EP0843057B1 - Security hook - Google Patents
Security hook Download PDFInfo
- Publication number
- EP0843057B1 EP0843057B1 EP97402230A EP97402230A EP0843057B1 EP 0843057 B1 EP0843057 B1 EP 0843057B1 EP 97402230 A EP97402230 A EP 97402230A EP 97402230 A EP97402230 A EP 97402230A EP 0843057 B1 EP0843057 B1 EP 0843057B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hook
- cradle
- safety
- structural element
- forming
- 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
Links
- 238000004873 anchoring Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 10
- 241001484259 Lacuna Species 0.000 claims 1
- 229910000754 Wrought iron Inorganic materials 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012550 audit Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
- E06C1/345—Ladders attached to structures, such as windows, cornices, poles, or the like specially adapted to be installed parallel to the roof surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/12—Devices or arrangements allowing walking on the roof or in the gutter
-
- 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
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
-
- 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
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3276—Arrangements on buildings for connecting safety-lines
-
- 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
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
- E04G3/26—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons specially adapted 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/041—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffolds on roof frameworks or on roofs
Definitions
- the invention relates to a safety hook intended to be attached to a structural element, in particular a rafter, a construction to anchor or hang on it one or several safety devices such as scaffolding, carrycot, ladder, platform, safety harness or other.
- the invention relates more particularly to hooks said service intended to be placed on a roof inclined to allow the installation of safety devices allowing a roofer to work in completely safe.
- Safety hooks also called safety hooks service
- a safety hook is described in particular in the Patent FR-A-2,544,367.
- This safety hook stands out by its complexity due to the fact that it consists of two independent elements, namely a first element fixed to the chevron and an actual hook, both the element attached to the rafter and the hook being of realization complex.
- the element attached to the rafter consists of two plates which laterally tighten the rafter while being held on the latter by bolts.
- the hook includes a yoke to be mounted at interlocking locked on said element fixed to the rafter. Due to the assembly time and the complexity of such security system, roof workers give up using it.
- the aim of the present invention is therefore to propose a safety hook of simple design, relatively light, of thin structure and easy installation, suitable for withstand a significant dynamic or static load without deform or detach from the building element.
- Another object of the invention is to propose a hook for safety including the design of the attachment to an element of construction allows positioning on said hook of safety devices other than safety devices conventionally used, in particular scaffolding, thus making the hook of versatile security.
- the invention relates to a hook for security according to claim 1.
- the cradle forming hook is an attached piece by at least a portion of his song, preferably by welding, to the body of the hook 1.
- the hook body is bent at least once at its end carrying the cradle to provide a surface inclined necessarily extending above said element of construction and marrying at least part of the back of the cradle so as to strengthen the cradle.
- the safety hook 1, is a hook more particularly intended for roofs in slope.
- This hook 1 is fixed to a frame element 4, in particular a chevron, of a construction.
- This hook is intended for hanging ladders, for fixing platforms, to anchor safety harnesses, to hanging scaffolding, etc.
- This hook 1 is made up, as shown in FIG. 1, an elongated body 2 intended to be applied by friction on the upper face of said frame member 4.
- This body 2 is generally originally formed by a metal plate with a generally rectangular appearance, this plate possibly being shaped by folding as will be described below.
- This body 2 is secured to the structural element 4 by at least one member of fixation.
- the body 2 has one or more through holes 15 at near one of its ends, called the end free, for the passage of fasteners such as nails 12.
- This body 2 of the hook 1 may also include at least one fixing lug 11 forming an assembly integral with said body 2, this fixing lug 11 being intended to be applied by friction on the face side of the structural element 4 by means of at least one clamping member 12 'passing through, by said tab fixing 11, said frame member 4.
- This body clamping 12 ' is for example a threaded rod. This rod threaded engages along an axis, shown in phantom in Figure 1, in a bore in the element of frame 4. The maintenance of this clamping member 12 'is obtained by means of a suitable fixing member such as a simple nut.
- This fixing lug 11 which forms a one-piece assembly with the body 2 may consist of a simple plate provided with a through hole for the passage of the clamping member 12 ', this plate being welded to an edge portion longitudinal of the latter as shown in Figure 1.
- This fixing lug 11 can also be formed of a single piece with the body 2.
- this bracket 11 can be made by torsional bending of the end body 2 as shown in Figure 4.
- the portion of the body 2 extending between the torsion zone and the end free from body 2 has at least one through hole and used to fix the tab 11 to the frame element 4.
- the clamping element used is identical to the member 12 'described above.
