JPH1064205A - Disk storage device - Google Patents

Abstract

(57) Abstract: In a disk storage device such as a removable disk storage device, a disk cartridge containing a disk-shaped information storage medium can be loaded and unloaded by a pop-up system. SOLUTION: A ramp for guiding a read / write head supported by a rotary support member and rotated and moved on a surface of a disk-shaped storage medium in a disk cartridge is provided outside a disk cartridge loading section provided with a spindle motor. After loading the disk cartridge from the disk cartridge, the disk cartridge is moved and inserted into the disk cartridge. When loading and unloading the disk cartridge from the disk cartridge loading section, the lamp is moved to the outside of the loading section so that the disk cartridge can be moved. Can be loaded and discharged by a pop-up method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-capacity storage device used in an information processing apparatus, and more particularly to a disk storage device using a hard disk as a disk-shaped information recording medium capable of reading / writing on both sides.

[0002]

2. Description of the Related Art Conventionally, a high-speed, large-capacity disk device represented by a removable hard disk device and a disk cartridge containing a hard disk as a storage medium used for the disk device have a disk storage medium 101 and a disk storage structure shown in FIGS. Cartridge 120 is known.

[0003] As shown in FIG. 20, a disk storage device 101 includes a main chassis 1 as main mechanical elements.
The disk drive 102 includes a disk rotation drive mechanism 104 provided in a disk cartridge loading section 103 having an insertion opening 103a in the front surface of the front half of the main body 102, and a read / write head mechanism 105 provided in the rear half of the main chassis 102. ing.

[0004] The disk rotation drive mechanism 104
A chucking magnet 107 is inserted through an opening 106 formed in the center of the bottom of the disc cartridge loading section 103.
Is mounted on a sub-chassis (not shown) disposed below the main chassis 102 so as to be moved up and down so that the spindle motor 108 having the .

The read / write head mechanism 105
The actuator 110 is located near the disk cartridge loading section 103 on the rear half of the main chassis 102 in order to reduce the size of the apparatus, and is mounted on a shaft 109 so that the actuator 110
A read / write head (hereinafter, referred to as an R / W head) H is attached to the tip of an actuator arm 111 that is rotationally driven by a suspension via a suspension 112 made of a leaf spring.

The actuator 110 of the read / write head mechanism 105 includes a movable coil 110a attached to the rear end of an actuator arm 111 and a flat magnet 110b fixed to the main chassis 102 side corresponding to the movable coil 110a. And R
The / W head H is provided with a pair of upper and lower heads.
A pair of upper and lower suspensions 112a and 112b is used as a suspension 112 attached to the distal end of the actuator arm 111.
2a and 112b are attached to the actuator arm 111 at predetermined intervals in the vertical direction so as to extend in the center line extending direction.
a, 112b are attached to a slider attached in a direction orthogonal to the center line on the inner surface side to the tip end, and are vertically opposed. A load bar 113 is fixed to the outer surface of the distal end of each of the suspensions 112a and 112b so as to protrude in the direction in which the distal end extends.

[0007] The read / write head mechanism 105 constructed as described above is positioned with the distal end of the actuator arm 111 including the suspensions 112a and 112b facing the inside of the disk cartridge loading section 103, and the loaded disk cartridge 120 is mounted. Therefore, the tip of the actuator arm 111a is formed in a bifurcated upper and lower shape, that is, a fork shape so as not to interfere with the hard disk, and suspensions 112a and 112b are attached to the upper and lower pieces.

On the rear half side of the main chassis 102, an R / W head H is located near the disk cartridge loading section 103 and in front of the actuator arm 111.
A ramp 114 of a slide-shaped block, which is a guide, is fixed facing the inside of the disc cartridge loading section 103. Since the ramp 114 is also inserted into the loaded disc cartridge 120, it is forked so as not to interfere with the hard disk. That is, the recess is formed to form a fork shape. On the upper and lower surfaces of this ramp 114, suspensions 112a, 11
When the load bar 113 at the tip of 2b slides,
The distance between the suspensions 112a and 112b,
The distance between both R / W heads H is maintained.

In the latter half of the main chassis 101,
A circuit board 115 on which a control circuit of the actuator 110, a read / write amplifier of the R / W head H, etc. are mounted is connected to the actuator arm 111 side by a flexible wiring board.

On the other hand, the disk cartridge 120 is shown in FIG.
As shown in FIG. 2 and FIG. 22, a double-sided readable / writable magnetic disk, that is, a hard disk, is rotatably housed in upper and lower halves 121, 122 each having a right-angled quadrilateral shape and a disk housing 123 between the halves 121, 122. 1
24. A hub 125 made of a ferromagnetic material is attached to the center of the hard disk 124, and corresponds to a center hole 126 formed in the lower half 122.

On the front side of the disk cartridge 120, an opening 127 is formed across the upper and lower halves 121 and 122, into which the distal end of the actuator arm 111 is inserted together with the suspensions 112a and 112b to which the R / W head H is mounted. The opening 127 is provided with a shutter 128 for opening and closing the opening. The shutter 128 is rotatably supported on the upper half 121 side by a shaft 129 so as to be vertically rotatable by a shaft 129. When the cartridge is not used, the shutter 127 is closed to prevent intrusion of dust, fingers, and the like. It is configured to open automatically by the loading operation to the 101.

Thus, as shown in FIG. 20, in order to load the disk cartridge 120 into the disk storage device 101, the disk cartridge loading section 103 in the front half of the main chassis 102 is inserted through the front insertion opening 103a.
When inserting horizontally with the opening 127 side toward the front,
A shutter 128 is operated by a shutter opening / closing mechanism (not shown).
Is automatically opened, and the opening 127 is opened. Then, when the disk cartridge 120 is inserted to a predetermined position, as shown in FIG.
A portion where both the suspensions 112a and 112b are applied from the front end of the hard disk 1 and the slide-like portion of the ramp 114 are located in the cartridge from the opening 127 and the hard disk 1
A part of the outer periphery of the lamp 24 is located in the recess of the lamp 114. In this state, both suspensions 112a, 112
As for b, the interval between the R / W heads H is larger than the thickness of the hard disk 124 because the load bar 113 is in contact with the high position of the ramp 114 and the interval is widened and held.

In this state, the spindle motor 108 of the disk rotation drive mechanism 104 moves upward to project a predetermined height from the opening 106 at the center of the bottom of the cartridge loading section 103, and the hub of the hard disk 124 is attracted by the chucking magnet 107. 125 lower half 122
Suction through the center hole 126 of the spindle motor 10
8 and the hard disk 124 are integrated, that is, the hard disk 124 is chucked by the spindle motor 108.

After that, when the spindle motor 108 rotates and reaches a constant angular velocity, the actuator arm 111 is rotated by the actuator 110 inward of the cartridge, that is, in the direction of the hard disk 124 so that the load bar 11 of both suspensions 112a and 112b is rotated.
3 slides down from the high surface of the ramp 114 in the low direction, so that the magnetic head H gradually enters a landing state on the surface of the hard disk 124. This landing causes an aerodynamic effect between the rotation of the hard disk 124 and the slider supporting the R / W head H, that is, an air film is generated between the surface of the hard disk 124 and the slider, and the number of sliders is reduced. The R / W head H and the hard disk 124 do not come into contact with each other in a flying state of 10 nm.

In this state, the read / write of information to / from the hard disk 124 is performed by positioning the R / W head H on a predetermined track by rotating the actuator arm 111.

[0016]

In the disk storage device constructed as described above, the actuator arm 111 for moving the R / W head H and the ramp for separating the R / W head H from the hard disk 124 are provided. 11
4 and the disk cartridge loading section 103, so that the disk cartridge loading section 1
03 cannot be loaded and ejected in a pop-up manner, and must be inserted parallel to the bottom of the loading section 103 with the opening 127 opened so as not to interfere with the actuator arm 111 and the lamp 114. Therefore, the disk cartridge 120
It is necessary to hold the bottom surface of the loading unit 103 in a flat state when inserting and removing the loading unit 103 from the loading unit 103.

Therefore, the spindle motor 108 that sucks and rotates the hard disk 124 in the disk cartridge 120 on the bottom surface of the loading unit 103 needs to be lowered from the bottom surface of the loading unit 103 when the disk cartridge 120 is inserted and removed. In order to move the spindle motor 108 up and down, the support mechanism of the spindle motor 108 is required to have stability and reliability, resulting in a complicated structure and high cost.

Further, the actuator arm 111 and the ramp 114 are formed in a fork shape in cross section because a relief portion for preventing interference with the hard disk 124 is required. Therefore, the actuator arm 111 itself has difficulty in strength. Further, the lamp 114 has a concave portion opened to the hard disk 124 side, so that the actuator arm 111 is rotated in a state where the disk cartridge 120 is not loaded for some reason and the lamp 114 returns when the actuator cartridge 111 is rotated. The suspensions 112a and 112b to which the / W head H is attached may be inserted into and engaged with the recesses of the ramp 114, and may not be able to rotate back, or the R / W head H may be damaged.

Further, since the disk cartridge 120 is inserted into the actuator arm 111,
The angle of the soldering portion of the wiring of the R / W head H is limited to a small value in order to prevent interference with the disk cartridge 120, and there is a problem that workability such as wiring and soldering work is deteriorated.

In the conventional apparatus, when loading the disk cartridge 120, the actuator arm 11 is used.
(1) Since the guide mechanism needs to be inserted so as not to interfere with the lamp 114 and the like, high precision is required for the guide mechanism, which has caused an increase in cost.

The present invention has been made in view of the above points, and has as its object to provide a disk storage device whose operation can be performed reliably and stably and cost can be reduced.

[0022]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a disk cartridge in which a disk-shaped information recording medium of which both sides are readable / writable is rotatably housed, provided with a rotation driving mechanism. The information recording device is removably loaded into the loaded disk cartridge loading section, and a read / write head supported by a rotary support member axially mounted on the outside of the disk cartridge loading section is inserted into the disk cartridge to rotate and drive. In a disk storage device in which information is read / written in accordance with movement on a recording surface of a medium, a ramp for guiding a read / write head to move on a surface of the disk-shaped recording medium in the disk cartridge is provided by a ramp. After loading the above disc cartridge from outside the loading section, move it into the disc cartridge It is obtained so as to be input.

With this configuration, when loading and unloading the disk cartridge from the disk cartridge loading section, the lamp is moved outside the disk cartridge loading section so that the lamp does not interfere with the disk cartridge. The loading and unloading of the disc cartridge into and from the loading section can be performed by a so-called pop-up method. Therefore, the spindle motor for rotating and driving the information recording medium can be fixed to the bottom surface of the loading section without having a lifting mechanism. This increases the degree of freedom in designing.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk recording / reproducing apparatus as a disk storage apparatus according to the present invention will be described below with reference to the drawings. The disk recording / reproducing apparatus according to this embodiment records a new information signal on a hard disk (magnetic disk), which is a specific example of a disk-shaped recording medium, or reproduces an information signal recorded on the hard disk in advance. In addition, the present invention is applied to a disk recording / reproducing apparatus which is also used for reproduction, and will be described in the following order.

[1] Configuration of disk cartridge (FIG. 12) [2] External configuration of disk recording / reproducing apparatus (FIG. 2) [3] Internal configuration of disk recording / reproducing apparatus (3-1) Disk drive mechanism (FIG. 1) (3-2) Shutter opening mechanism (FIGS. 2 and 3) (3-3) Information recording / reproducing mechanism (FIGS. 1, 4, 9 to 11) (3-4) Disk loading mechanism (FIGS. 1 to 11) 8) [4] Operation of Disk Recording / Reproducing Apparatus (4-1) Initial State of Inserting Disk Cartridge (FIG. 13) (4-2) State Before Opening Shutter of Disk Cartridge (FIG. 14) (4-3) State after shutter release (FIG. 15) (4-4) Initial state of loading of hard disk (FIG. 16) (4-5) State of loading of hard disk (FIG. 17) (4-6) Hard disk Click loading completion state (FIG. 18) (4-7) unloading state of the hard disk (Fig. 19)

[1] Configuration of Disk Cartridge (FIG. 12) As shown in FIG. 12, the disk cartridge 1 has a pair of upper halves 2a and lower halves 2b which are vertically stacked.
A hard disk (magnetic disk) HD showing a specific example of a disk-shaped information recording medium rotatably housed in a disk housing chamber 3 formed in the disk housing 2; Similarly, a shutter member 4 rotatably accommodated in the disk accommodating chamber 3 and a shutter spring 5 for constantly urging the shutter member 4 in the surface direction of the disk accommodating chamber 3 are provided. And upper and lower half 2
The disc cartridge 1 is integrally formed by overlapping the opening surfaces of the a and 2b with each other and bonding the contact surfaces with an adhesive or by fastening the upper and lower halves 2a and 2b with fixing screws. ing.

The disk housing 2 of the disk cartridge 1 is formed of a thin container having a substantially square planar shape.
A grip notch 2c that is gripped by a user to take out the disk cartridge 1 from the disk recording / reproducing apparatus is provided on both sides of the rear portion. And
The center of the radius of curvature is offset from the center line L in the insertion direction to one side by offsetting the center of the radius of curvature at the front of the disk housing 2 which is to be inserted into the cartridge insertion slot of the disk recording / reproducing apparatus. 6 are formed. As a result, the length of one side surface 2d of the disk housing 2 is set shorter than the length of the other side surface 2e. The head insertion opening 7 which is a horizontally long opening extended in the horizontal direction by being chipped is opened.

The head insertion slot 7 has a disk housing 2
A magnetic head 8 as a read / write head for writing a new information signal to the information recording unit at the time of recording with respect to the hard disk HD accommodated therein, and reading / writing the information signal recorded at the information recording unit in advance at the time of reproduction. You. As shown in FIGS. 13 to 15, the head insertion opening 7 can be opened and closed by an arc-shaped shutter plate 4 a provided at the tip of a shutter member 4 housed in the disk housing chamber 3. The shutter member 4 has, in addition to the shutter plate 4a, a core hole opening / closing plate 4b that opens and closes a center core hole 9 formed substantially in the center of the lower half 2b. The plates 4a are integrally provided so as to intersect at right angles.

The base end of the shutter member 4, that is, the other end of the core hole opening / closing plate 4b is rotatable about a fulcrum shaft 2f which is provided so as to be slightly deviated from the rear center of the lower half 2b toward the long side surface 2e. It is pivoted on. By rotating the shutter member 4 about the fulcrum shaft 2f, the shutter plate 4a
Moves along the inner surface of the offset arc portion 6, and
The core hole opening / closing plate 4b moves along the inner surface of the disk storage chamber 3. When the shutter member 4 is on the short side 2d side, the shutter plate 4a closes the head insertion opening 7 and the core hole opening / closing plate 4b closes the center core hole 9. On the other hand, when the shutter member 4 moves toward the long side surface 2e, the shutter plate 4a opens the head insertion opening 7 and the core hole opening / closing plate 4b opens the center core hole 9. Therefore, a shutter notch 4c that can completely open the center core hole 9 when the shutter is opened is provided in the core hole opening / closing plate 4b of the shutter member 4.

The shutter member 4 is constantly urged by a shutter spring 5 composed of a torsion coil spring in a direction to close the head insertion port 7. The shutter spring 5 has its coil portion loosely fitted to a support shaft 2g provided so as to be biased further toward the long side surface 2e than the fulcrum shaft 2f of the lower half 2b. A spring piece 5a protruding from one end of the coil portion of the shutter spring 5 is in contact with the inner surface of the lower half 2b, and a spring piece 5b protruding from the other end of the coil portion is provided on the core hole opening / closing plate 4.
b is locked by a spring receiving piece 4d provided near the base end. In this embodiment, because of the mounting structure of the shutter member 4 urged by the shutter spring 5, particularly the shutter plate 4a, in the present embodiment, the portion of the lower half 2b that comes into contact with the shutter plate 4a and the peripheral portion thereof The thickness has been reduced.

Further, the core hole opening / closing plate 4b of the shutter member 4
Is provided with an operation arm 4e that protrudes in an arc shape on the side opposite to the shutter notch 4c. This operation arm 4e
An operation claw 4f is integrally provided at the tip of the.
The operation claw 4f is provided with a step in consideration of the thickness of the hard disk HD, so that the center of the operation claw 4f is exposed to the outside from the joint surface of the upper and lower halves 2a, 2b. ing. Thus, the operating arm 4e of the shutter member 4 penetrates the notch 2i provided in the arc-shaped side wall 2h formed at the rear of the lower half 2b, and the operating claw 4f connected to the tip of the operating arm 4e. Is exposed in a guide groove 10 provided to extend in the front-rear direction on a long side surface 2e of the disk housing 2 from a notch 2j provided in a joining surface of the upper and lower halves 2a and 2b.

