JPS6055546A - Floppy disk driver - Google Patents

Abstract

PURPOSE:To maniaturize a cartridge type microfloppy disk driver by applying a top loading system. CONSTITUTION:A cartridge 44 is led into a cartridge guide 110 provided oscillatably to a carrier 90 in a pop-up state of the carrier 90. Then the carrier 90 is stored to a frame part 10. Thus the correct actuation and positioning are secured for the cartridge 44. With such a top loading system, the thickness of a floppy disk driver is reduced. In other words, the guide 110 has a bearing groove 98 set at the open side from a shaft 18 of the carrier 90 itself and then has a pop-up action in a pop-up mode. In this case, the opening angle is smaller than the carrier 90. Therefore the carrier 90 and the guide 110 have different actions. This causes no collision between the cartridge and a head when the cartridge is loaded and unloaded. In particular, the angle to the horizontal direction of the guide 110 can be set at a position where no collision is caused between the tip of the cartridge 44 and the head and pad respectively when the cartridge is loaded. This attains the miniaturization of a floppy disk driver.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disk drive, particularly an information recording medium (a microphone in which a disk is housed in a cartridge). This is related to the 1U drive.

A variety of information recording media are used as external storage elements for amp coaters, but magnetic disks are widely used because they allow random access and are easy to handle. So-called floppy disks, which had a flexible thin plastic substrate coated with a magnetic storage layer on one or both sides, became commonplace, and compared to previous hard disks, they were cheaper and storage capacity could be expanded arbitrarily by replacing the disk inside the cylinder. Due to various advantages, the scope of its use is rapidly increasing.

Furthermore, in recent years, it has become possible to store the 70-tube disc, which is an information recording medium, in a cartridge made of a plastic hard case or the like, thereby making it extremely easy to carry and handle while preventing damage to the recording surface and adhesion of dust. So-called cartridge-type micro-floppy disks have been developed and have come to be used in many fields of use, particularly in the field of small computers, particularly as external storage elements in personal and home computers such as so-called personal computers and microcomputers.

According to this cartridge type micro 70 disc, the disc itself is housed in a hard plastic case, and the shutter III is attached to the case.
The recording surface of the disc is almost completely protected during handling, and the user can no longer touch the recording surface of the disc. It is now possible to handle floppy disks with IR without having to worry about the destruction of recorded information due to foreign matter adhering to it, and it is also possible to mail 70-tube disks in the same way as regular mail. 11L has made a great contribution to expanding the scope of use for personal use.

1) In order to make the most of the advantages of the lll Shika-1 heritage type micro 70 disc drive, the conventional general < r
Various new WJ structures different from B-inch 70-tube disk drives are required, but the main desire is to miniaturize the device itself and reduce its power consumption as much as possible.

1 However, due to recent improvements in LSI chips, etc., the computer itself has become significantly smaller despite its processing speed and processing power, and the overall size of a computer system has become smaller than that of the keyboard, monitor, and external devices. It is known that it depends on the storage device. Therefore, there is an urgent need to reduce the size of the drive for the cartridge-type Micro 70 disc.
It is essential to easily realize a portable microcomputer device, and furthermore, for such a portable device, it is essential to realize a battery-powered device with low power consumption.

As for conventional 71] Tubidisk drives, the same mechanism as for general large floppy disks is used for the cartridge type Micro 70 Tubidisk mentioned above, and in particular, the method of loading the disk into the drive is mostly front loading. In other words, the cartridge is pushed into the loading slot provided on the front of the device along the direction of the disk surface, and the disk is held in the operating position. With this structure, a path for the cartridge to pass during loading is secured in advance within the device. There is a limit to the miniaturization of the device because it has to be kept in the same condition, and there are limitations in the thickness direction of the device. Was.

OBJECTS OF THE INVENTION The present invention has been made in view of the problems mentioned above in the prior art, and its purpose is to provide a miniaturized floppy disk drive for driving a car-type micro-floppy disk. .

Structure of the Invention In order to achieve the above object, the present invention provides a spindle motor that directly drives a 70-tube disk, and a plurality of positioning bins that position a disk car's helical edge at a predetermined position relative to the spindle motor, and a plurality of positioning bins that contact the disk. a carrier that is swingably supported by the frame section and accommodates a disk cartridge/ridge; , a cartridge guide to which a disk cartridge is attached/detached is swingably and parallelly movably supported on the carrier, and the cartridge is inserted into the cartridge guide separated from the carrier when the carrier is in a pop-up state;
When the carrier is engaged with the frame, the cartridge guide moves in parallel above the carrier while holding the cartridge to perform a predetermined positioning action, and the carrier is provided with a bush-out that applies an ejection force to the cartridge, and a button that urges the bush-out. a bush-out trigger is provided for holding the bush-out trigger, and the Kirelia is provided with a trigger set spring that engages the bush-out trigger;
When the carrier is popped up, when the cartridge guide reaches a predetermined angular charge, the trigger set spring comes into contact with the trigger to the push-out 1 and releases the push-out ejection force to eject the cartridge.

