EP3433024B1 - Projection tool, especially for hazardous projection - Google Patents

Projection tool, especially for hazardous projection Download PDF

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Publication number
EP3433024B1
EP3433024B1 EP17713348.5A EP17713348A EP3433024B1 EP 3433024 B1 EP3433024 B1 EP 3433024B1 EP 17713348 A EP17713348 A EP 17713348A EP 3433024 B1 EP3433024 B1 EP 3433024B1
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EP
European Patent Office
Prior art keywords
projection
tool
operator
unit
reference axis
Prior art date
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EP17713348.5A
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German (de)
French (fr)
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EP3433024A1 (en
Inventor
Ronan D'HERVE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ortec Expansion SA
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Ortec Expansion SA
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Publication of EP3433024A1 publication Critical patent/EP3433024A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/082—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to a condition of the discharged jet or spray, e.g. to jet shape, spray pattern or droplet size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/08—Safety arrangements, e.g. safeties for inhibiting firing in a specified direction, e.g. at a friendly person or at a protected area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
    • F41B9/0087—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the intended use, e.g. for self-defence, law-enforcement, industrial use, military purposes

Definitions

  • the present invention relates to a projection tool, in particular with a dangerous projection, of solid, liquid and / or gaseous products.
  • the present invention can be applied to all sectors of activity (industry, service provision, leisure, etc.) where an operator uses a projection tool implementing a continuous or discontinuous projection (of solid, liquid or gaseous) and generating a dangerous projection for him and / or his environment.
  • This projection tool can in particular correspond to one of the following tools: a high-pressure water jet cleaning lance, a sandblasting or shot blasting lance, a supersonic compressed air jet (especially for cleaning of cracks in pavements), a dry ice lance, a torch, a heat gun, etc.
  • the danger of such a projection tool is related to the risk of bodily injury by an accidental projection of the operator against himself (loss of balance, poor control of a reaction of the projection tool, etc. ), or on an operator moving nearby (uncontrolled movement outside the area concerned by the work, ). To a lesser extent, dangerousness may also relate to the deterioration of goods or elements of the environment.
  • the projection tools are generally equipped with a direct-acting control (for example a mechanical valve on a trigger handle when in need of mobility or foot control in case of static work, .. .) or more often indirect action (closing of a power circuit by a control (electronic, electrical, pneumatic, ...)).
  • a direct-acting control for example a mechanical valve on a trigger handle when in need of mobility or foot control in case of static work, .. .
  • indirect action closing of a power circuit by a control (electronic, electrical, pneumatic, ...)).
  • a supervisor who authorizes the opening of the power circuit, by an action maintained on a control member.
  • the document FR2970190 A1 describes a water jet spray gun equipped with a device for shutting off the gun water supply when the water is directed to a non-washing zone.
  • the present invention aims to overcome the disadvantages mentioned above. It relates to a projection tool comprising at least one projection lance configured to project a product in a direction of projection and a trigger member adapted to be actuated manually by an operator, the projection tool being configured to trigger the projection of the product during actuation of the triggering member by the operator.
  • the projection of a product by the projection tool is made impossible by the protection device as soon as the projection direction of the projection tool, that is to say the direction by which the product is projected, comes out of a projection authorization beam.
  • the projection authorization beam with respect to a given direction in space (defined by said reference axis) presenting no risk of injury and / or deterioration, projection is allowed only when it is Safe for the operator and / or his environment.
  • this protection does not require the continuous intervention of a third person.
  • the projection authorization beam is adjustable.
  • the adjustment unit comprises a control member operable by an operator, and is configured to record, as a reference axis, the projection direction of the projection tool to a moment when an operator actuates the adjustment member.
  • the present invention also relates to a projection method, using a projection tool comprising at least one projection lance configured to project a product in a direction of projection and a trigger member adapted to be actuated manually by an operator , the projection tool being configured to trigger the projection of the product during actuation of the trigger member by the operator, the projection tool further comprising a control unit and a processing unit.
  • the figure 1 is a schematic perspective view of a projection tool carried by an operator.
  • the figure 2 is a block diagram of a particular embodiment of a protection device according to the invention.
  • FIGS. 3, 4 and 5 are schematic views, in perspective, of a projection tool carried by an operator, respectively in different positions of the projection tool.
  • the figure 6 is a schematic perspective view of a projection tool carried by an operator, to explain features of the invention.
  • the figure 7 is a schematic view, in perspective, of a projection tool illustrating successive positions of the operator carrying said projection tool.
  • the projection tool 1 illustrating the invention and shown schematically on the figure 1 is a projection projection tool may be dangerous, solid, liquid and / or gaseous, for example to treat or clean a surface.
  • This projection tool 1 is used by an operator OP represented schematically on the figure 1 , which carries the projection tool 1.
  • the present invention can be applied to all sectors of activity (industry, service provision, leisure, etc.) where an OP operator uses a projection tool 1 implementing a projection, continuous or discontinuous, capable of be dangerous for him and / or his environment.
  • This projection tool 1 may, in particular, correspond to one of the following tools: a high-pressure water jet cleaning lance, a sandblasting or shot blasting lance, a supersonic compressed air jet (in particularly for the cleaning of cracks in pavements of road pavements), a dry ice lance, a torch and / or a heat gun, ...
  • the projection tool 1 is configured, in the usual way, to project the product only, upon actuation of the trigger member 2 by the operator OP.
  • the projection tool 1 may be continuous projection or discontinuous projection.
  • said projection tool 1 further comprises a protection device 4.
  • This cutoff unit 6 can be any element, especially a mechanical element, making it possible to prevent the projection when it is triggered by the triggering element 2.
  • the projection of a product by the projection tool 1 is made impossible by the protection device 4 as soon as the projection direction L of the projection tool 1, that is to say the direction by which the product is projected out of said projection projection beam F.
  • the projection authorization beam F is defined around a reference axis R starting at a reference point P fixed on the projection tool 1. According to the invention, this axis of reference R has a given orientation in space.
  • the protection device 4 allows a projection only when is safe for the OP operator and / or his environment. In addition, this protection does not require the continuous intervention of a third person.
  • a dangerous projection is therefore automatically prevented when the projection direction L of the projection tool 1, for example the axis of a very high-pressure THP-type lance, comes out of a virtual security beam called a beam.
  • projection authorization F which is established around a reference axis R.
  • the reference axis R preferably corresponds to a preferred working (projection) direction.
  • the vertex P of the projection authorization beam F that is to say the starting point of the half-line representing the reference axis R, is defined on the projection tool 1 and is located near immediate release member 2, for example less than 10 centimeters, as shown in FIG. figure 6 .
  • the protection device 4 therefore forces the operator OP to constantly seek to be in the safety position behind the projection lance 3 so that the projection tool 1 can operate.
  • any sudden or rapid displacement of the projection tool 1 (for example due to a fall of the OP operator or a loss of control of the projection tool 1 due to the HP jet reaction), as shown in FIG. illustration on Figures 4 and 5 , is detected by the protection device 4 which then prevents the projection.
  • the operator OP can not hurt himself by for example projecting the product to a foot, as shown on the figure 5 .
  • the projection authorization beam F is adjustable.
  • the projection authorization beam F which starts from the point P on the projection tool 1, which is located near the trigger member 2, can have many shapes.
  • the monitoring unit 5 preferably comprises an electronic module 22 located near the triggering member 2, and is capable of controlling a direction oriented in space (reference axis R) and the F beam around this direction which is the projection permission limit.
  • the adjustment unit 11 comprises a control member that can be actuated by an operator OP, this adjustment member being the trigger member 2, and is configured to record, as reference axis R, the direction projection L of the projection tool 1 at a time when an operator OP actuates this adjustment member.
  • the operator or a supervisor thus saves a projection direction L in the space by orienting the projection tool 1, for example by selecting a setting mode, setting the projection tool 1 to position.
  • the operator or supervisor also sets the angular deviation ⁇ allowed to deviate from this reference axis R, in particular via successive pulses, for example at a pitch of 2 ° 5 "per pulse.
  • the adjustment unit 11 comprises an input unit 15, 16 enabling an operator OP to enter at least some of said characteristics intended to define the projection authorization beam F.
  • the protection device 4 thus makes it possible to link to the projection tool 1 a projection authorization beam F whose parameterization is that the spatial orientation is fixed and the aperture is constant.
  • the reference axis R (of the window) is the desired direction to orient the projection. Preferably, it originates from the fixed point P of a gyro sensor mounted on the projection tool 1 and for orientation of the projection direction L.
  • This reference axis (namely a half-line) is movable and can be move with the projection tool 1 at any point in the space, keeping a fixed orientation.
  • the protection device 4 automatically controls the projection prohibition outside the scope of this opening.
  • the projection authorization beam F forms on the wall 23 on which the projection takes place a projection zone Z (or window) whose shape depends on the shape of the projection authorization beam F and the angle between the reference axis R and a direction normal to the wall 23.
  • the operator OP moves laterally, as illustrated by an arrow G along the wall 23.
  • Two positions P1 and P2 are represented on this figure 7 .
  • a zone Z1, Z2 is treated by the projection tool 1.
  • the displacement of the treatment zone forms a strip B substantially rectangular and horizontal.
  • the projection tool 1 is portable, that is to say that it is carried by an operator OP, as shown in FIG. figure 1 especially.
  • the projection tool 1 may alternatively also be mounted, fixedly or removably, on a mobile machine, in particular on a rolling machine.
  • the protection device 4 can provide protection by allowing projection in a plurality (two, three, ...) of projection authorization beams, similar to the projection authorization beam. F supra, but having different reference axes and possibly different opening angles.
  • the protection device 4 makes it possible to secure the operator OP which uses the projection tool 1 with a dangerous projection of solid, liquid or gaseous products, by automatic prohibition of projection out of a projection authorization beam F , forming a window such as the base of a cone or a pyramid with five faces, whose vertex (centered or not) is located near the trigger member 2.

