EP0034078B1 - Multidirectional connecting system for structures - Google Patents

Multidirectional connecting system for structures Download PDF

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Publication number
EP0034078B1
EP0034078B1 EP81400104A EP81400104A EP0034078B1 EP 0034078 B1 EP0034078 B1 EP 0034078B1 EP 81400104 A EP81400104 A EP 81400104A EP 81400104 A EP81400104 A EP 81400104A EP 0034078 B1 EP0034078 B1 EP 0034078B1
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EP
European Patent Office
Prior art keywords
central body
connecting system
ears
axis
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81400104A
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German (de)
French (fr)
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EP0034078A1 (en
Inventor
Alfred Jean Schaff
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Individual
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Individual
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Publication date
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Priority to AT81400104T priority Critical patent/ATE10868T1/en
Publication of EP0034078A1 publication Critical patent/EP0034078A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/20—Joints and connections with indicator or inspection means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/34—Branched
    • Y10T403/341—Three or more radiating members
    • Y10T403/342—Polyhedral

Definitions

  • the invention relates to a multidirectional connection system for structures comprising a connection piece to which bars defining the structure are fixed according to the preamble of claim 1.
  • French patent 1,520,550 describes a hollow assembly device allowing the circulation of a fluid between concurrent elements.
  • the assembly node comprises a hollow central body on which the fins are fixed, along orthogonal longitudinal planes passing through the axis of the hollow body and through the center of the openings for the passage of the fluid.
  • the fins also extend on the transverse faces of the hollow body.
  • the tubes then have a single direction determined during the construction of the node by the relative positions of the opening of the central body, of the fixing hole in the fin and of the edge of the fin. There is no possibility to modify the angles between two crowns.
  • Another assembly device consists of a body in the form of a circular plate, one face of which carries segments of cylindrical rings.
  • the body can receive two forms of fins: one intended for connections in the plane of the plate comprising a stirrup extended by a tail used for fixing the structural elements; another intended for inclined connections on the plane of the plate comprising a circular sector, capable of cooperating with the faces of the central body, on which a tail is fixed obliquely.
  • Each fin is attached separately to the central body using bolts.
  • the fins determine a single direction of attachment of the structural elements.
  • the angle which the fins of one crown make with respect to the fins of the other crown is defined by construction and cannot be modified.
  • the invention aims to achieve a multidirectional connection system providing great flexibility of use and in the form of standardized elements.
  • the multidirectional connection system for structure according to the invention is characterized in that the central body can be separated into at least two parts, along a transverse plane, each of the parts carrying a ring of ears and in that the cooperating faces of the parts of the central body carry positioning means allowing angular offsets of one crown relative to the other.
  • the planes of the ears pass through the axis of the central body or intersect said axis.
  • the connecting piece 1 forms a node to which the bars 2 and 3 are connected defining the structure.
  • the connecting piece 1 comprises a central body 4 on which are fixed ears 5, 6 forming two superimposed rings 7 and 8.
  • the ears 5 of the crown 7 are angularly offset from the ears 6 of the crown 8.
  • the ears 5 of the crown 7 are of approximately rectangular symmetrical shape
  • the mean axis equidistant from the long sides intersecting the axis of the central body and the long sides of the ears 6 of the crown 8 form angles acute with the axis of the central body
  • the middle axis approximately equidistant from the two long sides intersects the axis of the central body at the same point as the middle axis of the ears 5 of the crown 7, which leads to the axes (lines of force of the bars of the structure) attaching to the ears can all be concurrent at a point on the axis of the nucleus.
  • the number of ears of each crown was arbitrarily chosen equal to 4 and the angular offset between the ears of each crown of 45 °.
  • the number of ears of each crown can be arbitrary, the number of ears of one crown not necessarily being equal to the number of ears of the other, and the angular offsets between the ears of each crown do not necessarily give an equidistant distribution of the ears around the central body.
  • FIGS. 2A and 2B comprises a central body separable into at least two parts 11 and 12.
  • Each of the parts carries at its periphery the ears which are either welded or have come directly from molding.
  • the cooperating faces 13 and 14 of the two parts of the central body carry means for angular positioning of a ring relative to the other.
  • part 15 of the ears of part 12 engages in slots 16 provided in the crown 11.
  • the central body parts carry, along their axis, a center hole and / or a bore 17 in which can be introduced a fixing piece, for example a bolt, allowing to block the two parts in the desired position.
  • Part 11 can have slots (shown in broken lines) similar to slots 16 at its upper part and receive another element 12.
  • the center holes and / or bores 17 materialize the axis of the central body and allow precise piercing of the ears.
  • FIG. 3A and 3C Another example of a two-part central body is shown in Figures 3A and 3C.
  • Part 18 has six ears and part 19 (Figure 3C) three ears.
  • Positioning means consisting for example of a lug 20 in the part 18 and of housings 21, allow different angular offsets depending on the use of the connecting piece.
  • the central body consists of two similar parts 22 and 23 (FIGS. 4A and 4B) on the lateral surface of which grooves 24 are provided parallel to the axis of the central body and which enter the body ( Figure 4C).
  • the grooves receive or position the bases 25 and 26 of the ears which are held there, for example by gluing, the body preferably being made of plastic.
  • the base surfaces 27 and 28 of the body parts carry a lug 29 and a housing 30 in the form of a coaxial half-crown. Seen from above, the lug and the housing ( Figure 4C) are arranged in a crown.
  • the body parts carrying the ears ( Figures 4D and 4E) are assembled, in known manner, to form a connecting piece. As previously described, the faces of the ears bear marks 31 facilitating by positioning a piercing range of the ears to receive the structural bars.
  • the central body is formed of at least two parts 32 and 33, each part carrying a peripheral groove 34 whose plane of symmetry is perpendicular to the axis of the central body.
  • the groove is wider at the bottom than at the surface of the body.
  • the bases of the ears 37 and 38 have shapes approximately complementary to those of the grooves with which they cooperate.
  • each part 32, 33 of the central body consists of two symmetrical or identical parts 39, 40. The maintenance of the parts relative to each other is obtained by the same means as those described in the preceding figures 7A to 7E which have two parts 41 and 42 in half-crown acting as lug and housing (figure 5D).
  • the parts When the parts are assembled, they define a groove 34 whose section is approximately T-shaped, the crossbar of the T being parallel to the axis of the central body and close to its axis.
