Driven unit for a continuously-variable-ratio drive, and relative drive belt removal method
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United States of America Patent
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Issued Date -
Aug 26, 2004
app pub date -
Dec 19, 2003
filing date -
Dec 20, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A driven unit for a continuously-variable-ratio drive, having a fixed half-pulley assembly having a fixed half-pulley connected to an output member of the drive; a movable half-pulley assembly having a movable half-pulley mounted to slide axially with respect to the fixed half-pulley to form with it a V-shaped groove of variable width for a V-shaped belt; and a spring which forces the half-pulleys towards each other to keep the half-pulleys in contact with the belt; the fixed half-pulley assembly has one or more threaded through axial holes in which to screw respective screws, which cooperate with an annular surface axially facing the holes in the fixed half-pulley assembly to exert thrust on the surface and part the half-pulleys in opposition to the spring.
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