EP3693519A1 - Fastening system for especially insulating components on a supporting base - Google Patents

Abstract

The invention relates to a fastening system (1) for components made of insulating material on a load-bearing substrate, comprising an insulation holder (2) with a holding plate (3) and a holding plate shaft (4), a dowel (6) and a fastening element (5), which in the dowel (6) can be driven in by spreading the dowel (6), the holding plate (3) and the holding plate shank (4) having a central passage (8) and the fastening element (5) having a threaded shank section ( 9) and at an end trailing in the assembly direction has a head (1) with a polygonal tool holder (11) and wherein the insulation holder (2) and the dowel (6) are made of plastic, characterized in that the fastening element (5) also consists of Made of plastic. The invention further relates to a method for attaching components made of insulating material using a fastening system according to the invention (FIG. 1).

Description

The invention relates to a fastening system for components made of insulating material on a load-bearing substrate, comprising an insulation holder with a holding plate and a holding plate shank, a dowel and a fastening element which can be driven into the dowel by spreading the dowel, the holding plate and the holding plate shank having a central passage and wherein the fastening element has a threaded shaft section at an end leading in the assembly direction and a head having a polygonal tool holder at an end that is trailing in the assembly direction, and the insulation holder and the dowel are made of plastic.

The invention further relates to a method for attaching components made of insulating material to a load-bearing substrate using such a fastening system.

The invention relates in particular to a fastening system for components on a load-bearing substrate, in particular for insulating insulation material during the assembly of thermal insulation composite systems (ETICS), consisting of an insulation material holder which has a holding plate with a sleeve-like holding plate shaft formed in one piece thereon, holding plate and holding plate shaft have a central through-hole, a dowel and a nailable or screwable fastening element which is anchored by spreading the dowel, thereby fixing the insulation holder.

The preassembled fastening system is preferably an insulation holder with a fastening element received in the through-hole, protruding in the assembly direction from the holding plate shaft and an anchor arranged on it - With at least its dowel and a partial length of the fastener in a through z. B. glued-on insulation board inserted into the masonry / the substrate pre-drilled hole and then the fastener has been driven in by hammering or screwing in so far that the retaining plate is flush with the surface of the insulation board. So that the fastening element can be screwed in, its front end, which leads in the assembly direction, is designed as a threaded section and its other, rear end is designed with a thickened head having a polygonal screw-in tool holder. The through hole above the head in the retaining plate can be closed by a plug.

A generic fastening system is for example from EP 1 818 477 A2 known. To assemble a retainer plate sunk into the insulation material, for which purpose it must be driven in rotation, is from the EP 1 818 477 A2 known to use a screw as a fastening element to avoid a separate plug, in which the plug is produced in one piece with the screw by injection-molding the polygonal screw head with plastic. Such encapsulation is, however, always very complex and makes the product more expensive. The molded plastic stopper has a polygonal outer contour with which it engages in an equally polygonal inner contour of a sleeve part of the retaining plate, and is provided with a polygonal screw-in tool holder at its upper or rear end. If for mounting in the tool holder z. B. a drill with a suitable bit is brought into engagement and operated, the torque is transmitted through a positive polygonal connection of the plug and sleeve part on the holding plate so that it rotates together with the screw and expands the dowel in the hole in the masonry. At the same time, the sharp-edged plate rim creates the space to sink the retaining plate into the insulation material. An end shaft of reduced diameter of the sleeve part of the retaining plate dips into a thickened shaft of the dowel, so that the sleeve part can be displaced in the dowel shaft or is telescopic, which allows easy adaptation to different materials or substructures to be attached.

The invention is based on the object of providing a cost-effective fastening system. The invention is also based on the object of providing a fastening system that is equally suitable for screw-in assembly and for knock-in assembly. The invention is finally based on the object of providing a method using the fastening system.

The object is achieved with the features of independent claim 1. The object is also achieved with the features of independent claims 11 and 12. Advantageous further developments of the invention emerge from the subclaims.

