JPH0439441U

JPH0439441U -

Info

Publication number: JPH0439441U
Application number: JP8243690U
Authority: JP
Priority date: 1990-08-02
Filing date: 1990-08-02
Publication date: 1992-04-03

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の第１の一実施例
を示し、第１図は伸展状態における全体の斜視図
、第２図は短縮状態における全体の斜視図、第３
図は第１図の−線に沿う断面図である。また
、第４図は第２の実施例の斜視図、第５図は第３
の実施例の斜視図である。１……第１のスプリングアセンブリ、２……第
２のスプリングアセンブリ、１１，２１……端部
材、１３，２３……スプリング線、１４，２４，
４４……スペーサ部材、３０……中間部材。 1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a perspective view of the whole in an extended state, FIG. 2 is a perspective view of the whole in a contracted state, and FIG.
The figure is a sectional view taken along the - line in FIG. 1. 4 is a perspective view of the second embodiment, and FIG. 5 is a perspective view of the third embodiment.
1 is a perspective view of an embodiment of the invention. DESCRIPTION OF SYMBOLS 1... First spring assembly, 2... Second spring assembly, 11, 21... End member, 13, 23... Spring wire, 14, 24,
44... Spacer member, 30... Intermediate member.

Claims

[Claims for Utility Model Registration] (1) A plurality of spring wires arranged on the circumferential surface of a cylinder and elastically curved in a spiral shape within the circumferential surface of the cylinder;
a first spring assembly consisting of a spacer member to which these plurality of spring wires are connected, and which holds the spring wires at predetermined intervals and arrangement; A second spring assembly comprising a plurality of elastically curved spring wires and a spacer member connected to each of the plurality of spring wires and holding the spring wires at a predetermined spacing and arrangement; The first spring assembly and the second spring assembly are arranged concentrically, and the outer diameter of the first spring assembly is smaller than the inner diameter of the second spring assembly. an intermediate member disposed between the spring assemblies, the intermediate member having one end of the spring wire of the first spring assembly and one end of the spring wire of the second spring assembly respectively rotating within the cylindrical circumferential surface; The first spring assembly is movably connected to the second spring assembly when the spring assemblies are shortened.
A multiple spring device, characterized in that it is housed inside a spring assembly. (2) The multiple spring device according to claim 1, wherein the intermediate member has a cylindrical shape. (3) One end of the spring wire of the first spring assembly is connected to the inner side of the end of the intermediate member on the second spring assembly side, and one end of the spring wire of the first spring assembly is connected to the inner side of the end of the intermediate member on the second spring assembly side. One end of the spring wire of the second spring assembly is connected to the outside of the end of
When these spring assemblies are shortened, the first spring assembly is housed inside the intermediate member, and the second spring assembly is housed outside the intermediate member. A multiple spring device according to claim 2. (4) The first spring assembly and the second
2. The multiple spring device according to claim 1, wherein the helical winding directions of the helical spring wires of the spring assembly are opposite to each other.