EP3130879B1 - Pulvérisateur de substance irritante - Google Patents

Pulvérisateur de substance irritante Download PDF

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Publication number
EP3130879B1
EP3130879B1 EP16183692.9A EP16183692A EP3130879B1 EP 3130879 B1 EP3130879 B1 EP 3130879B1 EP 16183692 A EP16183692 A EP 16183692A EP 3130879 B1 EP3130879 B1 EP 3130879B1
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EP
European Patent Office
Prior art keywords
valve
irritant
pressure
control valve
trigger
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.)
Active
Application number
EP16183692.9A
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German (de)
English (en)
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EP3130879A1 (fr
Inventor
Tobias Hoernecke
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.)
Carl Hoernecke Chem Fabrik & Co KG GmbH
Original Assignee
Carl Hoernecke Chem Fabrik & Co KG GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/10—Hand-held or body-worn self-defence devices using repellant gases or chemicals
    • 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
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0483—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with gas and liquid jets intersecting in the mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • 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
    • F41B9/0071—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by special valve arrangements

Definitions

  • the invention relates to an irritant-spraying device according to the preamble of claim 1.
  • Such irritant sprayers are used to spray irritants in the form of tear gas or natural or synthetic pepper and are used by a user to defend themselves against an attacker by incapacitating them for a short time.
  • the known irritant sprayers are in different sizes on the market, very small in the form of a spray can, but also relatively large, for example, such that a reservoir in which the drug is stored, backpack-style is worn on the back and the user in the Hand only a discharge lance or a Dispensing gun, which is connected via a flexible hose to the reservoir.
  • An example shows the German utility model DE 20 2006 000 889 U1 ,
  • the DE 26 57 533 A1 discloses a spray gun, for example, for the cavity sealing in motor vehicles.
  • a pneumatic timer automatically stops spraying.
  • the AU 2011100371 A4 discloses a spraying device, for example, for a lubricant for a semi-trailer of a semi-trailer. In this sprayer two timers are provided.
  • a first timer automatically stops spraying, a second timeout prevents re-spraying for a certain period after the end of a previous spraying operation.
  • the DE 29 16 726 A1 describes a gun for delivering an irritant. By actuating a trigger, a pulse-like delivery is initiated.
  • a mechanical timer which is formed by a tension spring and an inhibitor, terminates the pulse-like delivery automatically.
  • the present invention has for its object to provide an irritant sprayer, which can be handled reliably and safely by a user even in an extreme mental health situation.
  • the invention proposes an irritant spray device comprising an irritant storage container for storing an active agent, a dispenser fluidically connectable to the storage container for dispensing the active ingredient, and a user actuatable trigger for initiating dispensing of the active agent.
  • the irritant-spraying device has a shutdown on which a release of active substance after a time from actuation of the trigger even when still actuated trigger by itself, so automatically and without the user's intervention, finished.
  • the shutdown device comprises a pneumatic or an electronic timer, which controls at least one shut-off valve after a period of time directly or indirectly in such that the release of active ingredient is terminated.
  • a pneumatic timer has the advantage that it does not require any power supply.
  • An electronic timer has the advantage of being very precise and easy to adjust.
  • a first development of the irritant spray device according to the invention is characterized in that the time is adjustable. This allows the user to adapt the characteristics of the irritant sprayer to the expected usage scenario. If an application scenario is to be expected in which rather brief impulse-like deliveries of active ingredient are desired, the time will be rather short. If, on the other hand, an application scenario is to be expected, in which rather long individual deliveries of active ingredient are beneficial, the time will be set rather long.
  • a switching position of the at least one shut-off valve is influenced by at least one control valve whose switching position can in turn be influenced by the timer.