Description

La présente invention concerne un outil de projection, en particulier à projection dangereuse, de produits solides, liquides et/ou gazeux.The present invention relates to a projection tool, in particular with a dangerous projection, of solid, liquid and / or gaseous products.

La présente invention peut s'appliquer à tous les secteurs d'activité (industrie, prestation de service, loisirs,...) où un opérateur utilise un outil de projection mettant en œuvre une projection continue ou discontinue (de produits solides, liquides ou gazeux) et générant une projection dangereuse pour lui et/ou son environnement.The present invention can be applied to all sectors of activity (industry, service provision, leisure, etc.) where an operator uses a projection tool implementing a continuous or discontinuous projection (of solid, liquid or gaseous) and generating a dangerous projection for him and / or his environment.

Cet outil de projection peut notamment correspondre à l'un des outils suivants : une lance de nettoyage à jet d'eau à haute pression, une lance de sablage ou de grenaillage, une lance à jet d'air comprimé supersonique (en particulier pour le nettoyage de fissures dans des revêtements de chaussées routières), une lance de glace carbonique, un chalumeau, un pistolet thermique,...This projection tool can in particular correspond to one of the following tools: a high-pressure water jet cleaning lance, a sandblasting or shot blasting lance, a supersonic compressed air jet (especially for cleaning of cracks in pavements), a dry ice lance, a torch, a heat gun, etc.

Cet outil de projection comporte au moins :

  • une lance de projection configurée pour projeter un produit selon une direction de projection ; et
  • un organe de déclenchement apte à être actionné manuellement par un opérateur, pour déclencher la projection du produit.
This projection tool includes at least:
  • a projection lance configured to project a product in a projection direction; and
  • a trigger member operable manually by an operator, to trigger the projection of the product.

La dangerosité d'un tel outil de projection est liée aux risques de blessures corporelles par une projection accidentelle de l'opérateur contre lui-même (perte d'équilibre, mauvais contrôle d'une réaction de l'outil de projection,...), ou sur un opérateur évoluant à proximité (mouvement incontrôlé hors de la zone concernée par le travail,...). Dans une moindre mesure, la dangerosité peut également concerner la détérioration de biens ou d'éléments de l'environnement.The danger of such a projection tool is related to the risk of bodily injury by an accidental projection of the operator against himself (loss of balance, poor control of a reaction of the projection tool, etc. ), or on an operator moving nearby (uncontrolled movement outside the area concerned by the work, ...). To a lesser extent, dangerousness may also relate to the deterioration of goods or elements of the environment.

Pour réduire leur dangerosité, les outils de projection sont, généralement, munis d'une commande à action directe (par exemple une vanne mécanique sur gâchette en poignée en cas de besoin de mobilité ou en commande au pied en cas de travail statique,...) ou plus souvent à action indirecte (fermeture d'un circuit de puissance par un pilotage (électronique, électrique, pneumatique,...)). Parfois, la dangerosité élevée impose la présence d'un surveillant qui autorise l'ouverture du circuit de puissance, par une action maintenue sur un organe de commande.To reduce their dangerousness, the projection tools are generally equipped with a direct-acting control (for example a mechanical valve on a trigger handle when in need of mobility or foot control in case of static work, .. .) or more often indirect action (closing of a power circuit by a control (electronic, electrical, pneumatic, ...)). Sometimes high danger imposes the presence of a supervisor who authorizes the opening of the power circuit, by an action maintained on a control member.

Ces solutions usuelles destinées à réduire la dangerosité d'un outil de projection, ne sont pas complètement satisfaisantes, en raison notamment d'une efficacité réduite et/ou d'un manque d'autonomie de l'opérateur.These usual solutions intended to reduce the danger of a projection tool are not completely satisfactory, particularly because of reduced efficiency and / or lack of autonomy of the operator.

Le document FR2970190 A1 décrit un pistolet de lavage par jet d'eau muni d'un dispositif de coupure de l'alimentation en eau du pistolet lorsque l'eau est dirigée vers une zone de non lavage.The document FR2970190 A1 describes a water jet spray gun equipped with a device for shutting off the gun water supply when the water is directed to a non-washing zone.

