JPS5918955U

JPS5918955U - seat elastic adjustment device

Info

Publication number: JPS5918955U
Application number: JP11497382U
Authority: JP
Inventors: 菅生　六夫
Original assignee: しげる工業株式会社
Priority date: 1982-07-30
Filing date: 1982-07-30
Publication date: 1984-02-04

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図は座席の背もた
れ部の内部構造を示す正面図、第２図は弾性調節装置の
平面図、第３図は同正面図、第４図は第３図中ＩＶ−Ｉ
Ｖ線に沿う縦断面図、−第５図ａ。ｂないし第７図ａ、　　ｂは調節装置のカム作用を順を
追って説明する図であってそれぞれａ図は第３図相当図
、ｂ図は第４図相当図である。１・・・枠体、３・・・Ｓ形ばね、５・・・調節装置、
８・・・回動体、９・・・孔（ばね支持部）、１０・・
・カム面、１１・・・回動シャフト、１２・・・作動子
、１３・・・レバー（操作部材）。The drawings show an embodiment of the present invention, in which Fig. 1 is a front view showing the internal structure of the backrest of the seat, Fig. 2 is a plan view of the elastic adjustment device, Fig. 3 is a front view of the same, and Fig. 4 is a front view showing the internal structure of the seat back. IV-I in Figure 3
Longitudinal section along the V line - FIG. 5a. Figures b to 7 a and b are diagrams illustrating the cam action of the adjusting device step by step, with figure a corresponding to figure 3 and figure b corresponding to figure 4, respectively. DESCRIPTION OF SYMBOLS 1... Frame body, 3... S-shaped spring, 5... Adjustment device,
8... Rotating body, 9... Hole (spring support part), 10...
- Cam surface, 11... Rotating shaft, 12... Operator, 13... Lever (operating member).

Claims

[Claims for Utility Model Registration] A device for adjusting the elasticity of a spring tensioned between the frame bodies of a seat, wherein (a) the rotation axis on the frame side is substantially perpendicular to the direction in which the spring is tensioned; a rotating body that is rotatably supported and has a spring support part and a cam surface that supports one end of the spring; (b) a rotating shaft disposed approximately parallel to the tensioning direction of the spring; ) an actuator fixed to the rotating shaft and in contact with a cam surface of the rotating body; and (2) an operating member attached to an outer end of the rotating shaft, the operating member is configured to rotate. 1. A seat elasticity adjusting device, characterized in that elasticity is adjusted by rotating a rotating body through a cam action between an actuator and a cam surface and changing the tension length of a spring.