WO2022045689A1 - Masque à ajustement latéral serré comprenant de multiples élastiques pour oreilles - Google Patents

Masque à ajustement latéral serré comprenant de multiples élastiques pour oreilles Download PDF

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Publication number
WO2022045689A1
WO2022045689A1 PCT/KR2021/011169 KR2021011169W WO2022045689A1 WO 2022045689 A1 WO2022045689 A1 WO 2022045689A1 KR 2021011169 W KR2021011169 W KR 2021011169W WO 2022045689 A1 WO2022045689 A1 WO 2022045689A1
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WO
WIPO (PCT)
Prior art keywords
mask
user
ear band
ear
earband
Prior art date
Application number
PCT/KR2021/011169
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English (en)
Korean (ko)
Inventor
이민정
Original Assignee
이민정
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Publication date
Application filed by 이민정 filed Critical 이민정
Publication of WO2022045689A1 publication Critical patent/WO2022045689A1/fr

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    • 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
    • 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
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2300/00—Details of garments
    • A41D2300/30—Closures
    • A41D2300/32—Closures using hook and loop-type fasteners
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2400/00—Functions or special features of garments
    • A41D2400/38—Shaping the contour of the body or adjusting the figure

Definitions

  • the present invention relates to a side-adhesive mask having a plurality of ear bands, and to be more specific, in the mask formed to correspond to the vicinity of the user's mouth, nose, and chin, the mask corresponds to the user's face a first ear band provided on both sides of the main body and the mask, both ends of which are spaced apart from each other by a predetermined distance, and a first ear band coupled to the outer surface of the main body, and a second ear band coupled to the outer surface of the main body so as to intersect the first ear band; It is a technical field related to a side-contact type mask provided with a plurality of ear bands, characterized in that it comprises a.
  • a mask primarily serves to prevent the cold air from coming into direct contact with the user's respiratory system in winter, and is used in textile altars, wood altars, paper altars, ready-mixed concrete factories, cement factories, briquette factories, coal mines, and large-scale building construction sites.
  • fine pollutants such as dust or toxic gas are directly introduced into the user's respiratory tract and the human body such as lungs or bronchial tubes It is used to prevent the initiation of respiratory diseases, or to prevent transmission of highly contagious viruses such as colds and flu through the respiratory tract.
  • the mask does not directly inhale dust and fine contaminants generated during construction site work or cold air or contagious viruses transmitted to the respiratory tract, but inhale air filtered with contaminants through a filter. Due to the occurrence of dust or yellow dust, it is increasingly necessary to wear it even for outdoor activities.
  • the conventional mask is composed of a body part that covers the user's nose and mouth, a hook part that can be worn over the ear, and a nose part that can prevent pollutants from outside air from entering the nose part.
  • the body part of the mask for blocking pollutants such as fine dust or yellow sand may include a filter that can block fine pollutants such as fine dust or yellow sand, and it is common to apply an elastic thread to the hook part, and it is convenient for the user. It may include a length adjustment unit to provide There was a problem in that it was difficult to prevent the direct influx of contaminants into the respiratory tract due to poor adhesion.
  • Korean Patent Application Laid-Open No. 10-2019-0122516 discloses that the present invention inserts a "-"-shaped flat band made of plastic or metal having elasticity in the upper part of the mask. Or, after attaching it, it is transformed into a “ ” shaped flexion band similar to facial flexion with a thermocompression bending device. Regardless, it relates to a functional face-adhesive mask that has the effect of completely adhering to the user's face and preventing harmful external dust from entering the user's respiratory tract directly.
  • Republic of Korea Patent Registration No. 10-2012157 relates to a close-fitting mask equipped with an elastic band. This is to show the effect that external air can be prevented from entering the inside through the gap of the wearing part.
