EP0698692A1 - Cover for a fire hydrant shaft - Google Patents

Cover for a fire hydrant shaft Download PDF

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Publication number
EP0698692A1
EP0698692A1 EP95470030A EP95470030A EP0698692A1 EP 0698692 A1 EP0698692 A1 EP 0698692A1 EP 95470030 A EP95470030 A EP 95470030A EP 95470030 A EP95470030 A EP 95470030A EP 0698692 A1 EP0698692 A1 EP 0698692A1
Authority
EP
European Patent Office
Prior art keywords
cover
door according
guide rail
frame
pads
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
EP95470030A
Other languages
German (de)
French (fr)
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EP0698692B1 (en
Inventor
Joseph Zinsius
Gérard Lemoine
André Schneider
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.)
Pont a Mousson SA
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Pont a Mousson SA
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Publication date
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Publication of EP0698692A1 publication Critical patent/EP0698692A1/en
Application granted granted Critical
Publication of EP0698692B1 publication Critical patent/EP0698692B1/en
Anticipated expiration legal-status Critical
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

Definitions

  • the present invention relates to a hatch, in particular for technical fire hydrant inspection, of the type comprising a support frame delimiting a passage, and a removable closure cover.
  • These technical manholes can for example be constituted by sumps or wells for access to sewers, or also chests provided in the ground and adapted to receive valves or water intakes for firefighters, or the cleaning of gutters.
  • Such hatches generally comprise a frame, the walls of which define a passage, these walls being provided in their upper part with a peripheral support rib on which the edges of the cover rest in the closed position.
  • a hole is generally made in the cover, in order to introduce a gripping member therein in order to remove the cover.
  • the cover can be removed by lifting it and possibly sliding it along the peripheral rib in order to place it flat on the ground next to the frame.
  • the cover can be lost after its removal, or even be removed from the frame maliciously.
  • the support frame does not have a symmetrical periphery, it is difficult to determine the correct positioning of the cover thereon when it is replaced.
  • the indexing of the cover in the frame may be made compulsory by the presence inside the hatch of elements arranged in any way and which may interfere with the cover if the latter is incorrectly mounted.
  • the invention aims to remedy these drawbacks, by providing a hatch whose opening of the cover is possible, this cover being removable, although in operation it is integral with the support frame.
  • the invention relates to a hatch, of the aforementioned type, the frame of which comprises a guide rail on each of two side walls of the frame, and in that the cover comprises laterally on each side, two tracking pads guide rail including an upper shoe sliding on the upper face of the rail during the movements of opening by sliding forwards and closing by sliding towards the rear of the cover, and a lower shoe adapted to abut on the lower face of the rail if the cover is lifted in the at least partially open position.
  • the invention also relates to a frame and a cover for such a hatch.
  • the hatch 2 shown in the drawings is a chest for access to a fire valve. It comprises a support frame 4 and a shutter cover 6.
  • the support frame 4 made in one piece by a foundry process, has two walls side 8,10, roughly vertical and parallel, extending on either side of a median longitudinal plane P. These side walls 8,10 are connected to each other by two walls 12,14 extending approximately vertically, parallel to each other and orthogonally to the plane P to delimit a passage 16.
  • the walls 12 and 14 are the front and rear walls respectively, considering the direction of opening F1 indicated in Figures 1 and 2.
  • the height of the walls 8 to 14 is defined according to the use of the hatch, and these walls can be dimensioned so as to house a mechanical member, for example a valve bearing the reference K as is shown diagrammatically in FIG. 2.
  • the walls 8 to 14 are extended in their lower part by a peripheral flange 18 oriented towards the outside.
  • This peripheral flange 18 has sealing holes 20 of oblong shape distributed over the entire periphery of the frame.
  • Reinforcing gussets 22 connect the upper surface of the collar 18 to the side walls 8 to 14.
  • the inner faces of the walls 12,14, inside the passage 16, have in their upper parts support ribs 24,26 respectively, made of material and extending over the length of each wall.
  • the front rib 24 is extended on the side walls 8 and 10 by identical guide rails designated by the reference 28.
  • the rib 24 also has two identical notches 24A at each of its ends extended by the guide rails 28.
  • These guide rails 28 have the same thickness as the rib 24. They comprise from the rib 24, a first straight front portion 28A, extending parallel to the plane of the cover when the latter is in the closed position, extended by a portion 28B inclined backwards and downwards. These inclined portions 28B end in a release end denoted 28C, distant from the wall 14.
  • the rear rib 26 is extended on each of the side walls 8 and 10 by short portions of identical ribs 32 extended by two identical locking ribs 36 inclined downward and forward towards the release ends 28C, but stopping a short distance from them.
  • the rear rib 26 has two identical notches 26A at each of its ends extended by the portions of ribs 32. These notches 26A face the notches 24A of the front rib 24.
  • the cover 6 shown in each of the figures is made in one piece by a foundry process and has an outer periphery which fits together with a small peripheral clearance in the passage 16. It has a flat upper face 40 on which patterns are provided 42 in non-slip relief, as well as markings 44 which can for example indicate the nature of the elements located under the hatch, etc.
  • the cover 6 Along the edges of its lower face, the cover 6 has a peripheral bearing surface 46 extending parallel to the upper face 40.
  • the cover 6 On its lateral edges extending on either side of the plane P, the cover 6 comprises, near its rear end, inclined bearing surfaces 48 carried by triangular ribs 50 extending perpendicular to the plane of the cover d 'obturation 6. These inclined bearing surfaces 48 have an inclination equal to that of the inclined portions 28B of the guide rails.
  • the support legs 52 each have, at their lower end, a lower stop shoe 56, as well as an upper sliding shoe 58 formed above the stop shoe 56 and spaced therefrom. Between these two pads is a longitudinally arranged flat portion 59, the height of which is greater than the thickness of the guide rails and the longitudinal dimension of which is approximately four times greater than this height and is sufficient to oppose the withdrawal of the cover by rotation thereof when in the at least partially open position.
  • Two series of reinforcing ribs bearing the general reference 60 protrude orthogonally to one another on the underside of the cover 60.
  • Some of the longitudinal ribs have at their front end, arcuate clearance surfaces 62 having a curved profile, roughly in a quarter circle, with a large radius of curvature.
  • an orifice 64 for gripping the cover In this same front part of the cover is provided an orifice 64 for gripping the cover.
  • the bearing surfaces 46 of the cover rest on the upper faces of the support ribs 24 and 26, as well as on the upper faces of the straight portions 28A of the guide rails, thus forming support surfaces.
  • the surfaces inclined bearing surfaces 48 rest on the upper faces of the inclined portions 28B of the guide rails forming a support surface.
  • the cover 6 is adapted to withstand significant stresses due to the passage of heavy vehicles for example.
  • the support legs 52 overlap the release ends 28C of the guide rails 28 and the locking ribs 36.
  • the sliding pad 58 is partially below the lower end of the locking rib 36 and partially above the release end 28C, while the abutment pad 56 is partially below each of these elements.
  • the distance between the lower part of the sliding pad 58 and the upper face 40 of the cover 6 is less than the sum of the maximum thickness of the cover and the distance between the upper face of the front part of the guide rail and the surface of a roadway S surrounding the support frame, this surface flush with the upper surface of the frame.
  • the distance between the upper part of the stop pads 56 and the upper face of the cover is greater than the sum of the maximum thickness of the cover and the distance between the lower surface of the front part of the guide rail and the pavement surface S surrounding the support frame.
  • the cover can be placed flat on the surface of the roadway S, as shown in FIG. 4.
  • the clearance surfaces 62 having a large radius of curvature, guarantee the non-deterioration of the roadway when the cover slides on the surface thereof and an easy replacement of the cover by a passage easy clearance surfaces 62 above the edge of the frame and the support rib 24. They also guarantee at the end of closing an inclined position of the cover sufficient to avoid contact between the ribs 60 and the upper parts of the valve K .
  • Disassembly of the removable cover 6 is made difficult for an inexperienced and unequipped person, thanks to the locking rib 36. Indeed, if one seeks to lift the cover upwards while it is in the position of obturation, the upper sliding pads 58 strike the lower end of the inclined locking ribs 36, which form with the release ends 28C of the guide rails a baffle for the pads 56 and 58.
  • the distance between the release end 28C and the lower end of the locking rib 36 is adjusted to allow successive passages of the pads 56 and 58 with very little play, following a predetermined approximately rectilinear trajectory.
  • the orientation of the locking ribs 36 and the inclined portions 28B it is practically impossible to extract the cover by seeking to move the pads along this same path but in an opposite direction. Indeed, the weight of the cover and the absence of visibility makes the operation very delicate.
  • Such a lock makes it possible to lock the cover 6 on the support frame 4, thus making it impossible to open and remove the cover when the lock is locked.

