JP2014526305A - Dust mask - Google Patents

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JP2014526305A
JP2014526305A JP2014529603A JP2014529603A JP2014526305A JP 2014526305 A JP2014526305 A JP 2014526305A JP 2014529603 A JP2014529603 A JP 2014529603A JP 2014529603 A JP2014529603 A JP 2014529603A JP 2014526305 A JP2014526305 A JP 2014526305A
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main body
mask
dust
dust mask
fixed tool
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チョン，チョンテ
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チョン，チョンテ
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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
    • A62B18/02—Masks
    • 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
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • 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
    • 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
    • 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
    • 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
    • A41D13/1169—Means for fastening to the user's head using adhesive
    • A41D13/1176—Means for fastening to the user's head using adhesive forming a complete seal at the edges of the mask

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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

本発明は防塵マスクに関する。本発明の防塵マスクは、鼻と口の周りを囲む形態のマスク本体部と、前記本体部の周縁部に外周部が接合されるリング状の接顔部と、前記本体部の内面に着脱可能に提供される定型具とを含む。特に、前記定型具は、吸気孔と排気孔を有する不透水性薄膜で、外周が前記本体部と接顔部との間の接合部分に接触し、表面に放射状に形成された複数の突出ガイドによって、前記外周の端部から前記吸気孔に連結される非接触流路が形成される。本発明の防塵マスクでは、面接によるマスク本体部のフィルターの機能損失が発生しない。そして、防塵マスクの防塵効率が従来に比べて、著しく向上する効果を奏する。
【選択図】図５The present invention relates to a dust mask. The dust mask of the present invention can be attached to and detached from the mask main body portion surrounding the nose and mouth, a ring-shaped face contact portion whose outer peripheral portion is joined to the peripheral edge portion of the main body portion, and the inner surface of the main body portion. Including the fixed form tools provided. In particular, the standard tool is a water-impermeable thin film having an intake hole and an exhaust hole, and a plurality of protruding guides whose outer periphery is in contact with a joint portion between the main body portion and the face-contact portion and are radially formed on the surface. Thus, a non-contact flow path that is connected to the intake hole from the end portion of the outer periphery is formed. In the dust mask of the present invention, the functional loss of the filter of the mask main body due to the interview does not occur. And the dust-proof efficiency of a dust-proof mask has an effect improved remarkably compared with the past.
[Selection] Figure 5

Description

本発明は防塵マスクに関するもので、より詳しくは、周縁部が鼻と口の周辺を囲みながら密閉させる形態の所謂「顔面部−濾過式」防塵マスクに関する。   The present invention relates to a dust mask, and more particularly, to a so-called “face-filtering” dust mask having a peripheral portion sealed while surrounding the periphery of the nose and mouth.

一般に、産業現場では粉塵、埃、ヒューム、悪臭、ガスなど作業者に有害な要素が空気中に分布している。そのため、作業者は防塵マスクを用いるが、この防塵マスクにはフィルターのみを取り替えて半永久的に用いられるものと、一回または数回使用後廃棄されるものがある。後者を「顔面部−濾過式」防塵マスクと言い、本発明の防塵マスクがこれに当る。   In general, elements harmful to workers such as dust, dust, fume, foul odor, and gas are distributed in the air at industrial sites. For this reason, the worker uses a dust mask, and there are two types of dust masks that can be used semipermanently by replacing the filter and those that are discarded once or several times after use. The latter is called a “face-filtering” dust mask, and the dust mask of the present invention corresponds to this.

図１ａ及び図１ｂは大韓民国特許第８０７５０５号に開示された防塵マスク１とこれに挿入された定型具５を示す。開示された防塵マスク１は使用者の鼻と口の周りを囲む形態のマスク本体部２及び上記本体部２の周縁部に外周が接合されるリング状の接顔部３を含み、上記本体部２の内面には格子型リブ（ｒｉｂｓ）からなる定型具５が提供される。   1a and 1b show a dust mask 1 disclosed in Korean Patent No. 807505 and a fixed tool 5 inserted therein. The disclosed dust mask 1 includes a mask main body 2 in a form surrounding the user's nose and mouth, and a ring-shaped face contact portion 3 whose outer periphery is joined to the peripheral edge of the main body 2. 2 is provided with a fixed tool 5 made of grid-type ribs.

