JPH04302853A - Disk player - Google Patents

Abstract

PURPOSE:To simplify the constitution of a driving source of a disk player. CONSTITUTION:A driving shaft 91 having a hexagonal cross section is passed through a moving chassis 9 for moving to a mechanical chassis, and is fixed with both ends to the mechanical chassis 2. This driving shaft 91 is fitted into a drive transmission gear 92 to be freely slidable in the axial direction and engaged in the circumferential direction on the moving chassis, and one end on the side of the mechanical chassis 2 is fixed with a driving gear 87. Then, driving force is transmitted to the drive transmission gear 92. By this method, the driving gear 87 is also integrally rotated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and more particularly to a disc player equipped with a disc changer capable of exchanging and playing a plurality of discs.

0002

2. Description of the Related Art A disc player plays back information signals from a disc on which information signals are recorded, such as a digital audio disc, and a plurality of disc trays each having a disc placed thereon are stored in stages. A disc cartridge is detachably attached to the disc cartridge, and a disc changer mechanism is used for selectively supplying discs from the disc cartridge to a disc playback section. In a disc player equipped with such a disc changer mechanism, a tray drawer mechanism that forms a part of the disc changer mechanism and is movable in a straight line between a cartridge mounting part in which a disc cartridge is installed and a disc playback part is used. , the disc tray is pulled out from the disc cartridge to the disc playback section side so that the entire disc placed on it is located outside the disc cartridge, and is placed on the disc tray placed in the pulled out position. The placed disc is moved upward and mounted on the disc reproducing section, and the reading means reads, ie, reproduces, information signals from the disc.

0003

[Problems to be Solved by the Invention] However, in the case of a disc player equipped with such a disc changer mechanism, the disc playback device side is moved relative to the disc storage section, and the desired disc is pulled out and transported to the playback mechanism. , a large number of motors will be installed as drive sources. Therefore, the structure of the disc player becomes complicated and its weight becomes large. The present invention has been made in view of the above problems, and an object of the present invention is to provide a disc player that can transmit driving force between a chassis and a movable chassis.

0004

[Means for Solving the Problems] In order to achieve the above-mentioned object, there is provided a chassis that forms a storage section in which disks are stored in a stacked manner, and a disk that is arranged movably in the stacking direction of the disks with respect to the chassis. a movable chassis on which a playback device is mounted, a drive source is provided on either the chassis or the movable chassis, and a driving force from the drive source is applied between the chassis and the movable chassis to move the movable chassis. Regardless, a transmission mechanism is provided to transmit the transmission to the other chassis in which the drive source is not provided.

[0005]

[Operation] In the disc player according to the present invention, between a chassis provided with a disc storage section and a movable chassis in which a disc playback device is mounted, the driving force of a drive source provided in one of the chassis is used to move the movable chassis. Regardless of the state, it can be transmitted to the other chassis and used as a drive source for the drive mechanism in this other chassis.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, embodiments of the present invention will be described in which the present invention is applied to a disc autochanger player.

FIG. 1 shows the main parts of an example of a disc autochanger player to which the present invention is applied. In the figure,
1 indicates the outer case, which is small, for example, depth 215-230m
It is formed into a cube shape with a width of 80 to 95 mm and a height of 150 to 160 mm, and an insertion opening 1a for a disk cartridge in which a plurality of disks are stored in a stack is formed in one half of the upper surface thereof. . A mechanical chassis (hereinafter referred to as mechanical chassis) 2 in which various mechanisms are mounted inside the outer case 1 is supported by an elastic suspension member 3 and a buffer support member 4 in a vibration-proof manner.

The mechanical chassis 2 has both side plates 2a, 2
It is formed into a quadrilateral frame shape from b and front and rear plates 2c and 2d, and a cartridge mounting portion 5 for mounting a disk cartridge is formed on one half 2A side of the frame in correspondence with the insertion opening 1a of the outer casing 1. A cartridge locking and ejecting mechanism 6 is provided. Further, on the other half 2B side, a movable chassis 9 on which a disc playback device 7 and a disc transport mechanism 8 are mounted is provided so as to be moved by a movable drive mechanism 10 in the disc stacking direction with respect to the cartridge mounting part 5. ing.

