JP2007200491A - Disk retractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk player which automatically retracts an optical disk by slightly inserting the optical disk without pushing the optical disk into the position of the maximum external form of the optical disk and prevents the optical disk from being sprung out when the optical disk is ejected. <P>SOLUTION: In an initial state of retracting the optical disk 92, the optical disk 92 is made to roll on an antislip rubber 17 by friction force between a driving wheel 82 on a retracting lever 78 and the outer circumferential face of the optical disk to pull the optical disk 92 in. In front of a chucking position, the driving force of a motor 62 turns the retracting lever 78 by a control lever 86 and turns a switching lever 70 in interlock with a sliding operation of a slide plate by using the sliding operation of the slide plate 50 that is moved by a pinion 65 and a rack 61 to separate a transmission gear 73 from a middle gear in a gear train 64, thereby interrupting the driving force to the driving wheel, which acts as as a roller to perform the final retracting operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk retracting apparatus, and more particularly to a disk retracting apparatus that pulls the disk into an operating position by pressing a rotating body on the outer periphery of the disk.

  When performing recording / reproduction using an optical disc such as a CD (Compact Disc), the optical disc can be moved in the radial direction with respect to the disc while being drawn into a predetermined mounting position of the player and rotated by a turntable. Use to read and write signals. Therefore, such an optical disc player has to be pulled into a predetermined recording / reproducing position for recording / reproducing.

  A general optical disk retracting apparatus is a tray-type apparatus, and an optical disk is placed in a recess on the tray, and the optical disk is moved to a performance position by retracting the tray in this state. Such a tray-type pull-in device has a disadvantage that the size of the disc player becomes large because a tray that is slightly larger than the optical disc is used.

  In order to overcome such drawbacks, a slot-in type optical disc player has been proposed. In the slot-in method, when an optical disc is inserted into an insertion slot and pushed in halfway, an internal drawing device automatically draws the optical disc and mounts it at a recording / reproducing position. In such an apparatus, the number of operations for inserting an optical disk is reduced, and the space is reduced by not using a tray. Further, the degree of freedom of the posture of the recording / reproducing apparatus is improved as compared with the tray type.

  However, the conventional slot-in system has a drawback in that the operation of loading / unloading the disk into / from the slot is difficult because the disk is pulled in by using a roller that can freely rotate. Also, when inserting, the disc cannot be loaded correctly unless the disc is manually pushed until the maximum outer shape of the disc passes through the roller installation line. Also, when ejecting the optical disc, there is a drawback that the disc is momentarily ejected.

  Japanese Patent Laid-Open No. 2005-85342 includes a disc insertion slot into which an optical disc to be reproduced is inserted, and a conveyance mechanism that conveys the optical disc inserted from the disc insertion slot, and the conveyance mechanism is in the same direction as the conveyance direction of the optical disc. Provided on the outer peripheral surface of the optical disk to be conveyed, rotated and rotated to convey the optical disk, a conveying member to which the conveying roller is attached, and a conveying member between the conveying rollers. A disk that has a rotation fulcrum that moves in the direction of approaching and separating from the outer peripheral surface of the optical disk that transports the transport roller, and a tension coil spring that biases in the direction of the outer peripheral surface of the optical disk that transports the transport member. Is prevented from being soiled.

The disk pull-in device having such a configuration has a drawback that the structure becomes very complicated because a pair of transport rollers are arranged on the transport member so as to sandwich the disk from both sides. In addition, since the conveying member must be provided, the space cannot always be made compact.
JP 2005-85342 A JP 2005-174441 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a slot-in type disc pull-in device that can reliably pull an optical disc into a recording / reproducing position without using a tray.

  Another object of the present invention is to provide a disk retracting apparatus that does not require manual pressing to the position where the maximum diameter of the optical disk passes through the retracting rotary body.

  Still another object of the present invention is to provide a disk retracting apparatus that prevents the disk from jumping out when the disk is ejected.

  Still another object of the present invention is to provide a disk retracting device that can be further miniaturized.

  The above-described problems and other problems of the present invention will be made clear by the technical idea of the present invention described below and the embodiments thereof.

