EP3854953B1 - Mounting arrangement - Google Patents

Mounting arrangement Download PDF

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Publication number
EP3854953B1
EP3854953B1 EP21150822.1A EP21150822A EP3854953B1 EP 3854953 B1 EP3854953 B1 EP 3854953B1 EP 21150822 A EP21150822 A EP 21150822A EP 3854953 B1 EP3854953 B1 EP 3854953B1
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EP
European Patent Office
Prior art keywords
profile rail
anchor
rail
slot
surface anchor
Prior art date
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Application number
EP21150822.1A
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German (de)
French (fr)
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EP3854953A1 (en
Inventor
Frank Burkhardt
Michael Petrasch
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.)
Fischerwerke GmbH and Co KG
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Fischerwerke GmbH and Co KG
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Priority claimed from DE102020131596.1A external-priority patent/DE102020131596A1/en
Application filed by Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Publication of EP3854953A1 publication Critical patent/EP3854953A1/en
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Publication of EP3854953B1 publication Critical patent/EP3854953B1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/41Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4107Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/41Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4114Elements with sockets

Definitions

  • Anchor rails are typically arranged flush, sunk into a floor or a wall made of concrete and are used to fasten objects, for example machines, with the help of, for example, hammerhead screws. “Flush recessed” means that the anchor rail is embedded in the concrete and one side of the anchor rail is flush with a surface of, for example, the concrete.
  • the anchor rails are cast with concrete on three sides.
  • the anchor rails typically have a C-profile rail, that is, a square tube profile or a rectangular tube profile with a continuous longitudinal slot in a transverse center of a side also referred to here as the “top”.
  • the European patent application EP 3 438 361 A1 discloses an anchor rail with a C-profile rail, from which bolt-shaped anchors with foot washers protrude in a longitudinal center plane of the C-profile rail from an underside opposite a slot in the C-profile rail for anchoring in concrete, which are concreted into the concrete when the anchor rail is cast in concrete and anchor the anchor rail in the concrete perpendicular to a surface of the concrete to prevent it from being torn out of the concrete.
  • the anchor rail is arranged parallel to and close to the edge of the concrete body.
  • anchor rails that are arranged close to an edge of a concrete body for structural reasons usually have to be “re-anchored”.
  • the well-known method provides for anchoring back against a transverse force transverse to the C-profile rail and parallel to the surface of the concrete Anchor rail has rod-shaped anchors, which protrude perpendicular to the central plane in which the bolt-shaped anchors are located, from the underside opposite the slot in the C-profile rail.
  • the rod-shaped anchors When setting in concrete, the rod-shaped anchors are embedded in concrete parallel to the surface of the concrete and sunk below the surface of the concrete by a height of the C-profile rail.
  • the rod-shaped anchors absorb a transverse force acting on the anchor rail and prevent the anchor rail from breaking out of the concrete body in the direction of the edge of the concrete body.
  • the disadvantage of the back anchoring of the prior art is that this back anchoring does not have to be subsequently attached to a concrete body, but must inevitably be cast in during the production of the concrete body.
  • the object of the invention is to propose a more flexible anchoring, which on the one hand offers the possibility of subsequently anchoring an anchor rail to or in concrete and, on the other hand, enables a planned anchoring of an anchor rail while the concrete is being poured.
  • the anchor rail of the fastening arrangement according to the invention has a C-profile rail with a slot in a first side of the C-profile rail, which is intended to be embedded in concrete, such that the first side of the C-profile rail is in particular flush with a surface of the concrete and the C -Profile rail is also embedded in the concrete.
  • the slot is in particular a continuous slot in a longitudinal direction of the C-profile rail, in particular in a transverse center of the C-profile rail or its first side.
  • One or more anchoring elements protrude from a second side opposite the first side, which anchor the concrete-encased C-profile rail in the concrete.
  • the anchor rail has at least one surface anchor for re-anchoring the C-profile rail, which rests on the first side of the C-profile rail and protrudes from a third side of the C-profile rail, that is, relative to a third side adjacent to the first side.
  • the part of the surface anchor that protrudes from the C-profile rail projects in particular at a right angle from the C-profile rail and is designed as a tab.
  • the tab is in particular a flat steel or a cut or punched sheet steel.
  • the tab has a width in particular of less than 60 mm, preferably between 30 mm and 50 mm. “Width” means the extent of the tab in the longitudinal direction of the C-profile rail.
  • a length of the tab is many times greater than the width of the tab.
  • the length of the tab preferably corresponds to at least three times and in particular at least five times the width of the tab. However, depending on the structural environment and the intended use of the surface anchor, the length can be five to ten or twenty times the width. Even longer tabs are also possible.
  • several surface anchors are arranged on the anchor rail, in particular equidistant from one another, whereby constant anchoring is achieved over the entire length of the anchor rail.
  • the surface anchor does not have to be directly connected to the third side or arranged directly on it, but rather only protrudes or protrudes over this surface.
  • the support can be done directly or indirectly, for example via an intermediate piece for height compensation.
  • the surface anchor can be connected to the C-profile rail on the first side.
  • the surface anchor is in operative connection with the slot of the C-profile rail and can additionally be connected to the first side of the C-profile rail.
  • the surface anchor does not necessarily have to engage with the slot.
  • the surface anchor could, for example, be placed on the first side of the C-profile rail so as to be flush with the surface and, in particular, only partially cover the slot, and be fastened there, in particular by welding, to the C-profile rail.
  • the surface anchor can be designed at least in sections as a type of sheet metal strip with an opening, the dimension of the opening essentially corresponding to the extent of the slot in the C-profile rail.
  • the sheet metal strip with the breakthrough is welded onto the first side of the C-profile rail or otherwise attached to it, for example by riveting, so that the breakthrough only partially covers the slot.
  • a width of the opening corresponds to the transverse width of the slot in the C-profile rail
  • the surface anchor or more precisely the tab of the surface anchor, is arranged on the C-profile rail in such a way that when the C-profile rail is concreted in in the intended manner, it protrudes to the side from the C-profile rail and rests on the surface of the concrete or is flush with the surface of the Concrete completes.
  • the surface anchor or anchors have an anchoring means at a distance from the C-profile rail, in particular at one end of the tab.
  • the anchoring means is generally a possibility or device for attaching the surface anchor to the concrete.
  • it can be a hole in the tab through which the Surface anchor can be fixed to the concrete by means of a fastener, for example a bolt anchor, a concrete screw, an anchor rod chemically fastened in the concrete or the like.
  • the surface anchor can also be anchored so deeply in a building part made of concrete, in particular cast into the building part, that it is in particular flush with the surface of the concrete, or the building part.
  • the surface anchor is therefore particularly flush with the surface.
  • the surface anchor is at least partially cohesively connected to the concrete and the anchoring means are in particular also at least partially cast into the concrete.
  • the anchoring means are in particular holes, bolts, wave anchors or the like.
  • the advantage of the planned type of anchoring is that the surface of the concrete is essentially completely usable and is not blocked by the surface anchor. During subsequent anchoring, the surface anchor rests on the C-profile rail, resulting in a potentially disruptive bump on the otherwise flat surface of the concrete.
  • the invention has the advantage that a C-profile rail of an anchor rail that has already been set in concrete can be subsequently secured against transverse force loading, i.e. anchored back.
  • This can be advantageous or even necessary if the C-profile rail is arranged close to the edge in concrete if there is a risk of the concrete breaking out to the side of the C-profile rail at the edge of the concrete or has already occurred.
  • the planned anchoring of the C-profile rail also prevents concrete from breaking out, whereby, as already mentioned, the entire surface of the concrete can be used.
  • the surface anchor protrudes laterally from the C-profile rail or from its third side on a plane flush with the first side of the C-profile rail that has the slot, or is flush with the first side of the C-profile rail enforce level.
  • the third side is the side of the C-profile rail adjacent to the first side having the slot.
  • the surface anchor rests on the surface of the concrete when the C-profile rail is concreted in as intended.
  • the surface anchor penetrates into the concrete from the side of the C-profile rail.
  • the second case is intended for initially attaching the surface anchor to the C-profile rail, so that the surface anchor is also concreted in when the C-profile rail is set in concrete and does not have to be subsequently sunk into the concrete.
  • this version has the advantage that the surface anchor does not rest on the concrete over its full length, but is partially or completely in the concrete.
  • Attaching the surface anchor to the C-profile rail is possible, for example, by hanging the surface anchor in the slot of the C-profile rail.
  • the suspension only needs to be tensile-resistant in the direction in which the surface anchor protrudes from the C-profile rail, i.e. it must be able to transmit a transverse force from the C-profile rail as a tensile force to the surface anchor.
  • Hanging the surface anchor in the slot of the C-profile rail is a simple, quick and inexpensive way to connect the surface anchor to the C-profile rail.
  • the surface anchor can have a single hook which, for connecting to the C-profile rail, surrounds a first slot edge of the slot in the C-profile rail, so that it transmits a transverse force of the C-profile rail as a tensile force to the surface anchor.
  • the surface anchor can also have a double hook which surrounds the first slot edge of the slot in the C-profile rail and engages under an opposite second slot edge of the slot in the C-profile rail when the double hook or the surface anchor is connected to the C-profile rail, so that the double hook cannot be easily lifted out of the C-profile rail.
  • another embodiment of the invention provides a fastener attached to or in the C-profile rail, which has a shaft that protrudes from the slot in the first side of the C-profile rail.
  • the fastener can be, for example, a hammerhead screw or a sliding block with a screwed-in threaded bolt.
  • the surface anchor is attached to the shaft of the fastener protruding from the slot in the C-profile rail.
  • the surface anchor has a surface structuring, in particular a toothing, on a side facing away from the first side.
  • a fastener for example a fastener as described in the previous paragraph, can be secured against displacement along the slot of the C-profile rail by means of shape and/or friction.
  • One embodiment of the invention provides that the surface anchor connects the C-profile rail with a second C-profile rail, which is arranged at a distance from the one C-profile rail.
  • the surface anchor transfers the load from one C-profile rail to the other C-profile rail, which is arranged at a distance.
  • the surface anchor has a pseudoplastically stretched shape memory alloy or consists of a pseudoplastically stretched shape memory alloy.
