JPH11224438A - Optical pickup device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately adjust the skew of an optical pickup device by simple constitution. SOLUTION: A feeding screw shaft 53 turnably driven by a feeding motor 55 and a guide shaft 53 parallel with this feeding screw shaft 52 are horizontally arranged over a chassis 42, then the optical pickup device 43 is movably supported by this feeding screw shaft 52 and the guide shaft 53. A skew adjusting means 56 is furnished between a tip part of the feeding screw shaft 52 and the chassis 42, and a skew adjusting means 57 is furnished lying across the guide shaft 53 and the chassis 42.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an optical pickup device provided in an optical disk device for recording and / or reproducing an optical disk which is a disk-shaped optical recording medium such as an optical disk and a magneto-optical disk.

[0002]

2. Description of the Related Art An optical pickup device provided in an optical disk device is provided alone in an optical disk device for reproducing an optical disk such as a compact disk (CD), and a magneto-optical device for recording and / or reproducing a magneto-optical disk. The disk device is provided in combination with a magnetic head device as an overwrite head.

As shown in FIG. 7, a magneto-optical disk device as an optical disk device has a recording / reproducing mechanism 3 comprising an optical pickup device 1 and a magnetic head device 2, and a disk rotating drive comprising a spindle motor 4 and a turntable 5. A mechanism 6 is provided.

The optical pickup device 1 incorporates an optical system (not shown) having a semiconductor laser for generating a laser beam as a light source and a light receiving signal element for receiving and detecting a disk reflected beam in a flat box-shaped slide base 7 as a main body. Then, the optical path of this optical system is conducted to the objective lens 8 side exposed on the surface side of the slide base 7. The objective lens 8 is movably supported in a focus direction and a tracking direction by a biaxial actuator 23 which is an objective lens driving mechanism shown in FIG. 8, and the biaxial actuator 23 is covered by an actuator cover 9.
A window hole 9a is provided on the upper surface of the cover 9 in correspondence with the objective lens 8, so that the laser beam is emitted when the objective lens 8 is outwardly desired.

The magnetic head device 2 has a head for generating a magnetic field, that is, an overwrite head 10 mounted on a head slider 11, and the head slider 11 having a cantilever leaf spring 13 fixed to a support plate 12 at a base end. It is configured to be attached to the tip.

[0006] side view so as to face each other across the optical pickup device 1 and the magneto-optical disk D _M of the magnetic head unit 2 is placed chucked on the turntable 5 of the rotary drive mechanism 6 in the direction perpendicular to the disk surface They are connected by a bracket 14 formed in a substantially U-shape. In this connection, the optical pickup device 1 is fixed to the lower horizontal surface portion 14a of the bracket 14 at the base end of the slide base 7, and the magnetic head device 2 is fixed to the upper horizontal surface portion 14b.
Is fixed at the base end of the recording / reproducing mechanism 3
Is composed.

The recording / reproducing mechanism 3 includes a pair of guide shaft holes 15 provided on the base end side of the slide base 7 of the optical pickup device 1 and a substantially U-shaped guide provided near one side of the distal end side. The grooves 16 are respectively inserted and engaged with guide shafts 17 and 18 which are fixed to the chassis (not shown) on the side of the chassis.
That it is movably supported in the radial direction of the magneto-optical disk D _M that is chucked on the turntable 5. A screw receiver 19 is attached to the bracket 14 and is screwed to a rotary screw shaft 22 of a stepping motor 21 supported by a motor bracket 20 on the chassis side.

[0008] recording and reproducing mechanism 3 by the buyer of the rotating screw shaft 22 by the drive of the stepping motor 21, is moved in the radial direction with respect to the magneto-optical disk D _M on the turntable 5, this movement of the magnetic head device 2 The overwrite head 10 is moved with a required gap with respect to the magneto-optical disk D _M by moving the head slider 11 away from the disk surface of the magneto-optical disk D _M against the load of the cantilever leaf spring 13. Is recorded and reproduced.

[0009] The optical pickup device 1 provided in the optical magnetic disc apparatus as thus configured optical disk apparatus, on a recording surface of the magneto-optical disk D _M, formed in a spiral shape a substantially concentric In order to accurately record the recording signal along the recording track to be recorded, and to accurately read the recording data along the recording track,
Properly focused, i.e., the light beam is the beam spot is accurately positioned on the magneto-optical disc in focus on the recording surface of the D _M recording track of the light beam emitted from the semiconductor laser as a light source on the recording surface of the disk Therefore, it is necessary that the light beam be incident perpendicularly to the recording surface of the disk and be reflected.

