EP1899552A1

EP1899552A1 - Ceiling formwork system

Info

Publication number: EP1899552A1
Application number: EP06762357A
Authority: EP
Inventors: Artur Schwörer
Original assignee: Peri GmbH
Current assignee: Peri GmbH
Priority date: 2005-07-04
Filing date: 2006-07-03
Publication date: 2008-03-19
Anticipated expiration: 2026-07-03
Also published as: KR20070041668A; KR100821890B1; ES2359334T3; CN101316976B; CN101316976A; DE102005031152A1; EP1899552B1; WO2007003400A1; AU2006265345B2; AU2006265345A1; US20090294627A1; US8313079B2; ZA200710648B; DE502006009059D1; PT1899552E

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

Ceiling formwork system

The invention relates to a slab formwork system with a plurality of formwork elements, which have on their underside 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 a support surface for resting on a Head of a vertical support is designed.

Such a slab formwork system is from the document

EP 0 130 425 A1. This system consists of formwork panels, on the underside of which C-shaped supports are arranged, which can be hooked in essentially vertical alignment of the formwork panels with a head of a vertical support, whereupon the formwork panels can be pivoted into a horizontal position while maintaining the hook connection. In order to avoid a displacement of the carrier in its 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 develop a Deckenschalungssys- 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 achieved by the features of claim 1 and in particular by the fact that the head of a vertical support in each case one

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 at 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 ceiling formwork system can be optimally adapted to individual circumstances by the given choice when attaching formwork elements to 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 scarf panel.

The carriers used according to the invention are preferably designed as open profiled 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 then make it possible to couple a carrier to a vertical support at different positions distributed over its length, 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 via said concurrent engagement either on a vertical support that it flush with its head or it can be made such a mounting that the support protrudes on both sides over the head of the vertical support. Providing a corresponding number of pairs of The support can protrude over different lengths adapted to the respective conditions over the head of the vertical support. 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 has on its end portion facing away from the base portion an upwardly extending or angled, preferably parallel to the base portion extending tab which is provided with a particular V-shaped recess provided with the in the support surface Recess is oriented so that recess and recess merge into one another. 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. In concrete terms, a carrier provided with said tab can be positioned above a head of a vertical support so that the recess in the tab is located directly above the respective fixing element of the head, whereupon the carrier can then be lowered onto the head the fixing element of the head is "threaded" into the recess of the tab. By subsequently pivoting the formwork element about 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 introduction of the fixing element to the recess of the support surface is promoted in particular by the V-shape of the recess in the lug, wherein the width of the V-shaped recess increases with increasing distance from 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 into any recesses of the support surface is facilitated.

Preferably, the underside of the support surface extends in its mounted position, starting from the base portion obliquely upward, so that in particular the angle between the underside of the support surface and the base portion is less 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 without difficulty, since a pivoting of a shuttering element about an axis running parallel to the support is not obstructed by an upward movement of surface areas of the shuttering element. This becomes clear in particular when considering the figures 7 a-c explained below.

The vertical supports may each be provided with a support head which, in addition to a vertical to the longitudinal extent of the respective Verti Ancillary support extending therefrom angled fixing tabs for engagement in at least one recess of the support surface of a carrier. In this case, these fixing lugs represent the above-described fixing elements of the support head. The use of angled fixing lugs is advantageous in that a raw-plate-like element can be used for the support head, of which certain areas, preferably corner areas, serve as fixing lugs be bent so that it is not necessary to attach separate fixing elements on the support head. Alternatively, however, it is also possible to design the support head as a cast or forged part or to manufacture it from 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, with its fixing straps each extending parallel to the diagonal 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 carrier coupled with such a support head, after completion of a mounting operation, areas of the fixing elements or fixing lugs are located in them 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 regions 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 releasably or firmly with 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 preferably comes to lie directly on the top plate of the vertical support in the mounted position, so that no elements extending the vertical support beyond its top plate are required. The distance between the top of the top plate of the vertical support and the support plane of the support head therefore corresponds in this advantageous embodiment substantially the thickness of the material used for the support head.

When a detachable connection is provided, the support head can-as already mentioned-be pushed onto a vertical support in a direction parallel to its support plane 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 incorrect 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 the formwork element and the vertical support an angle smaller than 90 °. In this case, it is preferable if, in the production of this hooked connection, the formwork element runs essentially parallel to the respective vertical support or the respective vertical supports.

After hooking, while maintaining the hook connection, the shuttering element can then be pivoted into a position in which the shuttering element and the vertical supports enclose an angle of approximately 90 °, so that the shuttering element extends in a horizontal plane in which it can ultimately be used for the production of a concrete pavement.