According to one aspect of the invention, a fastening system for components made of insulating material on a load-bearing substrate is provided, comprising an insulation holder with a holding plate and a holding plate shaft, further comprising a dowel and a fastening element which can be driven into the dowel by spreading the dowel, the holding plate and the retaining plate shaft have a central passage and the fastening element has a threaded shaft section at an end leading in the assembly direction and a head with a polygonal screw-in tool holder at an end that leads in the assembly direction, and the insulation holder and the dowel are made of plastic, the fastening element also being made of plastic consists.

The invention preferably provides that not only the insulation holder and the dowel, but also the fastening element, are made entirely of plastic and have also been produced by injection molding, the material of the fastening element is a hard, fiber-reinforced (e.g. glass fiber) plastic, the thickened head of the fastening element is formed at the rear with a ring-like end collar and a polygonal screw-in tool holder, with a dowel formed at the rear with a ring-like end collar being pushed onto the fastening element for either drive-in or screw-in assembly is and is inserted into the through hole of the insulation holder until the dowel end collar rests against an insertion limit, which is formed by a smaller diameter of the through hole in the front area of the holder plate shaft as an inner collar. In this pre-assembled end position, the thickened head of the fastening element protrudes from the holding plate.

Since only plastic components are used, no cold or heat bridges can arise. Another advantage of using plastic for the manufacture of the fastening element is that it cannot corrode. In addition, the fastening system according to the invention is lighter than the fastening systems known in the prior art.

In a preferred variant of the fastening system according to the invention it is provided that the fastening element consists of a plastic reinforced with a filler.

The plastic can be selected, for example, from a group of plastics including polyamide 6 (PA6), polyamide 12 (PA12), polypropylene (PP), polyethylene (PE), polyoxymethylene (POM), polybutene (PB), polypbutylene terephthalate (PBT), acrylonitrile Butadiene styrene (ABS) and mixtures thereof.

The filler can be selected from a group of fillers comprising glass fibers, mineral fibers, carbon fibers, natural fibers, glass spheres, mineral spheres or mixtures thereof.

In an expedient variant of the fastening system according to the invention, which is suitable for both knock-in installation and screw-in installation, the leadthrough is designed as a circular through hole.

So that both a knock-in and screw-in installation can be achieved with structurally identical system elements - fastening element, insulation holder and dowel - cam-like locking webs or the like are formed on the ring surface of the underside of the dowel end collar pointing in the direction of installation and projecting over the dowel diameter, which are in the inner collar The through hole of the holder plate shaft are assigned shape-adapted locking depressions. When the fastening element is hammered in, the latching is ineffective. On the other hand, when screwing in, the webs, cams or the like engaging in the depressions prevent the dowel from rotating and only the fastening element with its thickened head is displaced in the cylindrical through-hole until its end collar dips into an annular recess surrounding the through-hole in the holding plate and is flush with it closes the retaining plate, as is also the case with the impact assembly.

The variability during assembly can be further expanded by using the same plastic components to also countersink the retaining plate into the insulation material. The components used here differ from those of the screw-in or knock-in assembly described above only in that the thickened head of the fastening element, like the through hole of the insulation holder, is polygonal, starting from the annular recess of the retaining plate and ending slightly above the inner collar in the retaining plate shaft and there is no need to lock the dowel end collar.

During the knock-in installation, the thickened dowel head is displaced in the polygonal through-hole until its end collar dips into the annular recess of the retaining plate. With screw-in assembly, as soon as the polygonal When the head of the fastening element engages in the polygonal through-hole, the insulation holder, the holder plate shaft of which rotates around the ring-like end collar of the dowel inserted into the holder plate shaft, is driven to rotate until the end collar of the fastening element dips into the ring recess of the holder plate and is flush with it.

If the insulation holder is then also to be sunk into the insulation, the insulation holder with the fastening element that occupies its end position in the ring recess of the holding plate is driven further in rotation, also rotating around the end collar of the dowel, the insulation holder with its holding plate rotating up to worked into the insulation material to a desired depth, which can be limited by a depth stop. At the same time, the holding plate shaft pushes itself far over the dowel, the end collar of which has lifted from the inner collar of the through hole and assumes an end position in the through hole that is remote from the inner collar and predetermined by the countersink depth. The countersunk hole above the retaining plate can be closed with a washer.

