EP0668409A1 - Manhole cover grating - Google Patents

Manhole cover grating Download PDF

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Publication number
EP0668409A1
EP0668409A1 EP95400335A EP95400335A EP0668409A1 EP 0668409 A1 EP0668409 A1 EP 0668409A1 EP 95400335 A EP95400335 A EP 95400335A EP 95400335 A EP95400335 A EP 95400335A EP 0668409 A1 EP0668409 A1 EP 0668409A1
Authority
EP
European Patent Office
Prior art keywords
bars
grid
frame
bar
lug
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
EP95400335A
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German (de)
French (fr)
Other versions
EP0668409B1 (en
Inventor
Christian René Georges Fumalle
Pascal Georges Adrien Lacroix
Jean-Jacques Maurice Monneret
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Norinco SA
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Norinco SA
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Publication date
Application filed by Norinco SA filed Critical Norinco SA
Publication of EP0668409A1 publication Critical patent/EP0668409A1/en
Application granted granted Critical
Publication of EP0668409B1 publication Critical patent/EP0668409B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06—Gully gratings
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06—Gully gratings
    • E03F2005/065—Gully gratings with elastic locking elements

Definitions

  • the present invention relates to a grid allowing the shutter of manholes for example.
  • the outer edge of the grid is generally a solid edge coming into contact with the frame and constituting an additional obstacle to the passage of water through the grid.
  • the invention therefore aims to remedy all the above drawbacks by proposing a grid with elastic mounting in a frame, having all the requisite qualities of solidity and reliability, and capable of letting through or absorbing a maximum amount of water passing over this grid.
  • the subject of the invention is a grid intended to be mounted in a frame for closing a manhole cover and comprising intersecting bars, at least one of the end bars of the grid being elastically deformable relative to the other bars so that the grid is fixed elastically in the frame, characterized in that said end bar is secured to the grid only by its two ends between which is provided at least one hookable lug in a notch or the like formed in the framework.
  • the aforementioned end bar is provided with at least one abutment element with respect to the frame and the adjacent bar.
  • the aforementioned lug is located between two abutment elements projecting on either side of the end bar and capable of cooperating each with a corresponding stop provided on the adjacent bar.
  • the grid of this invention is further characterized by a sheet of parallel bars comprising the two aforementioned end bars and comprising, between the transverse bars, studs or the like projecting towards the outside of the grid.
  • the aforementioned transverse bars form an additional thickness on the ply of parallel bars, and the abutment elements of the two end bars constitute an extension of this additional thickness.
  • the lug integral with the aforementioned end bars cooperates with a ramp associated with the notch formed in the frame, when the grid is placed in this frame.
  • Figure 1 is a plan and top view of a grid according to the invention illustrated in the mounted position in a frame.
  • Figure 2 is a sectional view along line II-II of Figure 1.
  • Figure 3 is another sectional view of the grid, taken along line III-III of Figure 1.
  • FIG. 4 is a sectional view of the system for attaching the grid to the frame, along the line IV-IV of FIG. 1.
  • a grid according to this invention essentially comprises a sheet of parallel bars 1 coming from the foundry with parallel transverse bars 2, the grid being mounted in a frame 3 integral with a roadway (not shown).
  • the ply of parallel bars 1 has at its two ends a bar 4 which is elastically deformable relative to the other bars 1 and which allows the grid to be fixed to the frame 3.
  • these two end bars 4 are integral with the remaining part of the grid by their two ends 5 only.
  • a lug 6 is provided, better visible in FIG. 4, and capable of cooperating with a notch or the like 7 made in the frame 3.
  • the frame 3 comprises a part in the form of a ramp 8 leading to the notch 7 and with which the lug 6 can cooperate, on each side of the grid, to allow the grid to be placed in the frame 3, as will be explained in more detail far.
  • each elastic end bar 4 is located between two abutment elements 9 with respect to the frame 3 and the adjacent bar 1. More precisely, as can be seen in FIG. 1, the elements of stop 9 protrude on either side of the end bar 4 so as to cooperate, on the one hand, directly with the edge 3a of the frame 3, and on the other hand, with a corresponding stop 10 provided on the bar 1 adjacent to the end elastic bars 4.
  • end bars 4 can be resisted elastically between the ends 5 which connect these bars 4 to the grid, it being understood that the stroke of the elastic movement is limited by the stop elements 9 cooperating on one side with the frame 3 and on the other side with the stop 10 of the adjacent bar 1.
  • the parallel bars 1 comprise, between the transverse bars 2 small studs or the like 11 projecting towards the outside of the grid.
  • the studs 11 will advantageously allow the separation of the water nets into several nets, as shown by the arrows 12, so that the grid will offer thus less resistance to water retention and will therefore absorb a maximum amount of water through the interstices between the bars.
  • the bars 2 transverse to the bars 1 form an extra thickness 13 on the ply of parallel bars 1, as can be seen in FIG. 2.
  • the abutment elements 9 projecting on either side of each end bar 4 constitute, in a way, an extension of the extra thickness 13.
  • the extra thickness 13 presented by the transverse bars 2 will constitute a barrier to the water flowing on the grid according to the arrow marked Y in FIG. 1, so that the water will be caused to pass through the grid between the interstices formed between the bars 1 and 2.
  • the water streams pass above the excess thickness 13 of the bars 2, they will then also be broken or separated by the studs 11 of the bars 1.
  • the opposite ends 1a of the parallel bars 1, as well as the opposite ends 4a of the last bars 4 which are elastically deformable, constitute free ends coming directly to abut on the internal edge 3a of the frame 3.
  • the water as soon as it passes the frame 3, necessarily falls into the holes formed between the frame 3, two adjacent free ends 1a of the bars 1 and a bar 2.
  • the free ends 1a, 4a advantageously limits the 'extent of the upper face of the grid, and therefore its capacity is reduced to allow the retention and sliding of water.
  • the grid does not have a solid outer edge capable of retaining the water flowing along the arrows X and / or Y.
  • the frame 3 being set up and fixed on a floor for example, it suffices to position the grid which has just been described to the right of the frame.
  • the elastic deformation of the bars 4 will be limited by the stop elements 9 cooperating with the corresponding stops 10 of the adjacent bar.
  • the elastic deformation of the bars 4 will advantageously be controlled, which will prevent any deterioration of the grid.
  • the grid of the invention can include any number of bars, studs such as 11 and cooperating stops making it possible to limit the deformation stroke of the last bars of the grid, it being understood that the stops can be omitted.

