EP2141307B1 - Anti-tipping device, ceiling formwork system with same, method for constructing a ceiling formwork and use of a tool for applying ceiling formwork supports - Google Patents

Description

Technical area

The invention relates to a tilt protection, a slab formwork system with a tilt protection and a method for the construction of a slab formwork and a use of a tool for placing ceiling formwork beams.

In the field of civil engineering slabs, on which is poured to form a building ceiling concrete, constructed by the fact that columns are placed in a regular grid, are placed on the carrier in a first direction, hereinafter referred to as "Jochträger", and on the yoke carrier carriers are placed in a second, usually perpendicular to the first direction direction, hereinafter referred to as "cross member". On the cross beams numerous formwork panels are placed to form the formwork.

State of the art

Such a slab formwork system is for example from the EP 0 678 637 A1 known. In this case, there is a certain risk of accidents at the time at which the formwork panels are placed on the cross member, and are usually nailed. It can namely on the formwork panels or individual sections of the switching skin act horizontal forces that can cause the underlying cross member to tip over.

Anti-tippers that have been proposed to prevent this tipping are usually nailed to the carriers, screwed or wedged and require an increased working position for attachment. Furthermore, they usually have to stay in place until the slab formwork is dismantled.

The DE 1 961 280 U discloses a clamping device for connecting two intersecting parts with tips which can be driven into one of these parts. DE 32 40 671 A describes a clamp connection for two intersecting beams with flanges.

The DE 103 59 761 A1 discloses a clamping device comprising a encompassing element, a pressure element and the distance of gripping element and pressure element delimiting clamping element by means of which it is possible to clamp two superposed carrier.

Presentation of the invention

The invention has for its object to provide a tilt protection for cross member of a slab formwork system, which is particularly easy to attach. Furthermore, this advantage should be realized in a slab formwork system with such a tilt protection, a method for erecting a slab formwork and a use of a tool for laying slab formworks.

The solution to this problem is done firstly by the anti-tip device described in claim 1.

Accordingly, the anti-tilt device according to the invention for at least one cross member of a slab formwork system in the field of construction to a Jochträger by Pivoting or moving the anti-tip device as a whole and in a state in which a formwork skin is attached to a plurality of cross members, detachable from the Jochträger. With regard to the attachment, in particular by pivoting, it has proven to be particularly advantageous that this requires no increased working position, but can be accomplished from the ground. For this purpose, the anti-tip device according to the invention can be plugged, for example, on the stem of a suitably long tool, hung on the Jochträger first and subsequently pivoted so far against a largely horizontal axis against this, that subsequently an intervention takes place, which causes an attachment in the vertical and horizontal directions , In other words, in the tilted securing device according to the invention in the mounted state, the only degree of freedom in the pivoting in the direction in which the attachment was made. As explained in more detail below, the anti-tilt device according to the invention is attached, for example, by suitable projections both in the horizontal direction, preferably in two horizontal directions, as well as in the vertical direction fixed to the Jochträger.

In this mounting position, the anti-tip device according to the invention can reliably prevent tipping over of cross members. For this purpose, the anti-tip device essentially has a receptacle in the form of a "fork" into which preferably one or two cross members can be inserted in their upright position. The recording is like this
measured so that the inserted cross member in the inserted position can not tip over. In this state, the formwork can then be attached to the cross members, without the risk that the cross member overturn. After attaching the formwork this can take over the stabilization against horizontal forces, and the anti-tippers are according to the invention in this state, by pivoting against the mounting direction, removable. This has the advantage that only a limited number of anti-tippers must be provided at a particular construction site, since these, while the ceiling is poured in a certain area, or the concrete hardens, can be removed, and at another point to Erection of a new slab formwork can be used. The anti-tilt device according to the invention thus offers an increase in safety in an easy-to-install and efficient manner.

For mounting the anti-tip device according to the invention at least one receptacle for an attachment tool is formed, which is handled from the ground. This may, as mentioned, be a tool with a sufficiently long handle, such as a carrier fork, which is otherwise used for laying slab formwork on supports or slab formworks of another direction.

