公开(公告)号：US08584721B2

公开(公告)日：2013-11-19

申请号：US10532424

申请日：2003-11-20

Applicant: Kensaku Fujii ,  Takehiko Murata

Inventor： Kensaku Fujii ,  Takehiko Murata

IPC: B60C11/117 ,  B60C11/24

CPC classification number: B60C11/24

Abstract: A tire having a rotation timing indication hole of the invention has a rotation timing indication hole comprising a multi-step hole provided in a tire tread, and respective steps of the hole have different contours from each other. Since the contour of the hole changes when the tire is worn, the rotation timing of the tire can be recognized.

Abstract translation: 具有本发明的旋转定时指示孔的轮胎具有旋转定时指示孔，该旋转定时指示孔包括设置在轮胎胎面中的多台阶孔，并且孔的各个台阶彼此具有不同的轮廓。 由于当轮胎磨损时孔的轮廓变化，因此可以识别轮胎的旋转正时。

公开(公告)号：US08555940B2

公开(公告)日：2013-10-15

申请号：US12681537

申请日：2008-09-30

Applicant: Takehiko Murata

Inventor： Takehiko Murata

IPC: B60C11/13

CPC classification number: B60C11/1369 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/0309 ,  B60C11/033 ,  B60C11/1323 ,  B60C11/1392 ,  B60C2011/0381 ,  B60C2011/0383

Abstract: A pneumatic tire having on-snow performance improved by increasing traction performance on snow-covered road with maintaining dry grip performance high, and comprising tread surface 2 having at least one circumferential main groove 3 in an outer region 2o facing outward of a vehicle, the circumferential main groove 3 being a straight groove wherein ridge lines 21 at which groove wall surfaces 20 intersect with the tread surface 2 extend straight, each groove wall surface 20 comprising a gently-inclined upper wall surface 20U extending from the ridge line 21 at an angle θ1 of 40 to 60° with respect to a normal line to tread surface 2 and a steeply-inclined lower wall surface 20L extending to groove bottom 22 at an angle θ2 smaller than the angle θ1, and the lower wall surface 20L including projections 23 which are disposed at intervals in the circumferential direction and have a triangular cross section with slope surface 23S extending from lower end Ue of the upper wall surface 20U to groove bottom 22 at an angle θ3 which is not greater than the angle θ1 but is greater than the angle θ2.

Abstract translation: 具有雪覆盖性能的充气轮胎通过在雪覆盖的道路上增加牵引性能而得到改善，并且保持高的干抓地性能，并且包括具有至少一个周向主槽3的胎面表面2，所述胎面表面2在外部区域2o中面向车辆外侧， 周向主槽3是直槽，其中槽壁表面20与胎面表面2相交的脊线21直线延伸，每个槽壁表面20包括从脊线21以一定角度延伸的缓慢倾斜的上壁表面20U θ1相对于胎面表面2的法线为40至60°，以及以小于角度θ1的角度θ延伸到槽底部22的陡峭倾斜的下壁表面20L，并且下壁表面20L包括突起23 在圆周方向上间隔设置，并且具有从上壁su的下端Ue延伸的倾斜面23S的三角形截面 表面20U以不大于角度θ1但大于角度θ2的角度θ3到凹槽底部22。

公开(公告)号：USD646626S1

公开(公告)日：2011-10-11

申请号：US29392933

申请日：2011-05-27

Applicant: Takehiko Murata

Designer： Takehiko Murata

公开(公告)号：USD559168S1

公开(公告)日：2008-01-08

申请号：US29271395

申请日：2007-01-18

Applicant: Takehiko Murata

Designer： Takehiko Murata

公开(公告)号：US07178570B2

公开(公告)日：2007-02-20

申请号：US10751412

申请日：2004-01-06

Applicant: Takehiko Murata

Inventor： Takehiko Murata

IPC: B60C11/03 ,  B60C11/13

CPC classification number: B60C11/0302 ,  B60C11/0309 ,  B60C11/13 ,  B60C2011/0341 ,  B60C2011/0374 ,  B60C2011/0388

Abstract: A pneumatic tire is provided in the tread portion with circumferential grooves, main oblique grooves and auxiliary oblique grooves. The circumferential grooves include: a pair of axially outer grooves disposed one on each side of the tire equator; and at least one axially inner groove between the axially outer grooves, so as to divide the tread portion into at least four circumferential regions including: a pair of axially inner regions between the axially outer grooves and said at least one axially inner groove; and a pair of axially outer regions axially outside the axially outer grooves. The axially inner regions have an axial width L1 of from 0.15 to 0.25 times the critical tread width TW1. The main oblique groove extends across one of the axially inner regions so that the axially outer end is connected with the adjacent axially outer circumferential groove and the axially inner end is connected with the adjacent axially inner groove. The main oblique groove has an inclination angle θ1 of from 45 to 90 degrees at the axially outer end thereof, and an inclination angle θ2 at the axially inner end thereof which is less than the inclination angle θ1, when measured with respect to the tire circumferential direction. The auxiliary oblique grooves are arranged alternately with the main oblique grooves, and each extends from the adjacent axially outer circumferential groove to one of the axially adjacent main oblique grooves.

