EP0843046B1 - Apparatus for sweeping and collecting material - Google Patents

Apparatus for sweeping and collecting material Download PDF

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Publication number
EP0843046B1
EP0843046B1 EP97402687A EP97402687A EP0843046B1 EP 0843046 B1 EP0843046 B1 EP 0843046B1 EP 97402687 A EP97402687 A EP 97402687A EP 97402687 A EP97402687 A EP 97402687A EP 0843046 B1 EP0843046 B1 EP 0843046B1
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EP
European Patent Office
Prior art keywords
brush
chassis
rotary brush
tray
carrying chassis
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
EP97402687A
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German (de)
French (fr)
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EP0843046A1 (en
Inventor
Claude Rabaud
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Rabaud SAS
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Rabaud SAS
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Publication date
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Publication of EP0843046A1 publication Critical patent/EP0843046A1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
    • E01H1/04—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading
    • E01H1/045—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading the loading means being a rotating brush with horizontal axis
    • 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
    • E01H1/04—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading
    • E01H1/047—Collecting apparatus characterised by the hopper or by means for unloading the hopper

Definitions

  • the present invention relates to a soil sweeping machine which also allows the collection of sweepings in a storage bin designed for this purpose.
  • sweepers there are different types of sweepers including a rotary brush with a horizontal axis associated with a bin or a container which forms a collector for the swept material.
  • the brush / collector assembly is generally mounted on a chassis provided with wheels and means for coupling to a tractor vehicle; you can also find self-propelled assemblies.
  • a sweeper of this kind is for example described in the document FR-A-2 506 360.
  • This machine comprises a rotary brush which cooperates with a deflector plate making it possible to propel the swept materials upwards and backwards, towards the waste container.
  • the rotary brush is carried by a movable head on which the lower part of the deflector plate is fixed and which has the possibility of pivoting between an adjustable working position in which the brush is in contact with the surface to be swept, and a rest position. wherein said brush is spaced from the work surface.
  • This machine has a good capacity for picking up and storing swept materials, but its structure does not make it possible to obtain a constant quality of sweeping over time, in particular as the bristles of the rotary brush wear and tear. .
  • the present invention proposes to improve this kind of sweeper, in particular to allow obtaining a substantially constant quality sweep despite the gradual wear of the bristles of the brush which causes a reduction in its working diameter.
  • the sweeping and sweeping machine is of the type consisting of a chassis mounted on wheels and provided with means of coupling to a vehicle which tows or pushes it, such as an agricultural tractor, a forklift, a loader, a backhoe, a backhoe ... etc.
  • This chassis carries a cylindrical rotary brush of horizontal axis which extends perpendicular to the direction of advance; the rotary brush cooperates with a deflector system to propel the swept material over it and towards the rear, in the direction of a storage tank which is pivotally mounted on said carrying frame, and it comprises means which allow adjustment from its position relative to the ground, in particular to allow this positioning to change as a function of the wear of the brush bristles.
  • this sweeper also comprises means for adjusting the position of the deflector system which make it possible to change its curvature as a function of the positioning of the rotary brush and more particularly as a function of the evolution of the contour of the bristles of this brush.
  • the deflector system consists of a sheet flexible which is fixed at one of its ends to the supporting frame, which sheet is subjected to the action of one or more pushers adjustable which are integral with said chassis and which make it possible to modify its curvature around the bristles of the brush.
  • the means for adjusting the position of the rotary brush by relative to the ground are advantageously constituted by an intermediate frame which carries said brush and which is pivotally mounted on the chassis carrier around a horizontal axis.
  • the position of this intermediate frame by relation to the supporting frame is fixed by adjustable connecting means shaped like an arm.
  • This arm is articulated on the intermediate frame; he has the possibility of sliding in an orifice fitted in the supporting frame and it is itself provided with a plurality of orifices adapted to position a axis abutting against said chassis, under the effect of the weight of said frame intermediate and said brush.
  • the sweeper comprises coupling means which allow it to be lifted by the tractor or pusher vehicle, in particular to ensure the operation of emptying the storage bin, by a pivoting operation of the latter.
  • This sweeper always works in the same direction of travel; it can be pushed or pulled, depending on the type of vehicle used and the system for connecting to the vehicle coupling means is adapted accordingly, arranged either at the front or at the rear of the machine.
  • the supporting frame is preferably in the form of a box which covers and surrounds the rotating brush and the storage tank; he is provided support wheels on the ground in front of and behind the rotating brush.
  • the storage tank is subjected to the action of two lateral hydraulic cylinders for the operation around its pivot axis.
  • These two hydraulic cylinders are supplied in parallel by a double-acting hydraulic outlet, a valve non-return valve being placed on the brush motor's own circuit, in a feeding direction, to allow rotation of the brush while actuating the jacks to place the tank in the filling position and, in the other feeding direction, to allow movement of said cylinders to ensure the emptying of this tank, the non-return valve then preventing the oil to drive the hydraulic motor of the brush.
  • the storage bin consists of - a part mobile which is pivotally mounted on the supporting frame, and - of a part fixed, integral with said chassis, which forms its front wall when it is placed in the sweep recovery position.
  • This feature allows limit the degree of tilting required for emptying.
  • the sweeper has a sheet metal element, integral of its chassis, on which the rear wall of the tank comes to bear storage when it is placed in the recovery position for swept materials.
  • a skirt made of flexible material extends the chassis to the ground, on the front of the rotating brush and on its ratings.
  • This skirt is associated with a bib in rigid material which is articulated between it and the rotating brush.
  • the device for connecting to the vehicle coupling system is mounted floating on the carrying frame.
  • this connecting device is secured to the carrying frame by means of axes which cooperate with oversized lights.
  • the connection device is provided with high and low fixing points; the bottom fixing point (s) is (are) constituted (s) of an axis cooperating with a vertical oblong lumen arranged on the supporting frame, to give this axis a possibility of free movement in height; the top fixing point (s) is (are) constituted (s) of an axis which cooperates with a square or rectangular light arranged on the supporting frame, to give a possibility of free movement to said axis , in height and tilting forward / backward.
  • the sweeper that is shown in Figures 1 and 2 consists of a rotary brush 1 carried by a frame 2 in the form of caisson.
  • the supporting frame 2 is provided with front 3 and rear 4 wheels support on the ground; on the front, it includes a connection device 5 to coupling system of a towing vehicle that has not been shown.
  • the front 3 and rear 4 wheels are placed on either side of the rotary brush 1. They are adjustable in height, idly mounted on their horizontal axis of rotation and they are secured to the carrying frame 2 by means of a vertical axis free in rotation.
  • the connecting device 5 allows the attachment to the three-point hitch system of an agricultural tractor.
  • This connecting device 5 consists of two lateral low points 6 and a central high point 7 which are intended to cooperate with fixing pins.
  • the high connection point 7 comprises a horizontal oblong lumen 8 which gives the possibility of front-to-rear travel allowing the hitch to absorb movements linked in particular to irregularities in the ground.
  • the connecting device 5 and the coupling system of the towing vehicle allow the machine to be lifted above the ground to obtain a fully supported assembly.
  • the rotary brush 1 is positioned horizontally and perpendicular to the direction of travel of the vehicle tractor.
  • This rotary brush 1 has been shown diagrammatically in the form of a cylinder; it is in fact made up of a horizontal hub 10 which defines its axis of rotation and on which discs are fitted with bristles of plastic material such as polypropylene or polyester.
  • the ends of the hub 10 are carried by an intermediate frame 12 articulated at 13 on the supporting frame 2.
  • the frame 12 carries the hydraulic motor 14 which ensures the rotation drive of the rotary brush 1, via a chain not shown.
  • the motor 14 is adapted to drive the brush 1 in the direction of the orientation arrow 15.
  • the articulation axis 13 extends parallel to the hub 10 of the brush 1, perpendicular to the direction of advance.
