EP1651314B1 - Device for protecting a user in the event of a fall from an essentially-vertical path - Google Patents

Device for protecting a user in the event of a fall from an essentially-vertical path Download PDF

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Publication number
EP1651314B1
EP1651314B1 EP04742702A EP04742702A EP1651314B1 EP 1651314 B1 EP1651314 B1 EP 1651314B1 EP 04742702 A EP04742702 A EP 04742702A EP 04742702 A EP04742702 A EP 04742702A EP 1651314 B1 EP1651314 B1 EP 1651314B1
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EP
European Patent Office
Prior art keywords
substantially vertical
vertical path
strap
hooking
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04742702A
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German (de)
French (fr)
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EP1651314A1 (en
Inventor
Bernard Mei
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MODALIS
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Modalis
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Publication date
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Publication of EP1651314A1 publication Critical patent/EP1651314A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • A62B35/005—Vertical lifelines
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • A62B35/0068—Anchors
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0081—Equipment which can travel along the length of a lifeline, e.g. travelers
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
    • E06C7/187—Guiding rail

Definitions

  • the present invention relates to a device for protecting a user in the event of a fall of a substantially vertical path such as a ladder.
  • This device is for example usable on a tank vehicle, or a container, the constitution of which requires the user to mount on the upper part to access the loading devices.
  • substantially vertical means any path taken by the user to move in a substantially vertical direction.
  • This way can be arranged as a ladder, a stepladder, a staircase, a vertical or sloping wall provided with steps and / or catches, a via ferrata, or a pylon along which catches and / or steps are provided .
  • This path may be undeveloped as a wooden pole or tree along which the examiner can climb using claws.
  • a device for protecting a user in the event of a fall of a substantially vertical path comprising a harness equipped with a self-locking rewinder with automatic return of a link having a free end provided with a hooking means to a guide element extending along the substantially vertical path between a lower part and an upper end thereof, the device comprising stop means of the attachment means , the abutment means being displaceable along the guide element between the lower part and the upper end of the substantially vertical path and immobilizable in the vicinity of the upper end of the substantially vertical path.
  • the user can bring the attachment means at the upper end of the substantially vertical path and immobilize it.
  • the link as a strap is gradually wound or unwound.
  • the body of the user exerts a violent pull on the strap which causes the actuation of the locking means of the self-locking reel.
  • the height of the fall is then reduced to the length of webbing that unwound under the violent traction before the locking means come into action. Given the speed of operation of the locking means current reels, this length is very limited.
  • the abutment means comprise a pole having an end arranged to cooperate by sliding with the guide element and bear under the attachment means, and means for fixing the pole along the guiding element.
  • the guide element thus facilitates handling of the pole.
  • This embodiment is particularly simple, quick to implement and robust.
  • said end of the pole is provided with a stirrup extending around the guide element.
  • stirrup guides the end of the pole which is therefore particularly easy to handle.
  • the abutment means comprise at least one pulley mounted in the vicinity of the lower part of the substantially vertical track, at least one pulley mounted in the vicinity of the upper end of the substantially vertical track, a flexible element. extending in a loop around the two pulleys, a support element mounted to slide on the guide element and connected to a strand of the flexible element and means for locking the flexible element in position when the support element is at near the upper end of the substantially vertical path.
  • This embodiment is also very simple and robust. It makes it possible to equip substantially vertical channels of greater width than with the previous embodiment.
  • a vehicle 1 such as a truck, a trailer or a semi-trailer Certainly, the invention is here described in application to a vehicle 1 (such as a truck, a trailer or a semi-trailer Certainly, the invention is here described in application to a vehicle 1 (such as a truck, a trailer or a semi-trailer ”) which is provided with a ladder 2 allowing a user 3 of access to the roof 4.
  • a vehicle 1 such as a truck, a trailer or a semi-trailer .
  • the protection device comprises a fixed line (or flexible anchoring support according to EN 795) generally designated 5 which comprises a vertical section 5.1 extending along the scale 2 and a horizontal section 5.2 extending on the roof 4.
  • a fixed line or flexible anchoring support according to EN 795
  • EN 795 generally designated 5 which comprises a vertical section 5.1 extending along the scale 2 and a horizontal section 5.2 extending on the roof 4.
  • the fixed line 5 is formed of a cable having ends 6 (only one of which is visible in the figures) which are fixed in a manner known per se to the vehicle so as to maintain the fixed line 5 in tension.
  • the fixed line is supported at regular intervals by anchoring elements generally designated 7, 8 each comprising a tube 9, 10 which receives the fixed line 5 and which is connected by lateral fingers 11, 12 to fixing means to the vehicle 1.
  • the tube 9 of the anchoring element 7 has a shape of a stick which comprises an end in the extension of the vertical section 5.1 and an end in the extension of the horizontal section 5.2.
  • the fastening means of the tube 9 comprise a collar 13 attached to an upper end of a ladder upright 2 and a flange 14 screwed or welded to the roof 4 of the vehicle 1.
  • anchoring elements 8 (but only one is visible in the figures) are distributed along the horizontal section 5.2.
  • the fixing means are flanges 15 screwed or welded to the roof 4 of the vehicle 1.
  • a slide generally designated 16 (or movable anchoring point according to the aforementioned standard) is mounted to slide on the fixed line 5.
  • the slide 16 known in itself, comprises a tubular body 17 along which is provided a slot 18 allowing the lateral introduction of the fixed line 5 in the body 17.
  • Known retractable means (not visible in the figures) are provided to prevent the passage of the fixed line 5 in the slot 18.
  • a ring 20 is secured 17. The ring 20 is positioned with respect to the slot 18 so that, when the ring 20 is pulled to move the slide 16 along the fixed line 5, the slot 18 allows the passage of the lateral fingers 11, 12 (see figure 7 ).
  • anchoring element 7 in the shape of a butt ensures the continuity of the sliding of the slider 16 between the vertical section 5.1 and the horizontal section 5.2.
  • the protective device comprises a harness 21 intended to be worn by the user and equipped with a self-locking reel 22 and automatic return of a strap 23.
  • the reel 17 is known in him -even.
  • the strap 23 is here associated with an energy absorber and has a free end provided with a carabiner 24 for attaching the strap 23 to the slider 16 and thus to the fixed line 5.
  • the protective device comprises abutment means which are displaceable along the vertical section 5.1 between the lower part and the upper end of the scale 2 and can be immobilized in the vicinity of the upper end of the scale 2.
  • these abutment means comprise a tubular pole 25 having ends 26, 27 arranged to removably receive pins 28, 29 secured to the vehicle 1 so that once received between the pins 28 ,
  • the boom 25 extends parallel to the vertical section 5.1 of the fixed line 5.
  • the ends 26, 27 and / or the pins 28, 29 may be sheathed with a vibration-damping material.
  • the end 26 is provided with a stirrup 30 in which the vertical section 5.1 passes.
  • the end 27 and the corresponding pin 29 are pierced transversely to receive a pin 31 to make the pole 25 integral with the vehicle by opposing its release pins 28, 29.
  • the user 3 removes the pin 31 and disengages the pole 25 from the pins 28, 29 to bring the end 26 into the lower part of the scale 2 (see figure 6 ).
  • the slide 16 being mounted above the stirrup 30, the user hooks the carabiner 24 to the ring 20 then manipulates the pole to engage it again between the pins 28, 29 before putting the pin 31 (see the figures 5 then 1 and 3).
  • the vertical section 5.1 guides the slide 16 and the end 26 of the pole 25, which facilitates its handling.
  • stirrup 30 and the slide 16 are then adjacent to the upper end of the ladder 2 ( figure 2 ) and the stirrup 30, held in position by the pole 25 immobilized by the pins 28, 29, forms a stop opposing any downward movement of the slide 16.
  • the stirrup 30 and the boom 25, by blocking the slider 16 stops the fall of a user who has fallen from the ladder.
  • the user can then climb the ladder 2 while being insured and then access the roof 4.
  • the abutment means comprise a pair of pulleys 40 mounted on the vehicle 1 in the vicinity of the lower part of the ladder 2 and a pair of pulleys 41 mounted in the vicinity of the upper end of the scale 2.
  • a cable 42 extends in a loop around the pulleys 40, 41 so as to include a strand 42.1 parallel to and adjacent to the vertical section 5.1.
  • a ring 43 is fixed to this strand 42.1 of the cable 42 and is mounted to slide on the vertical section 5.1.
  • the slider 16 is mounted above the ring 43.
  • a locking cable 44 is attached to the strand 42.2 of the cable 42.
  • the locking cable 44 has an opposite end which can be hooked to the vehicle 1 on the side of the pair of pulleys 40 to immobilize the ring 43 in the vicinity from the upper end of the scale 2 (as shown in figure 8 ).
  • the cable 42 is here made in two parts connected by rings to which are attached the ring 43 and the cable 44.
  • the invention can be used in association with many means of transport and in particular terrestrial such as tank vehicles, railway as the wagons, river or sea for access to the holds of boats, or with mobile structures used in transport or handling like containers or overhead cranes.
  • the invention can also be used with fixed structures such as buildings, gantries ...
  • a belay rail may be used instead of all or part of the cable forming in the embodiments described the fixed line 5.
  • the fixed line 5 may extend only along scale 2 or include several vertical and / or horizontal sections. The horizontal section of the fixed line may follow or precede the vertical section.
  • the guide element may be in the form of a rod.
  • This embodiment can be used on a vehicle provided with at least one door, the rod being mounted next to the ladder on the door to have an upper end near and in the extension of the stick when the door is closed.
  • the intermediate anchoring element 7 may be produced by means of a chute shaped as a hook to receive the cable forming the fixed line 5. When no other intermediate anchoring element is provided, the strap may then be hooked to the fixed line 5 directly by the carabiner which can be slid between the chute and the cable to pass the intermediate anchoring element 7.
  • attachment means have been shown in the form of a slider to which the strap is hooked by a carabiner, other attachment means can be used as a carabiner directly hooked to the fixed line when the fixed line n is not associated with intermediate anchors.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

