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EP0467269B1 - Véhicules de nettoyage - Google Patents

Véhicules de nettoyage Download PDF

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Publication number
EP0467269B1
EP0467269B1 EP91111779A EP91111779A EP0467269B1 EP 0467269 B1 EP0467269 B1 EP 0467269B1 EP 91111779 A EP91111779 A EP 91111779A EP 91111779 A EP91111779 A EP 91111779A EP 0467269 B1 EP0467269 B1 EP 0467269B1
Authority
EP
European Patent Office
Prior art keywords
brush
vehicle
mounting arm
linkage
vehicle according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91111779A
Other languages
German (de)
English (en)
Other versions
EP0467269A2 (fr
EP0467269A3 (en
Inventor
Kenneth Frederick Taylor
Ronald George Victor Goodall
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.)
Schmidt Winterdienst und Kommunaltechnik GmbH
Original Assignee
Schmidt Winterdienst und Kommunaltechnik 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 Schmidt Winterdienst und Kommunaltechnik GmbH filed Critical Schmidt Winterdienst und Kommunaltechnik GmbH
Publication of EP0467269A2 publication Critical patent/EP0467269A2/fr
Publication of EP0467269A3 publication Critical patent/EP0467269A3/en
Application granted granted Critical
Publication of EP0467269B1 publication Critical patent/EP0467269B1/fr
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
    • E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
    • E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
    • E01H1/053—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having vertical axes
    • 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