[0010] The biaxial actuator 23 as the objective lens 8 in this order optical pickup device 1 shown in FIG. 8, and is supported movably in the focus direction and the tracking direction with respect to the optical disk D _M. The biaxial actuator 23 supporting the objective lens 8 includes a focus coil 25 and a tracking coil 2 on a lens holder 24 as a movable member on which the objective lens 8 is held.
The bobbin 27 around which the bobbin 2 is wound is attached.
7 is inserted into a yoke 30 formed upright from a yoke base 28 as an actuator substrate and joined with a magnet 29 so as to be movable in the axial direction and rotatable in the axial direction. The lens holder 24 is fixed to a biaxial support 32 as a fixed side member fixed to a rear end of the yoke base 28 via an adjustment plate 31 at a diaphragm spring portion 33a at a base end in a vertical direction. And four spring wires 33 substantially parallel to the lateral direction, ie,
The biaxial suspension is supported movably in the vertical direction and the horizontal direction, the objective lens 8 to be held in this lens holder 24 is configured to be operated controlled in focusing and tracking directions with respect to the magneto-optical disk D _M I have.

Further, the objective lens 8, the lateral and longitudinal directions in order to reflect by incident perpendicularly the light beams to the recording surface of the magneto-optical disk D _M displacement or skew (XY direction) (gradient) In order to adjust the skew of the objective lens 8, the biaxial support 32 supporting the lens holder 24 via the spring wire 33 is fixed to the yoke base 28 as an actuator substrate via the adjustment plate 31. Before using the required jig, and after adjusting the skew in the tangential direction,
By fixing the adjustment plate 31 to the yoke base 28 using the solder s, a two-axis actuator 23 as an objective lens driving mechanism is configured.

The optical pickup device 1 configured as described above is also used as an optical pickup device in an optical disk device for reproducing a read-only optical disk such as a compact disk (CD).

[0013]

As described above, in order to maximize the characteristics of the optical pickup device of the optical disk device and the optical pickup device of the magneto-optical disk device, it is necessary to reduce the skew of the optical pickup device. Need to be the best point. However, in an optical disk device or the like, a skew also occurs in a turntable of a rotary drive mechanism that rotates an optical disk or the like, and a chassis itself on which an optical pickup device is mounted is warped and deformed. Adjustment is not enough, and skew must be adjusted on the chassis side as well.

For this reason, the skew adjustment mechanism is provided in the chassis itself to adjust the skew of the entire chassis. However, a large number of components are added to the outer surface of the chassis for the skew adjustment mechanism. Therefore, the configuration becomes complicated, the assembly work requires time and effort, and the number of parts increases, which increases the cost. In addition, since a large space for mounting the chassis is required, the size of an optical disk device or the like provided with the space is increased.

As described above, the prior art has a problem in cost and space due to the skew adjustment mechanism of the chassis.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an optical pickup device capable of reliably performing skew adjustment with a simple configuration.

[0017]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a signal recording method for an optical disk which is guided by a feed mechanism and a guide mechanism arranged on a chassis and is driven to rotate by a rotary drive mechanism. An optical pickup device which is moved in parallel with a surface and performs recording and / or reproduction, wherein at least one of a feed mechanism and a guide mechanism is provided with skew adjustment means for adjusting skew from outside the chassis. Things.

In the above structure, the feed mechanism has a feed screw shaft which is screwed into the base of the optical pickup device, is supported by the chassis via a bearing member, and is driven to rotate by the feed motor. With a guide shaft erected on a chassis and slidably supporting a base of the optical pickup device, and provided with skew adjusting means between at least one of the bearing member of the feed screw shaft and the guide shaft and the chassis. It is.

In the above configuration, the skew adjusting means may include a hole formed on a surface of the chassis opposite to at least one of the bearing member and the guide shaft of the feed screw shaft, and a hole formed in the hole formed from the outside. And an operation jig to be inserted and operated.

In the optical pickup device configured as described above, the skew adjusting means can be easily configured with a small number of parts, and can adjust the skew even for a warped or deformed chassis. It is always moved parallel to the signal recording surface of the optical disk that is driven to rotate, so that recording and / or reproduction can be performed reliably. Further, the simplification of the structure of the skew adjustment mechanism can reduce the cost, reduce the installation space, and reduce the size of the optical disk device.