Detailed explanation of the example Preferred embodiments of the present invention will be described below based on the drawings.

The standard disk drive according to the present invention is characterized by adopting a conventional loading method, and is shown in FIG. 1, a partially exploded side view, and FIG. The overall configuration can be understood from the side view showing the operating state and the frame side plan view in FIG. 3.

Apparatus 1;1Illustrated1. The frame part is pivoted at one end relative to the frame part and is divided into a rear side and a rear side, which can be rotated by a predetermined angle 1α to load the car 1 to the carriage. The computer main body is C
Includes PIJ, keyboard and monitor, ff1l J!
ff is configured integrally with the computer 1-1 disk drive to form a c=1 computer system, and preferably the entire system is configured to be portable;
For example, it is preferable to incorporate the entire system into an attaché case or the like.

The structure 71 on the frame side includes a frame 10 made of die-cast aluminum or the like, and a circuit board 7- (not shown) for driving the device is incorporated in the lower back side of the frame 10.
Reading/writing of the disk is controlled together with a host circuit provided in the computer main body.

A front plate 12 and side plates 14.16 are fixed to the frame 10, and a carrier described later is rotatably supported by a carrier shaft 18.20 fixed to the rear end of the side plate 14.16.

A spindle motor 22 is built into the frame 10, and the motor 22 includes a motor shaft 24 which is pivotally supported by the frame 10,
The rotor 26 includes a rotor 26 fixed to the motor shaft 24 and a stator coil 28 fixed to the frame 10 in close proximity to the lower part of the rotor 26, and the rotor 26 is composed of a multi-pole magnetized rotor. , stator coil 2
By supplying alternating power to 8, a predetermined disk rotation action is performed. A drive hub 30 is fixed to the motor shaft 24, and a 70 disk disk (described later) is positioned on the drive hub 30 concentrically with the motor shaft 24, and the drive pin 32 of the drive hub 30 directly drives the floppy disk. 8- is possible.

In order to position the 70-tube disk with respect to the spindle motor 22, four positioning pins 34, 36, 38, and 40 are planted and fixed on the frame 10, and each pin's -
The disk is positioned and held on the F plane.

A cartridge-type microfuge used in the present invention [1 disk is shown in FIG.
A driven hub 45, which is rotatably housed inside and fixed to the disk 42, is positioned 1u opposite the drive hub of the spindle motor 22.
The drive pin 32 is inserted into the hole a, and the disk 42 is driven to rotate. In the cartridge/I/I, head introduction holes 44d along the radial direction of the disk 42 are opened on both sides of the child, and the disk 42 is read/written. However, as is well known, the head introduction hole 44
d normally slides into the cartridge 44! Established in (J
The disk 42 is closed by the shutter 50, which is moved to the position indicated by the chain line so that the opening 50a faces the head introduction hole 44d.
can be exposed. The shutter 50 is slid by a shutter lever provided in the device to be described later, and the cartridge 44 is provided with a 1M44a for guiding the tip of the shutter lever to a position where it engages with the shutter 50. The cartridge 44 also has four positioning parts 44.
b, 44C are installed, and these four parts 44b, 4
4G engages with the aforementioned locating pins 36.40, and the surface of the cartridge 44 engages with the aforementioned locating pins 34.40.
38, which allows for proper positioning of the cartridge 44 in the device. However, as is well known, in cartridge type micro-floppy disks, the final position of the disk 42 is determined by the cartridge 4.
The above-mentioned driven hub 45 is brought into close contact with the drive hub 30 of the spindle motor 22 without depending on the positioning of the car 4 itself, and the position is determined by the position where the drive pin 32 and the lead groove 45a are engaged. /I/I positioning is the final <T Gz id ' of this disk 42.
The accuracy is determined within the range that makes the toy look the best.

In order to read/write the disk 42, a kit 1 ridge 46 is attached to the frame 10 on the spindle [-
-- II 22's central axis f), that is, it is freely installed in the radial direction 1) toward the center of the disk 42, and is read/written at the front end of the A head 48 is fixed.

