EP3443864A1 - Hinge, articulated device formed by or comprising at least one such hinge and method of manufacturing said hinge - Google Patents

Abstract

Hinge formed of four rectangular plates (1) having a thickness e, and notched at right angles in their thickness e and, for two of them, over part of their width to form two end edges (6, 7) , which are chamfered at 45 ° in opposite directions to form, perpendicular to the two large opposite faces (2, 3) of each plate (1), an isosceles trapezoidal surface (8) whose small and large bases have a length of respectively 2 times and 4 times the thickness e; first and second legs (10) being formed by joining two identical plates (1) with facing their indentations so that their isosceles trapezoidal surfaces (8) are in the same plane, each branch (10) thus having a notch ; the first and second branches (10) interlocking by their notches, forming a hinge, adapted to pass from a first position in which the branches (10) are applied to one another by their large faces (2) to form a set of thickness 2e, at a second position in which the legs (10) are arranged at 90 ° to each other.

Description

The present invention relates to a hinge, an articulated device formed by or comprising at least one such hinge and a method of manufacturing said hinge.

An earlier state of the art is represented by the French patent FR 2 351 623 . This patent describes a folding table having two hinge hinges, one under the table top, the other in its encroachment. Each of these hinges comprises two articulated branches, one having a central cut-out angle and the other coming to fit into this cutout, the recessed portion having a rounded shape. The Figures 31 to 33 of the accompanying drawing illustrate these two branches which will be described in more detail below.

As a result, when the two branches are folded against each other, the surfaces are not contiguous, which is detrimental to the aesthetic and has the disadvantage of allowing the introduction of foreign bodies.

Also, the two branches are of different shape, which complicates the manufacture, each branch being formed in one piece by the meeting of two rectangular plates which are arranged in the extension of one another but in parallel planes offset from each other and which are joined in their lower part by a connecting block having two opposite side walls which are rounded and which are each connected to the two longitudinal faces of the plates on the same side thereof.

Thus constituted a notch defined by the two edges opposite plates separated by a distance equal to two plate thicknesses, and arranged perpendicularly at right angles to the upper face of the connecting block, which forms the bottom of the notch.

The present inventor has sought to make the articulation of the hinge more solid and resistant, which will be demonstrated hereinafter with reference to the Figures 31 to 33 . He therefore sought a solution to manufacture in a simple and solid way a hinge with two movable legs between a position where they lie flat with flat surfaces without cavities, thus achieving the desired aesthetic, and a position where they are arranged crosswise, with 90 ° locking and possibly intermediate locking.

A shape of beveled branch of the hinge according to the invention has thus been discovered, which meets the aforementioned objectives and offers the additional advantage of allowing to achieve, also in a simple manner, the hinges with several interlocking grooves, further strengthening the strength hinge and allowing a very large number of possibilities for producing devices articulated to at least one such hinge, a list of examples of such devices being indicated below.

• quatre plaques dites plaques simples, chacune étant de forme générale rectangulaire avec une largeur l et une épaisseur e, et étant échancrée dans un angle, à angle droit, et dans toute son épaisseur e et, pour deux d'entre elles, sur une partie l1 de leur largeur l pour former deux chants d'extrémité et, pour deux autres d'entre elles, sur la partie l2 = l - l1 de leur largeur pour former deux chants d'extrémité ;
• les deux chants d'extrémité ainsi formés de chaque plaque simple étant biseautés à 45° dans des orientations opposées pour former, dans le plan perpendiculaire aux deux grandes faces longitudinales opposées de chaque plaque simple, une surface trapézoïdale isocèle dont les petite et grande bases ont une longueur de respectivement deux fois et quatre fois l'épaisseur e de la plaque simple ;
• chaque plaque simple pouvant se répéter au moins une fois - l'échancrure selon sa largeur pouvant être la même ou pouvant varier à chaque répétition - par accolement par ses petites faces longitudinales pour former des plaques dites multiples comportant une succession d'échancrures le long d'un de leurs bords transversaux ;
• une première et une deuxième branche simple ou multiple étant formées par accolement de deux plaques respectivement simples ou multiples identiques avec mise en regard des échancrures respectives de façon que leurs surfaces trapézoïdales isocèles respectives se situent dans un même plan en formant une surface hexagonale, chaque branche respectivement simple ou multiple présentant ainsi respectivement une encoche ou une succession d'encoches délimitées chacune par un fond ayant la surface hexagonale et latéralement par deux parties biseautées ;
• les première et deuxième branches simples ou multiples s'imbriquant par leurs encoches, formant ainsi une charnière, dite respectivement charnière simple et charnière multiple, apte à passer d'une première position dans laquelle les deux branches sont appliquées l'une sur l'autre par leurs grandes faces longitudinales pour former un ensemble d'épaisseur 2e, à une deuxième position dans laquelle les branches sont disposées de façon croisée dite à 90° l'une de l'autre ;
• des moyens pouvant être prévus pour bloquer les branches dans une position intermédiaire et/ou dans leur position à 90° ;
• chaque plaque simple, considérée comme formée de deux parties A et B accolées selon un plan parallèle aux petites faces longitudinales et se terminant par les chants d'extrémité biseautés pouvant se prolonger par une partie A ou B le long d'une petite face, pour former une plaque dite plaque composée de configuration ABA ou BAB, deux plaques ABA identiques ou deux plaques BAB identiques une fois accolées de la même façon que les branches simples ou multiples pouvant former des branches composées ABA ou BAB d'une charnière dite composée ayant les branches ABA et BAB;
• une charnière pouvant être formée à partir d'une combinaison de branches simples et/ou multiples et/ou composées.

