EP2532799A1 - Metal girder and its use - Google Patents

Metal girder and its use Download PDF

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Publication number
EP2532799A1
EP2532799A1 EP11004788A EP11004788A EP2532799A1 EP 2532799 A1 EP2532799 A1 EP 2532799A1 EP 11004788 A EP11004788 A EP 11004788A EP 11004788 A EP11004788 A EP 11004788A EP 2532799 A1 EP2532799 A1 EP 2532799A1
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EP
European Patent Office
Prior art keywords
sheet
metal
pressed
web
reinforcing ribs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11004788A
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German (de)
French (fr)
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EP2532799B1 (en
Inventor
Karl Wenig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knauf Ceiling Solutions GmbH and Co KG
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Knauf AMF GmbH and Co KG
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Application filed by Knauf AMF GmbH and Co KG filed Critical Knauf AMF GmbH and Co KG
Priority to PL11004788T priority Critical patent/PL2532799T3/en
Priority to EP20110004788 priority patent/EP2532799B1/en
Priority to ES11004788.3T priority patent/ES2539916T3/en
Publication of EP2532799A1 publication Critical patent/EP2532799A1/en
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Publication of EP2532799B1 publication Critical patent/EP2532799B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
    • E04B9/067—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section
    • E04B9/068—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section with double web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/035—Joining superposed plates by slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars

Definitions

  • the invention relates to a metal support for a ceiling substructure with a T-profile of a double sheet, wherein the metal support is characterized in that in the web region reinforcing ribs are pressed, with the proviso that the reinforcing ribs, starting from the outside of a first sheet in the direction of the second sheet and are pressed from the outside of the second sheet in the direction of the first sheet.
  • the invention further relates to the use of such a metal support for metallic ceiling substructures as the main and / or cross member, wherein the flange points in the direction of the interior of the room.
  • Metal supports of the generic type for ceiling substructures are known in the art. That's how it describes GB 2 456 328 A a corresponding metal carrier, which is designed in the form of a T-profile is.
  • the metal support according to the British application is also formed from a double sheet and has at the web-side end of a hollow profile.
  • the linear hollow profiles are formed by the double plate and are present substantially over the entire length of the metal carrier.
  • the metal carrier in the web area with reinforcing ribs ("stitching"), wherein the reinforcing ribs have been pressed both from the outside of the first sheet in the direction of the second sheet and from the outside of the second sheet in the direction of the first sheet are.
  • the core of the invention is thus a "double-sided stitching".
  • the metal carrier is designed so that the pressed-in reinforcing ribs ("stitching") parallel to the flange in line shape, preferably over the entire length of the metal carrier, are pressed.
  • the invention in this case comprises embodiments in which the press-ins are alternately, i. from one side and the other side, as well as embodiments in which there are several pressings successively from one side and then again several pressings in succession from the other side.
  • the reinforcing ribs alternate in a line shape in each case, i. an injection from the outside of the first sheet in the direction of the second sheet, and then the next press-in from the other side of the sheet are introduced.
  • the distances between the pressings can also be variable.
  • a further preferred embodiment then provides that the reinforcing ribs are pressed into two or three lines arranged parallel to the flange. Within the respective parallel lines with the "stitching", the number of impressions that are pressed in from the first side in the direction of the second side and vice versa may vary.
  • the invention also includes embodiments in such a way that the reinforcing ribs are pressed in line form starting from the outside of one of the sheets and are pressed in parallel in a second line arranged therefrom, starting from the outside of the other sheet.
  • the reinforcing ribs of the two lines are arranged on a gap are, that is, a press-fitting, which is pressed from one side in the direction of the other sheet, is offset from the other press-in, which has been introduced from the other side, arranged.
  • the pressed-in reinforcing ribs are arranged parallel to the flange in line form in the vicinity of the flange.
  • a further preferred embodiment then provides that reinforcing ribs are provided in a second line parallel thereto, wherein these reinforcing ribs are then provided at the web-side end.
  • the impressions are preferably provided in the last third of the web area.
  • the two-sided "stitching" can not be distributed in line form, but distributed over the surfaces of the web area. Also for this embodiment, the number of press-in is variable.
  • the reinforcing ribs are introduced by a two-stage process in the web.
  • a tab is cut free from the material.
  • the second process step is then carried out by a stamp pressing, so that a flow of the material of the tab takes place. By this pressing is then ensured that the tab can not be pushed back into the recess.
  • the invention also includes embodiments in which the compression is produced by a one-step process, i. In one operation, the tab is cut free and pressed.
  • the compression is preferably produced by a single punch or by a double punch in a rectangular shape.
  • the long sides of the rectangle are in the range of 2 to 8 mm and the short sides are preferably 0.1 to 1.5 mm long.
  • a line-shaped reinforcing profile is also provided.
  • This linear reinforcing profile can be formed as a hollow profile by the two double sheets and is preferably arranged parallel to the line-shaped "stitching".
  • a preferred embodiment provides that the linear reinforcing profile is arranged between two line-shaped pressings.
  • the metal carriers according to the invention may additionally, as is known per se from the prior art, still have openings which are provided for latching the metal carriers to one another.
  • the metal carriers according to the invention may then also have connectors, which are arranged on the front side at the respective ends of the metal carrier, which are provided to lock the metal carrier with each other through the opening.
  • the metal carriers according to the invention may be metal carriers of a length of 50 to 400 cm, depending on the application. Such metal beams can be used for ceiling substructures, which then act either as a main or as a cross member.
  • the selection of the length of the metal support depends of course on the application, i. depending on whether it is a main or a cross member.
  • the T-profile of the metal carrier preferably has a web height in the web region between 1 and 8 cm.
  • the material of the metallic supports is preferably a steel sheet of a cold-rolled strip.
  • the steel grades include integrated carbon steels with carbon mass fractions up to 1%, a preferred steel sheet is DX 51 Z 100.
  • the metal support according to the invention is as described above particularly suitable for metallic ceiling substructures as the main and / or cross member, wherein the flange points in the direction of the interior of the room.
  • FIG. 1 is a cross-section of an inventive metal carrier 1 shown in the form of an inverse T-profile.
  • the metal carrier according to the embodiment according to FIG. 1 is formed of a double sheet 3, 4 and has at its web-end a hollow profile 5, which has been formed by the two double sheets.
  • FIG. 1 is now seen in cross-section that the pressings (stitching) 6, 6 'have been introduced from both sides in the web portion 2 of the metal carrier 1.
  • a first line shape has been formed at the flange end, in which case the press-in 6 from one side, ie from the outside of the sheet 3, have been introduced, whereas the press-in 6 'have been pressed from the outside of the sheet 4.
  • the embodiment according to FIG. 1 thus has a double-sided stitching, each with two lines are provided with alternating pressings.
  • FIG. 2 now corresponds to the one after FIG. 1
  • the indentations 6 have been introduced at the web-side end only from one side, ie only from the outside of the sheet 3.
  • the indentations 6, 6 ' which are arranged at the flange end, always from the outer side. 3 (Press 6) and from the outside 4 (press 6 ') have been made.
  • FIG. 3 a further embodiment is shown by the embodiment FIG. 2 emanating and differs in that between the flange-side line-shaped press-in and the web-side linear press-in nor a hollow section 8, which is formed by the two sheets 3, 4, is arranged.
  • This achieves a further improvement in rigidity and distortion.
  • the invention includes all embodiments provided that at least a portion of the impressions have been made from one side of the first sheet and another portion of the impressions from the outside of the other sheet.
  • FIG. 4 is now a perspective view of an inventive metal support 1 shown, which illustrates that the press-in 6, 6 ⁇ in line form and thereby alternately formed on the flange-side end of the web portion 2.
  • the press-6 has been made from the non-visible page in the page shown.
  • the invention of course includes all embodiments in which, for example, then two or three pressings have been made in the same direction and then two or three pressings have been carried out from the other side.
  • the invention also includes embodiments in which, for example, in one line only 20% or 30% of the impressions have been made in one direction and correspondingly 80% or 70% of the impressions from the other direction.
  • FIG. 5 is now again a perspective view of an inventive metal carrier 1 is shown, in which the press-in 6, 6 'are executed in two lines, on the one hand in a first line, which is formed on the flange side, and in a second line, which provided at the web end is.
  • the perspective view of the metal carrier after FIG. 5 corresponds to the representation of the metal carrier in cross section FIG. 1 , From the illustration to FIG. 5 It is also clear that the distances of the respective impressions can be chosen arbitrarily. In the embodiment of the FIG. 5 are provided between the press-in, which are provided at the web-side end below the hollow section 5, much greater distances than for the press-in, the flange-side end are arranged. Also, the distances of such impressions may vary within a line.
  • FIGS. 6 and 7 is shown in fragmentary form in the form of an enlarged view in a longitudinal section, as the pressing 6 or 6 'by a single punch ( FIG. 7 ) and by a double stamp ( FIG. 6 ) has been realized.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The metal support (1) has double-sheet forming T-section such that the sheets are arranged against each other in web area (2). A hollow section (5) is formed at web-side end of the double sheet. The reinforcing ribs (6,6') are pressed in web area such that reinforcing ribs from one sheet are pressed into another sheet and vice versa.

