EP1702120B1 - Formwork system - Google Patents

Formwork system Download PDF

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Publication number
EP1702120B1
EP1702120B1 EP04803647A EP04803647A EP1702120B1 EP 1702120 B1 EP1702120 B1 EP 1702120B1 EP 04803647 A EP04803647 A EP 04803647A EP 04803647 A EP04803647 A EP 04803647A EP 1702120 B1 EP1702120 B1 EP 1702120B1
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EP
European Patent Office
Prior art keywords
formwork
elements
accordance
bolt
locking
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EP04803647A
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German (de)
French (fr)
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EP1702120A1 (en
Inventor
Artur Schwörer
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Peri GmbH
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Peri GmbH
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Publication of EP1702120A1 publication Critical patent/EP1702120A1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/075Tying means, the tensional elements of which are fastened or tensioned by other means
    • E04G17/0751One-piece elements
    • E04G17/0752One-piece elements fully recoverable

Definitions

  • the invention relates to a formwork system with shuttering elements having opposite formwork inner surfaces, which are mutually connected by means of formwork anchors spaced apart, wherein a formwork anchor consists of a bolt element and two locking elements, which in the two opposite end portions of the bolt element coupled thereto and for transmitting tensile forces of the formwork elements are formed on the bolt element.
  • Such formwork systems are known from the prior art in various embodiments. They are used on construction sites of various sizes to define limited volumes in the construction of reinforced concrete frameworks by formwork surfaces or by an inner and an outer formwork, which are then filled with liquid concrete. After solidification of the concrete, the formwork elements are then removed again, whereupon they are usually reusable for the construction of other formwork. For example, walls, pillars, foundations, shafts and the like of concrete and reinforced concrete can be produced with said formwork systems.
  • a formwork anchor is formed by a bolt element and two locking elements, the latter, as already mentioned, being suitable for transmitting tensile forces from the formwork elements to the bolt element.
  • Schalunsssystemc are known in which prevents shuttering elements of the inner and outer formwork by appropriate force, especially when filling concrete to move toward each other, so that a final wall to be produced after completion would not have the desired thickness in all areas.
  • AP 100 A GB 2 057 042 A . US 913,538 . US 3,167,842 . US 2,584,822 .
  • the 24 08 558 and DE 103 36 414 A1 Formwork anchors described that can absorb both tensile forces and compressive forces and thus hold the formwork elements at a certain distance from each other.
  • shuttering elements can be kept at a fixed distance by separate spacers, as in FIG DE 197 54 366 A1 is described.
  • AP 100A already shows all the features of the preamble of claim 1.
  • An object of the invention is to develop a formwork system of the type mentioned in such a way that it reliably prevents the inner and outer formwork, in particular during the filling of concrete to move towards each other.
  • a formwork system of the type mentioned above comprising a consisting of a bolt element and two locking elements can be coupled with the shuttering elements formwork anchors is formed so that the one locking element insoluble the bolt element is connected and the other locking element is releasably connectable to the bolt element, wherein the bolt element is rotatably mounted in the fixedly connected to it locking element about its longitudinal axis.
  • the locking elements are not only for the transmission of tensile forces, but also for the transmission of compressive forces from the formwork elements on the bolt element suitable.
  • the distance defined by the shuttering anchors according to the invention between the mutually facing shuttering inner surfaces of inner shuttering and outer shuttering is fixed in both directions, so that this distance can neither increase nor decrease during the filling of concrete or the action of any other forces. This ensures that the concrete walls to be created in all areas have the desired thickness and predetermined by the formwork anchors.
  • the fitter per formwork anchors only two parts, namely with the one locking element inextricably connected Bölzenelement and the other Arretismeseleinent handle must.
  • the locking element connected inseparably connected to the bolt element can be grasped and the bolt element inserted through the anchor holes of the inner and outer formwork. Subsequently, the other Arretieruneselement can then be attached to the said locking element opposite end of the bolt member.
  • the opposing shuttering inner surfaces of the inner formwork and the outer formwork are each formed by a composite of individual formwork elements
  • each composite of formwork elements in each case in particular circular anchor holes for receiving the bottom elements of the formwork anchors.
  • These anchor holes can be provided, for example, in the region of the joints of adjacent, mutually adjacent formwork elements, so that each formwork element has in its edge regions, for example, semicircular Ankerschlöcher that form complete anchor holes together with semicircular anchor holes of an adjacent formwork element.
  • the locking elements may each have a cooperating with the respective outer side of the formwork elements traction transfer surface.
  • the locking elements are each positioned on the outer sides of the formwork elements that they rest flatly with their traction transfer surfaces on said outer sides.
  • surrounding the anchor holes areas of the outer sides of the shuttering elements for cooperation with the Traction transfer surfaces of the locking elements to be formed, which is made possible in particular by a sufficient stability of said areas.
  • undercuts are provided on the outer sides of the formwork elements, which are engageable in operative connection with provided on the coupling elements of the locking elements pressure force transmission surfaces.
  • These undercuts can be provided, for example, inexpensively in the context of an extrusion, rolling or rolling process on profile elements, which are used as edge regions of the formwork elements.
  • the undercuts extend over at least substantially the entire height of the formwork elements, so that said operative connection between the undercuts and the coupling elements is basically everywhere possible in the entire edge region of the formwork elements where anchor holes are provided.
  • the coupling elements provided on the locking elements can be hook-shaped in cross section, so that they can be hooked to the undercuts of the formwork elements. In this way, a particularly simple operative connection between coupling elements and formwork elements can be produced in a short time.
  • the locking element or the bolt element could also be screwed to the formwork element. In this case, the corresponding thread would then transmit both tensile forces and compressive forces from the formwork elements on the bolt element.
  • the existing on the part of the locking elements or the bolt element thread would in this case, inter alia, the coupling element according to the invention for transmission form of compressive forces of the formwork elements on the bolt element.
  • the locking elements preferably have a substantially cuboid housing, to which the coupling element is integrally formed.
  • This block-shaped housing including the coupling element can be manufactured by meter, for example by means of an extrusion, rolling or rolling process, from which the individual housing can then be cut to the desired length. In the intersection areas, the housings made in the aforementioned manner are then open on two opposite sides.
  • one locking element is inseparably connected to the bolt element, while the other locking element is detachably connectable to the bolt element.
  • the bolt element on the side facing away from the traction transfer surface can protrude from the locking element or housing firmly connected to it.
  • the bolt element is then preferably an engagement surface for a tool intended.
  • this protruding region is designed as a hexagon or hexagon, so that it can be rotated by means of a tool in a simple manner about the longitudinal axis of the bolt element.
  • the bolt element can be provided with a thread for screwing into the locking element which can be released from the bolt element at its end region which is fixedly connected to it with a locking element.
  • the bolt element can be grasped at its firmly connected with him locking element and inserted through the two anchor holes of the inner and outer formwork, whereupon by turning the tool-engaging surface about the longitudinal axis of the bolt member by hand or by means of a tool screwing said Thread in the releasable from the bolt element locking element can be effected.
  • the bolt element is conical, wherein the cross section of the bolt element decreases in particular with increasing distance from the locking element firmly connected to it. This ensures that the bolt element after solidification of the concrete can be easily pulled out of the anchor holes or the solidified concrete.
  • the locking element detachable from the bolt element is provided with a threaded sleeve into which the bolt element can be screwed in, the outside diameter of the threaded sleeve being approximately the same as the inside diameter of the anchor holes formed in the formwork elements.
  • the length of the protruding from the locking element portion of the threaded sleeve is preferably dimensioned so that it extends at least over the entire thickness of a cooperating with the locking element shuttering element. In this way, the threaded sleeve with the screwed into it Bolt element close the anchor hole of a formwork element in the region of the shuttering inner surface in such a way that no liquid concrete enter the anchor holes and thus can escape from the formwork.
  • This sealing function of the threaded sleeve is particularly relevant because the thread, as already mentioned, is provided at the thinner end portion of the conical bolt element, so that there would exist a gap between the border of the anchor hole and the bolt element without a threaded sleeve. However, this gap is filled by the threaded sleeve described.
  • Said threaded sleeve can be permanently connected to its associated locking element, which keeps the number of parts to be handled low.
  • the housings of the locking elements can each be held a locking block, which is detachably connected to the bolt element or firmly connected.
  • the bolt element In a fixed connection between the locking block and the bolt element, the bolt element is preferably rotatably mounted in the locking block, but can not be pulled out of the locking block.
  • the bolt element In a releasable connection between the bolt element and locking block, the bolt element can be screwed either directly into the locking block or in a firmly connected with him threaded sleeve of the type already explained.
  • the housing of the locking elements can be provided on mutually opposite sides with mutually aligned bolt holes through which the bolt element can be inserted.
  • these bolt holes are necessary in order to couple the bolt element with the mentioned locking blocks, which are located inside the housings to be able to.
  • said bolt holes are required in order to allow a bolt element with its tool engagement surface to protrude from the side of the housing facing away from the formwork element.
  • the bolt holes each have the shape of a curved oblong hole, in which the bolt element and / or the threaded sleeve are displaceable.
  • the housing can ultimately be moved relative to the bolt element or to the threaded sleeve, after the bolt element and threaded sleeve have been introduced into the anchor holes of the formwork elements, in order for example to cause hooking of the coupling elements provided on the housing with undercuts of the formwork elements.
  • Fig. 1 shows an anchor bolt 1, which is coupled in its two opposite end portions, each with a locking element 2, 3.
  • Both locking elements 2, 3 each consist of a housing 4, 5, wherein in each case 4, 5 each have a locking block 6, 7 is arranged.
  • the housings 4, 5 are manufactured by the meter by means of an extrusion, rolling or rolling process, from which they are cut off at the desired length along the cut surfaces 8. This has the consequence that the housing 4, 5 are open at the end in the region of the cut surfaces 8, so that the locking blocks 6, 7 can be inserted into the housing 4, 5 through these open sides.
  • a coupling element 9, 10 is formed for transmitting compressive forces of formwork elements on the bolt element 1, said coupling elements 9, 10 over the entire length of the housing 4, 5 have a constant cross-section, so that the coupling elements 9, 10 can be produced simultaneously with the housings 4, 5 by an extrusion, rolling or rolling process.
  • the coupling elements 9, 10 are hook-shaped in cross section, so that they can be hooked with corresponding undercuts of the formwork elements (see Fig. 2 ).
  • the orientation of the two coupling elements 9, 10 is chosen such that they extend hook-shaped in opposite directions.
  • the bolt element 1 is made of a particular metallic solid material and has a conical, tapering with increasing distance from the locking element 2 shape. Furthermore, the bolt member 1 in the locking block 6 of the locking element 2 is insoluble, but rotatably supported, wherein it protrudes from the housing 4 in a direction facing away from the locking element 3. This projecting portion of the bolt member 1 is formed as a hexagon 11, via which the bolt member 1 by hand or by means of a tool relative to the locking elements 2, 3 can be rotated about its longitudinal axis.
  • the recorded in the housing 5 locking block 7 is fixedly coupled to a threaded sleeve 12 which protrudes in the direction of the locking element 2 from the housing 5.
  • the threaded sleeve 12 is provided on the inside with a thread into which the bolt element 1 can be screwed with its end facing away from the locking element 2.
  • Each of the two housings 4, 5 has in opposite housing sides in each case a bolt hole 13, 14, which in each case has the shape of a curved oblong hole.
  • the two bolt holes 13, 14 of each housing 4, 5 are aligned with each other. In Fig. 1 Due to the selected perspective, only one bolt hole 13, 14 can be seen per housing 4, 5.
  • the bolt element 1 extends through both bolt holes 13, whereas in the locking element 3, the threaded sleeve 12 by the locking element 2 facing, in Fig. 1 invisible bolt hole 14 extends.
  • the other, in Fig. 1 visible bolt hole 14 allows the passage of the bolt element end 15, if this is screwed far enough into the threaded sleeve 12.
  • the bolt holes 13, 14 are curved in the form of elongated holes such that their respective upper regions are closer to the sides of the housings 4, 5 provided with the coupling elements 9, 10 than their lower regions.
  • FIG. 2 shows a section through a formwork anchor according to Fig. 1 , this formwork anchor according to Fig. 2 is now connected to formwork elements of an inner and an outer formwork.
  • the formwork anchor are in Fig. 2 the same reference numerals are used as in FIG Fig. 1 ,
  • Fig. 2 shows accordingly two mutually coupled formwork elements 16 of an inner formwork and two mutually coupled formwork elements 17 an outer formwork.
  • an anchor hole 18 is provided in the inner formwork and in the outer formwork, which extends completely through the inner and outer formwork and extends perpendicular to the formwork inner surfaces 19, 20 of the inner and outer formwork.
  • Inner and outer formwork each have their outer side facing away from the formwork inner surface 19, 20 a to the shuttering inner surface 19, 20 parallel extending contact surface, on which tensile force transmission surfaces 21, 22 of the housing 4, 5 abut.
  • the traction transfer surfaces 21, 22 are located on the mutually facing sides of the housing 4, 5.
  • the formwork elements 16, 17 are provided on their sides facing away from the formwork inner surfaces 19, 20, each with an undercut 23, 24 which are respectively engaged behind by the hook-shaped coupling elements 9, 10, so that ultimately an entanglement between the coupling elements 9 and 10 respectively and the undercuts 23 and 24 results.
  • Those areas of the coupling elements 9, 10 which are in contact with the undercuts 23, 24 form the already mentioned pressure force transmission surfaces of the coupling elements 9, 10.
  • the bolt element 1 is fixed by means of a snap ring 26 in the locking block 6 such that it is rotatable about its longitudinal axis, but can not be released from the locking block 6.
  • the bolt element 1 at its end facing away from the hexagon 11 has an external thread 25, which is screwed into a corresponding internal thread of the threaded sleeve 12.
  • the threaded portions of said external thread 25 and the internal thread of the threaded sleeve 12 extend exclusively in the region of the housing 5; In the illustrated embodiment, they therefore do not extend into that region which comes to rest within the formwork elements 17.
  • the length of the threaded sleeve 12 is dimensioned such that it extends completely through the formwork elements 17, so that the formed in the formwork elements 17 anchor hole 18 through the threaded sleeve 12 and the bolt member 1 is sealed and sealed in a sufficient manner.
  • Fig. 2 shown arrangement that can be transmitted by the interaction of the traction transfer surfaces 21, 22 with the outer sides of the formwork elements 16, 17 tensile forces of the shuttering elements 16, 17 on the housing 4, 5 on the bolt element 1.
  • compressive forces can be transmitted from the formwork elements 16, 17 via the housings 4, 5 to the bolt element 1, since the coupling elements 9, 10 are hooked to the undercuts 23, 24 in the region of their pressure force transmission surfaces.
  • Fig. 3a - c and Fig. 4a - c describes how a formwork anchor according to the Fig. 1 and 2 with a formwork according to Fig. 2 can be connected.
  • Fig. 3a - 4c each show a section through shuttering elements 16, 17 accordingly Fig. 2 and by the corresponding elements of the formwork anchor including a respective plan view of the housing 4, 5 of the locking elements 2, 3 in the direction of arrows A.
  • Fig. 3a - c are respectively plan views of the housing 5, in the Fig. 4a - c each plan views of the housing 4 shown.
  • the locking element 3 ( Fig. 1 ) is gripped on its housing 5 and inserted with the threaded sleeve 12 first into the anchor hole 18 which is formed in the formwork elements 17. During this insertion, it is irrelevant at which position of the bolt hole 14, the sliding in this bolt hole 14 threaded sleeve 12 is located.
  • the threaded sleeve 12 may be located in the upper region of the bolt hole 14, as in Fig. 3a is shown.
  • the housing 5 must be raised relative to the threaded sleeve 12 such that the threaded sleeve 12 moves within the bolt hole 14 down.
  • the curvature of the bolt hole 14 is achieved by this movement that the coupling element 10 in the direction of arrow B in accordance Fig. 3b moved so that it does not collide with the further insertion of the threaded sleeve 12 in the anchor hole 18 with the undercut 24. Accordingly, in the mentioned position of the threaded sleeve 12 in the bolt hole 14, the coupling element 10 can be moved over the undercut 24, as can be seen from Fig.
  • Fig. 4a Now that is fixed to the locking element 2 ( Fig. 1 ) connected bolt element 1 through the anchor hole 18 of the formwork elements 16 inserted, whereby it is analogous to Fig. 3a again does not matter at what point of the formed in the housing 4 bolt hole 13, the bolt element 1 is located.
  • the bolt member 1 in the region of the upper end of the bolt hole thirteenth
  • the bolt element 1 is now so far inserted into the anchor hole 18 and screwed into the threaded sleeve 12 until the coupling element 9 would collide with the undercut 23 of the formwork elements 16. Subsequently, then according to Fig. 4b a lifting of the housing 4 such that the bolt member 1 is moved in the lower portion of the curved bolt hole 13, whereby analogous to Fig. 3b a movement of the housing 4 in the direction of the arrow D is achieved. In this position, the coupling element 9 can be moved by continued screwing into the threaded sleeve 12 on the undercut 23 away until the bolt member 1 is completely screwed through the hex 11 into the threaded sleeve 12.

