JP2013063266A - Mask, filter bag for mask, ventilation filtering method, and dust-proof mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mask in which breath can be eased, mounting feeling is based on an ordinary mask, that can be endured to the use in everyday life, and in which the antivirus, anti-pollen allergy and chemical substance-resistant effects can be obtained.SOLUTION: The mask includes: a mask body 2 with which lips of a mouth 51 and nostrils 52 of a wearer 5 are at least covered when being mounted; a pair of support strings 3 that extend from both sides section of the mask body 2 and are hung at wearer's both ears; and a filter bag 4 that is maintained in the mask body 2 and is adhered to wearer's lips 51 and nostril 52, wherein a lot of grainy (spherical) porous materials 41 are filled in the filter bag 4. An expanded polystyrene bead can be used as the grainy porous materials 41.

Description

  The present invention covers the nose and mouth at the time of wearing to prevent the entry of fine foreign matter in the air such as dust, viruses, pollen, etc., prevents the spread of splashes from the oral cavity and nasal cavity of patients, etc. The present invention relates to a mask, a filter bag for a mask, a ventilation filtering method, and a dust mask for capturing harmful chemical substances, radioactive substances, and the like caused by air and preventing inhalation thereof.

  In the general living environment, atmospheric substances have many biological, chemical and physical effects on the human body, and when they affect the human body, they may develop as diseases. . As described above, the cause of adverse effects of substances in the atmosphere includes air pollution and air infection that are frequently observed on a daily basis. Measures against this air pollution and air infection include measures against the sources of contamination and infection and prevention against those that have occurred.

  Among these measures, one of the measures that can be implemented by individuals is prevention by wearing a mask. Even in the present situation, in addition to the form, structure, and material of the mask itself, various devices have been devised depending on the purpose of use, such as a method of adsorbing what is supposed to be a harmful substance in the air, provided in the mask. . In other words, it is difficult to protect chemical substances, biological bacteria, and viruses with a mask that is simply sewed on a non-woven fabric. As described above, the form and structure are devised and are not directly sucked into the respiratory tract or lungs. Such measures are necessary. As one of countermeasures, a layered structure of a mask is generally used, and there is a contrivance such as using a liquid-absorbed liquid attached to the mask (for example, Patent Document 1).

JP 2011-45661 A

  However, in the case of a hygroscopic filter having a layered structure, if the effect as a filter is to be increased, the layered structure must be made thicker. There is a difficulty that it is painful. In order to solve this problem, there has been an attempt to use a moisturized filter in the past, but this is provided with a vent or a slit in a part so as to improve air permeability. However, it is believed that this allows air to pass through vents that do not pass through and that there is little amount to pass through the wet filter.

  In addition, the mask that can be used without disturbing breathing at present is a form similar to a gas mask made according to the purpose of work from its form, so that the filter does not touch the lip of the wearer, There is a type in which a space for ventilation is secured between the wearer's lips and the filter. These have problems that the appearance becomes large when used by ordinary people, the fashionability is reduced, the structure is complicated and the cost is high, and the practicality is poor.

  Therefore, the present invention has been made in view of the above points, and it is easy to breathe, has a feeling of wearing according to an ordinary mask, and has the effects of antiviral, antihay fever and antichemical substances that can withstand use in daily life. It is an object of the present invention to provide a mask, a filter bag for a mask, a ventilation filtering method, and a dust mask.

  In order to solve the above-described problems, the present invention includes a pair of support strings that are hung on the wearer's ears during wearing, and a filter bag that is supported by the support string and closely contacts the wearer's lips. The filter bag is filled with a large number of granular porous substances. The filter bag may be supported so that a certain space is maintained between the lip of the wearer and the filter bag, and the airtightness of the space may be maintained.

  As described above, according to the present invention, the filter bag filled with the granular (spherical or small spherical) porous substance is brought into close contact with the lip of the wearer or is held in the vicinity of the lip while ensuring airtightness. In addition, it is possible to prevent outside air from flowing into the mask from the periphery of the mask, and dust and viruses are not directly sucked into the airways and lungs.

  At this time, since the porous material is granular (spherical), the surface in contact with the air passing therethrough is enlarged by making the porous material spherical. At the same time, the contact between the spheres is point-like, so that a sufficient ventilation path can be secured. In addition, by making the spherical material in the filter bag 3-4 layers or more when in use, the filter effect and a sufficient amount of air will pass through the gap in the bag to form an inspiratory / expiratory path. A sufficient amount of passage can be secured. Therefore, it can be avoided that the wearer suffers from breathing. In the present invention, the term “porous” includes a surface roughened by unevenness formed on the surface of the material, and does not necessarily need to be a hole that extends to the inside of the material or is superficial. .

  Furthermore, since the filter bag is in close contact with the wearer's mouth or is held in the vicinity of the mouth while ensuring airtightness, the filter bag is also formed on the surface of the spherical porous material by water vapor contained in the wearer's own breath. Moisture due to exhalation is adsorbed by a large number of micropores, and moisture can be secured on the surface of the sphere formed as a respiratory path formed in the mask. By the way, exhaled breath contains about 300 ml of water per day (as 12 breaths per minute).

  In addition, since moisture is retained on the surface of the sphere, dust, pollen, bacteria, molds, viruses, etc. in the air are trapped on the porous material surface when the intake air passes through the intake path, High filter effect is demonstrated. As will be described later, in order to increase the moisture retention effect by breathing, the sphere surface may be coated with a moisturizing agent, a water retention agent, a chemical substance according to the purpose, or applied to the sphere surface due to generation of static electricity. It is also possible to increase the wearing power.

  This prevents, for example, allergens that cause hay fever, air infections such as influenza viruses and bacteria, can effectively remove chemicals such as asbestos and formaldehyde, and responds to bad odors. Is also possible. By imparting water retention to the porous material, it is possible to prevent dryness of the oral mucosa, nasal mucosa, pharyngeal mucosa, airway mucosa and the like, which far exceeds the conventional general mask effect.

  In addition, since the filter bag filled with a porous material is supported by a support string body, the appearance and structure can be simplified, fashionability can be improved, and the manufacturing cost can be reduced. It can be kept low and is highly practical. It can be used with a mask having the form of a three-dimensional mask currently used.

  Furthermore, by producing a combination of a mask and a filter bag, a mask dedicated to a filter bag is provided as a method that can effectively exhibit the mask function and provide a sense of stability even when worn. The method is to make a three-dimensional mask with a sponge-like material on the four sides of the mask that touches the lips, nose, cheeks, and buttocks, and put the filter bag within the mask surface and the four sides of the mask. It is possible to reliably obtain the filter effect of the intake air and the layer of the filter bag, and to effectively function the filter effect.

