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    Rear tire for bicycle
    6.
    发明专利
    Rear tire for bicycle 审中-公开
    后轮胎

    公开(公告)号：JP2006076520A

    公开(公告)日：2006-03-23

    申请号：JP2004265404

    申请日：2004-09-13

    Applicant: Bridgestone Corp ,  株式会社ブリヂストン

    Inventor： MATSUSHITA NORINAGA

    IPC: B60C11/04 ,  B60C11/03 ,  B60C11/117

    CPC classification number: B60C2200/10

    Abstract: PROBLEM TO BE SOLVED: To provide a rear tire for a bicycle improved in an on-road gripping property, handling performance, and straight-ahead stability, without an off-road gripping property. SOLUTION: On a tread portion 1, a plurality of bending grooves 2 is arranged across a tire equator surface E so as to shift in a tire circumferential direction. A first block land part is divided and formed by a first lug groove 8, a first groove part 11, a second lug groove 9, and a tread grounding end 7, and a second block land part 16 is divided and formed by the first lug groove 8, a second groove part 13, a coupling groove 10, a third groove part 14, the coupling groove 10, a forth groove part 15, the second lug groove 9, and the tread grounding end 7. An outer bending portion 4 is in a range of 10 to 30% of tread width W, and an inner end portion 5 and an outer end portion 6 are in a range of 10 to 17.5% of the tread width W. The minimum distance d between two bending grooves is in a range of 50 to 65% of a tire peripheral direction distance P1 between the first lug groove 8 and the second lug groove 9 which divide and form the first block land part 12. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种改进了在路夹紧性能，处理性能和直线稳定性的自行车后轮，而没有越野夹紧性能。 解决方案：在胎面部1上，沿轮胎赤道面E布置多个弯曲槽2，以便在轮胎周向上移动。 第一花纹块陆部由第一花纹沟8，第一槽部11，第二花纹槽9和胎面接地端7分割形成，第二花纹块陆部16由第一花纹块 槽8，第二槽部13，联接槽10，第三槽部14，联接槽10，第四槽部15，第二横向花纹槽9和胎面接地端7.外侧弯曲部4 在胎面宽度W的10〜30％的范围内，内端部5和外端部6在胎面宽度W的10〜17.5％的范围内。两个弯曲槽之间的最小距离d为 在第一横向花纹槽8和第二花纹块9之间的轮胎周向距离P1的50〜65％的范围，其分割并形成第一花纹块陆部12.版权所有（C）2006，JPO＆NCIPI

    PNEUMATIC TIRE FOR BICYCLE
    8.
    发明专利
    PNEUMATIC TIRE FOR BICYCLE 失效

    公开(公告)号：JPH03231006A

    公开(公告)日：1991-10-15

    申请号：JP2445590

    申请日：1990-02-05

    Applicant: BRIDGESTONE CORP

    Inventor： MATSUSHITA NORINAGA

    IPC: B62K3/00 ,  B60C9/08 ,  B60C15/00 ,  B60C15/06

    Abstract: PURPOSE:To reduce the weight of a tire, to improve cornering characteristics, and to reduce a cost by forming a carcass with one carcass ply formed of cords crossing each other at a specified angle, and setting the height of the edge of a carcass folded part to a specified value. CONSTITUTION:A tire comprises a carcass 2 having two end parts folded in a manner to be wound around respective bead cores 1, a belt 7 disposed on the outer peripheral side of the carcass 2, and a tread part 9 which is disposed on the outer peripheral side of the belt 7 and with which a tread part 8 is formed. In this case, the carcass 2 is formed of one carcass ply 3 formed of cords crossing each other at an angle of 70-85 deg. with a tire equator surface X-X. The height of the edge of the folded part of the carcass 2 is set to H/3 being 1/3 or more of a tire height H. This constitution reduces the weight of a tire, improves cornering characteristics, and reduces a cost.

    Front tire for bicycle
    9.
    发明专利
    Front tire for bicycle 审中-公开
    前轮胎为BICYCLE

    公开(公告)号：JP2006076519A

    公开(公告)日：2006-03-23

    申请号：JP2004265403

    申请日：2004-09-13

    Applicant: Bridgestone Corp ,  株式会社ブリヂストン

    Inventor： MATSUSHITA NORINAGA

    IPC: B60C11/04 ,  B60C11/03 ,  B60C11/117

    CPC classification number: B60C2200/10

    Abstract: PROBLEM TO BE SOLVED: To provide a front tire for a bicycle improved in an on-road gripping property, handling performance, and straight-ahead stability, without an off-road gripping property. SOLUTION: On a tread portion 1, a plurality of bending grooves 2 is arranged across a tire equator surface E so as to shift in a tire circumferential direction. A first block land part is divided and formed by a first lug groove 8, a first groove part 11, a second lug groove 9, and a tread grounding end 7, and a second block land part 16 is divided and formed by the first lug groove 8, a second groove part 13, a coupling groove 10, a third groove part 14, the coupling groove 10, a forth groove part 15, the second lug groove 9, and the tread grounding end 7. An outer bending portion 4 is in a range of 10 to 25% of tread width W, and an inner end portion 5 and an outer end portion 6 are in a range of 5 to 20% of the tread width W. The minimum distance d between two bending grooves is in a range of 30 to 45% of a tire peripheral direction distance P1 between the first lug groove 8 and the second lug groove 9 which divide and form the first block land part 12. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种改善在路上抓地性能，处理性能和直线稳定性的自行车前轮胎，而不会越野抓地性能。 解决方案：在胎面部1上，沿轮胎赤道面E布置多个弯曲槽2，以便在轮胎周向上移动。 第一花纹块陆部由第一花纹沟8，第一槽部11，第二花纹槽9和胎面接地端7分割形成，第二花纹块陆部16由第一花纹块 槽8，第二槽部13，联接槽10，第三槽部14，联接槽10，第四槽部15，第二横向花纹槽9和胎面接地端7.外侧弯曲部4 在胎面宽度W的10〜25％的范围内，内端部5和外端部6在胎面宽度W的5〜20％的范围内。两个弯曲槽之间的最小距离d为 在第一横向花纹槽8和第二花纹块9之间的轮胎周向距离P1的30〜45％的范围，分割并形成第一花纹块陆部12.版权所有（C）2006，JPO＆NCIPI

    PNEUMATIC BIAS TIRE FOR MOTORCYCLE
    10.
    发明专利
    PNEUMATIC BIAS TIRE FOR MOTORCYCLE 失效

    公开(公告)号：JPH11222007A

    公开(公告)日：1999-08-17

    申请号：JP2844498

    申请日：1998-02-10

    Applicant: BRIDGESTONE CORP

    Inventor： MATSUSHITA NORINAGA

    IPC: B60C9/00 ,  B60C9/06 ,  D02G3/48

    Abstract: PROBLEM TO BE SOLVED: To improve road holding and operational stability by achieving reconciliation of conflicting properties of rigidity and flexibility of a tire case. SOLUTION: In a pneumatic bias tire for a motorcycle, cords of a first and second carcass plies 5, 6 in a product tire comprise cords using organic fibers of the initial tensile resistance 18-617 cN/dtex, and the first and second carcass ply cords are inclined in the opposite direction to the tire equator between the ply layers and have angles 20 deg.-40 deg. to the tire equator in the central region of a tire crown. A count in the central region of the tire crown of the first and second carcass ply cords is 30-70/5 cm when measuring in the right angle direction and the difference of the constant-load intermediate elongation is 1.0-10.0%.

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