EP1106314A2 - Framework system for precast concrete members - Google Patents

Framework system for precast concrete members Download PDF

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Publication number
EP1106314A2
EP1106314A2 EP00123907A EP00123907A EP1106314A2 EP 1106314 A2 EP1106314 A2 EP 1106314A2 EP 00123907 A EP00123907 A EP 00123907A EP 00123907 A EP00123907 A EP 00123907A EP 1106314 A2 EP1106314 A2 EP 1106314A2
Authority
EP
European Patent Office
Prior art keywords
magnetic body
formwork system
formwork
gap
base plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00123907A
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German (de)
French (fr)
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EP1106314A3 (en
EP1106314B1 (en
Inventor
Reymann Andreas
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Reymann Technik GmbH
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Reymann Technik GmbH
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Publication date
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Publication of EP1106314A2 publication Critical patent/EP1106314A2/en
Publication of EP1106314A3 publication Critical patent/EP1106314A3/en
Application granted granted Critical
Publication of EP1106314B1 publication Critical patent/EP1106314B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B28B7/0017—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps for attaching mould walls on mould tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B28B7/002—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps using magnets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/033—Magnet

Definitions

  • the invention relates to a formwork system for precast concrete parts, with a Magnetic body that can be placed on a base plate with its underside and to be fixed at their respective positions over the formwork parts are, the formwork part a lifting bracket overlapping the magnetic body has, between and facing away from the base plate Cover side of the magnetic body is a gap in which the magnetic body over a lifting element is retractable.
  • Such a formwork system is, for example, from EP-0 842 339 known.
  • a formwork system is described in which the lifting element is formed by a lifting rod, which is interposed a spring is permanently supported on the lifting bar.
  • Such Springs have to be matched exactly to the respective application, which means some effort. You can also use those described there Springs when a magnetic body is not lowered properly cause automatic lifting.
  • the object of the invention is accordingly such a formwork system to develop so that on the one hand less effort in the design of the system is necessary and on the other hand the effect of the unwanted, automatic lifting no longer occurs. Overall, it should the operational security of the system can be improved.
  • holding elements are present, which are detachable when the magnetic body is drawn into the slot to be coupled to this.
  • the invention has the advantage that through the attachable holding elements the magnetic body in its retracted state securely in the lifting bracket is fixed without the need for spring elements, due to the detachability is ensured at the same time that the magnetic body must also be placed securely on the base plate.
  • the coupled from the holding element forces that can be applied to the raised magnetic body can be greater than the latter Dead weight, since it must be ensured that after lifting the Magnetic body and its coupling the formwork part without major Problems can be handled safely.
  • a possible coupling element is represented by magnets and adhesive surfaces, those in the area of the gap between the magnetic body and the lifting bracket are arranged.
  • the magnets can be in the magnetic body be integrated but in particular also formed by its top side become. So that the coupling force is limited, the adhesive surface has a smaller area expansion than the top side.
  • One way to limit the area of the adhesive surface is the end face of web plates arranged in the gap to use.
  • the overall dimensions of these are so small that there is also no danger that there is between the adhesive surface and the magnetic body possibly a foreign body, for example a stone or the like. puts, that would hinder the coupling.
  • coupling elements are under one Spring hooking back spring, these in particular on the lifting element attack.
  • This is, for example, a resilient one Locking element, which in a corresponding locking groove on the lifting element engages and then fixes it in the raised position.
  • corresponding spring elements directly on the magnet body to let, for example, it is possible to over the magnetic body e.g. projections located on the side walls of the lifting bracket to draw.
  • Such projections can also on one within the lifting bracket be provided around the magnetic body rotating guide, wherein such a guide is particularly to be used when the lifting handle is integrated in a formwork and the width of a magnetic body is smaller than the width of the formwork system.
  • the guide which is adapted to the magnetic body in its clear width is more freedom for designers to design the Formwork cleared.
  • Such guidance can advantageously also still have a scraper edge facing the magnetic body over the concrete or similar adhering to the magnetic body is to be wiped off so that the magnetic body is constantly cleaned and the formwork system therefore requires less maintenance becomes.
  • a slight play is provided between the magnetic body and the scraper edge, so that the magnetic body is not within the guide between Can wedge scraping edges and jam them.
  • the guide is designed so that it with the lifting bracket forms a substantially closed space, in into which the magnet is to be lifted.
  • This essentially closed Space is also advantageous in terms of less maintenance for the formwork system.
