SK134093A3 - Device for detachably securing formwork boards - Google Patents

Abstract

Proposed for detachably securing formwork panels, formwork boards, insulation and facade panels, breastbars (41), scaffolding brackets (61), etc., is a holding device (1) designed to be embedded and fixed in place in the concrete structure of the building. This holding device has one or more sockets (17, 19) in which matching parts (33, 40, 51a, 63) of the securing, support and/or gripping elements mentioned can be detachably inserted.

Description

Technical field

The present invention relates to a device for detachable fastening of formwork panels, formwork boards, facade and insulating boards, sill bars, scaffold brackets and the like, which comprises an anchoring bracket for holding at least one support, support and / or clamping element, front formwork with fixture, scaffold fencing structure and / or formwork fixture, as well as a device for fastening insulating and / or facade boards with the device.

BACKGROUND OF THE INVENTION

In order to form the lateral lateral ends of parts of components, in particular concrete floors and the like, usually a vertical formwork for the formwork of the lateral end is fastened by means of a screw connection to a bracket that is concreted as described in DE-GM-81 27 001. it is very time consuming, and the introduction of the screw thread into the nut thread is very difficult because it is not directly visible.

A similar construction is described in CH-PS-624 446, which discloses an anchoring and / or retaining device for a frontal formwork wall which may be embodied, for example, in an angle or L-shape.

The disadvantage of this design is that the concrete and any metal parts protruding from the wall must be removed and the wall itself must be repaired or finished.

CH-PS-625 589 discloses an L-shaped angle bracket with fastening means for fastening the edge formwork, the angle bracket being held at such a distance from the side formwork and the ceiling formwork by means of two spacers located on both arms that it is completely covered Concrete.

The proposed fixation means comprise a wing nut which must be screwed into the thread of the nut, which, as mentioned above, is very disadvantageous on the construction site.

A further disadvantage of all these solutions is that the relatively expensive angles are simply concreted so that they can no longer serve other purposes.

Finally, German patent DE-35 12 768 proposes an apparatus for fastening the formwork boards according to which the formwork or the individual boards are retained by means of a pressing wedge. The pressing wedge is held in the angle by means of completely extendable, removable fastening means, which, however, is concreted again. The advantage of this device is that the fasteners and the wedge clamp are completely removable and therefore no repair or refill is completely required. But here again the relatively expensive metal part is lost by concreting. It would be possible to provide a metal part flush with the ceiling wall or side walls so that it could eventually be used for further use, but, as is known, flat metal ends due to poor adhesion are undesirable for the application of plaster and other cover layers.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fastening device by means of which quick and simple lateral ending or detachment of the lateral endings of buildings is possible, which is not economically demanding and adapted so that it can be used for other purposes.

The above-mentioned drawbacks are eliminated by the device, in particular for detachable fastening of formwork boards, formwork boards, facade and insulating boards, railing bars, scaffolding brackets and the like, comprising essentially an L-shaped, anchored, polymeric material holder made to hold at least one support, the support and / or clamping element. SUMMARY OF THE INVENTION The present invention provides an arm to be applied to a substrate which is provided with a contact surface to provide a stable seat on the substrate. The arm is further provided with fastening means for anchoring or fastening the bracket to the formwork of the ceiling and / or to the crown of the wall.

Especially suitable as the polymeric material are the known mass-produced plastics such as polyethylene, polyvinyl chloride (PVC), ABS. j. acrylonitrile-butadiene-styrene polymers, polypropylene and others. It goes without saying that the plastic chosen must correspond to the requirements placed on the holder. It is preferable to use reinforced polymers, in particular polymers or plastics, which are filled with glass fibers or glass beads.

Fiber-reinforced concrete materials, in particular glass-fiber reinforced polymer-concrete materials, have also proved suitable for the manufacture of the support according to the invention. By way of example, glass-reinforced or polyester-reinforced polymer-concrete can be mentioned, for example polyester additives or epoxy resin additives, added to known mineral binders.