  • the end pieces, such as the piece 39, have on their free face 43 a recess 44 coaxial with an axial bore 45.
  • the bases 35 and 36 of the ears 37 and 38 are presented on the pieces 40 assembled back to back and are held by the parts 39 during assembly of the connecting part.
  • the ears can move along the grooves in a plane passing through the axis of the central body or possibly make an angle with this axis and, when the bars are fixed, put themselves in the position of minimum effort.
  • FIGS. 6A and 6C show an embodiment in which the central body is formed of two symmetrical parts 46 and 47, each of the parts having a peripheral groove 48 of approximately rectangular section, the plane of symmetry of which is perpendicular to the axis of the central body , the bottom of the groove having a rib 49 wider at the surface than at the bottom and in particular of T section, the vertical bar of the T or foot being fixed on the bottom of the groove perpendicular to the axis of the central body, the crossbar of the T being parallel to the axis of the central body and flush with the edges of the groove.
  • the peripheral part of the rib carries at least one passage 50 of dimensions equal to the dimension of the groove bottom capable of letting through the base of the ears having a shape approximately complementary to the groove and its rib.
  • FIG. 6C shows in section an embodiment in which the rib is discontinuous and extends, for example, over two or four sectors of each part of the central body. Each of the sectors is separated from the next by a longitudinal wall 51 which ensures greater rigidity of the assembly during assembly.
  • this part comprises at least one yoke 53 crossed by a bore 54 which is brought into line with the bore of the pierced ear as a function of the data from the calculation of the application of forces.
  • the structure connecting bar 2 can be welded directly to this yoke or be maintained.
  • the fastener 52 carries, in the embodiment shown, a second yoke 55 with an axis perpendicular to that cooperating with the ear.
  • the yoke 55 can be pierced with a bore 56 passing through or not and which can receive a device allowing the irrigation by a fluid of the bar or also (FIG. 7A) sealed connection means 57 and corresponds with a drilling of the bar structure to ensure the passage of a cooling or heat transfer fluid.
  • FIG. 1 shows a connection node in which all the fixing parts 52 comprise connection means which are connected together by pipes 58 leading to a connection or distribution box 59, which is optionally connected to the source of fluid coolant for cooling or heating the structure.
  • the multidirectional connection system according to the invention makes it possible to use the structural bars for conveying fluids and in particular to have an effective fire fighting network by cooling the bars and by using minus a screed bore as a sprinkler device.
  • connection system is very numerous and in particular allow the realization of double curvature structures of two layers of variable thickness, such as used in static refrigerants, with or without influencing the Venturi effect, or dynamic, ridge shed type "Tile allowing great ease of transformation and can be fully assembled on the ground with all components and accessories (roofing, piping ).
  • the standardization of the connecting parts allows a reduction of the time periods between the moment of design and that of the delivery of the structure, it also allows a lower cost by the universality of the components of the structure.
  • the central body of the connecting piece is made of at least two superimposable parts, each of the parts carrying an earring 63, 64.
  • the part 64 has ears 58 whose planes are, according to the example, vertical.
  • the central body 59 carries housings 60 into which are likely to penetrate lugs 61 provided on one of the faces of the second ring of ears shown in FIG. 8B.
  • the housings provided on the two flat and parallel faces of the central body 59 allow the production of a connecting piece with three ear rings: a central ring 64 according to FIG. 8A and two rings, an upper 62 and a lower 63 as shown in Figure 8B.
  • the central crown 64 can be produced according to one of the examples of FIGS. 4A, 5A, 6A with removable ears.
  • the central body from which the ears 58 leave is cylindrical or polygonal and is pierced along its axis by a channel 65 at least partly of polygonal shape.
  • the part part shown in FIG. 8B is formed by a central body 66 from which leave ears 67 whose direction relative to the parallel planes of the central body makes an acute angle.
  • the central body is approximately frustoconical, the angle of the cone allowing an equal transmission of the traction or compression forces being exerted on the ears so that the point of concurrence of the forces is at the center O of the connecting piece.
  • This point 0 is located inside the part of the central body and corresponds to the point of competition of the forces of the middle crown of ears 64.
  • the frustoconical body carries, on its widest base, the pins 61 of shape corresponding to that of the housings 60 of the central crown 64, and along its longitudinal axis, a channel 68 of polygonal shape of section equal to that of channel 65 of crown 64.
  • the lateral surface of the central body is concave, which allows a reduction in the workpiece and a better distribution of the forces exerted at the end of the ears.
  • At least one part of the body is defined by a volume of revolution of circular or polygonal cross section whose generatrix is formed by at least one curve or a straight line or by a combination of curves and / or straight lines.
  • FIG. 9 is a top view of a central ring 64 and a lower ring 63.
  • the two parts of the connecting piece are joined together by a clamping means, such as a screw and nut passing through the axial channel 65, 68.
  • This axial channel possibly receives a positioning piece 69 of shape corresponding to that of the channel and maintaining the earrings in position relative to each other.
  • the positioning piece 69 reinforces the angular positioning device formed by the housings 60 and the pins 61.
  • the device 60, 61 is replaced by the positioning part 69.
  • the shape of the ears is provided so as to allow positioning of the structural bars which may have angular deviations a 1 , a 2 , b 1 , b 2 given relative to the mean axis of the ear a o , b o keeping the competition at the same point 0 located on the axis of the central body 14.
  • the ears of the central and lower and / or upper crowns can be enlarged to a limit corresponding approximately to the tangency of the neighboring edges 70, 71 of the ears of adjacent crowns 64, 63 and 62, 64.
  • This feature makes it possible to place the ears of the lower and / or upper crowns in the same plane as one or more ears of the central crown. If one does not wish to obtain a continuous positioning over 360 °, the ears of the lower and / or upper crowns can interpenetrate as shown in FIGS. 2A, 2B; 3A, 3B; 5A, 6A.
  • edges 72 of the ears of the lower 63 and upper 62 crowns can, at the limit, be parallel to the axis of the central part.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
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Abstract

A system for making spatial structures includes connecting pieces for attaching structural rods. The connection pieces include a central body whereupon two superimposed crowns of lugs are arranged, the lugs of one crown being angularly shifted with respect to those of the other crown. The middle axes of the lugs of the two crowns intersect in one same point situated on the axis of the central body. Such is the geometry of the lugs that they may be pierced in a certain zone as required according to the application contemplated, by using center holes for materializing the central body axis and a reference basis.

