JP2020050996A - Face mask - Google Patents

Abstract

To provide a face mask that properly prevents eye glasses from being fogged due to breathing even when worn for long hours.SOLUTION: The face mask includes: a rectangular mask main body 11; a cushioning member 12 that is provided on the upper part of the mask main body 11 along the width of the mask main body 11; and an upper sheet member 13 in a form of a sheet that is provided approximately parallel to the cushioning member 12 and under the cushioning part. A shape-keeping member 12b that is deformable by applied force thereto and keeps the deformed condition is provided in the cushioning member 12 along the width of the mask main body 11. The upper sheet member 13 has an upper end and both ends anchored to the mask main body 11, and a bottom end formed to be a free end. The upper sheet member 13 is provided so that a space 10h is formed along the width direction of the mask main body 11 between the upper end of the upper sheet member 13 and the bottom end of the cushioning member 12, thereby properly preventing the eyeglasses from being fogged due to breathing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mask. More specifically, the present invention relates to a mask worn when wearing glasses.

  In general, when a mask is worn to prevent a cold or to prevent hay fever, a gap is easily formed between the mask and the cheeks on both sides of the nose when the mask is worn. When a person wearing spectacles wears such a mask, there is a problem that the spectacles are fogged by the exhaled air leaking from the gap. For this reason, a mask provided with a so-called nose fitter, which can be deformed and retain its shape, on the upper part of the mask body is commercially available as a mask for spectacle wearers. It is possible to close the gap to some extent by fitting the upper part of the mask body to the shape of the face such as the shape of the nose when wearing it, but the nose fitter alone is not enough to close the gap.

  Accordingly, various masks have been proposed for preventing spectacles from fogging even when the mask is mounted (for example, Patent Documents 1 to 7).

Patent Literature 1 discloses a mask in which a sponge-like cushioning material having a substantially triangular cross section is provided along the width direction of the mask on the upper portion of the mask body. A recess for accommodating the nose is formed. For this reason, it is described that if the mask of Patent Literature 1 is worn, the inner surface of the cushioning material can be brought into close contact with the face, so that the glasses can be prevented from fogging due to exhalation.
Patent Documents 2 to 7 disclose a mask in which a sheet member is provided on an upper portion of a mask body, and the lower end of the sheet member is a free end. For this reason, in these documents, exhaled air emitted from a person at the time of wearing a mask is guided between the sheet member and the mask body, so that the exhaled air leaks from a gap formed between the upper portion of the mask and the face. Is described.

JP 2008-148984 A JP-B-57-39777 JP-A-50-78181 Japanese Patent No. 5463481 JP 2009-66382 A JP 2013-75130 A JP 2007-61585 A

However, in the mask of Patent Document 1, since there is an individual difference in the face shape such as the height of the nose of a person, if a person having a shape that does not conform to the cushioning material of the mask of Patent Document 1 is worn, the cushioning material and the face become The gap between the mask body and the face is formed due to a decrease in the adhesiveness of the mask, and there is a problem that the exhaled air leaks from the gap and the fogging of the glasses cannot be properly prevented.
Further, in the masks of Patent Documents 2 to 7, there is a problem that the expiration induced between the sheet member and the mask main body increases the internal pressure of the upper portion of the mask, and the exhaled air gradually leaks to the outside after wearing, and the glasses become fogged. Has occurred.

  In view of the above circumstances, an object of the present invention is to provide a mask that can appropriately prevent fogging of eyeglasses even when worn for a long time.

