JP2010020869A - Disk drive and electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk drive wherein a mechanism is simplified and an operation time is shortened. <P>SOLUTION: The disk drive includes a base chassis 6 fixed to a predetermined position, a tray 7 movable in a drawing direction and a housing direction with respect to the base chassis and moved between a drawing position and a housing position, guides 11, 11 attached to the base chassis, rails 22, 22 disposed in the tray and guided by the guides during movement of the tray in the drawing direction and the housing direction, a tray movement motor 20 disposed in the tray, a pinion gear 21a rotated by a driving force of the tray movement motor, a rack body 40 attached to the base chassis to engage the pinion gear, a locking part 12 for locking the tray in the housing position, and a locked part 23 disposed in the tray and moved accompanying the movement of the tray in the housing direction by the driving force of the tray movement motor to be engaged with the locking part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to the technical field of disk drive devices and electronic equipment. More specifically, the present invention relates to a technical field in which the mechanism is simplified and the operation time is shortened by locking the tray to the storage position as the tray moves in the storage direction by the driving force of the tray moving motor.

  There is a disk drive device that records and / or reproduces information signals on / from a disk-shaped recording medium.

  In such a disk drive device, a so-called slot-in type in which a disk-shaped recording medium is inserted and loaded from a disk insertion opening formed in the front panel, and a tray from which the tray is pulled out and the disk-shaped recording medium is pulled out. There is a so-called tray drawer type in which the tray is stored and loaded.

  There is a tray drawer type disk drive device that pulls out and stores a tray by a driving force of a tray driving motor (see, for example, Patent Document 1).

  In the conventional disk drive device described in Patent Document 1, a rack that extends in the pull-out direction of the tray is provided on one side of the chassis in which the tray is movably supported. A pinion gear that is rotated by the driving force of the tray driving motor attached to the (rear end) is meshed with the rack.

  The tray pulling operation is performed by rotating the pinion gear by the driving force of the tray driving motor, the pinion gear rolling on the rack, and the tray moving in the pulling direction with respect to the chassis as the pinion gear rotates. .

  In addition, the tray storing operation is performed by rotating the pinion gear in a direction opposite to that during the pulling operation by the driving force of the tray driving motor, and the pinion gear rolls on the rack, and the tray moves with respect to the chassis as the pinion gear rotates. This is done by moving in the storage direction.

  On the other hand, in the disk drive device, it is necessary to lock the tray at the storage position so as not to hinder the recording and reproducing operation of the information signal with respect to the disk-shaped recording medium. In addition, it is possible to prevent dust from adhering to the disk drive device by locking the tray at the storage position.

  Therefore, the disk drive device is provided with a lock mechanism for locking the tray at the storage position.

JP-A-6-68571

  However, in the disk drive device as described above, when the operation of the locking mechanism for locking the tray and the operation of the moving mechanism for moving the tray with respect to the base chassis are performed separately, for example, the operation of the tray by the moving mechanism is performed. Subsequently, the operation by the lock mechanism is performed, and the mechanism cannot be simplified and the operation time cannot be shortened.

  Accordingly, it is an object of the present invention to overcome the above-described problems and to simplify the mechanism and shorten the operation time.

  In order to solve the above-described problems, the disk drive device is configured so that a disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, and a radial direction of the disk-shaped recording medium mounted on the disk table. A disk drive unit having an optical pickup to be moved and a pickup base for supporting the optical pickup in a radial direction of the disk-shaped recording medium; a base chassis fixed at a predetermined position; and Provided in the tray, a tray that is movable in a drawing direction that is drawn out and a storage direction that is opposite to the drawing direction and is moved from a drawing position to a storage position, a guide attached to the base chassis, and the tray When the tray is moved in the pull-out direction and the storage direction. A rail guided by the guide, a tray moving motor disposed on the tray, a pinion gear rotated by a driving force of the tray moving motor, and a rack body attached to the base chassis and meshed with the pinion gear And a lock portion that locks the tray in the storage position, and is moved along with the movement of the tray in the storage direction by the driving force of the tray moving motor and is moved to the lock portion. And a locked portion to be engaged.

  Therefore, in the disk drive device, the tray is locked at the storage position as the tray moves in the storage direction.

  In the disk drive device described above, the lock portion is provided in the guide, and an engagement recess is formed in the lock portion, and the elastically deformable locked piece that is engaged with the lock portion as the locked portion. A locked spring having an elastic force, and when the tray is moved toward the storage position, the locked piece is slidably contacted with the lock portion and elastically deformed, and when the tray is moved to the storage position, It is desirable that the lock piece be elastically restored and engage the engagement recess to lock the tray.

  A locked spring is provided as a locked portion, and the locked piece of the locked spring is elastically deformed to engage the engaging recess of the locking portion so that the tray is locked. Accordingly, the locked piece is elastically deformed.

  In the disk drive device described above, the base chassis rotatably supports a rotation lever for moving the tray from the storage position toward the pull-out position, and the tray is operated by the rotation lever. An action part to which a pressing force in the pull-out direction is applied is provided, and when the tray is in the storage position, the pressing force is applied to the action part by a user turning the turning lever in a predetermined direction. It is desirable to make it possible to move the tray in the pull-out direction.

  By rotating the rotation lever to apply a pressing force to the action portion and moving the tray in the pulling direction, the lock on the tray at the storage position is released with the rotation of the rotation lever. .

  In the disk drive device described above, a lock lever having a locking projection as the lock portion and rotatably supported by the base chassis is provided, and the locked portion is provided on the tray, and the lock A spring member that biases the lever in one direction in the rotation direction is provided, and when the tray is moved toward the storage position, the locked portion is slidably contacted with the lock lever, and the lock lever is moved to the spring. The lock lever is rotated in the one direction by the biasing force of the spring member when the tray is moved to the storage position when the tray is moved to the storage position against the biasing force of the member. It is desirable that the stopping projection is engaged with the locked portion so that the tray is locked.

  The lock lever is rotated by the urging force of the spring member, and the locking projection is engaged with the locked portion so that the tray is locked, thereby locking the tray as it moves toward the storage position. The tray is locked in the storage position by the rotation of the lever.

  In the above disk drive device, the rack body is fixed to the base chassis, the main rack, the first auxiliary rack supported by the main rack so as to be movable in the pull-out direction and the storage direction, and the main rack. A second auxiliary rack that is supported on the rack so as to be movable in the pull-out direction and the storage direction, the second auxiliary rack is provided with a pressing portion, the lock lever is provided with a pressed portion, and the storage The second auxiliary rack that meshes with the pinion gear by the driving force of the tray driving motor in the position is moved in the storage direction with respect to the main rack, and the pressed portion is pressed by the pressing portion of the second auxiliary rack. It is desired that the lock lever is rotated in the other direction so that the tray is unlocked by the lock lever. There.

  The pressed portion of the second auxiliary rack is pressed by the pressing portion, and the lock lever is rotated so that the tray is unlocked. This is done by driving force.

  In the disk drive device described above, the first auxiliary rack is urged in the pull-out direction, and the first auxiliary rack is pressed against the tray at the storage position to move the tray in the pull-out direction. When the tray is in the storage position, the second auxiliary rack is moved by the first auxiliary rack when the user moves the first auxiliary rack in the storage direction. It is desirable that the rack is pressed in the storage direction to unlock the tray by the lock lever, and the tray can be moved in the pull-out direction by the urging force of the urging spring.

  The tray is unlocked by pressing the second auxiliary rack in the storage direction, and the tray is moved in the pull-out direction by the biasing force of the biasing spring. Moved in the pull-out direction.

