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    METODO Y APARATO PARA FABRICAR VARIOS CAUCHOS UNIDOS.
    2.
    发明专利
    METODO Y APARATO PARA FABRICAR VARIOS CAUCHOS UNIDOS. 未知

    公开(公告)号：ES2293903T3

    公开(公告)日：2008-04-01

    申请号：ES00939112

    申请日：2000-06-21

    Applicant: BRIDGESTONE CORP

    Inventor： OKAFUJI YUKITAKA ,  NAGASHIMA SHINICHI ,  NAGASAWA AKIHIRO ,  OGAWA YUICHIRO

    IPC: B29B11/04 ,  B29D30/38 ,  B29C65/08 ,  B29D30/42

    Abstract: Un método para la fabricación de caucho unido conjuntamente, que comprende: una etapa de configuración de la cara extrema para configurar una cara extrema (2a) de un miembro de caucho no vulcanizado (2) en forma de lámina, de tal manera que una cara extrema se puede unir a tope sobre la otra cara extrema (2b) del miembro de caucho no vulcanizado en forma de lámina, y una etapa de unión con junta de una cara extrema para unir a tope mutuamente una cara extrema sobre la otra cara extrema para realizar la unión conjunta, caracterizado porque la etapa de configuración de la cara extrema incluye medir la configuración de una cara extrema del miembro de caucho no vulcanizado en forma de lámina; configurar, sobre la base del resultado de la medición, la configuración de una cara extrema (2a) en una configuración de la cara extrema, en la que su borde de punta corresponde substancialmente con una línea recta de referencia (Y-Y); y conformar la otra cara extrema (2b) en una configuración que se puede unir a tope sobre la configuración de una cara extrema.

    METHOD FOR JOINING SHEETLIKE UNVULCANIZED RUBBER MATERIAL AND JOINING SYSTEM
    5.
    发明专利
    METHOD FOR JOINING SHEETLIKE UNVULCANIZED RUBBER MATERIAL AND JOINING SYSTEM 失效

    公开(公告)号：JP2001062940A

    公开(公告)日：2001-03-13

    申请号：JP2000171492

    申请日：2000-06-08

    Applicant: BRIDGESTONE CORP

    Inventor： OKAFUJI YUKITAKA ,  NAGASHIMA SHINICHI ,  NAGASAWA AKIHIRO ,  OGAWA YUICHIRO

    IPC: B29D30/38 ,  B29C65/08 ,  B29D30/42

    Abstract: PROBLEM TO BE SOLVED: To secure high operating efficiency, high joining accuracy and sufficient joining strength by correcting the end face width, in the longer direction, of a sheetlike unvulcanized rubber to a specified shape and butting the end faces against each other and further, moving a pair of joint rollers in the width direction while making the joint rollers roll to bring the end faces into contact under pressure with each other. SOLUTION: A sheetlike material 2 extruded in such a state that a cord such as of steel wire or fiber is coated with rubber by a calender roll, is cut to an appropriate length, and the positions of the cut end faces in the longer direction are corrected using an end face position correcting device. Thus the sheetlike material 2 is wound around a molding drum 70, and the tip face and the rear end face of the material 2 are set opposite to each other. Further, the tip face and the rear end face are brought into contact under pressure with each other by joint units 92 of an end face pressure contact device 71. After that, the end faces thus forced into contact with each other are welded together by an ultrasonic wave to be applied by an ultrasonic wave welding device. When the end faces are brought into contact under pressure with each other, it is possible to ensure a gapless correct and highly efficient pressure contact and secure the high joining accuracy and sufficient joining strength of the end faces because the end faces are mutually corrected to the specified shape.

    METHOD OF AND DEVICE FOR CUTTING BAND-LIKE RUBBER MATERIAL
    6.
    发明专利
    METHOD OF AND DEVICE FOR CUTTING BAND-LIKE RUBBER MATERIAL 失效

    公开(公告)号：JP2000198095A

    公开(公告)日：2000-07-18

    申请号：JP335299

    申请日：1999-01-08

    Applicant: BRIDGESTONE CORP

    Inventor： NAGASAWA AKIHIRO

    IPC: B26D3/00 ,  B26D1/46

    Abstract: PROBLEM TO BE SOLVED: To simply and surely cut a band-like rubber material even having a large thickness or a cutting face with a small inclined angle. SOLUTION: In a device for cutting a band-like rubber material, when a motor 69 is operated so as to move a movable frame 26, a metal wire 53 and a running means 69 in the substantially widthwise direction of the band-like rubber member 16 while a motor 54 is operated so as to run the metal wire 53 at a high speed in the longitudinal direction, the band-like rubber member 16 is cut by the metal wire 53. Since the band-like rubber member 16 is cut by the thin metal wire 53, the contact area between the band-like rubber member 16 and the metal wire 53 is extremely small, thereby it is possible to simply and surely cut the band-like rubber member.

