专利名称：TIRE BLOCK
发明人：MATSUMOTO HIROYUKI,KOSEKI HIROYUKI 申请号：JP732489
申请日：19890113
公开号：JPH02189205A
公开日：
19900725
专利内容由知识产权出版社提供
摘要：PURPOSE:To improve ice performance without using a spike by providing the longitudinal center part of a block disposed in a tread part rearward in the rotating direction of a tire and inverting an extending direction at the longitudinal center part. CONSTITUTION:On the tread part 2 of a tire 1 are disposed a plurality of blocks 3. In this case, the respective blocks 3 are formed in the configuration of an angle on a plane. The block 3 formed between the longitudinal center part 4 and both end parts 5, 6 is extended straight while it is spread. Then, the extending direction is inverted at the center part 4, for example, changed to an opposite direction from a rightward and upward direction to a rightward and downward direction. The position, in a rotating direction, of the center part 4 (circumferential position) is disposed at a rear part in the rotating direction of the tire from both the ends 5, 6. Thus, both sides in the longitudinal direction of the respective blocks 3 are largely deformed without restricting mutually, thereby raising each edge in the vicinity of both ends 5, 6 so that it may cut into ice and the like.block truncated
申请人：BRIDGESTONE CORP
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