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公开(公告)号：US08464770B2
公开(公告)日：2013-06-18
申请号：US13043588
申请日：2011-03-09
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
CPC classification number: B60C11/00 , B60C11/0058 , B60C19/001 , B60C2011/0025 , B60C2200/10
Abstract: The tread portion 2 is divided in the tire widthwise direction into five regions comprising the center tread region A, respective shoulder tread regions C, and respective intermediate tread regions B. A curved length in the tire widthwise direction of a tread surface of the center tread region A is in the range of 10 to 35% of the curved length in the tire widthwise direction of the entire tread surface, and the whole curved length in the tire widthwise direction of a tread surface of the shoulder tread regions C is in the range of 5 to 35% of the curved length in the tire widthwise direction of the entire tread surface. 100% Mod, i.e. the modulus at 100% elongation, of tread rubber forming the intermediate tread region B is larger than 100% Mod of tread rubber forming the center tread region A, and loss tangent of each shoulder tread region C is larger than loss tangent of the center tread region A.
Abstract translation: 胎面部分2在轮胎宽度方向上划分成包括中心胎面区域A，各个肩部胎面区域C和各个中间胎面区域B的五个区域。中心胎面的胎面表面的轮胎宽度方向上的弯曲长度 区域A在整个胎面表面的轮胎宽度方向上的弯曲长度的10〜35％的范围内，胎肩胎面区域C的胎面表面的轮胎宽度方向的整个弯曲长度在该范围内 在整个胎面表面的轮胎宽度方向上弯曲长度的5至35％。 形成中间胎面区域B的胎面橡胶的100％模量即100％伸长率的模量大于形成中心胎面区域A的胎面橡胶的100％Mod，并且每个胎面胎面区域C的损耗角正切大于损失 中心胎面区域A的切线
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公开(公告)号：US08176956B2
公开(公告)日：2012-05-15
申请号：US12376402
申请日：2007-07-06
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
CPC classification number: B60C11/00 , B60C9/2204 , B60C11/005 , B60C2011/0025 , B60C2200/10 , Y10S152/905
Abstract: There is provided a pneumatic radial tire for a motorcycle, which reduces a difference between rigidities of the center section and the shoulder sections of a tread section to simultaneously provide a long wear life, high grip force, and high-speed durability without impairing linear characteristics of handling. It is a pneumatic radial tire for a motorcycle having a carcass 1 and a belt layer 2. A tread section is formed of a center section rubber 3, disposed in a widthwise center region of the tire and on both sides of a tire equator, and both side rubber 4, disposed on both widthwise ends of the tire. In addition, the tread section has a structure in which the center section rubber 3 and the both side rubber 4 are successively laminated upon each other at both widthwise ends of the tire. Further, the ratio of the thickness of both side rubber 4 in the tread section increases towards both widthwise ends of the tire, and a modulus of the both side rubber 4 is less than a modulus of the center section rubber 3.
Abstract translation: 提供了一种用于摩托车的充气子午线轮胎，其减小了胎面部分的中心部分和胎肩部分的刚性之间的差异，以同时提供长的磨损寿命，高抓地力和高速耐久性，而不损害线性特性 的处理。 它是一种用于具有胎体1和带束层2的摩托车的充气子午线轮胎。胎面部分由设置在轮胎的宽度方向中心区域和轮胎赤道两侧的中心部分橡胶3形成， 两侧橡胶4，设置在轮胎的两个宽度方向的两端。 此外，胎面部具有中央部橡胶3和两侧橡胶4在轮胎的宽度方向两端相继层叠的结构。 此外，两侧橡胶4的胎面部的厚度的比例向轮胎的宽度方向的两端部增加，两侧橡胶4的模量比中心部橡胶3的模量小。
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公开(公告)号：US20100236677A1
公开(公告)日：2010-09-23
申请号：US12681230
申请日：2008-08-21
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
CPC classification number: B60C11/00 , B60C11/0058 , B60C11/0332 , B60C19/001 , B60C2200/10
Abstract: A pneumatic tire for motorcycle capable of increasing peel resistance of a joint portion between regions against a larger lateral force when a camber angle is large, characterized in that each approximate straight line at a meridional section of join lines between a central tread rubber 7a and an intermediate tread rubber 7b and between the intermediate tread rubber 7b and a shoulder tread rubber 7c is extended obliquely in a direction of intersecting a phantom extended line of the each approximate straight line with the tire equatorial plane inside the tire, and an intersecting angle β of the approximate straight line j2 of the join line between the intermediate tread rubber 7b and the shoulder tread rubber 7c with a tangential line drawn to a joint point of these tread rubbers at a ground contact surface and located at the side of the tire equatorial plane is smaller than an intersecting angle α of the approximate straight line j1 of the join line between the central tread rubber 7a and the intermediate tread rubber 7b with a tangential line drawn to a joint point of these tread rubbers at the ground contact surface and located at the side of the tire equatorial plane.
