| 摘要 |
<P>PROBLEM TO BE SOLVED: To compact a structure and enable sure rotation transmission by preventing a phenomenon called coupling jump. <P>SOLUTION: An outer circumference side projection 43 of a driven side coupling 28 engages with an outer circumference side recess 44 of a drive side coupling 32. A locking projection is formed on one of contact surfaces of the outer circumference side projection 43 and the outer circumference side recess 44 and a recess intermeshing with the locking projection is formed another of contact surfaces of the outer circumference side projection 43 and the outer circumference side recess 44. Intermeshing quantity of the locking projection and the recess is set to quantity less than kick back quantity of a motor rotary shaft connected to a drive shaft having the drive side coupling 32 attached thereon. Coupling jump at a time of rotation transmission is prevented and disengagement of the drive side coupling 32 and the driven side coupling 28 at a time on non-rotation transmission is enabled. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
