JP2022053737A - Mask assisting tool - Google Patents

Abstract

To further suppress fogging of spectacles caused by an exhalation when wearing a mask.SOLUTION: A mask assisting tool 20 is attached to a rear face 12 of a mask body 11. The mask assisting tool 20 comprises: a sheet material 30 which is provided between the mask body 11 and a face 1, and contacts the face 1; and a sponge material 40 provided between the sheet material 30 and the mask 11. The sheet material 30 is provided with an opening 50 through which an exhalation E exhaled at least from a nostril part 3a passes. The sponge material 40 is provided along at least an upper edge part 55a of a peripheral edge part 55 of the opening 50. When the mask 10 is worn, a ventilation passage S, through which the exhalation E exhaled via the opening 50 passes forward, is formed between the sheet material 30 and the mask body 11, by a thickness T in a front-rear direction of the sponge material 40.SELECTED DRAWING: Figure 2

Description

The present invention relates to a mask assisting tool.

Masks having an anti-fog function for eyeglasses are known. For example, the mask disclosed in Patent Document 1 is a mask that covers a person's mouth and nose, and has a breathable front cloth, a back cloth provided on the back side of the front cloth, and both sides of the front cloth and the back cloth. It is composed of the provided mounting string and. The front cloth and the back cloth are connected to each other at the upper and lower ends and both side ends. An opening for exhalation is provided near the mouth and nose in the center of the backing cloth. Also, the breathability of the back cloth is smaller than the breathability of the front cloth.

According to such a configuration, when the backing cloth having a small breathability comes into contact with the face, it is possible to prevent the exhaled air from escaping upward and suppress the fogging of the glasses.

Japanese Unexamined Patent Publication No. 2017-61763

However, even when the mask according to Patent Document 1 is used, a part of the exhaled breath discharged from the mouth or nose still escapes upward through a slight gap between the backing cloth and the face. It makes my glasses cloudy. That is, in the mask according to Patent Document 1, the anti-fog effect of eyeglasses is not sufficient, and there is room for improvement.

The present invention has been made in view of these points, and a main object thereof is to further suppress fogging of spectacles due to exhalation when wearing a mask.

The mask assisting tool according to the present invention is a mask assisting tool attached to the rear surface of the mask body, and is a sheet material arranged between the mask body and the face and in contact with the face, and the sheet material and the mask. The sheet material includes a sponge material arranged between the main body and the sheet material, and the sheet material is provided with at least an opening through which exhaled air discharged from the nose canal is passed. It is provided along at least the upper edge portion of the above, and when the mask is worn, the sponge material is discharged between the sheet material and the mask body through the opening due to the thickness of the sponge material in the front-rear direction. An air passage is formed to pass the exhaled air forward.

According to the present invention, it is possible to further suppress fogging of eyeglasses due to exhalation when wearing a mask.

FIG. 1 is a front view of the mask assisting tool according to the embodiment of the present invention as viewed from the front side. FIG. 2 is a side sectional view of the mask assisting tool on line II-II. FIG. 3 is a top sectional view of the mask aid on lines III-III. FIG. 4 is a view corresponding to FIG. 2 in the case where the mask auxiliary tool is attached by shifting it downward with respect to the mask main body. FIG. 5 is a diagram corresponding to FIG. 1 according to another embodiment. FIG. 6 is a diagram corresponding to FIG. 2 according to a comparative example.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of preferred embodiments is merely exemplary and is not intended to limit the invention, its applications or its uses. In the following description, the side of the mask assisting tool facing the face is referred to as the posterior side, and the side of the mask assisting tool facing the face is referred to as the front side.

The mask assisting tool according to the present embodiment is used to suppress fogging of eyeglasses when wearing a mask. As shown in FIGS. 1 to 3, the mask assisting tool 20 is attached to, for example, the rear surface 12 of the main body 11 (hereinafter referred to as “mask main body 11”) of a commercially available disposable mask 10 for home use.

As shown in FIG. 1, ear straps 13 are provided at both left and right ends of the mask body 11. A nose fit 14 is provided at the upper center of the mask body 11. The mask body 11 is made of, for example, a non-woven fabric or a woven fabric.

