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EP0256974A2 - Apparatus for bending concrete reinforcing steel - Google Patents

Apparatus for bending concrete reinforcing steel Download PDF

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Publication number
EP0256974A2
EP0256974A2 EP87810205A EP87810205A EP0256974A2 EP 0256974 A2 EP0256974 A2 EP 0256974A2 EP 87810205 A EP87810205 A EP 87810205A EP 87810205 A EP87810205 A EP 87810205A EP 0256974 A2 EP0256974 A2 EP 0256974A2
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EP
European Patent Office
Prior art keywords
bolt
shaped piece
shaft
support
bending
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
Application number
EP87810205A
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German (de)
French (fr)
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EP0256974B1 (en
EP0256974A3 (en
Inventor
Helmut Frick
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EGCO AG
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EGCO AG
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Publication date
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Priority to AT87810205T priority Critical patent/ATE84453T1/en
Publication of EP0256974A2 publication Critical patent/EP0256974A2/en
Publication of EP0256974A3 publication Critical patent/EP0256974A3/en
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Publication of EP0256974B1 publication Critical patent/EP0256974B1/en
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    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • 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
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B21D7/063—Pliers with forming dies

Definitions

  • Such a device for bending partially concreted, or fastened, individual reinforcing steels by approximately 90 degrees which is characterized in that two shaped pieces (1,6) are pivotally connected to one another via a bolt (15) serving as a pivot and bending axis, the one shaped piece (1) being adjustable in height a support (3) is guided and lockable and has a holder (17) open on one side for receiving the reinforcing steel (16) to be bent, the free space of which tangentially adjoins the bolt (15) that on the other fitting (6) there is a freely rotatable shaft (18) is arranged parallel to the bolt (15), further that on this fitting (6) a lever (7) is attached, which is intended to act as a power arm, while the distance between the pivot axis and shaft (18) as It is determined to act with a low load, and that the two molded parts (1, 6) can be swung apart so far that the shaft (18) completely traverses the extension of the free space formed by the holder (17).
  • the bending device essentially consists of the shaped piece 1, which is welded firmly to a square tube section 2, which is placed over a square tube 3 that fits into it and serves as a support 3.
  • the fitting 1 is thereby guided along the support 3 so as to be vertically displaceable.
  • the support 3 has a longitudinal slot through which a clamping screw 4 passes, which is held in a thread in the pipe section 2.
  • the screw 4 is provided with a lever handle 5, by means of which the screw 4 can be tightened, pressing on the opposite inner wall of the support and thereby clamping the pipe section 2 with the support 3.
  • the fitting 1 can therefore be locked at any height.
  • the second fitting 6 is pivotally connected to the fitting 1.
  • a lever 7 is fastened, which in the pivoted-out position of the fitting 6 is roughly normal height of a worker ends. It acts as a power arm when bending by the worker swiveling it towards itself.
  • FIG 2 the moldings 1 and 6 are shown on an enlarged scale. The illustration shows them in the swung-out position from the side.
  • the fitting 1 is box-shaped with the walls 11, 12 and 13, and the bottom 14. Between the walls 11 and 13, a bolt 15 is arranged, around which the reinforcing steel 16, which is shown in broken lines, is bent. The bolt 15 also serves as a pivot axis 15 and therefore passes through the fitting 6.
  • the thickness of the shaped piece 6 is dimensioned approximately half as large as the distance between the walls 11 and 13 of the shaped piece 1. So that the shaped piece 6 always bears against the wall 13, a shoulder on which the shaped piece 6 is in contact can be turned on the bolt 15 .
  • the bottom 14 and the wall 11 of the molded part 1 have recesses through which a holder 17 is formed, which encloses a free space which is intended to accommodate the reinforcing steel to be bent, as is indicated by the steel drawn in broken lines.
  • the shaped piece 6 pivotably articulated on the pin 15 has at some distance from the bolt 15 on a freely rotatable shaft 18 which runs parallel to the bolt 15.
  • This shaft 18 is advantageously ball-bearing.
  • the bolt 15 and the shaft 18 lie in such a way that the reinforcing steel to be bent can be inserted between them.
  • FIG. 3 now shows the two molded parts 1 and 6 in the swiveled-in position after the bending of the reinforcing steel, again drawn in broken lines, has taken place.
  • the shaft 18 rolls on the outer side of the bend of the steel, while on the inner side of the bend the steel is bent tightly around the bolt 15. Due to the rotatability of the shaft 18, the bending force is considerably reduced.
  • Figure 4 shows the two molded parts 1 and 6 from behind.
  • the bolt 15 is secured to the wall 13 of the fitting 1 by means of a snap ring 19.
  • the shaft 18 is fastened to the shaped piece 6 with a simple hexagon nut 20.
  • the slot 21 can be seen through which the clamping screw 4 is guided.
  • the lever handle 5 allows this screw 4 to be tightened effortlessly in order to lock the shaped piece 1 at any height on the support 3.
  • the device is now used as follows:
  • the desired distance from the exit of the steel to be bent to the bending point is set by means of the height adjustment of the molding 1. With the screw 4 this setting is locked by a handle on the handle lever 5. Now you take the device on the lever 7 and guide it to the reinforcing steel to be bent so that it comes to rest in the space formed by the holder 17. The support 3 now lies with its foot 22 vertically on the concrete base. Now you pull the lever 7 against you, whereby the lever 7 and the fitting 6 are pivoted about the pin 15.
  • the shaft 18 presses on the steel 16, which abuts on the bolt 15 on its other side.
  • the distance between the bolt 15 and the support point of the shaft 18 acts as a load arm.
  • the steel 16 is bent tightly around the bolt 15, while the shaft 18 rolls on the outer side of the bend of the steel 16.
  • the device is simply lifted away to the side, the lever 7 is pivoted back and the device is attached to the next steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Bridges Or Land Bridges (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Das Gerät besteht aus zwei gegeneinander schwenkbar an einem Bolzen gelagerten Formstücken (1,6). Das eine Formstück (1) ist höhenverstellbar und arretierbar an einer Stütze (3) geführt. Es weist einen Bolzen (15) auf, um den der Stahl (16) gebogen wird. Tangential an den Bolzen (15) anschliessend ist durch die Halterung 17 gebildet, ein Freiraum im Formstück (1) angeordnet, der zur Aufnahme des zu biegenden Stahls (16) dient. Das Formstück (6) ist schwenkbar am Bolzen (15) gelagert. Es weist eine Welle (18) auf, die beim Biegen auf der äusseren Seite der Biegung abrollt. Zur Reduzierung der erforderlichen Biegekraft ist am Formstück (6) ein Hebel (7) als Kraftarm befestigt.The device consists of two fittings (1, 6) that can be pivoted against each other on a bolt. One fitting (1) is adjustable in height and can be locked on a support (3). It has a bolt (15) around which the steel (16) is bent. Tangential to the bolt (15) is then formed by the holder 17, a free space is arranged in the molding (1), which serves to accommodate the steel (16) to be bent. The shaped piece (6) is pivotally mounted on the bolt (15). It has a shaft (18) that rolls on the outer side of the bend during bending. To reduce the required bending force, a lever (7) is attached to the fitting (6) as a force arm.