Fig. 1

die einzelnen Bauteile eines Befestigungssystems zur Einschlag- oder Einschraubmontage sowie das zur Montage mit den Bauteilen vormontierte Befestigungssystem, und zwar

a)

als Gesamtansicht das vormontierte Befestigungssystem

b)

als Seitenansicht (linkes Bild) und in der Draufsicht einen Dämmstoffhalter

c)

als Gesamtansicht einen Dübel

d)

als Gesamtansicht (linkes Bild) und in der Draufsicht ein nagel- und einschraubbares Befestigungselement;

Fig. 2

in schematischer Darstellung einzelne Schritte bei der Einschlagmontage, und zwar als

a)

das Bohren eines Loches durch an ein Mauerwerk angeklebten Dämmstoff

b)

das Einstecken des vormontierten Befestigungssystems in das gebohrte Loch

c)

das Einschlagen des Befestigungsmittels

d)

das fertig montierte Befestigungssystem, wobei der Halteteller bündig mit der Ober- bzw. Außenfläche der Dämmstoffplatte abschließt;

Fig. 3

in schematischer Darstellung einzelne Schritte bei der Einschraubmontage, und zwar

a)

wie zuvor in Fig. 2 unter a)

b)

das Aufstecken des vormontierten Befestigungssystems auf ein mit einem Tiefenanschlag bestücktes Bohrwerkzeug

c)

das Einführen des auf das Bohrwerkzeug nach b) aufgesteckten Befestigungssystems in das vorgebohrte Loch

d)

das rotierende Eintreiben des Befestigungselementes in dem im Haltetellerschaft bzw. dem Innenkragen in der Durchgangsbohrung verrasteten Dübel

e)

das wie zuvor in Fig. 2 unter d) fertig montierte Befestigungssystem;

Fig. 4

die einzelnen Bauteile eines Befestigungssystems zur Einschlagoder Einschraubmontage mit Versenkung des Dämmstoffhalters in den Dämmstoff sowie das vormontierte Befestigungssystem, und zwar

a)

als Gesamtansicht das vormontierte Befestigungssystem

b)

als Seitenansicht (linkes Bild) und in der Draufsicht einen Dämmstoffhalter

c)

als Gesamtansicht einen Dübel

d)

als Gesamtansicht (linkes Bild) und in der Draufsicht ein Befestigungselement;

Fig. 5

in schematischer Darstellung einzelne Schritte bei der Einschlagmontage des Befestigungssystems nach Fig. 4, und zwar

a)

analog zu Fig. 2 a

b)

analog zu Fig. 2 b

c)

analog zu Fig. 2 c

d)

analog zu Fig. 2 d;

Fig. 6

in schematischer Darstellung einzelne Schritte bei der Einschraubmontage, und zwar

a)

analog zu Fig. 3 a

b)

analog zu Fig. 3c, hier ohne Tiefenanschlag und Bohrwerkzeug

c)

analog zu Fig. 3 d

d)

analog zu Fig. 3 e; und

Fig. 7

in schematischer Darstellung einzelne Schritte bei der Einschraubmontage mit Versenkung des Dämmstoffhalters in den Dämmstoff, und zwar

a)

analog zu Fig. 3 a bzw. 6 a

b)

analog zu Fig. 3b, hier ergänzt durch eine mit dem Versenken des Dämmstoffhalters gleichzeitig einzubringende, das entstehende Senkloch verschließende Rondelle

c)

analog zu Fig. 3 c

d)

analog zu Fig. 3 d

e)

die durch den Tiefenanschlag begrenzte Versenkung des Dämmstoffhalters mit einer das Senkloch verschließender Rondelle

f)

das fertigmontierte Befestigungssystem nach Fig. 4 a.

