JP5191165B2 - Disk unit - Google Patents

Description

  The present invention relates to a so-called slot-in type disk device in which a disk is inserted from an insertion opening opened in a housing, and more particularly to a disk device that can reliably prevent simultaneous insertion of two or more disks with a simple structure. .

  A slot-in type disk device for in-vehicle use has a slit-shaped insertion opening that is wide in the lateral direction on a decorative panel provided in front of the housing, and is a CD (compact disk) or DVD (digital). An exposed disc that is not inserted into the case, such as a versatile disc, is inserted into the housing through the insertion slot. A transfer mechanism having a transfer roller and an opposing clamping member is provided inside the housing. The disc inserted from the insertion port is sandwiched between the transfer roller and the opposing clamping member, and is sent inward of the housing by the rotational force of the transfer roller.

  A rotation drive mechanism that rotates the disk while holding the center hole of the disk and a head that reads a signal recorded on the disk are provided inside the housing, and the disk transferred by the transfer mechanism is It is carried in to the position where the center is held by the rotation drive mechanism. Alternatively, a storage area for storing a plurality of disks is provided inside the housing, and the disks are transferred one by one by the transfer mechanism and stored in the storage area.

  In this slot-in type disk device, it is assumed that only one disk is inserted from the insertion slot, but in rare cases, two disks may be overlapped and inserted from the insertion slot. In particular, in a disk device in which the storage area is provided inside the housing, it is misunderstood that two disks can be simultaneously stored in the storage area, and two stacked disks may be inserted from the insertion slot. obtain. However, even if two disks are stacked and carried into the housing, the rotary drive mechanism cannot hold the two disks at the same time, and the two disks cannot be stored in the storage area at the same time. Can not.

  Patent Document 1 discloses a disk device that can prevent a malfunction when two disks are continuously inserted from an insertion slot.

  This disk device includes an insertion detection lever that detects a disk inserted from an insertion slot, a transport roller that is started in the loading direction using a detection operation of the insertion detection lever as a trigger, and a disk that is transported by the rotational force of the transport roller. An insertion limit lever is provided which is actuated by the side end. When one disc is normally loaded, the disc is detached from the insertion detection lever, and the side end of the disc is also detached from the insertion limit lever. It is determined that the disc is in a normal disc loading operation when the disc is disengaged from both the insertion detection lever and the insertion limit lever. However, when another disk is inserted after the previously inserted disk, the insertion detection lever continues to be operated by the succeeding disk even if the side edge of the preceding disk is disengaged from the insertion limit lever. Therefore, it is possible to detect that the disk loading operation is abnormal.

  However, in the disc device described in Patent Document 1, if two discs are simultaneously loaded in a state where the discs are overlapped so that the centers coincide with each other, the disc comes off from both the insertion detection lever and the insertion limit lever. May occur and it may be determined that the disc has been successfully loaded.

  Next, Patent Document 2 discloses a disk device including a mechanism for detecting the thickness of an inserted disk.

  In this disk device, the upper roller member of the pair of roller members that sandwich the disk inserted from the insertion port can move upward according to the thickness of the disk. A lever member that is rotated by a vertical movement of the upper roller member and a switch that detects the movement of the lever member are provided in the housing. For example, when two discs are overlapped and inserted, the upper roller member moves greatly upward, the lever member rotates, and the switch operates to detect an abnormal disc insertion state. That's it.

Since the disk device described in Patent Document 2 has a structure having a lever member and a switch that are operated by an upper roller member, a mechanism for detecting abnormal insertion of the disk is complicated. Further, when the lever member malfunctions due to wear of the mechanism or the like, there is a possibility that it is erroneously detected that it is abnormal in spite of normal disk insertion.
JP 2001-31850 A JP 2006-196128 A

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a disk device that can effectively prevent two or more disks from being inserted and is less prone to erroneous detection.

The present invention relates to a transfer mechanism that transfers a disk inserted from an insertion opening that opens in a casing toward the inside of the casing, and a disk that is transferred to the inside of the casing by the transfer mechanism and is driven to rotate. In a disk device having a drive mechanism,
The transfer mechanism is provided with a driving roller that is rotated by the power of a motor, and an opposing clamping member that faces the driving roller and clamps the disk between the driving roller, and the driving roller is opposed to the opposing clamping member. An urging member that is movable in a direction approaching the member and that presses the drive roller toward the opposing clamping member is provided,
A stopper is provided between the insertion port and the driving roller, and before the disk inserted from the insertion port moves to a position where it overlaps with the stopper, the disk is interposed between the driving roller and the opposing clamping member. Sandwiched between
The stoppers are arranged as a pair separated left and right across a center that bisects the axial length of the driving roller, and each stopper is located between the axial end of the driving roller and the center. And
Distance in the thickness direction of the disk between the opposed clamping member and the stopper is larger than the thickness of the disc, it is characterized in that it is less than twice the thickness of the disk.

  In the disc device of the present invention, when two or more discs are stacked and inserted, the disc located on the drive roller side hits the stopper and cannot enter the housing any more. Since the disk on the driving roller side is stopped by the stopper, when the disk is stopped by the stopper, the rotational force of the driving roller is not transmitted to the other disk. Therefore, not only the disk stopped by the stopper but also the disk on the side that is in contact with the opposing clamping member is stopped. As described above, since the two disks are not carried together, it is possible to reliably prevent the two disks from being mistakenly carried into the housing.

According to the present invention, when only one disk is inserted from the insertion port, the disk is pressed against the opposing clamping member by the drive roller before the disk moves to a position where it overlaps the stopper. Therefore, the disc can be prevented from hitting the stopper, and the disc is less likely to be damaged.

The present invention also provides an insertion detection unit that detects that a disk has been inserted into the insertion slot and outputs an insertion detection signal for starting the drive roller, and the disk inserted into the insertion slot serves as the stopper. And a carry-in detection unit that detects that it has passed and moved to the inside of the housing,
A control unit is provided that stops or reverses rotation of the drive roller when the carry-in detection unit cannot detect the disc within a certain time after the insertion detection unit detects the disc. it can.

  By providing the insertion detection unit and the carry-in detection unit, when two disks are simultaneously inserted and the disk hits the stopper, the abnormality can be quickly recognized.

  Further, in the present invention, the transfer mechanism has a transfer moving part that moves toward the drive mechanism from a position approaching the insertion port, and the drive roller, the opposing clamping member, and the stopper are It can comprise as what is mounted in the said transfer movement part.

