EP0333849B1 - An ein fahrzeug anbaubare waschvorrichtung zum reinigen von verschieden oberflächen mit einem rotierenden reinigungsarm zum aufspritzen von warmwasserstrahlen unter druck - Google Patents

An ein fahrzeug anbaubare waschvorrichtung zum reinigen von verschieden oberflächen mit einem rotierenden reinigungsarm zum aufspritzen von warmwasserstrahlen unter druck Download PDF

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Publication number
EP0333849B1
EP0333849B1 EP88909555A EP88909555A EP0333849B1 EP 0333849 B1 EP0333849 B1 EP 0333849B1 EP 88909555 A EP88909555 A EP 88909555A EP 88909555 A EP88909555 A EP 88909555A EP 0333849 B1 EP0333849 B1 EP 0333849B1
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EP
European Patent Office
Prior art keywords
arm
rotary
nozzle
nozzles
vehicle
Prior art date
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Expired - Lifetime
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EP88909555A
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English (en)
French (fr)
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EP0333849A1 (de
Inventor
Gérard MONTANIER
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EUROPE HYDRO
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EUROPE HYDRO
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Priority to AT88909555T priority Critical patent/ATE70869T1/de
Publication of EP0333849A1 publication Critical patent/EP0333849A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/001—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements incorporating means for heating or cooling, e.g. the material to be sprayed
    • 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
    • E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
    • 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
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/002—Arrangements for cleaning building facades

Definitions

  • the present invention relates to the washing of dirty surfaces such as floors, walls, ceilings using a device fitted to a motor vehicle.
  • Such devices used to date for cleaning floors have a fixed washing ramp with high flow rate and low cold water pressure.
  • the boom has a large number of nozzles to cover by movement of the vehicle a given working area.
  • Hot water cannot be used in these known devices because of the high water flow (6 to 20 m3 / h) required.
  • the vehicle comprising such a device has a chassis which supports a large tank to provide, due to the high water flow, a certain operating autonomy for the vehicle.
  • this tank could be filled with hot water before the vehicle leaves for a cleaning tour, but it would also be necessary to provide good insulation of this tank so that the water temperature does not drop too much over time, especially in winter.
  • a hot spring should be provided at a specific location, which would limit the range and use of this vehicle.
  • the known washing devices comprise a fixed ramp which only delivers jets of fixed directions under a low pressure of cold water and consequently these jets do not have a cleaning effect on the soiled surfaces of fatty substances such as oils or fats.
  • washing devices which deliver by means of rotary arms fitted with hot water nozzles under a pressure of at least about 3.5 bar.
  • This pressure can, in certain other devices produced on the same principle, reach 500 bars.
  • the document FR-A-2515536 provides for a hot water pressure varying from 0 to 500 bars, that the document "Seifen-öle-Fette-Waschse, vol 97, n ° 8, 15.04.71 recommends a pressure of hot water of 85 bars or that DE-A-2515892 provides for the delivery of the fluid under a pressure of about 200 bars.
  • washing devices comprising as spreading means rotary arms provided with nozzles of different shapes and with different mounting methods are described in the technical literature. This is for example the case of documents DE-A-2257607, FR-A-2515536 and DE-A-2515892 already cited, of document EP-A-0196978, of FR-A-2584747, of US-A- 1388510 or GB-A-2024611.
  • the present invention proposes to provide, by a particular combination and by a particular embodiment of means which are also known separately, a washing device fitted to a motor vehicle making it possible not only to obtain a jet of hot water under pressure capable, by its temperature, to soften or even melt the fatty substances on the surfaces to be cleaned, but also a jet having a great cleaning power on all the affected surfaces (front, rear, lateral of a surface having reliefs) with a strong kinetic energy. Furthermore, this device makes it possible, thanks to this high power of jets, to reduce the flow rate of hot water delivered.
  • the invention relates to a washing device fitted to a motor vehicle, this device having a strong cleaning effect on surfaces including those soiled with fatty substances.