  • the present invention for realizing this, in the mask comprising earrings on both sides of the mask body having the air permeable filtering part, constitutes a secondary adhesion part having elasticity and flexibility along the edge of the mask body, and the mask body
  • a nose pad is provided on the inner upper portion of the nose pad to wrap and closely adhere to the user's nose
  • a lower side membrane is provided to wrap around the nose and mouth by forming a closed curve downward from both sides of the nose pad
  • the lower side membrane edge part has skin Constructing a primary contact part made of elastic and stretchable material for close contact with the skin, and providing a separate elastic band having elasticity at the upper position as one side of the secondary contact part to increase the adhesion of the nose pad to the bridge of the nose and upward flow of internal air
  • a close-fitting mask provided with an elastic band characterized in that it prevents
  • the present invention is a technology devised to solve the problems according to the prior art, and a conventional mask that is in close contact with the face adjusts the shape of the nose to make it close, or by configuring a contact part having elasticity and flexibility on the edge of the mask, the user Even if it is in close contact with the face part of the mask, the mask slides when talking or talking on the phone while wearing the mask for a long time, and the feeling of close contact with the user's skin may be reduced.
  • the mask is provided on both sides of the body and the mask corresponding to the user's face, both ends A plurality of ears, characterized in that it comprises a first ear band coupled to the outer surface of the main body and a second ear band coupled to the outer surface of the main body so as to intersect the first ear band in a state spaced apart from each other by a predetermined distance. It is a main object to provide a side-adhesive mask provided with a band.
  • the present invention is a mask formed to correspond to the vicinity of the user's mouth, nose and chin in order to realize the desired object as described above, wherein the mask is provided on both sides of the body and the mask corresponding to the user's face, both ends A plurality of ears, characterized in that it comprises a first ear band coupled to the outer surface of the main body and a second ear band coupled to the outer surface of the main body so as to intersect the first ear band in a state spaced apart from each other by a predetermined distance.
  • a side-adhesive mask with a band is presented.
  • the mask is provided on both sides of the body and the mask corresponding to the user's face, one side is coupled to the upper surface of the body and a first earband, the other side of which is coupled to the lower surface of the main body, and a second earband provided between both sides of the first earband.
  • the mask of the present invention includes a first gap between one side of the first ear band and one side of the second ear band and a second gap between the other side of the first ear band and one side of the second ear band; A third interval between the other side of the first earband and the other side of the second earband is the same.
  • the mask of the present invention has a fourth interval between one side of the first earband and one side of the second earband and a fifth interval between one side of the second earband and the other side of the second earband; A sixth interval between the other side of the second earband and the other side of the first earband is the same.
  • the length of the first ear band of the present invention is characterized in that it is longer than the length of the second ear band.
  • the mask of the present invention is characterized in that it is configured to include a variable member that is in close contact with the upper part of the nose and a wrinkle part that can guide the user when unfolding or folding the main body.
  • the mask of the present invention is provided on the left and right ends of the inner surface of the main body, characterized in that it is configured to include a plurality of close contact guides provided to be spaced apart from the upper portion of the main body in a downward direction by a predetermined distance.
  • the side close-fitting mask provided with a plurality of ear bands is a mask formed to correspond to the vicinity of the user's mouth, nose, and chin, wherein the mask includes a body corresponding to the user's face and the mask a first ear band coupled to the outer surface of the main body with both ends spaced apart from each other by a predetermined distance and a second ear band coupled to the outer surface of the main body to intersect the first ear band;
  • FIG. 1 is a side view showing a state in which the side of the mask is lifted from the user's face when wearing a general mask.
  • Figure 2 is a side view showing the wearing state of the mask according to the preferred embodiment of the present invention.
  • Figure 3 is a perspective view showing a first mask according to a preferred embodiment of the present invention.
  • Figure 4 is a plan view showing a first mask according to a preferred embodiment of the present invention.
  • FIG. 5 is a perspective view showing a second mask according to a preferred embodiment of the present invention.
  • FIG. 6 is a plan view showing a second mask according to a preferred embodiment of the present invention.
  • FIG. 7 is a perspective view showing a third mask according to a preferred embodiment of the present invention.
