EP3455410B1 - Wheeled machine, in particular for deposition of bulk materials on the soil - Google Patents

Wheeled machine, in particular for deposition of bulk materials on the soil Download PDF

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Publication number
EP3455410B1
EP3455410B1 EP17731194.1A EP17731194A EP3455410B1 EP 3455410 B1 EP3455410 B1 EP 3455410B1 EP 17731194 A EP17731194 A EP 17731194A EP 3455410 B1 EP3455410 B1 EP 3455410B1
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EP
European Patent Office
Prior art keywords
smoothing table
reservoir
wheels
ground
machine
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Active
Application number
EP17731194.1A
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German (de)
French (fr)
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EP3455410A1 (en
Inventor
Kevin Menard
Romain MENARD
Medhi MENARD
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RKM
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RKM
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Publication of EP3455410A1 publication Critical patent/EP3455410A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/4866—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
    • E01C19/4873—Apparatus designed for railless operation
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/2005—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders without driven loosening, discharging or spreading
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/206—Hand operated spreading devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for

Definitions

  • the invention relates to a rolling vehicle, in particular for depositing bulk materials on the ground, in the form of a bed.
  • a machine comprising a rolling chassis equipped with a storage and distribution tank for bulk materials and a smoothing table, the smoothing table having a leading edge disposed transversely to the direction of movement of the 'machine, that is to say along the width of the machine, and said tank being provided, in the lower part forming the bottom of the tank, an unloading opening disposed between the leading edge of the smoothing table and the wheels of the rolling chassis of the machine.
  • the machines or devices are generally coupled to a towing vehicle, making the whole complex and bulky.
  • the design of such devices or machines prevents following the soil profile, and circulating on a complex profile soil.
  • An object of the invention is to provide a machine whose design allows, using a single operator, to transport, spread and smooth very quickly and easily covering, while continuously following the soil profile for precise removal in accordance with the preparation of the ground.
  • Another object of the invention is to provide a machine whose design allows easy driving, without effort, and passage through areas with a narrow width traffic lane and complex profile.
  • the subject of the invention is a rolling machine, in particular for depositing bulk materials on the ground, in the form of a bed, said machine comprising a rolling chassis equipped with a material storage and distribution tank. in bulk and a smoothing table, the smoothing table having a leading edge arranged, transverse to the direction of movement of the machine, that is to say along the width of the machine and said tank being provided, in the lower part forming the bottom of the tank, with a discharge opening arranged between the leading edge of the smoothing table and the wheels of the rolling chassis of the machine, for the purpose of depositing a bed of material in bulk of controlled thickness, characterized in that the rolling chassis is tiltably mounted around the axis of rotation of the wheels by means of which it rests on the ground for the passage of said machine of a configuration known as working in which the smoothing table is in con contact with the ground in a so-called transport configuration in which the smoothing table is moved away from the ground, in that the wheels of the rolling chassis are driving wheels, and in that the tank and the smoothing
  • the pivoting mounting of the chassis carrying the tank and the smoothing table around the axis of rotation of the wheels of the chassis allows the use of the smoothing table as a means of bearing on the surface which has just been coated, while according to the soil profile.
  • the inclination adjustment of the smoothing table with the plane of the tank unloading opening according to this tilt allows the unloading opening not to constitute an obstacle during the advancement of the machine.
  • the adjustment in inclination of the smoothing table at least by pivoting the smoothing table about an axis, parallel to the plane of the smoothing table, and transverse, in particular orthogonal to the axis of rotation of the wheels, so as to form, between the plane of the smoothing table and the axis of rotation of the wheels, an acute angle on one side or the other of the machine according to the slope of the ground, makes it possible to maintain the horizontality of the smoothing table, in the absence of a flatness of the ground.
  • the height adjustment of the smoothing table and the unloading opening relative to the support plane on the ground of the chassis wheels allows a bed of desired thickness to be obtained.
  • the adjustment means configured for height and tilt adjustment of the smoothing table are at least partially common.
  • the adjustment means comprise two actuators with independent actuation each disposed between the chassis and the mobile assembly.
  • each actuator is a jack whose rod is fixed to the chassis and whose body is fixed by means of an arm to said movable assembly.
  • each cylinder extends orthogonally to the axis of rotation of the wheels.
  • each cylinder preferably extends substantially orthogonally, that is to say more or less 10 ° near the plane of the smoothing table.
  • one of the arms and said movable assembly are coupled to one another by a pivot link with an axis transverse to the axis of rotation of the wheels and parallel to the plane of the smoothing table and the other of the arms and said assembly are coupled to each other by a pivoting and sliding link, the sliding being able to take place in a direction parallel to the leading edge of the smoothing table.
  • the use, as actuators, of cylinders which can be controlled by the operator of the machine allows permanent adjustment, including while driving the machine.
  • the driver thus has the possibility of continuously adjusting the position of the smoothing table in real time and continuously, when he notices a problem.
  • the machine is equipped with a U-shaped handlebar, the branches of the U coupling the core of the U forming a handle to the jacks, and one of the branches of the U is coupled to one of the jacks of slidingly movable along said cylinder.
  • the sliding movement prevents twisting of the handlebars when controlling a variation in length of the cylinders with a length adjustment of the cylinders different from one cylinder to another.
  • the tank open from above is delimited by a transverse wall called front, a transverse wall called rear, and two longitudinal walls called lateral, the leading edge of the table extends at the base of the rear wall of the tank and the discharge opening is a closable opening. It is thus possible to fill the tank of the machine in a place remote from the surface to be coated with a bed of bulk materials.
  • the tank is compartmentalized by partitions extending parallel to the longitudinal axis of the machine taken in the direction movement of the machine
  • the means for closing the unloading opening comprise a series of hatches arranged side by side in the width direction of the machine, said hatches being mounted movable between a closed position of the unloading opening in which said hatches are separated from each other by a partition and an open position of the unloading opening in which said hatches at least partially protrude from said tank, at least one of the hatches being suitable to move between the closed position and the open position independently of the other doors and the machine is equipped with an end-of-travel stop for the doors in the open position, this end-of-travel stop being adjustable in position.
  • the presence of a plurality of hatches inside a compartmentalized tank makes it possible to reduce the working width and / or the delivery rate.
  • the reservoir comprises two flaps for adjusting the width of the bed of bulk materials to be deposited, each flap extending below the means for closing the discharge opening in the closed position of said opening. unloading, each flap being at its so-called upper edge coupled to a side wall of the tank by a pivot link of pivot axis parallel to the plane of the smoothing table for the passage of said flap from an applied position against said side wall at a position spaced from said side wall.
  • the subject of the invention is a self-propelled rolling machine 1 for depositing on the ground, in the form of a bed or layer, loose materials for covering roads, roads or other surfaces.
  • loose materials can be formed by asphalt, sand, gravel or the like.
  • This machine 1 is a self-propelled machine 1 comprising a chassis 2 equipped with two wheels 8 for supporting the ground. These wheels 8 are drive wheels driven in rotation about an axis XX '. To allow this motor drive to rotate the wheels, the machine is equipped with a hydrostatic bridge to which each wheel 8 is coupled by a half-shaft, this hydrostatic bridge incorporating a differential and being coupled to a heat engine. These motor means for driving the wheels in rotation will not be described in more detail, because they are well known to those versed in this art.
  • axle could have been made in one piece and not broken as in the example shown.
  • the machine also comprises a tank 3 for storing and distributing the bulk materials intended to form said coating, and a smoothing table 4, the storage tank 3 and the smoothing table 4 being mounted on the chassis 2.
  • the smoothing table 4 has a leading edge 5 arranged transversely to the direction of movement of the machine, that is to say along the width of the machine 1, and the tank 3 is provided, in the lower part forming the bottom 6 of the reservoir 3, with an unloading opening 7 disposed between the leading edge 5 of the smoothing table 4 and the wheels 8 of the chassis 2 rolling of the machine 1.
  • the tank 3 open from above is, like a hopper, delimited by a transverse wall 18 called front, a transverse wall 19 called rear and two longitudinal walls 20 said lateral.
  • the leading edge 5 of the smoothing table 4 extends at the base of the rear wall 19 of the tank 3 and the opening 7 for discharging the tank 3 is a closable opening.
