DE7019038U - EXPANSION DOWELS FOR FASTENING CLADDING ELEMENTS OR COMPONENTS TO A WALL OR THE LIKE. - Google Patents

Description

Artur Fischer Γ ~

7241 Tumlingen, July 22nd, 1975

Z η / RB

Expansion dowel for spacing Cladding elements or components on a wall or the like.

The innovation relates to an expansion dowel for fixing cladding elements or components at a distance A wall or the like. The expandable portion of which can be inserted into a borehole in the wall and for its attachment therein by driving in an expansion element from the free The end of the dowel can be spread apart and the one lengthened, has with its end in the component to be fastened engaging portion on which the to be fastened Component are arranged at a predeterminable distance from the masonry holding stop means. '

There is a spacer known in which a Expansion dowel with an extended section from the side of the component to be fastened facing the Viand is pushed her into a prepared hole in it until the component rests against the stop means. Then the expansion dowel which is in engagement with the component to be fastened is pushed into the borehole

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the wall inserted until the component is in the desired; Distance from the Wc *, π ^ is located. To completion the attachment is only the driving of an expansion element to spread the into the borehole protruding section of the expansion anchor required. However, this type of attachment is only available in such Possible cases in which the expansion anchor differs from that of the |

Side of the component to be fastened facing the wall j

can be introduced.

This type of fastening is not possible, for example. B. when attaching door or window frames, as these are fully assembled and fitted almost immovably in the predetermined ^K points in the Viand. In order to avoid back wedges, which are associated with a great expenditure of time and money, in these cases too, it has also already been proposed to attach projections that recede elastically to the extended section as stop means. In this embodiment, the dowel is pushed through the hole in the component to be fastened, with the projections in the intended. Recesses can recede. Behind the component, the projections spring back into their original position. back and then serve as a support for the component to be fastened. However, this type of fastening is only suitable for those cases in which only small forces act on the component to be fastened. If the forces are too great, it can happen that the projections spread too far and kink.

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The innovation is therefore based on the task of improving and integrating what is known in this regard Prevent kinking of the protrusions.

According to the innovation, this is achieved in that the after the introduction of the extended section in the component to be fastened is connected to the dowel behind this expanded projections are that further Aufspreiezn is prevented.

When attaching the expansion anchor according to the innovation, this is first of all together with the slightly screwed in Fastening screw pushed into the prepared hole in the component to be fastened and in the masonry. The projections together with the means preventing further spreading give way the recesses provided for this purpose. Behind the component to be fastened, the projections spring again back to their initial position, which was limited by funds. Then the expansion dowel is screwed in slightly with the Fastening screw pulled against the component to be fastened, so that it lies firmly against the projections comes. Tying the projections to the dowel sleeve prevents the projections from kinking and thus the resilience of the projections is significantly increased. To anchor the expansion anchor is now the fastening screw is fully screwed in. That The component to be fastened is thus on the one hand between the projections arranged on the extended section

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„, Η λ. ™ Konf of the defect screw on the other hand clamped and "so invariably arranged at the desired distance from the wall. A change in the distance between Component and wall is possible in a simple manner that the expansion plug is in the borehole before being expanded is shifted accordingly.

in an appropriate design of the innovation, the Projections at their respective, protruding, outermost end over one when the projections recede elastic evasive: og must be tied to the dowel. By the Attaching the projections at their extreme end is a " ~ v, "e- ^ distribution of when supporting the to be fastened The force occurring in the object is reached. Since only tensile forces occur in the webs and only compressive forces in the projections, even small dimensions of the same are sufficient to absorb relatively high forces.

The projections are another embodiment of the innovation at least over part of its length connected to the dowel sleeve via an elastic Spritzaaut.

in the drawing are exemplary embodiments of the innovation. shown.

Figure 1 shows the expansion anchor anchored in the masonry, Figure 2 shows a further embodiment of the innovation FIG. 3 shows section A-B indicated in FIG.

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A borehole 2 is arranged in the wall. The component 3 has a bore 4 which is aligned with the borehole in the wall. In the borehole 2 of the wall is an expansion dowel 5 introduced, which here consists of plastic and has an expandable portion 6, over the wall 1 protrudes from an extended section 10 which engages in the component 3 to be fastened. This Component 3 is supported on two opposing projections 16, which protrude at their outermost The end are connected to the dowel sleeve via elastic webs 17. When inserting the expansion anchor 5 through the bore in component 3, projections 16 recede into recesses 14 provided for this purpose. These cutouts are dimensioned in such a way that they are capable of not only the projections but also the elastic webs 17 or 18. The component 3 is between the projections 16 and the head 15 of the fastening screw 12, which is used at the same time to expand the expansion anchor 5 in the borehole 2, clamped.

In FIG. 2, the projections 16 are over part of their length on their surface facing the dowel circumference an elastic spray skin 18 is attached to the dowel sleeve. The recess 14, which when inserting the Expansion anchor 5 through the hole 4 in the to be fastened Component 3 is used to accommodate the projections 16, is in this embodiment from the cavity 11 of the expansion anchor separated by a thin partition 19. This partition 19 is necessary in this embodiment, since the elastic spray skin 18 is attached to it.

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Claims (4)

Ar Tür i'x.v-.rhei: Tiir.lingcn July 22, 1975 Zn / RE M 1194 claims for protection 1. Expansion dowel for spacing fastening of cladding elements Or components on a wall or the like. The expandable portion of which can be inserted into a borehole in the wall and for its attachment therein can be expanded from the free end of the dowel by driving in an expansion element is and the one extended, engaging with its end in the component to be fastened Has portion on which the component to be fastened at a predeterminable distance to Masonry-retaining, elastically receding projections are arranged, characterized in that that after the insertion of the extended section (10) into the component to be fastened (3) behind this spread projections (16) are connected to the dowel (5) that a further spreading is prevented. 2. Expansion dowel according to claim 1, characterized in that the projections (16) on their respective protruding, outermost end via a web (17) on the dowel, which elastically yields when the projections recede (5) are connected. 7019038 12/04/75 3. Expansion anchor according to claim 1, characterized oe}: onnze.i clmol, that the projections (16) at least over part of their length over an elastic spray skin (18) are tied to the dowel (5). 4. Expansion dowel according to claim 1, characterized in that the dowel sleeve with the projections (16) au: nenrcenden recesses (14) is provided. tF- 7019038 12/04/75