发明名称 |
Process for injection molding a tire having a crown and sidewalls of different compositions |
摘要 |
A process for injection molding a crown of a vehicle tire from one composition and the sidewalls from a different composition involves the steps of shaping the reinforcing structure in the mold, injecting a first composition over one side of the reinforcing structure to form a crown with a tread and injecting a second composition to form the sidewalls with an interface within the proximity of the edges of the reinforcing structure. In a preferred embodiment, the tire has the configuration of the one disclosed in U.S. Pat. No. 3,805,868. The annular reinforcing structure is shaped to be generally convex but concave towards the tread along its edges.
|
申请公布号 |
US4088523(A) |
申请公布日期 |
1978.05.09 |
申请号 |
US19750596409 |
申请日期 |
1975.07.16 |
申请人 |
INDUSTRIE PIRELLI S.P.A. |
发明人 |
GALLIZIA, ACHILLE;TANGORRA, GIORGIO |
分类号 |
B29D30/08;B29C35/00;B29C45/00;B29C45/14;B29C45/16;B29C67/00;B29D30/06;(IPC1-7):B29H5/00;B29H17/02 |
主分类号 |
B29D30/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|