  • the smoothing table 4 which can be formed by a simple sheet metal fixed to the tank, in particular to the rear wall 19 of the tank at its leading edge 5 has a width of between 0.60 to 1.20 m and a length between 30-40 cm to form a sufficiently large bearing surface.
  • the reservoir 3 is compartmentalized by partitions 21 extending parallel to the longitudinal axis of the machine 1 taken in the direction of movement of the machine.
  • the means 22 for closing the unloading opening 7 comprise a series of hatches 221 arranged side by side in the width direction of the machine. Said hatches 221 are mounted movable between a closed position of the discharge opening 7 in which said hatches extend at least partially inside the tank 3 and are separated from each other by a partition 21, and an open position of the unloading opening 7 in which said hatches 221 at least partially protrude from said tank 3.
  • These doors 221 are hatches with curved profile, with concavity turned towards the bottom of the tank in the closed position. At least one of the doors is able to move between the closed position and the open position, independently of the other doors 221.
  • each hatch is associated with a jack arranged outside the tank and extending between the top of the smoothing table and the hatch.
  • This jack allows sliding movement of the associated hatch, between a closed position and an open position of the opening of tank unloading. It is thus possible to open some or all of the hatches, depending on the desired working width.
  • the machine can be equipped with an end stop 23 for the doors 221 in the open position.
  • This end of travel stop 23 is adjustable in position.
  • the end-of-travel stop 23 is formed by a rod arranged outside the tank and positionable, in the active position, on the path followed by the hatches 221 when passing from the closed position to the position open hatches 221.
  • This rod which extends along the width of the machine, is thus housed at each of its ends in a flange projecting from the top of the smoothing table.
  • These flanges extend opposite one another and are each provided with a notch equipped with notches for positioning the end of the rod, for maintaining the rod in the active position, that is to say - say on the path followed by the hatches, or in the inactive position, that is to say outside the path followed by the hatches.
  • the reservoir 3 comprises two flaps 24 for adjusting the width of the bed of bulk materials to be deposited.
  • Each flap 24 extending below the means 22 for closing the discharge opening 7 in the closed position of said discharge opening 7.
  • Each flap 24 is, at its so-called upper edge, coupled to a lateral wall 20 of the reservoir 3 by a pivot link of pivot axis parallel to the plane of the smoothing table 4 for the passage of said flap 24 from a position applied against said side wall 20 at a position spaced from said side wall 20.
  • the adjustment in position of each flap takes place here manually using a pivoting lever external to the tank and in engagement with the pivot axis of the flap. This pivoting lever is able to occupy several angular positions depending on the desired position for the shutter.
  • the chassis 2 therefore comprises a support structure for the reservoir 3 and the smoothing table 4.
  • This support structure at least partially surrounds the drive means for driving the wheels 8, by means of which the chassis 2 rests on the ground.
  • the chassis 2 pre-equipped with the tank 3 and the smoothing table 4 is therefore, with the tank 3 and the smoothing table 4, pivotally mounted around the axis XX 'of rotation of the wheels 8 by means of which it rests on the ground, for the passage of said machine from a configuration known as working in which the smoothing table 4 is in bearing contact with the ground to a configuration called transport in which the smoothing table 4 is removed from the ground .
  • the transport configuration is illustrated in figure 8 .
  • the machine can have a position in accordance with the figure 7 , with the smoothing table 4 resting on the already coated surface, this coating not being shown in the figure 7 .
  • the machine 1 is equipped with a handlebar 15 in a U on which the driver can rest to control the tilting of the chassis, in particular for the passage in configuration of transport of the machine.
  • the tank tends to switch naturally to the working configuration when the driver releases his support force on the handlebars and has returned the handlebars to a position in which the plane of the table extends horizontally.
  • the reservoir 3 and the smoothing table 4 form an assembly mounted in an adjustable manner in position on the chassis 2.
  • adjustment means 91, 92 are provided between the reservoir 3 and the chassis 2.
  • These means 91, 92 adjustment are provided to allow a displacement, integral in displacement, of the reservoir 3 and the smoothing table 4.
  • These adjustment means comprise two actuators, in this case two cylinders 91, 92 with independent actuation, each arranged between the chassis 2 and the reservoir 3.
  • each cylinder 91, 92 which is a double-acting hydraulic cylinder, is coupled by its rod 11 to the chassis, in particular to the part of the chassis surrounding a half-shaft connecting a wheel to the hydrostatic block.
  • one of the jacks extends at the level of one of the half-shafts and the other jack at the level of the other half-shafts.
  • the body of each cylinder is fixed by means of an arm 12 to the transverse wall 18 called front of the reservoir 3.
  • one of the arms 12 and the front transverse wall 18 of the reservoir 3 are coupled to one another by a pivot connection 13 with an axis transverse to the axis XX 'of rotation of the wheels 8 and parallel to the plane of the smoothing table.
  • the arm 12 is equipped at its free end with a circular plate which is housed in rotation inside a housing formed, of complementary shape, on the external face of the front transverse wall 18 of the reservoir 3.
  • the other of the arms 12 and the front transverse wall 18 of the reservoir are coupled to each other by a pivoting and sliding link 14, the sliding being able to take place in a direction parallel to the edge 5 of smoothing table 4 attack.
  • the front transverse wall 18 of the tank 3 is equipped with two parallel rails forming a slide arranged in the width direction of the machine, and the arm is equipped with a circular plate coming to be inserted between the parallel rails. of this slide.
  • the displacement movement of the cylinder bodies 10 in the direction of a elongation of the cylinders causes an elevation of the smoothing table 4 and of the associated reservoir 3, to allow height adjustment, function of the thickness of the layer of bulk material to be deposited.
  • the jacks 91, 92 allow an upward or downward movement of said assembly 3, 4 in the direction of a bringing together or a separation of the ground.
  • jacks 91, 92 which can be actuated independently of one another, also make it possible to vary the angle ⁇ formed between the plane of the smoothing table 4 and the axis XX 'of rotation of the wheels.
  • the elongation of the jack 92 causes the table to pivot around the axis YY 'horizontal orthogonal to the axis XX' of rotation of the wheels, this axis YY 'corresponding to the pivot axis of the pivot link 14 of the arm 12 of the jack 91 with the reservoir 3.
  • This pivoting movement causes the smoothing table 4 to tilt in the direction of the width of the machine, that is to say with a slope of the table s' extending from a high point formed by one of the longitudinal edges of the smoothing table 4 and a low point formed by the other longitudinal edge of the smoothing table 4.
  • This adjustment of the inclination of the smoothing table 4 thus allows the machine to manage a situation in accordance with the figure 5 , in which the wheel 8 located on the side of the jack 92 rests on the surface to be coated, while the wheel 8 located on the side of the jack 91 rests on an already coated surface therefore located at a higher level.
  • the plane of the smoothing table 4 remains horizontal, due to the acute angle ⁇ formed between the axis of rotation of the wheels and the support plane of the table.
  • the branches of the U of the handlebar 15 couple the core 17 of the U forming a handle to the cylinders 91, 92.
  • One of the arms 16 of the U is coupled to one of the cylinders 92 so that it can slide along said cylinder 92 in order to avoid any deformation of the handlebar during elongation or retraction of the cylinders.
  • the procedure is therefore as follows: the hatches 221 being in the closed position of the unloading opening of the tank 3, said tank 3 is filled from above.
  • the contents of the dump body of a truck can for example be poured directly from above into said tank 3.
  • the machine in transport configuration , is brought by its conductor to the location of the surface to be coated.
  • the driver of the machine uses a wedge, or prepares in the starting area of the surface to be coated, a thickness base corresponding to the thickness of the layer to be deposited.
  • the operator of the machine adjusts the height and inclination of the table and the associated tank by acting on the rods of the jacks, controlled in re-entry or exit from control members placed at the handlebars of the machine, so that the smoothing table 4 rests, after adjustment, horizontally on the prepared shim or base, while the wheels 8 of the machine rest on the surface to be coated, whether this surface is flat or not .
  • the machine is then in working configuration.
  • the hatches 211 are open, to allow an emptying of the tank of the machine and the deposit of the bulk materials contained inside the machine on the ground.
  • the machine moves with the handlebars forming the front of the machine, and the smoothing table 4 the rear of the machine as illustrated by arrow D at the figure 7 .
  • the tank unloading opening is arranged in front of the smoothing table 4 and the wheels in front of the tank unloading opening.
  • the hold or base is therefore behind the machine.
  • the machine is piloted in direction by the driver of the machine acting on the handlebar.
  • the wheels first run on the surface to be coated.
  • Bulk materials fall by gravity to the ground, i.e. onto the surface to be coated.
  • these loose bulk materials are smoothed or leveled by the smoothing table 4 which constantly rests on the surface which has just been coated.
  • the machine can also be used with an opposite direction of movement, that is to say with the smoothing table forming the front of the contraption.
  • the hatch opening is clamped to a given value and the machine is used with this direction of movement to carry out such graveling.

