US 12,465,147 B2
Chair base with retractable foot support
Chih Hsiung Liu, Benoni (ZA); and Changhua Wang, Changzhou (CN)
Assigned to MOTOMOTION CHINA CORPORATION, Changzhou (CN)
Filed by MOTOMOTION CHINA CORPORATION, Changzhou (CN)
Filed on Aug. 1, 2023, as Appl. No. 18/228,987.
Prior Publication US 2025/0040717 A1, Feb. 6, 2025
Int. Cl. A47C 7/50 (2006.01)
CPC A47C 7/506 (2013.01) [A47C 7/5062 (2018.08)] 14 Claims
OG exemplary drawing
 
1. A chair base having a retractable foot support, comprising:
a chair base framework comprising a pair of transversely extending, longitudinally spaced forward and rearward frame members, and a pair of longitudinally extending, transversely spaced left and right side frame members fixedly connected to said pair of transversely extending, longitudinally spaced forward and rearward frame members;
a pair of transversely extending, longitudinally spaced, forward and rearward cross-beam members interposed between said pair of transversely extending, longitudinally spaced forward and rearward frame members and fixedly connected to said pair of longitudinally extending, transversely spaced left and right side frame members fixedly connected to said pair of transversely extending, longitudinally spaced forward and rearward frame members;
a pair of transversely spaced, longitudinally extending track members having their opposite ends fixedly mounted upon or connected to said rearward, transversely extending cross-beam member and said forward, transversely extending frame member;
a retractable foot support mounted upon said pair of transversely spaced, longitudinally extending track members so as to be movable between a retracted position and an extended position, wherein said retractable foot support can support a person's feet when the person is seated within a chair which is supported by said chair base framework; and
a linear actuator operatively connected to said retractable foot support for moving said retractable foot support between said retracted and extended positions.