EP1544404A1 - Bar grating with removable locked bars - Google Patents

Abstract

The grille has longitudinal bars (2, 3) each comprising connection slugs connected with coupling slugs of transversal bars (4, 5). Each connection slug has form and length adapted for being received in transversal cut (142) of respective coupling slugs. Connection segments of respective connection slugs are limited by shoulders (127E, 126E) axially arranged opposite to stop surfaces (148B, 149B) of the corresponding coupling slug.

Description

The present invention relates to constituting a grid.

In a classical way, a grid is constituted by a mesh of two mutually orthogonal sets of bars parallel metal welded together. For a purpose decorative, some of the bars may have a shape shapely and, in addition, ironwork patterns may be welded between neighboring bars.

A disadvantage of such grids is that the user can not customize them and furthermore the manufacturer must manage a stock of grids of all Possible sizes. In short, there are at least three parameters to be managed, namely the length and width of the grid, as well as the nature of the bars, that is to say their appearance.

GB 2 268 956 A teaches a grid comprising a horizontal bar with a side notch on which comes laterally by sliding a branch of a slider or elastic clip in a clothespin, pushed down to the horizontal bar to be imprisoned axially by the two sides of the notch. The slide, thus fixed in axial position on the horizontal bar, is himself prisoner inside a vertical bar consisting of two opposite U-shaped angles.

Such a fastener therefore requires an insert.

The present invention aims to simplify the assembly of locking in the mutual position of the bars.

For this purpose, the invention relates first of all to a set of grid elements, including a first plurality of longitudinal bars each comprising a second plurality of securing sections with respectively a said second plurality of sections of coupling belonging to cross bars, characterized in that each coupling section has a transverse cut and each section of solidarisation comprises a segment of solidarity, shape and length adapted to be received in the cutting, segment limited by a shoulder of a relief lateral axial positioning arranged for then find axially opposite a stop surface making part of stop means belonging to the section of coupling considered.

Thus, the bars being coupled, the shoulder opposes any lateral force that would be exercised, voluntarily or not, on the associated crossbar, and would be likely to separate it from a neighbor.

This set of elements therefore presents itself, in storage, in the form of free elements, which are then assembled into a grid. For convenience of explanation, suppose here that the longitudinal bars extend substantially horizontally and transverse bars substantially vertically.

As the stop coupling, supplemented as necessary by the sealing the ends of the appropriate bars, avoids need for a mutual welding of crossed bars, which would be impracticable for a common user, it is no need to store all possible types of grid because it can be assembled quickly, by mounting in the relative positions, without risking not have the desired locking elements, since these are integrated into the bars. The user can choose cross bars independently of the bars longitudinal, whether for their length or their form.

It should be noted that, for a small grid, the first plurality and / or second plurality of bars can each be limited to one bar.

The grid can for example be used to protect a opening or constitute a kind of ladder serving for example support for shelves.

In a preferred embodiment, the section of coupling is of the female type, the cutout being a hole of cross coupling with a clearance template adapted to be able to ensure the free passage of a longitudinal bar when it forms an axis having an axis direction aligned with a template direction of passage defined by the hole, each section of solidarization being of the male type and the shoulder being arranged for, by misalignment between the axis directions and jig passage, come axially opposite the stop surface.

So called horizontal bars are pins for the vertical bars that we put on slip, as long as the orientations of the associated sections agree, then the vertical bars are then locked in position by misalignment when they have reached the respective axial positions provided on the horizontal bars.

Preferably, the respective coupling sections and of solidarity are arranged so that misalignment obtained by axial rotation of at least one of the longitudinal bar and the crossbar considered or by a relative pivoting between the longitudinal bar and the associated crossbar.

In the first case, with axial rotation, the user rotates each bar vertically around its axis and then seals at least two to at least one end without must seal the horizontal bars, prisoners of the vertical bars, or it turns each bar horizontal around its axis to position angularly said lateral relief axially opposite the abutment surface of the female coupling section. In the second case, pivotally, the user assembles the bars according to a lattice forming mesh having the angle initial phase allowing the desired assembly between the bars, example of lozenges, then he deforms the lattice in his plan for the meshes to take the form intended for perform the desired locking, for example rectangles. In this case, only a minimum of points sealing to maintain the coupling. In the case of a grid sealed in the thickness of a wall, that is to say stumbling on it as soon as we try to change the form, all that is needed is a single anchor, since rectangular grid tightly framed by a rim rigid opening can not therefore be transformed into a non-rectangular parallelogram.