Description

L'invention concerne un engin roulant, notamment pour la dépose au sol, sous forme d'un lit, de matériaux en vrac.The invention relates to a rolling vehicle, in particular for depositing bulk materials on the ground, in the form of a bed.

Elle concerne plus particulièrement un engin comprenant un châssis roulant équipé d'un réservoir de stockage et de distribution des matériaux en vrac et d'une table de lissage, la table de lissage présentant un bord d'attaque disposé transversalement au sens de déplacement de l'engin, c'est-à-dire suivant la largeur de l'engin, et ledit réservoir étant muni, en partie inférieure formant fond du réservoir, d'une ouverture de déchargement disposée entre le bord d'attaque de la table de lissage et les roues du châssis roulant de l'engin.It relates more particularly to a machine comprising a rolling chassis equipped with a storage and distribution tank for bulk materials and a smoothing table, the smoothing table having a leading edge disposed transversely to the direction of movement of the 'machine, that is to say along the width of the machine, and said tank being provided, in the lower part forming the bottom of the tank, an unloading opening disposed between the leading edge of the smoothing table and the wheels of the rolling chassis of the machine.

ÉTAT DE LA TECHNIQUESTATE OF THE ART

De nombreuses machines ou dispositifs pour étaler et lisser sur le sol tout type de revêtement, notamment des matériaux routiers granuleux et/ou pulvérulents, de l'asphalte ou autres, ont été développés, comme l'illustre par exemple la demande internationale WO 00/61870 .Numerous machines or devices for spreading and smoothing on the ground any type of coating, in particular granular and / or powdery road materials, asphalt or the like, have been developed, as illustrated for example by international demand. WO 00/61870 .

Les machines ou dispositifs sont généralement attelés à un véhicule tracteur, rendant l'ensemble complexe et encombrant. En outre, la conception de tels dispositifs ou machines empêche de suivre le profil du sol, et de circuler sur un sol à profil complexe.The machines or devices are generally coupled to a towing vehicle, making the whole complex and bulky. In addition, the design of such devices or machines prevents following the soil profile, and circulating on a complex profile soil.

BUTS ET RÉSUMÉGOALS AND SUMMARY

Un but de l'invention est de proposer un engin dont la conception permet, à l'aide d'un seul opérateur, de transporter, d'étaler et lisser très rapidement et facilement un revêtement, tout en suivant de manière continue le profil du sol pour une dépose précise conforme à la préparation du terrain.An object of the invention is to provide a machine whose design allows, using a single operator, to transport, spread and smooth very quickly and easily covering, while continuously following the soil profile for precise removal in accordance with the preparation of the ground.

Un autre but de l'invention est de proposer un engin dont la conception permet une conduite aisée, sans effort, et un passage dans des zones à voie de circulation de faible largeur et de profil complexe.Another object of the invention is to provide a machine whose design allows easy driving, without effort, and passage through areas with a narrow width traffic lane and complex profile.

À cet effet, l'invention a pour objet un engin roulant notamment pour la dépose au sol, sous forme d'un lit, de matériaux en vrac, ledit engin comprenant un châssis roulant équipé d'un réservoir de stockage et de distribution des matériaux en vrac et d'une table de lissage, la table de lissage présentant un bord d'attaque disposé, transversalement au sens de déplacement de l'engin, c'est-à-dire suivant la largeur de l'engin et ledit réservoir étant muni, en partie inférieure formant fond du réservoir, d'une ouverture de déchargement disposée entre le bord d'attaque de la table de lissage et les roues du châssis roulant de l'engin, en vue de la dépose d'un lit de matériau en vrac d'épaisseur contrôlée, caractérisé en ce que le châssis roulant est monté à basculement autour de l'axe de rotation des roues par l'intermédiaire desquelles il repose au sol pour le passage dudit engin d'une configuration dite de travail dans laquelle la table de lissage est en contact d'appui avec le sol à une configuration dite de transport dans laquelle la table de lissage est écartée du sol, en ce que les roues du châssis roulant sont des roues motrices, et en ce que le réservoir et la table de lissage forment un ensemble mobile réglable en position par l'intermédiaire de moyens de réglage configurés pour permettre, au moins dans la position dans laquelle les roues du châssis roulant reposent sur un sol plan horizontal et la table de lissage s'étend parallèlement au sol, à écartement du sol, d'une part, un réglage en hauteur de la table de lissage et de l'ouverture de déchargement par déplacement en monte ou baisse dudit ensemble dans le sens d'un écartement ou d'un rapprochement du sol, d'autre part, un réglage en inclinaison de la table de lissage de manière à former un angle non nul entre le plan de la table de lissage et l'axe de rotation des roues.To this end, the subject of the invention is a rolling machine, in particular for depositing bulk materials on the ground, in the form of a bed, said machine comprising a rolling chassis equipped with a material storage and distribution tank. in bulk and a smoothing table, the smoothing table having a leading edge arranged, transverse to the direction of movement of the machine, that is to say along the width of the machine and said tank being provided, in the lower part forming the bottom of the tank, with a discharge opening arranged between the leading edge of the smoothing table and the wheels of the rolling chassis of the machine, for the purpose of depositing a bed of material in bulk of controlled thickness, characterized in that the rolling chassis is tiltably mounted around the axis of rotation of the wheels by means of which it rests on the ground for the passage of said machine of a configuration known as working in which the smoothing table is in con contact with the ground in a so-called transport configuration in which the smoothing table is moved away from the ground, in that the wheels of the rolling chassis are driving wheels, and in that the tank and the smoothing table form a movable assembly adjustable in position by means of adjustment configured to allow, at least in the position in which the wheels of the rolling chassis rest on a horizontal plane floor and the smoothing table extends parallel to the ground, at a distance from the ground, on the one hand, an adjustment in height of the smoothing table and the unloading opening by moving up or down of said assembly in the direction of a spacing or a bringing together of the ground, on the other hand , an adjustment in inclination of the smoothing table so as to form a non-zero angle between the plane of the smoothing table and the axis of rotation of the wheels.

Le montage à pivotement du châssis portant le réservoir et la table de lissage autour de l'axe de rotation des roues du châssis permet l'utilisation de la table de lissage comme moyen d'appui sur la surface venant d'être revêtue, tout en suivant le profil du sol.The pivoting mounting of the chassis carrying the tank and the smoothing table around the axis of rotation of the wheels of the chassis allows the use of the smoothing table as a means of bearing on the surface which has just been coated, while according to the soil profile.

Le réglage en inclinaison de la table de lissage avec le plan de l'ouverture de déchargement du réservoir suivant cette inclinaison permet à l'ouverture de déchargement de ne pas constituer un obstacle lors de l'avancement de l'engin. Le réglage en inclinaison de la table de lissage, au moins par pivotement de la table de lissage autour d'un axe, parallèle au plan de la table de lissage, et transversal, en particulier orthogonal à l'axe de rotation des roues, de manière à former, entre le plan de la table de lissage et l'axe de rotation des roues, un angle aigu d'un côté ou de l'autre de l'engin suivant la déclivité du sol, permet de maintenir l'horizontalité de la table de lissage, en l'absence d'une planéité du sol. Le réglage en hauteur de la table de lissage et de l'ouverture de déchargement par rapport au plan d'appui au sol des roues du châssis permet l'obtention d'un lit d'épaisseur souhaitée.The inclination adjustment of the smoothing table with the plane of the tank unloading opening according to this tilt allows the unloading opening not to constitute an obstacle during the advancement of the machine. The adjustment in inclination of the smoothing table, at least by pivoting the smoothing table about an axis, parallel to the plane of the smoothing table, and transverse, in particular orthogonal to the axis of rotation of the wheels, so as to form, between the plane of the smoothing table and the axis of rotation of the wheels, an acute angle on one side or the other of the machine according to the slope of the ground, makes it possible to maintain the horizontality of the smoothing table, in the absence of a flatness of the ground. The height adjustment of the smoothing table and the unloading opening relative to the support plane on the ground of the chassis wheels allows a bed of desired thickness to be obtained.

Selon un mode de réalisation, les moyens de réglage configurés pour un réglage en hauteur et en inclinaison de la table de lissage sont au moins partiellement communs.According to one embodiment, the adjustment means configured for height and tilt adjustment of the smoothing table are at least partially common.

Selon un mode de réalisation, les moyens de réglage comprennent deux actionneurs à actionnement indépendant disposés chacun entre le châssis et l'ensemble mobile.According to one embodiment, the adjustment means comprise two actuators with independent actuation each disposed between the chassis and the mobile assembly.

