公开(公告)号：US5643128A

公开(公告)日：1997-07-01

申请号：US595230

申请日：1996-02-01

申请人： Othar P. Kennedy

发明人： Othar P. Kennedy

IPC分类号： F16H25/06 ,  F16H13/08

CPC分类号： F16H25/06

摘要： A device for rotating a first structure relative to a second structure has a rotatable shaft for attachment to the first structure. A first cylinder is coaxially attached to the rotatable shaft, and has a plurality of bearing constraining apertures for holding a plurality of bearings. A hollow fixed member for attachment to the second structure has a coaxially attached second cylinder outside of the first cylinder. The second cylinder has a plurality of bearing seats on its inside wall for selectively receiving the bearings. The number of bearing constraining apertures is different from the number of bearing seats, so that the bearings are harmonically aligned by the constraining apertures to be movable to within the bearing seats only at selected progressive locations. A handle is coaxially and rotatably mounted to the fixed member, and carries a cam inside the first and second cylinders. The cam has a protruding cam face in one location to sequentially engage the bearings to urge the engaged bearings into bearing seats with which they align. The cam also has a recessed cam face in another location that allows the bearings to move laterally with movement of the first cylinder without engaging the bearing seats in nonaligned locations. Thus, when the handle is rotated with respect to the fixed member, the bearings engaged by the cam are progressively forced sequentially within the bearing constraining apertures into the tapered bearing seats of the second cylinder to move the first and second cylinders relative to each other.

摘要翻译： 用于相对于第二结构旋转第一结构的装置具有用于附接到第一结构的可旋转轴。 第一气缸同轴地连接到可旋转轴上，并且具有多个用于保持多个轴承的支承约束孔。 用于附接到第二结构的中空固定构件在第一气缸外侧具有同轴连接的第二气缸。 第二气缸在其内壁上具有多个轴承座，用于选择性地接收轴承。 轴承约束孔的数量不同于轴承座的数量，使得轴承通过约束孔协调地对准，以便仅在选定的逐渐位置处可移动到轴承座内。 手柄同轴并可旋转地安装到固定构件上，并且在第一和第二气缸内承载凸轮。 凸轮在一个位置具有突出的凸轮面，以顺序地接合轴承，以将接合的轴承推到与它们对准的轴承座中。 凸轮在另一位置还具有凹入的凸轮面，其允许轴承随着第一气缸的移动而横向移动，而不与非对准位置接合轴承座。 因此，当把手相对于固定部件旋转时，与凸轮接合的轴承在轴承约束孔内顺序地被迫进入第二气缸的锥形轴承座，以相对于彼此移动第一和第二气缸。