- This safety hook 1 also comprises a cradle 3 constituting the hook itself.
- This cradle 3 is disposed at, or in the vicinity of, one end of said body 2 and is secured to the latter.
- This cradle 3 is arranged on the body 2 in such a way that it is open toward the free end of said body.
- This cradle 3 is more particularly intended for the reception of a safety to hang, in particular a ladder of roofer.
- This cradle 3 can affect a large number of forms.
- this cradle 3 forming hook is an attached piece secured by at least a portion of its edge, preferably by welding, body 2 of said hook. This particular assembly of the cradle on the body gives the entire safety hook increased resistance to deformation.
- This cradle 3 forming a hook has the shape of a C or of a lying U. It is made from a piece of metallic preference of generally square section or rectangular, such as a flat iron, so as to present a relatively large soul.
- This flat iron once conformed, for example by stamping or cutting, is welded by a portion of its edge on the body 2, in this case on the top face of this body 2.
- the positioning on the edge of the cradle 3 allows have a large soul in which openings can be easily made.
- This montage furthermore provides resistance to increased deformation of the entire cradle in particular when traction is exerted on the latter.
- This cradle 3 has at its base 5, in the connection zone 3-body cradle 2 or substantially above this last, at least one through opening 6, 14 of axis orthogonal to the longitudinal axis of the body 2.
- This opening 6 or 14 constitutes an anchor point for a safety such as a harness or a lifeline.
- the opening 6 is more particularly intended for anchoring a harness while the opening 14 is intended for receiving a lifeline.
- This or these openings are made in selected locations so that the fixing member 12 or 12 'of the body 2 to the construction element 4 works in shear and no to tearing off when the safety device anchored exerts a tensile force on said hook.
- the safety device is a harness
- a dynamic tensile force can be exerted on the hook 1 when a roofing operator falls.
- the through opening of the cradle 3 used for anchoring of a safety device can be realized from different ways. So this through opening of the cradle 3 can be formed by perforating the core of the cradle. This is the case of opening 14. This opening through the cradle can still be provided by means a notch in a location around the perimeter outside of the cradle which, in the fixed position of said cradle 3 on the body 2, cooperates with the body 2 to spare said opening. This is the case of opening 6 which affects, in Figure 1, an arc form forming a bridge. Well obviously, other embodiments of these openings through can be considered.
- the body 2 of the hook is bent at least once at its end carrying the cradle 3 to spare an inclined surface 7 extending obliquely above of said construction element 4 and matching at least one part of the back 8 of the cradle 3 so as to reinforce this latest.
- This conformation of the body 2 only reinforce the effects obtained by the positioning of through openings 6 and 14.
- this hook comprises, beyond the cradle 3 and extending along a parallel axis and separated from the longitudinal axis of said body 2, a extension 9, this extension 9 comprising an opening through 10 to receive a hooking member of a additional safety device, especially a scaffolding structure.
- a scaffolding structure are more particularly described in patent FR-A-2,245,213.
- extension 9 can arise directly at from the back 8 of the cradle 3.
- the extension 9 of said hook is formed by counter-bending the body 2 of hook.
- such safety hooks 1 are arranged in the lower part and in the upper part of a roof. These hooks are aligned along the same level line to possibly be able to pass a stringer inside the cradle. On this rail, we can slide the ring of a rope connected to a safety harness. AT the interior of this or these cradles can also be arranged the uprights of a ladder.
- Such hooks safety are intended to be permanently attached to the building element. These safety hooks will therefore fixed as the construction progresses and will therefore at least partially cover the roof, particularly with regard to the part of the hook fitted a cradle, the free end of said body being placed under the slate or the constituent tile of the roof.
- the cradle 3 of the hook 1 can perfectly remain visible on the roof without harming however to the aesthetics of said roof.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Emergency Lowering Means (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
- Pens And Brushes (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Burglar Alarm Systems (AREA)
- Surgical Instruments (AREA)
Abstract
Description
L'invention concerne un crochet de sécurité destiné à être fixé à un élément de charpente, en particulier un chevron, d'une construction pour y ancrer ou y accrocher un ou plusieurs dispositifs de sécurité tels qu'échafaudage, nacelle, échelle, plate-forme, harnais de sécurité ou autres.The invention relates to a safety hook intended to be attached to a structural element, in particular a rafter, a construction to anchor or hang on it one or several safety devices such as scaffolding, carrycot, ladder, platform, safety harness or other.
