WO2023026603A1 - Exhalation-fan-equipped mask spacer - Google Patents

Exhalation-fan-equipped mask spacer Download PDF

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Publication number
WO2023026603A1
WO2023026603A1 PCT/JP2022/020297 JP2022020297W WO2023026603A1 WO 2023026603 A1 WO2023026603 A1 WO 2023026603A1 JP 2022020297 W JP2022020297 W JP 2022020297W WO 2023026603 A1 WO2023026603 A1 WO 2023026603A1
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Prior art keywords
mask
spacer
fan
exhalation
wearer
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PCT/JP2022/020297
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French (fr)
Japanese (ja)
Inventor
邦泰 河島
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邦泰 河島
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Publication of WO2023026603A1 publication Critical patent/WO2023026603A1/en

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    • 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
    • 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

Definitions

  • the present invention relates to a mask spacer with an exhalation fan that is placed inside a mask used to prevent pollen and virus infection.
  • Mask spacers are used as aids for relieving the suffocation by creating a space between the mouth and the mask when the mask is worn, in order to prevent the suffocation caused by the mask.
  • Patent Document 1 In order to directly ventilate the air remaining in the gap between the mask surface and the mouth, a small mask fan is placed directly between the mask and the mouth to ventilate the inside of the mask.
  • Patent Document 2 a rigid sports mask with a convection fan for ventilation has also been disclosed (see Patent Document 2, for example).
  • the conventional mask spacer can certainly form a space between the mask and the mouth, the wearer's exhaled breath still stays in the mask, and the remaining air is sucked in during the next inhalation. Become.
  • the difficulty of breathing when wearing mask spacers can be alleviated to some extent, it cannot be eliminated.
  • the present invention has been made in view of the above problems, and the air that stays in the mask when worn is more efficiently ventilated while reducing the risk of virus infection, so that the wearer feels stuffy and hot. It is an object of the present invention to provide a mask spacer with an exhalation fan capable of resolving sagging.
  • the present invention provides a mask spacer with an exhalation fan, which is arranged between the mask and the vicinity of the mouth of the mask wearer, and has a substantially U-shape.
  • a spacer portion that can be locked to the alar portion, and an exhalation fan that is integrally connected below the spacer portion and has a built-in fan for sucking in air from the outside, wherein the spacer portion extends from the left and right ends of the upper edge.
  • the substantially U-shape is formed by having a pair of legs extending upward, and when the mask spacer with an exhalation fan is worn, the spacer and the exhalation fan form a predetermined angle.
  • An air ventilation space is formed near the mouth of the wearer of the mask, and the predetermined angle formed by the spacer and the exhalation fan is adjustable.
  • the spacer section is formed with a plurality of vent holes for ventilation.
  • the exhalation fan has at least a suction surface on its front side for sucking air from the outside and a blowout surface for blowing air on its back side, and the spacer section and the expiration fan forms the predetermined angle, the air blown from the blowing surface is preferably blown obliquely upward toward the vicinity of the wearer's mouth.
  • the predetermined angle is an obtuse angle and that the lower part of the exhalation fan contacts the chin of the wearer.
  • the present invention is an in-mask ventilator characterized by comprising the above mask spacer with an exhalation fan.
  • the present invention is a mask spacer with an exhalation fan to be placed between the mask wearer's mouth and the mask, the spacer having a substantially U-shape and being lockable to the mask wearer's nostrils. and an exhalation fan that is integrally connected to the lower part of the spacer part and has a built-in fan for sucking air from the outside.
  • the spacer portion has a pair of legs extending upward from the left and right ends of the upper edge to form a substantially U shape.
  • FIG. 1 is a front view of a state in which a mask spacer with an exhalation fan according to an embodiment of the present invention is attached;
  • FIG. Fig. 10 is a side view of the same mask spacer with an exhalation fan when worn;
  • FIG. 11(a) to (c) are diagrams for explaining the flow of exhaled air when the same mask spacer with an exhalation fan is attached.
  • FIG. 11 is a front view when the mask spacer with an exhalation fan according to a modification of the embodiment is attached.
  • FIG. 1 A mask spacer with an exhalation fan according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.
  • FIG. The mask spacer is an auxiliary tool that creates a space between the mask and the mouth of the wearer when wearing the mask, thereby relieving the suffocation felt while wearing the mask. .
  • the mask spacer 1 has a substantially U-shaped spacer portion 2 that can be engaged with the alar portion of the wearer's nose of the mask 4.
  • an exhalation fan 3 with a built-in fan for sucking air from.
  • the mask spacer 1 is arranged between the wearer's mouth (near the mouth) and the mask 4 .
  • the mask 4 is, for example, secured by elastic cords (ear cords) provided at the left and right ends, and is made of a very lightweight disposable type made by laminating polypropylene nonwoven fabric, filters, etc. in multiple layers, gauze, cloth, or the like. There is also a type that is composed of a sheet material and can be washed after use to remove adhering matter and can be used repeatedly.
  • elastic cords ear cords
  • ear cords a very lightweight disposable type made by laminating polypropylene nonwoven fabric, filters, etc. in multiple layers, gauze, cloth, or the like.
  • the spacer portion 2 has a pair of legs 2a and 2b extending upward from the left and right ends of the upper edge to form a substantially U-shape, which fits the wearer's nose (especially The legs 2a and 2b are engaged with the nose wing portion).
  • This configuration of the legs 2a and 2b prevents the formation of a gap between the spacer 2 and the nose, and the legs 2a and 2b arranged on the sides of the nose prevent virus droplets from entering and leaking from the sides of the nose. reduce Also, by arranging the legs 2a and 2b beside the nose, breathing through the nose is not hindered.
