EP0681633A1 - Roof-water run-in. - Google Patents

Roof-water run-in.

Info

Publication number
EP0681633A1
EP0681633A1 EP95900598A EP95900598A EP0681633A1 EP 0681633 A1 EP0681633 A1 EP 0681633A1 EP 95900598 A EP95900598 A EP 95900598A EP 95900598 A EP95900598 A EP 95900598A EP 0681633 A1 EP0681633 A1 EP 0681633A1
Authority
EP
European Patent Office
Prior art keywords
roof
edge
water inlet
water
inlet according
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
EP95900598A
Other languages
German (de)
French (fr)
Other versions
EP0681633B1 (en
Inventor
Pierre Juple
Heinz Haesler
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.)
Geberit Technik AG
Original Assignee
Geberit Technik 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 Geberit Technik AG filed Critical Geberit Technik AG
Publication of EP0681633A1 publication Critical patent/EP0681633A1/en
Application granted granted Critical
Publication of EP0681633B1 publication Critical patent/EP0681633B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0427—Drainage outlets, e.g. gullies with means for controlling the flow in the outlet

Definitions

  • the invention relates to a roof water inlet with a water collection trough, which has an edge to be arranged in the plane of a roof and a floor arranged at a distance from this edge with an opening, and this opening leads to a drain line attached to the bottom of the floor and with it a plate which is arranged above said opening of the bottom and the edge of this plate extends beyond this opening.
  • Roof water inlets of this type are known from US-A-1,791,512, DE-A-1 948 214 and DE-A-26 50 361. These each point over the mouth of the A plate runs on, which should prevent the suction of air and thereby cause a closed flow in the drain line.
  • a closed flow enables fully filled lines. Compared to roof drainage without a closed flow, this enables smaller pipe dimensions, less roof water inlets for a given roof area and thus less space and less installation effort.
  • the invention has for its object to provide a roof water inlet of the type mentioned, which works more quietly and continuously with less risk of blockage and has an improved performance over the entire water quantity range.
  • the object is achieved in the generic roof water inlet in that two plates are arranged at a distance from one another, a lower plate being arranged in the water collecting trough and an upper plate being arranged over the edge of the water collecting trough and the edge of this upper plate extends beyond the edge of the water collecting trough in such a way that a closed flow in the drain line, the water to be drained is accelerated in front of the edge of the water collecting trough and after a double deflection by about 90 ° in each case before the opening of the bottom.
  • the acceleration section is considerably lengthened in the water inlet according to the invention.
  • a closed flow is thus ensured with small and large amounts of water and with large amounts of water the output is significantly higher than with similarly large inlets with only one plate.
  • a significant advantage of the invention is also seen in the fact that, due to the higher performance with regard to the different national regulations, fewer different roof water inlets have to be produced and kept in stock. Since two plates arranged at a distance are provided in the roof water inlet according to the invention, it is possible to fasten the lower plate to the upper plate, so that the lower plate can then be kept free on its underside and thus requires no fastening means here. which in turn reduces the risk of clogging and results in a calmer flow.
  • the two plates and, if appropriate, a leaf trap and a gravel ring as a unit and releasably attach them to the water collecting trough.
  • the two plates can also be connected to one another by a central tube, which tube can simultaneously serve as an overflow.
  • FIG. 1 shows a vertical section through a built-in roof water inlet according to the invention
  • roof water inlet 10 shows in section an area of a roof 1 with a horizontal roof plane 1 a, into which a roof water inlet 10 according to the invention is installed, a possible roof insulation, sealing means and fastening means not being shown here, since these are in themselves are known.
  • the roof water inlet 10 consists of a water trough 3, a gravel ring
  • the water trough 3 has a radially outwardly extending collar 3c, which is arranged in the roof plane la and is formed on an inner edge 3d on an approximately vertical wall 3e. This wall 3e is in turn molded onto a base 3a in which a circular opening 3b is cut out in the center, which leads into a drain line 2.
  • the upper end of the drain line 2 is welded to a connection piece 3f of the water collecting trough or is otherwise connected tightly to it. Water flowing from the roof level 1 a into the water collecting trough 3 is thus conducted into the drain line 2 through the opening 3 b.
  • the gravel ring 8 Distributed on the top of the collar 3c are a plurality of upwardly projecting brackets 3g, into each of which a tooth 8c of a web 8a of the gravel ring 8 is engaged.
  • the gravel ring 8 thus has a plurality of webs 8a distributed over its circumference, each of which is detachably fastened to the water collecting trough 3 by a snap connection.