  In addition, in order to enhance the wetting effect of the filter bag, a liquid according to the purpose is loaded by attaching a dropper-like material made of synthetic resin or the like that holds the liquid on the inner surface of the mask and can be injected by pressure. It becomes possible to apply a coating on the surface of the sphere in the bag. Here, the liquid to be loaded may be water, a chemical solution, a fragrance or the like. In addition, when the filter bag is used, a wet effect, a medicinal effect, and the like can be obtained by spraying an appropriate amount of water or a chemical solution directly onto the filter bag by spraying or the like, and a sufficient filter effect can be obtained. When the filter bag is supported so that a certain space is maintained between the wearer's lip and the filter bag, and the airtightness of the space is maintained, dust, viruses, etc. After adsorbing, the adsorbed dust and virus do not come into contact with the lips, and safety can be improved.

  In the above invention, it is formed on a contact surface that is in close contact with the lip of the filter bag, and forms a horizontal linear nasal hardened portion corresponding to the position of the wearer's nose, or is in close contact with the lip of the filter bag. It is preferable to further have a pair of nose lip groove hardening portions corresponding to positions on both sides of the lip of the wearer.

  Normally, even if the spherical porous material is layered due to the pressure when the filter bag is worn, the nostril or lip side surface of the filter bag will be evacuated, resulting in insufficient layer formation, and obtaining a filter effect. It is easy to become incapable. In order to solve this problem, layer formation (3-4 layers or more) with a sufficient amount of spherical porous material can be performed on the nostril and lip. As a method, it is necessary that the filter bag is closely attached to the nostril portion and the lip portion. In order to obtain a more effective nostril and lip contact surface, convex (mountain) and fold mountain (mountain folds) are attached at three locations. For one thing, a fold mountain (mountain fold) that reaches the base of the nose wing horizontally is formed so as to be in contact with the nose lip corner. Also, make folds along the nasal lip on both sides. By the formed folds, the surface corresponding to the nostril portion and the surface corresponding to the lip portion are formed separately, and can be brought into close contact with the nostril portion and the lip portion.

  By creating pleats (mountain folds) in this way, a sufficient amount of porous material for providing a ventilation filter effect can be collected and held in the nostril and lip with an appropriate thickness. As a result, when the intake air passes through the nostril or cleft, which is the intake passage, dust and viruses in the air can be surely captured on the porous material surface, and a high filter effect can be exhibited.

  In addition, when using for a ready-made mask, the form of the filter bag can be used even when a porous material is loaded into a simple bag-like bag having no folds (mountain folds). By increasing the amount of the porous substance in the filter bag, the filter effect can be sufficiently obtained although it is somewhat bulky.

  In the above invention, the granular (spherical) porous material is preferably expanded polystyrene beads. In this case, the filter bag can be manufactured with a lighter and less expensive material, and the weight and cost of the entire mask can be further promoted.

  In addition, it is also possible to form only a nose hardening part, In this case, shape holding members, such as a plastics and metal member which have plasticity, can be used, for example. In this case, by providing a shape maintaining member as a nose hardened portion, a bulge (mountain) raised so as to be in contact with the nose is formed, and the shape is maintained. Thereby, when wearing a mask with a simple configuration, a constant space (bulge) can be formed at a location corresponding to the position under the nose, and in this space, the porous material is collected and the nose ( The porous substance is held at an appropriate thickness at the nostril position and the lip position. As a result, when the intake air passes through the intake passage, dust and viruses in the air are surely captured on the porous material surface, and a high filter effect is exhibited.

  In the above invention, the porous material is preferably impregnated or coated with a liquid. This liquid or solution is a substance having moisturizing, water-holding power, and viscosity. For example, additives used for water retention and viscosity improvement of foods, and additives used to maintain moisturizing and wettability of cosmetics etc. The product can be contained and used as a coating agent. In addition, liquids and solutions such as sterilizing / antibacterial agents, fragrances and the like can be added and used. In these cases, the mask can be multi-functional and the added value of the mask can be increased.

  In the above invention, the filter bag is preferably detachably fixed to the mask body. In this case, it is economical because only the filter bag can be replaced, and the filter bag can be used in combination with an existing mask, so that the application range of the present invention can be expanded.

  As described above, according to the invention, it is possible to provide a mask that can be easily breathed, has a feeling of wearing, and can be used in daily life, and can have antiviral, antihayfever and antichemical effects. it can. In addition, the present invention can be applied to a dustproof and dustproof mask for the purpose of dustproofing and prevention of chemical substance suction.

It is explanatory drawing which shows the whole structure of the mask which concerns on 1st Embodiment, and shows the state with which the wearer was mounted | worn from a side. It is explanatory drawing which shows the whole structure of the mask which concerns on 1st Embodiment, and shows the state with which the wearer was mounted | worn from the front and upper direction. It is sectional drawing of the filter bag which concerns on 1st Embodiment. It is explanatory drawing which shows the example of mounting | wearing of the mask which concerns on 1st Embodiment. (A) is a top view which shows the nasal cavity hardening part formed in the filter bag which concerns on 1st Embodiment, and a pair of nasal lip groove hardening part, The figure (b) is a side view, The figure (C) is a perspective view. It is explanatory drawing which shows the state with which the mask which concerns on 1st Embodiment was mounted | worn with the wearer from the side. It is a figure which shows the place where the pocket of the water | moisture content holding body (supplement body) fixed to the mask main body which concerns on a 1st modification, and the water | moisture content holding body (supply body) were mounted | worn. It is a perspective view which shows the filter bag which concerns on a 1st modification, and a moisture holding body. It is sectional drawing which shows the connection part of the filter bag which concerns on a 1st modification, and a water | moisture content holding body (moisture supply body). It is explanatory drawing which shows the state with which the mask which concerns on the 1st modification was mounted | worn with the wearer from the side. (A) And (b) is a perspective view which shows the filter bag which concerns on 2nd Embodiment. (A) And (b) is a perspective view which shows the mask main body which concerns on 2nd Embodiment. (A) And (b) is a perspective view which shows operation | movement with which the filter bag which concerns on 2nd Embodiment is mounted | worn with a mask main body. It is explanatory drawing which shows the state with which the mask which concerns on 2nd Embodiment was mounted | worn with the wearer from the side. It is a perspective view which shows the state by which the moisture holding body was accommodated in the accommodating part which concerns on a 2nd modification. It is a perspective view which shows the structure of the dust mask which concerns on 3rd Embodiment. (A)-(d) is explanatory drawing which shows each structure of the dust mask which concerns on 3rd Embodiment. It is explanatory drawing which shows the rotation state of the main body frame which concerns on 3rd Embodiment, an outer side frame, and an inner side frame. It is explanatory drawing which shows the accommodating part provided in the mask main body which concerns on 3rd Embodiment. It is explanatory drawing which shows the state by which the filter bag was accommodated in the mask main body which concerns on 3rd Embodiment. It is a perspective view which shows the whole structure of the mask which concerns on a 3rd modification. (A) is explanatory drawing which shows the state which formed the pocket in the mask main body which concerns on a 3rd modification from a front, (b) is explanatory drawing which shows the state which accommodated the filter bag inside the pocket from the front It is. (A) is a perspective view which shows the mountain fold shape formed in the pocket which concerns on a 3rd modification, (b) is explanatory drawing which shows the state with which the mask was mounted | worn by the wearer from the side. It is a perspective view which shows the side part opening of the mask which concerns on a 3rd modification. (A) And (b) is a perspective view which shows the whole structure of the dust mask which concerns on a 4th modification. It is explanatory drawing which shows the operation | movement which accommodates the filter bag of the dust mask which concerns on a 4th modification. It is explanatory drawing which shows the state with which the dust mask which concerns on the 4th modification was mounted | worn with the wearer from the side. It is a perspective view which shows the whole structure of the dust mask which concerns on a 4th modification. In the figure, a part of the net is omitted (transmitted). It is a top view which shows the use condition of the dust mask which concerns on a 4th modification. In the figure, a part of the net is omitted (transmitted). It is a top view which shows the filter bag which concerns on a 5th modification. It is a top view which shows the use condition of the filter bag which concerns on a 5th modification.