  • An adjustable link arm 16 defines the position of the pivoting frame 12 relative to the supporting frame 2.
  • This arm 16 is placed on one of the sides of the frame 2 and it is articulated at 17 on the intermediate frame 12; it crosses the upper part of the chassis 2 by means of an orifice in which it has the possibility of sliding and it has a plurality of orifices 18 in its upper part, which allow its adjustable fixing on said chassis 2 by the through a removable axis, for example in the form of a pin.
  • This axis is simply threaded into one of the holes 18, above the chassis 2; it acts as a stop by coming to bear on the upper part of the chassis 2, under the effect of the weight of the frame 12 and of the brush 1, and it leaves free the upward movement of the arm 16.
  • a safety assembly is thus obtained which allows the operator to very easily adjust the position of the rotary brush 1 relative to the ground, and which allows this brush 1 and also its support frame 12 to retract towards the top in case it encounters an obstacle.
  • the rotary brush 1 cooperates with a deflector system in the form of a flexible sheet 20 arranged to propel the sweepings upwards, over said brush and backwards, with a view to their recovery in a storage tank 22.
  • the supporting frame 2 covers and surrounds the rotary brush 1 and the storage tank 22.
  • One of the ends of the flexible sheet 20 is fixed to the lower front part of the frame 2; this sheet follows the contour of the brush bristles and it extends over said brush 1 and towards the rear, bearing under the cover element of the chassis 2.
  • adjustable pushers 24 arranged on the chassis 2.
  • These pushers 24 are arranged to press on the flexible sheet 20 in order to modify the curvature of that -To follow the contour of the bristles as well as possible.
  • the pushers 24 are regularly distributed over the width of the chassis; they consist of slides guided in slides arranged in the upper part of the chassis 2.
  • the active end of the slides has a transverse flat interposed between the cover element of the chassis 2 and the flexible sheet 20 to increase the contact surface; the positioning of the pushers 24 is adjusted manually by means of a pin or of a removable pin cooperating with orifices, one arranged in the slide part and the others on the height of the slides.
  • the different pushers with their transverse plate are independent of each other to allow the operator to adapt the positioning of the flexible sheet 20 as a function of the wear of the brush bristles which may not be regular. It is possible, for example, to provide two pushers over the width of the chassis of the sweeper, each pushbutton comprising a transverse plate whose length is slightly less than half the width of the sheet 20.
  • the deflector plate 20 is integral with the chassis 2 of the sweeper and completely independent of the movements of the intermediate frame 12 which carries the rotary brush 1. Therefore, the adjustment of the positioning of the brush 1 relative to the ground and the adjustment of the positioning of the sheet flexible 20 can be made independently.
  • the frame 2 On the front and on the sides of the rotary brush 1, the frame 2 is extended to the ground by a flexible skirt 25, made of rubber or material similar.
  • This flap 26, made of sheet metallic, allows to initiate the guidance of the swept materials; his articulation on the supporting frame 2 allows its retraction in the event of presence of a stone or any other obstacle strewn on the ground.
  • the storage bin 22 is arranged just behind the rotating brush 1; it consists of a movable part 28 forming its bottom, its wall rear and its lateral sides, and of a fixed part 29, integral with the chassis 2, forming its front wall.
  • the fixed part 29 is arranged substantially vertically just behind the rotary brush 1.
  • the movable part 28 is articulated around a horizontal axis 30 perpendicular to the direction of advancement and it is maneuvered, at each of its ends, by a system of connecting rods 31 actuated by a hydraulic cylinder 32, for give tank 22 a "fill" position (Figure 1) and a position “Drain” ( Figure 2).
  • the two hydraulic cylinders side 32 can be directly connected to the mobile part 28 of the tank 22, the system of lateral connecting rods 31 then being eliminated.
  • the box 2 with the flexible skirt 25 defines an almost closed assembly which limits the formation of an external dust cloud when setting up sweeper work.
  • Figure 1 shows the sweeper-collector resting on the ground and in working position.
  • the storage tank 22 is in position "Filling"; its movable part 28 is in abutment against the sheet complementary 34, at the rear, and against the fixed part 29, on the front.
  • the brush 1 is rotated in the direction of the orientation arrow 15 to propel the sweeps towards the deflector system 20, 26, in view of their recovery backwards in the storage bin 22.
  • the structure of the tray 22 is adapted to define a large storage capacity.
  • the machine When the tank 22 must be emptied, the machine is raised by means of the coupling means of the towing vehicle and the hydraulic jacks 32 are actuated to cause the movable part 28 of the tank 22 to tilt, around the axis d hinge 30.
  • the movable part 28 is detached from the fixed part 29 and the swept material is removed by simple gravity, on the ground or in a suitable container.
  • This “emptying” position of the storage bin is shown in FIG. 2.
  • the breakdown of the storage bin 22 into a movable part 28 associated with a fixed part 29 makes it possible to limit the degree of tilting in order to obtain optimal emptying.
  • the intermediate frame 12 which carries the rotary brush and which is articulated on the pivot axis 13 allows positioning adjustment of said brush 1 relative to the ground. This adjustment is made using the adjustable arm 18, in particular as a function of the wear of the brush bristles.
  • the configuration of the deflector plate 20 can be modified in parallel, to closely follow the outline of the brush bristles, in order to optimize the sweep / pickup operation. This change in positioning or configuration is achieved by manually operating the pushers 24 so that their transverse end plate applies a pressure of bending on the flexible sheet 20.
  • FIG. 1 and 2 there is shown a complementary lateral brush 38 mounted on a vertical axis and placed in front of the rotary brush 1 to recenter the sweeps. It is also possible to provide for the presence of a water tank 40 associated with a distribution ramp, to allow watering of the sweeper during operation, in order to limit the presence of dust in suspension in the air. This water tank can be generally flat to allow the operator to visually follow the work performed.
  • chassis 2 can also include means for supporting an oil tank 41 to supply the brush motor 1, that of the complementary brush 38 and the jacks 32.
  • the hydraulic motor 14 of the rotary brush 1 and the lateral hydraulic jacks 32 which operate the storage tank 22 are supplied in parallel by the double-acting auxiliary socket of the vehicle, as shown in the hydraulic diagram of the figure 3.
  • the hydraulic motor 14 is connected to the double-acting hydraulic outlet 42 by means of a supply pipe 43 and by a return pipe 44.
  • a non-return valve 45 is placed on the pipe. back 44.
  • the two hydraulic cylinders 32 are connected together by a first pipe 46 which connects the chambers on the rod side, and by a second pipe 47 which connects the two other rooms.
  • a complementary piping 48 connects the piping 43 and 47; a last pipe 49 connects the pipe 46 and the pipe 44, between the hydraulic outlet 42 and the non-return valve 45.
  • the feed rotates the cylindrical brush 1 and it maintains the rod of the cylinders 32 elongated to place the storage tank 22 in the "filling" position.
  • the non-return valve 45 allows the return oil to pass.
  • the oil feeds the rod side cylinders to place the storage tank in the "drain”position; the non-return valve 45 prevents the hydraulic motor 14 from being supplied and the oil returns to the hydraulic outlet 42 through the pipes 48 and 43.
  • Figure 4 shows a similar type of sweeper but which does not have a side brush, oil tank and tank of water. It has a compact and space-saving appearance which allows the operator to easily follow the work carried out.
  • This machine also includes another type of coupling adapted to allow hooking on the deck of a forklift.
  • the connecting device 50 is placed at the rear of the machine to allow working in thrust. It consists of two lateral arms 51 each comprising a low connection point 52 and a high hooking element 53. These two arms 51 are rigidly connected by square tubes and they are arranged to allow effective attachment to the vehicle bulkhead.
  • the two arms 51 have rear extensions 54 connected by a low axis 55 and by a high axis 56.
  • the two axes 55 and 56 are housed in oversized lights, respectively 57 and 58, arranged in lateral flanges 60 integral with the carrying frame 2.
  • the lights 57 are arranged in the lower part of the flanges 60; they have a generally oblong vertical shape which allows a vertical displacement of the axis 55.
  • the openings 58 are arranged in the upper part of the flanges 60; they have a generally rectangular shape which allows vertical and front-to-back movement of the axis 56.
  • FIGS. 7 and 8 the same mounting principle has been illustrated. "Floating" for another connecting device 61 adapted to ensure a mounting on a different type of forklift.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Description

La présente invention concerne une machine de balayage du sol qui permet aussi le ramassage des balayures dans un bac de stockage aménagé à cet effet.The present invention relates to a soil sweeping machine which also allows the collection of sweepings in a storage bin designed for this purpose.