  • Formwork element 1 shows a formwork element 1 which is U-shaped in cross section and is open at the bottom. There is an adhesive surface in this formwork element 2 welded, which has a central bore 3. This Hole is aligned with another hole 4 on the top of the Formwork element 1.
  • the height of the magnetic body is 5 lower than the distance of the adhesive surface 2 to a base plate 6, which consists of steel and on which the magnetic body 5 with its underside 7 is liable.
  • the width of the magnetic body is 5 exactly on the distance between the legs 8 and 9 of the U-shaped Formwork element 1 matched, so that this in its position the base plate 6 is fixed when it is placed on the magnetic body 5 becomes.
  • a lifting bracket is formed between and that of the base plate 6
  • a gap 11 thus forms on the facing side 10 of the magnetic body, in which the magnetic body 5 is retractable.
  • a threaded rod 12 is provided as the lifting element can be screwed into the magnetic body 5 at one end and at her the other end corresponds to a sleeve 13.
  • This sleeve and the Threaded rod 12 are guided through the holes 3 and 4 mentioned above.
  • the sleeve 13 has one with a tool at its upper end graspable head 14, at the lower end of which is a threaded shaft 15 connects.
  • This threaded shaft is axially parallel Provide slot 16.
  • Formwork system The functioning of the previously described in its individual elements Formwork system is as follows: To the as described above on the To raise the base plate 6 seated magnetic body 5, with a appropriate tool the graspable head 14 of the sleeve 13 is raised, whereby on the threaded rod 12 of the magnetic body 5 of the Base plate 6 is withdrawn. When lifting, decrease with it Distance to the base plate, the magnetic acting on the magnetic body 5 Adhesive forces until it is in the area of attraction with its top side also reaches magnetic adhesive surface 2. This then join decreasing distance increasing attraction forces on what from perceived by an operator as overcoming a pressure point becomes. Ultimately, as can be seen in FIG.
  • the top side 10 comes of the magnetic body 5 then in contact with the adhesive surface 2 on which the magnetic body 5 then remains stuck due to between the magnetic body 5 and the adhesive surface 2 acting magnetic attraction forces. While the lifting movement is the magnetic body by the legs 8, 9 of the Formwork element 1 or by the interaction of the sleeve 13 with the holes 3 and 4 performed accordingly.
  • the magnetic body 5 Due to the fact that the cover side 10 is in magnetic adhesion the adhesive surface 2, the magnetic body 5 is then against the one acting on it Weight force fixed. Only by moving the sleeve 13 downwards, for example by applying pressure with a hammer or a foot is exerted on the head 14 below, the magnetic body 5 releases again from the adhesive surface 2 and falls down, where it is back on the base plate 6 puts on and the formwork element 1 again in its Fixed position.
  • the magnetic one is equally Adhesive force limited to a fraction of the between Magnetic body and base plate possible adhesive forces.
  • the magnet shown has a shell and Magnetic forces developed significantly lower towards the adhesive surface 2 than for Base plate 6. This makes lowering the magnetic body considerably easier possible as a lifting.
  • the lower edge 17 of the sleeve 13 can be formed in this way be that they are in the gap 11 between the top side 10 of the Magnetic body and underside of the adhesive surface 2 drawn magnetic body 5 with the edges of the central bore 3 due to the Slot 16 possible springing hooked. So a holding element is to be realized that couples to the magnet body when it is retracted and which has hooking spring elements. By a corresponding one Pressure on the head 14 can then the locking provided here the lower edge 17 can be detached from the edge of the bore 3.
  • Corresponding locking elements can in principle also directly on the Magnetic body 5 act in the raised state. This is not shown.
  • FIG. 1 An alternative embodiment is shown in FIG. To the one recognizes that instead of a large adhesive surface 2 as in the figure 1, only web plates 18 are provided, their end faces 19 then form the adhesive surfaces. These adhesive areas are considerably smaller than described above, the magnetic body in the example shown here has no shell and thus developed to the top and bottom Adhesive forces are essentially the same. Only about the very small size the end faces will have a lower adhesive force when lifted Condition of the magnetic body reached.
  • the guide 20 shown has a magnet body 5 facing all around Scraper edge 21 on. On this, the magnetic body 5 when Raised or lowered past, so that possibly on the side surfaces of the magnetic body 5 adhering concrete is stripped.
  • This game is so small that it ensures that it no dirt etc. can get into the area above the guide 20 can where in between this guide and the lifting bracket essentially closed space 22 that forms before the aggressive environmental influences is relatively well protected in concrete formwork.
  • Embodiments of the magnetic body 5 with an internal hexagon screw 23 is connected to the sleeve 13. This is done by an elastomer ring element 24 ensures that screwing in this hexagon socket screw in the sleeve 23 is only possible if the hexagon socket screw held by an Allen key becomes 13 when turning the sleeve. Otherwise, the hexagon socket screw turns 23 together with the sleeve 13, so that there is from the sleeve 13 and hexagon socket screw 23 formed lifting element for the magnet 5 is not adjusted in length. This is important because the formed on the sleeve 13 step 25 the formwork element firmly on the Base plate 6 is pulled when the magnetic body on the base plate 6 sits on.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

