EP0369197B1 - Clamp for connecting form work panels together - Google Patents

Clamp for connecting form work panels together Download PDF

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Publication number
EP0369197B1
EP0369197B1 EP89119603A EP89119603A EP0369197B1 EP 0369197 B1 EP0369197 B1 EP 0369197B1 EP 89119603 A EP89119603 A EP 89119603A EP 89119603 A EP89119603 A EP 89119603A EP 0369197 B1 EP0369197 B1 EP 0369197B1
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EP
European Patent Office
Prior art keywords
clamp
eccentric
arms
adjusting
gripping jaws
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EP89119603A
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German (de)
French (fr)
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EP0369197A1 (en
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Johann Badstieber
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    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame

Definitions

  • the invention relates to a clamp for connecting formwork panels arranged side by side in one plane, which have circumferential edge profiles, in particular hollow profiles, with two clamping jaws pivotable against the mutually facing longitudinal surfaces of the adjacent edge profiles and compressing them, and an actuating element for pivoting these clamping jaws, the each of the two clamping jaws at their end facing away from their clamping point has an adjusting leg at an angle to them, these adjusting legs of the two clamping jaws are directed towards one another and both clamping jaws are pivotably mounted on a support approximately in the corner region of their two adjusting legs.
  • DE-PS 2759966 shows a clamp in which the clamping legs cannot be pivoted, but can be pulled against one another and braced by a part which passes through the adjusting legs together.
  • EP-OS 0201887 is a bracket of the beginning mentioned type known, in which the two jaws have a common joint and the two adjustment legs are pivotable relative to each other by a screw passing through them.
  • the joint is arranged in a corner at the transition of a clamping jaw to its adjusting leg, so that the two clamping jaws are acted upon when adjusting on different lever arms and it is not ensured that a uniform force transmission takes place, which can be used to align the two edge profiles to be connected .
  • the support for receiving the adjustment or swivel legs and the joints and the eccentric has a stop surface facing the profiles to be braced, which is parallel to the formlining and to the webs facing away from the formwork Hollow profiles runs.
  • the cross member receiving the bearings or joints of the clamping jaws has a U-shaped cross section, the U cross bar facing the edge profiles to be connected and aligned and forming the stop and alignment surface.
  • the U-shape has the advantage that the adjustment legs can be arranged in the interior of this cross member and their swivel joints can be supported on the two U-legs, ie on both sides. In addition, this results in a good rigidity and strength of this support, which has the triple function of accommodating the pivot bearings for the clamping jaws and adjustment legs, the eccentric bearing enable in an elongated hole and form an alignment surface for the edge profiles.
  • a bracket denoted as a whole by 1 is used to connect formwork panels arranged side by side in one plane, which have circumferential edge profiles 2, in the exemplary embodiment hollow profiles, only these hollow profiles 2 being shown in FIGS. 1 and 2 without the formwork skins to be attached to them.
  • the clamp 1 each has two pivoting jaws 3 which can be pivoted against the longitudinal surfaces 2a of the adjacent edge profiles 2 and which compress them, and an actuating element to be described for this pivoting of the jaws 3.
  • the two jaws 3 each have at their end facing away from their clamping point 3a an adjusting leg 4 at an angle to them, the adjusting legs 4 of the two clamping jaws 3 being directed towards one another.
  • Both jaws 3 are pivotally mounted on a common support 5 approximately in the corner area at the transition to their legs 4.
  • the swivel joints 6 can be seen particularly well in FIGS. 1 and 2.
  • the clamping jaws 3 and their adjusting legs 4 are each arranged approximately at right angles to one another and the adjusting legs 4 are approximately in the direction of extension of the Carrier 5 oriented.
  • the support 5 for receiving the adjustment or swivel legs 4 and the joints 6 and the eccentric 7 has a stop surface 9 facing the profiles 2 to be tensioned, which runs parallel to the formlining and to the webs 2b of the hollow profiles 2 facing away from the formwork facing and is arranged in the embodiment on the outside of the crossbar 5a.
  • the clamping jaws 3 have projections which fit into corresponding depressions 10 of the hollow profiles 2, these projections and the depressions 10 in a manner known per se for inclined surfaces for tightening the stop surface 9 of the cross member 5 or its crossbar 5a against the hollow profiles Have 2.
  • the bracing of the clamp 1 thus advantageously also precisely aligns the edge webs or edge supports 2 of the formwork panels to be connected and thus of their formlining.
  • eccentric 7 is connected to an actuating lever 11 - in one piece in the exemplary embodiment - so that the entire clamp can be operated very simply by pivoting this actuating lever 11 from the one shown in FIG. 2 position shown is possible.
  • This actuating lever 11 arranged on the eccentric disk 7 is located approximately parallel to the formwork skin and approximately at right angles to the clamping jaws 3 when the clamping jaws 3 are open (FIG. 1), while the area of greatest eccentricity of the eccentric disk 7 is approximately at a right angle the actuating lever 11 extending line and is arranged approximately in the direction of orientation of the elongated hole 8.
  • the length of the elongated hole 8 for the bearing pin 7a of the eccentric 7 corresponds at least to the greatest eccentricity of the eccentric 7, so that the displacement of its bearing pin 7a, which is forced when the eccentric disk 7 is rotated, and thus the pivoting of the adjustment limbs and the clamping jaws 3 can take place undisturbed.
  • the eccentricity of the eccentric 7 and the length of the elongated hole 8 for the pivot pin 7a of the eccentric 7 are dimensioned so large that the two adjustment legs 4 of the jaws 3 in the closed position (FIG. 2) form an obtuse angle with their side facing the formlining , while in the open position such an obtuse angle is formed on the other side, so that a dead center is overcome when tensioning and self-locking of the closed position is achieved.
  • bracket 1 and its joints 6 and the eccentric bearing pin 7, which is arranged in the middle between the two joints 6 parallel to them and is displaceable is that the pivoting path of the eccentric lever in a circular segment area facing away from the formwork and the edge webs 2 and thereby a plane running perpendicular to the formwork, so that this movement of the eccentric lever 11 takes place very comfortably and without hindrance by the formwork, both when closing and when opening the clamp 1 .
  • the pivot pin 7a of the eccentric 7 does not necessarily have to be guided in an elongated hole 8, but is already guided sufficiently precisely transversely to the direction of the formlining by the attachment to the two adjusting legs 4 in their overlap region. It is only important that the eccentric 7 engages with its pivot 7a or the like axis in the area of the overlap on both adjustment legs 4 and that its outer circumference rests on the side of the crossbar 5a of the carrier 5 facing away from the hollow profiles 2. Due to the increasing distance of the outer circumference of the eccentric 7 from its pivot 7a, the rotation of the pivot 7a relative to the transverse web 5a and thus the pivoting of the adjustment leg 4 is caused by the rotation of the eccentric 7.

