Title:
LEAN-BACK ADAPTIVE OFFICE CHAIR WITH HIGH PERFORMANCE
Document Type and Number:
WIPO Patent Application WO/2023/103036
Kind Code:
A1
Abstract:
A lean-back adaptive office chair with high performance, the office chair comprising a seat (1), a backrest support (2), a bottom plate (3), armrest support rods (4), a headrest (10), a seat cushion (11), a backrest (12), a caster device (13) and armrests (14), the bottom plate (3) being slidably mounted to the seat (1), the armrests (14) being mounted to the armrest support rods (4), the seat cushion (11) being mounted to the bottom plate (3) and movable with the bottom plate (3), and the caster device (13) being fixedly connected to the seat (1); and further comprising a linkage mechanism, which is connected among the seat (1), the backrest support (2), the bottom plate (3) and the armrest support rods (4) and comprises a connection and transmission member (5), a first transmission connecting rod (6), a second transmission connecting rod (7) and a linkage assembly (8), the connection and transmission member (5) being connected to the backrest support (2), the connection and transmission member (5) being connected to the armrest support rods (4) by means of the first transmission connecting rod (6), the second transmission connecting rod (7) being connected to the bottom plate (3), and the bottom plate (3) being slidably mounted to the seat (1) by means of the linkage assembly (8). When the backrest leans back, the bottom plate (3) is pushed forwards, so that the angle between the backrest and the bottom plate (3) can be adjusted, and the center of gravity of a human body can move forwards with the bottom plate (3), so as to prevent the chair from tipping backwards, thereby ensuring the safety and effectively improving the usage experience of a user.
Inventors:
MAO HUAZHONG (CN)
HE ZHENGTANG (CN)
LV GUOWEI (CN)
GONG LIYA (CN)
ZHU CHENG (CN)
HE ZHENGTANG (CN)
LV GUOWEI (CN)
GONG LIYA (CN)
ZHU CHENG (CN)
Application Number:
PCT/CN2021/139134
Publication Date:
June 15, 2023
Filing Date:
December 17, 2021
Export Citation:
Assignee:
ANJI FUHE FURNITURE CO LTD (CN)
International Classes:
A47C1/032
Foreign References:
| TWM254952U | 2005-01-11 | |||
| CN106263726A | 2017-01-04 | |||
| CN106263727A | 2017-01-04 | |||
| CN208403765U | 2019-01-22 | |||
| CN103431666A | 2013-12-11 | |||
| CN209573969U | 2019-11-05 | |||
| CN203952966U | 2014-11-26 | |||
| CN212489206U | 2021-02-09 | |||
| JPH0767739A | 1995-03-14 | |||
| JP2003111636A | 2003-04-15 |
Attorney, Agent or Firm:
ZHEJIANG KG IP LAW FIRM (CN)
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