The device has a harness including an auto-blocking reel (22) that automatically retrieves a strap (23). The strap has a free end including a snap hook that hooks the strap to a slide. A tubular rod (25) is displaced along a ladder between a lower part and an upper part of a ladder and is immobilized in the vicinity of the upper part of the ladder. The rod has two ends arranged for receiving two pins integrated to a vehicle.

Description

La présente invention concerne un dispositif de protection d'un utilisateur en cas de chute d'une voie sensiblement verticale telle qu'une échelle. Ce dispositif est par exemple utilisable sur un véhicule citerne, ou un conteneur, dont la constitution oblige l'utilisateur à monter sur la partie supérieure pour accéder aux organes de chargement.The present invention relates to a device for protecting a user in the event of a fall of a substantially vertical path such as a ladder. This device is for example usable on a tank vehicle, or a container, the constitution of which requires the user to mount on the upper part to access the loading devices.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Il est connu de disposer sur la partie supérieure de la citerne une ligne fixe (ou ligne de vie) à laquelle il est possible d'accrocher une sangle reliée à un harnais porté par l'utilisateur. Un tel équipement est très efficace en cas de chute depuis la partie haute mais ne permet pas de protéger l'utilisateur lorsque celui-ci est en train de grimper ou de descendre l'échelle d'accès à la partie supérieure de la citerne.It is known to have on the upper part of the tank a fixed line (or lifeline) to which it is possible to hang a strap connected to a harness worn by the user. Such equipment is very effective in case of a fall from the top but does not protect the user when it is climbing or descending the ladder access to the top of the tank.