  In a structure in which the transfer mechanism moves in the housing, by mounting the stopper on the transfer moving part, even when the transfer moving part vibrates, the drive roller in the transfer moving part and the opposing clamping member It is easy to prevent the sandwiched disk from hitting the stopper.

  Further, the transfer mechanism is provided with a base member for supporting the drive roller, and the stopper is formed integrally with the base member, so that the number of parts can be reduced and the opposing clamping member And the relative position of the stopper can be determined with high accuracy.

  The disk device of the present invention can effectively prevent the two disks from being carried into the casing as they are even if the two disks are inserted from the insertion port of the casing. Further, when one disc is normally loaded, the disc is not damaged.

  FIG. 1 is an exploded perspective view showing the entire structure of a disk storage type disk device 1 as a disk device according to an embodiment of the present invention, FIG. 2 is a plan view showing a state where a drive unit has moved to an intervention position, and FIG. It is a top view which shows the state with which the disk was loaded in the support body. 4 shows the structure of the transfer unit. FIG. 5 is a front view of the transfer unit shown in FIG. 3 as viewed from the direction of the arrow IV, FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 5 is a partially enlarged view of FIG. 4. FIG. 7 is a plan view showing the positional relationship between the transfer unit and the disc, and FIG. 8 is a plan view showing the positional relationship between the detection unit and the disc.

  The disk storage disk device 1 shown in FIG. 1 has a box-shaped housing 2. In FIG. 1, the reference direction of the housing 2 is the lower side on the Z1 side, the upper side on the Z2 side, the left side on the X1 side, the right side on the X2 side, the front side on the Y1 side, and the rear side on the Y2 side. Further, the X1-X2 direction shown in the figure is the horizontal direction, and the Y1-Y2 direction is the depth direction or 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, the intermediate housing 4 has a front surface 7 and a right surface 8 of the housing 2, and an insertion port 23 into which the disk D is inserted is formed in the front surface 7. It is open. The upper housing 5 has a left side surface 9, a rear surface 10, and a ceiling surface 11 of the housing 2.

  As shown in FIG. 1, a first switching mechanism 12 is provided on the upper surface of the bottom surface 6 of the lower housing 3. The first switching mechanism 12 is provided with a rack member 30 that is driven in the Y1-Y2 direction by the power of a switching motor (not shown).

  In the lower housing 3, a unit support base 13 is provided on the first switching mechanism 12, and the unit support base 13 is elastically supported by a plurality of dampers 18 provided on the bottom surface 6 of the lower housing 3. . The unit support base 13 is provided with restriction shafts 13a protruding in the Y2 direction and restriction shafts 13b and 13b protruding in the Y1 direction.

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

  In the first switching mechanism 12, the moving force of the rack member 30 is applied to the lock switching slider 36 via the rotating arm 35. The lock switching slider 36 moves the lock member 54 and other lock members provided on the inner side of the Y1 side plate in the X1 direction or the X2 direction.

  A drive unit 14 is installed on the unit support base 13. The drive unit 14 is provided with a drive mechanism that holds and rotates the disk D. This drive mechanism is provided with a rotation drive unit 82 that holds the center hole of the disk D and rotates the disk D. Further, the drive unit 14 has an optical head 83, and the optical head 83 is directed in a direction approaching the rotational drive unit 82 and a direction away from the rotational drive unit 82 by a sled mechanism mounted on the drive unit 14. Move. At this time, the objective lens 83 a provided in the optical head 83 moves along the recording surface of the disk D clamped by the rotation driving unit 82, reads information recorded on the disk D, and reads information on the disk D. Or record.

  The drive unit 14 has an elongated drive base 81, and the unit support base 13 is provided with a support shaft 80 that rises perpendicularly to the end portion on the Y2 side in the drawing. The drive unit 14 has a drive base 81 supported by a support shaft 80 and can rotate in the horizontal direction around the support shaft 80. In FIG. 1, the drive unit 14 is in a retracted position away from the outer periphery of the disk D. When the drive unit 14 is rotated in the direction of the arrow (a) from the retracted position, the drive unit 14 is rotationally driven as shown in FIG. The part 82 moves to substantially the center of the lower housing 3 and is set at the intervention position.

  As shown in FIG. 1, the first switching mechanism 12 is provided with a switching slider 34 that moves in the Y1-Y2 direction together with the rack member 30, and a drive pin 33 is fixed to the switching slider 34. When the rack member 30 moves in the Y2 direction in the figure, the switching slider 34 also moves in the Y2 direction in the figure, and the drive unit 14 is rotated to the retracted position shown in FIG. . When the rack member 30 is moved in the Y1 direction shown in the drawing and the switching slider 34 is moved in the Y1 direction in the drawing, the drive unit 14 is rotated in the direction of the arrow (a) by the drive pin 33 and the intervention position shown in FIG. Moved to.

  As shown by the one-dot chain line in FIG. 3, in the rotation drive unit 82, the spindle motor Ms is fixed to the upper surface of the drive base 81 on the rotation free end side (Y1 side in FIG. 1), and rotates on the motor shaft of the spindle motor Ms. A table 86 is fixed. As shown in FIG. 1, the rotary table 86 has a disk-like support surface 86a on which the lower surface of the disk D is installed, and protrudes upward from the center of the support surface 86a to intervene in the center hole Da of the disk D. The convex part 86b is integrally formed. Further, the rotary table 86 is provided with a clamp mechanism having a clamp claw that protrudes radially from the inside of the convex portion 86b. The convex portion 86 b enters the center hole Da of the disk D, and the clamp pawl is pressed against the inner peripheral edge of the center hole Da, whereby the center hole Da of the disk D is held by the rotary table 86.

  As shown in FIG. 1, a mechanism base 15 parallel to the bottom surface 6 is provided on the upper portion of the intermediate casing 4, and a second switching mechanism 16 is provided on the mechanism base 15.

  In the intermediate casing 4, a transfer unit 17 that is a transfer moving unit is provided below the mechanism base 15 and inside the front surface 7. As shown in FIG. 1, a support shaft 17a is vertically fixed to 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 by the support shaft 17a. . In FIG. 1, the transfer unit 17 is in a standby position along the inside of the front surface 7. The transfer unit 17 in the standby position is located outside the outer peripheral edge of the disk D accommodated in the housing 2.

