US 12,551,018 B2Granted

Support structure and seat

AssigneeGuangdong Best Home Furniture Co., Ltd.

InventorJianguo Xiao

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Abstract

Disclosed in the present disclosure is a support structure and a seat, relating to the technical field of mechanical structures, including a seat frame assembly, a footrest assembly, and a motion-driving assembly, wherein the support structure further includes a first reset elastic member provided on the seat frame assembly and connected to the motion-driving assembly or the footrest assembly, and the first reset elastic member applies a reset elastic force to directly or indirectly drive the footrest assembly to rotate with respect to the seat frame assembly to retract. The support structure and the seat provided in the present disclosure adopts a first reset elastic member to assist footrest retraction, reducing a force required to retract the footrest assembly, with fast retraction speed, providing advantages of convenience, labor-saving and swiftness.

Claims16

Dependent claims

A support structure, comprising:

a seat frame assembly;
a footrest assembly, rotatably connected to the seat frame assembly;
a motion-driving assembly, used to drive the footrest assembly to rotate with respect to the seat frame assembly;
and
a first reset elastic member, provided on the seat frame assembly and connected to the motion-driving assembly or the footrest assembly, wherein the first reset elastic member applies a reset elastic force to directly or indirectly drive the footrest assembly to rotate with respect to the seat frame assembly to retract;
wherein the support structure further comprises a fixed mounting base and a support link, wherein the seat frame assembly, swingable up and down, is hinged to the fixed mounting base, and both ends of the support link are rotatably connected to the motion-driving assembly and the fixed mounting base respectively;
and with the footrest assembly in an outwardly open state, when the seat frame assembly is compressed and swings downwardly with respect to the fixed mounting base, the seat frame assembly drives the motion-driving assembly to self-lock by means of the support link.

4 more elements

A seat, comprising a support structure, the support structure comprising:

a seat frame assembly;
a footrest assembly, rotatably connected to the seat frame assembly;
a motion-driving assembly, used to drive the footrest assembly to rotate with respect to the seat frame assembly;
and
a first reset elastic member, provided on the seat frame assembly and connected to the motion-driving assembly or the footrest assembly, wherein the first reset elastic member applies a reset elastic force to directly or indirectly drive the footrest assembly to rotate with respect to the seat frame assembly to retract;
wherein the support structure further comprises a fixed mounting base and a support link, wherein the seat frame assembly, swingable up and down, is hinged to the fixed mounting base, and both ends of the support link are rotatably connected to the motion-driving assembly and the fixed mounting base respectively;
and with the footrest assembly in an outwardly open state, when the seat frame assembly is compressed and swings downwardly with respect to the fixed mounting base, the seat frame assembly drives the motion-driving assembly to self-lock by means of the support link.

4 more elements

Dependencies are inferred from the claim text.