JPS59125260U

JPS59125260U - Chair

Info

Publication number: JPS59125260U
Application number: JP1859783U
Authority: JP
Inventors: 葛西　康男
Original assignee: チトセ株式会社
Priority date: 1983-02-10
Filing date: 1983-02-10
Publication date: 1984-08-23
Also published as: JPH0221961Y2

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]

図面はこの考案の実施例を示すもので、第１図は座体及
び背もたれ板を除去した状態の斜視図、第２図は第１図
■−■線の断面図、第３図は第１図■−■−線の断面図
、第４図は作動状態を示す概略側面図である。１・・・支脚、２・・・昇降用ガススプリング、２ａ・
・・開放ピン、３・・・座骨ハウジング、４・・・前部
座受枠、５・・・ハンドル、６・・・調節ボルト、７・
・・背受枠、７ａ・・・水平部、８・・・後部座受板、
９・・・座体、１０・・・背もたれロッキング用ガスス
プリング、１１゜１２・・・操作レバー、１３・・・係
止機構、３１・・・係止片、３１ａ・・・鉤部、３３・
・・係合ピン。The drawings show an embodiment of this invention. Fig. 1 is a perspective view with the seat and back plate removed, Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a cross-sectional view of the FIG. 4 is a sectional view taken along line 1--2, and FIG. 4 is a schematic side view showing the operating state. 1... Support leg, 2... Lifting gas spring, 2a.
...Release pin, 3...Sit bone housing, 4...Front seat support frame, 5...Handle, 6...Adjustment bolt, 7.
...Back support frame, 7a...Horizontal part, 8...Rear seat support plate,
9... Seat body, 10... Gas spring for backrest locking, 11° 12... Operation lever, 13... Locking mechanism, 31... Locking piece, 31a... Hook portion, 33・
...Engagement pin.

Claims

[Scope of utility model registration request]

A seat bone housing 3 is supported on the upper end of an elevating gas spring 2 incorporated in a support leg 1, and a front seat support frame 4 is provided at the front of the seat bone housing 3 with its base end pivoted so as to be swingable up and down. , and an adjustment bolt 6 having a handle 5 at its lower end, which is attached to the front end of the ischial housing 3 in a manner to prevent vertical movement, is screwed into the front end of the front seat support frame 4, and by rotation of the bolt 6, the front seat is adjusted. The front end of the receiving frame 4 can be set at a variable height position, and the base end of a back supporting frame 7, which has an oval shape in side view, is pivotally attached to the seat bone housing 3. A rear seat support plate 8 is pivotally supported on the horizontal portion 7a, the front and rear surfaces of the seat body 9 are supported on the front end of the front seat support frame 4 and the rear seat support plate 8, and the back support frame 7 and the seat bone housing 3 and a backrest locking gas spring 1 that urges the back support frame 7 in a forward tilting direction by extension action.
0 is provided, and operating levers 11 and 12 are provided for releasing the locked states of the lifting gas spring 2 and the backrest locking gas spring 10, and the operating lever 12 of the backrest locking gas spring 10 is provided with a A chair characterized in that it is equipped with a releasable locking mechanism 13 capable of holding the lever 12 in the unlocked position.