EP3433024A1 - Spraying tool, in particular for hazardous spraying - Google Patents

Spraying tool, in particular for hazardous spraying

Info

Publication number
EP3433024A1
EP3433024A1 EP17713348.5A EP17713348A EP3433024A1 EP 3433024 A1 EP3433024 A1 EP 3433024A1 EP 17713348 A EP17713348 A EP 17713348A EP 3433024 A1 EP3433024 A1 EP 3433024A1
Authority
EP
European Patent Office
Prior art keywords
projection
tool
authorization
operator
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17713348.5A
Other languages
German (de)
French (fr)
Other versions
EP3433024B1 (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
Original Assignee
Ortec Expansion SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ortec Expansion SA filed Critical Ortec Expansion SA
Publication of EP3433024A1 publication Critical patent/EP3433024A1/en
Application granted granted Critical
Publication of EP3433024B1 publication Critical patent/EP3433024B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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.
  • This projection tool includes at least:
  • a projection lance configured to project a product in a projection direction
  • a trigger member adapted to be actuated manually by an operator, to trigger the projection of the product.
  • 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 present invention aims to overcome these disadvantages. 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.
  • 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 reference point fixed on the projection tool, said reference axis having a given orientation in space, the monitoring unit being configured to emit an alert signal as soon as and the projection direction is outside the projection authorization beam;
  • a cutoff unit configured to prevent projection by the projection tool when actuating the trigger member, as long as an alert signal is issued.
  • 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 through 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 predefined and can not be modified, while in a preferred embodiment, the projection authorization beam is adjustable.
  • the protection device further comprises:
  • an adjustment unit enabling an operator to provide characteristics for defining the projection authorization beam, and at least said reference axis; and a processing unit for defining said projection authorization beam from said characteristics, said projection authorization beam being used by the monitoring unit.
  • the monitoring unit comprises:
  • the monitoring unit comprises, as a sensor, at least one of the following elements:
  • 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 at a given instant. where an operator actuates the adjustment member.
  • the adjustment unit advantageously comprises an input unit enabling an operator to enter at least some of said characteristics.
  • the input unit is:
  • the projection authorization beam has one of the following forms:
  • the projection tool is portable and / or it is configured to project at least one of the following products:
  • 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 the actuation of the trigger member by the operator.
  • 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 reference plane fixed on the projection tool, said reference axis having a given orientation in space, the monitoring step being configured to emit an alert signal as soon as and the projection direction is outside the beam projection authorization;
  • said projection method further comprises:
  • an adjustment step enabling an operator to provide characteristics for defining the projection authorization beam, and at least said reference axis; and a processing step for defining said projection authorization beam from said characteristics, said projection authorization beam being used in the monitoring stage.
  • Figure 1 is a schematic perspective view of a projection tool carried by an operator.
  • Figure 2 is a block diagram of a particular embodiment of a protection device according to the invention.
  • 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.
  • Figure 6 is a schematic perspective view of a projection tool carried by an operator, to explain features of the invention.
  • Figure 7 is a schematic perspective view of a projection tool illustrating successive positions of the operator carrying said projection tool.
  • the projection tool 1 illustrating the invention and shown schematically in 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 shown diagrammatically in FIG. 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, ...
  • This projection tool 1 comprises in particular, as shown in FIG.
  • 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 direction of projection L, as illustrated by an arrow E.
  • the projection lance 3 is connected to a tank (not shown) of product to be sprayed.
  • 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.
  • said protection device 4 comprises, as represented in FIG. 2:
  • a monitoring unit 5 which is configured:
  • 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 tool 1 also comprises, by way of illustration:
  • a lateral handguard 10 held by the left hand MG of the operator OP.
  • 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 reference axis 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 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. 4 and 5, is detected by the protection device 4 which then prevents the projection.
  • the OP operator can not hurt himself by for example projecting the product to a foot, as shown in FIG.
  • the projection authorization beam F is predefined and fixed (for example at the time of manufacture of the projection tool 1) and can not be modified.
  • the projection authorization beam F is adjustable.
  • the protection device 4 further comprises, as shown in FIG. 2:
  • a setting unit 1 1 enabling an operator OP to provide characteristics for defining the projection authorization beam F, and at least said reference axis R;
  • 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 especially from the reference axis R received via the adjustment unit 1 1, 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.
  • 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 projection authorization beam F may be:
  • 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 monitoring unit 5 comprises:
  • 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.
  • the adjustment unit 1 1 comprises a control member that can be actuated by an operator OP, for example the trigger member 2, and is configured to record, as reference axis R, the projection direction 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 allowed angular deviation 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 1 1 comprises an input unit 15, 16 allowing an operator OP to enter at least some of said characteristics intended to define the projection authorization beam F.
  • the input unit can be:
  • an input unit 15 for example a mini keyboard, which is directly mounted on the projection tool 1;
  • an input unit 16 which is remote and configured to enable remote input from a remote computer (microcomputer or smartphone with application).
  • a remote computer microcomputer or smartphone with application.
  • the communication mode is wired or radio, and the transmission data are preferably coded to secure the exchange.
  • 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 window is round or elliptical.
  • the zone Z (or window) is round, the reference axis R being substantially orthogonal to the wall 23.
  • the window is square or rectangular.
  • the operator OP moves laterally, as illustrated by an arrow G along the wall 23.
  • Two positions P1 and P2 are represented in this FIG. 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 Figure 1 in particular.
  • 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 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 an axis of projection, reference 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 an early warning signal and that the reference axis R is outside the projection authorization beam F; and
  • a cutoff step configured to prevent projection by the projection tool 1 when actuating the trigger member 2, as long as a warning signal is issued.
  • 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.