In order to slidably support the kill ridge 46, the 71 gnome 10 has two parallel 4-nilly ridges 51.
N j 2 is fixed and the carriage 46 can slide along the carriage axis 51.52.

An arm 54 is rotatably supported on the key 1ν ridge/I6 on an arm shaft 56, and a pad b8 is gimbally fixed to the tip of the arm 54.
2 is a pressure spring 60 between the head 48 and the pad 58.
C. It is compressed and clamped with a predetermined pressure. In the embodiment, a pad 58 is provided at the tip of the 11-arm 54 to provide a single-sided drive system for the disk 42, but in the present invention, by setting a head in place of the pad 58, , it is also possible to use a double-sided drive type device.

In order to reciprocate the four-wheeled carriage 46 having the head/48 and the pad 58 along the carriage shaft 51.52, in the present invention, a stepper motor 62 is fixed to the frame 10 and the stepper motor 62 is driven by a stepping motor. The carriage 46, ie, the head 48, is driven for random access to a predetermined position in the radial direction of the disk 42, and can read/write a desired track on the disk 42.

In the embodiment, a pulley 64 fixed to the drive shaft of the stepper motor 62 and the carriage 46 are connected by an α belt 66, which will be described in detail later, and rotation of the stepper motor 62 is converted into reciprocating movement of the carriage 46.

Further, in order to detect that the head 48 is located at the head of the disk 42 at a position of 12-1 to 100'', a 1.1 m tip 46a is provided at the tail 9i1 of the carriage/I6, and the light shielding portion 'I In the passing area of 6a (, L frame 10
A Δt interrupter 74 is provided, which is fixed to rOr)Jl~, and the rack is electrically detected.

In order to detect that the cartridge 4/I is positioned and maintained in the correct operating state, the frame 10 is provided with a car 1 edge detection switch 76,
It is clear from Fig. 5 <'K J: Sea urchin, positioning pin 3/
It is movable in the upper part with a spring.
The cartridge detection contact 80 is engaged with the actuator 78 which is activated, and the cartridge 44 presses down the convex portion 7F3a of the actuator 78, so that the rlE1 is in the installed state (13 and the above-mentioned state). The cartridge detection contact 80 outputs an A-operation signal, thereby making it possible to supply a predetermined start signal to the control circuit.

Furthermore, the frame 10 has a line 1hep [ shown in FIG.
1 protector 82 is provided, and if necessary, writing to the disk is prohibited. The light protector 82 includes an actuator 84 that is slidably supported by the positioning pin 38 and biased in one direction.The light protector 82 turns off the light protector contact 86 by the actuator 84 to turn off the desired state. Write protection is performed. That is, the actuator 84 is provided with a convex portion 84a, and when the write protector contact piece 44e of the cartridge 44 is cut off as shown in FIG. , even when the cartridge 44 is in the operating state, the signal can be output to the control circuit in the "No Trespassing 1" state.On the other hand, for a cartridge in which the write protector contact piece 44e is not cut off, the signal is activated at the same time as the cartridge is installed. The child 84 moves downward to turn off the write protector contact 86, thereby making it possible to release the write protection as desired.

Structure of the carrier side The proppy disk drive according to the present invention is characterized by a top loading system, and for this reason, the frame 1
0 has a carrier 90 and a pop-up spring 92.
; is pivoted in a state in which it is biased in the opposite direction of the eye in FIG. 1.

The carrier 90 is rotatably supported on the 71 gnome 10 by the above-mentioned Chia rear shaft 18.20 and is fixed to the 1-1 rear body 9/I and the 4-17 rear body 94.
7. Details of the Kia rear body 94 are shown in FIG. 7, including the rear cover 96. The Chiaria 90 stores a disc cartridge inside itself, but the present invention
1, 1, the car 1 which substantially accommodates the cartridge; Forming a support member of the heritage guide, the car 1-ridge performs a double-action movement by the carrier 90 and the car 1-ridge blade, which swing around an axis relative to the frame. In addition, in order to correctly position the car 1 to the ridge with respect to the spindle motor 22, the car 1 to ridge guy 1 must be properly positioned. Parallel movement within the rear 90, like this
By this movement, in the present invention, the limited space can be used effectively, the cartridge 15 can be reliably attached and detached, and the device itself can be made smaller and thinner.

