EP0940504B1 - Surface-cleaning apparatus - Google Patents

Surface-cleaning apparatus Download PDF

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Publication number
EP0940504B1
EP0940504B1 EP99103900A EP99103900A EP0940504B1 EP 0940504 B1 EP0940504 B1 EP 0940504B1 EP 99103900 A EP99103900 A EP 99103900A EP 99103900 A EP99103900 A EP 99103900A EP 0940504 B1 EP0940504 B1 EP 0940504B1
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EP
European Patent Office
Prior art keywords
section
suction
suction line
reservoir
surface cleaning
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EP99103900A
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German (de)
French (fr)
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EP0940504A2 (en
EP0940504A3 (en
Inventor
Roland Lorenz
Ingo Nowakowski
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum

Definitions

  • the invention relates to a surface cleaning vehicle according to the Preamble of claim 1.
  • a fan creates a negative pressure in the collection container, so that arranged by means of a rear of the vehicle Suction device consisting of a suction mouth and a suction line rubbish get into the collection container from the traffic area can.
  • the collection container has an emptying opening that lockable via a swiveling rear emptying flap is.
  • Known surface cleaning vehicles use a flexible Suction line to the chassis parts of the vehicle when routing the lines from the position of the suction mouth to the entry into to bypass the collection container while raising and to lower the suction mouth. Surrender there are sometimes very long lines and numerous bends, which the flow resistance in the suction line undesirable increase. Especially with an arrangement at the rear of the vehicle it is common to have the suction line in the upper area of the rear emptying flap through this into the collection container to lead. The suction line must then be such that it when the rear emptying flap is opened, its path also adapts.
  • US-4,160,302 describes a surface cleaning vehicle with a middle area of a collecting container arranged suction device, the at least one lifting and lowering suction mouth and one with the Suction pipe connected and leading into the collecting container having.
  • the suction line is essentially straight from the suction mouth inserted the collection container.
  • the suction line has a first the suction mouth extending to the bottom of the collecting container flexible section on which is a lifting and lowering of the suction allows.
  • the first section includes within the Collection container arranged second section, which in a deflection and Raises the calming area of the collecting container.
  • the emptying of the Collection container is via a swiveling emptying flap at the rear possible. There is also the possibility of the entire collection container from uncouple the vehicle.
  • a rear-side arrangement of the suction device or the suction line allows larger radii (FR-A-2 408 691).
  • the rear arrangement requires however, a suction line that is not a hindrance during the emptying process.
  • the object of the invention is based on this prior art based on a surface cleaning vehicle with a suction device to improve in that on the one hand low flow losses in the Suction line are available, on the other hand with a rear arrangement the emptying process is not hindered by the suction line.
  • This task is performed on a surface cleaning vehicle the preamble of claim 1 by the in the characterizing Part specified features solved.
  • the invention avoids long when guiding the suction line Ways.
  • the suction line runs from the suction mouth to the collecting container, into which it enters through its bottom in the rear section, straight. This results in a very short cable routing the both because of their brevity and because of the waiver a very low flow resistance on every curve having.
  • a hindrance when emptying the collection container through the further up into the redirection and calming space protruding suction line is divided by the Suction line into the lower section and the upper section, who when opening the rear emptying flap from the Removable area of the discharge opening is avoided.
  • a seal is arranged in the suction line. This seal ensures that the pressure ratios throughout Not suction line when the rear emptying flap is closed through the transition from the first to the second section of the suction line are influenced and therefore the entire intake Garbage only through the upper end of the suction line into the collection container exit.
  • a further development provides that the collection container for emptying is tiltable and that between that in the collection container entering first section of the suction line and a recess a seal is arranged in the bottom of the collecting container is. This seal allows when the collection container is tilted a separation of its bottom from the first section of the Suction line for the purpose of emptying, but ensures one pressure tight closure between a recess in the bottom of the Container and the suction line during cleaning operation.
  • Suction mouth arranged under the rear of the collecting container. There in the suction line can not interfere with this part of the chassis at any position of the suction mouth over the Width of the vehicle viewed directly from the suction mouth be led to the bottom of the collecting container. This applies also, if several suction mouths and suction lines in parallel next to each other available.