Definitions

  • This invention relates to a self-propelled cleaning vehicle of the kind used for street and pavement and precinct cleaning operations.
  • a self-propelled cleaning vehicle of the kind used for street and pavement and precinct cleaning operations.
  • Such a vehicle may comprise a pair of sweeping brushes in front of the vehicle rotating about upwardly extending axes, sweeping matter laterally inwardly towards the centre line of the vehicle, and may be provided with a suction nozzle to remove swept matter from the region between the brushes.
  • the brushes are mounted on arms extending forwardly from the front region of the vehicle, the arms, and thus the brushes, being position-adjustable by the operator.
  • auxiliary front brush With a known street sweeper (US-A-4754521) having two side-brushes behind the front wheels an auxiliary front brush is arranged which is movable on command in a crosswise direction to the front of the sweeper. As the auxiliary brush is carried by a quadrilateral linkage, the operator can also adjust the height of the auxiliary brush above the ground and its inclination with respect to the ground.
  • a gutter brush is movable by a ram between an upper inboard retracted position and a lower operating position by means of a linkage to support the brush vertically and a tie rod with variable length for different lateral positions.
  • a cleaning vehicle having at least one primary brush in front of the vehicle and additional brush means, and an associated mounting therefor, in which the additional brush means can be position-adjusted relative to the vehicle so as to meet one or more of the sweeping path requirements discussed above, or providing improvements generally in relation to matters discussed herein.
  • a control linkage interconnects the inner and outer arm portions of the brush mounting arm assembly for the additional brush, and actuator means for the linkage is provided to effect relative pivotal movement of the inner and outer arm portions.
  • the actuator means is connected to the linkage and located at the region of the inboard end of the brush mounting arm assembly for the additional brush.
  • the actuation of the brush mounting arm by means of a ram acting through said control linkage interconnecting the brush mounting arm portions and having a pivot connection which is rotatable about the axis of attachment of said linkage to the vehicle enables the resultant position-adjusting movement of the brush to be amplified with respect to the movement applied to the linkage by its actuator.
  • the control linkage comprises two pivotally connected links which are themselves connected to the inner and outer brush mounting arm portions so as to form a four bar linkage, which may be a parallelgram linkage.
  • the actuator may be connected to an extension portion of the inner one of the links of the linkage. This enables the actuating ram to be conveniently positioned with respect to the whole assembly and to make minimum space requirements.
  • a preferred embodiment includes another actuator, or actuators, to move the brush mounting arm assembly and the control linkage laterally with respect to the vehicle body, in a simple swinging movement.
  • a telescoping facility for the additional brush whereby said outer arm portion of said brush mounting arm assembly for said additional brush comprises a telescoping portion providing length-adjustment of said brush mounting arm assembly.
  • the reach of the additional brush is directly variable and the supply of oil to drive a hydrostatic brush motor mounted on a length-adjustable arm is provided without the problems of excessive amounts of slack hose in the retracted configuration of the arm.
  • the telescoping feature provides direct adjustment of the arm length as such so that, in a simple way, the reach of the arm is increased.
  • the telescoping arm portion is provided by a pair of telescoping rams which themselves provide the load taking structure of the telescoping arm portion. In this way, no additional sliding structures are needed. Moreover, the hydraulic supply to the hydraulic motor of the additional brush passes through either or both of these telescoping rams, whereby the hydraulic supply conduit for the motor itself effectively changes length, and the need for external length-adjustment-accommodating hoses is eliminated. In addition, by utilising the pressure of the hydraulic fluid supply to the motor, to load the pistons of the telescoping rams, it is arranged that telescoping of these can be effected without an additional pressure supply.
  • Another object of the present invention is to provide a cleaning vehicle incorporating means to maintain brush position relative to the vehicle during normal sweeping operations.
  • a contour-following means to enable said primary brush to follow automatically the peripheral contours of a surface it is sweeping without driver intervention.
  • the inboard one of the primary brushes will automatically follow varying contours in the gutter profile as a result of the loadings applied to the brush, namely a light outward loading by the hydraulic brush-positioning ram, and the opposite inward loading applied by the gutter profile.
  • valve means is actuable to interconnect the headside and rodside chambers of a double acting ram (or to interconnect the relevant chambers of two opposed single-acting rams) for positioning the primary brush, whereby the latter can move more readily inwards under the action of laterally-directed forces, while exerting a light outward loading due to the headside/rodside piston area difference tending to hold the brush against a kerb or other profile.
  • means are provided to define a standard position (with respect to the vehicle body or a suction nozzle) of a brush, said means comprising electrical sensing means connected to mounting means for said primary brush to detect when same is in said standard position.
  • control means are provided for returning the primary brush to the standard sweeping position if the brush position is not in conformity therewith.
  • a self-propelled cleaning vehicle 10 comprises a vehicle body 12, driven rear wheels 14, steerable front wheels 16 and matter removal means 18 comprising brush gear 20 and a suction nozzle 22.
  • Brush gear 20 comprises primary brushes 24, 26 and an additional or third brush 28.
