EP0314565A1 - Device for preventing the upper access to a vertical tubular pipe - Google Patents

Device for preventing the upper access to a vertical tubular pipe Download PDF

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Publication number
EP0314565A1
EP0314565A1 EP88402688A EP88402688A EP0314565A1 EP 0314565 A1 EP0314565 A1 EP 0314565A1 EP 88402688 A EP88402688 A EP 88402688A EP 88402688 A EP88402688 A EP 88402688A EP 0314565 A1 EP0314565 A1 EP 0314565A1
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EP
European Patent Office
Prior art keywords
cover
lever
axis
panel
vertical
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
Application number
EP88402688A
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German (de)
French (fr)
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EP0314565B1 (en
Inventor
Charles Coutier
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Coutier Industrie SARL
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Coutier Industrie SARL
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Publication date
Application filed by Coutier Industrie SARL filed Critical Coutier Industrie SARL
Priority to AT88402688T priority Critical patent/ATE66280T1/en
Publication of EP0314565A1 publication Critical patent/EP0314565A1/en
Application granted granted Critical
Publication of EP0314565B1 publication Critical patent/EP0314565B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/006—Devices for preventing access
    • 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
    • E06C7/185—Devices providing a back support to a person on the ladder, e.g. cages
    • 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

Definitions

  • Devices for ensuring this function, which include a tilting cover, of the hatch type, around a horizontal axis.
  • Their main drawback is that, under its own weight, the tilting flap can pivot on its own from its closed position to its open position if it opens downwards, or from its open position to its position closing if it opens upwards.
  • a false operation when it is opened or a bad locking of its opening position can cause accidents, the released panel striking the person (head or hands) being in the volume it is sweeping.
  • the present invention provides a device for closing a tubular conduit, the design of which allows to obtain an access condemnation which does not have the drawbacks of a tilting cover and also makes it possible to constitute rest stages eliminating the need to build the ladders by offset parts.
  • the invention therefore relates to a device for closing a tubular conduit provided with ladder bars, the main element of which is a cover or flap which is retractable by pivoting about a vertical axis of articulation, fixed and provided on the side of the ladder bars.
  • the cover with a surface substantially equal to the cross section of the duct is pivoted about the vertical axis, by means of a lockable joint, the release of which can only be effected by means of a suitable member when one is above the cover, while it is manual without accessories when the user is under the operculum.
  • the actuation and locking means of this articulation comprise an operating lever mounted to pivot around a second fixed vertical axis and coupled in rotation to the cover.
  • the lever is integral in rotation with a toothed wheel meshing with a toothed wheel wedged on the cover.
  • the cover is articulated around its vertical pivot axis by means of a hinge fitting of which it is integral, which has a radial oblong opening in which is housed a drive finger belonging to the operating lever articulated around the second vertical axis which is located perpendicular to the longitudinal direction of the light and passing through the aforementioned finger when the latter is placed at the outermost end of this light, the cover being in the closed position of the access.
  • the abovementioned lever is constituted by a fitting d articulation of a door or a vertical panel articulated around the second fixed axis.
  • the movement plane of the cover is intersecting with the door panel, the part of this panel situated under the movement plane comprising, on its face turned towards the inside of the tubular conduit, an unlocking handle d 'A lock carried by the panel, and accessible by means of a key by the face of the panel facing outwards from the tubular conduit.
  • the board 1 has a terrace 1, which share a wide crinoline 2 3.
  • 4 railing borders the terrace and defines a passage 5 for access to the ladder from the terrace.
  • the upper part 3 has a crinoline in the form of a railing and for this rises above the level of the terrace, for example up to the level of the railing 4.
  • Access 5 is blocked by a door 6 articulated around a vertical axis materialized by the two fixed pivots 7 a and 7 b .
  • the lower pivot 7 a is carried by a fixed part 8, secured to a conventional amount 4a of the railing 4 making the connection with the upper part of the safety cage.
  • the other pivot 7b is also carried by a fixed part 9 which forms a support for the articulation mechanism of a cover 10 which, shown in the open position, blocks, with the door, the access to the tubular conduit which forms crinoline 3, by placing itself above it.
  • the surface of the cover 10 is substantially equal to the section of the crinoline.
  • the articulation mechanism of the cover 10 has a fitting 11 fixed to the cover 10 and articulated around a pivot 12 which is also carried by the fixed part 9.
  • This fitting 11 has a radial opening 13 in which is housed a finger 14 a secured to a lever 14 which is on the one hand, articulated on the pivot 7 b and on the other hand, fixed to the door panel 6.
  • the operation of this articulation mechanism will be described in detail opposite in Figure 2.
  • the deflection plane of the cover 10 is located in the vicinity of the middle part of the door panel 6.
  • the panel 6 has a handle 15 which, like the bars opening of emergency exits, acts on a ser panel 6 locking groove at an upright 4 b of the railing 4.
  • This lock is not shown, the dashed lines 15 a indicating the functional connection of the handle 15 with the latter.
  • This lock will have its access end on the face of the panel 6 facing the terrace 1. Provision will be made to wire the crinoline 3 to prevent access to the handle 15 from the terrace 1.
  • the fitting 11, U-shaped therefore has an oblong opening 13, which is substantially radial with respect to the pivot 12, in which is housed a drive finger 14 a of the lever 14, which is articulated on the part 9 around the pivot 7 b . It is understood that by operating the lever 14 in pivoting around the axis 7b , one causes a corresponding pivoting of the fitting 11 around the axis 12. This pivoting drive is reversible except for one or two positions and subject that certain conditions are met.
  • This return device can be coupled between a fixed element and the cover or between the lever 14 and the cover or between the lever 14 and a fixed element in known manner. It may be a spring hinge disposed at one or more of the pivots 7b , 12. It is sufficient to prevent access to the lever 14 from above, by placing the lever under the cover 10 or under a wall. of protection carried by this cover, this in the case where the lever 14 is not secured to a door, but constitutes a simple handle for opening the cover when mounted.
  • the light 13 does not have to be strictly radial with respect to the axis 12. It must satisfy the condition set out above. Its location in the fitting 11 as well as the lengths of the lever arms brought into play in the mechanism, will depend on the efforts to be developed to unlock the cover.
  • the lever 14 has an extension 14 b beyond the axis 7 b relative to the finger 14a, which may be operating handle and can also cooperate with a cam surface 16 articulated at 17 on the cover 10 (or any support attached to it).
  • the maneuver in rotation about the axis 17 of the cam 16 can be ensured by any suitable member and in particular a key, from above the cover 10. It can be seen that, turned clockwise, the cam 16 rotates the lever 14 and breaks the bracing between light 13 and finger 14 a . From this moment, it becomes possible to directly maneuver the cover by pivoting around the axis 12, by means of a handle that it would have for this purpose.
  • FIG. 4 which is a diagram in top view of a second embodiment of the invention applied to the locking of the upper access, from a terrace 1 of a crinoline ladder 2.3, 1 the cover 10 is secured at the axis 12 of a toothed wheel 18 which meshes with a toothed wheel 19 secured to the lever 14, to which the door panel 6 is fixed and which is articulated around the axis 7b .
  • the bar 15 is used to control the unlocking of the door 6 at the level of the lock 20.
  • the device according to the invention is reduced to a flap 21 which constitutes a retractable rest bearing, articulated at 22 in the vicinity of a lateral upright of the ladder 2 and locked on the other upright by means a finger 23.
  • This finger can be retracted downwards by acting on a pedal 24 if the user wants to descend, or by acting on a pull handle not shown, located under the flap 21 for the user wanting to climb.
  • the articulation 22 may include a device which recalls the panel 21 either towards the outside of the crinoline 3 or towards the inside according to what the manufacturer wishes.
  • the invention finds an interesting application in safety scales.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Emergency Lowering Means (AREA)
  • Types And Forms Of Lifts (AREA)
  • Replacement Of Web Rolls (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Buffer Packaging (AREA)
  • Processing Of Meat And Fish (AREA)