  • the suction mouth is preferably coaxial when lifting and lowering led to the axis of the suction line.
  • the suction line will then only on compression or extension, however no longer subjected to bending. This does not result in any additional Length reserve of the suction line required.
  • the suction line runs perpendicular to the contact area of the vehicle. This orientation leads to the shortest connection between the suction mouth and the bottom of the collecting container.
  • the first section or part of the first section of the Suction line can be designed as a corrugated hose. There with this version does not seal any parts that can move against each other this version is characterized by a high level of tightness against secondary air.
  • the first section or part of the first Section of the suction line as a telescope made of rigid pipe parts be trained.
  • the Interior walls apart from one or more changes in diameter because of the telescope construction make it completely smooth. This results in a minimal flow resistance.
  • the surface cleaning vehicle 10 shows a surface cleaning vehicle 10, which comprises a collecting container 12 for receiving rubbish. An additional water tank can be placed under the bottom of the collecting tank 12 may be arranged.
  • the surface cleaning vehicle 10 further includes a suction device 14 for receiving von Waste and one not shown in this drawing Fan, the one in the container 12 for operation the suction device 14 generates the required negative pressure.
  • the suction device 14 is at the rear of the surface cleaning vehicle 10 arranged, immediately behind the Rear axle 16 under the rear projection of the collecting container 12.
  • the suction device 14 comprises a suction mouth 18 and a suction line 20 through the bottom 22 of the collecting container 12 enters this.
  • the suction line 20 is vertical aligned and runs completely straight from the suction mouth 18 to its upper outlet opening 24. Due to the negative pressure in the collecting container 12 there is a volume flow in the suction device 14 generates the 18 rubbish when the suction mouth is lowered from the traffic area 26 through the suction mouth 18 and the suction line 20 carries in the collection container 12, where the Rubbish then deposited.
  • the outlet opening 24 of the suction line 20 ends in front of one Baffle plate 28 in a deflection and calming area 30 of the Collection container 12.
  • the contents of the collection container 12 can passed through a discharge opening 32 to a landfill become.
  • the emptying opening 32 is through a rear emptying flap 34 closed in operation and can be used for purposes be opened for emptying.
  • the suction line 20 divided into a first section 36 that is flush closes with the bottom 22 of the collecting container 12 and into one second section 38, with the rear emptying flap closed 34 forms the continuation of the first section 36.
  • This second section 38 is with the rear emptying flap 34 connected. As a result, it opens when the rear emptying flap is opened 34 from the area of the emptying opening 32 the collecting container 12 removed and in again when closing brought a position in continuation of the first section 36.
  • the second section 38 is in one integrated inner projection 40 of the rear emptying flap 34.
  • the outlet opening 24 of the suction line 20 is from a flat area 42 which borders the formation of dirt pockets helps to avoid.
  • a suction seal 20 is arranged between the first section 36 and the second section 38 .
  • a seal between the first section 36 of the suction line 20 and the bottom 22 of the collecting container 12 are arranged.
  • the seals are designed here as a common seal 44.
  • the collection container 12 can be tilted for emptying and detached from the first section 36 of the suction line 20 become. After swiveling back, the seal then forms again a pressure-tight seal between the recess in the Bottom 22 of the collecting container 12 and the first section 36 the suction line 20.
  • the suction mouth 18 can be raised by means of a lifting cylinder 46 and be lowered.
  • a linear guide 48 ensures that when lifting and lowering the suction mouth 18 this coaxially Axis of the suction line 20 is guided.
  • a compression of the suction line 20 and when lowering Allowing expansion is part of the suction line 20 designed as a corrugated hose.
  • FIG. 2 In the schematic view of the rear area of the surface cleaning vehicle 10 from the rear according to FIG. 2 are three Suction devices 14 across the width of the surface cleaning vehicle 10 distributed.
  • the suction mouth 18 and suction lines 20th are designed and arranged so that they cover the entire Cover the width of the surface cleaning vehicle 10.
  • suction device 14 Due to the described design of the suction device 14 can the surface cleaning vehicle 10 with significantly less Satisfactory cleaning performance using energy provide as known designs. When calling for high-quality cleaning results can be achieved with more compact Fans can be reached. Doing so will be straight forward guided suction line 20 only the dirt absorption performance even more stable compared to known designs and also affects much lower flow resistance. Since there is also no additional excess over the Rear of the vehicle is present, the handiness and maneuverability of the vehicle is not impaired.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuse-Collection Vehicles (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Detergent Compositions (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

