EP1227206A1 - Articulation device for fencing post - Google Patents

Abstract

The coupling consists of two sections (1, 1'), each with a socket (2, 2') for a fencing or upper extension post. The two sockets have end shoulders (3) and are joined together by brackets (4) with facing plaates having toothed circular surfaces and central holes for a fastening bolt. Once the angle of the upper extension has been set it is fixed by tightening the bolt, which can be of a type to resist tampering.

Description

The invention relates to the technical field of fences obtained by assembling panels, in particular wire mesh on hollow posts, in particular in metal profile.

By "lattice panels" is meant here woven wire panels or welded, metallic or not, with or without a decorative coating and / or protective, this coating being metallic or made of polymer material.

These trellis panels are conventionally square mesh or rectangular and include warp threads parallel to the ground and weft substantially perpendicular to the warp threads.

Examples of such fences can be found in following documents: FR-2.316.414, FR-2.372.296, FR-2.445.152, FR-2.463.246, FR-2.676.488, FR-2.676.487, FR-2.722.820, FR-2.783.545, FR-2.785.933.

When such fences are used to protect areas sensitive such as airports, electrical transformers, military grounds, it has been known for a long time to provide them with extensions.

These extensions are intended in particular to give the fence post a head part inclined at 45 ° in order to increase the difficulty of crossing, such a structure being called flap.

By flap, we will also denote here so-called defense pieces in Y shape fixed on the upper extremities of the fences.

Such parts are sometimes called double inclined flaps.

The flaps conventionally support simple twist mesh or welded, panels, simple brambles or concertina networks (pimples or razor blades).

In most of the flap assemblies known in the prior art, the angle between the extension and the main vertical plane of the fence is fixed.

• BE-A-853 904, CH-A-616 480, CH-A-683 627, DE-A-4 203 267, DE-U-9 106 266, FR-A-2 568 615, FR-A-2 429 309, FR-A-2 676 489,
• brevets américains publiés sous les numéros 1 237 601, 1 401 509, 1 440 852, 1 664 603, 1 668 233, 1 672 247, 1 698 577, 1 743 064, 1 840 278, 1 980 852, 2 161 944, 2 199 518, 2 345 771, 2 351 261, 2 954 212, 3 084 913, 3 698 691, 3 749 368, 3 771 767, 4 065 103, 4 081 177, 4 159 820, 4 408 748, 4 602 764, 4 603 840, 4 730 809, 5 662 213, 6 045 099,
• demandes de brevets anglais publiées sous les numéros 2 247 901, 2 040 338, 1 461 465, 1 323 388,
• demandes de brevets européens EP-A-0 863 280, EP-A-0 172 075.

Reference may be made, for example, to the following documents:

• BE-A-853 904, CH-A-616 480, CH-A-683 627, DE-A-4 203 267, DE-U-9 106 266, FR-A-2 568 615, FR-A-2 429 309, FR-A-2 676 489,
• US patents published under the numbers 1,237,601, 1,401,509, 1,440,852, 1,664,603, 1,668,233, 1,672,247, 1,698,577, 1,743,064, 1,840,278, 1,980,852, 2,161,944, 2,199,518, 2,345,771, 2,351,261, 2,954,212, 3,084,913, 3,698,691, 3,749,368, 3,771,767, 4,065 103, 4,081,177, 4,159,820, 4,408,748, 4,602 764, 4 603 840, 4 730 809, 5 662 213, 6 045 099,
• English patent applications published under the numbers 2 247 901, 2 040 338, 1 461 465, 1 323 388,
• European patent applications EP-A-0 863 280, EP-A-0 172 075.

• une première branche formant attache, fixée à l'extrémité supérieure du poteau et ;
• une deuxième et troisième branches, respectivement orientées vers le haut et vers le bas, et comprenant des moyens de guidage reliés entre eux par une nappe de fils de fer barbelé chacun formé d'une âme portant des ronces.

In order to be able to modify the angle of orientation of the flaps relative to the posts which support them, the document FR-A-2 771 437 describes a fence, in particular for protecting an area housing an electrical installation, this fence comprising posts between which extends a vertical grid, each post comprising an upper end, a Y-shaped defense part called a flap being fixed on this upper end so as to extend towards the outside of the zone to be protected, this defense part comprising :

• a first branch forming an attachment, fixed to the upper end of the post and;
• a second and third branches, respectively oriented upwards and downwards, and comprising guide means connected together by a sheet of barbed wire each formed from a core carrying brambles.

Other devices have been described in the prior art to allow the adjustment of the angle of inclination of the extension relative to the main plane vertical of the fence.

We can refer, for example, to the following documents: US-A-1 703 189, US-A-1 773 519, US-A-3 028 147, NL-A-8 400 616.