A mask according to a first aspect of the present invention includes a mask body having a rectangular shape, a cushion member provided on an upper portion of the mask body along a width direction of the mask body, and substantially parallel to the cushion member and below the cushion portion. And a sheet-shaped upper sheet member provided, wherein a shape holding member capable of being deformed and holding the deformed state by applying a force along the width direction of the mask body is provided in the cushion member. The upper sheet member is formed such that an upper end and both ends are fixed to the mask body and a lower end is a free end, and the upper sheet member is an upper end of the upper sheet member. A gap is formed between the portion and the lower end of the cushion member along the width direction of the mask body.
The mask of the second invention is characterized in that, in the first invention, the upper sheet member is made of urethane resin and has a thickness of 3 mm or less.
In the mask of the third invention, in the first invention or the second invention, the gap formed between the upper end of the upper sheet member and the lower end of the cushion member is 2 mm or more. It is characterized by being provided as follows.
A mask according to a fourth aspect of the present invention is the mask according to the first, second or third aspect, wherein a sheet-like lower sheet member provided along a width direction of the mask body is provided below the mask body. The lower sheet member is characterized in that a lower end and both ends are fixed to the mask body, and an upper end is formed as a free end.
The mask of the fifth invention is characterized in that in the first invention, the second invention, the third invention or the fourth invention, the lower sheet member is a nonwoven fabric.

According to the first aspect, since the gap is formed between the upper sheet member and the cushion member, it is possible to suppress a pressure difference between the inside and the outside of the mask due to exhalation in a state where the mask is mounted. For this reason, in a state where the mask is worn, it is possible to maintain the adhesion between the cushion member of the mask and the face of the wearer, so that it is possible to appropriately prevent clouding of the glasses caused by exhalation leaking from the top of the mask. it can.
According to the second aspect of the invention, since the upper sheet member is formed so as to easily allow exhalation to pass, the pressure difference between the inside and the outside of the mask when the mask is worn can be more appropriately suppressed. Become. In addition, since the upper sheet member is made of urethane resin and has a predetermined thickness, it is possible to appropriately remove moisture contained in the exhaled breath, so that even if the exhaled breath leaks upward from the upper portion of the mask, the eyeglasses become cloudy. Can be appropriately prevented.
According to the third aspect, the adhesion between the cushion member of the mask and the face of the wearer when the mask is worn can be more appropriately maintained.
According to the fourth aspect, since the upper end of the lower sheet member is a free end, a gap formed between the lower part of the mask and the lower part of the face of the wearer can be appropriately closed. Therefore, it is possible to prevent the exhalation from leaking from the lower part of the mask to the outside, and it is also possible to prevent the spectacles from being fogged due to the exhalation.
According to the fifth aspect, the gap formed between the lower part of the mask and the lower part of the face of the wearer can be more appropriately closed.

It is a schematic explanatory view of the mask 10 of this embodiment, (A) is a schematic explanatory view of a plan view seen from the front surface, and (B) is a schematic explanatory view of a plan view seen from the back surface. FIG. 1A is a schematic cross-sectional view taken along the line II-II of FIG. 1A, and an enlarged X diagram and an enlarged Y diagram are main portion enlarged explanatory diagrams in a state where the mask 10 of the present embodiment is mounted. It is a schematic explanatory view of the mounting state of the mask 10 of the present embodiment, (A) is a schematic explanatory view of the situation when the mounting state is viewed from the surface of the mask 10, and (B) is an example of the mask 10 of the present embodiment. FIG. 5 is a schematic explanatory view of a situation when the camera is mounted as viewed from the back. FIG. 3B is a schematic explanatory view of a main part of an example of the mask 10 of the present embodiment of FIG. 3B, FIG. 3A is a schematic explanatory view of an upper part of the mask 10, and FIG. It is.

  The mask according to the present embodiment can prevent the glasses from fogging due to exhalation even when worn for a long time.

(Mask 10 of the present embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the mask 10 of the present embodiment has a mask body 11, a cushion member 12 provided on the upper portion of the mask body 11, and a gap between the two below the cushion member 12. The upper sheet member 13 is provided so as to be formed, and can be worn on the face of the wearer by ear straps EL joined to both ends of the mask body 11 (FIG. 3A )reference).
In particular, the mask 10 of the present embodiment is characterized in that an upper sheet member 13 and a concave portion 10h described later are formed between the upper sheet member 13 and the cushion member 12. Hereinafter, each configuration of the mask 10 of the present embodiment will be specifically described. Note that the mask 10 of the present embodiment is simply referred to as a mask 10 below.

