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    • 4. 发明申请
    • PNEUMATIC RADIAL TIRE FOR HEAVY LOAD
    • 用于重载的气动径向轮胎
    • US20090277556A1
    • 2009-11-12
    • US12306771
    • 2007-06-28
    • Masanori Aoyama
    • Masanori Aoyama
    • B60C9/18B60C9/20B60C9/00
    • B60C9/28B60C9/0007B60C9/2006B60C2009/2077B60C2200/06B60C2200/065D07B1/0613D07B2201/102D07B2201/1044Y10T152/10765
    • There are provided a pneumatic radial tire of heavy load vehicles, in which durability of a belt is improved.A pneumatic radial tire for heavy load vehicles comprises a pair of bead portions in each of which a bead core is embedded, a radial carcass ply 1 extending from one bead portion to the other bead portion and turned around the bead core from an inner side to an outer side of the bead core in a width direction of the tire and at least six belt layers 2 disposed on an outer side of this radial carcass ply 1 in a radial direction of the tire, wherein the following relations are satisfied: W56>W34>W12, where W12 is a maximum width of first and second belts 2a f the belt layers 2, W34 is a maximum width of third and forth belts 2b of the belt layers 2 and W56 is a maximum width of fifth and sixth belts 2c of the belt layers 2; and 1>D12/D34>0.6, where D12 is a cord diameter of the first and second belts and D34 is a cord diameter of the third and forth belts. In addition, a steel cord of each belt layer has a double twist structure in which a plurality of steel filaments are twisted to form a cable and two to ten cables are further twisted.
    • 提供了一种重载车辆的充气子午线轮胎,其中带的耐久性得到改善。 一种用于重载车辆的充气子午线轮胎包括一对胎圈部分,每个胎圈部分包括胎圈芯,径向胎体帘布层1,其从一个胎圈部分延伸到另一个胎圈部分,并从胎圈芯的内侧转向 胎圈芯的轮胎的宽度方向的外侧和沿轮胎的径向布置在该径向胎体帘布层1的外侧的至少六个带束层2,其中满足以下关系:W56> W34 W12,其中W12是带束层2的第一和第二带2a的最大宽度,W34是带束层2和W56的第三和第二带2b的最大宽度,是带束层2和W56的第五和第六带2c的最大宽度 带束层2; 和1> D12 / D34> 0.6,其中D12是第一和第二带的帘线直径,D34是第三和第四带的帘线直径。 此外,每个带束层的钢丝帘线具有双捻结构,其中多根钢丝被扭曲以形成电缆,并且两至十根电缆进一步扭曲。
    • 6. 发明授权
    • Pneumatic radial tire for heavy load
    • 气动子午线轮胎用于重载
    • US08261795B2
    • 2012-09-11
    • US12306771
    • 2007-06-28
    • Masanori Aoyama
    • Masanori Aoyama
    • B60C9/18
    • B60C9/28B60C9/0007B60C9/2006B60C2009/2077B60C2200/06B60C2200/065D07B1/0613D07B2201/102D07B2201/1044Y10T152/10765
    • There are provided a pneumatic radial tire of heavy load vehicles, in which durability of a belt is improved.A pneumatic radial tire for heavy load vehicles comprises a pair of bead portions in each of which a bead core is embedded, a radial carcass ply 1 extending from one bead portion to the other bead portion and turned around the bead core from an inner side to an outer side of the bead core in a width direction of the tire and at least six belt layers 2 disposed on an outer side of this radial carcass ply 1 in a radial direction of the tire, wherein the following relations are satisfied: W56>W34>W12, where W12 is a maximum width of first and second belts 2a f the belt layers 2, W34 is a maximum width of third and forth belts 2b of the belt layers 2 and W56 is a maximum width of fifth and sixth belts 2c of the belt layers 2; and 1>D12/D34>0.6, where D12 is a cord diameter of the first and second belts and D34 is a cord diameter of the third and forth belts. In addition, a steel cord of each belt layer has a double twist structure in which a plurality of steel filaments are twisted to form a cable and two to ten cables are further twisted.
    • 提供了一种重载车辆的充气子午线轮胎,其中带的耐久性得到改善。 一种用于重载车辆的充气子午线轮胎包括一对胎圈部分,每个胎圈部分包括胎圈芯,径向胎体帘布层1,其从一个胎圈部分延伸到另一个胎圈部分,并从胎圈芯的内侧转向 胎圈芯的轮胎的宽度方向的外侧和沿轮胎的径向布置在该径向胎体帘布层1的外侧的至少六个带束层2,其中满足以下关系:W56> W34 W12,其中W12是带束层2的第一和第二带2a的最大宽度,W34是带束层2和W56的第三和第二带2b的最大宽度,是带束层2和W56的第五和第六带2c的最大宽度 带束层2; 和1> D12 / D34> 0.6,其中D12是第一和第二带的帘线直径,D34是第三和第四带的帘线直径。 此外,每个带束层的钢丝帘线具有双捻结构,其中多根钢丝被扭曲以形成电缆,并且两至十根电缆进一步扭曲。