公开(公告)号：US07341083B2

公开(公告)日：2008-03-11

申请号：US10500244

申请日：2002-12-26

Applicant: Shizuo Iwasaki

Inventor： Shizuo Iwasaki

IPC: B60C11/12

CPC classification number: B60C11/11 ,  B60C11/12 ,  B60C11/1263 ,  B60C2011/1231 ,  Y10S152/03 ,  Y10S152/902

Abstract: A wheel tread part 2 of a tread is constituted of a longitudinal main groove 3 formed in a circumferential direction via a center of a width direction, a plurality of longitudinal subgrooves 4 formed on both side parts of the longitudinal main groove 3 in the circumferential direction, and a plurality of traverse grooves 5 formed in a width direction to intersect the longitudinal main and subgrooves 3, 4, and divided into a plurality of blocks 6. Each of the plurality of blocks 6 is provided with a one-end-open sipe 9, and formed so that rigidity in the width direction can be higher in an end a of a center side region compared with an end b of a shoulder side region. Since the rigidity of the end a of the center side region is higher, a reaction force is generated in accordance with a steering angle from the start of changing the same.

Abstract translation: 胎面的轮胎胎面部分2由沿宽度方向的中心沿圆周方向形成的纵向主槽3，沿纵向主槽3的两个侧面形成的多个纵向子槽4 以及多个横向槽5，其形成在宽度方向上以与纵向主槽和副槽3,4相交，并分成多个块6。 多个块6中的每一个设置有一端开口刀槽花纹9，并且形成为使得与胎肩侧区域的端部b相比，在中心侧区域的端部a中宽度方向上的刚性可以更高 。 由于中心侧区域的端部a的刚性较高，所以根据从其改变开始的转向角度产生反作用力。

公开(公告)号：US4934427A

公开(公告)日：1990-06-19

申请号：US232746

申请日：1988-08-16

Applicant: Kazuo Oshima ,  Shizuo Iwasaki

Inventor： Kazuo Oshima ,  Shizuo Iwasaki

IPC: B60C9/00 ,  B60C9/20 ,  D02G3/48

CPC classification number: B60C9/0042 ,  B60C9/20 ,  D02G3/48 ,  D10B2321/06

Abstract: A pneumatic tire is reinforced with cords made of polyvinyl alcohol based fibers, and meets the following requirements:(1) A tenacity, S (g/d) of the cords taken out from the tire meets a relation: S.gtoreq.14.5-12N.sub.T in which N.sub.T is a coefficient of twist, which is represented by N.sub.T =N.times..sqroot.0.139.times.D/.rho..times.10-3. N, D and .rho. are a number of twist (turns/10 cm), a half of a total denier of the cords, and a specific density of the cords, respectively.(2) A tenacity-retaining percentage of the cords in an absolutely dried state is not less than 90% of that before the treatment with boiling water. The absolutely dried state means that after the cord is treated with boiling water at 120.degree. C. while being maintained at a constant length, the cord is dried.

Abstract translation: 充气轮胎用聚乙烯醇系纤维制成的帘线进行加强，满足以下要求：（1）从轮胎取出的帘线的强度S（g / d）满足关系：S> = = 14.5- 12NT，其中NT是扭转系数，其由NT = N×2ROOT 0.139×D / rho×10-3表示。 N，D和rho分别是捻数（匝数/ 10cm），帘线总旦数的一半，帘线的特定密度。 （2）绝对干燥状态下的帘线的强度保持率不低于用沸水处理之前的90％。 绝对干燥的状态意味着在120℃下用热水处理，同时保持恒定的长度，将帘线干燥。

公开(公告)号：US06360799B1

公开(公告)日：2002-03-26

申请号：US09650652

申请日：2000-08-30

Applicant: Shizuo Iwasaki

Inventor： Shizuo Iwasaki

IPC: B60C1506

CPC classification number: B60C17/0009 ,  B60C15/06 ,  Y10T152/10828 ,  Y10T152/10864

Abstract: A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, and at least one carcass ply toroidally extending between a pair of bead cores and wound around the bead core to form a turnup portion, in which a reinforcing rubber having substantially a crescent shape at its lateral section is disposed at an inside of the sidewall portion and a cord reinforcing layer containing cord(s) extending in a direction of approximately 90° with respect to a radial line segment is disposed in at least a bead portion.

