发明名称 |
TREAD, THE ROLLING NOISE OF WHICH IS REDUCED |
摘要 |
Tire for heavy goods vehicle having a tread comprising a plurality of circumferential grooves delimiting intermediate ribs and two edge ribs each circumferential groove comprising a plurality of protuberances formed as a protrusion on at least one lateral wall delimiting this groove, wherein: facing each protuberance, a half-closed notch has an axial length La at most equal to 60% of the minimum width Ln of this rib, and a width Le at most equal to the width Lr of the groove oriented so as to make an average angle B at least equal to 10 degrees with the main direction of the protuberance, each protuberance closes the section of the groove in which it is formed over at least 35% and at most 75% of the surface of the said section, a functional clearance (J1, J2) is arranged between the protuberance and the walls delimiting the half-closed notch. |
申请公布号 |
EP2588327(A1) |
申请公布日期 |
2013.05.08 |
申请号 |
EP20110730262 |
申请日期 |
2011.06.29 |
申请人 |
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN;MICHELIN RECHERCHE ET TECHNIQUE S.A. |
发明人 |
BOURNAT, ALEXIS;FOUCHER, BENOIT;MARTIN, DIDIER, MICHEL;QUANTINET, BENJAMIN |
分类号 |
B60C11/04 |
主分类号 |
B60C11/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|