The main invention of the present application is a disk retracting apparatus that presses a rotating body against the outer peripheral portion of the disk and retracts the disk to an operating position.
A retracting lever that rotatably supports the rotating body;
A rotation driving means for transmitting a rotation driving force to the rotating body;
Switching means for switching between conduction and interruption of the rotational driving force to the rotating body;
And when the disk is pulled to a predetermined position by the friction force between the rotary body and the disk, and the switching means when the disk is pulled to a predetermined position. Accordingly, the present invention relates to a disk retracting apparatus characterized in that transmission of a rotational driving force to the rotating body is interrupted to make the rotating body free, and the disk is retracted by movement of the retracting lever.

  Here, a slide plate having a rack that meshes with the drive gear is provided, and in conjunction with the sliding of the slide plate, the rotation driving force is interrupted by the switching means, and the disk is retracted by the movement of the retract lever. May be performed. The pull-in lever may be rotated via a control lever in conjunction with the sliding of the slide plate, and the disk may be pulled in by a rotating body supported by the pull-in lever. Further, the pin implanted in the control lever is pushed by the peripheral edge of the unusually shaped opening of the slide plate to rotate the control lever, and the rotational movement of the control lever is transmitted to the pull-in lever. A disc pull-in operation may be performed. Further, the switching means may be constituted by a switching lever, which rotates in conjunction with the sliding of the slide plate, and interrupts transmission of the driving force to the rotating body on the pull-in lever. In addition, a pin implanted in the control lever is pushed by a peripheral edge of the irregularly shaped opening of the slide plate, and engages with an engagement hole of the switching lever. When the control lever rotates, the switching lever You may rotate in conjunction. Further, the one end of the disk may be drawn by the rotating body while the other end of the disk is pressed against the anti-slip member.

  In a preferred embodiment of the present invention, in a slot-in-slim type disk drive, a positive rotation driving means such as a conveyance rubber roller is used as a mechanism for taking in and out from the inside of the disk slot. The present invention relates to an auto-loading mechanism that can be loaded only by itself.

  Such a slot-in type disk pull-in device can provide a layout-free disk drive because the orientation in the loading direction is not limited to the vertical and horizontal directions. Further, this type of conventional disk pull-in device has been limited to portable personal computers due to operational quality problems. On the other hand, this mechanism can be mounted on in-vehicle sets that require auto-loading and audio sets that require a high-grade quality, which enables miniaturization and design of in-vehicle sets and portable PCs. It becomes possible to specialize.

  The main invention of the present application is a disk retracting device that pulls a disk into an operating position by pressing the rotating body against the outer periphery of the disk, a pulling lever that rotatably supports the rotating body, and a rotational driving force for the rotating body. And a switching means for switching between transmission and interruption of the rotational driving force with respect to the rotating body, and transmits the rotational driving force to the rotating body between the rotating body and the disk. The disk is pulled in halfway by the frictional force, and when the disk is pulled to the specified position, the switching means cuts off the transmission of the rotational driving force to the rotating body to make the rotating body free, and the disk is pulled in by moving the pulling lever. It is what I made it.

  Therefore, according to such a disk retracting device, until the middle of the disk retracting process, the disk is retracted by the frictional force between the rotor and the disk that is actively driven to rotate, and then the disk is in a free state. The disk can be pulled in by the movement of the pulling lever that holds the rotating body, and for this purpose, the disk must be pulled in stably and securely, and the disk must be manually pushed to the maximum outer shape of the disk. Disappear.

  The present invention will be described below with reference to embodiments shown in the drawings. As shown in FIGS. 1 and 2, this optical disc player includes a flat outer casing 95. The front side of the outer casing 95 is composed of a front panel 96. The front panel 96 is formed with a horizontally long slit-shaped insertion port 97, and when the optical disk 92 is inserted into the insertion port 97, the front panel 96 is automatically retracted. In particular, as shown in FIG. 2, the outer casing 95 has a concave portion 98 on the lower side on the right end side, and the thickness of the outer casing 95 on the right end portion is reduced by the concave portion 98. This constitutes a so-called slim drive type disc player.