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  • Engineering & Computer Science (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)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Temperature-Responsive Valves (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Glass Compositions (AREA)
  • Taps Or Cocks (AREA)
  • Replacement Of Web Rolls (AREA)
  • Special Wing (AREA)
  • Ladders (AREA)
  • Lubricants (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Sewage (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The cover (6) is surrounded by a supporting frame (4) with guide rails (8) along two opposite side walls. The cover has upper (58) and lower (56) lugs on each side to engage with the guide rails, mounted on supporting legs (52) extending from the cover's lower surface and perpendicular to it. Each leg has a flat section (59) which prevents any pivoting of the cover as it is raised or closed. Each guide rail has a rear section (28C) which frees the cover, while each of the frame's opposite side walls has a locking rib (36) which is situated at least partially above the upper lug forming a chicane for the lugs to pass through.

Description

La présente invention concerne une trappe, notamment pour regard technique de bouche d'incendie, du type comportant un cadre de support délimitant un passage, et un couvercle d'obturation amovible.The present invention relates to a hatch, in particular for technical fire hydrant inspection, of the type comprising a support frame delimiting a passage, and a removable closure cover.

Il est fréquemment nécessaire de devoir ménager dans la surface du sol, par exemple dans la surface d'une chaussée, des passages permettant l'accès à des regards techniques.It is frequently necessary to have to provide in the surface of the ground, for example in the surface of a roadway, passages allowing access to technical manholes.

Ces regards techniques peuvent par exemple être constitués par des puisards ou des puits d'accès aux égouts, ou encore des coffres ménagés dans le sol et adaptés pour recevoir des vannes ou des prises d'eau pour les pompiers, ou le nettoyage des caniveaux.These technical manholes can for example be constituted by sumps or wells for access to sewers, or also chests provided in the ground and adapted to receive valves or water intakes for firefighters, or the cleaning of gutters.

De telles trappes comportent généralement un cadre dont les parois délimitent un passage, ces parois étant munies dans leur partie supérieure d'une nervure périphérique de support sur laquelle s'appuient les bords du couvercle en position d'obturation. Un trou est généralement ménagé dans le couvercle, afin d'y introduire un organe de préhension en vue du retrait du couvercle.Such hatches generally comprise a frame, the walls of which define a passage, these walls being provided in their upper part with a peripheral support rib on which the edges of the cover rest in the closed position. A hole is generally made in the cover, in order to introduce a gripping member therein in order to remove the cover.

Une fois cet organe introduit, le couvercle peut être retiré en le soulevant et en le faisant éventuellement glisser le long de la nervure périphérique afin de le déposer à plat sur le sol à coté du cadre.Once this member is inserted, the cover can be removed by lifting it and possibly sliding it along the peripheral rib in order to place it flat on the ground next to the frame.

De tels dispositifs présentent certains inconvénients.Such devices have certain drawbacks.

En effet, le couvercle peut être égaré après son retrait, ou encore être retiré du cadre de façon malveillante.Indeed, the cover can be lost after its removal, or even be removed from the frame maliciously.

De plus, si le cadre de support n'a pas un pourtour symétrique, il est difficile de déterminer le bon positionnement du couvercle sur celui-ci lors de sa remise en place.In addition, if the support frame does not have a symmetrical periphery, it is difficult to determine the correct positioning of the cover thereon when it is replaced.

Dans d'autres cas, l'indexation du couvercle dans le cadre peut être rendue obligatoire par la présence à l'intérieur de la trappe d'éléments disposés de manière quelconque et pouvant interférer avec le couvercle si celui-ci est mal monté.In other cases, the indexing of the cover in the frame may be made compulsory by the presence inside the hatch of elements arranged in any way and which may interfere with the cover if the latter is incorrectly mounted.

L'invention a pour but de remédier à ces inconvénients, en fournissant une trappe dont l'ouverture du couvercle est possible, ce couvercle étant amovible, bien qu'en fonctionnement il soit solidaire du cadre du support.The invention aims to remedy these drawbacks, by providing a hatch whose opening of the cover is possible, this cover being removable, although in operation it is integral with the support frame.

A cet effet, l'invention a pour objet une trappe, du type précité, dont le cadre comporte un rail de guidage sur chacune de deux parois latérales du cadre, et en ce que le couvercle comporte latéralement de chaque côté, deux patins de suivi de rail de guidage dont un patin supérieur glissant sur la face supérieure du rail lors des mouvements d'ouverture par glissement vers l'avant et de fermeture par glissement vers l'arrière du couvercle, et un patin inférieur adapté pour buter sur la face inférieure du rail en cas de soulèvement du couvercle en position d'ouverture au moins partielle de celui-ci.To this end, the invention relates to a hatch, of the aforementioned type, the frame of which comprises a guide rail on each of two side walls of the frame, and in that the cover comprises laterally on each side, two tracking pads guide rail including an upper shoe sliding on the upper face of the rail during the movements of opening by sliding forwards and closing by sliding towards the rear of the cover, and a lower shoe adapted to abut on the lower face of the rail if the cover is lifted in the at least partially open position.