  • the control valve is thus a kind of servo or pilot valve, which only the control pressure for the at least one shut-off valve provides. This makes it possible to operate, for example, in the region of the trigger with a comparatively low pressure, whereby the reliability is increased, however, to use a comparatively high pressure for the delivery of the active substance, whereby the atomization and / or range of the active ingredient or active substance jet improved becomes.
  • the pneumatic timer comprise a pressure accumulator and a first flow restrictor, wherein the first flow restrictor is arranged fluidically between the pressure accumulator and a pressure source, the connection of the pressure source to the pressure accumulator being released by actuation of the trigger the pressure accumulator is fluidically connected to a control input of a first control valve, and wherein the first control valve is controlled in its blocking position when the pressure at the control input exceeds a limit value.
  • a pneumatic timer is particularly easy to implement and works in practice very reliable.
  • the pressure accumulator is connected to a low-pressure region when releasing the trigger, and that the first control valve is controlled in its rest position when the pressure at the control input falls below a limit. This ensures that after a release of the trigger by the user, the timer is reset and immediately a new release of active ingredient can be triggered.
  • An advantageous embodiment of the invention further provides that a second control valve is arranged fluidly between a pressure source and a control input of a first shut-off valve, which is fluidically disposed between the irritant storage container, in particular a downstream of this arranged mixing chamber, and the dispenser and in the open position is controlled when the output of the second control valve is pressurized.
  • a second control valve is arranged fluidly between a pressure source and a control input of a first shut-off valve, which is fluidically disposed between the irritant storage container, in particular a downstream of this arranged mixing chamber, and the dispenser and in the open position is controlled when the output of the second control valve is pressurized.
  • another servo control section connected to the first control valve is provided, making it possible to use the optimum pressure for each section in each section.
  • the arrangement of the first shut-off valve between the mixing chamber and the dispensing device also has the advantage that after a closing of the first shut-off valve, active substance still present in the mixing chamber can not escape through the dispensing
  • the second control valve is arranged fluidly between a pressure source and a control input of a second shut-off valve, wherein the second shut-off valve is fluidly disposed between the irritant storage container and the mixing chamber, wherein the second shut-off valve is controlled in the open position when the second control valve is opened, and wherein the mixing chamber is permanently fluidically connected to the pressure source.
  • the mixing chamber is thus constantly under pressure, so that upon actuation of the trigger immediately on the delivery device of the active ingredient in the desired mixture is available.
  • a second flow restrictor is arranged, it is ensured that the second shut-off valve opens simultaneously with the first shut-off valve, even if the length of a pneumatic line between the second control valve and the first shut-off valve and the second control valve and the second shut-off valve is different.
  • an output of the first control valve is connected to a first input of a pneumatic OR gate and an output of the OR gate to the control input of the second control valve, and that a second input of the OR gate by means of a manual valve with the pressure source is connectable.
  • the irritant spray device 10 comprises a dispenser in the form of a dispensing gun 12 and a storage and control section 14.
  • the dispensing gun 12 is connected to the storage and control section 14 via a plurality of pneumatic lines 16.
  • the storage and control section 14 is formed as a rucksack-style backpack worn by the user on his back.
  • the dispensing gun 12 includes a user actuatable trigger 15 for triggering delivery of an active agent.
  • the storage and control section 14 essentially comprises the following components: First, a pressure source 18 should be mentioned, which may be, for example, a compressed air tank.
  • the pressure source 18 is shown in the figure surrounded by a storage container 20 for storing an active ingredient. In fact, however, it is located outside the irritant sprayer 10 so that it can be exchanged as a whole in the manner of a cartridge.
