EP3421678B1 - Method for the application of insulating panels and fixing system for the same - Google Patents

Method for the application of insulating panels and fixing system for the same Download PDF

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Publication number
EP3421678B1
EP3421678B1 EP18180173.9A EP18180173A EP3421678B1 EP 3421678 B1 EP3421678 B1 EP 3421678B1 EP 18180173 A EP18180173 A EP 18180173A EP 3421678 B1 EP3421678 B1 EP 3421678B1
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EP
European Patent Office
Prior art keywords
bushing
sleeve
panel
fastening means
fastening system
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.)
Active
Application number
EP18180173.9A
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German (de)
French (fr)
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EP3421678A1 (en
Inventor
Bernd Gräwe
Harald Keckeis
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.)
Ranit Austria GmbH
Ranit Befestigungssysteme GmbH
Original Assignee
Ranit Austria GmbH
Ranit Befestigungssysteme GmbH
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Publication date
Application filed by Ranit Austria GmbH, Ranit Befestigungssysteme GmbH filed Critical Ranit Austria GmbH
Priority to SI201830353T priority Critical patent/SI3421678T1/en
Publication of EP3421678A1 publication Critical patent/EP3421678A1/en
Application granted granted Critical
Publication of EP3421678B1 publication Critical patent/EP3421678B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • E04B1/7629—Details of the mechanical connection of the insulation to the wall

