发明名称 |
Molding element comprising cutting means for molding and vulcanizing a tire tread |
摘要 |
A molding element of a mold for molding and vulcanizing a tire tread, this tread comprising a tread surface intended to come into contact with the ground when the tire is running. The molding element comprises a molding surface intended to mold part of the tire tread surface and a blade of length L and of height H intended to mold a sipe or a groove in the tread. This blade comprises a rounded end extending along the length of the blade in a direction of extension X. The molding element further comprises two cutting means positioned on either side of the blade at a certain distance from this blade. Each cutting means comprises a cutting edge extending in the direction of extension, this cutting edge making an acute angle in a cutting plane perpendicular to this direction of extension, the height of this cutting edge being greater than or equal to the height of the blade. |
申请公布号 |
US9126377(B2) |
申请公布日期 |
2015.09.08 |
申请号 |
US201214365048 |
申请日期 |
2012.12.14 |
申请人 |
Compagnie Generale des Etablissements Michelin;Michelin Recherche et Technique S.A. |
发明人 |
Duvernier Marc;Abad Vincent;Perrin Frédéric |
分类号 |
B29D30/06 |
主分类号 |
B29D30/06 |
代理机构 |
Dickinson Wright PLLC |
代理人 |
Dickinson Wright PLLC |
主权项 |
1. A molding element of a mold for molding and vulcanizing a tire tread, the tread comprising a tread surface adapted to come into contact with the ground when the said tire is running, the molding element comprising:
a molding surface adapted to mold part of the tire tread surface, and a blade of length L and of height Hc adapted to mold a sipe or a groove in the tread, comprising a rounded end extending along the length of the blade in a direction of extension X, two cutting means positioned on either side of the blade at a certain distance from the blade, wherein each cutting means comprises a cutting edge extending in the direction of extension, this cutting edge making an acute angle α in a cutting plane perpendicular to the direction of extension X, wherein the height Hlc of the cutting edge is greater than or equal to the height of the blade Hc. |
地址 |
Clermont-Ferrand FR |