JP2006040390A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device in which buffer members for absorbing vibration can be arranged at four corner position of a traverse assembly. <P>SOLUTION: An opening 2 is provided at a third gear 34 (drive force transmitting gear) constituting a drive force transmitting gear on a traverse assembly in the disk device 90, and a dumper 1 is arranged inside the the opening 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a disk device such as a CD or a DVD, for example, and in particular, a member for preventing vibration generated in a unit of a traverse assembly (frame body) that houses most of a drive mechanism such as a spindle motor. It is about.

In a general disk device, the main cause of sound skipping and image disturbance is considered to be vibration. Accordingly, various disk devices have been developed in which measures for preventing vibrations have been taken.

For example, as disclosed in Patent Document 1, a disk device having an optical pickup unit (OPU) and provided with cushioning members at four corners of a holding member (traverse assembly) that can be moved up and down for chucking and the like has been developed. Has been.

Certainly, as shown in the above-mentioned Patent Document 1, when buffer members are arranged at the four corners of the holding member, a clearance (clearance) is formed between the case body of the disk device and the holding member. ,
Since the buffer member is interposed, vibration can be efficiently absorbed by the rotation of the disk or the like. In other words, because the cushioning members are positioned at the four corners of the holding member, the holding member and the case are always in a dissociated state even if the above-described vibration occurs, so that sound skips and image disturbances due to vibration occur. Can be prevented.
JP 2003-22665 A

However, on the surface of the holding member, for example, a group of gears for transmitting a driving force used for movement such as regeneration of the OPU and for raising and lowering the holding member itself to the members (OPU, holding member, etc.). Is arranged. In such a gear group, if the number of parts is reduced, the size of each gear is increased. Further, when a plurality of members (for example, an OPU, a holding member, etc.) are moved by one drive motor, a complicated arrangement with a plurality of gears occurs.

Then, even if it is going to arrange a buffer member in four corners of a holding member, a gear and a plurality of gears which were enlarged in the four corners may be arranged, and the case where a buffer member cannot be arranged may arise. . If it does so, the position of a buffer member must be arrange | positioned unintentionally in places other than four corners of a holding member, and the problem that the effect of vibration absorption will fall arises.

Therefore, the present invention has been made in view of the above problems, and even when the gears are unavoidably disposed at the four corners of the holding member, the buffer members are disposed at the four corners. It is an object of the present invention to provide a disc device that can handle the above.

The present invention includes a loader chassis unit including a drive motor and a loader chassis on which the drive motor is mounted, a drive force transmission gear for transmitting a drive force from the drive motor, and is attached with one end of the loader chassis as a fulcrum. And a traverse assembly unit comprising a traverse assembly capable of moving up and down and reciprocating, wherein a disk member is provided on the traverse assembly and a circle surrounding the outer periphery of the buffer member A shaft boss protruding from above the traverse assembly is provided, and an opening is provided in the driving force transmission gear, and the opening and the shaft boss are fitted together.

According to this, since the buffer member (damper or the like) is provided inside the driving force transmission gear, the buffer member is located at the same position of the driving force transmission gear. Then, for example, a plurality of driving force transmission gears are provided in order to transmit the driving force of the driving force motor to each member (for example, an optical pickup unit, a disc tray, etc.). Even in a disk device in which a transmission gear is provided, a space for providing a buffer member (damper or the like) can be secured.

Therefore, for example, the position where the driving force transmission gear is provided is disposed at the end of the traverse assembly (for example, the side of the traverse assembly) or at least one of the corners of the traverse assembly. It does not matter even if it is arranged. Furthermore, the position where the driving force transmission gear is provided may be arranged at the end and corner of the traverse assembly.

This is because, even if the driving force transmission gear is disposed at the position as described above, according to the configuration of the present invention, the buffer member can be disposed without any problem. In other words, even at the corners (for example, four corners) of the traverse assembly where the vibration of the disk device can be efficiently absorbed,
A buffer member can be provided.