The great advantage of using polymeric materials, such as glass fiber reinforced plastics or polymer concrete, is that they are substantially less expensive, less weight, easier to handle, less expensive to manufacture, and moreover, less expensive to manufacture. , the fastening part (holder) can be flush with the ceiling or side formwork, since the plasters and other coverings exhibit a better adhesion on the plastic substrates than on the metal substrates.

Further, a bracket is provided which comprises one or more receiving parts (parts) for a sliding, sliding and / or screw fastening of a fastening, support and / or clamping element (s), in particular for detachable fastening of the formwork (s), formwork plates, rods railings, scaffold brackets and the like.

Further preferred embodiments of the fastening device according to the invention are characterized in subclaims 5 to 12.

The fastening device according to the invention is suitable for frontal formwork, in particular as DE-PS-3512768, a part of the present fastening device being described and claimed in German, the content of which is an integral invention. The detailed description of the fastening of the shuttering boards and the board for the shuttering of the side ends of the components as described in DE-PS 35 12 768 is omitted with reference to this prior art.

Furthermore, the fastening device according to the invention is suitable for scaffolding and / or shuttering construction according to the wording of claim 12. In this connection, reference is made in particular to Swiss patent CH-PS-678 081, in which scaffolding and cladding structures are described in detail. CH-PS-678 081 is also an integral part of the present invention. In this regard, reference is made to FIG. 6, 7, 9, 10 and 11 of the patent

CH-PS-678,081.

Finally, the fastening device according to the invention is also suitable for fastening insulating or facade boards.

Accordingly, there is provided an arrangement for fastening insulating and / or facade panels comprising at least one device defined in accordance with the invention, the device being provided with one or more fastening points intended to receive (fix) the respective part of the insulating and / or or façade board to attach it to the device.

Overview of the figures in the drawing

In the following, the invention is illustrated in more detail with the aid of the examples and the accompanying drawings.

The pictures show:

Fig. 1 - a view of a holder according to the invention made of plastic with fastening means for formwork boards according to the invention

Fig. 2 shows a further holder according to the invention with anchoring elements, FIG. 3 shows the holder of FIG. 1, viewed from the opposite side,

Fig. 4 is a side view of the fastening device of FIG. 1 on a concrete ceiling with lateral ends and mounted formwork, also in side view,

Fig. 5 - a perspective view of a set of elements for a scaffold and formwork bracket structure defined in accordance with the invention,

Fig. 6 is a schematic view of an insulating formwork arrangement which according to the invention can be mounted in a plastic holder, and

Fig. 7 - external insulation firmly mounted with plastic holders.

Examples

In FIG. 1 shows a fastening device according to the invention, which comprises a holder 1 (fastening part) to be concreted, which is preferably made of a larger part of a polymeric material, such as a glass fiber reinforced plastic such as polyethylene, PVC or ABS. Of course, other polymeric materials or plastics such as polypropylene, polyamide and the like are also suitable, but the latter are rarely used for cost reasons.

Fiber-reinforced concrete, such as glass-fiber reinforced polymer concrete, in which cement and water, binders known from normal concrete, have been replaced by unsaturated polyester resins, have been shown to be substantially higher, thereby achieving a substantially higher strength. Of course, fibers other than polyester, polyamide, carbon and the like can be used instead of glass fibers, and of course, epoxy resins, polyurethane resins and the like are suitable for the preparation of polymer concrete, instead of unsaturated polyester resins.

Especially if high demands are placed on the holder 1 (fastening part), high-quality plastics reinforced with the aforementioned polyester, polyamide, carbon, etc. fibers can be used. Alternatively, the holder may be made of metal.

The bracket 1 (fastening piece) is L-shaped and has one leg 2 longer, with its contact surface 11 firmly adhering to the shuttering of the ceiling 9 or the wall crown 7. Fastening means 13 are used to secure the longer arm 3 to the shuttering of the ceiling 9. such as screws, nails and the like. The second arm 5, to which the formwork plates or formwork sheets are to be at least partially flat, preferably comprises a tubular, square shaped fastening point 19 / into which the rectangular tubular portion 33 of the socket part 31 can also be inserted. the socket beam 39, the wedge arm 36 as well as the wedge clamping jaw 35, which in turn comprises a wedge surface 37 for fastening the formwork plates on the outside of the vertical arm 5 of the holder 1. It further comprises a lateral longitudinally extending notches 5 or a groove or groove 16 , the meaning and function of which will be described in more detail with reference to FIG. 6 and 7.

