| 摘要 |
PROBLEM TO BE SOLVED: To further improve on the rim-setting capability and maneuvering stability while conquering the problem of instability and so forth in a stack of transversely-situated tires, the problem being an inherent fault of tires molded in a spread-toward-the-bottom form. SOLUTION: A bead-core 5 consists of a cable bead 12. A tire 1, in its meridional cross section a rim unset, has its inner face SI in a molded shape Y1 of a spread-toward-the-bottom state, while having the inner tire-stabilized-form Y2, wherein the tire shape is kept stably constant, in which a bead section 4 is held at an inward position further inside in the tire's axial direction than the position of the bead section 4 in the tire in the molded shape Y1. The difference (WC1-WC0) in the distance between WC1 and WC0, the former being the width of the core cross section center 5p of the bead core 5 in the tire in the inner tire-stabilized-form Y2, and the latter being the width of the center of the core in the tire with a rim set Y0, wherein the tire is rim-set by the use of a regular rim, comes in the range of 0 or more +25 mm. COPYRIGHT: (C)2009,JPO&INPIT |
