JP4266973B2 - Disk storage type disk device - Google Patents

Description

  The present invention relates to a disk storage type disk device in which a plurality of disks are stacked and stored in a thickness direction in a casing, and one of the disks is selected and driven.

  Patent Document 1 below discloses a disk changer device that selects a disk to be reproduced from a plurality of disks.

  In this disc changer apparatus, a plurality of trays are arranged in the thickness direction, and discs can be stored in the individual trays. When one of the trays is selected and moved to the disc insertion / ejection position (the height at which the disc can be played back), the interval between the selected tray and the tray positioned above the tray is widened. It is done.

  At this time, since the tray located above the selected tray is located above the disk insertion / ejection position, the tray is directed downward from the upper plate of the housing into the center hole of the disk stored in the tray. Then, a J-shaped disc restricting body (see FIG. 20 of Patent Document 1) that protrudes and enters and the movement of the disc located above is restricted.

In addition, the disc stored in the tray at the reproducible height position is not regulated by the disc regulating body, and this disc is pulled out in the ejecting direction and installed on the turntable so that it can be driven to rotate.
JP 2004-63017 A

  Each tray provided in the disk changer device described in Patent Document 1 has a semi-annular shape, and the disk is stored in a state where its center of gravity is removed from the tray. Therefore, when the center hole of the disc stored in the tray located above the disc insertion / ejection position is restricted by the disc restricting body, the tip portion of the disc facing the disc ejection direction is easily inclined downward. Become. As a result, when the disk located at the disk insertion / ejection position is moved toward the turntable facing in the ejection direction, the moving disk is likely to come into contact with the disk tilted above.

  In addition, since the disc housed in the tray located above the disc insertion / ejection position is only supported at the center hole by the disc restricting body, for example, in the case of an in-vehicle disc changer device, the vehicle body vibration When this occurs, the disc regulated by the disc regulating body swings up and down, and rattle noise is likely to occur.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and can store a disc supported by a support tray without disturbing the selection operation of the support tray by means of preventing the disc from swinging. An object of the present invention is to provide a type disk device.

The present invention provides a supporting surface for supporting a disk, a supporting tray having a surface opposite to the supporting surface, a holding member for holding the disk supported by the supporting surface, and a plurality of the above-described plurality of elements arranged in the thickness direction of the disk. A support tray selection means for moving one of the support trays in the thickness direction to place one of the support trays at a selected position, a drive unit having a rotation drive unit, and the drive unit outside the disk supported by the support tray. A drive member that moves from a retracted position outside the periphery to a drive position that can drive the disk supported by the support tray at the selected position;
The support tray is provided with an elastically deformable support piece extending from the facing surface toward another adjacent support tray, and the support piece can support a disk supported by the other support tray. It is characterized by being said.

  In this disk storage type disk device, when the distance between the support trays is narrow, the disk is pressed by the support piece provided on the support tray. Therefore, rattling of the disk can be prevented and rattle noise can be easily reduced. Further, when the interval between the selected support tray and another support tray facing the support surface of the support tray is widened, the drive unit moves within the interval without being obstructed by the support piece, and the drive position Can be set to

  As shown in the following embodiments, the drive unit may move between a retracted position and a drive position by a pivoting operation, or may move along a linear locus to move to the retracted position. It may move between driving positions.

  For example, in the present invention, the support piece is formed by bending a part of the support tray. However, the support piece may be formed of a leaf spring material or the like separate from the support tray, and the support piece may be fixed to the opposing surface of the support tray.

  In the present invention, the support piece can support a portion protruding from the support tray of a disk supported by another adjacent support tray.

  For example, a bent portion that is bent toward the other support tray is formed at the front portion of the support piece, and the outer peripheral edge of the disc that is supported by the other adjacent support tray. Can be opposed.

  As described above, when the disc is supported by the portion protruding from the support tray, it is possible to prevent the disc from rattling and to effectively suppress the generation of rattle noise.

  In the present invention, the drive unit moved to the drive position is installed between the selected support tray at the selected position and the first adjacent support tray adjacent to the support surface side of the selected support tray. A space is formed, a second space is formed between the selected support tray and a second adjacent tray adjacent to the opposite surface side of the selected support tray, and the interval between the second spaces is the first space. It is possible to configure such that the disc held on the second adjacent support tray is supported by the support piece provided on the selective support tray.

  Further, in the present invention, the support piece is provided at a position facing the other support tray, and the disk supported by the other support tray adjacent to the support piece by the support piece is used as the other support tray. It may be possible to press against the support surface.

  Since the disc is pressed against the support surface of the support tray by the support piece, the disc can be stably held by the support tray.

  In this case, a space in which the drive unit moved to the drive position is installed is formed between the selected support tray at the selected position and the adjacent support tray facing the support surface side of the selected support tray. The interval between the support trays is set to be narrower than the interval between the spaces except for a portion where the selection support tray and the support tray adjacent to the selection support tray are opposed to each other, and the support pieces face each other at the narrow interval. The disc can be configured to be pressed.

  In the present invention, it is preferable that the support piece is provided at a position that deviates from the movement range of the drive unit when the drive unit moves from the retracted position to the drive position.

  In the disk storage type disk device of the present invention, it is possible to prevent the disk held on the support tray from rattling, and to reduce noise due to disk shake when external vibration is applied.

  FIG. 1 is a front view of a disk storage type disk device according to an embodiment of the present invention as viewed from the front of a housing. FIG. 1 (A) mainly shows a transfer unit in the housing, and FIG. A support tray, a support tray selection means, and a drive unit are shown. FIG. 2 shows a support tray, (A) is a plan view, (B) is a side view when the support tray shown in (A) is viewed from the B direction, and FIGS. 3 and 4 are inside the casing. FIG. 5 is a perspective plan view showing the operation of loading the disc into the support tray, and FIG. 6 is a perspective plan view showing the state where the disc is held on the support tray. It is. 7 and 8 are diagrams for explaining the function of supporting the disc by the support piece provided on the support tray. FIG. 7 is a partial side view of VII in FIG. 6, and FIG. 8 is a side view of FIG. FIG. 9 is a side view showing a modification of the first support piece.

