EP0451068A1 - Connecting piece for longitudinal elements - Google Patents

Connecting piece for longitudinal elements Download PDF

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Publication number
EP0451068A1
EP0451068A1 EP91420114A EP91420114A EP0451068A1 EP 0451068 A1 EP0451068 A1 EP 0451068A1 EP 91420114 A EP91420114 A EP 91420114A EP 91420114 A EP91420114 A EP 91420114A EP 0451068 A1 EP0451068 A1 EP 0451068A1
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EP
European Patent Office
Prior art keywords
branches
groove
key
fixed
allow
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.)
Granted
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EP91420114A
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German (de)
French (fr)
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EP0451068B1 (en
Inventor
Claude Perruelle
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Individual
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Individual
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Priority to AT91420114T priority Critical patent/ATE92568T1/en
Publication of EP0451068A1 publication Critical patent/EP0451068A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
    • 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
    • Y10T403/30—Laterally related members connected by latch means, e.g., scaffold connectors

Definitions

  • the present invention relates to an assembly part for elongated elements.
  • This part is, in general, intended to equip any elongated element intended to produce, by means of its assembly with other identical or similar elements, a support structure. In particular, it is intended for elements allowing the realization of a scaffolding.
  • the assembly is carried out by means of flanges fixed coaxially to the uprights and of complementary assembly parts integral with the ends of the crosspieces, each comprising a groove allowing its engagement around a part of the flange and holes provided for, when this engagement is made, coincide with a hole that includes the flange, so as to allow the force introduction through them of a wedge-shaped locking key, one edge of which bears against the workpiece and the other edge of which is in abutment against the collar, so that it allows the blocking of the part on the collar when it is pressed.
  • the assembly parts currently known are metallic and cast in a foundry. They have the disadvantages of being very heavy, difficult to manufacture, at a high cost, and of imposing long delays for their realization.
  • their significant weight limits the dimensions, so that, if they are intended to, after assembly, be in abutment against the wall of the upright, their bearing surface against this wall is insufficient to eliminate a certain clearance of the uprights with respect to the crosspieces during the construction of the scaffolding, which entails, in addition to the instability of the latter, a risk of damage to the parts and the flanges.
  • the present invention aims to remedy these drawbacks.
  • the assembly part which it relates to which is of the type fixed to one end of an element and comprising a groove intended to allow its engagement around a complementary fixing member carried by another element to be fixed to the element to which the part is fixed, is characterized in that it has, in cross section, a M-shaped profile whose two central branches, which are separated from the lateral branches by free volumes, delimit between them the aforementioned groove and whose lateral branches allow the attachment of the part to the elongated element which it equips.
  • the assembly piece according to the invention is particularly light. It is also very simple and quick to produce, at low cost, and this, in particular when it is constituted by a metal strip folded so as to delimit its branches, in accordance with a preferred embodiment.
  • the part comprises two flat parts, located in the same plane and oriented perpendicular to the groove, on either side of the opening from which they extend widely, the depth of the groove being provided so that in position assembly of the part and its aforementioned complementary fixing member, the flat parts come to bear against the wall of the elongated element carrying the complementary fixing member.
  • These flat parts constitute large sones of support of the part, capable of eliminating any play between the elements when they are assembled. Thanks to the lightness of the part according to the invention, the length of these support sones can be more than doubled compared to that of the support sones that comprise existing parts, which makes it possible to make the scaffolding perfectly stable. .
  • the lateral branches play the role of bracing of these flat parts and allow a distribution of the forces transmitted to the part.
  • the part is intended to be fixed to a hollow elongate element internally and the part of its central branches which delimits the bottom of the groove is shaped to be engaged in the cavity of the element when the part is fixed to it. , this part being extended laterally by shoulders intended to bear against the edge of the opening of the element.
  • the part equips the end of a cross member and the lateral edges of its branches converge on the side opposite to the cross member.
  • Such parts allow the fixing of several sleepers on a single flange, which, fixed coaxially to an upright of the scaffolding, constitutes the complementary member for fixing the parts, this fixing being able to be done with small spacing angles between the crosspieces.
  • the part comprises holes provided for, when its engagement on its complementary fixing member is made, coincide with a hole that includes this member, so as to allow the force introduction through them of a wedge-shaped locking key, one edge of which bears against the workpiece and the other edge of which bears against the member, so that it makes it possible, when it is pressed, the blocking of the part on the organ.
  • the key comprises, near its narrower end, a protruding stud forming a pin and the hole made in the lateral branch of the part located on the side opposite the stud is designed to let the key pass, but not the stud, while the other holes are provided to let through the key and the pin.
