EP2078116B1 - Device for hinging a lid or cover to a frame, such as a manhole - Google Patents

Device for hinging a lid or cover to a frame, such as a manhole Download PDF

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Publication number
EP2078116B1
EP2078116B1 EP07858564A EP07858564A EP2078116B1 EP 2078116 B1 EP2078116 B1 EP 2078116B1 EP 07858564 A EP07858564 A EP 07858564A EP 07858564 A EP07858564 A EP 07858564A EP 2078116 B1 EP2078116 B1 EP 2078116B1
Authority
EP
European Patent Office
Prior art keywords
lid
frame
connecting rods
rod
connecting rod
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
EP07858564A
Other languages
German (de)
French (fr)
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EP2078116A2 (en
Inventor
Jean-Jacques Monneret
Philippe Dutilleul
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.)
Norinco SA
Original Assignee
Norinco SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Norinco SA filed Critical Norinco SA
Priority to PL07858564T priority Critical patent/PL2078116T3/en
Priority to SI200730906T priority patent/SI2078116T1/en
Publication of EP2078116A2 publication Critical patent/EP2078116A2/en
Application granted granted Critical
Publication of EP2078116B1 publication Critical patent/EP2078116B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
    • 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

Definitions

  • the present invention relates to a hinge device for a buffer or cover to a frame in the form of a quadrilateral, including a manhole.
  • Such a device allows the tilting of the buffer relative to the frame between a lowered position of closure in which the buffer is in thickness in the sides of the frame to apply at least partially on a rabbet of the frame and close the opening bordered by the sides of the frame, and a raised position of access to the opening of the frame.
  • the hinge devices that have been proposed until now to switch a buffer or cover from its closed position of the frame to its open position, and vice versa, are of an extremely complex structure and are not adapted to facilitate the maneuver operations of the buffer at its open or closed positions of the frame.
  • the document FR 2 710 040 discloses a device for hinging a hatch to a frame forming a frame comprising the features of the preamble of claim 1.
  • this hinge device comprises two pairs of rods, one shorter than the other, and hinged to fittings associated with the hatch on the one hand and hinged to fittings integral with the chassis on the other hand, so that each pair of rods is a deformable quadrilateral to tilt the hatch to its raised position or to its closed position of the frame.
  • This articulation device further comprises two sockets each retaining a coil spring and which are provided on the edge opposite to the hinges of the hatch. These springs are likely to be supported in the frame and to be compressed when the hatch is locked locked position in support on sleepers. After unlocking the lock, the springs of the hatch lift a few centimeters to release a lever arm to operate the hatch.
  • the hatch comprises a thin top plate bearing against a hollow seal seal attached to a recess of the frame frame when the trapdoor is in its closed position, and a thickly braced portion of dimensions much smaller than those chassis frame.
  • Such a hinge device does not relate to a trap of great thickness in a frame and which would pose a problem for such a kind of hatch to ensure its opening. Indeed, upon unlocking the lock, the coil springs pivot the hatch relative to the joints formed by the rods and such pivoting would be prevented if the hatch was to register in thickness in the sides of the frame.
  • the object of the invention is to provide a hinge device of an extremely simple structure and which also allows an operator to easily switch the buffer from its position of opening or closing the frame without significant effort and without risk of jamming of the buffer in the frame from the beginning of the lifting of the buffer.
  • the hinge device of the invention comprises the features as set forth in the characterizing part of claim 1.
  • each member exerts the thrust force at a location of the buffer located in the vicinity of the two axes of articulation to the buffer of the two links of the same pair.
  • Each pair of links comprises on the one hand a shorter link length whose end articulated to the side of the frame is located at a relatively short distance from the corresponding end of this side and the opposite end connected to the buffer is located near the corresponding bank of the buffer and on the other hand a longer rod whose end hinged to the side of the frame is located at a distance farther from the end of this side than that of the end of the shorter rod length and the opposite end articulated to the buffer is located at a distance from the buffer edge further than that of the hinge end of the rod shorter length.
  • each thrust member comprises a sliding guide rod, in a direction perpendicular to the longitudinal direction of the side of the frame, in a body secured to this side, the rod having an end head on which bears the buffer in its lowered closed position so as to drive the rod into the body against the biasing force of an elastic member, such as a helical compression spring.
  • an elastic member such as a helical compression spring
  • the device is provided with assistance means for opening or closing the buffer.
  • These assistance means comprise two lateral gas cylinders each connected articulated between the frame and the buffer and parallel to the plane web of the latter.
  • the two links of the same pair are connected articulated to the buffer via a rigid arm secured to the pad perpendicularly to the shore of this buffer and each member exerts the thrust force on the corresponding rigid arm of the buffer.
  • Each assistance cylinder at one of its ends connected hinged to the buffer arm at a distance farther from the edge of the buffer than that of the end of the rod of greater length to this bank.
  • Each assistance cylinder has its end connected hinged towards the end of the side of the frame opposite to that in the vicinity of which is articulated the end of the rod of shorter length.
  • Each assistance cylinder has its connected rod hinged to the side of the frame and its connected cylinder articulated to the buffer.
  • the longer link of each pair of links is hinged to the corresponding side of the frame at a lower level than that of the hinge end to that side of the shorter link rod associated.
  • the links and the assistance cylinders are articulated to the parallel sides of the frame by means of two plates removably attached to these two sides and two bars can be fixed at their ends transversely between the two plates in the vicinity of the ends of the latter. and the two plates can be detached from their respective sides of the frame so as to remove from this frame the assembly constituted by the buffer, the rods, the assistance cylinders, the plates and the two connecting bars one to one. other of the two decks.
  • the ratio of distances between the axes of articulation of the longest link to the shorter link is about 2.6.
  • the distance between the hinge pins of the larger link is about 350 mm and that between the hinge pins of the shorter link is about 135 mm.
  • the distance separating the axis of articulation from the shortest link to the corresponding bank of the buffer is approximately 20 mm, the distance separating the two axes of articulation of the two links of the same one from the other.
  • the buffer pair is approximately 80 mm and the distance between the hinge axis of the large link and the buffer rebate is approximately 70 mm, while the distance between the hinge pin and the hinge pin is approximately 70 mm. smaller link at this rabbet is about 36 mm.
  • the device of the invention is applied to a frame according to which its sides have a determined relief, for example, of approximately 9 ° angle, so that the inclined internal faces of the two opposite sides of the frame are parallel to each other. to one another and that inclined internal faces of the other two opposite sides of the frame parallel to the rods diverge from each other.
  • the pad is held by the links in its raised and inverted position at an angle of about 110 ° relative to the frame.
  • the device is provided with at least one gripping handle secured to the plane web of the pad opposite its hinge edge to the rods.
  • each small link is provided at its end hinged to the side of the frame of a shoe adapted to compress, during the tilting of the buffer to its open position, an elastically deformable member in a direction parallel to the longitudinal direction of the side of the frame so as to damp the tilting of the buffer.
  • the elastically deformable member is a helical compression spring axis parallel to the side of the frame and which is mounted coaxially around a rod between a head thereof and a body secured to the frame side, the rod slidable in the body when the head of the rod contacts a shoe cam portion of the small link to compress the spring.
  • the reference numeral 1 designates a manhole allowing access for example to a tunnel inspection chimney dug in the ground and comprising a buffer or cover 2 and a frame 3 to which the buffer 2 is articulated between a position lowered closure of the frame and a raised inclined opening position of this frame.
  • the look, the buffer 2 and the frame 3 are made of cast iron, is of generally rectangular shape.
  • the buffer 2 In the lowered position of closure of the frame 3, the buffer 2 is in thickness in the walls 4 constituting the sides of the frame 3 to be applied on a rabbet 5 of the frame 3 and thus close the opening bordered by the sides 4 of this frame.
  • the sides 4 of the frame 3 have their internal faces 4a inclined so as to have a draft for example of about 9 °.
  • two of the parallel sides 4a of the frame 3 called longitudinal sides have their internal faces bevelled so as to diverge from one another to the upper edge of the opening of the frame 3, while the other two sides 4 of this frame, called transverse sides, have their beveled inner faces 4a parallel to each other.
  • the external lateral faces 2a of the buffer 2 are bevelled at the same angle as the bevelled inner faces 4a of the sides 4 of the frame 3 so that the buffer 2 can be inscribed in thickness in the frame 3 with its veil plane 2b flush with the upper edge 4b of the walls 4 delimiting the opening of the frame 3 in the lowered position of closure of the buffer 2.
  • the frame may be of conventional design, that is to say that the internal faces of its sides are flat and perpendicular to the plane passing through the opening edge 4b of the frame 3.
  • the hinge device of the invention comprises two lateral pairs of inner links 6, 7 connecting the buffer 2 to the frame 3 being arranged symmetrically relative to the vertical median plane of the frame 3 and parallel to the two longitudinal sides 4 of the frame.
  • the two rods 6 and 7 of the same pair are arranged respectively in two planes parallel to the corresponding longitudinal side 4 of the frame 3 and comprise a rod of shorter length or small rod 6 and a rod of greater length or large rod 7.
  • the small link 6 of each pair has one of its ends articulated to the planar inner face of the corresponding side 4 of the frame 3 located below its bevelled face 4a about an axis of articulation 8 perpendicular to this side and located at a relatively short distance d1 from the corresponding end of this side.
