EP0036465A1 - Self-propelled apparatus for constructing a road pavement by spreading a binder-aggregate mixture - Google Patents

Self-propelled apparatus for constructing a road pavement by spreading a binder-aggregate mixture Download PDF

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Publication number
EP0036465A1
EP0036465A1 EP80420056A EP80420056A EP0036465A1 EP 0036465 A1 EP0036465 A1 EP 0036465A1 EP 80420056 A EP80420056 A EP 80420056A EP 80420056 A EP80420056 A EP 80420056A EP 0036465 A1 EP0036465 A1 EP 0036465A1
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EP
European Patent Office
Prior art keywords
transverse
machine
hedgehog
machine according
vertical
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.)
Withdrawn
Application number
EP80420056A
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German (de)
French (fr)
Inventor
Lucien Jerez
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Individual
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Individual
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Publication date
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Publication of EP0036465A1 publication Critical patent/EP0036465A1/en
Withdrawn legal-status Critical Current

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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
    • E01C19/22—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 consolidating or finishing laid-down unset materials
    • E01C19/42—Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating
    • 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
    • E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
    • E01C19/182—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect solely for depositing
    • 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
    • E01C19/22—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 consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
    • E01C19/266—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles fitted to vehicles, road-construction or earth-moving machinery, e.g. auxiliary roll readily movable to operative position ; provided with means for facilitating transport; Means for transporting rollers; Arrangements or attachments for converting vehicles into rollers, e.g. rolling sleeves for wheels
    • 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
    • E01C19/22—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 consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
    • E01C19/405—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers with spreading-out, levelling or smoothing means other than the tamping or vibrating means for compacting or smoothing, e.g. with screws for spreading-out the previously dumped material, with non-vibratory lengthwise reciprocated smoothing beam
    • 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
    • E01C19/4833—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 tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
    • E01C19/4853—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements
    • E01C19/486—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements with non-vibratory or non-percussive pressing or smoothing means; with supplemental elements penetrating the paving to work the material thereof
    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
    • 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
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
    • E01C7/353—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively bituminous binders; Aggregate, fillers or other additives for application on or in the surface of toppings with exclusively bituminous binders, e.g. for roughening or clearing
    • 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
    • E01C2301/10—Heated screeds

Definitions

  • the present invention relates to a self-propelled machine for spreading agglomerates, and other road surfaces.
  • the object of the invention is to produce a self-propelled machine capable, in a single pass, of producing a road surface ready for use.
  • the object of the invention is to produce a self-propelled machine capable of carrying out alone not only the actual spreading of the coating materials, but also the smoothing and finishing of the coating.
  • the various mobile members of the machine are provided with electric drive motors supplied with electricity from a generator group mounted at the front of the drive wheels, the center of gravity of the 'machine being located at the front of these drive wheels.
  • the operator's station is located at its front end, and is provided with a steering wheel connected by means of a steering column to a toothed pinion in engagement with a toothed wheel of a yoke with a vertical axis of rotation in which the transverse rolling roller is mounted to rotate freely.
  • a flow adjustment flap is placed inside the corridor connecting the lower orifice for leaving the hopper to the upper orifice for feeding the hedgehog carrier housing.
  • the same electric motor drives on the one hand a drive shaft secured to a first worm for driving the push screw and a second worm for driving the hedgehog, and on the other hand a reduction gear for driving the driving wheels.
  • the transverse smoothing rule is set in motion using a drive shaft secured to an eccentric trapped in a vertical slot hollowed out in this rule.
  • the transverse smoothing rule is telescopic, and comprises two half-rules attached one behind the other, the lower edges laughers are in the same substantially horizontal plane, and fixed to each other by means of bolts engaged in longitudinal slots of these half-rules.
  • the lady is actuated using a transverse horizontal shaft which carries at each end a cam placed above a vertical piston pinched between the active surface of the cam and the upper end of a vertical slide integral with the lady, each slide being surrounded by a helical spring constantly compressed between a shoulder provided at the upper end of the corresponding slide and a fixed surface of the chassis of the machine.
  • the heating ramp is constituted by an infrared ramp supplied either with gas or with electricity.
  • the various moving parts of this machine are fitted with electric drive motors. These engines are supplied with electricity from a generator 8 mounted on the part of the chassis 3 located at the front of the drive wheels 2. Since such a generator set is relatively heavy, it can be seen that the center of gravity of the machine is located at the front of the drive wheels 2, which is essential for the roller 1 is permanently worn on the ground, even outside the periods of use of the jack 6. If necessary, the front part of the chassis 3 can be provided with a counterweight 9.
  • the cockpit 10 of the machine is placed at the front end of the latter, and is provided with an electronic control cabinet 11 as well as a steering wheel 12.
  • the latter is connected via from a vertical steering column 13 to a toothed pinion 14 engaged with a toothed wheel 15 secured to a yoke 16 (fig 4).
  • the transverse roller 1 is mounted to rotate freely in the yoke 16, while a pivot 17 oriented orthogonally to the axis of the transverse roller 1 and to the vertical axis of rotation 18 of the yoke 16 gives the roller 1 a degree of additional freedom.
  • the drive wheels 2 have at their periphery a rubberized tire 19, and are both integral with the same drive shaft 20.
  • the agglomerate distribution device 4 comprises a hopper 21 which constitutes the agglomerate reserve, and whose vertical geometric axis 22 is located in the same transverse vertical plane as the axis of the driving wheels 2, while being fairly strongly off-center with respect to the vertical median plane of the machine, as can be seen in Figures 2 and 5.
  • a push screw 23 coaxial with the hopper 21 extends in the central part of the latter by continuously turning on itself in the direction which allows the forced entrainment downwards of the agglomerate particles which the hopper contains 21, in the direction of a lower outlet orifice 24.
  • the housing 28 contains a hedgehog 29 comprising semi-rigid strands 30 integral with a horizontal drive shaft 31 which extends transversely relative to the machine, over the entire width of the machine.
  • the shaft 31 is integral with a toothed drive wheel 32.
  • the semi-rigid strands 30 are arranged so that each lateral half of the hedgehog fits into a frustoconical volume which tapers towards the corresponding edge of the machine.
  • a horizontal and transverse distribution spout with adjustable orientation 33 which extends over the entire width of the machine, is mounted on the lower outlet orifice of the hedgehog carrier housing 28.
  • the wheel drive drive is achieved using a toothed belt 35 ensuring the transmission of movement between a pulley 36 wedged on the output shaft 37 of the motor 34 and a receiving pulley 38 which drives the shaft 20 by means of a wheel and worm gear reducer 39.
  • a worm 40 directly wedged on the output shaft 37 of the motor 34 at the rear of the pulley 36, meshes with a toothed wheel 41 secured to the push screw 23 , to train the latter.
  • an endless screw 42 wedged on the rear end of the output shaft 37 of the motor 34 meshes with the toothed wheel 32 of the shaft 31 to rotate the hedgehog 29.
  • the output shaft 37 of the motor 34 rotates at approximately 3000 revolutions per minute, the generator 8 delivering an alternating current with a nominal value of 220 volts.
  • Rule 5 which is telescopic, comprises two half-rules 5a and 5b (fig 6) which are joined one behind the other, and whose lower edges are in the same substantially horizontal plane. These two half-rules are fixed to one another by means of bolts 43 engaged in longitudinal slots 44 of the half-rules.
  • a gear motor 45 whose output shaft 46 is secured to an eccentric 47 trapped in a vertical slot 48 hollowed out in the rule 5 drives the latter with an alternating movement of the slide lying, parallel to itself. You can adjust the assembly so that the ruler performs, for example, around 200 round trips per minute.
  • Lady 6 is integral with two vertical and cylindrical slides 49 (fig 7) mounted to slide each in a lateral support 50 of the chassis 3.
  • Each slide 49 is surrounded by a helical spring 51 constantly compressed between the lower cover 52 of the corresponding support 50 and a shoulder 53 provided at the upper end of this slide.
  • On each side there is a vertical piston 54 pinched between the upper end of the corresponding slide 49 and a cam 55.
  • the two cams 55 are carried by the opposite ends of a horizontal and transverse shaft 56.
  • the setting in motion of the lady is ensured using an electric motor 57, via a wheel and worm gear reducer 58 and a transmission belt 59 which is wound between a pulley 60 wedged on the shaft output of the reducer 58 and a receiving pulley 61 wedged on the shaft 56.
  • the assembly can be adjusted so that the lady strikes, for example, about 25 strokes per minute on the ground.
  • the heating ramp 7 is an infrared ramp which operates either with electricity or with gas.
  • This machine which can advantageously be used for spreading agglomerates on narrow roads, for example on sidewalks, has the advantage of being usable on the whole of its width, since the active parts of the distribution device 4, of the rule 5, of the jack 6 and of the heating ramp 7 extend practically over the entire overall width of the machine. This feature allows for spreading by leveling the edge of walls, the edge of sidewalks, or generally the edge of any fixed lateral structure.
  • an additional heating ramp 65 can be placed at the front of the roller 1 (FIG. 5).
  • this additional ramp 65 makes it possible to soften this coating before the passage of the roller 1, on the one hand to level this coating , and on the other hand to allow good bonding of the agglomerates.

