JP2002312952A - Optical disk unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk device, which can be positioned with satisfactory reproducibility with a simple constitution and can be miniaturized. SOLUTION: A moving block 24 incorporating an optical pickup is supported by a base block 20, and the base block 20 is supported by a base holder 22. A guide shaft 40 and a cam shaft 42 are arranged on the base holder 22. The guide shaft 40 is inserted to a guide groove 3202 of an outer plate 32, and the cam shaft 42 is inserted to a cam groove 3410 of a cam plate 34. The cam plate 34 is moved in the Y axis direction and the base block 20 is vertically moved. When the base block 20 is raised to the operating position, the guide shaft 40 is obliquely pressed down by a lock arm 3254, and the guide shaft 40 is pressed down to the edge of the guide groove 3202 in the Y axis direction, and the cam shaft 42 is pressed down to the edge of the cam groove 3410 in the Z axis direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk apparatus, and more particularly, to an apparatus for moving a moving block in which an optical pickup is incorporated.

[0002]

2. Description of the Related Art In an optical disk apparatus for recording / reproducing information on / from an optical disk such as a CD or DVD (in other words, recording information on an optical disk, or reproducing recorded information, or recording / reproducing). In general, the angle at which a laser beam is applied to an optical disc through an objective lens and the distance between the optical disc and the objective lens are very important factors. In addition, a plurality of optical pickups are provided, and each optical pickup independently records / reproduces data on / from the optical disk. The optical disk is housed in a case called a cartridge (provisionally referred to as a 1OP cartridge). Discs with cartridges (with only one optical system and a cartridge window formed only at the location corresponding to the optical system: expressed as 1 OP cartridge)
In the case of a device that needs to be compatible with the above, it is necessary to retreat another optical system so that the objective lens does not hit when the 1OP cartridge is inserted.

[0003] As one of the methods, there is a method of retracting a lens other than a 1OP lens in a height direction with respect to an optical disk (cartridge) surface. Conventionally, as an elevating device for performing such retraction, a method of moving in parallel using a cam (Japanese Patent Application Laid-Open No. Hei 10-283712) and a method of swinging about one axis (Japanese Patent Application Laid-Open No. Hei 8-212754). Gazette) is known.

[0004]

However, in the method of moving in parallel using a cam, the guide pin is moved in the cam groove, and a gap is required to move the pin in the cam groove. Become. For this reason, it is necessary to remove backlash in a state where it is settled at a predetermined position. In the method of swinging about one axis, the structure can be made relatively simple, but a bearing or the like is required for the rotating shaft, which increases the cost. On the other hand, a large vertical stroke is required, and a large vertical space is required. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide an optical disk device that can be positioned with good reproducibility with a simple configuration and that can be downsized.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a spindle motor provided on a base for rotating an optical disk, and a base block provided on the base so as to face the spindle motor. A moving block in which an optical pickup is incorporated, a moving mechanism for moving the moving block on the base block in a Y-axis direction which is a radial direction of the optical disc, and an operation position for recording / reproducing on / from the optical disc And an elevating mechanism for elevating the base block in a Z-axis direction, which is an axial direction of the optical disc, between the evacuation position and a retracted position away from the optical disc. And
In the present invention, a guide shaft protruding in the X-axis direction from both sides of the base block in the X-axis direction which is a direction orthogonal to both the Y-axis direction and the Z-axis direction is provided, and the Z-axis is provided on the base side. A guide groove extending in the direction,
The elevating mechanism is configured to move the guide shaft in the guide groove, and elevate the base block while regulating the position of the base block in the Y-axis direction,
A lock arm is provided which presses the guide shaft in the Y-axis direction and presses the guide shaft against an edge of the guide groove in the Y-axis direction in a state where the base block is located at the operating position. I do. Further, in the present invention, the lifting mechanism is provided with a cam plate that moves in the Y-axis direction on the base, and the cam plate has a cam groove that extends in the Y-axis direction and is displaced in the Z-axis direction. The elevating mechanism is configured to insert a cam shaft projecting in the X-axis direction from both sides of the base block in the X-axis direction, which is a direction orthogonal to both the Y-axis direction and the Z-axis direction, into the cam groove. The base plate is moved up and down by moving the cam plate in the Y-axis direction, and the elevating mechanism presses the cam shaft in the Z-axis direction while the base block is in the operating position. And a lock arm for pressing the cam shaft against an edge of the cam groove in the Z-axis direction. Further, in the present invention, the lifting mechanism is provided with a cam plate that moves in the Y-axis direction on the base, and the cam plate has a cam groove that extends in the Y-axis direction and is displaced in the Z-axis direction. A guide shaft and a cam shaft that are provided in the X-axis direction, which is a direction orthogonal to both the Y-axis direction and the Z-axis direction, and protrude in the X-axis direction from both sides of the base block; The cam shaft is inserted into the cam groove, the cam plate is moved in the Y-axis direction, and the guide shaft is
The base block is configured to be moved in a guide groove provided on the base side and extending in the Z-axis direction to move the base block up and down while regulating the position of the base block in the Y-axis direction. With the base block located at the operating position, move the guide shaft in the Y-axis direction and Z direction.
A lock arm is provided that presses the guide shaft against the edge of the guide groove in the Y-axis direction and presses the cam shaft against the edge of the cam groove in the Z-axis direction while pressing the guide shaft obliquely with respect to both of the axial directions. It is characterized by having been done. Further, in the present invention, a positioning portion is provided on one of two side portions of the base block in an X-axis direction which is a direction orthogonal to both the Y-axis direction and the Z-axis direction, and the X-axis direction A positioning portion is provided on one of the two side portions of the base in the operating position, the positioning portion being capable of contacting the positioning portion of the base block in the operating position, and biasing the base block in the X-axis direction only in the operating position. A spring for pressing the positioning portion of the base block against the positioning portion of the base is provided.

