JP2008165869A - Disk unit - Google Patents

Abstract

An object of the present invention is to reliably prevent damage to an external load during discharge.
When a force for pushing a disk from the outside is applied during ejection, a load is applied to the second loading slider 69 in the rear direction via the internal tray. Accordingly, a load opposite to the load caused by the first loading slider 68 is applied to the moving drive pinion 67 from the second loading slider 69. At this time, since the load is applied to the pinion base 70 by the movement drive pinion 67, when the load on the rear side becomes large, the hook 70B comes off from the side surface, and then the load is applied to the biasing spring 70A. The pinion base 70 moves to the rear side only while the load in the rear direction exceeds the force of the biasing spring 70A. This movement of the pinion base 70 prevents each member of the slider mechanism from being overloaded and damaged.
[Selection] Figure 18

Description

    The present invention relates to a disk device that performs recording or reproduction on a disk-shaped recording medium such as a CD or DVD, and more particularly to a so-called slot-in type disk device that can directly insert or eject a disk from the outside.

As a conventional disk device, there is a so-called slot-in type disk device in which a disk is directly operated by a lever or the like by a loading motor (for example, Patent Document 1).
The slot-in type disk device is characterized in that the operability for inserting and removing the disk is improved.
JP 2002-352498 A

  However, the disk device described in Patent Document 1 cannot cope with disks having different diameters. Even in the configuration in which the internal tray is provided, it is necessary to prevent the slider mechanism from being damaged by an external load.

  Accordingly, the present invention provides a disk device capable of preventing the slider mechanism from being damaged by an external load in a slot-in type disk device provided with an internal tray for accommodating disks of different diameters. The purpose is to do.

According to a first aspect of the present invention, there is provided a disk drive comprising: a chassis exterior composed of a base body and a lid; a disk insertion opening formed on a front surface of the chassis exterior; and the base body and the lid. And a slider mechanism for moving the internal tray, wherein the slider is provided with a traverse base that is displaced at a position, an internal tray that is movable in the front-rear direction between the front side and the rear side of the chassis exterior, The mechanism includes a first loading slider operated by a fixed drive pinion, a pinion base connected to the first loading slider via a biasing means, a movement drive pinion provided on the pinion base, and the movement A second loading slider that is operated by a drive pinion and the rotation of the motor are transmitted to the fixed drive pinion. The internal tray is engaged with the second loading slider, the pinion base is biased to the front side by the biasing means, and the fixed drive pinion is Rotation is transmitted to one loading slider, the moving drive pinion is moved to the front side together with the first loading slider, the second loading slider is moved to the front side by the moving drive pinion, and the inner tray is moved. When the rear loading slider is moved to the front side together with the second loading slider and a load on the rear side larger than the urging force of the urging means is applied to the internal tray during the ejecting operation, the pinion base is It moves to the rear side with respect to one loading slider.
According to a second aspect of the present invention, in the disk device according to the first aspect, the urging means is constituted by an urging spring using a coil spring and a hook that abuts against a side surface of the first loading slider. It is characterized by.

  According to the present invention, the movable drive pinion moves away from the first loading slider with respect to the load applied to the second loading slider, so that the second loading slider can be moved regardless of the movement of the fixed drive pinion. By making it the structure which can move, damage prevention with respect to the load from the outside can be performed reliably.

In the disk device according to the first embodiment of the present invention, the slider mechanism includes a first loading slider operated by a fixed drive pinion, a pinion base connected to the first loading slider via a biasing means, The movable drive pinion provided on the pinion base, a second loading slider that operates by the movable drive pinion, and a gear group that transmits the rotation of the motor to the fixed drive pinion, and the inner tray as the second loading slider Engage, and the pinion base is urged to the front side by the urging means. During the ejecting operation, the fixed drive pinion transmits the rotation to the first loading slider, and the movable drive pinion is moved to the front side together with the first loading slider. The second loading load is moved by the moving drive pinion. If the rear side is larger than the urging force of the urging means during the ejecting operation, and the inner tray is moved to the front side along with the second loading slider. The pinion base moves to the rear side with respect to the first loading slider. According to the present embodiment, the movable drive pinion is configured to be separated from the first loading slider with respect to the load applied to the second loading slider, thereby reliably preventing damage to the external load. be able to.
According to the second embodiment of the present invention, in the disk device according to the first embodiment, the urging means is composed of an urging spring by a coil spring and a hook that comes into contact with the side surface of the first loading slider. It is. According to the present embodiment, by configuring the biasing means with the biasing spring and the hook, a large load can be required for the initial operation, and the second loading slider operates in an unstable manner due to the external load. Can be prevented.

