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公开(公告)号：US5445203A
公开(公告)日：1995-08-29
申请号：US802518
申请日：1991-12-05
申请人： Kenji Saito , Akira Kajikawa , Akihiro Nakatani , Atsushi Yamahira , Hiroyuki Noma , Kazuhiko Kawamura
发明人： Kenji Saito , Akira Kajikawa , Akihiro Nakatani , Atsushi Yamahira , Hiroyuki Noma , Kazuhiko Kawamura
CPC分类号： B60C3/04 , B60C11/00 , B60C2009/283 , Y10T152/10765 , Y10T152/10801
摘要： A belted radial ply tire which comprises a bead core disposed in each bead portion, a carcass extending between the bead portions and turned up around the bead cores, and a belt comprising at least two cross plies disposed radially outside the carcass and inside the tread, andin a state that the tire is mounted on its regular rim and inflated to its regular inner pressure but loaded with no tire load, the effective belt width BW of the effective belt part BE of the belt, the belt edge camber height CH of the belt, and the tire section width TW satisfy2.50(BW/TW)-1.25
摘要翻译： 一种带状径向帘布层轮胎，其包括设置在每个胎圈部分中的胎圈芯，在胎圈部分之间延伸并围绕胎圈芯部卷起的胎体，以及包括设置在胎体径向外侧和胎面内部的至少两个交叉层的带， 并且在轮胎安装在其规则轮缘上并充气到其规定的内部压力但没有装载轮胎负载的状态下，带的有效带部分BE的有效带宽BW，带的边缘外倾高度CH 皮带，轮胎截面宽度TW满足2.50（BW / TW）-1.25
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2.发明授权
公开(公告)号：US5031680A
公开(公告)日：1991-07-16
申请号：US385146
申请日：1989-07-26
申请人： Akira Kajikawa , Saneto Saito , Kenji Saito
发明人： Akira Kajikawa , Saneto Saito , Kenji Saito
IPC分类号： B60C11/00 , B60C11/04 , B60C11/11 , B60C11/12 , B60C11/13 , B60C11/14 , C08K7/00 , C08L21/00
CPC分类号： B60C11/14 , B60C11/11 , B60C11/13 , B60C11/1376 , B60C2011/133 , Y10S152/902
摘要： A pneumatic tire having tread blocks provided in the side walls with grooves opened at the top of the block, the depth gW of each groove in the axial direction of the tire being in the range of 5 to 50% of the block width BW, the width gL of each groove in the circumferential direction being in the range of 5 to 25% of the block length BL, the height gH of each groove at the block side wall being in the range of 15 to 80% of the depth GH of a main groove dividing the block, whereby performances on the snowy and icy roads and noise generation and wear resistance on the normal roads are well improved in good balance.
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公开(公告)号：US5088321A
公开(公告)日：1992-02-18
申请号：US603561
申请日：1990-10-26
申请人： Akira Kajikawa , Kenji Saito
发明人： Akira Kajikawa , Kenji Saito
CPC分类号： G01M17/027 , G01M17/022
摘要： An apparatus and method in which light from source is kept within a transparent moving roadway and a tire tread is pressed onto one surface of the roadway. The ground contact patch of the tire is observed from the opposite side, and the ground contact area and the non-ground contact area of the tire tread is distinguished clearly. The dynamic behaviour of the ground contact patch of the rotating tire roadway can be observed by means of a camera unit. The information obtained can be utilized for tire design to improve tire performance.
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公开(公告)号：US5360044A
公开(公告)日：1994-11-01
申请号：US78111
申请日：1993-06-18
申请人： Kenji Saito , Akira Kajikawa , Kazuo Asano
发明人： Kenji Saito , Akira Kajikawa , Kazuo Asano
CPC分类号： B60C11/0083 , B60C11/00 , B60C11/0332 , B60C11/11 , B60C11/13 , Y10S152/902
摘要： A pneumatic radial tire has a tread surface extending along a specific curvature plane which includes a first arc with the radius R1 having a center on the tire's equatorial plane and passing through the tire's equatorial point, a second arc with the radius R2 having a center on the tire's equatorial plane and intersecting with the first arc at an intersection distant from the tire's equatorial plane by 0.2 to 0.25 times the tire width SW, and a third arc with the radius R3 passing through a ground contact outer edge point of the ground contact surface, when a standard load is applied, and a belt intermediate height point on the tread surface. In the specific curvature plane, the curvature radius ratio R2/R3 is set in a range from 4 to 12, and the curvature radius ratio R1/R2 is set in a range from 1.2 to less than 1.6 when the aspect ratio H/SW is 0.70 or more. The tread surface is provided with a main circumferential groove, preferably having a groove width of 0.06 to 0.10 times the tire width SW, extending near the intersection of the first arc and the second arc in the tire circumferential direction for dividing the tread surface into the crown part and an outer shoulder part. Narrow lateral grooves crossing the tire circumferential direction divide the crown part and shoulder part into blocks.
