The present invention relates to a tyre tread 1 for a heavy civil-engineering vehicle and aims to provide a trade-off between resistance to mechanical attacks by stony soil and thermal venting. The tread has a medial portion 11 comprising at least one longitudinal row of blocks 3, each of which is transversely delimited by two longitudinal grooves 41 having a radially outer portion 411 and a radially inner portion 412 and longitudinally delimited by two transverse inter-block cut-outs 42 having a radially outer portion 421 and a radially inner portion 422. According to the invention, the maximum thickness (E11max, E21max) of each radially outer portion (411, 421) is, at most, equal to 20% of the depth (P1, P2) of the cut-out (41, 42) and strictly less than the maximum thickness (E12max, E22max) of the radially inner portion (412, 422) and the minimum thickness (E11min, E21min) of each radially outer portion (411, 421) is at least equal to 5% of the depth (P1, P2) of the cut-out (41, 42).
TYRE TREAD FOR A HEAVY CIVIL-ENGINEERING VEHICLE WITH IMPROVED TRADE-OFF BETWEEN STRENGTH/THERMAL WEAR
2023-12-21
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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