公开(公告)号：US08844590B2

公开(公告)日：2014-09-30

申请号：US13509937

申请日：2010-11-10

Applicant: Yukihiro Kiwaki

Inventor： Yukihiro Kiwaki

IPC: B60C11/03 ,  B60C11/113 ,  B60C11/13

CPC classification number: B60C11/0302 ,  B60C11/13 ,  B60C2011/0341 ,  B60C2011/0369 ,  B60C2011/0374

Abstract: In a tire 1, a central land portion row 20C and intermediate land portion rows 20M are formed by center-side main grooves 10C. A projecting portion 50 projecting outwardly in a tire radial direction TR from a groove bottom surface 11 of the center-side main groove 10C is provided in the central groove 10C. The projecting portion 50 is located on an extension line L1 extending in an extending direction of lug grooves 30M, and extends outwardly in the tread width direction TW from a sidewall 21 of the central land portion row 20C. An inner end height H1 of the projecting portion 50 located on an innermost side thereof in the tread width direction TW and continuous to the central land portion row 20C is greater than an outer end height H2 of the projecting portion 50 located on an outermost side thereof in the tread width direction TW.

Abstract translation: 在轮胎1中，中央陆部行20C和中间陆部行20M由中央侧主槽10C形成。 从中央侧主槽10C的槽底表面11向轮胎径向TR突出的突出部分50设置在中心槽10C中。 突出部分50位于沿横向花纹沟30M的延伸方向延伸的延伸线L1上，并且从胎冠宽度方向TW向外延伸，从中央陆地部分行20C的侧壁21延伸。 位于其胎面宽度方向TW的最内侧的突出部50的内端高度H1与中心接地部行20C连续的内端高度H1大于位于其最外侧的突出部50的外端高度H2 在胎面宽度方向TW上。

公开(公告)号：US20140216617A1

公开(公告)日：2014-08-07

申请号：US14343621

申请日：2012-09-07

Applicant: Yukihiro Kiwaki

Inventor： Yukihiro Kiwaki

IPC: B60C11/13

CPC classification number: B60C11/13 ,  B60C11/042 ,  B60C11/1307 ,  B60C11/1353 ,  B60C2011/0341 ,  B60C2011/0344 ,  B60C2011/0346 ,  B60C2011/0348 ,  B60C2011/133

Abstract: A tire provided with a plurality of land portions formed by a main groove extending along a tire circumferential direction, wherein the main groove is formed with one intra-groove recessed in a tire inner direction from a surface of the main groove, the intra-groove comprises: a first circumferential groove portion extending along the tire circumferential direction on the first groove wall; a first inclined portion extending from the first groove wall toward the second groove wall on a groove bottom of the main groove; a second circumferential groove portion extending along the tire circumferential direction on the second groove wall; and a second inclined portion extending from the second groove wall toward the first groove wall on the groove bottom of the main groove.

Abstract translation: 一种轮胎，其具有由沿着轮胎周向延伸的主槽形成的多个陆部，其中，所述主槽形成有从所述主槽的表面沿轮胎内侧凹入的一个槽，所述槽 包括：在所述第一槽壁上沿轮胎周向延伸的第一周向槽部; 在所述主槽的槽底部从所述第一槽壁朝向所述第二槽壁延伸的第一倾斜部; 在第二槽壁上沿着轮胎周向延伸的第二周向槽部; 以及从所述第二槽壁朝向所述主槽的槽底部的所述第一槽壁延伸的第二倾斜部。

公开(公告)号：US20120273106A1

公开(公告)日：2012-11-01

申请号：US13510472

申请日：2010-10-21

Applicant: Yukihiro Kiwaki ,  Takaaki Kojima

Inventor： Yukihiro Kiwaki ,  Takaaki Kojima

IPC: B60C11/117 ,  B60C11/11

CPC classification number: B60C11/0302 ,  B60C11/0306 ,  B60C11/12 ,  B60C11/13 ,  B60C11/1353 ,  B60C2011/0388 ,  B60C2011/133 ,  B60C2011/1361 ,  Y10S152/901

Abstract: A tire 1 comprises rib-shaped land portions 20 extending in a tire circumferential direction TC and has a circumferential groove 30 adjacent to the land portions 20 and extending in the tire circumferential direction TC. Tread contact surfaces 10 of the land portions 20 form smooth surfaces with no gap when a normal load is applied and the tread contact surfaces are in contact with a road surface. The circumferential groove 30 includes a shallow groove portion 40 extending in the tread-width direction TW, and a deep groove portion 50 adjacent to the shallow groove portion 40 in the tire circumferential direction and extending in the tread-width direction. A deep groove portion 50 is recessed more inwardly in a tire radial direction TR than the shallow groove portion 40 with a groove bottom 40c of the shallow groove portion 40 being an upper end of the deep groove portion 50.

