| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress plastic deformation of a tread molding part upon vulcanization under improving heat conduction by reducing thickness of a tread molding part. <P>SOLUTION: A rigid core tire vulcanization includes: a toroidal hollow core body installed with a tread molding part; a sidewall molding part; and a bead molding part. The core body is formed by a first core segment wherein divided surfaces in both end parts in a peripheral direction are formed in an inwardly inclined surface and a second core segment wherein divided surfaces in both end parts in a peripheral direction are made an outwardly inclined surface conforming with the inwardly inclined surfaces. The second core segment is installed with a concave part concaving in a direction of reducing a peripheral width at the end part of at least one peripheral direction of the tread molding part and between the end peripheral parts of the tread part, and the first core segment is installed with a convex part matching to the concave part at the end in the peripheral direcion of the tread molding part. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
