EP0730070B1 - Scaffold-platform - Google Patents
Scaffold-platform Download PDFInfo
- Publication number
- EP0730070B1 EP0730070B1 EP19960400426 EP96400426A EP0730070B1 EP 0730070 B1 EP0730070 B1 EP 0730070B1 EP 19960400426 EP19960400426 EP 19960400426 EP 96400426 A EP96400426 A EP 96400426A EP 0730070 B1 EP0730070 B1 EP 0730070B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support member
- board according
- platform
- end cross
- bars
- 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
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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
- 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
- E04G1/152—Platforms made of metal or with metal-supporting frame
-
- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
Definitions
- the present invention relates to realization of floors for walkways and more especially suspended walkways.
- gateways are generally made up of various elements assembled on site each of which is made of welded components.
- the object of the present invention is to make a floor for such a walkway, which is made without welding in order to reduce the cost, simplify assembly, and avoid constraints welding techniques.
- the structures concerned are advantageously made of aluminum, given the weight gain obtained by using this material.
- the welding technique has awkward consequences and expensive.
- the welding operation leads to the area concerned an annealing effect partially neutralizing but notably the improvement of elastic limit obtained by quality heat treatment aluminum used for this purpose.
- a modular floor of gateway composed by seamless assembly of two plinths, a set of basic elements and two sleepers end, said plinths being constituted by profiles which each have a side profile receiving the lateral ends of the basic elements, which side profile presents, according to a mode preferential, at least one projecting part fitting in at least one corresponding notch of these basic elements by involving these in the transverse stiffness of the gangway, is characterized in that the crosspieces are fixed at the end of the plinths by at minus one fixing point on each plinth in ensuring the coherence of the whole.
- Each plinth profile has at least a hollow lower longitudinal side profile which serves housing to an element intended to connect the plinth to two end ties or to other parts of the bridge.
- This lateral profile is preferably arranged on the outside of the bridge and, if it is unique, at the lower part of the plinth. It is hollow and can preferably, but not necessarily, a closed tubular section.
- the profile receives in this case, at each end and on a appropriate length, a thread intended to accommodate a screw to connect it to the transverse element corresponding end, as well as possibly a guardrail jamb arranged above the said baseboard.
- a rod threaded at least at its ends, is passed in the said profile over the entire length of it and protrudes at each end to serve as a connection by nut as it says above.
- the nuts located at both ends of the threaded rod are pressed against the ends of the hollow profile to place the plinth in a prestressed situation. This tightening can be done through the elements transverse end previously installed.
- the threaded rod can be replaced by a cable on the ends of which are fixed fasteners allowing equivalent blocking, with the same prestressing effect.
- the hollow profile located at the bottom plinth can be lined with a hollow profile parallel located at the top of the plinth and allowing to reinforce the bonding effect of the first profile.
- the described assembly above constitutes a rigid floor assembly got seamless from its components which is likely in particular to be connected to railings and stirrups to form a bridge, and in particular a suspended walkway.
- This set allows for besides, in a simple way, the prestressing of the bridge.
- the floor according to the invention consists of two side plinths 1, of a series of modular transverse elements 2 constituting the base of the floor, and of two elements transverse end 3.
- Figure 1 shows the respective arrangement of these elements for their assembly.
- Each plinth 1 is designed so as to constitute, in association with the other plinth, a connecting element of the basic transverse elements 2 between them and between the basic transverse elements 2 and the two transverse end elements 3.
- each plinth 1 is constituted by a profile which inwardly has a side profile hollow lower longitudinal 4 intended to serve as housing at the lateral end 5 of the basic elements 2 by setting these up and down.
- the basic transverse elements 2 are longitudinally engaged by sliding in the said side profiles 5 of plinths 1.
- the plinth profile 1 has two hollow longitudinal side profiles parallel to each other, one of which 6 is disposed at the lower part and the other 7 of which is disposed at the upper part of the profile.
- Each profile 6.7 receives, at its two ends 8.9 and over an appropriate length a internal thread intended to accommodate a screw 10.
- Each of the basic transverse elements 2 consists of a metal sheet whose edges transverse 11 are folded to take a shape in U, while its side edges 5 are intended for engage and slide in the interior profiles 4 of plinths 1.