Selon un mode de réalisation, chaque actionneur est un vérin dont la tige est fixée au châssis et dont le corps est fixé par l'intermédiaire d'un bras audit ensemble mobile.According to one embodiment, each actuator is a jack whose rod is fixed to the chassis and whose body is fixed by means of an arm to said movable assembly.

Selon un mode de réalisation, l'axe longitudinal de chaque vérin s'étend orthogonalement à l'axe de rotation des roues.According to one embodiment, the longitudinal axis of each cylinder extends orthogonally to the axis of rotation of the wheels.

Cet axe longitudinal de chaque vérin s'étend, de préférence, sensiblement orthogonalement, c'est-à-dire à plus ou moins 10° près, au plan de la table de lissage.This longitudinal axis of each cylinder preferably extends substantially orthogonally, that is to say more or less 10 ° near the plane of the smoothing table.

Selon un mode de réalisation, l'un des bras et ledit ensemble mobile sont couplés l'un à l'autre par une liaison pivot d'axe transversal à l'axe de rotation des roues et parallèle au plan de la table de lissage et l'autre des bras et ledit ensemble sont couplés l'un à l'autre par une liaison à pivotement et à coulissement, le coulissement étant apte à s'opérer suivant une direction parallèle au bord d'attaque de la table de lissage.According to one embodiment, one of the arms and said movable assembly are coupled to one another by a pivot link with an axis transverse to the axis of rotation of the wheels and parallel to the plane of the smoothing table and the other of the arms and said assembly are coupled to each other by a pivoting and sliding link, the sliding being able to take place in a direction parallel to the leading edge of the smoothing table.

L'utilisation, en tant qu'actionneurs, de vérins pouvant être pilotés par le conducteur de l'engin permet un réglage permanent, y compris pendant la conduite de l'engin. Le conducteur a ainsi la possibilité de procéder en temps réel et en continu à un réglage de la position de la table de lissage, lorsqu'il constate un problème.The use, as actuators, of cylinders which can be controlled by the operator of the machine allows permanent adjustment, including while driving the machine. The driver thus has the possibility of continuously adjusting the position of the smoothing table in real time and continuously, when he notices a problem.

Selon un mode de réalisation, l'engin est équipé d'un guidon en U, les branches du U couplant l'âme du U formant poignée aux vérins, et l'une des branches du U est couplée à l'un des vérins de manière déplaçable à coulissement le long dudit vérin. Le déplacement à coulissement évite une torsion du guidon lors de la commande d'une variation de longueur des vérins avec un réglage en longueur des vérins différencié d'un vérin à l'autre.According to one embodiment, the machine is equipped with a U-shaped handlebar, the branches of the U coupling the core of the U forming a handle to the jacks, and one of the branches of the U is coupled to one of the jacks of slidingly movable along said cylinder. The sliding movement prevents twisting of the handlebars when controlling a variation in length of the cylinders with a length adjustment of the cylinders different from one cylinder to another.

Selon un mode de réalisation, le réservoir ouvert par le dessus est délimité par une paroi transversale dite avant, une paroi transversale dite arrière, et deux parois longitudinales dites latérales, le bord d'attaque de la table s'étend à la base de la paroi arrière du réservoir et l'ouverture de déchargement est une ouverture obturable. Il est ainsi possible de remplir le réservoir de l'engin en un lieu éloigné de la surface à revêtir d'un lit de matériaux en vrac.According to one embodiment, the tank open from above is delimited by a transverse wall called front, a transverse wall called rear, and two longitudinal walls called lateral, the leading edge of the table extends at the base of the rear wall of the tank and the discharge opening is a closable opening. It is thus possible to fill the tank of the machine in a place remote from the surface to be coated with a bed of bulk materials.

Selon un mode de réalisation, le réservoir est compartimenté par des cloisons s'étendant parallèlement à l'axe longitudinal de l'engin pris suivant la direction de déplacement de l'engin, les moyens d'obturation de l'ouverture de déchargement comprennent une série de trappes disposées côte à côte dans le sens de la largeur de l'engin, lesdites trappes étant montées mobiles entre une position fermée de l'ouverture de déchargement dans laquelle lesdites trappes sont séparées l'une de l'autre par une cloison et une position ouverte de l'ouverture de déchargement dans laquelle lesdites trappes font au moins partiellement saillie dudit réservoir, au moins l'une des trappes étant apte à se déplacer entre la position fermée et la position ouverte indépendamment des autres trappes et l'engin est équipé d'une butée de fin de course des trappes en position ouverte, cette butée de fin de course étant réglable en position. La présence d'une pluralité de trappes à l'intérieur d'un réservoir compartimenté permet de réduire la largeur de travail et/ou le débit de distribution.According to one embodiment, the tank is compartmentalized by partitions extending parallel to the longitudinal axis of the machine taken in the direction movement of the machine, the means for closing the unloading opening comprise a series of hatches arranged side by side in the width direction of the machine, said hatches being mounted movable between a closed position of the unloading opening in which said hatches are separated from each other by a partition and an open position of the unloading opening in which said hatches at least partially protrude from said tank, at least one of the hatches being suitable to move between the closed position and the open position independently of the other doors and the machine is equipped with an end-of-travel stop for the doors in the open position, this end-of-travel stop being adjustable in position. The presence of a plurality of hatches inside a compartmentalized tank makes it possible to reduce the working width and / or the delivery rate.

Selon un mode de réalisation, le réservoir comprend deux volets de réglage de la largeur du lit de matériaux en vrac à déposer, chaque volet s'étendant au-dessous des moyens d'obturation de l'ouverture de déchargement en position fermée de ladite ouverture de déchargement, chaque volet étant au niveau de son bord dit supérieur couplé à une paroi latérale du réservoir par une liaison pivot d'axe de pivotement parallèle au plan de la table de lissage pour le passage dudit volet d'une position en applique contre ladite paroi latérale à une position écartée de ladite paroi latérale. Ces volets participent donc également au réglage de la largeur de travail.According to one embodiment, the reservoir comprises two flaps for adjusting the width of the bed of bulk materials to be deposited, each flap extending below the means for closing the discharge opening in the closed position of said opening. unloading, each flap being at its so-called upper edge coupled to a side wall of the tank by a pivot link of pivot axis parallel to the plane of the smoothing table for the passage of said flap from an applied position against said side wall at a position spaced from said side wall. These components therefore also participate in the adjustment of the working width.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention sera bien comprise à la lecture de la description suivante d'exemples de réalisation, en référence aux dessins annexés dans lesquels :

  • La figure 1 représente une vue en perspective, prise côté table de lissage, d'un engin conforme à l'invention.
  • La figure 2 représente une vue en perspective, prise côté guidon, d'un engin conforme à l'invention.
  • La figure 3 représente une vue en position éclatée des éléments le constituant d'un engin conforme à l'invention.
  • La figure 4 représente une vue prise côté guidon de l'engin reposant sur un sol plan.
  • La figure 5 représente une vue, prise côté guidon, de l'engin reposant sur un sol incliné, au cours du revêtement, avec la roue de gauche de l'engin reposant sur une surface déjà revêtue et la roue de droite de l'engin reposant sur une surface en cours de revêtement, non encore revêtue et avec une vue de détail de la liaison d'un actionneur au réservoir.
  • La figure 6 représente une vue, prise côté guidon, de l'engin reposant sur un sol incliné, en cours de revêtement, avec la roue de droite de l'engin reposant sur une surface déjà revêtue et la roue de gauche de l'engin reposant sur une surface en cours de revêtement, non encore revêtue.
  • Les figures 7 et 8 représentent des vues schématiques de côté de l'engin, pour illustrer le basculement du châssis autour de l'axe de rotation des roues.
  • La figure 9 représente une vue en élévation de l'engin, avec deux trappes en position ouverte.
  • La figure 10 représente une vue de détail d'un volet de réglage.
  • La figure 11 représente une vue partielle du réservoir et de la butée de fin de course des trappes équipant le réservoir en position d'ouverture minimale des trappes, la butée de fin de course étant active.
  • La figure 12 représente une vue partielle du réservoir et de la butée de fin de course des trappes équipant le réservoir en position d'ouverture des trappes, la butée de fin de course étant inactive.
The invention will be clearly understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:
  • The figure 1 shows a perspective view, taken on the smoothing table side, of a machine according to the invention.
  • The figure 2 shows a perspective view, taken on the handlebar side, of a machine according to the invention.
  • The figure 3 shows an exploded position view of the components of a machine according to the invention.
  • The figure 4 represents a view taken on the handlebar side of the machine resting on level ground.
  • The figure 5 represents a view, taken on the handlebar side, of the machine resting on an inclined ground, during the coating, with the left wheel of the machine resting on an already coated surface and the right wheel of the machine resting on a surface being coated, not yet coated and with a detailed view of the connection of an actuator to the reservoir.
  • The figure 6 represents a view, taken on the handlebar side, of the machine resting on an inclined ground, during coating, with the right wheel of the machine resting on an already coated surface and the left wheel of the machine resting on a surface being coated, not yet coated.
  • The Figures 7 and 8 represent schematic side views of the machine, to illustrate the tilting of the chassis around the axis of rotation of the wheels.
  • The figure 9 shows an elevational view of the machine, with two doors in the open position.
  • The figure 10 shows a detailed view of an adjustment flap.
  • The figure 11 shows a partial view of the tank and the end stop of the hatches fitted to the tank in the minimum open position of the doors, the end stop being active.
  • The figure 12 represents a partial view of the tank and the end stop of stroke of the hatches fitted to the tank in the hatch open position, the limit stop being inactive.

