JP2005144020A - Gas mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-safely gas mask which can be easily inflated and can be quickly attached for use, and which can be folded and stored for carrying when it is not in use. <P>SOLUTION: The mask is equipped with a bag-like mask system 1 for covering a face with the peripheral parts inflated in ring-shaped by being filled with a gas G from a shrunk status. An air inlet port 3 provided with a cleaning agent 4 is equipped on mouth/nose parts of the bag-shaped mask system 1. An expired air blow-in port 2 is provided to the bag-shaped mask system 1, which blows the expired air into the bag-shaped mask system 1 to inflate the bag. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a gas mask.

Conventional gas masks (gas masks) are connected to the mask body made of rubber, a pair of goggles, and the intake port of the mask body to absorb (adsorb) toxic gases and bacteria contained in the outside air. And an absorption can that prevents entry into the mask (see, for example, Patent Document 1).
The mask main body is thick (made of rubber having a thickness of about 5 mm), and has a three-dimensional shape corresponding to the shape of the face in advance.
The gas mask is housed in a dedicated cloth bag, and is carried by hanging the cloth bag from the shoulder with a shoulder strap.
JP 2003-164537 A

The mask body is a three-dimensional rubber molding, the goggles are made of a resin plate or a glass plate, the absorption can is large, and the entire gas mask is large and heavy.
Therefore, the conventional gas mask cannot be folded in a small size, is very bulky, and is heavy. Therefore, there is a drawback that it is very disturbing to carry when the gas mask is not used. In particular, when considered for the general public, such large objects cannot always be carried, and there is a drawback that they cannot be used quickly when necessary.

For example, in the event of a building fire at a visiting site or a fire in a tunnel when driving a subway / car, it cannot be used because it does not carry a gas mask. It was not something that could be handled.
In addition, the absorbent in the canister has a limitation in the amount of purification (absorption) of gas, etc., but it is very difficult to judge the remaining amount that can be purified, and it is dangerous and useless when the remaining amount is small There is.

The gas mask according to the present invention includes a bag-shaped mask body that covers at least a peripheral portion of the bag-shaped mask body in a ring shape from a contracted state and covers the face, and has a purifying agent in the mouth-nose corresponding portion of the bag-shaped mask body. An intake port is provided.
Moreover, the said purification agent is made into the sheet form.
The bag-like mask main body is provided with an exhalation-breathing opening for allowing the breath-like inhalation to inflate the bag-like mask main body.
Further, the bag-shaped mask body is a face-to-face portion having an inflated annular edge that bulges and closely contacts the peripheral edge of the face and surrounds the face; And a space portion is formed between the face-to-face portion and the face in the wearing state.
Further, when not in use, the whole is folded and stored in a sealed bag, and in use, the bag is torn out and taken out and expanded and mounted from the folded and contracted state.

According to the gas mask of the present invention, when not in use, it can be folded and stored in a small size, is lightweight, and can be carried anywhere and anytime. Therefore, by always carrying it, it is possible to cope with a sudden situation that cannot be predicted when it occurs, and it can be easily and quickly inflated.
The mask body is elastic due to the gas inside, can be freely deformed, and can be brought into close contact with the face. Therefore, it is possible to maintain gas tightness and obtain a very safe gas mask. Moreover, since it swells and becomes a three-dimensional structure, there is a certain degree of rigidity and a firm wearing state can be obtained.
The gas to be sealed is exhaled, and the mask body can be inflated easily and quickly anytime and anywhere. Further, since the purifier at the intake port is in the form of a sheet, even if it is folded, it is not bulky at the intake port, and the gas mask can be stored in the pocket and can always be carried.

  1, 2, and 3 are a front view, a sectional side view, and a sectional plan view showing an embodiment of a gas mask according to the present invention. The gas mask includes, for example, fine particles in the atmosphere, toxic gas, and stimulus. Since it is intended to protect itself from sexual gases, bacteria, etc., and can be folded in a small size, it can be particularly effective for emergency use and evacuation.