  • Figures 1,3 and 4 are perspective views, in cross section and from above respectively during operation.
  • Figure 2 is a top view of a metal strip cut from which it is obtained.
  • FIG. 1 represents, in strong lines, an assembly part 2 and, in fine lines and fictitiously represented as being transparent, a metal and tubular cross-member 3, to which the part 2 is fixed, as well as an upright 4, also metallic and tubular, on which is fixed coaxially a flange 5, pierced with holes 6 and intended for the adaptation of the part 2 in order to assemble the cross-member 3 and the upright 4.
  • the part 2 comprises a groove 7 engaged around the collar 5.
  • the part 2 has in cross section an M-shaped profile whose two central branches 2a delimit between them the groove 7 and the lateral branches 2b, oblique, suitably bent longitudinally at their free end, allow the attachment of the part 2 to the crosspiece 3 by welding.
  • the part 2 comprises two flat parts 2c, situated in the same plane and oriented perpendicular to the groove 7, on either side of the opening from which they extend widely.
  • the depth of the groove is provided so that in the assembled position of the part 2 and the flange 5, the flat parts 2c can come to bear against the wall of the upright 4.
  • the central branches 2a delimit, with the lateral branches 2b and the parts 2c, free volumes 8.
  • the part of the branches 2a constituting the bottom of the groove 6 is engaged in the cavity of the cross member 3. This part is extended laterally by shoulders 10 bearing against the edge of the opening of the cross member 3, to which they are welded .
  • the lateral edges 11 of the branches 2a and part of those of the branches 2b converge on the side opposite to the cross-member 3.
  • the part 2 is equipped with a key 15 intended to be engaged through holes 16, 17 and 18 formed in the branches 2a and 2b and aligned vertically, as well as through the hole 6 with which they coincide, when the part 2 is engaged on the flange 5.
  • the key 15 has the shape of a wedge and one 15a of its edges is in abutment against the edges turned towards the upright 4 of the holes 17 and 18 while the other 15b of its edges is brought to bear against the opening of the hole 6 during the depression of the key 15.
  • the key 15 is equipped with a pin 20 projecting laterally from its end situated on the side opposite to the lateral branch 2b in which the hole 17 is formed, the width of the latter being such that it allows the passage and the sliding of the key 15 but not the passage of the pin 20 while the width of the holes 16 and 18 is such that it allows the passage through them both of the key 15 and of the pin 20.
  • FIG. 2 represents a metal strip 30 which is symmetrical on either side of its longitudinal and transverse median axes, except for the fact that, among the four holes 36, 37 and 38 which it comprises, the holes 37 and 38 differ in their dimensions.
  • the strip 30 comprises a central part 30a and end parts 30b separated from the central part by intermediate parts 30c.
  • the part 30a comprises the holes 36 and, in its middle, two rectangular recesses 35 formed in its longitudinal edges. On either side of these recesses 35, the latter are oblique and converge towards one another in the direction of the parts 30c then diverge after the latter at the same angle.
  • One of the parts 30b comprises the hole 37 and the other the hole 38.
  • the strip 30 is intended to be folded to allow the production of part 2.
  • the part 30a of the strip 30, after folding over itself around its transverse median axis, constitutes the central branches 2a of the part 2 and the bottom of the groove 7 while its parts 30b constitute the branches 2b and its parts 30c the flat parts 2c.
  • the holes 36, 37 and 38 respectively constitute the holes 16, 17 and 18 and the oblique edges of the strip 30 constituting the converging lateral edges 11 of the branches 2a and 2b of the part 2.
  • the edges 35a of the recesses 35 make it possible to produce the shoulders 10.
  • the forced insertion of the key 15 makes it possible to block the part 2 on the flange 5 and to press the surfaces 2c against the wall of the upright 4.
  • the key 15 cannot be separated from the part 2 by virtue of to the pin 21 and to the hole 17, and always remains stationary, the key 15 being able to be placed in the standby position along the cross-member 3 by virtue of the conformation of the part 2, as shown in FIG. 3 in lines mixed, position which facilitates its subsequent engagement through the part 2 and which facilitates the storage and arrangement of the sleepers 3.
  • the parts 2c constitute large support sones of the part 2, capable of eliminating any play between the cross-member 3 and the upright 4 when they are assembled.
  • the oblique branches 2b play the role of bracing of the parts 2c and make it possible to distribute the forces which the part 2 undergoes.
  • the shoulders 10 make it possible to provide additional attachment points for the part 2 to the cross-member 3, in order to perfectly secure its central branches 2a to the latter.
  • the converging oblique edges of the part 2 allow the mounting of several crosspieces 3 on the flange 4 with minimum angles of spacing between them of 45 °.
  • the part is simple to produce and particularly light, while being very resistant due to its different fixing points.

Abstract

This piece is of the type fixed to one end of an element and comprising a groove intended to permit its engagement around a complementary fixing member carried by another element which is to be fixed to the element to which the piece is fixed. <??>According to the invention, it exhibits, in transverse cross-section, a M-shaped profile whose two central arms (2a), which are separated from the lateral arms (2b) by free volumes (8), define between them the abovementioned groove (7) and whose lateral arms (2b) permit the fixing of the part (2) to the longitudinal element (3) which is fitted with it. <??>Especially intended for the construction of scaffolding. <IMAGE>

Description

La présente invention concerne une pièce d'assemblage pour éléments longiformes.The present invention relates to an assembly part for elongated elements.