The present invention therefore firstly relates to a hinge allowing the articulation between them of two nested branches one in the other to move from a position in which they are laid flat on one another to a position where they are arranged in a cross, characterized in that it is formed from:

• four plates called simple plates, each being of generally rectangular shape with a width l and a thickness e, and being indented at an angle, at right angles, and throughout its thickness e and, for two of them, on a part l1 of their width l to form two end edges and, for two others of them, on the part 12 = l - l1 of their width to form two end edges;
• the two end edges thus formed of each single plate being bevelled at 45 ° in opposite orientations to form, in the plane perpendicular to the two large opposite longitudinal faces of each single plate, an isosceles trapezoidal surface whose small and large bases have a length of respectively two times and four times the thickness e of the single plate;
• each single plate can be repeated at least once - the indentation by its width may be the same or may vary at each repetition - by joining by its small longitudinal faces to form said multiple plates having a succession of indentations along one of their transverse edges;
• a first and a second single or multiple branch being formed by joining two identical single or multiple identical plates with facing the respective indentations so that their respective isosceles trapezoidal surfaces are located in the same plane forming a hexagonal surface, each branch respectively single or multiple and respectively having a notch or a succession of notches each delimited by a bottom having the hexagonal surface and laterally by two bevelled portions;
• the first and second single or multiple branches interlocking by their notches, thus forming a hinge, respectively called single hinge and multiple hinge, capable of passing from a first position in which the two branches are applied to one another by their large longitudinal faces to form a set of thickness 2e, at a second position in which the branches are arranged crosswise said 90 ° from each other;
• means which can be provided for locking the branches in an intermediate position and / or in their position at 90 °;
• each simple plate, considered as formed of two parts A and B contiguous in a plane parallel to the small longitudinal faces and ending in the bevelled end edges that can be extended by a portion A or B along a small face, for to form a so-called plate composed of plate ABA or BAB configuration, two identical ABA plates or two identical BAB plates once contiguous in the same way as the single or multiple branches that can form ABA or BAB composite branches of a so-called compound hinge having the ABA and BAB branches;
• a hinge that can be formed from a combination of simple and / or multiple and / or composite branches.

Unlike the device according to the French patent FR 2 351 623 45 ° bevelled edges allow the connecting block to have a central length of 4e, thus allowing a marked strengthening of the hinge compared to that of the aforementioned French patent. Moreover, the small longitudinal sides of the hinge being in the same plane once the branches applied against each other do not include a vacuum as is the case of the front hinge, in which the inner edge of a notch of a branch is separated from the rounded portion of the connecting block of the other branch.

According to a particular embodiment of the hinge according to the invention, a semi-cylindrical groove opening at the center of the large base of each isosceles trapezoidal surface is formed on the corresponding large longitudinal face of each single or multiple plate or composite in the width direction, the semi-cylindrical grooves being placed opposite to constitute a cylindrical passage during the formation of a single or multiple branch or composite, said hinge having an axis of rotation disposed in said cylindrical passage.

Advantageously, the indentations of the single or multiple plates or composed according to their width may be the same, namely l1 - l2.

The single or multiple or compound branches may each be formed by two plates bonded together, or at least one of them may be integrally formed.

Single or multiple or compound branches may be flat or curved.

At least one simple or multiple or composite plate may have, in its region opposite to the notch formed in its thickness, means for joining a structural element or is capable of allowing the joining of a structural element.

Outside the articulation region, a single or multiple plate or compound may have a configuration allowing it to be joined with at least one element of an articulated device in which the hinge is intended to be integrated.

The two plates of the same branch can be of a different length.

The hinge according to the invention may comprise locking means in translation of the axis of rotation.

The locking means in an intermediate position or in the 90 ° position may be constituted by a threaded portion of the axis of rotation, which projects from one side of the hinge and is adapted to receive a screw nut in the desired position of branches.

The locking means in an intermediate position or in the 90 ° position may be constituted by a first arm, one end of which is fixed on one branch and by a second arm whose one end is fixed on the other branch, the two arms being articulated together at their other ends, a means for locking the arms in their desired relative position being provided.

The locking means in an intermediate position or in the 90 ° position may be constituted by a stirrup having the general shape of a U, with a bottom and two wings each formed of a V-shaped wall whose tip is turned towards the inside, thus forming two parts, said yoke being adapted to be positioned by its bottom against the small longitudinal faces of the two branches of the hinge and by its wings against two adjacent portions of branch whose angle corresponds to that of the two parts of the wings of the stirrup.

The hinge according to the invention may also comprise a reinforcing plate capable of being applied and fixed against the small longitudinal face of a branch, in its outer part, another reinforcing plate may be provided for the other branch.

A multiple or compound hinge may be formed from two respectively multiple or compound branches, one of which does not extend to one side beyond the hexagonal regions.

The present invention also relates to an articulated device formed by or comprising at least one hinge as defined above, and chosen in particular from the trivets, the furniture or parts of furniture, the shelves, the trestles, the chairs, the tables, doors, displays, turnstiles.

