JP2004329882A - Portable protective mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the danger of oxygen shortage beforehand by supplying oxygen in a short time by manual operation while wearing a hood. <P>SOLUTION: This portable protective mask is constituted to cover the whole part above the neck such as the head and face and formed of a transparent material at least at the face part. The protective mask is provided with an outside air inflow preventing means, and an oxygen generating means with an oxygen generating substance as a requisite to supply oxygen into the hood. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a portable protection surface for preventing inhalation (breathing) of toxic gas for a short period of time, such as when toxic gas is generated, so that oxygen can be inhaled.

  The conventional gas-proof surface for the purpose of gas-proofing is often hard, heavy and large with a sealing mask that completely blocks the outside air, it is not easy to wear it, and only the adsorption filter device that can remove toxic gas is attached. .

  In addition, some professional gas-supply surfaces to which oxygen is supplied are used in such a way that oxygen flows into the inside of the mask through a hose to which a heavy oxygen container is separately connected, but oxygen generated by a chemical reaction is easily applied to the mask. No inexpensive, easy-to-carry, and easy-to-use general-purpose masks are known to be used by flowing in the interior of the device.

Although some masks for chemical oxygen generators are used for medical purposes in close contact with the mouth and nose, products have been developed for simple appliances that are directly combined with a single-use gas mask for emergency use. Is not known. Typical gas-proof surfaces use expensive flame-retardant or non-combustible raw materials.
6-21496

  Conventionally known devices cover the nose and mouth and supply oxygen to the nose and mouth. However, it is necessary to protect the head, to prevent toxic gas from adhering to the head, or to keep the inside of the hood. In order to prevent poison gas from flowing in, there is no consideration to raise the air pressure inside the hood, there is no problem that the face is covered for a short time as a simple mask and it is not a portable protective surface that can supply oxygen. there were.

  In addition, conventional gas masks can be worn only by persons with specialized knowledge or trained persons, but they are large and heavy, and they are relatively inexpensive to carry and store. There are problems that are difficult for ordinary people to obtain.

  The general gas-proof surface must be sealed with the outside air in order to completely shut off the outside air, so it is troublesome to wear it. The inside of the hood or the inside of the mask main body which covers the entire body and then plays a role of breathing oxygen and at the same time the pressure inside the hood increases, so that the air inside the hood leaks out through the wearing gap of the hood.

  That is, since the inside of the hood is maintained at a slightly higher pressure, the inflow of toxic external air can be automatically shut off.

  In addition, the hood is easy to wear and the operation is simple, so that men and women can easily wear it in emergency time without special training. In addition, although the structure is simple and ordinary materials are used, it is possible to obtain a product having a large nonflammability effect.

  Next, if oxygen is supplied for a short time (for example, 3 minutes to 10 minutes), the purpose can be sufficiently achieved even with a protective surface in which a mask body that covers the face and an oxygen generator are combined.

  Further, since the production price is extremely low and can be widely supplied, it can greatly contribute to ensuring the safety of life in the case of emergency of ordinary people.

  One of the present inventions combines an oxygen generating means with a hood that completely covers the head and face, and the other uses a mask body that covers the face and oxygen generating means, so that instantaneous harm can be easily and easily obtained. Thus, the conventional problems were solved by securing safety for a short time.

  That is, the present invention is a portable protective surface comprising an outside air inflow preventing means, and combining an oxygen generator having an oxygen generating means with a mask body covering the face, such as a head and a face. A head covering that can cover the entire upper part, including an outside air inflow prevention means, at least a facing portion made of a transparent material, and an oxygen generator having oxygen generating means for supplying oxygen into the head covering. It is a portable protective surface characterized by the following.

  According to another aspect of the present invention, the outside air inflow prevention means generates oxygen by means of oxygen generation means, and makes it possible to prevent the inflow of outside air by increasing the pressure in the hood higher than outside air. Is to separately house a plurality of substances capable of chemically generating oxygen, and to generate oxygen by contacting the plurality of substances, wherein the oxygen generating means is a liquid container and a liquid. And a contact means for bringing a plurality of substances capable of chemically generating oxygen into contact with an oxygen generating substance container that generates oxygen.