摘要翻译： 充气子午线轮胎具有沿着特定曲率平面延伸的胎面表面，该胎面表面包括第一弧，其半径R1在轮胎的赤道平面上具有中心并穿过轮胎的赤道点，半径R2具有中心的第二弧 轮胎的赤道平面，并且在远离轮胎的赤道面的交点处与轮胎宽度SW相差0.2至0.25倍的第一弧线相交，并且具有半径R3的第三弧线穿过接地表面的接地接触外边缘点 当施加标准载荷时，在胎面表面上具有带中间高度点。 在特定的曲率平面中，曲率半径比R2 / R3被设定在4〜12的范围内，当纵横比H / SW为（1/2））时，曲率半径比R1 / R2被设定在1.2以上且小于1.6的范围内 0.70以上。 胎面表面设置有主圆周槽，优选地具有轮胎宽度SW的0.06至0.10倍的槽宽度，在轮胎周向上在第一弧和第二弧的交点附近延伸，以将胎面表面分割成 冠部和外肩部。 穿过轮胎周向的窄横向槽将冠部和肩部分割成块。
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公开(公告)号：US5323826A
公开(公告)日：1994-06-28
申请号：US91058
申请日：1993-07-14
申请人： Kenji Saito , Akira Kajikawa , Kazuo Asano
发明人： Kenji Saito , Akira Kajikawa , Kazuo Asano
CPC分类号： B60C11/00 , B60C11/0083 , B60C11/0332 , B60C11/11 , B60C11/13
摘要： A pneumatic radial tire has a tread surface extending along a specific curvature plane which includes a first arc with the radius R1 having a center on the tire's equatorial plane and passing through the tire's equatorial point, a second arc with the radius R2 having a center on the tire's equatorial plane and intersecting with the first arc at an intersection distant from the tire's equatorial plane by 0.2 to 0.25 times the tire width SW, and a third arc with the radius R3 passing through a ground contact outer edge point of the ground contact surface, when a standard load is applied, and a belt intermediate height point on the tread surface. In the specific curvature plane, the curvature radius ratio R2/R3 is set in a range from 1.2 to less than 1.6 when the aspect ratio H/SW is 0.70 or more. The tread surface is provided with a main circumferential groove, preferably having a groove width of 0.06 to 0.10 times the tire width SW, extending near the intersection of the first arc and the second arc in the tire circumferential direction for dividing the tread surface into the crown part and an outer shoulder part. Narrow lateral grooves crossing the tire circumferential direction divide the crown part and shoulder part into blocks.
摘要翻译： 充气子午线轮胎具有沿着特定曲率平面延伸的胎面表面，该胎面表面包括第一弧，其半径R1在轮胎的赤道平面上具有中心并穿过轮胎的赤道点，半径R2具有中心的第二弧 轮胎的赤道平面，并且在远离轮胎的赤道面的交点处与轮胎宽度SW相距0.2至0.25倍的第一弧线与半径R3穿过地面接触表面的接地接触外边缘点的第三弧线相交， 当施加标准载荷时，在胎面表面上具有带中间高度点。 在特定曲率平面中，当纵横比H / SW为0.70以上时，曲率半径比R2 / R3设定在1.2〜小于1.6的范围内。 胎面表面设置有主圆周槽，优选地具有轮胎宽度SW的0.06至0.10倍的槽宽度，在轮胎周向上在第一弧和第二弧的交点附近延伸，以将胎面表面分割成 冠部和外肩部。 穿过轮胎周向的窄横向槽将冠部和肩部分割成块。
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公开(公告)号：US5309966A
公开(公告)日：1994-05-10
申请号：US91814
申请日：1993-07-24
申请人： Kenji Saito , Akira Kajikawa , Kazuo Asano
发明人： Kenji Saito , Akira Kajikawa , Kazuo Asano
CPC分类号： B60C11/0083 , B60C11/00 , B60C11/0332 , B60C11/11 , B60C11/13
摘要： A pneumatic radial tire has a tread surface extending along a specific curvature plane which includes a first arc with the radius R1 having a center on the tire's equatorial plane and passing through the tire's equatorial point, a second arc with the radius R2 having a center on the tire's equatorial plane and intersecting with the first arc at an intersection distant from the tire's equatorial plane by 0.2 to 0.25 times the tire width SW, and a third arc with the radius R3 passing through a ground contact outer edge point of the ground contact surface, when a standard load is applied, and a belt intermediate height point on the tread surface. In the specific curvature plane, the curvature radius ratio R2/R3 is set in a range from 4 to 12, and the curvature radius ratio R1/R2 is set in a range from 1.6 to less than 2.6 when the aspect ratio H/SW is more than 0.55 and less than 0.70. The tread surface is provided with a main circumferential groove, preferably having a groove width of 0.06 to 0.10 times the tire width SW, extending near the intersection of the first arc and the second arc in the tire circumferential direction for dividing the tread surface into the crown part and an outer shoulder part. Narrow lateral grooves crossing the tire circumferential direction divide the crown part and shoulder part into blocks.
