JP4649327B2

JP4649327B2 - Protective mask

Info

Publication number: JP4649327B2
Application number: JP2005376313A
Authority: JP
Inventors: 広宣竹内; 剛人鈴木
Original assignee: Koken Co Ltd
Current assignee: Koken Co Ltd
Priority date: 2005-12-27
Filing date: 2005-12-27
Publication date: 2011-03-09
Anticipated expiration: 2025-12-27
Also published as: JP2007175238A

Description

この発明は防護マスクに関し、より詳しくは防護マスク着用者の口許に飲料水を供給可能な防護マスクに関する。 The present invention relates to a protective mask, and more particularly to a protective mask capable of supplying drinking water to the mouth of the wearer of the protective mask.

従来、例えば作業現場や事故現場で使用される防護マスク等のマスクであって、その着用者の口許に対してマスクの外側から飲料水を供給可能であるものはよく知られている。例えば、特開２００３−２１０５９９号公報（特許文献１）には、面体に導水装置を取り付けたマスクが開示されている。この導水装置は、面体内側に設けられるチューブと面体外側に設けられるカプラソケットとを有するもので、面体に対してカプラソケットが回転可能に取り付けられている。カプラソケットが面体から起立する方向へ回転すると、カプラソケットにつながるチューブが面体の面口部に近づくように移動して、マスク着用者の口許に飲料水を供給することができる。また、カプラソケットが面体に向かって倒れる方向へ回転すると、チューブが面口部から遠ざかるように移動する。
特開２００３−２１０５９９号公報 Conventionally, for example, a mask such as a protective mask used at a work site or an accident site, which can supply drinking water from the outside of the mask to the wearer's mouth, is well known. For example, Japanese Patent Laying-Open No. 2003-210599 (Patent Document 1) discloses a mask in which a water guiding device is attached to a face piece. This water guide device has a tube provided inside the face piece and a coupler socket provided outside the face piece, and the coupler socket is rotatably attached to the face piece. When the coupler socket rotates in a direction to stand up from the face piece, the tube connected to the coupler socket moves so as to approach the face mouth portion of the face piece, so that drinking water can be supplied to the mouth of the mask wearer. Further, when the coupler socket is rotated in a direction that falls toward the face body, the tube moves away from the face opening.
JP 2003-210599 A

特許文献１に開示されたマスクによれば、マスク着用者は、カプラソケットを回転させることによってマスク内のチューブを口許に近づけ、そのチューブの先端から水を吸い込むようにすることによって、マスクの外側にあってカプラソケットがつながる水筒等の貯水容器の水を飲むことができる。水を飲み終わってチューブが邪魔になるときには、カプラソケットを回転させてチューブを口許から遠ざけることができる。このマスクは、貯水容器の水位を口許よりも低くして着用されるが、そのような水位にある水を飲むには、水を強く吸い込むことが必要であり、そのことがマスク着用者の負担になる場合がある。また、その負担を解消するには、貯水容器を手に持って、一時的に水位が口許よりも高くなるように持ち上げればよいが、それでは少なくとも片手の自由が奪われるという事態が生じる。 According to the mask disclosed in Patent Document 1, the mask wearer rotates the coupler socket to bring the tube in the mask closer to the mouthpiece, and sucks water from the tip of the tube, so that the outside of the mask is removed. It is possible to drink water from a water container such as a water bottle to which the coupler socket is connected. When the tube is in the way after drinking water, the coupler socket can be rotated to move the tube away from the mouthpiece. This mask is worn with the water level of the water storage container lower than the mouth level, but in order to drink water at such a level, it is necessary to suck in water strongly, which is a burden on the mask wearer. It may become. Moreover, in order to eliminate the burden, it is only necessary to hold the water storage container in the hand and lift it so that the water level is temporarily higher than the mouthpiece. However, this causes a situation where at least one hand is taken away.

この発明は、マスク着用者が両手の自由を奪われることなく水を飲むことができるように、従来のマスクに改良を施すことを課題にしている。 This invention makes it a subject to give improvement to the conventional mask so that a mask wearer can drink water, without being deprived of freedom of both hands.

