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EP0965694A1 - Suction device for articulated utility vehicles - Google Patents

Suction device for articulated utility vehicles Download PDF

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Publication number
EP0965694A1
EP0965694A1 EP99440128A EP99440128A EP0965694A1 EP 0965694 A1 EP0965694 A1 EP 0965694A1 EP 99440128 A EP99440128 A EP 99440128A EP 99440128 A EP99440128 A EP 99440128A EP 0965694 A1 EP0965694 A1 EP 0965694A1
Authority
EP
European Patent Office
Prior art keywords
suction
chassis
duct
suction device
elements
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
EP99440128A
Other languages
German (de)
French (fr)
Other versions
EP0965694B1 (en
Inventor
Nicolas Jungo
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Internationale Stiftung fur Technisches Know How
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 Internationale Stiftung fur Technisches Know How filed Critical Internationale Stiftung fur Technisches Know How
Publication of EP0965694A1 publication Critical patent/EP0965694A1/en
Application granted granted Critical
Publication of EP0965694B1 publication Critical patent/EP0965694B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 present invention relates to a suction device intended to be used on articulated road vehicles, such as, for example, urban sweepers.
  • Vehicles of this type mainly consist of a chassis articulated, comprising at least two axles and to which can be connected cleaning means such as brushes or brooms, means suction, a receptacle to receive the sucked residues, possibly a sufficient capacity water tank and a ordered.
  • cleaning means such as brushes or brooms
  • suction means suction
  • a receptacle to receive the sucked residues, possibly a sufficient capacity water tank and a ordered.
  • the chassis is actually composed of two half-chassis, the front part receiving the suction means and the rear part receiving the tank and the motorization elements.
  • the suction means comprise a suction turbine and means for the collection and transfer of waste aspirated up to receptacle,
  • suction means most often consist of one or more several pipes connected to suction nozzles.
  • the waste is generally humidified just before aspiration, to facilitate their transfer to the bottom of the tank. This makes it possible to link them and avoid a rejection of dust through the turbine.
  • the lower part of the suction duct is connected to the chassis front of the vehicle by its nozzle, which is arranged so as to collect the waste collected on the front or on the sides by brooms or brushes.
  • the receiving tank is mounted on the rear part of the chassis.
  • the suction hose is therefore subject to various constraints which arise from the articulation between the two parts of the chassis.
  • road vehicles Due to the function assigned to them, road vehicles are very dependent on the configuration and size of the channels on which they move. They have to make turns frequent and abrupt, and large amplitude turning movements, for example to avoid an obstacle or to bypass a vehicle parked along a sidewalk.
  • bent parts undergo a strong abrasion under the effect of sands and granular waste sucked off, which causes very wear fast.
  • the invention proposes to remedy these various drawbacks by realizing a suction device comprising a completely straight duct between the two parts of the chassis.
  • the device according to the invention comprises a conduit in two elements, each element being completely integral with the part of chassis to which it is connected, the two elements also comprising covering means at their respective free ends.
  • the device according to the present invention which is designated by the reference general (1), is mounted on the chassis (2) of a road vehicle.
  • the chassis (2) is composed of a front part (12) and a rear part (22), connected together by an articulation (3) of any type.
  • the suction means (not shown) are arranged under the part before (12).
  • the receiving tank (4) of the aspirated waste is mounted on the rear part (22).
  • a suction duct (6) connects the front part (12) and the rear part (22).
  • the ends (16) and (26) of the conduit (6) are integral, respectively of the tank (4) and of the front part (12) of the chassis (2).
  • the end (16) of the conduit (6) covers an orifice formed in correspondence in the wall of the tank for the passage of waste aspirated.
  • the conduit (6) consists of two separate elements (7) and (8).
  • each of the two elements (7, 8) has a flange in the form of a collar (9).
  • the flanges will be substantially oval.
  • the two elements (7, 8) forming the conduit (6) are arranged end-to-end, in the axis of the articulation of the vehicle chassis, and the end flanges (9) of each of the parts are arranged one against the other.
  • the rotation of the flanges (9) does not affect the tightness of the device, nor the overall position of the duct which remains substantially straight. Indeed, the oval shape of the flanges forming the flanges (9) ensures a minimal but constant overlap, even in the turning position full. During suction, the flanges are pressed against each other the other, which seals the device.
  • the width of the flanges (9) makes it possible to make up for the offset in ellipse between the two elements (8) and (9) when the vehicle is turning.
  • suction device is not limited to the form of embodiment described above, and may receive any variant without it is beyond the scope of the invention.
  • the dimensions of the conduits may be any.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Refuse-Collection Vehicles (AREA)

Abstract

The suction trailer for a road sweeper has a chassis in two sections which are articulated together with a receptacle for the waste. The pump has a turbine with a duct. The duct has two sections (7,8) with the free ends (16,26) fixed to the bin (4) and the front of the chassis.

