JP3232844U - mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mask capable of suppressing inhalation of a virus, a bacterium, pollen and dust, and suppressing a carrier from scattering the virus and the bacterium with coughing. SOLUTION: An upper edge portion of a mask body 1 is folded inward, and an upper end portion of the mask body 1 is a stack of two sheets, and either the left or right side of a lower end side edge portion 1b of a fabric 1a inside the two layers is stacked. In a state where the fabric 1a inside the two layers is fixed to the inner surface of the lower end side edge 1b of the fabric 1a without being twisted, and the other is twisted to the inner surface of the lower end side edge 1b of the fabric 1a inside the two layers. The twist 2 is formed inside the central portion of the fabric 1a which is fixed and is inside the two layers. When wearing the mask M, not only the two twisted parts completely cover the vicinity of the wearer's nose pillar, but also the back of the two overlapping parts at the upper end of the mask body 1 is a bag-shaped chamber, and when the mask is worn. At least the upper half of the mask body swells in a semi-dome shape. [Selection diagram] Fig. 4

Description

The present invention relates to a mask used for the purpose of suppressing the inhalation of viruses, bacteria, pollen and dust, or suppressing the scattering of viruses and bacteria by a carrier with coughing.

As such a mask, the upper edge and both side edges of the nose hook are fixed to the upper edge and both side edges of the mask body, and the lower edge of the nose hook is not fixed, but is folded back and hung on the nose (for example). , Patent Document 1 and Patent Document 2) and those in which a member made of a strip-shaped elastic material is embedded in the upper end of the mask body in order to fit the shape of the wearer's nose when wearing the mask (for example, Patent Document). There is 3).

Japanese Unexamined Patent Publication No. 2001-161843

Utility Model Registration No. 3188552 Gazette

Utility Model Registration No. 3108880

However, in the masks disclosed in Patent Documents 1 and 2, a gap is likely to occur between the mask body and the wearer's face when the mask is worn, and viruses, bacteria, pollen, and dust are sucked through this gap. Alternatively, carriers are more likely to disperse viruses and bacteria with a cough.

On the other hand, the mask disclosed in Patent Document 3 requires a member made of a strip-shaped elastic material, which not only increases the cost but also requires the work of embedding this member in the mask. It takes time and effort.

In view of the above-mentioned drawbacks of the prior art, the present inventor can suppress the inhalation of viruses, bacteria, pollen and dust very easily by an extremely simple method, or the carrier can disperse the viruses and bacteria with coughing. We have proposed a mask that can suppress the virus (Practical New Design Registration No. 3227579).

The present invention follows this technique and is improved to make the mask more effective.

In the mask of the present invention according to claim 1, the upper edge portion of the mask body is folded inward and the upper end portion of the mask body is overlapped with at least two sheets, and either the left or right side of the lower end side edge portion of the two layers is overlapped. Is fixed to the inner surface of the lower end side edge of the two layers, and the other is fixed in a twisted state on the inner surface of the lower end side edge of the two layers, and a twist is formed inside the central portion of the two layers. It is characterized by being.

In the mask of the present invention according to claim 2, the upper edge portion of the mask body is folded inward and the upper end portion of the mask body is overlapped with at least two sheets, and either the left or right side of the lower end side edge portion of the two layers is overlapped. Is fixed to the inner surface of the lower end side edge of the two layers, and the other is fixed in a twisted state on the inner surface of the lower end side edge of the two layers, and a twist is formed inside the central portion of the two layers. When the mask is worn, the twisted portion is positioned so as to be exposed upward from the upper end portion of the mask body.

In the above case, the upper end of the mask body may be in contact with the cheekbones of both cheeks of the mask wearer at the inner side of the fixing portion of the left and right side edge portions at the lower end side edge portion of the two layers. It is desirable to form two fixing portions on the left and right.

On the other hand, in the mask of the present invention according to claim 4, the lower edge portion of the mask body is folded inward and the lower end portion of the mask body is overlapped with at least two sheets, and either the left or right side of the upper end side edge portion of the two layers is overlapped. One is fixed to the inner surface of the upper end side edge of the two layers, the other is fixed in a twisted state on the inner surface of the upper end side edge of the two layers, and the twist is formed inside the central portion of the two layers. It is characterized by being formed.

