EP0507708A1 - Safety device for hinged manhole cover - Google Patents

Safety device for hinged manhole cover Download PDF

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Publication number
EP0507708A1
EP0507708A1 EP92420105A EP92420105A EP0507708A1 EP 0507708 A1 EP0507708 A1 EP 0507708A1 EP 92420105 A EP92420105 A EP 92420105A EP 92420105 A EP92420105 A EP 92420105A EP 0507708 A1 EP0507708 A1 EP 0507708A1
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EP
European Patent Office
Prior art keywords
lever
frame
finger
hook
articulated
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
EP92420105A
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German (de)
French (fr)
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EP0507708B1 (en
Inventor
Jean Mazart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norinco SA
Original Assignee
SODIF SA
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Publication date
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Publication of EP0507708A1 publication Critical patent/EP0507708A1/en
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Publication of EP0507708B1 publication Critical patent/EP0507708B1/en
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Expired - Lifetime legal-status Critical Current

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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
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1463—Hinged connection of cover to frame
    • 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
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • 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
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
    • E05C17/16—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted only at one end and having an elongated slot
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1091—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a gas spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2999/00—Subject-matter not otherwise provided for in this subclass

Definitions

  • the invention relates to the manhole cover comprising one or more buffers articulated with respect to a frame and which can occupy either a closed position, in which the pad closes the opening made in this frame, or an open position, in which the pad releases this opening and is drawn up substantially vertically.
  • Such a device controls the movement of the tampon, but does not ensure its positive locking in the open position, so that accidents can still occur.
  • DE-B-1231590 also discloses a device for locking an insulating glazing unit comprising, articulated on the frame, a lever which, provided with an oblong slot in which a finger of the glazing frame can move, comprises at its free end a manually actuated locking lever for both locking and unlocking.
  • the object of the present invention is to provide a security device which, automatically, at the end of opening, positive blocking of the pad, is inexpensive and reliable, while being easily unlockable manually.
  • the lever straightens up at the same time as it, and thanks to its articulation different from that of this tampon, describes by its free end a trajectory which gradually brings the hook, held in a substantially vertical position by its own weight, at the level of the pad finger. At the end of movement, this hook engages under the finger, transforming the lever into a wedging leg.
  • the manhole cover is composed of a frame 2 and two trapezoidal pads 3. Each of the pads 3 is articulated by horizontal axes 4 on yokes 5 projecting from the belt 2a of the frame 2.
  • Each buffer is associated with a gas spring 6, the body 6a of which is articulated on an axis 7 disposed on a tab 8 projecting below the belt of the frame.
  • the rod 6b of the gas spring 6 is articulated on an axis 9 fixed on a tab 10 projecting from an inner lateral rib 11 of the corresponding pad 3.
  • the safety device is constituted by a lever 12 which, in this embodiment, is arranged on the other side of the rib 11 of the buffer with respect to the gas spring 6.
  • the lower end of this lever is articulated on axis 7 for the gas spring, that is to say below the articulation 4 of the buffer 3 on the frame 2.
  • This lever is provided near its end upper of a longitudinal oblong opening 13 in which slides an extension 9a of the articulation axis 9, of the gas spring 6 on the tab 10 of the pad 3.
  • the lever 12 is provided with a hook 14 articulated at 15 on this lever.
  • the hook 14 tends to remain below the hinge axis 15, and to occupy a position in which its body remains substantially vertical with its hook-shaped part open upwards and towards the extension 9a of axis 9.
  • the lever 12 When the plug is in the closed position, and as shown in solid lines in FIG. 2, the lever 12 is arranged parallel to the gas spring 6 below the opening 21 of the frame 2.
  • the device according to the invention is particularly simple to produce and inexpensive, considerably improves the safety of the personnel by ensuring the automatic locking of the pad 3 on opening and by opposing any untimely folding of the stamp 3 on the frame.
  • This device which has been described in the context of its application to a manhole comprising two trapezoidal buffers, can of course be applied to manholes having tamons of different shapes.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Hinges (AREA)
  • Fluid-Damping Devices (AREA)
  • Road Paving Structures (AREA)
  • Road Signs Or Road Markings (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)

