PNEUMATIC TIRE
    1.
    发明申请

    公开(公告)号:US20210260923A1

    公开(公告)日:2021-08-26

    申请号:US17251203

    申请日:2019-06-12

    Inventor: Takayuki KURATA

    Abstract: A pneumatic tire 10 includes a pair of bead cores 12A, a carcass 18, a belt layer, and a reinforcing layer 30. The carcass 18 is formed spanning between the pair of bead cores 12A. The belt layer includes an annular resin main body 12B that is disposed at a tire diameter direction inner side of the carcass 18 and is formed of resin, and reinforcing cords 12A that extend in a tire circumference direction, are arrayed to be spaced apart in a tire width direction, and are embedded in the resin main body 12A. The reinforcing layer 30 is disposed at the tire diameter direction inner side of the belt layer, and includes fiber cords 32 that extend at an angle of at most ±45° relative to the tire width direction.

    TIRE
    2.
    发明申请
    TIRE 有权

    公开(公告)号:US20210260924A1

    公开(公告)日:2021-08-26

    申请号:US17254856

    申请日:2019-06-13

    Inventor: Takayuki KURATA

    Abstract: A tire includes a ring-shaped tire skeleton member and a belt. The belt includes a resin-covered cord formed of a reinforcing cord covered with a covering resin. The resin-covered cord is wound in a helical shape in the tire circumference direction on the outer periphery of the tire skeleton member and is joined to the tire skeleton member. Portions of the resin-covered cord that are adjacent to one another in the tire axis direction are joined to one another. An end portion of the resin-covered cord is joined to a portion of the resin-covered cord that is adjacent to a tire axis direction inner side of the end portion, areas of cross sections in a tire diameter direction of the end portion decrease toward a tip of the resin-covered cord, and the reinforcing cord is exposed at a tapered surface of the end portion.

    RESIN-COVERED CORD AND PNEUMATIC TIRE

    公开(公告)号:US20210229500A1

    公开(公告)日:2021-07-29

    申请号:US16972006

    申请日:2019-06-13

    Inventor: Takayuki KURATA

    Abstract: A resin-covered cord including n number of individual cords, disposed so as to be mutually spaced apart from each other, a covering resin that covers the cords, and an adhesive resin that is disposed between the cords and the covering resin and that has a greater tensile elastic modulus than the covering resin. Equation (1) below is satisfied, in which A is a total value of a width direction dimension of a portion where the cords and the adhesive resin are disposed, and B is a maximum value of a thickness direction dimension. B

    PNEUMATIC TIRE
    4.
    发明申请
    PNEUMATIC TIRE 有权
    气动轮胎

    公开(公告)号:US20150321518A1

    公开(公告)日:2015-11-12

    申请号:US14648563

    申请日:2013-11-28

    Abstract: A pneumatic tire (10) has, in the surface of the tread (11), a central circumferential groove (12) located at the center of the contact patch width and extending circumferentially around the tire, a plurality of longitudinal grooves (13 (13a, 13b)) formed on the axially outside of the central circumferential groove (12), lug grooves (15), and blocks (16 (16a to 16c)) defined by the central circumferential groove (12), the longitudinal grooves (13), and the lug grooves (15). Each of the lug grooves (15) is formed such that its width in the shoulder region is greater than its width in the central region, and the sum of the groove area of the central circumferential groove (12) and the groove area of the longitudinal grooves (13) is smaller than the area of the lug grooves (15). As a result, the pneumatic tire (10) not only secures the wet braking performance and wear resistance performance on paved roads, but also improves the acceleration performance and braking performance and the steering stability performance on snowy roads.

    Abstract translation: 一种充气轮胎(10)在胎面(11)的表面具有位于接触片宽度的中心并沿轮胎周向延伸的中心圆周槽(12),多个纵向槽(13(13a) ,13b)),形成在中心周向槽(12)的轴向外侧,横向槽(15)和由中心周向槽(12)限定的块(16(16a至16c)),纵向槽(13) ,和横向花纹槽(15)。 每个横向花纹沟(15)形成为使得其肩部区域中的宽度大于其在中心区域中的宽度,并且中央圆周凹槽(12)的沟槽面积与纵向 槽(13)小于横向花纹沟(15)的面积。 因此,充气轮胎(10)不仅可以确保铺路的湿式制动性能和耐磨性,而且可以提高雪道上的加速性能,制动性能和操纵稳定性。

    PNEUMATIC TIRE
    5.
    发明申请
    PNEUMATIC TIRE 审中-公开

    公开(公告)号:US20180126792A1

    公开(公告)日:2018-05-10

    申请号:US15577769

    申请日:2016-04-19

    Inventor: Takayuki KURATA

    Abstract: Taking a groove side-wall to a position at ½ a groove depth from a tread face of lug groove as a tread-in side first inclined portion, and taking a groove side-wall from the position at ½ groove depth to a groove bottom as a tread-in side second inclined portion, then the following A1 is set less than the following B1. When viewed in cross-section orthogonal to a length direction of the lug groove: A1 is an area of a region enclosed by an imaginary line passing through an end portion on a tread face side of the tread-in side first inclined portion and perpendicular to the tread face, by an imaginary line passing through an end portion on a groove bottom side of the tread-in side first inclined portion and orthogonal to the imaginary line, and by the tread-in side first inclined portion; and B1 is an area of a region enclosed by an imaginary line passing through an end portion on a tread face side of the tread-in side second inclined portion and perpendicular to the tread face, by an imaginary line passing through the deepest portion of the lug groove and parallel to the tread face, and by the tread-in side second inclined portion.