That is, according to FIGS. 1, 2, and 3, the gas mask of the present invention includes the bag-shaped mask body 1 that covers at least the peripheral edge in an annular shape from the contracted state by sealing the gas G and covers the face. An air inlet 3 having a purifying agent (filter) 4 is disposed in the bag-shaped mask body 1.
Although the illustrated mask main body 1 has a peripheral portion that swells in a ring shape, although not illustrated, the peripheral portion may not only swell in a ring shape, but an inner portion thereof may swell when filled with the gas G.

The mask body 1 shown in the figure is swelled and becomes substantially planar with respect to the face (quasi-planar), but although not shown, it swells and becomes a three-dimensional shape corresponding to the shape of the face (head). ────Those that have a three-dimensional surface to cover the jaw, head, and ears ────
Furthermore, the overall shape in front view may be a polygon, a circle, an ellipse, or the like other than a rectangle, as long as the swollen portion is in close contact with the face in a ring shape and covers the face.

More specifically, the bag-shaped mask main body 1 is inflated and closely attached to the peripheral edge of the face so as to surround the face, and the see-through window 7 and the air inlet 3 connected to the inside of the inflated annular edge 5. And a face-to-face portion 6 having As shown in FIGS. 2 and 3, a space portion 8 is formed between the face-facing portion 6 and the face when the gas mask is attached.
That is, the face-to-face portion 6 is connected to the inflating annular edge 5 at the inner peripheral hole portion 9 of the inflating annular edge 5 and outwardly away from the face. The expanded annular edge 5 and the face-to-face portion 6 may be integrated with each other by heat fusion (welding) or adhesion as separate members, or may be made from a common sheet material.

  The face-to-face portion 6 may be filled (in part) with the gas G, but covers (covers) the entire inner peripheral hole portion 9 of the inflated annular edge 5 of the bag-shaped mask body 1, and the inflated annular edge 5. At the same time, it is a sheet-like member that forms a sealed space (space portion 8) inside (except for the air supply / exhaust portion) in a state of being mounted on the face. A transparent window 7 made of a transparent material and serving as a goggle part (lens part) is formed in the eye corresponding part of the face-to-face part 6 in the inner peripheral hole part 9 of the bag-shaped mask body 1.

The sealed space portion 8 formed between the face-to-face portion 6 and the face when the gas mask is attached will be further described. The state between the face-to-face portion 6 and the mouth (nose) with the gas mask attached. The breathing space 13 is formed so that the mask body 1 does not move due to breathing and helps breathing.
A visual space 14 is formed between the face-to-face portion 6 and the eyes.

  The mask body 1 may be transparent or opaque, colored or colorless, but the face-facing portion 6 may be a transparent member, and the eye-corresponding portion of the face-facing portion 6 may be used as the transparent window 7 as it is. Alternatively, most of the face-to-face portion 6 may be a colored member, and the eye corresponding portion may be a transparent sheet.

  FIG. 4 shows another embodiment of the gas mask of the present invention. In this mask, a pair of see-through windows 7 and 7 made of a transparent material are formed in the eye-corresponding portion of the face-to-face portion 6. In the case of this gas mask, only the transparent windows 7 and 7 may be transparent and the other part may be colored.

  The mask body 1 is made of a flexible material that does not pass toxic gas or the like, and resin or rubber is used. For example, a resin sheet material or a rubber sheet material in a bag shape or a predetermined sheet shape is used. A thin resin sheet (vinyl sheet) is preferable for weight reduction, and may be polyethylene, nylon, polypropylene, or a laminate thereof. Moreover, it is preferable to use a heat resistant material.

The mask body 1 is in an inflated state, has a rigidity that can resist deformation caused by the intake pressure and the exhaust pressure when the mask body 1 is worn, and can secure the internal space 8 (breathing space 13).
Furthermore, it is good also as a strong thing by laminating | stacking glass or a carbon fiber layer on the resin sheet used as this material.