Abstract

The grating fits into a frame (3) set in the rod, and has end bars (4) which are elastically deformable relative to the other bars (1,2) so that the grating is fitted elastically in the frame. The deformable end bar is connected to the remainder of the grating only by its two ends, between which it has a lug to engage with a notch (7) in the frame; it also has two thrust elements (9) which can interact with the frame and the adjacent bar (1) of the grating. The grating can be made with a deformable bar at each end and a series of parallel main bars between them, joined to the end bars by two transverse bars (2).

Description

La présente invention a pour objet une grille permettant l'obturation des regards de chaussée par exemple.The present invention relates to a grid allowing the shutter of manholes for example.

Pour obturer un regard, il est connu depuis longtemps d'utiliser une grille montée de façon amovible dans un cadre solidaire de la chaussée.To shut off a look, it has long been known to use a grid removably mounted in a frame integral with the roadway.

Il est également connu de monter la grille de façon élastique dans le cadre, par déformation de la ou des deux derniers barreaux de la grille.It is also known to mount the grid resiliently in the frame, by deformation of the last two or more bars of the grid.

Dans ce cas, selon les systèmes antérieurement proposés, la fixation de la grille dans le cadre par le dernier barreau élastique demeurait fragile et pouvait même se rompre sous l'effet de l'insertion de la grille dans le cadre ou bien sous l'effet de son extraction. Cet inconvénient tenait à la structure même des barreaux élastiques.In this case, according to the systems previously proposed, the fixing of the grid in the frame by the last elastic bar remained fragile and could even break under the effect of the insertion of the grid into the frame or else under the effect of its extraction. This drawback was due to the very structure of the elastic bars.

Par ailleurs, avec les grilles connues, l'eau de pluie a tendance à glisser sur la surface des barreaux formant la partie supérieure de la grille, de sorte que toute l'eau qui passe sur la grille n'est pas absorbée par les interstices entre les barreaux.Furthermore, with the known grids, rainwater tends to slide on the surface of the bars forming the upper part of the grid, so that all the water which passes over the grid is not absorbed by the interstices. between bars.