Abstract translation: 一种用于摩托车的充气轮胎，当外倾角大时，能够增大区域之间的接合部分的抗剥离性，其特征在于，在中央胎面橡胶7a和中央胎面橡胶7a之间的接合线的中间部分处的每个近似直线 中间胎面橡胶7b和中间胎面橡胶7b和胎肩胎面橡胶7c之间沿与每个近似直线的假想延伸线与轮胎赤道面相交的方向倾斜地延伸，并且具有交叉角度＆bgr; 中间胎面橡胶7b和胎肩胎面橡胶7c之间的接合线的近似直线j2，其切线在这些胎面橡胶的接地点处在接地面处并且位于轮胎赤道面的一侧 小于中央胎面橡胶7a和中间胎面橡胶7b之间的接合线的近似直线j1的相交角α，其切线被绘制到这些胎面橡胶在接地表面处的接合点并且位于 轮胎赤道平面的一侧。
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公开(公告)号：US07793695B2
公开(公告)日：2010-09-14
申请号：US11886334
申请日：2006-02-16
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
CPC classification number: B60C9/09 , B60C5/142 , B60C9/0207 , B60C9/2204 , B60C11/0058 , B60C15/0036 , B60C2009/2271 , B60C2200/10 , Y10T152/10765 , Y10T152/10792 , Y10T152/10864
Abstract: There is provided a pneumatic radial tire for a motorcycle whose turning stability is improved by achieving both grounding performance and lateral rigidity at high level. A mono-spiral belt (MSB) (3) includes steel cords whose tensile break strength is 5.9 Pa or more. A value Tc of a number of driven cords in the MSB (per 25 mm in width) at an equator of the tire and a value Ts at shoulder parts thereof meet requirements of 17≦Tc≦24 and 0.6≦Ts/Tc≦0.9. A disposed width BW of the MSB meets a requirement of 0.6≦BW/TW≦1.0. At least one textile-reinforcing layer having tensile break strength of 5.9 Pa or more is disposed at both ends of the MSB while overlapping with the MSB. An overlap of the MSB with the textile-reinforcing layer is 4 to 10 times of the diameter D of the steel cords in the MSB.
Abstract translation: 提供了一种用于摩托车的充气子午线轮胎，其通过实现高水平的接地性能和侧向刚度来提高其转向稳定性。 单螺旋带（MSB）（3）包括抗拉断裂强度为5.9Pa以上的钢丝绳。 在轮胎赤道处的MSB（每25mm宽）中的多个从动帘线的数值Tc和肩部的值Ts满足17＆nlE; Tc＆nlE; 24和0.6＆nlE; Ts / Tc＆nlE; 0.9 。 MSB的布置宽度BW满足0.6＆nlE; BW / TW＆nlE; 1.0的要求。 至少一个具有5.9Pa或更大的拉伸断裂强度的织物加强层设置在MSB的两端，同时与MSB重叠。 MSB与织物增强层的重叠度是MSB中钢丝帘线直径D的4〜10倍。
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公开(公告)号：USD680057S1
公开(公告)日：2013-04-16
申请号：US29415839
申请日：2012-03-14
Applicant: Hidemitsu Nakagawa
Designer： Hidemitsu Nakagawa
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Patent Agency Ranking
公开(公告)号：US20120024446A1
公开(公告)日：2012-02-02
申请号：US13203399
申请日：2010-02-22
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
CPC classification number: B60C11/00 , B60C11/0058 , B60C2011/0025 , B60C2200/10 , Y10T152/10495
Abstract: The present invention provides a pneumatic tire for a motorcycle which secures a sufficiently large lateral force in the intermediate region contacting the ground particularly when a middle camber angle is applied to the tire and increases a driving force and a braking force. The tire comprises a tread portion 1, side wall portions 2 and bead portions 3. This tread portion 1 comprises five regions of a central region A, shoulder regions C and intermediate regions B. Loss tangent of at least a portion forming a ground contact surface of an intermediate tread rubber 7b disposed over an entire region of the intermediate regions B is larger than both of loss tangent of at least a portion forming a ground contact surface of a central tread rubber 7a disposed over an entire region of the central region A and loss tangent of at least a portion forming a ground contact surface of a shoulder tread rubber 7c disposed over an entire region of the shoulder regions C.
