公开(公告)号：US4721202A

公开(公告)日：1988-01-26

申请号：US836013

申请日：1986-03-04

申请人： Melvyn T. Fryer ,  John P. Rogers

发明人： Melvyn T. Fryer ,  John P. Rogers

IPC分类号： B66D3/00 ,  F16H19/06 ,  B65G19/00

CPC分类号： B66D3/003

摘要： A frictional drive unit, suitable for effecting linear sliding movement of a structural member into a cantilevered position, includes a frame, at least two sprocket assemblies mounted in bearings in the frame and spaced apart with their rotational axes parallel to each other, and an endless track. This track comprises a plurality of articulated friction pads mounted upon the sprocket assemblies and drivingly engageable with the structural member. Reversible motor means is carried by the frame and is drivingly connected to at least one of the sprocket assemblies.

摘要翻译： 一种适于实现结构构件到悬臂位置的线性滑动运动的摩擦驱动单元包括框架，至少两个链轮组件，其安装在框架中的轴承中并与其相互平行的旋转轴线间隔开， 跟踪。 该轨道包括安装在链轮组件上并可与结构构件驱动接合的多个关节式摩擦垫。 可逆电动机装置由框架承载并且驱动地连接到至少一个链轮组件。