-
公开(公告)号：US20150158260A1
公开(公告)日：2015-06-11
申请号：US14413862
申请日：2013-06-06
发明人： Kei Kohara
IPC分类号： B29D30/12
CPC分类号： B29D30/12 , B29D30/0661
摘要： A core main body comprises first core segments having a small circumferential width and having both circumferential end surfaces as first butting surfaces, and second core segments having a large circumferential width and having both circumferential end surfaces as second butting surfaces, the core main body is formed into an annular shape by butting the circumferentially adjacent first and second butting surfaces against each other. The first butting surface comprises a parallel surface portion being parallel with a center plane in the circumferential width of the first core segment connected to radially outside of an outwardly inclined surface portion inclined so that the circumferential width increases toward the inside in a radial direction.
摘要翻译： 芯体主体包括具有小周向宽度的第一芯部段和具有作为第一对接表面的两个周向端面的第二芯部段和具有大圆周宽度并且具有两个周向端表面作为第二对接表面的第二芯部段，形成芯主体 通过将周向相邻的第一和第二对接表面彼此对接而成为环形。 所述第一对接面包括平行的表面部分，所述平行表面部分在所述第一芯部分的周向宽度上与中心平面平行，所述中心平面连接到倾斜的向外倾斜的表面部分的径向外侧，使得周向宽度在径向方向上朝内侧增加。
-
公开(公告)号：US09039400B2
公开(公告)日：2015-05-26
申请号：US14379153
申请日：2013-02-27
发明人： Kei Kohara
CPC分类号： B29D30/0661 , B29C33/02 , B29C33/38 , B29D30/0606 , B29D30/12 , B29K2995/0012 , B29L2030/00
摘要： A rigid core for forming a tire is configured so that the non-uniformity of the amount of thermal expansion of the core body is reduced to improve the quality of the tire. The core body comprises divided core pieces (10i , 10o) divided inward and outward in a tire radial direction at a tire radial position (P) including a maximum width position (P0) of the tire forming surface. Outward divided core pieces (10o) disposed outward in the tire radial direction than the maximum width position (P0) and inward divided core pieces (10i) disposed inward in the tire radial direction than the maximum width position (P0) are respectively formed of metal materials different from each other in coefficient of thermal expansion. The coefficient of thermal expansion of the inward divided core piece (10i) is higher than a coefficient of thermal expansion of the outward divided core piece (10o).
摘要翻译： 用于形成轮胎的刚性芯构造成使得芯体的热膨胀量的不均匀性降低，以提高轮胎的质量。 芯体包括在包括轮胎成形表面的最大宽度位置（P0）的轮胎径向位置（P）处沿轮胎径向向内和向外分开的分割铁心片（10i，10o）。 在轮胎径向外侧配置的外侧分割铁心片（10o）分别由金属制的最大宽度位置（P0）和向轮胎径向内侧分配的向内分割铁心片（10i）形成， 材料的热膨胀系数相互不同。 内侧分割铁芯片（10i）的热膨胀系数高于外侧分割铁心（100）的热膨胀系数。
-
公开(公告)号：US20150030711A1
公开(公告)日：2015-01-29
申请号：US14379142
申请日：2013-01-15
发明人： Kei Kohara
IPC分类号： B29D30/06
CPC分类号： B29D30/0661 , B29D30/12
摘要： Provided is a rigid core for forming a tire, configured so that the intrusion of rubber into a gap between core segments is prevented and so that the lowering of roundness of a core body s prevented. The core body comprises a plurality of circumferentially divided core segments. Both circumferential end surfaces of each of the core segments are used as mating surfaces , and the mating surfaces adjacent to each other in the circumferential direction are abutted against each other to form the core body. At least one of the mating surfaces adjacent to each other in the circumferential direction is formed as a stepped mating surface comprising a bordering surface region extending along an outer circumferential edge of the mating surface, and a recessed surface region surrounded by the bordering surface region and recessed in a step shape from the bordering surface region so that only the bordering surface region contacts with the adjacent mating surface.
