CH683435A5 - Temporary cover for manhole in roadway - provides protection during building work and has strong lightweight thin corrugated outer section - Google Patents

Temporary cover for manhole in roadway - provides protection during building work and has strong lightweight thin corrugated outer section Download PDF

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Publication number
CH683435A5
CH683435A5 CH144791A CH144791A CH683435A5 CH 683435 A5 CH683435 A5 CH 683435A5 CH 144791 A CH144791 A CH 144791A CH 144791 A CH144791 A CH 144791A CH 683435 A5 CH683435 A5 CH 683435A5
Authority
CH
Switzerland
Prior art keywords
cover
manhole
roadway
manhole cover
area
Prior art date
Application number
CH144791A
Other languages
German (de)
Inventor
Ferdinand Kofel
Original Assignee
Ferdinand Kofel
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 Ferdinand Kofel filed Critical Ferdinand Kofel
Priority to CH144791A priority Critical patent/CH683435A5/en
Publication of CH683435A5 publication Critical patent/CH683435A5/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14Covers for manholes or the like; Frames for covers

Abstract

The cover is for a manhole or shaft extending down into a roadway. It has a thick central portion (1) incorporating a small aperture (5) to allow insertion of a hook for picking up the cover. The outer portion (3) of the cover is of thin corrugated section, with straight raised and depressed trapezoidal sections joined by angled portions. The cover has a thin, flat outer rim (2) joined to the corrugated portion by sloping portions with cutouts (4) acing as centering notches. USE/ADVANTAGE - Temporary cover for manhole in roadway provides protection during building work.

Description

1 1

CH 683 435 A5 CH 683 435 A5

2 2nd

Beschreibung description

Die Erfindung betrifft einen Schachtdeckel zum provisorischen Abdecken eines Strassenschachtes. Er kann z.B. verwendet werden: The invention relates to a manhole cover for the provisional covering of a street shaft. He can e.g. be used:

a. als provisorische Abdeckung während der Bauphase; a. as a temporary cover during the construction phase;

b. als provisorischer Hilfsdeckel während des Schwarzbelagseinbaues, wenn der Originaldeckel kein ovales Pickelloch aufweist oder der verlangten Negativbelastung (Zug nach oben) nicht standhalten kann; b. as a temporary auxiliary cover when installing the black coating if the original cover does not have an oval pimple hole or cannot withstand the required negative load (upward pull);

c. als tieferliegender Hilfsdeckel bei Belagsabfrä-sungen, um genügend Frästiefe zu erreichen. c. as a lower-lying auxiliary cover when milling the base in order to achieve sufficient milling depth.

Im Vergleich mit einem gleich stark belastbaren Normalgussdeckel soll er in Leichtbauweise durch die besondere Formgebung eine ebenbürtige Tragfähigkeit von oben und von unten besitzen. Zur Lösung dieser Aufgabe weist der Schachtdeckel die Merkmale gemäss Anspruch 1 auf. Durch Verwendung besserer Gussqualitäten kann der Deckel speziell im Zwischenbereich und Randbereich leichter dimensioniert werden. In comparison to a normal cast lid with the same load capacity, its lightweight design means that it has an equal load-bearing capacity from above and below due to its special shape. To achieve this object, the manhole cover has the features according to claim 1. By using better casting qualities, the lid can be dimensioned more easily, especially in the intermediate area and edge area.

Diese Leichtbauweise darf dem normalen Strassenverkehr nicht ohne Zusatzbaiast ausgesetzt werden, da ein leichter Deckel bei der schnellen Überfahrung herausspringen könnte. Die im Zwischenbereich vorhandenen Segmentaussparungen machen jeden Laien darauf aufmerksam, dass diese Abdek-kung entweder umfahren werden muss (durch Absperrung signalisiert) oder aber mit einem Füllstoff wie Schwarzbelag oder Beton bis auf die bestehende Fahrbahnfläche aufgefüllt werden muss. This lightweight construction must not be exposed to normal road traffic without an additional bast, since a light cover could pop out during the quick passage. The segment recesses in the intermediate area make every layperson aware that this cover either has to be bypassed (signaled by a barrier) or that it has to be filled up with a filler such as black coating or concrete to the existing road surface.

Ein Ausführungsbeispiel des Schachtdeckels wird nachfolgend anhand der Zeichnungen näher erläutert. An embodiment of the manhole cover is explained in more detail below with reference to the drawings.

Es zeigen: Show it:

Fig. 1 einen Axialschnitt durch den Schachtdek-kel gemäss der Linie A-A in Fig. 2. 1 shows an axial section through the manhole cover according to line A-A in FIG. 2.

Fig. 2 eine Draufsicht auf einen Viertel des Dek-kels Fig. 2 is a plan view of a quarter of the lid

Fig. 3 eine Ansicht von unten Fig. 3 is a bottom view

Fig. 4 einen Teilquerschnitt gemäss der Linie B-B in Fig. 2. 4 shows a partial cross section along the line B-B in FIG. 2.