Cette pièce est, d'une manière générale, prévue pour équiper tout élément longiforme destiné à réaliser, au moyen de son assemblage avec d'autres éléments identiques ou similaires, une structure porteuse. En particulier, elle est destinée à des éléments permettant la réalisation d'un échafaudage.This part is, in general, intended to equip any elongated element intended to produce, by means of its assembly with other identical or similar elements, a support structure. In particular, it is intended for elements allowing the realization of a scaffolding.

Il est connu d'assembler deux éléments d'un échafaudage par l'engagement l'un dans l'autre d'organes complémentaires de fixation qu'ils comportent et le verrouillage de ceux-ci.It is known to assemble two elements of a scaffold by engaging one in the other complementary fastening members which they comprise and locking them.

Suivant une forme de réalisation, l'assemblage est réalisé au moyen de collerettes fixées coaxialement aux montants et de pièces complémentaires d'assemblage solidaires des extrémités des traverses, comprenant chacune une gorge permettant son engagement autour d'une partie de la collerette et des trous prévus pour, lorsque cet engagement est réalisé, coïncider avec un trou que comprend la collerette, de manière à permettre l'introduction en force à travers eux d'une clavette de verrouillage en forme de coin, dont un bord est en appui contre la pièce et dont l'autre bord est en appui contre la collerette, afin qu'elle permette de réaliser, lorsqu'elle est enfoncée, le blocage de la pièce sur la collerette.According to one embodiment, the assembly is carried out by means of flanges fixed coaxially to the uprights and of complementary assembly parts integral with the ends of the crosspieces, each comprising a groove allowing its engagement around a part of the flange and holes provided for, when this engagement is made, coincide with a hole that includes the flange, so as to allow the force introduction through them of a wedge-shaped locking key, one edge of which bears against the workpiece and the other edge of which is in abutment against the collar, so that it allows the blocking of the part on the collar when it is pressed.

Les pièces d'assemblage actuellement connues sont métalliques et coulées en fonderie. Elles présentent les inconvénients d'être très lourdes, difficiles à fabriquer, à un coût important, et d'imposer de longs délais pour leur réalisation. De plus, leur poids important en limite les dimensions, de sorte que, dans le cas où elles sont prévues pour, après montage, être en appui contre la paroi du montant, leur surface d'appui contre cette paroi est insuffisante pour éliminer un certain jeu des montants par rapport aux traverses lors de la construction de l'échafaudage, ce qui entraîne, outre l'instabilité de ce dernier, un risque d'endommagement des pièces et des collerettes.The assembly parts currently known are metallic and cast in a foundry. They have the disadvantages of being very heavy, difficult to manufacture, at a high cost, and of imposing long delays for their realization. In addition, their significant weight limits the dimensions, so that, if they are intended to, after assembly, be in abutment against the wall of the upright, their bearing surface against this wall is insufficient to eliminate a certain clearance of the uprights with respect to the crosspieces during the construction of the scaffolding, which entails, in addition to the instability of the latter, a risk of damage to the parts and the flanges.

La présente invention vise à remédier à ces inconvénients.The present invention aims to remedy these drawbacks.

A cette fin, la pièce d'assemblage qu'elle concerne, qui est du type fixée à une extrémité d'un élément et comprenant une gorge destinée à permettre son engagement autour d'un organe complémentaire de fixation porté par un autre élément devant être fixé à l'élément auquel est fixée la pièce, se caractérise en ce qu'elle présente, en section transversale, un profil en forme de M dont les deux branches centrales, qui sont séparées des branches latérales par des volumes libres, délimitent entre elles la gorge précitée et dont les branches latérales permettent la fixation de la pièce à l'élément longiforme qu'elle équipe.To this end, the assembly part which it relates to, which is of the type fixed to one end of an element and comprising a groove intended to allow its engagement around a complementary fixing member carried by another element to be fixed to the element to which the part is fixed, is characterized in that it has, in cross section, a M-shaped profile whose two central branches, which are separated from the lateral branches by free volumes, delimit between them the aforementioned groove and whose lateral branches allow the attachment of the part to the elongated element which it equips.

Grâce à ses volumes libres, la pièce d'assemblage selon l'invention est particulièrement légère. Elle est en outre très simple et rapide à réaliser, à un faible coût, et ce, en particulier lorsqu'elle est constituée par une bande métallique pliée de manière à délimiter ses branches, conformément à une forme préférée de réalisation.Thanks to its free volumes, the assembly piece according to the invention is particularly light. It is also very simple and quick to produce, at low cost, and this, in particular when it is constituted by a metal strip folded so as to delimit its branches, in accordance with a preferred embodiment.

De préférence, la pièce comprend deux parties planes, situées dans un même plan et orientées perpendiculairement à la gorge, de part et d'autre de l'ouverture de laquelle elles débordent largement, la profondeur de la gorge étant prévue pour qu'en position assemblée de la pièce et de son organe complémentaire de fixation précité, les parties planes viennent s'appuyer contre la paroi de l'élément longiforme portant l'organe complémentaire de fixation.Preferably, the part comprises two flat parts, located in the same plane and oriented perpendicular to the groove, on either side of the opening from which they extend widely, the depth of the groove being provided so that in position assembly of the part and its aforementioned complementary fixing member, the flat parts come to bear against the wall of the elongated element carrying the complementary fixing member.

