Electro-magnetic spring-wound clutch
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United States of America Patent
Stats
-
Mar 25, 1980
Grant Date -
N/A
app pub date -
Jan 3, 1978
filing date -
Jan 14, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Input and output members and a clutch disc are coaxially rotatable relative to each other, the clutch disc being frictionally engageable with the input member. A coil-wound spring is wound around the input member and connected at its ends to the clutch disc and output member. An electromagnetic coil may be energized to attract the clutch disc into frictional engagement with the input member, causing the coil-wound spring to tightly wind around the input member and drivably connect the input member to the output member. A spring means quickly and smoothly disengages the clutch disc from the input member when the coil is de-energized. A plurality of pins extending through the output member and the clutch disc ensure parallel movement of the clutch disc toward and away from the input member.
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