Patent ID: 8075052
Filing Date: 2011-12-13
Classification: B60N,Y10T

Abstract:
1. A vehicle seat comprising: a seat back frame; a headrest for supporting a head of a seat occupant, wherein the headrest is forwardly movably connected to the seat back frame; a rear-end collision detector mounted to the seat back frame at a position behind the seat occupant, wherein the rear-end collision detector detects rearward movement of the seat occupant and moves rearward; and the rear-end collision detector is operatively connected to the headrest such that the rearward movement of the rear-end collision detector forwardly moves the headrest; a headrest support for supporting the headrest that extends in a horizontal direction, wherein the headrest support is movably connected to a side frame that constitutes a side portion of the seat back frame through a link member; a bracket mounted to the side frame, wherein a link support shaft is mounted to the bracket and wherein the link member is movably mounted to the link support shaft; a front extending portion inwardly extending in a right-to-left direction and formed at a front end of a lateral face of the side frame; and a rear extending portion inwardly extending in the right-to-left direction and formed at a rear end of the lateral face of the side frame; wherein: a concave portion is formed at a portion of an inner end portion of the front extending portion of the side frame that faces at least a part of the bracket; the concave portion is disposed at a position facing the link support shaft, and a single horizontal plane intersects the concave portion, at least a part of the bracket, and the link support shaft.