FR2775713A1 - Collective and individual protection of persons on periphery of building roofs - Google Patents

Collective and individual protection of persons on periphery of building roofs Download PDF

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Publication number
FR2775713A1
FR2775713A1 FR9802752A FR9802752A FR2775713A1 FR 2775713 A1 FR2775713 A1 FR 2775713A1 FR 9802752 A FR9802752 A FR 9802752A FR 9802752 A FR9802752 A FR 9802752A FR 2775713 A1 FR2775713 A1 FR 2775713A1
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France
Prior art keywords
building
base
allowing
fastener
toads
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Granted
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FR9802752A
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French (fr)
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FR2775713B1 (en
Inventor
Philippe Albertini
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Individual
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Individual
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Priority to FR9802752A priority Critical patent/FR2775713B1/en
Publication of FR2775713A1 publication Critical patent/FR2775713A1/en
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Publication of FR2775713B1 publication Critical patent/FR2775713B1/en
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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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3214—Means for working on roofs
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
    • E04G21/3233—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Abstract

The protection device is composed of a base (1) fixed to the building structure (13) by clips (4). The base supports a hook (5) enabling the hooking of nets during the installation of the cover and receives a fastener (2) which supports the handrail (3). The facade (6) of the handrail support has a stop (11) allowing the wedging of the peripheral handrail during construction and during later interventions on the building.

Description

l-I- La présente invention concerne le dispositif permettant d'assurer del-I- The present invention relates to the device for ensuring

façon définitive la protection collective et individuelle des personnes en périphérie des toitures, aussi bien pendant la construction que lors des  definitive collective and individual protection of people around the roofs, both during construction and during

interventions ultérieures sur les bâtiments.  subsequent interventions on buildings.

La protection collective et individuelle des personnes en périphérie des toitures est traditionnellement assurée par des protections provisoires fixés de façon précaire sur la structure du bâtiment. Suivant les différentes phases de la construction, ces protections sont systématiquement déplacées et ne permettent donc pas d'assurer efficacement une protection collective et individuelle des personnes, risquant ainsi d'entraîner la chute grave des intervenants. Le dispositif selon l'invention, prévu pour les différentes parties de la toiture ( bas de pente; haut de pente; cotés; etc....) permet de remédier définitivement à ces inconvénients. Il comporte effectivement suivant une première caractéristique, une embase se fixant solidement et de façon définitive à l'aide de crapauds ou par boulonnage sur la structure du bâtiment. L'embase reçoit d'une part, l'attache permettant la mise en place à l'extérieur du bâtiment du support garde corps et d'autre part, le crochet recevant les filets de protection nécessaires durant la mise en oeuvre de la couverture. La façade du support garde corps est munie d'attentes permettant aux intervenants d'accrocher leur harnais de sécurité pendant la pose ou la dépose des garde corps. L'ensemble embase, attache et support garde corps, de par leurs formes non limitatives et leurs systèmes non limitatifs d'accrochage sur la structure du bâtiment assure donc la mise en place définitive des protections nécessaires pendant la construction ainsi  The collective and individual protection of people on the periphery of roofs is traditionally ensured by temporary protections precariously attached to the structure of the building. According to the different phases of construction, these protections are systematically displaced and therefore do not allow effective collective and individual protection of people, thus risking the serious fall of the workers. The device according to the invention, provided for the different parts of the roof (bottom of slope; top of slope; sides; etc ....) allows these drawbacks to be remedied definitively. According to a first characteristic, it effectively comprises a base which is fixed securely and definitively by means of toads or by bolting to the structure of the building. The base receives on the one hand, the fastener allowing the installation outside the building of the bodyguard support and on the other hand, the hook receiving the necessary protective nets during the implementation of the cover. The front of the bodyguard support is provided with waits allowing the interveners to hang their safety harness during the installation or the removal of the bodyguards. The base, attachment and bodyguard support assembly, by their non-limiting forms and their non-limiting attachment systems on the building structure therefore ensures the final installation of the necessary protections during construction as well

que lors d'interventions ultérieures sur la toiture.  than during subsequent interventions on the roof.

