WO2020055106A1 - Masque facial magnétique pouvant être fixé/détaché d'un tube de raccordement d'entrée d'air - Google Patents

Masque facial magnétique pouvant être fixé/détaché d'un tube de raccordement d'entrée d'air Download PDF

Info

Publication number
WO2020055106A1
WO2020055106A1 PCT/KR2019/011732 KR2019011732W WO2020055106A1 WO 2020055106 A1 WO2020055106 A1 WO 2020055106A1 KR 2019011732 W KR2019011732 W KR 2019011732W WO 2020055106 A1 WO2020055106 A1 WO 2020055106A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
mask
magnetic body
air inlet
face mask
Prior art date
Application number
PCT/KR2019/011732
Other languages
English (en)
Korean (ko)
Inventor
최경수
조범연
배은영
김학용
장성근
Original Assignee
비클시스템주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 비클시스템주식회사 filed Critical 비클시스템주식회사
Publication of WO2020055106A1 publication Critical patent/WO2020055106A1/fr

Links

Images

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
    • 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
    • A62B18/086—Adaptations for consuming refreshments without unmasking
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/12—Respiratory apparatus with fresh-air hose
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/04—Couplings; Supporting frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/0221—Mounting means for PM, supporting, coating, encapsulating PM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0252—PM holding devices
    • H01F7/0263—Closures, bags, bands, engagement devices with male and female parts

