DE102008058512A1 - Insulation board attaching method for use in underground, involves moving retaining plate to end position with pressing of insulation boards relative to dowel during rotary motion of fastening unit, where movement of plate is limited - Google Patents

Abstract

The method involves loading a retaining plate (5) and a fastening unit (23) i.e. screw, with a rotary motion by using a mounting tool (11) e.g. turning tool. A dowel (9) is positioned in an underground (3) in a torque-proof manner, and the retaining plate is moved relative to the dowel till to a torque-proof connection with the dowel. The retaining plate is moved to an end position with a pressing of insulation boards (2) relative to the dowel during the rotary motion of the fastening unit, where the movement of the retaining plate is limited. An independent claim is also included for a fixing system for attaching an insulation board in an underground.

Description

The The invention relates to a method and a fastening system for Attaching insulation boards or the like insulating material to a substrate, the fastening system being a sleeve-like, formed as a cutting spiral holding plate, the rotationally fixed Attaching a mounting tool at the top with a rotary driving internal polygon is provided, and a guided through the retaining plate, An anchored in the ground, head also for non-rotatable Attachment of the mounting tool receiving trained fastener Has dowels. Moreover, the invention relates one suitable for the method and the fastening system Dowels and a holding plate with cutting helix.

By the EP 0 811 773 B1 a fastening system has become known that a fastening element having on the one hand a helical surface-shaped insulating thread, formed around a cylindrical threaded core of an axial through-hole, and on the other hand a rotatably and axially fixed thereto, anchored in the ground screw thread has. After drilling through the insulation board up to and including the substrate, the fastener is inserted and cuts when Drehbeaufschlagung in the insulating or insulating material. The threaded core of the fastener protrudes from a side facing the substrate from the insulation board, wherein the protruding projection is adjustable by turning the fastener.

apart that here a distant attachment with distance of the insulation board to be reached from the ground, are for fixing the insulation board several steps required. Because after cutting of the fastener in the insulation board is by the Axial hole of the fastener inserted a screw through and in a the drill hole of the substrate used dowels screwed in and thereby anchored or as in the case of a wood screw thread set directly in the underground or -bau.

Of the Invention is based on the object, a method and a fastening system of the type mentioned above and a suitable dowel and to provide a holding plate with cutting helix that allow that a prefabricated unit can be mounted variably and in particular immediately when mounting the unit a fixed Pressing the insulation or insulation panels to the Underground is possible.

These The object is achieved by a method according to the invention solved that the assembly tool with simultaneous rotary motion The thereby cutting with the cutting spiral in the insulation board Holding plate and thereby the dowel spreading fastener acted upon, on the one hand, the splayed dowel rotatably anchored in the ground and on the other hand the holding plate up to a rotationally fixed connection with the dowel relative to the dowel is moved and in the sequence with continued rotation the fastener of the retaining plate with compression of the insulating or Insulating material relative to the fixed dowel in a End position is moved.

By doing The holding plate according to the invention thus initially around the dowel, which depends on the particular substrate a dowel shaft with adapted length and expansion zone can be rotatable, the cutting helix can in the insulation material penetrate, accompanied by the fastener, preference, as a screw, the dowel spreads and firmly into the ground anchored. After that, the holding plate shifts or telescopes with continuous loading of the fastener by the Assembly tool, z. B. a turning tool such as a screwdriver, relative to fixed dowel down and squeezes the Insulating material to the substrate. In this displacement or telescoping movement namely, the holding plate is prevented from doing so, around the dowel to rotate.

The free end of the previously to accommodate the unit down to the ground prepared bore hole in the insulating material above the in its final position shifted holding plate, wherein the displacement is preferably limited, can be through a Abdeckstopfen close.

In a fastening system for solving the problem underlying the invention, the retaining plate is formed according to the invention in its sleeve part below the rotary driving internal polygon with a Teleskopierbereich which receives a limited linearly displaceably a head of the anchor, the head of the anchor an upper cylinder portion and a thereto downwardly adjoining outer polygon, which is associated with a complementarily formed at the end of Teleskopierbereichs in the sleeve part, lower inner polygon, and wherein the linear displacement begins as soon as the attached assembly tool rotated fastener has moved the retaining plate relative to the dowel and the lower polygon socket of the sleeve part pick up the external polygon of the dowel. The cylinder section here ensures that the holding plate first rotate about the dowel and this can be spread by the fastener. The following movement for linear displacement in the telescoping area with compression of the insulating material by the previously einschneidend introduced holding plate can then be achieved by that the outer polygon of the dowel head is brought to form engagement with the front or lower inner polygon of the sleeve part of the retaining plate.