In the mask of the present invention according to claim 5, the lower edge portion of the mask body is folded inward and the lower end portion of the mask body is overlapped with at least two sheets, and either the left or right side of the upper end side edge portion of the two layers is overlapped. Is fixed to the inner surface of the upper end side edge of the two layers, and the other is fixed in a twisted state on the inner surface of the upper end side edge of the two layers, and a twist is formed inside the central portion of the two layers. When the mask is worn, the twisted portion is positioned so as to be exposed downward from the lower end of the mask body.

In the above case, it is possible to face or contact the vicinity of the jawbones on both sides of the chin of the mask wearer, which is inside the fixing portion of the left and right side edge portions at the upper end side edge portion of the two layers of the lower end portion of the mask body. It is desirable to form two fixing portions on the left and right.

According to the device according to claim 1, since a twist is formed inside the central portion of the two layers of the upper end of the mask body, when the mask body is pulled to both the left and right sides when the mask is worn. If both the left and right sides slightly above the twisted part are pulled, that part will be in close contact with the part from the wearer's nose column to the cheek, and the twisted part will only completely cover the vicinity of the wearer's nose column. Instead, the back of the double-layered portion at the upper end of the mask body is a bag-shaped chamber, and at least the upper half of the mask body swells in a semi-dome shape when the mask is worn. As a result, when wearing a mask, the inhalation of viruses, bacteria, pollen, and dust can be suppressed, or the carrier can suppress the scattering of viruses and bacteria with coughing. It has the effect of being able to be provided easily and inexpensively.

In particular, according to the device according to claim 1, the back of the double-layered portion at the upper end of the mask body is a bag-shaped chamber, and the breath exhaled by the mask wearer collects in the chamber when the mask is worn. Therefore, it is possible not only to prevent the exhaled breath of the mask wearer from leaking out from the upper end of the mask, but also to make it even more difficult to fog even when wearing glasses while wearing the mask. it can.

As in the invention according to claim 2, when the mask is worn, the twisted portion formed inside the central portion of the upper edge portion of the mask body is positioned so as to be exposed upward from the upper end portion of the mask body. Since this twisted part covers the vicinity of the wearer's nasal column and the upper part in the vicinity thereof more completely, the inhalation of viruses, bacteria, pollen, and dust from the part is further suppressed, or the carrier It is possible to further suppress the scattering of viruses and bacteria along with coughing.

According to the device according to claim 3, the wearer has two left and right fixing portions located slightly inside the fixing portions of the left and right side edge portions at the lower end side edge portion of the upper end portion of the mask body. Since it faces and contacts the cheekbones of the cheeks and adheres to the site, the inhalation of viruses, bacteria, pollen, and dust from the part is further suppressed, or the carrier can disperse the viruses and bacteria with coughing. Further, it has an effect that a mask that can be suppressed can be provided extremely easily and inexpensively by an extremely simple method.

According to the device according to claim 4, since a twist is formed inside the central portion of the two layers of the lower end of the mask body, when the mask body is pulled to both the left and right sides when the mask is worn. Since the left and right side portions slightly below the twisted portion are pulled, the portion is in close contact with the portion extending to both sides of the wearer's chin, and the twisted portion not only completely covers the vicinity of the wearer's lower jaw. The back of the double-layered portion at the lower end of the mask body is a bag-shaped chamber, and at least the lower half of the mask body swells in a semi-dome shape when the mask is worn. As a result, when wearing a mask, the inhalation of viruses, bacteria, pollen, and dust can be suppressed, or the carrier can suppress the scattering of viruses and bacteria with coughing. It has the effect of being able to be provided easily and inexpensively.

In particular, according to the device according to claim 4, the back of the double-layered portion at the lower end of the mask body is a bag-shaped chamber, and the breath exhaled by the mask wearer collects in the chamber when the mask is worn. Therefore, it is possible to prevent the exhaled breath of the mask wearer from leaking out from the lower end of the mask.