  As shown in FIG. 1, the second switching mechanism 16 is provided with an arcuate drive member 37, and the drive member 37 is driven by the power of a transfer switching motor (not shown) provided on the mechanism base 15. It is moved along an arc locus in the longitudinal direction. A rotation link 38 is rotatably supported on the mechanism base 15. When the drive member 37 moves in the Y2 direction, the rotation link 38 is rotated counterclockwise by the moving force of the drive member 37. At this time, the transfer unit 17 is rotated in the direction (b) with the support shaft 17a as a fulcrum by the rotational force of the rotation link 38, and is moved to the transfer operation position indicated by the broken line in FIG.

  As shown in FIGS. 4 and 5, the transfer unit 17 is provided with an upper base 101 and a lower base 102. The lower base 102 is formed of a metal plate. A side plate 102a is bent vertically on the X1 side, and a side plate 102b is bent vertically on the X2 side. The upper base 101 is also formed of a metal plate. A side plate 101a is bent vertically on the X1 side, and a side plate 101b is bent vertically on the X2 side. The side plate 102a and the side plate 102b of the lower base 102 and the side plate 101a and the side plate 101b of the upper base 101 are overlapped and fixed to form a frame body that communicates in the Y1-Y2 direction that is the depth direction.

  As shown in the plan view of FIG. 7, a synthetic resin bearing member 103 is fixed to the end portion of the lower base 102 on the X1 side, and the bearing member is also fixed to the upper base 101 coaxially with the bearing member 103. The bearing member is inserted into a support shaft 17a fixed perpendicularly to the bottom surface 6 of the lower housing 3, and the transfer unit 17 is supported so as to be able to rotate in the direction (b) as shown in FIG. Has been.

  As shown in FIGS. 4 and 5, an opposing clamping member 105 is fixed to the lower surface of the upper base 101. The opposing holding member 105 is made of a synthetic resin material having a low friction coefficient, and a sliding protrusion 105a on which the upper surface of the disk D slides is integrally formed on the lower surface thereof. As shown in FIG. 4, a pair of sliding protrusions 105 a and 105 a are formed at positions separated by the same distance from side to side across the center O of the transfer unit 17. As shown in the sectional view of FIG. 5, the lower surface of the sliding projection 105a is inclined so that the back side (Y2 side) of the housing 2 is slightly lifted to the Z2 side rather than the insertion port side (Y1 side). ing. Therefore, the tip side of the disk D that slides on the lower surface of the sliding projection 105a and is transferred into the housing 2 is slightly upward, and the tip side of the disk D is less likely to hit the convex portion 86b of the rotary table 86. .

  As shown in FIG. 4, a metal roller shaft 114 extending in the X1-X2 direction is provided in the drive unit 17. A long hole extending in the vertical direction is opened in the side plate 102a on the X1 side of the lower base 102, and a synthetic resin bearing member 111a is supported in the long hole so as to be movable up and down. Similarly, a synthetic resin bearing member 111b is supported on the side plate 102b on the X2 side of the lower base 102 so as to be movable in the vertical direction. Then, both end portions of the roller shaft 114 are rotatably inserted into the bearing members 111a and 111b.

  Inside the transfer unit 17, a pair of drive rollers 112 and 113 located on the outer periphery of the roller shaft 114 are provided. The drive rollers 112 and 113 are formed in a cylindrical shape from an elastically deformable material such as synthetic rubber. The diameter of the outer peripheral surface of each of the drive rollers 112 and 113 has a tapered shape that gradually decreases toward the center O. The drive rollers 112 and 113 have shaft holes having a constant diameter. FIG. 5 shows a shaft hole 112 a of one drive roller 112. The roller shaft 114 is rotatably inserted into the shaft hole 112 a of the drive roller 112 and the shaft hole of the drive roller 113. However, between the roller shaft 114 and each of the drive rollers 112 and 113, the drive roller 112 and the drive roller 113 do not move further in the axial direction at a position away from the center O by a predetermined distance. A restriction mechanism is provided for restricting.

  The bearing members 111a and 111b are urged upward (Z2 direction) by an elastic member such as a leaf spring, and by this elastic urging force, the sliding protrusions 105a and 105a of the opposing clamping member 105, the driving roller 112, The disk D is sandwiched between 113 and 113. At this time, the rotational force of the roller shaft 114 is transmitted to the drive rollers 112 and 113 due to the frictional force between the shaft holes of the drive rollers 112 and 113 and the roller shaft 114, and a conveying force is applied to the disk D. However, if the disc D is restricted from moving by an external force, the drive rollers 112 and 113 pressed against the disc D cannot rotate, and the roller shaft 114 slips in the shaft holes of the drive rollers 112 and 113. Rotate.

  As shown in FIG. 4, the end portion of the roller shaft 114 on the X1 side protrudes to the X1 side from the side plate 102a on the X1 side of the lower base 102, and is outside the side plate 102a and to the end portion of the roller shaft 114. The helical gear 106 is fixed. A shaft 107 extending perpendicular to the Z1 direction is fixed to the lower surface of the lower base 102 on the X1 side, and a helical gear 108a is rotatably supported on the shaft 107. The helical gear 108a and the helical gear 106 are always meshed with each other. A worm wheel 108b is integrally provided on the Z1 side of the helical gear 108a.

  As shown in FIG. 1, a pinion gear 17 b and a worm gear 17 c that is integrally formed with the pinion gear 17 b and extends upward are rotatable on the support shaft 17 a that extends vertically from the bottom surface 6 of the lower housing 3. It is supported by. The worm wheel 108b shown in FIG. 4 in a state where the bearing member 103 provided on the lower base 102 of the transfer unit 17 and the bearing member provided on the upper base 101 are rotatably supported by the support shaft 17a, The worm gear 17c shown in FIG. A roller motor M1 is provided on the bottom surface 6 of the lower housing 3, and the power of the roller motor M1 is decelerated and transmitted to the pinion gear 17b. Further, rotational power is transmitted from the worm gear 17c integrated with the pinion gear 17b to the worm wheel 108b shown in FIG.

  Therefore, either when the transfer unit 17 is stopped at the standby position indicated by the solid line in FIG. 2 or when it is stopped at the transfer operation position indicated by the broken line while rotating in the direction (b). Even if it exists, the roller shaft 114 can be rotated by the roller motor M1.

  As shown in FIGS. 4 and 5, the lower base 102 of the transfer unit 17 is integrally formed with a bent piece 115 bent vertically in the Z2 direction on the Y1 side. A pair of stoppers 115a and 115b projecting in the Z2 direction are integrally formed. The stoppers 115a and 115b are arranged at the same distance from the center O of the transfer unit 17 in the X1 direction and the X2 direction.