• dans une plaque de base, on forme deux fentes en biseau réunies par une fente rectiligne dans le cas de la formation d'une plaque simple, et une succession de deux fentes en biseau réunies par une fente rectiligne dans le cas de la formation d'une plaque multiple, de façon à former deux plaques respectivement simples ou multiples imbriquées ;
• dans le cas où un axe de rotation est prévu pour la charnière, on creuse un logement d'axe semi-cylindrique du côté des deux plaques imbriquées qui porte la grande base de la ou des surfaces trapézoïdales isocèles ;
• on applique l'une sur l'autre deux mêmes plaques imbriquées de façon à reconstituer deux branches imbriquées dont on solidarise pour chacune les deux plaques simples ou multiples,

où, dans le cas où un axe de rotation est prévu pour la charnière, on place ledit axe dans son logement cylindrique formé par les deux logements d'axe semi-cylindriques qui sont venus en regard l'un de l'autre, cette mise en place étant effectuée soit avant soit après la solidarisation précitée.The present invention also relates to a method of manufacturing a hinge as defined above, characterized in that:

• in a base plate, two bevelled slots joined by a straight slot are formed in the case of the formation of a single plate, and a succession of two bevel slots joined by a rectilinear slot in the case of the formation of a multiple plate, so as to form two plates respectively single or multiple nested;
• in the case where an axis of rotation is provided for the hinge, hollow a semi-cylindrical axis housing on the side of the two nested plates which carries the large base of the isosceles trapezoidal surfaces;
• the two same nested plates are applied to one another so as to reconstitute two nested branches, each of which is secured to the two single or multiple plates,

where, in the case where an axis of rotation is provided for the hinge, said axis is placed in its cylindrical housing formed by the two semi-cylindrical axis housing which have come opposite each other, this implementation being performed either before or after the aforementioned joining.

According to a first variant, the fastening is performed by screwing in the nesting region.

According to a second variant, the joining is effected by gluing, each of the plates having been previously glued in the nesting region, the gluing being carried out during the application of the nested plates one on the other.

To better illustrate the object of the present invention will be described below, by way of indication and not limited to several embodiments with reference to the accompanying drawing.

• la Figure 1 est une vue en perspective d'une plaque simple dont l'assemblage avec trois autres mêmes plaques permet de former une charnière simple selon l'invention, la plaque simple étant représentée sur cette figure avec sa grande face longitudinale comportant une rainure semi-cylindrique tournée vers l'avant ;
• la Figure 2 représente la plaque simple de la Figure 1 en perspective sous un autre angle, montrant, vers l'avant, sa grande face longitudinale opposée à celle comportant la rainure semi-cylindrique ;
• la Figure 3 représente la plaque simple de la Figure 1 vue de dessous, la région comportant la rainure semi-cylindrique se trouvant à gauche lorsque l'on regarde la figure ;
• la Figure 4 représente deux plaques simples de la Figure 1 vues de dessus en étant disposées espacées l'une de l'autre mais de façon que les rainures semi-cylindriques se trouvent en regard l'une de l'autre ;
• la Figure 5 représente les deux plaques simples de la Figure 4 appliquées l'une contre l'autre mais vues de dessous, les rainures semi-cylindriques rapprochées constituant alors un passage cylindrique ayant été omises, l'assemblage de ces deux plaques simples formant une branche de la charnière ;
• la Figure 6 est une vue correspondant à la Figure 5, les deux plaques simples appliquées l'une contre l'autre et formant ensemble une branche de la charnière étant vues de dessus ;
• la Figure 7 est une vue en perspective d'une charnière simple formée par deux branches telles que celle représentée sur les Figures 5 et 6 et imbriquées pour former une position croisée, dite à 90° l'une de l'autre ;
• la Figure 8 est une vue à plat d'une plaque dite double, montrant la face correspondant à la face avant de la plaque simple de la Figure 1, les rainures semi-cylindriques se trouvant à gauche lorsque l'on regarde la Figure ;
• la Figure 9 montre quatre plaques doubles identiques à celle représentée sur la Figure 8, disposées à plat l'une à côté de l'autre, ces quatre plaques étant destinées à former une charnière double ;
• la Figure 10 montre les quatre plaques doubles de la Figure 9, à plat, imbriquées l'une dans l'autre deux à deux, les rainures semi-cylindriques de deux plaques doubles imbriquées étant disposées dans le prolongement l'une de l'autre ;
• la Figure 11 est une vue analogue à la Figure 10 mais avec un axe introduit dans les quatre rainures semi-cylindriques de l'un des groupes de deux plaques doubles imbriquées, ces quatre rainures se trouvant dans le prolongement l'une de l'autre ;
• la Figure 12 illustre les deux groupes de deux plaques doubles imbriquées en position de basculement l'un sur l'autre pour constituer le passage cylindrique pour l'axe, et la charnière double à plat ;
• la Figure 13 montre la charnière avec les deux groupes de deux plaques doubles imbriquées à plat l'un sur l'autre, montrant une face opposée à celle comportant les rainures semi-cylindriques ;
• la Figure 14 est une vue montrant une face transversale de la charnière double, une telle vue pouvant également représenter une face transversale d'une charnière simple, dans la même position ;
• les Figures 15 et 16 sont des vues en perspective de la charnière double dans la position dite à 90°, suivant que l'on regarde d'un côté où l'on voit les régions biseautées ou d'un côté où l'on ne voit pas ces régions biseautées ;
• les Figures 17 et 18 sont des vues de dessus d'une charnière dont les branches sont cintrées, dans les positions respectivement à 90° et à plat ;
• la Figure 19 est une vue d'une structure pouvant faire office de dessous de plat, comportant deux charnières doubles selon l'invention, la structure étant représentée vue à plat ;
• la Figure 20 montre une position de la structure de la Figure 19 avec les charnières doubles dans une position à 90° laissant voir les parties d'une imbrication des plaques doubles ;
• les Figures 21 et 22 sont des vues analogues aux Figures respectivement 19 et 20 d'une structure de dessous de plat comportant une charnière triple selon l'invention ;
• la Figure 23 est une vue en perspective d'une structure de tréteau comportant deux charnières simples selon l'invention, la structure étant représentée dans une position à 90° de chacune des charnières simples ;
• la Figure 24 est une vue à échelle agrandie d'un détail de la Figure 23 ;
• la Figure 25 est une vue en perspective d'une chaise comportant deux charnières doubles selon l'invention, la chaise étant représentée dans une position inférieure à 90° de chacune des charnières doubles ;
• les Figures 26 et 27 sont à échelle agrandie des vues de détail de la Figure 25 ;
• la Figure 28 montre en perspective deux plaques dites plaques composées ;
• la Figure 29 est une vue de dessus montrant des plaques composées imbriquées deux à deux, prêtes à être basculées l'une sur l'autre pour former une charnière composée ;
• la Figure 30 montre en perspective la charnière composée ainsi obtenue avec ses deux branches composées ouvertes ;
• la Figure 31 est une vue de dessus analogue à la Figure 6 d'une branche de la charnière selon FR 2 351 623 ;
• la Figure 32 est une vue de face d'une branche de la charnière de la Figure 31 ; et
• la Figure 33 est une vue de dessus de la charnière selon FR 2 351 623 , la seconde branche de celle-ci étant imbriquée dans la branche des Figures 31 et 32.