[0021]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIGS.

In this embodiment, an optical pickup device provided in an optical disk device can be guided and moved in parallel to a signal recording surface of an optical disk which is driven to rotate by a rotation driving mechanism.

FIG. 1 shows a main part of a disk drive of an optical disk device.
Is configured by mounting an optical pickup device 43, a disk rotation drive mechanism 46 including a spindle motor 44 and a turntable 45 on a chassis 42.

The optical pickup device 43, like the optical pickup device 1 shown in FIG. 7 described above, receives a semiconductor laser for generating a laser beam and a disk reflected beam as a light source in a flat box-shaped slide base 47 as a base. An optical system having a light receiving and detecting element for detection is built in, and the optical path of this optical system is conducted to the objective lens 48 exposed on the surface side of the slide base 47. The objective lens 48 is movably supported in a focus direction and a tracking direction by a biaxial actuator (not shown) similar to the biaxial actuator 23 which is the objective lens driving mechanism shown in FIG. Is covered with an actuator cover 49, and a window hole 49a is formed on the upper surface of the cover 49 in correspondence with the objective lens 48, so that the objective lens 48 is outwardly projected to emit a laser beam. .

In the optical pickup device 43, a screw hole 50 penetrates one side of the slide base 47, and a substantially U-shaped guide 51 protrudes from an end surface of the other side. A feed screw shaft 52 rotatably mounted horizontally on one side surface 42a of the chassis 42 is screwed into the screw hole 50 of the slide base 47, and the substantially U-shaped guide 51 is connected to the other side surface portion 42b of the chassis 42. Side, parallel to the feed screw shaft 52,
The guide shaft 53 is slidably engaged in the axial direction with a guide shaft 53 that is laid horizontally. The feed screw shaft 52 has a stepping motor 5 serving as a feed motor via a gear reduction mechanism 54 on the base end side.
5 and is rotationally driven.

The rotation of the feed screw shaft 52 in the forward and reverse directions causes the optical pickup device 43 to move toward and away from the disk rotation drive mechanism 46, that is, of the optical disk chucked on the turntable 45. The disk is moved in the radial direction from the periphery to the outer periphery, and recording and / or reproduction of the optical disk is performed as described above.

In this embodiment, skew adjusting means 56 and 57 are provided on the support portion of the feed screw shaft 52 and the guide shaft 53 for supporting the chassis 42.

Skew adjusting means 56 of feed screw shaft 52
The bearing block 58 is disposed at a corner on one side of the chassis 42 and rotatably supports the distal end of the feed screw shaft 52, as shown in FIGS.
And a bearing slide guide 59 for positioning and guiding the position 8 with respect to the chassis 42. The bearing block 58 is cubic and has a first surface, namely a rear surface 58.
A bearing hole 60 is provided on the a side to support the distal end of the feed screw shaft 52 for insertion. The bearing hole 60 faces the second surface adjacent to the first surface 58a, that is, the inner surface of the one side surface portion 42a of the chassis 42. An engagement hole 61 into which a jig to be described later is inserted and engaged is provided on the side surface 58b, and a third surface adjacent to the second surface, that is, as shown in FIG.
A screw hole 62 is provided in the front surface 58c facing the inner surface of the second front portion 42c.

The bearing slide guide 59 is provided at the front end corner of the one side surface 42a of the chassis 42 so as to be opened in the vertical direction, that is, parallel to the optical axis direction of the objective lens 48 of the optical pickup device 43. A slit opening 63 having a width equal to or slightly larger than the diameter of the feed screw shaft 52 is formed in the portion. The bearing slide guide 59, one side surface 42a and the front surface 42c of the chassis 42
The space formed by the above is sized so that the bearing block 58 can be slidably inserted only in the vertical direction, that is, only in the optical axis direction of the objective lens 48.

By inserting the bearing block 58 into the space defined by the bearing slide guide 59 in this manner, the bearing hole 60 on the rear surface 58a corresponds to the opening 63. Also, a jig insertion hole 64 that is long in the sliding direction of the bearing block 58 is formed in one side surface portion 42a of the chassis 42 so as to correspond to the jig engagement hole 61 on the side surface 58b side of the bearing block 58. The shorter diameter of the tool insertion hole 64 is formed larger than the diameter of the jig engagement hole 61. Further, the front surface 42 c of the chassis 42 is provided with the front surface 5 of the bearing block 58.
A long screw insertion hole 65 is formed in the sliding direction of the bearing block 58 corresponding to the screw hole 62 on the 8c side, and the short diameter of the screw insertion hole 65 is formed larger than the diameter of the screw hole 62.

