EP2376714B1 - Manhole with frame and hinged cover - Google Patents

Manhole with frame and hinged cover Download PDF

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Publication number
EP2376714B1
EP2376714B1 EP09805760.7A EP09805760A EP2376714B1 EP 2376714 B1 EP2376714 B1 EP 2376714B1 EP 09805760 A EP09805760 A EP 09805760A EP 2376714 B1 EP2376714 B1 EP 2376714B1
Authority
EP
European Patent Office
Prior art keywords
cam
counter
frame
assembly according
hinge assembly
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.)
Active
Application number
EP09805760.7A
Other languages
German (de)
French (fr)
Other versions
EP2376714A1 (en
Inventor
Jean-Claude Royer
Vincent Rotharmel
John Neil Pickavance
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain PAM SA
Original Assignee
Saint Gobain PAM SA
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Filing date
Publication date
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Publication of EP2376714A1 publication Critical patent/EP2376714A1/en
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Publication of EP2376714B1 publication Critical patent/EP2376714B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1418—Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs
    • E—FIXED CONSTRUCTIONS
    • 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
    • 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
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D1/00—Pinless hinges; Substitutes for hinges
    • E05D1/04—Pinless hinges; Substitutes for hinges with guide members shaped as circular arcs
    • 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
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination
    • 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
    • E03F2005/061—Gully gratings hinged to the body of the gully