Abstract translation: 轮胎1包括沿轮胎周向TC延伸的肋状陆部20，并且具有与陆部20相邻并沿轮胎周向TC延伸的周向槽30。 当施加正常载荷并且胎面接触表面与路面接触时，陆部20的胎面接触表面10形成没有间隙的光滑表面。 周向槽30包括沿胎面宽度方向TW延伸的浅槽部40和在轮胎周向上与浅槽部40相邻的深沟槽部50，并且在胎面宽度方向上延伸。 深沟槽部分50比在浅槽部分40的轮胎径向TR更向内凹入，浅槽部分40的槽底40c是深槽部分50的上端。

公开(公告)号：US20120211135A1

公开(公告)日：2012-08-23

申请号：US13393115

申请日：2010-01-28

Applicant: Takaaki Kojima ,  Yukihiro Kiwaki

Inventor： Takaaki Kojima ,  Yukihiro Kiwaki

IPC: B60C11/01

CPC classification number: B60C11/01 ,  B60C13/001 ,  B60C2011/1361

Abstract: A pneumatic tire (1) comprises a tread (50), side walls (60), and buttress portions (70). In a cross-section of the pneumatic tire (1) in the tread width direction (TW), if the point at which a first curved line (R1) which follows the curvature of the surface of the tread (50) and a second curved line (R2) which follows the curvature of the surface of a buttress portion (70) intersect is defined as an imaginary point (IP) and also if the point at which a straight line (L) passing through the imaginary point (IP) and substantially perpendicular to the carcass (20) intersects the surface of the pneumatic tire (1) is defined as an intersection point (NP), the pneumatic tire (1) has a recessed shoulder region (US) including the intersection point (NP) and having a predetermined width. The recessed shoulder region (US) is provided with recesses (80) recessed from the surface of the pneumatic tire (1) and also with a surface portion (90) in which no recess (80) is formed. The recessed shoulder region (US) extends in the tire circumference direction (TC).

Abstract translation: 充气轮胎（1）包括胎面（50），侧壁（60）和支撑部（70）。 在胎面宽度方向（TW）的充气轮胎（1）的横截面中，如果与胎面（50）的表面的曲率相邻的第一曲线（R1）的点和第二弯曲 沿着支撑部分（70）的表面的曲率相交的线（R2）被定义为假想点（IP），并且如果通过虚拟点（IP）的直线（L）和 基本上垂直于与充气轮胎（1）的表面相交的胎体（20）被定义为交点（NP），充气轮胎（1）具有包括交点（NP）和 具有预定的宽度。 凹入的肩部区域（US）设置有从充气轮胎（1）的表面凹陷的凹部（80），并且还具有形成有凹部（80）的表面部分（90）。 凹陷的肩部区域（US）在轮胎周向（TC）上延伸。

公开(公告)号：USD656893S1

公开(公告)日：2012-04-03

申请号：US29368246

申请日：2010-08-20

Applicant: Yukihiro Kiwaki

Designer： Yukihiro Kiwaki

公开(公告)号：US20120018068A1

公开(公告)日：2012-01-26

申请号：US13148418

申请日：2010-02-09

Applicant: Yukihiro Kiwaki ,  Shungo Fujita ,  Takaaki Kojima ,  Kenjiro Yamaya

Inventor： Yukihiro Kiwaki ,  Shungo Fujita ,  Takaaki Kojima ,  Kenjiro Yamaya

IPC: B60C11/13

CPC classification number: B60C11/1353 ,  B60C11/0302 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/04 ,  B60C11/042 ,  B60C2011/0344 ,  B60C2011/0346 ,  B60C2011/1361

Abstract: A pneumatic tire which comprises a land portion (10) and a land portion (20). A main groove (50) extending along the tire circumferential direction is formed between the land portion (10) and the land portion (20). The land portion (10) comprises a groove wall (10a) that forms the main groove (50). The land portion (20) comprises a groove wall (20a) that forms the main groove (50). The groove wall (10a) and the groove wall (20a) are serpentine along the tire circumferential direction (R) when seen from a plane of the tread surface, and the groove width of the main groove (50) in the tread width direction (WTR) varies in a predetermined repetition interval (λ) along the tire circumferential direction. The ratio of the minimum width (WMIN) of the groove to the maximum width (WMAX) of the groove satisfies a relation of 35%≦WMIN/WMAX≦85%.