  • This washing device is of the type comprising at least one cold water tank and water heating means which supply by means of pumping means and pipes at least one rotary cleaning arm provided with '' at least one nozzle, each nozzle being able to directing a jet of pressurized hot water towards a surface to be cleaned, and it is first of all characterized in that the heating means comprises at least one high pressure boiler adapted to deliver superheated water under a pressure of 100 to 250 bars.
  • the pressure is provided by the pumping means which advantageously include a high pressure positive displacement pump for this purpose.
  • the high power of the jet makes it possible to reduce its cross section therefore the flow rate of each nozzle equipping the rotary arm. This results in a particularly low consumption of hot water and a long autonomy of the cleaning vehicle.
  • the device in question also has the rotary arm being disposed substantially horizontal and having a substantially vertical axis of rotation, said arm being located under the vehicle with a nozzle at each of its ends, these nozzles being themselves characterized by the fact that they are substantially identical with a basic triangular flat shape extending towards the floor to be cleaned at an opening angle ⁇ of between approximately 15 and 40 °, the general mean plane of each nozzle being inclined at an angle ⁇ relative to the axis of rotation of said rotary arm carrying said nozzle, this angle ⁇ being an acute angle between 0 ° and 30 °.
  • two nozzles of the same rotary arm have the same angle of inclination ⁇ so that the angle of attack of the jets of these nozzles on the surface to be cleaned are different.
  • these jets can attack the opposite edges of a surface element comprising facets perpendicular to the general plane of this surface such that pavers or gratings.
  • This device also comprises means for adjusting the height of the rotary arm relative to the floor to be cleaned between a cleaning position and a waiting position.
  • the device is particularly suitable for cleaning roads, aircraft landing strips, and other oily soils.
  • the device is characterized in that it further comprises an articulated orientable and deployable member having a rotary cleaning arm disposed at its free end for cleaning walls, ceilings, floors and surfaces of various orientation.
  • each rotary arm provided with at least one of its nozzles is designed to deliver, during operation, a quantity of hot water under high kinetic energy pressure of between approximately 0.5 and 3 m3 / hour.
  • a high pressure rotary joint is then provided for the rotation of said rotary arm while ensuring its supply of hot water.
  • a washing device equips a three-wheeled vehicle whose motorization is known per se.
  • the chassis At the rear of the cockpit, the chassis, generally in the form of a horizontal plane, carries two cold water tanks 1, 2 which supply two vertical boilers 3, 4 using a high pressure pump 5 which creates a strong pressure in all the pipes.
  • the boilers 3, 4 in turn supply by pipes and a rotary joint, a rotary shaft 6 of a cleaning arm 7 substantially horizontal and axis of rotation 6A substantially vertical provided at its ends with two nozzles 8, 9 whose orifices are directed towards the ground.
  • the cleaning arm 7 is located under the vehicle between the wheels and its rotation is protected by a protective casing 10.
  • This protective casing 10 is provided with guide rollers 11 (only one of which is shown) and is connected by elements for fixing to the external part of the rotary joint which will be described below.
  • the dimensions of the casing situated between the wheels of the vehicle do not exceed the width of the vehicle.
  • its diameter will therefore be equal to or less than the width of the vehicle.
  • the reservoir 1 known as the front reservoir, because close to the cockpit, has the overall shape of a straight parallelepiped whose dimensions do not exceed the height of the cabin and the width of the vehicle.
  • This reservoir 1 provided with a filling orifice 1A in cold water, has a concave recess 11 on its rear face to leave the space necessary for a lifting cylinder 12 of the rotary shaft 6 carrying the rotary arm 7 and the casing 10.
  • the lifting cylinder constitutes means for adjusting the height of the rotary arm with respect to the ground to be cleaned between a cleaning position A and a standby position B.
  • the tank 2 is called rear tank because it is located near the edge rear of the vehicle has the same generally parallelepiped shape as the tank 1 and also has a filling orifice 2A.
  • This rear tank 2 mounted on a tilting subframe can be tilted around a hinge 13A to give access to the vehicle engine.
  • heating means are constituted by the two vertical boilers 3 and 4, with oil burners 14, 15.