Definitions

  • a buffer according to the preamble of claim 1 is known by EP0856611 A .
  • the document EP 1 013 833 describes an access hatch to galleries and underground structures provided with a frame and a buffer, the buffer being adapted to close an opening defined by the frame.
  • the buffer is hinged to the frame by means of a hinge which comprises a hinge pin 13 fixed to the frame and a groove 19 formed in the buffer.
  • the access hatch further comprises a heel 20 with a flat surface fixed to the frame and lugs 26 projecting from the pad.
  • the lugs comprise a rounded cam surface which rests on the heel when the tampon is opened (see column 5, lines 2 to 29 of EP 1 013 833 ).
  • the hinge pin 13 is fixed to the frame by means of lugs 12 welded to a plate itself fixed to the frame and the underground chamber by screws or bolts.
  • lugs 12 welded to a plate itself fixed to the frame and the underground chamber by screws or bolts.
  • the fastening screws or bolts of the plate may become loose and cause the platen to be misplaced, and therefore to be damaged. hinge axis, thus causing jamming and poor closure of the buffer.
  • the lugs 12 supporting the hinge pin can bend, or even dissociate from the plate in case of rupture of the welds, again leading to a defective joint.
  • the document FR 2,765,255 discloses an access door comprising a frame and a plurality of buffers.
  • the buffers can be moved from a closed position to an open position and held in a fully open position by a support piece cooperating with an edge of the pad.
  • This device does not allow a positive guide of the buffer between its closed position and its open position and is also difficult to manufacture due to many components.
  • the invention aims to overcome at least one of these problems, and to design a hinge assembly that is resistant and easy to manufacture.
  • the subject of the invention is a hinge assembly, characterized in that the first angular range and the additional angular range overlap over an overlapping angular range which amounts to at least 60 ° and over the entire the extent of which both the first cam and cam follower as well as the cams and counter cam complementary cooperate.
  • the road device 2 is shown in a top plan view.
  • the road device 2 comprises a frame 4 of polygonal shape, in particular square or rectangular, and at least one buffer, in this case two buffers 6.
  • the frame 4 defines an access opening 10, for example to underground telecommunications facilities.
  • the frame 4 defines an outer side E and an inner side I.
  • Frame 4 defines a DC frame plan parallel to the plane of the figure 1 in which the opening 10 ( Figure 2 ).
  • the frame 4 comprises a base 12 extending parallel to the frame plane CC and a wall 14 extending substantially perpendicular to the frame plane CC.
  • the wall 14 thus delimits a substantially polygonal surface and having in this case a square section.
  • the frame defines a central axis X-X, extending perpendicularly to the C-C frame plane.
  • the expressions "radially” and “circumferentially” refer later to the central axis X-X.
  • the pad 6 comprises a covering mat 20 adapted to at least partially cover the opening 10 and extending in a cover plane P-P.
  • the covering veil 20 has an outer covering surface 22 and an inner covering surface 24.
  • the access door 2 further comprises an insert 30, a screw 32 and a nut 34 (cf. figure 4 ).
  • the access door 2 comprises at least one hinge 36 adapted to allow an angular displacement of the buffer 6 relative to the frame 4 between an open position and a closed position.
  • the closed position is shown on the Figures 1 to 4 and 11 .
  • the buffer 6 at least partially covers the opening 10, and the plane PP of the covering web 20 extends parallel to the frame plane CC.
  • the cover plane PP of the covering web 20 extends substantially perpendicular to the frame plane CC.
  • the buffer is movable between two open positions, namely an unlocked open position (cf. Figure 14 ) and an open open position.
  • the buffer 6 In the released open position, the buffer 6 is movable between this position and the closed position.
  • the pad 6 In the locked open position, the pad 6 is prevented from tilting to its closed position.
  • the buffer can switch to an extreme open position (cf. Figure 15 ), in which the cover veil 20 is moved more than 90 ° from its closed position, and is for example tilted 110 °.
  • the hinge 36 comprises a first frame cam 38C, as well as a first buffer cam 38T.
  • the first frame cam 38C has a cam surface 40 which is a partial cylinder with an arcuate section. This cam surface 40 has a concave shape and joins continuously to an inner surface of the wall 14.
  • the first frame cam 38C is disposed entirely within the volume defined by the wall 14, and protrudes therefrom. wall 14 with a component directed radially towards the axis XX.
  • the cam surface 40 leads to low wear of the hinge during use, and facilitates docking of the buffer cam follower 38T at the beginning of the closure.
  • the first buffer cam follower 38T is disposed adjacent to the cover web 20 and forms an edge of the pad 6.
  • the first buffer cam follower 38T has a camming surface 42 which is an arcuate partial cylinder, convex. This counter-cam surface 42 forms, for example, an angular sector of approximately 5 ° to 15 °.
  • the first buffer counter-cam 38T joins continuously to the outer surface 22 of the cover web 20.
  • the first frame cam 38C and the first buffer cam-against 38T are adapted to cooperate on a first angular range ⁇ of the cover web 20.
  • This first angular range ⁇ extends from the open position, possibly to a game near the order of 5 °, to the closed position, and is between 60 ° and 90 °. Throughout this first angular range ⁇ , the two cam surfaces 40 and cam follower 42 apply to one another.
  • this first angular range ⁇ is delimited on the one hand by the open position of the buffer 6 and on the other hand by the closed position of the buffer 6 with respect to the frame 4, thus forming an angle of approximately 90 °, possibly with a clearance near which is of the order of 5 °.
  • the first cam follower 38T is located entirely within the volume defined by the wall 14.
  • the hinge 36 further includes a second frame cam 44C and a second buffer cam 44T.
  • the second frame cam 44C is disposed on the base 12 of the frame and extends inside the volume defined by the wall 14.
  • the second frame cam 44C and buffer cam follower 44T are adapted to cooperate exclusively on a second angular range ⁇ of the buffer 6 relative to the frame 4 which corresponds to cover 20 positions between the open and closed positions. More precisely, the second angular range ⁇ is delimited on the one hand by the closed position of the web 20 and a first inclined intermediate position (see FIG. figure 12 ).
  • This first intermediate position corresponds to an inclination of the web 20 preferably between 40 ° and 50 ° with respect to the closed position, and in particular at an inclination of 45 ° as shown in FIG. Figure 12 .
  • the angular range ⁇ thus has a range of between 40 ° and 50 ° from the closed position.
  • the angular range ⁇ and the angular range ⁇ overlap on at least 10 °.
  • the pad 6 is provided with a projection 46 extending perpendicularly to the sail plane P-P.
  • the second buffer counter-cam 44T has a counter-cam surface which is formed by a corner of this projection 46.
  • the second frame cam 44C has a first cam surface 48 and a second cam surface 49.
  • the first cam surface 48 is substantially planar and extends parallel to the frame plane CC.
  • the second partial cam surface 49 is also flat and inclined with respect to the first cam surface 48.
  • the first cam surface 48 cooperates with the second buffer cam 44T exclusively on a first partial angular range ⁇ 1. extending from the closed position to a second intermediate position, which is different from the first intermediate position.
  • the first partial angular range ⁇ 1 corresponds to an angle between the plane PP and the plane CC between 0 ° and 15 ° approximately.
  • the second cam part surface 49 cooperates with the second buffer counter-cam 44T exclusively on a second partial angular range ⁇ 2 distinct from the first partial angular range ⁇ 1, the partial angular ranges ⁇ 1 and ⁇ 2 taken together constituting the second angular range ⁇ .
  • This partial angular range ⁇ 2 is therefore between 15 ° and 40 ° at 50 °, and more particularly between 15 ° and 45 ° as shown in FIG. figure 12 .
  • the first camming surface 48 cooperates with the counter-cam surface of the second buffer counter-cam 44T
  • the first frame cam 38C cooperates with the counter-cam surface 42 of the first buffer cam-against 38T.
  • the counter-cam surface of the second buffer counter cam 44T applies to the second cam portion surface 49 and, simultaneously, the cam follower 42 of the first buffer cam follower 38T is applied to the cam surface 40 of the first frame cam 38C.
  • the inclination of the second camming surface 49 facilitates the docking of this surface by the second cam follower 44T when closing the buffer.
  • the hinge 36 further includes a third frame cam 144C and a third buffer cam 144T.
  • These third frame cam 144C 144A and buffer cam-cam cooperate exclusively on a third angular range y of the pad 6 relative to the frame 4.
  • This third angular range is located entirely outside the second angular range ⁇ . It is delimited, on the one hand by the first inclined intermediate position which limits the second angular range ⁇ and on the other hand by the open buffer position, possibly to a game close to a few degrees.
  • the angular range is therefore between 40 ° and 50 °, and more particularly extends over 45 ° as shown in FIG. Figure 12 .
  • the angular range y and the angular range ⁇ overlap over at least 40 °. In the example described, the angular ranges ⁇ and y overlap for approximately 45 °.
  • the third frame cam 144C is formed by a cam surface 146 disposed on the projection 62 and the third cam follower 144T is formed by a camming surface 148 formed by the bottom surface of the pad , and particularly by the recess 64 (see below).
  • the buffer and the frame cooperate simultaneously with two pairs of cams and cam followers over a wide angular range, which is preferably at least 60 ° and which in this case reaches 90 °, possibly to the aforementioned clearance.
  • the view 2 further comprises support means 50 adapted to support the buffer 6 relative to the frame 4 in the closed position of the buffer and in a direction perpendicular to the C-C frame plane.
  • the support means 50 comprise the first cam surface 48 and the free end of the projection 46.
  • the free end of the projection 46 is applied to the first partial cam surface 48 in the closed state of the cam. buffer 6.
  • the contact between the free end of the projection 46 and the first partial cam surface 48 is a surface contact.
  • the support means 50 consist of the first cam surface 48 and the free end of the projection 46.
  • the support between the pad and the frame on the opposite side of the hinge is made by a protrusion similar to the projection 46 under the buffer which bears on a horizontal surface similar to the surface 48 of the frame.
  • the projection 46 has a flat end surface 52 parallel to the plane of coverage P-P, thus ensuring the bearing stability of the buffer on the frame.
  • the road device 2 further comprises retaining means 60 adapted to block the buffer 6 relative to the frame 4 and in translation along the frame plane CC when the buffer 6 is in the closed position (see Figures 3 and 11 ).
  • These retaining means 60 comprise the projection 62 integral with the frame 4, as well as a recess 64 formed in the inner covering surface 24 of the pad 6. In the closed position of the pad 6, the projection 62 engages in the recess 64 and limits the displacement of the buffer 6 according to the plane PP. In particular, these retaining means 60 limit the displacement of the pad 6 with respect to the frame in a direction of translation tending to move the pad away from the wall 14 associated with the hinge and in particular oppose a contact of the pad with another buffer or with the side of the frame 4 located opposite the hinge 36. These retaining means 60 are particularly important in the case where the buffer 6 is connected to the frame 4 by means of a cylinder requesting the buffer 6 in a direction directed away from the wall 14 which is associated with the hinge 36.
  • the view 2 further comprises blocking means 70 adapted to define the opening position of the buffer 6 relative to the frame 4.
  • These locking means 70 are adapted to allow movement of the buffer 6 relative to the frame 4 between the position released open ( Figure 14 ) in which the pad 6 can be moved from its open position to its closed position, and a locked open position in which a tilting of the pad 6 to the closed position is prevented.
  • the locking means 70 comprise a notch 72 extending between the first frame cam 38C and the projection 62 (see FIG. Figures 11 and 12 ).
  • the notch 72 defines an abutment surface 74 adjacent to the projection 62 and an abutment surface 76 adjacent to the first frame cam 38C.
  • the blocking means 70 comprise a corresponding abutment surface 78 (see FIG. figure 12 ) when the pad 6 is in the notch 72 and when moved to its closed position, the abutment surface 78 is pressed against the abutment surface 74, preventing the pad from tilting.
  • the outer surface 22 of the pad 6 is further provided with a recess 79 adapted to at least partially receive the abutment surface 76 and thereby allow the pad 6 to reach the extreme open position in which pad achieves an angle of about 110 ° with respect to its closed position ( Figure 15 ).
  • the frame 4 is free of undercut in the direction extending perpendicularly to the C-C frame plane.
  • the buffer 6 is free of undercut in a direction extending perpendicular to the plane of coverage P-P.
  • Frame 4 is made of cast iron.
  • at least one frame cam 38C, 44C, 144C and preferably all the frame cams, is or are manufactured in one piece, and are in particular integral with the frame 4.
  • the pad 6 is made of cast iron.
  • at least one cam follower 38T, 44T, 144T and preferably all the cams, is or are manufactured in one piece, and are in particular integral with the buffer 6.
  • the buffer 6 of the road device described above can be detached from the frame 4 or from its closed position, by translation of the buffer in a direction perpendicular to its plane PP, or from its open position, by translation of the buffer in a direction substantially parallel to its plane PP.
  • the mounting of the buffer 6 on the frame 4 can also be performed with the buffer 6 in horizontal or vertical position.
  • the frame 4 and the buffer 6 are advantageously usable in connection with a not shown lifting aid cylinder which is adapted to push the buffer 6 to its open position.
  • the insert 30 is provided.
  • the insert 30 is fixed to the frame 4 next to the projection 62 and the first frame cam 38C (cf. Figures 3 to 6 ).
  • the insert 30 has a projection 80 extending parallel to the projection 62.
  • the projection 80 has a bridge 82 which bears against the projection 62 in the assembled state. This bridge 82 forms a buffer retaining surface 6 relative to the frame during the opening and closing phases of the buffer, when the cylinder tends to push the buffer towards the side of the frame located opposite the hinge.
  • the buffer has an appendage 84 (see figure 9 ) coming against the bridge 82 to limit the displacement of the buffer 6 to the side of the frame 4 located opposite the hinge 36.
  • the appendix 84 since the appendix 84 is placed between the projections 62 and 80 during the opening and closing movements of the buffer 6, it also ensures a guiding of the buffer 6 during its rotation, in particular limiting the displacements of the buffer 6 in a direction parallel to the wall 14 associated with the hinge 36.
  • This additional appendix 85 is offset from the appendix 84 and is adapted, in the closed position, to abut against the face of the projection 62 located opposite the insert 30.
  • the insert 30 is further provided with a fixing orifice 86 for fixing the jack.
  • the insert 30 also has a retaining surface 90 (see FIG. figure 10 ) adapted to retain the insert 30 relative to the frame 4 in a direction perpendicular to the DC frame plane and directed outwards.
  • the retaining surface 90 cooperates with a retaining surface 92 secured to the frame 4.
  • the insert 30 further comprises a retaining surface 94 adapted to retain the insert 30 against a displacement towards the center of the frame and cooperating with a complementary retaining surface 96 integral with the frame (see figure 8 ).
  • Additional and complementary retaining surfaces 98, 100 and 102, 104 are disposed on the insert 30 and the frame 4 and serve to retain the insert 30 relative to the frame 4 in the direction extending along the wall 14 and against the wall 14.
  • the insert 30 can be implemented exclusively in a single direction of placement M rectilinear extending parallel to the DC frame plane and along the wall 14 (cf. Figure 6 ).
  • the frame comprises a screw housing 110 receiving the screw 32 ( Figures 7 and 8 ).
  • the insert 30 is retained by the screw 32, the nut 34 and the housing 110 against a release of the frame 4 in a direction opposite to the meaning M.
  • the insert 30 is made in one piece with the projection 62, the assembly then being integral with the frame or attached to the frame by any suitable fastening means.
  • the third frame cam and the third buffer cam are an axis and a recess arcuate section which are applied to one another on the third angular range y .