The devices known in the prior art do not allow adjustment satisfactory of the angle of the extension relative to the main plane of the fence, either because the angle cannot be adjusted precisely, or because this angle must be chosen from a small number of mounting angles predetermined.

The invention also aims to provide a solution to the problems posed by the installation of flaps and extensions on a fence preexisting.

• les rehausses et bavolets connus dans l'art antérieur peuvent former avec certaines clôtures un ensemble disgracieux ;
• le montage des rehausses et bavolets sur les poteaux de clôture préexistants nécessite de nombreux travaux, par suite du très grand nombre de profilés différents utilisés pour la réalisation des poteaux de clôture.

During this implementation, it is in fact observed that:

• the extensions and flaps known in the prior art can form with some fences an unsightly whole;
• mounting the risers and flaps on the pre-existing fence posts requires a lot of work, due to the very large number of different profiles used to make the fence posts.

The invention relates according to a first aspect to a device of articulation for fence extension, comprising a first part provided with an assembly part to a fence post and a second part provided with an assembly part to a post for raising, the part of assembly of the first part extending in a direction D1, the assembly part of the second part extending in a direction D2, the device comprising means for adjusting the angle between the directions D1, D2 during the assembly of the first and second rooms.

In a first embodiment, the assembly part of the first part includes a profile intended to be housed in the internal space of a hollow fence post, the assembly part being provided with a shoulder intended to come into abutment against the upper free end edge of the post profile.

In a second embodiment, the assembly part of the first part includes a profile intended to be housed around the extreme part top of the fence post, the assembly part being provided with a bottom wall intended to come into abutment against the upper free end edge of the post profile.

According to a variant, the assembly part of the second part includes a profile intended to be housed in the internal space of a hollow riser post, the assembly part being provided with a shoulder intended to come into abutment against the lower free end edge of the post profile.

According to another variant, the assembly part of the second part includes a profile intended to be housed around the extreme part bottom of the riser post, the assembly part being provided with a bottom wall intended to come into abutment against the lower free end edge of the post profile.

The means for adjusting the angle between the directions D1, D2 comprise two toothed annular sectors, each of the first and second part carrying one of these annular sectors arranged in support and opposite when the two parts are assembled.

The first and second parts are assembled together using a means of assembly that is safe with regard to malicious dismantling, such as than a self-breaking nut forming a hinge pin between the two parts.

According to one characteristic, the first and second parts are substantially identical.

The invention relates, according to a second aspect, to fences provided with such articulation devices as well as the mounting of such fences.

• la figure 1 est une vue en plan d'une demi-pièce d'articulation selon un mode de réalisation de l'invention ;
• la figure 2 est une vue selon la flèche 2 de la figure 1 ;
• la figure 3 est une vue selon la flèche 3 de la figure 1, dans un mode de réalisation de la partie d'emboítement de la demi-pièce représentée en figure 1 ;
• la figure 4 est une vue en plan d'une articulation formée par l'assemblage de deux pièces telles que représentées en figure 1 ;
• la figure 5 est une vue latérale selon la flèche 5 de l'assemblage vu en figure 4.

Other objects and advantages of the invention will appear during the following description of embodiments, which description will be made with reference to the accompanying drawings in which:

• Figure 1 is a plan view of a half-piece of articulation according to an embodiment of the invention;
• Figure 2 is a view along arrow 2 of Figure 1;
• Figure 3 is a view along arrow 3 of Figure 1, in one embodiment of the fitting part of the half-piece shown in Figure 1;
• Figure 4 is a plan view of a hinge formed by the assembly of two parts as shown in Figure 1;
• FIG. 5 is a side view along arrow 5 of the assembly seen in FIG. 4.

We first refer to Figure 1.

The first articulation part shown in FIG. 1 (thereafter first part 1) includes an assembly part 2 on the end top of a fence post.

In one embodiment, this assembly is obtained by nesting or fitting.

According to a first variant, part 2 of part 1 comes cap the upper end of the fence post.

In another alternative embodiment, part 2 of part 1 comes lodge in the internal space of a hollow fence post, part 2 being provided with a shoulder 3 against which comes to butter the extreme free edge top of the post profile.

The part 1 has a projection 4 provided with a through hole 5 forming a hinge pin, this projection 4 comprising on one of its faces lateral a toothed ring 6 of axis 5.

In the embodiment shown, the teeth of the ring 6 are substantially identical and equidistant and extend over the entire the ring 6.

As it appears in Figure 2, the teeth of the ring 6 extend from on either side of a plane P of symmetry of the part 1, this plane P being substantially perpendicular to the axis of articulation A formed by the hole crossing 5.

Figure 3 illustrates a profile for assembly part 2 of a half-piece 1, this profile being particularly suitable for mounting the joint on a fence as presented in patent application FR 99/14244 of the plaintiff.