Abstract

The apparatus for constructing, in a single pass, a ready-to-use road pavement (63) comprises, from front to rear: a directing and rolling transverse roller (1); two driving lateral wheels (2) arranged in proximity to the centre of the subframe (3); in immediate proximity to these wheels (2), a device (4) for dispensing the aggregate-binder mixture; a transverse smoothing blade (5) having an alternating axial translational movement; a rammer (6) controlled by rotary cams; and a transverse heating ramp (7) for the hardening of a polymerisable binder. The dispensing device (4) comprises a hopper, which is centred on the transverse plane containing the axis of the wheels (2) and is equipped with a central vertical thrust screw (23) which supplies a transverse housing (28) having a pouring spout (33) at a controlled rate, a transverse rotary porcupine roller in the form of two truncated cones with their large bases opposite and having semi-rigid strands being accommodated in this housing (28). <IMAGE>

Description

La présente invention concerne un engin automoteur pour 1' épandage d'agglomérés, et autres revêtements routiers.The present invention relates to a self-propelled machine for spreading agglomerates, and other road surfaces.

L'invention a pour but de réaliser un engin automoteur capable, en un seul passage, de réaliser un revêtement routier prêt à être utilisé.The object of the invention is to produce a self-propelled machine capable, in a single pass, of producing a road surface ready for use.

L'invention a pour but de réaliser un engin automoteur capable d'effectuer seul non seulement l'épandage proprement dit des matériaux de revêtement, mais également le lissage et la finition du revêtement.The object of the invention is to produce a self-propelled machine capable of carrying out alone not only the actual spreading of the coating materials, but also the smoothing and finishing of the coating.

Un engin automoteur suivant l'invention, pour l'épandage d' agglomérés et autres revêtements routiers, est caractérisé en ce qu' il comprend principalement, d'avant en arrière :

  • - un rouleau transversal de cylindrage et de direction ;
  • - deux roues motrices latérales placées à proximité du milieu de l'engin ;
  • - à proximité immédiate des roues motrices, un dispositif de distribution d'agglomérés, qui prélève les agglomérés dans une réserve pour les déverser sur le sol suivant un débit contrôlé ;
  • - une règle transversale de lissage animée en permanence d' un mouvement alternatif de coulissement parallèlement à elle-même;
  • - une dame transversale animée d'un mouvement alternatif de translation verticale ;
  • - une rampe de chauffage qui s'étend transversalement à l' arrière de l'engin.
A self-propelled machine according to the invention, for spreading agglomerates and other road surfaces, is characterized in that it mainly comprises, from front to back:
  • - a transverse rolling and steering roller;
  • - two lateral drive wheels placed near the middle of the machine;
  • - in the immediate vicinity of the drive wheels, an agglomerate distribution device, which takes the agglomerates from a reserve to pour them onto the ground at a controlled rate;
  • - a transverse smoothing rule permanently animated by an alternating sliding movement parallel to itself;
  • - a transverse lady animated by an alternative movement of vertical translation;
  • - a heating ramp which extends transversely to the rear of the machine.