Description

Die Erfindung betrifft einen Metallträger für eine Deckenunterkonstruktion mit einem T-Profil aus einem Doppelblech, wobei sich der Metallträger dadurch auszeichnet, dass im Stegbereich Verstärkungsrippen eingepresst sind, mit der Maßgabe, dass die Verstärkungsrippen ausgehend von der Außenseite eines ersten Bleches in Richtung des zweiten Bleches und von der Außenseite des zweiten Bleches in Richtung des ersten Bleches eingepresst sind. Die Erfindung betrifft weiterhin die Verwendung eines derartigen Metallträgers für metallische Deckenunterkonstruktionen als Hauptund/oder Querträger, wobei der Flansch in Richtung des Rauminneren zeigt.The invention relates to a metal support for a ceiling substructure with a T-profile of a double sheet, wherein the metal support is characterized in that in the web region reinforcing ribs are pressed, with the proviso that the reinforcing ribs, starting from the outside of a first sheet in the direction of the second sheet and are pressed from the outside of the second sheet in the direction of the first sheet. The invention further relates to the use of such a metal support for metallic ceiling substructures as the main and / or cross member, wherein the flange points in the direction of the interior of the room.

Metallträger der gattungsgemäßen Art für Deckenunterkonstruktionen sind im Stand der Technik bekannt. So beschreibt die GB 2 456 328 A einen entsprechenden Metallträger, der in Form eines T-Profils ausgebildet ist. Der Metallträger nach der britischen Anmeldung ist ebenfalls aus einem Doppelblech gebildet und besitzt am stegseitigen Ende ein Hohlprofil. Im Stegbereich des Metallträgers nach der britischen Anmeldung 2 456 328 A sind linienförmige Hohlprofile ausgebildet. Die linienförmigen Hohlprofile sind dabei durch das Doppelblech gebildet und sind im Wesentlichen über die gesamte Länge des Metallträgers vorhanden. In der vorstehend erwähnten britischen Anmeldung wird auch bereits vorgeschlagen, dass mehrere derartiger linienförmiger Hohlprofile parallel zueinander angeordnet sein können.Metal supports of the generic type for ceiling substructures are known in the art. That's how it describes GB 2 456 328 A a corresponding metal carrier, which is designed in the form of a T-profile is. The metal support according to the British application is also formed from a double sheet and has at the web-side end of a hollow profile. In the web area of the metal carrier according to the British application 2 456 328 A are linear hollow sections formed. The linear hollow profiles are formed by the double plate and are present substantially over the entire length of the metal carrier. In the abovementioned British application, it is also already proposed that a plurality of such line-shaped hollow profiles can be arranged parallel to one another.

