JP2008071437A - Disk housing type disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk housing type disk device in which a disk can be clamped surely. <P>SOLUTION: Disk pressing members 201, 201 are moved to a projection position as a drive unit goes upward. A disk D is pressed to the turntable 82 direction by the disk pressing members 201, 201 at a slightly more outside than its center hole Da, the center hole Da is guided so as to coincide with a center convex part 82b of the turntable 82, and the disk D is moved to the clamp position in the turntable 82. And a clamp mechanism provided on the turntable 82 is operated, and the disk D is clamped to the turntable 82 surely. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a disk storage type disk device that can store a plurality of disks in a housing and is driven by selecting a disk.

  Patent Document 1 below discloses a disk storage type disk device in which a plurality of disks are stored inside a housing.

  In this disk storage type disk device, a plurality of disks are stored in the stocker, and the stored disks are regulated at the storage position by a disk position regulating means having a regulation shaft.

  When the disc is reproduced, the restriction shaft is moved to the retracted position, and the disc is transferred to the reproduction position by the transfer mechanism.

  When the disc is returned to the stocker after playing the disc, the disc is transported toward the stocker and the regulating shaft is moved to the regulating position. Then, during the movement of the disk, the disk moving in the stocker direction comes into contact with the restriction shaft, and when the disk moves, the restriction shaft slides on the surface of the disk and the center hole of the disk overlaps the restriction shaft. Thus, the restricting shaft passes through the center hole of the disc and is inserted into the lower shaft of the disc position restricting means.

By inserting the restriction shaft into the center hole of the disk, the disk is positioned in the stocker and the disk is prevented from jumping out of the stocker due to vibration or the like.
Japanese Patent Laid-Open No. 8-63862

  In order to reduce the size of the disk storage type disk apparatus, there is a disk storage type in which the disk stock position and the reproduction position are overlapped in the disk stacking direction. In such a disk storage type disk device, the selected disk is clamped to the disk driving means by bringing the disk driving means closer to the selected disk from below. In the case of such a mechanism, even if the selected disk is not guided to the clamp position of the turntable but is riding on the turntable and escaping upward as the turntable rises, the disk drive When the means rises by a predetermined distance, the clamp mechanism of the turntable operates and the clamp claw protrudes. For this reason, the selected disk cannot be clamped.

  In the disk storage type disk device described in Patent Document 1, the disk stock position and the reproduction position do not overlap in the disk stacking direction. For this reason, in Patent Document 1, the disk stock position and the reproduction position overlap in the disk stacking direction, and when the disk is clamped to the disk drive means, the disk position restricting means A technique that functions as a disk pressing mechanism for pressing in the direction of the means is not disclosed.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide a disk storage type disk device that can securely clamp a disk.

The present invention includes a plurality of supports that can support a disk and are arranged in a thickness direction of the disk in a housing, and support body selection means that moves the support body in the thickness direction to a selected position. A drive unit having a turntable, and a drive that moves the drive unit after the support has moved to a selected position so that the turntable faces a central hole of a disk supported by the selected support at the selected position. In a disk storage type disk device having a mechanism,
The turntable is provided with a convex part that enters the center hole of the disk, and a clamp claw that protrudes from the convex part and clamps the disk on the turntable. A restricting member located inside the center hole of the disc held in the disc, and the restricting member projects to the outer peripheral side of the restricting member when the disc is clamped to the turntable, A disc pressing member for supporting the disc held on the selective support from the side opposite to the turntable is provided.

  In the present invention, the convex portion of the turntable is inserted into the center hole of the disc in a state where the disc held on the selection support is supported by the disc pressing member from the opposite side to the turntable. For this reason, even when the strength of the support is insufficient, or even when vibration is applied from the outside, it is difficult for the disk to ride on the convex part of the turntable, and the convex part of the turntable is It becomes easy to get into the center hole. Therefore, when the clamp mechanism provided in the turntable operates, the center hole of the disc is securely clamped by the clamp claws.

In the present invention, for example, the disk pressing member is movable between a protruding position protruding from the restricting member in the outer peripheral direction of the restricting member and a retracted position retracting inside the restricting member,
The disk pressing member moved to the protruding position presses the disk outside the center hole of the disk, and the disk pressing member moved to the retracted position is positioned inside the center hole of the disk.

  When the disc pressing member is in the protruding position, the outer portion of the disc is supported by the disc pressing member, so that when the convex portion of the turntable enters the disc central hole, the disc is turned into the turntable. It can be reliably supported from the opposite side. When the disc pressing member is retracted, the disc pressing member is located inside the center hole of the disc. Therefore, when the disc moves in the thickness direction and the selection operation is performed, the disc pressing member hits the disc. There is nothing.

  In the present invention, the disk pressing member is moved to the protruding position by power when the drive unit moves to a position facing the center hole of the disk held by the selection support. Can do.

  Alternatively, in the present invention, the support is provided with a holding claw for holding the outer peripheral portion of the disc, and the housing is provided with a holding claw at a holding position for holding the disc and a release position for releasing the holding of the disc. A holding claw releasing mechanism that is operated in the manner described above is provided, and the disk pressing member can be moved to the protruding position by the driving force of the holding claw releasing mechanism.

Further, according to the present invention, a shaft member is provided on the ceiling surface of the housing, the disk pressing member is rotatably provided at an end of the shaft member, and the restricting member is freely rotatable on the shaft member. Inserted,
The restricting member is formed with a cam groove for projecting the disc pressing member to the projecting position, and the disc pressing member is moved to the projecting position by the rotational force of the restricting member.

  In the disk storage type disk device of the present invention, the center hole of the disk supported by the support can be reliably clamped by the turntable.

  FIG. 1 is an exploded perspective view showing the entire structure of a disk storage type disk device according to an embodiment of the present invention, FIGS. 2 and 3 are plan views showing the disk storage type disk device according to operation, and FIG. FIG. 5A and FIG. 5B are perspective views showing the upper casing in the direction in which the upper casing is inverted in the vertical direction (X1 direction and X2 direction), and FIGS. 5A and 5B are provided in the upper casing. It is a figure which shows the structure of an upper control member and a disk pressing mechanism, (A) is the perspective view which removed the upper control member, (B) is a perspective view which shows the state in which the upper control member was attached. FIG. 6 is a perspective view showing the disk pressing member, FIG. 7 is a perspective view showing the upper regulating member, and FIGS. 8A and 8B illustrate the retraction operation and the protruding operation of the disk pressing member provided on the upper regulating member. FIGS. 9 (A) and 9 (B) are side views of different operations showing the disc clamping operation.

  The disk storage disk device 1 shown in FIG. 1 has a box-shaped housing 2. In FIG. 1, the reference direction of the housing 2 is the lower side on the Z1 side, the upper side on the Z2 side, the left side on the X1 side, the right side on the X2 side, the front side on the Y1 side, and the rear side on the Y2 side. Further, the X1-X2 direction is the horizontal direction, the Y1-Y2 direction is the depth direction, and the Z1-Z2 direction is the vertical direction.