  In order to solve the above-described problems, an electronic apparatus includes a disk drive device that records and / or reproduces information signals on / from a disk-shaped recording medium, and a device main body in which the disk drive device is disposed. The disk drive device includes: a disk table on which a disk-shaped recording medium is mounted; a spindle motor that rotates the disk table; an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table; A disk drive unit having a pickup base that supports an optical pickup so as to be movable in a radial direction of the disk-shaped recording medium, a base chassis fixed at a predetermined position, a pull-out direction with respect to the base chassis, and the It is possible to move in the storage direction that is opposite to the pull-out direction. A tray that is moved from a storage position to a storage position, a guide attached to the base chassis, and a rail that is provided on the tray and is guided by the guide when the tray moves in the pull-out direction and the storage direction. A tray moving motor disposed on the tray, a pinion gear rotated by a driving force of the tray moving motor, a rack body attached to the base chassis and meshed with the pinion gear, and the tray being stored A locking portion that locks in position, and a locked portion that is provided on the tray and that is moved along with the movement of the tray toward the storing direction by the driving force of the tray moving motor and is engaged with the locking portion Are provided.

  Therefore, in the electronic device, the tray is locked at the storage position as the tray moves in the storage direction.

  The disk drive device according to the present invention includes a disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and A disk drive unit having a pickup base that supports an optical pickup so as to be movable in a radial direction of the disk-shaped recording medium, a base chassis fixed at a predetermined position, a pull-out direction with respect to the base chassis, and the A tray that is movable in a storage direction that is opposite to the pull-out direction and is moved from a pull-out position to a storage position, a guide attached to the base chassis, and the pull-out direction of the tray provided on the tray And a guide guided by the guide when moving in the storage direction. A tray moving motor disposed on the tray, a pinion gear rotated by a driving force of the tray moving motor, a rack body attached to the base chassis and meshed with the pinion gear, and the tray A lock portion that locks in the storage position; and a locked portion that is provided on the tray and that is moved as the tray moves in the storage direction by the driving force of the tray moving motor and is engaged with the lock portion. Department.

  Accordingly, since the tray is locked in the storage position as the tray is moved in the storage direction by the driving force of the tray movement motor, it is not necessary to provide separate motors for moving and locking the tray. Therefore, it is possible to simplify the mechanism related to the lock and shorten the operation time.

  In the invention described in claim 2, the lock portion is provided in the guide, and an engagement recess is formed in the lock portion, and the elastically deformable cover engaged with the lock portion as the locked portion. A lock spring having a lock piece is provided, and when the tray is moved toward the storage position, the lock piece is slidably contacted with the lock portion and elastically deformed, and when the tray is moved to the storage position. The locked piece is elastically restored and engaged with the engaging recess to lock the tray.

  Therefore, the structure and operation of the lock mechanism can be simplified.

  According to a third aspect of the present invention, the base chassis rotatably supports a turning lever for moving the tray from the storage position toward the pulling position, and the turning lever is mounted on the tray. An action portion to which a pressing force in the pull-out direction is applied is provided, and when the tray is in the storage position, the user turns the turning lever in a predetermined direction to cause the action portion to move to the action portion. By applying a pressing force, the tray can be moved in the drawing direction.

  Therefore, the tray can be discharged only by rotating the rotation lever, and the tray can be moved in the pull-out direction by a simple operation.

  In the invention described in claim 4, a lock lever having a locking projection as the lock portion and rotatably supported by the base chassis is provided, and the locked portion is provided on the tray. A spring member is provided to urge the lock lever in one direction in the rotation direction, and when the tray is moved toward the storage position, the locked portion is slidably contacted with the lock lever, and the lock lever is The lock member is rotated in the other direction against the biasing force of the spring member, and the lock lever is rotated in the one direction by the biasing force of the spring member when the tray is moved to the storage position. The locking projection is engaged with the locked portion so that the tray is locked.

  Therefore, the structure and operation of the lock mechanism can be simplified.

  In the invention described in claim 5, a main rack in which the rack body is fixed to the base chassis, and a first auxiliary rack that is supported by the main rack so as to be movable in the pull-out direction and the storage direction. A second auxiliary rack supported by the main rack so as to be movable in the pull-out direction and the storage direction; a pressing portion provided in the second auxiliary rack; a pressed portion provided in the lock lever; The second auxiliary rack that meshes with the pinion gear in the storage position is moved in the storage direction with respect to the main rack by the driving force of the tray driving motor, and is pressed by the pressing portion of the second auxiliary rack. The pressing portion is pressed and the lock lever is rotated in the other direction so that the lock of the tray by the lock lever is released.

  Therefore, in addition to the movement of the tray by the driving force of the tray moving motor, the lock on the tray is released, so that no separate motor is required to move the tray and release the lock on the tray, The number of parts can be reduced and the mechanism can be simplified.

  In the invention described in claim 6, the first auxiliary rack is biased in the pull-out direction, and the first auxiliary rack is pressed against the tray at the storage position to move the first auxiliary rack toward the tray in the pull-out direction. An urging spring for providing a moving force is provided, and when the tray is in the storage position, the second auxiliary rack moves the first auxiliary rack in the storage direction by the first auxiliary rack. The auxiliary rack is pressed in the storage direction, the tray is locked by the lock lever, and the tray can be moved in the pull-out direction by the biasing force of the biasing spring.

  Therefore, the tray can be discharged only by moving the first auxiliary rack, and the tray can be moved in the pull-out direction by a simple operation.

  The electronic device of the present invention includes a disk drive device that records and / or reproduces an information signal to / from a disk-shaped recording medium, and a device main body in which the disk drive device is disposed, A disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and the optical pickup is recorded on the disk-shaped recording medium. A disk drive unit having a pickup base that is movably supported in a radial direction of the medium; a base chassis fixed at a predetermined position; a pull-out direction with respect to the base chassis; and a direction opposite to the pull-out direction. It can be moved in the storage direction, and it can be moved from the drawer position to the storage position. A tray that is moved, a guide attached to the base chassis, a rail that is provided on the tray and that is guided by the guide when the tray moves in the pull-out direction and the storage direction, and is disposed on the tray A tray moving motor, a pinion gear that is rotated by the driving force of the tray moving motor, a rack body that is attached to the base chassis and meshes with the pinion gear, and a lock portion that locks the tray in the storage position; A locked portion that is provided on the tray and is moved along with the movement of the tray in the storing direction by the driving force of the tray moving motor and is engaged with the lock portion.

  Accordingly, since the tray is locked in the storage position as the tray is moved in the storage direction by the driving force of the tray movement motor, it is not necessary to provide separate motors for moving and locking the tray. Therefore, it is possible to simplify the mechanism related to the lock and shorten the operation time.

  The best mode of the disk drive device and the electronic apparatus according to the present invention will be described below with reference to the accompanying drawings. In the best mode described below, the electronic device of the present invention is applied to a personal computer, and the disk drive of the present invention is applied to a disk drive provided in the personal computer.

  The applicable range of the electronic apparatus and the disk drive device of the present invention is not limited to the personal computer and the disk drive device provided therein. The electronic apparatus of the present invention includes various electronic apparatuses that handle disc-shaped recording media, such as game apparatuses, information terminal apparatuses such as PDAs (Personal Digital Assistants), imaging apparatuses such as still cameras, electronic cameras, and video cameras, and various disks. The present invention can be widely applied to recording equipment, acoustic equipment, and the like that handle a state recording medium. The disk drive device of the present invention can be widely applied to disk drive devices that record and / or reproduce information signals on / from disk-shaped recording media handled in these various electronic devices.

  The electronic device (personal computer) 1 includes, for example, a device main body 2 and a display device 3 rotatably supported by the device main body 2, and a keyboard 4 on which necessary operation keys are arranged is provided on the device main body 2. (See FIGS. 1 and 2). The electronic device 1 may be, for example, a so-called desktop type device in which a device main body and a display device are provided separately.