  Next, the internal structure of such a disc player will be described with particular reference to FIG. This disc player includes a chassis 10, and a base unit 11 is mounted on the chassis 10 so as to be movable up and down. That is, the base unit 11 is provided with a pair of support portions 12 at the lower end side in FIG. 3, and is moved up and down with the support portion 12 as a rotation fulcrum, and a pin 13 provided on the other end side is provided. The cam part 15 of the raising / lowering cam 14 raises / lowers (refer FIG. 10). A circular turntable 16 is disposed on the base unit 11, and the optical disk 92 is drawn onto the turntable 16 and rotated. A non-slip rubber 17 is disposed on one side end of the chassis 10 and on the side of the base unit 11.

  A lateral kick lever 20 is disposed on the base unit 11, and the lateral kick lever 20 is rotatably supported by a fulcrum pin 21 on the chassis 10. The side kick lever 20 is urged to rotate clockwise by the winding spring 22. A roller 23 is placed on the tip of the lateral kick-out lever 20.

  A trigger lever 24 is disposed on the chassis 10 adjacent to the lateral kick-out lever 20. The trigger lever 24 includes a pair of elongated holes 26 at the distal end side of the inclined portion 25. These long holes 26 are engaged with pins 27 planted on the chassis 10. Further, the trigger lever 24 is urged diagonally upward to the right in FIG.

  A roller escape slider 32 is disposed so as to intersect the tip end side of the trigger lever 24. The roller escape slider 32 includes a long hole 33, and a pin 34 and a pin 27 that engages with the long hole 26 of the trigger lever 24 are engaged with the long hole 33. Further, the roller escape slider 32 is slidably biased rightward in FIG.

  A roller escape lever 39 is further provided in the vicinity of the roller escape slider 32 and is supported rotatably by a fulcrum pin 40 planted in the chassis 10. In addition, the roller release lever 39 includes a pin 41, and the pin 41 is pressed by the distal end portion of the trigger lever 24 described above. The roller escape lever 39 is provided with an engagement hole 42 at the tip thereof.

  On the upper side of the roller escape lever 39, a kick-out lever 43 is arranged so as to overlap. The kick-out lever 43 is rotatably supported by a fulcrum pin 44 implanted in the chassis 10 and is urged to rotate clockwise by a winding spring 45, and at the tip of the kick-out lever 43. A roller 46 is attached.

  A slide plate 50 is slidably mounted on the chassis 10. A pin 51 implanted at the tip of the slide plate 50 is engaged with the engagement hole 42 of the roller escape lever 39. An L-shaped hole 52 is formed in the slide plate 50. The L-shaped hole 52 receives a pin 54 implanted in the transmission lever 53. The transmission lever 53 is rotatably supported by a fulcrum pin 55 planted on the chassis 10 and is urged to rotate clockwise by a winding spring 56. A pin 57 planted on the transmission lever 53 is engaged with the elevating cam 14.

  The slide plate 50 is formed with an odd-shaped opening 60, and a rack 61 is formed on the left side on the lower end side in FIG. A motor 62 is mounted on the chassis 10, and a worm wheel 63 is fixed to the output shaft of the motor 62. The worm wheel 63 is transmitted to the pinion 65 via a gear train 64. A pinion 65 is engaged with the rack 61 of the slide plate 50. An optical sensor 66 is attached on the chassis 10.

  A switching lever 70 is disposed on the chassis 10 below the slide plate 50. The switching lever 70 is rotatably supported by a fulcrum pin 71 formed of a fixed pin on the chassis 10 and has a deformed engagement hole 72. In addition, a transmission gear 73 is attached to the tip, and a pulley 74 is provided coaxially with the transmission gear 73. One end of a belt 75 is suspended around the pulley 74.

  A pull-in lever 78 is disposed above the switching lever 70 and the slide plate 50. The pull-in lever 78 holds a pulley 79 at one end, and a support shaft of the pulley 79 serves as a fulcrum pin 80. In other words, the pull-in lever 78 is rotatably supported by the fulcrum pin 80. Then, the other end of the belt 75 is stretched around the pulley 79. A gear train 81 is provided on the pull-in lever 78, and a driving wheel 82 is attached to the end of the gear train 81. The pull-in lever 78 is formed with an arc-shaped long hole 83.

  A control lever 86 is arranged so as to overlap the switching lever 70 and the slide plate 50. The control lever 86 is rotatably supported by a fulcrum pin 87 planted in a cut-and-raised portion (not shown) of the chassis 10 and a pair of engagement pins 88 and 89 are planted. One engagement pin 88 is engaged with the irregularly shaped opening 60 of the slide plate 50 and the engagement hole 72 of the switching lever 70. On the other hand, the other engagement pin 89 of the control lever 86 is engaged with the arc-shaped elongated hole 83 of the pull-in lever 78.