Weiterhin ist aus der US 6,199,343 B1 ein Metallträger für eine Deckenunterkonstruktion bekannt, der ebenfalls in Form eines T-Profils ausgebildet ist. Bei den dort gezeigten Ausführungsformen des Metallträgers ist vorgesehen, dass im Stegbereich Einpressungen 55, sog. "Stitchings", angeordnet sind. Das "Stitching" wird durch Einpressen eines Stempels von einer Seite in Richtung der anderen Seite erreicht, so dass ein einseitiges "Stitching" resultiert.Furthermore, from the US 6,199,343 B1 a metal support for a ceiling substructure known, which is also in the form of a T-profile. In the embodiments of the metal carrier shown there, it is provided that press-in connections 55, so-called "stitching", are arranged in the web region. The stitching is achieved by pressing a punch from one side towards the other side, resulting in one-sided stitching.

Es hat sich nun gezeigt, dass sowohl das einseitige "Stitching", wie es in der US 6,199,343 B1 vorgeschlagen wird, als auch das Vorsehen von Hohlprofilen nach der GB 2 456 328 A im Stegbereich für die Stabilitätsanforderungen von Metallträgern für Deckenunterkonstruktionen nicht ausreichend ist. Es hat sich nämlich herausgestellt, dass derartige Metallträger insbesondere bei einem für die Zulassung (nach DIN-EN 1363 Teil 1) erforderlichen Brandtest, bei dem Temperaturen bis maximal 1200 °C für 360 Minuten vorliegen, nicht hinreichend stabil sind. Offensichtlich kommt es bei derart hohen Temperaturen zu einem Verzug der Metallträger, was letztlich dazu führen kann, dass derartige Deckenunterkonstruktionen dann nicht mehr eine hinreichende Stabilität haben, so dass die Gefahr besteht, dass unter diesen Bedingungen Teile aus der Deckenunterkonstruktion herausbrechen können.It has now been shown that both the one-sided "stitching" as it is in the US 6,199,343 B1 is proposed, as well as the provision of hollow profiles after the GB 2 456 328 A in the bridge area is not sufficient for the stability requirements of metal beams for ceiling substructures. It has in fact been found that such metal substrates are not sufficiently stable, in particular in the case of a fire test required for the approval (according to DIN-EN 1363 part 1), in which temperatures up to a maximum of 1200 ° C. for 360 minutes are present. Obviously at such high temperatures warping of the metal supports occurs, which can ultimately lead to that such ceiling substructures then no longer have sufficient stability, so that there is a risk that under these conditions parts can break out of the ceiling substructure.

Ausgehend hiervon ist es daher die Aufgabe der vorliegenden Erfindung, einen Metallträger vorzuschlagen, der derart ausgebildet ist, dass er auch einem Feuerwiderstand bis maximal 1200 °C (nach DIN-EN 1363 Teil 1) ohne wesentlichen Verzug standhält.Proceeding from this, it is therefore an object of the present invention to propose a metal support which is designed such that it withstands a fire resistance up to a maximum of 1200 ° C (according to DIN-EN 1363 Part 1) without significant delay.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst. Die Unteransprüche zeigen vorteilhafte Weiterbildungen auf.This object is solved by the characterizing features of claim 1. The dependent claims show advantageous developments.

Erfindungsgemäß wird somit vorgeschlagen, den Metallträger im Stegbereich mit Verstärkungsrippen ("Stitching") zu versehen, wobei die Verstärkungsrippen sowohl ausgehend von der Außenseite des ersten Bleches in Richtung des zweiten Bleches als auch von der Außenseite des zweiten Bleches in Richtung des ersten Bleches eingepresst worden sind. Kern der Erfindung ist somit ein "doppelseitiges Stitching".According to the invention it is thus proposed to provide the metal carrier in the web area with reinforcing ribs ("stitching"), wherein the reinforcing ribs have been pressed both from the outside of the first sheet in the direction of the second sheet and from the outside of the second sheet in the direction of the first sheet are. The core of the invention is thus a "double-sided stitching".

Dadurch, dass nun die Verstärkungsrippen nicht nur von einer Seite in den Stegbereich eingepresst worden sind, sondern von zwei Seiten, kommt es dazu, dass der Metallträger auch unter extremen Bedingungen, wie bei einem Feuerwiderstand von bis zu 1200 °C, keinen Verzug zeigen. Durch das "doppelseitige Stitching" wird offensichtlich das Gefüge des Metallträgers im Stegbereich so positiv beeinflusst, dass sich nicht die aus dem Stand der Technik bekannten Nachteile in Bezug auf den Verzug und die Versteifungsfestigkeit einstellen.The fact that now the reinforcing ribs have been pressed not only from one side into the web area, but from two sides, it comes to the fact that the metal support, even under extreme conditions, such as a fire resistance of up to 1200 ° C, no distortion. By "double-sided stitching" obviously the structure of the metal support in the web area is so positively influenced that do not adjust the known from the prior art disadvantages in terms of the distortion and the stiffening resistance.