Pour obvier à cet inconvénient, il est connu de monter le long de l'échelle une ligne fixe raccordée à la ligne horizontale courant sur la partie supérieure de la citerne. L'extrémité libre de la sangle est pourvue de moyens d'accrochage montés pour coulisser sur la ligne fixe. A intervalles réguliers le long de la ligne fixe, des butées sont prévues pour bloquer le mouvement de descente du moyen d'accrochage en cas de chute de l'utilisateur. Ce système présente l'inconvénient d'avoir un temps de réaction relativement long si le moyen d'accrochage est relativement éloigné de la butée lors de la chute. En outre, à la montée, l'utilisateur est obligé de manipuler le moyen d'accrochage pour lui faire passer les butées. Ces inconvénients tendent à dissuader les utilisateurs de s'accrocher à la ligne fixe verticale lorsqu'ils empruntent l'échelle. Il existe également des moyens d'accrochage comportant un système de freinage incorporé. Il est alors toutefois nécessaire d'avoir une sangle courte de telle manière que le moyen d'accrochage soit proche de l'utilisateur lorsqu'il est sur l'échelle. Ceci entrave les mouvements de l'utilisateur. Pour permettre à l'utilisateur de se relever une fois sur la partie supérieure, il est prévu une seconde sangle, de plus grande longueur ou à enrouleur, avec laquelle l'utilisateur s'accroche à la ligne horizontale avant de décrocher la sangle courte accrochée à la ligne verticale. Les opérations inverses sont réalisées à la descente. Ces manipulations sont relativement fastidieuses pour l'utilisateur qui doit les réaliser correctement pour évoluer en sécurité.To obviate this drawback, it is known to mount along the ladder a fixed line connected to the horizontal line running on the upper part of the tank. The free end of the strap is provided with hooking means mounted to slide on the fixed line. At regular intervals along the fixed line, stops are provided to block the downward movement of the attachment means in case of fall of the user. This system has the disadvantage of having a relatively long reaction time if the attachment means is relatively remote from the stop during the fall. In addition, when climbing, the user is forced to manipulate the attachment means to pass the stops. These drawbacks tend to deter users from clinging to the vertical fixed line when they take the ladder. There are also hooking means comprising an incorporated braking system. It is then necessary, however, to have a short strap in such a way that the hooking means be close to the user when on the scale. This hinders the movements of the user. To allow the user to get up once on the top, there is a second strap, longer or retractor, with which the user clings to the horizontal line before unhooking the short strap hung at the vertical line. Inverse operations are performed on descent. These manipulations are relatively tedious for the user who must perform them correctly to evolve safely.

Il est connu par ailleurs dans le domaine de la maintenance des pylônes électriques, notamment du document FR-A-2 448 355 , d'accrocher au moyen d'une perche l'extrémité libre d'une sangle à un point fixe voisin de l'extrémité supérieure du pylône. La manoeuvre d'accrochage est relativement délicate à réaliser en raison, d'une part, de l'éloignement de l'utilisateur par rapport à la zone d'accrochage et, d'autre part, du ballant résultant de la longueur de la perche. En outre, dans une application à une citerne équipée d'une ligne fixe horizontale, il serait nécessaire qu'arrivé en haut de l'échelle l'utilisateur se décroche du point fixe auquel il s'est amarré au moyen de la perche pour se raccrocher à la ligne fixe horizontale. Afin que l'utilisateur soit constamment assuré, deux sangles à accrocher puis décrocher successivement devraient être utilisées de telle manière que l'utilisateur soit en permanence relié à un point fixe par au moins une des sangles. Là encore, ces manipulations, relativement fastidieuses, doivent être réalisées correctement sans quoi la sécurité de l'utilisateur n'est pas assurée.It is also known in the field of the maintenance of electrical pylons, particularly the document FR-A-2,448,355 to hang by means of a pole the free end of a strap at a fixed point near the upper end of the pylon. The attachment maneuver is relatively difficult to carry out because, on the one hand, the distance from the user with respect to the attachment zone and, on the other hand, the balloon resulting from the length of the pole . In addition, in an application to a tank equipped with a horizontal fixed line, it would be necessary that at the top of the ladder the user is unhooked from the fixed point to which he moored by means of the pole for himself. hang up on the horizontal fixed line. So that the user is constantly assured, two straps to hang and then pick up successively should be used in such a way that the user is permanently connected to a fixed point by at least one of the straps. Again, these manipulations, relatively tedious, must be done properly otherwise the user's safety is not assured.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Il serait donc intéressant de disposer d'un moyen permettant un assurage efficace de l'utilisateur d'une voie sensiblement verticale. Par voie sensiblement verticale, on entend toute voie empruntée par l'utilisateur pour se déplacer selon une direction sensiblement verticale. Cette voie peut être aménagée comme une échelle, un escabeau, un escalier, une paroi verticale ou en pente pourvue de marches et / ou de prises, une via ferrata, ou encore un pylône le long duquel des prises et / ou des marches sont prévues. Cette voie peut être non aménagée comme un poteau en bois ou un arbre le long duquel l'examinateur peut grimper en utilisant des griffes.It would therefore be interesting to have a means allowing an effective reassuring of the user of a substantially vertical path. By substantially vertical means any path taken by the user to move in a substantially vertical direction. This way can be arranged as a ladder, a stepladder, a staircase, a vertical or sloping wall provided with steps and / or catches, a via ferrata, or a pylon along which catches and / or steps are provided . This path may be undeveloped as a wooden pole or tree along which the examiner can climb using claws.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