Ces parties planes constituent de larges sones d'appui de la pièce, propres à éliminer tout jeu entre les éléments lorsqu'ils sont assemblés. Grâce à la légèreté de la pièce selon l'invention, la longueur de ces sones d'appui peut être plus que doublée par rapport à celle des sones d'appui que comprennent les pièces existantes, ce qui permet de rendre l'échafaudage parfaitement stable. Les branches latérales jouent le rôle de contreventement de ces parties planes et permettent une répartition des efforts transmis à la pièce.These flat parts constitute large sones of support of the part, capable of eliminating any play between the elements when they are assembled. Thanks to the lightness of the part according to the invention, the length of these support sones can be more than doubled compared to that of the support sones that comprise existing parts, which makes it possible to make the scaffolding perfectly stable. . The lateral branches play the role of bracing of these flat parts and allow a distribution of the forces transmitted to the part.

Avantageusement, la pièce est destinée à être fixée à un élément longiforme creux intérieurement et la partie de ses branches centrales qui délimite le fond de la gorge est conformée pour être engagée dans la cavité de l'élément lorsque la pièce est fixée à celui-ci, cette partie étant prolongée latéralement par des épaulements destinés à venir en appui contre le bord de l'ouverture de l'élément.Advantageously, the part is intended to be fixed to a hollow elongate element internally and the part of its central branches which delimits the bottom of the groove is shaped to be engaged in the cavity of the element when the part is fixed to it. , this part being extended laterally by shoulders intended to bear against the edge of the opening of the element.

Cette conformation permet de réaliser des points supplémentaires de fixation de la pièce à l'élément au niveau de ses branches centrales. Ces dernières, qui peuvent être amenées à subir des efforts importants, sont ainsi parfaitement solidarisées à l'élément.This conformation makes it possible to provide additional points for fixing the part to the element at its central branches. The latter, which can be subjected to significant efforts, are thus perfectly secured to the element.

De préférence, la pièce équipe l'extrémité d'une traverse et les bords latéraux de ses branches convergent du côté opposé à la traverse.Preferably, the part equips the end of a cross member and the lateral edges of its branches converge on the side opposite to the cross member.

De telles pièces permettent la fixation de plusieurs traverses sur une même collerette, qui, fixée coaxialement à un montant de l'échafaudage, constitue l'organe complémentaire de fixation des pièces, cette fixation pouvant se faire avec de faibles angles d'écartement entre les traverses.Such parts allow the fixing of several sleepers on a single flange, which, fixed coaxially to an upright of the scaffolding, constitutes the complementary member for fixing the parts, this fixing being able to be done with small spacing angles between the crosspieces.

Par ailleurs, suivant une forme préférée d'exécution de l'invention, la pièce comprend des trous prévus pour, lorsque son engagement sur son organe complémentaire de fixation est réalisé, coïncider avec un trou que comprend cet organe, de manière à permettre l'introduction en force à travers eux d'une clavette de verrouillage en forme de coin dont un bord est en appui contre la pièce et dont l'autre bord est en appui contre l'organe, afin qu'elle permette de réaliser, lorsqu'elle est enfoncée, le blocage de la pièce sur l'organe.Furthermore, according to a preferred embodiment of the invention, the part comprises holes provided for, when its engagement on its complementary fixing member is made, coincide with a hole that includes this member, so as to allow the force introduction through them of a wedge-shaped locking key, one edge of which bears against the workpiece and the other edge of which bears against the member, so that it makes it possible, when it is pressed, the blocking of the part on the organ.

Avantageusement, la clavette comporte, à proximité de son extrémité la moins large, un têton en saillie formant goupille et le trou ménagé dans la branche latérale de la pièce située du côté opposé au têton est prévu pour laisser passer la clavette mais pas le têton, alors que les autres trous sont prévus pour laisser passer la clavette et le têton.Advantageously, the key comprises, near its narrower end, a protruding stud forming a pin and the hole made in the lateral branch of the part located on the side opposite the stud is designed to let the key pass, but not the stud, while the other holes are provided to let through the key and the pin.

Ainsi, la clavette ne peut séparée de la pièce et reste toujours à poste.Thus, the key cannot be separated from the part and always remains at the station.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme de réalisation préférée de la pièce selon l'invention.In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, a preferred embodiment of the part according to the invention.

Figures 1,3 et 4 en sont des vues respectivement en perspective, en coupe transversale et de dessus en cours de fonctionnement ; etFigures 1,3 and 4 are perspective views, in cross section and from above respectively during operation; and

Figure 2 est une vue de dessus d'une bande métallique découpée à partir de laquelle elle est obtenue.Figure 2 is a top view of a metal strip cut from which it is obtained.