Preferably, to lock the bars vertical position in one direction and the other, the shoulder is turned away from another shoulder, arranged to cooperate with another abutment surface forming part of abutment means.

In one embodiment, the coupling hole has a non-circular passage template with a recess to which is substantially adjusted a protuberance of the transverse profile of the bar longitudinal, except that the solidarisation has a recessed profile, limiting the bottom of a notch whose first edge is the said shoulder, the recessed profile existing over a length axial notch determined and being shaped provided for allow axial rotation of the male section so that the shoulder comes out of the jig passage.

Just turn a single bar horizontal around its axis to lock all vertical bars. As explained below, this rotation axis of the longitudinal bar equals a tilting of the set of crossbars around this longitudinal bar.

The notch preferably has a second edge, constituting the second shoulder, separated from the first edge at least one said notch length corresponding to a length of the coupling hole, to form a pair of jaws able to trap axially two mouths opposite of the coupling hole by respectively the first and second edges. Locking in position, in this embodiment, is thus provided in both directions.

The securing notch can be separated axially into two sub-segments by a portion of a section having said protuberance, constituting an expected index to be received in a cavity in a wall of the coupling hole. The index thus ensures a lock bidirectional axial.

The securing and securing sections respectively coupling can for example have edges respectively threaded and tapped, on at least one sector angular, rack, respectively corresponding to the lateral relief and abutment means. Locking Bidirectional is distributed.

In this case, the clearance template with a elongate shape of size determined by two walls opposed having a specified maximum width of flattening and of which at least one carries a said sector rack, the securing section can present a lengthwise elongated cross-section reduced, however, having a length greater than said flattening width of the jig passage. The rotation of the longitudinal bar is thus limited to one angular sector, at one end of which it is engaged with the coupling hole, while it is free to a other end of the sector. It will be noted that, independently the choice of locking means in position, that is to say integrated in the bars according to the invention or under form of inserts such as pins, screws or ratchet through the wall of the coupling section for form a punch set in a lateral hole of the section of the fact that the clearance gauge is elongated, that is to say substantially elliptical or lenticular, with an extension direction according to substantially the axial direction of the crossbar considered, makes it possible to limit the necessary thickness of cross bars, that is to say, allows to keep a certain wall thickness at the cut transversal, which is for example a said coupling hole.

In one embodiment, the coupling holes respective two crossbars present between them a specular symmetry, so that the said rotation axial of the securing section, causing the exit of the shoulder off the clearance template, represents a relative shift in one direction from one of the two cross bars around the longitudinal bar, and represents a relative shift, in the opposite direction, of the other of the two crossbars.

Thus, in a particular case, it can be provided that, the respective holes, at a given height, bars cross-sections having been aligned, it is first necessary to the successive transverse bars respectively of a side and the other of the planned plane of the grid, that is to say that it has a lateral profile in V. Then, by pivoting according to a given angular sector in a plane perpendicular to the planned common plane, each bar cross-section is folded into the planned common plane, thus transforming the profile of "V" into an "I". Thereby, it is useless to seal the longitudinal bar, since is easy to predict that the two angular sectors of permitted pivoting for crossbars, two schematic types mentioned above, two branches of "V" in an "I", do not present a overlap only for the locking position, that is to say when crossbars occupy their folded position in the common plane. Each bar cross-section thus constitutes a lock for bars of the other type.

The clearance template may be intended to be gradually flattened by the misalignment of gauge direction of passage relative to the direction axis, following a said relative pivoting or a said rotation of the crossbar, until the clearance template does not fully enclose the shoulder.

In one embodiment, at least one pair of associated bars, longitudinal and transverse, is hermaphrodite, with respectively one said section of female coupling and a said male securing section. The mutual locking of the bars is thus better ensured.

The set of bars can in particular comprise two so-called pairs of hermaphrodite bars planned for to form a parallelogram presenting a pair of couplings of a first type, inverse of the first type, that is to say dual, according to a diagonal and a pair of couplings of a second type according to another diagonal. The mesh of Mutual locking of the bars is thus optimal.

The male section of a first longitudinal bar of this kind can be followed by another male stretch and the female section of a second longitudinal bar of this kind can be followed by another female stretch. it offers several possibilities for various montages of others bars.

A crossbar, that is to say, with holes coupling, can be provided to be mounted in position longitudinal coupling of the coupling hole with a cross-bar.

