| 摘要 |
<p>Pulley assembly (1) for a continuously-variable vehicle transmission, comprising a support element (6) having an axis (A), a first half-pulley (9) rotationally connected to the support element (6), a second half-pulley (11) facing the first half-pulley (11) facing the first half-pulley (9) to define a seating (17) adapted to house a drive belt (18), the second half-pulley (11) being axially and circumferentially mobile in relation to the support element (6), and cam means (32) functionally inserted between the second half-pulley (11) and the support element (6) to control the position of the second half-pulley (9). The cam means (32) define a plurality of circumferential cavities (33) carried by a peripheral portion of the second half-pulley (11), said cavities being defined by the first and second sides (43, 44) which are transverse to axis (A), and comprise a plurality of cams (35) which are connected to the support element (6) and housed in the corresponding circumferential cavities (33) to cooperate selectively with the first and second sides (43, 44).</p> |