La présente invention a pour objet de remédier aux inconvénients mentionnés ci-avant. Elle concerne un outil de projection comportant au moins une lance de projection configurée pour projeter un produit selon une direction de projection et un organe de déclenchement apte à être actionné manuellement par un opérateur, l'outil de projection étant configuré pour déclencher la projection du produit lors d'un actionnement de l'organe de déclenchement par l'opérateur.The present invention aims to overcome the disadvantages mentioned above. It relates to a projection tool comprising at least one projection lance configured to project a product in a direction of projection and a trigger member adapted to be actuated manually by an operator, the projection tool being configured to trigger the projection of the product during actuation of the triggering member by the operator.

Selon l'invention, ledit outil de projection comporte, de plus, un dispositif de protection qui comprend :

  • une unité de surveillance configurée pour surveiller la direction de projection de l'outil de projection par rapport à au moins un faisceau d'autorisation de projection, ledit faisceau d'autorisation de projection étant défini autour d'un axe de référence débutant à un point de référence fixé sur l'outil de projection, l'unité de surveillance étant configurée pour émettre un signal d'alerte dès et tant que la direction de projection est en dehors du faisceau d'autorisation de projection ;
  • une unité de coupure configurée pour empêcher une projection par l'outil de projection lors de l'actionnement de l'organe de déclenchement, dès et tant qu'un signal d'alerte est émis ;
  • une unité de réglage permettant à un opérateur de fournir des caractéristiques pour définir le faisceau d'autorisation de projection, et au moins ledit axe de référence, ledit axe de référence présentant une orientation donnée dans l'espace ; et
  • une unité de traitement configurée pour définir ledit faisceau d'autorisation de projection à partir desdites caractéristiques, ledit faisceau d'autorisation de projection étant utilisé par l'unité de surveillance, l'unité de réglage comprenant l'organe de déclenchement, ladite unité de réglage étant configurée pour enregistrer, comme axe de référence, la direction de projection de l'outil de projection à un instant où un opérateur actionne l'organe de déclenchement.
According to the invention, said projection tool further comprises a protection device which comprises:
  • a monitoring unit configured to monitor the projection direction of the projection tool with respect to at least one projection authorization beam, said projection authorization beam being defined around a reference axis starting at a point reference unit fixed on the projection tool, the monitoring unit being configured to emit an early warning signal and as long as the projection direction is outside the projection authorization beam;
  • a cutoff unit configured to prevent projection by the projection tool upon actuation of the trigger member, as long as a warning signal is issued;
  • an adjustment unit enabling an operator to provide characteristics for defining the projection authorization beam, and at least said reference axis, said reference axis having a given spatial orientation; and
  • a processing unit configured to define said projection authorization beam from said characteristics, said projection authorization beam being used by the monitoring unit, the adjustment unit comprising the trigger member, said unit of setting being configured to record, as a reference axis, the projection direction of the projection tool at a time when an operator actuates the trigger member.

Ainsi, grâce à l'invention, la projection d'un produit par l'outil de projection est rendue impossible par le dispositif de protection dès que la direction de projection de l'outil de projection, c'est-à-dire la direction par laquelle est projetée le produit, sort d'un faisceau d'autorisation de projection. Ainsi, en définissant le faisceau d'autorisation de projection par rapport à une direction donnée dans l'espace (définie par ledit axe de référence) ne présentant aucun risque de blessure et/ou de détérioration, on permet une projection uniquement lorsqu'elle est sans danger pour l'opérateur et/ou son environnement. De plus, cette protection ne nécessite pas l'intervention en continue d'une tierce personne.Thus, thanks to the invention, the projection of a product by the projection tool is made impossible by the protection device as soon as the projection direction of the projection tool, that is to say the direction by which the product is projected, comes out of a projection authorization beam. Thus, by defining the projection authorization beam with respect to a given direction in space (defined by said reference axis) presenting no risk of injury and / or deterioration, projection is allowed only when it is Safe for the operator and / or his environment. In addition, this protection does not require the continuous intervention of a third person.

Selon l'invention le faisceau d'autorisation de projection est réglable.According to the invention, the projection authorization beam is adjustable.

En outre, de façon avantageuse, l'unité de surveillance comprend :

  • au moins un capteur ; et
  • un module de traitement d'informations générées par ledit capteur.
In addition, advantageously, the monitoring unit comprises:
  • at least one sensor; and
  • an information processing module generated by said sensor.

De préférence, l'unité de surveillance comprend, comme capteur, au moins l'un des éléments suivants :

  • un gyroscope ;
  • un accéléromètre ; et
  • un compas.
Preferably, the monitoring unit comprises, as a sensor, at least one of the following elements:
  • a gyroscope;
  • an accelerometer; and
  • a compass.

Par ailleurs, selon l'invention, l'unité de réglage comprend un organe de réglage apte à être actionné par un opérateur, et elle est configurée pour enregistrer, comme axe de référence, la direction de projection de l'outil de projection à un instant où un opérateur actionne l'organe de réglage.Furthermore, according to the invention, the adjustment unit comprises a control member operable by an operator, and is configured to record, as a reference axis, the projection direction of the projection tool to a moment when an operator actuates the adjustment member.

En complément, l'unité de réglage comprend, avantageusement, une unité de saisie permettant à un opérateur de saisir au moins certaines desdites caractéristiques. De façon avantageuse, l'unité de saisie est :

  • soit montée sur l'outil de projection ;
  • soit déportée et configurée pour permettre une saisie à distance.
In addition, the adjustment unit advantageously comprises an input unit enabling an operator to enter at least some of said characteristics. Advantageously, the input unit is:
  • be mounted on the projection tool;
  • is remote and configured to allow remote entry.

Avantageusement, bien que non exclusivement, le faisceau d'autorisation de projection présente l'une des formes suivantes :

  • une forme conique ; et
  • une forme pyramidale présentant une pluralité de faces planes.
Advantageously, although not exclusively, the projection authorization beam has one of the following forms:
  • a conical shape; and
  • a pyramidal shape having a plurality of planar faces.

Par ailleurs, de façon avantageuse, l'outil de projection est portatif et/ou il est configuré pour projeter au moins l'un des produits suivants :

  • un produit gazeux ;
  • un produit liquide ; et
  • un produit solide.
Furthermore, advantageously, the projection tool is portable and / or it is configured to project at least one of the following products:
  • a gaseous product;
  • a liquid product; and
  • a solid product.

La présente invention concerne également un procédé de projection, à l'aide d'un outil de projection comportant au moins une lance de projection configurée pour projeter un produit selon une direction de projection et un organe de déclenchement apte à être actionné manuellement par un opérateur, l'outil de projection étant configuré pour déclencher la projection du produit lors de l'actionnement de l'organe de déclenchement par l'opérateur, l'outil de projection comprenant en outre une unité de réglage et une unité de traitement.The present invention also relates to a projection method, using a projection tool comprising at least one projection lance configured to project a product in a direction of projection and a trigger member adapted to be actuated manually by an operator , the projection tool being configured to trigger the projection of the product during actuation of the trigger member by the operator, the projection tool further comprising a control unit and a processing unit.

