Pulley assembly for a continuously variable transmission
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United States of America Patent
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Sep 25, 2012
Grant Date -
Jun 18, 2009
app pub date -
Aug 18, 2005
filing date -
Aug 18, 2005
priority date (Note) -
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Abstract
Pulley assembly for a continuously-variable vehicle transmission, comprising a support element having an axis, a first half-pulley rotationally connected to the support element, a second half-pulley facing the first half-pulley to define a seating adapted to house a drive belt, the second half-pulley being axially and circumferentially mobile in relation to the support element, and cam means functionally inserted between the second half-pulley and the support element to control the position of the second half-pulley. The cam means define a plurality of circumferential cavities carried by a peripheral portion of the second half-pulley, said cavities being defined by the first and second sides which are transverse to axis, and comprise a plurality of cam-followers which are connected to the support element and housed in the corresponding circumferential cavities to cooperate selectively with the first and second sides.
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