公开(公告)号：US20040012234A1

公开(公告)日：2004-01-22

申请号：US10620891

申请日：2003-07-16

Applicant: NHK SPRING CO., LTD.

Inventor： Hiroyoshi Yamaguchi ,  Yuji Niikura ,  Takeshi Itoh

IPC: B60N002/48

CPC classification number: B60N2/4279 ,  B60N2/0276 ,  B60N2/838 ,  B60N2/888

Abstract: A vehicular seat includes at an upper part of a seat back an upper frame which extends in a widthwise direction of the seat back. An actuator unit which generates a drive force is attached along the upper frame. A headrest support frame is provided to the upper frame so as to be capable of moving in a front-and-back direction. When an acceleration equal to or above a predetermined value is applied to a vehicle by a collision from behind, a drive force generated by an operation of the actuator unit is transmitted to the headrest support frame. By moving the headrest support frame in a direction along which it approaches an occupant by using this drive force, a headrest supported to the headrest support frame moves frontward.

Abstract translation: 车座位于座椅靠背的上部，在座椅靠背的宽度方向上延伸的上框架。 产生驱动力的致动器单元沿着上框架被安装。 头架支撑框架设置在上框架上，以便能够沿前后方向移动。 当等于或高于预定值的加速度通过后方的碰撞而被施加到车辆时，通过致动器单元的操作产生的驱动力被传递到头枕支撑框架。 通过使用该驱动力使头枕支撑框架靠近乘员的方向移动，头枕支撑框架的头枕向前移动。