A advantageous embodiment of the invention provides that the cylinder section above of a ring collar and below of a circumferential, bead-like Rest cam is limited. The prefabricated fastening system unit, consisting of the retaining plate and the dowel learns thus their cohesion, since the sleeve part with his lower or front inner polygon between the ring collar and the locking cam concentric with the cylinder portion of the dowel head is positioned. The locking cam can be here in form a simple way in such a way that, while ensuring cohesion, however, at the onset of the displacement or telescoping movement of the holding plate can be overcome by this.

The draws in this way with cohesion prefabricated unit further characterized by the fact that the cylinder portion and with a spreading zone formed Dübelschaft the anchor have a same diameter, which is smaller than the dimension of the exterior polygon is.

One Proposal of the invention provides that in the sleeve part of the Holding plate above the telescopic area an annular bearing surface is trained. It can be a washer Provide for the head of the fastener, the same time a stop limit for the displacement or Teleskopierweg provides.

to Implementation of the method and for the fastening system is advantageously a dowel, from above down, d. H. seen in the installation direction with a limited cylinder section, an outer polygon and a dowel shaft with Spreading zone is formed.

One for the method and the fastening system more advantageous Holding plate with cutting helix is inventively characterized characterized in that it has a sleeve part with a stepped Through hole has, the top with a first polygon and at the lower end with a second inner polygon and an intermediate Cylinder space provided for this polygonal sections is formed, whose diameter is smaller than the clear cross-section of the upper, first inner polygon and larger than the light Cross-section of the lower, second inner polygon is.

Further Details and features of the invention will become apparent from the claims and the following description of one shown in the drawings Embodiment of the invention. Show it:

1 as a detail, a fastening system in a partial longitudinal section and including in the plan view of a retaining plate with cutting helix;

2 as a detail of a fastening system in a longitudinal view of a dowel with two cross-sections through the dowel head, once along the line AA and the other along the line BB;

3 in a partially sectioned longitudinal view of the prefabricated fastening system, consisting of the retaining plate after 1 and the dowel 2 ;

4 in a partial longitudinal section of the fastening system or the prefabricated unit of 3 after insertion into a hole drilled through an insulating material into the ground; and

5 a representation as in accordance 4 with the other hand, by telescoping or displacement of the retaining plate against the dowel with compression of the insulating material to the ground illustrated mounting position.

One after 3 prefabricated unit ( 1 ) for attaching insulation boards 2 or the like insulating material to a substrate 3 including a cleaning adhesive 4 or the like (cf. 5 ) consists of a retaining plate 5 with a on the outer circumference of its sleeve part 6 trained cutting helix 7 (see. 1 ) and from above through a through hole 8th of the holding plate 5 plugged dowels 9 (see. 2 ), which is a fastener 23 , z. B. a screw receives.

The through hole 8th of the holding plate 5 is stepped and has, seen from top to bottom, a rotary drive inner Mehr- or -Sechskant 10 , in the assembly of the unit 1 one in the 3 and 4 through an arrow 12 indicated assembly tool, such as a rotary tool or screwdriver, engages an annular bearing surface 12 , an adjoining cylinder chamber 13 , the displacement path or telescope area 14 ready, and a final, lower or second inner polygon 15 ,

The dowel 9 (see. 2 ), also from top to bottom, ie seen in the direction of installation, a dowel head 16 and one with a spreading zone 17 provided anchor shaft 18 on, with the dowel head 16 between a ring collar 19 and a darun ter arranged bead-like locking cam 20 a cylinder section 21 and following the locking cam 20 an external hexagon 22 having.

The dowel 9 is through the cylinder section 21 of the dowel head 16 enclosing lower polygon socket 15 of the sleeve part 6 between the ring collar 19 and the locking cam 20 in the holding plate 5 positioned. The head 24 of the fastener 23 lies on one of the annular bearing surface 12 of the sleeve part 6 supported washer 25 on.

The 4 shows the already in a previously through the insulation board 2 into the underground 3 pre-drilled hole 26 plugged unit 1 , By jointly screwing one hand around the dowel 9 rotating holding plate and on the other hand the fastener 23 has the cutting coil 7 in the insulation board 2 cut in and the fastener 23 the expansion zone 17 of the dowel shaft 18 expanded and the dowel 9 anchored in the underground. Upon further rotation of the fastener 23 in the stuck dowel 9 slides the holding plate 5 with the lower polygon socket 15 his sleeve part 6 over the locking cam 20 of the dowel head 16 down, leaving the lower inner polygon 15 of the holding plate 5 in the form of engagement with the external polygon 22 of the dowel 19 arrives. The holding plate 5 Thus, it can no longer rotate and shifts or telescopes in the cylinder space 13 defined telescope area 14 down, with the insulation board 2 pressed and pressed against the ground, as in 5 through the material compression 27 indicated. The above with pressing the insulating material 2 into its final position relative to the dowel 9 pushed down holding plate 5 remaining hole can be flush with the insulation board 2 extending Abdeckstopfen 28 be closed.

