JP2018000602A - Disposable dust-preventing mask - Google Patents

Disposable dust-preventing mask Download PDF

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JP2018000602A
JP2018000602A JP2016132368A JP2016132368A JP2018000602A JP 2018000602 A JP2018000602 A JP 2018000602A JP 2016132368 A JP2016132368 A JP 2016132368A JP 2016132368 A JP2016132368 A JP 2016132368A JP 2018000602 A JP2018000602 A JP 2018000602A
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bowl
mask body
mask
shaped filter
shape
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JP6690879B2 (en
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宣雄 重松
Yoshio Shigematsu
宣雄 重松
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Shigematsu Works Co Ltd
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Shigematsu Works Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a disposable dust-preventing mask having a mask body with a bowl-shaped filter which maintains the shape thereof and a fastening band, in which the mask is uniformly fitted to a face without burden on ears while wearing.SOLUTION: The present invention includes: a mask body having a bowl-like filter and an air-permeable bowl-like shape-maintaining part which maintains a bowl-like shape of the filter; and an elastic and air-permeable fastening band which covers a substantially entire part of a convex-curved front face of the mask body and extending from both sides of the mask body toward back face side of the mask body. The fastening band is fixed to the mask body at a vicinity of a center line of the mask body in a front view.SELECTED DRAWING: Figure 1

Description

本発明は、使い捨て防塵マスクに関するものである。 The present invention relates to a disposable dust mask.

碗状フィルターと碗状フィルターの碗形状を保持する通気性の碗状の保形具とを有するマスク本体と、マスク本体両側部の上部と下部とをそれぞれ連結する上下２本のしめ紐とを備える使い捨て防塵マスクが特許文献１、２等に開示されている。 A mask body having a bowl-shaped filter and a breathable bowl-shaped shape retainer that holds the bowl shape of the bowl-shaped filter, and two upper and lower fastening strings that connect the upper and lower portions of both sides of the mask body. Disposable dust masks provided are disclosed in Patent Documents 1 and 2 and the like.

特開２００３−３２００４１JP 2003-320041 A 特開２００４−２４２９０５JP2004-242905

特許文献１、２等の従来の使い捨て防塵マスクには、しめ紐の弾性力がマスク本体両側部のしめ紐固定部から保形具を介して顔面に伝達されるので、マスク本体と顔面との密着性がしめ紐固定部近傍部では高く他の部位では低くなり、マスク本体と顔面との密着が不均一になるという問題がある。また、細くて顔面との接触面積が小さな上下２本のしめ紐でマスク本体を顔面に固定するので、防塵マスク装着時のしめ紐のずり落ち、ひいてはマスク本体のずり落ちを防止するために、前記２本のしめ紐中の上側の１本を耳の基部上端に掛ける必要があり、耳に負担が掛かるという問題もある。
本発明は、上記問題に鑑みてなされたものであり、碗状フィルターを有し保形機能を備えるマスク本体と、しめ紐とを備え、マスクと顔面の密着が均一であり、装着時の耳への負担が無い、使い捨て防塵マスクを提供することを目的とする。 In the conventional disposable dust masks such as Patent Documents 1 and 2, the elastic force of the crimping string is transmitted from the crimping string fixing portions on both sides of the mask body to the face via the shape retainer. There is a problem that the adhesion is high in the vicinity of the crimped string fixing portion and low in other portions, and the adhesion between the mask body and the face becomes non-uniform. In addition, since the mask body is fixed to the face with two upper and lower lacing straps that are thin and have a small contact area with the face, in order to prevent the lashing straps from slipping when the dust mask is worn, and thus the mask body slipping, There is a problem that it is necessary to hang the upper one of the two tightening cords on the upper end of the base of the ear, which places a burden on the ear.
The present invention has been made in view of the above problems, and includes a mask body having a hook-shaped filter and a shape-retaining function, and a clasp string, the mask and the face are in close contact, and the ears when worn An object of the present invention is to provide a disposable dust mask that does not burden

