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1. 发明授权

US5664653A Rotary unit having clutch function 失效
标题翻译：具有离合器功能的旋转单元
公开(公告)号：US5664653A
公开(公告)日：1997-09-09
申请号：US571488
申请日：1995-12-13
申请人： Masahiro Kurita , Kenichi Ichikawa , Masakazu Doumoto
发明人： Masahiro Kurita , Kenichi Ichikawa , Masakazu Doumoto
IPC分类号： F16D41/07 , F16D15/00 , F16D41/06
CPC分类号： F16D41/07
摘要： A rotary unit with a built-in clutch which is short in its axial length. The rotary unit has an inner member having an outer periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the raceway groove, and a cylindrical outer member having an inner periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the groove. A retainer mounted between the inner and outer members has a plurality of circumferentially spaced pockets each housing a rolling member and sprag housing recesses provided alternately with the pockets. In each recess is received a sprag having both ends thereof resting on the opposing cylindrical surfaces and biased by a resilient member so that its inner and outer arcuate surfaces contact the cylindrical surfaces. By arranging the sprags and the rolling members alternately with each other in the circumferential direction, it is possible to reduce the entire axial length of the rotary unit.
摘要翻译：带内置离合器的旋转单元，轴向长度短。旋转单元具有内部构件，其外周形成有轨道槽和滚道槽两侧的一对圆筒面，以及圆筒状外构件，其内周形成有轨道槽和一对圆筒面在槽的两侧。安装在内部和外部构件之间的保持器具有多个周向间隔开的凹穴，每个凹部容纳滚动构件和与凹穴交替设置的楔形物容纳凹部。在每个凹部中接收有楔形物，其两端搁置在相对的圆柱形表面上，并被弹性构件偏压，使得其内部和外部弓形表面接触圆柱形表面。通过在圆周方向上交替地布置楔子和滚动构件，可以减小旋转单元的整个轴向长度。

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