  • the chassis of the vehicle also carries the high pressure positive displacement pump 5, two hydraulic motor / alternator assemblies 13 of which only one is shown, to meet the electrical needs of the two burners, and a low pressure positive displacement pump 19 for supplying cold water to a ramp of flush 20 located below the front face of the cockpit.
  • a first end 21 of this ramp 20 is connected to a flexible cold water supply pipe and is supported by a hinge forming a ball joint.
  • the second plugged end 22 is fixed to a height adjustment cylinder 23 and to a corner cylinder 24.
  • This ramp 20 is provided over its entire length with regularly spaced orifices 25 and whatever its position it does not exceed the vehicle width.
  • this ramp 20 In another embodiment (not shown) of this ramp 20, this instead of being at the front of the vehicle is located at the rear. This arrangement allows simultaneous washing by the rotary arm 7 and rinsing by the ramp 20 in a single pass of the vehicle. The drawback of this rear position lies in a poorer view of the ramp by the driver of the vehicle, who then uses a system of mirrors.
  • Figures 3 and 4 show a preferred embodiment of the rotary cleaning arm 7 which is formed of a tube 7A substantially straight and perpendicular in its middle to the axis 6A of the hollow rotary shaft 6.
  • This tube is connected to each of its two ends has a nozzle 8, 9.
  • the nozzles 8 and 9 are identical and have a generally flat triangular shape.
  • the nozzle 8 is constituted by a front face 26 having the shape of an isosceles triangle and a rear face 27, image of the front face with respect to a plane of symmetry parallel to the front face, and located in the vicinity of that -this.
  • the distance between the two faces 26 and 27 defines the width d of the orifice 28 of the nozzle.
  • the opposite faces and which have the same overall length are connected to form an outer side 29 and an inner side 30 rounded of the nozzle.
  • the nozzle is characterized by its opening angle ⁇ equal to the angle of the apex of the isosceles triangle, and by the angle of inclination ⁇ of its mean general plane relative to the axis of rotation 6A.
  • the two nozzles 8 and 9 have a general mean plane whose angle of inclination is approximately 10 °.
  • the opening angle is 40 °.
  • ⁇ can vary between 0 and 30 ° and ⁇ can be chosen between around 15 and 40 °.
  • a small aperture angle ⁇ will increase the power of the jet compared to a large aperture.
  • a large opening will contribute to attacking all the facets of the small reliefs of the surface to be cleaned during the progression of the vehicle. If the main use of such a washing device is known, the angle ⁇ will be small for very smooth and very dirty surfaces, but rather large for surfaces with many small reliefs.
  • the water jets under high pressure are in the form of two flat blades widening at the angle ⁇ and in the general mean plane.
  • the two water jets are symmetrical with respect to a plane Y passing through the axis of rotation 6A and perpendicular to the axis 7B of the tube 7A.
  • This latter symmetry determines a balance of reaction force exerted on the ends of the rotary arm 7 by the departure of the water at high speed from each nozzle 8, 9.
  • this element 32 will undergo the jet of the nozzle at an equal acute angle of attack at 90 ° - ⁇ then the jet from nozzle 9 at an obtuse angle of attack equal to 90 ° + ⁇ , the difference in inclination of the two successive jets being 2 ⁇ .
  • this element has opposite facets perpendicular A and B to the general plane Z and which, for the sake of clarity, each have their plane passing through the axis of rotation 6A, the successive jets can then attack each facet A and B.
  • the first jet from nozzle 8 will attack facet A at the angle of attack ⁇ without being able to attack facet B, but the second jet from nozzle 9 will attack facet B at the angle of attack ⁇ without having previously attacked facet A.
  • the two other opposite facets C and D perpendicular to the general plane Z and parallel to the direction of movement of the vehicle will be attacked by the jets by the combined action of the opening of each nozzle, the angle ⁇ and of the progression of the vehicle with the rotation of the rotary shaft 7.
  • the two nozzles of the same rotary arm have tilt angles ⁇ of the same magnitude but in opposite directions.
  • the two jets then have the same angle of attack, either obtuse or acute, of the surface to be cleaned and a torque is applied by reaction effect on the rotary arm which has no no motor required to be rotated.