Abstract

This device is of the type consisting of a lever for locking the cover in the open position, hinged to the frame under the hinge between the cover and this frame and comprising a slot which is capable of interacting with a finger which is firmly attached to the cover and, hinged at its free end, a hook which is capable of interacting with the abovementioned finger. According to the invention, the pin (7) of the hinge between the lever (12) and the frame (2) is formed by the pin of the hinge between the frame and the body (6a) of a gas spring, whilst, on the one hand, the pin (9) of the hinge between the rod (6b) of this gas spring and the cover is extended, beyond the lug (10) of the cover to which it is fixed, in order to form the finger, interacting with the oblong slot (13) of the lever (12) and with the hook (14), and, on the other hand, the hook (14) is weighty and is hinged at the free end of the lever (12) so that, at the end of the opening movement and by virtue of the positioning ensured by its own weight, it is hooked under the finger, thereby forming a means for automatically locking the cover. <IMAGE>

Description

L'invention est relative au regard de chaussée comportant un ou plusieurs tampons articulés par rapport à un cadre et pouvant occuper soit une position fermée, dans laquelle le tampon obture l'ouverture ménagée dans ce cadre, soit une position ouverte, dans laquelle le tampon dégage cette ouverture et est dressé sensiblement verticalement.The invention relates to the manhole cover comprising one or more buffers articulated with respect to a frame and which can occupy either a closed position, in which the pad closes the opening made in this frame, or an open position, in which the pad releases this opening and is drawn up substantially vertically.

Pour éviter le basculement intempestif du tampon, il est déjà connu d'aménager sa zone d'articulation de manière qu'en position ouverte, il dépasse la verticale afin que son propre poids tende à augmenter son basculement à l'opposé de l'ouverture et le maintienne contre une butée.To avoid inadvertent tilting of the buffer, it is already known to arrange its articulation zone so that in the open position, it exceeds the vertical so that its own weight tends to increase its tilting away from the opening and hold it against a stop.

En pratique, la nécessité de prévoir sur le cadre des butées de calage de la position du tampon, butées qui s'inscrivent dans le cadre et n'en débordent pas, limite la course de basculement du tampon vers l'extérieur et rend la sécurité illusoire.In practice, the need to provide buffering stops for the buffer position on the frame, stops which fit into the frame and do not overflow, limits the tilting stroke of the buffer outwards and makes safety illusory.

Pour limiter les accidents à la fermeture, et faciliter le mouvement d'ouverture du tampon, en général, très lourd, il est connu, notamment par EP-A-85433, d'associer à ce dernier un ressort à gaz dont le corps est articulé sur le cadre et dont la tige est articulée sur une patte saillant de la face inférieure du tampon.To limit accidents during closing, and to facilitate the opening movement of the tampon, which is generally very heavy, it is known, in particular by EP-A-85433, to associate with the latter a gas spring whose body is articulated on the frame and the rod of which is articulated on a protruding lug from the underside of the pad.

Un tel dispositif assure un contrôle du mouvement du tampon, mais n'assure pas son verrouillage positif en position ouverture, de sorte que des accidents peuvent encore se produire.Such a device controls the movement of the tampon, but does not ensure its positive locking in the open position, so that accidents can still occur.

On connaît également par DE-B-1231590 un dispositif de verrouillage d'un vitrage isolant comprenant, articulé sur le dormant, un levier qui, muni d'une lumière oblongue dans laquelle peut se déplacer un doigt de l'encadrement du vitrage, comporte à son extrémité libre un levier de verrouillage à actionnement manuel tant pour le verrouillage que pour le déverrouillage.DE-B-1231590 also discloses a device for locking an insulating glazing unit comprising, articulated on the frame, a lever which, provided with an oblong slot in which a finger of the glazing frame can move, comprises at its free end a manually actuated locking lever for both locking and unlocking.

La présente invention a pour but de fournir un dispositif de sécurité qui, assurant automatiquement, en fin d'ouverture, le blocage positif du tampon, soit peu onéreux et fiable, tout en étant facilement déverrouillable manuellement.The object of the present invention is to provide a security device which, automatically, at the end of opening, positive blocking of the pad, is inexpensive and reliable, while being easily unlockable manually.