The present invention will be described in detail. A load motor chassis unit including a drive motor and a loader chassis on which the drive motor is mounted, a disk tray on which a disk is placed, and an optical pickup unit for irradiating the disk with light. And a traverse assembly that is mounted with the optical pickup unit, includes a driving force transmission gear that transmits the driving force from the driving motor, and is mounted with one end of the loader chassis as a fulcrum. A traverse assembly unit comprising: a traverse assembly unit configured to move the optical pickup unit toward the inner periphery of the disc based on the drive of the drive motor in the forward rotation direction; Lower the unit, and then While the disc tray is opened, the disc tray is closed based on driving in the reverse rotation direction of the drive motor, the traverse assembly unit is then lifted, and the optical pickup unit is moved to the outer periphery of the disc. In addition, a buffer member is provided at at least one of an end or a corner on the traverse assembly, and an annular shape that surrounds the outer periphery of the buffer member. A shaft boss protruding from the top is provided, an opening is provided in the driving force transmission gear, and the opening is fitted to the shaft boss.

The present invention provides a disk device in which shock-absorbing members can be disposed at the four corners even when gears must be disposed at the four corners of the traverse assembly.

An embodiment of the present invention will be described below with reference to the drawings.

2 to 6 show the disk device of the present invention. 6 is a perspective view of the disk device, and FIG. 4 is a schematic configuration diagram of the inside of the disk device as viewed from above. 5 is a schematic configuration diagram of the inside of the disk device as viewed from below, and FIG. 3 is a schematic configuration diagram in which the loader chassis and the traverse assembly shown in FIG. 4 are omitted. FIG. 2 is a schematic configuration diagram in which the traverse assembly unit is extracted from FIG.
<Overview of disk unit>
As shown in the perspective view of FIG. 6, the disk device 90 is configured such that the disk tray 10 is slidable on the outer housing 11.

As shown in the plan view of FIG. 4, the disk device 90 includes a disk tray 10 (for convenience, only the tray rack 13 and tray groove 12 are shown), a traverse assembly unit (TAU).
) 20 and a loader chassis unit (LCU) 40.
In the disk device 90, “the reciprocating movement of the disk tray 10”, “the reciprocating movement of the optical pickup unit (OPU) 22”, and the traverse assembly unit (TAU) by the driving force of one drive motor 43 (described later). 20 up and down movements ”can be performed.
<About disc tray>
As shown in FIG. 6, the disc tray 10 is used to place a disc, and enters and exits from a slit-shaped entrance / exit 11 b provided in the front panel 11 a of the exterior housing 11 ( Train [Loading] / Tray [
Unloading)).

In order to realize such a reciprocating movement, as shown in FIGS. 3 and 4 (for convenience, only the tray rack 13 and the tray groove 12 are shown), the disk tray 10 has a step-by-step switching mechanism. To the upper side of the disk tray 10 (the L-shaped long side is positioned at the long side of the disc tray 10 and the L-shaped short side is positioned at the short side of the disc tray 10). 12 and a tray rack 13 to which a driving force is transmitted from a gear tray 42 described later are provided in the longitudinal direction of the disc tray 10.

Hereinafter, the direction in which the front panel 11a is provided is referred to as the front side ("F").
The opposing direction is expressed as the rear side (“R”), and the direction perpendicular to the direction from the front side to the rib side is expressed as the side side (“S”) (illustrated).
About the traverse assembly unit
As shown in FIG. 4, the TAU 20 includes a traverse assembly 21, an OPU 22, a clutch gear 31, a plate trigger 23, a spindle motor 24, a traverse holder 25, and a driving force transmission gear group (described later). .

The traverse assembly 21 is a frame configured to mount the OPU 22, the spindle motor 24, the traverse holder 25, and the driving force transmission gear group. The traverse assembly 21 is screwed to one end on the rear side of a loader chassis 41 (described later).

