JP2996850B2 - Optical disk player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an optical disk player, and more particularly, to a loading mechanism and a disk clamp mechanism.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a disk loading device and a disk clamping device of an optical disk player proposed in Japanese Utility Model Laid-Open No. 3-49651. 1 shown in the figure
Is a loading roller.

The loading roller 1 is composed of a guide plate 2
The optical disk 13 is sandwiched between the guide plate 2 and the optical disk 13 and is loaded onto the turntable 3 or discharged out of the housing.

The clamper 4 is held by a clamper holder 5 and clamps the optical disk 13 on a turntable 3 fixed to a rotating shaft of a disk motor. The clamper holder 5 is rotatably supported by a chassis via a shaft 5a, and is urged by a torsion coil spring 6 in a clockwise direction, that is, in a disk clamping direction.

[0005]

In the above-mentioned conventional optical disk player, the spring for urging the loading roller 1 and the spring for urging the clamper holder 5 are separately provided, so that the number of parts is increased. In addition, there is a problem in that the number of laborious steps of mounting the spring increases.

In the above-mentioned conventional optical disk player, a member for mounting a guide plate 2 for guiding an optical disk sent by a loading roller 1 to a jersey is required, or the guide plate 2 itself is formed into a shape that can be mounted on a chassis. I had to.

Accordingly, the number of parts has increased, or the guide plate 2 has become expensive, resulting in high manufacturing costs. In addition, since the guide plate 2 is attached separately from other components, effective use of space is limited.

The present invention has been made in view of the above points, and an object of the present invention is to provide an optical disk player in which the number of parts and the number of assembling steps are reduced.

Another object of the present invention is to provide an optical disk player which can be downsized by effectively utilizing a space.

[0010]

An optical disk player according to the present invention is provided with a clamper holder rotatably supported to hold a clamper and a rotatably supported clamper facing a clamp surface of the clamper. A roller holder rotatably supporting the loaded roller, and the clamper holder and the clamper holder are provided in a direction between the clamper holder and the roller holder so as to restrict the clamp surface and the loading roller from separating from each other. It is characterized by comprising an urging means for urging the roller holder.

[0011] In the optical disk player,
The urging means urges the roller holder in a direction in which the loading roller presses the disk with the retraction of the clamper from the disk during non-loading of the disk, and the clamper with the retraction of the roller holder from the disk during the disk loading. The holder is configured to urge the holder in a direction in which the disc is clamped.

In each of the optical disk players, at least one of the roller holder and the clamper holder is supported on the disk entrance side of the turntable.

In each of the optical disk players, at least one of the roller holder and the clamper holder is supported by a chassis.

Further, in each of the optical disk players, a guide plate for guiding the disk at the time of loading the disk is integrally mounted on the clamper holder.

[0015]

According to the optical disk player of the first aspect, a clamper holder rotatably supported and holding a clamper, and a loading rotatably supported and disposed on a side opposed to a clamp surface of the clamper. A roller holder rotatably supporting the roller, and a biasing means provided between the clamper holder and the roller holder for biasing the clamper holder and the roller holder in a direction for limiting the separation between the clamp surface and the loading roller. Is provided, the number of urging means for urging the roller holder and the clamper holder can be reduced, and the number of parts can be reduced. Also,
The number of steps for mounting the urging means is reduced, and the manufacturing cost of the entire apparatus is reduced.

According to the optical disk player of the second aspect,
The urging means urges the roller holder in a direction in which the loading roller presses the disk with the retraction of the clamper from the disk when the disk is not loaded, and presses the clamper holder with the retraction of the roller holder from the disk during the disk loading. Since the clamper urges the disc in the clamping direction, the number of urging means for urging the roller holder and the clamper holder can be reduced, and the number of parts can be reduced. Also, the number of steps for mounting the urging means is reduced, and the manufacturing cost of the entire apparatus is reduced.

According to the optical disk player of the third aspect,
Since at least one of the roller holder and the clamper holder is supported on the disk entrance side with respect to the turntable, the device can be downsized by effectively utilizing the space.

According to the optical disk player of the fourth aspect,
Since at least one of the roller holder and the clamper holder is supported by the chassis, it is firmly supported by the chassis, so that the disc is less likely to be displaced at the time of loading, which is advantageous for earthquake resistance.

According to the optical disk player of claim 5,
Since the guide plate for guiding the disc during disc loading is integrally attached to the clamper holder, no special parts or steps are required for attaching the guide plate to the chassis. In addition, the guide plate itself can have a small structure, and the cost of parts and the number of assembly steps can be reduced. Further, the guide plate and the clamper holder are in close contact with each other, and the space can be effectively used, so that the apparatus can be downsized.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An on-vehicle optical disc player according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a main part of an optical disk player according to an embodiment of the present invention. The loading roller 1 shown in the figure is rotatably supported by a roller holder 9 and is driven to rotate by a driving mechanism (not shown).

The roller holder 9 has a shaft 9 erected thereon.
a and 9a rotatably supported by the chassis 7. A clamper holder 5 for holding the clamper 4 is rotatably supported by a chassis 7 via shafts 5a, 5a provided upright on the clamper holder 5.

The guide plate 2 made of a synthetic resin is fitted on a clamper holder 5. Tension coil springs 10, 10 are hung between the clamper holder 5 and the roller holder 9, and the tension coil springs 10, 10 urge the clamper holder 5 downward and the roller holder 9 upward.

The slider 11 is supported by the chassis 7 so as to be movable in the front-rear direction, and is driven in the front-rear direction by a driving mechanism (not shown). The bent portion 9b of the roller holder 9 faces the end 11b of the slider 11, and the roller holder 9 is turned downward (clockwise in the drawing) by the forward (lower left in the drawing) movement of the slider 11. Be moved. The pin 5b provided upright on the clamper holder 5 is pressed against a cam 11a provided on the slider 11, and the clamper holder 5 is moved upward (counterclockwise in FIG. Direction).

