JP4150687B2 - Disc loading device - Google Patents

Description

  The present invention relates to a disk loading apparatus.

  2. Description of the Related Art Conventionally, for example, in a disk reproducing device and a disk reading device, a disk loading device for fixing a disk at a predetermined position after the disk is automatically pulled into a predetermined position or a writable position by inserting the disk into an insertion slot. Is provided.

  FIG. 6 shows a disc reproducing device 60 equipped with a conventional disc loading device. In the following, the disc insertion port side is the front surface, and when the disc is inserted horizontally, the disc reading surface side is shown. This will be described as the lower surface.

  The disk reproducing device 60 includes a roller 61 that rotates in contact with the surface of the disk to draw the disk above a turntable (not shown) or eject the disk from above the turntable. A roller gear 63 for rotating the roller 61 is attached to the shaft 62 of the roller 61, and power from a motor (not shown) is transmitted to the roller gear 63 via a two-stage gear 64, a transmission gear 65, and the like. It has become.

  Behind the roller 61, a clamper arm 67 that supports a clamper 66 that presses the disc against the turntable can swing up and down by moving a leaf spring 68 attached to one side thereof up and down. When the clamper arm 67 swings downward, the disc is pressed by the clamper 66 and the disc is fixed (chucked) at a predetermined position.

  When the disk is chucked, the rotation of the roller 61 is stopped and the roller 61 is retracted from the surface of the disk by releasing the meshing of the transmission gear 65 with the roller gear 63 after the drawing of the disk is completed. .

  In the conventional disk reproducing device 60, in conjunction with the disk being pulled into a predetermined position, the meshing release operation of the transmission gear 65 to the roller gear 63, the retraction of the roller 61, and the disk clamping operation by the clamper 66 are performed. In order to perform this, a moving member 69 is provided that moves in the front-rear direction when the disc pull-in ends.

  At the front part of the moving member 69, an arm guide groove 71 that guides the transmission release arm 70 in the vertical direction for releasing the engagement of the transmission gear 65 with the roller gear 63 by moving the moving member 69 in the front-rear direction. A roller guide groove 72 that guides the roller 61 in the vertical direction is formed, and a leaf spring guide groove 73 that guides the plate spring 68 in the vertical direction is formed in the rear part of the moving member 69.

  The transmission release arm 70 is formed with an arm guide pin 74 that engages with the arm guide groove 71 and is guided to the arm guide groove 71, and the support plate 75 that supports the shaft 62 of the roller 61 includes A roller guide pin 76 that engages with the roller guide groove 72 and is guided by the roller guide groove 72 is provided. A leaf spring guide pin 77 that engages with the leaf spring guide groove 73 and is guided by the leaf spring guide groove 73 is provided at one end of the leaf spring 68.

  In the above-described conventional disk reproducing device 60, the arm guide pin 74 is moved as shown in FIG. 7 by the movement of the moving member 69 triggered by the disk being pulled into a predetermined position above the turntable. It moves upward along the arm guide groove 71, and accordingly, the transmission gear 65 moves upward, the meshing with the roller gear 63 is released, and the rotation of the roller 61 stops. Further, the roller guide pin 76 moves downward along the roller guide groove 72, and accordingly, the roller 61 is retracted from the surface of the disk. At the same time, the leaf spring 68 pin moves downward along the leaf spring guide groove 73, and accordingly, the clamper arm 67 provided with the leaf spring 68 swings downward, and the disc is clamped by the clamper 66. .

  As described above, in the conventional disc reproducing apparatus 60, after the disc is pulled into the predetermined position, the arm guide pin 74 moves upward along the arm guide groove 71 as the moving member 69 moves. Even though the disk is positioned at a predetermined position, the roller 61 continues to rotate, so that the roller comes into sliding contact with the surface of the disk, which may damage the surface of the disk.

  Further, since the meshing release of the transmission gear 65 to the roller gear 63, the disc clamping operation, and the retraction of the roller 61 are performed simultaneously by moving the moving member 69, the load when the moving member 69 moves is high. These series of chucking operations require a large amount of power.

