EP1899552B1 - Ceiling formwork system - Google Patents

Abstract

The invention relates to a ceiling formwork system comprising several formwork elements, the bottom face of which is provided with supports that can be coupled to heads of vertical props. At least some areas of the cross section of said supports are embodied in a C-shaped manner, with two legs extending from a basic section. One of the legs is designed as a supporting surface that is to rest on a head of a vertical prop while the head of a vertical prop is provided with fixing elements which engage into one respective recess of a supporting surface. Said recess is configured so as to selectively couple the support to the vertical prop in two directions that are offset relative to each other by 90° at the end of the supporting surface which faces away from the basic section.

Description

The invention relates to a slab formwork system with a plurality of formwork elements and vertical supports, wherein the formwork elements, on their underside with heads of vertical supports coupled carrier whose cross-section is at least partially C-shaped with two extending away from a base portion legs, wherein one of the legs as Support surface is designed to rest on a head of a vertical support.

Such a slab formwork system is from the document EP 0 130 425 A1 known. This system consists of formwork panels, on the underside of which C-shaped supports are arranged, which can be hooked in a substantially vertical orientation of the formwork panels with a head of a vertical support, after which the formwork panels can be pivoted while maintaining the hook connection in a horizontal position. In order to avoid a displacement of the carrier in the longitudinal direction relative to the head of the vertical support, the base portion of the C-shaped support is provided with an opening into which a fixing element can engage, which is fixedly connected to the head of the vertical support.

A disadvantage of the known slab formwork system is the fact that in a coupling of two, three or four formwork panels with a vertical support all formwork panels must be the same orientation, so that it is not possible to arrange on a vertical support several rectangular formwork panels that are perpendicular to each other extend. This lack of opportunity causes only a limited disadvantage Adaptability of the slab formwork system to the given spatial conditions.

An object of the invention is to provide a ceiling formwork system of the type described above in such a way that formwork elements, in particular grate elements or formwork panels are coupled in different orientations with the head of a vertical support.

This object is solved by the features of claim 1 and in particular by the fact that the head of a vertical support in each case a recess of a support surface engaging fixing elements, wherein the recess for selectively coupling the carrier with the vertical support in two mutually offset by 90 ° directions on the the base portion remote from the end of the support surface is provided.

Due to the fact that the recess for fixing the carrier in its longitudinal direction relative to the vertical support according to the invention is not provided in the base portion, but rather in the support surface and there in the base portion remote area, it is possible to arrange a plurality of fixing such on the head of a vertical support in that a carrier can be fastened in two directions offset by 90 ° from one another at the head of the vertical support. As a result, the variability of a slab formwork system according to the invention over known slab formwork systems is increased in such a way that the slab formwork system can be optimally adapted to individual circumstances by the given choice in the attachment of formwork elements on a head of a vertical support.

While according to the invention one leg of the carrier serves as a support surface for cooperation with a vertical support, the other can Leg of the wearer may be formed as a contact surface for a plurality of longitudinal members of a grate element, on which then ultimately a formwork skin can be applied. Alternatively, however, the other leg can also be formed as a contact surface for a formwork panel, in which case, in contrast to the use of a grate element, there are no further elements between the support according to the invention and the formwork panel.

The carriers used according to the invention are preferably designed as open profile elements. Alternatively, however, closed profiles can be used, in which then the described recess is also provided in the region of the respective support surface, which is brought into contact with the vertical supports.

It is preferred if the support surface of the carrier in each of the two mutually remote end portions of the carrier in each case two, three or more recesses. This plurality of recesses makes it possible to couple a carrier at different, distributed over its length positions with a vertical support, so that again different installation situations can be taken into account.
It is advantageous if at least two recesses of the support surface and two fixing elements of the head of a vertical support are spaced apart from each other such that a simultaneous engagement of each of the two fixing elements in one of the two recesses is possible. In this case, the carrier can then be mounted on a vertical support via said concurrent engagement either flush with its head, or it can be mounted such that the support projects beyond the head of the vertical support on both sides. Providing a corresponding number of pairs of recesses For example, the carrier can project beyond the head of the vertical support via different lengths adapted to the respective conditions. These different lengths are easily adjustable by selecting a suitable pair of recesses.

Even with the provision of at least two recesses in the support surface in one or both end regions of the support, it is possible to couple these only via one of the two recesses with a fixing element of the head of a vertical support. This coupling variant is chosen in particular when two longitudinally aligned carriers are to be fastened to a common head of a vertical support.