Abstract translation: 在胎面部分设置有周向槽，主斜槽和辅助斜槽的充气轮胎。 周向槽包括：一对轴向外槽，其设置在轮胎赤道的每一侧上; 以及在所述轴向外部凹槽之间的至少一个轴向内部凹槽，以便将所述胎面部分分成至少四个周向区域，所述至少四个周向区域包括：在所述轴向外部凹槽和所述至少一个轴向内部凹槽之间的一对轴向内部区域; 以及一对轴向外部区域，其轴向外侧凹槽的外侧。 轴向内部区域的轴向宽度L 1为临界胎面宽度TW 1的0.15至0.25倍。 主斜槽延伸穿过轴向内部区域中的一个，使得轴向外端与相邻的轴向外周向凹槽连接，并且轴向内端与相邻的轴向内部凹槽连接。 主斜槽在其轴向外端具有45至90度的倾斜角θ1和在其轴向内端处的倾斜角θ2小于倾斜角θ1，当相对于 轮胎周向。 辅助倾斜槽与主斜槽交替布置，并且从相邻的轴向外周槽延伸到轴向相邻的主斜槽之一。

公开(公告)号：US20070000590A1

公开(公告)日：2007-01-04

申请号：US11414299

申请日：2006-05-01

Applicant: Takehiko Murata

Inventor： Takehiko Murata

IPC: B60C11/03

CPC classification number: B60C11/13 ,  B60C11/0083 ,  B60C11/0304 ,  B60C11/0332 ,  B60C11/1369 ,  B60C2011/0388

Abstract: A pneumatic tire comprises a tread portion provided with a nonlinear rib having an amplitude having a center in the tire axial direction. In a normally loaded condition of the tire, the tread portion has an outside tread edge and an inside tread edge when the camber angle of the tire is 0 degrees. In the normally loaded condition, when the a camber angle of 4 degrees is given to the tire to inline towards the outside tread edge, a foot print shape of the tire has a maximum circumferential length at an axial position MC which is off the tire equator towards the outside tread edge. The nonlinear rib is positioned off the tire equator towards the outside tread edge such that the axial position MC lies within the amplitude of the nonlinear rib, and one of the edges of the nonlinear rib on the outside tread edge side is chamfered.

Abstract translation: 充气轮胎包括设置有具有在轮胎轴向方向上具有中心的振幅的非线性肋的胎面部。 在轮胎的正常加载状态下，当轮胎的外倾角为0度时，胎面部分具有外侧胎面边缘和内部胎面边缘。 在正常加载状态下，当轮胎向外胎面边缘呈现4度的外倾角时，轮胎的脚印形状在轮胎赤道处的轴向位置MC处具有最大周长 朝向外侧胎边。 非线性肋从轮胎赤道面向外侧胎面边缘定位，使得轴向位置MC位于非线性肋的振幅范围内，并且外侧胎边侧的非线性肋的边缘之一被倒角。

公开(公告)号：US20050269003A1

公开(公告)日：2005-12-08

申请号：US10532424

申请日：2003-11-20

Applicant: Kensaku Fujii ,  Takehiko Murata

Inventor： Kensaku Fujii ,  Takehiko Murata

IPC: B60C11/24 ,  B60C11/117 ,  G01M17/02

CPC classification number: B60C11/24

Abstract: A tire having a rotation timing indication hole of the invention has a rotation timing indication hole comprising a multi-step hole provided in a tire tread, and respective steps of the hole have different contours from each other. Since the contour of the hole changes when the tire is worn, the rotation timing of the tire can be recognized.