Such a bar is therefore versatile because it can be transversal, and thus offer a hole in coupling and stop but it can just as well serve spindle for another crossbar, that is to say have the function of a longitudinal bar. This bar versatile will therefore have a reduced section to be able to cross the hole of the associated crossbar, or well the crossbar actually will have a hole with elongated section according to the extension direction of this crossbar, and the multi-purpose bar will present then an elongated section of the same.

In another embodiment, the bars longitudinal and transverse bars have said cutouts distributed on two opposite sides of the bars.

Some of the longitudinal bars and transverse bars, preferably comprise end sections arranged to be sealed.

Note, however, that since the grid is generally held in position on the opening if this is the case of application, that is to say with for example three legs housed in cavities of the slice of the opening, it is not necessary that these legs are sealed, since the bars lock each other. It is also worth noting that, to the extent that the bars are closely coupled, it may be sufficient to seal only a final assembly pin-bar, if the opening walls prevent unplugging.

Some of the crossbars may present a folded conformation according to a decorative pattern determined size, with two coupling holes opposite and aligned, to be slipped on a single bar longitudinal, inserted between two transverse bars elongated each strung on the plurality of bars cross.

The user can thus successively patterns of different shapes, for example in a circle, diamond, heart, S or other, on each of the bars longitudinal, and thus customize its grid. In addition, these patterns constitute spacers between the bars elongate transversals and contribute to blockage in translation of the other cross bars on the bars longitudinal. Again, this form feature a crossbar is independent of the means, integrated or not, locking in position of the bars.

The invention also relates to a transverse bar for forming a set of grid elements according to the invention, characterized by the fact that it comprises a said first plurality of coupling sections each having a cross cut, receiving a bar longitudinal, associated with abutment means comprising an abutment surface provided to cooperate with a shoulder of the longitudinal bar.

The coupling section is preferably of the type female, the cutout being a transverse coupling hole having a clearance template adapted to be likely to ensure the free passage of a bar longitudinal when it forms an axis with a direction axis aligned with a clearance template direction defined by the coupling hole, the said cooperation of the stop surface being obtained by misalignment between axis directions and clearance gauge.

The invention finally relates to a longitudinal bar to form a set of grid elements according to the invention, characterized in that it comprises a said second plurality of securing sections with respectively a said second plurality of sections of coupling belonging to transverse bars presenting reception cuts, each joining section including a segment of solidarity, shape and length adapted to be received in a said cut, segment limited by a shoulder of a lateral relief of Axial positioning arranged to then be found axially opposite an abutment surface forming part of stop means belonging to the coupling section considered.

When the coupling section is of the female type and that the cut is a transverse coupling hole having a clearance template adapted to be likely to ensure the free passage of the bar longitudinal when it forms an axis with a direction axis aligned with a clearance template direction defined by the hole, each securing section is then of the male type and the shoulder is arranged for, by misalignment between the axis and jig directions of passage, coming axially opposite the abutment surface.

• les figures 1 et 2 représentent, respectivement en perspective et en vue de bout, un tronçon d'une barre dite longitudinale, selon la première forme de réalisation,
• les figures 3 et 4 représentent, respectivement en perspective et en vue de côté, un tronçon d'une barre dite transversale, de masquage d'ouverture, comportant un trou de passage de la barre longitudinale, et
• les figures 5 et 6 sont des vues de face d'une grille selon la seconde forme de réalisation, respectivement en cours de montage et après montage.

The invention will be better understood with the aid of the following description of two interesting embodiments of a grid according to the invention, with reference to the appended drawings, in which:

• FIGS. 1 and 2 show, respectively in perspective and in end view, a section of a so-called longitudinal bar, according to the first embodiment,
• Figures 3 and 4 show, respectively in perspective and in side view, a section of a transverse bar, opening masking, having a passage hole of the longitudinal bar, and
• Figures 5 and 6 are front views of a grid according to the second embodiment, respectively during assembly and after mounting.

Figures 1 to 4 show details of elements of coupling exposing the first embodiment of bars constituting a grid 1, serving as protection in this example, whose general appearance is represented on the Figures 5 and 6, which further expose the second form of production.