Description

Trotz industriell gebogenen, vorgefertigten Armierungs­stählen müssen auf Baustellen noch viele Armierungsstähle endseitig abgebogen werden. Ein sehr häufig und regel­mässig vorkommendes Beispiel ist das Abbiegen von Armie­rungsstählen, welche endseitig annähernd senkrecht aus ferigbetonierten Wänden oder Deckenplatten herausragen. Nach dem Abschalen zum Beispiel einer fertigbetonierten Wand wird die Schalung für die darauf zu liegen kommende Deckenplatte erstellt. Um die Armierung der Wand direkt in die zu erstellende Deckenplatte hineinzuführen, sodass diese beiden Elemente kraftschlüssig über eine durchge­hende Armierung miteinander verbunden sind, müssen die oben aus der betonierten Wand herausragenden Stähle ein­zeln rechtwinklig abgebogen werden.Despite industrially bent, prefabricated reinforcing steels, many reinforcing steels still have to be bent at the end on construction sites. A very common and regularly occurring example is the bending of reinforcing steels, which protrude almost vertically from the concrete walls or ceiling slabs. After shuttering, for example, a concrete wall, the formwork is created for the ceiling slab to be placed on it. In order to insert the reinforcement of the wall directly into the ceiling slab to be created, so that these two elements are non-positively connected by a continuous reinforcement, the steels protruding from the concrete wall at the top must be bent at a right angle.