  • Directions of rotation of the brushes are indicated by arrows R.
  • the letter F denotes the direction of normal forward movement of vehicle 10 and the letters VCL denote the vehicle centre line.
  • Primary brushes 24 and 26 are mounted on respective brush mounting arms 30, 32, which are pivotal about upwardly extending axes at their inboard ends - see Fig 9. The upwardly extending axes for such pivotal movement are shown at 34 and 36 .
  • the arm movement is controlled by rams 38, 40 connected at their inner ends 42, 44 to vehicle body 12.
  • Third brush 28 is carried on a brush mounting arm assembly 46 comprising inner and outer arm portions 48, 50 respectively. These are pivotally connected at 52, the pivot axis extending upwardly. Likewise, inner arm portion 48 is pivotally connected at 54 (upward pivot axis) to a bracket 56 project from vehicle body 12, on the vehicle centre line, at a fixed location, directly above nozle 22.
  • a control linkage 58 shown in Figs 5 to 8.
  • linkage 58 controls the relative attitude of arm portions 48, 50.
  • the entire brush mounting arm assembly 46 can be pivotally swung about axis 54 by means of a pair of swing rams 60, 62 seen in Fig 10 and indicated diagrammatically in Fig 1 at their location on bracket 56 at the inboard end of brush mounting arm assembly 46.
  • rams 60, 62 can swing the assembly laterally in the manner to be more fully described below.
  • Control linkage 58 is shown in Figs 5 to 8. It comprises a control rod 64 extending parallel to inner arm portion 48, and a control bracket 66 disposed generally parallel to outer arm portion 50. Pivot connections 68, 70 to outer arm portion 50, and to each other, respectively, give linkage 58 parallelogram form, or approximately such, whereby the assembly has parallelogram movement characteristics.
  • An actuator 72 in the form of a ram, for linkage 58 acts between bracket 56 and extension 74 of control bracket 66. Actuation of ram 72 enables linkage 58 to move through the configurations shown in Figs 5, 6 and 7.
  • rams 60, 62 and 72 for controlling the brush mounting arm assembly 46 are powered by hydraulic lines 76, 78 and 80 connected, respectively, to the pressure and return lines of the hydraulic supply system of vehicle 10, and to tank.
  • a control manifold 82 comprises a plurality of valves 84 for controlling the rams as described above. It is believed that the hydraulic circuit diagram is self-explanatory and that no further description thereof is needed for present purposes.
  • a manifold 86 connected to hydraulic supply lines 88, 90 controls a lift/float ram 92, not described above, for lifting brush mounting arm assembly 46 to a raised transport position, and for decreasing downward low thereon during use.
  • a corresponding manifold 94 with control valves 96 controls a pair of telescoping rams 98, 100, and a parking ram 102 for raising brush 28 to a parked position.
  • the hydraulic return from motor 104 is taken to hydraulic line 90 through a conduit 106 from the headside chamber 108 of ram 98.
  • the ram is drilled to connect chamber 108 with the hollow interior 110 of the its piston 112, from whence a line 114 connects to motor 104 through a valve 116.
  • the other side of the motor 104 is connected by a line 118 to the hollow interior 120 of the piston of ram 100, and hence to the rodside chamber of that ram.
  • a line 122 connects the other rodside chamber in parallel, with a line 124 connecting to the hydraulic pressure supply.
  • valves 96 enable the hydraulic pressure of the supply lines not only to drive motor 104, but to extend and retract the rams 98, 100 and 102.
  • position sensing means 124A is provided for primary brush 26 to detect angular movement of its brush mounting arm 32 from a preset normal working position.
  • the position sensing means 124A is in the form of an electrical switch connected between the arm 32 and the actuating piston of ram 38 and connected through a control 126 to an electrical control valve 128 connected across the lines 130, 132 supplying ram 38.
  • a similar arrangement is provided for brush 24.
  • Control 126 is also connected to and effective to control the valves which control rams 38, 40 when the brushes are in a non contour-following mode.
  • position sensing means 124A detect whether the brush mounting arms are in their standard working position and when the operator calls (by means of a contour/non-contour switch 133) for a non contour-following sweeping mode, the switches 124A signal to the control system for the rams 38, 40 to position same in their standard working positions as shown in full lines in Fig 9. It will be understood that the brushes may have been manually moved by the operator to any possible position for particular reasons prior to adoption of the non-contour following mode.
  • inboard brush 26 When the operator wishes the inboard brush 26 to adopt a contour-following mode, such as to follow a kerb profile while the third brush is under manual control, he operates switch 133 to select the brush gear's contour-following mode.
  • Outboard brush 24 remains unaffected.
  • Inboard brush 26 has valve 128 opened thereby interconnecting the headside and rodside chambers of ram 38. The net difference in area of the piston in these two chambers causes a light outward thrust to be exerted on the brush mounting arm, but which can be easily overcome by slight inward thrust on brush 26 from changes in kerb profile. The brush thus follows the kerb profile.
  • a manifold 134 comprises valves 136 and controls the operation of rams 38 and 40 from a hydraulic supply 138, with connections to tank at 140 and 142.
  • Fig 4 shows the various third brush positions possible, by means of the brush movement profiles 144, 146, 148 and 150. These represent the swinging movement of the brush under the action of the main swing rams 60, 62, in four different attitudes of the control linkage 58. It can be seen that the arrangement provides the combination of ability to reach right round and outside the brush 24 for pavement operations or extra sweeping width, while having effective control in the straightahead position for entry into corners and weed removal operations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Cleaning In General (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (12)