According to the present invention, the raising and lowering operation of the base block can be performed smoothly with a simple configuration, and the X-axis direction, the Y-axis direction, or the Z-axis direction at the operation position.
Axial positioning can be performed accurately.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of an optical disk device, FIG. 2 is an exploded perspective view of an elevating mechanism, FIG. 3 is an exploded perspective view of a base block and a base holder, FIG. 4 is an exploded perspective view of an elevating mechanism, and FIG. FIG. 6 is a perspective view of a main part of the elevating mechanism in a state where the base block is located in the operating position, and FIG. 7 is a perspective view of a main part of the elevating mechanism in a state where the base block is located in the retracted position. FIG. 8 is an enlarged perspective view of the lock arm portion in a state where the base block is located at the operating position, and FIG. 9A is a plan view of the slide plate and the outer plate portion. FIG. 2B shows the front view.
As shown in FIG. 1, an optical disk device 12 for recording / reproducing information on / from an optical disk includes a spindle motor 16 disposed at the center of a base 14, and a turntable 18 provided above an output shaft of the spindle motor 16. ing.
On both sides of the spindle motor 16 on the base 14,
As shown in FIG. 2 and FIG.
Are disposed via a base holder 22, and each base block 20 is provided with a moving block 24 in which an optical pickup is incorporated. In the drawing, as shown by three axes XYZ, the radial direction of the optical disk mounted on the turntable 18 is the Y-axis direction, the axial direction of the optical disk is the Z-axis direction, and the optical disk is orthogonal to the axial direction and the radial direction. Is the X-axis direction (the width direction of the moving block 24).

Each base block 20 is provided with two slide shafts 26 in a direction parallel to the Y-axis direction. As shown in FIG. 3, a bearing 2402 of the moving block 24 is slidable on the slide shafts 26. Mating, each moving block 24
Are movably disposed along two slide shafts 26. The movement of each moving block 24 is performed by a motor mounted on each base block 20, a gear mechanism 2002 provided on the base block 20 and rotated by the power of the motor, and meshed with the gear mechanism 2002 provided on a side portion of the moving block 24. The movement is performed via a rack 2404, whereby each moving block 24 is configured to move along the radial direction of the optical disk mounted on the turntable 18, that is, along the Y-axis direction. In the present embodiment,
A moving mechanism 24A for moving the moving block 24 in the radial direction of the optical disk is constituted by the motor, the gear mechanism 2002, the rack 2404, and the like. All the members constituting the moving mechanism 24A are incorporated on the base block 20. In the present embodiment, the moving block 24 is constituted by a housing of an optical pickup.
Are provided with a laser diode, an optical system that guides light emitted from the laser diode to the optical disk, an objective lens 2406 that forms a part of the optical system, an optical system that guides reflected light from the optical disk to a light receiving element, and the like. , In the figure, reference numeral 24
Reference numeral 08 denotes a two-axis device for adjusting the positions of the objective lens 2406 in the height direction (Z-axis direction) and the radial direction of the optical disc (Y-axis direction).