  The disk drive device 5 according to the first best mode will be described below (see FIGS. 3 to 11).

  The device main body 2 has a disk drive 5 built therein. The disk drive device 5 is configured such that a tray, which will be described later, can be pulled out and stored in the apparatus main body 2.

  In the following description of the disk drive device 5, for convenience of explanation, the direction in which the tray is pulled out with respect to the device main body 2 is defined as the front, the storage direction of the tray with respect to the device main body 2 is defined as the rear, and the vertical, forward, backward, left and right orientations are defined. That is, the F direction shown in FIGS. 1 and 2 is the front, and the R direction is the rear.

  The disk drive device 5 is formed in a flat and substantially rectangular shape, and includes a base chassis 6 and a tray 7 supported by the base chassis 6 so as to be movable in the front-rear direction (see FIGS. 3 and 4).

  The base chassis 6 includes a bottom surface portion 8 facing upward and downward, side surface portions 9 and 9 projecting upward from left and right side portions of the bottom surface portion 8, and a rear surface portion 10 projecting upward from a rear end portion of the bottom surface portion 8. have.

  The side surface portion 9 includes a standing wall portion 9a that is continuous with the bottom surface portion 8 and faces in the left-right direction, and mounting wall portions 9b, 9b, and 9b that protrude from the upper edge of the standing wall portion 9a to the side (inward) and face in the up-down direction. . The mounting wall portions 9b, 9b, 9b are provided apart in the front-rear direction.

  Guides 11, 11 extending in the front-rear direction are fixed to the left and right ends of the bottom surface 8. The guides 11 and 11 are positioned along the inner surfaces of the side surface portions 9 and 9, respectively.

  One of the guides 11, for example, the guide 11 located on the right side, is provided with a lock portion 12 protruding leftward at the lower end portion near the front end (see FIG. 5). The lock portion 12 is formed with an engagement recess 12a that opens to the left. The front portion of the engaging recess 12a in the lock portion 12 is provided as a sliding protrusion 13, and the sliding protrusion 13 is formed with an inclined edge 13a that is displaced to the left as it goes rearward. The inclined edge 13a is formed on the front side of the engaging recess 12a.

  A main rack 14 extending in the front-rear direction is fixed to one side surface 9, for example, the upper surface of the mounting wall portions 9b, 9b, 9b of the side surface 9 located on the left side (see FIGS. 3 and 4). The main rack 14 is formed in a substantially plate shape facing in the vertical direction, and has rack teeth 14a on the lower surface. The rack teeth 14 a are formed from the front end to the rear end of the main rack 14.

  A front end portion of the main rack 14 is provided with a stopper portion 14b protruding forward (see FIGS. 3 and 6).

  An extension rack 15 is supported at the front end of the main rack 14 so as to be rotatable about a shaft extending in the left-right direction. A rack body 40 is constituted by the main rack 14 and the extension rack 15.

  The extension rack 15 is rotated between an extended position extended to the main rack 14 and a retracted position drawn into the main rack 14. The extension rack 15 has rack teeth 15a on one surface.

  The extended position is a position where the rack teeth 15a are continuous with the rack teeth 14a of the main rack 14 in the front-rear direction (see FIG. 6), and the retracted position is a position where the rack teeth 15a are orthogonal to the rack teeth 14a of the main rack 14 ( FIG. 3).

  The extension rack 15 is provided with a stopper portion 15b (see FIG. 6). When the extension rack 15 is rotated to the extended position, the stopper portion 15b is engaged with the stopper portion 14b of the main rack 14, the rotation of the extension rack 15 is restricted, and the extension rack 15 is held at the extended position. . The extension rack 15 is held in the retracted position by its own weight, for example.

  The tray 7 has a base body 16 and a front panel 17 provided at the front end of the base body 16 (see FIGS. 3 and 4).

  The base body 16 is formed in a flat shape that faces in the vertical direction.

  A disk drive unit 18 is supported on the base body 16 so as to be movable in a substantially vertical direction. The disk drive unit 18 is fixed to a pickup base 18a, an optical pickup 18b supported by the pickup base 18a so as to be movable in the horizontal direction, a spindle motor 18c fixed to the pickup base 18a, and a motor shaft of the spindle motor 18c. And a disk table 18d.

  A tray driving mechanism 19 is disposed at the left end portion of the rear end portion of the base body 16. The tray driving mechanism 19 has a tray moving motor 20 and a gear mechanism 21 having a plurality of reduction gears rotated by the driving force of the tray moving motor 20, and a pinion gear 21 a is used as the final stage gear of the gear mechanism 21. Is used.

  The pinion gear 21 a can mesh with the rack teeth 14 a of the main rack 14 and the rack teeth 15 a of the extension rack 15 fixed to the base chassis 6. Accordingly, when the pinion gear 21 a is rotated by the driving force of the tray moving motor 20, the tray 7 is moved forward or backward relative to the base chassis 6 according to the rotation direction of the tray moving motor 20.

  Rails 22 are supported on the left and right side surfaces of the base body 16 so as to be movable in the front-rear direction. The rails 22 and 22 are supported by guides 11 and 11 fixed to the base chassis 6 so as to be movable in the front-rear direction. The rails 22 and 22 are provided with a first restricted portion and a second restricted portion (not shown) spaced apart from each other in the front-rear direction. In addition, the base body 16 and the guides 11 and 11 are provided with restriction portions (not shown) that can be engaged with the first restricted portion and the second restricted portion, respectively.

  A lock spring 23 is attached to the lower surface of the right end portion of the base body 16 (see FIG. 5). The locked spring 23 is provided as a locked portion that is engaged with the lock portion 12 of the guide 11.

  The locked spring 23 includes a mounted plate portion 24 attached to the base body 16 and a locked piece 25 provided continuously at the right edge of the front end portion of the mounted plate portion 24. The locked piece 25 is provided with an engagement piece portion 25a formed in a V shape protruding rightward.

  A shaft-like action portion 16 a protruding downward is provided at the right end portion of the front end portion of the base body 16.

  A jig insertion hole 17a penetrating in the front-rear direction is formed at the right end of the front panel 17 (see FIGS. 3 and 4).

  A rotation lever 26 is rotatably supported at the front end portion of the lower surface of the base chassis 6 (see FIG. 5). The rotation lever 26 has a pressing arm portion 26b and an action portion 26c that protrude to the opposite sides with respect to the rotation fulcrum portion 26a. The rotation lever 26 is positioned immediately behind the jig insertion hole 17a formed in the front panel 17 with the action portion 26c.

  A rotation restricting pin 6 a protruding upward is provided at the right end of the base chassis 6.

  The rotation lever 26 is biased by a torsion coil spring (not shown) in a direction in which the pressing arm portion 26b approaches the rotation regulating pin 6a from the front. Therefore, the rotation lever 26 is in a state where the pressing arm portion 26b is in contact with the rotation regulating pin 6a from the front by the biasing force of the torsion coil spring in a state where no force is applied to the action portion 26c.

  Hereinafter, the movement operation of the tray 7 in the disk drive device 5 will be described (see FIGS. 5 and 7 to 11).

  First, a state where the tray 7 is in the storage position will be described (see FIGS. 5 and 7).

  In the state where the tray 7 is in the storage position, as shown in FIG. 5, the engagement piece portion 25a of the locked piece 25 of the lock spring 23 is engaged with the engagement recess 12a of the lock portion 12 of the guide 11, and the tray 7 is locked in the storage position.

  The extension rack 15 is in the retracted position and is bent by 90 ° with respect to the main rack 14 (see FIG. 7). The extension rack 15 is pressed from the front by the front panel 17 of the tray 7 in the storage position and is held in the retracted position.