(Configuration of mask and filter bag for mask)
Hereinafter, various embodiments representing the present invention will be described with reference to the drawings. 1 and 2 are explanatory views showing a mask 1 according to this embodiment. Specifically, as shown in FIG. 1A or 2, the mask 1 extends from the mask body 2 that covers at least the lip 51 and the nostril 52 of the wearer 5 and both sides of the mask body 2 when worn. A pair of support strings 3 that are hung on both ears of the wearer 5 and a filter bag 4 that is supported by the mask body 2 and is in close contact with the periphery of the lip 51 and nostril 52 of the wearer 5 are provided. And by mounting | wearing with this mask 1, the ventilation | gas_flow filtering method of this invention can be implemented. As the mask 1, existing products such as currently used gauze masks, non-woven masks, and plastic dust masks can be used as they are. However, since the filter bag is attached, the thickness is increased. Suitable for use.

  The mask body 2 is formed of a flexible member (material) such as cloth, paper, synthetic fiber, or plastic having sufficient air permeability, and has an area enough to cover the lip 51 and nostril 52 of the wearer 5. Yes. Specifically, in the present embodiment, a material such as gauze or nonwoven fabric having high filter performance is used. The support string body 3 is an elastic rubber string or the like, and is formed in an annular shape so as to be sewn to the mask body 2 and to be hung on both ears of the wearer 5. Here, the case where the mask body 2 is supported by the support string 3 and the filter bag 4 is supported via the mask body 2 will be described as an example, but the present invention is not limited to this. As long as the filter bag 4 can be brought into close contact with the lip of the wearer 5, only the support string 3 may be used, and the mask body 2 may be further simplified.

  The filter bag 4 is a mask filter bag that is in close contact with the periphery of the lip 51 and the nostril 52 of the wearer 5. The filter bag 4 is strong enough to accumulate the material having a particle size filled therein into a certain shape, and the wearer 5. Flexible enough to match the shape of the mouth and nose. Further, the filter bag 4 has a structure that can sufficiently obtain breathability without obstruction of breathing (inhalation) and can exhibit the effects of antiviral, antipollenous and antichemical substances in daily life.

  In this embodiment, the filter bag 4 can be attached to a commercially available gauze mask, nonwoven fabric mask, plastic dust mask, etc. that are currently used. In other words, the nonwoven fabric or polyester, polyethylene, polyurethane acryl, cotton, wooly nylon, etc. are cut according to the shape of the conventional non-woven fabric 3D mask or plastic dust mask to match existing products. It has a large size and a three-dimensional shape.

  As shown in FIG. 1B, the filter bag 4 is filled with a large number of granular porous materials 41 and functions as a wet filter for a mask. Specifically, the filter bag 4 forms a non-woven bag body 42 that matches the shape of the mask main body 2, and inside thereof, as a porous material 41, expanded polystyrene beads mixed with a diameter of 3 to 6 mm are 3 to 5 mm. It is filled so as to be about a layer.

  In the present embodiment, the spherical surface of the porous material 41 is made of, for example, a thickener such as xanthan gum, carbomer, carrageenan, and pectin, a water retentive or moisturizing material such as bidfix (trade name), and the like. It is also possible to coat. In this case, water molecules adhering to the porous material 41 are held on the surface portion of the porous material 41, which has a high water retention effect. This allows fine particles such as dust, pollen, pollens, viruses, bacteria, formaldehyde, asbestos, radioactive substances, and odorous substances to adhere to the sphere surface. Can prevent hay fever, viral infections, and bacterial respiratory tract infections. In addition, deodorizing effect by adsorption of odorant is expected. This bidfix is a thickener mainly composed of natural raw materials such as guar gum, and has a water retention effect, emulsification promotion, separation prevention, and shape retention effect.

  As described above, the porous material 41 can be used according to the purpose by melting and containing a chemical substance, an antibacterial agent, etc. in the thickener and moisturizing agent on the surface of the sphere according to various purposes. Is possible. Water molecules may be attracted to the surface of the sphere by static electricity generated in the porous material 41 to enhance the adhesion to the sphere.

  As the non-woven fabric bag 42, a highly water-repellent non-woven fabric having air permeability can be used, and it is possible to maintain the extent that moisture and the like are attached to the lip 51 side (inner side) and to the outside air. A highly pseudo-water-based non-woven fabric is also used on the air intake side (outside) for the purpose of providing water retention and moisture retention.

  As shown in FIGS. 5 and 6, the filter bag 4 has a horizontal linear nose corresponding to the position 52 a below the nose of the wearer 5 on the contact surface 40 a that is in close contact with the lip 51 of the filter bag 4. It is preferable to form the lower hardening part 44 and a pair of nose lip groove hardening parts 45 and 45 corresponding to the constriction line (nasal lip groove) 51a on both sides of the lip of the wearer 5. Specifically, as shown in FIG. 5 (a), the nasal hardened portion 44 is formed in a mountain-folded portion in which a portion cured by sewing or thermal welding or the like of a substantially central portion of the nonwoven fabric. The nose lip groove curing portions 45, 45 are formed in a mountain fold shape by stitching the nonwoven fabric of the contact surface 40 a along the constriction line 51 a from both end positions of the subnasal curing portion 44. Thereby, as shown in FIGS. 5B to 5C, the filter bag 4 has a nasal hardened portion 44 and a pair of labial groove hardened portions 45, 45 protruding from the contact surface 40 a, and the lip The shape surrounds 51 and the shape is maintained.

  With this configuration, the filter bag 4 has a space inside the filter bag 4 corresponding to the position of the nose lip 52a and the position of the nasal lip groove (conical line) 51a on both sides of the lip 51. Will be collected. More specifically, anatomically, the nose tip, the tip portion of the lip 51, and the buttocks are aligned on the straight line LL, and the lower nose portion is formed so as to be recessed from the straight line LL. There is a groove called the nasal lip groove. In this embodiment, the nasal hardening part 44 forms a bulge at a location corresponding to the nose 52a, and the nasal hardening part 44 and the nasal lip groove hardening parts 45, 45 move the lip 51 upward (upper lip part). Since it can be surrounded from the side (the corner of the mouth), the porous material 41 is held at an appropriate thickness at the nostril position and the lip position at the time of wearing, and when the intake air passes through the intake passage, Dust and viruses are trapped on the surface of the porous material 41, and a high filter effect is exhibited.