  The housing 2 is assembled by sequentially stacking a lower housing 3, an intermediate housing 4, and an upper housing 5 from the bottom to the top. The lower housing 3 has a bottom surface 6 of the housing 2, and the intermediate housing 4 has a front surface 7 and a right surface 8 of the housing 2. The upper housing 5 has a left side surface 9, a rear side surface 10, and a ceiling surface 11 of the housing 2. As shown in FIG. 1, the front surface 7 is formed with a slit-like insertion port 23 for inserting the disk D into the housing 2.

  As shown in FIG. 1, a first switching mechanism 12 is provided on the upper surface of the bottom surface 6 of the lower housing 3. A unit support base 13 is provided on the first switching mechanism 12, and the unit support base 13 is elastically supported by a plurality of dampers 71, 72, 73 provided on the bottom surface 6 of the lower housing 3. The unit support base 13 is provided with a restriction shaft 77 protruding in the Y2 direction and restriction shafts 78, 78 protruding in the Y1 direction.

  In the lower housing 3, a lock member 54 is provided inside the side plate on the Y2 side, and a control hole 56 is formed in the lock member 54. A restriction shaft 77 provided on the unit support base 13 is inserted into the control hole 56. A lock member (not shown) is also provided on the inner side of the side plate on the Y1 side of the lower housing 3, and two control holes are formed in the lock member, and restriction shafts 78, 78 provided on the unit support base 13. Is inserted into each of the two control holes formed in the lock member on the Y1 side.

  In the first switching mechanism 12, the moving force of the rack member 32 is applied to the lock switching slider 42 via the rotating arm 44. The lock switching slider 42 moves the lock member 54 and other lock members provided inside the Y1 side plate in the X1 direction or the X2 direction.

  In the control hole 56 formed in the lock member 54, a lowering restricting portion 56a is formed on the X1 side, and a delivery restricting portion 56b is formed on the X2 side further than that. Be regulated. In the control hole 56, a drive relief portion 56c having an opening area sufficiently larger than the restriction shaft 77 is formed further on the X2 side than the delivery restriction portion 56b, and the restriction shaft 77 is located in the drive relief portion 56c. Sometimes, the unit support base 13 is elastically supported by the dampers 71, 72, 73. The lowering restricting portion, the delivery restricting portion, and the drive relief portion are similarly provided in the control holes of the other lock members provided on the Y1 side.

  A drive unit 14 is installed on the unit support base 13. The drive unit 14 is provided with a turntable 82 that is a rotation drive unit and a spindle motor that drives the turntable 82. Further, the drive unit 14 has an optical head 83, and the optical head 83 moves in a direction approaching the turntable 82 and a direction away from the turntable 82 by a sled mechanism mounted on the drive unit 14. To do. At this time, the objective lens 83 a provided in the optical head 83 moves along the recording surface of the disk D clamped on the turntable 82.

  The unit support base 13 is provided with a support shaft 84 that rises vertically at the end on the Y2 side in the drawing, and the drive unit 14 is supported by the support shaft 84 so as to be able to rotate in the horizontal direction. In FIG. 1, the drive unit 14 is in a retracted position installed just inside the right side surface 8 of the housing 2, but when the drive unit 14 rotates in the direction of the arrow (a) from the retracted position, one point is shown in FIGS. 2 and 3. As indicated by the chain line, the turntable 82 moves to substantially the center of the lower housing 3, and the drive unit 14 is set at a standby position that overlaps the selected disk (selected disk D1) in the vertical direction. At this time, the turntable 82 faces the center hole Da of the selection disk D1.

  The drive unit 14 is rotated from the retracted position to the standby position by the first switching mechanism 12. As shown in FIG. 1, in the first switching mechanism 12, the rack member 32 is provided so as to be linearly movable in the Y1-Y2 direction, and the rack member 32 is provided on the bottom surface 6 of the lower housing 3. It meshes with a pinion gear 45 that is rotatably provided. A switching motor M shown in a block diagram in FIG. 1 is provided in the lower housing 3, and the pinion gear 45 is rotationally driven by the driving force of the switching motor M, and the power is transmitted to the rack member 32. The rack member 32 is moved in the Y1-Y2 direction shown in the figure.

  The first switching mechanism 12 is provided with a switching slider 38 that moves together with the rack member 32, and a drive pin 41 is fixed to the switching slider 38. As shown in FIG. 1, when the rack member 32 is moved in the Y2 direction shown in the figure, the switching slider 38 is moved in the Y2 direction in the figure, and the drive pin 41 causes the drive unit 14 to be retracted by a broken line in FIG. Held in a rotated state. When the rack member 32 moves in the Y1 direction and the switching slider 38 moves in the Y1 direction, the drive unit 14 is rotated in the arrow (a) direction by the drive pin 41, and the standby position shown in FIG. Move to.

  The drive unit 14 is provided with a unit base, and this unit base is rotatably supported by a support shaft 84. As shown in FIG. 9, a spindle motor Ms is fixed to the front end of the unit base, and a synthetic resin turntable 82 is fixed to the output shaft of the spindle motor Ms.

  As shown in FIGS. 1 and 9A and 9B, the turntable 82 is integrally provided with an installation surface 82c on which the lower surface of the disk D is installed and a central convex portion 82b that enters the center hole Da of the disk D. Is formed. A tapered surface is formed at the tip of the central convex portion 82b, and the tapered surface is a part of the conical surface.

  A clamp mechanism for clamping the center hole Da of the disk D is mounted in the turntable 82. This clamping mechanism is a so-called self-clamping mechanism. As shown in FIG. 9B, three clamp claws 86 projecting from the outer periphery of the central convex portion 82b are provided in the central convex portion 82b. The clamp claws 86 are provided at an angular arrangement of 120 degrees on the outer periphery of the central convex portion 82b.

  A transmission mechanism that transmits the clamping power is provided in the drive unit 14, and a rotation link that constitutes a part of the transmission mechanism is rotatable about the support shaft 84 that is the rotation center of the drive unit 14. It is supported. As described above, when the switching slider 38 moves in the Y1 direction from the state where the drive unit 14 is in the retracted position shown in FIG. 1, the drive unit 14 is rotated in the (a) direction by the drive pin 41, It turns to the standby position shown in FIG. 2 and stops. Further, when the rack member 32 moves in the Y1 direction, the lock switching slider 42 is moved in the Y1 direction by the driving force of the rack member 32, and the lock member 54 moves in the X1 direction. At this time, the unit support base 13 is lifted and driven by the delivery restricting portion 56b of the control hole 56 formed in the lock member 54 and the delivery restricting portion of the control hole formed in another lock member provided on the Y1 side. The unit 14 reaches the delivery position, and the center convex portion 82b enters the center hole Da of the disk D supported by the support 21 at the selected position from below.

  Thereafter, when the switching slider 38 further moves in the Y1 direction together with the rack member 32, the moving force of the switching slider 38 is transmitted to the transmission mechanism via the rotating link supported by the support shaft 84. By this transmission mechanism, the clamp pawl is set to a clamp posture that protrudes from the center convex portion 82b in the outer peripheral direction, as shown in FIG. 9B, from an unclamped posture that does not protrude from the outer periphery of the central convex portion 82b. .

