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    Method of manufacturing gear from metal sheet and the gear manufactured by the method
    1.
    发明申请
    Method of manufacturing gear from metal sheet and the gear manufactured by the method 审中-公开
    从金属板和通过该方法制造的齿轮制造齿轮的方法

    公开(公告)号：US20090090007A1

    公开(公告)日：2009-04-09

    申请号：US12285353

    申请日：2008-10-02

    申请人： Masahiro Takada ,  Shigenari Takigiri ,  Tetsuo Ono

    发明人： Masahiro Takada ,  Shigenari Takigiri ,  Tetsuo Ono

    IPC分类号： B23P15/14 ,  F16H55/00

    CPC分类号： B21D28/16 ,  B21D53/28 ,  B21K23/00 ,  B23P15/14 ,  Y10T29/49464 ,  Y10T74/19972

    摘要： A gear is manufactured in a half blanking stage, a punching stage and a separating stage. In the half blanking stage, half blanking is performed for a columnar portion of a metal sheet. A part of an outer circumferential surface of the blank is disconnected from the other portion of the sheet, while the other part of the outer circumferential surface of the blank is connected with the other portion of the sheet. In the punching stage, an inner portion of the blank is punched in a punching direction to form teeth on an inner circumferential surface of the blank. In the separating stage, the blank is separated from the other portion of the sheet as a gear toward a separation direction opposite to the punching direction by disconnecting the other part of the outer circumferential surface of the blank from the other portion of the sheet.

    摘要翻译： 在半冲切阶段，冲压阶段和分离阶段制造齿轮。 在半冲切阶段，对金属板的柱状部分进行半冲切。 坯料的外周面的一部分与片材的​​另一部分分离，而坯料的外周面的另一部分与片材的​​另一部分连接。 在冲压阶段，坯料的内部在冲压方向上冲压，以在坯料的内圆周表面上形成齿。 在分离阶段，通过将坯料的外周面的另一部分与片材的​​另一部分断开，坯料与片材的另一部分作为齿轮分离成与冲孔方向相反的分离方向。

    Apparatus for producing a flat tube and method of producing a flat tube
    2.
    发明授权
    Apparatus for producing a flat tube and method of producing a flat tube 有权
    用于制造扁平管的装置和制造扁平管的方法

    公开(公告)号：US08661866B2

    公开(公告)日：2014-03-04

    申请号：US12982074

    申请日：2010-12-30

    申请人： Kazuhiro Mitsukawa ,  Shigenari Takigiri ,  Shigenobu Furukawa

    发明人： Kazuhiro Mitsukawa ,  Shigenari Takigiri ,  Shigenobu Furukawa

    IPC分类号： B21D5/14 ,  B21D5/08

    CPC分类号： B21C37/0803 ,  B21C37/0818 ,  F28D1/0391

    摘要： A method of producing a flat tube T by bending a band-like material M to be worked, wherein the material M to be worked is pre-bent to form a pre-formed groove Md in the material M along the longitudinal center axis thereof. Thereafter, the material M to be worked is gradually moved so that both edge portions of the material M to be worked in the lengthwise direction thereof gradually approach each other with the pre-formed groove Md as a center to form a tubular shape.

    摘要翻译： 通过弯曲待加工的带状材料M来生产扁平管T的方法，其中待加工的材料M被预弯曲以在材料M中沿着其纵向中心轴线形成预成形的凹槽Md。 此后，待加工的材料M逐渐移动，使得待预加工的材料M的长度方向上的两个边缘部分以预成形的凹槽Md为中心逐渐接近以形成管状。