MOTORCYCLE TIRE
    26.
    发明公开
    MOTORCYCLE TIRE 审中-公开

    公开(公告)号:EP4400330A1

    公开(公告)日:2024-07-17

    申请号:EP23209301.3

    申请日:2023-11-13

    发明人: SHIBAMOTO, Shohei

    摘要: A motorcycle tire 1 comprises a tread portion 2 provided with a belt layer 7 and a radially outer band layer 8. The belt layer 7 comprises a first belt ply 11 on a carcass 6 and a second belt ply 12 thereon. The band layer is made of a spirally wound band cord and has a developed width smaller than that of the belt layer. In a meridian cross-section of the tire mounted on a standard wheel rim at an internal pressure of 10 kPa: the radius of curvature Rc of the ground contacting surface of the tire in its crown region is less than 95% of the cross-sectional width of the tire; and the radius of curvature Rc is smaller than a radius of curvature Rb of the ground contacting surface in shoulder regions.

    TIRE MANAGEMENT DEVICE, TIRE MANAGEMENT PROGRAM, AND TIRE MANAGEMENT METHOD

    公开(公告)号:EP4393728A1

    公开(公告)日:2024-07-03

    申请号:EP22861189.3

    申请日:2022-08-16

    IPC分类号: B60C19/00 B60C11/24 B60C23/04

    CPC分类号: B60C19/00 B60C23/04 B60C11/24

    摘要: A tire management device includes: a data acquiring unit 102 that acquires data D1 indicating a worn state of each tire 10 mounted on a mobile object M1 including an aircraft or a vehicle, operation data D2 of the mobile object, and internal pressure time-series data D3 of a tire; a tire change time information calculating unit 103 that calculates tire change time information d1 for responding to a state in which a remaining groove depth of the tire is less than a preset threshold value, based on the data indicating the worn state and the operation data of the mobile object; an internal pressure filling time information calculating unit 104 that calculates internal pressure filling time information d2 for responding to a state in which an internal pressure is less than a predetermined threshold value, based on transition of the internal pressure time-series data; and a maintenance instructing unit 105 that instructs whether to perform maintenance on each tire, based on the calculated tire change time information and the calculated internal pressure filling time information.