The disk motor 8 is fixed to the chassis 7, and the turntable 3 fixed to the rotating shaft is located below the clamper 4.

In the above configuration, when the optical disk is not loaded in the apparatus, the slider 11 is located at the rear, and the clamper holder 5 is mounted on the cam 1 of the slider 11.
1a. Further, the roller holder 9 separates from the slider 11 due to the retreat of the end 11b of the slider 11, and the tension coil spring 1
It is raised upward by 0,10.

The above state is shown in FIG. In this state, the optical disk 13 inserted between the loading roller 1 and the guide plate 2 is sent above the turntable 3. In this manner, the optical disk is loaded, and the contact pressure between the loading roller 1 and the optical disk 13 at that time is given by the tension coil springs 10, 10.

When the detection device (not shown) detects that the optical disk has been fed to the predetermined position, the driving mechanism drives the slider 11 forward. Then, the roller holder 9 is pressed by the end 11 b of the slider 11 and turned downward against the elasticity of the tension coil springs 10, 10.
Move away from

When the cam 11a retreats with respect to the pin 5b, the clamper holder 5
It is turned downward by the urging force of 0,10. The clamper pressing plate 12 fastened to the clamper holder 5 presses the center projection of the clamper 4, and the clamper 4 clamps the optical disc to the turntable 3.

The loading roller 1 is also rotating downward during the downward rotation of the clamper, and is further rotated downward from the state where the optical disk 13 is placed on the turntable 3 to stop at a position where it does not interfere with the optical disk 13. .

The above state is shown in FIG. The optical disk 13 is played with the optical disk 13 clamped to the turntable 3 in this manner.

When the performance of the optical disk is completed, the slider 11 is driven backward, and the clamper holder 5 and the roller holder 9 are rotated upward to be in the state shown in FIG. In this state, the optical disk 13 is sandwiched between the loading roller 1 and the guide plate 2, and the loading roller 1
Rotation of the optical disk 13 in the opposite direction to the loading
Is discharged out of the apparatus.

[0032]

According to the optical disk player of the present invention, the clamper holder rotatably supported and holding the clamper and the rotatably supported clamper are disposed on the side facing the clamp surface. A roller holder rotatably supporting the loaded roller, and a biasing means provided between the clamper holder and the roller holder for urging the clamper holder and the roller holder in a direction for limiting the separation between the clamping surface and the loading roller. Since the urging means is provided, the number of urging means for urging the roller holder and the clamper holder can be reduced, and the number of parts can be reduced. Further, the number of steps for mounting the urging means is reduced, and the manufacturing cost of the entire apparatus is reduced.

According to the optical disk player of the second aspect,
The urging means urges the roller holder in a direction in which the loading roller presses the disk with the retraction of the clamper from the disk when the disk is not loaded, and presses the clamper holder with the retraction of the roller holder from the disk during the disk loading. Since the clamper urges the disc in the clamping direction, the number of urging means for urging the roller holder and the clamper holder can be reduced, and the number of parts can be reduced. Also, the number of steps for mounting the urging means is reduced, and the manufacturing cost of the entire apparatus is reduced.

According to the optical disk player of the third aspect,
Since at least one of the roller holder and the clamper holder is supported on the disk entrance side with respect to the turntable, the device can be downsized by effectively utilizing the space.

According to the optical disk player of the fourth aspect,
Since at least one of the roller holder and the clamper holder is supported by the chassis, it is firmly supported by the chassis, so that the disc is less likely to be displaced at the time of loading, which is advantageous for earthquake resistance.

According to the optical disk player of claim 5,
Since the guide plate for guiding the disc during disc loading is integrally attached to the clamper holder, no special parts or steps are required for attaching the guide plate to the chassis. In addition, the guide plate itself can have a small structure, and the cost of parts and the number of assembly steps can be reduced. Further, the guide plate and the clamper holder are in close contact with each other, and the space can be effectively used, so that the apparatus can be downsized.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of an optical disk player according to an embodiment of the present invention.

FIG. 2 is a side view showing parts of the optical disc player in a see-through manner.

FIG. 3 is a side view showing another state of the optical disc player.

FIG. 4 is a side view showing an example of a conventional optical disc player.

[Explanation of symbols]

 Reference Signs List 1 loading roller 2 guide plate 3 turntable 4 clamper 5 clamper holder, 5a shaft, 5b pin 6 torsion coil spring 7 chassis 8 disk motor 9 roller holder, 9a shaft, 9b bent portion 10 tension coil spring 11 slider, 11a cam, 11b end

Claims (5)

(57) [Claims] 1. A clamper holder rotatably supported to hold a clamper, and a roller rotatably supported to rotatably support a loading roller disposed on a side facing a clamp surface of the clamper. A holder, and biasing means provided between the clamper holder and the roller holder, for urging the clamper holder and the roller holder in a direction that restricts the clamp surface and the loading roller from separating from each other. An optical disc player, characterized in that: And a biasing means for urging the roller holder in a direction in which the loading roller presses the disk with the retraction of the clamper from the disk during non-loading of the disk. 2. The optical disk player according to claim 1, wherein the retractor urges the clamper holder in a direction in which the clamper clamps the disk. 3. The optical disk player according to claim 1, wherein at least one of the roller holder and the clamper holder is supported on a disk entrance side of a turntable. 4. The optical disk player according to claim 1, wherein at least one of said roller holder and said clamper holder is supported by a chassis. 5. The optical disk player according to claim 1, wherein a guide plate for guiding the disk during disk loading is integrally mounted on the clamper holder.