A street cleaning vehicle has a number of suction jets (18) held closely over the surface of the road behind the vehicle. The jets are vertical and are connected to corrugated flexible ducts (36) which run vertically into the top of the collecting tank. The upper sections (38) of the ducts separate from the lower sections when the container is opened and tipped. O-ring seals (44) between the ducts ensure a good suction effect.

Description

Die Erfindung betrifft ein Flächenreinigungsfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a surface cleaning vehicle according to the Preamble of claim 1.

Zur Reinigung von Verkehrsflächen werden Flächenreinigungsfahrzeuge eingesetzt, die mit einem Sammelbehälter ausgestattet sind. Ein Ventilator erzeugt einen Unterdruck im Sammelbehälter, so daß mittels einer am Fahrzeugheck angeordneten Saugvorrichtung aus einem Saugmund und einer Saugleitung Kehricht von der Verkehrsfläche in den Sammelbehälter gelangen kann. Der Sammelbehälter besitzt eine Entleerungsöffnung, die über eine schwenkbare Heckentleerungsklappe verschließbar ist.Surface cleaning vehicles are used to clean traffic areas used, which is equipped with a collection container are. A fan creates a negative pressure in the collection container, so that arranged by means of a rear of the vehicle Suction device consisting of a suction mouth and a suction line rubbish get into the collection container from the traffic area can. The collection container has an emptying opening that lockable via a swiveling rear emptying flap is.

Um eine hohe Saugwirkung und dementsprechend auch einen guten Reinigungseffekt zu erzielen, wird ein geringer Saugspalt benötigt. Daher muß im Betrieb ein geringer Abstand zwischen der zu reinigenden Verkehrsfläche und dem Saugmund eingehalten werden. Bei sonstigen Fahrten ist es jedoch zweckmäßig, den Saugmund auf großen Abstand zur Verkehrsfläche zu halten, damit er nicht durch Unebenheiten oder Hindernisse beschädigt wird. Zur Aktivierung und Passivierung muß der Saugmund daher angehoben und abgesenkt werden können.For a high suction effect and accordingly a good one To achieve a cleaning effect, a small suction gap is required. Therefore, a small distance between the traffic area to be cleaned and the suction mouth become. For other journeys, however, it is advisable keep the suction mouth at a large distance from the traffic area, so that it is not damaged by bumps or obstacles becomes. The suction mouth must therefore be activated and passivated can be raised and lowered.

Bekannte Flächenreinigungsfahrzeuge verwenden eine flexible Saugleitung, um Fahrwerkteile des Fahrzeugs bei der Leitungsführung von der Position des Saugmundes bis zum Eintritt in den Sammelbehälter zu umgehen und gleichzeitig die Anhebung und Absenkung des Saugmundes zu ermöglichen. Dabei ergeben sich teilweise sehr lange Leitungswege und zahlreiche Krümmungen, die den Strömungswiderstand in der Saugleitung unerwünscht erhöhen. Gerade bei einer Anordnung am Fahrzeugheck ist es üblich, die Saugleitung im oberen Bereich der Heckentleerungsklappe durch diese hindurch in den Sammelbehälter zu führen. Die Saugleitung muß dann so beschaffen sein, daß sie sich beim Öffnen der Heckentleerungsklappe auch deren Weg anpaßt.Known surface cleaning vehicles use a flexible Suction line to the chassis parts of the vehicle when routing the lines from the position of the suction mouth to the entry into to bypass the collection container while raising and to lower the suction mouth. Surrender there are sometimes very long lines and numerous bends, which the flow resistance in the suction line undesirable increase. Especially with an arrangement at the rear of the vehicle it is common to have the suction line in the upper area of the rear emptying flap through this into the collection container to lead. The suction line must then be such that it when the rear emptying flap is opened, its path also adapts.

Die US-4,160,302 beschreibt ein Flächenreinigungsfahrzeug mit einem im mittleren Bereich eines Sammelbehälters angeordneten Saugvorrichtung, die wenigstens einen anheb- und absenkbaren Saugmund und eine mit dem Saugmund verbundene und in den Sammelbehälter führende Saugleitung aufweist. Die Saugleitung wird im Wesentlichen geradlinig vom Saugmund in den Sammelbehälter hineingeführt. Die Saugleitung weist einen ersten sich von dem Saugmund bis zu dem Boden des Sammelbehälters erstreckenden flexiblen Abschnitt auf, der ein Anheben und Absenken des Saugens ermöglicht. Am ersten Abschnitt schließt sich ein innerhalb des Sammelbehälters angeordneter zweiter Abschnitt an, der in einen Umlenk- und Beruhigungsbereich des Sammelbehälters hinaufragt. Die Entleerung des Sammelbehälters ist über eine heckseitige schwenkbare Entleerungsklappe möglich. Ferner besteht die Möglichkeit, den gesamten Sammelbehälter von dem Fahrzeug abzukoppeln.US-4,160,302 describes a surface cleaning vehicle with a middle area of a collecting container arranged suction device, the at least one lifting and lowering suction mouth and one with the Suction pipe connected and leading into the collecting container having. The suction line is essentially straight from the suction mouth inserted the collection container. The suction line has a first the suction mouth extending to the bottom of the collecting container flexible section on which is a lifting and lowering of the suction allows. The first section includes within the Collection container arranged second section, which in a deflection and Raises the calming area of the collecting container. The emptying of the Collection container is via a swiveling emptying flap at the rear possible. There is also the possibility of the entire collection container from uncouple the vehicle.

