JP2624184B2 - Disk drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive device having a head driven by a linear motor, for example, provided in a compact disk player.

[0002]

2. Description of the Related Art For example, in a disk drive device of a compact disk player, there is one in which an optical head is driven by a linear motor. In the disk drive device having the linear motor feed head, the head is movable when the linear motor is not energized, and the moving end may collide with the yoke of the linear motor at the moving end during transportation, and may be damaged. There is provided a lock mechanism for immovably locking the lock.

A conventional apparatus of this type is disclosed in, for example, Japanese Utility Model Laid-Open No. 62-924. That is, the apparatus includes a cartridge tray provided with an unlocking piece, a head driven by a linear motor, and a lock member biased to lock the head. The tray is lowered, and the unlocking piece presses the locking member, whereby the locking member is retracted against the urging force to unlock the head.

[0004]

BRIEF Problems to be Solved by the configuration of the thus Upon insertion of the disc cartridge conventional apparatus in which the head of the lock Ru is canceled, for example, such co-down compact disc player, placing the disc into the mounting plate disc When applied to a disk drive device that is placed and moved to the drive unit by electric means to perform loading, when the disk mounting plate is inserted into the housing, the lock of the head by the lock member is released. For this reason, the head unnecessarily moves during transportation and the like, collides with the moving end and is damaged. Therefore, the lock mechanism used in this conventional apparatus is a compact mechanism for taking the disk mounting plate in and out of the housing. Not applicable to disc players.

[0005] The present invention has been made in view of such a point,
It is an object of the present invention to provide a disk drive device in which a lock of a head is maintained even when a disk mounting plate is inserted into a housing.

In order to achieve the above object, the apparatus of the present invention comprises a disk mounting plate which is moved between a draw-out position and a storage position with respect to a housing, a spindle motor for rotating and driving the disk, and a disk drive for rotating the disk. A linear motor for moving the head in the radial direction is provided, and a movable chassis provided movably with respect to the fixed chassis, and a disk mounting plate is moved between an extraction position and a storage position, and a disk is mounted. A drive mechanism that moves the movable chassis up and down between the raised position and the lowered position with respect to the fixed chassis when the plate reaches the storage position, and engages with the head when the movable chassis is at the lowered position to set the head to a predetermined position. A lock mechanism that locks at the position, and when the movable chassis is at the raised position, the engagement with the head is released to unlock the head.
The drive mechanism moves the disk mounting plate from the withdrawal position to the storage position, and after reaching the storage position, raises the movable chassis to the raised position, whereby the engagement between the lock mechanism and the head is released, and the head is locked. When the movable chassis is released to the lowered position, the locking mechanism engages with the head to lock the head at a predetermined position.

[0007]

In the disk drive apparatus of the present invention as described above, the movable chassis can be set at the lowered position and the head is locked even if the disk mounting plate is in the storage position. By transporting the drive device, the head does not move unexpectedly during transportation, and it is possible to prevent the head from being damaged.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, 1 is a disk drive device as a whole according to the present invention, 2 is a mechanical chassis in which its mechanical components are formed, and this mechanical chassis 2 is mounted on a disk player housing (not shown) via legs 3. Fixedly supported.

Reference numeral 4 denotes a disk mounting plate, 4a denotes a circular concave portion on which the disk is mounted and supported, 4b denotes an insertion opening into which an optical head and a turntable to be described later are inserted, and the disk mounting plate 4 is mechanical. It is slidably movable in the front-rear direction with respect to the chassis 2, that is, supported so as to be able to enter and exit the casing of the disc player. That is, bearing members 5 and 6 are fixed to one end of the upper surface of the mechanical chassis 2 at predetermined intervals in the front and rear direction, and the slider rod 7 slides in the bearing holes 5a and 6a of the bearing members 5 and 6 in the front and rear direction. The slider rod 7 is freely inserted and supported.
The disc mounting plate 4 is supported movably in the front-rear direction with respect to the mechanical chassis 2 by connecting and fixing the front and rear portions of the disc mounting plate.

Reference numeral 8 denotes a base unit as a movable chassis on which an optical head and the like are mounted. The base unit 8 is supported by an opening 9 formed in the mechanical chassis 2 so as to be able to move up and down. This base unit 8
The base unit mounting chassis 8a has a shape slightly larger than the opening 9 and a board 8b supported by the chassis 8a. Various driving parts are arranged on the board 8b.