The invention is explained below with reference to the accompanying drawings using two exemplary embodiments. Show it:

Fig. 1

the individual components of a fastening system for drive-in or screw-in assembly as well as the fastening system pre-assembled for assembly with the components, namely

a)

as an overall view of the pre-assembled fastening system

b)

as a side view (left picture) and in the top view an insulation holder

c)

a dowel as a general view

d)

as a general view (left picture) and in the top view a nailable and screw-in fastening element;

Fig. 2

in a schematic representation of the individual steps involved in the assembly, namely as

a)

drilling a hole through insulation glued to masonry

b)

inserting the pre-assembled fastening system into the drilled hole

c)

driving in the fastener

d)

the fully assembled fastening system, wherein the retaining plate is flush with the upper or outer surface of the insulation board;

Fig. 3

a schematic representation of individual steps in screw-in assembly, namely

a)

as before in Fig. 2 under a)

b)

Attaching the pre-assembled fastening system to a drilling tool equipped with a depth stop

c)

inserting the fastening system attached to the drilling tool according to b) into the pre-drilled hole

d)

the rotating driving of the fastening element into the dowel locked in the through-hole in the holding plate shank or the inner collar

e)

as before in Fig. 2 under d) fully assembled fastening system;

Fig. 4

the individual components of a fastening system for drive-in or screw-in installation with the insulation holder countersunk into the insulation, as well as the preassembled fastening system

a)

as an overall view of the pre-assembled fastening system

b)

as a side view (left picture) and in the top view an insulation holder

c)

a dowel as a general view

d)

as a general view (left picture) and in the plan view of a fastening element;

Fig. 5

in a schematic representation of the individual steps involved in the assembly of the fastening system Fig. 4 , in fact

a)

analogous to Fig. 2 a

b)

analogous to Fig. 2 b

c)

analogous to Fig. 2 c

d)

analogous to Fig. 2 d;

Fig. 6

a schematic representation of individual steps in screw-in assembly, namely

a)

analogous to Fig. 3 a

b)

analogous to Figure 3c , here without depth stop and drilling tool

c)

analogous to Fig. 3 d

d)

analogous to Fig. 3 e; and

Fig. 7

a schematic representation of the individual steps involved in screw-in installation with the insulation holder countersunk into the insulation material, namely

a)

analogous to Fig. 3 a or 6 a

b)

analogous to Figure 3b , here supplemented by a rondelle that closes the countersunk hole that is to be inserted at the same time as the lowering of the insulation holder

c)

analogous to Fig. 3 c

d)

analogous to Fig. 3 d

e)

the countersinking of the insulation holder, limited by the depth stop, with a washer that closes the countersunk hole

f)

the fully assembled fastening system Fig. 4 a.

A fastening system 1 according to a first embodiment of the invention is shown in FIG Figure 1 to which reference is first made below. This fastening system 1 comprises an insulation holder 2 made of thermoplastic material, which was, for example, injection molded, a dowel 6 and a fastening element 5. The insulation holder 2 consists of a holding plate 3 and a holding plate shaft 4 which is formed in one piece with the holding plate 3. The fastening system 1 is, as in FIG Figure 1 a) shown, provided completely pre-assembled. In this configuration, the fastening element 5 penetrates a central or central passage 8 through the holding plate 3 and the holding plate shank 4 as well as part of the length of the dowel 6. The passage 8 through the insulation holder 8 is designed as a graduated circular through hole. On one in the mounting direction (by the arrow in Figure 1a ) illustrated) leading end of the holding plate shaft 4, the passage 8 is tapered and comprises an inner circumferential collar or an inner collar 12.

The fastening element 5 is designed as a fastening screw which has a threaded section 9 at its end leading in the assembly direction, an adjoining thread-free shaft 14 and a thickened head 10 at its end trailing in the assembly direction. The thickened head 10 has a first relatively large diameter, whereas the threaded section 9 and the thread-free shaft 14 have a second, relatively small diameter. The threaded section 9 is provided with a thread, the thread flanks of which are designed so that the fastening element 5 can be driven in as well as screwed in. At the end of the fastening element 1 or the thickened head 10 that is lagging in the assembly direction, an end collar 13 is provided which surrounds a tool holder 11. The tool holder is designed, for example, as a square socket, hexagon socket or Torx holder. Other forms of tool engagement are possible and conceivable.