上記課題を解決するために、本発明においては、碗状フィルターと前記フィルターの碗形状を保持する通気性の碗状の保形具とを有するマスク本体と、凸状曲面を形成するマスク本体の前面の略全体を覆うと共にマスク本体の両側部からマスク本体の後面側へ延びる伸縮性且つ通気性のしめ紐とを備え、しめ紐は前面視でマスク本体の中心線近傍でマスク本体に固定されていることを特徴とする使い捨て防塵マスクを提供する。
しめ紐は前面視でマスク本体の中心線近傍でマスク本体に固定されているので、防塵マスクを顔面に装着すると、しめ紐のマスク本体の前面の略全体を覆う部分は、マスク本体の両側部方向へ引っ張られて伸び、マスク本体の前面に密着し、マスク本体によって支持される。マスク本体の前面の略全体に、当該略全体を覆うしめ紐から顔面正面方向の力とマスク本体中心線方向の力とが印加される。マスク本体中心線方向の力は相殺される。顔面正面方向の力は、保形具の周縁全体から均一に顔面に伝達される。この結果、マスク本体と顔面の密着が均一になる。しめ紐は、マスク本体の前面の略全体を覆うと共にマスク本体の後面側へ延びるので、防塵マスク装着時に顔面両側部や後頭部で延在する部分も幅広となり、顔面や後頭部との接触面積が大になる。従って、防塵マスク装着時にしめ紐がずり落ちる可能性が低減し、しめ紐を耳の基部上端に掛ける必要性が無くなる。この結果、防塵マスク装着時の耳への負担が無くなる。
本発明の好ましい態様においては、保形具は碗状フィルターの凹状曲面を形成する後面側から碗状フィルターに内嵌合する。
本発明の好ましい態様においては、保形具は碗状フィルターの凸状曲面を形成する前面側から碗状フィルターに外嵌合する。
本発明の好ましい態様においては、保形具は碗状フィルターと一体形成されている。
保形具は、碗状フィルターの凹状曲面を形成する後面側から碗状フィルターに内嵌合しても良く、碗状フィルターの凸状曲面を形成する前面側から碗状フィルターに外嵌合しても良く、或いは、碗状フィルターと一体形成されても良い。
本発明においては、所定の剛性を有する素材で形成された碗状のフィルターから成る保形機能を有するマスク本体と、凸状曲面を形成するマスク本体の前面の略全体を覆うと共にマスク本体の両側部からマスク本体の後面側へ延びる伸縮性且つ通気性のしめ紐とを備え、しめ紐は前面視でマスク本体の中心線近傍でマスク本体に固定されていることを特徴とする使い捨て防塵マスクを提供する。
碗状フィルターと碗状の保形具とを組み合わせてマスク本体に保形機能を持たせるのに代えて、所定の剛性を有する素材で形成した碗状フィルターでマスク本体を構成してマスク本体に保形機能を持たせても良い。保形具を省略することにより部材数が低減する。
本発明の好ましい態様においては、しめ紐は連続した環状体である。
本発明の好ましい態様においては、しめ紐はマスク本体の前面の略全体を覆う部分を長手方向中央部とする帯状体であり、防塵マスクは帯の両端を脱着可能に連結する連結具を備える。
しめ紐は、連続した環状体でも良く、或いはマスク本体の前面の略全体を覆う部分を長手方向中央部とする帯状体でも良い。後者の場合、帯の両端を脱着可能に連結する連結具を設ける必要がある。 In order to solve the above-described problems, in the present invention, a mask body having a bowl-shaped filter and a breathable bowl-shaped shape retainer that holds the bowl shape of the filter, and a mask body that forms a convex curved surface are provided. A stretchable and breathable fastening string that covers substantially the entire front surface and extends from both sides of the mask body to the back side of the mask body. The fastening string is fixed to the mask body in the vicinity of the center line of the mask body when viewed from the front. Disposable dust mask is provided.
The crimp string is fixed to the mask body in the vicinity of the center line of the mask body when viewed from the front, so when the dust mask is attached to the face, the portions covering the entire front surface of the mask body of the string string are on both sides of the mask body. It is stretched by being pulled in the direction, is in close contact with the front surface of the mask body, and is supported by the mask body. A force in the front direction of the face and a force in the direction of the center line of the mask main body are applied to substantially the entire front surface of the mask main body from the squeeze string covering the substantially entire surface. The force in the mask body center line direction is canceled out. The force in the front direction of the face is uniformly transmitted to the face from the entire periphery of the shape holder. As a result, the contact between the mask body and the face becomes uniform. Since the lacing cord covers substantially the entire front surface of the mask body and extends to the