公开(公告)号：US09193217B2

公开(公告)日：2015-11-24

申请号：US13321165

申请日：2010-05-26

Applicant: Masatoshi Kuwajima

Inventor： Masatoshi Kuwajima

IPC: B60C11/12

CPC classification number: B60C11/12 ,  B60C11/1218 ,  B60C11/1222 ,  B60C11/1272 ,  B60C2011/1213 ,  B60C2011/1227 ,  B60C2011/1254

Abstract: A pneumatic tire including a closed sipe 5 formed in a tread surface 1 that includes a small hole 2 extending along a tire radial direction and a plurality of cuts 4 extending in a radiation direction from the small hole 2 and that terminating in a land portion 3. A diameter of an inscribed circle of the small hole 2 is greater than a thickness of the cuts 4. The cuts 4 are provided with a twist in a depth direction centered on the small hole 2, and a twist angle θ from a top surface to a bottom surface of the land portion 3 is not less than 10° and less than 135°.

Abstract translation: 一种充气轮胎，其包括形成在胎面1上的封闭的刀槽花纹5，该胎面花纹5包括沿着轮胎径向延伸的小孔2和从小孔2沿辐射方向延伸的多个切口4，并且终止于陆部3 小孔2的内接圆的直径大于切口4的厚度。切口4在以小孔2为中心的深度方向上具有扭曲和扭曲角度; 从陆部3的顶面到底面不小于10°且小于135°。

公开(公告)号：US20120060989A1

公开(公告)日：2012-03-15

申请号：US13321165

申请日：2010-05-26

Applicant: Masatoshi Kuwajima

Inventor： Masatoshi Kuwajima

IPC: B60C11/12

CPC classification number: B60C11/12 ,  B60C11/1218 ,  B60C11/1222 ,  B60C11/1272 ,  B60C2011/1213 ,  B60C2011/1227 ,  B60C2011/1254

Abstract: A pneumatic tire including a closed sipe 5 formed in a tread surface 1 that includes a small hole 2 extending along a tire radial direction and a plurality of cuts 4 extending in a radiation direction from the small hole 2 and that terminating in a land portion 3. A diameter of an inscribed circle of the small hole 2 is greater than a thickness of the cuts 4. The cuts 4 are provided with a twist in a depth direction centered on the small hole 2, and a twist angle θ from a top surface to a bottom surface of the land portion 3 is not less than 10° and less than 135°.

Abstract translation: 一种充气轮胎，其包括形成在胎面1上的封闭的刀槽花纹5，该胎面花纹5包括沿着轮胎径向延伸的小孔2和从小孔2沿辐射方向延伸的多个切口4，并且终止于陆部3 小孔2的内接圆的直径大于切口4的厚度。切口4在以小孔2为中心的深度方向上具有扭曲和扭曲角度; 从陆部3的顶面到底面不小于10°且小于135°。

公开(公告)号：US07451637B2

公开(公告)日：2008-11-18

申请号：US11172926

申请日：2005-07-05

Applicant: Masatoshi Kuwajima ,  Toshihiko Okano

Inventor： Masatoshi Kuwajima ,  Toshihiko Okano

IPC: G01B5/28

CPC classification number: G01N19/02

Abstract: A method of evaluating contact characteristics of an object having a roughness includes setting geometric shape data for the roughness; creating a roughness model and a structure model that comes in contact with the roughness, based on the geometric shape data set; making the roughness model and the structure model come in contact with each other; acquiring a physical amount occurring at least one of a contact region of the roughness model and a contact region of the structure model; and obtaining an evaluation value for evaluating a real contact state in the contact region between the roughness model and the structure model, from the physical amount acquired.