FIG. 1 is an external perspective view showing a chassis exterior of a disk device according to an embodiment of the present invention, FIG. 2 is a conceptual configuration diagram showing a main part of a base body of the disk device, and FIG. FIG. 4 is a schematic configuration diagram showing a main part of the drive unit of the disk device.
First, as shown in FIG. 1, in the disk apparatus according to the present embodiment, a chassis exterior 10 is composed of a base body 11 and a lid body 12, and a bezel 13 is attached to the front surface of the chassis exterior 10. The disk device according to this embodiment is a slot-in type disk device in which the disk A is directly inserted from the disk insertion port 14 provided in the bezel 13.
An opening 15 is provided at the center of the lid 12. The opening 15 is a circular opening having a diameter larger than that of the center hole of the disk A. On the outer periphery of the opening 15, a convex portion 16 that protrudes toward the base body 11 is provided.

Next, as shown in FIG. 2, the base body 11 is provided with a traverse base 20, an internal tray 40, and a slider mechanism 60.
The traverse base 20 is provided with a spindle motor 21, a pickup 22, and drive means 23 that moves the pickup 22. The spindle motor 21 is provided on one end side of the traverse base 20 so as to be positioned substantially at the center of the base body 11. The pickup 22 is disposed on the other end side of the traverse base 20 when in the standby state, and is provided so as to be movable from this standby position to a position close to the spindle motor 21.
The rear side of the traverse base 20 is a substrate base 17 on which a printed circuit board is disposed. The slider mechanism 60 is provided between the traverse base 20 and the substrate base 17 and on the sides of the traverse base 20 and the substrate base 17. A motor 61 that drives the slider mechanism 60 and a gear group 62 that transmits the rotation of the motor 61 are arranged on the substrate base 17 side.
Accordingly, the pickup 22 is disposed on the front surface side (disc loading / unloading side) of the chassis exterior 10 with respect to the center of the disc rotation, and the pickup 22, the motor 61, the gear group 62, and the lead screw driving mechanism are located below the disc. Be placed. The traverse base 20 is moved up and down more on the inner peripheral side than on the outer peripheral side, and the pickup 22, the motor 61, the gear group 62, and the lead screw drive mechanism are arranged on the outer peripheral side.
When the internal tray 40 is on the front surface side of the chassis exterior 10, the internal tray 40 is on the rear side of the central convex portion of the turntable of the spindle motor 21, on the disk receiving surface of the turntable, and on the upper side of the traverse base 20. Be placed. Further, when the internal tray 40 is on the rear surface side of the chassis exterior 10, the internal tray 40 is disposed so as to be detached from the traverse base 20.

  The first traverse slider 63 constituting the slider mechanism 60 is provided on the side portions of the traverse base 20 and the substrate base 17 so as to be movable in the front-rear direction. Further, the second traverse slider 64 constituting the slider mechanism 60 is provided between the traverse base 20 and the substrate base 17 so as to be movable in the left-right direction. The first traverse slider 63 and the second traverse slider 64 are connected by a connecting lever 65. The first traverse slider 63 includes a cam having a portion where the connecting lever 65 rotates and a portion whose position is restricted so that the connecting lever 65 does not rotate by the movement of the first traverse slider 63. . When the traverse base 20 is displaced, both the first traverse slider 63 and the second traverse slider 64 are operated, and when the traverse base 20 is not displaced, only the first traverse slider 63 is operated. The second traverse slider 64 operates together with the first traverse slider 63. The traverse base 20 and the first traverse slider 63 are connected by a cam mechanism (not shown), and the traverse base 20 and the second traverse slider 64 are also connected by a cam mechanism (not shown). The traverse base 20 is rotatably supported by a virtual rotation support shaft X on the disk insertion slot 14 side. Therefore, the traverse base 20 is configured such that the spindle motor 21 is displaced between the base body 11 and the lid body 12 by the operation of the first traverse slider 63 and the second traverse slider 64.