Specifically, as shown in FIG. 5, the mounting hole provided in the traverse assembly 21
A floating rubber (damper) 1 having an opening through which a round boss provided in the loader chassis 41 can be inserted is interposed while covering the circumference (circumference) of the hole itself and both ends in the direction of the hole (mounting hole). (Inset). Then, the traverse assembly 21 is attached while inserting the attachment hole into the round boss, and the attachment hole and the round boss in both (the traverse assembly 21 and the loader chassis 41) are fixed with attachment screws.

In particular, the screw heads of the mounting screws and the loader chassis 41 are fixed so as to have a constant interval. Then, using this distance, it is possible to rotate around the mounting screw as a fulcrum, and when the disc is played (chucking), it moves up, otherwise (when not playing, etc.) ) Is designed to move downward.

The OPU 22 irradiates a disk with light (laser light or the like) to record or reproduce a signal, and is fixed to an OPU base 22b provided movably on shafts 22a and 22a provided on a traverse assembly. (It is supposed to be placed). Specifically, a semiconductor laser for emitting laser light, an objective lens for condensing the laser light on the recording surface of the disk, and a light receiving element for receiving the laser light reflected by the disk are mounted. Yes.

The OPU base 22b receives the driving force of a driving motor 43 (described later).
A PU rack 30 is provided. Specifically, the OPU rack 30 has an OPU at the top.
Main rack 30a to which driving force is transmitted to move 22 (OPU base 22b)
Is provided, and a coil spring is used to remove backlash at the lower portion so as not to cause a gap between the gear teeth of the first gear 32 (first B gear 32b) to be described later and the gear teeth of the main rack 30a. A sub-rack 30b is provided.

That is, the OPU rack 30 is a double rack in which the main rack 30a and the subrack 30b are overlapped. However, the gear teeth on the subrack 30b are the main rack 30.
Since the first gear (the first B gear 32b) and the "main rack 30a / subrack 30b" mesh with each other, the first gear (the first B gear 32b) overlaps with the gear teeth of a.
There is a case where the gear 32 and the “subrack 30b” mesh with each other.

The sub-rack 30b has a clutch gear 31 (described later) at a position close to the disk.
Is provided with an OPU clutch rack 30c. The moving direction of the OPU 22 is the same as the moving direction of the disc tray 10 (reciprocating movement between the front side and the rear side).

The clutch gear 31 moves the plate trigger 23 in conjunction with the movement of the OPU rack 30. Specifically, the α gear 31a meshing with the OPU clutch rack 30C
And a β gear 31b meshing with a gear (PT gear 23a) provided on the plate trigger 23
And is pivotally supported on the traverse assembly 21 so as to be rotatable.

Note that the gear teeth of the OPU rack 30 (main rack 30a / subrack 30b) and the first B gear 32b of the first gear 32 may or may not mesh with each other as the clutch gear 31 rotates. It has become.

The plate trigger 23 is a PT gear 23a that meshes with the β gear 31b of the clutch gear 31.
And a connecting boss 23 that fits in a connecting groove (not shown) of a cam slider 44 (described later).
This is a member having b. Then, on the traverse assembly 21 so as to be able to reciprocate in the side direction (perpendicular to the moving direction of the disc tray) according to the clutch gear 31 that rotates (links) according to the movement of the OPU rack 30. Is attached.

The spindle motor 24 is a motor that rotates the chucked disk. The operation of raising and lowering the traverse assembly 21 (TAU 20) mounted on the spindle motor 24 for chucking (for disk reproduction or the like) will be described later.

The traverse holder 25 is a power transmission member attached to an end portion of the traverse assembly 21 (specifically, an end portion on the front side). The traverse holder 25 is provided with a boss (T boss 25a) that is a cylindrical projection projecting toward the front side, and this is a cam groove (not shown) of a cam slider 44 (described later). (Shown). Therefore, as the cam slider 44 moves, the T boss 25a moves (interlocks) along the cam groove, and the TAU 20 moves up and down in conjunction with this movement.