Description

L'invention concerne un système de liaison multidirectionnelle pour structures comprenant une pièce de liaison sur laquelle viennent se fixer des barres définissant la structure selon le préambule de la revendication 1.The invention relates to a multidirectional connection system for structures comprising a connection piece to which bars defining the structure are fixed according to the preamble of claim 1.

La conception et la réalisation d'une structure doit satisfaire à des conditions de stabilité :

  • - statique, afin que, quelle que soit la variation angulaire des lignes de force, celles-ci restent toujours concourantes en un point ; que les flux des contraintes ne rencontrent pas de discontinuités et que, dans les zones de concours, les contraintes soient dissipées dans la masse en évitant les phénomènes de concentration ;
  • - dynamique par la possibilité d'assembler isostatiquement les composants entre eux ;
  • - au feu, en remédiant à l'affaissement des caractéristiques mécaniques sous températures élevées par augmentation des épaisseurs et diamètres des éléments constitutifs.
The design and construction of a structure must meet stability conditions:
  • - static, so that, whatever the angular variation of the lines of force, these always remain concurrent at a point; that the stress flows do not encounter discontinuities and that, in the competition areas, the stresses are dissipated in the mass, avoiding the phenomena of concentration;
  • - dynamic by the possibility of isostatically assembling the components together;
  • - fire, by remedying the subsidence of mechanical characteristics at high temperatures by increasing the thicknesses and diameters of the constituent elements.

La construction des structures pose actuellement des problèmes au niveau des matériaux de construction, et notamment en ce qui concerne les pièces de liaison. Généralement ces pièces sont fabriquées spécialement et sont différentes selon leur place dans la structure. De telles contraintes aboutissent à un maintien élevé des prix de revient, à des temps de mise en oeuvre longs et à une grande difficulté de modification ou de récupération de structures existantes.The construction of structures currently poses problems in terms of construction materials, and in particular as regards the connecting parts. Generally these parts are specially made and are different depending on their place in the structure. Such constraints result in a high maintenance of cost prices, long implementation times and great difficulty in modifying or recovering existing structures.

Le brevet français 1 520 550 décrit un dispositif d'assemblage creux permettant la circulation d'un fluide entre éléments concourants. Le noeud d'assemblage comporte un corps central creux sur lequel sont fixées des ailettes, selon des plans longitudinaux orthogonaux passant par l'axe du corps creux et par le centre des ouvertures pour le passage du fluide.French patent 1,520,550 describes a hollow assembly device allowing the circulation of a fluid between concurrent elements. The assembly node comprises a hollow central body on which the fins are fixed, along orthogonal longitudinal planes passing through the axis of the hollow body and through the center of the openings for the passage of the fluid.

Les ailettes se prolongent également sur les faces transversales du corps creux. En face des ouvertures et sur les ailettes sont prévus des trous pour la fixation des tubes de structures dont l'extrémité est conformée pour s'adapter exactement sur les bords des ailettes et dans les ouvertures. Les tubes ont alors une direction unique déterminée lors de la construction du noeud par les positions relatives de l'ouverture du corps central, du trou de fixation dans l'ailette et du bord de l'ailette. Il n'y a aucune possibilité de modifier les angles entre deux couronnes.The fins also extend on the transverse faces of the hollow body. In front of the openings and on the fins are provided holes for fixing the structural tubes, the end of which is shaped to fit exactly on the edges of the fins and in the openings. The tubes then have a single direction determined during the construction of the node by the relative positions of the opening of the central body, of the fixing hole in the fin and of the edge of the fin. There is no possibility to modify the angles between two crowns.

Un autre dispositif d'assemblage, décrit dans le brevet français 2079817, est constitué d'un corps en forme de plaque circulaire dont une face porte des segments d'anneaux cylindriques. Le corps peut recevoir deux formes d'ailettes : une destinée à des liaisons dans le plan de la plaque comportant un étrier prolongé par une queue servant à la fixation des éléments de structure ; une autre destinée à des liaisons inclinées sur le plan de la plaque comportant un secteur circulaire, susceptible de coopérer avec les faces du corps central, sur lequel est fixé obliquement une queue. Chaque ailette est fixée séparément sur le corps central à l'aide de boulons.Another assembly device, described in French patent 2079817, consists of a body in the form of a circular plate, one face of which carries segments of cylindrical rings. The body can receive two forms of fins: one intended for connections in the plane of the plate comprising a stirrup extended by a tail used for fixing the structural elements; another intended for inclined connections on the plane of the plate comprising a circular sector, capable of cooperating with the faces of the central body, on which a tail is fixed obliquely. Each fin is attached separately to the central body using bolts.

Les ailettes déterminent une direction unique de fixation des éléments de structure. En outre, l'angle que font les ailettes d'une couronne par rapport aux ailettes de l'autre couronne est défini par construction et ne peut être modifié.The fins determine a single direction of attachment of the structural elements. In addition, the angle which the fins of one crown make with respect to the fins of the other crown is defined by construction and cannot be modified.

L'invention vise à la réalisation d'un système de liaison multidirectionnelle apportant une grande souplesse d'utilisation et se présentant sous forme d'éléments standardisés.The invention aims to achieve a multidirectional connection system providing great flexibility of use and in the form of standardized elements.

Le système de liaison multidirectionnelle pour structure selon l'invention, est caractérisé en ce que le corps central est séparable en au moins deux parties, selon un plan transversal, chacune des parties portant une couronne d'oreilles et en ce que les faces coopérantes des parties du corps central portent des moyens de positionnement permettant des décalages angulaires d'une couronne par rapport à l'autre.The multidirectional connection system for structure according to the invention is characterized in that the central body can be separated into at least two parts, along a transverse plane, each of the parts carrying a ring of ears and in that the cooperating faces of the parts of the central body carry positioning means allowing angular offsets of one crown relative to the other.

