EP0084510A1 - Circular manhole frame with hinged half-covers - Google Patents

Circular manhole frame with hinged half-covers Download PDF

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Publication number
EP0084510A1
EP0084510A1 EP83420005A EP83420005A EP0084510A1 EP 0084510 A1 EP0084510 A1 EP 0084510A1 EP 83420005 A EP83420005 A EP 83420005A EP 83420005 A EP83420005 A EP 83420005A EP 0084510 A1 EP0084510 A1 EP 0084510A1
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EP
European Patent Office
Prior art keywords
posterior
housing
faces
frame
ear
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Granted
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EP83420005A
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German (de)
French (fr)
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EP0084510B1 (en
Inventor
Robert Dumortier
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Fidum Sa Te Givors Frankrijk
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Dumortier Robert
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Priority to AT83420005T priority Critical patent/ATE13568T1/en
Publication of EP0084510A1 publication Critical patent/EP0084510A1/en
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Publication of EP0084510B1 publication Critical patent/EP0084510B1/en
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    • 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

Definitions

  • the invention relates to a circular manhole cover with articulated half-buffers.
  • the manholes are, in general, composed of a frame fixed to the roadway and a removable buffer o To access the well closed by the manhole, it is necessary to remove the buffer. This operation is awkward, whatever the weight of the The same applies to the replacement of the buffer in the frame.
  • the object of the present invention is to provide a manhole cover which, combining the advantages of articulated pads and half-pads resting on three spans in V, without presenting any constructive or use disadvantages, and does not risk generating noises consecutive to bad bearings on the frame.
  • This look is of the type comprising, articulated on a frame, two half-pads each having three radial studs, respectively lateral and posterior, provided at their lower part with corners capable of resting on V-shaped positioning faces made in the ears of the frame.
  • each half-buffer passes through the posterior ear to which it is integral, while the posterior radial post is provided with an internal housing with cam profile whose profile is determined so , that in the closed position, the horizontal axis is not in contact with the housing, but that during opening, it controls the movement of this half-pad, first alone, then on the rest of the movement, in combination with the rear edge of the tampon coming to rest on the wall and on the bottom of the ear.
  • the shape of the housing for the axis therefore makes it possible to give a stable position to the corresponding half-buffer, both when it is in the open position and when it is in the closed position at rest on the V-shaped bearings.
  • the angle formed by the faces of each of the V-shaped housings of the ears is a few degrees less than that of the angle formed by the complementary faces of the corresponding tenon.
  • the contact faces of the different spans are adjusted to each other by matting, which improves the contact and the stability of the half-pad.
  • the energy communicated to it allows these studs to get caught in the V of the frame and thus ensure locking by jamming of this half-buffer.
  • this circular manhole is composed of a frame (2) and two half-buffers (3a-3b) having, in plan view from above, a semi-circular shape.
  • Each pad is provided with three radial studs, namely: a rear articulation stud (4) and two lateral positioning studs (5).
  • the longitudinal axis of the articulation stud (4) is perpendicular to the straight edge (6 ) of the corresponding half-pad, while the longitudinal axes of the two positioning studs (5) are substantially parallel to this straight edge.
  • the two positioning studs (4) are arranged in posterior radial lugs (7) of the frame (2 These two ears are diametrically opposed. As for the positioning studs (5), they penetrate into ears (8), also diametrically opposite and substantially offset by 90 ° with respect to those (7).
  • Each ear (8) is arranged to receive simultaneously the positioning pins (5) of the two half-eyes
  • the positioning studs (5) are provided with contact and positioning faces capable of cooperating with complementary faces formed in the ear (8) corresponding
  • these contact and positioning faces (9a-9b) form a wedge (9) capable of penetrating into the V-shaped housing (10) formed in the corresponding ear (8).
  • the hinge pin (7) is provided, at its base, with two inclined lateral faces (12) giving it a truncated V shape. These faces are intended to cooperate with inclined faces (13) delimiting a V in the bottom of the corresponding ear (7).
  • the angle formed by the faces of each of the V-shaped housings (10) of the ears (8), as well as that formed by the faces (13) of the ears (7), has a value which is a few degrees lower than that of the angle formed by the complementary faces, respectively (9a-9b) and (12), of the corresponding studs.
  • This arrangement allows the contact faces to form by themselves by matting and thus improves the stability of the gaze. Furthermore, it makes it possible to obtain a wedging effect contributing to keeping the half-buffers in the closed position, even when a heavy vehicle passes over the manhole.
  • each articulation pin (4) on the frame (2) is ensured by an axis (14), horizontal, and passing through said ear to which it is integral.
  • This axis can be attached or come from molding with the frame .
  • This axis crosses transversely a housing (15) of the tenon (4), housing whose internal wall has a cam-shaped profile the usefulness of which will be specified below.
  • the housing (15) communicates with the outside by a groove transverse (16) formed in its posterior part and whose opposite faces are separated by a distance (D) at least equal to that (d) separating two flat (14a), parallel and vertical, made on the axis (14).
  • the wall of the housing (15) is arranged so as to do not come into contact with the axis (14).
  • the tenon (4) is in contr support e the upper posterior edge (23) of the ear (7) and, by the face of its housing (15), against the posterior flat (14a) of the axis (14). Thanks to these two contacts, the half-buffer occupies a perfectly stable opening position which prevents it from accidentally closing.
  • the half-pad (3a) has an opening (25) for the passage of a pointed tool such as the pick of a pickaxe, while the half-pad (3b) is provided with a handle (26) facilitating its lifting.
  • the closing operation does not require retaining the half-pad, so that it can be carried out very quickly by simple pushing of this half-pad, which, moreover, facilitates the wedging of the positioning pins (5) in the V (10) and the locking of this half-pad .
  • this manhole cover is very easy to maneuver, both for opening and for closing, ensures the safety of personnel when they are in the open position, without the need for other accessories, and has, in the closed position, excellent stability preventing them to tip over when passing vehicles and, therefore, to generate noise.

