EP0004806B1 - Eléments d'échafaudage munis d'un dispositif de raccordement - Google Patents

Eléments d'échafaudage munis d'un dispositif de raccordement Download PDF

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Publication number
EP0004806B1
EP0004806B1 EP19790400187 EP79400187A EP0004806B1 EP 0004806 B1 EP0004806 B1 EP 0004806B1 EP 19790400187 EP19790400187 EP 19790400187 EP 79400187 A EP79400187 A EP 79400187A EP 0004806 B1 EP0004806 B1 EP 0004806B1
Authority
EP
European Patent Office
Prior art keywords
scaffolding
tube
spigot
socket
cross
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
EP19790400187
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0004806A1 (fr
Inventor
Louis Jean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somefran D'exploitation Des Brevets Mefran Ste
Original Assignee
Somefran D'exploitation Des Brevets Mefran Ste
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Somefran D'exploitation Des Brevets Mefran Ste filed Critical Somefran D'exploitation Des Brevets Mefran Ste
Publication of EP0004806A1 publication Critical patent/EP0004806A1/fr
Application granted granted Critical
Publication of EP0004806B1 publication Critical patent/EP0004806B1/fr
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Classifications

    • 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
    • E04G7/301—Scaffolding bars or members with non-detachably fixed coupling elements for connecting bars or members which are parallel or in end-to-end relation

