Pneumatic tyre
A technology of pneumatic tires and tires, which is applied in the direction of special tires, tire parts, tire tread/tread pattern, etc., and can solve the problems of uneven ground pressure on the ground surface, easy wear, reduced handling stability and partial wear performance, etc. , to achieve the effect of high drainage performance
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[0081] Based on the specifications in Table 1, a trial production with figure 1 internal structure and figure 2 The size of the tread pattern is 175 / 65R15 pneumatic tires for passenger cars, and the handling stability is tested. The internals of the tires are the same. Each specification is as follows.
[0082] Tread width TW: 130mm
[0083] Groove width W1 of shoulder longitudinal groove: 10.0mm
[0084] Groove depth D1 of shoulder longitudinal groove: 8.2mm
[0085] Arrangement position L1 / TW of shoulder longitudinal groove: 23%
[0086] Angle θ1 of the groove wall on the tire equator side of the shoulder longitudinal groove: 15 degrees
[0087] Length ratio L4b / LA of the narrow portion of the shoulder lateral groove: 21%
[0088] Groove width W2 of straight longitudinal groove: 2.9mm
[0089] Groove width W3 of wavy longitudinal groove: 3.0mm
[0090] Groove depth D2 of straight longitudinal groove: 6.4mm
[0091] Groove depth D3 of wavy longitudinal groove: 6.4...
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