As shown in FIG. 3, the inner tray 40 includes a load lever R (first disk holding portion) 41 on which a disk abutting portion 41 </ b> A that supports one side end of the disk A rotates, and a disk A The disc contact portion 42A that supports the rear end of the disc moves back and forth, and the disc contact portion 43A that supports the other side end of the disc A pivots. A load lever L (third disk holding portion) 43 is provided. Since the turning center of the disk contact portion 41A moves, the disk contact portion 41A does not perform an accurate turning operation.
As shown in FIG. 4, the slider mechanism 60 includes a fixed drive pinion 66, a movement drive pinion 67, a first loading slider 68, and a second loading slider 69. The fixed drive pinion 66 is connected to the gear group 62 and operates the first traverse slider 63 and the first loading slider 68. The first traverse slider 63 and the first loading slider 68 are disposed at positions facing each other across the fixed drive pinion 66. The movement drive pinion 67 is provided on the pinion base 70 and is gear-coupled to the first traverse slider 63 to operate the second loading slider 69. The second loading slider 69 is disposed at a position facing the first traverse slider 63 with the movement drive pinion 67 interposed therebetween.
The pinion base 70 is provided on the first loading slider 68 and operates together with the first loading slider 68.

FIGS. 5 to 10 show specific examples of the internal tray of the disk device in this embodiment, FIGS. 5 to 7 are plan views showing the insertion state of the large-diameter disk, and FIGS. 8 and 9 show the insertion state of the small-diameter disk. FIG. 10 is a perspective view.
First, the configuration of the internal tray will be described with reference to FIG.
The inner tray 40 includes a load link lever 44 that moves back and forth by a turning operation of the load lever R41, a load link arm 45 that is connected by a cam groove 44A and a cam pin 45A at the rear end of the load link lever 44, and one end side. Are provided with a link lever 46 connected to the cam pin 45B of the load link arm 45 by a cam groove 46A. A cam groove 46 </ b> B is provided on the other end side of the link lever 46. A disk contact portion 43A is provided on one end side of the load lever L43. The load lever L43 has a cam pin 43B on the other end side, and is connected to a cam groove 46B on the other end side of the link lever 46. The cam pin 45B turns around the pin 45C.
Further, the inner tray 40 has an escape groove 40A and cam grooves 40B and 40C. The relief groove 40A is provided on one end side of the link lever 46, and is formed so that the cam pin 45B of the load link arm 45 does not interfere. The cam groove 40B is provided on the other end side of the link lever 46, and the cam pin 43B of the load lever L43 slides. The cam pin 43C of the load lever L43 slides in the cam groove 40C.
The load lever R41 is pivoted around the pin 41Z located on the rear side of the shaft 41B, and is connected to the load link lever 44 by the pin 41C. That is, the rear side end portion of the load lever R41 slides on the outer diameter of the pin 41Z, and the pin 41C moves back and forth together with the load link lever 44. As a result, the disc contact portion 41A performs a general turning operation. The load link arm 45 pivots about the shaft 45C. The load link arm 45 has a large-diameter regulating pin 45D and a small-diameter regulating pin 45E. The large-diameter regulation pin 45D performs a disk holding operation when a large-diameter disk A is inserted, and the small-diameter regulation pin 45E performs a disk holding operation when a small-diameter disk B is inserted. It is. The link lever 46 has a guide groove 46C in the longitudinal direction, and the pin 40D of the internal tray 40 slides.

The inner tray 40 is provided with a set lever 47. The set lever 47 has a disk contact portion 47A on one end side and a shaft 47B on the other end side, and rotates around the shaft 47B.
Further, the inner tray 40 includes a detect swing lever 48 that is displaced by the back and forth movement of the load link lever 44, a detect lever 49 that moves back and forth together with the select lever 42, and a check slider 50. The detect lever 49 is formed with a groove 50A for receiving the convex portion 42B of the select lever 42. A first setting groove 50B serving as a first fixing position of the select lever 42 is provided at one end of the groove 50A, and a second setting groove 50C serving as a second fixing position of the select lever 42 is provided at the other end of the groove 50A. A Z-shaped groove is formed by the groove portion 50A, the first setting groove portion 50B, and the second setting groove portion 50C.