  The pinion gear 21a of the tray drive mechanism 19 is meshed with the rear end portion of the rack teeth 14a in the main rack 14 (see FIG. 8).

  The rotation lever 26 is in a state where the pressing arm portion 26b is in contact with the rotation regulating pin 6a from the front by the urging force of the torsion coil spring.

  As described above, when the tray moving motor 20 is rotated in one direction, for example, by an operation on an eject button (not shown) by the user in a state where the tray 7 is in the storage position, the pinion gear 21a moves on the rack teeth 14a. The tray 7 is rolled forward, and the tray 7 is moved forward from the storage position to the drawing position.

  At this time, the rails 22 and 22 supported on the left and right side surfaces of the tray 7 are guided by the guides 11 and 11, respectively. When the tray 7 moves forward, the rails 22 and 22 are slid with respect to the guides 11 and 11 and the tray 7, respectively.

  At this time, the rotation lever 26 is in a state in which the pressing arm portion 26b is in contact with the rotation regulating pin 6a from the front by the biasing force of the torsion coil spring, and from the action portion 16a provided on the base body 16 of the tray 7. It is in the retracted position. Therefore, when the tray 7 is moved forward, the rotation lever 26 does not contact the action portion 16a.

  When the tray 7 is moved forward from the storage position, the engaging piece portion 25 a of the locked spring 23 is slid and elastically deformed by the lock portion 12 of the guide 11, and the engaging piece portion 25 a is formed on the sliding protrusion 13. By moving over the rear end, it is elastically restored and the lock at the storage position of the tray 7 is released.

  When the tray 7 is moved forward toward the drawing position, the pinion gear 21a is rolled with the rack teeth 14a of the main rack 14 facing forward. When the tray 7 is moved forward, the front panel 17 is separated forward from the extension rack 15 in the retracted position, and the extension rack 15 is allowed to rotate.

  The tray 7 is moved forward, and the pinion gear 21a is engaged with the front end portion of the rack tooth 14a in the main rack 14 (see FIG. 9). At this time, a portion of the tray 7 excluding the rear end portion protrudes forward from the base chassis 6.

  The pinion gear 21a continues to rotate and the tray 7 continues to move forward, and the pinion gear 21a is disengaged from the rack teeth 14a of the main rack 14. The pinion gear 21a is engaged with the rack teeth 15a by pushing up the extension rack 15 in the retracted position upward after releasing the engagement with the rack teeth 14a (see FIG. 10). The extension rack 15 that is pushed up and rotated upward by the pinion gear 21a has its stopper portion 15b in contact with the stopper portion 14b of the main rack 14, and is restricted from rotating upward and is held in the extended position.

  Thus, the extension rack 15 is held in the extended position with the stopper portion 15b in contact with the stopper portion 14b of the main rack 14, so that the extension rack 15 is not rotated upward more than necessary, and the pinion gear 21a. The proper meshing state with respect to the rack teeth 15a can be maintained, and the tray 7 can be reliably moved to the drawing position.

  The entire tray 7 is moved forward from the base chassis 6 (see FIG. 11). At this time, in the rails 22 and 22, the first restricted portion is engaged with the restricting portion of the base body 16, the second restricted portion is engaged with the restricting portion of the guides 11 and 11, and forward of the tray 7. Is restricted and stopped, and the tray 7 reaches the drawing position. When the forward movement of the tray 7 is stopped, the rotation of the tray moving motor 20 is stopped. At this time, the pinion gear 21 a is meshed with the rack teeth 15 a of the extension rack 15.

  In a state where the tray 7 has been moved to the drawing position, the user should mount the disk-shaped recording medium 100 on the disk table 18d of the disk drive unit 18 or remove the disk-shaped recording medium 100 from the disk table 18d. Can do.

  The movement of the tray 7 from the drawer position to the storage position is performed as follows by an operation reverse to the above.

  In a state where the tray 7 is in the drawer position (see FIG. 11), for example, when the tray moving motor 20 is rotated in a direction opposite to the above by an operation on a loading button (not shown) by the user, the pinion gear 21a is extended to the extension rack. The 15 rack teeth 15a are continuously rolled rearward on the rack teeth 14a of the main rack 14, and the tray 7 is moved rearward from the drawer position toward the storage position.

  At this time, the rails 22 and 22 supported on the left and right side surfaces of the tray 7 are guided by the guides 11 and 11, respectively. When the tray 7 moves rearward, the rails 22 and 22 are slid with respect to the guides 11 and 11 and the tray 7, respectively.

  When the tray 7 is moved backward, as in the case of moving forward, the rotation lever 26 is twisted and the pressing arm portion 26b is in contact with the rotation regulating pin 6a from the front by the biasing force of the coil spring. Thus, the rotation lever 26 does not contact the action portion 16a.

  When the tray 7 is moved rearward toward the storage position, the engagement piece 25a of the locked spring 23 is slid and elastically deformed by the sliding projection 13 of the guide 11, and the sliding projection 13 By moving over the rear end, it is elastically restored, the engaging piece 25a is engaged with the engaging recess 12a, and the tray 7 is locked in the storage position (see FIG. 5).

  When the tray 7 reaches the storage position, the meshing with the rack teeth 15a of the pinion gear 21a is released. Accordingly, the extension rack 15 is rotated by its own weight and is in the retracted position, and the extension rack 15 is pressed from the front by the front panel 17 and held in the retracted position (see FIG. 7).

  When the tray 7 reaches the retracted position and the backward movement is stopped, the rotation of the tray moving motor 20 is stopped. At this time, the pinion gear 21a is meshed with the front end portion of the rack tooth 14a in the main rack 14 (see FIG. 8).

  Next, a so-called forced discharge operation for forcibly moving the tray 7 forward when the tray 7 is not moved forward from the storage position will be described (see FIG. 12). The case where the tray 7 is not moved forward is, for example, the case where the current is not supplied to the tray moving motor 20 due to a defect in the current supply circuit, or the case where the tray moving motor 20 fails.

  The user inserts, for example, a tray moving jig 200 such as a pin having a small diameter into the jig insertion hole 17a of the front panel 17 from the front side. When the tray moving jig is inserted into the jig insertion hole 17a, the action portion 26c of the rotating lever 26 is pressed backward by the tray moving jig 200, and the rotating lever 26 is rotated to be rotated by the pressing arm portion 26b. The action part 16a provided in the base body 16 of the tray 7 is pressed forward.

  When the action portion 16a is pressed forward, a forward moving force is applied to the tray 7, the engagement between the lock portion 12 of the guide 11 and the locked piece 25 of the lock spring 23 is released, and the tray 7 The lock at the storage position is released, and the tray 7 is moved forward.

  By grasping and pulling out the tray 7 that has been unlocked and moved forward, the tray 7 can be moved to the drawer position.

  As described above, in the disk drive device 5, the extended position that is extended to the main rack 14 and capable of meshing with the pinion gear 21a, and the retracted position that is drawn into the main rack 14 and is not engaged with the pinion gear 21a. An extension rack 15 that is rotated between the two is provided.

  In this way, the extension rack 15 is rotated between the extended position and the retracted position and is rotated to the extended position only when necessary, so that the depth dimension of the disk drive device 5 is not increased. Further, the amount of movement of the tray 7 in the pull-out direction can be increased by the amount of engagement of the pinion gear 21a with the rack teeth 15a of the extension rack 15.

  Therefore, in the disk drive device 5, the pull-out stroke of the tray 7 can be increased while ensuring miniaturization.

