Clutch/brake unit having friction drive output shaft
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United States of America Patent
Stats
-
Jan 9, 1996
Grant Date -
N/A
app pub date -
Aug 22, 1994
filing date -
Aug 22, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A clutch/brake unit used to transmit torque from an electric motor to a gear reducer, particularly in processes that involve cyclical, start-stop operations. A special output shaft of the clutch/brake has a split portion which projects from the housing and receives a tapered plug within a tapered cavity. A bolt has a threaded connection with the plug to create wedging action which radially expands the split portion of the shaft when the bolt is turned in one direction. This expansion of the shaft creates a frictional coupling with the input hub of the gear reducer. The frictional coupling can be released by turning the bolt in the other direction to relieve the wedging force and allow the split portion of the shaft to contract radially.
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