JP3158500U - mask - Google Patents

Abstract

[PROBLEMS] To improve the face fit at the time of inhalation, prevent inhalation of air from the outer peripheral edge of the mask body, enhance the exhaustability at the time of exhalation, and maximize the collection performance of the mask filter In addition, a mask that can be worn for a long time is provided. A filter portion 2 formed so as to cover a nose portion and a mouth portion of a mask 1, a face contact portion 3 provided along an outer peripheral edge portion of the filter portion 2, and an outer wall surface of the filter portion 2 It comprises a fixed attachment string 4, a pad member 5 that relieves pressure on the nose, and a guide member that maintains the shape of the nose. By disposing the face contact portion 3 outside the outer peripheral edge portion of the filter portion 2, the face contact portion 3 comes into contact with the face during inhalation to prevent invasion of pollen, viruses, etc. floating in the atmosphere. [Selection] Figure 1

Description

  The present invention relates to a mask covering a nose and a mouth.

  Conventionally, there existed what was described in patent document 1 as a simple dust mask. According to this, the simple dust mask was formed so that the mask body covered the nose part and the mouth part in a substantially hemispherical shape by the filter material. Then, a face contact member extending inward from the entire outer peripheral edge portion of the mask body and extending substantially in an annular shape so as to surround the nose wing portion and the mouth portion is provided. It was joined to the outer peripheral edge of the main body, and was formed by mixing highly water-absorbing fibers with a non-woven fabric having a predetermined thickness.

  There is also a mask that is attached to the face by attaching a tape or the like to the filter portion.

JP 2000-217940 A

  However, in the conventional simple dust mask shown above, the face contact member extends inward from the entire outer peripheral edge of the mask body and is in contact with the face. At the time of inhalation, since the atmospheric pressure in the mask is lowered, the contact of the face-contacting member with the face is weakened and the inflowing air cannot be blocked. Therefore, there is a problem that the face fitting property is lowered, air is often sucked from the outer peripheral edge of the mask body, and the filter collecting performance is not actually exhibited. During exhalation, the air pressure in the mask increases, exhalation flows along the inner wall of the mask body, the face contact member comes into strong contact with the face, and the outflow of exhalation from the outer peripheral edge of the mask body This prevents the exhalation from flowing out only through the filter material of the mask body, resulting in a problem of poor discharge efficiency.

  In addition, the conventional mask in which a tape or the like is attached to the filter portion so as to be in close contact with the face has a problem in that the discharge efficiency is poor, and the filter portion absorbs moisture due to exhalation and breathing becomes difficult.

  In view of the above circumstances, the present invention enhances the face fit during inhalation, prevents the inhalation of air from the outer peripheral edge of the mask body, enhances the exhaustability during exhalation, and collects the filter of the mask. An object of the present invention is to provide a mask that can be used for a long time while exhibiting the maximum effect.

In the mask of the device according to claim 1, the filter part formed in a substantially hemispherical shape so as to cover the nose part and the mouth part, the face part provided along the outer peripheral edge part of the filter part, and the filter A mask configured to include an attachment string secured to a portion,
The face contact portion is formed in a curved shape or annular shape with a flexible member, and the outer edge portion along the bending direction or the circumferential direction is arranged to protrude outward from the outer peripheral edge portion of the filter portion. It was established.

  The mask of the invention according to claim 2 is characterized in that the face contact portion is formed of a nonwoven fabric or an elastomer and is joined to the filter portion.

  In the mask of the invention according to claim 3, the face portion is formed in a band shape, joined to the inner wall surface of the outer peripheral edge portion of the filter portion, and the cross section in the short direction sandwiches the outer peripheral edge portion of the filter portion. It is formed in a substantially U shape.

  According to the first aspect of the present invention, the face-facing portion is formed in a curved shape or an annular shape with a flexible member, and the outer edge portion along the longitudinal direction protrudes outward from the outer peripheral edge portion of the filter portion. By arranging in this way, the air pressure inside the filter part becomes lower than the outside during inhalation, so that the part protruding outward from the outer peripheral edge part of the filter part of the face part adheres to the face. A fitting property becomes high and it can prevent inhalation of the air from the outer periphery part of the filter part of a mask main body. And since almost all intake is performed through a filter part, dust, a virus, etc. which float in air | atmosphere can be collected by a filter part, and it can prevent it from inhaling. During exhalation, the air pressure inside the filter unit becomes higher than the outside, so the contact between the face part and the face weakens, and air is exhausted from the gap between the face part and the face, that is, other than the filter part. It is possible to increase the exhaustability during exhalation. Further, moisture absorption due to exhalation of the filter portion can be prevented. Therefore, since it does not become difficult to breathe, it can be worn for a long time.