  • FIG. 8 is a plan view showing a third mask according to a preferred embodiment of the present invention.
  • FIG. 9 is an exploded view (a) and a plan view (b) showing the combined state showing the coupling of the main body and the contact member according to another embodiment of the present invention.
  • lifting part 10 body
  • the present invention relates to a side-adhesive mask having a plurality of ear bands, and to be more specific, in the mask formed to correspond to the vicinity of the user's mouth, nose, and chin, the mask corresponds to the user's face
  • a first ear band provided on both sides of the main body and the mask, the first ear band coupled to the outer surface of the main body with both ends spaced apart by a predetermined distance, and a second ear band coupled to the outer surface of the main body to cross the first ear band
  • the position where the blocking member 40 is provided should be understood as the upper part and the position corresponding to the user's chin as the lower part.
  • the mask 100 which is a major component for achieving the present invention, is
  • It is formed to correspond to the vicinity of the user's mouth, nose (nose bridge), and chin, and is formed in a structure in which a synthetic resin fabric or non-woven fabric and a filter that can absorb dust or harmful substances are combined to form the user's face It closes the mouth, nose and chin to prevent dust or harmful substances in the outside air from being directly inhaled into the respiratory tract through the user's mouth and nose.
  • the mask 100 of the present invention is formed to correspond to the vicinity of the user's mouth, nose, and chin, as shown in FIG. 2, and has a plurality of ear bands to provide the body 10 to the user's face. ), and as it closely adheres to the user's face, it covers the mouth, nose and chin so that harmful substances such as yellow dust, fine dust, pollen, and viruses contained in the outside air are directly passed through the user's mouth and nose. to prevent inhalation.
  • the main body 10 is composed of an outer surface, an inner surface, a filter, etc. made of one or more layers of nonwoven fabric or cloth, etc., and covers the user's mouth, nose, and chin, and the outer and inner surfaces are polyethylene terephthalate, It may be made of a material such as a thermoplastic resin such as polyolefin, polyethylene, or polypropylene, and the filter is composed of an ultra-static filter with an electrostatic function, a melt blown filter, a nano-fiber applied nano filter, etc. It can effectively block harmful substances such as yellow dust, viruses, and pollen.
  • the mask 100 is configured to include a variable member 40 that has a variable shape and is in close contact with the upper part of the nose.
  • variable member 40 is made of a material such as a soft metal material, aluminum, iron core, wire, etc. made of a flexible and light synthetic resin that is easy to bend freely, has great durability, and allows users with various facial shapes. As the shape is easily changed to correspond to the curved shape of the bridge of the nose and cheeks, it is easily adhered to the user's bridge of the nose and the cheeks on both sides of the nose, thereby preventing harmful substances in the external air from entering the respiratory tract.
  • a material such as a soft metal material, aluminum, iron core, wire, etc. made of a flexible and light synthetic resin that is easy to bend freely, has great durability, and allows users with various facial shapes. As the shape is easily changed to correspond to the curved shape of the bridge of the nose and cheeks, it is easily adhered to the user's bridge of the nose and the cheeks on both sides of the nose, thereby preventing harmful substances in the external air from entering the respiratory tract.
  • the first earband 20-1 which is a main component for achieving the present invention, is the first mask so that it can be hung on the user's ear. It is provided on both sides of (100-1) in a symmetrical form, and is coupled to the outer surface of the main body 10 (the surface that does not come into contact with the user's face) with both ends spaced apart by a predetermined interval, and is light, strong, and It is made of a flexible and highly elastic synthetic resin material, and after being caught in the user's ear, the first mask 100-1 is attached to the user's face by elasticity, or the first mask 100-1 is applied to the user's face. When separated from the face part of the user, the elasticity allows the user to easily release it from the user's ear, so that the user can easily put on and take off the first mask 100-1.
