Tire for racing cars and sports cars, has trapezoidal groove that is inserted in tread of tire, where pressure ring is firmly used in groove and is made of outsole and insert

摘要

The tire (1) has a trapezoidal groove (2) that is inserted in a tread of the tire, where a pressure ring (3) is firmly used in the groove and is made of an outsole (4) and an insert (5). The insert is provided with a perforation (6), in which an aqueous liquid is injected. The radiation of a microwave radiator (8) heats the aqueous liquid that is partially vaporized. A curvature (3') is received by the vapor pressure of the pressure ring at the tire surface.