Pneumatic radial tire for heavy loads
    1.
    发明授权
    Pneumatic radial tire for heavy loads 失效
    用于重载的气动子午线轮胎

    公开(公告)号:US5345988A

    公开(公告)日:1994-09-13

    申请号:US35034

    申请日:1993-03-22

    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。

    Flat Heavy-Duty Pneumatic Radial Tire and Method of Manufacturing the Same
    2.
    发明申请
    Flat Heavy-Duty Pneumatic Radial Tire and Method of Manufacturing the Same 审中-公开
    平重型气动径向轮胎及其制造方法

    公开(公告)号:US20090211685A1

    公开(公告)日:2009-08-27

    申请号:US11922743

    申请日:2006-06-23

    IPC分类号: B60C9/18 B29C35/02

    CPC分类号: B60C9/20 B60C9/22

    摘要: A flat heavy-duty pneumatic radial tire having a 0-degree belt layer formed of steel cords and increased in durability, wherein multiple plies of steel cord belt layers (6) are disposed on the outer periphery of a carcass layer (4). The steel cord belt layers (6) includes at least one ply of the 0-degree belt layer with a cord angle of substantially 0° relative to the circumferential direction of the tire and at least two plies of bias belt layers (8) with a cord angle substantially equal to an equilibrium angle of within a range of 45° to 65° relative to the circumferential direction of the tire. The tire is manufactured as follows. The tire cured and molded in a mold is released from the mold, assembled with a rim to be inflated while the tire is hot, and then cooled to normal temperature under the inflated condition.

    摘要翻译: 一种扁平重型充气子午线轮胎,其具有由钢帘线形成的0度带束层,并且耐久性提高,其中在胎体层(4)的外周上设置有多层帘线带束层(6)。 钢帘线带层(6)包括至少一层0度带层,帘线角度相对于轮胎的圆周方向大致为0°,并且至少两层偏压带层(8)具有 帘线角度基本上等于相对于轮胎的圆周方向在45°至65°的范围内的平衡角。 轮胎的制造如下。 在模具中固化和模塑的轮胎从模具中释放出来,在轮胎热的时候与轮胎组装好要被充气的轮缘,然后在膨胀的条件下冷却到常温。

    Method of designing rubber composite
    3.
    发明授权
    Method of designing rubber composite 失效
    橡胶复合材料的设计方法

    公开(公告)号:US07050952B2

    公开(公告)日:2006-05-23

    申请号:US09973758

    申请日:2001-10-11

    IPC分类号: G06F17/10 G06F7/60 G06G7/48

    摘要: Disclosed is a method of designing rubber composite executed as follows. A shape of the rubber composite, a shape of the each part (i) constituting the rubber composite and physical properties of a rubber material used for each part (i) are tentatively selected respectively. Thereafter, the rubber composite is divided into many finite elements, and strain in each element is calculated by the finite element method to obtain maximum principal strain (εi)max of the elements in each part (i). Then, the tentative selections of the shape of the rubber composite, the shape of each part (i) and the physical properties of the rubber material, and the calculations by the finite element method are repeated until an allowance ratio Sia calculated as a ratio of strain (εi)b at break to the maximum strain (εi)max becomes equal to a specified reference allowance ratio S0 or higher in all of the parts (i). The shape of the rubber composite, the shape of each part (i) and the physical properties of the rubber material are thus determined.

    摘要翻译: 公开了如下设计橡胶复合材料的方法。 暂时选择橡胶复合体的形状,构成橡胶复合体的各部分(i)的形状和用于各部分(i)的橡胶材料的物理性质。 此后,橡胶复合材料被分成许多有限元素,并且通过有限元法计算每个元件中的应变以获得最大主应变(εmax) 每个部分(i)中的元素。 然后,重复橡胶复合材料的形状,各部分(i)的形状和橡胶材料的物理特性以及有限元法的计算的暂时选择,直到容许率S < / SUB>以断裂处的应变(εεεi B B)与最大应变(εmax)的比值计算, / SUB>在所有部分(i)中变得等于指定的基准容限比S 0> 0或更高。 因此确定了橡胶复合材料的形状,每个部分(i)的形状和橡胶材料的物理性能。

