EP0826439A1 - Procédé de pliage d'un tube, dispositif de mise en oeuvre du procédé ainsi que pièce de coin réalisée d'après le procédé - Google Patents
Procédé de pliage d'un tube, dispositif de mise en oeuvre du procédé ainsi que pièce de coin réalisée d'après le procédé Download PDFInfo
- Publication number
- EP0826439A1 EP0826439A1 EP97810627A EP97810627A EP0826439A1 EP 0826439 A1 EP0826439 A1 EP 0826439A1 EP 97810627 A EP97810627 A EP 97810627A EP 97810627 A EP97810627 A EP 97810627A EP 0826439 A1 EP0826439 A1 EP 0826439A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- tube
- pipe
- edge
- bending edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
Definitions
- the invention relates to a method for bending a cross section essentially rectangular, with a protruding one Folded tube, the fold coplanar to one of the Connects to the bending edge of the pipe outer surfaces oriented at right angles and is compressed during the bending process.
- the invention also relates to a device for performing this method and a contra-angle handpiece made according to the method tube rectangular in cross section.
- the invention has for its object a method of mentioned type to create the more even bends and especially corners with a much smaller bending radius enables.
- the method according to the invention is characterized in that before or with the start of the bending process on the bending edge intersecting bisectors of the bending angle of the fold a force is applied and notched, the force in the direction in which the fold is pointing during the bending process has to buckle.
- tubes with a fold so-called flap tubes at right angles be bent, the bending radius being essentially zero. It can be used in particular to produce frames that one frame composed of individual profile pieces very similar are. The production is much easier and therefore cheaper. It has been shown that frames with small masses, for example, from 15 to 10 centimeters with the Processes according to the invention can be produced.
- the inventive The method is particularly suitable for the production of Grid elements, the grid on the inwardly projecting Seam is welded.
- FIG. 1 and 1a show a portion of an elbow, the is made from a tube 1 and has a corner 30, which was produced by bending the tube 1 by 90 °.
- the Pipe is a profiled tube made of sheet metal, with which Fig. 1 apparent cross section.
- the tube 1 is as can be seen in cross section essentially rectangular and flat oval.
- a Fold 2 is substantially coplanar with one perpendicular to the bend edge oriented tube outer surface 4.
- An opposite of the fold 2 Have edge 32 and a subsequent edge 33 a significantly smaller bending radius than a third edge 34.
- the outer surface 4 and the opposite Outer surface 22 much narrower than that too opposite outer surfaces 21 and 23.
- the fold 2 is on its free and straight edge 18 as can be seen with a Strip hump 19 provided.
- the corner 30 connects the two pipe sections 6 and 7, the Edges 18 essentially in the bending center B (Fig. 1a) intersect and on the bisector W each corner 30 one form narrow furrow-like upsetting 31.
- B is essentially the bending radius Zero. Corner 30 is comparable to one corner and two pipe sections provided with miter cuts.
- the elbow formed from the tube 1 is in a preferred one 2, a frame 16, the four right-angled Has corners 30 and on a joint 29 with an inserted Connector 37 is connected.
- a frame 16 In the frame 16 is a Grid 17 used.
- This grid 17 is by spot welding on its edge also on the underside of the strip hump 19 welded on.
- the strip boss 19 enables an accurate and defined spot welding.
- the grid 17 can be different formed and also by a sheet, in particular a perforated sheet 39 or be replaced by a transparent plate 40.
- FIG. 4 show the pipe 1 to be bent, which is for bending around an edge 3 between an edge support 24, first means 8 and second Means 9 is firmly clamped.
- the tube 1 is with the above Means 8 and 24 slidably guided on the pipe section 6, while the second pipe section 7 is held by third means 10 is.
- the first means 8 bring the pipe section 6 into abutment to the bending edge 3, such that the pipe longitudinal axis 5 is at right angles is oriented to the bending edge 3.
- the second means 9 lead the Pipe sections 6 and 7.
- the third means 10 are as mentioned with the pipe section 7, which leads away from the bending edge 3, firmly connected.
- an impact body 25 is arranged on the Bottom has an oblique striking edge 26 and in the direction of the double arrow 27 according to FIG. 4 through an opening 36 of the Means 9 movable against the edge 18 and away from it is.
- This impact body 25 is followed by a powerful one downward movement of the fold 2 acted on the edge 18 and notched.
- the force points in the direction in which the fold 2 has to buckle during the bending process.
- Pipe section 7 pivoted about the bending edge, for example by 90 °. 5 and 6 show the bent tube 1.
- Die Means 8, 9 and 10 and a holder 35 are after the bending process from the bent pipe 1 to carry out a further bending process moved back into a position not shown here.
- the person skilled in the art is familiar with how agents 8 to 9 and 10 and 32 are to be trained and can be moved automatically.
- the Method allows the outer surface 21 to be a frame 16 is at right angles to the plane of the grid 17 or of the sheets 39 and 40.
- a formed from the tube 1 by the method according to the invention Angle piece, in particular a frame 16, stands out on the one hand by a very high stability in the longitudinal direction as well as the sharp and regular corners 30 out.
- the making of a Frame 16 is much easier and less time consuming than the welding of individual miter cut pipe sections.
- the manufacture of the frame 16 is also by the Connect the butt 29 with an inserted connector 37 simplified. Only the grid 17 is welded on what as mentioned above by the cranked fold 2 reliable and can be done safely.