Selon des formes de réalisation, les plans des oreilles passent par l'axe du corps central ou coupent ledit axe.According to embodiments, the planes of the ears pass through the axis of the central body or intersect said axis.

Les explications et figures données ci-après à titre d'exemple permettront de comprendre comment peut être réalisée l'invention.

  • La figure 1 représente un système de liaison multidirectionnelle selon l'invention.
  • Les figures 2A et 2B sont des vues en élévation des deux parties d'une pièce de liaison, chaque partie portant une couronne d'oreilles.
  • Les figures 3A, 3B et 3C représentent une vue en élévation des deux parties d'une pièce de liaison permettant de choisir le décalage angulaire voulu entre les oreilles des deux couronnes.
  • Les figures 4A et 4C montrent une forme de réalisation de la pièce de liaison, le corps central présentant des rainures.
  • Les figures 5A à 5D montrent une autre forme de réalisation de la pièce de liaison.
  • Les figures 6A à 6C présentent une troisième forme de réalisation de la pièce de liaison.
  • Les figures 7A et 7B montrent une forme de réalisation d'une pièce de fixation d'un tube à une oreille.
  • Les figures 8A et 8B représentent des vues en élévation et en coupe partielle des deux parties d'une pièce de liaison selon une autre forme de réalisation.
  • La figure 9 est une vue de dessus de la pièce de liaison selon les figures 8A et 8B.
  • La figure 1 représente un système de liaison multidirectionnelle selon l'invention permettant la réalisation de structures spatiales.
The explanations and figures given below by way of example will make it possible to understand how the invention can be implemented.
  • FIG. 1 represents a multidirectional connection system according to the invention.
  • FIGS. 2A and 2B are elevation views of the two parts of a connecting piece, each part carrying an earring.
  • FIGS. 3A, 3B and 3C represent an elevation view of the two parts of a connecting piece making it possible to choose the desired angular offset between the ears of the two crowns.
  • Figures 4A and 4C show an embodiment of the connecting piece, the central body having grooves.
  • Figures 5A to 5D show another embodiment of the connecting piece.
  • Figures 6A to 6C show a third embodiment of the connecting piece.
  • FIGS. 7A and 7B show an embodiment of a part for fixing a tube to an ear.
  • FIGS. 8A and 8B show views in elevation and in partial section of the two parts of a connecting piece according to another embodiment.
  • Figure 9 is a top view of the connecting piece according to Figures 8A and 8B.
  • FIG. 1 represents a multidirectional connection system according to the invention allowing the realization of spatial structures.

La pièce de liaison 1 forme un noeud auquel sont reliées les barres 2 et 3 définissant la structure.The connecting piece 1 forms a node to which the bars 2 and 3 are connected defining the structure.

La pièce de liaison 1 comporte un corps central 4 sur lequel sont fixées des oreilles 5, 6 formant deux couronnes 7 et 8 superposées. Les oreilles 5 de la couronne 7 sont angulairement décalées des oreilles 6 de la couronne 8.The connecting piece 1 comprises a central body 4 on which are fixed ears 5, 6 forming two superimposed rings 7 and 8. The ears 5 of the crown 7 are angularly offset from the ears 6 of the crown 8.

Selon une forme de réalisation préférée : les oreilles 5 de la couronne 7 sont de forme symétrique approximativement rectangulaire, l'axe moyen équidistant des grands côtés coupant l'axe du corps central et les grands côtés des oreilles 6 de la couronne 8 font des angles aigus avec l'axe du corps central, l'axe moyen approximativement équidistant des deux grands côtés coupe l'axe du corps central au même point que l'axe moyen des oreilles 5 de la couronne 7, ce qui conduit à ce que les axes (lignes de force des barres de la structure) se fixant sur les oreilles peuvent être tous concourants en un point sur l'axe du noyau.According to a preferred embodiment: the ears 5 of the crown 7 are of approximately rectangular symmetrical shape, the mean axis equidistant from the long sides intersecting the axis of the central body and the long sides of the ears 6 of the crown 8 form angles acute with the axis of the central body, the middle axis approximately equidistant from the two long sides intersects the axis of the central body at the same point as the middle axis of the ears 5 of the crown 7, which leads to the axes (lines of force of the bars of the structure) attaching to the ears can all be concurrent at a point on the axis of the nucleus.

Le nombre des oreilles de chaque couronne a été arbitrairement choisi égal à 4 et le décalage angulaire entre les oreilles de chaque couronne de 45°. Dans cet exemple, comme dans ceux qui vont suivre, le nombre des oreilles de chaque couronne peut être quelconque, le nombre des oreilles d'une couronne n'étant pas nécessairement égal au nombre des oreilles de l'autre, et les décalages angulaires entre les oreilles de chaque couronne ne donnant pas obligatoirement une répartition équidistante des oreilles autour du corps central.The number of ears of each crown was arbitrarily chosen equal to 4 and the angular offset between the ears of each crown of 45 °. In this example, as in those which will follow, the number of ears of each crown can be arbitrary, the number of ears of one crown not necessarily being equal to the number of ears of the other, and the angular offsets between the ears of each crown do not necessarily give an equidistant distribution of the ears around the central body.

La réalisation des figures 2A et 2B comporte un corps central séparable en au moins deux parties 11 et 12. Chacune des parties porte à sa périphérie les oreilles qui sont soit soudées, soit venues directement de moulage. Les faces coopérantes 13 et 14 des deux parties du corps central portent des moyens de positionnement angulaire d'une couronne par rapport à l'autre. Selon une réalisation classique, une partie 15 des oreilles de la partie 12 s'engage dans des fentes 16 prévues dans la couronne 11. Les parties de corps central portent, suivant leur axe, un trou de centre et/ou un alésage 17 dans lequel peut être introduite une pièce de fixation, par exemple un boulon, permettant de bloquer les deux parties dans la position voulue. La partie 11 peut présenter à sa partie supérieure des fentes (représentées en trait interrompu) semblables aux fentes 16 et recevoir un autre élément 12.The embodiment of FIGS. 2A and 2B comprises a central body separable into at least two parts 11 and 12. Each of the parts carries at its periphery the ears which are either welded or have come directly from molding. The cooperating faces 13 and 14 of the two parts of the central body carry means for angular positioning of a ring relative to the other. According to a conventional embodiment, part 15 of the ears of part 12 engages in slots 16 provided in the crown 11. The central body parts carry, along their axis, a center hole and / or a bore 17 in which can be introduced a fixing piece, for example a bolt, allowing to block the two parts in the desired position. Part 11 can have slots (shown in broken lines) similar to slots 16 at its upper part and receive another element 12.

