JPH054368U - Guide shaft mounting device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a guide shaft mounting device with good workability. [Structure] The guide shaft 11 is connected to the first support portion 14 and the second support portion 14.
When supporting between the support portions 16, the guide shaft 11
A small portion 12 having a small diameter is coaxially provided at one end of the first supporting portion 14, and a small hole 15 having a smaller diameter than the small portion 12 is formed in the first support portion 14, and a large hole 17 having a smaller diameter than the guide shaft 11 is formed. Is formed in the second support portion 16, and the guide shaft 11 is formed in the large hole 17 in the order of the details 12.
The small portion 12 is pressed into the small hole 15 while being penetrated from the side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a guide shaft mounting device for guiding the sliding of a pickup.

[0002]

[Prior Art]

 2. Description of the Related Art There is known an optical disc player that optically reproduces a signal recorded on a disc by using an optical pickup. Most of the optical disc players have two guide shafts, which are parallel to each other, mounted on a base (chassis) as shown in, for example, Japanese Utility Model Laid-Open No. 63-55265, and an optical pickup is provided by the guide shaft. Is guided so that it can slide.

By the way, as a guide shaft attachment device for attaching the guide shaft to the base, there is a conventional device as shown in FIG. 3, for example. In FIG. 3, 1 is a chassis formed by pressing a metal plate, 2 is a protrusion formed by bending a part of the chassis 1, 3 is a guide shaft, 4 is the guide shaft 3 The plate spring 4 is fixed to the chassis 1 with a screw 5 so that the guide shaft 3 is sandwiched between the plate panel 4 and the upper surface of the chassis 1 and the projection 2. The guide shaft 3 is attached to the chassis 1 in a complicated manner.

In such a guide shaft mounting device, the guide shaft 3 can be easily positioned by the upper surface of the chassis 1 and the side surface of the protrusion 2.

[0005]

[Problems to be solved by the device]

 However, since the guide shaft mounting device shown in FIG. 3 requires two types of mounting members, a leaf spring and a screw, as separate components, there is a problem in workability.

[0006]

Means for Solving the Problems The present invention provides a guide shaft mounting device made in view of the above-mentioned points, in which one end of the guide shaft is coaxially provided with a small-diameter detail. A small hole having a diameter smaller than the details is formed, and a first support portion for supporting one of the guide shafts is provided upright from the chassis surface and has a diameter smaller than that of the guide shaft. A large hole with a small size is formed, and a second support portion for supporting the other of the guide shafts is provided upright from the chassis surface.

[0007]

[Action]

 According to the present invention, when the guide shaft is supported between the first and second support portions, the guide shaft is formed on the second support portion with the details formed on one end of the guide shaft first. The small hole is made to penetrate through the hole, and the details are press-fitted into the small hole formed in the first supporting portion, and the guide shaft is fixed by the first supporting portion. The guide shaft is positioned by the large hole.

[0008]

【Example】

 FIG. 1 is an exploded perspective view showing an embodiment of the present invention. In the figure, 11 is a stainless steel guide shaft, and a small-diameter detail 12 is coaxially formed at one end.

Reference numeral 13 denotes a chassis to which the guide shaft 11 is attached, which is formed of a galvanized steel plate.

Reference numeral 14 is a first support portion provided by cutting and raising a part of the chassis 13 to support one of the guide shafts 11 and erected from the chassis surface. However, small holes 15 are formed.

Reference numeral 16 denotes a second support portion that is provided by cutting and raising a part of the chassis 13 so as to support the other of the guide shafts 11, and has a diameter smaller than that of the guide shaft 11. A large hole 17 is formed. The second support portion 16 is arranged to face the first support portion 14 with a distance slightly shorter than the length of the guide shaft 11, and the large hole 17 and the small hole 15 have central axes. It is formed so as to be on the same straight line.

When the guide shaft 11 is attached to the chassis 13, the guide shaft 11 is inserted from the large hole 17 with the detail 12 first, and the pressure in the inserting direction is applied to the guide shaft 11, so that the guide shaft 11 is attached. Installation of 11 to the chassis 13 is completed. In this case, since the diameter of the large hole 17 is smaller than that of the guide shaft 11, the guide shaft 11 is inserted through the large hole 17 so that the detail 12 is the small hole 15 of the first support portion 14. It is easily displaced to the point where it reaches the opening. Then, thereafter, by applying a pressure in the insertion direction to the guide shaft 11, the detail 12 spreads out the small hole 15, and as shown in the plan view of FIG. The guide shaft 11 is inserted and the attachment of the guide shaft 11 to the chassis 13 is completed.

When the guide shaft 11 is attached to the chassis 13, the details 12 are fitted in the small holes 15, and the guide shaft 11 is fixed to the chassis 13. Here, it is sufficient to form the large hole 17 by providing the diameter of the large hole 17 to the minimum necessary size for allowing the guide shaft 11 to penetrate, that is, providing a margin of clearance for allowing the guide shaft 11 to penetrate. The guide shaft 11 can be positioned. In this case, the grease applied to the inner wall of the large hole 17 serves to help the guide shaft 11 pass through the large hole 17 and also serves to prevent the guide shaft 11 from rattling.

[0014]

[Effect of the device]

 As described above, according to the present invention, it is possible to provide a guide shaft mounting device capable of securely mounting the guide shaft to the chassis without using any separate part.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a state in which a guide shaft is attached.

FIG. 3 is a partial perspective view showing a conventional guide shaft attachment device.

[Explanation of symbols]

 11 Guide Shaft 12 Detail 13 Chassis 14 First Supporting Part 15 Small Hole 16 Second Supporting Part 17 Large Hole

Claims (1)

[Claims for utility model registration] [Claim 1] A guide shaft mounting device for mounting a guide shaft for guiding a slide of a pickup to a chassis, wherein a small-diameter detail is coaxially provided on one end of the guide shaft. A small hole having a diameter smaller than the details is formed, and a first support portion for supporting one of the guide shafts is provided by being erected from the chassis surface,
In addition, a large hole having a diameter slightly smaller than that of the guide shaft is formed, and a second support portion for supporting the other of the guide shaft is provided so as to stand from the chassis surface.
An apparatus for mounting a guide shaft, wherein the guide shaft is penetrated through the large hole first with the details, and the details are press-fitted into the small hole.