- each plinth 1 has projections 13 on its underside intended to engage in corresponding notches 14 arranged in the lower part of the base 2 so that the set of basic elements 2 cooperates over its entire length in the connection of the two sides of the floor.
- the two transverse end elements 3 seamlessly connect the two plinths 1 to each of their ends. These transverse end elements 3 have a U shape whose branches allow a rigid connection with railings and baseboards. As shown in Figure 2, this link is provided by screws 10 passing through openings appropriate 15 branches of the cross member end and screwing into threaded ends 8.9 of the profiles 6.7 of each plinth 1.
- connection between the plinths and the elements transverse end is not secured by screws, but by a threaded rod or cable passing through each profile of the plinth and each blocking of its ends allows to exercise on the plinth a pre-stress effect.
- the floor assembly thus assembled shown in Figure 5 constitutes a rigid assembly obtained seamless, and which is likely to be connected to railings and stirrups to form a gangway suspended.
- FIG 6 there is shown the floor assembled, which received a pair of 16 figured railings dotted. As we can see the jamb 17 of the railing is fixed by the screw 10 fastening the transverse end element 3 and the plinth 1.
- FIG. 7 a variant has been represented. that the transverse end elements 3 U-shaped are extended upward to enhance their connection with the railings 16 and form brackets allowing the junction between several modules gateway.
- At least one of the transverse elements end 3 could also be extended upwards to form a hanger (not shown).
- each plinth 1 At the top of each plinth 1 an attachment profile 18 which cooperates with a profile corresponding 19 provided in the bottom rail 20 of the railing 16.
- the end legs of the railings are fixed on the corresponding branches end crosspieces, as described in reference to figure 6.
- the side external profiles 6,7 of the skirting board 1 are configured to present facing parts 21 forming slides which allow by sliding between the two profiles plaque (not shown in the drawing) with inscriptions or serving as a support for accessories.
Description
La présente invention concerne la réalisation de planchers pour des passerelles et plus particulièrement des passerelles suspendues.The present invention relates to realization of floors for walkways and more especially suspended walkways.
On connait, notamment du document FR-A-2 501 267, des structures constituant des passerelles suspendues, notamment pour les travaux sur chantiers. Ces passerelles sont généralement formées de divers éléments assemblés sur place dont chacun est constitué de composants soudés.We know, in particular from document FR-A-2 501 267, structures constituting suspended walkways, especially for work on construction sites. These gateways are generally made up of various elements assembled on site each of which is made of welded components.
Ces éléments comprennent principalement, pour chaque unité de passerelle :
- un plancher,
- deux garde-corps,
- des étriers de suspension.
- a floor,
- two railings,
- suspension brackets.
La présente invention a pour objet de réaliser un plancher pour une telle passerelle, qui soit constitué sans soudure afin d'en diminuer le coût, d'en simplifier le montage, et d'éviter les contraintes techniques de la soudure. En effet, les structures concernées sont avantageusement réalisées en aluminium, étant donné le gain de poids obtenu par l'emploi de ce matériau.The object of the present invention is to make a floor for such a walkway, which is made without welding in order to reduce the cost, simplify assembly, and avoid constraints welding techniques. Indeed, the structures concerned are advantageously made of aluminum, given the weight gain obtained by using this material.
Or, spécialement pour l'aluminium, la technique de la soudure a des conséquences gênantes et coûteuses. L'opération de soudure entraíne sur la zone concernée un effet de recuit neutralisant partiellement mais notablement l'amélioration de limite élastique obtenue par traitement thermique de la qualité d'aluminium utilisée à cette fin.Now, especially for aluminum, the welding technique has awkward consequences and expensive. The welding operation leads to the area concerned an annealing effect partially neutralizing but notably the improvement of elastic limit obtained by quality heat treatment aluminum used for this purpose.
L'abaissement de la limite élastique qui en résulte nécessite de dimensionner plus largement les composants utilisés, d'où une augmentation de coût.The lowering of the elastic limit which results requires more extensive dimensioning components used, hence an increase in cost.
