Tread for heavy-duty vehicle tire, having tread surface with at least one cavity forming a hidden channel which forms an additional groove after an amount of wear, each channel extended towards tread surface in the new state along its entire length by a sipe of small width, at least one channel having plurality of extensions from this channel towards tread surface to place the channel and the outside of the tread into communication from an amount of partial wear of the tread, each extension being a secondary channel having a first opening of elongate shape with a minimum dimension I0 and a maximum dimension Lo that opens onto tread surface and a second opening that opens into channel, wherein for at least one channel provided with extensions, each first opening of these extensions is formed by a side of the sipe that extends the channel.
Tread Having Hidden Cavities Extended by Offset Openings
2022-02-24
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Tread having hidden cavities extended by offset openings
European Patent Office | 2024
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