  • the spacer part 2 is formed by covering a lightweight and high-strength material such as reinforced plastic resin such as urethane with a relatively soft cushioning material and having a predetermined thickness (eg, about 2 to 3 mm). Further, the spacer portion 2 is formed with a plurality of vent holes 2c for ventilation by punch holes or the like.
  • a lightweight and high-strength material such as reinforced plastic resin such as urethane with a relatively soft cushioning material and having a predetermined thickness (eg, about 2 to 3 mm).
  • the spacer portion 2 is formed with a plurality of vent holes 2c for ventilation by punch holes or the like.
  • the expiratory fan 3 is integrally connected with the spacer section 2 on the lower side of the spacer section 2 . As shown in FIG. 2, the exhalation fan 3 forms a predetermined angle between the spacer portion 2 and the exhalation fan 3, and the lower portion (lower end portion) 3a of the exhalation fan 3 contacts the chin of the wearer. A ventilation space S is formed between the mouth of the mask and the mask 4.
  • the expiratory fan 3 is a box-shaped body having a square shape when viewed from the front, and a relatively small rotating fan is built therein. The power supply for this rotating fan is connected to a commercially available mobile battery or AC adapter with a USB cable 3d or the like.
  • the wiring can be led out from between the rubber cords on the lateral side of the mask 4 so as not to create a gap as shown in FIGS.
  • the shape of the expiratory fan 3 is not limited to a box shape, and may be a rectangle or a circle other than a square when viewed from the front.
  • the spacer part 2 and the expiratory fan 3 are integrally connected, for example, by a rotary joint, so that the angles thereof can be adjusted in a side view. It is possible to form an air ventilation space S in front of the mouth while preventing close contact with the face of the mouth. By adjusting the angle, it is possible to adjust the capacity of the ventilation space S according to the wearer.
  • This predetermined angle (approximately 100 degrees in this drawing) is preferably a so-called obtuse angle of 90 degrees or more and 120 degrees or less. This is because the height of the mask spacer 1 itself is suppressed, the volume of the ventilation space S of the mask spacer 1 is reduced, and the necessary ventilation volume is reduced.
  • the expiratory fan 3 has a suction surface 3b on its front side for sucking air from the outside, and a blowout surface 3c on its back side for blowing out air.
  • the air blown from the blowing surface 3c is blown obliquely upward toward the vicinity of the wearer's mouth. That is, air from the outside is efficiently blown directly toward the wearer's mouth. This is to secure the close contact between the face surface of the wearer and the mask spacer 1, form the ventilation space S, and direct the face obliquely upward in order to improve the efficiency of air intake.
  • the mask spacer 1 fits the shape of the nose, and the lower end 3a of the exhalation fan 3 contacts the chin of the wearer.
  • the gap formed between the face surface (nose surface) and the upper edge of the mask spacer 1 is sealed to effectively prevent air from entering from the side.
  • air can be reliably inhaled through the mask spacer 1, and viruses such as droplets are properly prevented from entering through the gap on the chin side and the gap near the nose when inhaling air.
  • this structure allows the exhaled breath of the wearer of the mask spacer 1 to flow downward efficiently, and prevents the exhaled breath of the wearer from leaking upward through the gap formed between the mask spacer 1 and the face surface. , fogging of glasses can be prevented.
  • the spacer part 2 and the exhalation fan 3 form a predetermined angle, and the air can be supplied upward from the exhalation fan 3 into the mask, so the pressure of the air blown from the fan is efficiently transmitted to the inside of the mask spacer 1 .
  • the pressure loss can be reduced, the motor output of the internal fan of the expiratory fan 3 can be reduced, and the size of the expiratory fan 3 can be reduced.
  • the angle formed by the spacer part 2 and the expiratory fan 3 an obtuse angle
  • the height of the mask spacer 1 can be suppressed, the capacity of the ventilation space S can be reduced, and the required ventilation volume can be reduced.
  • noise reduction can be achieved, and power consumption can be reduced.
  • the amount of ventilation by the fan built into the exhalation fan 3 can be minimized, the scattering of virus droplets from the gap between the mask 4 and the face surface can be suppressed.
  • the mask spacer 1 arranged between the mask 4 and the vicinity of the mouth of the wearer of the mask 4 has a substantially U shape, and the mask spacer 1 is arranged between the mask 4 and the wearer's mouth. and an exhalation fan 3 which is integrally connected to the lower part of the spacer part 2 and incorporates a fan for sucking air from the outside.
  • the spacer portion 2 has a pair of legs 2a and 2b extending upward from the left and right ends of the upper edge to form a substantially U shape.
  • an air ventilation space S is formed near the mouth of the wearer of the mask 4 by forming a predetermined angle between the spacer part 2 and the exhalation fan 3 .
  • the mask spacer 1 can ventilate the air remaining in the mask 4 more efficiently while reducing the risk of viral infection, and can eliminate the stuffiness and heat that the wearer feels. do.
  • the mask spacer 1 by attaching the mask spacer 1 inside a commercially available non-woven mask, it is possible to prevent dyspnea, mask headache, and stuffiness inside the mask without increasing the risk of infection.
  • a commercially available non-woven fabric mask or cloth mask can be used, and noise is reduced.
  • the present invention is not limited to the configuration of the above-described embodiment, and various modifications are possible without changing the gist of the invention.
  • the mask spacer 1 may be used as an in-mask ventilator.
  • a plurality of expiratory fans 3 may be installed in parallel when the air volume is insufficient.
  • the mask spacer 1 alone with a rubber string or the like during desk work that requires study and concentration, it has the effect of preventing air from accumulating around the mouth and improving breathing, and as a result, improvement in learning efficiency and work efficiency is expected. can.

