JPS59189562U

JPS59189562U - Chair

Info

Publication number: JPS59189562U
Application number: JP8432783U
Authority: JP
Inventors: 恒太郎伊藤
Original assignee: タカノ株式会社
Priority date: 1983-06-02
Filing date: 1983-06-02
Publication date: 1984-12-15
Also published as: JPH0510684Y2

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図は本考案の椅子の座板下部近傍の一部破断乎面図
、第２図は本考案の椅子の一部省略正面図、第３図は第
１図の椅子の操作レバー近傍の概略的な説明図、第４図
は平常状態にある椅子に腰掛けた場合の状況説明図、第
５図は第４図の状態にある本考案の椅子の多関節リンク
機構の配置状態を示す正面図、第６図は作業状態にある
椅子に腰掛けた場合の状況説明図゛、第７図は第６図の
状態の場合の本考案の多関節リンク機構の配置状態を示
す正面図である。１０・・・・・・脚柱、１２・・・・・・支持枠、１４
・・・・・・座板、１６ａ、１６ｂ・・・・・・棒状金
具、１８・・・・・・Ａ軸、２０ａ、２０ｂ・・・・・
・背支桿、２２・・・・・・Ｂ軸、２４・・・・・・リ
ンク、２６・・・・・・Ｃ軸、２Ｂ・・・・・・Ｄ軸、
３０・・・・・・伸縮体、３２・・・・・・Ｅ軸、３４
・・・・・・Ｆ軸、３６・・・・・田ツク機構、３８・
・・・・・支持金具、４０・・・・・・軸、４２・・・
・・・操作レバー、４４・・・・・・作動レバー、４６
・・・・・・解除レバー、４８・・・・・・平面部分。Fig. 1 is a partially cutaway view of the chair of the present invention near the lower part of the seat plate, Fig. 2 is a partially omitted front view of the chair of the present invention, and Fig. 3 is the vicinity of the operating lever of the chair of Fig. 1. A schematic illustration, FIG. 4 is a diagram explaining the situation when sitting on the chair in a normal state, and FIG. 5 is a front view showing the arrangement of the multi-joint link mechanism of the chair of the present invention in the state shown in FIG. 4. 6 is an explanatory diagram of the situation when the user is seated on a chair in a working state, and FIG. 7 is a front view showing the arrangement of the multi-joint link mechanism of the present invention in the state shown in FIG. 6. 10... Pillar, 12... Support frame, 14
... Seat plate, 16a, 16b ... Bar metal fittings, 18 ... A axis, 20a, 20b ...
・Dorsal support rod, 22...B axis, 24...Link, 26...C axis, 2B...D axis,
30...Extensible body, 32...E axis, 34
...F axis, 36...Tatsuk mechanism, 38.
...Supporting metal fittings, 40...Shaft, 42...
...Operation lever, 44...Operating lever, 46
...Release lever, 48...Flat part.

Claims

[Claims for Utility Model Registration] 1. A seat portion is pivotally attached to the upper end of a pillar so that it can tilt forward,
In a chair that stands upright with a back support rod attached to the rear of the seat so that it can be tilted at a predetermined angle in the front-rear direction of the seat, and a backrest attached to the back support rod, the midway part of the seat supports the seat on a pillar. A link is constructed between the end of the back support rod and the midway part of the pillar, which is located between the A axis of The parts are pivotally connected to the seat part and the pillar via the C axis and the D axis, respectively, and within a predetermined range where a biasing force is applied to extend between the midway part of the pillar and the midway part of the back support rod. 1. A chair characterized in that a telescoping body is constructed, and both ends of the telescoping body are pivotally connected to a leg column and a back support rod via an E axis and an F axis, respectively. 2. The chair according to claim 1 of the utility model registration claim, in which the extensible body is releasably locked in a compressed state of the shortest length. 3. The chair according to claim 1, which is a registered utility model, in which the extensible body is releasably locked in a compressed state of an arbitrary length.