EP0843046A1 - Vorrichtung zum Kehren und Aufnehmen von Material - Google Patents

Vorrichtung zum Kehren und Aufnehmen von Material Download PDF

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Publication number
EP0843046A1
EP0843046A1 EP97402687A EP97402687A EP0843046A1 EP 0843046 A1 EP0843046 A1 EP 0843046A1 EP 97402687 A EP97402687 A EP 97402687A EP 97402687 A EP97402687 A EP 97402687A EP 0843046 A1 EP0843046 A1 EP 0843046A1
Authority
EP
European Patent Office
Prior art keywords
brush
frame
machine according
chassis
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97402687A
Other languages
English (en)
French (fr)
Other versions
EP0843046B1 (de
Inventor
Claude Rabaud
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.)
Rabaud SAS
Original Assignee
Rabaud SAS
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 Rabaud SAS filed Critical Rabaud SAS
Publication of EP0843046A1 publication Critical patent/EP0843046A1/de
Application granted granted Critical
Publication of EP0843046B1 publication Critical patent/EP0843046B1/de
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
    • E01H1/04—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 includes means for adjusting the position of the deflector system, in particular to allow its curvature to change 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 box.
  • 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 "Draining (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 follow the contour of the brush weights as closely as possible, 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.
  • the same basic machine is adapted to be able to receive all the options provided.

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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)
EP97402687A 1996-11-13 1997-11-10 Vorrichtung zum Kehren und Aufnehmen von Material Expired - Lifetime EP0843046B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9614008 1996-11-13
FR9614008A FR2755708B1 (fr) 1996-11-13 1996-11-13 Machine de balayage et de ramassage des matieres balayees

Publications (2)

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

Family

ID=9497699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402687A Expired - Lifetime EP0843046B1 (de) 1996-11-13 1997-11-10 Vorrichtung zum Kehren und Aufnehmen von Material

Country Status (4)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0982437A1 (de) * 1998-08-25 2000-03-01 Tennant Company Kehrmaschine mit beweglicher Rückführklappe
FR2830550A1 (fr) * 2001-10-05 2003-04-11 Cochet Sa Balayeuse adaptable a un engin automoteur
WO2016166616A1 (en) * 2015-04-16 2016-10-20 Nilfisk-Advance A/S Apparatus for collecting garbage and debris for a motor-sweeper
US11174607B2 (en) 2015-04-16 2021-11-16 Nilfisk A/S Apparatus for collecting garbage and debris for a motor-sweeper

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009008719U1 (de) 2009-06-19 2009-09-03 Fiedler Maschinenbau Und Technikvertrieb Gmbh Kehrmaschine mit einer Kehrwalze
CN112030842A (zh) * 2020-09-04 2020-12-04 北京鸿成科技有限责任公司 一种高效的节能环保道路垃圾清理车

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2506360A1 (fr) * 1981-05-25 1982-11-26 Wiedenmann Gmbh Balayeuse mobile
DE8709781U1 (de) * 1987-07-16 1987-09-10 Hermann Schulte Gmbh & Co Kg, 4442 Salzbergen, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995415A (en) * 1975-04-21 1976-12-07 John Allen Hoffmann Lawn broom

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2506360A1 (fr) * 1981-05-25 1982-11-26 Wiedenmann Gmbh Balayeuse mobile
DE8709781U1 (de) * 1987-07-16 1987-09-10 Hermann Schulte Gmbh & Co Kg, 4442 Salzbergen, De

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0982437A1 (de) * 1998-08-25 2000-03-01 Tennant Company Kehrmaschine mit beweglicher Rückführklappe
US6073295A (en) * 1998-08-25 2000-06-13 Tennant Company Sweeping machine with movable recirculation flap
FR2830550A1 (fr) * 2001-10-05 2003-04-11 Cochet Sa Balayeuse adaptable a un engin automoteur
WO2016166616A1 (en) * 2015-04-16 2016-10-20 Nilfisk-Advance A/S Apparatus for collecting garbage and debris for a motor-sweeper
US10492655B2 (en) 2015-04-16 2019-12-03 Nilfisk A/S Apparatus for collecting garbage and debris for a motor-sweeper
US11174607B2 (en) 2015-04-16 2021-11-16 Nilfisk A/S Apparatus for collecting garbage and debris for a motor-sweeper

Also Published As

Publication number Publication date
DE69710030T2 (de) 2002-09-12
FR2755708B1 (fr) 1999-01-29
ES2169338T3 (es) 2002-07-01
EP0843046B1 (de) 2002-01-23
FR2755708A1 (fr) 1998-05-15
DE69710030D1 (de) 2002-03-14

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