  • Shape memory alloys are metal alloys that change their shape through a phase transformation of their crystal structures, especially between martensite and austenite. The phase transformation and shape change occurs when a transformation temperature is reached or exceeded. Beforehand, the shape memory alloy must be pseudoplastically deformed, which typically, but not necessarily, occurs through mechanical deformation, which can then be completely or partially reversed by heating to or above the transformation temperature. Shape memory alloys with a two-way effect are also known, which deform at high temperature and completely or partially reshape at low temperature. In this embodiment of the invention, a tensile stress can be generated in the surface anchor after the surface anchor has been fixed to or in the concrete by heating the surface anchor to or above the transformation temperature of the shape memory alloy, that is, the surface anchor is prestressed.
  • One embodiment of the invention provides an elastically and/or plastically deformable strip on the outside of a fourth side of the C-profile rail adjacent to the first side and opposite the third side.
  • the first side has the slot and the surface anchor protrudes from the adjacent third side.
  • the deformable strip is therefore located on the outside of the C-profile rail opposite the side from which the surface anchor protrudes.
  • the deformable strip preferably occupies an entire area of the fourth side of the C-profile rail.
  • the deformable strip enables a slight displacement of the C-profile rail in the concrete in a direction transverse to the C-profile rail opposite to the direction in which the surface anchor protrudes from the C-profile rail.
  • the above explanations of the anchor rail are referred to.
  • the C-profile rail of the anchor rail is anchored recessed in a structural part made of concrete in such a way that its first side, which has the slot, is flush with a surface of the part of the building.
  • the surface anchor is connected to the C-profile rail on the first side and protrudes from the C-profile rail on the third side adjacent to the first side.
  • the surface anchor, or more precisely the tab rests on the surface of the building part and is fixed to the building part at a distance from the C-profile rail or penetrates the side of the C-profile rail into the building part.
  • the C-profile rail is arranged close to an edge of the structural part, i.e. close to the edge, and in particular parallel to the edge of the structural part. “Near” here means that the distance of the C-profile rail from the edge corresponds to a maximum of twice the length of the C-profile rail, in particular that the distance is less than the length of the profile rail.
  • the surface anchor or more precisely the tab of the surface anchor, extends away from the edge of the structural part at a particularly right angle to the C-rail. The tab of the surface anchor is therefore facing away from the edge.
  • the tab is fixed, in particular at a tab end that faces away from the C-profile rail, on the surface of the building part or in the building part itself, which ensures a stable anchoring of the anchor rail. Thanks to the fastening arrangement according to the invention, anchor rails can therefore be safely cast into a component near the edge without the risk of them breaking out of the structural part under load.
  • the C-profile rail can also be anchored so deeply recessed in the concrete structural part, in particular cast into the structural part, that the surface anchor is flush with the surface of the structural part.
  • anchor rail 1 has a C-profile rail 2, which has a rectangular hollow profile with a longitudinally continuous slot 3 in a first side 4, which can also be referred to as the top of the C-profile rail 2.
  • the anchor rail 1 or its C-profile rail 2 is intended to be embedded in concrete in a structural part 5 such as a concrete floor in such a way that, as in Figure 1 can be seen, the first side 4 of the C-profile rail 2, which has the slot 3, is flush with a surface of the structural part 5 and the C-profile rail 2 is otherwise sunk into the structural part 5. Only individual edges of the building part 5 are drawn and it is drawn transparently so that the anchor rail 1 is visible.
  • Anchoring elements 7 protrude from a second side 6 opposite the first side 4, which can also be referred to as the underside of the C-profile rail 2, and are fastened, for example welded, to the second side 6 of the C-profile rail 2.
  • the anchoring elements 7 are bolts with flange-shaped feet 8 at their ends remote from the C-profile rail 2.
  • the anchoring elements 7 are embedded in the concrete of the structural part 5 and hold the C-profile rail 2 against being torn out of the structural part 5 perpendicular to its surface.
  • the anchoring elements 7 are arranged in a longitudinal center plane of the C-profile rail 2.
  • the anchoring elements 7 can, for example, also protrude from the second side 6 of the C-profile rail 2 in a V-shape, viewed in the longitudinal direction of the C-profile rail 2, and protrude into the structural part 5 (not shown).
  • a strip-shaped surface anchor 9 is suspended in the exemplary embodiment, which rests on the first side 4 of the C-profile rail 2 and on or from a third side 10 of the C-profile rail 2 adjacent to the first side 4 Tab sticks out.
  • the surface anchor 9 rests on the surface of the structural part 5.
  • the surface anchor 9 has a single hook 11, which surrounds a first slot edge 12 of the slot 3 of the C-profile rail 2 and in this way connects the surface anchor 9 to the C-profile rail 2 in a tensile manner.
  • tensile strength is meant that the single hook 11 of the surface anchor 9 suspended in the slot 3 of the C-profile rail 2 transmits a transverse force acting transversely to the C-profile rail 2 as a tensile force acting in a longitudinal direction of the surface anchor 9 to the surface anchor 9.
  • the surface anchor 9 has a hole at one end of the tab, which is generally referred to here as anchoring means 13 of the surface anchor 9.
  • anchoring means 13 of the surface anchor 9 Through the hole in the tab forming the anchoring means 13, the surface anchor 9 can be fixed to the structural part 5 at a distance from the C-profile rail 2 and thus serves to anchor the C-profile rail 2 back.
  • a screw can be inserted through the anchoring means 13 designed as a hole of the surface anchor 9 are screwed into an expansion dowel, which is spread and anchored in the structural part 5 (not shown).
  • the surface anchor 9 can also be fixed, for example, by gluing it to the surface of the structural part 5.
  • the adhesive forms the anchoring means, which connects the surface anchor 9 to the structural part 5 at a distance from the C-profile rail 2 even when the adhesive is applied to the surface anchor 9 up to the C-profile rail 2.
  • the C-profile rail 2 has a deformable strip 15 on the outside, which covers the fourth side 14 of the C-profile rail 2 completely or almost completely covered.
  • the strip 15 consists of an elastic, solid foam.
  • the fourth side 14 of the C-profile rail 2 borders on its first side 4 with the slot 3 and on the opposite second side 6, from which the anchoring elements 7 protrude.
  • the fourth side 14 of the C-profile rail 2 is located opposite the third side 10, on or from which the surface anchor 9 protrudes.
  • the deformable strip 15 allows a slight movement of the C-profile rail 2 in the structural part 5 transversely to the C-profile rail 2, parallel to the surface of the structural part 5 and away from the surface anchor 9, when the C-profile rail 2 is transverse to itself, that is is loaded longitudinally to the surface anchor 9 and away from it. This prevents the concrete of the structural part 5 from breaking out prematurely when the C-profile rail 2 is subjected to such transverse stress.
  • the C-profile rail 2 of the anchor rail 1 preferably has a plurality of surface anchors 9, which are suspended transversely to the C-profile rail 2, parallel to one another and at distances from one another in the longitudinal direction of the C-profile rail 2 in the slot 3 of the C-profile rail 2 and on the structural part 5 are set.
  • the surface anchors 9 secure the C-profile rail 2 against a transverse force and prevent the concrete from breaking out, especially when the C-profile rail 2 is arranged close to the edge in the building part 5.
  • the surface anchors 9 stand on an edge 16 of the building part 5 that is close to the C-profile rail 2 opposite side of the C-profile rail 2.
  • the surface anchor 9 can also be angled so that it penetrates into the concrete of the structural part 5 next to the C-profile rail 2 and secures the C-profile rail 2 on the structural part 5 against a transverse force.
  • the surface anchor 9 penetrates the surface of the structural part 5 laterally next to the C-profile rail 2, the surface of the structural part 5 being flush with the first side 4 of the C-profile rail 2 and thus one with the first side 4 of the C-profile rail 2 flush levels.
  • the surface anchor 9 has a double hook 17 instead of the single hook 11 at its end.
  • the double hook 17 encompasses the first slot edge 12 of the slot 3 of the C-profile rail 2 and also reaches under a second slot edge 18 opposite the first slot edge 12, so that the double hook 17 is not pulled out of the slot 3 and the surface anchor 9 is not can be lifted from the first side 4 of the C-profile rail 2.
  • a hammerhead screw 19 connects the surface anchor 9 to the C-profile rail 2.
  • the hammerhead screw 19, which can also generally be understood as a fastener 20, is suspended with its hammerhead 21 in the C-profile rail 2, so that its shaft 22 on the first side 4 protrudes from the slot 3 of the C-profile rail 2.
  • the surface anchor 9 in this exemplary embodiment of the invention has a hole through which the shaft 22 of the hammer head screw 19, which forms the fastener 20, passes through, so that the surface anchor 9 is hooked into the slot 3 of the C-profile rail 2 and is connected in this way to the C-profile rail 2.
  • a component (not shown), for example a machine frame, can be attached to the shaft 22 of the hammerhead screw 19 forming the fastener 20, which protrudes from the C-profile rail 2 and at the same time from the structural part 5.
  • two C-profile rails 2 are arranged at a distance from one another and parallel to one another with their first sides 4 having the slot 3 flush with the surface of the structural part 5 and sunk into it.
  • Several surface anchors 9 arranged transversely to the C-profile rails 2 and parallel to one another connect the two C-profile rails 2, whereby a C-profile rail 2 arranged near an edge of the structural part 5 is secured to a C-profile rail 2 further away from the edge of the structural part 5 can be.
  • a surface anchor 9 is shown in Figure 4 only a surface anchor 9 is shown.
  • the surface anchor 9 is formed by two tabs, each with an anchoring means 13 and a sheet metal strip 25 which has an opening 26.
  • the sheet metal strip 25 is welded onto the first side 4 of the C-profile rail 2 in such a way that the opening 26 is oriented parallel to the slot 3 and thus does not cover the slot 3 of the C-profile rail 2.
  • the main difference of the exemplary embodiment Figure 5 Compared to the previous exemplary embodiments, it is not the first side 4 of the C-profile rail 2 that is flush with the surface of the structural part 5, but that the surface anchor 9 is flush with the surface of the component 5. This means that the entire surface of the component 5 can be used, since there is no protrusion through the surface anchor 9.
  • the C-profile rail 2 is cast into the structural part 5 together with the surface anchor 9.
  • the surface anchor 9 has a surface structuring 23 in the form of a toothing 24.
  • a toothed washer is fastened in the slot 3, secured against slipping in the longitudinal direction of the rail, i.e. along the slot 3 (not shown). The toothed washer engages with the teeth 24.
  • the surface anchor 9 can consist of basically any material, for example a metal strip. It is also possible for the surface anchor 9 to be made of plastic, in particular of fiber-reinforced plastic.
  • the surface anchor 9 can consist of or have a prepreg. A prepreg has fibers embedded in a synthetic resin, whereby the synthetic resin can be cured for sticking to the surface of the structural part 5 (not shown).
  • the surface anchor 9 consists of, or at least has, a pseudoplastically stretched shape memory alloy.
  • the surface anchor 9 shortens when heated to or above a transformation temperature of the shape memory alloy. This makes it possible to generate a tensile stress in the surface anchor 9, which biases the C-profile rail 2 transversely to the C-profile rail 2 and parallel to the surface of the structural part 5 away from the edge of the structural part 5 near the C-profile rail 2.