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Description

La présente invention concerne un ensemble d'articulation, du type comprenant :

  • un tampon ayant un voile de couverture délimitant une surface de couverture, ce voile de couverture étant destiné à couvrir une ouverture et s'étendant selon un plan de couverture ;
  • une charnière adaptée pour permettre un déplacement angulaire du tampon entre une position ouverte et une position fermée,
  • la charnière comprenant une première came et une première contre-came, la première came et la première contre-came coopérant sur une première plage angulaire située entre les positions ouverte et fermée,
  • la charnière comportant une came supplémentaire et une contre-came supplémentaire coopérant sur une plage angulaire supplémentaire située entre les positions ouverte et fermée, la came supplémentaire et la contre-came supplémentaire ayant des profils différents des première came et première contre-came.
The present invention relates to a hinge assembly, of the type comprising:
  • a pad having a covering veil defining a cover surface, said cover veil being intended to cover an opening and extending in a covering plane;
  • a hinge adapted to allow angular displacement of the buffer between an open position and a closed position,
  • the hinge comprising a first cam and a first counter-cam, the first cam and the first cam against cooperating on a first angular range located between the open and closed positions,
  • the hinge comprising an additional cam and an additional counter-cam cooperating on an additional angular range located between the open and closed positions, the additional cam and the additional counter-cam having different profiles of the first cam and first cam follower.

Un tampon selon le préambule de la revendication 1 est connu par EP0856611 A .A buffer according to the preamble of claim 1 is known by EP0856611 A .

Le document EP 1 013 833 décrit une trappe d'accès aux galeries et ouvrages souterrains munie d'un cadre et d'un tampon, le tampon étant adapté pour fermer une ouverture délimitée par le cadre.The document EP 1 013 833 describes an access hatch to galleries and underground structures provided with a frame and a buffer, the buffer being adapted to close an opening defined by the frame.

Le tampon est articulé au cadre au moyen d'une charnière qui comprend un axe d'articulation 13 fixé au cadre et une gorge 19 ménagée dans le tampon. La trappe d'accès comporte en outre un talon 20 à surface plane fixé au cadre et des ergots 26 faisant saillie du tampon. Les ergots comprennent une surface de came arrondie qui s'appuie sur le talon lors de l'ouverture du tampon (voir colonne 5, lignes 2 à 29 de EP 1 013 833 ).The buffer is hinged to the frame by means of a hinge which comprises a hinge pin 13 fixed to the frame and a groove 19 formed in the buffer. The access hatch further comprises a heel 20 with a flat surface fixed to the frame and lugs 26 projecting from the pad. The lugs comprise a rounded cam surface which rests on the heel when the tampon is opened (see column 5, lines 2 to 29 of EP 1 013 833 ).

L'axe d'articulation 13 est fixé au cadre par l'intermédiaire de pattes 12 soudées à une platine elle-même fixée au cadre et à la chambre souterraine par des vis ou boulons. Une telle charnière est cependant fragile car, sous l'effort du tampon lors des opérations répétées d'ouverture et de fermeture, les vis ou boulons de fixation de la platine peuvent se desserrer et provoquer un mauvais positionnement de la platine, et donc de l'axe d'articulation, entraînant ainsi le coincement et une mauvaise fermeture du tampon. De plus, sous l'effort du tampon lors de l'articulation, les pattes 12 supportant l'axe d'articulation peuvent plier, voire même se désolidariser de la platine en cas de rupture des soudures, conduisant là encore à une articulation défectueuse.The hinge pin 13 is fixed to the frame by means of lugs 12 welded to a plate itself fixed to the frame and the underground chamber by screws or bolts. However, such a hinge is fragile because, under the force of the buffer during repeated opening and closing operations, the fastening screws or bolts of the plate may become loose and cause the platen to be misplaced, and therefore to be damaged. hinge axis, thus causing jamming and poor closure of the buffer. In addition, under the force of the buffer during articulation, the lugs 12 supporting the hinge pin can bend, or even dissociate from the plate in case of rupture of the welds, again leading to a defective joint.

En outre, l'articulation de ce document est coûteuse et compliquée à réaliser en raison des nombreuses étapes de formage et de soudage nécessaires pour la mise au point de la platine comportant l'axe d'articulation.In addition, the articulation of this document is expensive and complicated to achieve because of the many forming steps and welding necessary for the development of the plate having the axis of articulation.

Le document FR 2 765 255 décrit une trappe d'accès comprenant un cadre et une pluralité de tampons. Les tampons peuvent être déplacés d'une position fermée à une position ouverte et sont maintenus dans une position complètement ouverte grâce à une pièce de support coopérant avec un bord du tampon.The document FR 2,765,255 discloses an access door comprising a frame and a plurality of buffers. The buffers can be moved from a closed position to an open position and held in a fully open position by a support piece cooperating with an edge of the pad.

Ce dispositif ne permet pas un guidage positif du tampon entre sa position fermée et sa position ouverte et est également difficile à fabriquer en raison de nombreux composants.This device does not allow a positive guide of the buffer between its closed position and its open position and is also difficult to manufacture due to many components.

L'invention a pour but de pallier à au moins l'un de ces problèmes, et de concevoir un ensemble d'articulation qui soit résistant et facile à fabriquer.The invention aims to overcome at least one of these problems, and to design a hinge assembly that is resistant and easy to manufacture.

A cet effet, l'invention a pour objet un ensemble d'articulation caractérisé en ce que la première plage angulaire et la plage angulaire supplémentaire se recouvrent sur une plage angulaire de recouvrement qui s'élève à au moins 60° et sur toute l'étendue de laquelle simultanément aussi bien les premières came et contre-came que les came et contre-came supplémentaires coopèrent.For this purpose, the subject of the invention is a hinge assembly, characterized in that the first angular range and the additional angular range overlap over an overlapping angular range which amounts to at least 60 ° and over the entire the extent of which both the first cam and cam follower as well as the cams and counter cam complementary cooperate.

Selon des modes de réalisation particuliers, l'invention comporte une ou plusieurs des caractéristiques suivantes :

  • la plage angulaire de recouvrement s'élève à au moins l'une des valeurs suivantes : 65°, 70°, 80, 85°.
  • la plage angulaire de recouvrement et la première plage angulaire coïncident.
  • la première came a une surface de came de cylindre partiel à section en arc, notamment en arc de cercle.
  • la première contre-came est, lorsque le tampon est dans sa position fermée, située, notamment entièrement, à l'intérieur de la projection de la surface de couverture.
les came et contre-came supplémentaires comportent une deuxième came et une deuxième contre-came, la plage angulaire supplémentaire comprend une deuxième plage angulaire, la deuxième came et la deuxième contre-came coopérant sur cette deuxième plage angulaire située entre les positions ouverte et fermée.
  • la deuxième plage angulaire est délimitée par la position fermée.
  • la deuxième contre-came est située sur une extrémité d'une première saillie s'étendant perpendiculairement au plan de voile et la deuxième came comporte une première surface de came partielle.
  • la deuxième came comporte une deuxième surface de came partielle inclinée par rapport à la première surface de came partielle.
  • les came et contre-came supplémentaires comportent une troisième came et une troisième contre-came coopérant sur une troisième plage angulaire située entièrement en dehors de la deuxième plage angulaire.
  • la troisième came et la troisième contre-came sont un axe et un évidement à section d'arc de cercle.
  • l'ensemble comporte des moyens de support adaptés pour supporter le tampon par rapport à un cadre dans la position fermée selon une direction perpendiculaire au plan de couverture, en particulier ces moyens de support comprenant l'extrémité de la première saillie et la première surface de came partielle.
  • l'ensemble comporte des moyens de retenue adaptés pour bloquer le tampon par rapport à la première came en translation selon le plan de couverture lorsque le tampon est en position fermée, ces moyens de retenue comprenant une deuxième saillie fixe par rapport à la première came et qui coopère avec un évidement ménagé dans le tampon lorsque celui-ci est en position fermée.
  • l'ensemble comprend des moyens de blocage définissant une position d'ouverture bloquée dans laquelle un basculement du tampon vers la position fermée est empêché et permettant un déplacement du tampon entre cette position d'ouverture bloquée et une position d'ouverture débloquée du tampon.
  • les moyens de blocage comprennent une surface de butée adjacente à la première came et une surface de butée située en face de la première came.
  • au moins l'une des contre-cames est fixée au tampon, et notamment au moins une contre-came est venue de matière avec le tampon.
According to particular embodiments, the invention comprises one or more of the following features:
  • the overlapping angular range is at least one of the following values: 65 °, 70 °, 80, 85 °.
  • the overlapping angular range and the first angular range coincide.
  • the first cam has a partial cylinder cam surface with an arcuate section, in particular an arc of a circle.
  • the first cam follower is, when the buffer is in its closed position, located, in particular entirely, inside the projection of the cover surface.
the additional cams and counter-cams comprise a second cam and a second counter-cam, the additional angular range comprises a second angular range, the second cam and the second counter-cam; cooperating on this second angular range located between the open and closed positions.
  • the second angular range is delimited by the closed position.
  • the second cam follower is located on one end of a first projection extending perpendicularly to the sail plane and the second cam has a first partial cam surface.
  • the second cam has a second partial cam surface inclined with respect to the first partial cam surface.
  • the additional cams and counter cams comprise a third cam and a third counter cam cooperating on a third angular range located entirely outside the second angular range.
  • the third cam and the third counter-cam are an axis and a recess with arcuate section.
  • the assembly comprises support means adapted to support the buffer with respect to a frame in the closed position in a direction perpendicular to the plane of coverage, in particular these support means comprising the end of the first projection and the first surface of partial cam.
  • the assembly comprises retaining means adapted to block the buffer relative to the first cam in translation along the cover plane when the buffer is in the closed position, these retaining means comprising a second fixed projection relative to the first cam and which cooperates with a recess in the buffer when the latter is in the closed position.
  • the assembly comprises locking means defining a locked open position in which a tilting of the buffer to the closed position is prevented and allowing a displacement of the buffer between this locked open position and an unlocked opening position of the buffer.
  • the locking means comprise an abutment surface adjacent to the first cam and an abutment surface facing the first cam.
  • at least one of the against-cams is fixed to the buffer, and in particular at least one against-cam is integral with the buffer.