On this drawing :

• the Figure 1 is a perspective view of a simple plate, the assembly of which with three other same plates makes it possible to form a simple hinge according to the invention, the simple plate being represented in this figure with its large longitudinal face having a semi-cylindrical groove turned forward ;
• the Figure 2 represents the simple plaque of the Figure 1 in perspective from another angle, showing, forwards, its large longitudinal face opposite to that comprising the semi-cylindrical groove;
• the Figure 3 represents the simple plaque of the Figure 1 view from below, the region having the semi-cylindrical groove to the left when looking at the figure;
• the Figure 4 represents two simple plates of the Figure 1 top views being arranged spaced from each other but so that the semi-cylindrical grooves are facing one another;
• the Figure 5 represents the two simple plates of the Figure 4 applied against one another but viewed from below, the semi-cylindrical grooves close together then forming a cylindrical passage having been omitted, the assembly of these two simple plates forming a branch of the hinge;
• the Figure 6 is a view corresponding to the Figure 5 , the two single plates applied against each other and together forming a branch of the hinge being seen from above;
• the Figure 7 is a perspective view of a simple hinge formed by two branches such as that shown on the Figures 5 and 6 and nested to form a cross position, said at 90 ° to each other;
• the Figure 8 is a flat view of a so-called double plate, showing the face corresponding to the front face of the simple plate of the Figure 1 , the semi-cylindrical grooves on the left when looking at the Figure;
• the Figure 9 shows four double plates identical to the one shown on the Figure 8 , arranged flat next to each other, these four plates being intended to form a double hinge;
• the Figure 10 shows the four double plates of the Figure 9 , flat, nested one in the other two by two, the semi-cylindrical grooves of two plates interleaved doubles being arranged in the extension of one another;
• the Figure 11 is a view similar to the Figure 10 but with an axis introduced into the four semicylindrical grooves of one of the groups of two interlocking double plates, these four grooves lying in the extension of one another;
• the Figure 12 illustrates the two groups of two double plates interlocked in tilting position one on the other to form the cylindrical passage for the axis, and the double hinge flat;
• the Figure 13 shows the hinge with the two groups of two double plates nested flat on one another, showing a face opposite to that comprising the semi-cylindrical grooves;
• the Figure 14 is a view showing a transverse face of the double hinge, such a view may also represent a transverse side of a single hinge, in the same position;
• the Figures 15 and 16 are perspective views of the double hinge in the so-called 90 ° position, depending on whether we look on one side where we see the bevelled regions or on one side where we do not see these beveled regions ;
• the Figures 17 and 18 are top views of a hinge whose branches are bent, in positions respectively at 90 ° and flat;
• the Figure 19 is a view of a structure that can serve as a trivet, comprising two double hinges according to the invention, the structure being shown seen flat;
• the Figure 20 shows a position of the structure of the Figure 19 with the double hinges in a 90 ° position revealing the parts of a double plate nesting;
• the Figures 21 and 22 are views similar to Figures 19 and 20 respectively of a trivet structure having a triple hinge according to the invention;
• the Figure 23 is a perspective view of a trestle structure comprising two simple hinges according to the invention, the structure being shown in a position at 90 ° of each of the single hinges;
• the Figure 24 is an enlarged view of a detail of the Figure 23 ;
• the Figure 25 is a perspective view of a chair having two double hinges according to the invention, the chair being shown in a position less than 90 ° of each of the double hinges;
• the Figures 26 and 27 are on a larger scale detailed views of the Figure 25 ;
• the Figure 28 shows in perspective two plates called compound plates;
• the Figure 29 is a top view showing compound plates nested in pairs, ready to be tilted over one another to form a composite hinge;
• the Figure 30 shows in perspective the composite hinge thus obtained with its two open compound arms;
• the Figure 31 is a top view similar to the Figure 6 of a branch of the hinge according to FR 2 351 623 ;
• the Figure 32 is a front view of a branch of the hinge of the Figure 31 ; and
• the Figure 33 is a top view of the hinge according to FR 2 351 623 , the second branch of it being nested in the branch of Figures 31 and 32 .