Description

Die Erfindung betrifft zwei Befestigungsanordnungen mit einer Ankerschiene gemäß den Ansprüchen 1 und 2. Ankerschienen werden typischerweise bündig versenkt in einem Boden oder auch einer Wand aus Beton angeordnet und dienen einer Befestigung von Gegenständen, beispielsweise von Maschinen, mit Hilfe beispielsweise von Hammerkopfschrauben. "Bündig versenkt" bedeutet, dass die Ankerschiene in den Beton eingebettet und eine Seite der Ankerschiene bündig mit einer Oberfläche beispielsweise des Betons ist. Bei der Herstellung des Bodens oder dergleichen werden die Ankerschienen auf drei Seiten mit dem Beton umgossen. Die Ankerschienen weisen typischerweise eine C-Profilschiene auf, das heißt ein quadratisches Rohrprofil oder ein Rechteck-Rohrprofil mit einem durchgehenden Längsschlitz in einer Quermitte einer hier auch als "Oberseite" bezeichneten Seite.The invention relates to two fastening arrangements with an anchor rail according to claims 1 and 2. Anchor rails are typically arranged flush, sunk into a floor or a wall made of concrete and are used to fasten objects, for example machines, with the help of, for example, hammerhead screws. “Flush recessed” means that the anchor rail is embedded in the concrete and one side of the anchor rail is flush with a surface of, for example, the concrete. When producing the floor or the like, the anchor rails are cast with concrete on three sides. The anchor rails typically have a C-profile rail, that is, a square tube profile or a rectangular tube profile with a continuous longitudinal slot in a transverse center of a side also referred to here as the “top”.

Die europäische Patentanmeldung EP 3 438 361 A1 offenbart eine Ankerschiene mit einer C-Profilschiene, von der zu einer Verankerung in Beton bolzenförmige Anker mit Fußscheiben in einer Längsmittelebene der C-Profilschiene von einer einem Schlitz der C-Profilschiene gegenüberliegenden Unterseite abstehen, die bei einem Einbetonieren der Ankerschiene in den Beton einbetoniert werden und die Ankerschiene gegen ein Herausreißen aus dem Beton senkrecht zu einer Oberfläche des Betons im Beton verankern. Die Ankerschiene ist parallel zu und nahe der Kante des Betonkörpers angeordnet. Wirkt auf die Ankerschiene parallel zur Oberfläche des Betons und in Richtung der Kante eine zu große Querkraft, könnte die Ankerschiene aufgrund der Anordnung nahe der Kante aus dem Betonkörper herausbrechen und im Betonkörper einen Ausbruchkegel oder generell eine Ausbruchstelle hinterlassen. Daher müssen Ankerschienen, die baulich bedingt nahe an einer Kante eines Betonkörpers angeordnet sind, zumeist "rückverankert" werden. Zu einer Rückverankerung gegen eine Querkraft quer zur C-Profilschiene und parallel zur Oberfläche des Betons weist die bekannte Ankerschiene stangenförmige Anker auf, die senkrecht zu der Mittelebene, in der sich die bolzenförmigen Anker befinden, von der dem Schlitz der C-Profilschiene gegenüberliegenden Unterseite abstehen. Beim Einbetonieren werden die stangenförmigen Anker parallel zu der Oberfläche des Betons und um eine Höhe der C-Profilschiene versenkt unter der Oberfläche des Betons einbetoniert. Die stangenförmigen Anker nehmen eine auf die Ankerschiene einwirkende Querkraft auf und verhindern, dass die Ankerschiene in Richtung der Kante des Betonkörpers aus dem Betonkörper herausbrechen kann. Nachteilig an der Rückverankerung des Stands der Technik ist, dass diese Rückverankerung nicht nachträglich an einen Betonkörper angebracht, sondern zwangsläufig bei der Herstellung des Betonkörpers bereits mit eingegossen werden muss. Aufgabe der Erfindung ist, eine flexiblere Rückverankerung vorzuschlagen, welche zum einen eine Möglichkeit zu einer nachträglichen Rückverankerung einer Ankerschiene an oder in Beton bietet und zum anderen eine geplante Rückverankerung einer Ankerschiene bereits während des Gießens des Betons ermöglicht.The European patent application EP 3 438 361 A1 discloses an anchor rail with a C-profile rail, from which bolt-shaped anchors with foot washers protrude in a longitudinal center plane of the C-profile rail from an underside opposite a slot in the C-profile rail for anchoring in concrete, which are concreted into the concrete when the anchor rail is cast in concrete and anchor the anchor rail in the concrete perpendicular to a surface of the concrete to prevent it from being torn out of the concrete. The anchor rail is arranged parallel to and close to the edge of the concrete body. If an excessive transverse force acts on the anchor rail parallel to the surface of the concrete and in the direction of the edge, the anchor rail could break out of the concrete body due to its arrangement near the edge and leave a breakout cone or a breakout point in general in the concrete body. Therefore, anchor rails that are arranged close to an edge of a concrete body for structural reasons usually have to be “re-anchored”. The well-known method provides for anchoring back against a transverse force transverse to the C-profile rail and parallel to the surface of the concrete Anchor rail has rod-shaped anchors, which protrude perpendicular to the central plane in which the bolt-shaped anchors are located, from the underside opposite the slot in the C-profile rail. When setting in concrete, the rod-shaped anchors are embedded in concrete parallel to the surface of the concrete and sunk below the surface of the concrete by a height of the C-profile rail. The rod-shaped anchors absorb a transverse force acting on the anchor rail and prevent the anchor rail from breaking out of the concrete body in the direction of the edge of the concrete body. The disadvantage of the back anchoring of the prior art is that this back anchoring does not have to be subsequently attached to a concrete body, but must inevitably be cast in during the production of the concrete body. The object of the invention is to propose a more flexible anchoring, which on the one hand offers the possibility of subsequently anchoring an anchor rail to or in concrete and, on the other hand, enables a planned anchoring of an anchor rail while the concrete is being poured.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 und 2 gelöst. Die Ankerschiene der erfindungsgemäßen Befestigungsanordnung weist eine C-Profilschiene mit einem Schlitz in einer ersten Seite der C-Profilschiene auf, die zu einem Einbetonieren vorgesehen ist, derart, dass die erste Seite der C-Profilschiene insbesondere bündig mit einer Oberfläche des Betons und die C-Profilschiene im Übrigen in den Beton eingebettet ist. Der Schlitz ist insbesondere ein in einer Längsrichtung der C-Profilschiene durchgehender Schlitz insbesondere in einer Quermitte der C-Profilschiene beziehungsweise ihrer ersten Seite. Von einer der ersten Seite gegenüberliegenden zweiten Seite stehen ein oder mehrere Verankerungselemente ab, die die einbetonierte C-Profilschiene in dem Beton verankern.This object is achieved according to the invention by the features of claims 1 and 2. The anchor rail of the fastening arrangement according to the invention has a C-profile rail with a slot in a first side of the C-profile rail, which is intended to be embedded in concrete, such that the first side of the C-profile rail is in particular flush with a surface of the concrete and the C -Profile rail is also embedded in the concrete. The slot is in particular a continuous slot in a longitudinal direction of the C-profile rail, in particular in a transverse center of the C-profile rail or its first side. One or more anchoring elements protrude from a second side opposite the first side, which anchor the concrete-encased C-profile rail in the concrete.

Des Weiteren weist die Ankerschiene mindestens einen Oberflächenanker für eine Rückverankerung der C-Profilschiene auf, der an der ersten Seite der C-Profilschiene aufliegt und von einer, das heißt, bezogen auf eine an die erste Seite angrenzenden dritten Seite der C-Profilschiene absteht. Der Teil des Oberflächenankers, der von der C-Profilschiene absteht, steht insbesondere in einem rechten Winkel von der C-Profilschiene ab und ist als eine Lasche ausgestaltet. Die Lasche ist insbesondere ein Flachstahl oder ein zugeschnittenes oder gestanztes Stahlblech. Die Lasche weist eine Breite insbesondere von weniger als 60 mm, bevorzugt zwischen 30 mm und 50 mm auf. Unter "Breite" ist die Ausdehnung der Lasche in Längsrichtung der C-Profilschiene zu verstehen. Insbesondere ist eine Länge der Lasche um ein Vielfaches größer als die Breite der Lasche. Unter der "Länge" ist die Erstreckung der Lasche weg von der Ankerschiene zu verstehen. Bevorzugt entspricht die Länge der Lasche mindestens dem dreifachen und insbesondere mindestens dem fünffachen der Breite der Lasche. Abhängig von der baulichen Umgebung und dem Einsatzzweck des Oberflächenankers kann die Länge jedoch auch dem fünf- bis zehn oder zwanzig-fachen der Breite entsprechen. Auch noch längere Laschen sind möglich. Insbesondere sind bei längeren Ankerschienen mehrere Oberflächenanker, insbesondere äquidistant zueinander, an der Ankerschiene angeordnet, wodurch eine konstante Rückverankerung über die komplette Ankerschienenlänge erreicht wird.Furthermore, the anchor rail has at least one surface anchor for re-anchoring the C-profile rail, which rests on the first side of the C-profile rail and protrudes from a third side of the C-profile rail, that is, relative to a third side adjacent to the first side. The part of the surface anchor that protrudes from the C-profile rail projects in particular at a right angle from the C-profile rail and is designed as a tab. The tab is in particular a flat steel or a cut or punched sheet steel. The tab has a width in particular of less than 60 mm, preferably between 30 mm and 50 mm. “Width” means the extent of the tab in the longitudinal direction of the C-profile rail. In particular, a length of the tab is many times greater than the width of the tab. Below the “length” is the extent the tab away from the anchor rail. The length of the tab preferably corresponds to at least three times and in particular at least five times the width of the tab. However, depending on the structural environment and the intended use of the surface anchor, the length can be five to ten or twenty times the width. Even longer tabs are also possible. In particular, with longer anchor rails, several surface anchors are arranged on the anchor rail, in particular equidistant from one another, whereby constant anchoring is achieved over the entire length of the anchor rail.

