US 11,731,545 B2
Side wing adjustment mechanism and adjustable sitting device
Zujian Liu, Dongguan (CN)
Assigned to BAMBINO PREZIOSO SWITZERLAND AG, Steinhausen (CH)
Filed by BAMBINO PREZIOSO SWITZERLAND AG, Steinhausen (CH)
Filed on Mar. 21, 2022, as Appl. No. 17/699,365.
Claims priority of application No. 202110308257.3 (CN), filed on Mar. 23, 2021.
Prior Publication US 2022/0305973 A1, Sep. 29, 2022
Int. Cl. B60N 2/26 (2006.01); B60N 2/28 (2006.01); B60N 2/885 (2018.01)
CPC B60N 2/885 (2018.02) [B60N 2/2851 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A side wing adjustment mechanism for adjusting a height of a headrest relative to a backrest and an extension distance of side wings, wherein the side wing adjustment mechanism comprises:
a pin, arranged on the headrest; and
an inclined groove, arranged on the side wing, a distance between a portion of the inclined groove and a longitudinal center axis of the backrest gradually decreases in a direction extending from bottom to top toward the headrest along the longitudinal center axis, and the pin is slidable along the inclined grooves.