Abstract

The spraying tool (1) comprises a spray nozzle for spraying a product in a spraying direction (L) and a trigger member capable of being actuated manually by an operator (OP) in order to trigger the spraying, the spraying tool (1) further comprising a protection device that comprises a monitoring unit for monitoring the spraying direction (L) of the spraying tool (1) relative to an authorised spraying beam (F) defined about a reference axis (R) that starts at a fixed reference point (P) on the spraying tool (1), the reference axis (R) having a given orientation in space, the monitoring unit being configured to emit a warning signal as soon as and for as long as the spraying direction (L) is outside the authorised spraying beam (F), the spraying tool (1) further comprising a cutoff unit for preventing the spraying tool (1) from spraying when the trigger member is actuated, as soon as and for as long as a warning signal is emitted.

Description

Outil de projection, en particulier à projection dangereuse  Projection tool, especially with a dangerous projection
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 :  This projection tool includes at least:
- une lance de projection configurée pour projeter un produit selon une direction de projection ; et a projection lance configured to project a product in a projection direction; and
- un organe de déclenchement apte à être actionné manuellement par un opérateur, pour déclencher la projection du produit.  - A trigger member adapted to be actuated 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.
La présente invention a pour objet de remédier à ces inconvénients. 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 these disadvantages. 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 :  According to the invention, said projection tool further comprises a protection device which comprises:
- 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, ledit axe de référence présentant une orientation donnée dans l'espace, 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 ; et  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 reference point fixed on the projection tool, said reference axis having a given orientation in space, the monitoring unit being configured to emit an alert signal as soon as and the projection direction is outside the projection authorization beam; and
- 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.  - A cutoff unit configured to prevent projection by the projection tool when actuating the trigger member, as long as an alert signal is issued.
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 through 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.
Dans un mode de réalisation simplifié, le faisceau d'autorisation de projection est prédéfini et ne peut pas être modifié, tandis que dans un mode de réalisation préféré, le faisceau d'autorisation de projection est réglable.  In a simplified embodiment, the projection authorization beam is predefined and can not be modified, while in a preferred embodiment, the projection authorization beam is adjustable.
Dans ce mode de réalisation préféré, le dispositif de protection comporte de plus :  In this preferred embodiment, the protection device further comprises:
- 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 ; et - une unité de traitement 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.  an adjustment unit enabling an operator to provide characteristics for defining the projection authorization beam, and at least said reference axis; and a processing unit for defining said projection authorization beam from said characteristics, said projection authorization beam being used by the monitoring unit.
En outre, de façon avantageuse, l'unité de surveillance comprend :  In addition, advantageously, the monitoring unit comprises:
- au moins un capteur ; et  at least one sensor; and
- un module de traitement d'informations générées par ledit capteur. an information processing module generated by said sensor.
De préférence, l'unité de surveillance comprend, comme capteur, au moins l'un des éléments suivants :  Preferably, the monitoring unit comprises, as a sensor, at least one of the following elements:
- un gyroscope ;  - a gyroscope;
- un accéléromètre ; et  an accelerometer; and
- un compas. - a compass.
Par ailleurs, de façon avantageuse, 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, advantageously, 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 at a given instant. where an operator actuates the adjustment member.
En outre, en variante ou 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 :  In addition, alternatively or additionally, the adjustment unit advantageously comprises an input unit enabling an operator to enter at least some of said characteristics. Advantageously, the input unit is:
- soit montée sur l'outil de projection ;  - is mounted on the projection tool;
- soit déportée et configurée pour permettre une saisie à distance. Avantageusement, bien que non exclusivement, le faisceau d'autorisation de projection présente l'une des formes suivantes : - either remote and configured to allow remote entry. Advantageously, although not exclusively, the projection authorization beam has one of the following forms:
