公开(公告)号：US20180222257A1

公开(公告)日：2018-08-09

申请号：US15534147

申请日：2015-12-02

申请人： BRIDGESTONE CORPORATION

发明人： Shinsuke NAKAMURA

IPC分类号： B60C15/00 ,  B60C13/02 ,  B60C15/06 ,  B60C15/024

CPC分类号： B60C15/0036 ,  B60C13/02 ,  B60C15/00 ,  B60C15/024 ,  B60C15/06 ,  B60C2200/065 ,  B60C2200/14

摘要： A tire for a construction vehicle, provided with a pair of bead cores constituting a bead portion, and a carcass straddling the bead cores and having a folded ply folded back at the bead cores. The bead portion is provided with a plurality of recessed portions arranged at intervals around the tire circumferential direction so as to be recessed from the outside of the tire towards the folded ply. When SH represents the tire section height, H1 represents the height from the rim radius to the tire-radial-direction inside edge of the recessed portions, and H2 represents the height from the rim radius to the tire-radial-direction outside edge of the recess parts, the relationships H1/SH >0.04 and H2/SH

公开(公告)号：US20140000776A1

公开(公告)日：2014-01-02

申请号：US13930131

申请日：2013-06-28

申请人： BRIDGESTONE CORPORATION

发明人： Shinsuke NAKAMURA

IPC分类号： B60C11/11

CPC分类号： B60C11/11 ,  B60C11/0311 ,  B60C11/0316 ,  B60C11/1369 ,  B60C2011/0351 ,  B60C2011/0362 ,  B60C2200/06 ,  B60C2200/065

摘要： A pneumatic tire for heavy load has a tread, circumferential grooves (2) extending continuously in the tread circumferential direction, transverse grooves (5) opening to the circumferential grooves (2) adjacent each other in the tread width direction, and a block (6) defined by the circumferential grooves (2) and the transverse grooves (5) on a surface (1) of the tread. The block (6) is provided with one or more shallow grooves (7-9) having an average groove depth shallower than a groove depth of the circumferential grooves (2) adjacent to the block (6). The average groove depth of the shallow grooves (7-9) is greater than 20% and less than 80% of the groove depth of the circumferential grooves (2). At least one of the shallow grooves (7-9) opens to at least one of the transverse grooves (5) and the circumferential grooves (2) adjacent to the block (6).

摘要翻译： 一种重负荷用充气轮胎具有胎面，在胎面周向连续延伸的周向槽（2），在胎面宽度方向上相邻的周向槽（2）开口的横向槽（5）和块体（6） ）由胎面的表面（1）上的周向槽（2）和横向槽（5）限定。 块体（6）具有一个或多个浅槽（7-9），其平均槽深度比邻近块（6）的周向槽（2）的槽深度浅。 浅槽（7-9）的平均槽深度大于圆周槽（2）的槽深度的20％且小于80％。 至少一个浅槽（7-9）通向与块（6）相邻的横向槽（5）和周向槽（2）中的至少一个。