公开(公告)号：US20240300394A1

公开(公告)日：2024-09-12

申请号：US18565202

申请日：2022-06-02

申请人： Yanfeng International Automotive Technology Co., Ltd.

发明人： Xun Tang ,  Shunqiang LAN ,  Yueyun CHEN ,  Chaogang XU ,  Yilin JIN

IPC分类号： B60N2/829

CPC分类号： B60N2/829

摘要： A large-stroke electric headrest structure for a car seat, comprising: two guide rods (1) that are disposed in a same direction; a headrest body (2) externally connected with a slider (21), the slider (21) being provided with two through holes for the guide rods and a threaded through-hole all of which are disposed vertically, and the two guide rods (1) being disposed slidably in the two through holes, respectively; a supporting plate (3) connected to the two guide rods (1) and provided with a vertical through hole (d) aligned with the threaded through-hole; and a driving motor (4) mounted in a tiltable manner on a side of the supporting plate (3) away from the slider (21), wherein an elastic energy-absorbing plate (41) is padded between the driving motor (4) and the supporting plate (3), the driving motor (4) is connected in a transmission manner with a lead screw (42) movably inserted in the vertical through hole (d), an end of the lead screw (42) away from the driving motor (4) is screwed in the threaded through-hole, and a gap is reserved between the vertical through hole (d) and the lead screw (42).