公开(公告)号：US20050257870A1

公开(公告)日：2005-11-24

申请号：US10526068

申请日：2003-09-01

申请人： Yasuo Ohsawa ,  Takafumi sawada ,  Takanari Saguchi ,  Kazuto Fujita ,  Arata Tomita

发明人： Yasuo Ohsawa ,  Takafumi sawada ,  Takanari Saguchi ,  Kazuto Fujita ,  Arata Tomita

IPC分类号： B60C11/01 ,  B60C11/03 ,  B60C11/04 ,  B60C11/13 ,  B60C11/12 ,  B60C3/06 ,  B60C17/00 ,  B60C111/00

CPC分类号： B60C11/01 ,  B60C11/0302 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/032 ,  B60C11/033 ,  B60C11/1218 ,  B60C11/124 ,  B60C11/13 ,  B60C11/1384 ,  B60C2011/0388

摘要： The reduction of noise in the rotation of the tire and the improvement of resistance to hydroplaning are established and also the resistance to uneven wear is improved, in which four circumferential main grooves 2-5 are formed asymmetrically, and a sum of groove volume in a circumferential direction in lateral grooves formed in a shoulder land part row 7 as a portion of an axially inner side per unit width is made smaller than a sum of groove volume in the circumferential direction in lateral grooves 11 formed in a shoulder land part row 9 as a portion of an axially outer side and a land part row 6 in a central region is rendered into a rib, and slant grooves 13 extending at an average inclination angle of not less than 45° with respect to a widthwise direction of the tread are arranged in a second inner land part row 8 located at a side of an equatorial line adjacent to the shoulder land part row 7 at the axially inner side and these slant grooves 13 are opened to the circumferential main groove located adjacent to the second inner land part row 8 of the axially inner side.

摘要翻译： 建立了轮胎旋转中的噪声降低和滑移阻力的提高，并且改善了不均匀磨损的阻力，其中四个周向主槽2-5形成为不对称，并且槽体积在 形成在作为每单位宽度的轴向内侧的一部分的台肩部分列7的横向槽中的周向方向小于形成在台肩部分行9中的横向槽11中的圆周方向上的槽体积的总和， 将中心区域的轴向外侧部分和台肩部分列6的一部分变成肋状物，并且布置有相对于胎面的宽度方向以不小于45°的平均倾斜角度延伸的倾斜槽13 在第二内陆部分行8中，位于与轴肩内侧相邻的胎肩陆地部分列7的赤道线的一侧，并且这些倾斜槽13向周向开口 所述主槽与所述轴向内侧的第二内陆部排8相邻。

公开(公告)号：US20050247388A1

公开(公告)日：2005-11-10

申请号：US10526084

申请日：2003-09-01

申请人： Yasuo Ohsawa ,  Takafumi Sawada ,  Takanari Saguchi ,  Kazuto Fujita ,  Arata Tomita

发明人： Yasuo Ohsawa ,  Takafumi Sawada ,  Takanari Saguchi ,  Kazuto Fujita ,  Arata Tomita

IPC分类号： B60C11/01 ,  B60C11/03 ,  B60C11/04 ,  B60C19/00 ,  B60C11/117 ,  B60C111/00 ,  G01M17/02

CPC分类号： B60C11/0083 ,  B60C11/01 ,  B60C11/0302 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/032 ,  B60C11/033 ,  B60C11/0332 ,  B60C11/1218 ,  B60C11/124 ,  B60C19/001 ,  B60C2011/0388 ,  Y10T29/49494

