EP3699361A1 - Retaining system with rod with removable fall-prevention winder-unwinder for access shaft - Google Patents
Retaining system with rod with removable fall-prevention winder-unwinder for access shaft Download PDFInfo
- Publication number
- EP3699361A1 EP3699361A1 EP20159056.9A EP20159056A EP3699361A1 EP 3699361 A1 EP3699361 A1 EP 3699361A1 EP 20159056 A EP20159056 A EP 20159056A EP 3699361 A1 EP3699361 A1 EP 3699361A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod
- cable
- unwinder
- manhole
- fall
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 claims abstract description 34
- 238000004873 anchoring Methods 0.000 claims abstract description 20
- 230000002265 prevention Effects 0.000 claims description 10
- 230000000670 limiting effect Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 2
- 230000036515 potency Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/127—Manhole shafts; Other inspection or access chambers; Accessories therefor with devices for impeding fall or injuries of persons
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
- E06C9/04—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted in the form of climbing irons or the like
Definitions
- the present invention relates generally to the field of security equipment. It relates more particularly to a restraint system for access to a well through a manhole and comprising a removable fall-prevention reel-unwinder rod.
- Sewer canes have been known for a long time. They allow workers having to descend into a well by passing through a manhole to be able to restrain themselves at the start of their descent.
- These rods are metal rods which can be inserted into a base permanently installed in the well and for example in a part of ladder rungs installed along the well. The operators must therefore be able to grip the rod when they start to descend, which can sometimes be random, for example because of oil or grease on the rod or a false movement.
- the rest of the descent must be done by holding on to the bars and with even greater risks due to the fact that the bars may have been soiled by the boots of previous participants.
- interventions in the shafts are generally made by several actors and if the one who goes down or up can be attached by the cable of the fall arrest reel-unwinder, this is not the case for the others who are on the surface. , at the edge of the manhole.
- the invention relates to a person restraint system for a downhill access shaft accessible from above through a manhole, the system comprising a removable retaining rod and a rod installation base, the rod being elongated longitudinally between two ends, a lower end adapted to be removably mounted on the base and an upper end provided with an anchoring member, the installation base being fixed to a wall of the well, the system being configured so that, when the rod is installed in the installation base, the rod is erected upwards and the upper end of the rod is at a determined height above the level of the manhole, system comprising a cable winching apparatus, the free end of the cable comprising an attachment device, said winching apparatus being carried by a rod attached in a removable manner to the upper end of the rod.
- the system is more precisely configured according to claim 1.
- the bracket which fits into the longitudinal groove of the rod ensures keying during assembly of the system and also prevents any rotation of the rod relative to the rod.
- the anchoring points of the anchoring member cannot be positioned on the side of the manhole and cannot pivot at the risk of coming into contact with each other. screw the opening of the manhole both when installing the rod in the installation base and when using the rod.
- the handling of the reel-unwinder, in particular of its crank, is carried out at a distance from the manhole and the rod separates the worker (s) from the manhole, unlike conventional installations and in particular tripods.
- the rod is locked automatically in the installation base by a spring lock system and it can only be unlocked from the installation base by voluntary action.
- the operations of anchoring to the rod and attaching to the cable are done in complete safety opposite the manhole.
- the anti-fall reel-unwinder on its rod and the rod are equipped with an automatic locking system, the installation of the rod in the rod ending with an automatic locking.
- the installation base can be used as an anchor point when the rod is not installed in said base.
- the system of the invention is intended in particular to secure access downhill through a manhole 2 in a well.
- this well is equipped with ladder rungs 23 on which the workers can rest and hold back during the descent.
- the well is equipped with a base 20 for installing a cane which is fixed to the wall of the well by pinned screws, typically M12 screws.
- This base 20 comprises two hoops 21 stepped and aligned and inside which the lower end 15 of a rod 1 can be lowered by sliding. These hoops 21, a lower hoop and an upper hoop, are adjusted to the outer shape of the lower end 15 of the rod 1 in order to avoid too much rotation or play causing significant lateral instability of the upper end of the rod. the rod once it is installed in the base 20.
- the lower end 15 of the rod has at least one tab 14 intended to come up against the upper hoop 21 in order to form an installation stop during the descent of the cane in the hoops 21.
- an unlockable locking means is implemented between the lower end of the rod and the base 20 in order to prevent any untimely removal of the rod 1 from the base 20.
- Such an unlockable locking means is represented on the figures 5 and 5a where the lower end 15 of the rod comprises a retractable tab 17 under the action of the traction of a cord or cable 19 accessible higher up along the rod 1 at the level of a loop 18.
- a spring held in position locking tab 17 and figure 5a it can be seen that the tab will come to block against the base 20 if the rod 1 is pulled upwards, except to have actuated the loop 18 so that the tab does not abut against the base.
- the rod 1 is a metal section 10 therefore comprising a lower end 15 and an upper end 16. At least the upper end 16 of the section 10 is hollow. Preferably, the section 10 of the rod is hollow over its entire height.