Les trous de centre et/ou alésages 17 matérialisent l'axe du corps central et permettent le perçage précis des oreilles.The center holes and / or bores 17 materialize the axis of the central body and allow precise piercing of the ears.

Un autre exemple d'un corps central en deux parties est montré dans les figures 3A et 3C. La partie 18 comporte six oreilles et la partie 19 (figure 3C) trois oreilles. Des moyens de positionnement, constitués par exemple d'un ergot 20 dans la partie 18 et de logements 21, permettent des décalages angulaires différents suivant l'utilisation de la pièce de liaison. Selon une autre forme de réalisation (figures 4A à 4E), le corps central est constitué de deux parties semblables 22 et 23 (figures 4A et 4B) sur la surface latérale desquelles on a prévu des rainures 24 parallèles à l'axe du corps central et qui pénètrent dans le corps (figure 4C). Les rainures reçoivent ou positionnent les bases 25 et 26 des oreilles qui y sont maintenues, par exemple, par collage, le corps étant de préférence en matière plastique. Les surfaces de base 27 et 28 des parties de corps portent un ergot 29 et un logement 30 en forme de demi-couronne coaxiale. Vus de dessus, l'ergot et le logement (figure 4C) sont disposés selon une couronne. Les parties de corps portant les oreilles (figures 4D et 4E) sont assemblées, de manière connue, pour former une pièce de liaison. Comme précédemment décrit, les faces des oreilles portent des marques 31 facilitant par positionnement une plage de perçage des oreilles pour recevoir les barres de structure.Another example of a two-part central body is shown in Figures 3A and 3C. Part 18 has six ears and part 19 (Figure 3C) three ears. Positioning means, consisting for example of a lug 20 in the part 18 and of housings 21, allow different angular offsets depending on the use of the connecting piece. According to another embodiment (FIGS. 4A to 4E), the central body consists of two similar parts 22 and 23 (FIGS. 4A and 4B) on the lateral surface of which grooves 24 are provided parallel to the axis of the central body and which enter the body (Figure 4C). The grooves receive or position the bases 25 and 26 of the ears which are held there, for example by gluing, the body preferably being made of plastic. The base surfaces 27 and 28 of the body parts carry a lug 29 and a housing 30 in the form of a coaxial half-crown. Seen from above, the lug and the housing (Figure 4C) are arranged in a crown. The body parts carrying the ears (Figures 4D and 4E) are assembled, in known manner, to form a connecting piece. As previously described, the faces of the ears bear marks 31 facilitating by positioning a piercing range of the ears to receive the structural bars.

Dans l'exemple des figures 5A à 5D, le corps central est formé d'au moins deux parties 32 et 33, chaque partie portant une rainure périphérique 34 dont le plan de symétrie est perpendiculaire à l'axe du corps central. La rainure est plus large dans le fond qu'à la surface du corps. Les bases des oreilles 37 et 38 présentent des formes approximativement complémentaires de celles des rainures avec lesquelles elles coopérent. Dans cette réalisation, chaque partie 32, 33 du corps central est constituée de deux pièces 39, 40 symétriques ou identiques. Le maintien des pièces l'une par rapport à l'autre est obtenu par les mêmes moyens que ceux décrits dans les figures précédentes 7A à 7E qui présentent deux parties 41 et 42 en demi-couronne faisant office d'ergot et de logement (figure 5D).In the example of FIGS. 5A to 5D, the central body is formed of at least two parts 32 and 33, each part carrying a peripheral groove 34 whose plane of symmetry is perpendicular to the axis of the central body. The groove is wider at the bottom than at the surface of the body. The bases of the ears 37 and 38 have shapes approximately complementary to those of the grooves with which they cooperate. In this embodiment, each part 32, 33 of the central body consists of two symmetrical or identical parts 39, 40. The maintenance of the parts relative to each other is obtained by the same means as those described in the preceding figures 7A to 7E which have two parts 41 and 42 in half-crown acting as lug and housing (figure 5D).

Lorsque les pièces sont assemblées, elles définissent une rainure 34 dont la section est approximativement en forme de T, la barre transversale du T étant parallèle à l'axe du corps central et proche de son axe. Les pièces d'extrémité, telle que la pièce 39, présentent sur leur face libre 43 un évidement 44 coaxial à un alésage axial 45. Les bases 35 et 36 des oreilles 37 et 38 sont présentées sur les pièces 40 assemblées dos à dos et sont maintenues par les pièces 39 lors de l'assemblage de la pièce de liaison. Les oreilles peuvent se déplacer le long des rainures dans un plan passant par l'axe du corps central ou faire éventuellement un angle avec cet axe et, lorsque les barres sont fixées, se mettre dans la position du minimum d'efforts.When the parts are assembled, they define a groove 34 whose section is approximately T-shaped, the crossbar of the T being parallel to the axis of the central body and close to its axis. The end pieces, such as the piece 39, have on their free face 43 a recess 44 coaxial with an axial bore 45. The bases 35 and 36 of the ears 37 and 38 are presented on the pieces 40 assembled back to back and are held by the parts 39 during assembly of the connecting part. The ears can move along the grooves in a plane passing through the axis of the central body or possibly make an angle with this axis and, when the bars are fixed, put themselves in the position of minimum effort.

