EP0256974B1 - Apparatus for bending concrete reinforcing steel - Google Patents

Apparatus for bending concrete reinforcing steel Download PDF

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Publication number
EP0256974B1
EP0256974B1 EP87810205A EP87810205A EP0256974B1 EP 0256974 B1 EP0256974 B1 EP 0256974B1 EP 87810205 A EP87810205 A EP 87810205A EP 87810205 A EP87810205 A EP 87810205A EP 0256974 B1 EP0256974 B1 EP 0256974B1
Authority
EP
European Patent Office
Prior art keywords
bolt
bending
reinforcing steel
support
lever
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.)
Expired - Lifetime
Application number
EP87810205A
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German (de)
French (fr)
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EP0256974A2 (en
EP0256974A3 (en
Inventor
Helmut Frick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGCO AG
Original Assignee
EGCO AG
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Publication date
Application filed by EGCO AG filed Critical EGCO AG
Priority to AT87810205T priority Critical patent/ATE84453T1/en
Publication of EP0256974A2 publication Critical patent/EP0256974A2/en
Publication of EP0256974A3 publication Critical patent/EP0256974A3/en
Application granted granted Critical
Publication of EP0256974B1 publication Critical patent/EP0256974B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

  • the invention solves the problem with a device for bending a vertical reinforcing steel projecting from a component by approximately 90 °, with a fitting and a pivotally connected to the fitting lever, which is provided with a bending shaft, the device which in the characterizing part of claim 1 features mentioned.
  • 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 leg 3.
  • the fitting 1 is thereby guided along the support leg 3 so as to be vertically displaceable.
  • the support leg 3 has a longitudinal slot 21 through a clamp screw 4 passes through, 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 leg 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 ends in the pivoted-out position of the fitting 6, approximately at the normal shoulder height of a worker. It acts as a power arm when bending by the worker swiveling it towards itself.
  • the moldings 1 and 6 are shown on an enlarged scale.
  • Figure 2 shows it in the swung-out position from the side.
  • the molding 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 in Figures 1,2,3, bent becomes.
  • 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 lies against the wall 13, a shoulder 15 'can be rotated on the bolt 15 on which the shaped piece 6 is pending.
  • 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 molded piece 6, which is pivotably articulated on the pin 15, has a freely rotatable shaft 18 at some distance from the pin 15, which shaft runs parallel to the pin 15. This shaft 18 is advantageously ball-bearing.
  • 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 bends tightly around the bolt 25 becomes. The rotational force of the shaft 18 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 rotatably 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 leg 3.
  • the device is now used as follows: 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 grab the device on the lever 7 and move it to the reinforcing steel to be bent so that it comes to rest in the space formed by the holder 17.
  • the support leg 3 now lies with its foot 22 vertically on a concrete formwork. 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)
  • Heat Treatment Of Steel (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The mechanism for concrete reinforcing bars, partly grouted, provides blending through 90 deg. It has two shaping tools (1,6), swivelable about a bolt (15), forming a swivel and bending axis. The first tool (1) is height adjustable on a support (3) and lockable in position, and has a holder (17) for the bar (16) open to one side whose free space is tangential to the bolt. On the second tool (6) is a freely rotating shaft (18) parallel to and offset from the bolt, and and an actuating arm (7). The tools swivel over a sufficient angle for the shaft to move across the extension of the free space in the holder.

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 fertigbetonierten 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 reinforcement steels, many reinforcement 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 at the end from pre-cast walls or ceiling slabs. After the formwork has been removed, for example from 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 individually at right angles.

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.
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.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.
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.

Aus der DE-U-84'28'220 ist ein Gerät nach dem Oberbegriff des Anspruchs 1 bekannt geworden. Dort handelt es sich um eine Ueberbinderzange zum 90° Abbiegen von Drahtabschnitten. Zum Abbiegen benützt diese Zange einen Grundkörper mit zwei Handgriffen. Dadurch ist diese Zange unhandlich, muss sie doch immer mit zwei Händen gehalten und betätigt werden.From DE-U-84'28'220 a device according to the preamble of claim 1 has become known. There is a connector pliers for 90 ° bending of wire sections. This pliers uses a base body with two handles to turn. This makes the pliers unwieldy, as they always have to be held and operated with two hands.