Abstract translation: 评估具有粗糙度的物体的接触特性的方法包括设置粗糙度的几何形状数据; 基于几何形状数据集创建粗糙度模型和与粗糙度接触的结构模型; 使粗糙度模型和结构模型相互接触; 获取出现所述粗糙度模型的接触区域和所述结构模型的接触区域中的至少一个的物理量; 以及从获得的物理量获得用于评估粗糙度模型和结构模型之间的接触区域中的实际接触状态的评估值。

公开(公告)号：US20120103490A1

公开(公告)日：2012-05-03

申请号：US13381867

申请日：2010-06-14

Applicant: Katsuyoshi Sekine ,  Masatoshi Kuwajima

Inventor： Katsuyoshi Sekine ,  Masatoshi Kuwajima

IPC: B60C11/12

CPC classification number: B60C11/12 ,  B60C11/11 ,  B60C11/1281 ,  B60C2011/1213 ,  B60C2011/1227 ,  B60C2011/1254 ,  Y10S152/03

Abstract: A pneumatic tire including a closed sipe 5 in a land portion 3 formed in a tread surface 1, provided with at least three cuts 4 extending in a radiation direction from an imaginary axis 2 that extends in a depth direction of the land portion 3, and that terminate in the land portion 3. A widened portion 6 where a width of a cut is locally increased is formed at least one position of an intermediate region from the imaginary axis 2 to a terminating portion 4z of the cuts 4.

Abstract translation: 一种充气轮胎，其包括形成在胎面表面1中的陆部3中的封闭的刀槽花纹5，所述胎面部3设置有沿着辐射方向延伸的至少三个切口4，所述假想轴线2沿着所述陆部3的深度方向延伸;以及 切口的宽度局部增大的加宽部分6形成从假想轴2到切口4的终止部分4z的中间区域的至少一个位置。

公开(公告)号：US07472734B2

公开(公告)日：2009-01-06

申请号：US10568345

申请日：2004-09-03

Applicant: Masatoshi Kuwajima

Inventor： Masatoshi Kuwajima

IPC: B60C17/00 ,  B60C17/04

CPC classification number: B60C17/06 ,  B60C17/043 ,  Y10T152/10009

Abstract: A tire/wheel assembly comprising: a wheel having a disc and a rim provided on the outer peripheral edge of the disc in such a manner that the widthwise center of the rim is offset towards one side; a pneumatic tire mounted on the rim; and a run-flat support member disposed in the cavity of the pneumatic tire, the run-flat support member having an annular shell and elastic rings, the annular shell including a support surface located radially outwardly thereof and two leg portions formed radially inwardly thereof in a straddling state, the support surface having a plurality of convexly curved surface sections that are widthwisely arranged, the elastic rings supporting the leg portions on the rim. One of the elastic rings located on the opposite side of the rim to the offset side is smaller in rigidity than the other of the elastic rings located on the offset side.

Abstract translation: 一种轮胎/车轮组件，包括：轮，其具有盘和轮缘，所述轮缘和轮缘设置在所述盘的外周缘上，使得轮缘的宽度方向中心朝向一侧偏移; 安装在轮辋上的充气轮胎; 以及设置在所述充气轮胎的空腔中的平坦的支撑构件，所述平坦的支撑构件具有环形壳和弹性环，所述环形壳包括位于其径向外侧的支撑表面和径向向内形成的两个腿部 所述支撑面具有宽度方向布置的多个凸曲面部，所述弹性环将所述腿部支撑在所述轮辋上。 位于边缘相对于偏移侧的相对侧的弹性环中的一个刚性比位于偏移侧的另一个弹性环的刚性小。

公开(公告)号：US20080163966A1

公开(公告)日：2008-07-10

申请号：US10567772

申请日：2004-06-08

Applicant: Masatoshi Kuwajima

Inventor： Masatoshi Kuwajima

IPC: B60C17/04

CPC classification number: B60C17/04 ,  B60C17/043

Abstract: Disclosed is a tire/wheel assembly which, even in a case of forming a run-flat support member by processing a metal material high in breaking strength, realizes the forming without generating wrinkles and cracks. In the tire/wheel assembly, a run-flat support member is inserted into a cavity portion of a pneumatic tire mounted onto a rim, a run-flat support member being formed of an annular shell having an arched cross-section, and elastic rings attached to bent ends of the annular shell in an inner peripheral side thereof In the tire/wheel assembly, while plural notches are provided in the bent ends along a circumferential direction thereof, a length Ln (mm) of the notches in the circumferential direction is set between 1.0 mm and 15.0 mm inclusive, and a ratio Ws/Wg of a width Ws (mm) of the bent ends of the annular shell to a thickness Wg (mm) of the elastic rings is set between 0.55 and 0.92 inclusive.