(About the mask body 11)
First, the mask body 11 will be described.
The shape, size, and the like of the mask body 11 are not particularly limited as long as the mask body 11 is formed of a woven fabric or a knitted fabric such as a nonwoven fabric or gauze having air permeability. For example, as the shape of the mask main body 11, various shapes such as a rectangular shape having pleats and a three-dimensional shape such as a dome shape can be adopted.

Further, it is preferable that the mask body 11 has a structure in which a plurality of sheets formed of a nonwoven fabric or the like are stacked, because the efficiency of removing pollen, dust, and the like can be improved. For example, as shown in FIG. 2, the mask body 11 can be formed to have a three-layer structure including front and back layers 11a and 11c and an intermediate layer 11b. The material constituting each layer is not particularly limited, and a known nonwoven fabric or the like can be used.
For example, as the surface layer 11a and the back layer 11c of the mask body 11, a low-density nonwoven fabric (for example, a sheet made of a relatively low nonwoven fabric having an apparent density of about 18 g to 30 g / m2) is used, and as the intermediate layer 11b, a high-density nonwoven fabric is used. (For example, a nonwoven fabric having a higher apparent density than the nonwoven fabric of the surface layer 11a and the back layer 11c, such as a spunbonded nonwoven fabric and a melt probe nonwoven fabric). It is more preferable that the sheet of the intermediate layer 11b is, for example, electrostatically processed and has a function of adsorbing pollen, virus droplets, and the like.

  When the mask body 11 has a laminated structure as described above, the sheets used for each layer can be formed by mechanically joining the peripheral edges. The joining method is not particularly limited, and examples thereof include, but are not limited to, ultrasonic welding (corresponding to the perforated portion in FIG. 1), heat welding, adhesion with an adhesive, sewing, and the like.

  Hereinafter, the case where the shape of the mask body 11 is a rectangular shape having pleats will be described as a representative.

  As shown in FIGS. 1 and 2, the mask body 11 has a rectangular shape in a plan view, and has a pleat formed upward at a substantially central portion in a longitudinal direction of the mask body 11 and a pleat formed downward. Has pleats. For this reason, at the time of wearing, the area of the mask main body 11 can be enlarged by pulling the mask main body 11 in the vertical direction, so that the mask main body 11 can be mounted so as to cover from the nose to the chin of the wearer (see FIG. 3A). ).

  Note that the size of the mask body 11 is not particularly limited, and may be appropriately adjusted according to the subject. For example, in the case of an adult male, the length of the mask body 11 in the width direction (the horizontal direction in FIG. 1) before opening the pleats is about 16 cm to 17 cm, and the vertical direction (the vertical direction in FIG. 1). Can be formed to have a length of about 7 cm to 11 cm, and in the case of an adult woman, the length of the mask body 11 in the width direction (left-right direction in FIG. 1) before opening the pleats Can be formed to have a length of about 14 cm to 15 cm and a length in the vertical direction (vertical direction in FIG. 1) of about 7 cm to 11 cm. For children, the mask body 11 in a state before the pleats are opened. Can be formed such that the length in the width direction is about 12 cm to 13 cm and the length in the vertical direction is about 7 cm to 11 cm.

(About the cushion member 12)
As shown in FIGS. 1 and 2, a cushion member 12 is provided on the upper back surface of the mask body 11 (FIG. 1B shows the back surface of the mask body 11). The cushion member 12 is a member that closes a gap formed between the upper portion of the mask body 11 and the face when the mask 10 is worn on the face. That is, the cushion member 12 is formed so as to protrude outward (that is, the face side) from the back surface of the mask body 11.

  In FIG. 2, the back surface of the mask body 11 refers to a surface located on the right side of the mask body 11, and means a surface located on the face side when the user wears the mask 10. Conversely, the surface of the mask body 11 means a surface located outside when the user wears the mask 10, and in FIG. 2 refers to a surface located on the left side of the mask body 11.

