| 摘要 |
A two-piece tire assembly (10) has a removable tread belt (12) for installing about the circumference of a tire carcass (14). The tread belt (12) has a radially outer ground contracting tread (15) and a radially inner belt reinforcing structure (100) having ply layers forming tread belts (84, 86, 88, 92). Radially inward of the belt reinforcing structure (100) is a radially inner portion (70), the radially inner portion (70) has a radially inner surface (72) in contact with the outer circumferential surface of the carcass (14). In one embodiment of the invention the radially inner surface (72) of the tread belt (12) and outer circumferential surface (71) of the carcass (14) have circumferentially extending grooves (74, 78) and ribs (72, 76) that complementarily interlock. Traversing the ribs (72, 76) of the carcass or the tread belt are fluid or gas venting subsurface passages (80, 82) that are open to one or more groove (74, 78). The venting subsurface passages (80, 82) provide a convective cooling system for the two-piece tire assembly (10). The carcass (14) has an abrasion resistant rubber layer (81) at the tread belt interface. The tread belt (12) also has the abrasion resistance tread compound (81) at the carcass (14) interface. <IMAGE> |
