公开(公告)号：US09492980B2

公开(公告)日：2016-11-15

申请号：US14888164

申请日：2014-04-28

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji Kawagoe

IPC: B29D30/06 ,  B29C33/02 ,  B29C33/30 ,  B60C11/12

CPC classification number: B29D30/0629 ,  B29C33/02 ,  B29C33/301 ,  B29D30/0606 ,  B29D2030/0612 ,  B29D2030/0617 ,  B60C11/12

Abstract: A tire mold and tire reduce manufacturing and facilities costs and improve appearance of a product tire. The tire mold includes a tread molding body that molds a tread surface of a tire and is formed by pieces aligned in a circumferential direction of the mold. The tread molding body includes, on a mold face thereof, groove forming protrusions that form grooves on the tread surface and land forming recesses that form land portions on the tread surface and are surrounded by the groove forming protrusions. In a development view in which the pieces are connected, an air release gap in communication with the mold face of the pieces is provided along a boundary line between the pieces. At least one boundary line cuts across a plurality of the land forming recesses. Each boundary line extends through a bend, and the bend is positioned in the groove forming protrusions.

Abstract translation: 轮胎模具和轮胎减少了制造和设备成本并改善了产品轮胎的外观。 轮胎模具包括：胎面成型体，其模制轮胎的胎面表面，并且通过在模具的圆周方向上排列的片形成。 胎面成型体在其模具面上包括形成在胎面表面上的凹槽的凹槽形成突起和在胎面表面上形成胎面部分并由沟槽形成突起包围的接合形成凹部。 在连接片的展开图中，沿着片之间的边界线设置与片的模具表面连通的空气释放间隙。 至少一条边界线穿过多个接合区形成凹槽。 每个边界线延伸穿过弯曲部分，并且弯曲部位于凹槽形成突起中。

公开(公告)号：US20150183271A1

公开(公告)日：2015-07-02

申请号：US14412140

申请日：2013-06-25

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji Kawagoe

IPC: B60C9/02

CPC classification number: B60C9/02 ,  B29D30/52 ,  B29D30/58 ,  B60C2009/0223 ,  B60C2009/0276 ,  B60C2009/0284

Abstract: The invention provides a base tire manufacturing method and a base tire having a proper thickness for the rubber layer by setting the thickness of the rubber layer in such a manner as to optimize the buffing allowance for the cure-molded base tire without placing limits on the shape of the post-buffing base tire. The base tire thus manufactured has a belt layer, an outermost rubber layer of a predetermined width disposed over the belt layer for application of a tread therto, and edge rubber members at both axial ends of the outermost rubber layer. For this base tire, the loss tangent of the outermost rubber layer is set lower than the loss tangent of the edge rubber members, the pre-buffing thickness A1 at the equator of the outermost rubber layer is set at “post-buffing thickness A2×150%” or less, and the post-buffing thickness A2 is set in a range of 1 mm to 3.5 mm.

Abstract translation: 本发明提供一种基础轮胎制造方法和具有适合橡胶层厚度的基础轮胎，其通过将橡胶层的厚度设定为优化固化模制基础轮胎的抛光余量而不对 后抛光基轮胎的形状。 如此制造的基础轮胎具有带层，设置在用于胎面涂层的带束层上的预定宽度的最外层橡胶层，以及在最外层橡胶层的两个轴向端部处的边缘橡胶构件。 对于该基础轮胎，将最外侧橡胶层的损耗角正切设定为低于边缘橡胶构件的损耗角正切，将最外侧橡胶层的赤道处的预抛光厚度A1设定为后抛光厚度A2× 150％以下，后抛光厚度A2设定在1mm〜3.5mm的范围内。