公开(公告)号：US5449268A

公开(公告)日：1995-09-12

申请号：US222126

申请日：1994-04-04

申请人： Kenneth E. Lingo ,  Michael M. Manuszak ,  John H. Nolan

发明人： Kenneth E. Lingo ,  Michael M. Manuszak ,  John H. Nolan

IPC分类号： B65G47/90 ,  B66C1/00

CPC分类号： B65G47/904 ,  Y10T74/18272 ,  Y10T74/20323

摘要： A variable speed drive mechanism for transferring a workpiece in an accelerated and decelerated motion comprising a pair of spaced carrier arms driven by a main shaft that rotates through a fixed stationary gear. A set of pulleys is mounted between the carrier arms and a flexible drive member drivingly connects the stationary gear and the pulleys. One of the set of pulleys drives a pair of bellcranks each of which is operatively connected to a transfer arm through a roller and cam slot arrangement. The connection between the bellcrank and the transfer arm provides a more desirable acceleration and deceleration movement of the transfer arms.

摘要翻译： 一种用于在加速和减速运动中传送工件的变速驱动机构，包括由主轴驱动的一对间隔的承载臂，该主轴旋转通过固定的固定齿轮。 一组滑轮安装在承载臂之间，并且柔性驱动构件驱动地连接固定齿轮和滑轮。 一组滑轮中的一个驱动一对曲拐，每个曲拐通过辊和凸轮槽布置可操作地连接到传送臂。 曲拐和传送臂之间的连接提供了传送臂更理想的加速和减速运动。