- une forme conique ; et  - a conical shape; and
- une forme pyramidale présentant une pluralité de faces planes.  a pyramidal shape having a plurality of plane 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 :  Furthermore, advantageously, the projection tool is portable and / or it is configured to project at least one of the following products:
- un produit gazeux ;  a gaseous product;
- un produit liquide ; et  - a liquid product; and
- un produit solide.  - 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.  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 the actuation of the trigger member by the operator.
Selon l'invention, ledit procédé de projection comprend :  According to the invention, said projection method comprises:
- 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, ledit axe de référence présentant une orientation donnée dans l'espace, l'étape 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 ; et  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 reference plane fixed on the projection tool, said reference axis having a given orientation in space, the monitoring step being configured to emit an alert signal as soon as and the projection direction is outside the beam projection authorization; and
- 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.  - A cutting step to prevent projection by the projection tool when actuating the trigger member, as long as an alert signal is issued.
En outre, avantageusement, ledit procédé de projection comprend de plus : In addition, advantageously, said projection method further comprises:
- une étape 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 ; et - une étape de traitement pour définir ledit faisceau d'autorisation de projection à partir desdites caractéristiques, ledit faisceau d'autorisation de projection étant utilisé à l'étape de surveillance. an adjustment step enabling an operator to provide characteristics for defining the projection authorization beam, and at least said reference axis; and a processing step for defining said projection authorization beam from said characteristics, said projection authorization beam being used in the monitoring stage.
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.  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.  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.  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.  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.  Figure 7 is a schematic perspective view 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 in 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 shown diagrammatically in FIG. 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,... Cet outil de projection 1 comporte notamment, comme représenté sur la figureThis 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, ... This projection tool 1 comprises in particular, as shown in FIG.
1 : 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.  - 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 direction of projection 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 :  In addition, according to the invention, said protection device 4 comprises, as represented in FIG. 2:
- une unité de surveillance 5 qui est configurée :  a monitoring unit 5 which is configured:
• 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  To monitor the projection direction L of the projection tool 1 with respect to at least one projection authorization beam F; and
• 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 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
- une unité de coupure 6 : - a cutoff unit 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  · Which is connected by a link 7 to the monitoring unit 5 in order to receive an alert signal issued by the latter; and
• 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. 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. Which is configured to prevent projection by the projection tool 1 when actuating the trigger member 2, as soon as such an alert signal is emitted by the monitoring unit 5 and as long as such an alert signal is emitted by said monitoring unit 5. 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 :  In the example shown in FIG. 1, the projection tool 1 also comprises, by way of 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 ; 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;
- 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 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
- un garde-main latéral 10 tenu par la main gauche MG de l'opérateur OP. a lateral handguard 10 held by the left hand MG of the operator OP.
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 reference axis 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. 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. 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 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. 4 and 5, is detected by the protection device 4 which then prevents the projection. Thus, the OP operator can not hurt himself by for example projecting the product to a foot, as shown in FIG.
