DE20107101U1 - Fall - Google Patents

Description

Haniel Building Materials Industry Sand-lime brick GmbH Franz-Haniel-Platz 6-8, D-47119 Duisburg

Fall

The invention relates to a lintel for building openings such as windows or doors, onto which at least one layer of lime-sand flat elements or parts thereof can be built, which have a groove running through their entire length in their downward-facing base.

The use of standard sand-lime flat elements has led to a great deal of rationalization in the construction industry. Due to the size of the flat elements and the ease of construction thanks to suitable machinery, the walls of a building can be erected in a relatively short time.

However, in the case of window or door openings, the standard dimensions of the elements create a problem when bricking up or walling up the window or door lintel.

In the past, such a lintel was cast in reinforced concrete on site, before the use of prefabricated reinforced concrete lintels was adopted. Lintels made of the same but reinforced material that match the sand-lime brick system are also known. However, matching partial elements sawn from standard elements still have to be bricked up next to and above the lintel in order to compensate for the height of the lintel.

The invention is therefore based on the object of designing a lintel of the type mentioned at the beginning so that it forms a stable closure of the wall opening, but at the same time does not particularly disturb the continuity of the individual plan element layers.

The invention solves this problem according to the characterizing part of claim 1 in that the lintel is a profiled sheet bridging the building opening on both sides, the width of which corresponds approximately to the thickness of the plan elements, the profiling being complementary to the profiling of the groove in the plan element.

The grooves in the planar elements originally have a different purpose than in the inventive procedure.

On the plane element surface opposite the groove side, recesses are provided into which plastic pins can be inserted, which cause an independent centering of the two superimposed plane element layers when a subsequent plane element is placed on top.

According to the invention, this continuous groove on the underside of the plan element is used to create a positive connection between the metal profile serving as a lintel and the layer of plan elements arranged above it.

The thickness of the metal profile or sheet metal strip can be compensated by a slightly wider longitudinal joint between the plane element layer on which the lintel rests and the layer above it.

According to claim 2, the lintel can consist of a sheet metal formed in a press.

However, according to claim 3, it can also consist of a flat sheet metal strip onto which the profile complementary to the groove profiling is welded.

According to a further alternative, this welded profile can also be formed piece by piece, which can save material.

The invention is illustrated and explained below with reference to drawings.

Show it:

Fig.l: schematically a wall with a door opening,

Fig. 2: Section along line A-A of Fig. 1,

Fig. 3: first alternative of a fall,

Fig. 4: second alternative of a fall.

In Fig. 1, a wall constructed from sand-lime flat elements is shown in a broken-off and schematic representation and is generally provided with the reference number 1.

The planar elements 2 are arranged offset from one another from layer to layer, so that the layers forming the door opening 3 are alternately formed from a standard planar element 2 and a so-called fitting stone 4. The door opening 3 is bridged by a lintel 5 which - as can be seen from Figures 3 and 4 - consists of a profiled sheet.

The profile of this sheet is complementary to the underside of the planar element 4, in which a groove 6 is provided that runs the entire length of the element. The thickness of the sheet 5 is compensated by a slightly thicker longitudinal joint 7 between the two planar element layers.

In Figures 2 and 3, the lintel 5 is realized as a profile formed in a press, while in Fig. 4, as a second alternative, the lintel 5 is composed of a flat sheet metal part 8 and the actual profile 9 welded onto it.

The profile shape in the drawings is schematic. Other shapes are conceivable.

Claims (4)

1. Lintel for building openings such as windows or doors, onto which at least one layer of lime-sand flat elements or parts thereof can be built up, which have a groove running through their entire length in their downward-facing base, characterized in that the lintel ( 5 ) is a profiled sheet bridging the building opening ( 3 ) on both sides, the width of which corresponds approximately to the thickness of the flat elements ( 2 , 4 ), the profiling being complementary to the profiling ( 9 ) of the groove ( 6 ) in the flat element ( 2 , 4 ). 2. Lintel according to claim 1, characterized in that the profiling ( 9 ) is formed into the sheet metal. 3. Lintel according to claim 1, characterized in that the profiling ( 9 ) is welded onto a flat sheet ( 8 ). 4. Lintel according to one of claims 1 to 3, characterized in that the profiling ( 9 ) is formed only piece by piece.