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：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：US08210221B2

公开(公告)日：2012-07-03

申请号：US12279961

申请日：2007-02-20

Applicant: Yukihiro Kiwaki ,  Ryoichi Watabe

Inventor： Yukihiro Kiwaki ,  Ryoichi Watabe

IPC: B60C11/12

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：US09688101B2

公开(公告)日：2017-06-27

申请号：US14236702

申请日：2012-07-31

Applicant: Yukihiro Kiwaki

Inventor： Yukihiro Kiwaki

IPC: B60C11/01 ,  B60C13/00 ,  B60C11/13

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

Abstract: This tire has a buttress section to which a plurality of depressions (100) have been formed along the tire peripheral direction (DC). The depressions (100) have: a first outer edge (110) that bulges inward in the tread width direction (DT); and a second outer edge (120) that is continuous with the first outer edge (110) and that bulges outward in the tread width direction (DT) with respect to the first outer edge (110). The distance between the deepest section (150) of the depressions (100) and the ground-contact end of the tread varies along the tire peripheral direction (DC).

公开(公告)号：US09649888B2

公开(公告)日：2017-05-16

申请号：US14234817

申请日：2012-07-27

Applicant: Yukihiro Kiwaki ,  Keiichi Kato

Inventor： Yukihiro Kiwaki ,  Keiichi Kato

IPC: B60C11/13 ,  B60C11/04 ,  B60C11/03

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

Abstract: A tire wherein a first bulge part and a second bulge part are formed in a circumferential direction groove. The first bulge part has a narrow-tip shape such that, in the tire tread plan view, the size in the tread width direction diminishes along a first direction in the tire circumferential direction. The second bulge part has a narrow-tip shape such that, in the tire tread plan view, the size in the tread width direction diminishes along a second direction opposite to the first direction in the tire circumferential direction. A plurality of first bulge parts and second bulge parts are provided at predetermined intervals in the tire circumferential direction. A groove part which extends in the tire circumferential direction is provided between the first bulge part and the second bulge part which opposes the first bulge part in the tread width direction.

公开(公告)号：US09221304B2

公开(公告)日：2015-12-29

申请号：US13579773

申请日：2011-02-18

Applicant: Yukihiro Kiwaki

Inventor： Yukihiro Kiwaki

IPC: B60C11/13 ,  B60C11/03 ,  B60C11/04 ,  B60C11/12

CPC classification number: B60C11/0309 ,  B60C11/0302 ,  B60C11/0306 ,  B60C11/125 ,  B60C11/1353 ,  B60C2011/0341 ,  B60C2011/0344 ,  B60C2011/0348 ,  B60C2011/0351 ,  B60C2011/0381 ,  B60C2011/1254 ,  B60C2011/133

Abstract: An intra-groove groove 310,330 is formed in circumferential groove 31,33 which is formed in a pneumatic tire 1, the intra-groove groove 310,330 is recessed farther inward in a tire radial direction TR than the circumferential groove 31,33. The intra-groove groove 310,330 includes a high-angle groove section 311,331 in which an angle θ1 formed between a straight line L1 and the intra-groove groove 310,330 is equal to or more than a predetermined angle, and a low-angle groove section 312,332 in which an angle θ2 formed between the straight line L1 and the intra-groove groove 310,330 is smaller than the predetermined angle. The high-angle groove section 311,331 is positioned closer to an intra-groove center line DCL than the low-angle groove section 312,332. A width W1 of the high-angle groove section 311, 331 is wider than a width W2 of the low-angle groove section 312, 332.

Abstract translation: 在形成于充气轮胎1的周向槽31,33中形成有槽内槽310,330，槽内槽310,330在轮胎径向方向TR比内周侧槽31,33更向内侧凹陷。 槽内沟槽310,330包括高角度槽部311,331，其中形成在直线L1和槽槽310,330之间的角度＆amp; 1; 1等于或大于预定角度，以及小角度槽 其中形成在直线L1和槽槽310,330之间的角度和角度2小于预定角度。 高角度槽部311,331位于比低角度槽部312,332更靠近槽内中心线DCL的位置。 高角度槽部311,331的宽度W1比低角度槽部312,332的宽度W2宽。