Abstract translation: 具有本发明的旋转定时指示孔的轮胎具有旋转定时指示孔，该旋转定时指示孔包括设置在轮胎胎面中的多台阶孔，并且孔的各个台阶彼此具有不同的轮廓。 由于当轮胎磨损时孔的轮廓变化，因此可以识别轮胎的旋转正时。

公开(公告)号：USD647033S1

公开(公告)日：2011-10-18

申请号：US29392942

申请日：2011-05-27

Applicant: Takehiko Murata ,  Ryo Oba

Designer： Takehiko Murata ,  Ryo Oba

公开(公告)号：US20100212795A1

公开(公告)日：2010-08-26

申请号：US12681537

申请日：2008-09-30

Applicant: Takehiko Murata

Inventor： Takehiko Murata

IPC: B60C11/117

CPC classification number: B60C11/1369 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/0309 ,  B60C11/033 ,  B60C11/1323 ,  B60C11/1392 ,  B60C2011/0381 ,  B60C2011/0383

Abstract: A pneumatic tire having on-snow performance improved by increasing traction performance on snow-covered road with maintaining dry grip performance high, and comprising tread surface 2 having at least one circumferential main groove 3 in an outer region 2o facing outward of a vehicle, the circumferential main groove 3 being a straight groove wherein ridge lines 21 at which groove wall surfaces 20 intersect with the tread surface 2 extend straight, each groove wall surface 20 comprising a gently-inclined upper wall surface 20U extending from the ridge line 21 at an angle θ1 of 40 to 60° with respect to a normal line to tread surface 2 and a steeply-inclined lower wall surface 20L extending to groove bottom 22 at an angle θ2 smaller than the angle θ1, and the lower wall surface 20L including projections 23 which are disposed at intervals in the circumferential direction and have a triangular cross section with slope surface 23S extending from lower end Ue of the upper wall surface 20U to groove bottom 22 at an angle θ3 which is not greater than the angle θ1 but is greater than the angle θ2.

Abstract translation: 具有雪覆盖性能的充气轮胎通过在雪覆盖的道路上增加牵引性能而得到改善，并且保持高的干抓地性能，并且包括具有至少一个周向主槽3的胎面表面2，所述胎面表面2在外部区域2o中面向车辆外侧， 周向主槽3是直槽，其中槽壁表面20与胎面表面2相交的脊线21直线延伸，每个槽壁表面20包括从脊线21以一定角度延伸的缓慢倾斜的上壁表面20U ＆amp; t;相对于与胎面表面2的法线相比为40至60°的1;和以角度θ延伸到槽底部22的陡峭倾斜的下壁表面20L; 2小于角度＆amp; 1;以及下壁 表面20L包括突起23，它们沿圆周方向间隔设置并且具有三角形横截面，斜面23S从斜坡的下端Ue延伸 r壁表面20U以一定角度θ与凹槽底部22相交; 3不大于角度＆amp;θ; 1但大于角度＆amp;θ; 2。

公开(公告)号：US20100200134A1

公开(公告)日：2010-08-12

申请号：US12671187

申请日：2008-08-01

Applicant: Takehiko Murata

Inventor： Takehiko Murata

IPC: B60C11/03

CPC classification number: B60C11/0304 ,  B60C11/0306 ,  B60C11/0309 ,  B60C11/0332 ,  B60C11/1323 ,  B60C11/1369 ,  B60C11/1392 ,  B60C2011/0369 ,  B60C2011/0381 ,  B60C2011/0383

Abstract: To enhance uneven wear resistance with achieving higher levels of dry grip performance and wet performance, a tread surface 2 is provided with one circumferential main groove 3 in an outer region 2o thereof directed outward of a vehicle and with first and second circumferential main grooves 4 and 5 in an inner region 2i thereof directed inward of the vehicle, a central region Rc between the circumferential main grooves 3 and 4 is formed into a rib 10 extending continuously in the circumferential direction, an outer shoulder region Ro between the circumferential main groove 3 and TEo is formed into a row of outer blocks 12 defined by inclined main grooves 6, and the outer blocks 12 are provided with inclined sub-grooves 13 having an inclination direction different from that of the inclined main grooves 6, thereby dividing each of the outer blocks 12 into a first block portion 12A on a tire equator side and a second block portion 12B on a ground contact edge side.

Abstract translation: 为了提高不均匀的耐磨性，通过实现更高水平的干抓地性能和湿润性能，胎面表面2在其指向车辆外侧的外部区域2o中设置有一个周向主槽3，并且具有第一和第二周向主槽4和 5在其内部区域2i中指向车辆内侧，周向主槽3和4之间的中心区域Rc形成为沿圆周方向连续延伸的肋10，在周向主槽3和 TEo形成为由倾斜主槽6限定的一排外部块12，并且外部块12设置有倾斜的副槽13，其倾斜方向与倾斜主槽6的倾斜方向不同，从而将每个外部块 块12插入轮胎赤道侧的第一块部12A和接地边缘侧的第二块部12B。