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EP0743400B1 - Height-adjustable manhole cover - Google Patents

Height-adjustable manhole cover Download PDF

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Publication number
EP0743400B1
EP0743400B1 EP96810276A EP96810276A EP0743400B1 EP 0743400 B1 EP0743400 B1 EP 0743400B1 EP 96810276 A EP96810276 A EP 96810276A EP 96810276 A EP96810276 A EP 96810276A EP 0743400 B1 EP0743400 B1 EP 0743400B1
Authority
EP
European Patent Office
Prior art keywords
frame
height
holding
shaft cover
elastic
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.)
Expired - Lifetime
Application number
EP96810276A
Other languages
German (de)
French (fr)
Other versions
EP0743400A1 (en
Inventor
François Galvanetto
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.)
Von Roll Holding AG
Original Assignee
Von Roll Holding AG
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 Von Roll Holding AG filed Critical Von Roll Holding AG
Publication of EP0743400A1 publication Critical patent/EP0743400A1/en
Application granted granted Critical
Publication of EP0743400B1 publication Critical patent/EP0743400B1/en
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
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination

Definitions

  • the invention relates to a height-adjustable manhole cover according to the preamble of the independent claim 1.
  • Known manhole covers for safe covering from in the publicly accessible area, especially on Shafts located on the street serve have a metallic Frame on, directly or through a Auxiliary frame is supported on a stationary concrete base and in the radial direction at least partially of concrete base or subframe parts is surrounded. The one with a radial provided inwardly projecting support ring is used for Inclusion of a metallic cover.
  • the top edges of The frame and lid should be accessible and accessible The surrounding zone of the manhole cover must be flush.
  • a disadvantage of this method is that the steel bolts in their raised position, in which the frame is not yet concreted by the adjacent one Concrete is not kept enough and the frame slide down or take an inclined position can.
  • the frame can also tilt when pulled up, the steel bolts given the considerable Bend moments and only the oblique frame back into the desired one with great effort Street level flush location can be brought.
  • Fig. 1 shows an annularly installed in the earth region E.
  • Concrete base 1 with one for supporting a frame 2 serving ring shoulder 3.
  • Lid 4 On the frame 2 lies Lid 4.
  • the upper edges of frame 2 and lid 4 are with street level 5 flush.
  • the circumference elastic holding cushion 6 Between the concrete base 1 and the frame 2 are at least two places of the circumference elastic holding cushion 6 a wear-resistant material.
  • These pillows 6 consist for example of a thermoplastic Elastomer, such as natural or synthetic rubber, that easily stick to the concrete base wall, can be vulcanized or concreted on. Other materials can also be used, but the holding cushions should in any case opposite the adjacent frame 2, i.e. its back, labeled A, is an elastic one Have back pressure, the required elasticity does not necessarily have to be given by the pillow material, so that a formula elasticity given by the pillow shape may be sufficient for the intended purpose.
  • the frame is symmetrical at three on the circumference distributed places with shoulder runners 7, at which a known lifting device attacks the frame around the required measure a (Fig. 1) to the new street level to raise (Fig. 2).
  • the holding cushions 6 in the area of the approach runners 7 arranged. 5 shows a rectangular frame, adjoin the two narrow sides of the holding cushion 8 which in this case over the entire length of the narrow sides extend.
  • the frame 2 for the purpose of alignment to the new street level from its lower position according to Fig. 1 in the 2 raised, the frame outer surface slides A along the support cushions 6 and 8 and the frame 2 can thanks to the elastic pressure of the holding cushion 6 in any intermediate layer can be positioned and is in this position thanks to the elastic restoring force of the cushion 6 or 8 held securely (Fig. 2). Any canting can be with this arrangement thanks to the elastic Compensate the deformability of the support cushion relatively easily.
  • the holding cushions 6 are advantageously in the area of Support skids 7 arranged.
  • FIG Frame 2 on its downwardly projecting flange 10 with a outwardly projecting crowning 9, which the holding cushion 6 pressed together at the relevant point and so that the mounting of the frame is still improved.
  • the holding pillow 6 can on their surface facing the frame 2 also a profiling that further improves the mounting exhibit.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Road Paving Structures (AREA)
  • Sewing Machines And Sewing (AREA)
  • Fluid-Damping Devices (AREA)
  • Soil Working Implements (AREA)

Abstract

The drain cover (4) is held level with the road surface in a lipped metal ring (2) which is itself held over a concrete support base ring (1). Elastomer padding (6) between the metal ring and the base ring hold the metal ring while a concrete levelling layer (10) is placed under the metal ring. The elastomer pads are positioned around the base ring and can be made of a thermoplastic material. When the road surface is raised the metal ring is raised to align the top edge with the new road level and is held by the elastomer padding while additional levelling concrete is travelled under the metal ring.

