Drive belt for a transmission with convex pulley sheaves

Drive belt for a transmission with convex pulley sheaves

  • CN 101,072,959 B
  • Filed: 12/07/2005
  • Issued: 04/24/2013
  • Est. Priority Date: 12/08/2004
  • Status: Active Grant
First Claim
Patent Images

1. stepless speed variator that is used for motor vehicle, be provided with two pulleys (1,2), each pulley includes two pulley sheave (4 that are essentially taper, 5), described wheel disc (4,5) be disposed radially protruding curvature, and the variable radial position (R) that driving belt (3) remains between them is located, described driving belt (3) is provided with lateral direction element (32), and described lateral direction element (32) is provided with side (40) at two cross sides, and described side (40) are used for and pulley (1,2) rubbing contact and at least along its short transverse, namely with respect to pulley (1,2) radially, be provided with protruding curvature, wherein, in described side (40), be provided with one or more grooves (41);

  • Whole width or the height dimension of described groove (41) extend through side (40), each groove (41) therefore form the passage of opening when described element (32) contacts with pulley (1,2).

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