摘要翻译： 充气子午线轮胎具有沿着特定曲率平面延伸的胎面表面，该胎面表面包括第一弧，其半径R1在轮胎的赤道平面上具有中心并穿过轮胎的赤道点，半径R2具有中心的第二弧 轮胎的赤道平面，并且在远离轮胎的赤道面的交点处与轮胎宽度SW相差0.2至0.25倍的第一弧线相交，并且具有半径R3的第三弧线穿过接地表面的接地接触外边缘点 当施加标准载荷时，在胎面表面上具有带中间高度点。 在具体的曲率平面中，曲率半径比R2 / R3设定在4〜12的范围内，当纵横比H / SW为宽度比H / SW时，曲率半径比R1 / R2设定在1.6〜小于2.6的范围内 大于0.55且小于0.70。 胎面表面设置有主圆周槽，优选地具有轮胎宽度SW的0.06至0.10倍的槽宽度，在轮胎周向上在第一弧和第二弧的交点附近延伸，以将胎面表面分割成 冠部和外肩部。 穿过轮胎周向的窄横向槽将冠部和肩部分割成块。
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公开(公告)号：US5299612A
公开(公告)日：1994-04-05
申请号：US982501
申请日：1992-11-27
申请人： Kenji Saito , Akira Kajikawa , Kazuo Asano
发明人： Kenji Saito , Akira Kajikawa , Kazuo Asano
CPC分类号： B60C11/0083 , B60C11/00 , B60C11/0332 , B60C11/11 , B60C11/13
摘要： A pneumatic radial tire has a tread surface extending along a specific curvature plane which includes a first arc with the radius R1 having a center on the tire's equatorial plane and passing through the tire's equatorial point, a second arc with the radius R2 having a center on the tire's equatorial plane and intersecting with the first arc at an intersection distant from the tire's equatorial plane by 0.2 to 0.25 times the tire width SW, and a third arc with the radius R3 passing through a ground contact outer edge point of the ground contact surface, when a standard load is applied, and a belt intermediate height point on the tread surface. In the specific curvature plane, the curvature radius ratio R2/R3 is set in a range from 4 to 12, and the curvature radius ratio R1/R2 is set in a range from 2.6 to 4.6 when the aspect ratio H/SW is 0.55 or less. The tread surface is provided with a main circumferential groove, preferably having a groove width of 0.06 to 0.10 times the tire width SW, extending near the intersection of the first arc and the second arc in the tire circumferential direction for dividing the tread surface into the crown part and an outer shoulder part. Narrow lateral grooves crossing the tire circumferential direction divide the crown part and shoulder part into blocks.
摘要翻译： 充气子午线轮胎具有沿着特定曲率平面延伸的胎面表面，该胎面表面包括第一弧，其半径R1在轮胎的赤道平面上具有中心并穿过轮胎的赤道点，半径R2具有中心的第二弧 轮胎的赤道平面，并且在远离轮胎的赤道面的交点处与轮胎宽度SW相差0.2至0.25倍的第一弧线相交，并且具有半径R3的第三弧线穿过接地表面的接地接触外边缘点 当施加标准载荷时，在胎面表面上具有带中间高度点。 在特定曲率平面中，曲率半径比R2 / R3设定在4〜12的范围内，当宽高比H / SW为0.55时，曲率半径比R1 / R2设定在2.6〜4.6的范围内 减。 胎面表面设置有主圆周槽，优选地具有轮胎宽度SW的0.06至0.10倍的槽宽度，在轮胎周向上在第一弧和第二弧的交点附近延伸，以将胎面表面分割成 冠部和外肩部。 穿过轮胎周向的窄横向槽将冠部和肩部分割成块。
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公开(公告)号：US5277235A
公开(公告)日：1994-01-11
申请号：US964034
申请日：1992-10-21
申请人： Kenji Saito , Akira Kajikawa , Kazuo Asano
发明人： Kenji Saito , Akira Kajikawa , Kazuo Asano
CPC分类号： B60C11/0083 , B60C11/00 , B60C11/0332 , B60C11/11 , B60C11/13 , Y10S152/902
摘要： A pneumatic radial tire has a tread surface extending along a specific curvature plane which includes a first arc with the radius R1 having a center on the tire's equatorial plane and passing through the tire's equatorial point, a second arc with the radius R2 having a center on the tire's equatorial plane and intersecting with the first arc at an intersection distant from the tire's equatorial plane by 0.2 to 0.25 times the tire width SW, and a third arc with the radius R3 passing through a ground contact outer edge point of the ground contact surface, when a standard load is applied, and a belt intermediate height point on the tread surface. The tread surface is provided with a main circumferential groove, preferably having a groove width of 0.06 to 0.10 times the tire width SW, extending near said intersection of the first arc and the second arc in the tire circumferential direction for dividing the tread surface into the crown part and an outer shoulder part. Narrow lateral grooves crossing the tire circumferential direction divide the crown part and shoulder part into blocks.