It is particularly preferred if the support surface on its end portion remote from the base portion has an upwardly extending or angled, preferably parallel to the base portion extending tab, which is provided with a particular V-shaped recess which is provided with the recess provided in the support surface is aligned, that recess and recess merge into each other. In this case, the mounting of a formwork element on a vertical support designed particularly simple, since the correct positioning between the recess provided in the support surface and the fixing of the respective head is facilitated by said recess. Specifically, a carrier provided with said tab can be positioned above a head of a vertical support such that the recess in the tab is located directly above the respective fixing element of the head, whereupon the support can be lowered onto the head, where the Fixing element of the head in the recess of the tab "threaded" is. By a subsequent pivoting of the formwork element to one to the longitudinal axis of the carrier parallel pivot axis is then achieved that the fixing element is inevitably introduced via the recess provided in the tab into the corresponding recess of the support surface. The leading of the fixing to the recess of the support surface is favored in particular by the V-shape of the recess in the tab, wherein the width of the V-shaped recess increases with increasing distance to the corresponding recess in the support surface.

It is also advantageous if the tab in each of the two mutually remote end portions of a carrier has two, three or more recesses of the type mentioned, which are each aligned with corresponding recesses in the support surface. In this case, a corresponding recess in the tab can then be provided for each recess in the support surface, so that the insertion of the fixing element is facilitated in any recesses of the support surface.

Preferably, the underside of the support surface extends in its mounted position, starting from the base portion obliquely upwards, so that in particular the angle between the underside of the support surface and the base portion is smaller than 90 ° and preferably between 70 ° and 80 °. By this measure it is achieved that the disassembly of a formwork element according to the invention can be carried out easily, since a pivoting of a formwork element about an axis parallel to the support axis is not hindered by an upward movement of surface portions of the formwork element. This will be particularly appreciated when considering the following Figures 7 ac clear.

The vertical supports may each be provided with a support head, which in addition to a perpendicular to the longitudinal extent of the respective vertical support extending support plane thereof angled fixing tabs for engagement in at least one recess of the support surface of a carrier. The use of angled Fixierlaschen is advantageous in that for the support head a plate-shaped element in the raw state can be used, are bent from the certain areas, preferably corner areas as fixing lugs so that it is not necessary to attach separate fixing elements on the support head. Alternatively, it is also possible to form the support head as a cast or forged part or to manufacture plastic.

For example, four fixing lugs can be provided per support head, which extend in particular perpendicular to the support plane of the support head. Adjacent Fixierlaschen a support head can be perpendicular to each other.

It is particularly preferred if the support plane has a substantially square shape, wherein the fixing tabs each extend parallel to diagonals of the support plane. In this case, corner areas of the support plane, which is square in its basic form, can actually be bent upwards at right angles, so as to form the fixing lugs according to the invention.

It is particularly advantageous if the support head has abutment areas for the rear side of the base section of a carrier facing away from the legs, wherein the abutment surfaces of the abutment areas extend in particular perpendicularly to the support plane. In a coupled with such a support head carrier are after completion of an assembly process areas of the fixing elements or fixing straps in the thereto complementarily formed recesses of the support surface, wherein at the same time the back of the base portion is supported on said abutment areas or comes to lie in close proximity to these abutment areas. Thus, these stop areas prevent the fixing elements from being able to move out of the recesses mentioned, so that a reliable and defined fixing of a carrier to a support head is ensured here.

Preferably, a total of eight stop regions are provided, whose stop surfaces extend in particular at an angle of 45 ° to the fixing lugs. These eight stop regions make it possible for one carrier each to be fastened to the support head at four different positions, two orientations of the carrier in a horizontal plane offset by 90 ° being possible at each of these four positions. Overall, therefore, four different carriers can be arranged on a support head at the same time, the orientation of each individual carrier can be selected individually.

The abovementioned stop areas of the support head can be formed by separate stop elements, which are subsequently coupled to the support head. However, it is preferred if four abutment regions are formed by a U-shaped, extending from the support plane upwardly extending portion of the support head or the plate-shaped member from which the support head is made. Each two further stop areas can be formed by one stop tab each bent out of the support plane upwards. In this way, the use of separate elements can be completely avoided, and it is also possible to manufacture the entire support head from a single plate-shaped element.

The support head used according to the invention can be connected either detachably or fixedly to its associated vertical support.

It is particularly advantageous if the support head can be coupled to a preferably substantially square head plate of a commercially available vertical support, wherein the sizes of head plate and support head can be approximately equal in plan view to each other. In this case, the support head can be pushed onto the head plate in a direction running parallel to the head plate of the vertical support. The underside of a support plane of the support head comes to lie in the mounted position preferably directly on the top plate of the vertical support, so that no vertical extension of the support over its top plate extending elements are needed. The distance between the top of the top plate of the vertical support and the support plane of the support head thus corresponds in this advantageous embodiment substantially the thickness of the material used for the support head.