Definitions

  • the present invention relates to a face mask, and more particularly, to a face mask that is easy to desorption with an air purification unit provided separately to supply purified air, and improves usability due to natural intake and exhalation of the user. .
  • Hazardous substances may include pollen, yellow dust, and various bacteria that cause allergies, as well as various fumes or fine dust. When these harmful substances penetrate into the respiratory tract, they cause various respiratory diseases and become a serious problem.
  • gas mask or a dust mask as a type of air purifying device that can be carried by an individual, but in the case of a gas mask, it is large in size, inconvenient to carry, not easy to use, and acts while worn There is a problem that the limitation occurs, and in the case of a dust mask, it is easy to carry and wear, but has a problem in that it is difficult to use for a long time due to limitations in the purification ability.
  • the present invention is to solve the above technical problem, it is an object of the present invention to provide a face mask that is easy to wear by a user and easily inhaled and exhaled by a user.
  • the present invention is a face mask that is worn on a user's respiratory tract and has at least one flap valve that separates a first fluid space from a second fluid space, wherein the flap valve is the first fluid space and the second when the user exhales.
  • the fluid space is communicated, and when the user intakes air, the first fluid space and the second fluid space are closed and separated, but when the first fluid space is decompressed to a predetermined pressure or less, the first fluid space and the second fluid It provides a face mask for emergency opening of space.
  • the flap valve communicates the first fluid space and the second fluid space during exhalation of the user, and an exhalation valve that closes and separates the first fluid space and the second fluid space during intake of the user, and the intake of the user
  • an exhalation valve that closes and separates the first fluid space and the second fluid space during intake of the user, and the intake of the user
  • the mask body is worn on the user's respiratory tract and forms a first fluid space between the inner surface and the user's respiratory tract; And a mask shell disposed on the outside of the mask body, a part of the inner surface being spaced a predetermined distance from the outer surface of the mask body to form a second fluid space through which air flows. It provides a facial mask disposed on the outer surface.
  • one side communication port for the exhalation valve and the other communication port for the emergency valve communicating the first fluid space and the second fluid space are formed on the mask body, and the flap valve is provided on an outer surface of the mask body.
  • the one free end and the other free end provide a facial mask provided with a flexible flap that is bent between an inner surface of the mask shell and an outer surface of the mask body according to a change in pressure of the first fluid space.
  • the one side communication port for the exhalation valve is provided with a face mask formed with a support rib for preventing one free end of the exhalation valve from bending and opening toward the first fluid space even when the decompression of the formation of the first fluid space is reduced to the predetermined pressure or less.
  • the other free end for the emergency valve is bent toward the first fluid space to provide an emergency face mask.
  • the other free end for the emergency valve provides a face mask thicker than one free end for the exhalation valve.
  • the other free end for the emergency valve is reinforced to prevent the other free end for the emergency valve from being bent toward the first fluid space even when the decompression of the formation of the first fluid space is less than the predetermined pressure.
  • a face mask having ribs is provided.
  • a body penetrating portion is formed so that a part of the first fluid space is penetrated to the outside, and is disposed to shield the body penetrating portion, and an adsorption filter for removing moisture or odor in the first fluid space is further provided. It provides a facial mask containing.
  • the right and left sides of the mask are provided with a binding portion for wearing a wear band for wearing on the user's head or a wear ring for wearing on the user's ear, and the binding portion provides a face mask that is shielded from the outside by a cover for the binding portion do.
  • the mask body is provided with at least one air inlet; An air purification unit that supplies purified air; A connection pipe communicating the air purification unit and the air inlet; And it provides a face mask further comprising a connecting tube detachable portion for connecting the connecting tube and the air inlet to be magnetically detachable.
  • connection tube detachable portion is provided with a first magnetic body
  • the air inlet provides a face mask provided with a second magnetic body magnetically coupled to the first magnetic body
  • the connecting tube detachable portion the detachable main body is empty inside; A connector connecting portion to which the connector is connected; And a bent portion bent to be inserted into the air inlet. It includes, and provides a facial mask provided with an annular first magnetic body in the bent portion.
  • a face mask having a fitting rib larger than the hollow inner diameter of the first magnetic body is provided to force the first magnetic body to fit.
  • first magnetic body and the second magnetic body provide a face mask magnetically coupled in a spaced apart state.
  • a face mask in which an insert having a more elliptical shape compared to a shape of a second magnetic body is formed between the first magnetic body and the second magnetic body.
  • the insert secures the second magnetic body and provides a face mask that is a second magnetic body fixing cover connected to the mask body for partially or wholly covering.
  • an inner silicone pad is provided with an air communication port corresponding to the air inlet, the air communication port is formed smaller than the outer diameter of the first magnetic body to face the mask to seal the outside air inflow is blocked to provide.
  • the mask body is provided with at least one air inlet;
  • An inner silicone pad that prevents the mask body from directly contacting a user's facial skin and seals the outside air from entering the gap;
  • An air purification unit that supplies purified air;
  • a connection pipe communicating the air purification unit and the air inlet;
  • a connecting tube detachable part for connecting the connecting tube and the air inlet to be magnetically detachable.
  • a first magnetic body is provided at the connection pipe detachable part, and the inner silicone pad provided with an air communication port corresponding to the air inlet is interposed in the mask body, and the air communication port is formed smaller than the outer diameter of the first magnetic material.
  • the facial mask of the present invention has an advantage in that several people can share the air purification unit, since the air purification unit is configured to be detachable from the facial mask.
  • the air communication port of the inner silicone pad is a highly flexible material that is extended only by magnetic force, and is easily deformed to correspond to the insertion and rotation of the detachable part, and is restored to the original air communication port size when detached with elastic restoring force, providing excellent air blocking sealing. And, even if the connector is moved, it is possible to significantly reduce the transmission to the mask.
  • the air purifying unit that purifies and supplies the external air is easily worn on the user's body to enable outdoor activities, thereby improving usability and convenience.
  • the emergency valve is opened according to the degree of decompression in the first fluid space provided by the user's intake when an emergency occurs, such as when a large amount of intake is required while the user wears it, or when a problem occurs in the inflow of air from the air purification unit. It has the effect of preventing the occurrence of safety accidents in case of emergency by enabling emergency intake.
  • FIG. 1 is a perspective view showing an embodiment of a face mask according to the present invention and a connection state of an air purification unit
  • FIG. 2 is a perspective view of a main part showing an air purification unit in the configuration of FIG. 1;
  • FIG. 3 is an exploded perspective view of a main part illustrating the air purification unit of FIG. 2 in more detail;