In der Praxis werden diese Stähle von Hand abgebogen. Die Eisenleger ergreifen hierzu die Armierungstähle in Nähe ihrer Enden, um die herausragende Länge als Hebel wirken zu lassen. Es ist klar, dass ein solchermassen vorge­nommenes Abbiegen weder einen scharfen Biegepunkt noch einen rechten Winkel erzeugt. Vielmehr hat der abgebogene Stahl am Schluss die Form einer Parabel, wobei der klein­ste Krümmungsradius und somit auch der Biegepunkt sich beim Austritt des Stahles aus dem Beton befindet. Das hat zur Folge, dass die obere, äussere Kante der zu betonie­renden Deckenplatte ungenügend mit Armierungsstahl durch­setzt ist. Die Kanten von solchermassen erstellten Platten bröckeln deshalb oft ab, wenn sie der Witterung oder mechanischen Einwirkungen ausgesetzt sind.In practice, these steels are bent by hand. For this purpose, the iron layer grips the reinforcing steels near their ends in order to allow the outstanding length to act as a lever. It is clear that such a bend does not produce a sharp bend point or a right angle. Rather, the bent steel has the shape of a parabola at the end, with the smallest radius of curvature and thus also the bending point being when the steel emerges from the concrete. As a result, the upper, outer edge of the concrete slab to be concreted is insufficiently reinforced with reinforcing steel. The edges of panels made in this way therefore often crumble when exposed to the weather or mechanical influences.

Weiter ist auch der Arbeitsvorgang des Abbiegens von Hand mühsam und nicht ungefährlich, federn doch die Stähle nach, weil sie in einem grossen Bereich gebogen werden. Es ist die Aufgabe der vorliegenden Erfindung, die ge­schilderten Nachteile zu beheben, indem sie ein Gerät zum Biegen von Armierungsstählen schafft, mit dessen Hilfe das Biegen vereinfacht wird und technisch korrekte Bie­gungen erzielt werden. Die Aufgabe wird gelöst von einem solchen Gerät zum Biegen von teilweise einbetonierten, beziehungsweise befestigten, einzelnen Armierungsstählen um annähernd 90 Grad, das sich dadurch auszeichnet, dass zwei Formstücke (1,6) über einen als Schwenk- und Bie­geachse dienender Bolzen (15) gegeneinander schwenkbar miteinander verbunden sind, wobei das eine Formstück (1) höhenverstellbar an einer Stütze (3) geführt und arre­tierbar ist und eine einseitig offene Halterung (17) zur Aufnahme des zu biegenden Armierungsstahls (16) aufweist, deren Freiraum tangential an den Bolzen (15) angrenzt, dass am anderen Formstück (6) eine frei drehbare Welle (18) parallel zum Bolzen (15) verschoben angeordnet ist, ferner dass an diesem Formstück (6) ein Hebel (7) ange­bracht ist, welcher dazu bestimmt ist, als Kraftarm zu wirken, während die Distanz zwischen Schwenkachse und Welle (18) als Lastarm zu wirken bestimmt ist, und dass die beiden Formteile (1,6) so weit auseinanderschwenkbar sind, dass die Welle (18) die Verlängerung des durch die Halterung (17) gebildeten Freiraumes ganz durchquert. Eine beispielsweise Ausführung des erfindungsgemässen Gerätes wird in den Zeichnungen dargestellt.The process of turning by hand is also tedious and not harmless, since the steels spring back because they are bent in a large area. It is the object of the present invention to remedy the disadvantages described by providing a device for bending reinforcing steels, with the aid of which bending is simplified and technically correct bends are achieved. The object is achieved by such a device for bending partially concreted, or fastened, individual reinforcing steels by approximately 90 degrees, which is characterized in that two shaped pieces (1,6) are pivotally connected to one another via a bolt (15) serving as a pivot and bending axis, the one shaped piece (1) being adjustable in height a support (3) is guided and lockable and has a holder (17) open on one side for receiving the reinforcing steel (16) to be bent, the free space of which tangentially adjoins the bolt (15) that on the other fitting (6) there is a freely rotatable shaft (18) is arranged parallel to the bolt (15), further that on this fitting (6) a lever (7) is attached, which is intended to act as a power arm, while the distance between the pivot axis and shaft (18) as It is determined to act with a low load, and that the two molded parts (1, 6) can be swung apart so far that the shaft (18) completely traverses the extension of the free space formed by the holder (17). An example embodiment of the device according to the invention is shown in the drawings.