Der Oberflächenanker muss nicht direkt mit der dritten Seite verbunden oder direkt an dieser angeordnet sein, sondern nur über diese Fläche ab- beziehungsweise überstehen. Die Auflage kann direkt oder indirekt, beispielsweise über ein Zwischenstück zum Höhenausgleich erfolgen. Vorzugsweise kann der Oberflächenanker an der ersten Seite mit der C-Profilschiene verbunden sein. Insbesondere steht der Oberflächenanker mit dem Schlitz der C-Profilschiene in Wirkverbindung und kann hierbei zusätzlich mit der ersten Seite der C-Profilschiene verbunden sein. Der Oberflächenanker muss jedoch nicht zwangsläufig mit dem Schlitz in Eingriff stehen. Der Oberflächenanker könnte beispielsweise lediglich oberflächenbündig und insbesondere den Schlitz nur teilweise abdeckend auf die erste Seite der C-Profilschiene aufgelegt und dort, insbesondere durch Schweißen, mit der C-Profilschiene befestigt sein. Der Oberflächenanker kann zumindest abschnittsweise als eine Art Blechstreifen mit einem Durchbruch ausgestaltet sein, wobei die Dimension des Durchbruchs im Wesentlichen mit der Ausdehnung des Schlitzes der C-Profilschiene korrespondiert. Insbesondere ist der Blechstreifen mit dem Durchbruch derart auf die erste Seite der C-Profilschiene aufgeschweißt oder anderweitig, beispielsweise durch nieten, mit dieser befestigt, dass der Durchbruch den Schlitz höchstens teilweise bedeckt. Insbesondere korrespondiert eine Breite des Durchbruchs mit der Querbreite des Schlitzes der C-ProfilschieneThe surface anchor does not have to be directly connected to the third side or arranged directly on it, but rather only protrudes or protrudes over this surface. The support can be done directly or indirectly, for example via an intermediate piece for height compensation. Preferably, the surface anchor can be connected to the C-profile rail on the first side. In particular, the surface anchor is in operative connection with the slot of the C-profile rail and can additionally be connected to the first side of the C-profile rail. However, the surface anchor does not necessarily have to engage with the slot. The surface anchor could, for example, be placed on the first side of the C-profile rail so as to be flush with the surface and, in particular, only partially cover the slot, and be fastened there, in particular by welding, to the C-profile rail. The surface anchor can be designed at least in sections as a type of sheet metal strip with an opening, the dimension of the opening essentially corresponding to the extent of the slot in the C-profile rail. In particular, the sheet metal strip with the breakthrough is welded onto the first side of the C-profile rail or otherwise attached to it, for example by riveting, so that the breakthrough only partially covers the slot. In particular, a width of the opening corresponds to the transverse width of the slot in the C-profile rail

Der Oberflächenanker, genauer formuliert die Lasche des Oberflächenankers, ist so an der C-Profilschiene angeordnet, dass er bei in vorgesehener Weise einbetonierter C-Profilschiene zur Seite von der C-Profilschiene absteht und auf der Oberfläche des Betons aufliegt oder bündig mit der Oberfläche des Betons abschließt. Der oder die Oberflächenanker weisen ein Verankerungsmittel in einem Abstand von der C-Profilschiene insbesondere an einem Ende der Lasche auf. Das Verankerungsmittel ist allgemein eine Möglichkeit oder Einrichtung zu einer Befestigung des Oberflächenankers am Beton. Es kann sich beispielsweise um ein Loch in der Lasche handeln, durch das der Oberflächenanker mittels eines Befestigungsmittels, beispielsweise einem Bolzenanker, einer Betonschraube, einer im Beton chemisch befestigten Ankerstange oder dergleichen an dem Beton festlegbar ist. Möglich ist eine Festlegung des Oberflächenankers beispielsweise auch durch Aufkleben auf den Beton, wobei hier ein Flächenmittelpunkt einer Klebefläche den Abstand von der C-Profilschiene aufweist, wenn der Klebstoff bis zur C-Profilschiene heran reicht. Das Verankerungselement ist in diesem Fall der Klebstoff. Der Oberflächenanker kann jedoch auch derart tief einem Bauwerksteil aus Beton verankert, insbesondere in das Bauwerksteil eingegossen sein, dass dieser mit der Oberfläche des Betons, respektive des Bauwerkteils insbesondere bündig ist. Der Oberflächenanker schließt also insbesondere bündig mit der Oberfläche ab. Bei dieser geplanten Art der Verankerung der C-Profilschiene in Beton wird somit der Oberflächenanker zumindest teilweise stoffschlüssig mit dem Beton verbunden und die Verankerungsmittel werden hierbei insbesondere ebenfalls zumindest teilweise in den Beton mit eingegossen. In diesem Fall sind die Verankerungsmittel insbesondere Löcher, Bolzen, Wellenanker oder dergleichen. Der Vorteil der geplanten Art der Verankerung liegt darin begründet, dass die Oberfläche des Betons im Wesentlichen komplett nutzbar ist und nicht durch den Oberflächenanker blockiert ist. Bei der nachträglichen Verankerung liegt der Oberflächenanker auf der C-Profilschiene auf und folglich ergibt sich dadurch eine möglicherweise störende Erhebung auf der sonst ebenen Oberfläche des Betons.The surface anchor, or more precisely the tab of the surface anchor, is arranged on the C-profile rail in such a way that when the C-profile rail is concreted in in the intended manner, it protrudes to the side from the C-profile rail and rests on the surface of the concrete or is flush with the surface of the Concrete completes. The surface anchor or anchors have an anchoring means at a distance from the C-profile rail, in particular at one end of the tab. The anchoring means is generally a possibility or device for attaching the surface anchor to the concrete. For example, it can be a hole in the tab through which the Surface anchor can be fixed to the concrete by means of a fastener, for example a bolt anchor, a concrete screw, an anchor rod chemically fastened in the concrete or the like. It is also possible to fix the surface anchor, for example, by gluing it to the concrete, in which case the center of an adhesive surface is at a distance from the C-profile rail if the adhesive reaches up to the C-profile rail. The anchoring element in this case is the adhesive. However, the surface anchor can also be anchored so deeply in a building part made of concrete, in particular cast into the building part, that it is in particular flush with the surface of the concrete, or the building part. The surface anchor is therefore particularly flush with the surface. In this planned type of anchoring of the C-profile rail in concrete, the surface anchor is at least partially cohesively connected to the concrete and the anchoring means are in particular also at least partially cast into the concrete. In this case, the anchoring means are in particular holes, bolts, wave anchors or the like. The advantage of the planned type of anchoring is that the surface of the concrete is essentially completely usable and is not blocked by the surface anchor. During subsequent anchoring, the surface anchor rests on the C-profile rail, resulting in a potentially disruptive bump on the otherwise flat surface of the concrete.

Die Erfindung hat zum einen den Vorteil, dass eine bereits einbetonierte C-Profilschiene einer Ankerschiene nachträglich gegen eine Querkraftbelastung gesichert, sprich rückverankert werden kann. Das kann bei einer randnahen Anordnung der C-Profilschiene in Beton vorteilhaft oder sogar notwendig sein, wenn ein Ausbruch des Betons seitlich der C-Profilschiene am Rand des Betons zu befürchten oder bereits aufgetreten ist. Eine Verhinderung des Betonausbruchs liefert auch das geplante Verankern der C-Profilschiene, wobei hierbei, wie bereits erwähnt, die komplette Oberfläche des Betons genutzt werden kann.On the one hand, the invention has the advantage that a C-profile rail of an anchor rail that has already been set in concrete can be subsequently secured against transverse force loading, i.e. anchored back. This can be advantageous or even necessary if the C-profile rail is arranged close to the edge in concrete if there is a risk of the concrete breaking out to the side of the C-profile rail at the edge of the concrete or has already occurred. The planned anchoring of the C-profile rail also prevents concrete from breaking out, whereby, as already mentioned, the entire surface of the concrete can be used.

Erfindungsgemäß ist der Oberflächenanker, genauer formuliert die Lasche, an einer mit der ersten, den Schlitz aufweisenden Seite der C-Profilschiene bündigen Ebene seitlich von der C-Profilschiene an beziehungsweise von deren dritter Seite abstehen oder die mit der ersten Seite der C-Profilschiene bündigen Ebene durchsetzen. Die dritte Seite ist die an die erste, den Schlitz aufweisenden Seite angrenzende Seite der C-Profilschiene. Im ersten Fall liegt der Oberflächenanker auf der Oberfläche des Betons auf, wenn die C-Profilschiene wie vorgesehen einbetoniert ist. Im zweiten Fall dringt der Oberflächenanker seitlich von der C-Profilschiene in den Beton ein. Der zweite Fall ist für ein ursprüngliches Anbringen des Oberflächenankers an der C-Profilschiene vorgesehen, so dass der Oberflächenanker beim Einbetonieren der C-Profilschiene ebenfalls einbetoniert wird und nicht nachträglich in den Beton versenkt werden muss. Diese Ausführung hat, wie bereits erwähnt, den Vorteil, dass der Oberflächenanker nicht auf seiner vollen Länge auf dem Beton aufliegt, sondern sich teilweise oder gänzlich im Beton befindet.According to the invention, the surface anchor, or more precisely the tab, protrudes laterally from the C-profile rail or from its third side on a plane flush with the first side of the C-profile rail that has the slot, or is flush with the first side of the C-profile rail enforce level. The third side is the side of the C-profile rail adjacent to the first side having the slot. In the first case, the surface anchor rests on the surface of the concrete when the C-profile rail is concreted in as intended. In the second case, the surface anchor penetrates into the concrete from the side of the C-profile rail. The second case is intended for initially attaching the surface anchor to the C-profile rail, so that the surface anchor is also concreted in when the C-profile rail is set in concrete and does not have to be subsequently sunk into the concrete. As already mentioned, this version has the advantage that the surface anchor does not rest on the concrete over its full length, but is partially or completely in the concrete.

Eine Befestigung des Oberflächenankers an der C-Profilschiene ist beispielsweise durch Einhängen des Oberflächenankers in den Schlitz der C-Profilschiene möglich. Die Einhängung muss nur in der Richtung, in der der Oberflächenanker von der C-Profilschiene absteht, zugfest sein, das heißt eine Querkraft der C-Profilschiene als Zugkraft auf den Oberflächenanker übertragen können. Das Einhängen des Oberflächenankers in den Schlitz der C-Profilschiene ist eine einfache, schnelle und preisgünstige Möglichkeit des Verbindens des Oberflächenankers mit der C-Profilschiene.Attaching the surface anchor to the C-profile rail is possible, for example, by hanging the surface anchor in the slot of the C-profile rail. The suspension only needs to be tensile-resistant in the direction in which the surface anchor protrudes from the C-profile rail, i.e. it must be able to transmit a transverse force from the C-profile rail as a tensile force to the surface anchor. Hanging the surface anchor in the slot of the C-profile rail is a simple, quick and inexpensive way to connect the surface anchor to the C-profile rail.

