| 摘要 |
In a belt type continuously variable transmission having a variable width drive pulley, a variable width driven pulley, and a metal V belt, which is disposed around the drive and driven pulleys, the contour of the surfaces (V faces) in contact with the metal V belt in the cross-sectional view through the axes of the drive and driven pulleys is an arc that has a first radius of curvature rp and is convex to the metal V belt. The contour of the surfaces (V faces) in contact with these two pulleys in the cross-sectional view perpendicular to the longitudinal direction of the metal V belt is an arc that has a second radius of curvature re and is convex to the drive and driven pulleys.
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