SK64196A3 - Shuttering panel with edge struts made from a flat extruded section - Google Patents

Abstract

The proposed shuttering panel (1) has edge struts (3) formed from a flat extruded section made of aluminium, an aluminium alloy or another light metal, ensuring both lightness and rigidity. The contact points for clamps (7) for the mutual securing of such edge struts (3) of adjacent panels (1) are at a distance from the shuttering lining (2) at a site where the edge struts (3) have a full cross section and the hollow spaces (8) on either side of these contact points are not at risk of being deformed by the pressure exerted by the fixing clamps (7). A channel (14) or groove is provided with which the clamp can engage to ensure that this contact point is actually used. This makes it possible to use the same clamp (7) which serves for edge struts made of flat material with a central bead so that shuttering panels made of different materials and provided with such edge struts can be combined.

Description

Technical field

BACKGROUND OF THE INVENTION The invention relates to a formwork panel with extruded extrusions of extruded aluminum, aluminum alloy or the like of light metal, standing at their edges approximately rectangular to the formwork section, on which end bars extend perpendicular to the formwork section. indirectly or immediately adjacent the abutment faces of adjacent formwork panels, and on the rear sides of the opposite abutment faces, clamp-like fasteners act to fasten adjacent abutments to each other, the extruded profiles having chambers or similar cavities positioned in the longitudinal direction of the abutment are enclosed on all sides by walls, and wherein one edge of the outer partition has an angular space for attaching the formwork molding part, and parallel thereto, from the formwork molding side to the side lying The edge, in the operating position, is embraced by the clamp, whereby the engagement point for the clamp is a groove or groove extending at the rear of the extreme cross-member approximately centrally between the edges of the extreme cross-member.

BACKGROUND OF THE INVENTION

Such a formwork panel is already known from the prospectus of MEVA GmbH ALU STAR, Technische Anleitung, May 1992. The end partitions formed as an extruded profile have a relatively large thickness, so that the partitions must be appropriately

- large clamps, and due to their hollow cross-section for internal reinforcement

-2 running parallel to the formwork forming part which is located in the region of the groove or groove. The large cross-section as such imposes a corresponding weight, and in particular, large clamps of reasonably high weight must be used to connect such formwork panels.

Although formwork panels are known from practice, in which light metal is intended for the production of the outer partitions, the cross-section is formed relatively flat. In order to have the required stiffnesses known in practice, the extruded cross-sections are likewise extruded with cavities. The known extruded profile has at its rear two engagement points for a clamp which lies close to both edges of the extruded profile, namely, near the edge located on the molding part of the formwork and, on the other hand, near the edge of this extreme partition extending away from it.

In this case, the engagement points extend beyond the cavities present in the extruded profile, so that with a high clamping force there is a risk that the hollow profile of the outer partition consisting of light metal is pushed through. In order to minimize this danger without, however, and eliminating it, the clamp extends up to the region of the extreme partition which is located immediately on the rear side of the formwork section, so that the attachment of the extreme partition must be located at the front edge of the formwork section. It is therefore necessary to ensure that the fastening means permeable in the region of the formwork part of the formwork do not make the abutment surface uneven and, in particular, leak-proof in this region with the mutual abutment surfaces located there.

The point of engagement of the clamp remote from the formwork section, seen in cross-section, is conical, so that a certain central action occurs, but at the same time a force component is formed across the boundary wall of the cavity wall of the extruded profile. This also cannot be excluded in this area under high clamping forces

-3deformácia. If such deformation of the extruded profile is to be avoided in the region of its cavity boundary walls, the forces exiting the clamps must be limited, or the walls of the outer partition must be made reasonably strong, which in turn leads to a correspondingly greater formwork weight.

While an appropriately wide formwork section is formed with the extruded cross-sectional profile, however, the relatively wide bearing surface has to be assumed to be formed with a relatively large clamping surface, with an extruded flat cross section at the edge of this extreme cross-section near the formwork section. only a very small bearing surface.

