发明名称 |
TREAD FOR HEAVY-GOODS VEHICLE TIRE |
摘要 |
The tread has a total axial width W and a wearable thickness PMU of material and has at least four grooves on each side of a midplane that divides the tread axially into two parts. The grooves divide the tread into a middle, intermediate and edge regions 6. The middle region has an axial width Lm of at least 30% and at most 60% of the total width W. The total volume void ratio when new is less than 17%, and the middle region has a volume void ratio that is less than half the total volume void ratio. The middle region comprises a plurality of transverse sipes opening into the grooves, and the sipes have depths at least equal to 75% of the depth of the grooves. The number of transverse sipes in the middle region is greater than the number of transverse sipes on each intermediate or edge region. |
申请公布号 |
EP3102436(A1) |
申请公布日期 |
2016.12.14 |
申请号 |
EP20150702457 |
申请日期 |
2015.02.02 |
申请人 |
Compagnie Générale des Etablissements Michelin;MICHELIN Recherche et Technique S.A. |
发明人 |
ROLLAND, Maxime;MARLIER, Fabien;CRESS, Ronnie;MOORE, Ralston |
分类号 |
B60C11/03;B60C11/12 |
主分类号 |
B60C11/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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