  As shown in FIG. 4, the distance H in the vertical direction (Z direction) between the respective apexes of the stoppers 115a and 115b and the lower surfaces of the sliding protrusions 105a and 105a of the opposing holding member 105 is the disc D It is wider than the thickness dimension T and less than twice the thickness dimension T.

  In this embodiment, the opposing clamping member 105 slides on the disk D, but a roller that can freely rotate may be provided as the opposing clamping member 105.

  As shown in FIGS. 7 and 8, a pair of detection pins (detection protrusions) 71 a and 71 b extending in the Z-axis direction are provided inside the front surface 7 of the housing 2. The detection pins 71a and 71b traverse the insertion port 23 vertically inside the insertion port 23 opened in the front surface 7. The detection pin 71a is supported in the housing 2 so as to be movable in the X1 direction starting from the initial position shown in FIG. 7, and the detection pin 71b is movable in the X2 direction starting from the initial position shown in FIG. It is supported by. The detection pin 71a and the detection pin 71b can move in the X direction independently of each other, and the detection pin 71a and the detection pin 71b are always moved to the initial positions shown in FIG. 7 by a biasing member such as a coil spring (not shown). Energized to return. In the state of the initial position shown in FIG. 7, the distance from the center O to the detection pin 71a is equal to the distance from the center O to the detection pin 71b.

  A detection member 72a is fixed to the detection pin 71a, and a detection member 72b is fixed to the detection pin 71b. As shown in FIG. 8, a switch support plate (not shown) is fixed inside the front surface 7 of the housing 2, and three detection switches 73, 74, and 75 are installed on the switch support plate. Yes.

  The detection switches 73 and 74 function as an insertion detection unit, and the detection switch 73 is turned on by the detection member 72a at the initial position, and the detection switch 74 is turned on by the detection member 72b at the initial position. It has been switched to. When the disk D is inserted from the insertion port 23, the detection pins 72a and 72b are pushed by the outer peripheral edge of the disk D, and as the disk D moves into the housing 2, the detection pins 71a and the detection member 72a are X1. In the direction, the detection pin 71b and the detection member 72b are moved in the X2 direction. Then, the detection switch 73 and the detection switch 74 are switched from ON to OFF.

  When the disk D moves beyond the positions of the stoppers 115a and 115b and further moves into the housing 2 by a predetermined distance and reaches the position D3 shown in FIG. 8, the detection switch 75 is turned off by the detection member 72b moving in the X2 direction. Is switched from ON to ON. This detection switch 75 functions as a carry-in detection unit, and it can be confirmed by the detection operation that the disk D is normally carried in.

  As shown in FIG. 8, the detection outputs of the respective detection switches 73, 74, and 75 are given to the control unit 81. The operation of the motor driver 82 that drives the roller motor M1 is controlled by the controller 81.

  As shown in FIG. 1, an area surrounded by the left side surface 9, the rear surface 10, and the ceiling surface 11 of the upper housing 5 is a disk storage area 20, and the disk storage area 20 includes a plurality of supports 21. Are arranged and stored so as to overlap in the Z1-Z2 direction which is the thickness direction. In this embodiment, six support bodies 21 are provided. Each support 21 is formed of a thin metal plate.

  The upper casing 5 is provided with support body selection means 22. The support body selection means 22 is provided with three screw shafts 25A, 25B, and 25C, and the screw shafts 25A, 25B, and 25C are rotatably supported on the ceiling surface 11. As shown in FIGS. 2 and 3, synthetic resin bearings 26 </ b> A, 27 </ b> A, 28 </ b> A are fixed to each of the plurality of supports 21 at three locations. And the bearing part 26A of each support body 21 is slidably inserted in the screw shaft 25A. And the bearing part 27A of each support body 21 is slidably inserted through the screw shaft 25B, and the bearing part 28A is slidably inserted through the screw shaft 25C. Further, spiral grooves 24 are formed on the outer peripheral surfaces of the screw shafts 25A, 25B, and 25C, and convex portions formed inwardly in the respective bearing portions 26A, 27A, and 28A are formed in the spiral grooves 24. It is slidably fitted.

  As shown in FIG. 1, in each screw shaft 25A, 25B, 25C, the spiral groove 24 is formed at a dense pitch at the upper end portion and the lower end portion of the shaft, and the spiral groove 24 is a sparse pitch at an intermediate portion of the shaft. It is formed with.

  When the screw shafts 25A, 25B, and 25C are rotationally driven in synchronization by a selection motor (not shown), the spiral grooves 24 move in the Z1 direction with respect to the convex portions provided in the bearing portions 26A, 27A, and 28A. The descending force or the ascending force in the Z2 direction is applied, and the respective support bodies 21 are sequentially moved in the Z1-Z2 direction shown in the figure, and the selection operation of the support bodies 21 is performed. When the support body 21 is positioned at a sparse pitch portion of the spiral groove 24, the support body 21 is at a selected position that is substantially the same height as the insertion port 23, and the support body 21 at the selected position and the lower position thereof. A large gap into which the drive unit 14 can enter is formed with the other support body 21 located at the 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), and the like, and has a center hole Da.

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

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

  Retaining claws 26b, 27b, and 28b are formed integrally with the retaining members 26, 27, and 28, respectively. The holding claws 26b, 27b, and 28b face the lower surface of the support body 21 with a space therebetween, and the outer periphery of the disk D supplied to the lower surface of the support body 21 is connected to the lower surface of the support body 21 and each holding claw. 26b, 27b, 28b. In the holding member 26, the base end portion of the holding claw 26b is pressed against the outer peripheral edge of the disk D by the urging force of the tension coil spring 29a, and the holding member 27 and the holding member 28 are also connected to the base of the holding claw 27b and the holding claw 28b. The end portion is pressed against the outer peripheral edge of the disk D by the urging force of the tension coil springs 29b and 29c. Therefore, the outer periphery of the disk D loaded on the lower surface of the support 21 at the selected position is sandwiched between the holding members 26, 27, and 28 and the lower surface of the support 21, and the outer periphery is The holding members 26, 27, 28 are gripped from three directions by the base end portions.

