JP6765042B2 - Work face mask - Google Patents
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- JP6765042B2 JP6765042B2 JP2019009858A JP2019009858A JP6765042B2 JP 6765042 B2 JP6765042 B2 JP 6765042B2 JP 2019009858 A JP2019009858 A JP 2019009858A JP 2019009858 A JP2019009858 A JP 2019009858A JP 6765042 B2 JP6765042 B2 JP 6765042B2
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Description
本発明は、塗装作業時などに使用する作業用フェイスマスクに関するものである。 The present invention relates to a work face mask used during painting work and the like.
作業中の呼吸時に粉塵の吸引を防止し、且つ目を保護するフェイスマスクは、視覚を阻害しない透明な前面（レンズ面）を備え、呼吸時における吸気に際して粉塵除去のためのフィルタ部を介するようにしているものである。またレンズ面に曇りが生ずると作業に支障が生ずるので、これらのフェイスマスクには、曇り止め機構を備えている（特許文献１，２）。 The face mask that prevents the suction of dust during work and protects the eyes has a transparent front surface (lens surface) that does not obstruct the vision, and it is necessary to pass through a filter part for removing dust when inhaling during breathing. It is what you are doing. Further, since fogging on the lens surface causes a hindrance to work, these face masks are provided with an anti-fog mechanism (Patent Documents 1 and 2).
例えばゴーグル部とマスク部を合体したフェイスマスク（特許文献１）や、顔面全体を覆う透明なフェイス保護部（＝ゴーグル部）の内側に呼吸用のマスク部を設けたフェイスマスク（特許文献２）においては、呼吸時の吸気がゴーグル部を通過するようにして、ゴーグル部内に常に新鮮な外気が導入されるようにしてレンズ面の防曇を実現している。 For example, a face mask in which a goggle portion and a mask portion are combined (Patent Document 1), or a face mask in which a mask portion for breathing is provided inside a transparent face protection portion (= goggles portion) that covers the entire face (Patent Document 2). In, the inspiratory air during breathing passes through the goggles portion, and fresh outside air is always introduced into the goggles portion to prevent fogging of the lens surface.
すなわち呼吸時の吸気が、付属若しくは付設したフィルタ部を通過してゴーグル部に入り、ゴーグル部から逆止弁を介してマスク部内に入って、そこでマスク装着者の吸気となる。呼気はマスク部から逆止弁を介して直接外気に放出される構成となっている。 That is, the inspiration during breathing passes through the attached or attached filter portion and enters the goggles portion, enters the mask portion from the goggles portion via the check valve, and becomes the intake air of the mask wearer there. The exhaled air is directly discharged from the mask portion through the check valve to the outside air.
上記した従前のフェイスマスクは、呼吸時の吸気が一旦ゴーグル部を通過する構成であるので、特許文献１に示されている作業用フェイスマスクのように、ゴーグル部に防塵用のフィルタ部を付属させたフェイスマスクでは、フィルタ部を頭部背後位置等に別に設け、ゴーグル部と通気パイプで連結する必要があり、作業者にとってフィルタ部はマスク装着時や作業時の邪魔になる。 Since the above-mentioned conventional face mask has a configuration in which the intake air during breathing once passes through the goggles portion, a dustproof filter portion is attached to the goggles portion like the work face mask shown in Patent Document 1. In the face mask, it is necessary to separately provide a filter part at a position behind the head and connect it to the goggles part with a ventilation pipe, and the filter part becomes an obstacle for the operator when wearing the mask or when working.
また特許文献２に示されている作業用フェイスマスクのように顔全体を覆うフェイス保護部（＝ゴーグル部）にフィルタ部を付設するフェイスマスクでは、マスク全体が多重構造となり、且つ全体が嵩張ってしまう。 Further, in a face mask in which a filter portion is attached to a face protection portion (= goggles portion) that covers the entire face like the work face mask shown in Patent Document 2, the entire mask has a multiple structure and the entire mask is bulky. It ends up.
そこで本発明は、小型で且つレンズ面の防曇機能を備えた簡易な構造の作業用フェイスマスクを提案したものである。 Therefore, the present invention has proposed a work face mask having a simple structure that is compact and has an antifogging function on the lens surface.
