FR3084899A1 - ACCESSORY FOR FIXING A GRILL PANEL TO A FENCE POST COMPRISING A LOCKING PIECE AND A CLAMPING PIECE - Google Patents

Abstract

The accessory (1) allows the fixing (1) of a grid panel (2) to a fence post (3), being able to be positioned in a groove (3) longitudinal of the fence post delimited at least by a bottom wall (30a) and two longitudinal retaining projections (30c) facing the bottom wall. The fixing accessory (1) comprises - a blocking piece (10), which is able to be positioned in abutment against the bottom wall (30a) of said longitudinal groove and which comprises, in its internal face intended to be oriented towards said bottom wall, at least one open housing (102A; 102D) which extends in length and which is capable of receiving a portion of at least one end warp wire (20) of the grid panel, so as to allowing blocking of this end warp wire (20) between said bottom wall (30a) and said blocking piece (10); - A clamping piece (11) which is capable of being immobilized by clamping between the blocking piece (10) bearing against the bottom wall (30a) of the longitudinal groove (30) of the fence post and the retaining projections (30c) of this fence post.

Description

ACCESSORY FOR FIXING A GRILL PANEL TO A FENCE POST COMPRISING A LOCKING PIECE AND A CLAMPING PIECE

Technical area

The present invention relates to the field of fences comprising mesh panels, in particular mesh-welded mesh mesh panels, which are constituted by the assembly of spaced vertical rods or spaced vertical wires, commonly known as "chains" or "wires. warp "and spaced horizontal rods or spaced horizontal threads, commonly known as" wefts "or" weft threads ". In this area, the main object of the invention is a new fixing accessory allowing the fixing of a grid panel to a fence post by being positioned in a longitudinal groove of this fence post.

Prior art

There are different known types of fixing accessory allowing the fixing of a grid panel to a fence post while being positioned in a longitudinal groove of this fence post.

In international patent application W02010 / 121789, the fixing accessory comprises a blocking part comprising an internal face, which is intended to be fixed in abutment against the bottom wall of the longitudinal groove of a fence post, and in which is formed at least one open housing, which extends in length and is capable of receiving a portion of a warp wire (vertical wire or vertical rod) end of a mesh panel. This finishing accessory also necessarily includes a fastening element for this blocking piece in the groove of the fence post, for example a threaded rod with self-breaking nut, which is designed to be passed through the blocking piece and the wall. the bottom of the fence post groove. The grid panel is fixed to the fence post by means of at least one fixing accessory, with a portion of the end warp wire of the grid panel positioned in said housing of the blocking part and the blocking part being fixed in abutment. against the bottom wall of the groove of the fence post, so that said end chain wire of the mesh panel is blocked between the blocking piece and the bottom wall of the groove of the fence post.

In French patent application FR 2 908 440, the fixing accessory comprises a blocking piece, which in a manner comparable to the fixing accessory of the above-mentioned international patent application W02010 / 121789 has an internal face, which is intended to be immobilized in abutment against the bottom wall of the longitudinal groove of a fence post, and in which is formed at least one open housing of the groove type, which extends in length and is capable of receiving a portion of a chain wire (vertical wire or vertical rod) at the end of a wire mesh panel. However, unlike the solution described in this international patent application WO2010 / 121789, the fence post comprises, facing the bottom wall, two longitudinal retaining projections oriented towards the inside of the longitudinal groove; the blocking piece is elastically deformable so as to be able to be fully inserted by force into the groove of the fence post by pivoting it and by exerting sufficient pressure on this piece to deform it and make it completely penetrate into the groove of the throat post. Once completely inserted into the post groove, this blocking piece is immobilized by self-tightening between the retaining projections and the bottom wall of the post groove.

Compared to the fixing accessory described in the international patent application W02010 / 121789, the fixing accessory described in this French patent application FR 2908 440 has the advantage of not requiring the use of an element of fixing passed through the blocking piece and the bottom wall of the post groove. However, in practice the deformation of the blocking piece requires the implementation of a significant mechanical pressure, which makes the operation of insertion by hand of this blocking piece into the groove of the post very difficult for the installer. Closing. In practice, we are forced with this type of solution to use a tool, of the pliers type, to effect the forced insertion of said blocking piece into the groove of the post.

In addition, it often happens that during installation, the fencing installer is forced to dismantle part of the fence to reassemble it, in particular to better take into account an elevation or a slope of the ground. With the solution described in the above-mentioned French patent application FR 2 908 440, once the blocking piece is inserted into the groove, it is difficult to remove it, which in the event of incorrect positioning of the blocking piece or in the event of the need to dismantle / reassemble the fence complicates operations for the installer.

In French patent application FR 2 908 439, the attachment accessory comprises a blocking piece, which in a manner comparable to the attachment accessory of the abovementioned international patent application WO2010 / 121789 or to the French patent application FR 2 908 440 above mentioned has an internal face, which is intended to be immobilized in abutment against the bottom wall of the longitudinal groove of a fence post, and in which is formed at least one housing which extends in length and is able to receive a portion of a warp wire (vertical wire or vertical rod) end of a mesh panel. However, unlike the solution described in French patent application FR 2 908 440, the blocking piece is designed so as to be easily inserted into the groove of the fence post and to be blocked with play in the groove. between the bottom wall and the retaining projections by rotating it by an angle of 90 °. Once inserted and rotated by 90 °, the locking piece is not immobilized in the groove and can slide longitudinally in the groove because of the play in the groove imposed by its pivoting by 90 °. Thus in this solution, in a manner comparable to the attachment accessory of the above-mentioned international patent application WO2010 / 121789, it is essential to fix the blocking piece in the groove of the post by means of a fixing element passing through the piece. blocking and bottom wall the throat of the fence post.