Bevorzugt ist der Metallträger dabei so ausgebildet, dass die eingepressten Verstärkungsrippen ("Stitching") parallel zum Flansch in Linienform, bevorzugt über die gesamte Länge des Metallträgers, eingepresst sind. Die Erfindung umfasst hierbei Ausführungsformen, bei denen die Einpressungen jeweils abwechselnd, d.h. von einer Seite und der anderen Seite, eingepresst sind, wie auch Ausführungsformen, bei denen mehrere Einpressungen nacheinander von einer Seite und dann wiederum mehrere Einpressungen nacheinander von der anderen Seite vorliegen. Besonders bevorzugt ist es dabei, wenn die Verstärkungsrippen in Linienform jeweils abwechselnd, d.h. eine Einpressung von der Außenseite des ersten Bleches in Richtung des zweiten Bleches, und dann die nächste Einpressung von der anderen Seite des Bleches eingebracht sind. Die Abstände zwischen den Verpressungen können auch variabel sein.Preferably, the metal carrier is designed so that the pressed-in reinforcing ribs ("stitching") parallel to the flange in line shape, preferably over the entire length of the metal carrier, are pressed. The invention in this case comprises embodiments in which the press-ins are alternately, i. from one side and the other side, as well as embodiments in which there are several pressings successively from one side and then again several pressings in succession from the other side. In this case, it is particularly preferred if the reinforcing ribs alternate in a line shape in each case, i. an injection from the outside of the first sheet in the direction of the second sheet, and then the next press-in from the other side of the sheet are introduced. The distances between the pressings can also be variable.

Eine weitere bevorzugte Ausführungsform sieht dann vor, dass die Verstärkungsrippen in zwei oder drei parallel zum Flansch angeordneten Linien eingepresst sind. Innerhalb der jeweiligen parallel angeordneten Linien mit den Einpressungen ("Stitching") kann die Anzahl der Einpressungen, die von der ersten Seite in Richtung der zweiten Seite und umgekehrt eingepresst sind, variieren.A further preferred embodiment then provides that the reinforcing ribs are pressed into two or three lines arranged parallel to the flange. Within the respective parallel lines with the "stitching", the number of impressions that are pressed in from the first side in the direction of the second side and vice versa may vary.

Die Erfindung umfasst selbstverständlich auch Ausführungsformen, in der Weise, dass die Verstärkungsrippen in Linienform von der Außenseite eines der Bleche ausgehend eingepresst und parallel in einer hierzu angeordneten zweiten Linie von der Außenseite des anderen Bleches ausgehend eingepresst sind. Für diese Ausführungsform kann auch vorgesehen sein, dass die Verstärkungsrippen der beiden Linien auf Lücke angeordnet sind, d.h. die eine Einpressung, die von der einen Seite in Richtung des anderen Bleches eingepresst ist, ist versetzt zur anderen Einpressung, die von der anderen Seite aus eingebracht worden ist, angeordnet.Of course, the invention also includes embodiments in such a way that the reinforcing ribs are pressed in line form starting from the outside of one of the sheets and are pressed in parallel in a second line arranged therefrom, starting from the outside of the other sheet. For this embodiment, it can also be provided that the reinforcing ribs of the two lines are arranged on a gap are, that is, a press-fitting, which is pressed from one side in the direction of the other sheet, is offset from the other press-in, which has been introduced from the other side, arranged.

Bei dem Metallträger der Erfindung ist es dabei bevorzugt, wenn die eingepressten Verstärkungsrippen parallel zum Flansch in Linienform im flanschnahen Bereich angeordnet sind.In the case of the metal carrier of the invention, it is preferred if the pressed-in reinforcing ribs are arranged parallel to the flange in line form in the vicinity of the flange.

Eine weitere bevorzugte Ausführungsform sieht dann vor, dass parallel hierzu Verstärkungsrippen in einer zweiten Linie vorgesehen sind, wobei diese Verstärkungsrippen dann am stegseitigen Ende vorgesehen sind.A further preferred embodiment then provides that reinforcing ribs are provided in a second line parallel thereto, wherein these reinforcing ribs are then provided at the web-side end.

Die Einpressungen sind dabei bevorzugt im letzten Drittel des Stegbereiches vorgesehen. Das beidseitige "Stitching" kann auch nicht in Linienform, sondern über die Flächen des Stegbereichs verteilt vorliegen. Auch für diese Ausführungsform ist die Anzahl der Einpressungen variabel.The impressions are preferably provided in the last third of the web area. The two-sided "stitching" can not be distributed in line form, but distributed over the surfaces of the web area. Also for this embodiment, the number of press-in is variable.

Bevorzugt werden dabei die Verstärkungsrippen durch einen zweistufigen Prozess in den Steg eingebracht. Im ersten Prozessschritt wird dabei eine Lasche aus dem Material freigeschnitten. Im zweiten Prozessschritt erfolgt dann durch einen Stempel ein Verpressen, so dass ein Fließen des Materials der Lasche erfolgt. Durch dieses Verpressen wird dann sichergestellt, dass die Lasche nicht wieder zurück in die Aussparung gedrückt werden kann.Preferably, the reinforcing ribs are introduced by a two-stage process in the web. In the first process step, a tab is cut free from the material. In the second process step is then carried out by a stamp pressing, so that a flow of the material of the tab takes place. By this pressing is then ensured that the tab can not be pushed back into the recess.

Die Erfindung umfasst selbstverständlich auch Ausführungsformen, bei denen die Verpressung durch einen einstufigen Prozess hergestellt wird, d.h. in einem Arbeitsgang wird die Lasche freigeschnitten und verpresst.Of course, the invention also includes embodiments in which the compression is produced by a one-step process, i. In one operation, the tab is cut free and pressed.

