Title:
WAIST SUPPORTING CHAIR
Document Type and Number:
WIPO Patent Application WO/2018/133616
Kind Code:
A1
Abstract:
A waist supporting chair comprises: a waist support (5) and an air spring (12). When back and waist portions of a human body move, the waist support (5) is configured to tightly fit, by compression and expansion of the air spring (12), the back and waist portions of the human body, so as to provide a continuous and uniform supporting force. When the user moves forwards or backwards in the chair, the waist support can tightly fit the back and waist portions of the human body so as to move synchronously, fitting the waist portion quickly, and increasing the supporting force for the waist portion of the human body.
Inventors:
OU YAPING (CN)
WU QINGSONG (CN)
WU QINGSONG (CN)
Application Number:
PCT/CN2017/117472
Publication Date:
July 26, 2018
Filing Date:
December 20, 2017
Export Citation:
Assignee:
OU YAPING (CN)
WU QINGSONG (CN)
WU QINGSONG (CN)
International Classes:
A47C7/40
Foreign References:
| CN105686434A | 2016-06-22 | |||
| CN101478896A | 2009-07-08 | |||
| CN202567211U | 2012-12-05 | |||
| CN205321832U | 2016-06-22 | |||
| CN2749374Y | 2006-01-04 | |||
| US7303232B1 | 2007-12-04 |
Attorney, Agent or Firm:
HANGZHOU KG IP LAW FIRM (CN)
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