| 摘要 |
Method of manufacturing a pneumatic tire having a cast body (12) of viscoelastic material, a road-engaging tread surface (11) and a girdle member (17) of reinforcing cords (18) located in the crown area (14) of the cast body (12). The method comprises the steps of assembling an annular hoop assembly (50) with the girdle member (17) located on the inner periphery of the hoop assembly (50) and a spacing support member (51) located on the outer periphery of the hoop assembly (50); inverting or turning the hoop assembly (50) inside out thereby locating the girdle member (17) on the outer periphery (without changing its predetermined cord diameter, radius of curvature and cord tension) and the spacing support member (51) on the inner periphery; mounting the inverted hoop assembly (50) on the annular core (30, 31) of a tire mold (61) so that the girdle member (17) has its reinforcing cords (18) at the exact cord centerline diameter desired; closing the tire mold (61); filling it with a viscoelastic material and curing the material. The method may be used to manufacture a tire with a tread of viscoelastic material or of conventional, carbon black reinforced, rubber. |
