Title:
IMPROVED DUAL-ELECTRIC MECHANICAL DEVICE FOR SOFA
Document Type and Number:
WIPO Patent Application WO/2019/144434
Kind Code:
A1
Abstract:
An improved dual-electric mechanical device for a sofa. An up-and-down lifting connecting rod mechanism (2) is provided on a base (1); an armrest connecting plate mechanism (3) is provided above the up-and-down lifting connecting rod mechanism (2); the up-and-down lifting connecting rod mechanism (2) is connected to the base (1) and the armrest connecting plate mechanism (3) respectively by means of pin shafts; one end of the armrest connecting plate mechanism (3) is connected to a footrest stretching connecting rod mechanism (4), and the other end thereof is connected to a rotating rod mechanism (5); the footrest stretching connecting rod mechanism (4) is connected to a seat backrest connecting mechanism (6) and the armrest connecting plate mechanism (3) respectively by means of pin shafts; two ends of a first electric telescopic rod (7) are connected to the rotating rod mechanism (5) and the base (1); and the two ends of a second electric telescopic rod (8) are connected to the seat backrest connecting mechanism (6) and the rotating rod mechanism (5) by means of pin shafts. The described improved dual-electric mechanical device for a sofa is noise-free during the operating process and has smooth operation; and a backrest is separately adjusted at a large angle, so that the overall comfort of the sofa is greatly improved.
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| WO/2023/000512 | SEAT UNIT AND SEAT |
Inventors:
LIU LIHUA (CN)
XU JINBING (CN)
LIN WEIPENG (CN)
WANG XINGRU (CN)
LIU MEIRONG (CN)
XU JINBING (CN)
LIN WEIPENG (CN)
WANG XINGRU (CN)
LIU MEIRONG (CN)
Application Number:
PCT/CN2018/075266
Publication Date:
August 01, 2019
Filing Date:
February 05, 2018
Export Citation:
Assignee:
HAIAN LI HUA STEEL PRODUCTS CO LTD (CN)
International Classes:
A47C17/04; A47C17/17; A47C20/04
Domestic Patent References:
| WO2014091483A1 | 2014-06-19 |
Foreign References:
| CN201393742Y | 2010-02-03 | |||
| CN203969784U | 2014-12-03 | |||
| CN105795775A | 2016-07-27 | |||
| CN105146949A | 2015-12-16 |
Attorney, Agent or Firm:
NANJING RUI ZHI BO IP AGENCY CO., LTD. (CN)
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