EP0491634B1 - Dispositif de fixation pour planchers d'échafaudages - Google Patents

Dispositif de fixation pour planchers d'échafaudages Download PDF

Info

Publication number
EP0491634B1
EP0491634B1 EP91420451A EP91420451A EP0491634B1 EP 0491634 B1 EP0491634 B1 EP 0491634B1 EP 91420451 A EP91420451 A EP 91420451A EP 91420451 A EP91420451 A EP 91420451A EP 0491634 B1 EP0491634 B1 EP 0491634B1
Authority
EP
European Patent Office
Prior art keywords
members
frames
hooks
cross
notches
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 - Lifetime
Application number
EP91420451A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0491634A1 (fr
Inventor
André Peronnier
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.)
CONSTRUCTION DE MATERIEL POUR LE BATIMENT ET L'INDUSTRIE COMABI
Original Assignee
CONSTRUCTION DE MATERIEL POUR LE BATIMENT ET L'INDUSTRIE COMABI
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 CONSTRUCTION DE MATERIEL POUR LE BATIMENT ET L'INDUSTRIE COMABI filed Critical CONSTRUCTION DE MATERIEL POUR LE BATIMENT ET L'INDUSTRIE COMABI
Publication of EP0491634A1 publication Critical patent/EP0491634A1/fr
Application granted granted Critical
Publication of EP0491634B1 publication Critical patent/EP0491634B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/154—Non-detachably fixed and secured connections between platform and scaffold
    • 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
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/28—Clips or connections for securing boards
    • 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
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/28—Clips or connections for securing boards
    • E04G2007/285—Clips or connections for securing boards specially adapted for toe boards