A cet effet, on prévoit, selon l'invention, un dispositif de protection d'un utilisateur en cas de chute d'une voie sensiblement verticale comprenant un harnais équipé d'un dévideur auto-bloquant à rappel automatique d'un lien ayant une extrémité libre pourvue d'un moyen d'accrochage à un élément de guidage s'étendant le long de la voie sensiblement verticale entre une partie basse et une extrémité haute de celle-ci, le dispositif comprenant des moyens de butée du moyen d'accrochage, les moyens de butée étant déplaçables le long de l'élément de guidage entre la partie basse et l'extrémité haute de la voie sensiblement verticale et immobilisables au voisinage de l'extrémité haute de la voie sensiblement verticale.For this purpose, according to the invention, provision is made for a device for protecting a user in the event of a fall of a substantially vertical path comprising a harness equipped with a self-locking rewinder with automatic return of a link having a free end provided with a hooking means to a guide element extending along the substantially vertical path between a lower part and an upper end thereof, the device comprising stop means of the attachment means , the abutment means being displaceable along the guide element between the lower part and the upper end of the substantially vertical path and immobilizable in the vicinity of the upper end of the substantially vertical path.

Ainsi, depuis la partie basse de la voie sensiblement verticale, l'utilisateur peut amener le moyen d'accrochage au niveau de l'extrémité supérieure de la voie sensiblement verticale et immobiliser celui-ci. Au fur et à mesure qu'il monte ou descend la voie sensiblement verticale, le lien comme une sangle, est progressivement enroulé ou dévidé. En cas de chute, le corps de l'utilisateur exerce une traction violente sur la sangle qui provoque l'actionnement des moyens de blocage du dévidoir auto-bloquant. La hauteur de la chute est alors réduite à la longueur de sangle qui s'est dévidée sous la traction violente avant que les moyens de blocage n'entrent en action. Compte-tenu de la rapidité d'actionnement des moyens de blocage des dévidoirs actuels, cette longueur est très limitée.Thus, since the lower part of the substantially vertical path, the user can bring the attachment means at the upper end of the substantially vertical path and immobilize it. As it goes up or down the substantially vertical path, the link as a strap, is gradually wound or unwound. In case of a fall, the body of the user exerts a violent pull on the strap which causes the actuation of the locking means of the self-locking reel. The height of the fall is then reduced to the length of webbing that unwound under the violent traction before the locking means come into action. Given the speed of operation of the locking means current reels, this length is very limited.

Selon un premier mode de réalisation, les moyens de butée comprennent une perche ayant une extrémité agencée pour coopérer par coulissement avec l'élément de guidage et prendre appui sous le moyen d'accrochage, et des moyens de fixation de la perche le long de l'élément de guidage.According to a first embodiment, the abutment means comprise a pole having an end arranged to cooperate by sliding with the guide element and bear under the attachment means, and means for fixing the pole along the guiding element.

L'élément de guidage facilite ainsi la manipulation de la perche. Ce mode de réalisation est particulièrement simple, rapide à mettre en oeuvre et robuste.The guide element thus facilitates handling of the pole. This embodiment is particularly simple, quick to implement and robust.

De préférence, ladite extrémité de la perche est pourvue d'un étrier s'étendant autour de l'élément de guidage.Preferably, said end of the pole is provided with a stirrup extending around the guide element.

Ainsi, l'étrier guide l'extrémité de la perche qui est dès lors d'un maniement particulièrement aisé.Thus, the stirrup guides the end of the pole which is therefore particularly easy to handle.

Selon un deuxième mode de réalisation, les moyens de butée comprennent au moins une poulie montée au voisinage de la partie basse de la voie sensiblement verticale, au moins une poulie montée au voisinage de l'extrémité haute de la voie sensiblement verticale, un élément souple s'étendant en boucle autour des deux poulies, un élément support monté pour coulisser sur l'élément de guidage et relié à un brin de l'élément souple et un moyen pour bloquer l'élément souple en position lorsque l'élément support est au voisinage de l'extrémité haute de la voie sensiblement verticale.According to a second embodiment, the abutment means comprise at least one pulley mounted in the vicinity of the lower part of the substantially vertical track, at least one pulley mounted in the vicinity of the upper end of the substantially vertical track, a flexible element. extending in a loop around the two pulleys, a support element mounted to slide on the guide element and connected to a strand of the flexible element and means for locking the flexible element in position when the support element is at near the upper end of the substantially vertical path.

Ce mode de réalisation est également très simple et robuste. Il permet d'équiper des voies sensiblement verticale de plus grande largeur qu'avec le mode de réalisation précédent.This embodiment is also very simple and robust. It makes it possible to equip substantially vertical channels of greater width than with the previous embodiment.