Description

La présente invention concerne un dispositif d'aspiration prévu pour être utilisé sur des véhicules de voirie articulés, tels que par exemple, des balayeuses urbaines.The present invention relates to a suction device intended to be used on articulated road vehicles, such as, for example, urban sweepers.

Les véhicules de ce type se composent, pour l'essentiel, d'un châssis articulé, comportant au moins deux essieux et auquel peuvent être reliés les moyens de nettoyage tels que des brosses ou balais, des moyens d'aspiration, un réceptacle pour recevoir les résidus aspirés, éventuellement un réservoir d'eau de capacité suffisante et un poste de commande.Vehicles of this type mainly consist of a chassis articulated, comprising at least two axles and to which can be connected cleaning means such as brushes or brooms, means suction, a receptacle to receive the sucked residues, possibly a sufficient capacity water tank and a ordered.

Le châssis est en fait composé de deux demi-châssis, la partie avant recevant les moyens d'aspiration et la partie arrière recevant la cuve et les éléments de motorisation.The chassis is actually composed of two half-chassis, the front part receiving the suction means and the rear part receiving the tank and the motorization elements.

Les moyens d'aspiration comportent une turbine d'aspiration et des moyens pour la collecte et le transfert des déchets aspirés jusqu'au réceptacle,The suction means comprise a suction turbine and means for the collection and transfer of waste aspirated up to receptacle,

Ces moyens d'aspiration sont le plus souvent constitués d'un ou de plusieurs tuyaux reliés à des buses d'aspiration.These suction means most often consist of one or more several pipes connected to suction nozzles.

Pour aspirer les déchets, on créé une dépression à l'intérieur du réceptacle.To vacuum the waste, a vacuum is created inside the receptacle.

Les déchets sont en général humidifiés juste avant aspiration, pour faciliter leur transfert jusqu'au fond de la cuve. Ceci permet de les lier et d'éviter un rejet des poussières au travers de la turbine.The waste is generally humidified just before aspiration, to facilitate their transfer to the bottom of the tank. This makes it possible to link them and avoid a rejection of dust through the turbine.

Ces modalités sont sources de nombreux problèmes, qui obèrent ou limitent la fiabilité des opérations d'aspiration.These methods are the source of many problems, which obstruct or limit the reliability of suction operations.

En effet, la partie inférieure du conduit d'aspiration est reliée au châssis avant du véhicule par sa buse, qui est disposée de manière à recueillir les déchets collectés sur l'avant ou sur les côtés par les balais ou brosses. Par contre, la cuve réceptrice est montée sur la partie arrière du châssis.Indeed, the lower part of the suction duct is connected to the chassis front of the vehicle by its nozzle, which is arranged so as to collect the waste collected on the front or on the sides by brooms or brushes. Through on the other hand, the receiving tank is mounted on the rear part of the chassis.

Le tuyau d'aspiration est donc soumis aux diverses contraintes qui découlent de l'articulation entre les deux parties du châssis.The suction hose is therefore subject to various constraints which arise from the articulation between the two parts of the chassis.

Du fait de la fonction qui leur est assignée, les véhicules de voiries sont très dépendants de la configuration et de l'encombrement des voies sur lesquelles ils se déplacent. Ils sont amenés à effectuer des virages fréquents et brusques, et des mouvements de braquage de forte amplitude, par exemple pour éviter un obstacle ou contourner un véhicule garé le long d'un trottoir.Due to the function assigned to them, road vehicles are very dependent on the configuration and size of the channels on which they move. They have to make turns frequent and abrupt, and large amplitude turning movements, for example to avoid an obstacle or to bypass a vehicle parked along a sidewalk.