    Pneumatic radial tire having at least two zigzag belt layers
    5.
    发明授权
    Pneumatic radial tire having at least two zigzag belt layers 失效
    具有至少两个之字形带束层的气动子午线轮胎

    公开(公告)号:US6058997A

    公开(公告)日:2000-05-09

    申请号:US11758

    申请日:1998-02-25

    IPC分类号: B60C9/20 B60C9/26 B60C9/18

    摘要: A pneumatic radial tire has at least two belt layers disposed at a tread portion thereof, wherein the two belt layers are constituted by inclining a strip formed by aligning a plurality of reinforcing cords to a tire circumferential direction and extending it zigzag in the tire circumferential direction so that the strip is turned back from the lower belt layer to the upper belt layer at both end portions of the two belt layers, and zone portions in which the reinforcing cords incline to the right in the tire circumferential direction and the zone portions in which the reinforcing cords incline to the left in the tire circumferential direction are alternately arranged.

    摘要翻译: PCT No.PCT / JP97 / 02587第 371日期:1998年2月25日 102(e)1998年2月25日PCT 1997年7月25日PCT公布。 第WO98 / 04424号公报 日期1998年2月5日充气子午线轮胎在其胎面部分具有至少两个带束层,其中两个带束层通过将通过将多根加强帘线对准轮胎周向形成的条带倾斜而形成,并且以锯齿形延伸 在轮胎周向方向上,使得条带在两个带束层的两个端部处从下带束层转移到上带束层,以及加强帘线在轮胎周向方向上向右倾斜的区域部分,以及 加强帘线在轮胎周向上向左倾斜的区域交替布置。

    Heavy duty and medium pneumatic radial tire
    6.
    发明授权
    Heavy duty and medium pneumatic radial tire 失效
    重载和中等充气子午线轮胎

    公开(公告)号:US4942914A

    公开(公告)日:1990-07-24

    申请号:US277811

    申请日:1988-11-30

    IPC分类号: B60C9/20 B60C9/22 B60C9/28

    摘要: A heavy duty and medium pneumatic radial tire having a belt layer composed of at least three layers between a carcass layer and a tread, wherein the first belt layer as numbered from the carcass layer towards the tread is separated into two parts at the central region of a crown and at least one organic fiber cord layer is disposed in a space formed by the separation of the first belt layer.

    摘要翻译: 一种重型和中等充气子午线轮胎,其具有在胎体层和胎面之间由至少三层构成的带束层,其中从胎体层向胎面编号的第一带束层在中心区域分离成两部分 冠部和至少一个有机纤维帘线层设置在通过分离第一带束层形成的空间中。

    Pneumatic radial tire
    7.
    发明授权
    Pneumatic radial tire 失效
    气动子午线轮胎

    公开(公告)号:US4890658A

    公开(公告)日:1990-01-02

    申请号:US252721

    申请日:1988-10-03

    IPC分类号: B60C11/01

    CPC分类号: B60C11/01

    摘要: A radial tire with a split structure in the first belt layer provided with an organic fiber cord layer in the split structure and having a narrow groove extending in the circumferential direction of the tire and provided in each of both shoulder portions of the surface of a tread, wherein the narrow groove has a depth h determined in the radial direction of the tire, and a distance d.sub.1 measured between the internal edge on the shoulder side of an opening portion of the narrow groove and the radially outermost surface of the shoulder portion as determined along a parallel line to the surface of the tread, and a distance d.sub.2 measured between the internal wall surface on the shoulder side of the bottom of the narrow groove and the radially outermost surface of the shoulder portion as determined along a parallel line to the surface of the tread, wherein d.sub.1 is less than 15 mm and is smaller than d.sub.2, and a shape factor m defined by the following equation is 0.8 to 1.2: ##EQU1##

    Heavy duty pneumatic radial tire
    8.
    发明授权
    Heavy duty pneumatic radial tire 失效
    重型充气子午线轮胎

    公开(公告)号:US4881587A

    公开(公告)日:1989-11-21

    申请号:US190449

    申请日:1988-05-05

    IPC分类号: B60C9/18 B60C9/20

    CPC分类号: B60C9/20 Y10T152/10792

    摘要: An improvement in the structure of the belt portion of a heavy duty radial tire for use in trucks, large-size buses, small-sized trucks, etc., and more particularly, a heavy duty pneumatic radial tire improved with respect to the driving stability under heavy duty conditions while ensuring the durability of the tire (belt portion) during high speed running through the provision of at least three belt layers between the tread surface and the carcass layer of the tire and the specification of the relationships between the angles of the cords constituting these plurality of belt layers.

