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    METHOD OF MANUFACTURING TIRE
    64.
    发明公开
    METHOD OF MANUFACTURING TIRE 有权
    轮胎制造过程

    公开(公告)号：EP1704991A4

    公开(公告)日：2008-01-23

    申请号：EP04807912

    申请日：2004-12-27

    Applicant: BRIDGESTONE CORP

    Inventor： OGAWA YUICHIRO

    IPC: B29D30/16 ,  B29D30/34

    CPC classification number: B29D30/34 ,  B29D30/16 ,  B29D2030/1678

    Abstract: [PROBLEMS] To provide a high tension resistance to the carcass plies of a tire molded on a doughnut-shaped core and also increase the rigidity of a bead part. [MEANS FOR SOLVING PROBLEMS] In this method of manufacturing a tire, carcass cords (3) and (9) are continuously stuck on the outer surface of the doughnut-shaped core (1) through all the periphery thereof to form the carcass plies (4) and (10). The carcass cord (3) is extended in the meridian direction of the core (1) and folded back at each side part of the core (1) to form the carcass ply (4) on the inner layer side. The radial inner peripheral portions (7) of the inner layer side carcass ply (4) are wound up around bead cores (6) in the radial outer direction, and a skim rubber (8) is stuck on the outer surface of the inner layer side carcass ply (4) after the wound-up portions (7a) are formed. Then, an outer layer side carcass ply (10) formed of carcass cord (9) extending in the meridian direction of the core (1) and folded back at each side part of the core (1) is stuck on the outer surface of the skim rubber (8).

    TIRE PRODUCING METHOD AND TIRE
    65.
    发明公开
    TIRE PRODUCING METHOD AND TIRE 有权
    轮胎的制造方法和轮胎

    公开(公告)号：EP1650012A4

    公开(公告)日：2006-10-25

    申请号：EP04747512

    申请日：2004-07-14

    Applicant: BRIDGESTONE CORP

    Inventor： OGAWA YUICHIRO ,  SAWADA CHIHIRO

    IPC: B29D30/30 ,  B29D30/20 ,  B29D30/24 ,  B60C15/00 ,  B60C17/00

    CPC classification number: B60C15/0045 ,  B29D30/20 ,  B29D30/244 ,  B29D2030/201 ,  B29D2030/724 ,  B60C17/0009

    Abstract: In producing a side-reinforced type runflat tire in which side reinforcing rubbers with generally crescent-shaped sections are interposed between a carcass and an inner liner, the first drums 11a, 11b on which the side-reinforcing rubbers are to be attached are so configured that their diameter do not substantially fluctuate along the axial direction. The expanding operation of the first drum, the mutually approaching operation of the first drums 11a, 11b, and the approaching operation of the bead gripping rings 30A are synchronized. As a result, there is provided a tire and a method of its production capable of being produced by a multi-size mixed flow production system consisting of minimum equipments and of preventing air inclusions and wrinkles between the carcass member 4A and the side-reinforcing rubber 2A.

    TIRE MANUFACTURING METHOD, COVER RUBBER STAMPING DEVICE USED FOR THE MANUFACTURING METHOD, TIRE, RUBBER SHEET MEMBER STAMPING METHOD, AND RUBBER SHEET MEMBER STAMPING DEVICE
    66.
    发明公开
    TIRE MANUFACTURING METHOD, COVER RUBBER STAMPING DEVICE USED FOR THE MANUFACTURING METHOD, TIRE, RUBBER SHEET MEMBER STAMPING METHOD, AND RUBBER SHEET MEMBER STAMPING DEVICE 有权
    轮胎制造过程对于该方法使用的橡胶COAT DANCE DEVICE，轮胎中，METHOD FOR橡胶表面构件和装置的冲切橡胶表面构件冲孔

    公开(公告)号：EP1555114A4

    公开(公告)日：2006-05-03

    申请号：EP03758827

    申请日：2003-10-23

    Applicant: BRIDGESTONE CORP

    Inventor： OGAWA YUICHIRO

    IPC: B29C47/00 ,  B29D30/72 ,  B60C13/00 ,  B60C13/04 ,  B26D1/38 ,  B29C47/08 ,  B29K21/00 ,  B29L30/00

    CPC classification number: B29C47/32 ,  B29C47/00 ,  B29C47/0035 ,  B29C47/026 ,  B29C47/0866 ,  B29D30/72 ,  B29D2030/726 ,  B29K2021/00 ,  B29L2030/007 ,  B60C13/001 ,  B60C13/04