その防塵マスク１は接顔部３によって顔面密着性が良く、定型具５によってマスク形態が比較的に良好に維持される長所がある。しかし、呼吸の時に発生する湿気が本体部２に直接接触することによって、防塵フィルターの効率が急速に低下し、さらに防塵マスク１の寿命が短くなるという問題が発生する。   The dust mask 1 has an advantage that the face contact part 3 has good face adhesion, and the mask 5 is relatively well maintained by the standard tool 5. However, when the moisture generated during respiration directly contacts the main body 2, the efficiency of the dustproof filter is rapidly reduced, and the life of the dustproof mask 1 is shortened.

図２ａ及び図２ｂは本出願人による大韓民国特許第９９９８６０号に開示された防塵マスク６とそれに挿入された定型具７を示す。開示された防塵マスク６は、同じく本体部２ａと接顔部３ａとを含み、上記本体部２ａの内面には薄膜型定型具７が提供される。符号７ａは上記定型具７の表面に突出されて、本体部２ａの内面と定型具７とが接触しないようにする突出ガイドである。   2A and 2B show a dust mask 6 disclosed in Korean Patent No. 999860 by the applicant and a fixed tool 7 inserted therein. The disclosed dust mask 6 similarly includes a main body portion 2a and a face-contact portion 3a, and a thin-film mold 7 is provided on the inner surface of the main body portion 2a. Reference numeral 7a denotes a protruding guide that protrudes from the surface of the fixed tool 7 so that the inner surface of the main body 2a and the fixed tool 7 do not come into contact with each other.

その防塵マスク６は上記定型具７の特性によって、使用者の呼吸時に発生する湿気が本体部２ａに接触しないで、上記防塵マスク１の一部の問題点が、ある程度解決されるという長所がある。   The dust mask 6 has the advantage that due to the characteristics of the fixed tool 7, moisture generated during the breathing of the user does not come into contact with the main body 2 a, and some problems of the dust mask 1 are solved to some extent. .

しかし、図示したように、図２ｂの定型具７は周縁部側に所定幅Ｗの接触バンド８が形成されており、マスク本体部２ａの中で上記バンド８に対応して接触する幅ｗだけは呼吸機能及びフィルター機能を喪失するようになる。これは図１ｂの定型具５も同じである。図示しないが、大韓民国特許第１３３８４０号に開示された防塵マスクも同じである。   However, as shown in the figure, the shaped tool 7 of FIG. 2b is formed with a contact band 8 having a predetermined width W on the peripheral side, and only the width w that contacts the band 8 in the mask body 2a. Loses respiratory function and filter function. This is the same for the fixed tool 5 of FIG. Although not shown, the dust mask disclosed in Korean Patent No. 133840 is the same.

結局、従来の防塵マスク１、６は、定型具５、７によってマスク本体部２、２ａの外形がよく維持されるという長所があるが、一方、周縁部の部分で定型具５、７と本体部２、２ａとが互いに面接する所定幅ｗ、Ｗだけ機能損失が発生するという問題があった。   After all, the conventional dust masks 1 and 6 have the advantage that the outer shapes of the mask main body portions 2 and 2a are well maintained by the fixed tools 5 and 7, but on the other hand, the fixed tools 5 and 7 and the main body at the peripheral portion. There is a problem in that functional loss occurs only by predetermined widths w and W where the portions 2 and 2a are in contact with each other.

本発明は上記従来の防塵マスクの問題を解決するために提案されたものである。本発明の目的は、本体部と面接しないように設計された定型具を含み、マスク本体部の機能損失が発生しないようになった防塵マスクを提供することである。   The present invention has been proposed to solve the problems of the conventional dust mask. An object of the present invention is to provide a dust mask that includes a fixed tool designed so as not to come into contact with the main body portion, and prevents loss of function of the mask main body portion.

本発明の防塵マスクは、鼻と口の周りを囲む顔面部空間形態のフィルター本体部と、上記本体部の周縁部に外周部が接合されるリング状の接顔シートと、上記本体部の内面に着脱可能に提供される定型具とを含んで構成される。   The dust mask of the present invention includes a filter body portion in the form of a facial space surrounding the periphery of the nose and mouth, a ring-shaped face sheet in which an outer peripheral portion is joined to a peripheral portion of the body portion, and an inner surface of the body portion And a fixed tool provided in a detachable manner.