  Next, another invention relates to a method in which a mask body and an oxygen generator are detachably combined, and the oxygen generator is a means for accommodating a plurality of substances capable of chemically generating oxygen inside a case. And a means for supplying the generated oxygen to the inside of the mask body.

  Still another aspect of the present invention provides a contact device in which a liquid container and an oxygen generating substance container are communicated with each other, or a plurality of substance storing means are communicated with each other. It is constituted by a pipe, the facing part of the head width is constituted by a transparent material, and the accommodating pipe is communicated.

  In the above, the generated oxygen will flow into the inside of the hood that protects the head, and it will be possible to breathe even in a bag almost isolated from the outside.

  The hood that covers the entire head does not need to be sealed unlike an ordinary gas-proof surface. In other words, the pressure inside the hood rises due to the generated oxygen, and even if toxic gas is generated outside, the air inside the hood can rise outside the atmosphere and the air inside the hood can flow out. It is difficult to enter inside.

  Therefore, only the action of loosening the contact portion on the neck part of the body and putting on the head hood is unnecessary, and there is no need to use a special nerve for wearing.

  Also, if the liquid substance A is dispersed to disperse the weight of the hood in order to make it portable, the area that wraps and covers most of the hood is stored in a thin tube pattern in a thin tube pattern. The entire rest of the hood becomes a jacket for the aqueous solution.

  Aqueous jackets made of ordinary flammable vinyl have the same effect as those made of strong non-combustible materials with a non-flammable liquid inside.

  For cheap production and widespread replenishment, it is sufficient to have a jacket of a thin aqueous solution that can hold liquid in a space of ordinary cheap vinyl material.

  The substance B is a liquid or a powder, and is easily mixed with the liquid substance A to generate oxygen immediately. The substance B is connected to a place where the substance B is located by a thin pipe. Therefore, if the operation is performed so as not to flow before the operation, the reaction starts if the substance A flows and is easily mixed with the substance B.

  In order to easily mix the oxygen generating substances A and B, both ends of the vinyl material hose on both sides containing a lot of the substance A are adhered with thin and easily breakable aluminum foil etc. and fixed in the place where the substance B is located So that it can be easily broken by pulling it with a string or the like.

  In order to improve the flow of the substance A, a simple one-way discharge valve through which air can flow can be installed inside the hood. Also, a one-way discharge valve can be provided outside the hood so that the pressure of the mixed air inside the hood consisting of the generated oxygen and the breathed air does not rise more than necessary.

  The oxygen-generating substances A and B are selected from among many cheap and safe substances which are chemically reacted to generate oxygen as soon as they are mixed, since they are known.

  It is suitable as a raw material because it is easy to mix liquid and liquid, and liquid and solid.However, if it reacts, use a catalyst material for controlling the reaction rate so that the reaction rate is high and oxygen is generated, or make the liquid flow. There must be.

The substance A is, for example, an aqueous solution of hydrogen peroxide (H ₂ O ₂ + H ₂ O), and the substance B is, for example, sodium hypochlorite (NaClO).

The substance A may be the water (H ₂ O), and the substance B may be a mixture of sodium carbonate (Na ₂ CO ₃ ) + hydrogen peroxide (H ₂ O ₂ ) + catalyst (MnO ₂ ). That is, for the substance A and the substance B, the use time and the required amount of generated oxygen can be calculated to determine an appropriate substance, amount, concentration, use of a catalyst, and the like.

  Substance A does not become a liquid due to the nonflammability effect and chemical reaction, whereas substance B seems to be a powder because of its fast reaction speed and lightness. For example, it can be used as a water-permeable paper pack.

  The generation time of oxygen required in the present invention is about 5 to 10 minutes, and the amount of oxygen is about 5 to 10 liters.

  The substance A may be water or an aqueous solution of about 300 g to 400 g, the substance B may be about 50 g to 100 g, and the weight of the entire head width may be about 500 g.

  The material of the protective hood is high-frequency bonding of two soft vinyl sheets, and the straight crimping part and the straight crimping part are made fine so that the cross section becomes like a thin tube if water is poured. Water or an aqueous solution may be dispersed as thinly and flatly as possible in the space to be formed, so that the pattern becomes like an air mattress having small irregularities.

