EP3838348B1 - Dispositif de protection buccale pour un système de protection respiratoire - Google Patents

Dispositif de protection buccale pour un système de protection respiratoire Download PDF

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Publication number
EP3838348B1
EP3838348B1 EP19218878.7A EP19218878A EP3838348B1 EP 3838348 B1 EP3838348 B1 EP 3838348B1 EP 19218878 A EP19218878 A EP 19218878A EP 3838348 B1 EP3838348 B1 EP 3838348B1
Authority
EP
European Patent Office
Prior art keywords
base body
breathing
breathing air
mask base
mouth
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
EP19218878.7A
Other languages
German (de)
English (en)
Other versions
EP3838348A1 (fr
Inventor
Jonathan HEUSSER
Robert Buechel
Daniel BLÖCHLINGER
Jasper BROUWER
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.)
Optrel Holding AG
Original Assignee
Optrel Holding AG
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
Priority to US17/787,494 priority Critical patent/US11617906B2/en
Application filed by Optrel Holding AG filed Critical Optrel Holding AG
Priority to EP19218878.7A priority patent/EP3838348B1/fr
Priority to PCT/EP2020/087025 priority patent/WO2021123168A1/fr
Priority to CN202080088982.8A priority patent/CN114845783B/zh
Publication of EP3838348A1 publication Critical patent/EP3838348A1/fr
Application granted granted Critical
Publication of EP3838348B1 publication Critical patent/EP3838348B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/006—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort with pumps for forced ventilation
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1161—Means for fastening to the user's head
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/084—Means for fastening gas-masks to heads or helmets
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask

Definitions

  • the invention relates to a mouth protection device for a respiratory protection system.
  • a mouth protection device for a respiratory protection system in particular a blower respiratory protection system, with at least one mask base body, which is intended to cover a mouth and / or nose area of a user and which at least partially delimits a breathing area, and with at least one with the Mask base body connected breathing air supply line, which delimits at least one breathing air channel opening into the breathing area, which is intended to guide an active breathing air flow, has been proposed.
  • Respiratory protection system A mouth guard system according to the preamble of claim 1 is already out US5460174A known.
  • the object of the invention is, in particular, to provide a generic device with improved properties in terms of compactness and comfort.
  • the object is achieved according to the invention by the features of patent claim 1, while advantageous refinements and developments of the invention can be found in the subclaims.
  • the invention is based on a mouth protection device for a respiratory protection system, in particular a blower respiratory protection system, with at least one mask base body, which is intended to cover a mouth and/or nose area of a user and which at least partially delimits a breathing area, and with at least one breathing air supply line connected to the mask base body, which delimits at least one breathing air channel opening into the breathing area and which is intended to guide an active breathing air flow.
  • a mouth protection device for a respiratory protection system in particular a blower respiratory protection system
  • at least one mask base body which is intended to cover a mouth and/or nose area of a user and which at least partially delimits a breathing area
  • at least one breathing air supply line connected to the mask base body, which delimits at least one breathing air channel opening into the breathing area and which is intended to guide an active breathing air flow.
  • the mask base body consists at least to a large extent of a flexible material.
  • the mask base body is made entirely of a flexible material.
  • stiffening elements to be provided on and/or in the mask base body, which hold the mask base body at least partially in a defined basic shape.
  • the mask base body preferably consists, in particular, at least to a large extent of a dimensionally unstable material, such as a textile, a leather, a soft silicone or the like.
  • a “respiratory protection system” is intended to mean, in particular, a system with a blower device and a mouth guard device, which is intended to actively provide an air flow to a user's breathing air supply.
  • the respiratory protection system is intended, in particular, to generate an air flow during operation by means of a blower device, which is supplied to the mouth protection device of the respiratory protection system.
  • the blower device is connected to the mouth protection device of the respiratory protection system via at least one breathing air supply line.
  • the respiratory protection system is intended to suck in air from an environment during operation by means of the blower device, to clean the air, in particular to filter it, and to actively supply the cleaned air to a user by means of the mouth guard device.
  • a “mouth protection device” is intended to mean, in particular, a device that forms a mouth guard and is intended to be worn at least on the mouth and/or nose area of a user.
  • the device is preferably intended to form a breathing area in front of the mouth and/or nose area of a user, which is continuously supplied with breathing air during operation.
  • the mouth guard device is preferably intended to supply a user directly with breathing air and to protect the mouth and/or nose area of a user from external influences, in particular from gases, particles and/or suspended matter.
  • the mouth guard device is preferably free from covering the eyes, in particular an eye area, of a user.
  • a “mask base body” is to be understood in particular as a base body of the mouth guard device, which is intended to directly cover the mouth and/or nose area of a user.
  • the Mask base body is formed in particular by a flat component which is intended to extend over the mouth and/or nose area of a user.
  • the mask base body preferably delimits a breathing area, which is formed in an operating state by the mask base body and a face of the user.
  • the breathing air supply line is formed in particular by a hose which is intended to delimit a breathing air channel.
  • the breathing air supply line connects in particular a blower device of the respiratory protection system with the mask base body of the mouth protection device of the respiratory protection system.
  • the breathing air channel is in particular intended to guide a breathing air flow into the breathing area, where the breathing air flow is intended to supply the user with air during operation.
  • a “flexible component” is intended to mean in particular a component, preferably a flat component, which has flexible properties at least in a direction perpendicular to a main extension direction.
  • the counterforce is preferably a maximum of 70%, preferably a maximum of 50% and particularly preferably a maximum of 30% of a weight force.
  • the flexible component is at least partially or completely formed by a chain, a belt and/or a rope.
  • this should be understood to mean, in particular, a component that differs from a rod or the like.
  • a “flat component” is intended to mean in particular a component that, in a designed state, has a height extension that is many times smaller than a longitudinal extension and a transverse extension of the component.
  • a height extension is preferably less than 5 cm, preferably less than 2 cm and particularly preferably less than 1 cm.
  • “Many times lower” should be understood to mean in particular at least 5 times, preferably at least 10 times and particularly preferably at least 20 times lower.
  • the term “intended” is intended to mean, in particular, specifically programmed, designed and/or equipped. Including that an object becomes one If a specific function is provided, it should be understood in particular that the object fulfills and/or executes this specific function in at least one application and/or operating state.
  • the term “at least to a large extent” should be understood to mean in particular at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85% and particularly advantageously at least 95%.
  • the inventive design of the mouth guard device can in particular provide an advantageously flexible mouth guard device.
  • a mouth guard device can be provided which adapts to the shape of the face.
  • a mouth guard device can be provided for different facial shapes and sizes.
  • an advantageously high level of wearing comfort can be provided. This makes it possible to achieve an advantageously high level of comfort for the mouth guard device.
  • an advantageously compact mouth guard device can be provided.
  • the mask base body consists at least largely of a textile material.
  • the mask base body preferably consists of a textile.
  • a “textile material” should be understood to mean, in particular, a material made from a textile raw material, such as natural fibers and/or chemical fibers, which are processed into linear, flat and spatial structures using various processes.
  • the textile material can, in particular, also include non-textile raw materials, which, together with the textile raw materials, are processed into linear, flat and spatial structures using various processes.
  • the mask base body consists in particular at least to a large extent of a flat textile structure such as, in particular, a woven fabric, a knitted fabric, a knitted fabric, a braid, a sewn-knit fabric, a nonwoven fabric and/or a felt.
  • a mouth guard device that is advantageously comfortable to wear can be provided.
  • a mouth guard device can be provided for different facial shapes and sizes.
  • an advantageously high level of wearing comfort can be provided.
  • an advantageously lightweight mouth guard device can be provided.
  • the mouth guard device has at least one further breathing air supply line, which is redundant to the breathing air supply line and is connected to the mask base body and which delimits at least one further breathing air channel opening into the breathing area and which is intended to guide an active breathing air flow.
  • the further breathing air supply line preferably has a function that is redundant to the breathing air supply line.
  • the further breathing air supply line serves in particular to increase the security of supply with the breathing air flow.
  • the breathing air supply line and the further breathing air supply line each function independently of one another. In this way, a supply of the breathing air flow can be guaranteed, especially in the event of a blocked and/or compressed breathing air supply line or another breathing air supply line.
  • the breathing air supply line and the further breathing air supply line are in particular routed differently to a user in order to avoid the breathing air supply lines being pressed off at the same time.
  • Breathing air supply line is arranged on a side of the mask base body facing away from the breathing air supply line.
  • the breathing air supply lines are intended to be passed on different sides of the user's head.
  • the breathing air supply lines are each connected to the mask base body at opposite ends of the mask base body.
  • the breathing air supply lines are intended in particular to be guided on opposite sides of the user's neck.
  • the mask base body preferably has an at least approximately elliptical shape, with the breathing air supply lines each being connected to the mask base body at one of the two outer main vertices of the ellipse. In this way, a supply of the breathing air flow can be guaranteed, especially in the event of a blocked and/or compressed breathing air supply line or another breathing air supply line.
  • the breathing air supply line and the further breathing air supply line are in particular routed differently to a user in order to avoid the breathing air supply lines being pressed off at the same time. In particular, an advantageously redundant breathing air supply can be provided.
  • the mouth guard device has at least one fastening strap for fixing the mask base body to a user's head and at least one connection unit for a simultaneous plug connection of the fastening strap and the at least one breathing air supply line to the mask base body.
  • the fastening band is preferably formed in particular by an elastic band, such as in particular a rubber band.