L'invention concerne plus particulièrement les crochets dits de service destinés à être placés sur une toiture inclinée pour permettre la pose de dispositifs de sécurité permettant à un intervenant en toiture de travailler en toute sécurité.The invention relates more particularly to hooks said service intended to be placed on a roof inclined to allow the installation of safety devices allowing a roofer to work in completely safe.
Le travail sur toiture, en particulier lorsque la toiture présentant une pente raide, a toujours posé des problèmes en matière de sécurité que ce soit pour la confection de ladite toiture ou pour sa réfection. Les normes de sécurité imposent aujourd'hui de disposer d'échafaudages ou de plates-formes ou d'échelles ou de harnais de sécurité permettant à l'intervenant en toiture de travailler en toute sécurité sans risque de chute et sans risque d'endommagement de la toiture elle-même. Work on the roof, especially when the roof has a steep slope, has always been problematic in terms of safety, whether it's for the making of said roof or for its repair. Safety standards require today to have scaffolding or safety platforms or ladders or harnesses allowing the roofer to work in completely safe with no risk of falling and no risk damage to the roof itself.
Des crochets de sécurité, encore appelés crochets de service, ont déjà été décrits dans la littérature. Un tel exemple de crochet de sécurité est notamment décrit dans le brevet FR-A-2.544.367. Ce crochet de sécurité se distingue par sa complexité du fait qu'il est constitué de deux éléments indépendants, à savoir un premier élément fixé au chevron et un crochet proprement dit, à la fois l'élément fixé au chevron et le crochet étant de réalisation complexe. L'élément fixé au chevron est constitué de deux plaques qui serrent latéralement le chevron en étant maintenues sur ce dernier par des boulons. Le crochet comporte quant à lui une chape devant être montée à emboítement verrouillé sur ledit élément fixé au chevron. Du fait du temps de montage et de la complexité d'un tel dispositif de sécurité, les intervenants en toiture renoncent à l'utiliser.Safety hooks, also called safety hooks service, have already been described in the literature. Such example of a safety hook is described in particular in the Patent FR-A-2,544,367. This safety hook stands out by its complexity due to the fact that it consists of two independent elements, namely a first element fixed to the chevron and an actual hook, both the element attached to the rafter and the hook being of realization complex. The element attached to the rafter consists of two plates which laterally tighten the rafter while being held on the latter by bolts. The hook includes a yoke to be mounted at interlocking locked on said element fixed to the rafter. Due to the assembly time and the complexity of such security system, roof workers give up using it.
Les autres dispositifs de sécurité de ce type connus à ce jour sont des crochets formés d'une seule pièce dont le corps est fixé par des pointes ou clous à un élément de charpente, en particulier à un chevron, et dont la portion recourbée sert à la réception d'un dispositif de sécurité à suspendre, en particulier une échelle. Une pièce rapportée et fixée par soudage au fond du crochet permet l'ancrage d'un harnais de sécurité. De tels crochets de sécurité sont décrits en particulier dans la norme européenne et la norme française NF EN 517 de novembre 1995 portant la référence ISSN03353931. Ces crochets de sécurité présentent un grand nombre d'inconvénients. Ils doivent en particulier, du fait de leur conception, être réalisés à partir de matériaux épais pour offrir la résistance souhaitée à des charges dynamiques et statiques. Il en résulte un poids et un encombrement importants du crochet risquant de nuire lors du montage, voire même d'empêcher, la pose de tels crochets. Other safety devices of this type known to this day are hooks formed in one piece whose body is fixed by points or nails to an element of frame, in particular a rafter, and whose portion curved serves to receive a safety device to hang, especially a ladder. A patch and fixed by welding to the bottom of the hook allows anchoring a safety harness. Such safety hooks are described in particular in the European standard and the standard French NF EN 517 of November 1995 bearing the reference ISSN03353931. These safety hooks have a large number of drawbacks. In particular, they must of their design, be made from materials thick to provide the desired resistance to loads dynamic and static. This results in a weight and a large dimensions of the hook which could harm mounting, or even preventing, the installation of such hooks.
Le but de la présente invention est donc de proposer un crochet de sécurité de conception simple, relativement léger, de structure mince et de pose aisée, apte à supporter une charge dynamique ou statique importante sans se déformer ou se détacher de l'élément de construction.The aim of the present invention is therefore to propose a safety hook of simple design, relatively light, of thin structure and easy installation, suitable for withstand a significant dynamic or static load without deform or detach from the building element.