1

unit

2

insulating board

3

underground

4

plaster adhesive

5

retaining plate

6

sleeve part

7

cutting helix

8th

Through Hole (of the holding plate)

9

dowel

10

Rotational drive-internal polygon (Hexagonal)

11

Arrow / mounting tool (Turning tool, screwdriver)

12

annular bearing surface

13

cylinder space

14

Displacement / telescoping section

15

lower Inner polygon (hexagon)

16

dowel head

17

expansion zone

18

dowel shaft

19

gorget

20

locking cam

21

cylinder section

22

External polygon (Hexagonal)

23

fastener (Screw)

24

Head (of the fastener 23 )

25

washer

26

bore hole

27

pressing

28

Cover plug

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 0811773 B1 [0002]

Claims (8)

Method for attaching insulation boards or the like insulating means to a substrate with a fastening system comprising a sleeve-like, designed as a cutting spiral retaining plate, which is provided for rotationally fixed attachment of an assembly tool above with a rotary drive inner polygon, and a guided through the retaining plate, a in the ground anchored, the head side also for non-rotatable attachment of the mounting tool formed fastening means receiving dowel comprises, characterized in that the mounting tool ( 11 ) with simultaneous rotational movement while the cutting helix ( 7 ) in the insulation board ( 2 ) incision retaining plate ( 5 ) and the dowel ( 9 ) spreading fasteners ( 23 ) acted upon, on the one hand the splayed dowel ( 9 ) rotatably in the underground ( 3 ) and on the other hand the retaining plate ( 5 ) to a non-rotatable connection with the dowel ( 9 ) relative to the dowel ( 9 ) is moved and subsequently with continued rotational movement of the fastener ( 23 ) the holding plate ( 5 ) with compression of the insulating or insulating material ( 2 ) relative to the fixed dowel ( 9 ) is moved to an end position. Method according to claim 1, characterized in that the displacement of the holding plate ( 5 ) is limited. Fastening system for attaching insulation boards or the like insulating means to a substrate, comprising a sleeve-like, designed as a cutting spiral retaining plate, which is provided for rotationally fixed attachment of a mounting tool above with a rotary drive inner polygon, and a guided through the retaining plate, one anchored in the ground, head-side Also for the rotationally fixed attachment of the mounting tool trained fastener receiving dowel, in particular for performing the method according to claim 1, characterized in that the retaining plate ( 5 ) in its sleeve part ( 6 ) below the rotary driving internal polygon ( 10 ) with a telescoping area ( 14 ) is formed, the one head ( 16 ) of the dowel ( 9 ) limited linearly displaceable, the head ( 16 ) of the dowel ( 9 ) an upper cylinder portion ( 21 ) and a downwardly adjoining outer polygon ( 22 ), one at the end of the Teleskopierbereichs ( 14 ) in the sleeve part ( 6 ) complementarily formed, lower inner polygon ( 15 ) is assigned, wherein the linear displacement begins as soon as that of the attached assembly tool ( 11 ) turned fasteners ( 23 ) the holding plate ( 5 ) relative to the dowel ( 9 ) and the lower inner polygon ( 15 ) of the sleeve part ( 6 ) the outer polygon ( 22 ) of the dowel ( 9 ). Fastening system according to claim 3, characterized in that the cylinder section ( 21 ) at the top of a ring collar ( 19 ) and at the bottom of a circumferential, bead-like locking cam ( 20 ) is limited. Fastening system according to claim 3 or 4, characterized in that the cylinder portion ( 21 ) and with a spreading zone ( 17 ) trained dowel shank ( 18 ) of the dowel ( 9 ) have a same diameter, which is smaller than the dimension of the outer polygon ( 22 ). Fastening system according to one of claims 3 to 5, characterized in that in the sleeve part ( 6 ) of the holding plate ( 5 ) above the telescoping area ( 14 ) a ring-like bearing surface ( 12 ) is trained. Dowel, in particular for use in a method according to claim 1 and / or a fastening system according to claim 3, characterized in that it seen from top to bottom with a limited cylinder portion ( 21 ), an external polygon ( 22 ) and a dowel shaft ( 18 ) with expansion zone ( 17 ) is trained. Holding plate with cutting helix, in particular for use in a method according to claim 1 and / or a fastening system according to claim 3, characterized in that it comprises a sleeve part ( 6 ) with a stepped through-bore ( 8th ), which at the top with a first inner polygon ( 10 ) and at the lower end with a second inner polygon ( 15 ) and a cylinder space provided between these polygonal sections ( 13 ) is formed, whose diameter is smaller than the clear cross section of the upper, first inner polygon ( 10 ) and larger than the clear cross section of the lower, second inner polygon ( 15 ).