The formwork elements used in accordance with the invention may, for example, consist of longitudinal members spaced parallel to one another and fixedly connected to at least one cross member extending perpendicular thereto, the upper sides of the side members forming a contact surface for a formwork skin, the top side of the cross member (s) (FIG. s) bears against the underside of the side members, and the underside 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 erfϊndungsgemäßer manner.

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.

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

Fig. 1 is a three-dimensional view of an end portion of an im

Under the invention reaching used, can be coupled with the head of a vertical support support,

2 is a three-dimensional view of a coupling with a carrier according to FIG. 1 head of a vertical support obliquely from above,

3 is a view according to FIG. 2 obliquely from below, 4 shows a section through a head of a vertical support according to FIGS. 2 and 3,

5 shows a three-dimensional view of a with a head of a vertical support according to FIGS. 2 to 4 coupled carrier according to FIG. 1 in a first attachment position obliquely from above,

6 shows a view according to FIG. 5 from obliquely below upon realization of a second fastening position, FIG.

7a-c are each a side view of various method steps in coupling a carrier according to FIG. 1 with a head according to FIGS. 2 to 4, FIG.

8a-c views according to FIGS. 7a-c with a head of a vertical support rotated by 90 °, FIG.

9 shows a three-dimensional view of a vertical support head coupled with four supports from obliquely below, wherein two

Carrier are aligned perpendicular to two other carriers, and

Fig. 10 is a view according to FIG. 9, in which all four carriers are parallel to each other.

The carrier 2 shown in FIG. 1 is designed as an open, elongated profiled element which has a C-shaped section with two legs extending away from a base section 4, the lower leg serving as a support surface 6 for resting 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 also serve directly as a support surface for a formwork.

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 upward 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 embodiment will be explained below in connection with Fig. 7 a-c.

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 tion 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 decreases each with increasing distance from the support surface. The recesses 12 to 18 extend over the entire height of the tab IO 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 is pivoted after being brought to a fixing by 90 ° up to its position shown in Fig. 1. This pivotal movement is facilitated by the explained oblique orientation of the underside of the support surface 6.

In Fig. 1, only one end portion 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 larger sized sen is and corresponds to the distance from adjacent fixing elements of a head of a vertical support.

FIGS. 2 and 3 each show, in a 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.

Vertically spaced from the U-shaped section 30, the support plane 32 at its two opposite end portions each have a U-shaped downwardly curved coupling tab 34, so that between the facing each other coupling tabs 34 extending parallel to the support plane 32 receiving plane for a (not shown) head plate of a vertical support is defined. 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 attached, which consists of Figs. 2 and 3 and in particular Also seen in Fig. 4 can be seen. 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 the head 28 is pulled off a vertical support, the spring element 38 is deformed by the pull-off force, so that the spring element 38 ensures correct positioning of the head 28 relative to the vertical support, but also enables subsequent detachment of the head 28 from 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 sense 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 directions offset by 90 ° from each other and running parallel to the supporting plane 32 with a fixing lug 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 upwards, each of the two end, perpendicular to the support plane 32 extending edges of the Anschlagla see 68, 70 each have a stop surface 72, 74, 76, 78 for form the back of the base portion 4 of a carrier 2.

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

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.

5 and 6 show a head plate 88 of a vertical support 90, which is so far inserted into coupling lugs 34 of a head 28 until an edge of the top plate 88 abuts against the stop elements 36 of the head 28. A carrier 2 according to FIG. 1 is respectively coupled to the head 28, to the support surface 8 of which side members 92 are fastened which extend perpendicularly to the carrier 2. According to FIG. 6, a formwork skin 94 is attached to the upper side of the longitudinal members 92, which in turn is coupled to a front formwork 96. According to FIG. 5, the carrier 2 is coupled to the head 28 such 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 section 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 shown in FIG. 6, from which it is readily apparent that the recesses 20, 22 of the carrier 2 remain unused here and the carrier 2 protrudes further beyond the head 28 than in the position according to FIG. 5.

It would also be possible to couple the carrier 2 with the head 28 merely in that the fixing element 58 is inserted into one of the two recesses 12, 14 and the corresponding recesses 20, 22. In these cases, the carrier 2 would then no longer extend as shown in FIGS. 5 and 6 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 with the head 28 can be moved. could be coupled, 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 to the head 28 in such a way that it extends perpendicular to its orientation shown in FIG. 5. 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.