Nachteilig bei diesem Flächenreinigungsfahrzeug ist, dass der mit aufgesaugten Festkörpern versetzte Luftstrom entlang eines Umlenkblechs stark abgelenkt werden muß, da die begrenzte Fahrzeugbreite keinen großzügigen Radius zulässt.The disadvantage of this surface cleaning vehicle is that the sucked-in solids displaced air flow along a baffle must be strongly distracted since the limited vehicle width does not generous radius.

Eine heckseitige Anordnung der Saugvorrichtung bzw. der Saugleitung erlaubt größere Radien (FR-A-2 408 691). Die heckseitige Anordnung erfordert dabei jedoch eine Saugleitung, die beim Entleerungsvorgang nicht hinderlich ist.A rear-side arrangement of the suction device or the suction line allows larger radii (FR-A-2 408 691). The rear arrangement requires however, a suction line that is not a hindrance during the emptying process.

Der Erfindung liegt ausgehend von diesem Stand der Technik die Aufgabe zugrunde, ein Flächenreinigungsfahrzeug mit einer Saugvorrichtung dahingehend zu verbessern, dass zum einen geringe Strömungsverluste in der Saugleitung vorhanden sind, zum anderen bei einer heckseitigen Anordnung der Entleerungsvorgang durch die Saugleitung nicht behindert wird.The object of the invention is based on this prior art based on a surface cleaning vehicle with a suction device to improve in that on the one hand low flow losses in the Suction line are available, on the other hand with a rear arrangement the emptying process is not hindered by the suction line.

Diese Aufgabe wird bei einem Flächenreinigungsfahrzeug nach dem Oberbegriff des Anspruchs 1 durch die im kennzeichnenden Teil angegebenen Merkmale gelöst.This task is performed on a surface cleaning vehicle the preamble of claim 1 by the in the characterizing Part specified features solved.

Weiterbildungen und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der weiteren Beschreibung.Further developments and advantageous refinements of the invention result from the subclaims and the others Description.

Die Erfindung vermeidet bei der Führung der Saugleitung lange Wege. Die Saugleitung verläuft vom Saugmund zum Sammelbehälter, in den sie durch dessen Boden im Heckteil eintritt, geradlinig. Dadurch ergibt sich eine sehr kurze Leitungsführung, die sowohl wegen ihrer Kürze als auch wegen des Verzichts auf jede Krümmung einen sehr geringen Strömungswiderstand aufweist. Eine Behinderung beim Entleeren des Sammelbehälters durch die weiter nach oben in den Umlenk- und Beruhigungsraum ragende Saugleitung wird durch Unterteilung der Saugleitung in den unteren Abschnitt und den oberen Abschnitt, der beim Öffnen der Heckentleerungsklappe aus dem Bereich der Entleerungsöffnung entfernbar ist, vermieden.The invention avoids long when guiding the suction line Ways. The suction line runs from the suction mouth to the collecting container, into which it enters through its bottom in the rear section, straight. This results in a very short cable routing the both because of their brevity and because of the waiver a very low flow resistance on every curve having. A hindrance when emptying the collection container through the further up into the redirection and calming space protruding suction line is divided by the Suction line into the lower section and the upper section, who when opening the rear emptying flap from the Removable area of the discharge opening is avoided.

Vorzugsweise ist zwischen dem ersten und dem zweiten Abschnitt der Saugleitung eine Dichtung angeordnet. Diese Dichtung sorgt dafür, daß die Druckverhältnisse in der gesamten Saugleitung bei geschlossener Heckentleerungsklappe nicht durch den Übergang vom ersten zum zweiten Abschnitt der Saugleitung beeinflußt werden und daher der gesamte angesaugte Kehricht nur durch das obere Ende der Saugleitung in den Sammelbehälter austritt.Is preferably between the first and the second section a seal is arranged in the suction line. This seal ensures that the pressure ratios throughout Not suction line when the rear emptying flap is closed through the transition from the first to the second section of the suction line are influenced and therefore the entire intake Garbage only through the upper end of the suction line into the collection container exit.

Eine Weiterbildung sieht vor, daß der Sammelbehälter zum Entleeren kippbar ist und daß zwischen dem in den Sammelbehälter eintretenden ersten Abschnitt der Saugleitung und einer Aussparung im Boden des Sammelbehälters eine Dichtung angeordnet ist. Diese Dichtung ermöglicht beim Kippen des Sammelbehälters eine Trennung seines Bodens vom ersten Abschnitt der Saugleitung zum Zwecke der Entleerung, aber sorgt für einen druckdichten Abschluß zwischen einer Aussparung im Boden des Behälters und der Saugleitung während des Reinigungsbetriebs.A further development provides that the collection container for emptying is tiltable and that between that in the collection container entering first section of the suction line and a recess a seal is arranged in the bottom of the collecting container is. This seal allows when the collection container is tilted a separation of its bottom from the first section of the Suction line for the purpose of emptying, but ensures one pressure tight closure between a recess in the bottom of the Container and the suction line during cleaning operation.