  Therefore, as a disc reproducing apparatus that does not have such an inconvenience, with respect to the transport mechanism that transports the disc without being interlocked with the movement of the moving member when the disc is inserted into a predetermined position, and the transport mechanism 2. Description of the Related Art A disk reproducing device that releases a connection with a power transmission mechanism that transmits power is known (for example, see Patent Document 1).

  As shown in FIG. 8, the power transmission mechanism according to this disk reproducing apparatus has a motor 80, and an output gear 81 of the motor 80 is meshed with a large-diameter gear of a two-stage gear 82. The small gear of the two-stage gear 82 is meshed with the large gear of the sun gear 83, and the small gear of the sun gear 83 is meshed with the planetary gear 85 held by the carrier member 84. The chassis (not shown) is provided with a semicircular internal gear 86 for revolving the planetary gear 85.

  The peripheral surface of the carrier member 84 is provided with a locking piece 87 that locks a slide member (not shown) that slides when the disk is pulled to a predetermined position. The carrier member 84 is rotated to form a tooth portion 88 that can mesh with a gear described later.

  Further, between the sun gear 83 and the carrier member 84, a support member 90 that supports a transmission gear 89 that transmits power from the motor 80 to the transport mechanism can rotate coaxially with the sun gear 83 and the carrier member 84. It is arranged. The support member 90 includes a circular portion 91 and a rectangular portion 92 protruding from the circumferential surface of the circular portion 91. A tooth portion 93 is formed in the circular portion 91, and a gear 94 that is rotatably disposed on the chassis is meshed with the tooth portion 93. Further, a transmission gear 89 is rotatably supported by the square portion 92, and this transmission gear 89 is meshed with a large-diameter gear of the sun gear 83.

  The support member 90 is disposed so that the transmission gear 89 is connected to the transport mechanism when the disk is not inserted into a predetermined position and the slide member is not slid. Further, in the above-described state, the carrier member 84 is in a state where the tooth portion 88 of the carrier member 84 is not meshed with the gear 94 and the planetary gear 85 is in the vicinity of the internal gear 86 and is not meshed. It is arranged.

  In such a disc reproducing apparatus, when the disc is inserted and the motor 80 is driven, the power of the motor 80 is transmitted to the transmission gear 89 via the output gear 81, the two-stage gear 82, and the sun gear 83. The transport mechanism connected to the drive is driven, and the disk is pulled toward a predetermined position.

When the disk reaches a predetermined position, the carrier member 84 is rotated by sliding in a state where the slide member is locked to the locking piece 87 of the carrier member 84 in conjunction with this. As a result, the planetary gear 85 meshes with the internal gear 86 and revolves along the internal gear 86. Along with this, the carrier member 84 rotates, and the tooth portion 88 formed on the carrier member 84 meshes with the gear 94. Further, when the planetary gear 85 revolves and the carrier member 84 rotates, the gear 94 rotates, and the support member 90 in which the tooth portion 93 is engaged with the gear 94 rotates. Along with this, the transmission gear 89 moves, the connection with the transport mechanism is released, and the rotation of the rollers (not shown) constituting the transport mechanism stops.
JP 2002-288911 A

  However, in the disk reproducing apparatus that rotates the support member that supports the transmission gear as the carrier member is rotated by the revolution of the planetary gear described above to release the connection between the transmission gear and the transport mechanism, the support member is There is a problem that the number of parts must be increased and the configuration becomes complicated.

  Accordingly, an object of the present invention is to provide a disk reproducing apparatus that can prevent the surface of the disk from being damaged by unnecessary rotation of a roller with a simple configuration.

In order to solve the above problems, a disk loading apparatus according to the present invention is a disk loading apparatus having a transport mechanism for transporting a disk, and a carrier member for holding a gear for transmitting power to the transport mechanism is movably disposed. The movement of the carrier member is restricted so that the gear continues to rotate while receiving a reaction force in the direction opposite to the rotation direction at the power transmission position , and the restriction is released in conjunction with the insertion of the disk into the predetermined position. By providing a regulating member that enables the gear to move to a position where power cannot be transmitted by the reaction force ,
Further, a clamper contact / separation mechanism for moving the clamper that presses the disk to and away from the disk is provided, the gear is a planetary gear, and the planetary gear moved to a power transmission impossible position after the restriction by the restriction member is released. An internal gear that engages and revolves the gear is disposed, a moving member that moves in conjunction with the movement of the carrier member due to the revolution of the planetary gear is provided, and the clamper contacting / separating mechanism is operated by the moving member A guide groove is formed .

