FR2775699A1 - Actuating method for road surface binding agent diffusers and gravel spreaders - Google Patents

Actuating method for road surface binding agent diffusers and gravel spreaders Download PDF

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Publication number
FR2775699A1
FR2775699A1 FR9802941A FR9802941A FR2775699A1 FR 2775699 A1 FR2775699 A1 FR 2775699A1 FR 9802941 A FR9802941 A FR 9802941A FR 9802941 A FR9802941 A FR 9802941A FR 2775699 A1 FR2775699 A1 FR 2775699A1
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France
Prior art keywords
roadway
diffusers
gravel
vehicle
points
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Granted
Application number
FR9802941A
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French (fr)
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FR2775699B1 (en
Inventor
Jean Michel Serres
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Concepts Travaux Publics SAS
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Concepts Travaux Publics SAS
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Publication date
Application filed by Concepts Travaux Publics SAS filed Critical Concepts Travaux Publics SAS
Priority to FR9802941A priority Critical patent/FR2775699B1/en
Priority to PCT/FR1998/002926 priority patent/WO1999035336A1/en
Publication of FR2775699A1 publication Critical patent/FR2775699A1/en
Application granted granted Critical
Publication of FR2775699B1 publication Critical patent/FR2775699B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E01C19/12—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
    • E01C19/16—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 for applying or spreading liquid materials, e.g. bitumen slurries
    • E01C19/17—Application by spraying or throwing
    • E01C19/176—Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars
    • 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
    • E01C19/21—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 for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading ; for filling grooves and gritting the filling
    • 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
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/07—Apparatus combining measurement of the surface configuration of paving with application of material in proportion to the measured irregularities
    • 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
    • E01C2019/207—Feeding the distribution means
    • E01C2019/2095—Feeding the distribution means by tipping
    • 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
    • E01C2301/40—Working platform or walkway

Abstract

The method involves using a laser emitter (4) to project a sighting mark (6) onto the road surface (5) at a set point ahead of the surfacing vehicle (3) and a predetermined distance in front of the spreading equipment (1,2). The diffusers for the binding agent and gravel spreader shutters are controlled by a joystick with a four-position lever and a programmable electronic unit to dispense the surface materials in accordance with the vehicle speed and road width.

Description

-1--1-

PROCEDE POUR L'ACTIONNEMENT DE DIFFUSEURS DE LIANT ET/OU DE VANNES  METHOD FOR OPERATING BINDER AND / OR VALVE DIFFUSERS

DE DISTRIBUTION DE GRAVILLONS ET DISPOSITIF POUR SA MISE EN OEUVRE  DISPENSING DEVICE AND DEVICE FOR ITS IMPLEMENTATION

DESCRIPTIONDESCRIPTION

La présente invention concerne un procédé pour l'actionnement, déphasé et sélectif, de diffuseurs de liant équipant une rampe de répandage et/ou de vannes de distribution alimentant un diffuseur-répartiteur de gravillons, ladite rampe de répandage et/ou le diffuseur-répartiteur étant solidaires d'un véhicule porteur utilisé pour la réalisation de travaux routiers. L'invention concerne également un dispositif pour la mise en oeuvre dudit procédé. Les procédés et dispositifs connus du genre en question font intervenir une mire de visée, placée au niveau du parebrise du véhicule porteur, qui reproduit, grâce à une réglette graduée, la position des diffuseurs de liant  The present invention relates to a method for phase shifting and selective actuation of binder diffusers fitted to a spreading ramp and / or distribution valves supplying a gravel diffuser-distributor, said spreading ramp and / or the diffuser-distributor being integral with a carrier vehicle used for carrying out road works. The invention also relates to a device for implementing said method. The known methods and devices of the genre in question involve a target sight, placed at the level of the windscreen of the carrier vehicle, which reproduces, by means of a graduated strip, the position of the binder diffusers.

et/ou des vannes de distribution de gravillons.  and / or gravel distribution valves.

De tels moyens engendrent des erreurs de parallaxe non négligeables qui ont pour principales conséquences: - une imprécision des surfaces traitées;  Such means generate significant parallax errors which have the main consequences: - imprecision of the treated surfaces;

- une perte de matière.- loss of material.