Definitions

  • the present invention relates to a scaffolding comprising load-bearing structures, constituted by prefabricated frames and to which scaffolding floors are fixed.
  • the device which is the subject of the invention maintains the scaffolding floors in position without additional means, while allowing the dismantling and mounting of these floors on an erected support structure.
  • the scaffolding currently used generally consists, on the one hand, of a load-bearing metal structure formed by prefabricated elements (frames, rails, posts, diagonals) or by assemblies of tubes and assembly collars, and on the other share, self-supporting floors or horizontal planks.
  • the connection of the floors with the supporting structure must ensure the resumption of the vertical forces due to the load supported by the floors, the maintenance in position of the floors when they are subjected to a vertical force due to the wind, and the transmission of the horizontal forces in the structure.
  • Scaffolding floors are generally fitted, at their ends, with hooks positioned on the horizontal crosspieces of the supporting structure.
  • Vertical immobilization upwards of the floors is generally ensured either by a locking device integrated into the hooks or the floor, or by the lower cross member of an upper frame of the supporting structure, coming to block the hooks in the upper cross member of a lower frame of the same structure.
  • the latter solution imposes a very precise assembly order, the floor must be placed on the lower frames before the installation of the upper frames, and it excludes in particular the dismantling or adding of the floors once the structure is assembled.
  • FIG. 1 of the accompanying schematic drawing partially shows a scaffolding structure of a type currently very common.
  • This structure consists of closed frames comprising in particular an upper cross member 1 and a lower cross member 2, joined by tubular posts 3,4.
  • the upper cross member 1, belonging for example to a lower frame 5, has a "U" section with wings facing upwards.
  • the lower cross member 2 belonging for example to an upper frame 6 is generally constituted by a tube of rectangular section; it can also be constituted by a square section tube, or by a "U" profile whose wings are turned downwards.
  • the hooks 7 of a floor 8 rest on a wing of the upper cross member 1 of the lower frame 5, and are blocked because the width of the lower cross member 2 of the upper frame 6 is equal to, or at least substantially equal to, the width of the upper cross member 1, thus preventing the hooks 7 from being released upwards.
  • the lower ends of the tubular posts 4 of the upper frame 6 are engaged in the upper ends of the tubular posts 3 of the lower frame 5; pins 9 cross horizontally the nested parts of the posts 3 and 4, and provide the connection between the lower 5 and upper frames 6.
  • the hooks 7 are thus trapped between the crosspieces 1 and 2, in other words that the floor 8 is itself trapped between the lower 5 and upper 6 frames, and that it is not possible to remove or add such a floor 8 to the erected structure, without at least partially dismantling this structure.
  • the invention aims to allow the removal and addition of scaffolding floors without dismantling the supporting structure, in particular to be able to move and reuse one of the floors depending on the work to be done, while ensuring good immobilization of the floors.
  • the subject of the present invention is a scaffolding comprising load-bearing structures constituted by prefabricated frames and to which scaffolding floors are fixed, equipped at their ends with hooks turned downwards and intended to cooperate with upper horizontal crosspieces of frames belonging to the supporting structure, the scaffolding being characterized in that lower horizontal crosspieces of frames belonging to the same supporting structure limit the upward movement of the hooks supported on the upper crosspieces, in that the upper crosspieces of the frames have on their sides notches formed in correspondence with the positions of the hooks of the floors to be fixed and provided for receiving these hooks, and in that the lower crosspieces of the frames, of width less than that of the upper crosspieces, comprise laterally projecting parts located in correspondence with the positions of the notches of the upper crossmembers, so that a hook engaged in a notch of an upper crossmember is surmounted by a projecting part of a lower crossmember which limits its direct movement upwards, but can be disengaged from the notch and from the corresponding projecting part by a displacement comprising a
  • a floor can therefore be removed by a successively vertical, then lateral and again vertical displacement, and of course by a succession of reverse movements it is possible to set up a floor, this always without separating the upper frames from the lower frames of the load-bearing structure.
  • the presence of a longitudinal plinth of the floor, cooperating with a fixing lug integral with a post of the upper frame is sufficient to laterally block the floor in normal times and thus avoids the possibility of releasing this floor accidentally out of the notches.
  • the aforementioned notches are formed on the upper edge of the wings of these section profiles in "U".
  • the lower crosspieces of the frames of the supporting structure are constituted by profiles having an inverted "U" section, with downwardly facing wings which locally include outwardly facing deformations forming said projecting parts, which avoids any patches.
  • the invention uses a support structure of a generally known type consisting of closed frames, comprising in particular an upper cross member 1 and a lower cross member 2, joined by posts tubular 3,4.
  • a support structure of a generally known type consisting of closed frames, comprising in particular an upper cross member 1 and a lower cross member 2, joined by posts tubular 3,4.
  • a lower frame 5 and an upper frame 6, superimposed and assembled together by fitting their respective posts 3,4, and a scaffolding floor 8 which must be fixed, by one end, at the level of the junction between the two frames 5,6.
  • the end of the floor 8 is provided, for its fixing, with two hooks 7 facing downwards, the hooks 7 here being obtained from a flat profile folded adequately.
  • the upper cross member 1 of the lower frame 5 is constituted by a section having a "U" section, with two parallel wings 10, located in vertical planes and facing upwards.
  • Each wing 10 has two notches 11 which are arranged in correspondence with the positions of the hooks 7 of the floor 8 and which open onto the upper edge of this wing 10, the width of the notches 11 being in relation to that of the hooks 7.
  • the lower cross member 2 of the upper frame 6 is produced in the form of a tube of rectangular section, the width d of which is less than the width D of the upper cross member 1 of the lower frame 5.
  • a flat iron 12 is welded under the face lower of the lower cross member 2.
  • the flat iron 12 has on each of its longitudinal edges two lugs 13, projecting laterally, located in correspondence with the positions of the notches 11 of the upper cross member 1; in line with the lugs 7, the flat iron 12 has locally an increased width, substantially equal to that D of the upper cross member 1.
  • each hook 7 can be released voluntarily from the corresponding notch 11 by a slight vertical displacement, followed by a lateral displacement which shifts the hook 7 relative to the lug 13 surmounting this notch 11. Due to the reduced width d of the upper cross member 2, the hook 7 then finds a free space above it, making it possible to move it again upwards, without encountering any obstacle. Thus, the end of the floor 8 can be entirely released. Naturally, the same operation can be carried out simultaneously at the two ends of the floor 8 fixed, by the same device, so that the floor can be removed from the support structure without the need to separate the lower frames 5 and upper 6.
  • a reverse movement sequence also comprising a lateral component, makes it possible to engage the hooks 7 in the notches 11 without removing the upper frame 6 from the lower frame 5, therefore to add a floor 8 to a pre-existing supporting structure without dismantling this structure.
  • a lateral blocking of the end of the floor 8, fixed to the support structure by the device described above, is ensured by taking advantage of a longitudinal plinth 14 of this floor 8.
  • the plinth 14 is extended by a short horizontal rod 15, which is engaged in a fixing lug 16 secured to a post 4 of the upper frame 6.
  • the floor 8 is immobilized laterally in normal times, and it cannot be released .
  • FIG. 7 represents a variant, concerning the production of the lower cross member 2 of a frame 6.
  • the lower cross member 2 is formed here by a section having an inverted “U” section, the current width of this cross member 2 being , as before, lower than that of the upper crossmember (not shown).
  • the wings 17 of the profile, facing the bottom, locally contain deformations 18 turned outwards, which form projecting parts producing the equivalent of the lugs 13 of the embodiment described above, the deformations 18 being located in correspondence with the positions of the notches of the crosspiece superior.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP91420451A 1990-12-17 1991-12-16 Dispositif de fixation pour planchers d'échafaudages Expired - Lifetime EP0491634B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9016583A FR2670525A1 (fr) 1990-12-17 1990-12-17 Dispositif de fixation pour planchers d'echafaudages.
FR9016583 1990-12-17