The carrier body 94 in this embodiment not only has the above-mentioned cartridge storage function, but also has a carrier lock mechanism for positioning and holding and releasing the carrier 90 with respect to the frame, and also has an arm lift mechanism for the arm 54 of the carriage 46 mentioned above. Built-in.

Bent parts 94a are provided on both sides of the carrier main body 94 to serve as a cartridge guide support function, which is the main purpose of the Kia rear main body 94, and a bearing groove 98 with an open interior is provided in the bent parts 94a. The bearing groove 98 enables rotation and parallel movement of the cartridge guide, which will be described later. Further, other bent portions 94b and 94ctfi are provided on both sides of the carrier body 94, respectively.
This restricts the lateral movement of the cartridge guide.

The carrier locking mechanism described above includes a lever 104 in the carrier body 94 that is movable in the lateral direction 17 nr1 16- in FIG. C1 force is applied to the right side of the figure, and the lock end 104a is +
1/It protrudes rightward from the rear main body 94.

Therefore, by engaging with the lock hole 12a provided in the C1 front plate 12, the lock lever 104 can reliably position and hold the key 17 rear 90 with respect to the frame 10.

Further, the other end 104b of the 11-piece 1-piece 104 is exposed from the opening 94d of the main 1191-piece 94, and a predetermined lock release button or the like is fixed to the l1ll end 104b, [] By moving the lever 104 to the left against the urging force of the spring 106, the front plate 12
The lock lever 104 is disengaged, and the carrier 90 can now be popped up from the frame 10.

-1-I + further arm lift par 10 for rear body 94
8 is fixed 2 and J-tally, 18 of the arm 54 mentioned above engages with the arm lift 68, and when the carrier 90 pops up, the arm lift par 108 lifts the arm lift 68.
The pad (or the upper head) is protected by lifting the arm 54 and separating it from the carriage against the biasing force of the pressing spring 60.

As is clear from FIG. 1, a carrier cover 96 made of plastic or the like is fixed to the carrier body 94, and this carrier cover 96 forms part of the top and front cover of the floppy disk drive itself.

As is clear from the above description, the carrier 90 rotates from the frame 10 to the pop-up position shown in FIG.
Both of the loading states shown in the figure can be taken, and thereby the cartridge can be positioned at a predetermined position and the cartridge can be taken out. However, in the present invention, the disk cartridge 44 is not directly attached to or removed from the carrier 90. The cartridge guide 110 is attached to and detached from a cartridge guide rotatably and translatably supported by the carrier 90, and FIG. 8 shows the detailed structure of the cartridge guide 110.

Projections 112 protruding outward are provided on both sides of the cartridge guide 110, and the projections 112 engage with the bearings i & 98 of the carrier main body 94, thereby causing the cartridge guide 110 to Noria 9
It is possible to swing and translate in parallel with respect to 0.

Then, in Fig. 8 of the ridge guide 110 [
An attachment/detachment opening 114 made of plastic or the like is fixed on the right side of the J, and as is clear from FIG. It will be held on August 8th. Cartridge pressing springs 116 and 118 are fixed to both sides of the cartridge guide 110, and the upwardly bent ends of the springs 116 and 118 contact the carrier body 94, and the downwardly bent ends of the springs 116 and 118 contact the carrier body 94, and the downwardly bent ends of the springs 116 and 118 are fixed to the cartridge guide 110 on both sides thereof. Contact with 44.

When the carrier 90 is in the pop-up state as shown in FIG. 1 and is positioned here, and when the cartridge is inserted from FIG.
18 and is pressed downward.

Furthermore, when the carrier 90 is positioned and locked to the frame 10 as shown in FIG.
The cartridge accommodated in
It will be pushed towards 8.40 and the day-ding position will be determined.

The cartridge guide 110 further includes a button out 12.
0 is rotatably supported by a shaft 122, and is normally biased clockwise by a spring 124 to eject the cartridge inserted into the cartridge guide 110 after use. The shutter 50 of the cartridge 44 shown in FIG. 4 is opened. That is,
The above-mentioned 20-Putshikoaud 120 is provided with a downwardly bent bent portion 120F3h at its tip, and the 111 bent portion 120a enters into the vortex 4 and 'l a of the cartridge 44 to push the shutter 50 back. , the head introduction hole 44d is opened.

Fig. 8 (1 pushchair 120 cartridges/l
/I is inserted, J is shown, and it is moved in the counterclockwise direction, and in this state, the hook part 12 of the button out 120 is
0 i) Engages with the trigger end 126a of the Lt bush-out trigger 126 to maintain the shutter open state.