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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)
  • Pivots And Pivotal Connections (AREA)

Abstract

Ce regard comporte, articulés sur un cadre (2), deux demi-tampons (3a-3b) présentant, chacun, trois tenons radiaux, respectivement latéraux et postérieur, munis, à leur partie inférieure, de coins (9-12) aptes à reposer sur des faces de positionnement en V(10-13) réalisées dans des oreilles (7-8)du cadre (2). Dans le but de contrôler le mouvement d'ouverture et de fermeture des demi-tampons au moyen d'un mécanisme insensible à l'encrassement par de la terre ou autres déchets tout en donnant aux demi-tampons une bonne stabilité en position de fermeture, l'axe horizontal (14) d'articulation de chaque demi-tampon traverse l'oreille postérieure (7) dont il est solidaire, tandis que le tenon radial postérieur (4) est muni d'un logement interne (15) avec profil en came dont le profil est détermine afin, qu'en position de fermeture, l'axe horizontal (14) soit sans contact avec le logement (15), mais qu'en cours d'ouverture, il contrôle le mouvement de ce demi-tampon, d'abord seul, puis sur le reste du mouvement, en combinaison avec le bord postérieur du tampon venant en appui contre la paroi (22) et sur le fond de l'oreille (7).This look comprises, articulated on a frame (2), two half-buffers (3a-3b) each having three radial studs, respectively lateral and posterior, provided, at their lower part, with corners (9-12) suitable for rest on V-shaped positioning faces (10-13) made in ears (7-8) of the frame (2). In order to control the opening and closing movement of the half-buffers by means of a mechanism insensitive to fouling by earth or other waste while giving the half-buffers good stability in the closed position, the horizontal axis (14) of articulation of each half-buffer passes through the posterior ear (7) of which it is integral, while the posterior radial post (4) is provided with an internal housing (15) with profile cam whose profile is determined so that, in the closed position, the horizontal axis (14) is not in contact with the housing (15), but that during opening, it controls the movement of this half-pad , first alone, then on the rest of the movement, in combination with the posterior edge of the tampon coming to bear against the wall (22) and on the bottom of the ear (7).

Description

L'invention est relative à un regard circulaire de chaussée à demi-tampons articulés.The invention relates to a circular manhole cover with articulated half-buffers.

Les regards de chaussée sont,en général,composés d'un cadre fixé à la chaussée et d'un tampon amovibleoPour accéder au puits obturé par le regard,il faut ôter le tampon.Cette opération est mal commode,quel que soit le poids du tampon.Il en est de même de la remise en place du tampon dans le cadre.The manholes are, in general, composed of a frame fixed to the roadway and a removable buffer o To access the well closed by the manhole, it is necessary to remove the buffer. This operation is awkward, whatever the weight of the The same applies to the replacement of the buffer in the frame.

Par ailleurs,pour éviter le soulèvement du tampon , lors du passage au-dessus de lui d'un véhicule lourd engendrant une forte aspiration verticale,de même que pour éviter tout accident lors de l'ouverture du regard,les tampons,lourds et massifs,calés par leur seul poids,sont remplacés progressivement par des tampons articulés du type décrit dans le brevet britannique 474.250 et dans la demande de brevet français 79.06566.L'usage montre qu'il serait souhaitable,d'une part,de faciliter les manoeuvres d'ouverture et de fermeture des tampons en contrôlant les mouvements de pivotement et,d'autre part, d'éviter que les moyens d'articulation puissent être encrassés par de la terre ou autres déchets pénétrant dans les infractuosités du regard et gênant leur manoeuvre.In addition, to avoid lifting the tampon, when passing over it a heavy vehicle generating a strong vertical suction, as well as to avoid any accident when opening the manhole, the buffers, heavy and massive , wedged by their only weight, are gradually replaced by articulated buffers of the type described in British patent 474,250 and in French patent application 79,06566. Usage shows that it would be desirable, on the one hand, to facilitate maneuvers opening and closing of the buffers by controlling the pivoting movements and, on the other hand, avoiding that the articulation means can be clogged with earth or other waste penetrating into the infractuosities of the gaze and hampering their operation .