本発明の請求項１記載に係る作業用フェイスマスクは、前面にレンズ面を備え、顔の上方部分のみを覆って密閉状態で装着されるゴーグル部と、鼻部及び口部を密閉状態で覆う三角形状のマスク部とを、前記マスク部の三角頂点部分をゴーグル部の中央下方部分に侵入させ、各々密閉状態を維持する状態で連結して一体に形成すると共に、頭部装着部材を付設し、前記マスク部に吸気作動の逆止弁を備えたフィルタ部からなる吸気部と呼気作動の逆止弁を備えた呼気部を設け、マスク部の前記侵入部分に、マスク装着時の呼気時のマスク部内圧力上昇で閉口する逆止弁からなる通気部を設けたことを特徴とするものである。 The working face mask according to claim 1 of the present invention has a lens surface on the front surface , covers only the upper part of the face and covers the goggles portion which is worn in a sealed state, and the nose and mouth portions in a sealed state. The triangular mask portion is integrally formed by invading the triangular apex portion of the mask portion into the lower center portion of the goggles portion while maintaining a sealed state, and a head mounting member is attached. , The mask portion is provided with an intake portion including a filter portion having a check valve for intake operation and an exhalation portion having a check valve for exhalation operation, and the invading portion of the mask portion is provided with an exhalation when the mask is attached. It is characterized by providing a ventilation portion including a check valve that closes when the pressure inside the mask rises.
而して本マスクは、塗装作業等の粉塵環境内での作業に使用するもので、頭部装着部材を以て作業者の頭部に装着すると、作業者の顔面はゴーグル部とマスク部で覆われることになり、作業者の呼吸はマスク部に設けられた吸気部と呼気部を通してなされ、フィルタ部によって粉塵の吸引が阻止され、ゴーグル部によって目が保護される。 Therefore, this mask is used for work in a dust environment such as painting work, and when it is attached to the worker's head with a head mounting member, the worker's face is covered with goggles and a mask. As a result, the worker's breathing is performed through the intake part and the exhalation part provided in the mask part, the suction of dust is blocked by the filter part, and the eyes are protected by the goggles part.
本マスクのゴーグル部のレンズ面の防曇は、通気部の通気によってなされる。マスク部内及びゴーグル部内は基本的に大気圧と一致するが、呼吸によってマスク部内の気圧が微妙に変動する。即ち吸気においてはマスク部の圧力が低下し、呼気においてはマスク部内の圧力が高まる。従って吸気によって外気がマスク内に入ると共にマスク部内の圧力が低下して通気部が開口し、湿度が高い呼気によってマスク部の圧力が高まり通気部が閉じるので、吸気時の瞬間に通気部が開口してゴーグル部内の空気が僅かに入れ替わる。このゴーグル部内の空気が僅かずつ入れ替わることでレンズ面の曇りが防止される。 The anti-fog on the lens surface of the goggles of this mask is provided by the ventilation of the ventilation part. The inside of the mask and the goggles basically coincide with the atmospheric pressure, but the pressure inside the mask fluctuates slightly due to breathing. That is, the pressure in the mask portion decreases in inspiration, and the pressure in the mask portion increases in exhalation. Therefore, as the outside air enters the mask due to the intake air, the pressure inside the mask part decreases and the ventilation part opens, and the pressure of the mask part increases and the ventilation part closes due to the exhalation with high humidity, so that the ventilation part opens at the moment of intake. Then, the air inside the goggles is slightly replaced. Fogging of the lens surface is prevented by changing the air in the goggles little by little.
またさらに本発明は、前記のマスクにおいて顔の上方部分を覆うゴーグル部と、三角形状のマスク部において、ゴーグル部の中央下方部分にマスク部の三角頂点部分を侵入させた状態で連結し、当該侵入部分に通気部を設けてなるもので、全体がコンパクトとなり、通気部の形成位置もゴーグル部の中央になりゴーグル部内の換気が効率的に行われる。 Further, in the present invention , the goggle portion that covers the upper portion of the face in the mask and the triangular apex portion of the mask portion are connected to the central lower portion of the goggle portion in the triangular mask portion. Since the intrusion portion is provided with a ventilation portion, the whole is compact, and the formation position of the ventilation portion is also in the center of the goggles portion, so that the ventilation inside the goggles portion is efficiently performed.
また本発明の請求項２記載に係る作業用フェイスマスクは、マスク部の前面に吸気部を設けると共に吸気部の下方に呼気部を設けてなるので、通気出入り箇所がマスクの上下に並んで配置され、通気部におけるゴーグル部内への換気がスムーズに流れる。 Further, the work face mask according to claim 2 of the present invention is provided with an intake portion on the front surface of the mask portion and an exhalation portion below the intake portion, so that the ventilation inlet / outlet portions are arranged side by side above and below the mask. The ventilation into the goggles in the ventilation part flows smoothly.
本発明の構成は上記のとおりで、防曇機能を有するゴーグル部を備えた作業用フェイスマスクの小型化を実現できたものである。 The configuration of the present invention is as described above, and it is possible to realize the miniaturization of the work face mask provided with the goggles portion having the antifogging function.