Definitions

  • the invention generally relates to scaffolding elements, such as for example scaffolding frames, comprising a connection device for connecting the elements together.
  • the scaffolding consists of elements, which can be identical or different, mounted one after the other, and which for this include tubular elements which come to fit on or in elements associated tubulars.
  • scaffolding elements It is often necessary, with such scaffolding elements, to provide more or less simple systems making it possible to position and immobilize the elements in rotation with respect to one another. It is also often necessary to make special arrangements to prevent scaffolding elements supplied by one manufacturer from being mixed and used with scaffolding elements supplied by other manufacturers.
  • the regulations in force impose certain standards, for safety, on these scaffolding elements, and it is particularly inadvisable to use indifferently by mixing more or less corresponding elements supplied by various manufacturers, because of the differences existing in these elements between the various security, locking, blocking, positioning systems, etc. used in these elements.
  • a scaffold made up of disparate elements is much less safe than a scaffold made up of elements supplied by the same manufacturer, which have been designed to be assembled together.
  • scaffolding elements comparable to frames, include a connection device constituted by female and male parts provided at each end. parallel tubes of said frames, a female and male part being provided at each end thereof.
  • connection device constituted by female and male parts provided at each end. parallel tubes of said frames, a female and male part being provided at each end thereof.
  • French Patent No. 1,385,704 it is already known to assemble tubular elements end to end by fitting a male part into a female part, this assembly being locked in rotation by cooperation between two longitudinal grooves provided on said said female and male connection parts.
  • the invention proposes a device for connecting scaffolding elements which simultaneously makes it possible to solve all these problems.
  • the invention provides scaffolding elements, such as for example scaffolding frames each comprising two identical and parallel sections of tubes transversely spaced and rigidly connected together, the two opposite ends of each section of tube forming respectively a male part and a female part, intended to be connected by interlocking respectively to a female part and to a male part of another adjacent scaffolding element, the two sections of tubes of each element being arranged head to tail, that the male part of the end of one tube is at the level of the female part of the end of the other tube and vice versa, characterized in that each male part is formed by a constriction so as to have a slightly smaller external diameter to the internal diameter of the female part, said female parts of said element each have at least one longitudinal groove and a transverse groove or groove, e t said male parts of said element each have at least one longitudinal groove, said longitudinal grooves or transverse groove being formed by deformation, for example by shrinking, knurling or drawing, of the above-mentioned section of tube, so that the cross-sectional contour of
  • the part of a scaffolding shown in FIG. 1 essentially comprises a scaffolding frame 10, two scaffolding elements 11 respectively forming a starting element and a crowning element of the scaffolding, an upper element 12 of a class type - .sique, and two starting tubes 13 comprising a base 14 of support on the ground.
  • Each element 11 essentially comprises a transverse bar 15 which is provided at its ends with two sleeves or sections of cylindrical tubes 16 extending perpendicular to the bar, and which are intended to allow the element 11 to slide on the two tubes. departure 13.
  • means not shown make it possible to immobilize the element 11 on the tubes 13 at the desired height.
  • each element 11 is provided with two sections of tubes 17 and 18 extending perpendicular to the crossbar 15, which are spaced apart from each other by a predetermined distance, and which form a male part and a female part respectively.
  • These sections of tubes 17 and 18 are intended to allow the mounting of the scaffolding frame 10, which consists essentially of two parallel and identical tubes 19 each ending in a male part 19 'and a female part 19 ".
  • the two tubes 19 are rigidly connected to each other in any suitable manner, for example by a spacer 20 substantially in the form of a U as shown in FIG. 1.
  • the two tubes 19 can be placed head to tail, that is to say that the lower end of a tube 19 forming a male part 19 ′ is at the same level as the lower end of the other tube 19 forming a female end 19 ".
  • the female part 19 'of a tube 19 of the frame 10 is intended to be fitted onto the male part 17 of the lower element 11 starting from the scaffold, while the lower male part 19' of the other tube 19 of the frame 10 intended to be fitted into the female part 18 of this lower element 11.
  • a crowning element 11, identical to the lower element 11 will be mounted on the upper part of the frame 10 while being turned over as shown in FIG. 1, and its two sleeves 16 will allow the mounting of the upper element 12 including the two parallel tubes 21 can slide inside the sleeves 16 and then be locked or locked in position by means of locking or blocking means of a conventional type, not shown. It is understood that the adjustment of the height of the upper element 12 relative to the ground is carried out very easily, over a fairly wide range, due to the sliding mounting of the starting elementll on the tubes 13, and the sliding mounting of the upper element 12 on the crowning element 11.
  • FIG. 2 is an enlarged sectional view of the lower male part 19 ′ of a tube 19 of the frame 10 fitted into the female part 18 of the scaffold starting element 11.
  • the male part 19 ′ and the female part 18 are formed in a manner which will be described in great detail here, from cylindrical tubes with circular section, which are identical, that is to say which have the same 'outer diameter and the same thickness.
  • the male part 19 ′ comprises a first part 25 which is formed for example by constriction from the tube 19, and which is also cylindrical with circular section, with an outside diameter which is very slightly less than the inside diameter of the starting tube, so as to be able to be fitted substantially without play or with a relatively very small play inside a starting tube.
  • the male part 19 ′ then comprises a second part 26, which extends to the end of the male part, and which is formed from the constricted part 25 with longitudinal grooves 27, for example three in number regularly or equiangularly distributed around the longitudinal axis 28 of the tube 19, these three longitudinal grooves 27 can be formed by deformation of the part 26 inwards, for example by stamping or knurling.
  • the male part 19 ′ finally ends in a flange 29 folded inwards, forming a part of reduced diameter.
  • the female part 18 firstly comprises at its end a cylindrical tubular part 30 with circular section, having the same outside diameter and the same inside diameter as the starting tube. This part 30 extends over a height substantially equal to the height of the aforementioned constricted part 25 of the male part 19 '.
  • the female part 18 then comprises a part 31, which is formed with respect to the cylindrical part with circular section 30 with longitudinal grooves 32, corresponding to the longitudinal grooves 27 of the male part 19 ', and which are also formed by deformation of the tube inward, for example by stamping or knurling.
  • the length of the part 31 is less than the length of the corresponding part 26 of the male part 19 '.
  • female part 18 comprises a new cylindrical part 33 of circular section, having the same outside diameter and the same inside diameter as the starting tube, that is to say which is not deformed.
  • This part 33 extends to a circular transverse groove or groove 34 formed by stamping, knurling or shrinking, which forms a projection inside the female part 18, at the level where the end flange 29 will come. of the part 19 'and which forms a stop for this rim 29.
  • the upper end of the female part 18 is flared as indicated at 35, to facilitate the fitting of the male part 19 '.
  • connection device thanks to the male and female parts which have just been described, allows positioning in translation and automatic angular orientation of the tubular scaffolding elements with respect to each other, the male part 19 'being fitted into the female part 18 until its rim 29 abuts on the groove 34 of the female part 18, and being immobilized in rotation inside this female part, due to the cooperation of the longitudinal grooves 27 and 32 formed in the male part and the female part respectively, this cooperation being substantially free of play.
  • blocking or locking means of a conventional type, will prohibit the separation of the male and female parts after fitting the male part into the female part.
  • FIG 7 there is shown a partial exploded perspective view of scaffolding spans formed with elements according to the invention.
  • the frames 10 are assembled vertically as shown, by fitting their male and female parts 19 'and 19 "into the female and male parts respectively of the upper and lower frames 10, braces 40 coming to be fixed on the tubes 19 of two frames 10 parallel and consecutive at the same horizontal level, to connect them together.
  • connection device according to the invention and the scaffolding elements by presenting application prohibit a user from mixing the scaffolding elements which have just been described with scaffolding elements originating from another manufacturer, and to build a scaffold from disparate elements from various sources.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP19790400187 1978-03-29 1979-03-21 Eléments d'échafaudage munis d'un dispositif de raccordement Expired EP0004806B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7809069A FR2421252A1 (fr) 1978-03-29 1978-03-29 Dispositif de raccordement de deux elements tubulaires, et elements d'echafaudage correspondants a cadres prefabriques
FR7809069 1978-03-29