Description

Die Erfindung betrifft eine höhenverstellbare Schachtabdeckung gemäss dem Oberbegriff des unabhängigen Patentanspruchs 1.The invention relates to a height-adjustable manhole cover according to the preamble of the independent claim 1.

Bekannte Schachtabdeckungen, die zur sicheren Überdeckung von im öffentlich zugänglichen Bereich, insbesondere auf Strassen befindlichen Schächten dienen, weisen einen metallischen Rahmen auf, der sich direkt oder über einen Hilfsrahmen auf einen ortsfesten Betonsockel abstützt und in radialer Richtung mindestens teilweise von Betonsockel- oder Hilfsrahmenteilen umgeben ist. Der mit einem radial nach innen ragenden Stützring versehene Rahmen dient zur Aufnahme eines metallischen Deckels. Die Oberkanten von Rahmen und Deckel sollen mit der begeh- und befahrbaren Umgebungszone der Schachtabdeckung bündig sein.Known manhole covers for safe covering from in the publicly accessible area, especially on Shafts located on the street serve have a metallic Frame on, directly or through a Auxiliary frame is supported on a stationary concrete base and in the radial direction at least partially of concrete base or subframe parts is surrounded. The one with a radial provided inwardly projecting support ring is used for Inclusion of a metallic cover. The top edges of The frame and lid should be accessible and accessible The surrounding zone of the manhole cover must be flush.

Bei der Neuerstellung bzw. Ausbesserung von Strassen ergibt sich das Problem, dass das Strassenniveau, nachdem sich der neue bzw. der ausgebesserte Belag abgesetzt hat, angehoben und die Lage der Schachtabdeckung dem neuen Niveau angepasst werden muss. Zu diesem Zwecke ist es beispielsweise durch die CH-PS 657 170 bekannt, an der Unterseite des Rahmens mehrere in Umfangsrichtung symmetrisch verteilte Stahlbolzen anzubringen, die in den Rahmen eingeschraubt sind und nach unten in den Betonsockel hineinragen. Soll die Schachtabdeckung nun dem neuen Strassenniveau angepasst werden, so wird der Rahmen mittels einer Spezialvorrichtung, die beispielsweise in der CH-PS 665 863 beschrieben ist, angehoben. Dabei werden die am Rahmen verschraubten Stahlbolzen um das Mass des Rahmenhubes innerhalb des Sockelbetons mit nach oben gezogen und halten den Rahmen aufgrund der vom Sockelbeton ausgeübten Reibung auf dem oberen Niveau. Nun kann der dadurch zwischen dem Rahmen und dem Betonsockel entstandene Freiraum mit Beton oder Mörtel aufgefüllt werden, womit der Rahmen in seiner neuen Lage wiederum sicher abgestützt ist.When creating or repairing roads results the problem that the street level after the new or repaired covering has raised and adjusted the position of the manhole cover to the new level must become. For this purpose, for example known from CH-PS 657 170, at the bottom of the frame several distributed symmetrically in the circumferential direction To attach steel bolts that are screwed into the frame and protrude down into the concrete base. Should the manhole cover has now been adapted to the new street level the frame using a special device, which are described for example in CH-PS 665 863 is raised. The screws are screwed to the frame Steel bolts around the dimension of the frame stroke within the Base concrete pulled up and hold the frame due to the friction exerted by the base concrete on the upper level. Now the can between the frame and the free space created on the concrete base with concrete or mortar be filled, with which the frame in its new location in turn is securely supported.

Ein Nachteil dieses Verfahrens besteht allerdings darin, dass die Stahlbolzen in ihrer angehobenen Lage, in welcher der Rahmen noch nicht unterbetoniert ist, durch den angrenzenden Beton nicht genügend gehalten werden und der Rahmen nach unten abrutschen oder eine geneigte Lage einnehmen kann. Auch kann sich der Rahmen beim Hochziehen verkanten, wobei sich die Stahlbolzen angesichts der beträchtlichen Biegemomente verbiegen und der schrägliegende Rahmen nur mit grossem Aufwand wieder in die gewünschte, mit dem Strassenniveau bündige Lage gebracht werden kann.However, a disadvantage of this method is that that the steel bolts in their raised position, in which the frame is not yet concreted by the adjacent one Concrete is not kept enough and the frame slide down or take an inclined position can. The frame can also tilt when pulled up, the steel bolts given the considerable Bend moments and only the oblique frame back into the desired one with great effort Street level flush location can be brought.