Abstract translation: 一种充气轮胎包括胎面部分，一对侧壁部分，一对胎圈部分和至少一个胎体帘布层，环形地延伸在一对胎圈芯之间并围绕胎圈芯缠绕以形成翻转部分，其中增强 在侧壁部分的内侧设置有在其侧部具有基本上月牙形的橡胶，并且至少包括一条包含沿相对于径向线段大约90°的方向延伸的绳索的帘线加强层 珠部分。

公开(公告)号：US5005626A

公开(公告)日：1991-04-09

申请号：US133405

申请日：1987-12-15

Applicant: Kazuo Oshima ,  Shizuo Iwasaki

Inventor： Kazuo Oshima ,  Shizuo Iwasaki

IPC: B60C9/18 ,  B60C9/00 ,  B60C9/26 ,  B60C15/00 ,  B60C15/06

CPC classification number: B60C15/06 ,  B60C15/0607 ,  B60C9/26

Abstract: A pneumatic radial tire having a low noise and an improved cornering stability has a belt structure of at least two belt layers composed of at least one layer containing cords each obtained by twisting organic fibers and at least one layer containing steel cords, at least one of the organic fiber cord layers being interposed between the steel cord layer and a tread at a state that both transversely outermost end portions are folded inward. This organic fiber cord is a cord obtained by twisting high strength, high modulus polyvinyl alcohol fibers and has particular twisting coefficient and strength. The tire further satisfies a particular relation between a height of a turnup portion of a carcass ply around a bead portion and a tensile stress at 50% elongation of a bead filler rubber reinforcing the bead portion at room temperature.

Abstract translation: 具有低噪音和改进的转弯稳定性的充气子午线轮胎具有至少两个带束层结构，该带束层结构由至少一层含有帘线的层组成，每个层包含通过扭转有机纤维而得到的帘线和至少一层包含钢丝绳的层， 在两个横向最外端部向内折叠的状态下，有机纤维帘线层插入在钢帘线层和胎面之间。 该有机纤维帘线是通过扭转高强度，高模量聚乙烯醇纤维而获得的帘线，具有特别的扭转系数和强度。 轮胎还满足围绕胎圈部分的胎体帘布层的卷起部分的高度与在室温下加强胎圈部分的胎圈填充橡胶的50％伸长率的拉伸应力之间的特定关系。

公开(公告)号：US5291930A

公开(公告)日：1994-03-08

申请号：US10449

申请日：1993-01-25

Applicant: Michitsugu Kikuchi ,  Norio Inada ,  Shizuo Iwasaki

Inventor： Michitsugu Kikuchi ,  Norio Inada ,  Shizuo Iwasaki

IPC: B60C9/00 ,  B60C9/20 ,  B60C9/18

CPC classification number: B60C9/0028 ,  B60C9/20

Abstract: A pneumatic radial tire including one or more belt layers, wherein cords are used as cords for reinforcing at least one belt layer. These cords are formed by impregnating and attaching a resin having a modulus in tension of not more than 150 kg/mm.sup.2 to bundles of cord-like fibers composed of a number of filaments having a tensile strength of not less than 15 g/d and a fineness of 1-15 deniers, an impregnated and attached amount of the filaments being in a range of 30% to 70 wt % relative to a weight of the filaments, and each of the cords has an elliptical or rectangular cross-section shape having an aspect ratio of a major axis (b)/a minor axis (a) being 1.5 to 5. Each of the bundles of the fibers are not twisted.

Abstract translation: 一种充气子午线轮胎，其包括一个或多个带束层，其中帘线被用作用于加强至少一个带束层的帘线。 这些帘线通过将拉伸模量不大于150kg / mm 2的树脂浸渍并附着到由许多拉伸强度不小于15g / d的长丝组成的绳状纤维束和 细丝为1-15旦尼尔，相对于长丝的重量，长丝的浸渍和附着量在30％至70重量％的范围内，并且每根帘线具有椭圆形或矩形的横截面形状，其具有 长轴（b）/短轴（a）的纵横比为1.5〜5。纤维束的每一根都不会扭曲。

公开(公告)号：US5246051A

公开(公告)日：1993-09-21

申请号：US755230

申请日：1991-09-05

Applicant: Norio Inada ,  Shizuo Iwasaki ,  Michitsugu Kikuchi

Inventor： Norio Inada ,  Shizuo Iwasaki ,  Michitsugu Kikuchi

IPC: B60C9/00 ,  B60C9/20 ,  D02G3/48

CPC classification number: B60C9/0042 ,  B60C9/20 ,  D02G3/48 ,  Y10S57/902

Abstract: A pneumatic radial tire comprises a belt comprised of plural belt layers, in which at least one belt layer is formed by arranging particular twisted cords, which are obtained by twisting particular filament-resin composite bodies, at a particular end count. In this tire, the weight is light, the rolling resistance and steering stability as well as the resistances to bending of belt cord in the rapid turning and breaking of belt cord in the running on bad road are considerably excellent.

公开(公告)号：US5115854A

公开(公告)日：1992-05-26

申请号：US593531

申请日：1990-10-05

Applicant: Kazuo Oshima ,  Shizuo Iwasaki

Inventor： Kazuo Oshima ,  Shizuo Iwasaki

IPC: B29D30/38 ,  B60C9/00 ,  B60C9/08

CPC classification number: B60C9/08 ,  B60C9/0042

Abstract: A low rolling resistance pneumatic radial tire having an improved appearance comprises a carcass composed of a single rubberized carcass ply containing cords therein. The carcass ply cord is a high tenacity vinylon cord having characteristics after vulcanization represented by the following equations: ##EQU1## Further, the carcass ply has the number of overlapped cords of not more than 15 at the shoulder portion in its joint portion.