En fonction de certains systèmes constructifs, l'invention permet également aux intervenants d'être mise en place au sol, avant levage de la  According to certain constructive systems, the invention also allows the interveners to be placed on the ground, before lifting the

structure, éliminant de ce fait tous risques de chutes.  structure, thereby eliminating any risk of falls.

Les dessins annexés illustrent l'invention: La figure 1 représente la vue de dessus de l'invention pour les  The accompanying drawings illustrate the invention: FIG. 1 represents the top view of the invention for the

éléments en bas de pente montrant les différentes pièces qui la compose.  elements at the bottom of the slope showing the different parts that make it up.

La figure 2 représente la vue de coté de l'invention pour les éléments en bas de pente, montrant l'un des principes de fixation sur la  FIG. 2 represents the side view of the invention for the elements at the bottom of the slope, showing one of the principles of attachment to the

structure du bâtiment.structure of the building.

-2 - La figure 3 représente la vue de dessus de l'invention pour les  -2 - Figure 3 shows the top view of the invention for

éléments en haut de pente montrant les différentes pièces qui la compose.  elements at the top of the slope showing the different parts that make it up.

La figure 4 représente la vue de coté de l'invention pour les éléments en haut de pente montrant un des principes de fixation sur la structure d'un bâtiment. La figure 5 représente la vue de face de l'invention pour les  FIG. 4 represents the side view of the invention for the elements at the top of the slope showing one of the principles of attachment to the structure of a building. FIG. 5 represents the front view of the invention for the

éléments en bas de pente montrant l'ensemble vu sous cet angle.  elements at the bottom of the slope showing the whole seen from this angle.

La figure 6 représente la vue de face de l'invention pour les  FIG. 6 represents the front view of the invention for the

éléments en haut de pente montrant l'ensemble vu sous cet angle.  elements at the top of the slope showing the whole seen from this angle.

La figure 7 représente la vue de coté d'un principe de crapaud  Figure 7 shows the side view of a toad principle

permettant la fixation de l'invention sur la structure d'un bâtiment.  allowing the fixing of the invention on the structure of a building.

La figure 8 représente la vue de coté de l'invention pour les éléments de cotés de toiture montrant un des principes de fixation sur  FIG. 8 represents the side view of the invention for the roof side elements showing one of the principles of attachment to

la structure d'un bâtiment.the structure of a building.

La figure 9 représente la vue de dessus de l'invention pour les éléments de cotés de toitures montrant les différentes pièces qui la compose. La figure 10 représente la vue de face de l'invention pour les  FIG. 9 represents the top view of the invention for the roof side elements showing the various parts which compose it. FIG. 10 represents the front view of the invention for the

éléments de cotés de toitures montrant l'ensemble vu sous cet angle.  roof side elements showing the whole seen from this angle.

La figure 1 1 représente la vue en coupe de l'invention pour les éléments de cotés montrant un des principes de fixation sur la  Figure 1 1 shows the sectional view of the invention for the side elements showing one of the principles of attachment to the

structure d'un bâtiment.structure of a building.

La figure 12 représente la vue de coté de l'invention pour les éléments en bas de pente montrant un des principes d'accès sur la toiture  FIG. 12 represents the side view of the invention for the elements at the bottom of the slope showing one of the principles of access on the roof

d'un bâtiment.of a building.