  In this embodiment, the clamping claw 86 is moved between the non-clamping posture and the clamping posture by the moving force of the switching slider 38 provided in the first switching mechanism 12. A small motor may be provided, and the clamp pawl may move from the non-clamping posture to the clamping posture by the power of the small motor.

  As shown in FIG. 1, the first switching mechanism 12 is provided with detection means S that detects the movement position of the lock switching slider 42. As shown in the block diagram of FIG. 1, the detection output of the detection means S is detected by the detection unit 121, and the output of the detection unit 121 is given to the control unit 120. The switching motor M is driven by a motor driver 122, and the motor driver 122 is controlled by the control unit 120.

  As described above, when the drive unit 14 is in the standby position shown in FIG. 3, the rack member 32 is further moved in the Y1 direction by the power of the switching motor M, and the lock switching slider 42 is moved in the Y1 direction by the rotating arm 44. Is moved in the X1 direction, the unit support base 13 is lifted by the control hole 56 of the lock member 54. At this time, the detection output of the detection means S is switched when the unit support base 13 can be raised to a position where the central convex portion 82b of the turntable 82 can enter the central hole Da of the selected disk D1. When the detection output of the detection means S is given to the control unit 120, the control unit 120 issues a control command to the motor driver 122 and shifts to a clamping operation. That is, the switching motor M is further driven, the switching slider 38 is moved in the Y1 direction, and the clamp mechanism is operated.

  A mechanism base 15 parallel to the bottom surface 6 is provided on the upper portion of the intermediate casing 4, and a second switching mechanism 16 is provided on the mechanism base 15. In the intermediate housing 4, a transfer unit 17 is provided below the mechanism base 15 and inside the front surface 7. As shown in FIGS. 2 and 3, the transfer unit 17 is provided with transfer rollers 18 and 19 and a holding member facing each other, and the disk D can be held between the transfer rollers 18 and 19 and the holding member. ing.

  An end portion of the transfer unit 17 on the X1 side in the drawing is rotatably supported by a support shaft 131 (see FIG. 1) provided on the bottom surface of the lower housing 3. 1, 2 and 3, the transfer unit 17 is in a standby position inside the front surface 7. When the disc D is inserted from the insertion port 23 formed in the front surface 7 at this standby position, the disc D is sandwiched between the transfer rollers 18 and 19 and the clamping member, and is caused by the rotational force of the transfer rollers 18 and 19. The disk D is transferred into the housing 2. At the same time, the operation of the second switching mechanism 16 causes the transfer unit 17 to rotate in the direction of the arrow (d) shown in FIGS. 1 and 2, and the rotation of the transfer rollers 18 and 19 and the transfer unit 17 The disk D is carried into the housing 2 by a rotation operation in the direction of FIG.

  In the upper housing 5, an area surrounded by the left side surface 9, the rear side surface 10, and the ceiling surface 11 is a disk storage area 20, and each of the disk storage areas 20 has a plurality of supports capable of supporting the disk D. A body 21 is provided. In this embodiment, six support bodies 21 are provided in the disk storage area 20, and the support bodies 21 are arranged so as to overlap in the thickness direction. Each support 21 is a thin metal plate.

  The upper casing 5 is provided with support body selection means 22. As shown in FIGS. 1, 2, and 3, the support selection unit 22 is provided with three screw shafts 25 </ b> A, 25 </ b> B, and 25 </ b> C, and the screw shafts 25 </ b> A, 25 </ b> B, and 25 </ b> C are provided on the ceiling surface 11. It is rotatably supported by. As shown in FIGS. 2 and 3, bearings 26 </ b> A, 27 </ b> A, 28 </ b> A are fixed to each of the plurality of support bodies 21 at three locations. These bearing portions 26 </ b> A, 27 </ b> A, 28 </ b> A are made of synthetic resin and are formed slightly thicker than the support 21. The bearing portion 26A is slidably inserted into the screw shaft 25A, the bearing portion 27A is slidably inserted into the screw shaft 25B, and the bearing portion 28A is slidably inserted into the screw shaft 25C.

  As shown in FIG. 1, each of the screw shafts 25A, 25B, and 25C is formed with a spiral groove 24 on the outer peripheral surface, and convex portions formed on the bearing portions 26A, 27A, and 28A are formed in the spiral groove 24. It is slidably fitted. In each of the screw shafts 25A, 25B, and 25C, the spiral grooves 24 are formed at a dense pitch at the upper end portion and the lower end portion of the shaft, and the spiral grooves 24 are formed at a sparse pitch at an intermediate portion of the shaft.

  When the screw shafts 25A, 25B, and 25C of the support body selecting means 22 are synchronously driven by a selection motor (not shown), the respective support bodies 21 are moved in the Z1-Z2 direction by the spiral groove 24, thereby supporting the support body. 21 selection operations are performed. The support body positioned at the sparse pitch portion of the spiral groove 24 becomes the selection support body 21a moved to the selection position. A large gap into which the drive unit 14 can enter between the selection disk D1 supported by the selection support 21a and the disk D supported by the support 21 positioned in the dense pitch portion of the spiral groove 24 therebelow. Is formed.

  The disk D has a diameter of 12 cm and is, for example, a CD (compact disk), a CD-ROM, a DVD (digital versatile disk), and the like, and has a center hole Da.

  As shown in FIGS. 2 and 3, each support body 21 is provided with three holding members 26, 27, and 28. The holding member 26 is rotatably supported on the outer peripheral portion of the bearing portion 26A, and the holding member 27 and the holding member 28 are rotatably supported by the bearing portions 27A and 28A, respectively. The holding members 26, 27, and 28 are respectively provided on the lower surface (the surface on the Z1 side in the drawing) of the support body 21, but in FIGS. 2 and 3, the holding member is seen through the support body 21 for the convenience of illustration. 26, 27 and 28 are indicated by solid lines.

  A tension coil spring 29a is hung between the holding member 26 and the support body 21, and the holding member 26 is urged to rotate counterclockwise (γ2 direction). The support body 21 is provided with a stopper (not shown) and is regulated so that the holding member 26 does not rotate too much in the γ2 direction. The holding member 27 is biased clockwise (γ4 direction) by a tension coil spring 29b, and is regulated by a stopper (not shown) provided on the support body 21 so as not to rotate too much in the γ4 direction. ing. Similarly, the holding member 28 is biased in the γ4 direction by a tension coil spring 29c, and is regulated by a stopper (not shown) provided on the support body 21 so as not to rotate too much in the γ4 direction. ing.

  Retaining claws 26b, 27b, and 28b are formed integrally with the retaining members 26, 27, and 28, respectively. The holding claws 26b, 27b, and 28b are opposed to the lower surface of the support body 21 with a space therebetween, and the disk D supplied to the lower surface of the support body 21 is connected to the lower surface of the support body 21 and the holding claws 26b, 27b. , 28b.