  • FIG. 4 is an exploded perspective view of a main portion illustrating a power supply unit in the configuration of FIG. 1,
  • FIG. 5 is a configuration diagram illustrating a process in which the external air is purified and moved to one embodiment of the face mask according to the present invention
  • FIG. 6 is a bottom perspective view showing an air intake in the configuration of the air purification unit
  • FIG. 7 is a perspective view showing an embodiment of a face mask according to the present invention.
  • FIG. 8 is an exploded perspective view of FIG. 7,
  • FIG. 9 is a cross-sectional view taken along the line A-A of FIG. 7,
  • FIG. 10 is an exploded perspective view showing a mask body and a flap valve in the configuration of FIG. 7,
  • FIG. 11 is a partial cut-away perspective view taken along the line B-B of FIG. 7,
  • FIG. 12 is a view showing another embodiment of the face mask according to the present invention.
  • fixing groove 120 mask outer shell
  • binding cover 150 flap valve
  • connector detachable portion 161 detachable body
  • fitting rib 166 first magnetic material
  • FIG. 1 is a perspective view showing an embodiment of a facial mask according to the present invention and a connection state of an air purification unit
  • FIG. 2 is a perspective view of main parts illustrating an air purification unit in the configuration of FIG. 1
  • FIG. 3 is a view of FIG. 2
  • FIG. 4 is a main part separation perspective view illustrating the power supply part of the configuration of FIG. 1
  • FIG. 5 is an embodiment of a face mask according to the present invention in which external air is purified It is a configuration diagram illustrating a process to be moved
  • Figure 6 is a bottom perspective view showing the air intake of the configuration of the air purification unit.
  • One embodiment of the facial mask according to the present invention is provided separately to the user by receiving purified air from the air purification unit 1 which is provided separately and is purified by inhaling external air, as shown in FIGS. 1 to 6 do. Accordingly, the user can safely perform the external activity by being provided with purified air at a higher purification rate, as well as being able to wear the face mask according to the present invention made of lighter weight.
  • the air purification unit 1 is a main body 1a including a driving unit 10, a diffusion unit 20, a purification unit 30, a control unit 50 and a power supply unit 60.
  • the main body (1a) is connected to the purified air through the purification unit 30 is connected to the connector (90), and connected to the connector (90) to help the purified air to move to the user's respiratory
  • the facial mask 100 according to an embodiment of the invention and the hook member 200 that is connected to the connector 90 and is wrapped around the neck and supports the main body 1a may be largely divided, and for each component Looking more specifically through the illustrated drawings are as follows.
  • the main body 1a includes a driving unit 10 for sucking outside air, a diffusion unit 20 for diffusing air sucked by the driving unit 10, and air diffused by the diffusion unit 20
  • Purification unit 30 for purifying the power supply unit for operating the driving unit 10 while being controlled by the control unit 50 and the control unit 50 for controlling the display unit displaying the operation state of the driving unit 10 and the device 10 60) is accommodated and purifies the outside air according to the user's control and discharges it to the required place.
  • the housing is provided to surround the above-described driving unit 10, diffusion unit 20, purification unit 30, display unit, control unit 50, and power unit 60.
  • the housing consists of an upper housing 2 and a lower housing 4 detachable from the upper housing 2.
  • the lower housing 4 is formed with an air intake port 6 to allow external air to flow into the main body on the bottom surface, and the bottom surface of the upper housing 2 is provided for movement of air introduced through the air intake port 6. It consists of a pierced state.
  • a plurality of protrusions may be formed on the surface of the air intake 6 without blocking the air intake 6, and these protrusions may have various patterns, and may be formed in the form of a dot or a line. .
  • the air intake 6 is not clogged on the bottom surface, but air is introduced into the injured gap as the air is introduced at a predetermined interval from the bottom surface by the protrusion, and thus the air intake 6 ).
  • the upper housing 2 is formed with an entrance hole 5 on the upper front side, and when the lower housing 4 is separated from the upper housing 2, the above-mentioned entrance hole 5 is exposed to the outside, and such an entrance hole 5 ), The filter 33 of the purification unit 30 can be detached into the upper housing 2.
  • the upper housing 2 may be provided with a display unit on the upper surface or the front surface, and the display unit may be displayed outside under the control of the control unit 50 installed inside the upper housing 2 to guide the user to the state of the device, The device can be controlled.
  • the display unit may include a switch capable of operating on / off of a power supply, a switch capable of adjusting the air volume of the driving unit 10, and the like, and the status of the power supply unit 60 and the replacement of the filter 33 may be provided.
  • the warning display, the air volume of the driving unit 10, and the like may be displayed step by step.
  • the driving unit 10 Inside the main body 1a, the driving unit 10, the diffusion unit 20, the purification unit 30, the control unit 50, and the power supply unit 60 are sequentially received from bottom to top, and the driving unit 10 is an upper housing. (2) is located at the bottom from the inside, the drive unit 10 is connected to the drive motor 12 and the lower side of the drive motor 12, the drive fan 13 rotates according to the operation of the drive motor 12 When the driving fan 13 is rotated, the outside air moves upward through the lower perforated portion of the upper housing 2 through the air intake 6 of the lower housing 4.
  • the diffusion unit 20 is positioned above the driving unit 10 to diffuse the air introduced through the driving unit 10 to the upper purification unit 30 so that the air is uniformly moved to the purification unit 30. .
  • the diffuser 20 is formed with an axial hole so that the drive motor 12 passes through the center, and a diffuser 22 with a plurality of wings that diffuses air sucked from the drive unit 10 upward along the outer circumference. Can be configured.
  • the shaft hole and the outer circumference may be connected by radial ribs, and the diffuser 22 may allow air sucked from the driving unit 10 to be evenly moved upwards without being affected by vibrations of the driving unit 10. .
  • the purification unit 30 is located above the diffusion unit 20 to purify the air diffused from the diffusion unit 20 and moved.
  • the purification unit 30 may correspond to the shape of the diffuser 22, and may be composed of a circular filter 33 made of a casing and filter paper so as to correspond to the circular diffuser 22 as in the illustrated drawings. have.
  • the driving unit 10, the diffusion unit 20, and the purification unit 30 described above are respectively wrapped and installed through the driving unit cover 11, the diffusion unit cover 21, and the purification unit cover 31 through which the upper and lower portions pass,
  • the driving part cover 11, the diffusion part cover 21, and the purification part cover 31 are coupled to maintain airtightness with each other, so that air introduced from the outside through the driving part 10 is not unnecessarily leaked, and the diffusion part 20 It is preferably configured to be purified through the purification unit 30 and moved to a required place.
  • the purification part cover 31 is formed with an upwardly projecting outlet 32, air purified through the filter 33 is guided and moved to the outlet 32, and these outlets 32 are connected later. The purified air is sent to the tube 90.
  • the outlet 32 is formed to protrude on opposite sides of the upper part of the purification part cover 31, and is located on both sides of the main body 1a, and is connected to the inside of the upper housing 2 to be described later.
  • the purified air discharged from the outlet 32 in connection with is moved through the connection pipe 90.
  • the air temperature control member capable of heating or cooling the purified air to a predetermined temperature before the air purified through the purification unit 30 is moved to the connection pipe 90 to be described later. May be further provided.