Enfin, dans les grilles connues, le bord extérieur de la grille est généralement un bord plein venant en contact du cadre et constituant un obstacle supplémentaire au passage de l'eau au travers de la grille.Finally, in known grids, the outer edge of the grid is generally a solid edge coming into contact with the frame and constituting an additional obstacle to the passage of water through the grid.

L'invention a donc pour but de remédier à tous les inconvénients ci-dessus en proposant une grille à montage élastique dans un cadre, présentant toutes les qualités requises de solidité et de fiabilité, et susceptible de laisser passer ou absorber une quantité maximum d'eau passant sur cette grille.The invention therefore aims to remedy all the above drawbacks by proposing a grid with elastic mounting in a frame, having all the requisite qualities of solidity and reliability, and capable of letting through or absorbing a maximum amount of water passing over this grid.

A cet effet, l'invention a pour objet une grille destinée à être montée dans un cadre pour obturer un regard de chaussée et comprenant des barreaux entrecroisés, au moins l'un des barreaux d'extrémité de la grille étant élastiquement déformable par rapport aux autres barreaux pour que la grille soit fixée élastiquement dans le cadre, caractérisée en ce que ledit barreau d'extrémité n'est solidaire de la grille que par ses deux extrémités entre lesquelles est prévu au moins un ergot crochetable dans une encoche ou analogue ménagée dans le cadre.To this end, the subject of the invention is a grid intended to be mounted in a frame for closing a manhole cover and comprising intersecting bars, at least one of the end bars of the grid being elastically deformable relative to the other bars so that the grid is fixed elastically in the frame, characterized in that said end bar is secured to the grid only by its two ends between which is provided at least one hookable lug in a notch or the like formed in the framework.

Suivant une autre caractéristique de cette grille, le barreau d'extrémité précité est muni d'au moins un élément de butée vis-à-vis du cadre et du barreau adjacent.According to another characteristic of this grid, the aforementioned end bar is provided with at least one abutment element with respect to the frame and the adjacent bar.

Selon un mode de réalisation préféré, l'ergot précité est situé entre deux éléments de butée faisant saillie de part et d'autre du barreau d'extrémité et susceptibles de coopérer chacun avec une butée correspondante prévue sur le barreau adjacent.According to a preferred embodiment, the aforementioned lug is located between two abutment elements projecting on either side of the end bar and capable of cooperating each with a corresponding stop provided on the adjacent bar.

La grille de cette invention est encore caractérisée par une nappe de barreaux parallèles comprenant les deux barreaux d'extrémité précités et comportant, entre les barreaux transversaux, des plots ou analogues faisant saillie vers l'extérieur de la grille.The grid of this invention is further characterized by a sheet of parallel bars comprising the two aforementioned end bars and comprising, between the transverse bars, studs or the like projecting towards the outside of the grid.

Ces plots permettront avantageusement une excellente absorption de l'eau par la grille.These pads will advantageously allow excellent absorption of water by the grid.

Suivant encore une autre caractéristique de l'invention, les barreaux transversaux précités forment une surépaisseur sur la nappe de barreaux parallèles, et les éléments de butée des deux barreaux d'extrémité constituent un prolongement de cette surépaisseur.According to yet another characteristic of the invention, the aforementioned transverse bars form an additional thickness on the ply of parallel bars, and the abutment elements of the two end bars constitute an extension of this additional thickness.

On précisera encore ici que les extrémités opposées des barreaux de la nappe de barreaux parallèles et des barreaux d'extrémité précités constituent des extrémités libres venant directement buter sur le cadre.It will also be specified here that the opposite ends of the bars of the sheet of parallel bars and of the abovementioned end bars constitute free ends which come directly to abut on the frame.

Suivant une autre caractéristique de l'invention, l'ergot solidaire des barreaux d'extrémité précités coopère avec une rampe associée à l'encoche ménagée dans le cadre, lors de la mise en place de la grille dans ce cadre.According to another characteristic of the invention, the lug integral with the aforementioned end bars cooperates with a ramp associated with the notch formed in the frame, when the grid is placed in this frame.

