EP1091046A1 - Closing device for a manhole or an inspection shaft - Google Patents

Closing device for a manhole or an inspection shaft Download PDF

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Publication number
EP1091046A1
EP1091046A1 EP00470018A EP00470018A EP1091046A1 EP 1091046 A1 EP1091046 A1 EP 1091046A1 EP 00470018 A EP00470018 A EP 00470018A EP 00470018 A EP00470018 A EP 00470018A EP 1091046 A1 EP1091046 A1 EP 1091046A1
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EP
European Patent Office
Prior art keywords
pivot
closed position
recess
branch
frame
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
EP00470018A
Other languages
German (de)
French (fr)
Other versions
EP1091046B1 (en
Inventor
Jean-Claude Royer
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.)
Saint Gobain PAM SA
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Saint Gobain PAM SA
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Publication date
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Publication of EP1091046A1 publication Critical patent/EP1091046A1/en
Application granted granted Critical
Publication of EP1091046B1 publication Critical patent/EP1091046B1/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
    • E02D29/1418—Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/10—Hinges or pivots of special construction to allow easy separation or connection of the parts at the hinge axis
    • E05D7/1061—Hinges or pivots of special construction to allow easy separation or connection of the parts at the hinge axis in a radial direction
    • E05D7/1066—Hinges or pivots of special construction to allow easy separation or connection of the parts at the hinge axis in a radial direction requiring a specific angular position
    • E05D7/1072—Hinges or pivots of special construction to allow easy separation or connection of the parts at the hinge axis in a radial direction requiring a specific angular position the pin having a non-circular cross-section
    • 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 a manhole closure device or inspection system comprising at least one covering element (buffer or grid) articulated on a support frame.
  • chimney closure devices to visit or inspect an underground water network, such as manholes pavements or sidewalks
  • closing devices of technical rooms inspection of an underground cable network such as hatches
  • devices crowning of manholes such as road grilles
  • the covering element is mounted pivoting on the frame, which facilitates the opening and closing of this element, limits the risk of accident during these operations and avoids lifting the covering element during the passage of a heavy vehicle generating a vertical suction.
  • the covering element must be able to be removed (removed), which implies a removable hinge; however, the mounting method of this hinge does not must not allow removal or opening of the element if it is otherwise locked, for example by lifting the element in the region of the hinge.
  • the document EP 0 084 510 shows such a device improved in integrating the guiding means at the hinge, which makes it possible to have a guiding from the start of the closure of the covering element;
  • the solution described consists in providing the articulation axis of the frame and an articulation fork of the buffer of complementary profiles whose cooperation ensures the guiding of the tilting.
  • the continuous curved shapes of the profiles complementary do not prohibit any longitudinal movement of the element of overlap in the frame in particular towards the edge thereof which is opposite to the articulation axis, and it is necessary to provide means for additional positioning in V.
  • the object of the invention is to remedy these drawbacks, and more specifically to create a manhole closure device or inspection comprising a frame and at least one covering element adapted to be carried by this frame, in which the closing movement of the element is guided along its entire travel and the positioning of the element in closed position is ensured by hinge means of articulation without the need to provide additional positioning means.
  • the invention also aims to create such an improved device to allow removal of the cover element by lifting this provided you tilt it a few degrees, which is possible only in the case of a non-locking or unlocked element.
  • the invention therefore relates to a manhole closure device. visit or inspection, comprising a frame, at least one element of cover adapted to be carried by the frame, as well as means of articulation of the element relative to the frame, the means of articulation comprising at least one pivot extending transversely in at least one alveolus formed in a wall surrounding the frame, and at least one stud protrusion at the periphery of the element, the post being adapted to extend in the socket and comprising a fork provided with two branches which, in the position of closure of the element on the frame, extend one above the pivot beyond of it towards the bottom of the cell and the other below the pivot in below the upper branch, characterized in that the fork and the pivot have facing sliding surfaces adapted to slide one against the other when the element is pivoted around the pivot, and one of the organs that are the upper branch and the pivot comprises at least one retaining recess and the other at least one retaining lug at least partially housed in the recess when the element is in the closed position to then prevent
  • the element is guided over its entire closing stroke and in addition its longitudinal positioning in the closed position is ensured.
  • the branch extending in the closed position below of the pivot then has its free end below the pivot.
  • the pivot has a generally cylindrical shape centered on an axis extending transversely to the cell, and the branch extending in closed position below the pivot then extends only below the axis of articulation.
  • the viewing device shown in FIG. 1 in the position of closure is made of ductile iron and has a frame 1, and, inside this frame, a buffer or several buffers 2 juxtaposed (here two buffers) forming covering elements.
  • the frame 1 includes a surrounding wall 11 of the element or elements covering, which has a face 111 facing inward, and relief reliefs (not shown in the drawings) integral with the inner face of the wall entourage which support the element (s) 2.
  • Each covering element has a edge 21 which, in closed position, is facing the face 111 of the frame facing the interior thereof, and a face 22 which, in the same position, is approximately horizontal and extends to the top of the element.
  • the viewing device can be released for a visit or of an inspection, by pivoting of the covering element (s) 2, or by removing this or these elements, it is provided with means of articulation around an axis 12, forming a removable hinge.
  • These articulation means comprise one or more cells 13 each formed by a recess in the surrounding wall 11 of the frame, and one or more studs 23 carried by each element 2, these studs extending projecting from edge 21 that is to say at the periphery of the element and being positioned and sized to extend into the alveoli when the element rests on the frame in order to maintain an access opening which is maximum; they also include, in each cell, at least one pivot 14 of generally cylindrical shape extending transversely to the cell, by example a through pivot or one or two pivots carried by the walls lateral of the cell; each element 2 is thus articulated relative to the frame by one or more pivots aligned along the same articulation axis 12.
  • the lug 23 has a fork with two branches extending into the socket, one above the other, approximately longitudinally when the element 2 is in the closed position; branch upper then extends above the pivot 14 beyond it in the direction of the bottom 15 of the recess in the surrounding wall 11 constituting the cell 13 (so seen here in horizontal direction), and the lower branch below of the pivot preferably below the upper branch, so that it is not necessary to reach a vertical open position of the element to ability to disassemble hinge and remove it.
  • the facing surfaces 231, 232 of the legs of the fork being intended to slide or likely to have to slide against facing surfaces of the pivot 14 during a pivotally guided pivoting of the element 2 around the pivot, and the pivot having a generally cylindrical shape, these surfaces in look extend approximately parallel and horizontally when the element is in the closed position, at a greater distance from each other to the diameter of the pivot, and are connected by a rounded surface 233 constituting the bottom of the fork.
  • the branch upper has a retaining recess 234 extending into the bottom of the fork or several successive recesses 234 spaced one after the other in the transverse direction of the cell, and the pivot or pivots have a or more retaining pins 141 projecting upwards each at least partially housed in a recess 234 when the element is in the position of closing ( Figure 2A); the recess (s) do not extend or extend little beyond the pivot in the direction of the free end of the upper branch, and end in this region by an inclined surface close to the vertical, at immediate proximity to the lug; in the opposite direction, the recess 234 extends to the bottom of the fork and ends at the birth of the lower branch; lug 141 carried by the pivot and partially housed in the recess 234 when the element 2 is in the closed position therefore prevents the translation of the element in the direction of the distance of the stud 23 relative to the bottom 15 of cell 13, and thus prevents the free end of the branch lower comes below the
  • the recess (s) 234 of the fork (for example two recesses) and the corresponding lug (s) 141 of the pivot are made at one or more lateral end regions of the fork and the steerer respectively, especially for reasons of machining convenience, but this feature is not mandatory.
  • the pivot 14 has a recess or several retaining recesses 142 spaced in succession in the transverse direction of the cell 13 (longitudinal direction of the pivot) made opposite the bottom 15 of the cell 13;
  • the upper branch of the fork has one or more retaining pins 235 projecting downwards each at least partially housed in a recess 142 when the element is in the closed position ( Figure 3A);
  • the lug (s) 235 then extend, in the direction of the free end of the branch, beyond the pivot 14, and the walls in opposite the bottom of the recess 142 and the lug 235 are slightly inclined in the opposite direction when the element is in the closed position (the wall of the lug being inclined downwards towards the bottom 15 of the cell and that of the recess down in the opposite direction);
  • the lug carried by the branch upper and partially housed in the recess when the element is in position closing therefore prevents the translation of element 2 in the direction of the distance of the post 23 relative to the bottom 15 of the cell
  • the fork comprises a lug 235 approximately central corresponding, but this characteristic is not not mandatory.
  • the pivot 14 further comprises one or more guide pins lower 143 slightly protruding from the periphery of the pivot, in a direction making an angle of about 45 ° with the vertical and tilted downwards towards the interior of the frame; the distance from the free end of these pins guide 143 to the hinge pin 12 is approximately equal (generally slightly less) than the half-diagonal of the square circumscribed at circle defining the shape of the right cross section of the pivot.
  • the guide pin 143 facilitates the closing of the element 2 and forces the retaining lug to be positioned in the corresponding recess, by following its cooperation with the sliding surface 232 of the branch lower fork during the closing movement; furthermore in these embodiments, the upper branch has at its free end, at near the bottom of the socket 13, a tooth 236 projecting downwards when element 2 is in the closed position.
  • cover element 2 can only be removed when it is in almost vertical position of full opening.
  • the terminal inclined surfaces of the recesses located opposite lugs have the advantage, by giving a little play, of ensuring that the retaining pins 141 do not oppose the quasi-horizontal removal; if we do not wish to obtain this quasi-horizontal removal, these inclined surfaces are useless.