Objectives of the invention

The main objective of the invention is to provide a new accessory for fixing a grid panel to a fence post which is easy and quick to install and which facilitates installation operations.

Another objective of the invention is to propose a new accessory for fixing a grid panel to a fence post which can be laid easily by hand, without the use of a specific installation tool.

Another objective of the invention is to propose a new accessory for fixing a grid panel to a fence post which makes optional and optional the implementation of a fixing element through the fixing accessory and the post.

Summary of the invention

The subject of the invention is therefore an accessory for finishing a grid panel to a fence post, said accessory being able to be positioned in a longitudinal groove of the fence post delimited at least by a bottom wall and two projections of longitudinal restraints facing the bottom wall. The fixing accessory comprises a blocking piece, which is capable of being positioned in abutment against the bottom wall of said longitudinal groove and which comprises, in its internal face intended to be oriented towards said bottom wall, at least one housing open which extends in length and which is capable of receiving a portion of at least one end warp wire of the grid panel, so as to allow blocking of this end warp thread between said bottom wall and said piece of blocking. The accessory also comprises a clamping piece which is capable of being immobilized by clamping between the blocking piece (10) bearing against the bottom wall of the longitudinal groove of the fence post and the retaining projections of this fence post. .

More particularly, and optionally, the finishing accessory of the invention may include the following optional characteristics, taken individually or in combination with one another:

(c1) the locking piece and the clamping piece are two separate pieces.

(c2) the clamping piece is positioned or is adapted to be positioned against the locking piece, being able to pivot relative to the locking piece about an axis, so as to allow its clamping between the locking piece resting against the bottom wall of the longitudinal groove of the fence post and the retaining projections of this fence post.

(c3) the clamping piece is able to pivot at least an angle of 90 ° relative to the blocking piece.

(c4) the accessory comprises clamping means which allow progressive clamping of said clamping piece, by relative movement of the clamping piece relative to the blocking piece.

(c5) the clamping means comprise first progressive clamping means which allow a progressive clamping of said clamping piece, by rotation at least in a first direction of rotation of the clamping piece positioned against the blocking piece.

(C6) the clamping means comprise second progressive clamping means which allow a progressive clamping of said clamping piece, by rotation at least in said first direction of rotation of the clamping piece positioned against the blocking piece, and which are diametrically opposite and symmetrical of the first clamping means with respect to the axis of rotation of the clamping piece.

(c7) the first progressive tightening means, and if necessary the second progressive tightening means, allow a progressive tightening of the clamping piece, by rotation in a first direction of rotation, and also allow a progressive tightening of the piece of tightening, by rotation in an opposite direction of rotation.

(c8) the first progressive clamping means, and if necessary the second progressive clamping means, are positioned on one of the faces and at the periphery of the clamping piece or of the blocking piece.

(c9) the first progressive clamping means, and if necessary the second progressive clamping means, are positioned on the external face of the clamping piece which is opposite to the internal face of the clamping piece intended to be in contact or in contact with the blocking part.

(c10) the first progressive clamping means, and if necessary the second progressive clamping means, comprise at least a first clamping ramp comprising a first clamping portion, at which the clamping piece or the locking piece has a first thickness (emax) measured parallel to the axis of rotation of the clamping piece, and which is extended at least at one end by a second inclined progressive clamping portion in which the thickness of the clamping piece or the blocking piece, measured parallel to the axis of rotation of the clamping piece, gradually decreases to a thickness (emîn) less than the first thickness (emax).

(c11) the first clamping portion of the clamping ramp is also extended at its other end by a third inclined progressive clamping portion in which the thickness of the clamping piece or of the locking piece, measured parallel to the axis of rotation of the clamping piece, gradually decreases to a thickness (emîn) less than the first thickness (emax).

(C12) the clamping piece is a flat piece of length greater than its width, and preferably comprises a central axis of symmetry.

(c13) the clamping piece has at least two corner edges which are diametrically opposite and which are rounded so as to form convex diametrically opposite curved surfaces.

(c14) the clamping piece has four rounded corner edges, i.e. two corner edges which are diametrically opposite and which are rounded so as to form convex curved surfaces which are diametrically opposite and two other corner edges which are diametrically opposite and which are rounded so as to form diametrically opposite convex curved surfaces.

(c15) the blocking piece is at least partially elastically deformable so as to allow it to be interlocked with clamping in the longitudinal groove of a fence post.

(C16) the blocking piece is a flat piece of length greater than its width, and preferably comprises a central axis of symmetry.

(c17) the locking piece is elastically deformable at least in the direction of its length so as to allow a reduction in the length of the locking piece, when it is interlocked with clamping in the longitudinal groove of a fence post.

(c18) the blocking piece has at least one end a first clamping tab which is elastically deformable.

(c19) the blocking piece comprises a second clamping tab, which is diametrically opposite to the first clamping tab and preferably symmetrical with the first clamping tab.

(c20) the first clamping tab, and where appropriate the second clamping tab, comprises at least a first rounded corner edge forming a convex curved bearing surface, and preferably at least a second rounded corner edge forming a convex curved bearing surface.

(c21) the blocking piece comprises at least two housings for receiving at least one end warp wire from a mesh panel, which housings are identical and symmetrical to each other.

(c22) the blocking part and the clamping part comprise on their faces intended to be in contact with each other, anti-rotation male imprints which allow a blocking in rotation of the two parts with respect to each other .

(c23) the locking piece and the clamping piece are made of different materials, and preferably in which the locking piece is made of plastic and / or the clamping piece is made of metal or a metal alloy.

