EP2536883B1 - Cover for a manhole and a sealing - Google Patents

Cover for a manhole and a sealing Download PDF

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Publication number
EP2536883B1
EP2536883B1 EP11708925.0A EP11708925A EP2536883B1 EP 2536883 B1 EP2536883 B1 EP 2536883B1 EP 11708925 A EP11708925 A EP 11708925A EP 2536883 B1 EP2536883 B1 EP 2536883B1
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EP
European Patent Office
Prior art keywords
skirt
gasket
tenon
lid
seal
Prior art date
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Application number
EP11708925.0A
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German (de)
French (fr)
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EP2536883A2 (en
Inventor
Bruno Tourte
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.)
EJ Emea SAS
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EJ Emea SAS
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Publication date
Application filed by EJ Emea SAS filed Critical EJ Emea SAS
Priority to PL11708925T priority Critical patent/PL2536883T3/en
Publication of EP2536883A2 publication Critical patent/EP2536883A2/en
Application granted granted Critical
Publication of EP2536883B1 publication Critical patent/EP2536883B1/en
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Anticipated expiration legal-status Critical

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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
    • 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
    • E02D29/149—Annular gaskets

Definitions

  • the present invention relates to a manhole comprising a frame defining an opening and a cover for closing the opening of the frame.
  • This manhole also comprises a damping gasket having an inverted T-shaped cross section, the rod of which is engaged by force in a groove opening from the underside of the lid and whose bearing bears against the seat flange of the seat. frame in tilted position closing the lid on the frame.
  • the manhole of the type comprising a frame delimiting an opening and provided an internal peripheral rib seat, a cover for closing the opening of the frame and provided with a skirt located under the cover, and a seal secured to the lid resting on the seat rib when the lid is in the closed position of the opening of the frame, is characterized in that the seal has a substantially U-shaped cross section capping the skirt and having means ensuring the positive attachment by clipping the seal on the skirt of the lid.
  • the means for attaching the seal to the skirt comprise an internal lug protruding from the core of the joint perpendicularly to the latter between the two branches of the latter and the flexible lips located on each side of the lug adapted to engage elastically in a groove formed in the edge of the skirt to retain the tenon in the groove.
  • the attachment means of the seal to the skirt also comprise substantially parallel ridges integral with the two inner faces of the branches of the seal and adapted to come into tight contact respectively on the two lateral faces of the skirt.
  • the groove has in cross section substantially the shape of an isosceles trapezium opening outwardly of the edge of the skirt by its large base.
  • At least two pairs of parallel lips protrude on both sides of the tenon from the free end of the tenon and are inclined at the same angle relative to the tenon towards the core of the U of the joint so as to present in cross section of the tenon an isosceles trapezoidal outer profile of form conjugate to the groove.
  • the two branches of the U of the joint converge towards one another to grip the skirt of the lid.
  • the seal may comprise at least one flexible outer peripheral lip bearing sealing on the inner face of the peripheral wall of the frame.
  • the gasket is made in one piece from a synthetic rubber material, such as an ethylene-propylene diene terpolymer.
  • the frame and the cover are circular, the peripheral circumferential rib is a radially internal collar, the skirt is cylindrical, the groove of the skirt is an annular groove and the seal and its inner tenon are annular.
  • the frame and the cover are rectangular or square
  • the skirt is constituted by four ribs in the general shape of rectangle or square each comprising a groove and the seal and consisting of four independent bands fixed by clipping respectively on the four ribs of the skirt.
  • the skirt of the cover and the groove are raw foundry.
  • the invention also relates to a cover for manhole, comprising a skirt located under the cover, and which is characterized in that the skirt comprises at least one groove formed in the edge of the skirt.
  • the skirt comprises four ribs shaped rectangle or square and each rib comprises a groove having in cross section substantially the shape of an isosceles trapezium opening outwardly of the edge of the rib skirt by its large base.
  • the skirt is substantially cylindrical and the groove is an annular groove having in cross section substantially the shape an isosceles trapezium opening outside the song of the cylindrical skirt by its large base.
  • the skirt and its groove or annular groove are rough foundry.
  • the reference 1 designates a manhole which comprises a circular frame 2 and a cover or circular buffer 3 mounted hinged to the frame 2 by means of a radial pin 4 pivotally housed in an ear 5 protruding radially from the frame 2.
  • the frame 2 delimits by its generally annular peripheral wall 6 an opening 7 and has a radially inner flange 8 secured to the inner face of the wall 6 perpendicular to the latter.
  • the collar 8 serves as seat for the cover 3 when the latter occupies its closed position of the opening 7 of the frame 2.
  • the lid 3 comprises a substantially planar sealing mat 9 perpendicular to the central axis of symmetry X-X 'of the lid.
  • the central axis X-X 'of the cover 3 is substantially coincidental with the central axis of symmetry of the frame 2.
  • the cover 3 furthermore comprises a cylindrical skirt 10 located under the sealing veil 9 coaxial with the axis X-X 'perpendicular to the veil 9.
  • the cylindrical skirt 10 extends substantially in the vicinity of the outer peripheral edge 3a of the lid 3.
  • the manhole 1 further comprises a gasket 11 integral with the lid 3, made of a plastics material, such as synthetic rubber, and which bears on the inner collar 8 when the lid 3 is in the closed position of the opening 7 of the frame 2.
  • the seal 11 has the dual function of soundproofing, that is to say to prevent the clacking noise of the cover 3 on the frame 2 when tilting the cover 3 to its closed position or passage of vehicles on the lid resting on the frame 2, and sealing against runoff, fines and / or odors that can be introduced into the space between the frame 2 and the cover 3.
  • the manhole 2 also comprises a latch 12 diametrically opposed to the hinge of the lid 3 to the frame 2 and for locking the lid 3 to the frame 2 in its closed position.