  Next, the drawing operation of the optical disc 92 by the disc player configured as described above will be described. As shown in FIG. 1, the leading end portion of the optical disk 92 is inserted into the outer casing 95 of the disk player through the slit-shaped insertion port 97 of the front panel 96. When a part of the optical disk is inserted into a part of the outer casing 95 as shown in FIG. 4, the optical sensor 66 detects the optical disk 92, and the motor 62 rotates accordingly. The rotation of the motor 62 is transmitted to the worm wheel 63 and the gear train 64. Since the intermediate gear in the gear train 64 meshes with the transmission gear 73 attached to the tip of the switching lever 70, the gear 73 is rotationally driven. The rotation of the gear 73 is transmitted to the pulley 79 on the opposite side via the pulley 74 and the belt 75. The rotation of the pulley 79 is transmitted to the drive wheel 82 via the gear train 81. Therefore, the drive wheel 82 is driven to rotate clockwise in FIG.

  As described above, when the drive wheel 82 on the pull-in lever 78 is driven to rotate clockwise, the optical disk 92 is rotated counterclockwise by the frictional force between the drive wheel 82 and the outer peripheral surface of the optical disk 92. For this reason, the optical disk 92 is drawn while rolling on the non-slip rubber 17 arranged on the left side of the base unit 11. When the optical disk 92 is drawn to the position shown in FIG. 5, the front end portion of the optical disk 92 pushes the roller 73 attached to the front end portion of the lateral kick lever 20. Then, the pin 29 of the side kick lever 20 presses the inclined portion 25 of the trigger lever 24. For this purpose, the trigger lever 24 moves obliquely upward to the right as shown in FIG. 5, whereby the tip side portion of the trigger lever 24 presses the pin 41 on the roller escape lever 39. Accordingly, the roller release lever 39 is driven to rotate clockwise about the fulcrum pin 40.

  As described above, the engagement hole 42 on the distal end side of the roller escape lever 39 receives the pin 51 implanted in the distal end portion of the slide plate 50. Accordingly, the slide plate 50 is pushed downward in FIG. 5 by the clockwise rotation around the fulcrum pin 40 of the roller escape lever 39. Then, the rack 61 provided on the slide plate 50 meshes with the pinion 65 at the end of the gear train 64. Therefore, the slide plate 50 is driven by the motor 62 via the worm wheel 63, the gear train 64, and the pinion 65, and this slide plate 50 is moved downward in FIG.

  The slide plate 50 is formed with a specially shaped opening 60 as shown in an enlarged view in FIG. 6, and is implanted in the control lever 86 by sliding the slide plate 50 downward in FIG. As shown in FIG. 6, the engagement pin 88 moves relatively upward in the odd-shaped opening 60 of the slide plate 50 and is displaced leftward in FIGS. 5 and 6 during this movement. For this purpose, the control lever 86 is rotated clockwise around the fulcrum pin 87 as shown in FIG. An engagement pin 89 provided at the tip of the control lever 86 is engaged with the elongated hole 83 of the retracting lever 78. Accordingly, the clockwise rotation about the fulcrum pin 87 of the control lever 86 causes the retracting lever 78 to rotate clockwise about the fulcrum pin 80 as shown in FIG. The drive wheel 82 that is being pushed in pushes the optical disk 92. At this time, as will be described later, the drive wheel 82 is not actively driven, and the drive wheel 82 retracts the optical disk 92 due to the displacement accompanying the rotation of the pull-in lever 78.

