FR3042247A1 - CROISILLON FOR THE PREPARATION OF METALLIC NETS IN STEEL CABLES - Google Patents

Abstract

Device enabling the manufacture of metal nets made of steel cables. It consists of two identical half-braces each having two nipples with a cylindrical groove and also two holes. Each half-cross having two linear grooves and perpendicular to each other to receive the steel cables. Each half-cross having a circular groove in which is housed a spring ring, which spring ring will snap the cylindrical nipples through their cylindrical grooves. They will make the whole together in which will be trapped the two perpendicular steel cables thus constituting a mesh of the metal net.

Description

The present invention relates to braces allowing the crossing of steel cables to thus form meshes in the constitution of nets in steel cables.

The existing devices consist either of cable clamps requiring a long screwing time or two half metal shells whose assembly is both long and tedious and requires a hydraulic clamp for crimping, time-consuming and expensive operation in machinery.

The device according to the invention overcomes these disadvantages. It comprises in fact according to a first characteristic of two absolutely identical half-parts from which a single stock of parts. Each half-piece called half-cross comprises a seat or base with two cylindrical pins each having a groove which will serve to receive a locking spring ring. This seat or base also having perpendicular to the nipples, two holes of appropriate diameter to receive the nipples of the second half-piece or half-cross. Between the axis of alignment of the nipples and that of the two holes, there will be two grooves or cavities perpendicular to each other, to receive two cables that will cross at an angle of 90 °. The seat or base will comprise a circular groove for receiving a spring ring consisting of a circular round wire generally found in industry.

The diameter of this groove will be slightly greater than that of the spring ring and will penetrate with an advance such that it will coincide with the bottom of the throat of the nipples.

So the operation will be simple. On one of these half-crosses two flat steel cables will be laid perpendicularly to each other and then a second half-cross which, placed on it but perpendicular to the first, so that the nipples of the first half-cross can penetrate into the two holes second and vice versa. A chamfer on the ends of the nipples will allow their entry in an easy way. A chamfer also on the base of the half-cross will be provided to allow more easily the entry of the spring ring.

In order to position the cables, two linear grooves placed above the base perpendicular to each other, may be either half-round or half-square. The height or depth of these linear grooves and perpendicular to each other, will be appropriate to the diameter of the cables. In this way, the two cables will be slightly pressed at the time of assembly so as to have a good behavior. The operation is thus simplified, having on the base of the half-cross below position two perpendicular cables between them and place the second half-cross, it will suffice to give a slight blow of hammer so that the two nipples of the half - Lower cross and the two pins of the upper half-cross penetrate each into the appropriate holes for this purpose. Once penetrated, the two times two nipples or the four nipples push the spring ring that will self-lock in the appropriate grooves nipples.

Once blocked, the two half-braces will keep the steel cables perpendicular to each other and tight against each other so they will form the knot of a mesh of net.

A net mesh has four quarters of a knot so for a mesh of this fact a single knot. There will be as many knots as there are meshes.

The accompanying drawings illustrate the invention.

Figure 1/4 shows a perspective view the principle of two half-braces ready to insert two cables perpendicular to each other by 90 °.

Figure 2/4 shows in section two half-braces tightening two cables perpendicular to each other by 90 °.

Figure 3/4 shows a top view of a single half-cross.

FIG. 4/4 shows a view from above of a spring ring constituted by a circular wire with an opening and a section of wire of this spring ring.

With reference to these drawings, the device comprises a half-cross (1) on its base are located two cylindrical pins (2) and two holes (3) placed perpendicular to the two pins (2).

The pins (2) each have a groove (4) and each a chamfer (5) for better penetration into the holes (3) of the second half-cross (6) which will be placed above the cables (7) and (8).

The grooves (4) of the pins will be snapped by a spring ring (9).

In Figure (2) showing the two half-nipples snapped into each other, we find in section the two steel cables (7) and (8) perpendicular to each other. They are sandwiched between the lower half-cross (1) shown in section in the figure and the half-cross (6) said upper.

In this figure (2), we see the nipples (2) of the upper half-cross (6), penetrated and snapped through the spring ring (9). Of course the half-cross (6) is strictly identical to the half-cross (1).

A chamfer (12) will allow the installation of the spring ring (9).

A recess (13) on the bottom of the base of the half-brace (1) will allow the inscription (14) necessary for the use of these braces such as the allowable range of diameters of the cables to be used.

Figure 3 shows a half-cross (1) in top view. We find the two nipples (2) seen from above and the two holes (3) which will receive the nipples of the upper half-cross.

Placed between the pins (2) and the holes (3), are the grooves or linear groove (10) and (11) to receive the perpendicular cables (7) and (8). In this view from above, we can see two straight segmentations (16) and (17) allowing during crimping a better grip of the half-braces for positioning during crimping. Note that only two segmentations (16) and (17) have been made. in order to position the half braces and prevent any other positioning.

Figure (4) shows a spring ring (9) whose inner diameter corresponds to a snap with the grooves (4) of the pins (2). This spring ring (9) consists of a round wire whose figure (4) represents a section (18). This spring ring (9) being cut on a small portion of its periphery (19) to allow it the necessary elasticity.

Claims (7)

1) Device for the production of steel wire mesh characterized in that it consists of two identical half braces (1), each of the two half braces having two male nipples (2) and two holes (3) located on a perpendicular axis between them so that the two half-braces (1) can fit into one another and form a shell capable of trapping two steel cables (7 and 8) perpendicular to each other. 2) Device according to claim 1, characterized in that the two half-braces (1 and 6) will each have two linear grooves, perpendicular to each other (10 and 11) for receiving the two steel cables (7 and 8). ). 3) Device according to one of the preceding claims, wherein the two half-braces (1 and 6) will each have a circular groove (15) for receiving a circular spring ring (9) whose role will allow the snap of the nipples (2). 4) Device according to claim 3, wherein the two male studs (2) of the braces will have a circular groove for snapping said nipples in the spring ring (9). 5) Device according to claim 3 or 4, wherein the two half-braces (1 and 6) will have a chamfer (12) for easy entry of the spring ring (9). 6) Device according to one of the preceding claims, characterized in that the half-braces will have a circular groove (15) which in its periphery will penetrate inside the holes (3) to snap the pins (2). 7) Device according to one of the preceding claims, characterized in that the half-braces (1 and 6) have two segments (16 and 17) for positioning and easier assembly of the two half-braces.