  The disk storage disk device 1 according to the embodiment has a box-shaped housing 2. The housing 2 has a front surface 3, a bottom surface 8, and a ceiling surface 9 shown in FIGS. 1A and 1B, and a rear side surface 4, a right side surface 5, and a left side surface 6 shown in FIG. A slit-like insertion port 11 is opened on the front surface 3, and the disk D is inserted into the housing through the insertion port 11.

  As shown in FIGS. 5 and 6, in the housing 2, a region surrounded by the rear side surface 4, the left side surface 6, the bottom surface 8, and the ceiling surface 9 is a disk storage region 20.

  As shown in FIG. 1B, FIG. 5 and FIG. 6, in the disc storage area 20, three selection shafts 31, 32, 33 are rotatably supported on the ceiling surface 9, and each selection shaft 31 is rotated. , 32 and 33 have a length that is in contact with the bottom surface 8 of the housing 2.

  As shown in FIGS. 1B and 7, spiral selection grooves 35 are formed on the outer peripheral surfaces of the selection shafts 31, 32, and 33. In the spiral shape of the selection groove 35, the selection shafts 31, 32, 33 have a dense pitch portion 35a above and a dense pitch portion 35b below. In the upper dense pitch portion 35a and the lower dense pitch portion 35b, the selection groove 35 is formed with a short pitch, and in the upper dense pitch portion 35a and the lower dense pitch portion 35b, the selection groove 35 has at least 5 turns (5 pitches). ) Is formed above. The selection groove 35 is a sparse pitch portion 35c at the intermediate portion of the selection shafts 31, 32, 33. In this sparse pitch portion 35c, a selection groove is provided between the upper dense pitch portion 35a and the lower dense pitch portion 35b. 35 is formed for one pitch.

  A small gear is integrally provided at the upper ends of the selection shafts 31, 32, and 33, and a ring-shaped gear is provided on the inner surface of the ceiling surface 9, and each small gear meshes with the ring-shaped gear. As shown in FIG. 1B, a drive shaft 36a is rotatably supported on the ceiling surface 9, a transmission gear 36b is integrally formed at the lower end of the drive shaft 36a, and a thin gear 36c is integrally formed at the upper end. The thin gear meshes with the ring gear. When the power of the selection motor (not shown) is applied to the transmission gear 36b, the ring-shaped gear is rotationally driven by the thin gear 36c, and all the selection shafts 31, 32, 33 are rotated synchronously by the ring-shaped gear. . In this embodiment, the selection tray 31, 32, 33, the ring gear, the transmission gear 36b, and the like constitute a support tray selection mechanism.

  The disk storage area 20 is provided with a plurality of support trays 21 each capable of supporting the disk D. In this embodiment, six support trays 21 are provided, and the support trays 21 are stacked in the thickness direction. Each support tray 21 is formed of an elastically deformable metal plate such as a stainless steel strip (SUS304CSP). As shown in FIG. 2A, FIG. 5 and FIG. 6, each support tray 21 has a left side edge 21b facing the left side surface 6 of the housing 2 substantially in parallel and a rear side surface 4 of the housing 2 substantially. It has a rear edge 21c facing in parallel. The inner edge 21a of the support tray 21 directed inward of the housing 2 has a concave curve shape.

  In each support tray 21, a bearing 25A is fixed to the end portion on the X1 side and the end portion on the Y1 side. Further, bearings 25B are fixed to the X2 side ends of the respective support trays 21 and to the Y2 side ends, and the bearings are mounted on the respective support trays 21 inside the corners of the left edge 21b and the rear edge 21c. 25C is fixed. The bearing 25 </ b> A is inserted through the outer periphery of the selection shaft 31, the bearing 25 </ b> B is inserted through the outer periphery of the selection shaft 32, and the bearing 25 </ b> C is inserted through the outer periphery of the selection shaft 33.

  Each of the bearings 25A, 25B, and 25C is integrally formed with a latching portion, and this latching portion is slid into a selection groove 35 formed on the outer periphery of each of the selection shafts 31, 32, and 33. It is locked freely. As a result, the six support trays 21 are hooked on the adjacent pitches of the selection grooves 35. When the selection shafts 31, 32, and 33 are rotated counterclockwise in FIG. 6, the support tray 21 is fed downward one by one along the selection shafts 31, 32, and 33, and the selection shafts 31, 32, and 33 are turned clockwise. When rotating in the direction, the support tray 21 is fed upward one by one along the selection shafts 31, 32, 33. Any one of the support trays 21 hooked on the sparse pitch portion 35c of the selection groove 35 reaches the selection position (a) shown in FIGS. 1B and 7 and is in the selection position (a). The space | interval of the tray 21 and the support tray 21 located in the dense pitch part 35b below it is widened.

  As shown in FIG. 1B, the support tray 21 that has reached the selected position (a) is installed at the same height as the insertion slot 11.

  As shown in FIG. 2B, the lower surface of the support tray 21 facing the Z2 direction is a support surface 21e, and the upper surface facing the Z1 direction is a facing surface 21f. In each support tray 21, the disk D is placed on the support surface 21 e of the support tray 21. In FIG. 2A, the support region R with which the disk D abuts on the support surface 21e of the support tray 21 is hatched for easy understanding.

  As shown in FIGS. 2A and 2B, a first support piece 211 and a second support piece 212 are integrally formed on the support tray 21. As shown in FIG. 2B, the first support piece 211 and the second support piece 212 are formed to be bent so as to extend upward (Z1 direction) from the facing surface 21f of the support tray 21.