  • the opposite end of the small link 6 is connected hinged to the buffer 2 by means of a rigid arm 9 fixed under the buffer 2 extending perpendicularly to the edge or edge 2c of the buffer 2 adjacent to the corresponding transverse side 4 of the frame 3, the arm 9 being parallel to the plane web 2b of the buffer 2.
  • the hinge axis 10 of the rod 6 extends perpendicularly to the arm 9, that is to say parallel to the bank 2c of the buffer 2, and is located near this shore.
  • the large link 7 has one of its ends connected hinged to the side 4 of the frame 3, which is connected to the link 6, about an axis of articulation 11 perpendicular to this side and located at a distance d2 from the end on this side, greater than the distance d1 separating the hinge axis 8 of the rod 6 of this same end.
  • the opposite end of the large link 7 is connected articulated to the arm 9 about an articulation axis 12 extending perpendicular to the arm 9 and located at a distance d3 relative to the axis of articulation 10 of the small rod 6, that is to say that the hinge axis 12 is further from the corresponding bank 2c of the buffer 2 that the hinge axis 10 of the small rod 6.
  • the hinge joint 12 the big link 7 at the side longitudinal corresponding 4 of the frame 3 is designed so that the rod 7 is located at a distance farthest from the inner face of this side as the small rod 6 which is very close to this inner face.
  • the small link 6 is articulated between the arm 9, the side 4 of the frame 2 and the large link 7 while the large link 7 is connected hinged to the opposite side of this arm.
  • the hinge 11 of the large link 7 to the corresponding side 4 of the frame 3 is located at a lower level, relative to the rabbet 5, that of the hinge 8 of the small link 6 to the same side.
  • the two links 6, 7, the arm portion 9 located between the two joints 10, 12, connecting rods 6, 7 to the arm 9 and the connection of the two joints 8, 11 of the links 6, 7 to the side 4 of the frame 3 constitute a deformable quadrilateral during the pivoting movements of the buffer 2 relative to the frame 3 between its lowered positions of closing the frame and opening thereof.
  • Each of the two longitudinal sides 4 of the frame 3 in which are articulated the corresponding ends of the links 6, 7 is provided with a member 13 for exerting on the buffer 2 a thrust force substantially perpendicular to the plane web 2b of the buffer 2 from a lifting force is applied to this pad from its lowered closed position.
  • Each thrust member 13 comprises a body 14 secured to the inner face of the corresponding side 4, for example by fixing screws, and in which a push rod 15 can be moved in a direction perpendicular to the longitudinal direction of the side 4.
  • the rod 15 is driven into the body 14 against the return force of a coil spring 16 mounted concentrically around the rod 15 in support firstly on a not visible shoulder in the body 14 and other under an end head 17 of the rod 15 on which bears the corresponding lower edge of the arm 9 in the closed position of the buffer.
  • transverse side of the frame 3 located near the joints 10 of the small links 6 in the closed position of the buffer 2 has its inclined face from bottom to top of the frame towards the inside of its opening.
  • the manhole is also provided with assistance means for opening or closing the buffer 2.
  • these assistance means comprise two gas lateral cylinders 18 each associated with a pair of rods 6, 7 and disposed in a plane parallel to these two rods.
  • Each assistance jack 18 is thus hingedly connected between the pad 2 and the frame 3. More specifically, the jack 18 has its jack rod 19 whose end is articulated to the inner face of the corresponding longitudinal side 4 of the frame 3 around a hinge axis 20 perpendicular to this side and located at a distance d4 greater than the distance d2 of the hinge 11 of the large link 7 and its cylinder 21 connected hinged near the end of the arm 9 around a hinge pin 22 perpendicular to the arm 9 and located opposite the axis of articulation 10 of the small link 6 to this arm.
  • Each jack 18 is located substantially in the same plane as the associated small rod 6.
  • the buffer 2 comprises, opposite its end portion comprising the two arms 9, two grip handles 23 removably attached to the web 2b of the buffer 2, substantially at the two corners thereof, for example via 24.
  • the two handles 23 may be constituted by two closed arches located respectively in two planes perpendicular to the plane of the web 2b of the buffer 2.
  • the rods 6, 7 pivot in the same direction about their hinge axes 8, 11 so as to move the buffer 2 out of the frame 3 and then the rods 6, 7 exert on the arm portion 9 located between their two hinge pins 10, 12 a pair of forces allowing the buffer 2 to pivot around itself as indicated by the arrow F1 to its final raised position at which the 2 buffer is reversed and held by the rods 6, 7.
  • this raised position of opening of the buffer 2 it is inclined at an angular position greater than 90 °, for example about 110 °, relative to the plane passing through the upper edge 4b delimiting the opening of the frame 3.
  • each of the small links 6 pivoted about its hinge axis 8 to an angular position greater than a right angle so that its articulation 10 is remote from the transverse side of the frame 3 close to the hinge 8, that is to say beyond its position perpendicular to the longitudinal direction of the corresponding side 4 of the frame 3 and approximately corresponding to the angle of inclination of the buffer 2 in its inverted position.
  • part of the edge of the buffer 2 is in blocking support on the two corresponding edges of the two small links 6.
  • the ratio of the distances between the two hinge pins 11, 12 of the large link 6 and the hinge pins 8, 10 of the associated small link 6 is about 2.6.
  • the distance between the hinge pins 11, 12 of the large link can be about 350 mm while the distance between the hinge pins 8, 10 of each small link 6 can be d ' about 135 mm.
  • the distance d1 and the distance d2 mentioned above can be respectively 150 mm and 440 mm.
  • the distance d3 separating the hinge axis 10 of each small link 6 to the hinge axis 12 of the associated large link 7 along the arm 9 is about 80 mm while the height of the hinge pin the hinge axis 8 of the small link 6 relative to the seat rebate 5 of the buffer 2 is about 36 mm and the height separating the hinge axis 11 of the large link 7 of this rabbet is about 70 mm.
  • the height between the axis 10 of the small connecting rod 6 and the rabbet 5 in the closed position of the buffer 2 of the figure 3 is about 15 mm.
  • the distance d5 separating the hinge axis 10 of each small link 6 from the vertical inner face of the corresponding transverse side of the frame 3 when the buffer is in its closed position of the figure 3 is about 20 mm. This distance d5 is also that between the axis 10 and the lower outer edge of the edge 2c of the buffer 2.
  • the horizontal distance between the hinge pins 11 and 20 of the rod 7 and the jack 18 is about 85 mm.
  • joints 8 and 11 of each pair of rods 6, 7 and the hinge 20 of the associated assistance cylinder 18 are fixed to a plate 24 removably fixed for example by means of fixing screws 25 , at the flat internal face of the corresponding longitudinal side 4 of the frame 3.
  • Each plate 24 is in some way office longitudinal side of the frame.
  • the two parallel plates 24 can be secured to one another by two rigid bars 26 visible in figure 8 disposed transversely between the two plates 24 respectively in the vicinity of the ends of these plates.
  • the two bars 26 may be rigidly fixed between the two plates 24 by fixing screws 27 passing through each curved portion 26a and anchored in the plate 24.
  • the two plates 24 secured to each other through the two transverse bars 26 are separated from the corresponding sides 4 of the frame 3 by removing the fixing screws 25 and the assembly constituted by the two plates 24, the two bars 26, the pairs of links 6, 7, the two assistance cylinders 8 and the buffer 2 can be removed in one block of the frame 3 at the raised position of the buffer 2.
  • the operation of closing the frame 3 by the buffer 2 is made by tilting the buffer 2 from its raised position of opening of the figures 7 and 8 by means of the two gripping handles 23, the tilting of the buffer 2 towards its closed position being effected by the links 6, 7 and assisted by the two jacks 18.
  • each small link 6 of a pair of rods 6, 7 is provided at its hinged end to the corresponding plate 24 of a shoe 30 fixed, for example by welding, to the link 6 opposite the plate 24 in FIG. space between the latter and the large rod 7 so as not to interfere with the rod 7 when switching the buffer 2 from its closed position to its open position or vice versa.
  • the shoe 30 has a cam face 31 extended by a flat face 32 which can come into contact, when the buffer 2 tilts to its open position, with the head-shaped end 33a of a rod 33 mounted on sliding guided in a body 34 removably attached to the plate 24.
  • a compression coil spring 35 is mounted coaxially around the rod 33 between the head 33a and an upstanding face 34a of the body 34.
  • the rod 33, the body 34 and the spring compression 35 extend in the same direction parallel to the longitudinal direction of the plate 24, that is to say the longitudinal direction of the corresponding side 4 of the frame 3.
  • each small link 6 causes the cam face 31 of the shoe 30 to come into contact with the head 33a. of the rod 33 so as to progressively compress the spring 35 as the tilting of the buffer 2 to its open position so that the spring 35 can dampen the tilting of the buffer 2 and, consequently, relieve the operator manipulating this buffer and avoid especially sudden tilting can occur from the standing position substantially 90 ° of the buffer 2 in its fully reversed tilted position.
  • the spring 35 is compressed at the most by the flat face 32 of the corresponding shoe 30.
  • the articulating device of the invention is of an extremely simple structure and, by means of the assistance means, makes it possible to ensure the opening and closing operations of the buffer 2 according to relatively limited efforts despite the high weight that can have the buffer.
  • the structure of the frame equipment and frame hinged buffer is not changed since all elements of the hinge device are simply reported to the frame and buffer.

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  • Engineering & Computer Science (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
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  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Vibration Dampers (AREA)
  • Road Paving Structures (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Superstructure Of Vehicle (AREA)
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  • Closures For Containers (AREA)

Abstract

The present invention relates to a device for hinging a lid or cover to a frame, such as a manhole. The device is characterized in that it comprises two lateral pairs of links (6, 7) connecting the lid (2) to the frame (3) and allowing, when a lifting force is applied to the lid (2) occupying its lowered closed position, a couple to be applied to the lid (2) causing the lid (2) to come out of the frame (3) and causing the lid (2) to pivot about itself to its raised position in which it is held by the links (6, 7). The invention is applicable to roads.

