Title:
SEAT HARDNESS ADJUSTMENT DEVICE, SEAT COMFORT ADJUSTMENT DEVICE, AND VEHICLE SEAT
Document Type and Number:
WIPO Patent Application WO/2021/093358
Kind Code:
A1
Abstract:
Provided are a seat hardness adjustment device, a seat comfort adjustment device and a vehicle seat. The seat hardness adjustment device is provided with at least one soft inflatable bag (10) which can be integrated into the seat, wherein the soft inflatable bag (10) is connected to at least one air channel (11); the soft inflatable bag (10) is filled with a flexible filler (20); the soft inflatable bag (10) is inflated or deflated by means of the air channel (11) so as to adjust the hardness of the seat surface; and the soft inflatable bag (10) is internally provided with a height limitation structure (30) which is configured to limit the local expansion height of the soft inflatable bag (10) during inflation. By means of the height limitation structure (30), the distance between an upper bag body and a lower bag body of the soft inflatable bag (10) can be limited, such that the soft inflatable bag (10) has an expected change in local shape during inflation, such that a sufficient contact area is still provided between an occupant and the seat when the seat hardness is adjusted. In addition, the surface of the soft inflatable bag (10) is more conformal with the seat surface, thereby further improving the attractiveness and the comfort of the seat surface.
Inventors:
ZHANG HAITAO (CN)
Application Number:
PCT/CN2020/101960
Publication Date:
May 20, 2021
Filing Date:
July 14, 2020
Export Citation:
Assignee:
LANGFANG GOLDEN TIME TECH DEVELOPMENT CO LTD (CN)
International Classes:
B60N2/90; B60N2/02
Domestic Patent References:
| WO2019160214A1 | 2019-08-22 |
Foreign References:
| CN110789409A | 2020-02-14 | |||
| CN110774948A | 2020-02-11 | |||
| CN110774949A | 2020-02-11 | |||
| CN110877550A | 2020-03-13 | |||
| CN110861540A | 2020-03-06 | |||
| CN104627031A | 2015-05-20 | |||
| JPH11342775A | 1999-12-14 | |||
| CN102657457A | 2012-09-12 | |||
| CN103448590A | 2013-12-18 | |||
| CN206327201U | 2017-07-14 | |||
| US4371997A | 1983-02-08 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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