Un autre but de l'invention est de proposer un crochet de sécurité dont la conception de la fixation sur un élément de construction autorise le positionnement sur ledit crochet de dispositifs de sécurité autres que les dispositifs de sécurité classiquement utilisés, en particulier des échafaudages, rendant ainsi le crochet de sécurité polyvalent.Another object of the invention is to propose a hook for safety including the design of the attachment to an element of construction allows positioning on said hook of safety devices other than safety devices conventionally used, in particular scaffolding, thus making the hook of versatile security.
A cet effet, l'invention a pour objet un crochet de sécurité selon la revendication 1. To this end, the invention relates to a hook for security according to claim 1.
Grâce à cette conception générale du crochet de sécurité, toute désolidarisation entre crochet de sécurité et élément de construction ainsi que toute déformation du crochet de sécurité sont empêchées.Thanks to this general design of the safety hook, any separation between the safety hook and the element of construction as well as any deformation of the hook of security are prevented.
Selon une forme de réalisation préférée de l'invention, le berceau formant crochet est une pièce rapportée solidarisée par au moins une portion de son chant, de préférence par soudage, au corps du crochet 1. Enfin, on peut prévoir que le corps du crochet est coudé au moins une fois à son extrémité portant le berceau pour ménager une surface inclinée s'étendant obligatoirement au-dessus dudit élément de construction et épousant au moins une partie du dos du berceau de manière à renforcer le berceau. On obtient ainsi, de manière simple donc peu onéreuse, un crochet particulièrement résistant aux charges statiques et/ou dynamiques.According to a preferred embodiment of the invention, the cradle forming hook is an attached piece by at least a portion of his song, preferably by welding, to the body of the hook 1. Finally, we can provide that the hook body is bent at least once at its end carrying the cradle to provide a surface inclined necessarily extending above said element of construction and marrying at least part of the back of the cradle so as to strengthen the cradle. We obtain thus, in a simple and therefore inexpensive manner, a hook particularly resistant to static loads and / or dynamic.
L'invention sera bien comprise à la lecture de la
description suivante d'exemples de réalisation, en
référence aux dessins annexés dans lesquels :
Le crochet de sécurité 1, conforme à l'invention, est un
crochet plus particulièrement destiné aux toitures en
pente. Ce crochet 1 est fixé à un élément de charpente 4,
en particulier un chevron, d'une construction. Ce crochet
est destiné à l'accrochage d'échelles, à la fixation de
plates-formes, à l'ancrage de harnais de sécurité, à
l'accrochage d'échafaudages, etc.The safety hook 1, according to the invention, is a
hook more particularly intended for roofs in
slope. This hook 1 is fixed to a
Ce crochet 1 est constitué, comme le montre la figure 1,
d'un corps 2 allongé destiné à venir s'appliquer par
friction sur la face supérieure dudit élément de charpente
4. Ce corps 2 est généralement constitué à l'origine par
une plaque métallique d'allure générale rectangulaire,
cette plaque pouvant être éventuellement conformée par
pliage comme il sera décrit ci-après. Ce corps 2 est
assujetti à l'élément de charpente 4 par au moins un organe
de fixation. Dans l'exemple de réalisation représenté à la
figure 1, deux organes de fixation 12 et 12' sont
représentés, l'organe 12' étant également appelé dans ce
qui suit organe de serrage. En effet, généralement, le
corps 2 présente un ou plusieurs perçages traversants 15 au
voisinage de l'une de ses extrémités, appelée extrémité
libre, pour le passage d'organes de fixation tels que des
clous 12. Ce corps 2 du crochet 1 peut en outre comporter
au moins une patte de fixation 11 formant un ensemble
monobloc avec ledit corps 2, cette patte de fixation 11
étant destinée à s'appliquer par friction sur la face
latérale de l'élément de charpente 4 au moyen d'au moins un
organe de serrage 12' traversant, par ladite patte de
fixation 11, ledit élément de charpente 4. Cet organe de
serrage 12' est par exemple une tige filetée. Cette tige
filetée s'engage suivant un axe, représenté en trait mixte
à la figure 1, dans un perçage ménagé dans l'élément de
charpente 4. Le maintien de cet organe de serrage 12' est
obtenu au moyen d'un organe de fixation approprié tel qu'un
simple écrou. Pour parfaire la fixation, il peut être
inséré, entre l'écrou formant l'organe de fixation et la
face du chevron 4, une rondelle à griffes 13, les griffes
de cette rondelle étant aptes à pénétrer, au cours d'un
serrage de l'organe de serrage 12', dans l'élément de
charpente 4. Bien que cette patte de fixation 11 ne soit
pas obligatoire, elle permet, lorsqu'elle est présente, de
renforcer la résistance de la fixation du crochet de
sécurité 1 à l'élément de charpente 4. Cette patte de
fixation 11 qui forme un ensemble monobloc avec le corps 2
peut être constituée par une simple plaque pourvue d'un
perçage traversant pour le passage de l'organe de serrage
12', cette plaque étant soudée à une portion de bord
longitudinal de ce dernier comme le montre la figure 1.