L'invention a également pour objet un dispositif de voirie du type comprenant :

  • un cadre délimitant une ouverture, caractérisé en ce qu'il comporte un ensemble tel que défini ci-dessus, en ce que le tampon est adapté pour couvrir l'ouverture du cadre et en ce que la ou chaque came est fixée au cadre.
The invention also relates to a road device of the type comprising:
  • a frame defining an opening, characterized in that it comprises an assembly as defined above, in that the pad is adapted to cover the opening of the frame and in that the or each cam is fixed to the frame.

Selon des modes de réalisation particuliers, le dispositif de voirie peut comporter l'une ou plusieurs des caractéristiques suivantes :

  • la ou chaque came est fabriquée d'une seule pièce avec le cadre.
  • la ou chaque came est une pièce rapportée au cadre.
According to particular embodiments, the road device may include one or more of the following features:
  • the or each cam is made in one piece with the frame.
  • the or each cam is a piece attached to the frame.

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

  • la figure 1 est une vue de plan d'un dispositif de voirie selon l'invention, le dispositif étant fermé ;
  • la figure 2 est une vue en perspective d'un ensemble d'articulation du dispositif de voirie de la figure 1, vu de l'extérieur et de dessus, et muni d'un insert ;
  • les figures 3 et 4 sont des vues en perspective de l'ensemble d'articulation de la figure 2, vu de l'intérieur respectivement de dessous et de dessus;
  • la figure 5 est une vue de la partie du cadre de l'ensemble d'articulation, et d'un insert, le tampon étant omis ;
  • la figure 6 est une vue identique à celle de la figure 5, l'écrou étant omis ;
  • la figure 7 est une vue identique à celle de la figure 6, l'insert étant omis ;
  • la figure 8 est une vue identique à celle de la figure 7, la vis étant omise ;
  • la figure 9 est une vue en perspective du côté intérieur d'une partie du tampon ;
  • la figure 10 est une vue en perspective de l'insert ;
  • les figures 11 à 15 sont des vues de côté et en coupe de l'ensemble d'articulation dans des configurations différentes, entre la position fermée et ouverte.
The invention will be better understood in the light of the description which follows, given solely by way of example and with reference to the appended drawings, in which:
  • the figure 1 is a plan view of a road device according to the invention, the device being closed;
  • the figure 2 is a perspective view of a joint assembly of the roadway device of the figure 1 , seen from the outside and from above, and provided with an insert;
  • the figures 3 and 4 are perspective views of the articulation set of the figure 2 seen from the inside respectively from below and from above;
  • the figure 5 is a view of the frame portion of the hinge assembly, and an insert, the pad being omitted;
  • the figure 6 is a view identical to that of the figure 5 the nut being omitted;
  • the figure 7 is a view identical to that of the figure 6 the insert being omitted;
  • the figure 8 is a view identical to that of the figure 7 the screw being omitted;
  • the figure 9 is a perspective view of the inner side of a portion of the pad;
  • the figure 10 is a perspective view of the insert;
  • the Figures 11 to 15 are side and sectional views of the hinge assembly in different configurations, between the closed and open position.

Sur la figure 1 est représenté un dispositif de voirie, tel qu'un regard d'accès, désigné par la référence générale 2. Le dispositif de voirie 2 est représenté selon une vue de plan de dessus. Le dispositif de voirie 2 comporte un cadre 4 de forme polygonale, notamment carrée ou rectangulaire, et au moins un tampon, en l'occurrence deux tampons 6.On the figure 1 is shown a road device, such as an access view, designated by the general reference 2. The road device 2 is shown in a top plan view. The road device 2 comprises a frame 4 of polygonal shape, in particular square or rectangular, and at least one buffer, in this case two buffers 6.

Le cadre 4 délimite une ouverture d'accès 10, par exemple à des installations de télécommunications souterraines. Le cadre 4 définit un côté extérieur E et un côté intérieur I.The frame 4 defines an access opening 10, for example to underground telecommunications facilities. The frame 4 defines an outer side E and an inner side I.

Le cadre 4 définit un plan de cadre C-C parallèle au plan de la figure 1, dans lequel s'étend l'ouverture 10 (Figure 2). Le cadre 4 comporte une base 12 s'étendant parallèlement au plan de cadre C-C et une paroi 14 s'étendant sensiblement perpendiculairement par rapport au plan de cadre C-C. La paroi 14 délimite ainsi une surface sensiblement polygonale et ayant en l'occurrence une section carrée.Frame 4 defines a DC frame plan parallel to the plane of the figure 1 in which the opening 10 ( Figure 2 ). The frame 4 comprises a base 12 extending parallel to the frame plane CC and a wall 14 extending substantially perpendicular to the frame plane CC. The wall 14 thus delimits a substantially polygonal surface and having in this case a square section.

Le cadre définit un axe central X-X, s'étendant perpendiculairement au plan de cadre C-C. Les expressions « radialement » et « circonférentiellement » se réfèrent par la suite à l'axe central X-X.The frame defines a central axis X-X, extending perpendicularly to the C-C frame plane. The expressions "radially" and "circumferentially" refer later to the central axis X-X.

Le tampon 6 comporte un voile de couverture 20 adapté pour couvrir au moins partiellement l'ouverture 10 et s'étendant selon un plan de couverture P-P. Le voile de couverture 20 comporte une surface de couverture extérieure 22 et une surface de couverture intérieure 24.The pad 6 comprises a covering mat 20 adapted to at least partially cover the opening 10 and extending in a cover plane P-P. The covering veil 20 has an outer covering surface 22 and an inner covering surface 24.

Le regard d'accès 2 comporte en outre un insert 30, une vis 32 et un écrou 34 (c.f. figure 4).The access door 2 further comprises an insert 30, a screw 32 and a nut 34 (cf. figure 4 ).

Le regard d'accès 2 comporte au moins une charnière 36 adaptée pour permettre un déplacement angulaire du tampon 6 par rapport au cadre 4 entre une position ouverte et une position fermée.The access door 2 comprises at least one hinge 36 adapted to allow an angular displacement of the buffer 6 relative to the frame 4 between an open position and a closed position.

La position fermée est montrée sur les figures 1 à 4 et 11. Dans la position fermée, le tampon 6 recouvre au moins partiellement l'ouverture 10, et le plan P-P du voile de couverture 20 s'étend parallèlement au plan de cadre C-C. Dans la position ouverte, le plan de couverture P-P du voile de couverture 20 s'étend sensiblement perpendiculairement par rapport au plan de cadre C-C. Dans la position ouverte, le tampon est mobile entre deux positions ouvertes, à savoir une position ouverte libérée (cf. Figure 14) et une position ouverte bloquée. Dans la position ouverte libérée, le tampon 6 est mobile entre cette position et la position fermée. Dans la position ouverte bloquée, le tampon 6 est empêché de basculer vers sa position fermée. Egalement dans cette position ouverte bloquée, le tampon peut basculer dans une position ouverte extrême (cf. Figure 15), dans laquelle le voile de couverture 20 est déplacé de plus de 90° par rapport à sa position fermée, et est par exemple basculé de 110°.The closed position is shown on the Figures 1 to 4 and 11 . In the closed position, the buffer 6 at least partially covers the opening 10, and the plane PP of the covering web 20 extends parallel to the frame plane CC. In the open position, the cover plane PP of the covering web 20 extends substantially perpendicular to the frame plane CC. In the open position, the buffer is movable between two open positions, namely an unlocked open position (cf. Figure 14 ) and an open open position. In the released open position, the buffer 6 is movable between this position and the closed position. In the locked open position, the pad 6 is prevented from tilting to its closed position. Also in this blocked open position, the buffer can switch to an extreme open position (cf. Figure 15 ), in which the cover veil 20 is moved more than 90 ° from its closed position, and is for example tilted 110 °.