前記課題解決のために、この発明が対象とするのは、顔面の少なくとも鼻孔と口許とを覆うことが可能な面体と、前記面体の内外を貫通する導水管とを有し、前記面体外にある前記導水管の外側部先端が給水手段に接続可能である一方、前記面体内にある前記導水管の内側部先端が前記給水手段からの水を前記口許に供給可能である防護マスクである。 In order to solve the above problems, the present invention is directed to a face body that can cover at least a nostril and a mouthpiece of a face, and a water conduit that penetrates the inside and outside of the face body. The tip of the outer portion of the water conduit is connectable to the water supply means, while the tip of the inner portion of the water conduit in the face body is a protective mask capable of supplying water from the water supply means to the mouthpiece.

かかる防護マスクにおいて、この発明が特徴とするところは、次のとおりである。前記導水管が、前記外側部と前記内側部との間に前記面体を貫通する中間部を有し、前記面体が、前記中間部の外周面に水密状態で当接するとともに前記中間部の周方向への摺動を可能にする管状案内部を有している。 In such a protective mask, the present invention is characterized as follows. The water conduit has an intermediate portion that penetrates the face piece between the outer portion and the inner portion, and the face piece is in contact with the outer peripheral surface of the intermediate portion in a water-tight state and the circumferential direction of the intermediate portion It has a tubular guide that allows it to slide.

前記管状案内部の内周面の一部分には、前記中間部の外周面と向かい合う凹部が形成されている。 A recess facing the outer peripheral surface of the intermediate portion is formed in a part of the inner peripheral surface of the tubular guide portion.

前記中間部には、前記外側部において前記導水管の長さ方向へ延びて前記中間部に至る第１外側水路と前記中間部における前記第１外側水路の端部から前記中間部の径方向へ延びていて前記外周面に第１開口を有する第２外側水路とが形成されるとともに、前記内側部において前記導水管の長さ方向へ延びて前記中間部に至る第１内側水路と前記中間部における前記第１内側水路の端部から前記第２外側水路に平行して前記中間部の径方向へ延びていて前記外周面に第２開口を有する第２内側水路とが形成されている。 The intermediate portion includes a first outer water channel that extends in the length direction of the water conduit at the outer portion and reaches the intermediate portion, and a radial direction of the intermediate portion from an end of the first outer water channel in the intermediate portion. A second outer water channel that extends and has a first opening on the outer peripheral surface is formed, and a first inner water channel and the intermediate portion that extend in the length direction of the water conduit at the inner portion and reach the intermediate portion And a second inner water channel extending in the radial direction of the intermediate portion in parallel with the second outer water channel and having a second opening on the outer peripheral surface.

前記導水管は、前記管状案内部において前記中間部が周方向へ回転して、前記第１開口と前記第２開口とが前記内周面のうちの前記凹部と向かい合うときに、前記凹部を介して前記外側部と前記内側部との間が通水可能につながるとともに前記内側部先端が前記口許に接近する方向へ動き、前記第１開口と前記第２開口とが前記内周面のうちの前記凹部以外の部分と向かい合うときに、前記第１開口と前記第２開口との間が前記内周面によって通水不能に塞がれるとともに前記内側部先端が前記口許から遠ざかる方向へ動く。 In the water guide pipe, the intermediate portion rotates in the circumferential direction in the tubular guide portion, and when the first opening and the second opening face the concave portion of the inner peripheral surface, the concave portion is interposed through the concave portion. The outer portion and the inner portion are connected to each other so that water can pass therethrough, and the tip of the inner portion moves in a direction approaching the mouthpiece, and the first opening and the second opening are formed on the inner peripheral surface. When facing the portion other than the concave portion, the space between the first opening and the second opening is blocked by the inner peripheral surface so as not to allow water to pass, and the tip of the inner portion moves away from the mouthpiece.

この発明の好ましい実施態様において、前記給水手段は、前記防護マスク着用者の頭部に固定可能な貯水袋である。 In a preferred embodiment of the present invention, the water supply means is a water storage bag that can be fixed to the head of the wearer of the protective mask.