  The size and shape of the cushion member 12 are not particularly limited. For example, as shown in FIG. 1B, the rod-shaped cushion member 12 can be formed along the width direction of the mask body 11. In addition, the size of the rod-shaped cushion member 12 is not particularly limited. For example, the mask body 11 is formed so that the length is substantially the same as or slightly smaller than the length in the width direction of the mask main body 11, and the width direction (the length in the vertical direction of the paper in FIG. 1) is about 3 to 5 mm. be able to.

  As shown in FIGS. 1 and 2, the cushion member 12 includes a cushion portion 12a and a shape holding member 12b provided therein.

The cushion portion 12a of the cushion member 12 is a member that closes a gap formed between the cushion 10 and the face when the mask 10 is worn. The material is preferably a material that can follow the feeling of use or the shape of the face. Not limited.
For example, if a foam made of a polyolefin resin such as polyethylene, a urethane resin, or the like, a molded polyester cotton, a polyester nonwoven fabric, a polyethylene film, or the like is used as the material of the cushion portion 12a, the above functions can be easily exerted.

  The shape holding member 12b of the cushion member 12 is a member that can be deformed when a force is applied, and hold the deformed state when the force is removed. For example, as the shape holding member 12b, a plastically deformable metal wire such as aluminum or iron, a resin member having the above function, or the like can be used, but is not limited thereto.

(About upper sheet member 13)
As shown in FIGS. 1 and 2, a sheet-like upper sheet member 13 is provided below the cushion member 12 along the width direction of the mask body 11 so as to be substantially parallel to the cushion member 12. . Specifically, the upper sheet member 13 is provided at a position separated from the lower end of the cushion member 12 toward the lower side of the mask body 11. More specifically, the upper sheet member 13 is positioned below the lower end of the cushion member 12 so that the upper end of the upper sheet member 13 does not contact the lower end of the cushion member 12 when the mask 10 is mounted. It is provided in one.

For example, as shown in FIG. 2, in a state where the upper sheet member 13 is arranged, when the mask body 11 is viewed from the back side, a recess 10 h is formed between the upper sheet member 13 and the cushion member 12. In addition, the upper sheet member 13 can be provided.
The recess 10h formed between the two has an inner surface lower than the outer surface of the cushion member 12 (the surface located on the right side of the paper in FIG. 2) and the outer surface of the upper sheet member 13 (located on the right side of the paper in FIG. 2). Surface). That is, between the upper end of the upper sheet member 13 and the lower end of the cushion member 12, the groove-shaped recess 10h is formed along the width direction of the mask body 11.

  The inner surface of the recess 10h may be formed on the back surface of the mask body 11 (that is, the recess 10h may be formed so that the back surface of the mask body 11 is visible), or the back surface of the mask body 11 may be formed. May be formed of another sheet-shaped member so that is not visually recognized. For example, in the latter case, as shown below, a method of integrally forming the upper sheet member 13 and the cushion portion 12a of the cushion member 12 can be adopted.

For example, a sheet-like member made of urethane resin is used. The length of the sheet member in the width direction is substantially the same as the length of the mask body 11 in the width direction, and the length in the up-down direction is lower when the upper sheet member 13 is disposed from the upper edge of the mask body 11. It is formed so as to have substantially the same length as the length until the edge is located.
First, the shape holding member 12b is arranged near the upper rear surface of the mask body 11 along the width direction of the mask body 11 (see FIG. 1 or 2). Next, the sheet-shaped member is arranged such that the back surface is in contact with the back surface of the mask body 11 with the upper edge of the sheet member aligned with the upper edge of the mask body 11. Then, the upper end and both ends of the sheet-like member are joined to the mask main body 11 by the above-mentioned joining method (for example, ultrasonic welding). Next, the lower end of the shape holding member 12b is similarly joined along the width direction of the mask body 11. The joint at the lower end of the shape holding member 12b is the recess 10h described above.

If the above method is adopted, the cushion member 12 can be formed by the portion surrounded by the joint at the upper end of the sheet-shaped member and the joint at the lower end of the shape holding member 12b, and the shape holding member 12b The upper sheet member 13 can be formed by the joint at the lower end and the joint at both ends of the sheet-shaped member. The inside of the recess 10h formed between the cushion member 12 and the upper sheet member 13 can be formed by the sheet-like member as described above.
By employing the above method, there is obtained an advantage that the cushion portion 12a, the upper sheet member 13, and the recess 10h of the cushion member 12 can be easily formed as described above.