Es zeigt:

  • Figur 1 das Gerät in Gesamtansicht;
  • Figur 2 die beiden Formstücke in Seitenansicht und aus­geschwenkter Lage;
  • Figur 3 die beiden Formstücke in zugeschwenkter Lage;
  • Figur 4 die beiden Formteile von hinten.
It shows:
  • Figure 1 shows the device in overall view;
  • Figure 2 shows the two fittings in side view and pivoted position;
  • Figure 3 shows the two fittings in the swiveled position;
  • Figure 4 shows the two molded parts from behind.

Wie die Gesamtansicht in Figur 1 zeigt, besteht das Bie­gegerät im wesentlichen aus dem Formstück 1, das fest mit einem Vierkantrohrabschnitt 2 verschweisst ist, welcher über ein in ihn hineinpassendes Vierkantrohr 3 gestülpt ist, das als Stütze 3 dient. Das Formstück 1 ist dadurch längs der Stütze 3 höhenverschiebbar geführt. Die Stütze 3 weist einen Längsschlitz auf, durch den eine Klemm­schraube 4 führt, welche in einem Gewinde im Rohrab­schnitt 2 gehalten ist. Die Schraube 4 ist mit einem He­belgriff 5 versehen, mittels dem die Schraube 4 fest­ziehbar ist, wobei sie auf die gegenüberliegende Innen­wand der Stütze drückt und dadurch den Rohrabschnitt 2 mit der Stütze 3 verklemmt. Das Formstück 1 ist deshalb in jeder Höhenlage arretierbar.As the overall view in FIG. 1 shows, the bending device essentially consists of the shaped piece 1, which is welded firmly to a square tube section 2, which is placed over a square tube 3 that fits into it and serves as a support 3. The fitting 1 is thereby guided along the support 3 so as to be vertically displaceable. The support 3 has a longitudinal slot through which a clamping screw 4 passes, which is held in a thread in the pipe section 2. The screw 4 is provided with a lever handle 5, by means of which the screw 4 can be tightened, pressing on the opposite inner wall of the support and thereby clamping the pipe section 2 with the support 3. The fitting 1 can therefore be locked at any height.

Das zweite Formstück 6 ist schwenkbar mit dem Formstück 1 verbunden. An diesem Formstück 6, welches zum Biegen geschwenkt wird, ist ein Hebel 7 befestigt, der in ausge­schwenkter Lage des Formstücks 6 etwa auf normaler Schul­ terhöhe eines Arbeiters endet. Er wirkt beim Biegen als Kraftarm, indem ihn der Arbeiter in Richtung gegen sich schwenkt.The second fitting 6 is pivotally connected to the fitting 1. On this fitting 6, which is pivoted for bending, a lever 7 is fastened, which in the pivoted-out position of the fitting 6 is roughly normal height of a worker ends. It acts as a power arm when bending by the worker swiveling it towards itself.

In Figur 2 sind die Formstücke 1 und 6 in vergrössertem Massstab gezeigt. Die Darstellung zeigt sie in ausge­schwenkter Lage von der Seite. Das Formstück 1 ist ka­stenförmig ausgebildet mit den Wänden 11,12 und 13, sowie dem Boden 14. Zwischen den Wänden 11 und 13 ist ein Bol­zen 15 angeordnet, um den der Armierungsstahl 16, welcher strichliniert eingezeichnet ist, gebogen wird. Der Bolzen 15 dient gleichzeitig als Schwenkachse 15 und durchsetzt deshalb das Formstück 6.In Figure 2, the moldings 1 and 6 are shown on an enlarged scale. The illustration shows them in the swung-out position from the side. The fitting 1 is box-shaped with the walls 11, 12 and 13, and the bottom 14. Between the walls 11 and 13, a bolt 15 is arranged, around which the reinforcing steel 16, which is shown in broken lines, is bent. The bolt 15 also serves as a pivot axis 15 and therefore passes through the fitting 6.

