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1. (WO2018157781) CHAIR WITH LUMBAR SUPPORT ADJUSTING FUNCTION

Pub. No.:    WO/2018/157781    International Application No.:    PCT/CN2018/077355
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Wed Feb 28 00:59:59 CET 2018
IPC: A47C 7/40
Applicants: ZHEJIANG HENGLIN CHAIR INDUSTRY CO., LTD.
浙江恒林椅业股份有限公司
Inventors: WANG, Jianglin
王江林
LIU, Guanhua
刘冠华
WANG, Zhengxing
王郑兴
WANG, Xing
王星
GE, Guoming
葛国明
XIA, Zhongfang
夏中方
Title: CHAIR WITH LUMBAR SUPPORT ADJUSTING FUNCTION
Abstract:
A chair with a lumbar support adjusting function, comprising a chair back (1), a seat (4), and bottom legs. A cavity (8) is provided on the chair back (1); a supporting member (2) is mounted on the upper part in the cavity (8) by means of a folding device (3); the folding device (3) comprises a fixing base (30) and connecting arms (35); fixing arms (32) are provided on the fixing base (30); the fixing arms (32) are hinged with the connecting arms (35); and at least two connecting arms (35) are fixed by means of a rigid connecting block (36) for synchronous movement; the fixing base (30) is fixed to the chair back (1); the rigid connecting block (36) is fixed to the supporting member (2). According to the invention, the cavity (8) is provide on the chair back (1), and the supporting member (2) is mounted in the cavity (8) and is hinged with the chair back (1) by means of the folding device (3), so that lumbar support of the chair back (1) can be adjusted; moreover, the plurality of connecting arms (35) of the folding device (3) are fixed for synchronous movement, thereby reducing the shaking risk of the supporting member (2) during use.