In both cases, therefore, the fastening must be introduced into the narrow side of the formwork section or, in the case of a wide extruded profile, must be inserted from the side of the formwork section facing the concrete. This represents either a less stable attachment or damage to the formwork portion of the formwork facing the concrete.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a formwork panel of the aforementioned type in which clamping forces can be introduced transversely to an extreme partition outside the cavity walls, in particular also being able to be coupled to extreme panels of flat steel material, in particular at the same time improved attachment of extreme

X partitions on the formwork forming part, also relatively small clamps can be used.

SUMMARY OF THE INVENTION

In order to solve this problem, the formwork panel of the above-mentioned type is characterized in that the end wall has a full cross-section in the entire extent of the groove or groove, that on both sides of the groove they are located inside the end wall

- the cavity, and that the angular space retaining the formwork molding wall has an elongated, one-piece, protruding cross-section adjoining the formwork molding at the edge of the extreme cross-member near the molding molding part, which is a continuation of the boundary wall of the cavity near the molding molding part; which serves as a mounting flange for the formwork part.

Since the edge bar is a flat embossed profile, relatively small clamps are sufficient to allow the edge bars of adjacent formwork panels to be captured. In this case, it is also possible to attach the ebony panels, the outer partitions of which consist of a flat material, of steel, as described in DE-A-41 03 775.8. There is thus a wide range of uses. It is advantageous here that the clamp acts on the groove approximately in the middle of the edge bar so that the edge bars can be pressed together.

Since a full cross section is envisaged in this region and cavities are provided on both sides of the region having a groove or groove,. these cavities and their walls are not affected by the clamps in the sense that they could be pushed through. If very large clamping forces are applied, no deformation of the walls delimiting the cavities can be expected. Since the clamp engages at a distance from the molding molding part, there is also sufficient space in the region of the molding molding part for attaching the molding molding part to the edge of the formwork, for example at the rear of the molding molding part.

It has the considerable advantage that the angular space retaining the formwork molding part has, at the edge of the extreme cross-section near the formwork molding part, an elongated cross-section in one piece adjoining the rear side of the formwork molding part.

-5 formwork parts and serves as a mounting flange for the formwork form part. Thus, the bounding wall of the extruded profile cavity extending close to the molding part of the formwork, parallel to it and the surface to be concreted, does not need to serve as additional support for the clamp and to absorb the clamping forces, since the engagement location for the clamp extends further outwards. As a result, the wall may have a flange-like continuation which allows a good fit of the rear side of the formwork molding part and the fastening considered therein. The fastening elements are then located outside the mutual contact area of the extreme partition walls of adjacent formwork panels. Also, the fastening element need not be introduced into the narrow side of the formwork section, but may act across the formwork section with a corresponding cross-section. There is thus an improved fastening of the formwork forming part, without damaging the possible clamping force when joining the extreme crossbars of adjacent formwork panels.

In the region of the free edge of the edge bar, a solid material section and a reduction in cross-section may be provided next to the cavity arranged there, and the free edge may serve as a stop for the opposite stop on the clamp. As a result, the clamp, especially in the case of the clamping force component, can also serve to align the two joined edge bars which engage at the opposite stop on the clamp, which can be relative to the clamp in the same and identical position.

in the region of their cavities, the thickness of the cavities on both sides of the groove may be approximately the same as the walls of the cavity.

brought to

The thickness of parallel parallel, and boundary,

This results in an end wall of a substantially constant thickness, which is interrupted only at the rear by a groove or groove that corresponds to the notch at the end wall according to DE-41 03 775 and can also have its shape and effect. It is expedient that:

Thus, the groove has oblique boundaries, the bevel angle being, for example, 45 degrees, so that they can interact with a correspondingly obliquely formed clamp projection. This leads to the aforementioned alignment at the opposite stop of the clamp.

Also, the width of the cavities may be approximately equal across the plane formed by the formwork forming portion. Thereafter, cavities of approximately equally thick and equally wide cavities are formed on both sides of the engagement groove having approximately the same flexural strength. In this way, the clamping force can also be distributed uniformly on both sides of the clamping point.