Abstract

Access to the top of a caged ladder (2, 3) is barred by the device of the invention which comprises a door panel (6) and a closure member (10) both hinged about respective vertical axes (7b, 12), and interconnected like a pair of compasses by a hinge piece (11) and a lever (14) which engages in a slot (13) of the hinge piece.

Description

L'accès supérieur à un conduit tubulaire du gen­re échelle à crinoline ou conduit de regard et d'inspection d'une installation souterraine peut être limité à des personnes autorisées, parce que le conduit peut mener à une zone ou à des matériels dangereux ou de sécurité. Il faut donc condamner cet accès par un dispositif ne pouvant être manoeuvré que par les personnes possédant le moyen de son déverrouillage. Cette condamnation doit cependant ne pas entraver la montée dans le conduit pour quiconque l'uti­lisant comme issue de secours.Upper access to a tubular duct such as a crinoline ladder or manhole for inspection and inspection of an underground installation may be limited to authorized persons, because the duct may lead to an area or to dangerous materials or security. This access must therefore be condemned by a device that can only be operated by people who have the means of unlocking it. This condemnation must not, however, hinder the climb into the conduit for anyone using it as an emergency exit.

On connaît des dispositifs permettant d'assurer cette fonction, qui comportent un opercule basculant, du genre trappe, autour d'un axe horizontal. Leur inconvénient principal tient au fait que, sous son propre poids, le volet basculant peut pivoter seul de sa position de ferme­ture à sa position d'ouverture s'il s'ouvre vers le bas, ou de sa position d'ouverture à sa position de fermeture s'il s'ouvre vers le haut. Ainsi une fausse manoeuvre lors de son ouverture ou un mauvais verrouillage de sa position d'ouverture peut provoquer des accidents, le panneau libéré heurtant la personne (la tête ou les mains) se trouvant dans le volume qu'il balaie.Devices are known for ensuring this function, which include a tilting cover, of the hatch type, around a horizontal axis. Their main drawback is that, under its own weight, the tilting flap can pivot on its own from its closed position to its open position if it opens downwards, or from its open position to its position closing if it opens upwards. Thus a false operation when it is opened or a bad locking of its opening position can cause accidents, the released panel striking the person (head or hands) being in the volume it is sweeping.