摘要： This invention relates to a tire suitable in a passenger car, particularly a tire being high in the resistance to hydroplaning on a wet road surface and low in the tire noise and having an asymmetric tread pattern. In such a tread pattern that at least two circumferential grooves extending along an equatorial plane of the tire are formed in a region of a tread surface at an axially inner side with respect to the equatorial plane in the mounting on the vehicle and at least one circumferential groove is formed in a region at an axially outer side thereof, a circumferential groove nearest to the equatorial plane of the tire among the circumferential grooves arranged in the axially inner side region has a width wider by 20% or more than an average groove width of the tire and a circumferential groove arranged toward a side of a tread end at the axially inner side region has a width corresponding to 90-110% of the average groove width, and the circumferential groove nearest to the equatorial plane of the tire at the axially outer side region has a width narrower by 10% or more than the average groove width, whereby the resistance to hydroplaning and the controllability of tire noise, which have a conflicting relation in the prior art, are established in a higher level.

摘要翻译： 本发明涉及一种适用于乘用车的轮胎，特别是轮胎在湿路面上的抗滑动性高，轮胎噪音低，具有不对称的胎面花纹。 在这样的胎面花纹中，沿着轮胎的赤道平面延伸的至少两个圆周槽形成在相对于车辆上的安装件中的赤道平面的轴向内侧的胎面表面的区域中，并且至少一个周向 在其轴向外侧的区域形成有槽，在布置在轴向内侧区域的周向沟槽中，最靠近轮胎的赤道面的周向槽宽度比宽度宽20％以上 所述轮胎和沿所述轴向内侧区域的胎面端侧配置的周向槽宽度对应于所述平均槽宽度的90〜110％，并且所述周向槽最靠近所述轮胎的赤道面在轴向 外侧区域的宽度窄于平均槽宽度的10％以上，由此具有防滑性和轮胎噪声的可控性，其具有conf 在现有技术中的许可关系建立在更高的层次上。

公开(公告)号：US06834695B2

公开(公告)日：2004-12-28

申请号：US09851958

申请日：2001-05-10

申请人： Arata Tomita

发明人： Arata Tomita

IPC分类号： B60C1112

CPC分类号： B60C11/0332 ,  B60C11/00 ,  B60C11/01 ,  B60C11/11 ,  B60C11/12 ,  B60C2011/1254 ,  Y10S152/03 ,  Y10S152/904

摘要： A pneumatic tire in which a sipe, which is substantially parallel to a contour line of a trailing edge of a ground-contact configuration, is formed in a trailing edge region of each block at shoulder sides of the pneumatic tire. From a time of step-in to a time of kick-out of a block, the effect of shearing strain which is transmitted to a trailing edge from a preceding trailing edge portion is mitigated, and movement of the trailing edge of the block with respect to a road surface is suppressed. Accordingly, wear at the trailing edge of the block, i.e., heel-and-toe wear, is suppressed, and noise caused by heel-and-toe wear is reduced.

摘要翻译： 一种充气轮胎，其中，在充气轮胎的胎肩侧的每个块的后缘区域中形成有基本上平行于接地构造的后缘的轮廓线的刀槽花纹。 从踏入的时间到踢出块的时间，减轻了从前一后缘部分传递到后缘的剪切应变的影响，并且块的后缘相对于 到路面被抑制。 因此，阻止了块的后缘处的磨损，即脚跟和趾部磨损，并且由脚跟和趾部磨损引起的噪音降低。