  According to the present invention, when the restriction on the movement of the carrier member by the restriction member is released, the gear moves from the power transmission position by the reaction force of the power transmission, so that the regulation is performed in conjunction with the pulling of the disk into the predetermined position. Since the connection of the gear to the transport mechanism is released simply by moving the member, the rotation of the roller can be stopped immediately after the disk reaches the predetermined position with a simple configuration. It is possible to prevent the disc surface from being damaged by unnecessary rotation.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5.

  FIG. 1 shows an embodiment of a disk reproducing apparatus 1 to which a disk loading apparatus according to the present invention is applied. In the following, when a disk is inserted in the front direction and the disk is inserted in the horizontal direction, The description will be made assuming that the reading surface side of the disk is the lower surface.

  As shown in FIG. 1, the disc reproducing apparatus 1 has a chassis 2 on which a turntable for rotating the disc and a pickup unit (none of which is shown) for reading pits formed on the disc are mounted.

  A clamper arm 4 that supports a clamper 3 that presses the disk against the turntable is provided at the rear part of the chassis 2 so as to be swingable with an end on the side facing the clamper support side as a support shaft. A plate spring 5 is provided at the side end of the arm 4 to urge the clamper arm 4 downward when the disc is clamped and upward when the clamp is released. A clamper contact / separation mechanism is configured by the clamper arm 4 and the leaf spring 5.

  A first moving member 6 and a second moving member 7 that are movable along the side portions of the chassis 2 are disposed on the upper surfaces of both side portions of the chassis 2 with their front end portions connected by connecting members 8. The connecting member 8 is provided on a support shaft 9 protruding from the upper surface of the front portion of the chassis 2 so as to be swingable about the support shaft 9, thereby the first moving member 6 and the second moving member 7. Are designed to move relatively. A plate-like slide member 10 that slides along the first moving member 6 in conjunction with the drawing of the disk into a predetermined position is attached to the first moving member 6.

  As shown in FIG. 2, a protrusion 11 that protrudes toward the clamper arm 4 is formed at the rear end of the slide member 10. In addition, a rectangular parallelepiped regulating member 12 is provided at an intermediate portion of the slide member 10 so as to protrude toward the clamper arm 4, and the regulating member 12 moves a carrier member 39 to be described later on the distal end surface. It comes to regulate.

  In addition, a guide piece 13 for guiding the sliding operation is formed at the front end portion of the slide member 10, and a guide groove 14 is formed on the surface of the slide member 10 that is in sliding contact with the first moving member 6. Has been.

  At a position corresponding to the guide groove 14 of the first moving member 6, a guide piece 15 that engages with the guide groove 14 and guides the slide member 10 is projected, and the guide piece 13 of the first moving member 6 is projected. A guide groove 16 for engaging the guide piece 13 to guide the slide member 10 is formed at a position corresponding to.

  The first moving member 6 and the slide member 10 are respectively provided with locking pieces 18 and 19 for locking the coil spring 17, and the coil spring 17 locked to the locking pieces 18 and 19 slides. The member 10 is held in a state of being biased rearward.

  In addition, a pin locking portion 20 that locks a pin 42 provided on a carrier member 39 (described later) from the rear is provided below the first moving member 6.

  Further, a guide groove (not shown) for guiding the leaf spring 5 in the vertical direction is formed in the rear portion of the first moving member 6 in accordance with the moving operation of the first moving member 6. Further, an inclined wall (not shown) is formed at the front portion of the first moving member 6 to guide a shaft 29 of a roller 28 (described later) in the vertical direction as the first moving member 6 moves.

  A support shaft 21 protrudes from the upper surface of the clamper arm 4 and in the vicinity of the leaf spring 5, and a plate-like trigger arm 22 that gives the slide member 10 an operation trigger is provided on the support shaft 21. The support shaft 21 is pivotally attached to the center.