In Providence of a detachable connection of the support head - as already mentioned - pushed in a direction parallel to its support plane direction on a vertical support and fixed there in particular by means of a spring element held in the support head. This spring element then represents the only element of the support head, which can not be made of a plate-shaped base member. In a plastic training, the spring element can also be formed integrally with the support head.

According to the invention, it is preferred if all support heads, vertical supports, and / or end regions of the carriers used are designed to be identical to one another. This then allows any combination variants and avoids the erroneous handling of individual components of the slab formwork system according to the invention.

The installation of a slab formwork system according to the invention is particularly convenient to perform for a fitter when the vertical support and the support of a formwork element are hooked together in such a position in which include the formwork element and the vertical support an angle less than 90 °. In this case, it is preferable if, in the production of this hook connection, the formwork element runs essentially parallel to the respective vertical support or the respective vertical supports.
After hooking can then be carried out while maintaining the hook connection, a pivoting of the formwork element in such a position in which the formwork element and the vertical supports form an angle of approximately 90 °, so that the formwork element extends in a horizontal plane in which it ultimately for the production of a concrete pavement can be used.

The formwork elements used according to the invention may, for example, in each case consist of mutually parallel spaced longitudinal members which are firmly connected to at least one perpendicular thereto cross member, the tops of the side members form a support surface for a formwork, the top of the or the cross member) on the underside of Side member abuts, and the bottom of the cross member (s) forms a support surface of the type described. In this case, therefore form the shuttering elements according to the invention grate elements, which are first mounted on the vertical supports, whereupon then the formwork skin or the formwork panels can be applied to the grate elements.

Alternatively, however, it is also possible to form the formwork elements in such a way that a formwork skin is applied directly to the above-described supports, in particular on their upper sides. In this case, then already complete, formwork and carrier comprehensive formwork panels are mounted on the vertical supports in accordance with the invention.

The formwork elements preferably have only one or two, in particular straight carrier or cross member, wherein in the provision of two carriers or cross members, these run parallel to each other. It is therefore not necessary according to the invention to provide the formwork elements on their underside with a circumferential profile. Furthermore, no carriers are required, which extend parallel to the mentioned side members.

Further preferred embodiments of the invention are explained in the subclaims.

Fig. 1

eine dreidimensionale Ansicht eines Endabschnitts eines im Rahmen der Erfindung zum Einsatz gelangenden, mit dem Kopf einer Vertikalstütze koppelbaren Trägers,

Fig. 2

eine dreidimensionale Ansicht eines mit einem Träger ge- mäß Fig. 1 koppelbaren Kopfes einer Vertikalstütze von schräg oben,

Fig. 3

eine Ansicht gemäß Fig. 2 von schräg unten,

Fig. 4

einen Schnitt durch einen Kopf einer Vertikalstütze gemäß den Fig. 2 und 3,

Fig. 5

eine dreidimensionale Ansicht eines mit einem Kopf einer Vertikalstütze gemäß den Fig. 2 bis 4 gekoppelten Trägers gemäß Fig. 1 in einer ersten Befestigungsposition von schräg oben,

Fig. 6

eine Ansicht gemäß Fig. 5 von schräg unten bei Realisie- rung einer zweiten Befestigungsposition,

Fig. 7a - c

jeweils eine Seitenansicht verschiedener Verfahrensschritte beim Koppeln eines Trägers gemäß Fig. 1 mit einem Kopf gemäß den Fig. 2 bis 4,

Fig. 8a-c

Ansichten gemäß Fig. 7a - c mit einem um 90° gedrehten Kopf einer Vertikalstütze,

Fig. 9

eine dreidimensionale Ansicht eines mit vier Trägern gekop- pelten Vertikalstützenkopfes von schräg unten, wobei zwei Träger senkrecht zu zwei weiteren Trägern ausgerichtet sind, und

Fig. 10

eine Ansicht gemäß Fig. 9, bei der alle vier Träger parallel zueinander verlaufen.

The invention will now be described by way of example with reference to the drawings; in these show:

Fig. 1

3 shows a three-dimensional view of an end section of a carrier used in the context of the invention, which can be coupled to the head of a vertical support;

Fig. 2

a three-dimensional view of one with a carrier according to Fig. 1 coupling head of a vertical support from diagonally above,

Fig. 3

a view according to Fig. 2 from diagonally below,

Fig. 4

a section through a head of a vertical support according to the Fig. 2 and 3 .

Fig. 5

a three-dimensional view of one with a head of a vertical support according to the Fig. 2 to 4 coupled carrier according to Fig. 1 in a first fastening position obliquely from above,

Fig. 6

a view according to Fig. 5 obliquely from below when realizing a second fastening position,

Fig. 7a - c

in each case a side view of different method steps when coupling a carrier according to Fig. 1 with a head according to the Fig. 2 to 4 .