Selon l'invention, ledit procédé de projection comprend :

  • une étape de surveillance pour surveiller la direction de projection de l'outil de projection par rapport à au moins un faisceau d'autorisation de projection, ledit faisceau d'autorisation de projection étant défini autour d'un axe de référence débutant à un point de référence fixé sur l'outil de projection, l'étape de surveillance consistant à émettre un signal d'alerte dès et tant que la direction de projection est en dehors du faisceau d'autorisation de projection ;
  • une étape de coupure pour empêcher une projection par l'outil de projection lors de l'actionnement de l'organe de déclenchement, dès et tant qu'un signal d'alerte est émis ;
  • une étape de réglage, mise en œuvre par l'unité de réglage, permettant à un opérateur de fournir des caractéristiques pour définir le faisceau d'autorisation de projection, et au moins ledit axe de référence, ledit axe de référence présentant une orientation donnée dans l'espace; et
  • une étape de traitement, mise en œuvre par l'unité de traitement, consistant à définir ledit faisceau d'autorisation de projection à partir desdites caractéristiques, ledit faisceau d'autorisation de projection étant utilisé à l'étape de surveillance, l'étape de réglage comprenant l'enregistrement, comme axe de référence, de la direction de projection de l'outil de projection à un instant où un opérateur actionne l'organe de déclenchement.
According to the invention, said projection method comprises:
  • a monitoring step for monitoring the projection direction of the projection tool with respect to at least one projection authorization beam, said projection authorization beam being defined around a reference axis starting at a point of projection; reference set on the projection tool, the monitoring step of emitting a warning signal from as long as the projection direction is outside the projection authorization beam;
  • a cutting step to prevent projection by the projection tool when actuating the trigger member, as long as a warning signal is issued;
  • an adjustment step, carried out by the adjustment unit, enabling an operator to provide characteristics for defining the projection authorization beam, and at least said reference axis, said reference axis having a given orientation in space; and
  • a processing step, implemented by the processing unit, of defining said projection authorization beam from said characteristics, said projection authorization beam being used in the monitoring step, the step of setting comprising recording, as a reference axis, the projection direction of the projection tool at a time when an operator actuates the triggering member.

Les figures annexées feront bien comprendre comment l'invention peut être réalisée. Sur ces figures, des références identiques désignent des produits semblables.The appended figures will make it clear how the invention can be realized. In these figures, identical references designate similar products.

La figure 1 est une vue schématique, en perspective, d'un outil de projection porté par un opérateur.The figure 1 is a schematic perspective view of a projection tool carried by an operator.

La figure 2 est un schéma synoptique d'un mode de réalisation particulier d'un dispositif de protection conforme à l'invention.The figure 2 is a block diagram of a particular embodiment of a protection device according to the invention.

Les figures 3, 4 et 5 sont des vues schématiques, en perspective, d'un outil de projection porté par un opérateur, respectivement dans des positions différentes de l'outil de projection.The Figures 3, 4 and 5 are schematic views, in perspective, of a projection tool carried by an operator, respectively in different positions of the projection tool.

La figure 6 est une vue schématique, en perspective, d'un outil de projection porté par un opérateur, permettant d'expliquer des caractéristiques de l'invention.The figure 6 is a schematic perspective view of a projection tool carried by an operator, to explain features of the invention.

La figure 7 est une vue schématique, en perspective, d'un outil de projection illustrant des positions successives de l'opérateur portant ledit outil de projection.The figure 7 is a schematic view, in perspective, of a projection tool illustrating successive positions of the operator carrying said projection tool.

L'outil de projection 1 illustrant l'invention et représenté schématiquement sur la figure 1 est un outil de projection à projection susceptible d'être dangereuse, de produits solides, liquides et/ou gazeux, par exemple pour traiter ou nettoyer une surface. Cet outil de projection 1 est utilisé par un opérateur OP représenté schématiquement sur la figure 1, qui porte l'outil de projection 1.The projection tool 1 illustrating the invention and shown schematically on the figure 1 is a projection projection tool may be dangerous, solid, liquid and / or gaseous, for example to treat or clean a surface. This projection tool 1 is used by an operator OP represented schematically on the figure 1 , which carries the projection tool 1.

La présente invention peut s'appliquer à tous les secteurs d'activité (industrie, prestation de service, loisirs,...) où un opérateur OP utilise un outil de projection 1 mettant en œuvre une projection, continue ou discontinue, susceptible d'être dangereuse pour lui et/ou son environnement.The present invention can be applied to all sectors of activity (industry, service provision, leisure, etc.) where an OP operator uses a projection tool 1 implementing a projection, continuous or discontinuous, capable of be dangerous for him and / or his environment.

Cet outil de projection 1 peut, notamment, correspondre à l'un des outils suivants : une lance de nettoyage à jet d'eau à haute pression, une lance de sablage ou de grenaillage, une lance à jet d'air comprimé supersonique (en particulier pour le nettoyage de fissures dans des revêtements de chaussées routières), une lance de glace carbonique, un chalumeau et/ou un pistolet thermique,...This projection tool 1 may, in particular, correspond to one of the following tools: a high-pressure water jet cleaning lance, a sandblasting or shot blasting lance, a supersonic compressed air jet (in particularly for the cleaning of cracks in pavements of road pavements), a dry ice lance, a torch and / or a heat gun, ...

Cet outil de projection 1 comporte notamment, comme représenté sur la figure 1 :

  • un organe (ou poignée) de déclenchement 2 (ou de commande), tel qu'une gâchette ou une détente, qui est apte à être actionné manuellement par l'opérateur OP ; et
  • une lance de projection 3 configurée pour projeter un produit selon une direction de projection L, comme illustré par une flèche E. Pour ce faire, la lance de projection 3 est reliée à un réservoir (non représenté) de produit à projeter.
This projection tool 1 comprises in particular, as shown on the figure 1 :
  • a member (or handle) 2 trigger (or control), such as a trigger or trigger, which is adapted to be operated manually by the OP operator; and
  • a projection lance 3 configured to project a product in a projection direction L, as illustrated by an arrow E. To do this, the projection lance 3 is connected to a tank (not shown) of product to be sprayed.

Ce réservoir et tous les moyens usuels pour faire fonctionner l'outil de projection 1 sont connus et ne sont pas non décrits d'avantage dans la présente description.This reservoir and all the usual means for operating the projection tool 1 are known and are not described further in the present description.

L'outil de projection 1 est configuré, de façon usuelle, pour projeter du produit uniquement, lors de l'actionnement de l'organe de déclenchement 2 par l'opérateur OP.The projection tool 1 is configured, in the usual way, to project the product only, upon actuation of the trigger member 2 by the operator OP.

Dans le cadre de la présente invention, l'outil de projection 1 peut être à projection continue ou à projection discontinue.In the context of the present invention, the projection tool 1 may be continuous projection or discontinuous projection.

Selon l'invention, ledit outil de projection 1 comporte, de plus, un dispositif de protection 4.According to the invention, said projection tool 1 further comprises a protection device 4.