The abutment surface of the edge bar may have at least one flat recess between the two edges of the edge bar so that there is a free space in this central region when two edge bars are adjacent to each other. Under the action of the clamping force of the clamp elastic deformation, compressing its own tightness. Eventually, an eventual light is thereby admitted, which leads to the contact surfaces of small contaminants of adequate strength and thus to the good can be absorbed by the recess or the interspace.

DE-OS 41 03 775 provides a connection with an end bar of a flat steel material with an embedded notch in that the groove groove or the like is arranged to engage the clamp at a distance from the molding part of the formwork or the free edge of the edge bar in which in the case of an outer partition formed from a flat material of steel, it is located to engage the clamp of the notches, and that the width of the outer partition consisting of the flat material is particularly equal to the width of the outer partition formed of the extruded profile. Thereby, the abutment surfaces can also serve to align such edge bars made of different materials. This results in a high load-bearing capacity of the formwork panel, at the same time favorable or low weight, and a problem-free connection with known frames

-7 peeling panels with flat outer partitions consisting of steel. In a preferred method, the corresponding matching clamps can be used, i.e. the owner of the formwork with edge formwork panels made of steel flat materials can obtain, as an alternative or additionally, an extrusion formwork formwork panel formed according to the invention, and use it together with other formwork panels. This creates the possibility for the owners of older formwork to convert it to new formwork panels without using the existing formwork panels.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described in more detail below with reference to the accompanying drawings, in which: FIG. 1 is a partial cross-sectional side view of the outer region of the formwork panel, the upper edge of which shows the cross-section of the extruded profile in accordance with the invention; FIG. 1 'is a cross-sectional view of the two adjoining edge bars according to the invention, for the sake of simplicity, without the molding part of the formwork being pressed by a clamp which acts in the central groove-provided region of the edge bar where this solid cross section is present; 3 shows a representation corresponding to FIG. 2, wherein the extruded cross-section according to the invention is extruded from the extruded profile by means of a clamp with an extruded cross-section of a flat steel material with a groove-shaped notch, whereby for the sake of simplicity only the end-walls and not the complete formwork panels are shown.

Examples of embodiments of the invention

The overall formwork panel 1 has at its edges approximately rectangular to its formwork part 2 the protruding edge bars 3 of a flat extruded profile of aluminum, aluminum alloy or other light metal. In addition, the formwork part of the formwork between these end walls 3 can be reinforced with further hollow sections 4 or similar structures.

At the end walls 2, the abutment surfaces 6 which are running perpendicular to the formwork part 2 are provided, on which the corresponding abutment surfaces 5 of the adjoining formwork panels 2 of the adjacent formwork panels, as shown in FIG. Second

With the rear sides 4 of the opposite abutment surfaces 5, according to FIG. 2 and FIG. 3, clamp-shaped fasteners 7 for fastening the adjacent side walls 2 so that the side walls 2 and thus the shuttering panels 1 are joined together by frictional engagement. According to the exemplary embodiments, the extruded profiles forming the end walls 2 are disposed in their longitudinal direction and are enclosed by walls 2 on all sides. This leads to a reduction in weight and at the same time to a high rigidity.

One edge 10 of the outer partition 2, which is located in the region of the formwork molding part 2, has an angular space 11 for attaching this formwork molding part 2. One angle arm extends beyond the front surface of the formwork molding part 2 while the other angular arm 12 acts on the rear the side of the formwork section 2 facing away from the concrete surface.