The guide groove 10 has a wide portion 10a which is wide in the thickness direction (overlapping direction) set on the front side of the disk housing 2 and has a vertical width which is set on the rear side of the disk housing 2. A narrow narrow portion 10b, an introducing portion 10c formed at the tip of the wide portion 10a and also wide and inclined inward, and set between a rear portion of the wide portion 10a and a front portion of the narrow portion 10b. Open / close operation unit 10d. In the opening / closing operation portion 10d of the guide groove 10, the wide portion 1
0a to the narrow portion 10b, the upper half 2
a and an inclined surface 10e are formed on each of the lower half 2b. The inclined surface 10e guides an operation piece of a shutter opening lever, which will be described later, to smoothly move the operation piece from the wide portion 10a to the narrow portion 10b. It has been made possible.

The depth T of the narrow portion 10b of the guide groove 10
b is formed sufficiently deeper than the depth Ta of the wide portion 10a (Tb> Ta), so that even when the shutter member 4 is completely opened, the operation claw 4f can move the guide groove 1f.
I try not to jump outside from 0. The side surface of the opening / closing operation portion 10d having such a step is formed by a part of the above-described arc-shaped side wall 2h, and the outer surface thereof is smoothly continued in an arc shape. The operation claw 4f of the shutter member 4 described above is located in the narrow portion 10b of the guide groove 10, and only the tip of the operation claw 4f always projects into the guide groove 10 at all times.

The hard disk HD is made up of a disk-shaped disk-shaped recording member having upper and lower surfaces serving as signal recording surfaces according to a magnetic recording system, and a center core 11 attracted by a magnet of a spindle motor 12 at a central portion thereof.
Are integrally fixed. The center core 11 of the hard disk HD has a center core hole 9 formed in the lower half 2b.
When the center hole 9 is opened by the rotation of the core hole opening / closing plate 4b, the center hole 9 comes into contact with the turntable-integrated spindle motor 12 inserted from the center core hole 9. The above-described ring-shaped magnet is fitted and integrally provided on the rotating portion of the spindle motor 12, and the hard disk HD is chucked by the spindle motor 12 by the attraction force of the magnet and integrally rotated. Driven.

As shown in FIG. 13 and the like, an erroneous erasure prevention tab 13 for switching the presence or absence of a write-protection hole is provided on one side of the rear part of the disk cartridge 1. Further, positioning holes 14a and 14b for loading the disc cartridge 1 to a predetermined position of the disc recording / reproducing apparatus are provided near the erroneous erasure prevention tab 13 and near the shutter spring 5 located on the opposite side. Is provided.

Although not shown in FIG. 13 and the like, the core hole opening / closing plate 4b of the shutter member 4 is provided with one or more guide grooves extending in an arc around the fulcrum shaft 2f.
A guide pin provided on the lower half 2b is slidably engaged with the guide groove. The opening of the head insertion opening 7 and the center core hole 9 is smoothly performed by guiding the rotation of the shutter member 4 with the guide pin engaged with the guide groove.

The upper and lower halves 2a,
As the material of 2b, for example, a synthetic resin material such as polycarbonate PC is suitable, but other synthetic resins can also be used. In this embodiment, the shutter member 4 is made of polycarbonate PC as the material of the shutter member 4.
On the other hand, a stainless steel plate is used for the core hole opening / closing plate 4b, and a polycarbonate PC shutter plate 4a is formed in two colors at the tip of the stainless steel plate.
The shutter member 4 is integrally formed. However,
The entire shutter member 4 may be formed of a synthetic resin material such as polycarbonate PC, and the entire shutter member 4 may be formed of a metal material such as a stainless steel plate.

[2] External Configuration of Disk Recording / Reproducing Apparatus (FIG. 2) The disk recording / reproducing apparatus of this example is of a pop-up type in which a cartridge holder 16 in which the disk cartridge 1 is mounted moves up and down. It is shown in FIG. This disk recording / reproducing apparatus has a disk drive mechanism 30, which is a rotation drive mechanism to be described later, a shutter opening mechanism 40, which is a shutter opening means, an information recording / reproduction mechanism 50, and a disk loading mechanism 60. The mechanical chassis 17 and the mechanical chassis 17
The cartridge holder 16 attached to the inside thereof so as to be able to ascend and open and close the front cartridge insertion opening 18.
And the like.

The mechanical chassis 17 is formed of a rectangular housing having a shallow bottom and opened on the upper surface. On both sides of the rear side inside the mechanical chassis 17, a support for supporting both ends of the rear portion of the cartridge holder 16 so as to be able to elevate is provided. Brackets 19 are mounted as a pair on the left and right. Bearing holes are provided at the rear portion of the support brackets 19, and each of the bearing holes has a pivoting fulcrum shaft 1 provided at both ends of the rear portion of the cartridge holder 16.
9a are rotatably fitted respectively.

The cartridge holder 16 is slightly smaller than the mechanical chassis 17 when viewed from above, and has a rectangular upper surface plate 16a.
And a side plate 16 continuous on both left and right sides of the top plate 16a.
b, 16c, and holding plates 16d, which are formed by bending the inner side plates 16b, 16c at appropriate widths continuously to the lower portions thereof.
16e, and a cartridge insertion port 18 is set at the front of a space surrounded by these. Therefore, the inside of the cartridge holder 16 is a space having a size corresponding to the size of the disk cartridge 1. The disk cartridge 1 is inserted into and removed from the cartridge insertion port 18, and the disk cartridge is loaded into the disk cartridge loading section.

Further, a part of each of the holding plates 16d, 16e is bent downward at the lower part of the both side plates 16b, 16c of the cartridge holder 16 so that the shaft supporting pieces 16f, 1c are formed.
6 g are provided. These shaft support pieces 16f, 16
g, a holder reinforcing shaft 20 as a reinforcing member between the cartridge holding portions is provided.
0 are fixed to the shaft supporting pieces 16f, 16
g. Further, stopper portions 22a and 22b are provided at an intermediate portion in the front-rear direction of the cartridge holder 16 to prevent a part of the side plates 16b and 16c from being bent inward to prevent the disc cartridge 1 from being inserted beyond a predetermined amount. (See FIG. 15).

At the front of one side plate 16b of the cartridge holder 16, openings 23a and 23b are provided which extend in the front-rear direction at a predetermined distance in the front-rear direction. The holding plate 1 is provided at the rear of the shaft supporting piece 16g of the other side plate 16c of the cartridge holder 16.
6e is bent downward so that the support piece 16h
The support piece 16h is provided with an engaging pin 24 protruding inward. The engagement pin 24 forms a part of a lock mechanism of the cartridge holder 16 which will be described later.

Further, the upper plate 1 of the cartridge holder 16
Pressing plate springs 25 are attached to both front sides of 6a so as to correspond to above the holding plates 16d and 16e.
The presser plate spring 25 urges the inserted disk cartridge 1 toward the holding plates 16 d and 16 e to position the disk cartridge 1 relative to the cartridge holder 16 in the height direction. As a material of the cartridge holder 16 and the mechanical chassis 17, for example, a metal sheet metal material such as a stainless steel plate is suitable, but an engineering plastic having high mechanical strength such as polyacetal can also be used.

[3] Internal Configuration of Disk Recording / Reproducing Apparatus (3-1) Disk Driving Mechanism (FIG. 1) This disk recording / reproducing apparatus has a disk driving mechanism 30 as shown in FIG. This disk drive mechanism 3
Reference numeral 0 denotes a turntable-integrated spindle motor 12 for chucking the hard disk HD of the disk cartridge 1 described above. The spindle motor 12 is placed upward at the front central portion of the mechanical chassis 17, and a screw portion passing through the flange portion 12 a is screwed into a screw hole of the mechanical chassis 17 by a plurality of mounting screws 31. It is fastened and fixed on the mechanical chassis 17.

The flange portion 1 of the spindle motor 12
A plurality of cartridge support pins 32 for supporting the vicinity of the center core hole 9 of the disk cartridge 1 are provided in 2a. The magnet is attached to the rotating part of the spindle motor 12 as described above.
The center core 11 is attracted by the magnet and the hard disk HD is chucked on the rotating part, so that the hard disk HD is rotated and driven by the spindle motor 12 in the disk housing 2.

(3-2) Shutter Opening Mechanism (FIGS. 2 and 3) The shutter opening mechanism 40 is used to open the head insertion opening 7 of the disk cartridge 1 mounted on the cartridge holder 16 by using the cartridge body as a trigger. And one side plate 16b of the cartridge holder 16.
It is arranged in. The shutter opening mechanism 40 includes a shutter opening lever 41 that is a balance arm member, and a coil spring 42 that is a specific example of an urging member that urges the shutter opening lever 41. The shutter opening lever 41 includes a lever main body 41a having a U-shaped cross section, an input piece 41b as a scanning end protruding from both sides of the lever main body 41 so as to be separated from each other in a lateral direction, and an operation piece 41c as an operation end. And a contact portion 41d protruding on the movement locus of the disk cartridge 1 is provided at the tip of the input piece 41b.

In order to attach the shutter opening lever 41 to the cartridge holder 16, front and rear openings 23a, 23b are formed in the side plate 16b of the cartridge holder 16.
A pair of pin support pieces 43a and 43b are provided by bending a part between them up and down. A lever body 41a of the shutter opening lever 41 is interposed between the pin support pieces 43a and 43b, and the respective pin support pieces 43a and 43b are provided.
The shaft pin 44 is passed through the pin hole provided in the lever body 41a and the pin hole provided in the lever main body 41a, and both ends of the shaft pin 44 are caulked, whereby the shutter opening lever 41 swings horizontally to one side of the cartridge holder 16. It is movably supported.

In this state, the input piece 41b of the shutter opening lever 41 is connected to the opening 2 behind the cartridge holder 16.
The action piece 41c is opposed to the front opening 23a. A coil portion of a coil spring 42 is loosely fitted to a shaft pin 44 which supports the shutter opening lever 41 on the cartridge holder 16, and a spring piece 42 a continuous with one end of the coil portion contacts the side plate 16 b. The spring piece 42b connected to the other end of the coil portion is in contact with the lever body 41a. Due to the spring force of the coil spring 42, the input piece 41b of the shutter opening lever 41 is urged in a direction to enter the opening 23b, and as a reaction, the action piece 41c is urged in a direction to come out of the opening 23a.

In order to limit the amount of rotation of the shutter opening lever 41, an input piece 4 is provided on the inner surface of the lever body 41a.
An input-side stopper 41e for preventing 1b from entering the opening 23b by a predetermined amount or more, and an operating-side stopper 41f for preventing the operating piece 41c from entering the opening 23a by a predetermined amount or more are set. . The input piece 41b of the shutter opening lever 41 enters the wide portion 10a through the introduction portion 10c of the guide groove 10 of the disk cartridge 1, and the action piece 41c is moved to the operation portion 10d of the guide groove 10.
Through the narrow portion 10b.

The input piece 41 of the shutter opening lever 41
As the function of b, in addition to functioning as an input section for operating force,
Since the disk cartridge 1 is also required to have an appropriate elasticity while maintaining a certain degree of rigidity, the guide groove 1 is used in this example.
The contact portion 41d is formed so as to be wider in the width direction of 0, and the distal end portion is bent in the depth direction of the guide groove 10. On the other hand, the function of the action piece 41c of the shutter opening lever 41 is to mainly press the operation claw 4f. It is formed to have high rigidity.

Thus, the operation claw 4 of the shutter member 4 is inserted into the narrow portion 10b of the guide groove 10 of the disc cartridge 1.
When the operating claw 4f is pressed by the action piece 41c of the shutter opening lever 41, the shutter member 4 is rotated against the spring force of the shutter spring 5 so that the head insertion port 7 The center core hole 9 is opened together.

(3-2) Information Recording / Reproducing Mechanism (FIGS. 1, 4, 9 to 11) The information recording / reproducing mechanism 50 is disposed at the rear of the mechanical chassis 17 and serves as a rotation support member. A dog-leg type rotary actuator 51, a pair of upper and lower sliders 52a and 52b floatingly attached to the tip of the rotary actuator 51, an actuator support table 53 for rotatably supporting the rotary actuator 51, and the like. Have. The actuator support base 53 is mounted on the mechanical chassis 17 and is fixedly fastened by fixing means such as mounting screws.

The rotation actuator 51 includes a rotation arm 55 fixed to an upper part of a rotation shaft 54 rotatably supported by an actuator support 53, a driving coil 56 fixed to the rotation arm 55, A pair of mounting plates 57a, 57b, and the mounting plates 57a, 57
b, a pair of suspensions 58a and 58b as elastic support members are provided. A pivot arm 55 of the pivot actuator 51 is rotatably supported by a pivot shaft 54 via a bearing 59 fitted and fixed to a middle part in the horizontal direction, and a fork part formed on one side thereof. 55a
, A fan-shaped drive coil 56 having a copper wire wound therearound is engaged and held.

As shown in FIG. 7, steps are provided on both the upper and lower surfaces of the distal end of the rotating arm 55, and the base ends of the mount plates 57a and 57b are fitted to these steps.
By fixing this base end with a fixing means such as an adhesive, a pair of mount plates 57a and 57b are opposed to each other with a predetermined gap in the vertical direction. The pair of mount plates 57a and 57b are formed in an inverted L shape, and the base ends of the suspensions 58a and 58b are fixed to the inner surfaces of the distal ends of the mount plates 57a and 57b by fixing means such as an adhesive. I have.

The pair of suspensions 58a, 58b
The rigidity of the base end is set to be low by providing an opening 60 at the center of the base end to reduce the rigidity. In this manner, the sliders 52a and 52b attached to the distal end portions can be easily moved up and down by lowering the rigidity of the proximal end portions of the suspensions 58a and 58b to impart great flexibility to the distal end side. It has been made possible.

Further, in the middle of each of the suspensions 58a, 58b, a convex portion 61 projecting hemispherically inward is provided.
a, 61b are provided. This suspension 58
A ramp, which will be described later, is inserted between the convex portions 61a, 61b of the a, 58b during loading and unloading, whereby the front ends of the two suspensions 58a, 58b are spread so as to be separated in the vertical direction, and the upper and lower sliders are extended. The upper and lower surfaces 52a and 52b of the hard disk HD do not come into contact with each other.

As the shape of the pair of sliders 52a, 52b, for example, those having a structure as shown in FIGS. 9 to 11 can be used. FIG. 9 shows a transverse pressure contour type slider (hereinafter, referred to as "TPC type slider") 52A as an intermediate flying type slider. In this TPC type slider 52A, an air flow groove 62 extending in the front-rear direction is formed in the center of the back surface of the block-shaped slider body, and ridges 63 located on both sides thereof face the upper and lower surfaces of the hard disk HD. Disk opposing surface 63a, and the disk opposing surface 63a
Flow groove step 63 formed on both sides of
b, 63c, and a tapered surface 63d formed on the rotation direction front side of the ridge 63.

According to the TPC type slider 52A, a constant representing how the parallelism between the disk facing surface of the slider floating above the surface of the hard disk HD and the disk surface varies inside and outside the disk radial direction.・ Flying height performance (hereinafter referred to as “CFH performance”) can be improved, speed dependency is low, and substantially flat performance can be obtained both inside and outside in the disk radial direction. Thus, the slider can be floated from the disk surface with good stability.

FIG. 10 shows a catamaran type slider 52B. This catamaran type slider 52B is
It forms the basic form of the TPC type slider 52A.
Has a structure from which is removed. Although the catamaran type slider 52B has a slightly lower CFH performance than the TPC type slider 52A, it can sufficiently withstand actual use.

FIG. 11 shows a negative pressure type slider 52C. This negative pressure type slider 52C generates a negative pressure on the back surface of the slider by the air flow groove 64,
This negative pressure causes the slider to fly above the disk surface. According to the negative pressure type slider 52C, C
The FH performance is as good as the TPC type slider 52A, a flat performance can be obtained, and the slider can be floated from the disk surface with good stability.

The sliders 52A-52 having such a configuration
A magnetic head 8 for both recording and reproduction is provided at the rear end of 52C, that is, at the rear side in the disk rotation direction. In each of the embodiments, the sliders 52A to 52C are set such that the center line X of the air flow grooves 62 and 64 and the center line Y of the suspensions 58a and 58b intersect at a predetermined intersection angle θ. .