Cette patte de fixation 11 peut également être formée d'une
seule pièce avec le corps 2. Ainsi, cette patte de fixation
11 peut être réalisée par pliage par torsion de l'extrémité
libre du corps 2 comme le montre la figure 4. La portion du
corps 2 s'étendant entre la zone de torsion et l'extrémité
libre du corps 2 comporte au moins un perçage traversant et
sert à la fixation de la patte 11 à l'élément de charpente
4. L'élément de serrage utilisé est identique à l'organe
12' décrit ci-dessus.This hook 1 is made up, as shown in FIG. 1,
an
Ce crochet de sécurité 1 comporte en outre un berceau 3
constituant à proprement dit le crochet. Ce berceau 3 est
disposé à, ou au voisinage de, l'une des extrémités dudit
corps 2 et est solidarisé à ce dernier. Ce berceau 3 est
disposé sur le corps 2 de manière telle qu'il est ouvert
vers l'extrémité libre dudit corps. Ce berceau 3 est plus
particulièrement destiné à la réception d'un dispositif de
sécurité à suspendre, en particulier une échelle de
couvreur. Ce berceau 3 peut affecter un grand nombre de
formes. Dans les exemples représentés, ce berceau 3 formant
crochet est une pièce rapportée solidarisée par au moins
une portion de son chant, de préférence par soudage, au
corps 2 dudit crochet. Ce montage particulier du berceau
sur le corps confère à l'ensemble du crochet de sécurité
une résistance accrue à la déformation.This safety hook 1 also comprises a
Ce berceau 3 formant crochet affecte la forme d'un C ou
d'un U couché. Il est réalisé à partir d'une pièce de
préférence métallique de section généralement carrée ou
rectangulaire, tel qu'un fer plat, de manière à présenter
une âme de dimension relativement importante. Ce fer plat
une fois conformé, par exemple par emboutissage ou
découpage, est soudé par une portion de sa tranche sur le
corps 2, en l'occurence sur la face du dessus de ce corps
2. Le positionnement sur la tranche du berceau 3 permet de
disposer d'une âme de grande dimension dans laquelle des
ouvertures peuvent êtres aisément ménagées. Ce montage
permet en outre l'obtention d'une résistance à la
déformation accrue de l'ensemble du berceau en particulier
lorsqu'une traction est exercée sur ce dernier.This
Ce berceau 3 comporte à sa base 5, dans la zone de liaison
berceau 3-corps 2 ou sensiblement au-dessus de cette
dernière, au moins une ouverture traversante 6, 14 d'axe
orthogonal à l'axe longitudinal du corps 2. Cette ouverture
6 ou 14 constitue un point d'ancrage d'un dispositif de
sécurité tel qu'un harnais ou une ligne de vie. En
l'occurrence, l'ouverture 6 est plus particulièrement
destinée à l'ancrage d'un harnais tandis que l'ouverture 14
est destinée à la réception d'une ligne de vie. Cette ou
ces ouvertures sont ménagées en des emplacements choisis
pour que l'organe de fixation 12 ou 12' du corps 2 à
l'élément de construction 4 travaille en cisaillement et
non à l'arrachement lorsque le dispositif de sécurité ancré
exerce une force de traction sur ledit crochet. Par
exemple, lorsque le dispositif de sécurité est un harnais,
une force de traction dynamique peut être exercée sur le
crochet 1 lors de la chute d'un intervenant en toiture. This
Du fait du positionnement des ouvertures 6 ou 14, on ne
constate, lors d'un tel événement, ni déformation dudit
crochet 1, ni modification de la liaison entre corps 2 et
élément de construction 4. Ce qui signifie que la fixation
entre corps 2 et élément de construction 4 est apte à être
agencée pour résister à de tels efforts.Due to the positioning of the
L'ouverture traversante du berceau 3 servant à l'ancrage
d'un dispositif de sécurité peut être réalisée de
différentes manières. Ainsi, cette ouverture traversante du
berceau 3 peut être constituée par perforation de l'âme du
berceau. C'est le cas de l'ouverture 14. Cette ouverture
traversante du berceau peut encore être ménagée au moyen
d'une échancrure ménagée en un emplacement du pourtour
extérieur du berceau qui, en position fixée dudit berceau 3
sur le corps 2, coopère avec le corps 2 pour ménager ladite
ouverture. C'est le cas de l'ouverture 6 qui affecte, dans
la figure 1, une forme en arc formant pont. Bien
évidemment, d'autres modes de réalisation de ces ouvertures
traversantes peuvent être envisagés.The through opening of the
Il est encore possible d'augmenter la résistance d'un tel
crochet de sécurité en conformant le corps 2 du crochet de
manière appropriée. Ainsi, dans l'exemple représenté aux
