JP2009199681A - Disk drive - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a "disk drive" that reliably makes a rotation drive section hold a disk positioned by a positioning section, and that rotates the disk while an outer peripheral edge of the disk is sufficiently kept away from the positioning section. <P>SOLUTION: When the disk is supported by the rotation drive section, a unit supporting base 13 is pushed in a Y2 direction by a pressing and inclining section 176 of a first regulating member 170, and the unit supporting base 13 is moved in the Y2 direction within a range of elastic deformation of a damper which supports the unit supporting base 13. Accordingly, a center hole of the disk positioned by the positioning section is reliably held at the rotation drive section. When a pressing force to the unit supporting base 13 by the pressing and inclining section 176 is released after the disk is held, the unit supporting base 13 is returned to a neutral supporting position. Consequently, it is possible to rotate the disk at a position apart from the positioning section. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a disc device in which a disc is positioned by a positioning portion provided in a housing hitting a peripheral portion of the disc, and a central portion of the disc is held by a rotary drive unit.

  In a disk device loaded with a CD or DVD for in-vehicle use, a disk inserted from an insertion opening opened in the housing is transferred toward the housing by a transfer mechanism. The disk transferred into the housing is positioned by the peripheral edge of the disk abutting against a positioning portion provided in the housing. Then, the center hole of the positioned disc is fitted into the rotation driving unit, and the disc is held by the rotation driving unit and is driven to rotate.

Further, in a disk selection type disk device, a plurality of disk supports are provided in a stack in a housing, and a disk is supported on each disk support. Usually, the disk support is provided with a positioning part, and the outer periphery of the disk is abutted against the positioning part, whereby the disk support and the disk are positioned relative to each other. When one of the disk supports is selected, the center hole of the disk supported by the disk support is held by the rotation drive unit, and the disk is rotated at a position slightly separated from the disk support. .
Japanese Patent Laid-Open No. 11-162079 JP 2003-157607 A

  In any of the disk devices, it is necessary to hold the central part of the disk, which has been positioned by the positioning unit, in the rotation driving unit, and then rotate the disk at a position away from the positioning unit.

  For this purpose, a structure is employed in which the center of the rotation drive unit is shifted from the center of the disk positioned by the positioning unit in the direction of the surface of the disk. In this structure, the outer peripheral edge of the disk can be separated from the positioning part by guiding the center hole of the disk with the taper surface of the convex part of the rotation driving part and centering and holding the disk by the rotation driving part. However, with this means, the gap between the outer peripheral edge of the disk held by the rotation drive part and the positioning part becomes small, and if an external vibration or the like is given while the disk is rotating, the outer peripheral edge of the rotating disk May hit the positioning part.

  Also, if a disc with a diameter slightly larger than the standard is positioned by the positioning unit, the outer peripheral edge of the disc can be separated from the positioning unit even if the center hole of this disc is centered and held by the rotary drive unit. In this case, the outer peripheral edge of the disk can easily hit the positioning portion.

  It is also possible to provide a drive mechanism that moves the rotational drive unit in a direction away from the positioning unit after the disk positioned by the positioning unit is held by the rotational drive unit. This complicates the internal structure of the housing.

  The present invention solves the above-mentioned conventional problems, and without having a complicated drive mechanism in the housing, after the disk is held by the rotary drive unit, the outer peripheral edge of the disk can be sufficiently separated from the positioning unit. An object of the present invention is to provide a disc device that can be used.

According to a first aspect of the present invention, there is provided a rotation driving unit that rotates a disk, a support base that supports the rotation driving unit, an elastic support member that elastically supports the support base, and a movement of the support base. In a disc device provided with a regulation mechanism for regulating and a transfer mechanism for transferring the disc toward the rotation drive unit,
In the housing, a positioning part is provided for positioning the disk by hitting the peripheral part of the disk transferred by the transfer mechanism,
When the disc is transported toward the positioning portion by the transport mechanism, the support base is pushed in a direction closer to the positioning portion than the support position by the elastic support member by the restriction mechanism,
When the central portion of the disk is held by the rotation drive unit and the pressing force to the support base by the restriction mechanism is released, the side on which the support base is separated from the positioning unit by the elastic restoring force of the elastic support member It is characterized by being returned to.

  The disk device according to the first aspect of the present invention is a disk-selection-type disk device in which a plurality of disks are stored in a housing, and a disk selected in the housing is held by a rotation drive unit, and is inserted from an insertion slot. Each disk is positioned by the positioning unit and then held by the rotation driving unit. Alternatively, only one disk may be supplied into the housing, and the one disk may be positioned by the positioning unit and held by the rotation driving unit.

According to a second aspect of the present invention, in the housing, a rotation driving unit that rotationally drives a disk, a support base that supports the rotation driving unit, an elastic support member that elastically supports the support base, and a movement of the support base. A regulating mechanism for regulating, a plurality of supports for holding the disc, a selection mechanism for moving any one of the supports to a selected position, and the support at the selected position by moving the rotation drive unit on the support base In the disk device provided with a power transmission unit facing the disk supported by
Each support body is provided with a positioning portion for positioning the disk by hitting the peripheral edge of the disk,
When the center portion of the disk supported by the support body at the selected position is held by the rotation driving section facing the disk, the support base is more than the support position by the elastic support member by the restriction mechanism. Pushed in the direction approaching the positioning part,
When the central portion of the disk is held by the rotation driving portion and the pressing force to the support base by the restriction mechanism is released, the support base is separated from the positioning portion by the elastic restoring force of the elastic support member. It is returned to the side.

  In both the first invention and the second invention, the support base that is elastically supported is pushed in the direction approaching the positioning portion within the deformation range of the elastic support member, and the disk is held at that position. . When the pressing force to the support base is released, the disk is separated from the positioning portion by the restoring force of the elastic support member. Therefore, the disk can be rotated at a position sufficiently away from the positioning portion by simply pressing the support base toward the positioning portion without providing a special drive mechanism. Even when a disk having a larger diameter is positioned, the outer peripheral edge of the disk can be separated from the positioning section when held by the rotation drive section.

  For example, in the present invention, the restriction mechanism is provided with a first restriction member that presses the support base in a direction approaching the positioning portion.

  As described above, the disc can be rotationally driven at a position away from the positioning portion simply by providing the regulating mechanism with a regulating member that presses the support base in one direction.

  In the present invention, it is preferable that the restriction mechanism is provided with a second restriction member that sandwiches the support base from the opposite side with the first restriction member.

  By sandwiching the support base from both sides with the first restricting member and the second restricting member, the support base can be installed so as not to move at a position where the rotation drive unit is close to the positioning unit.

  Further, the present invention is configured such that the support base is pushed in a direction approaching the positioning portion by the restriction mechanism, and is also restricted in another direction intersecting with the direction approaching the positioning portion. it can.

  In the present invention, when the support base is pushed in a direction approaching the positioning member by the restriction mechanism, the support base is moved in a direction approaching the disk within an elastic support range by the elastic support member. Thus, a guide member is provided for moving the rotational drive unit to a position where the disk can be held.

  In this case, it is preferable that the restriction mechanism and the guide member are operated with the same power.

  In the disk apparatus of the present invention, the disk can be rotated at a position where the outer peripheral edge of the disk is separated from the positioning part after the disk is held by the rotation drive unit. Further, since the support base is moved within the deformation range of the elastic support member, a special drive mechanism for moving the rotation drive unit in the direction away from the positioning unit is not required.

  FIG. 1 is an exploded perspective view showing the overall structure of a disk device according to an embodiment of the present invention. FIG. 2 is a plan view showing the first power transmission unit located at the bottom of the housing. 3 to 5 are perspective views showing the first restricting mechanism according to the operation from the inside of the housing, and FIG. 6 is a transparent front view showing the first restricting mechanism from the front side of the housing. 7 to 9 are perspective views showing the second restricting mechanism according to the operation from the inside of the housing, and FIG. 10 is a transparent front view showing the second restricting mechanism from the back side of the housing. 11 to 13 are plan views showing the operation of the disk device.