In this embodiment, in FIG. 1, the optical pickup incorporated in the left moving block 24 is always used, whereas the right moving block 24 is moved to the optical disk by the lifting mechanism 28. Record /
It is configured to move up and down in the Z-axis direction between an operation position for performing reproduction and a retreat position separated from the optical disk. The lifting mechanism 28 includes a base holder 22, a slide plate 30, and an outer plate 3, as shown in FIGS.
2, cam plate 34, adjustment plate 36, moving mechanism 3
8 and the like.

As shown in FIG. 3, the base holder 22 has a bottom surface 2 to which the base block 20 is fixed by screws.
202 and a side surface 2204 sandwiching both sides in the width direction of the base block 20. One guide shaft 40 and two cam shafts 42 are projected from each side surface 2204 of the base holder 22 in parallel with the X-axis direction, and one side surface 2204 is parallel to the Y-axis direction. A positioning leaf spring 44 (positioning spring) is attached. Note that annular bearings 4002 and 4202 are fitted to the guide shaft 40 and the cam shaft 42, respectively. In addition, at both ends of each side surface 2204 of the base holder 22 in the Y-axis direction,
A positioning piece 2210 (positioning portion) is provided, which stands at a right angle from the bottom surface 2202 and has an upper portion inclined inward.

As shown in FIG. 2, the slide plate 30 has a bottom surface 3002 and side surfaces 3004 standing upright from both sides of the bottom surface 3002. The bottom surface 3002 is
The pin 1402 provided on the base 14 is disposed below the bottom surface 2202 of the base holder 22 on the base 14 and engages with the long groove of the bottom surface 3002, whereby the slide plate 30 is disposed so as to be movable in the Y-axis direction. The movement of the slide plate 30 is performed by the moving mechanism 38.

As shown in FIG.
And the adjustment plate 36 are connected to the side surface 220 of the base holder 22.
4 and the side plate 3004 of the slide plate 30, and the outer plate 32 is
Is attached to the base 14 with a screw (not shown) so as to reach the outside of the side surface 3004 of the base. Each outer plate 32 has a guide groove 3202 which is open upward and extends in the Z-axis direction.
As shown in FIGS. 2, 7, and 8, a limiter arm 3250, a limiter spring 3252, and a lock arm 3254 are provided on the inner surface of each outer plate 32 so as to face the guide groove 3202. 3256
Are the limiter arm 3250 and the lock arm 325
7 and 8, reference numeral 3258 denotes a limiter pin implanted in the limiter arm 3250. In addition, as shown in FIGS.
54 is a spring 32 stretched between the outer plate 32
It is always urged upward by 59. Also, as shown in FIGS. 2, 9A and 9B, each outer plate 32
Are provided with two positioning pins 3260 (positioning portions) that can contact the positioning pieces 2210 of the base holder 22, and one of the four positioning pins 3260 of each outer plate 32 is fixed. The other three are configured so that the protrusion height can be adjusted by loosening and tightening the screws.

As shown in FIG.
The screw N 1, the long grooves 3012, 3014, and the screw hole 36 in a state where the support shaft 3602 protruding in the X-axis direction is
04 is attached to the inner surface of the side plate 3004. The guide pin 3402 of the cam plate 34 is inserted into the long groove 3606 of the adjustment plate 36, and the adjustment plate 36
The screw N2 is screwed into the screw hole 3404 of the cam plate 34 through the long groove 3608 from the outside, and is attached to the inner surface of the adjustment plate 36. Then, the base holder 22
Is inserted into the guide groove 3202 of the outer plate 32 via the bearing 4002, whereby the base block 20 is supported so as to be movable only in the Z-axis direction, and the cam shaft 42 of the base holder 22 is mounted on the bearing 4202. The cam block 34 is inserted into the cam groove 3410 of the cam plate 34 through the, so that the cam block 34 moves in the Y-axis direction, so that the base block 20 moves up and down.

