EP2366835A1 - Schachtabdeckung - Google Patents

Schachtabdeckung Download PDF

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Publication number
EP2366835A1
EP2366835A1 EP11157178A EP11157178A EP2366835A1 EP 2366835 A1 EP2366835 A1 EP 2366835A1 EP 11157178 A EP11157178 A EP 11157178A EP 11157178 A EP11157178 A EP 11157178A EP 2366835 A1 EP2366835 A1 EP 2366835A1
Authority
EP
European Patent Office
Prior art keywords
frame
buffer
opening
self
locking arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11157178A
Other languages
English (en)
French (fr)
Other versions
EP2366835B1 (de
Inventor
Pascal Lacroix
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 PL11157178T priority Critical patent/PL2366835T3/pl
Publication of EP2366835A1 publication Critical patent/EP2366835A1/de
Application granted granted Critical
Publication of EP2366835B1 publication Critical patent/EP2366835B1/de
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
    • 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

Definitions

  • the present invention relates to a road device, in particular a manhole, comprising a rectangular frame whose side and end walls delimit an opening and at least one buffer, one side of which is articulated to tilt relative to an adjacent end wall. frame by at least one articulation hinge.
  • the invention applies in particular but in a non-limiting manner to manholes.
  • the frame is permanently sealed in the ground and one or more buffers hinged to the frame can occupy a folded position to which the buffers seal the opening in this frame or a raised position to which the buffers give off. opening of the frame.
  • Each articulation hinge of a frame buffer generally has a functional clearance allowing the stamp to articulate without difficulty to the frame and to register correctly in the opening of the frame delimited by its four side walls and ends for close this opening.
  • each floor manhole plug is very heavy because of its construction made of cast iron material, in particular spheroidal material.
  • buffers are difficult to maneuver when tilting between the closed and open positions of the frame and, moreover, when they occupy their raised open position, they can accidentally tilt to their closed position. the opening of the frame.
  • Such a device comprises, for each sighting plug, at least one assist cylinder for opening and closing the buffer mounted articulated by its ends under the buffer and the frame and a self-locking arm also articulated by its ends between the buffer and the frame and allowing to block the buffer in its upright open position without risk of accidental tilting of the buffer to its closed position of the opening of the frame.
  • such a safety device has the disadvantage that during the swing of the buffer to its closed position of the opening of the frame, the assistance cylinder exerts on the buffer a thrust force towards the end wall of the opposite frame to the hinge hinge whose functional clearance may cause the corresponding edge of the buffer to hit the upper edge of the end wall, thus preventing a correct closure of the frame opening by the buffer and risking d damage both the edge of the pad and the corresponding end wall of the frame.
  • the road device in particular the manhole, of the type comprising a rectangular frame whose side and end walls delimit an opening, at least one buffer, one side of which is articulated relative to a adjacent end wall of the frame by at least one hinge hinge having a functional clearance to allow the buffer to switch between a standing position released from the opening of the frame and a closed position of this opening being supported on a inner circumferential wall of the frame and being inscribed in the frame, at least one assistance cylinder for opening or closing the buffer mounted hinged between the buffer and the frame, and at least one self-locking arm mounted articulated between the buffer and the frame parallel to the assistance cylinder and making it possible to block the buffer in its raised position of disengagement from the opening of the frame, is characterized in that the self-locking arm has its articulated end mounted to the frame being slidable in a fixed, elongated groove of integral guide of the frame and extending below the frame of the frame wall parallel to this wall so that the end of the self-locking arm can approach
  • the self-locking arm has a predetermined length and is hingedly connected to a specific location of the pad so that, bearing on its sliding end against the fixed stop, it keeps the pad in a half-open position relative to the frame and the arm self-locking causes the recoil of the buffer towards the adjacent end wall of the frame by exerting on the buffer occupying its interlocked position a relatively high pressure to bring the buffer to its closed position of the opening of the frame.
  • the buffer has the shape of a right triangle and a single self-locking arm is articulated under the buffer near its right side adjacent to the hinged side of the frame and the corresponding side wall of the frame.