Les figures 6A et 6C montrent une réalisation dans laquelle le corps central est formé de deux parties symétriques 46 et 47, chacune des parties présentant une rainure périphérique 48 de section approximativement rectangulaire, dont le plan de symétrie est perpendiculaire à l'axe du corps central, le fond de la rainure présentant une nervure 49 plus large en surface qu'en fond et en particulier de section en T, la barre verticale du T ou pied étant fixée sur le fond de la rainure perpendiculairement à l'axe du corps central, la barre transversale du T étant parallèle à l'axe du corps central et affleurant aux bords de la rainure. La partie périphérique de la nervure porte au moins un passage 50 de dimensions égales à la dimension du fond de rainure susceptible de laisser passer la base des oreilles présentant une forme approximativement complémentaire de la rainure et de sa nervure.FIGS. 6A and 6C show an embodiment in which the central body is formed of two symmetrical parts 46 and 47, each of the parts having a peripheral groove 48 of approximately rectangular section, the plane of symmetry of which is perpendicular to the axis of the central body , the bottom of the groove having a rib 49 wider at the surface than at the bottom and in particular of T section, the vertical bar of the T or foot being fixed on the bottom of the groove perpendicular to the axis of the central body, the crossbar of the T being parallel to the axis of the central body and flush with the edges of the groove. The peripheral part of the rib carries at least one passage 50 of dimensions equal to the dimension of the groove bottom capable of letting through the base of the ears having a shape approximately complementary to the groove and its rib.

La figure 6C montre en coupe une réalisation dans laquelle la nervure est discontinue et s'étend, par exemple, sur deux ou quatre secteurs de chaque partie du corps central. Chacun des secteurs est séparé du suivant par une paroi longitudinale 51 qui assure une plus grande rigidité de l'ensemble lors de l'assemblage.FIG. 6C shows in section an embodiment in which the rib is discontinuous and extends, for example, over two or four sectors of each part of the central body. Each of the sectors is separated from the next by a longitudinal wall 51 which ensures greater rigidity of the assembly during assembly.

Les oreilles des pièces de liaison sont fixées aux tubes de la structure au moyen de pièces de fixation 52 (figures 1, 7A, 7B). Selon l'exemple de réalisation représenté, cette pièce comporte au moins une chape 53 traversée par un alésage 54 qui est mis en concordance avec l'alésage de l'oreille percé en fonction des données du calcul d'application des forces. La barre 2 de liaison de la structure peut être soudée directement à cette chape ou être maintenue.The ears of the connecting pieces are fixed to the tubes of the structure by means of fixing pieces 52 (FIGS. 1, 7A, 7B). According to the embodiment shown, this part comprises at least one yoke 53 crossed by a bore 54 which is brought into line with the bore of the pierced ear as a function of the data from the calculation of the application of forces. The structure connecting bar 2 can be welded directly to this yoke or be maintained.

La pièce de fixation 52 porte, dans la réalisation représentée, une deuxième chape 55 d'axe perpendiculaire à celle coopérant avec l'oreille. La chape 55 peut être percée d'un alésage 56 traversant ou non et qui peut recevoir un dispositif permettant l'irrigation par un fluide de la barre ou encore (figure 7A) des moyens de raccordement étanches 57 et correspond avec un perçage de la barre de structure pour assurer le passage d'un fluide de refroidissement ou caloporteur.The fastener 52 carries, in the embodiment shown, a second yoke 55 with an axis perpendicular to that cooperating with the ear. The yoke 55 can be pierced with a bore 56 passing through or not and which can receive a device allowing the irrigation by a fluid of the bar or also (FIG. 7A) sealed connection means 57 and corresponds with a drilling of the bar structure to ensure the passage of a cooling or heat transfer fluid.

La figure 1 montre un noeud de liaison dans lequel toutes les pièces de fixation 52 comportent des moyens de raccordement qui sont reliés entre eux par des tuyaux 58 aboutissant à une boîte de raccordement ou de distribution 59, qui est éventuellement reliée à la source de fluide caloporteur de refroidissement ou de chauffage de la structure. Le système de liaison multidirectionnelle selon l'invention permet d'utiliser les barres de structure pour véhiculer des fluides et en particulier de disposer d'un réseau de lutte contre l'incendie efficace par le refroidissement des barres et par l'utilisation d'au moins un alésage de chape comme dispositif d'arrosage. Les applications du système de liaison sont très nombreuses et en particulier permettent la réalisation de structures à double courbure de deux nappes à épaisseur variable, telles qu'utilisées dans les réfrigérants statiques, en influant ou non sur l'effet Venturi, ou dynamiques, de faîtages de type shed « Tuile permettant une grande facilité de transformation et pouvant être entièrement assemblées au sol avec tous les composants et accessoires (couverture, tuyauterie...).FIG. 1 shows a connection node in which all the fixing parts 52 comprise connection means which are connected together by pipes 58 leading to a connection or distribution box 59, which is optionally connected to the source of fluid coolant for cooling or heating the structure. The multidirectional connection system according to the invention makes it possible to use the structural bars for conveying fluids and in particular to have an effective fire fighting network by cooling the bars and by using minus a screed bore as a sprinkler device. The applications of the connection system are very numerous and in particular allow the realization of double curvature structures of two layers of variable thickness, such as used in static refrigerants, with or without influencing the Venturi effect, or dynamic, ridge shed type "Tile allowing great ease of transformation and can be fully assembled on the ground with all components and accessories (roofing, piping ...).

La standardisation des pièces de liaison permet une diminution des délais entre le moment de la conception et celui de la livraison de la structure, elle permet également un moindre coût par l'universalité des composants de la structure.The standardization of the connecting parts allows a reduction of the time periods between the moment of design and that of the delivery of the structure, it also allows a lower cost by the universality of the components of the structure.