Suivant une caractéristique supplémentaire de l'invention, les différents organes mobiles de l'engin sont dotés de moteurs électriques d'entraînement alimentés en électricité à partir d'un groupe électrogène monté à l'avant des roues motrices, le centre de gravité de l'engin étant situé à l'avant de ces roues motrices.According to an additional characteristic of the invention, the various mobile members of the machine are provided with electric drive motors supplied with electricity from a generator group mounted at the front of the drive wheels, the center of gravity of the 'machine being located at the front of these drive wheels.

Suivant une caractéristique supplémentaire de l'invention, le poste de conduite de l'engin est situé à son extrémité avant, et est pourvu d'un volant de direction relié par l'intermédiaire d'une colonne de direction à un pignon denté en prise avec une roue dentée d'une chape à axe de rotation vertical dans laquelle le rouleau transversal de cylindrage est monté pour tourner librement.According to an additional characteristic of the invention, the operator's station is located at its front end, and is provided with a steering wheel connected by means of a steering column to a toothed pinion in engagement with a toothed wheel of a yoke with a vertical axis of rotation in which the transverse rolling roller is mounted to rotate freely.

Suivant une caractéristique supplémentaire de l'invention, le dispositif de distribution d'agglomérés comprend :

  • - une trémie qui constitue la réserve d'agglomérés, et qui est centrée sur un plan vertical transversal dans lequel passe l'axe des roues motrices latérales ;
  • - une vis de poussée qui est animée d'un mouvement de rotation autour de son axe géométrique vertical, et qui s'étend dans la zone centrale de la trémie ;
  • - un hérisson constitué par une série de brins semi-rigides solidaires d'un arbre d'entratnement animé en permanence d'un mouvement de rotation autour de son axe géométrique horizontal et transversal par rapport à l'engin, ce hérisson s'étendant sur toute la largeur de l'engin et étant logé dans un carter porte-hérisson dont l'orifice supérieur d'alimentation est relié par un couloir à l'orifice inférieur de sortie de la trémie ;
  • - un bec de distribution horizontal et transversal qui s' étend sur toute la largeur de l'engin, et qui est monté sur l'orifice inférieur de sortie du carter porte-hérisson.
According to an additional characteristic of the invention, the agglomerate distribution device comprises:
  • - a hopper which constitutes the reserve of agglomerates, and which is centered on a transverse vertical plane in which the axis passes lateral drive wheels;
  • - a push screw which is rotated around its vertical geometric axis, and which extends in the central zone of the hopper;
  • - a hedgehog constituted by a series of semi-rigid strands secured to a drive shaft permanently animated by a rotational movement around its horizontal and transverse geometric axis relative to the machine, this hedgehog extending over the entire width of the machine and being housed in a hedgehog housing, the upper feed orifice of which is connected by a corridor to the lower outlet of the hopper;
  • - a horizontal and transverse distribution spout which extends over the entire width of the machine, and which is mounted on the lower outlet orifice of the hedgehog carrier housing.

Suivant une caractéristique supplémentaire de l'invention, le hérisson comprend t

  • - dans sa partie centrale, une roue dentée qui engrène avec une vis sans fin d'entraînement;
  • - de part et d'autre de cette roue dentée, des brins semi-rigides disposés de façon que chaque moitié latérale de hérisson s' inscrive dans un volume tronconique qui va en s'effilant vers le bord correspondant de l'engin.
According to an additional characteristic of the invention, the hedgehog comprises t
  • - in its central part, a toothed wheel which meshes with an endless drive screw;
  • - on either side of this gear wheel, semi-rigid strands arranged so that each lateral half of the hedgehog s' fits into a frustoconical volume which tapers towards the corresponding edge of the machine.

Suivant une caractéristique supplémentaire de l'invention, un volet de réglage de débit est placé à l'intérieur du couloir reliant l'orifice inférieur de sortie de la trémie à l'orifice supérieur d'alimentation du carter porte-hérisson.According to an additional characteristic of the invention, a flow adjustment flap is placed inside the corridor connecting the lower orifice for leaving the hopper to the upper orifice for feeding the hedgehog carrier housing.

Suivant une caractéristique supplémentaire de l'invention, le même moteur électrique entratne d'une part un arbre de transmission solidaire d'une première vis sans fin pour l'entraînement de la vis de poussée et d'une deuxième vis sans fin pour l'entraînement du hérisson, et d'autre part un train réducteur pour l'entraînement des roues motrices.According to an additional feature of the invention, the same electric motor drives on the one hand a drive shaft secured to a first worm for driving the push screw and a second worm for driving the hedgehog, and on the other hand a reduction gear for driving the driving wheels.

Suivant une caractéristique supplémentaire de l'invention, la règle transversale de lissage est mise en mouvement à l'aide d' un arbre d'entraînement solidaire d'un excentrique prisonnier d'une fente verticale creusée dans cette règle.According to an additional characteristic of the invention, the transverse smoothing rule is set in motion using a drive shaft secured to an eccentric trapped in a vertical slot hollowed out in this rule.

Suivant une caractéristique supplémentaire de l'invention, La règle transversale de lissage est télescopique, et comprend deux demi-règles accoléas l'une derrière l'autre dont les bords inférieurs se trouvent dans un même plan sensiblement horizontal, et fixées l'une à l'autre par l'intermédiaire de boulons engagés dans des fentes longitudinales de ces demi-règles.According to an additional characteristic of the invention, the transverse smoothing rule is telescopic, and comprises two half-rules attached one behind the other, the lower edges laughers are in the same substantially horizontal plane, and fixed to each other by means of bolts engaged in longitudinal slots of these half-rules.