  As shown in FIGS. 2 and 3, a holding release member 403 is provided inside the left side surface 9 of the housing 2, and a holding release member 404 is provided inside the rear surface 10 of the housing 2. When any one of the supports 21 moves to the selected position, the holding member 26 provided on the support 21 that has reached the selected position faces the drive claw 403a of the hold release member 403. At the same time, the holding member 27 of the support 21 that has reached the selected position faces the driving claw 404a of the holding release member 404, and the holding member 28 of the support 21 that has reached the selected position has the driving claw 404b of the holding release member 404. Opposite to.

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

  As shown in FIGS. 2 and 3, a loading completion detection unit that detects the completion of loading of the disk D into the support 21 at the selected position is located inside the corner portion of the left side surface 9 and the rear surface 10 of the housing 2. 180 is provided. The carry-in completion detection unit 180 is provided with an optical detection element 181, and the optical detection element 181 is configured such that a light emitting element and a light receiving element face each other. Only one optical detection element 181 is provided in the casing 2 and is fixed to the casing 2, and only the holding member 28 of the support 21 that has moved to the selected position faces the optical detection element 181. Each holding member 28 provided on each support body 21 is formed with a detection portion 28h so as to project integrally.

  When the support body 21 moves to the selected position, the detection unit 28 h of the holding member 28 provided on the selected support body 21 faces the optical detection element 181. At this time, as shown in FIG. 2, if the disk D is not held by the support 21 moved to the selected position, the holding member 28 is greatly rotated in the γ4 direction by the tension coil spring 29c. The unit 28h intervenes between the light emitting element and the light receiving element of the optical detection element 181, and the detection light from the light emitting element is blocked by the detection unit 28h, and the detection output is turned off.

  Further, as shown in FIG. 3, when the loading of the disk D onto the support 21 at the selected position is completed, the holding member 28 is pushed by the outer peripheral edge of the disk D, and the holding member 28 is slightly rotated in the γ3 direction. To the holding position. When the holding member 28 reaches the holding position shown in FIG. 3, the detection unit 28 h integrated with the holding member 28 comes out of the optical detection element 181, and the detection light from the light emitting element enters a light-transmitting state, and the detection output of the optical detection element 181. Is turned on.

  The controller 81 can check whether or not the loading of the disk D onto the support 21 at the selected position has been completed normally by monitoring the switching of the detection output of the optical detection element 181. Further, when the selection operation of the support 21 is completed and any one of the supports 21 moves to the selection position, it can be confirmed whether or not the support 21 that has moved to the selection position holds the disk D.

Next, the operation of the disk storage disk device 1 will be described.
In the following, the disk D of the supports 21 located in the disk storage area 20 by operating an operation unit arranged on a decorative panel fixed in front of the front surface 7 of the housing 2 or a remote controller. The operation of selecting the empty support 21 that does not hold the disk and moving it to the selected position and loading the disc D inserted from the insertion slot 23 onto the empty support 21 at the selected position will be described.

(Selection of support)
When the empty support 21 in the disk storage area 20 is designated by the above operation, the rack member 30 and the switching slider 34 of the first switching mechanism 12 shown in FIG. 1 move in the Y2 direction, and the broken line in FIG. As shown, the drive unit 14 moves to a retracted position along the inside of the right side surface 8 of the housing 2. Further, the second switching mechanism 16 shown in FIG. 1 operates, the drive member 37 moves in the Y1 direction, and the rotation link 38 is rotated clockwise. As shown in FIG. Is set to a standby position along the inside of the front surface 7 of the housing 2.

  In a state where both the drive unit 14 and the transfer unit 17 are located away from the outer peripheral edge of the disk D held by the support body 21, the support body selection means 22 is started, and the three screw shafts 25A, 25B and 25C are rotated synchronously. Each support 21 is moved in the Z1-Z2 direction by the spiral groove 24 formed in the screw shafts 25A, 25B, 25C, and the empty support 21 designated by the above operation is almost the same as the insertion port 23. It moves to the selection position of the same height, and the selection operation | movement of the support body 21 is complete | finished.

  When the support 21 is selected, as shown in FIG. 1, the lock switching slider 36 is moved in the Y2 direction, and the lock member 54 is moved in the X2 direction. At this time, the regulation shaft 13a provided on the unit support base 13 is pushed down and regulated by the opposed regulation part 56a of the control hole 56 formed in the lock member 54, and similarly, the other regulation model provided on the Y1 side. The restriction shafts 13b and 13b provided on the unit support base 13 are pushed down and restricted by the opposed restriction portion of the control hole formed in the lock member. Therefore, the unit support base 13 is pushed down toward the bottom surface 6 of the housing 2, the dampers 18, 18, 18 are crushed, and the drive unit 14 is lowered together with the unit support base 13.

  When the empty support 21 moves to the selected position and stops, a command is given from the control unit 81, the switching motor provided in the lower housing 3 is started, and the first switching mechanism 12 is started. Then, the rack member 30 and the switching slider 34 move in the Y1 direction, and the driving unit 14 is rotated in the direction (a) by the driving pin 33 fixed to the switching slider 34, so that the intervention position shown in FIG. Rotate to stop. At this time, since the unit support base 13 is pushed down toward the bottom surface 6 of the housing 2 as described above, the convex portion 86b of the rotary table 86 of the rotation drive unit 86 is formed on the support 21 at the selected position. It is at a position spaced apart from the lower surface toward the Z1 side.

  When the empty support 21 moves to the selected position and stops, and then the drive unit 14 rotates to reach the intervention position shown in FIG. 2, the holding release member 403 moves in the Y2 direction as shown in FIG. The holding member 26 at the position closest to the insertion port 23 is rotated in the γ1 direction by the drive claw 403a of the holding release member 403. However, the other holding members 27 and 28 remain rotated in the γ4 direction.

  Furthermore, a shutter (not shown) provided inside the insertion slot 23 is opened, and the disk D can be inserted into the housing 2 from the insertion slot 23.

(Normal disk loading operation)
With the shutter in the insertion slot 23 opened, one disc D is inserted into the housing 2 from the insertion slot 23, and when this disc D is inserted to the position indicated by D1 in FIG. The detection pin 71a is moved in the X1 direction at the outer peripheral edge of the lens, the detection member 72a moving together with the detection pin 71a is separated from the detection switch 73, and the detection switch 73 is switched from ON to OFF. Further, the detection pin 71b moves in the X2 direction, the detection member 72b is detached from the detection switch 74, and the detection switch 74 is switched from ON to OFF. The control unit 81 recognizes that the disk D is inserted into the housing 2 when any one of the detection switches 73 and 74 is switched from ON to OFF. Alternatively, insertion of the disk D may be detected by an optical detector provided in addition to the detection switches 73 and 74.