この発明に係る防護マスクでは、その面体の内外を貫通する導水管の中間部が面体に設けられた管状案内部の内側で周方向に回転して、第１外側水路と第１内側水路とが管状案内部の内周面に形成された凹部を介して通水可能な状態になると、導水管につながる給水手段からの水が導水管の第１内側水路にまで流れて、防護マスク着用者は、手を使うことなしに第１内側水路の先端から水を飲むことができる。導水管は、中間部が周方向へ回転して、中間部に形成されている第１開口と第２開口とが管状案内部における凹部から外れて凹部以外の内周面と向き合うようになると、第１外側水路と第１内側水路との間が通水不能になり、給水手段からの水の流れが止まる。 In the protective mask according to the present invention, the intermediate portion of the water guide pipe penetrating the inside and outside of the face piece rotates in the circumferential direction inside the tubular guide portion provided in the face piece, so that the first outer water passage and the first inner water passage are formed. When water can be passed through the recess formed in the inner peripheral surface of the tubular guide portion, water from the water supply means connected to the water guide pipe flows to the first inner water channel of the water guide pipe. You can drink water from the tip of the first inner waterway without using your hands. When the intermediate portion rotates in the circumferential direction, the first opening and the second opening formed in the intermediate portion come out of the concave portion in the tubular guide portion and face the inner peripheral surface other than the concave portion. Water cannot pass between the first outer water channel and the first inner water channel, and the flow of water from the water supply means stops.

給水手段が防護マスク着用者の頭部に固定可能な貯水袋である態様のこの発明によれば、給水手段の水位が常に口許よりも上にあるから、第１外側水路と第１内側水路とが通水可能につながっているときには、水が自動的にマスク着用者の口許にまで流れる。したがって、マスク着用者は、水を強く吸い込む必要がない。 According to this aspect of the present invention in which the water supply means is a water storage bag that can be fixed to the head of the wearer of the protective mask, the water level of the water supply means is always above the mouth, so the first outer water channel and the first inner water channel When the water is connected, water automatically flows to the mask wearer's mouth. Therefore, the mask wearer does not need to inhale water strongly.

添付の図面を参照して、この発明に係る防護マスクの詳細を説明すると、以下のとおりである。 The details of the protective mask according to the present invention will be described below with reference to the accompanying drawings.

図１，２は、この発明に係る防護マスク１が着用状態にあるときの斜視図と部分破断側面図であるが、図２では、着用者の顔面２と頭部３と防護マスク１における部材の一部のものが仮想線で示されており、また防護マスク１から取り外し可能なフィルタ５０が仮想線で示されている。防護マスク１は、その用途を限定するものではないが、図示例のものは作業現場や工事現場で使用するのに好適なものであって、フルフェイス型の面体１１と、貯水袋１２と、面体１１と貯水袋１２とをつなぐホース１８を有する。 1 and 2 are a perspective view and a partially cutaway side view when the protective mask 1 according to the present invention is in a worn state. In FIG. 2, members of the wearer's face 2, head 3 and protective mask 1 are shown. Are shown in phantom lines, and the filter 50 removable from the protective mask 1 is shown in phantom lines. The protective mask 1 is not intended to limit its application, but the illustrated example is suitable for use at a work site or a construction site, and includes a full face type face body 11, a water storage bag 12, A hose 18 that connects the face piece 11 and the water storage bag 12 is provided.

面体１１は、顔面の少なくとも鼻孔と口許とを覆うことができるように作られるもので、本体１４と、本体１４に組み込まれている一対のレンズ部１６と、吸排気部１７と、導水管２０とを有する。本体１４は、ゴム等の柔軟弾性材料で形成されており、周縁部１９が顔面２に密着可能に形成されるとともに、頭部３の後方に向かって延びる複数の延出部２１を有する。吸排気部１７は、その前面部分にフィルタ取り付け部２２を有し、このフィルタ取り付け部２２には、防塵用や防毒用のフィルタ５０を取り付けることができる。吸排気部１７の内側には吸気用逆止弁（図示せず）が設けられ、本体１４の内側には第２の吸気用逆止弁５３や排気用逆止弁５４が設けられている。導水管２０は、面体１１の内外を貫通しているもので、面体１１の外側へ延びる外側部２０ａと、面体１１の内側へ延びる内側部２０ｂとを有しており、外側部２０ａは矢印Ａ方向へ旋回可能である（図３を併せて参照）。外側部２０ａが旋回したときには、面体１１の内部に延びた内側部２０ｂの開口している先端５１がマスク着用者の口許へ移動して先端５１から貯水袋１２の水が流出するので、防護マスク着用者は、先端５１に口を当ててその水を飲むことができて、しかも両手を自由に使うことができる。 The face body 11 is made so as to cover at least the nostril and mouth of the face, and includes a main body 14, a pair of lens parts 16 incorporated in the main body 14, an intake / exhaust part 17, and a water conduit 20. And have. The main body 14 is made of a flexible elastic material such as rubber, and the peripheral edge portion 19 is formed so as to be in close contact with the face 2 and has a plurality of extending portions 21 extending toward the rear of the head 3. The intake / exhaust portion 17 has a filter mounting portion 22 on the front surface portion, and a filter 50 for dust prevention or poisoning can be attached to the filter mounting portion 22. An intake check valve (not shown) is provided inside the intake / exhaust section 17, and a second intake check valve 53 and an exhaust check valve 54 are provided inside the main body 14. The water guide pipe 20 penetrates the inside and outside of the face body 11, and has an outer portion 20 a that extends to the outside of the face body 11 and an inner portion 20 b that extends to the inside of the face body 11. It is possible to turn in the direction (see also FIG. 3). When the outer portion 20a is turned, the opening tip 51 of the inner portion 20b extending into the inside of the face piece 11 moves to the mouth of the mask wearer, and the water in the water storage bag 12 flows out from the tip 51. The wearer can put the mouth on the tip 51 and drink the water, and can use both hands freely.