  • the rotary arm comprises means for adjusting the angle of inclination ⁇ of each nozzle.
  • the angle ⁇ can be adjusted between 0 and 30 °.
  • Each nozzle then forms a single piece with a short segment of cylindrical tube which is connected to the end of the tube 7A of the rotary arm by means of any known connection means such as for example flange assembly flange with gasket.
  • FIG. 7 represents a high pressure rotary joint 32A which allows the rotation of the rotary arm while ensuring its supply of hot water.
  • This seal 32A essentially consists of two parts: a shaft 33 which can enter into rotation, by the action of a motor 70, inside a cylindrical ring 34.
  • the shaft 33 is provided with a radial bore 35 which communicates with an axial bore 36A intended to be connected to the rotary shaft 6 of the rotary arm 7.
  • the radial bore 35 of the shaft communicates whatever its angular position with a chamber 36 having the shape of a hollow ring in the cylindrical ring 34.
  • a radial bore passes through the cylindrical ring and opens into the chamber 36.
  • the seal is ensured by annular seals 38, 39 located between the shaft 33 and the cylindrical ring 34, on the side and other of the chamber 36 and axially spaced.
  • Two bearings 40, 41 guide the shaft in rotation.
  • the pressurized hot water arriving along arrow A fills the chamber 36, then the radial bore 35 of the shaft to come out of the rotary joint according to arrow D.
  • This rotary joint 32 allows the circulation of water to a maximum temperature of 140 ° C, under a maximum pressure of 350 bars and a maximum rotation speed of 500 revolutions / min.
  • FIG. 8 represents a diagram of operation and control for the first embodiment of the device according to the invention. This diagram does not show the electrical supply and control circuit whose electricity comes from a generator located in the engine block of the vehicle. Thus are essentially represented the hydraulic circuits of the device according to the invention.
  • These circuits include two pressurized water circulation circuits and two pressurized hydraulic oil circuits.
  • the first water circulation circuit draws water from the reservoirs (only 1 of which is represented) by means of a filter 42.
  • the reservoir 1 is provided with a low level detector 43 connected to the circuit electric, a cartridge filter 44 at the inlet 1A and a drain valve 45.
  • the withdrawn water is put under high pressure by a high pressure positive displacement pump 5.
  • This pump can ensure a flow of 3000 l / hour under a maximum pressure of 250 bars. It is driven by a hydraulic motor 47.
  • the pump 5 sends the water into the coil 48 of an oil-fired boiler 3.
  • the second boiler 4 has not been shown.
  • This boiler is equipped with an oil burner 14, a flow controller (not shown) and a thermostat for adjusting the temperature of the outlet water (not shown).
  • the thermostat is preferably set between 50 and 95 ° C.
  • a pressure limiter 49 which in operation can return the water to the tank 1.
  • the hot water from the coil can be distributed using two valves 50, 51, either to the reel 16 provided with a hose at the end of which is fixed the gun 17 provided with its lance 18, or to the arm rotary 7.
  • the nozzles 8 and 9 have an orifice 28 dimensioned so that the water is under a pressure of approximately 100 to 250 bars with a total flow of between approximately 0.5 and 3 m3 / h.
  • Another water circuit supplies the rinsing ramp.
  • Water is taken from tank 1 via a filter 52, then placed under low pressure using a low pressure centrifugal pump 53.
  • This pump can ensure a water flow of 4,500 l / h under a maximum pressure of 7 bars. It is driven by a hydraulic motor 54.
  • the pump 53 sends cold water into the pipeline 55 through a solenoid valve 56. Between the pump 53 and the solenoid valve 56 is a pressure relief valve 57 which in operation can return water in tank 1.
  • the first hydraulic oil pressure circuit which supplies the two hydraulic motors 47 and 54 described above comprises a motor 59 which drives a positive displacement pump 60.
  • This motor 59 can be replaced by a power take-off of the vehicle engine.
  • Bypass a pressure limiter 61A ensures the safety of the system.