Abstract

The invention relates to a formwork system which comprises formwork elements having opposite formwork interior surfaces, which can be interlinked at a distance to one another by means of formwork ties. Said formwork ties are constituted of a bolt element and two locking elements that are configured so as to be coupled to the bolt elements in the two distal areas thereof facing away from each other and that are adapted to transmit tensile forces from the formwork elements onto the bolt element. The formwork system is characterized in that the locking elements comprise coupling elements for transmitting pressure forces from the formwork elements onto the bolt element.

Description

Die Erfindung betrifft ein Schalungssystem mit einander gegenüberliegende Schalungsinnenflächen aufweisenden Schalungselementen, welche mittels Schalungsankern beabstandet zueinander miteinander verbindbar sind, wobei ein Schalungsanker aus einem Bolzenelement und zwei Arretierungselementen besteht, die in den beiden einander abgewandten Endbereichen des Bolzenelements mit diesem koppelbar und zur Übertragung von Zugkräften von den Schalungselementen auf das Bolzenelement ausgebildet sind.The invention relates to a formwork system with shuttering elements having opposite formwork inner surfaces, which are mutually connected by means of formwork anchors spaced apart, wherein a formwork anchor consists of a bolt element and two locking elements, which in the two opposite end portions of the bolt element coupled thereto and for transmitting tensile forces of the formwork elements are formed on the bolt element.

Derartige Schalungssysteme sind aus dem Stand der Technik in verschiedenen Ausführungsformen bekannt. Sie werden auf Baustellen unterschiedlichster Größen eingesetzt, um bei der Erstellung von Stahlbeton-Rohbauten durch Schalungsflächen bzw. durch eine Innen- und eine Außenschalung begrenzte Volumina zu definieren, die anschließend mit flüssigem Beton ausgefüllt werden. Nach dem Erstarren des Betons werden die Schalungselemente dann wieder entfernt, woraufhin sie in der Regel für den Aufbau weiterer Schalungen wieder verwendbar sind. Mit den genannten Schalungssystemen lassen sich beispielsweise Wände, Säulen, Fundamente, Schächte und dergleichen aus Beton und Stahlbeton erzeugen.Such formwork systems are known from the prior art in various embodiments. They are used on construction sites of various sizes to define limited volumes in the construction of reinforced concrete frameworks by formwork surfaces or by an inner and an outer formwork, which are then filled with liquid concrete. After solidification of the concrete, the formwork elements are then removed again, whereupon they are usually reusable for the construction of other formwork. For example, walls, pillars, foundations, shafts and the like of concrete and reinforced concrete can be produced with said formwork systems.