  When the head width is cut in the vertical direction and opened, for example, if the width is 50 cm, the length is 20 cm, and the thickness is 0.5 cm, about 500 ml of water will enter.

  If the space between the lines for bonding the soft vinyl sheet and the soft vinyl sheet is about 0.7 cm to 0.8 cm, a tubular cross-sectional structure having a diameter of about 0.5 cm is obtained. If a substance having a high oxygen generation efficiency is used, a device that can be used for a relatively long time can be produced.

  The hood should be slightly loose so that it cannot be sealed when worn, so make the hood large enough to cover the entire head, and attach a loose rubber string so that the neck of the hood is easy to wear Good.

  When wearing the hood, all or only the facing part of the eyes and nose must be made of a transparent material so that the front can be seen clearly.

  The hood becomes smaller when folded, and is made of a soft material that can be easily opened when needed. To prevent tearing, soft vinyl or other synthetic resin having appropriate strength and thickness can be used.

  Even if expensive flammable and non-flammable fibers or special materials are not used as the material of the hood, the effect of the jacket of the aqueous solution becomes sufficient non-flammable material and the production price can be significantly reduced. However, this does not preclude the use of non-combustible or flame-retardant materials.

  Since the present invention does not use any special materials or substances, the principle is simple, mass production is possible, and there is an advantage that it can be mass-produced at low cost industrially and can be widely supplied. It can be made small enough to fit into a handbag when folded, so it is easy to carry and store, or it can be prepared in large quantities as an emergency device.

  In the headband of the present invention, a part of the constituent material is constituted by a thin tube, and the substance A (water or aqueous solution) is accommodated therein. However, there is a structure other than the above constitution. The point is that the device is designed to generate oxygen in the hood and protect the head.

  Unlike ordinary gas-proof surfaces, the size is free size and can be worn in common regardless of age and gender.

  The material used is safe, there is no fear of deterioration, it can be stored for a long time, the wearing method and operating method are extremely simple, and it is nonflammable and can play an optimal role as an emergency device. Closed spaces where many people gather, such as theaters, hotels, inns, high-rise buildings, underground spaces, subways, underground facilities, taverns, etc., as well as ordinary households, can be prepared in large quantities as emergency equipment and folded. Because it is so small, you can carry it, so you can make an emergency escape at the time of fear of unexpected accident, fire, explosion, chemical accident, and secure especially important initial time.

  It is said that the current buildings use a lot of artificial materials, so that the burning of the artificial materials at the time of a fire generates toxic gas, and the victim is immersed in the toxic gas rather than the fire and cannot move. Even if it is not an artificial material, the generation of carbon monoxide often causes a loss of freedom, but the present invention can minimize such tragedies as much as possible.

  Although the above-mentioned invention mainly considers two substances as the oxygen generating means, it can be applied to one substance or a substance which can easily generate oxygen such as a small oxygen cylinder. The above does not necessarily have to be attached to the hood, but may be set with the hood. For example, there is a method in which the oxygen generating substance and the liquid are separately packaged and put in when the headband is used.

  According to the present invention, oxygen is generated by contacting two substances with a simple operation, so that a person wearing a hood or wearing a mask body can evacuate to a safe place without inhaling toxic gas. effective.

  Further, if a part of the hood is used for a container for storing water or the like, there is no possibility that the hood will burn or overheat in the event of a fire or the like, and the effect similar to that of a non-combustible material is obtained.

  ADVANTAGE OF THE INVENTION According to this invention, since it can be easily attached with a simple structure, there is an effect that oxygen can be reliably supplied and a person can be rescued from a dangerous area.

  Further, since the internal pressure of the head width is necessarily higher than the external pressure, even if the neck is loosened, the internal / external pressure difference is maintained, and the effect of preventing the inflow of external air can be prevented. In the present invention, by detachably combining the oxygen generator, there is an effect that the head width or the mask body can be reused.

  The present invention relates to a hood (for example, the inner volume is set to be twice or more the human head volume) which can cover the entire upper part of the human body such as the head and the face above the neck, and at least the visibility of the face The portion uses a transparent synthetic resin plate (for example, polycarbonate, acrylic resin, or the like).