Abstract translation: 公开了一种轮胎/车轮组件，即使在通过加工具有高断裂强度的金属材料形成挡板支撑构件的情况下，实现成形而不产生褶皱和裂纹。 在轮胎/车轮组件中，将平坦的支撑构件插入到安装在轮辋上的充气轮胎的空腔部分中，由具有拱形横截面的环形壳形成的平坦的支撑构件和弹性环 在轮胎/车轮组件中，在弯曲端部设有多个切口，沿圆周方向的切口的长度Ln（mm）为 设定为1.0mm以上且15.0mm以下，环状壳体的弯曲端部的宽度Ws（mm）与弹性环的厚度Wg（mm）之比Ws / Wg为0.55〜0.92。

公开(公告)号：US07201197B2

公开(公告)日：2007-04-10

申请号：US10509229

申请日：2003-07-23

Applicant: Akira Kuramori ,  Atsushi Tanno ,  Masatoshi Kuwajima ,  Mitsuo Ikeda ,  Tsuyoshi Uehara

Inventor： Akira Kuramori ,  Atsushi Tanno ,  Masatoshi Kuwajima ,  Mitsuo Ikeda ,  Tsuyoshi Uehara

IPC: B60C17/04 ,  B60C5/16 ,  B60C15/02

CPC classification number: B60C11/04 ,  B60C11/0306 ,  B60C17/04 ,  B60C17/06

Abstract: A tire/wheel assembly includes a wheel having a rim, a pneumatic tire fitted to the rim of the wheel and a run-flat support member, the pneumatic tire having a tread surface and a hollow space, the tread surface having circumferential grooves extending in a circumferential direction of the tire, the run-flat support member being disposed in the hollow space of the pneumatic tire and having an annular shell and elastic rings, the annular shell comprising a support surface formed radially outward having a convexly curved surface portion with an annular apical line or face and two leg portions formed radially inward, the elastic rings supporting the two leg portions on the rim. The apical line or apical face of the convexly curved surface portion is offset in a direction of a center axis of rotation of the wheel so as not to be located in a position corresponding to the circumferential grooves when viewed from a radial direction of the wheel.

Abstract translation: 轮胎/车轮组件包括具有轮辋的车轮，装配到车轮边缘的充气轮胎和平坦的支撑构件，所述充气轮胎具有胎面表面和中空空间，胎面表面具有延伸在 轮胎的圆周方向，所述平坦的支撑构件设置在所述充气轮胎的中空空间中并且具有环形壳和弹性环，所述环形壳包括径向向外形成的支撑表面，所述支撑表面具有凸形弯曲表面部分，所述凸形曲面部分具有 环形顶端线或面和两个径向向内形成的腿部，弹性环支撑在轮辋上的两个腿部。 凸曲面部的顶端面或顶端面在车轮的旋转中心轴的方向上偏移，以便在从车轮的径向观察时不位于对应于周向槽的位置。

公开(公告)号：US20060005613A1

公开(公告)日：2006-01-12

申请号：US11172926

申请日：2005-07-05

Applicant: Masatoshi Kuwajima ,  Toshihiko Okano

Inventor： Masatoshi Kuwajima ,  Toshihiko Okano

IPC: G01N19/02

CPC classification number: G01N19/02

Abstract: A method of evaluating contact characteristics of an object having a roughness includes setting geometric shape data for the roughness; creating a roughness model and a structure model that comes in contact with the roughness, based on the geometric shape data set; making the roughness model and the structure model come in contact with each other; acquiring a physical amount occurring at least one of a contact region of the roughness model and a contact region of the structure model; and obtaining an evaluation value for evaluating a real contact state in the contact region between the roughness model and the structure model, from the physical amount acquired.