The invention also relates to an accessory for finishing a grid panel to a fence post, the fixing accessory comprising a blocking piece, which comprises, in its internal face intended to be oriented towards the fence post , at least one open housing which extends in length and which is capable of receiving a portion of at least one end warp wire of the grid panel. The accessory also comprises a clamping part which is positioned or is adapted to be positioned against the blocking part, being able to pivot relative to the blocking part about an axis. The clamping piece or the locking piece comprises first progressive clamping means in the form of at least a first clamping ramp comprising a first clamping portion, at which the clamping piece or the locking piece has a first thickness (emax) measured parallel to the axis of rotation of the clamping piece, and which is extended at least at one end by a second inclined progressive clamping portion in which the thickness of the clamping piece or the piece block, measured parallel to the axis of rotation of the clamping piece, gradually decreases to a thickness (emîn) less than the first thickness (emax).

More particularly, and optionally, this finishing accessory of the invention may include the above-mentioned optional features, and in particular the above-mentioned optional features (c1), (c3), (c8), (c9), (c10), ( c13), (c14), (c15), (c16), (c17), (c18), (c19), (c20), (c21), (c22), (c23), taken alone or in combination. one with the other.

More particularly, and optionally, this finishing accessory of the invention may include the following optional characteristics taken individually or in combination with one another:

- The accessory comprises second progressive clamping means in the form of at least a second clamping ramp comprising a first clamping portion, at the level of which the clamping piece or the blocking piece has a first thickness (emax) measured parallel to the axis of rotation of the clamping piece, and which is extended at least at one end by a second inclined progressive clamping portion (113b) in which the thickness of the clamping piece or of the locking piece , measured parallel to an axis of rotation of the clamping piece, gradually decreases to a thickness (emîn) less than the first thickness (emax), said second clamping ramp being diametrically opposite and symmetrical to the first clamping ramp by relative to the axis of rotation (11a) of the clamping piece.

the first clamping portion of the first clamping ramp, and where appropriate of the second clamping ramp, is also extended at its other end by a third inclined progressive clamping portion in which the thickness of the clamping piece or of the blocking piece, measured parallel to the axis of rotation of the clamping piece, gradually decreases to a thickness (emîn) less than the first thickness (emax).

The subject of the invention is also a fence assembly comprising at least one fence post comprising a longitudinal groove delimited at least by a bottom wall and two longitudinal retaining projections facing the bottom wall, at least a grid panel comprising spaced-apart warp threads, and at least one of the above-mentioned fixing accessories.

The invention also relates to the use of at least one aforementioned fixing accessory, for fixing an extreme warp wire from a grid panel to a fence post.

The subject of the invention is also a method of fixing a grid panel, comprising spaced apart chain wires, to a fence post comprising a longitudinal groove delimited at least by a bottom wall and two longitudinal screw retaining projections. -with respect to the bottom wall, by means of at least one aforementioned fixing accessory, said method comprising the following successive steps:

(a) the grid panel is positioned relative to the fence post, such that an end warp wire from the grid panel is positioned in the groove of the fence post;

(b) at least the blocking piece of the fixing accessory is inserted into the groove of the fence post, (c) the blocking piece is moved in the direction of the bottom wall so as to introduce a portion of the wire end chain (of the mesh panel in the housing or in one of the housings (of the locking piece;

(d) a part of the clamping piece is positioned between the locking piece and the groove retaining projections, so that the clamping piece is immobilized by clamping between the retaining projections of the fence post and the piece blocking which is pushed by the clamping piece, in abutment against the bottom wall of the longitudinal groove of the fence post.

More particularly, and optionally, this process may include the following optional characteristics taken individually or in combination with one another:

- during step (d) the clamping part is pivoted relative to the blocking piece about an axis transverse to the bottom wall of the groove, and preferably by an angle of 90 °.

the retaining projections being connected to the bottom wall by two connecting walls facing each other, during step (b) the locking piece is inserted in the groove of such so the blocking piece is immobilized by clamping between these two connecting walls.

- during step (b) the blocking part is inserted into the groove with a given orientation and the blocking part is pivoted about an axis transverse to the bottom wall of the groove, preferably an angle of 90 °, so as to immobilize it by clamping between these two connecting walls.

- all the steps are carried out by hand, without using a tool.

The invention finally relates to a computer program product comprising program code instructions and designed, when executed automatically by electronic control means of a machine or manufacturing installation, and in particular of a machine of '3D printing, to have said machine or installation make the blocking part and / or the clamping part of the above-mentioned fixing accessory.

Brief description of the figures

Other characteristics and advantages of the invention will appear more clearly on reading the detailed description below of several alternative embodiments in accordance with the invention, which detailed description is given by way of non-limiting and non-exhaustive examples of the invention and with reference to the accompanying drawings in which:

- Figure 1 is an isometric perspective view of an example of a grid panel fixed to a fence post by means of a fixing accessory according to the invention;

- Figure 2 is an isometric perspective view of the fixing accessory of Figure 1, the blocking part and the clamping part of this fixing accessory being fitted one on the other;

- Figure 3 and Figure 4 are two side views of the fixing accessory of Figure 2;

- Figure 5 is a cross-sectional view of the fixing accessory of Figure 2;

- Figure 6 is an isometric perspective view of the locking part of the fixing accessory of Figure 2;

- Figure 7 is a front view of the locking part of Figure 6;

- Figure 8 is a rear front view of the locking piece of Figure 6;

- Figure 9 is a side view of the locking piece of Figure 6;

- Figure 10 is an isometric perspective view of the clamping part of the fixing accessory of Figure 2;

- Figure 11 and Figure 12 are two side views of the clamping piece of Figure 10;

- Figure 13 is a rear front view of the clamping piece of Figure 10;

- Figure 14 is a cross-sectional view in a horizontal plane of the fence post, the end warp wire of the mesh panel and the fixing accessory of Figure 1;

- Figures 15 to 21 respectively illustrate the main steps for fixing the end warp wire of a wire mesh panel to a fence post by means of the fixing accessory of Figure 2.

detailed description

There is shown in Figure 1 an accessory 1 according to the invention and used to attach a grid panel 2 to a fence post 3.