特に、上記定型具は、吸気孔と排気孔とを有する不透水性薄膜で、外周端部が上記本体部と接顔部との間の接合部分に接触し、表面に放射状に形成された複数の突出ガイド及び上記外向のラウンドによって、上記外周の端部から上記吸気孔に連結される非接触流路が形成されることを特徴とする。   In particular, the fixed tool is a water-impermeable thin film having an intake hole and an exhaust hole, and an outer peripheral end portion is in contact with a joint portion between the main body portion and the face portion, and a plurality of radially formed surfaces are formed. The projecting guide and the outward round form a non-contact flow path connected to the intake hole from the outer peripheral end.

好ましくは、上記定型具の外周部分は、防塵マスクの柔らかい顔面接触のために、外向のラウンド状に処理される。また、上記ガイドは定型具の外周端部から内側に形成されるようにする。また、上記ガイドは線で、中間に規則的または不規則的な複数の間隔を置いて溝を形成して、上記流路を多様に連結する。   Preferably, the outer peripheral part of the fixed tool is processed in an outward round shape for soft face contact of the dust mask. Further, the guide is formed inward from the outer peripheral end of the fixed tool. In addition, the guide is a line, and a plurality of regular or irregular intervals are formed in the middle to form grooves to connect the flow paths in various ways.

また、好ましくは、上記吸気孔と排気孔には、不必要な方向への空気流れを防止するチェックバルブが設置される。   Preferably, a check valve for preventing an air flow in an unnecessary direction is installed in the intake hole and the exhaust hole.

本発明の防塵マスクによれば、上記定型具は単に外周がマスク本体部と接顔部との間の接合部分に接触しているだけである。言い換えれば、定型具と本体部はどこでも互いに面接しない。従って、本発明の防塵マスクでは、面接によってマスク本体部のフィルターの機能が損失されない。そこで、防塵マスクの防塵効率が従来に比べて、著しく向上される効果を奏する。   According to the dust mask of the present invention, the outer periphery of the above-mentioned fixed tool is merely in contact with the joint portion between the mask main body portion and the face contact portion. In other words, the standard tool and the main body do not meet each other anywhere. Therefore, in the dust mask of the present invention, the function of the filter of the mask body is not lost by the interview. Therefore, there is an effect that the dustproof efficiency of the dustproof mask is remarkably improved as compared with the conventional one.

従来の防塵マスクと挿入定型具を示す図面である。It is drawing which shows the conventional dustproof mask and an insertion fixed tool. 従来の防塵マスクと挿入定型具を示す図面である。It is drawing which shows the conventional dustproof mask and an insertion fixed tool. 従来の他の防塵マスクと挿入定型具を示す図面である。It is drawing which shows the other conventional dustproof mask and insertion fixed tool. 従来の他の防塵マスクと挿入定型具を示す図面である。It is drawing which shows the other conventional dustproof mask and insertion fixed tool. 本発明による防塵マスクの斜視図である。1 is a perspective view of a dust mask according to the present invention. 図３の分解図である。FIG. 4 is an exploded view of FIG. 3. 図３のＡ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line of FIG. 図３に適用された定型具の平面図である。It is a top view of the fixed tool applied to FIG. 図６の定型具の変形実施例である。7 is a modified embodiment of the fixed tool of FIG. 図６の定型具の変形実施例である。7 is a modified embodiment of the fixed tool of FIG. 図６の定型具の変形実施例である。7 is a modified embodiment of the fixed tool of FIG.

以上に記載され、または記載されていない本発明の特徴と効果は、以下で添付された図面を参照して説明する本発明による防塵マスクの好ましい実施例の記載を通じて、さらに明らかになる。   The features and advantages of the present invention described above or not described above will become more apparent through the description of the preferred embodiments of the dust mask according to the present invention described below with reference to the accompanying drawings.

図３によれば、本発明による防塵マスクが符号１０で表示されている。上記防塵マスク１０は、鼻と口をカバーする顔面部空間を形成しており、両側の固定用バンド１４を利用して顔面部の適正位置に配置される。本発明の防塵マスク１０は、顔面部空間を形成するフィルター本体部１１と、上記本体部１１の周縁部に外周部が接合されるリング状の接顔シート１２と、上記本体部１１の内面に提供される定型具２０とを含んで構成される。   According to FIG. 3, a dust mask according to the present invention is indicated by reference numeral 10. The dust mask 10 forms a face part space that covers the nose and mouth, and is disposed at an appropriate position on the face part using the fixing bands 14 on both sides. The dust mask 10 of the present invention includes a filter main body part 11 forming a face part space, a ring-shaped face contact sheet 12 whose outer peripheral part is joined to the peripheral part of the main body part 11, and an inner surface of the main body part 11. The provided fixed tool 20 is comprised.