Definitions

  • the invention relates to a method for attaching panel-shaped elements such as insulation panels or similar insulation to a load-bearing substrate and a fastening system for this, finally a system comprising a fastening system, load-bearing substrate and plate-shaped element, preferably for performing the method according to the invention.
  • a sleeve with a fastening means that can be passed through the sleeve is sunk into the plate-shaped element in a hole pre-drilled through the plate-shaped element and anchored in the substrate by means of the fastening means.
  • the sleeve has a plurality of wall openings in order to enable the adhesive introduced into the interior of the sleeve to pass through.
  • the fastening means is primarily a screw or a nail, possibly also and whenever the subsurface requires it, a combination of a suitable dowel and screw.
  • the term "load-bearing substrate” also means any type of substructure on which the panel-shaped elements, in particular lightweight components such as foam bodies and heat and sound insulating materials in the form of plates, panels, strips, etc. are mounted.
  • Such fastening systems are used in particular for the assembly of composite thermal insulation systems based on plaster for insulation.
  • an insulating layer for example made of polystyrene panels or high-density rock wool panels, is usually glued to the masonry, then pegged and then plastered.
  • Such systems are for example from the EP 3 138 974 A1 or the EP 2 006 461 A2 known.
  • the sleeves used here are usually cylindrical and have an outer diameter that essentially corresponds to the diameter of a hole within the insulation panel. Adhesive is introduced into the interior of the sleeve and should pass through the openings inside the sleeve to the outside, harden there and thus create a solid bond between the plate-shaped element and the fastening system. In practice, however, it has been shown that the desired firm connection between the fastening system and the plate-shaped element cannot be achieved as a result.
  • a sleeve which has, at least over part of its length, an outer diameter that is at most 95%, preferably at most 90%, particularly preferably at most 80% of the diameter of the hole previously drilled into the plate-shaped element.
  • a particularly suitable adhesive is an adhesive foam, preferably an adhesive foam which is classified as a fire protection foam of class B1 according to DIV 4120-1.
  • a Ph foam is preferred as the adhesive due to its comparatively low expansion and high adhesive strength after setting.
  • the fastening system according to the invention can not only be used to apply panel-shaped elements such as insulation panels directly to a load-bearing substrate or an adhesive layer attached to it, but can also be used to renovate existing insulation facades.
  • new, additional panel-shaped elements are glued onto the insulating facades that have already been applied to the supporting substrate and then pegged.
  • the fastening system according to the invention must then be designed so that the sleeve has a length that can connect both insulation panels, both the old and the new, to one another. As a result, the old insulation does not have to be removed, but a new insulation board is additionally glued and pegged onto the old one, which is referred to in the specialist world as so-called "doubling up".
  • the fastening system according to the invention and the method according to the invention are also suitable for doubling up as well as for attaching a single layer of insulation material to a load-bearing substrate.
  • the partial length with the sleeve diameter matched to the hole diameter comprises at least 50% of the total length of the sleeve, preferably at least 75%, particularly preferably more than 90% of the total length of the sleeve. This ensures that the sleeve is held particularly well within the insulation board.
  • the sleeve is introduced centrally into the hole within the plate-shaped element and remains there in the introduced position until the hardenable material has hardened.
  • a concentric arrangement of the sleeve within the hole of the plate-shaped element is preferred.
  • the spacer arranged on the outside of the sleeve is in contact with the plate-shaped element after the sleeve has been introduced into the plate-shaped element and prevents the sleeve from rotating within the plate-shaped element during anchoring of the fastening means in the substrate. This is done by at least two preferably evenly arranged over the circumference of the sleeve spacers, in the form of webs or fins, achieved.
  • the sleeve provided with perforations in the wall is inserted into the plate-shaped element in such a way that it is preferably largely flush with the surface of the plate-shaped element and, if necessary, closes it with the hardenable material that completely fills the interior of the sleeve, preferably largely flush.
  • the curable material runs radially over the wall openings into the plate-shaped element in such a way that the sleeve is preferably completely enclosed and enclosed by the curable material.
  • the fastening system thus no longer requires plate dowels, rather a simple, perforated sleeve without a holder plate is sufficient to fulfill the desired purpose.
  • a PU foam adhesive and its sleeve enclosing intimate connection with the material of the plate-shaped element, preferably the insulation, not only increases the pull-out security, in interaction with the anchoring of the fastener, in particular a screw or a screw-dowel -Combination enables the plate-shaped element to be fastened in the subsurface to withstand high wind loads, as higher strength values than those specified by the technical test guidelines for the previously usual fastenings can be achieved. Furthermore, it will no longer be necessary to close the pre-drilled hole above the countersunk sleeve with a cover disk or washer, even if this is also covered by the invention in a preferred embodiment. Because the entire upper hole cavity is also filled by the adhesive.
  • a fastening system is made available that provides a fastening means for anchoring the fastening system in the ground and a sleeve which is arranged behind the fastening means in the anchoring direction and whose length and diameter are adapted to the dimensions of the plate-shaped element.
  • the sleeve has a plurality of wall openings, the sleeve having at least two spacers distributed over its circumference, which protrude beyond the outer diameter of the base body of the sleeve and are thus provided on the sleeve base body so as to protrude radially outward.
  • this ensures that the sleeve of the fastening system according to the invention is arranged centrally within a borehole previously made in the plate-shaped element so that the sleeve can be completely enclosed by means of the hardenable material, but at least over the partial length with a reduced diameter.
  • the spacers according to the invention also prevent the sleeve from moving within the plate-shaped element following the rotation of the fastener when the fastener is anchored in the supporting substrate and the torque applied to the fastener is applied.
  • the spacers are designed for this in the form of webs or fins which extend over a part of the length of the sleeve on the outside thereof, preferably over at least 2% of the length of the sleeve, preferably over at least 5% each, particularly preferably over at least 7 each, 5% of the length of the sleeve.
  • At least two spacers are arranged both on the end of the sleeve facing the fastening means and on the end of the sleeve facing away.
  • two web-shaped or fin-shaped spacers are provided at each end of the sleeve, in particular arranged over the circumference of the sleeve at an angle of 180 ° to one another. It is also preferred if the spacers at the end of the sleeve facing the fastening means have a smaller radial extent or height in relation to the outer diameter of the sleeve base body than the spacers arranged at the opposite end of the sleeve.
  • the insertion of the sleeve into the borehole within the plate-shaped element is particularly advantageously supported if the radial extension of the spacers at the end facing the fastening means essentially corresponds to the inside diameter of the borehole and the radial creation of the spacers assigned to the opposite end of the sleeve is greater is designed so that the last-mentioned spacers engage in the material of the plate-shaped element surrounding the borehole. In this way, both the introduction of the sleeve and its non-rotatable hold within the borehole are reliably ensured with particularly simple means.
  • the sleeve preferably has a base body which has a circular cross section. It is particularly preferred if the base body of the sleeve is essentially cylindrical. This creates a fastening system that is not only easy to manufacture, but also provides a uniform connection between the fastening system and the plate-shaped element over its entire length. In a likewise preferred alternative embodiment of the invention, however, the base body of the sleeve is essentially designed in the shape of a truncated cone. This not only simplifies the introduction of the sleeve into the plate-shaped element, but also increases the space between the sleeve and the plate-shaped element, advantageously and with particularly simple means, at least over a part of the length of the sleeve.
  • the sleeve together with the screw can, for example, be integrally formed on the sleeve with a dowel or mounted without a dowel, for example when using a wood screw or a nail for fastening to a wooden structure.
  • a retaining plate is either fixedly or detachably connected to the sleeve at the end of the sleeve facing away from the fastening means.
  • the retaining plate preferably has the effect that a flush closure of the fastening systems and the plate-shaped element is achieved after the fastening system has been introduced, in particular in mineral wool insulation boards.
  • the fastening system according to the invention can also have different sizes of holding plates, depending on the material of the holding plate, which can be detachably connected to the sleeve plate-shaped element, provide.
  • a detachable connection between the sleeve and the retaining plate is particularly advantageous if the retaining plate is designed such that the closing edge of the sleeve rests in a suitable receptacle within the retaining plate. In this way, a particularly advantageous embodiment of the fastening system according to the invention is achieved, which can ensure that the retaining plate is consistently aligned coaxially with the sleeve.
  • a system comprising a fastening means according to the invention and a load-bearing base and a plate-shaped element is provided, which is particularly suitable for carrying out the method according to the invention. All of the technical effects that can be achieved with the method according to the invention and the fastening system according to the invention can also be achieved with the system according to the invention with the features of claim 11.
  • Figure 1 shows both a top view and a cross-sectional view of a sleeve 1 according to the invention in a first embodiment.
  • the sleeve 1 has at each of its two ends four spacer elements 2, 3 in the form of webs or fins, which extend from the cylindrical base body of the sleeve 1 radially outwards at an angular distance of 90 ° from one another.
  • the radial extension of the spacer elements 3 is larger than the radial extension of the spacer elements 2, on the one hand to enable the sleeve 1 to be centered within an insulation panel (not shown) and on the other hand to prevent the sleeve 1 from rotating when a torque is applied.
  • Figure 2 shows a further embodiment of a sleeve 1 according to the invention, the length of which differs from the embodiment according to FIG.
  • all of the webs 2, 3 of the sleeve 1 are arranged with the same radial extent or height on the base body of the sleeve 1.
  • Figure 3 shows a tool for making the borehole both in the (not shown) supporting ground and for making the borehole in the (not shown) plate-shaped element into it.
  • the arrangement of the drill 4 and milling head 5 allows the borehole to be drilled in one work step.
  • the radial extension of the milling head 5 beyond that of the drill 4 defines the maximum depth of the borehole within the supporting subsurface (not shown).
  • the tool enables boreholes with different diameters to be made in the supporting substrate (not shown) on the one hand and the plate-shaped element (not shown) on the other.
  • Figure 4 shows another tool 6 for carrying out the method according to the invention, here a tool 6 for applying a torque necessary for anchoring the fastening means (not shown) in the supporting substrate (not shown) by the fastening system (not shown) after the insertion of the (not shown) ) Sleeve into the (not shown) plate-shaped element and the passage of the fastening means (not shown) into the supporting base (not shown).
  • the tool is provided with an adjustable sleeve in order to adjust the length of the tool to the necessary screwing in of the screw (not shown).
  • Figure 5 shows a dowel 7 with a hexagonal head as part of a fastening system according to the invention. While the base body of the dowel 7 is essentially cylindrical, the head of the dowel has a hexagonal shape in order to effect a rotationally secure connection of the dowel 7 and the (not shown) sleeve with corresponding means within the sleeve (not shown).
  • Figure 6 shows a screw 8 for the dowel-free connection of the fastening system to a load-bearing substrate such as stone or concrete.
  • the screw 8 has an external thread that is larger than the hole created in the background, the core of the screw 8 being slightly smaller than the (not shown) borehole.
  • Figure 7 shows a screw 9 as a fastening means for the dowel-free connection of the fastening system according to the invention with a load-bearing substrate such as wood or MCF and sheet metal.
  • Figure 8 shows a first embodiment of a fastening system according to the invention, comprising a dowel 7 and a sleeve 1 mounted with the dowel 7 according to FIG Figure 1 .
  • Figure 9 shows a second embodiment of a fastening system according to the invention, comprising a screw 8 according to FIG Figure 6 and a sleeve 1 according to Figure 1 .
  • Figure 10 shows a third embodiment of a fastening system according to the invention, comprising a dowel 7 according to Figure 5 and a sleeve 1 with a frustoconical basic shape over its entire length.
  • Figure 11 shows a fourth embodiment of a fastening system according to the invention, comprising a screw 8 according to FIG Figure 6 and a sleeve 1 according to Figure 10 .
  • Figure 12 shows a fifth embodiment of a fastening system according to the invention, comprising a dowel 7 according to Figure 5 and a sleeve 1 according to Figure 2 , which differ from the sleeve 1 according to Figure 2 differs by a retaining plate 10 on the end of the sleeve 1 facing away from the fastening means 7.
  • the retaining plate 10 ensures that the fastening system and the plate-shaped element (not shown) are flush after the fastening system has been introduced is achieved.
  • Such retaining plates 10 are used in particular for mineral wool insulation boards.
  • FIG 13 shows a sixth embodiment of a fastening system according to the invention, comprising a dowel 7 according to Figure 5 and a sleeve 1 according to Figure 2 , which differ from the sleeve 1 according to Figure 2 differs by attaching a spiral holding element 11 to the end of the sleeve 1 facing away from the fastening means 7.
  • the spiral holding element 11 has a spiral-shaped cutting edge 11a running around the circumference of the base body, which cuts helically into the material of the plate-shaped element when the sleeve 1 is inserted into a (not shown) plate-shaped element and thus a flush termination of the fastening system within the ( not shown) causes plate-shaped element.
  • All embodiments of the fastening system according to the invention according to the Figures 8 to 13 use sleeves 1 with a large number of wall openings 12 arranged essentially identically over the circumference and the length of the sleeve 1, through which a hardenable material entered into the interior of the sleeve 1 can emerge out of the sleeve 1 and preferably enclose it completely.
  • Figure 14 shows a first working step of a method according to the invention, in which a drill hole in a plate-shaped element 13 and an adhesive layer 14 through into a supporting substrate 15 by means of a tool according to FIG Figure 3 is introduced.
  • the diameter of the borehole within the supporting substrate 15 and the adhesive layer 14 is predetermined by the drill bit 4, while the diameter of the borehole within the plate-shaped element 13 is predetermined by the diameter of the milling head 5.
  • Figure 15 shows a further working step of the method according to the invention, in which the fastening system according to the invention, comprising a dowel 7 and a sleeve 1 connected non-rotatably to the dowel 7, is inserted into the previously drilled borehole.
  • the webs 2, 3 of the sleeve 1 slide along the wall of the borehole within the plate-shaped element 13 and thus ensure a concentric arrangement of the sleeve 1 within the borehole of the plate-shaped element 13.
  • An intermediate space 16 thus remains between the frustoconical base body of the sleeve 1 and the material of the plate-shaped element 13 surrounding the borehole.
  • Figure 16 shows a further step of the method according to the invention, in which the anchoring of the fastening element on the supporting substrate 15 is effected by inserting a screw through the sleeve 1 into the dowel 7.
  • the sleeve 1 has been pushed into the plate-shaped element 13 in such a way that the webs 2, 3 effect a rotationally secure and concentric arrangement of the sleeve 1 within the bore in the plate-shaped element 13.
  • Figure 17 shows a fourth step of a method according to the invention, in which the hardenable material 17 is introduced into the sleeve 1 from the outside, passes through the openings 12 and enters the space 16 between the plate-shaped material 13 and the sleeve 1.
  • curable material for example adhesive foam
  • Figure 18 shows a further step of the method according to the invention, in which the hardenable material 17, introduced in the previous step according to FIG figure 17th , is cured in place and thus causes a secure connection between the plate-shaped material 13 and the supporting substrate 5 via the fastening system, including the dowel 7 and the sleeve 1.
  • FIG Figure 19 finally shows an alternative embodiment of the method according to the invention using a fastening system according to the FIG Figure 13 illustrated sixth embodiment of the invention.
  • the spiral holding plate 11 has penetrated the material of the plate-shaped element 13 with its spiral-shaped cutting edge 11a in such a way that a displacement of the sleeve 1 within the plate-shaped element 13 in the longitudinal direction of the fastening system can be reliably avoided.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Anbringung von plattenförmigen Elementen wie Dämmstoffplatten oder dergleichen Dämmmittel an einem tragenden Untergrund sowie ein Befestigungssystem hierfür, schließlich ein System aus Befestigungssystem, tragendem Untergrund und plattenförmigem Element, vorzugsweise zur Durchführung des erfindungsgemäßen Verfahrens. Hierbei wird in ein durch das plattenförmige Element bis in den Untergrund vorgebohrtes Loch eine Hülse mit einem durch die Hülse hindurchführbaren Befestigungsmittel in das plattenförmige Element versenkt eingebracht und mittels des Befestigungsmittels im Untergrund verankert. Die Hülse weist hierbei eine Mehrzahl von Wanddurchbrechungen auf, um ein Hindurchtreten von in den Innenraum der Hülse eingebrachten Kleber zu ermöglichen.The invention relates to a method for attaching panel-shaped elements such as insulation panels or similar insulation to a load-bearing substrate and a fastening system for this, finally a system comprising a fastening system, load-bearing substrate and plate-shaped element, preferably for performing the method according to the invention. Here, a sleeve with a fastening means that can be passed through the sleeve is sunk into the plate-shaped element in a hole pre-drilled through the plate-shaped element and anchored in the substrate by means of the fastening means. In this case, the sleeve has a plurality of wall openings in order to enable the adhesive introduced into the interior of the sleeve to pass through.

