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51. 发明专利

JPH0811509A PNEUMATIC RADIAL TIRE 失效
公开(公告)号：JPH0811509A
公开(公告)日：1996-01-16
申请号：JP15906995
申请日：1995-06-26
申请人： BRIDGESTONE CORP
发明人： TSURUTA MAKOTO
IPC分类号： B60C15/00 , B60C15/06
摘要： PURPOSE:To improve the durability of a bead part by forming the axial outer end part of a boundary surface of the hard rubber part and the soft rubber part of a stiffener between a carcass ply body and a return part in place for restraint of separation at the end part. CONSTITUTION:A textile chafer 7 which covers an end part 5 along a return part 3 is disposed at the outside in the tire axial direction of the return part 3 of a carcass ply 4, and a stiffener 10 is disposed just above a bead core 6 between the body 2 and the return part 3 of the carcass ply 4. The stiffener 10 is formed out of a hard rubber part 8 which consists of one type of rubber and whose Shore A hardness is 58 degree or less and a soft rubber part 9 which is positioned just above the hard rubber part and whose Shore A hardness is 55 degree or less. The tire axial outside end 14 of the boundary surface 12 of both rubber parts 8, 9 is positioned more outwards than the tire diametrical outer end 7a of the textile chafer 7. It is thus possible to restrain the textile chafer 7 from being separated and improve the durability of a bead part 11.

52. 发明专利

JPH0632122A PNEUMATIC TIRE 失效
公开(公告)号：JPH0632122A
公开(公告)日：1994-02-08
申请号：JP18681492
申请日：1992-07-14
申请人： BRIDGESTONE CORP
发明人： TSURUTA MAKOTO , IIDA HIROYUKI , UMEZAWA YUJIRO
IPC分类号： B60C15/00 , B60C13/02 , B60C15/06
摘要： PURPOSE:To reduce compression strain and shearing strain, and improve durability in a bead part by arranging a reinforcing layer formed by burying reinforcing fiber in an area from a position opposite to a bead up to exceeding a position opposite to the deepest part of a recessed part on the tire outside surface in the axial directional inside of a main body part. CONSTITUTION:A recessed part 36 is formed on the tire outside surface between the radial directional outside edge 20A of a folded part 20 of a carcass ply 16 and a maximum tire width position M on a sidewall of a pneumatic tire 10. A single reinforcing layer 40 formed by burying reinforcing fiber is arranged on the shaft directional inside of a main body part 18 of the carcass ply 16, and is set so that a radial directional outside edge part 40A of the reinforcing layer 40 exceeds a position opposite to the deepest part 36A of the recessed part 36, and is set so that a rotary shaft side edge part 40B of the reinforcing layer 40 reaches the vicinity of an edge part 38B of a steel reinforcing layer 38. In this way, compression strain can be reduced by intercepting internal stress being caused in the radial direction of the outside ply by means of the recessed part, and deterioration of bead rigidity caused by the recessed part can be also supplemented by arranging the reinforcing layer.

53. 发明专利

JPH0516618A BEAD STRUCTURE OF PNEUMATIC TIRE 失效
公开(公告)号：JPH0516618A
公开(公告)日：1993-01-26
申请号：JP20010791
申请日：1991-07-15
申请人： BRIDGESTONE CORP
发明人： IIDA HIROYUKI , NAKANO TATSURO , TSURUTA MAKOTO
IPC分类号： B60C15/00 , B60C15/06
摘要： PURPOSE:To prevent a separation of the outer side ply by composing the inner and the outer stiffeners with specific hardnesses of rubbers, and specifying the volume ratio of the outer stiffener to the whole stiffener body. CONSTITUTION:The positions of the outer side ply 10 far ten times of the diameter (d) of a cord buried in the outer side ply 10 from the outer end of its return part 6 from a bead 2 is made A, and far 30 times are made B. And the starting point of a straight line L passing the end 24 in the radius direction of the outer side ply 10 and square to the inner surface of a stiffener is made C, the position far 30d from the bead 2 from the C is made D, the position far 10d in the reverse direction from the C is made E, and the line combining the positions F and G between A and B, and D and E is made as a border surface X. By the border surface X, the stiffener is positioned into a rubber inner stiffener 21 of the Shore hardness 58 to 68 deg., and a rubber outer stiffener 22 of the Shore hardness less than 55 deg., and the volume ratio of the outer stiffener 21 is made 10% or more of the whole stiffener. Consequently, a separation of the outer side ply can be prevented without reducing the productive efficiency.