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit de modes de réalisation particuliers non limitatifs de l'invention.Other features and benefits of the invention will emerge on reading the following description of particular non-limiting embodiments of the invention.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Il sera fait référence aux dessins annexés, parmi lesquels :

  • la figure 1 est une vue schématique partielle en perspective d'un véhicule de transport de marchandises équipé d'un dispositif de protection conforme à un premier mode de réalisation de l'invention, dans une configuration d'assurage,
  • les figures 2, 3 et 4 sont des vues partielles en perspective du dispositif de protection conforme au premier mode de réalisation de l'invention,
  • la figure 5 est une vue analogue à celle de la figure 1 de ce dispositif de protection, dans une configuration intermédiaire,
  • la figure 6 est une vue partielle en perspective de ce dispositif de protection, dans une configuration préparatoire à l'utilisation,
  • la figure 7 est une vue partielle en perspective des moyens d'accrochage,
  • la figure 8 est une vue schématique en élévation d'un dispositif de protection selon un deuxième mode de réalisation.
Reference will be made to the appended drawings, among which:
  • the figure 1 is a partial schematic perspective view of a goods transport vehicle equipped with a protection device according to a first embodiment of the invention, in a belay configuration,
  • the figures 2 , 3 and 4 are partial perspective views of the protection device according to the first embodiment of the invention,
  • the figure 5 is a view similar to that of the figure 1 of this protection device, in an intermediate configuration,
  • the figure 6 is a partial perspective view of this protection device, in a configuration preparatory to use,
  • the figure 7 is a partial perspective view of the attachment means,
  • the figure 8 is a schematic elevational view of a protection device according to a second embodiment.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence aux figures, l'invention est ici décrite en application à un véhicule 1 (tel qu'un camion, une remorque ou une semi-remorque...) qui est pourvu d'une échelle 2 permettant à un utilisateur 3 d'accéder au toit 4.With reference to the figures, the invention is here described in application to a vehicle 1 (such as a truck, a trailer or a semi-trailer ...) which is provided with a ladder 2 allowing a user 3 of access to the roof 4.

En référence aux figures et pour les deux modes de réalisation décrits, le dispositif de protection conforme à l'invention comprend une ligne fixe (ou support d'assurage flexible selon la norme EN 795) généralement désignée en 5 qui comprend un tronçon vertical 5.1 s'étendant le long de l'échelle 2 et un tronçon horizontal 5.2 s'étendant sur le toit 4.With reference to the figures and for the two embodiments described, the protection device according to the invention comprises a fixed line (or flexible anchoring support according to EN 795) generally designated 5 which comprises a vertical section 5.1 extending along the scale 2 and a horizontal section 5.2 extending on the roof 4.

La ligne fixe 5 est formée d'un câble ayant des extrémités 6 (dont une seule est visible aux figures) qui sont fixées de manière connue en soi au véhicule dë manière à maintenir la ligne fixe 5 en tension.The fixed line 5 is formed of a cable having ends 6 (only one of which is visible in the figures) which are fixed in a manner known per se to the vehicle so as to maintain the fixed line 5 in tension.

La ligne fixe est supportée à intervalle régulier par des éléments d'ancrage généralement désignés en 7, 8 comprenant chacun un tube 9, 10 qui reçoit la ligne fixe 5 et qui est relié par des doigts latéraux 11, 12 à des moyens de fixation au véhicule 1.The fixed line is supported at regular intervals by anchoring elements generally designated 7, 8 each comprising a tube 9, 10 which receives the fixed line 5 and which is connected by lateral fingers 11, 12 to fixing means to the vehicle 1.

Le tube 9 de l'élément d'ancrage 7 à une forme de crosse qui comprend une extrémité dans le prolongement du tronçon vertical 5.1 et une extrémité dans le prolongement du tronçon horizontal 5.2. Les moyens de fixation du tube 9 comprennent un collier 13 fixé à une extrémité supérieure d'un montant de l'échelle 2 et une semelle 14 vissée ou soudée sur le toit 4 du véhicule 1.The tube 9 of the anchoring element 7 has a shape of a stick which comprises an end in the extension of the vertical section 5.1 and an end in the extension of the horizontal section 5.2. The fastening means of the tube 9 comprise a collar 13 attached to an upper end of a ladder upright 2 and a flange 14 screwed or welded to the roof 4 of the vehicle 1.

Plusieurs éléments d'ancrage 8 (mais un seul est visible aux figures) sont répartis le long du tronçon horizontal 5.2. Les moyens de fixation sont des semelles 15 vissées ou soudées sur le toit 4 du véhicule 1.Several anchoring elements 8 (but only one is visible in the figures) are distributed along the horizontal section 5.2. The fixing means are flanges 15 screwed or welded to the roof 4 of the vehicle 1.

Un coulisseau généralement désigné en 16 (ou point d'ancrage mobile d'après la norme précitée) est monté pour coulisser sur la ligne fixe 5. Le coulisseau 16, connu en lui-même, comprend un corps 17 tubulaire le long duquel est ménagée une fente 18 permettant l'introduction latérale de la ligne fixe 5 dans le corps 17. Des moyens escamotables connus (non visibles sur les figures) sont prévus pour empêcher le passage de la ligne fixe 5 dans la fente 18. Un anneau 20 est solidaire du corps 17. L'anneau 20 est positionné par rapport à la fente 18 de telle manière que, lorsque l'on tire sur l'anneau 20 pour déplacer le coulisseau 16 le long de la ligne fixe 5, la fente 18 permette le passage des doigts latéraux 11, 12 (voir la figure 7).A slide generally designated 16 (or movable anchoring point according to the aforementioned standard) is mounted to slide on the fixed line 5. The slide 16, known in itself, comprises a tubular body 17 along which is provided a slot 18 allowing the lateral introduction of the fixed line 5 in the body 17. Known retractable means (not visible in the figures) are provided to prevent the passage of the fixed line 5 in the slot 18. A ring 20 is secured 17. The ring 20 is positioned with respect to the slot 18 so that, when the ring 20 is pulled to move the slide 16 along the fixed line 5, the slot 18 allows the passage of the lateral fingers 11, 12 (see figure 7 ).