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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)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

This exhalation-fan-equipped mask spacer 1 comprises: a spacer part 2 that is substantially U-shaped and that is capable of engaging with the nostrils of a person wearing a mask 4; and an exhalation fan 3 that is integrally connected to a lower section of the spacer part 2 and that is equipped with a fan for drawing in air from the outside. The spacer part 2 has a pair of leg parts 2a, 2b extending upward from the left and right ends of an upper edge, thereby substantially forming a U-shape. When the exhalation-fan-equipped mask spacer 1 is worn, the spacer part 2 and the exhalation fan 3 form a prescribed angle, whereby an air ventilation space is formed near the wearer of the mask 4. Due to this configuration, the exhalation-fan-equipped mask spacer 1 makes it possible to more efficiently ventilate air residing within the mask 4 while reducing the risk of contamination by viruses.

Description

呼気ファン付きマスクスペーサMask spacer with exhalation fan
　本発明は、花粉やウイルス感染防止用に用いられるマスク内に配置される呼気ファン付きマスクスペーサに関する。 The present invention relates to a mask spacer with an exhalation fan that is placed inside a mask used to prevent pollen and virus infection.
　従来より、花粉や粉塵の体内への侵入を防止する防塵用や、咳やくしゃみなどにより発生する飛沫やウイルスなどの侵入及び飛散を防止する衛生用マスクが使用されている。特に、近年コロナウイルスによる世界的なパンデミックが発生し、衛生的な理由によりマスクを常時着用する場面が非常に多くなっている。このような状況下において、マスクの使用時における装着感の向上を図るために様々な製品が販売されている。 Conventionally, dust-proof masks that prevent pollen and dust from entering the body, and sanitary masks that prevent droplets and viruses generated by coughing and sneezing from entering and scattering have been used. In particular, in recent years, there has been a global pandemic caused by the coronavirus, and there have been an increasing number of situations in which masks are worn all the time for hygienic reasons. Under such circumstances, various products have been sold to improve the comfort of wearing masks when using them.
　そして、マスクを着用していると、マスク面と口とが密着することよって息がマスク内に滞留して息苦しさを感じることがある。この問題は、特に運動時などにおいて顕著となる。このマスクによる生じる息苦しさ対策のため、マスク装着時に口とマスクの間に空間を作って、息苦しさを和らげるための補助具としてマスクスペーサが使用されている。 Also, when wearing a mask, the mask surface and the mouth are in close contact with each other, causing breath to stay inside the mask and make it difficult to breathe. This problem becomes conspicuous especially during exercise. Mask spacers are used as aids for relieving the suffocation by creating a space between the mouth and the mask when the mask is worn, in order to prevent the suffocation caused by the mask.
　また、マスク面と口との間に生じる隙間に滞留した空気を直接換気するために、小型のマスク用ファンを直接マスクと口との間に配置することで、マスク内を喚起する装置が開示されている（例えば、特許文献１参照）。さらに、換気のための対流扇を備えた硬質スポーツマスクも開示されている（例えば、特許文献２参照）。 In addition, in order to directly ventilate the air remaining in the gap between the mask surface and the mouth, a small mask fan is placed directly between the mask and the mouth to ventilate the inside of the mask. (See Patent Document 1, for example). Furthermore, a rigid sports mask with a convection fan for ventilation has also been disclosed (see Patent Document 2, for example).
実用新案登録第3228733号公報Utility Model Registration No. 3228733 特開2016-87376号公報JP 2016-87376 A
　しかしながら、従来のマスクスペーサは、確かにマスクと口との間に空間を形成することはできても、着用者の吐息がマスクス内に未だに滞留し、次の吸気時には滞留した空気を吸うことになる。この結果、マスクスペーサの着用時の息苦しさをある程度は軽減されることはあっても解消されることはなく、最悪の場合には、二酸化炭素の吸入量の増加による頭痛や呼吸困難を引き起こしてしまうという問題がある。 However, although the conventional mask spacer can certainly form a space between the mask and the mouth, the wearer's exhaled breath still stays in the mask, and the remaining air is sucked in during the next inhalation. Become. As a result, although the difficulty of breathing when wearing mask spacers can be alleviated to some extent, it cannot be eliminated. There is a problem of storage.
　また、従来のマスクスペーサは、上述のように着用者の吐息がマスク内に滞留するために、この滞留空気による湿度上昇や温度上昇も、着用者が不快を感じる要因となる。 In addition, with conventional mask spacers, as described above, the wearer's exhaled breath stays inside the mask, and the increase in humidity and temperature caused by this staying air also causes the wearer to feel uncomfortable.
　さらに、上記従来のようなマスク用ファンをマスク内に配置したとしても、比較的小面積のフィルタ部から大風量で吸気するため、使用時にマスクと顔表面との間に隙間が生じ易く、ウイルス飛沫の侵入や飛散という問題を解消できない。この結果、マスク用ファンを使用した場合において感染リスクが一般的なマスクや、マスクスペーサより大きくなるという問題がある。また、従来のマスク用ファンは、騒音が大きいため人前や屋内で使用することが憚られ、さらに、専用のフィルタを要するなどの問題もある。 Furthermore, even if the above-mentioned conventional mask fan is placed inside the mask, a large amount of air is sucked through the relatively small area of the filter, so a gap is likely to occur between the mask and the face surface during use. The problem of intrusion and scattering of droplets cannot be resolved. As a result, there is a problem that the risk of infection when using a mask fan is greater than that of a general mask or mask spacer. In addition, conventional mask fans are noisy, so that they are not suitable for use in public or indoors.