The fence post 3 has two opposite faces, each having a longitudinal groove 30. Each longitudinal groove 30 is delimited by a bottom wall 30a, two longitudinal retaining projections 30c, which extend over the entire height of the post 3 vis-à-vis opposite the bottom wall 30a, and two front or rear connecting walls 30b which are opposite one another and which respectively connect the two retaining projections 30c to the bottom wall 30a .

In the particular embodiment of FIG. 1, the mesh panel 2 is a rigid panel of the lattice-welded type, constituted by spaced vertical rods 20, commonly designated “chains” or “chain wires” welded to rods. horizontal 21 spaced apart commonly known as "wefts" or "weft son". In this particular example, the panel 2 is of the pleated panel type, each vertical rod 20 (warp thread) forming a V-fold in the upper part and if necessary in the middle part and / or in the lower part.

The invention is not limited to pleated panels, but extends to any type of known mesh panel comprising spaced-apart warp threads, and can in particular also be applied to straight panels in which the vertical rods ( warp threads) are straight along their entire length. The grid panel can also be of the “double wire” type, that is to say comprise pairs of weft yarns spaced vertically, the weft yarns of a pair being fixed at the same height on both sides. other warp threads.

The fixing accessory 1 comprises two separate parts 10, 11, which in FIGS. 2 to 5 are positioned one on the other, namely a clip 10 having a function of blocking part (FIGS. 6 to 9), and a counter clip 11 (FIGS. 10 to 13) having a clamping part function.

Figures 6 to 9 - Locking piece 10

The locking piece 10 is a flat piece having a central axis of symmetry 10a, and having an outer face 100, intended to be oriented towards the clamping piece 11, and an inner face 101, intended to be oriented towards the fence post. 3. This blocking piece 10 has a length L10 and a width ho measured in a plane (X, Y) perpendicular to its central axis of symmetry 10a (FIG. 7),.

In the internal face 101 of the blocking piece 10 are formed as open rectilinear housings 102A, 102B, 102C, 102D, mistletoe are each delimited by a rectilinear groove having a U-shaped profile and mistletoe extend parallel to each other. other in the direction Y of the width of the blocking piece and over the entire width of the blocking piece 10.

The two housings 102 A and 102D are symmetrical to each other with respect to a central plane of symmetry 10b (FIG. 8) of the locking piece 10 and the two housings 102B and 102C are symmetrical to one another. other with respect to said central plane of symmetry 10b. This symmetry of each pair of housings 102A / 102D -102B / 102C advantageously allows greater flexibility in mounting the blocking piece 10 in the groove of a fence post 3 with two possible mounting directions.

The two extreme housings 102A and 102D more particularly have a shallower depth than the other two housings

102B and 102C.

Each housing 102A, 102B, 102C, 102D is dimensioned so as to be able to receive a portion of an end warp wire 20 from a grid panel 2.

Preferably, but not necessarily, the dimensions of each housing 102A, 102B, 102C, 102D can be adapted to the diameter of the end warp wire 20 of the mesh panel 2, so that said end warp wire can be inserted into the housing 102A, 102B, 102C, 102D with a tightening of the locking piece 10 on the warp thread. Thus, when the warp thread is inserted into the housing 102A, 102B, 102C, 102D, the blocking piece 10 is held relative to the warp thread and does not slide under the effect of its weight relative to the warp thread .

Generally, in the context of the invention, the number of housings of the blocking piece 10 is unimportant, the main thing being that the blocking piece 10 comprises at least one open housing capable of receiving with clamping or without tightening, the end warp wire 20 of a wire mesh panel 2.

In the particular variant of the appended figures, the blocking piece 10 is preferably resiliently deformable to facilitate its elastic fitting in the groove 30 of the fence post 3.

Preferably, this deformation can be obtained by hand when mounting the locking piece 10 in the groove 30 of the fence post 3, without requiring the use of a specific tool.

More particularly, in the particular embodiment illustrated in the figures, this deformation of the locking piece 10 is made possible by the use of two clamping lugs 103, which are elastically deformable in a plane parallel to the plane (X , Y), so as to allow, in the deformed state, a reduction in the length L10 of the locking piece 10.

Thus, in the absence of mechanical stress, the length L10 of the locking piece 10 at rest in the undeformed state (FIG. 7) is maximum (Lio = Lmax). This maximum length Lmax is chosen so that it is slightly greater than the maximum spacing Emax (FIG. 14) between the two connecting walls 30b of the groove 30 of the fence post.

The elastic deformation of the two clamping lugs 103 allows a sufficient reduction in the length L10 of blocking piece 10 to allow its elastic fitting into the groove 30 of the fence post 3 between the two connecting walls 30b (FIG. 14), such that this will be described in more detail later.

More particularly, the width ho of the blocking piece 10 is less than the minimum spacing Emin (FIG. 14) between the two retaining projections 30c and the length L10 of the blocking piece 10 at rest (Lw = Lmax) is greater. at the minimum spacing Emin (FIG. 14) between the two retaining projections 30c.

