FI85610C - Nätfäste - Google Patents

Abstract

The present invention relates to a net anchoring means for anchoring of a reinforcing net outside an insulation layer which is secured for instance to a wall by means of a mounting means, for instance a collar sleeve (1; 3). The net anchoring means is introduced through a bore of the collar (3) of the mounting means (1; 3) and is prevented from being retracted in that hooks or nobbies (8) of the anchoring menas (6) engage the bore edge at the inner side of the collar (3). The anchoring means (6) also is formed with a through bore so that plaster can enter said bore thereby preventing the hooks or nobbies (8) from becoming released from the said bore edges.

Description

5 8561 0

Network bracket Nätfäste

When building a new one, but above all when installing additional secretion, it is often the case that it is desired to install a plaster layer on top of a special layer of mineral wool, for example. Such a plaster layer needs to be reinforced and is often made with a net, in which case it must be attached to the wall below. This is preferably done using the same fastening members that were used to hold the insulating layer in place. A particularly suitable fastening member is the so-called fastening element according to Swedish patent application No. 8600388-6. laippahylsy. This closed-15 member has a flange which is fixed to the arm, which in turn is anchored to the wall.

The reinforcing mesh is then fastened with so-called mesh fasteners to holes divided around the edge of the flange, so that each net fastener 20 fastens on it one wire of the reinforcing mesh or, in a special case, two intersecting wires.

Various possibilities have been explored with the aim of reducing the number of anchor points. In this context, the invention has been found as one way of achieving the forces required for withdrawal which have not hitherto been possible.

I; The invention relates to a network fastener. According to the invention, the fastener · "· has a through hole so that the plaster can penetrate this hole and then prevent the tips from coming off the edge of the hole. The hole must then have a certain minimum diameter. The conicity must extend at least one third of the length of the hole.

35 A net fastener becomes particularly advantageous if it is dimensioned * so that the body of the pin can be passed through the mesh of the net, while the diameter of the pin head is larger than the size of the mesh. Then the load in the 2 85610 Ί pull-out becomes symmetrical and the pull-out force becomes even greater.

The reinforcement net is fastened by means of a net fastener so that the fastener of the net-5 net fastens the wire of the reinforcement net, i.e. is on top of the wire of the net. The net holder may also be positioned so that the head covers all four threads of the net mesh, in pairs.

The best results are obtained if the net fastener is placed in the middle of the 10th flange plate.

The invention will be explained in the following with reference to six figures.

Figure 1 shows a section of a net fastener according to the invention and Figure 2 is seen from the outside. Fig. 3 shows a variant 15 of the embodiment according to Fig. 1 and Fig. 4 seen from the outside. Fig. 5 shows another variation of the embodiment according to Fig. 1 and Fig. 6 seen from the outside.

Figure 1 shows the flange sleeve arm 1 inserted into the insulating layer 2, 20 which is held in place by the flange sleeve flange 3. Between the arm 1 and the flange 3 there are wings 4, the function of which is to give the flange 3 a certain angular position with respect to the arm 1. Outside the flange 3 there is a reinforcing mesh 5 which is held in place against the flange 3 by the fastener 6 of the net, more specifically its end 7. The net fastener has hooks 8 which fasten the net fastener 6 and thus the reinforcing net 5 against the flange 3 when these hooks are passed through a hole in the flange 3. When the plaster is introduced, it penetrates the hole 9 of the net fastener and settles between the hooks 8. In this case, the hooks cannot be forced together using reasonable forces. In this case, it becomes difficult or impossible to pull out the net fastener 30.

When the diameter of the head 7 is larger than the size of the mesh of the net 5, the head covers: at least two parallel threads, possibly four mesh limes, *: pairs of parallel, threads. The detachable traction then does not pull the net fastener obliquely.

3 85610 1 Figure 2 shows the arrangement according to Figure 1 from the outside. The figure shows the flange 3 of the flange sleeve and the reinforcing net 5 on it. A net fastener has been inserted through the mesh of the net so that its end holds the net 3 in place. The net stacker has a hole 9 through which a rap-5 break can penetrate.

Figure 3 shows an embodiment in which the net stacker 11 provided with tips 10 has a cart-like hole 12 which facilitates the penetration of the plaster.

10

Figure 4 shows the embodiment of Figure 3 from the outside. The figure shows how the end 13 of the net fastener 11 fastens the reinforcing net 5 so that the end 13 extends over all four wires of the mesh of the reinforcing net 5.

15

Fig. 5 shows the same embodiment as in Fig. 1, except that here the net fastener is arranged so that it is on one wire of the reinforcement net 5. The head 7 then extends over at least two wires parallel to the mesh of the second net and crosswise with the 20 wires under the net fastener.

Figure 6 shows the same embodiment as Figure 5, but from the outside.

: ·: In the comparative tests using different net fasteners and the different position of these fasteners in relation to the meshes of the reinforcing mesh: the following forces required for pulling out have been measured: - - Peeling force Tips Fastener for the whole single wire on 30 sides of the net through one mesh V. · 'With a through-hole of 70-95 kp according to claim 1: 110-130 kp: with a through hole 35

Without through hole <30 pcs 50 pcs

Claims (5)

4,85610 The invention relates to a fastener (6) for a net, which is intended to fasten a reinforcing mesh (5) or the like outside the insulating layer (2) 5, which layer is fastened e.g. against a wall with a fastening member, e.g. flange sleeve, the net fastener is then passed through a hole in the flange (3) of the fastening member and the support of the hooks (8, 10) in the fastener against the edge of the hole on the inner side of the flange (3) prevents the net fastener from being pulled out again, the fastener being through a hole (9,12) so that the plaster can penetrate this hole and then prevent the tips (8,10) from detaching from the edge of the hole. A net fastener according to claim 1, characterized in that its through hole (12) is conical, at least at the outer edge and a short distance inwards, preferably at least one third of the length of the fastener. Net fastener according to Claims 1 to 2, characterized in that its body diameter is smaller than the mesh size of the reinforcing mesh (5) to be fastened, while its diameter (7,13) is larger than this mesh size. *: * 4. A net fastener according to claims 1-3, characterized in that it is adapted to co-operate with a central hole in the flange of a flange sleeve with a through hole. Network fastener according to Claims 1 to 4, characterized in. that the width of the ring forming the end of the fastener does not exceed 30 thirds of the mesh size. 5,85610