  • the gravel ring 8 also has a plurality of webs 8e, which are formed on a ring 8d, which then rests on the outer edge of the collar 3c on the roof plane la and is supported. The ring 8d in particular prevents a lateral displacement of the gravel ring 8 with respect to the water collecting trough 3.
  • a circumferential ring 8b is formed on the webs 8a and 8e at the upper end, which connects these webs to one another and has a locking edge 8f projecting outwards which the unit 9 is snapped on.
  • the webs 8a and 8e are arranged at a suitable distance from one another and allow water to pass through to the water collecting trough 3, but prevent the passage of gravel, which is usually located on the roof plane la.
  • the unit 9 is inserted in its entirety into the gravel ring 8 and is fastened to the ring 8b of the gravel ring 8 with at least one latching arm 7d by latching.
  • the arm 7d can be pivoted somewhat at its upper end to release the latching connection.
  • the unit 9 has an overflow pipe 6 in the middle, on which a leaf trap 7 with vertical passage openings 7b, webs 7a and a circumferential ring 7c resting on the gravel ring 8 are formed at the upper end.
  • the locking arm 7d is attached to this leaf trap 7.
  • U.N- Above the leaf trap 7, a closed circular plate 5 is formed on the outside of the overflow pipe 6 and extends horizontally outwards.
  • This plate 5 is arranged at a distance from the collar 3c and, as can be seen, extends beyond the edge 3d of the water collecting trough 3.
  • a lower plate 4 is fastened to an inner wall 6c of the overflow pipe 6 below the plate 5 and below an outlet opening 6b of the overflow pipe 6.
  • This plate 4 is also connected via vertical and radial walls 6c to the upper plate 5 with the outside of the overflow pipe 6. As can be seen, the plate 4 is located somewhat below the edge 3d and is larger than the opening 3b of the water collecting trough 3.
  • FIG. 2 shows schematically the flow of a quantity of rain water 11 to be drained from the roof 1 with a flood height h that is lower than the distance of the upper plate 5 from the collar 3c.
  • the flow runs horizontally and radially in the direction of the arrow 12a and is essentially unaffected by the upper plate 5 here.
  • the water 11 is deflected downward by about 90 "according to arrow 12b and passes between the wall 3e and the outer edge of the lower plate 4 into the water collecting trough 3. After a further deflection at the bottom 3a, the water 11 arrives under the lower plate 4 and finally via the opening 3b into the drain line 2.
  • the water is again diverted from an approximately horizontal flow direction according to arrow 12c by about 90 * to a vertical flow direction according to arrow 12d.
  • the narrowing passage accelerates the water 11 and reaches the drain line 2 as a closed flow, the plate 4 preventing air from being sucked in.
  • FIG. 3 schematically shows the flow conditions for a quantity of water 11 with a flood height H which is higher than the distance of the plate 5 from the collar 3c.
  • the water 11 is already accelerated in the area of the collar 3c and, after being deflected by approximately 90 °, passes through the annular opening 13, which is formed by the plate 4 and the wall 3e, under the plate 4 and finally into the drain line 2.
  • the water 11 is thus accelerated in the area of the collar 3c and also in the area of the plate 4.
  • the cross section Q3 of the drain line 2 is smaller than the cross section Q2 of the annular opening 3b and this in turn is smaller than the cross section Q ⁇ of the opening between the upper plate 5 and the collar 3c.
  • the water On the way into the drain line 2, the water is thus accelerated at three passage openings which gradually decrease in size and thus finally has a particularly high speed in the drain line 2. If the opening between the plate 5 and the collar 3c is blocked by leaves, for example, in the case of an increasing flooding height, the water can flow radially outwards and inwards through an upper opening 6a of the overflow pipe into this and finally through the lower opening 6b above the plate 4 the collecting tray 3 arrive. In the trough 3, this water is accelerated by the plate 4 as explained with reference to FIG. 2 and also reaches the drain line 2 as a closed flow.
  • the unit 9 can be removed as a whole from the gravel ring 8 very simply by pivoting the locking arm 7d.
  • the water trough 3 is then immediately accessible from above.
  • the gravel ring 8 can also be removed from the water collecting trough 3 by pivoting the webs 8a.
  • the assembly is then carried out in the reverse order, the gravel ring 8 and the unit 9 then being automatically locked in place when they are put on. A revision can therefore be carried out very quickly and easily.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Sewage (AREA)
  • Building Environments (AREA)
  • Paper (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Revetment (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Bridges Or Land Bridges (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Graft Or Block Polymers (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Filtration Of Liquid (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Physical Water Treatments (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Valve Device For Special Equipments (AREA)
  • Glass Compositions (AREA)