  At one end portion of the trigger arm 22, an arm portion 23 is formed that slides on the slide member 10 by pressing the projection portion 11 forward when the trigger arm 22 swings and is locked to the projection portion 11 of the slide member 10. ing. Further, on the opposite side of the arm portion 23 in the trigger arm 22, a peripheral portion of the disc is abutted with the insertion of the 12 cm disc, and the abutting portion 24 swings the arm portion 23, and an 8 cm disc is provided. A claw-like protrusion 25 that swings the arm 23 by engaging the peripheral edge of the disk with the insertion is formed.

  A 12 cm disc positioning boss 26 and an 8 cm disc positioning boss 27 for positioning a 12 cm disc and an 8 cm disc at a predetermined position above the turntable are projected from the back surface of the clamper arm 4. .

  At the front part of the chassis 2, a roller 28 that contacts the surface of the disk and conveys the disk by rotational force is provided with a shaft 29 constituting the roller 28 supported by the front end portions of the moving members 6 and 7. Yes.

  A gear train 30 is connected to one end of the shaft 29, and the roller 28 and the gear train 30 constitute a transport mechanism for transporting the disk. And the power transmission mechanism 31 which transmits motive power with respect to this conveyance mechanism is connected to the conveyance mechanism.

  A slider (not shown) that slides by inserting a disk is provided on the front side of the roller 28 in the chassis 2, and is transmitted to the transport mechanism at a position that can be pushed when the slider slides to a predetermined position. A start switch (not shown) for starting the operation of the motor 34 for generating the motive power is provided.

  A stop switch 32 for stopping the operation of the motor 34 is disposed on the upper surface of the front portion of the chassis 2, and the connecting member 8 has the above-described movement end position of the moving members 6 and 7 when the disk is retracted. A pushing portion 33 is provided that pushes the stop switch 32 to stop the operation of the motor 34.

  As shown in FIG. 3, the power transmission mechanism 31 has a motor 34, and a large-diameter gear of a first two-stage gear 36 is meshed with an output gear 35 of the motor 34. The large diameter gear of the second second gear 37 is meshed with the small diameter gear of the step gear 36. The small diameter gear of the second second gear 37 is meshed with the large diameter gear of the sun gear 38, and the planetary gear 40 held by the carrier member 39 is meshed with the small diameter gear of the sun gear 38. . An arcuate internal gear 41 that meshes and revolves the planetary gear 40 is disposed in the vicinity of the power transmission position where the planetary gear 40 of the chassis 2 can transmit power to the transport mechanism.

  As shown in FIG. 4, the carrier member 39 is a disk-like member having a diameter substantially the same as the large diameter of the sun gear 38, and a part of the peripheral surface protruding and formed on one surface of the protruding portion. Is provided with a pin 42 that is regulated by the front end surface of the regulating member 12 provided on the slide member 10.

  On the same surface as the projecting surface of the pin 42, a notch 43 is formed in which the planetary gear 40 is recessed, and a shaft 44 for rotatably holding the planetary gear 40 is provided in the notch 43. Yes. In addition, an indentation hole into which the small diameter gear of the sun gear 38 is indented is formed at the center of the carrier member 39. On the surface of the carrier member 39 that faces the sun gear 38, a notch 45 that allows the large diameter portion to be indented between the sun gear 38 and the small gear of the second two-stage gear 37 is engaged with the sun gear 38. Is formed.

  Further, a locking portion 47 that can lock a substantially L-shaped locking arm 46 that is swingably disposed on the chassis 2 is formed on a part of the peripheral surface of the carrier member 39.

  The carrier member 39 is configured such that the pin 42 is the regulating member in a state where the arm portion 23 of the trigger arm 22 does not press the protruding portion 11 of the slide member 10 and the slide member 10 is urged rearward by the coil spring 17. 12 is arranged at a position to be regulated by the front end surface. In this state, the planetary gear 40 is located at the power transmission position and is disposed so as not to mesh with the internal gear 41. A locking arm 46 is locked to the locking portion 47 of the carrier member 39, and the carrier member 39 is locked to the locking arm 46 and one end to the locking arm 46, and the other end is provided to the chassis 2. The torsion spring 49 locked to the protruding portion 46 is biased in the direction opposite to the moving direction when the disk is retracted (see FIGS. 1, 3, and 5).

