JP3057795B2 - Disc auto changer player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc autochanger player capable of exchanging and reproducing a plurality of discs.

[0002]

2. Description of the Related Art In a disk player for reproducing an information signal from a disk on which an information signal is recorded, for example, a digital audio disk, a plurality of disk trays on which the disks are respectively mounted are stowed and stored. A disk cartridge is detachably mounted, and includes a disk changer mechanism for selectively supplying a disk from the disk cartridge to a disk reproducing unit. In a disc player equipped with such a disc changer mechanism, a tray drawer mechanism which forms a part of the disc changer mechanism and is linearly movable between a cartridge mounting section in which a disc cartridge is mounted and a disc reproducing section is provided. Then, the disc tray is pulled out from the disc cartridge to the disc reproducing unit side so that the entire disc placed on the disc tray is located outside the disc cartridge, and is placed on the disc tray placed at the pull-out position. The placed disk is moved up and mounted on the disk reproducing unit, and the reading means reads the information signal from the disk, that is, reproduces the information signal.

[0003]

As described above, the number of disks stored in a disk cartridge mounted on a disk player having a disk changer mechanism is limited. It had to be replaced with another disk cartridge, and the replacement frequency was relatively high. In the replacement of the disk cartridge, the eject operation of the disk cartridge is performed in a state where the disk tray of the previously mounted disk cartridge is pulled out to the reproducing mechanism side, so that not only the disk but also the reproducing mechanism side. There was a risk of damage.

[0004] The present invention has been made in view of such a point,
It is an object of the present invention to provide a disk auto-changer player that detects when a tray is pulled out when ejecting a disk cartridge and detects the tray in a state where the tray is retracted by a reverse operation of a drawer mechanism and then can perform an ejecting operation. Aim.

[0005]

In order to achieve the above object, a disk autochanger player according to the present invention has an opening, and a plurality of trays for storing disks are stacked and supported so as to be capable of moving forward and backward. A disc cartridge that obtains a first position at which each of the plurality of trays advances from the opening and a second position at which the tray advances and retracts; a cartridge mounting portion for mounting the disc cartridge; and a cartridge. A disk reproducing mechanism disposed at a position facing the opening of the mounting portion and close to the opening and supported to be movable in the stacking direction of the tray, and the disk mounted on the cartridge mounting portion; A lock member for locking the cartridge in the mounted state, an operation member for unlocking the lock member, and a lock member and the operation member. A spring member for biasing the locking member in the locking direction and biasing the operating member in the returning direction to release the locking member by pressing the operating member; and a disk mounted on the cartridge mounting portion. The apparatus comprises an ejecting member for pushing out the cartridge in the ejection direction, and an ejecting prevention member which operates in accordance with the advance of the tray from the opening of the disk cartridge in the locked state and prevents the unlocking operation of the locking member.

[0006]

As described above, in the disc autochanger player according to the present invention, the plurality of trays accommodating the discs can be set at the advance position corresponding to the disc reproducing mechanism and the retracted storage position at which the discs are retracted. When the disk cartridge is mounted on the cartridge mounting portion, the disk cartridge is locked by a resilient bias of a spring member by a lock member. By operating the operating member in the locked state, the lock member is unlocked via the spring member, and the disk cartridge is unlocked and ejected from the cartridge mounting portion by the eject member in a push-out manner. At the time of ejection operation by unlocking the disk cartridge, when one tray is in the advanced state from the disk cartridge, the lock member is prevented from unlocking by the eject prevention member, and the locked state with respect to the disk cartridge is maintained. The ejection of the disc cartridge is prevented. Even if the operation member is operated in this state, the spring member between the lock member and the lock member is only elastically deformed, the lock member is not forcibly unlocked, and the disc cartridge is not moved when the tray is in the advanced state. There is no danger of unnecessary ejection.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a case where the present invention is applied to a disc autochanger player.

FIGS. 1 and 2 show an essential part of an example of a disk autochanger player to which the present invention is applied. In the drawing, reference numeral 1 denotes an outer casing, which is small, for example, having a depth of 215 to 215.
230mm, width 80-95mm, height 150-160m
m is formed in the shape of a rectangular parallelepiped,
An insertion slot 1a for a disc cartridge in which a plurality of discs are stored in a stack is formed. A mechanical chassis (hereinafter referred to as a mechanical chassis) 2 on which the respective mechanisms are mounted is supported in the outer casing 1 by an elastic suspension member 3 and a buffer support member 4 in a vibration-proof manner.

The mechanical chassis 2 includes two side plates 2a, 2
b and the front and rear plates 2c, 2d are formed in a quadrilateral frame shape, and a cartridge mounting portion 5 for mounting a disk cartridge corresponding to the insertion opening 1a of the outer casing 1 is formed on the half portion 2A side. A cartridge lock / eject mechanism 6 is provided. On the other half 2B side, a moving chassis 9 on which the disk reproducing device 7 and the disk transport mechanism 8 are mounted is provided so as to be moved by the moving driving mechanism 10 with respect to the cartridge mounting portion 5 in the disk stacking direction. ing.