- the section 10 generally has four faces: a face on the manhole side, a face opposite to the previous one and therefore opposite the manhole and two right and left side faces.
- interveners before anchoring to a fixed point can do so on the two anchoring points 11 and 12 of the anchoring member without having to be positioned on the side of the manhole to reach these anchoring points.
- the anchoring points 11 and 12 of the rod are located opposite the manhole in order to guarantee the safe anchoring of the interveners, in particular a rescuer and an operator having access to the hole.
- the upper end 16 of the profile 10 is open 13 upwards and one can see on the figure 2 that a rod 30 of a retaining means 3 with a reel-unwinder 31 cable fall arrest device 34 can be slid into this upper end 16.
- the shape of this rod 30 is adapted to the internal shape of the upper end 16 of the section 10 in order to avoid rotation or lateral play causing lateral instability of the rod in the rod.
- the rod 30 comprises a stop means limiting the descent of the rod 30 in the upper end 16 of the profile 10, said stop means being in this example two blind slots 38 in which the wall of the profile can slide up to at the bottom of the slots.
- the rod 30 of the retaining means 3 with reel-unwinder 31 cable fall arrest device is a metal profile of H or U section.
- the rod comprises a locking means 40 allowing it to be locked in the rod, for example of the push-button type which retracts when the rod 30 is lowered into the rod 1 and which passes through a corresponding hole and adjusted in the rod once. the rod in place at the correct height. To be able to remove the rod 30, it will be necessary to press the button.
- a locking means 40 allowing it to be locked in the rod, for example of the push-button type which retracts when the rod 30 is lowered into the rod 1 and which passes through a corresponding hole and adjusted in the rod once. the rod in place at the correct height. To be able to remove the rod 30, it will be necessary to press the button.
- the rod 30 can comprise any type of useful winching device, such as the retaining means 3 with the reel-unwinder 31 fall arrest device shown in the figures. figures 2 to 4 and 6 to 9 .
- This cable fall-prevention reel-unwinder 31 allows a person attached to the cable 34 to move but, in the event of a fall, to block the cable and therefore to block the fall of the person.
- Another type of apparatus for winching on such a rod 30 may be a manual winch 50 as shown in FIGS. figures 10 to 13 and which can be useful for lifting loads.
- This winching device can be a motorized winch in other implementation methods. It is therefore possible with the same rod 1 to have several functions depending on the rod with the winching device installed. Operators and / or rescuers can remain hooked securely to the anchor points 11 and 12 of the anchor member when changing the rod to the winching device.
- a fall-prevention reel-unwinder 31 is attached laterally to the rod 30 via, towards the bottom of the reel-unwinder 31, a bracket 32 and, towards the top of the rewinder-unwinder 31, a tab 33.
- the bracket 32 and the tab 33 extend laterally to the rod 30 and that the latter is slipped into the upper end of the profile 10, the section 10 has a longitudinal, vertical groove in which the stem can descend when the rod is lowered slid inside the upper end 16 of the rod 1.
- the groove in question can also, or alternatively slots 38, serve as a stop for the descent of the rod 30 into the upper end of the rod, the bracket 32 coming up against the bottom of said groove.
- the rod 30 is installed in the rod so that the reel-unwinder 31 is on the side of the rod which is opposite the manhole 2, a keying system between the rod 30 and the rod 1 being able to impose this condition of installation.
- the exit of the cable 34 of the reel-unwinder 31 is oriented upwards, side of the tab 33 and a return means of the cable 34 in the type of pulley 36 of return is installed at the upper end of the rod 30, the cable descending on the side opposite to the reel-unwinder relative to the rod 30 and therefore of the rod 1 to return the cable to the side and towards the manhole 2.
- the free end of the cable 34 comprises a fall damping device 35 and an attachment device 39 comprising a carabiner so that a worker can attach to it, preferably by a safety harness that he is wearing.
- a pin 37 is installed just above the pulley 36. This pin 37 is removable by removing the pin to allow removal of the cable 34 if necessary, especially if you want to be able to handle the end of the cable without having to get too close to the manhole.
- the hoisting means 5 is here a manual winch 50.
- the manual winch is fixed laterally to the rod 30 by means of a plate 51.
- This manual winch comprises a drum 52 around which the cable 34 is wound and unwinds.
- the drum 52 can be driven in rotation by a crank 53.
- the winch comprises a gearbox and, possibly, a controllable non-return ratchet system.
- a system has been presented in which the retaining means 3 with reel-unwinder 31 fall arrest cable 34 with its rod 30 is removable from the rod and the rod is removable from the base 20 of rod installation, the rod and the rod with the reel-unwinder can be taken for use in another place, only the base remaining permanently in the well.
- provision is made for the base and also the rod to remain permanently in the well, only the retaining means 3 with the reel-unwinder and its rod being removable and transportable to another place of use.