  Furthermore, in this embodiment, the expanded polystyrene beads are impregnated or coated with a liquid. As this liquid, liquids such as antibacterial and antibacterial drugs, preparations, antiviral preparations, preparations having a deodorizing effect, chemical decomposition preparations, and fragrances can be used. Here, these preparations are commercially available for hand washing and washing. Preparations that have antibacterial and antiviral effects such as wiping agents, oral cleansing agents, soaps, etc. can be used. As chemical substance decomposition preparations, there are preparations that decompose formaldehyde, for example, and these are coated. You can also Thus, the application range is wide.

  In the present embodiment, the filter bag 4 is detachably fixed to the mask body 2. Specifically, as shown in FIG. 4A, for example, a fixing portion 21b made of double-sided tape, Velcro (registered trademark) or the like is provided on the inner surface of the mask body 2, and a bag body is provided on the fixing portion 21b. 22 may be pasted. After the filter bag 4 is stored in the bag body 22 in the bag body 22, the filter body 4 may be supported by the mask body 2 via the fixing portion 21 a attached to the fixing portion 21 b. Although the bag body 22 is attached to and detached from the main body 2, as another method, the filter bag 4 is directly placed in the pocket 23 provided on the inner surface of the mask main body 2 as shown in FIG. May be stored. Further, as shown in FIG. 4 (c), it is sufficient to use a filter bag by applying it to a generally used three-dimensional mask.

(Ventilation filtering method)
And by mounting | wearing with the mask 1 in this way, the ventilation | gas_flow filtering method of this invention is realizable. Specifically, the filter bag 4 filled with the porous material 41 is brought into close contact with the lip of the wearer by the support string 3 or the mask body 2 so that the outside air flows into the mask from the periphery of the mask body 2. Prevent dust and viruses from being directly inhaled into the respiratory tract and lungs.

  At this time, since the porous material 41 is granular, an intake passage 43 is formed in the filter bag 4 by the gap between the porous materials 41 as shown in FIG. Can be ensured above a certain amount, and it can be avoided that the wearer suffers from breathing.

  And since moisture is adsorbed by a large number of micropores formed on the surface of the porous material 41, the humidity in the intake passage 43 formed in the mask can be kept above a certain level, and the intake air is introduced into the intake passage 43. When passing through, dust and viruses in the air can be trapped on the porous material surface. In addition, the water retaining ability of the porous substance can prevent the oral mucosa, nasal mucosa, pharyngeal mucosa, airway mucosa and the like from being dried.

  In particular, in the present embodiment, since the porous material 41 is impregnated with a sterilizing / antibacterial agent or a liquid such as a fragrance, the sterilization / sterilization is effectively performed, and uncomfortable feeling at the time of wearing. Has been reduced. In this embodiment, the porous material 41 is impregnated or coated with a liquid such as a drug. However, the porous material 41 can be sufficiently wetted by water vapor contained in the breath of the wearer 5. The bacteria can be effectively sterilized and sterilized without impregnation with a liquid.

(Action / Effect)
As described above, according to the present embodiment, the filter bag 4 filled with the granular porous material is brought into close contact with the wearer's lip, so that it is possible to prevent the outside air from flowing into the mask from the periphery of the mask. And viruses are not directly aspirated into the airways and lungs. And by mounting | wearing with the mask 1 in this way, the ventilation | gas_flow filtering method of this invention is realizable.
That is, since the porous material 41 is granular, an intake passage 43 is formed in the filter bag 4 by the gap between the porous materials 41 as shown in FIG. More than a certain amount can be ensured, and it can be avoided that the wearer suffers from breathing.

  Furthermore, since moisture is adsorbed by a large number of micropores formed on the surface of the porous material 41, the humidity in the intake passage 43 formed in the mask can be kept above a certain level, and the intake air is introduced into the intake passage 43. When passing through, dust and viruses in the air are trapped on the porous material surface, and a high filter effect is exhibited.

  That is, when the intake air passes through the filter bag 4, it touches the spherical surface of the wet polystyrene foam beads, so that the air contact at this time includes pollen, viruses, bacteria, and chemical substances contained in the air. Adsorbed. Thereby, for example, allergens that cause hay fever, airborne viruses such as influenza virus, bacteria, chemical substances such as formaldehyde, asbestos, and radioactive substances can be effectively removed. In addition, the water retaining ability of the porous substance can prevent the oral mucosa, nasal mucosa, pharyngeal mucosa, airway mucosa and the like from being dried.

  Further, as shown in FIG. 6, when the filter bag 4 is formed with a mountain-folded nasal hardened portion 44 and a pair of mountain-folded nasal groove hardened portions 45, 45 on the contact surface 40 a, A constant space can be maintained at the position of the nose 52a and the positions on both sides of the lip 51. As a result, even when worn, the porous material 41 is appropriately disposed at the position of the nose 52a and the position of the lip 51, and when the intake air passes through the intake passage, dust and viruses in the air are surely contained. It is trapped on the surface of the porous material 41 and exhibits a high filter effect.

  Furthermore, since the filter bag 4 filled with a porous material is simply supported by the support string 3 via the mask body 2, the appearance and structure can be simplified, improving fashionability. In addition, the manufacturing cost can be kept low, and the utility is high. Moreover, in this embodiment, since a polystyrene foam bead is used as a granular porous substance, a filter bag can be manufactured with a lighter and cheaper material, and the weight reduction and cost reduction of the whole mask 1 are further promoted. be able to.

  In the present embodiment, the porous substance 41 is impregnated or coated with a liquid such as a sterilizing / antibacterial agent or a fragrance, so that the multifunction of the mask 1 can be achieved. Added value can be increased.

  Furthermore, since the filter bag 4 can be attached to and detached from the mask body 2, it is economical because only the filter bag 4 can be replaced, and the filter bag 4 can be used in combination with an existing mask. The application range of the present invention can be expanded.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In 1st Embodiment mentioned above, it was set as the structure which uses the bag body 42 of a nonwoven fabric for the filter bag 4, However, In this embodiment, the case where a stretchable net body is used is demonstrated to an example. FIGS. 11A and 11B are perspective views showing the filter bag 4a according to the second embodiment, and FIGS. 12A and 12B are perspective views showing the mask body 2a according to the second embodiment. FIGS. 13A and 13B are perspective views showing an operation of mounting the filter bag 4a according to the second embodiment on the mask body 2a, and FIG. 14 is related to the second embodiment. It is explanatory drawing which shows the state with which the mask 1a was mounted | worn with the wearer from the side. In the present embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, and the functions and the like are the same unless otherwise specified, and the description thereof is omitted.