As described above, the side surface 3 of the slide plate 30
In the state where the adjustment plate 36 is attached to the inner surface of the outer plate 32 and the cam plate 34 is attached to the inner surface of the adjustment plate 36, the large-diameter hole 3020 of the side surface 3004 of the slide plate 30 is inserted into the long hole 3210 of the outer plate 32. Are located, and the adjustment hole 3620 of the adjustment plate 36 is located in the large diameter hole 3020. Therefore, the left and right screws N1,
N1 is placed on the outer plate 32 outside the outer plate 32.
An eccentric driver having a small-diameter cylindrical portion projecting from the center of the end face of the large-diameter cylindrical portion is prepared by loosening from the long holes 3212, 3214 of the outer plate 32. Inserting the large-diameter hole 3020 in the side surface 3004 of the slide plate 30 through the long hole 3210, and inserting the small-diameter cylindrical portion into the adjustment hole 3620 of the adjustment plate 36,
When the eccentric driver is rotated, the adjustment plate 36 and the cam plate 34 swing about the support shaft 3602,
The base block 20 is adjusted in the radial direction by swinging the adjustment plate 36 and the cam plate 34 on the opposite side.

The side surface 300 of the slide plate 30
In the state where the adjustment plate 36 is attached to the inner surface of the slide plate 30 and the cam plate 34 is attached to the inner surface of the adjustment plate 36, the large-diameter hole 3022 of the side surface 3004 of the slide plate 30 is inserted into the long hole 3212 of the outer plate 32. Are located, the hole 3622 of the adjustment plate 36 is located in the large diameter hole 3022, and the adjustment hole 3420 of the cam plate 34 is located in the hole 3622 of the adjustment plate 36. Therefore, the left and right screws N2, N2 are loosened from the long holes 3212, 3214 of the outer plate 32 outside the outer plate 32, and the large-diameter cylindrical portion of the eccentric driver is fixed to the long hole 321 of the outer plate 32.
2. Insert the small-diameter cylindrical portion into the adjusting hole 3420 of the cam plate 34 through the large-diameter hole 3022 of the slide plate 30 and the small-diameter cylindrical portion, and rotate the eccentric driver.
02 moves along the long groove 3606 of the adjusting plate 36, the cam plate 34 moves up and down, whereby the base block 20 moves up and down in the Z-axis direction.
In the Tangential direction, the height of the base block 20 (adjustment in the Z-axis direction) is adjusted by adjusting the opposite side.

The movement of the slide plate 30 is performed by a moving mechanism 38. The moving mechanism 38 includes a load motor 3 provided on a base 14 as shown in FIG.
802, a worm gear 3804 rotationally driven by a load motor 3802, a worm wheel 3806 meshing with the worm gear 3804, and a worm wheel 3806
A load gear 3808 meshing with a gear that rotates integrally with
A load arm 3812 having the same rotation center as the load gear 3808 and connected to the load gear 3808 via a load limiter spring 3810, and a slide link 3814 connecting the load arm 3812 and the slide plate 30.
It is composed of Both ends of the slide link 3814 are pin-connected to the base of the load arm 3812 and the slide plate 30, respectively.
The end connected to the load arm 3812 has a curved portion 38.
14A (see FIG. 6 (B)), and is configured such that a large force is exerted with a smaller force on the toggle mechanism.

FIG. 5 shows a state in which the moving block 24 has been lowered to the retracted position, FIG. 6 shows a state in which the moving block 24 has been raised to the operating position, and when the load motor 3802 rotates forward from the state shown in FIG. The load arm 3812 is normally rotated via the worm gear 3804, the worm wheel 3806, the load gear 3808, and the load limiter spring 3810, and the slide link 3814 is drawn, so that the slide plate 30 is drawn. Moving, camshaft 4
2. The moving block 24 is raised to the operating position via the cam groove 3410. Then, in a state where the moving block 24 is raised to the operating position, as shown in FIG. 6B, the distal end of the curved portion 3814A where the load arm 3812 and the slide link 3814 are joined together has the load arm 381.
Over the dead center D beyond the center of rotation 2 and the curved portion 3814A
The rotation shaft 3812A of the load arm 3812 abuts on the inside, the slide link 3814 stops, and the load arm 3812 also stops. However, the load gear 3808 further rotates and stops after the load limiter spring 3810 expands. The function of the load limiter spring 3810 prevents the worm gear 3804 from biting.

