Damper mechanism
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United States of America Patent
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-
Dec 9, 2003
Grant Date -
Sep 12, 2002
app pub date -
Mar 1, 2002
filing date -
Mar 9, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A clutch disk assembly has an input rotary member 2, a spline hub 3, a damper section 4, a friction mechanism 13, and a friction suppressing mechanism. The damper section 4 has second springs 8 and a torsion characteristic having a positive side corresponding to when the input rotary member 2 is twisted in a rotational drive direction with respect to the spline hub 3 and a negative side corresponding to when the input rotary member 2 is twisted in an opposite direction. The friction mechanism 13 can generate friction when the input rotary member 2 and the spline hub 3 undergo relative rotation and the second springs 8 exert an elastic force. The friction suppressing mechanism secures a rotational gap .theta.ACn on only the positive or negative side preventing the second spring 8 from acting on the friction mechanism within a prescribed angular range.
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