(Overall structure)
A 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, the Z2 side is the upper side, the X1 side is the left side, the X2 side is the right side, the Y1 side is the front side or the near side, and the Y2 side is the rear side or the back side. The X1-X2 direction is the horizontal direction, and the Y1-Y2 direction is the front-rear 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 surface 10, and a ceiling surface 11 of the housing 2.

  A first power transmission unit 12 is provided on the upper surface of the bottom surface 6 of the lower housing 3. A unit support base 13 is supported on the first power transmission unit 12, and a drive unit 14 is mounted on the unit support base 13. A mechanism base 15 parallel to the bottom surface 6 is provided on the upper portion of the intermediate casing 4, and a second power transmission unit 16 is provided on the mechanism base 15. The mechanism base 15 is located above the drive unit 14. In the intermediate housing 4, a transfer unit 17 is provided below the mechanism base 15 and inside the front surface 7. A third power transmission unit 19 is provided between the end of the transfer unit 17 on the X1 side and the bottom surface 6 of the lower housing 3.

  In the upper housing 5, an area surrounded by the left side surface 9, the rear surface 10, and the ceiling surface 11 is a disk storage area 20, and each of the disk storage areas 20 includes a plurality of supports that can support the disk D. 21 is provided. In this embodiment, six support bodies 21 are provided, and the support bodies 21 are arranged so as to overlap in the thickness direction. The upper casing 5 is provided with a support body selection mechanism 22, and by the operation of the support body selection mechanism 22, one of the six support bodies 21 is selected and moved to the selected position, and is selected. The space | interval of the support body 21 and the support body 21 adjacent under it is expanded.

  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.

  An insertion port 23 is opened on the front surface 7 of the housing 2. The insertion slot 23 has a slit shape, and the width dimension in the vertical direction is slightly larger than the thickness dimension of the disk D, and the opening width dimension W in the horizontal direction is slightly wider than the diameter of the disk D.

  The transfer unit 17 is at the same height as the insertion slot 23, and the disk D inserted from the insertion slot 23 is transferred toward the disk storage area 20 by the transfer unit 17. The support 21 that has reached the selected position is at the same height as the insertion slot 23, and the disk D inserted from the insertion slot 23 is transferred by the transfer unit 17 and supplied to and supported by the support 21 at the selection position. .

  In FIG. 1, the drive unit 14 is in the retracted position, and the drive unit 14 at this time is located immediately inside the right side surface 8. The drive unit 14 is located slightly away from the outer periphery of the disk D supported by the support 21. In FIG. 1, the transfer unit 17 is in the standby position. At this time, the transfer unit 17 is located just inside the front surface 7 and slightly away from the outer peripheral edge of the disk D supported by the support 21. To position.

(First power transmission unit)
Next, the structure of the first power transmission unit 12 will be described.

  As shown in FIGS. 1 and 2, a front bent piece 3 a is bent vertically from the bottom surface 6 in front of the lower housing 3. Similarly, a rear bent piece 3 b is bent at the rear side, and a right bent piece 3 c is bent at the right side from the bottom surface 6.

  As shown in FIG. 2, the first power transmission unit 12 is provided with a slider 31, a rack member 32, a switching lever 38 provided on the slider 31, and a connecting rotation lever 44.

  A first motor M1 is fixed to the front side on the bottom surface 6, and a worm gear 33 is fixed to the output shaft of the first motor M1. The rotational power of the first motor M1 is transmitted to the pinion gear 37 via reduction gears 34, 35, 36A, 36B that are rotatably supported on the bottom surface 6. Since the pinion gear 37 meshes with the teeth of the rack member 32, the rack member 32 can move linearly in the Y1-Y2 direction by the power of the first motor M1.

  The slider 31 is slidable along a linear locus in the Y1-Y2 direction, and a switching lever 38 is provided on the slider 31. An upward shaft 39 is fixed to the end of the slider 31 on the Y2 side, and a shaft hole provided in the end of the switching lever 38 on the Y2 side is inserted into the shaft 39. The switching lever 38 is centered on the shaft 39. Is supported rotatably. Further, a coil spring is hung between the switching lever 38 and the slider 31, and the switching lever 38 is always urged counterclockwise on the slider 31 by the urging force of the coil spring.

  A guide switching member 42 is provided on the bottom surface 6. The guide switching member 42 is a metal plate having an arc-shaped portion in a planar shape, and arc-shaped sliding long holes 42a and 42a are formed at two locations. As shown also in FIG. 1, guide pins 43 and 43 protrude on the bottom surface 6, and each guide pin 43 is inserted into the sliding long hole 42a. The sliding long holes 42a and 42a slide on the guide pins 43 and 43, so that the guide switching member 42 is in the (b) direction, which is the back side (rear side) of the housing 2 along the arc locus, and the housing. It can slide in the direction (c) which is the front side (front side) of the body 2.

  A long connecting hole 42b extending in the width direction is formed in the guide switching member 42, and a downward connecting pin 45 provided in the connecting rotation lever 44 is inserted into the long connecting hole 42b. The guide switching member 42 is moved in the (b)-(c) direction by the rotational force of the connecting rotation lever 44.

  A switching slot 42c is formed at the end of the guide switching member 42 on the Y2 side. A transmission member 52 that is rotatably supported by a shaft 51 is provided on the back side of the bottom surface 6. A connecting pin 53 is fixed to the end of the transmission member 52 on the Y1 side, and the connecting pin 53 is inserted into the switching elongated hole 42c.

  As shown in FIG. 1, a guide member 54 constituting a second guide mechanism is provided inside the rear bent piece 3b. The guide member 54 has a plate shape, and a pair of sliding shafts 59, 59 extending in the Y2 direction are fixed to the guide member 54 as shown in FIG. As shown in FIGS. 7 to 9, a guide elongated hole 58 that extends linearly in the X1-X2 direction is formed in the rear bent piece 3b. A pair of sliding shafts 59, 59 is slidable in the guide slot 58, and the guide member 54 is supported so as to be linearly movable in the X1-X2 direction.

  As shown in FIG. 2, the guide member 54 is provided with a bent piece 54a bent from the lower edge thereof in a direction along the bottom surface 6, and a long hole 54b is formed in the bent piece 54a. A connecting pin 55 is fixed to the Y2 side end of the transmission member 52, and the connecting pin 55 is inserted into the elongated hole 54b.

  When the guide switching member 42 moves in the direction (c), the transmission member 52 is rotated counterclockwise by the switching slot 42c, and thereby the guide member 54 is moved in the X1 direction. Conversely, when the guide switching member 42 moves in the direction (b), the transmission member 52 is rotated in the clockwise direction, and the guide member 54 is moved in the X2 direction.

  As shown in FIGS. 1 and 9, a guide control hole 56 is opened in the guide member 54. The guide control hole 56 includes a restraining portion 56a formed at a position approaching the bottom surface 6 on the X1 side, a lifting portion 56b located above the restraining portion 56a, a restraining portion 56a, and a lifting portion 56b. And an inclined portion 56c to be continuous. Furthermore, a relatively large circular relief hole 56d is formed at the end of the lifting portion 56b on the X2 side.

  As shown in FIGS. 2, 7 to 9, and 10, a second restricting member 160 constituting a second restricting mechanism is provided on the Y1 side of the guide member 54. A support hole 161 is formed at the X1 side end of the second restricting member 160. A shaft 162 is fixed to the rear bent piece 3 b of the lower housing 3, a support hole 161 is inserted through the shaft 162, and the second restricting member 160 is rotatably supported with the shaft 162 as a fulcrum. .

