Friction clutch
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United States of America Patent
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Jul 21, 1987
Issued Date -
N/A
app pub date -
Jul 2, 1986
filing date -
Sep 16, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A friction clutch wherein a hub carries a first plate which cannot rotate on the hub and a pressure plate which is non-rotatably connected with the first plate, e.g., by a set of axially stressed leaf springs urging the pressure plate axially and away from the first plate. A clutch disc is interposed between the two plates and is biased away from the first plate by a second set of axially stressed leaf springs. The pressure plate is connected with an annulus of axially parallel rivets extending through the first plate and having heads engaging with a ring or washer at the outer side of a prestressed diaphragm spring bearing against the first plate through the medium of an annular seat which is disposed radially outwardly of the rivets so that the diaphragm spring normally maintains the pressure plate in the engaged position by urging it against the clutch disc which, in turn, bears against the first plate. The pressure plate can be moved to the disengaged position to free the clutch disc by a disengaging bearing which is movable axially of the hub by a fluid-operated motor.
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