Der Oberflächenanker kann einen Einfachhaken aufweisen, der zum Verbinden mit der C-Profilschiene einen ersten Schlitzrand des Schlitzes der C-Profilschiene umgreift, so dass er eine Querkraft der C-Profilschiene als Zugkraft auf den Oberflächenanker überträgt. Der Oberflächenanker kann auch einen Doppelhaken aufweisen, der den ersten Schlitzrand des Schlitzes der C-Profilschiene umgreift und einen gegenüberliegenden zweiten Schlitzrand des Schlitzes der C-Profilschiene untergreift, wenn der Doppelhaken beziehungsweise der Oberflächenanker mit der C-Profilschiene verbunden ist, so dass der Doppelhaken nicht ohne Weiteres aus der C-Profilschiene herausgehoben werden kann.The surface anchor can have a single hook which, for connecting to the C-profile rail, surrounds a first slot edge of the slot in the C-profile rail, so that it transmits a transverse force of the C-profile rail as a tensile force to the surface anchor. The surface anchor can also have a double hook which surrounds the first slot edge of the slot in the C-profile rail and engages under an opposite second slot edge of the slot in the C-profile rail when the double hook or the surface anchor is connected to the C-profile rail, so that the double hook cannot be easily lifted out of the C-profile rail.

Zum Verbinden des Oberflächenankers mit der C-Profilschiene sieht eine andere Ausgestaltung der Erfindung einen an beziehungsweise in der C-Profilschiene befestigten Befestiger vor, der einen Schaft aufweist, der aus dem Schlitz in der ersten Seite der C-Profilschiene vorsteht. Bei dem Befestiger kann es sich beispielsweise um eine Hammerkopfschraube oder einen Nutenstein mit eingeschraubtem Gewindebolzen handeln. An dem aus dem Schlitz der C-Profilschiene vorstehenden Schaft des Befestigers ist der Oberflächenanker befestigt.To connect the surface anchor to the C-profile rail, another embodiment of the invention provides a fastener attached to or in the C-profile rail, which has a shaft that protrudes from the slot in the first side of the C-profile rail. The fastener can be, for example, a hammerhead screw or a sliding block with a screwed-in threaded bolt. The surface anchor is attached to the shaft of the fastener protruding from the slot in the C-profile rail.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung weist der Oberflächenanker auf einer der ersten Seite abgewandten Seite eine Oberflächenstrukturierung, insbesondere eine Verzahnung, auf. Hierdurch kann ein Befestiger, beispielsweise ein Befestiger wie im vorangegangenen Absatz beschrieben, gegen Verschiebung längs des Schlitzes der C-Profilschiene durch Form und/oder Reibschluss gesichert werden.In a further advantageous embodiment of the invention, the surface anchor has a surface structuring, in particular a toothing, on a side facing away from the first side. In this way, a fastener, for example a fastener as described in the previous paragraph, can be secured against displacement along the slot of the C-profile rail by means of shape and/or friction.

Eine Ausgestaltung der Erfindung sieht vor, dass der Oberflächenanker die C-Profilschiene mit einer zweiten C-Profilschiene verbindet, die in einem Abstand von der einen C-Profilschiene angeordnet ist. Der Oberflächenanker trägt die Last von der einen C-Profilschiene auf die andere, in einem Abstand angeordnete C-Profilschiene ab.One embodiment of the invention provides that the surface anchor connects the C-profile rail with a second C-profile rail, which is arranged at a distance from the one C-profile rail. The surface anchor transfers the load from one C-profile rail to the other C-profile rail, which is arranged at a distance.

Eine Ausgestaltung der Erfindung sieht vor, dass der Oberflächenanker eine pseudoplastisch gedehnte Formgedächtnislegierung aufweist oder aus einer pseudoplastisch gedehnten Formgedächtnislegierung besteht. Formgedächtnislegierungen sind Metalllegierungen, die durch eine Phasenumwandlung ihrer Kristallstrukturen, insbesondere zwischen Martensit und Austenit, ihre Form ändern. Die Phasenumwandlung und Formänderung erfolgt bei Erreichen oder Überschreiten einer Umwandlungstemperatur. Zuvor muss die Formgedächtnislegierung pseudoplastisch verformt werden, was typischerweise, aber nicht zwingend, durch eine mechanische Verformung erfolgt, die anschließend durch Erwärmung auf oder über die Umwandlungstemperatur vollständig oder teilweise rückgängig gemacht werden kann. Es sind auch Formgedächtnislegierungen mit einem Zweiweg-Effekt bekannt, die sich bei hoher Temperatur umformen und bei niedriger Temperatur vollständig oder teilweise rückumformen. Bei dieser Ausgestaltung der Erfindung lässt sich eine Zugspannung im Oberflächenanker erzeugen, nachdem der Oberflächenanker an oder in dem Beton festgelegt worden ist, indem der Oberflächenanker auf oder über die Umwandlungstemperatur der Formgedächtnislegierung erwärmt wird, das heißt, der Oberflächenanker wird vorgespannt.One embodiment of the invention provides that the surface anchor has a pseudoplastically stretched shape memory alloy or consists of a pseudoplastically stretched shape memory alloy. Shape memory alloys are metal alloys that change their shape through a phase transformation of their crystal structures, especially between martensite and austenite. The phase transformation and shape change occurs when a transformation temperature is reached or exceeded. Beforehand, the shape memory alloy must be pseudoplastically deformed, which typically, but not necessarily, occurs through mechanical deformation, which can then be completely or partially reversed by heating to or above the transformation temperature. Shape memory alloys with a two-way effect are also known, which deform at high temperature and completely or partially reshape at low temperature. In this embodiment of the invention, a tensile stress can be generated in the surface anchor after the surface anchor has been fixed to or in the concrete by heating the surface anchor to or above the transformation temperature of the shape memory alloy, that is, the surface anchor is prestressed.

Eine Ausgestaltung der Erfindung sieht einen elastisch und/oder plastisch verformbaren Streifen außen an einer an die erste Seite angrenzenden und der dritten Seite gegenüberliegenden vierten Seite der C-Profilschiene vor. Die erste Seite weist den Schlitz auf und von der angrenzenden dritten Seite steht der Oberflächenanker ab. Der verformbare Streifen befindet sich also außen an der C-Profilschiene gegenüber der Seite, von der der Oberflächenanker absteht. Vorzugsweise nimmt der verformbare Streifen eine gesamte Fläche der vierten Seite der C-Profilschiene ein. Der verformbare Streifen ermöglicht eine geringe Verlagerung der C-Profilschiene im Beton in einer Richtung quer zur C-Profilschiene entgegengesetzt zu der Richtung, in der der Oberflächenanker von der C-Profilschiene absteht. Die geringe Verlagerung durch eine Kompression des Streifens ermöglicht es insbesondere den Einfach- und den Doppelhaken, sich in dem Schlitz der C-Profilschiene spannend festzulegen, bevor die C-Profilschiene in Kontakt zum Beton tritt. Anders gesprochen ist es möglich, dass ein gewisses Spiel zwischen den Einfach- und den Doppelhaken und der C-Profilschiene kompensiert werden kann, bevor die C-Profilschiene in den eigentlichen Kontakt zum Beton tritt.One embodiment of the invention provides an elastically and/or plastically deformable strip on the outside of a fourth side of the C-profile rail adjacent to the first side and opposite the third side. The first side has the slot and the surface anchor protrudes from the adjacent third side. The deformable strip is therefore located on the outside of the C-profile rail opposite the side from which the surface anchor protrudes. The deformable strip preferably occupies an entire area of the fourth side of the C-profile rail. The deformable strip enables a slight displacement of the C-profile rail in the concrete in a direction transverse to the C-profile rail opposite to the direction in which the surface anchor protrudes from the C-profile rail. The slight displacement caused by compression of the strip enables the single and double hooks in particular to be clamped tightly in the slot of the C-profile rail before the C-profile rail comes into contact with the concrete. In other words, it is possible that there is some play between the simple and the double hook and the C-profile rail can be compensated for before the C-profile rail comes into actual contact with the concrete.

Zur Erläuterung der erfindungsgemäßen Befestigungsanordnung werden die vorstehenden Erläuterungen der Ankerschiene in Bezug genommen In einer erfindungsgemäßen Befestigungsanordnung zur Rückverankerung der Ankerschiene ist die C-Profilschiene der Ankerschiene so versenkt in einem Bauwerksteil aus Beton verankert, dass ihre den Schlitz aufweisende erste Seite bündig mit einer Oberfläche des Bauwerkteils ist. Zudem ist der Oberflächenanker an der ersten Seite mit der C-Profilschiene verbunden und steht an der an die erste Seite angrenzenden dritten Seite von der C-Profilschiene ab. Der Oberflächenanker, genauer formuliert die Lasche, liegt hierbei auf der Oberfläche des Bauwerkteils auf und ist mit Abstand zur C-Profilschiene an dem Bauwerkteil festgelegt oder dringt seitlich von der C-Profilschiene in das Bauwerkteil ein.To explain the fastening arrangement according to the invention, the above explanations of the anchor rail are referred to. In a fastening arrangement according to the invention for anchoring the anchor rail back, the C-profile rail of the anchor rail is anchored recessed in a structural part made of concrete in such a way that its first side, which has the slot, is flush with a surface of the part of the building. In addition, the surface anchor is connected to the C-profile rail on the first side and protrudes from the C-profile rail on the third side adjacent to the first side. The surface anchor, or more precisely the tab, rests on the surface of the building part and is fixed to the building part at a distance from the C-profile rail or penetrates the side of the C-profile rail into the building part.