A lock / ejection mechanism 6 provided in the cartridge mounting portion 5 of the mechanical chassis 2 has a lock pin 11 which is engaged with a disk cartridge, and is provided with a lock pin 11.
At the center, the cartridge mounting portion 5 is formed by the shaft pin 12.
Outer surface, ie, one side plate portion 2 on the half portion 2A side
is rotatably journalled on the outer surface of a _1, a lock lever 13 which the tip portion 13a is extended to the other half 2B direction, guide pins 14a, 1 in the lock lever 13 on the same plane
A lock release operation lever (hereinafter referred to as an operation lever) 1 that is slidably disposed along 4b and is connected to a rear end portion 13b of the lock lever 13 via a torsion spring 15.
6 and both side plate portions 2a ₁ , 2b _{1 on} the inner side of the half portion 2A at the base end portion.
An eject lever 19, which is axially attached to a shaft 17 and is constantly biased and rotated in a direction to push out the disk cartridge by a tension spring 18;
The front end portion 13a is pivotally mounted between the two side plates 2a and 2b corresponding to one side edge of the front end portion 13a. The lock lever 13 is in contact with the engagement pin 13c, and prevents the lock lever 13 from rotating. The cartridge mounting portion 5 is provided with an eject switch Se corresponding to the operation lever 16 and a disk detection switch Sd for detecting the storage state of the disk D in the disk cartridge.

The moving drive mechanism 10 of the moving chassis 9
Includes a movement motor 21 attached to one side plate portions 2a ₂ of the other half 2B side of the mechanical chassis 2, screwed in correspondence with the diagonal to the movable chassis 9, and a side plate portion 2a ₂ and which and two feed screws 22, 23 which are pivotally supported straddling the corresponding other side plate portion 2b _2, a gear member 24 for transmitting the rotation of the movement motor 21 to the feed screw 22 and 23 of the two It is composed of

Namely, as shown in FIG. 3, the worm 25 is attached to the shaft of the moving motor 21, while each of the ends of one side plate portion 2a ₂ side of two of the feed screw 22 driven Gears 22a and 23a are fixed. Then, the worm wheel 26 which constitutes the worm gear and worm 25 meshes on one side plate portion 2a ₂
A large-diameter center gear 27 that meshes with the small-diameter gear 26a of the worm wheel 26; and a large-diameter tooth portion that is located between the center gear 27 and the drive gears 22a and 23a and meshes with the drive gears 22a and 23a. The transmission gears 28 and 29, which are formed by small diameter teeth 28b and 29b meshing with the center gear 27, are attached to the transmission gears 28 to form a transmission gear member 24 so that the rotation of the moving motor 21 is controlled by two feed screws. 22 and 23.
Thus, the feed screws 22 and 23 are simultaneously driven to rotate by the moving motor 21. These two feed screws 2
Reference numerals 2 and 23 denote female screw members 30 fixed to the moving chassis 9.
a, 30b.
The rotation chassis 3 is simultaneously driven to rotate by the movement motor 21, so that the movement chassis 9 is displaced and moved in parallel with the cartridge mounting portion 5. The other female screw member 3
Reference numeral 0b is formed in a semi-partially cut shape so that the feed screw 23 can be screwed to the feed screw 23 and fixed to the move chassis 9 with the feed screw 23 inserted through the move chassis 9.

The disk reproducing device 7 mounted on the movable chassis 9 moved with respect to the cartridge mounting portion 5 includes a disk rotating mechanism 31 for supporting and rotating the disk D, an optical reading mechanism 32, Rotation mechanism 3
A chucking mechanism 33 for chucking the disk D with respect to one turntable 31a. The disk rotating mechanism 31 is a turntable 31a.
From the spindle motor 31b and the optical reading mechanism 3
Reference numeral 2 denotes a feed member having an optical pickup 32a and a thread motor 32b, and a control circuit board for controlling the feed member.

