EP0620335B1 - Fastening element for securing insulating panels - Google Patents

Fastening element for securing insulating panels Download PDF

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Publication number
EP0620335B1
EP0620335B1 EP94104063A EP94104063A EP0620335B1 EP 0620335 B1 EP0620335 B1 EP 0620335B1 EP 94104063 A EP94104063 A EP 94104063A EP 94104063 A EP94104063 A EP 94104063A EP 0620335 B1 EP0620335 B1 EP 0620335B1
Authority
EP
European Patent Office
Prior art keywords
nail
fastening element
clamping sleeve
holding portion
sleeve
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.)
Expired - Lifetime
Application number
EP94104063A
Other languages
German (de)
French (fr)
Other versions
EP0620335A1 (en
Inventor
Albert Frischmann
Johannes Rieger
Manfred Rinklake
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.)
Upat GmbH and Co
Upat Max Langensiepen KG
Original Assignee
Upat GmbH and Co
Upat Max Langensiepen KG
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Publication date
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Publication of EP0620335A1 publication Critical patent/EP0620335A1/en
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Publication of EP0620335B1 publication Critical patent/EP0620335B1/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
    • E04B1/7633—Dowels with enlarged insulation retaining head
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/3601—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer
    • E04D3/3603—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer the fastening means being screws or nails