Abstract translation: 本发明提供了一种用于摩托车的充气轮胎，其在接近地面的中间区域中确保足够大的侧向力，特别是当向轮胎施加中间外倾角并增加驱动力和制动力时。 轮胎包括胎面部分1，侧壁部分2和胎圈部分3.该胎面部分1包括中心区域A，肩部区域C和中间区域B的五个区域。形成接地表面的至少一部分的损耗切线 设置在中间区域B的整个区域上的中间胎面橡胶7b大于形成设置在中心区域A的整个区域上的中央胎面橡胶7a的接地面的至少一部分的损耗角正切和 形成肩部胎面橡胶7c的地面接触面的至少一部分的损耗角正切，其设置在肩部区域C的整个区域上。
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公开(公告)号：US20090078349A1
公开(公告)日：2009-03-26
申请号：US11914524
申请日：2006-04-03
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
IPC: B60C11/11
CPC classification number: B60C11/0311 , B60C11/0302 , B60C2011/0374 , B60C2200/10
Abstract: There is provided a pneumatic radial tire for a motorcycle enabling safe running the motorcycle in conformity to various road conditions by achieving both performances of wet performance, i.e., hydroplaning and traction performances in particular, and linearity in handling at high level. In the pneumatic radial tire for a motorcycle, (a) tilt lug grooves are disposed at a tilt angle of 5 to 85° relative to a tire circumferential direction, (b) a ratio of the minimum length Lmin thereof to the surface length W thereof along one side of a tread is 0.1 or higher, (c) two groups of the tilt lug grooves are formed of two or more tilt lug grooves disposed substantially in parallel from each other, (d) they are formed of a first group of tilt lug grooves (G1) formed in a shape of chevron and a second group of tilt lug grooves (G2) formed in a shape of reversed chevron, (e) the G1 and G2 groups are alternately disposed in the circumferential direction, and (f) the G1 and G2 groups are mutually disposed on both sides of the equator of the tire line-symmetrically with respect to the equator and with an offset in the circumferential direction.
Abstract translation: 本发明提供一种摩托车用充气子午线轮胎，其能够通过实现湿式性能，特别是滑水和牵引性能以及高水平的处理线性，从而能够根据各种道路条件来安全地行驶摩托车。 在摩托车用充气子午线轮胎中，（a）倾斜横向花纹槽相对于轮胎周向以5〜85度的倾斜角度配置，（b）其最小长度Lmin与其表面长度W的比率 沿着胎面的一侧为0.1或更高，（c）两组倾斜横向花纹沟由两个或更多个基本上彼此平行设置的倾斜横向花纹沟形成，（d）它们由第一组倾斜 形成为人字形形状的横向花纹沟（G1）和形成为反向人字形形状的第二组倾斜横向花纹沟（G2），（e）G1和G2组沿圆周方向交替设置，（f） G1和G2组相对于赤道对称地在轮胎线的赤道的两侧相互配置，并且在圆周方向上具有偏移。
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公开(公告)号：US08944124B2
公开(公告)日：2015-02-03
申请号：US13203399
申请日：2010-02-22
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
CPC classification number: B60C11/00 , B60C11/0058 , B60C2011/0025 , B60C2200/10 , Y10T152/10495
Abstract: The present invention provides a pneumatic tire for a motorcycle which secures a sufficiently large lateral force in the intermediate region contacting the ground particularly when a middle camber angle is applied to the tire and increases a driving force and a braking force. The tire comprises a tread portion 1, side wall portions 2 and bead portions 3. This tread portion 1 comprises five regions of a central region A, shoulder regions C and intermediate regions B. Loss tangent of at least a portion forming a ground contact surface of an intermediate tread rubber 7b disposed over an entire region of the intermediate regions B is larger than both of loss tangent of at least a portion forming a ground contact surface of a central tread rubber 7a disposed over an entire region of the central region A and loss tangent of at least a portion forming a ground contact surface of a shoulder tread rubber 7c disposed over an entire region of the shoulder regions C.