On the other hand, the chucking mechanism 33 has a turntable 3 at the tip of the chucking arm plate 33a.
1a is formed by attaching a magnet type chucking member 34 corresponding to the chucking arm plate 33a is formed shaft hole 33a ₁ in the proximal portion, planting the shaft hole 33a ₁ to the mobile chassis 9 The support shaft 35 is inserted through the slide boss 36 and the shaft hole 3 is inserted.
At a site distant from 3a ₁ formed an engaging recess 33a ₂ is engaged with the engagement pin 37 protruding from the movable chassis 9, also Surisehhen 33a ₃ in the peripheral portion of the shaft hole 33a ₁ supporting shaft 3 but is formed, as described above the sliding piece 33a ₃
5 is slidably in contact with a cam surface 38a of a cam gear 38 which is pivotally supported by the cam gear 38. The cam gear 38 is notched gear portion 38b ₁ to the gear portion 38b is formed, also the cylindrical cam portion 38c is formed in the peripheral portion of the cam surface 38. Thus chucking mechanism 33 to be formed by the chucking arm plate 33a is rotated in the cam gear 38, moves following the cam surface 38a via the Surisehhen 33a _3, i.e., the disk reproducing apparatus 7 The chucking member 34 is moved toward and away from the turntable 31a substantially in parallel. This chucking arm plate 3
3a is are pressed biased so the disk reproducing apparatus 7 side by the pressing member 39 as Surisehhen 33a ₃ is in sliding contact with the constantly pressed shape to the cam surface 38a of the cam gear 38. The pressing member 39 has a base end portion attached to the support shaft 35 side, and a pressing piece that comes into contact with a substantially central portion on the outer surface side of the chucking arm plate 33a, and a spring that biases the pressing piece toward the chucking arm plate 33a side. It is composed of

The cam gear 38 is, as shown in FIG.
A cam base boss 41 fixed to the cam base 40 at a surface opposite to the surface on which the cam surface 38 a is formed, and rotatably fitted to the support shaft 35 with a cam base boss 41 fitted at the center of the cam base 40, supports the support shaft 35. Also, the shaft hole 33a _{1 of} the chucking arm plate 33a described above is provided.
The slide boss 36 is fitted to the cam base boss 41 so as to be slidable in the axial direction.

A substantially horseshoe-shaped disk holder 42 is disposed around the turntable 31a of the disk rotating mechanism 31. The disk holder 42 is turned by a driving member 43 operated by the rotation of the cam gear 38 described above. The disc D is sandwiched by the chucking member 34 of the chucking arm plate 33a which is moved in the axial direction with respect to the table 31a so as to be in contact with the turntable 31a and to be separated therefrom. . The disc holder 42 is biased so as to be constantly moved behind the turntable 31a, that is, in the direction of the back surface. The driving member 43 of the disc holding member 42 is engaged with a roller 44 supported by the cam base 40 of the cam gear 38 so that the driving member 43 overlaps with the disc holding driving lever 45 slid by the rotation of the cam gear 38. The rotating arm 46 is provided with a disk pressing rotary arm 46 that is raised and lowered by the sliding operation, and a rotary arm pressing spring 47 that presses the rotary arm 46 toward the drive lever 45. Of these, a guide hole 45 a that engages with the roller 44 is provided at the base end of the drive lever 45.
Is formed, and a quadrangular window hole 45b is formed at the tip. On the other hand, the rotating arm 46 is formed as an engaging portion 46a whose base end is engaged with the moving chassis 9 side, and has a sliding contact portion 46b at the distal end corresponding to the window hole 45b of the drive lever 45.
The pivot arm 46 is pressed against the drive lever 45 by a pressing spring 47 fixed at the base end to the moving chassis 9 side.
The return spring 48 is suspended between the rotary arm 46 and the return arm 48 and is urged in the return direction. 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 made to penetrate.

The distal end portion 46c of the rotating arm 46 of the driving member 43 thus configured faces the proximal end portion 42a of the disc holder 42, and a pushing member 49 projecting from the proximal end portion 42a is interposed. Drive lever 45
There will be the sliding through the rollers 44 by the rotation of the cam gear 38 is edge 45b ₁ of the window hole 45b abuts against the slide contact portion 46b of the rotating arm 46, i.e., the sliding contact portion 46b is a window hole supposed to ride on the edges 45b ₁ of 45b, pivot arm 46 is pressing tip drive lever 45 engaging portion 46a as a fulcrum against the biasing force of the spring 47
The disc holder 42 is pushed through the pushing member 49 and is moved forward away from the surface position of the turntable 31a by being raised and turned away from the chucking member 34, as described above. As a result, the disk D is held (see FIG. 5). Then, as the cam gear 38 further rotates, the chucking member 34 is moved via the chucking arm plate 33a so as to approach the turntable 31a.
The drive arm 45 is released from the pressing by the roller 44 and is returned by the urging force of the return spring 48, so that the window hole 45b corresponds to the sliding contact portion 46b of the rotating arm 46. The disc holder 42 is moved to release the pushing of the disc holder 42.
The disk 2 also moves to the rear side of the turntable 31a, and the disk D is chucked in contact with the turntable 31a (see FIG. 6).