Définition et repérages des différents éléments de l'invention Le dispositif selon l'invention, se compose pour les éléments de bas et haut de pente, d'une embase (1), et pour les éléments de cotés de toiture d'une embase (8). Les embases (1) et (8) à leurs extrémités cotés façades du bâtiment, reçoivent une attache (2). L'attache (2) est de forme non limitative en fonction de son emplacement en bas ou haut de pente ou sur les cotés du bâtiment. L'attache (2), dont l'extrémité intérieure est assemblée à l'embase (I)ou (8), constitue l'élément de transition entre l'intérieur et l'extérieur d'un bâtiment, permettant ainsi une liaison rigide entre l'embase (1) ou (8) positionnée à l'intérieur du bâtiment et le support garde corps (3) positionné à l'extérieur du bâtiment. L'attache (2) reçoit à son extrémité extérieure le support garde corps (3). Les embases (1) pour les éléments de bas et haut de pente sont fixées par les crapauds (4) à la -3 - structure du bâtiment(13), ou selon une variante non illustrée par boulonnage. L'embase (8) pour les éléments de cotés de toiture est fixée par les crapauds à glissières (9) à la structure du bâtiment (13) ou selon une variante non illustrée par boulonnage. La forme variante non illustrée, au type de structure (13), utilisée pour la construction du bâtiment. Le crochet (5) est assemblé aux embases (1) des éléments de bas et haut de pente. Les crapauds (4) sont munis de guide (10) pour facilité l'alignement et l'équerrage des embases (1) par rapport à la structure du bâtiment (13). Le support de garde corps (3) reçoit sur son coté extérieur la façade (6). La façade (6) est pliée en partie basse pour former une butée (I 1) pour les pieds de garde corps(12). La façade (6) comporte en partie  Definition and identification of the various elements of the invention The device according to the invention, for the elements at the bottom and top of the slope, consists of a base (1), and for the elements of the roof sides of a base ( 8). The bases (1) and (8) at their ends on the facades of the building receive a clip (2). The fastener (2) is of nonlimiting shape depending on its location at the bottom or top of the slope or on the sides of the building. The fastener (2), the inner end of which is assembled to the base (I) or (8), constitutes the transition element between the interior and the exterior of a building, thus allowing a rigid connection between the base (1) or (8) positioned inside the building and the bodyguard support (3) positioned outside the building. The fastener (2) receives at its outer end the bodyguard support (3). The bases (1) for the elements of bottom and top of slope are fixed by the toads (4) to the -3 - structure of the building (13), or according to a variant not illustrated by bolting. The base (8) for the roof side elements is fixed by the sliding toads (9) to the building structure (13) or according to a variant not illustrated by bolting. The variant form, not illustrated, of the type of structure (13), used for the construction of the building. The hook (5) is assembled to the bases (1) of the bottom and top slope elements. The toads (4) are provided with guide (10) to facilitate alignment and squaring of the bases (1) relative to the structure of the building (13). The bodyguard support (3) receives on its outer side the facade (6). The front (6) is folded in the lower part to form a stop (I 1) for the body guard feet (12). The facade (6) partly comprises

haute, de part et d'autre du support de garde corps (3), les attentes (7).  high, on either side of the bodyguard support (3), the expectations (7).

L'élément d'accès à la toiture comporte une plate forme(14) soutenue par les supports garde corps (3). La plate forme (14) comporte des pattes (15) recourbées en leurs extrémités de façon à maintenir un barreau d'échelle (17). Un gousset (15) entre la plate forme (14) et les façades (6) permet de renforcer la rigidité de l'ensemble.Selon une variante non illustrée, les ensembles embase (1), (8), attache (2), et support garde corps (3) de forme non limitative, peuvent être adaptés facilement sur les bâtiments munis  The roof access element comprises a platform (14) supported by the bodyguard supports (3). The platform (14) has legs (15) curved at their ends so as to maintain a ladder bar (17). A gusset (15) between the platform (14) and the facades (6) makes it possible to reinforce the rigidity of the assembly. According to a variant not illustrated, the base assemblies (1), (8), fastener (2), and non-limitative bodyguard support (3), can be easily adapted on buildings fitted

d'acrotères.acrotteries.

