Title:
MECHANICAL EXTENSION DEVICE AND SEAT CONNECTION STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2023/193488
Kind Code:
A1
Abstract:
A mechanical extension device (4) and a seat connection structure. The mechanical extension device comprises a footrest assembly (16), a seat cushion support assembly (17) and a backrest assembly (18); the backrest assembly (18) comprises a backrest support portion (4a) and a connection assembly (A) arranged on the backrest support portion (4a); the connection assembly (A) comprises a connection base (9) and a clamp (7) connected to the connection base (9), a slot (7b) in the clamp (7) extending from top to bottom, and the clamp (7) and the connection base (9) abutting left and right against each other; a first mounting hole (11a) and a second mounting hole (12a) which are spaced front and back apart from each other are pre-arranged in the backrest support portion (4a); the front end and the rear end of the connection base (9) are respectively rotatably connected to the first mounting hole (11a) and the second mounting hole (12a). A seat comprises a back frame (1), a seat portion assembly (2) and the mechanical extension devices (4); the mechanical extension devices (4) are arranged in a mirroring manner on the left side and the right side below a seat cushion assembly (3); the upper ends of the clamps (7) are located below the seat surface of the seat cushion assembly (3). Therefore, during packaging, the back frame (1) can be horizontally stacked on a seat cushion and the upper ends of the clamps (7) do not interfere with the back frame (1), which helps to conveniently package and transport the seat.
Inventors:
JIN SIMIAO (CN)
ZHUANG WENHAO (CN)
ZHUANG WENHAO (CN)
Application Number:
PCT/CN2022/143073
Publication Date:
October 12, 2023
Filing Date:
December 29, 2022
Export Citation:
Assignee:
UE FURNITURE CO LTD (CN)
International Classes:
A47C17/86; A47C17/04
Foreign References:
| CN218105374U | 2022-12-23 | |||
| CN114847706A | 2022-08-05 | |||
| CN209436695U | 2019-09-27 | |||
| CN214631120U | 2021-11-09 | |||
| CN206342195U | 2017-07-21 | |||
| JP2008259768A | 2008-10-30 |
Attorney, Agent or Firm:
HANGZHOU CHENGLONG INTELLECTUAL PROPERTY ATTORNEYS OFFICE LLP (CN)
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