  • the road device comprises a second buffer in the form of a right triangle whose one side is hinged relative to the other end wall of the frame by at least one hinge hinge having a functional clearance to allow the second buffer to switch between a standing position released from the opening of the frame and a closed position of this opening being in resting on the inner circumferential wall of the frame and being inscribed in the frame, at least one assistance cylinder for opening or closing the second buffer mounted hinged between this buffer and the frame and a single self-locking arm articulated parallel to the assistance cylinder between the frame and under the second buffer adjacent its right side adjacent to the hinged side of the frame and to block the buffer to its standing position of the opening of the frame, the self-locking arm having its articulated end mounted to the frame being slidable in a second fixed groove fixed guide integral with the frame and extending below the frame of the seat wall parallel to this wall so that the end of the self-locking arm can be closer to the opposite end wall of the frame during the tilting of the second buffer to its closed position of the frame
  • the two triangulated buffers allow to completely close the opening of the frame to their closed position.
  • the pad is of rectangular shape able to completely close the opening of the frame to its closed position
  • a second self-locking arm is articulated between the pad and the frame parallel to the assistance cylinder and also allowing to block the buffer to its standing position of the opening of the frame
  • the second self-locking arm having its end mounted articulated to the slidable frame in a second fixed groove fixed guide integral with the frame extending below the frame of the seat wall parallel to this wall so that the end of the second self-locking arm can move closer to the other wall end of the frame during the tilting of the buffer to its closed position of the opening of the frame
  • a second stop being fixed to the frame perpendicular to the other end wall of the frame so that the sliding end of the second arm self-locking comes to bear on the second stop when tilting the buffer to its closed position of the opening of the frame to cause the recoil of the buffer to the end wall adjacent to the hinged side of the buffer and allow the latter to close the opening of the frame.
  • Each self-locking arm is articulated on the one hand by one of its ends under the buffer around a transverse axis of the arm and on the other hand by its opposite end sliding around a transverse axis of the arm and engaged through the corresponding guide groove for sliding along this groove.
  • Each guide groove comprises at its end opposite to the corresponding abutment a notch for receiving the sliding axis of the self-locking arm to block the buffer in its standing position of disengagement from the opening of the frame.
  • the two self-locking arms have the same length, are arranged in two planes perpendicular to the plane of the opening edge of the frame and are articulated by two of their ends under the buffer around two coaxial axes and their two opposite ends to the frame around two coaxial axes.
  • the device comprises two coaxial articulation hinges of the buffer frame spaced from each other parallel to the adjacent end wall of the frame.
  • Each articulation hinge comprises a cylindrical axis parallel to the adjacent end wall of the frame carried by a clevis integral with the corresponding part of the frame of the frame and two lugs forming integral with the buffer and arranged between the two arms of the frame.
  • the clevis being traversed by the cylindrical axis, the lugs forming knuckles having an orifice of dimension greater than the diameter of the cylindrical axis to allow movement with clearance of the buffer relative to the cylindrical axis.
  • Each stop is adjustable in the direction perpendicular to the corresponding end wall.
  • the device comprises at least one resiliently deformable means attached to the seat wall projecting from it in the vicinity of the end wall of the frame opposite to the end wall adjacent to the hinge hinge and adapted to facilitate the opening of the buffer from its closed position of the frame.
  • the assistance cylinder is articulated on an axis integral with a plate below the frame of the frame.
  • the device of the invention which will be described applies to at least one buffer for manhole but it is understood that it can be applied to any buffer or leaf other than that of a manhole.
  • the manhole comprises a frame 1 of generally rectangular shape comprising two side walls 2 and two end walls 3 welded to each other and defining an opening.
  • Each side wall 2 and end wall 3 constitutes one of the wings of an L-shaped section section whose other wing 4 is fixed on a sub-frame 5 by means of fixing bolts 6.
  • the wings 4 associated with the side walls 2 and the ends 3 protrude into the opening of the frame 1 and are arranged in the same plane to form a peripheral wall seat 7 of a rectangular buffer 8 of the manhole when the buffer 8 occupies its closed position of the opening of the frame 1 being inscribed in the opening of this frame 1.