Although the cushion portion 12a and the upper sheet member 13 use the same member, the thickness h1 of the cushion member 12 is larger than the thickness h2 of the upper sheet member 13 by the thickness of the shape holding member 12b. It is formed as follows. For this reason, even if the members having the same thickness are used, the recess 10h can be appropriately and easily formed.
As shown in FIG. 2, the thickness h1 of the cushion member 12 refers to a distance from the back surface of the mask body 11, that is, the face of the back layer 11c of the mask body 11 on the face side. Specifically, it refers to the distance between the face on the face side of the back layer 11c of the mask body 11 and the farthest point of the cushion member 12 in a direction substantially perpendicular to the face. More specifically, it refers to the distance between the highest point of the cushion member 12 and the back surface of the mask body 11 when the surface of the mask body 11 is placed on a horizontal place.

  The recess 10h corresponds to a “gap” formed in the claims between the upper end of the upper sheet member and the lower end of the cushion member along the width direction of the mask body.

The distance W (W in FIG. 2) between the upper end of the upper sheet member 13 and the lower end of the cushion member 12 is such that the upper sheet member 13 and the cushion member 12 do not come into contact with each other when the mask 10 is mounted as described above. The distance is not particularly limited.
For example, when the material of the cushion portion 12a and the upper sheet member 13 is urethane resin, the thickness h1 of the cushion member 12 is 4 mm, and the thickness h2 of the upper sheet member 13 is 2 mm, the mask body 11 of the recess 10h is formed. The vertical distance W (that is, the distance W between the upper end of the upper sheet member 13 and the lower end of the cushion member 12) may be 1 mm or more, preferably 2 mm or more, and more preferably 3 mm or more. I just need.
The distance W between the two is preferably 10 mm or less from the viewpoint of handleability and manufacturing, and is preferably 5 mm or less from the viewpoint of mountability and a pressure difference interference region described later.

  As shown in FIG. 1 or 3, the upper sheet member 13 has an upper end and both ends joined and fixed to the mask body 11, while a lower end (specifically, a lower end edge) is a free end. Is formed. The bonding to the mask main body 11 can be performed by a method similar to the method described above.

  That is, in a state where the upper sheet member 13 is arranged on the back surface of the mask body 11, the inner surface side of the upper sheet member 13 (the surface located on the back surface side of the mask body 11 in FIG. A space 13h that is surrounded by the inner surface of the sheet member 13 and that has an opening facing downward is formed. The opening is formed such that when the mask 10 is mounted on the face and the mask main body 11 is curved, the back surface of the mask main body 11 and the inner surface of the upper sheet member 13 are separated and opened (FIGS. 2 and 3). , FIG. 4). In other words, in this state, a pocket-like space 13h having an opening downward is formed on the inner surface side of the upper sheet member 13.

The thickness h2 of the upper sheet member 13 is not particularly limited as long as it is formed so as to have a degree of air permeability and not to allow the exhaled air guided to the internal space 13h to pass immediately, as described later.
For example, when a urethane resin is used as the material of the upper sheet member 13, the thickness h2 of the upper sheet member 13 is preferably formed to be 0.1 mm or more, more preferably 0.3 mm or more, More preferably, it is 0.5 mm or more. In addition, it is preferably 5 mm or less, more preferably 3 mm or less from the viewpoint of handleability and usability.

  In particular, it is preferable that a protective film (not shown) is attached to the inner surface of the upper sheet member 13. By bonding the protective film to the inner surface of the upper sheet member 13, the thickness h2 of the upper sheet member 13 can be reduced as compared with the case where no protective film is provided, while exhibiting the function of the upper sheet member 13. The advantage is obtained. The material of the protective film is not particularly limited, but a nonwoven fabric can be adopted. By adjusting the apparent density of the nonwoven fabric, it is also possible to adjust the breathability of exhalation, which will be described later.