Il existe différents types de balayeuses comprenant une brosse rotative d'axe horizontal associée à un bac ou à un conteneur qui forme un collecteur pour la matière balayée. L'ensemble brosse/collecteur est généralement monté sur un châssis muni de roues et de moyens d'attelage à un véhicule tracteur ; on peut aussi trouver des ensembles automoteurs.
Une balayeuse de ce genre est par exemple décrite dans le document FR-A-2 506 360. Cette machine comprend une brosse rotative qui coopère avec une tôle déflectrice permettant de propulser les matières balayées vers le haut et vers l'arrière, en direction du conteneur à déchets. La brosse rotative est portée par une tête mobile sur laquelle est fixée la partie inférieure de la tôle déflectrice et qui a la possibilité de pivoter entre une position réglable de travail dans laquelle la brosse est en contact avec la surface à balayer, et une position repos dans laquelle ladite brosse est écartée de la surface de travail.
Cette machine dispose d'une bonne capacité de ramassage et de stockage des matières balayées mais sa structure ne permet pas d'obtenir une qualité constante de balayage dans le temps, notamment au fur et à mesure de l'usure des poils de la brosse rotative.There are different types of sweepers including a rotary brush with a horizontal axis associated with a bin or a container which forms a collector for the swept material. The brush / collector assembly is generally mounted on a chassis provided with wheels and means for coupling to a tractor vehicle; you can also find self-propelled assemblies.
A sweeper of this kind is for example described in the document FR-A-2 506 360. This machine comprises a rotary brush which cooperates with a deflector plate making it possible to propel the swept materials upwards and backwards, towards the waste container. The rotary brush is carried by a movable head on which the lower part of the deflector plate is fixed and which has the possibility of pivoting between an adjustable working position in which the brush is in contact with the surface to be swept, and a rest position. wherein said brush is spaced from the work surface.
This machine has a good capacity for picking up and storing swept materials, but its structure does not make it possible to obtain a constant quality of sweeping over time, in particular as the bristles of the rotary brush wear and tear. .

La présente invention propose de perfectionner ce genre de balayeuse, en particulier pour permettre l'obtention d'un balayage de qualité sensiblement constante malgré l'usure progressive des poils de la brosse qui entraíne une diminution de son diamètre de travail.
Pour cela, on prévoit des possibilités de réglage de la structure de la balayeuse, qui permettent à l'opérateur de modifier la configuration de ses organes actifs pour tenir compte de l'évolution du diamètre de travail de la brosse rotative dans le temps.The present invention proposes to improve this kind of sweeper, in particular to allow obtaining a substantially constant quality sweep despite the gradual wear of the bristles of the brush which causes a reduction in its working diameter.
For this, provision is made for adjustment of the structure of the sweeper, which allow the operator to modify the configuration of his active members to take account of the change in the working diameter of the rotary brush over time.

La machine de balayage et de ramassage des balayures selon l'invention est du type constitué d'un châssis monté sur des roues et muni de moyens d'attelage à un véhicule qui la tracte ou qui la pousse, tel qu'un tracteur agricole, un chariot élévateur, une chargeuse, un tractopelle, une pelleteuse ... etc. Ce châssis porte une brosse rotative cylindrique d'axe horizontal qui s'étend perpendiculairement au sens d'avancement ; la brosse rotative coopère avec un système déflecteur pour propulser les matières balayées par-dessus elle et vers l'arrière, en direction d'un bac de stockage qui est monté à pivotement sur ledit châssis porteur, et elle comporte des moyens qui permettent le réglage de sa position par rapport au sol, notamment pour permettre de faire évoluer ce positionnement en fonction de l'usure des poils de brosse.
Conformément à l'invention, cette balayeuse comporte aussi des moyens de réglage de la position du système déflecteur qui permettent de faire évoluer sa courbure en fonction du positionnement de la brosse rotative et plus particulièrement en fonction de l'évolution du contour des poils de cette brosse.The sweeping and sweeping machine according to the invention is of the type consisting of a chassis mounted on wheels and provided with means of coupling to a vehicle which tows or pushes it, such as an agricultural tractor, a forklift, a loader, a backhoe, a backhoe ... etc. This chassis carries a cylindrical rotary brush of horizontal axis which extends perpendicular to the direction of advance; the rotary brush cooperates with a deflector system to propel the swept material over it and towards the rear, in the direction of a storage tank which is pivotally mounted on said carrying frame, and it comprises means which allow adjustment from its position relative to the ground, in particular to allow this positioning to change as a function of the wear of the brush bristles.
According to the invention, this sweeper also comprises means for adjusting the position of the deflector system which make it possible to change its curvature as a function of the positioning of the rotary brush and more particularly as a function of the evolution of the contour of the bristles of this brush.

De préférence, le système déflecteur est constitué d'une tôle flexible qui est fixée à l'une de ses extrémités sur le châssis porteur, laquelle tôle est soumise à l'action d'un ou de plusieurs poussoirs réglables qui sont solidaires dudit châssis et qui permettent de modifier sa courbure autour des poils de la brosse.Preferably, the deflector system consists of a sheet flexible which is fixed at one of its ends to the supporting frame, which sheet is subjected to the action of one or more pushers adjustable which are integral with said chassis and which make it possible to modify its curvature around the bristles of the brush.

Les moyens de réglage de la position de la brosse rotative par rapport au sol sont avantageusement constitués par un bâti intermédiaire qui porte ladite brosse et qui est monté à pivotement sur le châssis porteur autour d'un axe horizontal. La position de ce bâti intermédiaire par rapport au châssis porteur est fixée par des moyens de liaison réglables en forme de bras. Ce bras est articulé sur le bâti intermédiaire ; il a la possibilité de coulisser dans un orifice aménagé dans le châssis porteur et il est lui-même muni d'une pluralité d'orifices adaptés pour positionner un axe venant en butée contre ledit châssis, sous l'effet du poids dudit bâti intermédiaire et de ladite brosse.The means for adjusting the position of the rotary brush by relative to the ground are advantageously constituted by an intermediate frame which carries said brush and which is pivotally mounted on the chassis carrier around a horizontal axis. The position of this intermediate frame by relation to the supporting frame is fixed by adjustable connecting means shaped like an arm. This arm is articulated on the intermediate frame; he has the possibility of sliding in an orifice fitted in the supporting frame and it is itself provided with a plurality of orifices adapted to position a axis abutting against said chassis, under the effect of the weight of said frame intermediate and said brush.

Selon une autre caractéristique, la balayeuse comporte des moyens d'attelage qui permettent son levage par le véhicule tracteur ou pousseur, notamment pour assurer l'opération de vidange du bac de stockage, par une manoeuvre de pivotement de celui-ci.
Cette balayeuse travaille toujours dans le même sens d'avancement ; elle peut être poussée ou tractée, selon le type de véhicule utilisé et le système de liaison aux moyens d'attelage du véhicule est adapté en conséquence, disposé soit à l'avant, soit à l'arrière de la machine.According to another characteristic, the sweeper comprises coupling means which allow it to be lifted by the tractor or pusher vehicle, in particular to ensure the operation of emptying the storage bin, by a pivoting operation of the latter.
This sweeper always works in the same direction of travel; it can be pushed or pulled, depending on the type of vehicle used and the system for connecting to the vehicle coupling means is adapted accordingly, arranged either at the front or at the rear of the machine.

Le châssis porteur est de préférence en forme de caisson qui recouvre et entoure la brosse rotative et le bac de stockage ; il est muni de roues d'appui sur le sol devant et derrière la brosse rotative.The supporting frame is preferably in the form of a box which covers and surrounds the rotating brush and the storage tank; he is provided support wheels on the ground in front of and behind the rotating brush.