  • first ear band 20-1 is attached or fusion-bonded to be adjacent to the side upper end of the first mask 100-1, and the first mask 100-1 , and the other side of the first ear band 20-1 is attached or fused to be adjacent to the center of the side of the first mask 100-1 and hooked on the user's ear, so that the first mask (100-1) to be in close contact with the user's face.
  • the second ear band 30-1 which is a main component for achieving the present invention, is the first mask so that it can be hung on the user's ear. It is provided on both sides of (100-1) in a symmetrical form, and is coupled to the outer surface of the main body 10 so as to intersect the first ear band 20-1, and is light, strong, flexible, and has high elasticity.
  • both ends of the first mask 100-1 are elastically connected to the user's face As it is more closely attached, both ends of the first mask 100-1 can be firmly maintained without lifting even when worn by a user with a small face or a small cheekbone.
  • one side of the second earband 30-1 is attached to or fused to a lower portion than one side of the first earband 20-1, and the first side of the first mask 100-1 is Extending outwardly, the other side of the second ear band 30-1 is attached or fused to be adjacent to the lower end of the side surface of the first mask 100-1, thereby forming the first ear band 20-1.
  • the crossed portion of the first ear band 20-1 and the second ear band 30-1 hangs on the user's ear, so that both ends of the first mask 100-1 and the user The adhesion of the face part is increased.
  • a first mask 100-1 includes one side of the first earband 20-1 and the second earband 30-1.
  • the third interval L3 between the other side of 20-1 and the other side of the second earband 30-1 is configured to be the same, so that the user can use the first earband 20-1 and the second earband 20-1.
  • the band 30-1 When the band 30-1 is pulled and worn at the same time, since the elastic force applied to the first ear band 20-1 and the second ear band 30-1 is the same, the side surface of the first mask 100-1 The same pressure is applied to the , so that the first mask 100 - 1 can be accurately adhered to the curved shape of the user's face without lifting.
  • the lengths of the first ear band 20-1 and the second ear band 30-1 are the same, and the first interval L1, the second interval L2, and the third interval L3) is preferably the same.
  • the first interval L1 and the second interval L2 are the same, and the third interval L3 is smaller than the first interval L1 and the second interval L2.
  • the second ear band 30-1 uses the first ear band 30-1 with greater force than the first ear band 20-1 when the first mask 100-1 is worn. Since it is pulled and hung on the ear, the elasticity applied to the back of the ear is stronger than that of the first ear band 20-1, which causes pain behind the user's ear. It is preferable that the first interval L1 , the second interval L2 , and the third interval L3 are the same because this may decrease.
  • the first earband 20-2 which is a main component for achieving the present invention, is a second mask 100-2. It is provided in a symmetrical form on both sides of the body 10, one side is attached or fused adjacent to the upper portion of the outer surface of the main body 10, and the other side is attached or fusion-bonded adjacent to the lower portion of the outer surface of the main body 10.
  • the first ear band 20-2 is made of a lightweight, strong, flexible, and highly elastic synthetic resin material
  • the second mask 100-2 is elastically attached to the user's ear.
  • the user attaches the mask 100-2 to the user's face or separates the second mask 100-2 from the user's face, the user can easily release it from the user's ear by elasticity, so that the user can use the second mask 100-2. Make it easy to put on and take off.
  • the second ear band 30-2 which is a main component for achieving the present invention, can be hung on the user's ear so that the second mask ( 100-2) provided in a symmetrical form on both sides of the first ear band 20-2, and provided between both ends of the first ear band 20-2, the adhesion between the user's face and both ends of the second mask 100-2 this will rise
  • one side of the second ear band 30 - 2 is attached or fused to a lower portion than one side of the first ear band 20 - 2 , and the second ear band 30 - 2 is formed of Extending outwardly, the other side of the second earband 30-2 is attached to or fused to an upper portion than the other side of the first earband 20-2, and is caught by the user's ear, so that the second mask ( 100-2) to be in close contact with the user's face.