Bei den genannten Schalungssystemen ist es üblich, die die Innenschalung bildenden Schalungselemente mit den die Außenschalung bildenden Schalungselementen über Schalungsanker zu koppeln, die durch in den Schalungselementen vorhandene Ankerlöcher geführt und derart mit den Schalungselementen verbunden werden, dass sich Innen- und Außenschalung beim Einfüllen von Beton nicht auseinander bewegen können. Um eine derartige Bewegung zu verhindern, wird ein Schalungsanker von einem Bolzenelement und zwei Arretierungselementen gebildet, wobei letztere, wie bereits erwähnt, zur Übertragung von Zugkräften von den Schalungselementen auf das Bolzenelement geeignet sind.In the aforementioned formwork systems, it is customary to couple the formwork elements forming the inner formwork with the formwork elements which form the outer formwork via formwork anchors, which are guided through anchor holes present in the formwork elements and thus with the formwork anchors Formwork elements are connected, that inner and outer formwork can not move apart when filling concrete. To prevent such movement, a formwork anchor is formed by a bolt element and two locking elements, the latter, as already mentioned, being suitable for transmitting tensile forces from the formwork elements to the bolt element.

Weiterhin sind Schalunsssystemc bekannt, bei denen verhindert wird, dass sich Schalungselemente der Innen- und Außenschalung durch entsprechende Krafteinwirkung, insbesondere beim Einfüllen von Beton, aufeinander zu bewegen, so dass eine letztlich zu erzeugende Wand nach Fertigstellung nicht in allen Bereichen die gewünschte Dicke besäße. So werden in AP 100 A, GB 2 057 042 A , US 913,538 , US 3,167,842 , US 2,584,822 , die 24 08 558 und DE 103 36 414 A1 Schalungsankern beschrieben, die sowohl Zugkräfte als auch Druckkräfte aufnehmen können und damit die Schalungselemente in einem bestimmten Abstand zueinander halten können. Ferner können Schalungselemente durch separate Abstandhalter in einem fixen Abstand gehalten werden, wie in DE 197 54 366 A1 beschrieben ist. AP 100A zeigt schon alle Merkmale des Oberbegriffs des Anspruches 1.Furthermore Schalunsssystemc are known in which prevents shuttering elements of the inner and outer formwork by appropriate force, especially when filling concrete to move toward each other, so that a final wall to be produced after completion would not have the desired thickness in all areas. So in AP 100 A, GB 2 057 042 A . US 913,538 . US 3,167,842 . US 2,584,822 , the 24 08 558 and DE 103 36 414 A1 Formwork anchors described that can absorb both tensile forces and compressive forces and thus hold the formwork elements at a certain distance from each other. Furthermore, shuttering elements can be kept at a fixed distance by separate spacers, as in FIG DE 197 54 366 A1 is described. AP 100A already shows all the features of the preamble of claim 1.

Eine Aufgabe der Erfindung besteht darin, ein Schalungssystem der eingangs genannten Art, derart weiterzubilden, dass zuverlässig verhindert wird, dass sich Innen- und Außenschalung insbesondere beim Einfüllen von Beton aufeinander zu bewegen.An object of the invention is to develop a formwork system of the type mentioned in such a way that it reliably prevents the inner and outer formwork, in particular during the filling of concrete to move towards each other.

Die genannte Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 und insbesondere dadurch gelöst, dass ein Schalungssystem der eingangs genannten Art, das einen aus einem Bolzenelement und zwei mit den Schalungselementen koppelbaren Arretierungselementen bestehenden Schalungsanker umfasst, so ausgebildet wird, dass das eine Arretierungselement unlösbar mit dem Bolzenelement verbunden ist und das andere Arretierungselement lösbar mit dem Bolzenelement verbindbar ist, wobei das Bolzenelement in dem mit ihm fest verbundenen Arretierungselement um seine Längsachse drehbar gelagert ist.The above object is achieved by the features of claim 1 and in particular by the fact that a formwork system of the type mentioned above, comprising a consisting of a bolt element and two locking elements can be coupled with the shuttering elements formwork anchors is formed so that the one locking element insoluble the bolt element is connected and the other locking element is releasably connectable to the bolt element, wherein the bolt element is rotatably mounted in the fixedly connected to it locking element about its longitudinal axis.

Durch die Vorsehung der erfindungsgemäßen Koppelelemente sind die Arretierungselemente weiterhin nicht nur zur Übertragung von Zugkräften, sondern auch zur Übertragung von Druckkräften von den Schalungselementen auf das Bolzenelement geeignet. Auf diese Weise wird der durch die erfindungsgemäßen Schalungsanker definiert eingestellte Abstand zwischen den einander zugewandten Schalungsinnenflächen von Innenschalung und Außenschalung in beiden Richtungen fixiert, so dass sich dieser Abstand beim Einfüllen von Beton oder bei Einwirkung beliebiger anderer Kräfte weder vergrößern noch verkleinern kann. So wird sichergestellt, dass die zu erstellenden Betonwände in allen Bereichen die gewünschte und durch die Schalungsanker vorgegebene Dicke aufweisen.Due to the provision of the coupling elements according to the invention, the locking elements are not only for the transmission of tensile forces, but also for the transmission of compressive forces from the formwork elements on the bolt element suitable. In this way, the distance defined by the shuttering anchors according to the invention between the mutually facing shuttering inner surfaces of inner shuttering and outer shuttering is fixed in both directions, so that this distance can neither increase nor decrease during the filling of concrete or the action of any other forces. This ensures that the concrete walls to be created in all areas have the desired thickness and predetermined by the formwork anchors.

Ferner wird nun erfindungsgemäß erreicht, dass der Monteur pro Schalungsanker lediglich zwei Teile, nämlich das mit dem einen Arretierungselement unlösbar verbundene Bölzenelement und das andere Arretierungseleinent, handhaben muss. Zur MontaF-e kann das unlösbar mit dem Bolzenelement verbundene Arretierungselement ergriffen und das Bolzenelement durch die Ankerlöcher von Innen- und Außenschalung gesteckt werden. Anschließend kann dann an dem dem genannten Arretierungselement gegenüber liegenden Ende des Bolzenelements das andere Arretieruneselement befestigt werden.Furthermore, it is now achieved according to the invention that the fitter per formwork anchors only two parts, namely with the one locking element inextricably connected Bölzenelement and the other Arretierungseleinent handle must. For Monta F- e, the locking element connected inseparably connected to the bolt element can be grasped and the bolt element inserted through the anchor holes of the inner and outer formwork. Subsequently, the other Arretieruneselement can then be attached to the said locking element opposite end of the bolt member.

Bevorzugt werden die einander gegenüberliegenden Schalungsinnenflächen der Innenschalung und der Außenschalung jeweils durch einen Verbund von einzelnen Schalungselementen gebildet Dabei weist jeder Verbund von Schalungselementen jeweils insbesondere kreisrunde Ankerlöcher für die Aufnahme der Bodenelemente der Schalungsanker auf. Diese Ankerlöcher können beispielsweise im Bereich der Verbindungsstellen benachbarter, aneinander angrenzender Schalungselemente vorgesehen sein, so dass jedes Schalungselement in seinen Randbereichen beispielsweise halbkreisförmige Ankerhalblöcher aufweist, die gemeinsam mit halbkreisförmigen Ankerlöchern eines benachbarten Schalungselements vollständige Ankerlöcher bilden.Preferably, the opposing shuttering inner surfaces of the inner formwork and the outer formwork are each formed by a composite of individual formwork elements Here, each composite of formwork elements in each case in particular circular anchor holes for receiving the bottom elements of the formwork anchors. These anchor holes can be provided, for example, in the region of the joints of adjacent, mutually adjacent formwork elements, so that each formwork element has in its edge regions, for example, semicircular Ankerhalblöcher that form complete anchor holes together with semicircular anchor holes of an adjacent formwork element.

Die Arretierungselemente können jeweils eine mit der jeweiligen Außenseite der Schalungselemente zusammenwirkende Zugkraftübertragungsfläche aufweisen. Auf diese Weise lässt sich eine einfache Zugkraftübertragung von den Schalungselementen auf die Arretiez-ungselemente erreichen, indem die Arretierungselemente jeweils so an den Außenseiten der Schalungselemente positioniert werden, dass sie mit ihren Zugkraftübertragungsflächen flächig an den genannten Außenseiten anliegen. In diesem Fall müssen dann die die Ankerlöcher umgebenden Bereiche der Außenseiten der Schalungselemente zum Zusammenwirken mit den Zugkraftübertragungsflächen der Arretierungselemente ausgebildet sein, was insbesondere durch eine ausreichende Stabilität der genannten Bereiche ermöglicht wird.The locking elements may each have a cooperating with the respective outer side of the formwork elements traction transfer surface. In this way, a simple transmission of tensile force from the formwork elements can be achieved on the Arretiez-ungselemente by the locking elements are each positioned on the outer sides of the formwork elements that they rest flatly with their traction transfer surfaces on said outer sides. In this case, then surrounding the anchor holes areas of the outer sides of the shuttering elements for cooperation with the Traction transfer surfaces of the locking elements to be formed, which is made possible in particular by a sufficient stability of said areas.