In general, grid 1 includes a first plurality of here two bars 2 and 3, said longitudinal, here identical and horizontal in this example and serving further here at anchor grid 1, and a second plurality of here two bars 4, 5, transversely extending, here orthogonal in final position (Fig. 6), compared at the longitudinal bars 2 and 3. The transverse bars 4, 5 are identical here and serve for masking a opening, not shown, whose excessive height forbidden to use only the two longitudinal bars 2 and 3, or whose excessive width would require bars longitudinal 2, 3 too long and therefore easy to dismiss mutually. In this example, the bars or bars 2 to 5 are rectilinear. It can be expected that the sections ends of the longitudinal bars 2, 3 have a Forked or other form of seal, not drawn, for to better anchor.

Note also that, as the anchor requires that one of the two sets of bars 2, 3 and 4, 5 is more long as the corresponding dimension of the opening protected and that the other series of bars is shorter than the other dimension of the opening if the grid 1 extends next to the edge of the opening, we could consider that it is the crossbars that are anchored, in particular in a case for which they would be few, for example as here in the number of two. The longitudinal bars 2, 3 would then be used to maintaining the desired pitch between masking bars 4, 5. In in short, the anchor function is independent of the way to assemble the various bars 2 to 5.

Returning to the first embodiment, the FIGS. 1 and 2 show a joining section 21 of the longitudinal bar 2 with the cross bar 4. The longitudinal bar 2 presents, in this example, a cross-section of substantially elliptical shape, or lenticular, that is to say, vertical oval around an axis geometric extension 20, here therefore horizontal, limited by two faces of small opposite planes sides 26 and 27, so-called upper and lower, and by two long sides or opposed curved faces 28 and 29, respectively back and front in Figure 1. The face upper 26 is thus limited by two edges upper longitudinal members 268 and 269, respectively back and front, while the underside 27 is limited by two lower longitudinal edges 278 and 279, respectively say back and front.

The upper edge before 269 has a notch 24 with a substantially planar bottom 241, limited by two radial abutment flank surfaces 242 and 243, axially opposite and at a mutual distance defining a securing segment 22 corresponding to a value thickness of the crossbar 4. As shown Figures 1 and 2, the bottom 241 is inclined forwardly since substantially the upper rear edge 268.

Symmetrically with respect to the axis 20, the ridge lower rear 278 has a lower notch 25 (FIG 2) substantially identical to the notch 24, with a bottom 251, substantially parallel to the bottom 241, and two axially opposite thrust flanks 252 and 253.

Figures 3 and 4 show a coupling section female 41 of crossbar 4 with the stretch of fastening 21, the coupling section 41 comprising a coupling hole 42 with walls substantially parallel to a global geometric axis 42A, defining a direction of clearance template for the passage of the bar longitudinal 2, direction 42A here perpendicular to an axis geometric 40 extension, here so vertical, of the bar crossbar 4. The crossbar 4 presents here a cross-section of substantially oval shape, and precisely in this example, identical to the section of the longitudinal bar 2. The cross section of the bar transversal 4 is limited by two small flat surfaces opposite, 46 and 47, respectively rear and front, and two large curved surfaces opposite 48 and 49, respectively from right and left in FIG.

FIG. 4 represents the large right-hand surface 48, traversed by the coupling hole 42, the template of which general passage is mixed, that is to say that it corresponds to a superposition of two elementary passage templates mutually angularly offset. The first template of passage, of 42A1 geometric axis, allowing to skewer the crossbar 4 in an adjusted way, is identical to the substantially oval section of the longitudinal bar 2 (FIG 2), that is to say that it has an elongated shape, substantially in ellipse, approximately extension direction defined by axis 40, this shape elongated being here with axis of extension slightly inclined on this direction. The second jig of passage, axis geometric 42A2, is smaller, that is to say corresponds to the cross section of the segment of solidarisation 22, that is to say the first template of elementary passage but diminished by notches 24 and 25. The second passage template is generally of the same type of elongated shape substantially elliptical than the first clearance template and here it is extension axis perfectly parallel to the axis 40.

Thus, on the one hand, the general passage template is limited by a small upper surface 426, intended for receive axial sliding the upper face 26, and by two large concave surfaces respectively rear 428 and before 429, intended to receive axial sliding respective large faces 28 and 29. Precisely, the shape of the back surface 428 corresponds to that of the face rear 28 in the zone of segment 22, that is to say without the part of low surface that has disappeared because of the presence of the lower notch 25. Conversely, the shape of the front surface 429 only corresponds to the part high, of the front face 29, located, outside the segment 22, to the height of the upper notch 24. The surface upper 426 descends to the rear side 46, of an angle, compared to a normal to the axis 40, of about here 10 degrees.