The lock/eject mechanism 6 provided in the cartridge mounting portion 5 of this mechanical chassis 2 has a lock pin 11 protruding thereon which engages with the disk cartridge.
The cartridge mounting portion 5 is attached to the central portion by the shaft pin 12.
The outer surface of
a1 A lock lever 13 is rotatably attached to the outer surface of the lock lever 13 and has a tip 13a extending toward the other half 2B, and a guide pin 14a on the same surface as the lock lever 13.
A lock release operation lever (hereinafter referred to as the operation lever) is arranged to be slidable along the lock lever 14b and is connected to the rear end portion 13b of the lock lever 13 via the torsion spring 15.
16, and both side plate portions 2a1 and 2 disposed inside the cartridge mounting portion 5 and on the one half portion 2A side at the base end portion.
b1 An eject lever 19 which is rotatably mounted by a shaft 17 and is always biased and rotated in a direction to push out the disk cartridge by a tension spring 18, and both side plates corresponding to one side edge of the tip 13a of the lock lever 13. An engagement pin 13 is pivoted between 2a and 2b, and is rotated when a disk tray of a disk cartridge (to be described later) is pulled out, and protrudes from the tip of the lock lever 13.
The ejection prevention plate 20 is configured to abut against the lock lever 13 and prevent the rotation of the lock lever 13 to prevent malfunction of the eject. The cartridge mounting portion 5 is also provided with an eject switch Se and a disk detection switch Sd for detecting the storage state of the disk D in the disk cartridge, corresponding to the operation lever 16.

Furthermore, a moving drive mechanism 10 for the moving chassis 9
The moving motor 21 is attached to the one side plate portion 2a2 on the other half 2B side of the mechanical chassis 2, and the moving motor 21 is screwed into the moving chassis 9 in a diagonal direction corresponding to the one side plate portion 2a2. Other side plate part 2b
2, and a gear member 24 that transmits the rotation of the moving motor 21 to the two feed screws 22, 23.

That is, as shown in FIG. 3, a worm 25 is attached to the shaft of the moving motor 21, and a drive gear is attached to the end of the two feed screws 22, 23 on the side plate portion 2a2. 22a and 23a are fixed. Then, the worm 2 is attached to the one side plate portion 2a2.
Worm wheel 2 that meshes with 5 to form a worm gear
6, a large-diameter center gear 27 that meshes with the small-diameter gear 26a of this worm wheel 26, and large-diameter teeth that are located between this center gear 27 and the aforementioned drive gears 22a, 23a and mesh with the drive gears 22a, 23a. Parts 28a, 29a
By pivoting transmission gears 28 and 29 consisting of small-diameter tooth portions 28b and 29b that mesh with the center gear 27, the transmission gear member 24 is constructed and the rotation of the moving motor 21 is controlled by the two feed screws 22 and 23. It is designed to communicate. Thereby, the feed screws 22 and 23 are rotationally driven simultaneously by the moving motor 21. These two feed screws 22
, 23 is a female screw member 30a fixed to the movable chassis 9.
, 30b, and both feed screws 22, 23
are simultaneously rotationally driven by the moving motor 21, so that the movable chassis 9 is displaced parallel to the cartridge mounting section 5. Note that the other female screw member 30
b is formed in a half-cut shape so that it can be fixed to the movable chassis 9 by being screwed onto the feed screw 23 when the feed screw 23 is inserted into the movable chassis 9 .

The disc playback device 7 mounted on the movable chassis 9 that is moved relative to the cartridge mounting section 5 in this manner includes a disc rotation mechanism 31 that supports and rotates the disc D, an optical reading mechanism 32, and a disc playback mechanism 31 that supports and rotates the disc D. Rotating mechanism 3
1, and a chucking mechanism 33 for chucking the disc D onto the turntable 31a. Of these, the disk rotation mechanism 31 is a turntable 31a.
and the spindle motor 31b, and the optical reading mechanism 3
Reference numeral 2 comprises a feeding member having an optical pickup 32a and a thread motor 32b, and a control circuit board for controlling this feeding member.

On the other hand, the chucking mechanism 33 includes a turntable 3 at the tip of the chucking arm plate 33a.
The chucking arm plate 33a is formed by attaching a magnetic chucking member 34 corresponding to the chucking arm plate 33a, and the chucking arm plate 33a has a shaft hole 33a1 formed at its base end, and the chucking arm plate 33a is attached to the moving chassis 9 through this shaft hole 33a1. Support shaft 3
5 through the slide boss 36, and an engagement recess 33a2 is formed in a portion remote from the shaft hole 33a1 to engage the engagement pin 37 protruding from the movable chassis 9. A sliding contact piece 3 is provided around the shaft hole 33a1.
3a3 is formed, and this sliding contact piece 33a3 is connected to the cam surface 3 of the cam gear 38 which is pivotally supported by the aforementioned support shaft 35.
It is in sliding contact with 8a. This cam gear 38 is a gear portion 38
A notched gear portion 38b1 is formed on b, and the cam surface 3
A cylindrical cam portion 38c is formed around the cylindrical cam portion 8. In the chucking mechanism 33 formed in this way, the chucking arm plate 33a moves along the cam surface 38a via the sliding contact piece 33a3 when the cam gear 38 rotates, that is, the chucking arm plate 33a moves relative to the disc playback device 7. The chucking member 34 is moved toward and away from the turntable 31a by moving toward and away from the turntable 31a substantially in parallel. This chucking arm plate 33a has a sliding contact piece 33a3 that is connected to the cam gear 3.
It is pressed and biased toward the disc playback device 7 side by a pressing member 39 so as to be in constant sliding contact with the cam surface 38a of No. 8. This pressing member 39 has a proximal end attached to the support shaft 35 side, and includes a pressing piece that abuts approximately the center of the outer surface of the chucking arm plate 33a, and a spring that biases this pressing piece toward the chucking arm plate 33a side. It consists of