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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)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)
  • Endoscopes (AREA)
  • Measuring Volume Flow (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Accessories Of Cameras (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The tenon (23) has two branches one of which when locked extends above a pivot (14) in the direction of the cavity bottom and the other under the upper branch. The upper branch and pivot comprise a recess (234) and a lug (141) housed in the recess when in the locked position prevents translation of the cover separating the tenon from the cavity bottom. The locking system comprises a frame (1) and a hinged cover (2) with a cavity (13) in the frame wall. A tenon (23) carried by an edge of the cover extends into the cavity.

Description

L'invention concerne un dispositif de fermeture de regard de visite ou d'inspection comportant au moins un élément de recouvrement (tampon ou grille) articulé sur un cadre support.The invention relates to a manhole closure device or inspection system comprising at least one covering element (buffer or grid) articulated on a support frame.

Elle s'applique notamment aux dispositifs de fermeture de cheminées de visite ou d'inspection d'un réseau d'eau souterrain, tels que des regards de chaussées ou de trottoirs, aux dispositifs de fermeture de chambres techniques d'inspection d'un réseau câblé souterrain, tels que des trappes, et aux dispositifs de couronnement de bouches d'égouts tels que des grilles de voirie.It applies in particular to chimney closure devices to visit or inspect an underground water network, such as manholes pavements or sidewalks, to the closing devices of technical rooms inspection of an underground cable network, such as hatches, and devices crowning of manholes such as road grilles.

Dans des dispositifs de voirie de ce type, l'accès aux réseaux d'eau ou aux réseaux câblés parcourant le sous-sol est rendu possible par la présence de regards ou trappes comprenant un cadre fermé par un élément de recouvrement, généralement en fonte, disposé au ras de la surface du sol.In road systems of this type, access to water networks or to cable networks running through the basement is made possible by the presence of manholes or hatches comprising a frame closed by a covering element, generally made of cast iron, placed flush with the ground surface.

De manière avantageuse, l'élément de recouvrement est monté pivotant sur le cadre, ce qui facilite l'ouverture et la fermeture de cet élément, limite les risques d'accident lors de ces opérations et évite le soulèvement de l'élément de recouvrement lors du passage d'un véhicule lourd engendrant une aspiration verticale.Advantageously, the covering element is mounted pivoting on the frame, which facilitates the opening and closing of this element, limits the risk of accident during these operations and avoids lifting the covering element during the passage of a heavy vehicle generating a vertical suction.

De plus, pour accéder plus facilement au puits obturé par le regard, l'élément de recouvrement doit pouvoir être déposé (enlevé), ce qui suppose une charnière démontable ; cependant, le mode de montage de cette charnière ne doit pas permettre la dépose ou l'ouverture de l'élément si celui-ci est par ailleurs verrouillé, par exemple par soulèvement de l'élément dans la région de la charnière.In addition, for easier access to the well closed by the gaze, the covering element must be able to be removed (removed), which implies a removable hinge; however, the mounting method of this hinge does not must not allow removal or opening of the element if it is otherwise locked, for example by lifting the element in the region of the hinge.

Enfin, il est également souhaitable de pouvoir contrôler les manoeuvres d'ouverture et de fermeture de l'élément de recouvrement en assurant un guidage de celui-ci lors de son basculement autour de l'axe d'articulation ; on évite ainsi les mauvaises portées de l'élément sur le cadre, notamment lors d'une fermeture brutale lorsque l'on repousse l'élément sans l'accompagner durant son pivotement.Finally, it is also desirable to be able to control the opening and closing operations of the cover element in guiding the latter during its tilting around the axis articulation; this avoids bad bearing of the element on the frame, especially during a sudden closure when the element is pushed back without accompany him during his pivoting.

Ces problèmes ont été résolus partiellement par le document GB 415 075 où une partie incurvée de reliefs situés sous l'élément de recouvrement, à proximité de la charnière, assure une fonction de guidage de l'élément lorsqu'elle vient en contact avec une partie incurvée correspondante d'une surface du cadre servant d'appui pour l'élément. Ces moyens de guidage permettant un bon positionnement final de l'élément de recouvrement dans le cadre dans la direction perpendiculaire à l'axe de rotation (direction longitudinale), ne sont cependant pas opérationnels dès le début, mais uniquement à la fin de la course de l'élément, ce qui laisse subsister des risques que celui-ci retombe sans que les moyens de guidage aient commencé à coopérer.These problems have been partially resolved by GB 415 075 where a curved part of reliefs located under the covering element, at proximity to the hinge, provides a guiding function for the element when comes into contact with a corresponding curved part of a surface of the frame serving as support for the element. These guide means allowing good final positioning of the cover element in the frame in the direction perpendicular to the axis of rotation (longitudinal direction), are not however not operational from the start, but only at the end of the race of the element, which leaves risks that it falls without the guide means have started to cooperate.