As in the invention according to claim 5, when the mask is worn, the twisted portion formed inside the central portion of the lower edge portion of the mask body is positioned so as to be exposed downward from the lower edge portion of the mask body. In addition, since this twisted part covers the vicinity of the wearer's lower jaw and the vicinity of the inner part more completely, the inhalation of viruses, bacteria, pollen, and dust from the part is further suppressed, or the carrier coughs. At the same time, it is possible to further suppress the scattering of viruses and bacteria.

According to the device according to claim 6, the wearer's chin has two left and right fixing portions located slightly inside the fixing portions of the left and right side edge portions in the upper end side edge portion of the two layers of the lower end portion of the mask body. Since it faces and abuts near the jawbones on both sides and adheres to that part, the inhalation of viruses, bacteria, pollen, and dust from that part is further suppressed, or the carrier can disperse the virus and bacteria with coughing. Further, it has an effect that a mask that can be suppressed can be provided extremely easily and inexpensively by an extremely simple method.

The most basic example of the embodiment of the mask according to the present invention is shown, and is a schematic view of the mask viewed from the side facing / contacting the wearer's face. FIG. 5 is a schematic view showing that a part of the mask body is pulled by pulling the mask to the left and right sides when the mask shown in FIG. 1 is worn. It is an enlarged schematic end view showing the folded state of both end portions of the twist formed inside the central portion of the two layers of the upper end portion and the lower end portion of the mask body, and (a) is the line (a)-(a) of FIG. (B) shows the case along the line (b)-(b) in FIG. 1, respectively. An example of the case where the mask shown in FIG. 1 is worn is a schematic perspective view seen from the outer surface side of the mask. FIG. 5 is a schematic perspective view illustrating a case where a twisted portion formed inside a central portion of two layers of the upper end portion of the mask body is positioned so as to be exposed upward from the upper end portion of the mask body.

An example of an embodiment of the present invention will be described in detail with reference to the drawings. Figure 1 is a schematic diagram showing a most basic example of embodiment of the mask according to the present invention, showing a state viewed from the face-side abutting the face w ₅ of the wearer W. In this specification, the inner side of the mask body 1 and the inner surface refers to a facial w ₅ to face-contact with the side of the wearer W, outside of the mask body 1, the outer surface and the facial w ₅ of the wearer W It shall mean the opposite side that does not face or contact with.

In the present invention, the upper edge portion of the mask body 1 is folded inward, and the upper end portion of the mask body 1 is at least two layers as shown in FIGS. 3 (a) and 3 (b). One of the left and right sides of the lower end side edge 1b of the inner fabric 1a is fixed to the inner surface of the lower end side edge 1b of the fabric 1a inside the two layers without being twisted, and the other is inside the two layers. The dough 1a is fixed to the inner surface of the lower end side edge portion 1b in a twisted state, and the twist 2 is formed inside the central portion of the dough 1a inside the two layers. It should be said that one of the gist of the present invention is that the twist 2 is formed inside the central portion of the fabric 1a inside the two layers.

Since the twist 2 is formed inside the central portion of the fabric 1a inside the two layers, when the mask M is worn, the mask body 1 is pulled to both the left and right sides as shown by the arrows in FIG. At that time, the left and right side portions slightly above the two twisted portions are pulled, and the portion 1c shown by the one-point chain line in the figure is dented. When the mask M is worn, the dented 1c portion is the wearer W as shown in FIG. _{Not only does the two twisted parts completely cover the area around the wearer's nose pillar w 1} while being in close contact with the part from the nose pillar w ₁ to the cheek w ₂ , but also the back of the two overlapping parts at the upper end of the mask body 1. Is a bag-shaped chamber 1d, and when the mask M is worn, at least the upper half of the mask body 1 swells in a semi-dome shape. As a result, the inhalation of viruses, bacteria, pollen, and dust can be suppressed, or the carrier can suppress the scattering of viruses and bacteria with coughing.

In particular, the back of the double-layered portion at the upper end of the mask body 1 is a bag-shaped chamber 1d, and when the mask M is worn, the breath exhaled by the wearer W of the mask M collects in the chamber 1d. Not only can the breath exhaled by the wearer W not leak out from the upper end of the mask M, but it can also be made less likely to fog even when wearing glasses while wearing the mask M. ..