The fastening element 5 consists entirely of thermoplastic material, ie the thickened head 10 is formed in one piece with the thread-free shaft 14 of the fastening element 5. For example, the fastening element 5 can consist of a thermoplastic material reinforced with glass fiber and have been obtained by injection molding a filled thermoplastic material. For example, the fastening element 5 can consist of a PA6 (polyamide 6) which, for example, comprises up to 50 percent glass fiber filling with short fibers. The thickened head 10 has a diameter which corresponds approximately to the inner diameter of the feedthrough 8 and is shown in FIG Figure 1a ) position shown within the insulation holder 2 relative to this rotatable.

As mentioned above, shows Figure 1 a) the pre-assembled state of the fastening system 1, in which the fastening element 5 completely penetrates the insulation holder 2 and partially penetrates the dowel 6, the thickened head 10 of the fastening element 5 protruding beyond the holding plate 3 of the insulation holder 2. A further driving of the fastening element 5 into the dowel 6 causes the thickened head 10 of the fastening element 5 to dip into the bushing 8 of the insulation holder 2 until the end collar 13 of the thickened head 10 against an annular recess 17 or a circumferential shoulder in the bushing 8, which is formed by a depression in the holding plate 3, is applied. At the same time, the dowel is spread or driven apart in the area of the expansion zone 7, which causes anchoring in the ground when the dowel 6 is countersunk. In the end position of the fastener 5 within the insulation holder 2, the end face or annular surface of the thickened head 10 of the fastening element 5 pointing in the assembly direction rests against a dowel end collar 15. The dowel end collar 15 is formed on the end of the dowel 6 which is lagging in the assembly direction and is provided on its lower annular surface, ie on the surface facing in the assembly direction, with latching webs 16 which, in the end position of the fastening element 5, have appropriately designed, shape-adapted or complementary Latching recesses in the inner collar 12 of the holding plate shaft 4 interact. When the fastening element 5 is hammered in, the anchoring of the locking webs 16 in the locking depressions complementary thereto is ineffective. On the other hand, when the fastening element 5 is screwed in, the latching webs 17 engaging the latching depressions prevent the dowel 6 from rotating with it and only the fastening element 6 with its thickened head 10 from being displaced in the cylindrical passage 8 until its end collar 13 is inserted into the retaining plate 3 provided annular recess 17 is immersed and is flush with the retaining plate 3.

Figure 2 illustrates in a schematic representation the individual steps in the knock-in assembly of the fastening system 1 according to FIG Figure 1 . A hole 24 is drilled through the insulating material 23 and the adhesive 22 into the masonry 21 by means of a drilling tool 20 in a masonry 21 as a stable substrate on which an insulating material 23 has been fixed by means of an adhesive 22. In a next process step ( Figure 2b ) the fastening system 1 according to Figure 1 a) inserted into the hole 24 to such an extent that the surface of the retaining plate 3 facing in the assembly direction rests against the insulating material 23 and holds the insulating material 23 against the substrate or the adhesive 22 and the masonry 21. The fastening element 5 is then hammered in, for example with a hammer 25, until the thickened head 10 of the fastening element 5 is completely immersed in the passage 8 of the insulation holder 2 (Figures 2c) and 2d) ) and its end collar 13 is flush with the retaining plate 3.

Figure 3 illustrates in a schematic manner the individual steps of a screw-in assembly of the fastening system 1. Analogous to that based on FIG Figure 2 As explained in the procedure described, a hole 34 is drilled by means of a drilling tool 30 through the insulating material 33 applied to the masonry 31 by means of adhesive 32. The drilling tool 30 is then provided with a depth limit 35 and a tool (bit). The preassembled fastening system 1 is inserted into the hole 34. Then according to the in Figures 3 c) to 3d) The procedure shown is brought into engagement with the tool of the drilling tool 30 with the tool holder 11 of the fastening element 5. The fastening element 5 is driven to rotate and is driven into the dowel 6 until the holding plate 3 of the insulation holder 2 rests against the insulation 33. The depth limiter 35 prevents the holding plate 3 from being pushed too far into the insulating material 33.