  FIG. 4 shows the upper housing 5 with the top and bottom turned upside down. A holding claw release mechanism that moves the holding claws 26b, 27b, 28b to a holding position for holding the disk and a release position for releasing the holding of the disk is provided inside the upper housing 5. As shown in FIG. 4, as further shown in FIGS. 2 and 3, the holding claw release mechanism includes a holding release member 403 located inside the left side surface 9 and a holding release member located inside the rear side surface 10. 404.

  As shown in FIG. 4, elongated holes 411 a and 411 a extending in the Y1-Y2 direction are formed in the holding release member 403, and the elongated holes 411 a and 411 a are guide pins 412 fixed to the inside of the left side surface 9. The holding release member 403 is slidably supported in the Y1-Y2 direction.

  A drive claw 403 a is formed on the holding release member 403. When any one of the supports 21 moves to the selected position, as shown in FIGS. 2 and 3, the holding member 26 provided on the selected support 21 a moved to the selected position moves the driving claw 403 a of the holding release member 403. Opposite to. When the holding release member 403 moves in the Y2 direction in this state, the holding member 26 is rotated in the γ1 direction by the driving claw 403a, and the holding claw 26b of the holding member 26 moves to the outside of the outer peripheral edge of the disk D. To the release position.

  As shown in FIG. 4, a switching drive member 501 is provided inside the rear side surface 10 of the upper housing 5. The switching drive member 501 is formed with elongated holes 501a and 501a extending in the X1-X2 direction. The long holes 501a and 501a are slidably inserted into guide pins 502 and 502 fixed inside the rear side surface 10, and the switching drive member 501 is slidably supported in the X1-X2 direction.

  A connecting gear 504 is rotatably supported by a shaft 503 on the inner side of the rear side surface 10 of the upper housing 5 on the X2 side. An upper rack portion 501b is formed at an edge portion of the switching drive member 501 facing the Z1 direction, and the connecting gear 504 is always meshed with the upper rack portion 501b. As shown in FIG. 1, when the upper housing 5 is combined on the lower housing 3, the lower rack portion 54 c formed on the lock member 54 provided on the lower housing 3 and the connecting gear 504 are provided. Engage. Therefore, the lock member 54 and the switching drive member 501 are connected via the connecting gear 504. When the lock member 54 moves in the X2 direction, the switching drive member 501 is moved in the X1 direction. When the lock member 54 moves in the X1 direction, the switching drive member 501 is moved in the X2 direction.

  On the inner side of the rear side surface 10 of the upper housing 5, a holding release member 404 is provided so as to be able to move in parallel with the switching drive member 501. The holding release member 404 has elongated holes 404c and 404c extending in the X1-X2 direction. The elongated holes 404c and 404c are slidably inserted into guide pins 404d and 404d fixed to the rear side surface 10, respectively. The holding release member 404 is slidably supported in the X1-X2 direction.

  An inversion connecting lever 506 is provided between the switching drive member 501 and the holding release member 404. The reverse connection lever 506 is rotatably supported by a shaft 507 fixed to the rear side surface 10. A connecting pin 509 is fixed to the end of the reverse connecting lever 506 on the Z1 side, and this connecting pin 509 is inserted into a long hole (not shown) formed in the holding release member 404. A reverse control pin 508 is fixed to the end of the reverse connecting lever 506 on the Z2 side, and this reverse control pin 508 is inserted into a control slot 501c formed in the switching drive member 501. The control long hole 501c has a crank shape in which the X1 side approaches the ceiling surface 11 and the X2 side separates from the ceiling surface 11.

  As shown in FIG. 4, when the switching drive member 501 is moved in the X2 direction, the reverse connecting lever 506 is rotated clockwise by the control slot 501c, and the holding release member 404 is moved in the X1 direction. . When the switching drive member 501 moves in the X1 direction, the reverse connecting lever 506 is rotated counterclockwise, and the holding release member 404 is moved in the X2 direction.

  The holding release member 404 is formed of a metal plate. A driving claw 404b is bent in the Y1 direction at an end portion on the X2 side, and a driving claw 404a is bent in the Y1 direction on an end portion on the X1 side. Yes. As shown in FIGS. 2 and 3, when any one of the supports 21 moves to the selected position, the holding member 27 provided on the selected support 21a faces the driving claw 404b, and the holding member 28 moves to the driving claw 404a. Opposite to.

  When the holding release member 404 is moved in the X1 direction, both the holding members 27 and 28 are rotated counterclockwise (γ3 direction) by the drive claws 404b and 404a, and the holding claws 27b and 28b are moved out of the disk D. Retreat outside the periphery and set to the release position.

  As shown in FIG. 4, the holding release member 403 provided on the inner side of the left side surface 9 of the upper housing 5 is provided with a connecting piece 411c that is integrally bent from the edge on the Z2 side toward the X2 direction. The connection pin 415 is fixed to the connection piece 411c. The switching drive member 501 provided on the inner side of the rear side surface 10 of the upper housing 5 is formed with a connecting piece 501d integrally bent from the edge on the Z2 side in the Y1 direction. A connecting pin 516 is fixed.

  A connection rotation plate 520 is provided on the lower surface of the ceiling surface 11 of the upper housing 5. A columnar upper regulating member 102 is provided on the ceiling surface 11. The upper restricting member 102 is positioned in the center hole Da of the disk D held by the support 21 positioned above the selected position, and prevents the disk D from coming out of the support 21 positioned other than the selected position. To do. The connecting rotation plate 520 is supported so as to be rotatable in the α direction and the β direction around a point that coincides with the center of the upper regulating member 102.

  The connecting rotation plate 520 is provided with arc long holes 520a, 520a, 520a formed along an arc locus drawn at a predetermined radius from the center of the upper regulating member 102. Guide pins 521, 521, 521 are fixed to the lower surface of the ceiling surface 11, and the circular arc long holes 520 a, 520 a, 520 a are guided and supported by the guide pins 521, 521, 521.

  Further, the connection rotation plate 520 is formed with a connection long hole 520 b and a connection long hole 520 c that extend radially from the center of the upper regulating member 102. The connecting pin 415 fixed to the connecting piece 411c of the holding release member 403 is slidably inserted into the connecting long hole 520b, and the connecting pin 516 fixed to the connecting piece 501d of the switching drive member 501 slides into the connecting long hole 520c. It is inserted freely.

  Therefore, when the second switching drive member 501 is moved in the X1 direction by the rotational force of the connection gear 504, the connection rotation plate 520 is rotated in the α direction, and the holding release member 403 is moved in the Y1 direction. When the switching drive member 501 is moved in the X2 direction, the connecting rotation plate 520 is rotated in the β direction, and the holding release member 403 is moved in the Y2 direction.

  In FIG. 3, since the holding release member 403 is moved in the Y1 direction and the holding release member 404 is moved in the X2 direction, no force is applied from the holding release members 403 and 404 to the holding members 26, 27, and 28. First, the holding members 26, 27, and 28 are in the holding position by the urging force of the tension coil springs 29a, 29b, and 29c, and the disk D can be held between the support 21 and the holding claws 26b, 27b, and 28b. If the holding release member 403 moves in the Y2 direction when the support 21 is in the selected position, the holding claw 403a of the holding release member 403 causes the holding member 26 provided on the selected support 21a to move in the γ1 direction. It is turned to the release position. When the holding release member 404 moves in the X1 direction, the holding claws 27 and 28 provided on the selection support 21a are rotated in the γ3 direction by the drive claws 404b and 404a of the holding release member 404. Then, the holding members 26, 27, and 28 are separated from the outer peripheral edge of the disk D, and the holding of the disk D is released.