上記本体部１１の両側には固定用バンド１４が連結され、本発明の防塵マスク１０は上記本体部１１及び接顔シート１２で鼻と口をカバーした状態で、上記バンド１４を頭に巻いて定位置に固定される。   Fixing bands 14 are connected to both sides of the main body 11, and the dust mask 10 of the present invention covers the nose and mouth with the main body 11 and the face sheet 12 and wraps the band 14 around the head. Fixed in place.

より具体的には、上記本体部１１は通常のフィルター材料として、外部の有害空気を濾過することができるＰＰまたはＰＥ不織布などが用いられることができ、半球形、略菱形、その他の形態の顔面部空間を形成するように製作される。好ましくは、上記本体部１１はフィルター材料が複数層積層された構造である。   More specifically, the main body 11 may be made of PP or PE non-woven fabric capable of filtering out harmful harmful air as a normal filter material, hemispherical, substantially rhombus, and other forms of face. It is manufactured so as to form a subspace. Preferably, the main body 11 has a structure in which a plurality of filter materials are laminated.

上記接顔シート１２は、ナイロン纎維やポリエステル纎維などの合成纎維織物または綿織物などの軟質織物の一側面にポリウレタンなどの軟質樹脂をラミネート処理したシート材料である。他の実施例では、ゴム、シリコーン、ウレタンなどの合成ゴム材料を用いることもできるが、顔面接触感や吸水性、柔軟性などを考慮すれば、上述したシート材料が有利であると判断される。   The face sheet 12 is a sheet material obtained by laminating a soft resin such as polyurethane on one side surface of a soft textile such as a synthetic textile such as nylon textile or polyester textile or a cotton textile. In other examples, synthetic rubber materials such as rubber, silicone, and urethane can be used. However, the sheet material described above is considered advantageous in consideration of facial contact feeling, water absorption, flexibility, and the like. .

特に、上記接顔シート１２は鼻面の形態を考慮した異形のリング状に製作される。これによって互いに異なる使用者の顔面形態に柔軟に対応することができ、優れた密着性を提供することができる。   In particular, the face-receiving sheet 12 is manufactured in an irregular ring shape in consideration of the shape of the nose. Accordingly, it is possible to flexibly cope with different user face forms, and provide excellent adhesion.

本発明で、上記本体部１１の周縁部と接顔シート１２の外周部は互いに接合される。接合方法として接着剤、縫製、融着などが用いられることができ、本体部１１が積層構造である場合、各フィルター層はこの時同時に接合される。図面で破線部分は、上記接合後に表と裏を裏返して生じた接合部１３である。   In the present invention, the peripheral part of the main body part 11 and the outer peripheral part of the face contact sheet 12 are joined to each other. Adhesives, sewing, fusion, and the like can be used as a joining method. When the main body 11 has a laminated structure, the filter layers are joined at the same time. A broken line portion in the drawing is a joint portion 13 generated by turning over the front and back after the joining.

以上で、本体部１１と接顔シート１２の構造に対して詳しく説明したが、これらの構造は本発明で特別なものではない。しかし、本発明の防塵マスク１０は特別に設計されて、上記本体部１１の内面に着脱可能に提供される定型具２０を含んで構成される。   The structure of the main body portion 11 and the face contact sheet 12 has been described in detail above, but these structures are not special in the present invention. However, the dust mask 10 of the present invention is specially designed and includes a fixed tool 20 that is detachably provided on the inner surface of the main body 11.

図４によれば、上記定型具２０は１つの吸気孔２１と排気孔２２を有する不透水性薄膜で、本体部１１の内面に着脱可能に提供される。一方、定型具２０は表面に放射状に成形された複数の突出ガイド２３を一体に含み、このガイド２３によって内側定型具２０と外側本体部１１との間に非接触空気流路２４が形成される。   According to FIG. 4, the fixed tool 20 is a water-impermeable thin film having one intake hole 21 and one exhaust hole 22, and is detachably provided on the inner surface of the main body 11. On the other hand, the fixed tool 20 integrally includes a plurality of projecting guides 23 formed radially on the surface, and the guide 23 forms a non-contact air flow path 24 between the inner fixed tool 20 and the outer main body 11. .