  As shown in FIGS. 3 and 1, the gear train 30 of the transport mechanism has a transmission gear 50 composed of a helical gear and a parallel gear, and the parallel gear of the transmission gear 50 is the power of the planetary gear 40. While being engaged with the planetary gear 40 at the transmission position, the helical gear is engaged with one of the worm gears 51 attached to both ends of the shaft. A helical gear of a two-stage gear 52 made up of a helical gear and a parallel gear is meshed with the other worm gear 51, and an intermediate gear 53 is meshed with the parallel gear of the two-stage gear 52. . The intermediate gear 53 meshes with a roller gear 54 attached to the shaft 29 of the roller 28.

  Next, the operation of this embodiment will be described.

  In the state where the disk is not inserted, as shown in FIG. 5A, the planetary gear 40 is in the power transmission position and meshes with the transmission gear 50 and is not meshed with the internal gear 41. . The slide member 10 is positioned rearward by the bias of the coil spring 17, and the pin 42 of the carrier member 39 is regulated by the front end surface of the regulation member 12 provided on the slide member 10. A locking arm 46 is locked to the locking portion 47 of the carrier member 39.

  When the disc is inserted into the insertion slot, the slider slides and the start switch of the motor 34 is pushed by the slider. As a result, the motor 34 is driven, and the power is transmitted to the sun gear 38 and the planetary gear 40 via the output gear 35, the first second gear 36 and the second second gear 37, and further, the rotation of the planetary gear 40 is rotated. Is transmitted to the transmission gear 50. Then, the power from the motor 34 is transmitted to the roller gear 54 through the worm gear 51, the two-stage gear 52, and the intermediate gear 53 by the transmission gear 50, and the roller gear 54 rotates. As a result, the roller 28 is driven to rotate, and the disk is pulled toward a predetermined position.

  At this time, since the roller 28 rotates while being in contact with the surface of the disk, a large load for rotating the roller 28 is applied to the transmission gear 50, and the planetary gear 40 is loaded to the transmission gear 50. Thus, a reaction force is received at the contact point with the transmission gear 50 in the direction opposite to the rotation direction. For this reason, the planetary gear 40 tries to move in the reaction force direction, but the carrier member 39 holding the planetary gear 40 is restricted in movement operation by the tip surface of the regulating member 12 via the pin 42. Therefore, the planetary gear 40 remains in the power transmission position and continues to rotate (see FIG. 5A). Therefore, the power from the motor 34 is transmitted from the planetary gear 40 via the transmission gear 50 and the like, the roller 28 continues to rotate, and the disk is further drawn.

  When the disk is pulled in and abuts against the abutting portion 24 of the trigger arm 22 or is locked to the protrusion 25, the trigger arm is moved along with the disc insertion operation as shown in FIG. 22 swings about the support shaft 21, and the arm portion 23 of the trigger arm 22 swings accordingly, whereby the protruding portion 11 of the slide member 10 locked to the arm portion 23 is pressed forward. . Then, the slide member 10 is guided by the guide grooves 14 and 16 and the guide pieces 13 and 15 against the urging force of the coil spring 17 and slides along the first moving member 6. Then, the restriction member 12 provided at 10 slides and the restriction on the pin 42 of the carrier member 39 is released.

  At this time, the planetary gear 40 is about to move due to the reaction force, and when the restriction on the carrier member 39 holding the planetary gear 40 is released, the carrier member 39 can be moved. As shown, it moves in the reaction force direction from the power transmission position and disengages from the transmission gear 50. As a result, the power from the motor 34 is not transmitted to the transmission gear 50, and the rotation of the roller 28 is stopped.

  At substantially the same time, the disk reaches a predetermined position above the turntable and is locked to the positioning bosses 26 and 27.

  As shown in FIG. 5D, the planetary gear 40 moved from the power transmission position meshes with the internal gear 41 and revolves along the internal gear 41 as the sun gear 38 rotates. The carrier member 39 moves in accordance with the revolution of the planetary gear 40 and the pin 42 of the carrier member 39 pushes the side surface of the regulating member 12 provided on the slide member 10, so that the slide member 10 further slides. Then, the first moving member 6 moves following the slide member 10 by the urging force of the coil spring 17. At this time, the protruding portion 11 of the slide member 10 is released from being locked by the arm portion 23 of the arm portion 23 material. The first moving member 6 is provided with an abutting portion with which the front end of the slide member 10 abuts, and the first moving member 6 moves when the slide member 10 abuts against the abutting portion and slides. You may make it do.