La figure 1 représente, en traits forts, une pièce d'assemblage 2 et, en traits fins et fictivement représentés comme étant transparents, une traverse 3 métallique et tubulaire, à laquelle est fixée la pièce 2, ainsi qu'un montant 4, également métallique et tubulaire, sur lequel est fixée coaxialement une collerette 5, percée de trous 6 et destinée à l'adaptation de la pièce 2 pour réaliser l'assemblage de la traverse 3 et du montant 4. Pour permettre cette adaptation, la pièce 2 comprend une gorge 7 engagée autour de la collerette 5.FIG. 1 represents, in strong lines, an assembly part 2 and, in fine lines and fictitiously represented as being transparent, a metal and tubular cross-member 3, to which the part 2 is fixed, as well as an upright 4, also metallic and tubular, on which is fixed coaxially a flange 5, pierced with holes 6 and intended for the adaptation of the part 2 in order to assemble the cross-member 3 and the upright 4. To allow this adaptation, the part 2 comprises a groove 7 engaged around the collar 5.

Comme cela est plus particulièrement visible sur la figure 3, la pièce 2 présente en section transversale un profil en forme de M dont les deux branches centrales 2a délimitent entre elles la gorge 7 et dont les branches latérales 2b, obliques, convenablement cintrées longitudinalement au niveau de leur extrémité libre, permettent la fixation de la pièce 2 à la traverse 3 par soudure.As is more particularly visible in FIG. 3, the part 2 has in cross section an M-shaped profile whose two central branches 2a delimit between them the groove 7 and the lateral branches 2b, oblique, suitably bent longitudinally at their free end, allow the attachment of the part 2 to the crosspiece 3 by welding.

La pièce 2 comprend deux parties planes 2c, situées dans un même plan et orientées perpendiculairement à la gorge 7, de part et d'autre de l'ouverture de laquelle elles débordent largement. La profondeur de la gorge est prévue pour qu'en position assemblée de la pièce 2 et de la collerette 5, les parties planes 2c puissent venir s'appuyer contre la paroi du montant 4.The part 2 comprises two flat parts 2c, situated in the same plane and oriented perpendicular to the groove 7, on either side of the opening from which they extend widely. The depth of the groove is provided so that in the assembled position of the part 2 and the flange 5, the flat parts 2c can come to bear against the wall of the upright 4.

Les branches centrales 2a délimitent, avec les branches latérales 2b et les parties 2c, des volumes libres 8.The central branches 2a delimit, with the lateral branches 2b and the parts 2c, free volumes 8.

La partie des branches 2a constituant le fond de la gorge 6 est engagée dans la cavité de la traverse 3. Cette partie est prolongée latéralement par des épaulements 10 venant en appui contre le bord de l'ouverture de la traverse 3, auquel ils sont soudés. Les bords latéraux 11 des branches 2a et une partie de ceux des branches 2b convergent du côté opposé à la traverse 3.The part of the branches 2a constituting the bottom of the groove 6 is engaged in the cavity of the cross member 3. This part is extended laterally by shoulders 10 bearing against the edge of the opening of the cross member 3, to which they are welded . The lateral edges 11 of the branches 2a and part of those of the branches 2b converge on the side opposite to the cross-member 3.

Par ailleurs, la pièce 2 est équipée d'une clavette 15 destinée à être engagée au travers de trous 16,17 et 18 ménagés dans les branches 2a et 2b et alignés verticalement, ainsi qu'au travers du trou 6 avec lequel ils coïncident, lorsque la pièce 2 est engagée sur la collerette 5. La clavette 15 a la forme d'un coin et l'un 15a de ses bords est en appui contre les bords tournés vers le montant 4 des trous 17 et 18 tandis que l'autre 15b de ses bords est amené à s'appuyer contre l'ouverture du trou 6 au cours de l'enfoncement de la clavette 15.Furthermore, the part 2 is equipped with a key 15 intended to be engaged through holes 16, 17 and 18 formed in the branches 2a and 2b and aligned vertically, as well as through the hole 6 with which they coincide, when the part 2 is engaged on the flange 5. The key 15 has the shape of a wedge and one 15a of its edges is in abutment against the edges turned towards the upright 4 of the holes 17 and 18 while the other 15b of its edges is brought to bear against the opening of the hole 6 during the depression of the key 15.

La clavette 15 est équipée d'un têton 20 faisant saillie latéralement de son extrémité située du côté opposé à la branche latérale 2b dans laquelle est ménagé le trou 17, la largeur de ce dernier étant telle qu'il permette le passage et le coulissement de la clavette 15 mais pas le passage du têton 20 alors que la largeur des trous 16 et 18 est telle qu'elle permet le passage à travers eux tant de la clavette 15 que du têton 20.The key 15 is equipped with a pin 20 projecting laterally from its end situated on the side opposite to the lateral branch 2b in which the hole 17 is formed, the width of the latter being such that it allows the passage and the sliding of the key 15 but not the passage of the pin 20 while the width of the holes 16 and 18 is such that it allows the passage through them both of the key 15 and of the pin 20.

La figure 2 représente une bande métallique 30 qui est symétrique de part et d'autre de ses axes médians longitudinal et transversal, à l'exception du fait que, parmi les quatre trous 36,37 et 38 qu'elle comprend, les trous 37 et 38 diffèrent dans leurs dimensions.FIG. 2 represents a metal strip 30 which is symmetrical on either side of its longitudinal and transverse median axes, except for the fact that, among the four holes 36, 37 and 38 which it comprises, the holes 37 and 38 differ in their dimensions.