    摘要翻译: 用于卡车,大型客车,小型卡车等的重型子午线轮胎的带部分的结构的改进,更具体地,涉及相对于驾驶稳定性而改进的重型充气子午线轮胎 在重载条件下,同时通过在轮胎的胎面表面和胎体层之间提供至少三个带束层来确保高速行驶期间的轮胎(带部分)的耐久性,并且规定了轮胎 构成这些多个带束层的帘线。

    Pneumatic tires
    9.
    发明授权
    Pneumatic tires 失效
    气动轮胎

    公开(公告)号:US4387755A

    公开(公告)日:1983-06-14

    申请号:US220913

    申请日:1980-12-29

    摘要: A pneumatic tire having a tread reinforcement layer constituted by a steel cord strip layer adjacent the carcass and an aromatic polyamide cord strip layer superposed to the steel cord strip layer in a parallel side-by-side relationship. The aromatic polyamide cord strip layer is folded at its both edges toward the center, in such a manner that the folded portions contact the main portion in a parallel side-by-side relationship. The main portion has a width ranging between 100 and 110% of the width of the tread surface, while the width of each folded portion ranges between 27.5 and 35% of the width of main portion. Furthermore, the free edge of each folded portion is located at a distance from the center of the outermost circumferential groove in the tread surface, which distance being between 25 and 75% of the distance between the outermost groove and the adjacent groove.

    摘要翻译: 一种充气轮胎,其具有由与胎体相邻的钢丝帘线带层构成的胎面加强层和与钢帘线带层叠并联的芳香族聚酰胺帘线带条层并列的关系。 芳族聚酰胺帘线带层在其两个边缘朝向中心折叠,使得折叠部分以平行的并排关系接触主体部分。 主要部分的宽度范围在胎面表面的宽度的100%至110%之间,而每个折叠部分的宽度在主要部分的宽度的27.5%至35%之间。 此外,每个折叠部分的自由边缘位于距离胎面表面中的最外周向沟槽的中心一定距离处,该距离在最外槽和相邻槽之间的距离的25%至75%之间。

    Computational method of material constant of composite material and volume fraction of material component in composite material, and recording medium
    10.
    发明授权
    Computational method of material constant of composite material and volume fraction of material component in composite material, and recording medium 有权
    复合材料的材料常数和复合材料中材料成分的体积分数的计算方法和记录介质

    公开(公告)号:US08380776B2

    公开(公告)日:2013-02-19

    申请号:US12396199

    申请日:2009-03-02

    摘要: The overall material constant of a composite material is computed where the composite material includes multiple kinds of material components in a matrix phase, each of the material constants of the material components and the matrix phase being known. First, for the composite material, an equation, having the material constant of a virtual composite material as an unknown, is prepared by defining the virtual composite material in which each of the material components is dispersed in a form of spherical particles in the matrix phase at a known volume fractions. Next, the overall material constant of the virtual composite material is found as the overall material constant of the composite material by solving the equation. In this case, the equation is a recursive equation which is obtained using the self-consistent method. The volume fraction of a material component in the composite material is computed using the equation.

    摘要翻译: 计算复合材料的总材料常数,其中复合材料在基质相中包括多种材料组分,材料组分的材料常数和基质相的每一种都是已知的。 首先,对于复合材料,通过将其中每个材料成分分散成矩阵相中的球形颗粒形式的虚拟复合材料制备具有虚拟复合材料的材料常数为未知的方程式 以已知体积分数计。 接下来,通过求解该方程,找到虚拟复合材料的整体材料常数作为复合材料的整体材料常数。 在这种情况下,方程式是使用自相一致方法获得的递归方程。 使用等式计算复合材料中的材料成分的体积分数。