Fig. 8a-c

Views according to Fig. 7a - c with a 90 ° turned head of a vertical support,

Fig. 9

a three-dimensional view of a four-carrier coupled vertical support head obliquely from below, wherein two carriers are aligned perpendicular to two other carriers, and

Fig. 10

a view according to Fig. 9 in which all four beams are parallel to each other.

The in Fig. 1 shown carrier 2 is formed as an open elongated profile element, which has a C-shaped portion with two legs extending away from a base portion 4 legs, wherein the lower leg as a support surface 6 for support on a head of a Vertical support is designed. The upper leg forms a support surface 8 for the undersides of longitudinal members, which extend for example perpendicular to the carrier 2, which then forms a cross member in this case, so that said side members together with the carrier 2 and optionally further cross members form a grate element, on which a formwork skin can be applied. Alternatively, the support surface 8 can also serve directly as a support surface for a formlining.

In the illustrated carrier 2 is - seen in cross section - the base portion 4 longer than the support surface 8, which in turn is designed to be longer than the support surface 6. The length of the support surface 8 is approximately twice the length of the support surface 6, whereas the length of the base portion 4 is approximately twice the length of the support surface 8.

The underside of the support surface 6 is not parallel to the support surface 8, but rather obliquely upwards in the direction of the support surface 8. In this way it follows that the thickness of the support surface 6 decreases with increasing distance from the base portion 4, since the support surface. 8 facing top of the support surface 6 in contrast to its underside parallel to the support surface 8 extends. The advantages of this training will be described below in connection with Fig. 7 ac still explained.

At the end remote from the base portion 4 of the support surface 6, an upwardly angled tab 10 is formed, which extends parallel to the base portion 4 in the direction of the support surface 8. As an alternative to the aforementioned bend, a round transition could also be formed between the support surface 6 and the tab 10, so that, for example, the shape of a quadrant is set substantially in cross section between the support surface 6 and the tab 10. The tab 10 is in the illustrated embodiment provided with four spaced apart in the longitudinal direction of the carrier 2 V-shaped recesses 12, 14, 16, 18, wherein the width of these recesses 12 to 18 is reduced in each case with increasing distance from the support surface. The recesses 12 to 18 extend over the entire height of the tab 10 and go in its lower end in recesses 20, 22, 24, 26 of the support surface 6 via. The width of the recesses 20 to 26 corresponds approximately to the width of the V-shaped recesses 12 to 18 in their recesses 20 to 26 facing end region. The recesses 20 to 26 extend into the support surface 6 by less than half the length of the support surface 6.
By virtue of the arrangement of the recesses 12 to 18 and the recesses 20 to 26, the recesses 12 to 18 can form a "threading aid" for the introduction of fixing elements into the recesses 20 to 26 due to their V-shaped configuration, this threading aid being particularly effective is, when the carrier 2 after the introduction to a fixing by 90 ° up in his in Fig. 1 shown position is pivoted. This pivotal movement is facilitated by the explained oblique orientation of the underside of the support surface 6.

In Fig. 1 only one end region of the carrier 2 is shown. The other, not shown end portion of the carrier 2 is formed analogously to the illustrated end portion, so that the carrier 2 in each of its two end portions each have four recesses 12 to 18 and four recesses 20 to 26. The recesses 12 and 14 are provided only slightly spaced from each other in the outermost end region of the carrier 2, whereas the distance between the recesses 14 and 16 and the distance between the recesses 16 and 18 sized larger is and corresponds to the distance from adjacent fixing elements of a head of a vertical support.

The Fig. 2 and 3 each show in three-dimensional view a head 28 which can be coupled to a vertical support (not shown). The head 28 is made of an originally substantially rectangular steel plate which is bent such that in its central region a U-shaped bent portion 30 is formed, which extends over the entire width of the head 28 upwards. The U-shaped section 30 divides the plane formed as a support plane 32 base of the head 28 into two halves of equal size. In the case of supports 2 mounted on the head 28, said support plane 32 absorbs the vertical forces to be transmitted by the supports 2 to a vertical support, since the support surface 6 of a support 2 is ultimately supported on the support plane 32 of the head 28, which will be explained below.

Perpendicular to the U-shaped section 30, the support plane 32 at its two opposite end portions each have a U-shaped downwardly bent coupling tab 34, so that between the mutually facing coupling tabs 34 extending parallel to the support plane 32 receiving plane for a (not shown) Head plate is defined a vertical support. Such a top plate can be inserted in the longitudinal direction of the U-shaped portion 30 in the coupling tabs 34 until it abuts two stop members 36 which are integrally formed with the U-shaped portion and extending from this down into said receiving plane for the Head plate of the vertical support extend.