A cet effet, l'axe d'articulation du levier sur le cadre et constitué par l'axe d'articulation sur le cadre du corps d'un ressort à gaz, tandis que, d'une part, l'axe d'articulation de la tige de ce ressort à gaz sur le tampon se prolonge, au-delà de la patte du tampon sur laquelle il est fixé, pour former le doigt, coopérant avec la lumière oblongue du levier et avec le crochet, et que d'autre part, le crochet est pesant et est articulé à l'extrémité libre du levier de manière que, en fin de mouvement d'ouverture et grâce au positionnement assuré par son propre poids, il s'accroche sous le doigt en formant moyen de calage automatique du tampon.For this purpose, the axis of articulation of the lever on the frame and constituted by the axis of articulation on the frame of the body of a gas spring, while, on the one hand, the axis of articulation of the rod of this gas spring on the pad extends, beyond the tab of the pad on which it is fixed, to form the finger, cooperating with the oblong opening of the lever and with the hook, and that other part, the hook is heavy and is articulated at the free end of the lever so that, at the end of the opening movement and thanks to the positioning ensured by its own weight, it hangs under the finger, forming a means of automatic setting of the tampon.

Lorsque le tampon est amené en position d'ouverture, avec l'aide du ressort à gaz, le levier se redresse en même temps que lui, et grâce à son articulation différente de celle de ce tampon, décrit par son extrémité libre une trajectoire qui amène progressivement le crochet, maintenu en position sensiblement verticale par son propre poids, au niveau du doigt du tampon. En fin de mouvement, ce crochet s'engage sous le doigt en transformant le levier en jambe de calage.When the tampon is brought into the open position, with the help of the gas spring, the lever straightens up at the same time as it, and thanks to its articulation different from that of this tampon, describes by its free end a trajectory which gradually brings the hook, held in a substantially vertical position by its own weight, at the level of the pad finger. At the end of movement, this hook engages under the finger, transforming the lever into a wedging leg.

Bien entendu, pour déverrouiller le tampon, il suffit d'écarter manuellement le crochet du doigt et d'amorcer la course de pivotement vers le bas du tampon.Of course, to unlock the pad, it suffices to manually remove the hook from the finger and initiate the pivoting stroke down the pad.

La coopération du levier et du ressort à gaz, simplifie la construction et en réduit le coût, tandis que leur proximité et leur disposition sur le côté du tampon réduit l'encombrement du mécanisme tout en dégageant l'accès du regard.The cooperation of the lever and the gas spring simplifies the construction and reduces the cost, while their proximity and their arrangement on the side of the buffer reduces the size of the mechanism while freeing access from the gaze.

L'invention sera mieux comprise à l'aide de la description qui suit en référence au dessin schématique annexé, représentant à titre d'exemple non limitatif, une forme d'exécution de ce dispositif de sécurité dans le cas de son application à un regard comportant deux tampons trapézoïdaux.

  • Figure 1 est une vue partielle en coupe transversale du regard de chaussée le montrant lorsque l'un de ses tampons est en position d'ouverture,
  • Figures 2 et 3 sont des vues de côté en coupe transversale suivant II-II de figure 1, montrant le regard respectivement, lorsqu'il est en position de fermeture et lorsqu'il est en position d'ouverture.
The invention will be better understood with the aid of the description which follows with reference to the appended diagrammatic drawing, representing by way of nonlimiting example, an embodiment of this safety device in the case of its application to a gaze comprising two trapezoidal buffers.
  • FIG. 1 is a partial cross-section view of the manhole cover showing it when one of its buffers is in the open position,
  • Figures 2 and 3 are side views in cross section along II-II of Figure 1, showing the manhole respectively, when it is in the closed position and when it is in the open position.

De façon connue, le regard de chaussée est composé d'un cadre 2 et de deux tampons trapézoïdaux 3. Chacun des tampons 3 est articulé par des axes horizontaux 4 sur des chapes 5 saillant de la ceinture 2a du cadre 2.In known manner, the manhole cover is composed of a frame 2 and two trapezoidal pads 3. Each of the pads 3 is articulated by horizontal axes 4 on yokes 5 projecting from the belt 2a of the frame 2.

Chaque tampon est associé à un ressort à gaz 6 dont le corps 6a est articulé sur un axe 7 disposé sur une patte 8 saillant au-dessous de la ceinture du cadre. La tige 6b du ressort à gaz 6 est articulée sur un axe 9 fixé sur une patte 10 saillant d'une nervure latérale intérieure 11 du tampon 3 correspondant.Each buffer is associated with a gas spring 6, the body 6a of which is articulated on an axis 7 disposed on a tab 8 projecting below the belt of the frame. The rod 6b of the gas spring 6 is articulated on an axis 9 fixed on a tab 10 projecting from an inner lateral rib 11 of the corresponding pad 3.