Bei dem Befestigungsmittel handelt es sich vorrangig um eine Schraube oder einen Nagel, gegebenenfalls auch und immer dann, wenn der Untergrund dies erfordert, eine Kombination aus geeignetem Dübel und Schraube. Unter dem Begriff "tragender Untergrund" wird neben Fassadenwänden auch jede Art von Unterkonstruktion verstanden, auf die die plattenförmigen Elemente, insbesondere Leichtbauteile wie Schaumstoffkörper und wärme- bzw. schallisolierende Materialien in Form von Platten, Paneelen, Leisten etc. montiert werden. Derartige Befestigungssysteme finden insbesondere Verwendung zur Montage von Wärmedämmverbundsystemen auf Putzbasis zur Dämmung. Hierbei wird üblicherweise eine Dämmschicht, beispielsweise aus Polystyrolplatten oder aus hochverdichteten Steinwolleplatten, auf das Mauerwerk geklebt, dann verdübelt sowie anschließend verputzt.The fastening means is primarily a screw or a nail, possibly also and whenever the subsurface requires it, a combination of a suitable dowel and screw. In addition to facade walls, the term "load-bearing substrate" also means any type of substructure on which the panel-shaped elements, in particular lightweight components such as foam bodies and heat and sound insulating materials in the form of plates, panels, strips, etc. are mounted. Such fastening systems are used in particular for the assembly of composite thermal insulation systems based on plaster for insulation. In this case, an insulating layer, for example made of polystyrene panels or high-density rock wool panels, is usually glued to the masonry, then pegged and then plastered.

Derartige Systeme sind beispielsweise aus der EP 3 138 974 A1 oder der EP 2 006 461 A2 bekannt. Die hierbei verwendeten Hülsen sind üblicherweise zylindrisch ausgebildet und weisen einen Außendurchmesser auf, der im Wesentlichen dem Durchmesser einer Bohrung innerhalb der Dämmstoffplatte entspricht. Kleber wird in den Innenraum der Hülse eingebracht und soll durch die Durchbrechungen innerhalb der Hülse nach außen hindurchtreten, dort aushärten und somit einen festen Verbund von plattenförmigem Element und Befestigungssystem schaffen. In der Praxis hat sich jedoch gezeigt, dass hierdurch der gewünschte feste Verbund zwischen Befestigungssystem und plattenförmigem Element nicht erreichbar ist. Dies wird insbesondere dadurch bewirkt, dass der durch die Durchbrechungen hindurchtretende Kleber nicht in der Lage ist, das angrenzende Material des plattenförmigen Elements soweit zu verdrängen, dass ausreichende Mengen an Kleber durch Durchbrechungen der Hülse hindurchtreten können. Erreichbar ist mit derartigen Hülsen gemäß dem Stand der Technik lediglich, dass einzelne, nicht miteinander verbundene Klebernasen an der Außenseite der Hülse vorliegen, über die ein Flächenverbund mit dem plattenförmigen Element jedoch nicht erreichbar ist. Ein gattungsgemäßes Verfahren sowie ein entsprechendes Befestigungssystem ist auch aus der DE 198 40 521 C1 bekannt. Dieses Dokument offenbart ein Verfahren nach dem Oberbegriff des Anspruchs 1 und ein Befestigungssystem nach dem Oberbegriff des Anspruchs 3.Such systems are for example from the EP 3 138 974 A1 or the EP 2 006 461 A2 known. The sleeves used here are usually cylindrical and have an outer diameter that essentially corresponds to the diameter of a hole within the insulation panel. Adhesive is introduced into the interior of the sleeve and should pass through the openings inside the sleeve to the outside, harden there and thus create a solid bond between the plate-shaped element and the fastening system. In practice, however, it has been shown that the desired firm connection between the fastening system and the plate-shaped element cannot be achieved as a result. This is caused in particular by the fact that the adhesive passing through the openings is not able to displace the adjoining material of the plate-shaped element to such an extent that sufficient amounts of adhesive can pass through openings in the sleeve. The only thing that can be achieved with such sleeves according to the prior art is that individual adhesive noses that are not connected to one another are present on the outside of the sleeve, via which, however, a surface bond with the plate-shaped element cannot be achieved. A generic method and a corresponding fastening system is also from the DE 198 40 521 C1 known. This document discloses a method according to the preamble of claim 1 and a fastening system according to the preamble of claim 3.

Es war daher eine Aufgabe der Erfindung, ein Verfahren sowie ein Befestigungssystem zur Anbringung von plattenförmigen Elementen wie Dämmstoffplatten und dergleichen an einem tragenden Untergrund zur Verfügung zu stellen, mittels derer die aus dem Stand der Technik bekannten Probleme überwindbar sind. Erfindungsgemäß wird diese Aufgabe mittels eines Verfahrens, umfassend die Merkmale des Anspruchs 1, mittels eines Befestigungssystems, umfassend die Merkmale des Anspruchs 3, sowie mittels eines Systems aus Befestigungsmittel und tragendem Untergrund sowie plattenförmigem Element, umfassend die Merkmale des Anspruchs 11, gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen sowie in der Beschreibung der Erfindung dargelegt.It was therefore an object of the invention to provide a method and a fastening system for attaching panel-shaped elements such as insulation panels and the like to a load-bearing substrate, by means of which the problems known from the prior art can be overcome. According to the invention, this object is achieved by means of a method comprising the features of claim 1, by means of a fastening system, comprising the features of claim 3, and by means of a system of fastening means and supporting base and plate-shaped element, comprising the features of claim 11, solved. Advantageous embodiments of the invention are set out in the dependent claims and in the description of the invention.

Verfahrensseitig wird eine Hülse bereitgestellt, die zumindest über eine Teillänge einen Außendurchmesser aufweist, der höchstens 95 %, vorzugsweise höchstens 90 %, insbesondere bevorzugt höchstens 80 % des Durchmessers des vorab in das plattenförmige Element gebohrten Lochs beträgt. Nach dem Einbringen der Hülse in das plattenförmige Element, dem Hindurchführen des Befestigungsmittels durch die Hülse hindurch und dem Verankern des Befestigungsmittels im tragenden Untergrund wird ein aushärtbarer Kleber in die Hülse eingebracht, tritt durch die Mehrzahl von Wanddurchbrechungen hindurch und bildet aufgrund des entstandenen Zwischenraums zwischen Hülse und plattenförmigem Element mit der Außenseite des Lochs innerhalb des plattenförmigen Elements eine vorzugsweise vollflächige Verbindung. Hierdurch wird sichergestellt, dass der Kleber die Hülse vorzugsweise vollflächig umschließt und somit die Hülse innerhalb des Lochs in dem plattenförmigen Element einbettet. Als Kleber eignet sich insbesondere ein Klebeschaum, vorzugsweise ein Klebeschaum, der als Brandschutzschaum der Klasse B1 nach DIV 4120 - 1 eingeordnet ist. Bevorzugt wird als Kleber ein Ph-Schaum aufgrund einer vergleichsweise geringen Expansion und hoher Klebekraft nach dem Abbinden.In terms of the method, a sleeve is provided which has, at least over part of its length, an outer diameter that is at most 95%, preferably at most 90%, particularly preferably at most 80% of the diameter of the hole previously drilled into the plate-shaped element. After the sleeve has been inserted into the plate-shaped element, the fastener is passed through the sleeve and the fastener is anchored in the supporting substrate, a hardenable adhesive is inserted into the sleeve, passes through the plurality of wall openings and forms between the sleeve due to the space created and plate-shaped element with the outside of the hole within the plate-shaped element, a preferably full-surface connection. This ensures that the adhesive preferably surrounds the sleeve over its entire surface and thus embeds the sleeve within the hole in the plate-shaped element. A particularly suitable adhesive is an adhesive foam, preferably an adhesive foam which is classified as a fire protection foam of class B1 according to DIV 4120-1. A Ph foam is preferred as the adhesive due to its comparatively low expansion and high adhesive strength after setting.

Das erfindungsgemäße Befestigungssystem kann nicht nur dazu verwendet werden, plattenförmige Elemente wie Dämmstoffplatten direkt auf einen tragenden Untergrund oder eine hierauf angebrachte Klebeschicht aufzubringen, sondern kann auch zur Sanierung von bereits bestehenden Dämmfassaden genutzt werden. Hierbei werden auf die bereits am tragenden Untergrund aufgebrachten Dämmfassaden neue, zusätzliche plattenförmige Elemente aufgeklebt und dann verdübelt. Das erfindungsgemäße Befestigungssystem muss dann so ausgelegt werden, dass die Hülse eine Länge aufweist, die beide Dämmstoffplatten, sowohl die alte als auch die neue, miteinander verbinden kann. Hierdurch muss die alte Dämmung nicht entfernt werden, sondern es wird zusätzlich eine neue Dämmstoffplatte auf die alte geklebt und verdübelt, was in der Fachwelt als sogenanntes "Aufdoppeln" bezeichnet wird. Das erfindungsgemäße Befestigungssystem und das erfindungsgemäße Verfahren eignen sich ebenso für das Aufdoppeln wie für das Anbringen einer einzelnen Dämmstoffschicht auf einem tragenden Untergrund.The fastening system according to the invention can not only be used to apply panel-shaped elements such as insulation panels directly to a load-bearing substrate or an adhesive layer attached to it, but can also be used to renovate existing insulation facades. Here, new, additional panel-shaped elements are glued onto the insulating facades that have already been applied to the supporting substrate and then pegged. The fastening system according to the invention must then be designed so that the sleeve has a length that can connect both insulation panels, both the old and the new, to one another. As a result, the old insulation does not have to be removed, but a new insulation board is additionally glued and pegged onto the old one, which is referred to in the specialist world as so-called "doubling up". The fastening system according to the invention and the method according to the invention are also suitable for doubling up as well as for attaching a single layer of insulation material to a load-bearing substrate.