When the moving block 24 is raised to the operating position, the bending portion 381 of the slide link 3814
Since the tip of 4A crosses over the dead center D beyond the rotation center of the load arm 3812, and the rotation axis of the load arm 3812 abuts inside the curved portion 3814A, the slide plate 30 moves in the opposite direction due to vibration or the like. Is prevented. When the moving block 24 is lowered from the operating position to the retreat position, the load motor 3802 is moved from the state shown in FIG.
, The load gear 3808 and the load arm 3812 rotate together as a unit, and the slide link 3
When the slide plate 30 is pushed out by pushing the 814, the cam plate 34 moves integrally with the slide plate 30, and the moving block 24 is lowered to the retreat position via the cam shaft 42 and the cam groove 3410.

In this case, the stop position of the slide plate 30 is provided with a margin, and the play is stopped in the Y-axis direction by a stop limiter spring 46 (see FIG. 2) provided on the base.
Biting of the worm gear 3804 is prevented. In addition,
5 and 6, reference numeral 50 denotes a pin protruding from the load gear 3808, and reference numerals 52 and 54 denote sensor arms provided on the base 14. When the moving block 24 is located at the operating position, the sensor arm 52 is actuated by the pin 50. Is pivoted, the switch connected to the sensor arm 52 is operated, and when the moving block 24 is located at the retracted position, the pin 50 is moved.
The sensor arm 54 is swung by the
Is configured to operate.

Next, the operation of the lifting mechanism 28 will be described. First, as shown in FIG.
When the base holder 22 and the moving block 24 are lowered to the retracted position, the slide plate 30 and the cam plate 3
4. The adjustment plate 36 is located at a position farthest from the spindle motor 16. Since the base block 20, the base holder 22, and the moving block 24 are integrally moved by the elevating mechanism 28, the base block 20, the base holder 2
2. The base block 20 of the moving block 24 will be described. As shown in FIGS. 5 and 7, the cam groove 3410 is formed so as to be displaced in the Z-axis direction while extending in the Y-axis direction, and when the base block 20 is lowered to the retracted position, the cam shaft 42 Lower part 3410 of cam groove 3410
A is located. The positioning pins 3260 of each outer plate 32 are positioned on the positioning pieces 22 of the base holder 22.
10 is located above. Further, the tip of the positioning leaf spring 44 of the base holder 22 is located within the notch 3430 of the cam plate 34 as shown in FIG.
Also, as shown in FIGS. 5 and 7, the urging force of the spring 3259 acts on the limiter arm 3250 via the lock arm 3254 and the limiter spring 3252. As a result, the lock arm 3250 is located at a position diagonally above the guide shaft 40.

When the slide plate 30 is pulled toward the spindle motor 16 by the moving mechanism 38 from the retracted position, the cam plate 34 and the adjustment plate 36 move integrally with the slide plate 30 and the cam shaft 42
From the lower part 3410A of the cam groove 3410 to the inclined part 341
0B, and the base block 20 is supported so that the guide shaft 40 is engaged with the guide groove 3202 and can move only in the Y-axis direction. It gradually rises while maintaining a parallel state. Further slide plate 3
By the movement of 0, the camshaft 42 moves from the inclined portion 3410B of the cam groove 3410 to the upper portion 3410C, and the base block 20 becomes the operating position. Immediately before the cam shaft 42 reaches the upper portion 3410C from the inclined portion 3410B of the cam groove 3410, that is, immediately before the base block 20 reaches the operating position, the positioning pins 32 of the outer plates 32 are moved.
Between 60, the positioning piece 2210 of the base holder 22 (the portion that stands upright from the bottom surface 2202) is located from the inclined portion.