  • the seal 11 has in cross section substantially the shape of a U capping the cylindrical skirt 10 and comprising means ensuring the positive attachment by clipping or notching of the seal 11 on the skirt 10 of the cover 3 so that the 11a connecting core of the two branches 11b of the seal 11 constitutes a sealing surface bearing on the inner flange 8 of the frame 2 in the closed position of the lid 3 to which the skirt 10 is located thus above the collar 8 perpendicular to the latter.
  • the attachment means of the seal 11 to the skirt 10 comprise first of all an internal tenon 13 integral with the core 11a of the gasket 11 projecting from the core 11a perpendicular to it between the two branches 11b of the gasket 11 and flexible lips 14 integral with the pin 13 protruding from each side of this tenon and resiliently engaging in an annular groove 15 formed in the edge of the skirt 10 to effectively retain the pin 13 in the groove 15.
  • the groove 15 has in cross section substantially the shape of an isosceles trapezium opening outwardly of the edge of the skirt 10 by its large base.
  • the annular post 13 is provided with three pairs of flexible lips 14 located one above the other, the lips 14 of the first two pairs starting from the free end of the tenon being inclined at the same angle relative to the tenon 13 towards the core 11a of the joint 11 so as to be parallel to each other in the disengaged position of the seal 11 of the skirt 10, while the two flexible lips 14 of the third pair located in the vicinity of the base of the post 13 extend perpendicularly on both sides of it.
  • the flexible lips 14 of these pairs protrude on both sides of the post 13 by a distance such as in cross section of the post, they have an isosceles trapezoidal external profile of shape conjugate to that of the groove 15 of the skirt 10.
  • the tenon 13 may have in cross section a substantially isosceles trapezoidal shape whose large base constitutes the connecting leg of the post 13 to the core 11a of the seal 11.
  • the fastening means of the gasket 11 to the skirt 10 further comprise substantially parallel ridges 15 secured to the two inner faces of the arms 11b of the gasket 11 and pressing respectively against the two lateral faces of the cylindrical skirt 10 once the seal 11 mounted on the skirt 10.
  • the ridges 16 may be slightly inclined towards the core 11a of the seal 11 in order to better grip the corresponding lateral faces of the skirt 10 and the two branches 11b of the seal 11 may converge slightly towards each other in the disengaged position. of the skirt 10 to elastically grip the lateral faces of the skirt 10 when the seal 11 shoes this skirt.
  • the ridges 16 may extend over almost the entire height of each branch 11b of the seal 11.
  • the fastening means of the seal 11 to the skirt 10 are of a design such that they allow the attachment of the gasket 11 to the skirt 10 without requiring machining of the skirt 10 and its groove 15 which remain rough cast.
  • the synthetic rubber material of the gasket 11 may be an ethylene-propylene-diene terpolymer (EPDM), a material resistant to both ultraviolet rays, mechanical stresses and time.
  • EPDM ethylene-propylene-diene terpolymer
  • the seal 11 may also be provided with a flexible outer peripheral lip 17 projecting from the outer face of the outer leg 11b of the seal 11 and resiliently bearing against the inner annular face of the wall 6 of the frame 2 in the closed position cover 3 on the frame 2 to increase the seal of this seal between cover 3 and frame 2.
  • Two or more peripheral lips 17 may be provided to the branch 11b of the gasket 11 parallel to one another above.
  • the number of lips 14 and ridges 16, their inclinations and their shapes are determined in order to obtain a good compromise between the establishment and fixing by clipping of the elastic seal 11 on the cylindrical skirt 10.
  • the groove 15 of the skirt 10 may have an inverted U-shaped cross-section, in which case the flexible lips 14 would protrude on either side of the post, of rectangular cross section, according to the same length to provide the lips, when considered in cross section, a shape profile complementary to that of the groove 15, the lips 14 retaining their function to oppose the removal of the seal 11 of the skirt 10 when engaged elastically in the throat 15.
  • the invention thus proposes a seal and soundproofing for a manhole cover of a structure allowing its easy attachment to a skirt of this cover without requiring special machining of the skirt and its throat which remain raw. of foundry, and which is firmly secured to the skirt, without risk of detaching it during the tilting operation of the cover to its open position despite the presence of waste between the seat flange 2 of the frame 2 and the sealing range of this seal which tend to stick it to the collar.
  • the invention has been described with reference to a circular frame and cover, but it is understood that it can be applied to frames and covers for rectangular, square or other manholes.
  • the skirt under the cover could be constituted by four ribs having the general shape of a rectangle or a square and the seal could be constituted in the form of four independent strips fixed by clipping respectively on the four ribs of the skirt coming from foundry, each rib being provided with a groove also raw foundry, formed in the edge of the rib to retain the tenon of the corresponding band of the seal.
  • each band of the seal will have in cross section a shape identical to the cross section of the annular seal described above.
  • each band of the joint will have a structure identical to that of the annular seal and will be of the same material as the latter.
  • the groove of each rib of the skirt will have in cross section substantially the shape of an isosceles trapezium opening outwardly from the edge of the rib by its large base.
  • the invention can be applied to a lid that is not articulated to its support frame and that can simply be recessed into the frame.

Description

La présente invention concerne un regard de chaussée comprenant un cadre délimitant une ouverture et un couvercle permettant d'obturer l'ouverture du cadre.The present invention relates to a manhole comprising a frame defining an opening and a cover for closing the opening of the frame.

Un tel regard de chaussée est connu notamment par la demande de brevet français n° 2 660 678 et selon lequel le cadre et le couvercle sont circulaires avec le cadre pourvu d'une collerette radialement interne d'assise sur laquelle vient en appui le couvercle à sa position de fermeture de l'ouverture du cadre.Such a look is known in particular by the French patent application no. 2,660,678 and wherein the frame and the lid are circular with the frame provided with a radially inner flange of seat on which bears the lid at its closed position of the opening of the frame.