Le dispositif de sécurité est constitué par un levier 12 qui, dans cette forme d'exécution, est disposé de l'autre côté de la nervure 11 du tampon par rapport au ressort à gaz 6. L'extrémité inférieure de ce levier est articulée sur l'axe 7 pour le ressort à gaz, c'est à dire au-dessous de l'articulation 4 du tampon 3 sur le cadre 2. Ce levier est muni à proximité de son extrémité supérieure d'une lumière oblongue longitudinale 13 dans laquelle coulisse un prolongement 9a de l'axe d'articulation 9, du ressort à gaz 6 sur la patte 10 du tampon 3.The safety device is constituted by a lever 12 which, in this embodiment, is arranged on the other side of the rib 11 of the buffer with respect to the gas spring 6. The lower end of this lever is articulated on axis 7 for the gas spring, that is to say below the articulation 4 of the buffer 3 on the frame 2. This lever is provided near its end upper of a longitudinal oblong opening 13 in which slides an extension 9a of the articulation axis 9, of the gas spring 6 on the tab 10 of the pad 3.

Enfin, à son extrémité libre, le levier 12 est muni d'un crochet 14 articulé en 15 sur ce levier. Comme le montre la figure 2, de par son propre poids, le crochet 14 tend à rester au-dessous de l'axe d'articulation 15, et à occuper une position dans laquelle son corps reste sensiblement vertical avec sa partie en forme de crochet ouverte vers le haut et vers le prolongement 9a de l'axe 9.Finally, at its free end, the lever 12 is provided with a hook 14 articulated at 15 on this lever. As shown in Figure 2, by its own weight, the hook 14 tends to remain below the hinge axis 15, and to occupy a position in which its body remains substantially vertical with its hook-shaped part open upwards and towards the extension 9a of axis 9.

Lorsque le tampon est en position de fermeture, et comme montré en traits continus à la figure 2, le levier 12 est disposé parallèlement au ressort à gaz 6 au-dessous de l'ouverture 21 du cadre 2.When the plug is in the closed position, and as shown in solid lines in FIG. 2, the lever 12 is arranged parallel to the gas spring 6 below the opening 21 of the frame 2.

Lorsque le tampon est amené en position d'ouverture par pivotement dans le sens de la flèche 22 de figure 2, il est assisté par le ressort à gaz 6, qui s'étend et il entraîne le levier 12. Durant ce pivotement et grâce à l'écart E entre les axes d'articulation 4, du tampon 3 sur le cadre 2, et 7, du levier 12 sur le même cadre, l'extrémité libre du levier muni du crochet 14, sécante la trajectoire rotative du prolongement 9a de l'axe 9. Il en résulte que le crochet vient s'enfourcher sous le doigt constitué par ce prolongement en assurant automatiquement le calage mécanique du tampon 3 dans la position d'ouverture représentée à la figure 3.When the pad is brought into the open position by pivoting in the direction of the arrow 22 in FIG. 2, it is assisted by the gas spring 6, which extends and it drives the lever 12. During this pivoting and thanks to the distance E between the articulation axes 4, of the buffer 3 on the frame 2, and 7, of the lever 12 on the same frame, the free end of the lever provided with the hook 14, intersects the rotary trajectory of the extension 9a of the axis 9. As a result, the hook is mounted under the finger formed by this extension, automatically ensuring the mechanical setting of the pad 3 in the open position shown in FIG. 3.

Cette figure montre que, lorsque le dispositif de sécurité est dans cette position, il est absolument impossible que le tampon 3 puisse retomber pour venir obturer l'ouverture 21 du cadre 2.This figure shows that, when the safety device is in this position, it is absolutely impossible for the pad 3 to fall back to close the opening 21 of the frame 2.

Pour procéder à la fermeture, il suffit de faire pivoter manuellement le crochet 14 autour d'un axe 15 dans le sens de la flèche 23 de figure 3 et, simultanément, de provoquer le pivotement du tampon 3 dans le sens de la flèche 24, pivotement contrôler par la compression du ressort à gaz 6.To close, it suffices to manually rotate the hook 14 around an axis 15 in the direction of the arrow 23 in FIG. 3 and, simultaneously, to cause the swivel of the pad 3 in the direction of the arrow 24, pivoting check by compression of the gas spring 6.