Abstract translation: 一种充气轮胎，其包括陆部（10）和陆部（20）。 在陆部（10）和陆部（20）之间形成沿着轮胎周向延伸的主槽（50）。 陆部（10）包括形成主槽（50）的槽壁（10a）。 陆部（20）包括形成主槽（50）的槽壁（20a）。 当从胎面表面的平面观察时，槽壁（10a）和槽壁（20a）沿着轮胎周向（R）是蛇形的，并且主槽（50）在胎面宽度方向上的槽宽 WTR）沿着轮胎周向以预定的重复间隔（λ）变化。 槽的最小宽度（WMIN）与槽的最大宽度（WMAX）的比率满足35％＆lt; 1lE; WMIN / WMAX＆nlE; 85％的关系。

公开(公告)号：US08020595B2

公开(公告)日：2011-09-20

申请号：US11791768

申请日：2005-11-30

Applicant: Yukihiro Kiwaki ,  Ryoichi Watabe ,  Kenichi Shibata ,  Kazuyoshi Tagawa

Inventor： Yukihiro Kiwaki ,  Ryoichi Watabe ,  Kenichi Shibata ,  Kazuyoshi Tagawa

IPC: B60C11/12

CPC classification number: B60C11/12 ,  B60C11/0302 ,  B60C2011/1213 ,  B60C2011/1231 ,  B60C2011/1245 ,  B60C2011/1277 ,  Y10S152/03

Abstract: A plurality of shallow grooves which are shallower than a sipe are formed on land sections formed on treads of a pneumatic tire. The shallow grooves are configured so that a total sectional area of the shallow grooves per unit area in a cross section in a tire width direction in at least one of tread end areas arranged at end sides of the tread surface in the tire width direction or land end areas arranged at portions adjacent to a drain main groove on the land sections becomes larger than a total sectional area of the shallow grooves per unit on the other areas.

Abstract translation: 在充气轮胎的胎面上形成的陆部上形成有比刀槽花纹浅的多个浅槽。 浅沟槽被构造成使得在布置在轮胎宽度方向上的胎面表面的端侧的至少一个胎面端区域中，在轮胎宽度方向上的横截面中的每单位面积的浅槽的总截面积 在陆部上与排水主槽相邻的部位配置的端部区域大于其他区域的每单位的浅槽的总截面积。

公开(公告)号：USD631820S1

公开(公告)日：2011-02-01

申请号：US29344712

申请日：2009-10-02

Applicant: Yukihiro Kiwaki

Designer： Yukihiro Kiwaki

公开(公告)号：US20100224297A1

公开(公告)日：2010-09-09

申请号：US12279961

申请日：2007-02-20

Applicant: Yukihiro Kiwaki ,  Ryoichi Watabe

Inventor： Yukihiro Kiwaki ,  Ryoichi Watabe

IPC: B60C11/12 ,  B60C11/117

CPC classification number: B60C11/12 ,  B60C11/11 ,  B60C11/1218 ,  B60C2011/1213 ,  Y10S152/03 ,  Y10S152/902

Abstract: A pneumatic tire according to the present invention includes blocks on its tread which are segmented by plural circumferential grooves 3 extending along a tire circumferential direction and plural lateral grooves 5 extending along a tread width direction. Circumferential sipes extending along the tire circumferential direction are provided in the blocks. Inside circumferential sipes extend straight along a tire radial direction and outside circumferential sipes extend along the tire radial direction in zigzag patterns. According to the present invention, a handling performance, especially, a cornering performance can be improved regardless of road surface conditions.

Abstract translation: 根据本发明的充气轮胎在其胎面上包括由沿着轮胎周向延伸的多个周向槽3分割的块和沿胎面宽度方向延伸的多个横向槽5。 在该块中设置有沿轮胎周向延伸的周向刀槽花纹。 内圆周刀槽花纹沿着轮胎径向直线延伸，外周刀槽花纹以轮辋形状沿轮胎径向延伸。 根据本发明，无论路面条件如何，都能够提高处理性能，特别是转弯性能。

公开(公告)号：USD561683S1

公开(公告)日：2008-02-12

申请号：US29265189

申请日：2006-08-28

Applicant: Yukihiro Kiwaki

Designer： Yukihiro Kiwaki