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    Method of manufacturing pipe body and pipe body manufactured by the method
    1.
    发明公开
    Method of manufacturing pipe body and pipe body manufactured by the method 有权
    管体和工艺及其制备方法

    公开(公告)号：EP1121992A3

    公开(公告)日：2002-04-17

    申请号：EP01300945.1

    申请日：2001-02-02

    申请人： Ricoh Company, Ltd.

    发明人： Kondou, Takafumi, c/o Ricoh Company Ltd ,  Ishino, Keiji, c/o Ricoh Company Ltd

    IPC分类号： B21C37/10

    CPC分类号： B21C37/104

    摘要： A method of manufacturing pipe body by which pipe body with precise quality and closely contacted scam can be made stably by pressing process, and pipe body manufactured by the method are provided. To manufacture a pipe body 1 made of metal with circular or polygonal cross section comprising a seam 5e and a wall 2 or plurality of walls 2, 3 and 4, a pipe-like intermediate product 14 is made by bending a metal plate 6 of which edges to be seam 5e have not yet contacted together. In case for prism pipe, the intermediate product comprises walls 5a, 5b to be contacted and be a wall including seam, and other walls, and both angles of both ends of one specified wall 15 of the intermediate product are larger than those of completed pipe. External forces are applied to adjoining walls 16, 16 of the one specified wall 15 so as for the one specified wall 15 to include convex portion 32 to outer side and for the seam 5e to be closely contacted together, then another external force is applied to the one specified wall 15 so as to be flat and to be the completed pipe 1. A spring back force tending the one specified wall to be back as original convex form is induced and it maintains the seam 5e in close contacted condition. In case for cylindrical pipe, the intermediate product has an oval cross section with its seam contacted together, and an external force is applied in long axis direction of the oval so as for the oval to be circular and to be a completed pipe 1. A spring back force tends the pipe to be back as original oval form is induced and it maintains the seam 5e in close contacted condition.

    Method for producing pipe having polygon-shaped closed cross-section and device therefor
    4.
    发明公开
    Method for producing pipe having polygon-shaped closed cross-section and device therefor 失效
    用于与多边形横截面管的成形方法和装置

    公开(公告)号：EP0799656A3

    公开(公告)日：1998-07-15

    申请号：EP97105632

    申请日：1997-04-04

    申请人： TOYOTA MOTOR CO LTD ,  AMINO CORP

    发明人： KADOMA YOSHIAKI ,  NIHASHI IWAO ,  OGAWA HIDEO ,  AMINO HIROYUKI ,  SUZUKI YOUJI

    IPC分类号： B21C37/10 ,  B21C37/15 ,  B21D3/10 ,  B21D5/01

    CPC分类号： B21C37/104 ,  B21C37/155

    摘要： A method for continuously producing pipes, each having a polygon-shaped closed cross-section taken perpendicularly to the feeding direction of a strip of metal, which are free from brittleness caused by metal fatigue, and have good precision. A feed-bending method of successively feeding a strip of metal (work) W between a main die body, mandrel,punch and correction punches by predetermined feed lengths,and pressing the work W with these members synchroously with feeding is performed. The work W is gradually bent along designed ridgelines L1 through L2 extending in the feeding direction and defining ridgelines L5 through L8 of a product pipe W1, from the ridgelines L1 and L2 close to widthwise ends e1 and e2 to the ridgelines L3 and L4 in the widthwise center thereof in the course between the vicinity of an inlet and the vicinity of a middle of a device, and then, a resulting rough pipe W0 is corrected from the inside and outside thereof in the vicinity of an outlet of the device.

    Bauteilverbindung
    6.
    发明公开
    Bauteilverbindung 审中-公开
    组件之间的连接

    公开(公告)号：EP1640079A1

    公开(公告)日：2006-03-29

    申请号：EP05017272.5

    申请日：2005-08-09

    申请人： CLAAS Fertigungstechnik GmbH

    发明人： Herrmann, Günter

    IPC分类号： B21D39/02

    CPC分类号： B21C37/108 ,  B21C37/104

    摘要： Die Erfindung betrifft eine Bauteilverbindung (1) zwischen ersten und zweiten Bauteilen (2, 3), wobei die Bauteilverbindung (1) unlösbar und verdrehsicher ausgebildet ist und das wenigstens eine erste Bauteil (2) das weitere Bauteil (3) teilweise und formschlüssig umgreift und die ersten und zweiten Bauteile (2, 3) in diesem Überdeckungsbereich (8) wenigstens teilweise kraftschlüssig verbunden sind. Auf diese Weise wird sichergestellt, dass die Bauteilverbindung (1) auf einfache Weise und kostengünstig herstellbar ist und mittels dieser Bauteilverbindung (1) zugleich hohe Kräfte und Momente übertragen werden können.

    摘要翻译： 本发明涉及第一和第二部件之间的设备连接（1）（2，3），其中所述组分（1）化合物是永久地和不可移动和至少一个第一部件（2）的另外的部件（3）部分地和积极拥抱和 该重叠区域（8）中的第一和第二部件（2,3）至少部分地非强制连接。 以这种方式，确保了与成分化合物（1）可以廉价地并且以简单的方式和在相同的时间大的力和力矩可以传输该组件（1）化合物来产生。

    METHOD AND APPARATUS FOR FORMING A DUCT SECTION
    8.
    发明公开
    METHOD AND APPARATUS FOR FORMING A DUCT SECTION 失效
    方法和设备用于生产管道件。

    公开(公告)号：EP0483208A1

    公开(公告)日：1992-05-06

    申请号：EP90910835.0

    申请日：1990-07-18

    申请人： FIRMAC LIMITED

    发明人： FIRTH, Colin

    IPC分类号： B21C37

    CPC分类号： B21C37/104 ,  B21C37/155

    摘要： L'invention concerne un procédé et un appareil de formage d'un tronçon de conduit consistant à couper à partir d'une amenée de tôle en bande, une longueur de ladite tôle afin de définir ses extrêmités avant et arrière, et à avancer la longueur de tôle dans le sens de sa longueur jusqu'à un poste de formage; à avancer la longueur au moyen d'un système de manipulation automatique; à former sur lesdits bords avant et arrière, un moyen de formage de jointure afin de rendre lesdits bords avant et arrière complémentaires pour ménager une jointure pliée et aplatie dans le tronçon final du conduit, et au niveau dudit poste de formage, à donner à la longueur de tôle la forme d'un tronçon de conduit par pliage de ce dernier dans un sens transversal par rapport au sens de la longueur du tronçon de la tôle, afin d'amener les bords avant et arrière en contact formant une jointure, puis à plier et à aplatir lesdits bords avant et arrière pour former ladite jointure.