Par ailleurs toute soudure entraíne une aggravation des risques de corrosion et nécessite, pour limiter ces risques, une procédure de contrôle qualité stricte et coûteuse, à quoi s'ajoute le coût d'un personnel qualifié.In addition, any welding results in a increased risk of corrosion and requires, for limit these risks, a quality control procedure strict and costly, plus the cost of a Qualified staff.
Selon l'invention, un plancher modulaire de passerelle composé par l'assemblage sans soudure de deux plinthes, d'un ensemble d'éléments de base et de deux traverses d'extrémité, les dites plinthes étant constituées par des profilés qui comportent chacun un profil latéral recevant les extrémités latérales des éléments de base, lequel profil latéral présente, suivant un mode préférentiel, au moins une partie en saillie s'insérant dans au moins une entaille correspondante de ces éléments de base en faisant participer ceux-ci à la rigidité transversale de la passerelle, est caractérisé en ce que les traverses d'extrémité sont fixées en bout des plinthes par au moins un point de fixation sur chaque plinthe en assurant la cohérence de l'ensemble.According to the invention, a modular floor of gateway composed by seamless assembly of two plinths, a set of basic elements and two sleepers end, said plinths being constituted by profiles which each have a side profile receiving the lateral ends of the basic elements, which side profile presents, according to a mode preferential, at least one projecting part fitting in at least one corresponding notch of these basic elements by involving these in the transverse stiffness of the gangway, is characterized in that the crosspieces are fixed at the end of the plinths by at minus one fixing point on each plinth in ensuring the coherence of the whole.
Chaque profilé de plinthe comporte au moins un profil latéral longitudinal inférieur creux qui sert de logement à un élément destiné à relier la plinthe aux deux traverses d'extrémité ou à d'autres parties de la passerelle.Each plinth profile has at least a hollow lower longitudinal side profile which serves housing to an element intended to connect the plinth to two end ties or to other parts of the bridge.
Ce profil latéral est disposé de préférence du côté extérieur à la passerelle et, s'il est unique, à la partie inférieure de la plinthe. Il est creux et peut avoir de préférence, mais non nécessairement, une section tubulaire fermée.This lateral profile is preferably arranged on the outside of the bridge and, if it is unique, at the lower part of the plinth. It is hollow and can preferably, but not necessarily, a closed tubular section.
Selon une forme de réalisation le profil reçoit dans ce cas, à chaque extrémité et sur une longueur appropriée, un taraudage destiné à accueillir une vis pour le relier à l'élément transversal d'extrémité correspondant, ainsi qu'éventuellement à un jambage de garde-corps disposé au-dessus de la dite plinthe.According to one embodiment the profile receives in this case, at each end and on a appropriate length, a thread intended to accommodate a screw to connect it to the transverse element corresponding end, as well as possibly a guardrail jamb arranged above the said baseboard.
Suivant une réalisation alternative une tige, filetée au moins à ses extrémités, est passée dans le dit profil sur toute la longueur de celui-ci et dépasse à chaque extrémité pour servir de liaison par écrou comme il est dit ci-dessus.According to an alternative realization a rod, threaded at least at its ends, is passed in the said profile over the entire length of it and protrudes at each end to serve as a connection by nut as it says above.
Selon une réalisation préférée, les écrous situés aux deux extrémités de la tige filetée sont serrés contre les extrémités du profil creux pour placer la plinthe en situation de précontrainte. Ce serrage peut s'effectuer par l'intermédiaire des éléments transversaux d'extrémité préalablement mis en place.According to a preferred embodiment, the nuts located at both ends of the threaded rod are pressed against the ends of the hollow profile to place the plinth in a prestressed situation. This tightening can be done through the elements transverse end previously installed.
Comme alternative, la tige filetée peut être remplacée par un câble sur les extrémités duquel sont fixées des attaches permettant un blocage équivalent, avec le même effet de précontrainte.As an alternative, the threaded rod can be replaced by a cable on the ends of which are fixed fasteners allowing equivalent blocking, with the same prestressing effect.
Le profil creux situé à la partie inférieure de la plinthe peut être doublé d'un profil creux parallèle situé à la partie supérieure de la plinthe et permettant de renforcer l'effet de liaison du premier profil.The hollow profile located at the bottom plinth can be lined with a hollow profile parallel located at the top of the plinth and allowing to reinforce the bonding effect of the first profile.