En outre, selon l'invention, ledit dispositif de protection 4 comporte, comme représenté sur la figure 2 :

  • une unité de surveillance 5 qui est configurée :
    • pour surveiller la direction de projection L de l'outil de projection 1 par rapport à au moins un faisceau d'autorisation de projection F ; et
    • pour émettre un signal d'alerte, dès que la direction de projection L se trouve en dehors du faisceau d'autorisation de projection F et tant que ladite direction de projection L reste en dehors dudit faisceau d'autorisation de projection F ; et
  • une unité de coupure 6 :
    • qui est reliée par une liaison 7 à l'unité de surveillance 5 afin de pouvoir recevoir un signal d'alerte émis par ce dernier ; et
    • qui est configurée pour empêcher une projection par l'outil de projection 1 lors de l'actionnement de l'organe de déclenchement 2, dès qu'un tel signal d'alerte est émis par l'unité de surveillance 5 et tant qu'un tel signal d'alerte est émis par ladite unité de surveillance 5.
In addition, according to the invention, said protection device 4 comprises, as shown in FIG. figure 2 :
  • a monitoring unit 5 which is configured:
    • to monitor the projection direction L of the projection tool 1 with respect to at least one projection authorization beam F; and
    • to emit an alert signal, as soon as the projection direction L is outside the projection authorization beam F and as long as said projection direction L remains outside said projection authorization beam F; and
  • a cutoff unit 6:
    • which is connected by a link 7 to the monitoring unit 5 in order to receive an alert signal issued by the latter; and
    • which is configured to prevent projection by the projection tool 1 upon actuation of the trigger member 2, as soon as such an alert signal is issued by the monitoring unit 5 and as long as a such warning signal is emitted by said monitoring unit 5.

Cette unité de coupure 6 peut être tout élément, notamment mécanique, permettant d'empêcher la projection lorsqu'elle est déclenchée par l'organe de déclenchement 2.This cutoff unit 6 can be any element, especially a mechanical element, making it possible to prevent the projection when it is triggered by the triggering element 2.

Ainsi, la projection d'un produit par l'outil de projection 1 est rendue impossible par le dispositif de protection 4 dès que la direction de projection L de l'outil de projection 1, c'est-à-dire la direction par laquelle est projetée le produit, sort dudit faisceau d'autorisation de projection F.Thus, the projection of a product by the projection tool 1 is made impossible by the protection device 4 as soon as the projection direction L of the projection tool 1, that is to say the direction by which the product is projected out of said projection projection beam F.

Dans l'exemple représenté sur la figure 1, l'outil de projection 1 comporte également, à titre d'illustration :

  • une crosse 8 qui est maintenue en appui contre l'épaule droite ED de l'opérateur OP qui est droitier dans cet exemple, lorsque ce dernier porte l'outil de projection 1 ;
  • une poignée 9 tenue par la main droite MD de l'opérateur OP, ladite poignée 9 étant positionnée de sorte que la main droite MD accède à l'organe de déclenchement 2 ; et
  • un garde-main latéral 10 tenu par la main gauche MG de l'opérateur OP.
In the example shown on the figure 1 , the projection tool 1 also comprises, by way of illustration:
  • a butt 8 which is held in abutment against the right shoulder ED of the operator OP which is right handed in this example, when the latter carries the projection tool 1;
  • a handle 9 held by the right hand MD of the operator OP, said handle 9 being positioned so that the right hand MD accesses the trigger member 2; and
  • a lateral handguard 10 held by the left hand MG OP operator.

De plus, selon l'invention, le faisceau d'autorisation de projection F est défini autour d'un axe de référence R débutant à un point de référence P fixé sur l'outil de projection 1. Selon l'invention, cet axe de référence R présente une orientation donnée dans l'espace.In addition, according to the invention, the projection authorization beam F is defined around a reference axis R starting at a reference point P fixed on the projection tool 1. According to the invention, this axis of reference R has a given orientation in space.

Ainsi, en définissant le faisceau d'autorisation de projection F par rapport à une direction (définie par ledit axe de référence R) ne présentant aucun risque de blessure et/ou de détérioration, le dispositif de protection 4 autorise une projection uniquement lorsqu'elle est sans danger pour l'opérateur OP et/ou son environnement. De plus, cette protection ne nécessite pas l'intervention en continue d'une tierce personne.Thus, by defining the projection authorization beam F with respect to a direction (defined by said reference axis R) presenting no risk of injury and / or deterioration, the protection device 4 allows a projection only when is safe for the OP operator and / or his environment. In addition, this protection does not require the continuous intervention of a third person.

Une projection dangereuse est donc automatiquement empêchée lorsque la direction de projection L de l'outil de projection 1, par exemple l'axe d'une lance à très haute pression de type THP, sort d'un faisceau virtuel de sécurité dit faisceau d'autorisation de projection F, qui est établi autour d'un axe de référence R. L'axe de référence R correspond, de préférence, à une direction de travail (de projection) privilégiée.A dangerous projection is therefore automatically prevented when the projection direction L of the projection tool 1, for example the axis of a very high-pressure THP-type lance, comes out of a virtual security beam called a beam. projection authorization F, which is established around a reference axis R. The reference axis R preferably corresponds to a preferred working (projection) direction.

Le sommet P du faisceau d'autorisation de projection F, c'est-à-dire le point de départ de la demi-droite représentant l'axe de référence R, est défini sur l'outil de projection 1 et est situé à proximité immédiate de l'organe de déclenchement 2, par exemple à moins de 10 centimètres, comme représenté sur la figure 6.The vertex P of the projection authorization beam F, that is to say the starting point of the half-line representing the reference axis R, is defined on the projection tool 1 and is located near immediate release member 2, for example less than 10 centimeters, as shown in FIG. figure 6 .

Le dispositif de protection 4 oblige donc l'opérateur OP à chercher en permanence à se placer en position de sécurité derrière la lance de projection 3 pour que l'outil de projection 1 puisse fonctionner.The protection device 4 therefore forces the operator OP to constantly seek to be in the safety position behind the projection lance 3 so that the projection tool 1 can operate.

Tout déplacement brutal ou rapide de l'outil de projection 1 (suite par exemple à une chute de l'opérateur OP ou à une perte de contrôle de l'outil de projection 1 due à la réaction HP du jet), comme représenté à titre d'illustration sur les figures 4 et 5, est détecté par le dispositif de protection 4 qui empêche alors la projection. Ainsi, l'opérateur OP ne peut pas se blesser en projetant par exemple le produit vers un pied, comme montré sur la figure 5.Any sudden or rapid displacement of the projection tool 1 (for example due to a fall of the OP operator or a loss of control of the projection tool 1 due to the HP jet reaction), as shown in FIG. illustration on Figures 4 and 5 , is detected by the protection device 4 which then prevents the projection. Thus, the operator OP can not hurt himself by for example projecting the product to a foot, as shown on the figure 5 .

Selon l'invention, le faisceau d'autorisation de projection F est réglable.According to the invention, the projection authorization beam F is adjustable.