  An inner tray hook (not shown) is provided that operates when the check slider 50 moves to the rearmost side. The inner tray hook has a pin at one end with which the check slider 50 abuts, and is arranged so as to be rotatable by a predetermined angle around a fulcrum. The other end of the inner tray hook has a pin protruding to the back side. This pin is engaged with the groove on the base body 11 side shown in FIG. 1, and when the check lever 51 is rotated by the detect lever 49 pushed to the rear side by the check slider 50, the lock of the inner tray 40 is locked. The rear side movement of the check slider 50 is restricted. That is, the inner tray 40 is fixed on the base body 11 by the pin of the inner tray hook when not pressed by the detect lever 49, and the inner tray 40 is mounted on the base body 11 when pressed by the detect lever 49. The check slider 50 is restricted from moving on the internal tray 40.

Next, a large-diameter disc insertion operation will be described with reference to FIGS.
As shown in FIG. 1, when a disc is inserted from the disc insertion slot 14, the disc A first comes into contact with the disc contact portion 41A of the load lever R41, and then contacts the disc contact portion 42A of the select lever 42. Touch. When the disk A is further pushed in, as shown in FIG. 5, the select lever 42 is pushed to the rear side by the disk A, and the load lever R41 is pivoted around the pin 41Z on the rear side of the shaft 41B. The contact portion 41A rotates outward. The rotation of the load lever R41 moves the pin 41C to the front side, and the load link lever 44 also moves to the front side together with the pin 41C. As the load link lever 44 moves to the front side, the cam pin 45A of the load link arm 45 moves to the front side, and the cam pin 45B moves to the rear side. The link lever 46 moves to the load lever L43 side by the movement of the cam pin 45B. When the link lever 46 moves, the cam pin 43B of the load lever L43 slides in the cam groove 46B to move the load lever L43 to the front side. When the load lever L43 moves to the front side, the cam pin 43C moves in the cam groove 40C, and the lock of the load lever L43 is released.

  When the above operation is continued and the disc A is pushed in to the state shown in FIG. 6, the detection swing lever 48 is rotated by a predetermined angle by the movement of the load link lever 44 to the front side. By the rotation of the detect swing lever 48, the detect lever 49 is moved to the load lever L43 side (left side in the figure). As the detect lever 49 moves to the load lever L43 side, the convex portion 42B arranged in the first setting groove portion 50B moves to the groove portion 50A. Since the convex portion 42B is arranged in the groove portion 50A in this way, when the select lever 42 is pushed by the disk A, the convex portion 42B slides in the groove portion 50A to the rear side. In the state shown in FIG. 6, the disk A also contacts the disk contact portion 43A of the load lever L43, and the load lever L43 also starts rotating around the pin 43B in the cam groove 40B.

  When the disk A is pushed into the state shown in FIG. 7, the detect swing lever 48 continues to press the detect lever 49, so that the convex part 42B moves to the rear side end part of the groove part 50A. Thereafter, the rear side end portion of the detect lever 49 is moved to the load lever L43 side (left side in the drawing) by the inclined cam surface of the rear end portion of the inner tray 40, thereby being arranged in the second setting groove portion 50C. The When the disk A is pushed in, the check slider 50 moves to the rear side, and the cam on the rear side of the check slider 50 pushes the pin 45D of the load link arm 45 to turn the load link arm 45 counterclockwise and reverse Fix it so that it will not turn. As the load link lever 44 moves to the rear side, the pin 41C of the load lever 41 moves to the rear side and is fixed. At this time, since the rear side end portion of the load lever 41 is in contact with the pin 41Z, the disc contact portion 41A moves inward and is fixed, and the disc is held. FIG. 7 shows a state where the holding of the disk A in the internal tray 40 is completed.

Next, the small-diameter disc insertion operation will be described with reference to FIGS.
When the disc B is pushed in, the disc B comes into contact with the disc abutting portion 42A of the select lever 42 and the disc abutting portion 41A of the load lever R41 as in the case of the disc A, and when the disc A is further pushed in, FIG. As shown in FIG. 2, the select lever 42 is pushed to the rear side by the disk B, the load lever R41 pivots around the pin 41Z on the rear side of the shaft 41B, and the disk contact portion 41A is directed outward. Rotate. However, although the load lever R41 turns around the pin 41C, the load link lever 44 does not move to the front side because the turning amount is small. Since the load link lever 44 does not move to the front side, the load link arm 45 also does not rotate. Accordingly, the link lever 46 does not move. Since the link lever 46 does not move, the load lever L43 does not move, and the cam pin 43C is held in the locked state.