Comme mentionné ci-dessus, l'invention a pour objet un engin 1 roulant automoteur pour la dépose au sol, sous forme d'un lit ou couche, de matériaux en vrac de revêtement pour routes, chaussées ou autres surfaces. Ces matériaux en vrac peuvent être formés par de l'asphalte, du sable, des gravillons ou autres.As mentioned above, the subject of the invention is a self-propelled rolling machine 1 for depositing on the ground, in the form of a bed or layer, loose materials for covering roads, roads or other surfaces. These loose materials can be formed by asphalt, sand, gravel or the like.

Cet engin 1 est un engin 1 automoteur comprenant un châssis 2 équipé de deux roues 8 d'appui au sol. Ces roues 8 sont des roues motrices entraînées à rotation autour d'un axe XX'. Pour permettre cet entraînement moteur en rotation des roues, l'engin est équipé d'un pont hydrostatique auquel chaque roue 8 est couplée par un demi-arbre, ce pont hydrostatique intégrant un différentiel et étant couplé à un moteur thermique. Ces moyens moteurs d'entraînement en rotation des roues ne seront pas décrits plus en détail, car ils sont bien connus à ceux versés dans cet art.This machine 1 is a self-propelled machine 1 comprising a chassis 2 equipped with two wheels 8 for supporting the ground. These wheels 8 are drive wheels driven in rotation about an axis XX '. To allow this motor drive to rotate the wheels, the machine is equipped with a hydrostatic bridge to which each wheel 8 is coupled by a half-shaft, this hydrostatic bridge incorporating a differential and being coupled to a heat engine. These motor means for driving the wheels in rotation will not be described in more detail, because they are well known to those versed in this art.

D'autres moyens moteurs d'entraînement en rotation des roues, tels qu'un moteur électrique alimenté par une batterie, auraient pu être envisagés sans sortir du cadre de l'invention. En particulier, l'essieu aurait pu être réalisé d'un seul tenant et non brisé comme dans l'exemple représenté.Other motor means for driving the wheels in rotation, such as an electric motor powered by a battery, could have been envisaged without departing from the scope of the invention. In particular, the axle could have been made in one piece and not broken as in the example shown.

L'engin comprend encore un réservoir 3 de stockage et de distribution des matériaux en vrac destinés à former ledit revêtement, et une table 4 de lissage, le réservoir 3 de stockage et la table 4 de lissage étant montés sur le châssis 2.The machine also comprises a tank 3 for storing and distributing the bulk materials intended to form said coating, and a smoothing table 4, the storage tank 3 and the smoothing table 4 being mounted on the chassis 2.

Dans l'exemple représenté, la table 4 de lissage présente un bord 5 d'attaque disposé transversalement au sens de déplacement de l'engin, c'est-à-dire suivant la largeur de l'engin 1, et le réservoir 3 est muni, en partie inférieure formant fond 6 du réservoir 3, d'une ouverture 7 de déchargement disposée entre le bord 5 d'attaque de la table 4 de lissage et les roues 8 du châssis 2 roulant de l'engin 1. En particulier, le réservoir 3 ouvert par le dessus est, à la manière d'une trémie, délimité par une paroi 18 transversale dite avant, une paroi 19 transversale dite arrière et deux parois 20 longitudinales dites latérales. Le bord 5 d'attaque de la table 4 de lissage s'étend à la base de la paroi 19 arrière du réservoir 3 et l'ouverture 7 de déchargement du réservoir 3 est une ouverture obturable.In the example shown, the smoothing table 4 has a leading edge 5 arranged transversely to the direction of movement of the machine, that is to say along the width of the machine 1, and the tank 3 is provided, in the lower part forming the bottom 6 of the reservoir 3, with an unloading opening 7 disposed between the leading edge 5 of the smoothing table 4 and the wheels 8 of the chassis 2 rolling of the machine 1. In particular, the tank 3 open from above is, like a hopper, delimited by a transverse wall 18 called front, a transverse wall 19 called rear and two longitudinal walls 20 said lateral. The leading edge 5 of the smoothing table 4 extends at the base of the rear wall 19 of the tank 3 and the opening 7 for discharging the tank 3 is a closable opening.

Généralement, la table 4 de lissage, qui peut être formée par une simple tôle fixée au réservoir, en particulier à la paroi 19 arrière du réservoir au niveau de son bord 5 d'attaque présente une largeur comprise entre 0,60 à 1,20 m et une longueur comprise entre 30-40 cm pour former une surface d'appui suffisamment importante.Generally, the smoothing table 4, which can be formed by a simple sheet metal fixed to the tank, in particular to the rear wall 19 of the tank at its leading edge 5 has a width of between 0.60 to 1.20 m and a length between 30-40 cm to form a sufficiently large bearing surface.

Dans l'exemple représenté, le réservoir 3 est compartimenté par des cloisons 21 s'étendant parallèlement à l'axe longitudinal de l'engin 1 pris suivant la direction de déplacement de l'engin. Les moyens 22 d'obturation de l'ouverture 7 de déchargement comprennent une série de trappes 221 disposées côte à côte dans le sens de la largeur de l'engin. Lesdites trappes 221 sont montées mobiles entre une position fermée de l'ouverture 7 de déchargement dans laquelle lesdites trappes s'étendent au moins partiellement à l'intérieur du réservoir 3 et sont séparées l'une de l'autre par une cloison 21, et une position ouverte de l'ouverture 7 de déchargement dans laquelle lesdites trappes 221 font au moins partiellement saillie dudit réservoir 3. Ces trappes 221 sont des trappes à profil courbe, à concavité tournée vers le fond du réservoir en position fermée. Au moins l'une des trappes est apte à se déplacer entre la position fermée et la position ouverte, indépendamment des autres trappes 221.In the example shown, the reservoir 3 is compartmentalized by partitions 21 extending parallel to the longitudinal axis of the machine 1 taken in the direction of movement of the machine. The means 22 for closing the unloading opening 7 comprise a series of hatches 221 arranged side by side in the width direction of the machine. Said hatches 221 are mounted movable between a closed position of the discharge opening 7 in which said hatches extend at least partially inside the tank 3 and are separated from each other by a partition 21, and an open position of the unloading opening 7 in which said hatches 221 at least partially protrude from said tank 3. These doors 221 are hatches with curved profile, with concavity turned towards the bottom of the tank in the closed position. At least one of the doors is able to move between the closed position and the open position, independently of the other doors 221.

Dans l'exemple représenté, chaque trappe est associée à un vérin disposé à l'extérieur du réservoir et s'étendant entre le dessus de la table de lissage et la trappe. Ce vérin permet un déplacement à coulissement de la trappe associée, entre une position fermée et une position ouverte de l'ouverture de déchargement du réservoir. Il est ainsi possible d'ouvrir certaines ou toutes les trappes, selon la largeur de travail souhaitée.In the example shown, each hatch is associated with a jack arranged outside the tank and extending between the top of the smoothing table and the hatch. This jack allows sliding movement of the associated hatch, between a closed position and an open position of the opening of tank unloading. It is thus possible to open some or all of the hatches, depending on the desired working width.

Pour varier le degré d'ouverture des trappes, et par suite le débit de distribution, l'engin peut être équipé d'une butée 23 de fin de course des trappes 221 en position ouverte. Cette butée 23 de fin de course est réglable en position.To vary the degree of opening of the doors, and consequently the distribution rate, the machine can be equipped with an end stop 23 for the doors 221 in the open position. This end of travel stop 23 is adjustable in position.