Le dispositif de protection 4 comporte de plus, comme représenté sur la figure 2 :

  • une unité de réglage 11 permettant à un opérateur OP de fournir des caractéristiques pour définir le faisceau d'autorisation de projection F, et au moins ledit axe de référence R ; et
  • une unité de traitement 12 qui est reliée par l'intermédiaire d'une liaison 13 à l'unité de réglage 11 et qui est configurée pour définir ledit faisceau d'autorisation de projection F au moins à partir des caractéristiques, et notamment de l'axe de référence R reçue via l'unité de réglage 11, et éventuellement à partir de caractéristiques prédéterminées et enregistrées. Le faisceau d'autorisation de projection F ainsi défini est transmis à l'unité de surveillance 5 via une liaison 14, qui l'utilise comme indiqué ci-dessus.
The protective device 4 further comprises, as shown in the figure 2 :
  • an adjustment unit 11 enabling an OP operator to provide characteristics for defining the projection authorization beam F, and at least said reference axis R; and
  • a processing unit 12 which is connected via a link 13 to the control unit 11 and which is configured to define said projection authorization beam F at least from the characteristics, and in particular from the reference axis R received via the adjustment unit 11, and possibly from predetermined and recorded characteristics. The projection authorization beam F thus defined is transmitted to the monitoring unit 5 via a link 14, which uses it as indicated above.

Le faisceau d'autorisation de projection F qui part du point P sur l'outil de projection 1, qui est situé près de l'organe de déclenchement 2, peut présenter de nombreuses formes.The projection authorization beam F which starts from the point P on the projection tool 1, which is located near the trigger member 2, can have many shapes.

À titre d'illustration, le faisceau d'autorisation de projection F peut être :

  • un cône de révolution, comme représenté sur les figures, c'est-à-dire avec la direction de l'axe de référence R comme hauteur et le point P comme sommet. La génératrice du cône et la hauteur forment un angle d'ouverture α (figure 3). Dans cet exemple, on peut régler la direction de l'axe de référence R et/ou l'angle d'ouverture α ;
  • de forme pyramidale avec une direction dans l'espace, définie par l'axe de référence R, et un premier écart angulaire dans le plan vertical et un second écart angulaire dans le plan horizontal.
By way of illustration, the projection authorization beam F may be:
  • a cone of revolution, as shown in the figures, that is to say with the direction of the reference axis R as height and point P as the vertex. The generator of the cone and the height form an angle of opening α ( figure 3 ). In this example, it is possible to adjust the direction of the reference axis R and / or the opening angle α;
  • pyramidal shape with a direction in space, defined by the reference axis R, and a first angular difference in the vertical plane and a second angular difference in the horizontal plane.

Par ailleurs, l'unité de surveillance 5, comporte, de préférence, un module électronique 22 situé près de l'organe de déclenchement 2, et elle est capable de contrôler une direction orientée dans l'espace (axe de référence R) et le faisceau F autour de cette direction qui est la limite d'autorisation de projection.Furthermore, the monitoring unit 5 preferably comprises an electronic module 22 located near the triggering member 2, and is capable of controlling a direction oriented in space (reference axis R) and the F beam around this direction which is the projection permission limit.

Pour ce faire, l'unité de surveillance 5 comprend :

  • un ensemble 17 de capteurs C, comprenant au moins un capteur C. Cet ensemble 17 peut être un module contenant un mini capteur intégrant un gyroscope, un accéléromètre (et/ou un compas) ; et
  • un module de traitement 18 relié par l'intermédiaire d'une liaison 19 à l'ensemble 17 et configuré pour traiter les informations générées par ledit ou lesdits capteurs C.
To do this, the monitoring unit 5 comprises:
  • a set 17 of sensors C, comprising at least one sensor C. This set 17 may be a module containing a mini-sensor integrating a gyroscope, an accelerometer (and / or a compass); and
  • a processing module 18 connected via a link 19 to the assembly 17 and configured to process the information generated by said one or more sensors C.

Par ailleurs, l'unité de réglage 11 comprend un organe de réglage apte à être actionné par un opérateur OP, cet organe de réglage étant l'organe de déclenchement 2, et elle est configurée pour enregistrer, comme axe de référence R, la direction de projection L de l'outil de projection 1 à un instant où un opérateur OP actionne cet organe de réglage.Furthermore, the adjustment unit 11 comprises a control member that can be actuated by an operator OP, this adjustment member being the trigger member 2, and is configured to record, as reference axis R, the direction projection L of the projection tool 1 at a time when an operator OP actuates this adjustment member.

L'opérateur ou un surveillant enregistre ainsi une direction de projection L dans l'espace en orientant l'outil de projection 1, via par exemple une sélection d'un mode de réglage, une mise en position de l'outil de projection 1 pour indiquer l'axe de référence R (ou axe de travail) et une impulsion de contact électrique pour valider la direction de cette axe de référence.The operator or a supervisor thus saves a projection direction L in the space by orienting the projection tool 1, for example by selecting a setting mode, setting the projection tool 1 to position. indicate the reference axis R (or working axis) and an electrical contact pulse to validate the direction of this reference axis.

L'opérateur ou le surveillant paramètre également l'écart angulaire α autorisé pour s'écarter de cet axe de référence R, notamment via des impulsions successives, par exemple au pas de 2°5" d'angle par impulsion.The operator or supervisor also sets the angular deviation α allowed to deviate from this reference axis R, in particular via successive pulses, for example at a pitch of 2 ° 5 "per pulse.

En complément, l'unité de réglage 11 comprend une unité de saisie 15, 16 permettant à un opérateur OP de saisir au moins certaines desdites caractéristiques destinées à définir le faisceau d'autorisation de projection F.In addition, the adjustment unit 11 comprises an input unit 15, 16 enabling an operator OP to enter at least some of said characteristics intended to define the projection authorization beam F.

L'unité de saisie peut être :

  • une unité de saisie 15, par exemple un mini clavier, qui est directement montée sur l'outil de projection 1 ; ou
  • une unité de saisie 16 qui est déportée et configurée pour permettre une saisie à distance depuis un calculateur à distance (micro-ordinateur ou smartphone avec application). Dans ce cas, le mode de communication est filaire ou radio, et les données de transmission sont de préférence codées pour sécuriser l'échange.
The input unit can be:
  • an input unit 15, for example a mini keyboard, which is directly mounted on the projection tool 1; or
  • an input unit 16 which is remote and configured to allow remote input from a remote computer (microcomputer or smartphone with application). In this case, the communication mode is wired or radio, and the transmission data are preferably coded to secure the exchange.

Le dispositif de protection 4 permet ainsi de lier à l'outil de projection 1 un faisceau d'autorisation de projection F dont, après paramétrage, l'orientation spatiale est fixe et l'ouverture est constante.The protection device 4 thus makes it possible to link to the projection tool 1 a projection authorization beam F whose parameterization is that the spatial orientation is fixed and the aperture is constant.