Insbesondere ist in dieser Befestigungsanordnung die C-Profilschiene nahe an einer Kante des Bauwerkteils, also randnah, und insbesondere parallel zur Kante des Bauwerkteils angeordnet. "Nahe" meint hier, dass der Abstand der C-Profilschiene von der Kante maximal dem Doppelten der Länge der C-Profilschiene entspricht, insbesondere dass der Abstand geringer als die Länge der Profilschiene ist. Der Oberflächenanker, genauer formuliert die Lasche des Oberflächenankers, erstreckt sich in einem insbesondere rechten Winkel zur C-Schiene von der Kante des Bauwerkteils weg. Die Lasche des Oberflächenankers ist also der Kante abgewandt. Die Lasche ist insbesondere an einem Laschenende, welches der C-Profilschiene abgewandt ist, auf der Oberfläche des Bauwerkteils oder im Bauwerkteil selbst festgelegt, wodurch eine stabile Rückverankerung der Ankerschiene gewährleistet ist. Durch die erfindungsgemäße Befestigungsanordnung können Ankerschienen somit sicher in Randnähe in einem Bauteil eingegossen werden ohne dass die Gefahr besteht, dass sie bei Belastung aus dem Bauwerkteil herausbrechen.In particular, in this fastening arrangement, the C-profile rail is arranged close to an edge of the structural part, i.e. close to the edge, and in particular parallel to the edge of the structural part. “Near” here means that the distance of the C-profile rail from the edge corresponds to a maximum of twice the length of the C-profile rail, in particular that the distance is less than the length of the profile rail. The surface anchor, or more precisely the tab of the surface anchor, extends away from the edge of the structural part at a particularly right angle to the C-rail. The tab of the surface anchor is therefore facing away from the edge. The tab is fixed, in particular at a tab end that faces away from the C-profile rail, on the surface of the building part or in the building part itself, which ensures a stable anchoring of the anchor rail. Thanks to the fastening arrangement according to the invention, anchor rails can therefore be safely cast into a component near the edge without the risk of them breaking out of the structural part under load.

Die C-Profilschiene kann wie bereits beschrieben, auch derart tief versenkt in dem Bauwerksteil aus Beton verankert, insbesondere in das Bauwerksteil eingegossen sein, dass der Oberflächenanker bündig mit der Oberfläche des Bauwerkteils ist.As already described, the C-profile rail can also be anchored so deeply recessed in the concrete structural part, in particular cast into the structural part, that the surface anchor is flush with the surface of the structural part.

Die Erfindung wird nachfolgend anhand in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert. Die fünf Figuren zeigen fünf Ausführungsbeispiele in perspektivischer Darstellung. Aus Gründen der Übersichtlichkeit und der Einfachheit werden in allen Figuren identische Bezugszeichen verwendet.The invention is explained in more detail below using exemplary embodiments shown in the drawing. The five figures show five exemplary embodiments in perspective. For reasons of clarity and simplicity, identical reference numbers are used in all figures.

Die in Figur 1 dargestellte, Ankerschiene 1 weist eine C-Profilschiene 2 auf, die ein Rechteck-Hohlprofil mit einem in Längsrichtung durchgehenden Schlitz 3 in einer ersten Seite 4 aufweist, die auch als Oberseite der C-Profilschiene 2 bezeichnet werden kann.In the Figure 1 illustrated, anchor rail 1 has a C-profile rail 2, which has a rectangular hollow profile with a longitudinally continuous slot 3 in a first side 4, which can also be referred to as the top of the C-profile rail 2.

Die Ankerschiene 1 beziehungsweise ihre C-Profilschiene 2 ist zu einem Einbetonieren in einem Bauwerksteil 5 wie beispielsweise einen Betonboden so vorgesehen, dass, wie in Figur 1 zu sehen, die erste, den Schlitz 3 aufweisende Seite 4 der C-Profilschiene 2 bündig mit einer Oberfläche des Bauwerksteils 5 und die C-Profilschiene 2 im Übrigen in das Bauwerksteil 5 versenkt ist. Vom Bauwerksteil 5 sind nur einzelne Kanten gezeichnet und es ist durchsichtig gezeichnet, damit die Ankerschiene 1 sichtbar ist.The anchor rail 1 or its C-profile rail 2 is intended to be embedded in concrete in a structural part 5 such as a concrete floor in such a way that, as in Figure 1 can be seen, the first side 4 of the C-profile rail 2, which has the slot 3, is flush with a surface of the structural part 5 and the C-profile rail 2 is otherwise sunk into the structural part 5. Only individual edges of the building part 5 are drawn and it is drawn transparently so that the anchor rail 1 is visible.

Von einer der ersten Seite 4 gegenüberliegenden zweiten Seite 6, die auch als Unterseite der C-Profilschiene 2 bezeichnet werden kann, stehen Verankerungselemente 7 ab, die an der zweiten Seite 6 der C-Profilschiene 2 befestigt, beispielsweise angeschweißt sind. Im Ausführungsbeispiel sind die Verankerungselemente 7 Bolzen mit flanschförmigen Füßen 8 an ihren der C-Profilschiene 2 fernen Enden. Die Verankerungselemente 7 sind in den Beton des Bauwerksteils 5 eingebettet und halten die C-Profilschiene 2 gegen ein Herausreißen aus dem Bauwerksteil 5 senkrecht zu dessen Oberfläche. Im Ausführungsbeispiel sind die Verankerungselemente 7 in einer Längsmittelebene der C-Profilschiene 2 angeordnet. Die Verankerungselemente 7 können beispielsweise auch in der Längsrichtung der C-Profilschiene 2 gesehen V-förmig schräg auseinander von der zweiten Seite 6 der C-Profilschiene 2 abstehen und in das Bauwerksteil 5 ragen (nicht dargestellt).Anchoring elements 7 protrude from a second side 6 opposite the first side 4, which can also be referred to as the underside of the C-profile rail 2, and are fastened, for example welded, to the second side 6 of the C-profile rail 2. In the exemplary embodiment, the anchoring elements 7 are bolts with flange-shaped feet 8 at their ends remote from the C-profile rail 2. The anchoring elements 7 are embedded in the concrete of the structural part 5 and hold the C-profile rail 2 against being torn out of the structural part 5 perpendicular to its surface. In the In the exemplary embodiment, the anchoring elements 7 are arranged in a longitudinal center plane of the C-profile rail 2. The anchoring elements 7 can, for example, also protrude from the second side 6 of the C-profile rail 2 in a V-shape, viewed in the longitudinal direction of the C-profile rail 2, and protrude into the structural part 5 (not shown).

In den Schlitz 3 der C-Profilschiene 2 ist ein im Ausführungsbeispiel streifenförmiger Oberflächenanker 9 eingehängt, der auf der ersten Seite 4 der C-Profilschiene 2 aufliegt und an beziehungsweise von einer an die erste Seite 4 angrenzenden dritten Seite 10 der C-Profilschiene 2 als Lasche absteht. Der Oberflächenanker9 liegt auf der Oberfläche des Bauwerksteils 5 auf. An einem Ende weist der Oberflächenanker 9 einen Einfachhaken 11 auf, der einen ersten Schlitzrand 12 des Schlitzes 3 der C-Profilschiene 2 umgreift und auf diese Weise den Oberflächenanker 9 zugfest mit der C-Profilschiene 2 verbindet. Mit "zugfest" ist gemeint, dass der in den Schlitz 3 der C-Profilschiene 2 eingehängte Einfachhaken 11 des Oberflächenankers 9 eine quer zur C-Profilschiene 2 wirkende Querkraft als in einer Längsrichtung des Oberflächenankers 9 wirkende Zugkraft auf den Oberflächenanker 9 überträgt.In the slot 3 of the C-profile rail 2, a strip-shaped surface anchor 9 is suspended in the exemplary embodiment, which rests on the first side 4 of the C-profile rail 2 and on or from a third side 10 of the C-profile rail 2 adjacent to the first side 4 Tab sticks out. The surface anchor 9 rests on the surface of the structural part 5. At one end, the surface anchor 9 has a single hook 11, which surrounds a first slot edge 12 of the slot 3 of the C-profile rail 2 and in this way connects the surface anchor 9 to the C-profile rail 2 in a tensile manner. By "tensile strength" is meant that the single hook 11 of the surface anchor 9 suspended in the slot 3 of the C-profile rail 2 transmits a transverse force acting transversely to the C-profile rail 2 as a tensile force acting in a longitudinal direction of the surface anchor 9 to the surface anchor 9.

Nahe einem der C-Profilschiene 2 der Ankerschiene 1 fernen Ende und jedenfalls in einem Abstand von der C-Profilschiene 2 weist der Oberflächenanker 9 an einem Ende der Lasche ein Loch auf, das hier verallgemeinernd als Verankerungsmittel 13 des Oberflächenankers 9 bezeichnet wird. Durch das das Verankerungsmittel 13 bildende Loch in der Lasche ist der Oberflächenanker 9 mit Abstand von der C-Profilschiene 2 an dem Bauwerksteil 5 festlegbar und dient so der Rückverankerung der C-Profilschiene 2. Dazu kann beispielsweise eine Schraube durch das als Loch ausgebildete Verankerungsmittel 13 des Oberflächenankers 9 in einen Spreizdübel geschraubt werden, der in dem Bauwerksteil 5 aufgespreizt und verankert ist (nicht dargestellt).Near an end remote from the C-profile rail 2 of the anchor rail 1 and in any case at a distance from the C-profile rail 2, the surface anchor 9 has a hole at one end of the tab, which is generally referred to here as anchoring means 13 of the surface anchor 9. Through the hole in the tab forming the anchoring means 13, the surface anchor 9 can be fixed to the structural part 5 at a distance from the C-profile rail 2 and thus serves to anchor the C-profile rail 2 back. For this purpose, for example, a screw can be inserted through the anchoring means 13 designed as a hole of the surface anchor 9 are screwed into an expansion dowel, which is spread and anchored in the structural part 5 (not shown).

Die Festlegung des Oberflächenankers 9 kann beispielsweise auch durch Kleben auf die Oberfläche des Bauwerksteils 5 erfolgen. In diesem Fall bildet der Klebstoff das Verankerungsmittel, das den Oberflächenanker 9 auch dann mit Abstand von der C-Profilschiene 2 mit dem Bauwerksteil 5 verbindet, wenn der Klebstoff bis zur C-Profilschiene 2 auf den Oberflächenanker 9 aufgetragen ist.The surface anchor 9 can also be fixed, for example, by gluing it to the surface of the structural part 5. In this case, the adhesive forms the anchoring means, which connects the surface anchor 9 to the structural part 5 at a distance from the C-profile rail 2 even when the adhesive is applied to the surface anchor 9 up to the C-profile rail 2.