Description

La présente invention concerne un dispositif d'articulation d'un tampon ou couvercle à un cadre en forme de quadrilatère, notamment d'un regard de chaussée.The present invention relates to a hinge device for a buffer or cover to a frame in the form of a quadrilateral, including a manhole.

Un tel dispositif permet le basculement du tampon relativement au cadre entre une position abaissée de fermeture dans lequel le tampon s'inscrit en épaisseur dans les côtés du cadre pour s'appliquer au moins partiellement sur une feuillure du cadre et obturer l'ouverture bordée par les côtés du cadre, et une position relevée d'accès à l'ouverture du cadre.Such a device allows the tilting of the buffer relative to the frame between a lowered position of closure in which the buffer is in thickness in the sides of the frame to apply at least partially on a rabbet of the frame and close the opening bordered by the sides of the frame, and a raised position of access to the opening of the frame.

Les dispositifs d'articulation qui ont été proposés jusqu'à maintenant pour basculer un tampon ou couvercle de sa position de fermeture du cadre à sa position d'ouverture, et réciproquement, sont d'une structure extrêmement complexe et ne sont pas adaptés pour faciliter les opérations de manoeuvre du tampon à ses positions d'ouverture ou de fermeture du cadre.The hinge devices that have been proposed until now to switch a buffer or cover from its closed position of the frame to its open position, and vice versa, are of an extremely complex structure and are not adapted to facilitate the maneuver operations of the buffer at its open or closed positions of the frame.

Le document FR 2 710 040 décrit un dispositif d'articulation d'une trappe à un châssis formant un cadre comprenant les caractéristiques du préambule de la revendication 1.The document FR 2 710 040 discloses a device for hinging a hatch to a frame forming a frame comprising the features of the preamble of claim 1.

Plus précisément, ce dispositif d'articulation comporte deux paires de biellettes, l'une plus courte que l'autre, et articulées à des ferrures associées à la trappe d'une part et articulées à des ferrures solidaires du châssis d'autre part, de manière que chaque paire de biellettes constitue un quadrilatère déformable permettant de faire basculer la trappe vers sa position relevée ou vers sa position de fermeture du châssis.More specifically, this hinge device comprises two pairs of rods, one shorter than the other, and hinged to fittings associated with the hatch on the one hand and hinged to fittings integral with the chassis on the other hand, so that each pair of rods is a deformable quadrilateral to tilt the hatch to its raised position or to its closed position of the frame.

Ce dispositif d'articulation comprend en outre deux douilles retenant chacune un ressort à boudin et qui sont prévues sur le bord opposé aux articulations de la trappe. Ces ressorts sont susceptibles de prendre appui dans le châssis et d'être comprimés lorsque la trappe est en position fermée verrouillée en appui sur des traverses. Après déverrouillage de la serrure, les ressorts de la trappe la soulèvent de quelques centimètres afin de dégager un bras de levier pour manoeuvrer la trappe.This articulation device further comprises two sockets each retaining a coil spring and which are provided on the edge opposite to the hinges of the hatch. These springs are likely to be supported in the frame and to be compressed when the hatch is locked locked position in support on sleepers. After unlocking the lock, the springs of the hatch lift a few centimeters to release a lever arm to operate the hatch.

La trappe comprend une plaque supérieure de faible épaisseur venant en appui sur un joint torique creux d'étanchéité fixé à un embrèvement du châssis formant cadre lorsque la trappe occupe sa position de fermeture, et une partie entretoisée de forte épaisseur de dimensions très inférieures à celles du châssis formant cadre.The hatch comprises a thin top plate bearing against a hollow seal seal attached to a recess of the frame frame when the trapdoor is in its closed position, and a thickly braced portion of dimensions much smaller than those chassis frame.

Un tel dispositif d'articulation ne concerne pas une trappe de forte épaisseur s'inscrivant dans un cadre et qui poserait un problème pour un tel genre de trappe pour assurer son ouverture. En effet, dès le déverrouillage de la serrure, les ressorts à boudin font pivoter la trappe relativement aux articulations constituées par les biellettes et un tel pivotement serait empêché si la trappe devait s'inscrire en épaisseur dans les côtés du cadre.Such a hinge device does not relate to a trap of great thickness in a frame and which would pose a problem for such a kind of hatch to ensure its opening. Indeed, upon unlocking the lock, the coil springs pivot the hatch relative to the joints formed by the rods and such pivoting would be prevented if the hatch was to register in thickness in the sides of the frame.

Le but de l'invention est de proposer un dispositif d'articulation d'une structure extrêmement simple et qui permet en outre à un opérateur d'aisément basculer le tampon de sa position d'ouverture ou de fermeture du cadre sans effort important et sans risque de coincement du tampon dans le cadre dès le début du soulèvement du tampon.The object of the invention is to provide a hinge device of an extremely simple structure and which also allows an operator to easily switch the buffer from its position of opening or closing the frame without significant effort and without risk of jamming of the buffer in the frame from the beginning of the lifting of the buffer.

A cet effet, le dispositif d'articulation de l'invention comprend les caractéristiques telles qu'énoncées dans la partie caractérisante de la revendication 1.For this purpose, the hinge device of the invention comprises the features as set forth in the characterizing part of claim 1.

De préférence, chaque organe exerce l'effort de poussée à un emplacement du tampon situé au voisinage des deux axes d'articulation au tampon des deux biellettes d'une même paire.Preferably, each member exerts the thrust force at a location of the buffer located in the vicinity of the two axes of articulation to the buffer of the two links of the same pair.

Chaque paire de biellettes comprend d'une part une biellette de plus courte longueur dont l'extrémité articulée au côté du cadre est située à une distance relativement courte de l'extrémité correspondant de ce côté et l'extrémité opposée reliée articulée au tampon est située à proximité de la rive correspondante du tampon et d'autre part une biellette de plus grande longueur dont l'extrémité articulée au côté du cadre est située à une distance plus éloignée de l'extrémité de ce côté que celle de l'extrémité de la biellette de plus courte longueur et l'extrémité opposée articulée au tampon est située à une distance de la rive du tampon plus éloignée que celle de l'extrémité d'articulation de la biellette de plus courte longueur.Each pair of links comprises on the one hand a shorter link length whose end articulated to the side of the frame is located at a relatively short distance from the corresponding end of this side and the opposite end connected to the buffer is located near the corresponding bank of the buffer and on the other hand a longer rod whose end hinged to the side of the frame is located at a distance farther from the end of this side than that of the end of the shorter rod length and the opposite end articulated to the buffer is located at a distance from the buffer edge further than that of the hinge end of the rod shorter length.

De préférence, chaque organe de poussée comprend une tige à coulissement guidé, suivant une direction perpendiculaire à la direction longitudinale du côté du cadre, dans un corps solidaire de ce côté, la tige ayant une tête d'extrémité sur laquelle vient en appui le tampon à sa position abaissée de fermeture de manière à enfoncer la tige dans le corps à l'encontre de la force de rappel d'un élément élastique, tel qu'un ressort hélicoïdale de compression.Preferably, each thrust member comprises a sliding guide rod, in a direction perpendicular to the longitudinal direction of the side of the frame, in a body secured to this side, the rod having an end head on which bears the buffer in its lowered closed position so as to drive the rod into the body against the biasing force of an elastic member, such as a helical compression spring.

De préférence, le dispositif est pourvu de moyens d'assistance à l'ouverture ou à la fermeture du tampon.Preferably, the device is provided with assistance means for opening or closing the buffer.

Ces moyens d'assistance comprennent deux vérins latéraux à gaz chacun relié articulé entre le cadre et le tampon et parallèlement au voile plan de ce dernier.These assistance means comprise two lateral gas cylinders each connected articulated between the frame and the buffer and parallel to the plane web of the latter.

Les deux biellettes d'une même paire sont reliées articulées au tampon par l'intermédiaire d'un bras rigide solidaire du tampon perpendiculairement à la rive de ce tampon et chaque organe exerce l'effort de poussée sur le bras rigide correspondant du tampon.The two links of the same pair are connected articulated to the buffer via a rigid arm secured to the pad perpendicularly to the shore of this buffer and each member exerts the thrust force on the corresponding rigid arm of the buffer.

Chaque vérin d'assistance à l'une de ses extrémités reliée articulée au bras du tampon à une distance plus éloignée de la rive du tampon que celle de l'extrémité de la biellette de plus grande longueur à cette rive.Each assistance cylinder at one of its ends connected hinged to the buffer arm at a distance farther from the edge of the buffer than that of the end of the rod of greater length to this bank.

Chaque vérin d'assistance a son extrémité reliée articulée vers l'extrémité du côté du cadre opposée à celle au voisinage de laquelle est articulée l'extrémité de la biellette de plus courte longueur.Each assistance cylinder has its end connected hinged towards the end of the side of the frame opposite to that in the vicinity of which is articulated the end of the rod of shorter length.

Chaque vérin d'assistance a sa tige reliée articulée au côté du cadre et son cylindre relié articulé au tampon.Each assistance cylinder has its connected rod hinged to the side of the frame and its connected cylinder articulated to the buffer.

La biellette de plus grande longueur de chaque paire de biellettes est articulée au côté correspondant du cadre à un niveau inférieur à celui de l'extrémité d'articulation à ce côté de la biellette de plus courte longueur associée.The longer link of each pair of links is hinged to the corresponding side of the frame at a lower level than that of the hinge end to that side of the shorter link rod associated.