  In the invention according to claim 2, by forming the face part from a non-woven fabric or elastomer having flexibility, the face part can be immediately adapted to changes in atmospheric pressure to further improve the face fit, Can be installed.

  In the invention according to claim 3, the face portion is formed in a band shape, joined to the inner wall surface of the outer peripheral edge portion of the filter portion, and the cross-section in the short direction sandwiches the outer peripheral edge portion of the filter portion. When the mask is attached, the face-facing part enters between the outer peripheral edge of the filter part and the face when the mask is attached, making it easier to attach the mask, improving the face fit, and absorbing moisture by exhalation of the filter part. The prevention effect is enhanced and it can be worn for a long time.

It is a perspective view of the mask of the 1st Embodiment of this invention. It is a front view of the mask of the 1st Embodiment of this invention. FIG. 3 is an end view of the SS part of FIG. 2. It is the elements on larger scale of the face-contact part in FIG. It is a cross-sectional enlarged view of the filter part of the mask of the 1st Embodiment of this invention. It is a rear view of the mask of the 1st Embodiment of this invention. It is the state figure of the face-contact part at the time of (a) inhalation of the mask of the 1st Embodiment of this invention, (b) It is the state figure of the face-contact part at the time of expiration. It is a perspective view of the mask of the 2nd Embodiment of this invention.

  A first embodiment of the mask of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the mask 1 includes a filter part 2 formed so as to cover the nose part and the mouth part, a face contact part 3 provided along the outer peripheral edge part 21 of the filter part 2, and a filter part 2. 2, a pad member 5 that softens the pressure on the nose, and a guide member 6 that holds the shape of the nose shown in FIG. 2. In the mask 1, the side in contact with the face is the rear side, and the opposite side is the front side.

  As shown in FIG. 1 and FIG. 3, the filter portion 2 is formed in a substantially hemispherical shape whose rear side is open so as to cover the nose portion and the mouth portion. The material of the filter part 2 is a needle punched nonwoven fabric of 120 g / square meter with PET (100% polyester) and a melt blown nonwoven fabric of 30 g / square meter with PP (100% polypropylene).

  As shown in FIG. 5, the filter unit 2 includes a first layer 7 from the outside using a needle punched nonwoven fabric, a second layer 8 a melt blown nonwoven fabric, a third layer 9 a melt blown nonwoven fabric, and a fourth layer 10 a needle punched nonwoven fabric. They are formed and joined by thermal welding.

  As shown in FIG. 6, the face-contact portion 3 is made of a silicone rubber that is flexible and has a curved band shape and is formed in a substantially C shape. In order to enhance the face contact with the face, the face contact portion 3 is formed with a thickness of 0.2 mm to 0.6 mm. In order to facilitate attachment to the face, the cross section in the short direction of the face contact portion 3 is formed in a substantially U shape so as to sandwich the outer peripheral edge portion 21 of the filter portion 2. As shown in FIG. 4, the face contact portion 3 is an inner edge portion 32 along the bending direction, and is bonded and joined to the inner wall surface of the filter portion 2 along the outer peripheral edge portion 21 of the filter portion 2. The outer edge 31 along the curve direction of the face-contact part 3 is arranged outside the outer peripheral edge 21 of the filter part 2.

  As shown in FIG. 2, the attachment string 4 is a rubber string formed in a band shape, and both ends are fastened to the outer wall surface of the filter unit 2 so as to be hung on the head.

 As shown in FIGS. 1 and 6, the pad member 5 is formed in a band shape with urethane, and is fixed to an inner wall surface in the vicinity of the outer peripheral edge portion 21 on the upper portion of the filter portion 2 where the face contact portion 3 is not joined. Yes.

  As shown in FIG. 2, the guide member 6 is made of a metal and is formed in a band shape having a bent central portion so as to fit the nose bridge, and in the vicinity of the outer peripheral edge portion 21 of the filter portion 2 to which the pad member 5 is fixed. It is fixed to the corresponding outer wall.