54. 发明专利

JPH04151309A PNEUMATIC TIRE 失效
公开(公告)号：JPH04151309A
公开(公告)日：1992-05-25
申请号：JP27667790
申请日：1990-10-16
申请人： BRIDGESTONE CORP
发明人： TSURUTA MAKOTO , IIDA HIROYUKI , KOBAYASHI YASUHIKO , KOSEKI HIROYUKI
IPC分类号： B60B21/10 , B60C13/00 , B60C13/02 , B60C15/00 , B60C15/02 , B60C15/024
摘要： PURPOSE:To improve durability while enhancing the peripheral rigidity at a bead portion by setting the peripheral width of a recess formed at a tire external surface at the specific rate of a peripheral pitch, and setting the shortest distance at the specific rate of a rim base diameter. CONSTITUTION:In a tire 1, a bead base portion 4 is inclined with a kept angle of about 15 degrees against a tire 1 rotary axis. Also, a carcass ply 12 is constituted with a main body portion 13 located on the bead 2 axial inside and turned-up portions 14 as the outer side ply located on the bead 2 axial outside. In addition, at the tire external surface 28, a plurality of recesses 30 which are peripherally separated and whose depth G is 1/10-1/2 of the tire thickness at a forming position, are formed. In this instance, given that the peripheral pitch of a recess 30 is P, the shortest distance between adjoining recesses 30 is B, and a value which is P minus B, is made to be the peripheral width of a recess 30, the peripheral width is set at 0.4-0.8 times the peripheral pitch P. Also, B is set at less than 0.06 times a rim base diameter D.

55. 发明专利

JP2012179971A Pneumatic tire 有权
标题翻译：气动轮胎
公开(公告)号：JP2012179971A
公开(公告)日：2012-09-20
申请号：JP2011042928
申请日：2011-02-28
申请人： Bridgestone Corp , 株式会社ブリヂストン
发明人： ONO TAKASHI , NAKADA HIROSHI , YOSHIKAWA YUSUKE , TSURUTA MAKOTO
IPC分类号： B60C9/22
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic radial tire capable of effectively preventing the occurrence of separation between belt layers.SOLUTION: The pneumatic tire is formed by arranging sequentially from the inside of the belt reinforcing layers 4 in the tire circumference which extend in the tread circumference inside tread rubber to the outside of the crown area of a toroidal carcass of which sides are wound and returned around bead cores and composed of reinforcing elements, and a belt 7 which is formed of two or more belt layers 5, 6 extending with belt layer cords intersecting mutually. In the pneumatic tire, the belt reinforcing layers 4 are formed of spirally wound structures of strips formed by coating one or more pieces of reinforcing elements 4a with rubber. When a strip width of the belt reinforcing layer 4 is represented as A, the maximum intersecting width of the belt layer cord of the belt 7 is set
摘要翻译：要解决的问题：提供一种能够有效地防止带束层之间发生分离的充气子午线轮胎。解决方案：充气轮胎通过从胎面橡胶中的胎面周向内延伸的胎圈加强层4的内侧顺序地设置在胎面侧面的环形胎体的胎冠区域的外侧，卷绕并返回围绕珠芯并且由增强元件组成，以及带7，其由两个或更多个带束层5,6形成，带5,6彼此相交地延伸。在充气轮胎中，带束层增强层4由螺旋卷绕的条带形成，通过用橡胶涂覆一个或多个增强元件4a形成。当带束层增强层4的带宽被表示为A时，带7的带束帘线的最大相交宽度被设定为（带束加强层-2A的宽度）。带束帘线的最大相交宽度的宽度中心与轮胎径向上的带束层增强层的宽度中心相对应。版权所有（C）2012，JPO＆INPIT

