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1. 发明专利

ES2237140T3 PROCEDIMIENTO DE PREDICCION DEL COMPORTAMIENTO DE UN NEUMATICO. 未知
公开(公告)号：ES2237140T3
公开(公告)日：2005-07-16
申请号：ES99940700
申请日：1999-09-07
申请人： BRIDGESTONE CORP
发明人： SETA EISUKE
IPC分类号： B60C3/00 , B60C3/04 , B60C11/00 , B60C11/03 , B60C19/00 , G01M17/02 , G06F17/50 , B29C33/02 , B29C35/02 , B29D30/06
摘要： Procedimiento para el diseño de un neumático que comprende las etapas siguientes: (1) determinar un modelo de neumático que comprende por lo menos la forma de la sección transversal del neumático incluyendo la estructura interna y que presenta una configuración de dibujo a la cual puede inducirse una deformación por al menos uno de entre el contacto con el suelo y la rodadura, un modelo de fluido que se llena parcial o totalmente con un fluido y que entra en contacto con por lo menos una parte del modelo de neumático, una función objetivo que representa una cantidad física para la evaluación del comportamiento del neumático, una variable de diseño para la determinación de la forma de la sección transversal del neumático, una estructura del neumático, o una configuración del dibujo, y una condición restrictiva para condicionar por lo menos una de entre la forma de la sección transversal del neumático, la estructura del neumático, la configuración del dibujo, la cantidad física para la evaluación del comportamiento, y el tamaño del neumático; (2) estimar el comportamiento del neumático sobre la base de la cantidad física que se produce por lo menos en uno de entre el modelo del neumático y el modelo de fluido por lo menos en uno de entre un estado de deformación del modelo de neumático y un estado de seudoflujo del modelo de fluido; (3) determinar un valor de variable de diseño que proporciona el valor óptimo de la función objetivo al tiempo que satisface el comportamiento estimado del neumático y la condición restrictiva; y (4) diseñar el neumático sobre la base de la variable de diseño que proporciona el valor óptimo de la función objetivo.

2. 发明专利

DE69924464T2 未知
公开(公告)号：DE69924464T2
公开(公告)日：2006-03-16
申请号：DE69924464
申请日：1999-09-07
申请人： BRIDGESTONE CORP
发明人： SETA EISUKE
IPC分类号： G01M17/02 , B29C33/02 , B29C35/02 , B29D30/06 , B60C3/00 , B60C3/04 , B60C11/00 , B60C11/03 , B60C19/00 , G06F17/50
摘要： A fluid simulation comprising the steps of: (a) determining a tire model having a pattern configuration to which deformation can be imparted by at least one of ground contacting and rolling, and a fluid model which is partially or wholly filled with a fluid and which comes into contact with at least a portion of the tire model; (b) executing deformation calculation of the tire model; (c) executing fluid calculation of the fluid model; and (d) identifying a boundary surface between the tire model after the deformation calculation in step (b) and the fluid model after the fluid calculation in step (c), imparting a boundary condition concerning the identified boundary surface to the tire model and the fluid model, and repeating the calculations of step (b) and step (c) for the tire model after imparting the boundary condition and for the fluid model after imparting the boundary condition respectively until the fluid model assumes a state of pseudo flow.

3. 发明专利

DE69924464D1 未知
公开(公告)号：DE69924464D1
公开(公告)日：2005-05-04
申请号：DE69924464
申请日：1999-09-07
申请人： BRIDGESTONE CORP
发明人： SETA EISUKE
IPC分类号： B60C3/00 , B60C3/04 , B60C11/00 , B60C11/03 , B60C19/00 , G01M17/02 , G06F17/50 , B29C33/02 , B29C35/02 , B29D30/06
摘要： A fluid simulation comprising the steps of: (a) determining a tire model having a pattern configuration to which deformation can be imparted by at least one of ground contacting and rolling, and a fluid model which is partially or wholly filled with a fluid and which comes into contact with at least a portion of the tire model; (b) executing deformation calculation of the tire model; (c) executing fluid calculation of the fluid model; and (d) identifying a boundary surface between the tire model after the deformation calculation in step (b) and the fluid model after the fluid calculation in step (c), imparting a boundary condition concerning the identified boundary surface to the tire model and the fluid model, and repeating the calculations of step (b) and step (c) for the tire model after imparting the boundary condition and for the fluid model after imparting the boundary condition respectively until the fluid model assumes a state of pseudo flow.