A titre d'exemple non limitatif, l'ensemble des éléments et pièces constituant l'invention est constitué avec des matériaux  By way of nonlimiting example, all of the elements and parts constituting the invention are made with materials

métalliques ferreux, alliage, etc.....  ferrous metals, alloys, etc.

Le dimensionnement de l'ensemble des éléments et des pièces constituant l'invention est adapté en fonction des différents types de structures (13) employés pour la construction des bâtiments L'angle formé entre l'embase (1) et l'attache (2) est adapté en fonction des différentes  The dimensioning of all the elements and parts constituting the invention is adapted according to the different types of structures (13) used for the construction of buildings The angle formed between the base (1) and the fastener (2 ) is adapted according to the different

pentes de toiture des bâtiments.roof slopes of buildings.

La section et la résistance de l'ensemble des éléments et des pièces constituant l'invention sont calculées en fonction des normes et exigences  The section and the resistance of all the elements and parts constituting the invention are calculated according to standards and requirements

en vigueur dans le pays d'utilisation.  in force in the country of use.

Le dispositif selon l'invention est tout particulièrement destiné à assurer une protection collective et individuelle dans l'acte de construire,  The device according to the invention is very particularly intended to provide collective and individual protection in the act of building,

ainsi que lors d'interventions ultérieures sur les bâtiments.  as well as during subsequent interventions on buildings.

- 4 -- 4 -

Claims (10)