  Further, the extension rack 15 is rotatably supported at the end of the main rack 14 in the pull-out direction side, and is pushed up by the pinion gear 21a so that the extension rack 15 is rotated from the retracted position to the extended position. Accordingly, the extension rack 15 is reliably rotated, and the reliability of the drawer 7 pull-out operation can be improved.

  In the disk drive device 5, the lock unit 12 that locks the tray 7 in the storage position, and is moved along with the movement of the tray 7 in the storage direction by the driving force of the tray moving motor 20, is moved to the lock unit 12. A locked spring 23 that functions as a locked portion to be engaged is provided.

  Accordingly, since the tray 7 is locked in the storage position as the tray 7 is moved in the storage direction by the driving force of the tray moving motor 20, each of the separate motors is used to move and lock the tray 7. There is no need to provide it, and the mechanism relating to the lock can be simplified and the operation time can be shortened.

  Further, the lock portion 12 is provided in the guide 11 and the engagement recess 12a is formed in the lock portion 12. When the tray 7 is moved toward the storage position, the locked piece 25 is slidably contacted with the lock portion 12 and elastically deformed. Since the tray 7 is locked by being engaged with the engaging recess 12a, the structure and operation of the locking mechanism can be simplified.

  Further, a rotating lever 26 for moving the tray 7 from the storage position to the pulling position is rotatably supported on the base chassis 6, and an operating portion to which the pressing force in the pulling direction is applied to the tray 7 by the rotating lever 26. 16a is provided. Therefore, the tray 7 can be forcibly ejected only by rotating the rotation lever 26 by the tray moving jig 200, and the tray 7 can be forcibly moved in the pull-out direction by a simple operation.

  Next, a disk drive device 5A according to the second best mode will be described (see FIGS. 13 to 23).

  The device main body 2 includes a disk drive device 5A. In the disk drive device 5A, a tray, which will be described later, can be pulled out and stored in the apparatus main body 2.

  In the following description of the disk drive device 5A, for convenience of explanation, the direction in which the tray is pulled out with respect to the device main body 2 is defined as the front, the storage direction of the tray with respect to the device main body 2 is defined as the rear, and the vertical, front, rear, left, and right orientations are defined.

  The disk drive device 5A is formed in a flat and substantially rectangular shape, and includes a base chassis 50 and a tray 51 that is supported by the base chassis 50 so as to be movable in the front-rear direction (see FIGS. 13 and 14).

  The base chassis 50 includes a bottom surface portion 52 facing upward and downward, side surface portions 53 and 53 projecting upward from left and right side portions of the bottom surface portion 52, and a rear surface portion 54 projecting upward from a rear end portion of the bottom surface portion 52. have.

  The side surface portion 53 includes a standing wall portion 53a that is continuous with the bottom surface portion 52 and faces in the left-right direction, and mounting wall portions 53b, 53b, and 53b that protrude from the upper edge of the standing wall portion 53a to the side (inward) and face in the up-down direction. . The mounting wall portions 53b, 53b, and 53b are spaced apart in the front-rear direction.

  A support piece 54 a protruding forward is provided at the left end of the upper edge of the rear surface portion 54.

  A lock lever 55 that functions as a lock portion is supported on the support piece portion 54a so as to be rotatable in the horizontal direction. The lock lever 55 is supported by a support piece 54a, a locking projection 57 protruding substantially forward from the supported portion 56, and protruding leftward from the supported portion 56. The connecting portion 58 includes a pressed portion 59 that protrudes downward from the rear edge of the connecting portion 58.

  The locking projection 57 has an inclined edge 57a that is displaced rearward as it goes rightward, and an engaging edge 57b that continues to the right end of the inclined edge 57a and extends substantially to the left and right.

  A spring member 60 is supported between the supported portion 56 of the lock lever 55 and the rear surface portion 54 of the base chassis 50. Therefore, the lock lever 55 is applied with an urging force in the direction in which the locking projection 57 rotates to the right by the spring member 60.

  Guides 61, 61 extending in the front-rear direction are fixed to the left and right end portions of the bottom surface portion 52, respectively. The guides 61 and 61 are positioned along the inner surfaces of the side surface portions 53 and 53, respectively.

  A main rack 62 extending in the front-rear direction is fixed to one side surface 53, for example, the upper surface of the mounting wall portions 53b, 53b, 53b of the side surface portion 53 located on the left side. The main rack 62 faces in the vertical direction and has rack teeth 62a on the lower surface.

  As shown in FIG. 15, the main rack 62 is formed with a front notch 62b opened forward and right at the front end, and a rear notch 62c opened rearward and right at the rear end. ing. The main rack 62 is provided with an approximately left half of which the front notch 62b and the rear notch 62c are not formed as the outer part 63, and a substantially right half of which the front notch 62b and the rear notch 62c are formed. The inner portion 64 is provided. Therefore, the length of the outer portion 63 in the front-rear direction is longer than the length of the inner portion 64 in the front-rear direction.

  The rack teeth 62a are formed at portions of the outer portion 63 excluding the front end portion and the rear end portion.

  A first stopper protrusion 64a, 64a, a second front stopper protrusion 64b, and a second rear stopper protrusion 64c protrude upward from the inner side 64 of the main rack 62 in order from the front side. It is provided in the state.

  A first auxiliary rack 65 and a second auxiliary rack 66 each formed in a substantially plate shape are supported on the inner portion 64 of the main rack 62 so as to be slidable in the front-rear direction. A rack body 80 is constituted by the main rack 62, the first auxiliary rack 65 and the second auxiliary rack 66.

  The first auxiliary rack 65 has supported holes 65a and 65a that are separated from each other in the front and rear directions and extend in the front and rear directions. The first stopper protrusions 64a and 64a are inserted into the supported holes 65a and 65a, respectively. It is supported by the inner part 64. The first auxiliary rack 65 faces in the vertical direction, and has rack teeth 65b at the front side portion of the supported hole 65a located on the front side on the lower surface.

  A first biasing spring 67 is supported between the first auxiliary rack 65 and the main rack 62, and the first auxiliary rack 65 is biased forward.

  The first auxiliary rack 65 is moved between an extended position extended to the main rack 62 and a retracted position retracted with respect to the main rack 62. The extended position is the position of the front end in the movement direction, and the retracted position is the position of the rear end in the movement direction.

  The second auxiliary rack 66 has a supported hole 66a extending in the front-rear direction, and the second front stopper protrusion 64b and the second rear stopper protrusion 64c are inserted into the supported hole 66a so that the main rack 62 It is supported by the inner part 64. The second auxiliary rack 66 faces in the vertical direction, and has rack teeth 66b in the rear side portion of the supported hole 66a on the lower surface. The rear end portion of the second auxiliary rack 66 is provided as a pressing portion 66c.

  A second biasing spring 68 is supported between the second auxiliary rack 66 and the main rack 62, and the second auxiliary rack 66 is biased forward.

  The tray 51 has a base body 69 and a front panel 70 provided at the front end of the base body 69 (see FIGS. 13 and 14).

  The base body 69 is formed in a flat shape that faces in the vertical direction.

  A disk drive unit 71 is supported on the base body 69 so as to be movable in a substantially vertical direction. The disk drive unit 71 is fixed to a pickup base 71a, an optical pickup 71b supported by the pickup base 71a so as to be movable in the horizontal direction, a spindle motor 71c fixed to the pickup base 71a, and a motor shaft of the spindle motor 71c. And a disk table 71d.

  A tray driving mechanism 72 is disposed at the left end portion of the rear end portion of the base body 69. The tray driving mechanism 72 has a tray moving motor 73 and a gear mechanism 74 having a plurality of reduction gears rotated by the driving force of the tray moving motor 73, and a pinion gear 74 a is used as the final stage gear of the gear mechanism 74. Is used.