On connait par ailleurs,notamment par le brevet américain 2.997.932 ,des regards comprenant deux demi-tampons qui,ayant chacun la forme d'un triangle rectangle isocèle,sont juxtaposés sur le cadre par leur hypoténuse et sont munis,dans le prolongement de celle-ci et dans celui de leur angle droit,de pattes radiales de section trapézoïdale reposant sur des portées de section complémentaire en V.Par cette disposition,chaque demi-tampon ne repose sur le cadre qu'en trois points,ce qui lui donne une excellente stabilité et l'empêche d'engendrer des bruits au passage de véhicules lourds.We also know, in particular by American patent 2,997,932, manholes comprising two half-buffers which, each having the shape of an isosceles right triangle, are juxtaposed on the frame by their hypotenuse and are provided, in the extension of this one and in that of their right angle, of radial legs of trapezoidal section resting on spans of complementary section in V. By this arrangement, each half-pad only rests on the frame in three points, which gives it excellent stability and prevents it from generating noise when passing heavy vehicles.

La présente invention a pour but de fournir un regard de chaussée qui,associant les avantages des tampons articulés et des demi-tampons reposant sur trois portées en V,sans pour autant présenter d'inconvénients constructifs ou à l'usage,et ne risque pas d'engendrer de bruits consécutifs à de mauvaises portées sur le cadre.The object of the present invention is to provide a manhole cover which, combining the advantages of articulated pads and half-pads resting on three spans in V, without presenting any constructive or use disadvantages, and does not risk generating noises consecutive to bad bearings on the frame.

Ce regard est du type comportant,articulés sur un cadre,deux demi-tampons présentant ,chacun,trois tenons radiaux,respectivement latéraux et postérieur,munis à leur partie inférieure de coins aptes à reposer sur des faces de positionnement en V réalisées dans les oreilles du cadre.This look is of the type comprising, articulated on a frame, two half-pads each having three radial studs, respectively lateral and posterior, provided at their lower part with corners capable of resting on V-shaped positioning faces made in the ears of the frame.

Selon l'invention,l'axe horizontal d'articulation de chaque demi-tampon traverse l'oreille postérieure dont il est solidaire, tandis que le tenon radial postérieur est muni d'un logement interne avec profil en came dont le profil est déterminé afin,qu'en position de fermeture, l'axe horizontal soit sans contact avec le logement,mais qu'en cours d'ouverture,il contrôle le mouvement de ce demi-tampon,d'abord seul,puis sur le reste du mouvement, en combinaison avec le bord postérieur du tampon venant en appui sontre la paroi et sur le fond de l'oreille .According to the invention, the horizontal axis of articulation of each half-buffer passes through the posterior ear to which it is integral, while the posterior radial post is provided with an internal housing with cam profile whose profile is determined so , that in the closed position, the horizontal axis is not in contact with the housing, but that during opening, it controls the movement of this half-pad, first alone, then on the rest of the movement, in combination with the rear edge of the tampon coming to rest on the wall and on the bottom of the ear.

La forme du logement pour l'axe permet donc de donner une position stable au demi-tampon correspondant,tant lorsqu'il est en position d'ouverture que lorsqu'il est en position de fermeture au repos sur les portées en V.The shape of the housing for the axis therefore makes it possible to give a stable position to the corresponding half-buffer, both when it is in the open position and when it is in the closed position at rest on the V-shaped bearings.

Avantageusement,l'angle formé par les faces de chacun des logements en V des oreilles est inférieur de quelques degrés à celui de l'angle formé par les faces complémentaires du tenon correspondant.Advantageously, the angle formed by the faces of each of the V-shaped housings of the ears is a few degrees less than that of the angle formed by the complementary faces of the corresponding tenon.

Grâce à cette disposition,les faces de contact des différentes portées s'ajustent les unes aux autres par matage,ce qui améliore le contact et la stabilité du demi-tampon.De plus,lorsque le demi-tampon est basculé de sa position d'ouverture à sa position de fermeture sans être retenu,l'énergie qui lui est communiquée permet à ces tenons de se coincer dans les V du cadre et d'assurer ainsi le verrouillage par coincement de ce demi-tampon.Thanks to this arrangement, the contact faces of the different spans are adjusted to each other by matting, which improves the contact and the stability of the half-pad. In addition, when the half-pad is tilted from its position opening to its closed position without being retained, the energy communicated to it allows these studs to get caught in the V of the frame and thus ensure locking by jamming of this half-buffer.

