| 摘要 |
This invention relates to a pneumatic tire of the type having substantially inextensible lateral edges of a reinforced tread band portion, and, therefore, radially inextensible sidewalls. According to the invention, the sidewalls are convexly curved towards each other, i.e., turned towards the tire midplane so that internal pneumatic pressure acting laterally outwardly against said sidewalls simply tends to reduce their degree of convexity thereby placing them under compression. The sidewalls comprise three zones, two at the sidewall extremities and the third midway between the other two, which zones are of reduced bending stiffness relative to the remainder of the sidewall portions. |