  The first support piece 211 extends outward from the support region R of the support tray 21. The first support piece 211 is formed in an elongated shape so that the width dimension gradually decreases from the bent base portion 211a, which is a boundary with the support region R, toward the tip. A bent portion 211b that is bent upward (in the Z1 direction) is formed at the tip of the first support piece 211. As shown in FIG. 2B, the first support piece 211 can hit the outer peripheral portion of the disk D supported by the other support tray 21 located above the support tray 21 and bend. The portion 211b can be opposed to the outer peripheral edge of the disk D positioned above. In this opposed state, the bent portion 211b can contact the outer peripheral edge of the disk D or face it with a slight gap.

  The second support piece 212 is located in the support region R of the support tray 21. A notch 21g is formed in the support tray 21 in the support region R, and a second support piece 212 is formed integrally with the support tray 21 in the notch 21g. The second support piece 212 has an elongated shape in which the width dimension gradually decreases from the bent base portion 212a toward the tip portion 212b. The support trays 21 located in the dense pitch portion 35a above the selection groove 35 or the dense pitch portion 35b below are close to each other. At this time, the second support piece 212 supports the support tray 21 on the support tray 21 located thereon. The disc D being pressed is pressed upward and pressed against the support surface 21 e of the support tray 21.

  As shown in FIG. 2B, the first support piece 211 and the second support piece 212 protrude upward from the facing surface 21f of the support tray 21, and the respective front portions approach the facing surface 21f. It can be elastically deformed in the direction. With no force acting on the first support piece 211 and the second support piece 212, the height dimension from the facing surface 21f to the bent base end of the bent portion 211b of the first support piece 211 is h1. The height dimension from the facing surface 21f to the tip of the second support piece 212 is h2, and the height dimension h1 is set larger than h2.

  Since the first support piece 211 and the second support piece 212 are integrally bent from the support tray 21, the first support piece 211 and the second support piece 212 are separate from the support tray 21 for the first support piece 211 and the second support piece 212. This member becomes unnecessary, and the number of parts can be reduced. However, in the present invention, the first support piece 211 and the second support piece 212 are configured as separate parts from the support tray 21 and are fixed to the facing surface 21f of the support tray 21 by means such as welding. It may be a thing.

  As shown in FIGS. 5 and 6, in each of the support trays 21, a holding member 22 is rotatably supported on the outer periphery of the bearing 25 </ b> A, and a holding claw 22 a is formed on the holding member 22. Has been. A holding member 23 is rotatably supported on the outer periphery of the bearing 25B, and a holding claw 23a is formed on the holding member 23. A holding member 24 is rotatably supported on the outer periphery of the bearing 25C, and a holding claw 24a is integrally formed on the holding member 24.

  A tension coil spring 26a is hung between the holding member 22 and the support tray 21, and the holding member 22 is urged counterclockwise. As shown in FIG. 6, the holding member 22 is in the holding position when it is rotated counterclockwise, and the disk D can be held between the support tray 21 and the holding claw 22a. A tension coil spring 26b is hung between the holding member 23 and the support tray 21, and the holding member 23 becomes a holding position when rotated clockwise, and between the holding claw 23a and the support tray 21, The disk D can be held.

  A tension coil spring 26c is hung between the holding member 24 and the support tray 21, and the holding member 24 is urged clockwise. In FIG. 5, the holding member 24 is most rotated clockwise, and when the disk D is held on the support tray 21 as shown in FIG. 6, the holding member 24 is pushed by the outer peripheral edge of the disk D. Slightly turns counterclockwise. As shown in FIG. 6, the holding member 24 is in the holding position, and the disk D can be held between the holding claw 24 a and the support tray 21.

  At the corner between the rear side surface 4 and the left side surface 6 of the housing 2, a loading detection unit 28 is provided. In the loading detection unit 28, the light emitting element and the light receiving element face each other, and as shown in FIG. 5, if the support tray 21 reaching the selected position (a) does not hold the disk D, the holding member 24 is used. The detection unit 24b provided in is inserted between the light receiving element and the light emitting element, and the detection output of the loading detection unit 28 is OFF. As shown in FIG. 6, when the disk D is held on the support tray 21, the holding member 24 is pushed by the outer peripheral edge of the disk D and slightly rotates counterclockwise. Exiting from the detection unit 28, the detection output is turned ON.

  As shown in FIGS. 5 and 6, a first holding release member 37 is provided inside the left side surface 6 of the housing 2. When the first holding release member 37 moves in the Y2 direction, the holding member 22 is rotated clockwise by the first holding release member 37, and the holding claw 22a moves to the outside of the outer peripheral edge of the disk D. To the holding release position. A second holding release member 38 is provided inside the rear side surface 4. When the second holding release member 38 moves in the X1 direction, the holding member 23 and the holding member 24 are rotated counterclockwise by the second holding release member 38, and the holding claws 23a and 24a are moved to the outer periphery of the disc. It moves to the outside and becomes a holding position.

  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), or the like.

  As shown in FIGS. 3 and 4, a unit support base 41 is provided in the housing 2. The unit support base 41 has a shape extending from the inner side of the front surface 3 to the inner side of the right side surface 5. The edge 41a of the unit support base 41 facing inward of the housing 2 has a concave curve shape, and the outer edge of the disk D held on each support tray 21 in the disk storage area 20 has an outer peripheral edge from the edge 41a. It is located slightly inside.

  A plurality of dampers 48, which are elastic support members, are fixed on the bottom surface 8 of the housing 2. The damper 48 has a liquid or gas such as oil sealed in a flexible bag body such as rubber. Alternatively, a compression coil spring is combined with the bag. A plurality of support shafts 42 are fixed downward on the unit support base 41, and each support shaft 42 is supported by the damper 48.

  The unit support base 41 is provided with a restraint shaft 43 projecting in the Y2 direction and a pair of restraint shafts 44, 44 projecting in the Y1 direction. A restraining member 45 that moves in the X1-X2 direction is provided inside the rear side surface 4 of the housing 2, and a restraining member 46 that moves in the X1-X2 direction is provided inside the front surface 3. The restraint shaft 43 is held by the restraint member 45, and the restraint shafts 44 and 44 are held by the restraint member 46.