The push rod trigger 126 is rotatably supported on the cartridge guide 110 by a shaft 128, and is biased clockwise in FIG. 8 by three springs 130.

Further, the cartridge guide 110 includes a head guard 13.
2 is rotatably supported by a shaft 134, and the head guard 132 receives a biasing force in one direction from a spring 136 on the opposite side of the head 48 in FIG.
and the pad 58 to prevent the head 48 from being damaged when the cartridge 44 is not loaded.
I'm doing 12.

The head guard 132 is provided with a bin 132b, and by pushing the bin 132b away by the cartridge 44, the head guard 132 is retracted to the outside of the cartridge 44 when the cartridge is loaded.

Effects of the bush-out and head guard FIG. 10.11 shows the loaded state of the cartridge 44 in the cartridge guide 110, and will mainly explain the effects of the bush-out 120 and the head guard 132.

With the carrier 90 in the pop-up state shown in FIGS. 1 and 9, the cartridge 44 is inserted into the cartridge guide 110 from the insertion/removal port 114, and FIG.
It is in contact with the bent portion 120a of 0. At this time, the guard end 132a of the head guard 132 fits under the arm 54, and can protect the head 48 when the carrier 90 is housed in the gnome 10 with no cartridge 44 inserted.6. However, in the pop-up state shown in FIG. 10, as is clear from FIG.
Since the head 132 is bent on both sides, it is impossible for the head 132 to come into direct contact with the arm 54.

As the cartridge 44 is further pushed to the left in the figure from FIG.
a) Move the shutter 50 in the direction of the arrow claw ■, u) 1st eye 5
0a, head introduction rl 44d as shown in Figure 111
listen to it. Then, as the car 1 to ridge/I'l further moves to the left, its left end contacts the bin 132b of the head guard 132, and as shown in FIG. 1! 10 no 31
Get 2 evasions.

FIG. 11 shows a state in which the cars 1 to 44 are pushed to predetermined positions, and at this point, the bent portions 120a of the pushers 1 to 120 completely hear the shutter 50, and in this state, the head inlet 146 overlaps the 23- opening 50a, so the disk 42 is exposed and can be read/written by the head 48.

At this time, since the head guard 132 is rotated clockwise as shown in the figure, it does not interfere with the contact between the head and the disk 42. Further, this state is maintained by the hooking portion 120b of the bushing out trigger 126 being engaged with the trigger end 126a of the bushing out trigger 126, and despite the clockwise biasing force of the spring 1240, the bushing out 120 is held in this state. The state can be maintained.

Therefore, in the state shown in FIG.
If the cartridge 44 is stored toward the 0 position, the cartridge 44 can be positioned at a predetermined position, and in this state, the head can easily read/write the disk 42.

In addition, in order to take out the cartridge 44 after use from the cartridge guide 110, during the pop-up of the carrier 90, pull the button out 1224-0 away from the button out trigger 126 and release the spring 1.
24, the cartridge 44 can be taken out from the cartridge guide. For this purpose, at the appropriate time of pop-up, the push-out trigger 126 is rotated as shown by the chain line in FIG. Release the engagement between the rigging end 126a and the pulling part 120b, and
20 takes out the cartridge 71/I. This release action of the push-out trigger 126 is performed in conjunction with a pop-up action to be described later.

@n1 of the cartridge (action) In the present invention, as is clear from the structure described above,
The carrier is flipped up and rotated with respect to the frame part, and in this pop-up state, the cartridge 44 is introduced into the cartridge guide which is swingably installed at the rear of the key 11.
By storing the carrier in the frame after this introduction, the correct operational positioning of the cartridge 41 is achieved, and the so-called top-loading system of the present invention achieves miniaturization and thinning of the device.

Figures 12.13.14 show the Cartlin 9440 attachment/detachment operation.

In FIG. 12, the carrier 90 is flipped up about the axis 18 to the most fully tilted state, and in this state, the cartridge kite 110 is moved by the cartridge pusher springs 116, 1.
18, the carrier 90 is held at a position rotated clockwise from the carrier 90.

As is clear from FIG. 12, the cartridge guide 11
0, the bearing part (bearing groove 98) is on the open side from the shaft 18 of the carrier 90 itself, so the cartridge guide 110
performs a flip-up motion by double action on the pop-up poem, and its opening angle is smaller than that of the carrier 90 in the pop-up position shown in FIG. Therefore, in the present invention, the carrier 90 and the cartridge guide 110 are separated and operated separately, so that the cartridge mounting 11j (
It is possible to provide a structure that can reliably avoid collisions between the head and the cartridge at times.

