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1. 发明授权

US5101653A Mechanical pipe expander 失效
标题翻译：机械管道膨胀机
公开(公告)号：US5101653A
公开(公告)日：1992-04-07
申请号：US617901
申请日：1990-11-26
申请人： Rolf Hermes , Herbert Jansen , Hans G. Schiffers , Arno Toputh
发明人： Rolf Hermes , Herbert Jansen , Hans G. Schiffers , Arno Toputh
IPC分类号： B21D39/20
CPC分类号： B21D39/20
摘要： A mechanical pipe expander having a pyramidal, polyhedronal cross-section, segments resting against the pyramidal surfaces which are displaceable in axial direction relative to the polyhedron, and grooves formed in the longitudinal centers of the edges of the polyhedron so that the side surfaces of the grooves represent guides for the correspondingly shaped segments. The segments are formed as dove tails on the leading end thereof over a length of about 5-30% of their total length and each of the side surfaces of the dove tail recesses slide on a side surface of two adjacent grooves formed in the polyhedron. The length of the grooves is limited to the path of displacement of the polyhedron with respect to the segments, and the ends of the segments facing away from the leading end are held by radially acting springs against the surfaces of the polyhedron.
摘要翻译：具有金字塔形的多面体横截面的机械管道膨胀器，相对于在多面体的轴向方向上可移位的金字塔形表面的节段和在多面体的边缘的纵向中心中形成的凹槽，凹槽代表相应形状的段的引导件。这些段在其前端形成为其总长度的约5-30％的长度的鸽尾，并且鸽子尾部凹部的每个侧表面在形成于多面体中的两个相邻凹槽的侧表面上滑动。槽的长度被限制为多面体相对于段的位移的路径，并且面向前端的段的端部通过径向作用的弹簧保持抵靠多面体的表面。

2. 发明授权

US5390520A Closed-frame type pipe-bending press 失效
标题翻译：闭框式弯管机
公开(公告)号：US5390520A
公开(公告)日：1995-02-21
申请号：US61666
申请日：1993-05-14
申请人： Rolf Hermes , Manfred Kolbe
发明人： Rolf Hermes , Manfred Kolbe
IPC分类号： B21C37/08 , B21D5/01 , B30B15/00 , B21D5/02
CPC分类号： B30B15/007 , B21D5/01
摘要： A pipe-bending press with a large bending length in a closed frame construction, has a frame with side columns and upper and lower cross-pieces. The table supporting the lower bending tools is supported at the lower cross-piece and the upper bending tool which is guided vertically at the side columns in a parallel manner is supported via a plurality of identical piston/cylinder units arranged side by side so that the upper bending tool can be raised and lowered relative to the upper cross-piece. The cylinder spaces of the piston/cylinder units are connected to a common pressure medium unit via a common control line, and the lower piston/cylinder units are arranged between the table supporting the lower bending tools and the lower cross-piece.
摘要翻译：在闭合框架结构中具有大弯曲长度的弯曲压弯机具有带有侧柱和上下横梁的框架。支撑下弯曲工具的工作台被支撑在下横梁上，并且以平行方式在侧柱垂直引导的上弯曲工具经由并排设置的多个相同的活塞/气缸单元支撑，上弯曲工具可以相对于上横梁上升和下降。活塞/气缸单元的气缸空间通过公共控制线连接到公共压力介质单元，下活塞/气缸单元布置在支撑下弯曲工具的工作台和下横梁之间。

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