Suivant une caractéristique supplémentaire de l'invention, la dame est actionnée à l'aide d'un arbre horizontal transversal qui porte à chaque extrémité une came placée au-dessus d'un piston vertical pincé entre la surface active de la came et l'extrémité supérieure d'un coulisseau vertical solidaire de la dame, chaque coulisseau étant entouré d'un ressort hélicoïdal constamment comprimé entre un épaulement prévu à l'extrémité supérieure du coulisseau correspondant et une surface fixe du châssis de l'engin.According to an additional characteristic of the invention, the lady is actuated using a transverse horizontal shaft which carries at each end a cam placed above a vertical piston pinched between the active surface of the cam and the upper end of a vertical slide integral with the lady, each slide being surrounded by a helical spring constantly compressed between a shoulder provided at the upper end of the corresponding slide and a fixed surface of the chassis of the machine.

Suivant une caractéristique supplémentaire de l'invention, la rampe de chauffage est constituée par une rampe à infrarouges alimentée soit au gaz, soit à l'électricité.According to an additional characteristic of the invention, the heating ramp is constituted by an infrared ramp supplied either with gas or with electricity.

Le dessin annexé, donné à titre d'exemple non limitatif, permettra de mieux comprendre les caractéristiques de l'invention.

  • - Figure 1 est une vue extérieure en perspective d'un engin suivant l'invention.
  • - Figure 2 est une vue de dessus partielle de cet engin, avec une section partielle II-II (fig 3).
  • - Figure 3 est une section III-III (fig 2).
  • - Figure 4 est une vue partielle suivant IV (fig 3).
  • - Figure 5 est une section V-V (fig 3).
  • - Figure 6 est une vue partielle suivant VI (fig 3).
  • - Figure 7 est une section VII-VII(fig 3).
The appended drawing, given by way of nonlimiting example, will allow a better understanding of the characteristics of the invention.
  • - Figure 1 is an external perspective view of a machine according to the invention.
  • - Figure 2 is a partial top view of this machine, with a partial section II-II (fig 3).
  • - Figure 3 is a section III-III (fig 2).
  • - Figure 4 is a partial view along IV (fig 3).
  • - Figure 5 is a section VV (fig 3).
  • - Figure 6 is a partial view along VI (fig 3).
  • - Figure 7 is a section VII-VII (fig 3).

On a représenté sur les dessins un engin automoteur suivant l'invention, qui comprend principalement les organes suivants, d' avant en arrière (fig 1 et 3) :

  • - un rouleau transversal 1 de cylindrage et de direction ;
  • - deux roues motrices latérales 2 placées à proximité du milieu du châssis 3 de l'engin ;
  • - à proximité immédiate des roues motrices 2, un dispositif de distribution d'agglomérés 4, qui prélève les agglomérés dans une réserve pour les déverser sur le sol suivant un débit contrôlée
  • - une règle transversale de lissage 5, et une dame 6 ;
  • - une rampe transversale de chauffage 7
The self-propelled machine according to the invention is shown in the drawings, which mainly comprises the following members, from front to rear (FIGS. 1 and 3):
  • - a transverse roller 1 for rolling and steering;
  • - two lateral drive wheels 2 placed near the middle of the chassis 3 of the machine;
  • - in the immediate vicinity of the drive wheels 2, a chipboard distribution device 4, which takes the chipboards from a reserve to pour them onto the ground at a controlled rate
  • - a transverse smoothing rule 5, and a lady 6;
  • - a transverse heating ramp 7

Les différents organes mobiles de cet engin sont dotés de moteurs électriques d'entraînement. Ces moteurs sont alimentés en électricité à partir d'un groupe électrogène 8 monté sur la partie du châssis 3 située à l'avant des roues motrices 2. Un tel groupe électrogène étant relativement lourd, on constate que le centre de gravité de l'engin est situé à l'avant des roues motrices 2, ce qui est essentiel pour que le rouleau 1 porte en permanence sur le sol, même en dehors des périodes d'utilisation de la dame 6. En cas de besoin, on peut doter la partie avant du châssis 3 d'un contrepoids 9.The various moving parts of this machine are fitted with electric drive motors. These engines are supplied with electricity from a generator 8 mounted on the part of the chassis 3 located at the front of the drive wheels 2. Since such a generator set is relatively heavy, it can be seen that the center of gravity of the machine is located at the front of the drive wheels 2, which is essential for the roller 1 is permanently worn on the ground, even outside the periods of use of the jack 6. If necessary, the front part of the chassis 3 can be provided with a counterweight 9.

Le poste de conduite 10 de l'engin est placé à l'extrémité avant de celui-ci, et est pourvu d'une armoire de commande électronique 11 ainsi que d'un volant de direction 12. Ce dernier est relié par l'intermédiaire d'une colonne de direction verticale 13 à un pignon denté 14 en prise avec une roue dentée 15 solidaire d'une chape 16 (fig 4). Le rouleau transversal 1 est monté pour tourner librement dans la chape 16, tandis qu'un pivot 17 orienté orthogonalement à l'axe du rouleau transversal 1 et à l'axe de rotation vertical 18 de la chape 16 confère au rouleau 1 un degré de liberté supplémentaire.The cockpit 10 of the machine is placed at the front end of the latter, and is provided with an electronic control cabinet 11 as well as a steering wheel 12. The latter is connected via from a vertical steering column 13 to a toothed pinion 14 engaged with a toothed wheel 15 secured to a yoke 16 (fig 4). The transverse roller 1 is mounted to rotate freely in the yoke 16, while a pivot 17 oriented orthogonally to the axis of the transverse roller 1 and to the vertical axis of rotation 18 of the yoke 16 gives the roller 1 a degree of additional freedom.