摘要翻译： 充气子午线轮胎具有沿着特定曲率平面延伸的胎面表面，该胎面表面包括第一弧，其半径R1在轮胎的赤道平面上具有中心并穿过轮胎的赤道点，半径R2具有中心的第二弧 轮胎的赤道平面，并且在远离轮胎的赤道面的交点处与轮胎宽度SW相差0.2至0.25倍的第一弧线相交，并且具有半径R3的第三弧线穿过接地表面的接地接触外边缘点 当施加标准载荷时，在胎面表面上具有带中间高度点。 胎面表面设置有主圆周槽，优选地具有轮胎宽度SW的0.06至0.10倍的槽宽度，在轮胎周向上在第一弧和第二弧的交点附近延伸，以将胎面表面分割成 冠部和外肩部。 穿过轮胎周向的窄横向槽将冠部和肩部分割成块。
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公开(公告)号：US5222537A
公开(公告)日：1993-06-29
申请号：US598390
申请日：1990-10-18
申请人： Kenji Saito , Akira Kajikawa , Kazuo Asano
发明人： Kenji Saito , Akira Kajikawa , Kazuo Asano
CPC分类号： B60C11/0083 , B60C11/00 , B60C11/0332 , B60C11/11 , B60C11/13 , Y10S152/902
摘要： A pneumatic radial tire has a thread surface extending along a specific curvature plane which includes a first arc with the radius R1 having a center on the tire's equatorial plane and passing through the tire's equatorial point, a second arc with the radius R2 having a center on the tire's equatorial plane and intersecting with the first arc at an intersection distant from the tire's equatorial plane by 0.2 to 0.25 times the tire width SW, and a third arc with the radius R3 passing through a ground contact outer edge point of the ground contact surface, when a standard load is applied, and a belt intermediate height point on the tread surface. In the specific curvature plane, the curvature radius ratio R2/R3 is set in a range from 4 to 12, and the curvature radius ratio R1/R2 is set in a range from 2.6 to 4.6 when the aspect ratio H/SW is 0.55 or less. The tread surface is provided with a main circumferential groove, preferably having a groove width of 0.06 to 0.10 times the tire width SW, extending near the intersection of the first arc and the second arc in the tire circumferential direction for dividing the tread surface into the crown part and an outer shoulder part. Narrow lateral grooves crossing the tire circumferential direction divide the crown part and shoulder part into blocks.
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10.发明授权Apparatus for determining shape of contact patch and contact pressure of tires 失效用于确定接触片形状和轮胎接触压力的装置
公开(公告)号：US5092166A
公开(公告)日：1992-03-03
申请号：US646087
申请日：1991-01-28
申请人： Yasuo Wada , Akira Kajikawa
发明人： Yasuo Wada , Akira Kajikawa
CPC分类号： G01M17/027
摘要： An apparatus for determining the shape of contact patch and the contact pressure of a tire comprises a contact member made of a transparent material, a pressing unit for pressing the outer peripheral surface of the tire against the contact member, a sheet having elastic projections arranged regularly on one surface thereof and uniformly distributed thereover, and an observation device for observing through the contact member the projections as deformed when the tire is pressed against the contact member with the sheet interposed therebetween and with the projections thereof facing the contact member. The shape of contact patch and contact pressure of the tire can be determined by observing deformed projections by the device.
摘要翻译： 用于确定接触片的形状和轮胎的接触压力的装置包括由透明材料制成的接触构件，用于将轮胎的外周面压靠在接触构件上的按压单元，具有规则地布置的弹性突起的片材 在其一个表面上并均匀地分布在其上，以及观察装置，用于通过接触构件观察当轮胎被压靠在接触构件上时的突起变形，并且其突起面向接触构件。 接触片的形状和轮胎的接触压力可以通过观察装置的变形的突起来确定。
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