The bearing block 58 thus formed
The feed screw shaft 52 screwed into the screw hole 50 of the slide base 47 of the optical pickup device 43 in the bearing hole 60 of the optical pickup device 43.
The bearing block 58 is inserted into the space formed by the chassis 42 and the bearing slide guide 59, and the front portion 42c of the chassis 42 is inserted.
Then, a tightening screw 66 is inserted from the screw insertion hole 65, and screwed into the screw hole 62 of the bearing block 58 to be fixed to the chassis 42 by tightening. As a result, the feed screw shaft 52 is horizontally supported by the chassis 42.

On the other hand, the skew adjusting means 5 of the guide shaft 53
As shown in FIG. 1, 7 is disposed across the front and rear ends of the guide shaft 53 and the front and rear portions of the other side surface portion 42 b of the chassis 42 to which the guide shaft 53 is attached. That is, as shown in FIGS. 4 to 6, the guide shaft 53 is brought into sliding contact with a substantially U-shaped guide 51 projecting from the other side of the slide base 47 of the optical pickup device 43. Guide portion 53a having a substantially circular cross section and another side surface portion 42b of the chassis 42
The connecting surface 53b is connected to the mounting surface 53b joined to the inner surface of the
It is formed in a substantially T-shaped cross section connected by c. An axially long jig engaging hole 71 into which a jig to be described later is inserted and engaged is provided at the front end side and the rear end side of the outer surface side of the mounting surface portion 53b of the guide shaft 53, and this jig engagement A jig engaging hole 71 is formed in the other side surface portion 42b of the chassis 42 corresponding to the hole 71.
A jig insertion hole 72 having a diameter larger than the minor diameter of the jig is provided.

A screw hole 73 is formed in the mounting surface portion 53b of the guide shaft 53 near the jig engaging hole 71. The other side surface portion 42b of the chassis 42 corresponds to the screw hole 73. A screw insertion hole 74 having a diameter larger than that of the screw hole 73 is formed. A bearing slide guide 75 into which the front end of the guide shaft 53 is inserted is provided on the inner surface side of the front end of the other side surface portion 42b of the chassis 42 in the vertical direction, that is, like the bearing slide guide 59 of the bearing block 58 described above. The optical pickup device 43 is provided so as to be opened in parallel with the optical axis direction of the objective lens 48. In the illustrated example, the bearing slide guide 75 is provided so that the lower half of the front end of the mounting surface 53b of the guide shaft 53 is fitted.

As described above, the jig engaging hole 71 and the screw hole 73 provided on the guide shaft 53 side and the jig insertion hole 72 and the screw insertion hole 74 provided on the other side surface portion 42b side of the chassis 42.
And the bearing slide guide 75 extends across the other side surface portion 42 b of the chassis 42 and the guide shaft 53.
Is configured.

In order to attach the guide shaft 53 formed as described above to the chassis 42, the optical pickup device 43
The mounting surface 53b is pressed against the inner surface of the other side surface portion 42b of the chassis 42 while the guide 51 is inserted between the guide portions 53a, and the lower end portion of the mounting surface portion 53b is slidable on the bearing slide guide 75. In this state, the screw hole 73 on the mounting surface portion 53b side is communicated with the screw insertion hole 74 on the other side surface portion 42b side of the chassis 42, and a tightening screw 76 is inserted from outside the screw insertion hole 74 into the screw hole. 7
The guide shaft 53 is attached to the chassis 42 in parallel with the feed screw shaft 52 by screwing and tightening the screw 3.

The optical pickup device 43 moves relative to the disk rotation driving mechanism 46 by rotating the feed screw shaft 52 by the stepping motor 55, that is, moves the inner circumference relative to the signal recording surface of the optical disk. Then, recording and / or reproducing of the optical disk is performed by moving in the radial direction between the optical disk and the outer circumference.

The optical pickup device 43
However, when the optical axis of the objective lens 48 does not correspond perpendicular to the signal recording surface of the optical disk and skew occurs, the feed screw shaft 52 and the guide shaft 53 are parallel to the optical disk. The skew of the optical pickup device 43 is adjusted by moving both or one of them up and down.