En se référant aux Figures 2 à 4, la charnière 36 comprend une première came de cadre 38C, ainsi qu'une première contre-came de tampon 38T. La première came de cadre 38C a une surface de came 40 qui est un cylindre partiel à section en arc de cercle. Cette surface de came 40 a une forme concave et se joint de manière continue à une surface intérieure de la paroi 14. La première came de cadre 38C est disposée entièrement à l'intérieur du volume délimité par la paroi 14, et fait saillie de cette paroi 14 avec une composante dirigée radialement vers l'axe X-X.Referring to Figures 2 to 4 the hinge 36 comprises a first frame cam 38C, as well as a first buffer cam 38T. The first frame cam 38C has a cam surface 40 which is a partial cylinder with an arcuate section. This cam surface 40 has a concave shape and joins continuously to an inner surface of the wall 14. The first frame cam 38C is disposed entirely within the volume defined by the wall 14, and protrudes therefrom. wall 14 with a component directed radially towards the axis XX.

La surface de came 40 conduit à une faible usure de la charnière lors de l'utilisation, et facilite l'accostage de la contre-came de tampon 38T lors du début de la fermeture.The cam surface 40 leads to low wear of the hinge during use, and facilitates docking of the buffer cam follower 38T at the beginning of the closure.

La première contre-came de tampon 38T est disposée adjacent au voile de couverture 20 et forme un bord du tampon 6. La première contre-came de tampon 38T a une surface de contre-came 42 qui est un cylindre partiel à profil en arc, convexe. Cette surface de contre-came 42 forme par exemple un secteur angulaire de 5° à 15° environ. La première contre-came de tampon 38T se joint d'une manière continue à la surface extérieure 22 du voile de couverture 20.The first buffer cam follower 38T is disposed adjacent to the cover web 20 and forms an edge of the pad 6. The first buffer cam follower 38T has a camming surface 42 which is an arcuate partial cylinder, convex. This counter-cam surface 42 forms, for example, an angular sector of approximately 5 ° to 15 °. The first buffer counter-cam 38T joins continuously to the outer surface 22 of the cover web 20.

La première came de cadre 38C et la première contre-came de tampon 38T sont adaptées pour coopérer sur une première plage angulaire α du voile de couverture 20. Cette première plage angulaire α s'étend de la position ouverte, éventuellement à un jeu près de l'ordre de 5°, vers la position fermée, et est comprise entre 60° et 90° environ. Dans toute cette première plage angulaire α, les deux surfaces de came 40 et de contre-came 42 s'appliquent l'une sur l'autre.The first frame cam 38C and the first buffer cam-against 38T are adapted to cooperate on a first angular range α of the cover web 20. This first angular range α extends from the open position, possibly to a game near the order of 5 °, to the closed position, and is between 60 ° and 90 °. Throughout this first angular range α, the two cam surfaces 40 and cam follower 42 apply to one another.

De préférence, comme représenté sur la figure 12, cette première plage angulaire α est délimitée d'une part par la position ouverte du tampon 6 et d'autre part par la position fermée du tampon 6 par rapport au cadre 4, formant ainsi un angle de 90° environ, éventuellement à un jeu près qui est de l'ordre de 5°.Preferably, as shown on the figure 12 , this first angular range α is delimited on the one hand by the open position of the buffer 6 and on the other hand by the closed position of the buffer 6 with respect to the frame 4, thus forming an angle of approximately 90 °, possibly with a clearance near which is of the order of 5 °.

Comme ceci est visible sur la Figure 1, lorsque le tampon 6 est dans sa position fermée, la première contre-came 38T est située entièrement à l'intérieur du volume délimité par la paroi 14.As this is visible on the Figure 1 when the buffer 6 is in its closed position, the first cam follower 38T is located entirely within the volume defined by the wall 14.

La charnière 36 comporte en outre une deuxième came de cadre 44C ainsi qu'une deuxième contre-came de tampon 44T. La deuxième came de cadre 44C est disposée sur la base 12 du cadre et s'étend à l'intérieur du volume défini par la paroi 14. Les deuxièmes came de cadre 44C et contre-came de tampon 44T sont adaptées pour coopérer exclusivement sur une deuxième plage angulaire β du tampon 6 par rapport au cadre 4 qui correspond à des positions du voile de couverture 20 situées entre les positions ouverte et fermée. Plus précisément, la deuxième plage angulaire β est délimitée d'une part par la position fermée du voile 20 et une première position intermédiaire inclinée (voir figure 12). Cette première position intermédiaire correspond à une inclinaison du voile 20 de préférence comprise entre 40° et 50° par rapport à la position fermée, et en particulier à une inclinaison de 45° telle que représentée sur la Figure 12. La plage angulaire β a ainsi une étendue comprise entre 40° et 50° à partir de la position fermée.The hinge 36 further includes a second frame cam 44C and a second buffer cam 44T. The second frame cam 44C is disposed on the base 12 of the frame and extends inside the volume defined by the wall 14. The second frame cam 44C and buffer cam follower 44T are adapted to cooperate exclusively on a second angular range β of the buffer 6 relative to the frame 4 which corresponds to cover 20 positions between the open and closed positions. More precisely, the second angular range β is delimited on the one hand by the closed position of the web 20 and a first inclined intermediate position (see FIG. figure 12 ). This first intermediate position corresponds to an inclination of the web 20 preferably between 40 ° and 50 ° with respect to the closed position, and in particular at an inclination of 45 ° as shown in FIG. Figure 12 . The angular range β thus has a range of between 40 ° and 50 ° from the closed position.

La plage angulaire β et la plage angulaire α se recouvrent sur au moins 10°.The angular range β and the angular range α overlap on at least 10 °.

Le tampon 6 est muni d'une saillie 46 s'étendant perpendiculairement au plan de voile P-P. La deuxième contre-came de tampon 44T a une surface de contre-came qui est formée par un coin de cette saillie 46.The pad 6 is provided with a projection 46 extending perpendicularly to the sail plane P-P. The second buffer counter-cam 44T has a counter-cam surface which is formed by a corner of this projection 46.

La deuxième came de cadre 44C comporte une première surface partielle de came 48, ainsi qu'une deuxième surface partielle de came 49. La première surface partielle de came 48 est sensiblement plane et s'étend parallèlement au plan de cadre C-C. La deuxième surface de came partielle 49 est également plane et inclinée par rapport à la première surface partielle de came 48. La première surface partielle de came 48 coopère avec la deuxième contre-came de tampon 44T exclusivement sur une première plage angulaire partielle β1 s'étendant de la position fermée à une deuxième position intermédiaire, qui est différente de la première position intermédiaire. La première plage angulaire partielle β1 correspond à un angle entre le plan P-P et le plan C-C compris entre 0° et 15° environ. La deuxième surface partielle de came 49 coopère avec la deuxième contre-came de tampon 44T exclusivement sur une deuxième plage angulaire partielle β2 distincte de la première plage angulaire partielle β1, les plages angulaires partielles β1 et β2 prises ensemble constituant la deuxième plage angulaire β. Cette plage angulaire partielle β2 est donc comprise entre 15° et 40° à 50°, et plus particulièrement entre 15° et 45° comme représenté sur la figure 12.The second frame cam 44C has a first cam surface 48 and a second cam surface 49. The first cam surface 48 is substantially planar and extends parallel to the frame plane CC. The second partial cam surface 49 is also flat and inclined with respect to the first cam surface 48. The first cam surface 48 cooperates with the second buffer cam 44T exclusively on a first partial angular range β1. extending from the closed position to a second intermediate position, which is different from the first intermediate position. The first partial angular range β1 corresponds to an angle between the plane PP and the plane CC between 0 ° and 15 ° approximately. The second cam part surface 49 cooperates with the second buffer counter-cam 44T exclusively on a second partial angular range β2 distinct from the first partial angular range β1, the partial angular ranges β1 and β2 taken together constituting the second angular range β. This partial angular range β2 is therefore between 15 ° and 40 ° at 50 °, and more particularly between 15 ° and 45 ° as shown in FIG. figure 12 .

