V-Ribbed Belt and Application Thereof
AssigneeMitsuboshi Belting Ltd.
InventorsHiroki Imai, Yuji Maruyama, Arata Hasegawa
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Abstract
A V-ribbed belt includes a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another, and a compression rubber layer including a frictional power transmission face at least a part of which can come into contact with a V-rib groove portion of a pulley. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A difference (Rp−Rb) between a curvature radius Rp of a rib top end of the pulley and a curvature radius Rb of a rib bottom portion of the V-ribbed belt is −0.08 to 0.08 mm.
Claims12
A V-ribbed belt comprising:
- a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another;
- and a compression rubber layer comprising a frictional power transmission face at least a part of which can come into contact with a V-rib groove portion of a pulley,
- wherein the frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver, and
- a difference (Rp−Rb) between a curvature radius Rp of a rib top end of the pulley and a curvature radius Rb of a rib bottom portion of the V-ribbed belt is −0.08 to 0.08 mm.
Dependencies are inferred from the claim text.