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    TIRE
    1.
    发明申请
    TIRE 有权

    公开(公告)号：US20210197618A1

    公开(公告)日：2021-07-01

    申请号：US17059213

    申请日：2019-05-15

    Applicant: BRIDGESTONE CORPORATION

    Inventor： Masahiro KATAYAMA ,  Tatsurou UCHIDA ,  Yoshifumi MATSUMOTO ,  Kenji MATSUI

    IPC: B60C5/01 ,  B60C15/02 ,  B60C15/04 ,  B60C1/00

    Abstract: A tire includes a tire frame member that has bead portions in which bead cores are embedded in a resin material and side portions that comprise the resin material and are continuous with tire radial direction outer sides of the bead portions, wherein assuming that T1 is a thickness of thick-walled portions of the tire frame member that are adjacent to the tire radial direction outer sides of the bead cores and that T2 is a thickness of the side portions, T1>T2, a thickness of the tire frame member decreases from T1 to T2 between the thick-walled portions and the side portions, and a position at which the thickness of the tire frame member starts to decrease from T1 to T2 is on a tire radial direction outer side of tire radial direction outer ends of rim flanges of a rim on which the bead portions are mounted.

    PNEUMATIC TIRE
    2.
    发明申请
    PNEUMATIC TIRE 审中-公开

    公开(公告)号：US20200062038A1

    公开(公告)日：2020-02-27

    申请号：US16611811

    申请日：2018-04-24

    Applicant: BRIDGESTONE CORPORATION

    Inventor： Keiichi HASEGAWA ,  Masahiro KATAYAMA ,  Masayuki ARIMA ,  Yoshihide KOUNO

    IPC: B60C9/22 ,  B60C5/14 ,  B60C9/04

    Abstract: A pneumatic tire includes a tire case, a tread and a single-layer belt. The tire case includes a carcass that extends from one bead portion to another bead portion. An outer side portion of the carcass is covered with a side rubber layer formed of a first rubber material. The tread is disposed at the tire radial direction outer side of the tire case and is formed of a second rubber material. The belt is disposed between the tire case and the tread. The belt includes a resin-covered cord that is wound in a spiral shape. The resin-covered includes a cord covered with a resin with a greater tensile modulus of elasticity than the first rubber material and the second rubber material. The resin at one winding and another winding of the resin-covered cord, which are adjacent in the tire width direction, are welded together.

    TIRE
    4.
    发明申请
    TIRE 有权

    公开(公告)号：US20210162812A1

    公开(公告)日：2021-06-03

    申请号：US15735000

    申请日：2019-06-14

    Applicant: BRIDGESTONE CORPORATION

    Inventor： Masahiro KATAYAMA

    IPC: B60C9/22

    Abstract: A belt of a tire is configured with two resin-covered cords that are wound in a spiral pattern onto a carcass ply. Each of the resin-covered cords is configured by covering a reinforcing cord with a covering resin, and has a cross-section profile in a tire axial direction that is trapezoidal shape. The belt is configured by winding one of the resin-covered cords with its upper base side at a tire radial direction outer side, and winding the other of the resin-covered cords with its upper base side at the tire radial direction inner side between portions of the one of the resin-covered cords. Thus, join portions that are inclined toward different sides in the tire axial direction are alternately formed at a tire radial direction inner side along the tire axial direction in the belt.

    RUN-FLAT TIRE
    6.
    发明申请
    RUN-FLAT TIRE 有权

    公开(公告)号：US20220080782A1

    公开(公告)日：2022-03-17

    申请号：US17417973

    申请日：2019-12-13

    Applicant: BRIDGESTONE CORPORATION

    Inventor： Masahiro KATAYAMA

    IPC: B60C17/00 ,  B60C9/22 ,  B60C9/28

    Abstract: A run-flat tire is provided with a belt layer having a circumferential cord extending along the tire circumferential direction covered with a resin material, a first resin reinforcing layer provided on the outside of the belt layer of the tire radial direction and formed of a resin material, and a second resin reinforcing layer provided on the inside of the belt layer of the tire radial direction and formed of a resin material, wherein the first resin reinforcing layer and the second resin reinforcing layer have a predetermined width along the tire width direction and are provided so as to sandwich the tire radial direction outside end of a side reinforcing rubber from the outside of the tire radial direction and the inside of the tire radial direction.

    RUN-FLAT TIRE
    7.
    发明申请
    RUN-FLAT TIRE 有权

    公开(公告)号：US20220088973A1

    公开(公告)日：2022-03-24

    申请号：US17417956

    申请日：2019-12-12

    Applicant: BRIDGESTONE CORPORATION

    Inventor： Masahiro KATAYAMA

    IPC: B60C17/00 ,  B60C9/20 ,  B60C9/22

    Abstract: A run-flat tire has a belt-end reinforcing layer provided between the tread portion and a width outside end of the belt layer, and formed of a resin material. The belt-end reinforcing layer is annular along a tire circumferential direction, has a predetermined width along the tire width direction, and is provided in the tire width direction so as to cover a radial outside end of a side reinforcing rubber and a width outside end of the belt layer.

    TIRE
    8.
    发明申请
    TIRE 有权

    公开(公告)号：US20210162814A1

    公开(公告)日：2021-06-03

    申请号：US15734999

    申请日：2019-06-14

    Applicant: BRIDGESTONE CORPORATION

    Inventor： Masahiro KATAYAMA

    IPC: B60C9/22

    Abstract: A resin-covered cord provided at a tire is configured with plural arrayed reinforcing cords that are covered with a covering resin. A belt is configured with the resin-covered cord that is wound in a spiral pattern, and an array direction of the reinforcing cord is inclined with respect to a tire axial direction. Portions of the resin-covered cord that are adjacent to each other in the tire axial direction are joined together at mutual contact portions (joined portions).

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