Bevorzugt wird, wenn die Teillänge mit dem auf den Lochdurchmesser abgestimmten Hülsendurchmesser zumindest 50 % der Gesamtlänge der Hülse umfasst, vorzugsweise wenigstens 75 %, insbesondere bevorzugt mehr als 90 % der Gesamtlänge der Hülse. Hierdurch wird sichergestellt, dass ein besonders guter Halt der Hülse innerhalb der Dämmstoffplatte sichergestellt ist.It is preferred if the partial length with the sleeve diameter matched to the hole diameter comprises at least 50% of the total length of the sleeve, preferably at least 75%, particularly preferably more than 90% of the total length of the sleeve. This ensures that the sleeve is held particularly well within the insulation board.

Besonders bevorzugt wird überdies, wenn die Hülse mittig in das Loch innerhalb des plattenförmigen Elements eingebracht wird und dort bis zum Aushärten des aushärtbaren Materials in der eingebrachten Position verbleibt. Insbesondere wird bei einer Hülse mit rundem Querschnitt, insbesondere bei zylindrischer oder kegelstumpfförmiger Hülse, zusammen mit einem Bohrloch mit ebenso rundem Querschnitt eine konzentrische Anordnung der Hülse innerhalb des Lochs des plattenförmigen Elements bevorzugt.In addition, it is particularly preferred if the sleeve is introduced centrally into the hole within the plate-shaped element and remains there in the introduced position until the hardenable material has hardened. In particular, in the case of a sleeve with a round cross-section, especially a cylindrical or frustoconical sleeve, together with a borehole with an equally round cross-section, a concentric arrangement of the sleeve within the hole of the plate-shaped element is preferred.

Es ist erfindungsgemäß vorgesehen, der an der Außenseite der Hülse angeordnete Abstandhalter nach dem Einbringen der Hülse in das plattenförmige Element mit diesem in Kontakt stehen und ein Verdrehen der Hülse innerhalb des plattenförmigen Elements während der Verankerung des Befestigungsmittels im Untergrund, verhindern. Dies wird durch wenigstens zwei vorzugsweise gleichmäßig über den Umfang der Hülse angeordnete Abstandhalter, in der Form von Stegen oder Flossen, erreicht.According to the invention, the spacer arranged on the outside of the sleeve is in contact with the plate-shaped element after the sleeve has been introduced into the plate-shaped element and prevents the sleeve from rotating within the plate-shaped element during anchoring of the fastening means in the substrate. This is done by at least two preferably evenly arranged over the circumference of the sleeve spacers, in the form of webs or fins, achieved.

Die mit Wanddurchbrechungen versehene Hülse wird so in das plattenförmige Element eingebracht, dass sie vorzugsweise weitestgehend bündig mit der Oberfläche des plattenförmigen Elements angeordnet ist und gegebenenfalls ohne Verwendung eines Haltetellers zusammen mit dem das Innere der Hülse vollständig auffüllenden aushärtbaren Material vorzugsweise weitestgehend bündig verschließt. Das aushärtbare Material verläuft radial über die Wanddurchbrechungen bis in das plattenförmige Element hinein in einer Weise, dass die Hülse vom aushärtbaren Material vorzugsweise vollständig umschlossen und eingekammert wird. Das Befestigungssystem erfordert somit keine Tellerdübel mehr, vielmehr reicht eine einfache, haltetellerlose und durchlöcherte Hülse aus, um den gewünschten Zweck zu erfüllen. Durch die Verfüllung mit dem aushärtbaren Material, z. B. einem PU-Schaum-Kleber und dessen die Hülse einschließende innige Verbindung mit dem Material des plattenförmigen Elements, vorzugsweise des Dämmstoffs, wird nicht nur eine die Auszugssicherheit erhöhende, im Zusammenspiel mit der Verankerung des Befestigungsmittels, insbesondere eine Schraube oder eine Schraube-Dübel-Kombination, im Untergrund großen Windlasten standhaltende Befestigung des plattenförmigen Elements ermöglicht, da sich höhere Festigkeitswerte als durch die technischen Prüfrichtlinien für die bisher üblichen Befestigungen vorgegeben erreichen lassen. Es wird weiterhin auch nicht mehr notwendig sein, das vorgebohrte Loch oberhalb der versenkten Hülse mit einer Abdeckscheibe bzw. Rondelle verschließen zu müssen, auch wenn dies ebenfalls von der Erfindung in einer bevorzugten Ausführungsform umfasst ist. Denn auch der gesamte obere Loch-Hohlraum wird durch den Kleber ausgefüllt. Ein zusätzlicher Arbeitsgang und zusätzliche Arbeitsmittel, wie Rondellen, können damit entfallen. Gleichzeitig wird ein Wärmedurchgangskoeffizient von nahezu 0 erreicht, weil das metallische Befestigungsmittel bzw. dessen unten in der Hülse zur Anlage kommender Schraubenkopf nach außen hin von dem aushärtbaren Material völlig abgeschirmt ist.The sleeve provided with perforations in the wall is inserted into the plate-shaped element in such a way that it is preferably largely flush with the surface of the plate-shaped element and, if necessary, closes it with the hardenable material that completely fills the interior of the sleeve, preferably largely flush. The curable material runs radially over the wall openings into the plate-shaped element in such a way that the sleeve is preferably completely enclosed and enclosed by the curable material. The fastening system thus no longer requires plate dowels, rather a simple, perforated sleeve without a holder plate is sufficient to fulfill the desired purpose. By filling with the hardenable material, for. B. a PU foam adhesive and its sleeve enclosing intimate connection with the material of the plate-shaped element, preferably the insulation, not only increases the pull-out security, in interaction with the anchoring of the fastener, in particular a screw or a screw-dowel -Combination enables the plate-shaped element to be fastened in the subsurface to withstand high wind loads, as higher strength values than those specified by the technical test guidelines for the previously usual fastenings can be achieved. Furthermore, it will no longer be necessary to close the pre-drilled hole above the countersunk sleeve with a cover disk or washer, even if this is also covered by the invention in a preferred embodiment. Because the entire upper hole cavity is also filled by the adhesive. An additional work step and additional work equipment, such as discs, can thus be dispensed with. At the same time, a heat transfer coefficient of almost 0 is achieved because the metallic fastening means or its bottom in the sleeve comes to rest The screw head is completely shielded from the outside of the hardenable material.

Vorrichtungsseitig wird ein Befestigungssystem zur Verfügung gestellt, dass ein Befestigungsmittel zur Verankerung des Befestigungssystems im Untergrund sowie eine Hülse, die in Verankerungsrichtung hinter dem Befestigungsmittel angeordnet ist und deren Länge sowie Durchmesser auf die Dimensionen des plattenförmigen Elements angepasst ist, zur Verfügung gestellt. Erfindungsgemäß weist die Hülse eine Mehrzahl von Wanddurchbrechungen auf, wobei die Hülse über ihren Umfang verteilt angeordnet wenigstens zwei Abstandhalter aufweist, die über den Außendurchmesser des Grundkörpers der Hülse hinausragend ausgebildet sind und somit radial nach außen hervorstehend am Hülsengrundkörper vorgesehen sind.On the device side, a fastening system is made available that provides a fastening means for anchoring the fastening system in the ground and a sleeve which is arranged behind the fastening means in the anchoring direction and whose length and diameter are adapted to the dimensions of the plate-shaped element. According to the invention, the sleeve has a plurality of wall openings, the sleeve having at least two spacers distributed over its circumference, which protrude beyond the outer diameter of the base body of the sleeve and are thus provided on the sleeve base body so as to protrude radially outward.

Hierdurch wird zum einen erreicht, dass die Hülse des erfindungsgemäßen Befestigungssystems mittig so innerhalb eines in dem plattenförmigen Element vorab eingebrachten Bohrlochs angeordnet ist, dass eine Einhausung der Hülse mittels des aushärtbaren Materials vollständig, zumindest jedoch über die Teillänge mit reduziertem Durchmesser, erreichbar ist. Zum anderen wird mittels der erfindungsgemäßen Abstandhalter auch verhindert, dass die Hülse sich bei Verankern des Befestigungsmittels im tragenden Untergrund und des dabei auf das Befestigungsmittel aufgebrachten Drehmoments innerhalb des plattenförmigen Elements der Drehung des Befestigungsmittels folgend bewegt. Erfindungsgemäß sind die Abstandhalter hierfür in Form von Stegen oder Flossen ausgebildet, die sich über eine Teillänge der Hülse an deren Außenseite erstrecken, vorzugsweise jeweils über wenigstens 2 % der Länge der Hülse, vorzugsweise jeweils über wenigstens 5 %, insbesondere bevorzugt über jeweils wenigstens 7,5 % der Länge der Hülse. Hierdurch wird ein Befestigungssystem geschaffen, das nicht nur die Verankerung der Hülse und deren Verdrehsicherung vor dem Einbringen des aushärtbaren Materials unterstützt, sondern ebenfalls die verdrehsichere Anordnung der Hülse nach dem Aushärten des aushärtbaren Materials vorteilhaft unterstützt.On the one hand, this ensures that the sleeve of the fastening system according to the invention is arranged centrally within a borehole previously made in the plate-shaped element so that the sleeve can be completely enclosed by means of the hardenable material, but at least over the partial length with a reduced diameter. On the other hand, the spacers according to the invention also prevent the sleeve from moving within the plate-shaped element following the rotation of the fastener when the fastener is anchored in the supporting substrate and the torque applied to the fastener is applied. According to the invention, the spacers are designed for this in the form of webs or fins which extend over a part of the length of the sleeve on the outside thereof, preferably over at least 2% of the length of the sleeve, preferably over at least 5% each, particularly preferably over at least 7 each, 5% of the length of the sleeve. This creates a fastening system that not only anchors the sleeve and prevents it from rotating before the curable Material supports, but also advantageously supports the torsion-proof arrangement of the sleeve after the hardening of the hardenable material.