As shown in FIG. 2, the mask auxiliary tool 20 includes a sheet material 30. The sheet material 30 is arranged between the mask main body 11 and the face 1 and is in contact with the face 1. Here, although the rear surface 32 of the sheet material 30 and the face 1 are in contact with each other, they are not completely in close contact with each other, and there is a slight gap (not shown) between the rear surface 32 of the sheet material 30 and the face 1. Is formed.

The sheet material 30 is preferably formed of, for example, a synthetic paper such as YUPO (registered trademark), a resin sheet, or a laminated material obtained by laminating a resin sheet on one side of paper or a non-woven fabric. The air permeability of the sheet material 30 is preferably as small as possible, and more preferably almost nonexistent. In the present embodiment, the air permeability of the sheet material 30 is lower than the air permeability of the mask body 11. As a method for evaluating air permeability, various known methods can be used.

As shown in FIG. 1, the sheet material 30 has a plurality of cut lines 33 extending in the left-right direction and lining up in the vertical direction at each of the left and right ends so as to easily follow the shape of the face 1, and in the center in the left-right direction. A perforation line 34 extending in the vertical direction is provided. Further, the sheet material 30 is provided with a perforation line 35 extending in a V shape at the upper center so as to easily follow the shape of the nose portion 3 (see FIG. 2).

The upper edge portion 36 of the sheet material 30 is formed in a substantially mountain shape having an apex (upper end portion) 36a in the center in the left-right direction. The upper end portion 36a of the sheet material 30 may be positioned at a position corresponding to the upper end portion of the nose fit 14 in the mask body 11, and may be positioned below or above the upper end portion 36a.

An adhesive 37 is provided on the upper portion of the front surface 31 of the sheet material 30. The adhesive 37 adheres the front surface 31 of the sheet material 30 to the rear surface 12 of the mask body 11, and is composed of, for example, double-sided tape. As shown in FIG. 1, for example, the adhesive 37 extends in the left-right direction, and a part thereof straddles the perforation line 35 extending in a V shape.

As shown in FIG. 1, an opening 50 is provided in the central portion of the sheet material 30. The opening 50 penetrates the sheet material 30 in the thickness direction (front-back direction), and passes at least the exhaled breath E discharged from the nostril portion (outer nostril) 3a. In the present embodiment, the opening 50 passes the exhaled breath E discharged from the mouth portion 2 and the nostril portion 3a. In FIG. 1, the mouth portion 2 and the nostril portion 3a when the mask 10 is worn are shown by a two-dot chain line.

As shown in FIG. 1, the opening 50 includes a main opening 51 located in the center and two sub-openings 54 located on both the left and right sides of the main opening 51, and as a whole, longitudinally and vertically in the left-right direction. It is formed in a substantially rectangular shape with a short direction. The main opening 51 is formed in a substantially circular shape. Each sub-opening 54 is formed in a substantially elliptical shape long in the vertical direction. The main opening 51 and each sub-opening 54 are partitioned by a partition 38 which is a part of the sheet material 30.

The main opening 51 includes an upper main opening 52 and a lower main opening 53 partitioned in the vertical direction by the under-the-nose facing portion 39 which is a part of the sheet material 30. The face-to-face portion 39 under the nose extends in the left-right direction at the intermediate portion of the main opening 51. The subnasal facing portion 39 faces the lower nose 4 (see FIG. 2) between the mouth portion 2 and the nostril portion 3a when the mask 10 is worn.

As shown in FIG. 1, the opening 50, specifically, the lower main opening 53 is provided at a position facing the mouth 2 when the mask 10 is worn. Further, the opening 50, specifically, the upper main opening 52 is provided at a position facing the nostril portion 3a when the mask 10 is worn. Here, since the nostril portion 3a faces downward and diagonally forward, the nostril portion 3a faces the opening 50 even if the nostril portion 3a is located slightly above the opening 50.

The sheet material 30 is preferably formed so as to extend from the upper side of the nostril portion 3a to the lower side of the mouth portion 2 when the mask 10 is worn.

As shown in FIGS. 1 to 3, the mask auxiliary tool 20 includes a sponge material 40. Specifically, the sponge material 40 is preferably formed of a closed-cell foam made of, for example, polyolefin, polyurethane, or the like.