Abstract translation: 评估具有粗糙度的物体的接触特性的方法包括设置粗糙度的几何形状数据; 基于几何形状数据集创建粗糙度模型和与粗糙度接触的结构模型; 使粗糙度模型和结构模型相互接触; 获取出现所述粗糙度模型的接触区域和所述结构模型的接触区域中的至少一个的物理量; 以及从获得的物理量获得用于评估粗糙度模型和结构模型之间的接触区域中的实际接触状态的评估值。

公开(公告)号：US06983780B2

公开(公告)日：2006-01-10

申请号：US10617768

申请日：2003-07-14

Applicant: Akira Kuramori ,  Atsushi Tanno ,  Masatoshi Kuwajima

Inventor： Akira Kuramori ,  Atsushi Tanno ,  Masatoshi Kuwajima

IPC: B60C17/02 ,  B60C5/16

CPC classification number: B60C17/04 ,  B60C17/009 ,  B60C17/043 ,  B60C17/06

Abstract: The present inventions are a run-flat tire and a tire/wheel assembly in which the workability of the tire-to-rim fit has been improved while including a core-type run-flat support member. The tire/wheel assembly is formed by fitting a pneumatic tire into a wheel rim. In the tire/wheel assembly, the run-flat support member constituted of a circular shell and elastic rings is inserted into a cavity of the pneumatic tire, in which the circular shell has a support surface thereof extended toward the periphery of the tire and leg portions along each end of the support surface, and the elastic rings are attached to the leg portions of the circular shell. Meanwhile, stages extending in a tire circumferential direction are formed on the inner walls of a pair of right and left beads in the pneumatic tire, and the elastic rings are locked into the stages.

Abstract translation: 本发明是一种轮胎 - 车轮组件，其中轮胎 - 轮辋配合的可加工性已经提高，同时包括芯型平坦的支撑构件。 轮胎/车轮组件通过将充气轮胎装配到轮辋中而形成。 在轮胎/车轮组件中，由圆形壳体和弹性环构成的行平面支撑构件插入到充气轮胎的空腔中，其中圆形壳体具有朝向轮胎和腿部的周边延伸的支撑表面 沿着支撑表面的每个端部的部分，并且弹性环附接到圆形壳体的腿部。 同时，在充气轮胎中的一对右右珠的内壁上形成有沿轮胎周向延伸的阶段，并且弹性环被锁定到阶段中。

公开(公告)号：US20120090750A1

公开(公告)日：2012-04-19

申请号：US13379928

申请日：2010-06-07

Applicant: Masatoshi Kuwajima

Inventor： Masatoshi Kuwajima

IPC: B60C11/12

CPC classification number: B60C11/032 ,  B60C11/12 ,  B60C11/1218 ,  B60C11/1222 ,  B60C11/1281 ,  B60C2011/1213 ,  B60C2011/1254 ,  Y10S152/03

Abstract: A pneumatic tire including a closed sipe in a land portion 3 formed in a tread surface, provided with at least three cuts extending in a radiation direction from an imaginary axis that extends in a depth direction of the land portion, and that terminate in the land portion. The cuts are provided with a spiral-like twist in the depth direction, centered on the imaginary axis, and a twist angle thereof is not less than 10° and not more than 135°. Additionally, a length in the radiation direction of the cuts or a width of the cuts is formed larger at a tread surface side than at a bottom surface side.

Abstract translation: 一种充气轮胎，其包括形成在胎面表面中的陆部3中的封闭刀槽花纹，所述充气轮胎设置有至少三个切口，所述至少三个切口沿着在所述陆部的深度方向上延伸的假想轴沿辐射方向延伸，并且终止于所述陆地 一部分。 切口在假想轴上以深度方向设置有螺旋状扭曲，扭转角不小于10°而不大于135°。 此外，切口的辐射方向上的长度或切口的宽度在胎面表面侧比在底面侧形成得更大。