EP2666919B1 - Method and mounting system for attaching insulation panels to a support surface - Google Patents

Description

The invention relates to a method and a fastening system for attaching insulation boards or the like insulating material to a substrate according to the preamble of claim 1 and the preamble of claim 3.

Such a method and fastening system is from the document DE 10 2008 010 606 A1 known.

Such a fastening system is also by the EP 2 068 007 B1 known.

In this fastening system for stationary attachment of insulation boards is provided that the assembly tool with simultaneous rotational movement thereby acting on the cutting helix in the insulation board retaining plate and while the dowel spreading fastener acts, on the one hand, the dowel spread and thus rotatably anchored in the ground and on the other hand, the holding plate is displaced relative to the dowel up to a rotationally fixed connection with the dowel, wherein the holding plate also can not rotate when reaching the rotationally fixed connection and in the Sequence with continued rotational movement of the fastener with telescopic mobility and thereby displaced relative to the fixed dowel in an end position with compression of the insulating or insulating material.

This compression of the insulating or insulating material is not desirable for insulation boards with different structural strength.

As insulation come in the insulation boards with different structural strength, for example, plates made of mineral wool, wood fiber boards or in particular also Holzfaserkombinationsdämmplatten used.

In the Holzfaserkombinationsdämmplatten the first, outer layer of a relatively hard fiber layer and the second lower, the ground-facing layer of a very soft fiber layer. Such insulation boards are commonly available in the trade with thicknesses of 80 mm to 280 mm in thickness increments of 20 mm available, but insulation boards can also have an even greater material thickness.

In a 280 mm thick insulation board, the first, outer hard layer has a thickness of about 30 to 50 mm. The larger thickness range of the insulating board, namely the lower, second fiber layer, therefore, consists of contrast very soft material.

During assembly such Holzfaserkombinationsdämmplatten must not be compressed or pressed by the fastener in the lower, soft fiber layer, since then the desired and desired insulation thickness is no longer available.

In addition, it must be ensured that a fastening system securely secures the insulation panels against wind suction forces as well as against wind pressure forces on the substrate without shifts occurring.

The invention is therefore an object of the invention to provide a method and a fastening system of the type mentioned, on the one hand allows easy, easy installation of a Holzfaserkombinationsdämmplatte and on the other hand is inexpensive to produce.

This object is achieved with a method according to the invention in that in an insulating plate with an outer, harder material layer and an inner, softer fiber layer in a first step, a hole in the measure of the soul of the sleeve-like holding element and having the same outer diameter, connected to the holding element Tube piece is introduced into the outer, harder material layer, then in a second step, the holding element connected to the pipe piece is inserted so far into the pre-drilled hole until the front in the screwing, free threaded end of the spiral thread on the outer, harder material layer comes to rest, and in a third step, the holding element is screwed by means of the mounting tool in the outer, harder material layer until a formed on the holding element top plate rests on the outer, harder material layer, wherein the pipe piece to bear against the Unt reason is brought.

The top plate represents a screw-in and the pipe section is a depth stop limit, but the top plate can nevertheless still so far into the outer, harder material layer can be introduced so that it is flush with the surface of the wood fiber combination insulation board. In this case, the head plate screwed into the outer, harder material layer assumes the function of a cover disc which would otherwise close the fastening system to the outside, which consequently is no longer necessary.

In the thus preassembled parts of the fastening system, a fastener in the form of a self-tapping wood screw is now inserted through a screwing complementary to the screw head rotary tool as a mounting tool to the ground until the screw head, preferably a countersunk, arrives at the intended investment in the sleeve-like support member.

When fixing the wood fiber combination insulation board to a masonry-like substrate, a hole corresponding to the diameter of a dowel is first drilled through the outer, harder material layer of the hollow fiber combination insulation board and into the masonry, as otherwise previously described assembly steps.

Subsequently, the fastening screw is inserted together with the anchor through the retaining element and the coupled pipe section through into the pre-drilled in the masonry-like underground hole.

Finally, the fastening screw is screwed by means of the turning tool for Mauenwerkartigeh underground until the countersunk head of the fastening screw for complementary trained system in the sleeve-like holding element passes and thus the fixing screw spreads the dowel and anchored firmly in the masonry-like ground.

No matter whether mounted with or without a dowel, this supports a much larger diameter than the fixing screw and the dowel pipe piece in any case against the ground, wood or masonry, from and prevents unwanted compression of the inner, softer fiber layer of the wood fiber combination insulation panel. An attachment system according to claim 3 for solving the problem underlying the invention is provided.

The coupled pipe piece prevents compression of the inner, softer layer of the insulation board and the large diameter head plate favors it to counteract wind suction can, which thus contributes to the strength. In addition, the support surface is improved or increased.