Les biellettes et les vérins d'assistance sont reliés articulés aux côtés parallèles du cadre par l'intermédiaire de deux platines amoviblement fixées à ces deux côtés et deux barres peuvent être fixées par leurs extrémités transversalement entre les deux platines au voisinage des extrémités de ces dernières et les deux platines peuvent être désolidarisées de leurs côtés respectifs du cadre de manière à retirer de ce cadre l'ensemble constitué par le tampon, les biellettes, les vérins d'assistance, les platines et les deux barres de liaison l'une à l'autre des deux platines.The links and the assistance cylinders are articulated to the parallel sides of the frame by means of two plates removably attached to these two sides and two bars can be fixed at their ends transversely between the two plates in the vicinity of the ends of the latter. and the two plates can be detached from their respective sides of the frame so as to remove from this frame the assembly constituted by the buffer, the rods, the assistance cylinders, the plates and the two connecting bars one to one. other of the two decks.

Le rapport de distances entre les axes d'articulation de la biellette la plus longue à la biellette la plus courte est d'environ 2,6.The ratio of distances between the axes of articulation of the longest link to the shorter link is about 2.6.

La distance entre les axes d'articulation de la plus grande biellette est d'environ 350 mm et celle entre les axes d'articulation de la plus courte biellette est d'environ 135 mm.The distance between the hinge pins of the larger link is about 350 mm and that between the hinge pins of the shorter link is about 135 mm.

La distance séparant l'axe d'articulation de la plus courte biellette à la rive correspondante du tampon est d'environ 20 mm, la distance séparant l'un de l'autre les deux axes d'articulation des deux biellettes d'une même paire au tampon est d'environ 80 mm et la distance séparant l'axe d'articulation de la grande biellette à la feuillure d'assise du tampon est d'environ 70 mm tandis que la distance séparant l'axe d'articulation de la plus petite biellette à cette feuillure est d'environ 36 mm.The distance separating the axis of articulation from the shortest link to the corresponding bank of the buffer is approximately 20 mm, the distance separating the two axes of articulation of the two links of the same one from the other. The buffer pair is approximately 80 mm and the distance between the hinge axis of the large link and the buffer rebate is approximately 70 mm, while the distance between the hinge pin and the hinge pin is approximately 70 mm. smaller link at this rabbet is about 36 mm.

Le dispositif de l'invention s'applique à un cadre selon lequel ses côtés présentent une dépouille déterminée, par exemple, d'environ 9° d'angle, de manière que les faces internes inclinées des deux côtés opposés du cadre soient parallèles l'une à l'autre et que les faces internes inclinées des deux autres côtés opposés du cadre parallèles aux biellettes divergent l'une de l'autre.The device of the invention is applied to a frame according to which its sides have a determined relief, for example, of approximately 9 ° angle, so that the inclined internal faces of the two opposite sides of the frame are parallel to each other. to one another and that inclined internal faces of the other two opposite sides of the frame parallel to the rods diverge from each other.

Le tampon est maintenu par les biellettes à sa position relevée et renversée suivant un angle d'environ 110° relativement au cadre.The pad is held by the links in its raised and inverted position at an angle of about 110 ° relative to the frame.

Le dispositif est pourvu d'au moins une poignée de préhension solidaire du voile plan du tampon à l'opposé de sa rive d'articulation aux biellettes.The device is provided with at least one gripping handle secured to the plane web of the pad opposite its hinge edge to the rods.

Avantageusement, chaque petite biellette est pourvue à son extrémité articulée au côté du cadre d'un sabot apte à comprimer, lors du basculement du tampon à sa position d'ouverture, un organe élastiquement déformable suivant une direction parallèle à la direction longitudinale du côté du cadre de manière à amortir le basculement du tampon.Advantageously, each small link is provided at its end hinged to the side of the frame of a shoe adapted to compress, during the tilting of the buffer to its open position, an elastically deformable member in a direction parallel to the longitudinal direction of the side of the frame so as to damp the tilting of the buffer.

De préférence, l'organe élastiquement déformable est un ressort hélicoïdal de compression d'axe parallèle au côté du cadre et qui est monté coaxialement autour d'une tige entre une tête de celle-ci et un corps solidaire du côté du cadre, la tige pouvant coulisser dans le corps lorsque la tête de la tige entre en contact avec une partie formant came de sabot de la petite biellette de manière à comprimer le ressort.Preferably, the elastically deformable member is a helical compression spring axis parallel to the side of the frame and which is mounted coaxially around a rod between a head thereof and a body secured to the frame side, the rod slidable in the body when the head of the rod contacts a shoe cam portion of the small link to compress the spring.

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

  • la figure 1 est une vue en perspective d'un ensemble à tampon et cadre d'un regard de chaussée où le tampon occupe sa position de fermeture du cadre et est relié à ce dernier par un dispositif d'articulation conforme à l'invention ;
  • la figure 2 est une vue en perspective semblable à celle de la figure 1 montrant une première phase de dégagement du tampon de son cadre ;
  • la figure 3 est une vue en coupe suivant la ligne III-III de la figure 1 et représentant une partie du dispositif d'articulation de l'invention ;
  • la figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 2 ;
  • la figure 5 est une vue en coupe partielle semblable à celle des figures 3 et 4 et montrant le basculement du tampon vers sa position d'ouverture par le dispositif d'articulation de l'invention ;
  • la figure 6 est une vue partielle en perspective du tampon occupant une position intermédiaire d'ouverture ;
  • la figure 7 est une vue partielle en perspective représentant le tampon à sa position finale renversée d'ouverture du cadre ;
  • la figure 8 est une vue en perspective représentant le dispositif d'articulation au complet maintenant le tampon à sa position finale d'ouverture ;
  • la figure 9 est une vue en perspective de dessous du tampon à sa position de fermeture et représentant des moyens permettant d'amortir le basculement du tampon à sa position d'ouverture ;
  • la figure 10 est une vue en perspective de côté montrant les moyens d'amortissement à une position entrouverte du tampon ; et
  • la figure 11 est une vue en perspective de côté montrant les moyens d'amortissement à la position d'ouverture renversée du tampon.
The invention will be better understood, and other objects, features, details and advantages thereof will appear more clearly in the course of the following explanatory description made with reference to the accompanying drawings given solely by way of example relating to an embodiment of the invention and in which:
  • the figure 1 is a perspective view of a buffer assembly and frame of a manhole where the buffer occupies its closed position of the frame and is connected thereto by a hinge device according to the invention;
  • the figure 2 is a perspective view similar to that of the figure 1 showing a first phase of disengagement of the buffer from its frame;
  • the figure 3 is a sectional view along line III-III of the figure 1 and representing a part of the hinge device of the invention;
  • the figure 4 is a sectional view along line IV-IV of the figure 2 ;
  • the figure 5 is a partial sectional view similar to that of Figures 3 and 4 and showing the tilting of the tampon towards its open position by the hinge device of the invention;
  • the figure 6 is a partial perspective view of the buffer occupying an intermediate opening position;
  • the figure 7 is a partial perspective view showing the stamp at its final inverted position of opening the frame;
  • the figure 8 is a perspective view showing the entire hinge device holding the pad at its final open position;
  • the figure 9 is a perspective view from below of the tampon to its closed position and showing means for damping the tilting of the buffer to its open position;
  • the figure 10 is a perspective side view showing the damping means at an open position of the buffer; and
  • the figure 11 is a side perspective view showing the damping means at the reversed opening position of the pad.

En se reportant aux figures, la référence 1 désigne un regard de chaussée permettant d'accéder par exemple à une cheminée de visite de galerie creusée dans le sol et comprenant un tampon ou couvercle 2 et un cadre 3 auquel le tampon 2 est monté articulé entre une position abaissée de fermeture du cadre et une position relevée inclinée d'ouverture de ce cadre.Referring to the figures, the reference numeral 1 designates a manhole allowing access for example to a tunnel inspection chimney dug in the ground and comprising a buffer or cover 2 and a frame 3 to which the buffer 2 is articulated between a position lowered closure of the frame and a raised inclined opening position of this frame.

Le regard, dont le tampon 2 et le cadre 3 sont réalisés en fonte, est de forme générale rectangulaire.The look, the buffer 2 and the frame 3 are made of cast iron, is of generally rectangular shape.

En position abaissée de fermeture du cadre 3, le tampon 2 s'inscrit en épaisseur dans les parois 4 constituant les côtés du cadre 3 pour s'appliquer sur une feuillure 5 du cadre 3 et ainsi obturer l'ouverture bordée par les côtés 4 de ce cadre.In the lowered position of closure of the frame 3, the buffer 2 is in thickness in the walls 4 constituting the sides of the frame 3 to be applied on a rabbet 5 of the frame 3 and thus close the opening bordered by the sides 4 of this frame.

Comme représenté, les côtés 4 du cadre 3 ont leurs faces internes 4a inclinées de manière à présenter une dépouille par exemple d'environ 9°. Ainsi, deux des côtés parallèles 4a du cadre 3 appelés côtés longitudinaux ont leurs faces internes biseautées de manière à diverger l'une de l'autre vers le bord supérieur de l'ouverture du cadre 3, tandis que les deux autres côtés 4 de ce cadre, appelés côtés transversaux, ont leurs faces internes biseautées 4a parallèles l'une à l'autre.As shown, the sides 4 of the frame 3 have their internal faces 4a inclined so as to have a draft for example of about 9 °. Thus, two of the parallel sides 4a of the frame 3 called longitudinal sides have their internal faces bevelled so as to diverge from one another to the upper edge of the opening of the frame 3, while the other two sides 4 of this frame, called transverse sides, have their beveled inner faces 4a parallel to each other.