Il ressort de ce qui précède que le dispositif selon l'invention est particulièrement simple à réaliser et peu onéreux, améliore considérablement la sécurité du personnel en assurant le verrouillage automatique du tampon 3 à l'ouverture et en s'opposant à tout rabattement intempestif du tampon 3 sur le cadre.It emerges from the above that the device according to the invention is particularly simple to produce and inexpensive, considerably improves the safety of the personnel by ensuring the automatic locking of the pad 3 on opening and by opposing any untimely folding of the stamp 3 on the frame.

Ce dispositif, qui a été décrit dans le cadre de son application à un regard comportant deux tampons trapézoïdaux, peut bien entendu être appliqué à des regards présentant des tamons de formes différentes.This device, which has been described in the context of its application to a manhole comprising two trapezoidal buffers, can of course be applied to manholes having tamons of different shapes.

Claims (1)

Dispositif de sécurité pour tampon articulé de regard de chaussée, du type composé, d'un levier de calage du tampon en position d'ouverture, articulé sur le cadre au dessous de l'articulation du tampon sur ce cadre et comportant une lumière apte à coopérer avec un doigt solidaire du tampon et, articulé à son extrémité libre, un crochet apte à coopérer avec le doigt précité, caractérisé en ce que l'axe d'articulation (7) du levier ( 12) sur le cadre (2) et constitué par l'axe d'articulation sur le cadre du corps (6a) d'un ressort à gaz, tandis que, d'une part, l'axe d'articulation (9) de la tige (6b) de ce ressort à gaz sur le tampon se prolonge, au-delà de la patte (10) du tampon sur laquelle il est fixé, pour former le doigt (9a), coopérant avec la lumière oblongue (13) du levier (12) et avec le crochet (14), et que d'autre part, le crochet (14) est pesant et est articulé à l'extrémité libre du levier (12) de manière que, en fin de mouvement d'ouverture et grâce au positionnement assuré par son propre poids, il s'accroche sous le doigt (9a) en formant moyen de calage automatique du tampon.Safety device for articulated pavement manhole cover, of the compound type, of a buffer setting lever in the open position, articulated on the frame below the articulation of the buffer on this frame and comprising a light capable of cooperate with a finger integral with the pad and, articulated at its free end, a hook capable of cooperating with the aforementioned finger, characterized in that the hinge pin (7) of the lever (12) on the frame (2) and constituted by the hinge pin on the body frame (6a) of a gas spring, while, on the one hand, the hinge pin (9) of the rod (6b) of this spring gas on the tampon extends, beyond the tab (10) of the tampon on which it is fixed, to form the finger (9a), cooperating with the oblong opening (13) of the lever (12) and with the hook ( 14), and that on the other hand, the hook (14) is heavy and is articulated at the free end of the lever (12) so that, at the end of the opening movement and thanks to the positioning ensured by its own weight, it hooks under the finger (9a) forming an automatic wedging means of the tampon.
EP92420105A 1991-04-05 1992-04-03 Safety device for hinged manhole cover Expired - Lifetime EP0507708B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104537A FR2674879B1 (en) 1991-04-05 1991-04-05 SECURITY DEVICE FOR ARTICULATED PAVEMENT OF LOOKING ROAD.
FR9104537 1991-04-05

Publications (2)

Publication Number Publication Date
EP0507708A1 true EP0507708A1 (en) 1992-10-07
EP0507708B1 EP0507708B1 (en) 1994-11-02

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ID=9411804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420105A Expired - Lifetime EP0507708B1 (en) 1991-04-05 1992-04-03 Safety device for hinged manhole cover

Country Status (5)

Country Link
EP (1) EP0507708B1 (en)
AT (1) ATE113681T1 (en)
DE (1) DE69200602T2 (en)
ES (1) ES2065766T3 (en)
FR (1) FR2674879B1 (en)

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GB2272236A (en) * 1992-11-07 1994-05-11 Frederick Jones & Son Improvements relating to pivotal covers
US5507590A (en) * 1994-08-04 1996-04-16 Argandona; Toby Cover assembly for manholes and the like
EP0985770A1 (en) * 1998-09-08 2000-03-15 Furnes-Hamjern SCC AS Manhole assembly for covering a well
GB2360807A (en) * 2000-04-01 2001-10-03 Atlanta Impex Ltd Access Cover Component and Assembly
EP1752584A2 (en) * 2005-08-02 2007-02-14 Atlanta Impex Limited Access cover
KR101188140B1 (en) 2011-05-12 2012-10-08 류순모 An apparatus for opening and shutting the manhole for escaping the fire place in the high building
KR101188141B1 (en) 2011-05-12 2012-10-08 류순모 An apparatus for opening and shutting the manhole for escaping the fire place in the high building
FR3095456A1 (en) * 2019-04-24 2020-10-30 Fonderies De Brousseval & Montreuil IMPROVED ROAD SYSTEM
FR3096377A1 (en) * 2019-05-24 2020-11-27 Fonderies De Brousseval & Montreuil IMPROVED SAFETY ROAD SYSTEM
EP4238886A4 (en) * 2021-09-29 2024-05-01 Contemporary Amperex Technology Co., Limited Gland anti-pinch device and apparatus having gland