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  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Clamps And Clips (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Laminated Bodies (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Paper (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Dowels (AREA)
  • Sheet Holders (AREA)

Abstract

PCT No. PCT/DE89/00658 Sec. 371 Date May 13, 1991 Sec. 102(e) Date May 13, 1991 PCT Filed Oct. 18, 1989 PCT Pub. No. WO90/05225 PCT Pub. Date May 17, 1990.A clamp for connecting a pair of formwork panels which are to be disposed side-by-side in a common plane has two clamping members. Each of the clamping members includes a clamping arm for urging the panels together and an adjusting arm which is approximately perpendicular to the respective clamping arm. The clamping members are pivotally mounted on a U-shaped support and the adjusting arms are disposed internally of the support with their free ends overlapping. The clamping arms project from the support and are located on the same side of the latter as the transverse web bridging the legs of the support. The legs are provided with registering openings which are elongated transversely of the adjusting arms. A pivot extends through the overlapping ends of the adjusting arms and into the openings. The pivot is guided by the openings for movement transversely of the adjusting arms and carries an eccentric disc which is arranged to bear against the transverse web of the support. An actuating lever for the clamping members is integral with the disc and projects from the support approximately perpendicular to the clamping arms.

Description

Die Erfindung betrifft eine Klammer zum Verbinden von in einer Ebene nebeneinander angeordneten Schaltafeln, die umlaufende Randprofile, insbesondere Hohlprofile haben, mit zwei gegen die voneinander abgewandten Längsflächen der aneinander liegenden Randprofile schwenkbaren und diese zusammendrückenden Spannbacken und einem Betätigungselement für die Verschwenkung dieser Spannbacken, wobei die beiden Spannbacken jeweils an ihrem von ihrer Klemmstelle abgewandten Ende einen im Winkel zu ihnen stehenden Verstell-Schenkel aufweisen, diese Verstell-Schenkel der beiden Spannbacken aufeinander zu gerichtet sind und beide Spannbacken etwa im Eckbereich ihrer beiden Verstellschenkel an einem Träger schwenkbar gelagert sind.The invention relates to a clamp for connecting formwork panels arranged side by side in one plane, which have circumferential edge profiles, in particular hollow profiles, with two clamping jaws pivotable against the mutually facing longitudinal surfaces of the adjacent edge profiles and compressing them, and an actuating element for pivoting these clamping jaws, the each of the two clamping jaws at their end facing away from their clamping point has an adjusting leg at an angle to them, these adjusting legs of the two clamping jaws are directed towards one another and both clamping jaws are pivotably mounted on a support approximately in the corner region of their two adjusting legs.

Derartige Klammern zum Verbinden insbesondere großflächiger Schaltafeln sind in unterschiedlichen Ausführungsformen bekannt. Die DE-PS 2759966 zeigt dabei eine Klammer, bei welcher die Klemmschenkel nicht schwenkbar, sondern durch einen die Verstellschenkel gemeinsam durchsetzenden Teil gegeneinander gezogen und verspannt werden können.Such clips for connecting, in particular, large-area formwork panels are known in different embodiments. DE-PS 2759966 shows a clamp in which the clamping legs cannot be pivoted, but can be pulled against one another and braced by a part which passes through the adjusting legs together.