Suivant des modes particuliers de réalisation, l'invention peut présenter une ou plusieurs des caractéristiques suivantes :

  • les patins sont ménagés sur des jambes de support s'étendant au-dessous de la face inférieure du couvercle et perpendiculairement à celle-ci, latéralement de chaque côté.
  • les jambes de support comportent en regard des rails de guidage, une portion plane s'étendant longitudinalement, afin d'interdire tout pivotement notable du couvercle.
  • chaque rail de guidage comporte une extrémité arrière de libération du couvercle et chaque paroi latérale comporte à l'arrière une nervure de blocage disposée au moins partiellement au-dessus du patin supérieur lorsque celui-ci se trouve au-delà de l'extrémité de libération du couvercle, cette extrémité de libération et la nervure de blocage délimitant une chicane de passage pour les patins du couvercle.
  • la nervure de blocage a une forme allongée et est inclinée vers le bas et vers l'avant en direction de ladite extrémité de libération.
  • le couvercle comporte, dans sa partie avant, une serrure de verrouillage du couvercle par rapport au cadre en position d'obturation, dont le pêne est adapté pour coopérer avec une surface de retenue ménagée dans une paroi du cadre.
  • chaque rail de guidage comporte une portion avant rectiligne parallèle au plan du couvercle en position d'obturation, et une portion arrière inclinée vers le bas et vers l'arrière depuis la portion rectiligne, jusqu'à l'extrémité de libération du couvercle.
  • les patins sont au moins partiellement au-delà de l'extrémité de libération du couvercle lorsque le couvercle est en position d'obturation.
  • chaque rail de guidage comporte une surface de support du couvercle lorsque celui-ci est en position d'obturation.
  • le couvercle comporte sur chaque bord latéral de sa face inférieure une surface d'appui inclinée, adaptée pour coopérer avec la face supérieure de la portion inclinée du rail de guidage formant surface de support.
  • chaque patin supérieur est placé à une distance de la face supérieure du couvercle qui est inférieure à la somme de l'épaisseur maximale du couvercle et de la distance entre la face supérieure de la partie avant du rail de guidage et la surface du sol entourant le cadre de support, et le patin inférieur est placé à une distance de la face supérieure du couvercle qui est supérieure à la somme de l'épaisseur maximale du couvercle et de la distance entre la face inférieure de la partie avant du rail de guidage et ladite surface du sol, afin que le couvercle puisse reposer sur ladite surface dans sa position d'ouverture maximale.
  • le couvercle comporte, sur la partie avant de sa face inférieure, des surfaces de dégagement arquées.
  • les patins sont disposés près de l'extrémité arrière du couvercle suivant le sens d'ouverture de celui-ci.
  • le couvercle et le cadre de support sont réalisés tous deux d'une seule pièce par un procédé de fonderie.
According to particular embodiments, the invention may have one or more of the following characteristics:
  • the pads are formed on support legs extending below the underside of the cover and perpendicular thereto, laterally on each side.
  • the support legs comprise, opposite the guide rails, a flat portion extending longitudinally, in order to prohibit any significant pivoting of the cover.
  • each guide rail has a rear end for releasing the cover and each side wall has at the rear a blocking rib disposed at least partially above the upper shoe when the latter is beyond the end of release of the cover, this release end and the locking rib delimiting a passage baffle for the shoes of the cover.
  • the locking rib has an elongated shape and is inclined downward and forward towards said release end.
  • the cover comprises, in its front part, a lock for locking the cover relative to the frame in the closed position, the bolt of which is adapted to cooperate with a retaining surface formed in a wall of the frame.
  • each guide rail comprises a rectilinear front portion parallel to the plane of the cover in the closed position, and a rear portion inclined downwards and backwards from the rectilinear portion, to the release end of the cover.
  • the pads are at least partially beyond the release end of the cover when the cover is in the closed position.
  • each guide rail has a support surface for the cover when the latter is in the closed position.
  • the cover comprises on each lateral edge of its lower face an inclined bearing surface, adapted to cooperate with the upper face of the inclined portion of the guide rail forming a support surface.
  • each upper shoe is placed at a distance from the upper face of the cover which is less than the sum of the maximum thickness of the cover and the distance between the upper face of the front part of the guide rail and the ground surface surrounding the support frame, and the lower shoe is placed at a distance from the upper face of the cover which is greater than the sum of the maximum thickness of the cover and the distance between the underside of the front part of the guide rail and said ground surface, so that the cover can rest on said surface in its maximum open position.
  • the cover comprises, on the front part of its lower face, arcuate release surfaces.
  • the pads are arranged near the rear end of the cover in the opening direction thereof.
  • the cover and the support frame are both made in one piece by a foundry process.

L'invention a également pour objets un cadre et un couvercle pour une telle trappe.The invention also relates to a frame and a cover for such a hatch.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels :

  • la Fig.1 est une vue de dessus en élévation d'une trappe selon l'invention, le couvercle ayant été représenté pour moitié en position d'obturation et pour moitié en position d'ouverture;
  • la Fig.2 est une vue en coupe suivant la ligne II-II de la figure 1, le couvercle étant en position d'obturation;
  • la Fig.3 est une vue en coupe suivant la ligne III-III de la figure 2; et
  • la Fig.4 est une vue en coupe suivant la ligne II-II de la figure 1, le couvercle étant en position d'ouverture.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the appended drawings, in which:
  • Fig.1 is a top view in elevation of a hatch according to the invention, the cover having been shown half in the closed position and half in the open position;
  • Fig.2 is a sectional view along line II-II of Figure 1, the cover being in the closed position;
  • Fig.3 is a sectional view along line III-III of Figure 2; and
  • Fig.4 is a sectional view along line II-II of Figure 1, the cover being in the open position.

La trappe 2 représentée aux dessins est un coffre d'accès à une vanne d'incendie. Elle comporte un cadre de support 4 et un couvercle d'obturation 6.The hatch 2 shown in the drawings is a chest for access to a fire valve. It comprises a support frame 4 and a shutter cover 6.

Le cadre de support 4, réalisé en une seule pièce par un procédé de fonderie, comporte deux parois latérales 8,10, à peu près verticales et parallèles, s'étendant de part et d'autre d'un plan longitudinal médian P. Ces parois latérales 8,10 sont reliées l'une à l'autre par deux parois 12,14 s'étendant à peu près verticalement, parallèlement l'une à l'autre et orthogonalement au plan P pour délimiter un passage 16. Les parois 12 et 14 sont respectivement les parois avant et arrière, en considérant le sens d'ouverture F1 indiqué aux figures 1 et 2.The support frame 4, made in one piece by a foundry process, has two walls side 8,10, roughly vertical and parallel, extending on either side of a median longitudinal plane P. These side walls 8,10 are connected to each other by two walls 12,14 extending approximately vertically, parallel to each other and orthogonally to the plane P to delimit a passage 16. The walls 12 and 14 are the front and rear walls respectively, considering the direction of opening F1 indicated in Figures 1 and 2.

La hauteur des parois 8 à 14 est définie en fonction de l'utilisation de la trappe, et ces parois peuvent être dimensionnées de manière à abriter un organe mécanique, par exemple une vanne portant la référence K comme cela est schématisé sur la figure 2.The height of the walls 8 to 14 is defined according to the use of the hatch, and these walls can be dimensioned so as to house a mechanical member, for example a valve bearing the reference K as is shown diagrammatically in FIG. 2.