Die Dicke des Formstückes 6 ist ungefähr halb so gross bemessen wie der Abstand zwischen den Wänden 11 und 13 des Formstückes 1. Damit das Formstück 6 stets an der Wand 13 anliegt, kann am Bolzen 15 ein Absatz gedreht sein, an dem das Formstück 6 ansteht. Der Boden 14, sowie die Wand 11 des Formstücks 1 weisen Ausnehmungen auf, durch die eine Halterung 17 gebildet wird, welche einen Freiraum umschliesst, der dazu bestimmt ist, den zu bie­genden Armierungsstahl aufzunehmen, wie das durch den strichliniert eingezeichneten Stahl angedeutet ist.The thickness of the shaped piece 6 is dimensioned approximately half as large as the distance between the walls 11 and 13 of the shaped piece 1. So that the shaped piece 6 always bears against the wall 13, a shoulder on which the shaped piece 6 is in contact can be turned on the bolt 15 . The bottom 14 and the wall 11 of the molded part 1 have recesses through which a holder 17 is formed, which encloses a free space which is intended to accommodate the reinforcing steel to be bent, as is indicated by the steel drawn in broken lines.

Das schwenkbar am Bolzen 15 angelenkte Formstück 6 weist in einigem Abstand vom Bolzen 15 eine frei drehbare Welle 18 auf, welche parallel zum Bolzen 15 verläuft. Diese Welle 18 ist mit Vorteil kugelgelagert. In ausgeschwenk­ter Lage der beiden Formteile 1 und 6 liegen der Bolzen 15 und die Welle 18 so, dass zwischen sie der zu biegende Armierungsstahl eingelegt werden kann.The shaped piece 6 pivotably articulated on the pin 15 has at some distance from the bolt 15 on a freely rotatable shaft 18 which runs parallel to the bolt 15. This shaft 18 is advantageously ball-bearing. In the swiveled-out position of the two molded parts 1 and 6, the bolt 15 and the shaft 18 lie in such a way that the reinforcing steel to be bent can be inserted between them.

Figur 3 zeigt nun die beiden Formteile 1 und 6 in zuge­schwenkter Lage nach erfolgter Biegung des wiederum strichliniert eingezeichneten Armierungsstahls. Während des Biegevorgangs rollt die Welle 18 auf der äusseren Seite der Biegung des Stahls ab, während auf der inneren Seite der Biegung der Stahl satt um den Bolzen 15 gebogen wird. Durch die Drehbarkeit der Welle 18 wird die Bie­gekraft erheblich reduziert. Figur 4 zeigt die beiden Formteile 1 und 6 von hinten. Der Bolzen 15 ist an der Wand 13 des Formstücks 1 mittels einem Seger- Siche­rungsring 19 gesichert. Die Welle 18 ist mit einer einfa­chen Sechskantmutter 20 am Formstück 6 befestigt. In der Stütze 3 ist der Schlitz 21 erkennbar, durch den die Klemmschraube 4 geführt ist. Der Hebelgriff 5 gestattet das mühelose Festziehen dieser Schraube 4, um das Form­stück 1 in beliebiger Höhe an der Stütze 3 zu arretieren. Das Gerät wird nun folgendermassen verwendet:FIG. 3 now shows the two molded parts 1 and 6 in the swiveled-in position after the bending of the reinforcing steel, again drawn in broken lines, has taken place. During the bending process, the shaft 18 rolls on the outer side of the bend of the steel, while on the inner side of the bend the steel is bent tightly around the bolt 15. Due to the rotatability of the shaft 18, the bending force is considerably reduced. Figure 4 shows the two molded parts 1 and 6 from behind. The bolt 15 is secured to the wall 13 of the fitting 1 by means of a snap ring 19. The shaft 18 is fastened to the shaped piece 6 with a simple hexagon nut 20. In the support 3, the slot 21 can be seen through which the clamping screw 4 is guided. The lever handle 5 allows this screw 4 to be tightened effortlessly in order to lock the shaped piece 1 at any height on the support 3. The device is now used as follows:

Erst wird mittels der Höhenverstellung des Formstücks 1 der gewünschte Abstand vom Austritt des zu biegenden Stahls bis zur Biegestelle eingestellt. Mit der Schraube 4 wird diese Einstellung durch einen Handgriff am Griff­hebel 5 arretiert. Nun ergreift man das Gerät am Hebel 7 und führt es so an den zu biegenden Armierungsstahl, dass dieser in den durch die Halterung 17 gebildeten Freiraum zu liegen kommt. Die Stütze 3 liegt jetzt mit ihrem Fuss 22 senkrecht auf der Betonunterlage auf. Nun zieht man den Hebel 7 gegen sich, wodurch der Hebel 7 und das Formstück 6 um den Bolzen 15 geschwenkt werden.First, the desired distance from the exit of the steel to be bent to the bending point is set by means of the height adjustment of the molding 1. With the screw 4 this setting is locked by a handle on the handle lever 5. Now you take the device on the lever 7 and guide it to the reinforcing steel to be bent so that it comes to rest in the space formed by the holder 17. The support 3 now lies with its foot 22 vertically on the concrete base. Now you pull the lever 7 against you, whereby the lever 7 and the fitting 6 are pivoted about the pin 15.