Aus der EP-OS 0201887 ist eine Klammer der eingangs er wähnten Art bekannt, bei welcher die beiden Spannbacken ein gemeinsames Gelenk haben und die beiden Verstellschenkel durch eine sie durchsetzende Schraube relativ zueinander verschwenkbar sind. Dabei ist das Gelenk in einer Ecke am Übergang einer Spannbacke zu ihrem Verstellschenkel angeordnet, so daß die beiden Spannbacken beim Verstellen an unterschiedlichen Hebelarmen beaufschlagt werden und nicht sichergestellt ist, daß eine gleichmäßige Kraftübertragung erfolgt, die zum Ausrichten der beiden zu verbindenden Randprofile ausgenutzt werden kann. Zwar zeigt diese Vorveröffentlichung auch noch eine Lösung mit symmetrisch angeordneten, jeweils ein eigenes Schwenkgelenk aufweisenden Klemmbacken, jedoch ist dabei die Verstellung über eine durch eine Schraube verstellbare Mutter vorgesehen, was neben der unerwünschten Verwendung eines Gewindes im Bereich der Betonierarbeiten auch zu Reibungen und Verschleiß an den Verstellschenkeln und außerdem zu einem erhöhten Herstellungsaufwand bei der Montage führt. Darüberhinaus bedeutet die Verwendung eines Gewindes zum Verstellen der Klemmschenkel einen höheren Zeitaufwand, bis ein genügend großer Verstellweg und eine genügend große Klemmkraft erzeugt sind.From EP-OS 0201887 is a bracket of the beginning mentioned type known, in which the two jaws have a common joint and the two adjustment legs are pivotable relative to each other by a screw passing through them. The joint is arranged in a corner at the transition of a clamping jaw to its adjusting leg, so that the two clamping jaws are acted upon when adjusting on different lever arms and it is not ensured that a uniform force transmission takes place, which can be used to align the two edge profiles to be connected . Although this previous publication also shows a solution with symmetrically arranged clamping jaws, each with its own swivel joint, the adjustment via a screw-adjustable nut is provided, which in addition to the undesired use of a thread in the area of the concrete work also leads to friction and wear the adjustment legs and also leads to increased manufacturing costs during assembly. In addition, the use of a thread for adjusting the clamping legs means a higher expenditure of time until a sufficiently large adjustment path and a sufficiently large clamping force are generated.

Es besteht deshalb die Aufgabe, eine Klammer der eingangs erwähnten Art zu schaffen, die einfach im Aufbau ist, gleichzeitig beim Verbinden der Schaltafeln deren Ausrichten ermöglicht und sehr schnell in Gebrauchslage gebracht, aber auch wieder entfernt werden kann. Dennoch sollen die Klemmkräfte und vor allem die Verstellbewegungen möglichst gleichmäßig an beiden Spannbacken etwa symmetrisch zu der Trennfuge zwischen den beiden Schaltafeln aufgebracht werden können.It is therefore the task of creating a clip of the type mentioned at the outset which is simple in construction, at the same time enables alignment when connecting the formwork panels and can be brought into the position of use very quickly, but can also be removed again. Nevertheless, the clamping forces and, above all, the adjustment movements should be able to be applied as evenly as possible to both clamping jaws, approximately symmetrically to the joint between the two formwork panels.

Die Lösung dieser Aufgabe besteht darin, daß sich die Enden der beiden Verstellschenkel überlappen und daß im Bereich der Überlappung der beiden Verstellschenkel an beiden gemeinsam ein Exzenter angreift, dessen Dreh- und Schwenklagerung senkrecht zur Schalhaut verschiebbar ist. Wird der gemeinsame Exzenter verdreht, werden also die Verstellschenkel verschwenkt und gleichzeitig in Richtung des Langloches, also senkrecht zur Schalhaut eine entsprechende Reaktionskraft aufgebracht, so daß der Träger gleichzeitig gegen die Außenseiten der Randprofile gedrückt wird und diese gegenseitig ausrichten kann. Dabei genügt in vorteilhafter Weise eine einzige Drehbewegung des Exzenters, um sofort die gewünschte Verspannung oder umgekehrt die gewünschte Lösebewegung durchzuführen. Dies geschieht am zweckmäßigsten dadurch, daß der Exzenter mit einem Betätigungshebel, vorzugsweise einstückig, verbunden ist. Eine verdrehbare Spindel mit entsprechender Drehlagerung und verstellbarer Mutter od. dgl. aufwendige Maschinenteile werden auf einfache Weise vermieden.The solution to this problem is that the ends of the two adjustment legs overlap and that in the area the overlap of the two adjustment legs on both jointly attacks an eccentric, the pivoting and pivoting mounting of which can be displaced perpendicular to the formlining. If the common eccentric is rotated, the adjustment legs are pivoted and, at the same time, a corresponding reaction force is applied in the direction of the elongated hole, that is to say perpendicular to the formlining, so that the carrier is simultaneously pressed against the outer sides of the edge profiles and can align them mutually. In this case, a single rotary movement of the eccentric is advantageously sufficient to immediately carry out the desired tensioning or vice versa the desired release movement. This is most conveniently done in that the eccentric is connected to an actuating lever, preferably in one piece. A rotatable spindle with a corresponding rotary bearing and an adjustable nut or the like. Elaborate machine parts are avoided in a simple manner.