At substantially the same time, the leading end of the positioning leaf spring 44 comes into contact with the inner surface (contact portion) of the cam plate 34 forming the side of the notch 3430, and the positioning spring 44 is formed. By the force, the positioning pin 32
The positioning piece 2210 of the base holder 22 comes into contact with the two positioning pins 3260 on the side provided with 60, and the backlash of the base block 20 in the X-axis direction is removed to perform positioning. Also, as shown in FIG. 8, the limiter pin 3258 contacts the upper edge 3030 of the side surface 3004 of the slide plate 30 to the vertical edge 3032 (engagement portion) to swing the limiter arm 3250, and the limiter spring 3252
, The lock arm 3254 swings.

Then, the lock arm 3254 presses the guide shaft 40 from the direction of 45 degrees with respect to the extending direction of the guide groove 3202 on the YZ plane. Due to the force F1 of the lock arm 3254 pressing the guide shaft 40 obliquely, the guide shaft 40 is pressed against the edge of the guide groove 3202 on the side away from the spindle motor 16 by the component force F2,
The backlash in the Y-axis direction is removed, and the Y of the base block 20 is removed.
Axial positioning is performed. In addition, the lock arm 32
The cam shaft 42 is pressed against the lower edge of the upper portion 3410C of the cam groove 3410 by the component force F3 by the force F1 that presses the guide shaft 40 obliquely, so that the backlash in the Z-axis direction is removed and the base block is removed. Positioning in the Z-axis direction is performed.

According to the present embodiment, the backlash of the base block 20 in the X-axis direction, the Y-axis direction, and the Z-axis direction with respect to the base 14 can be easily obtained. Positioning in the axial direction and the Z-axis direction is performed accurately. In addition, the operation of positioning by removing the backlash is performed when the base block 20 reaches the operating position, and has a backlash when the base block 20 moves up and down between the retracted position, so that the base block 20 can be moved up and down smoothly. Is made.

It should be noted that two lock arms 3254 are provided,
One of the lock arms presses the guide shaft 42 in the Y-axis direction to perform only positioning in the Y-axis direction, and the other lock arm presses the cam shaft 42 in the Z-axis direction to perform Z positioning.
Although only the positioning in the axial direction may be performed, when the guide shaft 42 is obliquely pressed by the lock arm 3254 as in the embodiment, one lock arm 325 is formed.
4 allows positioning in both the Y-axis direction and the Z-axis direction, which is advantageous in reducing the number of components and simplifying assembly.

[0026]

As described above, according to the present invention, it is possible to obtain an optical disk device that can be positioned with good reproducibility with a simple configuration and that can be downsized.

[Brief description of the drawings]

FIG. 1 is a perspective view of an optical disk device.

FIG. 2 is an exploded perspective view of a lifting mechanism.

FIG. 3 is an exploded perspective view of a base block and a base holder.

FIG. 4 is an exploded perspective view of a lifting mechanism.

FIG. 5 is a perspective view of a main part of the lifting mechanism in a state where the base block is located at a retracted position.

FIG. 6 is a perspective view of a main part of the elevating mechanism in a state where the base block is located at the operating position.

FIG. 7 is an enlarged perspective view of a lock arm portion in a state where a base block is located at a retracted position.

FIG. 8 is an enlarged perspective view of a lock arm portion in a state where a base block is located at an operation position.

FIG. 9A is a plan view of a slide plate and an outer plate portion, and FIG. 9B is a front view of the same.

[Explanation of symbols]

12 optical disk drive, 14 base, 16 spindle motor, 20 base block, 22 base holder, 30 slide plate, 32 outer plate, 3254 lock arm, 34 Cam plate, 36 adjustment plate, 40 guide shaft,
42 ... Cam shaft.

