EP0538115A1 - Deckel für Schacht oder dergleichen - Google Patents

Deckel für Schacht oder dergleichen Download PDF

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Publication number
EP0538115A1
EP0538115A1 EP92402795A EP92402795A EP0538115A1 EP 0538115 A1 EP0538115 A1 EP 0538115A1 EP 92402795 A EP92402795 A EP 92402795A EP 92402795 A EP92402795 A EP 92402795A EP 0538115 A1 EP0538115 A1 EP 0538115A1
Authority
EP
European Patent Office
Prior art keywords
frame
counter
pad
manhole
helical ramp
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.)
Withdrawn
Application number
EP92402795A
Other languages
English (en)
French (fr)
Inventor
Robert Jean Denis Moreau
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.)
A3C METAL
Original Assignee
A3C METAL
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 A3C METAL filed Critical A3C METAL
Publication of EP0538115A1 publication Critical patent/EP0538115A1/de
Withdrawn legal-status Critical Current

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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
    • E02D29/1427—Locking devices

Definitions

  • the present invention essentially relates to a manhole for pavement, sidewalk or other work.
  • Manholes have been known for a long time already comprising, in general, a circular frame which can be incorporated into the roadway and which can be closed by a cover or pad which is also circular.
  • These three support zones can be arranged on the frame and on the pad in such a way that they each constitute a helical ramp with which counter-stops can be associated.
  • the establishment of the buffer on the frame is carried out in the manner of a screwing until the counter-stops on the buffer come into blocking contact with the counter-stops on the frame.
  • the buffer has a relatively good stability once mounted on the frame, it is very difficult to extract it from the frame to open the eye. This is due to the fact that jamming by blocking the buffer in the frame obliges the operator to firstly perform an action to release the buffer, then an action to unscrew this buffer, which is particularly restrictive and painful because significant efforts to be made.
  • the object of the present invention is to remedy the above drawbacks in particular by proposing a manhole with buffer and frame which not only remains perfectly stable during a force exerted on the surface of the buffer in any place, but which poses no problem. nor any difficulty in extracting the pad from the frame, and this thanks to a special organization and configuration of the three bearing zones on the pad and on the frame.
  • the subject of the invention is a manhole cover for a floor or the like of a type comprising a circular frame which can be incorporated into the floor and which can be closed by a cover or pad also circular, the frame and the pad each being provided with three zones of 'support arranged substantially at 120 ° from each other, these three support zones constituting a helical ramp with which may be associated against stops, characterized in that one of the three support zones is constituted only a helical ramp, while each of the two other support zones comprises a helical ramp and an associated counter-stop located on the side of the support zone forming a single helical ramp, the two counter-stops having active faces tilted in opposite directions.
  • the right of intersection of the two planes respectively constituting the two active faces inclined in opposite directions of the two abovementioned counter-stops is substantially perpendicular to the perpendicular bisector of the triangle formed by the three support zones and starting from the support zone forming a single helical ramp .
  • the buffer and the frame comprise a relative positioning mark constituted for example by a lug and a notch cooperating with this lug, said lug and said notch being preferably located at the level of the support forming a single helical ramp.
  • Figure 1 is a perspective view of the frame and the buffer before mounting and forming the manhole according to this invention.
  • Figure 2 is a top plan view of the manhole, the pad being mounted in its frame.
  • Figure 3 is a sectional view along line III-III of Figure 2.
  • Figures 4, 5, 6 and 7 are sectional views respectively along lines IV-IV, VV, VI-VI, and VII-VII of Figure 2.
  • Figure 8 is a partial plan view of the manhole, similar to Figure 1, but showing an exemplary embodiment of the tracking system to facilitate mounting of the pad in its frame.
  • FIGS. 1 to 7 we see a manhole made up, as well known per se, of a circular frame 1 intended to be sealed in the roadway for example and capable of being closed by a removable pad 2.
  • the frame 1 comprises a sole 3 in the shape of a circular crown and which includes lights, holes or the like (not shown) for sealing the frame using bolts for example, or else which includes sealing tabs (not shown) to improve the connection of frame 1 to the edge of the hole in the roadway or other structure to receive said frame.
  • the crown 3 is surmounted by a cylindrical envelope 4 arranged concentrically and perpendicular to the crown 3, while being connected to the latter by reinforcing gussets 3a for example.
  • These three support zones each have a surface 5, 6, 7 respectively, forming a helical ramp.
  • the pad 2 carries on its underside three support zones Z′1, Z′2, Z′3 also arranged at 120 ° one on the other and forming the three vertices of the equilateral triangle T. These three support zones each have a surface 5a, 6a, 7a respectively in the form of a descending helical ramp.
  • the ramps 5a, 6a and 7a of the buffer 2 will cooperate respectively with the ramps 5, 6 and 7 in a descending helix of the frame 1, and this with rotation, at the like a screwing, buffer 2 in frame 1.
  • the support zones Z1 and Z′1 of the frame and of the buffer respectively only consist of a helical ramp 5, 5a, as it is clearly shown in FIG. 1.
  • the support zones Z2, Z3 of the circular frame 1, and Z′2, Z′3 of the buffer 2 they each have a support surface forming a helical ramp 6, 7 and 6a, 7a, to which is associated a counter-stop whose situation and orientation on the frame 1 and on the pad 2 are particular, as will be explained below.
  • the frame 1 comprises two counter-stops, namely a counter-stop 8 associated with the helical ramp 6, and a counter-stop 9 associated with the helical ramp 7, these two counter-stops comprising active faces 10, 11 respectively are inclined in opposite directions, as can be seen in FIG. 1.
  • the pad 2 has two counter-stops, namely a counter-stop 8a associated with the helical ramp 6a and a counter-stop 9a associated with the helical ramp 7a, these two counter-stops respectively having faces assets 10a, 11a which are inclined in opposite directions, as can still be seen clearly in FIG. 1 in particular.
  • the counter-stops 8, 9 on the frame 1 are respectively located on the side of the support zone Z1, that is to say between the zone Z1 and the helical ramp 6 for the counter-stop 8, and between the support zone Z1 and the helical ramp 7 for the counter-stop 9. It is the same for the corresponding counter-stops 8a and 9a of the buffer 2 which are both located on the side of the support zone Z′1, that is to say between this zone and the helical ramps 6a and 7a.
  • the straight line YY ′ materializing the intersection of the two planes respectively constituting the two active faces inclined in opposite directions 10, 11 (frame 1), and 10a, 11a (buffer 2) of the counter -stops 8-9, and 8a-9a is perpendicular to the perpendicular bisector M ( Figure 2) of the fictitious equilateral triangle T, starting from the support zone Z1, Z′1 formed by a single helical ramp 5, 5a.
  • Figure 2 the 90 ° angle formed by the line Y-Y ′ with the perpendicular bisector M.
  • the line YY ′ mentioned above passes through the center O of the gaze.
  • angle of the inclined active faces 10, 11 relative to the crown 3 of the frame 1, and the angle of the inclined active faces 10a, 11a relative to the plane of the pad 2 may be close to 25 °.
  • the slope of the helical ramps 5, 6, 7 of the frame 1 and the corresponding slope of the ramps 5a, 6a, 7a of the pad 2 will be defined according to the weight of the pad, so that, under the effect of its own weight, the buffer can develop sufficient forces to ensure contact between the active faces 10a, 11a against the corresponding ones 10 and 11 of the frame 1.
  • a lug or the like 12 capable of cooperating with a notch or the like 13 formed in the frame 1.
  • L lug 12 and the notch 13 constitute a positioning mark of the buffer 2 on the frame 1, this mark preferably being located at the level of the support zone Z1, Z′1 constituted by a single helical ramp 5, 5a on the frame and on the stamp.
  • angle of inclination of the counter-stops can be variable, just as the means for locating the positioning of the pad on the frame can be arbitrary. It is also possible to provide between frame and buffer a means facilitating the centering of the buffer, as shown at 14 in Figure 6.