Definitions

  • the invention relates to a fastening element for fastening insulation boards to components, with a sleeve-shaped holding part having a head plate and a fastener according to the preamble of claim 1.
  • Such a fastening element is known from WO-A-9 101 420, the depth of penetration of the fastener in a predrilled component being fixed with the aid of a stop collar seated on the surface of the component, and the space available for the insulation boards between the head plate and the Top of the component can be adjusted both during assembly and subsequently by shortening the distance between the top plate and the top of the component. to adjust the adapter sleeve is moved in the direction of impact of the fastener along the shaft of the fastener according to the required adjustment.
  • EP-0 420 799 discloses a fastening element with a sleeve-shaped holding part having a head plate, which can be clamped against the component by means of a nail for holding the insulation board.
  • the length of the holding part corresponds exactly to the thickness of the insulation board, so that the end face of the holding part sits on the component when the nail is driven in.
  • the invention has for its object to provide a fastener for attaching insulation panels to components that largely unaffected by unevenness of the component surface or the penetration depth of the nails ensures a uniform tensioning of the holding part and thus the insulation board.
  • the nail driven into the anchoring base for example by means of compressed air-operated setting tools, generates the nail in the inner bore of the Holding part supported clamping sleeve a tensile force acting on the holding part and thus on the head plate in the direction of the component, which leads to a tension of the holding part and thus the insulation plate.
  • the friction of the nail in the clamping sleeve is set so that the insulation board is clamped sufficiently against the component without immersing the head plate.
  • the depth of penetration of the nail into the anchoring base largely depends on the strength of the anchoring base.
  • the tensioning of the insulation board is determined by the friction of the nail in the adapter sleeve regardless of the penetration depth of the nail.
  • the entire length of the nail shaft there is a possibility of compensating for unevenness or different penetration depth of the nail with constant tension acting on the insulation board.
  • Either a closed sleeve with a slightly smaller inner diameter than the outer diameter of the nail shaft or a spring sleeve provided with a longitudinal slot can be used as the clamping sleeve.
  • the length of the holding part is somewhat less than the thickness of the insulation plate to be fastened.
  • the clamping of the adapter sleeve on the nail shank can result in the head plate being pulled against the component until the end face of the holding part lies against the component surface.
  • the holding part limits the distance of the head plate from the surface of the component. Due to the very soft insulation board, the edges of the head plate do not bulge in these cases, but only a somewhat stronger compression of the insulation board in the area of the fastening element.
  • the clamping sleeve can be supported in the holding part in that the holding part has an enlarged first section starting from the top plate and then a second section, the diameter of which is approximately equal to the diameter of the nail shaft reduced to form a stop shoulder.
  • the clamping sleeve is now arranged on the nail shaft in such a way that it can be supported on this stop shoulder. It is expedient to arrange a metal disc on the stop shoulder.
  • the clamping sleeve is locked in the inner bore of the holding part. This can be done in such a way that either the clamping sleeve is molded around as an insert during the injection molding process of the holding part or by inserting the clamping sleeve in an expansion of the inner bore of the holding part. In this case it is advisable to close the extension with a cover cap and thus fix the clamping sleeve in the sleeve part so that it cannot move in both directions.
  • the clamping sleeve can also be locked in the sleeve part by means of projections and / or flanges of the clamping sleeve which engage in the sleeve part.
  • the fastening element 1 shown in FIG. 1 consists of a sleeve-shaped holding part 2, on the end of which a head plate 3 is integrally formed and protrudes radially.
  • the inner bore 4 of the holding part has an enlarged first section 4a, which is followed by a second section 4b with the formation of a stop shoulder 5, the diameter of which is reduced approximately to the shaft diameter of the nail 6.
  • the nail is held in the sleeve part by means of ribs or a correspondingly adapted diameter of section 4b.
  • a clamping sleeve 7 is slid onto the nail shaft and is supported with its lower edge over the metal disk 8 on the stop shoulder 5 of the sleeve part.
  • the clamping sleeve 7 is formed with a continuous longitudinal slot 9 as a spring sleeve, so that the friction of the nail in the clamping sleeve can be determined via the elasticity of the spring sleeve.
  • the fastening element 1 is pressed in through the insulation board 10 until the head plate 3 rests on the outer surface of the insulation board 10.
  • pre-drilling may be required to insert the holding part.
  • the nail 6 is now driven into the component 11 by means of a setting tool operated, for example, by compressed air (see FIG. 2).
  • the friction of the nail 6 in the clamping sleeve 7 creates a tensile force during the driving-in process, which leads to the insulation board 10 being braced by means of the head plate 3.
  • the nail 6 moves relative to the adapter sleeve and penetrates into the component 11.
  • the penetration depth depends, among other things, on the strength of the component 11 on the one hand and on the clamping of the clamping sleeve 7 on the nail shaft on the other hand. It is expedient that the length of the holding part 2 is somewhat less than the thickness of the insulating plate 10. In the case of the usual insulating plates, the axial displacement of the holding part 2 when the nail is driven in is limited by the head plate. In the case of insulation boards with very low compressive strength, the end face of the holding part 2 may sit on the component 11. This ensures that the distance of the head plate from the surface of the component always remains the same and at the same time a sufficient tensioning of very soft insulation boards is made possible.
  • a thin-walled protective cover 17 is arranged on the end face of the holding part 2. During the assembly process, this protective cover is compressed in accordance with the axial movement of the holding part 2, so that the nail shaft exposed between the holding part 2 and the component 11 is sealed.
  • the protective cover 17 is either integrally formed on the holding part 2 or attached as a separate part to the end face of the holding part 2.
  • the enlarged section 4a is either filled with a sealing compound or closed with a stopper 18 on the opening of the enlarged section 4a, as shown in FIG.
  • the clamping sleeve 7 is embedded in an extension 12 of the reduced diameter portion 4b of the holding part 2a. This is done by injection molding in such a way that the clamping sleeve 7 is inserted as an insert into the injection molding tool for the holding part 2a and overmolded.
  • the holding part 2b with the extension 12 for the clamping sleeve 7 is produced by the injection molding process.
  • the clamping sleeve 7 is then inserted into the extension 12 and the clamping sleeve is locked in the axial direction by pressing in the cover disk 13.
  • the clamping sleeve 14 is fixed in the holding part 2c via radially projecting projections 15 and additionally a collar-shaped flange 16.
  • the clamping sleeve 14 can be inserted either by extrusion coating with the holding part 2c or by an assembly process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Insulating Bodies (AREA)
  • Thermal Insulation (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The fastening element (1) for securing insulating panels (10) comprises a sleeve-shaped retaining part (2) at whose one end there is integrally formed a radially projecting head plate (3). By means of a nail (6) which can be driven in through the inner bore (4) of the retaining part (2), the retaining part (2), and thus the insulating panel (10), can be braced against the structural part (11). For bracing purposes, use is made of a clamping sleeve (7) which is inserted in the inner bore (4) of the retaining part and engages around the nail shank (6) in a clamping manner. <IMAGE>

Description

Die Erfindung betrifft ein Befestigungselement zum Befestigen von Dämmplatten an Bauteilen, mit einem eine Kopfplatte aufweisenden hülsenförmigen Halteteil und einem Befestiger gemäß dem Oberbegriff des Anspruches 1.The invention relates to a fastening element for fastening insulation boards to components, with a sleeve-shaped holding part having a head plate and a fastener according to the preamble of claim 1.