Le document EP 0 084 510 montre un tel dispositif perfectionné en intégrant les moyens de guidage à la charnière, ce qui permet d'avoir un guidage dès le début de la fermeture de l'élément de recouvrement ; la solution décrite consiste à munir l'axe d'articulation du cadre et une fourche d'articulation du tampon de profils complémentaires dont la coopération assure le guidage du basculement. Cependant, les formes courbes continues des profils complémentaires n'interdisent pas tout mouvement longitudinal de l'élément de recouvrement dans le cadre notamment en direction du bord de celui-ci qui est à l'opposé de l'axe d'articulation, et il est nécessaire de prévoir des moyens de positionnement supplémentaires en V.The document EP 0 084 510 shows such a device improved in integrating the guiding means at the hinge, which makes it possible to have a guiding from the start of the closure of the covering element; the solution described consists in providing the articulation axis of the frame and an articulation fork of the buffer of complementary profiles whose cooperation ensures the guiding of the tilting. However, the continuous curved shapes of the profiles complementary do not prohibit any longitudinal movement of the element of overlap in the frame in particular towards the edge thereof which is opposite to the articulation axis, and it is necessary to provide means for additional positioning in V.

L'invention a pour but de remédier à ces inconvénients, et plus précisément de créer un dispositif de fermeture de regard de visite ou d'inspection comportant un cadre et au moins un élément de recouvrement adapté pour être porté par ce cadre, dans lequel le mouvement de fermeture de l'élément est guidé sur toute sa course et le positionnement de l'élément en position de fermeture est assuré par des moyens d'articulation formant charnière sans nécessité de prévoir des moyens de positionnement supplémentaires.The object of the invention is to remedy these drawbacks, and more specifically to create a manhole closure device or inspection comprising a frame and at least one covering element adapted to be carried by this frame, in which the closing movement of the element is guided along its entire travel and the positioning of the element in closed position is ensured by hinge means of articulation without the need to provide additional positioning means.

L'invention a également pour but de créer un tel dispositif perfectionné pour permettre la dépose de l'élément de recouvrement par soulèvement de celui-ci à condition de l'incliner de quelques degrés, ce qui est possible uniquement dans le cas d'un élément non-verrouillable ou déverrouillé.The invention also aims to create such an improved device to allow removal of the cover element by lifting this provided you tilt it a few degrees, which is possible only in the case of a non-locking or unlocked element.

L'invention concerne donc un dispositif de fermeture de regard de visite ou d'inspection, comportant un cadre, au moins un élément de recouvrement adapté pour être porté par le cadre, ainsi que des moyens d'articulation de l'élément par rapport au cadre, les moyens d'articulation comprenant au moins un pivot s'étendant transversalement dans au moins une alvéole ménagée dans une paroi d'entourage du cadre, et au moins un tenon en saillie à la périphérie de l'élément, le tenon étant adapté pour s'étendre dans l'alvéole et comportant une fourche munie de deux branches qui, en position de fermeture de l'élément sur le cadre, s'étendent l'une au-dessus du pivot au-delà de celui-ci en direction du fond de l'alvéole et l'autre au-dessous du pivot en deçà de la branche du dessus, caractérisé en ce que la fourche et le pivot comportent en vis-à-vis des surfaces de glissement adaptées pour glisser l'une contre l'autre lors d'un pivotement de l'élément autour du pivot, et l'un des organes que sont la branche du dessus et le pivot comporte au moins un évidement de retenue et l'autre au moins un ergot de retenue au moins partiellement logé dans l'évidement quand l'élément est en position de fermeture pour empêcher alors une translation de l'élément dans le sens de l'éloignement du tenon du fond de l'alvéole et empêcher ainsi que l'extrémité libre de la branche du dessous vienne en deçà du pivot.The invention therefore relates to a manhole closure device. visit or inspection, comprising a frame, at least one element of cover adapted to be carried by the frame, as well as means of articulation of the element relative to the frame, the means of articulation comprising at least one pivot extending transversely in at least one alveolus formed in a wall surrounding the frame, and at least one stud protrusion at the periphery of the element, the post being adapted to extend in the socket and comprising a fork provided with two branches which, in the position of closure of the element on the frame, extend one above the pivot beyond of it towards the bottom of the cell and the other below the pivot in below the upper branch, characterized in that the fork and the pivot have facing sliding surfaces adapted to slide one against the other when the element is pivoted around the pivot, and one of the organs that are the upper branch and the pivot comprises at least one retaining recess and the other at least one retaining lug at least partially housed in the recess when the element is in the closed position to then prevent a translation of the element in the direction of the distance of the tenon at the bottom of the cell and thus prevent the free end of the branch below comes below the pivot.

Ainsi, l'élément est guidé sur toute sa course de fermeture et en outre son positionnement longitudinal en position de fermeture est assuré.Thus, the element is guided over its entire closing stroke and in addition its longitudinal positioning in the closed position is ensured.

Avantageusement, la branche s'étendant en position de fermeture au-dessous du pivot a alors son extrémité libre au-dessous du pivot.Advantageously, the branch extending in the closed position below of the pivot then has its free end below the pivot.

Ainsi, la dépose de l'élément de recouvrement par soulèvement de celui-ci peut être effectuée sans qu'il soit nécessaire de l'amener préalablement en position verticale.Thus, the removal of the cover element by lifting this can be done without having to bring it beforehand upright.

Par exemple, le pivot présente une forme générale cylindrique centrée sur un axe s'étendant transversalement à l'alvéole, et la branche s'étendant en position de fermeture au-dessous du pivot s'étend alors seulement en deçà de l'axe d'articulation.For example, the pivot has a generally cylindrical shape centered on an axis extending transversely to the cell, and the branch extending in closed position below the pivot then extends only below the axis of articulation.

Dans ce cas, la dépose de l'élément de recouvrement par soulèvement de celui-ci ne nécessite qu'une inclinaison de seulement quelques degrés (soulèvement quasi-horizontal).In this case, the removal of the covering element by lifting it only requires a tilt of just a few degrees (almost horizontal uplift).

Le dispositif peut en outre comporter une ou plusieurs des caractéristiques suivantes :