  A restriction groove 167 extending in the Z1 direction is formed in the second restriction member 160, and a circular relief hole 164 having a diameter sufficiently larger than the opening width dimension of the restriction groove 167 is provided above the restriction groove 167. Is open. A pressing portion 165 that is bent toward the Y1 side is provided at the tip of the second restricting member 160 on the X2 side. On the upper part of the pressing part 165, a pressing inclined part 166 facing the Y1 side is formed. The pressing inclined portion 166 is inclined so as to gradually approach the rear bent piece 3b as it goes in the Z2 direction.

  As shown in FIG. 10, a rotation control hole 57 is formed on the X1 side of the guide member 54. The rotation control hole 57 is formed continuously from the X1 side to the X2 side with the restraining portion 57a, the lifting portion 57b, and the descending portion 57c. The lifting portion 57b is positioned above (Z2 side) the restraining portion 57a and the descending portion 57c, and the lifting portion 57b extends substantially parallel to the bottom surface 6.

  The second restricting member 160 is integrally formed with a sliding projection 163 that projects in the Y2 direction, and the sliding projection 163 is slidably inserted into the rotation control hole 57. When the guide member 54 is moved to the end in the X1 direction or the end in the X2 direction, the sliding convex portion 163 is positioned in the restraining portion 57a or the descending portion 57c of the rotation control hole 57, and the second restricting member 160 is rotated in the α1 direction. Further, when the sliding convex portion 163 is located in the lifting portion 57b of the rotation control hole 57 and the guide member 54 moves in the X1-X2 direction within the length range of the lifting portion 57b, the second The restriction member 160 maintains the posture rotated in the α2 direction.

  As shown in FIGS. 2 and 3 to 5, a guide member 61 constituting a first guide mechanism is provided inside the front bent piece 3 a of the lower housing 3.

  As shown in FIG. 6, a pair of sliding shafts 69 and 69 are fixed to the surface of the guide member 61 facing the Y1 side with an interval in the X1-X2 direction. As shown in FIG. 5 and the like, a guide long hole 68 extending in the X1-X2 direction is opened in the front bent piece 3a. The sliding shafts 69 and 69 are slidably inserted into the guide slot 68, and the guide member 61 is supported so as to be movable in the X1-X2 direction.

  As shown in FIG. 2, a bent piece 63 that is bent in the Y2 direction is formed at the end portion on the X1 side of the guide member 61, and a connecting long hole 64 is formed in the bent piece 63. A connecting convex portion 42d protruding upward is fixed to an end portion of the guide switching member 42 on the X1 side, the connecting convex portion 42d is inserted into the connecting long hole 64, and the guide member 61 is guided to the guide switching member 42. It is connected to.

  When the guide switching member 42 moves in the direction (b), the guide member 61 is positioned on the X2 side by the moving force, and when the guide switching member 42 moves in the (c) direction, the guide member 61 is moved to X1 by the moving force. Moved in the direction.

  A pair of guide control holes 62 are opened in the guide member 61 with an interval in the X1-X2 direction. FIG. 6 shows one guide control hole 62 provided on the X2 side. The structure of the guide control hole 62 provided on the X1 side is the same as that shown in FIG.

  As shown in FIG. 6, the guide control hole 62 includes a restraining portion 62a formed at a position approaching the bottom surface 6 on the X1 side, a lifting portion 62b located above the restraining portion 62a, and a restraining portion. 62a and an inclined portion 62c that makes the lifting portion 62b continuous. A relatively large circular escape hole 62d is continuously formed at the end of the lifting portion 62b on the X2 side.

  As shown in FIGS. 2, 3 to 5, and 6, a first regulating member 170 constituting a first regulating mechanism is provided on the Y2 side of the guide member 61.

  As shown in FIG. 6, a support hole 171 is formed at the X1 side end of the first restricting member 170. A shaft 172 protruding in the Y2 direction is fixed to the front bent piece 3a of the lower housing 3. As shown in FIG. 3, the shaft 172 passes through the clearance long hole 67 formed in the guide member 61 and extends in the Y2 direction, and the support hole 171 is rotatably inserted into the front portion of the shaft 172. Has been. As a result, the first restricting member 170 is rotatable about the shaft 172 as a fulcrum at a position where it is overlapped on the Y2 side of the guide member 61.

  As shown in FIGS. 3 and 6, a restriction groove 177 extending in the Z <b> 1 direction is formed in the upper part of the first restriction member 170. The restricting groove 177 opens in the Z2 direction, and the opening 174 has a tapered shape in which the width dimension gradually increases in the Z2 direction. As shown in FIGS. 3 and 5, a pressing portion 175 bent in the Y2 direction is formed at the end portion on the X2 side of the first restricting member 170. The pressing portion 175 is formed with a pressing inclined portion 176 directed in the Y2 direction. The pressing inclined portion 176 is gradually inclined toward the front bent piece 3a as it goes upward (Z2 direction).

  As shown in FIG. 6, a sliding protrusion 173 that protrudes in the Y1 direction is formed integrally with the lower portion of the first restricting member 170. The guide member 61 is formed with a rotation control hole 65 that opens below the escape elongated hole 67, and the sliding projection 173 is slidably inserted into the rotation control hole 65. The rotation control hole 65 has a restraining portion 65a formed at a position approaching the bottom surface 6 on the X1 side, a lifting portion 65b located above the restraining portion 65a, and on the X2 side from the lifting portion 65b. And a descending portion 65c.

  When the guide member 61 is moved to the end on the X1 side or the end on the X2 side, the sliding convex portion 173 is located in the restraining portion 65a or the descending portion 65c of the rotation control hole 65, and the first restricting member 170 is rotated in the β1 direction. Further, when the guide member 61 moves in the X1-X2 direction in a state where the sliding convex portion 173 is inserted into the lifting portion 65b of the rotation control hole 65, the first restricting member is moved by the lifting portion 65b. 170 is rotated in the β2 direction.

  In the present embodiment, the second restriction member 160 and the first restriction member 170 function as a restriction mechanism that restricts the movement of the unit support base 13 in the Y1-Y2 direction (front-rear direction).

(Unit support base)
The unit support base 13 shown in FIG. 1 is formed by bending a metal plate. As shown in FIGS. 1 and 3 to 5, the unit support base 13 is provided with a front bent piece 13 a, and the front bent piece 13 a is parallel to the inner side of the front bent piece 3 a of the lower housing 3. Installed. As shown in FIGS. 1 and 7 to 9, a rear bent piece 13 b is formed on the unit support base 13, and the rear bent piece 13 b is located inside the rear bent piece 3 b of the lower housing 3. Installed in parallel. Further, the side bent piece 13 c of the unit support base 13 is installed in parallel to the inside of the right bent piece 3 c of the lower housing 3.

  As shown in FIG. 1, the inner edge 13 d of the unit support base 13 has a concave arc shape and is located slightly away from the outer peripheral edge of the disk D supported by the support 21 in the disk storage area 20. The inner edge 13d of the unit support base 13 does not hit the outer peripheral edge of the disk D while each support 21 is moved up and down by the support selection mechanism 22.

  As shown in FIG. 1, dampers 71, 72, and 73 that are elastic support members are fixed to three locations on the bottom surface 6 of the lower housing 3. The dampers 71, 72, 73 are such that a liquid or gas such as oil is enclosed in a flexible bag body such as rubber. Alternatively, a compression coil spring is combined with the bag.

  Support shafts are vertically fixed downward at three locations on the bottom surface of the unit support base 13, and each support shaft is supported by dampers 71, 72, and 73. The unit support base 13 is elastically supported on the bottom surface 6 by dampers 71, 72 and 73. 7 to 9 show a damper 71 located on the Y2 side and a support shaft 74 fixed to the end of the unit support base 13 on the Y2 side and supported by the damper 71.