公开(公告)号：USD715728S1

公开(公告)日：2014-10-21

申请号：US29447871

申请日：2013-03-07

Applicant: Keiichi Kato ,  Yukihiro Kiwaki

Designer： Keiichi Kato ,  Yukihiro Kiwaki

公开(公告)号：US08534334B2

公开(公告)日：2013-09-17

申请号：US13321787

申请日：2009-11-24

Applicant: Yukihiro Kiwaki

Inventor： Yukihiro Kiwaki

IPC: B60C11/12 ,  B60C11/13

CPC classification number: B60C11/0323 ,  B60C11/0304 ,  B60C11/13 ,  B60C11/1376 ,  B60C11/1392 ,  B60C2011/0381

Abstract: A pneumatic tire (10) is provided with air chambers which have recessed portions (221), and also with constriction grooves which communicate with the air chambers and a circumferential groove (21), and the air chambers and the constriction grooves are formed in a rib-shaped land portion of the tire. The depth (DP1) of a recessed portion (221) measured from a land portion (211) making contact with the road surface is deeper at one end of the air chamber in the tire circumference direction than the other end of the air chamber. The height of the recessed portion (221) from the bottom surface (222) thereof to the ground contact surface varies in the circumferential direction of the tire. The volume of the space formed by a constriction groove and the road surface is less than the volume of the space of the air chamber formed by the recessed portion (221) and the road surface. The air chamber has a tapered shape in which the width of the air chamber in the tread width direction is reduced from the other end of the air chamber toward said end of the air chamber.

Abstract translation: 充气轮胎（10）设置有具有凹部（221）的空气室，并且还具有与气室连通的收缩槽和周向槽（21），并且空气室和收缩槽形成为 轮胎的肋状陆部。 与空气室的另一端相比，从空气室的与路面接触的陆部（211）测得的凹部（221）的深度（DP1）比轮胎圆周方向的一端更深。 凹部221的从底面222到接地面的高度在轮胎的周向上变化。 由收缩槽和路面形成的空间的体积小于由凹部（221）和路面形成的空气室的空间的体积。 空气室具有锥形形状，其中空气室在胎面宽度方向上的宽度从空气室的另一端朝向空气室的端部减小。

公开(公告)号：US20110290391A1

公开(公告)日：2011-12-01

申请号：US13148222

申请日：2010-02-10

Applicant: Yukihiro Kiwaki

Inventor： Yukihiro Kiwaki

IPC: B60C11/12

CPC classification number: B60C11/0304 ,  B60C11/0302 ,  B60C11/0306 ,  B60C11/0309 ,  B60C11/032 ,  B60C11/12 ,  B60C11/1236 ,  B60C2011/0348 ,  B60C2011/0381

Abstract: Provision of a pneumatic tire with further enhanced low noise performance during running. Plural land portion rows are formed in a tread section (16) by forming circumferential direction main groove(s) extending along the tire circumferential direction. A fine-grooved-and-siped rib (34) configuring one of the land portion rows is configured with a fine groove (36) extending along the tire circumferential direction, a projecting sipe (38) projecting out from the fine groove (36) towards the side of a tire equatorial plane (CL) and open to a circumferential direction main groove (22E); and a plain rib portion (40) adjacent to the fine groove (36) on the vehicle mounting outside (SE), the plain rib portion (40) configured with a circular shaped peripheral face across the entire face on a ground contact side.

Abstract translation: 提供充气轮胎，在跑步过程中进一步提高噪音性能。 通过形成沿着轮胎周向延伸的圆周方向主槽，在胎面部（16）上形成有多个陆部列。 构成陆部列之一的细沟槽肋（34）具有沿着轮胎周向延伸的细槽（36），从细槽（36）突出的突出刀槽花纹（38） 朝向轮胎赤道平面（CL）的侧面，并向周向主槽（22E）开口; 以及与车辆安装外侧（SE）上的细槽（36）相邻的平坦肋部（40），平面肋部（40）在地面接触侧的整个面上构成圆形的周面。

公开(公告)号：USD646221S1

公开(公告)日：2011-10-04

申请号：US29343983

申请日：2009-09-22

Applicant: Yukihiro Kiwaki

Designer： Yukihiro Kiwaki