In particular, the angle of 3.1 in the horizontal direction of the cartridge guide 110 in FIG. 12 is set at an optimal position to prevent the tip of the cartridge 44 from colliding with the head and pad (upper head) when inserted. This makes it possible to downsize the device.

Furthermore, since the drive according to the present invention has a top-loading mechanism as described above, it is possible to use a cJ
Kitria and car 1~ into which the L cartridge 44 is inserted
Since the rigid guide protrudes upward from the surface of the main body or attache case, the actual cartridge insertion work can be performed extremely easily.

In FIG. 12, the car 1-ridge 44 is easily inserted into the cartridge guide, and the car 1-ridge pressing spring 11 is shown in FIG.
6. Pushed downward by 1"18.

When the cartridge is inserted, the front surface of the apparatus has the attachment/detachment port 114 exposed to the outside, as shown in FIG. When inserting the cartridge, the arm 54 is lifted by the arm lifter 108, as is clear from FIG. This will not damage the device or the cartridge.

Cartridge 4 to the aforementioned cartridge guide 110
4, the carrier 90 is rotated clockwise by the user to push the carrier 90 into the frame portion as shown in FIGS. 13-14. FIG. 13 shows that the cartridge guide 110 starts to come into contact with the cartridge guide positioning bin 138° 140, 142, 144,
It shows a state in which it begins to rotate and translate itself. That is, from FIG. 13, the cartridge guide starts to move relative to the carrier 90 against the cartridge pressing springs 116, 118, and finally, as shown in FIG. It settles in a state of parallel movement upwards inside.

Figure 14 (also, the carrier 90 corresponding to Figure 2 is completely
The cartridge guide 110 is shown stored in the 1st part 11th part, and the cartridge guide 110 is shown with the 7-t-ridge 44 stored.
It is moved to the lower half of the II rear 90, and this position is maintained so that the disk can be driven by the spindle motor 22.

As is clear from the figure, the carrier 90 itself has a thickness that is sufficiently greater than the thickness of the cartridge guide 110, and this thickness allows for a sufficient introduction opening to receive the cars 1 to 44 in the pop-up state. On the other hand, when the carrier 90 is pushed into the frame part, the cartridge guide 1
10 is moved to the lower half of Kirelia, it is understood that space can be used effectively and the apparatus can be made smaller.

During the cartridge 1 application action shown in Fig. 12.13.14 described above, the trigger set of the push core out 120 shown in Fig. 10.11 is performed, and these 1 to 1 release actions are shown in Fig. 15.16.17. It is shown.

FIG. 15A is a front view of the Pushshiko Auditori 126 in FIG. As is clear from the side view of FIG.
It bends and extends in the direction, and a relief part 146a consisting of an inclined surface is formed at its tip. Furthermore, as is clear from FIG. 15A, the trigger set spring 146
A diagonal slide surface 146b is formed at the right end of the slide surface 146b. Then, the trigger set spring 146 can engage the end 126b of the push rod trigger 126 to perform a predetermined trigger set.

That is, as can be understood from the explanation of FIG. 10.11, when the cartridge 44 is inserted, the button out 120 is moved to the position 1u in FIG. 11 by the button out trigger 126.
After being held, the carrier 90 is stored in the frame portion, and the push-out trigger 126 is inserted into this storage n-phase portion as shown in FIGS. 15A and 16. 1 Heli descends toward the gullet spring 146. And now, i~Regasetsu 1 end 126
b is the relief part 171f: a is in contact with J, which is shown by the chain line in Fig. 16. 1
26 b is 1~riga l? Slide surface 14 of Tsuto spring 140b (enters into 1.l/J of 1b. Therefore, the 15th
As shown in FIG.
As a result, without releasing the engagement of the push rod 120, the push rod 1 to the lever 126 can be moved in one direction from the push rod 1 to the spring 146, i.e. The trigger action can be completed.

When the carrier 90 is reliably housed in the frame portion through the series of actions described above, the lock lever 104 shown in FIG. 7 engages with the front plate 12 to perform a predetermined locking action. This allows the device to perform certain read/write operations.

After the predetermined reading/writing operation is completed, the lock lever 1 is
By the operation 04, the carrier 90 is popped up again from the frame portion, and the cartridge 44 is ejected by following the reverse path of FIGS.

FIG. 17 shows how the cartridge 44 is ejected by the pushout 120 when the cartridge guide 110 opens from the frame portion at a predetermined angle. The angle is set at such an angle that the product can be ejected smoothly without contacting the material.