D'autres caractéristiques et avantages ressortiront de la description qui suit en référence au dessin schématique annexé représentant,à titre d'exemple non limitatif,une forme d'exécution de ce regard de chaussée.Other characteristics and advantages will emerge from the description which follows with reference to the drawing diagram. attached tick representing, by way of nonlimiting example, an embodiment of this manhole cover.

  • Figure 1 en est une vue partielle en perspective, l'un des demi-tampons étant en position d'ouverture, l'autre en position de fermeture,FIG. 1 is a partial perspective view thereof, one of the half-pads being in the open position, the other in the closed position,
  • Figure 2 est une vue partielle de côté montrant,en coupe et à échelle agrandie,une forme d'exécution du logement ménagé dans le cadre pour recevoir le tenon d'articulation,FIG. 2 is a partial side view showing, in section and on an enlarged scale, an embodiment of the housing provided in the frame for receiving the hinge pin,
  • Figure 3 est une vue partielle de côté montrant,à échelle agrandie,le logement réalisé dans le tenon d'articulation ,FIG. 3 is a partial side view showing, on an enlarged scale, the housing produced in the hinge pin,
  • Figures 4 à 8 sont des vues partielles de côté en coupe montrant,pour différentes positions d'un demi-tampon articulé,les zones de contact du logement du tenon d'articulation avec l'axe de l'oreille.Figures 4 to 8 are partial side views in section showing, for different positions of an articulated half-pad, the contact zones of the housing of the hinge pin with the axis of the ear.

Comme montré à la figure 1,ce regard circulaire est composé d'un cadre(2)et de deux demi-tampons (3a-3b) présentant,vue en plan par-dessus,une forme semi-circulaire. Chaque tampon est muni de trois tenons radiaux,à savoir: un tenon postérieur d'articulation (4) et deux tenons latéraux de positionnement (5).L'axe longitudinal du tenon d'articulation (4) est perpendiculaire au bord rectiligne (6) du demi-tampon correspondant,tandis que les axes longitudinaux des deux tenons de positionnement (5) sont sensiblement parallèles de ce bord rectiligne.Les deux tenons de positionnement (4) sont disposés dans des oreilles radiales postérieures (7) du cadre (2).Ces deux oreilles sont diamétralement opposées.Quant aux tenons de positionnement (5),ils pénètrent dans des oreilles (8) ,également diamétralement opposées et sensiblement décalées de 90° par rapport à celles (7).Chaque oreille (8) est agencée de manière à recevoir simultanément les tenons de positionnement (5) des deux demi-regardsoAs shown in Figure 1, this circular manhole is composed of a frame (2) and two half-buffers (3a-3b) having, in plan view from above, a semi-circular shape. Each pad is provided with three radial studs, namely: a rear articulation stud (4) and two lateral positioning studs (5). The longitudinal axis of the articulation stud (4) is perpendicular to the straight edge (6 ) of the corresponding half-pad, while the longitudinal axes of the two positioning studs (5) are substantially parallel to this straight edge. The two positioning studs (4) are arranged in posterior radial lugs (7) of the frame (2 These two ears are diametrically opposed. As for the positioning studs (5), they penetrate into ears (8), also diametrically opposite and substantially offset by 90 ° with respect to those (7). Each ear (8) is arranged to receive simultaneously the positioning pins (5) of the two half-eyes

Les tenons de positionnement (5) sont munis de faces de contact et de positionnement aptes à coopérer avec des faces complémentaires ménagées dans l'oreille (8) correspondante.Dans la forme d'exécution représentée,ces faces de contact et de positionnement (9a-9b) forment un coin (9) apte à pénétrer dans le logement en V (10) ménagé dans l'oreille (8) correspondante.De même,le tenon d'articulation (7) est muni,à sa base,de deux faces latérales inclinées (12) lui donnant une forme en V tronqué.Ces faces sont destinées à coopérer avec des faces inclinées (13) délimitant un V dans le fond de l'oreille (7) correspondante.The positioning studs (5) are provided with contact and positioning faces capable of cooperating with complementary faces formed in the ear (8) corresponding In the embodiment shown, these contact and positioning faces (9a-9b) form a wedge (9) capable of penetrating into the V-shaped housing (10) formed in the corresponding ear (8). Similarly, the hinge pin (7) is provided, at its base, with two inclined lateral faces (12) giving it a truncated V shape. These faces are intended to cooperate with inclined faces (13) delimiting a V in the bottom of the corresponding ear (7).