In the case illustrated here, at both ends of the upper twist 2 in FIG. 1, at the point Pa which is the turning point at the left end of the twist 2, two sheets are overlapped as shown in the upper side of FIG. 3 (a). The left lower end side edge portion 1b of the fabric 1a on the inside of the fabric 1a is folded outward (upward) by a certain width and fixed to the fabric 1a on the inside of the two layers in a state of being stacked in two layers. On the other hand, at the point Pb, which is the turning point at the right end of the upper twist 2 in FIG. 1, the right lower end side edge 1b of the fabric 1a inside the two layers is constant, as shown in the upper side of FIG. 3 (b). The width is folded inward (upward), and the two layers are fixed to the fabric 1a inside the two layers.
Then, the twist 2 is formed between the point Pa and the point Pb.

In the mask M shown in FIGS. 1 and 2, the left side of the lower end side edge portion 1b of the fabric 1a inside the two layers is screwed onto the inner surface of the lower end side edge portion 1b of the fabric 1a inside the two layers. In order to fix the fabric 1a in a non-layered state, the left lower end side edge 1b of the fabric 1a inside the two layers is folded back inward by a certain width, and the fabric 1a inside the two layers is folded inward. Although the case where the dough is fixed to the above is illustrated, the left lower end side edge portion 1b of the dough 1a inside the two layers may be directly fixed to the inner surface of the dough 1e on the front side.

Further, in FIGS. 1 and 2, the left side of the lower end side edge portion 1b of the fabric 1a inside the two layers is not twisted by the inner surface of the lower end side edge portion 1b of the fabric 1a inside the two layers. It is fixed, that is, the right side of the lower end side edge 1b of the fabric 1a inside the two layers is fixed in a twisted state on the inner surface of the lower end side edge 1b of the fabric 1a inside the two layers. Although the case where this is the case is illustrated, the fixing state may be the opposite of this.

That is, although not shown, the right side of the lower end side edge 1b of the fabric 1a inside the two layers is fixed to the inner surface of the lower end side edge 1b of the fabric 1a inside the two layers without being twisted. On the other hand, that is, even if the left side of the lower end side edge 1b of the fabric 1a inside the two layers is fixed to the inner surface of the lower end side edge 1b of the fabric 1a inside the two layers in a twisted state. good.
Even in this case, the same effect as described above can be exhibited except that the directions of the right side and the left side in the case described above are different.

In the mask M shown in FIGS. 1 and 2, the upper edge portion of the mask body 1 is folded inward and at least two upper end portions of the mask body 1 are overlapped, and the upper edge portion thereof is a sewing machine over the entire width. It is fixed with a thread. Further, the left and right side edges of the mask M are also fixed with sewing threads.
When the mask body 1 is made of non-woven fabric, the left and right side edges of the mask M can be fixed by heat welding.

In the mask M illustrated here, as shown in FIG. 5, when the mask M is worn, two twisted portions formed inside the central portion of the upper edge portion of the mask body 1 are moved upward from the upper end portion of the mask body 1. It can also be used by positioning it so that it is exposed to.
In this case, the two twisted portions _{completely cover the vicinity of the nose column w 1} of the wearer W of the mask M and the upper portion in the vicinity thereof, so that viruses, bacteria, pollen, etc. from the portions are covered. The inhalation of dust can be further suppressed, or the carrier can further suppress the scattering of viruses and bacteria with coughing.

Further, in the mask M illustrated in FIGS. 1 and 2, the upper edge portion of the mask main body 1 is located slightly inside the left and right side end portions of the mask main body 1, and the drawing reference numerals 3 are shown in FIGS. 1 and 2. As shown in 3, two fixing portions are formed on the left and right for further fixing the overlapping portion of the two inner and outer fabrics to the mask main body 1.
These two fixing portions 3, 3 on the left and right are formed by adhering to the mask body 1 with a sewing thread, and the distance between the two fixing portions 3, 3 is when the wearer W wears the mask M. It is preferable that the intervals are such that both anchoring portions 3 and 3 come near _{both cheeks w 2} and w ₂ of the wearer W and cheek _{bones w 3} and w _3.