  • the positive displacement pump 60 feeds the hydraulic motor 47 via a solenoid valve (4/2) 61. Between this pump 60 and this distributor 61 a bypass can conduct the hydraulic oil to the hydraulic motor 54 via '' a solenoid valve (4/2) 62.
  • a second hydraulic circuit controls the positioning of the rotary arm 7, the flushing ramp 20 and the operation of an alternator 13 serving to supply electric power to the burner 14.
  • An electric motor 64 actuates a hydraulic pump 65 which supplies all of the second pressurized oil circuit.
  • This engine 64 can be replaced by a PTO of the vehicle engine.
  • This hydraulic pump is fitted with a pressure limiter 66 and supplies, via a solenoid valve (4/2) 67 and two hoses 68, 69, a hydraulic motor 70 which drives, via the rotary joint 32A, the rotary arm 7.
  • this first embodiment of a washing device is the following.
  • the vehicle arrives at the washing places, casing and rotary arm raised in the standby position.
  • the conductor lowers the rotary arm and begins strip cleaning of the surface to be cleaned with hot water under high pressure.
  • the driver makes iron his vehicle on the surface by activating the rinsing ramp which is tilted either to the right or to the left to evacuate the dirt either to the right or to left of the vehicle.
  • This first embodiment of the invention makes it possible to effectively clean the floors where the vehicle can run.
  • a rotary arm 107 disposed at a so-called free end of a swiveling and deployable articulated arm 200.
  • the other end of this arm is fixed to a pivoting bracket 201, the base of which is integral with the chassis of the motor vehicle which is under the shape of a heavy goods vehicle with four wheels with at its front over its entire width, an adjustable flushing ramp 120 similar to that described in the first embodiment of the invention.
  • the bracket 201 comprises a substantially vertical pole 202 in the form of a cylinder of revolution capable of pivoting in both directions by an angle in total of approximately 90 ° around its axis of revolution.
  • a first segment 204 forming a console to constitute the pivoting bracket with the post.
  • This first segment 204 is rectilinear, hollow and forms an obtuse angle with the axis of revolution of the post 202 which is preferably located equidistant from the lateral edges of the vehicle.
  • the arm segment 204 passes over the roof of the cockpit comprising a light beacon and its forward-facing end 205 slightly exceeds the front edge of the cockpit in overlooking it.
  • This end 205 is articulated around an axis 206 substantially horizontal to a second hollow segment 207 of the articulated arm by virtue of two coaxial rotary actuators 208, 209, mounted head to tail, the controlled rotation of which is identical and synchronized and approximately in total 225 °.
  • Two cylinders are provided to create together sufficient torque capable of supporting and moving the rest of the arm ending in the washing head assembly.
  • These cylinders 208, 209 may for example be cylinders Type SM 2.200 FLO-TORK from the company Doedijns.
  • the second hollow segment 207 is articulated to a third hollow segment 210 using a rotary actuator 211 so that the two hollow segments 207, 210 are substantially coaxial with the axis of rotation of the rotary actuator 211 which can rotate by an angle of 360 °.
  • This jack 211 has a hollow shaft secured to the third segment 210 while its frame is secured to the second segment 207.
  • This jack can for example be a Flo-Tork hydraulic rotary jack with hollow shaft model 75000, 150000, 300000 or 600000, the diameter inside of the hollow shaft then being between approximately 7 cm and approximately 9.5 cm.
  • the length ratios of segments 207 and 210 can be any, but preferably the length of segment 207 is longer than that of segment 210.
  • the cylinder 211 has a hollow shaft because this allows the passage of the hydraulic fluid and water supply conduits as well as the passage of electrical cables for controlling the position of the housing 110 as will be described below.
  • the third segment 210 is articulated to a washing head assembly 212 by means of a rotary actuator 213 whose axis of rotation 214 is orthogonal to the axis of rotation 211A of the preceding rotary actuator 211.
  • the rotary actuator 213 can for example be an ECKART actuator (Doedijns company) of the ND series with a size ranging from 63 to 200 (piston size in mm).