Parallel thereto, from the formwork forming part 2, the side lying edge 13 of the outer partition 2 is in the operating position

9 surrounded by a clamp 2 as shown in FIG. 2 and FIG. Third

The point of engagement of the clamp 2 is a groove 14 or a groove extending on the rear side 6 of the edge bar 3, which is arranged approximately midway between the edges 10 and 13 of the edge bar 3, so that the clamp 2 does not have to reach immediately to the molding section 2. The end wall 3 has a full cross-section in the region of the groove 14, so that the forces starting from the cross-sectional area of the groove 14. the clamps 2 do not lead to deformation of the cavities 8. These cavities 6 are located on both sides of the groove 14 within the outer partition 3, and also on both sides of the full cross-sectional area. This arrangement is clearly shown in FIG. 1, but also in FIG. 2 and FIG. Third

The angular space 11 retaining the formwork molding part 2 at the edge 10 of the extreme partition 3 close to the formwork molding part 2 has an elongated, one-piece cross-section 15 or flange adjoining the rear side of the formwork molding part 2 which is a continuation of the boundary wall 16 of the cavity. near the formwork molding part 2 running parallel to the formwork molding part 2 and the surface to be concreted. This partition 15 can serve as a mounting flange for the formwork molding part 2, which is highlighted by a dotted line 17 indicating the screw. This creates sufficient space for the fastening element of almost any cross-section, so that a much better fastening is possible than if this had to be carried out by an angular space arm which extends beyond the end face 18 of the formwork molding part 2 and there is a sealing 12. further reinforced whole outer partition 3.

In the region of the free edge 13 of the outer partition 3, a section 20 of solid material and a reduction of the cross-section 21 which can be caught by the clamp on the corresponding opposite stop 22 are known to serve as a stop for aligning two mutually connected

10, as shown in FIG. 2. According to FIG. 1 and FIG. 2, the abutment or abutment surface 6 of the end wall 2 between the two edges 10 and 13 has a flat recess

23, so that there is a free space in the middle region at the adjoining of the two outer partitions. this space or recess 23 in this case overlaps the regions of the cavities 2 so that the actual contact and the force transmission always take place away from the cavities 8. The reasonably strong compressive forces can thus be transmitted and absorbed in this region.

In this case, the thickness of the end wall 3 in the region of its parallel cavity 2 is approximately equal on both sides of the groove 14, and the thickness of the cavities and the boundary walls of the cavity 2 is also approximately equal, so that thus the same compressive and bending strengths are the same. Also, the widths of the cavities 2 across the plane formed by the formwork forming part 2 are approximately the same.

The boundary 24 of the groove 14 is shown in FIG. 1 and FIG. 2, obliquely and extends at an angle of 45 degrees - seen in cross section - with respect to the stop surface 2 of the end wall 2. This can be acted upon by a suitably formed projection 25 of the terminal 7 and cause a force component also in the direction mentioned that the clamp 7 affects the end bars 2 only by its projections 25 inside the groove 14, and also in the clamped position according to FIG. 2 between the jaws 26 of the clamp and the rear side of the end bars 2, only the minimum space can remain. However, although clamping forces are also introduced and transmitted, the cavities 2 disposed between them cannot be pushed, since on both sides of the cavities 2 located between the clamp jaws 26, a sufficient support is now provided, a full cross-section.

The groove 14 or groove can be operated by any clamp, for example according to DE-A-41 03 775 or - as shown in the exemplary embodiment - according to DE-42 36

-11070. It is contemplated that the groove 14 for engagement of this clamp 2 is spaced apart from the formwork molding part 2 or the free edge 13 of the end wall 2, while at the end wall 3a of FIG. 3, the edge 14a for engaging the clamp 7. The width of the edge bar 3a consisting of the flat material is equal to the width of the edge bar 3 formed from the extruded profile, so that the two different edge bars 3a 3a can be together according to FIG. 3 can be fastened without any problems by clamp 7. In this way, the formwork panels with such different edge cross members can be easily combined. Thus, it has been possible to provide an extruded light metal bar made by extrusion which allows good force engagement of the clamp 7 at a location where the cavities S cannot be damaged by this compressive force of the clamp 7, whereby 2 can be combined with an already existing and existing end wall so that the same clamp 7 can fasten the two different end walls 2 and 3a together. Thereby, the formwork panels according to an exemplary embodiment can be combined with such formwork panels having edge bars 3a.