The assembly of the shuttering board by means of the push-in device according to the invention shown in FIG. 1, will be explained later with reference to FIG. 4th

Since the holder 1 is intended to be concreted in a building component or in a ceiling, and to prevent the holder from breaking after the formwork has been removed, the holder is provided with ribbed notches and the like which are filled with concrete. For this reason, the holder 1 in FIG. 1, one groove 15 which is simultaneously provided with a metal sheath 21 and can serve as a reinforcement groove to strengthen the L-shaped holder 1 at its apex point.

For inserting, for example, scaffold brackets or sheeting brackets, the horizontal arm 2 also has a sleeve-like and tubular fit to the fastening two reinforcing irons, a shaped location for receiving the arm 17a, its opening 17 being located on the outside of the building and not shown.

In FIG. 2 shows in turn a holder 1 defined according to the invention, again suitable, for example, for mounting a push-on piece which is not shown in FIG. 1. Unlike the holder 1 of FIG. 1, the fastening point 19 (attachment point) in the vertical arm of the bracket 1 is arranged with the building front in one plane, as a result of which the formwork plate is directly in the form of a sleeve or tube.

Further, the holder according to FIG.

or anchors 23 and 25, the latter being fixed in the housing 27 on the arm 5. These reinforcing irons or anchors 23 and 25 allow additional stabilization of the bracket on the building component, which may be necessary, particularly when sliding parapet bars or scaffold brackets into the one of the fastening points 17 or 19.

In FIG. 3 shows the holder 1 in a view from the opposite side to FIGS. 1a and 2. In this embodiment, the holder adjoins the crown of the wall 7 and the shuttering of the ceiling 9. The opening 17 of the fastening point 17a is now clearly visible from the front. in the form of a sleeve or tube which is embedded in the horizontal arm 3 of the holder 1.

Further, the bracket 1 on the vertical arm 5 comprises front mounting holes 18a, 18b, and 18c in which various mounting elements, screws and others can be mounted.

In this way, it is possible, for example, to fasten the formwork boards in a conventional manner to the holder 1 by screwing.

It is also possible to hang on the holder or fix the case with tools, various instruments and the like.

Finally and most importantly, the sill bars or scaffold brackets can be retracted or retracted in both openings 17 and 19, and it is essential that all the fastening points and their openings are freely accessible even when the bracket 1 is locked in the component.

In FIG. 4 shows the arrangement of the fastening device of FIG. 1 for fastening the formwork and making the concrete ceiling, the upper surface of the concrete ceiling being made is indicated by 23. The holder 1 is placed on the ceiling formwork 9 and the crown of the wall 7 of the front wall 7a and is fastened, for example, with nails.

Then, the insertion piece 31, together with the insertion part 33, is embedded in a tube-shaped fastening point 19, and the formwork plate 38 is firmly clamped on the front side of the arm 5 of the holder 1 by means of a wedge clamping jaw 35.

The concrete ceiling to be formed lies in such a way that the upper surface 23 is aligned with the opening of the fastening point 19, whereby after the concrete ceiling has been made, the insertion part 31 can be easily removed from the bracket 1, leaving openings or fastening points 18a and plates 38 This makes it possible to insert plug-in or plug-in or screw-in parts into said holes or fixing points.

In FIG. 5 shows various parts of the scaffolding and shuttering structure, comprising first of all the holder 1 according to the invention, as well as the insertion part 31 shown in FIG. 1 and 4.