貯水袋１２は、その内部に飲料水を貯えておくことができるとともに頭部３の形状になじみ易いフレキシブルな袋であって、その周縁部は頂縁部２５と側縁部２６と底縁部２７とによって形成されていて、頂縁部２５と側縁部２６とにはヘッドバンド１３が取り付けられている。底縁部２７には貯水袋１２の内部に通じる給水用の雌型のコネクタ２８が取り付けられている。 The water storage bag 12 is a flexible bag that can store drinking water therein and is easily adapted to the shape of the head 3, and its peripheral portion has a top edge 25, a side edge 26, and a bottom edge. 27, and the headband 13 is attached to the top edge portion 25 and the side edge portion 26. A female connector 28 for water supply leading to the inside of the water storage bag 12 is attached to the bottom edge portion 27.

面体１１と貯水袋１２との間には、フレキシブルなホース１８が延びている。ホース１８は、前後両端に雄型と雌型とのうちの例えば雄型のコネクタ（図示せず）が取り付けられたものであって、前端のコネクタは導水管２０の雌型コネクタ５２（図３参照）に離脱可能に接続する一方、後端のコネクタが貯水袋１２のコネクタ２８に離脱可能に接続している。 A flexible hose 18 extends between the face piece 11 and the water storage bag 12. The hose 18 has male and female connectors (not shown), for example, male and female attached to the front and rear ends, and the front connector is a female connector 52 (FIG. 3) of the water conduit 20. The connector at the rear end is detachably connected to the connector 28 of the water storage bag 12.

ヘッドバンド１３のそれぞれは、その後方部分を形成している基端部３１が貯水袋１２に固定されており、基端部３１の反対端部である前端部３２に取り付けられたバックル３３によって長さを調節することができる。バックル３３には、掛け止め用部材３４が取り付けられており、その掛け止め用部材３４が面体１１における延出部２１に設けられた受け止め用突起３６に取り外し可能に引っ掛けられている。なお、図示例において、頂縁部２５に取り付けられたヘッドバンド１３ａのみは長さ調節不能に作られているが、このヘッドバンド１３ａを長さ調節可能なものに代えることもできる。また、頂縁部２５と側縁部２６とがつながる部位に取り付けられたヘッドバンド１３ｂの基端部３１は、バックル３３で折り返された前端部３２の影に隠れている。 Each of the headbands 13 has a proximal end portion 31 forming a rear portion thereof fixed to the water storage bag 12, and is long by a buckle 33 attached to a front end portion 32 that is an opposite end portion of the proximal end portion 31. Can be adjusted. A latching member 34 is attached to the buckle 33, and the latching member 34 is removably hooked on a catching projection 36 provided on the extending portion 21 of the face body 11. In the illustrated example, only the headband 13a attached to the top edge portion 25 is made incapable of adjusting the length, but the headband 13a can be replaced with one having an adjustable length. Further, the base end portion 31 of the headband 13 b attached to the portion where the top edge portion 25 and the side edge portion 26 are connected is hidden by the shadow of the front end portion 32 that is folded back by the buckle 33.

