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    • 1. 发明专利
    • Vulcanization degree prediction method of rubber material
    • 橡胶材料的振动度预测方法
    • JP2014113707A
    • 2014-06-26
    • JP2012267532
    • 2012-12-06
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TSUNODA MASAYAARJUN YADAV
    • B29C35/00B29K21/00B29K105/24B60C19/00
    • G01N33/445G01N2203/0025G01N2203/0092G01N2203/0212
    • PROBLEM TO BE SOLVED: To predict with favorable accuracy a vulcanization degree of a rubber material.SOLUTION: There is provided a method for predicting a vulcanization degree of a rubber material. The vulcanization degree prediction method includes: a measurement step S1 in which a shear resistance torque of a rubber material in vulcanization is measured, and an actual measurement vulcanization cure curve 2 that shows relation between a vulcanization degree X(t) of the rubber material and a vulcanization time t is obtained; and an identification step S2 in which respective constants K, Kand m are identified so that an error between the actual measurement vulcanization cure curve 2 and a prediction vulcanization cure curve 3 may become the minimum. The identification step S2 includes: a constant calculation step S1 in which two or more real numbers are substituted to the constant K, and approximation is performed by the actual measurement vulcanization cure curve 2, thereby the respective constants K, Kand m are obtained for the respective real numbers; and a curve specifying step in which a prediction vulcanization cure curve 3s in which an error with the actual measurement vulcanization cure curve 2 is the minimum is obtained in two or more prediction vulcanization cure curves 3 obtained from the constants K, Kand m obtained from the respective real numbers.
    • 要解决的问题:以良好的精度预测橡胶材料的硫化度。解决方案:提供了一种预测橡胶材料的硫化度的方法。 硫化度预测方法包括:测量硫化橡胶材料的抗剪切扭矩的测量步骤S1和表示橡胶材料的硫化度X(t)与橡胶材料的硫化度X(t)之间的关系的实际测量硫化固化曲线2 获得硫化时间t; 以及识别步骤S2,其中识别各个常数K,K和m,使得实际测量硫化固化曲线2和预测硫化固化曲线3之间的误差可能变得最小。 识别步骤S2包括:常数计算步骤S1,其中两个或多个实数代入常数K,并且通过实际测量硫化固化曲线2进行近似,由此获得各常数K,K和m,用于 各实数; 以及从从实施测定硫化固化曲线2得到的常数K,K和m获得的两个以上的预测硫化固化曲线3中得到实际测定硫化固化曲线2的误差为最小的预测硫化固化曲线3s的曲线确定工序 各实数。
    • 4. 发明专利
    • Fluid simulation method
    • 流体模拟方法
    • JP2014102574A
    • 2014-06-05
    • JP2012252498
    • 2012-11-16
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TSUNODA MASAYAARJUN YADAV
    • G06F17/50
    • G06F17/5018
    • PROBLEM TO BE SOLVED: To calculate a shear stress of a fluid model, accurately in a short time.SOLUTION: A fluid simulation method analyzes a flow of a fluid in a periphery of a solid. The fluid simulation method comprises: a step of defining, by a computer 1, a straight line 9 connecting gravity center points 8, 8 in an element 5 of a solid area T1 and an element 6 of a fluid area T2 neighboring each other across a boundary surface 7; a step of defining an intersection point 10 of the boundary surface 7 and the straight line 9; a step of calculating a distance L2 between the center point of gravity 8 of the element 6 of the fluid area T2 and the intersection point 10; and a step of calculating a shear stress of a fluid model 3 acting on the boundary surface 7, according to the gravity center point 8 of the element 6 of the fluid area T2 and the straight line 9.
    • 要解决的问题:在短时间内准确地计算流体模型的剪切应力。解决方案:流体模拟方法分析固体周边流体的流动。 流体模拟方法包括:通过计算机1定义将实心区域T1的元件5中的重心点8,8与彼此相邻的流体区域T2的元件6连接的直线9 边界面7; 限定边界面7和直线9的交点10的步骤; 计算流体区域T2的元件6的中心重心8与交点10之间的距离L2的步骤; 以及根据流体区域T2和直线9的元件6的重心点8计算作用在边界面7上的流体模型3的剪切应力的步骤。
    • 5. 发明专利
    • Method and device for extruding tread rubber
    • 挤出橡胶的方法和装置
    • JP2014046677A
    • 2014-03-17
    • JP2012194365
    • 2012-09-04
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TANIMOTO RYOSUKEMORITA YUICHITSUNODA MASAYA
    • B29C47/06B29C47/12B29D30/52B29K21/00B60C11/00B60C19/08
    • PROBLEM TO BE SOLVED: To provide a method and a device for extruding tread rubber, in each of which a narrow linear zone can be formed suitably.SOLUTION: The method for extruding tread rubber is used for continuously extruding/forming the unvulcanized tread rubber TG while merging a plurality of rubber materials G with one another in a preformer 2. The cross section of the tread rubber TG includes the linear zone Ra and side part zones Rb, Rb formed on the right-and-left sides of the linear zone Ra. At a step of supplying a first rubber material G4 for forming the linear zone Ra to the space among the second rubber materials G1-G3 for forming the side part zones Rb, the first rubber material G4 is extruded into the preformer 2 from a discharge port 7d including a linear opening and discharged from the discharge port 7d while substantially fixing a speed distribution of the first rubber material G4 in the thickness direction Y so that the linear zone Ra can be formed stably in the cross section of the tread rubber TG.