The driving force transmission gear group (the first gear 32, the second gear 33, and the third gear 34) transmits the driving force from the driving motor (DC motor) 43 provided in the LCU 40 for the reciprocating movement of the OPC 22. A gear or a gear that is transmitted to move the cam slider 44.

Specifically, the first gear 32, the second gear 33, and the third gear 34 are pivotally supported by the traverse assembly 21.

The first gear (driving force transmission gear) 32 is a worm gear 43a of a driving motor 43 described later.
The first A gear 32a to which the driving force is transmitted via the first A gear 32a, the first B gear 32b that is provided above the first A gear 32a and transmits the driving force to the OPU rack 30, and the first B gear 32 is provided above the first B gear. The first gear 32C is configured to transmit a driving force to the second gear 33. That is, the first A gear 32a, the first B gear 32b, and the first C gear 32c are arranged in this order from the loader chassis 41 side, and are supported on the traverse assembly 21.

The second gear (driving force transmission gear) 33 is a gear that transmits the driving force from the first C gear 32 of the first gear 32, and is supported on the traverse assembly 21.

The third gear (driving force transmission gear) 34 is a gear to which the driving force is transmitted from the second gear 33 and is pivotally supported on the traverse assembly 21.
<About the loader chassis unit>
The LCU 40 includes a loader chassis (main body chassis) 41, a gear tray 42, a drive motor 43, and a cam slider 44. As shown in FIG. 4, the loader chassis 41 is a main body chassis that houses the TAU 20. And the drive motor 43
And the cam slider 44 are mounted.

The gear tray 42 is a gear that transmits a driving force from a driving force transmission gear group, and is supported on the loader chassis 41. Specifically, the gear tray A gear 42 a that transmits the driving force from the third gear 34 and the gear tray B gear 42 b that transmits the driving force to the cam slider 44 are configured. The gear tray B gear 42b is provided with a partially missing portion (intermittent portion; not shown) in the axial direction, and is designed to be engaged with the third gear 34 or not. Yes.

The drive motor 43 is a power source for reciprocating the OPU 22 and reciprocating the cam slider 44. A worm gear 43a is provided on the output shaft of the drive motor 43 so as to transmit the drive force to the drive force transmission gear group.

The cam slider 44 is a connection groove (not shown) with which the connection boss of the plate trigger 23 is engaged.
, Including standing bosses 44 b and 44 b that engage with the tray grooves 12 and 12 of the disc tray 10, cam grooves (not shown) that engage with the T bosses 25 a of the traverse holder 25, and a cam slider rack 44 c that meshes with the gear tray 42. It is configured as follows.

The cam slider 44 is fitted into a groove rail (not shown) provided in a direction perpendicular to the moving direction of the disk tray 10 on the front plane of the loader chassis 41, and reciprocates along the groove rail. It can be moved. Specifically, the cam slider rack 44c that meshes with the gear tray 42 receives the driving force of the driving motor 43 via the driving force transmission gear group, and the cam slider 44 is moved to the groove rail of the loader chassis 41 by this driving force. It can be reciprocated along.

The cam groove has two opening grooves (upper opening groove and lower opening groove) that become horizontal slits at each of the upper and lower sides (both ends) in the vertical direction, and an inclined opening groove that connects them. It is composed of Then, the T boss 25a of the traverse holder 25 is inserted into this cam groove, and when the cam slider 44 moves so that the T boss 25a is positioned in the upper opening groove, the traverse holder 25 (and thus TAU 20) is raised and lowered. When the T boss 25a is moved to the side opening groove, the traverse holder 25 is lowered.
<About movement of each member>
Here, the movement (operation) in each member (OPU22 / TAU20 / disc tray 10) will be briefly described.
《About moving OPU》
First, the movement of the OPU 22 in the disk device 90 will be described. For example, when the user finishes playing a disc such as a DVD and tries to remove the disc from the disc device 90 (that is, when the disc tray 10 is to be opened), an open / close button provided on the outer housing 11 is pressed. Push.

