| 摘要 |
1534689 Pneumatic tyres BRIDGESTONE TIRE KK 29 Dec 1975 [28 Dec 1974] 52951/75 Heading B7G A pneumatic tyre for off-the-road vehicles comprises a cross-ply carcass 2 whose cords are of organic fibre and inclined at 23-45 degrees to the tyre mid-circumferential plane, and a breaker layer 7b which has a width of 40-60% of the tyre tread width and comprises reinforcing elements each formed of a bundle or cord of filaments of a material with a tensile strength of at least 140 kg./mm.<2> and each inclined to the mid-circumferential plane at an angle which is not larger than the carcass cord angle by more than 5 degrees and not smaller than the carcass cord angle by more than 15 degrees, that region of the tyre tread 5 coextensive with the layer 7b having a greater cut resistance than the remainder of the tread. |