That is, a slider 11 is slidably supported in the front-rear direction along a guide shaft 10 provided on one side of the substrate 8b, and an optical head 12 is fixed on the slider 11. A linear motor 13 is formed between the slider 11 and the substrate 8b. The linear motor 13 includes a yoke 13a fixed to a substrate 8b and a coil bobbin 13b fixed to a slider 11. And
A magnet 13c is attached to the yoke 13a so as to face the moving coil bobbin 13b, and the optical head 12 is moved by the linear motor 13 in the front-rear direction, that is, in the radial direction of the disk.

Further, a spindle motor 14 is disposed on the substrate 8b at a position forward of the front end position of the slider 11, and a drive shaft 14a of the spindle motor 14 has
A turntable 15 for holding the center hole of the disk is mounted.

The board 8b on which the various driving components are supported is supported by the base unit mounting chassis 8a at four corners of the board 8b in a floating state by the mounting member 16 having the coil spring 16a as a buffer member interposed therebetween.

The base unit mounting chassis 8
Shafts 17 project from the right and left sides of the rear end of the a. On the other hand, bearings 18 are provided on the lower surface of the mechanical chassis 2 behind the openings 9 corresponding to the shafts 17. By pivotally supporting the shaft portion 17 on the bearing portion 18, the base unit 8 can be moved up and down on the lower surface side of the mechanical chassis 2 in correspondence with the opening portion 9, that is, the base unit 8 rotates vertically about the pivotal support portion. (Swing) Freely supported.

At the free end of the base unit 8, that is, at the front surface of the base unit mounting chassis 8a, an engaging pin 19 is protruded and a roller 19a is loosely inserted. Engaged with the cam member of
The rotation of the base unit 8 is performed by the operation of the cam member.

The base unit 8 is provided with a lock mechanism 20 for preventing the optical head 12 from moving during transportation of the disc player or the like. That is, an engagement concave portion 21 is provided at a predetermined position on one side of the slider 11, while an engagement recess 21 is provided at one end of the base unit mounting chassis 8a when the slider 11 is at the frontmost position. At the corresponding position, a hook-shaped lock arm 22 is provided.
Are rotatably supported by a support shaft 23 in the inward and outward directions, that is, in the direction orthogonal to the moving direction of the slider 11.

The base of the lock arm 22 extends outward at a right angle to form an operating piece 22a.
The tip portion is further bent upward in an L-shape to correspond to the lower surface of the mechanical chassis 2. A pressing piece 24 having elasticity is protruded from the lower surface of the mechanical chassis 2, and the distal end thereof is bent inwardly in an L-shape to correspond to the lower surface of the operating piece 22 a of the lock arm 22. . A relief recess 25 is formed at the edge of the opening 9 of the mechanical chassis 2 at a position corresponding to the lock arm 22 so that the lock arm 22 does not come into contact with the mechanical chassis 2 during the upright rotation. Has been established.

When the base unit 8 is at the lowered position, the distal end of the pressing piece 24 of the mechanical chassis 2 comes into contact with the lower surface of the operating piece 22a and elastically presses it. The optical head 12 is locked immovably (FIG. 6).
A). Further, when the base unit 8 is raised, the tip of the action piece 22a abuts against the lower surface of the mechanical chassis 2, so that the lock arm 22 rises and turns so as to be disengaged from the engagement recess 21 of the slider 11, Thereby, the lock of the optical head 12 is released (FIG. 6B). Note that the lock arm 22 may be biased in a direction in which the lock arm 22 is always engaged with the engagement concave portion 21 by the spring member.

As described above, the disc mounting plate 4 is supported movably in the front-rear direction, and the base unit 8
The moving operation of the disc mounting plate 4 and the base unit 8
There is provided a drive mechanism for performing the lifting operation.

This drive mechanism is configured as follows. 27
Is a motor fixed to the lower surface side of the mechanical chassis 2, and a drive shaft 27a of the motor 27 projects to the upper surface side, and a pulley 28 is attached to a tip end thereof.

At a position separated from the motor 27, the shaft 29 penetrates through the upper and lower surfaces of the mechanical chassis 2.
A rocking arm 30 is pivotally supported on the shaft 29 on the upper surface side of the mechanical chassis 2 so as to be rotatable in the horizontal direction. A planetary gear mechanism 31 is provided on the rocking arm 30. Have been.