  As shown in FIG. 1B, the restraining member 46 has a pair of restraining holes 47 and 47. Each restraint hole 47 includes a descending restraint portion 47a extending to the X1 side, a lifting portion 47b located above the descending restraint portion 47a, and a clearance having a large opening area located on the X2 side from the lifting portion 47b. Part 47c. The restraint shafts 44 and 44 are inserted into restraint holes 47 and 47, respectively. Further, the same restraining hole is formed in the restraining member 45 located inside the rear side surface 4, and the restraining shaft 43 is inserted into the restraining hole.

  As shown in FIG. 1B, when the restraining member 46 is moved in the X2 direction, the restraining shafts 44 and 44 are held by the descending restraining portions 47a and 47a, and the damper 48 is crushed and the unit support base 41 is pushed. The drive unit 50 supported on the unit support base 41 is also lowered. As shown in FIG. 1B, at this time, the drive unit 50 is located further below the lower surface of the disk D inserted from the insertion slot 11.

  As shown in FIGS. 3 and 4, the drive unit 50 is supported on the unit support base 41. The drive unit 50 has an elongated drive base 51. A support shaft 52 is fixed downward at a position close to the rear end 51b of the drive base 51 and close to the left side surface 51a. The support shaft 52 is rotatably supported by the unit support base 41. ing. In FIG. 3, the drive unit 50 is placed on the right side of the unit support base 41 and is in a retracted position away from the outer peripheral edge of the disk D in the disk storage area 20. In FIG. 4, the drive unit 50 is installed in the drive position by rotating clockwise from the retracted position along the XY plane. The drive unit 50 in the drive position enters between the disk D held on the support tray 21 in the selected position (a) and the disk D positioned therebelow in the disk storage area 20.

  In the drive unit 50, a rotation drive unit 53 is provided inside a front end 51c located on the free end side of the drive base 51. The rotary drive unit 53 includes a spindle motor 54 (see FIGS. 1B and 7) fixed on the drive base 51 and a turntable 55 fixed to a drive shaft 54a of the spindle motor 54. Have. The turntable 55 has a flange portion 55a and a convex portion 55b protruding upward from the center portion of the flange portion 55a.

  A clamp mechanism is provided in the turntable 55. This clamp mechanism has clamp claws 55c (see FIG. 7) protruding radially from the outer periphery of the convex portion 55b. When the clamp claw 55c retracts into the convex portion 55b, the clamp mechanism is in an unclamped state, and the convex portion 55b can enter the center hole Da of the disk D. When the convex portion 55b enters the center hole Da of the disc D from below and the clamp claw 55c protrudes, the peripheral portion of the center hole Da of the disc D is sandwiched between the flange portion 55a and the clamp claw 55c. Clamped.

  An optical head 56 is provided on the drive base 51 of the drive unit 50. The optical head 56 has an objective lens 56 a facing the recording surface of the disk D clamped on the turntable 55. The optical head 56 incorporates a light emitting element that provides detection light (laser beam) to the objective lens 56a, a light receiving element that detects light reflected from the recording surface of the disk and returned through the objective lens 56a.

  A guide member 57 extending along the right side surface 51d is fixed on the drive base 51, and a feed screw shaft 58 extending along the left side surface 51a is rotatably supported. The guide member 57 and the feed screw shaft 58 extend parallel to each other. The optical head 56 is provided with a sliding portion 56 b, and the sliding portion 56 b is slidably supported by the guide member 57. The optical head 56 is provided with an engaging portion 56 c, and this engaging portion 56 c is engaged with the screw groove of the feed screw shaft 58. Therefore, the optical head 56 is moved between the outer peripheral position away from the turntable 55 and the outer peripheral position approaching the turntable 55 as shown in FIGS. 4 and 5 by the rotational force of the feed screw shaft 58. Moved.

  A thread motor 59 is mounted on the drive base 51. The thread motor 59 is a stepping motor such as a pulse motor. The feed screw shaft 58 is formed integrally with the rotating shaft of the thread motor 59. Alternatively, the feed screw shaft 58 is directly connected to the rotation shaft of the thread motor 59 via a joint.

  As shown in FIGS. 3 and 4, the unit support base 41 is formed with an arc guide hole 41 b penetrating vertically. The center of curvature of the arc locus at the center of the width of the arc guide hole 41 b coincides with the axis of the support shaft 52. A drive shaft 61 is fixed to the lower end of the drive base 51 on the rear end 51b side. The drive shaft 61 is slidably inserted into the arc guide hole 41b, and the drive shaft 61 is located below the unit support base 41. Protruding to

  A drive member 62 is supported on the lower surface of the unit support base 41 so as to be slidable in the Y1-Y2 direction. As shown in FIG. 4, the drive member 62 is formed with a drive slot 62 a and a relief portion 62 b continuously. A drive mechanism that is driven by the power of the motor is provided on the upper surface of the bottom surface 8 of the housing 2, and a drive pin 63 provided in the drive mechanism is inserted into the drive elongated hole 62a and the escape portion 62b. In this embodiment, a drive unit 62, a drive pin 63, and the drive mechanism constitute a unit drive unit.

  The drive shaft 61 provided on the drive base 51 of the drive unit 50 is operated by a drive member 62. With the drive pin 63 in the drive elongated hole 62a, the drive pin 63 drives the drive member. When 62 is moved in the Y2 direction, the drive shaft 61 is pushed in the Y2 direction by the drive member 62, and the drive unit 50 is rotated to the retracted position as shown in FIG. When the drive member 62 is moved in the Y1 direction by the drive pin 63, as shown in FIG. 4, the drive shaft 61 is pushed in the Y1 direction by the drive member 62 and rotated clockwise along the arc guide hole 41b. The drive unit 50 rotates to the drive position shown in FIG. Further, when the disk D is clamped by the turntable 55 and is driven to rotate, the drive pin 63 moves into the escape portion 62b, the restraint of the drive member 62 by the drive pin 63 is released, and the drive member 62 is supported. The unit support base 41 is elastically supported by the damper 48.