Comme on peut le voir sur la figure 5, les roues motrices 2 possèdent à leur périphérie un bandage caoutchouté 19, et sont toutes deux solidaires d'un même arbre d'entraînement 20.As can be seen in FIG. 5, the drive wheels 2 have at their periphery a rubberized tire 19, and are both integral with the same drive shaft 20.

A sa partie supérieure, le dispositif de distribution d'agglomérés 4 comprend une trémie 21 qui constitue la réserve d'agglomérés, et dont l'axe géométrique vertical 22 est situé dans le même plan vertical transversal que l'axe des roues motrices 2, tout en étant assez fortement décentré par rapport au plan médian vertical de l'engin, comme on peut le voir sur les figures 2 et 5.At its upper part, the agglomerate distribution device 4 comprises a hopper 21 which constitutes the agglomerate reserve, and whose vertical geometric axis 22 is located in the same transverse vertical plane as the axis of the driving wheels 2, while being fairly strongly off-center with respect to the vertical median plane of the machine, as can be seen in Figures 2 and 5.

Une vis de poussée 23 coaxiale avec la trémie 21 s'étend dans la partie centrale de celle-ci en tournant sur elle-même en permanence dans le sens qui permet l'entraînement forcé vers le bas des particules d'aggloméré que contient la trémie 21, en direction d'un orifice inférieur de sortie 24.A push screw 23 coaxial with the hopper 21 extends in the central part of the latter by continuously turning on itself in the direction which allows the forced entrainment downwards of the agglomerate particles which the hopper contains 21, in the direction of a lower outlet orifice 24.

Un couloir 25 en pente vers le bas et vers l'arrière, et renfermant un volet de réglage de débit 26, relie l'orifice 24 à l' orifice supérieur d'alimentation 27 d'un carter porte-hérisson 28.A corridor 25 sloping downwards and backwards, and containing a flow adjustment flap 26, connects the orifice 24 to the upper supply orifice 27 of a hedgehog carrier housing 28.

Le carter 28 renferme un hérisson 29 comprenant des brins semi-rigides 30 solidaires d'un arbre d'entraînement horizontal 31 qui s'étend transversalement par rapport à l'engin, sur toute la largeur de l'engin. Dans sa partie centrale, l'arbre 31 est solidaire d'une roue dentée d'entraînement 32. De part et d'autre de la roue dentée 32, les brins semi-rigides 30 sont disposés de façon que chaque moitié latérale de hérisson s'inscrive dans un volume tronconique qui va en s'effilant vers le bord correspondant de l'engin. Un bec de distribution horizontal et transversal à orientation réglable 33, qui s'étend sur toute la largeur de l'engin, est monté sur l'orifice inférieur de sortie du carter porte-hérisson 28.The housing 28 contains a hedgehog 29 comprising semi-rigid strands 30 integral with a horizontal drive shaft 31 which extends transversely relative to the machine, over the entire width of the machine. In its central part, the shaft 31 is integral with a toothed drive wheel 32. On either side of the wheel toothed 32, the semi-rigid strands 30 are arranged so that each lateral half of the hedgehog fits into a frustoconical volume which tapers towards the corresponding edge of the machine. A horizontal and transverse distribution spout with adjustable orientation 33, which extends over the entire width of the machine, is mounted on the lower outlet orifice of the hedgehog carrier housing 28.

C'est un seul et unique moteur électrique à vitesse variable 34 qui est utilisé pour entraîner d'une part les roues motrices 2, et d'autre part les deux organes tournants du dispositif de distribution d'agglomérés 4. L'entratnement des roues motrices est réalisé à l'aide d'une courroie crantée 35 assurant la transmission du mouvement entre une poulie 36 calée sur l'arbre de sortie 37 du moteur 34 et une poulie réceptrice 38 qui entraîne l'arbre 20 par l'intermédiaire d'un réducteur à roue et vis sans fin 39. Une vis sans fin 40, calée directement sur l'arbre de sortie 37 du moteur 34 à l'arrière de la poulie 36, engrène avec une roue dentée 41 solidaire de la vis de poussée 23, pour entraîner cette dernière. Enfin, une vis sans fin 42 calée sur l'extrémité arrière de l'arbre de sortie 37 du moteur 34, engrène avec la roue dentée 32 de l'arbre 31 pour faire tourner le hérisson 29.It is a single and variable speed electric motor 34 which is used to drive on the one hand the driving wheels 2, and on the other hand the two rotating members of the agglomerate distribution device 4. The wheel drive drive is achieved using a toothed belt 35 ensuring the transmission of movement between a pulley 36 wedged on the output shaft 37 of the motor 34 and a receiving pulley 38 which drives the shaft 20 by means of a wheel and worm gear reducer 39. A worm 40, directly wedged on the output shaft 37 of the motor 34 at the rear of the pulley 36, meshes with a toothed wheel 41 secured to the push screw 23 , to train the latter. Finally, an endless screw 42 wedged on the rear end of the output shaft 37 of the motor 34, meshes with the toothed wheel 32 of the shaft 31 to rotate the hedgehog 29.

En ce qui concerne les différentes vitesses de fonctionnement adoptées, on peut donner les ordres de grandeur suivants à titre non limitatif :

  • - vitesse d'avance de l'engin : 2 à 5 mètres par minute ,
  • - vitesse de rotation de la vis de poussée 23 : 25 tours par minute ,
  • - vitesse de rotation du hérisson 29 : au maximum 40 tours par minute.
With regard to the different operating speeds adopted, the following orders of magnitude can be given without limitation:
  • - advance speed of the machine: 2 to 5 meters per minute,
  • - rotation speed of the push screw 23: 25 revolutions per minute,
  • - rotation speed of the hedgehog 29: maximum 40 revolutions per minute.

L'arbre de sortie 37 du moteur 34 tourne à environ 3000 tours par minute, le groupe électrogène 8 délivrant un courant alternatif d'une valeur nominale de 220 volts.The output shaft 37 of the motor 34 rotates at approximately 3000 revolutions per minute, the generator 8 delivering an alternating current with a nominal value of 220 volts.