    Abstract: A method of manufacturing a tire having first color characters or lines on at least one side wall part, comprising the steps of stamping a second color side wall rubber and a first color side wall rubber on the side face of a carcass member formed in a toroidal shape by winding, a plurality of turns, a continuous second color rubber ribbon and a continuous first color rubber ribbon thereon, stamping a second color cover rubber on the outsides of the side wall rubbers by winding a rubber sheet whereon one turn in an annular shape, and molding a green tire, whereby the use of a large extruder can be eliminated, the other types of tires can be efficiently manufactured since a size switching can be easily performed, the accuracies of the shape and the dimensions of the members thereof can be increased, the uniformity and the tire balance thereof can be increased, and the sharp profile of the first color characters or lines can be assured, thus eliminating visual problems.

    Abstract translation: 制造具有第一颜色的字符或在至少一个侧壁部线的轮胎的方法，包括：冲压的第二颜色侧壁橡胶和上以环形形成的胎体构件的侧面的第一颜色侧壁橡胶的步骤 通过卷绕，线匝的复数，一个连续的第二颜色橡胶带和其上的连续的第一颜色橡胶带，通过缠绕橡胶片冲压在侧壁橡胶的外侧的第二颜色覆盖橡胶成型于其上一匝在环形设计形状 和成型的生胎，其中使用大的拉伸的可被消除，不同类型的轮胎能够高效地制造由于尺寸切换能够容易地进行，该形状的精度和部件的尺寸可以提高其 中，均匀性和其轮胎平衡可以增加，并且所述第一颜色字符或线条的尖锐轮廓可以假定，与相关联的appearan从而消除问题 CE。

    METHOD AND APPARATUS FOR FORMING TIRE REINFORCING LAYER
    67.
    发明公开
    METHOD AND APPARATUS FOR FORMING TIRE REINFORCING LAYER 有权
    方法和装置形成了轮胎补强管理

    公开(公告)号：EP0956940A4

    公开(公告)日：2000-12-06

    申请号：EP98945592

    申请日：1998-10-02

    Applicant: BRIDGESTONE CORP

    Inventor： OGAWA YUICHIRO

    IPC: B29D30/16 ,  B29D30/30

    CPC classification number: B29D30/1657 ,  B29C2793/0081 ,  B29D2030/1685 ,  B29D2030/4493 ,  B29D2030/705 ,  Y10T156/1075 ,  Y10T156/13

    Abstract: A method enabling the formation of a tire reinforcing layer with a high efficiency on an outer circumferential surface of a rigid core (13), comprising bonding ribbons (33), each of which is obtained by coating parallel-extending cords (17) with rubber, to the outer circumferential surface of the rigid core (13) in succession in a circumferential direction thereof while bringing side edges of the ribbons into close contact with those of adjacent ribbons, whereby it becomes possible to set a plurality of cords (17) in one bonding operation, so that the number of bonding operations for forming a tire reinforcing layer decreases; and an apparatus for forming a tire reinforcing layer.

    69.
    发明专利
    未知

    公开(公告)号：DE602005020952D1

    公开(公告)日：2010-06-10

    申请号：DE602005020952

    申请日：2005-08-25

    Applicant: BRIDGESTONE CORP

    Inventor： OGAWA YUICHIRO

    IPC: B29D30/32

    Abstract: A tire molding apparatus folds the periphery of bead portions at a low speed with an increased pressing force. The tire molding apparatus has folding mechanisms including fingers to fold the tire component to the periphery of bead cores. Folding fingers (101) are integrally provided with cams (120), which rotate in accordance with the swing of the fingers. The fingers (101) receive a driving force of a driver (130) through cam followers (122) energized by springs and the cams (120), and open. The cams (120) are rotated in accordance with the opening of the finger, compressing the springs energizing the cam followers (122). The compression of the springs reduces the opening speed of the fingers (101), and increases the pressing force of finger rolls (104) applied to the tire component (K).

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