A second variant of the fastening system 1 according to the invention is shown in FIG Figure 4 shown. The embodiment according to Figure 4 corresponds essentially to that according to Figure 1 , however, the insulation holder 42 has a passage 48 with a polygonal cross section over a substantial part of its length and the thickened head 410 of the fastening element 45 has a polygonal outer contour complementary thereto or a polygonal cross section complementary thereto. The inside diameter of the feedthrough 48 is also stepped. At the end of the holding plate shaft 44 of the insulation holder 42 leading in the assembly direction, the passage 48 has a smaller or tapered inner diameter. In this area, the feedthrough 48 is designed as a cylindrical through-hole to enclose the thread-free shaft 414 of the fastening element 45, which is round in cross section. A cylindrical mouth 416 is provided in this area of the through hole 48.

As in the embodiment according to Figure 1 For example, the polygonal thickened head 410 is provided at the end with an end collar 413 which, in the end position, dips into an annular recess 417 of the holding plate 43. The dowel end collar 415 of the dowel 46 can also be analogous to the embodiment according to FIG Figure 1 be provided with locking bars (not shown).

The fastening system 1 according to Figure 4 is intended for both drive-in and screw-in mounting. In addition, the holding plate 43 of the fastening system 1 according to the second exemplary embodiment of the invention can be countersunk in the insulating material 73, as will be described below with reference to FIG Figure 7 will be explained.

First, however, reference is made to Figure 5 that the hinge assembly of the fastening system 1 according to Figure 4a ) (second embodiment) illustrated. In this exemplary embodiment, the method for attaching the components made of insulating material corresponds exactly to that according to FIG Figure 2 so in terms of the Figure 5 to the explanations Figure 2 is referred.

A method for screw-in mounting of the fastening system 1 according to Figure 4a ) is in Figure 6 shown. This procedure also corresponds exactly to that according to Figure 3 , so in this regard to the remarks Figure 3 is referred.

Another variant of the procedure is in Figure 7 shown. As with the procedure according to Figure 3 or according to Figure 6 a hole 74 is first drilled through the insulating material 73, the adhesive 72 into the substrate or into the masonry 71 by means of a drilling tool 70. As in the embodiment according to Figure 3 A depth stop 75 is also used for screw-in installation. Like this in Figure 7 b) is shown, the drilling tool 70 with the tool and a depth stop provided between the tool and the drive 75 equipped. The completely prefabricated fastening system 1 is pushed onto the drilling tool 70 with a washer 76 in between. The fastening system is then inserted into the hole 74 with the drilling tool 70. The fastening element 45 is finally driven to rotate (see Figure 7 d) ). The fastening element 45 is driven into the dowel 46, the expansion zone 47 of which is anchored in the masonry 71. In contrast to the procedure according to Figure 6 However, if the fastening element 45 is screwed in further, the insulating material holder 42, which rotates with the polygonal engagement, digs into the insulating material 73 through a sharp-edged edge on the leading underside of the retaining plate 43 until the depth stop 75 rests flush against the insulating material 73. The depth of the countersinking of the insulation holder 42 is dimensioned such that the washer 76 is also flush with the outer surface of the insulation 73. So that the retaining plate 43 can dig into the insulating material 73, it is provided with openings 418. Such openings 18 are also provided in the holding plate 3 according to the first embodiment. <b> List of reference symbols </b> 1 Fastening system 49 Threaded section 2nd Insulation holder 410 polygonal thickened head 3rd Holding plate 411 Tool holder 4th Holding plate 412 Inner collar 5 Fastener 413 End collar 6 Dowels 414 thread-free shaft 7th Expansion zone 415 Dowel end collar 8th execution 416 cylindrical mouth 9 Threaded section 417 Ring recess 10th thickened head 418 Breakthroughs 11 Tool holder 50.60.70 Drilling tool 12th Inner collar 51.61.71 Masonry 13 End collar 52.62.72 adhesive 14 thread-free shaft 53.54.73 Insulation material 15th Dowel end collar 54.64.74 hole 16 Locking bar 76 Roundels 17th Ring recess 18th Breakthroughs 20th Drilling tool 21st Masonry 22nd adhesive 23 Insulation material 24 hole 25 hammer 30th Drilling tool 31 Masonry 32 adhesive 33 Insulation material 34 hole 35 Depth stop 42 Insulation holder 43 Holding plate 44 Holding plate 45 Fastener 46 Dowels 47 Expansion zone 48 polygonal implementation