次に本発明の実施形態について説明する。実施形態に示した作業用フェイスマスクは、ゴーグル部１とマスク部２とヘッドバンド（頭部装着部材）３で構成される。 Next, an embodiment of the present invention will be described. The working face mask shown in the embodiment is composed of a goggle portion 1, a mask portion 2, and a headband (head wearing member) 3.
ゴーグル部１は顔Ａの上方部分を覆う形状で、前面にレンズ面１１を備え、周囲部１２はレンズ枠で顔面に密着する当接面１３は、適宜クッション材で形成してなる。 The goggle portion 1 has a shape that covers the upper portion of the face A, has a lens surface 11 on the front surface, and has a lens frame for the peripheral portion 12 and a contact surface 13 that is in close contact with the face surface is appropriately formed of a cushion material.
マスク部２は、鼻部及び口部を密閉状態で覆う三角形状で、前面部２１はゴム質材（硬質）で形成され、周縁裏面部２２は内方に折返した柔軟性を確保して顔面に密着するようにしてなる。 The mask portion 2 has a triangular shape that covers the nose and mouth in a sealed state, the front surface 21 is made of a rubber material (hard), and the peripheral back surface 22 secures the flexibility of being folded inward to secure the face. It comes into close contact with.
前記のマスク部２は、ゴーグル部１の中央下方部分にマスク部２の三角頂部２３を侵入させた状態で連結し、ヘッドバンド３を使用してゴーグル部１とマスク部２を顔面に装着した際に、ゴーグル部１とマスク部２は各々密封状態となるように形成したものである。 The mask portion 2 was connected to the lower center portion of the goggles portion 1 with the triangular top portion 23 of the mask portion 2 intruded, and the goggles portion 1 and the mask portion 2 were attached to the face using the headband 3. At that time, the goggles portion 1 and the mask portion 2 are formed so as to be in a sealed state.
またマスク部２は吸気部２４、呼気部２５、通気部２６を設けたもので、吸気部２４はマスク部２の正面、呼気部２５は吸気部２４の下方、通気部２６は三角頂部２３に設けたものである。 Further, the mask portion 2 is provided with an intake portion 24, an exhalation portion 25, and a ventilation portion 26. The intake portion 24 is in front of the mask portion 2, the exhalation portion 25 is below the intake portion 24, and the ventilation portion 26 is on the triangular top portion 23. It is provided.
前記の吸気部２４は、外気からマスク部２への通過を許容し、マスク部２から外気への通過を阻止する逆止弁と外気の粉塵のマスク部２内への塵埃の侵入を阻止するフィルタ部を備えている。呼気部２５は、マスク部２内から外気への通過を許容し、外気からマスク部２への通過を阻止する逆止弁で形成されているものである。 The intake unit 24 allows the passage of the outside air to the mask unit 2, and prevents the check valve that prevents the passage of the outside air from the outside air and the dust of the outside air into the mask unit 2. It has a filter section. The expiratory portion 25 is formed of a check valve that allows the passage from the inside of the mask portion 2 to the outside air and blocks the passage from the outside air to the mask portion 2.
通気部２６はゴーグル部１内に突出侵入しているマスク部２の三角頂部２３に設けたもので、ゴーグル部１とマスク部２と間の通気遮断・通過をなす逆止弁で、マスク部２内がゴーグル部１内よりも気圧が高いときに閉口し、マスク部２内がゴーグル部１内よりも気圧が低いときに開口する。 The ventilation portion 26 is provided on the triangular top portion 23 of the mask portion 2 that protrudes and penetrates into the goggles portion 1, and is a check valve that shuts off and passes the ventilation between the goggles portion 1 and the mask portion 2. The inside of the mask portion 2 is closed when the air pressure is higher than that of the goggles portion 1, and the inside of the mask portion 2 is opened when the air pressure is lower than that of the goggles portion 1.
而して本マスクは、塗装作業等の粉塵環境内での作業に使用するもので、一体となっているゴーグル部１及びマスク部２で顔面Ａを覆うと共にヘッドバンド３を締め、ゴーグル部１及びマスク部２を顔面密着させて装着する。 Therefore, this mask is used for work in a dusty environment such as painting work, and the face A is covered with the integrated goggle portion 1 and the mask portion 2 and the headband 3 is fastened, and the goggle portion 1 is used. And the mask portion 2 is put on in close contact with the face.
