公开(公告)号：US5345988A

公开(公告)日：1994-09-13

申请号：US35034

申请日：1993-03-22

申请人： Kazuyuki Kabe ,  Hajime Tomoda

发明人： Kazuyuki Kabe ,  Hajime Tomoda

IPC分类号： B60C11/00 ,  B60C11/04 ,  B60C11/12 ,  B60C11/06

CPC分类号： B60C11/042 ,  B60C11/0306 ,  B60C11/0309 ,  B60C11/124 ,  B60C2011/0388 ,  B60C2011/1213 ,  B60C2011/1254

摘要： A pneumatic radial tire for heavy loads, having steel belt layers provided on the inner side of a tread, and a tread pattern having a plurality of divisional ribs separated by a plurality of main grooves extending in the circumferential direction of the tire, characterized in that at least the inner vertical surfaces of left and right outermost main grooves out of the main grooves are formed so as to extend zigzag in the circumferential direction of the tire, narrow grooves which extend continuously in the circumferential direction of the tire being provided at the shoulder side edge portions of ribs internally adjacent to the outermost main grooves, the width W.sub.4 of the narrow grooves being set to a level in the range of 0.5-1 mm, the axes of the narrow grooves which extend in the direction of the depth thereof being inclined in the downwardly inward direction with respect to a normal of the tread surface, the narrow grooves forming laterally separated rib bodies and narrow ribs the height of which is smaller than that of the rib bodies, a ratio of a maximum width W.sub.2 of the narrow ribs to a total width W.sub.1 of the ribs on the inner side of the outermost main grooves being set to a level satisfying the relation W.sub.2 /W.sub.1 .ltoreq.0.3, an angle .alpha..sub.1 between the side surface which faces the relative outermost main groove of a maximum width portion of each narrow rib and a normal of the tread surface being set smaller than an angle .alpha..sub.2 between the side surface which faces the relative outermost main groove of a minimum width portion of each narrow rib and the same normal.

摘要翻译： 一种用于重负载的充气子午线轮胎，其具有设置在胎面内侧的钢带层，以及胎面花纹，其具有由在轮胎的周向延伸的多个主槽分隔开的多个分隔肋，其特征在于， 主沟槽中的左右最外主沟槽的至少内垂直表面形成为在轮胎周向上以锯齿形方式延伸，在轮胎的圆周方向上连续延伸的窄槽设置在胎肩 在与最外面的主沟槽相邻的肋的侧边缘部分中，窄槽的宽度W4设定在0.5-1mm的范围内，沿其深度方向延伸的窄槽的轴线为 相对于胎面表面的法线向下向内倾斜，窄槽形成横向分离的肋体和窄肋 其长度小于肋体的宽度，窄肋的最大宽度W2与最外侧主槽的内侧的肋的总宽度W1的比设定为满足关系W2 / W1 <0.3时，面对每个窄肋的最大宽度部分的相对最外侧主槽的侧面与胎面表面法线之间的角度α1被设定为小于侧面之间的角度α2 面对每个窄肋的最小宽度部分的相对最外面的主槽和相同的法线。

公开(公告)号：US4093014A

公开(公告)日：1978-06-06

申请号：US688425

申请日：1976-05-20

申请人： Hajime Tomoda ,  Kenhachi Mitsuhashi ,  Tuneo Morikawa

发明人： Hajime Tomoda ,  Kenhachi Mitsuhashi ,  Tuneo Morikawa

IPC分类号： B60C9/02 ,  B60C15/06

CPC分类号： B60C15/06 ,  Y10T152/10828 ,  Y10T152/10837

摘要： A radial ply pneumatic tire, having a high durability, comprising an improved bead portion thereof which comprises a bead wire bundle, a carcass ply of a metal tire cord fabric and a reinforcing ply, all embedded in a rubber matrix, the reinforcing ply having a portion thereof located in the outside surface layer in the bead portion and comprising a woven multifilament fabric consisting of multifilament warps in a density of 20 to 65 yarns/50 mm and multifilament wefts in a density of 20 to 65 yarns/50 mm and an endmost point of the portion of the reinforcing ply in the outside surface layer of the bead portion is located farther from the bead wire bundle than the endmost point of the carcass ply.

摘要翻译： 一种具有高耐久性的径向帘布层充气轮胎，其包括改进的胎圈部分，其包括胎圈丝束，金属轮胎帘线织物的胎体帘布层和全部嵌入橡胶基质中，所述增强层具有 其部分位于胎圈部分的外表面层中，并且包括由20至65根/ 50mm密度的复丝经纱组成的编织复丝织物，密度为20至65纱/ 50mm的复丝纬纱和最终的 胎圈部的外表面层中的增强层的部分的位置比胎圈帘布层的最末端远离胎圈丝束。

公开(公告)号：US4282918A

公开(公告)日：1981-08-11

申请号：US49034

申请日：1979-06-15

申请人： Hajime Tomoda ,  Ken Takahashi

发明人： Hajime Tomoda ,  Ken Takahashi

IPC分类号： B60C9/02 ,  B60C3/04 ,  B60C9/08 ,  B60C9/18 ,  B60C9/28 ,  B60C11/00 ,  B60C11/01 ,  B60C13/00

CPC分类号： B60C9/08 ,  B60C13/00 ,  B60C3/04 ,  B60C9/0292 ,  B60C9/18 ,  B60C9/28 ,  B60C2009/1842

摘要： A pneumatic tire having a carcass ply of metal cords arranged and embedded in the radial direction in a rubber is disclosed. This carcass ply has a natural sectional profile, and the position of the carcass ply in the shoulder portion of the tire satisfies the requirement of 0.3.ltoreq.t.sub.2 /t.sub.1 .ltoreq.1.0 in which t.sub.2 designates the thickness of the tire inside the carcass ply and t.sub.1 designates the thickness of the tire outside the carcass ply. In this shoulder portion, the thickness of an inner liner layer inside the carcass cord is gradually reduced toward the center of the tire top and the maximum width position of the tire. This pneumatic tire is preferably used for a high-load vehicle.

摘要翻译： 公开了一种具有在橡胶中沿径向布置和嵌入的金属帘线帘布层的充气轮胎。 该胎体帘布层具有自然的截面形状，并且胎体帘布层在轮胎的胎肩部分中的位置满足0.3≤t2/t1≤1.0的要求，其中t2表示胎体内的轮胎的厚度 帘布层和t1表示胎体帘布层外侧的轮胎的厚度。 在该胎肩部，胎体帘线内侧的内衬层的厚度朝向轮胎顶部的中心和轮胎的最大宽度位置逐渐减小。 该充气轮胎优选用于高负荷车辆。