Further, the cam gear 38 has the following structure as shown in FIG.
A cam base boss 41 that is fixed to a cam base 40 on a surface opposite to the surface on which the cam surface 38a is formed and is fitted into the center of the cam base 40 is rotatably inserted into the support shaft 35, thereby providing pivotal support to the support shaft 35. and the shaft hole 33a1 of the chucking arm plate 33a mentioned above.
The slide boss 36 fitted to the cam base boss 41
It is fitted so that it can be slidably contacted in the axial direction.

A substantially horseshoe-shaped disk presser 42 is disposed around the turntable 31a of the disk rotation mechanism 31, and the disk presser 42 is turned by a drive member 43 operated by the rotation of the cam gear 38 described above. The chucking member 34 of the chucking arm plate 33a is moved in the axial direction relative to the table 31a, and the disc D is held between the disc D and the chucking member 34 of the chucking arm plate 33a. . Note that this disc holder 42 is biased so as to be constantly moved toward the rear of the turntable 31a, that is, toward the back surface. The drive member 43 of the disc holder 42 is engaged with a roller 44 pivotally supported by the cam base 40 of the cam gear 38, and is overlapped with a disc holder drive lever 45 which is slid by the rotation of the cam gear 38. It is composed of a disk holding rotating arm 46 which is arranged to be raised and lowered by this sliding movement, and a rotating arm holding spring 47 which presses this rotating arm 46 toward the drive lever 45 side. Among these, a guide hole 45a that engages with the roller 44 is provided at the base end of the drive lever 45.
is formed, and a quadrilateral-shaped window hole 45b is formed at the tip. On the other hand, the rotating arm 46 has a base end formed as an engaging part 46a that is engaged with the movable chassis 9 side, and a sliding contact part 46b at the distal end corresponding to the window hole 45b of the drive lever 45.
is formed in a raised shape, and the base end of this rotating arm 46 is pressed against the drive lever 45 by a presser spring 47 fixed to the movable chassis 9 side.
A return spring 48 is suspended between the rotary arm 46 and urged in the return direction, and the window hole 45b always corresponds to the sliding contact portion 46b of the rotary arm 46, that is, the sliding contact portion 46b corresponds to the window hole 45b. It is designed to fit in.

The distal end surface portion 46c of the rotating arm 46 of the drive member 43 configured as described above is opposed to the proximal end surface portion 42a of the disk holder 42, and a pushing member 49 protruding from this proximal end surface portion 42a is interposed. The drive lever 45
When the cam gear 48 rotates, the edge 45b1 of the window hole 45b slides through the roller 44, and the rotating arm 46
In other words, the sliding portion 46b rides on the edge 45b1 of the window hole 45b, and the rotating arm 46 resists the biasing force of the presser spring 47. By starting and moving the distal end part away from the drive lever 45 using the engaging part 46a as a fulcrum, the disc presser 42 is pushed through the pushing member 49 and moves away from the surface position of the turntable 31a. As described above, the disc D is held between the chucking member 34 and the disc D (see FIG. 5). and,
As the cam gear 48 further rotates, the chucking member 34 is moved closer to the turntable 31a via the chucking arm plate 33a, and the drive arm 45 is released from the pressure of the rollers 44 and the return spring 48 is released. It is returned by the biasing force, and the window hole 45b corresponds to the sliding contact portion 46b of the rotating arm 46, and the rotating arm 46 is rotated up and down to release the pressing force of the disc presser 42, and therefore, The disc holder 42 also moves to the rear side of the turntable 31a, and the disc D is brought into contact with the turntable 31a and chucked (see FIG. 6).