Bevorzugt wird die Verpressung dabei durch einen Einfachstempel oder auch durch einen Doppelstempel bevorzugt in Rechteckform hergestellt. Die langen Seiten des Rechtecks liegen im Bereich von 2 bis 8 mm und die kurzen Seiten sind bevorzugt 0,1 bis 1,5 mm lang.Preferably, the compression is preferably produced by a single punch or by a double punch in a rectangular shape. The long sides of the rectangle are in the range of 2 to 8 mm and the short sides are preferably 0.1 to 1.5 mm long.

Zur weiteren Verbesserung der Versteifungsfähigkeit und zur Verbesserung des Verzugs kann in dem erfindungsgemäßen Metallträger noch vorgesehen sein, dass zusätzlich zum beidseitigen "Stitching" noch ein linienförmiges Verstärkungsprofil vorgesehen ist. Dieses linienförmige Verstärkungsprofil kann dabei als Hohlprofil durch die beiden Doppelbleche gebildet werden und ist bevorzugt parallel zum linienförmigen "Stitching" angeordnet. Eine bevorzugte Ausführungsform sieht dabei vor, dass das linienförmige Verstärkungsprofil zwischen zwei linienförmigen Verpressungen angeordnet ist.To further improve the stiffening ability and to improve the distortion, it can also be provided in the metal carrier according to the invention that, in addition to the double sided "stitching", a line-shaped reinforcing profile is also provided. This linear reinforcing profile can be formed as a hollow profile by the two double sheets and is preferably arranged parallel to the line-shaped "stitching". A preferred embodiment provides that the linear reinforcing profile is arranged between two line-shaped pressings.

Die Metallträger nach der Erfindung können zusätzlich, wie an und für sich aus dem Stand der Technik bekannt, noch Öffnungen aufweisen, die zum Verrasten der Metallträger untereinander vorgesehen sind. Die Metallträger nach der Erfindung können dann auch noch Konnektoren, die stirnseitig an den jeweiligen Enden der Metallträger angeordnet sind, aufweisen, die dazu vorgesehen sind, die Metallträger untereinander durch die Öffnung zu verrasten.The metal carriers according to the invention may additionally, as is known per se from the prior art, still have openings which are provided for latching the metal carriers to one another. The metal carriers according to the invention may then also have connectors, which are arranged on the front side at the respective ends of the metal carrier, which are provided to lock the metal carrier with each other through the opening.

Bei den erfindungsgemäßen Metallträgern kann es sich dabei um Metallträger einer Länge von 50 bis 400 cm handeln, und zwar je nach Anwendungsfall. Derartige Metallträger können für Deckenunterkonstruktionen angewendet werden, wobei diese dann entweder als Hauptoder als Querträger fungieren. Die Auswahl der Länge der Metallträger richtet sich dabei selbstverständlich nach dem Anwendungsfall, d.h. danach, ob es sich um einen Haupt- oder um einen Querträger handelt. Das T-Profil der Metallträger weist dabei bevorzugt eine Steghöhe im Stegbereich zwischen 1 und 8 cm auf.The metal carriers according to the invention may be metal carriers of a length of 50 to 400 cm, depending on the application. Such metal beams can be used for ceiling substructures, which then act either as a main or as a cross member. The selection of the length of the metal support depends of course on the application, i. depending on whether it is a main or a cross member. The T-profile of the metal carrier preferably has a web height in the web region between 1 and 8 cm.

Das Material der metallischen Träger ist bevorzugt ein Stahlfeinblech aus einem kaltgewalzten Band. Die Stahlsorten umfassen integrierte C-Stähle mit Kohlenstoffmasseanteilen bis zu 1 %, ein bevorzugtes Stahlfeinblech ist DX 51 Z 100.The material of the metallic supports is preferably a steel sheet of a cold-rolled strip. The steel grades include integrated carbon steels with carbon mass fractions up to 1%, a preferred steel sheet is DX 51 Z 100.

Der erfindungsgemäße Metallträger ist wie vorstehend erläutert besonders geeignet für metallische Deckenunterkonstruktionen als Haupt- und/oder Querträger, wobei der Flansch in Richtung des Rauminneren zeigt.The metal support according to the invention is as described above particularly suitable for metallic ceiling substructures as the main and / or cross member, wherein the flange points in the direction of the interior of the room.

Die Erfindung wird nachfolgend anhand von sieben Figuren näher erläutert, ohne den Gegenstand auf diese Ausführungsformen zu begrenzen.

  • Figur 1 zeigt im Querschnitt einen erfindungsgemäßen Metallträger mit einem zweiseitigen Stitching in zwei Linien.
  • Figur 2 zeigt eine weitere Ausführungsform, bei der die Einpressungen in der zweiten Linie nur von einer Seite aus durchgeführt worden sind.
  • Figur 3 zeigt eine Ausführungsform nach Figur 2, mit einem zusätzlichen Hohlprofil.
  • Figur 4 zeigt in perspektivischer Ansicht einen erfindungsgemäßen Metallträger mit einem beidseitigen Stitching in einer Linie.
  • Figur 5 zeigt ebenfalls in perspektivischer Darstellung einen erfindungsgemäßen Metallträger mit einem Stitching in zwei Linien.
  • Figur 6 zeigt im Längsschnitt in vergrößerter Darstellung eine Verpressung, die mit einem Doppelstempel hergestellt worden ist.
  • Figur 7 zeigt ebenfalls in vergrößerter Darstellung ausschnittsweise im Längsschnitt eine Verpressung, die mit einem Einfachstempel realisiert worden ist.
The invention will be explained in more detail with reference to seven figures, without limiting the subject matter to these embodiments.
  • FIG. 1 shows in cross-section a metal support according to the invention with a two-sided stitching in two lines.
  • FIG. 2 shows a further embodiment in which the impressions in the second line have been performed only from one side.
  • FIG. 3 shows an embodiment according to FIG. 2 , with an additional hollow profile.
  • FIG. 4 shows a perspective view of a metal support according to the invention with a double-sided stitching in a line.
  • FIG. 5 also shows a perspective view of a metal support according to the invention with a stitching in two lines.
  • FIG. 6 shows in longitudinal section in an enlarged view a compression, which has been produced with a double punch.
  • FIG. 7 also shows in enlarged scale fragmentary in longitudinal section a compression, which has been realized with a single punch.