Es sind verschiedene Ansätze bekannt, um das sichere und exakte Anheben des Rahmens zu gewährleisten. So beschreiben beispielsweise die CH-PS 670 847 und 674 231 Vorrichtungen, die den Rahmen auf Gewindespindeln abstützen und dadurch anzuheben gestatten. Diese bekannten Vorrichtungen bedingen jedoch eine relativ aufwendige Rahmenkonstruktion und können das Verkanten bzw. Verklemmen des Rahmens beim Anheben nicht mit Sicherheit verhindern. Auch besteht die Gefahr, dass die Spindelgewinde im Laufe der Jahre durch Korrosion unbrauchbar werden. Various approaches are known to make this safe and to ensure exact lifting of the frame. Describe like this for example CH-PS 670 847 and 674 231 devices, which support the frame on threaded spindles and thereby allow to raise. These known devices require however, a relatively complex frame construction and can tilting or jamming of the frame when lifting do not prevent with certainty. There is also a risk that the spindle thread through corrosion over the years become unusable.

In der US-A-4 673 310 sind Schachtabdeckungen beschrieben, bei denen zwischen Rahmen und Sockel über den ganzen Rahmenumfang ein elastisches Material schichtartig angeordnet ist, um die Reibung zwischen Rahmen und Sockel beim Hochheben des Rahmens zu verringern und Unebenheiten im Rahmen und im Sockel auszugleichen. Das elastische Material ist nur am Rahmen, nur am Sockel oder an beiden angebracht. Bei geeigneter Wahl des elastischen Materials und nicht zu grossen Hebedistanzen kann der Rahmen allein durch die Reibung zwischen dem elastischen Material und dem Sockel oder Rahmen bzw. zwischen den beiden Schichten des elastischen Materials in jeder erforderlichen Höhenlage gehalten werden. Durch die schichtartige, relativ dünne Anordnung des elastischen Materials über den ganzen Rahmenumfang bleibt aber das Problem des Verkantens bzw. Verklemmens des Rahmens beim Anheben bestehen.In US-A-4,673,310 manhole covers are described where between the frame and base over the entire frame circumference an elastic material arranged in layers is to reduce the friction between the frame and base when lifting reduce the frame and bumps in the frame and balance in the base. The elastic material is only attached to the frame, only to the base or to both. At appropriate choice of elastic material and not too The frame can handle large lifting distances solely through friction between the elastic material and the base or Frame or between the two layers of elastic Material can be kept at any required altitude. Due to the layered, relatively thin arrangement of the elastic material remains over the entire circumference of the frame but the problem of tilting or jamming the frame exist when lifting.

Es ist daher die Aufgabe der vorliegenden Erfindung, eine Schachtabdeckung der eingangs definierten Art vorzuschlagen, welche die erwähnten Nachteile der bekannten Konstruktionen vermeidet und insbesondere ein unkompliziertes Anheben des Rahmens gestattet, der auch in der angehobenen Position bis zum Einbringen des Betons sicher gehalten sein soll. Auch soll es die erfindungsgemässe Schachtabdeckung gestatten, beim Anheben des Rahmens Verkantungen zu vermeiden bzw. auf einfache Weise auszugleichen.It is therefore the object of the present invention, a To propose manhole covers of the type defined at the outset, which the mentioned disadvantages of the known constructions avoids and in particular an uncomplicated lifting of the frame, which is also in the raised position be held securely until the concrete is poured should. It is also intended to cover the manhole cover according to the invention allow to avoid canting when lifting the frame or to compensate in a simple manner.

Die Lösung dieser Aufgabe ergibt sich aus dem kennzeichnenden Teil des unabhängigen Patentanspruchs 1. The solution to this problem arises from the characteristic Part of independent claim 1.

Nachstehend werden einige Ausführungsbeispiele der erfindungsgemässen Schachtabdeckung unter Bezugnahme auf die beiliegende Zeichnung beschrieben.Below are some embodiments of the inventive Manhole cover with reference to the enclosed drawing described.

Es zeigen:

Fig. 1
eine Schnittdarstellung des Randbereichs eines im Betonsockel angeordneten Rahmens vor dem Anheben des Strassenniveaus;
Fig. 2
den gleichen Rahmen in angehobener Position;
Fig. 3
eine weitere Ausführungsform und
Fig. 4 und 5
sind zwei Ansichten von unten zweier unterschiedlicher Rahmenformen.
Show it:
Fig. 1
a sectional view of the edge region of a frame arranged in the concrete base before raising the street level;
Fig. 2
the same frame in the raised position;
Fig. 3
a further embodiment and
4 and 5
are two bottom views of two different frame shapes.

