DE20020794U1 - Reinforcement device for the connection area of a scaffold - Google Patents

Description

LAY-059gDE J ;,·· *♦ · . .'

07 December 2000 *..·*.·* i .·* · &Ggr;

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DESCRIPTION

Reinforcing device for the connection area of a

Scaffolding 05

TECHNICAL AREA

The present invention relates to a reinforcement device for the connection area of a scaffold with vertical upright tubes, which have circumferential rosettes with recesses spaced in a grid in the longitudinal direction, and horizontally or diagonally running rod elements, which have a receiving head for connection to the rosette, which has a receiving slot open to the front for sliding the receiving head onto the rosette and a vertically running closed wedge slot into which a wedge can be releasably clamped as soon as a recess in the rosette, the receiving slot and the wedge slot have been brought into line.

STATE OF THE ART

Reinforcing devices for the connection area of a scaffold are not known.
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DESCRIPTION OF THE INVENTION

The present invention is based on the technical problem or task of providing a reinforcing device of the type mentioned at the outset which has a structurally simple design, can be manufactured economically, increases the load-bearing capacity of scaffolding and reduces the deformations occurring under load.

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The amplification device according to the invention is given by the features of independent claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.

The reinforcing device according to the invention of the type mentioned at the outset is accordingly characterized in that the reinforcing device has an elongated profile bar element, in the middle area of which a second bearing unit with a receiving head with a wedge is connected in the manner described above for the detachably clamping connection of the profile bar element to a rosette and in the end area of which a first bearing unit is connected, which can be pushed onto the bar elements connected to the rosette in a line to the left and right of the connection area and fixed in a clamping manner.

A particularly preferred embodiment, which allows particularly simple assembly or disassembly and at the same time ensures a reliable connection, is characterized in that the first bearing unit has a molded area which encloses the rod element in a form-fitting manner in some areas and on which an upper flange with an upper recess and a lower flange with a lower recess are molded on the top and bottom sides, protruding over the rod element, wherein a wedge can be driven into the upper and lower recess in a releasably clamped manner to fix the rod element.

If the rod elements are designed as round tube profiles, it is particularly advantageous to design the shape area of the first bearing unit to be semicircular in cross-section.

A particularly preferred embodiment, which ensures a particularly high reinforcement effect in the connection area,

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07 December 2000

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is characterized in that the profile bar element is designed as a hollow profile element, in particular with a square or circular cross-section.

Steel or aluminum can be considered as the material for the reinforcement device.

Further embodiments and advantages of the invention result from the features further listed in the claims and from the exemplary embodiment given below. The features of the claims can be combined with one another in any way, provided they do not obviously exclude one another.

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SHORT DESCRIPTION OF THE DRAWING

The invention and advantageous embodiments and further developments thereof are described and explained in more detail below using the example shown in the drawing. The features shown in the description and the drawing can be used individually or in groups in any combination according to the invention. They show:

Fig. 1 schematic detailed perspective view in the longitudinal direction of a connection area of a scaffold with a reinforcing device,

Fig. 2 schematic section through the connection area with reinforcement device according to section line I-I in Fig. 1 without sectional view of the horizontal rod element and

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07 December 2000

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Fig. 3 schematic section through the connection area with reinforcement device according to section II-II in Fig. 1.

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WAYS TO EXPORT THE INVENTION

Figure 1 shows a schematic perspective view of a section of a connection area of a scaffolding system. The starting point is a well-known modular scaffolding system known as the Layher all-round scaffolding system. The main focus here is on the connection technology. For this purpose, vertical upright tubes 2 0 are used, which have circumferential rosettes 24 spaced apart in the vertical longitudinal direction L in a grid pattern with closed recesses 2 6 distributed around the circumference in a grid pattern.

In the illustrated embodiment according to Figure 2, a horizontal rod element 22 is connected from the left and from the right via a receiving head 40, wherein both rod elements 22 are in alignment.

Each receiving head 40 has a receiving slot 46 that is open towards the rosette 24. This allows the receiving head 40 to be pushed onto the rosette 24. Vertically to the receiving slot 46, the receiving head 40 has a closed, continuous wedge slot 48, whereby a wedge 42 can be driven into the receiving head 40 from above in a releasably clamped manner as soon as the respective recess 26 of the rosette 24, the receiving slot 46 and the wedge slot 48 have been aligned in the respective position. This connection represents the well-known wedge lock connection that has proven itself over many years.