  • the rotary actuator 213 is able to rotate 360 ° but the size of the washing head assembly means that in reality the possible pivoting angle of the washing head 212 relative to the third segment 210 is a little less than 360 ° or about 300 °.
  • These two possible successive rotations of the articulated cylinders 211, 213 make it possible to give the housing 110 and the washing arm almost all possible orientations in space with only a very small dead angle which can be compensated by an angulation at the level of the axis 206 between the first segment 204 and the second segment 207 using the cylinders 208, 209.
  • the washing head assembly 212 comprises, in a protective casing 215, a hydraulic motor 170 driving the cleaning arm 107 provided with nozzles 108, 109 by a rotating joint 132. This cleaning arm rotates in a protective casing 110.
  • This casing 110 having the shape of a cylinder of revolution of low height, is open at one of its ends to allow the jets coming from the nozzles 108 and 109 to pass.
  • the opposite end of the casing 110 is provided with large orifices 206, so that the latter does not transform into a receptacle for water and dirt when the ceilings are cleaned in particular.
  • the casing 110 made integral with the protective casing 215 by means of sheet metal buttresses 216, has on its periphery several detector elements 217 comprising microswitches electrically connected to an electronic system for controlling the movements of the articulated arm 200. In the event contact of a sensor element with the surface to be cleaned any movement of the articulated arm is stopped by stopping the supply of cylinders with fluid. Similarly, if the vehicle is in motion, its progress is immediately braked.
  • the rotary cylinders 208, 209, 211, 213 are connected to hydraulic pumps not shown using hoses located outside of the articulated arm 200.
  • connection hoses (220, 221) of the hydraulic motor 170 to a positive displacement pump not shown and a hose 222 for supplying hot water under pressure to the rotary cleaning arm 107.
  • hoses 220, 221, 222 pass inside the first segment 204 and then come out to span the axis of the rotary jacks 208, 209 to pass back inside the second segment 207, then from the hollow shaft of the rotary jack. 211 to join the interior of the third segment 210 and from there after having stepped over the rotary actuator 213 connect respectively to the hydraulic motor 170 and to the rotary joint 132.
  • the electric cables (not shown), connected to the detector elements 217 follow the same path as the hoses 220, 221, 222 inside the articulated arm.
  • the protective casing 110 rests in the vicinity of the rear roof of the vehicle by folding back the articulated arm 200, by pivoting around the jacks upside down 208, 209.
  • This provides the lowest overall height of the vehicle thus equipped.
  • the deployed length of the articulated arm measured from the end 203 of the post 202 and going to the edge of the casing which is in operation facing the surface to be cleaned, is close to the overall length of the vehicle.
  • the vehicle with its washing arm in the rest position, arrives near the places of cleaning.
  • the articulated arm In an open space in height the articulated arm is unfolded so that it projects at the front of the cockpit.
  • the protective casing is brought gently to the vicinity of the surface to be cleaned in as parallel a manner as possible. shown in Figures 9, 10 and 11, by controlling the different cylinders of the articulated arm 200 and the bracket 201.
  • the approach to the surface to be cleaned is controlled by the detector elements 217, which play the role of safety of the visual guidance by the driver of the vehicle.
  • the driver With the vehicle stationary, the driver can clean circular areas of floors, walls, ceilings by controlled movements of the articulated member.