Dans un premier mode de réalisation simplifié, le faisceau d'autorisation de projection F est prédéfini et fixé (par exemple au moment de la fabrication de l'outil de projection 1 ) et ne peut pas être modifié.  In a first simplified embodiment, the projection authorization beam F is predefined and fixed (for example at the time of manufacture of the projection tool 1) and can not be modified.
Par ailleurs, dans un mode de réalisation préféré, le faisceau d'autorisation de projection F est réglable.  Furthermore, in a preferred embodiment, the projection authorization beam F is adjustable.
Dans ce mode de réalisation préféré, le dispositif de protection 4 comporte de plus, comme représenté sur la figure 2 :  In this preferred embodiment, the protection device 4 further comprises, as shown in FIG. 2:
- une unité de réglage 1 1 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  a setting unit 1 1 enabling an operator OP to provide characteristics for defining the projection authorization beam F, and at least said reference axis R; and
- une unité de traitement 12 qui est reliée par l'intermédiaire d'une liaison 13 à l'unité de réglage 1 1 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 1 1 , 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. 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. 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 especially from the reference axis R received via the adjustment unit 1 1, 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. 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 :  By way of illustration, the projection authorization beam F may be:
- 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 a (figure 3). Dans cet exemple, on peut régler la direction de l'axe de référence R et/ou l'angle d'ouverture a ; - 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 a (figure 3). In this example, it is possible to adjust the direction of the reference axis R and / or the opening angle a;
- 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.  - of 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 :  To do this, the monitoring unit 5 comprises:
- 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  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
- 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. - 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 1 1 comprend un organe de réglage apte à être actionné par un opérateur OP, par exemple 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 1 1 comprises a control member that can be actuated by an operator OP, for example the trigger member 2, and is configured to record, as reference axis R, the projection direction 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. L'opérateur ou le surveillant paramètre également l'écart angulaire a 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 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. The operator or supervisor also sets the allowed angular deviation to deviate from this reference axis R, in particular via successive pulses, for example at a pitch of 2 ° 5 "per pulse.
En outre, en variante ou en complément, l'unité de réglage 1 1 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.  Furthermore, alternatively or additionally, the adjustment unit 1 1 comprises an input unit 15, 16 allowing 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 :  The input unit can be:
- une unité de saisie 15, par exemple un mini clavier, qui est directement montée sur l'outil de projection 1 ; ou an input unit 15, for example a mini keyboard, which is directly mounted on the projection tool 1; or
- 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. an input unit 16 which is remote and configured to enable 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 represented in particular in FIG. 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 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 FIG. 6, the zone Z (or window) is round, the reference axis R being substantially orthogonal to the wall 23. In this FIG. 6, there is furthermore represented a projection point A (FIG. inside zone Z), where the product is projected on the wall 23 for the considered position of the projection tool 1; and
- pour un faisceau d'autorisation de projection F de forme pyramidale, la fenêtre est carrée ou rectangulaire.  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 FIG. 7, the operator OP moves laterally, as illustrated by an arrow G along the wall 23. Two positions P1 and P2 are represented in this FIG. 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 world of preferred embodiment, the projection tool 1 is portable, that is to say that it is carried by an operator OP, as shown in Figure 1 in particular.
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 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 an axis of projection, reference 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 an early warning signal and that the reference axis R is outside the projection authorization beam F; and
- 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.  - A cutoff step configured to prevent projection by the projection tool 1 when actuating the trigger member 2, as long as a warning 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