Generally, in the conventional slider, the extending direction of the air flow groove is set in parallel with the extending direction of the suspension. In this embodiment, however, the intersection angle θ is about 70 °.
Is set to Thus, the suspension 58
By attaching the sliders 52a and 52b at a predetermined intersection angle θ with respect to the extending direction of the sliders a and 58b, the vent angle of the sliders 52a and 52b can be reduced. The intersection angle θ is not limited to 70 ° as in the present embodiment, but an appropriate angle can be set as needed.

As shown in FIG. 8, concave portions 64a and 64b are provided in the middle part of the rotating arm 55 by stealing the inside of both upper and lower surfaces.
The weight of the rotating arm 55 is reduced by 4a and 64b. On the other hand, a concave portion 6
A printed board 65 is disposed so as to close the opening 4a. By fixing the printed board 65 to the turning arm 55 with the mounting screw 66, the rigidity of the turning arm 55 is increased to improve the strength. ing.

This is because the rotating arm 5 is
5 is intended to reinforce the strength and increase its rigidity. In general, the printed board 65 has a flat base plate 65a made of an insulator on the surface of which an electronic circuit is formed by printing a conductor, and a coating film 65b laminated on the conductor side of the base plate 65a. 65a is used as a reinforcing plate.
In addition, in this example, the strength of the rotating arm 55 is increased by making the cross-sectional shape of the rotating arm 55 box-shaped. Thus, the strength of the rotating arm 55 can be increased while the weight of the rotating arm 55 is reduced.

The printed board 65 is connected to a connector 68 via a flexible cable 67. The connector 68 is mounted on a wiring board 35 arranged on the side of the spindle motor 12.
Are fixed on the mechanical chassis 17. An electronic circuit is printed and formed of a conductor on the wiring board 35, and an amplifier 36 and other electronic components are electrically connected to the electronic circuit to constitute a control device.

Thus, the rotation actuator 51
Is bent substantially 90 degrees at the mount plate 57a, 57b, as shown in FIGS.
It is formed in an inverted L-shape as called a so-called dog leg. Due to such a shape, the rotary actuator 51 of the present example is called a dog leg type.

A flat magnet 37 curved and formed in an arc shape so as to face the drive coil 56 from below is mounted and fixed on the actuator support base 53 that rotatably supports the rotary actuator 51. I have. This magnet 37 has its NS poles magnetized in the plane direction, and adjusts the magnitude of the magnetic force acting between the drive coil 56 and the magnet 72 so that the rotation of the rotary actuator 51 can be controlled within a predetermined area. The moving position is automatically controlled. Outside the automatic control area, the disk gear is rotated by a cam gear of the disk loading mechanism 70 described below, and is locked at a predetermined rotation position.

In this embodiment, an aluminum alloy is used as the material of the rotating arm 55 and the mounting plate 57 is used.
Although stainless steel plates are used as the materials of the a and 57b and the suspensions 58a and 58b, they can be formed of engineering plastic or the like having high mechanical strength such as polyacetal. Further, the rotating arm 55
And the mount plates 57a and 57b may be integrally formed of the same material.

(3-4) Disk Loading Mechanism (FIGS. 1 to 8) This disk recording / reproducing apparatus has a disk driving mechanism corresponding to the disk driving mechanism 30, the shutter opening mechanism 40, and the information recording / reproducing mechanism 50 described above. A disk loading mechanism 70 for loading and unloading the hard disk HD with respect to the mechanism 30 is provided. The disk loading mechanism 70 is provided on the mechanical chassis 17 similarly to the disk drive mechanism 30.

The disc loading mechanism 70 includes a drive motor 71, a worm 72, a worm wheel 73, a cam gear 74, a ramp member 75, and an eject lever 76.
, A holder lock member 77, a pop-up spring 78, a pop-up suppressing plate 79, a positioning pin 80, a cartridge support pin 81, and the like. The drive motor 71 of the disc loading mechanism 70 is
, And a worm 72 is fixed to the rotation shaft thereof. The worm 72 is meshed with a worm wheel 73 rotatably supported by a support shaft 73a erected on the mechanical chassis 17.

The worm wheel 73 is integrally provided with an input gear not shown in the figure, and an intermediate gear 82a is meshed with the input gear. This intermediate gear 82
a is provided integrally with an output gear 82b,
These are rotatably supported by a support shaft 82c erected on the mechanical chassis 17. The output gear 82b is meshed with a gear portion 74a of a cam gear 74 rotatably supported by a cam shaft 83 also provided upright on the mechanical chassis 17.

The cam gear 74, which is a rotary cam mechanism as an operation mode switching means, is formed on a cam peripheral surface 74b having a circular outer peripheral surface formed on one surface side of the gear portion 74a and on the other surface side of the gear portion 74a. And a cam groove 74c. A part of the cam peripheral surface 74b is cut away and depressed inward to provide a cam relief part 74d, and by providing the cam relief part 74d, one end of the cam peripheral surface 74b protrudes in an arc shape in the circumferential direction. The cam action end 74e is formed. A cam projection 55a provided so as to protrude downward below the rotating arm 55 of the rotating actuator 51 is slidably or abutted on the cam peripheral surface 74b and the cam working end 74e.

The cam gear 74 causes the rotation of the rotary actuator 51, the movement of the ramp 91 for guiding the magnetic head 8 on the surface of the disk-shaped recording medium, and the ejection lever 76 for ejecting the disk cartridge 1 as described later. Operation is switched.

Thus, the state in which the cam projection 55a of the rotary actuator 51 is in sliding contact with the cam peripheral surface 74b of the cam gear 74 is in an arm locked state in which the rotary actuator 51 is completely protruded out of the disk cartridge 1 ( FIG. 16) or an unloading state in which the disc cartridge 1 is ejected out of the apparatus (see FIG. 19).
It is. A cam gear 74 is provided on the inner surface of the cam projection 55a.
The state in which the cam working end 74e is in contact is a state in which the magnetic head 8 is being loaded while the magnetic head 8 is being inserted into the disk cartridge 1 (see FIG. 17). The state in which the cam projection 55a is within the cam escape portion 74d of the cam gear 74 is a state where loading is completed (see FIG. 18). Only in the loading completed state, the rotation actuator 51 can automatically control the rotation position by the drive coil 56 and the magnet 37 described above.

The cam groove 74c of the cam gear 74 is formed so as to correspond to the cam peripheral surface 74b and the cam relief 74d. That is, the cam groove 74c is used only when ejecting the disk cartridge 1 out of the apparatus. Specifically, the cartridge holder 16 is moved to the mechanical chassis 17 through the operation of the eject lever 76.
The operation of releasing the holder lock mechanism that locks the disk cartridge 1 and the operation of ejecting the disk cartridge 1 from the cartridge holder 16 are executed.

For this reason, the cam groove 74c is
The opposite side of 4d extends in the circumferential direction on the outer peripheral side close to the cam peripheral surface 74b, enters the radial inside from a position rotated approximately 90 °, and enters the cam shaft 83 at a position rotated approximately 180 °. It is formed so as to come closest. A cam pin 84 of an eject lever 76 as an eject arm member is slidably engaged with the cam groove 74c.

The eject lever 76 is rotatably supported by a fulcrum shaft 85 erected on the mechanical chassis 17 at a middle portion in the longitudinal direction. The above-described cam pin 84 is attached to one end of the eject lever 76 in the longitudinal direction, and is engaged with the cam groove 74c of the cam gear 74 from below, as shown in FIGS. Further, a pressing portion 76a for rotating the holder lock member 77 of the holder lock mechanism is provided at the other end in the longitudinal direction of the eject lever 76.

Further, the fulcrum shaft 8 of the eject lever 76
A base end of an eject arm 86 is provided continuously and integrally in the vicinity of 5, and a cartridge pressing pin 87 is integrally provided at a distal end of the eject arm 86. Eject lever 76 having such a configuration
However, as shown in FIG. 16 and the like, the cam pin 84 side of the eject lever 76 extends rearward, the pressing portion 76a side extends diagonally forward, and the eject arm 86 extends laterally. It is arranged.

The pressing portion 76a of the eject lever 76
The holder lock mechanism provided so as to oppose the coil spring 8 for urging the holder lock member 77 described above to rotate.
8 is provided. As a material of the holder lock member 77,
In this example, a stainless steel plate is used, but it can be formed of engineering plastic or the like having high mechanical strength such as polyacetal.

As shown in FIG. 1 and the like, the holder lock member 77 is rotatably supported by a fulcrum shaft 89 erected on the mechanical chassis 17. This holder lock member 77 has a locking claw 77 provided with a claw point facing rearward.
a, a pressure receiving portion 77b abutting against the pressing portion 76a of the eject lever 76, and a spring receiving piece 77c to which one end of the coil spring 88 is locked. Further, the holder lock member 77 is provided with a plurality of arc grooves 77d extending in an arc shape in the circumferential direction around the fulcrum shaft 89,
A plurality of regulating pins 89a erected on the mechanical chassis 17 are slidably engaged with the respective arc grooves 77d.

The other end of the coil spring 88 is locked to one of the restriction pins 89a, and the holder lock member 77 moves the pressure receiving portion 77b closer to the pressing portion 76a by the spring force of the coil spring 88. Being energized. The amount of rotation of the holder lock member 77 is regulated to a predetermined position by a regulation pin 89a engaged with the arc groove 77d. Locking claw 77a of this holder lock member 77
Is engaged with the engagement pin 24 in a state where the cartridge holder 16 is inserted into the mechanical chassis 17, whereby the cartridge holder 16 is locked.

Below the cartridge holder 16,
A pop-up spring 78 made of a coil spring, which is a specific example of the urging member, is provided. The pop-up spring 78 is compressed when the cartridge holder 16 is mounted on the mechanical chassis 17 and is tilted up and down by releasing the holder lock mechanism. As shown in FIG. The front side is lifted. The amount by which the cartridge holder 16 is lifted is determined by the pop-up suppressing plate 7 serving as the rising-up restricting member.
9 As the pop-up spring 78, other than this example, a spring material such as a leaf spring can be used, and a rubber-like elastic body such as synthetic rubber can also be used.

The pop-up suppressing plate 79 has a J-shaped vertical cross-sectional shape, and a bearing piece 79a is provided on the upper side thereof so as to be parallel to the cross-sectional direction. A shaft pin 79b is fixed to the bearing piece 79a of the pop-up suppressing plate 79, and the shaft pin 79b
It is rotatably supported at zero. This support bracket 9
Reference numeral 0 is fixed to the mechanical chassis 17 by fixing means such as mounting screws.
Is attached to the mechanical chassis 17 via a support bracket 90 so as to be able to be raised and lowered in the vertical direction. As shown in FIG. 3, the pop-up suppressing plate 79 has a hook portion on the distal end side slidably engaged with the small-diameter portion 20a of the holder reinforcing shaft 20 described above. (Upward movement) is restricted.

Further, a lamp 91 for temporarily widening the interval between the pair of sliders 52a and 52b is provided near the distal end of the above-mentioned rotary actuator 51 on the back side of the mechanical chassis 17. The ramp 91 includes a ramp arm 9 inserted between a pair of sliders 52a and 52b.
2 and pressing the rear side of the rotating arm 55 to move the slider 52
a, and a pressing portion 93 for moving the cartridge 52a to the cartridge side. As a material of the lamp 91, for example, a synthetic resin material such as polyacetal (POM) is suitable, but other synthetic resin materials can also be used.

A pair of parallel guide shafts 94a and 94b are slidably penetrated through the lamp 91. Both front and rear end portions of the pair of linear guide shafts 94a and 94b are sandwiched from above and below by a pair of bearing blocks 96 and shaft holding pieces 96a from front and rear, thereby being fixed to the mechanical chassis 17 and supported at both ends. A ramp arm 92 is arranged above the middle of these linear guide shafts 94a and 94b.

The ramp arm 92 is set on the movement trajectory of the convex portions 61a and 61b provided on the upper and lower suspensions 58a and 58b of the rotary actuator 51. A pair of upper and lower sliders 52a and 52b Is configured to move. As shown in FIG. 7, inclined surfaces 92a are provided on both upper and lower surfaces of the distal end portion of the lamp arm 92 so that the convex portions 61a and 61b can easily climb up.

A coil spring 95 for urging the lamp 91 toward the spindle motor 12 has one end locked by a spring locking piece 91a provided on the lamp 91 and the other end fixed to the mechanical chassis 17 by a spring receiver. The pin 97 is locked. The forward movement of the coil spring 95 due to the spring force is restricted by a stopper pin 98 disposed between the pair of linear guide shafts 94a and 94b and fixed to the mechanical chassis 17. The amount of movement of the rotation actuator 51 in the direction away from the spindle motor 12 is limited by a stopper shaft 69 provided on the back side and fixed to the mechanical chassis 17.

Further, a pair of positioning pins 80 are provided on both sides of the front of the mechanical chassis 17. The positioning pins 80 are provided with positioning holes 1 of the disc cartridge 1.
4a and 14b are fitted respectively, thereby positioning the disk cartridge 1 in the plane direction. The cartridge support pins 81 are erected on the mechanical chassis 17 so as to support the four corners of the disk cartridge 1.
Is positioned in the height direction.

The disk drive mechanism 30, the shutter opening mechanism 40, the information recording / reproducing mechanism 50, and the disk loading mechanism 70 configured as described above are combined. That is, as shown in FIG. 2, the cartridge holder 16 is fitted into the mechanical chassis 17, and the left and right support brackets 19 that rotatably support the rear end of the cartridge holder 16 are screwed at predetermined positions. Thereby, the mechanical chassis 1
Above the spindle motor 12 fixed to 7, the cartridge holder of the cartridge holder 16 corresponds. As described above, the disk recording / reproducing apparatus of the present embodiment is configured.

[4] Operation of Disk Recording / Reproducing Apparatus Next, the operation of the disk recording / reproducing apparatus configured as described above will be described.

(4-1) Initial state of insertion of the disk cartridge As shown in FIG. 2, when the front part of the cartridge holder 16 is popped up, the cartridge insertion opening 18 is opened and the disk cartridge 1 can be inserted. .

From this state, as shown in FIG. 13, the disc cartridge 1 is pushed into the cartridge insertion port 18 from the offset arc portion 6 side. At this time, the shutter opening lever 41 of the shutter opening mechanism 40 provided on the side surface of the cartridge holder 16 causes the tip of the input piece 41b to largely enter the opening 23b due to the spring force of the coil spring 42, and acts as a reaction. The piece 41c enters the opening 23a slightly. The input piece 41 b of the shutter opening lever 41 is located forward of the movement locus of the guide groove 10 provided on the side surface of the cartridge holder 16.
The contact portion 41d provided at the tip of the is located.

(4-2) State before the Disc Cartridge is Opened with the Shutter Next, as shown in FIG. 14, when the disc cartridge 1 is pushed and inserted deeply, the shutter opening lever 41 which is largely inserted into the cartridge holder 16 abuts. Part 4
1d comes into contact with the introduction portion 10c of the guide groove 10, and is pressed by the inclined surface of the introduction portion 10c, so that the shutter opening lever 41 is pressed.
Is rotated clockwise in FIG. 4 against the urging force of the coil spring 42. Thereby, the contact portion 41d of the shutter opening lever 41 enters the wide portion 10a of the guide groove 10. At the same time, the action piece 41c of the shutter opening lever 41 enters the operation portion 10d of the guide groove 10. The action piece 41c is guided by the upper and lower inclined surfaces 10e and guided to the narrow portion 10b.
Abuts the operation claw 4f of the shutter member 4 located on the front side of.

(4-3) State of Disc Cartridge After Opening Shutter Further, as shown in FIG. 15, when the disc cartridge 1 is further pressed and inserted to a predetermined position, the movement of the disc cartridge 1 is shifted to the left and right of the cartridge holder 16. The hard disk HD, which is limited by the stopper pieces 22a and 22b and is accommodated in the disk accommodation chamber 3, corresponds to the upper part of the spindle motor 12 of the disk drive mechanism 30.

