JP2588715Y2 - Disc playback 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 reproducing apparatus, and more particularly, to a mounting structure of a guide shaft for guiding a pickup.

[0002]

2. Description of the Related Art Generally, in a disk reproducing apparatus, a pickup is slidably mounted on a pair of guide shafts and reciprocated with respect to a disk by a feed motor. Conventionally, the guide shafts are mounted on the chassis by fixing both ends of the guide shafts to the chassis with screws, or by fixing the guide shafts to the chassis via synthetic resin mounting pieces.

[0003]

However, in such a conventional guide shaft mounting structure, parts such as screws and mounting pieces are required, and the number of parts increases accordingly. In addition, there is a problem that assembling is troublesome, productivity is deteriorated, and costs are increased. The present invention has been made in view of such a conventional problem, and by providing a pressing member for pressing the end of the guide shaft against the chassis, a screw portion is not required for mounting the guide shaft, so that the guide shaft can be easily mounted. It is an object of the present invention to provide a disk reproducing apparatus which can be assembled, thereby reducing costs and improving productivity.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a chassis having a notch at which both ends of a pair of guide shafts for guiding a pickup are engaged, and a cover engaged with and fixed to the chassis to cover the pickup. In the disc reproducing apparatus, the cover is provided with a convex portion which abuts at least one end of both guide shafts and presses and fixes the guide shafts to a chassis.

[0005]

According to the present invention, the guide shaft has its both ends engaged in the notch of the chassis to stop the movement in the axial and lateral directions.
The vertical movement is stopped by the press-contact member, and the press-contact member is securely fixed in the notch.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 4 are views showing a main part of a first embodiment of the disk reproducing apparatus according to the present invention. First, the configuration will be described. FIG. 1 shows the vicinity of the pickup 1 of the disk reproducing apparatus 100. The pickup 1 is slidably mounted on a pair of guide shafts 2 and 2. A rack 3 is fixed to the side of the pickup 1. An opening 5 is formed in the chassis 4. Opposite bent portions 6 and 7 are formed at both ends of the opening 5, and cutouts 8 are formed at corners of the bent portions 6 and 7. 9 are formed. One notch 8, 8
Notch holes 10 and 10 are formed adjacent to the rear part, and downward bent pieces 11 and 11 are formed at the ends of the notches 10 and 10. Downward bent pieces 12, 12 are also formed on the rear end faces of the other cutouts 9, 9, and a bent protruding piece 13 projecting inward is formed at the center between the cutouts 9, 9. .

One end of each of the guide shafts 2 and 2 is engaged with one of the cutouts 8 and 8, and the tip of the guide shaft 2 is in contact with the bent piece 11.
The other end is engaged with the notches 9, 9 facing each other, and the tip is in contact with the bent pieces 12, 12. Thereby, the guide shaft 22 does not move in the axial direction or the lateral direction. Also, a center winding portion 15 of a spring 14, which is a pressing member shown in FIGS. 1 to 3, is attached to the bent protruding piece 13, and presses the guide shafts 2, 2 from above.

Next, the operation will be described. According to the above configuration, since the guide shafts 2, 2 are engaged with the cutouts 9, 9 of the chassis 4 and are fixed downwardly by the springs 14,
Stopping such as screwing becomes unnecessary, and the number of parts can be reduced. In addition, the assembly can be performed simply by attaching the center winding portion 15 of the spring 14 to the bent protruding piece 13 of the chassis 4, and the processing cost can be reduced. , Can greatly improve productivity.

FIGS. 5 to 7 show a second embodiment of the present invention. In the second embodiment, a cover 16 is also used as a press-contact member instead of the spring 14. The cover 16
Has a hook 17 at one end for engaging with the rear surface of the chassis 4.
Are formed on both sides with claws 18 for engaging with the rear surface of the chassis 4, and between the hooks 17, 17 are formed projections 19, 19 which are fitted at positions corresponding to the notches 9, 9. is there. The guide shafts 2, 2 are formed by the convex portions 19, 19.
Is pressed down and fixed. Reference numeral 20 denotes a turntable. The second embodiment is of a type in which a disk is top-loaded, and is particularly effective for a disk reproducing apparatus that requires a cover 16 in appearance, and the same operation and effect as the first embodiment can be obtained.

[0010]

[Effects of the Invention] As described above, according to the present invention,
Since the guide shaft engages with the notch of the chassis and is fixed to the chassis by press contact with the convex portion of the cover, a dedicated member such as a screw is unnecessary, reducing the number of parts and simplifying assembly. Processing cost can be reduced, and productivity can be greatly improved. That is, since the convex portion presses and fixes the guide shaft to the chassis at the same time when the cover is attached to the chassis, the simplification of assembly is greatly achieved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a first embodiment of a disk reproducing apparatus according to the present invention.

FIG. 2 is a plan view of the embodiment shown in FIG. 1 after assembly.

FIG. 3 is a sectional view taken on line AA of FIG. 2;

FIG. 4 is a front view of the embodiment shown in FIG. 1;

FIG. 5 is an exploded perspective view showing a second embodiment of the present invention.

6 is a sectional view of the embodiment shown in FIG. 5 after assembly.

FIG. 7 is a cross-sectional view of the embodiment shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pickup 2 Guide shaft 4 Chassis 5 Opening 8, 9 Notch 14 Spring (pressure contact member) 16 Cover (pressure contact member)

Claims (1)

(57) [Scope of request for utility model registration] 1. A a chassis having a notch in which both ends of the pair of guide shafts for guiding the pickup is engaged, said Shah
A cover that is fixedly engaged with the chassis and covers the pickup;
A disc reproducing apparatus comprising: a disc having a cover provided with a projection which abuts at least one end of both guide shafts and presses and fixes the guide shafts to a chassis. Playback device.