  The pin 88 of the control lever 86 is engaged with the deformed opening 60 of the slide plate 50 and the engagement hole 72 of the switching lever 70. Here, the engagement hole 72 of the switching lever 70 is bent as shown in an enlarged view in FIG. 8, and the control lever 86 rotates clockwise around the fulcrum pin 87 to rotate the retracting lever 78. When moved, the engagement pin 88 moves from the position shown in FIG. 8A to the position shown in FIG. 8B. That is, the engagement pin 88 moves relatively leftward in the engagement hole 72 of the switching lever 70 in FIG. 8, and as a result of such movement operation, as shown in FIGS. 8B and 9, the fulcrum pin It is rotated counterclockwise about 71. As described above, the transmission gear 73 is attached to the tip of the switching lever 70. Therefore, the transmission gear 73 is separated from the intermediate gear in the gear train 64 by the counterclockwise rotation about the fulcrum pin 71 of the switching lever 70. This means that the transmission of the driving force from the motor 62 is interrupted. That is, in conjunction with the turning operation of the control lever 86, the switching lever 70 is turned counterclockwise to interrupt transmission of the driving force. Therefore, after this stage, the drive wheel 82 functions as a simple roller, and the drive wheel 82 functions to transmit the force accompanying the rotational drive of the pull-in lever 78 to the optical disk 92. That is, the optical disk 92 is pushed only by the pressing force of the drive wheel 82.

  As shown in FIG. 9, when the optical disk 92 is drawn onto the turntable 16, the rotational movement of the lateral kick-out lever 20 and the roller release lever 39 stops. However, since the rack 61 of the slide plate 50 is still engaged with the pinion 65 at the end of the gear train 64 at this time, the slide plate 50 is further moved downward. Then, the pin 54 of the transmission lever 53 engaged with the L-shaped hole 52 provided in the slide plate 50 causes the transmission lever 53 to be watched around the fulcrum pin 55 as shown in FIGS. Rotated in the direction. Then, the lift cam 14 is moved rightward by the transmission lever 53 as shown in FIG. Accordingly, the pin 13 of the base unit 11 moves to the left end side of the cam portion 15 of the lift cam 14 shown in FIG. Accordingly, the base unit 11 is lifted on the side of the turntable 16 around the support portion 12, and for this purpose, the optical disk 92 is tightly attached by the press and the turntable 16 provided inside the top plate of the outer casing 95. The chucking ends.

  Even after the chucking operation is performed by the operation of the lift cam 14 as described above, the slide plate 50 is still moved downward as shown in FIG. Therefore, by such movement of the slide plate 50, the control lever 86 is further rotated counterclockwise about the fulcrum pin 87 in order to press the pin 88 at the peripheral edge of the deformed opening 60. Accordingly, in conjunction with the turning movement of the control lever 86, the retracting lever 78 is turned counterclockwise about the fulcrum pin 80. As a result, the drive wheel 82 is separated from the outer periphery of the optical disk 92. Further, as the slide plate 50 moves downward in FIG. 11, the roller escape lever 39 is further rotated clockwise about the fulcrum pin 40, so that the pin 105 on the roller escape lever 39 is a kick lever. The cut-and-raised portion 43 is pushed, and the kick-out lever 43 is rotated counterclockwise around the fulcrum pin 44. Accordingly, the roller 46 on the tip side of the roller release lever 39 is separated from the optical disk 92. Further, since the pin 106 implanted in the roller release lever 39 presses the roller release slider 32 to the left in FIG. 11, the tip side portion of the roller release slider 32 is located on the side kick lever 20. The pin 107 is pressed, whereby the lateral kick lever 20 is rotated counterclockwise about the fulcrum pin 21. Accordingly, the roller 23 on the front end side of the lateral kick-out lever 20 is separated from the outer peripheral portion of the optical disk 92.

  In this manner, the optical disk 92 is completely drawn, and the turntable 16 is rotationally driven in a state where it is separated from the drive wheel 82 and the rollers 46 and 23, whereby a predetermined recording and / or reproducing operation is performed. Done. That is, a signal is written or read by the optical pickup moving in the radial direction with respect to the optical disk 92.

  The ejection operation of the optical disk 92 is basically the reverse of the above operation. In the first step, the lowering operation of the base unit 11 is performed by the movement of the lifting cam 14 in the reverse direction. At this time, the removal pin 102 planted on the chassis 10 abuts on the center side portion of the optical disk 92, thereby pulling the optical disk 92 away from the turntable 16.

  Although the present invention has been described above with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the technical idea of the invention included in the present application.

  The present invention can be widely used in an optical disc player using various optical discs such as a compact disc and a DVD.

