EP2436842A1 - Ansaugleitung, die mit einer Düse mit abnehmbaren Teil ausgestattet ist, für Straßenreinigungsfahrzeuge mit Gelenklenkung - Google Patents

Ansaugleitung, die mit einer Düse mit abnehmbaren Teil ausgestattet ist, für Straßenreinigungsfahrzeuge mit Gelenklenkung Download PDF

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Publication number
EP2436842A1
EP2436842A1 EP10183189A EP10183189A EP2436842A1 EP 2436842 A1 EP2436842 A1 EP 2436842A1 EP 10183189 A EP10183189 A EP 10183189A EP 10183189 A EP10183189 A EP 10183189A EP 2436842 A1 EP2436842 A1 EP 2436842A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
suction duct
suction
duct
quick coupling
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.)
Withdrawn
Application number
EP10183189A
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English (en)
French (fr)
Inventor
Annette Wendling
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.)
Nilfisk AS
Original Assignee
ICEE GmbH
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 ICEE GmbH filed Critical ICEE GmbH
Priority to EP10183189A priority Critical patent/EP2436842A1/de
Publication of EP2436842A1 publication Critical patent/EP2436842A1/de
Withdrawn legal-status Critical Current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
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
    • E01H1/0845—Apparatus dislodging all of the dirt by suction ; Suction nozzles with mechanical loosening or feeding instruments for the dirt to be sucked- up, e.g. brushes, scrapers
    • 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
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles

Definitions

  • the present invention relates to a suction duct for use on a road maintenance vehicle with articulated steering, such as an urban sweeper with an articulated frame.
  • the public road vehicles comprise suction means that make it possible to collect various wastes lying on the zone to be treated.
  • the suction means are associated with a turbine intended to provide a flow of air making it possible to remove the debris from the ground, then to ensure the removal and distribution inside a receiving tank through a or more conduits.
  • This conduit has the main function of allowing the collection of different types of waste, solid or liquid, possibly resulting from a pretreatment operation performed at the front of the vehicle, and then to convey them to the tank.
  • the main problem to be solved is to allow the collection and conveying of all types of waste by allowing rapid adaptation of the suction duct to the required collection mode, while eliminating the risk of clogging at one point or another in the chain. elements.
  • suction ducts There are different types of suction ducts that can fulfill the various functions mentioned above.
  • suction devices that use flexible or flexible ducts.
  • This modality has the advantage of allowing the use of ducts in one piece, and secondly to facilitate their implementation and replacement.
  • this solution has a major drawback, insofar as it is never possible with a flexible conduit to obtain a perfectly straight path of the debris between the suction nozzle and the recovery tank, since by definition, the Flexible structure of the duct will be permeable to all deformations that result from external events, a rough path, or simply obstacles that can be encountered by the vehicle on its way. Repeated turns are also a factor of premature wear. Furthermore, the flexible conduit excludes the possibility of providing end fitting means.
  • suction duct of this type is illustrated in the document CA 2,450,512 , which describes a mobile vacuum vehicle comprising conventionally a cabin and a tank for the collection of waste, and suction means which are associated with a conduit of which a portion is flexible, more particularly the lower part directed towards the bottom and connected to the suction nozzle.
  • This modality has an obvious weakness, especially in the junction zone between the flexible part and the stiffened part of the suction duct, insofar as it necessarily induces a load break that may occur at this point, with deformations and therefore risks of clogging.
  • a second known method of the prior art consists in using rectilinear suction ducts, composed of at least one portion of rigid tube.
  • This solution although effective, nevertheless has a drawback due to the positioning of the ducts. Indeed, when a conduit of this type is used on road vehicles mounted on articulated frames, the conduit will necessarily pass in the axis of rotation of the frame, which means that the end of the suction pipe connected to the nozzle in the direction of the ground will necessarily be positioned behind the axis of the wheels, or the axle of the front part of the chassis.
  • This mode requires positioning the suction device very behind the vehicle, which will have the disadvantage of preventing any visibility from the operator. Furthermore, the performance is limited by the rear positioning of the duct, since too much distance will separate the nozzle mounted at the end of the duct and the waste collection means, with the risk of loss on the sides. This rear positioning also prohibits modulating the operation of the nozzle, for example by adapting various tools, without immobilization of the vehicle and disassembly / reassembly of the nozzle.
  • Rigid suction ducts are also known, which consist of several parts or portions of tube associated with each other by connecting elements, which may be either bends or connecting plates.
  • a solution of this type is for example described in the document DE 87 07 111 as well as in the document US 2,772,438 . This solution does not guarantee complete sealing.
  • the use of connecting elements causes premature wear of the various elements, with risks of unexpected rupture.
  • the present invention proposes to remedy the disadvantages mentioned above by providing a suction duct, one end of which is extended by a partially removable nozzle with quick coupling means allowing modulation between different modes of operation. suction, and the opposite end is connected directly to the lower part of the waste recovery tank without the use of connecting elements, while allowing a perfect visibility on the part of the operator by a positioning in front of the wheel axis of the vehicle.
  • a road vehicle which conventionally consists of a frame (1), which here is articulated in two parts, a front portion (1a) and a rear portion (1b).
  • the front part (1a) of the frame receives a cabin (2) from which the user can control and steer the vehicle and control the various accessories to perform the cleaning function of a specific area.
  • the waste collection means which consist here of two brushes (3a and 3b) mounted on a structure (4) allowing their deployment and their withdrawal. It should be clear that in the example shown, the waste collection means are brushes, but that other tools can be used, for example ramps or washing nozzles or tools for treating green spaces.
  • the rear part (1b) of the chassis receives a tank (5) flat bottom to receive the waste and the suction means of the waste taken from the ground.
  • the suction means are composed, as shown in figure 2 , a turbine (7) and a duct (8) cooperating with the turbine.
  • a first end (8 ') of the duct (8) opens in front of the axis of the front axle of the vehicle, and is extended by a nozzle (10) having a fixed part and a removable part each provided with means rapid hooking, which will be described in detail later.
  • the nozzle (10) is provided to ensure the collection of waste brought by the brushes (3a, 3b) towards the central axis of the vehicle.
  • Guide rollers (9) are provided behind the nozzle (10) to ensure the stability of the end portion (8 ') and to avoid the damaging consequences of possible clashes or friction of the mouth of the nozzle On the ground.
  • a second end (8 ") of the duct (8) is connected without the use of connecting elements to the lower part of the tank (5) by its mouth, which is positioned directly against an orifice (11) formed in the lower part of the tank (5), and whose diameter is less than or equal to that of the conduit (8).
  • the duct (8) is necessarily positioned against the outer wall of the tank (5), in correspondence with the orifice (11), so that it is not necessary to provide other connection or jointing means .
  • the figure 3 shows the vehicle stationary, the waste collection tank has been raised to allow emptying.
  • the tank (5) is in a quasi-vertical position and that the relief operation could be carried out without the suction duct (8) connecting the nozzle (10) to the tank (5) having been in any way affected or displaced or distorted.
  • FIGS. 4 and 5 more particularly illustrate the nozzle (10) mounted on the first end (8 ') of the conduit (8).
  • the nozzle (10) has two parts connected to each other.
  • a first fixed part (10 ') is placed at the end of the suction duct (8).
  • a second removable portion (10 ") is provided for cooperating with the fixed part (10 ') by means of quick coupling / quick release means of male / female type associated with locking means, and receives the accessories allowing to modulating the configuration of the end (8 ') of the conduit (8) as needed.
  • the fixed part (10 ') of the nozzle (10) is composed of a U-shaped support (15) which is mounted at the end of the duct (8).
  • the lateral edges of the support (15) are extended on the opposite side to that receiving the end of the duct (8) by two arms (16) projecting to secure the fixed part (10 ') of the nozzle to the chassis of the vehicle.
  • a cylinder (17) fed by hoses (18) is associated with the central part of the support (15) to perform the upward or downward movements of the nozzle (10) depending on whether the vehicle is in operation or at rest.
  • Fast means of hooking / unhooking of male type are provided in the rear part of the lateral branches of the U-shaped support (15).
  • the male-type quick coupling / unhooking means consist of tenons (20 ').
  • the removable portion (10 ") of the nozzle (10) is composed of a plate (21) having a central opening (22) intended to come into correspondence with the mouth of the duct (8) when the fixed parts (10) ') and removable (10 ") of the nozzle are connected to one another.
  • the opening (22) has a diameter substantially equal to but not greater than the inner diameter of the conduit (8).
  • the opening (22) serves to allow the passage of waste collected through the nozzle and to the conduit (8).
  • the plate (21) comprises two hook-shaped side pieces (20 ") arranged in correspondence with each other, the lateral hooks (20") constituting the female-type quick coupling / unhitching means intended to cooperate with each other. with the rapid coupling means / male stall provided on the fixed part (10 ') of the nozzle.
  • the plate (21) receives in the extension of the opening (22) a lever (23) which constitutes the locking means associated with fast hooking / unhooking means.
  • the lever (23) controls the locking of the male rapid catching / unhooking means (20 ') and female (20 ").
  • the hooking, respectively the stall, are carried out by engaging, respectively releasing, the lateral hooks (20 ") of the removable part (10") on the projecting tenons (20 ') of the fixed part (10'), then lowering, respectively up, the lever (23).
  • the plate (21) is slid towards the support (15) whose lateral edges act as guides for engaging the hooks (20 ") on the tenons (20 ') and thus secure the removable (10 ") and fixed (10 ') parts of the nozzle.
  • the lever (23) By lifting the lever (23), it causes a reverse movement of withdrawal of the plate (21) of the support (15) to disengage the hooks (20 ") of the tenons (20 ') and thus separate the removable parts (10") and fixed (10 ') of the nozzle.
  • the plate (21) of the removable portion (10 ") of the nozzle is arranged to receive various accessories that can modulate the suction modes.
  • the figure 4 illustrates a remote-type suction mode.
  • a flexible pipe (25) is mounted under the plate (21) of the removable part (10 ") of the nozzle (10) .Maintening and guiding rollers are provided to prevent shocks and friction.
  • This mode makes it possible to implement a remote suction, that is to say by sweeping an area located on either side of the axis of advance of the vehicle, or on the sides. carry out the collection of waste present on the pavement area situated on the sides of the vehicle, for example in a channel or a gutter, or in connection with the hose of an additional treatment collection system such as, for example, brushing, mowing, washing.
  • the figure 5 illustrates a direct type suction mode.
  • the plate (21) here receives a frame (26) supporting a filtering grid (26 ').
  • rollers are provided to maintain and guide the end portion of the nozzle.
  • This modality makes it possible to implement a direct suction on the ground. It is adapted to the collection of waste present in an area located under the chassis of the vehicle.
  • the suction duct (8) ends very far in front of the suction means, since its lower end connected to the nozzle (10) ends in front of the axis of the front axle of the vehicle, which is made possible by the use of a duct in one piece which is not integral with the vessel and which is therefore not likely to undergo deformation or stress.
  • another important advantage results from the fact that thanks to this positioning very forward of the nozzle and the suction duct, the operator present in the cabin will have a perfect visibility of the device.
  • This positioning also makes it possible to separate the bottom of the suction nozzle without the need for tools to choose to adopt a direct suction on the ground or a remote suction, and without intervention in the workshop.
  • the space between the end of the suction duct and the active zone of the debris removal means in front of the vehicle is reduced to a minimum.
  • the waste that is collected by the rotating brushes or other tools are initially brought back to the central part of the vehicle so as to be positioned in front of the inlet orifice of the suction nozzle to then be able to be conveyed to the tank through the suction duct.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuse-Collection Vehicles (AREA)
EP10183189A 2010-09-30 2010-09-30 Ansaugleitung, die mit einer Düse mit abnehmbaren Teil ausgestattet ist, für Straßenreinigungsfahrzeuge mit Gelenklenkung Withdrawn EP2436842A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10183189A EP2436842A1 (de) 2010-09-30 2010-09-30 Ansaugleitung, die mit einer Düse mit abnehmbaren Teil ausgestattet ist, für Straßenreinigungsfahrzeuge mit Gelenklenkung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10183189A EP2436842A1 (de) 2010-09-30 2010-09-30 Ansaugleitung, die mit einer Düse mit abnehmbaren Teil ausgestattet ist, für Straßenreinigungsfahrzeuge mit Gelenklenkung