  • the movement of the vehicle allows washing in strips extending in the direction of progression of the vehicle in slow forward (approximately 1.5 km / hour).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (6)

1. Waschvorrichtung hoher Reinigungswirkung zur entsprechenden Ausrüstung eines Kraftfahrzeugs, mit zumindest einem Kaltwasser-Behälter (1, 2) und Mitteln zum Aufheizen von Wasser, die mittels einer Pumpeinrichtung und einem Kanalsystem zumindest einen rotierenden Reinigungsarm (7, 107) mit zumindest einer Düse (8, 9, 108, 109) versorgen, wobei jede Düse in der Lage ist, einen Warmwasserstrahl unter Druck gegen eine zu reinigende Fläche zu richten und der unter dem Fahrzeug angeordnete rotierende Arm (7) im wesentlichen horizontal ist, eine im wesentlichen vertikale, durch seine Mitte verlaufende Drehachse (6A) aufweist und an jedem seiner beiden Enden jeweils mit einer Düse (8, 9) versehen ist, dadurch gekennzeichnet, daß die Heizmittel zumindest einen Hochdruckkessel (3, 4) umfassen, der überhitztes Wasser bei hoher Temperatur unter einem Druck von 100 bis 250 Bar in jede Düse (8, 9, 108, 109) abgibt und daß die Düsen (8, 9) im wesentlichen gleich sind und eine dreieckige flache Form mit einer Basis aufweisen, die sich zum zu reinigenden Boden hin gemäß einem Öffnungswinkel β zwischen etwa 15 und 40° ausdehnt, wobei die allgemeine mittlere Ebene jeder Düse gemäß einem Winkel γ bezüglich der Drehachse (6A) des diese Düse tragenden rotierenden Armes (7) geneigt ist und dieser Winkel γ ein spitzer Winkel zwischen 0 und 30° ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Düsen (8, 9) eines jeweiligen rotierenden Armes (7) denselben Neigungswinkel γ aufweisen, so daß der Angriffswinkel der Strahlen der Düsen (8, 9) auf der zu reinigenden Fläche unterschiedlich ist.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sie Mittel (12, 72) zur Regelung der Höhe des rotierenden Armes bezüglich des zu reinigenden Bodens umfaßt, so daß die Reinigungskraft verändert wird.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, u.a. mit einem beweglichen, einstellbaren und ausfahrbaren Arm (200) zum Reinigen von Wänden, Decken, Böden und Flächen verschiedener Orientierung, dadurch gekennzeichnet, daß ein rotierender Reinigungsarm (107) am freien Ende dieses beweglichen, einstellbaren und ausfahrbaren sowie mit Düsen (108, 109) gemäß diesen Ansprüchen ausgerüsteten Armes vorgesehen ist.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jeder rotierende Arm (7, 107), der zumindest mit einer dieser Düsen (8, 9, 108, 109) ausgerüstet ist, im Betrieb eine Warmwassermenge unter Druck bei höherer kinetischer Energie zwischen etwa 0,5 und 3 m³/Stunde abgibt.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie eine Hochdruck-Drehverbindung (32A) zur Drehung des rotierenden Armes (7, 107) umfaßt, die dessen Versorgung mit Warmwasser sicherstellt und im wesentlichen eine Welle (33) umfaßt, die mittels eines Motors (70) im Inneren eines Ringzylinders (34) antreibbar ist, wobei die Welle mit einer Radialbohrung (35) versehen ist, die mit einer Axialbohrung (36A) kommuniziert, die mit der rotierenden Welle (6) des rotierenden Armes (7) verbindbar ist, wobei die Radialbohrung (35) mit einer Kammer (36) kommuniziert, die die Form einer Ringausnehmung in dem Ringzylinder (34) aufweist, der selbst von einer Radialbohrung durchsetzt ist, die in die Kammer (36) mündet, welche im Betrieb durch warmes Wasser unter Druck auffüllbar ist.
EP88909555A 1987-10-09 1988-10-10 An ein fahrzeug anbaubare waschvorrichtung zum reinigen von verschieden oberflächen mit einem rotierenden reinigungsarm zum aufspritzen von warmwasserstrahlen unter druck Expired - Lifetime EP0333849B1 (de)

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FR8713956A FR2621626B1 (fr) 1987-10-09 1987-10-09 Dispositif de lavage equipant un vehicule automobile, et comportant un bras rotatif de lavage qui delivre des jets d'eau chaude sous pression pour nettoyer des surfaces diverses
FR8713956 1987-10-09

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CA1311224C (fr) 1992-12-08
ATE70869T1 (de) 1992-01-15
DE3867230D1 (de) 1992-02-06
FR2621626A1 (fr) 1989-04-14
EP0333849A1 (de) 1989-09-27
FR2621626B1 (fr) 1992-02-07
WO1989003456A1 (fr) 1989-04-20
US5004156A (en) 1991-04-02

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