rear side of the mask body, the parts extending on both sides of the face and the back of the head when the dust mask is worn are wide, and the contact area with the face and the back of the head is large. become. Therefore, the possibility that the lashing string slips down when the dust mask is attached is reduced, and the necessity of hanging the lashing string on the upper end of the base of the ear is eliminated. As a result, the burden on the ear when wearing the dust mask is eliminated.
In a preferred embodiment of the present invention, the shape retainer is internally fitted to the bowl-shaped filter from the rear side forming the concave curved surface of the bowl-shaped filter.
In a preferred embodiment of the present invention, the shape retainer is externally fitted to the bowl-shaped filter from the front side forming the convex curved surface of the bowl-shaped filter.
In a preferred embodiment of the present invention, the shape retainer is formed integrally with the bowl-shaped filter.
The shape retainer may be internally fitted to the bowl-shaped filter from the rear side that forms the concave curved surface of the bowl-shaped filter, or it is fitted to the bowl-shaped filter from the front side that forms the convex curved surface of the bowl-shaped filter. Alternatively, it may be formed integrally with the bowl-shaped filter.
In the present invention, a mask body having a shape-retaining function composed of a bowl-shaped filter formed of a material having a predetermined rigidity, and substantially the entire front surface of the mask body forming a convex curved surface, and both sides of the mask body A disposable dust-proof mask characterized in that it comprises a stretchable and breathable tightening string extending from the head portion to the rear side of the mask body, and the tightening string is fixed to the mask body in the vicinity of the center line of the mask body in front view. provide.
Instead of combining a bowl-shaped filter and a bowl-shaped shape retainer to give the mask body a shape-retaining function, the mask body is composed of a bowl-shaped filter formed of a material having a predetermined rigidity to form a mask body. A shape retaining function may be provided. By omitting the shape retainer, the number of members is reduced.
In a preferred embodiment of the present invention, the tie string is a continuous annular body.
In a preferred embodiment of the present invention, the tie strap is a belt-like body having a portion covering substantially the entire front surface of the mask body as a central portion in the longitudinal direction, and the dust mask includes a connector for detachably connecting both ends of the belt.
The crimped string may be a continuous annular body, or may be a belt-like body having a portion covering substantially the entire front surface of the mask body as a central portion in the longitudinal direction. In the latter case, it is necessary to provide a connector for detachably connecting both ends of the belt.