That is, in FIG. 17A, the trigger set end 126b of the push-pull open trigger 126 is inserted below the slide surface 146b of the trigger set spring 146 as described above, and in this state, the carrier 90 is popped up as described above. -33- 〇rr 32- Move along with the cartridge guide 110 toward the pusher 1 to the rig 126. And this 11.
1, FIG. 7) 17) Obviously, the one end 126b of the ligature is in contact with the slide surface 146b and moves toward the right in FIG. 17Δ (axis 128 in FIG. 1713) as shown.
Move in the opposite direction (old direction). At this time, the pull end 126a of the Pushko Aud 120 is
As a result, the cartridge 44 is ejected from the cartridge guide 110 due to the biasing force of the spring 124 described above.

Following C1 Push] Out 1 ~ Riga 126 and Trigger Sera 1
~ Spring 1/I6 Which arrangement determines the i of the cartridge 44?
By setting the JI angle and selecting it at a predetermined angle, the pop-up timing of the carrier 90 and the IJI output timing of the car 1-ridge 44 can be determined correctly.

34- In order to move the rad to a desired track on the disk, in this embodiment, the stepper motor 62 is used as described above.
A mechanism for converting the rotational driving force of the stepper motor 62 into reciprocating motion of the carriage 46 will be described below with reference to FIGS. 18 to 21.

The feature of carriage feeding in this embodiment is that it uses an α belt whose both ends are stretched along the carriage and part of which is fixed to the pulley.This makes it possible to achieve reliable feeding even in narrow spaces. can.

In FIG. 18, the carriage 46 has a belt holder in section 1.
50 is provided, and both ends of the α belt 66 are fixedly supported at both ends of the portion 150.

As shown in FIGS. 19 and 20, the α belt 66 is fixed to the pulley 64 with a pin 152, and the belt width is narrow on one side from the fixing part, and the width of the belt is narrow on the other side. A groove 668 is provided in the center.

Therefore, the narrow belt portion can freely pass through the inside of the groove 668, which allows α bell 1-〇〇 to
It is understood that the rotation of pulley 6/I causes the belt to be unwound on one side of C, and is wound on the other side.

In addition, the means for fixing the pulley to the α bell 1 is the above-mentioned 11.
- It is also possible to firmly fix the two not only by screwing but also by spot welding, for example.

Then, one end 66b of the belt 66 is fixed to the right end of the belt holder 150 in the fixed IN structure shown in FIG. The α belt 66 and the carriage 46 are connected by pulling the fixing claw 150a formed at the other end of the portion 150 eleven times.

In FIG. 21, a structure is shown in which one end 66b of the α belt 66 is fixed to the belt holder part 150 with one touch, and a belt support spring 154 is fixed to the belt holder part 150, and a belt support spring 154 is fixed to the belt holder part 150. Fixed spring part 154
The tip of a is engaged with a lock pin 156 fixed to one end of the α belt 66 (35-). That is, the lock bin 156 is fixed to one end of the α belt through a washer 158 by caulking or the like.
In addition, a tapered portion 156a and a tapered portion 15 are provided at the tip thereof.
It has a neck portion 156b that continues to 6a. The belt receiver portion 150 is provided with a groove 150b and a through hole 150C penetrating toward the groove 150b, and the lock pin 156 is freely inserted into the through hole 150C.

In FIG. 21, the lock bin 156 fixed to one end of the α belt has its tip extending from the through hole 150C to the groove 15.
The spring portion 15 protrudes into the neck portion 156b and is fixed here to the neck portion 156b.
The tip of 4a engages with a biasing force upward in the figure.

Therefore, in this engaged state, one end of the α belt 66 is firmly fixed to the belt holder part 150, and when removing it, it is only necessary to lift the fixed spring part 154a, and no screws or other attachment/detachment parts are required. There's nothing to do.

The other end of the α belt 66 is simply hooked onto the groove 660 by the fixing claw 15.
Although it is fixed simply by hooking it on the belt 0a, in this state, the α belt 66 is normally fixed to the carriage 46 in a slack state, and it is impossible to obtain the desired positional accuracy during reciprocating motion by the pulley 64. I can't.