L'angle formé par les faces de chacun des logements en V (10) des oreilles (8),de même que celui formé par les faces (13) des oreilles (7),a une valeur qui est inférieure de quelques degrés à celle de l'angle formé par les faces complémentaires,respectivement (9a-9b) et (12), des tenons correspondants.Cette disposition permet aux faces de contact de se former d'elles-mêmes par matage et améliore ainsi la stabilité du regard.Par ailleurs,elle permet d'obtenir un effet de coincement contribuant à maintenir les demi-tampons en position fermée,même lorsqu' un véhicule de fort tonnage passe sur le regard.The angle formed by the faces of each of the V-shaped housings (10) of the ears (8), as well as that formed by the faces (13) of the ears (7), has a value which is a few degrees lower than that of the angle formed by the complementary faces, respectively (9a-9b) and (12), of the corresponding studs. This arrangement allows the contact faces to form by themselves by matting and thus improves the stability of the gaze. Furthermore, it makes it possible to obtain a wedging effect contributing to keeping the half-buffers in the closed position, even when a heavy vehicle passes over the manhole.

L'articulation de chaque tenon d'articulation (4) sur le cadre (2) est assurée par un axe (14) ,horizontal,et traversant ladite oreille dont il est solidaire.Cet axe peut être rapporté ou venir de moulage avec le cadre.Cet axe traverse transversalement un logement (15) du tenon (4),logement dont la paroi interne a un profil en forme de came dont l'utilité sera précisée plus loin.Le logement (15) communique avec l'extérieur par une rainure transver- dale (16) ménagée dans sa partie postérieure et dont les faces en vis-à-vis sont séparées par une distance (D) au moins égale à celle (d) séparant deux méplats (14a),parallèles et verticaux,réalisés sur l'axe (14). Cet agencement permet de retirer les demi-tampons en cas de besoin,mais aussi de les remplacer facilement s'ils sont détériorés ou partiellement cassés.The articulation of each articulation pin (4) on the frame (2) is ensured by an axis (14), horizontal, and passing through said ear to which it is integral. This axis can be attached or come from molding with the frame .This axis crosses transversely a housing (15) of the tenon (4), housing whose internal wall has a cam-shaped profile the usefulness of which will be specified below. The housing (15) communicates with the outside by a groove transverse (16) formed in its posterior part and whose opposite faces are separated by a distance (D) at least equal to that (d) separating two flat (14a), parallel and vertical, made on the axis (14). This arrangement makes it possible to remove the half-pads if necessary, but also to easily replace them if they are damaged or partially broken.

Comme montré plus en détail à la figure 4 et dans le but de ne pas perturber la stabilité de chaque demi-tampon assurée par ses trois portées en V et,surtout,de ne pas perturber la portée en V du tenon d'articulation (4) dans le fond de l'oreille (7),la paroi du logement (15) est agencée de manière à ne pas venir en contact avec l'axe (14).As shown in more detail in Figure 4 and in order not to disturb the stability of each half-pad ensured by its three V-shaped surfaces and, above all, not to disturb the V-shaped range of the hinge pin (4) in the bottom of the ear (7), the wall of the housing (15) is arranged so as to do not come into contact with the axis (14).

Lorsque l'un des demi-tampons est manoeuvré dans le sens de l'ouverture,il est soumis simultanément à une translation dans le sens de la flèche (20) de figure 5 jusqu'à ce que l'axe (14) vienne en contact avec la partie postérieure du profil en came du logement (15),comme montré à cette figure.A partir de ce moment,le pivotement s'effectue autour de la partie inférieure de l'axe (14) jusqu'à ce que le bord postérieur (21) du tenon (4) rencontre la paroi postérieure (22) de l'oreille (7),comme montré figure 5.A ce stade,le pivotement est guidé par le contact du bord (21) sur la paroi (22) jusqu'à ce que, comme montré à la figure 6,la partie supérieure de l'axe (14) vienne en contact avec le profil supérieur du logement (15),puis avec le profil antérieur (figure 7) pour contrôler le pivotement .Dès que le regard dépasse la position verticale,il prend une position inclinée au-delà de celle-ci,de l'ordre de 18 à 15°.Dans cette position, comme montré figure 8,le tenon (4) est en appui contre l'arête postérieure supérieure (23) de l'oreille (7) et, par la-face de son logement (15),contre le méplat postérieur (14a) de l'axe (14).Grâce à ces deux contacts, le demi-tampon occupe une position d'ouverture parfaitement stable qui l'empêche de se refermer accidentellement.When one of the half-buffers is operated in the opening direction, it is simultaneously subjected to a translation in the direction of the arrow (20) in FIG. 5 until the axis (14) comes into contact with the rear part of the cam profile of the housing (15), as shown in this figure. From this moment, the pivoting takes place around the lower part of the axis (14) until the posterior edge (21) of the post (4) meets the posterior wall (22) of the ear (7), as shown in FIG. 5. At this stage, the pivoting is guided by the contact of the edge (21) on the wall ( 22) until, as shown in FIG. 6, the upper part of the axis (14) comes into contact with the upper profile of the housing (15), then with the anterior profile (FIG. 7) to control the pivoting. As soon as the gaze exceeds the vertical position, it takes an inclined position beyond this, of the order of 18 to 15 °. In this position, as shown in FIG. 8, the tenon (4) is in contr support e the upper posterior edge (23) of the ear (7) and, by the face of its housing (15), against the posterior flat (14a) of the axis (14). Thanks to these two contacts, the half-buffer occupies a perfectly stable opening position which prevents it from accidentally closing.