Ausserdem hängt es von der Geschicklichkeit des Arbeiters ab, ob die Stäbe immer in demselben Abstand oberhalb des Betonteiles abgebogen werden. Aehnliche Nachteile gelten auch für das Biegegerät nach der US-A-2'675'723, welches zum Biegen von Stäben dient, die unten aus einer Decke herausragen, damit daran Träger oder Rohre aufgehängt werden können.
Die vorliegende Erfindung hat sich zur Aufgabe gestellt, die geschilderten Nachteile zu beheben und ein Gerät zu schaffen, welches das Biegen eines Armierungsstahles erleichtert, ungefährlich macht und zudem eine Biegung in immer demselben Abstand oberhalb des Betonteiles, aus dem die Armierungsstäbe vertikal emporragen, ermöglicht.In addition, it depends on the skill of the worker whether the bars are always bent at the same distance above the concrete part. Similar disadvantages also apply to the bending device according to US-A-2'675'723, which is used to bend bars that protrude from a ceiling below so that beams or pipes can be hung from them.
The present invention has set itself the task of eliminating the disadvantages and to provide a device that facilitates the bending of a reinforcing steel, makes it harmless and also allows bending at the same distance above the concrete part from which the reinforcing bars protrude vertically.

Die Erfindung löst die gestellte Aufgabe mit einem Gerät zum Biegen eines vertikal aus einem Bauteil herausragenden einzelnen Armierungsstahles um annähernd 90°, mit einem Formstück und einem mit dem Formstück schwenkbar verbundenen Biegehebel, der mit einer Biegewelle versehen ist, wobei das Gerät die im kennzeichnenden Teil des Patentanspruches 1 genannten Merkmalen aufweist.The invention solves the problem with a device for bending a vertical reinforcing steel projecting from a component by approximately 90 °, with a fitting and a pivotally connected to the fitting lever, which is provided with a bending shaft, the device which in the characterizing part of claim 1 features mentioned.

Eine beispielsweise Ausführung des erfindungsgemässen Gerätes wird in den Zeichnungen dargestellt.
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.
An example embodiment of the device according to the invention is shown in the drawings.
It shows:
Figure 1
overall view of the device;
Figure 2
the two fittings in side view and swiveled out position;
Figure 3
the two fittings in the swiveled position;
Figure 4
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 heinpassendes Vierkantrohr 3 gestülpt ist, das als Stützbein 3 dient. Das Formstück 1 ist dadurch längs dem Stützbein 3 höhenverschiebbar geführt. Das Stützbein 3 weist einen Längsschlitz 21 auf, durch den eine Klemmschraube 4 hindurchführt, 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 dem Stützbein 3 verklemmt. Das Formstück 1 ist deshalb in jeder Höhenlage arretierbar.
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 Schulterhöhe eines Arbeiters endet. Er wirkt beim Biegen als Kraftarm, indem ihn der Arbeiter in Richtung gegen sich schwenkt.
In den Figuren 2 sind die Formstücke 1 und 6 in vergrössertem Massstab gezeigt. Figur 2 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 in den Figuren 1,2,3 strichliniert eingezeichnet ist, gebogen wird. Der Bolzen 15 dient gleichzeitig als Schwenkachse 15 und durchsetzt deshalb das Formstück 6.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 leg 3. The fitting 1 is thereby guided along the support leg 3 so as to be vertically displaceable. The support leg 3 has a longitudinal slot 21 through a clamp screw 4 passes through, 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 leg 3. The fitting 1 can therefore be locked at any height.
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 ends in the pivoted-out position of the fitting 6, approximately at the normal shoulder height of a worker. It acts as a power arm when bending by the worker swiveling it towards itself.
In Figures 2, the moldings 1 and 6 are shown on an enlarged scale. Figure 2 shows it in the swung-out position from the side. The molding 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 in Figures 1,2,3, bent becomes. 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 15' 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.
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.
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 25 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 drehbar am Formstück 6 befestigt. Im Stützbein 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 am Stützbein 3 zu arretieren. Das Gerät wird nun folgendermassen verwendet:
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 heran, dass dieser in den durch die Halterung 17 gebildeten Freiraum zu liegen kommt. Das Stützbein 3 liegt jetzt mit seinem Fuss 22 senkrecht auf einer Betonschalung auf. Nun zieht man den Hebel 7 gegen sich, wodurch der Hebel 7 und das Formstück 6 um den Bolzen 15 geschwenkt werden.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 lies against the wall 13, a shoulder 15 'can be rotated on the bolt 15 on which the shaped piece 6 is pending. 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 molded piece 6, which is pivotably articulated on the pin 15, has a freely rotatable shaft 18 at some distance from the pin 15, which shaft runs parallel to the pin 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.
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 bends tightly around the bolt 25 becomes. The rotational force of the shaft 18 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 rotatably fastened to the shaped piece 6 with a simple hexagon nut 20. In the support leg 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 leg 3. The device is now used as follows:
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 grab the device on the lever 7 and move it to the reinforcing steel to be bent so that it comes to rest in the space formed by the holder 17. The support leg 3 now lies with its foot 22 vertically on a concrete formwork. 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 (4)