ここで、上記定型具２０は不透水性の薄膜でよく、材料としてセルロースエステル、ポリエチレンなどのプラスチック樹脂またはゴム、シリコーンなどのゴム樹脂などを用いることができる。膜の厚さは０．３〜０．６ｍｍが良いが、本発明がこのような定型具２０の材料や厚さに限定されるのではない。   Here, the fixed tool 20 may be a water-impermeable thin film, and a plastic resin such as cellulose ester or polyethylene, or a rubber resin such as rubber or silicone can be used as a material. The thickness of the film is preferably 0.3 to 0.6 mm, but the present invention is not limited to such a material and thickness of the fixed tool 20.

上記ガイド２３は線形に示しているが、複数の突起で構成されることもでき、また線形の場合、図面のように、中間に規則的または不規則的な複数の間隔を置いて溝２５を形成して、上記流路２４の連結をより多様にすることもできる。   Although the guide 23 is shown as being linear, it may be composed of a plurality of protrusions, and in the case of a linear shape, as shown in the drawing, the groove 25 is provided with a plurality of regular or irregular intervals in the middle. By forming, the connection of the said flow path 24 can also be diversified.

図４及び図５によれば、上記定型具２０は外周２８の端部が上記本体部１１と接顔シート１２との間の接合部１３に接触することによって、本体部１１の内面に装着される。そして、上記ガイド２３によって、上記定型具２０の表面には外周２８の端部から上記吸気孔２１に連結される非接触流路２４が形成される。   4 and 5, the fixed tool 20 is mounted on the inner surface of the main body 11 by the end of the outer periphery 28 coming into contact with the joint 13 between the main body 11 and the face sheet 12. The The guide 23 forms a non-contact flow path 24 connected to the suction hole 21 from the end of the outer periphery 28 on the surface of the fixed tool 20.

好ましくは、上記定型具２０の外周２８部分は、図面のように、外向きのラウンドＲ形態に処理される。このラウンドＲ形態は、第一に、ラウンドＲ部分が顔面に接触することによって、防塵マスク１０の接触感及び密着性に効果があり、第二に、本体部１１と定型具２０との間の重畳または面接がなく、定型具２０の外周２８が接合部１３に接触するのに有利な効果がある。   Preferably, the outer peripheral portion 28 of the fixed tool 20 is processed into an outward round R shape as shown in the drawing. This round R form first has an effect on the contact feeling and adhesion of the dust mask 10 by contacting the round R portion with the face, and secondly, between the main body 11 and the fixed tool 20. There is no superposition or interview, and there is an advantageous effect that the outer periphery 28 of the fixed tool 20 comes into contact with the joint portion 13.

このような処理がなかったら、外周２８が顔面を直接に圧迫して不快感を与える一方、顔面によく密着しない。さらに、外周２８部分で本体部１１と定型具２０との間に少しの面接触の可能性がある。このような側面で、本実施例の上記ラウンドＲは、かなり重要な意味がある。   Without such treatment, the outer periphery 28 directly presses the face and gives discomfort, but does not adhere well to the face. Furthermore, there is a possibility of slight surface contact between the main body 11 and the fixed tool 20 at the outer peripheral portion 28. In this aspect, the round R of the present embodiment has a significant meaning.

上記定型具２０と本体部１１との間の面接触の可能性を無くすため、上記ガイド２３の端部３１が定型具２０の外周２８に連結するようにした方が良い。即ち、上記ガイド２３は定型具２０の外周２８の端部から内側に形成される。ただし、符号３１ａのように、上記のように形成されなくてもよい。   In order to eliminate the possibility of surface contact between the fixed tool 20 and the main body 11, it is preferable that the end portion 31 of the guide 23 is connected to the outer periphery 28 of the fixed tool 20. That is, the guide 23 is formed on the inner side from the end of the outer periphery 28 of the fixed tool 20. However, it does not have to be formed as described above as indicated by reference numeral 31a.