Il se produira ainsi un agrafage de la grille sur le cadre, et cela sans risque aucun de détériorer la grille lors de sa mise en place dans le cadre, aussi bien que lors de son extraction du cadre.There will thus be a stapling of the grid on the frame, and this without any risk of damaging the grid when it is placed in the frame, as well as when it is extracted from the frame.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple, et dans lesquels.However, other advantages and characteristics of the invention will appear better in the detailed description which follows and which refers to the appended drawings, given solely by way of example, and in which.

La figure 1 est une vue en plan et de dessus d'une grille selon l'invention illustrée en position montée dans un cadre.Figure 1 is a plan and top view of a grid according to the invention illustrated in the mounted position in a frame.

La figure 2 est une vue en coupe suivant la ligne II-II de la figure 1.Figure 2 is a sectional view along line II-II of Figure 1.

La figure 3 est une autre vue en coupe de la grille, suivant la ligne III-III de la figure 1.Figure 3 is another sectional view of the grid, taken along line III-III of Figure 1.

La figure 4 est une vue en coupe du système d'accrochage de la grille sur le cadre, suivant la ligne IV-IV de la figure 1.FIG. 4 is a sectional view of the system for attaching the grid to the frame, along the line IV-IV of FIG. 1.

En se reportant plus particulièrement à la figure 1, on voit qu'une grille selon cette invention comprend essentiellement une nappe de barreaux parallèles 1 venant de fonderie avec des barreaux transversaux parallèles 2, la grille étant montée dans un cadre 3 solidaire d'une chaussée (non représentée).Referring more particularly to FIG. 1, it can be seen that a grid according to this invention essentially comprises a sheet of parallel bars 1 coming from the foundry with parallel transverse bars 2, the grid being mounted in a frame 3 integral with a roadway (not shown).

La nappe de barreaux parallèles 1 comporte à ses deux extrémités un barreau 4 élastiquement déformable par rapport aux autres barreaux 1 et permettant la fixation amovible de la grille sur le cadre 3.The ply of parallel bars 1 has at its two ends a bar 4 which is elastically deformable relative to the other bars 1 and which allows the grid to be fixed to the frame 3.

Conformément à l'invention, ces deux barreaux d'extrémité 4 sont solidaires de la partie restante de la grille par leurs deux extrémités 5 uniquement.According to the invention, these two end bars 4 are integral with the remaining part of the grid by their two ends 5 only.

Entre ces deux extrémités 5, est prévu un ergot 6, mieux visible sur la figure 4, et susceptible de coopérer avec une encoche ou analogue 7 ménagée dans le cadre 3. Comme il apparaît clairement sur la figure 4, le cadre 3 comporte une partie en forme de rampe 8 aboutissant à l'encoche 7 et avec laquelle peut coopérer l'ergot 6, de chaque côté de la grille, pour permettre la mise en place de la grille dans le cadre 3, comme on l'expliquera en détail plus loin.Between these two ends 5, a lug 6 is provided, better visible in FIG. 4, and capable of cooperating with a notch or the like 7 made in the frame 3. As it is clearly seen in FIG. 4, the frame 3 comprises a part in the form of a ramp 8 leading to the notch 7 and with which the lug 6 can cooperate, on each side of the grid, to allow the grid to be placed in the frame 3, as will be explained in more detail far.

L'ergot 6 sur chaque barreau d'extrémité élastique 4 est situé entre deux éléments 9 de butée vis-à-vis du cadre 3 et du barreau adjacent 1. Plus précisément, comme on le voit bien sur la figure 1, les éléments de butée 9 font saillie de part et d'autre du barreau d'extrémité 4 de façon à coopérer, d'une part, directement avec le bord 3a du cadre 3, et d'autre part, avec une butée correspondante 10 prévue sur le barreau 1 adjacent aux barreaux élastiques d'extrémité 4.The lug 6 on each elastic end bar 4 is located between two abutment elements 9 with respect to the frame 3 and the adjacent bar 1. More precisely, as can be seen in FIG. 1, the elements of stop 9 protrude on either side of the end bar 4 so as to cooperate, on the one hand, directly with the edge 3a of the frame 3, and on the other hand, with a corresponding stop 10 provided on the bar 1 adjacent to the end elastic bars 4.