  • the active substance is, for example, a mixture which comprises a liquid carrier and the actual active substance absorbed therein, for example an irritant in the form of natural or synthetic capsaicin. Synthetic capsaicin is also known as "PAVA".
  • An atomized spray of active substance emerging from the dispensing gun 12 carries in FIG. 1 Overall, the reference numeral 22nd
  • a shut-off device 24 is indicated, which terminates a release of active ingredient from the storage container 20 through the dispensing gun 12 after a time from the beginning of dispensing even when the trigger 15 is actuated.
  • the irritant sprayer 10 further includes various valves, the function of which is more specifically described with reference to FIG FIG. 2 will be explained.
  • a first control valve housed in the storage and control section 14 carries a first shut-off valve is housed in the region of the dispensing gun 12 and bears the reference numeral 30.
  • a second shut-off valve in turn is arranged in the storage and control section 14 and is denoted by 32.
  • a pressure reducer 34 is arranged on this, and in the dispensing gun 12, a mixing chamber 36 is integrated. From the pressure reducer 34 performs a pneumatic line 16 A via a first additional pressure reducer 37 A to the mixing chamber 36. From the second shut-off valve 32 leads a drug line 16 B to the mixing chamber 36. The second control valve 28 and the first shut-off valve 30 are interconnected by a pneumatic line 16 C. , An output of a switching valve 38 which is mechanically coupled to the trigger 15 is connected by a pneumatic line 16 F to an input of the first control valve 26. The input of the switching valve 38 is connected via the pressure reducer 34, a second additional pressure reducer 37 B and a pneumatic line 16 H to the pressure source 18.
  • a pressure gauge 39 which indicates the pressure prevailing in the pressure source 18 pressure.
  • the pressure gauge 39 is connected via a pneumatic line 16 E to the pressure source 18.
  • the trigger 15 is mechanically coupled to the switching valve 38.
  • This has two inputs, with one over the second additional pressure reducer 37 B and the pneumatic line 16 H is connected to the pressure reducer 34 and the other with a low pressure region 40.
  • the low pressure area 40 may be, for example, the outside environment.
  • an output of the switching valve 38 is connected to the low-pressure region 40.
  • the output of the switching valve 38 leads to the shutdown device 24, there on the one hand via the pneumatic line 16 F to a first input of the first control valve 26, and on the other via the pneumatic line 16 D and an adjustable first flow restrictor 42 to a pressure accumulator 44, the again is connected to a control input of the first control valve 26.
  • the output of the first control valve 26 is connected to the switching valve 38. If the pressure at the control input exceeds a limit, the first control valve 26 is controlled to its second position. In this, the output of the first control valve 26 is connected to a second input, which leads to the low-pressure region 40.
  • Parallel to the first flow restrictor 42, a check valve 46 is connected, which blocks to the accumulator 44 back.
  • An output of the first control valve 26 leads to a first input of an OR gate 47, the output of which is connected to a control input of the second control valve 28.
  • a first input of the second control valve 28 is connected to the pressure reducer 34, a second input to the low pressure region 40. In the spring-loaded rest position, the second non-pressurized input to the Output connected. When an increased pressure is applied to the control input, the first input connected to the pressure reducer 34 is connected to the output.
  • the output of the second control valve 28 leads to a control input of the first shut-off valve 30. This is closed in the spring-loaded rest position and is opened when applied to the control input, an increased pressure. The output of the first shut-off valve 30 is connected to the dispensing gun 12.
  • the output of the second control valve 28 also leads to an adjustable second flow restrictor 48 and from there to a control input of the second shut-off valve 32.
  • a check valve 50 is arranged, which blocks to the control input of the second shut-off valve 32 back.
  • the second shut-off valve 32 is closed in its spring-loaded rest position and is opened when applied to the control input, an increased pressure.
  • the output of the second shut-off valve 32 also leads via the active ingredient line 16 B to the mixing chamber 36.