  As shown in FIGS. 2 and 3, at the corner between the left side surface 9 and the rear side surface 10 of the housing 2, the disk D is loaded on the selection support 21a, or the selection disk D1 is loaded on the selection support 21a. There is provided a loading detection unit 180 for detecting that is supported. The loading detection unit 180 is provided with an optical detection element 181, and the optical detection element 181 is configured such that a light emitting element and a light receiving element face each other. Only one optical detection element 181 is provided in the housing 2, and is provided at the same height as the selection support 21a. Each holding member 28 provided on each support body 21 is formed with a detection portion 28h so as to project integrally.

  When the support 21 is moved to the selected position, the detection unit 28 h of the selected support 21 a faces the optical detection element 181. At this time, as shown in FIG. 2, when the disk D is not held on the selective support 21a, the holding member 28 is greatly rotated in the γ4 direction by the tension coil spring 29c, and therefore the detection unit 28h. Intervenes between the light emitting element and the light receiving element of the optical detection element 181 and the detection output is turned OFF. As shown in FIG. 3, when the disc D is loaded on the selective support 21a, the holding member 28 is pushed by the outer peripheral edge of the disc D, and the holding member 28 is slightly rotated in the γ3 direction. Therefore, the detection unit 28h comes out of the optical detection element 181 and the detection output of the optical detection element 181 is turned on.

  The control unit 120 shown in FIG. 1 monitors the detection output of the optical detection element 181 from OFF to ON, so that the selected disk D1 is positioned and held on the selected support 21a. It can be recognized whether or not the disk D is held on the selective support 21a.

  A center hole restricting mechanism is provided in the housing 2 to prevent the disk D from coming out from the respective support bodies 21 at positions other than the selected position in the disk storage area 20 in the horizontal direction.

  As shown in FIG. 1, the center hole restricting mechanism has a lower restricting member 101 fixed on the bottom surface 6 of the housing 2 and an upper restricting member 102 provided on the ceiling surface 11 of the housing 2. Yes. The lower regulating member 101 and the upper regulating member 102 are each formed of a synthetic resin material. The lower restricting member 101 and the upper restricting member 102 are each cylindrical and are located coaxially with each other. The diameters of the lower regulating member 101 and the upper regulating member 102 are smaller than the inner diameter of the center hole Da of the disk D.

  The lower restricting member 101 and the upper restricting member 102 located on the same axis are arranged with a space in the vertical direction. When the support body 21 is moved to the selection position by the support body selection means 22, the selection disk D1 held by the selection support body 21a is positioned between the lower restriction member 101 and the upper restriction member 102. Further, as shown in FIGS. 2 and 3, when the drive unit 14 is rotated to the standby position and the turntable 82 mounted on the drive unit 14 faces the center hole Da of the selected disk D1, the drive is performed. The unit 14 is also located between the lower restriction member 101 and the upper restriction member 102.

  Further, the lower regulating member 101 is located in the center hole Da of the disk D held by the other support body 21 located on the bottom surface 6 side with respect to the selection support body 21a. Further, the upper restricting member 102 is located in the center hole Da of the disk D held by the other support body 21 located closer to the ceiling surface 11 than the selection support body 21a.

  In the support bodies 21 other than the selected support body 21a, the lower restriction member 101 or the upper restriction member 102 is located in the center hole Da of the disk D held by the support body 21a. The disc D is restricted from moving in the horizontal direction, and the disc D is not detached from the holding claws 26b, 27b, 28b at the holding position.

  5A, 5B, and 8 show the upper regulating member 102 provided in the upper casing 5 upside down. A shaft member 202 is provided at the center of the upper regulating member 102. As shown in FIG. 5A, the shaft member 202 has a cylindrical shape, and the upper end portion 202a has a slightly narrow diameter, and this end portion 202a is formed on the ceiling surface 11 of the upper housing 5. It is fixed. A central hole 520 d is formed in the connecting rotation plate 520, and the central hole 520 d is slidably positioned on the outer periphery of the shaft member 202.

  As shown in FIG. 5A, a pair of disk pressing members 201, 201 are provided on an end surface 202b facing the lower side of the shaft member 202. The disc pressing member 201 is made of synthetic resin, and as shown in FIG. 6, a rotating shaft 201a extending in the Z2 direction, a sliding protrusion 201b extending in the Z1 direction, and a pressing protrusion extending obliquely in the Z1 direction. 201c is integrally formed. As shown in FIG. 5A, the rotating shaft 201a formed on each of the disk pressing members 201 and 201 is rotatably supported by a shaft hole formed on the lower end surface 202b of the shaft member 202. .

  As shown in FIG. 5B, the upper regulating member 102 is attached to the shaft member 202. The upper regulating member 102 includes a cylindrical portion 102a and a flange-shaped fixing portion 102b formed on the outer periphery of the upper end of the cylindrical portion 102a. A cylindrical portion 102 a is placed on the shaft member 202 and the disk pressing members 201, 201 so that the upper regulating member 102 can rotate around the shaft member 202. The fixed portion 102b is in close contact with the lower surface of the connecting rotation plate 520, and the fixing portion 102b is fixed to the connecting rotation plate 520 by an attachment hole 102e formed in the fixing portion 102b.

  The diameter of the outer peripheral surface of the cylindrical portion 102 a of the upper regulating member 102 is smaller than the inner diameter of the center hole Da of the disk D. As shown in FIG. 7, a pair of windows 102c and 102c extending in the circumferential direction are opened on the outer periphery of the lower end of the cylindrical portion 102a. Further, a pair of cam long holes 102d are formed through the end face 102f facing downward of the cylindrical portion 102a. As shown in FIGS. 8A and 8B, the cam slot 102d is formed in a straight line inclined obliquely with respect to the radial direction of the cylindrical portion 102a.

  Each disc pressing member 201 is sandwiched between the end surface 202b of the shaft member 202 and the end surface 102f of the cylindrical portion 102a of the upper regulating member 102, and the sliding convex portion 201b integrated with the disc pressing member 201 has each Inserted into the cam long hole 102d, the pressing protrusion 201c of each disk pressing member 201 is located inside the window 102c.

  As shown in FIG. 8A, when the connecting rotating plate 520 rotates in the α direction, the upper regulating member 102 rotates in the α direction together with the connecting rotating plate 520, and the disk is pressed by the cam slot 102d. The member 201 is rotated counterclockwise about the rotation shaft 201a. At this time, the pressing convex portion 201c of the disc pressing member 201 moves into the window 102c of the upper regulating member 102, and the tip thereof does not protrude outward from the outer peripheral surface of the cylindrical portion 102a. As shown in FIG. 8B, when the connecting rotation plate 520 rotates in the β direction, the upper regulating member 102 rotates in the β direction. Then, the disc pressing member 201 is rotated clockwise by the cam long hole 102d. As a result, the pressing convex portion 201c protrudes further outward from the outer peripheral surface of the cylindrical portion 102a.