Preferred developments are described in the further claims.

To attach the anti-tip device in the horizontal and / or vertical direction, it has proved to be advantageous to provide at least one attachment projection or hook, preferably in the form of a fold provided integrally on the anti-tilt device. The attachment projection provided for horizontal attachment can for example be hung on the upper strap of a yoke carrier at the beginning of the attachment process, and / or the attachment projection for vertical attachment can engage under the belt of the yoke carrier in the vertical direction after pivoting the anti-tip device in the final position. Here, the lower and / or upper belt can be attacked. Thus, the anti-tip device is secured by the last-described projection in the vertical direction against upward movement. The formation of an integrally provided fold on the anti-tip device offers the advantage of particularly simple manufacturability.

As mentioned, it has proven in first attempts to be particularly favorable and efficient when at least one Anbringvorsprung on a belt of the yoke carrier can be brought into engagement.

The Anbringvorsprünge, in particular the integrally provided on the anti-tip bends can be particularly easily formed when at least one Anbringvorsprung for horizontal attachment to an upper belt of a yoke carrier and / or at least one projection for vertical attachment to a lower belt of the yoke carrier can be brought into engagement , In this case, the Anbringvorsprünge, in particular in the form of integrally provided folds, can be provided at the ends of the anti-tip device, and are particularly simple.

Currently, two different embodiments are preferred for the anti-tip device, one of which is suitable for receiving a single cross member, and the other for receiving two cross members side by side.

For the complementary securing in the horizontal direction, for example, in a direction parallel to the extension of the yoke, to which the anti-tip device according to the invention can be attached, the formation of at least one Eindringvorsprungs is preferred, which penetrates in the attached state in the material of the yoke carrier, and thus slipping along prevented the yoke wearer. alternative This effect can also be ensured by friction-increasing measures, such as a particularly high roughness on areas of the anti-tip device, which are in contact with the yoke carrier when mounted.

The solution of the above object is further achieved by a slab formwork system with at least one anti-tip device, as described above, and the above-mentioned elements of a slab formwork system. Preferably, this also has a tool for attaching the anti-tip device to the yoke carrier, which is, for example, a carrier fork. This has, as already known, at one end a fork for laying slab formworks. In a novel way, the other end can be used to attach a tilt lock, to hook them subsequently to a yoke carrier, and to install by pivoting against this.

The object underlying the invention is further achieved by a method for erecting a slab formwork, in which first supports are placed, subsequently Jochträger are placed on this, then cross member are placed, now at least one anti-tip device is attached to at least one Jochträger such that the cross member taken in the at least one anti-tip device and secured against falling over, and finally a formwork skin is attached to the cross members. According to the anti-tippers are removed with attached formwork. It should be noted that the laying of the cross member on the Jochträger can be done at least partially after the attachment of Kippsicherungen. The attachment of Kippsicherungen is preferably carried out by pivoting or moving. Accordingly, this procedure is also preferred for removing the anti-tip devices. In a particularly advantageous manner, the anti-tippers can be mounted and / or removed from the ground in the context of the method according to the invention.

The invention further proposes a novel use of a tool for laying slab formworks, which consists in that it is used for attaching at least one anti-tilt device to a yoke support by pivoting or sliding. For this purpose, advantageously the previously unused end of the "stem" can be used, at the "used" end, for example, is a fork for handling slab formworks. Thus, the tool used in a novel way is advantageously reversed and used in the inverted orientation for the mounting of anti-tip devices.

Brief description of the drawings

Fig. 1

eine perspektivische Ansicht einer erfindungsgemäßen Kippsicherung in einer ersten Ausführungsform im angebrachten Zustand; und

Fig. 2

eine perspektivische Ansicht der erfindungsgemäßen Kippsicherung in einer zweiten Ausführungsform.

Hereinafter, preferred embodiments of the invention with reference to the drawings are explained in more detail by way of example. Show it:

Fig. 1

a perspective view of a tilt protection according to the invention in a first embodiment in the attached state; and

Fig. 2

a perspective view of the anti-tip device according to the invention in a second embodiment.