　本発明は、上記課題に鑑みてなされたものであり、マスクの着用時にマスク内に滞留する空気を、ウイルスによる感染リスクを下げながら、より効率的に換気して、着用者の感じる息苦しさや蒸し暑さを解消できる呼気ファン付きマスクスペーサを提供することを目的とする。 The present invention has been made in view of the above problems, and the air that stays in the mask when worn is more efficiently ventilated while reducing the risk of virus infection, so that the wearer feels stuffy and hot. It is an object of the present invention to provide a mask spacer with an exhalation fan capable of resolving sagging.
　上記課題を解決するため、本発明は、マスクの着用者の口近傍とマスクとの間に配置される呼気ファン付きマスクスペーサであって、略Ｕ字形状を有し、前記マスクの着用者の鼻翼部分に係止可能なスペーサ部と、前記スペーサ部の下方に一体接続され、外方から空気を吸い込むためのファンを内蔵した呼気ファンと、を備え、前記スペーサ部は、上縁左右端から上方に延出する一対の脚部を有することで前記略Ｕ字形状を形成しており、前記呼気ファン付きマスクスペーサの着用時において、前記スペーサ部と前記呼気ファンとが所定角度を成すことで前記マスクの着用者の口近傍に空気の換気空間が形成され、前記スペーサ部及び前記呼気ファンが成す前記所定角度は調整可能であることを特徴とする。 In order to solve the above-mentioned problems, the present invention provides a mask spacer with an exhalation fan, which is arranged between the mask and the vicinity of the mouth of the mask wearer, and has a substantially U-shape. A spacer portion that can be locked to the alar portion, and an exhalation fan that is integrally connected below the spacer portion and has a built-in fan for sucking in air from the outside, wherein the spacer portion extends from the left and right ends of the upper edge. The substantially U-shape is formed by having a pair of legs extending upward, and when the mask spacer with an exhalation fan is worn, the spacer and the exhalation fan form a predetermined angle. An air ventilation space is formed near the mouth of the wearer of the mask, and the predetermined angle formed by the spacer and the exhalation fan is adjustable.
　この呼気ファン付きマスクスペーサにおいて、前記スペーサ部には、通気のために複数の通気孔が形成されることが好ましい。 In this mask spacer with an exhalation fan, it is preferable that the spacer section is formed with a plurality of vent holes for ventilation.
　この呼気ファン付きマスクスペーサにおいて、前記呼気ファンは、少なくともその前面側に外方からの空気を吸い込む吸い込み面と、その背面側に空気を吹き出す吹き出し面とを有し、前記スペーサ部及び前記呼気ファンが前記所定角度を成すことで、前記吹き出し面から吹き出される空気は斜め上方の前記着用者の口近傍に向かって吹き出されることが好ましい。 In this mask spacer with an exhalation fan, the exhalation fan has at least a suction surface on its front side for sucking air from the outside and a blowout surface for blowing air on its back side, and the spacer section and the expiration fan forms the predetermined angle, the air blown from the blowing surface is preferably blown obliquely upward toward the vicinity of the wearer's mouth.
　この呼気ファン付きマスクスペーサにおいて、前記所定角度は鈍角となり、前記呼気ファンの下部が前記着用者の顎に当接することが好ましい。 In this mask spacer with an exhalation fan, it is preferable that the predetermined angle is an obtuse angle and that the lower part of the exhalation fan contacts the chin of the wearer.
　上記課題を解決するため、本発明は、上記呼気ファン付きマスクスペーサを備えることを特徴とするマスク内換気装置である。 In order to solve the above problems, the present invention is an in-mask ventilator characterized by comprising the above mask spacer with an exhalation fan.
　本発明は、マスクの着用者の口近傍とマスクとの間に配置される呼気ファン付きマスクスペーサであって、略Ｕ字形状を有し、マスクの着用者の鼻翼部分に係止可能なスペーサ部と、スペーサ部の下方に一体接続されて外方から空気を吸い込むためのファンを内蔵した呼気ファンと、を備える。スペーサ部は、上縁左右端から上方に延出する一対の脚部を有することで略Ｕ字形状を形成している。呼気ファン付きマスクスペーサの着用時において、スペーサ部と呼気ファンとが所定角度を成すことでマスクの着用者の口近傍に空気の換気空間が形成される。この構成により、本発明に係る呼気ファン付きマスクスペーサでは、マスク内に滞留する空気を、ウイルスによる感染リスクを下げながら、より効率的に換気して、着用者の感じる息苦しさや蒸し暑さを解消できる。 The present invention is a mask spacer with an exhalation fan to be placed between the mask wearer's mouth and the mask, the spacer having a substantially U-shape and being lockable to the mask wearer's nostrils. and an exhalation fan that is integrally connected to the lower part of the spacer part and has a built-in fan for sucking air from the outside. The spacer portion has a pair of legs extending upward from the left and right ends of the upper edge to form a substantially U shape. When the mask spacer with an exhalation fan is worn, an air ventilation space is formed near the mouth of the wearer of the mask by forming a predetermined angle between the spacer portion and the exhalation fan. With this configuration, the mask spacer with an exhalation fan according to the present invention can ventilate the air remaining in the mask more efficiently while reducing the risk of viral infection, and can eliminate the stuffiness and heat that the wearer feels. .
本発明の実施の形態に係る呼気ファン付きマスクスペーサを装着した状態の正面図である。1 is a front view of a state in which a mask spacer with an exhalation fan according to an embodiment of the present invention is attached; FIG. 同上呼気ファン付きマスクスペーサの着用時の側面図である。Fig. 10 is a side view of the same mask spacer with an exhalation fan when worn; （ａ）乃至（ｃ）同上呼気ファン付きマスクスペーサを装着した時の呼気の流れを説明するための図である。FIG. 11(a) to (c) are diagrams for explaining the flow of exhaled air when the same mask spacer with an exhalation fan is attached. 同上実施の形態の変形例に係る呼気ファン付きマスクスペーサ装着時の正面図である。FIG. 11 is a front view when the mask spacer with an exhalation fan according to a modification of the embodiment is attached.