Abstract translation: 具有改善外观的低滚动阻力充气子午线轮胎包括由其中包含绳索的单个橡胶化胎体帘布层组成的胎体。 胎体帘布层帘线是具有以下等式表示的硫化后的特征的高强度维尼纶帘线：0.5≤E（3）（1）E×DELTA S / = 14.5-12 NT（3）此外，胎体帘布层在其接合部的肩部具有不超过15根的重叠帘线的数量。

公开(公告)号：US06336486B1

公开(公告)日：2002-01-08

申请号：US09052968

申请日：1998-04-01

Applicant: Shizuo Iwasaki ,  Kazuo Yagawa ,  Naohiro Sasaka ,  Kazuo Hayashi

Inventor： Shizuo Iwasaki ,  Kazuo Yagawa ,  Naohiro Sasaka ,  Kazuo Hayashi

IPC: B60C100

CPC classification number: B60C11/00 ,  B60C1/0016 ,  B60C11/005 ,  B60C11/03 ,  B60C11/0309 ,  B60C11/18

Abstract: A pneumatic radial tire comprises a tread portion having a two-layer structure of a cap rubber layer disposed outward in the radial direction and a base rubber layer disposed inward in the radial direction, in which an outer surface of said base rubber layer in the radial direction being existent in a position corresponding to not less than 20% of a depth of a main groove formed in the tread portion outward from a bottom of the main groove in the radial direction, and the base rubber layer being compounded with a recrosslinking inhibition assistant and/or an inorganic compound powder.

Abstract translation: 一种充气子午线轮胎包括具有沿径向向外设置的盖橡胶层的两层结构的胎面部分和沿径向向内设置的基部橡胶层，其中所述基部橡胶层的径向的外表面 方向存在于对应于在径向方向上从主槽的底部向外形成的胎面部中形成的主槽的深度不小于20％的位置，并且基部橡胶层与再交联抑制助剂 和/或无机化合物粉末。

公开(公告)号：US5529105A

公开(公告)日：1996-06-25

申请号：US410899

申请日：1995-03-27

Applicant: Kazuo Hayashi ,  Shizuo Iwasaki

Inventor： Kazuo Hayashi ,  Shizuo Iwasaki

IPC: B60C9/20 ,  B60C9/22 ,  B60C17/00 ,  B60C9/18 ,  B60C17/06

CPC classification number: B60C9/2204 ,  B60C17/0009 ,  B60C9/0064 ,  B60C9/2009 ,  B60C2017/0081 ,  Y10T152/10792 ,  Y10T152/10801 ,  Y10T152/10864

Abstract: A pneumatic radial tire comprising a pair of bead portions and sidewall portions and a tread portion connecting the sidewalls. At least one radial carcass layer reinforcing said portions is positioned between two beads embedded in the bead portions. A belt comprises at least two layers having cords crossing each other from one layer to the next, a cap circumferentially wound having organic fiber cords therein and reinforcing rubber layers in an entire region of the side wall portions supporting a load of the tire having a crescent shaped cross section along an inner side of the carcass. At least one tie-element layer resisting force generated in width directions of the tire and having many cords oriented substantially orthogonally with respect to an equatorial plane of the tire is arranged between the belt and the cap.

公开(公告)号：US4889174A

公开(公告)日：1989-12-26

申请号：US927016

申请日：1986-11-05

Applicant: Kazuo Oshima ,  Shizuo Iwasaki

Inventor： Kazuo Oshima ,  Shizuo Iwasaki

IPC: B60C9/00 ,  B60C9/26

CPC classification number: B60C9/0042 ,  B60C9/26

Abstract: A pneumatic radial tire having improved cornering stability, service durability and rolling resistance is provided by using high-elasticity, high-strength vinylon fiber having specified elongation and strength as a cord material for at least one belt layer in a belt composed of at least two belt layers. Particularly, noise level can be reduced without damaging other tire performances by combining at least one layer of high-elasticity, high-strength vinylon fiber cords with at least one layer of steel cords as a belt of the tire.

Abstract translation: 具有改善的转弯稳定性，使用寿命和滚动阻力的充气子午线轮胎通过使用具有特定伸长率和强度的高弹性，高强度维尼纶纤维作为至少一个带束层中的至少一个带层的帘线材料， 皮带层。 特别地，通过将​​至少一层高弹性高强度维尼纶纤维帘线与至少一层钢帘线层组合成轮胎的带，可以降低噪声水平而不损害其他轮胎性能。