3.
    发明专利
    未知

    公开(公告)号:BR7301175D0

    公开(公告)日:1974-09-24

    申请号:BR117573

    申请日:1973-02-16

    Applicant: WHITE J

    Inventor: WHITE J

    Process of bending structural members and tool therefor
    10.
    发明授权
    Process of bending structural members and tool therefor 失效
    弯曲结构构件及其工具的过程

    公开(公告)号:US3753366A

    公开(公告)日:1973-08-21

    申请号:US3753366D

    申请日:1971-02-08

    Applicant: WHITE J

    Inventor: WHITE J

    CPC classification number: B21D11/08

    Abstract: Structural members such an angle iron or channel members are bent to a desired radius by crimping the flange or flanges thereof to provide V-shaped pockets or crimps therein. The crimping tool includes a crimping jaw which, before crimping, locates the tool against the leg of the angle or channel member but which swings slightly away from it during crimping movement effected on the intersected flange so as to avoid tearing or shearing the flange while still locating the crimp very close to the leg. An improved form of angle or channel member is provided with openings along the intersection of the leg and flange to allow accurate positioning of the crimp and to further militate against tearing or shearing of the flange.

    Abstract translation: 通过卷边其凸缘或凸缘来将诸如角铁或通道构件的结构构件弯曲到期望的半径,以在其中提供V形口袋或卷曲。 压接工具包括压接钳口,压接钳口在压接之前将工具定位在角度或通道构件的腿部上,但是在相交的法兰上进行压接运动期间稍稍偏离其摆动,以避免在仍然会撕裂或剪切凸缘的同时 将卷边非常靠近腿部。 角部或通道部件的改进形式沿着腿部和凸缘的交点设有开口,以允许压接部的精确定位,并进一步阻止凸缘的撕裂或剪切。

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