At this time, when the operating claw 4f of the shutter member 4 is pushed by the action piece 41c of the shutter opening lever 41 of the shutter opening mechanism 40 and moves to the rear end of the narrow portion 10b of the guide groove 10, the shutter member 4 Is rotated clockwise in FIG. 15 about the fulcrum shaft 2f. Thereby, the shutter plate 4a of the shutter member 4 and the core opening / closing plate 4
b moves in the same direction.
Insertion opening 7 and core opening / closing plate 4 closed by
The center core hole 9 closed by b is opened. Thus, the operation of inserting the disk cartridge 1 into the cartridge holder 16 is completed.

(4-4) Initial Loading State of Hard Disk Next, the front part of the cartridge holder 16 whose front part protrudes from the mechanical chassis 17 in the state shown in FIG. And press. Thereby, the cartridge holder 16 is moved to the mechanical chassis 17.
The disk housing 2 of the disk cartridge 1 is inserted into the four cartridge support pins 8 of the mechanical chassis 17.
1.

As a result, the four corners of the disk cartridge 1 are supported from below by the four cartridge support pins 81, whereby positioning in the height direction is performed. At the same time, two positioning pins 80 of the mechanical chassis 17 are engaged with a pair of left and right positioning holes 14a and 14b of the disk cartridge 1, and the conical portion 80a of the positioning pin 80 reduces the play in the surface direction of the disk cartridge 1. Thus, the disk cartridge 1 is positioned in the surface direction.

At this time, the center core 11 of the hard disk HD housed in the disk cartridge 1 is attracted by the magnet of the spindle motor 12. As a result, the hard disk HD is
The hard disk HD is integrally rotated by driving the spindle motor 12.

As shown in FIG. 16, when the cartridge holder 16 is pushed into the mechanical chassis 17, an operation switch provided in conjunction with the pushing operation is operated, or the cartridge holder 16 is manually operated thereafter. By operating the operation start switch, the drive motor 71 is rotated. When the drive motor 71 is started, the rotational force of the worm 72 fixed to the rotation shaft is transmitted from the gear portion 74a to the cam gear 74 via the gear 73a, the intermediate gear 82a, and the output gear 82b from the worm wheel 73 meshing with the worm 72. Is transmitted.

At this time, the entire rotary actuator 51 of the information recording / reproducing mechanism 50 is pushed out of the disc cartridge 1 by the action of the cam gear 74.
The upper and lower sliders 52a, 5a attached to the tip of the rotary actuator 51 which is bent like a dog leg at the mount plates 57a, 57b.
Reference numeral 2b corresponds to the outside of the head insertion opening 7 opened by the retreating operation of the shutter plate 4a.

That is, the outer end of the cam projection 55b provided on the rotation arm 55 of the rotation actuator 51 is connected to the cam gear 74.
Since the stopper shaft 69 is located outside the rotating arm 55 while being in contact with the cam peripheral surface 74b of the
1 is locked. Further, the ramp 91 is pulled toward the spindle motor 12 by the spring force of the coil spring 95, and the ramp arm 92 is moved upward and downward by the suspension 58.
a, 58b, the projections 61a, 61b of the suspensions 58a, 58b as shown in FIG.
By 1b, the sliders 52a and 52b are spread in a direction away from each other. Since the lamp 91 is in contact with the stopper pin 98, the movement of the lamp 91 to the front side is prevented.

Further, the cam pin 84 engaged with the cam groove 74c of the cam gear 74 is located at the outermost periphery of the cam groove 74c. Therefore, the eject lever 76 having the cam pin 84 at the tip of one arm is in a posture as shown in FIG. 16, and the pressing portion 7 provided at the other tip.
6a is separated from the pressure receiving portion 77b of the holder lock member 77 of the holder lock mechanism. The cartridge pressing pin 87 provided at the end of the eject arm 86
It is located behind the disk cartridge 1.

(4-5) During Loading of Hard Disk As shown in FIG. 17, when the cam gear 74 is slightly rotated clockwise by the drive of the drive motor 71, the rotation actuator 51 Power is ramp 91
Of the coil actuator 95, a biasing force in the counterclockwise direction acts on the rotary actuator 51. As a result, the cam projection 55b of the rotating arm 55 is
The rotation actuator 51 is rotated counterclockwise because it goes around the cam action end 74e provided at one end of 4b and enters the cam escape portion 74d.

As a result, the upper and lower suspensions 58a and 58b provided at the tip end of the dog leg type rotary actuator 51 on the turning side enter the head insertion opening 7 of the disk cartridge 1 and the upper and lower suspensions attached to the tip end thereof. Sliders 52a and 52b approach the outer periphery of the hard disk HD. At this time, since the cam pin 84 of the eject lever 76 is located at the outermost periphery of the cam groove 74c of the cam gear 74, the postures of the eject lever 76 and the eject arm 86 do not change.

(4-6) Loading Complete State of Hard Disk When the cam gear 74 is turned, the cam projection 55b of the turning arm 55 completely enters the cam escape portion 74d of the cam gear 74 as shown in FIG. While the rotation control of the rotation actuator 51 by the cam gear 74 is released, the automatic control by the voice coil motor including the drive coil 56 and the magnet 37 is started. Thus, the loading of the hard disk HD is completed, and the upper slider 52a faces the upper surface of the hard disk HD, and the lower slider 52b faces the lower surface.

As a result, the upper and lower sliders 52a, 52a, 5b are driven by the aerodynamic effect of the rotation of the hard disk HD.
2b is slightly lifted from the surface of the hard disk HD, and the sliders 52a and 52b can move in the radial direction of the hard disk HD in the floating state. As a result, the magnetic head 8 provided on each of the sliders 52a and 52b moves on the information recording surface of the hard disk HD, and the magnetic head 8 reads out an information signal recorded in advance on the information recording surface to read the information. Reproduction is performed, or recording of information for newly writing an information signal on the information recording surface is performed.

In this case, the rotary actuator 51 of this embodiment is of a dog leg type, and the suspensions 58a, 58b and the
Since a and 57b enter and exit in a direction substantially perpendicular to the head insertion port 7, the width of the head insertion port 7 can be minimized. Therefore, it is possible to reliably prevent the intrusion of dust or effectively suppress the intrusion by minimizing the size of the head insertion opening 7 into which the dust that may possibly enter the disc cartridge 1 is likely to enter. it can. Since the disk cartridge 1 has a structure in which the offset arc portion 6 is provided on the tip end side, the space in the mechanical chassis 17 can be more effectively used than in a conventional rectangular disk cartridge.

(4-7) Unloading state of hard disk (during cartridge ejection) When a command to eject a cartridge is given to the control device by operating an ejection operation button (not shown),
The drive motor 71 is driven to rotate in the reverse direction, and the cam gear 74
Starts rotating in the opposite direction to that during disk loading.

As a result, as shown in FIG. 19, when the cam gear 74 is rotated counterclockwise, the cam gear 7 is rotated.
4 comes into contact with the cam projection 55b of the rotating arm 55 in the counterclockwise direction.
Is rotated clockwise about the rotation shaft 54. As a result, the cam projection 55b is moved to the cam peripheral surface 7 of the cam gear 74.
4b, the rotary actuator 51 is moved to the position shown in FIG.
The posture changes to the initial posture indicated by 6. At the same time, the rotation of the rotation actuator 51 in the counterclockwise direction causes the lamp 9 to rotate.
Since the first pressing portion 93 is pressed to the rear side, the lamp 91 is pressed.
Moves backward to the rear side against the urging force of the coil spring 95, and is locked in the unloading state.

At this time, since the cam pin 84 of the eject lever 76 moves from the outermost peripheral portion to the innermost peripheral portion of the cam groove 74c of the cam gear 74, the eject lever 76 is rotated clockwise about the fulcrum shaft 85. You. Thereby, on the one hand, the pressing portion 76a of the eject lever 76 is pressed by the pressure receiving portion 77 of the holder lock member 77 of the holder lock mechanism.
b, and rotates the holder lock member 77 counterclockwise against the spring force of the coil spring 88.

As a result, the locking claw 77a of the holder lock member 77 is disengaged from the engaging pin 24 of the cartridge holder 16, and the locked state in which the cartridge holder 16 is held horizontally with respect to the mechanical chassis 17 is released. As a result, while the front side of the cartridge holder 16 is lifted by the spring force of the pop-up spring 78, the amount of the lift is limited by the pop-up suppression in which the front end side is engaged with the small diameter portion 20 a of the holder reinforcing shaft 20 provided on the cartridge holder 16. The state is limited by the plate 79 and the state as shown in FIG. 2 is restored.

At the same time, when the eject arm 86 rotates in the same direction in conjunction with the eject lever 76, the cartridge pressing pin 87 provided at the tip of the arm contacts the offset arc portion 6 of the disc cartridge 1 from behind. . Then, the disc cartridge 1 urged toward the holding plates 16 d and 16 e of the cartridge holder 16 by the pair of left and right holding plate springs 25 is pushed forward by the pressing force of the eject arm 86. As a result, as shown in FIG. 19, the grip notch 2c side of the disk cartridge 1 projects from the cartridge insertion port 18 by a predetermined amount. Therefore, the disk cartridge 1 can be easily taken out of the cartridge holder 16 by grasping the protrusion and pulling it out.

[0113]

As described above, the present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, recording and / or reproducing of information is performed on the upper and lower surfaces of the hard disk by the upper and lower magnetic heads. Although the device for performing the information has been described, the present invention can be applied to a device for recording and / or reproducing information only on one of the upper and lower surfaces of the hard disk. Further, in the above-described embodiment, an example is described in which the present invention is applied to a pop-up type recording / reproducing apparatus capable of reproducing information prerecorded on the hard disk HD and recording new information. The present invention can be applied not only to a slot-in type disk recording / reproducing apparatus having a slot but also to a disk apparatus capable of performing only one of recording and reproducing of information. in this way,
The invention is not limited to the embodiments described above,
Various changes can be made without departing from the spirit of the invention.

[0115]

As described above, according to the present invention, in the disk storage medium, the ramp for guiding the movement of the read / write head onto the surface of the disk-shaped storage medium in the disk cartridge is provided from the outside of the disk cartridge loading section. After loading the cartridge, it is configured to move and insert into the disk cartridge.When loading the disk cartridge, move the lamp to the outside of the disk cartridge loading section so that it does not interfere with the disk cartridge and The loading and unloading of the disc cartridge to the disc unit can be performed from above by the so-called pop-up method, and the spindle motor that rotates the information recording medium stored in the disc cartridge is fixed to the bottom of the loading unit without having a lifting mechanism Etc. Increases the flexibility of each part of the design, can be particularly simplified structure of a spindle motor portion and the chassis, the effect of such costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a disk recording / reproducing apparatus according to the present invention, showing a disk driving mechanism, an information recording / reproducing mechanism, and a disk loading mechanism housed in a mechanical chassis.

FIG. 2 is a perspective view of a state in which a mechanical chassis and a cartridge holder of the disk recording / reproducing apparatus of the present invention are combined.

FIG. 3 is an exploded perspective view showing a main part of a cartridge holder of the disk recording / reproducing apparatus shown in FIG. 2 in an enlarged manner.

FIG. 4 is an exploded perspective view showing an enlarged main part of the internal structure of the mechanical chassis shown in FIG. 1;

FIG. 5 is an explanatory diagram showing a main part of a disc loading mechanism of the disc recording / reproducing apparatus shown in FIG. 1 and showing a relationship between a cam gear and a rotating arm.

FIG. 6 is an explanatory diagram showing a main part of a disc loading mechanism of the disc recording / reproducing apparatus shown in FIG. 1 and showing a relationship between a cam gear and a cam pin.

FIG. 7 is an explanatory diagram showing a main part of an information recording / reproducing mechanism of the disk recording / reproducing device shown in FIG. 1, and showing a relationship between a rotary actuator and a ramp.

8 is a cross-sectional view of a pivot arm, showing a main part of an information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 9 is a perspective view showing a first embodiment of a slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 10 is a perspective view showing a second embodiment of the slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 11 is a perspective view showing a third embodiment of the slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 12 is a perspective view showing a part of a disk cartridge of the disk recording and reproducing apparatus shown in FIG.

13 is a plan view showing an initial state of insertion of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1;

14 is a plan view showing a state before a shutter of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1 is opened.

15 is a plan view showing a state after a shutter of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1 is opened.

FIG. 16 is a plan view showing an initial loading state of a hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

17 is a plan view showing a state in which the hard disk of the disk recording and reproducing apparatus shown in FIG. 1 is being loaded.

FIG. 18 is a plan view showing a completed loading state of a hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

19 is a plan view showing an unloaded state of the hard disk of the disk recording / reproducing apparatus shown in FIG.

FIG. 20 is a perspective view showing an example of a conventional disk recording / reproducing apparatus.

FIG. 21 is a plan view showing a state in which a disk cartridge is inserted into an apparatus main body of a conventional disk recording / reproducing apparatus.

FIG. 22 is an exploded perspective view showing a conventional disk cartridge.

[Explanation of symbols]

1 disk cartridge, 4 shutter member, 4
a shutter plate, 4b core hole opening / closing plate, 4f operation claw, 5 shutter spring, 6 offset arc portion,
7 head insertion slot, 8 magnetic head, 10 guide groove, 12 spindle motor, 16 cartridge holder, 17 mechanical chassis, 18 cartridge insertion slot, 30 disk drive mechanism, 40 shutter opening mechanism, 41 shutter opening lever, 50 information recording / reproducing mechanism 51 rotating actuator, 52
a, 52b slider, 55 rotating arm, 57
a, 57b mount plate, 58a, 58b suspension, 70 disc loading mechanism,
74 cam gear, 76 eject lever, 77 holder lock member, 84 cam pin, 86 eject arm, 91 lamp, 92 lamp arm, HD
Hard disk (disk-shaped recording medium)

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[Procedure amendment]

[Submission date] November 29, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Disk storage device

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-capacity storage device used in an information processing apparatus, and more particularly to a disk storage device using a hard disk as a disk-shaped information recording medium capable of reading / writing on both sides.

[0002]

2. Description of the Related Art Conventionally, a high-speed, large-capacity disk device represented by a removable hard disk device and a disk cartridge containing a hard disk as a storage medium used for the disk device have a disk storage medium 101 and a disk storage structure shown in FIGS. Cartridge 120 is known.

[0003] As shown in FIG. 20, a disk storage device 101 includes a main chassis 1 as main mechanical elements.
The disk drive 102 includes a disk rotation drive mechanism 104 provided in a disk cartridge loading section 103 having an insertion opening 103a in the front surface of the front half of the main body 102, and a read / write head mechanism 105 provided in the rear half of the main chassis 102. ing.

[0004] The disk rotation drive mechanism 104
A chucking magnet 107 is inserted through an opening 106 formed in the center of the bottom of the disc cartridge loading section 103.
Is mounted on a sub-chassis (not shown) disposed below the main chassis 102 so as to be moved up and down so that the spindle motor 108 having the .

The read / write head mechanism 105
The actuator 110 is located near the disk cartridge loading section 103 on the rear half of the main chassis 102 in order to reduce the size of the apparatus, and is mounted on a shaft 109 so that the actuator 110
A read / write head (hereinafter, referred to as an R / W head) H is attached to the tip of an actuator arm 111 that is rotationally driven by a suspension via a suspension 112 made of a leaf spring.

The actuator 110 of the read / write head mechanism 105 includes a movable coil 110a attached to the rear end of an actuator arm 111 and a flat magnet 110b fixed to the main chassis 102 side corresponding to the movable coil 110a. And R
The / W head H is provided with a pair of upper and lower heads.
A pair of upper and lower suspensions 112a and 112b is used as a suspension 112 attached to the distal end of the actuator arm 111.
2a and 112b are attached to the actuator arm 111 at predetermined intervals in the vertical direction so as to extend in the center line extending direction.
a, 112b are attached to a slider attached in a direction orthogonal to the center line on the inner surface side to the tip end, and are vertically opposed. A load bar 113 is fixed to the outer surface of the distal end of each of the suspensions 112a and 112b so as to protrude in the direction in which the distal end extends.

[0007] The read / write head mechanism 105 constructed as described above is positioned with the distal end of the actuator arm 111 including the suspensions 112a and 112b facing the inside of the disk cartridge loading section 103, and the loaded disk cartridge 120 is mounted. Therefore, the tip of the actuator arm 111a is formed in a bifurcated upper and lower shape, that is, a fork shape so as not to interfere with the hard disk, and suspensions 112a and 112b are attached to the upper and lower pieces.