  • l'ergot de retenue et l'évidement présentent des surfaces inclinées en vis-à-vis lorsque l'élément est en position de fermeture,
  • le pivot comporte au moins un ergot de guidage en saillie dans une direction inclinée vers le bas et vers l'intérieur du cadre,
  • la branche s'étendant en position de fermeture au-dessus du pivot comporte, à son extrémité libre, à proximité du fond de l'alvéole, une dent en saillie vers le bas quand l'élément est en position de fermeture,
  • la branche s'étendant en position de fermeture au-dessus du pivot présente au moins un évidement se prolongeant dans le fond de la fourche, et le pivot présente au moins un ergot de retenue en saillie vers le haut et qui est au moins partiellement logé dans l'évidement quand l'élément est en position de fermeture,
  • la branche s'étendant en position de fermeture au-dessus du pivot présente deux évidements se prolongeant dans le fond de la fourche, creusés dans des régions d'extrémités latérales de cette branche, et deux ergots de retenue en saillie vers le haut et portés par au moins un pivot sont au moins partiellement logés chacun dans un évidement quand l'élément est en position de fermeture,
  • le pivot présente au moins un évidement en vis-à-vis du fond de l'alvéole, et la branche s'étendant en position de fermeture au-dessus du pivot présente au moins un ergot de retenue qui est au moins partiellement logé dans l'évidement quand l'élément est en position de fermeture,
  • le pivot présente un évidement approximativement central en vis-à-vis du fond de l'alvéole, et la branche s'étendant en position de fermeture au-dessus du pivot présente un ergot de retenue qui est au moins partiellement logé dans l'évidement quand l'élément est en position de fermeture.
The device can also include one or more of the following characteristics:
  • the retaining lug and the recess have inclined surfaces facing each other when the element is in the closed position,
  • the pivot comprises at least one guide lug projecting in a direction inclined downwards and towards the inside of the frame,
  • the branch extending in the closed position above the pivot comprises, at its free end, near the bottom of the cell, a tooth projecting downwards when the element is in the closed position,
  • the branch extending in the closed position above the pivot has at least one recess extending into the bottom of the fork, and the pivot has at least one retaining lug projecting upward and which is at least partially housed in the recess when the element is in the closed position,
  • the branch extending in the closed position above the pivot has two recesses extending into the bottom of the fork, hollowed out in regions of lateral ends of this branch, and two retaining lugs projecting upwards and carried by at least one pivot are at least partially housed each in a recess when the element is in the closed position,
  • the pivot has at least one recess facing the bottom of the cell, and the branch extending in the closed position above the pivot has at least one retaining lug which is at least partially housed in the '' recess when the element is in the closed position,
  • the pivot has an approximately central recess opposite the bottom of the cell, and the branch extending in the closed position above the pivot has a retaining lug which is at least partially housed in the recess when the element is in the closed position.

D'autres caractéristiques et avantages de l'invention ressortiront de la description de formes de réalisation de l'invention qui va suivre, donnée à titre d'exemple non limitatif et illustrée par les dessins joints dans lesquels :

  • la figure 1 est une vue de dessus d'un dispositif selon l'invention,
  • les figures 2A à 2D sont des coupes longitudinales schématiques d'une partie du dispositif de la figure 1 selon la ligne Il-Il de cette figure, très agrandie, montrant les moyens d'articulation formant charnière dans quatre positions relatives différentes, et
  • les figures 3A à 3D sont des coupes longitudinales schématiques correspondant à celles des figures 2A à 2D respectivement, pour une autre forme de réalisation des moyens d'articulation formant charnière.
Other characteristics and advantages of the invention will emerge from the description of embodiments of the invention which follows, given by way of nonlimiting example and illustrated by the accompanying drawings in which:
  • FIG. 1 is a top view of a device according to the invention,
  • FIGS. 2A to 2D are schematic longitudinal sections of a part of the device of FIG. 1 along the line II-II of this figure, very enlarged, showing the articulation means forming a hinge in four different relative positions, and
  • FIGS. 3A to 3D are schematic longitudinal sections corresponding to those of FIGS. 2A to 2D respectively, for another embodiment of the articulation means forming a hinge.

Le dispositif de regard représenté sur la figure 1 en position de fermeture est en fonte ductile et comporte un cadre 1, et, à l'intérieur de ce cadre, un tampon ou plusieurs tampons 2 juxtaposés (ici deux tampons) formant éléments de recouvrement.The viewing device shown in FIG. 1 in the position of closure is made of ductile iron and has a frame 1, and, inside this frame, a buffer or several buffers 2 juxtaposed (here two buffers) forming covering elements.

Le cadre 1 comporte une paroi d'entourage 11 du ou des éléments de recouvrement, qui a une face 111 tournée vers l'intérieur, et des reliefs d'appui (non représentés sur les dessins) solidaires de la face intérieure de la paroi d'entourage qui supportent le ou les éléments 2.The frame 1 includes a surrounding wall 11 of the element or elements covering, which has a face 111 facing inward, and relief reliefs (not shown in the drawings) integral with the inner face of the wall entourage which support the element (s) 2.

Chaque élément de recouvrement comporte un chant 21 qui, en position de fermeture, est en regard de la face 111 du cadre tournée vers l'intérieur de celui-ci, et une face 22 qui, dans la même position, est approximativement horizontale et s'étend à la partie supérieure de l'élément.Each covering element has a edge 21 which, in closed position, is facing the face 111 of the frame facing the interior thereof, and a face 22 which, in the same position, is approximately horizontal and extends to the top of the element.

Afin que le dispositif de regard puisse être dégagé en vue d'une visite ou d'une inspection, par pivotement du ou des éléments 2 de recouvrement, ou par dépose de ce ou ces éléments, il est muni de moyens d'articulation autour d'un axe 12, formant charnière démontable.So that the viewing device can be released for a visit or of an inspection, by pivoting of the covering element (s) 2, or by removing this or these elements, it is provided with means of articulation around an axis 12, forming a removable hinge.

Ces moyens d'articulation comprennent une ou plusieurs alvéoles 13 constituées chacune par un renfoncement dans la paroi d'entourage 11 du cadre, et un ou plusieurs tenons 23 portés par chaque élément 2, ces tenons s'étendant en saillie à partir du chant 21 c'est-à-dire à la périphérie de l'élément et étant positionnés et dimensionnés pour s'étendre dans les alvéoles lorsque l'élément repose sur le cadre afin de conserver une ouverture d'accès qui soit maximale ; ils comprennent également, dans chaque alvéole, au moins un pivot 14 de forme générale cylindrique s'étendant transversalement à l'alvéole, par exemple un pivot traversant ou encore un ou deux pivots portés par les parois latérales de l'alvéole ; chaque élément 2 est ainsi articulé par rapport au cadre par un ou plusieurs pivots alignés le long d'un même axe d'articulation 12.These articulation means comprise one or more cells 13 each formed by a recess in the surrounding wall 11 of the frame, and one or more studs 23 carried by each element 2, these studs extending projecting from edge 21 that is to say at the periphery of the element and being positioned and sized to extend into the alveoli when the element rests on the frame in order to maintain an access opening which is maximum; they also include, in each cell, at least one pivot 14 of generally cylindrical shape extending transversely to the cell, by example a through pivot or one or two pivots carried by the walls lateral of the cell; each element 2 is thus articulated relative to the frame by one or more pivots aligned along the same articulation axis 12.

Sur la figure 1 où le cadre 1 est en forme de carré et où les deux éléments 2 sont en forme de trapèzes (ou approximativement de triangles) rectangles égaux disposés symétriquement par rapport au centre du carré, ces deux éléments sont articulés au cadre chacun au moyen de deux tenons portés par le côté du trapèze perpendiculaire aux bases, et de deux alvéoles creusées dans les côtés parallèles de la paroi d'entourage qui sont en vis-à-vis chacun de l'un de ces deux côtés du trapèze; les élément comportent chacun deux lumières 221 destinées à recevoir chacune un outil de préhension permettant de les faire pivoter, et après démontage de la charnière, de les déposer (les lumières de préhension d'un seul des deux éléments sont représentées).In Figure 1 where the frame 1 is square and where the two elements 2 are in the form of trapezoids (or approximately triangles) equal rectangles arranged symmetrically to the center of the square, these two elements are articulated to the frame each by means of two tenons carried by the side of the trapezoid perpendicular to the bases, and two hollowed-out cells in the parallel sides of the surrounding wall which are opposite each of one of these two sides of the trapezoid; the elements each have two lights 221 each intended to receive a gripping tool making it possible to rotate them, and after removing the hinge, remove them (the gripping lights of only one of the two elements are shown).

