| 摘要 |
<P>PROBLEM TO BE SOLVED: To vulcanize tread rubber of a tire efficiently in manufacturing a tire having a block pattern provided with closed sipes within the block. <P>SOLUTION: The tire molding mold employed in vulcanization-molding a tire as follows includes, on the inside surface, the first sipe cutting edge for formation of sipes or grooves in the tire tread part or the second sipe cutting edge protruding in parallel with a convex part for formation of grooves. On the surface of the second sipe cutting edge opposite to the first sipe cutting edge or the convex part for formation of grooves, there are disposed two or more rib-like concave parts extending from the base of the second sipe cutting agent toward the front end in the protruding direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