Ce regard de chaussée comprend en outre un joint d'amortissement ayant une section transversale en T renversé dont la tige est engagée de force dans une gorge débouchant de la face inférieure du couvercle et dont la portée vient en appui sur la collerette d'assise du cadre en position basculée de fermeture du couvercle sur le cadre.This manhole also comprises a damping gasket having an inverted T-shaped cross section, the rod of which is engaged by force in a groove opening from the underside of the lid and whose bearing bears against the seat flange of the seat. frame in tilted position closing the lid on the frame.

Ce regard de chaussée a pour inconvénient que le joint d'amortissement peut se désolidariser du couvercle lors du basculement du couvercle de sa position de fermeture à sa position d'ouverture du cadre. En effet, en position de fermeture du couvercle sur le cadre, la portée d'étanchéité du joint peut être collée en appui sur la collerette interne du cadre par des déchets de terre ou autres, interposés entre la face supérieure de la collerette et la portée d'étanchéité du joint. En outre, pour assurer une bonne fixation par coincement de la tige du joint en T dans la gorge du couvercle, il est nécessaire de réaliser cette gorge par usinage, augmentant ainsi les coûts de fabrication du couvercle. Un regard de chaussée similaire est aussi divulgué dans JP2001049681 . La présente invention propose un regard de chaussée remédiant aux inconvénients ci-dessus des regards de chaussée connus.This view of the floor has the disadvantage that the damping seal can become detached from the lid when the lid is tilted from its closed position to its open position of the frame. Indeed, in the closed position of the cover on the frame, the sealing surface of the seal can be glued in bearing on the inner flange of the frame by earth or other waste, interposed between the upper face of the flange and the scope seal seal. In addition, to ensure a good fixing by jamming the rod of the T-seal in the cover groove, it is necessary to achieve this groove by machining, thus increasing the manufacturing costs of the cover. A similar look is also disclosed in JP2001049681 . The present invention provides a manhole overcoming the disadvantages above known manholes.

Selon l'invention, le regard de chaussée, du type comprenant un cadre délimitant une ouverture et pourvu d'une nervure périphérique interne d'assise, un couvercle permettant d'obturer l'ouverture du cadre et pourvu d'une jupe située sous le couvercle, et un joint solidaire du couvercle venant en appui sur la nervure d'assise lorsque le couvercle est en position de fermeture de l'ouverture du cadre, est caractérisé en ce que le joint a une section transversale sensiblement en forme de U coiffant la jupe et comportant des moyens assurant la fixation positive par clippage du joint sur la jupe du couvercle.According to the invention, the manhole, of the type comprising a frame delimiting an opening and provided an internal peripheral rib seat, a cover for closing the opening of the frame and provided with a skirt located under the cover, and a seal secured to the lid resting on the seat rib when the lid is in the closed position of the opening of the frame, is characterized in that the seal has a substantially U-shaped cross section capping the skirt and having means ensuring the positive attachment by clipping the seal on the skirt of the lid.

De préférence, les moyens de fixation du joint à la jupe comprennent un tenon interne faisant saillie de l'âme du joint perpendiculairement à celle-ci entre les deux branches de ce dernier et des lèvres souples situées de chaque côté du tenon aptes à s'engager élastiquement dans une rainure formée dans le chant de la jupe pour retenir le tenon dans la rainure.Preferably, the means for attaching the seal to the skirt comprise an internal lug protruding from the core of the joint perpendicularly to the latter between the two branches of the latter and the flexible lips located on each side of the lug adapted to engage elastically in a groove formed in the edge of the skirt to retain the tenon in the groove.

De préférence, les moyens de fixation du joint à la jupe comprennent également des stries sensiblement parallèles solidaires des deux faces internes des branches du joint et aptes à venir en appui serré respectivement sur les deux faces latérales de la jupe.Preferably, the attachment means of the seal to the skirt also comprise substantially parallel ridges integral with the two inner faces of the branches of the seal and adapted to come into tight contact respectively on the two lateral faces of the skirt.

Avantageusement, la rainure présente en section transversale sensiblement la forme d'un trapèze isocèle débouchant extérieurement du chant de la jupe par sa grande base.Advantageously, the groove has in cross section substantially the shape of an isosceles trapezium opening outwardly of the edge of the skirt by its large base.

Au moins deux paires de lèvres parallèles font saillies de part et d'autre du tenon à partir de l'extrémité libre du tenon et sont inclinées d'un même angle relativement au tenon vers l'âme du U du joint de manière à présenter en section transversale du tenon un profil externe en trapèze isocèle de forme conjuguée à la rainure.At least two pairs of parallel lips protrude on both sides of the tenon from the free end of the tenon and are inclined at the same angle relative to the tenon towards the core of the U of the joint so as to present in cross section of the tenon an isosceles trapezoidal outer profile of form conjugate to the groove.

Avantageusement, les deux branches du U du joint convergent l'une vers l'autre pour enserrer la jupe du couvercle.Advantageously, the two branches of the U of the joint converge towards one another to grip the skirt of the lid.

Le cas échéant, le joint peut comporter au moins une lèvre périphérique externe souple venant en appui d'étanchéité sur la face interne de la paroi périphérique du cadre.Where appropriate, the seal may comprise at least one flexible outer peripheral lip bearing sealing on the inner face of the peripheral wall of the frame.

De préférence, le joint est réalisé en une seule pièce à partir d'une matière à base de caoutchouc synthétique, tel qu'un terpolymère d'éthylène-propylènediène.Preferably, the gasket is made in one piece from a synthetic rubber material, such as an ethylene-propylene diene terpolymer.

Avantageusement, le cadre et le couvercle sont circulaires, la nervure périphérique d'assise est une collerette radialement interne, la jupe est cylindrique, la rainure de la jupe est une gorge annulaire et le joint et son tenon interne sont annulaires.Advantageously, the frame and the cover are circular, the peripheral circumferential rib is a radially internal collar, the skirt is cylindrical, the groove of the skirt is an annular groove and the seal and its inner tenon are annular.