  • the fastening band in particular has a width which corresponds at least approximately to a width of the breathing air supply line.
  • an effective length of the fastening strap is designed to be adjustable.
  • the fastening band extends in particular from a first end of the mask base body to an opposite second end of the mask base body.
  • the fastening band extends in particular from a first end of the mask base body, at which the breathing air supply line is connected to the mask base body, to an opposite second end of the mask base body, at which the further breathing air supply line is connected to the mask base body.
  • a “connection unit” should be understood to mean, in particular, a unit that forms an interface to a detachable coupling, in particular without tools, of the fastening band and the at least one breathing air supply line with the mask base body.
  • the connection unit in particular enables multiple coupling and decoupling of the fastening strap and the at least one breathing air supply line to the mask base body, carried out by an operator.
  • the connection unit is used in particular to pull off or take off the mouth guard device.
  • a coupling can take place, for example, by means of a plug-in movement, a rotary movement and/or a combination of a plug-in and rotary movement.
  • the connection unit has at least one first coupling element and at least one second coupling element corresponding to the first coupling element.
  • a first coupling element forms an interface receptacle, while the second coupling element forms an interface extension.
  • the first coupling element is in particular firmly connected to the mask base body.
  • the second coupling element is in particular firmly formed with the fastening band and the at least one breathing air supply line.
  • the first coupling element is formed by a hose connection.
  • the mouth guard device preferably has two connection units, in particular a first one Connection unit for the breathing air supply line and a second connection unit for the further breathing air supply line.
  • both the fastening band and the breathing air supply line can be released with just one connection unit.
  • this can in particular ensure that the mouth guard device can only be worn with a connected breathing air supply line, since the mouth guard device cannot be worn without the fastening band and the fastening band cannot be coupled to the mask base body without the breathing air supply line.
  • the mouth guard device has at least one adjustment unit, by means of which at least an effective length of a side edge of the mask base body is designed to be at least partially adjustable.
  • an effective length of a side edge from the first end to the second end of the mask base body is designed to be at least partially adjustable by means of the adjustment unit.
  • the side edge preferably runs at least essentially parallel to a main extension direction of the mask base body.
  • the adjustment unit preferably comprises in particular a cord, in particular an elastic cord, and a cord clamp.
  • the cord of the adjustment unit extends in particular in a channel of the mask base body from the first end of the mask base body to the second end of the mask base body opposite the first end. The cord is in particular attached to the first end and the second end.
  • an effective length of the cord and thus also the side edge of the mask base body is designed to be manually adjustable.
  • an effective length of the cord is designed to be manually adjustable.
  • a “main extension direction” of an object should be understood to mean, in particular, a direction which runs parallel to a longest edge of a smallest geometric cuboid, which just completely encloses the object. In this way, an advantageously simple and comfortable adjustability of the mouth guard device, in particular of the mask base body, can be achieved. In particular, this allows the mouthguard device to be adapted to different face sizes.
  • the mouth guard device has at least one separating layer connected to the mask base body, which is provided for at least partial separation of the breathing area from an outlet area, the outlet area being at least partially delimited by the mask base body.
  • the outlet area is arranged at least below the breathing area.
  • the mask base body together with the user's face, delimits a spatial area which is divided into a breathing area and an outlet area by means of the separating layer.
  • the separating layer is in particular formed in one piece with the mask base body.
  • the separating layer preferably has a recess in a central region which connects the breathing region with the outlet region.
  • “In one piece” should in particular be understood to be at least materially connected, for example by a welding process, an adhesive process, a molding process and/or another process that appears sensible to the person skilled in the art, and/or advantageously understood to be formed in one piece, such as for example by a Manufacture from a single casting and/or by production in a single or multi-component injection molding process and advantageously from a single blank and/or firmly sewn. In this way, particularly advantageous air guidance can be achieved. Furthermore, at least partial separation of breathing air and exhaled air can be achieved.
  • the separating layer consists at least essentially of a textile material. This makes it possible, in particular, to provide an advantageously flexible mouth guard device.
  • a mouth guard device can be provided for different facial shapes and sizes.
  • an advantageously high level of wearing comfort can be provided.
  • an advantageously lightweight mouth guard device can be provided.
  • the separating layer is provided for a defined air flow, the separating layer being intended to guide the breathing air flow past the mouth and/or nose area of a user before reaching the outlet area.
  • the separating layer has a recess in a central region which connects the breathing region with the outlet region.
  • the breathing air flow flows from the breathing air duct into the during operation Breathing area and from there through the recess into the outlet area.
  • the recess is preferably arranged in a close area of the mouth and/or nose area of a user. In this way, particularly advantageous air guidance can be achieved. Furthermore, at least partial separation of breathing air and exhaled air can be achieved.
  • the mouth guard device has at least one release valve, which is intended to regulate a pressure in the breathing area to an at least approximately constant value.
  • the drain valve is formed in particular by an overpressure valve, in particular a one-way overpressure valve, which is intended to open towards an environment from a defined overpressure in the breathing area and/or the outlet area.
  • the drain valve is preferably formed in particular by a mechanical valve.
  • the mask base body is not completely sealed from the user's face, so that air can also escape in addition to the release valve at a transition from the mask base body to the face.
  • the pressure in the breathing area falls below the limit value of the release valve and the pressure drops.
  • the pressure in the breathing area is regulated to an at least approximately constant value by means of the relief valve. This makes it possible, in particular, to provide an advantageously reliable mouth guard system.
  • a constant pressure can be provided.
  • the tightness of the system can be monitored based on the pressure.
  • the mask base body has at least a partial area which is designed to be permeable to air.
  • the partial area is preferably made of an air-permeable textile.
  • the partial area preferably borders in particular on the outlet area.
  • the partial area serves in particular for a defined release of air in the release area.
  • the partial area is in particular provided in addition to the drain valve, but it would also be conceivable for only the partial area to be provided. In particular, it would be conceivable that over a density of the partial area Flow rate could be controlled. This makes it possible, in particular, to provide an advantageously reliable mouth guard system.
  • a defined exit point can be created. In particular, an arbitrary escape of air can be avoided.
  • the invention is based on a respiratory protection system, in particular a blower respiratory protection system, with the mouth guard device and with at least one blower device for generating a breathing air flow.
  • the at least one blower device is provided to generate an overpressure in the mouth guard device.
  • the at least one blower device is provided for generating a relative excess pressure relative to an environment in the mouth guard device.
  • a “blower device” is to be understood in particular as a device which is intended to actively generate an air flow to supply a user with breathing air.
  • the blower device is intended in particular to supply the air flow to the mouth guard device of the respiratory protection system.
  • the blower device is connected to the mouth protection device of the respiratory protection system via at least one breathing air supply line.
  • the blower device is intended in operation to suck in air from an environment, to clean the air, in particular to filter it, and to actively supply the cleaned air to a user, in particular via the mouth guard device.
  • the blower device is preferably intended to generate an active air flow.
  • the blower device is intended in particular to generate an overpressure air flow.
  • the fan is intended, in particular, to actively generate an air flow.
  • the fan is intended in particular to actively suck in air from an environment and to actively transport the air to the mouth protection device of the respiratory protection system.
  • the fan is in particular formed by an axial fan. This makes it possible, in particular, to provide an advantageously comfortable respiratory protection system. In particular, a reliable supply of breathing air can be achieved.
  • the at least one blower device is provided to generate a volume flow of the breathing air flow of at least 50 l/min and a maximum of 250 l/min.
  • the blower device preferably has one Fan to generate an air flow.
  • the fan is intended, in particular, to actively generate an air flow.
  • the fan is intended in particular to actively suck in air from an environment and to actively transport the air to the mouth protection device of the respiratory protection system.
  • the fan is in particular formed by an axial fan.
  • the fan is preferably intended to generate a volume flow of the air flow of at least 80 l/min and a maximum of 120 l/min. This makes it possible, in particular, to provide an advantageously compact and powerful blower device.