Hierbei drückt die Welle 18 auf den Stahl 16, welcher auf seiner anderen Seite am Bolzen 15 anliegt. Die Distanz zwischen dem Bolzen 15 und dem Auflagepunkt der Welle 18 wirkt als Lastarm. Während des Schwenkens wird der Stahl 16 satt um den Bolzen 15 gebogen, während die Welle 18 auf der äussern Seite der Biegung des Stahls 16 abrollt. Nach erfolgtem Biegevorgang wird das Gerät einfach seit­lich weggehoben, der Hebel 7 zurückgeschwenkt und das Gerät am nächsten Stahl angesetzt.Here, the shaft 18 presses on the steel 16, which abuts on the bolt 15 on its other side. The distance between the bolt 15 and the support point of the shaft 18 acts as a load arm. During the pivoting, the steel 16 is bent tightly around the bolt 15, while the shaft 18 rolls on the outer side of the bend of the steel 16. After the bending process has been completed, the device is simply lifted away to the side, the lever 7 is pivoted back and the device is attached to the next steel.

Claims (5)

1. Gerät zum Biegen von teilweise einbetonierten, bezie­hungsweise befestigten, einzelnen Armierungsstählen um annähernd 90 Grad, dadurch gekennzeichnet, dass zwei Formstücke (1,6) über einen als Schwenk- und Biege­achse dienenden Bolzen (15) gegeneinander schwenkbar miteinander verbunden sind, wobei das eine Formstück (1) höhenverstellbar an einer Stütze (3) geführt und arretierbar ist und eine einseitig offene Halterung (17) zur Aufnahme des zu biegenden Armierungsstahls (16) aufweist, deren Freiraum tangential an den Bolzen (15) angrenzt, dass am anderen Formstück (6) eine frei drehbare Welle (18) parallel zum Bolzen (15) verscho­ben angeordnet ist, ferner dass an diesem Formstück (6) ein Hebel (7) angebracht ist, welcher dazu be­stimmt ist, als Kraftraum zu wirken, während die Di­stanz zwischen Schwenkachse und Welle (18) als Lastarm zu wirken bestimmt ist, und dass die beiden Formteile (1,6) so weit auseinanderschwenkbar sind, dass die Welle die Verlängerung des durch die Halterung (17) gebildeten Freiraums ganz durchquert.1. Apparatus for bending partially reinforced or fastened, individual reinforcing steels by approximately 90 degrees, characterized in that two shaped pieces (1,6) are pivotally connected to one another via a bolt (15) serving as a pivot and bending axis, the A shaped piece (1) is adjustable in height on a support (3) and can be locked and has a holder (17) open on one side for receiving the reinforcing steel (16) to be bent, the free space of which adjoins the bolt (15) tangentially that on the other shaped piece (6) a freely rotatable shaft (18) is arranged parallel to the bolt (15), further that a lever (7) is attached to this shaped piece (6), which is intended to act as a weight space while the distance between The pivot axis and shaft (18) is intended to act as a load arm, and that the two molded parts (1, 6) can be pivoted apart so far that the shaft is the extension of the bracket (17 ) completely formed free space. 2. Gerät nach Anspruch 2, dadurch gekennzeichnet, dass das Formstück 1 kastenförmig ausgebildet ist, wobei die Halterung durch eine Ausnehmung in einer Wand (11) und einem Schlitz im Boden (14) des Kastens gebildet ist.2. Apparatus according to claim 2, characterized in that the shaped piece 1 is box-shaped, the holder being formed by a recess in a wall (11) and a slot in the bottom (14) of the box. 3. Gerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Welle (18) kugelgelagert ist.3. Device according to claim 1 or 2, characterized in that the shaft (18) is ball-bearing. 4. Gerät nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Höhenverstellbarkeit des Formstückes (1) ge­geben ist durch einen Rohrabschnitt (2), welcher fest mit dem Formstück (1) verbunden ist und über ein als Stütze (3) dienendes Rohr (3) gestülpt und darauf ge­führt ist, wobei der Rohrabschnitt (2) mit einer Arre­tierschraube (4) versehen ist, welche durch einen längs im Stützrohr (3) verlaufenden Schlitz geführt ist.4. Apparatus according to claim 1 to 3, characterized in that the height adjustability of the shaped piece (1) is given by a pipe section (2) which is fixedly connected to the shaped piece (1) and via a tube (3) serving as a support ( 3) is slipped and guided thereon, the tube section (2) being provided with a locking screw (4) which is guided through a slot running lengthwise in the support tube (3). 5. Gerät nach Anspruch 4, dadurch gekennzeichnet, dass der Rohrabschnitt (2) und das Stützrohr (3) ineinanderpassende Vierkantrohre sind.5. Apparatus according to claim 4, characterized in that the tube section (2) and the support tube (3) are mutually fitting square tubes.
EP87810205A 1986-08-14 1987-04-03 Apparatus for bending concrete reinforcing steel Expired - Lifetime EP0256974B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87810205T ATE84453T1 (en) 1986-08-14 1987-04-03 DEVICE FOR BENDING REINFORCEMENT STEEL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3267/86 1986-08-14
CH3267/86A CH670583A5 (en) 1986-08-14 1986-08-14