The skew adjustment is performed by adjusting the skew adjusting means 56 of the feed screw shaft 52 and the skew adjusting means 57 of the guide shaft 53. This adjusting operation is performed by the skew adjusting means 56 of the feed screw shaft 52 by the chassis 4.
A first adjustment rod 81 as a jig is inserted from a jig insertion hole 64 of one side surface portion 42 a of the second 2, and a distal end portion 81 b having a smaller diameter than the shaft portion 81 a is inserted into the shaft engagement hole 61 of the bearing block 58. And the tightening screw 66 is loosened in this state. Even when the tightening screw 66 is loosened, the movement of the bearing block 58 is restricted by the bearing slide guide 59 and does not swing unnecessarily. In this state, the first adjustment rod 81 is moved in the longitudinal direction of the jig insertion hole 64. The bearing block 58 is slid along a bearing slide guide 59 by moving the bearing block up and down in FIG. As the bearing block 58 slides, the feed screw shaft 52 that is supported by the bearing block 58 is tilted, and the skew of the optical pickup device 43 is adjusted. After this adjustment, the screw 66 is tightened to fix the bearing block 58 to the chassis 42, and the feed screw shaft 52 is supported by the chassis 42.

In this adjustment, the tightening position of the tightening screw 66 with respect to the chassis 42 changes. However, the screw insertion hole 65 on the chassis 42 side is a long hole and the short diameter is larger than the screw hole 62 on the bearing block 58 side. Since it is formed, it can be tightened without any trouble in this adjusted state.

The skew adjusting means 5 of the guide shaft 53
7 is performed by inserting the second adjustment rod 82 as a jig from one of the jig insertion holes 72 on the front and rear portions on the other side surface portion 42b side of the chassis 42 and having a smaller diameter than the shaft portion 82a. The eccentric tip 82b having a required eccentric amount is connected to the guide shaft 5
3 is inserted into the jig engaging hole 71, and in this state, the fastening screws 73 on both the front and rear portions are loosened. Also in this case, tightening screw 7
In a state where the guide shaft 53 is loosened, the movement of the guide shaft 53 is restricted by the bearing slide guide 75, and the guide shaft 53 does not swing unnecessarily. In this state, the second adjustment rod 82 is rotated. The rotation of the second adjustment rod 82 is a true circular rotation since the shaft portion 82 is in contact with the jig insertion hole 72 of a perfect circle, and therefore, the eccentric distal end portion 82b rotates eccentrically, and the guide shaft is rotated. The jig engaging hole 71 on the 53 side is pressed on the short diameter side. Thereby, the guide shaft 53
Is tilted to adjust the skew of the optical pickup device 43. After this adjustment, the two fastening screws 76 are tightened to fix the guide shaft 53 to the chassis 42.

Also in this case, the chassis 4 of the tightening screw 76
Although the tightening position with respect to 2 changes, the screw insertion hole 74 on the chassis 42 side is formed to be larger in diameter than the screw hole 73 of the guide shaft 53, so that tightening in the adjusted state can be performed without any trouble.

In the skew adjustment of the guide shaft 53, if the skew adjustment of the optical pickup device 43 is incomplete, the other skew adjustment means 57 performs the same adjustment operation as described above. In addition, the skew adjustment of the optical pickup device 43 can be more completely performed by also performing the skew adjustment of the feed screw shaft 52 described above.

The optical pickup device 43 of this embodiment configured as described above adjusts the skew by adjusting the feed screw shaft 52 and the guide shaft 53 even when the chassis 42 is warped and deformed. Skew adjusting means 56, 5
7 can be reliably performed by adjusting the skew by using the objective lens 48 with respect to the signal recording surface of the optical disk that is rotationally driven by the disk rotational drive mechanism 46.
Can be made to correspond vertically, and recording and / or reproduction can be performed accurately.

Further, the skew adjusting means 56 and 57 of the feed screw shaft 52 and the guide shaft 53 are constructed without adding any components to the chassis 42 and can be adjusted from outside the chassis 42, so that the configuration of the apparatus can be simplified. Operability can be improved.

The embodiment of the present invention has been described above.
The present invention is not limited to this embodiment, but can be variously modified without departing from the gist of the present invention.

For example, in the skew adjusting means 56 on the feed screw shaft 52 side, a long slot-shaped jig engaging hole is formed on the bearing block 58 side in a direction orthogonal to the sliding direction. A jig insertion hole having a perfect circular shape is formed on the chassis 42 side in correspondence with the above, and the bearing block 58 can be slidably adjusted by rotating an adjustment rod having an eccentric tip engagement portion. .