More particularly, to facilitate its deformation in contact with the connecting walls 30b of the groove 30, the blocking piece 10 has four rounded corner edges 106A, 106B, namely (FIG. 7):

two corner edges 106A which are diametrically opposite with respect to the central axis of symmetry 10a of the locking piece 10 and which are rounded so as to form convex curved bearing surfaces in the thickness of the locking piece diametrically opposite with respect to the central axis of symmetry 10a of the locking piece 10 and

- two other corner edges 106B which are diametrically opposite with respect to the central axis of symmetry 10a of the clamping piece and which are rounded so as to form convex curved bearing surfaces diametrically opposite with respect to the axis of central symmetry 10a of the locking piece 10.

Preferably, but not necessarily, the two clamping lugs 103 are symmetrical to one another with respect to the vertical central axis 10b of the locking piece 10.

In another variant, the blocking piece 10 may have only one clamping tab 103.

The invention is not limited to the particular variant embodiment of the locking piece 10 with deformable clamping lugs 103, nor to an assembly of this locking piece by rotation.

In another variant, the clamping lugs 103 can be replaced by any equivalent means fulfilling the same function.

The blocking piece 10 could also be designed to be inserted into the groove 30 without pivoting on itself and for example by simple translation in the direction of the bottom wall 30a of the groove 30.

In another variant, the blocking piece 10 could also be non-deformable.

The locking piece 10 is not necessarily symmetrical, the central axis 10a not necessarily being an axis of symmetry of the piece.

Preferably, but not necessarily, the locking piece 10 has a central cylindrical through hole 104 (FIGS. 5 and 6) which allows, if necessary, the passage of a fixing piece of the screw type, through the blocking piece 10.

Preferably, but not necessarily, the blocking piece 10 comprises in its external face 100, a hollow female imprint 105 capable of cooperating with a male imprint in relief of the clamping piece 11, for the blocking in rotation of the piece of tightening 11 relative to locking piece 10 around a central axis 1a of the fixing accessory 1, when the two pieces 10 and 11 are aligned in their final fixing configuration of FIG. 1.

The locking piece 10 is preferably a single piece which can be manufactured by any known means and for example by molding or by 3D printing.

The material of the blocking piece 10 is of no importance for the invention. In a non-limiting and non-exhaustive manner, the blocking piece 10 can be made of plastic, and for example of polyamide 6.

The locking piece 10 can also be made of metal or a metal alloy, and for example a metal alloy, in particular a zinc, aluminum, magnesium and copper alloy, of the Zamak type.

Figures 10 to 13 - Clamping piece 11

The clamping piece 11 is intended to be inserted in part between the blocking piece 10 and the two longitudinal retaining projections 30c of the groove 30 of the fence post 3.

The clamping piece 11 is a flat piece which has a central axis of symmetry 11a, which has an outer face 110 and an inner face 111 intended to be oriented towards the locking piece 10. This clamping piece 11 has (FIG. 10) a length Lu and a width lu measured in a plane perpendicular to its central axis of symmetry 11a.

More particularly, as for the locking piece 10, the width read of the clamping piece 10 is less than the minimum spacing Emin (FIG. 14) between the two retaining projections 30c, so as to facilitate its introduction into the groove 30 of the post 3. The length Lu of the clamping piece 11 is greater than the minimum spacing Emin (FIG. 14) between the two retaining projections 30c, but is less than the minimum spacing E'min between the two connecting walls 30b (figure 14)

The clamping piece 11 comprises, in two diametrically opposite angles, two curved edges 112A symmetrical to one another and diametrically opposite with respect to the central axis of symmetry 11a of the clamping piece. Each curved edge 112A forms in the thickness of the clamping piece 11 a convex curved face.

The clamping piece 11 also includes, in two other diametrically opposite angles, two curved edges 112B symmetrical to one another and diametrically opposite with respect to the central axis 11a of the clamping piece. Each curved edge 112B forms in the thickness of the clamping piece 11 a convex curved face.

Each curved edge 112A is connected to a curved edge 112B by a substantially straight edge 112C and is connected to the other curved edge 112B by a substantially straight edge 112D.

The curved edges 112A make it possible to facilitate the insertion of the clamping piece 11 between the blocking piece 10 and the two longitudinal retaining projections 30c of the groove 30 of the fence post 3, by rotation of the clamping piece 11 on itself. in a first direction of rotation R1 FIG. 10) around the central axis 11 a of the clamping piece.

The curved edges 112B make it possible to facilitate the insertion of the clamping piece 11 between the blocking piece 10 and the two longitudinal retaining projections 30c of the groove 30 of the fence post 3, by rotation of the clamping piece 11 on itself. in an opposite direction of rotation R2 (FIG. 10) around the central axis 11a of the clamping piece.

The external face 110 of the clamping piece 11 also has at its periphery two clamping ramps 113 which are diametrically opposite, and which are preferably identical and symmetrical to each other, with respect to the central axis 11a of the clamping piece 11.

These two clamping ramps 113 have the function of allowing progressive clamping of the clamping piece 11 between the locking piece 10 and the two longitudinal retaining projections 30c of the groove 30 of the fence post 3, during the rotation of the clamping piece 11 in one or other of the directions of rotation R1 or R2 mentioned above.

More particularly, each clamping ramp 113 has a central portion 113a which defines a substantially flat clamping surface and parallel to the central axis 11a, at which the thickness e of the clamping piece 11 is maximum (e = emax / figure 12). This central portion 113a is extended at each end by an inclined portion 113b whose upper face forms a slope and at the level of which the thickness e of the clamping piece 11 gradually decreases from the central portion 113a corresponding to the maximum thickness Emax up to a minimum thickness Emin (figure 12).

With reference to FIGS. 5 and 13, the clamping piece 11 has, in its internal face 111, a raised male imprint 114 able to cooperate with the abovementioned female imprint 105 of the clamping piece 11, for locking in rotation of the clamping piece 11 relative to the blocking piece 10 about a central axis 1a of the fixing accessory 1.

