Electromagnetic helical spring clutch

Details Electromagnetic helical spring clutch Electromagnetic helical spring clutch

F - Mech Eng,Light,Heat,Weapons

16

D

192/6

F16D 27/10 (2006.01) F16D 27/105 (2006.01)

Patent

CA 1157790

Abstract of the Disclosure A magnetically actuated clutch in which a helical spring is carried by an input clutch member with portions surrounding a relatively rotatable output clutch member. An electromagnet is positioned with its poles lightly engaging the surrounding spring portions at circum- ferentially spaced locations, while either the spring or the output clutch member or both are formed of a magnetically permeable material to complete a magnetic circuit. Energiz- ing the electromagnet causes the poles to clamp the spring to retard its rotation with the input member, thereby causing the spring to wrap down on the output clutch member and engage the clutch.

379570

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