Aus der WO-A-9 101 420 ist ein derartiges Befestigungselement bekannt, wobei die Eindringtiefe des Befestigers in einem vorgebohrten Bauteil mit Hilfe eines auf die Oberfläche des Bauteiles aufsitzenden Anschlagbundes festgelegt ist und der für die Dämmplatten zur Verfügung stehende Raum zwischen der Kopfplatte und der Oberseite des Bauteils sowohl bei der Montage als auch nachträglich durch Verkürzen des Abstandes zwischen der Kopfplatte und der Bauteiloberseite angepaßt werden kann. zum Anpassen wird die Spannhülse in Einschlagrichtung des Befestigers entlang dem Schaft des Befestigers entsprechend der erforderlichen Anpassung verschoben.Such a fastening element is known from WO-A-9 101 420, the depth of penetration of the fastener in a predrilled component being fixed with the aid of a stop collar seated on the surface of the component, and the space available for the insulation boards between the head plate and the Top of the component can be adjusted both during assembly and subsequently by shortening the distance between the top plate and the top of the component. to adjust the adapter sleeve is moved in the direction of impact of the fastener along the shaft of the fastener according to the required adjustment.

Zum Befestigen von Dämmplatten, die üblicherweise aus Material mit geringer Druckfestigkeit bestehen, ist aus der EP-0 420 799 ein Befestigungselement mit einem eine Kopfplatte aufweisenden hülsenförmigen Halteteil bekannt, das mittels eines Nagels zur Halterung der Dämmplatte gegen das Bauteil verspannbar ist. Die Länge des Halteteiles entspricht dabei exakt der Dicke der Dämmplatte, so daß die Stirnseite des Halteteiles auf dem Bauteil beim Eintreibvorgang des Nagels aufsitzt. Mit dieser Lösung wird zwar vermieden, daß beim Eintreibvorgang ein zu starker Zug durch die Kopfplatte auf die Dämmplatte ausgeübt wird, allerdings ist es erforderlich, die unterschiedliche Eindringtiefe des Nagels in Abhängigkeit von der Festigkeit des Verankerungsgrundes durch eine am Halteteil angeordnete Knautschzone aufzufangen. Die Verspannung des Halteteiles erfolgt nämlich durch Aufsitzen des Nagelkopfes auf einer Auflagefläche des Halteteiles, so daß zur Vermeidung einer Zerstörung des Halteteiles eine solche Knautschzone erforderlich ist. Nachteilig bei dieser bekannten Lösung ist jedoch, daß die Abstimmung der Knautschzone auf den Verankerungsgrund einerseits und die exakte Abstimmung der Länge des Hülsenteiles auf die zu befestigende Dämmplatte andererseits, insbesondere bei Unebenheiten der Außenfläche des Bauteiles, zu Fehlmontagen durch zu geringe bzw. zu starke Verspannung der Dämmplatte führen kann.For fastening insulation boards, which usually consist of material with low compressive strength, EP-0 420 799 discloses a fastening element with a sleeve-shaped holding part having a head plate, which can be clamped against the component by means of a nail for holding the insulation board. The length of the holding part corresponds exactly to the thickness of the insulation board, so that the end face of the holding part sits on the component when the nail is driven in. With this solution it is avoided that too much tension is exerted through the head plate on the insulation plate during the driving-in process, but it is necessary absorb the different penetration depth of the nail depending on the strength of the anchoring base by means of a crumple zone arranged on the holding part. This is because the holding part is braced by seating the nail head on a support surface of the holding part, so that such a crumple zone is necessary to avoid destroying the holding part. A disadvantage of this known solution, however, is that the adjustment of the crumple zone to the anchoring base on the one hand and the exact adjustment of the length of the sleeve part to the insulation board to be fastened on the other hand, in particular in the event of unevenness in the outer surface of the component, to incorrect assembly due to insufficient or excessive tension the insulation board can lead.

Der Erfindung liegt die Aufgabe zugrunde, ein Befestigungselement zum Befestigen von Dämmplatten an Bauteilen zu schaffen, das weitgehendst unbeeinflußt von Unebenheiten der Bauteiloberfläche oder der Eindringtiefe der Nägel eine gleichmäßige Verspannung des Halteteiles und damit der Dämmplatte gewährleistet.The invention has for its object to provide a fastener for attaching insulation panels to components that largely unaffected by unevenness of the component surface or the penetration depth of the nails ensures a uniform tensioning of the holding part and thus the insulation board.