When the above operation is continued and the disk B is pushed into the state shown in FIG. 9, the check slider 50 moves to the rear side, and the cam on the rear side of the check slider 50 pushes the pin 45E of the load link arm 45 to load the load. The link arm 45 is pivoted counterclockwise and fixed so as not to rotate in the reverse direction. When the load link lever 44 moves to the rear side, the pin 41C of the load lever 41 moves to the rear side and is fixed, and the rear end of the load lever 41 contacts the pin 41Z and 41A moves inward. The disk B is fixed and the holding of the disk B to the internal tray is completed. Since the load link lever 44 does not move to the front side (move to the rear side), the detect swing lever 48 does not rotate, and the detect lever 49 is pressed to the load lever R41 side (right side in the figure). The convex portion 42B is held in the first setting groove portion 50B. FIG. 9 shows a state where the holding of the disk A on the internal tray 40 is completed, and the disk B is a disk contact part 41A of the load lever R41, a disk contact part 42A of the select lever 42, and a disk contact part of the load lever L43. It is held by the portion 43A.
In the state shown in FIG. 7 and the state shown in FIG. 9, the holding of the disk A on the inner tray 40 is completed and the inner tray hook is pressed by the detect lever 49 that is pushed to the rear side by the check slider 50. The inner tray hook is rotated by a predetermined angle. The inner tray 40 moves on the base body 11 by the rotation of the inner tray hook.

FIG. 11 to FIG. 17 show specific examples of the slider mechanism of the disk device in the present embodiment, FIG. 11 is a plan view of a main part showing a standby state, and FIG. 12 is a main part showing a movement completion state of the first loading slider. FIG. 13 is a plan view of relevant parts showing a state before completion of pulling, FIG. 14 is a plan view of relevant parts showing a state of completion of pulling, FIG. 15 is a plan view of relevant parts showing a state of completion of loading, and FIG. FIG. 17 is a plan view of a main part showing a state of completion of movement of one traverse slider, and FIG. 17 is a plan view of a main part showing a state of completion of ejection movement.
First, the configuration of the slider mechanism will be described with reference to FIG.
When the internal tray 40 is in front, the position of the detect lever with respect to the internal tray 40 is released, and the forward movement of the convex portion 69A pushes the detect lever forward, so that the internal tray 40 does not move and the detect lever moves forward. Move to. Along with this, the check lever and select lever also move forward. The rear loading end of the second loading slider 69 has a cam groove 69B.
The first switching lever 71 has a shaft 71A on one end side and cam pins 71B and 71C on the other end side. The first switching lever 71 rotates around the shaft 71A. The cam pin 71B slides in the cam groove 68A of the first loading slider 68, and the cam pin 71C slides in the cam groove 63A of the first traverse slider 63.
When the second switching lever 72 rotates counterclockwise, it first rotates about the shaft 72Z, rotates to a predetermined low position, then rotates about the shaft 72Y, and rotates clockwise. When turning, after turning around the shaft 72Y, turning around the shaft 72Z. The cam pin 72B slides in a cam groove 63B formed in the first traverse slider 63. The second switching lever 72 has cam pins 72C and 72D.
The gear group 62, the fixed drive pinion 66, the shaft 71A of the first switching lever 71, and the shaft 72A of the second switching lever 72 are fixed to the base body side member 11A. Further, the base main body side member 11A has an internal tray position detector 81, a load completion position detector 82, a standby detector 83 for detecting the standby position of the second loading slider 69, and the positions of the first loading slider 68. Eject position detectors 84 are provided for detecting. The base body side member 11 </ b> A is fixed to the base body 11.

Next, the operation of the slider mechanism will be described.
First, when the disc is held on the inner tray 40 and the inner tray 40 is pushed a predetermined distance toward the rear side with respect to the base body 11, the inner tray position detector 81 detects the completion of the disc holding, and the motor 61 Starts rotating.
When the motor 61 starts to rotate, the fixed drive pinion 66 in FIG. 11 rotates to move the first traverse slider 63 to the front side and the first loading slider 68 to the rear side. The moving drive pinion 67 moves to the rear side together with the first loading slider 68.
At this time, the movement drive pinion 67 rotates counterclockwise by the movement of the first traverse slider 63 to the front side. Due to the rotation of the movement drive pinion 67 due to the movement of the first traverse slider 63 and the rotation due to the movement of the movement drive pinion 67 itself, the second loading slider 69 moves to the rear side at a high speed (the movement speed of the first traverse slider 63). Move 3 times faster). The first loading slider 68 moves in the opposite direction at the same speed as the moving speed of the first traverse slider 63.