Bien entendu, les faces latérales externes 2a du tampon 2 sont biseautées d'un même angle que celui des faces internes biseautées 4a des côtés 4 du cadre 3 de manière que le tampon 2 puisse s'inscrire en épaisseur dans le cadre 3 avec son voile plan 2b en affleurement avec le bord supérieur 4b des parois 4 délimitant l'ouverture du cadre 3 en position abaissée de fermeture du tampon 2.Of course, the external lateral faces 2a of the buffer 2 are bevelled at the same angle as the bevelled inner faces 4a of the sides 4 of the frame 3 so that the buffer 2 can be inscribed in thickness in the frame 3 with its veil plane 2b flush with the upper edge 4b of the walls 4 delimiting the opening of the frame 3 in the lowered position of closure of the buffer 2.

Cependant, le cadre peut être de conception classique, c'est-à-dire que les faces internes de ses côtés sont planes et perpendiculaires au plan passant par le bord d'ouverture 4b du cadre 3.However, the frame may be of conventional design, that is to say that the internal faces of its sides are flat and perpendicular to the plane passing through the opening edge 4b of the frame 3.

Le dispositif d'articulation de l'invention comprend deux paires latérales de biellettes internes 6, 7 reliant le tampon 2 au cadre 3 en étant disposées symétriquement relativement au plan médian vertical du cadre 3 et parallèles aux deux côtés longitudinaux 4 de ce cadre.The hinge device of the invention comprises two lateral pairs of inner links 6, 7 connecting the buffer 2 to the frame 3 being arranged symmetrically relative to the vertical median plane of the frame 3 and parallel to the two longitudinal sides 4 of the frame.

Les deux biellettes 6 et 7 d'une même paire sont disposées respectivement dans deux plans parallèles au côté longitudinal correspondant 4 du cadre 3 et comprennent une biellette de plus courte longueur ou petite biellette 6 et une biellette de plus grande longueur ou grande biellette 7.The two rods 6 and 7 of the same pair are arranged respectively in two planes parallel to the corresponding longitudinal side 4 of the frame 3 and comprise a rod of shorter length or small rod 6 and a rod of greater length or large rod 7.

La petite biellette 6 de chaque paire a l'une de ses extrémités montée articulée à la face interne plane du côté correspondant 4 du cadre 3 située en dessous de sa face biseautée 4a autour d'un axe d'articulation 8 perpendiculaire à ce côté et situé à une distance relativement courte d1 de l'extrémité correspondante de ce côté. L'extrémité opposée de la petite biellette 6 est reliée articulée au tampon 2 par l'intermédiaire d'un bras rigide 9 fixé sous le tampon 2 en s'étendant perpendiculairement à la rive ou bord 2c du tampon 2 adjacente au côté transversal correspondant 4 du cadre 3, le bras 9 étant parallèle au voile plan 2b du tampon 2. L'axe d'articulation 10 de la biellette 6 s'étend perpendiculairement au bras 9, c'est-à-dire parallèlement à la rive 2c du tampon 2, et est situé à proximité de cette rive.The small link 6 of each pair has one of its ends articulated to the planar inner face of the corresponding side 4 of the frame 3 located below its bevelled face 4a about an axis of articulation 8 perpendicular to this side and located at a relatively short distance d1 from the corresponding end of this side. The opposite end of the small link 6 is connected hinged to the buffer 2 by means of a rigid arm 9 fixed under the buffer 2 extending perpendicularly to the edge or edge 2c of the buffer 2 adjacent to the corresponding transverse side 4 of the frame 3, the arm 9 being parallel to the plane web 2b of the buffer 2. The hinge axis 10 of the rod 6 extends perpendicularly to the arm 9, that is to say parallel to the bank 2c of the buffer 2, and is located near this shore.

La grande biellette 7 a l'une de ses extrémités reliée articulée au côté 4 du cadre 3, auquel est reliée la biellette 6, autour d'un axe d'articulation 11 perpendiculaire à ce côté et situé à une distance d2 de l'extrémité de ce côté, plus grande que la distance d1 séparant l'axe d'articulation 8 de la biellette 6 de cette même extrémité. L'extrémité opposée de la grande biellette 7 est reliée articulée au bras 9 autour d'un axe d'articulation 12 s'étendant perpendiculairement au bras 9 et situé à une certaine distance d3 relativement à l'axe d'articulation 10 de la petite biellette 6, c'est-à-dire que l'axe d'articulation 12 est plus éloigné de la rive correspondante 2c du tampon 2 que l'axe d'articulation 10 de la petite biellette 6. En outre, l'articulation de la grande biellette 7 au côté longitudinal correspondant 4 du cadre 3 est conçue de manière que la biellette 7 soit située à une distance plus éloignée de la face interne de ce côté que la petite biellette 6 qui se trouve très proche de cette face interne. Ainsi, la petite biellette 6 est articulée entre le bras 9, le côté 4 du cadre 2 et la grande biellette 7 tandis que la grande biellette 7 est reliée articulée au côté opposé de ce bras.The large link 7 has one of its ends connected hinged to the side 4 of the frame 3, which is connected to the link 6, about an axis of articulation 11 perpendicular to this side and located at a distance d2 from the end on this side, greater than the distance d1 separating the hinge axis 8 of the rod 6 of this same end. The opposite end of the large link 7 is connected articulated to the arm 9 about an articulation axis 12 extending perpendicular to the arm 9 and located at a distance d3 relative to the axis of articulation 10 of the small rod 6, that is to say that the hinge axis 12 is further from the corresponding bank 2c of the buffer 2 that the hinge axis 10 of the small rod 6. In addition, the hinge joint 12 the big link 7 at the side longitudinal corresponding 4 of the frame 3 is designed so that the rod 7 is located at a distance farthest from the inner face of this side as the small rod 6 which is very close to this inner face. Thus, the small link 6 is articulated between the arm 9, the side 4 of the frame 2 and the large link 7 while the large link 7 is connected hinged to the opposite side of this arm.

L'articulation 11 de la grande biellette 7 au côté correspondant 4 du cadre 3 est située à un niveau inférieur, relativement à la feuillure 5, à celui de l'articulation 8 de la petite biellette 6 à ce même côté.The hinge 11 of the large link 7 to the corresponding side 4 of the frame 3 is located at a lower level, relative to the rabbet 5, that of the hinge 8 of the small link 6 to the same side.

Ainsi, les deux biellettes 6, 7, la partie de bras 9 située entre les deux articulations 10, 12, des biellettes 6, 7 au bras 9 et la liaison des deux articulations 8, 11 des biellettes 6, 7 au côté 4 du cadre 3 constituent un quadrilatère déformable lors des mouvements de pivotement du tampon 2 relativement au cadre 3 entre ses positions abaissée de fermeture du cadre et d'ouverture de celui-ci.Thus, the two links 6, 7, the arm portion 9 located between the two joints 10, 12, connecting rods 6, 7 to the arm 9 and the connection of the two joints 8, 11 of the links 6, 7 to the side 4 of the frame 3 constitute a deformable quadrilateral during the pivoting movements of the buffer 2 relative to the frame 3 between its lowered positions of closing the frame and opening thereof.

Chacun des deux côtés longitudinaux 4 du cadre 3 dans lesquels sont articulés les extrémités correspondantes des biellettes 6, 7 est pourvu d'un organe 13 permettant d'exercer sur la tampon 2 un effort de poussée sensiblement perpendiculaire au voile plan 2b du tampon 2 dès qu'un effort de soulèvement est appliqué à ce tampon à partir de sa position abaissée de fermeture.Each of the two longitudinal sides 4 of the frame 3 in which are articulated the corresponding ends of the links 6, 7 is provided with a member 13 for exerting on the buffer 2 a thrust force substantially perpendicular to the plane web 2b of the buffer 2 from a lifting force is applied to this pad from its lowered closed position.

Chaque organe de poussée 13 comprend un corps 14 solidaire de la face interne du côté correspondant 4, par exemple par des vis de fixation, et dans lequel peut se déplacer une tige de poussée 15 suivant une direction perpendiculaire à la direction longitudinale du côté 4. En position abaissée de fermeture du tampon 2 dans le cadre 3, la tige 15 est enfoncée dans le corps 14 à l'encontre de la force de rappel d'un ressort hélicoïdal 16 monté concentriquement autour de la tige 15 en appui d'une part sur un épaulement non visible dans le corps 14 et d'autre sous une tête d'extrémité 17 de la tige 15 sur laquelle vient en appui le bord inférieur correspondant du bras 9 à la position de fermeture du tampon.Each thrust member 13 comprises a body 14 secured to the inner face of the corresponding side 4, for example by fixing screws, and in which a push rod 15 can be moved in a direction perpendicular to the longitudinal direction of the side 4. In the lowered position of closing the buffer 2 in the frame 3, the rod 15 is driven into the body 14 against the return force of a coil spring 16 mounted concentrically around the rod 15 in support firstly on a not visible shoulder in the body 14 and other under an end head 17 of the rod 15 on which bears the corresponding lower edge of the arm 9 in the closed position of the buffer.

Il est à noter que le côté transversal du cadre 3 situé a proximité des articulations 10 des petites biellettes 6 en position de fermeture du tampon 2, a sa face inclinée de bas en haut du cadre vers l'intérieur de son ouverture.It should be noted that the transverse side of the frame 3 located near the joints 10 of the small links 6 in the closed position of the buffer 2, has its inclined face from bottom to top of the frame towards the inside of its opening.

Le regard de chaussée est également pourvu de moyens d'assistance à l'ouverture ou à la fermeture du tampon 2.The manhole is also provided with assistance means for opening or closing the buffer 2.