  In the mask 1 of the present embodiment, the face contact portion 3 has flexibility, is formed in a curved belt shape and is substantially C-shaped, and the outer edge portion 31 along the longitudinal direction is the outer peripheral edge portion of the filter portion 2. By disposing so as to protrude outward from 21, the air pressure inside the filter part 2 becomes lower than the outside during intake, as shown in FIG. Since the portion protruding outward from the outer peripheral edge portion 21 is in close contact with the face, the face fitting property is enhanced, and the suction of air from the outer peripheral edge portion 21 of the filter portion 2 of the mask 1 can be prevented. And since almost the whole intake is performed through the filter part 2, the dust, virus, etc. which float in the air | atmosphere are collected by the filter part 2, and it can prevent it from inhaling. In addition, as shown in FIG. 7B, when exhaling, the pressure inside the filter unit 2 becomes higher than the outside, so that the contact between the face part 3 and the face is weakened, and the face part 3 and the face Air can be exhausted from the gap, that is, other than the filter unit 2, and the exhaustability during exhalation can be enhanced. Moreover, the moisture absorption by the expiration | expired_air of the filter part 2 can be prevented. Therefore, since it does not become difficult to breathe, it can be worn for a long time.

  Further, by forming the face contact portion 3 with elastic and high sealing silicone rubber, it is possible to respond quickly to changes in atmospheric pressure and enhance face fit. Furthermore, since silicone rubber shares heat resistance and cold resistance, face fit can be maintained even in tropical regions and cold regions.

  Table 1 shows the result of a comparative inspection of the intrusion rate of the outside air during intake when the face contact portion 3 is formed of silicone rubber. Here, “intrusion rate of outside air” refers to the number of indoor dust particles inside the mask that has entered through the gap between the face and the mask during inspiration using a mask fitting tester (particle number measurement by laser light scattering method). In addition, it is expressed by dividing by the number of indoor dust particles outside the mask. When silicone rubber is used, the intrusion rate of outside air at the time of inhalation becomes 5.24% on average, and when compared with the existing product as 1, it can be seen that the intrusion prevention performance of outside air is improved by 7.95 times.

  Further, the face contact portion 3 is formed in a curved band shape, joined to the inner wall surface of the outer peripheral edge portion 21 of the filter portion 2, and the cross-section in the short direction sandwiches the outer peripheral edge portion 21 of the filter portion 2. Since the face contact portion 3 enters between the outer peripheral edge portion 21 of the filter portion 2 and the face when the mask is mounted, the mask 1 can be easily mounted, and the face fitting property is improved. The effect of preventing moisture absorption due to exhalation of the part 2 can be enhanced and can be worn for a long time.

  Moreover, the filter part 2 can be made into the laminated nonwoven fabric, and the collection performance of the dust which floats in air | atmosphere, a virus, etc. can be improved.

  Silicone rubber is used for the face contact portion 3, but other elastomers (synthetic rubber, elastic plastic) having elasticity and sealing properties can be used.

  Moreover, as another modification of the face-contact part 3, all the nonwoven fabrics which have flexibility and can collect dust, a virus, etc. can be used. For example, the melt blown non-woven fabric is formed in a band shape formed in a curved shape or an annular shape, and is formed in a substantially U shape sandwiching the outer peripheral edge portion 21 of the filter portion 2, along the outer peripheral edge portion 21 of the filter portion 2. 2 may be welded and joined to the inner wall surface. The thickness of the face contact portion 3 is preferably 0.5 to 0.8 mm.

  Further, a parallel spunlace nonwoven fabric of 60 g / square meter is formed in a band shape formed in a curved shape or in an annular shape, and is formed in a substantially U shape sandwiching the outer peripheral edge portion 21 of the filter portion 2, and the outer peripheral edge portion of the filter portion 2 21 may be welded and joined to the inner wall surface of the filter portion 2.

  In any modification using any of the melt blown nonwoven fabric and the parallel spunlace nonwoven fabric, when inhaling, the face contact portion 3 comes into contact with the face to improve face fit, and air passes through the face contact portion 3 so that dust, Viruses will be collected.

  Further, the face contact portion 3 may be formed in a band shape formed in an annular shape and joined along the entire outer peripheral edge portion 21 of the filter portion 2.

  A second embodiment of the mask of the present invention will be described with reference to the drawings. The same members as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. As shown in FIG. 8, the mask 1 </ b> A has a filter layer 2 </ b> A formed by further adding a melt blown nonwoven fabric or a parallel spunlace nonwoven fabric inside the filter portion 2 having a four-layer structure and joining them by heat welding. Yes. The face contact portion 3A is formed integrally with the added melt blown nonwoven fabric or parallel spunlace nonwoven fabric, and is disposed along the entire outer peripheral edge portion 21A of the filter portion 2A. The outer edge portion 31A along the circumferential direction of the face contact portion 3A is disposed outside the outer peripheral edge portion 21A of the filter portion 2A.