Selon une forme de réalisation préférée, le bac de stockage est soumis à l'action de deux vérins hydrauliques latéraux pour la manoeuvre autour de son axe de pivotement. Ces deux vérins hydrauliques sont alimentés en parallèle par une prise hydraulique double effet, un clapet anti-retour étant placé sur le circuit propre au moteur de brosse de façon, dans un sens d'alimentation, à permettre la rotation de la brosse tout en actionnant les vérins pour placer le bac en position de remplissage et, dans l'autre sens d'alimentation, à permettre le mouvement desdits vérins pour assurer la vidange de ce bac, le clapet anti-retour empêchant alors l'huile d'entraíner le moteur hydraulique de la brosse.According to a preferred embodiment, the storage tank is subjected to the action of two lateral hydraulic cylinders for the operation around its pivot axis. These two hydraulic cylinders are supplied in parallel by a double-acting hydraulic outlet, a valve non-return valve being placed on the brush motor's own circuit, in a feeding direction, to allow rotation of the brush while actuating the jacks to place the tank in the filling position and, in the other feeding direction, to allow movement of said cylinders to ensure the emptying of this tank, the non-return valve then preventing the oil to drive the hydraulic motor of the brush.

De préférence, le bac de stockage est constitué - d'une partie mobile qui est montée pivotante sur le châssis porteur, et - d'une partie fixe, solidaire dudit châssis, qui forme sa paroi frontale lorsqu'il est placé en position de récupération des balayures. Cette particularité permet de limiter le degré de basculement nécessaire à la vidange.Preferably, the storage bin consists of - a part mobile which is pivotally mounted on the supporting frame, and - of a part fixed, integral with said chassis, which forms its front wall when it is placed in the sweep recovery position. This feature allows limit the degree of tilting required for emptying.

D'autre part, la balayeuse comporte un élément de tôle, solidaire de son châssis, sur lequel vient prendre appui la paroi arrière du bac de stockage lorsque celui-ci est placé en position de récupération des matières balayées.On the other hand, the sweeper has a sheet metal element, integral of its chassis, on which the rear wall of the tank comes to bear storage when it is placed in the recovery position for swept materials.

Selon une autre caractéristique, une jupe en matière flexible prolonge le châssis jusqu'au sol, sur l'avant de la brosse rotative et sur ses côtés. Cette jupe est associée à une bavette en matière rigide qui est articulée entre elle et la brosse rotative. According to another characteristic, a skirt made of flexible material extends the chassis to the ground, on the front of the rotating brush and on its ratings. This skirt is associated with a bib in rigid material which is articulated between it and the rotating brush.

Toujours selon l'invention, le dispositif de liaison au système d'attelage du véhicule est monté flottant sur le châssis porteur.
Dans une forme de réalisation préférée, ce dispositif de liaison est solidaire du châssis porteur par l'intermédiaire d'axes qui coopèrent avec des lumières surdimensionnées.
Selon une forme de réalisation encore préférée, le dispositif de liaison est muni de points de fixation hauts et bas ; le ou les point(s) de fixation bas est (sont) constitué(s) d'un axe coopérant avec une lumière oblongue verticale aménagée sur le châssis porteur, pour conférer à cet axe une possibilité de mouvement libre en hauteur ; le ou les point(s) de fixation haut(s) est (sont) constitué(s) d'un axe qui coopère avec une lumière de forme carrée ou rectangulaire aménagée sur le châssis porteur, pour conférer une possibilité de mouvement libre audit axe, en hauteur et en basculement avant/arrière.Still according to the invention, the device for connecting to the vehicle coupling system is mounted floating on the carrying frame.
In a preferred embodiment, this connecting device is secured to the carrying frame by means of axes which cooperate with oversized lights.
According to a more preferred embodiment, the connection device is provided with high and low fixing points; the bottom fixing point (s) is (are) constituted (s) of an axis cooperating with a vertical oblong lumen arranged on the supporting frame, to give this axis a possibility of free movement in height; the top fixing point (s) is (are) constituted (s) of an axis which cooperates with a square or rectangular light arranged on the supporting frame, to give a possibility of free movement to said axis , in height and tilting forward / backward.

Mais l'invention sera encore illustrée, sans être aucunement limitée, par la description suivante de différents modes de réalisation, donnés uniquement à titre d'exemples et représentés sur les dessins annexés dans lesquels :

  • la figure 1 est une vue schématique, de côté, qui montre la structure d'une balayeuse-ramasseuse conforme à la présente invention, le bac de stockage étant placé en position « remplissage » ;
  • la figure 2 montre la même machine avec son bac de stockage en position « vidange »;
  • la figure 3 montre le schéma hydraulique de la machine qui est illustrée sur les figures 1 et 2, pour l'actionnement de la brosse rotative et des vérins latéraux de manoeuvre du bac de stockage ;
  • la figure 4 est une vue schématique, de côté, qui illustre un mode de réalisation simplifié de la machine objet de la présente invention, avec un dispositif de liaison au système d'attelage du véhicule pousseur monté flottant sur le châssis porteur ;
  • les figures 5 et 6 montrent les possibilités de débattement du dispositif de liaison de la figure 4 par rapport au châssis porteur ;
  • les figures 7 et 8 illustrent les possibilités de débattement similaires d'un autre type possible de dispositif de liaison.
However, the invention will be further illustrated, without being in any way limited, by the following description of various embodiments, given solely by way of examples and represented in the appended drawings in which:
  • Figure 1 is a schematic side view showing the structure of a sweeper-collector according to the present invention, the storage bin being placed in the "filling"position;
  • Figure 2 shows the same machine with its storage bin in the "drain"position;
  • Figure 3 shows the hydraulic diagram of the machine which is illustrated in Figures 1 and 2, for the actuation of the rotary brush and the lateral actuators of the storage tank;
  • Figure 4 is a schematic side view, which illustrates a simplified embodiment of the machine object of the present invention, with a connecting device to the coupling system of the pusher vehicle mounted floating on the carrier frame;
  • Figures 5 and 6 show the possibilities of movement of the connecting device of Figure 4 relative to the carrier frame;
  • Figures 7 and 8 illustrate the possibilities of similar movement of another possible type of connecting device.

La balayeuse-ramasseuse qui est représentée sur les figures 1 et 2 est constituée d'une brosse rotative 1 portée par un châssis 2 en forme de caisson. Le châssis porteur 2 est muni de roues avant 3 et arrière 4 d'appui sur le sol ; sur l'avant, il comporte un dispositif de liaison 5 au système d'attelage d'un véhicule tracteur qu'il n'a pas été représenté.The sweeper that is shown in Figures 1 and 2 consists of a rotary brush 1 carried by a frame 2 in the form of caisson. The supporting frame 2 is provided with front 3 and rear 4 wheels support on the ground; on the front, it includes a connection device 5 to coupling system of a towing vehicle that has not been shown.

Les roues avant 3 et arrière 4 sont placées de part et d'autre de la brosse rotative 1. Elles sont réglables en hauteur, montées folles sur leur axe de rotation horizontal et elles sont solidarisées avec le châssis porteur 2 par l'intermédiaire d'un axe vertical libre en rotation.
Le dispositif de liaison 5 permet l'accrochage sur le système d'attelage trois points d'un tracteur agricole. Ce dispositif de liaison 5 est constitué de deux points bas latéraux 6 et d'un point haut central 7 qui sont destinés à coopérer avec des axes de fixation. Le point haut de liaison 7 comporte une lumière oblongue horizontale 8 qui confère une possibilité de débattement d'avant en arrière permettant à l'attelage d'absorber les mouvements liés notamment aux irrégularités du sol. Le dispositif de liaison 5 et le système d'attelage du véhicule tracteur permettent le levage de la machine au-dessus du sol pour obtenir un ensemble intégralement porté.The front 3 and rear 4 wheels are placed on either side of the rotary brush 1. They are adjustable in height, idly mounted on their horizontal axis of rotation and they are secured to the carrying frame 2 by means of a vertical axis free in rotation.
The connecting device 5 allows the attachment to the three-point hitch system of an agricultural tractor. This connecting device 5 consists of two lateral low points 6 and a central high point 7 which are intended to cooperate with fixing pins. The high connection point 7 comprises a horizontal oblong lumen 8 which gives the possibility of front-to-rear travel allowing the hitch to absorb movements linked in particular to irregularities in the ground. The connecting device 5 and the coupling system of the towing vehicle allow the machine to be lifted above the ground to obtain a fully supported assembly.