When the wearer W wears the mask M, the two left and right fixing portions 3 and 3 located slightly inside the left and right side ends of the mask body 1 are the two cheeks w ₂ and w ₂ of the wearer W. zygomatic w _3, w ₃ facing-contact with the vicinity, because it adheres to the site, the virus from the portion, bacteria, pollen, suction of dust is further suppressed, or carriers is the viruses and bacteria with coughing It is possible to further suppress the scattering.

In the mask M illustrated here, not only the upper end portion of the mask main body 1 but also the lower end portion thereof is subjected to the same special ingenuity and improvement as in the case described in the upper end portion. That is, in the mask M shown in FIGS. 1 and 2, the lower edge portion of the mask main body 1 is folded inward and the lower end portion of the mask main body 1 is overlapped with at least two sheets as shown in FIGS. 1 and 2. Either the left or right side of the upper end side edge 1g of the fabric 1f inside the two layers is fixed to the inner surface of the upper end side edge 1g of the fabric 1f inside the two layers without being twisted. One side is fixed in a twisted state on the inner surface of the upper end side edge portion 1g of the fabric 1f inside the two layers, and the twist 4 is formed inside the central portion of the fabric 1f inside the two layers. It should be said that one of the gist of the present invention is that the twist 4 is formed inside the central portion of the fabric 1f inside the two layers.

Since the twist 4 is formed inside the central portion of the fabric 1f inside the two layers, when the mask M is worn, the mask body 1 is pulled to both the left and right sides as shown by the arrows in FIG. When the left and right side portions slightly below the four twisted portions are pulled, the portion 1h indicated by the alternate long and short dash line in the figure is dented, and when the mask M is worn, the dented 1h portion is the wearer W as shown in FIG. together in close contact with the recess of the left and right sides of the jaw w _6, wherein the twist 4 parts not only covers comfortably around the lower jaw w ₄ of the wearer W, the two-ply portion of the mask body 1 lower portion back the bag-shaped In the chamber 1i, at least the lower half of the mask body 1 swells in a semi-dome shape when the mask M is worn. As a result, the inhalation of viruses, bacteria, pollen, and dust can be suppressed, or the carrier can suppress the scattering of viruses and bacteria with coughing.

In particular, the back of the double-layered portion at the lower end of the mask body 1 is a bag-shaped chamber 1i, and when the mask M is worn, the breath exhaled by the wearer W of the mask M collects in the chamber 1i. It is possible to prevent the exhaled breath of the wearer W from leaking out from the lower end of the mask M.

In the case illustrated here, at both ends of the lower twist 4 in FIG. 1, at the point Pa'which is the turning point at the left end of the twist 4, as shown in the lower side of FIG. 3 (a), The left upper end side edge portion 1g of the fabric 1f inside the two layers is folded back inward (downward) by a certain width, and is fixed to the fabric 1f inside the two layers in a state of being two layers. On the other hand, at the point Pb', which is the turning point of the right end of the lower twist 2 in FIG. 1, as shown in the lower side of FIG. 3 (b), the right upper end side edge portion of the fabric 1f inside the two layers. 1 g is folded outward (downward) by a certain width, and is fixed to the fabric 1f inside the two layers in a state where the two layers are stacked.
Then, the twist 4 is formed between the point Pa'and the point Pb'.

Incidentally, FIG. 3 (a), in (b), the dough inside the two-ply in vertical width L ₁ and the mask body 1 the lower end of the dough 1a inside the two-ply in the mask body 1 the upper end 1f The case where the vertical width L ₂ of the above is the same width is illustrated. Originally, the dough 1a on the inside of the two layers at the upper end and the dough 1e on the front side, and the dough 1f inside the two layers at the lower end and the dough 1e on the front side are both. It is normal for them to overlap, but in order to make the bag-shaped chambers 1d and 1i formed between them more clearly understandable, the fabric 1a inside the two layers at the upper end is It is assumed that the dough 1e on the front side has a bag-shaped chamber 1d at an angle α, and the dough 1f inside the two layers at the lower end has a bag-like shape at an angle β with respect to the dough 1e on the front side. It is assumed that the chamber 1i is provided, and further, the angle α and the angle β are exemplified as having the same angle.