  As shown in FIG. 1, a single restraining shaft 77 protruding in the Y2 direction is fixed to the rear bent piece 13b of the unit support base 13, and the front bent piece 13a of the unit support base 13 has a Y1 A pair of constraining shafts 78, 78 projecting in the direction are fixed at an interval in the X1-X2 direction.

  As shown in FIGS. 3 to 5 and 6, the pair of restraining shafts 78 and 78 are respectively inserted into guide control holes 62 formed in the guide member 61. Further, as shown in FIG. 3 are inserted into clearance holes 3f, 3f formed in the front bent piece 3a. The escape holes 3f, 3f have an opening diameter sufficiently larger than the diameter of the restraint shafts 78, 78. As shown in FIGS. 3 and 4, the restraint shaft 78 located on the X2 side is provided at a position where it can be fitted into a restriction groove 177 formed in the first restriction member 170.

  As shown in FIGS. 7 to 9 and 10, the restraint shaft 77 passes through the restriction groove 167 or the relief hole 164 formed in the second restriction member 160 and is guided control formed in the guide member 54. It is inserted into the hole 56. Further, it is inserted into a relief hole (not shown) formed in the rear bent piece 3 b of the lower housing 3.

  As shown in FIGS. 3 and 4, a part of the front bent piece 13 a of the unit support base 13 is a first pressed portion 13 e, and a pressing inclined portion 176 formed on the second restricting member 170. Thus, the first pressed portion 13e can be pressed in the Y2 direction. As shown in FIGS. 7 and 8, a part of the rear bent piece 13b of the unit support base 13 serves as a second pressed portion 13f, and a pressing inclined portion 166 provided on the second restricting member 160. Can contact the second pressed portion 13f.

  As shown in FIG. 2, the protrusion width dimension W1 in the Y2 direction of the pressing portion 175 provided in the first restricting member 170 is the protrusion in the Y1 direction of the pressing portion 165 provided in the second restricting member 160. It is larger than the width dimension W2.

  As shown in FIGS. 5 and 9, the first pressed portion 13 e is not pressed by the pressing inclined portion 176 of the first restricting member 170, and the first inclined portion 166 of the second restricting member 160 is the first. When the second pressed portion 13f is not pressed, the unit support base 13 is supported at the neutral position by the elastic force of each of the three dampers 71, 72, 73.

  On the other hand, as shown in FIGS. 3, 4, 7, and 8, the first pressed portion 13 e is pressed by the pressing inclined portion 176 of the first restricting member 170 and the second restricting member 160 is pressed. When the inclined portion 166 is in contact with the second pressed portion 13f, the pressing force in the Y2 direction acts on the unit support base 13 due to the difference in the protruding width dimensions W1 and W2 of the pressing portion 175 and the pressing portion 165. To do. At this time, as shown in FIGS. 7 and 8, the unit support base 13 is tilted in the Y2 direction so that the unit support base 13 moves in the Y2 direction from the neutral position. 13 is held between the pressing part 175 and the pressing part 165 so as not to move.

(Drive unit)
As shown in FIG. 1, a drive unit 14 is installed on the unit support base 13. The drive unit 14 has an elongated drive base 81. A support shaft 84 projects vertically upward on the Y2 side of the unit support base 13, and a drive base 81 is supported by the support shaft 84 so as to be rotatable along the XY plane.

  The rotation range of the drive unit 14 is from the retracted position shown in FIG. 1 to the intervention position shown in FIGS. 11 and 12 and the drive position shown in FIG. A rotation drive unit 82 is mounted on the drive base 81. When the drive unit 14 is in the retracted position shown in FIG. 1, the rotation drive unit 82 is located on the front surface 7 side of the housing 2, and the side surface of the drive base 81 is immediately adjacent to the right surface 8 of the housing 2. It is located in parallel. The drive unit 14 in the retracted position is located slightly away from the outer peripheral edge of the disk D supported by the support 21 in the disk storage area 20.

  When the drive unit 14 rotates to the intervention position shown in FIGS. 11 and 12, the rotation drive unit 82 moves to the inside of the disk storage area 20.

  As shown in FIG. 1, the rotation drive unit 82 has a table portion 82b on which the lower surface of the disk D is installed, and a convex portion 82c that protrudes upward at the center of the table portion 82b. A spindle motor is fixed to the drive base 81. The table portion 82b and the convex portion 82c are integrally formed of a synthetic resin material, and are fixed to the rotating shaft 82a of the spindle motor.

  A taper surface 82d whose diameter gradually increases toward the bottom is formed on the peripheral surface of the convex portion 82c. The diameter of the lower end portion of the convex portion 82c is set to be substantially the same as the inner diameter of the center hole Da of the disk D or slightly smaller than the inner diameter of the center hole Da.

  A self-clamping mechanism for holding the center hole Da of the disk D on the table portion 82b is provided inside the convex portion 82c. The self-clamping mechanism has a plurality of holding claws protruding from the periphery of the convex portion 82c. When the protrusion 82c enters the center hole Da of the disk D, the holding claw protrudes around the protrusion 82c, and the disk D is pressed against and held by the table 82b by the plurality of holding claws.

(Transfer unit and second power transmission unit)
As shown in FIG. 1, a transfer unit 17 is provided under the mechanism base 15 provided in the intermediate housing 4. As shown in FIGS. 11 to 13, the transfer unit 17 is provided with a roller shaft 111, and a first shaft formed on the outer periphery of the roller shaft 111 with a material having a high friction coefficient such as synthetic rubber or natural rubber. A transfer roller 112 and a second transfer roller 113 are provided. The first transfer roller 112 and the second transfer roller 113 are arranged with an interval in the axial direction.

  In the transfer unit 17, a holding portion made of a synthetic resin having a low coefficient of friction is provided so that the first transfer roller 112 and the second transfer roller 113 face each other. At least one of the transfer rollers 112 and 113 and the sandwiching portion is biased by a spring so that the disk D can be sandwiched between the transfer rollers 112 and 113 and the sandwiching portion.

  As shown in FIG. 1, a fulcrum shaft 131 extends vertically on the bottom surface 6 of the lower housing 3, and an end portion on the X1 side of the transfer unit 17 is rotatably supported on the support shaft 131.

  In the second power transmission unit 16, an arc-shaped switching member 91 is provided on the mechanism base 15. The switching member 91 is formed with a pair of guide elongated holes 91a and 91a extending along an arc locus. On the mechanism base 15, a pair of guide shafts 92, 92 are projected and fixed upward, and the respective guide shafts 92 are inserted into the guide long holes 91a. By this support mechanism, the switching member 91 is slidably guided in the (d) direction and the (e) direction along the arc locus. Rack teeth (not shown) are formed on the outer peripheral edge of the switching member 91 along an arc locus, and a pinion gear 97 that meshes with the rack teeth is provided on the mechanism base 15. When the pinion gear 97 is driven by a second motor (not shown) provided on the mechanism base 15, the switching member 91 is moved in the (d)-(e) direction.

  A drive arm 95 is provided on the mechanism base 15. The drive arm 95 is rotatably supported with a shaft 96 provided on the mechanism base 15 as a fulcrum. The drive arm 95 is rotated by the moving force of the switching member 91. As shown in FIGS. 11 to 13, a drive shaft 97 extending in the Z2 direction is fixed to the end portion on the X2 side of the transfer unit 17, and the drive shaft 97 is formed on the mechanism base 15 as shown in FIG. It passes through the arc-shaped elongated hole and protrudes upward from the mechanism base 15. The drive shaft 97 is slidably inserted into an elongated hole formed in the drive arm 95.