Plus précisément, le tenon 23 comporte une fourche à deux branches s'étendant dans l'alvéole, l'une au-dessus de l'autre, approximativement longitudinalement lorsque l'élément 2 est en position de fermeture ; la branche supérieure s'étend alors au-dessus du pivot 14 au-delà de celui-ci en direction du fond 15 du renfoncement dans la paroi d'entourage 11 constituant l'alvéole 13 (donc considéré ici en direction horizontale), et la branche inférieure au-dessous du pivot de préférence en deçà de la branche du dessus, afin qu'il ne soit pas nécessaire d'atteindre une position d'ouverture verticale de l'élément pour pouvoir démonter la charnière et déposer celui-ci.More specifically, the lug 23 has a fork with two branches extending into the socket, one above the other, approximately longitudinally when the element 2 is in the closed position; branch upper then extends above the pivot 14 beyond it in the direction of the bottom 15 of the recess in the surrounding wall 11 constituting the cell 13 (so seen here in horizontal direction), and the lower branch below of the pivot preferably below the upper branch, so that it is not necessary to reach a vertical open position of the element to ability to disassemble hinge and remove it.

Les surfaces en regard 231, 232 des branches de la fourche étant destinées à glisser ou susceptibles de devoir glisser contre les surfaces en vis-à-vis du pivot 14 lors d'un pivotement guidé en rotation de l'élément 2 autour du pivot, et le pivot présentant une forme générale cylindrique, ces surfaces en regard s'étendent approximativement parallèlement et horizontalement quand l'élément est en position de fermeture, à une distance l'une de l'autre supérieure au diamètre du pivot, et sont raccordées par une surface arrondie 233 constituant le fond de la fourche.The facing surfaces 231, 232 of the legs of the fork being intended to slide or likely to have to slide against facing surfaces of the pivot 14 during a pivotally guided pivoting of the element 2 around the pivot, and the pivot having a generally cylindrical shape, these surfaces in look extend approximately parallel and horizontally when the element is in the closed position, at a greater distance from each other to the diameter of the pivot, and are connected by a rounded surface 233 constituting the bottom of the fork.

Dans la forme de réalisation des figures 2A à 2D, la branche supérieure présente un évidement de retenue 234 se prolongeant dans le fond de la fourche ou plusieurs évidements de retenue 234 espacés se succédant dans la direction transversale de l'alvéole, et le pivot ou les pivots présentent un ou plusieurs ergots de retenue 141 en saillie vers le haut chacun au moins partiellement logé dans un évidement 234 quand l'élément est en position de fermeture (figure 2A) ; le ou les évidements ne s'étendent pas ou s'étendent peu au-delà du pivot en direction de l'extrémité libre de la branche supérieure, et se terminent dans cette région par une surface inclinée proche de la verticale, à proximité immédiate de l'ergot ; dans la direction opposée, l'évidement 234 s'étend jusque dans le fond de la fourche et se termine à la naissance de la branche inférieure ; l'ergot 141 porté par le pivot et partiellement logé dans l'évidement 234 quand l'élément 2 est en position de fermeture empêche donc la translation de l'élément dans le sens de l'éloignement du tenon 23 par rapport au fond 15 de l'alvéole 13, et empêche ainsi que l'extrémité libre de la branche inférieure vienne en deçà du pivot. Il en résulte qu'il est impossible de soulever notablement l'élément 2 par translation perpendiculaire à son plan sans que la translation soit entravée par le pivot 14 (figure 2B), et que ce n'est qu'après un pivotement préalable (figure 2C), possible seulement si l'élément 2 n'est pas verrouillé, que l'on peut soulever cet élément en évitant l'entrave du pivot (figure 2D) et déposer l'élément; en outre, l'ergot 141 empêchant tout mouvement longitudinal notable de l'élément 2, garantit le positionnement correct de celui-ci dans le cadre sans qu'il soit nécessaire d'assister sa descente à la main lors de la fermeture, et il est possible de laisser l'élément retomber brutalement sans craindre qu'il se place de travers sur le cadre, la coopération de l'ergot 14 avec la surface inclinée de l'évidement 234 assurant la retenue de l'élément 2 au cours de sa fermeture brutale. De préférence, le ou les évidements 234 de la fourche (par exemple deux évidements) et le ou les ergots 141 correspondants du pivot sont réalisés à une ou aux régions d'extrémités latérales de la fourche et du pivot respectivement, notamment pour des raisons de commodité d'usinage, mais cette caractéristique n'est pas obligatoire.In the embodiment of Figures 2A to 2D, the branch upper has a retaining recess 234 extending into the bottom of the fork or several successive recesses 234 spaced one after the other in the transverse direction of the cell, and the pivot or pivots have a or more retaining pins 141 projecting upwards each at least partially housed in a recess 234 when the element is in the position of closing (Figure 2A); the recess (s) do not extend or extend little beyond the pivot in the direction of the free end of the upper branch, and end in this region by an inclined surface close to the vertical, at immediate proximity to the lug; in the opposite direction, the recess 234 extends to the bottom of the fork and ends at the birth of the lower branch; lug 141 carried by the pivot and partially housed in the recess 234 when the element 2 is in the closed position therefore prevents the translation of the element in the direction of the distance of the stud 23 relative to the bottom 15 of cell 13, and thus prevents the free end of the branch lower comes below the pivot. As a result, it is impossible to lift notably element 2 by translation perpendicular to its plane without the translation is hampered by pivot 14 (Figure 2B), and that it is only after a preliminary pivoting (figure 2C), possible only if element 2 is not locked, that this element can be lifted avoiding the obstruction of the pivot (figure 2D) and drop the item; in addition, the pin 141 preventing any movement significant longitudinal of element 2, guarantees the correct positioning of the latter in the frame without it being necessary to assist his descent by hand during closing, and it is possible to drop the element suddenly without fear that it is placed askew on the frame, the cooperation of lug 14 with the inclined surface of the recess 234 ensuring the retention of the element 2 during of its abrupt closure. Preferably, the recess (s) 234 of the fork (for example two recesses) and the corresponding lug (s) 141 of the pivot are made at one or more lateral end regions of the fork and the steerer respectively, especially for reasons of machining convenience, but this feature is not mandatory.