Par ailleurs, lorsqu'une échelle dépasse une certaine hauteur, il convient de ménager des paliers de repos, c'est-à-dire des plateformes sur lesquelles l'utili­sateur peut se tenir debout en lachant l'échelle de ses mains. Classiquement, ces paliers de repos sont constitués par des passerelles horizontales qui servent à relier des tronçons d'échelle verticalement décalés, que l'utilisateur est donc contraint d'utiliser tant à la montée qu'à la descente. Ce type de construction est plus onéreux qu'une échelle droite et demande plus de volume pour sa mise en place du fait du décalage des tronçons d'échelle.Furthermore, when a ladder exceeds a certain height, it is advisable to provide rest stages, that is to say platforms on which the user can stand upright by letting go of the ladder with his hands. Conventionally, these rest stages consist of horizontal gangways which serve to connect vertically offset sections of the ladder, which the user is therefore forced to use both when going up and when going down. This type of construction is more expensive than a straight ladder and requires more volume for its installation due to the offset of the ladder sections.

La présente invention propose un dispositif d'ob­turation d'un conduit tubulaire dont la conception permet d'obtenir une condamnation d'accès qui ne présente pas les inconvénients d'un opercule basculant et permet également de constituer des paliers de repos supprimant la nécessité de construire les échelles par parties décalées.The present invention provides a device for closing a tubular conduit, the design of which allows to obtain an access condemnation which does not have the drawbacks of a tilting cover and also makes it possible to constitute rest stages eliminating the need to build the ladders by offset parts.

A cet effet, l'invention a donc pour objet un dispositif d'obturation d'un conduit tubulaire muni de bar­reaux d'échelle dont l'élément principal est un opercule ou volet qui est escamotable par pivotement autour d'un axe vertical d'articulation, fixe et prévu sur le côté des barreaux d'échelle.To this end, the invention therefore relates to a device for closing a tubular conduit provided with ladder bars, the main element of which is a cover or flap which is retractable by pivoting about a vertical axis of articulation, fixed and provided on the side of the ladder bars.

Dans le cas d'une utilisation de cet opercule comme un dispositif de condamnation de l'accès supérieur du conduit, l'opercule de surface sensiblement égale à la section droite du conduit est pivotant autour de l'axe vertical, au moyen d'une articulation verrouillable, dont la libération ne peut s'opérer qu'au moyen d'un organe approprié lorsque l'on est au-dessus de l'opercule, alors qu'elle est manuelle sans accessoire lorsque l'usager se trouve sous l'opercule.When this cover is used as a device for blocking the upper access of the duct, the cover with a surface substantially equal to the cross section of the duct is pivoted about the vertical axis, by means of a lockable joint, the release of which can only be effected by means of a suitable member when one is above the cover, while it is manual without accessories when the user is under the operculum.

Les moyens d'actionnement et de verrouillage de cette articulation comprennent un levier de manoeuvre monté pivotant autour d'un second axe vertical fixe et accouplé en rotation à l'opercule.The actuation and locking means of this articulation comprise an operating lever mounted to pivot around a second fixed vertical axis and coupled in rotation to the cover.

Dans un premier mode de réalisation, le levier est solidaire en rotation d'une roue dentée engrénant avec une roue dentée calée sur l'opercule.In a first embodiment, the lever is integral in rotation with a toothed wheel meshing with a toothed wheel wedged on the cover.

Dans un second mode de réalisation préféré, l'opercule est articulé autour de son axe vertical de pivo­tement au moyen d'une ferrure d'articulation dont il est solidaire, qui possède une ouverture oblongue radiale dans laquelle est logé un doigt d'entraînement appartenant au levier de manoeuvre articulé autour du second axe vertical qui situé sur la perpendiculaire à la direction longitudi­nale de la lumière et passant par le doigt susdit lorsque ce dernier est placé à l'extrémité la plus extérieure de cette lumière, l'opercule étant en position d'obturation de l'accès.In a second preferred embodiment, the cover is articulated around its vertical pivot axis by means of a hinge fitting of which it is integral, which has a radial oblong opening in which is housed a drive finger belonging to the operating lever articulated around the second vertical axis which is located perpendicular to the longitudinal direction of the light and passing through the aforementioned finger when the latter is placed at the outermost end of this light, the cover being in the closed position of the access.

Dans l'un et l'autre des modes de réalisation, si l'accès supérieur du conduit tubulaire, qui est par exem­ple une échelle à crinoline, est au niveau du bord d'une terrasse, le levier susdit est constitué par une ferrure d'articulation d'une porte ou d'un panneau vertical articu­lé autour du second axe fixe.In both embodiments, if the upper access of the tubular conduit, which is for example a crinoline ladder, is at the edge of a terrace, the abovementioned lever is constituted by a fitting d articulation of a door or a vertical panel articulated around the second fixed axis.

Dans cette application, le plan de débattement de l'opercule est sécant avec le panneau de porte, la partie de ce panneau située sous le plan de débattement comportant, sur sa face tournée vers l'intérieur du conduit tubulaire , une poignée de déverrouillage d'une serrure portée par le panneau, et accessible au moyen d'une clé par la face du panneau tournée vers l'extérieur du conduit tubulaire.In this application, the movement plane of the cover is intersecting with the door panel, the part of this panel situated under the movement plane comprising, on its face turned towards the inside of the tubular conduit, an unlocking handle d 'A lock carried by the panel, and accessible by means of a key by the face of the panel facing outwards from the tubular conduit.