Abstract

PCT No. PCT/CH94/00229 Sec. 371 Date Jul. 10, 1995 Sec. 102(e) Date Jul. 10, 1995 PCT Filed Nov. 29, 1994 PCT Pub. No. WO95/15423 PCT Pub. Date Jun. 8, 1995A water collection trough has an edge arranged in the plane of a roof and a bottom, arranged with spacing from the edge, with an opening. The opening leads to a drainage pipe mounted down at the bottom of the trough. Two parallel plates are arranged spaced apart, a lower plate being fixed in the water collection trough and an upper plate being fixed above the edge of the water collection trough. The edge of the upper plate projects beyond the edge of the water collection trough in such a way that, to form a closed flow in the drainage pipe. The water to be led away is accelerated ahead of the edge of the water collection trough and, after a two-fold deflection of about 90 DEG in each case, ahead of the opening in the bottom.

Description

Dachwassereinlauf Roof water inlet
Die Erfindung betrifft einen Dachwassereinlauf mit einer Wassersammeimulde, die einen in der Ebene eines Daches an¬ zuordnenden Rand und einen im Abstand zu diesem Rand ange¬ ordneten Boden mit einer Oeffnung aufweist und diese Oeff¬ nung zu einer unten am Boden angebrachten Ablaufleitung führt und mit einer Platte, die über der genannten Oeffnung des Bodens angeordnet ist und der Rand dieser Platte sich über diese Oeffnung hinaus erstreckt.The invention relates to a roof water inlet with a water collection trough, which has an edge to be arranged in the plane of a roof and a floor arranged at a distance from this edge with an opening, and this opening leads to a drain line attached to the bottom of the floor and with it a plate which is arranged above said opening of the bottom and the edge of this plate extends beyond this opening.
Dachwassereinläufe dieser Art sind durch die US-A- 1,791,512, die DE-A-1 948 214 und die DE-A-26 50 361 be¬ kannt geworden. Diese weisen jeweils über der Mündung des Ablaufes eine Platte auf, welche das Ansaugen von Luft ver¬ hindern und dadurch eine geschlossene Strömung in der Ab¬ laufleitung bewirken soll. Eine geschlossene Strömung er¬ möglicht voll gefüllte Leitungen. Verglichen mit einer Dachentwässerung ohne geschlossene Strömung ermöglicht dies kleinere Rohrdimensionen, weniger Dachwassereinlaufe für eine gegebene Dachfläche und damit auch weniger Platzbedarf und einen geringeren Montageaufwand.Roof water inlets of this type are known from US-A-1,791,512, DE-A-1 948 214 and DE-A-26 50 361. These each point over the mouth of the A plate runs on, which should prevent the suction of air and thereby cause a closed flow in the drain line. A closed flow enables fully filled lines. Compared to roof drainage without a closed flow, this enables smaller pipe dimensions, less roof water inlets for a given roof area and thus less space and less installation effort.
Bei den genannten Dachwassereinläufen besteht nun die Schwierigkeit, dass die Leistung wesentlich von der Wasser¬ menge abhängig ist und insbesondere ein wünschbarer ruhiger und kontinuierlicher Ablauf nicht in jedem Fall gewährlei¬ stet ist. Ein Problem ist bei diesen Dachwassereinläufen nach wie vor die Verstopfungsgefahr beispielsweise durch Laub, das in die Wassersam elmulde eingedrungen ist.In the case of the roof water inlets mentioned, there is now the difficulty that the output is essentially dependent on the amount of water and, in particular, that a desired quiet and continuous flow is not guaranteed in every case. A problem with these roof water inlets is still the risk of clogging, for example due to leaves that have penetrated into the water trough.
Der Erfindung liegt die Aufgabe zugrunde, einen Dachwas¬ sereinlauf der genannten Art zu schaffen, der bei geringe¬ rer Verstopfungsgefahr ruhiger und kontinuierlicher arbei¬ tet und über den gesamten Wassermengenbereich eine verbes¬ serte Leistung aufweist.The invention has for its object to provide a roof water inlet of the type mentioned, which works more quietly and continuously with less risk of blockage and has an improved performance over the entire water quantity range.
Die Aufgabe ist beim gattungsgemässen Dachwassereinlauf da¬ durch gelöst, dass zwei Platten im Abstand zueinander ange¬ ordnet sind, wobei eine untere Platte in der Wassersammel¬ mulde und eine obere Platte über den Rand der Wassersammel¬ mulde angeordnet ist und der Rand dieser oberen Platte den Rand der Wassersammelmulde überragt, derart, dass zur Bil- dung einer geschlossenen Strömung in der Ablaufleitung das abzuführende Wasser vor dem Rand der Wassersammelmulde und nach einer zweifachen Umlenkung um jeweils etwa 90° vor der Oeffnung des Bodens beschleunigt wird. Verglichen mit den bekannten Dachwassereinläufen ist beim erfindungsgemässen Wassereinlauf die Beschleunigungsstrecke wesentlich verlän¬ gert. Durch eine geeignete Anordnung der beiden Platten ist es möglich, den Durchtrittsquerschnitt für das Wasser in Strömungsrichtung gesehen stufenweise zu verkleinern und dadurch in der Ablaufleitung eine höhere Strömungsgeschwin¬ digkeit und dadurch eine höhere Ablaufleistung zu errei¬ chen. Die höhere Wassergeschwindigkeit und die mehrfache Umlenkung des Wassers bewirken eine bessere Selbstreinigung der Wassersammelmulde. Die längere Beschleunigungsstrecke gewährleistet zudem einen ruhigeren und kontinuierlicheren Lauf. Bei vergleichsweise geringer Wassermenge ist eine ge¬ schlossene Strömung zumindest durch die untere Platte ge¬ währleistet. Versuche haben gezeigt, dass bei einem Lei¬ tungsinnenquerschnitt von 50 mm eine Ablaufleistung von etwa 12 Liter pro Sekunde erreicht werden kann. Eine ge¬ schlossene Strömung ist somit bei kleinen und grossen Was¬ sermengen gewährleistet und bei grossen Wassermengen ist die Leistung wesentlich höher als bei ähnlich grossen Ein¬ laufen mit lediglich einer Platte. Ein wesentlicher Vorteil der Erfindung wird auch darin gesehen, dass aufgrund der höheren Leistung im Hinblick auf die unterschiedlichen na¬ tionalen Vorschriften