  In the second embodiment, as shown in FIG. 11A, the filter bag 4a is formed of a synthetic resin such as polyester, polyurethane, polyethylene, cotton, woolly nylon, and is formed of a stretchable net 46. Yes. The net 46 has a knitted shape that is large enough to accommodate the granular porous material 41. As shown in FIG. Styrofoam beads 41 mixed with 3 to 6 mm are enclosed so as to have about 3 to 5 layers.

  Further, as shown in FIG. 11A, the filter bag 4a has a nasal hardened portion 47 formed by stitching a net or performing heat welding. As shown in FIG. 14, the nose hardening portion 47 is formed in a valley fold shape so that the hardened portion is positioned at the nose tip 53 of the wearer.

  Furthermore, in 2nd Embodiment, it has the characteristics also about the mask main body 2a which mounts | wears with the filter bag 4a. As shown in FIGS. 12A and 12B, the mask body 2a is a three-dimensional mask in which a ventilation space 25 is secured between the lip 51 of the wearer 5 and the filter. The mask main body 2a includes contact portions 24 on four sides of the mask main body 2a that come into contact with the lip, nose, cheek, and buttocks. The contact portion 24 is formed of a soft synthetic resin such as polyurethane and has a sponge shape with numerous holes opened therein. When the mask 1a is worn, the wearer's lip, nose, cheek, and heel It matches the shape of the part.

  The contact portion 24 has a predetermined thickness T, and when the filter bag 4a is mounted inside the mask body 2a, as shown in FIGS. 13 (a) and 13 (b), the filter bag 4a The contact portion 24 is accommodated within the height of the four sides. At this time, the stretchable filter bag 4a is formed with a bulge at the lower nose cured portion 47 as a boundary.

  With this configuration, when the wearer wears the mask 1a, the filter bag 4a has a shape surrounding the nose tip 53, as shown in FIG. Since a certain space is formed at a position corresponding to the position of the lip 51, the porous material 41 is collected. Accordingly, the porous material 41 is held with an appropriate thickness at the nose (nasal passage) position and the lip position, and when the intake air passes through the intake passage, dust and viruses in the air are surely adhered to the surface of the porous material 41. The high filter effect is demonstrated.

  Furthermore, in the present embodiment, since the mask body 2a includes the contact portion 24, the contact portion 24 can prevent outside air from being sucked from the four sides of the mask, and as a result, intake air from the periphery of the mask can be prevented. The filter effect and securing of the filter bag layer can be reliably obtained, and the filter effect can be effectively functioned.

  In addition, in 1st Embodiment, the filter bag 4 formed with the bag body 42 of a nonwoven fabric and the mask main body 2 which does not have the contact part 24 are combined, In 2nd Embodiment, the filter bag 4a formed with the net body, Although the mask main body 2a provided with the contact portion 24 is combined, the present invention is not limited to these. For example, the mask main body 2a provided with the contact portion 24 and the nonwoven fabric filter bag 4 may be combined or contacted. The mask body 2 that does not include the portion 24 may be combined with the mesh filter bag 4a.

[Third Embodiment]
Next, a third embodiment will be described. In this embodiment, the case where the filter bag 4 is used for the dust mask 1b that prevents suction of harmful substances will be described as an example. FIG. 16 is a perspective view illustrating a configuration of a dust mask 1b according to the third embodiment, and FIGS. 17A to 17D are explanatory diagrams illustrating respective configurations of the dust mask 1b according to the third embodiment. is there.

  FIG. 18 is an explanatory view showing the rotation state of the main body frame 120, the outer frame 110, and the inner frame 130 according to the third embodiment, and FIG. 19 is in close contact with the mask main body 100 according to the third embodiment. FIG. 20 is an explanatory view showing a state in which the part 140 is mounted, and FIG. 20 is an explanatory view showing a state in which the filter bag 4 is stored in the mask main body 100 according to the third embodiment.

  As shown in FIG. 16, the dust mask 1b according to this embodiment includes a support string body 3a that is wound around the head of the wearer, and a lip 51 and a nostril 52 of the wearer 5 that are held by the support string body 3a. And a filter bag 4b housed inside the mask body 100.

  The support string 3a is a support member that is fixed to both sides of the mask main body 100 and is fixed to the mask 1b by being hung around the head. This support string body 3a is formed of a rubber member that can elastically expand and contract, and can be brought into contact with the shape of the head when worn. In addition, the support string body 3a is not limited to the configuration as described above, and may be configured to have a buckle (not shown) and adjust the length via the buckle, for example.

  The filter bag 4 is a mask filter bag housed in the mask body 100. The filter bag 4 is formed as a bag body 42 that matches the shape of the dust mask by cutting a nonwoven fabric or the like, as described above, and the inside of the bag body 42 is filled with a large number of granular porous substances. ing.

  Further, in this embodiment, in order to prevent inhalation of harmful chemical substances such as formaldehyde, asbestos, radioactive substances, and odorous substances, the spherical surface of the porous substance 41 is increased with, for example, xanthan gum, carbomer, carrageenan, pectin and the like. It is coated with a substance having water retention and moisture retention, such as a sticking agent and Bidfix (registered trademark). For example, as a highly polar oil agent, Cosmol (manufactured by Nisshin Oillio Group) which is polyglycenol-2 triisostearate or diisostearyl malate is used. Further, malic acid (or titanium oxide), a phosphoric acid compound (HPO), and a polymer (ECO) using ethylene oxide are reacted to coat a porous material with a liquid having bactericidal action and water retention.

  The mask body 100 is a member formed of a flexible member (material) such as plastic and covering the lip 51 and the nostril 52 of the wearer 5 so as to be in close contact with each other, as shown in FIGS. As described above, the main body frame 120, the outer frame 110, the inner frame 130, and the contact portion 140 are configured.

  The main body frame 120 is formed in a substantially hemispherical shape so as to cover the lip 51 and the nostril 52 of the wearer 5, and has a lower opening 121 on the side in contact with the wearer's face, and an upper opening 122 on the opposite side. And is in the air so that air passes through the lower opening 121 and the upper opening 122 during intake and exhaust.

  An outer frame 110 is provided outside the main body frame 120. The outer frame 110 is a cover member that protects the stored filter bag 4. The outer frame 110 is formed in a substantially hemispherical shape so as to cover the upper portion of the main body frame 120 and is in the interior. The outer frame 110 is a substantially central portion, and a lattice portion 112 is formed at a location corresponding to the upper opening portion 122, and a ventilation opening portion 111 is formed between the lattice portions 112.

  On the other hand, an inner frame 130 is fitted into the main body frame 120, and the inner frame 130 is supported by the main body frame 120 and the contact portion 140. That is, the inner frame 130 covers the lip and nostril together with the main body frame 120 and the close contact portion 140 so that the space S is defined between the filter bag 4 and the lip and nostril, and maintains the airtightness of the space S. . In the present embodiment, the inner frame 130 is disposed so as to be positioned inside the main body frame 120, is formed in a substantially hemispherical shape, and is in the interior air. In addition, the inner frame 130 is formed with a lattice portion 132 at a position corresponding to the upper opening 122 at a substantially central portion, and a ventilation opening 131 is formed between the lattice portions 132.