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

First, a formwork element 98 consisting of girders 2 and longitudinal members 92 is aligned relative to a vertical support 90 so that the longitudinal girders 92 extend either substantially parallel to the vertical support 90 or, as shown in FIG. 7a, slightly obliquely 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, between the head 28 and the carrier 2 already a hook connection is made in which the weight of the shuttering element 98 can be introduced to a predominant part of the support plane 32 in the vertical support 90, so that performing the assembly Person no longer has to hold the full weight of formwork element 98.

Starting from the hook connection according to FIG. 7 a, the shutter element 98 according to FIG. 7 b is then pivoted upwards in the direction of the arrow about a pivot axis running parallel to the longitudinal axis of the carrier 2, wherein the fixing elements 52, 58 are guided automatically by the V during this pivoting movement - shaped recesses 14, 16 - are moved into the recesses 22, 24 of the support surface 6 of the carrier 2. The said pivoting movement is continued until the position according to FIG. 7 c is reached, in which the formwork element 98 or its longitudinal members 92 extend in a horizontal direction perpendicular to the vertical support 90. It can be seen particularly clearly from FIG. 7c that the stop surfaces 80, 82 in this completely mounted position effectively prevent the carrier 2 from moving in the direction of the arrow perpendicular to the base section 4 of the carrier 2 such that the fixing elements 52, 58 are disengaged with the recesses 22, 24 arrive.

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, which forms an angle of approximately 75 ° with the base section 4, advantageously takes effect. Because of this bevel, it becomes possible, starting from the position according to FIG. 7c, to swivel the formwork element 98 counter to the direction of the arrow in FIG. 7b without having to move between the upper side of the formwork element. ment 98, a formwork skin resting on it and an already created concrete floor 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.

FIGS. 8 a to c illustrate that a corresponding coupling process can be realized if it is ultimately desired that the finished assembled formwork element 98 be in an angle offset by 90 ° relative to the head 28 with respect to FIGS. 5 and 7 a to c should 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 according to FIGS. 8a to 8c is analogous to the pivoting process described in connection with FIGS. 7a to c, with the difference that the rear side of the base section 4 of the carrier 2 according to FIG. 8c ultimately engages the support surface 78 of the stop tab 70, which in turn prevents that the fixing element 64 can move out of the recess 20 or 22 out.

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 aligned with each other end-to-end, 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 described in connection with the carrier 2 according to FIG. 1. 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: Fixierelement 66, recess 22, stop surface 86th

10 shows an arrangement in which all the carriers 100 to 106 run parallel to one another, wherein in each case two carriers 100 and 106 or 102 and 104 are arranged spaced from each other in the longitudinal direction and aligned with one another. 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 carrier 2 coupled to a head 28 via one of the two outer recesses 20 or 22, two different orientations of the carrier 2 offset by 90 ° can be realized completely independently of all other carriers 2 coupled to the head 28.

LIST OF REFERENCE NUMBERS

2 carriers

4 base section 6 support surface

8 support surface

10 tab

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 sections

42 opening

44, 46, 48, 50 fixing straps

52, 54, 56, 58, 60, 62, 64, 66 fixing elements 68, 70 stop tabs

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

88 headstock

90 vertical support

92 side member 94 formwork skin

96 face shuttering

98 formwork element

100, 102, 104, 106 carriers

Claims

claims

1. Ceiling formwork system with a plurality of formwork elements (98) which support on their underside with heads (28) of vertical (90) coupled carrier (2, 100-106) whose cross-section at least partially C-shaped with two from a base portion ( 4) is formed extending away legs, wherein one of the legs as a support surface (6) for resting on a head (28) of a

Vertical support (90) is designed, characterized in that the head (28) of a vertical support (90) in each case a recess (20-26) of a support surface (6) engaging fixing elements (52- 66), wherein the recess (20- 26) for selectively coupling the carrier (2, 100-106) with the vertical support (90) in two mutually offset by 90 ° directions at the base portion (4) facing away from the end of the support surface (6) is provided.

2. slab formwork system according to claim 1, characterized in that e e n e c e s e s that the carrier (2, 100-106) is formed as an open profile.

3. slab formwork system according to one of the preceding claims, characterized in that the support surface (6) of the carrier (2, 100-106) in each of the two opposite end portions of the carrier (2, 100-106) each two, three or has more recesses (20-26).

4. slab formwork system according to 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 such that a simultaneous Intervention of each of the two fixing elements (52-66) in each one of the two recesses (20-26) is possible.

5. slab formwork system according to one of the preceding claims, characterized in that the support surface (6) at its the base portion (4) facing away from an upwardly extending or angled, preferably parallel to the base portion (4) extending tab (10) , which with a particular V-shaped recess

(10-18) is provided, which is aligned with the provided in the support surface (6) recess (20-26) such that recess (12- 18) and recess (20-26) merge into one another.