The same applies to the opening 17, 18c, after the formwork has been removed

In order to produce a sill or railing on the outside of the building, it is possible, either to the fixing point 19 or to the corresponding fixing point 39 on the plug-in part 31 to introduce a sill bar (railing bar) 41 with the corresponding plug-in element 60. retaining elements 43 are provided on the bar, for example for the placement of scaffolding boards.

Analogously, it is possible to insert the retaining element 51 into its fastening point 17 by its engaging portion 51a, wherein a fastening point 53 is arranged perpendicularly upwardly on the retaining element 51 on the front side for positioning the next sill bar 41 by insertion.

The stops on the parts 51a (not shown) prevent slipping from the fastening point 17.

Finally, it is also possible, after removal of the formwork from the concrete bracket, for example, preferably of a polyethylene ceiling, to insert the scaffold bracket 61 into the fastening point 19, which is carried out by means of a plug-in piece 63.

The scaffold bracket 61 comprises a horizontal support 69 for placing floorboards, struts 67 for laterally supporting the scaffold bracket on the site and from a fastening point 65 located at the front so that a sill bar (railing rod) 41 can also be placed on the scaffold bracket.

Fig. 5 shows a possible variant of the scaffolding and shuttering construction according to the invention with a holder according to the invention, which is expected to be concreted in the building. This made of reinforced plastic such as or PVC, but can also be made of metal. Of course, the other components may also be made of metal or of said plastic.

Owing to the achievable high strength values of such components made of reinforced plastics, it is possible, if the individual parts are sized, to make them from the plastics mentioned. The great advantage of making these plastic parts is both in the advantageous production and in the minimum weight, which is very suitable for handling and transport.

With regard to the design of the scaffolding and railing brackets, particular reference should be made to the patent No. CH-PS-678 081, in which, inter alia, FIG. 6, 7, 9, 10 and 11 of such constructions.

In FIG. 6 and 7, the meaning of the longitudinal groove or, respectively, the notch 16 referred to in FIG. First

In FIG. 6 and 7, it is shown that the fastening device 1 according to the invention gives the possibility of fastening the insulating or fixing boards from the outside to the building object, which at the same time can serve as formwork in the edge sector of the ceiling.

In FIG. 6, the fastening device according to the invention can be seen again so that it engages the formwork of the ceiling 9 and the masonry 7, which, as already mentioned, has a groove or longitudinal notches 16 on both sides of the groove for insertion or insertion of both protruding parts 74 of reinforced insulating panels 71, which can be made, for example, of wood-cement. An effective insulating layer 72, for example of polystyrene or other material suitable for insulating, is glued or screwed onto these sheets 71. The fastening plates 71 may further comprise pin-like elements 75 which can be inserted into corresponding holes 16a in the bracket 3. As shown in FIG.

In FIG. 7 shows how an insulation can be fastened at the same time as a formwork edge by means of a holder 1 according to the invention, made of metal or plastic. Again, two holders 1 are placed on the shuttering of the ceiling 9 and the sill 7, in which, in one holder, the insulation remaining from the fixing plate 71 and the insulating layer 72 is already fixedly mounted.

The second holder 1 is mounted in the direction of the arrow. Along the outer surface of the wall, the insulation has a corresponding continuation of the arrangement of further insulating panels (boards) 72a, which may, for example, be overlaid from the outside with a second masonry 77. The outer overlap may be provided with PVC reinforced mesh or cement insulation.

A great advantage of the formwork of the edges according to FIG. 6 and 7 is that no formwork removal is required after the concrete ceiling has been constructed. In addition, it is of course possible to place on the holder also in FIG. 6 and 7 into the upper aperture 19 also a railing bar to position the safety rails along the building.

In the fastening devices shown in FIG. 1 to 7 are examples which can be modified, modified or supplemented in any way by other parts. Advantageously, in the examples, brackets made of reinforced polymeric material are shown, with particular reference to FIG. 5, it should be noted that the scaffolding and shuttering structures defined and claimed according to the invention are of course also suitable for mounting in a metal bracket. The formation of individual elements of the barrier on the scaffolding and formwork can also be accomplished in many ways.

