V-shaped belt, belt-type transmission, and saddle-type vehicle

Abstract

To enhance the durability of the V-shaped belt by allowing the strength and the heat-radiating property of the resin blocks to stand together at high levels in the V-shaped belt, which has a plurality of resin blocks and endless connecting members connecting the resin blocks. The V-shaped belt includes a plurality of resin blocks arranged in a direction and an endless connecting member that is impacted into the resin blocks and that extends in the arrangement direction of the resin blocks. Depressions are longitudinally and vertically formed in the upside and downside of the front surface and the rear surface of each resin block. The depressions are separated from the connecting member and are also separated from the lateral surfaces of the resin block.

1 . A V-shaped belt comprising:
 a plurality of resin blocks each having first and second longitudinal surfaces, and first and second lateral surfaces arranged to engage inner surfaces of a sheave, the plurality of resin blocks arranged side-by-side in a longitudinal direction of the plurality of resin blocks; and   an endless connecting member extending in the longitudinal direction of the plurality of resin blocks and impacted into the plurality of resin blocks to connect the plurality of resin blocks to each other; wherein   each of the plurality of resin blocks include:
 a depression provided at a center of each of the first and second longitudinal surfaces and spaced inwardly from the first and second lateral surfaces, the depressions are exposed to air; and 
 carbon fibers arranged adjacent to or at a surface of the depressions so as to conduct heat from the plurality of resin blocks directly to the surface of the depressions. 
   
     
     
         2 . A V-shaped belt comprising:
 a plurality of resin blocks each having first and second longitudinal surfaces, and first and second lateral surfaces arranged to engage inner surfaces of a sheave, the plurality of resin blocks arranged side-by-side in a longitudinal direction of the plurality of resin blocks; and   an endless connecting member extending in the longitudinal direction of the plurality of resin blocks and impacted into the plurality of resin blocks to connect the plurality of resin blocks to each other; wherein   each of the plurality of resin blocks include:
 a depression provided at a center of each of the first and second longitudinal surfaces and spaced inwardly from the first and second lateral surfaces, the depressions are exposed to air; and 
 the first and second lateral surfaces extend upwards to a point that is located below tops of the plurality of resin blocks and corresponds to a maximum longitudinal width of the plurality of resin blocks; wherein 
   the depressions extend from the tops of the plurality of resin blocks to a point below the point to which the first and lateral surfaces extend upwards.   
     
     
         3 . The V-shaped belt according to  claim 2 , further comprising:
 a bottom depression provided at the center of each of the first and second longitudinal surfaces and spaced inward from the first and second lateral surfaces, the bottom depressions being exposed to air; wherein   the first and second lateral surfaces extend from a lower point above bottoms of the plurality of resin blocks; and   the bottom depressions in the first and second longitudinal surfaces extend from the bottoms of the plurality of resin blocks to a point above the lower point of the first and lateral surfaces.   
     
     
         4 . A V-shaped belt comprising:
 a plurality of resin blocks each having first and second longitudinal surfaces, and first and second lateral surfaces arranged to engage inner surfaces of a sheave, the plurality of resin blocks arranged side-by-side in a longitudinal direction of the plurality of resin blocks; and   an endless connecting member extending in the longitudinal direction of the plurality of resin blocks and impacted into the plurality of resin blocks to connect the resin blocks to each other; wherein   each of the plurality of resin blocks include:
 a depression provided at a center of each of the first and second longitudinal surfaces and spaced inwardly from the first and second lateral surfaces, the depressions are exposed to air; and 
 first and second grooves extending inwards from the first and second lateral surfaces, the endless connecting member arranged within the first and second grooves, and inner portions of the first and second grooves angling inward so as to meet at a single point that defines an innermost point of the first and second grooves. 
   
     
     
         5 . A V-shaped belt comprising:
 a plurality of resin blocks each having first and second longitudinal surfaces and first and second lateral surfaces arranged to engage inner surfaces of a sheave, the plurality of resin blocks arranged side-by-side in a longitudinal direction of the plurality of resin blocks; and   an endless connecting member extending in the longitudinal direction of the plurality of resin blocks and impacted into the plurality of resin blocks to connect the plurality of resin blocks to each other; wherein   each of the plurality of resin blocks include:
 a depression provided at a center of each of the first and second longitudinal surfaces and spaced inwardly from the first and second lateral surfaces, the depressions are exposed to air; wherein 
 a cross-sectional shape of a top of each of the plurality of resin blocks along the center of the first and second longitudinal surfaces is curved such that air can smoothly flow from the depression on the first longitudinal surface over the top of each of the plurality of resin blocks to the depression on the second longitudinal surface. 
   
     
     
         6 . A V-shaped belt comprising:
 a plurality of resin blocks each having first and second longitudinal surfaces, and first and second lateral surfaces arranged to engage inner surfaces of a sheave, the plurality of resin blocks arranged side-by-side and abutting each other in a longitudinal direction of the plurality of resin blocks; and   an endless connecting member extending in the longitudinal direction of the plurality of resin blocks and impacted into the plurality of resin blocks to connect the plurality of resin blocks to each other; wherein   each of the plurality of resin blocks include:
 a depression provided at a center of each of the first and second longitudinal surfaces and spaced inwardly from the first and second lateral surfaces, the depressions are exposed to air; and 
 carbon fibers arranged to conduct heat from the plurality of resin blocks to a surface of the depressions.