  • the sub-frame 5 is intended to be partially buried in the floor of a roadway and is constituted by a flat rectangular upper frame 9 and a lower underlying skirt 10 assembled together by welding so as to present in cross-section a shape
  • the wing 4 associated with each side wall 2 and end 3 is fixed on the horizontal portion forming the T head of the sub-frame 5 projecting into the opening of the frame 1 and outside the latter.
  • the sub-frame 5 is also provided with four angled feet 11 respectively fixed to the four inner corners of the skirt 10.
  • the buffer 8 is articulated by one of its sides 8a, called the rear side, to an adjacent end wall 3, called the rear wall, preferably by two hinge hinges 12 to allow the buffer 8 to to switch between a standing position of clearance of the opening of the frame 1 and a fully closed position of the opening of this frame.
  • the two hinge hinges 12 are arranged coaxially on the flange 4 associated with the rear wall 3 extending parallel to this rear wall.
  • each hinge hinge comprises a cylindrical axis 13 parallel to the rear wall and carried by a yoke 14, the two parallel branches 14a are fixed, for example by welding, on the flange 4 perpendicular to the latter.
  • the cylindrical axis of articulation 13 of each hinge 12 crosses virtually without play the two branches 14a of the support yoke 14.
  • Each hinge hinge 12 also comprises two lugs forming knuckles 15 integral with the inner face of the buffer 8 in the vicinity the rear edge thereof and arranged parallel between the two branches 14a of the yoke 14 being traversed by the cylindrical axis of articulation 13.
  • the orifice 16 formed through each lug forming the knuckle 15 is larger than the diameter of the hinge pin 13 passing through this orifice to form a relatively large functional clearance of the hinge hinge 12.
  • the orifice 16 is obtained by a foundry core and has the particular shape in cross-section of the figure 4 allowing the pad 8 to switch between its upright positions of the opening of the frame 1 and closing of this opening without risk of jamming of the hinge hinge 12, while allowing movement of the rear edge 8a of the buffer 8 relatively to the rear wall 3 as will be seen later.
  • the orifice 16 may have a different shape and be constituted by an oblong hole as soon as this orifice allows the rear edge 8a of the buffer 8 to move away from or approach the corresponding rear wall 3 during the tilting of the buffer 8 between its two open and closed positions of the frame 1.
  • Each hinge pin 13 is held axially to the yoke 14 by at least one elastic ring 14b, in this case two in number, attached to each end of the axis 13 outside the corresponding branch 14a of the yoke 14.
  • the two axes 13 of the hinges 12 are arranged coaxially with respect to each other.
  • the pad 8 comprises at each of its four corners a pad 17 bearing on the peripheral wall seat 7 when the pad 8 is in its closed position of the opening of the frame 1.
  • the buffer 8 is also provided with a lock housing 18 fixed under the buffer in the vicinity of its front edge 8b and whose bolt 19 can engage under a striker 20 projecting from the inner face of the front end wall 3 of the frame 1 to lock the buffer 8 to the frame 1 as shown in FIG. figure 2 .
  • the bolt 19 is operable in its unlocked position of the striker 20 by a key 21.
  • the manhole further comprises two parallel jacks 22 for assistance in opening or closing the buffer 8 and mounted hinged between the buffer 8 and the frame 1. More specifically, the body 23 of each assistance cylinder 22 at one of its ends articulated on an axis 24 secured to a lug 25 fixed to a plate 26 projecting into the opening of the frame 1 and integral with the inner face of the corresponding skirt wall and the corresponding wing 4 associated with the rear wall 3 so that the hinge pin 24 is disposed below the wing 4 forming part of the seat wall 7 of the frame 1.
  • the rod 27 of each cylinder 22 is hinged to its other end on an axis 28 secured to the end of a rib 29 projecting from the inner face of the pad 8 perpendicular thereto.
  • the two shafts 24 and 28 of each jack 22 are parallel to the hinge pins 13 of the hinges 12.