摘要翻译： 提供一种用于形成轮胎的刚性芯，其被构造成防止橡胶侵入到芯部之间的间隙中，从而防止了芯体的圆度的降低。 芯体包括多个周向分开的芯部段。 每个芯段的两个周向端表面用作配合表面，并且在圆周方向上彼此相邻的配合表面彼此抵靠以形成芯体。 在圆周方向上彼此相邻的配合表面中的至少一个形成为阶梯状配合表面，其包括沿配合表面的外周缘延伸的边界表面区域和由边界表面区域包围的凹陷表面区域， 从边界表面区域以阶梯形状凹陷，使得仅边界表面区域与相邻配合表面接触。
-
4.发明授权公开(公告)号：US10981417B2
公开(公告)日：2021-04-20
申请号：US15552134
申请日：2016-03-07
发明人： Kei Kohara
摘要： A pneumatic tire 1 comprises a carcass 6 comprising at least one carcass ply 6A extending between bead portions 4 via sidewall portions 3 and a tread portion 2. The carcass ply 6A comprises strip-shaped ply pieces 11 longer in a tire radial direction than in a tire circumferential direction arranged circumferentially. Each of the ply pieces 11 comprises a plurality of carcass cords 12 arranged in parallel in the tire radial direction and at least partly overlapping each other with the ply pieces 11 circumferentially adjacent. At least one of the carcass cords 12 arranged in at least one of side edge portions 11e in the tire circumferential direction of each of the ply pieces 11 having a diameter (Ce) smaller than a diameter (Cc) of at least one of the carcass cords 12 arranged in a center portion 11c of each of the ply pieces 11.
-
公开(公告)号：US10112445B2
公开(公告)日：2018-10-30
申请号：US14785250
申请日：2014-03-11
发明人： Kei Kohara
摘要： Provided is a pneumatic tire which is configured so as to prevent carcass cords from biting into an inner liner, thereby improving the durability performance of the tire. A pneumatic tire (1) is provided with a carcass (6) which comprises, a carcass ply (11) extending from a tread (2) through side walls (3) to the bead cores (5) of bead sections (4), the bead cores (5) each including an inner core (14) and an outer core (15). The carcass, ply (11) is sandwiched between the inner cores (14) and the outer cores (15). Each of an inner core (14) and an outer core (15) includes a bead cord (16) which is wound at least one turn in the circumferential direction of the tire. Each of the bead cords (16) includes an outermost layer (18) formed by twisting filaments (17) together. In at least one bead section, the outermost layer (18) of the bead cord (16) of each of the inner core (14) and the outer core (15) is twisted in the direction which allows the carcass ply (11) to easily move to the outside in the radial direction of the tire from between the inner core (14) and the outer core (15).
-
公开(公告)号：US08757995B2
公开(公告)日：2014-06-24
申请号：US13888871
申请日：2013-05-07
发明人： Kei Kohara
IPC分类号： B29C33/10
CPC分类号： B29D30/0061 , B29C33/10 , B29D30/06 , B29D2030/0617 , B29L2030/00
摘要： A tire vulcanization mold comprises a mold body having an inner surface for molding a tire outer surface and at least one vent passage for the escape of gas in the mold during vulcanization, the vent passage with an inlet end and an outlet end, the inlet end being opened on the inner surface of the mold body, the outlet end communicating with an exterior of the mold body, wherein the vent passage communicates with the inner surface of the mold body at an angle of not less than 60 degrees, and less than 90 degrees with respect to a normal line perpendicular to the inner surface at the inlet end.
摘要翻译： 轮胎硫化模具包括具有用于模制轮胎外表面的内表面的模具主体和用于在硫化期间在模具中逸出气体的至少一个排气通道，具有入口端和出口端的排气通道，入口端 在模具体的内表面上开口，出口端与模具体的外部连通，其中排气通道以不小于60度的角度与模具主体的内表面连通，小于90度 相对于垂直于入口端的内表面的法线。
-
公开(公告)号：US11236223B2
公开(公告)日：2022-02-01
申请号：US16478233
申请日：2018-02-02
发明人： Hiroshi Ito , Sakae Okubo , Kei Kohara
摘要： The present invention provides an innerliner rubber composition having an excellent balance of sheet processability and air retention properties, and a pneumatic tire including the rubber composition. The present invention relates to an innerliner rubber composition, containing a rubber component; a mixture of a fatty acid metal salt and a fatty acid amide; an oil; and a C5 petroleum resin, the rubber component including, based on 100% by mass thereof, at least 70% by mass of a butyl-based rubber, the mixture being present in an amount of 0.8 to 3.2 parts by mass per 100 parts by mass of the rubber component, the mixture, the oil, and the C5 petroleum resin being present in a combined amount of 6.0 to 16.0 parts by mass per 100 parts by mass of the rubber component.