（実施の形態）
　本発明の実施の形態に係る呼気ファン付きマスクスペーサについて図１乃至図４を参照して説明する。マスクスペーサは、マスク装着時に着用者の口とマスクの間に空間をつくることでマスクの着用中に感じる息苦しさを和らげるための補助具であって、立体形状を保持できる部材で構成されている。 (Embodiment)
A mask spacer with an exhalation fan according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. The mask spacer is an auxiliary tool that creates a space between the mask and the mouth of the wearer when wearing the mask, thereby relieving the suffocation felt while wearing the mask. .
　最初に、呼気ファン付きマスクスペーサ１（以下マスクスペーサ１と記載）の全体構成に関して図１を参照しながら説明する。マスクスペーサ１は、図１に示すように、略Ｕ字形状を有してマスク４の着用者の鼻翼部分に係止可能なスペーサ部２と、スペーサ部２の下方に一体接続されて外方から空気を吸い込むためのファンを内蔵した呼気ファン３と、を備える。なお、マスクスペーサ１は、着用者の口（口近傍）とマスク４との間に配置する。 First, the overall configuration of the mask spacer 1 with an exhalation fan (hereinafter referred to as mask spacer 1) will be described with reference to FIG. As shown in FIG. 1, the mask spacer 1 has a substantially U-shaped spacer portion 2 that can be engaged with the alar portion of the wearer's nose of the mask 4. an exhalation fan 3 with a built-in fan for sucking air from. The mask spacer 1 is arranged between the wearer's mouth (near the mouth) and the mask 4 .
　マスク４は、例えば、左右端に設けられたゴム紐（耳紐）で係止され、ポリプロピレン不織布、フィルタなどを多層に積層して構成される非常に軽量な使い捨てタイプ、ガーゼや布生地などのシート材から構成されて使用後に洗濯をすることで付着物を除去して繰り返し使用可能なタイプなどがある。 The mask 4 is, for example, secured by elastic cords (ear cords) provided at the left and right ends, and is made of a very lightweight disposable type made by laminating polypropylene nonwoven fabric, filters, etc. in multiple layers, gauze, cloth, or the like. There is also a type that is composed of a sheet material and can be washed after use to remove adhering matter and can be used repeatedly.
　スペーサ部２は、図１に示すように、上縁の左右端から上方に延出する一対の脚部２ａ，２ｂを有することで略Ｕ字形状を形成しており、着用者の鼻（特に鼻翼部分）にこの脚部２ａ，２ｂが係止される。この脚部２ａ，２ｂの構成によって、スペーサ部２と鼻との間に隙間が生じることを防止し、鼻の横に配置される脚部２ａ，２ｂにより鼻の横からウイルス飛沫の侵入や漏れを軽減する。また、脚部２ａ，２ｂを鼻の横に配置することにより鼻呼吸を阻害しない。 As shown in FIG. 1, the spacer portion 2 has a pair of legs 2a and 2b extending upward from the left and right ends of the upper edge to form a substantially U-shape, which fits the wearer's nose (especially The legs 2a and 2b are engaged with the nose wing portion). This configuration of the legs 2a and 2b prevents the formation of a gap between the spacer 2 and the nose, and the legs 2a and 2b arranged on the sides of the nose prevent virus droplets from entering and leaking from the sides of the nose. reduce Also, by arranging the legs 2a and 2b beside the nose, breathing through the nose is not hindered.
　スペーサ部２は、例えばウレタンなどの強化プラスチック樹脂の軽量且つ強度の高い素材を、比較的柔らかいクッション性素材で覆い、所定厚さ（例えば２～３ｍｍ程度）を有して構成される。また、スペーサ部２には、パンチ穴などで通気のための複数の通気孔２ｃが形成されている。 The spacer part 2 is formed by covering a lightweight and high-strength material such as reinforced plastic resin such as urethane with a relatively soft cushioning material and having a predetermined thickness (eg, about 2 to 3 mm). Further, the spacer portion 2 is formed with a plurality of vent holes 2c for ventilation by punch holes or the like.
　呼気ファン３は、スペーサ部２の下方側において、スペーサ部２と一体接続されている。呼気ファン３は、図２に示すように、スペーサ部２と呼気ファン３とが所定角度を成して呼気ファン３の下部（下端部）３ａが着用者の顎に当接することで、着用者の口とマスク４との間に換気空間Ｓを形成している。この呼気ファン３は、本実施の形態においては、正面視で正方形状を有する箱状体であって、その内部に、比較的に小型の回転ファンが内蔵されている。この回転ファンの電源は市販のモバイルバッテリーやACアダプターをUSBケーブル３ｄ等で接続する。また、ケーブル３ｄを使用する際には、図１及び図２に示すように隙間を作らないようにマスク４の横側のゴム紐の間から配線出しをすることができる。なお、呼気ファン３の形状は箱形状に限定されるものではなく、正面視で正方形以外の矩形や円形などでも良い。 The expiratory fan 3 is integrally connected with the spacer section 2 on the lower side of the spacer section 2 . As shown in FIG. 2, the exhalation fan 3 forms a predetermined angle between the spacer portion 2 and the exhalation fan 3, and the lower portion (lower end portion) 3a of the exhalation fan 3 contacts the chin of the wearer. A ventilation space S is formed between the mouth of the mask and the mask 4. In this embodiment, the expiratory fan 3 is a box-shaped body having a square shape when viewed from the front, and a relatively small rotating fan is built therein. The power supply for this rotating fan is connected to a commercially available mobile battery or AC adapter with a USB cable 3d or the like. Also, when using the cable 3d, the wiring can be led out from between the rubber cords on the lateral side of the mask 4 so as not to create a gap as shown in FIGS. The shape of the expiratory fan 3 is not limited to a box shape, and may be a rectangle or a circle other than a square when viewed from the front.