  • the two jacks 22 are thus arranged respectively in two planes perpendicular to the plane of the opening edge of the frame 1.
  • a single assistance cylinder 22 can be articulated between the buffer 8 and the frame 1.
  • the manhole also comprises two self-locking arms 30 each consisting of a flat rigid bar and articulated between the buffer 8 and the frame 1 on either side of the assistance cylinders 22 parallel thereto.
  • Each self-locking arm 30 has one of its ends articulated on an axis 31 carried by a lug 32 secured to the inner face of the pad 8 perpendicular thereto and located near the corresponding lateral edge 8c of the pad 8.
  • the two axes hinge 31 to the buffer 8 of the two self-locking arms 30 are coaxial and parallel to the hinge pins 13 of the hinges 12.
  • each hinge pin 31 is constituted by a threaded rod of a screw passing through the lug 32 and the end of the arm 30 and whose head 33 is supported on the side face of the lug 32 opposite that on which bears the end of the self-locking arm 30.
  • each self-locking arm 30 is articulated on an axis 34 which passes through a fixed groove guide 35 extending below the flange 4 and parallel to the latter which is part of the seat wall 7 associated with the corresponding side wall 2 of the frame 1, groove 35 which also extends perpendicularly from the plane containing the front end wall 3 of the frame 1 for a predetermined distance corresponding to half the length of the side wall 2
  • the two axes 34 of the arms 30 are coaxial and parallel to the axes 13 of the hinge hinges 12.
  • Each groove 35 is made through a rectangular plate 36 fixed, for example by welding, facing the corresponding wall portion of the skirt 10 of the sub-frame 5 and parallel to this portion leaving a space in which is housed the head 37 of a screw constituting the axis 34 passing through the corresponding end of the self-locking arm 30.
  • each self-locking arm 30 is disposed in a plane perpendicular to the plane of the opening edge of the frame 1 and located near the inner edge of the flange 4 associated with the side wall 2 of the frame 1 so that the two self-locking arms 30 can debate in the opening of the frame 1 when switching the buffer 8 between its open and closed positions of this frame.
  • Each of the grooves 35 has at its end opposite to the front end wall 3 of the frame 1 a notch 37 for receiving the hinge pin 34 when the pad 8 is in its raised or standing position for disengaging the opening of the frame 1 represented in figure 7 so that the two self-locking arms 30 can block the buffer at this raised position.
  • the coaxial articulation axes 31 of the two self-locking arms 30 to the buffer 8 are located relatively to the front edge 8b of the buffer 8 at a distance farther than that separating the coaxial articulation axes 28 of the cylinders 22 of this front edge.
  • the manhole further comprises two stops 38 fixed to the frame 1 being respectively disposed in the two planes containing the two self-locking arms 30 protruding into the opening of the frame 1 from the plane containing the front end wall 3 of this frame perpendicular to this plane. More specifically, each abutment 38 is fixed to a stud 39 fixed under the horizontal branch portion 9 of the T of the sub-frame 5 so that the abutment 38 protrudes from the two superposed internal edges of the flange 4 associated with the wall. front end 30 and the transverse leg portion of the T of the sub-frame 5.
  • Each stop 38 is adjustable in the direction perpendicular to the plane containing the front end wall 3 of the frame 1.
  • each abutment 38 comprises a screw whose rod 40 is anchored in its stud 39 and the head 41 protrudes into the opening of the frame 1, and a nut 42 for locking the rod 40 in the stud 39.
  • the two cylinders 23, the two self-locking arms 30, the two guide grooves 35 of the corresponding ends of the two self-locking arms 30 and the two stops 38 are arranged symmetrically to the vertical median plane of the frame 1 parallel to the two side walls 2 of this frame.
  • the manhole is finally provided with at least one means 43 for assisting the opening of the buffer 8 when it occupies its closed position of the opening of the frame 1.
  • two means 43 for assisting the opening of the buffer 8 are provided and are respectively arranged in the two corners of the frame 1 defined between the front end wall 3 and the two side walls 2 of this frame and to the opposite hinge hinges 12.
