DE7929024U1 - LENGTH ADJUSTABLE FORMWORK - Google Patents

Description

OMEGA Gerüst und Baugeräte GmbH.

Walk of joy 5

4600 village and 70

Length-adjustable formwork support

The invention relates to a length-adjustable formwork beam with continuously telescopically displaceable against one another in the longitudinal direction Trägertei ^T .en and means for locking the parts in their respective end position.

Such formwork girders are used when different distances between girder supports have to be bridged. For this purpose, formwork supports are known in which an extension support can be pulled out telescopically on one side from a support. However, the stability of these known formwork beams is not optimal, especially when greater loads occur and greater distances have to be bridged. Therefore, in the case of the known formwork supports, an extension is only possible over a relatively short distance. - ² ^

The object of the present invention is now to create a steel girder of the type mentioned at the outset, with which can be bridged with relatively large carrier distance differences with the same permissible load.

This object is achieved according to the invention in a generic

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W / w. - 4 -

-A-

moderate formwork carrier solved in that an extension carrier can be pushed out from a carrier on both sides which has a support that can be attached to the column head. In the formwork support according to the invention it is possible to extend a greater distance between two I. To bridge girder supports. The central part of the support, which is particularly subject to bending, is made up of braces and Reinforced lower straps.

^ - Advantageous embodiments of the shape of the formwork support are specified in the subclaims. Screws or wedges can be installed as locking, tensioning and lowering means that are used to move the extension beams | loosened relative to the carrier and tightened after adjusting the desired length, whereby the extension carrier be positively connected to the carrier. This screw connection ensures easy operation and secure attachment.

The invention is explained in more detail with the aid of the drawing. Show it:

(Ξ ** Fig. 1 an embodiment of the carrier in

Side view, and ^ _

Fig. 2 in plan view,

3 shows a section along the line A-B

Fig. 1,

FIG. 4 shows a section along the line C-P from FIG.

Fig. 5 is a cross section of another Aus

leadership form of the carrier. i

The length-adjustable formwork support, generally designated 1, consists of the support middle part 2, in which an extension support 3 is arranged on both sides so that it can be telescoped out and pushed in. The carrier 2 can have any shape, preferably a hat profile (FIGS. 3 to 5). The extension carrier 3 should have a hollow profile corresponding to the shape of the carrier, for example a triangular shape (FIGS. 3 and 4) or rectangular shape 3 ¹ (FIG. 5).

At the edges of the hat profile of the carrier middle section 2 cams 4 are arranged for a form-fitting connection with panels or cross members, not shown.

To limit the extension path of the extension beam 3 stops 5, 6 are provided on the carrier 2 or extension carrier 3.

To reinforce the carrier middle part 2 spaced and in pairs inwardly drawn struts 7 are arranged, wherein 7 screws 8 are installed as locking, tensioning and lowering means between individual strut pairs. By tightening the Screws 8 are the extension beam 3 with the 'i'räger middle part positively connected in the respective extended end position.

For better power transmission and better «edge protection is the pair of lower belts 9 with its ends on brackets 10 at the ends of the carrier 2 and at the lower ends of the Struts 7 rigidly attached. The course of the pair of lower chords 9 is such that in the middle of the girder, corresponding to the maximum the bending load of the beam 1, the greatest load capacity is achieved.

At the outer ends of the extension carrier 3 are Auf-

bearing 11 arranged in the corresponding supports 12 is hooked or hooked into the prop head 13) can. In this case, to avoid torsion of the longitudinal member 1, the support 11 on the extension member 3 is so designed forms that its upper edge in the suspended state on the support head 13, the top plate 14 of the same frictionally engages under (left part of Fig. 1).

The support 12 in the support head 13 has an upwardly directed nose 15 which is inserted into a corresponding recess 16 of the support 11 engages so that a hooking of the carrier 1 in the prop head is possible and the transmission of horizontal forces becomes possible.

In Fig. 1, the left extension beam 3 is on the shown full length, while the extension carrier 3 located on the right side in the shown in the retracted position and in the fully extended position is shown in dashed lines. It is basically possible to bridge the distance between two supports by using only one extension beam is pulled out. In terms of load, however, it is more favorable if to bridge the distance between two supports both extension carrier 3 by the same amount from the Carrier middle part 2 can be pulled out.

The invention is not intended to be restricted to the exemplary embodiment shown in the drawing, but rather to it include constructively modified versions.

Claims (1)

• · 9 COHÄXrSZ'k'-FLiOR'ACK PATENT AGENCY OFFICE SCHUMANNSTR. 97 D-4000 DÜSSSLDOHF Telephone: (0211) 683346 Telex: 08586513 cop d PATENT LAWYERS: DipL-Ing. W. COHAUSZ Dipl.-Ing. R. KNAUF ■ Dr.-Ing, Dipl.-Wirtsch.-Ing. A. GERBER · Dipl.-Ing. H. B. COHAUSZ Expectations: 1. Length-adjustable formwork beams with lengthways continuously telescopically displaceable carrier parts and means for locking the parts j in their respective end position, thereby g e - \ \ _ indicates that from one carrier (2) both \ seiti ""'s an extender (3} extendable jj, which has a support (11) that can be suspended from the support head (13).
ι \ 2. formwork support according to claim 1, characterized in that indicates that the carrier (2) and the desire support (3) have mutually corresponding hollow profiles in the form. 3. Formwork support according to claim 2, characterized in that the support 2 and the '· Extension beams (3) have a rectangular shape. j · '4. Formwork support according to claim 1, d adurch gei indicates that the carrier (2) is hat-shaped I sits and supports on the edges of the hat profile ¹ cams (4) are provided for panels or cross members. 5. Formwork support according to claim 4, characterized in that the extension beam (3) is a j has a triangular hollow profile and the carrier (2) spaced and in pairs inwardly drawn struts (7), ι wherein between individual strut pairs (7) as a locking, j Clamping and lowering means, screws (8) or wedges installed are. - 2 33 322 • t iit « -j 6. Formwork support according to one of claims 1 to 5, d a characterized in that the support (2) and stops (5, 6) are attached to the extension carrier (3), which limit the axial displacement of the carrier (2, 3) limit each other when taking off. 7. Formwork support according to one of claims 1 to 6, characterized in that a bending forces acting on the support (2) absorbing
Untergurtpaar (9) tilt the carrier (2) and the StTeben (7) is rigidly connected. 8. Formwork support according to one of claims 1 to 7, d a characterized in that the ends of the pair of lower chords (9) on a bracket (10) welded to the ends of the carrier (2), which is one of the hat profile of the
The carrier (2) has a corresponding shape, are attached. 9. Formwork support according to one of claims 1 to 7, characterized in that the support (11) is formed on the extension beam (3)
is that its upper edge is attached to the
Support head (13) engages under the top plate (14) of the support head (13) in a non-positive manner. marked by r ^ jj ^ jt-r - dalfdas each other Corresponding Auflagßflai "- tTT7i2) except in vertical RichturKj__wjLpkeTic [e 'forces also horizontal forces in each