Flexible driving ring belt

F - Mech Eng,Light,Heat,Weapons – 16 – G

Patent

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Details

F16G 5/16 (2006.01)

Patent

CA 2436375

The invention comprises a flexible drive ring CVT belt. It comprises a flexible drive ring (3O) having a plurality of adjacent ring segments (31). The segments comprise metallic or non-metallic material sufficient to bear a compressive load imposed by CVT sheaves. The segments are interlocked along a longitudinal axis and are preloaded in the assembled position by an elastomeric member (50, 51). A tensile member or belt (20) bears on an outer circumfrential bearing surface formed by the interlocked segments. The tensile belt may comprise any belt known in the art, for example a multi-ribbed power transmission belt. The tensile member is moveable along a longitudinal axis relative to the flexible drive ring on the circumfrential bearing surface. The segments further comprise opposing inclined surfaces for engaging sheave surfaces on a pulley.

L'invention concerne une courroie CVT à anneau d'entraînement flexible. Ladite courroie comprend un anneau d'entraînement flexible (30) pourvu de plusieurs segments annulaires adjacents (31). Les segments comportent un matériau métallique ou non métallique suffisant pour supporter une charge de compression imposée par les réas CVT. Les segments sont interverrouillés le long d'un axe longitudinal et sont préchargés en position assemblée par un élément élastomérique (50, 51). Un élément de traction ou courroie (20) repose sur une surface de support circulaire extérieure formée par les segments interverrouillés. La courroie de traction peut être une courroie quelconque connue de l'état de la technique, par exemple une courroie de transmission de puissance à multiples nervures. L'élément de traction est amovible le long d'un axe longitudinal par rapport à l'anneau d'entraînement flexible sur la surface de support circulaire. Les segments comprennent également des surfaces inclinées opposées permettant de mettre en contact les surfaces des réas avec une poulie.

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