本発明の実施例に係る使い捨て防塵マスクの斜視図である。（ａ）はマスク本体の後面側から見た斜視図であり、（ｂ）は顔面に装着した状態でのマスク本体の前面側から見た斜視図である。It is a perspective view of the disposable dust mask which concerns on the Example of this invention. (A) is the perspective view seen from the rear surface side of the mask main body, (b) is the perspective view seen from the front side of the mask main body in the state with which it was mounted | worn to the face. 本発明の実施例に係る使い捨て防塵マスクのマスク本体の構成を示す図である。（ａ）はマスク本体の後面側から見た斜視図であり、（ｂ）は碗状フィルターに形成される前の一対のフィルター片の正面図であり、（ｃ）は接顔部用布片の正面図であり、（ｄ）は保形具の斜視図である。It is a figure which shows the structure of the mask main body of the disposable dust mask which concerns on the Example of this invention. (A) is the perspective view seen from the rear surface side of the mask main body, (b) is a front view of a pair of filter pieces before being formed on the bowl-shaped filter, and (c) is a face piece cloth piece. (D) is a perspective view of a shape retainer.

本発明の実施例に係る使い捨て防塵マスクを説明する。
図１に示すように、使い捨て防塵マスク１は、碗状フィルター２と、碗状フィルター２の凹状曲面を形成する後面側から碗状フィルター２に内嵌合して碗状フィルター２の碗形状を保持する骨組み構造の通気性の碗状の保形具３と、碗状フィルター２の周縁部に接合された環状布片から成る接顔部４と、を有するマスク本体５と、凸状曲面を形成するマスク本体５の前面である碗状フィルター２の前面の略全体を覆うと共にマスク本体５の両側部である碗状フィルター２の両側部からマスク本体５の後面側である碗状フィルター２の後面側へ延びるネット製の伸縮性且つ通気性のしめ紐６と、を備えている。しめ紐６は連続した環状体６’を形成している。しめ紐６は前面視でマスク本体５の上下に延在する中心線である碗状フィルター２の上下に延在する中心線Ｌ近傍で、且つ中心線Ｌの略全長に亙って連続的に、或いは複数の離散点や複数の離散線で、マスク本体５の一部である碗状フィルター２に固定されている。
図１（ｂ）に示すように、防塵マスク１の顔面への装着時には、しめ紐６の碗状フィルター２の両側部から碗状フィルター２の後面側へ延びる部分は、耳の下方で略水平に延在している。
防塵マスク１のマスク本体５は、特許文献１に開示された防塵マスクのしめ紐を除く部分と同一構造であり、以下の手順で製造される。 図２（ｂ）に示すように、左右対称の２枚のフィルター片２ａ、２ａを重ねセンター部２ａ’、２ａ’で溶着して碗状フィルター２を形成する。図２（ｃ）に示すように、ナイロン繊維又はポリエステル繊維製生地の片面にポリウレタン等の軟質樹脂シートを積層した生地を環状にカットして接顔部用布片４ａを形成し、先に形成した碗状フィルター２の周縁部と接顔部用布片４ａの外周とを接合して接顔部４を形成する。次に碗状フィルター２と接顔部４とが一体となったものを裏返し、骨組み構造の通気性の碗状の保形具３を接顔部４の中央開口を通して碗状フィルター２の後面側から碗状フィルター２に内嵌合させて碗状フィルター２の後面に当接させ、碗状フィルター２の碗形状を保持させる。 防塵マスク１を顔面に装着する際には、環状の伸縮性且つ通気性のしめ紐６を径方向外方へ押し広げ、下方から頭部を環状のしめ紐に通し、図１（ｂ）に示すように、しめ紐６の両側部を顔面下部両側部に沿って両耳の下方で略水平に延在させ、しめ紐６の後部を後頭部下部に沿って略水平に延在させる。しめ紐６から径方向外方への付勢力を解除すると、環状のしめ紐６が径方向に収縮して顔面下部両側部と後頭部下部とに密着し、防塵マスク１が顔面に装着される。 The disposable dust mask which concerns on the Example of this invention is demonstrated.
As shown in FIG. 1, the disposable dust mask 1 has a bowl-shaped filter 2 and a bowl-shaped filter 2 having a bowl-like shape by fitting into the bowl-shaped filter 2 from the rear surface side forming the concave curved surface of the bowl-shaped filter 2. A mask main body 5 having a breathable bowl-shaped shape retainer 3 having a skeleton structure to be held, and a face contact portion 4 made of an annular cloth piece joined to the peripheral edge of the bowl-shaped filter 2, and a convex curved surface. Covering substantially the entire front surface of the bowl-shaped filter 2 which is the front surface of the mask body 5 to be formed, and from the both sides of the bowl-shaped filter 2 which is