  1. Véhicule de nettoyage automoteur (10) comprenant:
    a) une caisse de véhicule (12);
    b) des roues au sol (14, 16) pour mener, supporter et conduire ladite caisse (12);
    c) des moyens pour enlever des matières pouvant être placés en position de travail par rapport à une surface à nettoyer pour en enlever des matières;
    d) lesdits moyens pour enlever des matières comprenant au moins une brosse primaire (24, 26) rotative autour d'un axe s'étendant vers le haut et portée sur un système de bras de montage de brosse s'étendant généralement vers l'avant par rapport à la direction normale (F) de mouvement avant de travail dudit véhicule (10) pour balayer des matières latéralement par rapport à cette direction;
    e) lesdits moyens pour enlever des matières comprenant en outre une brosse supplémentaire (28) également rotative autour d'un axe s'étendant vers le haut et portée sur un système de bras de montage de brosse (46) à cet effet, ce dernier s'étendant généralement vers l'avant par rapport à ladite direction normale (F) de mouvement avant de travail dudit véhicule (10), de façon à permettre de brosser à des endroits situésll4 en avant et/ou latéralement au delà de la position de travail normale de ladite brosse primaire (24, 28);
    f) ledit système de bras de montage de brosse (46) pour ladite brosse supplémentaire (28) comprenant des portions interne et externe (48, 50) de bras de montage reliées entre elles sur pivot; et
    g) des moyens pour ajuster la position de ladite brosse supplémentaire (28) par mouvement angulaire du bras de montage de la brosse par rapport à ladite caisse de véhicule (12);
    caractérisé en ce que
    h) lesdits moyens pour ajuster la position de ladite brosse supplémentaire (28) comprennent une jonction de contrôle (58) ayant deux joints (64, 66) connectés sur pivot et connectés sur pivot respectivement avec lesdites portions interne et externe (48, 50) de bras de montage pour former avec celles-ci une jonction à quatre barres (58), la connection à pivots (70) desdites jonctions connectées sur pivot (64, 66) étant libre de tourner autour d'un axe (54) s'étendant vers le haut par rapport au point d'attache pivotant du système (46) au support (56) du véhicule, et des moyens d'action pour permettre à ladite jonction d'effectuer un mouvement pivotant relatif desdites portions de bras interne et externe (48, 50), lesdits moyens d'action (72) étant connectés à ladite jonction (58) et placés à l'endroit de l'extrémité interne du système de bras de montage de brosse (46) pour ladite brosse supplémentaire (28).
  2. Véhicule selon la revendication 1, caractérisé en ce que la jonction à quatre barres est en forme de parallélogramme.
  3. Véhicule selon la revendication 1, caractérisé en ce que les moyens d'action sont connectés à une extension (74) du joint interne de ladite jonction.
  4. Véhicule selon la revendication 1, caractérisé en ce que lesdits moyens pour ajuster la position de ladite brosse supplémentaire (28) comprend de plus un autre actionneur pour bouger ledit système de bras de montage de brosse (46) et ladite jonction latéralement par rapport à ladite caisse de véhicule (12), en plus des moyens d'action pour ladite jonction de contrôle (58).
  5. Véhicule selon la revendication 1, caractérisé en ce que la portion de bras externe (50) du système de bras de montage de brosse (46) pour ladite brosse supplémentaire (28) comprend une portion télescopique permettant un ajustement en longueur dudit système de bras de montage de brosse (46).
  6. Véhicule selon la revendication 1, caractérisé en ce que la portion télescopique est composée d'une paire de vérins hydrauliques téléscopiques (98, 100).
  7. Véhicule selon la revendication 6, caractérisé en ce que des moyens d'entrainement pour la brosse supplémentaire (28) comprennent un moteur hydraulique (104) et qu'une conduite d'alimentation hydraulique (114, 118) pour ledit moteur (104) comprend lesdits vérins hydrauliques (98, 100) ou l'un d'entr'eux comme parties de la conduite (114, 118).
  8. Véhicule selon la revendication 7, caractérisé en ce que la conduite (114, 118) comprend une chambre côté tête ou côté tige dudit vérin (98, 100) et qu'au moins une partie de la tige de piston de celui-ci fournit aussi une partie de ladite conduite (114, 118).
  9. Véhicule selon la revendication 8, caractérisé en ce que la pression de fluide fournie par le moteur est utilisée pour actionner lesdits vérins (114, 118) pour télescoper ladite portion télescopique du système de bras de montage de brosse (46).
  10. Véhicule selon la revendication 1, caractérisé en ce que des moyens pour suivre des contours sont prévus pour permettre à ladite brosse primaire (24, 26) de suivre automatiquement les contours d'une surface à balayer sans l'intervention du conducteur.
  11. Véhicule selon la revendication 10, caractérisé en ce que deux brosses primaires (24, 26) sont prévues à une distance latérale l'une de l'autre et que les moyens pour suivre des contours opèrent du côté de la brosse près du bord de la route (par rapport à la position conventionelle du véhicule à droite ou à gauche de la route), alors que l'autre brosse est en position classique par rapport à la caisse de véhicule (12).
  12. Véhicule selon la revendication 10, caractérisé en ce que les moyens pour suivre des contours comprennent des moyens de soupape (128) actionnables pour relier les chambres côté tête et côté tige du vérin à double action (38, 40) (ou pour relier les chambres de vérins correspondantes des deux vérins opposés agissant séparément) pour positionner la brosse primaire, les moyens pour suivre des contours pouvant plus facilement se déplacer vers l'intérieur sous l'action de forces externes latérales, tout en exerçant sur la brosse une pression modérée vers l'extérieur, ayant tendance à la maintenir contre un rebord ou autre paroi.
EP91111779A 1990-07-14 1991-07-15 Véhicules de nettoyage Expired - Lifetime EP0467269B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909015529A GB9015529D0 (en) 1990-07-14 1990-07-14 Cleaning vehicles
GB9015529 1990-07-14