    • 要解决的问题:提供一种用于挤出胎面橡胶的方法和装置,其中每个都可以适当地形成窄的直线区域。解决方案:用于挤出胎面橡胶的方法用于连续挤出/形成未硫化的胎面橡胶TG 同时在预成型机2中将多个橡胶材料G彼此合并。胎面橡胶TG的横截面包括线性区域Ra和形成在线性区域Ra的左右两侧的侧部区域Rb,Rb 。 在将用于形成线性区域Ra的第一橡胶材料G4供给到用于形成侧部区域Rb的第二橡胶材料G1-G3之间的空间的步骤中,第一橡胶材料G4从排出口 7d包括线性开口并从排出口7d排出,同时基本上固定第一橡胶材料G4在厚度方向Y上的速度分布,使得可以在胎面橡胶TG的横截面中稳定地形成直线区域Ra。
    • 6. 发明专利
    • Rigid core for tire vulcanization
    • RIGID CORE FOR TIRE VULCANIZATION
    • JP2011131526A
    • 2011-07-07
    • JP2009294398
    • 2009-12-25
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TSUNODA MASAYAHAKAMATA AKIO
    • B29C33/02B29L30/00
    • PROBLEM TO BE SOLVED: To suppress plastic deformation of a tread molding part upon vulcanization under improving heat conduction by reducing thickness of a tread molding part.
      SOLUTION: A rigid core tire vulcanization includes: a toroidal hollow core body installed with a tread molding part; a sidewall molding part; and a bead molding part. The core body is formed by a first core segment wherein divided surfaces in both end parts in a peripheral direction are formed in an inwardly inclined surface and a second core segment wherein divided surfaces in both end parts in a peripheral direction are made an outwardly inclined surface conforming with the inwardly inclined surfaces. The second core segment is installed with a concave part concaving in a direction of reducing a peripheral width at the end part of at least one peripheral direction of the tread molding part and between the end peripheral parts of the tread part, and the first core segment is installed with a convex part matching to the concave part at the end in the peripheral direcion of the tread molding part.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过降低胎面成型部件的厚度,在改善热传导时,抑制硫化时的胎面成型部件的塑性变形。 解决方案:刚性芯轮胎硫化包括:安装有胎面模制部件的环形中空芯体; 侧壁成型部; 和胎圈成型部。 芯体由第一芯部段形成,其中沿圆周方向的两个端部中的分隔表面形成在向内倾斜的表面中,并且第二芯部分在周向方向上的两个端部中的分隔表面形成为向外倾斜的表面 符合向内倾斜的表面。 第二芯部分安装有凹部,该凹部沿着减小胎面成型部的至少一个周向的端部的周边宽度并且在胎面部的端部周边部分之间以及第一芯部段 安装有与胎面成型部的周向端部的端部匹配的凸部。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Method for calculating friction characteristic between fluid material and channel wall surface, and measuring device used therefor
    • 用于计算流体材料和通道壁表面之间的摩擦特性的方法,以及用于其的测量装置
    • JP2011027593A
    • 2011-02-10
    • JP2009174571
    • 2009-07-27
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TSUNODA MASAYA
    • G01N19/02
    • PROBLEM TO BE SOLVED: To provide a method for calculating friction characteristics between unvulcanized rubber and a wall surface of a rubber channel, and also to provide a measuring device used therefor. SOLUTION: This method for calculating friction characteristic between unvulcanized rubber and the wall surface of the rubber channel through which the unvulcanized rubber flows, includes processes of: supplying unvulcanized rubber extruded by a rubber extruder into the rubber channel having the same inner diameter and extending in the axial direction with an analysis object length determined beforehand, and measuring a pressure P0 on the channel wall surface on the upstream side in an analysis object section and a pressure P1 on the channel wall surface on the downstream side in the analysis object section; calculating a wall surface shearing stress in the analysis object section from a pressure difference (P0-P1); and calculating slip speed on the wall surface of the rubber channel by using the wall surface shearing stress, a flow rate per unit time of the unvulcanized rubber, and viscosity characteristics of the unvulcanized rubber. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于计算未硫化橡胶和橡胶通道的壁表面之间的摩擦特性的方法,并且还提供用于其的测量装置。 解决方案:用于计算未硫化橡胶与未硫化橡胶流动的橡胶通道壁面之间的摩擦特性的方法包括以下过程:将由橡胶挤出机挤出的未硫化橡胶供入具有相同内径的橡胶通道 并且以预先确定的分析对象长度在轴向上延伸,并且测量分析对象部分上游侧的通道壁面上的压力P0和分析对象中的下游侧的通道壁面上的压力P1 部分; 从压力差(P0-P1)计算分析对象部分中的壁面剪切应力; 并通过使用壁面剪切应力,未硫化橡胶的每单位时间的流量和未​​硫化橡胶的粘度特性来计算橡胶通道的壁面上的滑移速度。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Method of designing viscoelasticity structure to be brought in contact with human body
