| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for molding the tread surface of a tire capable of easily forming and inexpensively manufacturing the tread molding surface to stably keep the shape precision of the tread molding surface high. SOLUTION: Each of a predetermined number of divided bodies 16 divided in a circumferential direction in order to mold the tread surface Tr of the tire T is constituted of a mold part having a predetermined arcuate length and a holding member 18 for fixing and holding the mold part. The mold part is fixed to the holding member 18 in such a state that a large number of thin plate members 17 are laminated in the circumferential or lateral direction of the tire T. The thin plate members 17 are cut out of a thin metal plate material and the shape of a slice element SL obtained by slicing the tread surface is calculated by operation. On the basis of this shape data, each of the thin plate members 17 is numerically controlled and processed so as to constitute a part of the tread molding surface. By this method, a laminated mold having the tread molding surface formed on its inner peripheral surface is manufactured. COPYRIGHT: (C)2005,JPO&NCIPI |
