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Publication numberDE2918813 A1
Publication typeApplication
Application numberDE19792918813
Publication date20 Nov 1980
Filing date10 May 1979
Priority date10 May 1979
Publication number19792918813, 792918813, DE 2918813 A1, DE 2918813A1, DE-A1-2918813, DE19792918813, DE2918813 A1, DE2918813A1, DE792918813
InventorsErwin Krause
ApplicantBrueninghaus Gmbh Stahlwerke
Export CitationBiBTeX, EndNote, RefMan
External Links: DPMA, Espacenet
Bending machine for metal bars or tubes - has horizontally movable pillars supporting respective anvils on which workpiece is bent via rollers on lever arms
DE 2918813 A1
On the machine bed are two pillars which can be moved horizontally towards or away from each other to suit the length of the workpiece, e.g. a metal bar; and each pillar supports an anvil on which the bar rests. Above each anvil is a roller forming a bending die, and a lever moving another roller to bend the bar round the die. In the space between the two pillars is a clamp used either to hold the bar or to rotate it through a desired angle. Useful in the automatic mfr. of antiroll bars for cars. Each pillar (27) supports anvil (11) on which bar (12) rests. Two work cylinders (14) each move a lever arm (15) carrying a bending roller (16), which bends bar (12) onto roller die (32) so two bends are made simultaneously or successively. Clamp (13) includes a pneumatic cylinder (45) pressing two clamping rollers (42) against bar (12), but the clamping pressure can be partly released so a hand lever can rotate bar (12) through a desired angle between bending operations.
Description  available in
Claims  available in
Non-Patent Citations
1 *Maschinenmarkt, 1979, Nr. 2, S. 28
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
DE3044646A1 *27 Nov 19809 Sep 1982Lang Thomas Peter Dipl WirtschBending machine handling pipe sections - includes clamp jaw engaging on bending segment, and has carriage with bending section
CN102632165A *23 Mar 201215 Aug 2012冯广建Arm type automatic reinforcing steel bar molding machine
CN102632165B23 Mar 20122 Apr 2014冯广建Arm type automatic reinforcing steel bar molding machine
CN104907372A *27 May 201516 Sep 2015德清铭泰户外用品有限公司Bilateral electric heating pipe bending machine
EP0121077A2 *21 Feb 198410 Oct 1984Thomas Peter LangPipe-bending machine
EP0121077A3 *21 Feb 198423 Jan 1985Thomas Peter LangPipe-bending machine
EP0263607A1 *16 Sep 198713 Apr 1988Langbow LimitedBending machines
EP0281488A1 *16 Feb 19887 Sep 1988Eaton Leonard Picot S.A.Turning bending head for a tube-bending machine
EP0432468A2 *10 Nov 199019 Jun 1991Peddinghaus, Carl Ullrich, Dr.Machine for bending steel bars
EP0432468A3 *10 Nov 199011 Sep 1991Peddinghaus, Carl Ullrich, Dr.Machine for bending steel bars
EP0445044A1 *17 Jan 19914 Sep 1991Eaton Leonard Picot S.A.Bending machine with two bending heads
EP1932603A1 *12 Dec 200618 Jun 2008Peter ReimannPipe bending machine for manufacturing meandering pipes and method for manufacturing meandering pipes
US4798073 *15 Dec 198617 Jan 1989Helmut DischlerBending machine for bending bars, channels, sections and the like
US4890469 *17 Jan 19892 Jan 1990Helmut DischlerBending machine for bending bars, channels, sections and the like
US5009097 *17 Nov 198923 Apr 1991M.E.P. Macchine Elettroniche Piegatrici S.P.A.Plant or apparatus utilizing a universal straightening-bending machine
International ClassificationB21D7/022
Cooperative ClassificationB21D7/022
European ClassificationB21D7/022
Legal Events
25 Nov 19828127New person/name/address of the applicant
4 Apr 19858110Request for examination paragraph 44
6 Aug 19878131Rejection