The shuttering system for concrete parts has a base plate placed on the underside (10) of a magnet body (5). The shuttering part (1) has a lifting bracket (9,2,8) gripping over the magnet body. A gap into which the magnet body is drawn by means of a lifting element (12,13) is positioned between the lifting bracket and the covering side (10) of the magnet body facing away from the base plate. Holder elements (2,10) are detachably connected to the magnet body when inserted into the gap.

Description

Die Erfindung betrifft ein Schalungssystem für Betonfertigteile, mit einem Magnetkörper, der mit seiner Unterseite auf einer Grundplatte aufsetzbar ist und über den Schalungsteile an ihrer jeweiligen Position zu fixieren sind, wobei das Schalungsteil einen den Magnetkörper übergreifenden Abhebebügel aufweist, zwischen dem und der der Grundplatte abgewandten Deckseite des Magnetkörpers ein Spalt ist, in den der Magnetkörper über ein Hubelement einziehbar ist.The invention relates to a formwork system for precast concrete parts, with a Magnetic body that can be placed on a base plate with its underside and to be fixed at their respective positions over the formwork parts are, the formwork part a lifting bracket overlapping the magnetic body has, between and facing away from the base plate Cover side of the magnetic body is a gap in which the magnetic body over a lifting element is retractable.

Ein derartiges Schalungssystem ist beispielsweise aus der EP-0 842 339 bekannt. Dort wird ein Schalungssystem beschrieben, bei dem das Hubelement durch eine Hubstange gebildet wird, die sich unter Zwischenschaltung einer Feder permanent an dem Abhebebügel abstützt. Derartige Federn müssen exakt auf den jeweiligen Einsatzfall abgestimmt werden, was einen gewissen Aufwand darstellt. Auch können die dort beschriebenen Federn bei nicht sachgemäßem Absenken eines Magnetkörpers dessen selbsttätiges Wiederanheben bewirken.Such a formwork system is, for example, from EP-0 842 339 known. There, a formwork system is described in which the lifting element is formed by a lifting rod, which is interposed a spring is permanently supported on the lifting bar. Such Springs have to be matched exactly to the respective application, which means some effort. You can also use those described there Springs when a magnetic body is not lowered properly cause automatic lifting.

Aufgabe der Erfindung ist es demgemäß, ein derartiges Schalungssystem so weiterzubilden, daß einerseits ein geringerer Aufwand bei der Auslegung des System notwendig ist und andererseits der Effekt des ungewollten, selbsttätigen Wiederanhebens nicht mehr auftritt. Insgesamt soll dabei die Betriebssicherheit des Systems verbessert werden.The object of the invention is accordingly such a formwork system to develop so that on the one hand less effort in the design of the system is necessary and on the other hand the effect of the unwanted, automatic lifting no longer occurs. Overall, it should the operational security of the system can be improved.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß Halteelemente vorhanden sind, die bei in den Schlitz eingezogenem Magnetkörper lösbar an diesen anzukoppeln sind.This object is achieved in that holding elements are present, which are detachable when the magnetic body is drawn into the slot to be coupled to this.

Die Erfindung hat den Vorteil, daß durch die ankoppelbaren Halteelemente der Magnetkörper in seinem eingezogenen Zustand sicher in dem Anhebebügel fixiert wird ohne daß hierfür Federelemente notwendig wären, aufgrund der Lösbarkeit aber gleichzeitig sichergestellt ist, daß die Magnetkörper auch wieder sicher auf der Grundplatte aufzusetzen sind.The invention has the advantage that through the attachable holding elements the magnetic body in its retracted state securely in the lifting bracket is fixed without the need for spring elements, due to the detachability is ensured at the same time that the magnetic body must also be placed securely on the base plate.

Es ist vorteilhaft, wenn das Ankoppeln der Halteelemente in deren angehobenen Zustand selbsttätig erfolgt, wobei insbesondere das Ankoppeln unter Überwindung eines Druckpunktes den Vorteil bietet, daß einer Bedienungsperson eine gefühlsmäßige Rückmeldung über eine erfolgte sichere Anhebung und Ankopplung vermittelt wird.It is advantageous if the coupling of the holding elements in their raised Condition takes place automatically, in particular the coupling while overcoming a pressure point offers the advantage that an operator an emotional feedback about a successful Raising and coupling is conveyed.

Grundsätzlich sollen dabei die von dem angekoppelten Halteelement auf den angehobenen Magnetkörper aufbringbaren Kräfte größer sein als dessen Eigengewicht, da so zu gewährleisten ist, daß nach Anheben des Magnetkörpers und dessen Ankopplung das Schalungsteil ohne größere Probleme sicher gehandhabt werden kann.Basically, the coupled from the holding element forces that can be applied to the raised magnetic body can be greater than the latter Dead weight, since it must be ensured that after lifting the Magnetic body and its coupling the formwork part without major Problems can be handled safely.

Ein mögliches Ankoppelelement wird durch Magnete und Haftflächen dargestellt, die im Bereich des Spaltes zwischen Magnetkörper und Anhebebügel angeordnet sind. Die Magnete können dabei in den Magnetkörper integriert sein aber insbesondere auch durch dessen Deckseite gebildet werden. Damit die Ankoppelkraft beschränkt ist, hat dann die Haftfläche eine geringere flächenmäßige Ausdehnung als die Deckseite.A possible coupling element is represented by magnets and adhesive surfaces, those in the area of the gap between the magnetic body and the lifting bracket are arranged. The magnets can be in the magnetic body be integrated but in particular also formed by its top side become. So that the coupling force is limited, the adhesive surface has a smaller area expansion than the top side.

Eine Möglichkeit, die flächenmäßige Ausdehnung der Haftfläche zu begrenzen ist, hierfür die Stirnfläche von im Spalt angeordneten Stegblechen zu verwenden. Diese sind in ihren Abmessungen insgesamt so gering, daß auch nicht die Gefahr besteht, daß sich zwischen Haftfläche und Magnetkörper eventuell ein Fremdkörper, beispielsweise ein Steinchen o.ä. setzt, der das Ankoppeln behindern würde.One way to limit the area of the adhesive surface is the end face of web plates arranged in the gap to use. The overall dimensions of these are so small that there is also no danger that there is between the adhesive surface and the magnetic body possibly a foreign body, for example a stone or the like. puts, that would hinder the coupling.

Bei anderen Arten von Ankoppelelementen handelt es sich um unter einen Rücksprung einhakende Federmittel, wobei diese insbesondere am Hubelement angreifen. Hierbei handelt es sich beispielsweise um ein federndes Rastelement, das in eine korrespondierende Rastnut am Hubelement eingreift und dieses dann in der angehobenen Stellung fixiert. Es ist aber auch denkbar, entsprechende Federelemente direkt am Magnetkörper angreifen zu lassen, wobei es zum Beispiel möglich ist, den Magnetkörper über z.B. an den Seitenwänden des Abhebebügels befindliche Vorsprünge zu ziehen.Other types of coupling elements are under one Spring hooking back spring, these in particular on the lifting element attack. This is, for example, a resilient one Locking element, which in a corresponding locking groove on the lifting element engages and then fixes it in the raised position. But it is also conceivable to attack corresponding spring elements directly on the magnet body to let, for example, it is possible to over the magnetic body e.g. projections located on the side walls of the lifting bracket to draw.