Für die gewünschte Ausrichtung der beiden Schaltafeln ist es vorteilhaft, wenn der Träger zur Aufnahme der Verstell- oder Schwenk-Schenkel und der Gelenke sowie des Exzenters eine den zu verspannenden Profilen zugewandte Anschlagfläche aufweist, die parallel zur Schalhaut und zu den der Schalhaut abgewandten Stegen der Hohlprofile verläuft. Dabei ist es besonders günstig, wenn dieser die Lager oder Gelenke der Spannbacken aufnehmende Querträger einen U-förmigen Querschnitt hat, wobei der U-Quersteg den zu verbindenden und auszurichtenden Randprofilen zugewandt ist und die Anschlag- und Ausrichtfläche bildet. Die U-Form hat dabei den Vorteil, daß die Verstell-Schenkel in dem inneren dieses Querträgers angeordnet und ihre Schwenkgelenke an den beiden U-Schenkeln, also beidseits, gelagert werden können. Außerdem ergibt sich dadurch eine gute Steifigkeit und Festigkeit dieses Trägers, der die dreifache Funktion erfüllt, die Schwenklager für die Klemmbacken und Verstellschenkel aufzunehmen, die Exzenterlagerung in einem Langloch zu ermöglichen und eine Ausrichtfläche für die Randprofile zu bilden.For the desired alignment of the two formwork panels, it is advantageous if the support for receiving the adjustment or swivel legs and the joints and the eccentric has a stop surface facing the profiles to be braced, which is parallel to the formlining and to the webs facing away from the formwork Hollow profiles runs. It is particularly expedient if the cross member receiving the bearings or joints of the clamping jaws has a U-shaped cross section, the U cross bar facing the edge profiles to be connected and aligned and forming the stop and alignment surface. The U-shape has the advantage that the adjustment legs can be arranged in the interior of this cross member and their swivel joints can be supported on the two U-legs, ie on both sides. In addition, this results in a good rigidity and strength of this support, which has the triple function of accommodating the pivot bearings for the clamping jaws and adjustment legs, the eccentric bearing enable in an elongated hole and form an alignment surface for the edge profiles.

Ausgestaltungen der Erfindung sind Gegenstand weiterer Ansprüche.Embodiments of the invention are the subject of further claims.

Vor allem die Kombination einzelner oder mehrerer der vorbeschriebenen und der in den weiteren Ansprüchen enthaltenen Merkmale und Maßnahmen ergibt eine Exzenter-Klammer, bei welcher die Exzentrizität einer einzigen Exzenterscheibe dazu ausgenutzt wird, zwei jeweils getrennt schwenkbar gelagerte Klemmbacken gleichzeitig und gleichmäßig mit einer einzigen Drehbewegung des Exzenters verschwenken zu können, ohne daß aufwendige Schraubverbindungen notwendig sind. Dabei ist weiterhin vorteilhaft, daß die bei der Verschwenkung in Klemmstellung an der Exzenterlagerung auftretende Reaktionskraft zum Ausrichten der Schaltafeln ausgenutzt werden kann.Above all, the combination of one or more of the features and measures described above and those contained in the further claims results in an eccentric clamp, in which the eccentricity of a single eccentric disc is used to simultaneously and uniformly pivot two separately mounted clamping jaws with a single rotary movement of the To be able to pivot the eccentric without the need for complex screw connections. It is also advantageous that the reaction force occurring when pivoting in the clamping position on the eccentric bearing can be used to align the formwork panels.

Nachstehend ist die Erfindung mit ihren ihr als wesentlich zugehörenden Einzelheiten anhand der Zeichnung in einem Ausführungsbeispiel noch näher beschrieben. Es zeigt in etwas schematisierter Darstellung:

Fig. 1
eine Draufsicht einer erfindungsgemäßen Klammer in geöffneter Position, jedoch vorbereitet zum Verspannen zweier aneinander liegender hohler Randprofile zweier nicht näher dargestellter, in einer gemeinsamen Ebene liegender Schaltafeln,
Fig. 2
eine der Fig. 1 entsprechende Darstellung nach dem Schließen und Verspannen der Klammer und
Fig. 3
eine Rückansicht der Klammer gemäß dem Pfeil A in Fig. 2.

The invention is described in greater detail below with its details that are essential to it, using the drawing in an exemplary embodiment. It shows in a somewhat schematic representation:
Fig. 1
2 shows a plan view of a clip according to the invention in the open position, but prepared for bracing two adjacent hollow edge profiles of two formwork panels, not shown, lying in a common plane,
Fig. 2
a representation corresponding to FIG. 1 after closing and tensioning the clip and
Fig. 3
a rear view of the bracket according to arrow A in Fig. 2nd

Eine im Ganzen mit 1 bezeichnete Klammer dient zum Verbinden von in einer Ebene nebeneinander angeordneten Schaltafeln, die umlaufende Randprofile 2, im Ausführungsbeispiel Hohlprofile haben, wobei in den Figuren 1 und 2 nur diese Hohlprofile 2 ohne die daran anzubringenden Schalhäute dargestellt sind.A bracket denoted as a whole by 1 is used to connect formwork panels arranged side by side in one plane, which have circumferential edge profiles 2, in the exemplary embodiment hollow profiles, only these hollow profiles 2 being shown in FIGS. 1 and 2 without the formwork skins to be attached to them.