In Figur 1 ist im Querschnitt ein erfindungsgemäßer Metallträger 1 in Form eines inversen T-Profils dargestellt. Der Metallträger nach der Ausführungsform nach Figur 1 ist aus einem Doppelblech 3, 4 gebildet und weist an seinem stegseitigen Ende ein Hohlprofil 5 auf, das durch die beiden Doppelbleche geformt worden ist. In Figur 1 ist nun im Querschnitt zu erkennen, dass die Einpressungen (Stitching) 6, 6' von beiden Seiten in den Stegbereich 2 des Metallträgers 1 eingebracht worden sind. Im Beispielsfall nach der Figur 1 ist am flanschseitigen Ende eine erste Linienform gebildet worden, wobei hier die Einpressungen 6 von der einen Seite, d.h. von der Außenseite des Bleches 3, eingebracht worden sind, wohingegen die Einpressungen 6' von der Außenseite des Bleches 4 eingepresst worden sind. Gleiches gilt für die Einpressungen, die am stegseitigen Ende unterhalb des Hohlprofils 5 vorgesehen sind. Die Ausführungsform nach Figur 1 weist somit ein beidseitiges Stitching auf, wobei jeweils zwei Linien mit abwechselnden Einpressungen vorgesehen sind.In FIG. 1 is a cross-section of an inventive metal carrier 1 shown in the form of an inverse T-profile. The metal carrier according to the embodiment according to FIG. 1 is formed of a double sheet 3, 4 and has at its web-end a hollow profile 5, which has been formed by the two double sheets. In FIG. 1 is now seen in cross-section that the pressings (stitching) 6, 6 'have been introduced from both sides in the web portion 2 of the metal carrier 1. In the example after the FIG. 1 a first line shape has been formed at the flange end, in which case the press-in 6 from one side, ie from the outside of the sheet 3, have been introduced, whereas the press-in 6 'have been pressed from the outside of the sheet 4. The same applies to the impressions, which at the web-end below the Hollow sections 5 are provided. The embodiment according to FIG. 1 thus has a double-sided stitching, each with two lines are provided with alternating pressings.

Die Ausführungsform nach Figur 2 entspricht nun derjenigen nach Figur 1, jedoch sind hier die Einpressungen 6 am stegseitigen Ende nur von einer Seite eingebracht worden, d.h. nur von der Außenseite des Bleches 3. Im Unterschied dazu sind die Einpressungen 6, 6`, die am flanschseitigen Ende angeordnet sind, jeweils immer von der Außenseite 3 (Einpressung 6) und von der Außenseite 4 (Einpressung 6') vorgenommen worden.The embodiment according to FIG. 2 now corresponds to the one after FIG. 1 However, here the indentations 6 have been introduced at the web-side end only from one side, ie only from the outside of the sheet 3. In contrast, the indentations 6, 6 ', which are arranged at the flange end, always from the outer side. 3 (Press 6) and from the outside 4 (press 6 ') have been made.

In Figur 3 ist nun eine weitere Ausführungsform gezeigt, die von der Ausführungsform nach Figur 2 ausgeht und sich dadurch unterscheidet, dass zwischen den flanschseitigen linienförmigen Einpressungen und den stegseitigen linienförmigen Einpressungen noch ein Hohlprofil 8, das durch die beiden Bleche 3, 4 gebildet ist, angeordnet ist. Dadurch wird eine weitere Verbesserung der Steifigkeit und des Verzugs erreicht. Wie die vorstehenden Ausführungsbeispiele belegen, umfasst die Erfindung alle Ausführungsformen, mit der Maßgabe, dass zumindest ein Teil der Einpressungen von einer Seite des ersten Bleches und ein anderer Teil der Einpressungen von der Außenseite des anderen Bleches vorgenommen worden ist.In FIG. 3 Now, a further embodiment is shown by the embodiment FIG. 2 emanating and differs in that between the flange-side line-shaped press-in and the web-side linear press-in nor a hollow section 8, which is formed by the two sheets 3, 4, is arranged. This achieves a further improvement in rigidity and distortion. As the foregoing embodiments demonstrate, the invention includes all embodiments provided that at least a portion of the impressions have been made from one side of the first sheet and another portion of the impressions from the outside of the other sheet.