-
公开(公告)号：US09144947B2
公开(公告)日：2015-09-29
申请号：US14413862
申请日：2013-06-06
发明人： Kei Kohara
CPC分类号： B29D30/12 , B29D30/0661
摘要： A core main body comprises first core segments having a small circumferential width and having both circumferential end surfaces as first butting surfaces, and second core segments having a large circumferential width and having both circumferential end surfaces as second butting surfaces, the core main body is formed into an annular shape by butting the circumferentially adjacent first and second butting surfaces against each other. The first butting surface comprises a parallel surface portion being parallel with a center plane in the circumferential width of the first core segment connected to radially outside of an outwardly inclined surface portion inclined so that the circumferential width increases toward the inside in a radial direction.
摘要翻译： 芯体主体包括具有小圆周宽度的第一芯段和具有两个周向端面作为第一对接表面的第一芯段和具有大圆周宽度并且具有两个周向端表面作为第二对接表面的第二芯段，芯主体形成 通过将周向相邻的第一和第二对接表面彼此对接而成为环形。 所述第一对接面包括平行的表面部分，所述平行表面部分在所述第一芯部分的圆周宽度上与中心平面平行，所述中心平面连接到倾斜的向外倾斜的表面部分的径向外侧，使得周向宽度在径向方向上朝向内部增加。
-
公开(公告)号：US20150258862A1
公开(公告)日：2015-09-17
申请号：US14436758
申请日：2013-10-04
发明人： Kei Kohara
CPC分类号： B60C15/05 , B29D30/10 , B29D30/18 , B29D30/48 , B29D2030/487 , B60C5/12 , B60C9/02 , B60C15/0018 , B60C15/04 , B60C2009/0416 , B60C2015/044
摘要： A pneumatic tire to reduce separation of a carcass ply from inner and outer core pieces (5i, 5o) and improve steering stability. A radially inner end portion of the carcass ply is held between the inner and outer core pieces (5i, 5o) without turning-up around a bead core. The inner and outer core pieces (5i, 5o) are made of helical body of bead cord (10i, 10o) helically winding around a tire axis. In the inner core piece (5i), the final twisting direction of the bead cord (10i) is the same as the winding direction around the tire axis of the bead cord (10i) in side view from axial outward of the tire. In the outer core piece (5o), the final twisting direction of the bead cord (10o) is opposite to the winding direction of the bead cord (10o).
摘要翻译： 一种充气轮胎，用于减少胎体帘布层与内芯片和外芯片（5i，5o）的分离并提高操纵稳定性。 胎体帘布层的径向内端部保持在内芯片（5i，5i）与外芯片（5o）之间，而不会卷绕在胎圈芯上。 内芯片和外芯片（5i，5o）由围绕轮胎轴线螺旋缠绕的胎圈帘线（10i，10o）的螺旋体制成。 在内芯片（5i）中，胎圈帘线（10i）的最终扭转方向与轮胎轴向外侧的侧视轮胎帘线（10i）的轮胎轴线的缠绕方向相同。 在外芯片（5o）中，胎圈帘线（100）的最终扭转方向与胎圈帘线（10o）的缠绕方向相反。
-
公开(公告)号：US09039399B2
公开(公告)日：2015-05-26
申请号：US14379142
申请日：2013-01-15
发明人： Kei Kohara
CPC分类号： B29D30/0661 , B29D30/12
摘要： Provided is a rigid core for forming a tire, configured so that the intrusion of rubber into a gap between core segments is prevented and so that the lowering of roundness of a core body s prevented. The core body comprises a plurality of circumferentially divided core segments. Both circumferential end surfaces of each of the core segments are used as mating surfaces, and the mating surfaces adjacent to each other in the circumferential direction are abutted against each other to form the core body. At least one of the mating surfaces adjacent to each other in the circumferential direction is formed as a stepped mating surface comprising a bordering surface region extending along an outer circumferential edge of the mating surface, and a recessed surface region surrounded by the bordering surface region and recessed in a step shape from the bordering surface region so that only the bordering surface region contacts with the adjacent mating surface.
摘要翻译： 提供一种用于形成轮胎的刚性芯，其被构造成防止橡胶侵入到芯部之间的间隙中，从而防止了芯体的圆度的降低。 芯体包括多个周向分开的芯部段。 每个芯段的两个周向端表面用作配合表面，并且在圆周方向上彼此相邻的配合表面彼此抵靠以形成芯体。 在圆周方向上彼此相邻的配合表面中的至少一个形成为阶梯状配合表面，其包括沿配合表面的外周缘延伸的边界表面区域和由边界表面区域包围的凹陷表面区域， 从边界表面区域以阶梯形状凹陷，使得仅边界表面区域与相邻配合表面接触。
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.016 秒)
