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Title:
SOFA FRAME DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/177543
Kind Code:
A1
Abstract:
A sofa frame device, comprising a base (1), a linkage mechanism (2), and two extension frames (3) symmetrically disposed at the base (1). The linkage mechanism (2) comprises a first linkage rod (21) and a second linkage rod (22). Two ends of the first linkage rod (21) are respectively connected to the two extension frames (3). Two ends of the second linkage rod (22) are also respectively connected to the two extension frames (3). A first connector (211) is disposed at a middle portion of the first linkage rod (21), and a second connector (221) is disposed at a middle portion of the second linkage rod (22). The first connector (211) and the second connector (221) are connected to a driving member, and are driven by the driving member to move relative to each other, so as to drive the two extension frames (3) to extend or retract. The sofa frame device achieves smooth movement and low noise during position conversion of a sofa, avoids sudden changes in speed, and prevents the frame device from getting stuck or shaking.

Inventors:
LI XIAOHONG (CN)
CHEN JIAO (CN)
WU LINLIN (CN)
Application Number:
CN2020/075996
Publication Date:
September 10, 2020
Filing Date:
February 20, 2020
Export Citation:
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Assignee:
REMACRO MACHINERY & TECH WUJIANG CO LTD (CN)
International Classes:
A47C1/035; A47C17/04; A47C17/86
Foreign References:
CN109924748A2019-06-25
CN103932521A2014-07-23
CN103932521A2014-07-23
CN203852053U2014-10-01
CN203852053U2014-10-01
CN206964408U2018-02-06
CN206964408U2018-02-06
CN203016366U2013-06-26
CN102657449A2012-09-12
CN108158260A2018-06-15
CN107232857A2017-10-10
US20110248546A12011-10-13
US20160058191A12016-03-03
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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