Besonders bevorzugt ist es, wenn an den Außenseiten der Schalungselemente Hinterschneidungen vorgesehen sind, welche in Wirkverbindung mit an den Koppelelementen der Arretierungselemente vorgesehenen Druckkraftübertragungsflächen bringbar sind. Diese Hinterschneidungen können beispielsweise kostengünstig im Rahmen eines Strangpress-, Roll- oder Walzverfahrens an Profilelementen vorgesehen werden, welche als Randbereiche der Schalungselemente eingesetzt werden. In diesem Fall erstrecken sich die Hinterschneidungen über zumindest im Wesentlichen die gesamte Höhe der Schalungselemente, so dass die genannte Wirkverbindung zwischen den Hinterschneidungen und den Koppelelementen grundsätzlich im gesamten Randbereich der Schalungselemente überall da möglich wird, wo Ankerlöcher vorgesehen sind.It is particularly preferred if undercuts are provided on the outer sides of the formwork elements, which are engageable in operative connection with provided on the coupling elements of the locking elements pressure force transmission surfaces. These undercuts can be provided, for example, inexpensively in the context of an extrusion, rolling or rolling process on profile elements, which are used as edge regions of the formwork elements. In this case, the undercuts extend over at least substantially the entire height of the formwork elements, so that said operative connection between the undercuts and the coupling elements is basically everywhere possible in the entire edge region of the formwork elements where anchor holes are provided.

Die an den Arretierungselementen vorgesehenen Koppelelemente können im Querschnitt hakenförmig ausgebildet werden, so dass sie mit den Hinterschneidungen der Schalungselemente verhakbar sind. Auf diese Weise lässt sich eine besonders einfache Wirkverbindung zwischen Koppelelementen und Schalungselementen in kurzer Zeit herstellen. Alternativ könnte bei einer etwas verschlechterten Ausführungsform das Arretierungselement oder das Bolzenelement auch mit dem Schalungselement verschraubt werden. In diesem Fall würde das entsprechende Gewinde dann sowohl Zugkräfte als auch Druckkräfte von den Schalungselementen auf das Bolzenelement übertragen. Das seitens der Arretierungselemente oder des Bolzenelements vorhandene Gewinde würde in diesem Fall dann unter anderem das erfindungsgemäße Koppelelement zur Übertragung von Druckkräften von den Schalungselementen auf das Bolzenelement bilden.The coupling elements provided on the locking elements can be hook-shaped in cross section, so that they can be hooked to the undercuts of the formwork elements. In this way, a particularly simple operative connection between coupling elements and formwork elements can be produced in a short time. Alternatively, in a slightly deteriorated embodiment, the locking element or the bolt element could also be screwed to the formwork element. In this case, the corresponding thread would then transmit both tensile forces and compressive forces from the formwork elements on the bolt element. The existing on the part of the locking elements or the bolt element thread would in this case, inter alia, the coupling element according to the invention for transmission form of compressive forces of the formwork elements on the bolt element.

Die Arretierungselemente weisen bevorzugt ein im Wesentlichen quaderförmiges Gehäuse auf, an welches das Koppelelement angeformt ist. Dieses quaderförmige Gehäuse einschließlich des Koppelelements kann beispielsweise mittels eines Strangpress-, Roll- oder Walzverfahrens als Meterware hergestellt werden, von welcher die einzelnen Gehäuse dann in der gewünschten Länge abgeschnitten werden können. In den Schnittbereichen sind die auf die genannte Weise hergestellten Gehäuse dann an zwei einander gegenüberliegenden Seiten offen.The locking elements preferably have a substantially cuboid housing, to which the coupling element is integrally formed. This block-shaped housing including the coupling element can be manufactured by meter, for example by means of an extrusion, rolling or rolling process, from which the individual housing can then be cut to the desired length. In the intersection areas, the housings made in the aforementioned manner are then open on two opposite sides.

Erfindungsgemäß ist das eine Arretierungselement unlösbar mit dem Bolzenelement verbunden, während das andere Arretierungselement lösbar mit dem Bolzenelement verbindbar ist. Hierdurch wird erreicht, dass der Monteur pro Schalungsanker lediglich zwei Teile, nämlich das mit dem einen Arretierungselement unlösbar verbundene Bolzenelement und das andere Arretierungselement, handhaben muss. Zur Montage kann das unlösbar mit dem Bolzenelement verbundene Arretierungselement ergriffen und das Bolzenelement durch die Ankerlöcher von Innen- und Außenschalung gesteckt werden. Anschließend kann dann an dem dem genannten Arretierungselement gegenüber liegenden Ende des Bolzenelements das andere Arretierungselement befestigt werden.
Wie bereits erwähnt ist das Bolzenelement in dem mit ihm fest verbundenen Arretierungselement um seine Längsachse drehbar gelagert. Dabei kann das Bolzenelement auf der der Zugkraftübertragungsfläche abgewandten Seite aus dem mit ihm fest verbundenen Arretierungselement bzw. Gehäuse hervorstehen. In diesem hervorstehenden Bereich ist dann am Bolzenelement bevorzugt eine Angriffsfläche für ein Werkzeug vorgesehen. Insbesondere ist dieser hervorstehende Bereich als Vier- oder Sechskant ausgebildet, so dass er mittels eines Werkzeugs auf einfache Weise um die Längsachse des Bolzenelements verdrehbar ist.
An seinem dem mit ihm fest verbundenen Arretierungselement abgewandten Endbereich kann das Bolzenelement mit einem Gewinde zum Einschrauben in das vom Bolzenelement lösbare Arretierungselement versehen sein. In diesem Fall kann das Bolzenelement an seinem mit ihm fest verbundenen Arretierungselement ergriffen und durch die beiden Ankerlöcher von Innen- und Außenschalung gesteckt werden, woraufhin durch ein Verdrehen der Werkzeug-Angriffsfläche um die Längsachse des Bolzenelements von Hand oder mittels eines Werkzeugs ein Einschrauben des genannten Gewindes in das vom Bolzenelement lösbare Arretierungselement bewirkt werden kann.
According to the invention, one locking element is inseparably connected to the bolt element, while the other locking element is detachably connectable to the bolt element. This ensures that the fitter per formwork anchor only two parts, namely the one with the locking element inextricably connected bolt element and the other locking element, must handle. For mounting the non-releasably connected to the bolt element locking element can be grasped and the bolt element can be inserted through the anchor holes of the inner and outer formwork. Subsequently, the other locking element can then be attached to the said locking element opposite end of the bolt element.
As already mentioned, the bolt element is rotatably mounted about its longitudinal axis in the locking element firmly connected to it. In this case, the bolt element on the side facing away from the traction transfer surface can protrude from the locking element or housing firmly connected to it. In this protruding region, the bolt element is then preferably an engagement surface for a tool intended. In particular, this protruding region is designed as a hexagon or hexagon, so that it can be rotated by means of a tool in a simple manner about the longitudinal axis of the bolt element.
The bolt element can be provided with a thread for screwing into the locking element which can be released from the bolt element at its end region which is fixedly connected to it with a locking element. In this case, the bolt element can be grasped at its firmly connected with him locking element and inserted through the two anchor holes of the inner and outer formwork, whereupon by turning the tool-engaging surface about the longitudinal axis of the bolt member by hand or by means of a tool screwing said Thread in the releasable from the bolt element locking element can be effected.

Bevorzugt ist das Bolzenelement konisch ausgebildet, wobei der Querschnitt des Bolzenelements insbesondere mit zunehmendem Abstand von dem mit ihm fest verbundenen Arretierungselement abnimmt. Hierdurch wird erreicht, dass das Bolzenelement nach dem Erstarren des Betons problemlos aus den Ankerlöchern bzw. dem erstarrten Beton herausgezogen werden kann.Preferably, the bolt element is conical, wherein the cross section of the bolt element decreases in particular with increasing distance from the locking element firmly connected to it. This ensures that the bolt element after solidification of the concrete can be easily pulled out of the anchor holes or the solidified concrete.

Es ist von Vorteil, wenn das vom Bolzenelement lösbare Arretierungselement mit einer Gewindehülse versehen ist, in welche das Bolzenelement einschraubbar ist, wobei der Außendurchmesser der Gewindehülse ungefähr so bemessen ist, wie der Innendurchmesser der in den Schalungselementen ausgebildeten Ankerlöcher. Dabei ist die Länge des aus dem Arretierungselement hervorstehenden Abschnitts der Gewindehülse bevorzugt so bemessen, dass sie sich zumindest über die gesamte Dicke eines mit dem Arretierungselement zusammenwirkenden Schalungselements erstreckt. Auf diese Weise kann die Gewindehülse mit dem in sie eingeschraubten Bolzenelement das Ankerloch eines Schalungselements im Bereich der Schalungsinnenfläche in der Weise verschließen, dass kein flüssiger Beton in die Ankerlöcher eintreten und somit aus der Schalung austreten kann. Diese Abdichtungsfunktion der Gewindehülse ist insbesondere deswegen relevant, weil das Gewinde, wie bereits erwähnt, am dünneren Endbereich des konisch ausgebildeten Bolzenelements vorgesehen ist, so dass hier ohne Gewindehülse zwischen der Umrandung des Ankerlochs und dem Bolzenelement ein Zwischenraum existieren würde. Dieser Zwischenraum wird jedoch durch die beschriebene Gewindehülse ausgefüllt.It is advantageous if the locking element detachable from the bolt element is provided with a threaded sleeve into which the bolt element can be screwed in, the outside diameter of the threaded sleeve being approximately the same as the inside diameter of the anchor holes formed in the formwork elements. The length of the protruding from the locking element portion of the threaded sleeve is preferably dimensioned so that it extends at least over the entire thickness of a cooperating with the locking element shuttering element. In this way, the threaded sleeve with the screwed into it Bolt element close the anchor hole of a formwork element in the region of the shuttering inner surface in such a way that no liquid concrete enter the anchor holes and thus can escape from the formwork. This sealing function of the threaded sleeve is particularly relevant because the thread, as already mentioned, is provided at the thinner end portion of the conical bolt element, so that there would exist a gap between the border of the anchor hole and the bolt element without a threaded sleeve. However, this gap is filled by the threaded sleeve described.