Preferably, but not necessarily, the clamping piece 11 has a central through hole 114, preferably of non-circular cross section, which if necessary allows the passage of a fixing piece of screw type, through the clamping piece 11.

The invention is not limited to the particular variant of the clamping piece with clamping ramps 113.

In another variant, the clamping ramps could be formed on the internal face 100 of the clamping piece 11 or could be formed on the outer face 100 of the locking piece 10. More generally in another variant, the clamping ramps 113 can be replaced by any equivalent means fulfilling the same progressive tightening function by relative displacement of the clamping part with respect to the blocking part 10.

The clamping piece 11 is not necessarily symmetrical, the central axis 11a not necessarily being an axis of symmetry of the piece.

The clamping piece 11 is preferably a single piece which can be manufactured by any known means and for example by molding or by 3D printing.

The material of the clamping piece 11 is of no importance for the invention. In a non-limiting and non-exhaustive manner, the clamping piece 11 can be made of plastic, and for example of polyamide 6. The clamping piece 11 can also be made of metal or a metal alloy, and for example a metal alloy, in particular of zinc, aluminum, magnesium and copper alloy, of the Zamak type.

Preferably, the locking piece 10 can be chosen from a material different from that of the clamping piece, in order to reduce its cost price, knowing that once the fixing accessory is mounted the locking piece 10 is hidden by the clamping piece 11 and is protected by the clamping piece 11, in particular from UV radiation from the sun.

By way of example and without limitation of the invention, the blocking piece 10 can advantageously be made of plastic, and for example of polyamide 6 and the clamping piece 11 can be made of metal or a metal alloy, and in particular by zamak.

Figures 15 to 21 / t Figures 1 and 14 - Attachment of a mesh panel 2 to a fence post 3 by means of fixing accessory 1

To fix a wire mesh panel 2 to a fence post 3 by means of the fixing accessory 1, the procedure is for example as follows. Figure 15

The mesh panel 2 is positioned relative to the fence post 3, the end warp wire 20 of the mesh panel 2 being positioned in the vertical groove 30 of the fence post 3.

Figures 16

The locking piece 10 is oriented and positioned in line with the groove 30 of the fence post 3, so that its internal face 101 with the housings 102A to 102D is oriented towards the bottom wall 30a of the groove 30, that its central axis 10a is oriented substantially perpendicular to the bottom wall 30a of the groove 30 and its width ho is oriented substantially horizontally. In this orientation, the two deformable clamping legs 103 are aligned vertically, being oriented respectively upwards and downwards.

Figure 17

The blocking piece 10 is introduced by hand into the groove 30 of the fence post 3 simply by moving it in translation in the direction of the bottom wall 30a of the groove 30, the blocking piece 10 passing easily between the two projections of restraint 30c (110 <Emin).

Figure 18

The locking piece 10 is pivoted by hand on itself, in a vertical plane, around its central axis 10a oriented perpendicular to the bottom wall 30a, in one direction of rotation or the other, so as to bring, as a function of the direction of rotation of the part 10, the opposite rounded edges 106A or the opposite rounded edges 106B of the clamping lugs 103 in contact with the connecting walls 30b. By continuing the rotation of the blocking piece 10 around the axis 10a, the clamping lugs 103 deform, which causes the length L10 of the blocking piece 10 to decrease, thereby allowing it to be force-fitted between the two connecting walls 30b of the groove 30. This rotation of the blocking piece 10 is carried out at an angle of approximately 90 °, until the length L10 of the piece 10 is aligned substantially horizontally, the clamping tabs 103 being substantially aligned horizontally.

When the locking piece 10 is released in its position in FIG. 18, the clamping tabs 103 tend to return to their initial shape at rest and thus advantageously exert clamping forces on the connecting walls 30b of the groove 30 which immobilize the blocking piece 10 relative to the fence post 3, by elastic clamping of this blocking piece 10 in the groove 30 of the post 3. Figure 19

The blocking piece 10, clamped between the two connecting walls 30b, is pushed by hand towards the bottom wall 30a of the groove 30, so as to introduce a portion of the end warp wire 20 into the housing of the piece of blocking 10 which is opposite this end warp wire 20, that is to say in the particular case of FIG. 19, the housing 102A or 102D. During this translation of the locking piece 10 towards the bottom wall 30, the clamping lugs 103 remain in contact with the connecting walls 30 of the groove 30 and thus maintain their tightening of the locking piece 10 in the groove 30, without obstructing the movement of the locking piece 10. Figure 20 and 21

The clamping piece 11 is oriented and positioned by hand on the blocking piece 10, so that its central axis 11a is oriented substantially perpendicular to the bottom wall 30a of the groove 30, so that its width read is oriented substantially horizontally, and that its internal face 111 is brought into planar contact against the external face 100 of the locking piece 10. The clamping ramps 113 of the clamping piece 10 are aligned substantially horizontally, being oriented respectively upwards and towards the bottom, and the clamping face of their central part 113a is positioned in a plane situated between the retaining projections 30c and the locking piece 10.

Figure 1 and 14

The clamping piece 11 is pivoted by hand on itself, relative to the blocking piece 10, in a vertical plane and around its central axis 11a, in a direction of rotation R1 or in the other R2, at an angle of approximately 90 °, until the clamping ramps are aligned substantially horizontally (Figure 1). During this rotation and thanks to the clamping ramps 113, a progressive clamping of the clamping piece 11 is obtained between on the one hand the blocking piece 10, which is pushed into abutment against the bottom wall 30a of the groove 30 , and on the other hand the retaining projections 30c of the post 3 (Figure 14). The fixing accessory 1 is thus immobilized by clamping in all directions in the groove 30 of the post, and the end warp wire 20 of the grid panel 2 is blocked between the locking piece 10 and the bottom wall 30a of the throat 30 of the post 3.