Then First, rotation of the drive motor; with the (rotation of the forward rotation direction rotation A ₁ direction), the worm gear 43a is also rotated. The first gear 32 (first 1A gear 32a) engaged with the worm gear 43a is also to rotate in the _{B 1} direction. Then, OPU rack 30 which meshes with the 1B gear 32b of the first gear 32 is a front direction (the inner circumference of the disk; _{C 1} direction) to move to. Then, the OPU base 22 to which the OPU rack 30 is attached.
b also moves, and as a result, the OPU 22 moves in the front direction (the inner circumferential direction of the disc).

The first C gear 32c and the second gear 33, and the second gear 33 and the third gear 34
Since the first gear 32, the second gear 33, and the third gear 34 are always meshed with each other, the driving force of the driving motor 43 is always transmitted. However, when the OPU 22 moves, the third gear 34 is positioned at the intermittent portion of the gear tray 42. Therefore, the driving force is not transmitted to the gear tray 42 via the third gear 34, and the TAU 20
And the disc tray 10 are not moved.
<Switching from OPU movement to traverse assembly unit movement>
As described above, even after the OPU 22 reaches the inner circumferential position of the disk, when the drive motor 43 further rotates, the main rack 30a and the sub-rack 30b engaged with the first B gear 32b are extended to the rear side. Only the sub-rack 30b meshes with the first B gear 32b.

Then, the subrack 30b moves further to the inner peripheral side. Therefore, the OPU clutch rack 30C provided on the subrack 30b is connected to the α gear 31 of the clutch gear 31.
While proceeding to mesh with a, it further proceeds in the front direction. Then, the main rack 30a is completely dissociated from the first B gear 32b (the meshing is released), and O
The PU 22 is stopped at the inner peripheral position of the disk. In addition, this subrack 30b
With the movement of the clutch, the clutch gear 31 rotates and engages with the β gear 31b.
Plate trigger 23 having a gear 23a is slidingly _{(D 1} direction in the slide).
<< TAU movement (descent) >>
On the other hand, in accordance with the movement of the subrack 30b (in conjunction) to the plate trigger 23 to move to the D ₁ direction, connecting boss 23b is provided, the connecting boss 23b is fitted in the coupling groove of the cam slider 44 ing. Therefore, some cam slider 44 in conjunction with the movement of the plate trigger 23 and moves (slides) to the E ₁ direction. Then, move the cam slider rack 44c of the cam slider 44 also into _{E 1} direction.

With such a cam slider rack 44c moves in the E ₁ direction, the gear tray 42 meshed with the cam slider rack 44c rotates to F ₁ direction. Then, the position of the intermittent part provided in the gear tray 42 changes, and the gear drive 34 and the gear drive 34 come to mesh with each other. When the meshing is thus established, the driving force of the driving motor 43 is transmitted to the cam slider rack 44 c and eventually the cam slider 44 via the gear tray 42.

Therefore, the cam slider 44, by the driving force of the driving motor 43, will be moved to the more E ₁ direction. Since the T boss 25a of the traverse holder 25 is fitted in the cam groove 45 of the cam slider 44, the T boss 25a is formed into an upper opening groove and an inclination along with the movement of the cam slider 44. It moves in the order of the opening groove and the lower opening groove. Then, with the movement of the T boss 25a, the traverse holder 25 comes to fall into G ₁ direction (see FIG. 1). As a result, the traverse assembly 21 to which the traverse holder 25 is attached, and thus the TAU 20 is lowered.
<Switching from TAU movement to disk tray movement>
As described above, when the TAU 20 descends and the drive motor 43 further rotates, the cam slider 44 slides further in the E1 direction. Therefore, so that the standing boss 44b, 44b engaged with the tray grooves 12, 12 of the disc tray 10 also moves to _{E 1} direction. As a result, the standing boss 44b is bent in a stepwise manner and is on the “L” shape.
It comes to be located in the long part of 2.12. Therefore, standing bosses 44b and 44b
Disc tray 10 is the H ₁ direction (front direction), so to move slightly in the transfer process.