    Tire manufacturing method
    7.
    发明专利
    Tire manufacturing method 审中-公开
    轮胎制造方法

    公开(公告)号：JP2005212197A

    公开(公告)日：2005-08-11

    申请号：JP2004019828

    申请日：2004-01-28

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

    Inventor： KATA TAKEHIRO ,  NAGASAWA AKIHIRO

    IPC: B60C13/00 ,  B29C33/02 ,  B29C33/42 ,  B29C35/02 ,  B29D30/72 ,  B29L30/00 ,  B60C13/04

    Abstract: PROBLEM TO BE SOLVED: To provide a tire manufacturing method related to a tire, which has characters or lines having a hue different from that of the periphery on its side wall parts, capable of efficiently manufacturing a tire of another kind easy in the changeover in size without requiring a large-sized extruder and capable of manufacturing a tire enhanced in the precision of a shape or the dimension of each of respective members, excellent from an aspect of uniformity or tire balance, clear in the contour of a character or a line and having no problem from an aspect of appearance.
    SOLUTION: At the time of molding of a green tire, a side wall rubber and a cover rubber are bonded by winding a rubber ribbon a plurality of times and the tire is vulcanized so that the minimum value of the thickness of the cover rubber on the side surface of a protruded part before buffing after vulcanization becomes half or below with respect to the average value of the thickness of the cover rubber of the part corresponding to the side surface of the protruded part in the green tire.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种轮胎的轮胎制造方法，该轮胎具有与其侧壁部分的周边不同的色调的特征或线条，能够有效地制造另一种类型的轮胎 在不需要大型挤出机并能够制造轮胎的情况下，在均匀性或轮胎平衡方面优异的形状或每个构件的尺寸的精度的改变，尺寸的转换在字符的轮廓上是清楚的 或一条线，并且从外观方面没有问题。 解决方案：在成型生轮胎时，通过多次缠绕橡胶条来粘合侧壁橡胶和覆盖橡胶，并且轮胎硫化，使得覆盖物的厚度的最小值 橡胶在硫化后的抛光前的突出部分的侧面上相对于与生胎的突出部的侧面对应的部分的覆盖橡胶的厚度的平均值成为一半以下。 版权所有（C）2005，JPO＆NCIPI

    METHOD FOR JOINING UNVULCANIZED RUBBER MEMBER
    8.
    发明专利
    METHOD FOR JOINING UNVULCANIZED RUBBER MEMBER 失效

    公开(公告)号：JPH11333935A

    公开(公告)日：1999-12-07

    申请号：JP14122698

    申请日：1998-05-22

    Applicant: BRIDGESTONE CORP

    Inventor： NAGASAWA AKIHIRO

    IPC: B29C65/08 ,  B29K21/00

    Abstract: PROBLEM TO BE SOLVED: To join the wide part of an unvulcanized rubber member uniformly and properly by applying ultrasonic waves to the part directly in turn through an oscillator which moves smoothly to the part. SOLUTION: With the oscillator 9 of an ultrasonic wave generator 2 loaded with a vertical load F, the oscillator 9 is rotation-moved from the starting ends to be joined to finishing ends to be joined of the abutting surfaces 27J of the end surface of an unvulcanized rubber member 27-1 and the end surface of an unvulcanized rubber member 27-2 while applying ultrasonic waves radiated from the peripheral surface of the oscillator 9 to the abutting surfaces 27J. When ultrasonic waves are applied to the rubber 27g of the unvulcanized rubber members 27-1, 27-2, the rubber of the surfaces 27J to be joined and the rubber close to the surfaces 27J are heated rapidly to high temperatures by frictional heat generated by the high frequency oscillation of the molecules of the rubber 27g to indicate a state close to melting, and the surfaces 27J are joined together firmly by this state and the vertical load F of the oscillator 3.

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