| 摘要 |
<P>PROBLEM TO BE SOLVED: To miniaturize a power unit provided with an electromagnetic clutch mechanism, and to simplify of an assembly process. <P>SOLUTION: The cable drum 17 has a cylindrical shape, provided with a drum rim body 23 on the side on one side and an internal space 34, which can store not less than half the electromagnetic clutch mechanism 35 and is formed on the inner side of its outer peripheral surface. The electromagnetic clutch mechanism 35 has: an armature 38, which is movable in the axial direction of a drum shaft 25; a sleeve 36 which can be connected to the motor 28 side; a flange 39 integrally formed at the end of the sleeve 36; and an electromagnetic coil part 37, which brings the armature 38 into contact with the flange 39 by frictional resistance, when it is turned on. The armature 38 and the sleeve 36 can be fixed to the cable drum 17 as a unit body, by being fixed by a fastener 45, after being inserted through the drum shaft 25. <P>COPYRIGHT: (C)2011,JPO&INPIT |