Die Klammer 1 hat jeweils zwei gegen die voneinander abgewandten Längsflächen 2a der aneinander liegenden Randprofile 2 schwenkbare und diese zusammendrückende Spannbacken 3 und ein noch zu beschreibendes Betätigungselement für diese Verschwenkung der Spannbacken 3. Die beiden Spannbacken 3 haben jeweils an ihrem von ihrer Klemmstelle 3a abgewandten Ende einen im Winkel zu ihnen stehenden Verstell-Schenkel 4, wobei die Verstell-Schenkel 4 der beiden Spannbacken 3 aufeinander zu gerichtet sind. Beide Spannbacken 3 sind etwa im Eckbereich am Übergang zu ihren Schenkeln 4 an einem gemeinsamen Träger 5 schwenkbar gelagert. Die Schwenkgelenke 6 erkennt man vor allem gut in den Fig. 1 und 2.The clamp 1 each has two pivoting jaws 3 which can be pivoted against the longitudinal surfaces 2a of the adjacent edge profiles 2 and which compress them, and an actuating element to be described for this pivoting of the jaws 3. The two jaws 3 each have at their end facing away from their clamping point 3a an adjusting leg 4 at an angle to them, the adjusting legs 4 of the two clamping jaws 3 being directed towards one another. Both jaws 3 are pivotally mounted on a common support 5 approximately in the corner area at the transition to their legs 4. The swivel joints 6 can be seen particularly well in FIGS. 1 and 2.

Anhand der Fig. 3 wird deutlich, daß sich die Enden der beiden Verstell-Schenkel 4 überlappen, wobei diese Schenkel 4 jeweils aus übereinander liegenden Flachelementen 4a gebildet sind, die in- und übereinander greifen können. Im Bereich der Überlappung der beiden Verstell-Schenkel 4 greift an beiden gemeinsam ein Exzenter 7 mit Hilfe seines Drehzapfens 7a an, der in einem senkrecht zur nicht näher dargestellten Schalhaut angeordneten Langloch 8 des Trägers 5 verschiebbar ist. Die eigentliche Exzenterscheibe 7 stützt sich bei ihrer Verdrehung an dem Träger 5 und dabei an einem noch zu beschreibenden Quersteg 5a ab.3 that the ends of the two adjustment legs 4 overlap, these legs 4 each being formed from superimposed flat elements 4a which can engage inside and over one another. In the area of the overlap of the two adjustment legs 4, an eccentric 7 acts on both together with the aid of its pivot 7a, which is displaceable in an elongated hole 8 of the carrier 5 arranged perpendicular to the formlining (not shown in any more detail). The actual eccentric disc 7 is supported when it rotates on the carrier 5 and thereby on a crosspiece 5a to be described.

Die Spannbacken 3 und ihre Verstell-Schenkel 4 sind jeweils etwa rechtwinklig zueinander angeordnet und die Verstell-Schenkel 4 sind dabei etwa in der Erstreckungsrichtung des Trägers 5 orientiert. Der zur Aufnahme der Verstell- oder Schwenk-Schenkel 4 und der Gelenke 6 sowie des Exzenters 7 dienende Träger 5 weist eine den zu verspannenden Profilen 2 zugewandte Anschlagfläche 9 auf, die parallel zur Schalhaut und zu den der Schalhaut abgewandten Stegen 2b der Hohlprofile 2 verläuft und im Ausführungsbeispiel an der Außenseite des Quersteges 5a angeordnet ist.The clamping jaws 3 and their adjusting legs 4 are each arranged approximately at right angles to one another and the adjusting legs 4 are approximately in the direction of extension of the Carrier 5 oriented. The support 5 for receiving the adjustment or swivel legs 4 and the joints 6 and the eccentric 7 has a stop surface 9 facing the profiles 2 to be tensioned, which runs parallel to the formlining and to the webs 2b of the hollow profiles 2 facing away from the formwork facing and is arranged in the embodiment on the outside of the crossbar 5a.

Zur Bildung der Klemmstellen 3a haben die Spannbacken 3 Vorsprünge, die in entsprechende Einsenkungen 10 der Hohlprofile 2 passen, wobei diese Vorsprünge und die Einsenkungen 10 in an sich bekannter Weise Schrägflächen zum Anziehen der Anschlagfläche 9 des Querträgers 5 bzw. seines Quersteges 5a gegen die Hohlprofile 2 haben. Das Verspannen der Klammer 1 bewirkt also in vorteilhafter Weise auch ein genaues Ausrichten der Randstege oder Randträger 2 der zu verbindenden Schaltafeln und damit von deren Schalhäuten.To form the clamping points 3a, the clamping jaws 3 have projections which fit into corresponding depressions 10 of the hollow profiles 2, these projections and the depressions 10 in a manner known per se for inclined surfaces for tightening the stop surface 9 of the cross member 5 or its crossbar 5a against the hollow profiles Have 2. The bracing of the clamp 1 thus advantageously also precisely aligns the edge webs or edge supports 2 of the formwork panels to be connected and thus of their formlining.