  As shown in FIGS. 3 and 4, a fixed guide 65 is fixed to the unit support base 41. The fixed guide 65 is made of a synthetic resin material or the like, and its outer peripheral edge serves as a guide portion 65a. The guide portion 65 a is formed along an arc locus having a center of curvature at the axis of the support shaft 52, which is a rotation fulcrum of the drive unit 50.

  A protrusion 66 is fixed to the front end 51c of the drive base 51 of the drive unit 50, and a roller 67 is rotatably supported at the tip of the protrusion 66. As shown in FIG. 3, when the drive unit 50 is positioned on the unit support base 41, the roller 67 is engaged with the guide portion 65 a of the fixed guide 65. A groove having a V-shaped cross section is formed around the roller, and this groove is movably fitted to the guide portion 65a, whereby the free end side of the drive unit 50 in the retracted position as shown in FIG. Shaking up and down is suppressed.

  A movable guide 71 is provided on the unit support base 41 inside the front surface 3 of the housing 2. The movable guide 71 is rotatably supported on a shaft 72 fixed to the unit support base 41. The movable guide 71 is formed of a metal plate or a synthetic resin plate, and a side edge portion facing inward of the housing 2 is an arcuate guide portion 71a. As shown in FIG. 3, a holding recess 71b that is continuous with the guide portion 71a is formed on the free end side of the movable guide 71.

  As shown in FIG. 4, two link members 73 and 74 are connected to each other and slidable on the unit support base 41 inside the right side surface 5 of the housing 2. When the drive member 62 moves in the Y2 direction, the two link members 73 and 74 are operated by the drive member 62, and the movable guide 71 is moved to the disk in the disk storage area 20 as shown in FIG. The retracted position is set so as to be separated from the outer peripheral edge of D and approach the front surface 3 of the housing 2.

  When the drive member 62 moves in the Y1 direction, the link members 73 and 74 are operated by the drive member 62, and the movable guide 71 rotates clockwise from the retracted position shown in FIG. At this time, the movable guide 71 is set so that the guide portion 71 a coincides with an arc locus centering on the axis of the support shaft 52. Then, a roller 67 provided at the front end of the drive unit 50 that rotates clockwise from the retracted position is transferred from the guide portion 65a of the fixed guide 65 to the guide portion 71a of the movable guide 71, and a groove on the outer periphery of the roller 67 is formed. Engaging with the guide portion 71a, the free end side of the drive unit 50 moves along the guide portion 71a while being restricted from rattling up and down. Then, as shown in FIG. 4, when the drive unit 50 reaches the drive position, the movable guide 71 further rotates clockwise, and the roller 67 is held by the holding recess 71 b at the tip of the movable guide 71.

  As shown in FIG. 1B, FIG. 5, and FIG. 6, a transfer unit 80 is provided in the housing 2. The transfer unit 80 is provided with a unit frame 81, and a roller shaft 82 is rotatably supported in the unit frame 81. The roller shaft 82 includes two transfer rollers 83, spaced apart in the axial direction. 84 is provided. As shown in FIG. 1A, a clamping member 85 is provided in the unit frame 81 so as to be opposed to the upper side of the transfer rollers 83 and 84, and the transfer rollers 83 and 84 and the clamping member 85 are pressed against each other by a spring force. Has been.

  As shown in FIGS. 5 and 6, in the housing 2, a support shaft 86 is fixed inside the left side surface 6, and an end portion on the X1 side of the unit frame 81 is rotatably supported by the support shaft 86. Has been. Then, by a unit switching mechanism (not shown), the transfer unit 80 is rotated from the standby position approaching the inside of the front surface 3 as shown in FIG. 6 to the transfer operation position rotated counterclockwise as shown in FIG. Be made. When the transfer unit 80 is at the standby position shown in FIG. 6, the transfer unit 80 is separated from the outer peripheral edge of the disk D provided in the disk storage area 20. When the transfer unit 80 is at the transfer operation position shown in FIG. It enters into the storage area 20. As shown in FIG. 1A, the transfer unit 80 is set to a height at which the disk D inserted from the insertion port 11 can be clamped by the transfer rollers 83 and 84 and the clamping member 85.

  As shown in FIGS. 3 and 4, a roller motor 87 is provided on the bottom surface 8 of the housing 2, and the power of the roller motor 87 is decelerated by a reduction gear 88 and is rotatably supported by a support shaft 86. The transmission gear 89 is provided. Further, the rotational force of the transmission gear 89 is applied to the roller shaft 82, and the transfer rollers 83 and 84 are rotationally driven. Therefore, the transfer rollers 83 and 84 can be rotated by the roller motor 87 independently of the rotation operation of the transfer unit 80.

Next, the operation of the disk storage type disk device 1 will be described.
In the plurality of support trays 21 provided in the disk storage area 20, as shown in FIG. 6, the holding member 22 is rotated counterclockwise by the tension coil spring 26a, and the holding members 23 and 24 are pulled. The coil springs 26b and 26c are rotated clockwise. Therefore, when the disk D is supplied to the support tray 21, the outer peripheral edge of the disk D is formed between the support tray 21 and the holding claws 22a, 23a, 24a formed on the holding members 22, 23, 24. Is held between.

  When the disk D is not supplied to the support tray 21, the holding member 22 is rotated counterclockwise, and the holding member 23 is rotated clockwise. In the support tray 21 that is the same as the holding support tray 21 but is not supplied with the disk D, as shown in FIG. 5, the holding member 24 rotates slightly clockwise from the disk holding position shown in FIG. It is moved.

  When the support tray 21 located in the disk storage area 20 is moved to the selected position (a), the drive unit 50 is moved to the retracted position as shown in FIG. 3, and the transfer unit 80 is in the standby state shown in FIG. Moved to position. In this state, the ring gear provided on the ceiling surface 9 rotates, and the selection shafts 31, 32, and 33 are rotated in synchronization. Then, the support tray 21 is moved up and down by the selection groove 35 provided in each of the selection shafts 31, 32, 33, and the support tray 21 to be selected is stopped at the selection position (a).