図３は、防護マスク１のうちの吸排気部１７の正面図である。図１，２に示された導水管２０は、矢印Ａ方向へ旋回して仮想線の如くほぼ水平な状態になることが可能である。導水管２０が実線の状態にあるときには、導水管２０の内側部２０ｂが図の上方へ延びた状態にあり、防護マスク着用者の口許（図示せず）から遠く離れている。導水管２０が矢印Ａへ旋回すると、内側部２０ｂは図において水平方向へ延びた状態になり、内側部２０ｂの先端５１が防護マスク着用者の口許近傍に移動する。着用者は、その先端５１に口を当てて貯水袋１２の水を飲んだ後に導水管２０を矢印Ａとは反対の方向へ旋回させることによって、先端５１を口許から遠ざけることができる。 FIG. 3 is a front view of the intake / exhaust portion 17 of the protective mask 1. The water guide pipe 20 shown in FIGS. 1 and 2 can turn in the direction of arrow A to be in a substantially horizontal state like a virtual line. When the water conduit 20 is in a solid line state, the inner portion 20b of the water conduit 20 extends upward in the figure and is far away from the mouth (not shown) of the protective mask wearer. When the water guide pipe 20 is turned in the direction of arrow A, the inner part 20b extends in the horizontal direction in the figure, and the tip 51 of the inner part 20b moves to the vicinity of the mouth of the wearer of the protective mask. The wearer can place the tip 51 away from the mouthpiece by turning the water guide tube 20 in the direction opposite to the arrow A after putting the mouth on the tip 51 and drinking water from the water storage bag 12.

図４は、面体１１の内側から見たときの導水管２０の斜視図であって、図中の仮想線は、導水管２０を矢印Ａ方向へ旋回させたときの状態を示している。導水管２０は、面体１１の外にある外側部２０ａと、面体１１の内側にある内側部２０ｂと、外側部２０ａと内側部２０ｂとの間にあって面体１１を内外方向から貫通している中間部２０ｃとを有する。外側部２０ａは、その先端部分のコネクタ５２がホース１８に取り外し可能につながっている。内側部２０ｂの先端５１とその近傍は、防護マスク着用者がくわえやすいように形成されている。中間部２０ｃは、面体１１の吸排気部１７に形成されていて吸排気部１７を内外方向から貫通している管状案内部６１に挿通されている。導水管２０を矢印Ａ方向またはその反対方向へ旋回させるときには、管状案内部６１の内側で中間部２０ｃがその周方向へ回転し、管状案内部６１の内周面６７（図５参照）に対して中間部２０ｃの外周面６６（図５参照）が実質上摺動する。 FIG. 4 is a perspective view of the water conduit 20 when viewed from the inside of the face piece 11, and the imaginary line in the figure shows a state when the water conduit 20 is turned in the direction of arrow A. FIG. The water conduit 20 includes an outer portion 20a outside the face piece 11, an inner portion 20b inside the face piece 11, and an intermediate portion that passes through the face piece 11 from the inside and outside directions between the outer portion 20a and the inner portion 20b. 20c. The outer portion 20a is removably connected to the hose 18 at the tip 52 of the connector 52. The front end 51 of the inner portion 20b and the vicinity thereof are formed so that the wearer of the protective mask can easily hold. The intermediate portion 20c is inserted into a tubular guide portion 61 that is formed in the intake / exhaust portion 17 of the face body 11 and penetrates the intake / exhaust portion 17 from the inside and outside directions. When the water guide pipe 20 is swung in the direction of arrow A or in the opposite direction, the intermediate portion 20c rotates in the circumferential direction inside the tubular guide portion 61, and with respect to the inner peripheral surface 67 (see FIG. 5) of the tubular guide portion 61. The outer peripheral surface 66 (see FIG. 5) of the intermediate portion 20c slides substantially.