  • the air temperature control member may adjust the temperature of the purified air through chemical reaction or heat absorption and heat generation by an electronic device.
  • the control unit 50 controls the driving of the above-described driving unit 10 while controlling the power supply unit 60 to be described later, checks the state of the power supply unit 60, and guides through the display unit when charging is necessary, to the power supply unit 60 When external power is applied, the charging and driving of the power supply unit 60 are operated, and the use time or the pollution state of the purification unit 30 is determined and the replacement information or warning of the purification unit 30 is displayed through the display unit. Is displayed, it is determined whether or not the driving unit 10 is abnormal and guided through the display unit, and by controlling the driving unit 10 to control the rotational speed of the driving fan 13 step by step, to the controlled driving fan 13 step by step. It is possible to guide the user through the display unit on the state of the air volume.
  • the power supply unit 60 applies power to the driving unit 10 under the control of the above-described control unit 50, the power supply unit 60 may be, for example, a lithium ion battery, and the power supply unit 60 has an upper housing 2 ), And can be configured to be replaceable, and can be configured to be supplied with external power through an adapter or to be charged using USB.
  • the connecting pipe 90 serves to move the air that is purified and discharged from the inside of the above-described main body 1a to a required portion, and may be configured in a shape of a pipe having an inner diameter of a predetermined size in which the pipe is formed. .
  • the connecting pipe 90 may be formed of a flexible synthetic resin material having a predetermined length or a tube made of a shape memory alloy material.
  • the connecting pipe 90 may be configured as a pair, and one end may be respectively connected to opposite sides of the upper surface of the upper housing 2, and one end of the connecting pipe 90 penetrated through the upper surface of the upper housing 2 may be used.
  • the purified air discharged from the outlet 32 may be supplied by being connected or proximate to the outlet 32 of the above-described purification unit cover 31.
  • the facial mask 100 is purified air discharged through the connector 90 is connected to the other end of the above-described connector 90 is connected to the main body (1a) Allows simultaneous inhalation through the user's mouth or nose or mouth and nose.
  • the shape of the face mask 100 need not be determined by any one, and may be modified in various forms and installed on the user's face.
  • the face mask 100 may further be provided with a separate connection member that can be fixed to a part of the user's body, and a ventilation device may be further provided on one side of the face mask 100 or a separate purification device may be further provided. have.
  • the face mask 100 may be made of a cold-reducing material, may be composed of a multi-layer fabric treated with a UV-blocking coating, and composed of a multi-layer fabric, and made of an air nozzle connected to the above-described connecting tube 90 between the multi-layer fabrics.
  • a connector detachable portion 160 (see FIG. 8) may be further provided.
  • the hook member 200 is configured to be wrapped around the user's body while being connected to one point of the connector 90 described above, the connector 90 is stretched or the facial mask 100 due to the weight of the body 1a ) Prevents the connection pipe 90 from being unnecessarily separated.
  • An embodiment of the hook member 200 is a neck portion 210 located at the back of the body connected to the user's neck, and extends from both ends of the neck portion 210 through the above-described connector 90 and connector 430 It may be configured as an extension 220 that is placed on the shoulder of the user while being connected.
  • the neck portion 210 may be configured to be detachable through a coupling member such as a magnet or a hook or velcro tape while the central portion is separated and separated for convenience of use.
  • a coupling member such as a magnet or a hook or velcro tape
  • the extension part 220 is placed on the user's shoulder, and the neck part 210 is located on the back of the body connected to the user's neck, the bottom surface of the extension part 220 is positioned on the user's shoulder.
  • the load applied to the user is distributed from the main body 1a connected to the hook member 200 to reduce the burden on the user's musculoskeletal system.
  • the extension portion 220 is made of, for example, a part of the wrinkle portion 221, and is lengthened by stretching. It may be formed to be variable.
  • the extension 220 may be configured in the shape of a strip having a flexible wide gap, and distributes the weight of the device to the shoulder. If necessary, a part of the extension part 220 may further include a non-slip member such as silicone, which can prevent slipping on the inner surface contacting the body.
  • a non-slip member such as silicone
  • a holder member such as a ring or a belt may be further provided on either side of the main body 1a together with the above-described hook member 200 so that the main body 1a can be supported.
  • the body may be more effectively supported together with the hook member 200 by fixing it using any part of the body such as the waist, and when the holder member is provided, the hook member 200 is removed from the connector 90
  • the main body 1a may be fixed to a coating or body using only the holder member.
  • the air purification unit 1 is not limited to the above-described configuration examples, but can be modified and modified within a range not departing from the gist of the present invention, and such modifications and modifications are applied to the technical spirit of the present invention. It should be regarded as belonging.
  • the air purification unit 1 may be provided with an intake flow path so that external air can be introduced into the main body even when the air intake 6 is in contact with a foreign object. This will be described based on FIG. 6.
  • the air intake 6 is provided with an intake passage on its surface, so that even when the lower portion of the lower housing 4 contacts foreign matter, the outside air passes through the air intake 6 through the intake passage 6, and thus the main body 1a ).
  • the air intake 6 is provided with an intake passage on its surface so that external air can flow smoothly into the body 1a.
  • the intake passage forms a plurality of protrusions 6a and grooves 6b having an uneven structure on the surface of the air intake 6, and the grooves 6b are inside the main body 1a. Even if the foreign matter comes into contact with the air intake port 6, the protrusion 6a floats the foreign matter, so that the external air flows smoothly into the interior of the main body through the groove 6b, so that the user can easily breathe.
  • FIG. 7 is a perspective view showing an embodiment of a face mask according to the present invention
  • FIG. 8 is an exploded perspective view of FIG. 7.
  • One embodiment 100 of the facial mask according to the present invention as referenced in Figures 1 to 8, the mask body 110, and the mask sheath 120 and the mask body 110 is partially attached,
  • the mask body includes an inner silicone pad 130 that prevents direct contact with the user's facial skin and seals the outside air from entering the gap.
  • the mask body 110 serves to divide the first fluid space S1 and the second fluid space S2, which will be described later, while forming the skeleton of the facial mask according to the present invention, as shown in FIGS. 7 and 8. Do it.
  • the second fluid space S may be widely interpreted as a region distinct from the first fluid space S.
  • the mask body 110 is worn on the user's face to cover the respiratory tract of the user's face, and may be spaced apart from the user's face to form a first fluid space S1 between the user's respiratory tract.
  • the separation distance between the inner surface of the mask body 110 constituting the first fluid space S1 and the user's face is not limited, but may be a distance that can provide a space in which exhalation and inhalation of the user can be easily achieved. have.
  • a body penetrating part 111 partially opened in the front-rear direction may be formed, and preferably, may be formed under the body.
  • a communication port 115 provided to communicate with the second fluid space S2 to be described later may be formed on the mask body 110.
  • At least one communication port may be formed, and a flexible flap valve may be combined.
  • the flexible flap valve may also be provided with at least one.