Selon la forme de réalisation représentée figures 8A-8B, le corps central de la pièce de liaison est réalisé en au moins deux parties superposables, chacune des parties portant une couronne d'oreilles 63, 64. La partie 64 présente des oreilles 58 dont les plans sont, selon l'exemple, verticaux. Le corps central 59 porte des logements 60 dans lesquels sont susceptibles de pénétrer des ergots 61 prévus sur une des faces de la deuxième couronne d'oreilles représentée figure 8B. Les logements prévus sur les deux faces planes et parallèles du corps central 59 permettent la réalisation d'une pièce de liaison à trois couronnes d'oreilles : une couronne centrale 64 conforme à la figure 8A et deux couronnes, une supérieure 62 et une inférieure 63 conformes à la figure 8B. La couronne centrale 64 peut être réalisée selon un des exemples des figures 4A, 5A, 6A avec des oreilles amovibles. Le corps central d'où partent les oreilles 58 est cylindrique ou polygonal et est percé selon son axe par un canal 65 au moins en partie de forme polygonale.According to the embodiment shown in Figures 8A-8B, the central body of the connecting piece is made of at least two superimposable parts, each of the parts carrying an earring 63, 64. The part 64 has ears 58 whose planes are, according to the example, vertical. The central body 59 carries housings 60 into which are likely to penetrate lugs 61 provided on one of the faces of the second ring of ears shown in FIG. 8B. The housings provided on the two flat and parallel faces of the central body 59 allow the production of a connecting piece with three ear rings: a central ring 64 according to FIG. 8A and two rings, an upper 62 and a lower 63 as shown in Figure 8B. The central crown 64 can be produced according to one of the examples of FIGS. 4A, 5A, 6A with removable ears. The central body from which the ears 58 leave is cylindrical or polygonal and is pierced along its axis by a channel 65 at least partly of polygonal shape.

La partie de pièce représentée figure 8B est formée d'un corps central 66 d'où partent des oreilles 67 dont la direction par rapport aux plans parallèles du corps central fait un angle aigu. Selon une particularité de cette réalisation, le corps central est approximativement tronconique, l'angle du cône permettant une transmission égale des efforts de traction ou de compression s'exerçant sur les oreilles de manière que le point de concours des forces soit au centre O de la pièce de liaison. Ce point 0 est situé à l'intérieur de la partie du corps central et correspond au point de concours des forces de la couronne médiane d'oreilles 64.The part part shown in FIG. 8B is formed by a central body 66 from which leave ears 67 whose direction relative to the parallel planes of the central body makes an acute angle. According to a feature of this embodiment, the central body is approximately frustoconical, the angle of the cone allowing an equal transmission of the traction or compression forces being exerted on the ears so that the point of concurrence of the forces is at the center O of the connecting piece. This point 0 is located inside the part of the central body and corresponds to the point of competition of the forces of the middle crown of ears 64.

Le corps tronconique porte, sur sa base la plus large, les ergots 61 de forme correspondant à celle des logements 60 de la couronne médiane 64, et selon son axe longitudinal, un canal 68 de forme polygonale de section égale à celle du canal 65 de la couronne 64.The frustoconical body carries, on its widest base, the pins 61 of shape corresponding to that of the housings 60 of the central crown 64, and along its longitudinal axis, a channel 68 of polygonal shape of section equal to that of channel 65 of crown 64.

Selon l'exemple de la figure 8B, la surface latérale du corps central est concave, ce qui permet un allégement de la pièce et une meilleure répartition des forces s'exerçant à l'extrémité des oreilles.According to the example of FIG. 8B, the lateral surface of the central body is concave, which allows a reduction in the workpiece and a better distribution of the forces exerted at the end of the ears.

Selon des formes de réalisation du corps central de la couronne centrale ou des couronnes supérieure et/ou inférieure, au moins une partie du corps est définie par un volume de révolution de section circulaire ou polygonale dont la génératrice est formée par au moins une courbe ou une droite ou par une combinaison de courbes et/ou de droites.According to embodiments of the central body of the central crown or of the upper and / or lower crowns, at least one part of the body is defined by a volume of revolution of circular or polygonal cross section whose generatrix is formed by at least one curve or a straight line or by a combination of curves and / or straight lines.

La figure 9 est une vue de dessus d'une couronne médiane 64 et d'une couronne inférieure 63. Les deux parties de la pièce de liaison sont solidarisées par un moyen de serrage, tel que vis et écrou passant dans le canal axial 65, 68. Ce canal axial reçoit éventuellement une pièce de positionnement 69 de forme correspondante à celle du canal et maintenant les couronnes d'oreilles en position les unes par rapport aux autres. Dans le cas de l'exemple, la pièce de positionnement 69 renforce le dispositif de positionnement angulaire formé par les logements 60 et les ergots 61.FIG. 9 is a top view of a central ring 64 and a lower ring 63. The two parts of the connecting piece are joined together by a clamping means, such as a screw and nut passing through the axial channel 65, 68. This axial channel possibly receives a positioning piece 69 of shape corresponding to that of the channel and maintaining the earrings in position relative to each other. In the case of the example, the positioning piece 69 reinforces the angular positioning device formed by the housings 60 and the pins 61.

Selon une autre réalisation non représentée, le dispositif 60, 61 est remplacé par la pièce de positionnement 69.According to another embodiment, not shown, the device 60, 61 is replaced by the positioning part 69.

Comme dans les exemples précédents, la forme des oreilles est prévue de manière à permettre un positionnement des barres de structure pouvant présenter des écarts angulaires a1, a2, b1, b2 donnés par rapport à l'axe moyen de l'oreille ao, bo en conservant le concours en un même point 0 situé sur l'axe du corps central 14.As in the previous examples, the shape of the ears is provided so as to allow positioning of the structural bars which may have angular deviations a 1 , a 2 , b 1 , b 2 given relative to the mean axis of the ear a o , b o keeping the competition at the same point 0 located on the axis of the central body 14.

Dans l'exemple de réalisation des figures 8A, 8B, les oreilles des couronnes centrale et inférieure et/ou supérieure peuvent être agrandies jusqu'à une limite correspondant approximativement à la tangence des bords voisins 70, 71 des oreilles de couronnes adjacentes 64, 63 et 62, 64. Cette particularité permet de placer des oreilles des couronnes inférieure et/ou supérieure dans le même plan qu'une ou plusieurs oreilles de la couronne centrale. Si l'on ne désire pas obtenir un positionnement continu sur 360°, les oreilles des couronnes inférieure et/ou supérieure peuvent s'interpénéter comme le montrent les figures 2A, 2B ; 3A, 3B ; 5A, 6A.In the embodiment of FIGS. 8A, 8B, the ears of the central and lower and / or upper crowns can be enlarged to a limit corresponding approximately to the tangency of the neighboring edges 70, 71 of the ears of adjacent crowns 64, 63 and 62, 64. This feature makes it possible to place the ears of the lower and / or upper crowns in the same plane as one or more ears of the central crown. If one does not wish to obtain a continuous positioning over 360 °, the ears of the lower and / or upper crowns can interpenetrate as shown in FIGS. 2A, 2B; 3A, 3B; 5A, 6A.