On the other hand, the general passage template is limited by a large front surface 429A, with overall extension parallel to the vertical axis 40 in this example, intended for receive, as a lateral stop, the portion of the face before 29 located in the segment 22, that is to say axially at the notches 24 and 25. The front surface 429A is a complement of the surface before 429, their "sum" corresponding to the front face 29. The large area before 429A continues, to the front large area 429, by an oblique surface 424, intended to receive in look, with or without stop, the bottom 241 of the notch 24. A small lower surface 425 connects the bottom of the front surface 429A at the bottom of the back surface 428, rising at an angle corresponding to the slope of the bottom 251 of the lower notch 25.

As will be understood, the space between the virtual extension of the upper part of the front surface 429 (first elementary passage template) and the surface before 429A (second elementary passage template) is a kind of side pocket offering a game allowing lateral movement, here essentially by axial rotation, of the longitudinal bar 2 when the axial advance of the segment 22 brings the upper cavity 24 opposite the front surface 429, located above the pocket mentioned above. To perform the desired coupling, the longitudinal bar 2 serves as a pin by passing through sliding in the coupling hole 42, the axis 20 being then collinear with the axis 42A1. When sliding brings the securing segment 22 laterally into view of the wall surfaces of the coupling hole 42, the presence of the upper notch 24 causes the fact that the front face 429 no longer constitutes a lateral abutment, if although the longitudinal bar 2 can turn around its axis 20, until the front face 29 abuts, by its central and low parts, on the front surface 429A.

In this example, the rotation of the bar longitudinal 2 is accompanied by a translation of the axis 20 remaining horizontal, with forward descent for become collinear with the 42A2 axis. In the case of a application other, to constitute a mesh forming ladder intended to support for example the edges counterparts of a stack of shelves, i.e. application without risk of vandalism, this descent of the longitudinal bar when it locks is particularly interesting since gravity the will hold in place, so without need of sealing.

Precisely here, the rotation of the longitudinal bar 2 takes place substantially around the ridge connecting the rear surfaces 428 and lower 425. The flanks 242 and 243 then constitute a pair of jaws axially opposite which are opposite two mouth areas 48B, 49B respectively of the surfaces of right 48 and left 49, thus trapping the cross bar 4, that is to say the blocking in the corresponding axial position on the longitudinal bar 2. The rotation of the bar longitudinal 2 causes the flanks 252 and 253 of the lower notch 25 come out of the jig passage global, that is to say, fall below the level of the surface lower slope 425 and form a second pair of jaws having the same function as the first pair of jaws or fangs 242, 243 of axial abutment against both respective mouth surfaces 48B and 49B.

It should be noted that the above example includes a number of interesting features but however non-essential. Thus, the final position of the longitudinal bar 2, with axis 40 perpendicular to the axis 20, is only a special case.

Similarly, a single pair of jaws would suffice to bidirectional locking, that is to say that example, the longitudinal bar 2 could have a profile other, as if notch 25 extended over the entire length of the longitudinal bar 2, or the template of general passage could, correspondingly, be widened at the bottom.

In addition, the rotation of the axis 20 could, in variant, be free of lateral fall translation associated with this example or, on the contrary, be replaced by a simple lateral, horizontal and / or vertical.

Alternatively, the notches 24 and 25 may be globally replaced by a length notch less than the length of the coupling hole 42, which then, in addition to the desired crossing template, function of the notch over a certain axial length of the hole 42, an enlarged jig size on the rest of its length. In other words, the template of fitted passage, as described or its variants, may not wear only on a web, or rib, radial, protruding on the walls of the coupling hole 42.

In other variants, the notches 24 and 25 may be globally replaced by a dual relief, that is to say an index with radial extension coming to lodge, by rotation of the axis 20, in a lateral cavity or pocket constituting a radial groove in at least one of the front surfaces 429, 429A and rear 428. Notch 25, by example, can be omitted and segment 22 is split into two sub-segments, or two sub-notches respectively. The index is equivalent to two flanks, turned the opposite, belonging to two notches axially adjacent. Notch 24, thus double, thus having the index in any axial position, can then extend, from both sides of the index, on any axial length desired.

