EP0289736A1 - Couvercle de chaussée - Google Patents

Couvercle de chaussée Download PDF

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Publication number
EP0289736A1
EP0289736A1 EP88103475A EP88103475A EP0289736A1 EP 0289736 A1 EP0289736 A1 EP 0289736A1 EP 88103475 A EP88103475 A EP 88103475A EP 88103475 A EP88103475 A EP 88103475A EP 0289736 A1 EP0289736 A1 EP 0289736A1
Authority
EP
European Patent Office
Prior art keywords
cover
polyurethane
frame
cast iron
gray cast
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
EP88103475A
Other languages
German (de)
English (en)
Other versions
EP0289736B1 (fr
Inventor
Hermann-Heinz Burger
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.)
Burger-Armaturen GmbH
Original Assignee
Burger-Armaturen GmbH
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 Burger-Armaturen GmbH filed Critical Burger-Armaturen GmbH
Priority to AT88103475T priority Critical patent/ATE62953T1/de
Publication of EP0289736A1 publication Critical patent/EP0289736A1/fr
Application granted granted Critical
Publication of EP0289736B1 publication Critical patent/EP0289736B1/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
    • E02D29/124—Shaft entirely made of synthetic material
    • 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 road cap with an essentially hollow cylindrical frame which is widened to form a ring on one end face to form a cover seat, and with a cover which is received by the cover seat with its jacket.
  • Street caps are used to make it easier to access shut-off devices, drainage and control pipes from gas or water pipes in roadways and sidewalks.
  • a street cap consists of an almost hollow cylindrical - slightly frustoconical - frame, which is widened in a ring at its upper end and has a shoulder, and a cover which is inserted into the ring-shaped part. At the opposite end, the frame can have a flange for the stable and pull-out-safe mounting in a roadway or a walkway. Street caps are the subject of several DIN standards (cf. DIN 4055 to 4059).
  • Street caps consist of gray cast iron (see DIN 4058) or of polyurethane foam (see DE-U-81 25 409).
  • gray cast iron street caps the fit between cover and frame is low, which leads to the known "rattling" of the cover. This is not the case with polyurethane road caps. Rather, the lid can be inserted into the frame with a precise fit. The lid does not rattle in the frame.
  • the replacement of gray cast iron street caps with those made of polyurethane requires the complete removal of the gray cast iron street cap, which then becomes scrap. In many cases, this is an unacceptable effort.
  • the invention seeks to remedy this.
  • the invention has for its object to provide a road cap in which the fit between the frame and cover is given without having to produce the entire road cap from polyurethane. According to the invention, this object is achieved in that the cover seat and / or the jacket are made of polyurethane.
  • Polyurethanes are linear chain molecules created by polyaddition of diisocyanates to diols and contain the urethane group. Polyurethane foams are formed during polyaddition when water and / or carboxylic acids are present (cf. Römpps Chemie-Lexikon Volume 5 1975 pp. 2774/2775).
  • the road cap according to the invention has the properties of the road cap made entirely of polyurethane with regard to the accuracy of fit between the lid and the frame. Like this, it can be used instead of the gray cast iron street cap. They are used in exchange: the gray cast iron road cap is removed and a road cap according to the invention is used in its place. The removed road cap made of gray cast iron is then machined, provided with a cup-like recess in the area of the cover seat in an embodiment of the invention, and this is filled with polyurethane. A frame designed in this way can then be exchanged for the next gray cast iron street cap.
  • the frame need not be removed; rather, the cover made entirely of gray cast iron can be replaced on the spot with the cover according to the invention. Street caps according to the invention with a cover seat and a jacket made of polyurethane can also be newly manufactured and used in the factory.
  • the street cap chosen as an exemplary embodiment has a frame 1 into which a cover 2 is inserted.
  • Both the frame 1 and the cover 2 are made of gray cast iron and polyurethane in the embodiment. It is possible to manufacture only the frame 1 or only the cover 2 from gray cast iron and polyurethane; the other part only made of gray cast iron. However, the latter does not lead fully to the advantages sought with the invention.
  • the frame 1 has an essentially hollow cylindrical, slightly conical middle part 11 made of gray cast iron.
  • a ring 13 is formed on the central part 11 to form a cover seat 3.
  • the cover seat 3 is formed by a cup-like recess 12 in the ring 13, which is filled with polyurethane.
  • the cover 2 rests in the cover seat 3.
  • a web 14 projecting into the cavity is formed on the inner wall of the central part 11 in relation to the recess 12, which is offset inward in the axial direction. With the help of the web 14, the cover 2 is captively attached to the frame 1.
  • the middle part 11 merges into a flange 15.
  • the cover 2 is formed from a disk-shaped middle piece 21 made of gray cast iron and an annular jacket 4 surrounding the middle piece 21 made of polyurethane.
  • the jacket 4 is supplemented to a collar 23. It is possible on the inside of the Cover 2 reinforcement ribs.
  • the outer surface 22 of the cover 2 lies flush with the end face 16 of the ring 13.
  • the cover 2 has a recess 24 in the center for receiving actuating and holding members.