  As shown in FIG. 3, when the drive unit 50 is in the retracted position, as shown in FIG. 1B, the restraining member 46 provided inside the front surface 3 moves in the X2 direction, and the unit support base Restraining shafts 44, 44 provided at the front end of 41 are held by descending restraining portions 47 a, 47 a of the restraining holes 47, 47. The restraining member 45 provided on the inner side of the rear side surface 4 of the housing 2 is also moved in the X2 direction, and the restraining shaft 43 provided at the rear end of the unit support base 41 is similarly a descending restraining portion of the restraining member 45. Is held in. Therefore, the unit support base 41 is lowered and constrained so as to approach the bottom surface 8.

  When inserting a disk, the selection shafts 31, 32, and 33 are driven, and the empty support tray 21 that does not hold the disk D is moved to the selection position (a). When the empty support tray 21 stops at the selected position (a), as shown in FIG. 4, the drive member 62 provided on the lower surface of the unit support base 41 moves in the Y1 direction, and the movable guide 71 rotates in the clockwise direction. It stops at a position where it can move and guide the roller 67. At the same time, the drive unit 50 rotates clockwise from the retracted position, the roller 67 is transferred from the fixed guide 65 to the movable guide 71, and the roller 67 rolls on the guide portion 71 a of the movable guide 71. When the drive unit 50 reaches the drive position shown in FIGS. 4 and 5, the movable guide 71 further rotates clockwise, and the roller 67 is held by the holding recess 71 b of the movable guide 71.

  When the insertion detection unit (not shown) detects that the disk D has been inserted from the insertion slot 11, the roller motor 87 is started, and the transfer rollers 83 and 84 in the transfer unit 80 are driven in the carry-in direction. Is held between the transfer rollers 83 and 84 and the holding member 85 and carried into the housing 2. When the disk D is loaded to some extent, the transfer unit 80 rotates from the standby position shown in FIG. 6 to the transfer operation position shown in FIG. 5, and the disk D is transferred toward the support tray 21 in the selected position (a). Is done. As shown in FIG. 5, the holding member 22 located at a position close to the insertion slot 11 at this time is rotated in the clockwise direction so as not to hinder the loading of the disk D.

  When the disk D is supplied to the support tray 21 at the selected position (a), the holding member 24 is pushed by the disk D and rotates counterclockwise, and the detection unit 24b of the holding member 24 is loaded. The detection output of the loading detection unit 28 is switched to ON.

  When the detection output of the loading detection unit 28 is turned on, the restraining member 46 shown in FIG. 1B moves in the X1 direction, and the restraining shafts 44 and 44 are guided to the lifting portions 47b and 47b of the restraining holes 47 and 47. . Similarly, the restraining member 45 positioned rearward also moves in the X1 direction, and the restraining shaft 43 is also lifted by the lifting portion of the restraining member 45. Therefore, the unit support base 41 is lifted, and the convex portion 55b of the turntable 55 provided in the drive unit 50 enters the center hole Da of the disk D held on the support tray 21 at the selected position (a) from below. . Further, the clamp mechanism provided on the turntable 55 operates, the clamp claw 55c protrudes from the convex portion 55b of the turntable 55, and the peripheral portion of the center hole Da of the disk D is the flange portion 55a of the turntable 55 and the clamp claw 55c. It is pinched by.

  Thereafter, while the transfer rollers 83 and 84 rotate in the loading direction, the transfer unit 80 returns from the transfer operation position shown in FIG. 5 to the standby position shown in FIG. 6, and the transfer rollers 83 and 84 move away from the disk D. Further, the restraining member 46 shown in FIG. 1 (B) moves in the X1 direction, the restraining shafts 44 and 44 are guided to the relief portions 47c and 47c of the restraining hole 47, and the restraint of the restraining shafts 44 and 44 is released. . Similarly, the restraint member 45 moves in the X1 direction, and the restraint of the restraint shaft 43 is released. As a result, the unit support base 41 is elastically supported by the damper 48. At the same time, the holding member 23 and the holding member 24 shown in FIG. 5 are rotated counterclockwise, and the holding of the disk D on the support tray 21 is released.

  Therefore, the disc D clamped to the turntable 55 is separated downward from the support tray 21 at the selected position (a) and can be rotated together with the turntable 55.

  When ejecting the disk D that has finished rotating, the rotation of the turntable 55 is stopped, the restraining members 45 and 46 are moved in the X2 direction to lift the unit support base 41, and the disk D clamped to the turntable 55 Is pressed against the support surface 21e of the support tray 21 at the selected position (a). Then, the transfer unit 80 is moved to the transfer operation position shown in FIG. 5 while rotating the transfer rollers 83 and 84 in the discharging direction, and the disk D is held between the transfer rollers 83 and 84 and the holding member 85.

  After that, the clamp of the disk D on the turntable 55 is released, and the holding member 23 and the holding member 24 are rotated clockwise, and the holding claw 23a and the holding claw 24a are attached to the support surface 21e of the support tray 21. The installed disk D is held. Further, the restraining members 45 and 46 are moved in the X2 direction, the restraining shafts 44 and 44 are held by the descending restraining portions 47a and 47a of the restraining holes 47 and 47, and the restraining shaft 43 is similarly held by the descending restraining portion, The convex portion 55 b of the turntable 55 is extracted downward from the center hole Da of the disk D. Then, the transfer rollers 83 and 84 are rotated in the carry-out direction, and the transfer unit 80 is moved to the standby position shown in FIG. 6 to eject the disk D from the insertion slot.

  When the disk D held on the support tray 21 located in the disk storage area 20 is rotationally driven, the drive unit 50 is in the retracted position and the transfer unit 80 is in the standby position, and the selected shaft 31, 32 and 33 are driven to move the support tray 21 holding the disk D to the selected position (a). Then, the drive unit 50 is rotated and moved to the space between the support tray 21 at the selected position (a) and the support tray 21 adjacent below it, and set to the drive position shown in FIG.