figures 1 et 2, le corps 2 du crochet est coudé au moins
une fois à son extrémité portant le berceau 3 pour ménager
une surface 7 inclinée s'étendant obliquement au-dessus
dudit élément de construction 4 et épousant au moins une
partie du dos 8 du berceau 3 de manière à renforcer ce
dernier. Cette conformation du corps 2 ne fait que
renforcer les effets obtenus par le positionnement des
ouvertures traversantes 6 et 14.It is still possible to increase the resistance of such
safety hook by conforming the
En outre, afin de rendre ce crochet de sécurité polyvalent
par rapport aux crochets existants, ce crochet comporte,
au-delà du berceau 3 et s'étendant suivant un axe parallèle
et écarté de l'axe longitudinal dudit corps 2, un
prolongement 9, ce prolongement 9 comportant une ouverture
traversante 10 pour recevoir un organe d'accrochage d'un
dispositif de sécurité supplémentaire, en particulier une
structure d'échafaudage. De telles structures d'échafaudage
sont plus particulièrement décrites dans le brevet FR-A-2.245.213.Furthermore, in order to make this safety hook versatile
compared to existing hooks, this hook comprises,
beyond the
Ce prolongement 9 peut prendre naissance directement à
partir du dos 8 du berceau 3. Toutefois, dans un mode de
réalisation préféré de l'invention, le prolongement 9 dudit
crochet est ménagé par contre-coudage du corps 2 de
crochet.This
Généralement, de tels crochets 1 de sécurité sont disposés en partie basse et en partie haute d'une toiture. Ces crochets sont alignés suivant une même ligne de niveau pour pouvoir éventuellement passer une lisse à l'intérieur du berceau. Sur cette lisse, on pourra faire coulisser l'anneau d'une corde relié à un harnais de sécurité. A l'intérieur de ce ou ces berceaux peuvent également être disposés les montants d'une échelle. De tels crochets de sécurité sont destinés à être fixés de manière permanente à l'élément de construction. Ces crochets de sécurité seront donc fixés au fur et à mesure de la construction et recouvriront donc au moins partiellement la toiture, en particulier en ce qui concerne la partie du crochet équipée d'un berceau, l'extrémité libre dudit corps étant quant à elle placée sous l'ardoise ou la tuile constitutive de la toiture.Generally, such safety hooks 1 are arranged in the lower part and in the upper part of a roof. These hooks are aligned along the same level line to possibly be able to pass a stringer inside the cradle. On this rail, we can slide the ring of a rope connected to a safety harness. AT the interior of this or these cradles can also be arranged the uprights of a ladder. Such hooks safety are intended to be permanently attached to the building element. These safety hooks will therefore fixed as the construction progresses and will therefore at least partially cover the roof, particularly with regard to the part of the hook fitted a cradle, the free end of said body being placed under the slate or the constituent tile of the roof.
Du fait de son profil, le berceau 3 du crochet 1 peut
parfaitement rester apparent sur la toiture sans nuire
toutefois à l'esthétique de ladite toiture.Because of its profile, the
Claims (8)
- Safety hook (1) suitable for fixing to a structural element (4) in particular a rafter of a construction, for hooking on at least one safety device such as a ladder, platform or harness, this hook consisting of an elongated body (2) intended to make frictional contact with the upper surface of the said structural element (4) and to be fixed to the latter by at least one fixing member (12, 12'), [lacuna) a cradle (3) forming a hook, integral with the said body (2) and arranged at or in the vicinity of one of the ends of the body, this cradle (3) being open towards the free end of the said body, in particular for receiving a safety device to be suspended, characterised in that the cradle (3) has at its base (5), in the zone where the cradle (3) is joined to the body (2) or essentially above this zone, at least one opening (6, 14) passing from the orthogonal axis to the longitudinal axis of the body (2), this opening (6), 14), suitable for forming an anchoring point for a safety device, such as a harness, being made either by perforation of the web of the cradle (3) or by means of scalloping of the outer periphery of the cradle which, when the cradle is in the position fixed on the body (2), interacts with the body (2) to delimit the said opening.