both sides of the mask body 5, And a net-like stretchable and breathable fastening string 6 extending to the rear side. The crimp string 6 forms a continuous annular body 6 '. The tightening strap 6 is continuously in the vicinity of the center line L extending up and down of the bowl-shaped filter 2 which is the center line extending up and down of the mask body 5 in the front view and over substantially the entire length of the center line L. Alternatively, it is fixed to the bowl-shaped filter 2 which is a part of the mask body 5 with a plurality of discrete points or a plurality of discrete lines.
As shown in FIG. 1 (b), when the dust mask 1 is attached to the face, the portions of the tightening string 6 extending from both sides of the hook-like filter 2 to the rear side of the hook-like filter 2 are substantially horizontal below the ears. It extends to.
The mask main body 5 of the dust mask 1 has the same structure as that of the dust mask disclosed in Patent Document 1 except for the tightening string, and is manufactured by the following procedure. As shown in FIG. 2 (b), two symmetrical filter pieces 2 a and 2 a are stacked and welded at the center portions 2 a ′ and 2 a ′ to form a bowl-shaped filter 2. As shown in FIG. 2 (c), a cloth having a soft resin sheet such as polyurethane laminated on one side of a nylon fiber or polyester fiber cloth is cut into an annular shape to form a face piece 4a. The face contact portion 4 is formed by joining the peripheral edge portion of the ridged filter 2 and the outer periphery of the face contact cloth piece 4a. Next, the one in which the bowl-shaped filter 2 and the face part 4 are integrated is turned over, and the frame-shaped breathable bowl-shaped shape retainer 3 having a skeleton structure is passed through the center opening of the face part 4 to the rear side of the bowl-like filter 2 The hook-shaped filter 2 is internally fitted and brought into contact with the rear surface of the bowl-shaped filter 2, and the bowl-shaped filter 2 is held in the shape of the bowl. When the dust mask 1 is attached to the face, the annular stretchable and breathable tightening string 6 is pushed outward in the radial direction, and the head is passed through the annular tightening string from below, as shown in FIG. As shown, the both sides of the crimped string 6 are extended substantially horizontally below both ears along the lower part of the face and the rear part of the crimped string 6 is extended substantially horizontally along the lower back of the head. When the urging force outwardly in the radial direction is released from the crimping string 6, the annular crimping string 6 contracts in the radial direction and comes into close contact with both sides of the lower face and the lower back of the head, and the dust mask 1 is attached to the face.