The planetary gear mechanism 31 includes a sun gear 32
, A planet gear 33, and a counter gear 34 disposed between the sun gear 32 and the planet gear 33. The sun gear 32 is pivotally supported on a shaft 29, and the planet gear 33 and the counter gear 34 are connected to the swing arm 30. It is pivotally supported by the standing support shafts 35 and 36, respectively.

The sun gear 32 integrally includes a gear portion 32a and a pulley portion 32b having a larger diameter than the gear portion 32a. A belt 37 is provided between the pulley portion 32b and the pulley 28 of the motor 27. It is stretched. The planet gear 33 has a large-diameter gear portion 33a and a small-diameter gear portion 33b integrally formed. The small-diameter gear portion 33b is configured to mesh with a rack described later. A columnar projection 33c is formed at the center of the upper surface. The counter gear 34 has a large-diameter gear portion 34a and a small-diameter gear portion 34b integrally. The large-diameter gear portion 34b is in the gear portion 32a of the sun gear 32, and the small-diameter gear portion 34b is in the large-diameter gear portion 33a of the planet gear 33. The sun gear 32 is rotated by the counter gear 3
4, and is transmitted to the planet gear 33,
The planet gear 33 is configured to rotate in the same direction as the sun gear 32.

The free end of the swing arm 30 has a projection 3
0a is formed, and the swing arm 30
In the state where is rotated to the end, this protruding piece 30a
The drive of the motor 27 is stopped by contacting a stop switch 38 provided at a predetermined position of the mechanical chassis 2.

The mechanical chassis 2 is mounted on the shaft 29.
The cylindrical cam member 39 is provided on the lower surface side of the swing arm 3.
It is rotatably supported corresponding to 0. A cam groove 40 is formed on the outer periphery of the cam member 39.
0 is the lower horizontal portion 40a, the inclined portion 40b, and the upper horizontal portion 40c.
Are formed continuously. An engaging pin 19 protruding from the front surface of the base unit mounting chassis 8a is engaged in the cam groove 40 via a roller 19a.

The cylindrical cam member 39 is mounted on the swing arm 3.
0, that is, an engaging piece 41 protrudes from a predetermined portion of the swing arm 30, and this engaging piece 41 is bent downward to form a through hole of the mechanical chassis 2. It projects to the lower surface side via 42, and its tip end is engaged with an engaging portion 43 provided on the upper part of the cam member 39. Thus, the cam member 39 is rotated integrally with the rotation of the swing arm 30.

The cam member 39 is slightly slidable in the axial direction with respect to the shaft 29, and a concave portion 44 formed at the center of the lower surface end thereof and the retaining ring 4 fitted to the lower end of the shaft 29.
A coil spring 46 is interposed between the cam member 39 and the cam member 39. The cam member 39 is always urged upward by the elastic biasing force of the coil spring 46.

On the back surface of the disk mounting plate 4, a rack 47 that meshes with the planet gear 33 of the planetary gear mechanism 31 is formed. The rack 47 includes a linear rack portion 48 linearly provided along the moving direction of the disk mounting plate 4, that is, the front-rear direction, and a disk mounting plate 4 continuous with a front portion of the linear rack portion 48. The arc-shaped rack portion 49 is formed on the front side with the teeth inward, and the arc-shaped rack portion 49 further includes a brake zone 49a used for decelerating the disk mounting plate 4 as described later, The brake zone 49a and the chucking zone 49b are formed in different circular arcs.

That is, the linear rack portion 4 of the rack 47
8 is formed so that the small-diameter gear portion 33b of the planet gear 33 of the planetary gear mechanism 31 is meshed on the rear side with respect to the center line a passing through the rotation center of the swing arm 30 and the rotation center of the planet gear 33. Further, the chucking zone 49b of the arc-shaped rack portion 49 is formed in a true arc shape in which the small-diameter gear portion 33b of the planet gear 33 is engaged with the center line a, and the brake zone 49a is formed in a straight line with the chucking zone 49b. It is formed in a shape of an arc so as to gradually decrease in diameter toward the deformed arc connecting the linear rack portion 48, that is, the straight rack portion 48.

A guide groove 50 is formed on the back side of the disk mounting plate 4 so as to correspond to the rack 47 and extends parallel to the rack 47. The guide groove 50 has a convex portion of the planet gear 33. 33c is engaged. When the swing arm 30 is guided along the guide groove 50, the planet gear 33, that is, the small-diameter gear portion 33b
And the rack 47 is reliably held engaged.