La règle 5, qui est télescopique, comprend deux demi-règles 5a et 5b (fig 6) qui sont accolées l'une derrière l'autre, et dont les bords inférieurs se trouvent dans un même plan sensiblement horizontal. Ces deux demi-règles sont fixées l'une à l'autre à l'aide de boulons 43 engagés dans des fentes longitudinales 44 des demi-règles. Un moto-réducteur 45 dont l'arbre de sortie 46 est solidaire d'un excentrique 47 prisonnier d'une fente verticale 48 creusée dans la règle 5 anime cette dernière d'un mouvement alternatif de coulissement, parallèlement à elle-même. On peut régler l'ensemble de façon que la règle effectue, par exemple, environ 200 aller-et-retours à la minute.Rule 5, which is telescopic, comprises two half-rules 5a and 5b (fig 6) which are joined one behind the other, and whose lower edges are in the same substantially horizontal plane. These two half-rules are fixed to one another by means of bolts 43 engaged in longitudinal slots 44 of the half-rules. A gear motor 45 whose output shaft 46 is secured to an eccentric 47 trapped in a vertical slot 48 hollowed out in the rule 5 drives the latter with an alternating movement of the slide lying, parallel to itself. You can adjust the assembly so that the ruler performs, for example, around 200 round trips per minute.

La dame 6 est solidaire de deux coulisseaux verticaux et cylindriques 49 (fig 7) montés pour coulisser chacun dans un support latéral 50 du châssis 3. Chaque coulisseau 49 est entouré par un ressort hélicoïdal 51 constamment comprimé entre le couvercle inférieur 52 du support 50 correspondant et un épaulement 53 prévu à l' extrémité supérieure de ce coulisseau. De chaque côté, on trouve un piston vertical 54 pincé entre l'extrémité supérieure du coulisseau 49 correspondant et une came 55. Les deux cames 55 sont portées par les extrémités opposées d'un arbre horizontal et transversal 56. La mise en mouvement de la dame est assurée à l'aide d'un moteur électrique 57, par l'intermédiaire d'un réducteur à roue et vis sans fin 58 et d'une courroie de transmission 59 qui s'enroule entre une poulie 60 calée sur l'arbre de sortie du réducteur 58 et une poulie réceptrice 61 calée sur l'arbre 56. On peut régler l'ensemble de façon que la dame frappe, par exemple, environ 25 coups à la minute sur le sol.Lady 6 is integral with two vertical and cylindrical slides 49 (fig 7) mounted to slide each in a lateral support 50 of the chassis 3. Each slide 49 is surrounded by a helical spring 51 constantly compressed between the lower cover 52 of the corresponding support 50 and a shoulder 53 provided at the upper end of this slide. On each side, there is a vertical piston 54 pinched between the upper end of the corresponding slide 49 and a cam 55. The two cams 55 are carried by the opposite ends of a horizontal and transverse shaft 56. The setting in motion of the lady is ensured using an electric motor 57, via a wheel and worm gear reducer 58 and a transmission belt 59 which is wound between a pulley 60 wedged on the shaft output of the reducer 58 and a receiving pulley 61 wedged on the shaft 56. The assembly can be adjusted so that the lady strikes, for example, about 25 strokes per minute on the ground.

Enfin, la rampe de chauffage 7 est une rampe à infrarouge qui fonctionne soit à l'électricité, soit au gaz.Finally, the heating ramp 7 is an infrared ramp which operates either with electricity or with gas.

Le fonctionnement est le suivant :

  • Il suffit de déverser dans la trémie 21 un aggloméré de re- vétement de type approprié à l'état pâteux, et de faire avancer l' engin sur un sol relativement lisse et tassé 62 pour effectuer en un seul passage s
  • - le déversement uniforme et régulier d'une couche d'aggloméré 63 sur le sol, à l'aide du dispositif de distribution 4 ;
  • - le lissage de la couche 63, à l'aide de la règle 5 ;
  • - le tassement et l'aplanissement de cette couche 63, à l' aide de la dame 6 , utilisée pour vibrer ou pour frapper le sol ;
  • - la polymérisation, et par conséquent le durcissement de la couche 63 à l'aide de la rampe de chauffage 7.
The operation is as follows:
  • It suffices to pour into the hopper 21 an agglomeration of coating of the type suitable for the pasty state, and to advance the machine on a relatively smooth and packed soil 62 to effect in a single pass s
  • - the uniform and regular pouring of a layer of agglomerate 63 on the ground, using the distribution device 4;
  • - the smoothing of layer 63, using rule 5;
  • - the compaction and flattening of this layer 63, using the lady 6, used to vibrate or to strike the ground;
  • - the polymerization, and consequently the hardening of the layer 63 using the heating ramp 7.

Dans le cas où le sol de départ ne serait pas absolument plan, on pourrait pallier cet inconvénient en faisant déplacer l'engin sur deux rails parallèles rectilignes 64 (fig 1).In the case where the starting ground is not absolutely flat, this disadvantage could be overcome by making the machine move on two parallel straight rails 64 (fig 1).

Cet engin, utilisable avantageusement pour effectuer l'épandage d'agglomérés sur des voies de petites largeurs, par exemple sur des trottoirs, présente l'avantage d'être utilisable sur la totalité de sa largeur, puisque les parties actives du dispositif de distribution 4, de la règle 5, de la dame 6 et de la rampe de chauffage 7 s' étendent pratiquement sur toute la largeur hors tout de l'engin. Cette particularité permet l'exécution d'épandages en rasant le bord des murs, le bord des trottoirs, ou d'une manière générale le bord de toute structure fixe latérale.This machine, which can advantageously be used for spreading agglomerates on narrow roads, for example on sidewalks, has the advantage of being usable on the whole of its width, since the active parts of the distribution device 4, of the rule 5, of the jack 6 and of the heating ramp 7 extend practically over the entire overall width of the machine. This feature allows for spreading by leveling the edge of walls, the edge of sidewalks, or generally the edge of any fixed lateral structure.

