EP0427911A1 - Couvercle circulaire pour regards en fonte et béton avec ouvertures de ventilation - Google Patents

Couvercle circulaire pour regards en fonte et béton avec ouvertures de ventilation Download PDF

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Publication number
EP0427911A1
EP0427911A1 EP90111781A EP90111781A EP0427911A1 EP 0427911 A1 EP0427911 A1 EP 0427911A1 EP 90111781 A EP90111781 A EP 90111781A EP 90111781 A EP90111781 A EP 90111781A EP 0427911 A1 EP0427911 A1 EP 0427911A1
Authority
EP
European Patent Office
Prior art keywords
cover
cast iron
concrete
flange
ventilation opening
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
EP90111781A
Other languages
German (de)
English (en)
Other versions
EP0427911B1 (fr
Inventor
Dieter Dipl.-Ing. Kunz
Alfred Dipl.-Ing. Fuchs
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.)
ACO Ahlmann SE and Co KG
Original Assignee
Passavant Werke AG and Co KG
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 Passavant Werke AG and Co KG filed Critical Passavant Werke AG and Co KG
Publication of EP0427911A1 publication Critical patent/EP0427911A1/fr
Application granted granted Critical
Publication of EP0427911B1 publication Critical patent/EP0427911B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a manhole cover of the type specified in the preamble of claim 1.
  • a ring of circular ventilation openings arranged at equal angular intervals is provided, each of which is delimited by an annular wall shaped like a tower or a shaft from the bottom of the shell, which is connected to the circumferential wall of the cover by a radial rib is.
  • the concrete filling can extend anywhere up to the relatively thin cover peripheral wall.
  • This previously known cover already has a favorable ratio of the cast iron portion to the concrete portion, in particular since the concrete is also radially outward and in part fills areas of the lid shell lying over the contact surface.
  • the aim is to further reduce the cast iron content without impairing the strength of the lid.
  • a disadvantage of the known cover is that the surface of the concrete filling is not continuous, but is interrupted by the ring walls of the ventilation openings. As a result, the introduction and hardening of the concrete, in particular hardening by means of a compacting tool, is made more difficult. With less solidification, however, the contribution of the concrete filling to the strength of the cover is less, which must be compensated for by more extensive dimensioning of the cast iron content.
  • the well-known manhole cover lacks exposed cast iron surfaces of sufficient width on its top side to be able to affix the markings provided in accordance with the standard, such as manufacturer and product designation, as well as quality, standard and class information.
  • FR-OS 2 450 912 a circular manhole cover made of cast iron and concrete is known, the ventilation openings of which are not circumferential, but are arranged in two diametrically opposed segment-shaped groups, whereby they directly adjoin the peripheral wall of the cover limit and are separated from each other by radial ribs.
  • the cast iron content of this lid is, however, relatively high, not only because of the accumulation of cast iron material in the area of the grouped ventilation openings, but above all because the concrete filling is not exposed upwards, but is covered by a cast iron cover plate that is screwed to the bottom of the bowl is and forms a supporting part of the lid.
  • the concrete must be poured through a central bottom opening in the cover shell, which interrupts the continuous shell bottom and thus reduces its load-bearing capacity, and compacting the concrete with a pressing tool is not possible.
  • This lid also does not have a favorable attachment option for a removal tool. It is also disadvantageous with this cover that the ventilation openings are located radially so far outside that surface water running into them runs down the shaft wall and cannot get into a dirt trap which is suspended in the shaft and is at a distance from the shaft wall.
  • the invention has for its object to provide a manhole cover of the type mentioned in such a way that it is easy to insert and compact the concrete filling while maintaining a favorable or even further improved weight ratio between cast iron and concrete content possible and offers a good possibility of engagement for a removal tool.
  • the cast iron shell 1 of the lid shown has an upwardly concave dish bottom 3, which runs within the nominal diameter D of the lid with a substantially constant wall thickness and a substantially constant radius of curvature, that is to say spherically curved, and merges into the approximately perpendicular circumferential wall 5, which approximately has the same wall thickness as the shell bottom 3.
  • the slightly downwardly projecting bearing surface 7, which determines the nominal diameter D and is sufficient is broadly designed to optionally provide a dovetail groove for receiving an elastic damping insert 9 (cf. FIG. 3).
  • the shell 1 formed by the shell bottom 3 and the peripheral wall 5 contains a concrete filling 11 which is flush with the upper edge of the peripheral wall 5 and preferably consists of concrete compacted by shaking and pressing.
  • the shell bottom 3 can be provided on its inside with radially extending flat (indicated by dashed lines) stiffening ribs 13.
  • each ventilation opening 17 has the shape of an elongated hole, the center line of which can be concentrically curved to the center of the cover.
  • the dimensions, in particular the width of each ventilation opening 17 are chosen so that the safety standards are not exceeded.
  • each ventilation opening 17 can have a width of 28 mm and a length of 200 mm.
  • each ventilation opening 17 the peripheral wall 5 'is made so thick that its thickness corresponds to the width of the bearing surface 7. From this solid outer wall 5, a flange 19 projects inward on the top of the lid, which defines the outer boundary of the ventilation opening 17 det. The underside of the flange 19 between the wall regions of the shell bottom 3 delimiting it forms an insertion pocket for a lifting tool which can be inserted from above through the ventilation opening 17 and with which the lid can be gripped and lifted either by hand or with a lifting device.
  • the upper surface of the peripheral wall 5 'and / or the flange 19 can be designed as a labeling field, in which a label molded into the cast iron, for example with manufacturer and product designation, quality mark, as well as specification of standards and classes, can be provided .
  • the ventilation opening 17 is set radially inward from the circumference of the cover so that the ventilation opening is located within the diameter of a strainer basket arranged in the shaft below the cover.
  • an air gap of at least 30 mm width is provided between the outer edge of the basket and the inner edge of the shaft frame, which is necessary for effective ventilation of the shaft. Since the ventilation openings 17 are correspondingly offset radially inward, the surface water flowing in through them with the dirt contained therein nevertheless reaches the dirt trap.
  • a drip bead 23 prevents the water from flowing out along the underside of the flange 19 and thereby the Bypasses mud flaps. The drip bead 23 also prevents the lifting tool from slipping off.
  • the top of the concrete filling forms a uniform uninterrupted surface, so that it is very easy to compact the concrete with a pressing or vibrating compacting tool acting from above. It is also advantageous that the thickening of the circumferential wall 5 'above the support surface 7 prevents the support surface 7 from forming an undercut in the pocket 13 formed in the shell base 3. No casting core is therefore required to form the pocket 15 in the shell bottom.
  • Ventilation openings 17 can also be provided at corresponding angular intervals.
  • Each ventilation opening can also be designed as a straight, non-curved elongated hole.
  • labeling can also be provided on the upper side of the flange 19.