  • the second ear band 30-2 is made of a synthetic resin material with properties of light, strong, flexible, and high elasticity, and both ends of the second mask 100-2 by elasticity after being caught in the user's ear. By further closely contacting the user's face, both ends of the second mask 100 - 2 can be firmly maintained in close contact even when worn by a user with a small face or low cheekbones.
  • the length L11 of the second earband 30-2 is longer than the length L10 of the first earband 20-2, so that the user can use the second mask 100- When wearing 2), even if a small force is applied to the first earband 20-2 provided with a wide interval, it can be in close contact with the user's face.
  • the length L11 of the second earband 30-2 is preferably longer than the length L10 of the first earband 20-2, and the second earband 30
  • the length L11 of -2) is equal to or shorter than the length L10 of the first earband 20-2, when the user wears the second mask 100-2, the second earband (30-2) should be worn by applying a greater force, and as time passes after wearing, pain may occur behind the ear. It is preferable that the length L11 of the second earband 30-2 is longer than the length L10 of the first earband 20-2 because it may be lowered.
  • the second mask 100-2 of the present invention includes one side of the first earband 20-2 and the second earband ( 30-2) and a fourth interval L4 between one side of the second ear band 30-2 and a fifth interval L5 between one side of the second ear band 30-2 and the other side of the second ear band 30-2;
  • the sixth distance L6 between the other side of the second earband 30-2 and the other side of the first earband 20-2 is the same, and the first earband 20-2 and the second earband When 30-2 is pulled, more curves are generated on both sides of the second mask 100-2, so that a feeling of closeness increases when a user with a small face or small cheeks wears it.
  • the second mask 100-2 preferably has the same fourth interval L4, the fifth interval L5, and the sixth interval L6, for example, the fourth interval L4. ) and the sixth interval L6 are the same, and when the fifth interval L5 is smaller or larger than the fourth interval L4 and the sixth interval L6, the second ear band 30-2 is connected to the first Since the gap is wider than that of the ear band 20-2, when the user wears the second mask 100-2, the second ear band 30-2 is larger than the first ear band 20-2. At this time, the elasticity applied to the back of the ear is strong due to the second ear band 30-2 provided with a longer length, which causes pain behind the user's ear, or both sides of the user's ear canal. It is preferable that the fourth interval (L4), the fifth interval (L5), and the sixth interval (L6) are the same because it can float without being in close contact with the face part.
  • the first earband 20-3 which is a main component for achieving the present invention, is a third mask 100-3.
  • the first ear band 20-3 is made of a lightweight, strong, flexible, and highly elastic synthetic resin material, and the third mask 100-3 is elastic after being caught in the user's ear.
  • the third mask 100-3 allows the user to easily release it from the user's ear by elasticity when the third mask 100-3 is separated from the user's face. Make it easy to put on and take off.
  • the second ear band 30-3, which is a main component for achieving the present invention is the third mask ( 100-3) is provided in a symmetrical form on both sides of the first ear band 20-3, and is provided below the first ear band 20-3, so that the adhesion between the user's face part and both ends of the third mask 100-3 is improved.
  • one side of the second earband 30-3 is attached to or fused to a lower portion than the other side of the first earband 20-3, and the third mask 100-3 Extending outwardly, the other side of the second ear band 30-3 is attached to or fused to a lower portion than one side of the second ear band 20-3, and the third mask 100- 3) to be in close contact with the user's face.
  • the length L13 of the second earband 30-3 is longer than the length L12 of the first earband 20-3, so that the user can use the third mask 100- When wearing 3), even if a small force is applied to the second ear band 30-3, which is far from the ear, it can be in close contact with the user's face.
  • the length L13 of the second earband 30-3 is preferably longer than the length L12 of the first earband 20-3, and the second earband 30
  • the length L13 of -3) is shorter than the length L12 of the first earband 20-3, when the user wears the third mask 100-3, the second earband 30 -3) should be worn with greater force, and as time passes after wearing, pain in the back of the ear may occur. Therefore, it is preferable that the length L13 of the second earband 30-3 is longer than the length L12 of the first earband 20-3.