Next, the rotation drive mechanism 50 of the cam gear 38 will be described with reference to FIG. The rotation drive mechanism 50 includes a drive motor 51 mounted on the back side of the moving chassis 9.
And transmission gear group 52 supported from the front side to the back side
Consists of That is, the worm 53 is attached to the shaft of the drive motor 51, and the intermediate gear 55 is attached to the small gear portion 54 a of the worm wheel 54 that meshes with the worm 53.
The transmission arm 56 is meshed with the intermediate gear 55, and the switching arm 60 is switched by the plunger 58 to the shaft 57 of the transmission gear 56 via the interlocking arm 59.
Are pivotally supported by a boss 61, and the switching arm 60
A switching gear 62 composed 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 moving chassis 9, a drive gear 64 is supported by a shaft 65 via a boss 66, and a drive gear arm 67 is attached to the boss 66, and a drive intermediate gear 68 meshing with the drive gear 64 is mounted on a friction shaft. and notched by meshed with the gear portion 38b ₁ of the gear portion 38b of the drive intermediate gear 68 cam gear 38, is adapted to transmit the rotation of the driving motor is driven to rotate in the cam gear 38.

On the front side of the movable chassis 9, as shown in FIG. 7, a boss 70 is inserted into one of the aforementioned feed screws 22 via a guide metal 69, and the boss 70 is inserted into the boss 70. The shaft cylinder 71 is rotatably fitted,
A disk pull-out drive gear (hereinafter referred to as a pull-out drive gear) 72 of the disk transport mechanism 8 is fitted to the shaft cylinder 71, and a gear arm 73 is attached to the shaft arm 71.
A drive intermediate gear 74 meshing with the pull-out drive gear 72 is supported by a friction shaft. This drawer drive gear 72
The notch operation of the switching arm 60 described above engages the front gear 62a of the switching gear 62 to transmit the rotation of the driving motor 51, thereby rotating the driving intermediate gear 74 and pulling out the disk cartridge tray described later. It is made to move.

A hold arm 77, which supports a hold pulley 75 for holding the periphery of the disk D by a shaft pin 76, is rotatably supported on the shaft cylinder 71, and is pulled by a coil spring 78 on the cartridge mounting portion 5 side. (See FIG. 1), and 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, whereby the disk D is pushed into the tray. When the tray is pulled out in this state, the hold arm 77 is turned against the biasing force of the tension coil spring 78, and the disc D is stably transported together with the tray to the disc reproducing apparatus 7 side. Will be. The disc withdrawal detection switch Sa is operated by the rotation of the hold arm 77, and the withdrawal of the disc D is confirmed.

Then, the disk D is in the chucking position,
That is, as shown in FIGS. 5, 6, and 8, the cam gear 3 is positioned between the turntable 31a and the chucking member 34 of the chucking arm plate 33a.
8 is rotated by transmitting the driving force of the driving motor 51 by the switching operation of the switching arm 60, whereby the chucking arm plate 33a is moved in the direction of the turntable 31a and the disc holder 42 is The disk D is moved to the front of 31a and is held between the chucking member 34 and the disk D. On the other hand, in conjunction with this operation, the hold release plate 79 is pressed by the cylindrical cam surface 38c of the cam gear 38 and pivots outward, and by the rotation of the hold release plate 79, the hold arm 77
Is pushed and rotated outward via the shaft pin 76, and the hold pulley 75 is held away from the peripheral edge of the disk D (see FIG. 17). When the cam gear 38 is further rotated in this state, the chucking arm plate 33a is moved to the turntable 31a side while holding the disk D together with the disk holder 42 as described above, and the disk D is taken out of the tray and turned. It is placed on top and chucked by the chucking member 34. In this state, the disc holder 42 is
Is released by the biasing force of the return spring 48 and the pressing of the rotating arm 46 is released.
The disc holder 42 is released from being pushed up through the pushing member 49 and is moved to the rear of the turntable 31 to be separated from the disc D (see FIG. 6). In this manner, the disc D is chucked on the turntable 31a, so that the disc is reproduced by the disc reproducing device 7. 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 the tray in a disc cartridge in the cartridge mounting section 5.

As described above, the mechanical chassis 2 having the cartridge mounting portion 5 and the moving chassis 9 on which the disk reproducing device 7 and the disk pull-out mechanism 8 are mounted, is vibration-proof to the outer casing 1, that is, When the disc cartridge is not used, and when the disc cartridge is attached to or detached from the cartridge mounting portion 5, the mechanical chassis 2 needs to be held in a fixed state with respect to the outer casing body 1. The holding mechanism 80 is provided on the chassis 2. The holding mechanism 80 is provided with lock hooks 82 a connected to required portions of both side plates 2 a and 2 b of the mechanical chassis 2, in this example, lower front and rear end portions and a lower end center portion via a connecting rod 81. , 82b in the rotating state and the edge is the outer casing 1
It is axially mounted so as to be in contact with the front and rear surfaces and the inner surface side of the bottom surface, and in the center of the upper end of both side plates 2a and 2b, is engaged with an engagement hole 1b formed in the upper surface of the outer casing 1 in a rotating state. The lock hooks 83a and 83b to be engaged are mounted on the shaft, and these lock hooks are simultaneously rotated in conjunction with each other.
Is locked to the outer casing 1.