Les tuyaux d'aspiration sont de ce fait exposés à des chocs et des contraintes répétés, et leur durée de vie s'en trouve fortement limitée.As a result, the suction hoses are exposed to shocks and repeated stresses, and their lifespan is greatly limited.

Pour remédier à ces inconvénients, on a cherché à remplacer les tuyaux flexibles par des éléments moins fragiles, composés de plusieurs conduits rigides ou semi-rigides, assemblés entre eux par des coudes.To overcome these drawbacks, we tried to replace the pipes flexible by less fragile elements, composed of several conduits rigid or semi-rigid, joined together by elbows.

Cette solution n'est pas pleinement satisfaisante. En effet, les points de liaison entre les éléments tubulaires rigides et les parties coudées constituent autant de zones d'affaiblissement, avec des risques de perte d'étanchéité.This solution is not fully satisfactory. Indeed, the points of connection between the rigid tubular elements and the bent parts constitute as many weakening zones, with risks of loss sealing.

De plus, les parties coudées subissent une forte abrasion sous l'effet des sables et déchets granuleux aspirés, ce qui engendre une usure très rapide.In addition, the bent parts undergo a strong abrasion under the effect of sands and granular waste sucked off, which causes very wear fast.

Il est par ailleurs nécessaire de prévoir des roulements périphériques au niveau de la liaison entre deux éléments de conduits, afin d'accompagner les déplacements et les mouvements du châssis du véhicule.It is also necessary to provide peripheral bearings at the level of the connection between two elements of conduits, in order to accompany displacements and movements of the vehicle chassis.

Cet agencement pose problème, car l'aspiration des déchets se fait le plus souvent à vitesse élevée, ce qui augmente les risques d'obturation ou de perforation des conduits, dans les parties non rectilignes, et augmente le coût de revient des installations.This arrangement is problematic, because the suction of waste is done most often at high speed, which increases the risk of blockage or perforation of the conduits, in the non-rectilinear parts, and increases the cost of the installations.

L'invention se propose de remédier à ces divers inconvénients en réalisant un dispositif d'aspiration comportant un conduit totalement rectiligne entre les deux parties du châssis.The invention proposes to remedy these various drawbacks by realizing a suction device comprising a completely straight duct between the two parts of the chassis.

Plus particulièrement, le dispositif selon l'invention comporte un conduit en deux éléments, chaque élément étant totalement solidaire de la partie de châssis à laquelle il est relié, les deux éléments comportant par ailleurs des moyens de recouvrements à leurs extrémités libres respectives.More particularly, the device according to the invention comprises a conduit in two elements, each element being completely integral with the part of chassis to which it is connected, the two elements also comprising covering means at their respective free ends.

L'invention sera décrite ci-après à l'aide d'un exemple non limitatif de réalisation, et en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une vue de trois quart avant montrant le conduit d'un dispositif d'aspiration selon l'invention, monté entre les deux parties du châssis articulé d'un véhicule de voirie
  • la figure 2 est une vue du dessus de l'ensemble représenté à la figure 1, et
  • la figure 3 est une vue de détail de l'extrémité du conduit, montrant les moyens de recouvrement.
The invention will be described below with the aid of a non-limiting example of embodiment, and with reference to the accompanying drawings, in which:
  • Figure 1 is a three quarter front view showing the duct of a suction device according to the invention, mounted between the two parts of the articulated chassis of a road vehicle
  • FIG. 2 is a top view of the assembly shown in FIG. 1, and
  • Figure 3 is a detail view of the end of the duct, showing the covering means.

En référence aux figures annexées, et notamment la figure 1, le dispositif d'aspiration selon la présente invention, qui est désigné sous la référence générale (1), est monté sur le châssis (2) d'un véhicule de voirie.With reference to the appended figures, and in particular FIG. 1, the device according to the present invention, which is designated by the reference general (1), is mounted on the chassis (2) of a road vehicle.

Le châssis (2) est composée d'une partie avant (12) et d'une partie arrière (22), reliées entre elle par une articulation (3) de type quelconque.The chassis (2) is composed of a front part (12) and a rear part (22), connected together by an articulation (3) of any type.

Les moyens d'aspiration (non représentés) sont disposés sous la partie avant (12). La cuve de réception (4) des déchets aspirés est montée sur la partie arrière (22). The suction means (not shown) are arranged under the part before (12). The receiving tank (4) of the aspirated waste is mounted on the rear part (22).