La bande 30 comprend une partie centrale 30a et des parties d'extrémité 30b séparées de la partie centrale par des parties intermédiaires 30c.The strip 30 comprises a central part 30a and end parts 30b separated from the central part by intermediate parts 30c.

La partie 30a comprend les trous 36 et, en son milieu, deux évidements rectangulaires 35 ménagés dans ses bords longitudinaux. De part et d'autre de ces évidements 35, ces derniers sont obliques et convergent l'un vers l'autre en direction des parties 30c puis divergent après celles-ci suivant le même angle. L'une des parties 30b comprend le trou 37 et l'autre le trou 38.The part 30a comprises the holes 36 and, in its middle, two rectangular recesses 35 formed in its longitudinal edges. On either side of these recesses 35, the latter are oblique and converge towards one another in the direction of the parts 30c then diverge after the latter at the same angle. One of the parts 30b comprises the hole 37 and the other the hole 38.

La bande 30 est destinée à être pliée pour permettre l'obtention de la pièce 2.The strip 30 is intended to be folded to allow the production of part 2.

Il apparaît clairement sur les figures 1,3 et 4 que la partie 30a de la bande 30, après repliage sur elle même autour de son axe médian transversal, constitue les branches centrales 2a de la pièce 2 et le fond de la gorge 7 tandis que ses parties 30b constituent les branches 2b et ses parties 30c les parties planes 2c. Les trous 36,37 et 38 constituent respectivement les trous 16,17 et 18 et les bords obliques de la bande 30 constituant les bords latéraux convergents 11 des branches 2a et 2b de la pièce 2. Les bords 35a des évidements 35 permettent de réaliser les épaulements 10.It clearly appears in FIGS. 1, 3 and 4 that the part 30a of the strip 30, after folding over itself around its transverse median axis, constitutes the central branches 2a of the part 2 and the bottom of the groove 7 while its parts 30b constitute the branches 2b and its parts 30c the flat parts 2c. The holes 36, 37 and 38 respectively constitute the holes 16, 17 and 18 and the oblique edges of the strip 30 constituting the converging lateral edges 11 of the branches 2a and 2b of the part 2. The edges 35a of the recesses 35 make it possible to produce the shoulders 10.

En pratique, l'enfoncement en force de la clavette 15 permet de réaliser le blocage de la pièce 2 sur la collerette 5 et de presser les surfaces 2c contre la paroi du montant 4. La clavette 15 ne peut être séparée de la pièce 2 grâce au têton 21 et au trou 17, et reste toujours à poste, la clavette 15 pouvant être mise en position d'attente le long de la traverse 3 grâce à la conformation de la pièce 2, comme cela est représenté sur la figure 3 en traits mixtes, position qui facilite son engagement ultérieur à travers la pièce 2 et qui facilite le stockage et le rangement des traverses 3.In practice, the forced insertion of the key 15 makes it possible to block the part 2 on the flange 5 and to press the surfaces 2c against the wall of the upright 4. The key 15 cannot be separated from the part 2 by virtue of to the pin 21 and to the hole 17, and always remains stationary, the key 15 being able to be placed in the standby position along the cross-member 3 by virtue of the conformation of the part 2, as shown in FIG. 3 in lines mixed, position which facilitates its subsequent engagement through the part 2 and which facilitates the storage and arrangement of the sleepers 3.

Les parties 2c constituent de larges sones d'appui de la pièce 2, propres à éliminer tout jeu entre la traverse 3 et le montant 4 lorsqu'ils sont assemblés. Les branches 2b, obliques, jouent le rôle de contreventement des parties 2c et permettent de répartir les efforts que subit la pièce 2.The parts 2c constitute large support sones of the part 2, capable of eliminating any play between the cross-member 3 and the upright 4 when they are assembled. The oblique branches 2b play the role of bracing of the parts 2c and make it possible to distribute the forces which the part 2 undergoes.

Les épaulements 10 permettent de réaliser des points de fixation supplémentaires de la pièce 2 à la traverse 3, afin de parfaitement solidariser ses branches centrales 2a à celle-ci.The shoulders 10 make it possible to provide additional attachment points for the part 2 to the cross-member 3, in order to perfectly secure its central branches 2a to the latter.

Les bords obliques convergents de la pièce 2 permettent le montage de plusieurs traverses 3 sur la collerette 4 avec des angles minimum d'écartement entre elles de 45°.The converging oblique edges of the part 2 allow the mounting of several crosspieces 3 on the flange 4 with minimum angles of spacing between them of 45 °.

Grâce à son obtention à partir de la bande 30 et à l'existence de ses volumes libres 8, la pièce est simple à réaliser et particulièrement légère, tout en étant très résistante du fait de ses différents points de fixation.Thanks to its obtaining from the strip 30 and the existence of its free volumes 8, the part is simple to produce and particularly light, while being very resistant due to its different fixing points.

