Hydraulic autotensioner
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United States of America Patent
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-
Jul 4, 2000
Grant Date -
N/A
app pub date -
Nov 24, 1997
filing date -
Nov 25, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A hydraulic autotensioner for keeping constant the tension in a belt. It has a bolt threadedly fixed to a stationary member, an eccentric ring supported by the bolt at an off-center position so as to be pivotable about the bolt, a pulley rotatably mounted on the eccentric ring, and a tension adjusting spring for biasing the eccentric ring in such a direction that the belt is pressed by the pulley. A hydraulic damper having a damper body is mounted between the stationary member and the eccentric ring so as to abut the eccentric ring for damping the pushing force applied to the eccentric ring from the belt through the pulley. A coupling ring is provided to keep the eccentric ring and the hydraulic damper coupled together.
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