4. 发明公开

EP2927024A4 PNEUMATIC TIRE 有权
公开(公告)号：EP2927024A4
公开(公告)日：2016-08-31
申请号：EP13858920
申请日：2013-11-28
申请人： BRIDGESTONE CORP
发明人： KATAYAMA SHINSAKU , SETA EISUKE , KAJI YOSHIO , KOIDE MASAFUMI , KURATA TAKAYUKI , KATSUNO HIROYUKI , AMANO MASAKAZU , TAKEI ATAKA
IPC分类号： B60C11/03 , B60C11/04 , B60C11/11 , B60C11/12 , B60C11/13
CPC分类号： B60C11/04 , B60C11/0302 , B60C11/0309 , B60C11/0332 , B60C11/11 , B60C11/12 , B60C11/1236 , B60C11/13 , B60C11/1369 , B60C2011/0341 , B60C2011/0344 , B60C2011/0346 , B60C2011/0365 , B60C2011/0369 , B60C2011/0393 , B60C2011/1213 , B60C2011/1268
摘要： A pneumatic tire (10) has, in the surface of the tread (11), a central circumferential groove (12) located at the center of the contact patch width and extending circumferentially around the tire, a plurality of longitudinal grooves (13 (13a, 13b)) formed on the axially outside of the central circumferential groove (12), lug grooves (15), and blocks (16 (16a to 16c)) defined by the central circumferential groove (12), the longitudinal grooves (13), and the lug grooves (15). Each of the lug grooves (15) is formed such that its width in the shoulder region is greater than its width in the central region, and the sum of the groove area of the central circumferential groove (12) and the groove area of the longitudinal grooves (13) is smaller than the area of the lug grooves (15). As a result, the pneumatic tire (10) not only secures the wet braking performance and wear resistance performance on paved roads, but also improves the acceleration performance and braking performance and the steering stability performance on snowy roads.

5. 发明公开

EP2913205A4 PNEUMATIC TIRE 失效
公开(公告)号：EP2913205A4
公开(公告)日：2016-07-13
申请号：EP13849621
申请日：2013-10-23
申请人： BRIDGESTONE CORP
发明人： KAJI YOSHIO , KATAYAMA SHINSAKU , SETA EISUKE , KURATA TAKAYUKI
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/124 , B60C11/1259 , B60C2011/1213
摘要： A pneumatic tire, having a plurality of sipes formed in land portions of a tread thereof so as to each extend in the tire width direction, characterized in that: in a cross section of the land portion orthogonal to the sipe extending direction, provided that an imaginary sipe main line links two ends in the tire radial direction of each sipe, at least two of the sipes are "inclined sipes" each having the sipe main line inclined with respect to the tire radial direction; each inclined sipe has inner bent portions each protruding with respect to the sipe main line with peaks positioned deeper than 20% of the sipe depth; and the sipe main line(s) of at least one of the inclined sipes are inclined in a direction opposite, with respect to the tire radial direction, to the sipe main line of any of the other inclined sipes.

6. 发明公开

EP2930035A4 PNEUMATIC TIRE 有权
标题翻译： LUFTREIFEN
公开(公告)号：EP2930035A4
公开(公告)日：2016-09-07
申请号：EP13859179
申请日：2013-10-25
申请人： BRIDGESTONE CORP
发明人： KATSUNO HIROYUKI , ISHIKAWA SATOSHI , KATAYAMA SHINSAKU , SETA EISUKE , KAJI YOSHIO , KURATA TAKAYUKI
IPC分类号： B60C11/11 , B60C11/03 , B60C11/04 , B60C11/12 , B60C11/13
CPC分类号： B60C11/11 , B60C5/00 , B60C11/0302 , B60C11/04 , B60C11/1236 , B60C11/13 , B60C11/1369 , B60C11/1384 , B60C2011/0344 , B60C2011/0346 , B60C2011/1213
摘要： A pneumatic tire, comprising: a tread surface; a plurality of grooves formed in the tread surface, including a plurality of widthwise grooves each extending from a corresponding tread end on the inner side in the tread width direction and a plurality of circumferential grooves each extending in the tread circumferential direction to intersect the widthwise grooves; blocks demarcated by the plurality of grooves; and a chamfered portion formed at a corner, on the trailing edge side and on the outer side in the tread width direction, of each block.
摘要翻译：一种充气轮胎，包括：胎面表面; 形成在所述胎面表面上的多个槽，包括从所述胎面宽度方向的内侧的相应的胎面端部延伸的多个宽度方向槽，以及在所述胎面周向上延伸的多个周向槽， ; 由多个槽划分的块; 以及形成在每个块的角落，后缘侧和胎面宽度方向的外侧的倒角部。

7. 发明公开

EP1030170A4 TIRE PERFORMANCE PREDICTING METHOD 有权
标题翻译：方法预测的性能的轮胎
公开(公告)号：EP1030170A4
公开(公告)日：2001-12-05
申请号：EP99940700
申请日：1999-09-07
申请人： BRIDGESTONE CORP
发明人： SETA EISUKE
IPC分类号： B60C3/00 , B60C3/04 , B60C11/00 , B60C11/03 , B60C19/00 , G01M17/02 , G06F17/50 , B29C33/02 , B29C35/02 , B29D30/06
CPC分类号： G06F17/5095 , B60C3/00 , B60C3/04 , B60C11/00 , B60C11/03 , B60C19/00 , B60C99/006 , G01M17/02 , G06F17/5018 , G06F2217/06 , G06F2217/16
摘要： Fluid-dependent performances, such as a draining performance, an on-snow-travelling performance and a noise performance, of actually used tires, are easily predicted. A tire model and fluid model are prepared by a finite element method from a tire design plan such as a shape and construction, a road surface condition is input (steps 100 to 106) by preparing a road surface model and selecting a friction coefficient ν, boundary conditions at a tire rolling or tire non-rolling time are set (step 108), a tire model deformation calculation and a fluid calculation are performed (steps 110 to 114), and a boundary surface between the tire model and the fluid model is recognized to update boundary conditions (steps 118, 120). The calculated results are output as prediction results for evaluation (step 122) and a design plan with eligible performances is used (steps 124 to 132). If not eligible, the design plan is changed (modified) (step 134).