- a preferred product of the invention The method is the grid element 38 shown in FIG. 2, in very different and especially comparative terms small masses can be produced and not only through high stability and light weight, but also by is characterized by a high level of planarity.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH215196 | 1996-09-02 | ||
CH02151/96A CH691795A5 (de) | 1996-09-02 | 1996-09-02 | Verfahren zum Biegen eines Rohres, Vorrichtung zur Durchführung des Verfahrens sowie ein nach dem Verfahren hergestelltes Element. |
CH2151/96 | 1996-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0826439A1 true EP0826439A1 (fr) | 1998-03-04 |
EP0826439B1 EP0826439B1 (fr) | 2003-04-16 |
Family
ID=4227076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97810627A Expired - Lifetime EP0826439B1 (fr) | 1996-09-02 | 1997-09-02 | Procédé de pliage d'un tube, dispositif de mise en oeuvre du procédé ainsi que pièce de coin réalisée d'après le procédé |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0826439B1 (fr) |
AT (1) | ATE237415T1 (fr) |
CH (1) | CH691795A5 (fr) |
DE (1) | DE59709827D1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010078882A2 (fr) * | 2009-01-12 | 2010-07-15 | Wuppermann Rohrtechnik Gmbh | Dispositif et procédé de cintrage d'un profilé et profilé cintré |
DE202018103022U1 (de) * | 2018-05-30 | 2019-09-02 | Grass Gmbh | Wand für ein Möbel oder Möbelteil |
US20220396223A1 (en) * | 2019-11-07 | 2022-12-15 | Auto-Kabel Management Gmbh | Power cable for motor vehicles and a method for bending a power cable for motor vehicles |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1545021A (en) * | 1925-03-18 | 1925-07-07 | George W Wells | Sheet-metal window panel and method of making the same |
US3042099A (en) * | 1959-04-23 | 1962-07-03 | Hoover Ball & Bearing Co | Method of bending tubular members |
US3435511A (en) * | 1966-01-11 | 1969-04-01 | Spectronics Corp | Method of making x-ray cassette |
DE1627479A1 (de) * | 1966-05-16 | 1970-05-14 | Seine Const Elec | Vorrichtung zur Herstellung von gebogenen Winkeleisen,und mit dieser hergestellte Erzeugnisse |
AT283870B (de) * | 1968-04-27 | 1970-08-25 | Junkers & Co | Verfahren zum Bilden ener Ecke an einem Blechzuschnitt und Werkzeug zum Ausüben des Verfahrens |
EP0665357A1 (fr) * | 1994-01-29 | 1995-08-02 | Franz Xaver Bayer Isolierglasfabrik Kg | Procédé et dispositif pour la fabrication d'un cadre espaceur pour vitrages isolants |
-
1996
- 1996-09-02 CH CH02151/96A patent/CH691795A5/de not_active IP Right Cessation
-
1997
- 1997-09-02 AT AT97810627T patent/ATE237415T1/de not_active IP Right Cessation
- 1997-09-02 EP EP97810627A patent/EP0826439B1/fr not_active Expired - Lifetime
- 1997-09-02 DE DE59709827T patent/DE59709827D1/de not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1545021A (en) * | 1925-03-18 | 1925-07-07 | George W Wells | Sheet-metal window panel and method of making the same |
US3042099A (en) * | 1959-04-23 | 1962-07-03 | Hoover Ball & Bearing Co | Method of bending tubular members |
US3435511A (en) * | 1966-01-11 | 1969-04-01 | Spectronics Corp | Method of making x-ray cassette |
DE1627479A1 (de) * | 1966-05-16 | 1970-05-14 | Seine Const Elec | Vorrichtung zur Herstellung von gebogenen Winkeleisen,und mit dieser hergestellte Erzeugnisse |
AT283870B (de) * | 1968-04-27 | 1970-08-25 | Junkers & Co | Verfahren zum Bilden ener Ecke an einem Blechzuschnitt und Werkzeug zum Ausüben des Verfahrens |
EP0665357A1 (fr) * | 1994-01-29 | 1995-08-02 | Franz Xaver Bayer Isolierglasfabrik Kg | Procédé et dispositif pour la fabrication d'un cadre espaceur pour vitrages isolants |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010078882A2 (fr) * | 2009-01-12 | 2010-07-15 | Wuppermann Rohrtechnik Gmbh | Dispositif et procédé de cintrage d'un profilé et profilé cintré |
DE102009004674A1 (de) * | 2009-01-12 | 2010-07-15 | Wuppermann Rohrtechnik Gmbh | Vorrichtung und Verfahren zum Biegen eines Profils und gebogenes Profil |
WO2010078882A3 (fr) * | 2009-01-12 | 2010-09-02 | Wuppermann Rohrtechnik Gmbh | Dispositif et procédé de cintrage d'un profilé et profilé cintré |
DE202018103022U1 (de) * | 2018-05-30 | 2019-09-02 | Grass Gmbh | Wand für ein Möbel oder Möbelteil |
EP3574802A1 (fr) * | 2018-05-30 | 2019-12-04 | Grass GmbH | Paroi pour un meuble ou partie de meuble |
US20220396223A1 (en) * | 2019-11-07 | 2022-12-15 | Auto-Kabel Management Gmbh | Power cable for motor vehicles and a method for bending a power cable for motor vehicles |
Also Published As
Publication number | Publication date |
---|---|
EP0826439B1 (fr) | 2003-04-16 |
CH691795A5 (de) | 2001-10-31 |
DE59709827D1 (de) | 2003-05-22 |
ATE237415T1 (de) | 2003-05-15 |
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