Die genannte Gewindehülse kann unlösbar mit dem ihr zugeordneten Arretierungselement verbunden sein, was die Anzahl der handzuhabenden Teile gering hält.Said threaded sleeve can be permanently connected to its associated locking element, which keeps the number of parts to be handled low.

In den Gehäusen der Arretierungselemente kann jeweils ein Arretierungsblock gehalten sein, welcher mit dem Bolzenelement lösbar verbindbar oder fest verbunden ist. Bei einer festen Verbindung zwischen Arretierungsblock und Bolzenelement ist das Bolzenelement bevorzugt drehbar im Arretierungsblock gelagert, kann jedoch nicht aus dem Arretierungsblock herausgezogen werden. Bei einer lösbaren Verbindung zwischen Bolzenelement und Arretierungsblock kann das Bolzenelement entweder direkt in den Arretierungsblock oder in eine mit ihm fest verbundene Gewindehülse der bereits erläuterten Art eingeschraubt werden.In the housings of the locking elements can each be held a locking block, which is detachably connected to the bolt element or firmly connected. In a fixed connection between the locking block and the bolt element, the bolt element is preferably rotatably mounted in the locking block, but can not be pulled out of the locking block. In a releasable connection between the bolt element and locking block, the bolt element can be screwed either directly into the locking block or in a firmly connected with him threaded sleeve of the type already explained.

Die Gehäuse der Arretierungselemente können an einander gegenüberliegenden Seiten mit zueinander ausgerichteten Bolzenlöchern versehen sein, durch welche das Bolzenelement gesteckt werden kann. Diese Bolzenlöcher sind zum einen nötig, um das Bolzenelement mit den erwähnten Arretierungsblöcken, welche sich im Inneren der Gehäuse befinden, koppeln zu können. Zum anderen sind die genannten Bolzenlöcher erforderlich, um ein Bolzenelement mit seiner Werkzeug-Angriffsfläche aus der dem Schalungselement abgewandten Seite des Gehäuses hervorstehen zu lassen.The housing of the locking elements can be provided on mutually opposite sides with mutually aligned bolt holes through which the bolt element can be inserted. On the one hand, these bolt holes are necessary in order to couple the bolt element with the mentioned locking blocks, which are located inside the housings to be able to. On the other hand, said bolt holes are required in order to allow a bolt element with its tool engagement surface to protrude from the side of the housing facing away from the formwork element.

Besonders vorteilhaft ist es, wenn die Bolzenlöcher jeweils die Form eines gekrümmten Langlochs aufweisen, in welchen das Bolzenelement und/oder die Gewindehülse verschiebbar sind. Durch diese Verschiebbarkeit kann letztlich das Gehäuse relativ zum Bolzenelement bzw. zur Gewindehülse bewegt werden, nachdem Bolzenelement und Gewindehülse in die Ankerlöcher der Schalungselemente eingeführt wurden, um so beispielsweise ein Verhaken der am Gehäuse vorgesehenen Koppelelemente mit Hinterschneidungen der Schalungselemente zu bewirken.It is particularly advantageous if the bolt holes each have the shape of a curved oblong hole, in which the bolt element and / or the threaded sleeve are displaceable. As a result of this displaceability, the housing can ultimately be moved relative to the bolt element or to the threaded sleeve, after the bolt element and threaded sleeve have been introduced into the anchor holes of the formwork elements, in order for example to cause hooking of the coupling elements provided on the housing with undercuts of the formwork elements.

Weitere bevorzugte Ausführungsformen der Erfindung sind in den Unteransprüchen beschrieben.Further preferred embodiments of the invention are described in the subclaims.

Die Erfindung wird nachfolgend beispielhaft anhand von Ausführungsbeispielen unter Bezugnahme auf die Figuren beschrieben; in diesen zeigen:

Fig. 1
eine dreidimensionale Ansicht eines erfindungsgemäß einsetzbaren Schalungsankers,
Fig. 2
einen Querschnitt durch einen Schalungsanker gemäß Fig. 1, wobei der Schalungsanker mit Schalungselementen einer Innenschalung sowie einer Außenschalung gekoppelt ist,
Fig. 3a - c
aufeinander folgende Verfahrensschritte beim Koppeln eines mit einer Gewindehülse versehenen Arretierungselements mit einer Schalung, und
Fig. 4a - c
aufeinander folgende Verfahrensschritte beim Koppeln eines unlösbar mit einem Arretierungselement verbundenen Bol- zenelements mit einer Schalung gemäß Fig. 3c.
The invention will now be described by way of example with reference to embodiments with reference to the figures; in these show:
Fig. 1
3 shows a three-dimensional view of a formwork anchor which can be used according to the invention,
Fig. 2
a cross section through a formwork anchor according to Fig. 1 wherein the formwork anchor is coupled to formwork elements of an inner formwork and an outer formwork,
Fig. 3a - c
successive steps in the coupling of a provided with a threaded sleeve locking element with a formwork, and
Fig. 4a - c
successive steps in the coupling of a non-releasably connected to a locking element bolt zenelements with a formwork according to Fig. 3c ,

Fig. 1 zeigt einen Ankerbolzen 1, welcher in seinen beiden einander abgewandten Endbereichen mit jeweils einem Arretierungselement 2, 3 gekoppelt ist. Fig. 1 shows an anchor bolt 1, which is coupled in its two opposite end portions, each with a locking element 2, 3.

Beide Arretierungselemente 2, 3 bestehen jeweils aus einem Gehäuse 4, 5, wobei in jedem Gehäuse 4, 5 jeweils ein Arretierungsblock 6, 7 angeordnet ist.Both locking elements 2, 3 each consist of a housing 4, 5, wherein in each case 4, 5 each have a locking block 6, 7 is arranged.

Die Gehäuse 4, 5 sind mittels eines Strangpress-, Roll- oder Walzverfahrens als Meterware hergestellt, von der sie in der gewünschten Länge entlang der Schnittflächen 8 abgeschnitten werden. Dies hat zur Folge, dass die Gehäuse 4, 5 stirnseitig im Bereich der Schnittflächen 8 offen sind, so dass durch diese offenen Seiten die Arretierungsblöcke 6, 7 in die Gehäuse 4, 5 eingeschoben werden können.The housings 4, 5 are manufactured by the meter by means of an extrusion, rolling or rolling process, from which they are cut off at the desired length along the cut surfaces 8. This has the consequence that the housing 4, 5 are open at the end in the region of the cut surfaces 8, so that the locking blocks 6, 7 can be inserted into the housing 4, 5 through these open sides.

An die Gehäuse 4, 5 ist jeweils ein Koppelelement 9, 10 zur Übertragung von Druckkräften von Schalungselementen auf das Bolzenelement 1 angeformt, wobei diese Koppelelemente 9, 10 einen über die gesamte Länge der Gehäuse 4, 5 einen konstanten Querschnitt besitzen, so dass die Koppelelemente 9, 10 gleichzeitig mit den Gehäusen 4, 5 durch ein Strangpress-, Roll- oder Walzverfahren herstellbar sind. Die Koppelelemente 9, 10 sind im Querschnitt hakenförmig ausgebildet, so dass sie mit entsprechenden Hinterschneidungen der Schalungselemente verhakbar sind (siehe Fig. 2). Die Orientierung der beiden Koppelelemente 9, 10 ist derart gewählt, dass sie sich hakenförmig in zueinander entgegengesetzte Richtungen erstrecken.To the housings 4, 5 is in each case a coupling element 9, 10 is formed for transmitting compressive forces of formwork elements on the bolt element 1, said coupling elements 9, 10 over the entire length of the housing 4, 5 have a constant cross-section, so that the coupling elements 9, 10 can be produced simultaneously with the housings 4, 5 by an extrusion, rolling or rolling process. The coupling elements 9, 10 are hook-shaped in cross section, so that they can be hooked with corresponding undercuts of the formwork elements (see Fig. 2 ). The orientation of the two coupling elements 9, 10 is chosen such that they extend hook-shaped in opposite directions.

Das Bolzenelement 1 ist aus einem insbesondere metallischen Vollmaterial gefertigt und besitzt eine konische, sich mit zunehmendem Abstand vom Arretierungselement 2 verjüngende Form. Weiterhin ist das Bolzenelement 1 im Arretierungsblock 6 des Arretierungselements 2 unlösbar, jedoch drehbar gehalten, wobei es aus dem Gehäuse 4 in einer dem Arretierungselement 3 abgewandten Richtung hervorsteht. Dieser hervorstehende Bereich des Bolzenelements 1 ist als Sechskant 11 ausgebildet, über welchen das Bolzenelement 1 von Hand oder mittels eines Werkzeugs relativ zu den Arretierungselementen 2, 3 um seine Längsachse verdreht werden kann.The bolt element 1 is made of a particular metallic solid material and has a conical, tapering with increasing distance from the locking element 2 shape. Furthermore, the bolt member 1 in the locking block 6 of the locking element 2 is insoluble, but rotatably supported, wherein it protrudes from the housing 4 in a direction facing away from the locking element 3. This projecting portion of the bolt member 1 is formed as a hexagon 11, via which the bolt member 1 by hand or by means of a tool relative to the locking elements 2, 3 can be rotated about its longitudinal axis.