An einer vierten Seite 14 weist die C-Profilschiene 2 außen einen verformbaren Streifen 15 auf, der die vierte Seite 14 der C-Profilschiene 2 vollständig oder nahezu vollständig bedeckt. Im Ausführungsbeispiel besteht der Streifen 15 aus einem elastischen, festen Schaum. Die vierte Seite 14 der C-Profilschiene 2 grenzt an deren erste Seite 4 mit dem Schlitz 3 und an die gegenüberliegende zweite Seite 6, von der die Verankerungselemente 7 abstehen, an. Die vierte Seite 14 der C-Profilschiene 2 befindet sich der dritten Seite 10 gegenüber, an beziehungsweise von der der Oberflächenanker 9 absteht. Der verformbare Streifen 15 ermöglicht eine geringe Bewegung der C-Profilschiene 2 in dem Bauwerksteil 5 quer zur C-Profilschiene 2, parallel zu der Oberfläche des Bauwerksteils 5 und weg von dem Oberflächenanker 9, wenn die C-Profilschiene 2 quer zu sich, das heißt längs zu dem Oberflächenanker 9 und von diesem weg belastet wird. Ein frühzeitiger Ausbruch des Betons des Bauwerksteils 5 bei einer solchen Querbeanspruchung der C-Profilschiene 2 wird dadurch vermieden.On a fourth side 14, the C-profile rail 2 has a deformable strip 15 on the outside, which covers the fourth side 14 of the C-profile rail 2 completely or almost completely covered. In the exemplary embodiment, the strip 15 consists of an elastic, solid foam. The fourth side 14 of the C-profile rail 2 borders on its first side 4 with the slot 3 and on the opposite second side 6, from which the anchoring elements 7 protrude. The fourth side 14 of the C-profile rail 2 is located opposite the third side 10, on or from which the surface anchor 9 protrudes. The deformable strip 15 allows a slight movement of the C-profile rail 2 in the structural part 5 transversely to the C-profile rail 2, parallel to the surface of the structural part 5 and away from the surface anchor 9, when the C-profile rail 2 is transverse to itself, that is is loaded longitudinally to the surface anchor 9 and away from it. This prevents the concrete of the structural part 5 from breaking out prematurely when the C-profile rail 2 is subjected to such transverse stress.

Die C-Profilschiene 2 der Ankerschiene 1 weist vorzugsweise mehrere Oberflächenanker 9 auf, die quer zur C-Profilschiene 2, parallel zueinander und mit Abständen in der Längsrichtung der C-Profilschiene 2 voneinander in den Schlitz 3 der C-Profilschiene 2 eingehängt und am Bauwerksteil 5 festgelegt sind. Die Oberflächenanker 9 sichern die C-Profilschiene 2 gegen eine Querkraft und vermeiden einen Ausbruch des Betons insbesondere bei einer randnahen Anordnung der C-Profilschiene 2 im Bauwerksteil 5. Die Oberflächenanker 9 stehen auf einer dem der C-Profilschiene 2 nahen Rand 16 des Bauwerksteils 5 gegenüberliegenden Seite von der C-Profilschiene 2 ab.The C-profile rail 2 of the anchor rail 1 preferably has a plurality of surface anchors 9, which are suspended transversely to the C-profile rail 2, parallel to one another and at distances from one another in the longitudinal direction of the C-profile rail 2 in the slot 3 of the C-profile rail 2 and on the structural part 5 are set. The surface anchors 9 secure the C-profile rail 2 against a transverse force and prevent the concrete from breaking out, especially when the C-profile rail 2 is arranged close to the edge in the building part 5. The surface anchors 9 stand on an edge 16 of the building part 5 that is close to the C-profile rail 2 opposite side of the C-profile rail 2.

Wie in Figur 1 mit Strichlinien dargestellt, kann der Oberflächenanker 9 auch abgewinkelt sein, so dass er seitlich neben der C-Profilschiene 2 in den Beton des Bauwerksteils 5 eindringt und die C-Profilschiene 2 am Bauwerksteil 5 gegen eine Querkraft sichert. In diesem Fall durchdringt der Oberflächenanker 9 die Oberfläche des Bauwerksteils 5 seitlich neben der C-Profilschiene 2, wobei die Oberfläche des Bauwerksteils 5 bündig mit der ersten Seite 4 der C-Profilschiene 2 ist und somit eine mit der ersten Seite 4 der C-Profilschiene 2 bündige Ebene bildet.As in Figure 1 shown with dashed lines, the surface anchor 9 can also be angled so that it penetrates into the concrete of the structural part 5 next to the C-profile rail 2 and secures the C-profile rail 2 on the structural part 5 against a transverse force. In this case, the surface anchor 9 penetrates the surface of the structural part 5 laterally next to the C-profile rail 2, the surface of the structural part 5 being flush with the first side 4 of the C-profile rail 2 and thus one with the first side 4 of the C-profile rail 2 flush levels.

In Figur 2 weist der Oberflächenanker 9 einen Doppelhaken 17 anstelle des Einfachhakens 11 an seinem Ende auf. Wie der Einfachhaken 11 umgreift der Doppelhaken 17 den ersten Schlitzrand 12 des Schlitzes 3 der C-Profilschiene 2 und greift zusätzlich unter einen dem ersten Schlitzrand 12 gegenüberliegenden zweiten Schlitzrand 18, so dass der Doppelhaken 17 nicht aus dem Schlitz 3 herausgezogen und der Oberflächenanker 9 nicht von der ersten Seite 4 der C-Profilschiene 2 abgehoben werden kann.In Figure 2 the surface anchor 9 has a double hook 17 instead of the single hook 11 at its end. Like the single hook 11, the double hook 17 encompasses the first slot edge 12 of the slot 3 of the C-profile rail 2 and also reaches under a second slot edge 18 opposite the first slot edge 12, so that the double hook 17 is not pulled out of the slot 3 and the surface anchor 9 is not can be lifted from the first side 4 of the C-profile rail 2.

Bei dem in Figur 3 dargestellten Ausführungsbeispiel der Erfindung verbindet eine Hammerkopfschraube 19 den Oberflächenanker 9 mit der C-Profilschiene 2. Die Hammerkopfschraube 19, die allgemein auch als Befestiger 20 aufgefasst werden kann, ist mit ihrem Hammerkopf 21 in die C-Profilschiene 2 eingehängt, so dass ihr Schaft 22 auf der ersten Seite 4 aus dem Schlitz 3 der C-Profilschiene 2 vorsteht. Anstelle des Hakens 11, 17 weist der Oberflächenanker 9 bei diesem Ausführungsbeispiel der Erfindung ein Loch auf, das der Schaft 22 der Hammerkopfschraube 19, die den Befestiger 20 bildet, durchgreift, so dass der Oberflächenanker 9 am Schlitz 3 der C-Profilschiene 2 eingehängt und auf diese Weise mit der C-Profilschiene 2 verbunden ist. An dem aus der C-Profilschiene 2 und zugleich aus dem Bauwerksteil 5 vorstehenden Schaft 22 der den Befestiger 20 bildenden Hammerkopfschraube 19 kann ein nicht dargestelltes Bauteil, beispielsweise ein Maschinengestell befestigt werden.At the in Figure 3 In the illustrated embodiment of the invention, a hammerhead screw 19 connects the surface anchor 9 to the C-profile rail 2. The hammerhead screw 19, which can also generally be understood as a fastener 20, is suspended with its hammerhead 21 in the C-profile rail 2, so that its shaft 22 on the first side 4 protrudes from the slot 3 of the C-profile rail 2. Instead of the hook 11, 17, the surface anchor 9 in this exemplary embodiment of the invention has a hole through which the shaft 22 of the hammer head screw 19, which forms the fastener 20, passes through, so that the surface anchor 9 is hooked into the slot 3 of the C-profile rail 2 and is connected in this way to the C-profile rail 2. A component (not shown), for example a machine frame, can be attached to the shaft 22 of the hammerhead screw 19 forming the fastener 20, which protrudes from the C-profile rail 2 and at the same time from the structural part 5.

Bei dem in Figur 4 dargestellten Ausführungsbeispiel der Erfindung sind zwei C-Profilschienen 2 mit Abstand voneinander und parallel zueinander mit ihren den Schlitz 3 aufweisenden ersten Seiten 4 bündig mit der Oberfläche des Bauwerksteils 5 in dieses versenkt angeordnet. Mehrere quer zu den C-Profilschienen 2 und parallel zueinander angeordnete Oberflächenanker 9 verbinden die beiden C-Profilschienen 2, wodurch eine nahe einem Rand des Bauwerksteils 5 angeordnete C-Profilschiene 2 an einer weiter von dem Rand des Bauwerksteils 5 entfernten C-Profilschiene 2 gesichert werden kann. In Figur 4 ist nur ein Oberflächenanker 9 dargestellt.At the in Figure 4 Illustrated embodiment of the invention, two C-profile rails 2 are arranged at a distance from one another and parallel to one another with their first sides 4 having the slot 3 flush with the surface of the structural part 5 and sunk into it. Several surface anchors 9 arranged transversely to the C-profile rails 2 and parallel to one another connect the two C-profile rails 2, whereby a C-profile rail 2 arranged near an edge of the structural part 5 is secured to a C-profile rail 2 further away from the edge of the structural part 5 can be. In Figure 4 only a surface anchor 9 is shown.

Bei dem in Figur 5 dargestellten Ausführungsbeispiel ist der Oberflächenanker 9 durch zwei Laschen mit jeweils einem Verankerungsmittel 13 sowie einem Blechstreifen 25, der einen Durchbruch 26 aufweist, gebildet. Der Blechstreifen 25 ist so auf der ersten Seite 4 der C-Profilschiene 2 angeschweißt, dass der Durchbruch 26 parallel zum Schlitz 3 orientiert ist und somit den Schlitz 3 der C-Profilschiene 2 nicht verdeckt. Der wesentliche Unterschied des Ausführungsbeispiels der Figur 5 verglichen mit den vorangegangenen Ausführungsbeispielen ist, dass nicht die erste Seite 4 der C-Profilschiene 2 bündig mit der Oberfläche des Bauwerksteils 5 ist, sondern dass der Oberflächenanker 9 bündig mit der Oberfläche des Bauteils 5 abschließt. Dadurch kann die komplette Oberfläche des Bauteils 5 genutzt werden, da kein Überstand durch den Oberflächenanker 9 entsteht. Die C-Profilschiene 2 ist zusammen mit dem Oberflächenanker 9 in das Bauwerksteil 5 eingegossen.At the in Figure 5 In the exemplary embodiment shown, the surface anchor 9 is formed by two tabs, each with an anchoring means 13 and a sheet metal strip 25 which has an opening 26. The sheet metal strip 25 is welded onto the first side 4 of the C-profile rail 2 in such a way that the opening 26 is oriented parallel to the slot 3 and thus does not cover the slot 3 of the C-profile rail 2. The main difference of the exemplary embodiment Figure 5 Compared to the previous exemplary embodiments, it is not the first side 4 of the C-profile rail 2 that is flush with the surface of the structural part 5, but that the surface anchor 9 is flush with the surface of the component 5. This means that the entire surface of the component 5 can be used, since there is no protrusion through the surface anchor 9. The C-profile rail 2 is cast into the structural part 5 together with the surface anchor 9.