  When the switching member 91 on the mechanism base 15 is moved in the (d) direction, the drive arm 95 is rotated in the clockwise direction, and the transfer unit 17 is in the standby position shown in FIGS. When the switching member 91 moves in the direction (e), the drive arm 95 is rotated counterclockwise, and the transfer unit 17 is rotated counterclockwise with the support shaft 131 as a fulcrum. It reaches the operating position.

  As shown in FIG. 1, in the third power transmission unit 19 provided on the bottom surface 6 of the lower housing 3, an integrated gear 141 is rotatably supported below the fulcrum shaft 131. The upper part of the integrated gear 141 is a vertical worm gear 141a, and the lower part is a lower gear 141b. An intermediate gear 142 is rotatably provided on the bottom surface 6 of the housing 2 and meshes with the lower gear 141b. A third motor (not shown) is provided on the bottom surface 6, and the rotational force is transmitted to the intermediate gear 142.

  The rotational force of the intermediate gear 142 is transmitted to the integral gear 141. The transfer unit 17 is provided with a gear mechanism that is rotated by the vertical worm gear 141a of the integral gear 141, and the roller shaft 111 is freely rotated in both forward and reverse directions by this gear mechanism.

(Disk storage area and support selection mechanism)
As shown in FIG. 1, three selection shafts 151 </ b> A, 151 </ b> B, 151 </ b> C that are parallel to each other and extend downward are rotatably supported on the ceiling surface 11 of the upper housing 5. A selection groove 152 that is a spiral groove is formed on the outer periphery of each selection shaft 151A, 151B, 151C. Above the selection shafts 151A, 151B, and 151C, there is a dense pitch portion where the helical pitch is narrow in the axial direction, and the selection groove 152 is formed at least 5 rounds (5 pitches) or more in this dense pitch portion. A dense pitch portion is similarly provided below the selection shafts 151A, 151B, and 151C, and the selection grooves 152 are formed at 5 pitches or more in this dense pitch portion. An intermediate portion of the selection shafts 151A, 151B, and 151C is a sparse pitch portion provided between the upper dense pitch portion and the lower dense pitch portion. In this sparse pitch portion, the selection grooves 152 are formed by one pitch between both dense pitch portions.

  As shown in FIG. 1, six support bodies 21 are provided in the disk storage area 20 so as to overlap in the vertical direction. One disk D is held on the lower surface of each support 21. Each support body 21 is supported so as to be movable in the axial direction of the selection shafts 151A, 151B, 151C, and is moved in the Z1-Z2 direction according to the spiral locus of the selection groove 152.

  As shown in FIGS. 11 to 13, three bearings 25 </ b> A, 25 </ b> B, 25 </ b> C and three holding members 26, 27, 28 are provided on the lower surface of each support body 21. In FIG. 11 to FIG. 13, for convenience of illustration, the holding members 26, 27, and 28 positioned below the support 21 are illustrated by solid lines.

  Each support body 21 is formed of a relatively thin metal plate, and synthetic resin bearings 25A, 25B, and 25C are fixed to three portions of the support body 21 made of a metal plate. The bearing 25A is slidably inserted into the selection shaft 151A, and a sliding convex portion formed on the bearing 25A is slidably engaged with a selection groove 152 formed on the outer peripheral portion of the selection shaft 151A. Has been. The bearing 25B is slidably inserted into the selection shaft 151B and is slidably engaged with a selection groove 152 formed in the selection shaft 151B. Similarly, the bearing 25C is slidably inserted into the selection shaft 151C and is slidably engaged with a selection groove 152 formed in the selection shaft 151C.

  As shown in FIGS. 11 to 13, the holding member 26 is supported so that the outer periphery of the bearing 25A can be rotated. The holding member 27 is supported so that the outer periphery of the bearing 25B can be rotated, and the holding member 28 is supported so that the outer periphery of the bearing 25C can be rotated.

  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 21 is provided with a stopper (not shown), and the holding member 26 is regulated so as not to rotate any more at an angle rotated slightly counterclockwise from the posture shown in FIG. The holding member 27 is urged clockwise (γ4 direction) by the tension coil spring 29b, and is not rotated clockwise from the posture shown in FIG. 11 by a stopper (not shown) provided on the support 21. So that it is regulated. Similarly, the holding member 28 is urged clockwise (γ4 direction) by the tension coil spring 29c, and the stopper (not shown) provided on the support body 21 rotates clockwise from the posture shown in FIG. It is regulated not to turn to

  As shown in FIGS. 11 to 13, the holding member 27 is integrally formed with an arm portion 27a extending in the Y1 direction, and a holding claw 27b is formed at the tip of the arm portion 27a. The holding claw 27b is opposed to the lower surface of the support body 21 with a gap. The interval is the same as or slightly larger than the thickness dimension of the disk D.

  The base portion of the holding member 27 has a thin cylindrical shape, and the outer peripheral surface thereof is a positioning portion 27c. The dimension of the positioning portion 27c in the disc thickness direction, and the lower surface of the support 21 and the holding claw so that the peripheral edge of the disk D supplied between the lower surface of the support 21 and the holding claw 27b always contacts the positioning portion 27c. The interval with 27b is determined.

  The holding member 28 has a holding claw 28 b at the tip of the arm portion 28 a, and the distance between the lower surface of the support 21 and the holding claw 28 b is the same as the facing distance between the holding claw 27 b and the lower surface of the support 21. Is set to A positioning portion 28 c is formed at the base of the holding member 28. The holding member 26 has a holding claw 26b formed at the tip of the arm portion 26a, and the distance between the lower surface of the support 21 and the holding claw 26b is set to be the same as the facing distance between the holding claw 27b and the lower surface of the support 21. ing. A positioning portion 26 c is formed at the base of the holding member 26.

  The holding member 27 is formed with a driving recess 27g facing in the Y2 direction, and the holding member 28 is formed with a driving recess 28g facing in the Y2 direction. The holding member 26 is formed with a driving recess 26g facing the X1 direction. As shown in FIG. 11, when the disk D is not supplied to the lower surface of the support 21 and when the disk D is held on the lower surface of the support 21 as shown in FIG. The member 28 is urged in the γ4 direction by the elastic force of the tension coil springs 29b and 29c, and the holding member 26 is also urged in the γ2 direction by the tension coil spring 29a. Therefore, the disk D can be held between the holding claw 27 b and the support 21, between the holding claw 28 b and the support 21, and between the holding claw 26 b and the support 21.

  As shown in FIGS. 11 and 12, when the support 21 reaches the selected position, a drive recess 27 g formed in the holding member 27 and a drive recess 28 g formed in the holding member 28 are provided in the housing 2. It faces the holding release member 121. In addition, the drive recess 26 g formed in the holding member 26 faces the holding release member 122. At this time, when the holding release member 121 is driven in the X1 direction, the driving release portions 27g and 28g are pushed in the X1 direction by the holding release member 121, and the holding member 27 and the holding member 28 are rotated in the γ3 direction. The holding claws 26b and 28b are detached from the disk D. When the holding release member 122 is driven in the Y2 direction, the driving recess 16g is pushed in the Y2 direction by the holding releasing member 122, the holding member 26 is rotated in the γ1 direction, and the holding claw 26b is moved to the disk D. Deviate from.

  As a result, as shown in FIG. 13, the disk D can be removed from the support 21 at the selected position.

(Operation)
Next, the overall operation of the disk device 1 will be described.

  FIG. 11 is a plan view showing an operation in which the disk D inserted into the insertion slot 23 is transferred into the housing 2 by the transfer unit 17, and FIG. 12 shows the center of the disk D after the transferred disk D is positioned. FIG. 13 is a plan view showing a driving operation in which the disk Da is driven to rotate with the unit support base 13 in an elastic support state.