防塵マスク１においては、しめ紐６は前面視で碗状フィルター２の中心線Ｌ近傍で碗状フィルター２に固定されているので、防塵マスク１を顔面に装着すると、しめ紐６の碗状フィルター前面の略全体を覆う部分は、碗状フィルター２の両側部方向へ引っ張られて伸び、碗状フィルター２の前面に密着し、保形具３によって碗状に形状保持された碗状フィルター２によって支持される。保形具３によって碗状に形状保持された碗状フィルター２の前面の略全体に、当該略全体を覆うしめ紐６から顔面正面方向の力と中心線Ｌ方向の力とが印加される。中心線Ｌ方向の力は相殺される。顔面正面方向の力は、保形具３に伝達され、保形具３の周縁全体から均一に顔面に伝達される。この結果、防塵マスク１と顔面の密着が均一になる。
しめ紐６は、碗状フィルター２の前面の略全体を覆うと共に碗状フィルター２の両側部から碗状フィルター２の後面側へ延びるので、防塵マスク１の装着時に顔面両側部や後頭部に沿って延在する部分も幅広となり、顔面や後頭部との接触面積が大になる。従って、防塵マスク１の装着時にしめ紐６がずり落ちる可能性が低減し、しめ紐６を耳の基部上端に掛ける必要性が無くなる。この結果、防塵マスク１の装着時の耳への負担が無くなる。
しめ紐６は通気性を有するので、しめ紐６の碗状フィルター前面の略全体を覆う部分は、碗状フィルター２の機能を損なわない。
しめ紐６の素材は、上記実施例のようにネットでも良く、伸縮性且つ通気性の布でも良く、多数の小径孔が形成された膜でも良く、他の任意の伸縮性且つ通気性の素材でも良い
保形具３は、上記実施例のように骨組み構造体でも良く、編み目構造体でも良く、多孔板構造体でも良い。通気性があり且つ防塵マスク装着時に碗形状を維持できる剛性を有しておれば良い。
保形具３を、碗状フィルター２の凸状曲面を形成する前面側から碗状フィルター２に外嵌合させても良い。この場合、碗状フィルター２と保形具３とを着脱可能としておけば、保形具３としめ紐６とを繰り返し使用できる。保形具３を碗状フィルター２と一体形成しても良い。この場合、熱可塑性素材から成る保形具３を碗状フィルターに溶着しても良く、或いは加熱プレス加工等により碗状フィルター２を部分的に圧縮硬化させて保形具３を形成しても良い。
碗状フィルター２と碗状の保形具３とを組み合わせてマスク本体５に保形機能を持たせるのに代えて、所定の剛性を有する素材で形成した碗状フィルター２でマスク本体５を構成してマスク本体５に保形機能を持たせても良い。保形具３を省略でき、部材数が低減する。
しめ紐６は、前記実施例のように連続した環状体６’でも良く、或いは図１（ａ）に両端部を一点鎖線で示すように、碗状フィルター２の前面の略全体を覆う部分を長手方向中央部とする帯状体６”でも良い。後者の場合、帯の両端を脱着可能に連結する連結具６ａを設ける必要がある。 In the dust mask 1, the crimp string 6 is fixed to the collar filter 2 in the vicinity of the center line L of the collar filter 2 when viewed from the front, so that when the dust mask 1 is attached to the face, the collar filter of the crimp string 6. The portion covering substantially the entire front surface is stretched by being pulled in the direction of both sides of the bowl-shaped filter 2, is in close contact with the front surface of the bowl-shaped filter 2, and is held by the bowl-shaped filter 2 that is held in a bowl shape by the shape retainer 3. Supported. A force in the front direction of the face and a force in the direction of the center line L are applied to substantially the entire front surface of the bowl-shaped filter 2 held in a bowl shape by the shape retainer 3 from the lace string 6 covering the substantially whole. The force in the direction of the center line L is canceled out. The force in the front direction of the face is transmitted to the shape retainer 3 and is uniformly transmitted from the entire periphery of the shape retainer 3 to the face. As a result, adhesion between the dust mask 1 and the face becomes uniform.
The crimping cord 6 covers substantially the entire front surface of the bowl-shaped filter 2 and extends from both sides of the bowl-shaped filter 2 to the rear side of the bowl-shaped filter 2, so that when the dust mask 1 is worn, along the both sides of the face and the back of the head. The extending part is also wide, and the contact area with the face and the back of the head is increased. Therefore, the possibility that the lacing cord 6 slips down when the dust mask 1 is mounted is reduced, and the need to hang the lacing strap 6 on the upper end of the base of the ear is eliminated. As a result, there is no burden on the ear when the dust mask 1 is worn.
Since the crimped cord 6 has air permeability, the portion of the crimped cord 6 that covers substantially the entire front surface of the bowl-shaped filter does not impair the function of the bowl-shaped filter 2.
The material of the lacing cord 6 may be a net as in the above embodiment, may be a stretchable and breathable cloth, or may be a film having a large number of small-diameter holes, or any other stretchable and breathable material. However, the shape retainer 3 may be a frame structure as in the above embodiment, a stitch structure, or a perforated plate structure. What is necessary is just to have the rigidity which has air permeability and can maintain a bowl shape at the time of dust-proof mask mounting | wearing.
The shape retainer 3 may be externally fitted to the bowl-shaped filter 2 from the front side forming the convex curved surface of the bowl-shaped filter 2. In this case, if the hook-shaped filter 2 and the shape retainer 3 are detachable, the shape retainer 3 and the strap 6 can be used repeatedly. The shape retainer 3 may be integrally formed with the bowl-shaped filter 2. In this case, the shape retainer 3 made of a thermoplastic material may be welded to the bowl-shaped filter, or the shape retainer 3 may be formed by partially compressing and curing the bowl-shaped filter 2 by hot pressing or the like. good.
Instead of combining the bowl-shaped filter 2 and the bowl-shaped shape retainer 3 to give the mask body 5 a shape-retaining function, the mask body 5 is composed of the bowl-shaped filter 2 formed of a material having a predetermined rigidity. Then, the mask body 5 may have a shape retaining function. The shape retainer 3 can be omitted, and the number of members is reduced.
The crimped string 6 may be a continuous annular body 6 ′ as in the above-described embodiment, or a portion covering substantially the entire front surface of the bowl-shaped filter 2 as shown by a one-dot chain line in both ends in FIG. It may be a belt-like body 6 ″ having a central portion in the longitudinal direction. In the latter case, it is necessary to provide a connecting tool 6a for detachably connecting both ends of the belt.