  With the configuration as described above, if the mask 10 is worn while wearing glasses, it is possible to appropriately prevent the lenses of the glasses from fogging due to exhalation as described below.

  On the back surface of the mask body 11 of the mask 10, a cushion member 12 and an upper sheet member 13 are provided below the cushion member 12, and a recess 10h is formed between the two.

First, as shown in FIGS. 3 and 4, the user deforms the cushion member 12 of the mask 10 so as to conform to his / her nose or the shape of the face on both sides of the nose, and wears the mask 10. The mask 10 can be mounted so that the upper part of the cushion member 12, that is, the cushion portion 12 a of the cushion member 12 is in close contact with the face.
As shown in FIGS. 3 and 4, when the mask 10 is mounted, the back surface of the mask 10 at both ends of the portion where the nose of the user is arranged (in FIG. 3B, the substantially upper center portion of the mask 10). That is, a space 13h that opens downward on the inner surface of the upper sheet member 13 is formed on the back surface located on the face side of the mask body 11.

The space 13h located on the inner surface side of the upper sheet member 13 is a space for guiding and accommodating a user's exhalation into the inside. Specifically, when the user breathes, expiration containing water is taken out, and the expiration which moves upward among the expiration is guided and accommodated in the space 13h of the upper sheet member 13. Accordingly, the exhalation containing water is prevented from moving above the upper sheet member 13.
For this reason, even if the user wears the mask 10 while wearing glasses, the expiration can be prevented from leaking from above the mask 10 and rising toward the eyeglasses. Clouding due to exhalation can be prevented.

  In particular, if the upper sheet member 13 is formed of a material having air permeability and easy to remove moisture, for example, urethane resin, it is possible to appropriately prevent the lens of the glasses from being clouded by the exhalation even if the exhalation leaks. Can be.

  Here, the internal pressure in the mask 10 tends to be slightly higher than the external pressure due to the exhaled air guided into the space 13h of the upper sheet member 13.

A case in which a mask having no recess 10h of the mask 10 is used will be described.
When the internal pressure in the mask increases due to the exhaled air stored in the upper sheet member, a force is applied in a direction in which the mask body is separated from the face, so that a gap is easily formed between the cushion member and the face. In particular, when the mask is worn for a long time, the tendency is remarkable. Then, expiration leaks from a gap formed between the cushion portion of the mask and the face, and a phenomenon occurs in which the glasses of the spectacles become cloudy if they rise upward and reach the lens where the spectacles are present. This phenomenon is unlikely to occur when the mask is mounted, but becomes noticeable as the internal pressure of the mask increases.

  However, in the mask 10, a recess 10 h is formed between the cushion member 12 and the upper sheet member 13. The recess 10h is formed such that the lower end of the cushion member 12 and the upper end of the upper sheet member 13 have a predetermined interval.

  For this reason, even if the internal pressure in the mask 10 increases due to the exhaled air guided into the space 13 h of the upper sheet member 13, the pressure difference from the outside can be reduced by the recess 10. That is, the concave portion 10h formed between the cushion member 12 and the upper sheet member 13 functions as a buffer region for adjusting the internal pressure and the external pressure in the mask 10.

  In addition, when the internal pressure in the mask 10 is increased by the exhalation guided into the space 13h of the upper sheet member 13 and a force is applied in a direction in which the mask main body 11 is separated from the face, the expelled air enters the space 13h of the upper sheet member 13. Although the induced exhalation may leak upward, the exhaled exhalation is captured by the recess 10 and further upward movement is prevented.

  That is, by disposing the upper sheet member 13 below the cushion member 12 so as to form the above-described recessed portion 10, it is possible to suppress an increase in the internal pressure in the mask 10 when the mask 10 is mounted on the mask 10. In addition, it is possible to exhibit the function of double capturing the exhaled breath that is going to leak upward together with the space 13h of the upper sheet member 13.

  Therefore, even when the internal pressure at the time of mounting is increased by the recess 10 formed on the back surface of the mask main body 11, the cushion member 12 of the mask main body 11 keeps the mask 10 in close contact with the face. Since it can be appropriately maintained, it is possible to appropriately prevent the lens of the glasses caused by the exhalation leaking from the upper portion of the mask body 11 of the mask 10 from fogging.