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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Sewage (AREA)
EP88103475A 1987-05-04 1988-03-05 Couvercle de chaussée Expired - Lifetime EP0289736B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103475T ATE62953T1 (de) 1987-05-04 1988-03-05 Strassenkappe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8706349U 1987-05-04
DE8706349U DE8706349U1 (de) 1987-05-04 1987-05-04 Straßenkappe

Publications (2)

Publication Number Publication Date
EP0289736A1 true EP0289736A1 (fr) 1988-11-09
EP0289736B1 EP0289736B1 (fr) 1991-04-24

Family

ID=6807633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103475A Expired - Lifetime EP0289736B1 (fr) 1987-05-04 1988-03-05 Couvercle de chaussée

Country Status (3)

Country Link
EP (1) EP0289736B1 (fr)
AT (1) ATE62953T1 (fr)
DE (2) DE8706349U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2427426A (en) * 2005-06-21 2006-12-27 Clark Drain Ltd Access cover lid for a manhole
EP3763879A1 (fr) * 2019-07-11 2021-01-13 KSK Kunststoff-Straßenkappen GmbH Dispositif, de préférence d'encastrement, affleurant la surface de la chaussée

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819971B4 (de) * 1997-11-03 2006-08-24 Claus Neef Straßenkappendeckel
DE202011109998U1 (de) 2011-04-27 2012-09-21 Burger-Armaturen Gmbh Straßenkappe
DE102019210288A1 (de) * 2019-07-11 2021-01-14 KSK Kunststoff-Straßenkappen GmbH Vorrichtung zum vorzugsweise bündigen Einbau in die Straßen-/Fahrbahndecke

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH446210A (de) * 1966-04-05 1967-10-31 Von Roll Ag Schachtabdeckung und Verfahren zu deren Herstellung
DE2710922A1 (de) * 1977-03-12 1978-09-14 Streicher M Kg Schachtabdeckung
DE8125409U1 (de) * 1981-09-01 1982-01-07 Burger-Armaturen GmbH, 5840 Schwerte Strassenkappe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH446210A (de) * 1966-04-05 1967-10-31 Von Roll Ag Schachtabdeckung und Verfahren zu deren Herstellung
DE2710922A1 (de) * 1977-03-12 1978-09-14 Streicher M Kg Schachtabdeckung
DE8125409U1 (de) * 1981-09-01 1982-01-07 Burger-Armaturen GmbH, 5840 Schwerte Strassenkappe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2427426A (en) * 2005-06-21 2006-12-27 Clark Drain Ltd Access cover lid for a manhole
GB2427426B (en) * 2005-06-21 2010-01-06 Clark Drain Ltd Access cover lid for manholes
EP3763879A1 (fr) * 2019-07-11 2021-01-13 KSK Kunststoff-Straßenkappen GmbH Dispositif, de préférence d'encastrement, affleurant la surface de la chaussée

Also Published As

Publication number Publication date
DE8706349U1 (de) 1987-07-02
ATE62953T1 (de) 1991-05-15
DE3862512D1 (de) 1991-05-29
EP0289736B1 (fr) 1991-04-24

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