56. 发明专利

JP2012176681A Pneumatic radial tire 有权
标题翻译：气动辐射轮胎
公开(公告)号：JP2012176681A
公开(公告)日：2012-09-13
申请号：JP2011040456
申请日：2011-02-25
申请人： Bridgestone Corp , 株式会社ブリヂストン
发明人： ONO TAKASHI , NAKADA HIROSHI , YOSHIKAWA YUSUKE , TSURUTA MAKOTO
IPC分类号： B60C9/22 , B60C9/00
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic radial tire that largely improves the durability of a belt effectively by suppressing the generation of interlayer separation at a side edge position of a belt reinforcing layer and sufficiently preventing the fracture of a reinforcing element positioned at the side edge of the belt reinforcing layer regardless of the selection of a carcass line on a side of the tire.SOLUTION: At least one of the reinforcing elements of the belt reinforcing layer is formed by twisting a plurality of steel filaments. When a tensile modulus of the reinforcing element is equal to 10% of the tensile modulus at fracture, an elongation rate of the reinforcing element is set as A%. The reinforcing element is located at least from a position where filling to a normal internal pressure results in A% of a growth rate of a tire diameter to a range outside in a width direction at a cross section in a tire width direction.
摘要翻译：要解决的问题：提供一种充气子午线轮胎，其通过抑制在带束层增强层的侧边缘位置处的层间分离的产生而有效地大大提高带的耐久性，并充分地防止位于而不管轮胎侧面上的胎体线的选择如何。解决方案：带束增强层的至少一个增强元件通过扭转多根钢丝而形成。当增强元件的拉伸模量等于断裂时的拉伸模量的10％时，增强元件的伸长率设定为A％。增强元件至少从填充到正常的内部压力的位置定位，导致轮胎直径的增长率的A％在轮胎宽度方向上的横截面处的宽度方向外侧的范围。版权所有（C）2012，JPO＆INPIT

57. 发明专利

JP2009029382A Pneumatic tire 有权
标题翻译：气动轮胎
公开(公告)号：JP2009029382A
公开(公告)日：2009-02-12
申请号：JP2007198184
申请日：2007-07-30
申请人： Bridgestone Corp , 株式会社ブリヂストン
发明人： MIYASAKA ATSUSHI , TSURUTA MAKOTO , MAEHARA DAISUKE
IPC分类号： B60C13/00 , B60C17/00
摘要： PROBLEM TO BE SOLVED: To attain light weight and enhancement manufacturing property while maintaining cooling effect of a tire side part to a high degree.
SOLUTION: A plurality of turbulence flow generation protrusions 20 are provided on a surface of the tire side part 3. The respective turbulence flow generation protrusions 20 are extended along a tire radial direction and are formed intermittently (equal gap in a tire circumferential direction) along the tire circumferential direction. Height of an outer end part 20A in a tire radial direction of the turbulence flow generation protrusion 20 is lower than height of a central part in an extension direction of the turbulence flow generation protrusion 20, and is formed such that height is gradually reduced toward the end part such that it becomes the same height as the surface of the tire side part 3.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在保持轮胎侧部分的冷却效果的同时，实现轻量化和提高制造性能。解决方案：在轮胎侧部3的表面上设置有多个湍流产生突起20.各个湍流产生突起20沿轮胎径向延伸并且间歇地形成（轮胎周向上相等的间隙方向）。湍流产生突起20的轮胎径向外端部20A的高度比湍流产生突起20的延伸方向的中心部的高度低，并且形成为朝向端部，使得其与轮胎侧部3的表面成为相同的高度。版权所有（C）2009，JPO＆INPIT

58. 发明专利

JP2006205856A Pneumatic tire 有权
标题翻译：气动轮胎
公开(公告)号：JP2006205856A
公开(公告)日：2006-08-10
申请号：JP2005019332
申请日：2005-01-27
申请人： Bridgestone Corp , 株式会社ブリヂストン
发明人： TSURUTA MAKOTO
IPC分类号： B60C9/22 , B60C9/08 , B60C9/18
摘要： PROBLEM TO BE SOLVED: To effectively restrain layer-to-layer separation occurring between a belt layer and an outer end part in the cross direction of a belt reinforcing layer 31.
SOLUTION: Large circumferential direction tensile force is generated on the belt reinforcing layer 31 of a portion overlapped on a protruded part 39 as the protruded part 39 is pushed in to be flat by internal pressure filled though a part of a carcass layer 18 is bulged in a protruded shape toward the radial direction inside by arranging an interposing rubber layer 38 between the belt reinforcing layer 31 and the carcass layer 18, and consequently influenced by that, the circumferential direction tensile force in the neighborhood of a cross direction outer end of the belt reinforcing layer 31 is reduced.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：有效地抑制在带束层增强层31的交叉方向上的带束层与外端部之间发生的层间分离。解决方案：产生大的圆周方向拉伸力在通过胎体层18的一部分被填充的内部压力将突出部39推入平坦状态的部分的带束层增强层31上，朝向径向内侧凸出突出的形状在带束层增强层31和胎体层18之间布置插入橡胶层38，从而受到带束层增强层31的横向外端附近的周向拉伸力的影响。版权所有（C）2006，JPO＆NCIPI