L'invention sera mieux comprise au cours de la description donnée ci-après à titre d'exemple purement indicatif et non limitatif qui permettra d'en dégager les avantages et les caractéristiques secondaires.The invention will be better understood during the description given below by way of purely indicative and nonlimiting example which will make it possible to identify the advantages and the secondary characteristics thereof.

Il sera fait référence aux dessins annexés dans lesquels :

  • - la figure 1 est une vue schématique du dispo­sitif selon l'invention appliqué à la condamnation de l'accès supérieur d'une échelle à crinoline située au bord d'une terrasse,
  • - la figure 2 est une vue d'un mode de réalisa­tion possible de l'articulation mise en oeuvre dans l'in­vention,
  • - la figure 3 montre par une vue schématique de dessus une articulation de l'opercule équipé d'un organe de déverrouillage,
  • - la figure 4 illustre schématiquement un autre mode de réalisation du dispositif selon l'invention appli­qué à une condamnation d'accès supérieur,
  • - la figure 5 montre l'invention dans son appli­ cation à un palier de repos.
Reference will be made to the appended drawings in which:
  • FIG. 1 is a schematic view of the device according to the invention applied to the locking of the upper access of a crinoline ladder situated at the edge of a terrace,
  • FIG. 2 is a view of a possible embodiment of the articulation used in the invention,
  • FIG. 3 shows a schematic view from above of an articulation of the cover equipped with an unlocking member,
  • FIG. 4 schematically illustrates another embodiment of the device according to the invention applied to an upper access condemnation,
  • - Figure 5 shows the invention in its app cation at a rest stage.

En se reportant tout d'abord à la Figure 1, on voit le bord 1a d'une terrasse 1, duquel part une échelle 2 à crinoline 3. Une rambarde 4 borde la terrasse et définit un passage 5 d'accès à l'échelle depuis la terrasse. La partie supérieure 3a de la crinoline forme garde-corps et pour cela s'élève au-dessus du niveau de la terrasse, par exemple jusqu'au niveau de la rambarde 4.Referring initially to Figure 1 shows the board 1 has a terrace 1, which share a wide crinoline 2 3. 4 railing borders the terrace and defines a passage 5 for access to the ladder from the terrace. The upper part 3 has a crinoline in the form of a railing and for this rises above the level of the terrace, for example up to the level of the railing 4.

L'accès 5 est condamné par une porte 6 articulée autour d'un axe vertical matérialisé par les deux pivots fixes 7a et 7b. Le pivot inférieur 7a est porté par une pièce fixe 8, classique solidaire d'un montant 4a de la rambarde 4 faisant la liaison avec la partie supérieure de la crinoline.Access 5 is blocked by a door 6 articulated around a vertical axis materialized by the two fixed pivots 7 a and 7 b . The lower pivot 7 a is carried by a fixed part 8, secured to a conventional amount 4a of the railing 4 making the connection with the upper part of the safety cage.

L'autre pivot 7b est également porté par une piéce fixe 9 qui forme support pour le mécanisme d'articu­lation d'un opercule 10 qui, représenté en position ouvert, vient condamner, avec la porte, l'accès du conduit tubulai­re que forme la crinoline 3, en se plaçant au-dessus de celle-ci. La surface de l'opercule 10 est sensiblement égale à la section de la crinoline.The other pivot 7b is also carried by a fixed part 9 which forms a support for the articulation mechanism of a cover 10 which, shown in the open position, blocks, with the door, the access to the tubular conduit which forms crinoline 3, by placing itself above it. The surface of the cover 10 is substantially equal to the section of the crinoline.

Le mécanisme d'articulation de l'opercule 10 possède une ferrure 11 fixée à l'opercule 10 et articulée autour d'un pivot 12 qui est également porté par la pièce fixe 9. Cette ferrure 11 possède une ouverture radiale 13 dans laquelle est logé un doigt 14a solidaire d'un levier 14 qui est d'une part, articulé sur le pivot 7b et d'autre part, fixé au panneau de porte 6. Le fonctionnement de ce mécanisme d'articulation sera décrit en détail en regard de la figure 2.The articulation mechanism of the cover 10 has a fitting 11 fixed to the cover 10 and articulated around a pivot 12 which is also carried by the fixed part 9. This fitting 11 has a radial opening 13 in which is housed a finger 14 a secured to a lever 14 which is on the one hand, articulated on the pivot 7 b and on the other hand, fixed to the door panel 6. The operation of this articulation mechanism will be described in detail opposite in Figure 2.

Sur la figure 1 on notera que le plan de débat­tement de l'opercule 10 est situé au voisinage de la partie médiane du panneau de porte 6. Sous ce plan de débattement, le panneau 6 comporte une poignée 15 qui, à la manière des barres d'ouverture d'issues de secours, agit sur une ser­ rure de verrouillage du panneau 6 au niveau d'un montant 4b du garde-corps 4. Cette serrure n'est pas représentée, les traits mixtes 15a indiquant la liaison fonctionnelle de la poignée 15 avec celle-ci. Cette serrure présentera son extrémité d'accès sur la face du panneau 6 tournée vers la terrasse 1. On aura prévu de grillager la crinoline 3 pour interdire l'accès à la poignée 15 depuis la terrasse 1.In FIG. 1, it will be noted that the deflection plane of the cover 10 is located in the vicinity of the middle part of the door panel 6. Under this deflection plane, the panel 6 has a handle 15 which, like the bars opening of emergency exits, acts on a ser panel 6 locking groove at an upright 4 b of the railing 4. This lock is not shown, the dashed lines 15 a indicating the functional connection of the handle 15 with the latter. This lock will have its access end on the face of the panel 6 facing the terrace 1. Provision will be made to wire the crinoline 3 to prevent access to the handle 15 from the terrace 1.