- the rod can be lowered well below its position of use shown in the figures in order to store it and that its upper end 16 is thus lowered below the level of the ground to be able to close the manhole.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Load-Engaging Elements For Cranes (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
L'invention concerne un système de retenue de personnes pour puits d'accès en descente accessible depuis le haut par un trou d'homme (2), le système comportant une canne (1) de retenue amovible et une embase (20) d'installation de canne, la canne (1) étant allongée longitudinalement entre deux extrémités, une extrémité inférieure (15) et une extrémité supérieure (16), l'extrémité supérieure (16) de la canne (1) comportant un organe d'ancrage (11, 12), l'embase (20) d'installation étant fixée à une paroi du puits, l'extrémité inférieure (15) de la canne pouvant être immobilisée d'une manière amovible dans l'embase (20) d'installation, le système étant configuré pour que, lorsque la canne (1) est immobilisée dans l'embase (20) d'installation, la canne (1) soit érigée vers le haut et l'extrémité supérieure (16) de la canne soit à une hauteur déterminée au-dessus du niveau du trou d'homme (2). Selon l'invention, le système comporte un appareil de treuillage (31, 50) à câble (34), l'extrémité libre du câble (34) comportant un dispositif d'attache (39), ledit appareil de treuillage (31, 50) étant porté par une tige (30) fixée d'une manière amovible à l'extrémité supérieure (16) de la canne (1). L'appareil de treuillage peut être un enrouleur-dérouleur (31) antichute ou un treuil manuel (50).The invention relates to a person restraint system for a downhill access shaft accessible from above through a manhole (2), the system comprising a removable restraint rod (1) and a base (20) for rod installation, the rod (1) being elongated longitudinally between two ends, a lower end (15) and an upper end (16), the upper end (16) of the rod (1) comprising an anchoring member ( 11, 12), the installation base (20) being fixed to a wall of the well, the lower end (15) of the rod being able to be detachably immobilized in the installation base (20) , the system being configured so that, when the rod (1) is immobilized in the installation base (20), the rod (1) is erected upwards and the upper end (16) of the rod is at a determined height above the level of the manhole (2). According to the invention, the system comprises a winching device (31, 50) with a cable (34), the free end of the cable (34) comprising an attachment device (39), said winching device (31, 50 ) being carried by a rod (30) removably attached to the upper end (16) of the rod (1). The winching apparatus may be a fall-prevention reel-unwinder (31) or a manual winch (50).
Description
La présente invention concerne de manière générale le domaine des équipements de sécurité. Elle concerne plus particulièrement un système de retenue pour accès à un puits par un trou d'homme et comportant une canne à enrouleur-dérouleur antichute amovible.The present invention relates generally to the field of security equipment. It relates more particularly to a restraint system for access to a well through a manhole and comprising a removable fall-prevention reel-unwinder rod.
Les cannes d'égoutiers sont connues de longue date. Elles permettent à des intervenants devant descendre dans un puits en passant par un trou d'homme de pouvoir se retenir au début de leur descente. Ces cannes sont des tiges métalliques qui peuvent être insérées dans une embase installée à demeure dans le puits et par exemple dans une partie de barreaux d'échelles installés le long du puits. Les intervenants doivent donc pouvoir s'agripper à la tige lors du début de leur descente, ce qui peut être parfois aléatoire à cause par exemple d'huile ou de graisse sur la tige ou d'un faux mouvement. En outre, lorsque le puits est profond, la suite de la descente doit se faire en se retenant aux barreaux et avec des risques encore accrus du fait que les barreaux ont pu être souillés par les bottes de précédents intervenants. On a donc proposé que les intervenants devant descendre soient retenues par un câble qui permettrait d'arrêter une chute au cas où l'intervenant glisserait ou perdrait l'équilibre. On a donc proposé, comme par exemple dans
On connait aussi le document
Il est donc souhaitable de disposer de moyens permettant d'assurer la sécurité des intervenants devant descendre dans un puits ou même restant à la surface pour assurer une surveillance de ce puits ou, encore, pour une opération de sauvetage.It is therefore desirable to have means making it possible to ensure the safety of the workers having to descend into a well or even remain on the surface to ensure surveillance of this well or, even, for a rescue operation.
Ce but est atteint avec l'invention qui propose un système de retenue pour accès à un puits par un trou d'homme mettant en œuvre une canne comme dans les systèmes classiques mais qui utilise des moyens permettant d'assurer la sécurité des intervenants et proposant notamment des points d'ancrage et un câble de sécurité antichute d'un enrouleur-dérouleur antichute.This object is achieved with the invention which proposes a retaining system for access to a well through a manhole using a rod as in conventional systems but which uses means making it possible to ensure the safety of workers and proposing including anchor points and a fall prevention safety cable from a fall prevention reel-unwinder.