On the rear half side of the main chassis 102, an R / W head H is located near the disk cartridge loading section 103 and in front of the actuator arm 111.
A ramp 114 of a slide-shaped block, which is a guide, is fixed facing the inside of the disc cartridge loading section 103. Since the ramp 114 is also inserted into the loaded disc cartridge 120, it is forked so as not to interfere with the hard disk. That is, the recess is formed to form a fork shape. On the upper and lower surfaces of this ramp 114, suspensions 112a, 11
When the load bar 113 at the tip of 2b slides,
The distance between the suspensions 112a and 112b,
The distance between both R / W heads H is maintained.

In the latter half of the main chassis 101,
A circuit board 115 on which a control circuit of the actuator 110, a read / write amplifier of the R / W head H, etc. are mounted is connected to the actuator arm 111 side by a flexible wiring board.

On the other hand, the disk cartridge 120 is shown in FIG.
As shown in FIG. 2 and FIG. 22, a double-sided readable / writable magnetic disk, that is, a hard disk, is rotatably housed in upper and lower halves 121, 122 each having a right-angled quadrilateral shape and a disk housing 123 between the halves 121, 122. 1
24. A hub 125 made of a ferromagnetic material is attached to the center of the hard disk 124, and corresponds to a center hole 126 formed in the lower half 122.

On the front side of the disk cartridge 120, an opening 127 is formed across the upper and lower halves 121 and 122, into which the distal end of the actuator arm 111 is inserted together with the suspensions 112a and 112b to which the R / W head H is mounted. The opening 127 is provided with a shutter 128 for opening and closing the opening. The shutter 128 is rotatably supported on the upper half 121 side by a shaft 129 so as to be vertically rotatable by a shaft 129. When the cartridge is not used, the shutter 127 is closed to prevent intrusion of dust, fingers, and the like. It is configured to open automatically by the loading operation to the 101.

Thus, as shown in FIG. 20, in order to load the disk cartridge 120 into the disk storage device 101, the disk cartridge loading section 103 in the front half of the main chassis 102 is inserted through the front insertion opening 103a.
When inserting horizontally with the opening 127 side toward the front,
A shutter 128 is operated by a shutter opening / closing mechanism (not shown).
Is automatically opened, and the opening 127 is opened. Then, when the disk cartridge 120 is inserted to a predetermined position, as shown in FIG.
The portion extending from the front end of the suspension 1 to both suspensions 112a and 112b and the slide-like portion of the ramp 114 are formed by an opening 127.
And a part of the outer peripheral portion of the hard disk 124 is located in the concave portion of the ramp 114. In this state, both suspensions 112a, 112a
2b, the interval between the R / W heads H is larger than the thickness of the hard disk 124, with the load bar 113 abutting on the high position of the ramp 114 to keep the interval wide.

In this state, the spindle motor 108 of the disk rotation drive mechanism 104 moves upward to project a predetermined height from the opening 106 at the center of the bottom of the cartridge loading section 103, and the hub of the hard disk 124 is attracted by the chucking magnet 107. 125 lower half 122
Suction through the center hole 126 of the spindle motor 10
8 and the hard disk 124 are integrated, that is, the hard disk 124 is chucked by the spindle motor 108.

After that, when the spindle motor 108 rotates and reaches a constant angular velocity, the actuator arm 111 is rotated by the actuator 110 inward of the cartridge, that is, in the direction of the hard disk 124 so that the load bar 11 of both suspensions 112a and 112b is rotated.
3 slides down from the high surface of the ramp 114 in the low direction, so that the magnetic head H gradually enters a landing state on the surface of the hard disk 124. This landing causes an aerodynamic effect between the rotation of the hard disk 124 and the slider supporting the R / W head H, that is, an air film is generated between the surface of the hard disk 124 and the slider, and the number of sliders is reduced. The R / W head H and the hard disk 124 do not come into contact with each other in a flying state of 10 nm.

In this state, the read / write of information to / from the hard disk 124 is performed by positioning the R / W head H on a predetermined track by rotating the actuator arm 111.

[0016]

In the disk storage device constructed as described above, the actuator arm 111 for moving the R / W head H and the ramp for separating the R / W head H from the hard disk 124 are provided. 11
4 and the disk cartridge loading section 103, so that the disk cartridge loading section 1
03 cannot be loaded and ejected in a pop-up manner, and must be inserted parallel to the bottom of the loading section 103 with the opening 127 opened so as not to interfere with the actuator arm 111 and the lamp 114. Therefore, the disk cartridge 120
It is necessary to hold the bottom surface of the loading unit 103 in a flat state without protrusions when inserting and removing the loading unit 103 from the loading unit 103.

Therefore, the spindle motor 108 that sucks and rotates the hard disk 124 in the disk cartridge 120 on the bottom surface of the loading unit 103 needs to be lowered from the bottom surface of the loading unit 103 when the disk cartridge 120 is inserted and removed. In order to move the spindle motor 108 up and down, the support mechanism of the spindle motor 108 is required to have stability and reliability, resulting in a complicated structure and high cost.

Since the ramp 114 is inserted into the disk cartridge 120 and corresponds to the hard disk 124, the leading end escapes the hard disk 124 and is formed in a fork shape.
If the slider of the R / W head H supported by the slider 2 is thin, the tip fork of the ramp 114 is also formed thin, which is disadvantageous in terms of mechanical strength and production technology.

To remedy this inconvenience, the tip of the suspension 112 is bent into a crank shape and the tip is slid into contact with the ramp 114 so that the fork of the tip of the ramp 114 can be formed to be thick to increase the mechanical strength. Although the thickness of the ramp 114 can be increased in this manner, the entire structure becomes thick, and it is difficult to reduce the thickness of the disk cartridge and the disk storage device.

Further, in order to improve the above-mentioned disadvantages, the R / W head H supported on the suspension 112
The slider may be formed thick, and a dimple provided on the abdominal surface of the suspension 112 may slide on the tip fork of the ramp 114. However, in this case as well, the entire structure becomes thicker and the disk cartridge and the disk storage device become thinner. Becomes difficult. In this case, the suspension 11
In order to form ribs on both sides of 2, the ribs are bent rearward, so that the entire structure becomes thicker, and it becomes more difficult to reduce the thickness of the disk cartridge and the disk storage device.

Also, in order to avoid forming the lamp 114 having such disadvantages in a fork shape,
There is also a method of supporting the side of the suspension 112,
In this case, since the support point is remarkably separated from the center line, the suspension 112 is twisted, and the slider of the R / W head H supported at its tip rolls. As a result, there is a problem. There is a disadvantage that stable loading and unloading cannot be performed.

In order to avoid forming the ramp 114 in a fork shape, there is a method of extending the tip of the suspension 112 and supporting the tip by the ramp 114. In this case, the area of the disk cartridge is reduced. In addition, there is a problem that the suspension 1
12, there is a problem in that stable loading and unloading cannot be performed.

Further, since the lamp 114 has the concave portion opened to the hard disk 124 side, the actuator arm 111 is rotated in a state where the disk cartridge 120 is not loaded for some reason and when the actuator arm 111 is rotated back, The suspensions 112a and 112b to which the / W head H is attached may be inserted into and engaged with the recesses of the ramp 114, and may not be able to rotate back, or the R / W head H may be damaged.

Further, since the fork-shaped portion of the ramp 114, the hard disk 124 and the load bar 113 are laminated in the disk cartridge 120, the thickness of the disk cartridge 120 itself increases, and the storage device can be made thinner. It was difficult.

Further, since the disk cartridge 120 is inserted into the actuator arm 111,
The angle of the soldering portion of the wiring of the R / W head H is limited to a small value in order to prevent interference with the disk cartridge 120, and there is a problem that workability such as wiring and soldering work is deteriorated.

In the conventional apparatus, when the disk cartridge 120 is loaded, the actuator arm 11
(1) Since the guide mechanism needs to be inserted so as not to interfere with the lamp 114 and the like, high precision is required for the guide mechanism, which has caused an increase in cost.

It is an object of the present invention to provide a disk storage device which has been made in view of the above points, can reliably and stably operate, and can reduce the cost.

[0028]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a disk cartridge in which a disk-shaped information recording medium is rotatably accommodated, which can be attached to and detached from a disk cartridge loading section provided with a rotation drive mechanism. And the read / write head at the tip of a rotary actuator having a rotation center outside the disk cartridge loading portion is inserted into the disk cartridge and moved onto the recording surface of the information recording medium which is driven to rotate. Read information /
In a disk storage device in which writing is performed, a ramp for guiding the movement of the read / write head over the surface of the disk-shaped recording medium in the disk cartridge is provided inside the disk cartridge after the disk cartridge is loaded from outside the disk cartridge loading section. The disk is moved and inserted so as to be located outside the outer edge of the disk, and is moved outside the disk cartridge when the disk cartridge is ejected.

According to the present invention, in addition to the above structure, the ramp is linearly moved with respect to the disk cartridge, and a substantially L-shaped arm is used for the rotary actuator.
The distance from the sliding contact portion with the ramp to the center of rotation is shorter than the distance from the rotating center to the head, and a sliding contact portion is provided at any one point on the suspension as an elastic support member of the rotary actuator. , This sliding contact part is drawing processing,
It can be made by outsert molding, the ramp is moved by two parallel guide shafts, the ramp is molded of polyacetal resin, and the suspension is formed with ribs on the same side as the sliding contact part A disk storage device that also includes a configuration.

In the disk storage device of the present invention thus configured, when loading and unloading the disk cartridge from / to the disk cartridge loading section, the lamp is moved to the outside of the disk cartridge loading section so that interference with the disk cartridge is prevented. However, this makes it possible to load and eject the disk cartridge to and from the loading section by a so-called pop-up method. Therefore, the spindle motor for rotating and driving the information recording medium must be fixed to the bottom surface of the loading section without a lifting mechanism. For example, the degree of freedom in designing each part is increased.

Also, the suspension as the elastic support member of the ramp and the rotary actuator can be formed thin, so that the disk storage device and the disk cartridge can be downsized.
The thickness can be reduced. In addition, the suspension is prevented from being twisted so that the head can be stably supported, and recording and / or reproduction can be reliably performed, thereby improving reliability.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk recording / reproducing apparatus as a disk storage apparatus according to the present invention will be described below with reference to the drawings. The disk recording / reproducing apparatus according to this embodiment records a new information signal on a hard disk (magnetic disk), which is a specific example of a disk-shaped recording medium, or reproduces an information signal recorded on the hard disk in advance. In addition, the present invention is applied to a disk recording / reproducing apparatus which is also used for reproduction, and will be described in the following order.

[1] Configuration of disk cartridge (FIG. 12) [2] External configuration of disk recording / reproducing apparatus (FIG. 2) [3] Internal configuration of disk recording / reproducing apparatus (3-1) Disk drive mechanism (FIG. 1) (3-2) Shutter opening mechanism (FIGS. 2 and 3) (3-3) Information recording / reproducing mechanism (FIGS. 1, 4, 9 to 11) (3-4) Disk loading mechanism (FIGS. 1 to 11) 8) [4] Operation of Disk Recording / Reproducing Apparatus (4-1) Initial State of Inserting Disk Cartridge (FIG. 13) (4-2) State Before Opening Shutter of Disk Cartridge (FIG. 14) (4-3) State after shutter release (FIG. 15) (4-4) Initial state of loading of hard disk (FIG. 16) (4-5) State of loading of hard disk (FIG. 17) (4-6) Hard disk Click loading completion state (FIG. 18) (4-7) unloading state of the hard disk (Fig. 19)

[1] Configuration of Disk Cartridge (FIG. 12) As shown in FIG. 12, the disk cartridge 1 has a pair of upper halves 2a and lower halves 2b which are vertically stacked.
A hard disk (magnetic disk) HD showing a specific example of a disk-shaped information recording medium rotatably housed in a disk housing chamber 3 formed in the disk housing 2; Similarly, a shutter member 4 rotatably accommodated in the disk accommodating chamber 3 and a shutter spring 5 for constantly urging the shutter member 4 in the surface direction of the disk accommodating chamber 3 are provided. And upper and lower half 2
a and 2b are overlapped with each other on the opening side, and the contact surfaces thereof are welded or bonded with an adhesive or
The disk cartridge 1 is integrally formed by fastening between a and 2b with a fixing screw.

The disk housing 2 of the disk cartridge 1 is formed of a thin container having a substantially square planar shape.
A grip notch 2c that is gripped by a user to take out the disk cartridge 1 from the disk recording / reproducing apparatus is provided on both sides of the rear portion. The grip notch 2c also has a role of ensuring the operation of automatically removing the cartridge from the storage device by the cartridge changer device. The center of the radius of curvature is offset from the center line L in the insertion direction to one side in the front part of the disk housing 2 which is the insertion side of the disk recording / reproducing apparatus into the cartridge insertion slot. An arc portion 6 is formed. As a result, the length of one side surface 2d of the disk housing 2 is set shorter than the length of the other side surface 2e. The head insertion opening 7 which is a horizontally long opening extended in the horizontal direction by being chipped is opened.

The head insertion slot 7 has a disk housing 2
A magnetic head 8 as a read / write head for writing a new information signal to the information recording unit at the time of recording with respect to the hard disk HD accommodated therein, and reading / writing the information signal recorded at the information recording unit in advance at the time of reproduction. You. As shown in FIGS. 13 to 15, the head insertion opening 7 can be opened and closed by an arc-shaped shutter plate 4 a provided at the tip of a shutter member 4 housed in the disk housing chamber 3. The shutter member 4 has, in addition to the shutter plate 4a, a core hole opening / closing plate 4b that opens and closes a center core hole 9 formed substantially in the center of the lower half 2b. The plates 4a are integrally provided so as to intersect at right angles.

The base end of the shutter member 4, that is, the other end of the core hole opening / closing plate 4b, is rotatable about a fulcrum shaft 2f provided so as to be slightly deviated from the center of the rear portion of the lower half 2b toward the long side surface 2e. It is pivoted on. By rotating the shutter member 4 about the fulcrum shaft 2f, the shutter plate 4a
Moves along the inner surface of the offset arc portion 6, and
The core hole opening / closing plate 4b moves along the inner surface of the disk storage chamber 3. When the shutter member 4 is on the short side 2d side, the shutter plate 4a closes the head insertion opening 7 and the core hole opening / closing plate 4b closes the center core hole 9. On the other hand, when the shutter member 4 moves toward the long side surface 2e, the shutter plate 4a opens the head insertion opening 7 and the core hole opening / closing plate 4b opens the center core hole 9. Therefore, a shutter notch 4c that can completely open the center core hole 9 when the shutter is opened is provided in the core hole opening / closing plate 4b of the shutter member 4.

The shutter member 4 is constantly urged in a direction to close the head insertion opening 7 by a shutter spring 5 composed of a torsion coil spring. The shutter spring 5 has its coil portion loosely fitted to a support shaft 2g provided so as to be biased further toward the long side surface 2e than the fulcrum shaft 2f of the lower half 2b. A spring piece 5a protruding from one end of the coil portion of the shutter spring 5 is in contact with the inner surface of the lower half 2b, and a spring piece 5b protruding from the other end of the coil portion is provided on the core hole opening / closing plate 4.
b is locked by a spring receiving piece 4d provided near the base end. In order to secure the clearance between the upper half 2a and the lower half 2b of the head insertion portion and the suspensions 58a and 58b, and because of the mounting structure of the shutter member 4 urged by the shutter spring 5, particularly the shutter plate 4a, In the present embodiment, the thickness of the portion of the lower half 2b that contacts the shutter plate 4a and the peripheral portion thereof are reduced.

Further, the core hole opening / closing plate 4b of the shutter member 4
Is provided with an operation arm 4e that protrudes in an arc shape on the side opposite to the shutter notch 4c. This operation arm 4e
An operation claw 4f is integrally provided at the tip of the.
The operation claw 4f is provided with a step in consideration of the thickness of the hard disk HD, so that the center of the operation claw 4f is exposed to the outside from the joint surface of the upper and lower halves 2a, 2b. ing. Thus, the operating arm 4e of the shutter member 4 penetrates the notch 2i provided in the arc-shaped side wall 2h formed at the rear of the lower half 2b, and the operating claw 4f connected to the tip of the operating arm 4e. Is exposed in a guide groove 10 provided to extend in the front-rear direction on a long side surface 2e of the disk housing 2 from a notch 2j provided in a joining surface of the upper and lower halves 2a and 2b.

