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    • 2. 发明专利
    • Tire for two-wheeled vehicle and its manufacturing method
    • 两轮车辆轮胎及其制造方法
    • JP2003071946A
    • 2003-03-12
    • JP2001269842
    • 2001-09-06
    • Bridgestone Corp株式会社ブリヂストン
    • OTSUKA TAKASHI
    • B60C9/18B29D30/16B29D30/18B29D30/70B60C9/20B60C9/26
    • B29D30/70B29D30/3035B29D2030/3092B60C9/263
    • PROBLEM TO BE SOLVED: To provide a tire for two-wheeled vehicle capable of simultaneously improving rectilinear movement stabilizing performance and a cornering performance and to provide a method for manufacturing the same.
      SOLUTION: In a belt layer forming step, a belt strip-like member 35 is wound in a relation of Rss>Rsc, wherein Vc is a circumferential speed of the tire of a core 32, Vb is a feeding speed of the member 35 having belt cords 35A in a tire widthwise direction, Rsc is a ratio of the feeding speed Vs of the member 35 in the tire widthwise direction in a central region of the tire in the widthwise direction to the circumferential speed Vc of the tire of the core 32, and Rss is a ratio of both sides of the tire in the widthwise direction. Thus, an inclining angle θ1 of the cords 35A of the member 35 to the circumferential direction of the tire is decreased, and an inclining angle θ2 at both widthwise sides of the tire is increased.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供能够同时改善直线运动稳定性能和转弯性能的二轮车轮胎,并提供其制造方法。 解决方案:在带束层形成步骤中,以Rss> Rsc的关系缠绕带条状构件35,其中Vc是芯32的轮胎的圆周速度,Vb是构件35的进给速度, 腰带35A在轮胎宽度方向上,Rsc是轮胎宽度方向上的轮胎宽度方向的中心区域中的构件35的进给速度Vs与芯部32的轮胎的圆周速度Vc之比 ,Rss是轮胎的宽度方向的两侧的比例。 因此,构件35的帘线35A与轮胎的周向的倾斜角度θ1减小,轮胎的宽度方向两侧的倾斜角度θ2增加。
    • 9. 发明专利
    • Method and apparatus for supplying band-like rubber member
    • 用于供应带状橡胶构件的方法和装置
    • JP2003062916A
    • 2003-03-05
    • JP2001259015
    • 2001-08-29
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TAKAI YUICHI
    • B29D30/26
    • B29D30/70B29D2030/3092
    • PROBLEM TO BE SOLVED: To provide a method for supplying a band-like rubber member capable of simply winding the band-like rubber member on a molding drum without impairing a function of the member by a compact and low-cost facility having a simple constitution.
      SOLUTION: The method for supplying the band-like rubber member comprises a step of winding a plurality of the band-like rubber members 2 each having a cord of a direction inclined to a longitudinal direction on the molding drum 5. The method further comprises the steps of winding the member 2 from one side of an upper part and a lower part of the drum 5 to be rotated around a horizontal axial center 12 by forwardly rotating the drum 5, and thereafter further winding the rubber 2 from other side of the upper part and the lower part of the drum 5 by reversely rotating the drum 5 so that the member 2 is superposed on the previously wound member 2.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种能够简单地将带状橡胶构件卷绕在成形滚筒上而不损害构件的功能的带状橡胶构件的方法,该构件具有简单的结构的紧凑且低成本的设备 。 解决方案:用于提供带状橡胶构件的方法包括将具有沿纵向方向倾斜的方向的绳索的多个带状橡胶构件2卷绕在成型鼓5上的步骤。该方法还包括 通过使滚筒5向前旋转,使构件2从滚筒5的上部和下部的一侧卷绕成围绕水平轴心12旋转的步骤,然后进一步从上部的另一侧卷绕橡胶2 滚筒5的一部分和下部通过使滚筒5反向旋转,使得构件2叠置在先前缠绕的构件2上。