Bei einer vorteilhaften Ausgestaltung der Erfindung ist der Saugmund unter dem Heck des Sammelbehälters angeordnet. Da in diesem Bereich keine Fahrwerkteile stören, kann die Saugleitung bei jeder beliebigen Position des Saugmundes über die Breite des Fahrzeugs betrachtet auf direktem Wege vom Saugmund zum Boden des Sammelbehälters geführt werden. Dies gilt auch, wenn mehrere Saugmunde und Saugleitungen parallel nebeneinander vorhanden sind.In an advantageous embodiment of the invention Suction mouth arranged under the rear of the collecting container. There in the suction line can not interfere with this part of the chassis at any position of the suction mouth over the Width of the vehicle viewed directly from the suction mouth be led to the bottom of the collecting container. this applies also, if several suction mouths and suction lines in parallel next to each other available.

Vorzugsweise ist der Saugmund beim Anheben und Absenken koaxial zur Achse der Saugleitung geführt. Die Saugleitung wird dann nur noch lediglich auf Stauchung oder Streckung, jedoch nicht mehr auf Biegung beansprucht. Dadurch wird keine zusätzliche Längenreserve der Saugleitung benötigt.The suction mouth is preferably coaxial when lifting and lowering led to the axis of the suction line. The suction line will then only on compression or extension, however no longer subjected to bending. This does not result in any additional Length reserve of the suction line required.

Bei einer bevorzugten Ausgestaltung verläuft die Saugleitung senkrecht zur Aufstandsfläche des Fahrzeugs. Diese Ausrichtung führt zu der kürzesten Verbindung zwischen dem Saugmund und dem Boden des Sammelbehälters.In a preferred embodiment, the suction line runs perpendicular to the contact area of the vehicle. This orientation leads to the shortest connection between the suction mouth and the bottom of the collecting container.

Der erste Abschnitt oder ein Teil des ersten Abschnitts der Saugleitung kann als Wellschlauch ausgebildet sein. Da bei dieser Ausführung keine gegeneinander bewegbaren Teile abgedichtet werden müssen, zeichnet sich diese Ausführung durch eine hohe Dichtigkeit gegen Nebenluft aus.The first section or part of the first section of the Suction line can be designed as a corrugated hose. There with this version does not seal any parts that can move against each other this version is characterized by a high level of tightness against secondary air.

Alternativ kann der erste Abschnitt oder ein Teil des ersten Abschnitts der Saugleitung als Teleskop aus starren Rohrteilen ausgebildet sein. Bei dieser Ausführung lassen sich die Innenwände abgesehen von einer oder mehreren Durchmesserveränderungen wegen des Teleskopaufbaus völlig glatt gestalten. Dadurch ergibt sich ein minimaler Strömungswiderstand.Alternatively, the first section or part of the first Section of the suction line as a telescope made of rigid pipe parts be trained. In this version, the Interior walls apart from one or more changes in diameter because of the telescope construction make it completely smooth. This results in a minimal flow resistance.

Nachfolgend wird die Erfindung anhand der Zeichnung erläutert.The invention is explained below with reference to the drawing.

In der Zeichnung zeigen:

Fig. 1
einen schematischen Längsschnitt durch den Heckbereich eines Flächenreinigungsfahrzeugs,
Fig. 2
eine schematische Ansicht des Heckbereichs des Flächenreinigungsfahrzeugs von hinten.
The drawing shows:
Fig. 1
2 shows a schematic longitudinal section through the rear area of a surface cleaning vehicle,
Fig. 2
a schematic view of the rear area of the surface cleaning vehicle from behind.

In Fig. 1 ist ein Flächenreinigungsfahrzeug 10 dargestellt, das einen Sammelbehälter 12 zur Aufnahme von Kehricht umfaßt. Ein zusätzlicher Wasserbehälter kann unter dem Boden des Sammelbehälters 12 angeordnet sein. Das Flächenreinigungsfahrzeug 10 umfaßt ferner eine Saugvorrichtung 14 zur Aufnahme von Kehricht und einen in dieser Zeichnung nicht dargestellten Ventilator, der im Sammelbehälter 12 einen für den Betrieb der Saugvorrichtung 14 erforderlichen Unterdruck erzeugt.1 shows a surface cleaning vehicle 10, which comprises a collecting container 12 for receiving rubbish. An additional water tank can be placed under the bottom of the collecting tank 12 may be arranged. The surface cleaning vehicle 10 further includes a suction device 14 for receiving von Waste and one not shown in this drawing Fan, the one in the container 12 for operation the suction device 14 generates the required negative pressure.