On comprend donc déjà que les barreaux d'extrémité 4 peuvent se débattre élastiquement entre les extrémités 5 qui relient ces barreaux 4 à la grille, étant entendu que la course du débattement élastique est limitée par les éléments de butée 9 coopérant d'un côté avec le cadre 3 et de l'autre côté avec la butée 10 du barreau adjacent 1.It is therefore already understood that the end bars 4 can be resisted elastically between the ends 5 which connect these bars 4 to the grid, it being understood that the stroke of the elastic movement is limited by the stop elements 9 cooperating on one side with the frame 3 and on the other side with the stop 10 of the adjacent bar 1.

On pourrait parfaitement, sans sortir du cadre de l'invention utiliser pour les barreaux d'extrémité 4 une seule butée telle que 9, et non pas deux butées comme représenté, la ou lesdites butées pouvant même être omises.It would be perfectly possible, without departing from the scope of the invention, to use for the end bars 4 a single stop such as 9, and not two stops as shown, the said stop (s) possibly even being omitted.

Les barreaux parallèles 1 comportent, entre les barreaux transversaux 2 des petits plots ou analogues 11 faisant saillie vers l'extérieur de la grille.The parallel bars 1 comprise, between the transverse bars 2 small studs or the like 11 projecting towards the outside of the grid.

Si de l'eau passe sur la grille suivant le sens des flèches repérées X sur la figure 1, les plots 11 permettront avantageusement la séparation des filets d'eau en plusieurs filets, comme matérialisé par les flèches 12, de sorte que la grille offrira ainsi moins de résistance à la retenue de l'eau et absorbera donc une quantité maximum d'eau au travers des interstices entre les barreaux.If water passes over the grid in the direction of the arrows marked X in FIG. 1, the studs 11 will advantageously allow the separation of the water nets into several nets, as shown by the arrows 12, so that the grid will offer thus less resistance to water retention and will therefore absorb a maximum amount of water through the interstices between the bars.

Les barreaux 2 transversaux aux barreaux 1 forment une surépaisseur 13 sur la nappe de barreaux parallèles 1, comme on le voit bien sur la figure 2. Et les éléments de butée 9 faisant saillie de part et d'autre de chaque barreau d'extrémité 4 constituent, en quelque sorte, un prolongement de la surépaisseur 13.The bars 2 transverse to the bars 1 form an extra thickness 13 on the ply of parallel bars 1, as can be seen in FIG. 2. And the abutment elements 9 projecting on either side of each end bar 4 constitute, in a way, an extension of the extra thickness 13.

Ainsi, la surépaisseur 13 que présentent les barreaux transversaux 2, constituera une barrière à l'eau s'écoulant sur la grille suivant la flèche repérée Y sur la figure 1, de sorte que l'eau sera amenée à passer au travers de la grille entre les interstices formés entre les barreaux 1 et 2. De plus, à supposer que les filets d'eau passent au-dessus de la surépaisseur 13 des barreaux 2, ils seront alors également cassés ou séparés par les plots 11 des barreaux 1.Thus, the extra thickness 13 presented by the transverse bars 2, will constitute a barrier to the water flowing on the grid according to the arrow marked Y in FIG. 1, so that the water will be caused to pass through the grid between the interstices formed between the bars 1 and 2. In addition, assuming that the water streams pass above the excess thickness 13 of the bars 2, they will then also be broken or separated by the studs 11 of the bars 1.

Comme il apparaît clairement sur la figure 1, les extrémités opposées 1a des barreaux parallèles 1, ainsi que les extrémités opposées 4a des derniers barreaux 4 qui sont élastiquement déformables, constituent des extrémités libres venant directement buter sur le bord interne 3a du cadre 3. Ainsi, l'eau, sitôt franchi le cadre 3, tombe nécessairement dans les trous formés entre le cadre 3, deux extrémités libres adjacentes 1a des barreaux 1 et un barreau 2. Autrement dit, grâce aux extrémités libres 1a, 4a, on limite avantageusement l'étendue de la face supérieure de la grille, et donc on diminue d'autant ses capacités à permettre la rétention et le glissement de l'eau. En bref, la grille ne comporte pas de bord extérieur plein susceptible de retenir l'eau s'écoulant suivant les flèches X et/ou Y.As it clearly appears in FIG. 1, the opposite ends 1a of the parallel bars 1, as well as the opposite ends 4a of the last bars 4 which are elastically deformable, constitute free ends coming directly to abut on the internal edge 3a of the frame 3. Thus , the water, as soon as it passes the frame 3, necessarily falls into the holes formed between the frame 3, two adjacent free ends 1a of the bars 1 and a bar 2. In other words, thanks to the free ends 1a, 4a, advantageously limits the 'extent of the upper face of the grid, and therefore its capacity is reduced to allow the retention and sliding of water. In short, the grid does not have a solid outer edge capable of retaining the water flowing along the arrows X and / or Y.

