专利名称：TYRE TREAD WITH ZIG-ZAG GROOVES 发明人：LUIGI MAIOCCHI,LUIGI SILVA
申请号：AU2149377
申请日：19770120
why tiggy
公开号：AU497354B2
公开日：
19781207
专利内容由知识产权出版社提供
摘要：A pneumatic tire for vehicles has a tread band provided with grooves which extend circumferentially about the tire. The grooves are formed by a series of substantially rectilinear sections which are disposed at a predetermined angle with the equatorial plane of the tire and intersect to impart a zig-zag arrangement to the grooves about the tire. The intersections between said groove sections are situated in planes parallel to the equatorial plane of the tire, and each tread surface portion between one of the parallel planes and a pair of adjacent sections of a groove is shaped so the distance at its points from the tire axis gradually decreases from the parallel plane toward the region in which the sections of the pair of adjacent sections intersect.
申请人：PIRELLI, INDUSTRIE SPA
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