  1. Apparatus for bending a single reinforcing steel projecting from a concrete part at approximately 90o, with a shaped part (1) and a bending lever (7) pivotably connected to the shaped part and which is provided with a bending shaft (18), characterized in that the shaped part is constructed as a casing, which is open at the top and bottom, that a bolt (15) constructed as a mandrel and a pivot pin for the bending lever is mounted in both facing side walls (11,13), that the bending shaft (18) is freely rotatable and displaced parallel to the bolt (15), that one side wall (11) is provided with a vertical opening (17) adjacent to the rear wall (12) and to the bolt (15) and which in the bottom (14) of the casing passes into a recess, that said side wall is shaped in such a way that it does not project over the bolt (15) and that externally on the facing side wall (13) at the end furthest removed from the bolt (15) is fitted a vertically adjustable support (2,3) on which the casing is guided and can be locked and which in the apparatus use position is supported on a horizontal surface, so that as a result of the friction occurring at the start of the bending process between a reinforcing steel (16) and the mandrel (15) there is a support moment between the reinforcing steel and the support, which allows a one-handed operation of the lever (7).
  2. Apparatus according to claims 1 and 2, characterized in that the bending shaft (18) is carried in ball bearings.
  3. Apparatus according to claims 1 to 3, characterized in that the vertically adjustable support incorporates a tubular section (2), which is fixed to the shaped part (1) and is inverted over a tube (3) serving as a support leg and is guided thereon, the tubular section (2) being provided with a locking screw (4), which traverses a longitudinal slot (21) in the support leg (3).
  4. Apparatus according to claim 3, characterized in that the tubular section (2) and the support leg (3) are square tubes fitting into one another.
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
CH3267/86A CH670583A5 (en) 1986-08-14 1986-08-14
CH3267/86 1986-08-14

Publications (3)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5653139A (en) * 1995-05-18 1997-08-05 Pacific Benders, Inc. Portable rebar bending device and method
EP2276591B2 (en) * 2008-05-05 2020-01-22 Edgewell Personal Care Brands, LLC Method of making a razor blade
AU2013101432B4 (en) * 2013-10-31 2016-02-04 Creative Living Queensland Pty Ltd A Portable Bending Tool

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

Also Published As

Publication number Publication date
ATE84453T1 (en) 1993-01-15
ES2038206T3 (en) 1993-07-16
EP0256974A2 (en) 1988-02-24
EP0256974A3 (en) 1990-01-31
DE3783537D1 (en) 1993-02-25
DE8708915U1 (en) 1987-09-17
CH670583A5 (en) 1989-06-30

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