Forming and mounting of an asymmetric race tire
    1.
    发明授权
    Forming and mounting of an asymmetric race tire 失效
    不对称赛车的形成和安装

    公开(公告)号:US06508284B1

    公开(公告)日:2003-01-21

    申请号:US09674568

    申请日:2000-10-27

    IPC分类号: B60C306

    摘要: The loss of tire contact patch area along the tire's inside shoulder, relative to an oval race course, which occurs during chassis roll and lateral deflection, is reduced by providing an asymmetrical molded tire. The tires are defined by an asymmetrical outer tread profile and the tires are mounted on the rear axle of the race vehicle such that the axially outer portion of the asymmetrical tread region of each tire, relative to the race course, has a greater shoulder drop, wherein the shoulder drop is the difference between the maximum radial diameter of the tread measured on the outer tread contour and the diameter of the tread at the tread edge, than the opposing tire shoulder.

    摘要翻译: 通过提供不对称的模制轮胎来减少在轮胎的内肩部相对于在底盘滚动和横向偏转期间发生的椭圆形赛道的轮胎接触片区域的损失。 轮胎由不对称的外胎面轮廓限定,并且轮胎安装在赛车手的后轴上,使得每个轮胎的不对称胎面区域的轴向外部相对于跑道具有更大的肩部下落, 其中所述肩部下落是在所述外胎面轮廓上测量的所述胎面的最大径向直径与所述胎面边缘处的胎面直径之间的差值,而不是相对的轮胎胎肩。

    Directional tread for a tire
    4.
    发明授权
    Directional tread for a tire 失效
    轮胎定向胎面

    公开(公告)号:US08261790B2

    公开(公告)日:2012-09-11

    申请号:US12193295

    申请日:2008-08-18

    IPC分类号: B60C11/03

    摘要: A tread for a pneumatic tire includes central tread elements and shoulder tread elements having leading and trailing tread edges. A pair of circumferentially continuous grooves, one on each half ol the tread, and a plurality of lateral grooves extending from each tread edge toward the center of the tread are provided. The lateral grooves adjacent the central tread elements are curved in shape extending along a line, the line extends toward the center of the tread to form an apex from the center extending outwardly across the tread pattern changing in an opposite direction at an intersection of the circumferential groove along a second line adjacent the shoulder tread element. Shoulder tread elements are arranged in two rows, one row adjacent each lateral edge, the leading edges of the shoulder tread elements being inclined relative to the direction of rotation of the tire.

    摘要翻译: 用于充气轮胎的胎面包括中心胎面元件和具有前后胎面边缘的胎肩胎面元件。 提供了一对周向连续的凹槽,每一个在胎面上的一半,以及从每个胎面边缘朝向胎面的中心延伸的多个横向槽。 与中心胎面元件相邻的横向沟槽呈沿着一条线延伸的形状,该线条朝向胎面的中心延伸,从中心向外延伸穿过胎面花纹的顶点,该胎面花纹沿圆周方向的交点相反地改变, 凹槽沿邻近胎肩胎面元件的第二线。 肩部胎面元件布置成两排,一排毗邻每个侧边缘,肩部胎面元件的前缘相对于轮胎的旋转方向倾斜。

    Method and apparatus for determining coefficient of friction
    5.
    发明授权
    Method and apparatus for determining coefficient of friction 失效
    用于确定摩擦系数的方法和装置

    公开(公告)号:US07614275B2

    公开(公告)日:2009-11-10

    申请号:US11684217

    申请日:2007-03-09

    IPC分类号: G01N3/56

    CPC分类号: G01N19/02

    摘要: The coefficient of friction of an elastomeric sample can be determined by: (a) providing a friction test machine having a rigid wheel with an outer surface defining a curvilinear friction surface, a sample holder and, a force measurement device; (b) placing the elastomeric sample onto the sample holder; (c) adjusting the elastomeric sample and the curvilinear friction surface into frictional engagement thereby forming a curvilinear deformation in the elastomeric sample; (d) rotating the rigid wheel; and, (e) using the force measurement device to obtain a geometry independent measurement indicative of the coefficient of friction of the elastomeric sample.