  • the flexible flap valve can serve as an exhalation valve or an emergency valve, and can also serve as two roles.
  • the communication port 115 may include one side communication port 116 for exhalation valves formed on the right side and the other communication port 117 for emergency valves formed on the left side when viewed from the front centered on the center.
  • a fixing groove 118 for fixing a flap body 153 to be described later may be provided between one communication hole 116 and the other communication hole 117.
  • air communication ports 134 may be provided at both right and left ends of the mask body 110 to communicate with the first fluid space S1.
  • the air communication port 134 serves as an inlet through which air purified from the air purification unit 1 described later flows in.
  • the mask skin 120 serves to shield the outer surface of the mask body 110.
  • the mask shell 120 may form a second fluid space S2 between the inner surface and the outer surface of the mask body 110.
  • the outer surface of the mask body 110 and the inner surface of the mask shell 120 may be provided to be spaced apart by a volume occupied by the second fluid space S2.
  • the discharge slit 125 may be formed downwardly from side to side so that air according to a user's exhalation is discharged from the second fluid space S2 under the mask shell 120. Therefore, the user's exhalation flowed from the first fluid space S1 into the second fluid space S2 is discharged downward to the lower side of the mask sheath 120, so that the user's exhalation is moist to the upper side where the user's eyes are located. Can be prevented from being discharged immediately.
  • the left and right ends of the mask sheath 120 may be provided with a binding band 124 to which a wear band for wearing to a user's head (especially to cover the entire occipital region) or a wearing ring for wearing to a user's ear is attached.
  • the binding portion 124 may be shielded from the outside by a binding portion cover 142 detachably provided on the outer surface of the mask shell 120.
  • the mask body 110 and the mask sheath 120 made of such a configuration may be mutually coupled by at least one of a separate fastening member or an inner silicone pad 130.
  • the separate fastening member means a fastening method consisting of a groove and a protrusion, a fastener such as a screw or a bolt.
  • the inner silicone pad 130 is formed between the outer surface of the mask body 110 and the inner surface of the mask shell 120.
  • the fluid space S2 may be provided to be completely sealed with the outside except for the discharge slit 125 and the communication port 115 described above.
  • the inner silicone pad 130 is partially extended to the inner surface of the mask body 110, so that the inner silicone pad 130, not the inner surface of the mask body 110, directly contacts the user's face. By doing so, it is possible to improve the user's wearing comfort.
  • the inner silicone pad 130 is provided to surround the rim of the mask body 110 and the mask sheath 120 at the same time as a part of the rim portion, thereby serving to mutually couple the mask body 110 and the mask sheath 120. You may.
  • the inner silicone pad 130 may perform an additional role of imparting a unique design feeling by forming the appearance of the outer edge portion of the face mask according to the present invention.
  • the upper portion of the inner silicone pad 130 may be formed in a shape that substantially covers a user's nostril, and the middle portion includes a first fluid space S1 and a first agent formed between the mask body 110 and the mask sheath 120. 2
  • a large hollow portion 131 is formed for mutual communication of the fluid space S2, and air communication ports 134 corresponding to the above-described air inlets 113 may be formed at both right and left ends.
  • an embodiment 100 of the facial mask according to the present invention is disposed between the outer surface of the mask body 110 and the inner surface of the mask shell 120, the first formed according to the user's exhalation or inspiration
  • a flap valve 150 that opens and closes the first fluid space S1 and the second fluid space S2 according to the pressure of the fluid space S1 may be further included.
  • the user's exhalation refers to air discharged from the user by the user's exhalation
  • the user's inspiration refers to air supplied to the user by the user's inspiration
  • FIG. 9 is a cross-sectional view taken along line A-A in FIG. 7.
  • the air supplied by the user's intake air is air supplied from the air purification unit 1 provided separately from the embodiment 100 of the face mask according to the present invention, as shown in FIGS. 1 and 9. That is, in the embodiment 100 of the facial mask according to the present invention, a separate filter is not required for the purification of contaminated external air, and the air previously purified by the air purification unit 1 by the user's intake action Is introduced into the first fluid space (S1) and immediately enters the user's respiratory system.
  • the air purifying unit 1 may be provided with a purifying unit 30 for purifying while inhaling and diffusing external air, and an air temperature regulating member for heating or cooling the purified air.
  • a purifying unit 30 for purifying while inhaling and diffusing external air
  • an air temperature regulating member for heating or cooling the purified air.
  • the purification unit 30 may be a filter member that filters out fine dust, pollen, yellow dust, and various bacteria while passing the external air introduced therein.
  • At least one air inlet 113 communicating with the first fluid space S1 may be formed in the mask body 110 so that the purified air purified by the air purification unit 1 is supplied.
  • each of the left and right ends of the mask body 110 is provided one by one, and the purified air from the air purification unit 1 is supplied to the air inlet 113
  • Each of the connecting pipes 90 may be connected as much as possible.
  • the connecting pipe 90 is detachably connected to the air inlet 113 by a connecting pipe detachable portion 160.
  • it is good to be easily detachable by a magnetic coupling type for easy detachment.
  • the magnetic desorption function of the present invention provides a function to easily and easily attach a connector connected to the air purification unit to the mask whenever the user wears a mask from the user's standpoint, and easily remove and detach the connector and mask even when the mask is removed. So that you can take off the mask.
  • face masks have different face shapes and sizes for each user, and it is difficult to be used by multiple people when considering hygiene aspects. If the air purifying unit is not separated from the facial mask, an air purifying unit is required for each mask.
  • the facial mask of the present invention has an advantage that the air purification unit can be shared by multiple people since the air purification unit is configured to be detachable from the facial mask.
  • connection pipe detachment unit 160 is a detachable main body 161 having an empty interior, a connection pipe connection unit 162 to which the connection pipe 90 is connected, and air. It may include a bent portion 163 bent to be inserted into the inlet 113.
  • the bent portion 163 of the connector desorption unit 160 is provided with an annular first magnetic body 166, which is not limited to a simple attachment and detachment by a user, and the air inlet 113 has a first magnetic body ( 166) and a second magnetic body 167 that is magnetically coupled may be provided.
  • the magnetic force formed by the first magnetic body 166 and the second magnetic body 167 is generated by the magnetic force when the user moves the bent portion 163 of the connector detachable portion 160 close to the air inlet 113. It is preferable that a magnetic force is formed such that the bent portion 163 of the connection pipe detachable portion 160 can be inserted into the air inlet 113 side.
  • the first magnetic body 166 may be forcibly fitted on the outer circumferential surface of the bent portion 163. To this end, the first magnetic body 166 so that the first magnetic body 166 is not separated on the outer circumferential surface of the bent portion 163 by the insertion pressure or the removal pressure of the connector detachable portion 160 to the air inlet 113 ) A larger fitting rib 164 than the hollow inner diameter may be formed.
  • the first magnetic body 166 and the second magnetic body 167 may be provided to be magnetically coupled in a spaced apart state when the bent portions 163 of the connector detachable portion 160 are inserted into the air inlet 113. You can.