That is, of these lock hooks,
Lock hooks 82a ₁ , 82a on one side plate 2a side
₂ , 82a ₃ and 83a are gear parts 84 ₁ , 84 ₂ , 84 ₃ and 85 centered on the shaft attachment part, as shown in FIG.
The gear portions 84 ₁ and 85 of the lock hooks 82 a ₁ and 83 a on the front end side and the upper end side are formed directly on the peripheral surface,
The rear side and lower side locking hook 82a ₂ and 82a ₃
Gear portion 84 ₂ and 84 ₃ of is made to be interlocked operation by the interlocking member 86 is fixed is formed separately. This interlocking member 86 is provided with a lock hook 82a ₁ on the front end side.
The locking hook 82a ₂ and the gear unit 8 of 82a ₃ of located near axially supported by the drive gear 87 and the rear end and the lower end of the
4 ₂ and 84 ₃ in which it meshes with the rack teeth 88a, 8
8b and 88c are formed, and the lock link 88 is slidably engaged with the one side plate 2a in the front-rear direction.
And rack teeth 89a and 89b meshing with the gear portion 84 _{3 of} the lower lock hook 82a ₃ and the gear portion 85 of the upper lock hook 83a, respectively, are slid in the direction perpendicular to the lock link 88. And an interlocking link 89. Also, the lock hook 82 on the front end side
Between the gear portion 84 ₁ and the drive gear 87 of a ₁ drive intermediate gear 90 is interposed mesh (see FIG. 11).

One end of a drive shaft 91 that penetrates the moving chassis 9 is fixed to the drive gear 87, and the other end of the drive shaft 91 is supported by the other side plate 2b. The cam gear 3 is formed, for example, in the shape of a prism having a hexagonal cross section and is supported on the moving chassis 9.
A drive transmission gear 92 meshed with the eighth gear portion 38b is fitted so as to be slidable in the axial direction and engaged in the circumferential direction. The drive transmission gear 92 is supported by the moving chassis 9 by being pressed by a pressing plate 93 together with other gear groups.

The holding mechanism 80 configured as described above
At all times, each locking hook _{82a (82a 1, 82a 2,} 8
2a ₃ ), 83a and 82b (82b ₁ , 82b ₂ , 8
2b ₃ ) and 83b are in contact with the inner surface side of the outer casing 1 so that the mechanical chassis 9 is held in a fixed state. Therefore, the disk cartridge can be stably and reliably attached to and detached 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 9 is integrally formed therewith.
1 is also rotated, the drive gear 87 integrally with the drive shaft 91 is rotated together with the rotation is transmitted to the locking hook 82a ₁ of the front side via the drive intermediate gear 90, the rack teeth lock link 88 is 88a is slid by the engagement,
Each locking hook is transmitted by the sliding through the rack teeth 88b and 88c in the locking hook 82a ₂ and 82a ₃ of the rear end and the lower end is rotated. Rotation of the locking hook 82a ₃ of the lower side, the interlocking link 89 is slid by the engagement of the rack teeth 89a, is also rotated upper end of the locking hook 83a. The rotation of the lock hook on the side surface 2a thus rotated is performed by the connecting rod 8.
1 and the lock hooks 82b ₁ , 82 on the other side 2b side
b ₂ , 82 b _3, and the lock hook 83 b on the upper end side is transmitted from the lock hook 82 b ₃ via a connecting piece, so that the lock hooks on both side surfaces 2 a, 2 b are simultaneously rotated to each end edge. Abuts against or engages with 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, so that transmission of vibration from the outer casing 1 is prevented, and the reproduction of the disk D is performed stably and reliably. become. Further, in conjunction with the return operation after the reproduction of the disc D is completed, the lock hook is brought into contact with the inner surface of the outer casing 1 and the mechanical chassis 2 is fixed to the outer casing 1 again by the reverse operation to the above-described operation. State.

As the disk cartridge to be mounted on the cartridge mounting portion 5 of the mechanical chassis 2 configured as described above, for example, those shown in FIGS. 13 and 14 are used. The disc cartridge 100 shown in FIGS. 13 and 14 has a casing 101, which is composed of a front plate 102 and a back plate 103. A plurality of trays 1 which are pivotally mounted and each of which holds a disk D
04 are stored in a stacked state. Each of the trays 104 has a flat plate-like shape, a disk accommodation portion 105 is formed in a concave shape on the rear surface side, a substantially V-shaped concave portion 106 is formed from a front edge side to a center portion, and a disk D is formed in a part of one side. Notch 105 exposing the periphery of
a is formed, and the notch 1 on the peripheral surface of the accommodation portion 105 is formed.
05a and a disk engaging portion 105b
Are formed. And the box 1 of this tray 104
The pull-out drive gear 72 of the disk transport mechanism 8 described above is mounted on the front edge side of the shaft mounting portion 104a which is mounted on the shaft 01 by the shaft 107.
A gear portion 108 meshed with a driving intermediate gear meshing with the shaft portion 104 is formed, and a positioning portion 104b is formed on the other side edge portion facing the shaft attachment portion 104a. The tray 104 thus formed has a torsion spring 109 suspended between the tray 104 and the casing 101, and the
It is biased to be housed within.