Publications (2)

Publication Number Publication Date
EP0491634A1 EP0491634A1 (fr) 1992-06-24
EP0491634B1 true EP0491634B1 (fr) 1994-09-28

Family

ID=9403917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420451A Expired - Lifetime EP0491634B1 (fr) 1990-12-17 1991-12-16 Dispositif de fixation pour planchers d'échafaudages

Country Status (3)

Country Link
EP (1) EP0491634B1 (enrdf_load_stackoverflow)
DE (1) DE69104336T2 (enrdf_load_stackoverflow)
FR (1) FR2670525A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9626299D0 (en) * 1996-12-18 1997-02-05 Sgb Services Plc Improvements in or relating to scaffolding
DE19711498A1 (de) * 1997-03-19 1998-11-26 Peri Gmbh Zerlegbares Gerüst mit auf Querstreben angeordneten Bodenplatten
GB9710042D0 (en) * 1997-05-16 1997-07-09 Sgb Services Plc Improvements in or relating to a scaffolding component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1684250B1 (de) * 1967-04-14 1971-03-04 Kurt Gester Schiebesicherung gegen Abheben von Arbeitsbuehnen an Baugeruesten
FR2307099A1 (fr) * 1975-04-11 1976-11-05 Self Lock Echafaudages Echafaudage prefabrique
DE2724932C2 (de) * 1977-06-02 1982-06-16 Eberhard 7129 Güglingen Layher Schiebesicherung gegen Abheben von Rahmentafeln für Metallrohrgerüste

Also Published As

Publication number Publication date
EP0491634A1 (fr) 1992-06-24
DE69104336D1 (de) 1994-11-03
DE69104336T2 (de) 1995-02-23
FR2670525A1 (fr) 1992-06-19
FR2670525B1 (enrdf_load_stackoverflow) 1993-02-26

Similar Documents

Publication Publication Date Title
EP0076774B1 (fr) Echafaudage de type tubulaire, procédé de montage et traverses horizontales de ces échafaudages
FR3013066A1 (fr) Plateforme de travail en encorbellement convertible
EP0491634B1 (fr) Dispositif de fixation pour planchers d'échafaudages
EP2767499B1 (fr) Dispositif d'éclissage pour lier deux éléments de mât et ensemble comprenant deux éléments de mât et de tels dispositifs d'éclissage
FR3050749A1 (fr) Module pour realiser un escalier de chantier tournant, ensemble comportant au moins un tel module et escalier de chantier comportant au moins un tel ensemble
FR2732706A1 (fr) Garde-corps d'echafaudage
EP0364358B1 (fr) Support de siège pour véhicule de transport en commun et siège equipe de ce support
EP0088363B1 (fr) Dispositif d'accrochage d'un panneau de tubes d'échange de chaleur
EP3619379B1 (fr) Ensemble d'elements de structure destines a former un parking aerien a etages, et parking aerien a etages correspondant
FR2887574A1 (fr) Garde-corps d'echafaudage a montage en securite
FR2937354A1 (fr) Structure d'echafaudage integrant un escalier
EP2085537B1 (fr) Procédé de montage et démontage en sécurité d'un échafaudage roulant, lisses de montage de sécurité utilisées et échafaudage obtenu
FR2919009A1 (fr) Echafaudage avec garde-corps de protection collective.
FR2866666A1 (fr) About d'echafaudage
FR2478712A1 (fr) Echafaudage en tubes d'acier
FR2949490A1 (fr) Garde-corps d'echafaudage a montage securise
EP2299027B1 (fr) Structure d'échafaudage, en particulier d'échafaudage de façade
FR2529931A1 (fr) Element de construction d'echafaudage prefabrique a compensation automatique de jeux
FR2929306A1 (fr) Crochet a verrou integre pour element support de banche
EP0014623A1 (fr) Entretoisement d'échafaudage
EP1493686A1 (fr) Soubassement faisant office de berceau pour le positionnement d'un conteneur d'une benne ou similaire
FR2740514A1 (fr) Element retenu par gravite pour edifice tubulaire
EP2554772A2 (fr) Porte basculante
FR3068376A1 (fr) Systeme de fixation d'un raidisseur a un echafaudage
FR2683245A1 (fr) Plateforme en encorbellement amovible, notamment pour circulation ou coffrage dans les ouvrages en beton.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB SE

17P Request for examination filed

Effective date: 19920804

17Q First examination report despatched

Effective date: 19930723

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB SE

REF Corresponds to:

Ref document number: 69104336

Country of ref document: DE

Date of ref document: 19941103

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19941124

EAL Se: european patent in force in sweden

Ref document number: 91420451.6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20071205

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20071212

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20071213

Year of fee payment: 17

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20081216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081217