公开(公告)号：JPH04169306A

公开(公告)日：1992-06-17

申请号：JP29701290

申请日：1990-11-01

Applicant: BRIDGESTONE CORP

Inventor： SHIMADA NORIHIRO

IPC: B60C5/14 ,  B60C9/06 ,  B60C11/00

Abstract: PURPOSE:To inhibit the generation of air stagnant part in the vicinity of a tread center part, and to inhibit the expansion of the air stagnant part by providing a hole of small diameter in the vicinity of the tread center part from a tread surface to the inside of the radius direction of the tire. CONSTITUTION:A vent hole 16 is provided as a hole of small diameter on a center (tire equator surface) 14 of a tread 12 of a bias tubeless tire 10 for guide wheel of a new traffic vehicle, to the inside of the tire along the radius, at an equal interval in the circumferential direction of the tire. When the filled air passes through an inner liner 22 as well as an outermost layer 18A of a carcass ply 18, and thus the air reaches the tread center part, the air is exhausted to the outside of the tire through the vent hole 16. The generation of an air stagnant part in the vicinity of the tread center part 14 can thus be inhibited. And even when an air stagnant part is generated on the tread center part 14, the expansion of the air stagnant part can be inhibited.

公开(公告)号：JPS641608A

公开(公告)日：1989-01-06

申请号：JP15539787

申请日：1987-06-24

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO ,  MIYAMOTO KENJI ,  SHIMADA NORIHIRO

IPC: B60C9/08 ,  B60C11/00 ,  B60C11/01

Abstract: PURPOSE:To improve resistance to partial wear, of the title tire for a bus and the like, by forming a shoulder portion outer contour, axially outside from a specific point on a tread, in a specific negative radius of curvature so as to form a shoulder falling to a specific correcting value. CONSTITUTION:The inner/outer contours of a mould on a tread center portion, away from a tread center CL to a point of 0.64-0.85 times the half width of a tread, is formed at a positive radius of curvature R1 having its center of curvature on the tire axis side, and the outer contour of a shoulder outside of this point is formed at a negative radius of curvature R2, 1-30 times a tread width. Furthermore, a tread shoulder portion falling correcting value H2 is set at 0.05-0.04 times the head H1 at a single tread crown radius of curvature. Hence the charge of operating internal pressure will cause the whole area of the outer contour to expand outwardly in the axial direction beyond the tread outer contour and its ground contacting shape in loading to be nearly rectangular. This constitution improve resistance to partial wear.

公开(公告)号：JP2011168218A

公开(公告)日：2011-09-01

申请号：JP2010035256

申请日：2010-02-19

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： SHIMADA NORIHIRO

IPC: B60C13/00 ,  B60C23/18

Abstract: PROBLEM TO BE SOLVED: To provide a tire for an automated guideway transit vehicle capable of restraining damage by heat from an auxiliary wheel.
SOLUTION: This subway vehicle 1 is arranged on the vehicle installing outside of the auxiliary wheel 3 guided by a rail 4 for guiding a course of the subway vehicle 1 being the automated guideway transit vehicle, and is used for travel of the subway vehicle 1. An air flow guide 9 slantingly extending at a predetermined angle θ to the tire radial direction and formed in a projecting shape outside in the tread width direction, is arranged on a side surface 7 of at least the vehicle installing inside.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于能够抑制来自辅助轮的热量的损伤的自动导轨转接车辆的轮胎。

解决方案：该地铁车辆1布置在由轨道4引导的辅助轮3外部安装的车辆上，用于引导作为自动导轨过境车辆的地铁车辆1的路线，并且用于地铁的行驶 至少安装在车内的车辆的侧面7上配置有以轮胎径向预定角度θ倾斜延伸并形成在胎面宽度方向外侧的突出形状的气流引导件9。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010159030A

公开(公告)日：2010-07-22

申请号：JP2009003960

申请日：2009-01-09

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： SHIMADA NORIHIRO

IPC: B60C11/00 ,  B60C5/14 ,  B60C9/06

Abstract: PROBLEM TO BE SOLVED: To provide a guide wheel tire for a monorail and subway capable of the suppressing permeation of the internal pressure of a tube into the tire and greatly extending a maintenance interval.
SOLUTION: In a pneumatic bias tire 10 with the center of a bias carcass 1 formed into a toroidal shape and a breaker 4 and tread rubber 3 arranged outside thereof in the radial direction, venting holes 7 penetrated from the outer peripheral surface of the tread rubber 3 to the outer peripheral surface of the breaker 4 are staggeringly formed in the peripheral direction.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于单轨和地铁的导轮轮胎，其能够抑制管内部压力渗透到轮胎中并大大延长维护间隔。 解决方案：在偏心胎体1的中心形成为环形形状的气动偏置轮胎10和沿径向设置在其外侧的破碎机4和胎面橡胶3的情况下，从外周面 断路器4的外周面的胎面橡胶3在圆周方向上交错地形成。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008143264A