Further, a curved concave portion 110 is formed on the back plate 103 of the casing 101 from the front edge side toward the center.
A cover 111 for closing the recess 110 is mounted on a shaft 107 on which the tray 104 is mounted. The cover 111 is formed in a shape that escapes from the recess 111 when the tray 104 is opened. , the inner cartridge mounting portion 5 described above, that is, the engaging portion 112 abuts against the cover plate opening projections 94 projecting from the one side plate portion 2a ₁ of the half portion a side of the mechanical chassis 2 is formed I have. One end of the cover 111 is always biased by a torsion spring 113 fixed to the back plate 103 so as to close the recess 110 of the back plate 103.
Reference numeral 1 denotes a state in which the free end portion 111b is locked by a connecting rod 114 with the front surface plate 102 located on the front edge side of the rear surface plate 103 when the concave portion 110 is closed.

Also, between the front plate 102 and the back plate 103 of the casing 101, a disk is brought into contact with the peripheral edge of the disk D exposed from the notch 105a of the disk storage portion 105 in a state where the tray 104 is stored. A holding lever 115 is provided. A lock lever 1 provided on the cartridge mounting portion 5 is provided on one side edge of the outer surface of the back plate 103.
Engaging recess 1 engaged with lock pin 11 protruding from projection 3
16 are formed.

In order to mount the disk cartridge 100 having the above-described configuration on the above-described auto-changer player, as shown in FIG. 16, the housing 101 is inserted from one side 101a of the player outer housing 1 into the insertion opening. 1
a and is mounted on the cartridge mounting portion 5 of the mechanical chassis 2. The housing 101 is mounted by pushing the housing 101 into the cartridge mounting portion 5 so that the eject lever 19 of the lock / ejection mechanism 6 is pressed, and the housing 101 is turned upside down against the biasing force of the tension spring 18 and the lock pin is rotated. 11 is engaged with the engaging portion 116 by the resilient swing of the lock lever 13 by the torsion spring 15, whereby the housing 101 is locked and held in the cartridge mounting portion 5. During the mounting operation of the housing 101, the lid 111 is pressed by the engagement portion 112 on the side of the shaft mounting portion 111 a abuttingly engaging with the lid plate opening protrusion 94 protruding into the cartridge mounting portion 5. And the torsion spring 113 is rotated against the biasing force of the
Is released (see FIG. 17). In this manner, the gear portion 108 of each tray 104 is engaged with the pull-out drive gear 72 of the disk transport mechanism 8 mounted on the moving chassis 9 in a state where the housing 101 of the disk cartridge is mounted on the cartridge mounting portion 5. The presence or absence of the disk D is detected when the peripheral edge of the disk D accommodated in the tray 104 corresponds to the moving position of the intermediate gear 74 and contacts the above-described disk detection switch Sd through the notch 105a.

As described above, a selected one of the plurality of disks D stored in the trays 104 stacked in the housing 101 of the disk cartridge 100 mounted on the cartridge mounting portion 5 is selected. When reproducing, the moving motor 2 of the moving drive mechanism 10 of the moving chassis 9 on which the disk reproducing device 7 and the disk transport mechanism 8 are mounted by designating the disk D as described above.
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,
With the rotation of 23, the moving chassis 9 moves from the standby position to correspond to the designated disk D, that is, the tray 104 in which the disk transport mechanism 8 accommodates the designated disk D.
And the drive intermediate gear 74 meshed with the pull-out drive gear 72 is stopped by the gear portion 108 of the tray 104 meshed with the gear portion 108 of the tray 104. In this state, the switching arm 60 is switched to the drawer driving gear 72 by the off operation of the plunger 58, and the switching gear 6
The second front gear 62a is engaged.

In this state, the moving motor 21 is stopped and the drive motor 51 is started. The rotation of the drive motor 51 is transmitted to the pull-out drive gear 72 via the transmission gear 56 and the switching gear 62 to drive the drive. The intermediate gear 74 is rotated. As a result, as shown in FIG.
04 is the gear portion 10 in mesh with the driving intermediate gear 74.
8, the shaft 107 is rotated about a shaft attachment portion 104 a by the shaft 107, pulled out from the storage position in the housing 101, moved to the front side of the moving chassis 9, and the positioning portion 104 b of the mechanical chassis 2 is moved. position is restricted to the tray drawn position in contact with the position restricting surface 2c ₁ which is formed on the front plate 2c. In this state, the tray 104 is
Corresponds to the chucking arm plate 33a of the chucking mechanism 33, and does not hinder the chucking operation.