Derartige Vorsprünge können aber auch an einen innerhalb des Abhebebügels um den Magnetkörper umlaufenden Führung vorgesehen sein, wobei eine derartige Führung insbesondere anzuwenden ist, wenn der Abhebebügel in eine Schalung integriert ist und die Breite eines Magnetkörpers geringer ist als die Breite des Schalungssystems. In solchen Fällen wird durch die Führung, die in ihrer lichten Weite an den Magnetkörper angepaßt ist, einem Konstrukteur größerer Freiraum bei dem Entwurf der Schalung eingeräumt. Eine derartige Führung kann vorteilhafterweise auch noch eine dem Magnetkörper zugewandte Abstreifkante aufweisen über die am Magnetkörper anhaftender Beton o.ä. abzustreifen ist, so daß der Magnetkörper ständig gereinigt wird und das Schalungssystem somit wartungsärmer wird.Such projections can also on one within the lifting bracket be provided around the magnetic body rotating guide, wherein such a guide is particularly to be used when the lifting handle is integrated in a formwork and the width of a magnetic body is smaller than the width of the formwork system. In such cases by the guide, which is adapted to the magnetic body in its clear width is more freedom for designers to design the Formwork cleared. Such guidance can advantageously also still have a scraper edge facing the magnetic body over the concrete or similar adhering to the magnetic body is to be wiped off so that the magnetic body is constantly cleaned and the formwork system therefore requires less maintenance becomes.

Dabei ist zwischen Magnetkörper und Abstreifkante ein geringes Spiel vorgesehen, so daß der Magnetkörper sich nicht innerhalb der Führung zwischen Abstreifkanten verkanten und damit verklemmen kann.A slight play is provided between the magnetic body and the scraper edge, so that the magnetic body is not within the guide between Can wedge scraping edges and jam them.

Vorteilhafterweise ist die Führung insgesamt so ausgebildet, daß sie mit dem Anhebebügel einen im wesentlichen geschlossenen Raum bildet, in den hinein der Magnet anzuheben ist. Dieser im wesentlichen geschlossene Raum ist ebenfalls von Vorteil bzgl. geringerer Wartung für das Schalungssystem.Advantageously, the guide is designed so that it with the lifting bracket forms a substantially closed space, in into which the magnet is to be lifted. This essentially closed Space is also advantageous in terms of less maintenance for the formwork system.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen. Dabei zeigt

Figur 1
eine Explosionsdarstellung für ein Schalungssystem;
Figur 2
eine Stirnansicht eines Schalungssystems gemäß Figur 1 mit abgesenktem Magnetkörper;
Figur 3
eine Stirnansicht eines Schalungssystems gemäß Figur 1 mit angehobenem Magnetkörper;
Figur 4
eine geschnittene Seitenansicht eines Schalungssystems mit Führung mit angehobenem Magnetkörper;
Figur 5
eine geschnittene Seitenansicht eines Schalungssystems mit Führung mit abgesenktem Magnetkörper;
Figur 6
eine geschnittene Stirnansicht eines Schalungssystems gemäß Figur 4 mit angehobenem Magnetkörper und
Figur 7
eine geschnittene Stirnansicht eines Schalungssystems gemäß Figur 5 mit abgesenktem Magnetkörper.
Further advantages and features of the invention result from the following description of exemplary embodiments. It shows
Figure 1
an exploded view for a formwork system;
Figure 2
an end view of a formwork system according to Figure 1 with lowered magnetic body;
Figure 3
an end view of a formwork system according to Figure 1 with raised magnetic body;
Figure 4
a sectional side view of a formwork system with a guide with a raised magnetic body;
Figure 5
a sectional side view of a formwork system with a guide with lowered magnetic body;
Figure 6
a sectional front view of a formwork system according to Figure 4 with raised magnet body and
Figure 7
a sectional front view of a formwork system according to Figure 5 with the magnet body lowered.

In der Figur 1 erkennt man ein Schalungselement 1, das im Querschnitt Uförmig und nach unten offen ist. In dieses Schalungselement ist eine Haftfläche 2 eingeschweißt, die eine zentrische Bohrung 3 aufweist. Diese Bohrung fluchtet mit einer weiteren Bohrung 4 auf der Oberseite des Schalungselementes 1.1 shows a formwork element 1 which is U-shaped in cross section and is open at the bottom. There is an adhesive surface in this formwork element 2 welded, which has a central bore 3. This Hole is aligned with another hole 4 on the top of the Formwork element 1.

