US 12,433,414 B2
Armrest installation structure
Xujun Zhang, Zhejiang (CN); Hao Wu, Zhejiang (CN); Changjiang Liu, Zhejiang (CN); and Xianping He, Zhejiang (CN)
Assigned to SUNON TECHNOLOGY CO., LTD, Zhejiang (CN)
Filed by SUNON TECHNOLOGY CO.,LTD, Zhejiang (CN)
Filed on Aug. 17, 2023, as Appl. No. 18/451,785.
Claims priority of application No. 202321015520.0 (CN), filed on Apr. 28, 2023.
Prior Publication US 2024/0358158 A1, Oct. 31, 2024
Int. Cl. A47C 7/54 (2006.01)
CPC A47C 7/541 (2018.08) [A47C 7/546 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An armrest installation structure, comprising a back frame, a pre-embedded sleeve, and an armrest body, wherein the pre-embedded sleeve is fixedly installed in an inner cavity of the back frame; a side wall of the pre-embedded sleeve is provided with several deadbolt grooves provided along a length direction of the pre-embedded sleeve; the armrest body is internally provided with a deadbolt switchable between an unlocked state and a locked state, and a transmission assembly driving the deadbolt to switch between the unlocked state and the locked state; in the unlocked state, the deadbolt is stored into the armrest body and comes out of a selected one of the deadbolt grooves; and in the locked state, the deadbolt at least partially extends out of the armrest body and is plugged into any of the deadbolt grooves; and when the deadbolt is inserted into the deadbolt groove, the armrest body and the back frame keep relatively fixed,
wherein the transmission assembly comprises a transmission rod provided in an inner cavity of the armrest body; the transmission rod undergoes sliding connection along a length direction of the armrest body; a side wall of the armrest body is provided with a first notch communicated to the inner cavity of the armrest body; the deadbolt slides to plug into the first notch; the transmission rod is obliquely provided with a guide section; a bottom end of the guide section is tilted to one side of the first notch; the deadbolt is provided with a fastening groove fastened on an outer side of the guide section; and a side wall of the guide section abuts against an inner wall of the fastening groove.