Selon une variante de réalisation, le cadre et le couvercle sont rectangulaires ou carrés, la jupe est constituée par quatre nervures en forme générale de rectangle ou de carré comprenant chacune une rainure et le joint et constitué de quatre bandes indépendantes fixées par clippage respectivement sur les quatre nervures de la jupe.According to an alternative embodiment, the frame and the cover are rectangular or square, the skirt is constituted by four ribs in the general shape of rectangle or square each comprising a groove and the seal and consisting of four independent bands fixed by clipping respectively on the four ribs of the skirt.

La jupe du couvercle et la rainure sont brutes de fonderie.The skirt of the cover and the groove are raw foundry.

L'invention vise également un couvercle pour regard de chaussée, comprenant une jupe située sous le couvercle, et qui est caractérisé en ce que la jupe comprend au moins une rainure formée dans le chant de la jupe.The invention also relates to a cover for manhole, comprising a skirt located under the cover, and which is characterized in that the skirt comprises at least one groove formed in the edge of the skirt.

Selon une variante de réalisation, pour un couvercle rectangulaire ou carré, la jupe comprend quatre nervures en forme de rectangle ou de carré et chaque nervure comprend une rainure présentant en section transversale sensiblement la forme d'un trapèze isocèle débouchant extérieurement du chant de la nervure de la jupe par sa grande base.According to an alternative embodiment, for a rectangular or square cover, the skirt comprises four ribs shaped rectangle or square and each rib comprises a groove having in cross section substantially the shape of an isosceles trapezium opening outwardly of the edge of the rib skirt by its large base.

Selon une autre variante de réalisation, pour un couvercle circulaire, la jupe est sensiblement cylindrique et la rainure est une gorge annulaire présentant en section transversale sensiblement la forme d'un trapèze isocèle débouchant extérieurement du chant de la jupe cylindrique par sa grande base.According to another embodiment, for a circular cover, the skirt is substantially cylindrical and the groove is an annular groove having in cross section substantially the shape an isosceles trapezium opening outside the song of the cylindrical skirt by its large base.

La jupe et sa rainure ou gorge annulaire sont brutes de fonderie.The skirt and its groove or annular groove are rough foundry.

L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement dans la description explicative qui va suivre faite en référence aux dessins annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :

  • la figure 1 est une vue de dessus d'un regard de chaussée ;
  • la figure 2 est une vue en coupe suivant la ligne II-II de la figure 1 et représentant un joint conforme à l'invention solidaire du couvercle du regard de chaussée ;
  • la figure 3 est une vue éclatée en coupe représentant le joint de l'invention désolidarisé du couvercle du regard de chaussée ;
  • la figure 4 est une vue partielle en perspective de dessus du joint de l'invention ; et
  • la figure 5 est une vue partielle en perspective de dessous du joint suivant la flèche V de la figure 4.
The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which will follow with reference to the accompanying drawings given solely by way of example illustrating an embodiment. of the invention and in which:
  • the figure 1 is a top view of a manhole;
  • the figure 2 is a sectional view along line II-II of the figure 1 and showing a seal according to the invention secured to the cover of the manhole;
  • the figure 3 is an exploded sectional view showing the joint of the invention disengaged from the cover of the manhole;
  • the figure 4 is a partial perspective view from above of the seal of the invention; and
  • the figure 5 is a partial perspective view from below of the joint along arrow V of the figure 4 .

En se reportant aux figures, la référence 1 désigne un regard de chaussée qui comprend un cadre circulaire 2 et un couvercle ou tampon circulaire 3 monté articulé au cadre 2 par l'intermédiaire d'un tenon radial 4 logé de manière pivotante dans une oreille 5 faisant saillie radialement du cadre 2.Referring to the figures, the reference 1 designates a manhole which comprises a circular frame 2 and a cover or circular buffer 3 mounted hinged to the frame 2 by means of a radial pin 4 pivotally housed in an ear 5 protruding radially from the frame 2.

Le cadre 2 délimite par sa paroi périphérique généralement annulaire 6 une ouverture 7 et comporte une collerette radialement interne 8 solidaire de la face interne de la paroi 6 perpendiculairement à cette dernière. La collerette 8 sert d'assise au couvercle 3 lorsque ce dernier occupe sa position de fermeture de l'ouverture 7 du cadre 2.The frame 2 delimits by its generally annular peripheral wall 6 an opening 7 and has a radially inner flange 8 secured to the inner face of the wall 6 perpendicular to the latter. The collar 8 serves as seat for the cover 3 when the latter occupies its closed position of the opening 7 of the frame 2.

Le couvercle 3 comporte un voile d'obturation 9 sensiblement plan perpendiculaire à l'axe central de symétrie X-X' du couvercle. Lorsque le couvercle 3 occupe sa position de fermeture sur le cadre 2, l'axe central X-X' du couvercle 3 est pratiquement confondu avec l'axe central de symétrie du cadre 2.The lid 3 comprises a substantially planar sealing mat 9 perpendicular to the central axis of symmetry X-X 'of the lid. When the cover 3 occupies its closed position on the frame 2, the central axis X-X 'of the cover 3 is substantially coincidental with the central axis of symmetry of the frame 2.

Le couvercle 3 comprend en outre une jupe cylindrique 10 située sous le voile d'obturation 9 coaxial à l'axe X-X' perpendiculairement au voile 9.The cover 3 furthermore comprises a cylindrical skirt 10 located under the sealing veil 9 coaxial with the axis X-X 'perpendicular to the veil 9.

La jupe cylindrique 10 s'étend sensiblement au voisinage du bord périphérique externe 3a du couvercle 3.The cylindrical skirt 10 extends substantially in the vicinity of the outer peripheral edge 3a of the lid 3.