Suivant une dernière variante, on peut placer à l'avant du rouleau 1 une rampe de chauffage supplémentaire 65 (fig 5).According to a last variant, an additional heating ramp 65 can be placed at the front of the roller 1 (FIG. 5).

Ainsi lorsque le sol sur lequel l'engin travaille est déjà muni d'un revêtement en bitume en plus ou moins bon état, cette rampe supplémentaire 65 permet de ramollir ce revêtement avant le passage du rouleau 1, d'une part pour niveler ce revêtement, et d'autre part pour permettre un bon accrochage des agglomérés.Thus when the ground on which the machine is working is already provided with a bitumen coating in more or less good condition, this additional ramp 65 makes it possible to soften this coating before the passage of the roller 1, on the one hand to level this coating , and on the other hand to allow good bonding of the agglomerates.

Claims (10)

1. Engin automoteur pour l'épandage d'agglomérés et autres revêtements routiers, caractérisé en ce qu'il comprend principalement, d'avant en arrière : - un rouleau transversal de cylindrage et de direction ; - deux roues motrices latérales placées à proximité du milieu de l'engin ; - à proximité immédiate des roues motrices, un dispositif de distribution d'agglomérés, qui prélève les agglomérés dans une réserve pour les déverser sur le sol suivant un débit contr8lé ; - une règle transversale de lissage animée en permanence d' un mouvement alternatif de coulissement parallèlement à elle-même ; - une dame transversale animée d'un mouvement alternatif de translation verticale ; - une rampe de chauffage qui s'étend transversalement à l' arrière de l'engin. 1. Self-propelled machine for spreading agglomerates and other road surfaces, characterized in that it mainly comprises, from front to back: - a transverse rolling and steering roller; - two lateral drive wheels placed near the middle of the machine; - in the immediate vicinity of the drive wheels, a chipboard distribution device, which takes the chipboards from a reserve to pour them onto the ground at a controlled rate; - a transverse smoothing rule permanently animated by an alternating sliding movement parallel to itself; - a transverse lady animated by an alternative movement of vertical translation; - a heating ramp which extends transversely to the rear of the machine. 2. Engin suivant la revendication 1, caractérisé en ce que ses différents organes mobiles sont dotés de moteurs électriques d' entraînement alimentés en électricité à partir d'un groupe électrogène monté à l'avant des roues motrices, le centre de gravité de l' engin étant situé à l'avant de ces roues motrices.2. Machine according to claim 1, characterized in that its various movable members are provided with electric drive motors supplied with electricity from a generator mounted at the front of the drive wheels, the center of gravity of the being located at the front of these drive wheels. 3. Engin suivant l'une quelconque des revendications précédentes, caractérisé en ce que son poste de conduite est situé à son extrémité avant, et est pourvu d'un volant de direction relié par l' intermédiaire d'une colonne de direction à un pignon denté en prise avec une roue dentée solidaire d'une chape à axe de rotation vertical dans laquelle le rouleau transversal de cylindrage est monté pour tourner librement, un pivot orthogonal à l'axe de rotation de la chape et à l'axe du rouleau permettant le pivotement de la chape pour conférer au rouleau transversal un degré de liberté supplémentaire.3. Machine according to any one of the preceding claims, characterized in that its driving position is located at its front end, and is provided with a steering wheel connected via a steering column to a pinion toothed in engagement with a toothed wheel integral with a yoke with vertical axis of rotation in which the transverse roll of rolling is mounted to rotate freely, a pivot orthogonal to the axis of rotation of the yoke and the axis of the roller allowing pivoting the yoke to give the transverse roller an additional degree of freedom. 4. Engin suivant l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de distribution d'agglomérés comprend - une trémie qui constitue la réserve d'agglomérés, et qui est centrée sur un plan transversal dans lequel passe l'axe des roues motrices latérales ; - une vis de poussée qui est animée d'un mouvement de rotation autour de son axe géométrique vertical, et qui s'étend dans la zone centrale de la trémie ; - un hérisson constitué par une série de brins semi-rigides solidaires d'un arbre d'entraînement animé en permanence d'un mouvement de rotation autour de son axe géométrique horizontal et transversal par rapport à l'engin, ce hérisson s'étendant sur toute la largeur de l'engin et étant logé dans un carter porte-hérisson dont l'orifice supérieur d'alimentation est relié par un couloir pourvu d'un volet intérieur de réglage de débit à l'orifice inférieur de sortie de la trémie ; - un bec de distribution horizontal et transversal qui s' étend sur toute la largeur de l'engin, et qui est monté sur l'orifice inférieur de sortie du carter porte-hérisson. 4. Machine according to any one of the preceding claims, characterized in that the agglomerate distribution device comprises - a hopper which constitutes the reserve of agglomerates, and which is centered on a transverse plane in which the axis of the lateral driving wheels passes; - a thrust screw which is rotated around its vertical geometric axis, and which extends in the central area of the hopper; - a hedgehog made up of a series of semi-rigid strands secured to a drive shaft permanently driven in a rotational movement around its horizontal and transverse geometric axis relative to the machine, this hedgehog extending over the entire width of the machine and being housed in a hedgehog housing, the upper feed orifice of which is connected by a passage provided with an internal flow control flap to the lower orifice for leaving the hopper; - a horizontal and transverse distribution spout which extends over the entire width of the machine, and which is mounted on the lower outlet orifice of the hedgehog carrier housing. 5. Engin suivant la revendication 4, caractérisé en ce que le hérisson comprend : - dans sa partie centrale, une roue dentée qui engrène avec une vis sans fin d'entraînement ; - de part et d'autre de cette roue dentée, des brins semi-rigides disposés de façon que chaque moitié latérale de hérisson s' inscrive dans un volume tronconique qui va en s'effilant vers le bord correspondant de l'engin. 5. Machine according to claim 4, characterized in that the hedgehog comprises: - in its central part, a toothed wheel which meshes with an endless drive screw; - on either side of this gear wheel, semi-rigid strands arranged so that each lateral half of the hedgehog s' fits into a frustoconical volume which tapers towards the corresponding edge of the machine. 6. Engin suivant la revendication 5, caractérisé en ce que le même moteur électrique entraîne d'une part un arbre de transmission solidaire d'une première vis sans fin pour l'entraînement de la vis de poussée et d'une deuxième vis sans fin pour l'entraînement du hérisson, et d'autre part un réducteur pour l'entraînement des roues motrices.6. Machine according to claim 5, characterized in that the same electric motor drives on the one hand a transmission shaft secured to a first worm for driving the push screw and a second worm for driving the hedgehog, and on the other hand a reducer for driving the drive wheels. 7. Engin suivant l'une quelconque des revendications précédentes, caractérisé en ce que la règle transversale de lissage est mise en mouvement à l'aide d'un arbre d'entrainement solidaire d'un excentrique prisonnier d'une fente verticale creusée dans cette règle.7. Machine according to any one of the preceding claims, characterized in that the transverse smoothing rule is set in motion using a drive shaft secured to an eccentric trapped in a vertical slot dug in this rule. 8. Engin suivant l'uneqquelconque des revendications précédentes, caractérisé en ce que la règle transversale de lissage est télescopique, et comprend deux demi-règles accolées l'une derrière l'autre dont les bords inférieurs se trouvent dans un même plan sensiblement horizontal.8. Machine according to uneqquelconque of the preceding claims, characterized in that the transverse smoothing rule is telescopic, and comprises two half-rules joined one behind the other whose lower edges are in the same substantially horizontal plane. 9. Engin suivant l'une quelconque des revendications précédentes, caractérisé en ce que la dame est actionnée à l'aide d'un arbre horizontal transversal qui porte à chaque extrémité une came placée au-dessus d'un piston vertical pincé entre la surface active de la came et l'extrémité supérieure d'un coulisseau vertical solidaire de la dame, chaque coulisseau étant entouré d'un ressort hélicoïdal constamment comprimé entre un épaulement prévu à l'extrémité supérieure du coulisseau correspondant et une surface fixe du châssis de l'engin.9. Machine according to any one of the preceding claims, characterized in that the hoe is actuated using a transverse horizontal shaft which carries at each end a cam pla cée above a vertical piston pinched between the active surface of the cam and the upper end of a vertical slide integral with the lady, each slide being surrounded by a helical spring constantly compressed between a shoulder provided at the upper end of the corresponding slide and a fixed surface of the chassis of the machine. 10. Engin suivant l'une quelconque des revendications précédentes, caractérisé en ce que la rampe de chauffage est constituée par une rampe à infrarouges alimentée au gaz ou à l'électricité, tandis qu'une rampe de chauffage supplémentaire est prévue à l'avant du rouleau transversal de cylindrage et de direction.10. Machine according to any one of the preceding claims, characterized in that the heating ramp consists of an infrared ramp supplied with gas or electricity, while an additional heating ramp is provided at the front of the transverse rolling and steering roller.
EP80420056A 1980-03-14 1980-05-08 Self-propelled apparatus for constructing a road pavement by spreading a binder-aggregate mixture Withdrawn EP0036465A1 (en)

