公开(公告)号：US5320413A

公开(公告)日：1994-06-14

申请号：US129289

申请日：1993-09-30

申请人： Leslie Griswold ,  Mark Graf ,  John Flannery ,  Cynthia L. Hernandez ,  Srinivas Bidare ,  Obert Burch ,  David Pawczuk

发明人： Leslie Griswold ,  Mark Graf ,  John Flannery ,  Cynthia L. Hernandez ,  Srinivas Bidare ,  Obert Burch ,  David Pawczuk

IPC分类号： B60N2/23 ,  F16H25/24 ,  B60N2/02

CPC分类号： B60N2/233 ,  F16H25/2454 ,  Y10S188/01 ,  Y10T74/18704

摘要： A vehicle seat assembly with a linear actuator is disclosed in which the actuator is used to adjust the relative position of two relatively movable components of the seat assembly. The actuator includes a first part attached to one of the seat assembly components in the form of a lead screw with an external helical screw thread. A second part of the actuator, attached to the other seat component, includes a housing containing a spin nut threaded onto the lead screw. The second part further includes means for engaging the spin nut to prevent it from rotating along the lead screw and means for selectively releasing the spin nut to permit rotation about the lead screw and thereby relative movement of the actuator second part relative to the first part. A cam is mounted to the actuator second part to selectively engage and release the spin nut.

摘要翻译： 公开了一种具有线性致动器的车辆座椅组件，其中致动器用于调节座椅组件的两个相对可移动部件的相对位置。 致动器包括以带有外螺旋螺纹的丝杠形式附接到座椅组件部件之一的第一部件。 致动器的第二部分附接到另一个座椅部件，包括一个外壳，该壳体包含螺纹连接在丝杠上的旋转螺母。 第二部分还包括用于接合旋转螺母以防止其沿着丝杠旋转的装置，以及用于选择性地释放旋转螺母以允许围绕导螺杆旋转并且由此致动器第二部分相对于第一部分的相对运动的装置。 凸轮安装到致动器第二部分以选择性地接合和释放旋转螺母。