Electromagnetic clutch

An electromagnetic clutch includes a wrap spring being wound around to be in a pressure bonding state relative to an outer peripheral surface of a tubular portion of a driving-side rotation member. A first end of the wrap spring connects to a driving arm of a driving member, which connects to a driv...

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1. Verfasser: IKEGAWA ATSUTOSHI
Format: Patent
Sprache:eng
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Zusammenfassung:An electromagnetic clutch includes a wrap spring being wound around to be in a pressure bonding state relative to an outer peripheral surface of a tubular portion of a driving-side rotation member. A first end of the wrap spring connects to a driving arm of a driving member, which connects to a driven-side rotation member. A second end of the wrap spring connects to a rim portion of an operating member formed in a disc form. The operating member is rotatable relative to the driven-side rotation member about the rotation axis as the center and movable along the rotation axis. After a rotation of the operating member is restrained, the driving member is restrained from rotation, which operates the wrap spring to twist and cancels the pressure boding state of the wrap spring relative to the driving-side rotation member, which in turn provides a power cutoff state.