Ainsi, entre la position fermée (Figure 11) et la deuxième position intermédiaire c'est-à-dire sur la première plage angulaire partielle β1, simultanément, d'une part la première surface partielle de came 48 coopère avec la surface de contre-came de la deuxième contre-came de tampon 44T, et d'autre part la première came de cadre 38C coopère avec la surface de contre-came 42 de la première contre-came de tampon 38T. Entre la deuxième position intermédiaire et la première position intermédiaire (Figure 12), c'est-à-dire sur la deuxième plage angulaire partielle β2, la surface de contre-came de la deuxième contre-came de tampon 44T s'applique sur la deuxième surface partielle de came 49 et, simultanément, la surface de contre-came 42 de la première contre-came de tampon 38T s'applique sur la surface de came 40 de la première came de cadre 38C. L'inclinaison de la deuxième surface partielle de came 49 facilite l'accostage de cette surface par la deuxième contre-came de tampon 44T lors de la fermeture du tampon.Thus, between the closed position ( Figure 11 ) and the second intermediate position, that is to say on the first partial angular range β1, simultaneously, on the one hand the first camming surface 48 cooperates with the counter-cam surface of the second buffer counter-cam 44T, and on the other hand the first frame cam 38C cooperates with the counter-cam surface 42 of the first buffer cam-against 38T. Between the second intermediate position and the first intermediate position ( Figure 12 ), i.e. on the second partial angular range β2, the counter-cam surface of the second buffer counter cam 44T applies to the second cam portion surface 49 and, simultaneously, the cam follower 42 of the first buffer cam follower 38T is applied to the cam surface 40 of the first frame cam 38C. The inclination of the second camming surface 49 facilitates the docking of this surface by the second cam follower 44T when closing the buffer.

La charnière 36 comporte en outre une troisième came de cadre 144C et une troisième contre-came de tampon 144T. Ces troisièmes came de cadre 144C et contre-came de tampon 144T coopèrent exclusivement sur une troisième plage angulaire y du tampon 6 par rapport au cadre 4. Cette troisième plage angulaire y est située entièrement en dehors de la deuxième plage angulaire β. Elle est délimitée, d'une part par la première position intermédiaire inclinée qui limite la deuxième plage angulaire β et d'autre part par la position ouverte de tampon, éventuellement à un jeu près de l'ordre de quelques degrés. La plage angulaire y est par conséquent comprise entre 40° et 50° environ, et s'étend plus particulièrement sur 45° comme représenté sur la Figure 12. Ainsi, la plage angulaire y et la plage angulaire α se recouvrent sur au moins 40°. Dans l'exemple décrit, les plages angulaires α et y se recouvrent sur 45° environ.The hinge 36 further includes a third frame cam 144C and a third buffer cam 144T. These third frame cam 144C 144A and buffer cam-cam cooperate exclusively on a third angular range y of the pad 6 relative to the frame 4. This third angular range is located entirely outside the second angular range β. It is delimited, on the one hand by the first inclined intermediate position which limits the second angular range β and on the other hand by the open buffer position, possibly to a game close to a few degrees. The angular range is therefore between 40 ° and 50 °, and more particularly extends over 45 ° as shown in FIG. Figure 12 . Thus, the angular range y and the angular range α overlap over at least 40 °. In the example described, the angular ranges α and y overlap for approximately 45 °.

En l'occurrence, la troisième came de cadre 144C est formée par une surface de came 146 disposé sur la saillie 62 et la troisième contre-came de tampon 144T est formée par une surface de contre-came 148 formée par la surface inférieure du tampon, et particulièrement par l'évidement 64 (voir ci-après).In this case, the third frame cam 144C is formed by a cam surface 146 disposed on the projection 62 and the third cam follower 144T is formed by a camming surface 148 formed by the bottom surface of the pad , and particularly by the recess 64 (see below).

Selon l'invention, le tampon et le cadre coopèrent simultanément avec deux paires de came et contre-came sur une grande plage angulaire, qui est de préférence au moins 60° et qui atteint en l'occurrence 90°, éventuellement au jeu précité près.According to the invention, the buffer and the frame cooperate simultaneously with two pairs of cams and cam followers over a wide angular range, which is preferably at least 60 ° and which in this case reaches 90 °, possibly to the aforementioned clearance.

Le regard 2 comporte en outre des moyens de support 50 adaptés pour supporter le tampon 6 par rapport au cadre 4 dans la position fermée du tampon et selon une direction perpendiculaire au plan de cadre C-C. Avantageusement, les moyens de support 50 comprennent la première surface partielle de came 48 et l'extrémité libre de la saillie 46. L'extrémité libre de la saillie 46 s'applique sur la première surface de came partielle 48 à l'état fermé du tampon 6. Le contact entre l'extrémité libre de la saillie 46 et la première surface de came partielle 48 est un contact surfacique. De préférence, au moins du côté de la charnière, les moyens de support 50 sont constitués par la première surface partielle de came 48 et par l'extrémité libre de la saillie 46. L'appui entre le tampon et le cadre du côté opposé de la charnière est effectué par une saillie analogue à la saillie 46 sous le tampon qui prend appui sur une surface horizontale analogue à la surface 48 du cadre.The view 2 further comprises support means 50 adapted to support the buffer 6 relative to the frame 4 in the closed position of the buffer and in a direction perpendicular to the C-C frame plane. Advantageously, the support means 50 comprise the first cam surface 48 and the free end of the projection 46. The free end of the projection 46 is applied to the first partial cam surface 48 in the closed state of the cam. buffer 6. The contact between the free end of the projection 46 and the first partial cam surface 48 is a surface contact. Preferably, at least on the side of the hinge, the support means 50 consist of the first cam surface 48 and the free end of the projection 46. The support between the pad and the frame on the opposite side of the hinge is made by a protrusion similar to the projection 46 under the buffer which bears on a horizontal surface similar to the surface 48 of the frame.

A cet effet, la saillie 46 comporte une surface d'extrémité 52 plane parallèle au plan de couverture P-P, garantissant ainsi la stabilité d'appui du tampon sur le cadre.For this purpose, the projection 46 has a flat end surface 52 parallel to the plane of coverage P-P, thus ensuring the bearing stability of the buffer on the frame.

Le dispositif de voirie 2 comporte en outre des moyens de retenue 60 adaptés pour bloquer le tampon 6 par rapport au cadre 4 et en translation selon le plan de cadre C-C lorsque le tampon 6 est en position fermée (voir Figures 3 et 11).The road device 2 further comprises retaining means 60 adapted to block the buffer 6 relative to the frame 4 and in translation along the frame plane CC when the buffer 6 is in the closed position (see Figures 3 and 11 ).

Ces moyens de retenue 60 comprennent la saillie 62 solidaire du cadre 4, ainsi qu'un évidement 64 ménagé dans la surface de couverture intérieure 24 du tampon 6. Dans la position fermée du tampon 6, la saillie 62 s'engage dans l'évidement 64 et limite le déplacement du tampon 6 selon le plan P-P. En particulier, ces moyens de retenue 60 limitent le déplacement du tampon 6 par rapport au cadre dans un sens de translation tendant à éloigner le tampon de la paroi 14 associée à la charnière et s'opposent en particulier à un contact du tampon avec un autre tampon ou avec le côté du cadre 4 situé à l'opposé de la charnière 36. Ces moyens de retenue 60 sont particulièrement importants dans le cas où le tampon 6 est lié au cadre 4 au moyen d'un vérin sollicitant le tampon 6 dans un sens dirigé à l'écart de la paroi 14 qui est associée à la charnière 36.These retaining means 60 comprise the projection 62 integral with the frame 4, as well as a recess 64 formed in the inner covering surface 24 of the pad 6. In the closed position of the pad 6, the projection 62 engages in the recess 64 and limits the displacement of the buffer 6 according to the plane PP. In particular, these retaining means 60 limit the displacement of the pad 6 with respect to the frame in a direction of translation tending to move the pad away from the wall 14 associated with the hinge and in particular oppose a contact of the pad with another buffer or with the side of the frame 4 located opposite the hinge 36. These retaining means 60 are particularly important in the case where the buffer 6 is connected to the frame 4 by means of a cylinder requesting the buffer 6 in a direction directed away from the wall 14 which is associated with the hinge 36.

Le regard 2 comporte en outre des moyens de blocage 70 adaptés pour définir la position d'ouverture du tampon 6 par rapport au cadre 4. Ces moyens de blocage 70 sont adaptés pour permettre un déplacement du tampon 6 par rapport au cadre 4 entre la position ouverte libérée (Figure 14) dans laquelle le tampon 6 peut être déplacé de sa position ouverte vers sa position fermée, et une position ouverte bloquée dans laquelle un basculement du tampon 6 vers la position fermée est empêché.The view 2 further comprises blocking means 70 adapted to define the opening position of the buffer 6 relative to the frame 4. These locking means 70 are adapted to allow movement of the buffer 6 relative to the frame 4 between the position released open ( Figure 14 ) in which the pad 6 can be moved from its open position to its closed position, and a locked open position in which a tilting of the pad 6 to the closed position is prevented.