In the cavity surrounded by the U-shaped portion 30, a spring element 38 is fixed, which consists of the Fig. 2 and 3 and particularly also from Fig. 4 is apparent. The end portions 40 of the spring element 38 are in the region of an opening 42 of the U-shaped portion 30 and bent in the region of an end face of the U-shaped portion 30 such that the spring element 38 is held captive on the head 28. In this case, the spring element 38 is shaped in such a way that a middle section thereof extends downwards at least into the receiving plane provided for the head plate of a vertical support, between the coupling lugs 34, so that said section of the spring element 38 enters a frontal cavity of a vertical support or a head plate of a vertical support can snap, whereby the head 28 can be fixed in a defined position to a vertical support. In such a position, the two stop members 36 abut an edge of the head plate of a vertical support. When removing the head 28 from a vertical support, the spring element 38 is deformed by the withdrawal force, so that the spring element 38 on the one hand ensures correct positioning of the head 28 relative to the vertical support, but on the other hand also allows a subsequent release of the head 28 of a vertical support.

The four corner regions of the support plane 32 are each bent upwards perpendicularly to the support plane 32, so that they form a total of four fixing straps 44, 46, 48, 50 which each extend at an angle of 45 ° to the longitudinal direction of the U-shaped section 30. The width of the fixing lugs 44 to 50 is slightly more than twice their height, wherein the two of the support plane 32 respectively facing away from the corner regions of the fixing lugs 44 to 50 are chamfered. Each of the two vertical edges 52, 54; 56, 58; 60, 62; 64, 66 of the fixing lugs 44 to 50 in each case forms a fixing element, which in the context of the invention is suitable for engagement in a recess 20 to 26 of a support 2. In a coupling of a carrier 2 via one of the fixing tabs 44 to 50 is in each case only one of the two fixing elements 52 to 66 of a fixing tab 44 to 50 is effective. The provision of two fixing elements 52 to 66 per fixing lug 44 to 50 makes it possible to couple a carrier 2 optionally in two mutually offset by 90 °, parallel to the support plane 32 extending directions with a fixing tab 44 to 50.

From each of the two halves of the support plane 32 is in each case a stop tab 68, 70 bent out upward, each of the two end, perpendicular to the support plane 32 extending edges of the stop tabs 68, 70 each have a stop surface 72, 74, 76, 78 for the back of the base portion 4 of a carrier 2 form.

Four further stop surfaces 80, 82, 84, 86 are formed by perpendicular to the support plane 32 extending portions of the U-shaped portion 30. These stop surfaces 80 to 86 are also each suitable to cooperate with the back of the base portion 4 of a carrier 2.

• 52, 80; 54, 72; 56, 74; 58, 82; 60, 84; 62, 76; 64, 78; 66, 86.

Specifically, a carrier 2 between following pairs of mutually opposite fixing elements 52 to 66 and stop surfaces 72 to 86 are fixed:

• 52, 80; 54, 72; 56, 74; 58, 82; 60, 84; 62, 76; 64, 78; 66, 86.

The Fig. 5 and 6 show a head plate 88 of a vertical support 90 which is inserted into coupling lugs 34 of a head 28 until an edge of the head plate 88 abuts against the stop elements 36 of the head 28. With the head 28 are each a carrier 2 according to Fig. 1 coupled to the support surface 8 longitudinal beams 92 are fixed, which extend perpendicular to the support According to Fig. 6 is attached to the top of the longitudinal beams 92 a formwork skin 94, which in turn is coupled to a Stirnabschalung 96.

According to Fig. 5 the carrier 2 is coupled to the head 28 in such a way that the fixing element 52 extends into the recess 14 and the recess 22. At the same time, the fixing element 58 extends into the recess 16 and the recess 24. The base portion 4 of the carrier 2 is supported on its rear side on the stop surfaces 80 and 82, so that ultimately these stop surfaces 80, 82 together with the fixing elements 52, 58 effectively prevent the carrier 2 can move perpendicular to its base portion 4. At the same time, the engagement between the fixing elements 52, 58 and the recesses 22, 24 ensures that no movement in the longitudinal direction of the carrier 2 relative to the head 28 can take place.

Alternatively, the carrier 2 could also be coupled in a staggered position in the longitudinal direction of the carrier 2 with the head 28, in which the fixing elements 52, 58 would engage in the recesses 16, 18 or in the corresponding recesses 24, 26. Such a coupling is in Fig. 6 shown, from which it is readily apparent that the recesses 20, 22 of the carrier 2 remain unused here and the carrier 2 further protrudes beyond the head 28 as in the position according to Fig. 5 ,

It would also be possible to couple the carrier 2 with the head 28 only in that the fixing element 58 in one of the two recesses 12, 14 and the corresponding recesses 20, 22 is introduced. In these cases, then the carrier 2 would no longer as in the Fig. 5 and 6 extend over the entire support plane 32 of the head 28 away. Rather, it would only extend over less than half the width of the support plane 32, so that, for example, via the fixing element 52, a further carrier 2 is coupled to the head 28 could be, so that both carriers 2 would extend aligned in the longitudinal direction.