    摘要翻译: 弹性体样品的摩擦系数可以通过以下方式来确定:(a)提供具有刚性轮的摩擦试验机,其具有限定曲线摩擦表面的外表面,试样保持器和力测量装置; (b)将弹性体样品放置在样品架上; (c)将弹性体样品和曲线摩擦表面调整为摩擦接合,从而在弹性体样品中形成曲线变形; (d)旋转刚性轮; 和(e)使用力测量装置来获得指示弹性体样品的摩擦系数的几何独立测量。

    DIRECTIONAL TREAD FOR A TIRE
    8.
    发明申请
    DIRECTIONAL TREAD FOR A TIRE 失效
    轮胎方向盘

    公开(公告)号:US20100038002A1

    公开(公告)日:2010-02-18

    申请号:US12193295

    申请日:2008-08-18

    IPC分类号: B60C11/01

    摘要: A pneumatic tire 10 having a radially outer tread 12, the tread 12 having a plurality of tread elements defined by grooves arranged circumferentially and laterally around the tread 12 between a pair of lateral tread edges TE to define a tread pattern. The tread 12 has a plurality of tread elements extending across the width of the tread between the lateral edges including central tread elements 24, 26, 28 and shoulder tread elements 20, 22 having leading 21, 25 and trailing tread edges 23, 27. The shoulder tread elements 20, 22 are arranged in two rows SH1, SH2, one row adjacent each lateral edge TE. At least one row of shoulder elements has the leading edges inclined relative to the direction of rotation of the tire 10 having an axially outward portion of the leading edge entering and exiting a footprint contact patch 100 prior to the axially inner portion of the leading edge of the shoulder tread elements 20, 22. The leading edges 21 of one row SH1 of shoulder elements 20 can be oriented equal but oppositely directed relative to the leading edges 25 of the other row SH2, preferably the leading edge 21, 25 of the shoulder tread elements 20, 22 are inclined greater than 0 degrees, preferably 10 degrees or greater relative to a plane perpendicular to an equatorial centerplane EP of the tire. The pneumatic tire 10 can have a non-directional tread pattern 12 wherein both rows SH1, SH2 of shoulder tread elements 20,22 are directionally oriented in the same direction, most preferably the tread pattern is directional having equal, but oppositely oriented shoulder tread elements. Preferably the leading edges 21, 25 of each shoulder element 20, 22 are equally oriented and the leading edge of each shoulder element is inclined at an angle of 10 degrees or greater relative to a plane perpendicular to an equatorial centerplane EP of the tire.

    摘要翻译: 具有径向外胎面12的充气轮胎10,胎面12具有多个胎面元件,胎面花纹元件由在胎面12周向和横向设置在一对侧向胎面边缘TE之间的沟槽限定,以限定胎面花纹。 胎面12具有多个胎面元件,胎面元件在横向边缘之间延伸,包括中间胎面元件24,26,28和具有前缘21,25和后胎面边缘23,27的胎肩胎面元件20,22之间的胎面宽度。 肩部胎面元件20,22被布置成两排SH1,SH2,每个横向边缘TE邻近一排。 至少一排肩部元件具有相对于轮胎10的旋转方向倾斜的前缘,轮胎10的前缘的轴向内部分在前缘的轴向向内部分进入和离开足迹接触片100之前, 胎肩元件20,22的肩部胎面元件20,22的一排SH1的前缘21可以相对于另一排SH2的前缘25定向为相等但相反的方向,优选地是胎肩胎面元件20,22的前缘21,25。 元件20,22相对于垂直于轮胎的赤道中心平面EP的平面倾斜大于0度,优选为10度或更大。 充气轮胎10可以具有非定向胎面花纹12,其中肩部胎面花纹元件20,22的两排SH1,SH2在相同方向上定向定向,最优选地,胎面花纹是方向的,具有相等但相对定向的胎面胎面元件 。 优选地,每个肩部元件20,22的前缘21,25被均等地定向,并且每个肩部元件的前缘相对于垂直于轮胎的赤道中心平面EP的平面以10度或更大的角度倾斜。