The sponge material 40 is arranged between the sheet material 30 and the mask body 11. The sponge material 40 is provided on the peripheral portion 55 of the opening 50 on the front surface 31 of the sheet material 30. Specifically, the sponge material 40 is provided along at least the upper edge portion 55a of the peripheral edge portion 55 in the opening portion 50, and connects the front surface 31 of the sheet material 30 and the rear surface 12 of the mask body 11.

In the present embodiment, the sponge material 40 is provided along the entire circumference of the peripheral edge portion 55 in the opening 50. The sponge material 40 has a substantially square cylinder shape corresponding to a substantially rectangular shape of the opening 50. The inner peripheral portion 43 of the sponge material 40 partially follows the substantially circular shape of the main opening 51 and the substantially elliptical shape of each sub-opening 54.

The sponge material 40 is adhered to the front surface 31 of the sheet material 30 by the adhesive material 41 and to the rear surface 12 of the mask body 11 by the adhesive material 42. The adhesives 41 and 42 are made of, for example, double-sided tape.

The thickness T of the sponge material 40 in the front-rear direction is preferably 3 mm or more, more preferably 5 mm or more, and further preferably 10 mm or more, particularly in the central portion thereof.

As shown in FIG. 4, the mask assisting tool 20 according to the present embodiment is configured to enable the sponge material 40 to be positioned below the nostril portion 3a when the mask 10 is worn. Specifically, the mask auxiliary tool 20 may be attached by shifting it downward with respect to the mask main body 11, or the entire mask auxiliary tool 20 may be attached downward with respect to the face 1 while the mask auxiliary tool 20 is attached to the mask main body 11. By doing so, the upper portion 44 of the sponge material 40 can be positioned below the nostril portion 3a. In addition, in FIG. 4, the case where the mask assisting tool 20 is attached by shifting it downward with respect to the mask main body 11 is illustrated, but the whole is attached to the face 1 with the mask assisting tool 20 attached to the mask main body 11. You may shift it to the lower side.

As shown in FIG. 2, when the mask 10 is worn, a ventilation path S is formed between the sheet material 30 and the mask main body 11 due to the thickness T of the sponge material 40 in the front-rear direction. The ventilation passage S faces the opening 50 in the sheet material 30, and the exhaled breath E discharged through the opening 50 is passed forward.

As described above, since a slight gap is formed between the rear surface 32 of the sheet material 30 and the face 1, a part of the exhaled breath E discharged from the mouth portion 2 and the nostril portion 3a has the slight gap. Try to escape upwards through. Such an upward flow of the exhaled E E causes the spectacles 5 to become cloudy, and it is necessary to suppress this.

According to the present embodiment, a ventilation path S is formed between the sheet material 30 and the mask main body 11 due to the thickness T of the sponge material 40 in the front-rear direction. Further, the cross-sectional area of the ventilation path S perpendicular to the ventilation direction is overwhelmingly larger than the cross-sectional area of the gap between the sheet material 30 and the face 1 perpendicular to the ventilation direction. Therefore, the air resistance that the exhaled air E discharged from the mouth portion 2 and the nostril portion 3a through the opening 50 passes through the ventilation path S to the front of the mask main body 11 is a slight gap between the sheet material 30 and the face 1. Very small compared to the air resistance that escapes upward through.

As a result, the exhaled breath E discharged from the mouth portion 2 and the nostril portion 3a is promoted to be discharged to the outside of the mask main body 11 through the ventilation passage S, while passing through the gap between the sheet material 30 and the face 1. It is suppressed from coming out upward. That is, most of the exhaled breath E discharged from the mouth portion 2 and the nostril portion 3a is discharged to the outside of the mask body 11 through the ventilation passage S, so that a slight gap between the sheet material 30 and the face 1 is formed. It is possible to prevent the spectacles 5 from becoming cloudy due to the exhaled breath E passing through and exiting upward.

The exhaled breath E exhaled to the outside of the mask body 11 through the ventilation path S escapes forward, which is a direction away from the spectacles 5 attached to the face 1, and hardly reaches the spectacles 5. .. Therefore, the spectacles 5 are hardly fogged by the exhaled air E exhaled to the outside of the mask body 11 through the ventilation path S.

Further, in order to prevent a part of the exhaled breath E from passing upward through the sponge material 40 and between the sheet material 30 and the mask body 11, the sponge material 40 is more breathable than the mask body 11. It is preferably made of a small material, more preferably made of a material having almost no air permeability.