weniger unterschiedliche Dachwas- sereinläufe hergestellt und an Lager gehalten werden müs¬ sen. Da beim erfindungsgemässen Dachwassereinlauf zwei im Ab¬ stand angeordnete Platten vorgesehen sind, ist es möglich, die untere Platte an der oberen Platte zu befestigen, so dass dann die untere Platte an ihrer Unterseite frei gehal¬ ten werden kann und hier somit keine Befestigungsmittel benötigt, was wiederum die Verstopfungsgefahr verringert und eine ruhigere Strömung ergibt. Zudem ist es möglich, die beiden Platten und gegebenenfalls einen Laubfang und einen Kiesring als Einheit auszubilden und lösbar an der Wassersammelmulde zu befestigen. Die beiden Platten können gemäss einer Weiterbildung der Erfindung zudem durch ein zentrales Rohr miteinander verbunden sein, wobei dieses Rohr gleichzeitig als Ueberlauf dienen kann.The object is achieved in the generic roof water inlet in that two plates are arranged at a distance from one another, a lower plate being arranged in the water collecting trough and an upper plate being arranged over the edge of the water collecting trough and the edge of this upper plate extends beyond the edge of the water collecting trough in such a way that a closed flow in the drain line, the water to be drained is accelerated in front of the edge of the water collecting trough and after a double deflection by about 90 ° in each case before the opening of the bottom. Compared to the known roof water inlets, the acceleration section is considerably lengthened in the water inlet according to the invention. By means of a suitable arrangement of the two plates, it is possible to gradually reduce the passage cross-section for the water as seen in the direction of flow and thereby to achieve a higher flow rate in the discharge line and thereby a higher discharge rate. The higher water speed and the multiple deflection of the water result in a better self-cleaning of the water collection trough. The longer acceleration distance also ensures a smoother and more continuous run. With a comparatively small amount of water, a closed flow is ensured at least through the lower plate. Experiments have shown that a drainage rate of approximately 12 liters per second can be achieved with an internal line cross section of 50 mm. A closed flow is thus ensured with small and large amounts of water and with large amounts of water the output is significantly higher than with similarly large inlets with only one plate. A significant advantage of the invention is also seen in the fact that, due to the higher performance with regard to the different national regulations, fewer different roof water inlets have to be produced and kept in stock. Since two plates arranged at a distance are provided in the roof water inlet according to the invention, it is possible to fasten the lower plate to the upper plate, so that the lower plate can then be kept free on its underside and thus requires no fastening means here. which in turn reduces the risk of clogging and results in a calmer flow. In addition, it is possible to form the two plates and, if appropriate, a leaf trap and a gravel ring as a unit and releasably attach them to the water collecting trough. According to a further development of the invention, the two plates can also be connected to one another by a central tube, which tube can simultaneously serve as an overflow.
Weitere vorteilhafte Merkmale ergeben sich aus den abhängi¬ gen Patentansprüchen, der Beschreibung und der Zeichnung.Further advantageous features result from the dependent patent claims, the description and the drawing.
Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung näher erläutert. Es zeigen:An embodiment of the invention is explained in more detail with reference to the drawing. Show it:
Fig. 1 einen vertikalen Schnitt durch einen einge¬ bauten erfindungsgemässen Dachwassereinlauf,1 shows a vertical section through a built-in roof water inlet according to the invention,
Fig. 2 und 3 zur Illustration der Strömungsverhältnisse jeweils ein Schnitt durch eine Hälfte des er¬ findungsgemässen Dachwassereinlaufes, und Fig. 4 ein Schnitt durch die auseinandergezogenen Teile des erfindungsgemässen Dachwasserein¬ laufes.2 and 3 each illustrate a section through half of the inventive roof water inlet, and 4 shows a section through the pulled-apart parts of the roof water inlet according to the invention.
Die Fig. 1 zeigt im Schnitt einen Bereich eines Daches 1 mit einer horizontalen Dachebene la, in das ein erfindungs- gemässer Dachwassereinlauf 10 eingebaut ist, wobei eine eventuelle Dachisolation sowie Dichtungsmittel und Befesti¬ gungsmittel hier nicht gezeigt sind, da diese an sich be¬ kannt sind. Wie zudem die Fig. 4 zeigt, ist der Dachwas¬ sereinlauf 10 aus einer Wassersammelmulde 3, einem Kiesring1 shows in section an area of a roof 1 with a horizontal roof plane 1 a, into which a roof water inlet 10 according to the invention is installed, a possible roof insulation, sealing means and fastening means not being shown here, since these are in themselves are known. As also shown in FIG. 4, the roof water inlet 10 consists of a water trough 3, a gravel ring
8 sowie einer oberen Einheit 9 zusammengesetzt. Diese Teile 3, 8 und 9 sind separat aus einem geeigneten Kunststoff hergestellt und vorzugsweise lösbar miteinander verbunden. Zum Reinigen des Dachwassereinlaufs lassen sich die Einheit8 and an upper unit 9 assembled. These parts 3, 8 and 9 are made separately from a suitable plastic and are preferably releasably connected to one another. The unit can be used to clean the roof water inlet
9 und der Kiesring 8 von der Wassersammelmulde 3 abnehmen.9 and remove the gravel ring 8 from the water collecting trough 3.
