DE202011102646U1 - double carrier - Google Patents

Abstract

Elongated double beam, comprising an upper chord (3) and a lower chord (1), which are connected to one another via a web (2), characterized in that the lower chord (1) is wider than the upper chord (3).

Description

The invention relates to an elongate double carrier comprising a top flange ( 3 ) and a lower flange ( 1 ), which have a footbridge ( 2 ) are interconnected.

State of the art

The double girder is used to construct a substructure for the floor and façade and roof, whereby the substructure is mounted on the façade in the floor area of a house and on the roof as a counter rafter.

In known methods of this type double carriers are used, in which the upper belt and the lower belt have the same width. The connection between the upper and the lower chord is done in different ways. A disadvantage of all known methods is that the upper and lower belt have the same width and thickness.

The fact that in the known methods, the upper and the lower flange have the same width, it is not possible for the processor, with a mounting tool, such as a drill or a stapler, perpendicular to the double carrier to perform the installation in one operation, as a rule the distances between the upper and the lower flange are smaller than the size of the tool. This leads to the fact that the mechanical connecting means must be introduced obliquely into the lower flange and into the mounting base.

In a known method, in which the connection between the upper and the lower flange is made with a continuous wood-based panel and the upper and lower flange have the same width, it is disadvantageous that the dowels and screws are not perpendicular to the supporting outer wall, the floor or can be introduced to the roof. The dowels and the screws are not inserted at right angles to the double carrier, which makes assembly much more difficult.

Another option is to attach the double girder to the supporting wall, floor or roof with metal brackets. However, this leads to a significantly increased installation costs and additional costs due to the statically effective metal angle. In this method, no "one-man assembly" is possible.

In another method, the upper and lower chords also have the same width. The connection between the upper and the lower chord is made by a ladder-like construction. When mounting this system on a wooden wall as a supporting element, it is disadvantageous that the screws can not be introduced at right angles to the double carrier and the supporting wall.

When mounting on masonry or concrete, a right-angled mounting of the fasteners is necessary. To achieve this, the bottom flange must be pre-drilled. In the masonry or concrete then holes must be drilled, the distance must be matched exactly to the holes in the lower flange. In this complex type of installation is then worked with so-called push-through dowels, it is not a "one-man assembly" possible.

A disadvantage of all known methods with double carriers is that the thickness of the lower flange is about 60 mm. This requires that the fasteners must be sized accordingly large and usually an economical assembly with brackets is not possible.

Task and solution of the invention

Object of the invention: With the double support at the same time, first, a quick installation, secondly, a right-angled attachment of the fastener used for mounting the substructure on the ground, third, the ability to use short fasteners, fourthly, a way to create compartments for blow-in insulation and finally fifth One-man assembly can be achieved.

This object is achieved in a double carrier of the type mentioned according to the invention that the lower flange ( 1 ) wider than the upper strap ( 3 ) is trained.

Advantageous embodiments of the invention are set forth in the subclaims.

With this device, the possibility of an easily assembled substructure is created. It is suitable for creating insulation rooms for absorbing thermal insulation materials and at the same time serves as a construction for accommodating different clothing materials.

The device consists of a part. As a rule, this one part is composed of three components, a top chord, a bridge and a bottom chord. The lower flange is attached to the facade or on the floor. The lower chord has a greater width than the upper chord. Due to this broadening, easy assembly is possible. The bridge is designed in different widths, so that different sized Dämmräume can be designed.

• 1. Dadurch, dass der Untergurt breiter ausgebildet ist als der Obergurt, ist sowohl im Bereich der Fassade, des Bodens und des Daches als Kontersparren eine einfache Montage möglich.
• 2. Durch den verbreiterten Untergurt können bei der Montage die Schrauben/Dübel oder Klammern rechtwinklig zum Träger und zum tragenden Untergrund befestigt werden.
• 3. Die Verwendung eines dünneren Untergurtes als des Obergurtes führt dazu, dass mit geringen dimensionierten Befestigungsmitteln gearbeitet werden kann.
• 4. Die Minimierung des Querschnittes des Untergurtes führt zu einer Verbesserung der Wärmedämmung der Gesamtkonstruktion, da ein größerer Dämmraum vorhanden ist.

The invention achieves the following advantages:

• 1. The fact that the lower flange is wider than the upper flange, a simple installation is possible both in the area of the facade, the floor and the roof as counter rafters.
• 2. Due to the widened lower flange, the screws / dowels or clamps can be fastened at right angles to the carrier and the supporting surface during assembly.
• 3. The use of a thinner bottom chord than the top chord makes it possible to work with small dimensioned fasteners.
• 4. The minimization of the cross section of the lower flange leads to an improvement in the thermal insulation of the overall construction, as a larger Dämmraum exists.

The most important advantage is that by using a wider lower flange than the upper flange of the carrier with screws / dowels or brackets perpendicular to the supporting element, for. B. the outer wall, the rafters or the floor can be attached.

• • Schnelle Montage
• • Befestigung der Unterkonstruktion rechtwinklig zum Untergrund
• • Schlanke Querschnitte
• • Schaffung von Gefachen für Einblasdämmstoffe
• • „Ein-Mann-Montage”

The device is needed to provide a substructure for a garment, e.g. B. for the facade, the floor or the doubling of the roof (so-called counter rafters). According to the invention, it is achieved:

• • Fast installation
• • Fix the substructure at right angles to the ground
• • Slim cross sections
• • Creation of compartments for blow-in insulation
• • "One man assembly"

The devices of the prior art meet these requirements only partially.

Embodiment (s)

In the following, several embodiments of the invention will be described in more detail with reference to drawings. In all drawings, like reference numerals have the same meaning and therefore may be explained only once.

The 1 and 2 show a view of the elongate double carrier according to the invention from the front side in two different embodiments.

The 3 . 4 and 5 show various application examples, namely once for the production of a facade construction ( 3 ), for floor construction ( 4 ) and the roof structure with counter rafters ( 5 ).

The meaning of the individual parts in the figures is apparent from the following list of reference numerals.

LIST OF REFERENCE NUMBERS

1

Lower chord, wider than upper chord

2

web

3

upper chord

4

existing facade

5

front facade cladding

6

topsoil

7

existing unfinished soil

8th

roofing

9

existing rafters

Claims (3)

Elongated double carrier comprising a top flange ( 3 ) and a lower flange ( 1 ), which have a footbridge ( 2 ), characterized in that the lower chord ( 1 ) wider than the upper strap ( 3 ) is trained. Double carrier according to claim 1, characterized in that the lower belt is formed thinner than the upper belt. Double carrier according to claim 1, characterized in that it consists wholly or partly of a wood material.

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