Further, on the back side of the disk mounting plate 4, a protruding piece 51 is provided at a predetermined rear portion thereof, and when the disk mounting plate 4 is moved to the foremost end position, as will be described later, this protrusion is provided. The drive of the motor 27 is stopped when the piece 51 comes into contact with a stop switch 52 provided at a predetermined position of the mechanical chassis 2.

A support plate 53 is fixed to the mechanical chassis 2 so as to straddle the disk mounting plate 4, and a magnet is provided at the center of the support plate 53 in correspondence with the turntable 15 of the base unit 8. The chucking member 54 is attached so as to be rotatable in the horizontal direction and to be able to move up and down.

Next, the operation of the apparatus of this embodiment configured as described above will be described. Now, when the disk mounting plate 4 is at the forefront position, that is, at a position where the disk can be pulled out from the disk player and the disk can be mounted, the planet gear 33 of the planetary gear mechanism 31 is attached to the rearmost end of the linear rack portion 48 as described above. It is meshed on the rear side with respect to the center line a. Further, the roller 19a of the engaging pin 19 of the base unit 8 is in a state of being engaged with the end of the lower horizontal portion 40a of the cam groove 40 of the cam member 39, so that the base unit 8 is at the lowered position (FIG. 7). reference). When the base unit 8 is lowered, the optical head 12 is locked by the lock arm 22 as described above.

The circular recess 4a of the disc mounting plate 4
When a loading / eject button (not shown) of the disc player is operated after the disc is placed on the pulley 28 and the pulley 28 and the belt 3 are driven in one direction.
7, the sun gear 32 of the planetary gear mechanism 31 is rotated, and the rotation of the sun gear 32 causes the planet gear 33 to rotate at a reduced speed via the counter gear 34.
Then, the rotation of the planet gear 33 is transmitted to the linear rack portion 48 of the rack 47 via the small-diameter gear portion 33b, so that the disk mounting plate 4 is moved rearward, that is, in the storage direction as shown in FIG.

When the disk mounting plate 4 is moved to a position immediately before being completely housed as shown in FIG. 10, the small-diameter tooth portion 33b of the planet gear 33 (hereinafter simply referred to as a planet gear) is bent from the linear rack portion 48. The planetary gear 33 is moved and meshed with the brake zone 49a of the arc-shaped rack portion 49, so that the planet gear 33 revolves along the arc-shaped rack portion 49 with the arc-shaped rack portion 49 acting as an internal tooth. Rotate and move. That is, the planet gears 33 are arranged on the center line a from the rear side of the center line a with respect to the brake zone 49a of the arc-shaped rack portion 49.
And move to the extended side. For this reason,
The relative peripheral speed of the planet gear 33 with respect to the arc-shaped rack portion 49 is reduced, and the disk mounting plate 4 is decelerated at a position immediately before being completely stored, so that a gentle brake is applied. On the other hand, the swinging arm 30 is rotated by the moving mesh of the planet gear 33.

When the planet gear 33 is engaged with the chucking zone 49b beyond the brake zone 49a of the arc-shaped rack portion 49, the disk mounting plate 4
The planet gear 33 is engaged with the chucking zone 49b of the arc-shaped rack portion 49 on the extension side of the center line a as shown in FIG. 11 while maintaining this state. Chucking Zone 4
It is moved (revolved) while rotating along 9b. Since the swing arm 30 is rotated about the shaft 29 with the rotation of the planet gear 33, the swing arm 3
The cam member 39 is rotated integrally with the zero rotation.

The relative movement of the planet gear 30 and the rack 47 in the meshing state described above is caused by the fact that the convex portion 33 c of the planet gear 33 at the center of the rotation axis is in the guide groove 50 parallel to the rack 47.
Is performed in a state where the gears are engaged with each other.

Then, by the rotation of the cam member 39, the roller 19a of the engaging pin 19 of the base unit 8 is guided to the inclined portion 40b of the cam groove 40 and is moved to the upper horizontal portion 40c. The optical head 12, the turntable 15, and the like are largely protruded from the opening 9 to the upper surface side of the mechanical chassis 2, and the base unit mounting chassis 8 a abuts on the lower surface of the mechanical chassis 2 (FIG. 8).

The base unit 8 using the cam member 39
As described above, the cam member 39 is in a state where the planet gear 33 of the planetary gear mechanism 31 is moving along the chucking zone 49b of the arc-shaped rack portion 49 with the disc mounting plate 4 stored. Therefore, the base unit 8 can be sufficiently raised and driven by the small-diameter and small-sized cam member 39 as in this embodiment.