Der im Gehäuse 5 aufgenommene Arretierungsblock 7 ist fest mit einer Gewindehülse 12 gekoppelt, welche in Richtung des Arretierungselements 2 aus dem Gehäuse 5 hervorsteht. Die Gewindehülse 12 ist innenseitig mit einem Gewinde versehen, in welches das Bolzenelement 1 mit seinem dem Arretierungselement 2 abgewandten Ende eingeschraubt werden kann. Jedes der beiden Gehäuse 4, 5 besitzt in einander gegenüberliegenden Gehäuseseiten jeweils ein Bolzenloch 13, 14, welches jeweils die Form eines gekrümmten Langlochs aufweist. Die beiden Bolzenlöcher 13, 14 jedes Gehäuses 4, 5 sind miteinander ausgerichtet. In Fig. 1 ist aufgrund der gewählten Perspektive jeweils nur ein Bolzenloch 13, 14 pro Gehäuse 4, 5 zu sehen.The recorded in the housing 5 locking block 7 is fixedly coupled to a threaded sleeve 12 which protrudes in the direction of the locking element 2 from the housing 5. The threaded sleeve 12 is provided on the inside with a thread into which the bolt element 1 can be screwed with its end facing away from the locking element 2. Each of the two housings 4, 5 has in opposite housing sides in each case a bolt hole 13, 14, which in each case has the shape of a curved oblong hole. The two bolt holes 13, 14 of each housing 4, 5 are aligned with each other. In Fig. 1 Due to the selected perspective, only one bolt hole 13, 14 can be seen per housing 4, 5.

Auf Seiten des Arretierungselements 2 erstreckt sich das Bolzenelement 1 durch beide Bolzenlöcher 13, wohingegen sich beim Arretierungselement 3 die Gewindehülse 12 durch das dem Arretierungselement 2 zugewandte, in Fig. 1 nicht sichtbare Bolzenloch 14 erstreckt. Das andere, in Fig. 1 sichtbare Bolzenloch 14 ermöglicht den Durchtritt des Bolzenelementendes 15, wenn dieses weit genug in die Gewindehülse 12 eingeschraubt ist.On the side of the locking element 2, the bolt element 1 extends through both bolt holes 13, whereas in the locking element 3, the threaded sleeve 12 by the locking element 2 facing, in Fig. 1 invisible bolt hole 14 extends. The other, in Fig. 1 visible bolt hole 14 allows the passage of the bolt element end 15, if this is screwed far enough into the threaded sleeve 12.

Die Bolzenlöcher 13, 14 sind als Langlöcher derart gekrümmt, dass sich jeweils ihre oberen Bereiche näher an den mit den Koppelelementen 9, 10 versehenen Seiten der Gehäuse 4, 5 befinden als ihre unteren Bereiche.The bolt holes 13, 14 are curved in the form of elongated holes such that their respective upper regions are closer to the sides of the housings 4, 5 provided with the coupling elements 9, 10 than their lower regions.

Fig. 2 zeigt einen Schnitt durch einen Schalungsanker gemäß Fig. 1, wobei dieser Schalungsanker gemäß Fig. 2 nun mit Schalungselementen einer Innen- sowie einer Außenschalung verbunden ist. Hinsichtlich des Schalungsankers sind in Fig. 2 die gleichen Bezugszeichen verwendet wie in Fig. 1. Fig. 2 shows a section through a formwork anchor according to Fig. 1 , this formwork anchor according to Fig. 2 is now connected to formwork elements of an inner and an outer formwork. With regard to the formwork anchor are in Fig. 2 the same reference numerals are used as in FIG Fig. 1 ,

Fig. 2 zeigt dementsprechend zwei miteinander gekoppelte Schalungselemente 16 einer Innenschalung sowie zwei miteinander gekoppelte Schalungselemente 17 einer Außenschalung. Fig. 2 shows accordingly two mutually coupled formwork elements 16 of an inner formwork and two mutually coupled formwork elements 17 an outer formwork.

Im Bereich der Koppelstellen der Schalungselemente 16, 17 ist in der Innenschalung sowie in der Außenschalung jeweils ein Ankerloch 18 vorgesehen, welches sich vollständig durch die Innen- und Außenschalung hindurch erstreckt und senkrecht zu den Schalungsinnenflächen 19, 20 der Innen- und Außenschalung verläuft.In the region of the coupling points of the formwork elements 16, 17, an anchor hole 18 is provided in the inner formwork and in the outer formwork, which extends completely through the inner and outer formwork and extends perpendicular to the formwork inner surfaces 19, 20 of the inner and outer formwork.

Innen- und Außenschalung besitzen jeweils auf ihrer der Schalungsinnenfläche 19, 20 abgewandten Außenseite eine sich zur Schalungsinnenfläche 19, 20 parallel erstreckende Anlagefläche, an welcher Zugkraftübertragungsflächen 21, 22 der Gehäuse 4, 5 anliegen. Die Zugkraftübertragungsflächen 21, 22 (siehe Fig. 1) befinden sich an den einander zugewandten Seiten der Gehäuse 4, 5.Inner and outer formwork each have their outer side facing away from the formwork inner surface 19, 20 a to the shuttering inner surface 19, 20 parallel extending contact surface, on which tensile force transmission surfaces 21, 22 of the housing 4, 5 abut. The traction transfer surfaces 21, 22 (see Fig. 1 ) are located on the mutually facing sides of the housing 4, 5.

Ferner sind die Schalungselemente 16, 17 auf ihren den Schalungsinnenflächen 19, 20 abgewandten Seiten mit jeweils einer Hinterschneidung 23, 24 versehen, welche jeweils von den hakenförmigen Koppelelementen 9, 10 hintergriffen werden, so dass sich letztlich eine Verhakung zwischen den Koppelelementen 9 bzw. 10 und den Hinterschneidungen 23 bzw. 24 ergibt. Diejenigen Bereiche der Koppelelemente 9, 10, die in Kontakt mit den Hinterschneidungen 23, 24 sind, bilden die bereits erwähnten Druckkraftübertragungsflächen der Koppelelemente 9, 10.Furthermore, the formwork elements 16, 17 are provided on their sides facing away from the formwork inner surfaces 19, 20, each with an undercut 23, 24 which are respectively engaged behind by the hook-shaped coupling elements 9, 10, so that ultimately an entanglement between the coupling elements 9 and 10 respectively and the undercuts 23 and 24 results. Those areas of the coupling elements 9, 10 which are in contact with the undercuts 23, 24 form the already mentioned pressure force transmission surfaces of the coupling elements 9, 10.

Das Bolzenelement 1 ist mittels eines Sprengrings 26 im Arretierungsblock 6 derart fixiert, dass es um seine Längsachse drehbar ist, jedoch nicht vom Arretierungsblock 6 gelöst werden kann.The bolt element 1 is fixed by means of a snap ring 26 in the locking block 6 such that it is rotatable about its longitudinal axis, but can not be released from the locking block 6.

Ferner weist das Bolzenelement 1 an seinem dem Sechskant 11 abgewandten Ende ein Außengewinde 25 auf, welches in ein entsprechendes Innengewinde der Gewindehülse 12 eingeschraubt ist. Die Gewindeabschnitte des genannten Außengewindes 25 und des Innengewindes der Gewindehülse 12 erstrecken sich ausschließlich im Bereich des Gehäuses 5; sie erstrecken sich im dargestellten Ausführungsbeispiel also nicht bis in denjenigen Bereich, welcher innerhalb der Schalungselemente 17 zu liegen kommt. Alternativ wäre es jedoch auch möglich, das Innengewinde der Gewindehülse 12 und das Außengewinde 25 des Bolzenelements 1 so anzuordnen, dass sie sich zumindest abschnittsweise bis in denjenigen Bereich erstrecken, welcher letztlich innerhalb der Schalungselemente 17 zu liegen kommt.Furthermore, the bolt element 1 at its end facing away from the hexagon 11 has an external thread 25, which is screwed into a corresponding internal thread of the threaded sleeve 12. The threaded portions of said external thread 25 and the internal thread of the threaded sleeve 12 extend exclusively in the region of the housing 5; In the illustrated embodiment, they therefore do not extend into that region which comes to rest within the formwork elements 17. Alternatively, however, it would also be possible to arrange the internal thread of the threaded sleeve 12 and the external thread 25 of the bolt element 1 such that they extend at least in sections into that region which ultimately comes to rest within the formwork elements 17.

Die Länge der Gewindehülse 12 ist derart bemessen, dass sie sich vollständig durch die Schalungselemente 17 hindurch erstreckt, so dass das in den Schalungselementen 17 ausgebildete Ankerloch 18 durch die Gewindehülse 12 und das Bolzenelement 1 in ausreichender Weise verschlossen und abgedichtet wird.The length of the threaded sleeve 12 is dimensioned such that it extends completely through the formwork elements 17, so that the formed in the formwork elements 17 anchor hole 18 through the threaded sleeve 12 and the bolt member 1 is sealed and sealed in a sufficient manner.

Die in Fig. 2 dargestellte Anordnung zeigt, dass durch das Zusammenwirken der Zugkraftübertragungsflächen 21, 22 mit den Außenseiten der Schalungselemente 16, 17 Zugkräfte von den Schalungselementen 16, 17 über die Gehäuse 4, 5 auf das Bolzenelement 1 übertragen werden können. In gleicher Weise können Druckkräfte von den Schalungselementen 16, 17 über die Gehäuse 4, 5 auf das Bolzenelement 1 übertragen werden, da die Koppelelemente 9, 10 im Bereich ihrer Druckkraftübertragungsflächen mit den Hinterschneidungen 23, 24 verhakt sind.In the Fig. 2 shown arrangement that can be transmitted by the interaction of the traction transfer surfaces 21, 22 with the outer sides of the formwork elements 16, 17 tensile forces of the shuttering elements 16, 17 on the housing 4, 5 on the bolt element 1. In the same way, compressive forces can be transmitted from the formwork elements 16, 17 via the housings 4, 5 to the bolt element 1, since the coupling elements 9, 10 are hooked to the undercuts 23, 24 in the region of their pressure force transmission surfaces.