Dans l'exemple représenté, la butée 23 de fin de course est formée par une tringle disposée à l'extérieur du réservoir et positionnable, en position active, sur la trajectoire suivie par les trappes 221 lors du passage de la position fermée à la position ouverte des trappes 221. Cette tringle, qui s'étend le long de la largeur de l'engin, est ainsi logée à chacune de ses extrémités dans un flasque s'étendant en saillie du dessus de la table de lissage. Ces flasques s'étendent en regard l'un de l'autre et sont munis chacun d'une encoche équipée de crans de positionnement de l'extrémité de la tringle, pour un maintien de la tringle en position active, c'est-à-dire sur la trajectoire suivie par les trappes, ou en position inactive, c'est-à-dire en dehors de la trajectoire suivie par les trappes.In the example shown, the end-of-travel stop 23 is formed by a rod arranged outside the tank and positionable, in the active position, on the path followed by the hatches 221 when passing from the closed position to the position open hatches 221. This rod, which extends along the width of the machine, is thus housed at each of its ends in a flange projecting from the top of the smoothing table. These flanges extend opposite one another and are each provided with a notch equipped with notches for positioning the end of the rod, for maintaining the rod in the active position, that is to say - say on the path followed by the hatches, or in the inactive position, that is to say outside the path followed by the hatches.

Pour parfaire cette possibilité de réglage de la largeur du lit, le réservoir 3 comprend deux volets 24 de réglage de la largeur du lit de matériaux en vrac à déposer. Chaque volet 24 s'étendant au-dessous des moyens 22 d'obturation de l'ouverture 7 de déchargement en position fermée de ladite ouverture 7 de déchargement. Chaque volet 24 est, au niveau de son bord dit supérieur, couplé à une paroi 20 latérale du réservoir 3 par une liaison pivot d'axe de pivotement parallèle au plan de la table 4 de lissage pour le passage dudit volet 24 d'une position en applique contre ladite paroi 20 latérale à une position écartée de ladite paroi 20 latérale. Le réglage en position de chaque volet s'opère ici manuellement à l'aide d'un levier pivotant extérieur au réservoir et en prise avec l'axe pivot du volet. Ce levier pivotant est apte à occuper plusieurs positions angulaires en fonction de la position souhaitée pour le volet.To perfect this possibility of adjusting the width of the bed, the reservoir 3 comprises two flaps 24 for adjusting the width of the bed of bulk materials to be deposited. Each flap 24 extending below the means 22 for closing the discharge opening 7 in the closed position of said discharge opening 7. Each flap 24 is, at its so-called upper edge, coupled to a lateral wall 20 of the reservoir 3 by a pivot link of pivot axis parallel to the plane of the smoothing table 4 for the passage of said flap 24 from a position applied against said side wall 20 at a position spaced from said side wall 20. The adjustment in position of each flap takes place here manually using a pivoting lever external to the tank and in engagement with the pivot axis of the flap. This pivoting lever is able to occupy several angular positions depending on the desired position for the shutter.

Le réservoir 3 ainsi réalisé et la table 4 de lissage forment un ensemble monté sur le châssis 2. Le châssis 2 comprend donc une structure support du réservoir 3 et de la table 4 de lissage. Cette structure support entoure au moins partiellement les moyens moteurs d'entraînement des roues 8, par l'intermédiaire desquelles le châssis 2 repose au sol. Le châssis 2 pré-équipé du réservoir 3 et de la table 4 de lissage est donc, avec le réservoir 3 et la table 4 de lissage, monté à basculement autour de l'axe XX' de rotation des roues 8 par l'intermédiaire desquels il repose au sol, pour le passage dudit engin d'une configuration dite de travail dans laquelle la table 4 de lissage est en contact d'appui avec le sol à une configuration dite de transport dans laquelle la table 4 de lissage est écartée du sol. La configuration transport est illustrée à la figure 8.The reservoir 3 thus produced and the smoothing table 4 form an assembly mounted on the chassis 2. The chassis 2 therefore comprises a support structure for the reservoir 3 and the smoothing table 4. This support structure at least partially surrounds the drive means for driving the wheels 8, by means of which the chassis 2 rests on the ground. The chassis 2 pre-equipped with the tank 3 and the smoothing table 4 is therefore, with the tank 3 and the smoothing table 4, pivotally mounted around the axis XX 'of rotation of the wheels 8 by means of which it rests on the ground, for the passage of said machine from a configuration known as working in which the smoothing table 4 is in bearing contact with the ground to a configuration called transport in which the smoothing table 4 is removed from the ground . The transport configuration is illustrated in figure 8 .

Dans la configuration travail, l'engin peut présenter une position conforme à la figure 7, avec la table 4 de lissage en appui sur la surface déjà revêtue, ce revêtement n'étant pas représenté à la figure 7.In the working configuration, the machine can have a position in accordance with the figure 7 , with the smoothing table 4 resting on the already coated surface, this coating not being shown in the figure 7 .

Pour permettre la commande en basculement, par le conducteur de l'engin 1, l'engin 1 est équipé d'un guidon 15 en U sur lequel le conducteur peut prendre appui pour commander le basculement du châssis, notamment pour le passage en configuration de transport de l'engin. Généralement, sous l'effet du poids de la table de lissage et du réservoir, le réservoir tend à basculer naturellement en configuration travail lorsque le conducteur relâche son effort d'appui sur le guidon et a ramené le guidon dans une position dans laquelle le plan de la table s'étend horizontalement.To allow tilting control, by the driver of the machine 1, the machine 1 is equipped with a handlebar 15 in a U on which the driver can rest to control the tilting of the chassis, in particular for the passage in configuration of transport of the machine. Generally, under the effect of the weight of the smoothing table and the tank, the tank tends to switch naturally to the working configuration when the driver releases his support force on the handlebars and has returned the handlebars to a position in which the plane of the table extends horizontally.

Le réservoir 3 et la table 4 de lissage forment un ensemble monté de manière réglable en position sur le châssis 2. À cet effet, des moyens 91, 92 de réglage sont prévus entre le réservoir 3 et le châssis 2. Ces moyens 91, 92 de réglage sont prévus pour permettre un déplacement, de manière solidaire en déplacement, du réservoir 3 et de la table 4 de lissage. Ces moyens de réglage comprennent deux actionneurs, en l'occurrence ici deux vérins 91, 92 à actionnement indépendant, disposés chacun entre le châssis 2 et le réservoir 3.The reservoir 3 and the smoothing table 4 form an assembly mounted in an adjustable manner in position on the chassis 2. For this purpose, adjustment means 91, 92 are provided between the reservoir 3 and the chassis 2. These means 91, 92 adjustment are provided to allow a displacement, integral in displacement, of the reservoir 3 and the smoothing table 4. These adjustment means comprise two actuators, in this case two cylinders 91, 92 with independent actuation, each arranged between the chassis 2 and the reservoir 3.

Ainsi, chaque vérin 91, 92, qui est un vérin hydraulique à double effet est couplé par sa tige 11 au châssis, en particulier à la partie du châssis entourant un demi-arbre de liaison d'une roue au bloc hydrostatique. Ainsi, l'un des vérins s'étend au niveau de l'un des demi-arbres et l'autre vérin au niveau de l'autre demi-arbre. Le corps de chaque vérin est quant à lui fixé par l'intermédiaire d'un bras 12 à la paroi 18 transversale dite avant du réservoir 3.Thus, each cylinder 91, 92, which is a double-acting hydraulic cylinder, is coupled by its rod 11 to the chassis, in particular to the part of the chassis surrounding a half-shaft connecting a wheel to the hydrostatic block. Thus, one of the jacks extends at the level of one of the half-shafts and the other jack at the level of the other half-shafts. The body of each cylinder is fixed by means of an arm 12 to the transverse wall 18 called front of the reservoir 3.

Dans l'exemple représenté, l'un des bras 12 et la paroi 18 transversale avant du réservoir 3 sont couplés l'un à l'autre par une liaison 13 pivot d'axe transversal à l'axe XX' de rotation des roues 8 et parallèle au plan de la table de lissage. Ainsi, le bras 12 est équipé à son extrémité libre d'une platine circulaire qui vient se loger à rotation à l'intérieur d'un logement ménagé, de forme complémentaire, sur la face externe de la paroi 18 transversale avant du réservoir 3. L'autre des bras 12 et la paroi 18 transversale avant du réservoir sont couplés l'un à l'autre par une liaison 14 à pivotement et à coulissement, le coulissement étant apte à s'opérer suivant une direction parallèle au bord 5 d'attaque de la table 4 de lissage.In the example shown, one of the arms 12 and the front transverse wall 18 of the reservoir 3 are coupled to one another by a pivot connection 13 with an axis transverse to the axis XX 'of rotation of the wheels 8 and parallel to the plane of the smoothing table. Thus, the arm 12 is equipped at its free end with a circular plate which is housed in rotation inside a housing formed, of complementary shape, on the external face of the front transverse wall 18 of the reservoir 3. The other of the arms 12 and the front transverse wall 18 of the reservoir are coupled to each other by a pivoting and sliding link 14, the sliding being able to take place in a direction parallel to the edge 5 of smoothing table 4 attack.

