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    PNEUMATIC TIRE
    1.
    发明公开
    PNEUMATIC TIRE 审中-公开
    LUFTREIFEN

    公开(公告)号：EP1428687A4

    公开(公告)日：2007-08-29

    申请号：EP02765513

    申请日：2002-09-12

    Applicant: BRIDGESTONE CORP

    Inventor： KOHNO YOSHIHIDE ,  KUROKAWA MAKOTO

    IPC: B60C11/00 ,  B60C17/00 ,  B60C9/18 ,  B60C9/22

    CPC classification number: B60C17/0009 ,  B60C9/2009 ,  B60C11/00 ,  Y10T152/10792

    Abstract: It is to provide a pneumatic tire in which a bulk modulus of elasticity of a tread rubber is small and an inverse V-shaped bending in a tread portion is suppressed to effectively prevent separation failure, breakage and the like of a belt layer, which comprises a radial carcass, a belt of two belt layers with a cross cord arrangement reinforcing a tread portion at an outer peripheral side of a crown portion of the radial carcass and a rubber reinforcing layer having a crescent-shaped form at a cross section, wherein the tread rubber forming a ground contact face of the tread is made of rubber having a bulk modulus of elasticity of not more than 4 GPa and an additional belt layer of cords having a cord angle with respect to an equatorial plane of the tire larger than that of cords in each of belt layers is arranged on an outer peripheral side of the belt and a compression rigidity of the additional belt layer in a widthwise direction of the tread is made 2 times or more larger than that of the belt layer.

    Abstract translation: 提供一种充气轮胎，其中，胎面橡胶的体积弹性模量小，并且抑制胎面部中的倒V形弯曲，从而有效地防止带束层的分离失败和断裂等，其包括 径向胎体，具有交叉帘线布置的两个带层的带，所述交叉帘线布置增强了所述子午线胎体的胎冠部分的外周侧的胎面部分和在横截面处具有月牙形形状的橡胶增强层，其中所述 构成胎面的接地面的胎面橡胶由弹性体积弹性模量为4GPa以下的橡胶和相对于轮胎的赤道面的帘线角度比帘线的帘线角度大的附加带束层构成， 每个带层中的帘线被布置在带的外周侧上，并且附加带层在胎面的宽度方向上的压缩刚度被制造成比胎面的宽度大2倍或更多 的带束层。

    5.
    发明专利
    未知

    公开(公告)号：ES2042999T3

    公开(公告)日：1993-12-16

    申请号：ES89302358

    申请日：1989-03-09

    Applicant: BRIDGESTONE CORP

    Inventor： KADOTA KUNINOBU ,  KOHNO YOSHIHIDE ,  KOSEKI HIROYUKI

    IPC: B60C9/20 ,  B29D30/38 ,  B29K21/00 ,  B29K105/10 ,  B29L9/00 ,  B32B5/00 ,  B32B5/08 ,  B60C9/18 ,  B60C9/22 ,  B60C15/06

    Abstract: A strip-like reinforcing laminate has at least two laminated strips each containing wave-like or zigzag reinforcing elements (1, 1 min ) covered with a particular polymer material, wherein each reinforcing element (1) in each of these strips has regions (2, 2 min ) crossing over at least two reinforcing elements (1 min ) included in the adjoining strip, and the reinforcing elements in all of these strips are aligned in the same direction. Further, such a reinforcing laminate is used as a reinforcement in various parts of a pneumatic tire.

    6.
    发明专利
    未知

    公开(公告)号：DE68907088T2

    公开(公告)日：1993-10-28

    申请号：DE68907088

    申请日：1989-03-09

    Applicant: BRIDGESTONE CORP

    Inventor： KADOTA KUNINOBU ,  KOHNO YOSHIHIDE ,  KOSEKI HIROYUKI

    IPC: B60C9/20 ,  B29D30/38 ,  B29K21/00 ,  B29K105/10 ,  B29L9/00 ,  B32B5/00 ,  B32B5/08 ,  B60C9/18 ,  B60C9/22 ,  B60C15/06

    Abstract: A strip-like reinforcing laminate has at least two laminated strips each containing wave-like or zigzag reinforcing elements (1, 1 min ) covered with a particular polymer material, wherein each reinforcing element (1) in each of these strips has regions (2, 2 min ) crossing over at least two reinforcing elements (1 min ) included in the adjoining strip, and the reinforcing elements in all of these strips are aligned in the same direction. Further, such a reinforcing laminate is used as a reinforcement in various parts of a pneumatic tire.

    7.
    发明专利
    未知

    公开(公告)号：DE69002175D1

    公开(公告)日：1993-08-19

    申请号：DE69002175

    申请日：1990-03-14

    Applicant: BRIDGESTONE CORP

    Inventor： OHSAWA YASUO ,  KOHNO YOSHIHIDE ,  KOSEKI HIROYUKI

    IPC: B60C9/18 ,  B60C9/20 ,  B60C9/22

    Abstract: A pneumatic radial tire (1) including a carcass ply (3) having cords (4) embedded therein and arranged perpendicular to the equatorial plane (5) of the tire, and a belt layer (11) including at least one belt ply (12, 13) having cords (16, 17) embedded therein, said cords being disposed radially outside of said carcass, arranged substantially parallel to equatorial plane of the tire and in a wavy or zigzag form, at least those located at widthwise outermost locations in the parallel belt ply satisfying the following expression: d x a/ lambda

    8.
    发明专利
    未知

    公开(公告)号：DE69817425D1

    公开(公告)日：2003-10-02

    申请号：DE69817425

    申请日：1998-03-17

    Applicant: BRIDGESTONE CORP

    Inventor： KOHNO YOSHIHIDE ,  OKAMOTO YOICHI

    IPC: B60C9/18 ,  B60C9/20

    Abstract: A heavy duty pneumatic radial tire comprises a radial carcass extending between a pair of bead cored, and a belt comprised of three rubberized cord layers, among which cord layers an innermost cord layer and a middle cord layer being laminated to form a cross belt layer by crossing cords of these cord layers with each other with respect to a plane including a circumference of the tire, in which an inclination cord angle with respect to said plane in the innermost cord layer and the middle cord layer is within a given range, and cords in an outermost cord layer have a given inclination cord angle as measured from said plane toward a direction of measuring the inclination cord angle of the middle cord layer, and a coating rubber for the outermost cord layer has a given modulus of elasticity.

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