If the cutting helical spiral thread is advantageously formed without connection to the top plate, ie only at a distance below attaching, on the one hand the risk of tearing is reduced and on the other hand, when plastering the insulation board, the plaster between the top plate and the Spiralgewindebeginn arrive.

If the substrate is a masonry, the fastening system can be extended by a dowel expandable by a fastening screw, which fixes the fastening system and the wood fiber combination insulation board to the masonry.

The retaining element, the outer threads or spirals according to the invention from top to bottom, i. seen in the screwing conically tapered, regardless of the thickness of the wood fiber combination insulation board to be fastened always has the same length, while the pipe section is designed variable in length according to the respective Dämmmaterialdicke. This allows any number of different thicknesses of insulating material to be processed without the need for always adapted holding elements, which can be used for each application in the same length and training. The adaptation to the respective Dämmmaterialdicke done by the pipe sections, advantageously available as rod material tubes, especially plastic pipes that can be brought in a simple manner by cutting to the desired length. The sleeve-like holding elements can be produced in a simple manner from plastic by injection molding.

It is further provided according to the invention that the sleeve-like holding element is seen from the top plate in Einschraub- or mounting direction formed multi-level and in a first area the polygon socket for receiving the mounting tool, in a second area a receiving seat for a screw head of the fastener and end the coupling element having. After joining the two fasteners, ie after the coupling of the pipe section to the sleeve-like holding element, including the coupling element of the holding element, for example as a square or hexagon and the pipe section complementary thereto with an internal square or Hexagonal receptacle is formed corresponds to the total length of the desired thickness of the insulation board.

The thus preassembled fastening unit is inserted so far with the pipe section in the pre-drilled in the outer, harder material layer of Holzfaserkombinationsdämmplatte hole until the front end of the spiral thread system on the outer, harder material layer finds, simultaneously with the pipe section penetrates the inner, softer fiber layer the wood fiber combination insulation board.

Subsequently, the retaining element is introduced via its spiral thread into the outer, harder material layer by means of the assembly tool or rotary tool which engages in the hexagon recess of the retaining plate until its top plate rests against the outer, harder material layer and the pipe section on the wooden base.

Finally, the self-tapping fastening screw is passed through the sleeve-like holding element and the pipe section and screwed into the wooden base until the trained example as a countersunk screw head system in the complementarily shaped recording of the holding element finds. The holding element with the pipe section is thus screwed firmly against the wood surface.

When the Holzfaserkombinationsdämmplatte is to be mounted using a dowel on a masonry-like surface, the dowel immersed after insertion into the central passage of the sleeve-like support member and the pipe section in a pre-drilled in the masonry-like underground hole and is spread by screwing the mounting screw.

After the final assembly of the Holzfaserkombinationsdämmplatte on the ground, the outer top plate of the holding element can be closed with a plugged into the core diameter or inner polygon Abdeckstopfen.

Fig. 1a

als Einzelheit eines mehrteiligen Befestigungssystems ein hülsenartiges Halteelement mit oben einer Kopfplatte und unten einem Kupplungsmittel sowie dazwischen liegend einem äußeren Spiralgewinde;

Fig. 1b

das hülsenartige Halteelement gemäß Fig. 1 a in der Draufsicht dargestellt;

Fig. 2

als Einzelheit des mehrteiligen Befestigungssystems ein an das hülsenartige Halteelement gemäß den Fig. der Fig. 1 a und 1b zu koppelndes Rohrstück;

Fig. 3

in einer Gesamtansicht eine selbstschneidende Befestigungsschraube mit im Schraubenkopf ausgebildeter Drehwerkzeugaufnehme;

Fig. 4

in einer Gesamtansicht das vorgefertigte Befestigungssystem, bestehend aus dem hülsenartigen Halteelement gemäß den Fig. 1a und 1b sowie dem Rohrstück gemäß Fig. 2;

Fig. 5

einen Verschlussstopfen;

Fig. 6

in einem Teillängsschnitt eine mit den Bauteilen der Fig. 4 mittels der Befestigungsschraube gemäß Fig. 3 auf einem Holzuntergrund montierte Holzfaserkombinationsdämmplatte; und

Fig. 7

in einem Teillängsschnitt eine mit den Bauteilen der Fig. 4 mittels einer verdübelten Befestigungsschraube auf einem mauerwerkartigen Untergrund montierte Holzfaserkombinationsdämmplatte.