Unter der Haftfläche 2 ist ein im wesentlichen quaderförmiger Magnetkörper 5 einsetzbar. Wie sich aus der Figur 2 ergibt, ist die Höhe des Magnetkörpers 5 niedriger als der Abstand der Haftfläche 2 zu einer Grundplatte 6, die aus Stahl besteht und auf die der Magnetkörper 5 mit seiner Unterseite 7 haftend aufzusetzen ist. Dabei ist die Breite des Magnetkörpers 5 exakt auf den Abstand zwischen den Schenkeln 8 und 9 des U-förmigen Schalungselementes 1 abgestimmt, so daß dieses in seiner Position auf der Grundplatte 6 fixiert wird, wenn es auf den Magnetkörper 5 gestülpt wird.Under the adhesive surface 2 is an essentially cuboid magnetic body 5 usable. As can be seen from FIG. 2, the height of the magnetic body is 5 lower than the distance of the adhesive surface 2 to a base plate 6, which consists of steel and on which the magnetic body 5 with its underside 7 is liable. The width of the magnetic body is 5 exactly on the distance between the legs 8 and 9 of the U-shaped Formwork element 1 matched, so that this in its position the base plate 6 is fixed when it is placed on the magnetic body 5 becomes.

Durch die Haftfläche 2 und die von ihr nach unten zur Grundplatte 6 laufenden Abschnitte der seitlichen Schenkel 8, 9 des Schalungselementes 1 wird ein Abhebebügel gebildet, zwischen dem und der der Grundplatte 6 abgewandten Deckseite 10 des Magnetkörpers sich somit ein Spalt 11 bildet, in den der Magnetkörper 5 einziehbar ist. Zum Einziehen ist im hier vorliegenden Fall als Hubelement eine Gewindestange 12 vorgesehen, die an ihrem einen Ende in den Magnetkörper 5 einschraubbar ist und an ihrem anderen Ende mit einer Hülse 13 korrespondiert. Diese Hülse und die Gewindestange 12 sind durch die oben erwähnten Bohrungen 3 und 4 geführt. Die Hülse 13 weist an ihrem oberen Ende einen mit einem Werkzeug untergreifbaren Kopf 14 auf, an dessen unteres Ende sich ein Gewindeschaft 15 anschließt. Dieser Gewindeschaft ist mit einem achsparallelen Schlitz 16 versehen.Through the adhesive surface 2 and from it down to the base plate 6 Sections of the lateral legs 8, 9 of the formwork element 1 a lifting bracket is formed between and that of the base plate 6 A gap 11 thus forms on the facing side 10 of the magnetic body, in which the magnetic body 5 is retractable. To move in is here In the present case, a threaded rod 12 is provided as the lifting element can be screwed into the magnetic body 5 at one end and at her the other end corresponds to a sleeve 13. This sleeve and the Threaded rod 12 are guided through the holes 3 and 4 mentioned above. The sleeve 13 has one with a tool at its upper end graspable head 14, at the lower end of which is a threaded shaft 15 connects. This threaded shaft is axially parallel Provide slot 16.

Die Funktionsweise des bisher in seinen Einzelelementen beschriebenen Schalungssystems ist wie folgt: Um den wie oben beschrieben auf der Grundplatte 6 aufsitzenden Magnetkörper 5 anzuheben, wird mit einem entsprechenden Werkzeug der untergreifbare Kopf 14 der Hülse 13 angehoben, wodurch über die Gewindestange 12 der Magnetkörper 5 von der Grundplatte 6 abgezogen wird. Beim Anheben verringern sich mit dessen Abstand zur Grundplatte die auf den Magnetkörper 5 wirkenden magnetischen Haftkräfte, bis er mit seiner Deckseite in den Anziehungsbereich der ebenfalls magnetischen Haftfläche 2 gelangt. Hierbei treten dann sich bei geringer werdendem Abstand vergrößernde Anziehungskräfte auf, was von einer Bedienperson wie ein Überwinden eines Druckpunktes wahrgenommen wird. Letztlich kommt, wie in Figur 3 zu erkennen ist, die Deckseite 10 des Magnetkörpers 5 dann in Anlage mit der Haftfläche 2, an der der Magnetkörper 5 dann haften bleibt aufgrund der zwischen dem Magnetkörper 5 und der Haftfläche 2 wirkenden magnetischen Anziehungskräfte. Während der Hubbewegung wird der Magnetkörper durch die Schenkel 8, 9 des Schalungselementes 1 bzw. durch das Zusammenwirken der Hülse 13 mit den Bohrungen 3 und 4 entsprechend geführt.The functioning of the previously described in its individual elements Formwork system is as follows: To the as described above on the To raise the base plate 6 seated magnetic body 5, with a appropriate tool the graspable head 14 of the sleeve 13 is raised, whereby on the threaded rod 12 of the magnetic body 5 of the Base plate 6 is withdrawn. When lifting, decrease with it Distance to the base plate, the magnetic acting on the magnetic body 5 Adhesive forces until it is in the area of attraction with its top side also reaches magnetic adhesive surface 2. This then join decreasing distance increasing attraction forces on what from perceived by an operator as overcoming a pressure point becomes. Ultimately, as can be seen in FIG. 3, the top side 10 comes of the magnetic body 5 then in contact with the adhesive surface 2 on which the magnetic body 5 then remains stuck due to between the magnetic body 5 and the adhesive surface 2 acting magnetic attraction forces. While the lifting movement is the magnetic body by the legs 8, 9 of the Formwork element 1 or by the interaction of the sleeve 13 with the holes 3 and 4 performed accordingly.