Il est évident que,dans le mouvement de fermeture, les différentes parties du logement (15) coopèrent de façon inverse avec l'axe (14).Il faut cependant noter, qu'à la fin du mouvement de fermeture,l'introduction des tenons de positionnement (5) dans les V (10),provoque le déplacement transversal du demi-tampon afin que le logement (15) occupe la position dans laquelle,comme montré figure 4,sa paroi est sans contact avec l'axe (14) pour ne pas perturber la portée des faces inclinées (12)sur celles (13) de l'oreille (7).It is obvious that, in the closing movement, the different parts of the housing (15) cooperate in reverse with the axis (14). It should however be noted that at the end of the closing movement, the introduction of the positioning lugs (5) in the V (10), causes the half-buffer to move transversely so that the housing (15) occupies the position in which, as shown in FIG. 4, its wall is in contact with the axis (14 ) so as not to disturb the range of the inclined faces (12) on those (13) of the ear (7).

Comme montré figure 1,le demi-tampon (3a) comporte une ouverture (25) pour le passage d'un outil pointu tel que le pic d'une pioche,tandis que le demi-tampon (3b) est muni d'une poignée (26) facilitant son soulèvement.As shown in Figure 1, the half-pad (3a) has an opening (25) for the passage of a pointed tool such as the pick of a pickaxe, while the half-pad (3b) is provided with a handle (26) facilitating its lifting.

Il est à noter que,grâce au bon guidage du basculement assuré par la coopération des différentes parties de l'axe (14) avec le profil du logement (15),la manoeuvre de fermeture n'exige pas de retenir le demi-tampon,de sorte qu'elle peut s'effectuer très rapidement par simple poussée de ce demi-tampon,ce qui,par ailleurs,facilite le coincement des tenons de positionnement(5)dans le V(10) et le verrouillage de ce demi-tampon.It should be noted that, thanks to the correct guiding of the tilting ensured by the cooperation of the different parts of the axis (14) with the profile of the housing (15), the closing operation does not require retaining the half-pad, so that it can be carried out very quickly by simple pushing of this half-pad, which, moreover, facilitates the wedging of the positioning pins (5) in the V (10) and the locking of this half-pad .

Il ressort de ce qui précède que,grâce à sa structure et,notamment,au recours de deux tenons de positionnement et à un tenon d'articulation muni d'un profil en came coopérant avec l'axe de rotation,ce regard de chaussée est très facile à manoeuvrer,tant pour l'ouverture que pour la fermeture,assure la sécurité du personnel lorsqu'il est en position ouverte,sans avoir besoin d'autres accessoires,et présente,en position de fermeture,une excellente stabilité l'empêchant de basculer lors de passages de véhicules et,donc,d'engendrer des bruits.It follows from the above that, thanks to its structure and, in particular, to the use of two positioning pins and to an articulation pin provided with a cam profile cooperating with the axis of rotation, this manhole cover is very easy to maneuver, both for opening and for closing, ensures the safety of personnel when they are in the open position, without the need for other accessories, and has, in the closed position, excellent stability preventing them to tip over when passing vehicles and, therefore, to generate noise.

En outre,grâce à l'obturation totale des oreilles (7) par le5 tenons (4) correspondants,l'articulation de chaque demi-tampon est protégée et ne risque pas d'être encrassée par de la terre ou autres déchets ,comme c'est le cas dans les autres tampons,ce qui garantit le bon fonctionnement du tampon dans le tempsoIn addition, thanks to the total closure of the ears (7) by the corresponding 5 pins (4), the articulation of each half-pad is protected and does not risk being clogged with earth or other waste, such as c is the case in the other buffers, which guarantees the good functioning of the buffer in tempso

Claims (3)