- Hook according to Claim 1,
characterised in that the cradle (3) forming a hook is a separate part joined by at least a portion of its edge, preferably by welding, to the body (2) of the said hook (1). - Hook according to one of Claims 1 or 2,
characterised in that the cradle (3) forming a hook is a part, preferably a metal part, of square or rectangular cross-section, such as flat bar iron assuming the shape of a C or of a U on its side. - Hook according to one of Claims 1 to 3,
characterised in that the body (2) of the hook is bent at least once at its end supporting the cradle (3) to produce an inclined surface (7) extending obliquely above the said structural element (4) and marrying at least part of the back (8) of the cradle so as to reinforce the cradle. - Hook according to one of Claims 1 to 4,
characterised in that the said hook (1) has, beyond the cradle (3), an extension (9) extending in accordance with an axis that is parallel to and some distance away from the longitudinal axis of the said body (2), this extension (9) having an opening (10) through it for receiving a securing member of a supplementary safety device, in particular a scaffolding structure. - Hook according to Claim 5,
characterised in that the extension (9) of the said hook (1) is produced by cranking the body (2) of the hook (1). - Hook according to one of Claims 1 to 6,
characterised in that the body (2) of the hook (1) has one or more drilled holes (15) passing through it in the vicinity of its free end for passage of fixing members (12) such as nails. - Hook according to one of Claims 1 to 7,
characterised in that the body (2) of the hook (1) also has at least one fixing tab (11) forming an integral whole with the said body (2), this fixing tab (11) being intended to make frictional contact with the side face of the structural element (4) by means of at least one locking member (12') passing through the said structural element (4) via the said fixing tab (11) .
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9613940 | 1996-11-15 | ||
FR9613940A FR2756027B1 (en) | 1996-11-15 | 1996-11-15 | SAFETY HOOK |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0843057A1 EP0843057A1 (en) | 1998-05-20 |
EP0843057B1 true EP0843057B1 (en) | 2003-11-26 |
Family
ID=9497651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97402230A Expired - Lifetime EP0843057B1 (en) | 1996-11-15 | 1997-09-25 | Security hook |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0843057B1 (en) |
AT (1) | ATE255196T1 (en) |
DE (1) | DE69726382T2 (en) |
DK (1) | DK0843057T3 (en) |
ES (1) | ES2210476T3 (en) |
FR (1) | FR2756027B1 (en) |
PT (1) | PT843057E (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7637351B2 (en) | 2005-01-25 | 2009-12-29 | Roger Langsmead | Scaffold safety apparatus |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2773856B1 (en) * | 1998-01-16 | 2000-02-25 | Dimos | SAFETY HOOK |
JO2409B1 (en) | 2000-11-21 | 2007-06-17 | شركة جانسين فارماسوتيكا ان. في | Biphenylcarboxamides useful as lipid lowering agents |
FR2861778B1 (en) * | 2003-10-29 | 2008-02-08 | Participations G | PERMANENT SECURITY ANCHORING DEVICE WITH SECURE FASTENING |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2544367B1 (en) * | 1983-04-15 | 1985-06-28 | Vanacker Yves | IMPROVEMENTS ON HOOKS FOR ROOFS |
-
1996
- 1996-11-15 FR FR9613940A patent/FR2756027B1/en not_active Expired - Fee Related
-
1997
- 1997-09-25 DK DK97402230T patent/DK0843057T3/en active
- 1997-09-25 EP EP97402230A patent/EP0843057B1/en not_active Expired - Lifetime
- 1997-09-25 DE DE69726382T patent/DE69726382T2/en not_active Expired - Lifetime
- 1997-09-25 ES ES97402230T patent/ES2210476T3/en not_active Expired - Lifetime
- 1997-09-25 PT PT97402230T patent/PT843057E/en unknown
- 1997-09-25 AT AT97402230T patent/ATE255196T1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7637351B2 (en) | 2005-01-25 | 2009-12-29 | Roger Langsmead | Scaffold safety apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE69726382D1 (en) | 2004-01-08 |
DE69726382T2 (en) | 2004-09-09 |
PT843057E (en) | 2004-04-30 |
DK0843057T3 (en) | 2004-04-05 |
ATE255196T1 (en) | 2003-12-15 |
FR2756027B1 (en) | 1999-01-15 |
FR2756027A1 (en) | 1998-05-22 |
ES2210476T3 (en) | 2004-07-01 |
EP0843057A1 (en) | 1998-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1927707B1 (en) | Safety device applied to machines for lifting wall and ceiling panels | |
EP2687267B1 (en) | Device for anchoring on a roof, in particular on a roof with a sealing membrane | |
US20080302934A1 (en) | Roofing bracket for supporting a platform | |
EP0843057B1 (en) | Security hook | |
EP1607551B1 (en) | Fixation element for a wire fence to a post, and fence implementing such elements | |
EP0099298B1 (en) | Fastening means to a building and application to the realization of scaffoldings | |
EP0881339B1 (en) | Remaining fastening arrangement for safety-roof anchors | |
FR2743103A1 (en) | SECURITY GUARD PANEL, IN PARTICULAR FOR MULTIDIRECTIONAL SCAFFOLDING | |