In Figure 3, the shape of a fence post as described in the application FR 99/14244 appears in dashes.

Adaptation of the shape of the assembly part 2 to different post geometries can be obtained, for example, by using a deformable material on at least the periphery of the assembly part 2.

We now refer to Figures 4 and 5.

As it appears in these figures, two pieces 1 substantially identical form, when the teeth of their rings 6 are facing each other, an articulation piece with indexed adjustment.

The assembly of the two parts 1 can be obtained using an assembly screw / nut or any equivalent fitting.

The articulated connecting member thus obtained allows the establishment of a heightening or flap on a pre-existing fence, without imposing the shape this enhancement or this flap.

The mounting of the two parts 1 one on the other allows a preset precise inclination of the riser relative to the fence posts, adjustment all the more fine as the number of teeth on the rings 6 is large.

The mounting of an extension or a flap, using the part articulation which has just been described can be carried out according to the methods following.

According to a first method, the operator chooses two pieces 1, 1 ', in according to the geometries of the fence posts and flap and assembles them to form joints 10, joints which are mounted on the ends of fence posts. Then, the operator sets up the posts extension or flap using the 2 'assembly parts of the half-piece 1 '.

According to a second method, the operator first mounts half pieces 1 on the fence posts and then comes to bring back the half-pieces 1 assembled or not to the riser posts or flap.

It should be noted that, in the assembly shown in Figures 4 and 5, the simple weight of the extensions can be enough to prevent the disembodiment or removal of the riser posts.

• encliquetage des parties d'assemblage 2, 2' sur les poteaux de clôture et de rehausse ;
• assemblage des deux demi-articulations 1, 1' à l'aide d'une vis pointeau sans tête ou déformation d'un axe d'articulation de type collet battu, ou bien encore à l'aide d'un écrou autocassant.

As will be understood by those skilled in the art, security with regard to malicious dismantling can be enhanced by the following measures, or their equivalents, taken alone or in combination:

• latching of the assembly parts 2, 2 'on the fence and riser posts;
• assembly of the two half-joints 1, 1 ′ using a headless needle screw or deformation of a hinge pin of the beaten collar type, or even using a self-breaking nut.

The production of an articulation member by assembling two half-pieces 1 identical is particularly economical when you want raise pre-existing fences using riser posts identical to fence posts.

Obviously, as the skilled person will understand, the adaptation of the assembly parts 2 of the parts 1 to various geometries of extensions and fence posts gives great flexibility to the device according to the invention and makes it possible to preserve the aesthetics during the mounting of extensions on pre-existing fences.

Claims (8)

Articulation device for fence extension, characterized in that it comprises a first part (1) provided with an assembly part (2) to a fence post and a second part (1 ') provided with a assembly part (2 ') to an extension post, the assembly part (2) of the first part (1) extending in a direction (D1), the assembly part (2') of the second part (1 ') extending in a direction (D2), the device comprising means for adjusting the angle between the directions (D1, D2) when the first and second parts (1, 1 '). Articulation device according to claim 1, characterized in that the assembly part (2) of the first part (1) comprises a profile intended to be received in the internal space of a hollow fence post, the assembly part (2) being provided with a shoulder (3) intended to come into abutment against the upper free end edge of the post profile. Hinge device according to claim 1, characterized in that the assembly part (2) of the first part (1) comprises a profile intended to be housed around the upper upper part of the fence post, the part d 'assembly (2) being provided with a bottom wall intended to bear against the upper free end edge of the post profile. Articulation device according to any one of Claims 1 to 3, characterized in that the assembly part (2 ') of the second part (1') comprises a profile intended to be housed in the internal space d 'a hollow riser post, the assembly part (2') being provided with a shoulder (3 ') intended to come into abutment against the lower free end edge of the post profile. Articulation device according to any one of Claims 1 to 3, characterized in that the assembly part (2 ') of the second part (1') comprises a profile intended to be housed around the lower end part of the riser post, the assembly part (2 ') being provided with a bottom wall intended to come into abutment against the lower free end edge of the post profile. Articulation device according to any one of Claims 1 to 5, characterized in that the means for adjusting the angle between the directions (D1, D2) comprise two annular toothed sectors, each of the first and second parts (1, 1 ') carrying one of these annular sectors arranged in abutment and facing each other when the two parts (1,1') are assembled. Articulation device according to any one of Claims 1 to 6, characterized in that the first and second parts (1,1 ') are assembled together using an assembly means which is safe in terms of dismantling. malicious, such as a self-breaking nut forming a hinge pin between the two parts (1,1 '). Hinge device according to any one of claims 1 to 7, characterized in that the two parts (1,1 ') are substantially identical.

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