Detailed description of preferred embodiments of the invention

In Fig. 1 are shown as components of a slab formwork system, a Jochträger 7 and a cross member 8 placed thereon. Several such Jochträger 7 are usually placed on a suitable grid of (not shown) supports. Further, to a plurality of cross member 8 for Training the formwork numerous, also not shown, formwork panels placed. To secure the cross member 8 against tipping over the anti-tip device 6 according to the invention is provided. This has a receptacle for the cross member 8, which is dimensioned in the embodiment shown so that a single cross member 8 in the upright, "standing" state between two prongs 1 can be arranged. In the embodiment shown, the tines 1 are provided as elbows, which are attached to the body 9 of the anti-tip device 6.

The fork-shaped design of the anti-tip device 6 is also provided in the region of the body 9 by the horizontal support 2, with which the anti-tip device 6 is placed on the Jochträger 7, is divided. This results in a gap in which the cross member 8 can be arranged such that it rests on the Jochträger 7 (and not on the anti-tip device 6). Among other things, for this reason, the anti-tip device 6, as explained in more detail below, can be removed from the yoke carrier 7 even in a state in which the cross member 8 is placed. In order to carry out the described movements, the "fork" of the anti-tip device 6 extends a little into the region of the vertical support 11.

In a vertical direction, the attachment of the anti-tip device 6 to the Jochträger 7 thus carried by the horizontal support 2. For horizontal mounting in a direction parallel to the longitudinal extent of the Jochträgers 7 a notch 3 are provided in the embodiment shown on each part of the horizontal support 2 , These are particularly easy to produce, that they are so integrally disengaged from the material of the anti-tip device 6 in the horizontal support 2, that they protrude a little in the direction of the yoke 7. In the attached state of Kippsicherung 6 penetrate this in the material of the yoke 7 and thereby cause the described fuse. It should be noted that this protection against slipping in a direction parallel to the longitudinal extent of the yoke carrier 7 can also be effected by suitable teeth and / or cutting.

The attachment of the anti-tip device 6 to the Jochträger 7 in the horizontal direction perpendicular to the longitudinal extension of the Jochträgers 7 carried by Anbringvorsprünge 10, which are respectively provided at the free ends of the (divided) horizontal support 2 and better in Fig. 2 are recognizable. As part of the attachment of the anti-tip device 6 to the Jochträger 7 this is mounted with the attachment projections 10 described in a position on the Jochträger 7, in which they are opposite to the in Fig. 1 shown rotated a little in the clockwise direction. Subsequently, the anti-tip device 6 is pivoted against the Jochträger 7 so that the horizontal supports 2 come to rest on the upper surface of the yoke carrier 7, and penetrate in the embodiment shown, the Eindringvorsprünge 3 in the material of the yoke. The tilting of the anti-tip device 6 against the yoke carrier 7 takes place until the vertical support 11 rests against the side surfaces of the straps 12, 13 of the yoke carrier, and a further Anbringvorsprung 4 engages under the lower belt 13 of the yoke carrier 7 in the embodiment shown. This is done in the attached state, a backup against movement in a vertical upward direction. Similar to the Anbringvorsprünge 10 and the attachment projection 4 is provided in a particularly simple and efficient manner as a single fold at the end of the anti-tip device 6, as particularly well in Fig. 2 can be seen. In other words, the attachment projection 10 is in the attached state of the anti-tip device 6 on a side surface of the upper belt 12 of the yoke carrier 7, and the distance between this Anbringvorsprung 10 and the vertical support 11 substantially corresponds to the width of the yoke 7. In a similar way the attachment projection 4 on the underside of the yoke carrier 7, and the distance between this attachment projection 4 and the horizontal support 2 substantially corresponds to the "height" of the yoke carrier 7.