公开(公告)号：US20070017618A1

公开(公告)日：2007-01-25

申请号：US11491095

申请日：2006-07-24

申请人： Atsushi Miyasaka ,  Arata Tomita ,  Yasuo Osawa

发明人： Atsushi Miyasaka ,  Arata Tomita ,  Yasuo Osawa

IPC分类号： B60C11/03

CPC分类号： B60C11/0302 ,  B60C11/0304 ,  B60C11/12 ,  B60C11/13 ,  B60C2011/0374 ,  B60C2011/0388 ,  Y10S152/03

摘要： A pneumatic tire has a tread pattern wherein a circumferential groove continuously extending in a circumferential direction is formed in at least a first half part of a treading face within a range of 10-30% of a treading face width from an end of the treading face and a plurality of curvedly slant grooves extending from the circumferential groove toward a side of a central part of the treading face so as to make an angle at an acute angle side with respect to the circumferential direction gradually small away from the circumferential groove are arranged at intervals in the circumferential direction, in which a land row consisting of tapered land portions defined between the circumferentially adjoining curvedly slant grooves and having a width gradually decreased toward the side of the central part of the treading face is formed in the treading face, and sipes linearly extending at two large and small inclination angles with respect to the circumferential direction without crossing with each other are alternately arranged in the circumferential direction, and first type of the sipes has an angle at the acute angle side with respect to the circumferential direction of 75-90° and second type of the sipes has an angle at the acute angle side of 30-60°.

摘要翻译： 充气轮胎具有胎面花纹，其中，在踩踏面的至少前后半部分中，在从踩踏面的端部的踩踏面宽度的10〜30％的范围内形成有沿圆周方向连续延伸的周向槽 并且从周向槽朝向踩踏面的中心部侧的一侧延伸的多个弯曲的倾斜槽相对于从周向槽逐渐变小的圆周方向形成锐角侧的角度 在踩踏面上形成有沿圆周方向的间隔，其中，在行进面上形成有在周向相邻的弯曲倾斜槽之间限定的具有朝向踩踏面的中心部侧的宽度逐渐减小的锥形陆部的陆地行， 相对于圆周方向以两个大的和小的倾斜角度线性地延伸，而没有交叉 h彼此沿圆周方向交替布置，并且第一类型的刀槽花纹相对于圆周方向的锐角侧具有75-90°的角度，并且第二类型的刀槽花纹在锐角侧具有一个角度 30-60°。

公开(公告)号：US07992608B2

公开(公告)日：2011-08-09

申请号：US10577901

申请日：2004-10-28

申请人： Arata Tomita

发明人： Arata Tomita

IPC分类号： B60C11/04 ,  B60C11/13

CPC分类号： B60C11/042 ,  B60C11/0309 ,  B60C11/045 ,  Y10S152/901

摘要： A pneumatic tire where the positions of the groove deepest portions (33btm) in the circumferential grooves (33) vary in a predetermined cycle along the circumferential direction in a width direction of the tread within the circumferential grooves (33). Moreover, depth direction positions, where a groove bottom surface of the circumferential groove (33) contacts with each of perpendicular lines (perpendicular line P1, perpendicular line P2) which are perpendicular or approximately perpendicular to a tread surface and which pass respectively through edges (edge portion 11eg, edge portion 12eg) of the land portions on a side of each of the circumferential grooves of ribs, as well as angles which are formed by the perpendicular lines and a section line of a cross-section of the groove bottom surface in the width direction of the tread surface vary in the predetermined cycle along the circumferential direction. In the pneumatic tire, uneven wear of the tire caused by lateral force applied in a width direction of a tread is suppressed and wet performance is improved.

摘要翻译： 一种充气轮胎，其中，所述周向槽（33）中的所述槽最深部（33btm）的位置沿所述周向槽（33）内的所述胎面的宽度方向的周向沿规定的周期变化。 此外，深度方向位置，其中周向槽（33）的槽底表面与垂直于或大致垂直于胎面表面的每条垂直线（垂直线P1，垂直线P2）接触，并且分别通过边缘 边缘部分11eg，边缘部分12eg），以及由垂直线形成的角以及槽底面的横截面的截面线的角度 胎面表面的宽度方向沿周向沿规定的周期变化。 在充气轮胎中，由于在胎面的宽度方向上施加的横向力引起的轮胎的不均匀磨损被抑制，并且提高了湿润性能。