Claims (13)

Fastening system (1) for components made of insulating material on a load-bearing substrate, comprising an insulation holder (2; 42) with a holding plate (3; 43) and a holding plate shaft (4; 44), a dowel (6; 46) and a fastening element (5 ; 45), which can be driven into the dowel (6; 46) by spreading the dowel (6; 46), the holding plate (3; 43) and the holding plate shaft having a central passage (8; 48) and the fastening element ( 5; 45) has a threaded shaft section (9:49) at one end leading in the assembly direction and a head (10; 410) having a polygonal tool holder (11; 411) at an end that is trailing in the assembly direction, and the insulation holder (2; 42) and the dowel (6; 46) are made of plastic, characterized in that the fastening element is also made of plastic. Fastening system according to Claim 1, characterized in that the fastening element (5; 45) consists of a plastic reinforced with a filler. Fastening system according to one of claims 1 or 2, characterized in that the plastic is selected from a group of plastics comprising polyamide 6 (PA6), polyamide 12 (PA12), polypropylene (PP), polyethylene (PE), polyoxymethylene (POM), Polybutene (PB), polypbutylene terephthalate (PBT), acrylonitrile butadiene styrene (ABS) and mixtures thereof. Fastening system according to one of Claims 1 or 2, characterized in that the filler is selected from a group comprising Glass fibers, mineral fibers, carbon fibers, natural fibers, glass spheres, mineral spheres or mixtures thereof. Fastening system according to one of Claims 1 to 4, characterized in that the lead-through (8) is designed as a circular through hole. Fastening system according to one of Claims 1 to 5, characterized in that the head (10; 410) of the fastening element is designed as a thickened head (10; 410) which is designed both for screw-in installation and for hammer-in installation. Fastening system according to Claim 6, characterized in that the thickened head (10; 410) of the fastening element (5; 45) is formed with an annular end collar (13; 413) at an end which is lagging in the assembly direction. Fastening system according to one of Claims 5 to 7, characterized in that the dowel (6; 46) has a dowel end collar (15; 415) at an end trailing in the assembly direction, on the underside of which cam-like locking webs (16) or the like are formed, which interact with shape-adapted locking depressions in an inner collar (12) of the implementation (8:48) of the holding plate shaft (4:44). Fastening system according to one of claims 1 to 4 or 6, characterized in that the feedthrough (48) of the insulation holder (42) has a non-circular cross-section and that the thickened head (410) of the fastening element has a complementary outer contour that rotates the insulation holder (42) prevented relative to the fastening element (45). Fastening system according to one of Claims 1 to 4 or 6, characterized in that the passage (48) of the insulation holder (42) and the thickened head (410) of the fastening element (45) are each polygonal. Method for attaching components made of insulating material to a load-bearing substrate using a fastening system according to one of Claims 1 to 10, in which the preassembled fastening system with the fastening element protruding in the assembly direction from the holding plate shaft and the dowel arranged thereon with at least the dowel and a partial length of the fastening element is inserted into a hole pre-drilled at least through the insulation board and preferably into the substrate, and then the fastening element is driven in by hammering in or screwing in at least so far that the retaining plate is flush with the surface of the insulation board. Method for attaching components made of insulating material to a load-bearing substrate using a fastening system according to one of Claims 1 to 4 or 9 or 10, in which the preassembled fastening system with the fastening element protruding in the assembly direction from the holding plate shaft and the dowel with at least the dowel arranged thereon and a partial length of the fastening element is inserted into a hole pre-drilled at least through the insulation board and preferably into the substrate and then the fastening element is driven in by screwing in at least so far that the retaining plate is flush with the surface of the insulation board. Method according to Claim 12, characterized in that the fastening element is driven in by screwing in so far that the retaining plate is sunk by a predetermined amount in the insulation board.

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