A cette fin, l'invention concerne un système de retenue de personnes pour puits d'accès en descente accessible depuis le haut par un trou d'homme, le système comportant une canne de retenue amovible et une embase d'installation de canne, la canne étant allongée longitudinalement entre deux extrémités dont une extrémité inférieure adaptée à être montée de façon amovible sur l'embase et une extrémité supérieure pourvue d'un organe d'ancrage, l'embase d'installation étant fixée à une paroi du puits, le système étant configuré pour que, lorsque la canne est installée dans l'embase d'installation, la canne soit érigée vers le haut et l'extrémité supérieure de la canne soit à une hauteur déterminée au-dessus du niveau du trou d'homme, système comportant un appareil de treuillage à câble, l'extrémité libre du câble comportant un dispositif d'attache, ledit appareil de treuillage étant porté par une tige fixée d'une manière amovible à l'extrémité supérieure de la canne.To this end, the invention relates to a person restraint system for a downhill access shaft accessible from above through a manhole, the system comprising a removable retaining rod and a rod installation base, the rod being elongated longitudinally between two ends, a lower end adapted to be removably mounted on the base and an upper end provided with an anchoring member, the installation base being fixed to a wall of the well, the system being configured so that, when the rod is installed in the installation base, the rod is erected upwards and the upper end of the rod is at a determined height above the level of the manhole, system comprising a cable winching apparatus, the free end of the cable comprising an attachment device, said winching apparatus being carried by a rod attached in a removable manner to the upper end of the rod.
Le système est plus précisément configuré selon la revendication 1. En particulier, la potence qui s'insère dans la gorge longitudinale de la canne assure un détrompage lors du montage du système et empêche aussi toute rotation de la tige par rapport à la canne.The system is more precisely configured according to
D'autres caractéristiques non limitatives et avantageuses de l'invention, prises individuellement ou selon toutes les combinaisons techniquement possibles, sont les suivantes :
- l'appareil de treuillage est un enrouleur-dérouleur antichute,
- l'appareil de treuillage est un treuil manuel,
- l'appareil de treuillage est un treuil motorisé,
- lorsque la canne est érigée vers le haut, elle est érigée sensiblement verticalement,
- la canne est un profilé métallique,
- la tige peut être descendue par coulissement à l'intérieur de l'extrémité supérieure de la canne,
- la tige comporte un moyen de butée limitant la descente de la tige dans l'extrémité supérieure de la canne,
- la canne comporte un moyen de butée limitant la descente de la tige dans l'extrémité supérieure de la canne,
- le profilé de la canne présente une section de forme interne correspondante à la forme externe de la section de la tige au moins dans la zone où la tige peut coulisser à l'intérieur de l'extrémité supérieure de la canne,
- l'appareil de treuillage est un enrouleur-dérouleur antichute qui comporte une sortie de câble et un point de fixation à la tige, le point de fixation étant opposé à la sortie de câble et lorsque la tige est fixée à l'extrémité supérieure de la canne, le point de fixation est à une hauteur inférieure à la hauteur de la sortie de câble, le câble sortant de la sortie de câble ayant un trajet montant et étant renvoyé vers le bas par un dispositif de renvoi disposé à l'extrémité supérieure de la tige,
- le dispositif de renvoi est une poulie,
- l'enrouleur-dérouleur antichute est fixé latéralement à la tige, le point de fixation de l'enrouleur-dérouleur antichute étant relié à la tige par une potence et l'extrémité supérieure de la canne comporte une gorge longitudinale dans laquelle la potence peut descendre lorsque la tige est descendue coulissée à l'intérieur de l'extrémité supérieure de la canne,
- l'enrouleur-dérouleur antichute est positionné sur un côté de la canne, côté opposé au trou d'homme,
- la face opposée au trou d'homme de l'extrémité supérieure de la canne comporte une gorge longitudinale (= dans le sens de la hauteur) dans laquelle la potence peut descendre lorsque la tige est descendue coulissée à l'intérieur de l'extrémité supérieure de la canne, afin que l'enrouleur-dérouleur antichute soit disposé côté opposé au trou d'homme par rapport à la canne,
- l'enrouleur-dérouleur antichute comporte en outre côté sortie de câble un moyen de retenue à la tige, l'enrouleur-dérouleur antichute étant fixé à la tige du côté de son point de fixation et du côté de sa sortie de câble,
- le moyen de retenue à la tige est une patte,
- l'enrouleur-dérouleur antichute est fixé à la tige côté de sa sortie de câble par une patte,
- la tige et l'extrémité supérieure de la canne comportent des moyens de verrouillage amovibles complémentaires permettant de bloquer la tige dans l'extrémité supérieure de la canne,
- les moyens de verrouillage amovibles complémentaires permettant de bloquer la tige dans l'extrémité supérieure de la canne sont un verrou à ressort,
- l'enrouleur-dérouleur antichute répond aux normes EN360 et EN1496,
- l'enrouleur-dérouleur antichute est à rappel automatique,
- l'enrouleur-dérouleur antichute est à rappel manuel,
- l'enrouleur-dérouleur antichute est à rappel manuel et comporte une manivelle pour enroulement de rappel,
- le système et son enrouleur-dérouleur antichute sont prévu pour une charge maximale d'utilisation de 150kg,
- l'embase d'installation comporte au moins deux arceaux étagés et alignés et à l'intérieur desquels l'extrémité inférieure de la canne peut être descendue par coulissement et la canne comporte au moins une patte destinée à venir butter contre l'arceau supérieur afin de former une butée d'installation,