Le regard de chaussée 1 comprend en outre un joint 11 solidaire du couvercle 3, réalisé en une matière plastique, tel que du caoutchouc synthétique, et qui vient en appui sur la collerette interne 8 lorsque le couvercle 3 est en position de fermeture de l'ouverture 7 du cadre 2. Le joint 11 a la double fonction d'insonorisation, c'est-à-dire d'empêcher les bruits de claquement du couvercle 3 sur le cadre 2 lors du basculement du couvercle 3 à sa position de fermeture ou du passage de véhicules sur le couvercle en appui sur le cadre 2, et d'étanchéité aux eaux de ruissellement, aux fines et/ou aux odeurs pouvant s'introduire dans l'espace entre le cadre 2 et le couvercle 3.The manhole 1 further comprises a gasket 11 integral with the lid 3, made of a plastics material, such as synthetic rubber, and which bears on the inner collar 8 when the lid 3 is in the closed position of the opening 7 of the frame 2. The seal 11 has the dual function of soundproofing, that is to say to prevent the clacking noise of the cover 3 on the frame 2 when tilting the cover 3 to its closed position or passage of vehicles on the lid resting on the frame 2, and sealing against runoff, fines and / or odors that can be introduced into the space between the frame 2 and the cover 3.

Le regard de chaussée 2 comprend également un verrou 12 diamétralement opposé à l'articulation du couvercle 3 au cadre 2 et permettant de verrouiller le couvercle 3 au cadre 2 à sa position de fermeture.The manhole 2 also comprises a latch 12 diametrically opposed to the hinge of the lid 3 to the frame 2 and for locking the lid 3 to the frame 2 in its closed position.

Selon l'invention, le joint 11 présente en section transversale sensiblement la forme d'un U coiffant la jupe cylindrique 10 et comportant des moyens assurant la fixation positive par clippage ou crantage du joint 11 sur la jupe 10 du couvercle 3 de manière que l'âme 11a de raccordement des deux branches 11b du joint 11 constitue une portée d'étanchéité en venant en appui sur la collerette interne 8 du cadre 2 en position basculée de fermeture du couvercle 3 à laquelle la jupe 10 se trouve ainsi au-dessus de la collerette 8 perpendiculairement à cette dernière.According to the invention, the seal 11 has in cross section substantially the shape of a U capping the cylindrical skirt 10 and comprising means ensuring the positive attachment by clipping or notching of the seal 11 on the skirt 10 of the cover 3 so that the 11a connecting core of the two branches 11b of the seal 11 constitutes a sealing surface bearing on the inner flange 8 of the frame 2 in the closed position of the lid 3 to which the skirt 10 is located thus above the collar 8 perpendicular to the latter.

Les moyens de fixation du joint 11 à la jupe 10 comprennent tout d'abord un tenon interne 13 solidaire de l'âme 11a du joint 11 en faisant saillie de l'âme 11a perpendiculairement à celle-ci entre les deux branches 11b du joint 11 et des lèvres souples 14 solidaires du tenon 13 en faisant saillie de chaque côté de ce tenon et s'engageant élastiquement dans une gorge annulaire 15 formée dans le chant de la jupe 10 afin de retenir efficacement le tenon 13 dans la rainure 15.The attachment means of the seal 11 to the skirt 10 comprise first of all an internal tenon 13 integral with the core 11a of the gasket 11 projecting from the core 11a perpendicular to it between the two branches 11b of the gasket 11 and flexible lips 14 integral with the pin 13 protruding from each side of this tenon and resiliently engaging in an annular groove 15 formed in the edge of the skirt 10 to effectively retain the pin 13 in the groove 15.

Comme représenté notamment à la figure 3, la gorge 15 présente en section transversale sensiblement la forme d'un trapèze isocèle débouchant extérieurement du chant de la jupe 10 par sa grande base. En outre, le tenon annulaire 13 est pourvu de trois paires de lèvres souples 14 situées les unes au dessus des autres, les lèvres 14 des deux premières paires partant de l'extrémité libre du tenon étant inclinées d'un même angle relativement au tenon 13 vers l'âme 11a du joint 11 pour être ainsi parallèles les unes aux autres en position désengagée du joint 11 de la jupe 10, tandis que les deux lèvres souples 14 de la troisième paire situées au voisinage de la base du tenon 13 s'étendent perpendiculairement de part et d'autre de celui-ci. Les lèvres souples 14 de ces paires font saillies de part et d'autre du tenon 13 d'une distance telle qu'en section transversale de ce tenon, elles présentent un profil externe en trapèze isocèle de forme conjuguée à celle de la gorge 15 de la jupe 10.As represented in particular at figure 3 , the groove 15 has in cross section substantially the shape of an isosceles trapezium opening outwardly of the edge of the skirt 10 by its large base. In addition, the annular post 13 is provided with three pairs of flexible lips 14 located one above the other, the lips 14 of the first two pairs starting from the free end of the tenon being inclined at the same angle relative to the tenon 13 towards the core 11a of the joint 11 so as to be parallel to each other in the disengaged position of the seal 11 of the skirt 10, while the two flexible lips 14 of the third pair located in the vicinity of the base of the post 13 extend perpendicularly on both sides of it. The flexible lips 14 of these pairs protrude on both sides of the post 13 by a distance such as in cross section of the post, they have an isosceles trapezoidal external profile of shape conjugate to that of the groove 15 of the skirt 10.

Le tenon 13 peut présenter en section transversale une forme sensiblement en trapèze isocèle dont la grande base constitue de pied de liaison du tenon 13 à l'âme 11a du joint 11.The tenon 13 may have in cross section a substantially isosceles trapezoidal shape whose large base constitutes the connecting leg of the post 13 to the core 11a of the seal 11.

