Crown of a tire for a heavy vehicle that is desensitized to attacks. The tire (1) comprises tread (2) having a median degree of surface siping TLC, expressed in m/m2, equal to the ratio between the cumulative length LDC of the cuts (21), present in a median portion of tread of axial width WC, and the median area AC of the radially outer surface (23) of the tread (2), and protective reinforcement (4) comprising at least two protective layers (41, 42) that are formed of elastic metallic reinforcers and have a maximum breaking strength Rmax, expressed in daN/m, such that the median degree of surface siping TLC of tread (2) is at least equal to 5 m/m2 and a coupling ratio CC, equal to the ratio between the maximum breaking strength Rmax and the median degree of surface siping TLC, is at least equal to 18 000 daN.
Tire Crown For A Heavy Duty Civil Engineering Vehicle
2020-03-12
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Crown reinforcement for a tire for a heavy-duty civil engineering vehicle
European Patent Office | 2020
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European Patent Office | 2017
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