| 摘要 |
<p>An electromagnetic clutch 1 includes: a first cam member 10 having a first cam surface 10a; a second cam member 20 having a second cam surface 20a facing the first cam surface 10a; a coned disc spring 3 that urges the second cam member 20 such that the first and second cam surfaces are separated from each other; a clutch plate 4 that contacts the second cam member 20 due to urging force of the urging member 3, and generates friction force between the clutch plate 4 and the second cam member 20; and an electromagnetic coil 61 that generates magnetic force with which the second cam member 20 is separated from the clutch plate 4 against the urging force of the urging member 3. The first cam surface 10a and the second cam surface 20a generate thrust force by which the second cam member 20 is pushed against the friction member, through relative rotation between the first cam member 10 and the second cam member 20 due to the friction force.</p> |