Der die Schwenklager 6 der Spannbacken 3 aufnehmende Querträger 5 hat gemäß Fig. 3 einen U-förmigen Querschnitt, wobei der U-Quersteg 5a den zu verbindenden Randprofilen 2 zugewandt ist und die Anschlag- und Ausrichtfläche 5 bildet bzw. aufweist.3 has a U-shaped cross-section, the U-crosspiece 5a facing the edge profiles 2 to be connected and forming or having the stop and alignment surface 5.

In allen 3 Figuren erkennt man, daß der Exzenter 7 mit einem Betätigungshebel 11 ― im Ausführungsbeispiel einstückig ― verbunden ist, so daß die Bedienung der gesamten Klammer sehr einfach durch die Verschwenkung dieses Betätigungshebels 11 aus der in Fig. 1 erkennbaren in die in Fig. 2 dargestellte Lage möglich ist.In all 3 figures it can be seen that the eccentric 7 is connected to an actuating lever 11 - in one piece in the exemplary embodiment - so that the entire clamp can be operated very simply by pivoting this actuating lever 11 from the one shown in FIG. 2 position shown is possible.

Dieser an der Exzenterscheibe 7 angeordnete Betätigungshebel 11 befindet sich bei geöffneten Spannbacken 3 (Fig. 1) etwa parallel zu der Schalhaut und etwa rechtwinklig zu den Spannbacken 3, während der Bereich der größten Exzentrizität der Exzenterscheibe 7 auf einer etwa rechtwinklig zu dem Betätigungshebel 11 verlaufenden Linie und dabei ungefähr auch in Orientierungsrichtung des Langloches 8 angeordnet ist.This actuating lever 11 arranged on the eccentric disk 7 is located approximately parallel to the formwork skin and approximately at right angles to the clamping jaws 3 when the clamping jaws 3 are open (FIG. 1), while the area of greatest eccentricity of the eccentric disk 7 is approximately at a right angle the actuating lever 11 extending line and is arranged approximately in the direction of orientation of the elongated hole 8.

Die Länge des Langloches 8 für den Lagerstift 7a des Exzenters 7 entspricht dabei wenigstens der größten Exzentrizität des Exzenters 7, damit die bei der Verdrehung der Exzenterscheibe 7 erzwungene Verschiebung ihres Lagerstiftes 7a und damit die Verschwenkung der Verstellschenkel und der Klemmbacken 3 ungestört erfolgen kann. Dabei sind die Exzentrizität der Exzenterscheibe 7 und die Länge des Langloches 8 für den Schwenkstift 7a des Exzenters 7 so groß bemessen, daß die beiden Verstellschenkel 4 der Spannbacken 3 in Schließstellung (Fig. 2) einen stumpfen Winkel mit ihrer der Schalhaut zugewandten Seite miteinander bilden, während in Öffnungsstellung ein solcher stumpfer Winkel gerade nach der anderen Seite gebildet ist, so daß also beim Verspannen ein Totpunkt überwunden und eine Selbstsicherung der Schließstellung erzielt wird.The length of the elongated hole 8 for the bearing pin 7a of the eccentric 7 corresponds at least to the greatest eccentricity of the eccentric 7, so that the displacement of its bearing pin 7a, which is forced when the eccentric disk 7 is rotated, and thus the pivoting of the adjustment limbs and the clamping jaws 3 can take place undisturbed. The eccentricity of the eccentric 7 and the length of the elongated hole 8 for the pivot pin 7a of the eccentric 7 are dimensioned so large that the two adjustment legs 4 of the jaws 3 in the closed position (FIG. 2) form an obtuse angle with their side facing the formlining , while in the open position such an obtuse angle is formed on the other side, so that a dead center is overcome when tensioning and self-locking of the closed position is achieved.

Bei sehr genauem symmetrischem Kraftangriff, der die beiden Randprofile 2 nicht nur zusammendrückt, sondern auch ausrichtet, wird dennoch die gesamte Bedienung sowohl beim Fixieren als auch beim Lösen der Klammer sehr einfach und vor allem schnell durchgeführt.With a very precise symmetrical application of force, which not only compresses the two edge profiles 2, but also aligns them, the entire operation is nevertheless carried out very easily and, above all, quickly, both when fixing and when releasing the clamp.