When the tray 104 is pulled out and rotated as described above, the periphery of the disk D accommodated in the tray 104 comes into contact with the hold pulley 75 as described above, whereby the disk D is pushed into the accommodation portion 105. In the housing portion 105, the disk engaging portion 105b is engaged and stably held in the disk engaging portion 105b, and is transported integrally with the tray 104 in the chucking direction. In this manner, when the disc D is conveyed to the predetermined chucking position and the pressing by the hold pulley 75 is released as described above, the inner surface of the accommodation portion 105 and the disc engaging portion 10 are released.
Move away from 5b. In this state, the plunger 58 is turned on, the switching arm 60 is switched, and the switching gear 62 is switched.
Is meshed with the drive gear 64, and the rotation of the drive motor 51 is transmitted to the drive gear 64. The rotation of the drive gear 64 causes the cam gear 38 to move the drive intermediate gear 6.
The chucking mechanism 33, which is rotationally driven through the disk drive 8, is operated, and the disk D is chucked to the turntable 31a. The chucking operation of the disk D is performed as described above. In conjunction with this chucking operation, the lock hooks 82a, 83a and 82b, 83b of the holding mechanism 80 are rotated as described above to separate from the inner surface of the outer casing 1, and the mechanical chassis 2 floats with respect to the casing 1. State.

In this manner, the selected disk D is chucked to the turntable 31a with the tray 104 and a part thereof remaining in the casing 101. 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 feed member having a thread motor to read an information signal, that is, to reproduce an information signal.

Next, after the reading of the information signal from the disk D by the optical reading mechanism 32, that is, after the reproduction is completed, the drive motor 51 is rotated in the reverse direction to that during the disk chucking operation. This causes the drive gear 64 to rotate in the reverse direction,
Drive intermediate gear 68 meshes from the other end in the cut gear portion 38b ₁ of the cam gear 38 is swung through the gear arm 67, the cam gear 38 is rotated in the opposite direction. By the reverse rotation of the cam gear 38, the chucking mechanism 33 is operated in the reverse direction to the chucking operation, so that the disc D is detached from the turntable 31a and is accommodated in the tray 104 waiting at the tray pull-out position. D
The hold pulley 75 is pressed against the hold arm 77 by the hold release plate 79 and pressed by the biasing force of the pulling coil spring 78, and the disc D is placed on the tray 10.
4 is again held in the engaged state. In conjunction with the release of the chucking of the disk D and the returning operation to the tray 104, the lock hooks of the holding mechanism 80 again contact the inner surface of the outer casing 1, and the mechanical chassis 2 is fixed to the outer casing 1. State.

In this state, the disc D is returned to the tray 104, that is, the plunger 58 is turned off by releasing the chucking, the switching gear 62 is meshed with the drawer drive gear 72 again, and the drawer drive gear 72 is driven. The driving intermediate gear 74 is driven to rotate in the reverse direction by the motor 51.
Is also rotated in the opposite direction. So, tray 1
04 rotates in the reverse direction by the gear portion 108 meshing with the driving intermediate gear 74 that is rotated in the reverse direction,
1 and is stored in the housing 101 and 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 activated, and the moving chassis 9 is stopped at a position for pulling out the tray 104 on which the next selected disk D is placed, or at a standby position close to one side surface 2a of the mechanical chassis 2. .

As described above, the tray 104 stored in the housing 101 of the disk cartridge 100 mounted on the cartridge mounting portion 5 is pulled out, and the disk D stored in the tray 104 is reproduced. When the disc D stored in the lower stage, that is, the tray 104 located close to the back plate 103 is conveyed to the reproducing device 7 and chucking and reproduction are performed, a concave portion 110 is formed on the front side of the back plate 103. By opening this, the movable chassis 9 can be moved correspondingly to the tray 104 without the back plate 103 hindering. Accordingly, the distance between the back plate 103 and the lowermost tray 104 can be minimized, whereby the overall width of the disc cartridge 100, that is, the dimension of the disc D in the stacking direction can be reduced, and the player can be downsized. Become.

In this example configured as described above,
The disc cartridge 100 mounted on the cartridge mounting section 5 is configured such that a plurality of trays 104 accommodating the disks D are rotatably stacked in a housing 101 and pulled out in a rotating state. When the disk cartridge 100 is mounted on the cartridge mounting section 5, the disk cartridge 100 is locked by the lock lever 13 of the lock / eject mechanism 6. The moving chassis 9 on which the disk reproducing device 7 and the disk transport mechanism 8 are mounted is moved by the moving driving mechanism 10 in the stacking direction of the tray 104 with respect to the disk cartridge 100. The moving chassis 9 is moved to make the disk transport mechanism 8 correspond to the tray 104 in which the desired disk D is stored, and the tray 104 is rotated via the gear portion 108 meshed with the drive intermediate gear 74 by the rotation of the drawer drive gear 72. Then, the disc D is transported to the disc rotating mechanism 31 side of the disc reproducing device 7. During this transfer, a hold pulley 75 pivotally supported by a hold arm 77 abuts and holds the circumference of the disk D. In this state, the hold arm 77 is turned, and the disk pull-out detection switch Sa is operated by this turn. Is pulled out of the disk D.