The various plates forming the hinges according to the invention can be made of wood, a hard plastic material, such as polypropylene, polyamide, composites, or a metallic material, such as steel, aluminum and aluminum. 'stainless steel.

If we refer to Figures 1 to 3 It will be seen that a so-called simple plate, which is rectangular in shape and planar, having a width l and a thickness e, has been designated as 1 as a whole. The two opposite large longitudinal faces of the single plate 1 bear the reference numerals 2 and 3, and its two opposite small longitudinal faces, the reference numerals 4 and 5.

The plate 1 presents, in a corner part (at the top right if we look at the Figure 1 ), a notch at right angles throughout its thickness e, and at half its width l, to form two end edges 6 and 7, which are chamfered at 45 ° in opposite orientations to form, in the median plane perpendicular to the two large opposite longitudinal faces 2 and 3 of the single plate 1, an isosceles trapezoidal surface 8 whose small and large bases have a length of respectively two times and four times the thickness e of the single plate.

A semi-cylindrical groove 9 is formed in the large longitudinal face 2, in the direction of the width of the the simple plate 1, opening, on the one hand, in the center of the large base of the isosceles trapezoidal surface 8 and, on the other hand, in the small longitudinal face 4. Its role is indicated below.

If we now turn to Figures 4 to 6 it can be seen that there is illustrated the approximation between two simple plates 1 to form a branch 10 of a simple hinge Cs.

Thus, the two single plates 1 are placed facing each other and applied against each other so that the two semicircular grooves 9 form a passage P (not shown on FIG. Figures 5 and 6 but that we can see on the Figure 7 which will be described below).

Simple plates 1 made of wood or metal, can be obtained by machining. Single plastic plates can be obtained by injection molding or 3D printing.

The two single plates 1 are secured by gluing. Thus is formed a branch 10.

It could also be provided to directly cut a branch 10 in a block of wood or metal by a machining operation, or to obtain a branch 10 of plastic by injection molding or 3D printing.

If we refer to the Figure 7 it can be seen that a simple hinge (Cs) has been formed by interlocking two branches 10 one inside the other so that the faces 4 of one are in the same plane as the faces 5 of the other and that the passages P of each of the two branches 10 are in the extension of one another. An axis of rotation will then be introduced into the passage P as will be described below.

The simple hinge Cs thus formed can pass from a position in which the branches 10 are applied against each other, forming a flat structure (as can be seen in FIG. Figure 14 which will be described below) at the position of the Figure 7 , for which the branches 10 intersect at 90 °.

We can now compare the hinge Cs just described with the hinge CsA of FR 2 351 623 , as shown on the Figures 31 to 33 .

On these Figures 31 to 33 the same reference numerals with the suffix A denote the parts of the hinge CsA which are equivalent to those of the hinge Cs.

Thus it can be seen that the two edges 6A of the same branch 10A are separated by a distance equal to twice the thickness of the plates 1A. This distance is to be compared with the maximum distance of 4e which separates the two bevels 6 of a branch 10 of the hinge Cs according to the invention. This results in a much greater resistance of the hinge Cs according to the present invention.

Also, if we look at the Figure 33 it can be seen that the edges 6A and 7A are not joined when the two branches 10A of the CsA hinge are applied against each other as is the case when we look at the Figure 14 , realizing both the aesthetics and better operation of the hinge, foreign bodies or dust can not be introduced into the spaces between the songs 6A and 7A.

If we refer to Figures 17 and 18 it can be seen that there is shown another embodiment of a simple hinge, namely a simple hinge C's whose branches 10 'are bent, the Figure 17 showing the branches 10 'cross and the Figure 18 , the branches 10 'applied to one another.

The hinges of the Figure 7 and Figures 17 and 18 once the branches 10 or 10 'open, can serve as a trivet, which can be folded with the legs 10 or 10' flat on one another for storage.

If we now turn to Figures 8 to 12 it can be seen that 11 has been designated as a whole a double plate which corresponds to two simple plates 1 contiguous to the face 5 of one against the face 4 of the other so that the semi-cylindrical grooves 9 are in line with one another.

A double plate 11 can be obtained by machining a block of wood or metal or by injection molding or 3D printing.

The elements of a double plate 11 corresponding to those of a single plate 1 have been designated in the figures by reference numerals each time greater than 10. Thus, the double plate 11 has two large longitudinal faces 12 and 13 and two small longitudinal faces 14 and 15, two semi-cylindrical grooves 19, two beveled end edges 16 and two bevelled end edges 17.