Die Wassersammelmulde 3 besitzt einen radial sich nach aus- sen erstreckenden Kragen 3c, der in der Dachebene la ange¬ ordnet ist und an einem inneren Rand 3d an einer etwa ver¬ tikalen Wandung 3e angeformt ist. Diese Wandung 3e ist ih¬ rerseits an einem Boden 3a angeformt, in dem mittig eine kreisrunde Oeffnung 3b ausgespart ist, die in eine Ablauf- leitung 2 führt. Das obere Ende der Ablaufleitung 2 ist an einem Stutzen 3f der Wassersammelmulde angeschweisst oder sonstwie dicht mit diesem verbunden. Von der Dachebene la in die Wassersammelmulde 3 einströmendes Wasser wird somit durch die Oeffnung 3b in die Ablaufleitung 2 geleitet. Auf der Oberseite des Kragens 3c sind verteilt mehrere nach oben ragende Halterungen 3g angeformt, in die jeweils ein Zahn 8c eines Steges 8a des Kiesringes 8 eingerastet ist. Der Kiesring 8 weist somit mehrere über seinen Umfang ver¬ teilte Stege 8a auf, die jeweils durch eine Rastverbindung mit der Wassersammelmulde 3 lösbar befestigt sind. Der Kiesring 8 weist zudem mehrere Stege 8e auf, die an einem Ring 8d angeformt sind, welcher anschliessend an den äusse- ren Rand des Kragens 3c auf der Dachebene la aufliegt und abgestützt ist. Der Ring 8d verhindert insbesondere eine seitliche Verschiebung des Kiesringes 8 bezüglich der Was¬ sersammelmulde 3. An den Stegen 8a und 8e ist jeweils am oberen Ende ein umlaufender Ring 8b angeformt, der diese Stege miteinander verbindet und einen nach aussen ragenden Rastrand 8f aufweist, an dem die Einheit 9 aufgerastet ist. Die Stege 8a und 8e sind im geeigneten Abstand zueinander angeordnet und ermöglichen den Durchtritt von Wasser zur Wassersammelmulde 3, verhindern jedoch den Durchtritt von Kies, der sich üblicherweise auf der Dachebene la befindet.The water trough 3 has a radially outwardly extending collar 3c, which is arranged in the roof plane la and is formed on an inner edge 3d on an approximately vertical wall 3e. This wall 3e is in turn molded onto a base 3a in which a circular opening 3b is cut out in the center, which leads into a drain line 2. The upper end of the drain line 2 is welded to a connection piece 3f of the water collecting trough or is otherwise connected tightly to it. Water flowing from the roof level 1 a into the water collecting trough 3 is thus conducted into the drain line 2 through the opening 3 b. Distributed on the top of the collar 3c are a plurality of upwardly projecting brackets 3g, into each of which a tooth 8c of a web 8a of the gravel ring 8 is engaged. The gravel ring 8 thus has a plurality of webs 8a distributed over its circumference, each of which is detachably fastened to the water collecting trough 3 by a snap connection. The gravel ring 8 also has a plurality of webs 8e, which are formed on a ring 8d, which then rests on the outer edge of the collar 3c on the roof plane la and is supported. The ring 8d in particular prevents a lateral displacement of the gravel ring 8 with respect to the water collecting trough 3. A circumferential ring 8b is formed on the webs 8a and 8e at the upper end, which connects these webs to one another and has a locking edge 8f projecting outwards which the unit 9 is snapped on. The webs 8a and 8e are arranged at a suitable distance from one another and allow water to pass through to the water collecting trough 3, but prevent the passage of gravel, which is usually located on the roof plane la.
Die Einheit 9 ist gesamthaft in den Kiesring 8 eingesetzt und mit wenigstens einem Rastarm 7d am Ring 8b des Kies¬ rings 8 durch Rastung befestigt. Der Arm 7d kann an seinem oberen Ende zum Lösen der Rastverbindung etwas verschwenkt werden. Die Einheit 9 weist mittig ein Ueberlaufrohr 6 auf, an dem am oberen Ende ein Laubfang 7 mit vertikalen Durch¬ trittsöffnungen 7b, Stegen 7a sowie einem umlaufenden, auf dem Kiesring 8 aufliegenden Ring 7c angeformt sind. Der ge¬ nannte Rastarm 7d ist an diesem Laubfang 7 befestigt. Un- terhalb des Laubfangs 7 ist aussenseitig am Ueberlaufrohr 6 eine geschlossene sich horizontal nach aussen erstreckende und kreisrunde Platte 5 angeformt. Diese Platte 5 ist im Abstand zum Kragen 3c angeordnet und erstreckt sich wie er¬ sichtlich über den Rand 3d der Wassersammelmulde 3 hinaus. Unterhalb der Platte 5 und unterhalb einer Austrittsöffnung 6b des Ueberlaufrohres 6 ist an einer inneren Wandung 6c des Ueberlaufrohres 6 eine untere Platte 4 befestigt. Diese Platte 4 ist zudem über vertikal und radial verlaufende Wandungen 6c mit der oberen Platte 5 mit der Aussenseite des Ueberlaufrohres 6 verbunden. Wie ersichtlich, befindet sich die Platte 4 etwas unterhalb des Randes 3d und ist grösser als die Oeffnung 3b der Wassersammelmulde 3.The unit 9 is inserted in its entirety into the gravel ring 8 and is fastened to the ring 8b of the gravel ring 8 with at least one latching arm 7d by latching. The arm 7d can be pivoted somewhat at its upper end to release the latching connection. The unit 9 has an overflow pipe 6 in the middle, on which a leaf trap 7 with vertical passage openings 7b, webs 7a and a circumferential ring 7c resting on the gravel ring 8 are formed at the upper end. The locking arm 7d is attached to this leaf trap 7. U.N- Above the leaf trap 7, a closed circular plate 5 is formed on the outside of the overflow pipe 6 and extends horizontally outwards. This plate 5 is arranged at a distance from the collar 3c and, as can be seen, extends beyond the edge 3d of the water collecting trough 3. A lower plate 4 is fastened to an inner wall 6c of the overflow pipe 6 below the plate 5 and below an outlet opening 6b of the overflow pipe 6. This plate 4 is also connected via vertical and radial walls 6c to the upper plate 5 with the outside of the overflow pipe 6. As can be seen, the plate 4 is located somewhat below the edge 3d and is larger than the opening 3b of the water collecting trough 3.
Die Wirkungsweise des erfindungsgemässen Dachwassereinlaufs wird nachfolgend anhand der Figuren 2 und 3 näher erläu¬ tert.The mode of operation of the roof water inlet according to the invention is explained in more detail below with reference to FIGS. 2 and 3.
