Ball screw actuated clutch combination
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United States of America Patent
Stats
-
Oct 30, 1990
Grant Date -
N/A
app pub date -
Sep 21, 1989
filing date -
Sep 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A double clutch arrangement for use in a transmission or other place where mechanical clutch is desired that has a high torque capacity and small engagement and disengagement forces at the shift lever. The clutch arrrangement is utilized on the output shaft of a two-position clutch having forward and reverse gears and includes a ball screw actuated clutch mechanism positioned between the shaft and an externally actuated encompassing shift collar in combination with a friction clutch mechanism. The friction clutch mechanism comprises either a pair of clutch friction packs positioned between the shift collar and the forward and reverse gears or a pair of cone clutches therebetween. Initial actuation of the forward or reverse friction pack or cone clutch will initiate the ball screw clutch mechanism to lock up the clutch in either direction.
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