Une fois assemblé l'ensemble décrit ci-dessus constitue un ensemble de plancher rigide obtenu sans soudure de ses composants qui est susceptible notamment d'être relié à des garde-corps et étriers pour former une passerelle, et notamment une passerelle suspendue. Cet ensemble permet de réaliser en outre, de façon simple, la précontrainte de la passerelle.Once assembled the described assembly above constitutes a rigid floor assembly got seamless from its components which is likely in particular to be connected to railings and stirrups to form a bridge, and in particular a suspended walkway. This set allows for besides, in a simple way, the prestressing of the bridge.
Pour bien faire comprendre l'invention on en
décrira ci-après, à titre d'exemple sans caractère
limitatif, une forme d'exécution préférée et des
variantes, en référence au dessin schématique annexé
dans lequel :
En référence au dessin, le plancher selon
l'invention est constitué de deux plinthes latérales 1,
d'une série d'éléments transversaux modulaires 2
constituant la base du plancher, et de deux éléments
transversaux d'extrémité 3. La figure 1 montre la
disposition respective de ces éléments en vue de leur
assemblage.With reference to the drawing, the floor according to
the invention consists of two
Chaque plinthe 1 est conçue de façon à
constituer, en association avec l'autre plinthe, un
élément de liaison des éléments transversaux de base 2
entre eux et entre les éléments transversaux de base 2
et les deux éléments transversaux d'extrémité 3. A cet
effet, comme on le voit en particulier à la figure 4,
chaque plinthe 1 est constituée par un profilé qui
comporte, vers l'intérieur, un profil latéral
longitudinal inférieur creux 4 destiné à servir de
logement à l'extrémité latérale 5 des éléments de base 2
en calant ceux-ci vers le haut comme vers le bas. On
comprend que les éléments transversaux de base 2 sont
engagés longitudinalement par glissement dans les dits
profils latéraux 5 des plinthes 1.Each
Vers l'extérieur, le profilé de plinthe 1
présente deux profils latéraux longitudinaux creux
parallèles entre eux, dont l'un 6 est disposé à la
partie inférieure et dont l'autre 7 est disposé à la
partie supérieure du profilé.To the outside, the
Chaque profil 6,7 reçoit, à ses deux
extrémités 8,9 et sur une longueur appropriée, un
taraudage destiné à accueillir une vis 10.Each profile 6.7 receives, at its two
ends 8.9 and over an appropriate length a
internal thread intended to accommodate a
Chacun des éléments transversaux de base 2
est constitué par une tôle métallique dont les bords
transversaux 11 sont repliés pour prendre une forme en
U, alors que ses bords latéraux 5 sont destinés à
s'engager et coulisser dans les profils intérieurs 4 des
plinthes 1.Each of the basic
Comme on le voit plus particulièrement à la
figure 4, le profil intérieur 4 de chaque plinthe 1
présente sur sa face inférieure des saillies 13
destinées à s'engager dans des entailles correspondantes
14 ménagées dans la partie inférieure des éléments de
base 2 de façon que l'ensemble des éléments de base 2
coopère sur toute sa longueur à la liaison des deux
côtés du plancher.As can be seen more particularly in the
Figure 4, the
Les deux éléments transversaux d'extrémité 3
relient sans soudure les deux plinthes 1 à chacune de
leurs extrémités. Ces éléments transversaux d'extrémité
3 présentent une forme en U dont les branches permettent
une liaison rigide avec les garde-corps et les plinthes.
Comme représenté à la figure 2, cette liaison est
assurée par les vis 10 traversant des ouvertures
appropriées 15 des branches de l'élément transversal
d'extrémité et se vissant dans les extrémités taraudées
8,9 des profils 6,7 de chaque plinthe 1.The two
Selon une variante, non représentée au dessin, la liaison entre les plinthes et les éléments transversaux d'extrémité n'est pas assurée par des vis, mais par une tige filetée ou un câble passant dans chaque profil de la plinthe et dont le blocage à chacune de ses extrémités permet d'exercer sur la plinthe un effet de pré-contrainte.According to a variant, not shown in drawing, the connection between the plinths and the elements transverse end is not secured by screws, but by a threaded rod or cable passing through each profile of the plinth and each blocking of its ends allows to exercise on the plinth a pre-stress effect.
