US 12,446,699 B2
Sofa seat frame, sofa base assembly, sofa and sofa production and assembly process
Weiming Chen, Jiangsu (CN); and Xiaohong Li, Jiangsu (CN)
Assigned to Remacro Technology Co., Ltd., Suzhou (CN)
Filed by Remacro Technology Co., Ltd., Jiangsu (CN)
Filed on Nov. 29, 2023, as Appl. No. 18/523,878.
Application 18/523,878 is a division of application No. 17/259,929, granted, now 11,864,657, previously published as PCT/CN2020/122039, filed on Oct. 20, 2020.
Claims priority of application No. 202010195198.9 (CN), filed on Mar. 19, 2020.
Prior Publication US 2024/0090674 A1, Mar. 21, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A47C 7/30 (2006.01); A47C 4/02 (2006.01); A47C 17/16 (2006.01)
CPC A47C 17/163 (2013.01) [A47C 4/02 (2013.01); A47C 4/028 (2013.01); A47C 7/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A functional sofa base assembly, characterized by comprising a functional rack (4) and a sofa seat frame (1) detachably connected to the functional rack (4);
the sofa seat frame (1) comprises two cross beams (12) arranged at intervals and two longitudinal beams (11) connecting the two cross beams (12), wherein:
a plurality of supporting elastic pieces (13) are arranged between the two cross beams (12);
each longitudinal beam (11) comprises a first supporting plate (111) for supporting a seat cushion and a first side plate (112) arranged at one side of a lower part of the first supporting plate (111) and used for being detachably connected with a sofa fabric on the seat cushion;
each longitudinal beam (11) is a metal piece and comprises a second side plate (113) arranged at a distance from the first side plate (112) and located on an other side of the lower part of the first supporting plate (111), and the first supporting plate (111) connecting the first side plate (112) with the second side plate (113) from a top of the first side plate (112) and a top of the second side plate (113);
the sofa seat frame (1) further comprises a first connecting piece (14) for being connected with the functional rack (4), the first connecting piece (14) comprising two fifth side plates (142) arranged at intervals and a third supporting plate (141) connecting bottoms of the two fifth side plates (142), wherein:
the third supporting plate (141) is connected with the functional rack (4);
one fifth side plate (142) is connected to the first side plate (112) of the longitudinal beam (11), and another fifth side plate (142) is connected to the second side plate (113) of the longitudinal beam (11);
the functional rack (4) comprises a first base (41) and two telescopic brackets (43) arranged on the first base (41) at intervals, each telescopic bracket (43) comprising a seat frame mounting plate (4321) and a first mounting plate (43211) arranged on the seat frame mounting plate (4321); and
the third supporting plate (141) of the sofa seat frame (1) is detachably connected to the first mounting plates (43211).