Die Fig. 2 zeigt schematisch den Strömungsverlauf einer vom Dach 1 abzuführenden Regenwassermenge 11 mit einer Ueber- schwemmungshöhe h, die niedriger ist als der Abstand der oberen Platte 5 vo Kragen 3c. Im Bereich des Kragens 3c verläuft die Strömung horizontal und radial in Richtung des Pfeiles 12a und ist hier von der oberen Platte 5 im wesent¬ lichen nicht beeinflusst. Beim Rand 3d wird das Wasser 11 gemäss Pfeil 12b etwa um 90" nach unten umgelenkt und gelangt zwischen der Wandung 3e und dem äusseren Rand der unteren Platte 4 hindurch in die Wassersammelmulde 3. Nach einer weiteren Umlenkung am Boden 3a gelangt das Wasser 11 unter die untere Platte 4 und schliesslich über die Oeffnung 3b in die Ablaufleitung 2. Am Rand der Oeffnung 3b wird das Wasser wiederum von einer etwa horizontalen Strömungsrichtung gemäss Pfeil 12c um etwa 90* in eine vertikale Strömungsrichtung gemäss Pfeil 12d umgelenkt. Im Bereich der Platte 4 wird durch den sich verengenden Durchtritt das Wasser 11 beschleunigt und gelangt als geschlossene Strömung in die Ablaufleitung 2, wobei die Platte 4 ein Ansaugen von Luft verhindert.FIG. 2 shows schematically the flow of a quantity of rain water 11 to be drained from the roof 1 with a flood height h that is lower than the distance of the upper plate 5 from the collar 3c. In the region of the collar 3c, the flow runs horizontally and radially in the direction of the arrow 12a and is essentially unaffected by the upper plate 5 here. At the edge 3d, the water 11 is deflected downward by about 90 "according to arrow 12b and passes between the wall 3e and the outer edge of the lower plate 4 into the water collecting trough 3. After a further deflection at the bottom 3a, the water 11 arrives under the lower plate 4 and finally via the opening 3b into the drain line 2. At the edge of the opening 3b, the water is again diverted from an approximately horizontal flow direction according to arrow 12c by about 90 * to a vertical flow direction according to arrow 12d. In the area of the plate 4, the narrowing passage accelerates the water 11 and reaches the drain line 2 as a closed flow, the plate 4 preventing air from being sucked in.
Die Fig. 3 zeigt schematisch die Strömungsverhältnisse bei einer Wassermenge 11 mit einer Ueberschwemmungshöhe H, die höher ist als der Abstand der Platte 5 vom Kragen 3c. In diesem Fall wird das Wasser 11 bereits im Bereich des Kra¬ gens 3c beschleunigt und gelangt nach einer Umlenkung um etwa 90° durch die ringförmige Oeffnung 13, welche durch die Platte 4 und die Wandung 3e gebildet ist, hindurch un¬ ter die Platte 4 und schliesslich in die Ablaufleitung 2. Das Wasser 11 wird somit im Bereich des Kragens 3c und auch im Bereich der Platte 4 beschleunigt. Da es sich um eine geschlossene Strömung handelt, ist gemäss Fig. 3 der Quer¬ schnitt Q3 der Ablaufleitung 2 kleiner als der Querschnitt Q2 der ringförmigen Oeffnung 3b und dieser wiederum kleiner als der Querschnitt Q^ der Oeffnung zwischen der oberen Platte 5 und dem Kragen 3c. Auf dem Weg in die Ablauflei¬ tung 2 wird somit das Wasser bei drei sich stufenweise ver¬ kleinernden Durchtrittsöffnungen beschleunigt und weist da¬ durch in der Ablaufleitung 2 schliesslich eine besonders hohe Geschwindigkeit auf. Ist die Oeffnung zwischen der Platte 5 und dem Kragen 3c beispielsweise durch Laub verstopft, so kann im Fall einer ansteigenden Ueberschwemmungshöhe das Wasser durch eine obere Oeffnung 6a des Ueberlaufrohrs in dieses und schliesslich durch die untere Oeffnung 6b über der Platte 4 radial nach aussen und in die Sammelmulde 3 gelangen. In der Mulde 3 wird dieses Wasser wie anhand der Fig. 2 erläu¬ tert durch die Platte 4 beschleunigt und gelangt ebenfalls als geschlossene Strömung in die Ablaufleitung 2.3 schematically shows the flow conditions for a quantity of water 11 with a flood height H which is higher than the distance of the plate 5 from the collar 3c. In this case, the water 11 is already accelerated in the area of the collar 3c and, after being deflected by approximately 90 °, passes through the annular opening 13, which is formed by the plate 4 and the wall 3e, under the plate 4 and finally into the drain line 2. The water 11 is thus accelerated in the area of the collar 3c and also in the area of the plate 4. 3, the cross section Q3 of the drain line 2 is smaller than the cross section Q2 of the annular opening 3b and this in turn is smaller than the cross section Q ^ of the opening between the upper plate 5 and the collar 3c. On the way into the drain line 2, the water is thus accelerated at three passage openings which gradually decrease in size and thus finally has a particularly high speed in the drain line 2. If the opening between the plate 5 and the collar 3c is blocked by leaves, for example, in the case of an increasing flooding height, the water can flow radially outwards and inwards through an upper opening 6a of the overflow pipe into this and finally through the lower opening 6b above the plate 4 the collecting tray 3 arrive. In the trough 3, this water is accelerated by the plate 4 as explained with reference to FIG. 2 and also reaches the drain line 2 as a closed flow.
Im Fall einer Revision kann die Einheit 9 durch ein Schwen¬ ken des Rastarms 7d als Ganzes sehr einfach vom Kiesring 8 abgenommen werden. Die Wassersammelmulde 3 ist dann sofort von oben gut zugänglich. Ebenfalls kann der Kiesring 8 durch Verschwenken der Stege 8a von der Wassersammelmulde 3 abgenommen werden. Der Zusammenbau erfolgt dann in umge¬ kehrter Reihenfolge, wobei dann der Kiesring 8 und die Ein¬ heit 9 beim Aufsetzen jeweils automatisch verrastet werden. Eine Revision ist somit sehr schnell und einfach durchführ¬ bar. In the event of a revision, the unit 9 can be removed as a whole from the gravel ring 8 very simply by pivoting the locking arm 7d. The water trough 3 is then immediately accessible from above. The gravel ring 8 can also be removed from the water collecting trough 3 by pivoting the webs 8a. The assembly is then carried out in the reverse order, the gravel ring 8 and the unit 9 then being automatically locked in place when they are put on. A revision can therefore be carried out very quickly and easily.