REVENDICATIONS 1) Dispositif, pour assurer de façon définitive la protection collective et individuelle des personnes en périphérie des toiture de bâtiments, comportant une embase (1) ou (8) fixée à la structure du bâtiment (13) par l'intermédiaire des crapauds (4) ou (9), à son extrémité coté façade du bâtiment, l'embase (1) ou (8) reçoit une attache (2), qui d'une part constitue l'élément de transition entre l'intérieur et l'extérieur du bâtiment, et d'autre part supporte le support garde corps (3) destiné à la mise en ceuvre du garde corps périphérique, le support garde corps (3), dont la façade (6) comporte dans sa partie supérieure les attentes (7), permettant aux intervenants de s'accrocher pour la mise en place ou le démontage du garde corps périphérique, la plate forme(14), permettant un accès en toute sécurité sur la toiture, est munie de pattes (15) permettant un maintien efficace de l'échelle (17), afin de facilité l'accrochage des filets indispensables lors de la mise en ceuvre de la couverture, l'embase (1)  1) Device, to ensure definitive collective and individual protection of people on the periphery of building roofs, comprising a base (1) or (8) fixed to the structure of the building (13) by means of the toads (4 ) or (9), at its end on the facade of the building, the base (1) or (8) receives a fastener (2), which on the one hand constitutes the transition element between the interior and the exterior of the building, and on the other hand supports the bodyguard support (3) intended for the implementation of the peripheral bodyguard, the bodyguard support (3), the facade (6) of which has the expectations in its upper part (7 ), allowing workers to hang on for the installation or dismantling of the peripheral body guard, the platform (14), allowing safe access to the roof, is provided with lugs (15) allowing effective maintenance of the ladder (17), in order to facilitate the hanging of the essential nets l when the cover is implemented, the base (1) est pourvue d'un crochet (5).is provided with a hook (5). 2) Dispositif selon la revendication 1 caractérisé en ce que l'attache (2) constitue un élément de transition, permettant une liaison rigide entre l'embase (1) ou (8) positionnée à l'intérieur du bâtiment  2) Device according to claim 1 characterized in that the fastener (2) constitutes a transition element, allowing a rigid connection between the base (1) or (8) positioned inside the building et le support garde corps (3) positionné à l'extérieur du bâtiment.  and the bodyguard support (3) positioned outside the building. 3) Dispositif selon la revendication 2 caractérisé en ce que le  3) Device according to claim 2 characterized in that the support garde corps (3) permet de recevoir un garde corps (13).  body guard support (3) allows to receive a body guard (13). 4) Dispositif selon la revendication 3 caractérisé en ce que la façade (6), des supports garde corps (3), est munie d'attente (7)  4) Device according to claim 3 characterized in that the facade (6), body guard supports (3), is provided with a wait (7) permettant l'accrochage d'un harnais.  allowing the attachment of a harness. ) Dispositif selon la revendication 4 caractérisé en ce que  ) Device according to claim 4 characterized in that l'embase (1) est fixée sur la structure du bâtiment (13).  the base (1) is fixed to the structure of the building (13). 6) Dispositif selon la revendication 5 caractérisé en ce que  6) Device according to claim 5 characterized in that l'embase (1) ou (8) supporte l'attache (2).  the base (1) or (8) supports the fastener (2). 7) Dispositif selon la revendication 6 caractérisé en ce que l'embase (1) est fixée par l'intermédiaire des crapauds (4) sur la structure du bâtiment (13) 8) Dispositif selon la revendication 7 caractérisé en ce que l'embase (8) est fixée par l'intermédiaire des crapauds (9) sur la structure du bâtiment (13) - 9) Dispositif selon la revendication 8 caractérisé en ce que les crapauds (4) sont munis d'un guide (10) permettant l'alignement et  7) Device according to claim 6 characterized in that the base (1) is fixed via the toads (4) on the structure of the building (13) 8) Device according to claim 7 characterized in that the base (8) is fixed by means of the toads (9) to the structure of the building (13) - 9) Device according to claim 8 characterized in that the toads (4) are provided with a guide (10) allowing the alignment and l'équerrage entre l'embase (1) et la structure du bâtiment (13).  the squaring between the base (1) and the building structure (13). ) Dispositif selon la revendication 9 caractérisé en ce que la plate forme (14) est munie de pattes (15) permettant le maintien du  ) Device according to claim 9 characterized in that the platform (14) is provided with lugs (15) allowing the maintenance of the barreau d'échelle (17).ladder rung (17). 11) Dispositif selon l'une quelconque des revendications  11) Device according to any one of claims précédentes caractérisé en ce que l'angle formé entre l'embase (1) et l'attache (2) est adapté en fonction des différentes pentes de toiture  previous characterized in that the angle formed between the base (1) and the fastener (2) is adapted according to the different roof slopes des bâtiments.buildings. 12) Dispositif selon l'une quelconque des revendications  12) Device according to any one of claims précédentes caractérisé en ce que les crapauds (4) et (9) sont d'une forme adaptée en fonction des différents types de structures (13)  previous characterized in that the toads (4) and (9) are of a shape adapted according to the different types of structures (13) employés pour la construction de bâtiments.  employees for the construction of buildings. 13) Dispositif selon l'une quelconque des revendications  13) Device according to any one of claims précédentes caractérisé en ce que l'attache (2) a une forme adaptée en fonction des différents types de structures utilisés pour la construction  previous characterized in that the fastener (2) has a shape adapted to the different types of structures used for construction des bâtiments.buildings. 14) Dispositif selon l'une quelconque des revendications  14) Device according to any one of claims précédentes caractérisé en ce que les embases (1)et(8), l'attache (2), le support garde corps (3), les crapauds (4) et (9) sont fixées sur les différents types de structures utilisés pour la construction et ont une forme adaptées en fonction des différents types de structure utilisés  previous characterized in that the bases (1) and (8), the fastener (2), the body guard support (3), the toads (4) and (9) are fixed on the different types of structures used for the construction and have a shape adapted to the different types of structure used pour la construction des bâtiments.  for the construction of buildings.
FR9802752A 1998-03-06 1998-03-06 DEVICE FOR THE COLLECTIVE AND PERSONAL PROTECTION OF PERSONS ON THE PERIPHERY OF BUILDING ROOFS Expired - Fee Related FR2775713B1 (en)