　スペーサ部２及び呼気ファン３は、図２に示すように、側面視においてその角度を調整可能とし、例えば回転ジョイントなど回動できるように一体接続されており、この構成によりマスクスペーサ１が着用者の顔表面に密着することを防止すると共に、口の前に空気の換気空間Ｓを形成できる。そして、角度を調整することで着用者に合わせた換気空間Ｓの容量調整が可能となる。この所定角度（本図においては約１００度）は９０度以上～１２０度以下のいわゆる鈍角となることが好ましい。これによって、マスクスペーサ１そのものの高さを抑えマスクスペーサ１の換気空間Ｓの容積を減らして必要換気量を低減するためである。 As shown in FIG. 2, the spacer part 2 and the expiratory fan 3 are integrally connected, for example, by a rotary joint, so that the angles thereof can be adjusted in a side view. It is possible to form an air ventilation space S in front of the mouth while preventing close contact with the face of the mouth. By adjusting the angle, it is possible to adjust the capacity of the ventilation space S according to the wearer. This predetermined angle (approximately 100 degrees in this drawing) is preferably a so-called obtuse angle of 90 degrees or more and 120 degrees or less. This is because the height of the mask spacer 1 itself is suppressed, the volume of the ventilation space S of the mask spacer 1 is reduced, and the necessary ventilation volume is reduced.
　次に、マスクスペーサ１の装着時の状態を、図２を参照して説明する。本図に示すように、呼気ファン３は、その前面側に外方からの空気を吸うための吸い込み面３ｂと、その背面側に空気を吹き出すための吹き出し面３ｃとを有している。そして、スペーサ部２及び呼気ファン３が所定角度を成すことで、吹き出し面３ｃから吹き出される空気は斜め上方の着用者の口近傍に向かって吹き出される。すなわち、外方からの空気が効率的に着用者の口に向かって直接吹き出されることとなる。これは、着用者の顔表面とマスクスペーサ１との密着性を確保して、換気空間Ｓを形成して、吸気効率を高めるために斜め上向きにするためである。 Next, the state of mounting the mask spacer 1 will be described with reference to FIG. As shown in this figure, the expiratory fan 3 has a suction surface 3b on its front side for sucking air from the outside, and a blowout surface 3c on its back side for blowing out air. By forming a predetermined angle between the spacer portion 2 and the expiratory fan 3, the air blown from the blowing surface 3c is blown obliquely upward toward the vicinity of the wearer's mouth. That is, air from the outside is efficiently blown directly toward the wearer's mouth. This is to secure the close contact between the face surface of the wearer and the mask spacer 1, form the ventilation space S, and direct the face obliquely upward in order to improve the efficiency of air intake.
　次に、マスクスペーサ１の着用時における呼気の流れ状態を、図３を参照して説明する。マスクスペーサ１の着用時においては、マスク４のゴム紐が耳に掛けられ、マスクスペーサ１は使用者の口近傍とマスク４との間に配置される。 Next, the flow state of exhalation when wearing the mask spacer 1 will be described with reference to FIG. When the mask spacer 1 is put on, the rubber string of the mask 4 is hung on the ear, and the mask spacer 1 is arranged between the vicinity of the user's mouth and the mask 4 .
　最初に、吸気時においては、図３（ａ）の矢印Ａ１及びＡ２に示すように、スペーサ部２の通気孔２ｃ及び吸気ファン３の吹き出し口３ｃの両方から吸気される。なお、矢印の太さは空気量を示している。スペーサ部２の脚部２ａ，２ｂが鼻翼に装着されることで、マスクスペーサ１が鼻形状にフィットし、また呼気ファン３の下端部３ａが着用者の顎に当接する。このことで、顔表面（鼻表面）とマスクスペーサ１の上端縁との間に形成される隙間を封止し、空気が側方から侵入することを効率的に抑止する。この結果、マスクスペーサ１を介して確実に吸気でき、且つ空気を吸い込む際に飛沫などによるウイルスが顎側の隙間や鼻近傍の隙間から侵入することを適切に防止する。 First, at the time of air intake, as indicated by arrows A1 and A2 in FIG. The thickness of the arrow indicates the amount of air. By attaching the legs 2a and 2b of the spacer part 2 to the wings of the nose, the mask spacer 1 fits the shape of the nose, and the lower end 3a of the exhalation fan 3 contacts the chin of the wearer. As a result, the gap formed between the face surface (nose surface) and the upper edge of the mask spacer 1 is sealed to effectively prevent air from entering from the side. As a result, air can be reliably inhaled through the mask spacer 1, and viruses such as droplets are properly prevented from entering through the gap on the chin side and the gap near the nose when inhaling air.
　次に、吐き出し初期においては、図３（ｂ）の矢印Ａ３及びＡ４に示すように、スペーサ部２の通気孔２ｃから大きく排気され、吸気ファン３の吹き出し口３ｃからは多少吸気される。最後に、吐き出し～吸気間のブランク時（吐き出しの完了時）において、図３（ｃ）の矢印Ａ５及びＡ６に示すように、スペーサ部２の通気孔２ｃから多少排気され、排気の減圧によって吸気ファン３の吹き出し口３ｃからは多くの空気がマスク４の内部に吹き出される。この結果、換気空間Ｓ内が効率的に換気されて、マスク着用時に着用者が感じていた息苦しさや蒸れなどを確実に解消できる。また、感染症対策等のために夏の高温・多湿といった環境下でマスク４を着用した場合であっても、体温のさらなる上昇を抑制できる。さらに、この構造により、マスクスペーサ１の着用者の吐息が効率的に下方に流れるようになり、着用者の吐息がマスクスペーサ１と顔表面の間に形成される隙間から上方に漏れることがなくなり、眼鏡の曇りなども防止できる。 Next, at the initial stage of discharge, as indicated by arrows A3 and A4 in FIG. Finally, during a blank period between exhalation and intake (when exhalation is completed), as indicated by arrows A5 and A6 in FIG. A large amount of air is blown into the mask 4 from the outlet 3c of the fan 3. - 特許庁As a result, the inside of the ventilation space S is efficiently ventilated, and the suffocation and stuffiness felt by the wearer when wearing the mask can be reliably eliminated. In addition, even when the mask 4 is worn in a hot and humid environment in summer as a countermeasure against infectious diseases, it is possible to suppress a further increase in body temperature. Furthermore, this structure allows the exhaled breath of the wearer of the mask spacer 1 to flow downward efficiently, and prevents the exhaled breath of the wearer from leaking upward through the gap formed between the mask spacer 1 and the face surface. , fogging of glasses can be prevented.
　すなわち、呼吸の際、息を吐いてから吸うまでの間に、吸気ファン３を介して吸気、マスクスペーサ１を介して排気することにより、吐息に含まれる二酸化炭素のマスク４内での滞留を防止して、マスク４の装着時の頭痛や呼吸困難を防止できると共に、マスク４内の湿度上昇も抑制できる。 That is, during breathing, air is taken in through the intake fan 3 and exhausted through the mask spacer 1 during the period from exhalation to inhalation, thereby preventing retention of carbon dioxide contained in the exhaled breath in the mask 4. It is possible to prevent headaches and dyspnea when wearing the mask 4, and to suppress an increase in humidity inside the mask 4. - 特許庁
