| 摘要 |
PROBLEM TO BE SOLVED: To obtain a structure with favorable transition characteristics at starting of torque transmission. SOLUTION: In a neutral state of not carrying out torque transmission between both driving side and driven side transmission members 16, 17, both circumferential end faces of elastic deformation parts 25a, 25b and circumferential end faces of driving side and driven side protruding parts 19, 22 are abutted on each other in an axial one end side, and faced in a separated state in an axial another end side. Wedge-like gaps 27a, 27b with widths regarding a circumferential direction becoming gradually larger from axial one end sides to another sides are interposed between both circumferential end faces of the elastic deformation parts 25a, 25b and the circumferential end faces of driving side and driven side protruding parts 19, 22. By elastically deforming the elastic deformation parts 25a, 25b following increase of torque to be transmitted like A→B→C, the favorable transition characteristics can be provided. COPYRIGHT: (C)2010,JPO&INPIT
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