Ein weiterer Vorteil der erfindungsgemäßen Ausbildung und Anordnung der Klammer 1 sowie ihrer Gelenke 6 und des Exzenter-Lagerstiftes 7, der in der Mitte zwischen den beiden Gelenken 6 parallel zu diesen angeordnet ist und verschiebbar ist, besteht noch darin, daß der Schwenkweg des Exzenterhebels in einem von der Schalung und den Randstegen 2 abgewandten Kreissegment-Bereich und dabei einer senkrecht zur Schalung verlaufenden Ebene liegt, so daß diese Bewegung des Exzenterhebels 11 sehr bequem und ohne Behinderung durch die Schalung erfolgt und zwar sowohl beim Schließen als auch beim Öffnen der Klammer 1.Another advantage of the inventive design and arrangement of the bracket 1 and its joints 6 and the eccentric bearing pin 7, which is arranged in the middle between the two joints 6 parallel to them and is displaceable, is that the pivoting path of the eccentric lever in a circular segment area facing away from the formwork and the edge webs 2 and thereby a plane running perpendicular to the formwork, so that this movement of the eccentric lever 11 takes place very comfortably and without hindrance by the formwork, both when closing and when opening the clamp 1 .

Es sei noch erwähnt, daß der Schwenkstift 7a des Exzenters 7 nicht unbedingt in einem Langloch 8 geführt sein muß, sondern bereits durch die Befestigung an den beiden Verstellschenkeln 4 in deren Überlappungsbereich genügend genau quer zur Richtung der Schalhaut geführt wird. Wichtig ist nur, daß der Exzenter 7 mit seinem Drehzapfen 7a oder dergleichen Achse im Bereich der Überlappung an beiden Verstellschenkeln 4 angreift und sein Außenumfang an der den Hohlprofilen 2 abgewandten Seite des Quersteges 5a des Trägers 5 anliegt. Durch den zunehmenden Abstand des Außenumfanges des Exzenters 7 von seinem Drehzapfen 7a wird so durch die Verdrehung des Exzenters 7 die Verschiebung des Drehzapfens 7a relativ zu dem Quersteg 5a und damit die Verschwenkung der Verstell-Schenkel 4 bewirkt.It should also be mentioned that the pivot pin 7a of the eccentric 7 does not necessarily have to be guided in an elongated hole 8, but is already guided sufficiently precisely transversely to the direction of the formlining by the attachment to the two adjusting legs 4 in their overlap region. It is only important that the eccentric 7 engages with its pivot 7a or the like axis in the area of the overlap on both adjustment legs 4 and that its outer circumference rests on the side of the crossbar 5a of the carrier 5 facing away from the hollow profiles 2. Due to the increasing distance of the outer circumference of the eccentric 7 from its pivot 7a, the rotation of the pivot 7a relative to the transverse web 5a and thus the pivoting of the adjustment leg 4 is caused by the rotation of the eccentric 7.

Claims (11)

1. A clamp (1) for connecting formwork panels which are arranged side by side in a plane and have edge profiles (2), particularly hollow profiles or the like, running round them, the clamp (1) including two gripping jaws (3) which are adapted to be swivelled against and urge together the longitudinal faces (2a) averted from one another of the abutting edge profiles (2), and further including an actuating member (7, 11) for swivelling said gripping jaws (3), at the end averted from the clamping point (3a) of the gripping jaws (3) the latter in each case having an adjusting arm (4) oriented at an angle thereto, said adjusting arms (4) of the two gripping jaws (3) being directed towards one another and both gripping jaws (3) being swivel-mounted on a bracket (5) approximately in the corner region of the two arms (4) of said jaws, characterized in that the ends of the two adjusting arms (4) overlap and that in the region where the two adjusting arms (4) overlap both are jointly engaged by an eccentric (7), the pivot and swivel bearing (7a) of the latter being slidable perpendicular to the forming surface.
2. The clamp as claimed in claim 1, characterized in that the adjusting arms are in each case formed by superposed flat elements (4a) in each case engaging over and under one another in the overlapping area.
3. The device as claimed in claim 1 or claim 2, characterized in that the gripping jaws (3) and adjusting arms (4) thereof are approximately at right angles to one another and the adjusting arms (4) are oriented approximately in the direction in which the bracket (5) extends.
4. The clamp as claimed in any one of claims 1 to 3, characterized in that the bracket (5) serving to accomodate the adjusting or swivel arms (4) and the joints (6) as well as the eccentric (7), has a stop face (9) turned towards the profiles (2) to be braced, said stop face running parallel to the forming surface and to the webs (2b) of the hollow profiles (2) averted from the forming surface and in particular being disposed on the outside of a cross bar (5a).
5. The clamp as claimed in any one of claims 1 to 4, characterized in that the gripping jaws (3) have projections fitting into corresponding depressions (10) of the hollow profiles (2), and that said projections and the depressions (10) preferably have angular surfaces for drawing the stop face (9) of the cross member (5) of the clamp against the hollow profiles (2).
6. The clamp as claimed in any one of claims 1 to 5, characterized in that the cross member (5) accommodating the swivel bearings (6) of the gripping jaws (3) has a U-shaped cross section, the cross bar (5a) of the U facing the edge profiles (2) to be connected and forming the stopping and aligning face (9).
7. The clamp as claimed in any one of claims 1 to 6, characterized in that the eccentric (7) is connected, preferably integrally connected, to an actuating lever (11).
8. The clamp as claimed in any one of claims 1 to 7, characterized in that when the gripping jaws (3) are open the actuating lever (11) disposed on the eccentric disc (7) is arranged approximately parallel to the forming surface and approximately at right angles to the gripping jaws (3) and that the area of the greatest eccentricity of the eccentric disc (7) is arranged on a line running approximately at right angles to the actuating lever (11).
9. The clamp as claimed in any one of claims 1 to 8, characterized in that the pivot and swivel bearing (7a) is guided in an oblong hole (8) arranged in the bracket (5) and the length of the oblong hole (8) for the bearing pin (7a) or the like of the eccentric (7) preferable corresponds at least to the greatest eccentricity of the eccentric (7).
10. The clamp as claimed in any one of claims 1 to 9, characterized in that the eccentricity of the eccentric disc (7) any the length of the oblong hole (8) for the swivel pin (7a) of the eccentric (7) are of such a size that in the closed position the two adjusting arms (4) of the clamping jaws (3) together form an of obtuse angle on that side of said arms which faces the forming surface.
11. The clamp as claimed in any one of the preceding claims, characterized in that the eccentric (7) with its swivel pin (7a) or suchlike shaft engages both adjusting arms (4) in the region of overlap and the outer periphery of said eccentric rests against or is operative at that side of the cross bar (5a) of the bracket (5) which is averted from the hollow profiles (2).
EP89119603A 1988-11-12 1989-10-23 Clamp for connecting form work panels together Expired - Lifetime EP0369197B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89119603T ATE69634T1 (en) 1988-11-12 1989-10-23 CLIP FOR CONNECTING PANELS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8814208U 1988-11-12
DE8814208U DE8814208U1 (en) 1988-11-12 1988-11-12 Clamp for connecting formwork panels