Der gegossene Schachtdeckel weist einen Zentrumsbereich 1 auf, in welchem der Schachtdeckel die grösste Wandstärke besitzt, welche gegen den Mittelbereich abnimmt. Ferner einen Randbereich 2 mit etwa 1/5 der Wandstärke des Zentrumsbereiches und dazwischen einen Mittelbereich 3 mit oben und unten so tiefen abwechselnden Aussparungen, womit eine noch geringere Wandstärke besteht als im Aussenwandbereich. The cast manhole cover has a center area 1, in which the manhole cover has the greatest wall thickness, which decreases towards the central area. Furthermore, an edge area 2 with about 1/5 of the wall thickness of the center area and in between a middle area 3 with alternating recesses so deep at the top and bottom, whereby there is an even smaller wall thickness than in the outer wall area.

Dieser Mittelbereich ist oben und unten segmentflächig bündig mit dem Zentrumsbereich. This middle area is flush with the center area at the top and bottom of the segment.

Der Zentrumsbereich weist in der Mitte ein den Deckel durchsetzendes, ovales Pickelloch auf, um den Deckel mittels eines Hebegeätes vom Schacht abheben zu können, das von unten mit einer Einzellast angreift, welche grösser ist als die von oben wirkende Verkehrslast. The center area has an oval pick hole through the lid in order to be able to lift the lid off the shaft by means of a lifting device, which acts from below with a single load that is greater than the traffic load acting from above.

Claims (5)

PatentansprücheClaims 1. Schachtdeckel zum provisorischen Abdecken eines Strassenschachtes, dadurch gekennzeichnet, dass der runde Deckel, in Umfangsrichtung betrachtet, zwischen einem massiven sich nach aussen verjüngenden Zentrumsbereich (1) und einem dünneren Randbereich (2) einen unten und oben mit abwechselnden, segmentförmigen Aussparungen mit trapezförmigem Querschnitt versehenen Zwischenbereich (3) aufweist.1. Manhole cover for the provisional covering of a street shaft, characterized in that the round cover, viewed in the circumferential direction, between a massive tapering center area (1) and a thinner edge area (2) one below and above with alternating, segment-shaped recesses with a trapezoidal one Cross section provided intermediate region (3). 2. Schachtdeckel nach Anspruch 1, dadurch gekennzeichnet, dass der dünnere Randbereich, quer zum Deckel betrachtet, aussermittig angeordnet ist, so dass bei wechselseitiger Verwendung, gemessen von der Auflagefläche des Randbereiches bis zur Deckeloberkante, zwei verschiedene Deckelhöhen bestehen.2. Manhole cover according to claim 1, characterized in that the thinner edge region, viewed transversely to the cover, is arranged off-center, so that when used alternately, measured from the contact surface of the edge region to the top edge of the cover, there are two different cover heights. 3. Schachtdeckel nach Anspruch 1, dadurch gekennzeichnet, dass der Zwischenbereich (3) die dünnste Wandstärke aufweist.3. manhole cover according to claim 1, characterized in that the intermediate region (3) has the thinnest wall thickness. 4. Schachtdeckel nach Anspruch 1, dadurch gekennzeichnet, dass beim Übergang vom Randbereich (2) auf den Zwischenbereich (3) sowohl oben wie unten je unter einem Winkel von 120 Grad Zentriernocken (4) angebracht sind, welche ein seitliches Verschieben gegenüber dem Schachthals verhindern.4. Manhole cover according to claim 1, characterized in that at the transition from the edge area (2) to the intermediate area (3) both above and below at an angle of 120 degrees centering cams (4) are attached, which prevent lateral displacement relative to the shaft neck . 5. Schachtdeckel nach Anspruch 1, dadurch gekennzeichnet, dass der Zentrumsbereich (1) in der Mitte ein den Deckel durchsetzendes, ovales Pik-kelloch (5) aufweist.5. Manhole cover according to claim 1, characterized in that the center region (1) has in the middle an oval spiked hole (5) penetrating the cover. 55 1010th 1515 2020th 2525th 3030th 3535 4040 4545 5050 5555 6060 6565 22nd
CH144791A 1991-05-15 1991-05-15 Temporary cover for manhole in roadway - provides protection during building work and has strong lightweight thin corrugated outer section CH683435A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH144791A CH683435A5 (en) 1991-05-15 1991-05-15 Temporary cover for manhole in roadway - provides protection during building work and has strong lightweight thin corrugated outer section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH144791A CH683435A5 (en) 1991-05-15 1991-05-15 Temporary cover for manhole in roadway - provides protection during building work and has strong lightweight thin corrugated outer section

Publications (1)

Publication Number Publication Date
CH683435A5 true CH683435A5 (en) 1994-03-15

Family

ID=4210678

Family Applications (1)

Application Number Title Priority Date Filing Date
CH144791A CH683435A5 (en) 1991-05-15 1991-05-15 Temporary cover for manhole in roadway - provides protection during building work and has strong lightweight thin corrugated outer section

Country Status (1)

Country Link
CH (1) CH683435A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0736632A1 (en) * 1995-04-04 1996-10-09 British Gas plc Temporary cover for excavations
EP1020568A1 (en) * 1999-01-12 2000-07-19 Paul-Gerd Stellmach Apparatus for temporarily covering a manhole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0736632A1 (en) * 1995-04-04 1996-10-09 British Gas plc Temporary cover for excavations
EP1020568A1 (en) * 1999-01-12 2000-07-19 Paul-Gerd Stellmach Apparatus for temporarily covering a manhole

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Owner name: FERDINAND KOFEL TRANSFER- GIESSEREI ERZENBERG AG

PL Patent ceased