  As shown in FIGS. 9A and 9B, the tips of the pressing projections 201c formed on the respective disc pressing members 201 protrude further to the Z1 side than the lower end surface 102f of the upper regulating member 102. .

Next, the operation of the disk storage disk device 1 will be described.
(Support selection operation)
In the selection operation for moving the support 21 to the selection position, the rack member 32 of the first switching mechanism 12 is moved in the Y2 direction by the pinion gear 45 as shown in FIG. The switching slider 38 is moved in the Y2 direction. Therefore, the drive unit 41 is rotated counterclockwise by the drive pin 41 provided on the switching slider 38, and the drive unit 14 is parallel to the right side surface 8 of the housing 2 as indicated by a broken line in FIG. And a retreat position that does not hit the disk D in the disk storage area 20. Further, the transfer unit 17 is positioned parallel to the inside of the front surface 7 of the housing 2 by the second switching mechanism 16 shown in FIG. 1 and set to a standby position that does not hit the disk D in the disk storage area 20. .

  At this time, the lock switching slider 42 has moved to the end in the direction (b), and the lock member 54 has been moved in the X2 direction. Further, the switching drive member 501 is moved in the X1 direction via the connecting gear 504 with which the lock member 54 is engaged. When the switching drive member 501 is moved in the X1 direction, the connecting rotation plate 520 shown in FIG. 4 is rotated in the α direction. As shown in FIG. 8A, the upper restricting member 102 fixed to the connecting turning plate 520 is also turned in the α direction, and the disk pressing members 201, 201 are formed in the cylindrical portion 102a of the upper restricting member 102. Retreat to the center side.

  When an operation for selecting any one of the supports 21 is performed by an operation unit provided outside, the screw shafts 25A, 25B, and 25C of the support selection means 22 are synchronized with each other by a command operation from the control unit 120. The support 21 is rotated, and each support body 21 moves in the Z1-Z2 direction in the figure, and the selection operation of the support body 21 is performed. When the selection support 21a moves to a selection position above the upper end of the lower restriction member 101 and below the lower end of the upper restriction member 102, the screw shafts 25A, 25B, and 25C are stopped.

  In this support body selecting operation, the center hole Da of the disk D supported by each support body 21 moves up and down the outer periphery of the lower restricting member 101 or the outer periphery of the upper restricting member 102. Therefore, it is possible to prevent the disk D that is moving in the Z1-Z2 direction from coming out of the support 21.

  Further, as shown in FIG. 8 (A), the disc pressing members 201, 201 are retracted inward from the outer periphery of the cylindrical portion 102a of the upper regulating member 102, so that the support 21 moves in the Z1-Z2 direction. In this case, the center hole Da of the disk D supported by the support 21 does not hit the pressing projection 201c of the disk pressing member 201, and the support selecting operation is performed without malfunction.

(Moving the drive unit to the standby position)
When the support 21 is moved to the selected position and the support selection means 22 is stopped, a command is given from the control unit 120, the switching motor provided in the lower housing 3 is started, and the first switching mechanism 12 is activated. Operate. At this time, the rack member 32 and the switching slider 38 shown in FIG. 1 move in the Y1 direction, the drive unit 14 rotates in the direction (a) from the retracted position shown in FIG. The position shown and the standby position shown by the chain line in FIG. 3 are reached.

  At this time, the lock member 54 shown in FIG. 1 remains moving in the X2 direction, the restriction shaft 77 is restrained by the lowering restriction portion 56a of the control hole 56 formed in the lock member 54, and the other provided on the Y1 side. The restricting shafts 78 and 78 are restricted by the lower restricting part of the control hole formed in the lock member. The unit support base 13 is lowered so that the dampers 71, 72, 73 are crushed. Therefore, the turntable 82 provided in the drive unit 14 that rotates in the direction (a) on the unit support base 13 moves to a position farther below the lower surface of the support 21 at the selected position.

  The drive unit 14 that has reached the standby position shown in FIGS. 2 and 3 enters between the lower regulating member 101 and the upper regulating member 102.

(Disc detection operation)
When any of the supports 21 is moved to the selected position and stopped by the selection operation, if the selection disk D1 is held on the selection support 21a, as shown in FIG. 3, the selection support 21a is provided with the selection disk D1. Since the held holding member 28 is pushed by the selection disk D1 and rotated in the γ3 direction, the detection unit 28h formed on the holding member 28 has come out of the optical detection element 181. Therefore, the detection output of the optical detection element 181 of the loading detection unit 180 is ON. By providing this detection output to the control unit 120, when any one of the supports 21 reaches the selected position, it can be recognized that the selected disk D1 is held on the selected support 21a.

  On the other hand, when the empty support 21 that does not support the disk D is stopped at the selected position, the disk D can be inserted from the insertion slot 23. In this disc insertion mode, as shown in FIG. 2, when the drive unit 14 is in the standby position and the insertion of the disc D from the insertion slot 23 is detected by the detection means located inside the insertion slot 23. The transfer rollers 18 and 19 provided in the transfer unit 17 rotate in the disk loading direction, and the disk D is fed into the housing. As shown in FIG. 2, when the disk D is transferred into the housing 2 to some extent by the transfer rollers 18 and 19, the second switching mechanism 16 in the intermediate housing 4 shown in FIG. The unit 17 rotates counterclockwise ((d) direction) with the support shaft 131 as a fulcrum, and by this rotation operation and the rotation of the transfer rollers 18 and 19, the disk D is placed on the lower surface of the selection support 21a. Supplied.

  As shown in FIG. 3, the disk D supplied to the lower surface of the selective support 21a is sandwiched between the lower surface and the holding claws 26b, 27b, 28b of the three holding members 26, 27, 28, The disk D is held by the holding member 26 and the holding member 27 on which the elastic force of the tension coil springs 29a and 29b is applied.

  When the disk D is loaded on the lower surface of the selection support 21a, as shown in FIG. 3, the holding member 28 provided on the selection support 21a is rotated in the γ3 direction, and the detection formed on the holding member 28 is detected. The part 28h comes out of the optical detection element 181, and the detection output of the optical detection element 181 of the loading detection unit 180 is turned on. This detection output is given to the control unit 120, and the control unit 120 can recognize that the disk D is loaded on the selected support 21a.

(Raising operation of the drive unit 14)
As shown in FIG. 2, after the selection operation of the selection support 21a is completed and the drive unit 14 is turned to the standby position and stopped, the first switching mechanism 12 shown in FIG. The drive unit 14 is raised.