L'invention vise donc à réaliser un procédé et un dispositif qui éliminent ces divers inconvénients: - en projetant sur la chaussée l'image d'une mire qui va se déplacer en même temps que le véhicule porteur; - en mesurant de façon précise la distance parcourue par ledit véhicule de manière à obtenir un asservissement parfait, déphasé, des diffuseurs et/ou des vannes et ce en fonction des variations dimensionnelles des surfaces à  The invention therefore aims to achieve a method and a device which eliminate these various drawbacks: - by projecting onto the roadway the image of a test pattern which will move at the same time as the carrier vehicle; - by precisely measuring the distance traveled by said vehicle so as to obtain a perfect, phase-shifted servo-control, of the diffusers and / or valves and this as a function of the dimensional variations of the surfaces to be

recouvrir de indépendamment de la vitesse dudit véhicule.  cover independently of the speed of said vehicle.

D'autres avantages, comme par exemple, pour des raisons de sécurité, la commande de l'émission du rayon laser à une vitesse minimun du véhicule, font partie des améliorations propres au dispositif selon l'invention. Les caractéristiques et les avantages de l'invention vont apparaître  Other advantages, such as for example for safety reasons, controlling the emission of the laser beam at a minimum speed of the vehicle, form part of the improvements specific to the device according to the invention. The characteristics and advantages of the invention will appear

plus clairement à la lecture de la description détaillée qui suit d'un mode  more clearly on reading the following detailed description of a mode

de réalisation préféré de celle-ci donné à titre d'exemple non limitatif et  preferred embodiment thereof given by way of nonlimiting example and

représenté aux dessins annexés.shown in the accompanying drawings.

Sur ces dessins: -2- - la figure 1 est une vue d'ensemble du dispositif selon l'invention équipant un véhicule porteur mixte liant/gravillons; les figures 2 et 3 sont des vues de dessus de la chaussée portant l'image d'une mire selon une configuration continue pour la première et discontinue pour la deuxième. L'ensemble représenté à la figure 1 comporte, essentiellement: - une rampe de répandage de liant (1) pourvue de diffuseurs; - un diffuseur-répartiteur de gravillons (2) alimenté par des vannes de distribution;  In these drawings: -2- - Figure 1 is an overall view of the device according to the invention fitted to a mixed carrier vehicle / gravel; Figures 2 and 3 are top views of the floor carrying the image of a test pattern in a continuous configuration for the first and discontinuous for the second. The assembly shown in FIG. 1 essentially comprises: - a binder spreading ramp (1) provided with diffusers; - a gravel diffuser-distributor (2) supplied by distribution valves;

- un véhicule porteur (3).- a carrier vehicle (3).

Le procédé selon l'invention consiste: - à utiliser un moyen (4) apte à projeter, sur la chaussée (5),à une distance (D1) bien déterminée dudit véhicule, l'image (6) d'une mire qui va se déplacer, sur ladite chaussée, en même temps que ledit véhicule;  The method according to the invention consists: - in using a means (4) capable of projecting, onto the roadway (5), at a well-determined distance (D1) from said vehicle, the image (6) of a target which move, on said road, at the same time as said vehicle;

- à actionner, en déphasé, les diffuseurs de liant et/ou les vannes de distri-  - to actuate, out of phase, the binder diffusers and / or the distribution valves

bution de gravillons, au bout d'une distance, parcourue par ledit véhicule, égale à celle (D1 + D2) existant entre l'image (6) de la mire sur la chaussée  increase in gravel, after a distance traveled by said vehicle, equal to that (D1 + D2) existing between the image (6) of the target on the roadway

et la rampe de répandage et/ou le diffuseur-répartiteur (2).  and the spreading ramp and / or the diffuser-distributor (2).

Le moyen (4) du dispositif selon l'invention, apte à projeter l'image  The means (4) of the device according to the invention, capable of projecting the image

d'une mire sur la chaussée, est un émetteur de rayon laser (7).  a target on the road, is a laser beam emitter (7).

Ledit émetteur comporte une tête optique génératrice, sur la chaussée (5), d'une ligne transversale: - soit continue (8) (fig.2); - soit discontinue (9), constituée d'une pluralité de points (fig.3);  Said transmitter comprises an optical head generating, on the roadway (5), a transverse line: - either continuous (8) (fig.2); - either discontinuous (9), consisting of a plurality of points (fig.3);

sur une largeur bien déterminée de la chaussée.  over a clearly defined width of the roadway.

Selon une réalisation de l'invention, le dispositif comporte, en relation avec chaque point, ou groupe de points, sur une même ligne longitudinale (10),  According to one embodiment of the invention, the device comprises, in relation to each point, or group of points, on the same longitudinal line (10),

un diffuseur de liant et/ou une vanne de distribution de gravillons.  a binder diffuser and / or a gravel distribution valve.