  The main body frame 120, the outer frame 110, and the inner frame 130 have locking shafts 113, 123, and 133, respectively, and are connected via the locking shafts 113, 123, and 133. At the same time, as shown in FIG. 18, it is rotatable about the locking shafts 113, 123, 133. At this time, the position of the inner frame 130 disposed in the main body frame 120 is set by the space S so that the nose covered in the mask does not contact the lattice portion 132.

  With this configuration, as shown in FIG. 19, the storage unit 150 that stores the filter bag 4 between the outer frame 110 and the inner frame 130 when the main body frame 120, the outer frame 110, and the inner frame 130 are locked. As shown in FIG. 20, the filter bag 4 matching the size of the storage portion 150 is stored. The storage unit 150 is fixed to the vicinity of the lips and nostrils while maintaining the airtightness of the space S by the main body frame 120 and the close contact part 140 so that the space S is defined between the lips and the nostrils. The At this time, the filter bag 4 stored in the storage unit 150 is fixed by the lattice unit 112 and the lattice unit 132. Further, since the ventilation opening 111 and the ventilation opening 131 are formed, the air sucked from the outside always passes through the filter bag 4 and is sucked into the lungs of the wearer.

  A close contact portion 140 is detachably provided on the outer edge of the lower opening 121. For example, a soft elastic material such as silicon rubber is used for the contact portion 140 so as to follow the shape of the wearer 5 around the lip 51 and the nostril 52 so that the contact portion 140 is in close contact with the wearer's face when worn. Thus, the airtightness of the space S is ensured. In addition, when attaching this contact | adherence part 140 to the main body frame 120, as shown in FIG. 19, it attaches so that the outer edge 124 of the lower opening part 121 may be covered from the exterior.

  As described above, according to the present embodiment, since the contact portion 140 closely contacts the lip 51 and the nostril 52 of the wearer 5, it is possible to prevent outside air from flowing into the mask from the periphery of the mask when inhaled. Dust and viruses are not directly sucked into the respiratory tract and lungs.

  In addition, in the dust mask 1b, the filter bag 4 is stored in the storage unit 150. Therefore, when outside air is sucked into the dust mask 1b, the filter bag 4 always passes through the filter bag 4. It will be sucked into the lungs. As a result, pollen, viruses, bacteria, and chemical substances in the particles contained in the air are adsorbed by touching the spherical surfaces of the wet polystyrene foam beads in the filter bag 4, for example, allergies that cause hay fever. Source materials, airborne viruses such as influenza virus, bacteria, chemical substances such as formaldehyde, asbestos and radioactive substances can be effectively removed. In addition, the water retaining ability of the porous substance can prevent the oral mucosa, nasal mucosa, pharyngeal mucosa, airway mucosa and the like from being dried.

  Further, in the present embodiment, the inner frame 130 is disposed inside the main body frame 120, and a space S is defined between the filter bag 4 and the lips and nostrils. When worn, it is possible to prevent the mouth and nose from coming into direct contact with the filter bag 4. Thereby, various chemical | medical agents with which the filter bag 4 was filled, the adsorbed harmful substance, etc. can be prevented from taking in into a body.

(Example of change)
The description of each embodiment described above is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications and configurations can be combined depending on the design and the like as long as the technical idea according to the present invention is not deviated. Of course. Note that, in the following modification, the same components as those in the above-described embodiments are denoted by the same reference numerals, and the functions and the like are the same unless otherwise specified, and the description thereof is omitted.

  For example, the mask 1 and mask filter bag 4 of the present invention are not limited to the above-described embodiments, and the following modifications can be made. FIG. 7 is a perspective view showing the filter bag 4 and the water holding body 6 attached to the mask main body 2 according to this modification, and FIG. 8 shows the filter bag 4 and the water holding body 6 according to this modification. FIG. 9 is a cross-sectional view showing the filter bag 4 and the moisture retaining body 6 according to this modification, and FIG. 10 shows the overall configuration of the mask 1 according to this modification, and is worn. It is explanatory drawing which shows the state with which the person was mounted | worn from a side.

(First change example)
The mask 1 and mask filter bag 4 according to this modification may be provided with a moisture holding body 6 between the mask body 2 and the filter bag 4 as shown in FIG. The moisture holding body 6 is a member having a water absorbing member 62 such as sponge, fiber, polymer or the like inside a bag body 61 formed of a material having water repellency so as not to hinder ventilation. Further, the filter bag 4 has a shape along the outer edge portion.

  In this modified example, as shown in FIG. 8, the moisture holder 6 and the filter bag 4 are provided with a detachable connecting portion 7, and the water absorbing member 62 absorbs water through the connecting portion 7. The produced moisture is supplied to the filter bag 4. Specifically, as shown in FIG. 9, the filter bag 4 is provided with a concave portion 7 a through which the central portion passes, and the moisture holder 6 is provided with a convex portion 7 b through which the central portion passes. And when these recessed part 7a and the convex part 7b are engage | inserted, the hole part 71 (71a, 71b) which the inside of the moisture holding body 6 and the filter bag 4 connects is formed.

  Thus, in the modified example, as shown in FIG. 9, the wearer 5 presses the moisture holding body 6 in a state where the moisture holding body 6 and the filter bag 4 are connected, so that the hole portion 71 of the connecting portion 7. Then, the moisture in the moisture holder 6 is injected into the filter bag 4, and the moisture is adsorbed by the numerous micropores formed on the surface of the porous material 41. With this configuration, the humidity in the intake path formed in the mask 1 can be maintained at a certain level or more for a long time, and dust and viruses in the air can pass when the intake air passes through the intake path. Is trapped on the surface of the porous material 41, and a high filter effect is exhibited.

(Second modification)
Next, a second modification example will be described. This modification is characterized in that the mask body 2 is provided with a storage portion 26 for storing the moisture holding body 6a. FIG. 15 is a perspective view showing a state in which the moisture holder 6a is stored in the storage unit 26 according to the second modification. As shown in the figure, in the present modification example, storage portions 26 are provided at the upper part of the inner surface of the mask main body 2. Both sides of the storage units 26 and 26 are open, and the moisture holding body 6a is stored in the storage units 26 and 26 when the moisture holding body 6a is inserted through the both side portions.

  In the present modified example, the moisture holder 6a is formed of a synthetic resin or the like, and is a dropper member that includes a barrel portion 64 that holds a liquid and a water inlet 63 that pours the liquid. Here, also in this modified example, the liquid to be loaded includes water, a chemical solution, a fragrance, and the like.