  Further, the head width is, for example, a double sheet made of a soft vinyl, which is heat-sealed at a small interval to form a tube, which contains water or an aqueous solution, communicates partially, and has a stopper at a single outlet. If so, water can be allowed to enter and exit from the outlet.

  Oxygen can be generated by attaching a container of an oxygen generating substance to the upper or lower part of the outer side of the hood and bringing the oxygen generating substance in the container into contact with water. In the above, since the hood is loosely attached to the neck by a string or the like, the internal pressure of the hood is set to be higher than the external pressure so that outside air is not sucked into the hood. If oxygen is generated in the hood as described above, a pressure difference between the inside and outside is automatically generated, and there is no possibility that outside air flows into the hood.

  The purpose of the present invention is to eliminate as much as possible the risk of loss of body freedom due to oxygen deficiency or inhalation of toxic gas in an emergency (for example, in the event of a fire). Five minutes to ten minutes is sufficient, and even if the oxygen concentration becomes high, there is no possibility of causing trouble due to a short time.

  Further, in addition to the above, the opening side of the cylindrical case is inserted and fitted to the side opposite to the opening on the outer surface of the mask body, and two partition plates are provided in the case, and the liquid chamber and the liquid chamber are provided. It will be an individual room so that its communication hole can be opened. An operation plug with an air supply pipe is fitted into one side wall of the case, and the liquid and the solid are brought into contact with each other by press-fitting the operation plug so that the generated oxygen is supplied into the mask body. Thus, the protection surface of the present invention was configured (FIG. 4).

An embodiment of the present invention will be described with reference to the drawings. Two soft vinyl sheets 1a and 1b each having a width of 50 cm and a length of 20 cm are stacked and heat-sealed at intervals of 0.7 cm to 0.8 cm to form tubular portions 2 and 2 having a diameter of about 0.5 cm. The head 3a and the peripheral side portion 3b are connected to each other with the seat having the helmet 3 to constitute the hood 3. A transparent plate 4 made of polycarbonate was placed on one side opening of the hood 3, and the upper end of the cylindrical neck 3c was connected to the lower end of the peripheral side 3b to complete the hood 5 of the present invention. In the figure, reference numeral 6 denotes a suspension string attached to the head 3a, and reference numeral 9 denotes a fastening string inserted into the neck. A container 8 containing an oxygen-generating substance 18 (for example, sodium carbonate Na ₂ CO ₃ + hydrogen peroxide H ₂ O ₂ ) is fixed to the outside of the lower part of the head width 5.

  In the above embodiment, when the cord 7 of the container 8 is pulled in the direction of the arrow 10, the central portion 14a of the water pipe 14 in the container 8 is broken, and water is sprayed into the container. And the generated oxygen passes through the pipe 17 and is released into the hood 5 as shown by arrows 11, 12, and 13 (FIGS. 1, 2, and 3).

  In the above, even if the cord 9 is loosely tightened and there is a slight gap between the neck 9 and the neck, there is no danger of inhaling external air into the head width 5 because the internal pressure in the head width 5 is high.

  In the above embodiment, since the tubular portions 2 and 2 communicate with each other at the upper side or the lower side, when the container 8 is at a low level as shown in FIG. 1, the content liquid is automatically supplied.

  The tubular portions 2, 2 in the above embodiment are merely examples, and may be provided on a part of the peripheral side wall or the top wall. Alternatively, a separate liquid container can be attached.

  In the embodiment shown in FIG. 2, the container 8 is attached to the upper part of the head width 5, and there is no water pipe in the head 3a, but the operation and effect are exactly the same as those in FIG. Then, water is supplied to the container from the peripheral side wall via the connecting pipe 14 through the water pipe of the peripheral side portion 3b. Therefore, oxygen is generated, and oxygen is supplied to the person who has suffered the hood 5 as described above. In the figure, 15 is an oxygen supply pipe, 16 is an auxiliary valve for improving the flow of a substance, and 19 is a pressure regulating valve.

  The tubular portions 2, 2 in the above embodiment are communicated on one side, and an arbitrary amount of liquid can be sent to the water pipe by holding it with one hand.

  Referring to FIG. 4, another embodiment of the present invention will be described. The opening side of the cylindrical case 21 is inserted and fitted to the side opposite to the opening on the outer surface of the mask body 20.