Selon une autre réalisation de l'invention, le dispositif comporte autant d'émetteurs (4) de rayons laser que de points, ou groupes de points, en relation avec un nombre bien déterminé de diffuseurs de liant et/ou de  According to another embodiment of the invention, the device comprises as many emitters (4) of laser rays as points, or groups of points, in relation to a well-determined number of binder diffusers and / or

vannes de distribution de gravillons.  gravel distribution valves.

Le dispositif selon l'invention comporte un pupitre de commande, en relation avec un automate programmable ou analogue, apte à actionner, en mode déphasé et sélectivement, en fonction de la chaussée à recouvrir, et ce au fur et à -3- mesure de l'avancement du véhicule porteur (3), les diffuseurs de liant et/ou les vannes de distribution de gravillons, en coincidence avec les points, ou groupes de points, en correspondance avec les parties de la  The device according to the invention comprises a control console, in connection with a programmable automaton or the like, capable of actuating, in phase-shifted mode and selectively, as a function of the roadway to be covered, and this as and when the advancement of the carrier vehicle (3), the binder diffusers and / or the gravel distribution valves, coincident with the points, or groups of points, in correspondence with the parts of the

chaussée à recouvrir.pavement to be covered.

Ledit module électronique comporte un moyen apte à ne commander l'émission du rayon laser qu'à partir d'une vitesse du véhicule bien déterminée. Le moyen (4) est en général placé dans la zone du parebrise du véhicule  Said electronic module comprises means capable of controlling the emission of the laser beam only from a well-determined vehicle speed. The means (4) is generally placed in the area of the vehicle windshield

porteur (3).carrier (3).

L'ensemble représenté à la figure 1 comporte également: - une réserve de gravillons (11) du type benne basculante;  The assembly shown in Figure 1 also includes: - a supply of gravel (11) of the tipping body type;

- une réserve de liant (12) du type cuve.  - a binder reserve (12) of the tank type.

La distance (D1) correspond à la projection sur la chaussée du rayon laser  The distance (D1) corresponds to the projection on the roadway of the laser beam

(7) délimité par l'émetteur (4) et l'image (6).  (7) delimited by the transmitter (4) and the image (6).

La distance (D2) correspond à la projection sur la chaussée de la longueur existant entre l'émetteur (4) et les diffuseurs du répandeur de liant (1)  The distance (D2) corresponds to the projection onto the floor of the length existing between the emitter (4) and the diffusers of the binder spreader (1)

ou les vannes de distribution du diffuseur-répartiteur de gravillons (2).  or the gravel diffuser-distributor distribution valves (2).

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés pour lesquels on pourra prévoir d'autres variantes, en particulier dans: - le type (laser ou autre) et le nombre de moyens susceptibles de projeter sur la chaussée l'image d'une mire; - le type d'image continu ou discontinu de la mire; - le type de moyen de comptage de la distance parcourue par le véhicule; - le nombre de diffuseurs de liant et/ou de vannes de distribution de gravillons;  Of course, the invention is not limited to the embodiments described and shown for which other variants can be provided, in particular in: - the type (laser or other) and the number of means capable of projecting onto the pavement the image of a test pattern; - the type of continuous or discontinuous image of the target; - the type of means of counting the distance traveled by the vehicle; - the number of binder diffusers and / or gravel distribution valves;

sans pour celà sortir du cadre de l'invention.  without thereby departing from the scope of the invention.

-4--4-

Claims (8)

