| 摘要 |
<p>PROBLEM TO BE SOLVED: To dispense with magnetic material for a bearing of an output shaft, facilitate disassembling and assembling for exchange of a damaged clutch coil spring, and reduce a size by providing a circular shell which is separable from a spline engagement part, and optionally setting a positional relation between the spline engagement part and a projection of the circular shell. SOLUTION: A circular shell 9 which houses an electromagnetic coil 8 and a spool 7b and has a spline engagement part 60 between the shell 9 and the inner periphery of the spool 7b. In addition, a projection 9a is formed both on the surface on the side of a gear 1, that is, the surface of an open end and opposite to an open end of the circular shell 9, and engaged with a recession or a projection 5a of a collar stop 5. The circular shell 9 is separated from the spline engagement part 60. A positional relation between the spline engagement part 60 and the projection 9a of the circular shell 9 can optionally be set. A non-rotatable part can be separated from a rotatable part by detaching a stopping ring 63, thereby a damaged clutch coil spring 4 is easily exchanged.</p> |