À cet effet, la paroi 18 transversale avant du réservoir 3 est équipée de deux rails parallèles formant glissière disposés dans le sens de la largeur de l'engin, et le bras est équipé d'une platine circulaire venant s'insérer entre les rails parallèles de cette glissière.To this end, the front transverse wall 18 of the tank 3 is equipped with two parallel rails forming a slide arranged in the width direction of the machine, and the arm is equipped with a circular plate coming to be inserted between the parallel rails. of this slide.

Grâce à ce montage dans la position représentée à la figure 7 dans laquelle les roues 8 du châssis 2 roulant reposent sur un sol 25 plan horizontal et la table 4 de lissage s'étend parallèlement au sol, à écartement du sol, l'entraînement en déplacement des corps 10 de vérin dans le sens d'un allongement des vérins entraîne une élévation de la table 4 de lissage et du réservoir 3 associé, pour permettre un réglage en hauteur, fonction de l'épaisseur de la couche de matériaux en vrac à déposer. Ainsi, les vérins 91, 92 permettent un déplacement en monte ou baisse dudit ensemble 3, 4 dans le sens d'un rapprochement ou d'un écartement du sol. Ces vérins 91, 92, qui peuvent être actionnés indépendamment l'un de l'autre, permettent encore de faire varier l'angle α formé entre le plan de la table 4 de lissage et l'axe XX' de rotation des roues. Ainsi, dans la position représentée à la figure 7 ou à la figure 4, l'allongement du vérin 92 entraîne un déplacement à pivotement de la table autour de l'axe YY' horizontal orthogonal à l'axe XX' de rotation des roues, cet axe YY' correspondant à l'axe pivot de la liaison 14 pivot du bras 12 du vérin 91 avec le réservoir 3. Ce déplacement à pivotement entraîne une inclinaison de la table 4 de lissage dans le sens de la largeur de l'engin, c'est-à-dire avec une pente de la table s'étendant depuis un point haut formé par l'un des bords longitudinaux de la table 4 de lissage et un point bas formé par l'autre bord longitudinal de la table 4 de lissage.Thanks to this mounting in the position shown in the figure 7 in which the wheels 8 of the rolling chassis 2 rest on a horizontal plane ground 25 and the smoothing table 4 extends parallel to the ground, at a distance from the ground, the displacement movement of the cylinder bodies 10 in the direction of a elongation of the cylinders causes an elevation of the smoothing table 4 and of the associated reservoir 3, to allow height adjustment, function of the thickness of the layer of bulk material to be deposited. Thus, the jacks 91, 92 allow an upward or downward movement of said assembly 3, 4 in the direction of a bringing together or a separation of the ground. These jacks 91, 92, which can be actuated independently of one another, also make it possible to vary the angle α formed between the plane of the smoothing table 4 and the axis XX 'of rotation of the wheels. Thus, in the position shown in the figure 7 or at the figure 4 , the elongation of the jack 92 causes the table to pivot around the axis YY 'horizontal orthogonal to the axis XX' of rotation of the wheels, this axis YY 'corresponding to the pivot axis of the pivot link 14 of the arm 12 of the jack 91 with the reservoir 3. This pivoting movement causes the smoothing table 4 to tilt in the direction of the width of the machine, that is to say with a slope of the table s' extending from a high point formed by one of the longitudinal edges of the smoothing table 4 and a low point formed by the other longitudinal edge of the smoothing table 4.

Ce réglage de l'inclinaison de la table 4 de lissage permet ainsi à l'engin de gérer une situation conforme à la figure 5, dans laquelle la roue 8 située côté du vérin 92 repose sur la surface à revêtir, alors que la roue 8 située côté du vérin 91 repose sur une surface déjà revêtue donc située à un niveau supérieur. Il en résulte la formation d'une marche entre lesdites surfaces. En dépit de la présence de cette marche, on constate que le plan de la table 4 de lissage demeure horizontal, en raison de l'angle α aigu formé entre l'axe de rotation des roues et le plan d'appui de la table.This adjustment of the inclination of the smoothing table 4 thus allows the machine to manage a situation in accordance with the figure 5 , in which the wheel 8 located on the side of the jack 92 rests on the surface to be coated, while the wheel 8 located on the side of the jack 91 rests on an already coated surface therefore located at a higher level. This results in the formation of a step between said surfaces. Despite the presence of this step, it can be seen that the plane of the smoothing table 4 remains horizontal, due to the acute angle α formed between the axis of rotation of the wheels and the support plane of the table.

Bien évidemment, dans le cas d'une situation où c'est la roue située du côté du vérin 91 qui doit reposer sur la surface à revêtir, on procède à une extension de la longueur du vérin 91. Il est donc possible, selon les vérins actionnés, d'obtenir un angle α aigu d'un côté ou de l'autre de l'engin. Il est ainsi possible de maintenir l'horizontalité de la table 4 de lissage en absence d'une planéité du sol.Obviously, in the case of a situation where it is the wheel located on the side of the jack 91 which must rest on the surface to be coated, the length of the jack 91 is extended. It is therefore possible, depending on the actuated cylinders, to obtain an acute angle α on one side or the other of the machine. It is thus possible to maintain the horizontality of the smoothing table 4 in the absence of a flatness of the ground.

Dans l'exemple représenté, les branches du U du guidon 15 couplent l'âme 17 du U formant poignée aux vérins 91, 92. L'une des branches 16 du U est couplée à l'un des vérins 92 de manière déplaçable à coulissement le long dudit vérin 92, pour éviter toute déformation du guidon au cours de l'allongement ou de la rétractation des vérins.In the example shown, the branches of the U of the handlebar 15 couple the core 17 of the U forming a handle to the cylinders 91, 92. One of the arms 16 of the U is coupled to one of the cylinders 92 so that it can slide along said cylinder 92 in order to avoid any deformation of the handlebar during elongation or retraction of the cylinders.

Pour permettre la dépose de matériaux en vrac au sol sous forme d'un lit à l'aide d'un engin tel que décrit ci-dessus, on procède donc comme suit : les trappes 221 étant en position fermée de l'ouverture de déchargement du réservoir 3, on remplit par le dessus ledit réservoir 3. Le contenu de la benne d'un camion peut par exemple être déversé directement par le dessus dans ledit réservoir 3. Une fois le réservoir 3 rempli, l'engin, en configuration transport, est amené par son conducteur sur l'emplacement de la surface à revêtir. Le conducteur de l'engin utilise une cale, ou prépare dans la zone de départ de la surface à revêtir, une base d'épaisseur correspondant à l'épaisseur de la couche devant être déposée. Le conducteur de l'engin procède aux réglages en hauteur et en inclinaison de la table et du réservoir associé en agissant sur les tiges des vérins, commandées en rentrée ou en sortie à partir d'organes de commande placés au niveau du guidon de l'engin, de sorte que la table 4 de lissage repose, après réglage, à l'horizontale sur la cale ou la base préparée, tandis que les roues 8 de l'engin reposent sur la surface à revêtir, que cette surface soit plane ou non.To allow the deposit of loose materials on the ground in the form of a bed using a machine as described above, the procedure is therefore as follows: the hatches 221 being in the closed position of the unloading opening of the tank 3, said tank 3 is filled from above. The contents of the dump body of a truck can for example be poured directly from above into said tank 3. Once the tank 3 is filled, the machine, in transport configuration , is brought by its conductor to the location of the surface to be coated. The driver of the machine uses a wedge, or prepares in the starting area of the surface to be coated, a thickness base corresponding to the thickness of the layer to be deposited. The operator of the machine adjusts the height and inclination of the table and the associated tank by acting on the rods of the jacks, controlled in re-entry or exit from control members placed at the handlebars of the machine, so that the smoothing table 4 rests, after adjustment, horizontally on the prepared shim or base, while the wheels 8 of the machine rest on the surface to be coated, whether this surface is flat or not .

L'engin est alors en configuration travail. Les trappes 211 sont ouvertes, pour permettre une vidange du réservoir de l'engin et la dépose des matériaux en vrac contenus à l'intérieur de l'engin sur le sol.The machine is then in working configuration. The hatches 211 are open, to allow an emptying of the tank of the machine and the deposit of the bulk materials contained inside the machine on the ground.