REVENDICATIONS
1. Outil de projection comportant au moins une lance de projection (3) configurée pour projeter un produit selon une direction de projection (L) et un organe de déclenchement (2) apte à être actionné manuellement par un opérateur (OP), l'outil de projection (1 ) étant configuré pour déclencher la projection du produit lors d'un actionnement de l'organe de déclenchement (2) par l'opérateur (OP), 1. Projection tool comprising at least one projection lance (3) configured to project a product in a projection direction (L) and a triggering member (2) operable 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),
l'outil de projection comportant, de plus, un dispositif de protection (4) qui comprend :the projection tool further comprising a protection device (4) which comprises:
- une unité de surveillance (5) configurée pour surveiller la direction de projection (L) de l'outil de projection (1 ) par rapport à au moins un faisceau d'autorisation de projectiona monitoring unit (5) configured to monitor the projection direction (L) of the projection tool (1) with respect to at least one projection authorization beam
(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 ), l'unité de surveillance (5) étant configurée pour émettre un signal d'alerte dès et tant que la direction de projection (L) est en dehors du faisceau d'autorisation de projection (F) ; - une unité de coupure (6) 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 ; (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), the projection unit monitoring (5) being configured to emit a warning signal as soon as and as long as the projection direction (L) is outside the projection authorization beam (F); - a cutoff unit (6) configured to prevent projection by the projection tool (1) when actuating the trigger member (2), as long as an alert signal is issued;
caractérisé en ce que le dispositif de protection (4) comprend de plus : characterized in that the protective device (4) further comprises:
- une unité de réglage (1 1 ) 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), ledit axe de référence (R) présentant une orientation donnée dans l'espace ; et  an adjustment unit (1 1) enabling an operator (OP) to provide characteristics for defining the projection authorization beam (F), and at least said reference axis (R), said reference axis (R) ) having a given orientation in space; and
- une unité de traitement (12) configurée pour définir ledit faisceau d'autorisation de projection (F) à partir desdites caractéristiques, ledit faisceau d'autorisation de projection (F) étant utilisé par l'unité de surveillance (5),  a processing unit (12) configured to define said projection authorization beam (F) from said characteristics, said projection authorization beam (F) being used by the monitoring unit (5),
l'unité de réglage (1 1 ) comprenant l'organe de déclenchement (2), ladite unité de réglage (1 1 ) étant 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 l'organe de déclenchement (2). the setting unit (1 1) comprising the triggering member (2), said adjusting unit (1 1) being configured to record, as reference axis (R), the projection direction (L) of the projection tool (1) at a time when an operator (OP) actuates the trigger member (2).
2. Outil de projection selon la revendication 1 , caractérisé en ce que l'unité de surveillance (5) comprend : Projection tool according to claim 1, characterized in that the monitoring unit (5) comprises:
- au moins un capteur (C) ; et  at least one sensor (C); and
- un module (18) de traitement d'informations générées par ledit capteur (C).  a module (18) for processing information generated by said sensor (C).
3. Outil de projection selon la revendication 2,  Projection tool according to claim 2,
caractérisé en ce que l'unité de surveillance (5) comprend, comme capteur (C), au moins l'un des éléments suivants : characterized in that the monitoring unit (5) comprises, as a sensor (C), at least one of the following elements:
- un gyroscope ;  - a gyroscope;
- un accéléromètre ; et  an accelerometer; and
- un compas.  - a compass.
4. Outil de projection selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'unité de réglage (1 1 ) comprend une unité de saisie (15, 16) permettant à un opérateur (OP) de saisir au moins certaines desdites caractéristiques.  4. projection tool according to any one of claims 1 to 3, characterized in that the adjustment unit (1 1) comprises a gripping unit (15, 16) allowing an operator (OP) to enter at least some of said features.
5. Outil de projection selon la revendication 4,  Projection tool according to claim 4,
caractérisé en ce que l'unité de saisie (15) est montée sur l'outil de projection (1 ). characterized in that the gripping unit (15) is mounted on the projection tool (1).
6. Outil de projection selon la revendication 4,  Projection tool according to claim 4,
caractérisé en ce que l'unité de saisie (16) est déportée et est configurée pour permettre une saisie à distance. characterized in that the input unit (16) is remote and is configured to allow remote input.