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)
  • Building Environments (AREA)
  • Toys (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP90111781A 1989-11-06 1990-06-21 Couvercle circulaire pour regards en fonte et béton avec ouvertures de ventilation Expired - Lifetime EP0427911B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3936929 1989-11-06
DE3936929A DE3936929C1 (fr) 1989-11-06 1989-11-06

Publications (2)

Publication Number Publication Date
EP0427911A1 true EP0427911A1 (fr) 1991-05-22
EP0427911B1 EP0427911B1 (fr) 1992-05-20

Family

ID=6392972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111781A Expired - Lifetime EP0427911B1 (fr) 1989-11-06 1990-06-21 Couvercle circulaire pour regards en fonte et béton avec ouvertures de ventilation

Country Status (7)

Country Link
EP (1) EP0427911B1 (fr)
AT (1) ATE76460T1 (fr)
DD (1) DD296724A5 (fr)
DE (2) DE3936929C1 (fr)
DK (1) DK0427911T3 (fr)
ES (1) ES2031399T3 (fr)
GR (1) GR3004662T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789097A1 (fr) * 1999-02-03 2000-08-04 Cahors App Elec Regard comportant un boitier etanche enterre, a event integre et ouverture rapide
FR2789098A1 (fr) * 1999-02-03 2000-08-04 Cahors App Elec Regard comportant un boitier etanche enterre a event integre et ouverture rapide
CN102409594A (zh) * 2011-09-16 2012-04-11 无锡市政设计研究院有限公司 碾压路面井周压实方法及压实用过渡井盖

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332968C2 (de) * 1993-09-28 1997-06-05 Buderus Guss Gmbh Runder Schachtdeckel
ES2169659B1 (es) * 1999-05-05 2003-11-01 Manuf D App Electr De Cahors S Registro que incluye una caja estanca enterrada, con respiradero integrado y de apertura rapida.
DE10351078A1 (de) * 2003-10-31 2005-07-28 betopur Kabeleinführungssysteme GmbH Belüftungsstutzen für einen Deckel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1364022A (fr) * 1963-05-06 1964-06-19 Perfectionnements aux tampons de regards de chaussée
DE2857528A1 (de) * 1978-08-02 1980-08-14 Passavant Werke Kreisrunder schachtdeckel aus gusseisen und beton

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE730158C (de) * 1940-01-27 1943-01-07 Hoernemann & Co Schachtdeckel aus gepresstem Stahlblech
AT228722B (de) * 1960-02-12 1963-08-12 Buderus Eisenwerk Schachtdeckel aus Gußeisen
AT277088B (de) * 1966-06-03 1969-12-10 Wallner & Neubert Schachtabdeckung
US4013374A (en) * 1975-10-16 1977-03-22 Passavant-Werke Michelbacher Hutte Cover for manhole structures
FR2335655A1 (fr) * 1975-12-18 1977-07-15 Pont A Mousson Tampon a remplissage, notamment pour regard de chaussee
DE8633386U1 (fr) * 1986-12-13 1988-01-14 Richter, Falk, 6477 Limeshain, De
DE8807335U1 (fr) * 1988-06-04 1988-07-21 Eichelmann, Horst, Dipl.-Ing., 6209 Aarbergen, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1364022A (fr) * 1963-05-06 1964-06-19 Perfectionnements aux tampons de regards de chaussée
DE2857528A1 (de) * 1978-08-02 1980-08-14 Passavant Werke Kreisrunder schachtdeckel aus gusseisen und beton

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789097A1 (fr) * 1999-02-03 2000-08-04 Cahors App Elec Regard comportant un boitier etanche enterre, a event integre et ouverture rapide
FR2789098A1 (fr) * 1999-02-03 2000-08-04 Cahors App Elec Regard comportant un boitier etanche enterre a event integre et ouverture rapide
CN102409594A (zh) * 2011-09-16 2012-04-11 无锡市政设计研究院有限公司 碾压路面井周压实方法及压实用过渡井盖

Also Published As

Publication number Publication date
DE59000131D1 (de) 1992-06-25
ES2031399T3 (es) 1992-12-01
DE3936929C1 (fr) 1991-04-25
ATE76460T1 (de) 1992-06-15
EP0427911B1 (fr) 1992-05-20
DD296724A5 (de) 1991-12-12
DK0427911T3 (da) 1992-08-24
GR3004662T3 (fr) 1993-04-28

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