  • Each means 43 is elastically deformable and protrudes from the seat wall 7 so that it is resiliently compressed by the corresponding pad 17 of the pad 8 when the latter occupies its closed position of the frame and is locked to the frame by the bolt assembly 19 and striker 20.
  • each means 43 may be constituted by a rod push rod 44 secured to a circular head 45 and compression coil spring 46 mounted coaxially around the rod 44 resting on the one hand under the head 45 and on the other hand at the bottom of a blind hole 47 made in the thickness of the seat wall portion 7 and the underlying part of the head 9 of the T of this frame 5.
  • each of the two studs 17 located near the front edge 8b of the buffer 8 is in abutment with the corresponding head 45 of the plunger means 43 for engaging it, against the restoring force of the spring 46, in the blind hole 47 so that the outer face of the head 45 is flush with the upper face of the corresponding wall portion sitting 7.
  • each means 43 facilitating the opening of the buffer 8 may consist of a cylindrical block of elastomeric material fixed in the corresponding blind hole 47 projecting from the upper face of the corresponding part of the frame's seat wall. 1 and can be elastically compressed by the corresponding stud 17 in the closed position of the buffer 8.
  • the pad 8 comprises an additional pad 17 disposed near the front edge 8b of the pad 8 between the two end pads 17.
  • the buffer 8 is locked in the frame 1 by the bolt 19 of the lock housing 18 engaged under the striker 20 of the frame 1.
  • the two means 43 forming pusher are then elastically compressed in their respective blind holes 47 by the two pads 17 of the buffer 8.
  • an operator unlocks the buffer 8 of the frame 1 with the aid of the key 21 to disengage the bolt 19 from the latch 20.
  • the two pusher means 43 then exert on the buffer 8 a thrust force causing this buffer to a half open position, no shown in the figures, in which the operator can easily grasp the front edge 8b of the buffer 8, if necessary with the aid of a tool, to rotate it to its upright position of the opening of the frame 1 shown in FIG. to the figures 7 and 9 .
  • the cylinders 22 fulfill their role of assisting the opening of the buffer 8 and the ends of the self-locking arms 30 slide respectively in the two grooves 35 until their two pivot axes 34 engage in their notches 37 to safely block the buffer 8 to its raised position of disengagement of the opening of the frame 1.
  • each hinge hinge 12 allows a displacement of the rear edge 8a of the buffer 8 relative to the fixed axis of articulation 13 to avoid any risk of jamming during assisted tilting of the buffer 8 from its position closing at its open position.
  • the operator manually disengages the two pivot axes 34 from their respective notches 37 by acting on the self-locking arms 30 to cause pivoting assisted by the jacks 22 of the buffer 8 to its closed position.
  • the two self-locking arms 30 have the same length determined and articulated are connected to a specific location of the buffer 8 so that bearing on the two abutments 38, they hold the buffer 8 in the intermediate safety interlocked position of the figure 5 .
  • This security half-open position will then force the operator to switch the buffer 8 to its position of closing the opening of the frame 1 by exerting on the buffer a significant pressure obtained by the weight of the operator on this buffer.
  • the two self-locking arms 30 are substantially horizontal by considering the pavement of a pavement and the two assistance cylinders 22 are slightly inclined up and down in the direction of the front end wall 3 of the frame 1.
  • the pad 8 is correctly inscribed in the opening defined by the side walls 2 and end 3 of the frame 1 to its closed position of this frame and is automatically locked to the frame 1 by the bolt 19 engaged under the strike 20.
  • the figure 14 represents another embodiment of the manhole according to which two buffers 8 in the form of a right triangle are articulated on the opposite sides of a rectangular frame 1 between a raised position of the buffers 8 of this figure to which the opening of the frame 1 is disengaged and a fully closed position of the opening of this frame to which the two buffers 8 are inscribed in the frame 1 with their hypotenuse walls 8d juxtaposed and extending along a diagonal of the frame 1.
  • Each pad 8 is articulated by one of its straight sides 8a relative to the so-called corresponding end wall 3 of the frame 1 by two hinges 12 identical hinge hinges 12 of the first embodiment of the Figures 1 to 13 .