Dans la forme de réalisation des figures 3A à 3D, le pivot 14 présente un évidement ou plusieurs évidements de retenue 142 espacés se succédant dans la direction transversale de l'alvéole 13 (direction longitudinale du pivot) réalisés en vis-à-vis du fond 15 de l'alvéole 13 ; la branche supérieure de la fourche présente un ou plusieurs ergots de retenue 235 en saillie vers le bas chacun au moins partiellement logé dans un évidement 142 quand l'élément est en position de fermeture (figure 3A) ; le ou les ergots 235 s'étendent alors, dans la direction de l'extrémité libre de la branche, au-delà du pivot 14, et les parois en vis-à-vis du fond de l'évidement 142 et de l'ergot 235 sont légèrement inclinées en sens inverses lorsque l'élément est en position de fermeture (la paroi de l'ergot étant incliné vers le bas en direction du fond 15 de l'alvéole et celle de l'évidement vers le bas en direction opposée) ; l'ergot porté par la branche supérieure et partiellement logé dans l'évidement quand l'élément est en position de fermeture empêche donc la translation de l'élément 2 dans le sens de l'éloignement du tenon 23 par rapport au fond 15 de l'alvéole 13, et empêche ainsi que l'extrémité libre de la branche inférieure vienne en deçà du pivot 14. Il en résulte qu'il est impossible de soulever notablement l'élément 2 par translation perpendiculaire à son plan sans que la translation soit entravée par le pivot 14 (figure 3B), et que ce n'est qu'après un pivotement préalable (figure 3C), possible seulement si l'élément n'est pas verrouillé, que l'on peut soulever l'élément 2 en évitant l'entrave du pivot (figure 3D) et déposer l'élément ; là encore, les ergots empêchant tout mouvement longitudinal notable de l'élément, garantissent le positionnement correct de celui-ci dans le cadre sans qu'il soit nécessaire d'assister sa descente à la main lors de la fermeture, et il est possible de laisser celui-ci retomber brutalement sans craindre qu'il se place de travers sur le cadre.In the embodiment of FIGS. 3A to 3D, the pivot 14 has a recess or several retaining recesses 142 spaced in succession in the transverse direction of the cell 13 (longitudinal direction of the pivot) made opposite the bottom 15 of the cell 13; the upper branch of the fork has one or more retaining pins 235 projecting downwards each at least partially housed in a recess 142 when the element is in the closed position (Figure 3A); the lug (s) 235 then extend, in the direction of the free end of the branch, beyond the pivot 14, and the walls in opposite the bottom of the recess 142 and the lug 235 are slightly inclined in the opposite direction when the element is in the closed position (the wall of the lug being inclined downwards towards the bottom 15 of the cell and that of the recess down in the opposite direction); the lug carried by the branch upper and partially housed in the recess when the element is in position closing therefore prevents the translation of element 2 in the direction of the distance of the post 23 relative to the bottom 15 of the cell 13, and prevents as well as the free end of the lower branch comes below the pivot 14. It as a result it is impossible to lift the element 2 appreciably by translation perpendicular to its plane without the translation being hampered by the pivot 14 (FIG. 3B), and that it is only after a prior pivoting (FIG. 3C), only possible if the element is not locked, which can be lifted element 2 avoiding the obstruction of the pivot (Figure 3D) and remove the element; the again, the pins preventing any significant longitudinal movement of the element, guarantee the correct positioning of it in the frame without it being necessary to assist its descent by hand when closing, and it is possible to let it fall suddenly without fearing that it will go askew on the frame.

De préférence, pour ne pas trop fragiliser le pivot, celui-ci ne comporte qu'un évidement 142 approximativement central, et la fourche comporte un ergot 235 approximativement central correspondant, mais cette caractéristique n'est pas obligatoire.Preferably, in order not to weaken the pivot too much, it does not include that an approximately central recess 142, and the fork comprises a lug 235 approximately central corresponding, but this characteristic is not not mandatory.

Dans les formes de réalisation des figures 2A à 2D, et 3A à 3D, respectivement, le pivot 14 comporte de plus un ou plusieurs ergots de guidage inférieurs 143 faiblement en saillie par rapport au pourtour du pivot, dans une direction faisant un angle de 45° environ avec la verticale et inclinée vers le bas en direction de l'intérieur du cadre ; la distance de l'extrémité libre de ces ergots de guidage 143 à l'axe d'articulation 12 est approximativement égale (généralement légèrement inférieure) à la demi-diagonale du carré circonscrit au cercle définissant la forme de la section transversale droite du pivot.In the embodiments of FIGS. 2A to 2D, and 3A to 3D, respectively, the pivot 14 further comprises one or more guide pins lower 143 slightly protruding from the periphery of the pivot, in a direction making an angle of about 45 ° with the vertical and tilted downwards towards the interior of the frame; the distance from the free end of these pins guide 143 to the hinge pin 12 is approximately equal (generally slightly less) than the half-diagonal of the square circumscribed at circle defining the shape of the right cross section of the pivot.

L'ergot de guidage 143 facilite la fermeture de l'élément 2 et oblige l'ergot de retenue à venir se positionner dans l'évidement correspondant, par suite de sa coopération avec la surface de glissement 232 de la branche inférieure de la fourche lors du mouvement de fermeture ; en outre, dans ces formes de réalisation, la branche supérieure comporte à son extrémité libre, à proximité du fond de l'alvéole 13, une dent 236 en saillie vers le bas quand l'élément 2 est en position de fermeture.The guide pin 143 facilitates the closing of the element 2 and forces the retaining lug to be positioned in the corresponding recess, by following its cooperation with the sliding surface 232 of the branch lower fork during the closing movement; furthermore in these embodiments, the upper branch has at its free end, at near the bottom of the socket 13, a tooth 236 projecting downwards when element 2 is in the closed position.

Cependant, dans ces formes de réalisation, dans l'hypothèse dans laquelle la branche inférieure est à peine plus courte que la branche supérieure, il est possible de retirer l'élément de recouvrement 2 uniquement lorsqu'il est en position presque verticale de pleine ouverture.However, in these embodiments, assuming in which the lower branch is barely shorter than the upper branch, cover element 2 can only be removed when it is in almost vertical position of full opening.

Il existe alors un risque pour un opérateur qui soulève l'élément 2, eu égard à la masse de ce dernier, de trébucher dans l'ouverture du cadre 1 ou de laisser retomber l'élément dans cette ouverture d'accès. Pour éviter ce risque, il est souhaitable que l'élément puisse être soulevé par deux opérateurs aussi horizontalement que peut le permettre la nécessité de conserver un verrouillage efficace (dépose quasi-horizontale).There is then a risk for an operator who raises element 2, eu with regard to the mass of the latter, tripping in the opening of frame 1 or let the element fall back into this access opening. To avoid this risk, it it is desirable that the element can be lifted by two operators too horizontally as may allow the need to maintain a lock efficient (almost horizontal removal).

C'est pourquoi de préférence la branche inférieure est nettement raccourcie, et cela d'autant plus que l'on désire que l'angle entre la position de dépose et la position de fermeture soit faible.This is why preferably the lower branch is clearly shortened, and all the more so since we want the angle between the position of removal and the closing position is weak.

Dans les formes de réalisation représentées sur les figures, afin de permettre que l'élément 2 puisse être déposé de façon quasi-horizontale par translation parallèlement à lui-même dès qu'on lui a fait effectuer un pivotement de 7° environ par rapport à sa position de fermeture (horizontale) pour éviter l'obstacle constitué par le pivot 14, en position de fermeture la branche inférieure a son extrémité libre au-dessous du pivot et de préférence en deçà de l'axe d'articulation, et ainsi la surface de glissement 232 de la branche inférieure s'étend sur une longueur, en direction de l'extrémité libre de la branche, extrêmement courte.In the embodiments shown in the figures, in order to allow element 2 to be deposited almost horizontally by translation parallel to itself as soon as it was made to rotate about 7 ° from its closed position (horizontal) to avoid the obstacle constituted by the pivot 14, in the closed position of the lower branch at its free end below the pivot and preferably below the axis of articulation, and thus the sliding surface 232 of the lower branch extends over a length, towards the free end of the branch, extremely short.