Next, the rotational drive mechanism 50 for the cam gear 38 will be explained with reference to FIG. This rotational drive mechanism 50 includes a drive motor 51 attached to the back side of the movable chassis 9.
and a transmission gear group 52 that is pivotally supported from the front side to the back side.
It consists of That is, a worm 53 is attached to the shaft of the drive motor 51, and an intermediate gear 55 is attached to the small gear portion 54a of the worm wheel 54 that meshes with the worm 53.
A switching arm 60 is engaged with the intermediate gear 55, a transmission gear 56 is engaged with the intermediate gear 55, and the switching arm 60 is connected to the shaft 57 of the transmission gear 56 by a plunger 58 via an interlocking arm 59.
is pivotally supported by a boss 61, and this switching arm 60
A switching gear 62 consisting of a front gear 62a and a rear gear 62b is supported by a shaft 63, and the rear gear 62b is meshed with the transmission gear 56. On the other hand, on the front side of the movable chassis 9, a drive gear 64 is supported by a shaft 65 via a boss 66, a drive gear arm 67 is attached to the boss 66, and a drive intermediate gear 68 that meshes with the drive gear 64 is frictionally mounted. This driving intermediate gear 68 is connected to the gear portion 3 of the cam gear 38.
The cam gear 38 is meshed with the notched gear portion 38b1 of the cam gear 8b, so that the rotation of the drive motor is transmitted to the cam gear 38, and the cam gear 38 is driven to rotate.

Further, on the front surface side of the movable chassis 9, as shown in FIG. A shaft cylinder 71 is rotatably fitted into the shaft cylinder 71, a disk drawer drive gear (hereinafter referred to as a drawer drive gear) 72 of the disk transport mechanism 8 is fitted into the shaft cylinder 71, and a gear arm 73 is attached, and this gear arm 73 is pulled out. A drive intermediate gear 74 meshing with the drive gear 72 is frictionally supported. The front gear 62a of the switching gear 62 is engaged with the drawer drive gear 72 by the notch operation of the switching arm 60 described above, and the rotation of the drive motor 51 is transmitted, thereby rotating the drive intermediate gear 74 to drive the disk cartridge described later. The tray is pulled out and rotated.

Further, a hold arm 77 in which a hold pulley 75 for holding the peripheral edge of the disk D is pivotally supported by a shaft pin 76 is rotatably supported on the shaft cylinder 71, and is attached to the side of the cartridge mounting portion 5 by a tension coil spring 78. When the tray of the disk cartridge is pulled out and rotated, the peripheral edge of the disk D in the tray comes into contact with the hold pulley 75, thereby pushing the disk D into the tray. When the tray is pulled out in this state, the hold arm 77 is rotated against the biasing force of the tension coil spring 78, and the disc D is stably transported together with the tray to the disc playback device 7 side. It turns out. This rotation of the hold arm 77 activates the disk withdrawal detection switch Sa, and the withdrawal of the disk D is confirmed.

Then, the disk D is at the chucking position,
That is, while the cam gear 38 is positioned between the turntable 31a and the chucking member 33b of the chucking arm plate 33a, the driving force of the drive motor 51 is transmitted and rotated by the switching operation of the switching arm 60.
As a result, as described above, the chucking arm plate 33a is moved toward the turntable 31a, and the disk presser 42 is moved forward of the turntable 31a, so that the chucking member 33b and the disk D
to hold. Meanwhile, in conjunction with this operation, the hold release plate 79 is pressed by the cylindrical cam surface 38c of the cam gear 38 and rotated outward, and the rotation of the hold release plate 79 causes the hold arm 77 to release the shaft pin 76. The hold pulley 75 is held in a state away from the periphery of the disk D by being pressed and rotated outward through the holding pulley 75 (see FIG. 8). As the cam gear 38 is further rotated in this state, the chucking arm plate 33a is moved to the turntable 3 while holding the disc D together with the disc holder 42 as described above.
1a side, the disc D is taken out from the tray, placed on the turntable 31a, and chucked by the chucking member 33b. In this state, the drive lever 45 of the drive member 43 is attached to the disk presser 42.
When the pressing force is released, the biasing force of the return spring 48 returns and the pressing force of the rotating arm 46 is released, so that the disk presser 42 is released from being pushed up via the pushing member 49. It is moved to the rear of the turntable 31 and away from the disc D. In this way, the disc D is placed on the turntable 31.
By being chucked onto the disc a, the disc reproducing device 7 reproduces the disc. Further, after the reproduction of the disc D is completed, the disc D is housed in a tray by the reverse operation of the above-described operation, and is housed together with this tray in the disc cartridge in the cartridge mounting section 5.