Erfindungsgemäß sind wenigstens zwei Abstandhalter sowohl an dem dem Befestigungsmittel zugewandten Ende der Hülse als an auch dem abgewandten Ende der Hülse angeordnet. Hierdurch wird mit besonders einfachen Mitteln erreicht, dass die Hülse nach dem Einbringen in das Loch des plattenförmigen Elements so innerhalb des Lochs verbleibt, dass nur die Abstandhalter, nicht jedoch der Grundkörper der Hülse mit der Lochwand des plattenförmigen Elements in Kontakt gelangt. Es wird hierdurch eine vollständige Umschließung der Hülse mit dem aushärtbaren Material erreichbar.According to the invention, at least two spacers are arranged both on the end of the sleeve facing the fastening means and on the end of the sleeve facing away. This achieves with particularly simple means that the sleeve remains inside the hole after it has been inserted into the hole in the plate-shaped element so that only the spacers, but not the base body of the sleeve, come into contact with the hole wall of the plate-shaped element. A complete enclosure of the sleeve with the curable material can be achieved as a result.

Besonders bevorzugt wird diesbezüglich, wenn je zwei steg- oder flossenförmige Abstandhalter an jeweils einem Ende der Hülse, insbesondere über den Umfang der Hülse unter einem Winkel von 180° zueinander angeordnet, vorgesehen sind. Bevorzugt wird überdies, wenn die Abstandhalter an dem dem Befestigungsmittel zugewandten Ende der Hülse eine geringere radiale Erstreckung oder Höhe in Bezug auf den Außendurchmesser des Hülsengrundkörpers als die dem abgewandten Ende der Hülse angeordneten Abstandhalter aufweisen. Hierdurch wird das Einführen der Hülse in das Bohrloch innerhalb des plattenförmigen Elements besonders vorteilhaft unterstützt, wenn die radiale Erstreckung der Abstandhalter an dem dem Befestigungsmittel zugewandten Ende im Wesentlichen mit dem Innendurchmesser des Bohrlochs korrespondiert und die radiale Erstellung der dem abgewandten Ende der Hülse zugeordneten Abstandhalter größer ausgebildet ist, so dass die letztgenannten Abstandhalter in das das Bohrloch umgebende Material des plattenförmigen Elements eingreifen. Hierdurch wird sowohl das Einführen der Hülse als auch deren drehfester Halt innerhalb des Bohrlochs mit besonders einfachen Mitteln sicher gewährleistet.In this regard, it is particularly preferred if two web-shaped or fin-shaped spacers are provided at each end of the sleeve, in particular arranged over the circumference of the sleeve at an angle of 180 ° to one another. It is also preferred if the spacers at the end of the sleeve facing the fastening means have a smaller radial extent or height in relation to the outer diameter of the sleeve base body than the spacers arranged at the opposite end of the sleeve. As a result, the insertion of the sleeve into the borehole within the plate-shaped element is particularly advantageously supported if the radial extension of the spacers at the end facing the fastening means essentially corresponds to the inside diameter of the borehole and the radial creation of the spacers assigned to the opposite end of the sleeve is greater is designed so that the last-mentioned spacers engage in the material of the plate-shaped element surrounding the borehole. In this way, both the introduction of the sleeve and its non-rotatable hold within the borehole are reliably ensured with particularly simple means.

Die Hülse weist vorzugsweise einen Grundkörper auf, der einen kreisrunden Querschnitt aufweist. Besonders bevorzugt wird, wenn der Grundkörper der Hülse im Wesentlichen zylindrisch ausgebildet ist. Hierdurch wird ein Befestigungssystem geschaffen, dass nicht nur einfach herstellbar ist, sondern auch über seine gesamte Länge eine gleichmäßige Verbindung zwischen Befestigungssystem und plattenförmigem Element bereitstellt. In einer ebenso bevorzugten alternativen Ausgestaltungsform der Erfindung ist der Grundkörper der Hülse jedoch im Wesentlichen kegelstumpfförmig ausgebildet. Hierdurch wird nicht nur das Einbringen der Hülse in das plattenförmige Element vereinfacht, sondern ebenso der Zwischenraum zwischen Hülse und plattenförmigem Element zumindest über eine Teillänge der Hülse vorteilhaft und mit besonders einfachen Mitteln vergrößert.The sleeve preferably has a base body which has a circular cross section. It is particularly preferred if the base body of the sleeve is essentially cylindrical. This creates a fastening system that is not only easy to manufacture, but also provides a uniform connection between the fastening system and the plate-shaped element over its entire length. In a likewise preferred alternative embodiment of the invention, however, the base body of the sleeve is essentially designed in the shape of a truncated cone. This not only simplifies the introduction of the sleeve into the plate-shaped element, but also increases the space between the sleeve and the plate-shaped element, advantageously and with particularly simple means, at least over a part of the length of the sleeve.

Es werden hierdurch die Haltekräfte verbessert, womit das Befestigungssystem höheren Durchzugskräften Stand halten kann. Die Hülse samt Schraube kann mit einem Dübel beispielsweise einstückig an die Hülse angeformt oder ohne einen Dübel, beispielsweise bei Verwendung einer Holzschraube oder eines Nagels zur Befestigung an einer Holzkonstruktion montiert werden.This improves the holding forces, so that the fastening system can withstand higher pulling forces. The sleeve together with the screw can, for example, be integrally formed on the sleeve with a dowel or mounted without a dowel, for example when using a wood screw or a nail for fastening to a wooden structure.

Durch die die Anwendungsmöglichkeiten variabel gestaltende Zweiteiligkeit von Hülse und Dübel wird erreicht, dass eine Befestigungsschraube problemlos in den Dübel geschraubt werden kann, ohne dass sich dabei die Hülse im Bohrloch mitdreht.As a result of the two-part design of the sleeve and dowel, which makes it possible to vary the possible applications, it is achieved that a fastening screw can be screwed into the dowel without any problems without the sleeve rotating in the borehole.

Bevorzugt wird überdies, wenn an dem dem Befestigungsmittel abgewandten Ende der Hülse ein Halteteller entweder fest oder lösbar der Hülse verbunden ist. Der Halteteller bewirkt vorzugsweise, dass ein bündiger Abschluss von Befestigungssystemen und plattenförmigem Element nach Einbringen des Befestigungssystems insbesondere in Mineralwolle-Dämmstoffplatten erreicht wird. Das Befestigungs-system gemäß der Erfindung kann bei lösbar mit der Hülse verbindbarem Halteteller auch unterschiedliche Größen von Haltetellern, je nach Material des plattenförmigen Elements, bereitstellen. Eine lösbare Verbindung von Hülse und Halteteller wird insbesondere dadurch vorteilhaft bewirkt, wenn der Halteteller so ausgestaltet ist, dass der abschließende Rand der Hülse in einer geeigneten Aufnahme innerhalb des Haltetellers anliegt. Hierdurch wird eine besonders vorteilhafte Ausgestaltung des erfindungsgemäßen Befestigungssystems erreicht, welche sicherstellen kann, dass der Halteteller durchweg koaxial mit der Hülse ausgerichtet ist.It is also preferred if a retaining plate is either fixedly or detachably connected to the sleeve at the end of the sleeve facing away from the fastening means. The retaining plate preferably has the effect that a flush closure of the fastening systems and the plate-shaped element is achieved after the fastening system has been introduced, in particular in mineral wool insulation boards. The fastening system according to the invention can also have different sizes of holding plates, depending on the material of the holding plate, which can be detachably connected to the sleeve plate-shaped element, provide. A detachable connection between the sleeve and the retaining plate is particularly advantageous if the retaining plate is designed such that the closing edge of the sleeve rests in a suitable receptacle within the retaining plate. In this way, a particularly advantageous embodiment of the fastening system according to the invention is achieved, which can ensure that the retaining plate is consistently aligned coaxially with the sleeve.

Erfindungsgemäß wird schließlich ein System aus einem erfindungsgemäßen Befestigungsmittel sowie einem tragenden Untergrund und einem plattenförmigen Element zur Verfügung gestellt, welches insbesondere zur Durchführung des erfindungsgemäßen Verfahrens geeignet ist. Sämtliche mit dem erfindungsgemäßen Verfahren und dem erfindungsgemäßen Befestigungssystem erreichbaren technischen Effekte sind auch mit dem erfindungsgemäßen System mit den Merkmalen des Anspruchs 11 erreichbar.Finally, according to the invention, a system comprising a fastening means according to the invention and a load-bearing base and a plate-shaped element is provided, which is particularly suitable for carrying out the method according to the invention. All of the technical effects that can be achieved with the method according to the invention and the fastening system according to the invention can also be achieved with the system according to the invention with the features of claim 11.