As a result, the tray rack 13 also moves in H ₁ direction, so mesh with the gear tray 42. It is designed so that the engagement between the cam slider 44 and the gear tray 42 is released simultaneously with the engagement between the tray rack 13 and the gear tray 42.
<About moving the disc tray (tray open)>
As described above, when the tray rack 13 and the gear tray 42 are engaged, so that the tray rack 13 with the rotation of the direction F1 of the gear tray 42 also moves in H ₁ direction. That is, the disc tray 10 moves to the front side and starts an opening operation.

As described above, in the disk device 90 of the present invention, three operations of “OPU operation”, “TAU operation”, and “disc tray operation” are made possible by the rotation of one drive motor 43.

In the above description, the operations related to “movement of the OPU to the inner circumference of the disk”, “descent of TAU”, and “opening of the disk tray” have been described. However, by rotating the drive motor 43 in the reverse rotation direction, the rotation and movement in the reverse direction of a ₂ to H ₂ direction to a ₁ to H ₁ direction, also operating according to the "movement to the disk outer periphery of the OPU", "increase in the TAU", "close the disc tray" It is possible. Further, the OPU 22 is locked at the same time as reaching the inner circumference of the disk, and does not fluctuate while the TAU 20 is descending.
Is raised, and the lock is released as soon as the rise is completed.
<Characteristic configuration and effect of the present invention>
In the disk device 90 as described above, a plurality of members are moved by one drive motor 43 (
2, as shown in FIG. 2, as shown in FIG. 2, an end (for example, the vicinity of the longitudinal and short sides of the traverse assembly 21) or corner (for example, the traverse assembly 21) on the traverse assembly 21.
There may be a case where a driving force transmission gear group has to be disposed in the upper four corners).

However, in the present invention, as shown in FIG. 2, an opening (bearing opening 2) is provided at the center of the third gear 34 located at one of the four corners (four corners) of the traverse assembly 21. The damper 1 is arranged inside.

Specifically, as shown in FIG. 1 (schematic cross-sectional view taken along the line AA ′ in FIG. 2), an annular shape having a damper opening 3 on the traverse assembly 21, and from the traverse assembly 21. A protruding (projecting) shaft boss 4 is provided. Further, a locking portion 5 that protrudes from the inner diameter of the damper opening 3 is provided inside the shaft boss 4. A bearing opening 2 having the same size as the outer diameter of the shaft boss 4 is provided in the third gear 34 so that the third gear 34 is fitted into the shaft boss 4 and the damper 1 is engaged with the locking portion 5. To be locked.

Specifically, the damper 1 has a cylindrical shape having substantially the same diameter as the inner diameter of the damper opening 3. Further, the damper 1 has a cylindrical axis direction (the same direction as the axial direction of the shaft boss 4).
Has an opening (D opening 1a), and an outer diameter groove 1b into which the engaging portion 5 fits is engraved on the outer peripheral portion. Therefore, it is locked by the locking part 5 as described above.

In the present invention, a round boss (TH round boss 25c) having a screw hole 25b provided on the traverse holder 25 is adapted to fit into the D opening 1a. The damper 1, the traverse assembly 21, and the traverse holder 25 are fixed to each other by screwing a fixing screw (not shown) into the screw hole 25b.

In other words, in the present invention, the damper 1 is provided on the traverse assembly 21, and is annular so as to surround the outer periphery of the damper 1 (with the damper opening 3), and protrudes from the traverse assembly 21. The shaft boss 4 is provided, and the opening 2 is provided in the third gear 34 which is one of the driving force transmission gear groups, and the opening 2 and the shaft boss 4 are fitted together.

With such a configuration, it is difficult for the damper 1 to transmit the vibration of the traverse holder 25 to the traverse assembly 21 even when the TAU 20 moves up and down in conjunction with the operation of the traverse holder 25. Further, vibration itself (vertical vibration or lateral vibration) generated in the case of disk reproduction or the like can be absorbed by the damper 1.