The air inlet 3 has the purifying agent 4 and may be provided in a place where the visual field is not obstructed. However, as shown in the drawing, the air inlet 3 is disposed in the mouth-nose corresponding portion of the bag-shaped mask body 1.
The cleaning agent 4 is preferably in the form of a sheet having a thickness of 1 to 5 mm. As shown in FIG. 2, a hole 10 is provided in the face-to-face portion 6, a sheet-like purification agent 4 is disposed so as to close the hole 10, and the purification agent 4 is wrapped by a protective sheet 11 having a ventilation hole (not shown). And the intake port 3 may be configured. Furthermore, a pocket portion (with a sealing function) may be formed on the face-to-face portion 6 with a protective sheet 11 so that the purifying agent 4 can be taken in and out, and only the purifying agent 4 may be disposable.

Further, the air inlet 3 may have a form other than the form provided with the sheet-like purifying agent 4, and as shown in FIG. 4, a directly-coupled small (thin) absorbent can 15 is fixed to a hole formed in the face-to-face portion 6. Thus, the intake port 3 may be configured.
The purifying agent 4 includes an absorbing (adsorbing) agent that absorbs and adsorbs gas, bacteria, and the like, a filtering agent, a detoxifying agent by a chemical reaction, and the like. Furthermore, it is good also as the purification | cleaning agent 4 (The sheet-like purification | cleaning agent 4 which laminated | stacked two or more) which has these several effect | actions.

The gas G sealed in the bag-shaped mask body 1 includes air, nitrogen gas, and the like, but is preferably exhaled for convenience.
The bag-like mask main body 1 is provided with an exhalation inhalation port 2 that allows the exhalation (breathing) to be inflated and inflates the mask main body 1. The exhalation inlet 2 has a check valve or a stopper so that the gas G (exhalation) sealed at one end does not escape from the mask body 1.
The exhalation inlet 2 is, for example, a part formed by using a part of the membrane (sheet) of the inflatable annular edge 5 as it is, or a stopper used in a general floating ring (not shown) An attached air supply / exhaust port can be used.

  The filling of the gas G into the bag-shaped mask main body 1 may be performed by a gas generating means prepared separately, although not shown. The gas generating means includes a compact cylinder filled with compressed gas in advance, a gas generating means by a chemical reaction, and the like, and known ones can be used. Then, the gas G may be filled by gas generating means provided in the mask main body 1 or connected to a mouth provided in the mask main body 1.

  Furthermore, it is good also as combined use with a gas generation | occurrence | production means and the expiration inhalation inlet 2. FIG. As a result, the gas generating means can quickly fill the mask body 1 with the gas G to obtain an expanded state. Furthermore, when the gas G is insufficient, the exhalation can be added from the exhalation inlet 2. The mask body 1 can be inflated to a predetermined shape.

Further, the mask body 1 is provided with a belt 12 for fixing (wearing) the mask body 1 to the head. The belt 12 is an elastic member, for example, a rubber band, and elastically presses the mask body 1 against the face to ensure adhesion over the entire circumference, and firmly fixes the mask body 1 to the head.
Further, the mask body 1 may be provided with an exhaust valve (not shown). Although (some) exhaust is possible from the intake port 3, the exhaust valve facilitates breathing and exhausts efficiently so that the inside of the gas mask is not clouded by moisture contained in the breath.

As shown in FIG. 5, when the gas mask of the present invention is not in use, the entire gas mask is folded and stored in a sealed bag 16, and the bag 16 is broken and taken out during use, and is folded and contracted. It is unfolded and deployed.
In the folded state, the mask main body 1 is formed of a thin sheet, so that the volume is small (thin folding is possible), and the mask body 1 can be stored in a pocket of clothes, and is more portable than being carried in a bag. Furthermore, it can be made ultra-light without feeling the weight burden. The bag 16 may be sealed with a vacuum.

  Furthermore, it can be manufactured at low cost, and the entire gas mask or the purifying agent 4 can be made into a disposable type. Maintenance (sanitization and disinfection) after use is not necessary, it only needs to be disposed of, and it is possible to prevent infection after use.