  • first magnetic body 166 and the second magnetic body 167 are configured in a passage for supplying purified air supplied from the air purification unit 1, the first magnetic body 166 and the first magnetic body 166 and the second magnetic body 2 This is to prevent the magnetic body 167 from colliding with each other so that plating or magnetic powder is generated and flows into the user's respiratory tract.
  • an insert may be inserted between the first magnetic body and the second magnetic body, and the insert may open a portion of the second magnetic body and cover a portion.
  • An insert 168 may be formed between the first magnetic body 166 and the second magnetic body 167, and the insert 168 is a second magnetic body fixing cover connected to the mask body to fix the second magnetic body. Can.
  • the insert 168 may partially cover the second magnetic body 167, but is not limited to covering the whole. When partially covered, it may be formed in an oval shape more than the shape of the second magnetic body.
  • the ellipse of the insert 168 has the largest diameter equal to or larger than the outer diameter of the second magnetic material, and the smallest diameter formed smaller than the outer diameter or inner diameter of the second magnetic material.
  • the air communication port 134 of the inner silicon pad 130 is preferably formed smaller than the outer diameter of the first magnetic body.
  • the inner circumferential surface of the air communication port of the first magnetic body and the inner silicone pad abuts, and the air communication port of the inner silicone pad expands and adheres to the outer diameter size of the first magnetic body to serve as a sealing function to block external air. have.
  • the inner circumferential surface of the air communication port is designed to be smaller than the outer diameter of the first magnetic body outside the detachable part, so that the air communication port expands and adheres to the external air even though it is frequently attached and detached.
  • the air communication port of the inner silicone pad is a highly flexible material that is extended only by magnetic force, and is easily deformed to correspond to the insertion and rotation of the detachable part, and is restored to the original air communication port size when detached with elastic restoring force.
  • the present invention is magnetically coupled to the connector and the air inlet spaced apart at a predetermined interval, and the sealing of the connector detachable portion uses a very flexible inner silicone pad, so that the connector and air inlet can rotate freely, so that the mask can be moved even if the connector moves.
  • the transmission can be significantly reduced.
  • the frictional force generated when the connector is rotated is proportional to the elastic force of the inner silicone pad, so even if the magnetic force is increased to strengthen the binding.
  • the frictional force does not increase significantly.
  • an adsorption filter 170 may be further provided in a part of the mask body 110, preferably in the body through portion 111 formed on the lower side.
  • the adsorption filter 170 may be a filter that serves to remove moisture or odor in the first fluid space S1.
  • the adsorption filter 170 can improve the user's emotional quality by providing a natural fragrance harmless to the human body to the user's respiratory system.
  • the adsorption filter 170 shields the body penetrating portion 111 so that the first fluid space S1 and the second fluid space S2 are not communicated with each other except for the communication port 115 described above. Can be.
  • FIG. 10 is an exploded perspective view showing the mask body 110 and the flap valve 150 in the configuration of FIG. 7, and FIG. 11 is a cut-away perspective view taken along line B-B of FIG. 7.
  • the air discharged by the user's exhalation is discharged after moving from the first fluid space S1 to the second fluid space S2 opened by the flap valve 150, as shown in FIGS. 7 and 8. It is discharged to the outside through the slit 125.
  • the flap valve 150 is closed when the user intakes, so that only the air purified by the air purification unit 1 is supplied to the user's respiratory system And, it is preferable that it acts only as a one-way valve that is opened when the user exhales and discharges the user's exhalation.
  • the flap valve 150 made of a one-way valve allows the user It is possible to provide the inconvenience of forcibly removing one embodiment 100 of the facial mask according to the present invention.
  • the flap valve 150 is provided with the first fluid space S1 and the second fluid according to the degree of decompression formed in the first fluid space S1. It may be provided to open the space (S2) emergency.
  • the flap valve 150 As shown in Figure 10, the flap body 153 is formed with a fixing protrusion 154 fixed to the outer surface of the mask body 110, and the flap body It is formed extending to one side of (153), one side free end 151 for the exhalation valve extended to cover the one side communication port 116, and is formed to extend to the other side of the flap body 153, the other side communication port (117) It may include the other free end 152 for the emergency valve extended to cover the.
  • one free end 151 and the other free end 152, the inner surface of the mask shell 120 and the mask body 110 in the second fluid space (S2) according to the pressure change of the first fluid space (S1) ) May be provided with a flexible flap that curves between the outer surfaces.
  • one side of the free end 151 and the other side of the free end 152 may be formed to have a thickness in which only a portion of the end portion (tip) is bent.
  • the other free end 152 for the emergency valve may be configured to have less flexibility than one free end, and thus may be opened upon expiration or may remain closed.
  • the purified air of the separately provided air purification unit 1 is introduced into the first fluid space S1 through the air inlet 113.
  • the pressure in the first fluid space S1 is emergencyly decompressed below a predetermined pressure due to sudden difficulty in breathing, lack of oxygen, or problems in the air purification unit.
  • the air introduced into the first fluid space S1 may be an emergency situation that must be introduced through the communication port 115 as well as the purified air supplied by the air purification unit 1, and the emergency valve is opened. Needs to be.
  • the predetermined pressure is not limited, and may be, for example, a pressure suddenly reduced by the user suddenly inspiring.
  • the tip of the other free end 152 for the emergency valve is bent toward the first fluid space S1 It is necessary to ensure that it can be opened emergency.
  • the exhalation valve side A support rib 116a may be formed to prevent the free end from bending and opening toward the first fluid space.
  • the support rib 117a may be formed to cross the other communication port 117 up and down.
  • the other free end for the emergency valve must be less flexible than the one free end for the exhalation valve in order to prevent the emergency opening during routine intake, and the other free end for the emergency valve is thicker than the one free end for the exhalation valve. Can be configured.
  • a reinforced rib may be formed in one region of the other free end for the emergency valve.
  • the reinforcing rib can prevent the other free end for the emergency valve from bending toward the first fluid space when the forming pressure of the first fluid space exceeds the predetermined pressure and is less depressurized.
  • a flexible flap valve when exhaled, the flap valve bends in the direction of the second fluid space to open and serves as an exhalation valve that is closed when intake, and the first fluid
  • a flexible flap valve is bent into the first fluid space through a communication port and curled to open the first fluid space and the second fluid space to enable intake. It can be configured to serve as an emergency valve.
  • one embodiment 100 of the facial mask according to the present invention has an effect of improving usability and convenience since it can be easily worn on a user's body together with an air purification unit that purifies and supplies external air, thereby enabling outdoor activities.
  • the emergency valve is opened according to the degree of decompression in the first fluid space provided by the user's intake when an emergency occurs, such as when a large amount of intake is required while the user wears it, or when a problem occurs in the inflow of air from the air purification unit. It has the effect of preventing the occurrence of safety accidents in case of emergency by enabling emergency intake, and the effect of improving the user's emotional quality by removing moisture and odor from the air (first fluid space) of the adjacent part of the user's respirator Have