  • the respiratory protection system has at least one breathing air line connected to the blower device, which is intended to guide the breathing air flow and which is intended to divide the breathing air flow between the breathing air supply line and another breathing air supply line.
  • the breathing air line is preferably connected directly to a breathing air outlet of the blower device.
  • the breathing air line is preferably coupled to the breathing air supply line and the further breathing air supply line via a T-connector. In this way, an advantageous division of the breathing air flow can be achieved.
  • the mouth protection device and/or the respiratory protection system according to the invention should not be limited to the application and embodiment described above.
  • the mouth protection device according to the invention and/or the respiratory protection system can have a number of individual elements, components and units that deviate from the number mentioned herein in order to fulfill the functionality described herein.
  • values lying within the stated limits should also be considered disclosed and can be used in any way.
  • the Figure 1 shows a respiratory protection system 10a.
  • the respiratory protection system 10a is formed by a blower respiratory protection system.
  • the respiratory protection system 10a is in particular formed by a blower respiratory protection system of safety class TH3.
  • the respiratory protection system 10a is intended to protect a user 18a from particles such as smoke, aerosols and/or dust.
  • the respiratory protection system 10a can provide additional protection against unpleasant odors and harmful ozone.
  • the respiratory protection system 10a protects the user 18a from organic, inorganic and/or acidic gases in environments with harmful or even toxic gases.
  • the respiratory protection system 10a has a blower device 14a and a mouth guard device 12a.
  • the Blower device 14a is intended to generate a breathing air flow 26a.
  • the blower device 14a is intended to generate a breathing air flow 26a for the mouth guard device 12a.
  • the blower device 14a has a housing unit 58a.
  • the housing unit 58a is formed by a plastic housing.
  • the housing unit 58a has two housing shells 70a, 72a connected to one another, namely a first housing shell 70a and a second housing shell 72a.
  • the first housing shell 70a has two openable covers 74a, 76a, via which an interior of the housing unit 58a can be made accessible.
  • the second housing shell 72a forms a rear side of the housing unit 58a, which faces the user 18a when worn.
  • the second housing shell 72a is concavely curved on an outside.
  • the curvature of the second housing shell 72a is adapted to the curvature of a human's back.
  • the housing unit 58a has a plurality of air inlet openings 78a.
  • the air inlet openings 78a are formed by slots in the first housing shell 70a. During operation, the air inlet openings 78a serve to suck in ambient air by means of an air flow 50a.
  • the housing unit 58a has an air outlet opening 80a.
  • the air outlet opening 80a is formed by a hose connection piece on the first housing shell 70a. During operation, the air outlet opening 80a serves to output the cleaned air stream 50a, in particular a breathing air stream 26a.
  • the breathing air flow 26a is passed on from the air outlet opening 80a to the mouth guard 12a during operation ( Figure 1 , 2 ).
  • the housing unit 58a has a thickness d of less than 70 mm.
  • the housing unit 58a has a thickness d of less than 50 mm.
  • the blower device 14a has a fan 48a for generating an air flow 50a.
  • the blower device 14a is intended to generate an overpressure in the mouth guard device 12a.
  • the fan 48a is intended to generate excess pressure in the mouth guard device 12a.
  • the fan 48a is intended to generate a volume flow of the air flow 50a of at least 50 l/min and a maximum of 250 l/min.
  • the fan 48a is intended to generate a volume flow of the air flow 50a of at least 80 l/min and a maximum of 120 l/min.
  • the blower device 14a is closed by means of the fan 48a a generation of a relative excess pressure relative to an environment in the mouth guard device 12a.
  • the fan 48a is formed by an electric radial fan.
  • the fan 48a is arranged in the housing unit 58a.
  • a main extension plane 56a of the fan 48a extends at least substantially parallel to a main extension plane of the housing unit 58a.
  • the fan 48a is arranged in an upper region of the blower device 14a.
  • the air outlet opening 80a is arranged on an output side of the fan 48a.
  • the blower device 14a also has a control and/or regulating unit 86a for controlling and/or regulating the fan 48a during operation.
  • the control and/or regulating unit 86a is provided in particular for automatically adjusting a power level of the fan 48a.
  • the control and/or regulating unit 86a is intended to set an air flow level of the fan 48a depending on the saturation of a filter element 52a. Furthermore, the control and/or regulating unit 86a is intended in particular for automatic air flow control and air flow adjustment ( Figure 3 ).
  • the blower device 14a has the filter element 52a.
  • the filter element 52a is intended to be flowed through by the air stream 50a.
  • the filter element 52a is formed by a cuboid filter module.
  • the filter element 52a is formed by a particulate matter filter.
  • the filter element 52a is designed as a depth filter, in particular as a lamellar filter.
  • the filter element 52a is arranged in the housing unit 58a.
  • a main extension plane 54a of the filter element 52a extends at least substantially parallel to a main extension plane of the housing unit 58a.
  • the filter element 52a is arranged in a lower region of the blower device 14a.
  • the housing unit 58a accommodates the fan 48a and the filter element 52a.
  • the air inlet opening 78a is arranged on an inlet side of the filter element 52a.
  • the filter element 52a is designed to be replaceable via the cover 74a ( Figure 3 ).
  • the fan 48a is arranged next to the filter element 52a, with the air flow 50a being deflected between the fan 48a and the filter element 52a.
  • the filter element 52a and the fan 48a are arranged together in the housing unit 58a.
  • the Housing unit 58a has an air guide channel 82a which accommodates the filter element 52a and is provided for guiding the air flow 50a between the filter element 52a and the fan 48a.
  • the filter element 52a is fluidly arranged along the air flow 50a in front of the fan 48a.
  • the air flow 50a between the fan 48a and the filter element 52a is deflected by at least approximately 90°.
  • the air flow 50a is redirected in the air guide duct 82a.
  • a flow direction r 1 of the air flow 50a through the filter element 52a is essentially different from a flow direction r 2 of the air flow 50a through the fan 48a.
  • the flow direction r 2 of the air flow 50a through the fan 48a runs parallel to the main extension plane 56a of the fan 48a.
  • the flow direction r 2 of the air flow 50a through the fan 48a runs perpendicular to the main extension plane 56a of the fan 48a.
  • the flow direction r 1 of the air flow 50a through the filter element 52a runs perpendicular to the main extension plane 54a of the filter element 52a.
  • the flow direction r 1 of the filter element 52a is angled at least approximately 90° relative to the flow direction r 2 of the fan 48a ( Figure 3 ).
  • the filter element 52a has the main extension plane 54a.
  • the fan 48a has the main extension plane 56a. It would be conceivable for the main extension plane 54a to run parallel to the main extension plane 56a, with a distance between the main extension plane 54a of the filter element 52a and the main extension plane 56a of the fan 48a being less than a maximum thickness of the filter element 52a. In a parallel configuration, a distance between the main extension plane 54a of the filter element 52a and the main extension plane 56a of the fan 48a would preferably be less than 50 mm, preferably less than 30 mm and particularly preferably less than 10 mm. In the embodiment shown, the main extension plane 54a of the filter element 52a is angled relative to the main extension plane 56a of the fan 48a.
  • An angle between the main extension plane 54a of the filter element 52a and the main extension plane 56a of the fan 48a is more than 80°, preferably more than 120° and particularly preferably more than 160°.
  • the angle between the main extension plane 54a of the filter element 52a and the main extension plane 56a of the fan 48a is at least approximately 165°.
  • a normal vector of the main extension plane 54a of the filter element 52a intersecting the filter element 52a and a normal vector of the main extension plane 56a of the fan 48a intersecting the fan 48a form a smallest angle of at least approximately 15°.
  • the main extension plane 56a of the fan 48a and the main extension plane 54a of the filter element 52a close with an imaginary plane in which the line of intersection between the main extension plane 56a of the fan 48a and the main extension plane 54a of the filter element 52a runs and which runs symmetrically between the filter element 52a and the fan 48a lies, a smallest angle of at least 60°, preferably at least 70°.
  • an intersection of the main extension plane 54a of the filter element 52a and the main extension plane 56a of the fan 48a runs in a close area of the filter element 52a and the fan 48a.
  • a smallest distance between the cutting line and the filter element 52a is in particular less than 15 cm, preferably less than 10 cm and particularly preferably less than 5 cm.
  • a smallest distance between the cutting line and the filter element 52a is smaller than a smallest distance between the fan 48a and the filter element 52a. At least a large part of the normal vectors of the main extension plane 54a of the filter element 52a intersecting the filter element 52a is free of an intersection with the fan 48a. All normal vectors of the main extension plane 54a of the filter element 52a intersecting the filter element 52a are free of an intersection with the fan 48a.
  • the filter element 52a and the fan 48a are arranged next to each other, partially angled to one another ( Figure 3 ).
  • the blower device 14a has an energy storage 84a.
  • the energy storage 84a is formed by an accumulator.
  • the energy storage 84a serves to supply energy to the fan 48a.
  • a main extension plane of the energy storage 84a extends at least substantially parallel to a main extension plane of the housing unit 58a.
  • the energy storage 84a is arranged in a lower region of the blower device 14a.