REVENDICATIONS 1- Procédé pour l'actionnement déphasé et sélectif de diffuseurs de liant équipant une rampe de répandage (1) et/ou de vannes de distribution alimentant un diffuseur-répartiteur (2) de gravillons, ladite rampe de répandage et/ou ledit diffuseur-répartiteur étant solidaires d'un véhicule porteur (3) utilisé pour la réalisation de travaux routiers; caractérisé en ce qu'il consiste à utiliser un moyen (4) apte à projeter, sur la chaussée (5), à une distance (D1) bien déterminée dudit véhicule, l'image (6) d'une mire qui va se déplacer, sur ladite chaussée, en même temps que ledit véhicule, et à actionner, en déphasé, les diffuseurs de liant et/ou les vannes de distribution de gravillons, au bout d'une distance, parcourue par ledit véhicule, égale à celle (D1 + D2) existant entre l'image  1- Method for phase shift and selective actuation of binder diffusers fitted to a spreading ramp (1) and / or distribution valves supplying a gravel diffuser-distributor (2), said spreading ramp and / or said diffuser- distributor being integral with a carrier vehicle (3) used for carrying out road works; characterized in that it consists in using a means (4) capable of projecting, onto the roadway (5), at a well-determined distance (D1) from said vehicle, the image (6) of a target which will move , on said road, at the same time as said vehicle, and to actuate, out of phase, the binder diffusers and / or the gravel distribution valves, at the end of a distance traveled by said vehicle, equal to that (D1 + D2) existing between the image (6) de la mire sur la chaussée et la rampe de répandage (1) et/ou le diffuseur-  (6) sight on the roadway and the spreading ramp (1) and / or the diffuser- répartiteur (2).distributor (2). 2- Dispositif pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce que le moyen (4), apte à projeter sur la chaussée l'image  2- Device for implementing the method according to claim 1, characterized in that the means (4), capable of projecting the image on the floor d'une mire, est un émetteur de rayon laser (7).  a target, is a laser beam emitter (7). 3- Dispositif, selon la revendication 2, caractérisé en ce que l'émetteur de rayon laser comporte une tête optique génératrice, sur la chaussée (5), d'une ligne transversale continue (8) sur une largeur bien déterminée de  3- Device according to claim 2, characterized in that the laser beam emitter comprises an optical head generating, on the roadway (5), a continuous transverse line (8) over a well determined width of ladite chaussée.said roadway. 4- Dispositif, selon la revendication 2, caractérisé en ce que l'émetteur de rayon laser comporte une tête optique génératrice, sur la chaussée (5), d'une ligne transversale discontinue (9), constituée d'une pluralité de  4- Device according to claim 2, characterized in that the laser beam emitter comprises an optical head generating, on the roadway (5), a discontinuous transverse line (9), consisting of a plurality of points, sur une largeur bien déterminée de ladite chaussée.  points, over a well-defined width of said carriageway. 5- Dispositif, selon la revendication 4, caractérisé en ce qu'il comporte, en relation avec chaque point, ou groupe de points, sur une même  5- Device according to claim 4, characterized in that it comprises, in relation to each point, or group of points, on the same ligne longitudinale (10), un diffuseur de liant et/ou une vanne de distribu-  longitudinal line (10), a binder diffuser and / or a distribution valve tion de gravillons.tion of gravel. 6- Dispositif, selon la revendication 5, caractérisé en ce qu'il comporte autant d'émetteurs (4) de rayons laser que de points, ou groupes de points, en relation avec un nombre bien déterminé de diffuseurs de liant  6- Device according to claim 5, characterized in that it comprises as many emitters (4) of laser rays as points, or groups of points, in relation to a well determined number of binder diffusers et/ou de vannes de distribution de gravillons.  and / or gravel distribution valves. 7- Dispositif, selon l'une quelconque des revendications 2 à 6,  7- Device according to any one of claims 2 to 6, caractérisé en ce qu'il comporte un pupitre de commande, en relation avec un module électronique du type automate programmable ou analogue, apte à -5- actionner, en mode déphasé et sélectivement, en fonction de la largeur de la chaussée à recouvrir, et ce au fur et à mesure de l'avancement duvéhicule porteur (3), les diffuseurs de liant et/ou les vannes de distribution de gravillons, en coincidence avec les points, ou groupes de points, en correspondance avec les parties de la chaussée à recouvrir. 8Dispositif, selon la revendication 7, caractérisé en ce que lemodule électronique comporte un moyen apte à ne commander l'émission du rayon laser  characterized in that it comprises a control console, in relation to an electronic module of the programmable automaton type or the like, capable of operating, in phase shifted mode and selectively, as a function of the width of the roadway to be covered, and as the carrier vehicle (3) advances, the binder diffusers and / or the gravel distribution valves, coinciding with the points, or groups of points, in correspondence with the parts of the roadway cover. 8A device according to claim 7, characterized in that the electronic module comprises a means capable of not controlling the emission of the laser beam qu'à partir d'un vitesse du véhicule bien déterminée.  only from a well-determined vehicle speed. 9- Dispositif, selon la revendication 2, caractérisé en ce que le moyen  9- Device according to claim 2, characterized in that the means (4) est placé dans la zone du parebrise du véhicule porteur (3).  (4) is placed in the windscreen area of the carrier vehicle (3).
FR9802941A 1997-12-31 1998-03-06 PROCESS FOR THE OPERATION OF BINDER DIFFUSERS AND / OR GRAVILLE DISPENSING VALVES AND DEVICE FOR IMPLEMENTING SAME Expired - Fee Related FR2775699B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9802941A FR2775699B1 (en) 1998-03-06 1998-03-06 PROCESS FOR THE OPERATION OF BINDER DIFFUSERS AND / OR GRAVILLE DISPENSING VALVES AND DEVICE FOR IMPLEMENTING SAME
PCT/FR1998/002926 WO1999035336A1 (en) 1997-12-31 1998-12-31 Method for actuating pipe and front closure plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9802941A FR2775699B1 (en) 1998-03-06 1998-03-06 PROCESS FOR THE OPERATION OF BINDER DIFFUSERS AND / OR GRAVILLE DISPENSING VALVES AND DEVICE FOR IMPLEMENTING SAME