(Initial mode setting)
When the disk device 1 is set to the initial mode, an operation of selecting any one of the supports 21 in the disk storage area 20 can be performed.

  In the initial mode, the rack member 32 is moved to the Y2 side by the first motor M1 provided in the first power transmission unit 12 shown in FIGS. It has moved to the beginning of the side. The drive unit 14 on the unit support base 13 is rotated counterclockwise about the support shaft 84 by the moving force of the switching lever 38 in the Y2 direction. The retracted position is set in parallel with the inside of the surface 8. At this time, the self-clamp mechanism provided in the rotation driving unit 82 is in a clamp release state in which the holding claw has retracted into the convex portion 82c.

  In the initial mode, the connection rotation lever 44 is rotated clockwise by the moving force of the slider 31 shown in FIG. 2 in the Y2 direction, and the guide switching member 42 is moved in the (b) direction by the connection rotation lever 44. It has been moved to and stopped. At this time, the guide switching member 42 rotates the transmission member 52 shown in FIG. 2 in the clockwise direction, and the guide member 54 provided on the Y2 side of the housing 2 is moved in the X2 direction. At the same time, the guide member 61 is also moved in the X2 direction by the end of the guide switching member 42 on the Y1 side.

  At this time, as shown in FIG. 7, the restraint shaft 77 provided behind the unit support base 13 is held in the restraint portion 56a of the guide control hole 56 formed in the guide member 54 moving in the X2 direction. Has been. On the other hand, as shown in FIG. 3, the restraint shafts 78, 78 provided in front of the unit support base 13 are also restraint portions 62a of the guide control holes 62, 62 formed in the guide member 61 moving in the X2 direction. , 62a. Since the restricting portion 56a and the restricting portions 62a and 62a are located on the side close to the bottom surface 6 of the housing 2, the unit support base 13 is pushed down at a position approaching the bottom surface 6, and the dampers 71, 72, and 73 are The unit support base 13 is deformed so as to be crushed toward the bottom surface 6.

  As shown in FIG. 7, when the guide member 54 is moved in the X2 direction, the sliding convex portion 163 of the second restricting member 160 becomes the restraining portion of the rotation control hole 57 of the guide member 54 shown in FIG. Since it is held in 57a, the second restricting member 160 is in the initial position rotated in the α1 direction.

  That is, in the initial mode, the restricting shaft 77 is lowered in the Z1 direction by the restricting portion 56a of the guide control hole 56, and the second restricting member 160 is also rotated in the α1 direction. Therefore, the restraint shaft 77 is pushed down by the restraint portion 56a of the guide control hole 56, and enters the restriction groove 167 formed in the second restriction member 160 to restrict movement in the X1-X2 direction. ing.

  Further, in the initial mode of FIG. 7, the unit support base 13 is lowered and the second restricting member 160 is rotated in the α1 direction, so that the pressure formed on the second restricting member 160 is The inclined portion 166 is in contact with the second pressed portion 13f facing the Y2 side of the unit support base 13.

  Similarly, as shown in FIG. 3, when the guide member 61 is moved in the X2 direction, the sliding convex portion 173 of the first restricting member 170 is rotated on the guide member 61 shown in FIG. Since it is held in the restraining portion 65a of the movement control hole 65, the first restricting member 170 is rotated in the β1 direction.

  Since the first restricting member 170 is rotated in the β1 direction as the unit support base 13 is lowered, the restricting shaft 78 is pushed down by the restricting portion 62a of the guide control hole 62, and the first restricting member 170 is pushed. The restriction shaft 78 is restricted by the restriction groove 177 formed in the member 170 so as not to move in the X1-X2 direction. Further, the pressing inclined portion 176 formed on the first restricting member 170 is in pressure contact with the first pressed portion 13 e of the unit support base 13.

  A pressing force F in the Y2 direction acts from the pressing inclined portion 176 to the unit support base 13, and the unit supporting base 13 is sandwiched between the pressing inclined portion 176 shown in FIG. 3 and the pressing inclined portion 166 shown in FIG. In the state, it is moved in the Y2 direction from the elastic neutral position.

  That is, when the unit support base 13 is not sandwiched between the pressing inclined portion 166 and the pressing inclined portion 176, the unit supporting base 13 is in a neutral position elastically supported by the dampers 71, 72, 73. In the initial mode shown in FIG. 7, the unit support base 13 is held in a state of being moved in the Y2 direction from the neutral position. As a result, as shown in FIG. 7, the support shaft 74 fixed to the unit support base 13 is inclined in the Y2 direction.

(Support selection operation)
When the initial mode is set, when an instruction to select one of the operation unit provided in front of the front surface 7 of the housing 2 or the six support members 21 provided by the remote controller is input, the support member selection operation Migrate to

  As shown in FIG. 1, the support selecting operation is performed in a state where the drive unit 14 is in the retracted position and the transfer unit 17 is in the standby position. When the operation of selecting the support 21 is performed, the power of the motor is applied to the three selection shafts 151A, 151B, and 151C through a power transmission path (not shown), and the three selection shafts 151A, 151B, and 151C are synchronized. Rotate.

  When the selection shafts 151A, 151B, 151C are rotated counterclockwise, the support body 21 is sent downward by the selection groove 152 one by one. When the selection shafts 151A, 151B, 151C are rotated clockwise, the support body 21 is One sheet is sent upward. When the support body 21 to be selected reaches a selection position that is substantially in the middle of the sparse pitch portion of the selection groove 152, the motor stops and the rotation of each of the selection shafts 151A, 151B, and 151C stops. At this time, the sparse pitch portion of the selection groove 152 provides a large gap between the support body 21 stopped at the selection position and the support body 21 adjacent below the support body 21.

(Rotation operation of the drive unit 14 to the intervention position)
When the selected support 21 moves to the selected position and stops, the first motor M1 provided in the first power transmission unit 12 shown in FIGS. 1 and 2 starts, and the rack member is driven by the pinion gear 37. 32 is moved in the Y1 direction, and accordingly, the slider 31 and the switching lever 38 are moved in the Y1 direction. The drive unit 14 on the unit support base 13 is rotated clockwise by the moving force of the switching lever 38 in the Y1 direction, and is rotated to the intervention position shown in FIG. 11 and stopped.

  As described above, since the unit support base 13 is pushed down by the guide member 61 shown in FIG. 3 and the guide member 54 shown in FIG. 7, when the drive unit 14 rotates to the intervention position, The provided rotation drive unit 82 is located below the support 21 in the selected position.

(Disc loading operation)
As shown in FIG. 11, when the drive unit 14 is set to the intervention position and the detection member (not shown) detects that the disc D is inserted from the insertion slot 23, the roller driving motor is The motor is started and the power of the motor is transmitted to the intermediate gear 142 shown in FIG. The power is transmitted to the integral gear 141, and the transfer rollers 112 and 113 in the transfer unit 17 are rotated in the carry-in direction.

  The disk D is held between the transfer rollers 112 and 113 in the transfer unit 17 and the holding unit, and transferred toward the inside of the housing 2 by the rotational force of the transfer rollers 112 and 113. When the detection means (not shown) detects that the disk D has been carried into the housing 2 by a predetermined distance (for example, approximately half of the radius of the disk D), the second power transmission unit 16 shown in FIG. The second motor is started, the switching member 91 is moved in the direction (e) by the pinion gear 97, the drive arm 95 is rotated counterclockwise, and the transfer unit 17 is rotated about the fulcrum shaft 131. It rotates clockwise and reaches the transfer operation position shown in FIG.

  During this time, the disk D is carried into the housing 2 by both the rotational force in the carry-in direction of the transfer rollers 112 and 113 and the rotation operation of the transfer unit 17.

