AT277088B - Manhole cover - Google Patents
Manhole coverInfo
- Publication number
- AT277088B AT277088B AT528466A AT528466A AT277088B AT 277088 B AT277088 B AT 277088B AT 528466 A AT528466 A AT 528466A AT 528466 A AT528466 A AT 528466A AT 277088 B AT277088 B AT 277088B
- Authority
- AT
- Austria
- Prior art keywords
- ribs
- manhole cover
- annular rib
- collar
- edge
- Prior art date
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Description
<Desc/Clms Page number 1>
Schachtabdeckung
EMI1.1
<Desc/Clms Page number 2>
sternförmigBund-10-verlängert und durch eine ringförmige Rippe --12-- unterbrochen, an welche die Enden der Rippen --11-- anschliessen, wobei an ieser Stelle eine Verdickung oder Materialanhäufung - vorgesehen ist, die eine ähnliche guss-und spannungstechnische Funktion wie die Verdickungen --9-- erfüllt. Die ringförmige Rippe befindet sich somit in einem Abstand von etwa zwei Drittel des Radius von der Mittelachse der Schale. Durch diese Rippe wird eine weitere Materialanhäufung erzielt, welche die Spannungen der unteren Rippn unterbricht.
Der Schachtdeckel kann auch ohne Lüftungsöffnungen vorgesehen sein, insbesondere wenn er mit einer Sicherung gegen Abheben bei Hochwasser versehen ist.
Anzahl und Höhe der Rippen der Schachtabdeckung richtet sich nach der jeweils zu erwartenden Belastung. In den fest in die Schachtöffnung einzubauenden Rahmen können demnach Abdeckungen verschiedener Tragkraft eingesetzt werden, beispielsweise kann ein vorhandener Deckel geringer Tragkraft ohne jede Umbauarbeit gegen einen solchen grösserer Tragkraft ausgetauscht werden.
Die Schachtabdeckung kann in den Rahmen gegebenenfalls unter Zwischenlage einer Dichtung eingelegt werden.
Im Rahmen der Erfindung können noch weitere konstruktive Abänderungen vorgenommen
EMI2.1
undPATENTANSPRÜCHE :
1. Schachtabdeckung, die durch kreuz-oder sternförmig verlaufende Rippen versteift ist, welche entlang des unteren Randes in eine mit Beton ausgefüllte Schale übergehen und an ihrer Kreuzungsstelle einen Bund aufweisen, welcher ebenso wie die Rippen mit der Betonausfüllung abschliesst,
EMI2.2
<Desc / Clms Page number 1>
Manhole cover
EMI1.1
<Desc / Clms Page number 2>
Star-shaped collar-10-extended and interrupted by an annular rib --12 - to which the ends of the ribs --11 - adjoin, with a thickening or accumulation of material at this point - which has a similar casting and tensioning function how the thickenings --9-- met. The annular rib is thus at a distance of about two thirds of the radius from the central axis of the shell. This rib creates a further accumulation of material which interrupts the tension in the lower ribs.
The manhole cover can also be provided without ventilation openings, in particular if it is provided with a safeguard against lifting off in the event of high water.
The number and height of the ribs of the manhole cover depend on the load to be expected in each case. In the frame to be installed permanently in the shaft opening, covers of different load-bearing capacity can accordingly be used, for example an existing cover with a low load-bearing capacity can be exchanged for such a higher load-bearing capacity without any conversion work.
The manhole cover can be inserted into the frame, if necessary with the interposition of a seal.
Further structural changes can be made within the scope of the invention
EMI2.1
and PATENT CLAIMS:
1. Manhole cover that is stiffened by ribs running in the shape of a cross or star, which merge along the lower edge into a shell filled with concrete and at their intersection have a collar which, like the ribs, ends with the concrete filling,
EMI2.2
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT528466A AT277088B (en) | 1966-06-03 | 1966-06-03 | Manhole cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT528466A AT277088B (en) | 1966-06-03 | 1966-06-03 | Manhole cover |
Publications (1)
Publication Number | Publication Date |
---|---|
AT277088B true AT277088B (en) | 1969-12-10 |
Family
ID=3574075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT528466A AT277088B (en) | 1966-06-03 | 1966-06-03 | Manhole cover |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT277088B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3936929C1 (en) * | 1989-11-06 | 1991-04-25 | Passavant-Werke Ag, 6209 Aarbergen, De |
-
1966
- 1966-06-03 AT AT528466A patent/AT277088B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3936929C1 (en) * | 1989-11-06 | 1991-04-25 | Passavant-Werke Ag, 6209 Aarbergen, De |
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