To provide a method for manufacturing a transmission belt which has short fibers uniformly and strongly adhered directly to the transmission surface of an embossed part of a rib part etc., of a vulcanized belt sleeve and hence suppresses noise on running.
A first sleeve 24 is positioned between an inner die 41 having a flexible jacket 42 fixed to its outer periphery and an outer die 46 having a die part 45 marked on the inner periphery. Then, the first sleeve 24 is subjected to expansion deformation to produce a pre-molded article 21 adhered to the die part 45. A second sleeve 25 is wound around the surface of the flexible jacket 42 of the inner die which is released from the outer die. Then, the inner die 41 is again installed in the outer die 46 and the flexible jacket 42 is expanded to vulcanize integrally the second sleeve 25 and the pre-molded article 21 to produce a belt sleeve 51. After the embossed surface 62 of the belt sleeve 51 is polished and set on two shafts, an adhesive is applied to the embossed surface 62 while the belt sleeve is being rotated, thus forming an adhesive layer 66. Finally, chopped fibers 65 are sprayed thereon to adhere.
HARA HIROTAKA
YOSHIKAWA TAKUYA
MORI TETSUJI