In Figur 4 ist nun in perspektivischer Darstellung ein erfindungsgemäßer Metallträger 1 dargestellt, der verdeutlicht, dass die Einpressungen 6, 6` in Linienform und dabei abwechselnd am flanschseitigen Ende des Stegbereiches 2 ausgebildet sind. Die Einpressungen 6 und die Einpressungen 6' sind in der Figur dadurch deutlich gemacht, dass die Einpressungen 6` dunkel dargestellt sind, wobei es sich hier um eine Einpressung handelt, die von der dargestellten Seite in Richtung der anderen Seite geführt worden ist. Die Einpressung 6 ist hingegen von der nicht sichtbaren Seite in die dargestellte Seite vorgenommen worden. An dieser Stelle ist auch noch zu betonen, dass die Erfindung selbstverständlich alle Ausführungsformen umfasst, bei denen z.B. dann zwei oder auch drei Einpressungen in die gleiche Richtung vorgenommen worden sind und dann zwei oder drei Einpressungen von der anderen Seite ausgeführt worden sind. Auch ist es nicht erforderlich, dass jeweils immer die gleiche Anzahl von Einpressungen (Stitchings) von jeder Seite vorhanden ist, sondern die Erfindung umfasst auch Ausführungsformen, bei denen z.B. in einer Linie nur 20 % oder 30 % der Einpressungen in eine Richtung vorgenommen worden sind und entsprechend 80 % oder 70 % der Einpressungen von der anderen Richtung.In FIG. 4 is now a perspective view of an inventive metal support 1 shown, which illustrates that the press-in 6, 6` in line form and thereby alternately formed on the flange-side end of the web portion 2. The press-in 6 and the press-in 6 'are characterized in the figure made it clear that the indentations 6 'are shown dark, which is an injection, which has been led from the side shown in the direction of the other side. The press-6, however, has been made from the non-visible page in the page shown. At this point it should also be emphasized that the invention of course includes all embodiments in which, for example, then two or three pressings have been made in the same direction and then two or three pressings have been carried out from the other side. Also, it is not necessary that there are always the same number of stitchings from each side, but the invention also includes embodiments in which, for example, in one line only 20% or 30% of the impressions have been made in one direction and correspondingly 80% or 70% of the impressions from the other direction.

In Figur 5 ist nun wiederum in perspektivischer Darstellung ein erfindungsgemäßer Metallträger 1 dargestellt, bei dem die Einpressungen 6, 6` in zwei Linien ausgeführt sind, und zwar einerseits in einer ersten Linie, die flanschseitig ausgebildet ist, und in einer zweiten Linie, die am stegseitigen Ende vorgesehen ist. Die perspektivische Darstellung des Metallträgers nach Figur 5 entspricht der Darstellung des Metallträgers im Querschnitt nach Figur 1. Aus der Darstellung nach Figur 5 wird auch deutlich, dass die Abstände der jeweiligen Einpressungen beliebig gewählt werden können. Im Ausführungsbeispiel nach der Figur 5 sind zwischen den Einpressungen, die am stegseitigen Ende unterhalb des Hohlprofils 5 vorgesehen sind, wesentlich größere Abstände vorgesehen als für die Einpressungen, die am flanschseitigen Ende angeordnet sind. Auch können die Abstände derartiger Einpressungen innerhalb einer Linie variieren.In FIG. 5 is now again a perspective view of an inventive metal carrier 1 is shown, in which the press-in 6, 6 'are executed in two lines, on the one hand in a first line, which is formed on the flange side, and in a second line, which provided at the web end is. The perspective view of the metal carrier after FIG. 5 corresponds to the representation of the metal carrier in cross section FIG. 1 , From the illustration to FIG. 5 It is also clear that the distances of the respective impressions can be chosen arbitrarily. In the embodiment of the FIG. 5 are provided between the press-in, which are provided at the web-side end below the hollow section 5, much greater distances than for the press-in, the flange-side end are arranged. Also, the distances of such impressions may vary within a line.

In den Figuren 6 und 7 ist in Form einer vergrößerten Darstellung in einem Längsschnitt ausschnittsweise gezeigt, wie die Verpressung 6 bzw. 6` durch einen Einfachstempel (Figur 7) und durch einen Zweifachstempel (Figur 6) realisiert worden ist.In the FIGS. 6 and 7 is shown in fragmentary form in the form of an enlarged view in a longitudinal section, as the pressing 6 or 6 'by a single punch ( FIG. 7 ) and by a double stamp ( FIG. 6 ) has been realized.

Claims (15)