  • the input of the second shut-off valve 32 is connected to the storage container 20, in which the active substance is stored. This in turn is permanently connected via the pneumatic line 16 G to the pressure reducer 34.
  • a second input of the pneumatic OR element via a manual valve 52 is also connected to the pressure reducer 34.
  • the irritant spray device 10 operates as follows: in the FIG. 2 shown rest position, the trigger 15 is not actuated. The output of the switching valve 38 is thus connected to the low pressure area 40 and therefore pressureless.
  • the first control valve 26 is in its rest position. Thus, the output of the first control valve 26 is depressurized, and thus the control input of the second control valve 28. Thus, its output is connected to the non-pressurized input, so that the two control inputs of the first and second shut-off valves 30 and 32 are depressurized. These are thus closed. As a result, the connection from the storage container 20 to the mixing chamber 36 is blocked, and it is the connection from the mixing chamber 36 to the dispensing gun 12 locked. So no active ingredient 22 is dispensed.
  • the output of the switching valve 38 is connected to the second input, which is connected via the pressure reducer 34 and the second additional pressure reducer 37 B to the pressure source 18.
  • the output of the switching valve 38 of the set by the pressure reducer 34 and 37 B increased pressure.
  • this increased pressure now also applied to the control input of the second control valve 28, whereby the output of which is connected to its first input, so also to the output of the pressure reducer 34.
  • the storage container 20 is fluidically connected to the mixing chamber 36.
  • the active substance 22 can be mixed in the mixing chamber 36 with the compressed air supplied through the pneumatic line 16 A and discharged via the dispensing gun 12.
  • the output of the switching valve 38 is not only connected to the first input of the first shut-off valve 26, but also via the flow restrictor 42 to the pressure accumulator 44 of the shut-off device 24.
  • the pressure accumulator 44 begins to fill, namely with a filling speed predetermined by the first flow restrictor 42.
  • the pressure in the accumulator 44 gradually increases. If the pressure in the pressure accumulator 44 and thus the pressure at the control input of the first control valve 26 reaches a limit value, the first control valve 26 switches and the output of the first control valve 26 is connected to the unpressurized second input.
  • the pressure at the outlet of the first control valve 26 drops abruptly, and consequently also the pressure at the control input of the second control valve 28. This therefore switches to its spring-loaded rest position in which its output is depressurized.
  • the two control inputs of the first and second shut-off valves 30 and 32 are depressurized, whereby they close. This will be a Dispensing of drug through the dispensing gun 12 finished, even if the user continues to hold the trigger 15.
  • the time from the beginning of the delivery to the end is determined by the filling speed of the pressure accumulator 44, and thus ultimately by the setting of the first flow restrictor 42.
  • the pressure accumulator 44 and the first flow restrictor 42 thus form a pneumatic timing member.
  • the output of the switching valve 38 is connected to the low-pressure region 40 without pressure.
  • the pressure accumulator 44 is now suddenly emptied, causing the control input of the first control valve 26 is depressurized. This thus switches back to its rest position in which its first input, which is connected to the switching valve 38, is connected to the output. If the user presses the trigger 15 again anew, the release of active substance is immediately started again.
  • irritant spray device 10 is such with a pneumatic control. But it is also possible that in particular the shutdown device works electronically. It is conceivable, for example, that an electrical contact is actuated by the trigger, which leads to an electromagnetically actuated valve opens and the active ingredient is discharged via the dispensing gun. An electronic counter counts the time from when the shutter is pressed and closes the solenoid-operated valve after a preset time has elapsed. If the user releases the trigger, the counter is reset.
  • the irritant-spraying device not, as above, on the one hand a pressure source - for example a compressed air cartridge - and on the other hand an irritant storage container - for example, an irritant cartridge - has, but that it has a single pressurized irritant storage container.
  • the mixing chamber and the first shut-off valve can be accommodated in the storage and control section.