6. slab formwork system according to claim 5, characterized in that the tab (10) in each of the two mutually remote end portions of a carrier (2, 100-106) each have two, three or more recesses (12-18) according to claim 5, the each aligned with corresponding recesses (20-26) in the support surface (6).

7. slab formwork system according to one of the preceding claims, characterized in that the underside of the support surface (6) extends in its mounted position, starting from the base portion (4) obliquely upward, so that in particular the angle between the underside of the support surface (6) and the Base portion (4) is less than 90 °, and preferably between 70 ° and 80 °.

8. slab formwork system according to 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 perpendicular to the longitudinal extent of the respective vertical support (9) extending support plane (32) thereof angled fixing lugs (44 50) for engagement in at least one recess (20-26) of the support surface (6) of a carrier (2, 100-106).

9. Ceiling formwork system according to claim 8, characterized in that there are four fixing lugs (44-50) per support head (28), which extend in particular perpendicular to the support plane (32) of the support head (28).

10. slab formwork system according to one of claims 8 or 9, characterized in that adjacent fixing lugs (44-50) of a support head (28) perpendicular to each other.

11. Slab formwork system according to one of claims 8 to 10, characterized in that the support plane (32) has a substantially square shape, wherein the fixing tabs (44-50) each extend parallel to diagonals of the support plane (32).

12. Slab formwork system according to one of the preceding claims, characterized in that the support head (28) abutment areas for the legs (6,

8) facing away from the rear side of the base portion (4) of a carrier (2, 100-106), wherein the stop surfaces (72-86) of the stop areas extend in particular perpendicular to the support plane (32).

13. Slab formwork system according to claim 12, characterized in that a total of eight stop regions are provided, the stop surfaces (72-86) extending in particular at an angle of 45 ° to the fixing lugs (44-50).

14. slab formwork system according to any one of claims 12 or 13, characterized in that four stop areas (80-86) by a U-shaped bent portion (30) of the support head (28) are formed.

15. Ceiling formwork system according to one of claims 12 to 14, characterized in that two stop areas (72, 74, 76, 78) are each formed by a respective stop tab (68, 70) bent out of the support plane (32).

16. Ceiling formwork system according to one of the preceding claims, characterized in that it e e e n e c e s e s that the support head (28) is releasably or firmly connected to the vertical support (90).

17. Ceiling formwork system according to one of the preceding claims, characterized in that the support head (28) with a preferably substantially square head plate (88) of a commercially available vertical support

(90) can be coupled.

18. slab formwork system according to claim 17, characterized in that the support head (28) in a direction parallel to the head plate (88) of the vertical support (90) extending direction on the top plate (88) can be pushed.

19. Slab formwork system according to one of claims 17 or 18, characterized in that the underside of a support plane (32) of the support head (28) in the mounted position rests directly on the top plate (88) of the vertical support (90).

20. Ceiling formwork system according to one of the preceding claims characterized e e c e e n e c e s that the particular made of a single bent, cast and / or forged steel or plastic plate

Support head (28) on a vertical support (90) by means of a support head (28) held spring element (38) is fixable.

21. Ceiling formwork system according to one of the preceding claims, characterized in that the vertical support (90) and the support (2, 100-106) of a formwork element (98) can be hooked together in such a position in which the formwork element (98) and the vertical support (90) enclose an angle of less than 90 °, wherein after hooking while maintaining the hooked connection, pivoting of the formwork element (98) is made possible in such a position in which the formwork element (98) and the vertical supports (90) at an angle of about 90 °.

22. Slab formwork system according to claim 21, characterized in that a support (2, 100-106) of a formwork element with vertical supports (90) can be hooked in such a position, in which the formwork element (98) is substantially parallel to the vertical supports

(90) runs.

23. Slab formwork system according to one of the preceding claims, characterized in that in that the formwork elements (98) each consist of mutually parallel longitudinal members (92) which are fixedly connected to at least one cross member (2, 100-106) extending perpendicular thereto, the upper sides of the side members (98) having a contact surface for a formwork skin (94), the upper side of the cross member (s) (2, 100-106) abuts the underside of the side members (98), and the underside of the cross member (s) (2, 100-106) abuts a support surface according to one of the preceding claims forms.

24. Ceiling formwork system according to one of claims 1 to 22, characterized in that the formwork elements have carriers (2, 100-106) according to one of the preceding claims, the upper sides of which form a contact surface for a formwork skin.

25. Slab formwork system according to one of the preceding claims, characterized in that the formwork elements only one or two, in particular straight carrier (2, 100-106), wherein in the provision of two

Carriers (2, 100-106) run parallel to each other.