As a result, the flow of the exhaled breath E is controlled in a certain direction, and the fogging of the glasses 5 due to the exhaled breath E when the mask 10 is worn can be further suppressed.

Further, since the air passage S is formed, the flow of the intake air sucked into the mouth portion 2 and the nostril portion 3a becomes smooth, so that the suffocation when wearing the mask 10 is alleviated.

Since the sponge material 40 is provided along the entire circumference of the peripheral edge portion 55 in the opening 50, the ventilation passage S can be formed more reliably.

By setting the thickness T of the sponge material 40 in the front-rear direction to 3 mm or more, the ventilation path S can be more reliably formed between the sheet material 30 and the mask body 11.

Here, FIG. 6 shows a mask assisting tool 120 according to a comparative example. The mask assisting tool 120 does not include the sheet material 30, and is configured such that the sponge material 140 comes into direct contact with the face 1 when the mask 10 is worn.

In this case, if the sponge material 140 is positioned below the nostril portion 3a, the exhaled breath E discharged from the nostril portion 3a moves upward between the mask body 11 and the face 1 on the upper side of the sponge material 140. It will come out.

That is, in order to suppress the fogging of the spectacles 5 due to the exhaled breath E discharged from the nostril portion 3a, when the mask 10 is worn, the nose portion 3 (more specifically) above the nostril portion 3a as shown in FIG. It is necessary to separately provide a sponge material 150 for pressing the portion from the base of the nose to the tip of the nose, or to position the upper portion 144 of the sponge material 140 above the nostril portion 3a to press the nose portion 3. However, when the nose portion 3 is pressed by the sponge materials 140 and 150 located above the nostril portion 3a, the nasal cavity is compressed and it becomes stuffy.

According to the present embodiment, the sheet material 30 is interposed between the sponge material 40 and the face 1. As a result, even if the sponge material 40 is positioned below the nostril portion 3a in order to alleviate the suffocation when the mask 10 is worn, the exhaled breath E discharged from the nostril portion 3a is as shown in FIG. Then, it is guided by the sheet material 30 and flows downward, and is discharged to the ventilation passage S through the opening 50. That is, when the mask 10 is worn, it is possible to suppress the fogging of the spectacles 5 and alleviate the suffocation.

Since the under-nose facing portion 39, which is a part of the sheet material 30, faces the lower part of the nose 4, the mask main body 11 made of, for example, a non-woven fabric or a woven fabric is suppressed from coming into contact with the lower part of the nose 4. As a result, the discomfort caused by the mask body 11 coming into contact with the lower part of the nose 4 can be alleviated.

By providing the sub-opening 54 in addition to the main opening 51, the flow of air intake to the mouth 2 and the nostril 3a becomes smooth.

By replacing only the disposable mask 10, one mask auxiliary tool 20 can be used many times, which is advantageous in terms of cost.

By adjusting the vertical positional relationship between the mask assisting tool 20 and the mask body 11, the sponge material 40 can be easily positioned with respect to the nostril portion 3a at a position suitable for alleviating suffocation. ..

Although the present invention has been described above in terms of preferred embodiments, such a description is not a limitation and, of course, various modifications can be made.

In the present embodiment exemplified above, the sponge material 40 is provided along the entire circumference of the peripheral edge portion 55 at the opening 50, but is not limited thereto. For example, as shown in FIG. 5, the sponge material 40 is provided on the front surface 31 of the sheet material 30 only along the upper edge portion 55a of the peripheral edge portion 55 of the opening 50 and the upper half portion 55b of the left and right side edge portions. You may. That is, the sponge material 40 may be formed in a substantially U-shape, a substantially U-shape, a substantially V-shape, or the like that is open downward, for example. In this case, as shown in FIG. 5, a part of the exhaled breath E discharged to the ventilation passage S through the opening 50 may pass downward or laterally between the sheet material 30 and the mask main body 11. be.

The sponge material 40 does not necessarily have to be provided along the upper half 55b of the left and right side edges of the peripheral edge 55 of the opening 50. Although not shown, the sponge material 40 may be provided along only the upper edge portion 55a at the peripheral edge portion 55 of the opening 50.