L'axe de référence R (de la fenêtre) est la direction souhaitée pour orienter la projection. De préférence, il a pour origine le point fixe P d'un capteur gyroscopique monté sur l'outil de projection 1 et pour orientation la direction de projection L. Cet axe de référence (à savoir une demi-droite) est mobile et peut se déplacer avec l'outil de projection 1 en tout point de l'espace, en conservant une orientation fixe.The reference axis R (of the window) is the desired direction to orient the projection. Preferably, it originates from the fixed point P of a gyro sensor mounted on the projection tool 1 and for orientation of the projection direction L. This reference axis (namely a half-line) is movable and can be move with the projection tool 1 at any point in the space, keeping a fixed orientation.

Le dispositif de protection 4 contrôle automatiquement l'interdiction de projection hors du cadre de cette ouverture.The protection device 4 automatically controls the projection prohibition outside the scope of this opening.

Comme représenté notamment sur la figure 6, le faisceau d'autorisation de projection F forme sur le mur 23 sur lequel a lieu la projection une zone Z (ou fenêtre) de projection dont la forme dépend de la forme du faisceau d'autorisation de projection F et de l'angle entre l'axe de référence R et une direction normale au mur 23.As shown in particular on the figure 6 , the projection authorization beam F forms on the wall 23 on which the projection takes place a projection zone Z (or window) whose shape depends on the shape of the projection authorization beam F and the angle between the reference axis R and a direction normal to the wall 23.

L'orientation spatiale de la fenêtre, ainsi que sa forme et sa dimension sont ajustables à la demande. À titre d'illustration :

  • pour une forme conique du faisceau d'autorisation de projection F, la fenêtre est ronde ou elliptique. Dans l'exemple de la figure 6, la zone Z (ou fenêtre) est ronde, l'axe de référence R étant sensiblement orthogonal au mur 23. Sur cette figure 6, on a de plus représenté un point A de projection (à l'intérieur de la zone Z), où est projeté le produit sur le mur 23 pour la position considérée de l'outil de projection 1 ; et
  • pour un faisceau d'autorisation de projection F de forme pyramidale, la fenêtre est carrée ou rectangulaire.
The spatial orientation of the window, as well as its shape and size are adjustable on demand. For illustration :
  • for a conical shape of the projection authorization beam F, the window is round or elliptical. In the example of the figure 6 the zone Z (or window) is round, the reference axis R being substantially orthogonal to the wall 23. figure 6 , there is further represented a projection point A (inside the zone Z), where the product is projected on the wall 23 for the considered position of the projection tool 1; and
  • for a projection authorization beam F of pyramidal shape, the window is square or rectangular.

Dans l'exemple de la figure 7, l'opérateur OP se déplace latéralement, comme illustré par une flèche G le long du mur 23. Deux positions P1 et P2 sont représentées sur cette figure 7. Pour chacune de ces positions P1 et P2, une zone Z1, Z2 est traitée par l'outil de projection 1.In the example of the figure 7 , the operator OP moves laterally, as illustrated by an arrow G along the wall 23. Two positions P1 and P2 are represented on this figure 7 . For each of these positions P1 and P2, a zone Z1, Z2 is treated by the projection tool 1.

En se déplaçant à la même distance du mur 20, avec un déplacement horizontal du l'outil de projection 1 dans un plan vertical parallèle à la surface de travail (plan du mur 23), le déplacement de la zone de traitement forme une bande B sensiblement rectangulaire et horizontale.By moving at the same distance from the wall 20, with a horizontal displacement of the projection tool 1 in a vertical plane parallel to the working surface (wall plane 23), the displacement of the treatment zone forms a strip B substantially rectangular and horizontal.

Bien entendu si l'opérateur OP s'écarte du mur 23 pour une même position latérale, la zone Z augmente et donc la surface de la zone de traitement augmente, et inversement s'il s'approche du mur 23.Of course, if the operator OP deviates from the wall 23 for the same lateral position, the zone Z increases and therefore the surface of the treatment zone increases, and conversely if it approaches the wall 23.

Dans un monde de réalisation préféré, l'outil de projection 1 est portatif, c'est-à-dire qu'il est porté par un opérateur OP, comme représenté sur la figure 1 notamment.In a preferred embodiment world, the projection tool 1 is portable, that is to say that it is carried by an operator OP, as shown in FIG. figure 1 especially.

Toutefois, dans le cadre de la présente invention, l'outil de projection 1 peut, en variante, également être monté, de façon fixe ou de façon amovible, sur un engin mobile, en particulier sur un engin roulant.However, in the context of the present invention, the projection tool 1 may alternatively also be mounted, fixedly or removably, on a mobile machine, in particular on a rolling machine.

Par ailleurs, dans une variante de réalisation, le dispositif de protection 4 peut réaliser une protection en autorisant la projection dans une pluralité (deux, trois, ...) de faisceaux d'autorisation de projection, similaires au faisceau d'autorisation de projection F précité, mais présentant des axes de référence différents et éventuellement des angles d'ouverture différents.Furthermore, in an alternative embodiment, the protection device 4 can provide protection by allowing projection in a plurality (two, three, ...) of projection authorization beams, similar to the projection authorization beam. F supra, but having different reference axes and possibly different opening angles.

Le dispositif de protection 4, tel que décrit ci-dessus, met en œuvre les étapes successives suivantes d'un procédé de protection :

  • une étape de surveillance configurée pour surveiller la direction de projection L de l'outil de projection 1 par rapport à au moins un faisceau d'autorisation de projection F, ledit faisceau d'autorisation de projection F étant défini autour d'un axe de référence R débutant à un point de référence P fixé sur l'outil de projection 1, ledit axe de référence R présentant une orientation donnée dans l'espace, l'unité de surveillance 5 étant configurée pour émettre un signal d'alerte dès et tant que l'axe de référence R est en dehors du faisceau d'autorisation de projection F ; et
  • une étape de coupure configurée pour empêcher une projection par l'outil de projection 1 lors de l'actionnement de l'organe de déclenchement 2, dès et tant qu'un signal d'alerte est émis.
The protection device 4, as described above, implements the following successive steps of a protection method:
  • a monitoring step configured to monitor the projection direction L of the projection tool 1 with respect to at least one projection authorization beam F, said projection authorization beam F being defined around a reference axis R starting at a reference point P fixed on the projection tool 1, said reference axis R having a given orientation in space, the monitoring unit 5 being configured to emit a warning signal from and as long as the reference axis R is outside the projection authorization beam F; and
  • a cutting step configured to prevent projection by the projection tool 1 when actuating the trigger member 2, as long as an alert signal is issued.

L'outil de projection 1, pourvu du dispositif de protection 4 tel que décrit ci-dessus, présente ainsi de très nombreux avantages. En particulier, le dispositif de protection 4 permet de sécuriser l'opérateur OP qui utilise l'outil de projection 1 à projection dangereuse de produits solide, liquide ou gazeux, par interdiction automatique de projection hors d'un faisceau d'autorisation de projection F, formant une fenêtre telle que la base d'un cône ou d'une pyramide à cinq faces, dont le sommet (centré ou non) est situé à proximité de l'organe de déclenchement 2.The projection tool 1, provided with the protection device 4 as described above, thus has many advantages. In particular, the protection device 4 makes it possible to secure the operator OP which uses the projection tool 1 with a dangerous projection of solid, liquid or gaseous products, by automatic prohibition of projection out of a projection authorization beam F , forming a window such as the base of a cone or a pyramid with five faces, whose vertex (centered or not) is located near the trigger member 2.