  When it is detected that the disk D has been inserted, a roller motor M1 provided in the lower housing 3 is first started by a command from the control unit 81, and the pinion gear 17b and the worm gear shown in FIG. 17c is rotated. This rotational force is transmitted to the wall wheel 108b shown in FIG. 4, and further, power is transmitted from the helical gear 108a integrated with the worm wheel 108b to the helical gear 106 fixed to the roller shaft 114.

  Therefore, when the disk D reaches the position D1 shown in FIG. 8, the rotation of the roller shaft 114 is started, and the drive rollers 112 and 113 rotate in the disk loading direction. When the disk D is pushed further into the housing 2 than the position of D1, the disk D is sandwiched between the driving rollers 112 and 113 and the sliding protrusions 105a and 105a of the opposing clamping member 105 in the transfer unit 17. Accordingly, the disk D is fed toward the inside of the housing 2 by the rotational force of the drive rollers 112 and 113.

  In the transfer unit 17, the stoppers 115a and 115b are provided at the same distance from the center O in the X1 direction and the X2 direction. Therefore, when the disk D moves to a position indicated by D2 in FIG. 8, the outer peripheral portion of the disk D overlaps with the stoppers 115a and 115b. However, immediately before the outer periphery of the disk D overlaps with the stoppers 115a and 115b, the disk D is sandwiched between the driving rollers 112 and 113 and the opposed clamping member 105, and the disk D is opposed and clamped by the driving rollers 112 and 113. It is pressed against the sliding protrusions 105 a and 105 b of the member 105. Therefore, as shown in FIG. 5, the lower surface of the disk D carried into the housing 2 does not hit the stoppers 115a and 115b, and damage to the disk D can be prevented.

  When the disk D is carried further into the housing 2 than the position D2 shown in FIG. 8 by the rotational force of the drive rollers 112 and 113 and reaches the position D3, the detection pin is detected by the outer peripheral edge of the disk D. 71b and the detection member 72b move largely in the X2 direction, and the detection switch 75 is switched from OFF to ON by the detection member 72b.

  The control unit 81 starts a timer when the detection switch 73 or 74 that is an insertion detection unit is switched from ON to OFF, and the detection switch 75 that is a carry-in detection unit is switched from OFF to ON within a certain time. The disk D is determined to be transported normally, and the subsequent disk loading operation is continued. However, if the detection switch 75 is not switched from OFF to ON within the predetermined time, it is determined that there is an abnormality in the conveyance of the disk D before the disk D moves from the position D1 to the position D3. The roller M1 is stopped and the loading operation of the disk D is stopped. Alternatively, when the detection switch 75 is not switched from OFF to ON within the predetermined time, the roller motor M1 is reversed, the roller shaft 114 is rotated in the unloading direction, and the disk D is ejected toward the insertion slot 23. To do.

  When the disk D that has been normally transported is carried into the housing 2 further than the position of D3 and sent to the position indicated by D4 in FIG. 2, the second switching mechanism 16 is provided. The transfer switching motor (not shown) is started, the arcuate drive member 37 shown in FIG. 1 is moved in the Y2 direction, and the rotation link 38 is rotated counterclockwise. At this time, the transfer unit 17 is rotated in the direction (b) with the support shaft 17a as a fulcrum by the turning force of the rotation link 38, and is stopped at the transfer operation position indicated by the broken line in FIG. During this time, the roller motor M1 continues to operate, and the disk D is sent toward the lower surface of the support 21 by both the rotational force of the drive rollers 112 and 113 and the rotation of the transfer unit 17 in the direction (b). It is.

  Since the stoppers 115a and 115b are mounted on the transfer unit 17, while the transfer unit 17 rotates in the direction (b), the driving rollers 112 and 113 and the opposing clamping member 105, and the stoppers 115a and 115b, The relative position of does not change. Further, when the transfer unit 17 rotates, the disk D is pressed against the sliding protrusion 105 a of the opposing clamping member 105. Therefore, even if the transfer unit 17 is shaken up and down due to body vibration or the like, it is possible to avoid the lower surface of the disk D being transported from sliding with the stoppers 115a and 115a.

  When the disk D sandwiched between the drive rollers 112 and 113 of the transfer unit 17 and the opposing sandwiching member 105 is supplied to the lower surface of the support 21 at the selected position, the outer periphery of the disk D is It is sandwiched between the lower surface and the holding claw 27 b of the holding member 27, and is sandwiched between the lower surface of the support 21 and the holding claw 28 b of the holding member 28. Further, the holding member 28 is pushed and rotated in the γ3 direction by the outer peripheral edge of the disk D, and the detection unit 28h provided on the holding member 28 comes out of the optical detection element 181, and the detection output of the optical detection element 181 is obtained. Is turned on.

  The control unit 81 starts a timer when the detection switch 73 or the detection switch 74 shown in FIG. 8 is switched from ON to OFF, and it is detected that the disk D is inserted into the insertion slot 23, and then, for a predetermined time. Within this, it is monitored whether or not the detection output of the optical detection element 181 is turned ON. If the optical detection element 181 is turned on within a predetermined time, it is determined that the disk D is normally loaded on the lower surface of the support 21 at the selected position. At this time, the roller motor M1 is stopped, and the rotation of the drive rollers 112 and 113 is stopped. Therefore, the disk D is supplied to the lower surface of the support 21 at the selected position and is stopped at the transfer operation position indicated by the broken line in FIG. It stops in the state where it was pinched by.

  When the optical detection element 181 is not turned on within the predetermined time, it is determined that the disk D has not been normally loaded onto the lower surface of the empty support 21, and the roller motor M1 is reversed to drive the drive roller 112. , 113 are rotated in the disk unloading direction, the transfer switching motor is started in the reverse rotation direction, the transfer unit 17 is rotated in the clockwise direction, and is moved to the standby position indicated by the solid line in FIG. The operation of discharging from 23 is performed.

  That is, when it is detected that the disk D is inserted from the insertion slot 23, it is first confirmed whether or not the disk D is normally loaded by the detection switch 75 which is a loading detection unit. It is confirmed by the 180 optical detection elements 181 whether or not the disk D is normally loaded. If the disk D moves to the position D3 shown in FIG. 8 and the detection switch 75 is switched from OFF to ON, a timer is started, and the optical detection element 181 is switched to ON within a predetermined time thereafter. By detecting whether or not, it may be confirmed whether or not the disk D is loaded on the lower surface of the support 21.