一方、上記吸気孔２１と排気孔２２には空気の不必要な方向への流れを防止するバルブ手段がそれぞれ装着される。上記バルブ手段は、定型具２０を貫通して設置され、外側の本体部１１でカバーされる吸気バルブ２６と、上記定型具２０と本体部１１を貫通して設置される排気バルブ２７とを含む。各バルブ２６、２７は一方向にのみ通過させることができる所謂チェックバルブ（ｃｈｅｃｋ−ｖａｌｖｅ）で、それぞれは吸気専用及び排気専用バルブである。   On the other hand, valve means for preventing air from flowing in unnecessary directions is mounted on the intake hole 21 and the exhaust hole 22, respectively. The valve means includes an intake valve 26 installed through the fixed tool 20 and covered by the outer body part 11, and an exhaust valve 27 installed through the fixed tool 20 and the body part 11. . Each of the valves 26 and 27 is a so-called check-valve that can be passed only in one direction, and each is a dedicated intake and exhaust valve.

各バルブ２６、２７は、上記定型具２０の吸気孔２１と排気孔２２にそれぞれ固定されるベース２８ａ、２８ｂと、上記ベース２８ａ、２８ｂ上に装着される柔軟チェック板２９とを含む。吸入されるすべての空気は濾過されなければならないため、吸気バルブ２６は本体部１１でカバーされるが、排気される空気は濾過される必要がないので、排気バルブ２７は本体部１１を貫通して設置される。図面で、符号３０は排気バルブ２７の外側キャップである。   Each of the valves 26 and 27 includes bases 28a and 28b fixed to the intake hole 21 and the exhaust hole 22 of the fixed tool 20, respectively, and a flexible check plate 29 mounted on the bases 28a and 28b. The intake valve 26 is covered by the main body 11 since all the air that is sucked must be filtered, but the exhausted air does not need to be filtered, so the exhaust valve 27 penetrates the main body 11. Installed. In the drawing, reference numeral 30 denotes an outer cap of the exhaust valve 27.

前述したように、本発明の防塵マスク１０は上記本体部１１及び接顔シート１２で鼻と口をカバーした状態で、上記バンド１４を頭に巻いて定位置に固定される。この時、上記定型具２０のラウンドＲによって、防塵マスク１０の顔面接触感は、とても柔らかく、顔面もよく密閉される。   As described above, the dust mask 10 of the present invention is fixed in place by winding the band 14 around the head while the nose and mouth are covered with the main body 11 and the face sheet 12. At this time, due to the round R of the fixed tool 20, the face contact feeling of the dust mask 10 is very soft and the face is well sealed.

そして、上記バルブを通じて着用者は安全に呼吸することができる。吸入時には吸気バルブ２６が開放され、排気時には排気バルブ２７が開放される。まず、吸入時に外部空気はフィルター材料である本体部１１全面を通過しながら濾過され、上記流路２４に沿って流動した後、吸入圧力で開放された吸気バルブ２６を経由して着用者の呼吸器に流入される。   The wearer can breathe safely through the valve. The intake valve 26 is opened during intake, and the exhaust valve 27 is opened during exhaust. First, during inhalation, external air is filtered while passing through the entire surface of the main body 11 that is a filter material, flows along the flow path 24, and then breathes through the intake valve 26 opened by the suction pressure. Into the vessel.

次に、排気時に、吐出空気は上記定型具２０によって遮られて本体部１１に接触せず、単に排気バルブ２７を通じて大気に排出される。従って、呼吸によって上記本体部１１が湿る虞はなく、勿論、呼吸時に湿気によって本体部１１が損傷される虞もない。   Next, during exhaust, the discharge air is blocked by the fixed tool 20 and does not come into contact with the main body 11, but is simply discharged to the atmosphere through the exhaust valve 27. Therefore, there is no possibility that the main body 11 is moistened by respiration, and of course, there is no possibility that the main body 11 is damaged by moisture during respiration.

もし、上記定型具２０が本体部１１に面接する部分があれば、その部分だけの呼吸損失及びフィルターの損失が発生する。従って、使用者の安全な呼吸のための空気を十分に提供することができなくなり、また本体部１１の面積全体を効率的に活用することもできなくなる。   If there is a part where the fixed tool 20 is in contact with the main body part 11, respiratory loss and filter loss occur only in that part. Therefore, it is impossible to provide sufficient air for the user's safe breathing, and the entire area of the main body 11 cannot be used efficiently.