- l'embase d'installation et l'extrémité inférieure de la canne comportent des moyens de verrouillage amovibles complémentaires permettant de bloquer l'extrémité inférieure de la canne dans l'embase d'installation,
- le profilé de la canne présente une section ouverte sur sa hauteur,
- le profilé de la canne présente une section fermée sur au moins une partie de sa hauteur,
- la canne est un profilé de section triangulaire,
- la canne est un profilé de section carrée,
- la canne est un profilé de section rectangulaire,
- la canne est un profilé de section polygonale,
- la tige est un profilé de section triangulaire,
- la tige est un profilé de section carrée,
- la tige est un profilé de section rectangulaire,
- la tige est un profilé de section polygonale,
- la tige est un profilé de section en H ou en U,
- la canne comporte une face orientée vers le trou d'homme et l'extrémité supérieure de la canne comporte un organe d'ancrage constitué de deux points d'ancrage rigides, lesdits deux points d'ancrages étant disposés à l'opposé de la face de la canne orientée vers le trou d'homme,
- les points d'ancrage de la canne se situent au-dessus de l'enrouleur/dérouleur antichute lorsque la tige est installée à l'extrémité supérieure de la canne,
- le système à organe d'ancrage répond aux normes EN795-A2012 et TS16415,
- le système à organe d'ancrage permet l'ancrage de deux personnes pour justifier une personne de 150kg.
- the winching device is a fall-prevention reel-unwinder,
- the winching device is a manual winch,
- the winching device is a motorized winch,
- when the cane is erected upwards, it is erected substantially vertically,
- the rod is a metal profile,
- the rod can be lowered by sliding inside the upper end of the rod,
- the rod comprises a stop means limiting the descent of the rod into the upper end of the rod,
- the rod comprises a stop means limiting the descent of the rod into the upper end of the rod,
- the profile of the rod has an internal shaped section corresponding to the external shape of the section of the rod at least in the zone where the rod can slide inside the upper end of the rod,
- the winching device is a fall-prevention reel-unwinder which has a cable outlet and a point of attachment to the rod, the attachment point being opposite the cable outlet and when the rod is attached to the upper end of the rod, the attachment point is at a height lower than the height of the cable outlet, the cable exiting the cable outlet having an upward path and being returned downwards by a return device arranged at the upper end of the rod. the rod,
- the return device is a pulley,
- the fall prevention reel-unwinder is attached laterally to the rod, the attachment point of the fall prevention reel-unwinder being connected to the rod by a bracket and the upper end of the rod has a longitudinal groove into which the bracket can descend when the rod is lowered slid inside the upper end of the rod,
- the fall prevention reel-unwinder is positioned on one side of the rod, opposite the manhole,
- the face opposite the manhole of the upper end of the rod has a longitudinal groove (= in the direction of the height) in which the stem can descend when the rod is lowered slid inside the upper end of the rod, so that the fall prevention reel-unwinder is placed on the opposite side of the manhole in relation to the rod,
- the fall-prevention reel-unwinder further comprises on the cable outlet side a means for retaining the rod, the fall-prevention reel-unwinder being fixed to the rod on the side of its fixing point and on the side of its cable outlet,
- the means of retaining the rod is a tab,
- the fall-prevention reel-unwinder is attached to the rod on the side of its cable outlet by a tab,
- the rod and the upper end of the rod comprise additional removable locking means making it possible to block the rod in the upper end of the rod,
- the additional removable locking means for locking the rod in the upper end of the rod are a spring lock,
- the fall-prevention rewinder-unwinder meets EN360 and EN1496 standards,
- the fall prevention reel-unwinder is self-retracting,
- the fall prevention reel-unwinder is manually retractable,
- the fall prevention reel-unwinder is manually retractable and includes a crank for retracting,
- the system and its fall-prevention reel-unwinder are designed for a maximum working load of 150 kg,
- the installation base comprises at least two stepped and aligned hoops and inside which the lower end of the rod can be lowered by sliding and the rod comprises at least one tab intended to come up against the upper hoop in order to form an installation stop,
- the installation base and the lower end of the rod comprise additional removable locking means making it possible to block the lower end of the rod in the installation base,
- the profile of the rod has an open section over its height,
- the profile of the rod has a closed section over at least part of its height,
- the rod is a triangular section profile,
- the rod is a square section profile,
- the rod is a rectangular section profile,
- the rod is a profile with a polygonal section,
- the rod is a triangular section profile,
- the rod is a square section profile,
- the rod is a rectangular section profile,
- the rod is a section of polygonal section,
- the rod is a section profile in H or U,
- the rod has a face oriented towards the manhole and the upper end of the rod comprises an anchoring member consisting of two rigid anchoring points, said two anchoring points being arranged opposite the face the rod oriented towards the manhole,
- the rod anchor points are located above the fall arrest reel / unwinder when the rod is installed at the upper end of the rod,
- the anchoring device system meets EN795-A2012 and TS16415 standards,
- the anchoring member system allows the anchoring of two people to justify a 150kg person.
