| 摘要 |
<p>PURPOSE:To prevent the occurrence of loss of durability even when engagement and disengagement are repeated during rotation. CONSTITUTION:An electromagnetic clutch comprises a moving member 3 joined with a member 24 to be mounted through excitation of a solenoid 2 and intercoupling an output shaft 23 and a pulley 19 for drive; a permanent magnet 4 located movably radially of rotation and having a magnetic force by which the moving member 3 is corotated in the position on the rotary axis O side; and a compression spring 5 through the force of which the permanent magnet 4 is properly energized radially internally.</p> |