La brosse rotative 1 est positionnée horizontalement et perpendiculairement par rapport au sens d'avancement du véhicule tracteur.The rotary brush 1 is positioned horizontally and perpendicular to the direction of travel of the vehicle tractor.

Cette brosse rotative 1 a été schématisée sous la forme d'un cylindre ; elle est en fait constituée d'un moyeu horizontal 10 qui définit son axe de rotation et sur lequel sont enfilés des disques munis de poils en matière plastique genre polypropylène ou polyester.
Les extrémités du moyeu 10 sont portées par un bâti intermédiaire 12 articulé en 13 sur le châssis porteur 2. Le bâti 12 porte le moteur hydraulique 14 qui assure l'entraínement en rotation de la brosse rotative 1, par l'intermédiaire d'une chaíne de transmission non représentée. Le moteur 14 est adapté pour entraíner la brosse 1 dans le sens de la flèche d'orientation 15. L'axe d'articulation 13 s'étend parallèlement au moyeu 10 de la brosse 1, perpendiculairement au sens d'avancement.This rotary brush 1 has been shown diagrammatically in the form of a cylinder; it is in fact made up of a horizontal hub 10 which defines its axis of rotation and on which discs are fitted with bristles of plastic material such as polypropylene or polyester.
The ends of the hub 10 are carried by an intermediate frame 12 articulated at 13 on the supporting frame 2. The frame 12 carries the hydraulic motor 14 which ensures the rotation drive of the rotary brush 1, via a chain not shown. The motor 14 is adapted to drive the brush 1 in the direction of the orientation arrow 15. The articulation axis 13 extends parallel to the hub 10 of the brush 1, perpendicular to the direction of advance.

Un bras de liaison réglable 16 définit la position du bâti pivotant 12 par rapport au châssis porteur 2. Ce bras 16 est placé sur l'un des côtés du châssis 2 et il est articulé en 17 sur le bâti intermédiaire 12 ; il traverse la partie supérieure du châssis 2 par l'intermédiaire d'un orifice dans lequel il a la possibilité de coulisser et il comporte une pluralité d'orifices 18 dans sa partie supérieure, qui permettent sa fixation réglable sur ledit châssis 2 par l'intermédiaire d'un axe amovible, par exemple en forme de goupille. Cet axe est simplement enfilé dans l'un des orifices 18, au-dessus du châssis 2 ; il sert de butée en venant en appui sur la partie supérieure du châssis 2, sous l'effet du poids du bâti 12 et de la brosse 1, et il laisse libre le mouvement vers le haut du bras 16.
On obtient ainsi un montage de sécurité qui permet à l'opérateur de régler très facilement la position de la brosse rotative 1 par rapport au sol, et qui permet à cette brosse 1 et ainsi qu'à son bâti support 12 de s'escamoter vers le haut dans le cas où elle rencontre un obstacle.An adjustable link arm 16 defines the position of the pivoting frame 12 relative to the supporting frame 2. This arm 16 is placed on one of the sides of the frame 2 and it is articulated at 17 on the intermediate frame 12; it crosses the upper part of the chassis 2 by means of an orifice in which it has the possibility of sliding and it has a plurality of orifices 18 in its upper part, which allow its adjustable fixing on said chassis 2 by the through a removable axis, for example in the form of a pin. This axis is simply threaded into one of the holes 18, above the chassis 2; it acts as a stop by coming to bear on the upper part of the chassis 2, under the effect of the weight of the frame 12 and of the brush 1, and it leaves free the upward movement of the arm 16.
A safety assembly is thus obtained which allows the operator to very easily adjust the position of the rotary brush 1 relative to the ground, and which allows this brush 1 and also its support frame 12 to retract towards the top in case it encounters an obstacle.

D'autre part, la brosse rotative 1 coopère avec un système déflecteur en forme de tôle flexible 20 agencée pour propulser les balayures vers le haut, par-dessus ladite brosse et en arrière, en vue de leur récupération dans un bac de stockage 22.
Le châssis porteur 2 recouvre et entoure la brosse rotative 1 et le bac de stockage 22. L'une des extrémités de la tôle flexible 20 est fixée sur la partie inférieure avant du châssis 2 ; cette tôle suit le contour des poils de brosse et elle s'étend par-dessus ladite brosse 1 et vers l'arrière, en prenant appui sous l'élément de couverture du châssis 2.
Dans la zone de tôle 20 qui suit le contour des poils de brosse, on remarque la présence de poussoirs réglables 24 aménagés sur le châssis 2. Ces poussoirs 24 sont agencés pour venir appuyer sur la tôle flexible 20 en vue de modifier la courbure de celle-ci pour suivre au mieux le contour des poils de brosse. Les poussoirs 24 sont régulièrement répartis sur la largeur du châssis ; ils consistent en des coulisseaux guidés dans des coulisses aménagées dans la partie supérieure du châssis 2. L'extrémité active des coulisseaux comporte un plat transversal interposé entre l'élément de couverture du châssis 2 et la tôle flexible 20 pour augmenter la surface de contact; le réglage du positionnement des poussoirs 24 s'effectue manuellement par l'intermédiaire d'une goupille ou d'un axe amovible coopérant avec des orifices, l'un aménagé dans la partie coulisse et les autres sur la hauteur des coulisseaux. Les différents poussoirs avec leur plat transversal sont indépendants les uns des autres pour permettre à l'opérateur d'adapter le positionnement de la tôle flexible 20 en fonction de l'usure des poils de brosse qui peut ne pas être régulière.
On peut par exemple prévoir deux poussoirs sur la largeur du châssis de la balayeuse, chaque poussoir comprenant un plat transversal dont la longueur est légèrement inférieure à la moitié de la largeur de la tôle 20.On the other hand, the rotary brush 1 cooperates with a deflector system in the form of a flexible sheet 20 arranged to propel the sweepings upwards, over said brush and backwards, with a view to their recovery in a storage tank 22.
The supporting frame 2 covers and surrounds the rotary brush 1 and the storage tank 22. One of the ends of the flexible sheet 20 is fixed to the lower front part of the frame 2; this sheet follows the contour of the brush bristles and it extends over said brush 1 and towards the rear, bearing under the cover element of the chassis 2.
In the sheet metal zone 20 which follows the contour of the brush bristles, we note the presence of adjustable pushers 24 arranged on the chassis 2. These pushers 24 are arranged to press on the flexible sheet 20 in order to modify the curvature of that -To follow the contour of the bristles as well as possible. The pushers 24 are regularly distributed over the width of the chassis; they consist of slides guided in slides arranged in the upper part of the chassis 2. The active end of the slides has a transverse flat interposed between the cover element of the chassis 2 and the flexible sheet 20 to increase the contact surface; the positioning of the pushers 24 is adjusted manually by means of a pin or of a removable pin cooperating with orifices, one arranged in the slide part and the others on the height of the slides. The different pushers with their transverse plate are independent of each other to allow the operator to adapt the positioning of the flexible sheet 20 as a function of the wear of the brush bristles which may not be regular.
It is possible, for example, to provide two pushers over the width of the chassis of the sweeper, each pushbutton comprising a transverse plate whose length is slightly less than half the width of the sheet 20.

La tôle déflectrice 20 est solidaire du châssis 2 de la balayeuse et complètement indépendante des mouvements du bâti intermédiaire 12 qui porte la brosse rotative 1. De ce fait, le réglage du positionnement de la brosse 1 par rapport au sol et le réglage du positionnement de la tôle flexible 20 peuvent être réalisés indépendamment.The deflector plate 20 is integral with the chassis 2 of the sweeper and completely independent of the movements of the intermediate frame 12 which carries the rotary brush 1. Therefore, the adjustment of the positioning of the brush 1 relative to the ground and the adjustment of the positioning of the sheet flexible 20 can be made independently.