The attachment described above can be accomplished in the embodiment shown that a suitably long tool is inserted into a provided on the anti-tip device 6 receptacle 5, in other words, the anti-tip device 6 is attached to the tool described. The receptacle 5 is in the embodiment shown by an attached to the body 9 of the anti-tip device 6 square tube 14 with a "lid" 15. In the plugged on the tool state, the anti-tip device 6 can be brought in an inclined orientation to the Jochträger 6, and hung with the Anbringvorsprüngen 10 and subsequently in the in Fig. 1 be pivoted position shown. Subsequently, the cross member 8 can be placed. It should be noted that the anti-tip device can also be mounted in a state in which the cross member 8 already rests. Furthermore, this attachment can be done in an advantageous manner, by means of a suitable tool, from the ground. Advantageously, the Kippsicherungen 6 can then, when the numerous cross member 8 are placed, and secured by the attached formwork skin in the horizontal direction, removed and used elsewhere. This removal takes place by insertion of the tool in the receptacle 5 from the bottom, a pivoting in the clockwise direction and a "unhooking" of the Anbringvorsprünge 10 of the yoke 7.

In Fig. 2 is that embodiment shown in which the space between the two prongs 1 is adapted for receiving two cross members side by side. Apart from that, the embodiment of Fig. 2 those of Fig. 1 , and the symmetry with respect to the above with reference to the Fig. 1 explained Features of the tilt protection 6 is easy to recognize. The tines 1 may also act as stabilizers, and the attachment projections 4 and 10 may also be referred to as retention projections or extensions.

Claims (12)

1. Anti-tilt means (6) for at least one crossbeam (8) of a floor formwork system in the field of civil engineering, characterised in that it comprises at least one receptacle in the form of a fork and is designed such that it can be attached to a main beam (7) by pivoting or shifting the anti-tilt means (6) as a whole and, in a state in which the crossbeam (8) is placed on the main beam (7) and a formwork shell is attached to a plurality of crossbeams (8), can be removed from the main beam (7), at least one receptacle (5) being provided for an attachment tool that can be operated from the ground.
2. Anti-tilt means according to claim 1, characterised in that at least one attachment projection (10, 4), preferably in the form of an integral bent edge, is provided for attaching the anti-tilt means (6) in the horizontal and/or vertical direction.
3. Anti-tilt means according to claim 2, characterised in that at least one attachment projection (10, 4) can be brought into engagement with a flange (12, 13) of the main beam (7).
4. Anti-tilt means according to claim 3, characterised in that an attachment projection (10) for horizontal attachment can be brought into engagement with an upper flange (12) and/or an attachment projection (4) for vertical attachment can be brought into engagement with a lower flange (13) of the main beam (7).
5. Anti-tilt means according to at least one of the preceding claims, characterised in that the anti-tilt means (6) is suitable for receiving one or two crossbeams (8).
6. Anti-tilt means according to at least one of the preceding claims, characterised in that at least one penetration projection (3) is provided which penetrates the material of the main beam (7) when the anti-tilt means (6) is attached.
7. Floor formwork system in the field of civil engineering, comprising at least one anti-tilt means (6) according to at least one of the preceding claims, preferably further comprising a tool which can be inserted into a receptacle (5) provided on the anti-tilt means (6).
8. Method for constructing a floor formwork in the field of civil engineering, comprising the following steps:

   - putting up a plurality of supports;

   - placing a plurality of main beams (7) on the supports;

   - placing a plurality of crossbeams (8) on the main beams (7);

   - attaching at least one anti-tilt means (6) to at least one main beam (7) such that the anti-tilt means (6) prevents at least one crossbeam (8) from tipping over;

   - attaching a formwork shell to the crossbeams (8);
   and

   - removing at least one anti-tilt means (6) when the formwork shell is attached.
9. Method according to claim 8, characterised in that the anti-tilt means (6) as a whole can be attached and/or removed by being pivoted about a largely horizontal axis or by being shifted.
10. Method according to either claim 8 or claim 9, characterised in that the at least one anti-tilt means (6) is attached and/or removed from the ground.
11. Use of a tool for placing floor formwork supports (7, 8) for attaching an anti-tilt means (6) according to any of claims 1-6 to a main beam (7) as a whole by pivoting or shifting.
12. Use according to claim 11, characterised in that the tool is reversed from an orientation in which it is used to manipulate floor formwork supports (7, 8) in order to attach the anti-tilt means (6).

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