公开(公告)号：US06283184B1

公开(公告)日：2001-09-04

申请号：US09042642

申请日：1998-03-17

申请人： Arata Tomita

发明人： Arata Tomita

IPC分类号： B60C1112

CPC分类号： B60C11/0332 ,  B60C11/00 ,  B60C11/01 ,  B60C11/11 ,  B60C11/12 ,  B60C2011/1254 ,  Y10S152/03 ,  Y10S152/904

摘要： A pneumatic tire in which a sipe, which is substantially parallel to a contour line of a trailing edge of a ground-contact configuration, is formed in a trailing edge region of each block at shoulder sides of the pneumatic tire. From a time of step-in to a time of kick-out of a block, the effect of shearing strain which is transmitted to a trailing edge from a preceding trailing edge portion is mitigated, and movement of the trailing edge of the block with respect to a road surface is suppressed. Accordingly, wear at the trailing edge of the block, i.e., heel-and-toe wear, is suppressed, and noise caused by heel-and-toe wear is reduced.

摘要翻译： 一种充气轮胎，其中，在充气轮胎的胎肩侧的每个块的后缘区域中形成有基本上平行于接地构造的后缘的轮廓线的刀槽花纹。 从踏入的时间到踢出块的时间，减轻了从前一后缘部分传递到后缘的剪切应变的影响，并且块的后缘相对于 到路面被抑制。 因此，阻止了块的后缘处的磨损，即脚跟和趾部磨损，并且由脚跟和趾部磨损引起的噪音降低。

公开(公告)号：US07762298B2

公开(公告)日：2010-07-27

申请号：US11491095

申请日：2006-07-24

申请人： Atsushi Miyasaka ,  Arata Tomita ,  Yasuo Osawa

发明人： Atsushi Miyasaka ,  Arata Tomita ,  Yasuo Osawa

IPC分类号： B60C11/12

CPC分类号： B60C11/0302 ,  B60C11/0304 ,  B60C11/12 ,  B60C11/13 ,  B60C2011/0374 ,  B60C2011/0388 ,  Y10S152/03

摘要： A pneumatic tire has a tread pattern wherein a circumferential groove continuously extending in a circumferential direction is formed in at least a first half part of a treading face within a range of 10-30% of a treading face width from an end of the treading face and a plurality of curvedly slant grooves extending from the circumferential groove toward a side of a central part of the treading face so as to make an angle at an acute angle side with respect to the circumferential direction gradually small away from the circumferential groove are arranged at intervals in the circumferential direction, in which a land row consisting of tapered land portions defined between the circumferentially adjoining curvedly slant grooves and having a width gradually decreased toward the side of the central part of the treading face is formed in the treading face, and sipes linearly extending at two large and small inclination angles with respect to the circumferential direction without crossing with each other are alternately arranged in the circumferential direction, and first type of the sipes has an angle at the acute angle side with respect to the circumferential direction of 75-90° and second type of the sipes has an angle at the acute angle side of 30-60°.

摘要翻译： 充气轮胎具有胎面花纹，其中，在踩踏面的至少前后半部分中，在从踩踏面的端部的踩踏面宽度的10〜30％的范围内形成有沿圆周方向连续延伸的周向槽 并且从周向槽朝向踩踏面的中心部侧的一侧延伸的多个弯曲的倾斜槽相对于从周向槽逐渐变小的圆周方向形成锐角侧的角度 在踩踏面上形成有沿圆周方向的间隔，其中，在行进面上形成有在周向相邻的弯曲倾斜槽之间限定的具有朝向踩踏面的中心部侧的宽度逐渐减小的锥形陆部的陆地行， 相对于圆周方向以两个大的和小的倾斜角度线性地延伸，而没有交叉 h彼此沿圆周方向交替布置，并且第一类型的刀槽花纹相对于圆周方向的锐角侧具有75-90°的角度，并且第二类型的刀槽花纹在锐角侧具有一个角度 30-60°。