Anhand der nachfolgend erläuterten Fig. 3a - c und Fig. 4a - c wird beschrieben, in welcher Weise ein Schalungsanker gemäß den Fig. 1 und 2 mit einer Schalung gemäß Fig. 2 verbunden werden kann.Based on the following Fig. 3a - c and Fig. 4a - c describes how a formwork anchor according to the Fig. 1 and 2 with a formwork according to Fig. 2 can be connected.

Die Fig. 3a - 4c zeigen jeweils einen Schnitt durch Schalungselemente 16, 17 entsprechend Fig. 2 sowie durch die entsprechenden Elemente des Schalungsankers einschließlich jeweils einer Draufsicht auf die Gehäuse 4, 5 der Arretierungselemente 2, 3 in Richtung der Pfeile A. In den Fig. 3a - c sind jeweils Draufsichten auf die Gehäuse 5, in den Fig. 4a - c jeweils Draufsichten auf die Gehäuse 4 gezeigt.The Fig. 3a - 4c each show a section through shuttering elements 16, 17 accordingly Fig. 2 and by the corresponding elements of the formwork anchor including a respective plan view of the housing 4, 5 of the locking elements 2, 3 in the direction of arrows A. In the Fig. 3a - c are respectively plan views of the housing 5, in the Fig. 4a - c each plan views of the housing 4 shown.

Gemäß Fig. 3a wird das Arretierungselement 3 (Fig. 1) an seinem Gehäuse 5 ergriffen und mit der Gewindehülse 12 voran in das Ankerloch 18, welches in den Schalungselementen 17 ausgebildet ist, eingeführt. Während dieses Einführens ist es unbeachtlich, an welcher Position des Bolzenlochs 14 sich die in diesem Bolzenloch 14 verschiebbare Gewindehülse 12 befindet. Beispielsweise kann sich die Gewindehülse 12 im oberen Bereich des Bolzenlochs 14 befinden, wie dies in Fig. 3a dargestellt ist.According to Fig. 3a the locking element 3 ( Fig. 1 ) is gripped on its housing 5 and inserted with the threaded sleeve 12 first into the anchor hole 18 which is formed in the formwork elements 17. During this insertion, it is irrelevant at which position of the bolt hole 14, the sliding in this bolt hole 14 threaded sleeve 12 is located. For example, the threaded sleeve 12 may be located in the upper region of the bolt hole 14, as in Fig. 3a is shown.

Wenn nun die Gewindehülse 12 so weit in das Ankerloch 18 eingeschoben ist, dass das Koppelelement 10 an der Hinterschneidung 24 anstoßen würde, muss das Gehäuse 5 relativ zur Gewindehülse 12 derart angehoben werden, dass sich die Gewindehülse 12 innerhalb des Bolzenlochs 14 nach unten bewegt. Durch die Krümmung des Bolzenlochs 14 wird durch diese Bewegung erreicht, dass sich das Koppelelement 10 in Richtung des Pfeils B gemäß Fig. 3b bewegt, so dass es beim weiteren Einschieben der Gewindehülse 12 in das Ankerloch 18 nicht mit der Hinterschneidung 24 kollidiert. Dementsprechend kann bei der genannten Position der Gewindehülse 12 im Bolzenloch 14 das Koppelelement 10 über die Hinterschneidung 24 hinweg bewegt werden, wie dies aus Fig. 3b ersichtlich ist. In dieser Position ist die Gewindehülse 12 vollständig in das Ankerloch 18 eingeschoben. Allerdings wäre bei der Position gemäß Fig. 3b noch ein Herausziehen der Gewindehülse 12 aus dem Ankerloch 18 möglich, da Koppelelement 10 und Hinterschneidung 24 noch nicht miteinander verhakt sind.Now, if the threaded sleeve 12 is inserted so far into the anchor hole 18 that the coupling element 10 would abut the undercut 24, the housing 5 must be raised relative to the threaded sleeve 12 such that the threaded sleeve 12 moves within the bolt hole 14 down. By the curvature of the bolt hole 14 is achieved by this movement that the coupling element 10 in the direction of arrow B in accordance Fig. 3b moved so that it does not collide with the further insertion of the threaded sleeve 12 in the anchor hole 18 with the undercut 24. Accordingly, in the mentioned position of the threaded sleeve 12 in the bolt hole 14, the coupling element 10 can be moved over the undercut 24, as can be seen from Fig. 3b is apparent. In this position, the threaded sleeve 12 is fully inserted into the anchor hole 18. However, the position would be according to Fig. 3b still pulling out the threaded sleeve 12 from the anchor hole 18 is possible because the coupling element 10 and undercut 24 are not yet hooked together.

Anschließend wird dann gemäß Fig. 3c das Gehäuse 5 wiederum abgesenkt, so dass sich die Gewindehülse 12 im Bolzenloch 14 in dessen oberen Bereich hinein bewegt. Hierdurch wird eine Bewegung des Gehäuses 5 in Richtung des in Fig. 3c eingezeichneten Pfeils C erreicht, und zwar derart, dass das Koppelelement 10 die Hinterschneidung 24 hintergreift, so dass Koppelelement 10 und Hinterschneidung 24 letztlich miteinander verhakt sind. Durch diese Verhakung wird erreicht, dass das Gehäuse 5 mit der Gewindehülse 12 nicht mehr entgegen der Pfeilrichtung A aus dem Ankerloch 18 herausbewegt werden kann.Subsequently, then according to Fig. 3c the housing 5 in turn lowered, so that the threaded sleeve 12 moves in the bolt hole 14 in its upper region. As a result, a movement of the housing 5 in the direction of in Fig. 3c drawn arrow C reaches, in such a way that the coupling element 10 engages behind the undercut 24, so that coupling element 10 and undercut 24 are ultimately hooked together. By this entanglement is achieved that the housing 5 with the threaded sleeve 12 can not be moved out of the anchor hole 18 counter to the arrow A direction.

Gemäß Fig. 4a wird nun das fest mit dem Arretierungselement 2 (Fig. 1) verbundene Bolzenelement 1 durch das Ankerloch 18 der Schalungselemente 16 gesteckt, wobei es bei diesem Vorgang analog zu Fig. 3a wiederum nicht darauf ankommt, an welcher Stelle des im Gehäuse 4 ausgebildeten Bolzenlochs 13 sich das Bolzenelement 1 befindet. Im Beispiel gemäß Fig. 4a befindet sich das Bolzenelement 1 im Bereich des oberen Endes des Bolzenlochs 13.According to Fig. 4a Now that is fixed to the locking element 2 ( Fig. 1 ) connected bolt element 1 through the anchor hole 18 of the formwork elements 16 inserted, whereby it is analogous to Fig. 3a again does not matter at what point of the formed in the housing 4 bolt hole 13, the bolt element 1 is located. In the example according to Fig. 4a is the bolt member 1 in the region of the upper end of the bolt hole thirteenth

Das Bolzenelement 1 wird nun so weit in das Ankerloch 18 eingeführt bzw. in die Gewindehülse 12 eingeschraubt, bis das Koppelelement 9 mit der Hinterschneidung 23 der Schalungselemente 16 kollidieren würde. Anschließend erfolgt dann gemäß Fig. 4b ein Anheben des Gehäuses 4 derart, dass das Bolzenelement 1 in den unteren Bereich des gekrümmten Bolzenlochs 13 bewegt wird, wodurch analog zu Fig. 3b eine Bewegung des Gehäuses 4 in Richtung des Pfeils D erzielt wird. In dieser Stellung kann das Koppelelement 9 durch fortgesetztes Einschrauben in die Gewindehülse 12 über die Hinterschneidung 23 hinweg bewegt werden, bis das Bolzenelement 1 über den Sechskant 11 vollständig in die Gewindehülse 12 eingeschraubt ist.The bolt element 1 is now so far inserted into the anchor hole 18 and screwed into the threaded sleeve 12 until the coupling element 9 would collide with the undercut 23 of the formwork elements 16. Subsequently, then according to Fig. 4b a lifting of the housing 4 such that the bolt member 1 is moved in the lower portion of the curved bolt hole 13, whereby analogous to Fig. 3b a movement of the housing 4 in the direction of the arrow D is achieved. In this position, the coupling element 9 can be moved by continued screwing into the threaded sleeve 12 on the undercut 23 away until the bolt member 1 is completely screwed through the hex 11 into the threaded sleeve 12.

Nach dem vollständigen Einschrauben des Bolzenelements 1 in die Gewindehülse 12 wird dann das Gehäuse 4 wiederum nach unten bewegt, so dass sich das Bolzenelement 1 innerhalb des Bolzenlochs 13 nach oben bewegt. Hierdurch wird nun eine Bewegung des Gehäuses 4 in Richtung des Pfeils E gemäß Fig. 4c erreicht, so dass das Koppelelement 9 die Hinterschneidung 23 hintergreift. Es ergibt sich also analog zu Fig. 3c eine Verhakung zwischen Koppelelement 9 und Hinterschneidung 23.After complete screwing of the bolt member 1 in the threaded sleeve 12, the housing 4 is then moved down again, so that the bolt member 1 moves within the bolt hole 13 upwards. As a result, a movement of the housing 4 in the direction of arrow E is now according to Fig. 4c achieved, so that the coupling element 9, the undercut 23 engages behind. It follows, then, analogously to Fig. 3c a hooking between coupling element 9 and undercut 23rd

In der in Fig. 4c dargestellten Position - welche der Anordnung gemäß Fig. 2 entspricht - ist der Schalungsanker endgültig mit den Schalungselementen 16, 17 verbunden und dazu in der Lage, von den Schalungselementen 16, 17 Zug- als auch Druckkräfte über die Gehäuse 4, 5 auf das Bolzenelement 1 zu übertragen.In the in Fig. 4c shown position - which the arrangement according to Fig. 2 corresponds - is the formwork anchors finally connected to the formwork elements 16, 17 and capable of the formwork elements 16, 17 tensile and compressive forces on the housing 4, 5 to transfer to the bolt element 1.