Landscapes

  • 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)
  • Road Signs Or Road Markings (AREA)
EP92402795A 1991-10-15 1992-10-13 Deckel für Schacht oder dergleichen Withdrawn EP0538115A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9112694 1991-10-15
FR9112694A FR2682407B1 (fr) 1991-10-15 1991-10-15 Regard pour chaussee ou analogue.

Publications (1)

Publication Number Publication Date
EP0538115A1 true EP0538115A1 (de) 1993-04-21

Family

ID=9417929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402795A Withdrawn EP0538115A1 (de) 1991-10-15 1992-10-13 Deckel für Schacht oder dergleichen

Country Status (2)

Country Link
EP (1) EP0538115A1 (de)
FR (1) FR2682407B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0818578A1 (de) * 1996-07-11 1998-01-14 Von Roll Holding AG Abdeckung für eine Bodenöffnung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100404A (zh) * 2017-05-18 2017-08-29 大庆盈堃科技有限公司 防火防爆污油污水池活动盖板
CN112832294A (zh) * 2021-01-19 2021-05-25 大唐安途(江苏)信息技术有限公司 一种窨井盖实时智能监测装置及***

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB482517A (en) * 1936-09-30 1938-03-30 Frederick Turnbull Improvements in and relating to manhole and like covers
DE2049923A1 (de) * 1970-10-10 1972-04-13 Rheinstahl Ag, 4300 Essen Schachtabdeckung von der Form eines Sechseckes
FR2339023A2 (fr) * 1976-01-20 1977-08-19 Sambre & Meuse Usines Tampon pour regard circulaire et regard muni de ce tampon
FR2484498A1 (fr) * 1980-06-11 1981-12-18 Vandenesch Andre Regard a tampon auto-fermeur, a centrage et verrouillage automatiques
GB2147931A (en) * 1980-10-17 1985-05-22 Pont A Mousson Road inspection manhole

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB482517A (en) * 1936-09-30 1938-03-30 Frederick Turnbull Improvements in and relating to manhole and like covers
DE2049923A1 (de) * 1970-10-10 1972-04-13 Rheinstahl Ag, 4300 Essen Schachtabdeckung von der Form eines Sechseckes
FR2339023A2 (fr) * 1976-01-20 1977-08-19 Sambre & Meuse Usines Tampon pour regard circulaire et regard muni de ce tampon
FR2484498A1 (fr) * 1980-06-11 1981-12-18 Vandenesch Andre Regard a tampon auto-fermeur, a centrage et verrouillage automatiques
GB2147931A (en) * 1980-10-17 1985-05-22 Pont A Mousson Road inspection manhole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0818578A1 (de) * 1996-07-11 1998-01-14 Von Roll Holding AG Abdeckung für eine Bodenöffnung

Also Published As

Publication number Publication date
FR2682407B1 (fr) 1994-01-07
FR2682407A1 (fr) 1993-04-16

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