Die Erfindung wird anschließend unter Verweis auf eine Reihe von figürlichen Darstellungen bevorzugter Ausführungsformen und von Teilaspekten näher erläutert. In den Figuren zeigt:

Figur 1
eine Darstellung einer Hülse als Teil eines erfindungsgemäßen Befestigungssystems,
Figur 2
eine Darstellung einer Hülse als Teil eines erfindungsgemäßen Befestigungssystems,
Figur 3
ein erstes Werkzeug zur Durchführung des erfindungsgemäßen Verfahrens,
Figur 4
ein zweites Werkzeug zur Durchführung des erfindungsgemäßen Verfahrens,
Figur 5
einen Dübel als Teil eines erfindungsgemäßen Befestigungssystems,
Figur 6
eine erste Schraube als Teil eines erfindungsgemäßen Befestigungssystems,
Figur 7
eine zweite Schraube als Teil eines erfindungsgemäßen Befestigungssystems,
Figur 8
eine erste Ausführungsform eines erfindungsgemäßen Befestigungssystems,
Figur 9
eine zweite Ausführungsform eines erfindungsgemäßen Befestigungssystems,
Figur 10
eine dritte Ausführungsform eines erfindungsgemäßen Befestigungssystems,
Figur 11
eine vierte Ausführungsform eines erfindungsgemäßen Befestigungssystems,
Figur 12
eine fünfte Ausführungsform eines erfindungsgemäßen Befestigungssystems,
Figur 13
eine sechste Ausführungsform eines erfindungsgemäßen Befestigungssystems,
Figur 14
einen ersten Arbeitsschritt eines erfindungsgemäßen Verfahrens,
Figur 15
einen zweiten Arbeitsschritt eines erfindungsgemäßen Verfahrens,
Figur 16
einen dritten Arbeitsschritt eines erfindungsgemäßen Verfahrens,
Figur 17
einen vierten Arbeitsschritt eines erfindungsgemäßen Verfahrens,
Figur 18
einen fünften Arbeitsschritt eines erfindungsgemäßen Verfahrens, und
Figur 19
ein erfindungsgemäßes System aus Befestigungssystem, tragendem Untergrund und plattenförmigen Element.
The invention will then be explained in more detail with reference to a number of figurative representations of preferred embodiments and partial aspects. In the figures shows:
Figure 1
a representation of a sleeve as part of a fastening system according to the invention,
Figure 2
a representation of a sleeve as part of a fastening system according to the invention,
Figure 3
a first tool for carrying out the method according to the invention,
Figure 4
a second tool for carrying out the method according to the invention,
Figure 5
a dowel as part of a fastening system according to the invention,
Figure 6
a first screw as part of a fastening system according to the invention,
Figure 7
a second screw as part of a fastening system according to the invention,
Figure 8
a first embodiment of a fastening system according to the invention,
Figure 9
a second embodiment of a fastening system according to the invention,
Figure 10
a third embodiment of a fastening system according to the invention,
Figure 11
a fourth embodiment of a fastening system according to the invention,
Figure 12
a fifth embodiment of a fastening system according to the invention,
Figure 13
a sixth embodiment of a fastening system according to the invention,
Figure 14
a first step of a method according to the invention,
Figure 15
a second working step of a method according to the invention,
Figure 16
a third working step of a method according to the invention,
Figure 17
a fourth working step of a method according to the invention,
Figure 18
a fifth step of a method according to the invention, and
Figure 19
a system according to the invention comprising a fastening system, load-bearing base and plate-shaped element.

Figur 1 zeigt sowohl eine Draufsicht als auch eine Querschnittsansicht einer erfindungsgemäßen Hülse 1 in einer ersten Ausführungsform. Die Hülse 1 weist an ihren beiden Enden jeweils vier Abstandselemente 2, 3 in der Form von Stegen oder Flossen auf, die sich vom zylindrischen Grundkörper der Hülse 1 radial nach außen mit einem Winkelabstand von jeweils 90° zueinander erstrecken. Die radiale Erstreckung der Abstandselemente 3 ist dabei größer ausgebildet als die radiale Erstreckung der Abstandselemente 2, um einerseits ein zentrieren der Hülse 1 innerhalb einer (nicht dargestellten) Dämmstoffplatte zu ermöglichen und andererseits ein Mitdrehen der Hülse 1 bei Anliegen eines Drehmoments zu unterbinden. Figure 1 shows both a top view and a cross-sectional view of a sleeve 1 according to the invention in a first embodiment. The sleeve 1 has at each of its two ends four spacer elements 2, 3 in the form of webs or fins, which extend from the cylindrical base body of the sleeve 1 radially outwards at an angular distance of 90 ° from one another. The radial extension of the spacer elements 3 is larger than the radial extension of the spacer elements 2, on the one hand to enable the sleeve 1 to be centered within an insulation panel (not shown) and on the other hand to prevent the sleeve 1 from rotating when a torque is applied.

Figur 2 zeigt eine weitere Ausführungsform einer erfindungsgemäßen Hülse 1, deren Länge sich von der Ausführungsform gemäß 1 unterscheidet. Darüber hinaus sind sämtliche Stege 2, 3 der Hülse 1 mit der gleichen radialen Erstreckung oder Höhe am Grundkörper der Hülse 1 angeordnet. Figure 2 shows a further embodiment of a sleeve 1 according to the invention, the length of which differs from the embodiment according to FIG. In addition, all of the webs 2, 3 of the sleeve 1 are arranged with the same radial extent or height on the base body of the sleeve 1.

Figur 3 zeigt ein Werkzeug zur Einbringung des Bohrlochs sowohl in den (nicht dargestellten) tragenden Untergrund sowie zur Einbringung des Bohrlochs in das (nicht dargestellte) plattenförmige Element hinein. Durch die Anordnung von Bohrer 4 und Fräskopf 5 kann das Bohrloch in einem Arbeitsschritt eingebracht werden. Darüber hinaus wird durch die Radialerstreckung des Fräskopfs 5 über die des Bohrers 4 hinaus die maximale Tiefe des Bohrlochs innerhalb des (nicht dargestellten) tragenden Untergrunds festgelegt. Schließlich wird durch das Werkzeug ermöglicht, Bohrlöcher mit unterschiedlichem Durchmesser in den (nicht dargestellten) tragenden Untergrund einerseits und das (nicht dargestellte) plattenförmige Element andererseits einzubringen. Figure 3 shows a tool for making the borehole both in the (not shown) supporting ground and for making the borehole in the (not shown) plate-shaped element into it. The arrangement of the drill 4 and milling head 5 allows the borehole to be drilled in one work step. In addition, the radial extension of the milling head 5 beyond that of the drill 4 defines the maximum depth of the borehole within the supporting subsurface (not shown). Finally, the tool enables boreholes with different diameters to be made in the supporting substrate (not shown) on the one hand and the plate-shaped element (not shown) on the other.

Figur 4 zeigt ein weiteres Werkzeug 6 zur Durchführung des erfindungsgemäßen Verfahrens, hier ein Werkzeug 6 zur Aufbringung eines zur Verankerung des (nicht dargestellten) Befestigungsmittels in den (nicht dargestellten) tragenden Untergrund notwendigen Drehmoments durch das (nicht dargestellte) Befestigungssystem nach dem Einführen der (nicht dargestellten) Hülse in das (nicht dargestellte) plattenförmige Element und das Hindurchführen des (nicht dargestellten) Befestigungsmittel in den (nicht dargestellten) tragenden Untergrund hinein. Das Werkzeug ist dabei mit einer verstellbaren Hülse versehen, um die Länge des Werkzeugs auf die notwendige Einschraubung der (nicht dargestellten) Schraube einzustellen. Figure 4 shows another tool 6 for carrying out the method according to the invention, here a tool 6 for applying a torque necessary for anchoring the fastening means (not shown) in the supporting substrate (not shown) by the fastening system (not shown) after the insertion of the (not shown) ) Sleeve into the (not shown) plate-shaped element and the passage of the fastening means (not shown) into the supporting base (not shown). The tool is provided with an adjustable sleeve in order to adjust the length of the tool to the necessary screwing in of the screw (not shown).

Figur 5 zeigt einen Dübel 7 mit einem Sechskantkopf als Teil eines erfindungsgemäßen Befestigungssystems. Während der Grundkörper des Dübels 7 im Wesentlichen zylindrisch ausgebildet ist, weist der Kopf des Dübels eine Sechskantform auf, um mit korrespondierenden Mitteln innerhalb der (nicht dargestellten) Hülse eine drehsichere Verbindung von Dübel 7 und (nicht dargestellter) Hülse zu bewirken. Figure 5 shows a dowel 7 with a hexagonal head as part of a fastening system according to the invention. While the base body of the dowel 7 is essentially cylindrical, the head of the dowel has a hexagonal shape in order to effect a rotationally secure connection of the dowel 7 and the (not shown) sleeve with corresponding means within the sleeve (not shown).

Figur 6 zeigt eine Schraube 8 zur dübellosen Verbindung des Befestigungssystems mit einem tragenden Untergrund wie Stein oder Beton. Die Schraube 8 weist ein Außengewinde auf, das größer als das im Hintergrund erstellte Loch ist, wobei die Seele der Schraube 8 etwas kleiner als das (nicht dargestellte) Bohrloch ist. Figure 6 shows a screw 8 for the dowel-free connection of the fastening system to a load-bearing substrate such as stone or concrete. The screw 8 has an external thread that is larger than the hole created in the background, the core of the screw 8 being slightly smaller than the (not shown) borehole.