　また、スペーサ部２及び呼気ファン３が所定角度を成し、呼気ファン３からマスク内に上向きに給気できるため、ファンからの吹き出し風の圧力がマスクスペーサ１内に効率良く伝わる。この結果、圧損を低減でき、呼気ファン３の内蔵ファンのモーター出力を小さくでき呼気ファン３の小型化を実現できる。 In addition, the spacer part 2 and the exhalation fan 3 form a predetermined angle, and the air can be supplied upward from the exhalation fan 3 into the mask, so the pressure of the air blown from the fan is efficiently transmitted to the inside of the mask spacer 1 . As a result, the pressure loss can be reduced, the motor output of the internal fan of the expiratory fan 3 can be reduced, and the size of the expiratory fan 3 can be reduced.
　さらに、スペーサ部２と呼気ファン３とが成す角度を鈍角にすることで、マスクスペーサ１の高さを抑えて換気空間Ｓの容量を減らし、必要換気量を低減できる。この結果、低騒音化を実現でき、消費電力も低減できる。また、呼気ファン３に内蔵されるファンによる換気量を最小限に抑えられるため、マスク４と顔表面との隙間からのウイルス飛沫の飛散を抑えられる。 Furthermore, by making the angle formed by the spacer part 2 and the expiratory fan 3 an obtuse angle, the height of the mask spacer 1 can be suppressed, the capacity of the ventilation space S can be reduced, and the required ventilation volume can be reduced. As a result, noise reduction can be achieved, and power consumption can be reduced. In addition, since the amount of ventilation by the fan built into the exhalation fan 3 can be minimized, the scattering of virus droplets from the gap between the mask 4 and the face surface can be suppressed.
　以上の説明のように、本実施の形態はマスク４の着用者の口近傍とマスク４との間に配置されるマスクスペーサ１であって、略Ｕ字形状を有し、マスク４の着用者の鼻翼部分に係止可能なスペーサ部２と、スペーサ部２の下方に一体接続されて外方から空気を吸い込むためのファンを内蔵した呼気ファン３と、を備える。スペーサ部２は、上縁左右端から上方に延出する一対の脚部２ａ，２ｂを有することで略Ｕ字形状を形成している。マスクスペーサ１の着用時において、スペーサ部２と呼気ファン３とが所定角度を成すことでマスク４の着用者の口近傍に空気の換気空間Ｓが形成される。この構成により、マスクスペーサ１は、マスク４内に滞留する空気を、ウイルスによる感染リスクを下げながら、より効率的に換気して、着用者の感じる息苦しさや蒸し暑さを解消できるマスクスペーサ１を提供する。 As described above, in this embodiment, the mask spacer 1 arranged between the mask 4 and the vicinity of the mouth of the wearer of the mask 4 has a substantially U shape, and the mask spacer 1 is arranged between the mask 4 and the wearer's mouth. and an exhalation fan 3 which is integrally connected to the lower part of the spacer part 2 and incorporates a fan for sucking air from the outside. The spacer portion 2 has a pair of legs 2a and 2b extending upward from the left and right ends of the upper edge to form a substantially U shape. When the mask spacer 1 is worn, an air ventilation space S is formed near the mouth of the wearer of the mask 4 by forming a predetermined angle between the spacer part 2 and the exhalation fan 3 . With this configuration, the mask spacer 1 can ventilate the air remaining in the mask 4 more efficiently while reducing the risk of viral infection, and can eliminate the stuffiness and heat that the wearer feels. do.
　すなわち、市販の不織布マスクなどの内部にマスクスペーサ１を装着使用することで、感染リスクを増加させることなく、呼吸困難やマスク頭痛、マスク内の蒸れを防止できる。また、上記従来のファン付きマスクと異なり市販の不織布マスクや布マスクが使用でき、かつ低騒音となる。 That is, by attaching the mask spacer 1 inside a commercially available non-woven mask, it is possible to prevent dyspnea, mask headache, and stuffiness inside the mask without increasing the risk of infection. In addition, unlike the above-mentioned conventional fan-equipped mask, a commercially available non-woven fabric mask or cloth mask can be used, and noise is reduced.
　なお、本発明は、上記実施の形態の構成に限られず、発明の趣旨を変更しない範囲で種々の変形が可能である。例えば、マスクスペーサ１を備えるマスク内換気装置として用いても良い。また、図４に示すように、風量不足の場合には複数個の呼気ファン３を並設しても良い。また、学習や集中を要するデスクワーク時にマスクスペーサ１単体をゴム紐等で装着することにより、口周りの空気の滞留を防ぎ呼吸改善する効果があり、その結果、学習効率・作業効率の向上が期待できる。さらに、呼気ファン３のファン電流の増減間隔から呼吸速度（息を吐いてから吸うまでの時間）を検知して呼吸間隔に応じた換気量とすることにより、息苦しさの軽減と騒音低減及び飛沫散布による感染リスクを抑えることも考え得る。 It should be noted that the present invention is not limited to the configuration of the above-described embodiment, and various modifications are possible without changing the gist of the invention. For example, the mask spacer 1 may be used as an in-mask ventilator. Also, as shown in FIG. 4, a plurality of expiratory fans 3 may be installed in parallel when the air volume is insufficient. In addition, by attaching the mask spacer 1 alone with a rubber string or the like during desk work that requires study and concentration, it has the effect of preventing air from accumulating around the mouth and improving breathing, and as a result, improvement in learning efficiency and work efficiency is expected. can. Furthermore, by detecting the breathing speed (time from exhalation to inhalation) from the increase / decrease interval of the fan current of the exhalation fan 3 and setting the ventilation volume according to the breathing interval, suffocation is reduced, noise is reduced, and droplets are reduced. It is also possible to reduce the risk of infection due to spraying.
　１　マスクスペーサ
　２　スペーサ部
　２ａ，２ｂ　脚部
　２ｃ　通気孔
　３　呼気ファン
　３ａ　下端部
　３ｂ　吸い込み面
　３ｃ　吐き出し面
　４　マスク
　Ｓ　換気空間 REFERENCE SIGNS LIST 1 mask spacer 2 spacer portion 2a, 2b leg portion 2c ventilation hole 3 exhalation fan 3a lower end portion 3b suction surface 3c discharge surface 4 mask S ventilation space