Parmi les avantages de l'invention, on peut mentionner le fait que les points d'ancrage de l'organe d'ancrage ne peuvent pas être positionnés du côté du trou d'homme et ne peuvent pas pivoter au risque de venir en vis à vis de l'ouverture du trou d'homme aussi bien lors de l'installation de la canne dans l'embase d'installation que lors de l'utilisation de la canne. La manipulation de l'enrouleur-dérouleur, notamment de sa manivelle, s'effectue à distance du trou d'homme et la canne sépare le/les intervenants du trou d'homme contrairement aux installations classiques et notamment les trépieds. La canne est verrouillée automatiquement dans l'embase d'installation par un système de verrou à ressort et elle ne peut être déverrouillée de l'embase d'installation que par une action volontaire. Les opérations d'ancrage à la canne et d'attache au câble se font en toute sécurité à l'opposé du trou d'homme. L'enrouleur-dérouleur antichute sur sa tige et la canne sont équipés d'un système de verrouillage automatique, l'installation de la tige dans la canne se terminant par un verrouillage automatique. Par ailleurs, l'embase d'installation peut être utilisée comme point d'ancrage lorsque la canne n'est pas installée dans ladite embase.Among the advantages of the invention, one can mention the fact that the anchoring points of the anchoring member cannot be positioned on the side of the manhole and cannot pivot at the risk of coming into contact with each other. screw the opening of the manhole both when installing the rod in the installation base and when using the rod. The handling of the reel-unwinder, in particular of its crank, is carried out at a distance from the manhole and the rod separates the worker (s) from the manhole, unlike conventional installations and in particular tripods. The rod is locked automatically in the installation base by a spring lock system and it can only be unlocked from the installation base by voluntary action. The operations of anchoring to the rod and attaching to the cable are done in complete safety opposite the manhole. The anti-fall reel-unwinder on its rod and the rod are equipped with an automatic locking system, the installation of the rod in the rod ending with an automatic locking. Furthermore, the installation base can be used as an anchor point when the rod is not installed in said base.
-
[
Fig. 1 ] représente une vue en perspective de l'étape d'installation d'une canne dans une embase d'installation de canne fixée vers l'extrémité supérieure de la paroi d'un puits d'accès accessible depuis un trou d'homme,[Fig. 1 ] is a perspective view of the step of installing a rod in a rod installation base fixed towards the upper end of the wall of an access shaft accessible from a manhole, -
[
Fig. 2 ] représente une vue en perspective de l'étape d'installation de la tige à enrouleur-dérouleur antichute dans l'extrémité supérieure de la canne déjà installée dans l'embase d'installation de canne,[Fig. 2 ] is a perspective view of the installation step of the fall-prevention reel-unwind rod in the upper end of the rod already installed in the rod installation base, -
[
Fig. 3 ] représente une première vue en perspective de la canne avec sa tige à enrouleur-dérouleur antichute installée,[Fig. 3 ] shows a first perspective view of the rod with its fall-prevention reel-unwinder rod installed, -
[
Fig. 4 ] représente une seconde vue en perspective de la canne avec sa tige à enrouleur-dérouleur antichute installée, sur cesfigures 1 à 4 le moyen de verrouillage déverrouillable à l'extrémité inférieure de la canne étant absent,[Fig. 4 ] shows a second perspective view of the rod with its fall-prevention reel-unwinder rod installed, on thesefigures 1 to 4 the unlockable locking means at the lower end of the rod being absent, -
[
Fig. 5 ] représente une vue d'une canne avec un moyen de verrouillage déverrouillable à l'extrémité inférieure de la canne, et un cartouche d'agrandissement de l'extrémité inférieure de la canne avec le moyen de verrouillage déverrouillable,[Fig. 5 ] shows a view of a cane with an unlockable locking means at the lower end of the cane, and an enlargement cartridge of the lower end of the cane with the unlockable locking means, -
[
Fig. 5a ] représente une coupe selon K-K (cartouche de lafigure 5 ) de l'extrémité inférieure de la canne avec le moyen de verrouillage déverrouillable,[Fig. 5a ] represents a section according to KK (cartridge of thefigure 5 ) from the lower end of the rod with the unlockable locking means, -
[
Fig. 6 ] représente une première vue en perspective de la tige à enrouleur-dérouleur antichute,[Fig. 6 ] represents a first perspective view of the fall-prevention rewinder-unwinder rod, -
[
Fig. 7 ] représente une deuxième vue en perspective de la tige à enrouleur-dérouleur antichute,[Fig. 7 ] shows a second perspective view of the fall-prevention rewinder-unwinder rod, -
[
Fig. 8 ] représente une troisième vue en perspective de la tige à enrouleur-dérouleur antichute,[Fig. 8 ] represents a third perspective view of the fall-prevention rewinder-unwinder rod, -
[
Fig. 9 ] représente une quatrième vue en perspective de la tige à enrouleur-dérouleur antichute,[Fig. 9 ] shows a fourth perspective view of the fall-prevention rewinder-unwinder rod, -
[
Fig. 10 ] représente une première vue en perspective d'une tige à treuil manuel pouvant être insérée dans la canne,[Fig. 10 ] represents a first perspective view of a manual winch rod that can be inserted into the rod, -
[
Fig. 11 ] représente une deuxième vue en perspective de la tige à treuil manuel,[Fig. 11 ] shows a second perspective view of the manual winch rod, -
[
Fig. 12 ] représente une troisième vue en perspective de la tige à treuil manuel, et[Fig. 12 ] shows a third perspective view of the manual winch rod, and -
[
Fig. 13 ] représente une quatrième vue en perspective de la tige à treuil manuel.[Fig. 13 ] shows a fourth perspective view of the manual winch rod.
