| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tire mold capable of preventing cracks on a tire outer surface while securing fluidity of rubber, a method of manufacturing a pneumatic tire and the pneumatic tire. <P>SOLUTION: In the tire mold M for vulcanizing and molding the tire, a tire molding surface 10 pressed against the tire outer surface includes a rough surface molding portion 1. In the rough surface molding portion 1, a maximum height Rz is 4 μm or more, a load length ratio Rmr(c) in a case where 20% of the maximum height Rz is set to be a cutting level c is 3.5% or more, and a load length ratio Rmr(c) in a case where 30% of the maximum height Rz is set to be the cutting level c is 25% or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