The guide groove 10 has a wide portion 10a which is wide in the thickness direction (the direction of superposition) set on the front side of the disk housing 2 and a width in the vertical direction which is set on the rear side of the disk housing 2. A narrow narrow portion 10b, an introducing portion 10c formed at the tip of the wide portion 10a and also wide and inclined inward, and set between a rear portion of the wide portion 10a and a front portion of the narrow portion 10b. Open / close operation unit 10d. In the opening / closing operation portion 10d of the guide groove 10, the wide portion 1
0a to the narrow portion 10b, the upper half 2
a and an inclined surface 10e are formed on each of the lower half 2b. The inclined surface 10e guides an operation piece of a shutter opening lever, which will be described later, to smoothly move the operation piece from the wide portion 10a to the narrow portion 10b. It has been made possible.

The depth T of the narrow portion 10b of the guide groove 10
b is formed sufficiently deeper than the depth Ta of the wide portion 10a (Tb> Ta), so that even when the shutter member 4 is completely opened, the operation claw 4f can move the guide groove 1f.
It does not protrude greatly from 0 outside. The side surface of the opening / closing operation portion 10d having such a step is formed by a part of the above-described arc-shaped side wall 2h, and the outer surface thereof is smoothly continued in an arc shape. This guide groove 1
The operation claw 4f of the shutter member 4 described above is located in the narrow portion 10b of 0, and only the tip of the operation claw 4f always projects into the guide groove 10 at all times.

The hard disk HD is formed of a disk-shaped disk-shaped recording member having upper and lower surfaces serving as signal recording surfaces according to a magnetic recording system.
Are integrally fixed. The center core 11 of the hard disk HD has a center core hole 9 formed in the lower half 2b.
When the center hole 9 is opened by the rotation of the core hole opening / closing plate 4b, the center hole 9 comes into contact with the turntable-integrated spindle motor 12 inserted from the center core hole 9. The above-described ring-shaped magnet is fitted and integrally provided on the rotating portion of the spindle motor 12, and the hard disk HD is chucked by the spindle motor 12 by the attraction force of the magnet and integrally rotated. Driven.

As shown in FIG. 13 and the like, an erroneous erasure prevention tab 13 for switching the presence or absence of a write-protection hole is provided on one side of the rear part of the disk cartridge 1. Further, positioning holes 14a and 14b for loading the disc cartridge 1 to a predetermined position of the disc recording / reproducing apparatus are provided near the erroneous erasure prevention tab 13 and near the shutter spring 5 located on the opposite side. Is provided.

Although not shown in FIG. 13 and the like, the core hole opening / closing plate 4b of the shutter member 4 is provided with one or more guide grooves extending in an arc around the fulcrum shaft 2f.
A guide pin provided on the lower half 2b is engaged with the guide groove. Then, the center pin 11 of the hard disk is received by the guide pin engaged with the guide groove, and the sliding loss between the shutter 4b and the center core 11 is reduced, so that the opening operation of the head insertion port 7 and the center core hole 9 is performed smoothly. Has been made.

The upper and lower halves 2a,
As the material of 2b, for example, a synthetic resin material such as polycarbonate PC is suitable, but other synthetic resins can also be used. In this embodiment, the shutter member 4 is made of polycarbonate PC as the material of the shutter member 4.
On the other hand, a stainless steel plate is used for the core hole opening / closing plate 4b, and a polycarbonate PC shutter plate 4a is formed in two colors at the tip of the stainless steel plate.
The shutter member 4 is integrally formed. However,
The entire shutter member 4 may be formed of a synthetic resin material such as polycarbonate PC, and the entire shutter member 4 may be formed of a metal material such as a stainless steel plate. Even in the case of two-color molding, other synthetic resin materials such as polyacetal POM having excellent slidability may be used in addition to polycarbonate PC.

[2] External Configuration of Disk Recording / Reproducing Apparatus (FIG. 2) The disk recording / reproducing apparatus of this embodiment is of a pop-up type in which a cartridge holder 16 in which the disk cartridge 1 is mounted moves up and down. It is shown in FIG. This disk recording / reproducing apparatus has a disk drive mechanism 30, which is a rotation drive mechanism to be described later, a shutter opening mechanism 40, which is a shutter opening means, an information recording / reproduction mechanism 50, and a disk loading mechanism 60. The mechanical chassis 17 and the mechanical chassis 17
The cartridge holder 16 attached to the inside thereof so as to be able to ascend and open and close the front cartridge insertion opening 18.
And the like.

The mechanical chassis 17 is formed of a rectangular housing having a shallow bottom and opened on the upper surface. Supports for supporting both ends of the rear portion of the cartridge holder 16 on the rear side inside the mechanical chassis 17 so that the cartridge holder 16 can be raised. Brackets 19 are mounted as a pair on the left and right. Bearing holes are provided at the rear portion of the support brackets 19, and each of the bearing holes has a pivoting fulcrum shaft 1 provided at both ends of the rear portion of the cartridge holder 16.
9a are rotatably fitted respectively.

The cartridge holder 16 is slightly smaller than the mechanical chassis 17 when viewed from above, and has a rectangular upper surface plate 16a.
And a side plate 16 continuous on both left and right sides of the top plate 16a.
b, 16c, and holding plates 16d, which are formed by bending the inner side plates 16b, 16c at appropriate widths continuously to the lower portions thereof.
16e, and a cartridge insertion port 18 is set at the front of a space surrounded by these. Therefore, the inside of the cartridge holder 16 is a space having a size corresponding to the size of the disk cartridge 1. The disk cartridge 1 is inserted into and removed from the cartridge insertion port 18, and the disk cartridge is loaded into the disk cartridge loading section.

Further, a part of each of the holding plates 16d, 16e is bent downward at a lower portion of the both side plates 16b, 16c of the cartridge holder 16 so that the shaft supporting pieces 16f, 1c are formed.
6 g are provided. These shaft support pieces 16f, 16
g, a holder reinforcing shaft 20 as a reinforcing member between the cartridge holding portions is provided.
0 are fixed to the shaft supporting pieces 16f, 16
g. Further, stopper portions 22a and 22b are provided at an intermediate portion in the front-rear direction of the cartridge holder 16 to prevent a part of the side plates 16b and 16c from being bent inward to prevent the disc cartridge 1 from being inserted beyond a predetermined amount. (See FIG. 15).

At the front of one side plate 16b of the cartridge holder 16, openings 23a and 23b are provided which extend in the front-rear direction at a predetermined distance in the front-rear direction. The holding plate 1 is provided at the rear of the shaft supporting piece 16g of the other side plate 16c of the cartridge holder 16.
6e is bent downward so that the support piece 16h
The support piece 16h is provided with an engaging pin 24 protruding inward. The engagement pin 24 forms a part of a lock mechanism of the cartridge holder 16 which will be described later.

Further, the upper plate 1 of the cartridge holder 16
Pressing plate springs 25 are attached to both front sides of 6a so as to correspond to above the holding plates 16d and 16e.
The presser plate spring 25 urges the inserted disk cartridge 1 toward the holding plates 16 d and 16 e to position the disk cartridge 1 relative to the cartridge holder 16 in the height direction. As the material of the cartridge holder 16, a metal sheet metal material such as an electrogalvanized steel plate or a stainless steel plate is preferable, and as the material of the mechanical chassis 17, a metal material such as an aluminum die cast or an aluminum plate is preferable. However, engineering plastics having high mechanical strength such as polycarbonate can also be used.

[3] Internal Configuration of Disk Recording / Reproducing Apparatus (3-1) Disk Driving Mechanism (FIG. 1) This disk recording / reproducing apparatus includes a disk driving mechanism 30 as shown in FIG. This disk drive mechanism 3
Reference numeral 0 denotes a turntable-integrated spindle motor 12 for chucking the hard disk HD of the disk cartridge 1 described above. The spindle motor 12 is placed upward at the front central portion of the mechanical chassis 17, and a screw portion passing through the flange portion 12 a is screwed into a screw hole of the mechanical chassis 17 by a plurality of mounting screws 31. It is fastened and fixed on the mechanical chassis 17.

The flange portion 1 of the spindle motor 12
A plurality of cartridge support pins 32 for supporting the vicinity of the center core hole 9 of the disk cartridge 1 are provided in 2a. The magnet is attached to the rotating part of the spindle motor 12 as described above.
The center core 11 is attracted by the magnet and the hard disk HD is chucked on the rotating part, so that the hard disk HD is rotated and driven by the spindle motor 12 in the disk housing 2.

(3-2) Shutter Opening Mechanism (FIGS. 2 and 3) The shutter opening mechanism 40 is used to open the head insertion opening 7 of the disk cartridge 1 mounted on the cartridge holder 16 by using the cartridge body as a trigger. And one side plate 16b of the cartridge holder 16.
It is arranged in. The shutter opening mechanism 40 includes a shutter opening lever 41 that is a balance arm member, and a coil spring 42 that is a specific example of an urging member that urges the shutter opening lever 41. The shutter opening lever 41 includes a lever main body 41a having a U-shaped cross section, an input piece 41b as a scanning end protruding from both sides of the lever main body 41 so as to be separated from each other in a lateral direction, and an operation piece 41c as an operation end. And a contact portion 41d protruding on the movement locus of the disk cartridge 1 is provided at the tip of the input piece 41b.

In order to attach the shutter opening lever 41 to the cartridge holder 16, front and rear openings 23 a, 23 b are formed in the side plate 16 b of the cartridge holder 16.
A pair of pin support pieces 43a and 43b are provided by bending a part between them up and down. A lever body 41a of the shutter opening lever 41 is interposed between the pin support pieces 43a and 43b, and the respective pin support pieces 43a and 43b are provided.
The shaft pin 44 is passed through the pin hole provided in the lever body 41a and the pin hole provided in the lever main body 41a, and both ends of the shaft pin 44 are caulked, whereby the shutter opening lever 41 swings horizontally to one side of the cartridge holder 16. It is movably supported.

In this state, the input piece 41b of the shutter opening lever 41 is connected to the opening 2 behind the cartridge holder 16.
The action piece 41c is opposed to the front opening 23a. A coil portion of a coil spring 42 is loosely fitted to a shaft pin 44 which supports the shutter opening lever 41 on the cartridge holder 16, and a spring piece 42 a continuous with one end of the coil portion contacts the side plate 16 b. The spring piece 42b connected to the other end of the coil portion is in contact with the lever body 41a. Due to the spring force of the coil spring 42, the input piece 41b of the shutter opening lever 41 is urged in a direction to enter the opening 23b, and as a reaction, the action piece 41c is urged in a direction to come out of the opening 23a.

In order to limit the amount of rotation of the shutter opening lever 41, an input piece 4 is provided on the inner surface of the lever body 41a.
An input-side stopper 41e for preventing 1b from entering the opening 23b by a predetermined amount or more, and an operating-side stopper 41f for preventing the operating piece 41c from entering the opening 23a by a predetermined amount or more are set. . The input piece 41b of the shutter opening lever 41 enters the wide portion 10a through the introduction portion 10c of the guide groove 10 of the disk cartridge 1, and the action piece 41c is moved to the operation portion 10d of the guide groove 10.
Through the narrow portion 10b.

The input piece 41 of the shutter opening lever 41
As the function of b, in addition to functioning as an input section for operating force,
Since the disk cartridge 1 is also required to have an appropriate elasticity while maintaining a certain degree of rigidity, the guide groove 1 is used in this example.
The contact portion 41d is formed so as to be wider in the width direction of 0, and the distal end portion is bent in the depth direction of the guide groove 10. On the other hand, the function of the action piece 41c of the shutter opening lever 41 is to mainly press the operation claw 4f. It is formed to have high rigidity.

Thus, the operation claw 4 of the shutter member 4 is provided in the narrow portion 10b of the guide groove 10 of the disc cartridge 1.
When the operating claw 4f is pressed by the action piece 41c of the shutter opening lever 41, the shutter member 4 is rotated against the spring force of the shutter spring 5 so that the head insertion port 7 The center core hole 9 is opened together.

(3-3) Information Recording / Reproducing Mechanism (FIGS. 1, 4, 9 to 11) The information recording / reproducing mechanism 50 is provided at the rear of the mechanical chassis 17 and serves as a rotation support member. A dog-leg type rotary actuator 51, a pair of upper and lower sliders 52a and 52b floatingly attached to the tip of the rotary actuator 51, an actuator support table 53 for rotatably supporting the rotary actuator 51, and the like. Have. The actuator support bearing 59 is provided for the mechanical chassis 17.
It is placed on the top and is fastened and fixed by fixing means such as mounting screws.

The rotation actuator 51 is rotatably supported on an actuator support 53 that is fastened and fixed to the mechanical chassis 17 by fixing means such as mounting screws, and is fixed to the rotation arm 55. Drive coil 56 and a pair of mount plates 57a and 57b,
A pair of suspensions 58a, 58b as elastic support members fixed to the mount plates 57a, 57b
Etc. are provided. The pivot arm 55 of the pivot actuator 51 is rotatably supported on the actuator support base 53 by a bearing 59 fitted and fixed at a middle part in the horizontal direction, and has a bifurcated portion 55a formed on one side thereof. A fan-shaped drive coil 56 around which a copper wire is wound is engaged and held.

As shown in FIG. 7, steps are provided on the upper and lower surfaces of the distal end of the rotating arm 55, and the base ends of the mount plates 57a and 57b are fitted to these steps.
A pair of mount plates 57a and 57b are opposed to each other with a predetermined gap in the vertical direction by fixing the base end by spot welding or caulking or fixing means such as an adhesive. A pair of mounting plates 57a, 5
7b is formed in an inverted L-shape, and the suspension 5 is provided on the inner surfaces of the distal ends of these mount plates 57a and 57b.
The bases of the bases 8a and 58b are fixed by fixing means such as spot welding or caulking or an adhesive. It is communicated in an open manner over almost the entire circumference. Thus, the rotation actuator 51 is connected to the rotation arm 5.
5, the entire shape is substantially L-shaped in plan view by the mount plates 57a and 57b and the suspensions 58a and 58b;
That is, it is formed in a dog leg shape.

A pair of suspensions 58a, 58b
It is made of a leaf spring-like member having elasticity, and the opening 60 is provided at the center on the base end side to reduce the rigidity, so that the base end has a low rigidity. In this manner, the sliders 52a and 52b attached to the distal end portions can be easily moved up and down by lowering the rigidity of the proximal end portions of the suspensions 58a and 58b to impart great flexibility to the distal end side. It has been made possible. Further, both side edge portions of each suspension 58a and 58b are bent to the inner surface side to form ribs 58a _1, 58a ₂ and 58b _1, 58b _2, the ribs 58a ₁ and 58b ₁ of the inner deletes the front end portion I have.

Further, in the middle of each of the suspensions 58a and 58b, a convex portion 61 projecting inward in a hemispherical shape is provided.
a, 61b are provided. This suspension 58
A ramp, which will be described later, is inserted between the convex portions 61a, 61b of the a, 58b during loading and unloading, whereby the front ends of the two suspensions 58a, 58b are spread so as to be separated in the vertical direction, and the upper and lower sliders are extended. The upper and lower surfaces 52a and 52b of the hard disk HD do not come into contact with each other.

As the shape of the pair of sliders 52a and 52b, for example, those having a structure as shown in FIGS. 9 to 11 can be used. FIG. 9 shows a transverse pressure contour type slider (hereinafter, referred to as "TPC type slider") 52A as an intermediate flying type slider. In this TPC type slider 52A, an air flow groove 62 extending in the front-rear direction is formed in the center of the back surface of the block-shaped slider body, and ridges 63 located on both sides thereof face the upper and lower surfaces of the hard disk HD. Disk opposing surface 63a, and the disk opposing surface 63a
Flow groove step 63 formed on both sides of
b, 63c, and a tapered surface 63d formed on the rotation direction front side of the ridge 63.

According to the TPC type slider 52A, a constant representing how the parallelism between the disk facing surface of the slider floating above the surface of the hard disk HD and the disk surface varies inside and outside the disk radial direction.・ Flying height performance (hereinafter referred to as “CFH performance”) can be improved, speed dependency is low, and substantially flat performance can be obtained both inside and outside in the disk radial direction. Thus, the slider can be floated from the disk surface with good stability.

FIG. 10 shows a catamaran type slider 52B. This catamaran type slider 52B is
It forms the basic form of the TPC type slider 52A.
Has a structure from which is removed. Although the catamaran type slider 52B has a slightly lower CFH performance than the TPC type slider 52A, it can sufficiently withstand actual use.