The first loading slider 68 is disengaged from the fixed drive pinion 66 before the movement is completed. The state in which the rack of the first loading slider 68 is detached from the fixed drive pinion 66 is the same as the state shown in FIG. At the timing when the rack of the first loading slider 68 is disengaged from the fixed drive pinion 66, the first switching lever 71 is rotated by the engagement between the cam pin 71C and the cam groove 63A of the first traverse slider 63, and the first switching lever 71 is rotated. The rotation of the switching lever 71 causes the cam pin 71B to slide in the cam groove 68B of the first loading slider 68, thereby moving the first loading slider 68 to the rear side. The end portion of the cam groove 68B has a cam shape in which the first loading slider 68 does not move due to the turning of the cam pin 71B. The first loading slider 68 can be fixed without variation at the stop position by the cam shape of the end portion of the cam groove 68B. Since the cam pin 71B is positioned at the end of the cam groove 68B, the movement of the first loading slider 68 is completed. FIG. 12 shows this state.
In the state shown in FIG. 12, the first traverse slider 63 is further moved by the fixed drive pinion 66, and the rotation of the movement drive pinion 67 is also continued. Accordingly, the second loading slider 69 further moves to the rear side at a relatively low speed (at the same speed as the moving speed of the first traverse slider 63).
When moving from the state shown in FIG. 12 to the state shown in FIG. 13, the cam pin 72B of the second switching lever 72 is moved by the cam groove 63B formed in the first traverse slider 63, and the second switching lever 72 rotates around a shaft 72Z on the front side of the shaft 72A, and the cam pin 72C of the second switching lever 72 engages with the cam groove 69B of the second loading slider 69.

As shown in FIG. 13, with the cam pin 72C of the second switching lever 72 and the cam groove 69B of the second loading slider 69 engaged, the cam pin 72B of the second switching lever 72 is in the first traverse direction. By further moving by the cam groove 63B formed in the slider 63, the center of the second switching lever 72 moves from the shaft 72Z to the shaft 72Y on the inner front side of the cam pin 72D, and further rotates around the shaft 72Y. To do. The rear shaft 72X of the cam pin 72D prevents the switching lever 72 from being displaced from the shaft 72Y when rotating about the shaft 72Y. By the rotation of the second switching lever 72, the second loading slider 69 further moves to the rear side. The end portion of the cam groove 69B has a cam shape in which the second loading slider 69 does not move due to the turning of the cam pin 72C. The second loading slider 69 can be fixed without variation at the stop position by the cam shape of the end portion of the cam groove 69B. When the cam pin 72C is positioned at the end of the cam groove 69B, the movement of the second loading slider 69 is completed. The second switching lever 72 is biased counterclockwise by a biasing spring (not shown), and maintains its position even when the cam pin 72B is separated from the cam groove 63B. From the state of FIG. 13 to the state of FIG. 14, the second loading slider 69 is separated from the movement drive pinion 67.
The movement of the internal tray 40 is completed in the state shown in FIG. From the state shown in FIG. 14 to the state shown in FIG. 15, the first traverse slider 63 continues to move by the fixed drive pinion 66. With this movement of the first traverse slider 63, the traverse base 20 causes the spindle motor 21 to be displaced between the base main body 11 and the lid 12 and completes the chucking of the disc.