Although not shown here, when the mask M is worn, the four twisted portions formed inside the central portion of the lower edge portion of the mask body 1 are positioned so as to be exposed downward from the lower end portion of the mask body 1. You can also do it.
In this case, the four twisted portions _{completely cover the vicinity of the lower jaw w 4} of the wearer W of the mask M and the vicinity of the inner portion thereof, so that viruses, bacteria, pollen, and dust are sucked in from the portions. Can be further suppressed, or the carrier can further suppress the spread of viruses and bacteria with coughing.

Further, in the mask M shown in FIGS. 1 and 2, the lower edge portion of the mask body 1 is slightly inside the left and right side ends of the mask body 1 in exactly the same manner as the fixing portions 3 and 3 in the case of the upper edge portion. However, as shown by reference numerals 5 and 5 in FIGS. 1 and 2, two fixing portions are formed on the left and right for further fixing the overlapping portion of the two inner and outer fabrics to the mask main body 1. ..
These two fixing portions 5, 5 are formed by adhering to the mask body 1 with a sewing thread, and the distance between the two fixing portions 5, 5 is when the wearer W wears the mask M. it is preferable that the interval such that both the fixing unit 5 and 5 come in the vicinity of the jaw w ₆ on both sides of the jaw bone w _7, w ₇ of the wearer W.

When the wearer W is worn by the mask M, the two left and right fixing portions 5 and 5 of the jaw w ₆ on both sides of the wearer W which is located a little inside from the left and right side end portions of the mask body 1 lower edge jawbone w _7, w ₇ facing-contact with the vicinity, because it adheres to the site, the virus from the portion, bacteria, pollen, is further suppressed suction of dust, or scattering the viruses and bacteria carriers along with coughing It is possible to further suppress the causing.

Here, both the upper edge portion and the lower edge portion of the mask body 1 are folded inward, and the upper end portion and the lower end portion of the mask body 1 are both stacked at least two sheets, and inside the two layers. One of the left and right sides of the lower end side edge 1b of a certain fabric 1a is fixed to the inner surface of the lower end side edge 1b of the fabric 1a in a state where it is inside the two layers, and the other is inside the two layers. The dough 1a is fixed to the inner surface of the lower end side edge 1b in a twisted state, and the twist 2 is formed inside the central portion of the dough 1a inside the two layers, and the dough 1f inside the two layers. One of the left and right sides of the upper end side edge 1g is fixed to the inner surface of the upper end side edge 1g of the fabric 1f inside the two layers without being twisted, and the other is fixed to the inner surface of the two layers inside the two layers. An example is shown in which a twist 4 is formed inside the central portion of the fabric 1f inside the two layers, which is fixed in a twisted state on the inner surface of the side edge portion 1g, and when this mask M is worn. As described above, the upper half and the lower half of the mask body 1 swell in a vertically symmetrical semi-dome shape, and as a result, the central portion of the mask body 1 swells in a dome shape as a whole. The above-mentioned effects will be further enhanced.

In the case illustrated here, the fixing states of the left and right left and right end portions of the upper edge portion of the mask body 1 and the lower edge portion of the mask body 1 are symmetrical in the diagonal line of the mask body 1, but only vertically. May be. Even in this case, the same effect as described above can be exhibited.

The mask M shown here has darts (pleats) 6 formed in three upper and lower stages. Therefore, when the mask M is worn, the mask body 1 becomes more three-dimensional, and at least the parts of the wearer W from the nose column w ₁ to both cheeks w ₂ , w ₂ and cheek bone w ₃ are completely covered. Further, since the lower jaw w ₄ of the wearer W can be completely covered, the above-mentioned effect can be further exerted.