Selon une autre forme de réalisation non représentée, les bords 72 des oreilles des couronnes inférieure 63 et supérieure 62 peuvent à la limite être parallèles à l'axe de la pièce centrale.According to another embodiment, not shown, the edges 72 of the ears of the lower 63 and upper 62 crowns can, at the limit, be parallel to the axis of the central part.

Claims (20)

1. Multi-directional connecting system for openwork structures comprising a connecting piece (1) formed from a central body (4) furnished with radial ears (5, 6 ; 37, 38 ; 58) arranged so as to form crowns (7, 8 ; 62, 63 ; 64), and fixing pieces (54, 52) connecting the ears to the bars of the structure, the ears being adapted to provide holes (10) for the location of the bar fixings, the central axes of the bar fixings on the ears of the crowns meeting at the same point (O) on the axis of the central body (4), characterised in that the central body can be separated along a transverse plane into at least two parts (11,12 ; 18, 19 ; 32, 33 ; 46, 47), each of the parts carrying an eared crown, and in that the co-operating faces of the parts of the central body carry positioning means (20, 21) allowing the angular displacement of one crown in relation to another.
2. Connecting system according to claim 1, characterised in that the ears are designed to receive a fixing for structure bars the central axes of which have angular deviations in relation to the position of the central axis of the ear while still meeting at a single point (O) on the axis of the central body (14).
3. Connecting system according to claim 2, characterised in that at least one ear carries on its surface marks (31) corresponding to the possible location of the bar fixings.
4. Connecting system according to claim 2 or 3, characterised in that the central plane of at least one ear intercepts the axis of the central body.
5. Connecting system according to any one of claims 1 to 4, in which each fixing piece, carrying on one extremity a fork for connection to an ear, is characterised in that it carries on the other extremity another fork (55) capable of co-operating with a bar of the structure.
6. Connecting system according to claim 1, characterised in that each part of the central body carries on its surface recesses (9, 24) capable of receiving the base of the ears.
7. Connecting system according to claim 6 characterised in that the recesses (9, 24) are parallel to the axis of the central body.
8. Connecting system according to claim 1, characterised in that at least one part (32, 33) of the central body carries at least one peripheral groove (34) whose symmetrical plane is perpendicular to the axis of the central body, the said groove being wider near to the axis than at the surface of the body and in that the base (35, 36) of each ear (37, 38) has a shape and dimensions approximately complementary to those of the groove with which it co-operates.
9. Connecting system according to claim 8, characterised in that at least one part of the central body is constructed from at least two symmetrical parts (39, 40) capable of assembly to form a part of the central body.
10. Connecting system according to any one of claims 1 to 9, characterised in that each part (46, 47) of the central body carries a peripheral rectangular groove (48) whose symmetrical plane is perpendicular to the axis of the central body, the said groove having a rib (49) extending from the bottom to the surface and lying in a plane parallel to the symmetrical plane, the rib being larger at the surface than at the bottom and carrying at least one passage (50) allowing the introduction of the base of the ears, the said base having a shape and dimensions approximately complementary to those of the groove and its groove with which it co-operates.
11. Connecting system according to claim 10, characterised in that the rib (49) has a T-shaped section, the foot of the T being at the bottom of the groove.
12. Connecting system according to claim 10 or 11, characterised in that the peripheral groove is discontinuous and extends over at least two sectors of each part of the central body, each sector being separated from the following one by a longitudinal partition (51).
13. Connecting system according to any one of claims 5 to 8, characterised in that at least one part (62, 63) of the central body has a circular or polygonal section of which the generator is formed from at least one curve and/or one straight line.
14. Connecting system according to any one of the preceding claims, characterised in that at least two parts (59, 66) of the central body carry an axial channel (65, 68) carrying positioning means.
15. Connecting system according to claim 13, characterised in that a polygonal positioning part (69) is provided which is capable of co-operating with the axial channel (65, 68).
16. Connecting system according to any one of claims 13 to 15, characterised in that the central body can be separated into three parts each carrying a crown of ears, a central part (64), an upper part (62), and a lower part (63), the upper and lower parts being frusto-conical in shape.
17. Connecting system according to any one of the preceding claims, characterised in that at least one crown of ears has at least one ear in the same plane as an ear from another crown.
18. Connecting system according to one of the preceding claims, characterised in that at least one part of the bars of the structure is hollow.
19. Connecting system according to claim 18, characterised in that the fixing part carries, on the side co-operating with the bars of the structure, joining means (56, 57) allowing the passage of a fluid.
20. Connecting system according to claim 19, characterised in that the joining means are linked together by pipes (58).
EP81400104A 1980-02-06 1981-01-26 Multidirectional connecting system for structures Expired EP0034078B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400104T ATE10868T1 (en) 1980-02-06 1981-01-26 MULTIDIRECTIONAL CONNECTION SYSTEM FOR STRUCTURES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8002591 1980-02-06
FR8002591A FR2481385A1 (en) 1980-02-06 1980-02-06 MULTIDIRECTIONAL BONDING SYSTEM FOR STRUCTURES

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EP0034078A1 EP0034078A1 (en) 1981-08-19
EP0034078B1 true EP0034078B1 (en) 1984-12-19

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EP (1) EP0034078B1 (en)
JP (2) JPS56131813A (en)
AT (1) ATE10868T1 (en)
DE (1) DE3167764D1 (en)
FR (1) FR2481385A1 (en)

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Also Published As

Publication number Publication date
FR2481385B1 (en) 1985-03-08
EP0034078A1 (en) 1981-08-19
FR2481385A1 (en) 1981-10-30
JPS56131813A (en) 1981-10-15
US4460288A (en) 1984-07-17
DE3167764D1 (en) 1985-01-31
JPH01143409U (en) 1989-10-02
ATE10868T1 (en) 1985-01-15

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