FIG. 11 shows a negative pressure type slider 52C. This negative pressure type slider 52C generates a negative pressure on the back surface of the slider by the air flow groove 64,
This negative pressure partially cancels the positive pressure generated on the disk facing surface 63 to cause the slider to fly at a low height from the disk surface. This negative pressure type slider 52
According to C, the CFH performance is as good as the TPC type slider 52A, and a flat performance can be obtained.
The slider can be floated from the disk surface with good stability.

The sliders 52A-52 having such a configuration
A magnetic head 8 for both recording and reproduction is provided at the rear end of 52C, that is, at the rear side in the disk rotation direction. In each of the embodiments, the sliders 52A to 52C are set such that the center line X of the air flow grooves 62 and 64 and the center line Y of the suspensions 58a and 58b intersect at a predetermined intersection angle θ. .

Generally, in the conventional slider, the extending direction of the air flow groove is set in parallel with the extending direction of the suspension. In this embodiment, however, the intersection angle θ is about 70 °.
Is set to Thus, the suspension 58
By attaching the sliders 52a and 52b at a predetermined intersection angle θ with respect to the extending direction of the sliders a and 58b, the vent angle of the sliders 52a and 52b can be reduced. The intersection angle θ is not limited to 70 ° as in the present embodiment, but an appropriate angle can be set as needed.

As shown in FIG. 8, concave portions 64a and 64b are provided in the middle of the rotating arm 55 by stealing the inside of the upper and lower surfaces.
The weight of the rotating arm 55 is reduced by 4a and 64b. On the other hand, a concave portion 6
An FPC (Flexible Printed Wiring Board) 65 lined with a reinforcing plate of aluminum or the like is provided so as to close the opening of the FPC 4a. The rigidity of the moving arm 55 is increased to improve the strength.

This is to increase the rigidity of the rotating arm 55 by reinforcing the strength of the rotating arm 55 with an FPC (flexible printed wiring board) 65 struck with a reinforcing plate such as aluminum. The FPC 65 with a reinforcing plate includes a base plate 65a which is a backing reinforcing plate of aluminum or the like, and an FPC adhered to one side of the base plate 65a. In this embodiment, the strength of the rotating arm 55 is increased by adding a reinforcing plate-attached FPC 65 and making the cross-sectional shape of the rotating arm 55 into a box shape. Accordingly, while reducing the weight of the rotating arm 55,
5 can be increased.

The FPC 65 is connected to a connector 68 via a flexible cable section 67. The connector 68 is mounted on a wiring board 35 arranged on the side of the spindle motor 12, and the wiring board 35 is fixed on the mechanical chassis 17. This wiring board 35
, An electronic circuit is formed by printing with a conductor, and an amplifier 36 and other electronic components are electrically connected to the electronic circuit to form a control device.

Thus, the rotation actuator 51
Is bent substantially 90 degrees at the mount plate 57a, 57b, as shown in FIGS.
It is substantially L-shaped, so-called dog leg. Due to such a shape, the rotary actuator 51 of the present example is called a dog leg type.

A flat magnet 37 curved and formed in an arc shape so as to face the drive coil 56 from below is mounted and fixed on the actuator support base 53 that rotatably supports the rotary actuator 51. I have. This magnet 37 has its NS poles magnetized in the plane direction, and adjusts the magnitude of the magnetic force acting between the drive coil 56 and the magnet 72 so that the rotation of the rotary actuator 51 can be controlled within a predetermined area. The moving position is automatically controlled. Outside the automatic control area, the disk gear is rotated by a cam gear of the disk loading mechanism 70 described below, and is locked at a predetermined rotation position.

In this embodiment, a magnesium alloy is used as the material of the rotating arm 55 and the mounting plate 57 is used.
Although stainless steel plates are used as the materials of the a and 57b and the suspensions 58a and 58b, the suspensions 58a and 58b can be formed of engineering plastic or the like having high mechanical strength such as polycarbonate. Further, the rotating arm 5
5 and the mount plates 57a, 57b may be integrally formed of the same material.

(3-4) Disk Loading Mechanism (FIGS. 1 to 8) This disk recording / reproducing apparatus has a disk driving mechanism corresponding to the disk driving mechanism 30, shutter opening mechanism 40 and information recording / reproducing mechanism 50 described above. A disk loading mechanism 70 for loading and unloading the hard disk HD with respect to the mechanism 30 is provided. The disk loading mechanism 70 is provided on the mechanical chassis 17 similarly to the disk drive mechanism 30.

The disc loading mechanism 70 includes a drive motor 71, a worm 72, a worm wheel 73, a cam gear 74, a ramp member 75, and an eject lever 76.
, A holder lock member 77, a pop-up spring 78, a pop-up suppressing plate 79, a positioning pin 80, a cartridge support pin 81, and the like. The drive motor 71 of the disc loading mechanism 70 is
, And a worm 72 is fixed to the rotation shaft thereof. The worm 72 is meshed with a worm wheel 73 rotatably supported by a support shaft 73a erected on the mechanical chassis 17.

The worm wheel 73 is integrally provided with an input gear (not shown), and the input gear is engaged with an intermediate gear 82a. This intermediate gear 82
a is provided integrally with an output gear 82b,
These are rotatably supported by a support shaft 82c erected on the mechanical chassis 17. The output gear 82b is meshed with a gear portion 74a of a cam gear 74 rotatably supported by a cam shaft 83 also provided upright on the mechanical chassis 17.

A cam gear 74, which is a rotary cam mechanism as an operation mode switching means, is formed on a cam peripheral surface 74b having a circular outer peripheral surface formed on one surface side of a gear portion 74a and on the other surface side of the gear portion 74a. And a cam groove 74c. A part of the cam peripheral surface 74b is cut away and depressed inward to provide a cam relief part 74d, and by providing the cam relief part 74d, one end of the cam peripheral surface 74b protrudes in an arc shape in the circumferential direction. The cam action end 74e is formed. A cam projection 55a provided so as to protrude downward below the rotating arm 55 of the rotating actuator 51 is slidably or abutted on the cam peripheral surface 74b and the cam working end 74e.

The cam gear 74 causes the rotation operation of the rotary actuator 51, the movement of the ramp 91 for guiding the magnetic head 8 on the surface of the disk-shaped recording medium, and the ejection lever 76 for ejecting the disk cartridge 1 as described later. Operation is switched.

Thus, the state in which the cam projection 55a of the rotary actuator 51 is in sliding contact with the cam peripheral surface 74b of the cam gear 74 is in an arm locked state in which the rotary actuator 51 is completely projected out of the disk cartridge 1 ( FIG. 16) or an unloading state in which the disc cartridge 1 is discharged out of the apparatus (see FIG. 19).
It is. A cam gear 74 is provided on the inner surface of the cam projection 55a.
The state in which the cam working end 74e is in contact is a state in which the magnetic head 8 is being loaded while the magnetic head 8 is being inserted into the disk cartridge 1 (see FIG. 17). The state in which the cam projection 55a is within the cam escape portion 74d of the cam gear 74 is a state where loading is completed (see FIG. 18). Only in the loading completed state, the rotation actuator 51 can automatically control the rotation position by the drive coil 56 and the magnet 37 described above.

The cam groove 74c of the cam gear 74 is formed so as to correspond to the cam peripheral surface 74b and the cam relief 74d. That is, the cam groove 74c is used only when ejecting the disk cartridge 1 out of the apparatus. Specifically, the cartridge holder 16 is moved to the mechanical chassis 17 through the operation of the eject lever 76.
The operation of releasing the holder lock mechanism that locks the disk cartridge 1 and the operation of ejecting the disk cartridge 1 from the cartridge holder 16 are executed.

For this reason, the cam groove 74c is
The opposite side of 4d extends in the circumferential direction on the outer peripheral side close to the cam peripheral surface 74b, enters the radial inside from a position rotated approximately 90 °, and enters the cam shaft 83 at a position rotated approximately 180 °. It is formed so as to come closest. A cam pin 84 of an eject lever 76 as an eject arm member is slidably engaged with the cam groove 74c.

The eject lever 76 is rotatably supported by a fulcrum shaft 85 erected on the mechanical chassis 17 at a middle portion in the longitudinal direction. The above-described cam pin 84 is attached to one end of the eject lever 76 in the longitudinal direction, and is engaged with the cam groove 74c of the cam gear 74 from below, as shown in FIGS. Further, a pressing portion 76a for rotating the holder lock member 77 of the holder lock mechanism is provided at the other end in the longitudinal direction of the eject lever 76.

Further, the fulcrum shaft 8 of the eject lever 76
A base end of an eject arm 86 is provided continuously and integrally in the vicinity of 5, and a cartridge pressing pin 87 is integrally provided at a distal end of the eject arm 86. Eject lever 76 having such a configuration
However, as shown in FIG. 16 and the like, the cam pin 84 side of the eject lever 76 extends rearward, the pressing portion 76a side extends diagonally forward, and the eject arm 86 extends laterally. It is arranged.

The pressing portion 76a of the eject lever 76
The holder lock mechanism provided so as to oppose the coil spring 8 for urging the holder lock member 77 described above to rotate.
8 is provided. As a material of the holder lock member 77,
In this example, a stainless steel plate is used, but it can be formed of engineering plastic or the like having high mechanical strength such as polyacetal.

As shown in FIG. 1 and the like, the holder lock member 77 is rotatably supported by a fulcrum shaft 89 erected on the mechanical chassis 17. This holder lock member 77 has a locking claw 77 provided with a claw point facing rearward.
a, a pressure receiving portion 77b abutting against the pressing portion 76a of the eject lever 76, and a spring receiving piece 77c to which one end of the coil spring 88 is locked. Further, the holder lock member 77 is provided with a plurality of arc grooves 77d extending in an arc shape in the circumferential direction around the fulcrum shaft 89,
A plurality of regulating pins 89a erected on the mechanical chassis 17 are slidably engaged with the respective arc grooves 77d.

The other end of the coil spring 88 is locked to one of the restricting pins 89a, and the holder lock member 77 moves the pressure receiving portion 77b closer to the pressing portion 76a by the spring force of the coil spring 88. Being energized. The amount of rotation of the holder lock member 77 is regulated to a predetermined position by a regulation pin 89a engaged with the arc groove 77d. Locking claw 77a of this holder lock member 77
Is engaged with the engagement pin 24 in a state where the cartridge holder 16 is inserted into the mechanical chassis 17, whereby the cartridge holder 16 is locked.

Below the cartridge holder 16,
A pop-up spring 78 made of a coil spring, which is a specific example of the urging member, is provided. The pop-up spring 78 is compressed when the cartridge holder 16 is mounted on the mechanical chassis 17 and is tilted up and down by releasing the holder lock mechanism. As shown in FIG. The front side is lifted. The amount by which the cartridge holder 16 is lifted is determined by the pop-up suppressing plate 7 serving as the rising-up restricting member.
9 As the pop-up spring 78, other than this example, a spring material such as a leaf spring can be used, and a rubber-like elastic body such as synthetic rubber can also be used.

The pop-up suppressing plate 79 has a J-shaped vertical cross section, and a bearing piece 79a is provided on the upper side thereof so as to be parallel to the cross-sectional direction. A shaft pin 79b is fixed to the bearing piece 79a of the pop-up suppressing plate 79, and the shaft pin 79b
It is rotatably supported at zero. This support bracket 9
Reference numeral 0 is fixed to the mechanical chassis 17 by fixing means such as mounting screws.
Is attached to the mechanical chassis 17 via a support bracket 90 so as to be able to be raised and lowered in the vertical direction. As shown in FIG. 3, the pop-up suppressing plate 79 has a hook portion on the distal end side slidably engaged with the small-diameter portion 20a of the holder reinforcing shaft 20 described above. (Upward movement) is restricted.

A ramp 91 for temporarily widening the interval between the pair of sliders 52a and 52b is provided near the distal end of the rotary actuator 51 at the back of the mechanical chassis 17. The ramp 91 includes a ramp arm 9 inserted between a pair of sliders 52a and 52b.
2 and pressing the rear side of the rotating arm 55 to move the slider 52
a, and a pressing portion 93 for moving the cartridge 52a to the cartridge side. As a material of the lamp 91, for example, a synthetic resin material such as polyacetal (POM) is suitable, but other synthetic resin materials can also be used.

A pair of parallel guide shafts 94a and 94b are slidably penetrated through the lamp 91. Both front and rear end portions of the pair of linear guide shafts 94a and 94b are sandwiched from above and below by a pair of bearing blocks 96 and shaft holding pieces 96a from front and rear, thereby being fixed to the mechanical chassis 17 and supported at both ends. A ramp arm 92 is arranged above the middle of these linear guide shafts 94a and 94b.

The ramp arm 92 is set on the movement trajectory of the projections 61a, 61b provided on the upper and lower suspensions 58a, 58b of the rotary actuator 51. A pair of upper and lower sliders 52a, 52b are located outside the ramp arm 92. Is configured to move. As shown in FIG. 7, inclined surfaces 92a are provided on both upper and lower surfaces of the distal end portion of the lamp arm 92 so that the convex portions 61a and 61b can easily climb up.

A coil spring 95 for urging the ramp 91 toward the spindle motor 12 has one end locked by a spring locking piece 91a provided on the ramp 91 and the other end fixed to the mechanical chassis 17 by a spring receiver. The pin 97 is locked. The forward movement of the coil spring 95 due to the spring force is restricted by a stopper pin 98 disposed between the pair of linear guide shafts 94a and 94b and fixed to the mechanical chassis 17. The amount of movement of the rotation actuator 51 in the direction away from the spindle motor 12 is limited by a stopper shaft 69 provided on the back side and fixed to the mechanical chassis 17.

Further, a pair of positioning pins 80 are provided on both sides of the front of the mechanical chassis 17. The positioning pins 80 are provided with positioning holes 1 of the disc cartridge 1.
4a and 14b are fitted respectively, thereby positioning the disk cartridge 1 in the plane direction. Also, two positioning pins 80 and two cartridge support pins 81 are erected on the mechanical chassis 17 so as to support the four corners of the disk cartridge 1, thereby positioning the disk cartridge 1 in the height direction. It has been done.

The disk drive mechanism 30, the shutter opening mechanism 40, the information recording / reproducing mechanism 50, and the disk loading mechanism 70 configured as described above are combined. That is, as shown in FIG. 2, the cartridge holder 16 is fitted into the mechanical chassis 17, and the left and right support brackets 19 that rotatably support the rear end of the cartridge holder 16 are screwed at predetermined positions. Thereby, the mechanical chassis 1
Above the spindle motor 12 fixed to 7, the cartridge holder of the cartridge holder 16 corresponds. As described above, the disk recording / reproducing apparatus of the present embodiment is configured.

[4] Operation of Disk Recording / Reproducing Apparatus Next, the operation of the disk recording / reproducing apparatus configured as described above will be described.

(4-1) Initial state of insertion of the disk cartridge As shown in FIG. 2, when the front part of the cartridge holder 16 pops up, the cartridge insertion opening 18 is opened, and the disk cartridge 1 can be inserted. .

In this state, as shown in FIG. 13, the disc cartridge 1 is pushed into the cartridge insertion opening 18 from the offset arc portion 6 side. At this time, the shutter opening lever 41 of the shutter opening mechanism 40 provided on the side surface of the cartridge holder 16 causes the tip of the input piece 41b to largely enter the opening 23b due to the spring force of the coil spring 42, and acts as a reaction. The piece 41c enters the opening 23a slightly. The input piece 41 b of the shutter opening lever 41 is located forward of the movement locus of the guide groove 10 provided on the side surface of the cartridge holder 16.
The contact portion 41d provided at the tip of the is located.

(4-2) State before the Disc Cartridge is Opened with the Shutter Next, as shown in FIG. 14, when the disc cartridge 1 is pushed and inserted deeply, the shutter opening lever 41 which is largely inserted into the cartridge holder 16 abuts. Part 4
1d comes into contact with the introduction portion 10c of the guide groove 10, and is pressed by the inclined surface of the introduction portion 10c, so that the shutter opening lever 41 is pressed.
Is rotated clockwise in FIG. 4 against the urging force of the coil spring 42. Thereby, the contact portion 41d of the shutter opening lever 41 enters the wide portion 10a of the guide groove 10. At the same time, the action piece 41c of the shutter opening lever 41 enters the operation portion 10d of the guide groove 10. The action piece 41c is guided by the upper and lower inclined surfaces 10e and guided to the narrow portion 10b.
Abuts the operation claw 4f of the shutter member 4 located on the front side of.