On notera que l'élément d'ancrage 7 en forme de crosse assure la continuité du coulissement du coulisseau 16 entre le tronçon vertical 5.1 et le tronçon horizontal 5.2.It will be noted that the anchoring element 7 in the shape of a butt ensures the continuity of the sliding of the slider 16 between the vertical section 5.1 and the horizontal section 5.2.

Dans les deux modes de réalisation, le dispositif de protection comprend un harnais 21 destiné à être porté par l'utilisateur et équipé d'un dévidoir 22 auto-bloquant et à rappel automatique d'une sangle 23. Le dévidoir 17 est connu en lui-même. La sangle 23 est ici associée à un absorbeur d'énergie et a une extrémité libre pourvue d'un mousqueton 24 permettant d'accrocher la sangle 23 au coulisseau 16 et donc à la ligne fixe 5.In both embodiments, the protective device comprises a harness 21 intended to be worn by the user and equipped with a self-locking reel 22 and automatic return of a strap 23. The reel 17 is known in him -even. The strap 23 is here associated with an energy absorber and has a free end provided with a carabiner 24 for attaching the strap 23 to the slider 16 and thus to the fixed line 5.

Le dispositif de protection comprend des moyens de butée qui sont déplaçables le long du tronçon vertical 5.1 entre la partie basse et l'extrémité haute de l'échelle 2 et immobilisables au voisinage de l'extrémité haute de l'échelle 2.The protective device comprises abutment means which are displaceable along the vertical section 5.1 between the lower part and the upper end of the scale 2 and can be immobilized in the vicinity of the upper end of the scale 2.

En référence plus particulièrement aux figures 1 à 6 et conformément au premier mode de réalisation, ces moyens de butée comprennent une perche 25 tubulaire ayant des extrémités 26, 27 agencées pour recevoir de manière amovible des pions 28, 29 solidaires du véhicule 1 de telle manière qu'une fois reçue entre les pions 28, 29 la perche 25 s'étende parallèlement au tronçon vertical 5.1 de la ligne fixe 5. Les extrémités 26, 27 et / ou les pions 28, 29 peuvent être gainés d'un matériau amortisseur de vibrations.With particular reference to Figures 1 to 6 and according to the first embodiment, these abutment means comprise a tubular pole 25 having ends 26, 27 arranged to removably receive pins 28, 29 secured to the vehicle 1 so that once received between the pins 28 , The boom 25 extends parallel to the vertical section 5.1 of the fixed line 5. The ends 26, 27 and / or the pins 28, 29 may be sheathed with a vibration-damping material.

L'extrémité 26 est pourvue d'un étrier 30 dans lequel passe le tronçon vertical 5.1.The end 26 is provided with a stirrup 30 in which the vertical section 5.1 passes.

L'extrémité 27 et le pion correspondant 29 sont percés transversalement pour recevoir une goupille 31 pour rendre la perche 25 solidaire du véhicule en s'opposant à son dégagement des pions 28, 29.The end 27 and the corresponding pin 29 are pierced transversely to receive a pin 31 to make the pole 25 integral with the vehicle by opposing its release pins 28, 29.

Pour s'accrocher à la ligne fixe 5, l'utilisateur 3 ôte la goupille 31 et déboîte la perche 25 d'entre les pions 28, 29 pour amener l'extrémité 26 dans la partie inférieure de l'échelle 2 (voir figure 6).To cling to the fixed line 5, the user 3 removes the pin 31 and disengages the pole 25 from the pins 28, 29 to bring the end 26 into the lower part of the scale 2 (see figure 6 ).

Le coulisseau 16 étant monté au-dessus de l'étrier 30, l'utilisateur accroche le mousqueton 24 à l'anneau 20 puis manipule la perche pour l'engager à nouveau entre les pions 28, 29 avant de remettre la goupille 31 (voir les figures 5 puis 1 et 3). Le tronçon vertical 5.1 guide le coulisseau 16 et l'extrémité 26 de la perche 25, ce qui facilite sa manipulation.The slide 16 being mounted above the stirrup 30, the user hooks the carabiner 24 to the ring 20 then manipulates the pole to engage it again between the pins 28, 29 before putting the pin 31 (see the figures 5 then 1 and 3). The vertical section 5.1 guides the slide 16 and the end 26 of the pole 25, which facilitates its handling.

L'étrier 30 et le coulisseau 16 sont alors adjacents à l'extrémité supérieure de l'échelle 2 (figure 2) et l'étrier 30, maintenu en position par la perche 25 immobilisée par les pions 28, 29, forme une butée s'opposant à tout mouvement de descente du coulisseau 16. Ainsi, l'étrier 30 et la perche 25, en bloquant le coulisseau 16, stoppe la chute d'un utilisateur qui serait tombé de l'échelle.The stirrup 30 and the slide 16 are then adjacent to the upper end of the ladder 2 ( figure 2 ) and the stirrup 30, held in position by the pole 25 immobilized by the pins 28, 29, forms a stop opposing any downward movement of the slide 16. Thus, the stirrup 30 and the boom 25, by blocking the slider 16 stops the fall of a user who has fallen from the ladder.

L'utilisateur peut alors monter sur l'échelle 2 tout en étant assuré puis accéder au toit 4.The user can then climb the ladder 2 while being insured and then access the roof 4.

Il suffit à l'utilisateur 3 d'effectuer les opérations inverses pour se décrocher de la ligne fixe 5 une fois qu'il est revenu au sol.It is sufficient for the user 3 to perform the reverse operations to get off the landline 5 once he has returned to the ground.