In the second embodiment, illustrated by Figures 5 and 6, the elements homologous to those of Figures 1 to 4 have retained their reference number, possibly preceded by the hundred or so 1. Explanations only useful for the differences that are here made. The coupling hole 142, or cut cross section, the coupling section 141 is here open laterally by an introduction slot 142F of width corresponding closely to the height of the section of the longitudinal bar 2, so that it is possible to assemble the various bars 2 to 5 by mutual plating. Specifically, the coupling hole 142 has a template of passage having substantially the shape of the section of the longitudinal bar 2 and the securing segment 122 belonging to the securing section 121, with however, the clearance gauge axis or direction 142A of the coupling hole 142 and also slot 142F, inclined at a certain angle, about 25 degrees, compared to a normal to the so-called vertical axis 40. Seen according to this inclined orientation, the template of passage presents, in height, a set of determined size, that is to say that the edges of the slot 142F constitute, in view according to the axis 142A, two opposite lateral jaw hooks 142B, 142C.

As a comparison of FIGS. 5 and 6 shows, the axis 20 of the longitudinal bar 2 is first aligned parallel to the axis 142A and the longitudinal bar 2 can thus be introduced laterally into the coupling hole 142 through the slot 142F. The set of bars 2 to 5 thus mounted forms a parallelepiped mesh, in diamond. Then a relative pivoting in their plane common, between the longitudinal bars 2, 3 and the bars 4, 5, to form a mesh rectangular, causes misalignment of the axis 20 by relative to the passage template axis direction 142A, this which brings two ends, of hook, diagonally opposite two jaws 142B and 142C facing two zones, respectively high and low of the front panel 128, grabbed and imprisoned.

The height clearance of the clearance template is canceled by the pivoting above. A low end of mouth right 148B, in the right face 148, then stops laterally on the underside 127 and one end high, diagonally opposite, left mouth 149B, in the left face 149, then stumbles laterally on the upper face 126. For, in this position, to block effectively, axially, the longitudinal bar 2, the face upper 126 has a shoulder lateral relief 126E, here in the form of a notch, and, alternatively, in the form of a protuberance. The shoulder 126E is intended to abut on the left mouth 149B, and the face lower 127 likewise has a shoulder notch 127E intended to abut on the mouth of the right 148B. The pair of jaws 142B and 142C here ensures both the Hold function of the longitudinal bar 2, by the ends of the jaws 124B and 142C laterally opposite, and the blocking function of the crossbar 4 in the desired axial position on the securing section 21 of the longitudinal bar 2, this by the base area of the jaws 142B and 142C which is located at the associated mouth 148B, 149B. The jaws 142B and 142C can therefore in fact be limited to two such fangs diagonally opposite each end of the coupling hole 142.

The relative movement pivot between the two games bars 2, 3 and 4, 5 thus causes pinching or flattening of the height of the jig of passage, which entails the setting in cooperation of the lateral elements of stop, that is to say, on the one hand, the mouths 149B and 148B with respectively the shoulders 126E and 127E and, on the other hand, the fangs 142B, 142C with large faces before 128 and back 129.

Alternatively, at least one pair 2, 4 bars associated, longitudinal and transverse, is hermaphrodite, with, in addition to the respective sections of joining 21 or 121 and coupling 41 or 141, respectively, a coupling section 41 or 141, female, and a said securing section 21 or 121, male.

The grid 1 can even include two such pairs 2, 4 and 3, 5 of hermaphrodite bars planned to form a parallelogram presenting a pair of couplings of a first type on a diagonal 42, 53 and a pair of couplings of a second type, inverse of the first type, according to another diagonal 43, 52. There is thus an inversion of male / female coupling, between the two bars considered, at the level of "junctions" 52 and 43.

The longitudinal bar 2 may thus comprise, at level of its junction (52) with the crossbar 5, a female section, similar to hole 41, followed by a section male (21) as described in detail, and the bar longitudinal axis 3 may comprise, opposite (53), a section male 21, securing with the crossbar 5, tracking (43) of a female section 41 as described.

Going to the left in Figure 6, the section male 21 ("junction" 142) of the longitudinal bar 2 can be followed by another male section (21), not drawn, and the female section ("junction" 43) of the longitudinal bar 3 can similarly be followed by another female stretch, no drawn. Such a configuration offers great freedom to add more bars 2 to 5.

In all embodiments, it can be provided an additional bar of transverse type, as the bars 4, 5, that is to say female with holes 142, to be mounted in longitudinal position, here horizontal, by coupling its coupling hole (s) 41 with one or more transverse bars 4, 5. The additional female bar, then having its holes spaced at the desired horizontal pitch, is thus skewed in parallel by all crossbars 4, 5 and thus locks them to the desired horizontal pitch.

