Title:
ROLLING STRUCTURE, AND CHAIR WITH ROLLING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/027308
Kind Code:
A1
Abstract:
Disclosed are a rolling structure, and a chair with the rolling structure. The rolling structure of the chair comprises a roller assembly (1) and a guide rail assembly (2), wherein a peripheral surface of a bearing roller (11) in the roller assembly (1) is provided with an inwardly recessed portion (113) in the circumferential direction of the bearing roller (11); the top surface of a lower guide rail (22) of the guide rail assembly (2) is provided with a lower protruding portion (221) matching the recessed portion (113) in the lengthwise direction of the lower guide rail (22); and when the roller assembly (1) rolls in the guide rail assembly (2), the recessed portion (113) of the bearing roller (11) is sheathed outside the lower protruding portion (221) of the lower guide rail (22), and two side surfaces of the recessed portion (113) cooperate with two side surfaces of the lower protruding portion (221), so as to achieve a limiting effect on the bearing roller (11) and enable the bearing roller (11) to always move in a forward direction.
Inventors:
LIU YING (CN)
LIN MEIMAN (CN)
LIN MEIMAN (CN)
Application Number:
PCT/CN2020/085329
Publication Date:
February 18, 2021
Filing Date:
April 17, 2020
Export Citation:
Assignee:
EASEPAL & INADA HEALTHCARE TECH XIAMEN CO LTD (CN)
International Classes:
A47C3/027; A47C7/00
Foreign References:
| CN208524226U | 2019-02-22 | |||
| CN203374112U | 2014-01-01 | |||
| US20140306502A1 | 2014-10-16 | |||
| CN110025453A | 2019-07-19 | |||
| CN206434071U | 2017-08-25 | |||
| CN205180843U | 2016-04-27 | |||
| JPS6045374A | 1985-03-11 | |||
| US2313023A | 1943-03-02 |
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