  In the ascending operation of the drive unit 14, the rack member 32 shown in FIG. 1 is moved in the Y1 direction, and the lock switching slider 42 is moved in the Y1 direction (the direction opposite to the (b) direction). Thus, the lock member 54 is moved in the X1 direction. Similarly, the other lock members provided on the Y1 side are also operated by the lock switching slider 42. At this time, the restricting shaft 77 is lifted in the Z2 direction by the delivery restricting portion 56b of the control hole 56 formed in the lock member 54, and similarly, the restricting shaft 78 by the delivery restricting portion of the other lock member provided in the Y1 direction. 78 are lifted. The drive unit 14 together with the unit support base 13 is lifted from the standby position in the Z2 direction as the lock member 54 moves in the X1 direction.

  When the lock member 54 moves in the X1 direction, the switching drive member 501 shown in FIG. 4 moves in the X2 direction via the connection gear 504, and the connection rotation plate 520 is rotated in the β direction. Since the upper restricting member 102 is fixed to the connecting rotation plate 520, when the connecting turning plate 520 is rotated in the β direction, the upper restricting member 102 is also attached to the shaft member 202 as shown in FIG. Rotate around in β direction. When the upper regulating member 102 is rotated in the β direction, the disk pressing members 201 and 201 supported by the shaft member 202 are rotated in the clockwise direction by the cam elongated holes 102d and 102d formed in the upper regulating member 102. The pressing convex portions 201 c and 201 c protrude to the outside of the cylindrical portion 102 a of the upper regulating member 102.

  That is, when the lock member 54 moves in the X1 direction, the turntable 82 facing the center hole Da of the selected disk D1 rises in the Z2 direction, and the disk pressing members 201, 201 are moved in FIG. ) To the protruding position shown in FIG. 8B.

  In this way, the disc pressing members 201 and 201 are moved to the protruding position by the power that raises the drive unit 14, so that a separate power source for projecting the disc pressing members 201 and 201 becomes unnecessary, and the inside of the apparatus The structure can be simplified. Further, the timing at which the drive unit 14 is raised and the timing at which the disk pressing members 201 and 201 are moved to the protruding position can be matched with high accuracy.

  The lock member 54 moves in the X1 direction, the switching drive member 501 moves in the X2 direction via the connecting gear 504, the connecting rotary plate 520 rotates in the β direction, and the disk pressing members 201 and 201 protrude. While reaching the position, the holding release member 404 is moved in the X1 direction via the reverse connecting lever 506 shown in FIG. Then, the drive claw 404b formed on the holding release member 404 is moved in the X1 direction from the position shown in FIG. However, in the operation in which the disk pressing members 201 and 201 reach the protruding position and the drive unit 14 is lifted in the Z2 direction, the movement distance of the lock member 54 in the X1 direction is only about half of the entire movement range. . Therefore, during this period, the drive claw 404b is slightly pressing the holding member 27 in the X1 direction. For this reason, the holding member 27 does not rotate greatly in the γ3 direction, and the disk D is held between the lower surface of the support 21 and the holding claws 27b. Similarly, although the holding member 28 is slightly pushed in the X1 direction by the driving claw 404a formed on the holding release member 404, the holding member 28 does not rotate greatly in the γ3 direction, and the disk D is attached to the support 21. It is held between the lower surface and the holding claw 28b. The same applies to the relationship between the drive claw 403a formed on the holding release member 402 and the holding member 26.

  As shown in FIGS. 9A and 9B, when the disk pressing members 201 and 201 protrude from the upper regulating member 102, the distance between the pressing protrusions 201c and 201c of the disk pressing members 201 and 201 is set to the center hole of the disk D. It becomes larger than the diameter of Da. Therefore, the pressing protrusions 201c and 201c face the upper surface of the selection disk D1 outside the center hole Da. Further, the tip portions of the pressing convex portions 201 c and 201 c protrude downward from the end surface 102 f of the cylindrical portion 102 a of the upper regulating member 102.

  As shown in FIG. 9A, the disk pressing members 201 and 201 reach the protruding position before the drive unit 14 is raised and the center convex portion 82b of the turntable 82 enters the center hole Da of the selected disk D1. The upper surface of the selection disk D1 is supported by the pressing protrusions 201c and 201c. Therefore, the center convex part 82b of the turntable 82 can be surely entered into the center hole Da of the selection disk D1. For example, the drive unit 14 rises in a state where the central convex portion 82 b of the turntable 82 is slightly shifted in plan from the central hole Da of the disc D, and the peripheral portion of the central hole Da of the disc D is the central convex portion of the turntable 82. There may be a slight climb on the part 82b. Even in such a case, when the selection disk D1 is slightly lifted, the upper surface of the selection disk D1 is supported by the pressing protrusions 201c and 201c, so that the drive unit 14 is further lifted to center the center protrusion 82b. It becomes easy to enter the hole Da.

  Further, if the central convex portion 82b of the turntable 82 and the central hole Da are greatly displaced, the central convex portion 82b may not enter the central hole Da when the turntable 82 is raised. In this case, since the selection disk D1 is supported by the pressing projections 201c and 201c, the ascending operation of the turntable 82 is restricted in the middle. For this reason, the lock switching slider 42 shown in FIG. 1 cannot sufficiently move in the Y1 direction, and the detection means S cannot operate. In this case, the control unit 120 determines that the ascending operation of the drive unit 14 is not completed, and can perform a retry operation such as, for example, returning the lock member 54 to the X2 direction and then moving the lock member 54 to the X1 direction. become.

  As described above, the selection support 21a and the selection disk D1 are deformed upward without the center convex portion 82b being able to enter the center hole Da, and it is erroneously detected that the raising operation of the drive unit 14 is completed as it is. Can be prevented. If this erroneous detection occurs, the clamp pawl 86 protrudes from the central convex portion 82b of the turntable 82 even though the central convex portion 82b of the turntable 82 does not enter the central hole Da of the selection disk D1. A malfunction occurs. However, in this embodiment, since the selected disk D1 is supported from above by the disk pressing members 201, 201, the above-described erroneous detection and malfunction can be prevented.

(Disc clamp operation)
The detecting means S detects that the center convex part 82b of the turntable 82 can enter the center hole Da of the disk D and the lock switching slider has moved a predetermined distance in the Y1 direction. If recognized, the operation proceeds to the disc clamping operation.

  In the disc clamping operation, the rack member 32 is further moved in the Y1 direction by the power of the switching motor M shown in FIG. However, at this time, the rotating arm 44 does not operate, the lock switching slider 42 remains stationary without moving, and only the switching slider 38 is moved in the Y1 direction. At this time, another drive slider provided on the lower surface of the unit support base 13 is moved in the Y1 direction by the drive pin 41 provided on the switching slider 38. Due to the moving force, the clamp mechanism provided on the turntable 82 operates, and as shown in FIG. 9B, the clamp pawl 86 protrudes from the periphery of the center convex portion 82b of the turntable 82, and the center hole of the disc. The peripheral edge of Da is clamped by clamp claws 86, and the center hole Da of the disk is clamped to the turntable 82.

(Disk drive operation)
When the disk D is clamped to the turntable 82, the switching motor M of the first switching mechanism 12 is started, and the lock member 54 moves in the X1 direction. At this time, the switching arm 38 operates without moving the switching slider 38 in the Y1 direction, and the lock switching slider 42 is further moved in the Y1 direction. Therefore, the lock member 54 is further moved in the X1 direction.