Mais, pour une meilleure compréhension de l'invention, on expliquera brièvement comment s'effectue le montage de la grille et son extraction du cadre 3.However, for a better understanding of the invention, we will briefly explain how the grid is assembled and extracted from the frame 3.

Le cadre 3 étant mis en place et fixé sur une chaussée par exemple, il suffit de positionner la grille qui vient d'être décrite au droit du cadre.The frame 3 being set up and fixed on a floor for example, it suffices to position the grid which has just been described to the right of the frame.

Les ergots 6 aux deux extrémités de la grille, vont venir en contact avec la rampe 8 du cadre 3 et, sous l'effet de la gravité, lesdits ergots glissant sur la rampe 8, vont provoquer une déformation des barreaux d'extrémité 4 vers le barreau adjacent 1, et cela jusqu'à ce que les ergots 6 franchissent la rampe 8 pour venir élastiquement s'introduire dans l'encoche 7.The pins 6 at the two ends of the grid, will come into contact with the ramp 8 of the frame 3 and, under the effect of gravity, said pins sliding on the ramp 8, will cause a deformation of the end bars 4 towards the adjacent bar 1, and this until the pins 6 cross the ramp 8 to come elastically into the notch 7.

La déformation élastique des barreaux 4 sera limitée par les éléments de butée 9 coopérant avec les butées correspondantes 10 du barreau adjacent. Ainsi, la déformation élastique des barreaux 4 sera avantageusement contrôlée, ce qui évitera toute détérioration de la grille.The elastic deformation of the bars 4 will be limited by the stop elements 9 cooperating with the corresponding stops 10 of the adjacent bar. Thus, the elastic deformation of the bars 4 will advantageously be controlled, which will prevent any deterioration of the grid.

Pour extraire cette dernière de son cadre 3, il suffira d'introduire un outil entre ledit cadre et l'un des barreaux d'extrémité 4 qui pourra ainsi se déformer en direction d'un barreau adjacent 1 de façon à faire sortir l'ergot 6 de son encoche 7.To extract the latter from its frame 3, it will suffice to introduce a tool between said frame and one of the end bars 4 which can thus be deformed in the direction of an adjacent bar 1 so as to bring out the lug 6 of its notch 7.

Là encore, la déformation élastique d'un barreau 4 provoquée par l'outil (non représenté) sera limitée grâce à la coopération des éléments de butée 9 avec les butées 10, de sorte que la grille ne risquera pas d'être endommagée par l'opération d'extraction.Here again, the elastic deformation of a bar 4 caused by the tool (not shown) will be limited thanks to the cooperation of the stop elements 9 with the stops 10, so that the grid will not risk being damaged by the 'extraction operation.

Il faut aussi noter que l'endommagement des barreaux d'extrémité 4 sera d'autant plus évité que la déformation de ces barreaux, dans une direction ou dans une autre, s'effectuera en quelque sorte symétriquement au niveau des points 5 d'attache de ces barreaux à la grille.It should also be noted that the damage to the end bars 4 will be all the more avoided as the deformation of these bars, in one direction or another, will take place in a way symmetrically at the points of attachment 5 from these bars to the grid.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.

C'est ainsi que la grille de l'invention peut comporter un nombre quelconque de barreaux, de plots tels que 11 et de butées coopérantes permettant de limiter la course de déformation des derniers barreaux de la grille étant entendu que les butées peuvent être omises.Thus, the grid of the invention can include any number of bars, studs such as 11 and cooperating stops making it possible to limit the deformation stroke of the last bars of the grid, it being understood that the stops can be omitted.

C'est dire que l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit.This means that the invention includes all the technical equivalents of the means described as well as their combinations if these are carried out according to the spirit.