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FR9802752A FR2775713B1 (en) 1998-03-06 1998-03-06 DEVICE FOR THE COLLECTIVE AND PERSONAL PROTECTION OF PERSONS ON THE PERIPHERY OF BUILDING ROOFS

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FR9802752A FR2775713B1 (en) 1998-03-06 1998-03-06 DEVICE FOR THE COLLECTIVE AND PERSONAL PROTECTION OF PERSONS ON THE PERIPHERY OF BUILDING ROOFS

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FR2775713A1 true FR2775713A1 (en) 1999-09-10
FR2775713B1 FR2775713B1 (en) 2004-06-25

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2245213A5 (en) * 1973-08-07 1975-04-18 Goubaud Michel Scaffolding for fixing to a roof - consists of a two armed bracket with anchor tie fixed to a rafter
DE3341031A1 (en) * 1983-11-12 1984-06-14 Anton 7971 Aitrach Schad Framework bracket for producing a bracket framework which can be adjusted in height and width and is fastened onto the rafters, purlins, cross members etc. forming part of a roof construction
GB2235718A (en) * 1989-08-17 1991-03-13 Anthony Gallimore Safety device for workmen on a roof
DE9300539U1 (en) * 1992-02-25 1993-03-11 Moesenlechner, Manfred, Kitzbuehel, At
FR2681623A1 (en) * 1991-09-24 1993-03-26 Bourgeois Entreprise F Protection device for working on roofs
WO1993009313A1 (en) * 1991-10-31 1993-05-13 Dgs Property Pty. Ltd. Stanchions for steel framed buildings
DE9309723U1 (en) * 1993-06-30 1993-11-18 Mauderer Leichtmetallbau Profile supports for guardrails
DE9404568U1 (en) * 1994-03-18 1995-07-20 Kloeber Johannes Fall protection on roofs
DE19548960A1 (en) * 1994-12-28 1996-07-04 Mills Scaffolding for secure mounting of ladder(s)
FR2728923A1 (en) * 1994-12-28 1996-07-05 Giraud Roger Protective device for workers on roof
DE29705430U1 (en) * 1997-03-26 1997-05-07 Lueck Wilhelm Holder for supporting leaning ladders on roofs

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2245213A5 (en) * 1973-08-07 1975-04-18 Goubaud Michel Scaffolding for fixing to a roof - consists of a two armed bracket with anchor tie fixed to a rafter
DE3341031A1 (en) * 1983-11-12 1984-06-14 Anton 7971 Aitrach Schad Framework bracket for producing a bracket framework which can be adjusted in height and width and is fastened onto the rafters, purlins, cross members etc. forming part of a roof construction
GB2235718A (en) * 1989-08-17 1991-03-13 Anthony Gallimore Safety device for workmen on a roof
FR2681623A1 (en) * 1991-09-24 1993-03-26 Bourgeois Entreprise F Protection device for working on roofs
WO1993009313A1 (en) * 1991-10-31 1993-05-13 Dgs Property Pty. Ltd. Stanchions for steel framed buildings
DE9300539U1 (en) * 1992-02-25 1993-03-11 Moesenlechner, Manfred, Kitzbuehel, At
DE9309723U1 (en) * 1993-06-30 1993-11-18 Mauderer Leichtmetallbau Profile supports for guardrails
DE9404568U1 (en) * 1994-03-18 1995-07-20 Kloeber Johannes Fall protection on roofs
DE19548960A1 (en) * 1994-12-28 1996-07-04 Mills Scaffolding for secure mounting of ladder(s)
FR2728923A1 (en) * 1994-12-28 1996-07-05 Giraud Roger Protective device for workers on roof
DE29705430U1 (en) * 1997-03-26 1997-05-07 Lueck Wilhelm Holder for supporting leaning ladders on roofs

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FR2775713B1 (en) 2004-06-25

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