In the raising operation of the base unit 8, the roller 1 of the engaging pin 19 of the base unit 8 is moved.
The base unit mounting chassis 8a is configured to abut against the lower surface of the mechanical chassis 2 just before the 9a moves from the inclined portion 40b of the cam groove 40 to the upper horizontal portion 40c. When engaged with the horizontal portion 40c, the cam member 39 moves downward against the biasing force of the coil spring 46. Therefore, the base unit 8 is pressed against the lower surface of the mechanical chassis 2 by the biasing force of the coil spring 46, so that the base unit 8 is stably held at the ascending position without rattling or the like.

By raising the base unit 8 in this manner, the optical head 12 and the turntable 15 are moved.
Is inserted from below into the insertion opening 4b of the disk mounting plate 4, whereby the disk mounted on the circular recess 4a of the disk mounting plate 4 is mounted so as to be pushed up onto the turntable 15. The chucking of the chucking member 54 to the turntable 15 causes the disk to be chucked. Further, the lock of the optical head 12 is released as described above with the elevation of the base unit 8.

Then, the base unit 8 is raised in this way, and the planet gear 33 is moved to the arc-shaped rack portion 49.
Of the swing arm 30 abuts the stop switch 38, thereby stopping the drive of the motor 27, stopping the drive of the planetary gear mechanism 31 and the base unit 8 Is fixed to the mechanical chassis 2.

In this state, the planet gear 33 is held at a position meshed with the terminal end of the arc-shaped rack portion 49, and the planet gear 33 is rotated even if a force is applied to the disk mounting plate 4 from the outside in the pull-out direction. Because it will not
Since the disk mounting plate 4 is kept locked at the storage position and the rotation of the cam member 39 is also prevented,
The base unit 8 is held in the raised position.

By operating the play button of the disc player, the spindle motor 14 is driven to rotate the disc by the turntable 15, and
The optical head 12 is operated by the linear motor 13 to perform reproduction.

When the disc is to be ejected after the disc has been played, the loading / ejection button of the disc player is operated to rotate the motor 27 in the opposite direction to the loading / chucking described above. When the base unit 8 is lowered by an operation opposite to the operation, the disk mounting plate 4 moves forward, and when the disk mounting plate 4 is moved to the frontmost withdrawal position, the protruding piece 51 is moved to a stop switch 52. As a result, the drive of the motor 27 is stopped, and the forward movement operation of the disk mounting plate 4 is stopped.

In this ejecting operation, the pulling-out operation of the disk mounting plate 4 is performed at an initial stage, that is, the planetary gear mechanism 31.
When the planet gear 33 is engaged with the arc-shaped rack portion 49 of the rack 47, the operation is performed at a low speed, and when the linear rack portion 48 is engaged with the planet gear 33, the operation is performed at a predetermined high speed.

Further, the disc player provided with the apparatus of the present embodiment configured as described above locks the optical head 12 by a special operation at the time of shipment from the factory. That is, since the optical head 12 is configured to be moved and driven by the linear motor 13 in the apparatus of the present embodiment, the optical head 12 is movable via the slider 11 when the linear motor 13 is not energized. The slider 11 can be locked at the time of shipment from the factory in order to prevent the slider 11 from moving due to inertia and colliding with the yoke or the like of the linear motor 13 at the moving end to prevent damage.

The locking process of the optical head 12 will be described. First, the power of the disc player is turned on,
When the loading / ejection button is operated to pull out the disc mounting plate 4, the disc is placed in the circular recess 4a, and then the loading / ejection button is again operated to store the disc loading plate 4, thereby interlocking with this storing operation. As described above, the base unit 8 is raised to chuck the disk. When the chucking operation is completed, the optical head 12 is moved to the front end position, that is, the innermost peripheral position of the disk by a command from the microcomputer, and the optical head 12
Is operated so as to read a signal recorded on the innermost circumference of the disc and display the signal on the display section of the disc player.

After checking whether the loading operation, the chucking operation and the signal reading operation of the disk are reliably performed in this manner, the loading / ejection button is operated again to pull out the disk mounting plate 4 in the pulling-out direction. The base unit 8 is lowered as described above. As the base unit 8 descends, the lock arm 22
As described above, the optical head 12 is locked by engaging with the engaging concave portion 21 of the slider 11 at the foremost end position.

