| 主权项 |
1. A V-belt for high load transmission comprising:
tension bands, each including
a cord buried inside a shape-retaining rubber layer, andnumbers of upper and lower grooves arranged in a belt length direction to vertically correspond to each other, the upper grooves being formed in an upper surface facing a back of the belt, and the lower grooves being formed in a lower surface facing a bottom of the belt; and numbers of blocks, each including
fit portions in which the tension bands are press-fitted,an upper tooth formed in upper surfaces of the fit portions and meshing with the upper grooves of the tension bands, anda lower tooth formed in lower surfaces of the fit portions and meshing with the lower grooves of the tension bands, wherein the tension bands are fitted in the fit portions of the blocks, thereby engaging and fixing the blocks with and to the tension bands, meshing of the teeth of the blocks with the grooves of the tension bands transmits power, a belt pitch width a being a belt width at a position of the cord of each tension band, and a meshing thickness b of the tension band between lower ends of the upper grooves and upper ends of the lower grooves satisfy a relationship of b/a≦0.08, and the meshing thickness b of the tension band and a total thickness c of the tension band being a thickness of each of cogs, which are portions of the tension band other than the upper and lower grooves, satisfy a relationship of c/b≧2.0. |