A cet effet, les moyens de blocage 70 comprennent une encoche 72 s'étendant entre la première came de cadre 38C et la saillie 62 (voir figures 11 et 12). L'encoche 72 délimite une surface de butée 74 adjacente à la saillie 62 et une surface de butée 76 adjacente à la première came de cadre 38C. Les moyens de blocage 70 comportent une surface de butée 78 correspondante (voir figure 12) disposée sur le tampon 6. Lorsque le tampon 6 se trouve dans l'encoche 72 et lorsqu'il est déplacé vers sa position fermée, la surface de butée 78 s'applique contre la surface de butée 74, empêchant le basculement du tampon.For this purpose, the locking means 70 comprise a notch 72 extending between the first frame cam 38C and the projection 62 (see FIG. Figures 11 and 12 ). The notch 72 defines an abutment surface 74 adjacent to the projection 62 and an abutment surface 76 adjacent to the first frame cam 38C. The blocking means 70 comprise a corresponding abutment surface 78 (see FIG. figure 12 ) when the pad 6 is in the notch 72 and when moved to its closed position, the abutment surface 78 is pressed against the abutment surface 74, preventing the pad from tilting.

La surface extérieure 22 du tampon 6 est en outre munie d'un creux 79 adapté pour recevoir au moins partiellement la surface de butée 76 et permettre ainsi au tampon 6 d'atteindre la position ouverte extrême dans laquelle tampon réalise un angle d'environ 110°par rapport à sa position fermée (Figure 15).The outer surface 22 of the pad 6 is further provided with a recess 79 adapted to at least partially receive the abutment surface 76 and thereby allow the pad 6 to reach the extreme open position in which pad achieves an angle of about 110 ° with respect to its closed position ( Figure 15 ).

Avantageusement, le cadre 4 est dépourvu de contre-dépouille dans la direction s'étendant perpendiculairement au plan de cadre C-C. De même, le tampon 6 est dépourvu de contre-dépouille dans une direction s'étendant perpendiculairement au plan de couverture P-P.Advantageously, the frame 4 is free of undercut in the direction extending perpendicularly to the C-C frame plane. Similarly, the buffer 6 is free of undercut in a direction extending perpendicular to the plane of coverage P-P.

Le cadre 4 est fabriqué en fonte. Avantageusement, au moins une came de cadre 38C, 44C, 144C et de préférence toutes les cames de cadre, est ou sont fabriquées d'une seule pièce, et sont notamment venues de matière avec le cadre 4.Frame 4 is made of cast iron. Advantageously, at least one frame cam 38C, 44C, 144C and preferably all the frame cams, is or are manufactured in one piece, and are in particular integral with the frame 4.

Le tampon 6 est fabriqué en fonte. Avantageusement, au moins une contre-came 38T, 44T, 144T et de préférence toutes les contre-cames, est ou sont fabriquées d'une seule pièce, et sont notamment venues de matière avec le tampon 6.The pad 6 is made of cast iron. Advantageously, at least one cam follower 38T, 44T, 144T and preferably all the cams, is or are manufactured in one piece, and are in particular integral with the buffer 6.

Le tampon 6 du dispositif de voirie décrit ci-dessus peut être détaché du cadre 4 soit à partir de sa position fermée, par translation du tampon suivant une direction perpendiculaire à son plan P-P, soit à partir de sa position ouverte, par translation du tampon suivant une direction sensiblement parallèle à son plan P-P. Le montage du tampon 6 sur le cadre 4 peut donc lui aussi s'effectuer avec le tampon 6 en position horizontale ou verticale.The buffer 6 of the road device described above can be detached from the frame 4 or from its closed position, by translation of the buffer in a direction perpendicular to its plane PP, or from its open position, by translation of the buffer in a direction substantially parallel to its plane PP. The mounting of the buffer 6 on the frame 4 can also be performed with the buffer 6 in horizontal or vertical position.

Le cadre 4 et le tampon 6 sont avantageusement utilisables en liaison avec un vérin d'aide au soulèvement non représenté qui est adapté pour pousser le tampon 6 vers sa position ouverte. Afin de pouvoir fixer ce vérin au cadre 4, l'insert 30 est prévu. L'insert 30 est fixé au cadre 4 à côté de la saillie 62 et de la première came de cadre 38C (cf. Figures 3 à 6). L'insert 30 comporte une saillie 80 s'étendant parallèlement à la saillie 62. La saillie 80 comporte un pontet 82 s'appliquant contre la saillie 62 à l'état monté. Ce pontet 82 forme une surface de retenue du tampon 6 par rapport au cadre lors des phases d'ouverture et de fermeture du tampon, lorsque le vérin a tendance à pousser le tampon vers le côté du cadre situé à l'opposé de la charnière. A cet effet, le tampon comporte un appendice 84 (voir figure 9) venant s'appliquer contre le pontet 82 afin de limiter le déplacement du tampon 6 vers le côté du cadre 4 situé à l'opposé de la charnière 36. De plus, étant donné que l'appendice 84 vient se placer entre les saillies 62 et 80 lors des mouvements d'ouverture et de fermeture du tampon 6, il assure aussi un guidage du tampon 6 lors de sa rotation, limitant notamment les déplacements du tampon 6 suivant une direction parallèle à la paroi 14 associée à la charnière 36. Par ailleurs, pour limiter également ce type de déplacement du tampon 6 lorsque celui-ci est en position fermée, position dans laquelle l'appendice 84 n'est pas situé entre les saillies 62 et 80, il est avantageux de munir le tampon 6 d'un appendice supplémentaire 85. Cet appendice supplémentaire 85 est décalé par rapport à l'appendice 84 et est adapté, en position fermée, pour venir en butée contre la face de la saillie 62 située à l'opposé de l'insert 30.The frame 4 and the buffer 6 are advantageously usable in connection with a not shown lifting aid cylinder which is adapted to push the buffer 6 to its open position. In order to be able to fix this jack to the frame 4, the insert 30 is provided. The insert 30 is fixed to the frame 4 next to the projection 62 and the first frame cam 38C (cf. Figures 3 to 6 ). The insert 30 has a projection 80 extending parallel to the projection 62. The projection 80 has a bridge 82 which bears against the projection 62 in the assembled state. This bridge 82 forms a buffer retaining surface 6 relative to the frame during the opening and closing phases of the buffer, when the cylinder tends to push the buffer towards the side of the frame located opposite the hinge. For this purpose, the buffer has an appendage 84 (see figure 9 ) coming against the bridge 82 to limit the displacement of the buffer 6 to the side of the frame 4 located opposite the hinge 36. Moreover, since the appendix 84 is placed between the projections 62 and 80 during the opening and closing movements of the buffer 6, it also ensures a guiding of the buffer 6 during its rotation, in particular limiting the displacements of the buffer 6 in a direction parallel to the wall 14 associated with the hinge 36. elsewhere, to also limit this type of displacement of the buffer 6 when it is in the closed position, in which position the appendage 84 is not located between the projections 62 and 80, it is advantageous to provide the buffer 6 with an additional appendage 85. This additional appendix 85 is offset from the appendix 84 and is adapted, in the closed position, to abut against the face of the projection 62 located opposite the insert 30.

L'insert 30 est en outre muni d'un orifice de fixation 86 servant à la fixation du vérin.The insert 30 is further provided with a fixing orifice 86 for fixing the jack.

L'insert 30 dispose en outre d'une surface de retenue 90 (voir figure 10) adaptée pour retenir l'insert 30 par rapport au cadre 4 dans une direction perpendiculaire par rapport au plan de cadre C-C et dirigée vers l'extérieur. La surface de retenue 90 coopère avec une surface de retenue 92 solidaire du cadre 4. L'insert 30 comporte en outre une surface de retenue 94 adaptée pour retenir l'insert 30 à l'encontre d'un déplacement vers le centre du cadre et coopérant avec une surface de retenue complémentaire 96 solidaire du cadre (voir figure 8).The insert 30 also has a retaining surface 90 (see FIG. figure 10 ) adapted to retain the insert 30 relative to the frame 4 in a direction perpendicular to the DC frame plane and directed outwards. The retaining surface 90 cooperates with a retaining surface 92 secured to the frame 4. The insert 30 further comprises a retaining surface 94 adapted to retain the insert 30 against a displacement towards the center of the frame and cooperating with a complementary retaining surface 96 integral with the frame (see figure 8 ).