Durch die in magnetischer Haftung befindliche Anlage der Deckseite 10 an die Haftfläche 2 wird der Magnetkörper 5 dann gegen die auf ihn wirkende Gewichtskraft fixiert. Erst durch ein Nachuntenbewegen der Hülse 13, beispielsweise indem mit einem Hammer oder mit einem Fuß ein Druck nach unten auf den Kopf 14 ausgeübt wird, löst sich der Magnetkörper 5 wieder von der Haftfläche 2 und fällt nach unten, wo er sich wieder auf die Grundplatte 6 aufsetzt und das Schalungselement 1 wieder entsprechend in seiner Position fixiert.Due to the fact that the cover side 10 is in magnetic adhesion the adhesive surface 2, the magnetic body 5 is then against the one acting on it Weight force fixed. Only by moving the sleeve 13 downwards, for example by applying pressure with a hammer or a foot is exerted on the head 14 below, the magnetic body 5 releases again from the adhesive surface 2 and falls down, where it is back on the base plate 6 puts on and the formwork element 1 again in its Fixed position.

Da die Größe der Haftfläche 2 beschränkt ist, ist gleichermaßen die magnetische Haftkraft beschränkt und zwar auf einen Bruchteil der zwischen Magnetkörper und Grundplatte möglichen Haftkräfte. Dabei ist insbesondere zu berücksichtigen, daß der dargestellte Magnet eine Hülle aufweist und zur Haftfläche 2 hin erheblich geringere Magnetkräfte entwickelt als zur Grundplatte 6. Damit ist ein Absenken des Magnetkörpers erheblich leichter möglich als ein Anheben.Since the size of the adhesive surface 2 is limited, the magnetic one is equally Adhesive force limited to a fraction of the between Magnetic body and base plate possible adhesive forces. Here is particular to take into account that the magnet shown has a shell and Magnetic forces developed significantly lower towards the adhesive surface 2 than for Base plate 6. This makes lowering the magnetic body considerably easier possible as a lifting.

Sollte bei einer alternativen Ausführungsform des Schalungselementes die oben beschriebene Haftfläche 2 beispielsweise aus Leichtmetall und somit nicht magnetisch sein, so kann die Unterkante 17 der Hülse 13 so ausgebildet sein, daß sie sich bei in den Spalt 11 zwischen Deckseite 10 des Magnetkörpers und Unterseite der Haftfläche 2 gezogenem Magnetkörper 5 mit den Rändern der zentrischen Bohrung 3 aufgrund eines durch den Schlitz 16 möglichen Auffederns verhakt. So ist ein Halteelement zu verwirklichen, das bei eingezogenem Magnetkörper sich an diesen ankoppelt und das sich einhakende Federelemente aufweist. Durch einen entsprechenden Druck auf den Kopf 14 kann dann die hier vorgesehene Verrastung der Unterkante 17 von dem Rand der Bohrung 3 wieder gelöst werden.Should be in an alternative embodiment of the formwork element Adhesive surface 2 described above, for example made of light metal and thus not be magnetic, the lower edge 17 of the sleeve 13 can be formed in this way be that they are in the gap 11 between the top side 10 of the Magnetic body and underside of the adhesive surface 2 drawn magnetic body 5 with the edges of the central bore 3 due to the Slot 16 possible springing hooked. So a holding element is to be realized that couples to the magnet body when it is retracted and which has hooking spring elements. By a corresponding one Pressure on the head 14 can then the locking provided here the lower edge 17 can be detached from the edge of the bore 3.

Es ist selbstverständlich auch möglich, als Halteelement im Bereich der Bohrung 3 einen radial auf die Hülse 13 wirkenden Raststift vorzusehen, wobei dann außen am Gewindeschaft 15 der Hülse 13 eine korrespondierende Rastnut etc. vorzusehen wäre.It is of course also possible as a holding element in the area of Bore 3 to provide a locking pin acting radially on the sleeve 13, then a corresponding one on the outside of the threaded shaft 15 of the sleeve 13 Rastnut etc. would be provided.

Entsprechende Rastelemente können grundsätzlich auch direkt auf den Magnetkörper 5 im angehobenen Zustand wirken. Dies ist nicht dargestellt.Corresponding locking elements can in principle also directly on the Magnetic body 5 act in the raised state. This is not shown.

In der Figur 4 ist noch eine alternative Ausführungsform dargestellt. Zum einen erkennt man, daß anstelle einer großen Haftfläche 2 wie in der Figur 1 dargestellt lediglich Stegbleche 18 vorgesehen sind, deren Stirnflächen 19 dann die Haftflächen bilden. Diese Haftflächen sind erheblich kleiner als oben beschrieben, wobei im hier dargestellten Beispiel der Magnetkörper keine Hülle aufweist und somit die zur Ober- wie zur Unterseite entwickelten Haftkräfte im wesentlichen gleich sind. Nur über die sehr geringe Gröβe der Stirnflächen wird somit eine geringere Haftkraft im angehobenen Zustand des Magnetkörpers erreicht.An alternative embodiment is shown in FIG. To the one recognizes that instead of a large adhesive surface 2 as in the figure 1, only web plates 18 are provided, their end faces 19 then form the adhesive surfaces. These adhesive areas are considerably smaller than described above, the magnetic body in the example shown here has no shell and thus developed to the top and bottom Adhesive forces are essentially the same. Only about the very small size the end faces will have a lower adhesive force when lifted Condition of the magnetic body reached.

In den Figuren 4-6 erkennt man dabei, daß innerhalb des Anhebebügels ein Blech als Führung 20 eingesetzt ist, daß den Magnetkörper 5 auf seinem gesamten Umfang umgibt. Durch diese Führung können die seitlichen Schenkel 8 bzw. 9 einen beliebigen Abstand zueinander haben, ohne daß dies einen Einfluß auf die Breite des Magnetkörpers 5 hätte. Dieser wird nämlich von der Führung 20 gehalten und nicht von den Innenseiten der genannten Schenkel.In Figures 4-6 you can see that within the lifting bracket a sheet is used as a guide 20 that the magnetic body 5 on his surrounds the entire circumference. This guide allows the side Legs 8 and 9 have any distance from each other without this would have an influence on the width of the magnetic body 5. This will namely held by the guide 20 and not from the inside of the called thighs.