Publications (3)

Publication Number Publication Date
EP0467269A2 EP0467269A2 (fr) 1992-01-22
EP0467269A3 EP0467269A3 (en) 1992-05-13
EP0467269B1 true EP0467269B1 (fr) 1996-05-15

Family

ID=10679111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111779A Expired - Lifetime EP0467269B1 (fr) 1990-07-14 1991-07-15 Véhicules de nettoyage

Country Status (4)

Country Link
EP (1) EP0467269B1 (fr)
AT (1) ATE138140T1 (fr)
DE (1) DE69119491T2 (fr)
GB (1) GB9015529D0 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE151483T1 (de) * 1993-09-03 1997-04-15 Boschung Marcel Ag Kehrbesenanordnung für ein fahrbares wischgerät sowie wischgerät mit derselben
ES2088730B1 (es) * 1993-11-23 1998-07-01 Piquer Hermanos Sa Maquina barredora.
DE29608093U1 (de) * 1996-05-06 1996-08-14 Sobernheimer Maschinenbau GmbH, 55566 Sobernheim Tellerbesen an Kehrvorrichtung
KR101718125B1 (ko) * 2016-09-05 2017-03-21 신정개발특장차 주식회사 보행자 도로를 청소할 수 있는 노면 청소차용 청소장치
DE102018008269A1 (de) * 2018-04-13 2019-10-17 Hako Gmbh Straßenkehrmaschine
CN109468982B (zh) * 2018-12-05 2020-08-14 嘉兴诺丁汉工业设计有限公司 一种垃圾回收捡拾装置
CN109723016B (zh) * 2019-01-17 2020-09-08 林小芬 一种园林管理树叶自动清理机
NL2026070B1 (en) * 2020-07-15 2022-04-13 Ravo B V Cleaning machine for a road or pavement or gutter comprising a disinfectant system
NL2030143B1 (en) * 2021-12-15 2023-06-27 Ravo B V Cleaning machine with improved curb follow system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790981A (en) * 1972-09-15 1974-02-12 B Young Surface sweeping machine equipped with gutter brush
US4084285A (en) * 1977-04-18 1978-04-18 Central Engineering Co., Inc. Street sweeper with multi-position gutter brush
DE2924502C2 (de) * 1979-06-18 1985-08-08 KIBO Kommunalmaschinen GmbH & Co KG, 8011 Hohenbrunn Straßenkehrmaschine
GB2116613B (en) * 1982-02-27 1985-07-24 Schmidt Mfg & Equip Road sweeping machine
IT1195887B (it) * 1986-07-31 1988-10-27 Dulevo Spa Macchina spazzatrice stradale per la raccolta di rifiuti
GB8713251D0 (en) * 1987-06-05 1987-07-08 Duncan Vehicles Ltd Cleaning vehicles
FR2641293B1 (fr) * 1988-12-29 1992-04-03 Protee Gie Appareil de nettoyage d'une surface horizontale

Also Published As

Publication number Publication date
EP0467269A2 (fr) 1992-01-22
DE69119491T2 (de) 1996-09-19
ATE138140T1 (de) 1996-06-15
GB9015529D0 (en) 1990-08-29
EP0467269A3 (en) 1992-05-13
DE69119491D1 (de) 1996-06-20

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