  • the third mask 100-3 of the present invention has a seventh interval between one side and the other side of the first earband 20-3. (L7) and the eighth gap L8 between the other side of the first ear band 20-3 and one side of the second ear band 30-3 and one side of the second ear band 30-3.
  • the ninth distance L9 between the other side is the same, and when the first ear band 20-3 and the second ear band 30-3 are pulled, there is no curvature on both sides of the third mask 100-3. Because it is more, the feeling of closeness increases when a user with a small face or a small cheekbone wears it.
  • the seventh interval L7, the eighth interval L8, and the ninth interval L9 are the same, for example, the seventh interval L7 ) and the eighth gap (L8) are the same and the ninth gap (L9) is smaller than the seventh gap (L7) and the eighth gap (L8), the second ear band 30-3 is the first ear band Since the interval is wider than that of (20-3), when the user wears the third mask 100-3, the second earband 30-3 is more than the first earband 20-3. It has to be pulled by a large force and hung on the ear.
  • the elasticity applied to the back of the ear is strong due to the second ear band 30-3 provided with a long and short length, so that pain is generated behind the user's ear, or both sides are in contact with the user's face. It is preferable that the seventh interval (L7), the eighth interval (L8), and the ninth interval (L9) are the same because it can float without being in close contact.
  • the arm velcro 11 is provided on the left and right edges of the inner surface of the main body 10 , and a plurality of attachable and detachable contact members are provided. (50) is included.
  • the adhesion member 50 is made of an adhesive material such as silicone and polyolefin gel and can be reused, and has low irritation and high adhesion, so that the user's face and both sides of the mask 100 are firmly maintained in adhesion. can be
  • the adhesion member 50 is configured to be detachable, and a male velcro 51 is provided on the outer surface so that it can be easily attached and detached to the female velcro 11 of the main body 10, and the shape of the user's face, that is, the ball ( Cheek) by changing the position of the contact member 50 according to the curvature, it is possible to increase the adhesion with the face of the user having various facial shapes.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

La présente invention concerne un masque à ajustement latéral serré comprenant une pluralité d'élastiques pour oreilles et, plus particulièrement, un masque formé de manière à s'ajuster aux contours de la bouche, du nez et de la mâchoire d'un utilisateur. Le masque comprend : un corps principal s'ajustant au visage d'un utilisateur ; et des premiers élastiques pour oreilles et des seconds élastiques pour oreilles qui sont disposés sur les deux côtés du masque, les premiers élastiques pour oreilles étant fixés à la surface externe du corps principal, les deux extrémités étant espacées l'une de l'autre à une distance prédéfinie, et les seconds élastiques pour oreilles étant fixés à la surface externe du corps principal de façon à croiser les premiers élastiques pour oreilles. À ce titre, les deux côtés du masque s'ajustent de manière stable au visage de l'utilisateur, ce qui permet de prévenir l'inhalation directe de virus externes, de poussière jaune, de poussière fine, de pollen et de substances nocives, etc., dans le nez et la bouche de l'utilisateur à partir des côtés du masque.
PCT/KR2021/011169 2020-08-26 2021-08-23 Masque à ajustement latéral serré comprenant de multiples élastiques pour oreilles WO2022045689A1 (fr)

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KR1020200107831A KR102211504B1 (ko) 2020-08-26 2020-08-26 복수의 이어밴드가 구비된 측면 밀착형 마스크
KR10-2020-0107831 2020-08-26

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102211504B1 (ko) * 2020-08-26 2021-02-02 이민정 복수의 이어밴드가 구비된 측면 밀착형 마스크
KR102554157B1 (ko) 2022-06-27 2023-07-10 김일현 흘러내림방지 마스크

Citations (6)

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Publication number Priority date Publication date Assignee Title
KR20040052835A (ko) * 2004-05-08 2004-06-23 원덕수 기능성 마스크
JP2004267694A (ja) * 2003-03-04 2004-09-30 Yukiro Kobayashi 二重紐マスク
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