Die Lösung dieser Aufgabe wird durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale erreicht. Der beispielsweise mittels druckluftbetriebener Setzgeräte in den Verankerungsgrund eingetriebene Nagel erzeugt über die in der Innenbohrung des Halteteiles abgestützte Spannhülse eine auf das Halteteil und damit auf die Kopfplatte wirkende Zugkraft in Richtung Bauteil, die zu einer Verspannung des Halteteiles und damit der Dämmplatte führt. Die Friktion des Nagels in der Spannhülse ist so eingestellt, daß die Dämmplatte ohne Eintauchen der Kopfplatte ausreichend stark gegen das Bauteil verspannt wird. Die Eindringtiefe des Nagels in den Verankerungsgrund hängt weitgehendst von der Festigkeit des Verankerungsgrundes ab. Mit der Spannhülse wird die Verspannung der Dämmplatte unabhängig von der Eindringtiefe des Nagels ausschließlich von der Friktion des Nagels in der Spannhülse bestimmt. Somit ergibt sich entsprechend der gesamten Länge des Nagelschaftes eine Ausgleichsmöglichkeit für Unebenheiten oder unterschiedlicher Eindringtiefe des Nagels bei stets gleichbleibender, auf die Dämmplatte wirkender Zugkraft.This object is achieved by the features specified in the characterizing part of claim 1. The nail driven into the anchoring base, for example by means of compressed air-operated setting tools, generates the nail in the inner bore of the Holding part supported clamping sleeve a tensile force acting on the holding part and thus on the head plate in the direction of the component, which leads to a tension of the holding part and thus the insulation plate. The friction of the nail in the clamping sleeve is set so that the insulation board is clamped sufficiently against the component without immersing the head plate. The depth of penetration of the nail into the anchoring base largely depends on the strength of the anchoring base. With the adapter sleeve, the tensioning of the insulation board is determined by the friction of the nail in the adapter sleeve regardless of the penetration depth of the nail. Thus, according to the entire length of the nail shaft, there is a possibility of compensating for unevenness or different penetration depth of the nail with constant tension acting on the insulation board.

Als Spannhülse kann entweder eine geschlossene Hülse mit einem etwas geringeren Innendurchmesser als der Außendurchmesser des Nagelschaftes oder eine mit einem Längsschlitz versehene Federhülse verwendet werden.Either a closed sleeve with a slightly smaller inner diameter than the outer diameter of the nail shaft or a spring sleeve provided with a longitudinal slot can be used as the clamping sleeve.

Um die Verspannung der Dämmplatte über die Kopfplatte des Halteteiles sicherzustellen ist es zweckmäßig, daß die Länge des Halteteiles etwas geringer als die Dicke der zu befestigenden Dämmplatte ist. Bei Dämmplatten mit sehr geringer Druckfestigkeit kann die Klemmung der Spannhülse auf dem Nagelschaft dazu führen, daß die Kopfplatte soweit gegen das Bauteil gezogen wird, bis die Stirnseite des Halteteiles an der Bauteiloberfläche anliegt. In diesen Ausnahmefällen begrenzt das Halteteil den Abstand der Kopfplatte von der Oberfläche des Bauteiles. Durch die sehr weiche Dämmplatte kommt es auch in diesen Fällen nicht zu einer Aufwölbung der Ränder der Kopfplatte, sondern lediglich zu einer etwas stärkeren Stauchung der Dämmplatte im Bereich des Befestigungselementes.In order to ensure that the insulation board is braced over the top plate of the holding part, it is expedient that the length of the holding part is somewhat less than the thickness of the insulation plate to be fastened. In the case of insulation boards with very low compressive strength, the clamping of the adapter sleeve on the nail shank can result in the head plate being pulled against the component until the end face of the holding part lies against the component surface. In these exceptional cases, the holding part limits the distance of the head plate from the surface of the component. Due to the very soft insulation board, the edges of the head plate do not bulge in these cases, but only a somewhat stronger compression of the insulation board in the area of the fastening element.

Die Abstützung der Spannhülse im Halteteil kann dadurch erfolgen, daß das Halteteil ein von der Kopfplatte ausgehenden erweiterten ersten Abschnitt und daran anschließend einen zweiten Abschnitt aufweist, dessen Durchmesser sich etwa auf den Durchmesser des Nagelschaftes unter Bildung einer Anschlagschulter reduziert. Die Spannhülse ist auf dem Nagelschaft nunmehr in der Weise angeordnet, daß sie sich an dieser Anschlagschulter abstützen kann. Dabei ist es zweckmäßig, auf der Anschlagschulter eine Metallscheibe anzuordnen.The clamping sleeve can be supported in the holding part in that the holding part has an enlarged first section starting from the top plate and then a second section, the diameter of which is approximately equal to the diameter of the nail shaft reduced to form a stop shoulder. The clamping sleeve is now arranged on the nail shaft in such a way that it can be supported on this stop shoulder. It is expedient to arrange a metal disc on the stop shoulder.