In this embodiment, in order to correctly tension the α belt 66 on the carriage 46, a biasing force is applied to the belt 66 again after the α belt 66 has been fixed to the belt receiving part 150. For this purpose, a pressing force arm 160 is swingably supported on the belt support section 132 by a shaft 162, and a biasing spring provided at the other end of the belt support spring 154 is attached to the suppressing force arm 160. Section 154
A biasing force b is applied, which causes the pressing force 1
60 always applies a biasing force to open the belt 66 outward, and the desired tension force is always applied to the belt 66 after assembly is completed. Therefore, according to the structure of the embodiment, it is possible to effectively absorb expansion due to thermal changes in the α belt 66 or the carriage 46, changes over time, and other errors, and always obtain a good tensioned state.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a compact, particularly thin 7
A zero-tubi disk drive can be provided, which can make a significant contribution to the miniaturization and improved portability of computer systems.

[Brief explanation of drawings]

FIG. 1 shows a preferred embodiment of the 70-tube disk drive according to the present invention, and is a side view of the carrier with the carrier popped up. FIG. 2 shows the operating state of the disk with the carrier of FIG. 1 stored in the frame. FIG. 3 is a plan view of the frame portion of this embodiment; FIG. 4 is a plan view of the cartridge-type Micro 70 Tubi disk used in the present invention; FIG. 5 is the same as that shown in FIG. 6 is a sectional view taken along v--vr of FIG. 3 and shows the write protector mechanism. FIG. 7 is a cross-sectional view of the cartridge detection switch mechanism shown in FIG. 8 is a plan view of the car 1 to the rigid guide according to the present embodiment, FIG. 9 is a front view of the device in the pop-up state as viewed from the cartridge insertion side, and FIG. 10.11 is a plan view of the present embodiment. Example of Butshu Out OJ
Figures 12, 13, and 14 are explanatory diagrams showing the storage function of the carrier in this embodiment. Figure 15 and Figure 15B are views of Pushshikoara 1 seen from the direction of arrow B in Figure 10. ~Explanatory diagram showing the trigger set action, Figure 16 L; 1 &ff 15 Side view of Figure A, Figure 17
A1 Fig. 1713 is an explanatory diagram showing the push-out trigger action, Fig. 18 is a plan view of the main part showing the carriage feeding mechanism in this embodiment (2), Fig. 19 is a diagram showing α bells 1 to 1 for carriage feeding. 20 is a plan view of the α belt, and FIG. 21 is an enlarged plan view of a main part showing a support mechanism for one end of the α belt in FIG. 18. 10...Frame, 18.20...Carrier axis, 22...Spindle motor, 34.36.38.40...Positioning pin, 42
... disk, 44 ... cartridge, 50 ... shutter, 46 ... carriage, 48 ... read/write head 51.52 ... carriage shaft, 54 ... arm, 58 ...・ Pad, 62 ・ Stepper motor, 64 ・ Pulley, 66 ・ α belt, 68 ・ Arm lift, 76 ・ Car 1~Rigidity detection switch, 80 ・
・・Cartridge detection contact, 90 ・：1V+
Rear, 92... Pop-out spring 9/I...
4-17 Rear body, 96...Carrier cover, 110...Cartridge guide 116.118...Cartridge 1 upper spring 12
0... Push out 126... Push out trigger, 132...
・Head guard, 138.140,142,144... Cartridge guide positioning pin. Agent Patent attorney Kenji Yoshida (1 other person) Figure 10 1゜ Figure 11 62b 'ci Pass Figure 18 Figure 19 Jingaku'' Figure 20 Figure 211! ll

Claims (1)

[Claims] (1) A spindle motor that directly drives a 70-tube disc, a plurality of positioning bins that position a disc cartridge at a predetermined position relative to the spindle motor, and a head that contacts the disc to read/write information. The disc cartridge includes a frame part having a carriage that can move the head to a desired track on the disc, and a carrier that is swingably supported by the frame part and stores the disc cartridge, and the carrier has a cartridge guide to which the disc cartridge is attached and detached. The cars 1 to 1 are supported to be swingable and parallel, and when the carrier is in a pop-up state, they are inserted into a cartridge guide extending from the carrier, and when the carrier is engaged with the frame, the cartridge guide holds the cartridge. The 4:1 area is provided with a trigger for a pusher 1 that applies ejection force to the cartridge and a trigger for a brush corer 1 that holds the bushout in a biased state. , and the above-mentioned: 1-year is provided with 1 heliga 17 1 ~ spring that engages the bush out trigger, and the hopper 711 of the carrier is provided with a spring. 4. A 11-pin disk drive characterized in that when the car 1~ridge guide is at a predetermined angle, a trigger set spring comes into contact with the pusher 1~trigger to release a push-out ejection force and eject the cartridge. .