Sur l'avant et sur les côtés de la brosse rotative 1, le châssis 2 se prolonge jusqu'au sol par une jupe flexible 25, en caoutchouc ou matière similaire. Sur l'avant, entre la jupe 25 et la brosse rotative 1, on remarque la présence d'une bavette 26 articulée en 27 et dont la forme générale est adaptée pour suivre le contour des poils de brosse, vers le bas et dans la continuité de la tôle déflectrice 20. Cette bavette 26, réalisée en tôle métallique, permet d'initier le guidage des matières balayées; son articulation sur le châssis porteur 2 permet son escamotage en cas de présence d'une pierre ou de tout autre obstacle jonché sur le sol.On the front and on the sides of the rotary brush 1, the frame 2 is extended to the ground by a flexible skirt 25, made of rubber or material similar. On the front, between the skirt 25 and the rotary brush 1, we notice the presence of a flap 26 articulated at 27 and whose general shape is suitable for following the contour of the brush bristles, downwards and in the continuity of the deflecting sheet 20. This flap 26, made of sheet metallic, allows to initiate the guidance of the swept materials; his articulation on the supporting frame 2 allows its retraction in the event of presence of a stone or any other obstacle strewn on the ground.

Le bac de stockage 22 est disposé juste derrière la brosse rotative 1; il est constitué d'une partie mobile 28 formant son fond, sa paroi arrière et ses flancs latéraux, et d'une partie fixe 29, solidaire du châssis 2, formant sa paroi frontale. La partie fixe 29 est disposée sensiblement verticalement juste derrière la brosse rotative 1. La partie mobile 28 est articulée autour d'un axe horizontal 30 perpendiculaire au sens d'avancement et elle est manoeuvrée, à chacune de ses extrémités, par un système de bielles 31 actionnées par un vérin hydraulique 32, pour conférer au bac 22 une position « remplissage » (figure 1) et une position « vidange» (figure 2). Eventuellement, les deux vérins hydrauliques latéraux 32 peuvent être en prise directe sur la partie mobile 28 du bac 22, le système de bielles latérales 31 étant alors supprimé.The storage bin 22 is arranged just behind the rotating brush 1; it consists of a movable part 28 forming its bottom, its wall rear and its lateral sides, and of a fixed part 29, integral with the chassis 2, forming its front wall. The fixed part 29 is arranged substantially vertically just behind the rotary brush 1. The movable part 28 is articulated around a horizontal axis 30 perpendicular to the direction of advancement and it is maneuvered, at each of its ends, by a system of connecting rods 31 actuated by a hydraulic cylinder 32, for give tank 22 a "fill" position (Figure 1) and a position "Drain" (Figure 2). Optionally, the two hydraulic cylinders side 32 can be directly connected to the mobile part 28 of the tank 22, the system of lateral connecting rods 31 then being eliminated.

Sur les figures 1 et 2, on remarque la présence d'un élément de tôle complémentaire 34 solidaire du châssis 2 et sur lequel vient prendre appui la paroi arrière du bac de stockage 22, en position « remplissage ». D'autre part, la bordure supérieure des flancs latéraux de la partie mobile 28 comporte avantageusement un retour externe qui compense l'épaisseur de l'axe saillant 30 et des bielles 31. Ce retour externe vient affleurer la paroi latérale du châssis 2 pour former une sorte de joint limitant la sortie des matières stockées.In Figures 1 and 2, we note the presence of an element of complementary sheet 34 secured to the chassis 2 and on which comes to take support the rear wall of the storage tank 22, in the "filling" position. On the other hand, the upper edge of the lateral sides of the movable part 28 advantageously includes an external feedback which compensates the thickness of the projecting axis 30 and the connecting rods 31. This external return comes flush with the side wall of frame 2 to form a kind of joint limiting the outflow of stored materials.

Lorsque le bac de stockage 22 est en position « remplissage », le caisson 2 avec la jupe flexible 25 définit un ensemble quasiment clos qui limite la formation d'un nuage externe de poussières lors de la mise en oeuvre de la balayeuse.When the storage tank 22 is in the "filling" position, the box 2 with the flexible skirt 25 defines an almost closed assembly which limits the formation of an external dust cloud when setting up sweeper work.

La figure 1 montre la balayeuse-ramasseuse en appui sur le sol et en position travail. Le bac de stockage 22 est en position « remplissage » ; sa partie mobile 28 est en appui contre la tôle complémentaire 34, à l'arrière, et contre la partie fixe 29, sur l'avant. La brosse 1 est entraínée en rotation dans le sens de la flèche d'orientation 15 pour propulser les balayures vers le système déflecteur 20, 26, en vue de leur récupération vers l'arrière dans le bac de stockage 22. La structure du bac 22 est adaptée pour définir une grande capacité de stockage.Figure 1 shows the sweeper-collector resting on the ground and in working position. The storage tank 22 is in position "Filling"; its movable part 28 is in abutment against the sheet complementary 34, at the rear, and against the fixed part 29, on the front. The brush 1 is rotated in the direction of the orientation arrow 15 to propel the sweeps towards the deflector system 20, 26, in view of their recovery backwards in the storage bin 22. The structure of the tray 22 is adapted to define a large storage capacity.

Lorsque le bac 22 doit être vidangé, la machine est soulevée par l'intermédiaire des moyens d'attelage du véhicule tracteur et les vérins hydrauliques 32 sont actionnés pour provoquer le basculement de la partie mobile 28 du bac 22, autour de l'axe d'articulation 30. La partie mobile 28 se désolidarise de la partie fixe 29 et les matières balayées sont évacuées par simple gravité, sur le sol ou dans un conteneur approprié.
Cette position « vidange » du bac de stockage est représentée sur la figure 2. La décomposition du bac de stockage 22 en une partie mobile 28 associée à une partie fixe 29 permet de limiter le degré de basculement pour obtenir une vidange optimale.When the tank 22 must be emptied, the machine is raised by means of the coupling means of the towing vehicle and the hydraulic jacks 32 are actuated to cause the movable part 28 of the tank 22 to tilt, around the axis d hinge 30. The movable part 28 is detached from the fixed part 29 and the swept material is removed by simple gravity, on the ground or in a suitable container.
This “emptying” position of the storage bin is shown in FIG. 2. The breakdown of the storage bin 22 into a movable part 28 associated with a fixed part 29 makes it possible to limit the degree of tilting in order to obtain optimal emptying.

Le bâti intermédiaire 12 qui porte la brosse rotative et qui est articulé sur l'axe de pivotement 13 permet le réglage du positionnement de ladite brosse 1 par rapport au sol. Ce réglage est réalisé au moyen du bras réglable 18, en particulier en fonction de l'usure des poils de brosse. Lorsque ce nouveau réglage de positionnement est réalisé, la configuration de la tôle déflectrice 20 peut être modifiée en parallèle, pour suivre au plus près le contour des poils de brosse, afin d'optimiser l'opération de balayage/ramassage. Cette modification de positionnement ou de configuration est réalisée en actionnant manuellement les poussoirs 24 pour que leur plat transversal d'extrémité applique une pression de cintrage sur la tôle flexible 20.The intermediate frame 12 which carries the rotary brush and which is articulated on the pivot axis 13 allows positioning adjustment of said brush 1 relative to the ground. This adjustment is made using the adjustable arm 18, in particular as a function of the wear of the brush bristles. When this new positioning adjustment is made, the configuration of the deflector plate 20 can be modified in parallel, to closely follow the outline of the brush bristles, in order to optimize the sweep / pickup operation. This change in positioning or configuration is achieved by manually operating the pushers 24 so that their transverse end plate applies a pressure of bending on the flexible sheet 20.