The mask body 1 can be made of a non-woven fabric, cloth, cloth or gauze, but if a highly breathable material is used, it is particularly advantageous for use in the summer. The present invention can also be applied to the case where the mask body 1 is made of other materials such as carbon fiber and quilt.
When the mask is made of non-woven fabric, another cloth made of non-woven fabric is superposed on the portion in order to shape or reinforce the portion where the twists 2 and 4 are formed. You can also do it.

In other drawings, reference numeral 7 is an ear strap provided on the left and right ends of the mask body 1. A rubber string or a string having a predetermined width can be used.

M ... Mask, 1 ... Mask body, 1a ... Fabric inside two layers, 1b ... Lower end side edge, 1c ... Upper dent, 1d ... Upper bag-shaped chamber, 1e ... Front fabric, 1f ... Fabric on the inside of two layers, 1g ... upper end side edge, 1h ... lower dent, 1i ... lower bag-shaped chamber, 2 ... upper twist, 3 ... upper fixing part, 4 ... lower side Twist, 5 ... lower anchorage, 6 ... darts (pleats), 7 ... ear strap, W ... wearer, w ₁ ... nose column, w ₂ ... cheek, w ₃ ... cheekbone, w ₄ ... lower jaw, w ₅ ... face, w ₆ ... jaw, w ₇ ... jawbone.

In the case illustrated here, at both ends of the lower twist 4 in FIG. 1, at the point Pa'which is the turning point at the left end of the twist 4, as shown in the lower side of FIG. 3 (a), The left upper end side edge portion 1g of the fabric 1f inside the two layers is folded back inward (downward) by a certain width, and is fixed to the fabric 1f inside the two layers in a state of being two layers. On the other hand, at the point Pb', which is the turning point of the right end of the lower twist 4 in FIG. 1, as shown in the lower side of FIG. 3 (b), the right upper end side edge portion of the fabric 1f inside the two layers. 1 g is folded outward (downward) by a certain width, and is fixed to the fabric 1f inside the two layers in a state where the two layers are stacked.
Then, the twist 4 is formed between the point Pa'and the point Pb'.

Claims (6)

The upper edge of the mask body is folded inward so that at least two upper ends of the mask body are stacked, and either the left or right side of the lower end side edge of the two layers is the inner surface of the lower end side edge of the two layers. A mask characterized in that the other is fixed in a twisted state on the inner surface of the lower end side edge portion of the two layers, and a twist is formed inside the central portion of the two layers. The upper edge of the mask body is folded inward so that at least two upper ends of the mask body are stacked, and either the left or right side of the lower end side edge of the two layers is the inner surface of the lower end side edge of the two layers. The other is fixed in a twisted state on the inner surface of the lower end side edge of the two layers, and a twist is formed inside the central portion of the two layers. When the mask is worn, the twist is formed. A mask characterized in that a portion is positioned so as to be exposed upward from the upper end of the mask body. Left and right fixing parts that are inside the fixing parts of the left and right left and right end edges of the two-layered lower end side edge of the upper end of the mask body and can face and contact the vicinity of the cheekbones of both cheeks of the mask wearer. The mask according to claim 1 or 2, wherein two masks are formed. The lower edge of the mask body is folded inward so that at least two lower ends of the mask body are stacked, and either the left or right side of the upper end side edge of the two layers is the inner surface of the upper end side edge of the two layers. A mask characterized in that the other is fixed in a twisted state on the inner surface of the upper end side edge portion of the two layers, and a twist is formed inside the central portion of the two layers. The lower edge of the mask body is folded inward and the lower end of the mask body is made up of at least two layers, and either the left or right side of the upper end side edge of the two layers is the inner surface of the upper end side edge of the two layers. The other is fixed in a twisted state on the inner surface of the upper end side edge of the two layers, and a twist is formed inside the central portion of the two layers. When the mask is worn, the twist is formed. A mask characterized in that the part is positioned so as to be exposed downward from the lower end of the mask body. Left and right fixing portions that are inside the fixing portion of the left and right left and right end edges of the two-layered upper end side edge of the lower end of the mask body and can face and contact the vicinity of the jawbones on both sides of the chin of the mask wearer. The mask according to claim 4 or 5, wherein two masks are formed.

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