  In the cylindrical case 21, partition plates 23 and 24 are provided in parallel with the bottom plate 22 so as to be divided into a liquid chamber 25 and a solid chamber 26, and a communication hole 27 is provided in the partition plate 23. It is closed by a valve 28 (pressed by a spring 29). An operation plug 31 with an air supply pipe 30 is fitted into the hole 32 in the side wall of the case 21, and a through hole 33 communicating with the solid chamber 26 of the case 21 is provided in the side wall of the operation plug 31. The other end of the air supply pipe 30 opens into the mask. In the figure, reference numeral 34 denotes a mask band, 35 denotes an exhaust pipe (with a check valve), and 36 denotes a safety lock.

  In the above embodiment, when the knob 36a of the safety lock 36 is pulled off as shown by an arrow 37 and the operation plug 31 is pushed downward as shown by an arrow 38, the string 39 is pulled as shown by an arrow 94, so that the spring 29 comes off and valve 28 opens. Then, the liquid in the liquid chamber 25 flows into the solid chamber 26 as shown by an arrow 40 and comes into contact with the solid to generate oxygen. Accordingly, the generated oxygen passes through the central hole 31a of the operation plug 31 through the through hole 33 of the operation plug 31 as shown by an arrow 95, passes through the air supply pipe 30 as shown by arrows 41 and 42, and passes through the mask body 20. Enters and is inhaled by the wearer.

  In the above embodiment, since the case 21 is fitted to the mask main body 20, if it is removed and replaced with a new one, it can be reused. In the drawing, 43 and 44 are stoppers provided in the holes of the partition plate, and are opened when a liquid or solid is stored. There is no accidental oxygen generation while the safety lock 36 is engaged.

  Referring to FIGS. 5 and 6, another embodiment of the present invention will be described. The bottom wall 46a of the case 46 is fitted to one side of the mask body 45, and the cover plate 47 is attached to the mouth of the case 46 with a screw cover 47a. Fix it. An annular powder chamber 50 and an operating chamber 51 (containing a catalyst) are provided by protruding annular ridges 48 and 49 concentrically on the back surface of the lid plate 47, and a lid plate 52 is inserted into the powder chamber 50. The powder chamber 50 is hermetically covered to seal the powder chamber 50. An operation knob 53 is slidably installed through the cover plate 47, and a spring 54 is interposed between a concave portion 53 a of the distal end of the operation knob 53 and a concave portion 52 a of the cover plate 52. The operation plug 55 is removably fitted into the hole 96 in the side wall of the case 46. In the figure, 100 is a spacer.

  To generate oxygen in the above-described embodiment, when the spacer 97 is removed and the operation knob 53 is pushed in as shown by an arrow 56, the lid plate 52 comes off as shown by an arrow 57. The body flows into the liquid chamber 58 and undergoes a chemical reaction to produce oxygen.

  Next, when the operation plug 55 is pushed in as indicated by an arrow 59 and the side wall hole 55a of the operation plug 55 is communicated with the liquid chamber 58 (shown by a chain line in FIG. 5), oxygen generated in the liquid chamber 58 is indicated by an arrow 60. , 61, through the central hole 55b of the operation plug 55 and the pipe 62, and is discharged into the mask 45 as indicated by an arrow 98. In the figure, 63 is an exhaust pipe (with a check valve), and 64 is a wearing belt. The spacer 100 locks the operation plug 55.

  Referring to FIG. 7, another embodiment of the present invention will be described. One end of a cylindrical case 66 is removably inserted into a mask body 65, and a partition lid 68 is fitted to the case 66. A lid plate 67 is mounted on the other end, and a liquid chamber 71 and a powder chamber 72 are provided on the left and right sides by a partition wall 69 and a catalyst chamber 70 at the center. In the figure, 101 is a rubber packing, and 102 is a band fitting.

  The catalyst chamber 70 is provided with a valve 73 that can open and close a communication path between the liquid chamber 71 and the powder chamber 72. In the figure, reference numeral 79 denotes an exhaust valve (with a check valve).

  A communication hole 74 is provided in the upper portion of the partition lid 68, and an opening / closing valve 75 is set in the communication hole 74. The opening / closing valve 75 is locked via an operation knob 76 provided on the cylindrical case 66 and a spring 77. .