Further details and features of the invention will become apparent from the claims and the following description of an embodiment of the invention shown in the drawings. Show it:

Fig. 1a

as a detail of a multi-part fastening system, a sleeve-like holding element with a top plate top and bottom coupling means and intervening an external spiral thread;

Fig. 1b

the sleeve-like holding element according to Fig. 1 a is shown in plan view;

Fig. 2

as a detail of the multi-part fastening system to the sleeve-like holding element according to the Fig. The Fig. 1 a and 1b to be coupled pipe section;

Fig. 3

in an overall view a self-tapping screw with trained trained in the screw head rotary tool;

Fig. 4

in an overall view of the prefabricated fastening system, consisting of the sleeve-like holding element according to the Fig. 1a and 1b and the pipe section according to Fig. 2 ;

Fig. 5

a stopper;

Fig. 6

in a partial longitudinal section one with the components of Fig. 4 by means of the fastening screw according to Fig. 3 wood fiber composite insulation board mounted on a wooden background; and

Fig. 7

in a partial longitudinal section one with the components of Fig. 4 by means of a dowelled fastening screw on a masonry-like surface mounted Holzfaserkombinationsdämmplatte.

One after Fig. 6 prefabricated, multipart fastening system 1 for attaching a wood fiber combination insulation board 2, which has an outer, harder material layer 3 and an inner, softer fiber layer 4, on a wooden substrate 5, consists of a sleeve-like support member 6 with a top plate 7, a distance therefrom on the outer periphery its sleeve part 8 formed spiral thread 9, a coupled at the lower end of the support member 6 pipe section 10 and from above through the support member 6 and the pipe section 10 inserted, screwed into the wooden substrate 5, seibstschneidenden fastening screw 11th

For a rotationally secure coupling of the pipe section 10 to the sleeve-like holding element 6, this has an outer polygonal coupling piece 12 which engages in an inner polygon socket 13 formed inside the pipe section 10 (cf. Fig. 1a, b and 2 ).

Furthermore, the sleeve-like holding element 6, starting from its head plate 7, formed in the interior with a hexagon socket 14 for rotary tool holder (see Fig. 1 b ).

At the lower end of the sleeve-like holding element 6 is provided internally with a conical receiving seat 15 for a countersunk head 16 of the self-tapping screw 11. The countersunk head 16 of the fastening screw 11 has likewise a rotary tool holder 17, for example designed as a cross slot (cf. Fig. 1a and 3 ).

With the multi-part fastening system 1 described above, the wood fiber combination insulation panel 2 is attached to the wooden substrate 5 as explained in more detail below.

First, a hole 18 in the measure of the core diameter or the core 19 of the sleeve-like holding element 6 or its sleeve part 8 and the coupled pipe section 10 is drilled in the outer, harder material layer 3.

Subsequently, the coupled with the pipe section 10 holding member 6 is inserted so far into the pre-drilled hole 18 until the front in the screwing threaded end 20 of the head plate 7 downwardly conically tapered spiral thread 9 comes to rest on the outer, harder material layer 3.

Subsequently, the sleeve-like holding element 6 is screwed by its spiral thread 9 in the outer, harder material layer 3 by inserting a non-illustrated assembly or rotary tool in the hexagon socket or the polygonal bushing 14 until the top plate 7 on the outer, harder material layer to the plant comes. Along with this, the pipe section 10 has pushed through the inner, softer fiber layer 4 of the wood fiber combination insulation board 2 and abuts against the wood substrate 5, without causing the inner, softer fiber layer 4 can be compressed.

Finally, the self-tapping screw 11 is inserted through the sleeve-like support member 6 and the pipe section 10 and screwed so far into the wood substrate 5 by a Phillips screwdriver, not shown here, until the countersunk head 16 in the conical seat 15 rests and the sleeve-like support member 6 is screwed to the pipe section 10 firmly against the wooden substrate 5.

In the Fig. 7 shown Holzfaserkombinationsdämmplatte 2 is mounted with the interposition of a plaster layer 21 on a masonry-like substrate 22.

For this purpose, a hole 23 corresponding to the diameter of a dowel 24 is drilled in addition to the hole 18 of the wood fiber combination insulation board 2 in the plaster layer 21 and in the masonry-like substrate 22. Subsequently, the fastening screw 11 is inserted together with the dowel 24 through the already introduced sleeve-like holding element 6 together with pipe section 10, wherein the dowel 24 dips into the pre-drilled hole 23. Subsequently, the provided with a trained in its countersunk head 16 Phillips screw 11 is screwed by means of a Phillips screwdriver or the like assembly tool in the dowel 24, which spreads this anchoring in the masonry-like substrate 22.

After complete screwing in the fastening screw 11, wherein the countersunk head 16 rests in the conical receiving seat 15, the wood fiber combination insulation board 2 is secured against movement between the head plate 7 and the masonry-like substrate 22 or the surface-covering layer 21.

Finally, the bushing 14 of the top plate 7 can be fitted with a cover stopper 25 which can be pushed into its hexagon socket, as in FIG Fig. 5 shown to be closed to the outside, which is so alike in the execution Fig. 6 applies.