Claims (16)

A device, in particular for detachably fastening formwork boards, formwork boards, facade and insulating boards, railing bars, scaffolding brackets and the like, comprising essentially an L-shaped, anchored, anchored, made of polymeric material, for holding at least one support, support and / or clamping element, characterized in that the arm (3) intended to be applied to the substrate provided with a contact surface (11) for settling on the substrate. (7.9) is stable Device according to claim 1, characterized in that the holder (1) is made of a suitable plastics material, in particular polyethylene, PVC, ABS, polypropylene and other mass-produced plastics. Device according to claim 1, characterized in that the holder (1) is made of a reinforced polymer, in particular a glass-filled polymer. Apparatus according to claim 1, characterized in that the support (1) is made of fiber reinforced concrete, in particular of glass fiber reinforced polymer concrete. Device according to claims 1 to 4, characterized in that the holder has one or more fastening parts (16, 16a, 17, 18a, 18b), 18c, 19) for retractable, retractable and / or screw fastening of retaining, support and / or clamping elements (31, 41, 51, 61), in particular for detachable fastening of formwork boards, formwork boards (38), facade and insulating boards (71 72, railing bars (41) and / or scaffold brackets (61). Device according to Claims 1 to 5, characterized in that the arm (3) is provided with fastening means (13) for anchoring or fixing of the holder (1) to the formwork of the ceiling (9) and / or the crown of the wall (7). Device according to claim 5 or 6, characterized in that the holder is adapted to be concreted, in which the fixing parts (16, 16 and 17, 18 ac, 19) on the holder (1) are arranged such that at least a part of these parts is freely accessible after concreting from outside. Apparatus according to claims 1 to 7, characterized in that protruding parts (15), grooves and / or reinforcing elements (23, 25) are provided on the support (1) so that they are filled with concrete during concreting in order to hold the support firmly anchored in concrete. Apparatus according to claims 5 to 8, characterized in that the second arm (5) is provided with an upwardly open tube-shaped fastening point (19) for insertion by insertion. Device according to Claims 5 to 9, characterized in that they are integrally arranged in one arm (3) with a tubular and on the outside of the other arm an open element (17a) for the insertion or fastening of the barrier rod (51) or scaffold bracket ( 61). Device according to one of Claims 1 to 10, characterized in that the second leg (5) is provided with fastening portions (16, 16a) for the lateral fastening of the shuttering boards or sheets and / or the fastening of the side ends of the walls or insulating boards (71,72). ). Device according to claim 11, characterized in that the lateral fastening points comprise grooves or grooves (16) running longitudinally in the direction of the arm, in which the fastened shuttering boards, shuttering boards, wall ends and / or insulating boards are seated. TV luuo-qS - Device according to Claims 5 to 12, characterized in that at least one reinforcing rib (21) or a strip or a diagonal beam is arranged on the arms adjoining the inner side or the arms internally diagonally connecting. Device according to one of Claims 1 to 13, characterized in that in the second arm (5), fastening means (31) for clamping the formwork plates (38) or formwork plates on the outside of the second arm (5) to the holder (1) are pushed. . Construction of a railing and / or formwork sheathing, preferably with a device, in particular for detachably fastening formwork boards, formwork boards, facade and insulating boards, railing bars, scaffold brackets and the like, comprising an anchoring bracket for fastening at least one support, support and / or or a clamping element comprising at least a scaffold bracket bracket (61) and / or a front formwork fastening means (31), wherein at least one portion (33, 40, 31, and 33) is attached to the scaffold bracket bracket, fencing rod and / or bracket members. 63), which is fastened in or on the holder by a re-release method by sliding, inserting or screwing. Apparatus for fastening insulating and / or facade boards, in particular with a device particularly for detachably fastening formwork boards, formwork boards, facade and insulating boards, barrier bars, scaffolding brackets and the like, comprising an anchoring bracket for attaching at least one support (holding) ), a support and / or clamping element, characterized in that the insulating and facade panels (71, 72) are each provided with at least one part (74, 75), by means of which at least one panel is fastened at the mounting location (16, 16a) to or the device (1).