  • each articulation hinge 12 of a triangulated pad 8 relative to the wall 3 of the frame 1, nor the way in which the components of this hinge are fixed to the pad 8 and to the corresponding seat wall part 7.
  • Each triangulated buffer 8 comprises beneath it at its top a stud 17 bearing, in the closed position of the buffer, on the seat wall portion 7 located at the corner of the frame 1 defined between the end wall 3 opposite the articulation hinges 12 of this buffer and the side wall 2 adjacent to the other right side of the triangulated buffer 8 in the closed position of this buffer.
  • the two diagonally opposite corners of the frame 1 in which are housed respectively the two pads 17 of the two triangulated pads 8 each comprise means for assisting the opening of each pad 8 and identical to the means 23 described in the first embodiment of FIG. realization of the look of roadway.
  • one of the two triangulated pads 8 is equipped with a bolt lock housing 18 which can engage under a striker, not shown, of the side wall 2 of the frame 1 adjacent to the side or edge 8c of the buffer 8 to lock the two buffers 8 to the frame 1 after having first folded the other buffer 8 not equipped with the lock housing 18 and then the buffer 8 equipped with the lock housing 18 which blocks the other buffer 8 in the frame 1 by its hypotenuse wall 8d bearing on a tongue 8e of the other buffer 8 projecting transversely from its hypotenuse wall 8d.
  • Each triangulated buffer 8 is also equipped with two jacks 22, of which only one pair is visible for one of the buffers, and which makes it possible to witness the opening and the closing of the buffer 8.
  • the opposite ends of each of the assistance cylinders 22 are articulated respectively under the buffer 8 and the frame 1 below the hinge pins 13 of the hinges 12 in the same manner as each of the assistance cylinders 22 of the first embodiment so that it is unnecessary to repeat a detailed description.
  • each buffer 8 may have only one assistance cylinder 22.
  • Each of the triangulated pads 8 is also equipped with a self-locking arm 30 only visible for one of the pads 8 and identical to each self-locking arm 30 of the first embodiment.
  • the self-locking arm 30 of each pad 8 has one of its ends articulated on a pivot axis 31 carried by a lug 32 secured to the inner face of the pad 8 perpendicular thereto and close to the inner face of the pad.
  • the opposite end of the self-locking arm 30 is articulated on an axis that can slide along a guide groove, not shown, and identical to the 34 and the guide groove 35 described in the first embodiment for each self-locking arm 30.
  • the guide groove 35 is formed through a rectangular plate identical to the plate 36 of the first embodiment and which is perpendicularly fixed to and under the seat wall portion 7 adjacent to the side wall 2 of the frame 1 facing the wall 8f of the buffer 8 when it is in its closed position of the frame 1.
  • the guide groove of the corresponding end of the self-locking arm 30 of each pad 8 has at its end opposite its hinge hinges 12 a notch as for the first embodiment for receiving the pivot axis and sliding of the self-locking arm to block the buffer 8 at its raised position of clearance of the opening of the frame 1.
  • the self-locking arm 30 associated with each triangulated pad 8 is disposed in a plane perpendicular to the plane of the opening edge of the frame 1 and is located near the inner edge of the part of seat wall 7 adjacent to the side wall 2 of the frame 1.
  • the manhole of this second embodiment is also equipped with two stops respectively associated with the two triangulated pads 8.
  • Each of these stops is not represented in figure 14 but is identical to each stop 38 of the first embodiment and is fixed in the same manner as in this first embodiment.
  • the abutment associated with the self-locking arm 30 of the lock-lock pad 8 is disposed in the corner of the sub-frame 5 opposite to the hinge hinges 12 of this pad projecting into the opening of the frame 1 in the perpendicular direction. at the end wall 3 of the other pad substantially in the same plane as that containing the self-locking arm 30 of the lock-box pad 18.
  • the abutment associated with the pad 8 that does not comprise a lock casing is fixed in the corner of the frame 5 opposite to the hinge hinges of this pad, projecting into the opening of the frame 1 in the direction perpendicular to the wall of the casing.