7. Outil de projection selon l'une quelconque des revendications précédentes, caractérisé en ce que le faisceau d'autorisation de projection (F) présente l'une des formes suivantes :  Projection tool according to one of the preceding claims, characterized in that the projection authorization beam (F) has one of the following forms:
- une forme conique ; et  - a conical shape; and
- une forme pyramidale présentant une pluralité de faces planes.  a pyramidal shape having a plurality of plane faces.
8. Outil de projection selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est configuré pour projeter au moins l'un des produits suivants : - un produit gazeux ;  8. Projection tool according to any one of the preceding claims, characterized in that it is configured to project at least one of the following products: - a gaseous product;
- un produit liquide ; et  - a liquid product; and
- un produit solide.  - a solid product.
9. Outil de projection selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est portatif. 9. Projection tool according to any one of the preceding claims, characterized in that it is portable.
10. Procédé de projection, à l'aide d'un outil de projection (1 ) comportant au moins une lance de projection (3) configurée pour projeter un produit selon une direction de projection (L) et un organe de déclenchement (2) apte à être actionné manuellement par un opérateur (OP), l'outil de projection (1 ) étant configuré pour déclencher la projection du produit lors de l'actionnement de l'organe de déclenchement (2) par l'opérateur (OP), l'outil de projection (1 ) comprenant en outre une unité de réglage (1 1 ) et une unité de traitement (12), ledit procédé comprenant : 10. Projection method, using a projection tool (1) comprising at least one projection lance (3) configured to project a product in a direction of projection (L) and a trigger member (2) able to be actuated manually by an operator (OP), the projection tool (1) being configured to trigger the projection of the product when the actuator (2) is actuated by the operator (OP), the projection tool (1) further comprising an adjusting unit (1 1) and a processing unit (12), said method comprising:
- une étape de surveillance 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 ), l'étape de surveillance consistant à émettre un signal d'alerte dès et tant que la direction de projection (L) est en dehors du faisceau d'autorisation de projection (F) ; et  a monitoring step for monitoring 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), the monitoring step of issuing a warning signal from and as far as the direction projection (L) is outside the projection authorization beam (F); and
- une étape de coupure 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,  a cut-off step to prevent projection by the projection tool (1) during the actuation of the triggering member (2), as long as an alert signal is emitted,
caractérisé en ce qu'il comprend de plus : characterized by further comprising:
- une étape de réglage, mise en œuvre par l'unité de réglage (1 1 ), 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), ledit axe de référence (R) présentant une orientation donnée dans l'espace ; et  an adjustment step, implemented by the adjustment unit (1 1), enabling an operator (OP) to provide characteristics for defining the projection authorization beam (F), and at least said axis of reference (R), said reference axis (R) having a given orientation in space; and
- une étape de traitement, mise en œuvre par l'unité de traitement (12), consistant à définir ledit faisceau d'autorisation de projection (F) à partir desdites caractéristiques, ledit faisceau d'autorisation de projection (F) étant utilisé à l'étape de surveillance, l'étape de réglage comprenant l'enregistrement, comme axe de référence (R), de la direction de projection (L) de l'outil de projection (1 ) à un instant où un opérateur (OP) actionne l'organe de déclenchement (2).  a processing step, implemented by the processing unit (12), of defining said projection authorization beam (F) from said characteristics, said projection authorization beam (F) being used to the monitoring step, the setting step comprising recording, as reference axis (R), the projection direction (L) of the projection tool (1) at a time when 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 true EP3433024A1 (en) 2019-01-30
EP3433024B1 EP3433024B1 (en) 2019-11-20

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ID=56087372

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EP17713348.5A Active EP3433024B1 (en) 2016-03-22 2017-03-03 Projection tool, especially for hazardous projection

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

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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

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EP3433024B1 (en) 2019-11-20
WO2017162950A1 (en) 2017-09-28

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