Claims (16)

[Claims] 1. A spindle motor disposed on a base for rotating and driving an optical disk; a base block disposed on the base so as to face the spindle motor; a moving block incorporating an optical pickup; A moving mechanism for moving the moving block in the Y-axis direction, which is a radial direction of the optical disc, and a base block between an operating position for performing recording / reproducing on the optical disc and a retracted position away from the optical disc. An optical disk drive comprising a lifting mechanism for raising and lowering the optical disk in a Z-axis direction which is an axial direction of the optical disk, wherein X is a direction orthogonal to both the Y-axis direction and the Z-axis direction.
A guide shaft protruding in the X-axis direction from both sides of the base block in the axial direction is provided, and a guide groove extending in the Z-axis direction is provided on the base side. The base block is configured to be moved in the guide groove and to move up and down while regulating the position of the base block in the Y-axis direction. In a state where the base block is located at the operating position, the guide shaft is moved in the Y-axis direction. And a lock arm that presses the guide shaft against an edge of the guide groove in the Y-axis direction. 2. The apparatus according to claim 1, wherein the lifting mechanism is configured to move the Y
A slide plate that moves up and down the base block by moving in the axial direction, the lock arm is urged in a direction away from the guide shaft and is supported on the base side, and the lock arm is in a state where the base block is located at the operating position. 2. The optical disc device according to claim 1, wherein the lock arm is configured to engage with an engagement portion of the slide plate and swing the guide shaft in a direction to press in the Y-axis direction. 3. The moving mechanism for moving the slide plate includes a load arm rotatably disposed on the base at a position distant from the slide plate, and a slide link connecting the load arm and the slide plate. A bending portion is formed at one end of the slide link, and a tip of the bending portion is connected to a load arm, and the slide plate is drawn by rotating the load arm to pull the slide link toward the load arm. The base block is configured to move and the base block is raised to the operating position, and in a state where the base block is located in the operating position, the distal end of the bending section straddles the rotation axis of the load arm and the bending section contacts the rotation axis. 3. The optical disk device according to claim 2, wherein: 4. The optical disk device according to claim 1, wherein the base block is supported by a base holder, and the guide shaft is provided on the base holder. 5. A spindle motor disposed on a base for rotating and driving an optical disk; a base block facing the spindle motor and disposed on the base; a moving block having an optical pickup incorporated therein; A moving mechanism for moving the moving block in the Y-axis direction, which is a radial direction of the optical disc, and a base block between an operating position for performing recording / reproducing on the optical disc and a retracted position away from the optical disc. An elevating mechanism for elevating and lowering in a Z-axis direction which is an axial direction of the optical disc, wherein the elevating mechanism is provided with a cam plate which moves on the base in the Y-axis direction; Is provided with a cam groove which extends in the Y-axis direction and is displaced in the Z-axis direction. A cam shaft protruding in the X-axis direction from both sides of the base block in the X-axis direction, which is a direction orthogonal to both the direction and the Z-axis direction, is inserted into the cam groove, and the cam plate is moved in the Y-axis direction. The elevating mechanism is configured to raise and lower the base block. The elevating mechanism presses the camshaft in the Z-axis direction in a state where the base block is located at the operating position, and moves the camshaft in the Z-axis direction. An optical disk device, comprising: a lock arm that presses against an edge of a groove. 6. The lift mechanism includes a slide plate connected to the cam plate and moving the cam plate in the Y-axis direction on the base by moving the cam plate in the Y-axis direction. The lock arm is urged away from the base and supported on the base side, and the lock arm engages with the engagement portion of the slide plate and presses the guide shaft in the Y-axis direction in a state where the base block is located at the operating position. The optical disk device according to claim 5, wherein the optical disk device is configured to swing in a direction. 7. The moving mechanism for moving the slide plate includes a load arm rotatably disposed on the base at a position distant from the slide plate, and a slide link connecting the load arm and the slide plate. A bending portion is formed at one end of the slide link, and a tip of the bending portion is connected to a load arm, and the slide plate is drawn by rotating the load arm to pull the slide link toward the load arm. The base block is configured to move and the base block is raised to the operating position, and in a state where the base block is located in the operating position, the distal end of the bending section straddles the rotation axis of the load arm and the bending section contacts the rotation axis. 7. The optical disk device according to claim 6, wherein: 8. The optical disk device according to claim 5, wherein the base block is supported by a base holder, and the cam shaft is provided on the base holder. 9. A spindle motor disposed on a base for rotating and driving an optical disk; a base block facing the spindle motor and disposed on the base; a moving block having an optical pickup incorporated therein; A moving mechanism for moving the moving block in the Y-axis direction, which is a radial direction of the optical disc, and a base block between an operating position for performing recording / reproducing on the optical disc and a retracted position away from the optical disc. An elevating mechanism for elevating and lowering in a Z-axis direction which is an axial direction of the optical disc, wherein the elevating mechanism is provided with a cam plate which moves on the base in the Y-axis direction; A cam groove extending in the Y-axis direction and displacing in the Z-axis direction is provided in the Y-axis direction and the Z-axis direction. It is a direction perpendicular to both X