Finally, a carrier 2 could also be coupled via its recesses 12, 14 or recesses 20, 22 in such a way with the head 28 that it is perpendicular to its in Fig. 5 shown alignment extends. In this case, then the fixing element 54 would engage in one of the recesses 20, 22, wherein the back of the base portion 4 of the carrier would be supported on the stop surface 72 of the stop tab 68.

In particular, it is also possible to couple two, three or four carriers 2 to the head 28, wherein each of the carriers 2 can then be fixed between one of the above-mentioned pairs of fixing elements 52 to 66 and stop surfaces 72 to 86. The individual carriers 2 may extend parallel or perpendicular to each other.

The Fig. 7a to c show how a coupling between carrier 2 and head 28, as shown in Fig. 5 is shown, can be produced.

First, a formwork element 98 consisting of girders 2 and longitudinal members 92 is oriented relative to a vertical support 90 such that the longitudinal girders 92 are either substantially parallel to the vertical support 90 or, as in FIG Fig. 7a shown slightly oblique to this orientation. In this orientation, a formwork element 98 can be easily grasped by a fitter and lifted so that the support 2 is ultimately located above a head 28 of the vertical support 90. Starting from this raised position then the formwork element 98 is aligned and lowered by the fitter so that the fixing elements 52, 58 in the V-shaped recesses 14, 16 of the tab 10 are introduced. This insertion is facilitated by the V-shape of the recesses 14, 16. In this way, therefore, a hook connection between the head 28 and the carrier 2 is already established, in which the weight of the shuttering element 98 can be introduced to a predominant part on the support plane 32 in the vertical support 90, so that the person performing the assembly no longer must keep the full weight of the formwork element 98.

Starting from the hook connection according to Fig. 7a Now is the formwork element 98 according to Fig. 7b pivoted in the direction of the arrow about a pivot axis extending parallel to the longitudinal axis of the carrier 2, wherein during this pivoting movement, the fixing elements 52, 58 - guided by the V-shaped recesses 14, 16 - in the recesses 22, 24 of the support surface 6 of the support. 2 be moved in. The said pivoting movement is continued until the position according to Fig. 7c is achieved, in which the shuttering element 98 and its longitudinal beams 92 extend in the horizontal direction perpendicular to the vertical support 90. Out Fig. 7c is particularly clear that the stop surfaces 80, 82 effectively prevent in this fully assembled position that the carrier 2 in the arrow direction so perpendicular to the base portion 4 of the carrier 2 moves that the fixing elements 52, 58 out of engagement with the recesses 22, 24th reach.

If, in the context of disassembly of the formwork element 98, the procedure is reversed, the bevel formed on the underside of the support surface 6 and enclosing the base section 4 at an angle of approximately 75 ° advantageously has an effect. Because of this slope, it is namely possible, the shuttering element 98 starting from the position according to Fig. 7c contrary to the direction of the arrow Fig. 7b swivel without being between the top of the formwork element 98, a formwork skin resting thereon and an already created concrete pavement a clamping effect occurs. Rather, the slope ensures that move all parts of the formwork element 98 when pivoting down, so that a trouble stripping is possible.

The Fig. 8a to c illustrate that a corresponding coupling process can be realized if it is ultimately desired that the finished assembled formwork element 98 in a relation to the Fig. 5 and 7a to c 90 ° offset angle relative to the head 28 to extend. In this case, then, for example, the fixing element 64 cooperates with one of the recesses 12 or 14 or recesses 20, 22 of the carrier 2. The described pivoting process runs according to the Fig. 8a to 8c analogous to that in connection with the Fig. 7a to c described pivoting operation with the difference that the back of the base portion 4 of the carrier 2 according to Fig. 8c ultimately on the support surface 78 of the stop tab 70 is supported, which in turn prevents the fixing member 64 can move out of the recess 20 and 22 out.