    • 设计与人体接触的粘弹性结构的方法
    • JP2003281220A
    • 2003-10-03
    • JP2002083545
    • 2002-03-25
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TSUNODA MASAYAYOSHINAGA HIROSHIFUJIMURA AKITERU
    • A47C31/12G06F17/50
    • PROBLEM TO BE SOLVED: To provide a method of designing an viscoelasticity structure (mattress, cushion or the like) for supporting weight of a human being to relax the contact stress between the human body by using a computer.
      SOLUTION: In this method of designing the viscoelasticity structure for supporting weight of a human being to relax the contact stress between the human body by using a computer, a human model formed into a similar shape with a human body and modeled by limited elements is used. This method contains a process for analyzing the stress to be applied to the human model when the human model is brought in contact with the viscoelasticity structure modeled by the limited elements and for computing a target function by changing a design variable. With this design method, a mattress effective to prevent bedsores can be efficiently designed without repeating trial manufacture.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种设计用于支撑人体的粘弹性结构(床垫,坐垫等)的方法,以通过使用计算机来放松人体之间的接触应力。 解决方案:在这种设计用于支撑人体的粘弹性结构的方法中,通过使用计算机来放松人体之间的接触应力,人体模型与人体形成相似的形状并由有限的模型 元素被使用。 该方法包含一个过程,用于分析当人体模型与由有限元素建模的粘弹性结构接触并通过改变设计变量来计算目标函数时应用于人体模型的应力。 通过该设计方法,可以有效地设计有效地防止褥疮的床垫,而无需重复试制。 版权所有(C)2004,JPO
    • 10. 发明专利
    • Method and device for simulation of plastic material extrusion
    • 用于模拟塑料材料挤出的方法和装置
    • JP2013184367A
    • 2013-09-19
    • JP2012050743
    • 2012-03-07
    • Sumitomo Rubber Ind Ltd住友ゴム工業株式会社
    • TSUNODA MASAYATANIMOTO RYOSUKE
    • B29C47/00G06F17/50
    • G06F17/50G06F17/5018
    • PROBLEM TO BE SOLVED: To provide a method and a device for stable simulation of plastic material extrusion.SOLUTION: An extrusion simulation method of a plastic material includes: a step of setting a material model; a step of setting a flow passage model; a step of carrying out a flow calculation by arranging the material model in the flow passage model and making it flow; and a step of acquiring physical values from the material model. The flow calculation includes: a first calculation step S53 of calculating until the material model is stabilized with its viscosity fixed; a second calculation step S57 of calculating using the calculated result of the material model obtained in the first calculation step as an initial value until the material model is stabilized by imparting only one of shear velocity dependence and temperature dependence; and a third calculation step S61 of calculating using the calculation result of the material model obtained by the second calculation step as an initial value by imparting the shear velocity dependence and temperature dependence to the material model until a stable state is attained.
    • 要解决的问题:提供塑料材料挤出的稳定模拟的方法和装置。解决方案:塑料材料的挤出模拟方法包括:设置材料模型的步骤; 设定流路模型的步骤; 通过在流路模型中布置材料模型并使其流动来进行流量计算的步骤; 并从材料模型中获取物理价值的一个步骤。 流量计算包括:第一计算步骤S53,其计算直到材料模型以其粘度固定为止稳定; 第二计算步骤S57,使用在第一计算步骤中获得的材料模型的计算结果作为初始值进行计算,直到通过仅施加剪切速度依赖性和温度依赖性之一来稳定材料模型; 以及第三计算步骤S61,使用通过将材料模型的剪切速度依赖性和温度依赖性赋予材料模型直到达到稳定状态来计算使用通过第二计算步骤获得的材料模型的计算结果作为初始值。