1-Regard circulaire de chaussée du type comportant, articulés sur un cadre (2),deux demi-tampons (3a-3b) présentant,chacun,trois tenons radiaux respectivement latéraux et postérieur,munis,à leur partie inférieure,de coins (9-12) aptes à reposer sur des faces de positionnement en V (10-13) réalisées dans des oreilles (7-8) du cadre (2), caractérisé en ce que l'axe horizontal (14) d'articulation de chaque demi-tampon traverse l'oreille postérieure (7) dont il est solidaire ,tandis que le tenon radial postérieur (4) est muni d'un logement interne (15) avec profil en came dont le profil est déterminé afin,qu'en position de fermeture,l'axe horizontal (14) soit sans contact avec le logement (15) ,mais qu'en cours d'ouverture,il contrôle le mouvement de ce demi-tampon,d'abord seul,puis sur le reste du mouvement,en combinaison avec le bord postérieur du tampon venant en appui contre la paroi (22) et sur le fond de l'oreille (7).1-Circular manhole cover of the type comprising, articulated on a frame (2), two half-buffers (3a-3b) each having three radial studs, lateral and rear respectively, provided with corners (9 -12) able to rest on V-shaped positioning faces (10-13) produced in ears (7-8) of the frame (2), characterized in that the horizontal axis (14) of articulation of each half -tampon crosses the posterior ear (7) of which it is integral, while the posterior radial post (4) is provided with an internal housing (15) with cam profile whose profile is determined so that in the position of closing, the horizontal axis (14) is without contact with the housing (15), but that during opening, it controls the movement of this half-pad, first alone, then on the rest of the movement, in combination with the rear edge of the tampon bearing against the wall (22) and on the bottom of the ear (7). 2-Regard selon la revendication 1,caractérisé en ce que le logement (15),ménagé dans le tenon d'articulation (4) de chaque demi-tampon (3a-3b) communique,avec l'extérieur,par une rainure transversale (16) ménagée dans sa partie postérieure et présentant des faces en vis-à-vis séparées par une distance (D) ,au moins égale à celle (d) séparant deux méplats (14a) ,parallèles et verticaux,réalisés sur l'axe d'articulation (14).2-manhole according to claim 1, characterized in that the housing (15), formed in the hinge pin (4) of each half-pad (3a-3b) communicates with the outside by a transverse groove ( 16) formed in its posterior part and having opposite faces separated by a distance (D), at least equal to that (d) separating two flat (14a), parallel and vertical, produced on the axis d hinge (14). 3-Regard selon les revendications 1 et 2,caractérisé en ce que l'angle formé par les faces de chacun des logements en V des oreilles (7-8)est inférieur de quelques degrés à celui de l'angle formé par les faces complémentaires (12) et (9a-9b) du tenon (4-5)correspondant.3-manhole according to claims 1 and 2, characterized in that the angle formed by the faces of each of the V-shaped housings of the ears (7-8) is a few degrees less than that of the angle formed by the complementary faces (12) and (9a-9b) of the corresponding post (4-5).
EP83420005A 1982-01-14 1983-01-12 Circular manhole frame with hinged half-covers Expired EP0084510B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83420005T ATE13568T1 (en) 1982-01-14 1983-01-12 CIRCULAR MANHOLE COVER WITH HINGED HALF LID.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8200769A FR2519665A1 (en) 1982-01-14 1982-01-14 CIRCULAR LOOK AT ARTICULATED HALF-BUFFER PAVEMENT
FR8200769 1982-01-14

Publications (2)

Publication Number Publication Date
EP0084510A1 true EP0084510A1 (en) 1983-07-27
EP0084510B1 EP0084510B1 (en) 1985-05-29

Family

ID=9270115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420005A Expired EP0084510B1 (en) 1982-01-14 1983-01-12 Circular manhole frame with hinged half-covers

Country Status (6)

Country Link
US (1) US4508469A (en)
EP (1) EP0084510B1 (en)
AT (1) ATE13568T1 (en)
CA (1) CA1218552A (en)
DE (1) DE3360209D1 (en)
FR (1) FR2519665A1 (en)

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FR2554474A1 (en) * 1983-11-08 1985-05-10 Dumortier Robert Road manhole with articulated circular cover lockable by wedging
EP0349752A1 (en) * 1988-07-05 1990-01-10 Von Roll Ag Covering of a manhole by means of a lid or a grating
GB2226841A (en) * 1988-12-14 1990-07-11 Glynwed Consumer & Building Cover and frame assembly for access opening
GB2243638A (en) * 1990-05-01 1991-11-06 Stanton Plc Restraining lateral movement of manhole cover
GB2353557A (en) * 1999-04-30 2001-02-28 James Stuart Austin Trench safety cover
EP1091046A1 (en) * 1999-10-08 2001-04-11 Saint-Gobain Pam Closing device for a manhole or an inspection shaft
EP1910626B2 (en) † 2005-07-27 2014-09-10 EJ Emea Device for articulating a stopper or lid to a frame in particular of a man hole
EP1826320B2 (en) † 2006-02-28 2015-10-28 Saint-Gobain PAM Frame and corresponding road device
ES2649742A1 (en) * 2016-07-14 2018-01-15 Fundiciones Y Proyectos Fernandez, S.L. Registration closure (Machine-translation by Google Translate, not legally binding)
DE10357542B4 (en) 2003-12-10 2019-03-21 Heinrich Meier Eisengiesserei Gmbh & Co Kg Concealed hinge arrangement of a manhole cover
EP3492658A1 (en) * 2017-10-24 2019-06-05 Wrekin Holdings Limited A ground surface access assembly with safety features