As a variant of the second embodiment, the longitudinal bars 2, 3 may have, at the level of the fastening section 21, a lateral cavity profile substantially identical to that of the laterally open hole 142, to hold each other. It is thus formed of generally "C" profiles which fit together in mutually crossed position, at right angles or not. This is also valid for the first embodiment, with the lateral translation coupling mentioned above, although then a decoupling of the "U" allows only one sliding between bars, which would remain in the plane common, so without immediate disassembly. If the pivoting of locking is not provided, for example if the profiles are in "U" and not in "C", it is then necessary to seal the ends of the bars to keep them coupled by keeping in the grid plan 1. It may, however, interleaving, that is to say that the indentations or slots 142F of some of the bars 2 to 5 are then distributed on the two large faces 28, 29 or 148, 149, which prevents any exit from the common plane.

As a variant of one or other of the two forms of realization above, a rotation of the bar transverse 4 about its longitudinal axis 40 can be designed to pinch in width the template for the hole 42, 142, with the same provision for cooperation thrust reliefs.

Claims (23)

A set of gate elements (1), having a first plurality of longitudinal bars (2, 3) each comprising a second plurality of securing sections (21) with respectively a second plurality of coupling sections (41, 141) belonging to each other. to transverse bars (4, 5), characterized in that each coupling section (41, 141) has a transverse cutout (42, 142) and each securing section (21) comprises a securing segment (22, 122). ), of shape and length adapted to be received in the cutout (42, 142), segment (22, 122) limited by a shoulder (242, 243) of an axial positioning lateral relief (24, 25) arranged for then be axially facing an abutment surface (248B, 249B) forming part of abutment means belonging to the coupling section (41, 141) considered. An assembly according to claim 1, wherein the coupling section (41, 141) is of the female type, the cutout being a transverse coupling hole (42, 142) having a clearance template adapted to be likely to ensure the free passage of a bar longitudinal axis (2, 3) when forming an axis having a axis direction (20) aligned with a jig direction passing through (42A, 142A) defined by the hole (42, 142), each securing section (21, 121) being of type male and the shoulder (242, 243) being arranged for, by Misalignment between axis (20) and jig directions passage (42A, 142A), axially facing the thrust surface (248B, 249B). An assembly according to claim 2 wherein the respectively coupling sections (41) and fastening (21) are arranged so that the misalignment obtained by axial rotation of at least one of the longitudinal bar (2, 3) and cross bar (4, 5) considered or by relative pivoting between the bar longitudinal (2, 3) and cross bar (4, 5) associated. Assembly according to one of Claims 1 to 3, in which the shoulder (242, 243) is turned away from a another shoulder (243, 242), arranged to cooperate with a other abutment surface (249B, 248B) forming part of stop means. Assembly according to one of Claims 2 to 4, in which the coupling hole (42) has a template of non-circular passage, with a recess to which is substantially adjusted a protuberance of the profile cross-section of the longitudinal bar (2, 3), except for the fact that the securing segment (22) has a recessed profile, limiting the bottom of a notch a first edge (242, 243) constitutes the said shoulder, the recessed profile existing on a Axial length of notch determined and being of shape provided to allow axial rotation of the section of fastening (21) so that the shoulder emerges from the jig of passage. An assembly according to claim 5, wherein the securing notch (24, 25) presents a second edge (243, 242), constituting the second shoulder, spaced apart the first edge (242, 243) of at least one said length notch corresponding to a length of the coupling hole (42) to form a pair of jaws suitable for axially imprisoning two opposing mouths (248B, 249B) of the coupling hole (42, 142, respectively by the first edge (242) and the second edge (243). Assembly according to one of claims 5 and 6, in which the securing notch (24, 25) is separated axially into two sub-segments by a portion of a section comprising the said protuberance, constituting a index intended to be received in a cavity formed in a wall (428, 429, 429A) of the coupling hole (42). Assembly according to one of Claims 5 to 7, in which respectively securing sections (21) and coupling (41) have perimeters respectively threaded and threaded threads, on at least one angular sector, of rack, respectively corresponding to the lateral relief and the stop means. An assembly according to claim 8, wherein, the passage template having an elongated shape determined by two opposite walls (428, 429) presenting a fixed maximum of flattening width and of which at minus one carries a said rack sector, the stretch of fastening (21) has a cross-section of elongated shape of reduced size length greater