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne un masque facial, comprenant : un corps de masque ayant au moins une entrée d'air ; une unité de purification d'air pour fournir de l'air purifié ; et un tube de raccordement pour permettre une communication entre l'unité de purification d'air et l'entrée d'air, et comprenant en outre une unité de tube de raccordement pouvant être attachée/détachée pour raccorder le tube de raccordement à l'entrée d'air pouvant être attachée/détachée magnétiquement.
PCT/KR2019/011732 2018-09-11 2019-09-10 Masque facial magnétique pouvant être fixé/détaché d'un tube de raccordement d'entrée d'air WO2020055106A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180108413 2018-09-11
KR10-2018-0108413 2018-09-11
KR10-2019-0052855 2019-05-07
KR1020190052855A KR102065707B1 (ko) 2018-09-11 2019-05-07 공기 유입 연결관의 자성 탈부착식 안면 마스크

Publications (1)

Publication Number Publication Date
WO2020055106A1 true WO2020055106A1 (fr) 2020-03-19

Family

ID=69152753

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/KR2019/011735 WO2020055109A1 (fr) 2018-09-11 2019-09-10 Masque facial
PCT/KR2019/011732 WO2020055106A1 (fr) 2018-09-11 2019-09-10 Masque facial magnétique pouvant être fixé/détaché d'un tube de raccordement d'entrée d'air

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/011735 WO2020055109A1 (fr) 2018-09-11 2019-09-10 Masque facial

Country Status (2)

Country Link
KR (6) KR20200029971A (fr)
WO (2) WO2020055109A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020243838A1 (fr) * 2019-06-07 2020-12-10 Whitby Peter Lionel Appareil pour connecter un masque facial à un tuyau d'air
EP3919133A1 (fr) * 2020-06-05 2021-12-08 LG Electronics Inc. Appareil de masquage
US11707097B2 (en) 2020-06-05 2023-07-25 Lg Electronics Inc. Mask apparatus
US11931604B2 (en) 2020-06-30 2024-03-19 Lg Electronics Inc. Mask apparatus
US11951337B2 (en) 2020-06-30 2024-04-09 Lg Electronics Inc. Mask apparatus
US12005147B2 (en) 2020-08-28 2024-06-11 Lg Electronics Inc. Sterilization case

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111165937A (zh) * 2020-01-27 2020-05-19 梅雪竹 一种适应不同面部凹槽的局部挤压的消毒式口罩
US20230129059A1 (en) * 2020-02-09 2023-04-27 Pureorr Ltd. Device, system and method for treating air during breathing
USD923775S1 (en) 2020-04-24 2021-06-29 Inland Concrete Products, Inc. Hygienic face mask
KR102428122B1 (ko) * 2020-05-22 2022-08-04 주식회사 파커스 휴대용 공기공급장치
KR20210153322A (ko) 2020-06-10 2021-12-17 권성환 숨쉬기 편한 마스크 지지대
KR102582208B1 (ko) * 2020-09-03 2023-09-25 건국대학교 산학협력단 바이오에어로졸과 미세먼지 차단을 위한 에어 클린 마스크
KR20220038891A (ko) 2020-09-21 2022-03-29 이일희 탈부착형 귀걸이끈을 갖는 안면 마스크
KR102425539B1 (ko) * 2020-10-06 2022-07-25 변진영 강제 송풍식 마스크 및 이를 이용한 호흡용 공기 순환 방법
KR102527747B1 (ko) * 2020-12-11 2023-04-28 권오석 마스크 호흡보조장치 및 이를 이용한 운동방법
KR102479808B1 (ko) * 2021-01-15 2022-12-23 건국대학교 산학협력단 코로나 감염 방지용 코마스크 및 이를 포함하는 마스크
WO2023191142A1 (fr) * 2022-03-31 2023-10-05 변진영 Masque alimenté en air forcé et procédé de circulation d'air respiratoire l'utilisant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000325481A (ja) * 1999-05-25 2000-11-28 Fujisawa Pharmaceut Co Ltd 呼吸用マスク
US20060174892A1 (en) * 2005-01-05 2006-08-10 Steven Leksutin Method and apparatus for magnetically connecting a head gear to an air mask
KR101619494B1 (ko) * 2016-02-17 2016-05-10 (주)대성엠텍 흡입부 분리형 기능성 마스크
KR20180044219A (ko) * 2016-10-21 2018-05-02 비클시스템주식회사 다기능 웨어러블형 공기정화장치
US20180195654A1 (en) * 2016-11-17 2018-07-12 Rainmaker Solutions, Inc. Magnetic quick connect kit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6397847B1 (en) * 1995-09-08 2002-06-04 Respironics, Inc. Customizable seal, mask with customizable seal and method of using such a seal
JP2006158572A (ja) * 2004-12-06 2006-06-22 Matsushita Electric Ind Co Ltd 移動体用酸素富化機
NZ772374A (en) * 2005-01-12 2022-07-29 ResMed Pty Ltd Cushion for patient interface
NZ615209A (en) * 2007-03-02 2015-07-31 Resmed Ltd Respiratory mask
JP2011030706A (ja) * 2009-07-31 2011-02-17 Taisei Plas Co Ltd マスクの製造方法とそのマスク
KR20120107664A (ko) * 2011-03-22 2012-10-04 장애인표준사업장비클시스템 주식회사 차량용 실외수신기
FR2983832B1 (fr) * 2011-12-07 2014-11-28 Airbus Operations Sas Appui-tete pour siege de pilote d'aeronef et siege comportant un tel appui-tete
KR200489143Y1 (ko) * 2014-01-17 2019-05-07 쓰리엠 이노베이티브 프로퍼티즈 캄파니 호흡 보호 마스크
JP6715430B2 (ja) * 2016-06-30 2020-07-01 株式会社石井鐵工所 避難用クッション
US20180038534A1 (en) * 2016-07-18 2018-02-08 Rainmaker Solutions, Inc. Mouthpiece assembly
WO2018177794A1 (fr) * 2017-03-28 2018-10-04 Koninklijke Philips N.V. Agencement de valve pour masque facial complet
KR101953127B1 (ko) * 2018-09-11 2019-03-05 비클시스템주식회사 비상 밸브를 구비한 안면 마스크

