Drive mechanism

摘要

A drive mechanism (20) including a first shaft (324) having a first fixed gear (328) and a second shaft (322) having second fixed gear (330) that engages the first fixed gear to cause the first shaft to rotate in an opposite direction than the second shaft. A first linkage (368) connecting the first shaft and the third shaft and includes a first one-way gear (336). A second linkage (366) connecting the second shaft and the third shaft and includes a second one-way gear (338). The third shaft outputs a unidirectional rotational motion.

主权项

1. A drive mechanism comprising:
a first shaft including a first fixed gear and a first input gear fixed from rotation relative to the first shaft; a second shaft includes a second fixed gear and a second input gear fixed from rotation relative to the second shaft, the second fixed gear mechanically engages the first fixed gear to cause the first shaft to rotate in an opposite direction than the second shaft; a first linkage connecting the first shaft and a third shaft, the first linkage including a first one-way gear attached to the first shaft; a second linkage that connects the second shaft and the third shaft and includes a second one-way gear attached to the second shaft, wherein the third shaft produces a unidirectional rotational motion; a first linear input member mechanically linked to the first input gear on the first shaft; and a second linear input member is mechanically linked to the second input gear on the second shaft, wherein first linear input is mechanically linked to move in an opposite direction from the second linear input.