59. 发明专利

JP2005162022A Pneumatic tire 有权
标题翻译：气动轮胎
公开(公告)号：JP2005162022A
公开(公告)日：2005-06-23
申请号：JP2003404283
申请日：2003-12-03
申请人： Bridgestone Corp , 株式会社ブリヂストン
发明人： TSURUTA MAKOTO
IPC分类号： B60C15/06
摘要： PROBLEM TO BE SOLVED: To effectively increase durability of a bead section by reducing crack progress rate along a steel cord while suppressing breakage of the steel cord in a reinforcing layer 29.
SOLUTION: When a value derived by dividing the radial distance L from a rim radial position S to the radial outer end 32a of the outside section 32 of the reinforcing layer 29 by the tire height H is set to B, assuming that the value F derived by dividing tolerant bending rigidity M of the reinforcing layer 29 by the square of the value B is 0.10 or more, the crack progressable distance can be increased while preventing the breakage of the buckling of the steel cord in the reinforcing layer 29. However, since the steel cord cannot follow along compressional deformation and deform when the value F exceeds 0.50, the value F is set 0.50 or less.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过减少沿着钢帘线的裂纹进展速度来有效地提高胎圈部的耐久性，同时抑制加强层29中钢帘线的破坏。解决方案：当通过将将轮胎高度H的加强层29的外侧部32的轮辋径向位置S的径向距离L设定为B，假设通过将加强层29的容许弯曲刚度M除以加强而得到的值F 值B的平方值为0.10以上的情况下，可以提高裂纹的进行距离，同时防止钢丝帘线在加强层29中的弯曲断裂。然而，由于钢丝绳不能沿着压缩变形而发生，当值F超过0.50时变形，值F设定为0.50以下。版权所有（C）2005，JPO＆NCIPI

60. 发明专利

JP2005161964A Run-flat tire 有权
标题翻译：跑平轮胎
公开(公告)号：JP2005161964A
公开(公告)日：2005-06-23
申请号：JP2003402820
申请日：2003-12-02
申请人： Bridgestone Corp , 株式会社ブリヂストン
发明人： TSURUTA MAKOTO
IPC分类号： B60C17/00 , B60C9/20 , B60C13/00
摘要： PROBLEM TO BE SOLVED: To provide a side reinforcement run-flat tire where both ride quality and run flat durability are compatibly established at a high level by arranging a reinforcing cord layer suitably. SOLUTION: The side reinforcement run-flat tire 1 comprises a first reinforcing cord layer 13 arranged outside a ply body section 6 of a carcass 9 in the tire width direction and a second reinforcing cord layer 14 arranged between the ply body section 6 of the carcass 9 and the reinforcing cord layer 13. The outer edge 15 of the first reinforcing cord layer 13 lies outside in the tire radial direction more than the tire radial outer edge 16 of the second reinforcing cord layer 14 and the tire maximum width position 17. The tire radial outer edge 16 of the second reinforcing cord layer 14 is mounted to a standard rim and located outside in the tire radial direction more than a rim flange. The angles of a cord forming the first reinforcing cord layer 13 and a cord forming the second reinforcing cord layer 14 with respect to the tire circumferential direction are within ranges of 20-40° and 60-90°, respectively. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种通过适当地布置加强帘线层，能够在高水平上兼容地建立乘坐质量和平坦耐久性的侧面加强漏气保用轮胎。解决方案：侧面加强漏气保用轮胎1包括布置在轮胎宽度方向上的胎体9的帘布层主体部分6外侧的第一加强帘线层13和布置在帘布层主体部分6之间的第二加强帘线层14 胎体9和加强帘线层13.第一加强帘线层13的外边缘15位于比第二加强帘线层14的轮胎径向外边缘16更大的轮胎径向外侧，并且轮胎最大宽度位置第二加强帘线层14的轮胎径向外边缘16安装到标准轮缘上并且位于比轮辋凸缘更大的轮胎径向外侧。形成第一加强帘线层13的帘线和形成第二加强帘线层14的帘线相对于轮胎周向的角度分别在20-40°和60-90°的范围内。版权所有（C）2005，JPO＆NCIPI

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