Abstract translation: 本发明提供了一种用于摩托车的充气轮胎，其在接近地面的中间区域中确保足够大的侧向力，特别是当向轮胎施加中间外倾角并增加驱动力和制动力时。 轮胎包括胎面部分1，侧壁部分2和胎圈部分3.该胎面部分1包括中心区域A，肩部区域C和中间区域B的五个区域。形成接地表面的至少一部分的损耗切线 设置在中间区域B的整个区域上的中间胎面橡胶7b大于形成设置在中心区域A的整个区域上的中央胎面橡胶7a的接地面的至少一部分的损耗角正切和 形成肩部胎面橡胶7c的地面接触面的至少一部分的损耗角正切，其设置在肩部区域C的整个区域上。
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公开(公告)号：US20100163145A1
公开(公告)日：2010-07-01
申请号：US12663443
申请日：2008-04-18
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
CPC classification number: B60C11/00 , B60C11/0058 , B60C19/001 , B60C2011/0025 , B60C2200/10
Abstract: The tread portion 2 is divided in the tire widthwise direction into five regions comprising the center tread region A, respective shoulder tread regions C, and respective intermediate tread regions B. A curved length in the tire widthwise direction of a tread surface of the center tread region A is in the range of 10 to 35% of the curved length in the tire widthwise direction of the entire tread surface, and the whole curved length in the tire widthwise direction of a tread surface of the shoulder tread regions C is in the range of 5 to 35% of the curved length in the tire widthwise direction of the entire tread surface. 100% Mod, i.e. the modulus at 100% elongation, of tread rubber forming the intermediate tread region B is larger than 100% Mod of tread rubber forming the center tread region A, and loss tangent of each shoulder tread region C is larger than loss tangent of the center tread region A.
Abstract translation: 胎面部分2在轮胎宽度方向上划分成包括中心胎面区域A，各个肩部胎面区域C和各个中间胎面区域B的五个区域。中心胎面的胎面表面的轮胎宽度方向上的弯曲长度 区域A在整个胎面表面的轮胎宽度方向上的弯曲长度的10〜35％的范围内，胎肩胎面区域C的胎面表面的轮胎宽度方向的整个弯曲长度在该范围内 在整个胎面表面的轮胎宽度方向上弯曲长度的5至35％。 形成中间胎面区域B的胎面橡胶的100％模量即100％伸长率的模量大于形成中心胎面区域A的胎面橡胶的100％Mod，并且每个胎面胎面区域C的损耗角正切大于损失 中心胎面区域A的切线
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公开(公告)号：US20080190537A1
公开(公告)日：2008-08-14
申请号：US11886334
申请日：2006-02-16
Applicant: Hidemitsu Nakagawa
Inventor： Hidemitsu Nakagawa
IPC: B60C9/00
CPC classification number: B60C9/09 , B60C5/142 , B60C9/0207 , B60C9/2204 , B60C11/0058 , B60C15/0036 , B60C2009/2271 , B60C2200/10 , Y10T152/10765 , Y10T152/10792 , Y10T152/10864
Abstract: There is provided a pneumatic radial tire for a motorcycle whose turning stability is improved by achieving both grounding performance and lateral rigidity at high level. A mono-spiral belt (MSB) (3) includes steel cords whose tensile break strength is 5.9 Pa or more. A value Tc of a number of driven cords in the MSB (per 25 mm in width) at an equator of the tire and a value Ts at shoulder parts thereof meet requirements of 17≦Tc≦24 and 0.6≦Ts/Tc≦0.9. A disposed width BW of the MSB meets a requirement of 0.6≦BW/TW≦1.0. At least one textile-reinforcing layer having tensile break strength of 5.9 Pa or more is disposed at both ends of the MSB while overlapping with the MSB. An overlap of the MSB with the textile-reinforcing layer is 4 to 10 times of the diameter D of the steel cords in the MSB.
Abstract translation: 提供了一种用于摩托车的充气子午线轮胎，其通过实现高水平的接地性能和侧向刚度来提高其转向稳定性。 单螺旋带（MSB）（3）包括抗拉断裂强度为5.9Pa以上的钢丝绳。 在轮胎的赤道处的MSB中的多个从动帘线的数量Tc（宽25mm）和肩部的值Ts满足17 <= Tc <= 24且0.6 <= Ts / Tc <= 0.9。 MSB的布置宽度BW满足0.6 <= BW / TW <= 1.0的要求。 至少一个具有5.9Pa或更大的拉伸断裂强度的织物加强层设置在MSB的两端，同时与MSB重叠。 MSB与织物增强层的重叠度是MSB中钢丝帘线直径D的4〜10倍。
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