  • the housing unit 58a accommodates the fan 48a, the filter element 52a and the energy storage 84a.
  • the housing unit 58a serves to protect and align the fan 48a, the filter element 52a and the energy storage 84a.
  • the energy storage 84a is designed to be replaceable via the cover 76a ( Figure 3 ).
  • the respiratory protection system 10a has an external control unit 62a.
  • the external operating unit 62a is formed by a remote control.
  • the operating unit 62a has operating elements 64a and a control and/or regulating unit 66a, which is provided for controlling and/or regulating the blower device 14a.
  • the external operating unit 62a is connected, for example, to the blower device 14a by means of a cable 88a.
  • the control and/or regulating unit 66a of the external operating unit 62a is intended in particular to control the control and/or regulating unit 86a of the blower device 14a depending on an input on the operating elements 64a. For example, a power level of the fan 48a can be adjusted using the controls 64a.
  • the fan 48a can be activated or deactivated using the controls 64a.
  • the external operating unit 62a also has a sensor unit 68a for detecting environmental parameters.
  • the control and/or regulating unit 66a is provided in at least one operating state for controlling and/or regulating the blower device 14a based on the environmental parameters.
  • the control and/or regulating unit 66a is provided in an operation for controlling the control and/or regulating unit 86a of the blower device 14a, with a power level of the fan 48a being adjusted by means of the control and/or regulating unit 86a of the blower device 14a based on the environmental parameters becomes.
  • the sensor unit 68a is intended to detect air quality, ambient pressure and/or oxygen concentration.
  • the respiratory protection system 10a has a vest 60a for wear by a user 18a.
  • the vest 60a is formed by a fabric vest.
  • the blower device 14a is arranged on a back side of the vest 60a.
  • the blower device 14a is detachably connected to the vest 60a.
  • the blower device 14a is worn on the back by a user 18a in operation using the vest 60a.
  • the external operating unit 62a is intended to be worn on a chest by a user 18a.
  • the external control unit 62a is arranged on a front side of the vest 60a. Therefore, environmental parameters in particular in a head area of the user 18a can be detected by means of the sensor unit 68a.
  • the respiratory protection system 10a also has a breathing air line 46a connected to the blower device 14a, which is intended to guide the breathing air flow 26a.
  • the breathing air line 46a connects the blower device 14a with the mouth guard device 12a.
  • the breathing air line 46a is connected to the blower device 14a via the air outlet opening 80a of the blower device 14a.
  • the breathing air line 46a is formed by a hose.
  • the breathing air line 46a is intended to guide the breathing air flow 26a during operation.
  • the mouth guard device 12a has a mask base body 16a.
  • the mask base body 16a is intended to cover a mouth and nose area of the user 18a. Furthermore, the mask base body 16a is intended to at least partially delimit a breathing area 20a. During operation, the mask base body 16a delimits the breathing area 20a together with a face of the user 18a and a separating layer 38a.
  • the mask base body 16a consists at least to a large extent of a flexible material.
  • the mask base body 16a consists entirely of a flexible material.
  • the mask base body 16a consists entirely of a dimensionally unstable material.
  • the mask base body 16a consists at least largely of a textile material.
  • the mask base body 16a consists entirely of a textile material.
  • the mask base body 16a is made of a textile.
  • the mask base body 16a consists entirely of a textile.
  • the mask base body 16a is at least essentially airtight. It would be particularly conceivable for a textile from which the mask base body 16a is made to have a coating that at least reduces air permeability.
  • the mask base body 16a is in particular airtight at least at an absolute pressure of 1 bar, preferably at least 2 bar and particularly preferably at least 3 bar ( Figure 4 ).
  • the mouth guard device 12a also has a sealing element 90a.
  • the sealing element 90a is firmly connected to the mask base body 16a.
  • the sealing element 90a is arranged on an upper edge of the mask base body 16a.
  • the sealing element 90a is intended to seal the mask base body 16a, at least at an upper edge of the mask base body 16a, against a face of the user 18a.
  • the sealing member 90a is provided to seal the breathing area 20a and an exhaust area 40a toward the eyes of the user 18a to avoid airflow into the eyes of the user 18a.
  • the sealing element 90a consists of a foam.
  • the sealing element 90a is of one Foam strips formed.
  • the sealing element 90a is, for example, glued to the mask base body 16a ( Figure 6 ).
  • the mouth protection device 12a has a breathing air supply line 22a connected to the mask base body 16a.
  • the breathing air supply line 22a delimits a breathing air channel 24a which opens into the breathing area 20a and is intended to guide the active breathing air flow 26a.
  • the breathing air supply line 22a is formed by an elastic hose.
  • the breathing air supply line 22a has, for example, an oval cross section. However, another cross section of the breathing air supply line 22a that appears sensible to a person skilled in the art would also be conceivable, such as a circular cross section.
  • the breathing air supply line 22a extends from the breathing air line 46a to the breathing area 20a.
  • the mouth guard device 12a has a further breathing air supply line 22'a, which is redundant to the breathing air supply line 22a and is connected to the mask base body 16a.
  • the further breathing air supply line 22'a delimits a further breathing air channel which opens into the breathing area 20a and is intended to guide an active breathing air flow 26a.
  • the further breathing air supply line 22'a is formed by an elastic hose.
  • the further breathing air supply line 22'a has, for example, an oval cross section.
  • the further breathing air supply line 22'a extends from the breathing air line 46a to the breathing area 20a.
  • the further breathing air supply line 22'a is arranged on a side of the mask base body 16a facing away from the breathing air supply line 22a.
  • the breathing air supply lines 22a, 22'a are intended to be passed on different sides of a head 30a of the user 18a.
  • the further breathing air supply line 22'a has a redundant function to the breathing air supply line 22a.
  • the further breathing air supply line 22'a serves to increase the security of supply with the breathing air flow 26a.
  • the breathing air supply line 22a and the further breathing air supply line 22'a each function independently of one another.
  • the breathing air line 46a connected to the blower device 14a is intended to guide the breathing air flow 26a to the breathing air supply lines 22a, 22'a.
  • the breathing air line 46a is also intended to direct the breathing air flow 26a to the breathing air supply line 22a and the further breathing air supply line 22'a to divide.
  • the breathing air line 46a is coupled to the breathing air supply line 22a and the further breathing air supply line 22'a via a T-connector 108a.
  • the T-connector 108a is intended for placement in a neck region of the user 18a.
  • the mouth guard device 12a also has a fastening strap 28a for fixing the mask base body 16a to the head 30a of the user 18a.
  • the fastening band 28a is formed by an elastic band, such as in particular a rubber band.
  • the fastening band 28a has a width which corresponds at least approximately to a width of the breathing air supply line 22a. Furthermore, an effective length of the fastening band 28a is designed to be adjustable.
  • the fastening band 28a extends from a first end of the mask base body 16a to an opposite second end of the mask base body 16a.
  • the fastening band 28a extends from a first end of the mask base body 16a, at which the breathing air supply line 22a is connected to the mask base body 16a, to an opposite second end of the mask base body 16a, at which the further breathing air supply line 22'a is connected to the mask base body 16a.
  • the fastening band 28a is intended to be guided around the back of the head, in particular in a neck area, when the mouth guard device 12a is worn.
  • the mouth guard device 12a has at least one connection unit 32a for a simultaneous plug connection of the fastening band 28a and the at least one breathing air supply line 22a, 22'a with the mask base body 16a.
  • the mouth guard device 12a has the connection unit 32a and a further connection unit, which is not visible, for a simultaneous plug-in connection of the fastening band 28a in each case with the breathing air supply line 22a and the further breathing air supply unit 22'a with the mask base body 16a.
  • the connecting units 32a are used to pull off or take off the mouth guard device 12a. Coupling takes place in the connection units 32a, for example by means of a plugging movement.
  • the connecting units 32a each have a first coupling element 92a and a second coupling element 94a corresponding to the first coupling element 92a.
  • the first coupling elements 92a of the connection units 32a each form, for example, an interface receptacle, while the second coupling elements 94a of the Connection units 32a each form an interface extension.
  • the first coupling elements 92a of the connecting units 32a are each firmly connected to the mask base body 16a at opposite ends.
  • the second coupling element 94a of the connection unit 32a is firmly formed with a first end of the fastening band 28a and the breathing air supply line 22a.
  • the further second coupling element of the further connection unit is firmly formed with a second end of the fastening band 28a and the further breathing air supply line 22'a.
  • the first coupling elements 92a of the connecting units 32a are each formed by a hose connection.
  • the first coupling elements 92a of the connection units 32a are each intended to lock with the second coupling elements 94a of the connection units 32a.
  • the second coupling elements 94a of the connecting units 32a each have actuating elements 96a for releasing the locking connection ( Figure 1 , 5 ).
  • the mouth guard device 12a has a head fastening strap 98a for additional fixation of the mask base body 16a on the head 30a of the user 18a. Furthermore, an effective length of the head fastening band 98a is designed to be adjustable.
  • the head attachment band 98a extends from a first end of the mask base body 16a to an opposite second end of the mask base body 16a.