Further, the rotation of the tray 104 causes the side edge of the gear portion 108 to press and rotate the ejection prevention plate 20, whereby the ejection prevention plate 20 is engaged with the engagement protrusion protruding from the tip of the lock lever 13. The rotation of the lock lever 13 corresponding to the pin 13c, that is, the rotation of the disk cartridge 100 in the unlocking direction with respect to the housing 101 is prevented. This makes it impossible to eject the disk cartridge 100 with the tray 104 pulled out. Therefore, the disk cartridge 100
When the tray 104 is returned into the housing 101, this is detected by the pull-out detection switch Sa, and the gear portion 108
Is released from the lock lever 13, and the lock lever 13 becomes rotatable and ejects.

[0039]

As described above, according to the present invention, a disk cartridge in which a plurality of trays accommodating a disk can take an advanced position corresponding to a disk reproducing mechanism and a retracted storage position in which the tray is retracted. The lock member is locked by the elastic biasing force of the spring member by the lock member when mounted on the cartridge mounting portion. By operating the operating member in the locked state, the lock member is unlocked via the spring member, and the disk cartridge is unlocked and ejected from the cartridge mounting portion by the eject member in a push-out manner. At the time of ejection operation by unlocking the disk cartridge, when one tray is in the advanced state from the disk cartridge, the lock member is prevented from unlocking by the eject prevention member, and the locked state with respect to the disk cartridge is maintained. Prevents ejection of disc cartridges. Even if the operation member is operated in this state, the spring member between the lock member and the lock member is only elastically deformed, the lock member is not forcibly unlocked, and the disc cartridge is not moved when the tray is in the advanced state. There is no danger of unnecessary ejection. Therefore, the eject operation cannot be performed in the state where the plurality of trays accommodating the disk are respectively pulled out, and the eject operation can be performed only after the tray is housed in the disk cartridge. There is no risk of damaging not only the disc but also the playback mechanism, and it can always be used safely. According to the present invention, the lock / eject mechanism for the cartridge mounting portion of the disk cartridge has a small number of constituent members, has a simple structure, is easy to assemble, and has effects such as a reduction in cost. .

[Brief description of the drawings]

FIG. 1 is a side view of a disc player with a part omitted;

FIG. 2 is a plan view partially omitted.

FIG. 3 is a perspective view of a moving mechanism.

FIG. 4 is a sectional view of a driving mechanism.

FIG. 5 is a sectional view of a chucking mechanism.

FIG. 6 is a sectional view of the operating state of the chucking mechanism.

FIG. 7 is a sectional view of a transport mechanism.

FIG. 8 is a side view of a driving mechanism.

FIG. 9 is a sectional view of a part of the moving mechanism.

FIG. 10 is a perspective view of a holding mechanism.

FIG. 11 is a side view of a part of the holding mechanism.

FIG. 12 is a plan view of a part of the holding mechanism.

FIG. 13 is a side view of the disk cartridge with a part omitted.

FIG. 14 is a cross-sectional view of the disk cartridge with a part omitted;

FIG. 15 is a sectional view of a part of the disk cartridge.

FIG. 16 is a side view of the lock / eject mechanism.

FIG. 17 is an explanatory diagram of a chucking state of a disk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer casing 1a Insertion opening 2 Mechanical chassis 5 Cartridge mounting part 6 Lock / ejection mechanism 7 Disk reproducing device 8 Disk transport mechanism 9 Moving chassis 10 Moving drive mechanism 31 Disk rotating mechanism 32 Optical reading mechanism 33 Chucking mechanism 38 Cam gear 50 Rotation Driving mechanism 80 Holding mechanism 91 Drive shaft 92 Drive transmission gear 100 Disk cartridge 101 Box 103 Back plate 104 Tray 108 Gear section 110 Concave section 111 Cover D Disk

Claims (1)

(57) [Claims] An opening is provided, and a plurality of trays accommodating a disk are stored and supported so as to be able to advance and retreat in a stacked manner.
A disk cartridge capable of taking a first position where each of the plurality of trays advances from the opening, and a second position where the plurality of trays are retracted, and a cartridge mounting portion for mounting the disk cartridge. A disc reproducing mechanism disposed at a position facing the opening of the cartridge mounting portion and close to the opening and supported so as to be movable in the stacking direction of the tray; A lock member for locking the mounted disk cartridge in a mounted state, an operation member for unlocking the lock member, and an operation member connected between the lock member and the operation member; The operating member is biased in the locking direction and the operating member is biased in the returning direction, and the locking member is locked by pressing the operating member. A spring member for releasing operation, an ejecting member for pushing out the disk cartridge mounted on the cartridge mounting portion in a discharge direction, and the lock operating in accordance with the advancement of the tray from an opening of the disk cartridge in a locked state. A disc autochanger player comprising an eject prevention member for preventing an unlocking operation of a member.