Die Saugvorrichtung 14 ist am Fahrzeugheck des Flächenreinigungsfahrzeugs 10 angeordnet, und zwar unmittelbar hinter der Hinterachse 16 unter dem hinteren Überstand des Sammelbehälters 12. Die Saugvorrichtung 14 umfaßt einen Saugmund 18 und eine Saugleitung 20, die durch den Boden 22 des Sammelbehälters 12 in diesen eintritt. Die Saugleitung 20 ist senkrecht ausgerichtet und verläuft völlig geradlinig vom Saugmund 18 bis zu ihrer oberen Austrittsöffnung 24. Durch den Unterdruck im Sammelbehälter 12 wird in der Saugvorrichtung 14 ein Volumenstrom erzeugt, der bei abgesenktem Saugmund 18 Kehricht von der Verkehrsfläche 26 durch den Saugmund 18 und die Saugleitung 20 in den Sammelbehälter 12 mitführt, wo sich der Kehricht anschließend ablagert.The suction device 14 is at the rear of the surface cleaning vehicle 10 arranged, immediately behind the Rear axle 16 under the rear projection of the collecting container 12. The suction device 14 comprises a suction mouth 18 and a suction line 20 through the bottom 22 of the collecting container 12 enters this. The suction line 20 is vertical aligned and runs completely straight from the suction mouth 18 to its upper outlet opening 24. Due to the negative pressure in the collecting container 12 there is a volume flow in the suction device 14 generates the 18 rubbish when the suction mouth is lowered from the traffic area 26 through the suction mouth 18 and the suction line 20 carries in the collection container 12, where the Rubbish then deposited.

Die Austrittsöffnung 24 der Saugleitung 20 endet vor einer Prallplatte 28 in einem Umlenk- und Beruhigungsbereich 30 des Sammelbehälters 12. Der Inhalt des Sammelbehälters 12 kann durch eine Entleerungsöffnung 32 auf eine Deponie verbracht werden. Die Entleerungsöffnung 32 ist durch eine Heckentleerungsklappe 34 im Betrieb verschlossen und kann zum Zwecke der Entleerung geöffnet werden.The outlet opening 24 of the suction line 20 ends in front of one Baffle plate 28 in a deflection and calming area 30 of the Collection container 12. The contents of the collection container 12 can passed through a discharge opening 32 to a landfill become. The emptying opening 32 is through a rear emptying flap 34 closed in operation and can be used for purposes be opened for emptying.

Damit die Entleerung nicht durch die in den Sammelbehälter 12 hinaufragende Saugleitung 20 behindert wird, ist die Saugleitung 20 in einen ersten Abschnitt 36 unterteilt, der bündig mit dem Boden 22 des Sammelbehälters 12 abschließt und in einen zweiten Abschnitt 38, der bei geschlossener Heckentleerungsklappe 34 die Fortsetzung des ersten Abschnittes 36 bildet. Dieser zweite Abschnitt 38 ist mit der Heckentleerungsklappe 34 verbunden. Er wird dadurch beim Öffnen der Heckentleerungsklappe 34 aus dem Bereich der Entleerungsöffnung 32 des Sammelbehälters 12 entfernt und beim Schließen wieder in eine Position in Fortsetzung des ersten Abschnittes 36 gebracht.So that the emptying is not carried out by the container 12 protruding suction line 20 is hindered, the suction line 20 divided into a first section 36 that is flush closes with the bottom 22 of the collecting container 12 and into one second section 38, with the rear emptying flap closed 34 forms the continuation of the first section 36. This second section 38 is with the rear emptying flap 34 connected. As a result, it opens when the rear emptying flap is opened 34 from the area of the emptying opening 32 the collecting container 12 removed and in again when closing brought a position in continuation of the first section 36.

Im Ausführungsbeispiel ist der zweite Abschnitt 38 in einen inneren Vorsprung 40 der Heckentleerungsklappe 34 integriert. Dadurch ist die Austrittsöffnung 24 der Saugleitung 20 von einem ebenen Bereich 42 umsäumt, der die Bildung von Schmutznestern vermeiden hilft.In the exemplary embodiment, the second section 38 is in one integrated inner projection 40 of the rear emptying flap 34. As a result, the outlet opening 24 of the suction line 20 is from a flat area 42 which borders the formation of dirt pockets helps to avoid.