  As shown in FIGS. 5 and 6, when the drive unit 50 rotates toward the drive position, the first support piece 211 and the second support piece 212 provided on each support tray 21 are driven. It is located outside the area where the unit 50 rotates. Therefore, as shown in FIG. 7, when the drive unit 50 enters under the support tray 21 at the selected position (a), the other support tray 21 adjacent to the lower side of the support tray 21 at the selected position (a). The first support piece 211 and the second support piece 212 do not hit the drive unit 50.

  Then, the unit support base 41 is lifted so that the convex portion 55 b of the turntable 55 enters the center hole Da of the disk D held on the support tray 21, the clamp pawl 55 c protrudes, and the disk D is placed on the turntable 55. Clamp. Further, the holding member 22 is rotated in the clockwise direction, and the holding members 23 and 24 are rotated in the counterclockwise direction to release the holding of the disk by the holding claws 22a, 23a, and 24a. Further, the restraining members 45 and 46 are moved in the X direction to release the restraint with respect to the restraining shafts 43 and 44, and the unit support base 41 is set to be elastically supported by the damper 48.

  FIG. 7 shows the positional relationship between the six support trays 21. In FIG. 7, 21A, 21B, 21C, 21D, 21E, and 21F are arranged in order from the bottom to the uppermost support tray that is closest to the ceiling surface 9 from the lowermost support tray that is closest to the bottom surface 8. Show. In addition, the disks supported by the respective support trays are indicated by D1, D2, D3, D3, D5, and D6 in order from the bottom.

  In FIG. 7, the third support tray 21C from the bottom stops at the selection position (a), and this support tray 21C is the selection support tray. The lowermost support tray 21A and the second lower support tray 21B are positioned in the dense pitch portion 35b below the selection groove 35, and the support trays 21A and 21B are close to each other. In the state of FIG. 7, the support tray 21B is a first adjacent tray 21B that is adjacent to and is opposed to the lower side of the selected support tray 21C. Three support trays 21D, 21E, and 21F from the fourth to the top are located in the dense pitch portion 35a above the selection groove 35, and the three support trays 21D, 21E, and 21F are Are close to each other. In the state of FIG. 7, the support tray 21 </ b> D is a second adjacent support tray that is adjacent and opposed above the selected support tray 21 </ b> C.

  The space between the support surface 21e of the selective support tray 21C and the opposing surface 21f of the first adjacent support tray 21B positioned below the first support space 21c is a first space, and the height interval is H1. The space between the opposing surface 21f of the selective support tray 21C and the support surface 21e of the second adjacent support tray 21D positioned thereon is a second space, and the height interval is H2. The first space interval H1 is wider than the second space interval H2. In addition, the opposing spacing between the support tray 21A and the supporting tray 21B located in the lower dense pitch portion 35b and the opposing spacing between the support trays 21D, 21E, and 21F located in the upper dense pitch portion 35a are both the second. It is narrower than space.

  In FIG. 7, the drive unit 50 is in the drive position, and this drive unit 50 is installed in the first space between the selective support tray 21C and the first adjacent support tray 21B. Then, the holding members 22, 23, and 24 of the selection support tray 21 </ b> C rotate to the holding release position to release the holding of the disk D <b> 3, and the disk D <b> 3 is clamped to the turntable 55 of the drive unit 50. Further, the restraint of the unit support base 41 by the restraining members 45 and 46 is released, and the unit support base 41 is elastically supported by the damper 48.

  As shown in FIG. 7, the tip of the first support piece 211 formed on the selective support tray 21C supports the disk D4 supported on the second adjacent support tray 21D located above from the lower side. Yes. Further, the bent portion 211b of the first support piece 211 faces the outer peripheral edge of the disk D4.

  The disk D4 supported by the second adjacent support tray 21D is supported from below by the first support piece 211 at a portion protruding from the support region R. Therefore, the disk D4 can be maintained in a horizontal posture without the portion protruding from the support region R being inclined downward.

  As a result, the disk D4 does not hit the disk D3 that is rotationally driven by the turntable 55 under the disk D4. Further, when the disk D3 is discharged out of the housing 2, the transfer unit 80 rotates counterclockwise as shown in FIG. 5 while the disk D3 is supported by the support surface 21e of the selective support tray 21C. The disk D3 is clamped by the transfer rollers 83 and 84 and the clamping member 85. At this time, the disk D4 positioned on the disk D4 is in a horizontal posture. It can be rotated to the transfer operation position without hitting.

  Further, since the bent portion 211b of the first support piece 211 faces the outer peripheral edge of the disk D4, it is possible to prevent the disk D4 from moving in a direction away from the second adjacent support tray 21D.

  Since the interval between the support tray 21E located in the upper dense pitch portion 35a and the second adjacent support tray 21D located therebelow is narrowed, the disk D5 supported by the support surface 21e of the support tray 21E The first support piece 211 is elastically deformed downward by hitting the tip of the first support piece 211 provided on the second adjacent support tray 21D. Due to the reaction force, the disk D5 is pushed upward, and the bent portion 211b faces the outer peripheral edge of the disk D5. Accordingly, the disk D5 supported by the support tray 21E is also held on the support tray 21E while maintaining a horizontal posture.

  9A, the first support piece 211 is curved so as to protrude downward, and the bent portion 211b is positioned above the facing surface 21f of the support tray 21. You may comprise as follows. In this case, the first support piece 211 provided on the second adjacent support tray 21D located in the dense pitch portion 35a of the selection groove 35 supports the outer peripheral edge of the disk D5 thereon from below, and the disk D5. The disk D4 supported by the second adjacent support tray 21D is pushed downward by the first support piece 211 that is bent downward upon hitting. The disk D4 pushed down by the first support piece 211 is pressed against the holding claw 22a of the holding member 22 and the holding claw 23a of the holding member 23, so that the disk D4 is surely placed under the second adjacent support tray 21D. Retained.