Lorsque le tenon 13 est engagé dans la gorge 15 de la jupe 10, les lèvres 14 viennent élastiquement en appui par leurs extrémités sur les deux faces latérales de la gorge 15 pour exercer un effort de retenue du tenon 13 dans la gorge 15.When the tenon 13 is engaged in the groove 15 of the skirt 10, the lips 14 come elastically supported by their ends on the two lateral faces of the groove 15 to exert a retaining force of the pin 13 in the groove 15.

Les moyens de fixation du joint 11 à la jupe 10 comprennent en outre des stries sensiblement parallèles 15 solidaires des deux faces internes des branches 11b du joint 11 et venant en appui serré respectivement sur les deux faces latérales de la jupe cylindrique 10 une fois le joint 11 monté sur la jupe 10.The fastening means of the gasket 11 to the skirt 10 further comprise substantially parallel ridges 15 secured to the two inner faces of the arms 11b of the gasket 11 and pressing respectively against the two lateral faces of the cylindrical skirt 10 once the seal 11 mounted on the skirt 10.

Les stries 16 peuvent être légèrement inclinées vers l'âme 11a du joint 11 afin de mieux s'agripper aux faces latérales correspondantes de la jupe 10 et les deux branches 11b du joint 11 peuvent converger légèrement l'une vers l'autre en position désengagée de la jupe 10 afin d'enserrer élastiquement les faces latérales de la jupe 10 lorsque le joint 11 chausse cette jupe. Les stries 16 peuvent s'étendre sur pratiquement toute la hauteur de chaque branche 11b du joint 11.The ridges 16 may be slightly inclined towards the core 11a of the seal 11 in order to better grip the corresponding lateral faces of the skirt 10 and the two branches 11b of the seal 11 may converge slightly towards each other in the disengaged position. of the skirt 10 to elastically grip the lateral faces of the skirt 10 when the seal 11 shoes this skirt. The ridges 16 may extend over almost the entire height of each branch 11b of the seal 11.

Les moyens de fixation du joint 11 à la jupe 10 sont d'une conception telle qu'ils permettent la fixation du joint 11 à la jupe 10 sans nécessiter d'usinage de la jupe 10 et de sa gorge 15 qui restent brute de fonderie.The fastening means of the seal 11 to the skirt 10 are of a design such that they allow the attachment of the gasket 11 to the skirt 10 without requiring machining of the skirt 10 and its groove 15 which remain rough cast.

Avantageusement, la matière à base de caoutchouc synthétique du joint 11 peut être un terpolymère d'éthylène-propylène-diène (EPDM), matière résistant à la fois aux rayons ultraviolets, aux contraintes mécaniques et au temps.Advantageously, the synthetic rubber material of the gasket 11 may be an ethylene-propylene-diene terpolymer (EPDM), a material resistant to both ultraviolet rays, mechanical stresses and time.

Le joint 11 peut également être pourvu d'une lèvre périphérique externe souple 17 faisant saillie de la face externe de la branche externe 11b du joint 11 et venant élastiquement en appui sur la face annulaire interne de la paroi 6 du cadre 2 en position de fermeture du couvercle 3 sur le cadre 2 pour augmenter l'étanchéité de ce joint entre couvercle 3 et cadre 2. Deux ou plusieurs lèvres périphériques 17 peuvent être prévues à la branche 11b du joint 11 parallèlement les unes au-dessus des autres.The seal 11 may also be provided with a flexible outer peripheral lip 17 projecting from the outer face of the outer leg 11b of the seal 11 and resiliently bearing against the inner annular face of the wall 6 of the frame 2 in the closed position cover 3 on the frame 2 to increase the seal of this seal between cover 3 and frame 2. Two or more peripheral lips 17 may be provided to the branch 11b of the gasket 11 parallel to one another above.

Le nombre de lèvres 14 et de stries 16, leurs inclinaisons et leur formes sont déterminés afin d'obtenir un bon compromis entre la mise en place et la fixation par clippage du joint élastique 11 sur la jupe cylindrique 10.The number of lips 14 and ridges 16, their inclinations and their shapes are determined in order to obtain a good compromise between the establishment and fixing by clipping of the elastic seal 11 on the cylindrical skirt 10.

Selon une variante de réalisation, la gorge 15 de la jupe 10, bien que cela soit moins avantageux, peut avoir en section transversale une forme en U renversé, auquel cas, les lèvres souples 14 feraient saillies de part et d'autre du tenon, de section transversale rectangulaire, suivant une même longueur pour procurer aux lèvres, lorsque considérées en section transversale, un profil de forme complémentaire à celle de la gorge 15, les lèvres 14 gardant leur fonction de s'opposer au retrait du joint 11 de la jupe 10 une fois engagées élastiquement dans la gorge 15.According to an alternative embodiment, the groove 15 of the skirt 10, although this is less advantageous, may have an inverted U-shaped cross-section, in which case the flexible lips 14 would protrude on either side of the post, of rectangular cross section, according to the same length to provide the lips, when considered in cross section, a shape profile complementary to that of the groove 15, the lips 14 retaining their function to oppose the removal of the seal 11 of the skirt 10 when engaged elastically in the throat 15.

L'invention propose ainsi un joint d'étanchéité et d'insonorisation pour couvercle de regard de chaussée d'une structure permettant sa fixation aisée à une jupe de ce couvercle sans nécessiter d'usinage particulier de la jupe et de sa gorge qui restent brutes de fonderie, et qui est fermement solidarisé à la jupe, sans risque de s'en détacher lors de l'opération de basculement du couvercle à sa position d'ouverture malgré la présence de déchets entre la collerette d'assise 2 du cadre 2 et la portée d'étanchéité de ce joint qui ont tendance à coller ce dernier à la collerette.The invention thus proposes a seal and soundproofing for a manhole cover of a structure allowing its easy attachment to a skirt of this cover without requiring special machining of the skirt and its throat which remain raw. of foundry, and which is firmly secured to the skirt, without risk of detaching it during the tilting operation of the cover to its open position despite the presence of waste between the seat flange 2 of the frame 2 and the sealing range of this seal which tend to stick it to the collar.