Différentes options peuvent venir se greffer sur le châssis porteur 2, en vue d'optimiser le fonctionnement de la machine.
Sur les figures 1 et 2, on a représenté un balai complémentaire latéral 38 monté sur un axe vertical et placé devant la brosse rotative 1 pour recentrer les balayures.
On peut aussi prévoir la présence d'un réservoir d'eau 40 associé à une rampe de distribution, pour permettre l'arrosage de la balayeuse en cours de fonctionnement, afin de limiter la présence de poussières en suspension dans l'air. Ce réservoir d'eau peut être de forme générale plate pour permettre à l'opérateur de suivre visuellement le travail réalisé.Different options can be grafted onto the supporting frame 2, in order to optimize the operation of the machine.
In Figures 1 and 2, there is shown a complementary lateral brush 38 mounted on a vertical axis and placed in front of the rotary brush 1 to recenter the sweeps.
It is also possible to provide for the presence of a water tank 40 associated with a distribution ramp, to allow watering of the sweeper during operation, in order to limit the presence of dust in suspension in the air. This water tank can be generally flat to allow the operator to visually follow the work performed.

En règle générale, le moteur hydraulique 14 et les vérins hydrauliques latéraux 32 sont alimentés par la source hydraulique du véhicule tracteur. Si cela s'avère nécessaire, le châssis 2 peut également comporter des moyens support d'un réservoir d'huile 41 pour alimenter le moteur de la brosse 1, celui du balai complémentaire 38 et les vérins 32.As a rule, the hydraulic motor 14 and the cylinders lateral hydraulics 32 are supplied by the hydraulic source of the towing vehicle. If necessary, chassis 2 can also include means for supporting an oil tank 41 to supply the brush motor 1, that of the complementary brush 38 and the jacks 32.

Selon une disposition avantageuse, le moteur hydraulique 14 de la brosse rotative 1 et les vérins hydrauliques latéraux 32 qui manoeuvrent le bac de stockage 22 sont alimentés en parallèle par la prise auxiliaire double effet du véhicule, de la façon représentée sur le schéma hydraulique de la figure 3.
Sur ce schéma, on remarque que le moteur hydraulique 14 est connecté à la prise hydraulique double effet 42 par l'intermédiaire d'une tuyauterie d'alimentation 43 et par une tuyauterie retour 44. Un clapet anti-retour 45 est placé sur la tuyauterie retour 44.
D'autre part, les deux vérins hydrauliques 32 sont connectés entre eux par une première tuyauterie 46 qui relie les chambres côtés tige, et par une seconde tuyauterie 47 qui relie les deux autres chambres. Une tuyauterie complémentaire 48 relie les tuyauteries 43 et 47 ; une dernière tuyauterie 49 relie la tuyauterie 46 et la tuyauterie 44, entre la prise hydraulique 42 et le clapet anti-retour 45.
De la sorte, dans un sens, l'alimentation fait tourner la brosse cylindrique 1 et elle maintien la tige des vérins 32 allongée pour placer le bac de stockage 22 en position « remplissage ». Le clapet anti-retour 45 laisse passer l'huile de retour.
Dans l'autre sens, l'huile alimente les vérins côté tige pour placer le bac de stockage en position « vidange » ; le clapet anti-retour 45 empêche l'alimentation du moteur hydraulique 14 et l'huile retourne vers la prise hydraulique 42 par les tuyauteries 48 et 43. Une telle structure simplifie sensiblement l'alimentation hydraulique de la balayeuse-ramasseuse conforme à la présente invention.According to an advantageous arrangement, the hydraulic motor 14 of the rotary brush 1 and the lateral hydraulic jacks 32 which operate the storage tank 22 are supplied in parallel by the double-acting auxiliary socket of the vehicle, as shown in the hydraulic diagram of the figure 3.
In this diagram, it can be seen that the hydraulic motor 14 is connected to the double-acting hydraulic outlet 42 by means of a supply pipe 43 and by a return pipe 44. A non-return valve 45 is placed on the pipe. back 44.
On the other hand, the two hydraulic cylinders 32 are connected together by a first pipe 46 which connects the chambers on the rod side, and by a second pipe 47 which connects the two other rooms. A complementary piping 48 connects the piping 43 and 47; a last pipe 49 connects the pipe 46 and the pipe 44, between the hydraulic outlet 42 and the non-return valve 45.
In this way, in one direction, the feed rotates the cylindrical brush 1 and it maintains the rod of the cylinders 32 elongated to place the storage tank 22 in the "filling" position. The non-return valve 45 allows the return oil to pass.
In the other direction, the oil feeds the rod side cylinders to place the storage tank in the "drain"position; the non-return valve 45 prevents the hydraulic motor 14 from being supplied and the oil returns to the hydraulic outlet 42 through the pipes 48 and 43. Such a structure substantially simplifies the hydraulic supply of the sweeper-pickup machine according to the present invention .

La figure 4 montre une balayeuse-ramasseur du même genre mais qui est dépourvue de balai latéral, de réservoir d'huile et de réservoir d'eau. Elle présente un aspect compact et peu encombrant qui permet à l'opérateur de suivre très facilement le travail réalisé. Figure 4 shows a similar type of sweeper but which does not have a side brush, oil tank and tank of water. It has a compact and space-saving appearance which allows the operator to easily follow the work carried out.

Cette machine comporte en outre un autre type d'attelage adapté pour permettre l'accrochage sur le tablier d'un chariot élévateur.
Le dispositif de liaison 50 est placé à l'arrière de la machine pour permettre un travail en poussée. Il est constitué de deux bras latéraux 51 comportant chacun un point bas de liaison 52 et un élément de crochetage haut 53. Ces deux bras 51 sont reliés rigidement par des tubes carrés et ils sont agencés pour permettre un accrochage efficace sur le tablier du véhicule.This machine also includes another type of coupling adapted to allow hooking on the deck of a forklift.
The connecting device 50 is placed at the rear of the machine to allow working in thrust. It consists of two lateral arms 51 each comprising a low connection point 52 and a high hooking element 53. These two arms 51 are rigidly connected by square tubes and they are arranged to allow effective attachment to the vehicle bulkhead.

Les deux bras 51 comportent des extensions arrière 54 reliées par un axe bas 55 et par un axe haut 56. Pour obtenir un système d'attelage flottant, les deux axes 55 et 56 viennent se loger dans des lumières surdimensionnées, respectivement 57 et 58, aménagées dans des flasques latéraux 60 solidaires du châssis porteur 2.
Les lumières 57 sont aménagées dans la partie inférieure des flasques 60; elles ont une forme générale oblongue verticale qui permet un déplacement vertical de l'axe 55. Les lumières 58 sont aménagées dans la partie supérieure des flasques 60 ; elles ont une forme générale rectangulaire qui permet un déplacement vertical et d'avant en arrière de l'axe 56. Ce montage « flottant » confère une possibilité de mouvement libre de la balayeuse par rapport au véhicule qui la pousse, aussi bien en hauteur qu'en basculement avant/arrière.
Cette particularité permet à la machine de suivre les irrégularités du sol sans transmettre les mouvements correspondants au véhicule, et inversement. Ces possibilités de débattement sont illustrées sur les figures 5 et 6.The two arms 51 have rear extensions 54 connected by a low axis 55 and by a high axis 56. To obtain a floating coupling system, the two axes 55 and 56 are housed in oversized lights, respectively 57 and 58, arranged in lateral flanges 60 integral with the carrying frame 2.
The lights 57 are arranged in the lower part of the flanges 60; they have a generally oblong vertical shape which allows a vertical displacement of the axis 55. The openings 58 are arranged in the upper part of the flanges 60; they have a generally rectangular shape which allows vertical and front-to-back movement of the axis 56. This “floating” mounting gives the possibility of free movement of the sweeper relative to the vehicle which pushes it, both in height and in '' tilting forward / backward.
This feature allows the machine to follow irregularities in the ground without transmitting the corresponding movements to the vehicle, and vice versa. These possibilities of travel are illustrated in FIGS. 5 and 6.

Sur les figures 7 et 8, on a illustré le même principe de montage « flottant » pour un autre dispositif de liaison 61 adapté pour assurer un montage sur un type différent de chariot élévateur.In FIGS. 7 and 8, the same mounting principle has been illustrated. "Floating" for another connecting device 61 adapted to ensure a mounting on a different type of forklift.

Les systèmes d'attelage illustrés sur les figures 4 à 8 permettent le levage de la balayeuse au-dessus du sol pour assurer la vidange du bac de stockage selon le principe décrit ci-avant, en liaison avec les figures 1 et 2.The coupling systems illustrated in Figures 4 to 8 allow the lifting the sweeper above the ground to empty the tank storage according to the principle described above, in conjunction with Figures 1 and 2.