Metallträger (1) für eine Deckenunterkonstruktion mit einem T-Profil aus einem Doppelblech, wobei im Stegbereich (2) ein erstes Blech (3) flächig aneinanderliegend zu einem zweiten Blech (4) angeordnet ist, und am stegseitigen Ende aus dem Doppelblech ein Hohlprofil (5) gebildet ist, dadurch gekennzeichnet, dass im Stegbereich (2) Verstärkungsrippen (6, 6`) eingepresst sind, mit der Maßgabe, dass die Verstärkungsrippen (6, 6') ausgehend von der Außenseite des ersten Blechs (3) in Richtung des zweiten Blechs (4) und von der Außenseite des zweiten Blechs (4) in Richtung des ersten Blechs (3) eingepresst sind.Metal support (1) for a ceiling substructure with a T-profile of a double sheet, wherein in the web region (2) a first sheet (3) is arranged flat against a second sheet (4), and at the web end of the double sheet a hollow profile ( 5) is formed, characterized in that in the web region (2) reinforcing ribs (6, 6`) are pressed, with the proviso that the reinforcing ribs (6, 6 '), starting from the outside of the first sheet (3) in the direction of second sheet (4) and from the outside of the second sheet (4) in the direction of the first sheet (3) are pressed. Metallträger nach Anspruch 1, dadurch gekennzeichnet, dass die eingepressten Verstärkungsrippen (6, 6') parallel zum Flansch (7) in Linienform, bevorzugt über die gesamte Länge des Metallträgers (1), eingepresst sind.Metal support according to claim 1, characterized in that the pressed-in reinforcing ribs (6, 6 ') parallel to the flange (7) in a line shape, preferably over the entire length of the metal carrier (1), are pressed. Metallträger nach Anspruch 2, dadurch gekennzeichnet, dass die Verstärkungsrippen (6, 6`) in Linienform abwechselnd von der Außenseite des ersten Bleches (3) und der Außenseite des zweiten Blechs (4) eingepresst sind.Metal carrier according to claim 2, characterized in that the reinforcing ribs (6, 6 ') are pressed in line form alternately from the outside of the first sheet (3) and the outside of the second sheet (4). Metallträger nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Verstärkungsrippen (6, 6`) in zwei oder drei parallel zum Flansch (7) angeordneten Linien eingepresst sind.Metal support according to claim 2 or 3, characterized in that the reinforcing ribs (6, 6`) in two or three parallel to the flange (7) arranged lines are pressed. Metallträger nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Verstärkungsrippen (6, 6`) in Linienform von der Außenseite eines der Bleche (3, 4) ausgehend eingepresst sind und parallel mindestens in einer hierzu angeordneten zweiten Linie die Verstärkungsrippen (6, 6') von der Außenseite des anderen Blechs (3, 4) ausgehend eingepresst sind.Metal support according to one of claims 1 or 2, characterized in that the reinforcing ribs (6, 6`) are pressed in line form from the outside of one of the sheets (3, 4) and parallel to the reinforcing ribs (6th) at least in a second line arranged therefor , 6 ') are pressed in from the outside of the other sheet (3, 4). Metallträger nach Anspruch 5, dadurch gekennzeichnet, dass die Verstärkungsrippen (6, 6`) der beiden Linien auf Lücke angeordnet sind.Metal support according to claim 5, characterized in that the reinforcing ribs (6, 6`) of the two lines are arranged on a gap. Metallträger nach mindestens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Verpressungen (6, 6`) durch einen Einfachstempel und/oder durch einen Doppelstempel bevorzugt in Rechteckform hergestellt sind.Metal support according to at least one of claims 1 to 6, characterized in that the compressions (6, 6`) are preferably produced by a single punch and / or by a double punch in a rectangular shape. Metallträger nach mindestens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass zusätzlich im Steg der Metallträger (1) bevorzugt über die gesamte Länge des Steges (2) mindestens ein linienförmiges Verstärkungsprofil (8) vorhanden ist.Metal support according to at least one of claims 1 to 7, characterized in that in addition in the web of the metal carrier (1) preferably over the entire length of the web (2) at least one line-shaped reinforcing profile (8) is present. Metallträger nach Anspruch 8, dadurch gekennzeichnet, dass das Verstärkungsprofil (8) als Hohlprofil durch die beiden Doppelbleche (3, 4) gebildet ist.Metal support according to claim 8, characterized in that the reinforcing profile (8) is formed as a hollow profile by the two double sheets (3, 4). Metallträger nach mindestens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Flansch (7) aus den Einzelblechen besteht und über ein zusätzliches metallisches Abschlussblech verstärkt ist.Metal support according to at least one of claims 1 to 9, characterized in that the flange (7) consists of the individual sheets and is reinforced by an additional metallic end plate. Metallträger nach mindestens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das stegseitige Ende der T-Träger ein Hohlprofil in Rechteckform ist.Metal support according to at least one of claims 1 to 10, characterized in that the web-side end of the T-beam is a hollow profile in a rectangular shape. Metallträger nach mindestens einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass der Metallträger (1) eine Länge von 50 bis 400 cm und das T-Profil der Metallträger (1) eine Steghöhe des Stegbereichs (2) von 1 bis 8 cm aufweist.Metal carrier according to at least one of claims 1 to 11, characterized in that the metal carrier (1) has a length of 50 to 400 cm and the T-profile of the metal carrier (1) has a web height of the web region (2) of 1 to 8 cm. Metallträger nach mindestens einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass das metallische Material des Trägers (1) ein Stahlfeinblech ist.Metal carrier according to at least one of claims 1 to 12, characterized in that the metallic material of the carrier (1) is a steel sheet. Metallträger nach mindestens einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass im Stegbereich (2) des Metallträgers (1) Öffnungen vorgesehen sind, durch die an den stirnseitigen Enden der Metallträger (1) angeordnete Konnektoren führbar sind, die zur Verrastung mit Konnektoren der anderen Metallträger (1) dienen.Metal carrier according to at least one of claims 1 to 13, characterized in that in the web region (2) of the metal carrier (1) openings are provided, through which at the front ends of the metal carrier (1) arranged connectors are feasible, which for locking with connectors of serve other metal support (1). Verwendung der Metallträger nach mindestens einem der Ansprüche 1 bis 14 für metallische Deckenunterkonstruktionen als Haupt- und/oder Querträger, wobei der Flansch in Richtung des Rauminneren zeigt.Use of the metal supports according to at least one of claims 1 to 14 for metallic ceiling substructures as main and / or cross members, the flange pointing in the direction of the interior of the room.
EP20110004788 2011-06-10 2011-06-10 Metal girder and its use Active EP2532799B1 (en)

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US9376811B2 (en) * 2012-07-27 2016-06-28 Giuseppe Cipriani Bar for a support structure for a false ceiling and production process for producing the bar
US9593482B2 (en) 2013-03-08 2017-03-14 Giuseppe Cipriani Bar of a support structure for a false ceiling and working process for working the bar

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DE4431849A1 (en) * 1994-09-07 1996-03-14 Nagel Hans Joachim Push=through fastening process for metal sheets
US6199343B1 (en) 1999-04-19 2001-03-13 Worthington Armstrong Venture Connector assembly for ceiling grid
US6523314B1 (en) * 2000-12-29 2003-02-25 Usg Interiors, Inc. Ceiling grid with resilient centering tabs
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US9376811B2 (en) * 2012-07-27 2016-06-28 Giuseppe Cipriani Bar for a support structure for a false ceiling and production process for producing the bar
US9371649B2 (en) 2013-02-14 2016-06-21 Giuseppe Cipriani Support metal structure of a false ceiling
US9593482B2 (en) 2013-03-08 2017-03-14 Giuseppe Cipriani Bar of a support structure for a false ceiling and working process for working the bar

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ES2539916T3 (en) 2015-07-07
PL2532799T3 (en) 2015-11-30

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