公开(公告)号：US4063861A

公开(公告)日：1977-12-20

申请号：US669666

申请日：1976-03-23

申请人： Oskar Schmidt ,  Erich Grunner ,  Horst Tompich ,  Gerhard Lenk ,  Adam Drum

发明人： Oskar Schmidt ,  Erich Grunner ,  Horst Tompich ,  Gerhard Lenk ,  Adam Drum

IPC分类号： B29D30/08 ,  B29B7/00 ,  B29B13/00 ,  B29C33/00 ,  B29C33/44 ,  B29C33/76 ,  B29C39/00 ,  B29C39/10 ,  B29C39/26 ,  B29C41/00 ,  B29C45/00 ,  B29C45/26 ,  B29C45/37 ,  B29C67/00 ,  B29D30/06 ,  B29F1/00 ,  B29C5/04 ,  B29H5/02 ,  B29H17/00

CPC分类号： B29C45/2616 ,  B29D30/06 ,  B29D30/0661 ,  Y10S425/044

摘要： A casting or injection mold for vehicle tires comprises two separable half-shells together defining an annular cavity into which a segmented core is introduced, radially inwardly converging core segments alternating with parallel-sided or radially inwardly diverging core segments to facilitate extraction of the core from the molded tire. In operation, one or more of the non-converging segments are immobilized within the mold, with the aid of mating formations on these segments and on the two half-shells, while the converging segments are urged radially inwardly by resilient or fluidic forces. In a specific embodiment these forces are supplied by a contractile annular spring with projections received in axially extending undercuts of all the segments.

摘要翻译： 用于车辆轮胎的铸造或注射模具包括两个可分离的半壳，所述两个可分离的半壳一起限定环形空腔，分段芯体被引入其中，径向向内会聚核心段与平行侧或径向向内分散的芯段交替，以便于将核心从 模制轮胎。 在操作中，借助于这些段上和两个半壳上的配合结构，将一个或多个非会聚段固定在模具内，同时会聚段通过弹性或流体力径向向内推动。 在一个具体实施例中，这些力由收缩环形弹簧提供，凸起被接收在所有段的轴向延伸的底切部分中。