Claims (5)

  1. 　マスクの着用者の口近傍とマスクとの間に配置される呼気ファン付きマスクスペーサであって、
    　略Ｕ字形状を有し、前記マスクの着用者の鼻翼部分に係止可能なスペーサ部と、
    　前記スペーサ部の下方に一体接続され、外方から空気を吸い込むためのファンを内蔵した呼気ファンと、を備え、
    　前記スペーサ部は、上縁左右端から上方に延出する一対の脚部を有することで前記略Ｕ字形状を形成しており、
    　前記呼気ファン付きマスクスペーサの着用時において、前記スペーサ部と前記呼気ファンとが所定角度を成すことで前記マスクの着用者の口近傍に空気の換気空間が形成され、
    　前記スペーサ部及び前記呼気ファンが成す前記所定角度は調整可能である、ことを特徴とする呼気ファン付きマスクスペーサ。     A mask spacer with an exhalation fan disposed between the mouth of the mask wearer and the mask,
    a spacer portion having a substantially U-shape and capable of engaging with the alar portion of the wearer of the mask;
    an exhalation fan that is integrally connected to the lower part of the spacer part and has a built-in fan for sucking air from the outside,
    The spacer part forms the substantially U shape by having a pair of legs extending upward from the left and right ends of the upper edge,
    When the mask spacer with an exhalation fan is worn, an air ventilation space is formed near the mouth of the wearer of the mask by forming a predetermined angle between the spacer portion and the exhalation fan,
    A mask spacer with an exhalation fan, wherein the predetermined angle formed by the spacer portion and the exhalation fan is adjustable.
  2. 　前記スペーサ部には、通気のために複数の通気孔が形成される、ことを特徴とする請求項１記載の呼気ファン付きマスクスペーサ。 The mask spacer with an exhalation fan according to claim 1, characterized in that a plurality of vent holes are formed in the spacer part for ventilation.
  3. 　前記呼気ファンは、少なくともその前面側に外方からの空気を吸い込む吸い込み面と、その背面側に空気を吹き出す吹き出し面とを有し、
    　前記スペーサ部及び前記呼気ファンが前記所定角度を成すことで、前記吹き出し面から吹き出される空気は斜め上方の前記着用者の口近傍に向かって吹き出される、ことを特徴とする請求項１又は２記載の呼気ファン付きマスクスペーサ。     The expiratory fan has at least a suction surface on its front side that sucks in air from the outside and a blowout surface that blows air on its back side,
    2. The air blown from the blowing surface is blown obliquely upward toward the mouth of the wearer by forming the predetermined angle between the spacer portion and the exhalation fan. 2. The mask spacer with an exhalation fan according to 2 above.
  4. 　前記所定角度は鈍角となり、
    　前記呼気ファンの下部が前記着用者の顎に当接する、ことを特徴とする請求項１記載の呼気ファン付きマスクスペーサ。     the predetermined angle is an obtuse angle,
    2. The mask spacer with an exhalation fan according to claim 1, wherein a lower portion of said exhalation fan abuts against said wearer's chin.
  5. 　前記請求項１乃至４の何れか一項に記載の呼気ファン付きマスクスペーサを備えることを特徴とするマスク内換気装置。 A ventilator in a mask, comprising the mask spacer with an exhalation fan according to any one of claims 1 to 4.
PCT/JP2022/020297 2021-08-24 2022-05-14 Exhalation-fan-equipped mask spacer WO2023026603A1 (en)

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JP2021136034A JP6984067B1 (en) 2021-08-24 2021-08-24 Mask spacer with exhalation fan

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000312724A (en) * 1999-04-30 2000-11-14 Kiyoshi Takamoto Mask
CN212814561U (en) * 2020-07-21 2021-03-30 肖坚 Mask auxiliary device
CN213663822U (en) * 2020-10-09 2021-07-13 中国人民解放军国防科技大学 Oxygen-preserving and surface-following plastic protective mask

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000312724A (en) * 1999-04-30 2000-11-14 Kiyoshi Takamoto Mask
CN212814561U (en) * 2020-07-21 2021-03-30 肖坚 Mask auxiliary device
CN213663822U (en) * 2020-10-09 2021-07-13 中国人民解放军国防科技大学 Oxygen-preserving and surface-following plastic protective mask

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