公开(公告)日：2008-06-26

申请号：JP2006330798

申请日：2006-12-07

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： SHIMADA NORIHIRO

IPC: B60C9/06

Abstract: PROBLEM TO BE SOLVED: To provide a bias tire capable of suppressing separation generated between a carcass layer and a tread part.
SOLUTION: The bias tire 1 comprises a pair of bead parts 3 including a bead core 3a and a bead filler 3b, a carcass layer 5 in which the cord counts as the number of carcass cords built in a rubber is identical or gradually reduced to the outer side in the tire radial direction from an inner side of the tire radial direction, and a tread part 9 which is arranged on the outer side in the tire radial direction of the carcass layer 5 to directly cover the carcass layer 5. The carcass layer comprises at least an inner carcass layer 5A consisting of at least two or more even-number layers with the inner carcass cords being intersected with each other, and an outer most carcass layer 5C consisting of at least two or more even-number layers with the outermost carcass cords having the same thickness as that of the inner carcass cord being intersected with each other, and the counts of the outermost cords which is the number of the outermost carcass cords built in the rubber are ≤14 pieces/25 mm.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制胎体层与胎面部之间产生的分离的偏置轮胎。 解决方案：偏置轮胎1包括一对胎圈部件3，胎圈部件3包括胎圈芯3a和胎圈填料3b，胎体层5，其中帘线计数为橡胶内衬的胎体帘线数量相同或逐渐地 从轮胎径向内侧向轮胎径向外侧设置胎圈部9，胎面部9配置在胎体层5的轮胎径向外侧，直接覆盖胎体层5。 胎体层至少包括由至少两个或更多个偶数层组成的内部胎体层5A，内部胎体帘线彼此相交，以及最外侧的胎体层5C，其由至少两个或更多个偶数 具有与内侧胎体帘线的厚度相同的最外侧胎体帘线的层相互相交，作为橡胶内置的最外侧胎体帘线的数量的最外侧帘线的计数为≤14个 / 25毫米。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JPS62265004A

公开(公告)日：1987-11-17

申请号：JP10861986

申请日：1986-05-14

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO ,  MIYAMOTO KENJI ,  SHIMADA NORIHIRO

IPC: B60C9/20 ,  B60C9/00 ,  B60C9/18 ,  B60C9/22

Abstract: PURPOSE:To prevent a metal cord from being broken and filaments from being broken into pieces, by specifying strength of the metal cords to be buried into a main rubber layer and rubber penetration property respectively in the captioned tire for an electric-train or the like. CONSTITUTION:A metal cord 5 to be buried into a main rubber layer 6 is constructed to a material having strength of 200kg or more per filament. Further, a rubber penetration ratio Sr/S of the cross-sectional area Sr of a rubber R penetrated into an area A to a total cavity cross-sectional area S in a polygon area encircled by the polygonal line shown by a solid line which connects the enters of the filaments 7 at the outermost position excluding the filaments 7 is specified to 30% or more. With this arrangement, the metal cord is prevented from being broken and the filaments of the broken cord from being taken to pieces.

公开(公告)号：JP2012148623A

公开(公告)日：2012-08-09

申请号：JP2011007346

申请日：2011-01-17

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： SHIMADA NORIHIRO

IPC: B60C15/06

Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic tire sufficiently improved in the durability of a bead part by reducing distortion generated between a hard bead filler and a carcass body portion.SOLUTION: The pneumatic tire has a bead filler 15 composed of two kinds of hard and soft rubbers, a radial directional outer end 15c of the hard bead filler 15a of high hardness extended from a bead core 3 is disposed in the inner side in a tire radial direction from a carcass folding end 11c, a radial directional outer end 15d of the soft bead filler 15b of low hardness is disposed in the outer side in the tire radial direction from the carcass folding end 11c, and a rubber layer 17 having the same physical properties as the ply rubber is disposed between a carcass body part 11a and the hard bead filler 15a and between the radial directional outer end 15c and the radial directional inner end of the hard bead filler.

Abstract translation: 要解决的问题：通过减少硬珠填料和胎体主体部分之间产生的变形，提供充分提高胎圈部的耐久性的充气轮胎。 解决方案：充气轮胎具有由两种硬和软橡胶构成的胎圈填料15，从胎圈芯3延伸的高硬度的硬质胎圈填料15a的径向外端15c设置在内侧 在胎体折叠端11c的轮胎径向方向上，从胎体折叠端11c的轮胎径向外侧设置有低硬度的软质胎圈填充物15b的径向外侧端部15d，橡胶层17 具有与帘布层橡胶相同的物理性质设置在胎体主体部分11a和硬质胎圈填料15a之间以及径向定向外端15c和硬质胎圈填料的径向方向内端之间。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2009001173A