本発明では上記定型具２０の外周２８が上記本体部１１と接顔シート１２との間の接合部１３に接触するように設計して、相互面接の可能性を無くし、この時、定型具２０の表面には上記外周２８の端部から上記吸気孔２１に連結される非接触流路２４を形成する複数の突出ガイド２３を一体に含むことで、このような問題を解決する。   In the present invention, the outer periphery 28 of the fixed tool 20 is designed so as to come into contact with the joint portion 13 between the main body 11 and the face sheet 12, thereby eliminating the possibility of mutual contact. Such a problem is solved by integrally including a plurality of projecting guides 23 forming a non-contact flow path 24 connected to the intake hole 21 from the end of the outer periphery 28 on the surface of the outer surface 28.

図６によれば、本実施例で上記定型具２０は、１つの中央吸気孔２１と１つの一側排気孔２２を有する。ただし、本発明において定型具２０に形成された吸気孔２１と排気孔２２の配置及び数は限定されるものではない。   According to FIG. 6, in the present embodiment, the fixed tool 20 has one central intake hole 21 and one one-side exhaust hole 22. However, the arrangement and number of the intake holes 21 and the exhaust holes 22 formed in the fixed tool 20 in the present invention are not limited.

例えば、図７ａは中央吸気孔と両側排気孔、図７ｂは両側吸気孔と中央下端の排気孔、図７ｃは３つの吸気孔と１つの排気孔をそれぞれ例示しており、これらを本発明に選択的に適用することもできる。   For example, FIG. 7a illustrates a central intake hole and both exhaust holes, FIG. 7b illustrates both intake holes and a central lower exhaust hole, and FIG. 7c illustrates three intake holes and one exhaust hole. It can also be applied selectively.

Claims (4)

鼻と口の周りを囲む顔面部空間形態のフィルター本体部（１１）と、前記本体部の周縁部に外周部が接合されるリング状の接顔シート（１２）と、前記本体部の内面に着脱可能に提供される定型具（２０）とを含む防塵マスクにおいて、前記定型具は、
吸気孔（２１）と排気孔（２２）を有する不透水性薄膜で、
外周部分が防塵マスクの柔らかい顔面接触のために、外向きのラウンド形態に処理され、外周（２８）の端部が前記本体部（１１）と接顔シート（１２）との間の接合部分に接触し、
表面に放射状に形成された複数の突出ガイド（２３）及び前記外向きのラウンド（Ｒ）によって、前記外周（２８）の端部から前記吸気孔に連結される非接触流路（２４）が形成されることを特徴とする防塵マスク。 A filter body part (11) in the form of a face space surrounding the nose and mouth, a ring-shaped face sheet (12) whose outer peripheral part is joined to the peripheral part of the body part, and an inner surface of the body part In the dust mask including the fixed tool (20) provided detachably, the fixed tool is:
An impermeable thin film having an intake hole (21) and an exhaust hole (22),
The outer peripheral part is processed into an outward round shape for the soft face contact of the dust mask, and the end of the outer peripheral part (28) is the joint part between the main body part (11) and the face contact sheet (12). Touch,
A plurality of protruding guides (23) formed radially on the surface and the outward round (R) form a non-contact flow path (24) connected from the end of the outer periphery (28) to the intake hole. Dust mask characterized by being made. 前記ガイド（２３）は定型具（２０）の外周（２８）端部から内側に形成されることを特徴とする請求項１に記載の防塵マスク。   The dust mask according to claim 1, wherein the guide (23) is formed on an inner side from an end of the outer periphery (28) of the fixed tool (20). 前記ガイド（２３）は線形で、中間に規則的または不規則的な複数の間隔を置いて溝を形成して、前記流路を多様に連結させることを特徴とする請求項１に記載の防塵マスク。   The dust guide according to claim 1, wherein the guide (23) is linear and forms grooves at regular intervals or irregular intervals in the middle to connect the flow paths in various ways. mask. 前記吸気孔（２１）と排気孔（２２）には空気の不必要な方向への流れを防止するチェックバルブが設置されることを特徴とする請求項１に記載の防塵マスク。   The dust mask according to claim 1, wherein a check valve for preventing air from flowing in unnecessary directions is installed in the intake hole (21) and the exhaust hole (22).
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