Patent ID: 6722740
Filing Date: 2004-04-20
Classification: B60N

Abstract:
In a headrest including a headrest body frame and a generally inverted-U-shaped frame on which said headrest body frame is rotatably supported, said generally inverted-U-shaped frame having a horizontal columnar frame section of a circular cross-section and a pair of stay portions extending vertically from said horizontal columnar frame section,a forward and backward inclination adjustment device for allowing said headrest body frame to be inclined in forward and backward directions relative to said pair of stay portions, said forward and backward inclination adjustment device comprising: a leaf spring means of a generally â€œUâ€  shape, said leaf spring means being firmly secured to said headrest body frame; and a plurality of discrete flat surfaces formed in said horizontal columnar frame section of said generally inverted-U-shaped frame, wherein said leaf spring means resiliently holds said horizontal columnar frame section in such a manner that one of said plurality of discrete flat surfaces is normally biased to contact with said leaf spring means, so that, when inclining said headrest body frame in one of said forward and backward directions, a selected one of said plurality of discrete flat surfaces is brought to contact with said leaf spring means, thereby allowing said headrest body frame to be adjustably inclinable with a clicking stepwise touch.