Les surfaces inclinées terminales des évidements situées en vis-à-vis des ergots ont pour avantage, en donnant un peu de jeu, de faire en sorte que les ergots de retenue 141 ne s'opposent pas à la dépose quasi-horizontale ; si l'on ne désire pas obtenir cette dépose quasi-horizontale, ces surfaces inclinées sont inutiles.The terminal inclined surfaces of the recesses located opposite lugs have the advantage, by giving a little play, of ensuring that the retaining pins 141 do not oppose the quasi-horizontal removal; if we do not wish to obtain this quasi-horizontal removal, these inclined surfaces are useless.

Avec une branche inférieure raccourcie, la dépose peut être effectuée depuis un angle faible (environ 7° dans le cas des formes de réalisation représentées), jusqu'à la verticale. En revanche, lorsque l'élément 2 est en position de fermeture (horizontal), il ne peut être enlevé sans avoir subi au préalable une rotation de 7° dans le sens de l'ouverture.With a shortened lower branch, removal can be carried out from a small angle (about 7 ° in the case of the embodiments shown), to the vertical. However, when element 2 is in closed position (horizontal), it cannot be removed without having undergone a 7 ° rotation in the opening direction.

Cette disposition empêche donc l'enlèvement d'éléments de recouvrement sécurisés, c'est-à-dire munis d'un dispositif de verrouillage (loquet ou serrure à l'opposé de la charnière), notamment de tampons de trappes de fosse sécurisés, et empêche de ce fait les actes de vandalisme puisqu'il faut au départ déverrouiller le tampon pour pouvoir l'incliner de 7° en vue de le déposer.This provision therefore prevents the removal of elements from secure covers, i.e. fitted with a locking device (latch or lock opposite the hinge), in particular with hatch buffers secure pit, and thereby prevents acts of vandalism since it takes start unlock the buffer to be able to tilt it by 7 ° in order to remove it.

Claims (10)

Dispositif de fermeture de regard de visite ou d'inspection, comportant un cadre (1), au moins un élément de recouvrement (2) adapté pour être porté par le cadre, ainsi que des moyens d'articulation de l'élément (2) par rapport au cadre (1), les moyens d'articulation comprenant au moins un pivot (14) s'étendant transversalement dans au moins une alvéole (13) ménagée dans une paroi d'entourage (11) du cadre, et au moins un tenon (23) en saillie à la périphérie de l'élément (2), le tenon étant adapté pour s'étendre dans l'alvéole et comportant une fourche munie de deux branches qui, en position de fermeture de l'élément (2) sur le cadre, s'étendent l'une au-dessus du pivot (14) au-delà de celui-ci en direction du fond (15) de l'alvéole (13) et l'autre au-dessous du pivot en deçà de la branche du dessus, caractérisé en ce que la fourche et le pivot comportent en vis-à-vis des surfaces de glissement adaptées pour glisser l'une contre l'autre lors d'un pivotement de l'élément autour du pivot, et l'un des organes que sont la branche du dessus et le pivot comporte au moins un évidement de retenue (234 ; 142) et l'autre au moins un ergot de retenue (141 ; 235) au moins partiellement logé dans l'évidement quand l'élément (2) est en position de fermeture pour empêcher alors une translation de l'élément dans le sens de l'éloignement du tenon (23) du fond (15) de l'alvéole (13) et empêcher ainsi que l'extrémité libre de la branche du dessous vienne en deçà du pivot (14).Device for closing manhole or inspection, comprising a frame (1), at least one covering element (2) suitable for be carried by the frame, as well as means of articulation of the element (2) by relative to the frame (1), the articulation means comprising at least one pivot (14) extending transversely in at least one cell (13) formed in a surrounding wall (11) of the frame, and at least one stud (23) projecting from the periphery of the element (2), the tenon being adapted to extend into the cell and comprising a fork provided with two branches which, in the closed position of the element (2) on the frame, extend one above the pivot (14) beyond this one towards the bottom (15) of the socket (13) and the other below the pivot below the upper branch, characterized in that the fork and the pivot have facing sliding surfaces adapted to slide one against the other when the element is pivoted around the pivot, and one of the organs that are the upper branch and the pivot comprises at least one retaining recess (234; 142) and the other at least one retaining lug (141; 235) at least partially housed in the recess when the element (2) is in closed position to prevent translation of the element in the direction of the distance of the post (23) from the bottom (15) of the cell (13) and prevent and the free end of the branch below comes below the pivot (14). Dispositif selon la revendication 1, caractérisé en ce que la branche s'étendant en position de fermeture au-dessous du pivot (14) a alors son extrémité libre au-dessous du pivot.Device according to claim 1, characterized in that the branch extending in the closed position below the pivot (14) then has its free end below the pivot. Dispositif selon la revendication 1, caractérisé en ce que le pivot (14) présente une forme générale cylindrique centrée sur un axe (12) s'étendant transversalement à l'alvéole (13), et la branche s'étendant en position de fermeture au-dessous du pivot s'étend alors seulement en deçà de l'axe d'articulation.Device according to claim 1, characterized in that the pivot (14) has a generally cylindrical shape centered on an axis (12) extending transversely to the socket (13), and the branch extending in the position of closure below the pivot then extends only below the axis of articulation. Dispositif selon la revendication 1, caractérisé en ce que l'ergot de retenue (141 ; 235) et l'évidement (234 ; 142) présentent des surfaces inclinées en vis-à-vis lorsque l'élément (2) est en position de fermeture. Device according to claim 1, characterized in that the lug retainer (141; 235) and the recess (234; 142) have inclined surfaces opposite when the element (2) is in the closed position. Dispositif selon la revendication 1, caractérisé en ce que le pivot (14) comporte au moins un ergot de guidage (143) en saillie dans une direction inclinée vers le bas et vers l'intérieur du cadre (1).Device according to claim 1, characterized in that the pivot (14) has at least one guide lug (143) projecting in one direction inclined downwards and towards the inside of the frame (1). Dispositif selon la revendication 1, caractérisé en ce que la branche s'étendant en position de fermeture au-dessus du pivot (14) comporte, à son extrémité libre, à proximité du fond (15) de l'alvéole (13), une dent (236) en saillie vers le bas quand l'élément (2) est en position de fermeture.Device according to claim 1, characterized in that the branch extending in the closed position above the pivot (14) comprises, at its free end, near the bottom (15) of the socket (13), a projecting tooth (236) down when the element (2) is in the closed position. Dispositif selon la revendication 1, caractérisé en ce que la branche s'étendant en position de fermeture au-dessus du pivot (14) présente au moins un évidement (234) se prolongeant dans le fond de la fourche, et le pivot (14) présente au moins un ergot (141) de retenue en saillie vers le haut et qui est au moins partiellement logé dans l'évidement quand l'élément (2) est en position de fermeture.Device according to claim 1, characterized in that the branch extending in the closed position above the pivot (14) has at least a recess (234) extending into the bottom of the fork, and the pivot (14) has at least one retaining lug (141) projecting upwards and which is at less partially housed in the recess when the element (2) is in the position of closing. Dispositif selon la revendication 1, caractérisé en ce que la branche s'étendant en position de fermeture au-dessus du pivot (14) présente deux évidements (234) se prolongeant dans le fond de la fourche, creusés dans des régions d'extrémités latérales de cette branche, et deux ergots (141) de retenue en saillie vers le haut et portés par au moins un pivot (14) sont au moins partiellement logés chacun dans un évidement (234) quand l'élément (2) est en position de fermeture.Device according to claim 1, characterized in that the branch extending in the closed position above the pivot (14) has two recesses (234) extending into the bottom of the fork, hollowed out in lateral end regions of this branch, and two retaining lugs (141) projecting upwards and carried by at least one pivot (14) are at least partially housed each in a recess (234) when the element (2) is in closed position. Dispositif selon la revendication 1, caractérisé en ce que le pivot présente au moins un évidement (142) en vis-à-vis du fond (15) de l'alvéole (13), et la branche s'étendant en position de fermeture au-dessus du pivot (14) présente au moins un ergot de retenue (235) qui est au moins partiellement logé dans l'évidement (142) quand l'élément (2) est en position de fermeture.Device according to claim 1, characterized in that the pivot has at least one recess (142) facing the bottom (15) of the cell (13), and the branch extending in the closed position above the pivot (14) has at least one retaining lug (235) which is at least partially housed in the recess (142) when the element (2) is in the closed position. Dispositif selon la revendication 1, caractérisé en ce que le pivot présente un évidement (142) approximativement central en vis-à-vis du fond (15) de l'alvéole (13), et la branche s'étendant en position de fermeture au-dessus du pivot (14) présente un ergot de retenue (235) qui est au moins partiellement logé dans l'évidement (142) quand l'élément (2) est en position de fermeture.Device according to claim 1, characterized in that the pivot has an approximately central recess (142) facing the bottom (15) of the socket (13), and the branch extending in the closed position above the pivot (14) has a retaining lug (235) which is at least partially housed in the recess (142) when the element (2) is in the closed position.
EP00470018A 1999-10-08 2000-10-03 Closing device for a manhole or an inspection shaft Expired - Lifetime EP1091046B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9912581 1999-10-08
FR9912581A FR2799478B1 (en) 1999-10-08 1999-10-08 DEVICE FOR CLOSING A VISIT OR INSPECTION LOOK