(Control action when two discs are inserted)
When the two disks D are overlapped and inserted so that their centers substantially coincide with each other from the insertion opening 23, the detection pins 71a and 71b are pushed and spread by the two disks D, and the detection switches 73 and 74 are turned on. Since it is switched from ON to OFF, the control unit 81 recognizes that the disk D is inserted. Therefore, the roller motor M1 is started and the roller shaft 114 is rotated in the carry-in direction. For this reason, the two stacked disks D have their Y2 front ends sandwiched between the driving rollers 112 and 113 and the opposing clamping member 105, and are driven into the housing 2 by the rotational force of the driving rollers 112 and 113. Try to be sent towards.

  However, when the two stacked disks D move to the position indicated by D2 in FIG. 8, the outer peripheral edge of the disk D positioned on the lower side facing the Y2 side hits the stoppers 115a and 115b, and cannot move further in the Y2 direction. That is, as shown in FIG. 6, the distance H between the stoppers 115a and 115b and the sliding protrusion 105a of the opposing clamping member 105 is wider than the thickness dimension T of the disk D and is twice the thickness dimension T. Therefore, if the disc D is one sheet D, it passes through the stoppers 115a and 115a while being pressed against the sliding protrusion 105a, but the two-layer disc D is inserted. Then, the outer peripheral edge of the lower disk D hits the stoppers 115a and 115b and cannot move further toward the inside of the housing 2.

  At this time, since the driving rollers 112 and 113 cannot rotate while being pressed against the lower surface of the lower disk D, the roller shaft 114 driven by the roller motor M1 rotates in a slip manner in the shaft holes of the driving rollers 112 and 113. . Since the driving rollers 112 and 113 are in contact with the lower disk and the roller shaft 114 is slip-rotated, a moving force acts on the upper disk D pressed against the sliding protrusions 105a and 105a of the opposing clamping member 105. The upper disk D also remains stopped at the same position as the lower disk D (position D2 shown in FIG. 8).

  Accordingly, since the detection switch 75 is not switched ON within a certain time after the detection switch 73 or the detection switch 74 shown in FIG. 8 is switched from ON to OFF, the control unit 81 detects that the disk D is not properly loaded. It can be judged immediately. Accordingly, the roller motor M1 is stopped and the loading of the disk D is stopped, or the roller motor M1 is reversed and the two disks D are ejected from the insertion slot 23.

  In this manner, immediately after the outer peripheral edge of the disk D on the Y2 side is sandwiched between the drive rollers 112 and 113 and the opposing clamping member 105, the stoppers 115a and 115b prevent the lower disk D from being carried in. Abnormal insertion can be prevented before the stacked disks move to the back side of the housing 2. For this reason, there is no problem that the two disks D cannot be ejected while entering the inside of the housing 2. Further, as described above, when one disk is normally loaded, the disk D is moved to the opposing holding member 105 by the driving rollers 112 and 113 immediately before the disk D moves to a position where it overlaps the stoppers 115a and 115b. Since it is pressed, the loaded disk D does not hit the stoppers 115a and 115b.

  Next, immediately after one disk D is inserted from the insertion slot 23 and normally begins to be carried into the inside of the housing 2 by the rotational force of the driving rollers 112 and 113, another sheet D is inserted from the bottom of the disk. Control operation when the disc is inserted into the insertion slot 23 or when the lower disc is overlapped with the upper disc D with its center shifted to the Y1 side and inserted into the insertion slot 23. Will be explained.

  When the lower disk D is inserted with being shifted to the Y1 side with respect to the upper disk D, the upper disk passes between the stoppers 115a and 115b and the sliding protrusions 105a and 105a and is driven. By the rotational force of the rollers 112 and 113, it can move further into the housing 2 than the position D3 shown in FIG. Therefore, since the detection switch 75 is turned on within a predetermined time after the detection switch 73 or the detection switch 74 is turned off, the control unit 81 determines that the disk D is being conveyed normally, and the roller motor The operation of M1 is continued.

  However, immediately after the lower disk D is sandwiched between the upper disk and the driving rollers 112 and 113, the outer peripheral edge of the lower disk D hits the stoppers 115a and 115b, and the lower disk D becomes After that, it cannot move to the inside of the housing 2. At this time, since the roller shaft 114 slips and rotates while the drive rollers 112 and 113 are in pressure contact with the lower surface of the lower disk D, the lower disk D not only stops but also a conveying force is applied to the upper disk D. Disappear.

  Since the lower disk D and the upper disk D stop in the middle of the transport path, the optical detection element 181 of the loading completion detection unit 180 shown in FIG. 3 is turned on within a predetermined time after the insertion of the disk D is detected. Thus, the completion of loading of the disk D cannot be detected. Therefore, the control unit 81 can determine that the disk D has not been properly loaded, and can reverse the roller motor M1 to eject the disk D.

  In this way, when the driving rollers 112 and 113 are positioned on the same lower side as the stoppers 115a and 115b, and the lower disk D is stacked between the driving rollers 112 and 113, the roller motor M1 is turned on. Since the idling mechanism is provided so that the rotational force is not transmitted to the drive rollers 112 and 113, it can be determined that the disk is operating abnormally even when the two disks are inserted back and forth. Can be prevented from being carried into the housing 2.

(Disc transfer operation to the rotary drive)
When it is determined that one disk D is normally loaded, the optical detection element 181 of the loading completion detection unit 180 is turned on, and the disk D is loaded on the lower surface of the support 21 at the selected position, FIG. The first switching mechanism 12 shown is started, the rack member 30 and the switching slider 34 are moved in the Y1 direction, and the lock switching slider 36 is further moved in the Y1 direction via the rotating arm 35. Therefore, the lock member 56 provided on the Y2 side of the lower housing 3 is moved in the X1 direction, and the regulation shaft 13a provided on the unit support base 13 is inserted into the control hole 56 formed in the lock member 54. Guided by the delivery restricting portion 56b, the restricting portion 13a is lifted and held in the Z2 direction. Similarly, the restriction shafts 13b and 13b are lifted and held by the delivery restriction portion of the other lock member provided in the Y1 direction of the lower housing 3.