The Figure 9 shows four double plates 11 whose assembly will form a double Cd hinge, as will be described with reference to Figures 14 to 16 .

We will now describe an original process for forming such a double Cd hinge.

• On part de deux plaques de base Pb, rectangulaires, telles que représentées sur la Figure 10. Ces plaques Pb sont en bois, métalliques ou en matière plastique.

This process is as follows:

• We start from two rectangular Pb base plates, as represented on the Figure 10 . These Pb plates are wood, metal or plastic.

• une première fente en biseau F1 dont les bords sont perpendiculaires aux grandes faces longitudinales de la plaque Pb ;
• une fente F2 parallèle à ladite petite face longitudinale ;
• une fente en biseau F3 dont les bords sont perpendiculaires aux grandes faces longitudinales de la plaque Pb ;
• une fente F4 parallèle à la fente F2 ;
• une fente en biseau F5 dont les bords sont perpendiculaires aux grandes faces longitudinales de la plaque Pb ;
• une fente F6 parallèle aux fentes F2 et F4 ; et
• une fente en biseau F7 dont les bords sont perpendiculaires aux grandes faces longitudinales de la plaque Pb et débouchant dans l'autre petite face longitudinale de la plaque Pb.

In each plate Pb, slots are formed in the thickness of said plate Pb and from a small longitudinal face thereof:

• a first slot bevel F1 whose edges are perpendicular to the large longitudinal faces of the plate Pb;
• a slot F2 parallel to said small longitudinal face;
• a beveled slot F3 whose edges are perpendicular to the large longitudinal faces of the plate Pb;
• a slot F4 parallel to the slot F2;
• a beveled slot F5 whose edges are perpendicular to the large longitudinal faces of the plate Pb;
• a slot F6 parallel to the slots F2 and F4; and
• a beveled slot F7 whose edges are perpendicular to the large longitudinal faces of the plate Pb and opening into the other small longitudinal side of the plate Pb.

Each of the bevel slots F1, F3 and F5 form, on either side thereof, a bevelled end edge 16 and a bevelled end edge 17 similar to the edges 6 and 7 of the embodiment respectively. just described.

Furthermore, a semi-cylindrical groove R is formed, on the same large longitudinal face, from a small longitudinal face to the other, as can be seen on the Figure 10 . There are thus formed four semi-cylindrical grooves 19.

It can therefore be seen that the slots F1 to F7 described above make it possible to form, in each base plate Pb, two double plates 11 nested one inside the other.

The portions of each of the two base plates Pb are then glued in the nesting regions of their double plates 11, in the faces 12 comprising the grooves 19.

Then, as we can see on the Figure 11 , an axis of rotation A is placed in the grooves 19 in alignment with one of the base plates Pb having been cut as indicated above but with its two double plates 11 in the interleaved state.

Then, as we can see on the Figure 12 the cut and glued Pb plates are folded at the indicated locations, which will make it possible to make the collages to constitute directly the double hinge Cd with its two nested branches 20, as can be seen on the Figure 15 with the two branches 20 arranged in a cross, or seen between two faces 12 ( Figure 15 ), seen between two faces 13 ( Figure 16 ).

When folded, the hinge Cd is flat ( Figures 13 and 14 ).

On the Figure 14 the reference numerals referring to a simple hinge Cs have also been noted because the flat side views of the single and double hinges of the same plate length are the same.

It will also be noted that the method which has just been described for double plates is also suitable for single plates and for triple plates, etc. It suffices to start from base plates able to form simple plates, triples, etc. in the nested state.

To form multiple hinges, it would also be possible to form simple hinges that would be joined by the small longitudinal faces or by interleaving double plates 11, triple, etc. so as to constitute the axis passage.

The double hinge shown on the Figure 15 can be used as a trivet in the same way as the hinges of Figures 7 and 17/18 .

If we refer to Figures 19 and 20 it can be seen that there is shown a structure 100 having two double hinges Cd, arranged at a distance from one another.

The two double hinges Cd are represented flat views on the Figure 19 their axes being arranged in the extension of one another. The Figure 20 shows a position of the structure 100 with the hinges Cd in the open state.

Each of the double plates 11 composing a hinge Cd has opposite the actual articulation part a notch 101 'for the introduction of transverse rods 101. The axes are fixed by end pieces 102.

• une position dans laquelle les deux charnières Cd sont mise à plat (Figure 19) ;
• une position dans laquelle les charnières Cd sont ouvertes et bloquées dans cette position avec leurs axes disposés horizontalement et le dispositif 100 repose sur quatre pieds formés par quatre extrémités des plaques 11, deux appartenant aux deux branches respectives 20 d'une charnière Cd et deux appartenant aux deux branches respectives 20 de l'autre charnière Cd ; et
• une position correspondant à la précédente mais dans laquelle le dispositif 100 a été retourné pour que les axes des charnières soient verticaux.

The structure 100 may constitute a trivet at three positions in height, namely

• a position in which both Cd hinges are flat ( Figure 19 );
• a position in which the hinges Cd are open and locked in this position with their axes arranged horizontally and the device 100 rests on four feet formed by four ends of the plates 11, two belonging to the respective two branches 20 of a hinge Cd and two belonging at the two respective branches 20 of the other hinge Cd; and
• a position corresponding to the previous but in which the device 100 has been turned so that the axes of the hinges are vertical.