De préférence, ces moyens d'assistance comprennent deux vérins latéraux à gaz 18 chacun associé à une paire de biellettes 6, 7 et disposé dans un plan parallèle à ces deux biellettes.Preferably, these assistance means comprise two gas lateral cylinders 18 each associated with a pair of rods 6, 7 and disposed in a plane parallel to these two rods.

Chaque vérin d'assistance 18 est ainsi relié articulé entre le tampon 2 et le cadre 3. Plus précisément, le vérin 18 a sa tige de vérin 19 dont l'extrémité est articulée à la face interne du côté longitudinal correspondant 4 du cadre 3 autour d'un axe d'articulation 20 perpendiculaire à ce côté et situé à une distance d4 supérieure à la distance d2 de l'articulation 11 de la grande biellette 7 et son cylindre 21 relié articulé à proximité de l'extrémité du bras 9 autour d'un axe d'articulation 22 perpendiculaire au bras 9 et situé à l'opposé de l'axe d'articulation 10 de la petite biellette 6 à ce bras. Chaque vérin 18 est situé sensiblement dans le même plan que la petite biellette associée 6.Each assistance jack 18 is thus hingedly connected between the pad 2 and the frame 3. More specifically, the jack 18 has its jack rod 19 whose end is articulated to the inner face of the corresponding longitudinal side 4 of the frame 3 around a hinge axis 20 perpendicular to this side and located at a distance d4 greater than the distance d2 of the hinge 11 of the large link 7 and its cylinder 21 connected hinged near the end of the arm 9 around a hinge pin 22 perpendicular to the arm 9 and located opposite the axis of articulation 10 of the small link 6 to this arm. Each jack 18 is located substantially in the same plane as the associated small rod 6.

Le tampon 2 comprend à l'opposé de sa partie d'extrémité comportant les deux bras 9 deux poignées de préhension 23 amoviblement fixées au voile 2b du tampon 2, sensiblement au niveau des deux coins de celui-ci, par l'intermédiaire par exemple de vis de fixation 24. Les deux poignées 23 peuvent être constituées par deux arceaux fermés situés respectivement dans deux plans perpendiculaires au plan du voile 2b du tampon 2.The buffer 2 comprises, opposite its end portion comprising the two arms 9, two grip handles 23 removably attached to the web 2b of the buffer 2, substantially at the two corners thereof, for example via 24. The two handles 23 may be constituted by two closed arches located respectively in two planes perpendicular to the plane of the web 2b of the buffer 2.

Le fonctionnement du dispositif d'articulation de l'invention ressort déjà de la description qui en a été faite précédemment et va être maintenant expliqué.The operation of the hinge device of the invention is already apparent from the description which has been made previously and will now be explained.

Lorsqu'un opérateur souhaite effectuer le basculement du tampon 2 de sa position de fermeture représentée en figure 1 à sa position relevée d'ouverture finale représentée aux figures 7 et 8, il saisit manuellement les deux poignées de préhension 23 pour exercer sur le tampon 2 un effort de soulèvement qui provoque dans un premier temps un léger pivotement des biellettes 6, 7 autour de leurs axes d'articulation respectifs et amène les deux organes 13 à exercer sous le tampon 2 un effort de poussée vers le haut perpendiculaire au plan du voile 2b du tampon 2 et ces mouvements combinés déplacent le tampon 2 dans son plan d'une hauteur déterminée h relativement au bord 4b délimitant l'ouverture du cadre 3 comme représenté en figure 2 afin de désengager les faces périphériques inclinées 2a du tampon 2 des faces périphériques inclinées 4a du cadre 3. Ainsi, dans un premier temps, le tampon 2 est déplacé parallèlement aux faces internes inclinées des côtés transversaux du cadre 3 pour le dégager du cadre de la hauteur h.When an operator wishes to switch the buffer 2 from its closed position shown in FIG. figure 1 in its raised position of final opening represented in figures 7 and 8 he grasps manually the two grips 23 to exert on the buffer 2 a lifting force which causes at first a slight pivoting rods 6, 7 around their respective axes of articulation and causes the two organs 13 to exercise under the buffer 2 an upward pushing force perpendicular to the plane of the web 2b of the buffer 2 and these combined movements move the buffer 2 in its plane by a determined height h relative to the edge 4b delimiting the opening of the frame 3 as shown in figure 2 in order to disengage the inclined peripheral faces 2a of the buffer 2 from the inclined peripheral faces 4a of the frame 3. Thus, in a first step, the buffer 2 is moved parallel to the inclined internal faces of the transverse sides of the frame 3 to disengage it from the frame of the height h.

En continuant l'effort de traction sur les poignées 23, les biellettes 6, 7 pivotent dans le même sens autour de leurs axes d'articulation 8, 11 de manière à déplacer le tampon 2 hors du cadre 3 et ensuite les biellettes 6, 7 exercent sur la partie de bras 9 située entre leurs deux axes d'articulation 10, 12 un couple de forces permettant de faire basculer autour de lui-même le tampon 2 comme indiqué par la flèche F1 jusqu'à sa position finale relevée à laquelle le tampon 2 est renversé et maintenu par les biellettes 6, 7. A cette position relevée d'ouverture du tampon 2, celui-ci est incliné à une position angulaire supérieure à 90°, par exemple d'environ 110°, relativement au plan passant par le bord supérieur 4b délimitant l'ouverture du cadre 3. En outre, à la position relevée du tampon 2, chacune des petites biellettes 6 a pivoté autour de son axe d'articulation 8 à une position angulaire supérieure à un angle droit de manière que son articulation 10 soit éloignée du côté transversal du cadre 3 proche de l'articulation 8, c'est-à-dire au-delà de sa position perpendiculaire à la direction longitudinale du côté correspondant 4 du cadre 3 et correspondant approximativement à l'angle d'inclinaison du tampon 2 à sa position renversée. En outre, à cette position, une partie de la rive du tampon 2 est en appui de blocage sur les deux bords correspondants des deux petites biellettes 6.By continuing the tensile force on the handles 23, the rods 6, 7 pivot in the same direction about their hinge axes 8, 11 so as to move the buffer 2 out of the frame 3 and then the rods 6, 7 exert on the arm portion 9 located between their two hinge pins 10, 12 a pair of forces allowing the buffer 2 to pivot around itself as indicated by the arrow F1 to its final raised position at which the 2 buffer is reversed and held by the rods 6, 7. In this raised position of opening of the buffer 2, it is inclined at an angular position greater than 90 °, for example about 110 °, relative to the plane passing through the upper edge 4b delimiting the opening of the frame 3. In addition, the raised position of the buffer 2, each of the small links 6 pivoted about its hinge axis 8 to an angular position greater than a right angle so that its articulation 10 is remote from the transverse side of the frame 3 close to the hinge 8, that is to say beyond its position perpendicular to the longitudinal direction of the corresponding side 4 of the frame 3 and approximately corresponding to the angle of inclination of the buffer 2 in its inverted position. In addition, at this position, part of the edge of the buffer 2 is in blocking support on the two corresponding edges of the two small links 6.

Bien entendu, le déplacement du tampon 2 de sa position d'ouverture en passant par son basculement autour de lui-même à sa position relevée finale est assisté par les deux vérins à gaz 18.Of course, the movement of the buffer 2 from its open position through its tilting around itself to its final raised position is assisted by the two gas cylinders 18.

De préférence, le rapport des distances entre les deux axes d'articulation 11, 12 de la grande biellette 6 et les axes d'articulation 8, 10 de la petite biellette associée 6 est d'environ 2,6. A titre d'exemple, la distance entre les axes d'articulation 11, 12 de la grande biellette peut être d'environ 350 mm tandis que la distance entre les axes d'articulation 8, 10 de chaque petite biellette 6 peut être d'environ 135 mm. La distance d1 et la distance d2 mentionnées précédemment peuvent être respectivement de 150 mm et 440 mm.Preferably, the ratio of the distances between the two hinge pins 11, 12 of the large link 6 and the hinge pins 8, 10 of the associated small link 6 is about 2.6. For example, the distance between the hinge pins 11, 12 of the large link can be about 350 mm while the distance between the hinge pins 8, 10 of each small link 6 can be d ' about 135 mm. The distance d1 and the distance d2 mentioned above can be respectively 150 mm and 440 mm.

En outre, la distance d3 séparant l'axe d'articulation 10 de chaque petite biellette 6 à l'axe d'articulation 12 de la grande biellette associée 7 le long du bras 9 est d'environ 80 mm tandis que la hauteur de l'axe d'articulation 8 de la petite biellette 6 relativement à la feuillure d'assise 5 du tampon 2 est d'environ 36 mm et la hauteur séparant l'axe d'articulation 11 de la grande biellette 7 de cette feuillure est d'environ 70 mm. La hauteur entre l'axe d'articulation 10 de la petite biellette 6 et la feuillure 5 en position de fermeture du tampon 2 de la figure 3 est d'environ 15 mm. La distance d5 séparant l'axe d'articulation 10 de chaque petite biellette 6 de la face interne verticale du côté transversal correspondant du cadre 3 lorsque le tampon occupe sa position de fermeture de la figure 3 est d'environ 20 mm. Cette distance d5 est également celle entre l'axe 10 et l'arête externe inférieure de la rive 2c du tampon 2. La distance horizontale entre les axes d'articulation 11 et 20 de la biellette 7 et du vérin 18 est d'environ 85 mm.In addition, the distance d3 separating the hinge axis 10 of each small link 6 to the hinge axis 12 of the associated large link 7 along the arm 9 is about 80 mm while the height of the hinge pin the hinge axis 8 of the small link 6 relative to the seat rebate 5 of the buffer 2 is about 36 mm and the height separating the hinge axis 11 of the large link 7 of this rabbet is about 70 mm. The height between the axis 10 of the small connecting rod 6 and the rabbet 5 in the closed position of the buffer 2 of the figure 3 is about 15 mm. The distance d5 separating the hinge axis 10 of each small link 6 from the vertical inner face of the corresponding transverse side of the frame 3 when the buffer is in its closed position of the figure 3 is about 20 mm. This distance d5 is also that between the axis 10 and the lower outer edge of the edge 2c of the buffer 2. The horizontal distance between the hinge pins 11 and 20 of the rod 7 and the jack 18 is about 85 mm.