  Then, when the wearer 5 presses the moisture holding body 6 a in a state where the moisture holding body 6 a is stored in the storage portions 26, 26, moisture is injected into the filter bag 4 from the water inlet 63, and the porous material 41. Water is adsorbed by a large number of micropores formed on the surface. With this configuration, the humidity in the intake path formed in the mask 1 can be maintained at a certain level or more for a long time, and dust and viruses in the air can pass when the intake air passes through the intake path. Is trapped on the surface of the porous material 41, and a high filter effect is exhibited. Further, in this modified example, since the member that retains moisture has a dropper shape, a liquid according to the purpose can be easily loaded, and the spherical surface in the filter bag 4 can be coated. Become.

  In the first modified example and the second modified example, the mask 1 includes the moisture holding body 6 and the porous material 41 in the filter bag 4 adsorbs moisture. However, the present invention is limited to these. It is good also as a structure which adsorb | sucks the water | moisture content to the porous substance 41 in the filter bag 4, for example using the spray etc. which spray a liquid.

(Third change example)
Next, other configurations of the mask 1 and the mask filter bag 4 of the present invention will be described. In this modified example, as shown in FIG. 21, a pocket 23 for storing the filter bag 4 is formed in a commercially available three-dimensional mask, and a bulge (mountain) raised on the wearer side is formed in this pocket 23. The configuration will be described.

  Specifically, as shown in FIGS. 22A and 22B, a thin lip sheet 23a is bonded to the inner surface of a commercially available three-dimensional mask body 2b, and the bottom and sides of the lip sheet 23a are bonded to each other. By joining the portion to the mask body 2b by stitching or adhesion, a pocket 23 having an upper opening 23c into which the filter bag 4 can be taken in and out is formed. For the lip portion sheet 23a, for example, a breathable material such as gauze or nonwoven fabric is used.

  In addition, a fixing portion 23d made of double-sided tape, Velcro (registered trademark) or the like is provided near the upper opening 23c of the pocket 23. After the filter bag 4 is stored in the pocket 23, the upper portion of the pocket 23 is provided. The opening 23c can be closed.

  Furthermore, as shown in FIGS. 22 (a) and 22 (b), an upper lip wire as a nasal hardened portion formed of a shape holding member such as plastic or metal member having plasticity is provided inside the lip portion sheet 23a. 23b is provided. The upper lip wire 23b is provided at a location that is located under the nose 52a when a mask is worn.

  By providing the upper lip wire 23b in this way, as shown in FIG. 23A, the contact surface 23e of the pocket 23 is formed with a mountain so as to contact the lower nose 52a portion, and the shape thereof is maintained. It becomes like this. Thus, when the mask is worn, as shown in FIG. 23 (b), a certain space is formed at a position corresponding to the position of the nose 52a, and the porous material 41 is collected there, and the nose 52a ( The porous material 41 is held at an appropriate thickness at the nostril position and the lip 51 position. As a result, when the intake air passes through the intake passage, dust and viruses in the air are reliably captured on the surface of the porous material 41, and a high filter effect is exhibited.

  22 and FIG. 23, the pocket 23 is configured to open to the top. For example, as shown in FIG. 24, the lip sheet 23a is joined to the inner side surface of the mask body 2b by stitching or adhesion, A side opening 23f may be provided on the side, and the filter bag 4 may be inserted and removed from the side opening 23f. In this case, since the opening portion is provided at a position not in contact with the nose portion, the closed portion of the fixing portion 23d can be maintained even when the mask is deformed when being worn. As a result, it is possible to reliably obtain the filter effect of the intake air from the periphery of the mask and the filter bag layer, and to effectively function the filter effect.

  In the above modification, the upper lip wire 23b is attached to the contact surface 23e of the pocket 23. For example, the upper lip portion is formed on the mesh body that forms the surface of the filter bag so that the filter bag is in direct contact with the lip. The wire 23b may be fixed or welded.

(Fourth modification)
Although the dust mask 1b has been described in the third embodiment described above, the gist of the present modification is to simplify and reduce the weight of the dust mask. FIGS. 25A and 25B are perspective views showing the dust mask 1c according to this modification, and FIG. 26 shows the operation when the filter bag 4 is stored in the dust mask 1c according to this modification. FIG. 27 is an explanatory diagram showing a state in which the dust mask 1c according to this modification is attached to the wearer from the side.

  As shown in FIGS. 25A and 25B, the dust mask main body 200 according to this modified example is formed of a synthetic resin having a small specific gravity such as polypropylene and excellent chemical resistance. And an outer frame 210.

  The main body frame 220 is a member that covers the lips and nostrils and maintains the airtightness of the spaces S so that the spaces S are defined between the filter bag 4 housed inside and the lips and nostrils. Specifically, the main body frame 220 is formed in a substantially hemispherical shape so as to cover the lip 51 and the nostril 52 of the wearer 5, and a plurality of slits 221 for intake and exhaust are provided at a substantially central portion so that air passes during intake and exhaust. Is formed. Further, a hole 225 is provided in the outer edge of the main body frame 220, and the support string body 3 b is inserted into the hole 225 and is formed in an annular shape so as to be hung on both ears of the wearer 5. Here, the slits 221 are formed for intake and exhaust, but for example, the main body frame 220 may be cut out in a lattice shape to form an opening.

  An outer frame 210 is provided outside the main body frame 220. The outer frame 210 is a cover member that protects the accommodated filter bag 4, is formed in a substantially hemispherical shape so as to cover the slit 221 of the main body frame 220, and is in the interior. Further, the outer frame 210 is formed with a lattice portion 212 at a substantially central portion, and a ventilation opening 211 is formed between the lattice portions 212.

  Then, the outer frame 210 is disposed on the outer surface of the main body frame 220, and the upper portion and both side portions of the outer frame 210 are joined to the main body frame 220 by stitching or thermal bonding. As described above, when the outer frame 210 is joined to the main body frame 220, the storage portion 230 in which the filter bag 4 is stored is formed. When the filter bag 4 is stored in the storage unit 230, as shown in FIG. 26, the lower part of the main body frame 220 is raised and the filter bag 4 is inserted into the storage unit 230.

  Thus, according to this modification, the dust mask is formed of a material such as polypropylene, so that the mask can be simplified and reduced in weight. In addition, according to this modified example, the main body frame 220 is formed in a substantially hemispherical shape so as to cover the lip 51 and the nostril 52 of the wearer 5, so that the dust mask 1 c is attached as shown in FIG. 27. At this time, the lip 51 and the nostril 52 can be prevented from coming into contact with the filter bag 4. Further, since the inner side surface of the main body frame 220 is formed of polypropylene or the like, for example, even when the mask is pressed from the outside, the lips 51 and the nostrils 52 can be prevented from coming into contact with the filter bag 4. .

  Thus, according to this modified example, the mask can be simplified and reduced in weight, and various chemicals filled in the filter bag 4 and adsorbed harmful substances are prevented from being taken into the body. can do.