In the skew adjusting means 57 on the guide shaft 53 side, a perfect circular jig engaging hole is formed on the guide shaft 53 side, and the guide shaft 53 is formed on the chassis 42 side corresponding to this engaging hole. A jig insertion hole that is long in the axial direction may be formed and the eccentricity adjustment rod may be used to perform a turning operation. Further, the guide shaft 53 may be configured to be tilted and adjusted with respect to the chassis 42 by the up and down operation of the adjustment rod, similarly to the bearing block 58 described above.

Further, the shape and the like of each component can be arbitrarily changed.

Incidentally, the optical pickup device of the present invention
The present invention can be applied to various optical disk devices such as an optical disk device such as a CD and a magneto-optical disk device.

[0050]

As described above, in the optical pickup device according to the present invention, the skew can be adjusted without adding any member to the chassis side, the number of parts on the chassis can be reduced, and the configuration is simple. It is possible to provide an inexpensive optical disk device with high skew accuracy by simplifying the assembling work.

Further, since the fine adjustment of the skew of the optical pickup device is performed on the chassis without mounting any component having no operation function, there is no need to increase the accuracy of the component, the unit price of the component is reduced, and the cost is advantageous.

According to the present invention, since the skew adjustment of the optical pickup device can be surely performed, the recording and / or reproduction of the optical disk can always be accurately performed, and the reliability is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of an example of a disk drive device provided with an optical pickup device according to the present invention.

FIG. 2 is an exploded perspective view of a bearing portion of a feed screw shaft.

FIG. 3 is a side sectional view illustrating a state of adjustment in which a feed screw shaft is supported in a bearing portion shown in FIG. 2;

FIG. 4 is an exploded perspective view of a mounting portion of a guide shaft.

FIG. 5 is a side sectional view illustrating a state where the guide shaft is attached and adjusted.

FIG. 6 is a cross-sectional view illustrating a state where the guide shaft is mounted and adjusted.

FIG. 7 is a perspective view of a conventional magneto-optical disk device in a partially separated state.

FIG. 8 is a plan view of a conventional two-axis actuator.

[Explanation of symbols]

42 ‥‥ chassis, 43 ‥‥ optical pickup device, 4
6 ‥‥ disk rotation drive mechanism, 47 ‥‥ slide base, 48 ‥‥ objective lens, 50 ‥‥ screw hole, 51 ‥‥ guide, 52 ‥‥ feed screw shaft, 53 ‥‥ guide shaft, 56,
57 ° skew adjusting means, 58 ° bearing block,
59 ° bearing slide guide, 60 ° bearing hole, 6
1 ‥‥ Jig engagement hole, 62 ‥‥ screw hole, 64 ‥‥ jig insertion hole, 65 ‥‥ screw insertion hole, 66 ‥‥ tightening screw, 71 ‥
‥ Jig engagement hole, 72 ‥‥ Jig insertion hole, 73 ‥‥ Screw hole,
74 ‥‥ screw insertion hole, 75 ‥‥ slide guide, 76 ‥
‥ Tightening screw, 81 ‥‥ First adjustment rod, 82 ‥‥ Second adjustment rod

Claims (3)

[Claims] An optical disk guided by a feed mechanism and a guide mechanism disposed on a chassis is moved in parallel with a signal recording surface of an optical disk which is rotationally driven by a rotational drive mechanism, and performs recording and / or reproduction. An optical pickup device, wherein at least one of the feed mechanism and the guide mechanism is provided with skew adjustment means for performing a skew adjustment operation on the chassis from outside. 2. The optical pickup device according to claim 1, wherein the feed mechanism is screwed into a base of the optical pickup device, supported by a chassis via a bearing member, and rotationally driven by a feed motor. A guide shaft having a screw shaft, the guide mechanism being mounted on the chassis and slidably supporting a base of the optical pickup device, at least one of a bearing member of the feed screw shaft and the guide shaft; An optical pickup device provided with the skew adjusting means between the optical pickup device and the chassis. 3. The optical pickup device according to claim 2, wherein the skew adjusting means is formed in a surface of at least one of the bearing member of the feed screw shaft, the guide shaft, and the chassis facing each other. An optical pickup device, comprising: a shape portion; and an operation jig which is inserted into the hole shape portion from the outside and operated.