  • end 3 of the buffer 8 comprising the lock housing 18 being located substantially in the same plane as the one passing through the self-locking arm 30 of the buffer 8 not having a lock housing.
  • the operator To bring the two triangulated panels 8 to their open position represented in figure 14 from their position of closing the opening of the frame 1, the operator first unlocks the bolt 19 of his keeper 20 by means of the key, not shown, of the lock housing 18 and the two pusher means exert respectively on the two studs 17 of the two buffers 8 a thrust force bringing their front edges 8b of the top 8 buffers to an open position allowing the operator to grasp and lift, if necessary using a tool, first of all the front edge 8b of the lock box buffer 8 to rotate, under the assistance of the jacks 22, the buffer 8 in its raised position clearance of the opening of the frame 1 to which it is securely blocked by the self-locking arm 30 as for the first embodiment.
  • the operator grasps and lifts the front edge 8b of the other triangulated pad 8 to rotate it, under the assistance of the cylinders 22, to its raised position of total clearance of the opening of the frame 1 to which the buffer 8 is blocked by the self-locking arm 30 associated with it.
  • the operator To return the two triangulated pads 8 to their closed position of the frame 1, the operator first disengages the lower end of the self-locking arm 30 from the notch of the corresponding guide groove associated with the pad 8 having no lock housing and toggles this buffer to its closed position under the assistance of the cylinders associated with this buffer until the end of the self-locking arm 13 bears on the corresponding stop to allow immobilize the buffer 8 to a half-open security position as for the buffer 8 shown in FIG. figure 5 of the first embodiment.
  • the operator climbs on the pad 8 to exert by his own weight a major force causing the pad 8 to move back to the end wall 3 of the frame 1 through the functional play of hinge hinges adjacent to this wall so that the front edge vertex 8b of the buffer is engaged at least partially in the corresponding corner opposite the articulation hinges defined by two of the side walls 2 and corresponding ends 3 with the stud 17 resting on the pusher means which is partially compressed by the own weight of the buffer.
  • the operator disengages the self-locking arm 30 from the other lock-lock pad 8 from the notch of its associated guide groove and toggles the pad to its closed position under the assistance of the cylinders 22 to the end of the self-locking arm 30 comes to bear on the corresponding stop so as to immobilize this buffer to a half-open security position.
  • the two pads 8 could be brought to their closed position by first tilting the pad 8 without lock housing to its half-open position, then the other pad 8 with lock housing 18 in its half-open position. Then, the operator, by its own weight, exerts a significant pressure on the pad 8 with lock case 18 so as to bring its hypotenuse wall 8d on the tongue 8e of the other pad 8 to drive the studs 17 into their respective diagonally opposite corners of the frame 1 by compressing the means forming a pusher and simultaneously backing the edges 8a of the two buffers towards the end walls 3 to ensure the closure of the frame 1 by the two buffers without their edges before 8b The two buffers 8 are then locked to the frame 1 by the bolt and striker assembly.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Sewage (AREA)