Bei anderen Ausführungsformen der Erfindung ist die Spannhülse in der Innenbohrung des Halteteiles arretiert. Dies kann in der Weise erfolgen, daß entweder die Spannhülse als Einlegeteil beim Spritzvorgang des Halteteiles umspritzt wird oder durch Einsetzen der Spannhülse in einer Erweiterung der Innenbohrung des Halteteils. In diesem Fall empfiehlt es sich, die Erweiterung durch eine Abdeckkappe zu verschließen und somit die Spannhülse im Hülsenteil unverschiebbar nach beiden Richtungen festzulegen.In other embodiments of the invention, the clamping sleeve is locked in the inner bore of the holding part. This can be done in such a way that either the clamping sleeve is molded around as an insert during the injection molding process of the holding part or by inserting the clamping sleeve in an expansion of the inner bore of the holding part. In this case it is advisable to close the extension with a cover cap and thus fix the clamping sleeve in the sleeve part so that it cannot move in both directions.

Eine Arretierung der Spannhülse im Hülsenteil ist auch durch in das Hülsenteil eingreifende Vorsprünge und/oder Umbördelungen der Spannhülse möglich.The clamping sleeve can also be locked in the sleeve part by means of projections and / or flanges of the clamping sleeve which engage in the sleeve part.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt.Exemplary embodiments of the invention are shown in the drawing.

Es zeigen:

Figur 1
das Befestigungselement vor der Montage,
Figur 2
das Befestigungselement nach Figur 1 nach der Montage,
Figur 3
eine Ausführungsform des Befestigungselementes mit umspritzter Spannhülse,
Figur 4
das Befestigungselement mit im Hülsenteil eingesetzter und arretierter Spannhülse und
Figur 5
eine Variante des Befestigungselementes mit im Hülsenteil arretierter Spannhülse.
Show it:
Figure 1
the fastener before assembly,
Figure 2
the fastener of Figure 1 after assembly,
Figure 3
one embodiment of the fastening element with overmolded adapter sleeve,
Figure 4
the fastener with inserted and locked clamping sleeve in the sleeve part and
Figure 5
a variant of the fastener with the clamping sleeve locked in the sleeve part.

Das in Figur 1 dargestellte Befestigungselement 1 besteht aus einem hülsenförmigen Halteteil 2, an dessem einen Ende eine Kopfplatte 3 einstückig und radial abstehend angeformt ist. Die Innenbohrung 4 des Halteteiles weist einen erweiterten ersten Abschnitt 4a auf, an den sich unter Bildung einer Anschlagschulter 5 ein zweiter Abschnitt 4b anschließt, dessen Durchmesser sich etwa auf den Schaftdurchmesser des Nagels 6 reduziert. Über Rippen oder einem entsprechend angepaßten Durchmesser des Abschnittes 4b wird der Nagel im Hülsenteil gehalten. Auf dem Nagelschaft ist eine Spannhülse 7 klemmend aufgeschoben, die sich mit Ihrer Unterkante über die Metallscheibe 8 an der Anschlagschulter 5 des Hülsenteiles abstützt. Die Spannhülse 7 ist mit einem durchgehenden Längsschlitz 9 als Federhülse ausgebildet, so daß über die Elastizität der Federhülse die Friktion des Nagels in der Spannhülse festgelegt werden kann.The fastening element 1 shown in FIG. 1 consists of a sleeve-shaped holding part 2, on the end of which a head plate 3 is integrally formed and protrudes radially. The inner bore 4 of the holding part has an enlarged first section 4a, which is followed by a second section 4b with the formation of a stop shoulder 5, the diameter of which is reduced approximately to the shaft diameter of the nail 6. The nail is held in the sleeve part by means of ribs or a correspondingly adapted diameter of section 4b. A clamping sleeve 7 is slid onto the nail shaft and is supported with its lower edge over the metal disk 8 on the stop shoulder 5 of the sleeve part. The clamping sleeve 7 is formed with a continuous longitudinal slot 9 as a spring sleeve, so that the friction of the nail in the clamping sleeve can be determined via the elasticity of the spring sleeve.