Comme cela est visible également sur les figures 2 à 4, les parois 8 à 14 se prolongent dans leur partie inférieure par une collerette périphérique 18 orientée vers l'extérieur. Cette collerette périphérique 18 comporte des trous de scellement 20 de forme oblongue répartis sur toute la périphérie du cadre.As can also be seen in FIGS. 2 to 4, the walls 8 to 14 are extended in their lower part by a peripheral flange 18 oriented towards the outside. This peripheral flange 18 has sealing holes 20 of oblong shape distributed over the entire periphery of the frame.

Des goussets 22 de renfort relient la surface supérieure de la collerette 18 aux parois latérales 8 à 14.Reinforcing gussets 22 connect the upper surface of the collar 18 to the side walls 8 to 14.

Les faces intérieures des parois 12,14, à l'intérieur du passage 16, comportent dans leurs parties supérieures des nervures de support 24,26 respectivement, venues de matière et s'étendant sur la longueur de chaque paroi. La nervure avant 24 se prolonge sur les parois latérales 8 et 10 par des rails de guidage identiques désignés par la référence 28. La nervure 24 comporte également deux encoches identiques 24A à chacune de ses extrémités prolongées par les rails de guidage 28.The inner faces of the walls 12,14, inside the passage 16, have in their upper parts support ribs 24,26 respectively, made of material and extending over the length of each wall. The front rib 24 is extended on the side walls 8 and 10 by identical guide rails designated by the reference 28. The rib 24 also has two identical notches 24A at each of its ends extended by the guide rails 28.

Ces rails de guidage 28 ont la même épaisseur que la nervure 24. Ils comportent depuis la nervure 24, une première portion avant 28A rectiligne, s'étendant parallèlement au plan du couvercle lorsque celui-ci est en position d'obturation, prolongée par une portion 28B inclinée vers l'arrière et vers le bas. Ces portions inclinées 28B se terminent par une extrémité de libération notée 28C, distante de la paroi 14.These guide rails 28 have the same thickness as the rib 24. They comprise from the rib 24, a first straight front portion 28A, extending parallel to the plane of the cover when the latter is in the closed position, extended by a portion 28B inclined backwards and downwards. These inclined portions 28B end in a release end denoted 28C, distant from the wall 14.

De même, la nervure arrière 26 se prolonge sur chacune des parois latérales 8 et 10 par de courtes portions de nervures identiques 32 prolongées par deux nervures de blocage identiques 36 inclinées vers le bas et vers l'avant en direction des extrémités de libération 28C, mais s'arrêtant à une petite distance de celles-ci.Likewise, the rear rib 26 is extended on each of the side walls 8 and 10 by short portions of identical ribs 32 extended by two identical locking ribs 36 inclined downward and forward towards the release ends 28C, but stopping a short distance from them.

De plus, la nervure arrière 26 comporte deux encoches identiques 26A à chacune de ses extrémités prolongées par les portions de nervures 32. Ces encoches 26A font face aux encoches 24A de la nervure avant 24.In addition, the rear rib 26 has two identical notches 26A at each of its ends extended by the portions of ribs 32. These notches 26A face the notches 24A of the front rib 24.

Le couvercle 6 représenté sur chacune des figures est réalisé en une seule pièce par un procédé de fonderie et a un pourtour extérieur s'emboîtant avec un petit jeu périphérique dans le passage 16. Il comporte une face supérieure 40 plane sur laquelle sont ménagés des motifs 42 en relief antidérapants, ainsi que des marquages 44 pouvant par exemple indiquer la nature des éléments se trouvant sous la trappe, etc.The cover 6 shown in each of the figures is made in one piece by a foundry process and has an outer periphery which fits together with a small peripheral clearance in the passage 16. It has a flat upper face 40 on which patterns are provided 42 in non-slip relief, as well as markings 44 which can for example indicate the nature of the elements located under the hatch, etc.

Suivant les bords de sa face inférieure, le couvercle 6 comporte une surface d'appui périphérique 46 s'étendant parallèlement à la face supérieure 40.Along the edges of its lower face, the cover 6 has a peripheral bearing surface 46 extending parallel to the upper face 40.

Sur ses bords latéraux s'étendant de part et d'autre du plan P, le couvercle 6 comporte, près de son extrémité arrière, des surfaces d'appui inclinées 48 portées par des nervures triangulaires 50 s'étendant perpendiculairement au plan du couvercle d'obturation 6. Ces surfaces d'appui inclinées 48 présentent une inclinaison égale à celle des portions inclinées 28B des rails de guidage.On its lateral edges extending on either side of the plane P, the cover 6 comprises, near its rear end, inclined bearing surfaces 48 carried by triangular ribs 50 extending perpendicular to the plane of the cover d 'obturation 6. These inclined bearing surfaces 48 have an inclination equal to that of the inclined portions 28B of the guide rails.

Au-delà des nervures triangulaires 50, vers l'arrière, sont ménagées dans la partie arrière du couvercle des jambes de support 52 qui s'étendent longitudinalement, c'est à dire parallèlement au plan P, de chaque côté et au-dessous du couvercle 6 le long de la surface d'appui périphérique 46. Ces jambes de support 52 comportent sur leur face intérieure des goussets de renfort 54 reliés à la face inférieure du couvercle.Beyond the triangular ribs 50, towards the rear, are formed in the rear part of the cover of the support legs 52 which extend longitudinally, that is to say parallel to the plane P, on each side and below the cover 6 along the peripheral support surface 46. These support legs 52 have on their inner face reinforcement gussets 54 connected to the underside of the cover.

Sur leur face extérieure, les jambes de support 52 comportent chacune, à leur extrémité inférieure, un patin inférieur de butée 56, ainsi qu'un patin supérieur de glissement 58 ménagé au-dessus du patin de butée 56 et espacé de celui-ci. Entre ces deux patins est ménagée longitudinalement une portion plane 59 étendue, dont la hauteur est supérieure à l'épaisseur des rails de guidage et dont la dimension longitudinale est environ quatre fois plus élevée que cette hauteur et est suffisante pour s'opposer au retrait du couvercle par rotation de celui-ci lorsqu'il est en position au moins partiellement ouverte.On their outer face, the support legs 52 each have, at their lower end, a lower stop shoe 56, as well as an upper sliding shoe 58 formed above the stop shoe 56 and spaced therefrom. Between these two pads is a longitudinally arranged flat portion 59, the height of which is greater than the thickness of the guide rails and the longitudinal dimension of which is approximately four times greater than this height and is sufficient to oppose the withdrawal of the cover by rotation thereof when in the at least partially open position.

Deux séries de nervures de renfort portant la référence générale 60 font saillie orthogonalement les unes aux autres sur la face inférieure du couvercle 60. Certaines des nervures longitudinales présentent à leur extrémité avant, des surfaces de dégagement arquées 62 ayant un profil courbe, à peu près en quart de cercle, avec un rayon de courbure important.Two series of reinforcing ribs bearing the general reference 60 protrude orthogonally to one another on the underside of the cover 60. Some of the longitudinal ribs have at their front end, arcuate clearance surfaces 62 having a curved profile, roughly in a quarter circle, with a large radius of curvature.