(Disk positioning operation)
As shown in FIG. 12, the disk D transferred by the transfer unit 17 is supplied to the lower surface of the support 21 in the selected position. The disk D enters between the holding claw 28 b of the holding member 28 and the lower surface of the support 21, and the outer peripheral edge of the disk D hits the positioning portion 28 c at the base of the holding member 28. Further, the disk D enters between the holding claw 27 b of the holding member 27 and the lower surface of the support 21, and the outer peripheral edge of the disk D hits the positioning portion 27 c at the base of the holding member 27. Further, the disk D enters between the holding claw 26 b of the holding member 26 and the lower surface of the support 21, and the outer peripheral edge of the disk D hits the positioning portion 26 c at the base of the holding member 26.

  As described above, the disk D transferred by the transfer unit 17 is positioned by the outer periphery of the disk D hitting the three positioning portions 26c, 27c, and 28c. At this time, as shown in FIG. 3, the unit support base 13 is pressed in the Y2 direction by the pressing inclined portion 176 of the first restricting member 170, and the unit support base 13 is supported by the dampers 71, 72, and 73. It moves to the Y2 side from the neutral position. Therefore, when the disk D positioned on the support 21 has a size that meets the standard, the center of the rotation drive unit 82 faces almost directly below the center D0 of the disk D.

(Disc clamp operation)
As shown in FIG. 12, when the disk D held by the transfer unit 17 is positioned on the lower surface of the support 21 at the selected position, the disk clamping operation is performed.

  In the disc clamping operation, the rack member 32 is further moved in the Y1 direction by the first motor M1 of the first power transmission unit 12 shown in FIGS. 1 and 2, and the connecting rotation lever 44 is rotated counterclockwise. Be moved. The guide switching member 42 is moved in the direction (c) by the turning force of the connecting rotation lever 44.

  When the guide switching member 42 moves in the direction (c), on the Y2 side of the housing 2, the transmission member 52 is rotated counterclockwise, and the guide member 54 is moved in the X1 direction. On the Y1 side, the guide member 61 is moved in the X1 direction.

  At this time, as shown in FIG. 8, the guide member 54 moves by approximately half of the total movement stroke in the X1 direction and stops. Therefore, as shown in FIG. 10, the constraining shaft 77 provided in the unit support base 13 is guided to the lifting portion 56 b of the guide control hole 56 formed in the guide member 54. Further, as shown in FIG. 4, the guide member 61 is also moved and stopped by almost half of the entire movement stroke in the X1 direction, and the constraint shafts 78 and 78 are formed on the guide member 61 as shown in FIG. 6. Guided to the lifting portions 62b and 62b of the guide control holes 62 and 62.

  As shown in FIG. 10, the lifting portion 56 b of the guide member 54 is located away from the bottom surface 6 of the housing 2, and as shown in FIG. 6, the lifting portion 62 b of the guide member 61 is located away from the bottom surface 6. . Therefore, the unit support base 13 is lifted away from the bottom surface 6, and the drive unit 14 supported by the unit support base 13 is also lifted.

  When the guide member 61 moves halfway in the X1 direction, the sliding protrusion 173 of the first restricting member 170 is guided to the lifting portion 65b of the rotation control hole 65 as shown in FIG. The member 170 rotates from the initial position in the β2 direction with the shaft 172 as the rotation center. In the state of FIG. 4, the unit support base 13 is lifted and the first restricting member 170 rotates in the β2 direction, so that the restraining shaft 78 fixed to the unit support base 13 is fixed to the first restricting member 170. It is held in the restriction groove 177, and the state where the first pressed portion 13e is pressed in the Y2 direction by the pressing inclined portion 176 of the first restriction member 170 is continued.

  Further, when the guide member 54 moves halfway in the X1 direction, as shown in FIG. 10, the sliding convex portion 163 of the second restricting member 160 is lifted by the rotation control hole 57 formed in the guide member 54. The second restricting member 160 is guided to 57b and rotated in the α2 direction around the shaft 162 as the rotation center from the initial position. In the state of FIG. 8, since the second support member 160 rotates in the α2 direction at the same time that the unit support base 13 is lifted, the restraint shaft 77 provided on the unit support base 13 is moved to the second control member 160. The pressing inclined portion 166 provided on the second restricting member 160 remains in contact with the second pressed portion 13 f of the unit support base 13.

  Thus, in the clamping operation, as shown in FIGS. 3 to 4 and as shown in FIGS. 7 to 8, the unit support base 13 is connected to the restriction groove 177 and the second restriction member 177 of the first restriction member 170. The member 160 is lifted in a state of being restricted in the X1-X2 direction by the restriction groove 167 of the member 160. Moreover, it is lifted while being held between the pressing inclined portion 176 of the first restricting member 170 and the pressing inclined portion 166 of the second restricting member 160 and pressed in the Y2 direction.

  The unit support base 13 is restricted in the X, Y, and Z directions by the guide member 61 and the first restriction member 170, and by the guide member 54 and the second restriction member 160, and the unit support base. Since the unit support base 13 is lifted while 13 is moved in the Y2 direction from the support neutral position by the dampers 71, 72, 73, the drive supported by the unit support base 13 as shown in FIG. The rotational drive unit 82 of the unit 14 moves up in a state where the center thereof substantially coincides with the center D0 of the disk D positioned on the support 21. Therefore, the convex portion 82 c of the rotation driving unit 82 surely enters the center hole Da of the disk D.

  When the convex portion 82c enters the center hole Da, the self-clamping mechanism operates, the holding claws project from the convex portion 82c to the periphery, and the disk D is pressed against the table portion 82b by the holding claws, and the disk D is pressed against the rotation driving portion 82. Is clamped.

(Unit support base deregulation operation and disk drive operation)
When the disc clamping operation is completed, the second motor of the second power transmission unit 16 shown in FIG. 1 is started, the switching member 91 is moved in the (d) direction, and the drive arm 95 is rotated in the clockwise direction. Then, the transfer unit 17 is returned from the transfer operation position shown in FIG. 12 to the standby position shown in FIG. At this time, the transfer unit 17 rotates in the clockwise direction while the transfer rollers 112 and 113 in the transfer unit 17 rotate in the disk loading direction. Thereby, as shown in FIG. 13, the transfer unit 17 can be returned to the standby position while the disk D is held by the rotation drive unit 82.

  Further, the holding release member 121 shown in FIG. 12 moves in the X1 direction, the holding release member 121 rotates the holding member 27 and the holding member 28 in the γ3 direction, and the holding claw 27b and the holding claw 28b are moved to the disk D. It is retracted outside the outer peripheral edge. At the same time, the holding release member 122 moves in the Y2 direction, the holding member 26 is rotated in the γ1 direction, and the holding claw 26b is retracted outward from the outer peripheral edge of the disk D.

  Next, the first motor M1 of the first power transmission unit 12 shown in FIGS. 1 and 2 is started again, and the rack member 32 is further moved to the end of the movable range in the Y1 direction. At this time, the connecting rotation lever 44 is rotated counterclockwise, and the guide switching member 42 moves to the end of the movable range in the (c) direction.

  When the guide switching member 42 moves in the direction (c), the transmission member 52 located on the Y2 side in the housing 2 rotates counterclockwise, and the guide member 54 is movable in the X1 direction as shown in FIG. Move to the end of the range. At this time, the restraint shaft 77 fixed to the unit support base 13 moves into the relief hole 56 d of the guide control hole 56 of the guide member 54. When the guide member 54 moves in the X1 direction, the sliding convex portion 163 of the second restricting member 160 is guided to the descending portion 57c of the rotation control hole 57 formed in the guide member 54. Therefore, the second restricting member 160 rotates in the α1 direction, the restricting groove 167 of the second restricting member 160 is disengaged from the restricting shaft 77, and the restricting shaft 77 is a relief hole 164 formed in the second restricting member 160. Located within.