  In the above embodiment, when the valve 73 is opened to guide the liquid in the liquid chamber 71 to the powder chamber 72 through the catalyst chamber 70 as indicated by an arrow 78, oxygen is generated. Then, when the operation knob 76 is rotated as indicated by an arrow 99, the valve 75 is opened, so that oxygen generated in the powder chamber 72 enters the mask body 65 as indicated by an arrow 78.

  Referring to FIG. 8, another embodiment of the present invention will be described. A cylindrical case 81 is fitted to one side of a mask body 80, and a base plate 82 having a communication hole 82 a is fixed in the cylindrical case 81. The powder bag 83 is placed on the plate 82, and the liquid powder bag 84 is placed on the inner wall of the case below the base plate 82.

  An operating rod 85 is attached to the upper wall of the case 81 so as to be able to move up and down, a gate needle 86 is set at a lower part of the operating rod 85, and a spring 87 is inserted between the operating rod 85 and the outer wall of the case 81. Further, cover plates 88 and 89 are fitted on the left and right sides of the case 81, a vent hole 90 is provided in the cover plate 89, and a seal 91 is attached to the vent hole 90.

  In the above-described embodiment, when the operating rod 85 is pressed downward as indicated by an arrow 92, the gate needle 86 descends to open the solid bag 83 and the liquid bag 84, so that the solid and the liquid (powder) come into contact with each other. To generate oxygen. Then, if the seal 91 is peeled off, the generated oxygen is supplied into the mask 80 as shown by an arrow 93.

  In the above embodiment, since the operating rod 85 is constantly pushed up by the spring 87, there is no possibility that the portal needle 86 pierces the solid bag 83 and the liquid bag 84 unexpectedly.

FIG. 2 is a front view of the embodiment of the present invention. The perspective view of another Example similarly. (A) An enlarged perspective view in which a part of the oxygen generating agent container is cut off, and (b) a partial cross-sectional enlarged view of the head width. The perspective view which omitted a part of other examples similarly. Sectional drawing of another Example similarly. FIG. FIG. 6 is a cross-sectional view of the same embodiment, in which some of the embodiments are omitted. FIG. 6 is a cross-sectional view of the same embodiment, in which some of the embodiments are omitted.

Explanation of reference numerals

1a, 1b Soft vinyl sheet 2 Tubular part 3 Hood 4 Transparent plate 5 Hood 7 String 8 Container 9 String 20, 45, 65, 80 Mask body 21, 46, 66, 81 Case

Claims (9)

  A portable protective surface, comprising: a mask body having external air inflow prevention means and covering a face, and an oxygen generator having oxygen generation means combined with the mask body.   A hood capable of covering the entire upper portion of the head and the face, such as the face, including an outside air inflow prevention means, and at least the facing portion is made of a transparent material, and an oxygen generation means for supplying oxygen into the hood. A portable protective surface comprising an oxygen generator having:   3. The portable device according to claim 1, wherein the outside air inflow prevention means generates oxygen by means of oxygen generation means, and makes the air pressure in the hood higher than the outside air to prevent the inflow of the outside air. For protective surface.   3. The portable device according to claim 1, wherein the oxygen generating means separately contains a plurality of substances capable of chemically generating oxygen, and generates oxygen by contacting the plurality of substances. Protective surface.   The oxygen generating means is a liquid container, an oxygen generating substance container which combines with a liquid to generate oxygen, and a contacting means for bringing a plurality of substances capable of chemically generating oxygen into contact with each other. Item 3. A portable protective surface according to Item 1 or 2.   3. The portable protective surface according to claim 1, wherein the mask body and the oxygen generator are detachably combined.   The oxygen generator includes a plurality of substances capable of chemically generating oxygen inside the case, a means for contacting the substances, and a means for supplying the generated oxygen into the mask body. The portable protective surface according to claim 1 or 2, wherein:   6. The portable protective surface according to claim 5, wherein the contact means communicates the liquid container with the oxygen-generating substance container or communicates each of the plurality of substance storing means.   3. The portable protective surface according to claim 2, wherein a part of the hood is formed of a liquid storage pipe, and a facing portion of the hood is formed of a transparent material, and the storage pipe is communicated.

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