Dans cette même partie avant du couvercle est ménagé un orifice 64 de préhension du couvercle.In this same front part of the cover is provided an orifice 64 for gripping the cover.

Sur la figure 2, le couvercle a été représenté dans sa position d'obturation.In Figure 2, the cover has been shown in its closed position.

Dans cette position, les surfaces d'appui 46 du couvercle reposent sur les faces supérieures des nervures de support 24 et 26, ainsi que sur les faces supérieures des portions rectilignes 28A des rails de guidage formant ainsi des surfaces de support. De même, les surfaces d'appui inclinées 48 reposent sur les faces supérieures des portions inclinées 28B des rails de guidage formant surface de support.In this position, the bearing surfaces 46 of the cover rest on the upper faces of the support ribs 24 and 26, as well as on the upper faces of the straight portions 28A of the guide rails, thus forming support surfaces. Likewise, the surfaces inclined bearing surfaces 48 rest on the upper faces of the inclined portions 28B of the guide rails forming a support surface.

Ainsi, en position d'obturation, le couvercle 6 est adapté pour résister à des contraintes importantes dues au passage de véhicules lourds par exemple.Thus, in the closed position, the cover 6 is adapted to withstand significant stresses due to the passage of heavy vehicles for example.

Dans la position d'obturation, en vue latérale (Fig.2), les jambes de support 52 chevauchent les extrémités de libération 28C des rails de guidage 28 et les nervures de blocage 36. En particulier, de chaque côté, le patin de glissement 58 se trouve partiellement au-dessous de l'extrémité inférieure de la nervure de blocage 36 et partiellement au-dessus de l'extrémité de libération 28C, tandis que le patin de butée 56 se trouve partiellement au-dessous de chacun de ces éléments.In the closed position, in lateral view (FIG. 2), the support legs 52 overlap the release ends 28C of the guide rails 28 and the locking ribs 36. In particular, on each side, the sliding pad 58 is partially below the lower end of the locking rib 36 and partially above the release end 28C, while the abutment pad 56 is partially below each of these elements.

Afin de procéder à l'ouverture du couvercle, un opérateur introduit dans l'orifice de préhension 64 un outil adapté lui permettant de dégager l'extrémité du couvercle 6 munie de cet orifice du cadre 4 de support, jusqu'à ce que les nervures de renfort 60 entourant les parties en saillie de la vanne K se trouvent au-dessus de celle-ci. Ce dégagement de l'extrémité avant du couvercle 6 conduit les patins de butée 56 à s'engager au-dessous des rails de guidage 28, alors que les patins de glissement 58 s'engagent au-dessus de la face supérieure des rails de guidage.In order to open the cover, an operator introduces into the grip hole 64 a suitable tool allowing him to free the end of the cover 6 provided with this hole from the support frame 4, until the ribs reinforcement 60 surrounding the projecting parts of the valve K are located above the latter. This release of the front end of the cover 6 causes the stop pads 56 to engage below the guide rails 28, while the slide pads 58 engage above the upper face of the guide rails .

Après ce dégagement, la traction du couvercle 6 suivant le sens de la flèche F1 représentée sur la figure 2, correspondant au sens d'ouverture, permet le glissement du couvercle 6 par rapport au cadre de support 4. Les patins de glissement 58 reposent alors sur les faces supérieures des portions inclinées 28B des rails de guidage, conduisant à un relèvement progressif du couvercle 6 par rapport au cadre de support 4. Lorsque les patins de glissement 58 atteignent les portions rectilignes 28A des rails de guidage, ces patins continuent à glisser sur les faces supérieures de ces portions rectilignes jusqu'à ce que le couvercle 6 se trouve dans la position d'ouverture maximale représentée sur la figure 4. Dans cette position d'ouverture maximale, l'extrémité avant des jambes de support 52 se trouve dans les encoches 24A ménagées dans la nervure 24 permettant une ouverture importante du couvercle.After this release, the traction of the cover 6 in the direction of the arrow F1 shown in FIG. 2, corresponding to the opening direction, allows the cover 6 to slide relative to the support frame 4. The sliding pads 58 then rest on the upper faces of the inclined portions 28B of the guide rails, leading to a progressive raising of the cover 6 relative to the support frame 4. When the sliding pads 58 reach the straight portions 28A of the guide rails, these pads continue to slide on the upper faces of these rectilinear portions until the cover 6 is in the maximum open position shown in FIG. 4. In this maximum open position, the front end of the support legs 52 is located in the notches 24A formed in the rib 24 allowing a significant opening of the cover.

Dans le mode de réalisation représenté sur les figures, la distance entre la partie inférieure du patin de glissement 58 et la face supérieure 40 du couvercle 6 est inférieure à la somme de l'épaisseur maximale du couvercle et de la distance entre la face supérieure de la partie avant du rail de guidage et la surface d'une chaussée S entourant le cadre de support, cette surface affleurant la surface supérieure du cadre. De plus, la distance entre la partie supérieure des patins de butée 56 et la face supérieure du couvercle est supérieure à la somme de l'épaisseur maximale du couvercle et de la distance entre la surface inférieure de la partie avant du rail de guidage et la surface de la chaussée S entourant le cadre de support.In the embodiment shown in the figures, the distance between the lower part of the sliding pad 58 and the upper face 40 of the cover 6 is less than the sum of the maximum thickness of the cover and the distance between the upper face of the front part of the guide rail and the surface of a roadway S surrounding the support frame, this surface flush with the upper surface of the frame. In addition, the distance between the upper part of the stop pads 56 and the upper face of the cover is greater than the sum of the maximum thickness of the cover and the distance between the lower surface of the front part of the guide rail and the pavement surface S surrounding the support frame.

Ainsi, le couvercle peut être déposé à plat sur la surface de la chaussée S, comme cela est représenté sur la figure 4.Thus, the cover can be placed flat on the surface of the roadway S, as shown in FIG. 4.

Il est à noter que dès que les patins de butée 56 sont engagés sous les rails de guidage 28,30, il est impossible de retirer le couvercle d'obturation 6 du cadre de support 4. En effet, si l'on tente de soulever le couvercle 6 pour le retirer, les patins inférieurs 56 de butée butent sur la face inférieure des rails de guidage, interdisant le retrait. De plus, si l'on tente de faire pivoter le couvercle 6 autour d'un axe vertical, pour dégager les patins des rails, les portions planes étendues 59 des jambes de support 52 viennent en contact avec les bords internes des rails, interdisant tout pivotement notable et s'opposant donc au retrait du couvercle.It should be noted that as soon as the stop pads 56 are engaged under the guide rails 28.30, it is impossible to remove the closure cover 6 from the support frame 4. In fact, if an attempt is made to lift the cover 6 for removing it, the lower stop pads 56 abut on the underside of the guide rails, preventing removal. In addition, if an attempt is made to pivot the cover 6 around a vertical axis, in order to release the pads from the rails, the extended flat portions 59 of the support legs 52 come into contact with the internal edges of the rails, preventing any significant pivoting and therefore opposing the removal of the cover.