Zur Befestigung der Dämmplatte 10 am Bauteil 11 wird das Befestigungselement 1 durch die Dämmplatte 10 hindurch soweit eingedrückt, bis die Kopfplatte 3 an der Außenfläche der Dämmplatte 10 anliegt. Je nach Druckfestigkeit der Dämmplatte kann ein Vorbohren für das Einschieben des Halteteiles erforderlich sein. Mittels eines beispielsweise durch Druckluft betriebenen Setzgerätes wird nunmehr der Nagel 6 in das Bauteil 11 eingetrieben (siehe Figur 2). Durch die Friktion des Nagels 6 in der Spannhülse 7 entsteht beim Eintreibvorgang eine Zugkraft, die zu einer Verspannung der Dämmplatte 10 mittels der Kopfplatte 3 führt. Gleichzeitig verschiebt sich der Nagel 6 relativ zur Spannhülse und dringt in das Bauteil 11 ein. Die Eindringtiefe hängt unter anderem von der Festigkeit des Bauteiles 11 einerseits und von der Klemmung der Spannhülse 7 auf dem Nagelschaft andererseits ab. Es ist zweckmäßig, daß die Länge des Halteteiles 2 etwas geringer ist als die Dicke der Dämmplatte 10. Bei den üblichen Dämmplatten wird dadurch die axiale Verschiebung des Halteteiles 2 beim Eintreibvorgang des Nagels von der Kopfplatte begrenzt. Bei Dämmplatten mit sehr geringer Druckfestigkeit kommt es unter Umständen zum Aufsitzen der Stirnseite des Halteteiles 2 auf dem Bauteil 11. Somit ist auch in solchen Fällen gewährleistet, daß der Abstand der Kopfplatte von der Oberfläche des Bauteiles stets gleich bleibt und gleichzeitig eine ausreichende Verspannung auch von sehr weichen Dämmplatten ermöglicht wird. Durch die Verspannung des Halteteiles und damit der Dämmplatte über die auf dem Nagelschaft axial verschiebbare Spannhülse 7 ist es möglich, größere Toleranzen in der Dicke der Dämmplatte einerseits als auch Unebenheiten der Oberfläche des Bauteiles 11 andererseits auszugleichen.To fasten the insulation board 10 to the component 11, the fastening element 1 is pressed in through the insulation board 10 until the head plate 3 rests on the outer surface of the insulation board 10. Depending on the compressive strength of the insulation board, pre-drilling may be required to insert the holding part. The nail 6 is now driven into the component 11 by means of a setting tool operated, for example, by compressed air (see FIG. 2). The friction of the nail 6 in the clamping sleeve 7 creates a tensile force during the driving-in process, which leads to the insulation board 10 being braced by means of the head plate 3. At the same time, the nail 6 moves relative to the adapter sleeve and penetrates into the component 11. The penetration depth depends, among other things, on the strength of the component 11 on the one hand and on the clamping of the clamping sleeve 7 on the nail shaft on the other hand. It is expedient that the length of the holding part 2 is somewhat less than the thickness of the insulating plate 10. In the case of the usual insulating plates, the axial displacement of the holding part 2 when the nail is driven in is limited by the head plate. In the case of insulation boards with very low compressive strength, the end face of the holding part 2 may sit on the component 11. This ensures that the distance of the head plate from the surface of the component always remains the same and at the same time a sufficient tensioning of very soft insulation boards is made possible. Because of the tension of the holding part and thus the insulation board via the clamping sleeve 7, which can be moved axially on the nail shaft, it is possible to compensate for larger tolerances in the thickness of the insulation board on the one hand and unevenness in the surface of the component 11 on the other hand.

Zum Schutz des Nagels gegen Korrosion nach der Montage ist an der Stirnseite des Halteteils 2 eine dünnwandige Schutzhülle 17 angeordnet. Beim Montagevorgang wird diese Schutzhülle entsprechend der axialen Bewegung des Halteteiles 2 gestaucht, so daß eine Abdichtung des zwischen Halteteil 2 und Bauteil 11 freiliegenden Nagelschaftes erfolgt. Die Schutzhülle 17 wird entweder einstückig an das Halteteil 2 angeformt oder als separates Teil an die Stirnseite des Halteteiles 2 angefügt.To protect the nail against corrosion after assembly, a thin-walled protective cover 17 is arranged on the end face of the holding part 2. During the assembly process, this protective cover is compressed in accordance with the axial movement of the holding part 2, so that the nail shaft exposed between the holding part 2 and the component 11 is sealed. The protective cover 17 is either integrally formed on the holding part 2 or attached as a separate part to the end face of the holding part 2.