Zwischen dem ersten Abschnitt 36 und dem zweiten Abschnitt 38 der Saugleitung 20 ist eine Dichtung angeordnet. Ebenso ist eine Dichtung zwischen dem ersten Abschnitt 36 der Saugleitung 20 und dem Boden 22 des Sammelbehälters 12 angeordnet. Die Dichtungen sind hier als gemeinsame Dichtung 44 ausgeführt. Dadurch kann der Sammelbehälter 12 zur Entleerung gekippt und vom ersten Abschnitt 36 der Saugleitung 20 gelöst werden. Nach dem Zurückschwenken bildet die Dichtung dann wieder einen druckdichten Abschluß zwischen der Aussparung im Boden 22 des Sammelbehälters 12 und dem ersten Abschnitt 36 der Saugleitung 20.Between the first section 36 and the second section 38 a suction seal 20 is arranged. Likewise a seal between the first section 36 of the suction line 20 and the bottom 22 of the collecting container 12 are arranged. The seals are designed here as a common seal 44. As a result, the collection container 12 can be tilted for emptying and detached from the first section 36 of the suction line 20 become. After swiveling back, the seal then forms again a pressure-tight seal between the recess in the Bottom 22 of the collecting container 12 and the first section 36 the suction line 20.

Der Saugmund 18 kann mittels eines Hubzylinders 46 angehoben und abgesenkt werden. Eine Linearführung 48 sorgt dafür, daß beim Heben und Senken des Saugmundes 18 dieser koaxial zur Achse der Saugleitung 20 geführt wird. Um beim Anheben des Saugmundes 18 eine Stauchung der Saugleitung 20 und beim Absenkung eine Dehnung zu ermöglichen, ist ein Teil der Saugleitung 20 als Wellschlauch ausgebildet.The suction mouth 18 can be raised by means of a lifting cylinder 46 and be lowered. A linear guide 48 ensures that when lifting and lowering the suction mouth 18 this coaxially Axis of the suction line 20 is guided. To when lifting the Suction mouth 18 a compression of the suction line 20 and when lowering Allowing expansion is part of the suction line 20 designed as a corrugated hose.

Bei der schematischen Ansicht des Heckbereichs des Flächenreinigungsfahrzeugs 10 von hinten gemäß Fig. 2 sind drei Saugvorrichtungen 14 über die Breite des Flächenreinigungsfahrzeugs 10 verteilt. Die Saugmunde 18 und Saugleitungen 20 sind dabei so ausgebildet und angeordnet, daß sie die gesamte Breite des Flächenreinigungsfahrzeugs 10 überdecken.In the schematic view of the rear area of the surface cleaning vehicle 10 from the rear according to FIG. 2 are three Suction devices 14 across the width of the surface cleaning vehicle 10 distributed. The suction mouth 18 and suction lines 20th are designed and arranged so that they cover the entire Cover the width of the surface cleaning vehicle 10.

Aufgrund der beschriebenen Gestaltung der Saugvorrichtung 14 kann das Flächenreinigungsfahrzeug 10 mit erheblich geringerem Energieeinsatz zufriedenstellende Reinigungsleistungen erbringen als bekannte Ausführungen. Bei der Forderung nach hochwertigen Reinigungsergebnissen können diese mit kompakteren Ventilatoren erreicht werden. Dabei wird durch die geradlinig geführte Saugleitung 20 die Schmutzaufnahmeleistung nur noch durch den im Vergleich zu bekannten Ausführungen stabileren und dazu wesentlich geringeren Strömungswiderstand beeinflußt. Da außerdem kein zusätzlicher Überstand über das Heck des Fahrzeugs hinaus vorhanden ist, wird die Handlichkeit und Manöverierfähigkeit des Fahrzeugs nicht beeinträchtigt.Due to the described design of the suction device 14 can the surface cleaning vehicle 10 with significantly less Satisfactory cleaning performance using energy provide as known designs. When calling for high-quality cleaning results can be achieved with more compact Fans can be reached. Doing so will be straight forward guided suction line 20 only the dirt absorption performance even more stable compared to known designs and also affects much lower flow resistance. Since there is also no additional excess over the Rear of the vehicle is present, the handiness and maneuverability of the vehicle is not impaired.

Claims (8)

