EP0704013B1 - Vorrichtung zum verbinden von uebereinanderliegenden armierungsstaeben - Google Patents

Vorrichtung zum verbinden von uebereinanderliegenden armierungsstaeben Download PDF

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Publication number
EP0704013B1
EP0704013B1 EP94918606A EP94918606A EP0704013B1 EP 0704013 B1 EP0704013 B1 EP 0704013B1 EP 94918606 A EP94918606 A EP 94918606A EP 94918606 A EP94918606 A EP 94918606A EP 0704013 B1 EP0704013 B1 EP 0704013B1
Authority
EP
European Patent Office
Prior art keywords
staple
piece
form piece
rods
legs
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
EP94918606A
Other languages
English (en)
French (fr)
Other versions
EP0704013A1 (de
Inventor
John Peter Cornelis De Roo
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.)
Technische Handelsonderneming Gadon BV
Original Assignee
Technische Handelsonderneming Gadon BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Technische Handelsonderneming Gadon BV filed Critical Technische Handelsonderneming Gadon BV
Publication of EP0704013A1 publication Critical patent/EP0704013A1/de
Application granted granted Critical
Publication of EP0704013B1 publication Critical patent/EP0704013B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/122—Machines for joining reinforcing bars
    • E04G21/123—Wire twisting tools
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/122—Machines for joining reinforcing bars