  The disk support operation by the first support piece 211 is the same in the relationship between the disk D6 supported on the support surface 21e of the uppermost support tray 21F and the support tray 21E below the disk D6. The same applies to the relationship between the lowermost support tray 21A located in the dense pitch portion 35b below the selection shaft 35 and the disk D2 located thereon.

  Note that the disk D1 supported on the support surface 21e of the lowermost support tray 21A cannot be supported from below by the first support piece because the support tray is not located below the disk D1. However, the first support piece 211 provided on the support tray 21A has a curved shape shown in FIGS. 9A and 9B, so that the first support piece 211 provided on the support tray 21A can The disk D1 can be pressed downward, and the disk D1 can also be held stably.

  On the other hand, since the interval between the selected support tray 21C and the first adjacent support tray 21B located below it is widened up and down, the first support piece 211 provided on the first adjacent support tray 21B is The disk D3 clamped on the turntable 55 is not hit.

  FIG. 8 shows a support operation of the second support pieces 212 of the three support trays 21D, 21E, and 21F located in the dense pitch portion 35a above the selection groove 35.

  As shown in FIG. 8, the support trays other than the selected support tray 21C at the selected position (a) are opposed to each other with the facing interval narrowed. This also applies to the relationship between the support tray 21A and the support tray 21B located in the dense pitch portion 35b below the selection groove 35, as shown in FIG.

  As described above, in the support trays 21D, 21E, and 21F that are close to each other except the selected position (a), the disk D on the top is pressed from below by the second support piece 212 provided on the support tray 21, and this The disk D is brought into close contact with the support region R of the support surface 21e of the support tray 21. When the disk is brought into close contact with the support surface 21e, the disk D is securely held on the lower surface of the support tray 21.

  In this way, the disk D is supported by the first support piece 211 and the second support piece 212, thereby preventing rattling of the disk D when a vehicle body vibration or the like is applied and reducing rattle noise. it can.

  Note that only one of the first support piece 211 and the second support piece 212 may be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a disk storage type disk device according to an embodiment of the present invention as viewed from the front of a housing, wherein (A) mainly shows a transfer unit in the housing, and (B) mainly shows a support tray and a support. A tray selection means and a drive unit are shown. FIG. 2 shows a support tray, (A) is a plan view, (B) is a side view when the support tray of (A) is viewed from the B direction, A perspective plan view of the disk storage type disk device showing a state where the drive unit is in the retracted position, A perspective plan view of the disk storage type disk device showing a state in which the drive unit is in the drive position; A perspective plan view of a disk storage type disk device showing a disk carrying-in operation; A perspective plan view of a disk storage type disk device showing a state in which the disk is held on the support tray; 6 shows a state in which the disc is supported by six support trays, and is a partial side view of FIG. FIG. 9 shows a support tray adjacent to the upper side, and is a partial side view of FIG. 6 viewed from the direction of arrow VIII. The side view which shows the modification of a 1st support piece,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc storage type disk apparatus 2 Housing | casing 3 Front surface 4 Rear side edge 5 Right side surface 6 Left side surface 8 Bottom surface 9 Ceiling surface 11 Insertion slot 20 Disc storage area 21 Support trays 22, 23, 24 Holding members 22a, 23a, 24a Holding claws 31, 32, 33 Selection shaft 41 Unit support base 45, 46 Restraining member 48 Damper 50 Drive unit 51 Drive base 52 Support shaft 53 Rotation drive unit 54 Spindle motor 55 Turntable 56 Optical head 59 Thread motor 65 Fixed guide 71 Movable guide 80 Transfer unit 83, 84 Transfer roller 211 First support piece 211b Bent part 212 Second support piece D Disk R Support area

Claims (8)

A support tray having a support surface for supporting the disc and a surface opposite to the support surface; a holding member for holding the disc supported by the support surface; and a plurality of the support trays arranged in the thickness direction of the disc. Support tray selection means for moving one of the support trays to a selected position by moving in the thickness direction, a drive unit having a rotation drive unit, and the drive unit outside the outer peripheral edge of the disk supported by the support tray A drive member that moves from the retracted position to a drive position that can drive the disk supported by the support tray at the selected position,
The support tray is provided with an elastically deformable support piece extending from the facing surface toward another adjacent support tray, and the support piece supports a disk supported by the other adjacent support tray. A disc storage type disc device characterized by being made possible.   2. The disc storage type disc device according to claim 1, wherein the support piece is formed by bending a part of the support tray.   3. The disk storage type disk device according to claim 1, wherein the support piece can support a portion of the disk supported by another adjacent support tray that protrudes from the support tray. 4.   A bent portion that is bent toward the other support tray is formed at the front portion of the support piece, and this bent portion faces the outer peripheral edge of the disk supported by the other adjacent support tray. 4. The disk storage disk device according to claim 3, wherein the disk storage disk device is possible.   A first space in which the drive unit moved to the drive position is installed is formed between the selected support tray at the selected position and the first adjacent support tray adjacent to the support surface side of the selected support tray. A second space is formed between the support tray and the second adjacent tray adjacent to the opposing surface side of the selective support tray, and the interval between the second spaces is set to be narrower than the interval between the first spaces. 5. The disk storage type disk device according to claim 1, wherein the disk held on the second adjacent support tray is supported by a support piece provided on the selective support tray.   The support piece is provided at a position facing the other support tray, and the disk supported by the other support tray is pressed against the support surface of the other support tray by the support piece. The disk storage type disk device according to claim 1 or 2, wherein   A space in which the drive unit moved to the drive position is installed is formed between the selected support tray at the selected position and the adjacent support tray facing the support surface side of the selected support tray. And the space between the support trays is set to be narrower than the space between the spaces except for the portion facing the support tray adjacent to the selected support tray, and the support pieces press the disks facing the narrow space. The disc storage type disc device according to claim 6.   The disk storage mold according to any one of claims 1 to 7, wherein the support piece is provided at a position out of a movement range of the drive unit when the drive unit moves from the retracted position to the drive position. Disk unit.

Images