| 摘要 |
PURPOSE:To enable the contact area with ground to be increased preventing a tire effectively from slipping by combining two tires in such a way that the tire pressure in an inner tire is kept ordinary, but the tire pressure in an outer tire is set to be lower than that of the inner tire. CONSTITUTION:This tire is composed of an inner tire and an outer tire. And the tire pressure in the outer tire is set to be lower that of the inner tire so that the inner surface 2B of the outer tire B comes in contact with the outer surface 1A of the inner tire A at the section where the tire is in touch with ground. Thus, the configuration where the inner surface 2B of the outer tire touches the outer surface 1A of the inner tire, enable contact area of the tire to be increased allowing frictional coefficient at the contact surface to be increased. This prevents the tire from slipping on a road which is compressedly covered with snow enabling the braking effect to be augmented when a car stops. |
