Title:
MULTI-STAGE TELESCOPIC LEG REST FOR SEAT
Document Type and Number:
WIPO Patent Application WO/2023/134218
Kind Code:
A1
Abstract:
A multi-stage telescopic leg rest (9) for a seat, comprising a single-motor assembly (1), a bottom frame assembly (2), a transmission system (3) sleeved on the bottom frame assembly, and at least one end outer frame assembly (4) sleeved on a first outer frame assembly (32). The transmission system (3) comprises a connecting support (30), an internal moving assembly (31) and the first outer frame assembly (32); the bottom frame assembly (2), the internal moving assembly (31) and the first outer frame assembly (32) are connected to each other by means of a first-layer rack and pinion set (33), and can reciprocate longitudinally relative to each other; the internal moving assembly (31), the first outer frame assembly (32), and the first end outer frame assembly (4) are connected to each other by means of a last-layer rack and pinion set (34), and can reciprocate longitudinally relative to each other. The first-layer rack and pinion set and the last-layer rack and pinion set each comprise an upstream rack (331, 341), an intermediate pinion (332, 342) and a downstream rack (333,343) which are engaged with each other. According to the leg rest (9), tilting and extension of the multi-stage telescopic mechanism are implemented by using a single motor (10), and structural complexity increase and cost increase caused by using a plurality of motors are avoided.
Inventors:
DAI ZHANGWEI (CN)
ZHANG YIN (CN)
YU JIE (CN)
ZHANG YIN (CN)
YU JIE (CN)
Application Number:
PCT/CN2022/120936
Publication Date:
July 20, 2023
Filing Date:
September 23, 2022
Export Citation:
Assignee:
YANFENG INTERNATIONAL AUTOMOTIVE TECH CO LTD (CN)
International Classes:
B60N2/90; A47C1/034
Foreign References:
| CN114228588A | 2022-03-25 | |||
| CN112590630A | 2021-04-02 | |||
| CN113335166A | 2021-09-03 | |||
| CN110626242A | 2019-12-31 | |||
| US20050173963A1 | 2005-08-11 | |||
| KR102053779B1 | 2019-12-09 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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