Zur Abdichtung des in dem erweiterten Abschnitt 4a der Innenbohrung 4 des Halteteiles einliegenden Nagelschaftes wird der erweiterte Abschnitt 4a entweder mit einer Dichtmasse ausgefüllt oder auf die Öffnung des erweiterten Abschnittes 4a - wie in Figur 2 dargestellt - mit einem Stopfen 18 verschlossen.To seal the nail shaft lying in the enlarged section 4a of the inner bore 4 of the holding part, the enlarged section 4a is either filled with a sealing compound or closed with a stopper 18 on the opening of the enlarged section 4a, as shown in FIG.

Bei der in Figur 3 dargestellten Ausführungsform ist die Spannhülse 7 in einer Erweiterung 12 des im Durchmesser reduzierten Abschnittes 4b des Halteteiles 2a eingelassen. Dies erfolgt spritzgußtechnisch in der Weise, daß die Spannhülse 7 als Einlegeteil in das Spritzgußwerkzeug für das Halteteil 2a eingelegt und umspritzt wird.In the embodiment shown in Figure 3, the clamping sleeve 7 is embedded in an extension 12 of the reduced diameter portion 4b of the holding part 2a. This is done by injection molding in such a way that the clamping sleeve 7 is inserted as an insert into the injection molding tool for the holding part 2a and overmolded.

Bei der Ausführungsform nach Figur 4 wird das Halteteil 2b mit der Erweiterung 12 für die Spannhülse 7 im Spritzgußverfahren hergestellt. In einem Montagevorgang wird dann die Spannhülse 7 in die Erweiterung 12 eingelegt und die Spannhülse durch Einpressen der Abdeckscheibe 13 in axialer Richtung arretiert.In the embodiment according to FIG. 4, the holding part 2b with the extension 12 for the clamping sleeve 7 is produced by the injection molding process. In an assembly process, the clamping sleeve 7 is then inserted into the extension 12 and the clamping sleeve is locked in the axial direction by pressing in the cover disk 13.

Bei der in Figur 5 dargestellten Ausführungsform ist die Spannhülse 14 über radial abstehende Vorsprünge 15 und zusätzlich einer kragenförmigen Umbördelung 16 im Halteteil 2c festgelegt. Das Einsetzen der Spannhülse 14 kann entweder durch Umspritzen mit dem Halteteil 2c oder durch einen Montagevorgang erfolgen.In the embodiment shown in FIG. 5, the clamping sleeve 14 is fixed in the holding part 2c via radially projecting projections 15 and additionally a collar-shaped flange 16. The clamping sleeve 14 can be inserted either by extrusion coating with the holding part 2c or by an assembly process.

Claims (9)

  1. A fastening element (1) for fastening insulating panels (10) to components (11), comprising a sleeve-shaped holding portion (2, 2a, 2b, 2c) which has a head plate (3) and which has an internal bore (4), and a fastener (6) which can be driven into the component (11) through the internal bore (4) in the holding portion (2, 2a, 2b, 2c) and which braces the holding portion (2, 2a, 2b, 2c), wherein fitted in the internal bore (4) of the holding portion (2, 2a, 2b, 2c) is a clamping sleeve (7, 14) which clampingly embraces the shank of the fastener (6), characterised in that the fastener is a nail (6) which has a nail head (5) and a nail point and which can be driven into the component (11) without preliminary drilling, that during fitting of the fastening element when the nail (6) is driven into the component (11) the clamping sleeve (7, 14) is axially displaceable from a first position remote from the nail head (5) into a second position of being closer to the nail head (5) in opposite relationship to the direction in which the nail (6) is driven into the component (11), whereby the distance between the head plate (3) and the nail point increases in a manner corresponding to the displacement of the clamping sleeve (7, 14).
  2. A fastening element (1) according to claim 1 characterised in that the clamping sleeve (7, 14) is in the form of a spring sleeve, with a longitudinal slot (9).
  3. A fastening element (1) according to claim 1 characterised in that the internal bore (4) of the holding portion (2) has an enlarged first portion (4a) extending from the head plate (3) and adjoining same a second portion (4b) whose diameter reduces approximately to the diameter of the nail shank, forming an abutment shoulder (5), and that the clamping sleeve (7) is supported against the abutment shoulder (5).
  4. A fastening element (1) according to claim 3 characterised in that a metal washer (8) is arranged on the abutment shoulder (5).
  5. A fastening element (1) according to claim 1 characterised in that the clamping sleeve (7, 14) is arrested in the internal bore (4) of the holding portion (2a, 2b, 2c).
  6. A fastening element (1) according to claim 5 characterised in that the clamping sleeve (7) is fitted in an enlargement (12) in the internal bore (4) of the holding portion (2a, 2b).
  7. A fastening element (1) according to claim 6 characterised in that the enlargement (12) is open in the direction of the head plate (3) and the clamping sleeve (7) is arrested in the enlargement (12) by a cover disc (13).
  8. A fastening element (1) according to claim 5 characterised in that the clamping sleeve (14) has flanged-over portions (16) and/or projections (15) which engage into the wall of the internal bore (4).
  9. A fastening element (1) according to claim 1 characterised in that an anti-corrosion sheath (17) enclosing the nail shank is arranged at the end of the holding portion (2, 2a, 2b, 2c) which is opposite the head plate (3).
EP94104063A 1993-04-05 1994-03-16 Fastening element for securing insulating panels Expired - Lifetime EP0620335B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4311144A DE4311144A1 (en) 1993-04-05 1993-04-05 Fastening element for fastening insulation boards
DE4311144 1993-04-05