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FR2775699A1 true FR2775699A1 (en) 1999-09-10
FR2775699B1 FR2775699B1 (en) 2000-05-12

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808031A1 (en) * 2000-04-19 2001-10-26 C M T P Automatic control method, of tray angle in a tip-truck delivering gravel during road works, uses information on gravel, pouring requirements and speed of vehicle to control angle or tray or opening of doors
FR2811342A1 (en) * 2000-07-07 2002-01-11 C M T P Targeting assembly for gravel spreading apparatus includes cross pattern with LEDs to materialize the open/close status of valves and command keypad with pushbuttons and thumb sensors
FR2835545A1 (en) 2002-02-04 2003-08-08 Concept Travaux Publics Method of operating discharge outlets for gravel lorry, involves using video cameras to monitor operation of outlet trap doors in hopper
FR3035885A1 (en) * 2015-05-07 2016-11-11 Acmar ASSISTANCE SYSTEM FOR SELECTIVE ROAD SURFACE MAINTENANCE MEDIA SPREADING.
FR3049965A1 (en) * 2016-04-06 2017-10-13 Acmar ROAD SURFACE MAINTENANCE MEDIA REPELLER

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576336A1 (en) * 1985-01-22 1986-07-25 Secmair Sa Device for simultaneously spreading chippings and binder for the repair of roads
EP0404623A1 (en) * 1989-06-23 1990-12-27 Rincheval Societe Dite Device for repairing road surfaces, in particular for equipping tipper trucks for spreading binder and aggregate
FR2653456A1 (en) * 1989-10-25 1991-04-26 France Etat Method for continuous localised reprofiling of a covering or surface, especially of a roadway and machines for its implementation
US5584597A (en) * 1995-03-14 1996-12-17 Lemelson; Jerome Method and apparatus for road hole repair including preparation thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576336A1 (en) * 1985-01-22 1986-07-25 Secmair Sa Device for simultaneously spreading chippings and binder for the repair of roads
EP0404623A1 (en) * 1989-06-23 1990-12-27 Rincheval Societe Dite Device for repairing road surfaces, in particular for equipping tipper trucks for spreading binder and aggregate
FR2653456A1 (en) * 1989-10-25 1991-04-26 France Etat Method for continuous localised reprofiling of a covering or surface, especially of a roadway and machines for its implementation
US5584597A (en) * 1995-03-14 1996-12-17 Lemelson; Jerome Method and apparatus for road hole repair including preparation thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808031A1 (en) * 2000-04-19 2001-10-26 C M T P Automatic control method, of tray angle in a tip-truck delivering gravel during road works, uses information on gravel, pouring requirements and speed of vehicle to control angle or tray or opening of doors
FR2811342A1 (en) * 2000-07-07 2002-01-11 C M T P Targeting assembly for gravel spreading apparatus includes cross pattern with LEDs to materialize the open/close status of valves and command keypad with pushbuttons and thumb sensors
FR2835545A1 (en) 2002-02-04 2003-08-08 Concept Travaux Publics Method of operating discharge outlets for gravel lorry, involves using video cameras to monitor operation of outlet trap doors in hopper
FR3035885A1 (en) * 2015-05-07 2016-11-11 Acmar ASSISTANCE SYSTEM FOR SELECTIVE ROAD SURFACE MAINTENANCE MEDIA SPREADING.
FR3049965A1 (en) * 2016-04-06 2017-10-13 Acmar ROAD SURFACE MAINTENANCE MEDIA REPELLER

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FR2775699B1 (en) 2000-05-12

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