The disc ejection operation is reversed from the state shown in FIG. 15 to the states shown in FIG. 14, FIG. 13, FIG. 12, and FIG.
That is, by rotating the motor 61 in the reverse direction, the first traverse slider 63 is moved to the rear side. In the state shown in FIGS. 15 to 14, the traverse base 20 is lowered by the movement of the first traverse slider 63 to the rear side.
In the state shown in FIGS. 14 to 13, the second loading slider 69 is engaged with the movement drive pinion 67 by the operation of the second switching lever 72.
In the state shown in FIGS. 13 to 12, the first loading slider 68 is engaged with the fixed drive pinion 66 by the operation of the first switching lever 71.
Further, by rotating the motor 61 in the reverse direction, in the state shown in FIG. 11, the first traverse slider 63 is separated from the fixed drive pinion 66 by the operation of the first switching lever 71, and the end portion of the cam groove Has a cam shape in which the first traverse slider 63 does not move by turning of the cam pin 71C. The first traverse slider 63 can be fixed without any variation in the stop position by the cam shape of the end portion of the cam groove. When the cam pin 71C is positioned at the end of the cam groove, the movement of the first traverse slider 63 to the rear side is completed.

FIG. 16 shows a state where the movement of the first traverse slider 63 is completed.
From the state shown in FIG. 16 to the state shown in FIG. 17, the fixed drive pinion 66 transmits the rotation only to the first loading slider 68. The movement drive pinion 67 moves to the front side together with the first loading slider 68. Due to the rotation of the movement drive pinion 67 itself, the second loading slider 69 moves to the front side at a relatively high speed (at twice the moving speed of the first traverse slider 63). When the eject position detector 84 detects the position of the first loading slider 68, the rotation of the motor 61 is stopped.
After the ejection is completed, the motor 61 is rotated in the normal direction to enter the standby state shown in FIG. This standby state is performed by detecting the standby position of the second loading slider 69 by the standby detector 83. The switch lever of the standby detector 83 is biased to the rear side. When the rear end of the switch lever is pushed to the front side by the second loading slider 69, it is pushed obliquely by the second loading slider 69 and then moves diagonally along the oblique cam wall of the frame. , Arranged next to the second loading slider 69. As a result, the second loading slider 69 can be moved further to the front side without moving the switch lever. When the second loading slider 69 moves to the rear side and comes close to the standby position, the switch lever becomes movable, and by the biasing force, moves to the diagonal rear side along the diagonal cam wall of the frame. It moves to the rear side together with the loading slider 69. When the second loading slider 69 comes to the standby position, the standby detector 83 detects the movement of the front part of the switch lever that is moving together, and detects the standby position.

The emergency eject is performed by pressing and moving the first traverse slider 63 from the state shown in FIG. 15 to the state shown in FIG.
When the loading slider is moved by moving the traverse slider 63, a portion that is moved at a triple speed is provided, so that the discharge from the standby position to the front side is realized by a slight movement of the traverse slider 63. At this time, the fixed drive gear 66 rotates in the reverse direction, and the motor gear portion can rotate in the reverse direction by the force from the output side.
At the time of emergency ejection, the first traverse slider 63 is pushed and moved further to the rear side from the position where the first traverse slider 63 is moved by the operation of the first switching lever 71 when the motor is driven. The switching lever 71 is further rotated, the first loading slider 68 is further moved to the front side, the second loading slider 69 is further moved to the front side, and the moving distance is increased.
In emergency eject, the loading slider is moved to the front side of the standby position. As a result, the internal tray 40 is disposed at the front position, the holding of the disk is released, and the select lever 42 is moved to a position on the internal tray 40 where the disk is slightly moved to the front side. At this time, the disc is urged to the front side by urging the select lever or the like to the front side, and when the frictional resistance of the disc movement is small, the disc is ejected to the eject position.

Next, the structure of the pinion base and the structure for preventing abnormal loads will be described with reference to FIG. FIG. 18 is a perspective view of a member showing a part of the slider mechanism according to the present embodiment.
Note that the side surface 70 </ b> C is preferably formed of an inclined surface. Further, the side surface 70 </ b> C may be a wall surface formed by a concave portion or a convex portion provided in the second loading slider 69.