  When the lock member 54 moves in the X1 direction, the switching drive member 501 shown in FIG. 3 is moved in the X2 direction via the connecting gear 504. Therefore, the holding release member 404 is moved in the X1 direction, and the holding members 27 and 28 are rotated in the γ3 direction by the drive claws 404a and 404b formed on the holding release member 404. Further, the moving force of the switching drive member 501 is transmitted to the holding release member 403 via the connecting rotation plate 520, and the holding release member 403 moves in the Y2 direction. At this time, the holding member 26 is rotated in the γ1 direction by the driving claw 403a formed on the holding release member 403. Accordingly, the holding claws 26b, 27b, 28b of the holding members 26, 27, 28 are disengaged outside the outer peripheral edge of the disk D, and the holding of the disk D by the support 21 is released.

  During this time, the connecting rotation plate 520 rotates in the β direction, and the upper regulating member 102 shown in FIG. 8B also rotates together. The attitude of the protruding position shown in FIG.

  When the lock member 54 moves in the X1 direction, the restriction shaft 77 provided on the unit support base 13 is positioned in the drive relief portion 56c of the control hole 56 formed in the lock member 54, and similarly, the restriction shaft 78 and 78 are located in the drive relief part of the other lock member provided in the Y1 side. Therefore, the unit support base 13 that has been lifted by the delivery restricting portion 56b of the control hole 56 of the lock member 54 is in a free state, and is elastically supported by the dampers 71, 72, and 73 in a posture in which the unit support base 13 is lowered. .

  Then, as shown in FIG. 9B, the selection disk D1 clamped on the turntable 82 is slightly downward from the lower end face 102f of the selection support 21a and the pressing protrusions 201c and 201c of the disk pressing member 201. Leave. At this position (drive position), the disk D is rotationally driven together with the turntable 82, and information is reproduced and recorded by the optical head 83.

(Operation to store the disc after the drive is completed)
After the drive of the disk D is completed by the drive unit 14, the first switching mechanism 12 is operated, the rack member 32 is moved in the Y2 direction, and the rotating arm 44 is rotated in the clockwise direction. The lock switching slider 42 is moved in the Y2 direction (direction (b) in the figure).

  When the lock member 54 is moved in the X2 direction by a distance that is approximately half of the entire movement range, the switching motor M stops at that time. Therefore, the restriction shaft 77 is held by the delivery restriction portion 56b of the control hole 56 formed in the lock member 54, and the restriction shafts 78, 78 are held by the delivery restriction portion of the other lock member located on the Y1 side. Thus, the unit support base 13 and the drive unit 14 are lifted, and the selection disk D1 clamped on the turntable 82 is pressed against the lower surface of the selection support 21a at the selected position.

  At substantially the same time, the holding release member 403 shown in FIG. 3 moves in the Y1 direction, the holding release member 404 moves in the X2 direction, the restraint of the holding members 26, 27, and 28 is released, and the tension coil spring 29a, The disk D is held by the holding members 26 and 27 by the elastic force of 29b. Further, the rack member 32 is moved in the Y2 direction, the switching slider 38 is moved in the Y2 direction, the clamp mechanism operates in the released state, and the clamp pawl 82a retracts into the central convex portion 82b of the turntable 82. Thus, the clamp of the disk D is released.

  Next, the rack member 32 of the first switching mechanism 12 is moved in the Y2 direction, the lock switching slider 42 is moved in the Y2 direction, and the lock member 54 is operated in the X2 direction. Then, the restriction shaft 77 is lowered and held by the lowering restriction portion 56a of the lock member 54, and the restriction shafts 78 and 78 are lowered and held by the lowering restriction portion of the other lock member. Therefore, the drive unit 14 is in a standby position away from the lower surface of the disk D held on the support 21.

  Then, the upper restricting member 102 is rotated in the α direction in accordance with the rotation operation of the connecting rotation plate 520 in the α direction, and the disk pressing members 201 and 201 are moved as shown in FIG. The upper regulating member 102 is retracted inward from the outer peripheral surface of the cylindrical portion 102a.

1 is an exploded perspective view showing the overall structure of a disk storage type disk device according to an embodiment of the present invention; A plan view showing disk storage type disk devices according to operation, A plan view showing disk storage type disk devices according to operation, A perspective view showing the holding switching mechanism provided in the upper housing, showing the upper housing upside down, (A) (B) is the partial perspective view which shows the structure of an upper control member and a disk holding | maintenance mechanism according to operation | movement by reversing an up-down direction, A perspective view showing the disk pressing member upside down, A perspective view showing the upper regulating member upside down, (A) (B) is a bottom view for explaining the retraction operation and the protrusion operation of the disk pressing member provided in the upper regulating member, (A) and (B) are side views showing the disc clamping operation according to the operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc storage type disk apparatus 14 Drive unit 21a Selection support body 54 Lock member 82 Turntable 82b Center convex part 86 Clamping claw 102 Upper control member 102d Cam long hole 201 Disc press member 201c Press convex part 504 Connection gear 520 Connection rotation board

Claims (5)

A plurality of supports that can support the disk and are arranged in the thickness direction of the disk in the housing, a support selection unit that moves the support in the thickness direction and moves it to a selected position, and a turntable. And a drive mechanism that moves the drive unit after the support has moved to the selected position so that the turntable faces the center hole of the disk supported by the selected support at the selected position. In the disk storage type disk device,
The turntable is provided with a convex part that enters the center hole of the disk, and a clamp claw that protrudes from the convex part and clamps the disk on the turntable. A restricting member located inside the center hole of the disc held in the disc, and the restricting member projects to the outer peripheral side of the restricting member when the disc is clamped to the turntable, A disk storage type disk apparatus, characterized in that a disk pressing member for supporting a disk held on a selection support from the side opposite to the turntable is provided. The disc pressing member is movable between a protruding position protruding from the restricting member in the outer peripheral direction of the restricting member and a retracted position retracting to the inside of the restricting member,
The disk pressing member moved to the protruding position presses the disk outside the center hole of the disk, and the disk pressing member moved to the retracted position is positioned inside the center hole of the disk. Disk storage type disk device.   The disk storage type according to claim 2, wherein the disk pressing member is moved to the protruding position by power when the drive unit moves to a position facing a center hole of the disk held by the selection support. Disk unit.   The support is provided with a holding claw for holding the outer peripheral portion of the disc, and the holding claw for operating the holding claw to a holding position for holding the disc and a release position for releasing the holding of the disc is provided on the housing. 3. A disk storage type disk device according to claim 2, wherein a release mechanism is provided, and the disk pressing member is moved to the protruding position by a driving force of the holding claw release mechanism. A shaft member is provided on the ceiling surface of the housing, the disk pressing member is rotatably provided at an end of the shaft member, and the restricting member is rotatably inserted into the shaft member.
5. A cam groove for projecting the disc pressing member to the projecting position is formed in the restricting member, and the disc pressing member is moved to the projecting position by a rotational force of the restricting member. A disk storage type disk device according to any one of the above.

Images