Claims (13)

  1. An apparatus for sweeping and collecting material comprising a chassis (2) mounted on wheels (3, 4) and provided with coupling means (5, 50, 61) to a towing or pushing vehicle, which chassis (2) carries a cylindrical rotary brush (1) whose horizontal axis (10) is perpendicular to the forward direction, which rotary brush (1) co-operates with a deflector system (20) to propel the swept material above the said brush and to the rear, towards a storage tray (22) that is mounted to pivot on the said carrying chassis (2), and whose rotary brush (1) comprises means for adjusting its position with respect to the ground, notably to enable adaptation of this position in relation to the wear of the brush bristles, characterised in that it comprises means for adjusting the position of the deflector system (20) which enable to suit its curvature in relation to the positioning of the rotary brush (1) and more particularly in relation to the evolution of the contours of the bristles of the said brush (1).
  2. An apparatus according to claim 1, characterised in that it comprises a deflector system comprising a flexible sheet (20) attached at one of its ends to the carrying chassis (2), which sheet (20) is subject to the action of at least one adjustable pusher (24) that is integral with the said chassis (2) and which enables modification of its curvature around the bristles of the brush (1).
  3. An apparatus according to any one of claims 1 or 2, characterised in that it comprises means for adjusting the position of the rotary brush (1) with respect to the ground, having an intermediate frame (12) which carries the said brush (1) and which is mounted to pivot on the carrying chassis (2) around a horizontal axis (13), whereas the position of the said frame (12) with respect to the said carrying chassis (2) is fixed by adjustable linking means in the form of arms (16) swivelled on the said frame (12), whereas the said arm (16) slides in an orifice provided in the said chassis (2) and is provided with a plurality of orifices (18) suited to position a pin stopping against the said chassis (2), under the effect of the weight of the said frame (12) and of the said brush (1).
  4. An apparatus according to any one of claims 1 to 3, characterised in that it comprises coupling means (5, 50, 61) which enable the towing or pushing vehicle to raise the same, notably to ensure the emptying of the storage tray (22) by a pivoting manoeuvre of the said tray.
  5. An apparatus according to any one of claims 1 to 4, characterised in that it comprises a carrying chassis (2) in the form of a caisson covering and surrounding the rotary brush (1) and the storage tray (22).
  6. An apparatus according to any one of claims 1 to 5, characterised in that it comprises a carrying chassis (2) provided with wheels resting on the ground (3, 4) in front of and behind the rotary brush (1).
  7. An apparatus according to any one of claims 1 to 6, characterised in that it comprises a storage tray (22) subject to the action of two lateral hydraulic jacks (32) for manoeuvring around its pivoting axis (30), whereas the hydraulic engine (14) of the rotary brush (1) and the said hydraulic jacks (32) are power-supplied in parallel by a double-action hydraulic socket (42), whereas a return valve (45) is provided on the system belonging to the engine operating the brush (14) in order, in one operating mode, to enable rotation of the said brush (1) while actuating the said jacks (32) to bring the tray (22) in 'filling' position and, in the other operating mode, to enable motion of the said jacks (32) for emptying the tray (22), whereby the return valve (45) prevents the oil from driving the hydraulic engine (14) of the brush (1).
  8. An apparatus according to any one of claims 1 to 7, characterised in that it comprises a storage tray (22) comprising a mobile section (28) mounted to pivot on the carrying chassis (2), and a fixed section (29) integral with the said chassis (2), which fixed section (29) forms the front wall of the said tray (22), when the said tray is placed in a position for collecting the swept material.
  9. An apparatus according to claim 8, characterised in that it comprises a sheeting element (34) integral with the chassis (2) and on which rests the rear wall of the storage tray (22) when the said is placed in a position for collecting the swept material.
  10. An apparatus according to any one of claims 1 to 9, characterised in that it comprises a skirt (25) made of flexible material, that extends the chassis (2) to the ground, at the front of the rotary brush (1) and on its sides, whereas the said skirt (25) is associated with a flap (26) made of rigid material, swivelled between the latter and the said rotary brush (1).
  11. An apparatus according to any one of claims 1 to 10, characterised in that the linking device (5, 50, 61) with the coupling system of the towing vehicle is mounted to pivot on the carrying chassis (2).
  12. An apparatus according to claim 11, characterised in that it comprises a linking device (5, 50, 61) integral with the carrying chassis (2) via pins (55, 56) that co-operate with oversized ports (57, 58).
  13. An apparatus according to claim 12, characterised in that it comprises a linking device (50) provided with upper and lower fastening points, whereas the lower fastening point(s) is(are) made of a pin (55) co-operating with a vertical oblong port (57) provided on the carrying chassis (2), to allow a certain freedom of movement along the height of the said pin (55) and whereas the upper fastening point(s) is(are) made of a pin (56) co-operating with a square or rectangular port (58) provided on the carrying chassis (2), to allow a certain freedom of movement around the said pin (56) in height and in forward/rearward tipping.
EP97402687A 1996-11-13 1997-11-10 Apparatus for sweeping and collecting material Expired - Lifetime EP0843046B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9614008A FR2755708B1 (en) 1996-11-13 1996-11-13 SWEEPING AND COLLECTING MACHINE FOR SWEEPED MATERIALS
FR9614008 1996-11-13

Publications (2)

Publication Number Publication Date
EP0843046A1 EP0843046A1 (en) 1998-05-20
EP0843046B1 true EP0843046B1 (en) 2002-01-23

Family

ID=9497699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402687A Expired - Lifetime EP0843046B1 (en) 1996-11-13 1997-11-10 Apparatus for sweeping and collecting material

Country Status (4)

Country Link
EP (1) EP0843046B1 (en)
DE (1) DE69710030T2 (en)
ES (1) ES2169338T3 (en)
FR (1) FR2755708B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009008719U1 (en) 2009-06-19 2009-09-03 Fiedler Maschinenbau Und Technikvertrieb Gmbh Sweeper with a sweeping roller

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
US6073295A (en) * 1998-08-25 2000-06-13 Tennant Company Sweeping machine with movable recirculation flap
FR2830550B1 (en) * 2001-10-05 2003-12-19 Cochet Sa SWEEPING MACHINE ADAPTABLE TO A SELF-PROPELLED MACHINE
ITPN20150007A1 (en) 2015-04-16 2016-10-16 Nuova Sede Kornmarksvej 1 2605 Br Oendby Danimarca Nilfisk As WASTE AND DEBRIS COLLECTION APPARATUS FOR MOTOR SWEEPERS
US11174607B2 (en) 2015-04-16 2021-11-16 Nilfisk A/S Apparatus for collecting garbage and debris for a motor-sweeper
CN112030842A (en) * 2020-09-04 2020-12-04 北京鸿成科技有限责任公司 Efficient energy-saving environment-friendly road garbage cleaning vehicle

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US3995415A (en) * 1975-04-21 1976-12-07 John Allen Hoffmann Lawn broom

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GB759676A (en) * 1953-09-28 1956-10-24 Albert Holter Lawn sweeper
GB1524953A (en) * 1975-12-02 1978-09-13 Leeford London Ltd Implement mounting assembly
DE3120741A1 (en) * 1981-05-25 1982-12-09 Wiedenmann Gmbh, 7901 Rammingen Sweeping machine
DE8709781U1 (en) * 1987-07-16 1987-09-10 Hermann Schulte GmbH & Co KG, 4442 Salzbergen sweeper

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
US3995415A (en) * 1975-04-21 1976-12-07 John Allen Hoffmann Lawn broom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009008719U1 (en) 2009-06-19 2009-09-03 Fiedler Maschinenbau Und Technikvertrieb Gmbh Sweeper with a sweeping roller

Also Published As

Publication number Publication date
FR2755708B1 (en) 1999-01-29
DE69710030T2 (en) 2002-09-12
FR2755708A1 (en) 1998-05-15
EP0843046A1 (en) 1998-05-20
ES2169338T3 (en) 2002-07-01
DE69710030D1 (en) 2002-03-14

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