The formwork panel 1 has edge bars 2 of flat extruded aluminum, aluminum alloy or other light metal and hence low weight and high rigidity. The engagement points for the clamps 2 for fastening such end bars 2 of the adjacent formwork panels 2 to each other are spaced apart from the formwork molding part 2 at the point where the end bars 2 have a full cross section and the cavities 2 located on both sides of this engagement point they are at risk of being deformed by the compressive force of the fastening clip 11. In this case, the groove 14 or the groove is intended as an engagement for the clamp, so that this engagement point is also actually used. Thus, the same terminal can be used

-127, which may also serve to the crossbars of the flat with the middle notch, so that the formwork panels can also be combined with such edge from different materials.

represents:

Claims (1)

PATENT CLAIMS The formwork panel (1) with edge bars (3) of a flat extruded light-like profile approximately of aluminum, aluminum alloy or metal, standing at right angles to the formwork section, on which the edge bars (3) extend rectangular to the molding section (2) ) formwork of a stop surface (5), in which the stop surfaces (5) of adjacent edge bars (3) of adjacent formwork panels adjoin indirectly or immediately in the operating position, and act on the rear side (6) of opposite stop surfaces (5) adjoining edge bars (3) clamp-shaped fasteners (7), the extruded profiles having chambers or similar cavities (8) positioned in the longitudinal direction of the edge bars which are closed on all sides by walls, and wherein one edge (10) of the edge bar (3) has an angular space (11) for attaching the formwork forming part (2), and with it a pa The rim of the formwork part (2) with the edge (13) lying sideways in the operating position is embraced by the clamp (7), the point of engagement for the clamp (7) being the groove (14) running at the rear (6). ) or a groove which is disposed approximately in the middle between the edges (10, 13) of the outer bar (3), characterized in that the outer bar (3) has a full cross section in the entire region of the groove (14) or groove, cavities (8) are located within the groove (14) within the outer partition (3) and that the angular space (11) retaining the formwork forming part (2) has, at the edge (10) near the forming part (2) of the outer partition formwork (3) a cross-section, elongated in one piece, on the rear side of the formwork part (2) of the formwork adjoining the partition (15), which is a continuation of the bounding wall (16) of the cavity (8) near the formwork part (2) and serves as fastening flange for molding part (2) formwork. The shuttering panel according to claim 1, characterized in that in the region of the free edge (13) of the extreme (3) next to the cavity (8) arranged there. Third Third 4th 4th the section (20) considered of solid material and the reduction (21) of the cross-section, and the free edge serves as a stop for the opposite stop (22) on the clamp (7). The formwork panel according to claim 1 or 2, characterized in that the thickness of the end wall (3) is approximately equal in the area of their parallel cavities (8) on both sides of the groove (14) and that the thickness of the cavities (8) and the walls the cavity (8) bounding, is also in particular approximately the same. The formwork panel according to claims 1 to 3, characterized in that the width of the cavities (8) is approximately equal to the plane formed by the formwork forming part (2). The shuttering panel according to one of claims 1 to 4, characterized in that the stop or contact surface (5) of the end wall (3) has at least one flat recess (23) between the two edges (10, 13) of the end wall (3). In this middle region, there is a free space between the two outer partitions (3). -156. The formwork panel according to claims 1 to 5, characterized in that the groove groove (14) or the like clamp engagement structure (7) is spaced apart from the formwork molding part (2) or the free edge (13) of the end wall (3). 1), whereas in the case of an outer partition (3a) formed of a flat steel material, the notches (7) of the notches (14a) are engaged for engagement and that the width of the outer partition (3a) consisting in particular equal to the width of the extruded profile. the flat material is a partition (3) formed Formwork panel according to one of Claims 1 to 6, characterized in that the boundary (24) of the groove (14) runs obliquely with respect to the stop surface (5) or with respect to the rear side (6) of the end wall (3), in particular at an angle of approximately 45 degrees. .