  In the mask 1A of the present embodiment, the face contact portion 3A is formed integrally with the filter portion 2A, and the outer edge portion 31A is formed so as to protrude outward from the outer peripheral edge portion 21A of the filter portion 2A. As shown in (a), during inhalation, the pressure inside the filter portion 2A is lower than the outside, so that the portion of the face contacting portion 3A that protrudes outside the outer peripheral edge portion 21A of the filter portion 2A is in close contact with the face. Therefore, the face fitting property is improved, and the suction of air from the outer peripheral edge portion 21A of the filter portion 2A of the mask 1A can be prevented. And since almost the whole intake is performed through the filter part 2A, dust, viruses, etc. floating in the atmosphere can be collected by the filter part 2A so as not to be sucked. Further, as shown in FIG. 7 (b), when exhaling, the pressure inside the filter unit 2A becomes higher than the outside, so that the contact between the face part 3A and the face weakens, and the face part 3A and the face Thus, air can be discharged from other than the gap, that is, other than the filter portion 2A, and the exhaustability at the time of expiration can be enhanced. Further, moisture absorption due to exhalation of the filter unit 2A can be prevented. Therefore, since it does not become difficult to breathe, it can be worn for a long time.

  Further, since the face contact portion 3A is formed of a melt blown nonwoven fabric or a parallel spun lace nonwoven fabric during inhalation, the face contact portion is brought into contact with the face to improve face fit, and air passes through the face contact portion 3A so that dust, viruses Etc. will be collected. By forming the face contact portion 3A integrally with the melt blown nonwoven fabric or parallel spun lace nonwoven fabric added to one layer, the formation of the filter portion 2A and the joining of the face contact portion 3A can be performed in one step, thereby reducing the manufacturing time. be able to.

  Table 1 shows the results of a comparative inspection of the intrusion rate of outside air during inhalation when the face contact portion 3 or 3A is formed of a melt blown nonwoven fabric and a spunlace nonwoven fabric. When using spunlace nonwoven fabric compared to the existing product, the intrusion rate of outside air during intake is 4.22% on average, and compared to the existing product as 1, the intrusion prevention performance of outside air is improved by 8.35 times. When used, the intrusion rate of outside air at the time of inhalation becomes 3.67% on average, and when the existing product is compared with 1, it can be seen that the intrusion prevention performance of outside air is improved by 8.56 times.

  In particular, when the face contact portion 3 or 3A is formed of a charged melt blown nonwoven fabric, the collection performance of dust, viruses, etc. is increased by the force of static electricity, so that the intrusion rate of outside air during intake is 1.88% on average, Comparing the existing product as 1, it can be seen that the outside air intrusion prevention performance is improved by 9.26 times.

  Moreover, although the member used for the filter part 2 used the needle punch nonwoven fabric and the melt blown nonwoven fabric, it does not stick to the embodiment mentioned above. Nonwoven fabrics by other manufacturing methods that can collect dust, viruses and the like can be used.

  Further, the face contact portion 3 may be joined to the outer wall surface of the filter portion 2.

DESCRIPTION OF SYMBOLS 1 Mask 2 Filter part 3 Face-contact part 4 Attachment string 7 1st layer 8 2nd layer 9 3rd layer 10 4th layer 21 Outer peripheral edge part 31 Outer edge part

Claims (3)

A filter part formed in a substantially hemispherical shape so as to cover the nose part and the mouth part, a face part provided along the outer peripheral edge part of the filter part, and an attachment string fastened to the filter part, A mask configured with
The face contact portion is formed in a curved shape or annular shape with a flexible member, and the outer edge portion along the bending direction or the circumferential direction is arranged to protrude outward from the outer peripheral edge portion of the filter portion. A mask characterized by being installed.   The mask according to claim 1, wherein the face contact portion is formed of a nonwoven fabric or an elastomer, and is joined to the filter portion.   The face portion is formed in a belt shape, joined to the inner wall surface of the outer peripheral edge portion of the filter portion, and the cross section in the short direction is formed in a substantially U shape sandwiching the outer peripheral edge portion of the filter portion. The mask according to claim 1 or 2.

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