HEADREST SUPPORTING STRUCTURE

摘要

A headrest supporting structure is provided with a lower spring and an upper spring, which are located at different positions in the vertical direction of a seat. The structure elastically supports a headrest stay with the springs. When a stopper section, which changes the position in the front-back direction in accordance with pivoting of the headrest, comes into contact with a support bracket, further pivoting of the headrest is restricted. The stiffness of the upper spring located relatively distant from the stopper section in the seat vertical direction is higher than that of the lower spring located closer to the stopper section.

主权项

1. A headrest supporting structure that supports a headrest on a backrest such that the headrest is capable of pivoting in a front-rear direction, the structure comprising:
a bracket provided in the backrest; a first spring and a second spring located at two positions different from each other in a seat vertical direction, wherein the first spring and the second spring elastically support a headrest stay, which projects from the headrest, with respect to the bracket; and a stopper section, which is displaced in the front-rear direction in accordance with pivoting of the headrest, wherein the stopper section restricts further pivoting of the headrest when abutting against the bracket, wherein the first spring is more distant from the stopper section than the second spring in the seat vertical direction, and the stiffness of the first spring is higher than the stiffness of the second spring.