En référence à la figure 8 et conformément au deuxième mode de réalisation, les moyens de butée comprennent une paire de poulies 40 montée sur le véhicule 1 au voisinage de la partie basse de l'échelle 2 et une paire de poulies 41 montée au voisinage de l'extrémité haute de l'échelle 2.With reference to the figure 8 and in accordance with the second embodiment, the abutment means comprise a pair of pulleys 40 mounted on the vehicle 1 in the vicinity of the lower part of the ladder 2 and a pair of pulleys 41 mounted in the vicinity of the upper end of the scale 2.

Un câble 42 s'étend en boucle autour des poulies 40, 41 de manière à comporter un brin 42.1 parallèle et adjacent au tronçon vertical 5.1.A cable 42 extends in a loop around the pulleys 40, 41 so as to include a strand 42.1 parallel to and adjacent to the vertical section 5.1.

Un anneau 43 est fixé à ce brin 42.1 du câble 42 et est monté pour coulisser sur le tronçon vertical 5.1. Le coulisseau 16 est monté au dessus de l'anneau 43.A ring 43 is fixed to this strand 42.1 of the cable 42 and is mounted to slide on the vertical section 5.1. The slider 16 is mounted above the ring 43.

On comprend que le déplacement du câble 42 autour des poulies 40, 41 permet d'amener l'anneau 43 et donc le coulisseau 16 dans une position basse permettant l'accrochage de la sangle et une position haute permettant l'assurage.It is understood that the movement of the cable 42 around the pulleys 40, 41 makes it possible to bring the ring 43 and thus the slide 16 into a low position allowing the attachment of the strap and a high position allowing belaying.

Une extrémité d'un câble de blocage 44 est fixée au brin 42.2 du câble 42. Le câble de blocage 44 a une extrémité opposée qui peut être accrochée au véhicule 1 du côté de la paire de poulies 40 pour immobiliser l'anneau 43 au voisinage de l'extrémité supérieure de l'échelle 2 (comme représenté à la figure 8).One end of a locking cable 44 is attached to the strand 42.2 of the cable 42. The locking cable 44 has an opposite end which can be hooked to the vehicle 1 on the side of the pair of pulleys 40 to immobilize the ring 43 in the vicinity from the upper end of the scale 2 (as shown in figure 8 ).

On notera que le câble 42 est ici réalisé en deux parties reliées par des anneaux auxquels sont accrochés l'anneau 43 et le câble 44.Note that the cable 42 is here made in two parts connected by rings to which are attached the ring 43 and the cable 44.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the embodiments described and variants can be made without departing from the scope of the invention as defined by the claims.

En particulier, l'invention est utilisable en association avec de nombreux moyens de transport et notamment terrestre comme les véhicules citernes, ferroviaire comme les wagons, fluvial ou maritime pour l'accès aux cales des bateaux, ou avec des structures mobiles utilisées dans le transport ou la manutention comme des conteneurs ou des ponts roulants. L'invention est également utilisable avec des structures fixes telles que des bâtiments, des portiques...In particular, the invention can be used in association with many means of transport and in particular terrestrial such as tank vehicles, railway as the wagons, river or sea for access to the holds of boats, or with mobile structures used in transport or handling like containers or overhead cranes. The invention can also be used with fixed structures such as buildings, gantries ...

De plus, un rail d'assurage peut être utilisé aux lieu et place de tout ou partie du câble formant dans les modes de réalisation décrits la ligne fixe 5. Selon les applications, la ligne fixe 5 peut ne s'étendre que le long de l'échelle 2 ou comprendre plusieurs tronçons verticaux et / ou horizontaux. Le tronçon horizontal de la ligne fixe peut suivre ou précéder le tronçon vertical.In addition, a belay rail may be used instead of all or part of the cable forming in the embodiments described the fixed line 5. Depending on the applications, the fixed line 5 may extend only along scale 2 or include several vertical and / or horizontal sections. The horizontal section of the fixed line may follow or precede the vertical section.

L'élément de guidage peut être réalisé sous la forme d'une tige. Ce mode de réalisation est utilisable sur un véhicule pourvu d'au moins une porte, la tige étant montée à côté de l'échelle sur la porte pour avoir une extrémité supérieure au voisinage et dans le prolongement de la crosse lorsque la porte est fermée.The guide element may be in the form of a rod. This embodiment can be used on a vehicle provided with at least one door, the rod being mounted next to the ladder on the door to have an upper end near and in the extension of the stick when the door is closed.

L'élément d'ancrage intermédiaire 7 peut être réalisé au moyen d'une goulotte conformée en crosse pour recevoir le câble formant la ligne fixe 5. Lorsqu'il n'est pas prévu d'autre élément d'ancrage intermédiaire, la sangle peut alors être accrochée à la ligne fixe 5 directement par le mousqueton qui peut être glissé entre la goulotte et le câble pour passer l'élément d'ancrage intermédiaire 7.The intermediate anchoring element 7 may be produced by means of a chute shaped as a hook to receive the cable forming the fixed line 5. When no other intermediate anchoring element is provided, the strap may then be hooked to the fixed line 5 directly by the carabiner which can be slid between the chute and the cable to pass the intermediate anchoring element 7.

Bien que les moyens d'accrochage aient été représentés sous la forme d'un coulisseau auquel la sangle est accrochée par un mousqueton, d'autres moyens d'accrochage peuvent être utilisés comme un mousqueton directement accroché à la ligne fixe lorsque la ligne fixe n'est pas associée à des éléments d'ancrage intermédiaires.Although the attachment means have been shown in the form of a slider to which the strap is hooked by a carabiner, other attachment means can be used as a carabiner directly hooked to the fixed line when the fixed line n is not associated with intermediate anchors.