L'invention a été décrite en référence à un cadre et couvercle circulaires, mais il est bien entendu qu'elle peut s'appliquer à des cadres et couvercles de regards de chaussée rectangulaires, carrés ou autres. Dans ce cas, la jupe située sous le couvercle pourrait être constituée par quatre nervures présentant la forme générale d'un rectangle ou d'un carré et le joint pourrait être constitué sous forme de quatre bandes indépendantes fixées par clippage respectivement sur les quatre nervures de la jupe venant de fonderie, chaque nervure étant pourvue d'une rainure également brute de fonderie, formée dans le chant de la nervure pour retenir le tenon de la bande correspondante du joint. Bien entendu, chaque bande du joint aura en section transversale une forme identique à la section transversale du joint annulaire précédemment décrit. Ainsi, chaque bande du joint aura une structure identique à celle du joint annulaire et sera de la même matière que ce dernier. La rainure de chaque nervure de la jupe présentera en section transversale sensiblement la forme d'un trapèze isocèle débouchant extérieurement du chant de la nervure par sa grande base.The invention has been described with reference to a circular frame and cover, but it is understood that it can be applied to frames and covers for rectangular, square or other manholes. In this case, the skirt under the cover could be constituted by four ribs having the general shape of a rectangle or a square and the seal could be constituted in the form of four independent strips fixed by clipping respectively on the four ribs of the skirt coming from foundry, each rib being provided with a groove also raw foundry, formed in the edge of the rib to retain the tenon of the corresponding band of the seal. Of course, each band of the seal will have in cross section a shape identical to the cross section of the annular seal described above. Thus, each band of the joint will have a structure identical to that of the annular seal and will be of the same material as the latter. The groove of each rib of the skirt will have in cross section substantially the shape of an isosceles trapezium opening outwardly from the edge of the rib by its large base.

Par ailleurs, l'invention peut s'appliquer à un couvercle non articulé à son cadre de support et qui peut être tout simplement encastré dans le cadre.Furthermore, the invention can be applied to a lid that is not articulated to its support frame and that can simply be recessed into the frame.

Claims (19)

  1. A manhole cover comprising a frame (2) delimiting an opening (7) and provided with a bearing internal peripheral rib (8), a lid (3) allowing obturation of the opening (7) of the frame (2) and provided with a skirt (10) located under the lid (3), and a gasket (11) secured to the lid (3) bearing upon the bearing rib (8) when the lid (3) is in the position for closing the opening (7) of the frame (3), characterized in that the gasket (11) has a cross-section substantially in the shape of a U capping the skirt (10) and including means ensuring positive attachment by clipping of the gasket (11) on the skirt (10) of the lid (3).
  2. The manhole cover according to claim 1, characterized in that the means for attaching the gasket (11) to the skirt (10) comprise an internal tenon (13) protruding from the core (11a) of the gasket (11) perpendicularly to the latter between both branches (11b) of the latter and flexible lips (14) located on each side of the tenon (13) capable of elastically engaging into a groove (15) formed in the edge of the skirt (10) in order to retain the tenon (13) in the groove (15).
  3. The manhole cover according to claim 1 or 2, characterized in that the means for attaching the gasket (11) to the skirt (10) further comprise substantially parallel striations (16) secured to both internal faces of the branches (11b) of the gasket (11) and capable of closely bearing upon both side faces of the skirt (10), respectively.
  4. The manhole cover according to claim 2 or 3, characterized in that the groove (15) cross-sectionally has substantially the shape of an isosceles trapezium exteriorly opening out from the edge of the skirt (10) through its large base.
  5. The manhole cover according to claim 4, characterized in that at least two pairs of parallel lips (14) protruding on either side of the tenon (13) from the free end of the tenon (13) are tilted by a same angle relatively to the tenon (13) towards the core (11a) of the U of the gasket (11) so as to have in a cross-section of the tenon (13) an external isosceles trapezium profile with a conjugate form to the groove 15.
  6. The manhole cover according to one of the preceding claims, characterized in that both branches (11b) of the U of the gasket (11) converge towards each other in order to clasp the skirt (10) of the lid (3).
  7. The manhole cover according to one of the preceding claims, characterized in that the gasket (11) comprises at least one flexible external peripheral lip (17) sealably bearing upon the internal face of the peripheral wall (6) of the frame (2).
  8. The manhole cover according to one of the preceding claims, characterized in that the gasket (11) is made in a single piece from a material based on synthetic rubber, such as an ethylene-propylene-diene terpolymer.
  9. The manhole cover according to one of the preceding claims, characterized in that the frame (2) and the lid (3) are circular, the bearing peripheral rib (8) is a radially internal flange, the skirt (10) is cylindrical, the groove (15) of the skirt (10) is a ring-shaped groove and the gasket (11) and its internal tenon (13) are ring-shaped.
  10. The manhole cover according to one of claims 1 to 8, characterized in that the frame (2) and the lid (3) are rectangular or square, the skirt (10) is formed by four ribs with the general shape of a rectangle or square each comprising a groove (15) and the gasket (11) consists of four independent strips attached by clipping on the four ribs of the skirt (10), respectively.
  11. The manhole cover according to one of the preceding claims, characterized in that the skirt (10) and the groove (15) are cast-finished.
  12. A seal and sound-insulation gasket (11) for a manhole cover lid (3) characterized in that it cross-sectionally has substantially the shape of a U capable of capping a skirt (10) of the lid (3) and includes means allowing attachment by clipping of the gasket (11) on the skirt (10) of the lid (3).
  13. The seal and sound-insulation gasket according to claim 12, characterized in that the means allowing attachment of the gasket (11) to the skirt (10) comprise an internal tenon (13) protruding from the core (11a) of the gasket (11) perpendicularly to the latter between both branches (11b) of the latter and flexible lips (14) located on each side of the tenon (13) capable of elastically engaging into a groove (15) formed in the edge of the skirt (10) for retaining the tenon (13) in the groove (15).
  14. The seal and sound-insulation gasket according to claim 13, characterized in that the means for attaching the gasket (11) to the skirt (10) further comprise substantially parallel striations (16) secured to both internal faces of the branches (11b) of the gasket (11) and capable of closely bearing upon both side faces of the skirt (10), respectively.
  15. The seal and sound-insulation gasket according to claim 13 or 14, characterized in that at least two pairs of parallel lips (14) protrude from either side of the tenon (13) from the free end of the tenon (13) and are tilted by a same angle relatively to the tenon (13) towards the core (11a) of the U of the gasket (11) so as to have in a cross-section of the tenon (13) an external isosceles trapezium profile.
  16. The seal and sound-insulation gasket according to one of claims 12 to 15, characterized in that both branches (11b) of the U of the gasket (11) converge towards each other.
  17. The seal and sound-insulation gasket according to one of claims 12 to 16, characterized in that it comprises at least one flexible external peripheral lip (17) which may sealably bear upon the internal face of the peripheral wall (6) of the frame (2).
  18. The seal and sound-insulation gasket according to one of claims 12 to 17, characterized in that it is made in a single piece from a material based on synthetic rubber, such as an ethylene-propylene-diene terpolymer.
  19. The seal and sound-insulation gasket according to one of claims 12 to 18, characterized in that it is ring-shaped or in the shape of a strip.
EP11708925.0A 2010-02-18 2011-02-14 Cover for a manhole and a sealing Active EP2536883B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11708925T PL2536883T3 (en) 2010-02-18 2011-02-14 Cover for a manhole and a sealing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1051171A FR2956418B1 (en) 2010-02-18 2010-02-18 FRAME AND BUFFER LIFT WITH BUILT-IN AND SEAL SEAL
PCT/FR2011/050299 WO2011101582A2 (en) 2010-02-18 2011-02-14 Manhole cover having a frame and buffer provided with a damping and sealing gasket