図５は、図４のＶ−Ｖ線切断面を示す図である。導水管２０において、外側部２０ａと中間部２０ｃとは、金属または硬質プラスチック製のもので、互いのねじ部６２において外側部２０ａは、ホース１８側の雄型カプラと嵌合する雌型カプラを有するものであるが、図５，６ではそれらカプラの図示が省略されている。内側部２０ｂは、軟質ゴムや軟質プラスチックで形成されており、先端５１の反対端部に対して中間部２０ｃにおける抜け止め付の内端部が挿入されている。かかる導水管２０は、外側部２０ａから中間部２０ｃへ向かって導水管２０の長さ方向へ延びる第１外側水路７１と、中間部２０ｃにおける第１外側水路７１の端部７１ａから中間部２０ｃの径方向へ延びて中間部２０ｃの外周面６６に流出側開口７２ａが形成された第２外側水路７２とを有する。導水管２０はさらに、内側部２０ｂから中間部２０ｃへ向かって導水管２０の長さ方向へ延びる第１内側水路８１と、中間部２０ｃにおける第１内側水路８１の端部８１ａから中間部２０ｃの径方向へ延びて中間部２０ｃの外周面６６に流入側開口８２ａが形成された第２内側水路８２とを有する。第２外側水路７２と第２内側水路８２とは平行しており、これら両水路７２，８２の間には隔壁７３が存在する。中間部２０ｃが回転可能に挿通されている管状案内部６１の内周面６７と中間部２０ｃの外周面６６との間には、これら両周面６６，６７間を水密状態に保つための第１Ｏ−リング６８ａと第２Ｏ−リング６８ｂとが介在している。図の状態にある流出側開口７２ａと流入側開口８２ａとは、図６において詳述されるように、両開口７２ａ，８２ａが実質的な意味において管状案内部６１の内周面６７によって塞がれていて、両開口７２ａ，８２ａ間の通水性が絶たれている。それゆえ、貯水袋１２の水は、第１外側水路７１を経て流出側開口７２ａにまで流れてきても、管状案内部６１の内周壁６７に阻まれてそれよりも先へは流れない。したがって、水は、内側部２０ｂの先端５１から流れ出ることがない。なお、図示例において別部材として示されている外側部２０ａと中間部２０ｃとは一体のものとして作ることも可能である。 FIG. 5 is a view showing a cross section taken along the line V-V in FIG. 4. In the conduit 20, the outer portion 20 a and the intermediate portion 20 c are made of metal or hard plastic, and the outer portion 20 a of each screw portion 62 is a female coupler that fits with the male coupler on the hose 18 side. The couplers are not shown in FIGS. 5 and 6. The inner portion 20 b is formed of soft rubber or soft plastic, and an inner end portion with a retaining portion in the intermediate portion 20 c is inserted into the opposite end portion of the tip 51. The water conduit 20 includes a first outer water channel 71 extending in the length direction of the water conduit 20 from the outer portion 20a toward the intermediate portion 20c, and an end portion 71a of the first outer water channel 71 in the intermediate portion 20c to the intermediate portion 20c. A second outer water channel 72 extending in the radial direction and having an outflow side opening 72a formed on the outer peripheral surface 66 of the intermediate portion 20c. The water conduit 20 further includes a first inner water channel 81 extending in the length direction of the water conduit 20 from the inner portion 20b toward the intermediate portion 20c, and an end portion 81a of the first inner water channel 81 in the intermediate portion 20c to the intermediate portion 20c. A second inner water passage 82 extending in the radial direction and having an inflow side opening 82a formed on the outer peripheral surface 66 of the intermediate portion 20c. The second outer water channel 72 and the second inner water channel 82 are parallel to each other, and a partition wall 73 exists between the two water channels 72 and 82. Between the inner peripheral surface 67 of the tubular guide portion 61 into which the intermediate portion 20c is rotatably inserted and the outer peripheral surface 66 of the intermediate portion 20c, there is a first for keeping the water-tight state between the two peripheral surfaces 66, 67. A 1O-ring 68a and a second O-ring 68b are interposed. As shown in detail in FIG. 6, the outflow side opening 72 a and the inflow side opening 82 a in the state shown in the figure are substantially closed by the inner peripheral surface 67 of the tubular guide portion 61. The water permeability between the openings 72a and 82a is cut off. Therefore, even if the water in the water storage bag 12 flows to the outflow side opening 72a through the first outer water channel 71, it is blocked by the inner peripheral wall 67 of the tubular guide portion 61 and does not flow further than that. Therefore, water does not flow out from the tip 51 of the inner part 20b. It should be noted that the outer portion 20a and the intermediate portion 20c shown as separate members in the illustrated example can be made as a single unit.