Sur la figure 2 on a représenté le mécanisme d'articulation conjuguée de l'opercule et de la porte, à l'exception de ces derniers.In Figure 2 there is shown the joint articulation mechanism of the cover and the door, with the exception of the latter.

On retrouve la pièce fixe 9 qui supporte le pivot 12 ici en deux parties 12a et 12b, et, par des extensions latérales 9a, le pivot 7b également en deux parties. La ferrure 11, en forme de U, possède donc une ouverture oblon­gue 13, qui est sensiblement radiale par rapport au pivot 12, dans laquelle est logée un doigt d'entraînement 14a du levier 14, lequel est articulé sur la pièce 9 autour du pivot 7b. On comprend qu'en manoeuvrant le levier 14 en pivotement autour de l'axe 7b, on entraîne un pivotement correspondant de la ferrure 11 autour de l'axe 12. Cet en­traînement en pivotement est réversible sauf pour une ou deux positions et sous réserve que certaines conditions soient satisfaites.We find the fixed part 9 which supports the pivot 12 here in two parts 12 a and 12 b , and, by lateral extensions 9 a , the pivot 7 b also in two parts. The fitting 11, U-shaped, therefore has an oblong opening 13, which is substantially radial with respect to the pivot 12, in which is housed a drive finger 14 a of the lever 14, which is articulated on the part 9 around the pivot 7 b . It is understood that by operating the lever 14 in pivoting around the axis 7b , one causes a corresponding pivoting of the fitting 11 around the axis 12. This pivoting drive is reversible except for one or two positions and subject that certain conditions are met.

Ces positions sont celles représentées aux figures 2 et 3, c'est-à-dire dans les positions de l'oper­cule d'obturation ou d'ouverture complète.These positions are those shown in Figures 2 and 3, that is to say in the positions of the shutter or complete opening.

Dans la position d'obturation(figure 3) il faut que l'axe longitudinal de l'ouverture oblongue 13 soit perpendiculaire à la ligne reliant les centres du pivot 7b et du doigt 14a du levier 14, le doit 14a étant situé à l'extrémité la plus extérieure de l'ouverture 13. On voit en effet que cette condition empêche un mouvement de l'oper­cule dans le sens contraire à celui des aiguilles d'une montre autour du pivot 12, le levier 14 formant bras d'arc­boutement s'opposant à ce mouvement.In the closed position (Figure 3) it is necessary that the longitudinal axis of the oblong opening 13 is perpendicular to the line connecting the centers of the pivot 7 b and the finger 14 a of the lever 14, the must 14 a being located at the outermost end of the opening 13. It can be seen that this condition prevents movement of the cover in the opposite direction to that of clockwise around the pivot 12, the lever 14 forming an arm d arcboutement opposing this movement.

Dans la position d'ouverture complète (figure 2) on retourne ce même arc-boutement car les pièces 12 et 14 ont, chacune, effectué 90° de rotation.In the fully open position (Figure 2) we return this same bracing because the parts 12 and 14 have each performed 90 ° of rotation.

Ainsi, en prévoyant un dispositif de rappel de l'opercule dans sa position d'obturation, l'accès est auto­matiquement obturé et verrouillé dans sa position d'obtura­tion. Ce dispositif de rappel peut être attelé entre un élément fixe et l'opercule ou entre le levier 14 et l'oper­cule ou entre le levier 14 et un élément fixe et ce, de manière connue. Ce peut être un gond à ressort disposé au niveau de l'un ou des pivots 7b, 12. Il suffit d'empêcher l'accès au levier 14 depuis le dessus, en plaçant le levier sous l'opercule 10 ou sous une paroi de protection portée par cet opercule, ceci dans le cas où le levier 14 n'est pas solidaire d'une porte, mais constitue une simple poi­gnée d'ouverture de l'opercule à la montée.Thus, by providing a device for returning the cover to its closed position, the access is automatically closed and locked in its closed position. This return device can be coupled between a fixed element and the cover or between the lever 14 and the cover or between the lever 14 and a fixed element in known manner. It may be a spring hinge disposed at one or more of the pivots 7b , 12. It is sufficient to prevent access to the lever 14 from above, by placing the lever under the cover 10 or under a wall. of protection carried by this cover, this in the case where the lever 14 is not secured to a door, but constitutes a simple handle for opening the cover when mounted.

On peut également prévoir un dispositif de rappel de l'opercule dans sa position d'ouverture complète dans laquelle il sera également verrouillé. S'il est nécessaire d'empêcher ce verrouillage à l'ouverture, on prévoiera des butées pour limiter le débattement des pièces 12,14 autour de leurs axes.It is also possible to provide a device for returning the cover to its fully open position in which it will also be locked. If it is necessary to prevent this locking on opening, stops will be provided to limit the movement of the parts 12, 14 around their axes.