Die dargestellte Führung 20 weist ringsum eine dem Magnetkörper 5 zugewandte Abstreifkante 21 auf. An dieser wird der Magnetkörper 5 beim Anheben bzw. Absenken vorbeigezogen, so daß eventuell an den Seitenflächen des Magnetkörpers 5 haftender Beton abgestreift wird.The guide 20 shown has a magnet body 5 facing all around Scraper edge 21 on. On this, the magnetic body 5 when Raised or lowered past, so that possibly on the side surfaces of the magnetic body 5 adhering concrete is stripped.

Dabei ist zwischen den Seitenwänden des Magnetkörpers 5 und der Abstreifkante 21 jeweils ein gewisses Spiel, das einerseits verhindert, daß sich der Magnetkörper 5 durch ein Verkanten in der Führung 20 verklemmen kann. Andererseits ist durch dieses sehr geringe Spiel auch ein leichtes seitliches Anschlagen der Abstreifkanten 21 an die Seitenflächen des Magnetkörpers 5 möglich, durch den anhaftender Beton abzuklopfen ist.There is between the side walls of the magnetic body 5 and the scraper edge 21 each a certain game, which on the one hand prevents the magnetic body 5 jam in the guide 20 by tilting can. On the other hand, due to this very small game, slight lateral striking of the scraper edges 21 on the side surfaces of the magnetic body 5 possible to knock through the adhering concrete is.

Dabei ist dieses Spiel aber so gering, daß sichergestellt wird, daß durch es hindurch kein Schmutz etc. in den Bereich oberhalb der Führung 20 geraten kann, wo sich zwischen dieser Führung und dem Anhebebügel ein im wesentlichen geschlossener Raum 22 bildet, der vor den aggressiven Umgebungseinflüssen bei der Betoneinschalung relativ gut geschützt ist. This game is so small that it ensures that it no dirt etc. can get into the area above the guide 20 can where in between this guide and the lifting bracket essentially closed space 22 that forms before the aggressive environmental influences is relatively well protected in concrete formwork.

Es sei hier noch erwähnt, daß bei den in den Figuren 4-6 dargestellten Ausführungsbeispielen der Magnetkörper 5 mit einer Innen-Sechskant-Schraube 23 mit der Hülse 13 verbunden ist. Dabei wird durch ein Elastomerringelement 24 sichergestellt, daß ein Einschrauben dieser Innen-Sechskant-Schraube in die Hülse 23 nur möglich ist, wenn die Innen-Sechskant-Schraube über einen Innen-Sechskant-Schlüssel festgehalten wird beim Verdrehen der Hülse 13. Ansonsten verdreht sich die Innen-Sechskant-Schraube 23 zusammen mit der Hülse 13, so daß sich also das aus Hülse 13 und Innen-Sechskant-Schraube 23 gebildete Hubelement für den Magneten 5 nicht in seiner Länge verstellt. Dies ist wichtig, da durch die an der Hülse 13 ausgebildeten Stufe 25 das Schalelement fest auf die Grundplatte 6 gezogen wird, wenn der Magnetkörper auf der Grundplatte 6 aufsitzt.It should also be mentioned here that in those shown in Figures 4-6 Embodiments of the magnetic body 5 with an internal hexagon screw 23 is connected to the sleeve 13. This is done by an elastomer ring element 24 ensures that screwing in this hexagon socket screw in the sleeve 23 is only possible if the hexagon socket screw held by an Allen key becomes 13 when turning the sleeve. Otherwise, the hexagon socket screw turns 23 together with the sleeve 13, so that there is from the sleeve 13 and hexagon socket screw 23 formed lifting element for the magnet 5 is not adjusted in length. This is important because the formed on the sleeve 13 step 25 the formwork element firmly on the Base plate 6 is pulled when the magnetic body on the base plate 6 sits on.

Claims (15)

