V-belt for low-loss power transfer
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United States of America Patent
Stats
-
Jul 29, 2003
Grant Date -
Dec 20, 2001
app pub date -
Jun 4, 2001
filing date -
Jun 2, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A V-belt transmits rotational movements between at least two belt pulleys and includes at least one endless load carrier and a plurality of transverse blocks mounted thereon. The load carrier is fitted into slots which extend from at least one inclined lateral surface of a block toward the center region thereof. The load carrier has a contact surface which faces a boundary surface of the slot in the block. The contact surface and the boundary surface are provided with convex and/or concave sections. To minimize losses and increase efficiency, the pressing force is reduced where the slide movement occurs. A contact region is assumed between the stretched state of the V-belt up to the state corresponding to the smallest running radius. In the entire contact region, a continuously changeable curvature or a composite of at least three sections of constant curvature is realized in such a manner that the curvature from the center of the contact region to the outer region increases.
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