  When the first moving member 6 moves, the leaf spring 5 moves downward along the guide groove formed in the first moving member 6 along with this moving operation, and the shaft 29 of the roller 28 moves to the first moving member. It moves downward along the inclined wall formed in 6. As the leaf spring 5 moves downward, the clamper arm 4 to which the leaf spring 5 is attached moves downward, the biasing force of the leaf spring 5 pushes the clamper arm 4 downward, and the clamper 3 turns the disc. Press against the table. Further, as the shaft 29 of the roller 28 moves downward, the roller 28 moves downward and retracts from the surface of the disk.

  Thus, using the reaction force of the power transmission to the transmission gear 50, the meshing of the planetary gear 40 with the transmission gear 50 is released, and the planetary gear 40 meshes with the internal gear 41 and revolves, Thus, as the first moving member 6 moves, the above-described series of chucking operations are performed, so that the transition from the disk pull-in operation to the chucking operation is facilitated.

  As the first moving member 6 moves, the connecting member 8 swings about the support shaft 9, and when the first moving member 6 reaches the movement end position, the pushing portion provided in the connecting member 8. 33 pushes the stop switch 32 of the motor 34, and the drive of the motor 34 stops.

  In this state, since the slide member 10 is urged rearward by the coil spring 17, the pin 42 of the carrier member 39 is pushed rearward by the restriction member 12 provided on the slide member 10. However, the carrier member 39 and the planetary gear 40 remain in place because they are locked from behind by the pin locking portion 20 of the first moving member 6.

  Thereafter, the turntable rotates and a reading operation is performed by a pickup, and the sound recorded on the disk is reproduced.

  When the disc is taken out, a disc ejection signal is input by a user's operation or the like, and the motor 34 is controlled based on this signal and is driven to rotate in the direction opposite to that when the disc is retracted. Then, the power by the drive of the motor 34 is transmitted to the sun gear 38 and the planetary gear 40 via the output gear 35, the first second gear 36 and the second second gear 37, and the planetary gear 40 moves along the internal gear 41. Revolves in the opposite direction from when the disc is inserted As the planetary gear 40 revolves, the carrier member 39 moves rearward, so that the pin 42 provided on the carrier member 39 pushes the pin locking portion 20 of the first moving member 6 rearward, and the first The moving member 6 moves backward. At this time, the slide member 10 moves rearward together with the first moving member 6 by the biasing force of the coil spring 17.

  As the first moving member 6 moves rearward, the leaf spring 5 moves upward along the guide groove, and the shaft 29 of the roller 28 moves upward along the inclined wall. As the leaf spring 5 moves upward, the clamper arm 4 to which the leaf spring 5 is attached moves upward, and as the shaft 29 of the roller 28 moves upward, the roller 28 moves upward. Touch the surface of the disc.

  When the planetary gear 40 moves to the end of the internal gear 41 due to revolution, the locking portion 47 of the carrier member 39 is locked to the locking arm 46, the carrier member 39 is positioned at the power transmission position, and the planetary gear is set. 40 is disengaged from the internal gear 41 and is engaged with the transmission gear 50. At this time, the pin 42 of the carrier member 39 is disengaged from the side surface of the regulating member 12 provided on the slide member 10 and reaches a position where it can be regulated by the front end surface of the regulating member 12 at the power transmission position. Further, the protruding portion 11 of the slide member 10 is engaged with the arm portion 23 of the arm portion 23 material.

  When the planetary gear 40 meshes with the transmission gear 50, the power of the motor 34 is transmitted to the transmission gear 50 by the rotation of the planetary gear 40, and the transmission gear 50 causes the roller gear to pass through the worm gear 51, the two-stage gear 52, and the intermediate gear 53. The power from the motor 34 is transmitted to the roller 54 and the roller gear 54 rotates. As a result, the roller 28 is driven to rotate in the direction opposite to that when the disc is inserted, and the disc is ejected.