On the Figures 21 and 22 a triple hinge Ct formed from two branches 30 made according to the same principle as the branches 20 of the hinges Cd is shown. In these figures reference numerals 22, 23 and 27 indicate the elements similar to the elements 12, 13 and 17 of the branches 20.

This triple hinge can serve as a trivet in three positions, namely a flat position of the Figure 21 a position in which the axis of the hinge is disposed horizontally and is locked with its two arms crosswise, and a position in which the axis of the hinge is arranged vertically.

On the Figure 23 there is shown a structure 100 'which differs from the structure 100 in that the bars 101 extend each on the same side to form four feet 103 and that the hinges are simple hinges Cs.

Each axis A has a threaded end on which can be screwed a butterfly screw 102 '.

It can be noted here that a simple plate of the device of the Figure 23 differs from the simple plate 1 of the Figure 1 by the fact that the notch was made in the right corner down instead of upstairs if we look at the Figure 1 .

There is provided a hinge locking member 102 "when it is fully extended, this locking member 102" consists of two arms each hinged at one end to a branch 10 of one of the two hinges Cs (the hinge high on the hinge). Figure 23 ), more precisely on neighboring single plates (plates 1 on the Figure 23 ), these two arms being hinged at their free ends with the possibility of locking the two arms when in alignment with each other, maintaining the hinge Cd, and thereby the entire device.

On the Figures 25 to 27 it can be seen that a chair 200 is shown having two double hinges Cd, the axes of the two double hinges being arranged horizontally in the extension of one another. The plates of one of the branches 20 of each hinge extend on either side to form a rear leg 201 and an armrest 202, and the plates of the other leg 20 extend on either side to form another foot (the front foot) 203 and a border bar 204 of a back of the chair.

The two rear legs 201 are joined by a cross member 205 and the two front feet 203, by a cross 206.

The two edge bars 204 are joined by three cross members 207.

The two armrests are joined by an axis 208 of tilting of a seat S.

On either side of each of the branches 20, in the nesting part of the double plates are arranged reinforcing pieces 209 bolted at 210.

The spacing of the branches 20 of each of the double hinges Cd is here chosen less than 90 ° and is fixed by two identical stirrups 211.

Each stirrup 211 has the general shape of a U with a bottom 212 and two wings each formed of a wall having a V-shaped profile whose tip is turned inwards, thus forming each two parts 213a, 213b.

The bottom 212 of each stirrup 211 is placed against the inner reinforcing piece 209 associated with a hinge Cd. The wings are placed with their parts in V against two adjacent respective double plates in the outside part at the hinge Cd. It is thus seen that at each desired spacing is associated a stirrup with a corresponding angle of opening of the wings in V.

If we refer to Figures 28 to 30 it can be seen that another embodiment of the hinge according to the invention has been shown.

On the Figure 28 two so-called composite plates are shown, each formed from a single plate which would have been defined in two parts A and B separated by a plane parallel to the small longitudinal faces 4 and 5 and which would have been extended on one or the other of these small faces either by a part A, or by a part B, to form a compound branch called respectively ABA or BAB. Part A has the bevelled end edge 7 and part B, the bevelled end edge 6.

On the Figure 29 , at the top, two BAB and ABA nested plates have been shown, intended to tilt (as on the Figures 10 or 11 and 12 ) on two nested plates ABA and BAB shown in the lower part of the Figure, to form a so-called hinge composed with two branches ABA and BAB, which can be seen on the Figure 30 . The ABA branch is formed of two ANA plates contiguous to form the two hexagonal central regions and the BAB branch is formed of two BAB plates contiguous to form a central hexagonal region, which is disposed between the two previous in the final composite hinge.

Claims (15)