8. 发明公开

EP2927025A4 PNEUMATIC TIRE 有权
公开(公告)号：EP2927025A4
公开(公告)日：2017-01-04
申请号：EP13858626
申请日：2013-11-28
申请人： BRIDGESTONE CORP
发明人： KATAYAMA SHINSAKU , SETA EISUKE , KAJI YOSHIO , KOIDE MASAFUMI , KURATA TAKAYUKI , KATSUNO HIROYUKI , AMANO MASAKAZU , TAKEI ATAKA
IPC分类号： B60C11/11 , B60C11/03 , B60C11/04 , B60C11/113 , B60C11/12 , B60C11/13
CPC分类号： B60C11/0311 , B60C5/00 , B60C11/0302 , B60C11/0306 , B60C11/033 , B60C11/0332 , B60C11/1236 , B60C11/1263 , B60C11/1369 , B60C2011/0313 , B60C2011/0341 , B60C2011/0344 , B60C2011/0369 , B60C2011/0374 , B60C2011/1209

9. 发明公开

EP2597452A4 METHOD FOR PREDICTING TIRE PERFORMANCE AND METHOD FOR DESIGNING TIRE 有权
标题翻译：一种用于预测设计的轮胎，轮胎性能和方法
公开(公告)号：EP2597452A4
公开(公告)日：2015-07-15
申请号：EP11809721
申请日：2011-07-22
申请人： BRIDGESTONE CORP , WSL INST FOR SNOW AND AVALANCHE RES SLF
发明人： SETA EISUKE , NAKAI TATSUYA , SCHNEEBELI MARTIN , SZABO DENES , LOEWE HENNING , HEGGLI MARTIN , HEMPEL FELIX , JAGGI MATTHIAS , GRAUPETER JORG
IPC分类号： G01M17/02 , B60C99/00 , G01M17/06 , G06F17/50
CPC分类号： G01M17/027 , B60C99/006 , G01M17/02 , G01M17/06 , G06F17/5009 , G06F17/5018 , G06F17/5095 , G06F2217/16
摘要： Disclosed is a method for predicting tire performance in which a tire model, which comprises a tread pattern capable of imparting deformation by means of ground contact and/or transfer, and a snow model, in which a snow-covered road surface that comes into contact with the tire model is represented, are used to predict tire performance on the snow-covered road surface on the basis of physical quantities that occur in at least either of the tire model and the snow model. The snow model is modeled as an elasto-plastic body or an elastic body, the nonlinearity of the volume compression property of snow is represented by the relationship between the density or volume strain of the snow and the pressure of the snow, and the shear property of the snow is represented by the relationship between the yield stress of the snow and the pressure of the snow.

10. 发明专利

JP2014231268A タイヤ有权
标题翻译：胎
公开(公告)号：JP2014231268A
公开(公告)日：2014-12-11
申请号：JP2013112257
申请日：2013-05-28
申请人：株式会社ブリヂストン , Bridgestone Corp
发明人： KACHI YOSHIO , KATAYAMA SHINSAKU , SETA EISUKE , KOIDE SEIJI , KURATA TAKAYUKI
IPC分类号： B60C11/11 , B60C11/00 , B60C11/12
摘要：【課題】氷上制動性能をさらに向上し得るタイヤを提供する。【解決手段】トレッド踏面に、タイヤ周方向に延びる周方向溝と該周方向溝に対して傾斜して延びる幅方向溝とによって区画形成された、接地面の算術平均粗さRaが1μm以上50μm以下である、複数のブロックを具え、前記複数のブロックのうち、少なくとも1つのブロックと他のブロックとの間、又は、少なくとも1つのブロックの一領域と該ブロックの他の一領域との間で、接地面の算術平均粗さRaが相互に異なる。【選択図】図2
摘要翻译：要解决的问题：提供一种能够提高制冰性能的轮胎。解决方案：轮胎构造成使得在轮胎周向上延伸的周向槽和在倾斜状态下延伸的宽度方向的槽，相对于周向槽形成块，并且设置在地面积为1μm以上且50μm以下的算术平均粗糙度Ra的多个块。在多个块中，在至少一个块与另一个块之间，或者在至少一个块的一个区域与同一块的另一个区域之间，地面上的算术平均粗糙度Ra彼此不同。

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