Applications Claiming Priority (2)

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FR8006081 1980-03-14
FR8006081A FR2478156A1 (en) 1980-03-14 1980-03-14 AUTOMOTIVE ENGINE FOR SPREADING AGGLOMERES, AND OTHER ROAD COVERINGS

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FR649643A (en) * 1928-02-24 1928-12-26 Device for road construction and maintenance
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GB558175A (en) * 1942-09-15 1943-12-23 Neuchatel Asphalte Company Ltd Improved method of and apparatus for providing layers of mastic upon surfaces to be covered
FR1125905A (en) * 1950-05-02 1956-11-12 Alfelder Eisenwerk Mobile device usable in particular for spreading bituminous materials intended for road construction
DE845350C (en) * 1950-10-20 1952-07-31 Richard Muehlhaeuser Distribution and compression device for road surfaces made of concrete or bituminous materials
US2864452A (en) * 1956-11-05 1958-12-16 Guntert & Zimmerman Const Div Supporting and level control mechanism for concrete slab laying machines
US3161116A (en) * 1960-04-22 1964-12-15 Curbmaster Of America Inc Curb molding and shaping apparatus
US3301151A (en) * 1964-12-28 1967-01-31 Hanson Co R A Concrete distributor
FR1509347A (en) * 1966-01-19 1968-01-12 Shell Int Research Apparatus and method for the preparation of a mortar containing a thermosetting synthetic resin and a mineral filler
FR1482085A (en) * 1966-03-25 1967-05-26 Entpr S Devars Naudo & Cie Machine for casting slabs of various agglomerates, for example concrete
US3453988A (en) * 1967-10-09 1969-07-08 Shell Oil Co Portable flooring spreader
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DE2027297A1 (en) * 1970-06-03 1971-12-16 Deutsche Asphalt GmbH, 6000 Frank fürt Mastic asphalt installation device
FR2246693A1 (en) * 1973-10-05 1975-05-02 Tarmac Roadstone Holdings Ltd Roughened road surface contains thermoplastic granules - heat aggregated with chippings to give improved grip for motor vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109371787A (en) * 2018-11-08 2019-02-22 张程博 A kind of road construction concrete speading device
CN112853875A (en) * 2021-01-11 2021-05-28 云南途睿建设工程有限公司 A pitch road shakeouts device for municipal works
CN112853875B (en) * 2021-01-11 2022-05-03 云南途睿建设工程有限公司 A pitch road shakeouts device for municipal works
CN113585017A (en) * 2021-08-25 2021-11-02 中冶南方城市建设工程技术有限公司 Road cement concrete distributing, vibrating and paving integrated equipment and using method thereof

Also Published As

Publication number Publication date
FR2478156A1 (en) 1981-09-18
FR2478156B1 (en) 1983-05-20

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