• Träger 100: Fixierelement 56, Ausnehmung 22, Anschlagfläche 74
• Träger 102: Fixierelement 62, Ausnehmung 22, Anschlagfläche 76
• Träger 104: Fixierelement 52, Ausnehmung 22, Anschlagfläche 80
• Träger 106: Fixierelement 66, Ausnehmung 22, Anschlagfläche 86

Fig. 9 shows a total of four carriers 100, 102, 104, 106, which are coupled to a head 28 of a vertical support 90. The two carriers 100, 102 are arranged mutually aligned end-to-end with each other, whereas the two carriers 104, 106 extend parallel to each other and perpendicular to the carriers 100, 102. All carriers 100 to 106 are formed as in connection with the carrier 2 according to Fig. 1 described. The following fixing elements, recesses and stop surfaces with respect to the various carriers 100 to 106 act together here:

• Carrier 100: fixing element 56, recess 22, stop surface 74
• Carrier 102: fixing element 62, recess 22, stop surface 76
• Carrier 104: fixing element 52, recess 22, stop surface 80
• Carrier 106: fixing element 66, recess 22, stop surface 86

• Träger 100: Fixierelement 52, Ausnehmung 22, Anschlagfläche 80
• Träger 102: Fixierelement 66, Ausnehmung 22, Anschlagfläche 86
• Träger 104: Fixierelement 58, Ausnehmung 22, Anschlagfläche 82
• Träger 106: Fixierelement 60, Ausnehmung 22, Anschlagfläche 84

Fig. 10 shows an arrangement in which all the carriers 100 to 106 parallel to each other, wherein each two carriers 100 and 106 or 102 and 104 are arranged longitudinally aligned with each other at the end face each other. In this arrangement, the following fixing elements, recesses and stop surfaces act together:

• Carrier 100: fixing element 52, recess 22, stop surface 80
• Carrier 102: fixing element 66, recess 22, stop surface 86
• Carrier 104: fixing element 58, recess 22, stop surface 82
• Carrier 106: fixing element 60, recess 22, stop surface 84

According to the invention, any other arrangements of one to four carriers can be realized on a head 28. In each coupled via one of the two outer recesses 20 or 22 with a head 28 carrier 2 can be completely independent of all other coupled to the head 28 carriers 2 realize two different, mutually offset by 90 ° alignments of the support 2.

LIST OF REFERENCE NUMBERS

2

carrier

4

base section

6

support surface

8th

bearing surface

10

flap

12, 14, 16, 18

recess

20, 22, 24, 26

recess

28

head

30

U-shaped section

32

support plane

34

coupling tabs

36

stop elements

38

spring element

40

end

42

perforation

44, 46, 48, 50

fixing lugs

52, 54, 56, 58, 60, 62, 64, 66

fixing

68, 70

stop tabs

72, 74, 76, 78, 80, 82, 84, 86

stop surfaces

88

headstock

90

vertical support

92

longitudinal beams

94

scarf skin

96

Stopends

98

An element

100, 102, 104, 106

carrier

Claims (25)