Claims (8)

1 - Pièce d'assemblage pour éléments longiformes, du type fixée à une extrémité d'un élément et comprenant une gorge destinée à permettre son engagement autour d'un organe complémentaire de fixation porté par un autre élément devant être fixé à l'élément auquel est fixée la pièce, caractérisée en ce qu'elle présente, en section transversale, un profil en forme de M dont les deux branches centrales (2a), qui sont séparées des branches latérales (2b) par des volumes libres (8), délimitent entre elles la gorge (7) précitée et dont les branches latérales (2b) permettent la fixation de la pièce (2) à l'élément longiforme (3) qu'elle équipe. 1 - Assembly piece for elongated elements, of the type fixed to one end of an element and comprising a groove intended to allow its engagement around a complementary fixing member carried by another element to be fixed to the element to which the part is fixed, characterized in that it has, in cross section, an M-shaped profile whose two central branches (2a), which are separated from the lateral branches (2b) by free volumes (8), delimit between them the aforementioned groove (7) and whose lateral branches (2b) allow the attachment of the part (2) to the elongated element (3) which it equips. 2 - Pièce d'assemblage selon la revendication 1, caractérisée en ce qu'elle est constituée par une bande métallique (30) pliée de manière à délimiter ses branches (2a,2b). 2 - assembly part according to claim 1, characterized in that it is constituted by a metal strip (30) folded so as to delimit its branches (2a, 2b). 3 - Pièce d'assemblage selon la revendication 1 ou 2, caractérisée en ce que la pièce (2) comprend deux parties planes (2c), situées dans un même plan et orientées perpendiculairement à la gorge (7) de part et d'autre de l'ouverture de laquelle elles débordent largement, la profondeur de la gorge (7) étant prévue pour qu'en position assemblée de la pièce (2) et de son organe complémentaire de fixation (5) précité, les parties planes (2c) viennent s'appuyer contre la paroi de l'élément longiforme (4) portant l'organe complémentaire de fixation (5). 3 - connecting piece according to claim 1 or 2, characterized in that the piece (2) comprises two flat parts (2c), located in the same plane and oriented perpendicular to the groove (7) on either side from the opening of which they extend well beyond, the depth of the groove (7) being provided so that in the assembled position of the part (2) and its aforementioned complementary fixing member (5), the flat parts (2c) come to bear against the wall of the elongated element (4) carrying the complementary fixing member (5). 4 - Pièce d'assemblage selon l'une des revendications 1 à 3, caractérisée en ce que la pièce (2) est destinée à être fixée à un élément longiforme (3) creux intérieurement et la partie de ses branches centrales (2a) qui délimite le fond de la gorge (7) est conformée pour être engagée dans la cavité de l'élément (3) lorsque la pièce (2) est fixée à celui-ci, cette partie étant prolongée latéralement par des épaulements (10) destinés à venir en appui contre le bord de l'ouverture de l'élément (3). 4 - connecting piece according to one of claims 1 to 3, characterized in that the piece (2) is intended to be fixed to a longiform element (3) hollow internally and the part of its central branches (2a) which delimits the bottom of the groove (7) is shaped to be engaged in the cavity of the element (3) when the part (2) is fixed thereto, this part being extended laterally by shoulders (10) intended to bear against the edge of the opening of the element (3). 5 - Pièce d'assemblage selon l'une des revendications 1 à 4, caractérisée en que la pièce (2) équipe l'extrémité d'une traverse (3) et les bords latéraux (11) de ses branches (2a,2b) convergent du côté opposé à la traverse (3). 5 - Connecting piece according to one of claims 1 to 4, characterized in that the piece (2) equips the end of a crosspiece (3) and the lateral edges (11) of its branches (2a, 2b) converge on the side opposite the crosspiece (3). 6 - Pièce d'assemblage selon l'une des revendications 1 à 5, caractérisée en ce que la pièce (2) comprend des trous (16,17,18) prévus pour, lorsque son engagement sur son organe complémentaire de fixation (5) est réalisé, coïncider avec un trou (6) que comprend cet organe (5), de manière à permettre l'introduction en force à travers eux d'une clavette de verrouillage (15) en forme de coin, dont un bord (15a) est en appui contre la pièce (2) et dont l'autre bord (15b) est en appui contre l'organe (5), afin qu'elle permette de réaliser, lorsqu'elle est enfoncée, le blocage de la pièce (2) sur l'organe (5). 6 - Connecting piece according to one of claims 1 to 5, characterized in that the piece (2) comprises holes (16,17,18) provided for, when its engagement on its complementary fixing member (5) is made, coincide with a hole (6) that includes this member (5), so as to allow the introduction in force through them of a key wedge-shaped lock (15), one edge (15a) of which rests against the part (2) and the other edge of which (15b) bears against the member (5), so that it allows when pressed, block the part (2) on the member (5). 7 - Pièce d'assemblage selon la revendication 6, caractérisée en ce que la clavette (15) comporte, à proximité de son extrémité la moins large, un têton (20) en saillie formant goupille et le trou (17) ménagé dans la branche latérale (2b) de la pièce (2) située du côté opposé au têton (20) est prévu pour laisser passer la clavette (15) mais pas le têton (20), alors que les autres trous (16,18) sont prévus pour laisser passer la clavette (15) et le têton (20). 7 - connecting piece according to claim 6, characterized in that the key (15) comprises, near its narrower end, a stud (20) projecting forming a pin and the hole (17) formed in the branch lateral (2b) of the part (2) located on the opposite side to the stud (20) is intended to allow the key (15) to pass but not the stud (20), while the other holes (16,18) are provided for pass the key (15) and the pin (20). 8 - Pièce d'assemblage selon la revendication 6 ou 7, caractérisée en ce qu'elle est conformée pour permettre le positionnement de la clavette (15) le long de l'élément longiforme qu'elle équipe. 8 - assembly part according to claim 6 or 7, characterized in that it is shaped to allow the positioning of the key (15) along the elongated element which it equips.
EP91420114A 1990-04-04 1991-04-03 Connecting piece for longitudinal elements Expired - Lifetime EP0451068B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91420114T ATE92568T1 (en) 1990-04-04 1991-04-03 CONNECTING PIECE FOR LONG ELEMENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9004769A FR2660708B1 (en) 1990-04-04 1990-04-04 ASSEMBLY PART FOR LONGIFORM ELEMENTS.
FR9004769 1990-04-04