Claims (7)

Grille destinée à être montée dans un cadre (3) pour obturer un regard de chaussée et comprenant des barreaux entrecroisés, au moins l'un des barreaux d'extrémité (4) de la grille étant élastiquement déformable par rapport aux autres barreaux (1, 2) pour que la grille soit fixée élastiquement dans le cadre, caractérisée en ce que ledit barreau d'extrémité (4) n'est solidaire de la grille que par ses deux extrémités (5) entre lesquelles est prévu au moins un ergot crochetable dans une encoche ou analogue (7) ménagée dans le cadre (3).Grid intended to be mounted in a frame (3) for closing off a manhole cover and comprising crisscrossed bars, at least one of the end bars (4) of the grid being elastically deformable relative to the other bars (1, 2) so that the grid is fixed elastically in the frame, characterized in that said end bar (4) is integral with the grid only by its two ends (5) between which is provided at least one hookable lug in a notch or the like (7) formed in the frame (3). Grille selon la revendication 1, caractérisée en ce que le barreau d'extrémité précité (4) est muni d'au moins un élément (9) de butée vis-à-vis du cadre (3) et du barreau adjacent (1).Grid according to claim 1, characterized in that the aforementioned end bar (4) is provided with at least one element (9) abutting the frame (3) and the adjacent bar (1). Grille selon la revendication 1 ou 2, caractérisée en ce que l'ergot précité (6) est situé entre deux éléments de butée (9) faisant saillie de part et d'autre du barreau d'extrémité (4) et susceptibles de coopérer chacun avec une butée correspondante (10) prévue sur le barreau adjacent (1).Grid according to claim 1 or 2, characterized in that the aforesaid lug (6) is located between two abutment elements (9) projecting on either side of the end bar (4) and capable of cooperating each with a corresponding stop (10) provided on the adjacent bar (1). Grille selon l'une des revendications 1 à 3, caractérisée par une nappe de barreaux parallèles (1) comprenant deux barreaux d'extrémité précités (4) et comportant, entre les barreaux transversaux (2), des plots ou analogues (11) faisant saillie vers l'extérieur de la grille.Grid according to one of claims 1 to 3, characterized by a ply of parallel bars (1) comprising two aforementioned end bars (4) and comprising, between the transverse bars (2), studs or the like (11) forming protruding towards the outside of the grid. Grille selon l'une des revendications précédentes, caractérisée en ce que les barreaux transversaux précités (2) forment une surépaisseur (13) sur la nappe de barreaux parallèles (1) et les éléments de butée (9) des deux barreaux d'extrémité (4) constituent un prolongement de cette surépaisseur.Grid according to one of the preceding claims, characterized in that the aforementioned transverse bars (2) form an additional thickness (13) on the sheet of parallel bars (1) and the stop elements (9) of the two end bars (4) constitute an extension of this additional thickness. Grille selon l'une des revendications précédentes, caractérisée en ce que les extrémités opposées des barreaux (1) de la nappe de barreaux parallèles et des barreaux d'extrémité précités (4) constituent des extrémités libres (1a, 4a) venant directement buter sur le cadre (3).Grid according to one of the preceding claims, characterized in that the opposite ends of the bars (1) of the sheet of parallel bars and of the aforementioned end bars (4) constitute free ends (1a, 4a) directly abutting on the frame (3). Grille selon la revendication 1, caractérisée en ce que l'ergot (6) solidaire des barreaux d'extrémité précités (4) coopère avec une rampe (8) associée à l'encoche (7) ménagée dans le cadre (3), lors de la mise en place de la grille dans ce cadre.Grid according to claim 1, characterized in that the lug (6) integral with the aforementioned end bars (4) cooperates with a ramp (8) associated with the notch (7) formed in the frame (3), during of the installation of the grid in this context.
EP95400335A 1994-02-18 1995-02-16 Manhole cover grating Expired - Lifetime EP0668409B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9401886 1994-02-18
FR9401886A FR2716472B1 (en) 1994-02-18 1994-02-18 Grid for closing off manhole covers.