Publications (3)

Publication Number Publication Date
EP0256974A2 true EP0256974A2 (en) 1988-02-24
EP0256974A3 EP0256974A3 (en) 1990-01-31
EP0256974B1 EP0256974B1 (en) 1993-01-13

Family

ID=4252281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810205A Expired - Lifetime EP0256974B1 (en) 1986-08-14 1987-04-03 Apparatus for bending concrete reinforcing steel

Country Status (5)

Country Link
EP (1) EP0256974B1 (en)
AT (1) ATE84453T1 (en)
CH (1) CH670583A5 (en)
DE (2) DE3783537D1 (en)
ES (1) ES2038206T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0844917A4 (en) * 1995-05-18 1998-07-08
RU2267399C1 (en) * 2004-05-11 2006-01-10 Сергей Михайлович Анпилов Cutting and bending apparatus for reinforcements
AU2013101432B4 (en) * 2013-10-31 2016-02-04 Creative Living Queensland Pty Ltd A Portable Bending Tool
US20160167104A1 (en) * 2008-05-05 2016-06-16 Edgewell Personal Care Brands Llc Method of making a bent razor blade

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675723A (en) * 1954-04-20 Pivoted rod bending hand tool
FR1505858A (en) * 1966-12-20 1967-12-15 Device for simultaneously bending several metal elements such as tubes, reinforcing bars, profiles or others
US3732721A (en) * 1971-06-23 1973-05-15 Cusimano Tool Dev Corp Portable apparatus for forming bends in concrete reinforcing rods
SE8104572L (en) * 1981-07-28 1983-01-29 Englund Thomas U Y UPPBERNINGSANORDNING
FR2549399B1 (en) * 1983-07-19 1985-11-29 Mure Ets TOOL FOR STRAIGHTENING OR SHAPING PROFILES, ESPECIALLY FRAMEWORK, RECESSED AT AN END
DE8428220U1 (en) * 1984-09-26 1984-11-29 Meyer, Walter, 2000 Hamburg Tie pliers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0844917A4 (en) * 1995-05-18 1998-07-08
RU2267399C1 (en) * 2004-05-11 2006-01-10 Сергей Михайлович Анпилов Cutting and bending apparatus for reinforcements
US20160167104A1 (en) * 2008-05-05 2016-06-16 Edgewell Personal Care Brands Llc Method of making a bent razor blade
US10413962B2 (en) 2008-05-05 2019-09-17 Edgewell Personal Care Brands, Llc Method of making a bent razor blade
AU2013101432B4 (en) * 2013-10-31 2016-02-04 Creative Living Queensland Pty Ltd A Portable Bending Tool

Also Published As

Publication number Publication date
EP0256974B1 (en) 1993-01-13
DE3783537D1 (en) 1993-02-25
ATE84453T1 (en) 1993-01-15
DE8708915U1 (en) 1987-09-17
EP0256974A3 (en) 1990-01-31
ES2038206T3 (en) 1993-07-16
CH670583A5 (en) 1989-06-30

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