    TIRE
    6.
    发明申请
    TIRE 审中-公开

    公开(公告)号:US20170120684A1

    公开(公告)日:2017-05-04

    申请号:US15317465

    申请日:2015-05-25

    Abstract: A tire having V-shaped lug grooves displays both improved grip performance on snow and anti-hydroplaning performance. To that end, an absolute value of difference between a lug groove diagonal angle (θLG), which is an angle of diagonal lug grooves (13) in a tread (11) surface with respect to a tire axial direction, and a profile line diagonal angle (θFP), which is an angle of a normal line of a leading-end profile line of a contact patch shape of the tire (10) with respect to the tire axial direction, is set to 0° or more and 60° or less at respective positions in the tire axial direction. And diagonal lug grooves (13) are formed such that absolute values of difference in a center portion, which is defined to be 20% in width of a contact patch width (W) with an equatorial plane at a center, and an intermediate portion, which is defined to be 20% of the contact patch width (W) on each axially outer side adjacent to the center portion, are larger than an absolute value of difference in a shoulder portion, which is defined to be 20% of the contact patch width (W) on each axially outer side adjacent to the intermediate portion.

    RUN-FLAT TIRE
    7.
    发明申请

    公开(公告)号:US20220144017A1

    公开(公告)日:2022-05-12

    申请号:US17434252

    申请日:2020-02-27

    Inventor: Takayuki KURATA

    Abstract: The run flat tire includes a tread portion in contact with a road surface, a tire side portion continuous to the tread portion and positioned inside in the radial direction of the tread portion, and a carcass forming a tire skeleton. The run flat tire is provided with a side reinforcing rubber in tire side portion. A carcass reinforcing belt formed by covering a circumferential direction cord extending along tire circumferential direction with a rubber material and a sheet-like reinforcing layer formed of a resin material are provided in layers on an inner side of the tire radial direction of the tread portion.

    TIRE
    8.
    发明申请
    TIRE 有权

    公开(公告)号:US20220001704A1

    公开(公告)日:2022-01-06

    申请号:US17289025

    申请日:2019-10-31

    Abstract: The bead portion of the tire has an inner bead provided inside the tire width direction of a carcass ply and an outer bead provided outside the tire width direction of the carcass ply. The inner bead and the outer bead have a bead core portion including a bead cord formed of a metal material, and a filler portion provided outside the tire radial direction of the bead core portion and formed of a resin material. The inner bead and the outer bead sandwich a carcass ply.

    PNEUMATIC TIRE
    10.
    发明申请
    PNEUMATIC TIRE 审中-公开
    气动轮胎

    公开(公告)号:US20150298506A1

    公开(公告)日:2015-10-22

    申请号:US14648304

    申请日:2013-11-28

    Abstract: A pneumatic tire (10), which has, in the surface of the tread (11), lug grooves (15) on one side extending from one axial edge towards the axial center of the tire in such a manner as to intersect with the circumferential direction of the tire and lug grooves (15) on the other side extending in a symmetrically opposite direction from the axial center towards the other axial edge of the tire, has at least one circumferential groove (12) extending circumferentially around the tire. Also, circumferential grooves (12, 13a, 13b) are so formed as to satisfy a relationship of “1≦(S/L)≦3” where L is the axial length of the central region, which is the region enclosed by two straight parallel lines each passing through the center between the contact width center (CL) and the contact edge with the shoulder regions being the regions axially outside of the parallel lines, and S is the total of the groove areas of the circumferential grooves (12, 13a, 13b) disposed in the central region. Therefore, the pneumatic tire (10) not only secures the steering stability performance on wet road surfaces, but also improves the steering stability and wear resistance performance on dry road surfaces.

    Abstract translation: 一种充气轮胎(10),其在所述胎面(11)的表面具有从一个轴向边缘朝向所述轮胎的轴向中心延伸的一侧的横向槽(15),以与所述周向 在轮胎的轴向中心朝向轮胎的另一个轴向边缘的对称相反方向延伸的另一侧的轮胎和横向花纹槽(15)的方向具有沿轮胎周向延伸的至少一个周向槽(12)。 此外,周向槽(12,13a,13b)形成为满足“1≦̸(S / L)≦̸ 3”的关系,其中L是中心区域的轴向长度,其是由两个 每个穿过接触宽度中心(CL)和与胎肩区域的接触边缘之间的中心的平行线是位于平行线的轴向外侧的区域,S是周向槽(12, 13a,13b)。 因此,充气轮胎(10)不仅可以确保湿路面的操纵稳定性,而且可以提高干路面上的操纵稳定性和耐磨性能。

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