Publications (2)

Publication Number Publication Date
EP1091046A1 true EP1091046A1 (en) 2001-04-11
EP1091046B1 EP1091046B1 (en) 2006-01-11

Family

ID=9550721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00470018A Expired - Lifetime EP1091046B1 (en) 1999-10-08 2000-10-03 Closing device for a manhole or an inspection shaft

Country Status (11)

Country Link
EP (1) EP1091046B1 (en)
AR (1) AR028870A1 (en)
AT (1) ATE315690T1 (en)
BR (1) BR0004691A (en)
CY (1) CY1105455T1 (en)
DE (1) DE60025460T2 (en)
DK (1) DK1091046T3 (en)
ES (1) ES2255481T3 (en)
FR (1) FR2799478B1 (en)
PT (1) PT1091046E (en)
ZA (1) ZA200005500B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011070263A1 (en) * 2009-12-11 2011-06-16 Norinco Assembly comprising a frame and a closure cover for the frame, especially for a street manhole
FR2959519A1 (en) * 2010-04-29 2011-11-04 Saint Gobain Pont A Mousson ROAD DEVICE HAVING AN OPENING AND A GUIDE BUFFER BETWEEN AN OPEN POSITION AND A CLOSED POSITION
WO2012171960A1 (en) * 2011-06-16 2012-12-20 Saint-Gobain Pam Street ironwork
CN103469819A (en) * 2013-08-20 2013-12-25 国家电网公司 Anti-theft manhole cover
CN104153395A (en) * 2014-07-31 2014-11-19 长兴绿地建材有限公司 Inspection well lid
CN104452817A (en) * 2014-12-25 2015-03-25 东南大学 Safety inspection well
CN105672454A (en) * 2016-04-03 2016-06-15 张正 Safety anti-theft catch basin

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084510A1 (en) * 1982-01-14 1983-07-27 Robert Dumortier Circular manhole frame with hinged half-covers
GB2134591A (en) * 1982-12-21 1984-08-15 Mk Electric Ltd Pinless hinges
EP0814204A1 (en) * 1996-05-23 1997-12-29 F.A.S.P. Augusto Sbalchiero S.p.A. Improved gully top and manhole top for vehicular and pedestrian areas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB415075A (en) 1933-02-16 1934-08-16 Walter Needham Improvements in or relating to manhole and like covers and grids
FR2780997A1 (en) * 1998-07-13 2000-01-14 Manoir Ind Floating pad for use in water based environment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084510A1 (en) * 1982-01-14 1983-07-27 Robert Dumortier Circular manhole frame with hinged half-covers
GB2134591A (en) * 1982-12-21 1984-08-15 Mk Electric Ltd Pinless hinges
EP0814204A1 (en) * 1996-05-23 1997-12-29 F.A.S.P. Augusto Sbalchiero S.p.A. Improved gully top and manhole top for vehicular and pedestrian areas

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2953867A1 (en) * 2009-12-11 2011-06-17 Norinco FRAME ASSEMBLY AND FRAME CLOSURE PAD, IN PARTICULAR FOR CHAIRING
WO2011070263A1 (en) * 2009-12-11 2011-06-16 Norinco Assembly comprising a frame and a closure cover for the frame, especially for a street manhole
RU2530098C2 (en) * 2010-04-29 2014-10-10 Сэн-Гобэн Пам Road viewing device
FR2959519A1 (en) * 2010-04-29 2011-11-04 Saint Gobain Pont A Mousson ROAD DEVICE HAVING AN OPENING AND A GUIDE BUFFER BETWEEN AN OPEN POSITION AND A CLOSED POSITION
WO2011135260A3 (en) * 2010-04-29 2012-03-22 Saint-Gobain Pam Highway device
US8869452B2 (en) 2010-04-29 2014-10-28 Saint-Gobain Pam Road device
WO2012171960A1 (en) * 2011-06-16 2012-12-20 Saint-Gobain Pam Street ironwork
FR2976600A1 (en) * 2011-06-16 2012-12-21 Saint Gobain Pont A Mousson ROAD DEVICE
US8998528B2 (en) 2011-06-16 2015-04-07 Saint-Gobain Pam Street ironwork
RU2598611C2 (en) * 2011-06-16 2016-09-27 Сэн-Гобэн Пам Road hatch
CN103469819A (en) * 2013-08-20 2013-12-25 国家电网公司 Anti-theft manhole cover
CN103469819B (en) * 2013-08-20 2017-03-01 国家电网公司 A kind of anti-stealing manhole cover
CN104153395A (en) * 2014-07-31 2014-11-19 长兴绿地建材有限公司 Inspection well lid
CN104153395B (en) * 2014-07-31 2016-08-24 长兴绿地建材有限公司 A kind of inspection well cover
CN104452817A (en) * 2014-12-25 2015-03-25 东南大学 Safety inspection well
CN105672454A (en) * 2016-04-03 2016-06-15 张正 Safety anti-theft catch basin

Also Published As

Publication number Publication date
FR2799478A1 (en) 2001-04-13
BR0004691A (en) 2002-12-31
DE60025460T2 (en) 2006-08-24
PT1091046E (en) 2006-05-31
FR2799478B1 (en) 2001-11-09
ZA200005500B (en) 2001-04-23
ATE315690T1 (en) 2006-02-15
AR028870A1 (en) 2003-05-28
DK1091046T3 (en) 2006-05-29
EP1091046B1 (en) 2006-01-11
DE60025460D1 (en) 2006-04-06
ES2255481T3 (en) 2006-07-01
CY1105455T1 (en) 2010-04-28

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