The ejection operates from the state shown in FIG. 16 to the state shown in FIG. A case where a force for pushing the disk from the outside is applied during this operation, that is, when the disk is ejected will be described below.
At the time of ejection, the fixed drive pinion 66 transmits rotation only to the first loading slider 68, and the moving drive pinion 67 moves to the front side together with the first loading slider 68. The second loading slider 69 moves to the front side and the inner tray 40 moves to the front side together with the second loading slider 69 by the rotation of the movement drive pinion 67 itself.
During this operation, when a force for pushing the disc from the outside is applied, a load is applied to the second loading slider 69 via the internal tray 40 in the rear direction. Therefore, a load opposite to the load by the first loading slider 68 is applied from the second loading slider 69 to the movement drive pinion 67. At this time, a load is applied to the pinion base 70 on the rear side by the movement drive pinion 67. Therefore, when the load on the rear side becomes large, the hook 70B is first detached from the side surface 70, and then applied to the biasing spring 70A. Only when the load is applied and the load in the rear direction exceeds the force of the urging spring 70A, the pinion base 70 moves to the rear side. This movement of the pinion base 70 can prevent the members of the slider mechanism 60 from being overloaded and damaged.
When the external load is removed, the pinion base 70 is pulled back to the front side by the tensile force of the urging spring 70A, and the hook 70B is engaged with the inclined surface 70C again.

As described above, according to the present embodiment, the movement amount of the second loading slider 69 can be set to be three times as much as the movement amount of the first loading slider 68, and in a limited space. A large stroke can be secured.
In addition, according to the present embodiment, the first traverse slider 63, the first loading slider 68, and the second loading slider 69 are moved in the front-rear direction, so that a manual operation by a pushing operation from the front surface is performed. Can be realized.
Further, according to the present embodiment, the amount of movement of the second loading slider 69 can be increased by using the first traverse slider 63 also for the movement of the second loading slider 69.

  The present invention can be used for a disk device for recording or reproducing a disk-shaped recording medium such as a CD or a DVD.

1 is an external perspective view showing a chassis exterior of a disk device in one embodiment of the present invention. Conceptual configuration diagram showing the main part of the base body of the disk device Schematic configuration diagram showing the main part of the internal tray of the same disk device Schematic configuration diagram showing the main part of the drive unit of the disk device A plan view showing an insertion state of a large-diameter disc in the internal tray of the disc device A plan view showing an insertion state of a large-diameter disc in the internal tray of the disc device A plan view showing an insertion state of a large-diameter disc in the internal tray of the disc device A plan view showing an insertion state of a small-diameter disc in the internal tray of the disc device A plan view showing an insertion state of a small-diameter disc in the internal tray of the disc device A perspective view showing an internal tray of the same disk device Top view of the main part of the slider mechanism showing the standby state of the same disk device The principal part top view of the slider mechanism which shows the loading slider movement completion state of the disk apparatus The principal part top view of the slider mechanism which shows the state before the completion of drawing of the disc apparatus Top view of the main part of the slider mechanism showing the completion of pulling in the disk device Top view of the main part of the slider mechanism showing the loading completion state of the disk device The principal part top view of the slider mechanism which shows the 1st traverse slider movement completion state of the disc apparatus The principal part top view of the slider mechanism which shows the state of ejection movement completion of the disk apparatus The perspective view of the member which shows a part of slider mechanism of the disk apparatus

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Chassis exterior 11 Base main body 12 Cover body 14 Disc insertion opening 20 Traverse base 21 Spindle motor 22 Pickup 23 Drive means 40 Internal tray 41 Load lever R
41A, 42A Disc contact portion 42 Select lever 60 Slider mechanism

Claims (2)

A chassis exterior composed of a base body and a lid,
A disk insertion slot formed on the front surface of the chassis exterior;
A traverse base that is displaced between the base body and the lid;
An internal tray movable in the front-rear direction between the front side and the rear side of the chassis exterior;
A disk device provided with a slider mechanism for moving the internal tray,
The slider mechanism,
A first loading slider operated by a fixed drive pinion;
A pinion base connected to the first loading slider via biasing means;
A movable drive pinion provided on the pinion base;
A second loading slider operated by the movable drive pinion;
It consists of a gear group that transmits the rotation of the motor to the fixed drive pinion,
Engaging the inner tray with the second loading slider;
Urging the pinion base to the front side by the urging means;
During the ejecting operation, the fixed drive pinion transmits the rotation to the first loading slider, moves the movable drive pinion together with the first loading slider, and moves the second loading slider by the movable drive pinion. Moving the inner tray to the front side together with the second loading slider,
When a load on the rear side larger than the urging force of the urging means is applied to the internal tray during the ejection operation, the pinion base moves to the rear side with respect to the first loading slider. A disk device characterized by the above.   2. The disk apparatus according to claim 1, wherein the urging means is constituted by an urging spring using a coil spring and a hook that abuts against a side surface of the first loading slider.