Fig. 1 zeigt einen im Erdbereich E fest installierten ringförmigen Betonsockel 1 mit einer zur Abstützung eines Rahmens 2 dienenden Ringschulter 3. Auf dem Rahmen 2 liegt ein Deckel 4. Die Oberkanten von Rahmen 2 und Deckel 4 sind mit dem Strassenniveau 5 bündig.Fig. 1 shows an annularly installed in the earth region E. Concrete base 1 with one for supporting a frame 2 serving ring shoulder 3. On the frame 2 lies Lid 4. The upper edges of frame 2 and lid 4 are with street level 5 flush.

Zwischen dem Betonsockel 1 und dem Rahmen 2 sind an mindestens zwei Stellen des Umfangs elastische Haltekissen 6 aus einem verschleissfesten Material eingesetzt. Diese Haltekissen 6 bestehen beispielsweise aus einem thermoplastischen Elastomer, wie natürlichem oder synthetischem Kautschuk, das sich an der Betonsockelwand problemlos ankleben, aufvulkanisieren oder aufbetonieren lässt. Andere Materialien sind ebenfalls verwendbar, doch sollten die Haltekissen in jedem Falle gegenüber dem anliegenden Rahmen 2, d.h. dessen mit A bezeichneter Rückseite, einen elastischen Gegendruck aufweisen, wobei die erforderliche Elastizität nicht unbedingt durch das Kissenmaterial gegeben sein muss, so dass auch eine durch die Kissenform gegebene Formelastizität für den angestrebten Zweck ausreichen kann.Between the concrete base 1 and the frame 2 are at least two places of the circumference elastic holding cushion 6 a wear-resistant material. These pillows 6 consist for example of a thermoplastic Elastomer, such as natural or synthetic rubber, that easily stick to the concrete base wall, can be vulcanized or concreted on. Other materials can also be used, but the holding cushions should in any case opposite the adjacent frame 2, i.e. its back, labeled A, is an elastic one Have back pressure, the required elasticity does not necessarily have to be given by the pillow material, so that a formula elasticity given by the pillow shape may be sufficient for the intended purpose.

Gemäss Fig. 4 ist der Rahmen an drei am Umfang symmetrisch verteilten Stellen mit Ansatzkufen 7 versehen, an welchen eine bekannte Hubvorrichtung angreift, um den Rahmen um das erforderliche Mass a (Fig. 1) auf das neue Strassenniveau anzuheben (Fig. 2). Gemäss der in Fig. 4 gezeigten Ausführungsform sind die Haltekissen 6 im Bereich der Ansatzkufen 7 angeordnet. Fig. 5 zeigt einen rechteckförmigen Rahmen, an dessen beide Schmalseiten Haltekissen 8 angrenzen, die sich in diesem Falle über die gesamte Länge der Schmalseiten erstrecken.4, the frame is symmetrical at three on the circumference distributed places with shoulder runners 7, at which a known lifting device attacks the frame around the required measure a (Fig. 1) to the new street level to raise (Fig. 2). According to the embodiment shown in FIG. 4 are the holding cushions 6 in the area of the approach runners 7 arranged. 5 shows a rectangular frame, adjoin the two narrow sides of the holding cushion 8 which in this case over the entire length of the narrow sides extend.

Wird nun der Rahmen 2 zwecks Angleichung an das neue Strassenniveau von seiner unteren Position nach Fig. 1 in die obere nach Fig. 2 angehoben, so gleitet die Rahmen-Aussenfläche A an den Haltekissen 6 bzw. 8 entlang und der Rahmen 2 kann dank der elastischen Pressung der Haltekissen 6 in jeder beliebigen Zwischenlage positioniert werden und ist in dieser Lage dank der elastischen Rückstellkraft der Haltekissen 6 bzw. 8 sicher gehalten (Fig. 2). Etwaige Verkantungen lassen sich bei dieser Anordnung dank der elastischen Verformbarkeit der Haltekissen relativ leicht ausgleichen. Now the frame 2 for the purpose of alignment to the new street level from its lower position according to Fig. 1 in the 2 raised, the frame outer surface slides A along the support cushions 6 and 8 and the frame 2 can thanks to the elastic pressure of the holding cushion 6 in any intermediate layer can be positioned and is in this position thanks to the elastic restoring force of the cushion 6 or 8 held securely (Fig. 2). Any canting can be with this arrangement thanks to the elastic Compensate the deformability of the support cushion relatively easily.