Ainsi, dès le commencement de l'ouverture de la trappe, il est impossible de retirer et donc de perdre ou de voler le couvercle d'obturation.Thus, from the beginning of the opening of the hatch, it is impossible to remove and therefore lose or steal the shutter cover.

Pour refermer le couvercle d'obturation, il suffit de repousser celui-ci dans le sens opposé à celui de la flèche F1, par exemple par une poussée parallèle à la surface de la chaussée par l'intermédiaire du pied d'un opérateur.To close the shutter cover, simply push it in the opposite direction to that of the arrow F1, for example by a push parallel to the surface of the floor through the foot of an operator.

Grâce à cette poussée, les patins de glissement 58 suivent les faces supérieures des rails de guidage 28 jusqu'à ce que le couvercle soit en position d'obturation comme cela est représenté sur la figure 2. L'extrémité arrière des jambes de support 52 se trouve alors partiellement dans les encoches 26A des nervures 26.With this thrust, the sliding pads 58 follow the upper faces of the guide rails 28 until the cover is in the closed position as shown in Figure 2. The rear end of the support legs 52 is then partially in the notches 26A of the ribs 26.

Lors de cette phase de fermeture, les surfaces de dégagement 62 présentant un rayon de courbure important, garantissent la non-détérioration de la chaussée lors du glissement du couvercle sur la surface de celle-ci et une remise en place aisée du couvercle par un passage facile des surfaces de dégagement 62 au-dessus du bord du cadre et de la nervure de support 24. Elles garantissent également en fin de fermeture une position inclinée du couvercle suffisante pour éviter le contact entre les nervures 60 et les parties supérieures de la vanne K.During this closing phase, the clearance surfaces 62 having a large radius of curvature, guarantee the non-deterioration of the roadway when the cover slides on the surface thereof and an easy replacement of the cover by a passage easy clearance surfaces 62 above the edge of the frame and the support rib 24. They also guarantee at the end of closing an inclined position of the cover sufficient to avoid contact between the ribs 60 and the upper parts of the valve K .

Le démontage du couvercle amovible 6 est rendu difficile à une personne non expérimentée et non équipée, grâce à la nervure de blocage 36. En effet, si l'on cherche à soulever vers le haut le couvercle alors qu'il est en position d'obturation, les patins supérieurs de glissement 58 heurtent l'extrémité inférieure des nervures de blocage inclinées 36, qui forment avec les extrémités de libération 28C des rails de guidage une chicane pour les patins 56 et 58.Disassembly of the removable cover 6 is made difficult for an inexperienced and unequipped person, thanks to the locking rib 36. Indeed, if one seeks to lift the cover upwards while it is in the position of obturation, the upper sliding pads 58 strike the lower end of the inclined locking ribs 36, which form with the release ends 28C of the guide rails a baffle for the pads 56 and 58.

Afin de retirer le couvercle 6, il est nécessaire de soulever le couvercle 6 par introduction d'un outil adapté dans l'orifice de préhension 64, puis de dégager légèrement le couvercle dans le sens de la flèche F1, et d'insérer ensuite un second outil de préhension adapté, par exemple un tournevis, au-dessous de la surface d'appui arrière 46 située à l'opposé de cet orifice de préhension. Ce second outil de préhension permet de soulever vers le haut la partie du couvercle 6 proche des patins.In order to remove the cover 6, it is necessary to lift the cover 6 by inserting a suitable tool into the gripping orifice 64, then slightly release the cover in the direction of the arrow F1, and then insert a second adapted gripping tool, for example a screwdriver, below the rear bearing surface 46 located opposite this gripping orifice. This second gripping tool makes it possible to lift upwards the part of the cover 6 close to the pads.

Il est alors possible par soulèvement simultané vers le haut des deux extrémités du couvercle, de dégager les patins de glissement 58 des faces supérieures des portions inclinée 28B des rails de guidage 28, puis, par déplacement du couvercle dans le sens opposé à celui de la flèche F1, de déplacer les patins de glissement 58 au-dessus des nervures de blocage 36.It is then possible by simultaneously lifting up the two ends of the cover, to disengage the sliding pads 58 from the upper faces of the inclined portions 28B of the guide rails 28, then, by moving the cover in the opposite direction to that of the arrow F1, to move the sliding pads 58 above the locking ribs 36.

En continuant de lever le couvercle 6, et en redéplaçant le couvercle dans le sens de la flèche F1, il est alors possible de dégager le patin de butée 56 au-dessus des portions inclinées 28B des rails de guidage. Il est alors possible de retirer complètement le couvercle 6 du cadre de support 4.By continuing to lift the cover 6, and by re-moving the cover in the direction of the arrow F1, it is then possible to release the abutment pad 56 above the inclined portions 28B of the guide rails. It is then possible to completely remove the cover 6 from the support frame 4.

On comprend que le retrait du couvercle du cadre de support est relativement difficile puisqu'il nécessite l'utilisation de deux outils et un enchaînement d'étapes nécessitant une bonne connaissance du dispositif.It is understood that removing the cover from the support frame is relatively difficult since it requires the use of two tools and a series of steps requiring good knowledge of the device.

Pour remettre en place le couvercle 6 sur le cadre de support 4, il suffit de placer le couvercle dans sa position d'ouverture, le dessous des patins inférieurs 56 reposant sur la face supérieure des rails de guidage 28 puis de pousser dans le sens inverse à celui de la flèche F1 jusqu'à ce que le couvercle prenne sa position d'obturation, les patins 56 et 58 franchissant successivement les extrémités de libération 28C guidées par les portions inclinées 28B.To replace the cover 6 on the support frame 4, simply place the cover in its open position, the underside of the lower pads 56 resting on the upper face of the guide rails 28 then push in the opposite direction to that of arrow F1 until the cover takes its closed position, the pads 56 and 58 successively crossing the release ends 28C guided by the inclined portions 28B.

On notera que la distance entre l'extrémité de libération 28C et l'extrémité inférieure de la nervure de blocage 36 est ajustée pour permettre les passages successifs des patins 56 et 58 avec un très faible jeu, suivant une trajectoire déterminée à peu près rectiligne. De plus, du fait de l'orientation des nervures de blocage 36 et des portions inclinées 28B, il est pratiquement impossible d'extraire le couvercle en cherchant à déplacer les patins suivant cette même trajectoire mais dans un sens opposé. En effet, le poids du couvercle et l'absence de visibilité rend l'opération très délicate.It will be noted that the distance between the release end 28C and the lower end of the locking rib 36 is adjusted to allow successive passages of the pads 56 and 58 with very little play, following a predetermined approximately rectilinear trajectory. In addition, due to the orientation of the locking ribs 36 and the inclined portions 28B, it is practically impossible to extract the cover by seeking to move the pads along this same path but in an opposite direction. Indeed, the weight of the cover and the absence of visibility makes the operation very delicate.