On notera par ailleurs, en revenant à la figure 2 que les pièces articulées entre elles sont avantageuse­ment en forme de U, ce qui permet de disposer d'un dispo­sitif très robuste et très compact Bien entendu, les dis­positions visibles sur la figure 2 existent également sur les ailes inférieures (vues de dessous) des pièces en U.Note also, returning to Figure 2 that the parts hinged together are advantageously U-shaped, which provides a very robust and very compact device Of course, the arrangements visible in Figure 2 also exist on the lower wings (seen from below) of the U-shaped parts.

On mentionnera également le fait que la lumière 13 n'a pas à être strictement radiale par rapport à l'axe 12. Elle doit satisfaire la condition énoncée ci-dessus. Son emplacement dans la ferrure 11 ainsi que les longueurs des bras de leviers mis en jeu dans le mécanisme, seront fonction des efforts à développer pour débloquer l'oper­cule.It will also be mentioned that the light 13 does not have to be strictly radial with respect to the axis 12. It must satisfy the condition set out above. Its location in the fitting 11 as well as the lengths of the lever arms brought into play in the mechanism, will depend on the efforts to be developed to unlock the cover.

En revenant enfin à la figure 3, on remarque que le levier 14 possède une extension 14b au delà de l'axe 7b par rapport au doigt 14a, qui peut constituer poignée de manoeuvre et qui peut également coopérer avec une surface de came 16 articulée en 17 sur l'opercule 10 (ou tout sup­port qui lui est attelé). La manoeuvre en rotation autour de l'axe 17 de la came 16 peut être assurée par tout organe convenable et notamment une clef, par le dessus de l'oper­cule 10. On voit que, tournée dans le sens horaire, la came 16 fait tourner le levier 14 et rompt l'arc-boutement entre lumière 13 et doigt 14a. A partir de ce moment, il devient possible de manoeuvrer directement l'opercule en pivotement autour de l'axe 12, au moyen d'une poignée qu'il comporte­rait à cet effet.Finally back to Figure 3, it is noted that the lever 14 has an extension 14 b beyond the axis 7 b relative to the finger 14a, which may be operating handle and can also cooperate with a cam surface 16 articulated at 17 on the cover 10 (or any support attached to it). The maneuver in rotation about the axis 17 of the cam 16 can be ensured by any suitable member and in particular a key, from above the cover 10. It can be seen that, turned clockwise, the cam 16 rotates the lever 14 and breaks the bracing between light 13 and finger 14 a . From this moment, it becomes possible to directly maneuver the cover by pivoting around the axis 12, by means of a handle that it would have for this purpose.

Sur la figure 4, qui est un schéma en vue de dessus d'une seconde réalisation de l'invention appliquée à la condamnation de l'accès supérieur, à partir d'une terras­se 1 d'une échelle à crinoline 2,3, l'opercule 10 est solidaire au niveau de l'axe 12 d'une roue dentée 18 qui engrène avec une roue dentée 19 solidaire du levier 14, au­quel est fixé le panneau de porte 6 et qui est articulé autour de l'axe 7b. De même que pour la figure 1, la barre 15 sert à commander le déverrouillage de la porte 6 au niveau de la serrure 20.In FIG. 4, which is a diagram in top view of a second embodiment of the invention applied to the locking of the upper access, from a terrace 1 of a crinoline ladder 2.3, 1 the cover 10 is secured at the axis 12 of a toothed wheel 18 which meshes with a toothed wheel 19 secured to the lever 14, to which the door panel 6 is fixed and which is articulated around the axis 7b . As in FIG. 1, the bar 15 is used to control the unlocking of the door 6 at the level of the lock 20.

Enfin, à la figure 5, le dispositif selon l'in­vention est réduit à un volet 21 qui constitue palier de repos escamotable, articulé en 22 au voisinage d'un montant latéral de l'échelle 2 et verrouillé sur l'autre montant au moyen d'un doigt 23. Ce doigt peut être escamoté vers le bas en agissant sur une pédale 24 si l'usager veut descendre, ou en agissant sur une poignée de tirage non représentée, située sous le volet 21 pour l'usager voulant monter.Finally, in FIG. 5, the device according to the invention is reduced to a flap 21 which constitutes a retractable rest bearing, articulated at 22 in the vicinity of a lateral upright of the ladder 2 and locked on the other upright by means a finger 23. This finger can be retracted downwards by acting on a pedal 24 if the user wants to descend, or by acting on a pull handle not shown, located under the flap 21 for the user wanting to climb.

L'articulation 22 peut comporter un dispositif qui rappelle le panneau 21 soit vers l'extérieur de la crinoline 3 soit vers l'intérieur selon ce que le constructeur souhaite.The articulation 22 may include a device which recalls the panel 21 either towards the outside of the crinoline 3 or towards the inside according to what the manufacturer wishes.

L'invention trouve une application intéressante dans les échelles de sécurité.The invention finds an interesting application in safety scales.