LIST OF REFERENCE NUMBERS

1

multi-part fastening system

2

Holzfaserkombinationsdämmplatte / insulation board

3

outer, harder material layer

4

inner, softer fiber layer

5

Wooden background

6

sleeve-like holding element

7

headstock

8th

sleeve part

9

spiral thread

10

pipe section

11

self-tapping fastening screw

12

External polygon-coupler / coupling agent

13

Internal polygon Recording

14

Allen / implementation

15

conical seat

16

Countersunk / screw head

17

Rotary tool holder

18

hole

19

Core diameter / soul

20

front threaded end

21

Surface layer

22

masonry-like background

23

hole

24

dowel

25

Cover plug

Claims (8)

1. A method for mounting insulating boards (2) or similar insulating materials on a substructure (5, 22), with a fastening system comprising a sleeve element (6) that is realized with a top plate (7) and a cutting helix in the form of a spiral screw thread (9), which is integrally formed on the sleeve element, wherein the sleeve element (6) is provided with a multi-sided screw driving socket (14) for attaching an installation tool in a torque-proof fashion on its upper end referred to the installation direction, and a fastening means (11) that extends through the sleeve element (6) and can be anchored in the substructure (5, 22), if applicable, with the aid of an anchor fitting (24), wherein the top of said fastening means is also designed for attaching the installation tool in a torque-proof fashion,
   characterized in
   that an insulating board (2) with a harder outer material layer (3) and a softer inner fiber layer (4) is mounted by initially producing a hole (18) with the dimension of the bore (19) of the sleeve-like retaining element (6) and a tube section (10), which has the same outside diameter and is connected to the retaining element (6), in the harder outer material layer (3) in a first step, subsequently inserting the retaining element (6) connected to the tube section (10) into the pre-drilled hole (18) until the free front end (20) of the spiral screw thread (9) referred to the screw-in direction comes in contact with the harder outer material layer (3) in a second step, and ultimately screwing the retaining element (6) into the harder outer material layer (3) by means of the installation tool until the top plate (7) integrally formed on the retaining element (6) bears on the harder outer material layer (3) in a third step, wherein the tube section (10) is brought in contact with the substructure (5, 22).
2. The method according to claim 1,
   characterized in
   that the wood fiber combination insulating board (2) is mounted on a masonry-like substructure (22) by initially drilling a hole (23) corresponding to the diameter of an anchor fitting (24) used as far as into the masonry (22).
3. A fastening system for mounting insulating boards (2) or similar insulating materials on a substructure (5, 22), comprising a sleeve element (6) that is realized with a top plate (7) and a cutting helix in the form of a spiral screw thread (9), which is integrally formed on the sleeve element, wherein the sleeve element (6) is provided with a multi-sided screw driving socket (14) for attaching an installation tool in a torque-proof fashion on its upper end referred to the installation direction, and a fastening means (11) that extends through the sleeve element (6) and can be anchored in the substructure (5, 22), if applicable, with the aid of an anchor fitting (24), wherein the top of said fastening means is also realized for attaching the installation tool in a torque-proof fashion, particularly for carrying out the method according to claim 1,
   characterized in
   that the fastening system (1) for mounting wood fiber combination insulating boards (2) is composed of multiple parts and comprises the sleeve-like retaining element (6) provided with the top plate (7) on its upper end, wherein the retaining element (6) is on the one hand designed without a connection to the cutting helix in the form of a spiral screw thread (9) and on the other hand realized with a coupling element (12) on its front end referred to the screw-in direction, a tube section (10) that is coupled to the retaining element (6) by means of the coupling element (12) and a fastening means (11) that can be inserted through the sleeve-like retaining element (6) with the coupled tube section (10).
4. The fastening system according to claim 3,
   characterized in
   that the cutting helix in the form of a spiral screw thread (9) is designed without a connection to the top plate (7).
5. The fastening system according to claim 3 or 4,
   characterized in
   that the multi-part fastening system (1) can be supplemented with an anchor fitting (24) that can be expanded by the fastening means (11).
6. The fastening system according to one of claims 3-5,
   characterized in
   that the outer flights of the spiral screw thread (9) are conically tapered from the top toward the bottom.
7. The fastening system according to one of claims 3 to 6,
   characterized in
   that the sleeve-like retaining element (6) is starting at the top plate (7) designed with multiple stages referred to the screw-in or installation direction and features the multi-sided socket (14) for receiving the installation tool in a first region, a receptacle seat (15) for a screw head (16) of the fastening means (11) in a second region and the coupling element (12) on its end.
8. The fastening system according to one of claims 3 to 7,
   characterized in
   that the top plate (7) of the sleeve-like retaining element (6) can be sealed with a plug (25).

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