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  • General Engineering & Computer Science (AREA)
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Claims (9)

  1. Dispositif de pulvérisation de substance irritante (10) pour repousser un agresseur, comprenant un récipient de stockage de substance irritante (20) pour stocker une substance active (22), un dispositif de distribution (12) pouvant être relié en communication de fluide avec le récipient de stockage (20) pour distribuer la substance active (22), et un déclencheur pouvant être actionné par un utilisateur (15) pour déclencher la distribution de la substance active (22), dans lequel il présente un dispositif d'arrêt (24) qui met fin à une distribution de la substance active (22) après un certain temps suite à l'actionnement du déclencheur (15) aussi en cas d'un actionnement continu du déclencheur (15), et le dispositif d'arrêt (24) comporte un minuteur pneumatique ou électronique (42, 44), qui commande directement ou indirectement au moins une soupape d'arrêt (30, 32) après l'écoulement d'un laps de temps de telle sorte que la distribution de la substance active (22) prend fin, caractérisé en ce qu'une distribution de substance active (22) peut également prendre fin avant même l'écoulement du laps de temps grâce à l'utilisateur qui relâche le déclencheur (15), et dans lequel après un relâchement du déclencheur (15), la distribution de la substance active peut recommencer immédiatement par un nouvel actionnement du déclencheur (15).
  2. Dispositif de pulvérisation de substance irritante (10) selon la revendication 1, caractérisé en ce que le temps est réglable.
  3. Dispositif de pulvérisation de substance irritante (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une position de commutation de la au moins une soupape d'arrêt (30, 32) est influencée par au moins une soupape de commande (26, 28), dont la position de commutation peut à son tour être influencée par le minuteur (42, 44).
  4. Dispositif de pulvérisation de substance irritante (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le minuteur pneumatique comprend un accumulateur de pression (44) et un premier restricteur d'écoulement (42), dans lequel le premier restricteur d'écoulement (42) est agencé de manière fluidique entre l'accumulateur de pression (44) et une source de pression (18), dans lequel la liaison de la source de pression (18) à l'accumulateur de pression (44) est libérée en actionnant le déclencheur (15), dans lequel l'accumulateur de pression (44) est relié de manière fluidique à une entrée de commande d'une première soupape de commande (26), et dans lequel la première soupape de commande (26) est commandée de sorte que sa sortie est dépressurisée lorsque la pression au niveau de l'entrée de commande dépasse un seuil.
  5. Dispositif de pulvérisation de substance irritante (10) selon la revendication 4, caractérisé en ce que l'accumulateur de pression (44) est relié à une zone basse pression (40) en relâchant le déclencheur (15), et en ce que la première soupape de commande (26) revient à sa position de repos lorsque la pression à son entrée de commande tombe en dessous d'un seuil.
  6. Dispositif de pulvérisation de substance irritante (10) selon l'une quelconque des revendications 3 à 5, caractérisé en ce qu'une seconde soupape de commande (28) est agencée de manière fluidique entre une source de pression (18) et une entrée de commande d'une première soupape d'arrêt (30), qui est agencée de manière fluidique entre le réservoir de stockage de substance irritante (20), en particulier une chambre de mélange (36) agencée en aval de celui-ci, et le dispositif de distribution (12), et est commandée dans une position ouverte lorsque la sortie de la seconde soupape de commande (28) est pressurisée.
  7. Dispositif de pulvérisation de substance irritante (10) selon la revendication 6, caractérisé en ce que la seconde soupape de commande (28) est agencée de manière fluidique entre une source de pression (18) et une entrée de commande d'une seconde soupape d'arrêt (32), dans lequel la seconde soupape d'arrêt (32) est agencée de manière fluidique entre le récipient de stockage de substance irritante (20) et la chambre de mélange (36), dans lequel la seconde soupape d'arrêt (32) est commandée dans la position ouverte lorsque la sortie de la seconde soupape de commande (28) est pressurisée, et de préférence en ce que la chambre de mélange (36) est reliée à la source de pression (18) de manière complètement fluidique.
  8. Dispositif de pulvérisation de substance irritante (10) selon la revendication 7, caractérisé en ce qu'un second restricteur d'écoulement (48) est agencé de manière fluidique entre la seconde soupape de commande (26) et la seconde soupape d'arrêt (32).
  9. Dispositif de pulvérisation de substance irritante (10) selon l'une quelconque des revendications 6 à 8, caractérisé en ce qu'une sortie de la première soupape de commande (26) est connectée à une première entrée d'une porte OU pneumatique (47) et une sortie de la porte OU (47) est relié à l'entrée de commande de la seconde soupape de commande (28), et en ce qu'une seconde entrée de la porte OU (47) peut être reliée à la source de pression (18) au moyen d'une soupape manuelle (52).
EP16183692.9A 2015-08-11 2016-08-11 Pulvérisateur de substance irritante Active EP3130879B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015215265.0A DE102015215265A1 (de) 2015-08-11 2015-08-11 Wirkstoff-Sprühgerät

Publications (2)

Publication Number Publication Date
EP3130879A1 EP3130879A1 (fr) 2017-02-15
EP3130879B1 true EP3130879B1 (fr) 2018-10-17

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EP16183692.9A Active EP3130879B1 (fr) 2015-08-11 2016-08-11 Pulvérisateur de substance irritante

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EP (1) EP3130879B1 (fr)
DE (1) DE102015215265A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422282B (sv) * 1975-12-18 1982-03-01 Atlas Copco Ab Sprutpistol
DE2916726C2 (de) * 1979-04-25 1984-11-08 Heckler & Koch Gmbh, 7238 Oberndorf Gerät zum Verschießen von Flüssigkeit
DE202006000889U1 (de) 2006-01-20 2006-03-23 Hoernecke, Carl Aufnahmevorrichtung für eine Reizstoffpatrone, sowie Reizstoff-Sprühgerät
AU2011100371A4 (en) * 2010-07-19 2011-05-12 Innovative Chemical Services Pty Ltd Pneumatic dispensing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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EP3130879A1 (fr) 2017-02-15

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