In the present embodiment, the opening 50 and the ventilation passage S pass, but are not limited to, the exhaled breath E discharged from the mouth portion 2 and the nostril portion 3a. The opening 50 and the ventilation passage S may pass only the exhaled breath E discharged from the nostril portion 3a without passing through the exhaled air E discharged from the mouth portion 2. Since the fogging of the spectacles 5 is mainly caused by the exhaled breath E discharged from the nostril portion 3a, it is possible to prevent the exhaled breath E discharged from the nostril portion 3a from coming out upward from the gap between the sheet material 30 and the face 1. , The fogging of the glasses 5 can be sufficiently suppressed.

When wearing the mask 10, it may not be possible to position the sponge material 40 below the nostril portion 3a.

The shape of the opening 50 is not limited to a substantially rectangular shape (substantially square shape), and may be, for example, a substantially polygonal shape such as a substantially triangular shape or a substantially pentagonal shape, a substantially circular shape, a substantially elliptical shape, or the like. Further, the opening 50 may be composed of only one opening instead of being composed of a plurality of openings as in the present embodiment. Further, the opening 50 is not limited to the through hole penetrating the central portion of the sheet material 30 as in the present embodiment, and may be, for example, a notch formed in the lower part of the sheet material 30.

For example, gauze or the like may be interposed between the sheet material 30 and the face 1. That is, the sheet material 30 does not have to be in direct contact with the face 1, and may be in contact with the face 1 via inclusions.

In the present embodiment, the foam of closed cells is exemplified as the sponge material 40, but the foam is not limited to this, and a foam of open cells may be used.

After marking the position on the front surface 31 of the sheet material 30 to which the sponge material 40 is to be attached with ink, a mold release agent may be printed on the marked portion. Thereby, when the sponge material 40 is removed from the sheet material 30, the double-sided tape (adhesive material) 41 can be easily peeled off.

The sheet material 30 may be made of water-absorbent paper. As a result, the mask assisting tool 20 can be worn more comfortably even during a sweaty season such as summer.

The upper edge 36 of the sheet material 30 is positioned slightly (about 5 mm) below the nose fit 14 of the mask body 11, and the sheet with a single-sided adhesive (not shown) is placed on the upper edge 36 of the sheet material 30. It may be attached from the rear side so as to overlap with the nose fit 14 of the mask body 11. This makes it possible to further suppress the fogging of the spectacles 5 due to the exhaled breath E, especially when breathing downward.

The cut line 33 may be used as a perforation line. Similarly, the perforations lines 34 and 35 may be used as cut lines.

The mask auxiliary tool 20 may be applied not only as an accessory for attaching to a commercially available mask main body 11, but also as a finished product sold in a state of being attached to the mask main body 11.

In the present embodiment, as the mask 10, a commercially available disposable mask for home use is exemplified, but the mask 10 is not limited thereto. The mask 10 can be applied to various masks such as handmade masks, fashion masks, non-woven masks, woven cloth masks (cloth masks), medical masks, sanitary masks, and the like.

Since the present invention can be applied to a mask assisting tool, it is extremely useful and has high industrial applicability.

E Breath S Ventilation channel T Thickness 1 Face 2 Mouth 3a Nostrils 5 Glasses 10 Mask 11 Mask body 12 Rear 20 Mask aid 30 Sheet material 31 Front 32 Rear 40 Sponge material 50 Opening 55 Peripheral 55a Upper edge 55b Left and right Upper half of both edges

Claims (4)

A mask aid that is attached to the back of the mask body.
A sheet material arranged between the mask body and the face and in contact with the face,
A sponge material arranged between the sheet material and the mask body is provided.
The sheet material is provided with at least an opening through which the exhaled air discharged from the nostril is passed.
The sponge material is provided along at least the upper edge of the peripheral edge of the opening.
When the mask is worn, the thickness of the sponge material in the front-rear direction forms a ventilation path between the sheet material and the mask body to allow the exhaled air discharged through the opening to pass forward. Auxiliary tool. In claim 1,
The sponge material is a mask assisting tool provided along the entire circumference of the peripheral portion. In claim 1 or 2,
A mask auxiliary tool having a thickness of 3 mm or more in the front-rear direction of the sponge material. In any one of claims 1 to 3,
A mask auxiliary tool configured to enable the sponge material to be positioned below the nostril portion when the mask is worn.

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