La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.The description which will follow with reference to the appended drawings, given by way of nonlimiting examples, will make it clear what the invention consists of and how it can be implemented.
Le système de l'invention est notamment destiné à sécuriser l'accès en descente à travers un trou d'homme 2 dans un puits. Comme visible sur les
De préférence, un moyen de verrouillage déverrouillable est mis en œuvre entre l'extrémité inférieure de la canne et l'embase 20 afin d'empêcher toute désinstallation intempestive de la canne 1 hors de l'embase 20. Un tel moyen de verrouillage déverrouillable est représenté sur les
La canne 1 est un profilé 10 métallique comportant donc une extrémité inférieure 15 et une extrémité supérieure 16. Au moins l'extrémité supérieure 16 du profilé 10 est creuse. De préférence, le profilé 10 de la canne est creux sur toute sa hauteur. Le profilé 10 comporte globalement quatre faces : une face côté trou d'homme, une face opposée à la précédente et donc opposée au trou d'homme et deux faces latérales droite et gauche. Sur chaque face latérale du profilé 10, vers l'extrémité supérieure 16 du profilé 10, est réalisé un organe d'ancrage rigide, constitué de deux points d'ancrages 11, 12 en tout et qui sont étendus latéralement et disposés vers la face du profilé opposé au trou d'homme. De ce fait des intervenant devant s'ancrer à un point fixe peuvent le faire sur les deux points d'ancrage 11 et 12 de l'organe d'ancrage sans devoir être positionnés du côté du trou d'homme pour atteindre ces points d'ancrage. Ainsi les points d'ancrage 11 et 12 de la canne sont situés à l'opposé du trou d'homme en vue de garantir l'ancrage en toute sécurité des intervenants, notamment un sauveteur et un opérateur en accès dans le trou.The
L'extrémité supérieure 16 du profilé 10 est ouverte 13 vers le haut et on peut voir sur la
La tige comporte un moyen de verrouillage 40 permettant de la bloquer dans la canne, par exemple du type bouton poussoir qui s'escamote lorsque la tige 30 est descendue dans la canne 1 et qui passe par un trou correspondant et ajusté de la canne une fois la tige en place à la bonne hauteur. Pour pouvoir retirer la tige 30 il faudra appuyer sur le bouton.The rod comprises a locking means 40 allowing it to be locked in the rod, for example of the push-button type which retracts when the
En fait, la tige 30 peut comporter tout type d'appareil de treuillage utile comme l'est le moyen de retenue 3 à enrouleur-dérouleur 31 antichute représenté sur les
Sur les
La tige 30 est installée dans la canne de manière que l'enrouleur-dérouleur 31 soit du côté de la canne qui est opposé au trou d'homme 2, un système détrompeur entre la tige 30 et la canne 1 pouvant imposer cette condition d'installation. La sortie du câble 34 de l'enrouleur-dérouleur 31 est orientée vers le haut, côté de la patte 33 et un moyen de renvoi du câble 34 à type de poulie 36 de renvoi est installé à l'extrémité supérieure de la tige 30, le câble redescendant du côté opposé à l'enrouleur-dérouleur par rapport à la tige 30 et donc de la canne 1 pour renvoyer le câble du côté et vers le trou d'homme 2.The
L'extrémité libre du câble 34 comporte un dispositif 35 d'amortissement de chute et un dispositif d'attache 39 comportant un mousqueton afin qu'un intervenant puisse s'y attacher, de préférence par un harnais de sécurité qu'il porte.The free end of the
Afin d'éviter que le câble 34 ne quitte la poulie 36, un axe 37 goupillé est installé juste au-dessus de la poulie 36. Cet axe 37 est démontable par retrait de la goupille afin de permettre un retrait du câble 34 si nécessaire, notamment si on veut pouvoir manipuler l'extrémité du câble sans avoir à se rapprocher trop du trou d'homme.In order to prevent the
Sur les