Claims (10)

1. Dispositif d'obturation d'un conduit tubulai­re (3) sensiblement vertical muni de barreaux d'échelle (2) caractérisé en ce qu'il comporte un opercule (10,21) qui est escamotable par pivotement autour d'un axe vertical d'articulation (12,22) fixe et prévu sur le côté des bar­reaux d'échelle.1. Device for closing a substantially vertical tubular conduit (3) provided with ladder bars (2) characterized in that it comprises a cover (10,21) which is retractable by pivoting about a vertical axis articulation (12,22) fixed and provided on the side of the ladder bars. 2. Dispositif selon la revendication 1 caractéri­sé en ce qu'il comporte des moyens d'actionnement et de verrouillage en rotation de l'opercule (10) comprenant un levier (14) de manoeuvre, monté pivotant au­tour d'un second axe fixe vertical (7b) voisin de l'axe (12) susdit, et accouplé en rotation à l'opercule (10).2. Device according to claim 1 characterized in that it comprises means for actuating and locking in rotation the cover (10) comprising a lever (14) for maneuver, pivotally mounted around a second vertical fixed axis (7 b ) adjacent to the above axis (12), and coupled in rotation to the cover (10). 3. Dispositif selon la revendication 2, caractéri­sé en ce que le levier (14) est solidaire d'une roue dentée (19) engrénant avec une roue dentée (18) calée sur l'opercule (10).3. Device according to claim 2, characterized in that the lever (14) is integral with a toothed wheel (19) meshing with a toothed wheel (18) wedged on the cover (10). 4. Dispositif selon la revendication 2 utilisé comme dispositif de condamnation de l'accès supé­rieur du conduit tubulaire (2,3), caractérisé en ce que ledit opercule (10) est de surface sensiblement égale à la section droite du conduit et est articulé autour d'un axe (12) vertical au moyen d'une ferrure d'articulation (11) dont il est solidaire, qui possède une ouverture (13) oblongue dans laquelle est logé un doigt (14a) d'entraîne­ment appartenant à un levier (14) de manoeuvre articulé autour d'un second axe (7b) vertical fixe situé sur la per­pendiculaire à la direction longitudinale de la lumière (13) et passant par le doigt (14a) susdit lorsque ce der­nier est placé à l'extrémité la plus extérieure de cette lumière (13), l'opercule (10) étant en position d'obtura­tion de l'accès.4. Device according to claim 2 used as a device for blocking the upper access of the tubular conduit (2,3), characterized in that said cover (10) has a surface substantially equal to the cross section of the conduit and is articulated around an axis (12) vertically by means of a hinge fitting (11) which it is integral, which has an opening (13) oblong in which is housed a pin (14 a) belonging to a drive lever (14) for maneuver articulated around a second fixed vertical axis ( 7b ) situated on the perpendicular to the longitudinal direction of the light (13) and passing through the aforementioned finger (14a) when the latter is placed at the end the outermost of this light (13), the cover (10) being in the closed position of the access. 5. Dispositif selon la revendication 3 ou la revendication 4 caractérisé en ce que le levier ( 14) sus­dit est constitué par une ferrure d'articulation d'une porte (6) verticale articulée autour du second axe fixe (7b).5. Device according to claim 3 or claim 4 characterized in that the lever (14) above is constituted by a hinge fitting of a door (6) vertical articulated around the second fixed axis ( 7b ). 6. Dispositif selon la revendication 3 ou la revendication 4, caractérisé en ce que le levier (14) sus­dit est situé sous l'opercule (10).6. Device according to claim 3 or claim 4, characterized in that the aforementioned lever (14) is located under the cover (10). 7. Dispositif selon la revendication 4 et la revendication 6, caractérisé en ce que l'opercule (10) pos­sède une surface de came (16) escamotable au moyen d'une serrure d'actionnement, coopérant avec une partie (14b) du levier (14) située au delà de son axe d'articulation (7b) par rapport au doigt d'entraînement (14a).7. Device according to claim 4 and claim 6, characterized in that the cover (10) has a cam surface (16) retractable by means of an actuating lock, cooperating with a part (14 b ) of the lever (14) situated beyond its hinge axis (7b) relative to the drive finger (14 a). 8. Dispositif selon l'une quelconque des revendi­cations précédentes caractérisé en ce que l'opercule (10) comporte un organe de rappel dans sa position de fermeture.8. Device according to any one of the preceding claims, characterized in that the cover (10) comprises a return member in its closed position. 9. Dispositif selon l'une quelconque des revendi­cations 2 à 7, caractérisé en ce que le levier (14) compor­te un organe de rappel dans sa position de verrouillage de l'opercule (10).9. Device according to any one of claims 2 to 7, characterized in that the lever (14) comprises a return member in its locking position of the cover (10). 10. Dispositif selon la revendication 5, caracté­risé en ce que le plan de débattement de l'opercule (10) est sécant avec le panneau (6) de porte, la partie de ce panneau située sous le plan de débattement comportant sur sa face tournée vers l'intérieur du conduit tubulaire (2,3) une poignée (15) de déverrouillage d'une serrure portée par le panneau (6) et accessible au moyen d'une clé par la face du panneau tournée vers l'extérieur du conduit tubu­laire.10. Device according to claim 5, characterized in that the movement plane of the cover (10) intersects with the door panel (6), the part of this panel located under the movement plane having on its turned side towards the inside of the tubular conduit (2,3) a handle (15) for unlocking a lock carried by the panel (6) and accessible by means of a key from the face of the panel facing the exterior of the conduit tubular.
EP88402688A 1987-10-30 1988-10-25 Device for preventing the upper access to a vertical tubular pipe Expired - Lifetime EP0314565B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88402688T ATE66280T1 (en) 1987-10-30 1988-10-25 DEVICE FOR CLOSING THE UPPER ACCESS OF A VERTICAL TUBULAR SHAFT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8715115 1987-10-30
FR8715115A FR2622631B1 (en) 1987-10-30 1987-10-30