As described above, the mechanical chassis 2, which forms the cartridge mounting portion 5 and includes the movable chassis 9 on which the disc playback device 7 and the disc pull-out mechanism 8 are mounted, has a vibration-proof shape with respect to the outer case 1, that is, Since the mechanical chassis 2 is supported in a swinging manner, it is necessary to hold the mechanical chassis 2 in a fixed state relative to the outer case 1 when not in use and when the disk cartridge is attached to or removed from the cartridge mounting portion 5. The chassis 2 is equipped with a holding mechanism 80. This holding mechanism 80 has lock hooks 82a connected to required parts of both side plates 2a and 2b of the mechanical chassis 2, in this example, the lower front and rear ends and the lower center part, via connecting rods 81. , 82b are pivoted in a rotating state so that their edges abut against the front and rear surfaces and the inner surface of the bottom of the outer casing 1, and the outer casing is mounted in a rotating state at the center of the upper end of both side plates 2a, 2b. Lock hooks 83a and 83b that are engaged with the engagement holes 1b formed on the top surface of the housing 1 are pivoted, and these lock hooks are interlocked and rotated at the same time, and the mechanical chassis 2 is attached to the outer casing 1. The device is configured to lock and hold the device.

That is, among these lock hooks,
Lock hooks 82a1, 82 on one side plate 2a side
a2, 82a3 and 83a are as shown in FIG.
Gear parts 841, 842, 843 centered around the shaft attachment part
and 85, and lock hooks 8 on the front end side and the upper end side.
The gear parts 841 and 85 of 2a1 and 83a are formed directly on the peripheral surface, and the lock hooks 82a on the rear end side and the lower end side
The gear parts 842 and 843 of 2 and 82a3 are formed separately and fixed, and are configured to be interlocked by an interlocking member 86. This interlocking member 86 includes a drive gear 87 that is located near the lock hook 82a1 on the front end side and is pivotally supported, and a rack tooth 88 that meshes with the gear portions 842 and 843 of the lock hooks 82a2 and 82a3 on the rear and lower end sides, respectively.
a, 88b and 88c are formed, and one side plate 2a
a lock link 88 that is slidably engaged in the front-rear direction, and a gear portion 84 of a lock hook 82a3 on the lower end side.
3 and an interlocking link 89 that is formed with rack teeth 89a and 89b that mesh with the gear portion 85 of the lock hook 83a on the upper end side, respectively, and that slides in a direction perpendicular to the lock link 88. Further, a drive intermediate gear 90 is interposed and meshed between the gear portion 841 of the lock hook 82a1 on the front end side and the drive gear 87.

One end of a drive shaft 91 passing through the aforementioned movable chassis 9 is fixed to the drive gear 87, and the other end of this drive shaft 91 is pivotally supported on the other side plate 2b side. , for example, is formed in the shape of a prismatic column with a hexagonal cross section, and is supported on the movable chassis 9 to support the above-mentioned cam gear 3.
A drive transmission gear 92 meshed with the gear portion 38b of No. 8 is fitted so as to be slidable in the axial direction and engaged in the circumferential direction. This drive transmission gear 92 is pressed and supported by a pressing plate 93 together with other gear groups with respect to the movable chassis 9.

The holding mechanism 80 configured as described above is
At all times, each lock hook 82a (82a1, 82a2
, 82a3), 83a and 82b (82b1, 82
b2, 82b3) and 83b are brought into contact with the inner surface of the outer case 1, thereby holding the mechanical chassis 9 in a fixed state. Therefore, the disk cartridge can be stably and reliably attached to and removed from the cartridge mounting portion 5. In the chucking operation of the disk D, as described above, when the cam gear 38 is rotated, the drive transmission gear 92 meshed with the cam gear 38 is rotated, and the drive shaft 91 is also rotated integrally with the cam gear 38. The drive gear 87 is rotated together with the drive gear 91, and this rotation is transmitted to the lock hook 82a1 on the front end side via the drive intermediate gear 90, and the lock link 88 is slid by the meshing of its rack teeth 88a. Due to the movement, the rack teeth 88b and 88c
is transmitted to the lock hooks 82a2 and 82a3 on the rear end side and the lower end side, respectively, and the respective lock hooks are rotated. As the lock hook 82a3 on the lower end side rotates, the interlocking link 89 is slid by the engagement of its rack teeth 89a, and the lock hook 83a on the upper end side is also rotated. The rotation of the lock hooks on the one side 2a side rotated in this way is transmitted to the lock hooks 82b1, 82b2, 82b3 on the other side 2b side via the connecting rod 81,
Moreover, the lock hook 83b on the upper end side has a lock hook 8.
2b3 via the connecting piece, and both sides 2a,
The locking hooks 2b are rotated at the same time, and their respective edges are brought into contact with or disengaged from the corresponding inner surface of the outer casing 1. As a result, the mechanical chassis 2 is supported in a floating state with respect to the outer casing 1, and transmission of vibrations from the outer casing 1 is prevented, and the reproduction of the disc D is performed stably and reliably. become. Further, in conjunction with the return operation after the playback of the disc D is completed, the locking hook is brought into contact with the inner surface of the outer case 1 by an operation opposite to the above-mentioned operation, and the mechanical chassis 2 is fixed to the outer case 1 again. state.