  • the head fastening band 98a extends from a first end of the mask base body 16a, at which the breathing air supply line 22a is connected to the mask base body 16a, to an opposite second end of the mask base body 16a, at which the further breathing air supply line 22'a is connected to the mask base body 16a.
  • the head fastening band 98a is intended to be guided around the back of the head, in particular the top of the head, when the mouth guard device 12a is worn.
  • the mouth guard device 12a has a fastening unit 100a and a further fastening unit 100'a for an adjustable fastening of the head fastening band 98a at the ends with the mask base body 16a.
  • the head fastening band 98a is guided to the fastening units 100a, 100'a in an adjustable manner through recesses for fastening.
  • the mouth guard device 12a has an adjustment unit 34a, by means of which at least an effective length of a side edge 36a of the mask base body 16a is at least partially adjustable.
  • an effective length of a side edge 36a of the mask base body 16a is designed to be adjustable from the first end, at which the first coupling element 92a is arranged, to the second end, at which the further first coupling element 92'a is arranged.
  • the side edge 36a runs essentially parallel to a main extension direction of the mask base body 16a.
  • the adjustment unit 34a comprises a cord 102a, in particular an elastic cord, and a cord clamp 104a.
  • the cord 102a of the adjustment unit 34a extends in a channel of the mask base body 16a from the first end of the mask base body 16a to the second end of the mask base body 16a opposite the first end.
  • the cord 102a is attached to the first end and the second end.
  • an effective length of the cord 102a and thus also the side edge 36a of the mask base body 16a is designed to be manually adjustable.
  • an effective length of the cord 102a is designed to be manually adjustable.
  • the mouth guard device 12a has a separating layer 38a connected to the mask base body 16a, which is provided for at least partially separating the breathing area 20a from an outlet area 40a.
  • the outlet area 40a is at least partially delimited by the mask base body 16a.
  • the outlet area 40a is arranged below the breathing area 20a.
  • the mask base body 16a together with the face of the user 18a, delimits a spatial area which is divided into a breathing area 20a and an outlet area 40a by means of the separating layer 38a.
  • the separating layer 38a together with the mask base body 16a, forms a channel that at least partially forms the breathing area 20a and extends to a central area of the mouth guard device 12.
  • the channel formed by the separating layer 38a extends from the breathing air channel 24a and the further breathing air channel to an area of the mouth and/or nose of a user. In the mouth and/or nose area of the user, the breathing area 20a merges into the outlet area 40a.
  • the separating layer 38a is formed in one piece with the mask base body 16a.
  • the separating layer 38a projects perpendicular to the mask base body 16a between the breathing region 20a and the outlet region 40a.
  • the separating layer 38a has a recess 106a in a central region, which Breathing area 20a connects to the outlet area 40a.
  • the separating layer 38a consists at least essentially of a textile material.
  • the separating layer 38a consists entirely of a textile.
  • the separating layer 38a is provided for a defined air flow.
  • the separating layer 38a is intended to guide the breathing air flow 26a past the mouth and/or nose area of a user 18a before reaching the outlet area 40a.
  • the separating layer 38a has the recess 106a in the middle region, which connects the breathing region 20a with the outlet region 40a.
  • the breathing air flow 26a flows from the breathing air channel 24a and the further breathing air channel into the breathing area 20a and from there through the recess 106a into the outlet area 40a.
  • the recess 106a is arranged in a close area of the mouth and/or nose area of a user 18a ( Figure 6 ).
  • the mouth guard device 12a has a release valve 42a, which is intended to regulate a pressure in the breathing area 20a to an at least approximately constant value.
  • the drain valve 42a is formed by an overpressure valve, in particular a one-way overpressure valve, which is intended to open towards an environment from a defined overpressure in the breathing area 20a or the outlet area 40a.
  • the drain valve 42a is intended to allow, in particular to maintain, a defined excess pressure in the breathing area 20a.
  • the drain valve 42a is formed by a mechanical valve.
  • the mask base body 16a is not completely sealed from a face of the user 18a, so that air can also escape in addition to the drain valve 42a at a transition from the mask base body 16a to the face.
  • the pressure in the breathing area 20a can no longer be maintained and the pressure falls below the limit value of the release valve 42a. This can be detected by means of the blower device 14a, in particular based on a load of the fan 48a, and a warning signal can optionally be output to the user 18a. The user 18a can thus be automatically informed that the mouth guard device 12a is being worn incorrectly. Furthermore, the fan 48a can stop automatically when the mouth guard 12a is put on. Under regular conditions, the pressure in the breathing area 20a is regulated to an approximately constant value by means of the relief valve 42a ( Figure 4 ).
  • the mask base body 16a has a portion 44a which is designed to be air-permeable.
  • the partial area 44a is made in particular from an air-permeable textile.
  • the partial area 44a borders directly on the outlet area 40a.
  • the partial area 44a serves for a defined release of air in the outlet area 40a.
  • the partial area 44a is provided in addition to the drain valve 42a, but it would also be conceivable that only the partial area 44a is provided and the partial area 44a takes over the function of the drain valve 42a.
  • Figure 7 shows a blower device 14b of a respiratory protection system.
  • the blower device 14b is intended to generate a breathing air flow 26b.
  • the blower device 14b is intended to generate a breathing air flow 26b for a mouth protection device.
  • the blower device 14b has a housing unit 58b.
  • the housing unit 58b is formed by a plastic housing.
  • the housing unit 58b has two housing shells 70b, 72b connected to one another, namely a first housing shell 70b and a second housing shell 72b.
  • the housing unit 58b has a thickness d of less than 70 mm.
  • the blower device 14b has a fan 48b for generating an air flow 50b.
  • the blower device 14b is intended to generate an overpressure in the mouth guard device 12b.
  • the fan 48b is intended to generate an overpressure in the mouth guard device 12b.
  • the fan 48b is formed by an electric radial fan.
  • the blower device 14b has a filter element 52b.
  • the filter element 52b is intended to be flowed through by the air stream 50b.
  • the filter element 52b is formed by a cuboid filter module.
  • the filter element 52b is formed by a suspended matter filter.
  • the filter element 52b is designed as a depth filter, in particular as a lamellar filter.
  • a main extension plane 54b of the filter element 52b extends at least substantially parallel to a main extension plane of the housing unit 58b.
  • the filter element 52b is arranged in a lower region of the blower device 14b.
  • the housing unit 58b houses the fan 48b and the filter element 52b.
  • the blower device 14b has a further filter element 52'b.
  • the further filter element 52'b is intended to be flowed through by the air stream 50b.
  • the further filter element 52'b is intended to be flowed through by the air stream 50b in front of the filter element 52b.
  • the further filter element 52'b is formed by a cuboid filter module.
  • the further filter element 52'b is formed by an activated carbon odor filter.
  • a main extension plane 54'b of the further filter element 52'b extends at least substantially parallel to a main extension plane of the housing unit 58b.
  • the further filter element 52'b is arranged in a lower region of the blower device 14b.
  • the housing unit 58b accommodates the fan 48b, the filter element 52b and the further filter element 52'b.
  • Air inlet openings 78b are arranged on an inlet side of the further filter element 52'b.
  • the further filter element 52'b is arranged on an input side of the filter element 52b.
  • the fan 48b is arranged next to the filter element 52b, with the air flow 50b being deflected between the fan 48b and the filter element 52b.
  • the further filter element 52'b is also arranged next to the fan 48.
  • the filter element 52b, the further filter element 52'b and the fan 48b are arranged together in the housing unit 58b.
  • the housing unit 58b has an air guide channel 82b which accommodates the filter element 52b and the further filter element 52b' and is provided for guiding the air flow 50b between the filter element 52b and the fan 48b.
  • the filter element 52b and the further filter element 52'b are arranged stacked.
  • the filter element 52b is fluidly arranged along the air flow 50b in front of the fan 48b.
  • the further filter element 52'b is fluid-related arranged along the air flow 50b in front of the filter element 52b.
  • the air flow 50b between the fan 48b and the filter element 52b is deflected by at least approximately 90°.
  • the air flow 50b is redirected in the air guide duct 82b.
  • an air guide duct 82b could be dispensed with.
  • a flow direction r 1 of the air flow 50b through the filter element 52b is essentially different from a flow direction r 2 of the air flow 50b through the fan 48b.
  • a flow direction r 3 of the air flow 50b through the further filter element 52'b is essentially different from a flow direction r 2 of the air flow 50b through the fan 48b.
  • the flow direction r 3 of the air flow 50b through the further filter element 52'b essentially corresponds to the flow direction r 1 of the air flow 50b through the filter element 52b.
  • the flow direction r 2 of the air flow 50b through the fan 48b runs parallel to a main extension plane 56b of the fan 48b.
  • the flow direction r 1 of the air flow 50b through the filter element 52b runs perpendicular to the main extension plane 54b of the filter element 52b.
  • the flow direction r 3 of the air flow 50b through the further filter element 52'b runs perpendicular to the main extension plane 54'b of the further filter element 52'b.
  • the flow direction r 1 of the filter element 52b and the flow direction r 3 of the further filter element 52'b are angled at at least approximately 90° relative to the flow direction r 2 of the fan 48b.