Un conduit d'aspiration (6) relie la partie avant (12) et la partie arrière (22).A suction duct (6) connects the front part (12) and the rear part (22).

Les extrémités (16) et (26) du conduit (6) sont solidaires, respectivement de la cuve (4) et de la partie avant (12) du châssis (2).The ends (16) and (26) of the conduit (6) are integral, respectively of the tank (4) and of the front part (12) of the chassis (2).

L'extrémité (16) du conduit (6) recouvre un orifice ménagé en correspondance dans la paroi de la cuve pour le passage des déchets aspirés.The end (16) of the conduit (6) covers an orifice formed in correspondence in the wall of the tank for the passage of waste aspirated.

Le conduit (6) est constitué de deux éléments distincts (7) et (8).The conduit (6) consists of two separate elements (7) and (8).

L'extrémité libre de chacun des deux éléments (7, 8) comporte un rebord en forme de collerette (9).The free end of each of the two elements (7, 8) has a flange in the form of a collar (9).

De manière préférentielle, les collerettes seront sensiblement ovales.Preferably, the flanges will be substantially oval.

Lorsque le dispositif est monté sur un châssis, les deux éléments (7, 8) formant le conduit (6) sont disposées bout-à-bout, dans l'axe de l'articulation du châssis du véhicule, et les collerettes d'extrémité (9) de chacune des parties sont disposées l'une contre l'autre.When the device is mounted on a chassis, the two elements (7, 8) forming the conduit (6) are arranged end-to-end, in the axis of the articulation of the vehicle chassis, and the end flanges (9) of each of the parts are arranged one against the other.

Lorsque pour une raison quelconque, le véhicule de voirie effectue un virage ou un mouvement de braquage, le mouvement est transmis aux collerettes (9), mais les éléments (7) et (8) restent quasiment alignés dans l'axe d'articulation du châssis.When for any reason the road vehicle performs a turning or turning movement, the movement is transmitted to flanges (9), but the elements (7) and (8) remain almost aligned in the hinge axis of the chassis.

La rotation des collerettes (9) n'affecte ni l'étanchéité du dispositif, ni la position d'ensemble du conduit qui reste sensiblement rectiligne. En effet, la forme ovale des rebords formant les collerettes (9) assure un recouvrement minimal mais constant, même en position de braquage complet. Pendant l'aspiration, les collerettes sont plaqués l'une contre l'autre, ce qui assure l'étanchéité du dispositif.The rotation of the flanges (9) does not affect the tightness of the device, nor the overall position of the duct which remains substantially straight. Indeed, the oval shape of the flanges forming the flanges (9) ensures a minimal but constant overlap, even in the turning position full. During suction, the flanges are pressed against each other the other, which seals the device.

La largeur des collerettes (9) permet de rattraper le décalage en ellipse entre les deux éléments (8) et (9) lorsque le véhicule braque. The width of the flanges (9) makes it possible to make up for the offset in ellipse between the two elements (8) and (9) when the vehicle is turning.

Bien entendu, le dispositif d'aspiration n'est pas limité à la forme de réalisation décrite ci-dessus , et pourra recevoir toute variante sans que l'on sorte du cadre de l'invention.Of course, the suction device is not limited to the form of embodiment described above, and may receive any variant without it is beyond the scope of the invention.

En particulier, les dimensions des conduits pourront être quelconques.In particular, the dimensions of the conduits may be any.

Claims (4)