As the disk cartridge to be mounted in the cartridge mounting portion 5 of the mechanical chassis 2 constructed as described above, for example, those shown in FIGS. 13 and 14 are used. The disk cartridge 100 shown in FIGS. 13 and 14 has a case 101, which is composed of a front plate 102 and a back plate 103. A plurality of trays 1 are pivotably mounted and each accommodates a disk D.
04 are housed in a stacked state. Each of the trays 104 has a flat plate shape, and has a disk accommodating portion 105 formed in a concave shape on the back side, an approximately V-shaped concave portion 106 from the front edge side to the center portion, and a disk D Notch 105 where the periphery of
a is formed, and a notch 1 on the circumferential surface of the housing portion 105 is formed.
A disc engaging portion 105b is located at the portion opposite to 05a and at the rear.
is formed. Then, the case 1 of this tray 104
The drawer drive gear 72 of the disk transport mechanism 8 described above is located on the front edge side of the shaft attachment part 104a which is pivotally attached to the shaft 107 on the shaft 107.
A gear portion 108 is formed to which a drive intermediate gear meshes, and a positioning portion 104b is formed on the other side edge facing the shaft mounting portion 104a. The tray 104 formed in this way has a torsion spring 109 suspended between it and the casing 101, so that the tray 104 is always connected to the casing 101.
It is biased so that it is stored inside.

Further, a curved recess 110 is formed in the back plate 103 of the case 101 from the front edge side toward the center.
A lid 111 that closes this recess 110 is pivotally attached to the shaft 107 that pivotally attaches the tray 104, and this lid 111 is formed in a shape that escapes from the recess 111 when opened, and is located on the front edge side of the shaft-attached portion 111a. An engaging portion 112 is formed in the cartridge mounting portion 5 described above, that is, an engaging portion 112 that comes into contact with the cover plate opening protrusion 94 protruding from the one side plate portion 2a1 on the half A side of the mechanical chassis 2. . The lid 111 is always biased by a torsion spring 113 fixed to the back plate 103 at one end so as to close the recess 110 of the back plate 103.
1 is configured such that when the recess 110 is closed, the free end 111b is locked at a connecting rod 114 with the front plate 102 located on the front edge side of the back plate 103.

Further, between the front plate 102 and the back plate 103 of the case 101, there is a disc with which the peripheral edge of the disc D exposed from the notch 105a of the disc accommodating portion 105 comes into contact with the tray 104 stored therein. A presser rod 115 is installed on one side edge of the outer surface of the back plate 103, and a lock lever 1 provided in the cartridge mounting section 5 described above is installed.
Engagement recess 1 engaged with lock pin 11 protruding from 3
16 are formed.

In order to install the disc cartridge 100 constructed as described above into the above-mentioned autochanger player, as shown in FIG. 1
a and attach it to the cartridge attachment part 5 of the mechanical chassis 2. The case 101 is mounted by pushing the case 101 into the cartridge mounting portion 5, which presses the eject lever 19 of the lock/eject mechanism 6 and rotates the lock pin against the biasing force of the tension spring 18. 11 is engaged with the engaging portion 116 by elastic swinging of the lock lever 13 by the torsion spring 15, whereby the case 101 is locked and held within the cartridge mounting portion 5. During the mounting operation of the case 101, the lid 111 is pressed by the engaging portion 112 on the shaft mounting portion 111a abutting and engaging with the lid plate opening protrusion 94 protruding inside the cartridge mounting portion 5. The back plate 103 is rotated against the biasing force of the torsion spring 113.
The recess 110 of is opened (see FIG. 17). In this way, with the disk cartridge case 101 mounted in the cartridge mounting section 5, the gear section 108 of each tray 104 is driven to mesh with the drawer drive gear 72 of the disk transport mechanism 8 mounted on the movable chassis 9. Corresponding to the movement position of the intermediate gear 74, the presence or absence of the disk D is detected when the peripheral edge of the disk D accommodated in each tray 104 comes into contact with the aforementioned disk detection switch Sd through the notch 105a.