Even when the gears are forced to be arranged at the four corners and ends of the traverse assembly 21, the damper 1 is placed at the four corners and ends (at least one of the four corners and ends). Since it can be disposed, the disk device 90 can efficiently absorb vibrations.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, the damper 1 may be provided at a position other than the position of the third gear 34, that is, the first gear 32 or the second gear 33. In the above description, the traverse holder 25 and the traverse assembly 21 are connected to each other with the fixing screw via the damper 1. However, while the traverse holder 25 is separately screwed and fixed at another location of the traverse assembly 21, the damper 1 may be interposed inside the third gear 34 (that is, the traverse holder 25 and the traverse holder 25). Even if the traverse assembly 21 is not connected via the damper 1), a certain vibration suppressing effect is exhibited.

The arrangement of the driving force transmission gear group as shown in FIGS. 3 and 4 is an example, and various arrangements are conceivable. However, if the dampers are arranged inside the gear as in the present invention, the dampers can be arranged at the four corners and end portions of the traverse assembly even in various arrangements.

  The present invention is useful for disk devices such as CDs and DVDs.

FIG. 3 is a schematic sectional view taken along the line A-A ′ of FIG. FIG. 5 is a schematic configuration diagram in which a traverse assembly unit is partially extracted from FIGS. 4 to 4 described later. It is the schematic block diagram which abbreviate | omitted the loader chassis and traverse assembly shown in below-mentioned FIG. It is a schematic block diagram inside the disc apparatus of this invention seen from the top. It is a schematic block diagram inside the disc apparatus of this invention seen from the downward direction. It is a perspective view of the disc apparatus of this invention.

Explanation of symbols

1 Damper (buffer member)
10 Disc tray 20 Traverse assembly unit 21 Traverse assembly 22 Optical pickup unit (OPU)
32 1st gear (drive force transmission gear)
33 Second gear (driving force transmission gear)
34 Third gear (driving force transmission gear)
40 Loader Chassis Unit 41 Loader Chassis 42 Gear Tray 43 Drive Motor 90 Disk Device

Claims (3)

A loader chassis unit comprising a drive motor and a loader chassis on which the drive motor is mounted;
A disc tray on which the disc is placed;
An optical pickup unit for irradiating light to the disk, and a driving force transmission gear for mounting the optical pickup unit and transmitting a driving force from the driving motor, and attached with one end of the loader chassis as a fulcrum Being
A traverse assembly unit comprising a traverse assembly capable of moving up and down and reciprocating;
In the disk device including
Based on the drive in the forward rotation direction of the drive motor, the optical pickup unit is moved to the inner periphery of the disk, then the traverse assembly unit is lowered, and further, the disk tray is opened,
Based on driving in the reverse rotation direction of the drive motor, the disc tray is closed, the traverse assembly unit is then lifted, and the optical pickup unit is moved to the outer periphery of the disc. And
In addition, a buffer member is provided at at least one of an end or a corner on the traverse assembly, and an annular boss that surrounds the outer periphery of the buffer member, and a shaft boss protruding from the traverse assembly is provided,
Furthermore, an opening is provided in the driving force transmission gear, and the opening and the shaft boss are fitted together. A loader chassis unit comprising a drive motor and a loader chassis on which the drive motor is mounted;
A traverse assembly unit comprising a traverse assembly capable of moving up and down and reciprocating by being provided with a drive force transmission gear for transmitting the drive force from the drive motor and being attached with one end of the loader chassis as a fulcrum,
In the disk device including
Provided with a buffer member on the traverse assembly, provided with an annular boss that surrounds the outer periphery of the buffer member, and provided with a shaft boss protruding from the traverse assembly,
Furthermore, an opening is provided in the driving force transmission gear, and the opening and the shaft boss are fitted together. 3. The disk apparatus according to claim 2, wherein the driving force transmission gear is disposed at at least one of an end portion or a corner portion of the traverse assembly.

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