公开(公告)号：US4387758A

公开(公告)日：1983-06-14

申请号：US296408

申请日：1981-08-26

申请人： Hideki Matsuda ,  Shigeo Makino ,  Noboru Sugimura

发明人： Hideki Matsuda ,  Shigeo Makino ,  Noboru Sugimura

IPC分类号： B60C3/04 ,  B60C9/08 ,  B60C3/00

CPC分类号： B60C3/04 ,  B60C9/0292 ,  Y10T152/10819 ,  Y10T152/10855

摘要： A heavy duty pneumatic low-sectional radial tire having an aspect ratio of not more than 0.8 is disclosed, which comprises a pair of bead portions, a pair of side portions, a tread portion extending across the side portions, and a reinforcement for a tire casing composed of at least one carcass ply extending across two bead cores and turning up around the bead core and containing cords embedded therein in a substantially radial direction of the tire, each cord having a modulus of not less than 4,000 kg/mm.sup.2, and a belt of at least two layers, each layer containing metal cords embedded therein, superimposed around a crown portion of the carcass and crossing with each other at a relatively small angle with respect to the equatorial line of the tire. In this tire, a carcass line of the tire casing at a temporarily mounted posture on a normal rim under an internal pressure of 0.5 kg/cm.sup.2 depicts a bow-shaped profile in tire section defined by a curved line, whose curvature being smaller with distance from a chord PQ at the outside thereof, where the PQ is a line segment connecting a point P to a point Q, the point P is an intersection of the carcass line and a normal line of the carcass line passing an alienating point of the bead portion from a rim flange or an inflection point of the carcass line when the intersection is located inside the inflection point and the point Q is an intersection of the carcass line and a radial line of the tire passing the point P. The bow-shaped profile of the carcass line is substantially symmetrical with respect to a substantially perpendicular bisector of the chord PQ as a symmetrical axis inside and outside thereof.

摘要翻译： 公开了具有不大于0.8的纵横比的重型气动低截面子午线轮胎，其包括一对胎圈部分，一对侧部，横过侧部延伸的胎面部分和用于轮胎的加强件 壳体由至少一个胎体帘布层组成，其延伸穿过两个胎圈芯并围绕胎圈芯向上转动，并且在轮胎的大致径向方向上包含嵌入其中的帘线，每根帘线具有不小于4000kg / mm2的模量， 皮带至少两层，每层包含嵌入其中的金属帘线，重叠在胎体的胎冠部分上，并相对于轮胎的赤道线以相对较小的角度相互交叉。 在该轮胎中，在0.5kg / cm 2的内部压力下，临时安装在法定轮辋上的轮胎胎体的胎体线描绘了由曲线限定的轮廓部分中的弓形轮廓，其曲率随距离变小 从其外部的和弦PQ，其中PQ是将点P连接到点Q的线段，点P是胎体线与通过胎圈的异化点的胎体线的法线的交点 当交叉点位于拐点内部时，轮辋凸缘或胎体线的拐点处的部分，并且点Q是胎体线与通过点P的轮胎的径向线的交点。弓形轮廓 胎体线相对于弦PQ的基本上垂直的二等分线基本上对称于其内部和外部的对称轴线。

公开(公告)号：US4495976A

公开(公告)日：1985-01-29

申请号：US478802

申请日：1983-03-24

申请人： Shigeo Makino ,  Noboru Sugimura

发明人： Shigeo Makino ,  Noboru Sugimura

IPC分类号： B60C9/02 ,  B60C15/06 ,  B60C9/08

CPC分类号： B60C15/06 ,  B60C15/0607 ,  Y10T152/10828 ,  Y10T152/10837

摘要： A combination radial tire for heavy load vehicles comprising a thread portion consisting of a combination of a belt composed of at least two metal cord layers and a carcass composed of at least two organic textile cord plies. In the lower half region of the carcass located at a bead portion, at least one additional reinforcing layer is interposed between the carcass plies and/or another additional reinforcing layer is interposed between the carcass ply and rubber stocks sandwiched between the carcass ply and its turn-up portion, these additional reinforcing layers being extended in parallel with the carcass ply cords and including organic textile cords.

摘要翻译： 一种用于重载车辆的组合子午线轮胎，包括由至少两个金属帘线层组成的皮带和由至少两个有机纺织帘线层组成的胎体组合的螺纹部分。 在位于胎圈部分的胎体的下半部区域中，在胎体帘布层之间插入至少一个额外的加强层和/或另外的另外的加强层插入在胎体帘布层和夹在胎体帘布层及其轮辋之间的橡胶原料之间 这些附加的增强层与胎体帘布层帘线平行延伸并且包括有机织物帘线。

公开(公告)号：US4366851A

公开(公告)日：1983-01-04

申请号：US269439

申请日：1981-06-02

申请人： Shigeo Makino ,  Noboru Sugimura

发明人： Shigeo Makino ,  Noboru Sugimura

IPC分类号： B60C15/00 ,  B60C15/06 ,  B60C9/08

CPC分类号： B60C15/06 ,  B60C15/0607 ,  Y10T152/10828 ,  Y10T152/10837

摘要： A pneumatic radial tire for heavy load vehicles comprising a body reinforcement and a bead portion reinforcement, in which the bead portion reinforcement substantially continuously covers the carcass ply wound around a bead core up to the inside of the tire, the upper end of the turn-up portion of the carcass ply and the outside upper end of the bead portion reinforcement covering the upper end of the carcass ply are arranged at an area other than a bead portion flexible region defined by two segments BC and AD as shown in attached FIG. 3, the bead portion reinforcement makes use of a cord having a modulus which corresponds to 15 to 60% of that of the ply cord of the carcass, and a tension at 100% elongation of a soft stiffener corresponds to 5 to 30% of that of a hard stiffener, the soft and hard stiffeners being disposed on the bead core one upon the other.

摘要翻译： 一种用于重载车辆的充气子午线轮胎，包括主体加强件和胎圈部分加强件，其中胎圈部分加强件基本上连续地覆盖缠绕在胎圈芯上的胎体帘布层直到轮胎内部， 覆盖胎体帘布层上端的胎圈部分增强部分的外侧上端部分布置在如图所示的由两个段BC和AD限定的胎圈部柔性区域以外的区域。 如图3所示，胎圈部加强部使用具有相当于胎体帘布层帘线帘线的15〜60％的模量的帘线，柔软的扶强材的100％的伸长率的张力相当于该软质加强件的5〜30％ 硬的加强件，柔软和硬的加强件一个接一个地设置在胎圈芯上。