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US6276093B1 (en) * 1999-11-15 2001-08-21 Lawrence M. Janesky Air-tight sump cover with water inlet
FR2812008B1 (en) 2000-07-18 2002-10-25 Fmc Corp SHUTTERING DEVICE WITH SIMPLIFIED STRUCTURE
FR2815979B1 (en) 2000-10-27 2003-01-03 Norinco BLINDING DEVICE HAVING A REMOVABLE ARTICULATED PANEL WITH SIMPLIFIED PLACEMENT
FR2821868B1 (en) 2001-03-08 2003-12-05 Norinco INCREASED SECURITY SHUTTER
US7048468B2 (en) * 2001-09-21 2006-05-23 Aco Serverin Ahlmann Gmbh & Co. Kg Cover arrangement
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KR100511465B1 (en) * 2002-03-19 2005-08-30 심규민 Manhole cover assembly with locking means
GB2391245B (en) * 2002-05-21 2005-10-26 Savage Peter Ltd A manhole cover or gully grating
US6929142B2 (en) * 2002-07-29 2005-08-16 Ast Services Llc Removable hatch cover for an internal floating roof manway
DE10252185C5 (en) * 2002-11-09 2008-12-11 Buderus Kanalguss Gmbh Manhole cover or attachment
US7543602B2 (en) * 2003-04-07 2009-06-09 Wcm Industries, Inc. Round wall-mounted hydrant housing for freezeless wall hydrants and method of installation thereof
GB0330271D0 (en) * 2003-12-31 2004-02-04 Saint Gobain Pipelines Plc A covering for an access aperture,and related assemblies
US20060042174A1 (en) * 2004-08-30 2006-03-02 Tuf-Tite, Inc. Modular riser base
US7770333B2 (en) * 2004-10-15 2010-08-10 Tuf-Tite, Inc. Adapter ring for on-site waste treatment or drainage systems
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GB2421754A (en) 2004-12-29 2006-07-05 Saint Gobain Pipelines Plc Manhole assembly
US7347644B2 (en) * 2005-08-04 2008-03-25 Tuf-Tite, Inc. Multi-use adapter ring for stackable riser components for on-site waste systems
FR2897371B1 (en) * 2006-02-14 2009-07-03 Norinco Sa DEVICE FOR SEALING A FRAME, COMPRISING A REMOVABLE HINGED MOUNTED PANEL ON THE FRAME
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US10000221B2 (en) * 2014-07-14 2018-06-19 Macton Corporation Pit cover
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GB474250A (en) * 1936-05-02 1937-10-28 Cyril John Hartley Improvements in and relating to manhole covers and frames
US2997932A (en) * 1957-08-06 1961-08-29 William W Taylor Manhole structure
US3130651A (en) * 1960-08-23 1964-04-28 Neenah Foundry Company Mounting for hinged covers
FR2453944A1 (en) * 1979-03-15 1980-11-07 Guillaumin Jean Claude Manhole cover for drains or service conduits - is cast in two parts with notches resting on inclined wedges and extensions permitting pivoting about horizontal axis

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554474A1 (en) * 1983-11-08 1985-05-10 Dumortier Robert Road manhole with articulated circular cover lockable by wedging
EP0349752A1 (en) * 1988-07-05 1990-01-10 Von Roll Ag Covering of a manhole by means of a lid or a grating
GB2226841A (en) * 1988-12-14 1990-07-11 Glynwed Consumer & Building Cover and frame assembly for access opening
GB2243638A (en) * 1990-05-01 1991-11-06 Stanton Plc Restraining lateral movement of manhole cover
GB2353557A (en) * 1999-04-30 2001-02-28 James Stuart Austin Trench safety cover
EP1091046A1 (en) * 1999-10-08 2001-04-11 Saint-Gobain Pam Closing device for a manhole or an inspection shaft
FR2799478A1 (en) 1999-10-08 2001-04-13 Pont A Mousson DEVICE FOR CLOSING A VISIT OR INSPECTION LOOK
DE10357542B4 (en) 2003-12-10 2019-03-21 Heinrich Meier Eisengiesserei Gmbh & Co Kg Concealed hinge arrangement of a manhole cover
EP1910626B2 (en) † 2005-07-27 2014-09-10 EJ Emea Device for articulating a stopper or lid to a frame in particular of a man hole
EP1826320B2 (en) † 2006-02-28 2015-10-28 Saint-Gobain PAM Frame and corresponding road device
ES2649742A1 (en) * 2016-07-14 2018-01-15 Fundiciones Y Proyectos Fernandez, S.L. Registration closure (Machine-translation by Google Translate, not legally binding)
EP3492658A1 (en) * 2017-10-24 2019-06-05 Wrekin Holdings Limited A ground surface access assembly with safety features

Also Published As

Publication number Publication date
EP0084510B1 (en) 1985-05-29
FR2519665A1 (en) 1983-07-18
DE3360209D1 (en) 1985-07-04
CA1218552A (en) 1987-03-03
ATE13568T1 (en) 1985-06-15
FR2519665B1 (en) 1984-08-24
US4508469A (en) 1985-04-02

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