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000325481A (ja) * 1999-05-25 2000-11-28 Fujisawa Pharmaceut Co Ltd 呼吸用マスク
US20060174892A1 (en) * 2005-01-05 2006-08-10 Steven Leksutin Method and apparatus for magnetically connecting a head gear to an air mask
KR101619494B1 (ko) * 2016-02-17 2016-05-10 (주)대성엠텍 흡입부 분리형 기능성 마스크
KR20180044219A (ko) * 2016-10-21 2018-05-02 비클시스템주식회사 다기능 웨어러블형 공기정화장치
US20180195654A1 (en) * 2016-11-17 2018-07-12 Rainmaker Solutions, Inc. Magnetic quick connect kit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020243838A1 (fr) * 2019-06-07 2020-12-10 Whitby Peter Lionel Appareil pour connecter un masque facial à un tuyau d'air
EP3919133A1 (fr) * 2020-06-05 2021-12-08 LG Electronics Inc. Appareil de masquage
US11707097B2 (en) 2020-06-05 2023-07-25 Lg Electronics Inc. Mask apparatus
US11998769B2 (en) 2020-06-05 2024-06-04 Lg Electronics Inc. Mask apparatus
US11931604B2 (en) 2020-06-30 2024-03-19 Lg Electronics Inc. Mask apparatus
US11951337B2 (en) 2020-06-30 2024-04-09 Lg Electronics Inc. Mask apparatus
US12005147B2 (en) 2020-08-28 2024-06-11 Lg Electronics Inc. Sterilization case

Also Published As

Publication number Publication date
KR102344686B1 (ko) 2021-12-30
KR20200029979A (ko) 2020-03-19
KR102065707B1 (ko) 2020-01-14
KR102065708B1 (ko) 2020-02-11
WO2020055109A1 (fr) 2020-03-19
KR20200029971A (ko) 2020-03-19
KR20200029978A (ko) 2020-03-19
KR20200029980A (ko) 2020-03-19

Similar Documents

Publication Publication Date Title
WO2020055106A1 (fr) Masque facial magnétique pouvant être fixé/détaché d'un tube de raccordement d'entrée d'air
WO2020054932A1 (fr) Masque facial comprenant une valve d'urgence
WO2018164349A1 (fr) Masque de purification d'air pouvant filtrer l'air inhalé et l'air expiré
KR101905431B1 (ko) 공기정화 마스크 시스템
KR100537586B1 (ko) 안면 마스크용 캐리지 및 이를 사용한 마스크 장치
WO2019009589A1 (fr) Lunettes comprenant un masque
WO2016167532A1 (fr) Masque à gaz de type cagoule
WO2017146382A1 (fr) Masque de type écran frontal
WO2017043907A1 (fr) Masque à lunettes de protection
WO2019059699A1 (fr) Masque de purification d'air électrique
WO2018199694A1 (fr) Masque
WO2018097507A1 (fr) Cadre respiratoire de masque pourvu d'un élément de support
WO2013094806A1 (fr) Respirateur étanche à la poussière/étanche aux gaz comportant un embout
WO2021221328A1 (fr) Système d'épuration d'air à porter sur soi
WO2020055108A1 (fr) Masque facial
WO2020055104A1 (fr) Masque facial pour l'intérieur du véhicule
WO2014098511A1 (fr) Masque de protection contre le froid
WO2020055105A1 (fr) Masque facial
WO2016167531A1 (fr) Masque à gaz de type cagoule
WO2022234932A1 (fr) Masque ayant une fonction d'admission et d'évacuation forcée
WO2018217002A1 (fr) Casque équipé d'un appareil respiratoire à air, intégré à une membrane, lavable à contre-courant
WO2022107954A2 (fr) Appareil d'alimentation en oxygène permettant une mise en place rapide et une alimentation en oxygène continue
WO2023017893A1 (fr) Dispositif de soufflage pour masque
WO2021107516A1 (fr) Masque de protection anti-poussière et anti-gaz hybride
KR101914642B1 (ko) 안면 마스크

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19858862

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19858862

Country of ref document: EP

Kind code of ref document: A1