Publications (2)

Publication Number Publication Date
EP0004806A1 EP0004806A1 (fr) 1979-10-17
EP0004806B1 true EP0004806B1 (fr) 1982-09-22

Family

ID=9206371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790400187 Expired EP0004806B1 (fr) 1978-03-29 1979-03-21 Eléments d'échafaudage munis d'un dispositif de raccordement

Country Status (8)

Country Link
EP (1) EP0004806B1 (es)
AT (1) AT360733B (es)
DE (1) DE2963709D1 (es)
DK (1) DK129179A (es)
ES (1) ES240796Y (es)
FR (1) FR2421252A1 (es)
GR (1) GR75063B (es)
PT (1) PT69402A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8803245U1 (de) * 1988-03-10 1989-05-24 AL-KO Kober AG, 8871 Kötz Rohr

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE432795B (sv) * 1982-01-25 1984-04-16 Goeteborg Staellningsgruppen Skarvanordning for langstreckta stellningselement i en byggnadsstellning eller dylikt
DE3546045C2 (de) * 1985-12-24 1996-05-02 Plettac Ag Gerüstrohr
DE3762002D1 (de) * 1986-03-20 1990-04-26 Siemens Ag Anordnung zum loesbaren verbinden von zwei rohrteilen.
DE69215670D1 (de) * 1991-04-26 1997-01-16 Adwin Products Pty Ltd Gerüsteinheit und arbeitsplattform
NL1000890C2 (nl) * 1995-07-27 1997-01-31 Sgb Holdings Buizensysteem in het bijzonder voor toepassing in een steiger- constructie, alsmede buis toepasbaar in het buizensysteem.
EP1219761B1 (de) * 2000-12-29 2007-12-05 ALTRAD plettac assco GmbH Gerüst mit einem Gerüstrohr
DE102008012142A1 (de) * 2008-03-01 2009-09-03 Weiss, Johannes Konsolstirngeländer
DE102009002854A1 (de) * 2009-05-06 2010-11-11 Doka Industrie Gmbh Gerüstelement, Gerüstsystem mit einem Gerüstelement und Verfahren zum Aufstellen eines Gerüstsystems
DE102011001796A1 (de) 2011-04-05 2012-10-11 Wilhelm Layher Verwaltungs-Gmbh Gerüststiel
WO2012163340A1 (de) 2011-06-01 2012-12-06 Wilhelm Layher Verwaltungs-Gmbh Anordnung eines gerüstbauteils und eines vertikalen gerüstelements
DE102019200770A1 (de) * 2019-01-23 2020-07-23 Peri Gmbh Gerüstelement mit einem Knotenpunkt, Baugerüst mit einem solchen Gerüstelement und Verfahren zum Herstellen eines Gerüstelements

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1385704A (fr) * 1963-12-24 1965-01-15 Procédé d'assemblage notamment pour éléments tubulaires et les assemblages conformes à ceux obtenus par l'application du présent procédé ou procédé similaire
FR91474E (fr) * 1966-09-06 1968-06-21 Echafaudage pliant et démontable
DE2257389A1 (de) * 1972-11-23 1974-06-20 Fix Betonbau Schalung Ruest Teckverbindung fuer stahlrohrstuetzen, rohrgerueste und dgl
GB1469807A (en) * 1974-05-31 1977-04-06 Zimm Zamm Ag Telescoping members

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8803245U1 (de) * 1988-03-10 1989-05-24 AL-KO Kober AG, 8871 Kötz Rohr

Also Published As

Publication number Publication date
AT360733B (de) 1981-01-26
EP0004806A1 (fr) 1979-10-17
PT69402A (fr) 1979-04-01
ATA205979A (de) 1980-06-15
DK129179A (da) 1979-09-30
DE2963709D1 (en) 1982-11-04
ES240796U (es) 1979-03-16
FR2421252A1 (fr) 1979-10-26
ES240796Y (es) 1979-08-16
FR2421252B1 (es) 1983-01-14
GR75063B (es) 1984-07-13

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