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Claims (13)

  1. Dispositif de protection buccale pour un système de protection respiratoire (10a), en particulier un système de protection respiratoire à ventilateur,
    avec au moins un corps de base de masque (16a) conçu pour couvrir une zone bouche-et/ou-nez d'un utilisateur (18a) et délimitant au moins partiellement une zone de respiration (20a), et
    avec au moins un conduit d'alimentation d'air respirable (22a) relié avec le corps de base de masque (16a) et délimitant au moins un canal d'air respirable (24a) qui débouche dans la zone de respiration (20a) et est conçu pour le guidage d'un flux d'air respirable actif (26a ; 26b),
    le corps de base de masque (16a) étant fait au moins largement d'un matériau pliable,
    caractérisé par
    au moins un autre conduit d'alimentation d'air respirable (22'a) redondante au conduit d'alimentation d'air respirable (22a), relié avec le corps de base de masque (16a) et délimitant au moins un autre canal d'air respirable qui débouche dans la zone de respiration (20a) et est conçu pour le guidage d'un flux d'air respirable actif (26a ; 26b), et
    par au moins une couche séparatrice (38a) qui est reliée avec le corps de base de masque (16a) et est conçue pour une séparation au moins partielle de la zone de respiration (20a) d'une zone de sortie (40a), où la zone de sortie (40a) est délimitée au moins partiellement par le corps de base de masque (16a),
    où la couche séparatrice (38a) forme, conjointement avec le corps de base de masque (16a), un canal qui forme au moins partiellement la zone de respiration (20a) et s'étend jusqu'à une zone centrale du dispositif de protection buccale (12a),
    où le canal formé par la couche séparatrice (38a) s'étend du canal d'air respirable (24a) et de l'autre canal d'air respirable jusqu'à une zone bouche-et/ou-nez d'un utilisateur,
    où dans la zone bouche-et/ou-nez de l'utilisateur la zone de respiration (20a) se fond avec la zone de sortie (40a),
    où la couche séparatrice (38a) saille perpendiculairement au corps de base de masque (16a) entre la zone de respiration (20a) et la zone de sortie (40a), où la couche séparatrice (38a) a dans une zone centrale une échancrure (106a) reliant la zone de respiration (20a) avec la zone de sortie (40a),
    où la zone de sortie (40a) est disposée au moins au-dessous de la zone de respiration (20a).
  2. Dispositif de protection buccale selon la revendication 1,
    caractérisé en ce que
    le corps de base de masque (16a) est fait au moins largement d'un matériau textile.
  3. Dispositif de protection buccale selon la revendication 1,
    caractérisé en ce que
    l'au moins un autre conduit d'air respirable (22'a) est disposé sur un côté du corps de base de masque (16a) qui est détourné du conduit d'air respirable (22a).
  4. Dispositif de protection buccale selon l'une des revendications précédentes, caractérisé par
    au moins une sangle de fixement (28a) pour fixer le corps de base de masque (16a) sur la tête (30a) de l'utilisateur (18a) et
    au moins une unité de liaison (32a) pour une liaison à fiche simultanée de la sangle de fixement (28a) et de l'au moins un conduit d'alimentation d'air respirable (22a, 22'a) avec le corps de base de masque (16a).
  5. Dispositif de protection buccale selon l'une des revendications précédentes, caractérisé par
    au moins une unité de réglage (34a) moyennant laquelle au moins une longueur effective d'un bord latéral (36a) du corps de base de masque (16a) est réalisée de telle manière qu'elle soit au moins partiellement réglable.
  6. Dispositif de protection buccale selon la revendication 1,
    caractérisé en ce que
    la couche séparatrice (38a) est faite au moins sensiblement d'un matériau textile.
  7. Dispositif de protection buccale selon la revendication 1,
    caractérisé en ce que
    la couche séparatrice (38a) est conçue pour un guidage d'air défini,
    où la couche séparatrice (38a) est conçue pour passer le flux d'air respirable (26a) devant la zone bouche-et/ou-nez d'un utilisateur (18) avant d'arriver à la zone de sortie (40a).
  8. Dispositif de protection buccale selon l'une des revendications précédentes, caractérisé par
    au moins une soupape de sortie (42a) conçue pour régler une pression dans la zone de respiration (20a) à une valeur au moins approximativement constante.
  9. Dispositif de protection buccale selon l'une des revendications précédentes, caractérisé en ce que
    le corps de base de masque (16a) comporte au moins une sub-zone (44a) qui est réalisée perméable à l'air.
  10. Système de protection respiratoire, en particulier système de protection respiratoire à ventilateur, avec un dispositif de protection buccale (12a) selon l'une des revendications précédentes et avec au moins un dispositif ventilateur (14a ; 14b) pour générer un flux d'air respirable (26a ; 26b).
  11. Système de protection respiratoire selon la revendication 10,
    caractérisé en ce que
    l'au moins un dispositif ventilateur (14a ; 14b) est conçu pour générer une surpression dans le dispositif de protection buccale (12a).
  12. Système de protection respiratoire selon la revendication 10 ou 11,
    caractérisé en ce que
    l'au moins un dispositif ventilateur (14a ; 14b) est conçu pour générer un débit du flux d'air respirable (26a ; 26b) d'au moins 50 l/min et maximalement 250 l/min.
  13. Système de protection respiratoire selon l'une des revendications 10 à 12,
    caractérisé par
    au moins un conduit d'air respirable (46a) qui est relié avec le dispositif ventilateur (14a ; 14b), qui est conçu pour le guidage du flux d'air respirable (26a ; 26b) et est conçu pour repartir le flux d'air respirable (26a ; 26b) sur le conduit d'alimentation d'air respirable (22a) et l'autre conduit d'alimentation d'air respirable (22'a).
EP19218878.7A 2019-12-20 2019-12-20 Dispositif de protection buccale pour un système de protection respiratoire Active EP3838348B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US17/787,494 US11617906B2 (en) 2019-12-20 2019-12-18 Mouth protection device for a respiratory protection system
EP19218878.7A EP3838348B1 (fr) 2019-12-20 2019-12-20 Dispositif de protection buccale pour un système de protection respiratoire
PCT/EP2020/087025 WO2021123168A1 (fr) 2019-12-20 2020-12-18 Dispositif de protection buccale pour un appareil de protection respiratoire
CN202080088982.8A CN114845783B (zh) 2019-12-20 2020-12-18 用于呼吸保护系统的口部保护装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19218878.7A EP3838348B1 (fr) 2019-12-20 2019-12-20 Dispositif de protection buccale pour un système de protection respiratoire