Pour retirer le couvercle, il est donc nécessaire de suivre la procédure expliquée plus haut et consistant à effectuer un mouvement de va et vient en soulevant le couvercle.To remove the cover, it is therefore necessary to follow the procedure explained above and consisting of performing a back and forth movement by lifting the cover.

Suivant un mode de réalisation non représenté sur les figures, il est possible de fixer au-dessous de l'orifice de préhension 64 une serrure de verrouillage dont le pêne est adapté pour coopérer avec la face inférieure de la nervure de support 24, formant une surface de retenue.According to an embodiment not shown in the figures, it is possible to fix below the gripping orifice 64 a locking lock whose bolt is adapted to cooperate with the underside of the support rib 24, forming a retaining surface.

Une telle serrure permet de verrouiller le couvercle 6 sur le cadre de support 4, rendant alors impossible l'ouverture et le retrait du couvercle lorsque la serrure est verrouillée.Such a lock makes it possible to lock the cover 6 on the support frame 4, thus making it impossible to open and remove the cover when the lock is locked.

Claims (16)

Trappe, notamment pour regard technique de bouche d'incendie, du type comportant un cadre (4) de support délimitant un passage (16), et un couvercle (6) d'obturation amovible, caractérisée en ce que le cadre (4) comporte un rail de guidage (28) sur chacune de deux parois latérales (8,10) du cadre, et en ce que le couvercle (6) comporte latéralement de chaque côté, deux patins (56,58) de suivi du rail de guidage (28), dont un patin supérieur (58) glissant sur la face supérieure du rail lors des mouvements d'ouverture par glissement vers l'avant et de fermeture par glissement vers l'arrière du couvercle (6), et un patin inférieur (56) adapté pour buter sur la face inférieure du rail en cas de soulèvement du couvercle (6) en position d'ouverture au moins partielle de celui-ci.Hatch, in particular for technical fire hydrant inspection, of the type comprising a support frame (4) delimiting a passage (16), and a removable closure cover (6), characterized in that the frame (4) comprises a guide rail (28) on each of two side walls (8,10) of the frame, and in that the cover (6) has laterally on each side, two pads (56,58) for monitoring the guide rail ( 28), including an upper shoe (58) sliding on the upper face of the rail during the movements of opening by sliding forward and closing by sliding backwards of the cover (6), and a lower shoe (56 ) adapted to abut on the underside of the rail when the cover (6) is raised in the at least partially open position thereof. Trappe selon la revendication 1, caractérisée en ce que les patins (56,58) sont ménagés sur des jambes de support (52) s'étendant au-dessous de la face inférieure du couvercle (6) et perpendiculairement à celle-ci, latéralement de chaque côté.Door according to claim 1, characterized in that the pads (56, 58) are formed on support legs (52) extending below and perpendicular to the underside of the cover (6), laterally on each side. Trappe selon la revendication 2, caractérisée en ce que les jambes de support (52) comportent en regard des rails de guidage (28), une portion plane (59) s'étendant longitudinalement, afin d'interdire tout pivotement notable du couvercle (6).Door according to claim 2, characterized in that the support legs (52) comprise, opposite the guide rails (28), a flat portion (59) extending longitudinally, in order to prevent any significant pivoting of the cover (6 ). Trappe selon l'une quelconque des revendications précédentes, caractérisée en ce que chaque rail de guidage (28) comporte une extrémité arrière (28C) de libération du couvercle (6), et en ce que chaque paroi latérale (8,10) comporte à l'arrière une nervure de blocage (36) disposée au moins partiellement au-dessus du patin supérieur (58) lorsque celui-ci se trouve au-delà de l'extrémité de libération (28C) du couvercle, cette extrémité de libération (28C) et la nervure de blocage (36) délimitant une chicane de passage pour les patins (56,58) du couvercle.Door according to any one of the preceding claims, characterized in that each guide rail (28) has a rear end (28C) for releasing the cover (6), and in that each side wall (8,10) has at the rear a locking rib (36) disposed at least partially above the upper shoe (58) when the latter is beyond the release end (28C) of the cover, this release end (28C ) and the locking rib (36) delimiting a passage baffle for the skids (56, 58) of the cover. Trappe selon la revendication 4, caractérisée en ce que la nervure de blocage (36) a une forme allongée et est inclinée vers le bas et vers l'avant en direction de ladite extrémité de libération (28C).Door according to claim 4, characterized in that the locking rib (36) has an elongated shape and is inclined downwards and forwards in the direction of said release end (28C). Trappe selon la revendication 4 ou 5, caractérisée en ce que le couvercle (6) comporte, dans sa partie avant, une serrure de verrouillage du couvercle (6) par rapport au cadre (4) en position d'obturation, dont le pêne est adapté pour coopérer avec une surface de retenue (24) ménagée dans une paroi du cadre (4).Door according to claim 4 or 5, characterized in that the cover (6) comprises, in its front part, a lock for locking the cover (6) relative to the frame (4) in the closed position, the bolt of which is adapted to cooperate with a retaining surface (24) formed in a wall of the frame (4). Trappe selon l'une quelconque des revendications 4 à 6, caractérisée en ce que chaque rail de guidage (28) comporte une portion avant rectiligne (28A) parallèle au plan du couvercle (6) en position d'obturation, et une portion arrière inclinée (28B) vers le bas et vers l'arrière depuis la portion rectiligne (28A), jusqu'à l'extrémité de libération du couvercle (28C).Door according to any one of claims 4 to 6, characterized in that each guide rail (28) has a rectilinear front portion (28A) parallel to the plane of the cover (6) in the closed position, and an inclined rear portion (28B) downwards and backwards from the rectilinear portion (28A) to the release end of the cover (28C). Trappe selon l'une quelconque des revendications 4 à 7, caractérisée en ce que les patins (56,58) sont au moins partiellement au-delà de l'extrémité de libération (28C) du couvercle lorsque le couvercle est en position d'obturation.Door according to any one of claims 4 to 7, characterized in that the pads (56,58) are at least partially beyond the release end (28C) of the cover when the cover is in the closed position . Trappe selon l'une quelconque des revendications précédentes, caractérisée en ce que chaque rail de guidage (28) comporte une surface de support du couvercle (6) lorsque celui-ci est en position d'obturation.Door according to any one of the preceding claims, characterized in that each guide rail (28) has a surface for supporting the cover (6) when the latter is in the closed position. Trappe selon les revendications 7 et 9 prises ensembles, caractérisée en ce que le couvercle (6) comporte sur chaque bord latéral de sa face inférieure une surface d'appui (48) inclinée, adaptée pour coopérer avec la face supérieure de la portion inclinée (28B) du rail de guidage formant surface de support.Hatch according to claims 7 and 9 taken together, characterized in that the cover (6) comprises on each lateral edge of its lower face an inclined bearing surface (48), adapted to cooperate with the upper face of the inclined portion ( 28B) of the guide rail forming a support surface. Trappe selon l'une quelconque des revendications précédentes, caractérisée en ce que chaque patin supérieur (58) est placé à une distance de la face supérieure du couvercle qui est inférieure à la somme de l'épaisseur maximale du couvercle et de la distance entre la face supérieure de la partie avant du rail de guidage et la surface du sol entourant le cadre de support (4), et en ce que le patin inférieur (56) est placé à une distance de la face supérieure du couvercle (6) qui est supérieure à la somme de l'épaisseur maximale du couvercle et de la distance entre la face inférieure de la partie avant du rail de guidage (28) et ladite surface du sol, afin que le couvercle puisse reposer sur ladite surface dans sa position d'ouverture maximale.Door according to any one of the preceding claims, characterized in that each upper shoe (58) is placed at a distance from the upper face of the cover which is less than the sum of the maximum thickness of the cover and the distance between the upper face of the front part of the guide rail and the ground surface surrounding the support frame (4), and in that the lower shoe (56) is placed at a distance from the upper face of the cover (6) which is greater than the sum of the maximum thickness of the cover and the distance between the underside of the front part of the guide rail (28) and said ground surface, so that the cover can rest on said surface in its position of maximum opening. Trappe selon la revendication 11, caractérisée en ce que le couvercle (6) comporte, sur la partie avant de sa face inférieure, des surfaces de dégagement arquées (62).Door according to claim 11, characterized in that the cover (6) has, on the front part of its lower face, arcuate release surfaces (62). Trappe selon l'une quelconque des revendications précédentes, caractérisée en ce que les patins (56,58) sont disposés près de l'extrémité arrière du couvercle (6) suivant le sens d'ouverture de celui-ci.Door according to any one of the preceding claims, characterized in that the pads (56,58) are arranged near the rear end of the cover (6) in the direction of opening thereof. Trappe selon l'une quelconque des revendications précédentes, caractérisée en ce que le couvercle (6) et le cadre de support (4) sont réalisés tous deux d'une seule pièce par un procédé de fonderie.Door according to any one of the preceding claims, characterized in that the cover (6) and the support frame (4) are both made in one piece by a foundry process. Cadre pour une trappe selon l'une quelconque des revendications 1 à 14.Frame for a hatch according to any one of claims 1 to 14. Couvercle pour une trappe selon l'une quelconque des revendications 1 à 14.Lid for a hatch according to any one of claims 1 to 14.
EP95470030A 1994-08-08 1995-08-02 Cover for a fire hydrant shaft Expired - Lifetime EP0698692B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409817 1994-08-08
FR9409817A FR2723384B1 (en) 1994-08-08 1994-08-08 HATCH, PARTICULARLY FOR TECHNICAL MANHOLE OF FIRE HOUSERS AND ITS COMPONENT ELEMENTS