Publications (2)

Publication Number Publication Date
EP0668409A1 true EP0668409A1 (en) 1995-08-23
EP0668409B1 EP0668409B1 (en) 1998-12-09

Family

ID=9460236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400335A Expired - Lifetime EP0668409B1 (en) 1994-02-18 1995-02-16 Manhole cover grating

Country Status (8)

Country Link
EP (1) EP0668409B1 (en)
AT (1) ATE174397T1 (en)
BR (1) BR9500688A (en)
DE (1) DE69506454T2 (en)
DK (1) DK0668409T3 (en)
ES (1) ES2128002T3 (en)
FR (1) FR2716472B1 (en)
GR (1) GR3029643T3 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740789A1 (en) * 1995-11-03 1997-05-09 Prefaest Sa Reinforced concrete gutter and grille
EP0811732A1 (en) * 1996-06-07 1997-12-10 Prefaest S.A. Gutter grating for a quick assembling and disassembling
US7303669B2 (en) * 2002-08-02 2007-12-04 Norinco Grate for closing a drain and similar
US9127447B2 (en) 2013-01-24 2015-09-08 Canada Pipe Company ULC Frame for an inlet of a catch basin or manhole
US9157213B2 (en) 2013-03-05 2015-10-13 Canada Pipe Company ULC Eccentric frame for an inlet of a catch basin or manhole
US9290968B2 (en) 2012-12-18 2016-03-22 Canada Pipe Company ULC Locking mechanism for a cover

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793502B1 (en) 1999-05-11 2001-08-17 Norinco MANHOLE WITH LID AND GRID ARTICULATED AND LOCKED
DE102010031206B4 (en) 2010-07-09 2014-02-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Tunable Fabry-Pérot filter and method of making the same
USD722678S1 (en) 2012-12-12 2015-02-17 Canada Pipe Company ULC Grate
FR3091883B1 (en) 2019-01-23 2022-07-29 Ej Emea Securing device for locking a manhole shutter system
DE102022106289A1 (en) * 2022-03-17 2023-09-21 Aco Ahlmann Se & Co. Kg Cover grate of a surface drainage device and surface drainage device with such a cover grate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1548140A (en) * 1966-12-23 1968-11-29
CH629553A5 (en) * 1979-02-16 1982-04-30 Covers Self Level Ag Grating intended to be fitted on a frame
EP0085306A2 (en) * 1982-01-29 1983-08-10 Brickhouse Dudley Manufacturing Limited Improvements in or relating to cover and frame assemblies
GB2188664A (en) * 1986-04-03 1987-10-07 Brickhouse Dudley Mfg Grating and frame assembly
EP0401146A1 (en) * 1989-06-01 1990-12-05 Pont-A-Mousson S.A. Fastening means for joining two parts of a traffic area

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1548140A (en) * 1966-12-23 1968-11-29
CH629553A5 (en) * 1979-02-16 1982-04-30 Covers Self Level Ag Grating intended to be fitted on a frame
EP0085306A2 (en) * 1982-01-29 1983-08-10 Brickhouse Dudley Manufacturing Limited Improvements in or relating to cover and frame assemblies
GB2188664A (en) * 1986-04-03 1987-10-07 Brickhouse Dudley Mfg Grating and frame assembly
EP0401146A1 (en) * 1989-06-01 1990-12-05 Pont-A-Mousson S.A. Fastening means for joining two parts of a traffic area

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740789A1 (en) * 1995-11-03 1997-05-09 Prefaest Sa Reinforced concrete gutter and grille
EP0811732A1 (en) * 1996-06-07 1997-12-10 Prefaest S.A. Gutter grating for a quick assembling and disassembling
FR2749601A1 (en) * 1996-06-07 1997-12-12 Prefaest Sa CHANNEL GRID WITH QUICK ASSEMBLY AND DISASSEMBLY
US7303669B2 (en) * 2002-08-02 2007-12-04 Norinco Grate for closing a drain and similar
US9290968B2 (en) 2012-12-18 2016-03-22 Canada Pipe Company ULC Locking mechanism for a cover
US9127447B2 (en) 2013-01-24 2015-09-08 Canada Pipe Company ULC Frame for an inlet of a catch basin or manhole
US9157213B2 (en) 2013-03-05 2015-10-13 Canada Pipe Company ULC Eccentric frame for an inlet of a catch basin or manhole

Also Published As

Publication number Publication date
DK0668409T3 (en) 1999-08-16
FR2716472A1 (en) 1995-08-25
BR9500688A (en) 1995-10-24
DE69506454D1 (en) 1999-01-21
ES2128002T3 (en) 1999-05-01
GR3029643T3 (en) 1999-06-30
ATE174397T1 (en) 1998-12-15
FR2716472B1 (en) 1996-05-03
DE69506454T2 (en) 1999-07-08
EP0668409B1 (en) 1998-12-09

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