  Furthermore, when the second restricting member 160 rotates in the α1 direction, the pressing inclined portion 166 moves away from the second pressed portion 13f of the unit support base 13 and moves downward. Therefore, in the state of FIG. 9, all the restraints on the end portion on the Y2 side of the unit support base 13 and the restraint shaft 77 are released.

  When the guide switching member 42 shown in FIG. 2 moves to the end in the direction (c), as shown in FIG. 5, the guide member 61 provided on the Y1 side is moved to the end of the movable range in the X1 direction. At this time, the restraining shafts 78, 78 provided on the Y <b> 1 side of the unit support base 13 are positioned in the relief holes 62 d of the guide control holes 62 of the guide member 61.

  In the state shown in FIG. 5, the sliding convex portion 173 of the first restricting member 170 is guided to the descending portion 65c of the rotation control hole 65 of the guide member 61, so that the first restricting member 170 rotates in the β1 direction. The restriction groove 177 provided in the first restriction member 170 is moved away from the restriction groove 78 and moved downward. At the same time, the pressing inclined portion 176 provided on the first restricting member 170 moves downwardly away from the first pressed portion 13 e of the unit support base 13.

  Therefore, in the state of FIG. 5, all the restraints on the end portion on the Y1 side of the unit support base 13 and the restraining grooves 78, 78 are released.

  When the restraint on the unit support base 13 is released, the unit support base 13 is elastically supported by the dampers 71, 72, 73. As shown in FIG. 5, since the pressing force in the Y2 direction by the pressing inclined portion 176 provided on the first regulating member 170 is released, the unit support base 13 is neutrally supported by the dampers 71, 72, and 73. Return to.

  When the unit support base 13 returns to the support neutral position, the unit support base 13 and the drive unit 14 move in the Y1 direction. Therefore, as shown in FIG. 13, the outer peripheral edge of the disk D clamped to the rotation drive unit 82 is separated from the positioning part 27 c at the base of the holding member 27 by a distance h1 and is separated from the positioning part 28 c at the base of the holding member 28. Separated by h2. Further, the unit support base 13 and the drive unit 14 are moved below the clamping operation position.

  Therefore, the disk D can be rotationally driven at a position where it does not hit the holding members 27, 28, or a position where it does not hit the lower surface of the support 21 at the selected position. Further, when the disk D is rotationally driven, even if the unit support base 13 that is elastically supported vibrates due to external vibration, the distance between the disk D and the holding members 27 and 28 can always be secured. .

(Driving of the disk in the disk storage area 20)
When one of the disks stored in the disk storage area 20 is selected and driven, as shown in FIG. 1, the drive unit 14 is in the retracted position and the transfer unit 17 is in the standby position. The body selection mechanism 22 operates, and the support body 21 holding the selected disk D moves to the selected position.

  At this time, the unit support base 13 is lowered as shown in FIGS. 3 and 7, and is further restrained while being pushed in the Y2 direction from the neutral support position. In this state, the drive unit 14 rotates clockwise and reaches the intervention position. After that, as shown in FIGS. 4 and 8, the unit support base 13 is lifted while maintaining the restrained state, and the convex portion 82c of the rotation driving portion 82 enters the center hole Da of the disk D at the selected position, The disk D is held.

  Thereafter, as shown in FIGS. 6 and 9, the restraint on the unit support base 13 is released, and the disk D is rotationally driven in the state shown in FIG.

1 is an exploded perspective view showing the overall structure of a disk device according to an embodiment of the present invention; The top view which shows the 1st power transmission part located in the bottom part of a housing | casing, The partial perspective view which shows the state in which the unit support base descend | falls and is controlled by the 1st control member, The partial perspective view which shows the state which the unit support base raises and is controlled by the 1st control member, The fragmentary perspective view which shows the state by which the control of the 1st control member to the unit support base was cancelled | released, A front view of the guide member and the first regulating member seen through from the outside, The partial perspective view which shows the state in which the unit support base descend | falls and is controlled by the 2nd control member, The partial perspective view which shows the state which the unit support base raises and is controlled by the 2nd control member, The fragmentary perspective view which shows the state by which the control of the 2nd control member to the unit support base was cancelled | released, A front view of the guide member and the second restricting member seen through from the outside, A plan view of a disk device showing a disk loading operation; A plan view of the disk device showing the disk clamping operation, A plan view of a disk device showing a disk driving operation,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc apparatus 2 Housing | casing 13 Unit support base 13e 1st to-be-pressed part 13f 2nd to-be-pressed part 14 Drive unit 17 Transfer unit 21 Support body 26,27,28 Holding member 26c, 27c, 28c Positioning part 54,61 Guide members 56, 62 Guide control holes 56a, 62a Restraining portions 56b, 62b Lifting portions 56d, 62d Escape portions 57, 65 Rotation control holes 57a, 65a Restraining portions 57b, 65b Lifting portions 57c, 65c Lowering portions 71, 72, 73 Damper 82 Rotation drive part 160 Second restricting member 166 Pressing inclined part 167 Restricting groove 170 First restricting member 176 Pressing inclined part 177 Restricting groove D Disk Da Center hole

Claims (7)

In the housing, a rotational drive unit that rotationally drives the disk, a support base that supports the rotational drive unit, an elastic support member that elastically supports the support base, a regulation mechanism that regulates the movement of the support base, In the disk device provided with a transfer mechanism for transferring the disk toward the rotation drive unit,
In the housing, a positioning part is provided for positioning the disk by hitting the peripheral part of the disk transferred by the transfer mechanism,
When the disc is transported toward the positioning portion by the transport mechanism, the support base is pushed in a direction closer to the positioning portion than the support position by the elastic support member by the restriction mechanism,
When the central portion of the disk is held by the rotation drive unit and the pressing force to the support base by the restriction mechanism is released, the side on which the support base is separated from the positioning unit by the elastic restoring force of the elastic support member A disk device that is returned to In the housing, a rotational drive unit that rotationally drives the disk, a support base that supports the rotational drive unit, an elastic support member that elastically supports the support base, a regulation mechanism that regulates the movement of the support base, and the disk A plurality of supports that hold the disk, a selection mechanism that moves any one of the supports to a selected position, and a disk that is supported by the support at the selected position by moving the rotation drive unit on the support base. In the disk device provided with the power transmission unit to be
Each support body is provided with a positioning portion for positioning the disk by hitting the peripheral edge of the disk,
When the central portion of the disk supported by the support at the selected position is held by the rotation drive unit facing the disk, the support base is positioned more than the support position by the elastic support member by the restriction mechanism. Being pushed in the direction of approaching,
When the central portion of the disk is held by the rotation driving portion and the pressing force to the support base by the restriction mechanism is released, the support base is separated from the positioning portion by the elastic restoring force of the elastic support member. A disk device characterized by being returned to the side.   The disk device according to claim 1, wherein the restriction mechanism is provided with a first restriction member that presses the support base in a direction approaching the positioning portion.   The disk device according to claim 3, wherein the restricting mechanism is provided with a second restricting member that sandwiches the support base from the opposite side with the first restricting member.   5. The control mechanism according to claim 1, wherein the support base is pushed in a direction approaching the positioning portion, and is also restricted in another direction intersecting with the direction approaching the positioning portion. The disk device described.   When the support base is pushed in a direction approaching the positioning portion by the restriction mechanism, the support base is moved in a direction approaching the disk within an elastic support range by the elastic support member, and the rotational drive is performed. 6. The disk device according to claim 1, further comprising a guide member that moves the portion to a position where the disk can be held.   The disk device according to claim 6, wherein the restriction mechanism and the guide member are operated with the same power.

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