EP0141730B1 (en) | Anchoring device for devices used for working on roofs | |
FR2544367A1 (en) | Improvements to service hooks for roofs | |
FR2947851A1 (en) | Safety balustrade forming device for terraced roof of building, has rail fixed at upper ends of bent parts of posts, and studs for allowing fixation of panels, where panels are inclined with respect to horizontal in fixation position | |
FR2773856A1 (en) | Safety hook fixed to rafters | |
EP0930407B1 (en) | Arrangement for securing a scaffold-structure | |
EP3088619A1 (en) | Attachment device for a construction element with considerable overhang | |
BE1021074B1 (en) | ROOF PROTECTION DEVICE | |
FR2801331A1 (en) | Safety structure for working on roof comprises square bracket with two branches, base branch has anchoring point engaging independent anchoring part fixed to purlin | |
EP1433501B1 (en) | Device for the fastening of an anchoring post to a supporting structure | |
FR2930272A1 (en) | Scaffolding console for roof of building, has hooking cam pin curved into L-shape, and comprising branch extending perpendicularly under hooking arm towards base and another branch extending laterally to arm and perpendicular arm | |
FR2755164A1 (en) | Scaffold coupling | |
FR2921085A1 (en) | Safety hook for suspended gutter, has rigid slide whose end is fixed on rod by pivoting unit, where unit pivots slide between disengaged position of gutter support and position at which end with orifice of slide overhangs gutter support | |
FR2588031A1 (en) | Anchoring device | |
FR2585402A1 (en) | MAT SCALE | |
BE1018203A3 (en) | Hook anchor for roof. | |
FR2594462A1 (en) | Device for fixing a section of edge and under-edge cladding as well as a gutter at the edge of a roof. | |
FR2861778A1 (en) | PERMANENT SECURITY ANCHORING DEVICE WITH SECURE FASTENING |
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): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;RO;SI |
|
17P | Request for examination filed |
Effective date: 19981028 |
|
AKX | Designation fees paid |
Free format text: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20020926 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031126 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69726382 Country of ref document: DE Date of ref document: 20040108 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: FRENCH |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040226 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040226 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: E. BLUM & CO. PATENTANWAELTE |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040310 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20040220 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2210476 Country of ref document: ES Kind code of ref document: T3 |
|
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 |
Effective date: 20040827 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: DIMOS, SOCIETE ANONYME Free format text: DIMOS, SOCIETE ANONYME#RUE DU TERTRE#44150 ANCENIS (FR) -TRANSFER TO- DIMOS, SOCIETE ANONYME#RUE DU TERTRE#44150 ANCENIS (FR) |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20100922 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PT Payment date: 20100917 Year of fee payment: 14 Ref country code: DK Payment date: 20100913 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20120326 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120326 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110930 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IE Payment date: 20120928 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20121019 Year of fee payment: 16 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110925 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130925 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20141007 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130926 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20160920 Year of fee payment: 20 Ref country code: DE Payment date: 20160921 Year of fee payment: 20 Ref country code: NL Payment date: 20160920 Year of fee payment: 20 Ref country code: GB Payment date: 20160920 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20160921 Year of fee payment: 20 Ref country code: FR Payment date: 20160921 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20160920 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20160922 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69726382 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MK Effective date: 20170924 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20170924 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 255196 Country of ref document: AT Kind code of ref document: T Effective date: 20170925 |
|
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 EXPIRATION OF PROTECTION Effective date: 20170924 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MK Effective date: 20170925 |