Des surfaces de retenue supplémentaires et complémentaires 98, 100 et 102, 104 sont disposées sur l'insert 30 et le cadre 4 et servent à retenir l'insert 30 par rapport au cadre 4 dans le sens s'étendant le long de la paroi 14 et contre la paroi 14. L'insert 30 peut être mis en place exclusivement selon un seul sens de mise en place M rectiligne s'étendant parallèlement au plan de cadre C-C et le long de la paroi 14 (cf. Figure 6).Additional and complementary retaining surfaces 98, 100 and 102, 104 are disposed on the insert 30 and the frame 4 and serve to retain the insert 30 relative to the frame 4 in the direction extending along the wall 14 and against the wall 14. The insert 30 can be implemented exclusively in a single direction of placement M rectilinear extending parallel to the DC frame plane and along the wall 14 (cf. Figure 6 ).

Le cadre comporte un logement de vis 110 recevant la vis 32 (Figures 7 et 8). Lorsque la vis 32 se trouve dans le logement de vis 110 et l'écrou 34 est en place, l'insert 30 est retenu par la vis 32, l'écrou 34 et le logement 110 à l'encontre d'une libération du cadre 4 dans un sens opposé au sens M.The frame comprises a screw housing 110 receiving the screw 32 ( Figures 7 and 8 ). When the screw 32 is in the screw housing 110 and the nut 34 is in place, the insert 30 is retained by the screw 32, the nut 34 and the housing 110 against a release of the frame 4 in a direction opposite to the meaning M.

En variante non représentée, l'insert 30 est fait d'une seule pièce avec la saillie 62, l'ensemble étant alors venu de matière avec le cadre ou rapporté sur le cadre par tout moyen de fixation approprié.In variant not shown, the insert 30 is made in one piece with the projection 62, the assembly then being integral with the frame or attached to the frame by any suitable fastening means.

Selon une autre variante non représentée, la troisième came de cadre et la troisième contre-came de tampon sont un axe et un évidement à section d'arc de cercle qui s'appliquent l'une sur l'autre sur la troisième plage angulaire y.According to another variant not shown, the third frame cam and the third buffer cam are an axis and a recess arcuate section which are applied to one another on the third angular range y .

D'autres caractéristiques générales de l'invention sont :

  • la première plage angulaire α est délimitée par la position ouverte et s'étend vers la position fermée.
  • la première contre-came 38T a une surface de cylindre partiel à profil en arc, notamment s'étendant sur un arc de cercle de 5° à 15°.
  • la première contre-came 38T est disposée adjacente au voile de couverture 20.
Other general features of the invention are:
  • the first angular range α is delimited by the open position and extends to the closed position.
  • the first cam follower 38T has an arcuate partial cylinder surface, in particular extending over a circular arc of 5 ° to 15 °.
  • the first cam follower 38T is disposed adjacent to the covering web 20.

Claims (19)

  1. A hinge assembly, of the type comprising:
    - a lid (6) with a covering web (20) delimiting a covering surface (22, 24), said covering web being intended to cover an opening and extending along a covering plane (P-P);
    - a hinge (36) adapted for enabling an angular movement of the lid (6) between an open position and a closed position,
    the hinge (36) including a first cam (38C) and a first counter-cam (38T), the first cam (38C) and the first counter-cam (38T) cooperating over a first angular range (α) situated between the open and closed position,
    the hinge (36) comprising an additional cam (44C; 144C) and an additional counter-cam (44T, 144T) cooperating over an additional angular range (β, γ) situated between the open and closed positions, the additional cam (44C; 144C) and the additional counter-cam (44T, 144T) having profiles different from the first cam and first counter-cam, characterized in that
    the first angular range (α) and the additional angular range (β ; γ) overlap over an angular overlap range that amounts to at least 60° and over the entire range of which both the first cam and counter-cam and the additional cam and counter-cam cooperate simultaneously.
  2. The hinge assembly according to claim 1, characterized in that the angular overlap range amounts to at least one of the following values: 65°, 70°, 80, 85°.
  3. The hinge assembly according to claim 1 or 2, characterized in that the angular overlap range and the first angular range (α) coincide.
  4. The hinge assembly according to any one of claim 1 to 3, characterized in that the first cam (38C) has a partial cylinder-shaped cam surface (40) with an arc-shaped section, in particular a circular arc.
  5. The hinge assembly according to any one of the preceding claims, characterized in that the first counter-cam (38T) is, when the lid (6) is in its closed position, situated, in particular completely, inside the projection of the covering surface.
  6. The hinge assembly according to one of the preceding claims, characterized in that the additional cam and counter-cam include a second cam (44C) and a second counter-cam (44T), in that the additional angular range comprises a second angular range (β), the second cam (44C) and the second counter-cam (44T) cooperating over this second angular range (β) situated between the open and closed positions.
  7. The hinge assembly according to claim 6, characterized in that the second angular range (β) is delimited by the closed position.
  8. The hinge assembly according to claim 6 or 7, characterized in that the second counter-cam (44T) is situated at one end of a first projection (46) extending perpendicular to the web plane (P-P) and the second cam (44C) has a first partial cam surface (48).
  9. The hinge assembly according to claim 8, characterized in that the second cam (44C) has a second partial cam surface (49) that is inclined relative to the first partial cam surface (48).
  10. The hinge assembly according to any one of claims 6 to 9, characterized in that the additional cam and counter-cam have a third cam (144C) and a third counter-cam (144T) cooperating over a third angular range (γ) situated completely outside the second angular range (β).
  11. The hinge assembly according to claim 10, characterized in that the third cam and the third counter-cam are an axis and a recess with a circular arc-shaped section.
  12. The hinge assembly according to any one of the preceding claims, characterized in that the assembly includes support means (50) adapted to support the lid (6) relative to a frame (4) in the closed position in a direction perpendicular to the covering plane (P-P), in particular this support means comprising the end of the first projection (46) and the first partial cam surface (48).
  13. The hinge assembly according to any one of the preceding claims, characterized in that the assembly has a retaining means (60) adapted to translationally lock the lid relative to the first cam (38C) along the cover plane (P-P) when the lid (6) is in the closed position, this retaining means comprising a second projection (62) fixed relative to the first cam (38C) and which cooperates with a recess (64) formed in the lid when the latter is in the closed position.
  14. The hinge assembly according to any one of the preceding claims, characterized in that the assembly comprises a locking means (70) defining a locked opening position in which the lid (6) is prevented from tilting towards the closed position and allowing the lid (6) to move between this locked opening position and an unlocked open position of the lid (6).
  15. The hinge assembly according to claim 14, characterized in that the locking means (70) comprises a stop surface (76) adjacent to the first cam (38C) and a stop surface (74) situated opposite the first cam (38C).
  16. The hinge assembly according to any one of the preceding claims, characterized in that at least one of the counter-cams (38T, 44T) is fastened to the lid, and in particular at least one counter-cam is integral with the lid.
  17. A road device of the type comprising:
    - a frame (4) delimiting an opening (10),
    characterized in that it includes an assembly according to any one of the preceding claims, in that the lid (6) is adapted to cover the opening (10) of the frame (4) and in that the or each cam is fastened to the frame (4).
  18. The road device according to claim 17, characterized in that the or each cam is made in a single piece with the frame.
  19. The road device according to claim 17, characterized in that the or each cam is a piece attached to the frame.
EP09805760.7A 2009-01-15 2009-12-18 Manhole with frame and hinged cover Active EP2376714B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0950214A FR2940986B1 (en) 2009-01-15 2009-01-15 JOINT ASSEMBLY AND CORRESPONDING ROAD DEVICE
PCT/FR2009/052630 WO2010081953A1 (en) 2009-01-15 2009-12-18 Hinge assembly and corresponding road device

Publications (2)

Publication Number Publication Date
EP2376714A1 EP2376714A1 (en) 2011-10-19
EP2376714B1 true EP2376714B1 (en) 2015-04-01

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EP09805760.7A Active EP2376714B1 (en) 2009-01-15 2009-12-18 Manhole with frame and hinged cover

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US (1) US9267261B2 (en)
EP (1) EP2376714B1 (en)
CN (1) CN102341545B (en)
ES (1) ES2541201T3 (en)
FR (1) FR2940986B1 (en)
RU (1) RU2504620C2 (en)
WO (1) WO2010081953A1 (en)

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Also Published As

Publication number Publication date
US9267261B2 (en) 2016-02-23
EP2376714A1 (en) 2011-10-19
RU2504620C2 (en) 2014-01-20
FR2940986A1 (en) 2010-07-16
US20120020728A1 (en) 2012-01-26
CN102341545B (en) 2013-11-13
RU2011134039A (en) 2013-02-20
WO2010081953A1 (en) 2010-07-22
CN102341545A (en) 2012-02-01
ES2541201T3 (en) 2015-07-16
FR2940986B1 (en) 2011-01-07

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