公开(公告)号：US3976327A

公开(公告)日：1976-08-24

申请号：US544780

申请日：1975-01-28

申请人： Egon Wirtz ,  Karl Heinz Ligensa

发明人： Egon Wirtz ,  Karl Heinz Ligensa

IPC分类号： B60N2/225 ,  B60N1/06

CPC分类号： B60N2/2252

摘要： Two strap members are respectively connectable with a seat member and a backrest member and are joined for relative pivoting movement. An inner and a cooperating outer gear annulus are provided on the respective strap members in engagement with one another. A brake sleeve is provided on one of the strap members and a helical spring is located within the brake sleeve and normally frictionally engages an inner surface thereof. The spring has two inwardly angled end portions. An output member is turnably mounted within the sleeve and has a first section extending between the end portions of the spring, and a turnable control member is adjacent the output member and has a second section also extending between the end portions. A torsion spring engages the input and control members and urges the sections thereof into engagement with the respective end portions of the helical spring.

摘要翻译： 两个带构件分别可与座椅构件和靠背构件连接，并且被连接以进行相对枢转运动。 在相应的带构件上设置有内部和配合的外齿轮环，彼此接合。 一个制动套筒设置在一个带状构件上，并且螺旋弹簧位于制动套筒内并且通常摩擦地接合其内表面。 弹簧具有两个向内倾斜的端部。 输出构件可转动地安装在套筒内并且具有在弹簧的端部之间延伸的第一部分，并且可转动的控制构件邻近输出构件并具有也在端部之间延伸的第二部分。 扭力弹簧与输入和控制构件接合并促使其部分与螺旋弹簧的相应端部接合。