Par ailleurs, avantageusement, les articulations 8 et 11 de chaque paire de biellettes 6, 7 ainsi que l'articulation 20 du vérin d'assistance associé 18 sont fixées à une platine 24 amoviblement fixée par exemple à l'aide de vis de fixation 25, à la face interne plane du côté longitudinal correspondant 4 du cadre 3. Chaque platine 24 fait en quelque sorte office de côté longitudinal du cadre.Furthermore, advantageously, the joints 8 and 11 of each pair of rods 6, 7 and the hinge 20 of the associated assistance cylinder 18 are fixed to a plate 24 removably fixed for example by means of fixing screws 25 , at the flat internal face of the corresponding longitudinal side 4 of the frame 3. Each plate 24 is in some way office longitudinal side of the frame.

Les deux platines parallèles 24 peuvent être solidarisées l'une à l'autre par deux barres rigides 26 visibles en figure 8 disposées transversalement entre les deux platines 24 respectivement au voisinage des extrémités de ces platines. Chaque barre 26 à chacune de ses extrémités 26a coudée à angle droit se terminant par un rebord 26b replié à angle droit par rapport à la partie coudée 26a et pouvant venir en appui sur le bord supérieur correspondant 24a de la platine 24 se trouvant au même niveau que la feuillure 5 du cadre 3. Les deux barres 26 peuvent être fixées rigidement entre les deux platines 24 par des vis de fixation 27 traversant chaque partie recourbée 26a et ancrées dans la platine 24.The two parallel plates 24 can be secured to one another by two rigid bars 26 visible in figure 8 disposed transversely between the two plates 24 respectively in the vicinity of the ends of these plates. Each bar 26 at each of its ends 26a bent at right angles ending in a rim 26b folded at right angles to the bent portion 26a and can bear against the corresponding upper edge 24a of the plate 24 being at the same level The two bars 26 may be rigidly fixed between the two plates 24 by fixing screws 27 passing through each curved portion 26a and anchored in the plate 24.

Une fois les deux platines 24 solidarisées l'une à l'autre par l'intermédiaires des deux barres transversales 26, les deux platines 24 sont désolidarisées des côtés correspondants 4 du cadre 3 en retirant les vis de fixation 25 et l'ensemble constitué par les deux platines 24, les deux barres 26, les paires de biellettes 6, 7, les deux vérins d'assistance 8 et le tampon 2 peut être retiré en un seul bloc du cadre 3 à la position relevée du tampon 2.Once the two plates 24 secured to each other through the two transverse bars 26, the two plates 24 are separated from the corresponding sides 4 of the frame 3 by removing the fixing screws 25 and the assembly constituted by the two plates 24, the two bars 26, the pairs of links 6, 7, the two assistance cylinders 8 and the buffer 2 can be removed in one block of the frame 3 at the raised position of the buffer 2.

L'opération de fermeture du cadre 3 par le tampon 2 s'effectue en faisant basculer la tampon 2 de sa position relevée d'ouverture des figures 7 et 8 à l'aide des deux poignées de préhension 23, le basculement du tampon 2 vers sa position de fermeture étant effectué par les biellettes 6, 7 et assisté par les deux vérins 18.The operation of closing the frame 3 by the buffer 2 is made by tilting the buffer 2 from its raised position of opening of the figures 7 and 8 by means of the two gripping handles 23, the tilting of the buffer 2 towards its closed position being effected by the links 6, 7 and assisted by the two jacks 18.

Avantageusement, chaque petite biellette 6 d'une paire de biellettes 6, 7 est pourvue à son extrémité articulée à la platine correspondante 24 d'un sabot 30 fixé, par exemple par soudage, à la biellette 6 en regard de la platine 24 dans l'espace entre cette dernière et la grande biellette 7 de manière à ne pas interférer avec la biellette 7 lors du basculement du tampon 2 de sa position de fermeture à sa position d'ouverture ou réciproquement.Advantageously, each small link 6 of a pair of rods 6, 7 is provided at its hinged end to the corresponding plate 24 of a shoe 30 fixed, for example by welding, to the link 6 opposite the plate 24 in FIG. space between the latter and the large rod 7 so as not to interfere with the rod 7 when switching the buffer 2 from its closed position to its open position or vice versa.

Le sabot 30 présente une face formant came 31 prolongée d'une face plane 32 pouvant venir en contact, lors du basculement du tampon 2 à sa position d'ouverture, avec l'extrémité en forme de tête 33a d'une tige 33 montée à coulissement guidé dans un corps 34 amoviblement fixé à la platine 24. Un ressort hélicoïdal de compression 35 est monté coaxialement autour de la tige 33 entre la tête 33a et une face dressée 34a du corps 34. La tige 33, le corps 34 et le ressort de compression 35 s'étendent suivant une même direction parallèle à la direction longitudinale de la platine 24, c'est-à-dire la direction longitudinale du côté correspondant 4 du cadre 3.The shoe 30 has a cam face 31 extended by a flat face 32 which can come into contact, when the buffer 2 tilts to its open position, with the head-shaped end 33a of a rod 33 mounted on sliding guided in a body 34 removably attached to the plate 24. A compression coil spring 35 is mounted coaxially around the rod 33 between the head 33a and an upstanding face 34a of the body 34. The rod 33, the body 34 and the spring compression 35 extend in the same direction parallel to the longitudinal direction of the plate 24, that is to say the longitudinal direction of the corresponding side 4 of the frame 3.

Lorsque le tampon 2 est déplacé à partir de sa position d'obturation du cadre 3 vers sa position d'ouverture renversée, le pivotement concomitant de chaque petite biellette 6 amène la face formant came 31 du sabot 30 à venir en contact avec la tête 33a de la tige 33 de manière à progressivement comprimer le ressort 35 au fur et à mesure du basculement du tampon 2 vers sa position d'ouverture de manière que le ressort 35 puisse amortir le basculement du tampon 2 et, par conséquent, soulager l'opérateur manoeuvrant ce tampon et éviter notamment le basculement plutôt brusque pouvant se produire de la position debout sensiblement à 90° du tampon 2 à sa position basculée totalement renversée. Lorsque le tampon 2 arrive à sa position d'ouverture renversée de la figure 11, le ressort 35 est comprimé au maximum par la face plane 32 du sabot correspondant 30.When the pad 2 is moved from its closed position of the frame 3 to its inverted opening position, the concomitant pivoting of each small link 6 causes the cam face 31 of the shoe 30 to come into contact with the head 33a. of the rod 33 so as to progressively compress the spring 35 as the tilting of the buffer 2 to its open position so that the spring 35 can dampen the tilting of the buffer 2 and, consequently, relieve the operator manipulating this buffer and avoid especially sudden tilting can occur from the standing position substantially 90 ° of the buffer 2 in its fully reversed tilted position. When the buffer 2 arrives at its inverted opening position of the figure 11 , the spring 35 is compressed at the most by the flat face 32 of the corresponding shoe 30.

Le dispositif d'articulation de l'invention est d'une structure extrêmement simple et, à l'aide des moyens d'assistance, permet d'assurer les opérations d'ouverture et de fermeture du tampon 2 suivant des efforts relativement limités malgré le poids élevé que peut avoir le tampon. En outre, la structure de l'équipement de voirie à cadre et tampon articulé au cadre n'est pas changée puisque tous les éléments du dispositif d'articulation sont tout simplement rapportés au cadre et au tampon.The articulating device of the invention is of an extremely simple structure and, by means of the assistance means, makes it possible to ensure the opening and closing operations of the buffer 2 according to relatively limited efforts despite the high weight that can have the buffer. In addition, the structure of the frame equipment and frame hinged buffer is not changed since all elements of the hinge device are simply reported to the frame and buffer.