Publications (2)

Publication Number Publication Date
EP0620335A1 EP0620335A1 (en) 1994-10-19
EP0620335B1 true EP0620335B1 (en) 1997-07-09

Family

ID=6484779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94104063A Expired - Lifetime EP0620335B1 (en) 1993-04-05 1994-03-16 Fastening element for securing insulating panels

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EP (1) EP0620335B1 (en)
AT (1) ATE155194T1 (en)
DE (2) DE4311144A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403717A1 (en) * 1994-02-07 1995-08-10 Hilti Ag Fastening element for fastening insulation panels
DE9422187U1 (en) 1994-12-20 1998-09-24 Upat Gmbh & Co, 79312 Emmendingen Holding element for fastening insulation boards
DE19536171A1 (en) * 1995-09-28 1997-04-03 Ejot Kunststofftech Gmbh Fastening element for fastening heat-insulating materials
DE202005002534U1 (en) † 2005-02-17 2006-06-29 Fischerwerke Artur Fischer Gmbh & Co. Kg insulation holders
DE102006027628A1 (en) * 2006-06-13 2007-12-20 Gräwe, Bernd Method and device for mounting components, in particular insulating panels, on a wall
EP2610413B1 (en) * 2011-12-27 2015-06-17 EJOT Baubefestigungen GmbH Dowel with clamping sleeve

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1231157A1 (en) * 1982-10-06 1986-05-15 Центральный научно-исследовательский и проектно-экспериментальный институт промышленных зданий и сооружений Element for fastening heat insulation panels to planking
DE3538271A1 (en) * 1985-10-28 1987-04-30 Niederberg Chemie Retaining means for flat roofs
DE3638234A1 (en) * 1986-11-08 1988-05-11 Niederberg Chemie Fastening means
US5066181A (en) * 1987-01-21 1991-11-19 Stadler Ag Attachment element with large washer
AT392330B (en) * 1989-07-14 1991-03-11 Sfs Stadler Holding Ag FASTENING ELEMENT FOR FIXING INSULATING SHEETS OR PANELS ON A FIXED BASE
DE3931833A1 (en) * 1989-09-23 1991-04-04 Hilti Ag FASTENING ELEMENT FOR FASTENING INSULATION PANELS
DE4041819A1 (en) * 1990-12-24 1992-06-25 Hilti Ag FASTENING ELEMENT FOR INSULATION PANELS
DE9209623U1 (en) * 1992-07-17 1992-10-01 Ejot Adolf Böhl GmbH & Co KG, 5920 Bad Berleburg Connecting pin
DE9210450U1 (en) * 1992-08-05 1992-11-12 ITW Befestigungssysteme GmbH, 5860 Iserlohn Fastener
DE9210449U1 (en) * 1992-08-05 1992-11-12 ITW Befestigungssysteme GmbH, 5860 Iserlohn Fastening element for insulation material

Also Published As

Publication number Publication date
DE4311144A1 (en) 1994-10-06
DE59403274D1 (en) 1997-08-14
EP0620335A1 (en) 1994-10-19
ATE155194T1 (en) 1997-07-15

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