In this way, a selected disk D is selected from among the plurality of disks D accommodated in each of the trays 104 stacked in the case 101 of the disk cartridge 100 attached to the cartridge attachment section 5. In order to play the disk, as described above, according to the specification of the disk D, the moving motor 2 of the moving drive mechanism 10 of the moving chassis 9 on which the disk playback device 7 and the disk transport mechanism 8 are mounted is operated.
1 is driven, and rotation is transmitted to the two feed screws 22 and 23 via the transmission gear member 24. This feed screw 22,
23, the moving chassis 9 moves from the standby position to the tray 104 in which the specified disk D is accommodated.
The tray 104 is moved to a position corresponding to the tray 104 and stopped in a state where the drive intermediate gear 74, which is engaged with the drawer drive gear 72, is engaged with the gear portion 108 of the tray 104. In addition, in this state, the switching arm 60 is switched to the drawer drive gear 72 by the OFF operation of the plunger 58, and the switching gear 60 is switched.
The two front gears 62a are engaged with each other.

In this state, the moving motor 21 is stopped and the drive motor 51 is started, and the rotation of the drive motor 51 is transmitted to the drawer drive gear 72 via the transmission gear 56 and the switching gear 62, and is driven. Intermediate gear 74 is rotated. As a result, as shown in FIG. 17, tray 1
04 is the gear portion 10 in mesh with the drive intermediate gear 74
8, the shaft 107 is rotated around the shaft attachment part 104a, pulled out from the storage position in the case 101, and moved to the surface side of the movable chassis 9, and its positioning part 104b is attached to the mechanical chassis 2. It comes into contact with a position regulating surface 2c1 formed on the front plate 2c and is regulated to the tray pull-out position. In this state, the tray 104 is
6 corresponds to the chucking arm plate 33a of the chucking mechanism 33, which does not interfere with the chucking operation.

When the tray 104 is pulled out and rotated, the peripheral edge of the disk D accommodated in the tray 104 comes into contact with the hold pulley 75 as described above, and is thereby pushed into the accommodating portion 105. , is engaged with the disk engaging portion 105b in the storage portion 105, is stably held, and is conveyed integrally with the tray 104 in the chucking direction. In this way, when the disk D is conveyed to a predetermined chucking position, the pressure by the hold pulley 75 is released as described above, and the inner surface of the storage portion 105 and the disk engaging portion 10 are released.
Leave 5b. In this state, the plunger 58 is turned on, the switching arm 60 is switched, and the switching gear 62
The front gear 62a is meshed with the drive gear 64, and the rotation of the drive motor 51 is transmitted to the drive gear 64. This rotation of the drive gear 64 causes the cam gear 38 to move into the drive intermediate gear 6.
The chucking mechanism 33, which is rotatably driven via the rotor 8, is operated, and the disc D is chucked onto the turntable 31a. This chucking operation of the disk D is performed as described above. Further, in conjunction with this chucking operation, the lock hooks 82a, 83a, 82b, 83b of the holding mechanism 80 are rotated as described above, and separated from the inner surface of the outer case 1, and the mechanical chassis 2 is floated relative to the case 1. state.

In this way, the selected disc D is chucked against the turntable 31a with a part of it remaining in the case 101 along with the tray 104, and this chucked disc D is The disk D is rotated by a spindle motor 31b, and the optical pickup 32a of the optical reading mechanism 32 is moved by a feeding member having a thread motor, thereby reading, that is, reproducing the information signal.

Next, after the optical reading mechanism 32 finishes reading, ie, reproducing, the information signal from the disc D, the drive motor 51 is rotated in the opposite direction from the one during the disc chucking operation. This causes the drive gear 64 to rotate in the opposite direction,
The driving intermediate gear 68 is swung through the gear arm 67 and meshes with the notched gear portion 38b1 of the cam gear 38 from the other end, and the cam gear 38 is rotated in the opposite direction. Due to the reverse rotation of the cam gear 38, the chucking mechanism 33 is operated in the opposite direction to the chucking operation, and the disc D is removed from the turntable 31a and accommodated in the tray 104 waiting at the tray pull-out position. The hold pulley 75 is brought into pressure contact with the tray 1 by the hold release plate 79 of the hold arm 77 and the biasing force of the tension coil spring 78.
04 and is held in engagement again. In conjunction with this unchucking and return operation of the disk D to the tray 104, each locking hook of the holding mechanism 80 comes into contact with the inner surface of the outer casing 1 again, and the mechanical chassis 2 is fixed to the outer casing 1. state.