Publications (2)

Publication Number Publication Date
EP0451068A1 true EP0451068A1 (en) 1991-10-09
EP0451068B1 EP0451068B1 (en) 1993-08-04

Family

ID=9395747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420114A Expired - Lifetime EP0451068B1 (en) 1990-04-04 1991-04-03 Connecting piece for longitudinal elements

Country Status (6)

Country Link
US (1) US5217314A (en)
EP (1) EP0451068B1 (en)
AT (1) ATE92568T1 (en)
DE (1) DE69100219T2 (en)
ES (1) ES2027934T3 (en)
FR (1) FR2660708B1 (en)

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WO1998044220A1 (en) * 1997-04-02 1998-10-08 Aluma Enterprises Inc. Scaffolding connector
WO1999028573A1 (en) * 1997-12-01 1999-06-10 Plettac Ag Connecting device for a bearer
EP0931894A1 (en) * 1998-01-26 1999-07-28 Miguel Angel Diaz Garcia Arm for securing structures
EP3712348A1 (en) * 2019-03-20 2020-09-23 ALTRAD plettac assco GmbH Assembly

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IT1317132B1 (en) * 2000-03-08 2003-05-27 Ponteggi Dalmine Soc CLAMP FOR SCAFFOLDING AND PROCEDURE FOR ITS REALIZATION
WO2001075248A1 (en) * 2000-04-04 2001-10-11 Pieter Wouter Booysen Scaffolding
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US6575652B2 (en) * 2001-01-16 2003-06-10 Kurt F. Krauss Structural couplings and system
SE521500C2 (en) * 2001-03-27 2003-11-04 Pluseight Safety Ab Device for personal protection at scaffolding and method for protecting persons by such device
WO2004025049A1 (en) * 2002-08-29 2004-03-25 Verenigde Bedrijven Van Thiel (Van Thiel United) B.V. Scaffold, and girder intended for such a scaffold, and method for building a scaffold
SE525339C2 (en) * 2002-09-27 2005-02-01 Pluseight Safety Ab Device for personal protection at scaffolding
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CA2531430C (en) * 2005-12-23 2013-10-08 Etobicoke Ironworks Limited Scaffold deck and self-locking hook
US8206052B1 (en) * 2009-06-22 2012-06-26 Excel Modular Scaffold And Leasing Corporation Modular scaffold horizontal end connector
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DE102011001796A1 (en) 2011-04-05 2012-10-11 Wilhelm Layher Verwaltungs-Gmbh scaffolding post
WO2012163340A1 (en) 2011-06-01 2012-12-06 Wilhelm Layher Verwaltungs-Gmbh Arrangement of a scaffolding component and of a vertical scaffolding element
MX360841B (en) * 2011-11-02 2018-11-20 Saferite Platforms Inc Pivoting horizontal and vertical scaffold members and a method of erecting an offset scaffold platform.
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US5961240A (en) * 1997-04-02 1999-10-05 Aluma Enterprises Inc. Scaffolding connector
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US6406211B1 (en) 1997-12-01 2002-06-18 Plettac Ag Connecting device for a bearing arm
EP0931894A1 (en) * 1998-01-26 1999-07-28 Miguel Angel Diaz Garcia Arm for securing structures
EP3712348A1 (en) * 2019-03-20 2020-09-23 ALTRAD plettac assco GmbH Assembly

Also Published As

Publication number Publication date
ES2027934T1 (en) 1992-07-01
ES2027934T3 (en) 1993-12-16
US5217314A (en) 1993-06-08
DE69100219T2 (en) 1994-05-19
EP0451068B1 (en) 1993-08-04
FR2660708A1 (en) 1991-10-11
FR2660708B1 (en) 1993-05-21
DE69100219D1 (en) 1993-09-09
ATE92568T1 (en) 1993-08-15

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