本発明は、保形具を備える使い捨て防塵マスクに広く利用可能である。 INDUSTRIAL APPLICABILITY The present invention can be widely used for disposable dust masks equipped with shape retainers.

１ 使い捨て防塵マスク
２ 碗状フィルター
２ａ フィルター片
２ａ’ センター部
４ 接顔部
４ａ 接顔部用布片
５ マスク本体
６ しめ紐
６’環状体
６”帯状体
６ａ 連結具
Ｌ 碗状フィルターの上下に延在する中心線 DESCRIPTION OF SYMBOLS 1 Disposable dust-proof mask 2 Gutter-shaped filter 2a Filter piece 2a 'Center part 4 Face-contact part 4a Face-piece cloth piece 5 Mask main body 6 Clamp string 6' Ring body 6 "Band-shaped body 6a Connector L Extending centerline

Claims (7)

碗状フィルターと前記フィルターの碗形状を保持する通気性の碗状の保形具とを有するマスク本体と、凸状曲面を形成するマスク本体の前面の略全体を覆うと共にマスク本体の両側部からマスク本体の後面側へ延びる伸縮性且つ通気性のしめ紐とを備え、しめ紐は前面視でマスク本体の中心線近傍でマスク本体に固定されていることを特徴とする使い捨て防塵マスク。 A mask body having a bowl-shaped filter and a breathable bowl-shaped shape retainer for retaining the bowl shape of the filter, and covering substantially the entire front surface of the mask body forming a convex curved surface, and from both sides of the mask body A disposable dust mask comprising a stretchable and breathable crimp string extending toward the rear side of the mask body, and the clamp string is fixed to the mask body in the vicinity of the center line of the mask body in a front view. 保形具は碗状フィルターの凹状曲面を形成する後面側から碗状フィルターに内嵌合することを特徴とする、請求項１に記載の使い捨て防塵マスク。 The disposable dust mask according to claim 1, wherein the shape retainer is fitted into the bowl-shaped filter from the rear surface side forming the concave curved surface of the bowl-shaped filter. 保形具は碗状フィルターの凸状曲面を形成する前面側から碗状フィルターに外嵌合することを特徴とする、請求項１に記載の使い捨て防塵マスク。 The disposable dust mask according to claim 1, wherein the shape retainer is externally fitted to the bowl-shaped filter from the front side forming the convex curved surface of the bowl-shaped filter. 保形具は碗状フィルターと一体形成されていることを特徴とする請求項１に記載の使い捨て防塵マスク。 The disposable dust mask according to claim 1, wherein the shape-retaining tool is integrally formed with the bowl-shaped filter. 所定の剛性を有する素材で形成された碗状のフィルターから成る保形機能を有するマスク本体と、凸状曲面を形成するマスク本体の前面の略全体を覆うと共にマスク本体の両側部からマスク本体の後面側へ延びる伸縮性且つ通気性のしめ紐とを備え、しめ紐は前面視でマスク本体の中心線近傍でマスク本体に固定されていることを特徴とする使い捨て防塵マスク。 A mask body having a shape-retaining function composed of a bowl-shaped filter formed of a material having a predetermined rigidity and a substantially entire front surface of the mask body forming a convex curved surface and covering the mask body from both sides of the mask body. A disposable dust mask comprising a stretchable and breathable fastening string extending to the rear side, and the fastening string is fixed to the mask body in the vicinity of the center line of the mask body in a front view. しめ紐は連続した環状体であることを特徴とする、請求項１乃至５の何れか１項に記載の使い捨て防塵マスク。 The disposable dust mask according to any one of claims 1 to 5, wherein the crimp string is a continuous annular body. しめ紐はマスク本体の前面の略全体を覆う部分を長手方向中央部とする帯状体であり、帯の両端を脱着可能に連結する連結具を備えることを特徴とする、請求項１乃至５の何れか１項に記載の使い捨て防塵マスク。 The crimping string is a band-like body having a portion covering substantially the entire front surface of the mask body as a central portion in the longitudinal direction, and includes a connecting tool that detachably connects both ends of the band. The disposable dust mask according to any one of the above.
JP2016132368A 2016-07-04 2016-07-04 Disposable dust mask Expired - Fee Related JP6690879B2 (en)

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Publication number Priority date Publication date Assignee Title
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