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公开(公告)号：US20180147892A1
公开(公告)日：2018-05-31
申请号：US15802810
申请日：2017-11-03
发明人： Yohei MAEDA
CPC分类号： B60C11/11 , B60C11/0302 , B60C11/0311 , B60C2011/0313 , B60C2200/14
摘要： A tire for running on rough terrain comprises a tread portion 2 bound with an intended tire rotational direction. The tread portion 2 comprises a row of crown blocks 10 and rows of middle blocks 11. The crown blocks 10 and the middle blocks 11 each has an axially-elongated shape. A crown front edge 15 of each of the crown block 10 comprises a most concave portion 18 positioned at the most toe-side thereof in the tire rotational direction and a pair of inclined edges 20 extending from the most concave portion 18 toward axially both sides thereof and toward the heel-side in the tire rotational direction. The inclined edges 20 are each inclined at an angle from 10 to 45 degrees with respect to the tire axial direction. A middle front edge 21 of each of the middle blocks 11 extends axially outwardly and is inclined to the heel-side.
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公开(公告)号：US20180141388A1
公开(公告)日：2018-05-24
申请号：US15819248
申请日：2017-11-21
发明人： Yohei MAEDA
IPC分类号： B60C11/11
CPC分类号： B60C11/11 , B60C2200/10 , B60C2200/14
摘要： A motorcycle tire is provided in a tread portion 2 with blocks including crown blocks 11 disposed in a tread crown region 3. The crown blocks 11 include first crown blocks 16 on the tire equator C, pairs of second crown blocks 17, and pairs of third crown blocks 18. The minimum axial distance L2 between the ground contacting top surfaces of the paired second crown blocks 17 is smaller than the maximum axial width L1 of the ground contacting top surface of the first crown block 16. The minimum axial distance L3 between the ground contacting top surfaces of the paired third crown blocks 18 is greater than the maximum axial width L1 of the first crown block 16.
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公开(公告)号：US20210197620A1
公开(公告)日：2021-07-01
申请号：US17111951
申请日：2020-12-04
发明人： Yohei MAEDA
摘要： A pneumatic tire has a tread portion provided with shoulder blocks arranged along the tread edges and each having a side surface extending radially inwardly from the tread edge. The side surface includes a first surface section and a second surface section arranged in the tire circumferential direction and protruding outward of the tire than the groove bottom surfaces of the shoulder lateral grooves. In a tire meridian section including the first surface section, the profile line of the first surface section extends from the tread edge to a position corresponding to a position of the radial inner ends of the shoulder lateral grooves. In a tire meridian section including the second surface section, the profile line of the second surface section extends from the tread edge to a position corresponding to the above-said position of the radial inner ends through a path inward of the tire than that of the profile line of the first surface section.
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公开(公告)号：US20190225024A1
公开(公告)日：2019-07-25
申请号：US16237904
申请日：2019-01-02
发明人： Hiroshi JO , Yohei MAEDA
IPC分类号： B60C11/03
摘要： A tyre 1 for a motorcycle comprises a tread portion 2 and a pair of sidewall portions 3 connected with both ends of the tread portion 2 and extending inwardly in a tyre radial direction. A connecting portion 9 of the tread portion 2 and at least one of the pair of the sidewall portions 3 is provided with a plurality of protruding portions 10 each protruding outwardly in a tyre axial direction. The plurality of the protruding portions 10 is arranged in a tyre circumferential direction with a space 11 between each other.
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公开(公告)号：US20210170799A1
公开(公告)日：2021-06-10
申请号：US17180148
申请日：2021-02-19
发明人： Yohei MAEDA
摘要： A tire for running on rough terrain comprises a tread portion bound with an intended tire rotational direction. The tread portion comprises a row of crown blocks and rows of middle blocks. The crown blocks and the middle blocks each has an axially-elongated shape. A crown front edge of each of the crown blocks comprises a most concave portion positioned at the most toe-side thereof in the tire rotational direction and a pair of inclined edges extending from the most concave portion toward axially both sides thereof and toward the heel-side in the tire rotational direction. The inclined edges are each inclined at an angle from 10 to 45 degrees with respect to the tire axial direction. A middle front edge of each of the middle blocks extends axially outwardly and linearly over its entire length and is inclined to the heel-side.
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公开(公告)号：US20190255886A1
公开(公告)日：2019-08-22
申请号：US16267605
申请日：2019-02-05
发明人： Yohei MAEDA
摘要： A cord of a band of a tire has a single-stranded structure in which steel filaments are stranded, and the number of the filaments is not less than three and not greater than six. In a cross-section of the cord, when φ represents a diameter of a smallest circle that surrounds cross-sections of the filaments, and ψ represents a diameter of each filament, a gap is formed between the filaments such that the diameter φ is not less than three times the diameter ψ and not greater than six times the diameter ψ in the case of the number of the filaments being three or four. An initial elongation of the cord is not less than 0.1% and not greater than 1.5%.
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公开(公告)号：US20140209227A1
公开(公告)日：2014-07-31
申请号：US14137584
申请日：2013-12-20
发明人： Yohei MAEDA
CPC分类号： B60C11/11 , B60C11/0332 , B60C11/1369 , B60C2200/10 , B60C2200/14
摘要： A motorcycle tire having a block pattern suitable for running on rough terrain is disclosed. Each middle block overlaps with one of crown blocks at least partially in the tire circumferential direction. The top face of each crown block has an axially long rectangular shape. The top face of each middle block has a substantially pentagonal shape having five sides which are an axially inner side extending in the tire circumferential direction, a pair of transverse sides inclined so that the circumferential distance therebetween is gradually increased, and a pair of axially outer sides inclined so that the circumferential distance therebetween is gradually decreased. In a ground contacting patch of the tire in its normally inflated loaded condition and at the camber angle of zero, only an axially inner part of the top face of each middle block contacts with the ground.
摘要翻译： 公开了一种具有适于在崎岖地形上行驶的块状图案的摩托车轮胎。 每个中间块至少部分地在轮胎周向上与冠块之一重叠。 每个冠块的顶面具有轴向长的矩形形状。 每个中间块的顶面具有基本上五边形，其具有沿轮胎周向延伸的轴向内侧的五个侧面，一对横向侧倾斜，使得它们之间的周向距离逐渐增加，并且一对轴向外侧 侧面倾斜，使得它们之间的圆周距离逐渐减小。 在轮胎处于正常充气状态和外倾角为零的地面接触片中，只有每个中间块的顶面的轴向内部与地面接触。
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