Nachdem der Rahmen 2 die in Fig. 2 gezeigte neue Höhenposition erreicht hat, kann in bekannter Weise die den Rahmen dauerhaft abstützende Betonfüllung 10 eingebracht werden.After the frame 2 the new height position shown in Fig. 2 has reached the frame in a known manner permanently supporting concrete filling 10 are introduced.

Die Haltekissen 6 sind vorteilhafterweise im Bereich der Stützkufen 7 angeordnet.The holding cushions 6 are advantageously in the area of Support skids 7 arranged.

Gemäss der in Fig. 3 gezeigten Ausführungsvariante ist der Rahmen 2 an seinem nach unten ragenden Flansch 10 mit einer nach aussen ragenden Bombierung 9 versehen, welche das Haltekissen 6 an der betreffenden Stelle zusammenpresst und damit die Halterung des Rahmens noch verbessert. Die Haltekissen 6 können auf ihrer dem Rahmen 2 zugewandten Fläche auch eine die Halterung weiter verbessernde Profilierung aufweisen.According to the embodiment variant shown in FIG Frame 2 on its downwardly projecting flange 10 with a outwardly projecting crowning 9, which the holding cushion 6 pressed together at the relevant point and so that the mounting of the frame is still improved. The holding pillow 6 can on their surface facing the frame 2 also a profiling that further improves the mounting exhibit.

Claims (6)

  1. A height-adjustable shaft cover with metallic frame (2) which supports a lid (4), this frame being supported directly or via an auxiliary frame on a concrete base (1), and being at least partially surrounded in the radial direction by concrete base or auxiliary frame parts, wherein at least one elastic element is disposed between the frame (2) and the aforementioned concrete base or auxiliary frame parts which guarantees infinitely-variable height adjustment of the frame (2) and its secure, elastic holding at any desired height, characterised in that an elastic element is provided in at least two places between the frame (2) and the aforementioned concrete base or auxiliary frame parts, wherein the elastic element is configured as an elastic holding cushion (6, 8) and guarantees infinitely-variable height and inclination adjustment of the frame (2).
  2. A height-adjustable shaft cover according to claim 1, characterised in that the holding cushions (6) at least predominantly comprise an elastic material.
  3. A height-adjustable shaft cover according to claim 2, characterised in that the elastic material is a thermoplastic elastomer.
  4. A height-adjustable shaft cover according to claim 1, characterised in that the holding cushions (6) have a form elasticity which is dependent on their shape.
  5. A height-adjustable shaft cover according to one of claims 1 to 4, characterised in that the holding cushions (6) are disposed in the area of the supporting guides (7) provided for application of a lifting apparatus to the frame (2).
  6. A height-adjustable shaft cover according to one of claims 1 to 5, characterised in that the frame (2) has a convexity (9), directed outwards against the holding cushion(s), in its lower circumferential area for the purpose of improving the elastic holding.
EP96810276A 1995-05-19 1996-04-30 Height-adjustable manhole cover Expired - Lifetime EP0743400B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1493/95 1995-05-19
CH149395 1995-05-19
CH01493/95A CH690444A5 (en) 1995-05-19 1995-05-19 Height-adjustable shaft cover.

Publications (2)

Publication Number Publication Date
EP0743400A1 EP0743400A1 (en) 1996-11-20
EP0743400B1 true EP0743400B1 (en) 2000-10-25

Family

ID=4211749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810276A Expired - Lifetime EP0743400B1 (en) 1995-05-19 1996-04-30 Height-adjustable manhole cover

Country Status (5)

Country Link
EP (1) EP0743400B1 (en)
AT (1) ATE197181T1 (en)
CH (1) CH690444A5 (en)
DE (1) DE59606033D1 (en)
DK (1) DK0743400T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA955444A (en) * 1972-05-17 1974-10-01 Andre Binette Trou d'homme
US4281944A (en) * 1979-09-10 1981-08-04 Bowman Harold M Manhole cover support
US4673310A (en) * 1983-11-14 1987-06-16 E.L. LeBaron Foundry Co. Method of and apparatus for adjustably leveling manhole covers, grates and the like
DE4105835A1 (en) * 1991-02-25 1992-09-03 Bernhard Kessel SUPPORTING DEVICE FOR CHAMBER ELEMENTS

Also Published As

Publication number Publication date
EP0743400A1 (en) 1996-11-20
ATE197181T1 (en) 2000-11-15
CH690444A5 (en) 2000-09-15
DK0743400T3 (en) 2001-02-05
DE59606033D1 (en) 2000-11-30

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