Publications (2)

Publication Number Publication Date
EP3838348A1 EP3838348A1 (fr) 2021-06-23
EP3838348B1 true EP3838348B1 (fr) 2024-03-27

Family

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EP19218878.7A Active EP3838348B1 (fr) 2019-12-20 2019-12-20 Dispositif de protection buccale pour un système de protection respiratoire

Country Status (4)

Country Link
US (1) US11617906B2 (fr)
EP (1) EP3838348B1 (fr)
CN (1) CN114845783B (fr)
WO (1) WO2021123168A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11701529B2 (en) * 2021-01-08 2023-07-18 Changzhou Shine Science & Technology Co., Ltd. Air supply mechanism with lower air duct, headgear and electric protective equipment
DE202022105022U1 (de) 2022-09-06 2022-09-14 Optrel Holding AG Mundschutzvorrichtung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US642166A (en) 1899-08-14 1900-01-30 Udolph Sherman Protective device for artisans.
FR1003623A (fr) 1947-02-03 1952-03-20 Perfectionnements aux masques des appareils respiratoires à surpression
JPS50131888U (fr) 1974-02-12 1975-10-29
US3910831A (en) * 1974-03-18 1975-10-07 Alfred G Helart Hydrogen generating system
US5460174A (en) 1994-01-24 1995-10-24 Chang; Huang Oxygen supplying system having flow control throttle
US20030217751A1 (en) * 2002-05-24 2003-11-27 Patrick Stuart Lane Washable dust mask
KR20040089827A (ko) 2003-04-15 2004-10-22 김규종 통기성 격벽이 있는 기능성 마스크
KR100684335B1 (ko) 2005-12-22 2007-02-20 최영락 건강 마스크
KR101568648B1 (ko) * 2015-04-14 2015-11-12 주식회사 크리벨류스 오염물질 흡입 방지용 마스크
CN105077745B (zh) * 2015-08-18 2018-03-23 京东方科技集团股份有限公司 一种口罩及头戴防护设备
US11388939B2 (en) * 2016-09-21 2022-07-19 Marleen Myers Bergman Earless filter mask
CN107115603A (zh) * 2017-04-05 2017-09-01 东华大学 一种呼气‑吸气隔开的雾霾净化口罩
CN107007950A (zh) * 2017-05-15 2017-08-04 浙江大学 一种主动式辅助呼吸面罩

Also Published As

Publication number Publication date
US20230039501A1 (en) 2023-02-09
CN114845783A (zh) 2022-08-02
WO2021123168A1 (fr) 2021-06-24
US11617906B2 (en) 2023-04-04
CN114845783B (zh) 2023-08-08
EP3838348A1 (fr) 2021-06-23

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