Definitions

  • the invention relates to a device for securing superimposed reinforcing rods by means of a length of wire that has been preformed into a substantially U-shaped staple, comprising a form piece with a U-shaped forming surface that is adapted to the staple, and with a casing having a receiving chamber for a staple located adjacent the opening of said U-shaped forming surface, the form piece and the casing being mounted so as to be mutually turned between an open position allowing two superimposed rods to be received in the space between the legs of the U-shaped forming surface and a closed position, in which the received rods are locked around, said casing accommodating a stamp adapted to be moved - under control of a piston cylinder device and while said casing and said form piece are in said mutually closed position - through said receiving chamber, towards the cross piece of the U-shaped forming surface of the form piece to press the staple - with its legs directed forwardly - fran the receiving chamber into the form space of the form piece around the pair of rods contained therein, guiding
  • Such a device is disclosed in DE-A-3223090 (vide in particular the embodiment according to fig. 15).
  • the form piece is provided in a rather elongated member, which forms - together with the casing that is also provided in a rather elongated element - a pair of pincers, the lower and upper jaws of which are formed by the form piece and the casing respectively.
  • the pincer-like device In the opened position the pincer-like device is applied with its lower jaw extending below the two superimposed reinforcing rods so as to receive these rods into the forming space confined by the U-shaped forming surface.
  • NL-A-48839 discloses a device - in the form of a pair of pincers - for fastening a tendril of a plant to a suspension wire of cord that extends through a greenhouse.
  • the fastening is effected by means of a split ring which is to be closed around the tendril and suspension wire.
  • the pair of pincers is placed around the tendril and suspension wire, after which the pincers are completely closed to squeeze and close the ring around the tendril and suspension wire.
  • the squeezing of the split ring is effected in a direction transverse to the axis of the U-shaped form piece.
  • DE-A-3524821 discloses a device for securing cross-wise superimposed reinforcing rods, in wich a form piece is used wich consists of two hook-shaped portions. This device may also be used in case of relatively "fine-mesh" reinforcing nets.
  • this well-known device the two hook-shaped forming portions are placed straddlingly over the upper one of the two crossing reinforcing rods and then hooked from under the lowermost reinforcing rod, after which the free end portions of the preformed staple are bent along the semi-circular inner forming surface of the hook-shaped forming portions and around the lowermost reinforcing rod in planes which are directed perpendicular to the plane of the staple. Consequently another type of connetion is involved with this well-known device, which cannot be used for securing superimposed reinforcing rods that extend in the same direction.
  • the invention aims at providing an improved devioe of the type above referred to which may be simply applied, with the form piece in the open position, around two superimposed reinforcing rods, even in case of a "fine-mesh" reinforcing net.
  • the present invention provides a device as defined in the first part of claim 1, which is characterized by the features mentioned in the characteristic clause of claim 1.
  • a device constructed in accordance with the invention may be simply applied - with the form piece in the open position - around the two superimposed reinforcing rods, even in case of a "fine-wesh" reinforcing net.
  • two cross-wise superimposed reinforcing rods are designated by dash-dotted lines W. 1 designates a substantially U-shaped form piece, the legs 2 of which extend from below upwardly through two opposite angles between the two cross-wise superimposed reinforcing rods.
  • the legs 2 merge along an arc into the cross piece 3 of the U and have beveled edges 2a.
  • the opposite faces of the legs 2 are provided with guiding grooves 4. These guiding grooves continue in the cross-piece 3 and simultaneously deflect laterally from the plane of the U. Consequently the guiding groove portions 4a in the cross piece 3 extend laterally along one another.
  • the guiding grooves 4, 4a have e.g. a semi-circular cross-section and function to guide the legs K1 of a substantially U-shaped staple K.
  • This staple is pushed from above - with its free leg ends directed downwardly - (vide the arrow direction) into the space between the legs 2 of the form piece 1 by means of a stamp member 5 that acts on the cross piece K2 of the staple K.
  • the staple legs K1 while moving through the guiding groove portions 4a - gradually bend inwardly and simultaneously deflect laterally from the plane of the K to spread apart.
  • the so deformed staple K gets pressed with its cross piece K2 upon the upper one of the two superimposed rods W, while the bent end portions of the legs K1 of the staple K get pressed around the lower one of the two rods on both sides of the crossing point.
  • the U-shaped form piece 1 is divided along a midplane perpendicular to the plane of the U and consequently consists of two J-shaped halves or jaws 6 and 7.
  • These jaws 6, 7 are pivotally connected about an axis 8 that is positioned within said midplane at a distance above the cross piece of the U.
  • the jaws 6, 7 may thus move one relative to the other between a closed position corresponding with the position of U-shaped form piece 1 in fig. 1 and an open position, in which the form piece 1 may be placed - with the open jaws - down over superimposed reinforcing rods W.
  • the two jaws interlockingly engage one another by means of a centering hole and a corresponding centering projection 9 and 9a respectively.
  • the jaw 6 is a fixed jaw, in the sense, that this jaw is extended at its upper end and fastened to the lower end wall 11 of a pneumatic actuating cylinder 10, the upper end wall 12 of which is connected to a carrying rod 13 provided with a handle 14.
  • a staple supply magazine comprising upper and bottom walls 16, sidewalls 17 and an end wall 18, which is also fixedly connected to the cylinder end wall 11.
  • the end wall 18 carries the pivot axis 8, about which the second jaw 7 is pivotally mounted through a laterally slightly offset arm 19.
  • the pressurized air connection for operating the piston 20 has not been shown.
  • the pressurized air supply may be e.g. controlled by means of a control valve provided on or adjacent the handle 14 and equipped with an appropriate actuating button.
  • the piston 20, which may be moved against the action of a pressure spring 21, is pivotally connected at 22 to the stamp member 5, that extends with its lower end through a slot 23 in the lower cylinder end wall 11 into a chamber at the end of the magazine 15.
  • Said chamber, the cross-sectional area of which corresponds with that of the slot 23 in the cylinder end wall 11, is delimited by the end wall 18 and the sidewalls 17 of the magazine and has on the bottom side a passage slot 24 towards the space between the legs (jaws) of the U-shaped form piece 1, said passage 24 corresponding with the passage slot 23 in the cylinder end wall 10.
  • a control means 25 of the Bowden cable type is provided for opening and closing the jaws 6 and 7.
  • the stationary sheath 26 of this control cable is secured to the carrying rod 13 and the upper cylinder end wall 12 at 27 and 28 respectively, whereas the cable core 29 is, at 30, connected to a manually operated lever 32 that is pivotally connected at 31 to the handle 14, and, on the other hard, is connected at 33 to the free end of the arm 16, to which the movable jaw 7 is secured.
  • the pressure spring 34 holds the jaw 7 in the opened position. In this position the device may thus be placed down over a pair of superimposed reinforcing rods so as to secure the latter together.
  • the jaws 6, 7 and the U-shaped form piece 1 may then be closed around the reinforcing rods to be secured by squeezing the lever 32.
  • the piston 20 is in its upper position, with the lower end of the stamp member 5 resting on the cross piece of the foremost staple of the staple supply within the chamber, i.e. ready to perform an operative stroke.
  • pressurized air is supplied to move the piston 20 and thereby the stamp member 5 downwardly.
  • An interruption of the pressurized air supply causes the piston 20 and thereby the stamp member 5 to return to the upper or starting position, so that the magazine spring 35 may push a next staple, positioned at the foremost end of the magazine supply, into the chamber.
  • a release of the lever 32 causes the jaws 6, 7 to open, after which the device may be removed from the secured rods and transferred to a next securing location.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wire Processing (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Paper (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Claims (2)