  The pinion gear 74 a can mesh with the rack teeth 62 a of the main rack 62 fixed to the base chassis 50, the rack teeth 65 b of the first auxiliary rack 65, and the rack teeth 66 b of the second auxiliary rack 66. Accordingly, when the pinion gear 74 a is rotated by the driving force of the tray moving motor 73, the tray 51 is moved forward or backward relative to the base chassis 50 according to the rotation direction of the tray moving motor 73. The pinion gear 74 a is formed to be long in the left-right direction, and has a length that meshes with a portion formed on the outer portion 63 of the rack teeth 62 b of the main rack 62.

  Rails 75 are supported on the left and right side surfaces of the base body 69 so as to be movable in the front-rear direction. The rails 75 and 75 are supported by guides 61 and 61 fixed to the base chassis 50 so as to be movable in the front-rear direction. The rails 75 and 75 are provided with a first restricted portion and a second restricted portion (not shown) that are separated from each other in the front-rear direction. In addition, the base body 69 and the guides 61 and 61 are provided with restriction portions (not shown) that can be engaged with the first restricted portion and the second restricted portion, respectively.

  A shaft-like locked portion 69 a that protrudes upward is provided at a position near the rear end of the base body 69.

  A jig insertion hole 70 a penetrating in the front-rear direction is formed at the left end portion of the front panel 70.

  Hereinafter, the movement operation of the tray 51 in the disk drive device 5A will be described (see FIGS. 16 to 23).

  First, a state where the tray 51 is in the storage position will be described.

  In the state where the tray 51 is in the storage position, as shown in FIG. 16, the locked portion 69 a provided on the base body 69 of the tray 7 is engaged with the locking edge 57 b of the locking projection 57 of the lock lever 55. The tray 51 is locked in the storage position.

  The first auxiliary rack 65 is in the retracted position, and is in contact with the rear surface of the front panel 70 in the tray 7 whose front end is in the storage position while being urged forward by the first urging spring 67.

  In the second auxiliary rack 66, the rear opening edge of the supported hole 66a is in contact with the second rear stopper protrusion 64c, and is held at the front moving end. At this time, the front end of the second auxiliary rack 66 is brought into contact with or close to the rear end of the first auxiliary rack 65, and the pressing portion 66c comes into contact with or approaches the pressed portion 59 of the lock lever 55 from the front. It is in a state.

  The pinion gear 74 a of the tray driving mechanism 72 is meshed with the rack teeth 66 b of the second auxiliary rack 66.

  As described above, in a state where the tray 51 is in the storage position, the tray moving motor 73 is rotated in one direction by an operation on an eject button (not shown) by the user, for example. At this time, the pinion gear 74a is meshed with the rack teeth 66b of the second auxiliary rack 66. However, since the second auxiliary rack 66 is held at the moving end on the front side, the tray 51 moves along with the rotation of the pinion gear 74a. Instead of moving forward, the second auxiliary rack 66 is moved backward by the rotation of the pinion gear 74a (see FIG. 17). When the second auxiliary rack 66 is moved rearward, the pressed portion 59 of the lock lever 55 is pressed backward by the pressing portion 66c, and the lock lever 55 is rotated against the urging force of the spring member 60. The engagement between the locking edge 57b of the locking projection 57 and the locked portion 69a provided on the tray 51 is released. Accordingly, the lock on the tray 51 by the lock lever 55 is released.

  The second auxiliary rack 66 moved rearward is stopped at the rear moving end, with the front opening edge of the supported hole 66a being in contact with the second front stopper protrusion 64b of the main rack 62. In a state in which the second auxiliary rack 66 is stopped at the rear moving end, the front end portion of the rack teeth 66b of the second auxiliary rack 66 and the rear end portion of the rack teeth 62a of the main rack 62 are in the left-right direction. It is assumed that they are stacked.

  The pinion gear 74 a is continuously rotated in the same direction by the driving force of the tray moving motor 73. At this time, since the second auxiliary rack 66 is moved to the rear moving end and the lock to the tray 51 by the lock lever 55 is released, the pinion gear 74a moves forward on the rack teeth 66b of the second auxiliary rack 66. The tray 51 is moved forward from the storage position toward the pulling position (see FIG. 18).

  At this time, the rails 75 and 75 supported on the left and right side surfaces of the tray 51 are guided by the guides 61 and 61, respectively. When the tray 51 moves forward, the rails 75 and 75 are slid with respect to the guides 61 and 61 and the tray 51, respectively.

  The forward movement of the tray 51 causes the pinion gear 74a to continuously mesh with the rack teeth 62a of the main rack 62 from the rack teeth 66b of the second auxiliary rack 66 and rolls forward on the rack teeth 62a ( (See FIG. 19).

  The second auxiliary rack 66 released from meshing with the pinion gear 74a is moved forward by the urging force of the second urging spring 68, and the rear opening edge of the supported hole 66a has a second rear stopper protrusion. It is held at the front moving end in contact with the portion 64c.

  Since the second auxiliary rack 66 is moved forward, the lock lever 55 is rotated in the direction in which the pressed portion 59 is moved substantially forward by the urging force of the spring member 60 and is held at a predetermined position.

  When the tray 51 is moved forward, the first auxiliary rack 65 is moved forward by the urging force of the first urging spring 67 due to the forward movement of the front panel 70, and the rear of the supported holes 65a, 65a. The side opening edges are respectively held in the extended positions in contact with the first stopper protrusions 64a and 64a. In a state where the first auxiliary rack 65 is held in the extended position, the rear end portion of the rack teeth 65b of the first auxiliary rack 65 and the front end portion of the rack teeth 62a of the main rack 62 are overlapped in the left-right direction. State.

  The front panel 70 is moved further forward than the first auxiliary rack 65 held in the extended position, and the tray 51 is protruded forward from the base chassis 50 except for the rear end portion.

  Subsequently, the tray 51 is moved forward, and the pinion gear 74a is continuously meshed with the rack teeth 65b of the first auxiliary rack 65 held at the extended position from the rack teeth 62a of the main rack 62, and forwards on the rack teeth 65b. (See FIG. 20).

  As the pinion gear 74a is rolled forward on the rack teeth 65b of the first auxiliary rack 65, the tray 51 is further moved forward to reach the drawing position, and the whole is moved forward from the base chassis 50. (See FIG. 21). At this time, the rails 75 and 75 have the first restricted portion engaged with the restricting portion of the base body 69, the second restricted portion engaged with the restricting portion of the guides 61 and 61, and the front of the tray 51. Is restricted and stopped, and the tray 51 reaches the drawing position. When the forward movement of the tray 51 is stopped, the rotation of the tray moving motor 73 is stopped.

  In a state in which the tray 51 has been moved to the pull-out position, the user mounts the disk-shaped recording medium 100 on the disk table 71d of the disk drive unit 71 or removes the disk-shaped recording medium 100 from the disk table 71d. Can do.

  The movement of the tray 51 from the drawer position to the storage position is performed as follows by an operation reverse to the above.

  In the state where the tray 51 is in the drawer position (see FIG. 21), when the tray moving motor 73 is rotated in the opposite direction by, for example, an operation on a loading button (not shown) by the user, the pinion gear 74a is The rack teeth 65b of the auxiliary rack 65 are continuously rolled rearward on the rack teeth 66b of the second auxiliary rack 66 through the rack teeth 62a of the main rack 62, and the tray 51 is moved from the drawer position to the storage position. It is moved backwards toward.

  At this time, the rails 75 and 75 supported on the left and right side surfaces of the tray 51 are guided by the guides 61 and 61, respectively. When the tray 51 moves rearward, the rails 75 and 75 are slid with respect to the guides 61 and 61 and the tray 51, respectively.