Dispositif d'aspiration pour véhicule de voirie articulé, comportant un châssis en deux parties articulées, un réceptacle pour recevoir les résidus aspirés, éventuellement un réservoir d'eau de capacité suffisante et des moyens d'aspiration composés d'une turbine d'aspiration et d'un conduit d'aspiration, caractérisé en ce que ledit conduit (6) comporte deux parties (7) et (8), dont les extrémités libres (16) et (26) sont solidaires, respectivement de la cuve (4) et de la partie avant (12) du châssis (2).Suction device for articulated road vehicle, comprising a chassis in two articulated parts, a receptacle for receiving residues aspirated, possibly a water tank of sufficient capacity and suction means composed of a suction turbine and a duct suction, characterized in that said duct (6) has two parts (7) and (8), the free ends (16) and (26) of which are integral, respectively of the tank (4) and the front part (12) of the chassis (2). Dispositif d'aspiration suivant la revendication 1, caractérisé en ce que l'extrémité libre de chacun des deux éléments (7, 8) comporte un rebord en forme de collerette (9).Suction device according to claim 1, characterized in that the free end of each of the two elements (7, 8) has a rim in collar shape (9). Dispositif selon la revendication 2, caractérisé en ce que les collettes (9) sont de forme sensiblement ovale, de manière à assurer un recouvrement minimal mais constant, quel que soit l'angle de braquage du véhiculeDevice according to claim 2, characterized in that the collars (9) are substantially oval in shape, so as to ensure overlap minimal but constant, regardless of the steering angle of the vehicle Dispositif d'aspiration suivant l'une des revendications 2 ou 3, caractérisé en ce que les deux éléments (7, 8) formant le conduit (6) sont disposés bout-à-bout, dans l'axe de l'articulation du châssis du véhicule, les collerettes d'extrémité (9) de chacune des parties étant disposées l'une contre l'autre, pour former un conduit totalement rectiligne.Suction device according to one of claims 2 or 3, characterized in that the two elements (7, 8) forming the conduit (6) are arranged end-to-end, in the axis of the articulation of the vehicle chassis, the end flanges (9) of each of the parts being arranged one against the other, to form a completely straight duct.
EP19990440128 1998-06-04 1999-06-01 Suction device for articulated utility vehicles Expired - Lifetime EP0965694B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9807137 1998-06-04
FR9807137A FR2779454B1 (en) 1998-06-04 1998-06-04 SUCTION DEVICE FOR ARTICULATED ROAD VEHICLES

Publications (2)

Publication Number Publication Date
EP0965694A1 true EP0965694A1 (en) 1999-12-22
EP0965694B1 EP0965694B1 (en) 2005-02-02

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Application Number Title Priority Date Filing Date
EP19990440128 Expired - Lifetime EP0965694B1 (en) 1998-06-04 1999-06-01 Suction device for articulated utility vehicles

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EP (1) EP0965694B1 (en)
DE (1) DE69923498T2 (en)
FR (1) FR2779454B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2912433B1 (en) * 2007-02-14 2011-07-01 Jungo Voirie SUCTION PIPE FOR ARTICULATED STEERING ROAD VEHICLE
DE102010040790B4 (en) * 2010-09-15 2014-06-12 Max Holder Gmbh Self-propelled vehicle with sweeping device receiving device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772438A (en) * 1952-04-15 1956-12-04 Diaz Juan Vacuum debris collector and incinerator
DE2541108A1 (en) * 1974-12-20 1976-06-24 Rapid Masch Fahrzeuge Ag Articulated road sweeping machine with knee joint steering - pneumatic suction rubbish collector mechanism
US4578840A (en) * 1984-06-04 1986-04-01 General Resource Corp. Mobile vacuum machine
WO1987001404A1 (en) * 1985-08-31 1987-03-12 Morningfield Limited Cleaning vehicles
DE8707111U1 (en) * 1987-05-18 1987-07-16 Mulag Fahrzeugwerk Heinz Wössner GmbH u. Co KG, 7605 Bad Peterstal-Griesbach Mobile vacuum cleaning device for roadsides etc.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772438A (en) * 1952-04-15 1956-12-04 Diaz Juan Vacuum debris collector and incinerator
DE2541108A1 (en) * 1974-12-20 1976-06-24 Rapid Masch Fahrzeuge Ag Articulated road sweeping machine with knee joint steering - pneumatic suction rubbish collector mechanism
US4578840A (en) * 1984-06-04 1986-04-01 General Resource Corp. Mobile vacuum machine
WO1987001404A1 (en) * 1985-08-31 1987-03-12 Morningfield Limited Cleaning vehicles
DE8707111U1 (en) * 1987-05-18 1987-07-16 Mulag Fahrzeugwerk Heinz Wössner GmbH u. Co KG, 7605 Bad Peterstal-Griesbach Mobile vacuum cleaning device for roadsides etc.

Also Published As

Publication number Publication date
FR2779454A1 (en) 1999-12-10
DE69923498T2 (en) 2006-01-26
EP0965694B1 (en) 2005-02-02
DE69923498D1 (en) 2005-03-10
FR2779454B1 (en) 2000-09-22

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