  • Superstructure Of Vehicle (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP11157178A 2010-03-15 2011-03-07 Schachtabdeckung Active EP2366835B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11157178T PL2366835T3 (pl) 2010-03-15 2011-03-07 Urządzenie sieci drogowej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1051838A FR2957367B1 (fr) 2010-03-15 2010-03-15 Dispositif de voirie, notamment regard de visite, a cadre et tampon a mouvement de recul relativement au cadre pour assurer la position de fermeture du tampon dans le cadre

Publications (2)

Publication Number Publication Date
EP2366835A1 true EP2366835A1 (de) 2011-09-21
EP2366835B1 EP2366835B1 (de) 2012-08-29

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EP11157178A Active EP2366835B1 (de) 2010-03-15 2011-03-07 Schachtabdeckung

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US (1) US20110222964A1 (de)
EP (1) EP2366835B1 (de)
CN (1) CN102191780B (de)
AU (1) AU2011201060B2 (de)
BR (1) BRPI1101329A2 (de)
CA (1) CA2733838A1 (de)
CO (1) CO6340181A1 (de)
EG (1) EG26473A (de)
ES (1) ES2394285T3 (de)
FR (1) FR2957367B1 (de)
MX (1) MX2011002768A (de)
NZ (1) NZ591687A (de)
PL (1) PL2366835T3 (de)
PT (1) PT2366835E (de)
RU (1) RU2526924C2 (de)
ZA (1) ZA201101931B (de)

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CN102951385B (zh) * 2012-11-09 2014-07-09 广西梧州制药（集团）股份有限公司 储罐人孔装置
CN103935657B (zh) * 2013-01-17 2016-05-04 武汉中粮食品科技有限公司 用于淀粉糖生产中的罐装置
GB201310227D0 (en) * 2013-06-07 2013-07-24 Wrekin Holdings Ltd Ground surface access assemblies
US9303441B2 (en) * 2014-01-31 2016-04-05 U.S.F. Fabrication, Inc. Access door with lift assist
FR3029947B1 (fr) * 2014-12-12 2017-01-27 Ej Emea Ensemble pour regard de chaussee comprenant un cadre, un couvercle et un kit permettant le montage articule du couvercle au cadre
GB2543642B (en) 2015-09-17 2021-01-20 Neenah Foundry Company Manhole cover assembly
GB2542506B (en) 2015-09-17 2021-03-24 Neenah Foundry Company Manhole cover assembly
CN106351261A (zh) * 2016-09-28 2017-01-25 芜湖市晨曦新型建材科技有限公司 一种新型下水道井盖异常报警装置
CN106836454B (zh) * 2016-12-22 2018-09-04 无锡市凯创自动化科技有限公司 窨井盖
US10233609B2 (en) * 2017-04-19 2019-03-19 Neenah Foundry Company Floating manhole cover assembly
CN107130640B (zh) * 2017-06-16 2019-06-07 国网河南鄢陵县供电公司 电缆检修井防盗盖板的启闭方法
CN107090858B (zh) * 2017-06-16 2019-06-07 国网河南鄢陵县供电公司 电缆检修井盖板隐藏式启闭装置
CN107461119B (zh) * 2017-07-20 2019-02-05 湖北三江航天万峰科技发展有限公司 一种孔口盖自动密封机构
CN109505312A (zh) * 2018-12-29 2019-03-22 上海尚地工程技术有限公司 一种侧滑式暗藏检修口
US11414829B2 (en) 2019-10-07 2022-08-16 Neenah Foundry Company Hybrid manhole cover
CN110939155A (zh) * 2019-12-30 2020-03-31 广州地铁设计研究院股份有限公司 基于装配式地下连续墙的装配式车站及其施工方法
US20220372815A1 (en) * 2021-05-19 2022-11-24 Gregory R. Meizinger Access door assembly and related methods

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WO2007128047A1 (en) * 2006-05-03 2007-11-15 R & S Grating A cover for a manhole
WO2008043972A2 (fr) * 2006-10-13 2008-04-17 Norinco Dispositif d'articulation d'un tampon ou couvercle à un cadre, notamment d'un regard de chaussée
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Also Published As

Publication number Publication date
FR2957367B1 (fr) 2012-03-02
EG26473A (en) 2013-11-26
ZA201101931B (en) 2011-11-30
FR2957367A1 (fr) 2011-09-16
NZ591687A (en) 2012-11-30
CN102191780A (zh) 2011-09-21
PL2366835T3 (pl) 2013-01-31
ES2394285T3 (es) 2013-01-30
RU2011109668A (ru) 2012-09-20
PT2366835E (pt) 2012-12-12
US20110222964A1 (en) 2011-09-15
BRPI1101329A2 (pt) 2012-09-04
AU2011201060B2 (en) 2015-02-12
AU2011201060A1 (en) 2011-09-29
RU2526924C2 (ru) 2014-08-27
CO6340181A1 (es) 2011-11-21
CN102191780B (zh) 2014-07-02
EP2366835B1 (de) 2012-08-29
CA2733838A1 (fr) 2011-09-15
MX2011002768A (es) 2011-09-14

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