  1. Vorrichtung zum Verbinden von übereinanderliegenden Bewehrungsstäben (W) mittels eines zu einer etwa U-förmigen Klammer (K) vorgeformten Drahtstückes, umfassend ein Formstück (1)
    mit einer der Klammer (K) entsprechenden U-förmigen Formfläche und
    mit einem Gehäuse (15), das im Gebiet der Öffnung der U-förmigen Formfläche eine Aufnahme (15a) für eine Klammer (K) aufweist,
    welches Formstück (1) und welches Gehäuse (15) untereinander drehbar sind zwischen
    einer geöffneten Lage, in der zwei übereinanderliegenden Stäbe (W) im Raum zwischen den Schenkeln (2) der U-förmigen Formfläche aufgenommen werden können und
    einer geschlossenen Lage, in der die aufgenommenen Stäbe (W) ringsherum eingeschlossen sind,
    welches Gehäuse (15) einen Stempel (5) enthält, der - unter Steuerung einer Kolben-Zylindervorrichtung (10) und während das Gehäuse und das Formstück ihre gegenseitige Schliesslage einnehmen - durch die Aufnahme (15a) hindurch gegen den Steg (3) der U-förmigen Formfläche des Formstückes (1) bewegbar ist in der Weise, dass die Klammer (K) - mit den Schenkeln (K1) nach vorne gerichtet - aus der Aufnahme (15a) in den Formraum des Formstückes (1) um die zwei in diesem vorhandenen Stäbe (W) gepresst wird,
    wobei an der Innenseite der Schenkel (2) und des Steges (3) der Formfläche Führungsnuten (4, 4a) vorgesehen sind, welche die Klammerschenkel (K1) innerhalb des Steges (3) des Formstückes (1) gegeneinander oder aneinandervorbei führen,
       dadurch gekennzeichnet, dass das Formstück (1) in der Gestalt eines U-förmigen Bügels (6, 7) ausgebildet ist, welcher gemäss der senkrecht zur Bügelebene liegenden Symmetrie-Ebene geteilt ist, wobei der eine Bügelabschnitt (6), das Gehäuse (15) und die Kolben-Zylindervorrichtung (10) insgesamt mit einer sich von der Kolben-Zylindervorrichtung etwa gemäss der Symmetrie-Achse des Formstückes (1) nach oben erstreckenden Tragstange fest verbunden sind, während der zweite Bügelabschnitt (7) relativ zum ersten Bügelabschnitt ausschwenkbar ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der feste Abschnitt (6) und der bewegliche Abschnitt (7) des bügelförmigen Formstückes (1) durch eine feder in der Schliessrichtung vorgespannt sind, wobei zum Schliessen des Formstückes gegen die Vorspannung der bewegliche Abschnitt (7) durch ein biegsames Mittel des Bowden-Zugtyps mit einem auf einem Handgriff am oberen Ende des Tragstanges vorgesehenen Bedienungshebel verbunden ist und wobei der Handgriff auch die Bedienungsmittel für die Kolben-Zylindervorrichtung trägt.
EP94918606A 1993-06-11 1994-06-13 Vorrichtung zum verbinden von uebereinanderliegenden armierungsstaeben Expired - Lifetime EP0704013B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL9301009A NL9301009A (nl) 1993-06-11 1993-06-11 Werkwijze voor het verbinden van op elkaar liggende wapeningsstaven, alsmede inrichting voor het uitvoeren van deze werkwijze.
NL9301009 1993-06-11
PCT/NL1994/000139 WO1994029549A1 (en) 1993-06-11 1994-06-13 A device for securing superimposed reinforcing rods

Publications (2)

Publication Number Publication Date
EP0704013A1 EP0704013A1 (de) 1996-04-03
EP0704013B1 true EP0704013B1 (de) 1997-03-05

Family

ID=19862523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94918606A Expired - Lifetime EP0704013B1 (de) 1993-06-11 1994-06-13 Vorrichtung zum verbinden von uebereinanderliegenden armierungsstaeben

Country Status (7)

Country Link
EP (1) EP0704013B1 (de)
JP (1) JPH08511312A (de)
KR (1) KR960702881A (de)
AT (1) ATE149615T1 (de)
DE (1) DE69401942T2 (de)
NL (1) NL9301009A (de)
WO (1) WO1994029549A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29502671U1 (de) * 1995-02-17 1995-04-13 Höss, Andreas, 86470 Thannhausen Vorrichtung zum aneinander Festlegen von sich kreuzenden langgestreckten Gegenständen
KR100793465B1 (ko) 2006-11-22 2008-01-14 강대진 철근결속장치
KR101250296B1 (ko) * 2011-01-28 2013-04-09 정진우 철근 결속장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL48839C (de) *
US2972151A (en) * 1958-08-15 1961-02-21 Douglas C Barr Stapling device
US3851371A (en) * 1972-12-27 1974-12-03 Signode Corp Pneumatically operated tool
US4050578A (en) * 1974-10-24 1977-09-27 Eckert Robert L Mandrel and clip magazine for clip dispenser and applicator
DE3223090A1 (de) * 1982-06-21 1983-12-22 Baubedarf Horstmann GmbH, 7895 Klettgau Verfahren zum verbinden von stabfoermigen bauelementen sowie verbindungselement und werkzeug zur durchfuehrung des verfahrens
DE3524821A1 (de) * 1985-07-11 1987-01-15 Helmut Fuchs Vorrichtung zum befestigen von sich kreuzenden langgestreckten gegenstaenden aneinander, insbesondere zum verbinden der stangen von eisenstangengeflechten
US5020355A (en) * 1989-11-30 1991-06-04 Payne Roy D Method and apparatus for securing first and second members

Also Published As

Publication number Publication date
WO1994029549A1 (en) 1994-12-22
KR960702881A (ko) 1996-05-23
JPH08511312A (ja) 1996-11-26
ATE149615T1 (de) 1997-03-15
DE69401942D1 (de) 1997-04-10
DE69401942T2 (de) 1997-07-03
EP0704013A1 (de) 1996-04-03
NL9301009A (nl) 1995-01-02

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