| 摘要 |
<P>PROBLEM TO BE SOLVED: To ensure transmission of rotation while achieving compact construction and preventing the runout of a coupling. <P>SOLUTION: An inner periphery side protrusion 40 of a driven side coupling 28 engages with an inner periphery side recess 41 of a driving side coupling 32, and an outer periphery side protrusion 43 of the driven side coupling 28 engages with an outer periphery side recess 44 of the driving side coupling 32. A chamfered portion 52 formed at the front end on the turning-direction downstream side face of the inner periphery side protrusion 40 abuts on an inclined face 50 as the turning-direction downstream side face of the inner periphery side recess 41, and a peripheral end face 43a on the turning-direction upstream side of the outer periphery side protrusion 43 has face contact with a peripheral end face 45 on the turning-direction upstream side of the outer periphery side recess 44. The driving side coupling 32 and the driven side coupling 28 are turned together without causing rattling in the turning direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