It is an external appearance perspective view which shows the insertion operation | movement of the optical disk with respect to an optical disk player. It is a side view of an optical disk player. It is a principal part top view which shows the disk drawing-in apparatus in an optical disk player. It is a principal part top view which shows the operation | movement of a drawing start. It is a top view of the state which pulled in the optical disk almost half. It is an enlarged plan view of the unusually shaped opening of the slide plate. It is a principal part top view of the state which pulled in the optical disk substantially. It is a principal part top view which shows rotation operation | movement of a switching lever. It is a principal part top view in the state where the optical disk was drawn completely. It is a principal part longitudinal cross-sectional view which shows the chuck | zipper up operation | movement by a raising / lowering cam. It is a principal part top view of the optical disk player of the state which completed the chuck | zipper up operation | movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Chassis, 11 ... Base unit, 12 ... Support part, 13 ... Pin, 14 ... Elevating cam, 15 ... Cam part, 16 ... Turntable, 17 ... Anti-slip rubber, 20 ... Side kick lever, 21 ... Supporting point Pins 22, wound springs 23, rollers 24, trigger levers 25, inclined portions 26, long holes 27, pins 28, springs 29, pins 32, roller relief sliders 33, long holes 34 ...... Pin, 35 ... Spring, 39 ... Roller escape lever, 40 ... Follow point pin, 41 ... Pin, 42 ... engagement hole, 43 ... Kicking lever, 44 ... fulcrum pin, 45 ... Wind spring, 46 ... Colo, 50 ... Slide plate 51 ... Pin 52 ... L-shaped hole 53 ... Transmission lever 54 ... Pin 55 ... Pin point pin 56 ... Wind spring 57 ... Pin 60 ... Odd shaped opening 61 ... Rack 62 ... Motor 63 ... Worm wheel, 64 ... Vehicle train, 65 ... pinion, 66 ... optical sensor, 70 ... switching lever, 71 ... fixing pin (fulcrum), 72 ... engagement hole, 73 ... transmission gear, 74 ... pulley, 75 ... belt, 78 ... retraction lever, 79 ... Pulley, 80 ... fulcrum pin, 81 ... gear train, 82 ... drive wheel, 83 ... long hole, 86 ... control lever, 87 ... fulcrum pin, 88, 89 ... engagement pin, 92 ... optical disc, 95 ... outer casing, 96 ... Front panel, 97 ... Insertion port, 98 ... Recess, 102 ... Removal pin, 105, 106, 107 ... Pin

Claims (7)

In a disk retracting apparatus that pulls the disk into an operating position by pressing a rotating body on the outer periphery of the disk,
A retracting lever that rotatably supports the rotating body;
A rotation driving means for transmitting a rotation driving force to the rotating body;
Switching means for switching between transmission and interruption of the rotational driving force to the rotating body;
And when the disk is pulled to a predetermined position by the friction force between the rotary body and the disk, and the switching means when the disk is pulled to a predetermined position. The disk retracting apparatus is characterized in that transmission of a rotational driving force to the rotating body is interrupted to make the rotating body free, and the disk is retracted by movement of the retracting lever.   A slide plate having a rack that meshes with the drive gear is provided, and in conjunction with the sliding of the slide plate, the rotational driving force is interrupted by the switching means and the disk is retracted by the movement of the retract lever. The disk retracting device according to claim 1, wherein:   3. The disc according to claim 2, wherein the pull-in lever rotates through a control lever in conjunction with the sliding of the slide plate, and the disc is pulled in by a rotating body supported by the pull-in lever. Retraction device.   A pin installed in the control lever is pushed by the peripheral edge of the unusually shaped opening of the slide plate, and the control lever rotates, and the rotational movement of the control lever is transmitted to the pull-in lever and the disc 4. The disk retracting apparatus according to claim 3, wherein the retracting operation is performed.   5. The switching device according to claim 4, wherein the switching means is constituted by a switching lever, and rotates in conjunction with the sliding of the slide plate to cut off transmission of driving force to the rotating body on the pull-in lever. Disk retractor.   The pin installed in the control lever is pushed by the peripheral edge of the unusually shaped opening of the slide plate and engages with the engagement hole of the switching lever. When the control lever rotates, the switching lever is interlocked. The disk retracting device according to claim 5, wherein the disk retracting device is rotated. 2. The disk retracting apparatus according to claim 1, wherein the one end of the disk is pulled by the rotating body in a state where the other end of the disk is pressed against the anti-slip member.

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