Claims

Patentansprüche claims
1. Dachwassereinlauf mit einer Wassersammel¬ mulde (3), die einen in der Ebene (la) eines Daches (1) an¬ geordneten Rand (3d) und einen im Abstand zu diesem Rand (3d) angeordneten Boden (3a) mit einer Oeffnung (3b) auf¬ weist und diese Oeffnung (3b) zu einer unten am Boden (3a) angebrachten Ablaufleitung (2) führt und mit einer Platte (4,5), die über der genannten Oeffnung (3b) des Bodens (3a) angeordnet ist und der Rand dieser Platte (4,5) sich über diese Oeffnung (3b) hinaus erstreckt, dadurch gekennzeich¬ net, dass zwei Platten (4,5) im Abstand zueinander angeord¬ net sind, wobei eine untere Platte (4) in der Wassersammel¬ mulde (3) und eine obere Platte (5) über dem Rand (3d) der Wassersammelmulde (3) angeordnet ist und der Rand dieser oberen Platte (5) den Rand (3d) der Wassersammelmulde (3) überragt, derart, dass zur Bildung einer geschlossenen Strömung in der Ablaufleitung (2) das abzuleitende Wasser (11) vor dem Rand (3d) der Wassersammelmulde (3) und nach einer zweifachen Umlenkung von jeweils etwa 90° vor der1. Roof water inlet with a water collecting trough (3) which has an edge (3d) arranged in the plane (la) of a roof (1) and a bottom (3a) with an opening spaced from this edge (3d) (3b) has and this opening (3b) leads to a drain line (2) attached to the bottom of the bottom (3a) and with a plate (4,5) which is arranged above said opening (3b) of the bottom (3a) and the edge of this plate (4, 5) extends beyond this opening (3b), characterized in that two plates (4, 5) are arranged at a distance from one another, a lower plate (4) in the water collecting trough (3) and an upper plate (5) are arranged above the edge (3d) of the water collecting trough (3) and the edge of this upper plate (5) projects beyond the edge (3d) of the water collecting trough (3), such that that to form a closed flow in the drain line (2) the water to be drained (11) in front of the edge (3d) of the water collecting trough (3) and after a double deflection of about 90 ° in front of each
Oeffnung (3b) des Bodens (3a) beschleunigt wird.Opening (3b) of the bottom (3a) is accelerated.
2. Dachwassereinlauf nach Anspruch 1, dadurch gekennzeichnet, dass der Durchtrittsquerschnitt (Q-^) für das abzuführende Wasser (11) vor dem Rand (3d) der Wasser¬ sammelmulde (3) grösser ist als der Durchtrittsquerschnitt (Qj) zwischen dem Rand der unteren Platte (4) und der ver¬ tikalen Wandung (3e) der Wassersammelmulde (3) und dieser Querschnitt wiederum grösser ist als der Querschnitt (Q3) der Ablaufleitung (2) im Bereich der Oeffnung (3b) des Bo¬ dens (3a) .2. Roof water inlet according to claim 1, characterized in that the passage cross-section (Q- ^) for the water to be discharged (11) in front of the edge (3d) of the water trough (3) is larger than the passage cross-section (Q j ) between the edge the lower plate (4) and the vertical wall (3e) of the water trough (3) and this cross-section is again larger than the cross-section (Q3) of the drain line (2) in the region of the opening (3b) of the bottom (3a ).
3. Dachwassereinlauf nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die obere und/oder untere Platte (5,4) lösbar an der Wassersammelmulde (3) befestigt ist bzw. sind.3. Roof water inlet according to claim 1 or 2, characterized in that the upper and / or lower plate (5,4) is or are releasably attached to the water collecting trough (3).
4. Dachwassereinlauf nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Wassersammelmulde (3) Befestigungsmittel (3d) aufweist, mit denen die beiden Platten (4,5) lösbar an der Wassersammelmulde (3) befestigt sind.4. Roof water inlet according to one of claims 1 to 3, characterized in that the water collecting trough (3) has fastening means (3d) with which the two plates (4, 5) are detachably fastened to the water collecting trough (3).
5. Dachwassereinlauf nach Anspruch 4, dadurch gekennzeichnet, dass die genannten Verbindungsmittel (3d,8c) eine Rastverbindung bilden. 5. roof water inlet according to claim 4, characterized in that said connecting means (3d, 8c) form a snap connection.
6. Dachwassereinlauf nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die obere und die un¬ tere Platte (4,5) miteinander verbunden sind.6. Roof water inlet according to one of claims 1 to 5, characterized in that the upper and the lower plate (4, 5) are connected to one another.
7. Dachwassereinlauf nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass ein Ueberlaufkanal (6a,6b) vorgesehen ist, der etwa mittig durch die obere Platte (5) hindurchführt.7. Roof water inlet according to one of claims 1 to 6, characterized in that an overflow channel (6a, 6b) is provided which passes approximately centrally through the upper plate (5).
8. Dachwassereinlauf nach Anspruch 7, dadurch gekennzeichnet, dass der Ueberlaufkanal (6a,6b) über der unteren Platte (4) radial nach aussen offen ist, derart, dass durch den Ueberlaufkanal eintretendes Wasser auf der Oberseite der oberen Platte (4) radial nach aussen in die Wassersammelmulde (3) und unter diese Platte (4) geleitet wird.8. roof water inlet according to claim 7, characterized in that the overflow channel (6a, 6b) over the lower plate (4) is open radially outwards, such that water entering through the overflow channel on the top of the upper plate (4) radially after is led outside into the water collecting trough (3) and under this plate (4).
9. Dachwassereinlauf nach Anspruch 8, dadurch gekennzeichnet, dass beide Platten (4,5) an einem mittig angeordneten Ueberlaufrohr (6) befestigt sind.9. roof water inlet according to claim 8, characterized in that both plates (4,5) are attached to a centrally arranged overflow pipe (6).
10. Dachwassereinlauf nach einem der Ansprüche 1 bis 9, gekennzeichnet durch einen Laubfang (7), der we¬ nigstens mit der oberen Platte (5) verbunden ist.10. Roof water inlet according to one of claims 1 to 9, characterized by a leaf trap (7), which is at least connected to the upper plate (5).
11. Dachwassereinlauf nach Anspruch 10, dadurch gekennzeichnet, dass die beiden Platten (4,5) mit dem Laub¬ fang (7) eine Einheit (9) bilden. 11. roof water inlet according to claim 10, characterized in that the two plates (4,5) with the Laub¬ catch (7) form a unit (9).
12. Dachwassereinlauf nach einem der Ansprüche 1 bis 11, gekennzeichnet durch einen Kiesring (8), der lös¬ bar an der Wassersammelmulde (3) befestigt ist und an dem wiederum die beiden Platten (4,5) fixiert sind.12. Roof water inlet according to one of claims 1 to 11, characterized by a gravel ring (8) which is releasably attached to the water collecting trough (3) and to which in turn the two plates (4, 5) are fixed.
13. Dachwassereinlauf nach Anspruch 12, dadurch gekennzeichnet, dass der Kiesring (8) mittels einer Rast¬ verbindung (3d,8c) lösbar an der wassersammelmulde (3) be¬ festigt ist.13. Roof water inlet according to claim 12, characterized in that the gravel ring (8) by means of a locking connection (3d, 8c) is releasably attached to the water collecting trough (3).
14. Dachwassereinlauf nach Anspruch 12 oder 13, dadurch gekennzeichnet, dass der Kiesring (8) die beiden Platten (4,5) und/oder den Laubfang (7) mit der Wassersam¬ melmulde (3) verbindet.14. Roof water inlet according to claim 12 or 13, characterized in that the gravel ring (8) connects the two plates (4, 5) and / or the leaf trap (7) with the water collecting trough (3).
15. Dachwassereinlauf nach einem der Ansprüche 1 bis 14, gekennzeichnet durch eine Einheit (9) aus den beiden Platten (4,5), einem Laubfang (7) und einem Ueber¬ laufrohr (6) . 15. Roof water inlet according to one of claims 1 to 14, characterized by a unit (9) from the two plates (4, 5), a leaf trap (7) and an overflow pipe (6).
EP95900598A 1993-12-01 1994-11-29 Roof-water run-in Expired - Lifetime EP0681633B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH3577/93 1993-12-01
CH357793 1993-12-01
PCT/CH1994/000229 WO1995015423A1 (en) 1993-12-01 1994-11-29 Roof-water run-in