公开(公告)号：US5871598A

公开(公告)日：1999-02-16

申请号：US837454

申请日：1997-04-18

申请人： Arata Tomita

发明人： Arata Tomita

IPC分类号： B60C11/11 ,  B60C11/12

CPC分类号： B60C11/12 ,  B60C11/1281 ,  Y10S152/03 ,  Y10S152/902

摘要： A pneumatic tire having a tread provided with at least one circumferential groove extending substantially parallel with the tire circumferential direction, and inclined grooves arranged at intervals in the circumferential direction of the tire, the inclined grooves being inclined at an angle with respect to the circumferential groove and the axial direction, and blocks formed by the circumferential groove and the inclined grooves and arranged at intervals in the circumferential direction of the tire, the blocks having acute angle corners formed by the circumferential groove and the respective inclined grooves, wherein (a) a sipe is formed near one of the acute angle corners which contacts the ground later in the block during tire rotating, the sipe having an opening at the circumferential groove or at a tread end, and (b) the sipe extends from the opening toward the inside of the block substantially parallel with the inclined groove and terminates in the block. It is thus possible to restrain uneven wear without degrading steering stability in a tire with a pattern of blocks having acute angle corners.

摘要翻译： 一种具有胎面的充气轮胎，所述胎面设置有至少一个与所述轮胎周向大致平行延伸的周向槽，以及沿所述轮胎的周向间隔设置的倾斜槽，所述倾斜槽相对于所述周向槽倾斜一定角度 轴向方向，以及由周向槽和倾斜槽形成的并且沿轮胎的周向间隔设置的块，所述块具有由所述周向槽和各个倾斜槽形成的锐角，其中（a） 在轮胎旋转期间，刀槽花纹在靠近所述块体的所述锐角之一附近形成，所述刀槽花纹在所述周向槽处或胎面端具有开口，并且（b）所述刀槽花纹从所述开口向内延伸 所述块基本上与所述倾斜槽平行并且终止于所述块中。 因此，可以抑制不均匀磨损，而不会降低轮胎中的具有锐角角块的图案的转向稳定性。

公开(公告)号：US20070251622A1

公开(公告)日：2007-11-01

申请号：US10577901

申请日：2004-10-28

申请人： Arata Tomita

发明人： Arata Tomita

IPC分类号： B60C11/13

CPC分类号： B60C11/042 ,  B60C11/0309 ,  B60C11/045 ,  Y10S152/901

摘要： A pneumatic tire where the positions of the groove deepest portions (33btm) in the circumferential grooves (33) vary in a predetermined cycle along the circumferential direction in a width direction of the tread within the circumferential grooves (33). Moreover, depth direction positions, where a groove bottom surface of the circumferential groove (33) contacts with each of perpendicular lines (perpendicular line P1, perpendicular line P2) which are perpendicular or approximately perpendicular to a tread surface and which pass respectively through edges (edge portion 11eg, edge portion 12eg) of the land portions on a side of each of the circumferential grooves of ribs, as well as angles which are formed by the perpendicular lines and a section line of a cross-section of the groove bottom surface in the width direction of the tread surface vary in the predetermined cycle along the circumferential direction. In the pneumatic tire, uneven wear of the tire caused by lateral force applied in a width direction of a tread is suppressed and wet performance is improved.

摘要翻译： 一种充气轮胎，其中，所述周向槽33中的所述槽最深部（33btm）的位置沿所述周向槽（33）内的所述胎面的宽度方向的周向沿规定的周期变化。 此外，周向凹槽（33）的凹槽底表面与每个垂直线（垂直线P 1，垂直线P 2 2）接触的深度方向位置，其中 垂直于或大致垂直于胎面表面，并且分别通过肋条的每个周向槽侧的边缘（边缘部分11例如边缘部分12例如边缘部分12）以及由 在胎面表面的宽度方向上的槽底面的横截面的垂直线和剖面线沿周向沿预定的周期变化。 在充气轮胎中，由于在胎面的宽度方向上施加的横向力引起的轮胎的不均匀磨损被抑制，并且提高了湿润性能。