Dans l'exemple de réalisation de la canne on a présenté un système dont le moyen de retenue 3 à enrouleur-dérouleur 31 antichute à câble 34 avec sa tige 30 est démontable de la canne et la canne est démontable de l'embase 20 d'installation de canne, la canne et la tige avec l'enrouleur-dérouleur pouvant être emportés pour une utilisation en un autre lieu, seule l'embase restant à demeure dans le puits. Dans une variante on prévoit que l'embase et aussi la canne restent à demeure dans le puits, seul le moyen de retenue 3 à enrouleur-dérouleur et sa tige étant démontable et transportable en un autre lieu d'utilisation. Dans ce dernier cas, on prévoit que la canne puisse être descendue bien en dessous de sa position d'utilisation présentée sur les figures afin de la ranger et que son extrémité supérieure 16 soit ainsi descendue en dessous du niveau du sol pour pouvoir refermer le trou d'homme. Lorsqu'il faudra utiliser la canne, on la tirera pour la remonter en position d'utilisation où elle pourra être verrouillée dans l'embase. On peut prévoir un fourreau avec un fond en dessous de l'embase dans lequel la canne pourra être descendue ou une série d'autres arceaux en dessous de ceux de l'embase dans lesquels la canne glissera lors de sa descente pour rangement et on prévoit une butée à la fin de la descente de rangement afin d'éviter qu'elle ne tombe au fond du puits et afin qu'elle reste accessible lors de l'ouverture ultérieure du trou d'homme pour la remonter.In the exemplary embodiment of the rod, a system has been presented in which the retaining means 3 with reel-
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL20159056T PL3699361T3 (en) | 2019-02-25 | 2020-02-24 | Retaining system with rod with removable fall-prevention winder-unwinder for access shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1901927A FR3093125B1 (en) | 2019-02-25 | 2019-02-25 | Removable fall arrest reel-unwinder rod restraint system for access shafts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3699361A1 true EP3699361A1 (en) | 2020-08-26 |
EP3699361B1 EP3699361B1 (en) | 2021-09-22 |
Family
ID=67185348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20159056.9A Active EP3699361B1 (en) | 2019-02-25 | 2020-02-24 | Retaining system with rod with removable fall-prevention winder-unwinder for access shaft |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3699361B1 (en) |
ES (1) | ES2899614T3 (en) |
FR (1) | FR3093125B1 (en) |
PL (1) | PL3699361T3 (en) |
PT (1) | PT3699361T (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19848168A1 (en) | 1998-10-20 | 2000-04-27 | Rittmann Hans Juergen | Release coupling for a drain shaft at a frame has a cylindrical mantle with a vertical gap between the mantle ends to be clamped together and spread apart to take a sleeve with an inserted connector from above |
WO2003078293A1 (en) * | 2002-03-20 | 2003-09-25 | Alumiloc Inc. | A hoisting apparatus for use at a manhole |
WO2003078233A2 (en) | 2002-03-15 | 2003-09-25 | Lamparter Ronald C | Modular system |
EP2175075A2 (en) | 2008-10-07 | 2010-04-14 | Sperian Fall Protection France | Tripod for manhole |
EP2949816A1 (en) | 2014-05-27 | 2015-12-02 | Francisco Soler Terol | Safety anchorage for inspection wells |
JP2018040111A (en) | 2016-09-05 | 2018-03-15 | 株式会社トーエネック | Block fitting support post for gangway ladder |
-
2019
- 2019-02-25 FR FR1901927A patent/FR3093125B1/en active Active
-
2020
- 2020-02-24 PL PL20159056T patent/PL3699361T3/en unknown
- 2020-02-24 ES ES20159056T patent/ES2899614T3/en active Active
- 2020-02-24 PT PT201590569T patent/PT3699361T/en unknown
- 2020-02-24 EP EP20159056.9A patent/EP3699361B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19848168A1 (en) | 1998-10-20 | 2000-04-27 | Rittmann Hans Juergen | Release coupling for a drain shaft at a frame has a cylindrical mantle with a vertical gap between the mantle ends to be clamped together and spread apart to take a sleeve with an inserted connector from above |
WO2003078233A2 (en) | 2002-03-15 | 2003-09-25 | Lamparter Ronald C | Modular system |
WO2003078293A1 (en) * | 2002-03-20 | 2003-09-25 | Alumiloc Inc. | A hoisting apparatus for use at a manhole |
EP2175075A2 (en) | 2008-10-07 | 2010-04-14 | Sperian Fall Protection France | Tripod for manhole |
EP2949816A1 (en) | 2014-05-27 | 2015-12-02 | Francisco Soler Terol | Safety anchorage for inspection wells |
JP2018040111A (en) | 2016-09-05 | 2018-03-15 | 株式会社トーエネック | Block fitting support post for gangway ladder |
Also Published As
Publication number | Publication date |
---|---|
ES2899614T3 (en) | 2022-03-14 |
PL3699361T3 (en) | 2022-01-31 |
FR3093125B1 (en) | 2021-05-14 |
PT3699361T (en) | 2021-11-23 |
FR3093125A1 (en) | 2020-08-28 |
EP3699361B1 (en) | 2021-09-22 |
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