Publications (2)

Publication Number Publication Date
EP0681633A1 true EP0681633A1 (en) 1995-11-15
EP0681633B1 EP0681633B1 (en) 1997-09-10

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ID=4258993

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US (1) US5702596A (en)
EP (1) EP0681633B1 (en)
JP (1) JPH08506396A (en)
CN (1) CN1062628C (en)
AT (1) ATE158047T1 (en)
AU (1) AU677734B2 (en)
CA (1) CA2153262A1 (en)
CZ (1) CZ285295B6 (en)
DE (2) DE9416495U1 (en)
DK (1) DK0681633T3 (en)
ES (1) ES2109082T3 (en)
FI (1) FI108952B (en)
HK (1) HK1000366A1 (en)
MY (1) MY111425A (en)
NO (1) NO304473B1 (en)
SG (1) SG49561A1 (en)
WO (1) WO1995015423A1 (en)

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Publication number Publication date
NO952125D0 (en) 1995-05-30
HK1000366A1 (en) 1998-03-06
EP0681633B1 (en) 1997-09-10
SG49561A1 (en) 1998-06-15
US5702596A (en) 1997-12-30
CZ285295B6 (en) 1999-06-16
FI953648A (en) 1995-07-31
MY111425A (en) 2000-04-29
FI108952B (en) 2002-04-30
CA2153262A1 (en) 1995-06-08
AU677734B2 (en) 1997-05-01
DE59404034D1 (en) 1997-10-16
CN1117305A (en) 1996-02-21
DK0681633T3 (en) 1998-04-06
CZ153695A3 (en) 1995-11-15
DE9416495U1 (en) 1994-12-01
NO952125L (en) 1995-07-25
JPH08506396A (en) 1996-07-09
AU8138394A (en) 1995-06-19
FI953648A0 (en) 1995-07-31
WO1995015423A1 (en) 1995-06-08
ATE158047T1 (en) 1997-09-15
ES2109082T3 (en) 1998-01-01
NO304473B1 (en) 1998-12-21
CN1062628C (en) 2001-02-28

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