Claims (8)

  1. A device for the protection of a user in the event of a fall from a substantially vertical path (2), comprising a harness (21) fitted with a self-blocking winder (22) with a device for the automatic return of a strap (23) with one free end fitted with a means of hooking (24, 16) to a guiding part (5.1) extending alongside the substantially vertical path between a lower portion and a top end of the latter, characterised in that the device comprises means of stopping (25, 30; 40, 41, 42, 43, 44) the hooking means, the stop means being movable alongside the guiding part between the lower portion and the top end of the substantially vertical path and immobilisable proximate to the top end of the substantially vertical path.
  2. The device according to Claim 1, characterised in that the stop means comprise a bar (25) with one end (26) arranged to co-operate by sliding with the guiding parts (5) and to abut under the hooking means (16), and means of attaching (28, 29) the bar alongside the guiding part.
  3. The device according to Claim 2, characterised in that said end (26) of the bar (25) is fitted with a stirrup (30) extending around the guiding part (5).
  4. The device according to Claim 1, characterised in that the means comprise at least one pulley (40) mounted proximate to the lower portion of the substantially vertical path (2), a least one pulley (41) mounted proximate to the top end of the substantially vertical path, a flexible part (42) extending in a loop around the two pulleys, the support part (43) mounted to slide on the guiding part (5) and connected to a strand (42.1) of the flexible part and means (44) to block the flexible part in position when the support part is proximate to the top end of the substantially vertical path.
  5. The device according to Claim 4, characterised in that the means of blocking the flexible part (42) comprises a link device (44) with one end arranged to be attached to the flexible part and an opposite end integrally formed with a point that is fixed in relation to the flexible part.
  6. The device according to Claim 1, the substantially vertical path (2) being mounted onto which a substantially horizontal safety line is mounted and intended to slidably accommodate the means of hooking (16) the free end of the strap (23), characterised in that the device comprises means (7) to ensure a continuity of the sliding movement of the hooking means between the guiding part (5.1) and the safety line (5.2).
  7. The device according to Claim 6, characterised in that the means (7) to ensure the continuity comprise a crook (9) with one end extending along the extension of the guiding part (5.1) and an opposite end extending along the extension of the safety line (5.2).
  8. The device according to Claim 1, characterised in that the hooking means comprises a snap-hook (24) integrally formed with the free end of the strap (23) and a slider (16) mounted onto the guiding part (5.1) and fitted with a ring (20) to co-operate with the snap-hook.
EP04742702A 2003-05-20 2004-05-11 Device for protecting a user in the event of a fall from an essentially-vertical path Expired - Lifetime EP1651314B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0306019A FR2855062B1 (en) 2003-05-20 2003-05-20 DEVICE FOR PROTECTING A USER IN THE EVENT OF FALLING FROM A SUBSTANTIALLY VERTICAL WAY
PCT/FR2004/001146 WO2004103473A1 (en) 2003-05-20 2004-05-11 Device for protecting a user in the event of a fall from an essentially-vertical path

Publications (2)

Publication Number Publication Date
EP1651314A1 EP1651314A1 (en) 2006-05-03
EP1651314B1 true EP1651314B1 (en) 2008-07-16

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Application Number Title Priority Date Filing Date
EP04742702A Expired - Lifetime EP1651314B1 (en) 2003-05-20 2004-05-11 Device for protecting a user in the event of a fall from an essentially-vertical path

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EP (1) EP1651314B1 (en)
AT (1) ATE401109T1 (en)
DE (1) DE602004015112D1 (en)
FR (1) FR2855062B1 (en)
WO (1) WO2004103473A1 (en)

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US8240431B2 (en) 2006-06-16 2012-08-14 Brent Smith Apparatus for arresting a fall
US8627923B2 (en) 2010-01-15 2014-01-14 Garlock Safety Systems Inc. Tank lifeline system
US8584798B2 (en) 2010-06-10 2013-11-19 Garlock Safety Systems Inc. Safety apparatus for arresting a fall of a worker
GB2512064B (en) 2013-03-18 2018-05-23 Latchways Plc Tether System for a Safety Line
US20160144207A1 (en) * 2014-11-25 2016-05-26 Western Technology Services International, Inc. Water tank fall arrest and rescue apparatus
CN105413083A (en) * 2015-12-10 2016-03-23 佛山高富中石油燃料沥青有限责任公司 Safe suspension device for oil tank truck during operation
CA3078554A1 (en) * 2017-10-13 2019-04-18 Northern Strands Co. Ltd. Fall arrest system
IT201800004272A1 (en) * 2018-04-06 2019-10-06 ANTI-FALL SYSTEM AND METHOD
CN110465015B (en) * 2019-08-08 2021-12-31 重庆市发成科技开发有限公司 Safety hook capable of being automatically taken off to ground

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US4085818A (en) * 1976-05-20 1978-04-25 Swager William E Plastic ladder and safety device
FR2448355A1 (en) * 1979-02-09 1980-09-05 Gle Installations Ele Entrepri Earthing device for overheated HV support - prevents worker falling by attaching him to cable hooked over support
US4877110A (en) * 1988-10-14 1989-10-31 D B Industries, Inc. Safety device with retractable lifeline
NZ243635A (en) * 1992-07-20 1996-02-27 Multi Storey Emergency Exits L Emergency escape structure with stabilised conveyor ladder for use beside tall buildings
US6491135B2 (en) * 2001-04-11 2002-12-10 Protecta International, Inc. Portable anchorage point assembly

Also Published As

Publication number Publication date
EP1651314A1 (en) 2006-05-03
WO2004103473A1 (en) 2004-12-02
ATE401109T1 (en) 2008-08-15
FR2855062A1 (en) 2004-11-26
FR2855062B1 (en) 2005-06-24
DE602004015112D1 (en) 2008-08-28

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