The subject of the present invention is a tyre tread for a heavy-duty vehicle of construction plant type and aims to reduce the risk of cracking at the sipe bottom, without significantly reducing the volume of material of the tread so as not to shorten the lifetime of the tyre in respect of wear. According to the invention, the tread (1) comprises transverse sipes (5) having a depth H and a width E, each transverse sipe (5) having a radially inner end formed by a bulge (53) having an end radius R, the transverse sipes (5) being distributed longitudinally at a longitudinal spacing B, the depth H, the width E of each transverse sipe (5), the end radius R of the bulge (53) and the longitudinal spacing B satisfying the relationship (R*B)/(E*H)>= 1.8.
Tyre tread for a heavy-duty vehicle of construction plant type
16.12.2021
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Tire Tread for a Heavy-Duty Vehicle of Construction Plant Type
Europäisches Patentamt | 2022
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