Der Oberflächenanker 9 weist eine Oberflächenstrukturierung 23 in Form einer Verzahnung 24 auf. Dadurch kann beispielsweise eine Hammerkopfschraube, die mittels einer verzahnten Unterlegscheibe in dem Schlitz 3 befestigt ist, gegen ein Verrutschen in Schienenlängsrichtung, also entlang des Schlitzes 3, gesichert werden (nicht dargestellt). Hierbei greift die verzahnte Unterlegscheibe in die Verzahnung 24 ein.The surface anchor 9 has a surface structuring 23 in the form of a toothing 24. This means, for example, that a hammer head screw can be used a toothed washer is fastened in the slot 3, secured against slipping in the longitudinal direction of the rail, i.e. along the slot 3 (not shown). The toothed washer engages with the teeth 24.

Der Oberflächenanker 9 kann aus einem grundsätzlich beliebigen Material, beispielsweise aus einem Metallstreifen bestehen. Möglich ist auch, dass der Oberflächenanker 9 aus Kunststoff, insbesondere aus faserverstärkten Kunststoff besteht. Beispielsweise kann der Oberflächenanker 9 aus einem Prepreg bestehen oder ein solches aufweisen. Ein Prepreg weist in ein Kunstharz eingebettete Fasern auf, wobei das Kunstharz zum Aufkleben auf die Oberfläche des Bauwerksteils 5 ausgehärtet werden kann (nicht dargestellt).The surface anchor 9 can consist of basically any material, for example a metal strip. It is also possible for the surface anchor 9 to be made of plastic, in particular of fiber-reinforced plastic. For example, the surface anchor 9 can consist of or have a prepreg. A prepreg has fibers embedded in a synthetic resin, whereby the synthetic resin can be cured for sticking to the surface of the structural part 5 (not shown).

Ein Ausführungsbeispiel der Erfindung sieht vor, dass der Oberflächenanker 9 aus einer pseudoplastisch gedehnten Formgedächtnislegierung besteht oder jedenfalls eine solche aufweist. Der Oberflächenanker 9 verkürzt sich, wenn er auf oder über eine Umwandlungstemperatur der Formgedächtnislegierung erwärmt wird. Das ermöglicht es, eine Zugspannung in dem Oberflächenanker 9 zu erzeugen, die die C-Profilschiene 2 quer zur C-Profilschiene 2 und parallel zur Oberfläche des Bauwerksteils 5 weg von dem der C-Profilschiene 2 nahen Rand des Bauwerksteils 5 vorspannt.An exemplary embodiment of the invention provides that the surface anchor 9 consists of, or at least has, a pseudoplastically stretched shape memory alloy. The surface anchor 9 shortens when heated to or above a transformation temperature of the shape memory alloy. This makes it possible to generate a tensile stress in the surface anchor 9, which biases the C-profile rail 2 transversely to the C-profile rail 2 and parallel to the surface of the structural part 5 away from the edge of the structural part 5 near the C-profile rail 2.

Die Ankerschiene 1 mit ihrer in das Bauwerksteil 5 eingebetteten C-Profilschiene 2, den von ihrer Unterseite abstehenden und ebenfalls in das Bauwerksteil 5 eingebetteten Verankerungselementen 7 und dem oder den Oberflächenankern 9, die am oder im Bauwerksteil 5 festgelegt sind, bilden eine erfindungsgemäße Befestigungsanordnung.The anchor rail 1 with its C-profile rail 2 embedded in the structural part 5, the anchoring elements 7 protruding from its underside and also embedded in the structural part 5 and the surface anchor or anchors 9, which are fixed on or in the structural part 5, form a fastening arrangement according to the invention.

BezugszeichenlisteReference symbol list Ankerschieneanchor rail

  1. 1 Ankerschiene1 anchor rail
  2. 2 C-Profilschiene2 C profile rail
  3. 3 Schlitz3 slot
  4. 4 erste Seite4 first page
  5. 5 Bauwerksteil5 part of the building
  6. 6 zweite Seite6 second page
  7. 7 Verankerungselement7 anchoring element
  8. 8 Fuß8 feet
  9. 9 Oberflächenanker9 surface anchors
  10. 10 dritte Seite10 third page
  11. 11 Einfachhaken11 single hooks
  12. 12 erster Schlitzrand12 first slit edge
  13. 13 Verankerungsmittel13 anchoring means
  14. 14 vierte Seite14 fourth page
  15. 15 Streifen15 strips
  16. 16 Rand16 Rand
  17. 17 Doppelhaken17 double hooks
  18. 18 zweiter Schlitzrand18 second slit edge
  19. 19 Hammerkopfschraube19 hammer head screw
  20. 20 Befestiger20 fasteners
  21. 21 Hammerkopf21 hammer head
  22. 22 Schaft22 shaft
  23. 23 Oberflächenstrukturierung23 Surface structuring
  24. 24 Verzahnung24 gearing
  25. 25 Blechstreifen25 sheet metal strips
  26. 26 Durchbruch26 breakthrough

Claims (11)

  1. Fastening arrangement having an anchor rail (1) for anchoring in concrete, having a C-profile rail (2) which comprises a slot (3) in a first side (4), and having an anchoring element (7) on a second side (6) opposite the first side,
    characterized in that the anchor rail (1) comprises a surface anchor (9) for providing tieback anchoring for the C-profile rail (2), which surface anchor rests on the first side (4) of the C-profile rail (2) and protrudes from the C-profile rail (2) from a third side (10) which is adjacent to the first side (4), the surface anchor (9) comprising an anchoring means (13) which is at a distance from the C-profile rail (2), the C-profile rail (2) being anchored in a structural part (5) made of concrete so as to be recessed in such a way that the first side (4) of the rail comprising the slot (3) is flush with a surface of the structural part (5), and that the surface anchor (9) is connected to the C-profile rail (2) on the first side (4) and protrudes from the C-profile rail (2) on the third side (10) adjacent to the first side (4), and the surface anchor (9) resting on the surface of the structural part (5) and being fixed to the structural part (5) at a distance from the C-profile rail (2), or penetrating the structural part (5) laterally from the C-profile rail (2).
  2. Fastening arrangement having an anchor rail (1) for anchoring in concrete, having a C-profile rail (2) which comprises a slot (3) in a first side (4), and having an anchoring element (7) on a second side (6) opposite the first side,
    characterized in that the anchor rail (1) comprises a surface anchor (9) for providing tieback anchoring for the C-profile rail (2), which surface anchor rests on the first side (4) of the C-profile rail (2) and protrudes from the C-profile rail (2) from a third side (10) which is adjacent to the first side (4), the surface anchor (9) comprising an anchoring means (13) which is at a distance from the C-profile rail (2), the C-profile rail (2) being anchored so as to be so deeply recessed in a structural part (5) made of concrete, in particular cast into the structural part (5), that the surface anchor (9) is flush with a surface of the structural part (5), and that the surface anchor (9) is connected to the C-profile rail (2) on the first side (4) and protrudes from the C-profile rail (2) on the third side (10) adjacent to the first side (4), the surface anchor (9) being fixed to the structural part (5) at a distance from the C-profile rail (2), or penetrating the structural part (5) laterally from the C-profile rail (2).
  3. Fastening arrangement according to either claim 1 or claim 2,
    characterized in that the surface anchor (9) is connected to the C-profile rail (2) on the first side (4).
  4. Fastening arrangement according to any of claims 1 to 3,
    characterized in that the surface anchor (9) protrudes from the C-profile rail (2) from the third side (10) on a plane that is flush with the first side (4) of the C-profile rail (2), or passes through the plane that is flush with the first side (4) of the C-profile rail (2).
  5. Fastening arrangement according to any of claims 1 to 4,
    characterized in that the surface anchor (9) is hooked into the slot (3) of the C-profile rail (2).
  6. Fastening arrangement according to any of claims 1 to 5,
    characterized in that the surface anchor (9) comprises a single hook (11) which engages around a first slot edge (12) of the slot (3) of the C-profile rail (2), or a double hook (17) which engages around the first slot edge (12) of the slot (3) of the C-profile rail (2) and engages under a second slot edge (18) of the slot (3) of the C-profile rail (2).
  7. Fastening arrangement according to any of the preceding claims,
    characterized in that a shaft (22) of a fastener (20) which is fastened to the C-profile rail (2) protrudes from the slot (3) in the first side (4) of the C-profile rail (2), and in that the surface anchor (9) is fastened to the shaft (22).
  8. Fastening arrangement according to any of the preceding claims,
    characterized in that the surface anchor (9) connects the C-profile rail (2) to a second C-profile rail (2) which is arranged at a distance from the first C-profile rail (2).
  9. Fastening arrangement according to any of the preceding claims,
    characterized in that the surface anchor (9) comprises a pseudoplastically stretched shape memory alloy.
  10. Fastening arrangement according to any of the preceding claims,
    characterized in that the C-profile rail (2) comprises a deformable strip (15) on the outside on a fourth side (14) which is adjacent to the first side (4) and opposite the third side (10).
  11. Fastening arrangement according to any of the preceding claims,
    characterized in that the surface anchor (9) comprises surface structuring (23), in particular a toothing (24), on a side facing away from the first side (4).
EP21150822.1A 2020-01-27 2021-01-11 Mounting arrangement Active EP3854953B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020101790 2020-01-27
DE102020115245 2020-06-09
DE102020131596.1A DE102020131596A1 (en) 2020-01-27 2020-11-30 Anchor rail

Publications (2)

Publication Number Publication Date
EP3854953A1 EP3854953A1 (en) 2021-07-28
EP3854953B1 true EP3854953B1 (en) 2024-02-21

Family

ID=74130045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21150822.1A Active EP3854953B1 (en) 2020-01-27 2021-01-11 Mounting arrangement

Country Status (1)

Country Link
EP (1) EP3854953B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1683213A1 (en) * 1967-10-27 1970-08-13 Lutz Ing Buero Holding device
GB9207064D0 (en) * 1992-03-31 1992-05-13 Halfen Fixing Systems Limited Pour stop
AU2007201612B2 (en) * 2006-06-09 2013-10-17 Itw Australia Pty Ltd Panel connection system
EP3438361A1 (en) 2017-08-01 2019-02-06 HILTI Aktiengesellschaft Profile rail with stiffening element

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