  When the tray 51 is moved rearward, the first auxiliary rack 65 is pressed by the front panel 70 and moved rearward from the extended position toward the retracted position. At this time, the second auxiliary rack 66 is positioned at the front moving end and is not moved in the front-rear direction.

  As the tray 51 moves rearward, the locked portion 69a is moved rearward, and the locked portion 69a is slid relative to the inclined edge 57a of the locking projection 57 in the lock lever 55 to the right. The lock lever 55 is rotated against the urging force of the spring member 60 (see FIG. 22).

  When the locked portion 69a moved rearward reaches the right end of the inclined edge 57a of the lock lever 55, the lock lever 55 is rotated by the biasing force of the spring member 60, and the locking edge 57b is engaged with the locked portion 69a. Combined. The tray 51 is locked at the storage position by engaging the locking edge 57b with the locked portion 69a.

  The first auxiliary rack 65 moved rearward is held in the retracted position with its front end in contact with the rear surface of the front panel 70 in the tray 7.

  When the tray 51 reaches the retracted position and the backward movement is stopped, the rotation of the tray moving motor 73 is stopped. At this time, the pinion gear 74a is meshed with the rack teeth 66b of the second auxiliary rack 66.

  The lock lever 55 is in a state where the pressed portion 59 is in contact with or close to the pressing portion 66 c of the second auxiliary rack 66. The front end of the second auxiliary rack 66 is in contact with or close to the rear end of the first auxiliary rack 65.

  Next, a so-called forced discharge operation for forcibly moving the tray 51 forward when the tray 51 is not moved forward from the storage position will be described (see FIG. 23). The case where the tray 51 is not moved forward is, for example, the case where the current is not supplied to the tray moving motor 73 due to a failure in the current supply circuit or the case where the tray moving motor 73 is out of order.

  The user inserts, for example, a tray moving jig 200 such as a pin having a small diameter into the jig insertion hole 70a of the front panel 70 from the front side. When the tray moving jig 200 is inserted into the jig insertion hole 70a, the front end of the first auxiliary rack 65 is pressed backward by the tray moving jig 200, and the first auxiliary rack 65 is moved rearward. .

  When the first auxiliary rack 65 is moved rearward, the second auxiliary rack 66 is pressed and moved rearward by the first auxiliary rack 65, and the pressed portion 59 of the lock lever 55 is moved by the pressing portion 66c. It is pushed backward. When the pressed portion 59 is pressed rearward by the pressing portion 66 c, the lock lever 55 is rotated against the urging force of the spring member 60 and is provided on the locking edge 57 b of the locking projection 57 and the tray 51. The engagement with the locked portion 69a is released. Accordingly, the lock on the tray 51 by the lock lever 55 is released.

  In a state where the lock on the tray 51 by the lock lever 55 is released, the user pulls out the tray moving jig 200 from the jig insertion hole 70a. When the tray moving jig 200 is pulled out from the jig insertion hole 70a, the second auxiliary rack 66 and the first auxiliary rack 65 are moved by the urging forces of the second urging spring 68 and the first urging spring 67, respectively. Move forward. At this time, the front panel 70 is pressed forward by the front end of the first auxiliary rack 65, and the tray 51 is moved forward.

  By grasping and pulling out the tray 51 that has been unlocked and moved forward, the tray 51 can be moved to the drawer position.

  As described above, in the disk drive device 5A, the extended position that is extended to the main rack 62 and capable of meshing with the pinion gear 74a, and the retracted position that is drawn into the main rack 62 and is not engaged with the pinion gear 74a. A first auxiliary rack 65 that functions as an extension rack that is moved between the two is provided.

  Thus, since the first auxiliary rack 65 is moved between the extended position and the retracted position and is moved to the extended position only when necessary, the depth dimension of the disk drive device 5A does not increase. Further, the amount of movement of the tray 51 in the pull-out direction can be increased by the amount of engagement of the pinion gear 74a with the rack teeth 65b of the first auxiliary rack 65.

  Therefore, in the disk drive device 5A, the pull-out stroke of the tray 51 can be increased while ensuring miniaturization.

  In addition, a first biasing spring 67 that biases the first auxiliary rack 65 in the pull-out direction is provided, and the first auxiliary rack 65 is moved to the first position when the tray 51 is moved from the storage position toward the pull-out position. Since the urging force of the urging spring 67 is moved from the retracted position to the extended position, the first auxiliary rack 65 is reliably moved with the movement of the tray 51, and the reliability of the operation of pulling out the tray 51 is improved. be able to.

  Further, in the disk drive device 5A, the main rack 62, the first auxiliary rack 65, and the second auxiliary rack 66 are each formed in a substantially plate shape, and the first auxiliary rack 65 and the second auxiliary rack 66 are formed on the main rack 62. Since the two auxiliary racks 66 are supported so as to be movable in a state of being stacked in the thickness direction, the thickness can be reduced.

  In the disk drive device 5 </ b> A, the lock lever 55 that functions as a lock unit that locks the tray 51 in the storage position and the movement of the tray 51 in the storage direction by the driving force of the tray moving motor 73. And a locked portion 69a engaged with the lock lever 55 is provided.

  Accordingly, since the tray 51 is locked in the storage position as the tray 51 is moved in the storage direction by the driving force of the tray moving motor 73, each of the separate motors is used to move and lock the tray 51. There is no need to provide it, and the mechanism relating to the lock can be simplified and the operation time can be shortened.

  Also, a lock lever 55 having a locking projection 57 and functioning as a lock portion rotatably supported by the base chassis 50, and a spring member that urges the lock lever 55 in one direction in the rotation direction. 60, and the locking edge 57b is engaged with the locked portion 69a by sliding contact with the inclined edge 57a of the locked portion 69a so that the tray 51 is locked.

  Therefore, the structure and operation of the lock mechanism can be simplified.

  Furthermore, in the disk drive device 5A, a second auxiliary rack 66 having a pressing portion 66c that presses the pressed portion 59 of the lock lever 55 is provided, and the second auxiliary rack 66 is driven by the driving force of the tray moving motor 73. 66 is moved rearward, and the pressed portion 59 is pressed by the pressing portion 66c so that the lock of the tray 51 by the lock lever 55 is released.

  Therefore, in addition to the movement of the tray 51 by the driving force of the tray moving motor 73, the lock on the tray 51 is released. Therefore, each of the different motors is used to move the tray 51 and release the lock on the tray 51. The number of parts can be reduced and the mechanism can be simplified.

  Further, in the disk drive device 5A, a second auxiliary rack 66 for releasing the lock on the tray 51 by the lock lever 55 is movably supported on the main rack 62, and pulled out to the tray 51 when the lock is released. A first auxiliary rack 65 that applies a pressing force in the direction is provided. Therefore, the tray 51 can be forcibly discharged simply by pressing the first auxiliary rack 65 with the tray moving jig 200, and the tray 51 can be forcibly moved in the pull-out direction by a simple operation.

  In addition, since the first auxiliary rack 65 that functions as an extension rack is also used as a member for forcibly discharging the tray 51, the number of parts can be reduced.

  In the above example, the disk drive units 18 and 71 are movably supported on the trays 7 and 51, respectively. However, for example, the disk drive units 18 and 71 are movable to the base chassis 6 and 50, respectively. It may be supported by.

  In this case, the trays 7 and 51 and the disk drive units 18 and 71 are not pulled out, and only the trays 7 and 51 are pulled out.

  The specific shapes and structures of the respective parts shown in the above-described best mode are merely examples of the implementation of the present invention, and the technical scope of the present invention is limited by these. It should not be interpreted in a general way.