Figur 7 zeigt eine Schraube 9 als Befestigungsmittel für die dübellose Verbindung des erfindungsgemäßen Befestigungssystems mit einem tragenden Untergrund wie beispielsweise Holz oder MKF sowie Blech. Figure 7 shows a screw 9 as a fastening means for the dowel-free connection of the fastening system according to the invention with a load-bearing substrate such as wood or MCF and sheet metal.

Figur 8 zeigt eine erste Ausführungsform eines erfindungsgemäßen Befestigungssystems, umfassend einen Dübel 7 und eine mit dem Dübel 7 montierte Hülse 1 gemäß Figur 1. Figure 8 shows a first embodiment of a fastening system according to the invention, comprising a dowel 7 and a sleeve 1 mounted with the dowel 7 according to FIG Figure 1 .

Figur 9 zeigt eine zweite Ausführungsform eines erfindungsgemäßen Befestigungssystems, umfassend eine Schraube 8 gemäß Figur 6 und eine Hülse 1 gemäß Figur 1. Figure 9 shows a second embodiment of a fastening system according to the invention, comprising a screw 8 according to FIG Figure 6 and a sleeve 1 according to Figure 1 .

Figur 10 zeigt eine dritte Ausführungsform eines erfindungsgemäßen Befestigungssystems, umfassend einen Dübel 7 gemäß Figur 5 und eine Hülse 1 mit kegelstumpfförmiger Grundform über ihre gesamte Länge hinweg. Figure 10 shows a third embodiment of a fastening system according to the invention, comprising a dowel 7 according to Figure 5 and a sleeve 1 with a frustoconical basic shape over its entire length.

Figur 11 zeigt eine vierte Ausführungsform eines erfindungsgemäßen Befestigungssystems, umfassend eine Schraube 8 gemäß Figur 6 sowie eine Hülse 1 gemäß Figur 10. Figure 11 shows a fourth embodiment of a fastening system according to the invention, comprising a screw 8 according to FIG Figure 6 and a sleeve 1 according to Figure 10 .

Figur 12 zeigt eine fünfte Ausführungsform eines erfindungsgemäßen Befestigungssystems, umfassend einen Dübel 7 gemäß Figur 5 und eine Hülse 1 gemäß Figur 2, die sich von der Hülse 1 gemäß Figur 2 durch einen Halteteller 10 an dem dem Befestigungsmittel 7 abgewandten Ende der Hülse 1 unterscheidet. Durch den Halteteller 10 wird bewirkt, dass ein bündiger Abschluss von Befestigungssystem und (nicht dargestelltem) plattenförmigem Element nach Einbringen des Befestigungssystems erreicht wird. Derartige Halteteller 10 finden insbesondere bei Mineralwolle - Dämmstoffplatten Anwendung. Figure 12 shows a fifth embodiment of a fastening system according to the invention, comprising a dowel 7 according to Figure 5 and a sleeve 1 according to Figure 2 , which differ from the sleeve 1 according to Figure 2 differs by a retaining plate 10 on the end of the sleeve 1 facing away from the fastening means 7. The retaining plate 10 ensures that the fastening system and the plate-shaped element (not shown) are flush after the fastening system has been introduced is achieved. Such retaining plates 10 are used in particular for mineral wool insulation boards.

Figur 13 zeigt eine sechste Ausführungsform eines erfindungsgemäßen Befestigungssystems, umfassend einen Dübel 7 gemäß Figur 5 und eine Hülse 1 gemäß Figur 2, die sich von der Hülse 1 gemäß Figur 2 durch Anbringung eines Spiralhalteelements 11 an dem dem Befestigungsmittel 7 abgewendeten Ende der Hülse 1 unterscheidet. Das Spiralhalteelement 11 weist eine spiralförmig um den Umfang des Grundkörpers verlaufende Schneidkante 11a auf, die sich beim drehenden Einführen der Hülse 1 in ein (nicht dargestelltes) plattenförmiges Element in das Material des plattenförmigen Elements schraubenförmig einschneidet und somit einen bündigen Abschluss des Befestigungssystems innerhalb des (nicht dargestellten) plattenförmigen Elements bewirkt. Figure 13 shows a sixth embodiment of a fastening system according to the invention, comprising a dowel 7 according to Figure 5 and a sleeve 1 according to Figure 2 , which differ from the sleeve 1 according to Figure 2 differs by attaching a spiral holding element 11 to the end of the sleeve 1 facing away from the fastening means 7. The spiral holding element 11 has a spiral-shaped cutting edge 11a running around the circumference of the base body, which cuts helically into the material of the plate-shaped element when the sleeve 1 is inserted into a (not shown) plate-shaped element and thus a flush termination of the fastening system within the ( not shown) causes plate-shaped element.

Sämtliche Ausführungsformen des erfindungsgemäßen Befestigungssystems gemäß den Figuren 8 bis 13 verwenden Hülsen 1 mit einer Vielzahl von über den Umfang und die Länge der Hülse 1 im Wesentlichen gleich angeordneten Wanddurchbrechungen 12, durch die ein in das Innere der Hülse 1 eingetragenes aushärtbares Material nach außen aus der Hülse 1 heraustreten und diese vorzugswese vollumfänglich umschließen kann.All embodiments of the fastening system according to the invention according to the Figures 8 to 13 use sleeves 1 with a large number of wall openings 12 arranged essentially identically over the circumference and the length of the sleeve 1, through which a hardenable material entered into the interior of the sleeve 1 can emerge out of the sleeve 1 and preferably enclose it completely.

Figur 14 zeigt einen ersten Arbeitsschritt eines erfindungsgemäßen Verfahrens, bei dem ein Bohrloch in ein plattenförmiges Element 13 und eine Klebeschicht 14 hindurch in einen tragenden Untergrund 15 mittels eines Werkzeugs gemäß Figur 3 eingebracht wird. Der Durchmesser des Bohrlochs innerhalb des tragenden Untergrunds 15 und der Klebeschicht 14 wird durch den Bohrer 4 vorgegeben während der Durchmesser des Bohrlochs innerhalb des plattenförmigen Elements 13 vom Durchmesser des Fräskopfs 5 vorgegeben ist. Figure 14 shows a first working step of a method according to the invention, in which a drill hole in a plate-shaped element 13 and an adhesive layer 14 through into a supporting substrate 15 by means of a tool according to FIG Figure 3 is introduced. The diameter of the borehole within the supporting substrate 15 and the adhesive layer 14 is predetermined by the drill bit 4, while the diameter of the borehole within the plate-shaped element 13 is predetermined by the diameter of the milling head 5.

Figur 15 zeigt einen weiteren Arbeitsschritt des erfindungsgemäßen Verfahrens, bei dem das erfindungsgemäße Befestigungssystem, umfassend einen Dübel 7 und eine mit dem Dübel 7 drehfest verbundene Hülse 1 in das vorab gebohrte Bohrloch eingeführt wird. Die Stege 2,3 der Hülse 1 gleiten entlang der Wandung des Bohrlochs innerhalb des plattenförmigen Elements 13 und sichern somit eine konzentrische Anordnung der Hülse 1 innerhalb des Bohrlochs des plattenförmigen Elements 13. Es verbleibt somit ein Zwischenraum 16 zwischen dem kegelstumpfförmig ausgebildeten Grundkörper der Hülse 1 und dem das Bohrloch umgebenden Material des plattenförmigen Elements 13. Figure 15 shows a further working step of the method according to the invention, in which the fastening system according to the invention, comprising a dowel 7 and a sleeve 1 connected non-rotatably to the dowel 7, is inserted into the previously drilled borehole. The webs 2, 3 of the sleeve 1 slide along the wall of the borehole within the plate-shaped element 13 and thus ensure a concentric arrangement of the sleeve 1 within the borehole of the plate-shaped element 13. An intermediate space 16 thus remains between the frustoconical base body of the sleeve 1 and the material of the plate-shaped element 13 surrounding the borehole.

Figur 16 zeigt einen weiteren Schritt des erfindungsgemäßen Verfahrens, bei dem durch Einbringen einer Schraube durch die Hülse 1 hindurch in den Dübel 7 die Verankerung des Befestigungselements am tragenden Untergrund 15 bewirkt wird. Die Hülse 1 ist dabei in das plattenförmige Element 13 so eingeschoben worden, dass die Stege 2, 3 eine drehsichere und konzentrische Anordnung der Hülse 1 innerhalb der Bohrung im plattenförmigen Element 13 bewirken. Die Stege 3, die an dem dem Befestigungsmittel 7 abgewandten Ende der Hülse 1 angeordnet sind, schneiden dabei anders als die Stege 2 in das Material des plattenförmigen Elements 13 ein, um hierdurch die drehfeste Anordnung der Hülse 1 innerhalb des plattenförmigen Elements 13 weiter zu fördern. Figure 16 shows a further step of the method according to the invention, in which the anchoring of the fastening element on the supporting substrate 15 is effected by inserting a screw through the sleeve 1 into the dowel 7. The sleeve 1 has been pushed into the plate-shaped element 13 in such a way that the webs 2, 3 effect a rotationally secure and concentric arrangement of the sleeve 1 within the bore in the plate-shaped element 13. The webs 3, which are arranged on the end of the sleeve 1 facing away from the fastening means 7, cut into the material of the plate-shaped element 13, unlike the webs 2, in order to further promote the non-rotatable arrangement of the sleeve 1 within the plate-shaped element 13 .

