CPC B60N 2/885 (2018.02) [B60N 2/2851 (2013.01)] | 16 Claims |
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.
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