Publications (2)

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EP0314565A1 true EP0314565A1 (en) 1989-05-03
EP0314565B1 EP0314565B1 (en) 1991-08-14

Family

ID=9356372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88402688A Expired - Lifetime EP0314565B1 (en) 1987-10-30 1988-10-25 Device for preventing the upper access to a vertical tubular pipe

Country Status (7)

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US (1) US4881619A (en)
EP (1) EP0314565B1 (en)
JP (1) JPH01153167A (en)
AT (1) ATE66280T1 (en)
AU (1) AU2436088A (en)
DE (1) DE3864235D1 (en)
FR (1) FR2622631B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002863A1 (en) * 1988-09-09 1990-03-22 Coutier Industrie Pivoting obturation panel fitted with a locking device
DE9001869U1 (en) * 1990-02-16 1990-04-19 Söll Industrieschmiede GmbH, 8670 Hof Resting platform for crampon walks
FR2647830A1 (en) * 1989-06-05 1990-12-07 Coutier Ind Device for closing off a vertical passage equipped with a ladder
EP0402214A1 (en) * 1989-06-05 1990-12-12 Etablissements Charles Coutier Safety device for the access to a ladder from an upper floor
WO1995001495A1 (en) * 1993-07-02 1995-01-12 Söll Gmbh Platform
CN114033297A (en) * 2021-03-09 2022-02-11 杭州金砖信息技术有限公司 Chain staple bolt type antenna fast-assembling structure on pipe tower

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255758A (en) * 1991-02-25 1993-10-26 Cherokee Construction Co. Protective ladder assembly for scaffolding structure
US20070151801A1 (en) * 2005-12-30 2007-07-05 Starcon International, Inc. Collapsible ladder cage
US8584409B1 (en) 2012-10-01 2013-11-19 Victor Hibbard Stairway barricade assemblies and methods

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DE55011C (en) * R. GOTTSCHALK in Chemnitz i. S Rescue ladder for use in the event of a fire hazard
US956183A (en) * 1909-01-12 1910-04-26 Franz Scherrer Fire-escape.
US2535544A (en) * 1948-01-09 1950-12-26 William D Mckinley Safety ladder
US3038555A (en) * 1960-02-18 1962-06-12 William A Da Lee Inc Retractable safety landing for an access tube
EP0151076A2 (en) * 1984-01-27 1985-08-07 Etablissements Charles Coutier Device for preventing access to derrick ladders

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US257867A (en) * 1882-05-16 hendeioks
US4524848A (en) * 1984-07-16 1985-06-25 Russo John B Device for deterring unauthorized climbing of permanent ladders

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Publication number Priority date Publication date Assignee Title
DE55011C (en) * R. GOTTSCHALK in Chemnitz i. S Rescue ladder for use in the event of a fire hazard
US956183A (en) * 1909-01-12 1910-04-26 Franz Scherrer Fire-escape.
US2535544A (en) * 1948-01-09 1950-12-26 William D Mckinley Safety ladder
US3038555A (en) * 1960-02-18 1962-06-12 William A Da Lee Inc Retractable safety landing for an access tube
EP0151076A2 (en) * 1984-01-27 1985-08-07 Etablissements Charles Coutier Device for preventing access to derrick ladders

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002863A1 (en) * 1988-09-09 1990-03-22 Coutier Industrie Pivoting obturation panel fitted with a locking device
FR2647830A1 (en) * 1989-06-05 1990-12-07 Coutier Ind Device for closing off a vertical passage equipped with a ladder
EP0402214A1 (en) * 1989-06-05 1990-12-12 Etablissements Charles Coutier Safety device for the access to a ladder from an upper floor
WO1990015219A1 (en) * 1989-06-05 1990-12-13 Coutier Industrie Safety device for access to a ladder from an upper floor
DE9001869U1 (en) * 1990-02-16 1990-04-19 Söll Industrieschmiede GmbH, 8670 Hof Resting platform for crampon walks
WO1995001495A1 (en) * 1993-07-02 1995-01-12 Söll Gmbh Platform
CN114033297A (en) * 2021-03-09 2022-02-11 杭州金砖信息技术有限公司 Chain staple bolt type antenna fast-assembling structure on pipe tower

Also Published As

Publication number Publication date
DE3864235D1 (en) 1991-09-19
FR2622631B1 (en) 1990-11-30
EP0314565B1 (en) 1991-08-14
ATE66280T1 (en) 1991-08-15
FR2622631A1 (en) 1989-05-05
AU2436088A (en) 1989-05-04
JPH01153167A (en) 1989-06-15
US4881619A (en) 1989-11-21

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