図６は、図４におけるＶＩ−ＶＩ線切断面を示す図である。管状案内部６１の内周面６７の一部分には、凹部６９が形成されている（図４を併せて参照）。図５の状態の導水管２０は、矢印Ａ方向へ旋回すると、流出側開口７２ａと流入側開口８２ａとがその凹部６９と向かい合うようになって、流出側開口７２ａにまで流れてきている水は、矢印で示される如く凹部６９を通って流入側開口８２ａへ進入し、第１内側水路８１の先端５１から流出して、防護マスク着用者の飲料水となる。図６の状態の導水管２０は、矢印Ａとは反対の方向へ旋回させて図５の状態に戻せば、水の流出が止まる。 FIG. 6 is a view showing a section taken along line VI-VI in FIG. A concave portion 69 is formed in a part of the inner peripheral surface 67 of the tubular guide portion 61 (see also FIG. 4). When the water guide pipe 20 in the state of FIG. 5 turns in the direction of arrow A, the outflow side opening 72a and the inflow side opening 82a face the recess 69, and the water flowing to the outflow side opening 72a As shown by the arrow, it enters the inflow side opening 82a through the recess 69, flows out from the tip 51 of the first inner water channel 81, and becomes drinking water for the wearer of the protective mask. If the water guide pipe 20 in the state of FIG. 6 is turned in the direction opposite to the arrow A and returned to the state of FIG. 5, the outflow of water stops.

図７は、図５におけるＶＩＩ−ＶＩＩ線切断面の部分拡大図であって、導水管２０の中間部２０ｃと管状案内部６１とを示している。中間部２０ｃにおいて第１外側水路７１の端部７１ａから延びる第２外側水路７２は外周面６６にまで延びていて、流出側開口７２ａが管状案内部６１の内周面６７と向かい合っている。また、中間部２０ｃの外周面６６には、流出側開口７２ａを囲むようにＯ−リング７２ｃが取り付けられている。Ｏ−リング７２ｃは内周面６７に圧接しており、流出側開口７２ａが内周面６７のうちで凹部６９以外の部分と向き合っているときの流出側開口７２ａは、実質的に内周面６７によって塞がれた状態にある。したがって、貯水袋１２の水は、流出側開口７２ａから流出して流入側開口８２ａへ流入するということがない。かように作用するＯ−リング７２ｃは、流出側開口７２ａに代えて流入側開口８２ａを囲むように使用することもできるし、２個使用して両開口７２ａ，８２ａのそれぞれを囲むようにすることもできる。中間部２０ｃが回転して第２外側水路７２が仮想線で示された状態になると、流出側開口７２ａが凹部６９と向かい合う。このときに流入側開口８２ａもまた凹部６９と向かい合うので（図６参照）、防護マスク着用者への飲料水の自動的な供給が可能になる。 FIG. 7 is a partially enlarged view of the section taken along line VII-VII in FIG. 5, and shows an intermediate portion 20 c and a tubular guide portion 61 of the water conduit 20. The second outer water channel 72 extending from the end portion 71 a of the first outer water channel 71 in the intermediate portion 20 c extends to the outer peripheral surface 66, and the outflow side opening 72 a faces the inner peripheral surface 67 of the tubular guide portion 61. An O-ring 72c is attached to the outer peripheral surface 66 of the intermediate portion 20c so as to surround the outflow side opening 72a. The O-ring 72c is in pressure contact with the inner peripheral surface 67, and the outflow side opening 72a when the outflow side opening 72a faces a portion of the inner peripheral surface 67 other than the recess 69 is substantially the inner peripheral surface. 67 is closed. Therefore, the water in the water storage bag 12 does not flow out from the outflow side opening 72a and flow into the inflow side opening 82a. The O-ring 72c acting in this way can be used so as to surround the inflow side opening 82a instead of the outflow side opening 72a, or two O-rings 72c can be used to surround each of the openings 72a and 82a. You can also. When the intermediate portion 20c rotates to bring the second outer water channel 72 into the state indicated by the phantom line, the outflow side opening 72a faces the recess 69. At this time, since the inflow side opening 82a also faces the recess 69 (see FIG. 6), it is possible to automatically supply drinking water to the wearer of the protective mask.