Once the clamping piece 11 has pivoted 90 ° around its axis 11a and its length Lu is aligned horizontally, the anti-rotation male fingerprint 114 of the clamping piece 11 is fitted into the female fingerprint 105 anti rotation of the locking piece 10 (FIG. 5), which allows the clamping piece 11 to be blocked in rotation relative to the locking piece 10 in both directions of rotation R1 and R2.

During the installation of one or more mesh panels 2, the installer can firstly temporarily position all the locking pieces 10 in the grooves 30 and on the end chain wires 20 of the mesh panel (s) 2, then can check the correct positioning of the grid panel (s) 2, and if necessary correct the installation of a badly positioned grid panel by removing the corresponding blocking piece (s) 10 and repositioning them once the grid panel 2 is positioned corrected.

Once the installer has made sure of the correct positioning of the grid panel (s) 2, he can advantageously in a second step place all the clamping pieces 11 on the locking pieces 10, as previously described.

All the above-mentioned laying operations can advantageously be carried out quickly and easily, in particular without using a specific tool for installing the fixing accessories 1.

Optionally, but without this being compulsory, it is also possible, once a fixing accessory 1 has been finally installed, to fix it to the fence post 3 by means of a screw or equivalent, penetrating into the bottom wall 30a of the groove 30 being passed through the clamping piece 11 and through the blocking piece 10 of the fixing accessory 1.

In the particular variant embodiment, which has been described with reference to the appended figures, the two parts 10 and 11 of the fixing accessory 1 are separated from each other. This is not limitative of the invention. In another variant, the two parts 10 and 11 of the fixing accessory 1 could be mechanically connected together before and during their mounting in the groove of a fence post.

Claims (31)