Hinge allowing the articulation between them of two branches (10; 10 ';20; 30) nested one inside the other to pass from a position in which they are laid flat on one another to a position in which they are arranged in a cross, characterized in that it is formed from: four plates called simple plates (1), each being of generally rectangular shape with a width l and a thickness e, and being indented at an angle, at right angles, and throughout its thickness e and, for two of them, on a part l1 of their width l to form two end edges (6, 7) and, for two others of them, on the part 12 = l - l1 of their width to form two end edges (6 , 7); the two end edges (6, 7) thus formed of each single plate being bevelled at 45 ° in opposite directions to form, in the plane perpendicular to the two large opposite longitudinal faces (2, 3) of each single plate (1 ), an isosceles trapezoidal surface (8) whose small and large bases have a length of respectively two times and four times the thickness e of the single plate (1); each single plate (1) being able to be repeated at least once - the notch according to its width being able to be the same or varying with each repetition - by joining by its small longitudinal faces (4, 5) to form so-called multiple plates ( 11) having a succession of indentations along one of their transverse edges; a first and a second single branch (10; 10 ') or multiple (20; 30) being formed by joining together two identical single plates (1) or multiple (11) identical with facing the respective indentations so that their isosceles trapezoidal surfaces (8) are located in the same plane forming a hexagonal surface, each branch respectively simple (10; 10 ') or multiple (20; 30) and respectively having a notch or a succession of notches each delimited by a bottom having the hexagonal surface and laterally by two bevelled portions; the first and second simple branches (10; 10 ') or multiple (20; 30) interlocking by their notches, thus forming a hinge, respectively called simple hinge (Cs; C's) and multiple hinge (Cd; Ct), suitable to move from a first position in which the two branches (10; 10 ';20; 30) are applied to one another by their large longitudinal faces (2; 12; 22) to form a thickness unit 2e, at a second position in which the branches (10; 10 ';20; 30) are arranged so cross-referenced as 90 ° from each other; means which can be provided for locking the branches in an intermediate position and / or in their position at 90 °; each single plate (1), considered to be formed of two parts A and B contiguous in a plane parallel to the small longitudinal faces (4, 5) and ending with the bevelled end edges (7, 6) being able to be extended by a part A or B along a small face, to form a plate called plate composed of ABA or BAB configuration, two identical ABA plates or two identical BAB plates once contiguous in the same way as the single or multiple branches that can form branches ABA or BAB compound of a so-called composite hinge having branches ABA and BAB; a hinge that can be formed from a combination of simple and / or multiple and / or composite branches. Hinge according to Claim 1, characterized in that a semi-cylindrical groove (9; 19) opening at the center of the large base of each isosceles trapezoidal surface (8) is formed on the correspondingly large longitudinal side (2; 12; 22) of each single plate (1) or multiple (11) in the width direction, the semi-cylindrical grooves (9; 19) being confronted to constitute a cylindrical passage (P) during the formation of a respectively single (10; 10 ') or multiple (20; 30) branch or compound, said hinge having an axis of rotation (A) disposed in said cylindrical passage (P). Hinge according to one of claims 1 and 2, characterized in that the indentations of the single plates (1) or multiple (11) or composed according to their width are the same, namely l1 = l2. Hinge according to one of Claims 1 to 3, characterized in that the single (10; 10 ') or multiple (20; 30) or compound branches are each formed by two plates glued together, or at least one of them is formed in one piece. Hinge according to one of Claims 1 to 5, characterized in that the single (10) or multiple (20; 30) or compound limbs are flat or curved. Hinge according to one of Claims 1 to 5, characterized in that , apart from the hinge region, a single plate (1) or a multiple plate (11) or compound has a configuration allowing it to be joined with at least one element of the structure in which the hinge is intended to be integrated. Hinge according to one of claims 2 to 6, characterized in that it comprises translation locking means (102, 102 ') of the axis of rotation (A). Hinge according to one of claims 2 to 7, characterized in that the locking means in an intermediate position or in the 90 ° position are constituted by a threaded portion of the axis of rotation (A), which protrudes on one side of the hinge and is adapted to receive a nut (102 ') to be screwed into the desired position of the branches. Hinge according to one of claims 2 to 7, characterized in that the locking means (102 '') in an intermediate position or in the 90 ° position are constituted by a first arm, one end of which is fixed on a branch (10; 10 ';20; 30) and by a second arm whose one end is fixed on the other leg (10; 10';20; 30), the two arms being hinged together at their other ends, a means of arm locking in their desired relative position being provided. Hinge according to one of claims 1 to 7, characterized in that the locking means in an intermediate position or in the 90 ° position are constituted by a stirrup (211) having the general shape of a U, with a bottom (212) and two wings each formed of a V-shaped wall whose tip is turned inwards, thus forming two parts (213a, 213b), said stirrup (211) being adapted to be positioned by its bottom against the small longitudinal faces (4, 5; 14, 15) of the two branches (10; 10 ';20; 30) of the hinge and by its wings against two adjacent leg portions (10; 10 ';20; 30) whose angle corresponds to that of the two parts (213a, 213b) of the wings of the stirrup (211). Hinge according to one of claims 1 to 10, characterized in that it comprises a reinforcing plate (209) adapted to be applied and fixed against the small longitudinal face (4; 14) of a branch ( 10; 10 ';20; 30), in its outer part, another reinforcing plate (209) can be provided for the other leg (10; 10';20; 30). Hinge according to claim 1, characterized in that a multiple or composite hinge is formed from two respectively multiple or compound arms, one of which does not extend to one side beyond the hexagonal regions. Articulated device formed by or comprising at least one hinge as defined in one of claims 1 to 12, and chosen in particular from underplates, furniture or parts of furniture, shelves, trestles, chairs, tables , doors, displays, turnstiles. Process for manufacturing a hinge as defined in one of Claims 1 to 12, characterized in that : - in a base plate (Pb), two beveled slots (F1, F3) are formed by a straight slot (F2) in the case of the formation of a single plate (1), and a succession of two slots in a bevel (F1, F3, F5, F7) joined by a straight slot (F2, F4, F6) in the case of the formation of a multiple plate (11), so as to form two respectively single plates (1) or multiple (11) nested; in the case where an axis of rotation (A) is provided for the hinge, a semi-cylindrical axis housing (9; 19) is hollowed on the side (2; 12; 22) of the two nested plates which carries the large diameter base of the isosceles trapezoidal surface (8); the two same nested plates are applied to one another so as to reconstitute two nested branches (10; 20; 30) each of which is secured to the two single plates (1) or multiple plates (11), where, in the case where an axis of rotation (A) is provided for the hinge, is placed said axis (A) in its cylindrical housing formed by the two semi-cylindrical axis housing (9; 19) which came into look at each other, this implementation being performed either before or after the aforementioned solidarity. Process according to Claim 14, characterized in that the joining is carried out by screwing into the nesting region or is carried out by gluing, each of the plates having been previously glued in the nesting region, the bonding occurring during the application of the nested plates on one another.

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