L'engin se déplace avec le guidon formant l'avant de l'engin, et la table 4 de lissage l'arrière de l'engin comme l'illustre la flèche D à la figure 7. L'ouverture de déchargement du réservoir est disposée en avant de la table 4 de lissage et les roues en avant de l'ouverture de déchargement du réservoir. La cale ou la base est donc en arrière de l'engin.The machine moves with the handlebars forming the front of the machine, and the smoothing table 4 the rear of the machine as illustrated by arrow D at the figure 7 . The tank unloading opening is arranged in front of the smoothing table 4 and the wheels in front of the tank unloading opening. The hold or base is therefore behind the machine.

L'engin est piloté en direction par le conducteur de l'engin agissant sur le guidon. Les roues circulent d'abord sur la surface à revêtir. Les matériaux en vrac tombent par gravité sur le sol, c'est-à-dire sur la surface à revêtir. Lors de l'avance de l'engin, ces matériaux en vrac déposés sont lissés ou nivelés par la table 4 de lissage qui repose constamment en appui sur la surface venant d'être revêtue.The machine is piloted in direction by the driver of the machine acting on the handlebar. The wheels first run on the surface to be coated. Bulk materials fall by gravity to the ground, i.e. onto the surface to be coated. During the advance of the machine, these loose bulk materials are smoothed or leveled by the smoothing table 4 which constantly rests on the surface which has just been coated.

Dans un cas d'application particulier, à savoir le gravillonnage d'une surface, l'engin peut également être utilisé avec un sens de déplacement opposé, c'est-à-dire avec la table de lissage formant l'avant de l'engin. Dans ce cas, l'ouverture des trappes est bridée à une valeur donnée et l'engin est utilisé avec cette direction de déplacement pour effectuer un tel gravillonnage.In a particular application case, namely the graveling of a surface, the machine can also be used with an opposite direction of movement, that is to say with the smoothing table forming the front of the contraption. In this case, the hatch opening is clamped to a given value and the machine is used with this direction of movement to carry out such graveling.

Claims (10)

  1. A rolling device (1), in particular for depositing bulk materials on the ground in the form of a bed, said device (1) including a rolling chassis (2) equipped with a reservoir (3) for storing and distributing bulk materials and a smoothing table (4), the smoothing table (4) having a leading edge (5) arranged transversely to the direction of movement of the device, i.e., along the width of the device (1), and said reservoir (3) being provided, in the lower part forming the bottom (6) of the reservoir (3), with a discharge opening (7) arranged between the leading edge (5) of the smoothing table (4) and the wheels (8) of the rolling chassis (2) of the device (1), in order to deposit a bed of bulk material with a controlled thickness, characterized in that the rolling chassis (2) is mounted so as to be able to tilt around the rotation axis (XX') of the wheels (3) by means of which it rests on the ground in order for said device (1) to go from a so-called working configuration in which the smoothing table (4) is in bearing contact with the ground to a so-called transport configuration, in which the smoothing table (4) is separated from the ground, in that the wheels (8) of the rolling chassis (2) are driving wheels (8), and in that the reservoir (3) and the smoothing table (4) form a movable assembly (3, 4) whose position is adjustable via adjusting means (91, 92) configured to allow, at least in the position in which the wheels (8) of the rolling chassis (2) rest on a horizontal flat ground and the smoothing table (4) extends parallel to the ground, separated from the ground, on the one hand, an adjustment of the height of the smoothing table (4) and of the discharge opening (7) by raising or lowering said assembly (3, 4) so as to move it further from or closer to the ground and, on the other hand, an adjustment of the incline of the smoothing table (4) so as to form a non-nil angle (α) between the plane of the smoothing table (4) and the rotation axis (XX') of the wheels (8).
  2. The device (1) according to claim 1, characterized in that the adjusting means (91, 92) configured for a height and incline adjustment of the smoothing table (4) are at least partially shared.
  3. The device (1) according to one of the preceding claims, characterized in that the adjusting means (91, 92) include two actuators (91, 92) actuated independently and each arranged between the chassis (2) and the movable assembly (3, 4).
  4. The device (1) according to claim 3, characterized in that each actuator (91, 92) is a jack (91, 92), the rod (11) of which is fastened to the chassis (2) and the body (10) of which is fastened via an arm (12) to said movable assembly.
  5. The device (1) according to claim 4, characterized in that the longitudinal axis of said jack (91, 92) extends orthogonally to the rotation axis (XX') of the wheels (8).
  6. The device (1) according to one of claims 4 or 5, characterized in that one of the arms (12) and said movable assembly (3, 4) are coupled to one another via a pivot link (13) with an axis transverse to the rotation axis (XX') of the wheels (8) and parallel to the plane of the smoothing table (4), and in that the other of the arms (12) and said assembly (3, 4) are coupled to one another by a pivot and slide link (14), the sliding being able to be done along a direction parallel to the leading edge (5) of the smoothing table (4).
  7. The device (1) according to one of claims 4 to 6, characterized in that the device (1) is equipped with a U-shaped handlebar (15), the branches (16) of the U coupling the core (17) of the handle-forming U to the jacks (91, 92), and in that one of the branches (16) of the U is coupled to one (92) of the jacks (91, 92) so as to be movable by sliding along said jack (92).
  8. The device (1) according to one of the preceding claims, characterized in that the reservoir (3) open from above is delimited by a so-called front transverse wall (18), a so-called rear transverse wall (19) and two so-called side longitudinal walls (20), in that the leading edge (5) of the table (4) extends to the base of the rear wall (19) of the reservoir (3), and in that the discharge opening (7) is a closable opening.
  9. The vehicle (1) according to claim 8, characterized in that the reservoir (3) is compartmentalized by partitions (21) extending parallel to the longitudinal axis of the device (1) considered along the movement direction of the device (1), in that the means (22) for closing off the discharge opening (7) include a series of hatches (221) arranged side by side along the direction of the width of the device (1), said hatches (221) being movably mounted between a closed position of the discharge opening (7) in which said hatches (221) are separated from one another by a partition (21) and an open position of the discharge opening (7) in which said hatches (221) at least partially protrude from said reservoir (3), at least one of the hatches (221) being able to move between the closed position and the open position independently of the other hatches (221), and in that the device (1) is equipped with an end-of-travel stop (23) for the hatches (221) in the open position, the position of said end-of-travel stop (23) being adjustable.
  10. The device (1) according to one of claims 8 or 9, characterized in that the reservoir (3) includes two flaps (24) for adjusting the width of the bed of bulk materials to be deposited, each flap (24) extending below the means (22) for closing off the discharge opening (7) in the closed position of said discharge opening (7), each flap (24) being, at its so-called upper edge, coupled to a side wall (20) of the reservoir (3) by a pivot link with a pivot axis parallel to the plane of the smoothing table (4) for the passage of said flap (24) from a position pressed against said side wall (20) to a position separated from said side wall (20).
EP17731194.1A 2016-05-10 2017-05-04 Wheeled machine, in particular for deposition of bulk materials on the soil Active EP3455410B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1654149A FR3051204B1 (en) 2016-05-10 2016-05-10 ROLLING MACHINE, IN PARTICULAR FOR FLOOR REMOVAL, IN THE FORM OF A BED, OF BULK MATERIALS
PCT/FR2017/051071 WO2017194859A1 (en) 2016-05-10 2017-05-04 Rolling device, in particular for placing bulk materials on the ground

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EP3455410A1 EP3455410A1 (en) 2019-03-20
EP3455410B1 true EP3455410B1 (en) 2020-04-29

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US (1) US10597831B2 (en)
EP (1) EP3455410B1 (en)
AU (1) AU2017264715B2 (en)
CA (1) CA3023784C (en)
ES (1) ES2795599T3 (en)
FR (1) FR3051204B1 (en)
MX (1) MX2018013572A (en)
WO (1) WO2017194859A1 (en)
ZA (1) ZA201806390B (en)

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ZA201806390B (en) 2019-06-26
US10597831B2 (en) 2020-03-24
ES2795599T3 (en) 2020-11-24
CA3023784C (en) 2023-08-29
WO2017194859A1 (en) 2017-11-16
FR3051204A1 (en) 2017-11-17
US20190145064A1 (en) 2019-05-16
EP3455410A1 (en) 2019-03-20
MX2018013572A (en) 2019-02-21
AU2017264715B2 (en) 2021-12-02
AU2017264715A1 (en) 2018-12-13
CA3023784A1 (en) 2017-11-16
FR3051204B1 (en) 2018-05-04

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