than the said flattening width of the clearance template. Assembly according to one of Claims 5 to 9, wherein the respective coupling holes (42) of two transverse bars (4, 5) have between them a mirror symmetry, so that said axial rotation of the securing section (21), causing the output of the shoulder (242, 243) outside the clearance jig, represents a relative shift, in a given direction, of one of the two transverse bars (4, 5) around the longitudinal bar (2, 3), and represents a tilting relative, in the opposite direction, of the other of the two bars transversal (4, 5). Assembly according to one of claims 2 and 3 together, and possibly one of the claims 4 to 10, in which the passage template is intended to be gradually flattened by the misalignment of clearance gauge direction (42A) relative to the axis direction (20), following said relative pivoting or a said rotation of the crossbar (4, 5), up to what the passage template does not fully encompass the shoulder (242, 243). Assembly according to one of Claims 2 to 11, wherein at least one pair (2, 4) of associated bars, longitudinal and transverse, is hermaphrodite, with respectively a said coupling portion (41) female and a said securing section (21) male. An assembly according to claim 12, comprising two so-called pairs (2, 4 and 3, 5) of hermaphrodite bars intended to form a parallelogram showing a pair of couplings of a first type along a diagonal and a pair of couplings of a second type, inverse of the first type, according to another diagonal. An assembly according to claim 13, wherein the male section (21) of a first longitudinal bar (2) is followed by another male section (21) and the section female (41) of a second longitudinal bar (3) is followed by another female section (41). Assembly according to one of Claims 1 to 14, in which the longitudinal bars (2, 3) and the bars transversals (4, 5) have said cutouts (42, 142) distributed on two opposite sides of the bars (2, 3, 4, 5). Assembly according to one of Claims 2 to 15, wherein a said crossbar (5) is provided for be mounted in longitudinal position by coupling the hole coupling (41) with a transverse bar (4). Assembly according to one of Claims 1 to 16, wherein some of the longitudinal bars (2, 3) and the transverse bars (4, 5) comprise end sections arranged to be sealed. Assembly according to one of Claims 2 to 17, in which the passage template has a shape lengthened substantially along a direction of extension of the crossbar considered (4, 5). Assembly according to one of Claims 1 to 18, in which some of the transverse bars (4, 5) have a folded conformation in a pattern decorative pattern with two holes opposite and aligned coupling, to be slipped on a only longitudinal bar (2, 3) inserted between two elongated transverse bars (4, 5) each threaded on the plurality of longitudinal bars (2, 3). Crossbar (2, 3) for forming a set of grid elements (1) according to one of claims 1 to 18, characterized in that it comprises a said first plurality of coupling sections (41) each presenting a transverse cutout (42, 43), for receiving a longitudinal bar (2, 3), associated with abutment means comprising an abutment surface (248B, 249B) intended to cooperate with a shoulder of the longitudinal bar (2 , 3). Crossbar according to claim 20, in which which the coupling section (41) is of female type, the cutout being a transverse coupling hole (42, 43) having a clearance template adapted to be likely to ensure the free passage of a bar longitudinal axis (2, 3) when forming an axis having a axis direction (20) aligned with a jig direction passageway (42A, 142A) defined by the coupling hole (42, 142A), said cooperation of the abutment surface (248B, 249B) being obtained by misalignment between the directions axis (20) and clearance template (42A, 142A). Longitudinal bar (2, 3) for forming a set of grid elements (1) according to claims 1 to 19, characterized in that it comprises a said second plurality of securing sections (21) with respectively one said second plurality of coupling sections (41) belonging to transverse bars (4, 5) having receiving cutouts (42, 142), each joining section (21) comprising a securing segment (22), of shape and length adapted to be received in a said cut (42, 142) segment (22) limited by a shoulder (242, 243) of an axial positioning lateral relief arranged to be axially facing an abutment surface ( 248B, 249B) being part of abutment means belonging to the coupling section (41) in question. Longitudinal bar according to claim 22, in which, the coupling section (41) being of the type female and the cutout being a transverse coupling hole (42, 43) having a passage template adapted to be likely to ensure the free passage of the bar longitudinal axis (2, 3) when forming an axis having a axis direction (20) aligned with a jig direction passageway (42A, 142A) defined by the coupling hole (42, 142), each securing section (21) is of the type male and the shoulder (242, 243) is arranged for, for Misalignment between axis (20) and jig directions passage (42A, 142A), axially facing the stop surface 248B, 249B).

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