Claims (10)

  1. Projection tool comprising at least one projection lance (3) configured to project a product according to a projection direction (L) and a triggering member (2) capable of being actuated manually by an operator (OP), the projection tool (1) being configured to trigger the projection of the product during an actuation of the triggering member (2) by the operator (OP),
    the projection tool comprising, in addition, a projection device (4) which comprises:
    - a surveillance unit (5) configured to monitor the projection direction (L) of the projection tool (1) with respect to at least a projection-enabling beam (F), said projection-enabling beam (F) being defined about a reference axis (R) starting at a reference point (P) fixed on the projection tool (1), the surveillance unit (5) being configured to emit an alert signal as soon as the projection direction (L) is outside of the projection-enabling beam (F);
    - a cut-off unit (6) configured to prevent a projection by the projection tool (1) during the actuation of the triggering member (2), as soon as an alert signal is emitted;
    characterised in that the protective device (4) in addition comprises:
    - an adjustment unit (11) making it possible for an operator (OP) to provide features to define the projection-enabling beam (F) and at least said reference axis (R), said reference axis (R) having a given orientation in the space; and
    - a processing unit (12) configured to define said projection-enabling beam (F) from said features, said projection-enabling beam (F) being used by the surveillance unit (5),
    the adjustment unit (11) comprising the triggering member (2), said adjustment unit (11) being configured to record, as reference axis (R), the projection direction (L) of the projection tool (1) at an instant where an operator (OP) actuates the triggering member (2).
  2. Projection tool according to claim 1,
    characterised in that the surveillance unit (5) comprises:
    - at least one sensor (C); and
    - a module (18) for processing information generated by said sensor (C).
  3. Projection tool according to claim 2,
    characterised in that the surveillance unit (5) comprises, as sensor (C), at least one of the following elements:
    - a gyroscope;
    - an accelerometer; and
    - a compass.
  4. Projection tool according to any one of claims 1 to 3,
    characterised in that the adjustment unit (11) comprises an input unit (15, 16) making it possible for an operator (OP) to input at least some of said features.
  5. Projection tool according to claim 4,
    characterised in that the input unit (15) is mounted on the projection tool (1).
  6. Projection tool according to claim 4,
    characterised in that the input unit (16) is deported and is configured to make it possible for a remote inputting.
  7. Projection tool according to any one of the preceding claims,
    characterised in that the projection-enabling beam (F) has one of the following shapes:
    - a conic shape; and
    - a pyramid shape having a plurality of flat faces.
  8. Projection tool according to any one of the preceding claims,
    characterised in that it is configured to project at least one of the following products:
    - a gaseous product;
    - a liquid product; and
    - a solid product.
  9. Projection tool according to any one of the preceding claims,
    characterised in that it is portable.
  10. Projection method, using a projection tool (1) comprising at least a projection lance (3) configured to project a product according to a projection direction (L) and a triggering member (2) capable of being actuated manually by an operator (OP), the projection tool (1) being configured to trigger the projection of the product during the actuation of the triggering member (2) by the operator (OP), the projection tool (1) further comprising an adjustment unit (11) and a processing unit (12), said method comprising:
    - a surveillance step to monitor the projection direction (L) of the projection tool (1) with respect to at least one projection-enabling beam (F), said projection-enabling beam (F) being defined about a reference axis (R) starting at a reference point (P) fixed on the projection tool (1), the surveillance step consisting of emitting an alert signal as soon as the projection direction (L) is outside of the projection-enabling beam (F); and
    - a cut-off step to prevent a projection by the projection tool (1) during the actuation of the triggering member (2), as soon as an alert signal is emitted;
    characterised in that in addition it comprises:
    - an adjustment step, implemented by the adjustment unit (11), making it possible for an operator (OP) to provide features to define the projection-enabling beam (F) and at least said reference axis (R), said reference axis (R) having a given orientation in space; and
    - a processing step, implemented by the processing unit(12), consisting of defining said projection-enabling beam (F) from said features, said projection-enabling beam (F) being used in the surveillance step, the adjustment step comprising the recording, as reference axis (R), of the projection direction (L) of the projection tool (1) at an instant where an operator (OP) actuates the triggering member (2).
EP17713348.5A 2016-03-22 2017-03-03 Projection tool, especially for hazardous projection Active EP3433024B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1652452A FR3049199A1 (en) 2016-03-22 2016-03-22 PROJECTION TOOL, IN PARTICULAR TO HAZARDOUS PROJECTION.
PCT/FR2017/050486 WO2017162950A1 (en) 2016-03-22 2017-03-03 Spraying tool, in particular for hazardous spraying

Publications (2)

Publication Number Publication Date
EP3433024A1 EP3433024A1 (en) 2019-01-30
EP3433024B1 true EP3433024B1 (en) 2019-11-20

Family

ID=56087372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17713348.5A Active EP3433024B1 (en) 2016-03-22 2017-03-03 Projection tool, especially for hazardous projection

Country Status (3)

Country Link
EP (1) EP3433024B1 (en)
FR (1) FR3049199A1 (en)
WO (1) WO2017162950A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3061666B1 (en) * 2017-01-10 2022-08-05 Exel Ind ALARM SYSTEM, ASSEMBLY COMPRISING A SPRAYING DEVICE AND SUCH AN ALARM SYSTEM AND PNEUMATIC SPRAYING METHOD

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195336A5 (en) * 1972-08-03 1974-03-01 Dassault Electronique
JPH01179899A (en) * 1987-12-31 1989-07-17 Kansai Seiki Seisakusho:Kk Safety device for gun shooting for business use
FR2712675B1 (en) * 1993-11-18 1996-02-02 Giat Ind Sa Method and system for prohibiting the firing of a small, medium or large caliber weapon, in particular with a straight trajectory, outside at least one ground or aerial surveillance zone.
FR2713961A1 (en) * 1993-12-22 1995-06-23 Rivard Ets Device for angularly limiting the action of a fluid jet leaving a spraying device.
US7182271B2 (en) * 2004-11-12 2007-02-27 Spraying Systems Co. Apparatus and method for detecting liquid flow from a spray device
US7962243B2 (en) * 2007-12-19 2011-06-14 Foster-Miller, Inc. Weapon robot with situational awareness
FR2970190B1 (en) * 2011-01-10 2013-02-15 Montanier Soc WATERJET SURFACE WASHING SYSTEM WITH WATER SUPPLY BREAKAGE WHEN THE WATER JET IS DIRECTED TO AN UN DESIRED ZONE
DE102013111644A1 (en) * 2013-10-22 2015-04-23 Krauss-Maffei Wegmann Gmbh & Co. Kg Method for controlling a directable weapon of a vehicle during firing exercises

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
EP3433024A1 (en) 2019-01-30
WO2017162950A1 (en) 2017-09-28
FR3049199A1 (en) 2017-09-29

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