Publications (2)

Publication Number Publication Date
EP2536883A2 EP2536883A2 (en) 2012-12-26
EP2536883B1 true EP2536883B1 (en) 2017-11-08

Family

ID=42935452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11708925.0A Active EP2536883B1 (en) 2010-02-18 2011-02-14 Cover for a manhole and a sealing

Country Status (12)

Country Link
EP (1) EP2536883B1 (en)
CN (1) CN103025962B (en)
AU (1) AU2011217119B2 (en)
ES (1) ES2658659T3 (en)
FR (1) FR2956418B1 (en)
MA (1) MA33845B1 (en)
NO (1) NO2536883T3 (en)
NZ (1) NZ601741A (en)
PL (1) PL2536883T3 (en)
PT (1) PT2536883T (en)
RU (1) RU2012141240A (en)
WO (1) WO2011101582A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2642935B1 (en) * 2016-05-19 2018-09-13 Manufacturas Y Transformados Ab, S.L. Cover for use on public roads

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Publication number Priority date Publication date Assignee Title
JPS6080142U (en) * 1983-11-02 1985-06-04 不二グレ−ト工業株式会社 Sealing devices such as iron lids
JP2507417Y2 (en) * 1989-04-07 1996-08-14 シーアイ化成株式会社 Water-proof structure for the lid receiving part such as drainage
FR2660678B1 (en) 1990-04-05 1993-05-21 Sodif Sa FLOOR REGARD WITH ARTICULATED BUFFER, DAMPING JOINT AND TILT CLOSURE.
BE1007256A3 (en) * 1993-06-30 1995-05-02 Kruyfhooft Christina Device for closing of wells.
JPH0978619A (en) * 1995-09-11 1997-03-25 Takiron Co Ltd Structure for fixing lid to lid support frame
US5813352A (en) * 1995-11-01 1998-09-29 Trinity Industries, Inc. Vented hatch cover
JP2001049681A (en) * 1999-08-04 2001-02-20 Fuji Cast:Kk Waterproof lid for manhole or the like
US6494338B1 (en) * 2000-10-12 2002-12-17 Trn Business Trust Hatch cover gasket
FR2897880B1 (en) * 2006-02-28 2009-11-06 Saint Gobain Pam Sa CLOSURE DEVICE.
FR2904014B1 (en) * 2006-07-21 2008-10-10 Norinco Soc Par Actions Simpli DEVICE FOR LOCKING AND UNLOCKING USING A KEY OF A BUFFER OR COVER ON A FRAME, IN PARTICULAR A PAVEMENT LOOK.
CN100540415C (en) * 2007-12-20 2009-09-16 南车长江车辆有限公司 The bulk powder tank truck self-sealing manhole cover
CN101597909A (en) * 2009-07-13 2009-12-09 长沙金龙铸造实业有限公司 All-directional wedge-shaped pretension sound-proof well lid

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
AU2011217119A1 (en) 2012-09-20
FR2956418B1 (en) 2012-08-17
WO2011101582A2 (en) 2011-08-25
WO2011101582A3 (en) 2014-09-04
NZ601741A (en) 2015-02-27
CN103025962B (en) 2016-01-20
PT2536883T (en) 2018-02-16
PL2536883T3 (en) 2018-04-30
RU2012141240A (en) 2015-03-20
NO2536883T3 (en) 2018-04-07
MA33845B1 (en) 2012-12-03
EP2536883A2 (en) 2012-12-26
ES2658659T3 (en) 2018-03-12
AU2011217119B2 (en) 2016-09-29
FR2956418A1 (en) 2011-08-19
CN103025962A (en) 2013-04-03

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