Figur 17 zeigt einen vierten Schritt eines erfindungsgemäßen Verfahrens, bei dem aushärtbares Material 17 von außen in die Hülse 1 eingebracht wird, durch die Durchbrechungen 12 hindurch tritt und in den Zwischenraum 16 zwischen plattenförmigem Material 13 und Hülse 1 eintritt. Es wird hierbei so viel aushärtbares Material, bspw. Klebeschaum, zugegeben, dass dieses das Bohrloch bis zur Außenseite des plattenförmigen Materials 13 bündig auffüllt. Figure 17 shows a fourth step of a method according to the invention, in which the hardenable material 17 is introduced into the sleeve 1 from the outside, passes through the openings 12 and enters the space 16 between the plate-shaped material 13 and the sleeve 1. In this case, so much curable material, for example adhesive foam, is added that it fills the borehole flush to the outside of the plate-shaped material 13.

Figur 18 zeigt einen weiteren Schritt des erfindungsgemäßen Verfahrens, bei dem das aushärtbare Material 17, eingebracht in dem vorherigen Schritt gemäß Figur 17, an Ort und Stelle ausgehärtet ist und somit eine sichere Verbindung zwischen plattenförmigem Material 13 und dem tragenden Untergrund 5 über das Befestigungssystem, umfassend den Dübel 7 und die Hülse 1, bewirkt. Figure 18 shows a further step of the method according to the invention, in which the hardenable material 17, introduced in the previous step according to FIG figure 17th , is cured in place and thus causes a secure connection between the plate-shaped material 13 and the supporting substrate 5 via the fastening system, including the dowel 7 and the sleeve 1.

Figur 19 schließlich zeigt eine alternative Ausgestaltung des erfindungsgemäßen Verfahrens unter Verwendung eines Befestigungssystems gemäß der in Figur 13 dargestellten sechsten Ausführungsform der Erfindung. Der Spiralhalteteller 11 ist mit seinem spiralförmigen Schneidkanten 11a so in das Material des plattenförmigen Elements 13 eingedrungen, dass eine Verschiebung der Hülse 1 innerhalb des plattenförmigen Elements 13 in Längsrichtung des Befestigungssystems sicher vermieden werden kann. Figure 19 finally shows an alternative embodiment of the method according to the invention using a fastening system according to the FIG Figure 13 illustrated sixth embodiment of the invention. The spiral holding plate 11 has penetrated the material of the plate-shaped element 13 with its spiral-shaped cutting edge 11a in such a way that a displacement of the sleeve 1 within the plate-shaped element 13 in the longitudinal direction of the fastening system can be reliably avoided.

RANIT-Befestigungssysteme GmbH, Lennestraße 5, D-45701 Herten RANIT Austria GmbH, Feldkreuzweg 13, A-6830 RankweilRANIT -fixing systems GmbH, Lennestrasse 5, D-45701 Herten RANIT Austria GmbH, Feldkreuzweg 13, A-6830 Rankweil

Bezugszeichenliste:List of reference symbols:

11
HülseSleeve
22
AbstandselementSpacer
33
AbstandselementSpacer
44th
Bohrerdrill
55
FräskopfMilling head
66th
WerkzeugTool
77th
DübelDowels
88th
Schraubescrew
99
Schraubescrew
1010
HaltetellerHolding plate
1111
SpiralhaltetellerSpiral holding plate
11a11a
SchneidkanteCutting edge
1212th
WanddurchbrechungWall opening
1313th
plattenförmiges Elementplate-shaped element
1414th
KlebeschichtAdhesive layer
1515th
tragender Untergrundload-bearing base
1616
ZwischenraumSpace
1717th
aushärtbares Materialcurable material

Claims (11)

  1. Method for the application of panel-like elements (13) such as panels of insulating material and the like to a load-bearing substructure (15), in particular building walls, wherein a bushing (1) with a fastening means (7) which is able to pass through the bushing (1) is introduced into the panel-like element (13) in recessed manner in a hole which is predrilled through the panel-like element (13) into the substrate, and is anchored in the substrate by the fastening means (7), wherein the bushing (1) has a plurality of wall breakthroughs (12), the bushing (1) has an outer diameter over at least a part of its length which is equal to not more than 95%, preferably not more than 90%, particularly preferably not more than 80% of the diameter of the hole that was predrilled in the panel-like element (13), and after the bushing (1) has been introduced into the panel-like element (13) and the fastening means (7) has been anchored in the substrate a curable adhesive (17) is introduced into the bushing (1), passes through the plurality of wall breakthroughs (12) and comes into contact with the panel-like element (13), characterized in that spacers (2, 3) arranged on the outside of the bushing (1) are in contact with the panel-like element (13) after insertion of the bushing (1) into it and prevent the bushing (1) from twisting inside the panel-like element (13) while the fastening means (7) is anchored in the substrate.
  2. Method according to Claim 1, characterized in that the bushing (1) is arranged concentrically in a hole with a round cross-section, so that before it cures the adhesive (17) substantially completely surrounds the bushing (1).
  3. Fastening system for applying panel-like elements (13) such as insulation panels and the like to a load-bearing substrate (15), in particular building walls, comprising a fastening means (7) for anchoring the fastening system in the substrate and a bushing (1) which is arranged behind the fastening means (7) in the anchoring direction and the length and diameter of which are adapted to the dimensions of the panel-like element (13), wherein bushing (1) has a plurality of wall breakthroughs (12), wherein the bushing (1) has at least two spacers (2, 3) distributed over its circumference, which spacers are designed to protrude beyond the outer diameter of the bushing (1), and the spacers (2, 3) are designed in the form of tines or fins, characterized in that the at least two spacers (2, 3) are arranged both on the end of the bushing (1) closest to the fastening means (7) and on the end thereof farthest from said fastening means.
  4. Fastening system according to Claim 3, characterized in that two tine-like or fin-like spacers (2,3) are each provided to be arranged on each end of the bushing and around the circumerence of the bushing (1) at an angle of 180° with respect to each other.
  5. Fastening system according to Claim 3 or 4, characterized in that the spacers (2, 3) on the end of the bushing (1) closest to the fastening means (7) are of lower height relative the outer diameter of the bushing (1) than the spacers (2, 3) which are arranged on the end farthest from the bushing (1).
  6. Fastening system according to any one of Claims 3 to 5, characterized in that the fastening means is a screw (8), via which the anchoring of the fastening system in the load-bearing substrate (15) can be effected directly.
  7. Fastening system according to any one of Claims 3 to 5, characterized in that the fastening means is a combination of dowel (7) and screw (8), wherein the dowel (7) can be connected to the bushing in torque-resistant manner.
  8. Fastening system according to any one of Claims 3 to 7, characterized in that the bushing (1) is substantially cylindrical in shape.
  9. Fastening system according to any one of Claims 3 to 7, characterized in that the bushing (1) is substantially in the shape of a truncated cone.
  10. Fastening system according to any one of Claims 3 to 9, characterized in that a holding disc (10) is arranged either permanently or detachably from the bushing (1) on the end of the bushing (1) farthest from the fastening means (7).
  11. System consisting of fastening means according to any one of Claims 3 to 10 and a load-bearing substrate (15) as well as a panel-like element (13), which is designed for performing the method according either of Claims 1 to 2,
    characterized in that drillholes preferably having different diameters are created both in the load-bearing substrate and in the panel-like element (13), wherein the diameter of the bushing (1) is matched to the diameter of the drillhole in the panel-like element (13) in such manner that over at least a part of its length it has a value equal to not more than 95%, preferably not more than 90%, particularly preferably not more than 80% of the diameter of the drillhole.
EP18180173.9A 2017-06-28 2018-06-27 Method for the application of insulating panels and fixing system for the same Active EP3421678B1 (en)

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DE102017210974.2A DE102017210974A1 (en) 2017-06-28 2017-06-28 Process for applying insulation boards and fastening system therefor

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Families Citing this family (3)

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DE102020101711A1 (en) 2020-01-24 2021-07-29 Steinbrunner Häringer GbR (vertretungsberechtigte Gesellschafter: Christian Steinbrunner, 84385 Egglham + Josef Häringer, 84385 Egglham) Fire-resistant anchor system and method for attaching a fire-resistant anchor system
CN112359993B (en) * 2020-11-14 2021-12-07 上海颐烨笙建筑工程有限公司 Insulation board structure and construction process thereof
PL4102085T3 (en) 2021-06-11 2024-01-29 Ranit-Befestigungssysteme Gmbh Fastening system for mounting plate-shaped elements

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840521C1 (en) * 1998-09-04 2000-02-10 Ejot Kunststofftech Gmbh Fastener for insulation panel has a two part sleeve which provides an aligned grip for different thicknesses of panel and which is secured to the base by fittings
DE102007028190A1 (en) 2007-06-20 2008-12-24 Fischerwerke Gmbh & Co. Kg Fastening element for fastening a thermal insulation panel to a building surface and method for fixing a thermal insulation panel with the fastening element
PL3138974T3 (en) 2015-08-20 2020-05-18 Ranit Austria Gmbh Fastening system for attaching insulating boards or similar insulating material to a supporting base

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