2 to 23 show the best mode for carrying out the present invention, and this figure is a perspective view of an electronic apparatus. It is a perspective view of the electronic device which shows the state by which the tray was pulled out. 4 to 12 together show the first best mode of the present invention, and this figure is an exploded perspective view of the disk drive device. It is a perspective view which shows a disk drive device. It is an expansion perspective view which shows a guide, a to-be-locked spring, and a rotation lever in the state which abbreviate | omitted the base chassis. It is an expansion perspective view which shows a part of main rack and an extension rack. It is an expansion perspective view which shows the state by which the extension rack is hold | maintained at the drawing-in position. 9 to 12 show the operation of the disk drive device, and this figure is a schematic plan view showing a state where the tray is in the storage position. It is a schematic plan view which shows the state in the middle of being moved toward the drawer position. It is an expansion perspective view which shows the state in which the pinion gear is meshed with the rack teeth of the extension rack when the tray is moved. It is a schematic plan view which shows the state by which the tray was moved to the drawing position. It is an enlarged bottom view which shows the state in which the rotation lever is rotated and the tray is forcibly ejected. FIGS. 14 to 23 together show the second best mode of the present invention, and this figure is an exploded perspective view of the disk drive device. It is a perspective view which shows a disk drive device. It is an expansion disassembled perspective view which shows a rack body. FIGS. 17 to 23 show the operation of the disk drive device, and FIG. 17 is a schematic plan view showing a state where the tray is in the storage position. It is a schematic plan view which shows the state by which the 2nd auxiliary | assistant rack was moved back and the lock | rock was cancelled | released. It is a schematic plan view which shows the state immediately after the tray was moved toward the drawer position. It is a schematic plan view which shows the state in the middle of being moved toward the drawer position. It is a schematic plan view showing a state where the pinion gear is engaged with the rack teeth of the first auxiliary rack when the tray is moved. It is a schematic plan view which shows the state by which the tray was moved to the drawing position. FIG. 10 is a schematic plan view showing a state where the lock lever is rotated and the tray is locked when the tray is moved from the drawer position to the storage position. It is a schematic plan view showing a state where the first auxiliary rack and the second auxiliary rack are moved and the tray is forcibly discharged.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electronic device, 2 ... Apparatus main body, 5 ... Disk drive apparatus, 6 ... Base chassis, 7 ... Tray, 11 ... Guide, 12 ... Lock part, 12a ... Engagement recessed part, 18 ... Disk drive unit, 18a ... Pickup base , 18b ... optical pickup, 18c ... spindle motor, 18d ... disc table, 20 ... tray moving motor, 21a ... pinion gear, 22 ... rail, 23 ... locked spring, 25 ... locked piece, 26 ... rotating lever, 5A ... Disc drive device 50 ... Base chassis 51 ... Tray 55 ... Lock lever 57 ... Locking projection 60 ... Spring member 61 ... Guide 62 ... Main rack 65 ... First auxiliary rack 66 ... Second auxiliary rack, 66c ... pressing section, 67 ... first biasing spring, 69a ... pressed section, 71 ... disk drive unit, 71a Pickup base, 71b ... Optical pickup, 71c ... Spindle motor, 71d ... Disc table, 73 ... Tray moving motor, 74a ... Pinion gear, 75 ... Rail, 80 ... Rack body, 100 ... Disc-shaped recording medium, 200 ... For tray moving jig

Claims (7)

A disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and the optical pickup is recorded on the disk-shaped recording medium. A disk drive unit having a pickup base that is movably supported in a radial direction of the medium;
A base chassis fixed in place;
A tray that is movable in a drawer direction that is pulled out with respect to the base chassis and in a storage direction that is opposite to the pull-out direction and that is moved between a drawer position and a storage position;
A guide attached to the base chassis;
A rail provided on the tray and guided by the guide when the tray moves in the pull-out direction and the storage direction;
A tray moving motor disposed on the tray;
A pinion gear rotated by a driving force of the tray moving motor;
A rack body attached to the base chassis and meshed with the pinion gear;
A lock portion for locking the tray in the storage position;
A disk drive device comprising: a locked portion that is provided on the tray and is moved along with the movement of the tray in the storing direction by the driving force of the tray moving motor and is engaged with the lock portion. Providing the lock portion in the guide and forming an engagement recess in the lock portion;
A locked spring having an elastically deformable locked piece engaged with the locking portion as the locked portion;
When the tray is moved toward the storage position, the locked piece is slidably contacted with the lock portion and elastically deformed, and when the tray is moved to the storage position, the locked piece is elastically restored. The disk drive device according to claim 1, wherein the tray is locked by being engaged with the engagement recess. The base chassis rotatably supports a turning lever for moving the tray from the storage position toward the drawing position,
The tray is provided with an action portion to which a pressing force in the pull-out direction is applied by the rotation lever,
When the tray is in the storage position, the user rotates the rotation lever in a predetermined direction to apply the pressing force to the action portion to move the tray in the pull-out direction. The disk drive device according to claim 2, wherein the disk drive device is configured to enable the above-described operation. A locking lever having a locking projection as the locking portion and rotatably supported by the base chassis;
The locked portion is provided on the tray,
Providing a spring member for urging the lock lever in one direction in the rotation direction;
When the tray is moved toward the storage position, the locked portion is slidably contacted with the lock lever, and the lock lever is rotated in the other direction against the biasing force of the spring member. When the lever is moved to the storage position, the locking lever is rotated in the one direction by the biasing force of the spring member, and the locking projection engages with the locked portion, thereby locking the tray. The disk drive device according to claim 1. A main rack fixed to the base chassis, a first auxiliary rack supported by the main rack so as to be movable in the pull-out direction and the storage direction, and a main rack in the pull-out direction and the storage direction. A second auxiliary rack supported movably,
A pressing portion is provided in the second auxiliary rack;
Provide a pressed portion on the lock lever,
The second auxiliary rack that meshes with the pinion gear in the storage position is moved in the storage direction with respect to the main rack by the driving force of the tray driving motor, and is pressed by the pressing portion of the second auxiliary rack. The disk drive device according to claim 4, wherein the pressing portion is pressed and the lock lever is rotated in the other direction so that the lock of the tray by the lock lever is released. A biasing spring for biasing the first auxiliary rack in the pull-out direction and pressing the first auxiliary rack against the tray at the storage position to apply a moving force in the pull-out direction to the tray;
When the tray is at the storage position, the first auxiliary rack is pressed in the storage direction by the first auxiliary rack by the user moving the first auxiliary rack in the storage direction. 6. The disk drive device according to claim 5, wherein the lock of the tray by the lock lever is released, and the tray can be moved in the pull-out direction by an urging force of the urging spring. A disk drive device for recording or reproducing information signals on a disk-shaped recording medium, or both, and
An apparatus main body on which the disk drive device is disposed,
The disk drive device
A disk table on which a disk-shaped recording medium is mounted, a spindle motor that rotates the disk table, an optical pickup that is moved in the radial direction of the disk-shaped recording medium mounted on the disk table, and the optical pickup is recorded on the disk-shaped recording medium. A disk drive unit having a pickup base that is movably supported in a radial direction of the medium;
A base chassis fixed in place;
A tray that is movable in a drawer direction that is pulled out with respect to the base chassis and in a storage direction that is opposite to the pull-out direction and that is moved between a drawer position and a storage position;
A guide attached to the base chassis;
A rail provided on the tray and guided by the guide when the tray moves in the pull-out direction and the storage direction;
A tray moving motor disposed on the tray;
A pinion gear rotated by a driving force of the tray moving motor;
A rack body attached to the base chassis and meshed with the pinion gear;
A lock portion for locking the tray in the storage position;
An electronic device comprising: a locked portion that is provided on the tray and is moved along with the movement of the tray in the storing direction by a driving force of the tray moving motor and is engaged with the lock portion.

Images