When the disk D is returned to the tray 104 in this way, that is, when the chucking is released, the plunger 58 is turned off and the switching gear 62 is again engaged with the drawer drive gear 72, and this drawer drive gear 72 is not driven. Driven by the motor 51 in reverse rotation, the drive intermediate gear 74
It is also rotated in the opposite direction accordingly. Therefore, tray 1
04 rotates in the opposite direction when the gear part 108 meshes with the driving intermediate gear 74 that rotates in the opposite direction, that is, the case 10 rotates in the opposite direction.
1, and is housed in the case 101, and is held in the above-described state. Thereafter, the motor 51 is stopped, and the moving motor 21 is started to move the moving drive mechanism 1.
0 is in the operating state, and the movable chassis 9 is stopped at a position for pulling out the tray 104 on which the next selected disk D is mounted, or at a standby position close to one side 2a of the mechanical chassis 2. .

As described above, the tray 104 housed in the case 101 of the disk cartridge 100 installed in the cartridge mounting section 5 is pulled out and the disk D stored therein is played. When the disk D stored in the tray 104 located in the lower stage, that is, in the vicinity of the back plate 103, is transported to the playback device 7 side for chucking and playback, a recess 110 is formed in the front side of the back plate 103. Since this is open, the movable chassis 9 can be moved to the tray 104 without the back plate 103 being a hindrance. Therefore, the distance between the back plate 103 and the lowest tray 104 can be minimized, thereby reducing the overall width of the disc cartridge 100, that is, the dimension in the stacked storage direction of the discs D, making it possible to downsize the player. Become.

In this example configured as above,
A drive shaft 91 formed in a rectangular column shape, for example a hexagonal cross section, passes through the movable chassis 9 and is pivotally attached between both side plates 2a and 2b of the mechanical chassis 2. Insert the drive transmission gear 92 so that it is slidable in the axial direction and engaged in the circumferential direction, and
Since a drive gear 87 is fixed to the end of the one side plate 2a, movement is achieved by transmitting drive rotational force from a motor as a drive source to either the drive gear 87 or the drive transmission gear 92. Regardless of the moving position of the chassis 9, it is transmitted to the other gear via the drive shaft 91, that is, both gears 87 and 92 are rotated together at the same time. Therefore, simply by disposing a motor as a drive source in one chassis, the driven mechanism of the other chassis can be driven.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment and can be modified in various ways without departing from the spirit of the present invention. For example, in the case of the above-mentioned embodiment, the disks D are stored in a vertical position and are played back in this vertical position, but the disks are stacked in a horizontal position, that is, in a horizontal position. It can be configured to be stored and recycled.

[0038]

As described above, according to the present invention, by installing the drive source in either the fixed chassis in which the disc is stored or the movable chassis in which the playback device is provided, the driving source can be installed on the other chassis. Since it can also be used as a drive source, the structure of the disc player can be simplified and the weight can be reduced.

[Brief explanation of drawings]

[Figure 1] Partially omitted side view of a disc player

[Figure 2
] Partially omitted plan view

[Figure 3] Perspective view of the moving mechanism

[Figure 4] Cross-sectional view of the drive mechanism

[Figure 5] Cross-sectional view of the chucking mechanism

[Figure 6] Cross-sectional view of the operating state of the chucking mechanism

[Figure 7]
Cross-sectional view of the transport mechanism

[Figure 8] Side view of the drive mechanism

[Fig. 9] Cross-sectional view of a part of the moving mechanism

[Fig. 10] Perspective view of the holding mechanism

FIG. 11: Side view of a portion of the retention mechanism.

[Fig. 12] Plan view of a portion of the holding mechanism

[Fig. 13] Partially omitted side view of the disk cartridge

[Fig. 14] A partially omitted cross-sectional view of a disk cartridge.

FIG. 15 is a cross-sectional view of a portion of a disk cartridge.

[Figure 16] Side view of lock/eject mechanism

[Figure 17] An explanatory diagram of the chucking state of the disk

[Explanation of symbols]

1 Outer casing 1a Insertion port 2 Mechanical chassis 5 Cartridge installation part 6 Lock/eject mechanism 7 Disc playback device 8 Disk transport mechanism 9. Moving chassis 10　Movement drive mechanism 31 Disk rotation mechanism 32 Optical reading mechanism 33 Chucking mechanism 38 Cam gear 50 Rotation drive mechanism 80 Holding mechanism 91 Drive shaft 92 Drive transmission gear 100 disk cartridge 101 Box body 103 Back plate 104 Tray 108 Gear part 110 Recessed part 111 Lid body D Disc

Claims (1)

[Claims] 1. A chassis having a storage section in which discs are stored in a stacked manner, and a movable chassis disposed to be movable in the stacking direction of the discs with respect to the chassis and equipped with a disc playback device. A drive source is provided in either the chassis or the movable chassis, and the drive source transmits the driving force from the drive source between the chassis and the movable chassis regardless of the movement of the movable chassis. A disc player characterized in that a transmission mechanism is provided for transmitting data to the other chassis that is not provided.