BezusszeichenlisteBezusszeichenliste

11
Bolzenelementbolt element
22
Arretierungselementlocking
33
Arretierungselementlocking
44
Gehäusecasing
55
Gehäusecasing
66
Arretierungsblocklocking block
77
Arretierungsblocklocking block
88th
Schnittflächencut surfaces
99
Koppelelementcoupling element
1010
Koppelelementcoupling element
1111
Sechskanthexagon
1212
Gewindehülsethreaded sleeve
1313
Bolzenlochbolt hole
1414
Bolzenlochbolt hole
1515
BolzenelementendeBolt element end
1616
Schalungselementeformwork elements
1717
Schalungselementeformwork elements
1818
Ankerlochanchor hole
1919
SchalungsinnenflächenFormwork inner surfaces
2020
SchalungsinnenflächenFormwork inner surfaces
2121
ZugkraftübertragungsflächeTraction transfer surface
2222
ZugkraftübertragungsflächeTraction transfer surface
2323
Hinterschneidungundercut
2424
Hinterschneidungundercut
2525
Außengewindeexternal thread
2626
Sprengringsnap ring

Claims (19)

  1. A formwork system comprising formwork elements (16, 17) which have mutually oppositely disposed formwork inner surfaces (19, 20) and can be connected to one another spaced apart from one another by means of formwork ties, wherein a formwork tie comprises a bolt element (1) and two locking elements (2, 3) which, in the two mutually remote end regions of the bolt element (1), can be coupled to it and are formed for the transmission of tensile forces from the formwork elements (16, 17) onto the bolt element (1), and which have coupling elements (9, 10) for the transmission of compressive forces from the formwork elements (16, 17) onto the bolt element (1)
    characterized in that
    the one locking element (2) is non-releasably connected to the bolt element (1) and the other locking element (3) is releasably connectable to the bolt element (1); and
    in that the bolt element (1) is rotatably journalled around its longitudinal axis in the locking element (2) fixedly connected to it.
  2. A formwork system in accordance with claim 1,
    characterized in that the mutually oppositely disposed formwork inner surfaces (19, 20) are each formed by a group of individual formwork elements (16, 17), with each group of formwork elements (16, 17) each having tie holes (18), in particular circular tie holes, for the reception of the bolt elements (1) of the formwork ties.
  3. A formwork system in accordance with one of the preceding claims,
    characterized in that the locking elements (2, 3) each have a tensile force transmission surface (21, 22) cooperating with the respective outer side of the formwork elements (16, 17).
  4. A formwork system in accordance with claim 2 and claim 3,
    characterized in that the region of the outer side of the formwork elements (16, 17) surrounding the tie holes (18) are made to cooperate with the tensile force transmission surface (21, 22).
  5. A formwork system in accordance with any one of the preceding claims,
    characterized in that undercuts (23, 24) are provided at the outer sides of the formwork elements (16, 17) and can be brought into active connection with compressive force transmission surfaces provided at the coupling elements (9, 10).
  6. A formwork system in accordance with claim 5,
    characterized in that the coupling elements (9, 10) are hook-shape in cross-section so that they can be hooked with the undercuts (23, 24) of the formwork elements (16, 17).
  7. A formwork system in accordance with any one of the preceding claims,
    characterized in that the locking elements (2, 3) each have a substantially parallelepiped shaped housing (4, 5) at which the coupling element (9, 10) is shaped.
  8. A formwork system in accordance with claim 7,
    characterized in that the parallelepiped-shaped housing (4, 5), including the coupling element (9, 10), is manufactured by means of an extrusion method or rolling or roller method, and is open at two oppositely disposed sides which extend perpendicular to the formwork surfaces (19, 20).
  9. A formwork system in accordance with any one of the preceding claims,
    characterized in that the bolt element (1) projects on the side remote from the tensile force transmission surface (21, 22) out of the locking element (2) fixedly connected to it and is provided in this projecting region with a contact surface (11) for a tool, in particular with a square or a hexagon.
  10. A formwork system in accordance with any one of the preceding claims,
    characterized in that the bolt element (1) is provided at its end region remote from the locking element (2) fixedly connected to it with a thread for screwing into the locking element (3) releasable from the bolt element (1).
  11. A formwork system in accordance with any one of the preceding claims,
    characterized in that the bolt element (1) is conical.
  12. A formwork system in accordance with claim 11,
    characterized in that the thread in accordance with claim 11 is provided at the thinner end region of the conically formed bolt element (1).
  13. A formwork system in accordance with any one of the preceding claims,
    characterized in that the locking element (3) releasable from the bolt element (1) is provided with a thread sleeve (12) into which the bolt element (1) can be screwed, with the external diameter of the thread sleeve (12) being dimensioned approximately like the internal diameter of the tie holes (18) formed in the formwork elements (16, 17).
  14. A formwork system in accordance with claim 13,
    characterized in that the length of the section of the thread sleeve (12) projecting out of the locking element (3) is dimensioned such that it extends at least over the total thickness of a formwork element (17) cooperating with the locking element (3).
  15. A formwork system in accordance with one of the claims 13 or 14,
    characterized in that the thread sleeve (12) is non-releasably connected to the locking element (3) associated with it.
  16. A formwork system in accordance with any one of the preceding claims,
    characterized in that a locking block (6, 7) is held in the housing (4, 5) in accordance with claim 7 and is releasably connectable or fixedly connected to the bolt element (1).
  17. A formwork system in accordance with claim 16,
    characterized in that the locking block (7) of the one locking element (3) is fixedly connected to the thread sleeve (2) in accordance with any one of the claims 14 to 16, whereas the bolt element (1) is rotatably journalled around its longitudinal axis in the other locking block (6).
  18. A formwork system in accordance with any one of the preceding claims,
    characterized in that the housing (4, 5) in accordance with claim 7 is provided with mutually aligned bolt holes (13, 14) at mutually oppositely disposed sides.
  19. A formwork system in accordance with claim 18, characterized in that
    the bolt holes (13, 14) each have the shape of a curved elongate hole in which the bolt element (1) and/or the thread sleeve (12) in accordance with any one of the claims 14 to 16 are displaceable.
EP04803647A 2004-01-05 2004-12-08 Formwork system Active EP1702120B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004001091A DE102004001091A1 (en) 2004-01-05 2004-01-05 formwork system
PCT/EP2004/013981 WO2005066434A1 (en) 2004-01-05 2004-12-08 Formwork system

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EP1702120A1 EP1702120A1 (en) 2006-09-20
EP1702120B1 true EP1702120B1 (en) 2011-05-25

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US (1) US8272620B2 (en)
EP (1) EP1702120B1 (en)
CA (1) CA2553961C (en)
DE (1) DE102004001091A1 (en)
ES (1) ES2367939T3 (en)
WO (1) WO2005066434A1 (en)

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DE102005022335A1 (en) * 2005-05-13 2006-11-16 Doka Industrie Gmbh Formwork anchors and method for anchoring formwork elements and method for releasing a scaling anchor
WO2012061768A2 (en) 2010-11-05 2012-05-10 Lightweight Labs, Llc Thermal processing and consolidation system and method
US20120144887A1 (en) * 2010-12-13 2012-06-14 Accelergy Corporation Integrated Coal To Liquids Process And System With Co2 Mitigation Using Algal Biomass
DE102012212607A1 (en) 2012-07-18 2014-02-06 Harsco Infrastructure Services Gmbh Fastenable anchor system of a wall formwork and method
KR101641335B1 (en) * 2015-04-30 2016-07-20 서보산업 주식회사 Wood gang form and method for constructing concrete building using this same
EP3112557B1 (en) * 2015-07-03 2017-10-04 MEVA Schalungs-Systeme GmbH Frame formwork element
EP3951116B1 (en) * 2020-08-04 2024-01-31 MEVA Schalungs-Systeme GmbH Formwork anchor

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US2992468A (en) * 1961-07-18 Wall form tie rod
US913538A (en) * 1906-12-22 1909-02-23 David Morgan Apparatus for use in building structures of concrete or other plastic material.
US913583A (en) * 1907-09-13 1909-02-23 Gen Electric Motorman's valve.
US1937109A (en) * 1933-06-30 1933-11-28 Samuel S Colt Retaining means for concrete pouring forms
US2584822A (en) * 1947-01-29 1952-02-05 Symons Clamp And Mfg Company Wall form spreader tie
US2620542A (en) * 1949-10-17 1952-12-09 Flexiform Construction Company Concrete form
US2583962A (en) * 1949-11-25 1952-01-29 Herman P Neptune Form clamp
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Also Published As

Publication number Publication date
EP1702120A1 (en) 2006-09-20
CA2553961C (en) 2012-01-24
DE102004001091A1 (en) 2005-08-04
US20080023622A1 (en) 2008-01-31
CA2553961A1 (en) 2005-07-21
US8272620B2 (en) 2012-09-25
ES2367939T3 (en) 2011-11-11
WO2005066434A1 (en) 2005-07-21

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