  In particular, if the upper sheet member 13 is formed using a urethane resin so as to have a thickness that allows easy passage of exhalation, the exhaled air guided into the space 13h of the upper sheet member 13 can be released with moisture removed. Become. In this case, it is possible to more appropriately suppress a pressure difference generated between the inside and the outside of the mask 10 when the mask 10 is mounted. Moreover, even if the exhaled air leaks upward from the upper portion of the mask, it is possible to appropriately prevent the glasses from fogging.

As shown in FIG. 2, a shape holding member 15 similar to the shape holding member 12b may be provided along the width direction of the mask body 11 at a substantially central portion in the vertical direction of the mask body 11.
In this case, as shown in FIG. 3, if a force is applied to the shape holding member 15 to form a predetermined shape, a dome-shaped three-dimensional space can be formed on the back side of the mask 10 when the mask is mounted. Then, when the mask 10 is worn, a distance can be formed between the mouth and the back surface of the mask main body 11, so that the user can easily breathe.

  Further, as shown in FIGS. 1 to 4, a sheet-like lower sheet member 14 may be provided below the mask body 11 along the width direction of the mask body 11.

  The lower sheet member 14 has its lower end and both ends joined and fixed to the mask main body 11, and is formed such that its upper end is a free end. Since the upper end of the lower sheet member 14 is a free end, as shown in FIGS. 2, 3B, and 4B, the inner surface of the lower sheet member 14 (see FIG. In (2), a space 14h can be formed between the mask body 11 and the back surface of the mask body 11.

  For this reason, if the mask 10 is mounted so that a part of the lower part of the wearer's face enters the space 14h, the gap formed between the lower part of the mask body 11 and the lower part of the wearer's face can be appropriately adjusted. Can be closed. Then, it is possible to prevent the exhalation from leaking from the lower portion of the mask body 11 of the mask 10 to the outside, and it is also possible to prevent the fogging of the glasses lens caused by the exhalation.

  The material of the lower sheet member 14 of the mask body 11 is not particularly limited. For example, it may be formed of the same material as the upper sheet member 13 or may be formed of a nonwoven fabric or the like constituting the mask body 11. For example, if the lower sheet member 14 is formed of a nonwoven fabric, the lower sheet member 14 can be adhered to follow the shape of the face, so that the gap formed between the lower part of the mask body 11 and the lower part of the face of the wearer can be more appropriately adjusted. Can be closed.

  The mask of the present invention is suitable as a mask worn when wearing glasses.

DESCRIPTION OF SYMBOLS 10 Mask 10h Gap between cushion member and upper sheet member 11 Mask body 12 Cushion member 13 Upper sheet member 14 Lower sheet member

Claims (5)

A rectangular mask body, a cushion member provided on an upper portion of the mask body along a width direction of the mask body, and a sheet-like upper portion provided substantially parallel to the cushion member and below the cushion portion And a sheet member,
In the cushion member,
A shape holding member capable of holding a deformable and deformed state by applying a force is provided along a width direction of the mask body,
The upper sheet member,
The upper end and both ends are fixed to the mask body, and the lower end is formed as a free end,
The upper sheet member,
A mask, wherein a gap is formed between an upper end of the upper sheet member and a lower end of the cushion member along a width direction of the mask body. The upper sheet member,
2. The mask according to claim 1, wherein the material is formed of a urethane resin and has a thickness of 5 mm or less. The upper sheet member,
3. The mask according to claim 1, wherein the gap formed between the upper end of the upper sheet member and the lower end of the cushion member is provided to be 2 mm or more. At the bottom of the mask body,
A sheet-like lower sheet member provided along the width direction of the mask body is provided,
The lower sheet member,
4. The mask according to claim 1, wherein a lower end and both ends are fixed to the mask body, and an upper end is formed as a free end. The mask according to claim 1, 2, 3, or 4, wherein the lower sheet member is a nonwoven fabric.