公开(公告)号：US06202724B1

公开(公告)日：2001-03-20

申请号：US09130879

申请日：1998-08-07

Applicant: Masato Hiruma ,  Akio Kusano ,  Yasuyo Fujita

Inventor： Masato Hiruma ,  Akio Kusano ,  Yasuyo Fujita

IPC: B60C100

CPC classification number: B60C19/08 ,  B60C11/18 ,  B60C19/082 ,  Y10S152/02

Abstract: A pneumatic tire comprising a silica-rich compound tread provided with an antistatic conductive rubber layer has improved safty based on durability and extrusion productivity. In this tire, the silica-rich compound rubber layer is divided at at least one portion in a width directional of the tire by a conductive rubber layer extended in a circumferential direction substantially over the whole thickness of said rubber layer. In this case, a thickness direction distance a in a width directional section of said rubber layer and an edge face length b of a divisional rubber layer consisting of said conductive rubber layer in a width directional section satisfy a relation formulated by the following expression, a

Abstract translation: 包含具有抗静电导电橡胶层的富二氧化硅复合胎面的充气轮胎基于耐久性和挤出生产率提高了安全性。 在该轮胎中，二氧化硅的复合橡胶层在轮胎的宽度方向的至少一部分上被沿圆周方向延伸的导电橡胶层基本上在所述橡胶层的整个厚度上分开。 在这种情况下，所述橡胶层的宽度方向部分的厚度方向距离a和由所述导电橡胶层构成的分割橡胶层的宽度方向部分的边缘面长度b满足由以下表达式所表示的关系：a

公开(公告)号：USD339776S

公开(公告)日：1993-09-28

申请号：US688204

申请日：1991-04-18

Applicant: Toshio Hayakawa ,  Yasuo Himuro ,  Masato Hiruma

Designer： Toshio Hayakawa ,  Yasuo Himuro ,  Masato Hiruma

公开(公告)号：US06367525B1

公开(公告)日：2002-04-09

申请号：US09129037

申请日：1998-08-04

Applicant: Masato Hiruma ,  Gen Suzuki ,  Akio Kusano ,  Hiroshi Mouri

Inventor： Masato Hiruma ,  Gen Suzuki ,  Akio Kusano ,  Hiroshi Mouri

IPC: B29D3052

CPC classification number: B60C11/18 ,  B29D2030/526 ,  B60C19/08 ,  Y10S152/02

Abstract: A pneumatic tire comprising a tread portion which comprises a surface rubber layer which is disposed in an outer portion of the tread portion in the radial direction of said tire and has a specific resistance of 108 &OHgr;·cm or more after curing by vulcanization and conductive rubber members which comprise a rubber composition having a specific resistance of 106 &OHgr;·cm or less and replace a portion of the surface rubber layer, wherein the conductive rubber members are disposed in portions of the surface rubber layer extending from the outer surface to the inner surface in the radial direction of said tire discontinuously in the circumferential direction of said tire at the outer surface of the surface rubber layer in the radial direction of said tire, is provided. The pneumatic tire shows not only an excellent effect of static discharge but also excellent durability.

Abstract translation: 一种充气轮胎，其特征在于，包括胎面部，该胎面部包括表面橡胶层，所述表面橡胶层设置在所述轮胎的径向方向的胎面部的外侧部分中，并且通过硫化和导电橡胶固化后的电阻率为10Ω/ 构成电阻率为10Ω·欧姆·厘米或更小的橡胶组合物的部件，并且替换表面橡胶层的一部分，其中导电橡胶部件设置在表面橡胶层的从外表面延伸到内表面的部分 在所述轮胎的径向方向上在所述轮胎的径向方向上在所述轮胎的所述表面橡胶层的外表面处在所述轮胎的径向方向上不连续地沿所述轮胎的圆周方向。 充气轮胎不仅显示出静电放电的优异效果，而且显示出优异的耐久性。

公开(公告)号：US4726407A

公开(公告)日：1988-02-23

申请号：US25031

申请日：1987-03-12

Applicant: Toshio Hayakawa ,  Toru Tsuda ,  Masahiro Takayama ,  Masato Hiruma

Inventor： Toshio Hayakawa ,  Toru Tsuda ,  Masahiro Takayama ,  Masato Hiruma

IPC: B60C11/03 ,  B60C11/04 ,  B60C11/11 ,  B60C11/113 ,  B60C11/117

CPC classification number: B60C11/0302 ,  B60C11/0306 ,  B60C2011/0374 ,  B60C2011/0383 ,  B60C2011/0388 ,  Y10S152/03

Abstract: A pneumatic radial tire for high-speed running vehicles has a directional tread pattern defined by one or two relatively wide circumferential grooves arranged in the central region and plural slant grooves arranged in each side region of the tread, and an aspect ratio of not more than 0.8. In this tire, the slant grooves are arranged in a herringbone form with respect to the equator without communicating with the circumferential groove, each of which extending from an initial end to a terminal end and being a folded line at a folding point corresponding to 0.3-0.45 times of the tread width that an inclination angle .alpha. of line segment inward from the folding point is 40.degree.-85.degree. with respect to the meridian of the tire and an inclination angle .beta. of line segment outward from the folding point is smaller than the inclination angle .alpha. and 0.degree.-50.degree. with respect to the meridian of the tire.

Abstract translation: 一种用于高速行驶车辆的充气子午线轮胎具有定向胎面花纹，其定义为一个或两个布置在中心区域中的相对较宽的周向槽和布置在胎面的每个侧面区域中的多个倾斜槽，并且纵横比不大于 0.8。 在该轮胎中，斜槽相对于赤道以人字形布置，而不与周向槽连通，每个周向槽从初始端延伸到终端，并且在折叠点处相当于0.3- 从折叠点向内的线段的倾斜角α相对于轮胎的子午线为40°-85°的胎面宽度的0.45倍，并且从折叠点向外的线段的倾斜角β小于 倾角α和0°-50°相对于轮胎的子午线。