JPS6443749U

JPS6443749U -

Info

Publication number: JPS6443749U
Application number: JP13907387U
Authority: JP
Priority date: 1987-09-11
Filing date: 1987-09-11
Publication date: 1989-03-15
Also published as: JPH0415082Y2

Description

[Brief explanation of the drawing]

第１図は本考案装置の斜視図、第２図は第１図
における―線断面図、第３図は要部の拡大断
面図、第４図は第２図に示す操作部の斜視図、第
５図は第４図に示す操作ハンドルと操作軸との斜
視図、第６図は第３図の―線に沿う断面図、
第７図は本案装置を備えたシートバツクの断面図
、第８図はこの種の従来品の断面図である。図中、１６，１７はサイドフレーム、１８はバ
ツクフレーム、２０はホルダー、２２は操作軸、
２３は操作軸の螺部、２４はナツト、２５はブラ
ケツト、２６はガイドブラケツト、２８は円筒部
材、３１は操作ハンドル。 FIG. 1 is a perspective view of the device of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, FIG. 3 is an enlarged sectional view of the main parts, and FIG. FIG. 5 is a perspective view of the operating handle and operating shaft shown in FIG. 4, and FIG. 6 is a sectional view taken along the line - in FIG. 3.
FIG. 7 is a sectional view of a seat bag equipped with the device of the present invention, and FIG. 8 is a sectional view of a conventional product of this type. In the figure, 16 and 17 are side frames, 18 is a back frame, 20 is a holder, 22 is an operating shaft,
23 is a threaded portion of the operating shaft, 24 is a nut, 25 is a bracket, 26 is a guide bracket, 28 is a cylindrical member, and 31 is an operating handle.

Claims

[Scope of utility model registration request]

An operating shaft is rotatably installed between a bracket fixed to the back frame in the side of the seat back and a guide bracket fixed to this bracket and having a bearing section parallel to the bracket at its tip. an end portion protruding from inside the side portion of the seat back to the outside, and a threaded portion provided on the operating shaft between the bearing portions of the bracket and the guide bracket;
A nut is screwed into the threaded portion, and a holder integrated with a swingable side frame is provided on the nut, and the angle of the side frame is adjusted by moving the nut in the axial direction by rotation of the operating shaft. In the side support device which supports the body of a seated person by swinging the side portion of the seat back, a cylindrical member for rotatably holding the operating shaft is fixed to the bracket, and a cylindrical member is fixed to the outer circumferential surface of the cylindrical member. An operation having a threaded portion formed therein, protruding outward from the inside of the seat back side in the axial direction of the operation shaft, engaging with an end of the operation shaft, and having a hole formed in the axial direction of the operation shaft. When the handle is screwed into the threaded portion of the cylindrical member and the operating handle is rotated to rotate the operating shaft, the operating handle moves along the cylindrical member in a direction in which the side portion of the seat back swings. The side support device is characterized in that the generation of a gap between the operating handle and the side portion of the seat back is prevented.