| 摘要 |
PURPOSE: A tire having double wing rubber sills is provided to decrease resistance to the wheel of the vehicle, and to improve the stability of the vehicle by forming the recessed center between the protruded rubber sills and reducing the contact area of the tire and the road surface. CONSTITUTION: A tire is composed of two double wing sills(1) and a recessed center(7), and two sills are protruded at both sides of the tire. A middle part(6) is recessed gradually between the two protruded sills of the tire, and spaced from the surface of the road. The tire is contacted to the surface of the road with 1/3 to 2/4 of the total area of the tire. Force to the tire in contacting the tire of the vehicle on the surface of the road is divided and distributed from the center of the tire into two protruded sills. Thus, resistance of the vehicle to the tire is decreased by reducing the contact area of the tire and the surface of the tire. The safety is improved by supporting the vehicle with two protruded sills.
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