  At this time, since the locking portion 47 is locked by the locking arm 46, the carrier member 39 is prevented from rattling due to fluctuations in the load of the disk ejection operation. Further, the carrier member 39 is biased by the locking arm 46 and the torsion spring 49 in the direction opposite to the moving direction when the disk is inserted, that is, in the direction opposite to the direction in which the planetary gear 40 moves to the internal gear 41 side. Therefore, the planetary gear 40 meshes with the internal gear 41 due to external vibration or the like, and when the disk is inserted and the motor 34 is driven next, the planet is inserted before the disk is inserted into a predetermined position. The clamp arm is prevented from moving downward as the gear 40 revolves and the first moving member 6 moves. Since the carrier member 39 is urged by the locking arm 46 and the torsion spring 49 in the direction opposite to the moving direction when the disc is inserted, if the urging force of the torsion spring 49 is adjusted, It is also possible to adjust the transition timing from the insertion operation to the clamping operation.

  As described above, according to the present embodiment, when the restriction on the movement of the carrier member 39 by the restriction member 12 is released, the planetary gear 40 moves from the power transmission position by the reaction force of the power transmission to the transmission gear 50. Since the engagement of the planetary gear 40 with the transmission gear 50 is released only by moving the restricting member 12 in conjunction with the pulling of the disk into the predetermined position, the disk reaches the predetermined position with a simple configuration. The rotation of the roller 28 can be stopped immediately, and as a result, the surface of the disk can be prevented from being damaged by the unnecessary rotation of the roller 28.

It is a top view which shows the structure of one Embodiment of the disc reproducing | regenerating apparatus by this invention. It is a perspective view which shows the structure of the moving member and slide member which comprise the disc reproducing | regenerating apparatus by this embodiment. It is a top view which shows the structure of the power transmission mechanism which comprises the disc reproducing | regenerating apparatus by this embodiment. (A) It is the disassembled perspective view seen from the upper direction of the planetary gear mechanism which comprises the disc reproducing | regenerating apparatus by this embodiment, (B) was seen from the downward direction of the planetary gear mechanism which comprises the disc reproducing | regenerating apparatus by this embodiment. It is a disassembled perspective view. It is explanatory drawing explaining operation | movement of the planetary gear mechanism which comprises the disc reproducing | regenerating apparatus by this embodiment. It is a disassembled perspective view which shows the structure of the conventional disc reproducing | regenerating apparatus. It is explanatory drawing explaining the meshing release operation | movement of the transmission gearwheel and roller gear in the conventional disc reproducing | regenerating apparatus. It is a top view which shows the power transmission mechanism which comprises the other conventional disc reproducing | regenerating apparatus.

Explanation of symbols

1 Disc player 3 Clamper 4 Clamper arm 6 First moving member (moving member)
DESCRIPTION OF SYMBOLS 10 Slide member 12 Restriction member 22 Trigger arm 23 Arm part 28 Roller 29 Shaft 30 Gear train 31 Power transmission mechanism 34 Motor 38 Sun gear 39 Carrier member 40 Planetary gear 41 Internal gear 42 Pin 50 Transmission gear 54 Roller gear

Claims (1)

In a disk loading device including a transport mechanism for transporting a disk, a carrier member that holds a gear that transmits power to the transport mechanism is movably disposed, and the gear is in a power transmission position in a direction opposite to the rotation direction. The movement of the carrier member is restricted so as to continue to rotate while receiving a reaction force, and the restriction is released in conjunction with the insertion of the disc into a predetermined position, whereby the gear is brought into a position where power cannot be transmitted by the reaction force. Provide a restriction member that can move ,
Further, a clamper contact / separation mechanism for moving the clamper that presses the disk to and away from the disk is provided, the gear is a planetary gear, and the planetary gear moved to a power transmission impossible position after the restriction by the restriction member is released. An internal gear that engages and revolves the gear is disposed, a moving member that moves in conjunction with the movement of the carrier member due to the revolution of the planetary gear is provided, and the clamper contacting / separating mechanism is operated by the moving member A disk loading device characterized in that a guide groove is formed .

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