このように形成されている防護マスク１では、飲料用の水の水位が口許よりも常に高くなるような貯水袋１２の如き給水手段を使用しても、防護マスク１の内部において不必要に水が流出するということがない。防護マスク１において、給水手段の水位が口許よりも低い場合には、導水管２０を給水可能な状態にしたうえで防護マスク着用者が水を強く吸い込めばよい。 In the protective mask 1 formed in this way, even if water supply means such as a water storage bag 12 is used in which the level of drinking water is always higher than the mouth, water is unnecessarily generated inside the protective mask 1. Will not be leaked. In the protective mask 1, when the water level of the water supply means is lower than the mouth level, the protective mask wearer may suck water strongly after making the water conduit 20 ready to supply water.

この発明によれば、防護マスク着用者が水を飲みたいときにのみ水を自動的に供給可能な防護マスクの製造が可能になる。 According to the present invention, it is possible to manufacture a protective mask that can automatically supply water only when the wearer of the protective mask wants to drink water.

防護マスクの斜視図。The perspective view of a protective mask. 防護マスクの部分破断側面図。The partially broken side view of a protective mask. 防護マスクの部分正面図。The partial front view of a protective mask. 導水管の斜視図。The perspective view of a water conduit. 図４のＶ−Ｖ線切断面を示す図。The figure which shows the VV line | wire cut surface of FIG. 図４のＶＩ−ＶＩ線切断面を示す図。The figure which shows the VI-VI line | wire cut surface of FIG. 図５のＶＩＩ−ＶＩＩ線切断面の部分拡大図。The elements on larger scale of the VII-VII line cut surface of FIG.

Explanation of symbols

１防護マスク
１１面体
１２給水手段（貯水袋）
２０導水管
２０ａ外側部
２０ｂ内側部
２０ｃ中間部
５１内側部先端
６１管状案内部
６６外周面
６７内周面
６９凹部
７１第１外側水路
７１ａ端部
７２第２外側水路
７２ａ第１開口（流出側開口）
８１第１内側水路
８１ａ端部
８２第２内側水路
８２ａ第２開口（流入側開口） 1 Protective mask 11 Face body 12 Water supply means (water bag)
DESCRIPTION OF SYMBOLS 20 Water guide pipe 20a Outer part 20b Inner part 20c Intermediate part 51 Inner part front end 61 Tubular guide part 66 Outer peripheral surface 67 Inner peripheral surface 69 Recess 71 First outer water channel 71a End part 72 Second outer water channel 72a First opening (outflow side opening) )
81 1st inner side waterway 81a End part 82 2nd inner side waterway 82a 2nd opening (inflow side opening)

Claims

A face body capable of covering at least a nostril and a mouthpiece of the face and a water guide pipe penetrating the inside and outside of the face body, and an outer end tip of the water guide pipe outside the face body can be connected to a water supply means. On the other hand, the inner end of the water conduit in the face body is a protective mask capable of supplying water from the water supply means to the mouthpiece,
The water conduit has an intermediate portion that penetrates the face body between the outer portion and the inner portion, and the face body is in contact with the outer peripheral surface of the intermediate portion in a water-tight state and extends in the circumferential direction of the intermediate portion. It has a tubular guide that allows sliding,
A recess facing the outer peripheral surface of the intermediate portion is formed in a part of the inner peripheral surface of the tubular guide portion,
The intermediate portion includes a first outer water channel that extends in the length direction of the water conduit at the outer portion and reaches the intermediate portion, and a radial direction of the intermediate portion from an end of the first outer water channel in the intermediate portion. A second outer water channel that extends and has a first opening on the outer peripheral surface is formed, and a first inner water channel and the intermediate portion that extend in the length direction of the water conduit at the inner portion and reach the intermediate portion A second inner water channel extending in the radial direction of the intermediate portion in parallel with the second outer water channel and having a second opening on the outer peripheral surface is formed from the end of the first inner water channel in
In the water guide pipe, the intermediate portion rotates in the circumferential direction in the tubular guide portion, and when the first opening and the second opening face the concave portion of the inner peripheral surface, the concave portion is interposed through the concave portion. The outer portion and the inner portion are connected to each other so that water can pass therethrough, and the tip of the inner portion moves in a direction approaching the mouthpiece, and the first opening and the second opening are formed on the inner peripheral surface. When facing the portion other than the concave portion, the space between the first opening and the second opening is blocked by the inner peripheral surface so as not to allow water to pass, and the tip of the inner portion moves away from the mouthpiece. The said protective mask characterized by the above-mentioned.

The protective mask according to claim 1, wherein the water supply means is a water storage bag that can be fixed to a head of the wearer of the protective mask.