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2. 发明申请

US20110240198A1 PNEUMATIC TIRE 审中-公开
标题翻译：气动轮胎
公开(公告)号：US20110240198A1
公开(公告)日：2011-10-06
申请号：US13139540
申请日：2009-12-15
申请人： Yasutaka Suda , Hiroshi Nakata , Yusuko Yoshikawa , Takashi Ono , Makoto Tsuruta
发明人： Yasutaka Suda , Hiroshi Nakata , Yusuko Yoshikawa , Takashi Ono , Makoto Tsuruta
IPC分类号： B60C9/18
CPC分类号： B60C9/28 , B60C9/2006 , Y10T152/10765
摘要： An object of the present invention is to provide a pneumatic tire capable of reducing rolling resistance, while maintaining good durability of a belt. Specifically, the present invention provides a pneumatic tire 1 having: at least one circumferential belt layer 20 constituted of a rubber-coated layer of winding cords 20a extending in the circumferential direction; an intersecting belt layer 30 constituted of an inner belt layer 31 and at least one outer belt layer 32 disposed on the inner belt layer, the inner belt layer and the outer belt layer being each formed by a rubber-coated layer of cords (not shown) extending at a predetermined inclination angle with respect to the tire circumferential direction, the inner belt layer and the outer belt layer(s) being disposed so as to intersect each other; and a tread rubber 40, the circumferential belt layer 20, the intersecting belt layer 30 and the tread rubber 40 being provided in this order on the outer side in the tire radial direction of a crown portion of a carcass 10 extending in a toroidal shape, wherein at least one of the inner belt layer 31 and the outer belt layer 32 constituting the intersecting belt layer 30 (the inner belt layer 31 in FIG. 1) is a broad-width belt layer of which width W1 is larger than the width W3 of the circumferential belt 20; and a low-heat generating rubber portion 50 of which hysteresis loss is less than 0.2 is provided between an end portion of the circumferential belt 20 and the carcass 10.
摘要翻译：本发明的目的是提供一种能够在保持良好的带的耐久性的同时降低滚动阻力的充气轮胎。具体而言，本发明提供一种充气轮胎1，其具有：沿周向延伸的卷绕帘线20a的橡胶涂层构成的至少一个周向带束层20，由内带层31和设置在内带层上的至少一个外带层32构成的相交带层30，内带层和外带层均由橡胶涂层层（未示出）形成），相对于轮胎周向以预定的倾斜角度延伸，所述内侧带束层和所述外侧带束层被设置为彼此相交; 并且胎圈橡胶40，周向带束层20，交叉带束层30和胎面橡胶40按照环状形状的胎体10的胎冠部的轮胎径向外侧依次设置，构成交叉带束层30（图1的内侧带束层31）的内侧带束层31和外部带束层32中的至少一方宽度宽度宽度宽度宽度W1 的圆周带20; 并且在周向带20的端部与胎体10之间设置有滞后损耗小于0.2的低发热橡胶部50。

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