  The mask main body 1 has a balloon shape (air bag type), and has elasticity due to the internal gas G, so that it has good adhesion to the face, and the outside space (atmosphere side) and the inner space of the mask main body 1 ( A gas passage is not formed between the space 8) and the airtightness is high. In addition, it has a good fit when worn, has a low weight burden, and can be used widely from children to the elderly.

  As described above, according to the present invention, the bag-shaped mask body 1 is provided with the bag G mask body 1 including the bag-shaped mask body 1 covering at least the peripheral edge in an annular shape from the contracted state by sealing the gas G and covering the face. Since the intake port 3 having the purifying agent 4 is disposed, it can be folded and stored when not in use, is lightweight, and can be carried anywhere and anytime.

Therefore, by always wearing it and carrying it, it is possible to deal with unexpected situations that cannot be predicted when it will occur, and it can be inflated easily and quickly.
The mask body 1 is elastic due to the internal gas G, can be freely deformed, and can be brought into close contact with the face. Therefore, it is possible to maintain gas tightness and obtain a very safe gas mask. Moreover, since it swells and becomes a three-dimensional structure, it has a certain degree of rigidity and can be firmly attached.

Further, since the purifying agent 4 is in the form of a sheet, it is not bulky at the air inlet 3 even if it is folded, and the entire gas mask can be stored in the pocket and can always be worn and carried.
In addition, since the bag-like mask body 1 is provided with the breath-inlet 2 for inflating the bag-like mask body 1 so that breath can be infused, the mask body 1 can be easily and quickly inflated anytime and anywhere. And can be quickly installed in an emergency.

  The bag-shaped mask body 1 has an inflated annular edge 5 that swells and closely contacts the peripheral edge of the face and surrounds the face, and has a see-through window 7 and an intake port 3 that are connected to the inside of the inflated annular edge 5. Since the space portion 8 is formed between the face-to-face portion 6 and the face in the wearing state, there is no sense of incongruity and cramping in the wearing state, and the mask body 1 is respirated by breathing. It does not move and can help breathing.

In addition, when not in use, the whole is folded and stored in a sealed bag 16, and in use, the bag 16 is torn out and taken out and inflated and deployed from the collapsed state. (Purifier 4) is a new article. Moreover, the purifier 4 does not deteriorate in the storage state.
Therefore, although the amount of processing of the purifier 4 is limited, there is no need for judgment (inspection, recording) of the remaining amount that can be processed, the remaining amount is small, and it is not useful when a gas mask is necessary. Can be prevented. That is, a highly reliable gas mask can be obtained.

It is a front view which shows one Embodiment of the gas mask of this invention. It is a cross-sectional side view of FIG. FIG. 2 is a cross-sectional plan view of FIG. 1. It is a front view which shows other embodiment of the gas mask of this invention. It is explanatory drawing explaining use of a gas mask.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mask main body 2 Expiratory inflow port 3 Intake port 4 Purifier 5 Expansion annular edge 6 Face-to-face 7 Transparent window 8 Space G Gas

Claims (5)

  A bag-shaped mask body (1) that at least the peripheral edge swells in an annular shape from the contracted state by enclosing gas (G) and covers the face is provided, and a purifying agent ( A gas mask, characterized in that an intake port (3) having 4) is provided.   The gas mask according to claim 1, wherein the purification agent (4) is in the form of a sheet.   The gas mask according to claim 1 or 2, wherein the bag-like mask main body (1) is provided with an exhalation-breathing inlet (2) for inflating the bag-like mask main body (1) so that exhalation can be infused.   The bag-shaped mask body (1) is inflated and closely attached to the peripheral edge of the face so as to surround the face, and an inflated annular edge (5) connected to the inside of the inflated annular edge (5) and a transparent window (7 And a face-facing portion (6) having an air inlet (3), and a space portion (8) is formed between the face-facing portion (6) and the face when worn. The gas mask according to 2 or 3.   When not in use, the whole is folded and housed in a sealed bag (16), and in use, the bag (16) is torn out and taken out and expanded and mounted from a folded and contracted state. , 3 or 4 gas mask.

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