Patent ID: 8632650

Claim:
A method for manufacturing a V-ribbed belt, comprising steps of: placing belt materials comprising a backing fabric, an adhesive rubber, a tensile cord, and a belt matrix about a mandrel; placing a rib-cover fabric about the external circumference of said belt materials which wrap around said mandrel; placing said mandrel, which is wrapped by said belt materials and said rib-cover fabric, inside a shell having a plurality of grooves for molding a multi-ribbed structure on its internal circumference; expanding said belt materials and said rib-cover fabric toward the internal circumference of said shell and thus pressing said rib-cover fabric to said internal circumference to form said multi-ribbed structure; and curing said belt matrix with said rib-cover fabric and with the belt matrix penetrating into the mesh of said rib-cover fabric; wherein said rib-cover fabric is stretchable to accommodate itself to said multi-ribbed structure.