Publications (2)

Publication Number Publication Date
EP0369197A1 EP0369197A1 (en) 1990-05-23
EP0369197B1 true EP0369197B1 (en) 1991-11-21

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ID=6829835

Family Applications (1)

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EP89119603A Expired - Lifetime EP0369197B1 (en) 1988-11-12 1989-10-23 Clamp for connecting form work panels together

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US (1) US5146816A (en)
EP (1) EP0369197B1 (en)
JP (1) JPH0656055B2 (en)
KR (1) KR950008100B1 (en)
CN (1) CN1019221B (en)
AT (1) ATE69634T1 (en)
AU (1) AU631148B2 (en)
CA (1) CA2002724A1 (en)
DE (2) DE8814208U1 (en)
DK (1) DK165016C (en)
EG (1) EG18762A (en)
ES (1) ES2019058T3 (en)
FI (1) FI911018A0 (en)
GR (1) GR3003198T3 (en)
HK (1) HK81692A (en)
HU (1) HU208351B (en)
IL (1) IL92263A (en)
LT (1) LT3577B (en)
LV (1) LV10753B (en)
MA (1) MA21676A1 (en)
MY (1) MY104473A (en)
NO (1) NO178240C (en)
PT (2) PT92273A (en)
RU (1) RU2042774C1 (en)
SG (1) SG57492G (en)
WO (1) WO1990005225A1 (en)

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Also Published As

Publication number Publication date
DK165016B (en) 1992-09-28
FI911018A0 (en) 1991-02-28
CN1019221B (en) 1992-11-25
US5146816A (en) 1992-09-15
DE8814208U1 (en) 1989-01-05
EG18762A (en) 1994-01-30
SG57492G (en) 1992-09-04
ATE69634T1 (en) 1991-12-15
NO911828L (en) 1991-05-10
HK81692A (en) 1992-10-30
DK87791D0 (en) 1991-05-10
KR950008100B1 (en) 1995-07-25
AU631148B2 (en) 1992-11-19
LV10753A (en) 1995-08-20
NO178240C (en) 1996-02-14
HUT60356A (en) 1992-08-28
JPH03503557A (en) 1991-08-08
ES2019058A4 (en) 1991-06-01
WO1990005225A1 (en) 1990-05-17
NO178240B (en) 1995-11-06
RU2042774C1 (en) 1995-08-27
CA2002724A1 (en) 1990-05-12
JPH0656055B2 (en) 1994-07-27
DE58900477D1 (en) 1992-01-02
LV10753B (en) 1995-12-20
DK87791A (en) 1991-06-26
PT92273A (en) 1990-05-31
HU208351B (en) 1993-09-28
EP0369197A1 (en) 1990-05-23
NO911828D0 (en) 1991-05-10
MA21676A1 (en) 1990-07-01
KR900702161A (en) 1990-12-06
LT3577B (en) 1995-12-27
IL92263A (en) 1991-06-10
DK165016C (en) 1993-02-08
IL92263A0 (en) 1990-07-26
PT9189T (en) 1996-01-31
ES2019058T3 (en) 1997-08-01
LTIP1439A (en) 1995-05-25
AU4416989A (en) 1990-05-28
CN1042751A (en) 1990-06-06
HU896109D0 (en) 1992-04-28
GR3003198T3 (en) 1993-02-17
MY104473A (en) 1994-04-30

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