  As a result, each damper 18 elastically extends in the Z2 direction, the unit support base 13 is lifted in the Z2 direction, the drive unit 14 rises together, and the protrusion provided on the rotary table 86 of the rotary drive unit 82. The portion 86b enters the center hole Da of the disk D located on the lower surface of the support 21 at the selected position. Further, when the first switching mechanism 12 is started and the rack member 30 and the switching slider 34 move in the Y1 direction, the moving force is transmitted to the clamp mechanism in the drive unit 14 and the outer periphery of the convex portion 86b of the rotary table 86. The clamp claw protrudes from the center hole Da of the disk D positioned on the lower surface of the support 21 and is clamped to the rotation drive unit 82 of the drive unit 14.

  Thereafter, the second switching mechanism 16 shown in FIG. 1 is operated, and the transfer unit 17 is rotated clockwise from the position of the broken line shown in FIG. 2 to return to the standby position shown by the solid line. At this time, the drive rollers 112 and 113 are rotated in the same direction as when the disk D is loaded. While the drive rollers 112 and 113 roll on the surface of the disk D, the transfer unit 17 returns to the standby position, and the drive rollers 112 and 113 move away from the disk D.

  Further, the holding release member 404 shown in FIG. 3 moves in the X1 direction, and the holding member 27 and the holding member 28 are rotated in the γ3 direction. As described above, when the disk D is supplied to the lower surface of the support 21, since the holding member 26 is previously rotated in the γ1 direction, the outer peripheral portion of the disk D clamped to the rotation driving unit 82. Therefore, the holding claws 26b, 27b, 28b of all the holding members 26, 27, 28 are removed.

  Thereafter, when the first switching mechanism 12 operates and the rack member 30 and the switching slider 34 move in the Y1 direction, the moving force is applied to the lock switching slider 36 via the rotating arm 35, and this lock switching slider. 36 moves in the Y1 direction, and the lock member 54 is further moved in the X1 direction. Therefore, the restriction shaft 13a provided on the unit support base 13 is positioned in the drive escape portion 56c of the control hole 56 provided in the lock member 54, and the restriction shafts 13b and 13b are provided on the Y1 side. It is located in the relief part of the control hole formed in the lock member. Therefore, the unit support base 13 is elastically supported by the damper 18. At this time, the disk D clamped by the rotation drive unit 82 is slightly separated downward from the lower surface of the support 21 at the selected position.

  Therefore, after that, the disk D is rotated together with the rotary table 86 by the spindle motor Ms, and the reproduction or recording operation of the recorded information is performed by the optical head 83.

  In the embodiment, the disk storage type disk device 1 having the disk storage area 20 in the housing 2 has been described as an example. However, the disk storage area 20 is not provided in the housing 2 and is inserted. It may be a single-drive type disk device in which a disk inserted through the opening and carried in is driven by a drive unit, and the disk after completion of driving is carried out to the insertion opening by a transfer mechanism.

  In the above-described embodiment, the transfer unit 17 having the drive rollers 112 and 113, the opposing clamping member 105, and the stoppers 115a and 115b rotates and moves from the standby position to the transfer operation position. 113, the opposing clamping member 105, and the stoppers 115a and 115b may be a disk device that is arranged without moving inside the insertion port formed in the housing.

  Further, the stoppers 115a and 115b may be disposed on the back side (Y2 side) of the housing with respect to the drive rollers 112 and 113.

1 is an exploded perspective view showing the overall structure of a disk storage type disk device according to an embodiment of the present invention; A plan view showing a state in which the drive unit has moved to the intervention position, A plan view showing a state in which the disc is held on the support, The front view which looked at the transfer unit which is a transfer mechanism from the IV arrow direction of FIG. Sectional drawing which cut | disconnected the transfer unit by the VV line shown in FIG. FIG. 4 is an enlarged front view of the transfer unit shown in FIG. The top view which shows the positional relationship of the stopper provided in the transfer unit, and a disk, A plan view showing a positional relationship between a detection unit provided in a housing and a disk;

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc storage type disk apparatus 2 Housing | casing 12 1st switching mechanism 14 Drive unit 16 2nd switching mechanism 17 Transfer unit 17a Support shaft 21 Support body 20 Disk storage area 22 Support body selection means 26, 27, 28 Holding member 26a 27a, 28a Holding claws 71a, 71b Detection pins 71b, 72b Detection members 73, 74 Detection switch 75 functioning as an insertion detection unit Detection switch 82 functioning as a carry-in detection unit Rotation drive unit 83 Optical head 86 Rotation tables 112, 113 Drive Roller 114 Rotor shaft 115a, 115b Stopper 180 Loading completion detection unit 181 Optical detection element

Claims (5)

A transfer mechanism for transferring a disc inserted from an insertion opening opened in the case toward the inside of the case; and a drive mechanism for holding and rotating the disc transferred to the inside of the case by the transfer mechanism. In the disk device having
The transfer mechanism is provided with a driving roller that is rotated by the power of a motor, and an opposing clamping member that faces the driving roller and clamps the disk between the driving roller, and the driving roller is opposed to the opposing clamping member. An urging member that is movable in a direction approaching the member and that presses the drive roller toward the opposing clamping member is provided,
A stopper is provided between the insertion port and the driving roller, and before the disk inserted from the insertion port moves to a position where it overlaps with the stopper, the disk is interposed between the driving roller and the opposing clamping member. Sandwiched between
The stoppers are arranged as a pair separated left and right across a center that bisects the axial length of the driving roller, and each stopper is located between the axial end of the driving roller and the center. And
Distance in the thickness direction of the disk between the opposed clamping member and the stopper is larger than the thickness of the disk, the disk device, characterized in that less than 2 times the thickness of the disk. The disk device according to claim 1, wherein a distance from the center to each stopper is less than a radius of the disk. An insertion detection unit that detects that a disk has been inserted into the insertion port and outputs an insertion detection signal for starting the drive roller, and the disk inserted into the insertion port passes through the stopper and passes through the stopper. And a carry-in detection unit that detects that it has moved inside,
Within a certain time after the disk has been detected by the insertion detecting unit, the carry when the detection unit can not detect the disk, the rotation of the driving roller is stopped or claim controller is provided to reverse 1, Or the disk apparatus of 2 . The transfer mechanism has a transfer moving unit that moves toward the drive mechanism from a position approaching the insertion port, and the drive roller, the opposing clamping member, and the stopper are mounted on the transfer moving unit. It claims 1 and is to a disk apparatus according to any one of 3. Wherein the transfer mechanism, the driving roller base member for supporting is provided a disk drive according to any one of 4 to the stopper claims 1 are formed integrally with the base member.

Images