| 摘要 |
<p>1,240,593. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. 3 April, 1969 [24 April, 1968], No. 17531/69. Heading B7C. A pneumatic tyre tread surface has several circumferentially extending zig-zag grooves 5, the side surfaces 7 of which are inclined at angleαto the normal to the tread surface. The anglesαin successive sections 6 of each groove are inclined in opposite directions from each other. The axially adjacent sections of different grooves also have their angles of inclination in opposite directions.</p> |