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In the connection area of the scaffolding, a reinforcement device 10 is also arranged, which has a profile bar element designed as a square hollow profile, which in the connected state is arranged parallel and spaced from the horizontal bar elements 22. In its middle area, the profile bar element 12 has a second bearing unit 18, which also has a receiving head 36, a wedge 38, a receiving slot 50 and a wedge slot 52. This makes it possible in a simple manner to connect the profile bar element 12 to the rosette 24 in the manner described above using the wedge lock technology.

In the respective end region, a first bearing unit 16 is connected to the profile bar element via a console element 14, which initially has a shaped region 34 with a semicircular cross-section, which can be pushed onto the respective horizontal bar element in a form-fitting manner in certain regions.

An upper flange 44.1 and a lower flange 44.2 are formed on the upper side of the respective free front end area of the mold area 34 and on the lower side. When pushed on, the flanges 44.1, 44.2 protrude beyond the rod element 22. In the upper flange 44.1 and in the lower flange 44.2 there is a closed recess 32.1 and 32.2, respectively, into which a wedge 28 can be driven in a releasably clamped manner, such that the rod element 22 is clamped within the mold area 34 of the first bearing unit 16.

The reinforcement device 10 shown can be manufactured economically, is easy to assemble or disassemble and brings a significant

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Increased load-bearing capacity and a significant reduction in the deformation of scaffolding. In particular, the area of slim railing scaffolding systems is a preferred area of application for the reinforcement device 10 shown in 05. However, the reinforcement device 10 can be used in any connection area of scaffolding rods where the connection is made using the proven wedge lock technology.

Claims (7)

1. Reinforcing device ( 10 ) for the connection area of a scaffold with vertical upright tubes ( 20 ) which have circumferential rosettes ( 24 ) with recesses ( 26 ) spaced apart in the longitudinal direction (L), and horizontally or diagonally extending rod elements ( 22 ) which have a receiving head ( 40 ) for connection to the rosette ( 24 ), which has a receiving slot ( 46 ) open to the front for sliding the receiving head ( 40 ) onto the rosette ( 24 ) and a vertically extending closed wedge slot ( 48 ) into which a wedge ( 42 ) can be driven in a releasably clamping manner as soon as a recess ( 26 ) of the rosette ( 24 ), the receiving slot ( 46 ) and the wedge slot ( 48 ) have been brought into line, characterized in that - the reinforcing device ( 10 ) has an elongated profile bar element ( 12 ), - in the middle area of which a second bearing unit ( 18 ) with receiving head ( 36 ) with wedge ( 38 ) is connected in the manner described above for the detachable clamping connection of the profile bar element ( 12 ) to a rosette ( 24 ) and - in the end area of which a first bearing unit ( 16 ) is connected, which can be pushed onto the rod elements ( 22 ) connected in alignment to the rosette ( 24 ) to the left and right of the connection area and can be fixed by clamping. 2. Reinforcing device according to claim 1, characterized in that the first bearing unit ( 16 ) has a molded area ( 34 ) which surrounds the rod element ( 22 ) in a form-fitting manner in regions and on which an upper flange ( 44.1 ) with an upper recess ( 32.1 ) and a lower flange ( 44.2 ) with a lower recess ( 32.2 ) are molded on the upper and lower sides, protruding over the rod element ( 22 ), wherein a wedge ( 28 ) can be driven in a releasably clamping manner into the upper and lower recesses ( 32.1 , 32.2 ) in order to fix the rod element ( 22 ). 3. Reinforcing device according to claim 2, characterized in that the molding region ( 34 ) has a substantially semicircular cross-sectional contour. 4. Reinforcing device according to one or more of the preceding claims, characterized in that the first bearing units ( 16 ) are each connected to the end region of the profile bar element ( 12 ) via a bracket element ( 14 ). 5. Reinforcing device according to one or more of the preceding claims, characterized in that the profile bar element ( 12 ) is designed as a hollow profile element, in particular with a square or circular cross-section. 6. Reinforcing device according to claim 2, characterized in that the wedges ( 28 ) are arranged captively on the first bearing unit ( 16 ). 7. Reinforcing device according to one or more of the preceding claims, characterized in that the reinforcing device ( 10 ) consists of steel or aluminum.