(4-3) State after the Disc Cartridge is Opened Further, as shown in FIG. 15, when the disc cartridge 1 is further pressed and inserted to a predetermined position, the movement of the disc cartridge 1 The hard disk HD, which is limited by the stopper pieces 22a and 22b and is accommodated in the disk accommodation chamber 3, corresponds to the upper part of the spindle motor 12 of the disk drive mechanism 30.

At this time, when the operating claw 4f of the shutter member 4 is pushed by the action piece 41c of the shutter opening lever 41 of the shutter opening mechanism 40 and moves to the rear end of the narrow portion 10b of the guide groove 10, the shutter member 4 Is rotated clockwise in FIG. 15 about the fulcrum shaft 2f. Thereby, the shutter plate 4a of the shutter member 4 and the core opening / closing plate 4
b moves in the same direction.
Insertion opening 7 and core opening / closing plate 4 closed by
The center core hole 9 closed by b is opened. Thus, the operation of inserting the disk cartridge 1 into the cartridge holder 16 is completed.

(4-4) Initial Loading State of Hard Disk Next, the front portion of the cartridge holder 16 whose front side protrudes from the mechanical chassis 17 in the state shown in FIG. And press. Thereby, the cartridge holder 16 is moved to the mechanical chassis 17.
And the disk housing 2 of the disk cartridge 1 is placed on the two support pins for the cartridge positioning pins and the two cartridge support pins 81 of the mechanical chassis 17.

As a result, the four corners of the disc cartridge 1 are supported from below by the four cartridge support pins 80 and 81, whereby positioning in the height direction is performed. At the same time, two positioning pins 80 of the mechanical chassis 17 are engaged with a pair of left and right positioning holes 14a and 14b of the disc cartridge 1, and the positioning pins 80
The backlash in the surface direction of the disk cartridge 1 is absorbed by the conical portion 80a, thereby positioning the disk cartridge 1 in the surface direction.

At this time, the center core 11 of the hard disk HD housed in the disk cartridge 1 is attracted by the magnet of the spindle motor 12. As a result, the hard disk HD is
The hard disk HD is integrally rotated by driving the spindle motor 12.

As shown in FIG. 16, when the cartridge holder 16 is pushed into the mechanical chassis 17, the cartridge holder 16 is operated by an operation switch provided in conjunction with the pushing operation, or is manually operated thereafter. By operating the operation start switch, the drive motor 71 is rotated. When the drive motor 71 is started, the rotational force of the worm 72 fixed to the rotation shaft is transmitted from the gear portion 74a to the cam gear 74 via the gear 73a, the intermediate gear 82a, and the output gear 82b from the worm wheel 73 meshing with the worm 72. Is transmitted.

At this time, the entire rotary actuator 51 of the information recording / reproducing mechanism 50 is pushed out of the disc cartridge 1 by the action of the cam gear 74,
The upper and lower sliders 52a, 5a attached to the tip of the rotary actuator 51 which is bent like a dog leg at the mount plates 57a, 57b.
Reference numeral 2b corresponds to the outside of the head insertion opening 7 opened by the retreating operation of the shutter plate 4a.

That is, the outer end of the cam projection 55b provided on the rotation arm 55 of the rotation actuator 51 is connected to the cam gear 74.
Since the stopper shaft 69 is located outside the rotating arm 55 while being in contact with the cam peripheral surface 74b of the
1 is locked. Further, the ramp 91 is pulled toward the spindle motor 12 by the spring force of the coil spring 95, and the ramp arm 92 is moved upward and downward by the suspension 58.
a, 58b, the projections 61a, 61b of the suspensions 58a, 58b as shown in FIG.
By 1b, the sliders 52a and 52b are spread in a direction away from each other. Since the lamp 91 is in contact with the stopper pin 98, the movement of the lamp 91 to the front side is prevented.

Further, the cam pin 84 engaged with the cam groove 74c of the cam gear 74 is located at the outermost periphery of the cam groove 74c. Therefore, the eject lever 76 having the cam pin 84 at the tip of one arm is in a posture as shown in FIG. 16, and the pressing portion 7 provided at the other tip.
6a is separated from the pressure receiving portion 77b of the holder lock member 77 of the holder lock mechanism. The cartridge pressing pin 87 provided at the end of the eject arm 86
It is located behind the disk cartridge 1.

(4-5) State during Loading of Hard Disk As shown in FIG. 17, when the cam gear 74 is slightly rotated clockwise by the drive of the drive motor 71, the rotation actuator 51 Power is ramp 91
Of the coil actuator 95, a biasing force in the counterclockwise direction acts on the rotary actuator 51. As a result, the cam projection 55b of the rotating arm 55 is
The rotation actuator 51 is rotated counterclockwise because it goes around the cam action end 74e provided at one end of 4b and enters the cam escape portion 74d.

As a result, the upper and lower suspensions 58a and 58b provided at the tip of the dog leg type rotary actuator 51 at the turning side enter the head insertion opening 7 of the disk cartridge 1, and the upper and lower suspensions attached to the tip thereof. Sliders 52a and 52b approach the outer periphery of the hard disk HD. At this time, since the cam pin 84 of the eject lever 76 is located at the outermost periphery of the cam groove 74c of the cam gear 74, the postures of the eject lever 76 and the eject arm 86 do not change.

(4-6) Loading Complete State of Hard Disk The rotation of the cam gear 74 causes the cam projection 55b of the rotation arm 55 to completely enter the cam escape portion 74d of the cam gear 74 as shown in FIG. While the rotation control of the rotation actuator 51 by the cam gear 74 is released, the automatic control by the voice coil motor including the drive coil 56 and the magnet 37 is started. Thus, the loading of the hard disk HD is completed, and the upper slider 52a faces the upper surface of the hard disk HD, and the lower slider 52b faces the lower surface.

As a result, the upper and lower sliders 52a, 52a, 5a are driven by the aerodynamic effect of the rotation of the hard disk HD.
2b is slightly lifted from the surface of the hard disk HD, and the sliders 52a and 52b can move in the radial direction of the hard disk HD in the floating state. As a result, the magnetic head 8 provided on each of the sliders 52a and 52b moves on the information recording surface of the hard disk HD, and the magnetic head 8 reads out an information signal recorded in advance on the information recording surface to read the information. Reproduction is performed, or recording of information for newly writing an information signal on the information recording surface is performed.

In this case, the rotary actuator 51 of this embodiment is of a dog-leg type, and the suspensions 58a, 58b and the mount plate 57 on the tip side are provided.
Since a and 57b enter and exit in a direction substantially perpendicular to the head insertion port 7, the width of the head insertion port 7 can be minimized. Therefore, it is possible to reliably prevent the intrusion of dust or effectively suppress the intrusion by minimizing the size of the head insertion opening 7 into which the dust that may possibly enter the disc cartridge 1 is likely to enter. it can. Since the disk cartridge 1 has a structure in which the offset arc portion 6 is provided on the tip end side, the space in the mechanical chassis 17 can be more effectively used than in a conventional rectangular disk cartridge.

(4-7) Unloading state of hard disk (when ejecting cartridge) When a command to eject the cartridge is given to the control device by operating the eject operation button (not shown),
The drive motor 71 is driven to rotate in the reverse direction, and the cam gear 74
Starts rotating in the opposite direction to that during disk loading.

As a result, as shown in FIG. 19, when the cam gear 74 is rotated counterclockwise, the cam gear 7 is rotated.
4 comes into contact with the cam projection 55b of the rotating arm 55 in the counterclockwise direction.
Is rotated clockwise about the rotation shaft 54. As a result, the cam projection 55b is moved to the cam peripheral surface 7 of the cam gear 74.
4b, the rotary actuator 51 is moved to the position shown in FIG.
The posture changes to the initial posture indicated by 6. At the same time, the rotation of the rotation actuator 51 in the counterclockwise direction causes the lamp 9 to rotate.
Since the first pressing portion 93 is pressed to the rear side, the lamp 91 is pressed.
Moves backward to the rear side against the urging force of the coil spring 95, and is locked in the unloading state.

At this time, since the cam pin 84 of the eject lever 76 moves from the outermost peripheral portion to the innermost peripheral portion of the cam groove 74c of the cam gear 74, the eject lever 76 is rotated clockwise about the fulcrum shaft 85. You. Thereby, on the one hand, the pressing portion 76a of the eject lever 76 is pressed by the pressure receiving portion 77 of the holder lock member 77 of the holder lock mechanism.
b, and rotates the holder lock member 77 counterclockwise against the spring force of the coil spring 88.

As a result, the locking claw 77a of the holder lock member 77 is disengaged from the engaging pin 24 of the cartridge holder 16, and the locked state in which the cartridge holder 16 is horizontally held with respect to the mechanical chassis 17 is released. As a result, while the front side of the cartridge holder 16 is lifted by the spring force of the pop-up spring 78, the amount of the lift is limited by the pop-up suppression in which the front end side is engaged with the small diameter portion 20 a of the holder reinforcing shaft 20 provided on the cartridge holder 16. The state is limited by the plate 79 and the state as shown in FIG. 2 is restored.

At the same time, when the eject arm 86 rotates in the same direction in conjunction with the eject lever 76, the cartridge pressing pin 87 provided at the tip thereof comes into contact with the offset arc portion 6 of the disk cartridge 1 from behind. . Then, the disc cartridge 1 urged toward the holding plates 16 d and 16 e of the cartridge holder 16 by the pair of left and right holding plate springs 25 is pushed forward by the pressing force of the eject arm 86. As a result, as shown in FIG. 19, the grip notch 2c side of the disk cartridge 1 projects from the cartridge insertion port 18 by a predetermined amount. Therefore, the disk cartridge 1 can be easily taken out of the cartridge holder 16 by grasping the protrusion and pulling it out.

As described above, the present invention is not limited to the above embodiment. For example, in the above embodiment, the recording and / or reproduction of information is performed on the upper and lower surfaces of the hard disk by the upper and lower magnetic heads. Although the device for performing the information has been described, the present invention can be applied to a device for recording and / or reproducing information only on one of the upper and lower surfaces of the hard disk. Further, in the above-described embodiment, an example is described in which the present invention is applied to a pop-up type recording / reproducing apparatus capable of reproducing information prerecorded on the hard disk HD and recording new information. The present invention can be applied not only to a slot-in type disk recording / reproducing apparatus having a slot but also to a disk apparatus capable of performing only one of recording and reproducing of information. in this way,
The invention is not limited to the embodiments described above,
Various changes can be made without departing from the spirit of the invention.

[0122]

As described above, according to the present invention, in the disk storage medium, the ramp for guiding the movement of the read / write head onto the surface of the disk-shaped storage medium in the disk cartridge is provided from the outside of the disk cartridge loading section. After loading the cartridge, it is configured to be moved and inserted into the disk cartridge.When loading and discharging the disk cartridge, by moving the lamp to the outside of the disk cartridge loading section, it does not interfere with the disk cartridge, The loading and unloading of the disk cartridge into and from the loading section can be performed from above by a so-called pop-up method, and the spindle motor that rotates and drives the information recording medium stored in the disk cartridge is mounted on the bottom of the loading section without having a lifting mechanism Can be fixed Etc., it increases the flexibility of each part of the design, in particular can be simplified the structure of the spindle motor portion and the chassis, the effect of such costs can be reduced.

According to the present invention, the ramp is moved and inserted and fixed so as to be located outside the outer edge of the disk in the disk cartridge. As a result, the disk storage device can be formed as thin as not to impair the required mechanical strength, and the disk storage device can be made thinner.

The rotary actuator uses a substantially L-shaped arm, and the distance from the sliding contact portion with the ramp to the rotation center of the rotary actuator is determined by the distance from the rotation center to the read / write head. The shortening allows the read / write head to be rotated safely and reliably without interfering with the lamp, and the elastic support of the rotary actuator is slidably contacted with the lamp at any one point, so that it is twisted. Is prevented, the head can be stably supported, the sliding contact resistance is small, and the head can be smoothly rotated, so that recording and / or reproduction is reliably performed and reliability is improved.

Further, since the elastic support member is slidably supported without forming an extension, it is not necessary to increase the area of the disk cartridge, and the elastic support member is flush with the slidable portion. Since the ribs can be bent on the side, that is, the side facing the ramp, the ribs can be thinned, and the disk storage device and the disc cartridge can be reduced in size and thickness in conjunction with the aforementioned ramps. It has effects such as being possible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a disk recording / reproducing apparatus according to the present invention, showing a disk driving mechanism, an information recording / reproducing mechanism, and a disk loading mechanism housed in a mechanical chassis.

FIG. 2 is a perspective view of a state in which a mechanical chassis and a cartridge holder of the disk recording / reproducing apparatus of the present invention are combined.

FIG. 3 is an exploded perspective view showing a main part of a cartridge holder of the disk recording / reproducing apparatus shown in FIG. 2 in an enlarged manner.

FIG. 4 is an exploded perspective view showing an enlarged main part of the internal structure of the mechanical chassis shown in FIG. 1;

FIG. 5 is an explanatory diagram showing a main part of a disc loading mechanism of the disc recording / reproducing apparatus shown in FIG. 1 and showing a relationship between a cam gear and a rotating arm.

FIG. 6 is an explanatory diagram showing a main part of a disc loading mechanism of the disc recording / reproducing apparatus shown in FIG. 1 and showing a relationship between a cam gear and a cam pin.

FIG. 7 is an explanatory diagram showing a main part of an information recording / reproducing mechanism of the disk recording / reproducing device shown in FIG. 1, and showing a relationship between a rotary actuator and a ramp.

8 is a cross-sectional view of a pivot arm, showing a main part of an information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 9 is a perspective view showing a first embodiment of a slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 10 is a perspective view showing a second embodiment of the slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 11 is a perspective view showing a third embodiment of the slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 12 is a perspective view showing a part of a disk cartridge of the disk recording and reproducing apparatus shown in FIG.

13 is a plan view showing an initial state of insertion of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1;

14 is a plan view showing a state before a shutter of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1 is opened.

15 is a plan view showing a state after a shutter of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1 is opened.

FIG. 16 is a plan view showing an initial loading state of a hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

17 is a plan view showing a state in which the hard disk of the disk recording and reproducing apparatus shown in FIG. 1 is being loaded.

FIG. 18 is a plan view showing a completed loading state of a hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

19 is a plan view showing an unloaded state of the hard disk of the disk recording / reproducing apparatus shown in FIG.

FIG. 20 is a perspective view showing an example of a conventional disk recording / reproducing apparatus.

FIG. 21 is a plan view showing a state in which a disk cartridge is inserted into an apparatus main body of a conventional disk recording / reproducing apparatus.

FIG. 22 is an exploded perspective view showing a conventional disk cartridge.

[Description of Signs] 1 disk cartridge, 4 shutter member, 4
a shutter plate, 4b core hole opening / closing plate, 4f operation claw, 5 shutter spring, 6 offset arc portion,
7 head insertion slot, 8 magnetic head, 10 guide groove, 12 spindle motor, 16 cartridge holder, 17 mechanical chassis, 18 cartridge insertion slot, 30 disk drive mechanism, 40 shutter opening mechanism, 41 shutter opening lever, 50 information recording / reproducing mechanism 51 rotating actuator, 52
a, 52b slider, 55 rotating arm, 57
a, 57b mount plate, 58a, 58b suspension, 70 disc loading mechanism,
74 cam gear, 76 eject lever, 77 holder lock member, 84 cam pin, 86 eject arm, 91 lamp, 92 lamp arm, HD
Hard disk (disk-shaped recording medium)

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 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuo Takahashi, 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Eiji Oshima 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (3)

[Claims] 1. A disk cartridge in which a disk-shaped information recording medium whose both sides are readable / writable is rotatably stored, and is removably loaded into a disk cartridge loading section provided with a rotation drive mechanism. A read / write head supported by a rotary support member axially mounted on the outside of the disk cartridge loading section is inserted thereinto, and the information is read in accordance with movement on the recording surface of the information recording medium which is rotationally driven. In the disk storage device which performs the writing / writing, a ramp for guiding the movement of the read / write head over the surface of the disk-shaped storage medium in the disk cartridge is loaded from outside the disk cartridge loading section. After that, it is moved and inserted into the disk cartridge. Disk storage device according to claim. 2. The disk storage device according to claim 1, wherein the ramp is moved linearly with respect to the disk cartridge. 3. The lamp according to claim 1, wherein an elastic support member of the rotary support member for supporting the read / write head is slidably contacted at one point on a center line of the lamp. Disk storage.