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公开(公告)号：US20190176525A1
公开(公告)日：2019-06-13
申请号：US16190192
申请日：2018-11-14
发明人： Mamoru NAKAGAWA
摘要： A tire (1) for a motorcycle comprises a tread portion (2) comprising main grooves (3) and narrow grooves (4). The main grooves (3) include first main grooves (5) and second main grooves (6) arranged on an axially outer side of the first main grooves (5). The narrow grooves (4) include open narrow grooves (7) and semi-open narrow grooves (8). Each of the open narrow grooves (7) is arranged such that one end (7a) is substantially connected with respective first main groove (5) and the other end (7b) is substantially connected with respective second main grooves (6). A first end (8a) of each of the semi-open narrow grooves (8) is substantially connected with one of the first main grooves (5) or the second main grooves (6). A second end (8b) of each of the semi-open narrow grooves (8) terminates on a ground contacting surface (2a) of the tread portion (2).
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公开(公告)号：US20230302852A1
公开(公告)日：2023-09-28
申请号：US18104943
申请日：2023-02-02
发明人： Mamoru NAKAGAWA
IPC分类号： B60C9/22
CPC分类号： B60C9/2204 , B60C2009/2252 , B60C2200/10
摘要： A motorcycle tire includes a tread portion, sidewall portions, bead portions each with a bead core therein, a carcass, and a tread reinforcing layer arranged radially outwardly of the carcass and includes a belt layer and a band layer. The belt layer includes an inner belt ply and an outer belt ply. The band layer includes a band ply arranged between the inner and outer belt plies. The inner belt ply includes belt cords oriented at an angle greater than 5 degrees to the tire circumferential direction and a first development width. The outer belt ply includes belt cords oriented at an angle greater than 5 degrees to the tire circumferential direction and a second development width. The band ply includes band cords oriented at an angle not more than 5 degrees to the tire circumferential direction. The second development width is greater than the first development width.
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公开(公告)号：US20150083294A1
公开(公告)日：2015-03-26
申请号：US14477203
申请日：2014-09-04
发明人： Mamoru NAKAGAWA
IPC分类号： B60C11/03
CPC分类号： B60C11/0306 , B60C11/0302 , B60C2011/0358 , B60C2011/0374 , B60C2011/0381 , B60C2200/10
摘要： A motorcycle tire including a tire structure having a tread having outer surface curved in arc shape such that the outer surface is protruding toward radially outer side of the structure. The tread includes a center region and shoulder regions on sides of the center region, respectively, the center region is spanning 30% of a developed tread width with tire equator at the center of the center region, the tread has main grooves positioned at interval in tire circumferential direction and shoulder sub-grooves positioned in each shoulder region, each main groove is formed in V shape such that the V shape has a pair of inclined portions respectively extending from the tip in the center region toward the shoulder regions in tire rotation direction, and the sub-grooves are formed such that each sub-groove is extending in the circumferential direction and connected to one inclined portion without connecting adjacent main grooves.
摘要翻译： 一种摩托车轮胎，其具有轮胎结构，所述轮胎结构具有外表面弯曲成圆弧状的胎面，使得所述外表面朝向所述结构的径向外侧突出。 胎面分别在中心区域的侧面包括中心区域和肩部区域，中心区域跨越胎面宽度的30％，轮胎赤道位于中心区域的中央，胎面具有间隔开的主槽 轮胎圆周方向和肩部子槽位于每个肩部区域中，每个主槽形成为V形，使得V形具有一对倾斜部分，其分别在轮胎旋转方向上从中心区域的尖端朝着胎肩区域延伸 并且子槽形成为使得每个子槽在圆周方向上延伸并且连接到一个倾斜部分而不连接相邻的主槽。
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