Publications (2)

Publication Number Publication Date
EP0698692A1 true EP0698692A1 (en) 1996-02-28
EP0698692B1 EP0698692B1 (en) 2000-06-28

Family

ID=9466170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95470030A Expired - Lifetime EP0698692B1 (en) 1994-08-08 1995-08-02 Cover for a fire hydrant shaft

Country Status (14)

Country Link
EP (1) EP0698692B1 (en)
AT (1) ATE194184T1 (en)
CZ (1) CZ285855B6 (en)
DE (1) DE69517636T2 (en)
DK (1) DK0698692T3 (en)
ES (1) ES2141063T3 (en)
FI (1) FI107069B (en)
FR (1) FR2723384B1 (en)
GR (1) GR3033810T3 (en)
NO (1) NO310309B1 (en)
PL (1) PL178185B1 (en)
PT (1) PT698692E (en)
RO (1) RO116306B1 (en)
SK (1) SK281935B6 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0822297A2 (en) * 1996-08-01 1998-02-04 Mecelec Industries Cover for underground chamber
EP2113609A3 (en) * 2008-04-30 2009-11-18 Hailo-Werk Rudolf Loh GmbH & Co. KG Cover plate
CN102748058A (en) * 2012-06-27 2012-10-24 山东康威通信技术股份有限公司 Device capable of automatically locking well after damage of ventilating pavilion protective window

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2762024B1 (en) * 1997-04-09 1999-06-18 Pont A Mousson FIREPLACE WITH INDEPENDENT TRUNK AND METHOD FOR INSTALLING SAME

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL24207C (en) * 1900-01-01
GB318012A (en) * 1928-03-05 1929-09-05 Vivian Elkington Improvements in or relating to man-hole covers and frames and the like
GB447063A (en) * 1934-11-09 1936-05-11 Vivian Elkington Improvements in or relating to covers and frames for manholes and the like
FR2618468A1 (en) * 1987-07-24 1989-01-27 Arnaud Bernard Cover for a manhole or similar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL24207C (en) * 1900-01-01
GB318012A (en) * 1928-03-05 1929-09-05 Vivian Elkington Improvements in or relating to man-hole covers and frames and the like
GB447063A (en) * 1934-11-09 1936-05-11 Vivian Elkington Improvements in or relating to covers and frames for manholes and the like
FR2618468A1 (en) * 1987-07-24 1989-01-27 Arnaud Bernard Cover for a manhole or similar

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0822297A2 (en) * 1996-08-01 1998-02-04 Mecelec Industries Cover for underground chamber
FR2751999A1 (en) * 1996-08-01 1998-02-06 Mecelec Ind CROWN DEVICE FOR BURNER CONNECTION BOX
EP0822297A3 (en) * 1996-08-01 1998-08-05 Mecelec Industries Cover for underground chamber
EP2113609A3 (en) * 2008-04-30 2009-11-18 Hailo-Werk Rudolf Loh GmbH & Co. KG Cover plate
CN102748058A (en) * 2012-06-27 2012-10-24 山东康威通信技术股份有限公司 Device capable of automatically locking well after damage of ventilating pavilion protective window
CN102748058B (en) * 2012-06-27 2014-07-02 山东康威通信技术股份有限公司 Device capable of automatically locking well after damage of ventilating pavilion protective window

Also Published As

Publication number Publication date
SK98395A3 (en) 1996-03-06
CZ202395A3 (en) 1996-02-14
GR3033810T3 (en) 2000-10-31
ES2141063T1 (en) 2000-03-16
PL178185B1 (en) 2000-03-31
FI953744A (en) 1996-02-09
FI107069B (en) 2001-05-31
PL309911A1 (en) 1996-02-19
DE69517636T2 (en) 2001-03-01
FR2723384A1 (en) 1996-02-09
SK281935B6 (en) 2001-09-11
PT698692E (en) 2000-12-29
NO953069L (en) 1996-02-09
DE69517636D1 (en) 2000-08-03
NO310309B1 (en) 2001-06-18
FR2723384B1 (en) 1996-12-20
FI953744A0 (en) 1995-08-07
ES2141063T3 (en) 2000-09-16
CZ285855B6 (en) 1999-11-17
NO953069D0 (en) 1995-08-04
DK0698692T3 (en) 2000-10-30
RO116306B1 (en) 2000-12-29
EP0698692B1 (en) 2000-06-28
ATE194184T1 (en) 2000-07-15

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