L'ensemble de plancher ainsi assemblé représenté à la figure 5, constitue un ensemble rigide obtenu sans soudure, et qui est susceptible d'être relié à des garde-corps et étriers pour former une passerelle suspendue.The floor assembly thus assembled shown in Figure 5, constitutes a rigid assembly obtained seamless, and which is likely to be connected to railings and stirrups to form a gangway suspended.
A la figure 6 on a représenté le plancher
assemblé, qui a reçu une paire de garde-corps 16 figurés
en pointillé. Comme on le voit le jambage 17 du
garde-corps est fixé par la vis 10 solidarisant
l'élément transversal d'extrémité 3 et la plinthe 1.In Figure 6 there is shown the floor
assembled, which received a pair of 16 figured railings
dotted. As we can see the
A la figure 7 on a représenté une variante
selon laquelle les éléments transversaux d'extrémité 3
en forme de U sont prolongés vers le haut pour améliorer
leur liaison avec les garde-corps 16 et former des
étriers permettant la jonction entre plusieurs modules
de passerelle.In FIG. 7 a variant has been represented.
that the
L'un au moins des éléments transversaux d'extrémité 3 pourrait aussi être prolongé vers le haut pour former un étrier de suspension (non représenté).At least one of the transverse elements end 3 could also be extended upwards to form a hanger (not shown).
Afin de permettre une liaison longitudinale
du plancher selon l'invention avec les garde-corps 16
d'une passerelle, on prévoit (voir en particulier les
figures 4 et 8) à la partie supérieure de chaque plinthe
1 un profil d'accrochage 18 qui coopère avec un profil
correspondant 19 prévu dans la lisse inférieure 20 du
garde-corps 16. Dans ce cas, les jambages d'extrémité du
garde-corps sont fixés sur les branches correspondantes
des traverses d'extrémité, comme on l'a décrit en
référence à la figure 6.To allow a longitudinal connection
of the floor according to the invention with the
Enfin, selon une variante représentée à la
figure 9, les profils extérieurs latéraux 6,7 de la
plinthe 1 sont configurés de façon à présenter des
parties en regard 21 formant glissières qui permettent
d'encastrer par glissement entre les deux profils une
plaque (non figurée au dessin) portant des inscriptions
ou servant de support à des accessoires.Finally, according to a variant shown in
Figure 9, the side
On comprendra que la description ci-dessus a été donnée à simple titre d'exemple, sans caractère limitatif, et que des adjonctions ou des modifications constructives pourraient y être apportées sans sortir du cadre de l'invention, tel que défini dans les revendications.It will be understood that the above description has was given as an example, without character limiting, and that additions or modifications could be made without leaving the scope of the invention, as defined in the claims.
Claims (11)
- Modular platform board, constituted by the weldless connection of two support members (1), an assembly of base elements (2) and two end cross-bars (3), the support members (1) being constituted by structural sections, each of which comprises a lateral profile section (4) which receives the lateral ends (5) of the base elements (2), characterised in that the end cross-bars (3) are fixed at the end of the support members (1) by at least one fixing point to each support member (1) ensuring the cohesion of the assembly.
- Board according to claim 1, characterised in that the lateral profile section (4) of each support member (1) has at least one projecting portion (13) which is inserted into at least one corresponding recess (14) of the base elements (2) causing the base elements (2) to contribute to the transverse rigidity of the platform.
- Board according to claim 1 or claim 2, characterised in that the end cross-bars (3) are arranged in order to lock the base elements (2) in the lateral profile sections (4) of the support members (1) at each end of the platform or of the platform module.
- Board according to any one of claims 1 to 3, characterised in that each support member structural section (1) comprises at least one rectilinear longitudinal hollow lateral profile section (6, 7) which is used as a housing for an element connecting the support member (1) to other elements of the platform and which enhances the strength of the support member (1).