After the disk is taken out from the disk mounting plate 4 in the pulled-out state, the power is turned off, and in this state, the disk mounting plate 4 is pushed in by hand and inserted. In the operation of manually pushing the disk mounting plate 4 from the pull-out position to the storage position, the planet gears 33 move from the rear end of the linear rack portion 48 to the brake zone 49 of the arc-shaped rack portion 49.
The meshing position is moved to a, but is not moved any further, that is, the planet gear 33 is not meshed with the chucking zone 49b of the arc-shaped rack portion 49.

Because the cam member 39 is hardly rotated, the base unit 8 is held at the lowered position. That is, a special state is set in which the base unit 8 is in the lowered position while the disk mounting plate 4 is in the storage position, and the optical head 12 is locked. By shipping the disk player in this state, transportation is performed. The optical head 12 does not move unexpectedly and is not damaged.

When the user turns on the power after purchasing the disc player, the normal operation as described above is performed, and the optical head 12 is unlocked when the base unit 8 is raised. The disc player can be used without requiring a special unlocking operation.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and it goes without saying that various changes can be made without departing from the spirit of the present invention.

[0054]

As described above, the disk drive of the present invention is set in a state where the movable chassis (base unit) is held at the lowered position and the head is locked even when the disk mounting plate is at the storage position. Since the disk drive can be transported in this state, the head does not move unexpectedly during the transportation, and thus the head can be reliably prevented from being damaged. When the disk drive device is used, the movable chassis rises and the head is unlocked when the disk mounting plate is moved to the storage position, so that the user does not need a special unlocking operation, and Since it is not necessary to separately attach a member for unlocking or a label for a cautionary note, it is effective for cost reduction.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a device of the present invention.

FIG. 2 is a perspective view of the disk mounting plate, partially cut away.

FIG. 3 is a perspective view of the chucking member.

FIG. 4 is an exploded perspective view of the planetary gear mechanism and the cam member.

FIG. 5 is a partially sectional front view of the device of the present invention.

FIG. 6 is a longitudinal sectional view for explaining the operation of the lock mechanism of the optical head in the apparatus of the present invention.

FIG. 7 is a partially sectional side view of the apparatus of the present invention, in which a base unit (movable chassis) is in a lowered position.

FIG. 8 shows a state in which the base unit is in a raised position.

FIG. 9 is a partial cross-sectional plan view of the apparatus of the present invention, showing a state where the disk mounting plate is being moved in the storage direction.

FIG. 10 shows a state immediately before the disk mounting plate is completely housed.

FIG. 11 shows a state in which the disc mounting plate is completely housed.

[Explanation of symbols]

 2 Mechanical Chassis (Fixed Chassis) 4 Disk Mounting Plate 8 Base Unit (Movable Chassis) 12 Optical Head 13 Linear Motor 14 Spindle Motor 20 Lock Mechanism 21 Engagement Depression 22 Lock Arm 30 Swing Arm 31 Planetary Gear Mechanism 32 Sun Gear 33 Planet Gear 39 Cam member 47 Rack 48 Linear rack section 49 Arc rack section 50 Guide groove

Claims (2)

(57) [Claims] A disk mounting plate which is moved between a pull-out position and a storage position with respect to a housing; a spindle motor which drives a disk to rotate; and a linear motor which moves a head in a radial direction of the disk. And a movable chassis movably provided with respect to the fixed chassis, and the disc mounting plate is moved between the pulled-out position and the storage position.
While the disc loading plate is
The movable chassis is moved up and down between a raised position and a lowered position with respect to the fixed chassis when the movable chassis is reached .
A drive mechanism, the header when said movable chassis is in the lowered position
Engage the de lock the head in position, the movable chassis of the head when in the raised position
A lock mechanism for releasing the lock of the head by releasing the engagement, wherein the disk mounting plate is moved by the drive mechanism to the pull-out position.
Moved to the storage position from and reached the storage position
Later the movable chassis is raised to the raised position
As a result, the engagement between the lock mechanism and the head is released.
Is unlocked and the head is unlocked.
The lower part is lowered to the lower position,
The lock mechanism engages the head and moves the head to a predetermined position.
A disk drive device characterized in that the disk drive is locked . 2. The lock mechanism engages with the head.
Between the position where the head engages and the position where the engagement with the head is released.
It has a lock lever that rotates, and the lock lever is
When the movable chassis is raised to the above raised position,
The head comes into contact with the fixed chassis to release the engagement with the head.
2. The disk according to claim 1, wherein
Drive device.