A guide shaft and a cam shaft are provided that protrude in the X-axis direction from both sides of the base block in the axial direction. The elevating mechanism inserts the cam shaft into the cam groove and moves a cam plate in the Y-axis direction. And, the guide shaft is configured to be moved in a guide groove provided on the base side and extending in the Z-axis direction, so as to move the base block up and down while regulating the position of the base block in the Y-axis direction. The elevating mechanism presses the guide shaft in a direction oblique to both the Y-axis direction and the Z-axis direction while the base block is at the operating position, and pushes the guide shaft in the Y-axis direction. Press against the edge of the guide groove at
An optical disc device, comprising: a lock arm that presses the cam shaft against an edge of a cam groove in the Z-axis direction. 10. The lifting mechanism includes a slide plate connected to the cam plate and moving the cam plate in the Y-axis direction on the base by moving the cam plate in the Y-axis direction. The lock arm is urged away from the base and supported on the base side, and the lock arm engages with the engagement portion of the slide plate and presses the guide shaft in the oblique direction when the base block is in the operating position. The optical disk device according to claim 9, wherein the optical disk device is configured to swing in a direction. 11. The moving mechanism for moving the slide plate includes a load arm rotatably disposed on the base at a position distant from the slide plate, and a slide link connecting the load arm and the slide plate. A bending portion is formed at one end of the slide link, and a tip of the bending portion is connected to a load arm, and the slide plate is drawn by rotating the load arm to pull the slide link toward the load arm. The base block is configured to move and the base block is raised to the operating position, and in a state where the base block is located in the operating position, the distal end of the bending section straddles the rotation axis of the load arm and the bending section contacts the rotation axis. 11. The optical disk device according to claim 10, wherein: 12. The optical disk device according to claim 9, wherein the base block is supported by a base holder, and the guide shaft and the cam shaft are provided on the base holder. 13. A spindle motor disposed on a base for rotating and driving an optical disk, a base block facing the spindle motor and disposed on the base, a moving block incorporating an optical pickup, and the base block. A moving mechanism for moving the moving block in the Y-axis direction, which is a radial direction of the optical disc, and a base block between an operating position for performing recording / reproducing on the optical disc and a retracted position away from the optical disc. An optical disk drive comprising a lifting mechanism for raising and lowering the optical disk in a Z-axis direction which is an axial direction of the optical disk, wherein X is a direction orthogonal to both the Y-axis direction and the Z-axis direction
A positioning portion is provided on one side of both sides of the base block in the axial direction, and the positioning of the base block in the operating position is provided on one side of both sides of the base in the X-axis direction. A positioning portion capable of contacting the portion, a biasing spring for urging the base block in the X-axis direction only in the operating position and pressing the positioning portion of the base block against the positioning portion of the base is provided; An optical disc device characterized by the above-mentioned. 14. A cam plate for raising and lowering the base block by moving in the Y-axis direction while facing the side of the base block on the base, wherein the positioning spring is provided on the base. A base portion attached to a side portion of the block, and a tip portion extending in the Y-axis direction from the base portion and capable of contacting the contact portion of the cam plate and generating the urging force by contacting the contact portion. 14. A leaf spring configured as claimed in claim 13, wherein the cam plate is provided with a notch so that the tip portion contacts the contact portion immediately before the base block reaches the operating position.
An optical disk device as described in the above. 15. The positioning section of the base block,
Also provided on the other side of the two sides of the base block in the X-axis direction, the positioning portion of the base,
Also provided on the other side of the two sides of the base in the X-axis direction, immediately before the base block reaches the operating position, positioning parts on both sides of the base block,
14. The optical disk device according to claim 13, wherein the optical disk device is configured to be located between positioning portions on both sides of the base. 16. The optical disk device according to claim 13, wherein said base block is supported by a base holder, and said positioning surface is provided on said base holder.