  In this modification, a synthetic resin such as polypropylene is used as the material of the outer frame 210. However, for example, as shown in FIG. Good. At this time, the filter bag 4 uses a synthetic resin such as polyester, polyurethane, polyethylene, cotton, woolly nylon, etc., and a stretchable net. This eliminates the need for the outer frame and reduces the number of parts of the mask main body, thereby simplifying the mask and reducing the manufacturing cost.

  In this modification, the main body frame 220 is engaged with the support string 3b that is wound around the head of the wearer. For example, as shown in FIG. 29, the dust mask 1c is attached to the lip 51 or the nostril. The commercially available mask main body 2c may be covered from the top and used in the position 52. Thereby, it is not necessary to join the support string 3b to the dust mask 1c itself, the number of parts can be reduced, and the manufacturing cost can be reduced.

(Fifth modification)
In the embodiment and the modification described above, the filter bag 4 is made of the same material. For example, as shown in FIG. 29, the wearer's lip side surface 49 and the outer side surface 48 are made of different materials. It may be formed by. In this modified example, as shown in FIG. 30, a stretchable network body is formed on the lip side surface 49 of the wearer using a synthetic resin such as polyester. On the other hand, the outer side surface 48 is formed of, for example, a nonwoven fabric or a synthetic resin such as polypropylene. In use, the mask may be used as described above, or a commercially available mask 2c may be covered from the top as shown in FIG.

  When the filter bag 4b is used in this way, the lip side surface 49 of the wearer is formed of a stretchable mesh body, so that the breathability of the lip 51 and the nostril 52 of the wearer 5 is improved. Further, since the filter bag 4b is mounted, the filter bag 4b is deformed so as to correspond to the position of the nose (nasal cavity) 52a or the position of the lip 51 when the filter bag 4b is attached. The lip 51 and the nostril 52 can be covered so as to be in close contact with each other. Thereby, dust and viruses in the air are surely captured on the surface of the porous material 41, and a high filter effect is exhibited. On the other hand, when the non-woven fabric is used for the outer side surface 48, the filter effect is improved. Further, when a synthetic resin such as polypropylene is used, the shape can be easily maintained.

DESCRIPTION OF SYMBOLS 1 (1a, 1b, 1c) ... Mask 2 (2a, 2b, 2c) ... Mask main body 3 (3a, 3b) ... Supporting string 4 (4a, 4b) ... Filter bag 5 ... Wearer 6 ... Moisture holding body 6a ... Moisture retention body 7 ... Connecting part 7a ... Concave part 7b ... Convex part 21a, 21b ... Fixed part 22 ... Bag body 23 ... Pocket 23a ... Lip part sheet 23b ... Upper lip part wire 23c ... Upper opening 23d ... Fixed part 23e ... Contact surface 23f ... Side opening 24 ... Contact part 25 ... Space 26 ... Storage part 41 ... Porous material 42 ... Bag body 43 ... Inhalation route 44 ... Subnasal hardening part 45 ... Nasal lip groove hardening part 46 ... Net body 47 ... Nose tip hardening Part 48 ... Lip side 49 ... Outer side 51 ... Lips 51a ... Spiral line (nose lip groove)
52 ... Nostril 52a ... Under the nose 53 ... Nose tip 61 ... Bag body 62 ... Water absorption member 63 ... Water inlet 64 ... Body 71 ... Hole 100 ... Mask body 110 ... Outer frame 111 ... Ventilation opening 112 ... Grid part 113 ... Locking shaft 120 ... body frame 121 ... lower opening 122 ... upper opening 123 ... locking part 124 ... outer edge 130 ... inner frame 131 ... ventilation opening 132 ... lattice 133 ... locking part 140 ... adhesion part 150 ... storage 200: Mask body 210 ... Outer frame 211 ... Ventilation opening 212 ... Lattice part 220 ... Body frame 221 ... Slit 225 ... Hole 230 ... Storage part

Claims (20)

  A pair of support strings that are hung on the wearer's ears, and a filter bag that is held by the support string and is in close contact with the lips of the wearer. A mask filled with a porous material.   2. The mask according to claim 1, further comprising a horizontal linear nasal hardening portion corresponding to the wearer's nose position, formed on a contact surface that is in close contact with the lips of the filter bag. . 3. The mask according to claim 1, further comprising a pair of nose lip groove hardening portions formed on a contact surface of the filter bag that is in close contact with the lips and corresponding to a position on the lip side of the wearer. .   The mask according to claim 1 or 2, wherein the granular porous material is expanded polystyrene beads.   The mask according to any one of claims 1 to 4, wherein the porous material is impregnated or coated with a liquid.   The mask according to claim 1, wherein the filter bag is detachably fixed to the support string. A filter bag that can be applied to a mask that covers at least the wearer's lips when worn, and has air permeability that is in close contact with the wearer's lips by a pair of support strings that are hung on both ears of the wearer. A mask filter bag comprising a bag and a plurality of granular porous materials filled in the bag.   The filter bag is formed on a contact surface that is in close contact with the lips, and is formed on the contact surface and a horizontal linear nasal hardened portion corresponding to the wearer's nasal position, on the lip side of the wearer The mask filter bag according to claim 7, further comprising a pair of nose lip groove curing portions corresponding to positions.   The filter bag for a mask according to claim 7 or 8, wherein the granular porous material is a polystyrene foam bead.   The mask filter bag according to claim 7, wherein the porous material is impregnated with a liquid.   11. The filter bag according to claim 7, wherein the filter bag is supported by a pair of support strings that are hung on both ears of the wearer when worn, and is detachably fixed to the support strings. A filter bag for masks according to the above.   A ventilation filtering method characterized by supporting a filter bag filled with a large number of granular porous materials so as to be in close contact with the lip of the wearer.   A filter bag filled with a large number of granular porous materials is supported so that a certain space is defined between the lip of the wearer and the filter bag, and the airtightness of the space is maintained. A ventilation filtering method characterized by:   The ventilation filtering method according to claim 12 or 13, wherein the granular porous material is expanded polystyrene beads.   The ventilation filtering method according to claim 12, wherein the porous material is impregnated with a liquid. A support string that is wrapped around the wearer's head;
A mask body that is held by the support string and covers the lips and nostrils of the wearer;
A filter bag housed inside the mask body,
The filter body is stored in the mask body so that a space is defined between the filter bag and the lips and nostrils.
A dust mask, wherein the filter bag is filled with a large number of granular porous materials. The mask body is
A storage section for storing the filter bag;
An outer frame portion for covering the filter bag stored in the storage portion from the outside;
An inner frame portion that covers the lip and nostril and maintains airtightness of the space so that a space is defined between the filter bag stored in the storage portion and the lip and nostril; The dust mask according to claim 16, further comprising: a dust mask.   The dust mask according to claim 16 or 17, wherein the granular porous material is expanded polystyrene beads.   The dust mask according to any one of claims 16 to 18, wherein the porous material is impregnated or coated with a liquid.   The dust mask according to any one of claims 16 to 19, wherein the filter bag is detachably fixed to the support string.