| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electromagnetic clutch fixing an electromagnet in a yoke housing without damaging the electromagnet, and capable of carrying out effective utilization of magnetic force by eliminating air gaps in the whole of a magnetic path formed by the electromagnet. <P>SOLUTION: The electromagnetic clutch 40 is provided with the yoke housing 47 surrounding the electromagnet 46. In the yoke housing 47, a space for housing the electromagnet 46, namely, an outer diameter and an inner diameter of a housing part 50, are set the same as an outer diameter and an inner diameter of the electromagnet 46. Specifically, a radial direction length W1 and an axial length L1 of the housing part 50 is set substantially the same as a radial length W0 and an axial length L0 of the electromagnet 46. The yoke housing 47 is formed by coupling a first divided housing 51 and a second divided housing 52 divided by the housing part 50 as a boundary. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