1. A slab formwork system having a plurality of formwork elements (98) and vertical supports (90), wherein the formwork elements (98) have carriers (2, 100, 102, 104, 106) at their lower sides which can be coupled to heads (28) of vertical supports (90) and whose cross-section is configured at least regionally in C shape having two limbs extending away from a base section (4), wherein one of the limbs is designed as a support surface (6) for supporting on a head (28) of a vertical support (90),
   characterized in that
   the head (28) of a vertical support (90) has fixing elements (52, 54, 56, 58, 60, 62, 64, 66) which engage into a respective recess (20, 22, 24, 26) of a support surface (6), with the recess (20, 22, 24, 26) being provided for the selective coupling of the carrier (2, 100, 102, 104, 106) to the vertical support (90) in two directions offset by 90° with respect to one another at the end of the support surface (6) remote from the base section (4).
2. A slab formwork system in accordance with claim 1,
   characterized in that
   the carrier (2, 100-106) is configured as an open section.
3. A slab formwork system in accordance with one of the preceding claims,
   characterized in that
   the support surface (6) of the carrier (2, 100-106) has two, three or more respective recesses (20-26) in each of the two mutually remote end regions of the carrier (2, 100-106).
4. A slab formwork system in accordance with claim 3,
   characterized in that
   at least two recesses (20-26) of the support surface (6) and two fixing elements (52-66) of the head (28) of a vertical support (90) are spaced apart from one another such that a simultaneous engagement of each of the two fixing elements (52-66) into a respective one of the two recesses (20-26) is made possible.
5. A slab formwork system in accordance with any one of the preceding claims,
   characterized in that
   the support surface (6) has at its end region remote from the base section (4) an upwardly extending or angled lug (10), preferably extending parallel to the base section (4) which is provided with a cut-out (10-18) in particular of V shape which is aligned with the recess (20-26) provided in the support surface (6) such that the cut-out (12-18) and the recess (20-26) merge into one another.
6. A slab formwork system in accordance with claim 5,
   characterized in that
   the lug (10) has two, three or more respective cut-outs (12-18) in accordance with claim 5 in each of the two mutually remote end regions of a carrier (2, 100-106), each of said cut-outs being aligned with corresponding recesses (20-26) in the support surface (6).
7. A slab formwork system in accordance with any one of the preceding claims,
   characterized in that
   the lower side of the support surface (6) extends obliquely upwardly in its installed position, starting from the base section (4), so that in particular the angle between the lower side of the support surface (6) and the base section (4) is smaller than 90° and preferably amounts to between 70° and 80°.
8. A slab formwork system in accordance with any one of the preceding claims,
   characterized in that
   the vertical supports (90) are each provided with a support head (28) which, in addition to a support plane (32) extending perpendicular to the longitudinal extent of the respective vertical support (9), has fixing lugs (44-50) angled therefrom for engagement into at least one recess (20-26) of the support surface (6) of a carrier (2, 100-106).
9. A slab formwork system in accordance with claim 8,
   characterized in that
   four fixing lugs (44-50) are provided per support head (28) which in particular extend perpendicular to the support plane (32) of the support head (28).
10. A slab formwork system in accordance with one of the claims 8 or 9,
    characterized in that
    adjacent fixing lugs (44-50) of a support head (28) extend perpendicular to one another.
11. A slab formwork system in accordance with any one of the claims 8 to 10,
    characterized in that
    the support plane (32) has a substantially square shape, with its fixing lugs (44-50) each extending parallel to diagonals of the support plane (32).
12. A slab formwork system in accordance with any one of the preceding claims,
    characterized in that
    the support head (28) has abutment regions for the rear side of the base section (4) of a carrier (2, 100-106) remote from the limbs (6, 8), with the abutment surfaces (72-86) of the abutment regions in particular extending perpendicular to the support plane (32).
13. A slab formwork system in accordance with claim 12,
    characterized in that
    a total of eight abutment regions are provided whose abutment surfaces (72-86) in particular extend at an angle of 45° to the fixing lugs (44-50).
14. A slab formwork system in accordance with one of the claims 12 or 13,
    characterized in that
    four abutment regions (80-86) are formed by a section (30) of the support head (28) bent in U shape.
15. A slab formwork system in accordance with any one of the claims 12 to 14,
    characterized in that
    two respective abutment regions (72, 74; 76, 78) are formed by one respective abutment lug (68, 70 bent out of the support plane (32).
16. A slab formwork system in accordance with any one of the preceding claims,
    characterized in that
    the support head (28) is releasably or fixedly connected to the vertical support (90).
17. A slab formwork system in accordance with any one of the preceding claims,
    characterized in that
    the support head (28) can be coupled to a preferably substantially square head plate (88) of a commercial vertical support (90).
18. A slab formwork system in accordance with claim 17,
    characterized in that
    the support head (28) can be pushed onto the head plate (88) in a direction extending parallel to the head plate (88) of the vertical support (90).
19. A slab formwork system in accordance with one of the claims 17 or 18,
    characterized in that
    the lower side of a support plane (32) of the support head (28) lies directly on the head plate (88) of the vertical support (90) in the installed position.
20. A slab formwork system in accordance with any one of the preceding claims
    characterized in that
    the support head (28), which is in particular produced from one single bent, cast and/or forged steel plate or plastic plate can be fixed to a vertical support (90) by means of a spring member (38) held in the support head (28).
21. A slab formwork system in accordance with any one of the preceding claims,
    characterized in that
    the vertical support (90) and the carrier (2, 100-106) of a formwork element (98) can be hooked to one another in such a position in which the formwork element (98) and the vertical support (90) include an angle smaller than 90°, with a pivoting of the formwork element (98) into such a position being made possible after the hooking together while maintaining the hook connection in which the formwork element (98) and the vertical support (90) include an angle of approximately 90°.
22. A slab formwork system in accordance with claim 21,
    characterized in that
    a carrier (2, 100-106) of a formwork element can be hooked to vertical supports (90) in such a position in which the formwork element (98) extends substantially parallel to the vertical supports (90).
23. A slab formwork system in accordance with any one of the preceding claims,
    characterized in that
    the formwork elements (98) each comprise longitudinal members (92) extending spaced apart parallel to one another which are fixedly connected to at least one cross member (2, 100-106) extending perpendicular thereto, with the upper sides of the longitudinal members (98) forming a contact surface for a sheathing (94), the upper side of the cross member or members (2, 100-106) contacting the lower side of the longitudinal members (98) and the lower side of the cross member or members (2, 100-106) forming the support surface.
24. A slab formwork system in accordance with any one of the claims 1 to 22,
    characterized in that
    the upper sides of the carriers (2, 100-106) form a contact surface for a sheathing.
25. A slab formwork system in accordance with any one of the preceding claims,
    characterized in that
    the formwork elements only have one or two carriers (2, 100-106), which are in particular straight, with them extending parallel to one another when two carriers (2, 100-106) are provided.

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