  1. A surface cleaning vehicle (10) with a reservoir (12), the emptying opening (32) of which is closable via a pivotable rear emptying flap (34), with a fan and with a suction device (14) which comprises at least one raisable and lowerable suction orifice (18) and at least one suction line (20) connected to the suction orifice (18) and leading into the reservoir (12), the suction line (20) extending rectilinearly from the suction orifice (18) into the reservoir (12) and being divided into a first section (36) which starts at the suction orifice (18) and terminates flush with the base (22) in the rear part of the reservoir (12), and a second section (38) which, when the rear emptying flap (34) is closed, extends upwards, in continuation of the first section (36) of the suction line (20), into a deflecting and calming zone (39) of the reservoir (12), the first section (36) and the second section (38) being adapted to be decoupled for the purpose of emptying the reservoir (12), characterised in that the suction device (14) is disposed at the rear of the vehicle, the second section (38) being connected to the rear emptying flap (34) and being removable from the region of the emptying opening (32) of the reservoir (12) by opening of the rear emptying flap (34).
  2. A surface cleaning vehicle according to claim 1, characterised in that a seal (44) is disposed between the first section (36) and the second section (38) of the suction line (20).
  3. A surface cleaning vehicle according to claim 1 or 2, characterised in that the reservoir (12) is adapted to be tipped for emptying purposes and in that another seal (44) is disposed between the first section (36) of the suction line (20) entering the reservoir (12) and an opening in the base (22) of the reservoir (22).
  4. A surface cleaning vehicle according to any one of claims 1 to 3, characterised in that the suction orifice (18) is disposed beneath the rear of the reservoir (12).
  5. A surface cleaning vehicle according to any one of claims 1 to 4, characterised in that the suction orifice (18) is guided coaxially to the axis of the suction line (20) during raising and lowering.
  6. A surface cleaning vehicle according to claim 4 or 5, characterised in that the suction line (20) extends perpendicularly to the vehicle contact surface.
  7. A surface cleaning vehicle according to any one of claims 1 to 6, characterised in that the first section (36) or part of the first section of the suction line (20) is constructed as a corrugated hose.
  8. A surface cleaning vehicle according to any one of claims 1 to 6, characterised in that the first section (36) or a part of the first section of the suction line (20) is constructed as a telescope consisting of rigid tubular parts.
EP99103900A 1998-03-05 1999-03-01 Surface-cleaning apparatus Expired - Lifetime EP0940504B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19809241 1998-03-05
DE19809241A DE19809241C2 (en) 1998-03-05 1998-03-05 Surface cleaning vehicle

Publications (3)

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EP0940504A2 EP0940504A2 (en) 1999-09-08
EP0940504A3 EP0940504A3 (en) 2000-05-10
EP0940504B1 true EP0940504B1 (en) 2004-05-26

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Application Number Title Priority Date Filing Date
EP99103900A Expired - Lifetime EP0940504B1 (en) 1998-03-05 1999-03-01 Surface-cleaning apparatus

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EP (1) EP0940504B1 (en)
AT (1) ATE267921T1 (en)
DE (2) DE19809241C2 (en)
DK (1) DK0940504T3 (en)

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DE10256251B4 (en) * 2002-12-03 2005-09-15 Fritz Sperber Gmbh & Co. Recording device for a receiving material, such as crop
CN109267525B (en) * 2018-10-06 2023-08-15 扬州三源机械有限公司 High-efficient washing and sweeping vehicle
CN109281274A (en) * 2018-10-23 2019-01-29 扬州三源机械有限公司 A kind of sweeper is servo-actuated after using and washes suction device
DE202019001250U1 (en) 2019-03-15 2019-04-09 Brock Kehrtechnik Gmbh Surface cleaning vehicle with a controllable suction device for reducing a flow cross-section
DE102019001845A1 (en) * 2019-03-15 2020-09-17 Brock Kehrtechnik Gmbh Surface cleaning vehicle with an adjustable suction device to reduce a flow cross-section
DE202019001541U1 (en) 2019-04-04 2019-05-20 Brock Kehrtechnik Gmbh Surface cleaning vehicle with a milling device for the renovation and cleaning of traffic areas
DE102019002510A1 (en) * 2019-04-04 2020-10-08 Brock Kehrtechnik Gmbh Area cleaning vehicle with a milling device for the rehabilitation and cleaning of traffic areas

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DE1119890B (en) * 1957-09-07 1961-12-21 Streicher Fa M Street sweeper with circular brushes arranged on both sides and with roller brush
DE1092498B (en) * 1959-01-08 1960-11-10 Schoerling & Co Waggonbau Sweeping machine that collects the waste by means of negative pressure
GB1592775A (en) * 1976-11-18 1981-07-08 Johnston Bros Eng Ltd Refuse collecting vehicles
FR2408691A1 (en) * 1977-11-10 1979-06-08 Costa Alain Self-propelled vehicle for collecting loose chippings from road - uses suction to draw chippings into tippable bin with separating screen
US4619010A (en) * 1984-04-04 1986-10-28 Cooper Industries, Inc. Scrubber with mechanism for automatically raising and lowering a squeegee assembly
FR2667334A1 (en) * 1990-10-02 1992-04-03 Secmair Sa Suction (vacuum) device for roadworks, for sweeping and suction of waste
DE9113985U1 (en) * 1991-11-11 1992-01-02 IKF Industrie- und Kommunalfahrzeuge GmbH, 8011 Brunnthal Self-propelled suction sweeper

Also Published As

Publication number Publication date
DE19809241C2 (en) 2000-07-06
EP0940504A2 (en) 1999-09-08
DE19809241A1 (en) 1999-09-16
ATE267921T1 (en) 2004-06-15
DE59909548D1 (en) 2004-07-01
DK0940504T3 (en) 2004-08-16
EP0940504A3 (en) 2000-05-10

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