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007128047A1 (en) * 2006-05-03 2007-11-15 R & S Grating A cover for a manhole
FR2943359B1 (en) * 2009-03-18 2016-01-22 Norinco SAFETY DEVICE FOR AT LEAST ONE BUFFER, IN PARTICULAR A PAVEMENT LOOK

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DE1231590B (en) * 1960-10-01 1966-12-29 Schierholz Kg Louis Device for locking the tilt sash of a window, in particular a window with a concrete frame
GB1180975A (en) * 1966-09-14 1970-02-11 Ford Motor Co Door Check Arms.
EP0391238A2 (en) * 1989-04-07 1990-10-10 Deere & Company Means for holding a pivoting panel

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GB897553A (en) * 1959-11-26 1962-05-30 Broads Mfg Company Ltd Counterbalanced access cover
DE8202626U1 (en) * 1982-02-02 1982-06-24 Neu, Karlheinz, 5810 Witten COVER FOR A MAN HOLE OR A SHAFT

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
DE1231590B (en) * 1960-10-01 1966-12-29 Schierholz Kg Louis Device for locking the tilt sash of a window, in particular a window with a concrete frame
GB1180975A (en) * 1966-09-14 1970-02-11 Ford Motor Co Door Check Arms.
EP0391238A2 (en) * 1989-04-07 1990-10-10 Deere & Company Means for holding a pivoting panel

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272236A (en) * 1992-11-07 1994-05-11 Frederick Jones & Son Improvements relating to pivotal covers
GB2272236B (en) * 1992-11-07 1996-05-01 Frederick Jones & Son Improvements relating to pivotal covers
US5507590A (en) * 1994-08-04 1996-04-16 Argandona; Toby Cover assembly for manholes and the like
EP0985770A1 (en) * 1998-09-08 2000-03-15 Furnes-Hamjern SCC AS Manhole assembly for covering a well
GB2360807A (en) * 2000-04-01 2001-10-03 Atlanta Impex Ltd Access Cover Component and Assembly
GB2360807B (en) * 2000-04-01 2004-03-31 Atlanta Impex Ltd A cover part for a cover and frame assembly,a cover for a cover and frame assembly and a cover and frame assembly
EP1752584A2 (en) * 2005-08-02 2007-02-14 Atlanta Impex Limited Access cover
GB2429228A (en) * 2005-08-02 2007-02-21 Atlanta Impex Ltd Ground surface access cover
EP1752584A3 (en) * 2005-08-02 2008-05-14 Atlanta Impex Limited Access cover
GB2429228B (en) * 2005-08-02 2011-03-30 Atlanta Impex Ltd Access cover
KR101188140B1 (en) 2011-05-12 2012-10-08 류순모 An apparatus for opening and shutting the manhole for escaping the fire place in the high building
KR101188141B1 (en) 2011-05-12 2012-10-08 류순모 An apparatus for opening and shutting the manhole for escaping the fire place in the high building
FR3095456A1 (en) * 2019-04-24 2020-10-30 Fonderies De Brousseval & Montreuil IMPROVED ROAD SYSTEM
FR3096377A1 (en) * 2019-05-24 2020-11-27 Fonderies De Brousseval & Montreuil IMPROVED SAFETY ROAD SYSTEM
EP4238886A4 (en) * 2021-09-29 2024-05-01 Contemporary Amperex Technology Co., Limited Gland anti-pinch device and apparatus having gland

Also Published As

Publication number Publication date
FR2674879A1 (en) 1992-10-09
ES2065766T3 (en) 1995-02-16
FR2674879B1 (en) 1995-08-04
DE69200602D1 (en) 1994-12-08
EP0507708B1 (en) 1994-11-02
ATE113681T1 (en) 1994-11-15
DE69200602T2 (en) 1995-03-23

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