JPS58166754U

JPS58166754U - seat structure

Info

Publication number: JPS58166754U
Application number: JP6407682U
Authority: JP
Inventors: 耕増田
Original assignee: 日本発条株式会社
Priority date: 1982-05-01
Filing date: 1982-05-01
Publication date: 1983-11-07

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]

第１図は本考案による実施例を示す要部の斜視図、第２
図は第１図の分解斜視図、第３図は本考案による作動状
態を説明する要部の横断面図である。１・・・シートバックフレーム、２・・・ロアーアーム
、３・・・スプリング、４・・・貫通孔、５・・・ラン
バー、６・・・腰椎部支持部材、７・・・板ばね、７ａ
・・・折り曲げ部、８・・・取付孔、９・・・ボルト、
１０・・・可動ナツト、１１・・・ハンドル、１２・・
・段付シャフト、１２ａ・・・ねじ部、１３・・・スト
ッパーナツト。Fig. 1 is a perspective view of the main parts showing an embodiment of the present invention;
The figure is an exploded perspective view of FIG. 1, and FIG. 3 is a cross-sectional view of the main parts for explaining the operating state of the present invention. DESCRIPTION OF SYMBOLS 1... Seat back frame, 2... Lower arm, 3... Spring, 4... Through hole, 5... Lumbar, 6... Lumbar support member, 7... Leaf spring, 7a
...Bent part, 8...Mounting hole, 9...Bolt,
10...Movable nut, 11...Handle, 12...
- Stepped shaft, 12a...threaded part, 13...stopper nut.

Claims

[Scope of utility model registration request]

A bent part of a leaf spring with a lumbar support member such as a cushion material fixed to the center is located between the left and right sides of the seatback frame corresponding to the lumbar region, and the two ends are fixed to the seatback frame. The other end of the stepped shaft is clamped by a movable nut, and the threaded portion of the stepped shaft to which the handle is fixed is screwed into the movable nut from the outside of the seat back frame, and by rotation of the handle, the leaf spring is integrally attached to the movable nut. A seat structure characterized in that the seat can be bent in the front-rear direction.