JPH1078068A - Coil spring vibration noise preventing tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To absorb the vibration of a coil spring in the flexibility of a tube which covers the outer periphery of the coil spring when the coil spring is released from a compressive condition or a tense condition, by making the tube own its flexibility. SOLUTION: A tube 20 is a flexible cylindrical body made of a material such as polyvinyl chloride, whose inside diameter is a little larger than the outside diameter of a coil spring 10. The length of the tube 20 is set to such a length as to have no adverse effect upon the operation of the coil spring. The material of the tube 20 may use a flexible one, for example, rubber is acceptable. Color tone may use an arbitrary one. The tube 20 covers the outer periphery of the coil spring 10 in advance and is then built in an apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube which can prevent the generation of vibration noise of a coil spring generated when the coil spring is released from a compressed state or a tensioned state.

[0002]

2. Description of the Related Art Conventionally, in a device utilizing the restoring force of a coil spring, when the coil spring is released from a compressed state or a tensioned state, a vibration sound is generated by the vibration of the coil spring.

[0003]

The vibration sound of the coil spring generated as described above is annoying, and has a problem that the commercial value of the device is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a tube which can prevent the generation of vibration noise of a coil spring generated when the coil spring is released from a compressed state or a tensioned state. To provide.

[0005]

Means for Solving the Problems A tube which is put on the outer periphery of a coil spring is characterized in that the tube has elasticity.

Since the tube is placed on the outer periphery of the coil spring as described above, the vibration of the coil spring can be absorbed by the elasticity of the tube when the coil spring is released from the compressed state or the pulled state. Can be prevented from occurring.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tube for preventing generation of vibration sound of a coil spring according to the present invention will be described below with reference to FIGS. FIG. 1 is a diagram showing a use state of a tube for preventing generation of vibration noise of a coil spring according to the present invention, and FIG. 2 is a sectional view taken along line AA of FIG.

The coil spring 10 is manufactured by spirally winding a metal wire such as a piano wire. The coil spring 10 may be a compression coil spring or a tension coil spring. The shape, material, etc. are arbitrarily selected.

The tube 20 is a resilient cylinder made of, for example, polyvinyl chloride, and has an inner diameter slightly larger than the outer diameter of the coil spring 10. The length of the tube 20 is determined so that the operation of the coil spring 10 is not adversely affected. The material of the tube 20 may be any material having elasticity, and may be, for example, rubber or the like. Further, the color tone may be arbitrary.

The tube 20 is put on the outer periphery of the coil spring 10 in advance, and is then assembled into an apparatus.

[0011]

As described above, since the tube 20 is put on the outer periphery of the coil spring 10, the vibration of the coil spring 10 is absorbed by the elasticity of the tube 20 when the coil spring 10 is released from the compressed state or the pulled state. Therefore, it is possible to prevent the generation of the vibration noise of the coil spring.

[0012]

[Brief description of the drawings]

FIG. 1 is a diagram showing the use state of a tube for preventing the generation of vibration noise of a coil spring according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 10 Coil spring 20 Tube

Claims (1)

[Claims] 1. A tube for preventing the vibration sound of a coil spring, which is a tube (20) put on the outer periphery of a coil spring (10), wherein the tube (20) has elasticity.