- Board according to claim 4, characterised in that the element for connecting each support member (1) to the end cross-bars (3) is a connection such as a rod or a cable, whose locking at each of the ends thereof allows a prestressing effect to be applied to the support member (1).
- Board according to claim 4 or claim 5, characterised in that the connection element (10) housed in the lateral profile section (6, 7) of the support member (1) connects the support member (1) directly to the corresponding end cross-bar (3).
- Board according to any one of claims 1 to 6, characterised in that each end cross-bar (3) is used to connect each support member (1) to the corresponding limb (17) of a guard rail (16) located on the corresponding side of the support member (1).
- Board according to any one of claims 1 to 7, characterised in that each end cross-bar (3) is U-shaped and each branch of the U is connected to at least one of the lateral elements of the board, such as the support members (1) or guard rails (16).
- Board according to any one of claims 1 to 8, characterised in that at least one of the end cross-bars is extended upwards in order to form a hanging clip of the platform or a connecting clip for the platform modules.
- Board according to any one of claims 1 to 9, characterised in that the structural sections of the support members (1) comprise, at their upper portion, a coupling profile section (18) which co-operates with a corresponding coupling profile section (19) of the lower hand rail (20) of a guard rail (16), whose end limbs (17) are fixed to the corresponding branches of the end cross-bars (3).
- Board according to any one of claims 4 to 10, characterised in that the longitudinal profile sections (6, 7) of the support members (1) are arranged at the side of the support member (1) that is external relative to the platform and have a portion in the form of a slide (21) which allows insertion, by sliding between those two profile sections (6, 7), of a plate which carries indicia or is used as a support for accessories.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9502405 | 1995-03-02 | ||
| FR9502405A FR2731245B1 (en) | 1995-03-02 | 1995-03-02 | GATEWAY FLOOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0730070A1 EP0730070A1 (en) | 1996-09-04 |
| EP0730070B1 true EP0730070B1 (en) | 2000-05-10 |
Family
ID=9476639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19960400426 Expired - Lifetime EP0730070B1 (en) | 1995-03-02 | 1996-02-29 | Scaffold-platform |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0730070B1 (en) |
| ES (1) | ES2148696T3 (en) |
| FR (1) | FR2731245B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2922927B1 (en) * | 2007-10-29 | 2009-11-20 | Duarib | SCAFFOLD FLOOR WITH BOTTOM BACK AND SCAFFOLD EQUIPPED WITH SUCH FLOOR |
| CN105839907A (en) * | 2016-05-31 | 2016-08-10 | 上海建工五建集团有限公司 | Suspension type steel platform scaffold foundation and method for mounting same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2501267A1 (en) * | 1981-03-03 | 1982-09-10 | Entrepose | Load platform for scaffolding - comprises panels with longitudinal edges held together by co-operating fastenings |
| FR2527251A1 (en) * | 1982-05-18 | 1983-11-25 | Self Lock Echafaudages | Construction element esp. scaffolding floor - comprises frame made up of cross-members interconnecting beams of hollow rectangular cross=section |
| DE3724269A1 (en) * | 1987-07-22 | 1989-02-02 | Langer Geb Layher | SCAFFOLDING PANEL MADE OF ALUMINUM-EXTRUSION PRESS PROFILES |
| US4825976A (en) * | 1988-08-31 | 1989-05-02 | Bil-Jax, Inc. | Scaffolding platform |
| US5141078A (en) * | 1991-10-10 | 1992-08-25 | Aluma Systems Corp. | Scaffold deck |
| DE9305732U1 (en) * | 1993-04-16 | 1993-06-17 | Fritz Schaefer Gmbh, 5908 Neunkirchen, De |
-
1995
- 1995-03-02 FR FR9502405A patent/FR2731245B1/en not_active Expired - Fee Related
-
1996
- 1996-02-29 ES ES96400426T patent/ES2148696T3/en not_active Expired - Lifetime
- 1996-02-29 EP EP19960400426 patent/EP0730070B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2731245A1 (en) | 1996-09-06 |
| EP0730070A1 (en) | 1996-09-04 |
| FR2731245B1 (en) | 1997-05-30 |
| ES2148696T3 (en) | 2000-10-16 |
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