BELT STRUCTURE OF A HEAVY-DUTY TIRE, CAPABLE OF WORKING FAVORABLY AGAINST VISCOUS IMPACT AND IMPROVING DURABILITY OF A TIRE

摘要

PURPOSE: A belt structure of a heavy-duty tire is provided to reduce heat generation of a heavy-duty tire and increase belt lift ratio, thereby enhancing durability of the tire and working favorably against viscous impacts.;CONSTITUTION: A belt structure of a heavy-duty tire comprise a belt layer, a spire coil group(9), a corrugated portion(10). The belt layer consists of a first belt which is embedded within a tread, a rubber layer contacting roads, and is adjacent to a carcass; a second belt, a third belt, and a forth belt which are sequentially laminated on the first belt in the numbered order. The spiral coil group is arranged between the second and the third belt. The corrugated portion is integrated with a spiral coil(8). The spiral coil having the corrugated portion is arranged skipping an adjacent spiral coil(8a) and the corrugated portions are consecutively arranged in a V shape or a reverse V shape along the driving direction of a tire.;COPYRIGHT KIPO 2013