Schalungssystem für Betonteile mit einem Magnetkörper (5), der mit seiner Unterseite (10) auf einer Grundplatte (6) aufsetzbar ist und über den Schalungsteile (1) an ihrer jeweiligen Position zu fixieren sind, wobei das Schalungsteil (1) einen den Magnetkörper übergreifenden Abhebebügel (9, 2, 8) aufweist, zwischen dem und der der Grundplatte (6) abgewandten Deckseite (10) des Magnetkörpers (5) ein Spalt (11) ist, in den der Magnetkörper (5) über ein Hubelement (12, 13) einziebar ist,
dadurch gekennzeichnet,
daß Halteelemente (2, 10) vorhanden sind, die bei in den Spalt (11) eingezogenem Magnetkörpers lösbar an diesem anzukoppeln sind.Formwork system for concrete parts with a magnetic body (5), which can be placed with its underside (10) on a base plate (6) and fixed at its respective position via the formwork parts (1), the formwork part (1) overlapping the magnetic body Lifting bracket (9, 2, 8) has a gap (11) between which and the cover side (10) of the magnetic body (5) facing away from the base plate (6), into which the magnetic body (5) is lifted (12, 13) ) is retractable,
characterized,
that holding elements (2, 10) are present which can be detachably coupled to the magnetic body when it is drawn into the gap (11). Schalungssystem gemäß Anspruch 1,
dadurch gekennzeichnet,
daß das Ankoppeln der Halteelemente selbsttätig erfolgt.Formwork system according to claim 1,
characterized,
that the coupling of the holding elements takes place automatically. Schalungssystem gemäß Anspruch 1,
daß das Ankoppeln unter Überwindung eines Druckpunktes erfolgt.Formwork system according to claim 1,
that the coupling takes place while overcoming a pressure point. Schalungssystem gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die vom angekoppelten Halteelement (10, 2) aufbringbaren Kräfte gröβer sind als das Eigengewicht des Magnetkörpers (5). Formwork system according to claim 1,
characterized,
that the forces which can be applied by the coupled holding element (10, 2) are greater than the dead weight of the magnetic body (5). Schalungssystem gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die Ankoppelelemente Magnete (5) und Haftflächen (2) im Bereich des Spaltes (11) aufweist.Formwork system according to claim 1,
characterized,
that the coupling elements have magnets (5) and adhesive surfaces (2) in the region of the gap (11). Schalungssystem gemäß Anspruch 5,
dadurch gekennzeichnet,
daß die Magnete in den Magnetkörper (5) integriert sind und insbesondere durch dessen Deckseite (10) gebildet sind.Formwork system according to claim 5,
characterized,
that the magnets are integrated in the magnetic body (5) and in particular are formed by its cover side (10). Schalungssystem gemäß Anspruch 6,
dadurch gekennzeichnet,
daß die Haftfläche (2) eine geringere flächenmäßige Ausdehnung aufweist als die Deckseite (10) des Magnetkörpers (5).Formwork system according to claim 6,
characterized,
that the adhesive surface (2) has a smaller area expansion than the top side (10) of the magnetic body (5). Schalungssystem gemäß Anspruch 7,
dadurch gekennzeichnet,
daß die Haftfläche (2) die Stirnfläche (19) von im Spalt angeordneten Stegblechen (18) ist.Formwork system according to claim 7,
characterized,
that the adhesive surface (2) is the end face (19) of web plates (18) arranged in the gap. Schalungssystem gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die Halteelemente einhakende Federelemente aufweist.Formwork system according to claim 1,
characterized,
that the holding elements have hooking spring elements. Schalungssystem gemäß Anspruch 9,
dadurch gekennzeichnet,
daß die Federelemente am Hubelement (13) angreifen.Formwork system according to claim 9,
characterized,
that the spring elements engage the lifting element (13). Schalungssystem gemäß Anspruch 9,
dadurch gekennzeichnet,
daß die Federelemente am Magnetkörper (5) angreifen. Formwork system according to claim 9,
characterized,
that the spring elements engage the magnetic body (5). Schalungssystem gemäß Anspruch 1,
dadurch gekennzeichnet,
daß im Anhebebügel eine um den Magnetkörper (5) umlaufende Führung (20) vorgesehen ist.Formwork system according to claim 1,
characterized,
that a guide (20) running around the magnetic body (5) is provided in the lifting bracket. Schalungssystem gemäß Anspruch 12,
dadurch gekennzeichnet,
daß die Führung (20) eine dem Magnetkörper zugewandte Abstreifkante (21) aufweist.Formwork system according to claim 12,
characterized,
that the guide (20) has a stripping edge (21) facing the magnetic body. Schalungssystem gemäß Anspruch 13,
dadurch gekennzeichnet,
daß zwischen Magnetkörper (5) und Abstreifkante (21) Spiel ist.Formwork system according to claim 13,
characterized,
that between the magnetic body (5) and the scraper edge (21) there is play. Schalungssystem gemäß Anspruch 12,
dadurch gekennzeichnet,
daß zwischen Führung (20) und Anhebebügel ein im wesentlichen geschlossener Raum (22) gebildet ist.Formwork system according to claim 12,
characterized,
that a substantially closed space (22) is formed between the guide (20) and lifting bracket.
EP00123907A 1999-12-01 2000-11-03 Framework system for precast concrete members Expired - Lifetime EP1106314B1 (en)

Applications Claiming Priority (2)

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DE29920866U DE29920866U1 (en) 1999-12-01 1999-12-01 Formwork system for precast concrete parts
DE29920866U 1999-12-01

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EP (1) EP1106314B1 (en)
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DE102011003667A1 (en) 2011-02-04 2012-08-09 BETA Maschinenbau GmbH & Co. KG Magnet unit for use as positioning aid to position battery housings on formwork desk to produce concrete parts, has holding element pre-tensioned toward lifting device or sleeve when holding element is arranged outside molded-form
DE102011003671A1 (en) 2011-02-04 2012-08-09 BETA Maschinenbau GmbH & Co. KG Formwork support for formwork arrangement for supporting form work element, has two longitudinal struts, particularly three longitudinal struts that are arranged parallel to each other and are connected together by two intermediate pieces
DE102011003667B4 (en) * 2011-02-04 2012-11-15 BETA Maschinenbau GmbH & Co. KG magnet unit
DE102018212422A1 (en) * 2018-07-25 2020-01-30 B.T. Innovation Gmbh Magnetic formwork device

Also Published As

Publication number Publication date
EP1106314A3 (en) 2003-01-15
DE29920866U1 (en) 2000-01-27
ATE336347T1 (en) 2006-09-15
US6434894B2 (en) 2002-08-20
US20010004819A1 (en) 2001-06-28
EP1106314B1 (en) 2006-08-16
DE50013330D1 (en) 2006-09-28

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