本マスクを顔面Ａに装着した際の作業者の呼吸は、外気が吸気部２４からマスク部内に入り、呼気部２５から外気に放出され、吸気時に吸気部２４のフィルタによって粉塵が遮断され、またゴーグル部１によって目が保護される。 In the breathing of the operator when the mask is attached to the face A, the outside air enters the mask portion from the intake portion 24 and is discharged from the exhalation portion 25, and the dust is blocked by the filter of the intake portion 24 at the time of intake. The eyes are protected by the goggles portion 1.
特にゴーグル部１のレンズ面１１の防曇は、呼吸時におけるマスク部２内の圧力変動で通気部２６での通気が行われることによって実現するものである。 In particular, the antifogging of the lens surface 11 of the goggles portion 1 is realized by ventilating the venting portion 26 due to the pressure fluctuation in the mask portion 2 during respiration.
吸気時においては、マスク部２の圧力が低下し、呼気においてはマスク部２内の圧力が高まるので、通気部２６は吸気時に開口し、呼気時に閉口することになる。この吸気時の僅かな時間通気部２６が開口し、ゴーグル部１内の空気が吸気部２４を通過した外気と僅かに入れ替わることになる。即ち呼吸のたびにゴーグル内の空気が粉塵除去された外気と僅かずつ入れ替わることになり、ゴーグル部１内の湿度が高まることが防止され、レンズ面１１が曇ることがない。 Since the pressure in the mask portion 2 decreases during inspiration and the pressure inside the mask portion 2 increases during expiration, the ventilation portion 26 opens during inspiration and closes during expiration. The ventilation portion 26 is opened for a short time at the time of intake, and the air in the goggles portion 1 is slightly replaced with the outside air passing through the intake portion 24. That is, the air in the goggles is gradually replaced with the outside air from which dust has been removed each time the breath is taken, the humidity in the goggles portion 1 is prevented from increasing, and the lens surface 11 is not fogged.
また本発明は上記した実施形態に限定されるものではなく、図５に示したようにレンズ面１１ａが並列し、ゴーグル部内空間が二分する眼鏡型ゴーグル部１ａを採用する作業用フェイスマスクにも適用できる。 Further, the present invention is not limited to the above-described embodiment, and as shown in FIG. 5, the present invention is also used for a work face mask that employs a spectacle-type goggle portion 1a in which the lens surfaces 11a are arranged in parallel and the space inside the goggles portion is divided into two. Applicable.
その際には二分される各ゴーグル部空間とマスク部２内と間にそれぞれ通気部２６を設けるようにすれば良いものである。 In that case, a ventilation portion 26 may be provided between each goggle portion space divided into two and the inside of the mask portion 2.
以上のとおりであるから、本発明はゴーグル部１とマスク部２で構成される簡易な小型な作業用マスクに、簡易な構造で防曇機能を付与することができたものである。 As described above, the present invention has made it possible to impart an anti-fog function to a simple and small work mask composed of the goggles portion 1 and the mask portion 2 with a simple structure.
１，１ａ ゴーグル部
１１，１１ａ レンズ面
１２ 周囲部
１３ 当接面
２ マスク部
２１ 前面部
２２ 周縁裏面部
２３ 三角頂部
２４ 吸気部
２５ 呼気部
２６ 通気部
３ ヘッドバンド（頭部装着部材）
1,1a Goggles part 11, 11a Lens surface 12 Peripheral part 13 Contact surface 2 Mask part 21 Front part 22 Peripheral back part 23 Triangular top 24 Intake part 25 Exhalation part 26 Ventilation part 3 Headband (head mounting member)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019009858A JP6765042B2 (en) | 2019-01-24 | 2019-01-24 | Work face mask |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019009858A JP6765042B2 (en) | 2019-01-24 | 2019-01-24 | Work face mask |
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| Publication Number | Publication Date |
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| JP2020116139A JP2020116139A (en) | 2020-08-06 |
| JP6765042B2 true JP6765042B2 (en) | 2020-10-07 |
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| JP2019009858A Active JP6765042B2 (en) | 2019-01-24 | 2019-01-24 | Work face mask |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055455U (en) * | 1983-09-27 | 1985-04-18 | 防衛庁技術研究本部長 | full face mask |
| JPS6083672A (en) * | 1983-10-14 | 1985-05-11 | 山本光学株式会社 | Environmental pollution preventing mask |
| JPS612878A (en) * | 1984-06-06 | 1986-01-08 | レイカル、セイフテイー、リミテツド | Gas mask equipped with pump apparatus |
| US5689833A (en) * | 1995-05-03 | 1997-11-25 | Minnesota Mining And Manufacturing Company | Eye shield for a respiratory mask |
| JPH11290473A (en) * | 1998-04-13 | 1999-10-26 | Yasuo Tachikawa | Protective mask having clouding-proof mechanism |
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