Claims (21)

  1. A device for hinging a lid or cover (2) to a frame (3) in the shape of a quadrilateral, in particular a manhole, allowing the lid (2) to tilt relative to the frame (3) between a lowered closing position in which the lid (2) covers the opening bordered by the sides (4) of the frame (3) while at least partially pressing on a rebate (5) of the frame (3) and a raised position to access the opening of the frame (3), the device comprising two lateral pairs of connecting rods (6, 7) connecting the lid (2) to the frame (3), the two connecting rods (6, 7) of a same pair being positioned respectively in two planes parallel to the corresponding side (4) of the frame (3) and having two of their ends hingedly connected to the side (4) of the frame (3) around two axes (8, 11) transverse to said side and their other two opposite ends hingedly connected to the lid (2) under the latter around two axes (10, 12) parallel to the hinge pins (8, 11) of the connecting rods (6, 7) at the frame (3) and situated near the edge (2c) of the lid (2) perpendicular to the articulation side (4) of the connecting rods (6, 7) at the frame (3) while being distant from one another in a direction perpendicular to the edge (2c) of the lid (2), so that the connecting rods (6, 7) of each pair make up a deformable quadrilateral making it possible, when a lifting force is exerted on the lid (2) in its lowered closing position opposite its articulation edge to the connecting rods (6, 7), to apply to the lid (2) a pair of forces causing the lid (2) to leave the frame (3) and causing the lid (2) to tilt around itself to its raised and upright position in which it is maintained by the connecting rods (6, 7), characterized in that in the lowered closing position of the lid (2), the latter fits in terms of thickness into the sides (4) of the frame (3) and in that the device also comprises, secured to each side (4) of the frame (3) therein, a member (13) making it possible to exert, on the lid (2), a thrust force substantially perpendicular to the flat wall (2b) of the lid (2) once the lifting force is applied to the lid (2) from its lowered closed position so as to disengage, through the combined forces exerted by the connecting rods (6, 7) and the thrust members (13), the lid (2) parallel to the sides (4) of the frame (3) by a predetermined height (h) before the connecting rods (6, 7) can cause the lid (2) to tilt toward its raised and upright position.
  2. The device according to claim 1, characterized in that each member (13) exerts the thrust force at a location of the lid (2) situated near the two hinge pins (10, 12) to the lid (2) of the two connecting rods (6, 7) of a same pair.
  3. The device according to claim 1 or 2, characterized in that each pair of connecting rods comprises on the one hand a shorter connecting rod (6) whereof the end articulated to the side (4) of the frame (3) is situated at a relatively short distance from the corresponding end of that side and the opposite end hingedly connected to the lid (2) is situated near the corresponding edge of the lid, and on the other hand a longer connecting rod (7) whereof the end articulated to the side (4) of the frame (3) is situated at a further distance from the end of that side than that of the articulated end of the shorter connecting rod (6) and the opposite end articulated to the lid (2) is situated at a further distance from the edge of the lid (2) than that of the articulation end of the shorter connecting rod (6).
  4. The device according to one of the preceding claims, characterized in that each thrust member (13) comprises a rod (15) with guided sliding, in a direction perpendicular to the longitudinal direction of the side (4) of the frame (3), in a body (14) secured to that side, the rod (15) having an end head (17) on which the lid (2) bears in its lowered closing position so as to push the rod (15) into the body (14) against the return force of an elastic element (16), such as a helical compression spring.
  5. The device according to one of the preceding claims, characterized in that it comprises means (18) for assisting with the opening or closing of the lid (2).
  6. The device according to claim 5, characterized in that the assistance means comprise two lateral gas cylinders (18) each hingedly connected between the frame (3) and the lid (2).
  7. The device according to one of the preceding claims, characterized in that the two connecting rods (6, 7) of a same pair are hingedly connected to the lid (2) via a rigid arm (9) secured to the lid (2) perpendicular to the edge (2c) of the lid (2) and parallel to the flat wall (2b) of the lid (2) and in that each member (13) exerts the thrust force on the corresponding rigid arm (9) of the lid (2).
  8. The device according to claim 7, characterized in that one end of each assistance cylinder (18) is hingedly connected to the arm (9) of the lid (2) at a distance further from the edge (2c) of the lid (2) than that of the articulation end of the longer connecting rod (7) to that edge.
  9. The device according to one of claims 6 to 8, characterized in that the end of each assistance cylinder (18) is hingedly connected toward the end of the side of the frame opposite that in the vicinity of which the end of the shorter connecting rod (6) is articulated.
  10. The device according to one of claims 6 to 9, characterized in that the rod (19) of each assistance cylinder (18) is hingedly connected to the side (4) of the frame (3) and the cylinder (21) thereof is hingedly connected to the lid (2).
  11. The device according to one of the preceding claims, characterized in that the longer connecting rod (7) of each pair of connecting rods (6, 7) is articulated to the corresponding side (4) of the frame (3) at a lower level than that of the articulation end to that side of the associated shorter connecting rod (6).
  12. The device according to one of the preceding claims, characterized in that the connecting rods (6, 7) and the assistance cylinders (18) are hingedly connected to the parallel sides (4) of the frame (3) via two platens (24) removably fixed to those two sides, in that two bars (26) can be fixed by their ends transversely between the two platens (24) near the ends thereof and in that the two platens (24) can be separated from their respective sides (4) of the frame (3) so as to remove from said frame the assembly formed by the lid (2), the connecting rods (6, 7), the assistance cylinders (18), the platens (24), and the two bars (26) for connecting the two platens (24) to one another.
  13. The device according to one of claims 3 to 12, characterized in that the ratio of the distances between the hinge pins of the longer connecting rod (7) to the shorter connecting rod (6) is approximately 2.6.
  14. The device according to claim 13, characterized in that the distance between the hinge pins of the larger connecting rod (7) is approximately 350 mm and that between the hinge pins of the shorter connecting rod (6) is about 135 mm.
  15. The device according to claim 13 or 14, characterized in that the distance separating the hinge pin of the shorter connecting rod (6) from the corresponding edge of the lid (2) is approximately 20 mm, the distance separating either of the two hinge pins of the two connecting rods (6, 7) of a same pair from the lid (2) is approximately 80 mm and in that the distance separating the hinge pin of the large connecting rod (7) from the rebate seating (5) of the lid (2) is approximately 70 mm while the distance separating the hinge pin of the small connecting rod (6) from that rebate is approximately 36 mm.
  16. The device according to one of the preceding claims, characterized in that the frame (3) is of the type according to which its sides (4) have a particular taper, for example an angle of approximately 9°, so that the inclined inner surfaces (4a) of the two opposite sides (4) of the frame (3) are parallel to one another and the inclined inner surfaces (4a) of the other two opposite sides (4) of the frame (3) diverge from one another.
  17. The device according to one of the preceding claims, characterized in that the lid (2) is maintained by the connecting rods (6, 7) in its raised and upright position by an angle of about 110° relative to the frame (3).
  18. The device according to one of the preceding claims, characterized in that it comprises at least one gripping handle (23) secured to the flat wall (2b) of the lid (2) opposite its hinge edge (2c) to the connecting rods (6, 7).
  19. The device according to one of claims 3 to 18, characterized in that the end of each small connecting rod (6) articulated to the side (4) of the frame (3) is provided with a boot (30) able to compress, during tilting of the lid (2) to its opening position, an elastically deformable member (35) in a direction parallel to the longitudinal direction of the side (4) of the frame (3) so as to damp the tilting of the lid (2).
  20. The device according to claim 19, characterized in that the elastically deformable member (35) is a helical compression spring with an axis parallel to the side (4) of the frame (3), and mounted coaxially around a rod (33) between a head thereof and a body (34) secured to the side (4) of the frame (3), the rod (33) being able to slide in the body (34) when the head (33a) of the rod (33) comes into contact with a part forming a cam (31) of the boot (30) of the small connecting rod (6) so as to compress the spring (35).
  21. The device according to one of the preceding claims, characterized in that the edge (2c) of the lid (2) bears on the two corresponding edges of the two small connecting rods (6) to block the lid (2) in its raised and upright position.
EP07858564A 2006-10-13 2007-10-12 Device for hinging a lid or cover to a frame, such as a manhole Active EP2078116B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL07858564T PL2078116T3 (en) 2006-10-13 2007-10-12 Device for hinging a lid or cover to a frame, such as a manhole
SI200730906T SI2078116T1 (en) 2006-10-13 2007-10-12 Device for hinging a lid or cover to a frame, such as a manhole

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0654268A FR2907143B1 (en) 2006-10-13 2006-10-13 DEVICE FOR JOINING A BUFFER OR COVER TO A FRAME, IN PARTICULAR A PAVEMENT LOOK
PCT/FR2007/052136 WO2008043972A2 (en) 2006-10-13 2007-10-12 Device for hinging a lid or cover to a frame, such as a manhole

Publications (2)

Publication Number Publication Date
EP2078116A2 EP2078116A2 (en) 2009-07-15
EP2078116B1 true EP2078116B1 (en) 2012-02-01

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EP07858564A Active EP2078116B1 (en) 2006-10-13 2007-10-12 Device for hinging a lid or cover to a frame, such as a manhole

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EP (1) EP2078116B1 (en)
CN (1) CN101583764B (en)
AT (1) ATE543955T1 (en)
AU (1) AU2007306148B2 (en)
ES (1) ES2381214T3 (en)
FR (1) FR2907143B1 (en)
MA (1) MA30788B1 (en)
NO (1) NO20091812L (en)
PL (1) PL2078116T3 (en)
PT (1) PT2078116E (en)
RS (1) RS52208B (en)
SI (1) SI2078116T1 (en)
WO (1) WO2008043972A2 (en)

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JPH10280459A (en) * 1997-04-09 1998-10-20 Ishikawajima Shibaura Mach Co Ltd Hinge device for underground structure cover
CN2554231Y (en) * 2002-06-15 2003-06-04 于跃新 Hinged conjoined anti-theft manhole cover
CN2563193Y (en) * 2002-08-10 2003-07-30 燕山大学 Safety lock, self protection hinge safety anti-theft manhole cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD941028S1 (en) 2019-05-08 2022-01-18 Russell William Roth Utility box cover

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WO2008043972A2 (en) 2008-04-17
FR2907143A1 (en) 2008-04-18
AU2007306148B2 (en) 2012-08-23
CN101583764B (en) 2012-12-19
NO20091812L (en) 2009-07-02
FR2907143B1 (en) 2010-01-01
ATE543955T1 (en) 2012-02-15
PT2078116E (en) 2012-05-02
CN101583764A (en) 2009-11-18
WO2008043972A3 (en) 2008-06-05
EP2078116A2 (en) 2009-07-15
ES2381214T3 (en) 2012-05-24
AU2007306148A1 (en) 2008-04-17
PL2078116T3 (en) 2012-06-29
MA30788B1 (en) 2009-10-01
SI2078116T1 (en) 2012-05-31
RS52208B (en) 2012-10-31

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