公开(公告)日：2009-01-08

申请号：JP2007164304

申请日：2007-06-21

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： SHIMADA NORIHIRO

IPC: B60C11/00 ,  B60C9/18 ,  B60C11/04 ,  B60C11/13

Abstract: PROBLEM TO BE SOLVED: To improve traction performance and braking performance while maintaining durability of a pneumatic tire 1 for an automated guideway transit vehicle. SOLUTION: Each main groove 27 extending in a zigzag shape in the tire circumference Dc is formed in each shoulder region of a tread part 15. Each shoulder rib 33 extending in the tire circumference Dc is partitioned by each main groove 27 and each tread end edge of the tread part 15. Each thin groove 39 extending in a zigzag shape is formed in the inward part in the tire width direction Dw of each shoulder rib 33 so as to be in parallel along each main groove 27. The minimum distance k between each belt end edge of a belt 21C of the outermost layer and the groove bottom of each thin groove 39 is set to ≥5 mm. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了提高牵引性能和制动性能，同时保持用于自动导轨运输车辆的充气轮胎1的耐久性。 解决方案：在轮胎周边Dc中以锯齿形形状延伸的每个主槽27形成在胎面部15的每个胎肩区域中。在轮胎周边Dc中延伸的每个胎肩肋33被每个主槽27分隔，并且每个 每个胎肩肋33的轮胎宽度方向Dw的向内部分形成有沿着每个主槽27平行的每个形成为锯齿形状的每个细槽39。 最外层的带21C的每个带端边缘与每个细槽39的槽底之间的距离k设定为≥5mm。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009001171A

公开(公告)日：2009-01-08

申请号：JP2007164302

申请日：2007-06-21

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： SHIMADA NORIHIRO

IPC: B60C11/04 ,  B60C11/01 ,  B60C11/12 ,  B60C11/13

Abstract: PROBLEM TO BE SOLVED: To improve a wear-resistance lifetime of a pneumatic tire 1 for an automated guideway transit vehicle by sufficiently enhancing eccentric-wear resistance performance of the pneumatic tire 1 for an automated guideway transit vehicle. SOLUTION: A plurality of main grooves 5, 7 extending in the tire circumference C are formed in a tread 3. A plurality of ribs 9, 11, and 13 extending in the tire circumference C are partitioned along the tire in the width direction W by a plurality of the main grooves 5, 7 and both tread ends E. A plurality of transversely-extending open sipes 15 are provided in the tread 3 while being spaced apart at intervals in the tire circumference C. Each rib 9 (11, 13) is respectively divided into a plurality of split ribs 17 (19, 21) by a plurality of the open sipes 15 along in the tire circumferentice. Each thin groove 23 extending in the tire circumference C is provided in the inward part of each rib 13 in each shoulder region. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：通过充分提高用于自动导轨运输车辆的充气轮胎1的偏心耐磨性能，提高自动导轨车辆用充气轮胎1的耐磨寿命。 解决方案：在胎面3中形成有在轮胎周围C上延伸的多个主槽5,7。在轮胎周围C上延伸的多个肋9,11和13沿着轮胎宽度分隔开 方向W由多个主槽5,7和两个胎面E组成。多个横向延伸的开口刀槽花纹15设置在胎面3中，同时在轮胎周边C中间隔开。每个肋9（11 ，13）分别通过多个开口刀槽花纹15沿着轮胎外周分割成多个分割肋17（19,21）。 在每个肩部区域中的每个肋13的内侧设置有在轮胎周边C上延伸的每个细槽23。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2003025815A

公开(公告)日：2003-01-29

申请号：JP2001208878

申请日：2001-07-10

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： SHIMADA NORIHIRO

IPC: D07B1/06 ,  B60C9/06 ,  B60C15/04 ,  B60C15/06

CPC classification number: D07B1/062 ,  D07B2501/2053

Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic bias tire for heavy load in particular using a mono-strand bead as a bead and capable of efficiently suppressing the both of deformation of the bead shape in vulcanization molding and breaking of a ply cord in using a tire.
SOLUTION: This pneumatic bias tire is provided with paired beads 2 and a bias carcass 3 formed by stacking, at least, two plies 3a-3f, whose both ends are fixed to the beads 2 respectively and which are formed by covering an organic fiber cord with rubber, with mutual organic fiber cords crossing to each other. The bead 2 is the so-called, mono-strand dead with approximately polygonal cross section formed by spirally winding a wire 4 into a prescribed row and stage and is characterized in that, at least, a flipper 7 having the wire is disposed between the bead 2 and the bias carcass 2, covering at least a corner part 6 positioned inward in the tire diametrical direction of the bead 2.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供一种用于重负荷的气动偏置轮胎，特别是使用单股胎圈作为胎圈，并且能够有效地抑制硫化成型中的胎圈形状的变形和帘线帘线的断裂 胎。 解决方案：该气动偏置轮胎设置有成对的胎圈2和偏置胎体3，其通过层叠至少两个层3a-3f而形成，其两端分别固定到胎圈2并且通过覆盖有机纤维帘线 橡胶，相互有机纤维帘线相互交叉。 胎圈2是所谓的单股线，具有大致多边形的横截面，其通过将线4螺旋地卷绕到规定的行和台中而形成，其特征在于，至少具有导线的导板7设置在 胎圈2和偏心胎体2，至少覆盖位于胎圈2的轮胎径向内侧的角部6。