Mesh Network

Abstract

A meshwork has a layer forming a mesh, the mesh layer being disposed between parallel tension ribbons which are opposite one another in pairs. The tension ribbons have a thermoplastic bonding layer on the side facing the mesh layer and are connected to one another and to the mesh layer via the bonding layer. The mesh layer takes the form of a plastic net having meshwork webs which are connected to one another in a materially bonded manner and which are stretched and form diamond-shaped meshes, the longitudinal diagonals of which extend transversely to the tension ribbons.

Claims

1. A meshwork comprising: a layer forming a mesh; and first and second layers of tension ribbons provided on opposite sides of the mesh layer, the ribbons of each tension ribbon layer extending in parallel with one another, wherein the tension ribbons have a thermoplastic bonding layer on a side thereof facing the mesh layer and are connected to one another and to the mesh layer via the bonding layer, and wherein the mesh layer is formed from a plastic net having meshwork webs which are connected to one another in a materially bonded manner and which are stretched and form diamond-shaped meshes, longitudinal diagonals of which extend transversely to the tension ribbons.

2. The meshwork according to claim 1, wherein the plastic net is formed from a stretched, extruded plastic net.

3. The meshwork according to claim 1, wherein the plastic net is made of a plastic film stretched in the manner of an expanded mesh.

4. The meshwork according to claim 1, wherein a length of the longitudinal diagonal of the diamond-shaped meshes of the plastic net is greater than a mutual spacing of the tension ribbons.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The subject matter of the invention is shown by way of example in the drawings, wherein:

[0010] FIG. 1 shows a meshwork in accordance with the invention in sections in a partially elevated plan view, and

[0011] FIG. 2 shows the schematic arrangement of the individual layers of the meshwork in a section along the line II-II of FIG. 1 on a larger scale.

DETAILED DESCRIPTION

[0012] The meshwork shown in FIG. 1 comprises a plastic net 1, the stretched meshwork webs 2 of which are connected to each other in a materially bonded manner and form diamond-shaped meshes 3. This comparatively close-meshed plastic net 1 is formed, for example, in the manner of an expanded mesh, from a plastic film which is provided in rows with incisions staggered in a gap in rows relative to one another and which is stretched in the longitudinal direction of the meshwork webs 2 resulting between the incisions, so that after the plastic film has been pulled apart transversely to the incisions a net with diamond-shaped meshes 3 is produced, the shape and size of which are determined by the extent to which the plastic film is pulled apart. Another way of producing a plastic net 1 with diamond meshes 3 is to stretch a standard extruded plastic net.

[0013] The stretched plastic net 1 is held in its mutual position in its respective shape and size of meshes 3 between two cover layers of parallel tension ribbons 4, 5, which extend at a distance from each other, adapted to the given requirements. For this purpose the tension ribbons 4, 5 are composed of at least two layers, namely a carrier layer absorbing tensile forces and a bonding layer of a thermoplastic material on the side of the carrier layer facing the plastic net 1.

[0014] As can be seen from FIG. 1, the arrangement is such that the longitudinal diagonals of the diamond-shaped meshes 2 of the plastic net 1 extend transversely to the tension ribbons 4, 5, wherein the length of the longitudinal diagonals is greater than the mutual spacing of the pairs of tension ribbons 4, 5. This ensures in a simple way that the meshwork webs 2 are held at least once per mesh 3 between the tension ribbons 4, 5 of a pair, which results in good dimensional stability and improved strength properties for the meshwork.

[0015] Since the tension ribbons 4, 5 of the two cover layers, which are opposite one another in pairs, overlap one another, the meshwork webs 2 of the plastic net 1 are held in a displaceable manner between the tension ribbons 4, 5, which are opposite one another, in accordance with FIG. 2, if, during hot pressing of the two cover layers with the plastic net 1 between them, a shear-resistant connection is made between the tension ribbons 4, 5, which lie adjacent one another, and the adjacent meshwork webs 2 of the plastic net 1 by means of a fusible connection or a heat seal.

[0016] After hot pressing, a meshwork is obtained which is largely dimensionally stable, shows only slight residual shrinkage and elongation and can be welded with similar nets, but also with foils and the like.