Publications (1)

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EP2436842A1 true EP2436842A1 (de) 2012-04-04

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EP10183189A Withdrawn EP2436842A1 (de) 2010-09-30 2010-09-30 Ansaugleitung, die mit einer Düse mit abnehmbaren Teil ausgestattet ist, für Straßenreinigungsfahrzeuge mit Gelenklenkung

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018224153A1 (de) * 2017-06-08 2018-12-13 Alfred Kärcher SE & Co. KG Saugmaschine mit einer abnehmbaren saugmundvorrichtung, saugmundvorrichtung für eine saugmaschine, verfahren zum fixieren einer abnehmbaren saugmundvorrichtung an einer saugmaschine und verfahren zum lösen einer saugmundvorrichtung von einer saugmaschine

Citations (4)

* 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
DE8707111U1 (de) 1987-05-18 1987-07-16 Mulag Fahrzeugwerk Heinz Wössner GmbH u. Co KG, 7605 Bad Peterstal-Griesbach Fahrbares Saugreinigungsgerät für Straßenränder etc.
CA2450512A1 (en) 2003-11-06 2005-05-06 Madvac Inc. Mobile vacuum sweeper
FR2912433A1 (fr) * 2007-02-14 2008-08-15 Jungo Voirie Soc Par Actions S Conduit d'aspiration pour vehicule de voirie a direction articulee

Patent Citations (4)

* 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
DE8707111U1 (de) 1987-05-18 1987-07-16 Mulag Fahrzeugwerk Heinz Wössner GmbH u. Co KG, 7605 Bad Peterstal-Griesbach Fahrbares Saugreinigungsgerät für Straßenränder etc.
CA2450512A1 (en) 2003-11-06 2005-05-06 Madvac Inc. Mobile vacuum sweeper
FR2912433A1 (fr) * 2007-02-14 2008-08-15 Jungo Voirie Soc Par Actions S Conduit d'aspiration pour vehicule de voirie a direction articulee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018224153A1 (de) * 2017-06-08 2018-12-13 Alfred Kärcher SE & Co. KG Saugmaschine mit einer abnehmbaren saugmundvorrichtung, saugmundvorrichtung für eine saugmaschine, verfahren zum fixieren einer abnehmbaren saugmundvorrichtung an einer saugmaschine und verfahren zum lösen einer saugmundvorrichtung von einer saugmaschine

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