Pulley structure
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United States of America Patent
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May 15, 2012
Grant Date -
May 31, 2007
app pub date -
Oct 31, 2006
filing date -
Oct 31, 2005
priority date (Note) -
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Abstract
A pulley structure having a first rotating member that is rotatable around a first axis. A second rotating member is rotatable around the first axis and in at least partial axial coincidence with the first rotating member. A spring containing chamber is defined between the first and second rotating members. A spring, having axially spaced first and second ends defined by coils, extends around the first axis. At least one coil at each of the first and second axially spaced ends of the spring is radially biased relative to the first axis to thereby be frictionally held against each of the first and second rotating members to thereby allow forces generated by relative rotation between the first and second rotating members to be transmitted through the spring.
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