1. Attachment accessory (1) of a mesh panel (2) to a fence post (3), said accessory being able to be positioned in a longitudinal groove (3) of the fence post delimited at least by one wall bottom (30a) and two longitudinal retaining projections (30c) facing the bottom wall, the fixing accessory comprising a locking piece (10), which is capable of being positioned in abutment against the bottom wall (30a) of said longitudinal groove and which comprises, in its internal face (101) intended to be oriented towards said defensive wall, at least one open housing (102A; 102B; 102C; 102D) which extends in length and which is capable of receiving a portion of at least one end warp wire (20) of the grid panel, so as to allow blocking of this end warp thread (20) between said bottom wall (30a) and said blocking piece (10), characterized in that it also comprises a clamping piece (1 1) which is capable of being immobilized by clamping between the blocking part (10) bearing against the bottom wall (30a) of the longitudinal groove (30) of the fence post and the retaining projections (30c) of this post Closing. 2. Accessory according to claim 1, wherein the blocking part (10) and the clamping part (11) are two separate parts. 3. Accessory according to any one of the preceding claims, in which the clamping part (11) is positioned or is adapted to be positioned against the blocking part (10), being able to pivot relative to the blocking part. (10) around an axis (11a), so as to allow it to be clamped between the blocking piece (10) bearing against the bottom wall (30a) of the longitudinal groove (30) of the fence post and your projections retainer (30c) of this fence post. 4. Accessory according to claim 3, wherein the clamping piece is capable of pivoting at least an angle of 90 ° relative to the blocking piece (10). 5. Accessory according to any one of the preceding claims, comprising clamping means which allow progressive clamping of said clamping piece (11), by relative displacement of the clamping piece (11) relative to the blocking piece ( 10). 6. Accessory according to claim 5, wherein the clamping means comprise first progressive clamping means (113) which allow a progressive clamping of said clamping piece (11), by rotation at least in a first direction of rotation of the clamping piece (11) positioned against the locking piece (10). 7. Accessory according to claim 6, which the clamping means comprise second progressive clamping means (113) which allow a progressive clamping of said clamping piece (11), by rotation at least in said first direction of rotation of the piece clamp (11) positioned against the locking piece (10), and which are diametrically opposite and symmetrical of the first clamping means (113) with respect to the axis of rotation (11a) of the clamping piece (11). 8. Accessory according to any one of claims 6 or 7, wherein the first progressive tightening means (113), and if necessary your second progressive tightening means (113), allow a progressive tightening of the clamping piece ( 11), by rotation in a first direction of rotation, and also allow progressive tightening of the clamping piece (11), by rotation in an opposite direction of rotation. 9. Accessory according to any one of claims 6 to 8, in which the first progressive clamping means (113), and if necessary the second progressive clamping means (113), are positioned on one of the faces and at the periphery of the clamping piece (11) or of the locking piece (10). 10. Accessory according to any one of claims 6 to 9, in which the first progressive clamping means (113), and if necessary the second progressive clamping means (113), are positioned on the external face (110) of the clamping piece (11) which is opposite to the internal face (111) of the clamping piece (11) intended to be in contact or in contact with the locking piece (10). 11. Accessory according to any one of claims 6 to 10, in which the first progressive clamping means (113), and if necessary the second progressive clamping means (113), comprise at least a first clamping ramp comprising a first clamping portion (113a), at which the clamping piece (11) or the locking piece (10) has a first thickness (emax) measured parallel to the axis of rotation (11a) of the clamping piece (11a), and which is extended at least at one end by a second inclined progressive clamping portion (113b) in which the thickness of the clamping piece (11) or of the locking piece (10), measured parallel to the axis of rotation (11a) of the clamping piece (11a), gradually decreases to a thickness (emin) less than the first thickness (e _ma x). 12. Accessory according to claim 11, in which the first clamping portion (113a) of the clamping ramp (113) is also extended at its other end by a third inclined progressive clamping portion (113b) in which the thickness of the clamping piece (11) or the blocking piece (10), measured parallel to the axis of rotation (11a) of the clamping piece (11a), gradually decreases to a thickness (emin) less than the first thickness (emax). 13. Accessory according to any one of the preceding claims, in which the clamping piece (11) is a flat piece of length (Lu) greater than its width (lu), and preferably comprises a central axis of symmetry (11a) . 14. Accessory according to any one of the preceding claims, in which the clamping piece (11) comprises at least two corner edges which are diametrically opposite and which are rounded so as to form convex curved surfaces which are diametrically opposite. 15. Accessory according to any one of the preceding claims, in which the clamping part (11) has four rounded corner edges, namely two corner edges which are diametrically opposite and which are rounded so as to form surfaces. diametrically opposite convex curves and two other corner edges which are diametrically opposite and which are rounded so as to form diametrically opposite convex curved surfaces. 16. Accessory according to any one of the preceding claims, in which the biocage piece (10) is at least partially elastically deformable so as to allow it to be interlocked with clamping in the longitudinal groove (30) of a fence post. 17. Accessory according to any one of the preceding claims, in which the blocking piece (10) is a flat piece of length (Lw) greater than its width (ho), and preferably comprises a central axis of symmetry (10a) . 18. Accessory according to claims 16 and 17, wherein the blocking piece (10) is elastically deformable at least in the direction of its length (L10) so as to allow a reduction in the length of the blocking piece (10) , when it is fitted with clamping in the longitudinal groove (30) of a fence post. 19. Accessory according to any one of claims 16 to 18, in which the blocking piece (10) has at least one end a first clamping tab (103) which is elastically deformable. 20. Accessory according to claim 19, in which the blocking piece (10) comprises a second clamping tab (103), which is diametrically opposite to the first clamping tab (103) and preferably symmetrical with the first clamping tab. (103). 21. Accessory according to any one of claims 19 or 20, wherein the first clamping tab (103), and if necessary the second clamping tab (103), comprises at least a first rounded corner edge (106A or 106B) forming a convex curved bearing surface, and preferably at least one second rounded corner edge (106A or 106B) forming a convex curved bearing surface. 22. Accessory according to any one of the preceding claims, in which the blocking part (10) comprises at least two housings (102A / 102D or 102B / 102C) for receiving at least one end warp wire (20) d 'a mesh panel, which housings (102A / 102D or 102B / 102C) are identical and symmetrical to each other. 23. Accessory according to any one of the preceding claims, in which the blocking part (10) and the clamping part (11) have on their faces intended to be in contact with each other male impressions (114 , 105) anti-rotation which allow the two parts (10, 11) to be prevented from rotating with respect to one another. 24. Accessory according to any one of the preceding claims, in which the blocking part (10) and the clamping part (11) are made of different materials, and preferably in which the blocking part (10) is in plastic and / or the clamping piece (11) is made of metal or metal alloy. 25. Fence assembly comprising at least one fence post (3) comprising a longitudinal groove (30) delimited at least by a bottom wall (30a) and two longitudinal retaining projections (30c) facing the bottom wall (30a), at least one grid panel (2) having spaced apart warp threads (20), and at least one fixing accessory (1) of any one of the preceding claims. 26. Use of at least one fixing accessory of any one of claims 1 to 24, to fix an end warp wire (20) of a grid panel (2) to a fence post (3). 27. Method for fixing a grid panel (2), comprising spaced-apart warp wires (20), to a fence post (3) comprising a longitudinal groove (30) delimited at least by a bottom wall (30a ) and two longitudinal retaining projections (30c) facing the bottom wall (30a), by means of at least one fixing accessory (1) of any one of claims 1 to 24, the process comprising at least the following successive steps: (a) the grid panel (2) is positioned relative to the fence post (3), so that an end warp wire (20) of the grid panel is positioned in the groove (30) of the pole fence (3); (b) at least the biocage piece (10) of the fixing accessory (1) is inserted into the groove (30) of the fence post, (c) the blocking piece (10) is moved in the direction of the bottom wall (30a) so as to introduce a portion of the end warp wire (20) of the grid panel into the housing or into one of the housings (102A; 102B; 102C; 102D) of the locking piece (10); (d) a part of the clamping piece (11) is positioned between the locking piece (10) and the retaining projections (30c) of the groove (30), so that the clamping piece is immobilized by clamping between the retaining projections (30c) of the fence post and the blocking piece (10) which is pushed, by the clamping piece (11), bearing against the bottom wall (30a) of the longitudinal groove (30) of the fence post (3). 28. The method of claim 27, wherein during step (d) the clamping piece (11) is pivoted relative to the locking piece (10) about an axis (11a) transverse to the bottom wall (30a) of the groove (30), and preferably at an angle of 90 °. 29. Method according to any one of claims 27 or 28, in which the retaining projections (30c) being connected to the bottom wall (30a) by two connecting walls (30b) opposite one on the other, during step (b) the blocking piece (10) is inserted into the groove (30) so that the blocking piece (10) is immobilized by clamping between these two connecting walls ( 30b). 30. The method of claim 29, wherein during step (b) the blocking piece (10) is inserted into the groove (30) with a given orientation and the blocking piece is pivoted around a axis transverse to the bottom wall (30a) of the groove (30), preferably at an angle of 90 °, so as to immobilize it by clamping between these two connecting walls (30b). 31. Method according to any one of claims 27 to 30, in which all the steps are carried out by hand, without using a tool.