JP7328732B1 - mask - Google Patents

Abstract

To provide a mask with improved wearing comfort. The mask includes a mask body including a central portion covering the mouth, a pair of lateral extensions extending from opposite sides of the central portion and disposed on both sides of the mouth on the head, and one of the pair of lateral extensions. an elastic retaining frame extending across the central portion toward the other of the pair of lateral extensions and pressing the pair of lateral extensions toward the outer regions.

Description

This disclosure relates to masks .

US Pat. No. 5,300,000 discloses a mask formed by folding a sheet.

International Design Registration No. DM/213458

Here, it is required to improve the wearing comfort of the mask.

Accordingly, an object of the present disclosure is to provide a mask that is more comfortable to wear.

In order to solve the above problems, a mask includes a mask body including a central portion covering the mouth, and a pair of laterally extending portions extending from both sides of the central portion and arranged on both sides of the mouth on the head. , an elastic holding frame extending from one of the pair of laterally extending portions across the central portion toward the other of the pair of laterally extending portions to press the pair of laterally extending portions toward the both outer regions; And prepare.

Also, the mask body includes a central portion covering the mouth, and a pair of laterally extending portions extending from both sides of the central portion and arranged on both sides of the mouth on the head, wherein the central portion is elastic. A central frame holding portion that detachably receives a central frame portion of the holding frame, wherein each of the pair of laterally extending portions detachably receives a pair of mounting portions at both ends of the elastic holding frame. including.

According to the present disclosure, it is possible to provide a mask that is more comfortable to wear.

FIG. 1 is a perspective view showing an unfolded mask according to the embodiment. FIG. 2 is a perspective view showing the same mask. FIG. 3 is a perspective view showing the same mask. FIG. 4 is a plan view showing the folded mask. FIG. 5 is a cross-sectional view taken along line VV of FIG. FIG. 6 is a diagram showing folds of the sheet. FIG. 7 is a diagram showing an example of folds for forming a bag-like portion. FIG. 9 is a perspective view showing a mask according to the modification shown in FIG. 8;

{Embodiment}
<Overall structure>
Masks according to embodiments will be described below. 1 to 3 are perspective views showing the mask 20 deployed. FIG. 4 is a plan view showing the mask 20 folded. FIG. 5 is a cross-sectional view taken along line VV of FIG. FIG. 1 shows a state in which the unfolded mask 20 is attached to the face 10 of a person. 2 is a front perspective view of the unfolded mask 20, and FIG. 3 is a rear perspective view of the unfolded mask 20. FIG. In FIG. 5, the dimensions of each part may be exaggerated for convenience of explanation. It should be noted that the state in which the mask 20 is folded along the creases to be described later and becomes flat is the folded state. The state in which the mask 20 is spread out so that it can be worn on the face 10 is the unfolded state. For convenience of explanation, it is assumed that the mask 20 is worn on the face 10 of a person, and front, back, left, right, up and down with respect to the face 10 may be referred to.

The mask 20 has a mask body 30 and an elastic holding frame 50 .

Mask body 30 includes a central portion 32 and a pair of lateral extensions 36 .

The central portion 32 is the portion that covers the mouth 12 of the face 10 . For example, the central portion 32 is a portion that is wide enough to cover the mouth 12 . Central portion 32 may cover nose 13 of face 10 . In this case, the central portion 32 is a portion that is wide enough to cover the mouth 12 and nose 13 .

A pair of laterally extending portions 36 extend from both sides of the central portion 32 and are portions of the face 10 that are arranged in both outer regions 15 of the mouth 12 . The outer regions 15 of the mouth 12 are the regions between the mouth 12 and the ears 14, eg cheeks.

A material forming the mask body 30 is not particularly limited. The mask body 30 is formed, for example, of a material that is permeable to air but impervious to particles. For example, the mask body 30 is made of non-woven fabric or woven fabric.

The mask body 30 may have a single-layer structure or a laminated structure. When the mask main body 30 has a laminated structure, the number of laminated layers is arbitrary. Particles blocked by the mask body 30 are, for example, suspended matter in the air or droplets from the mouth or nose. Floaters are, for example, viruses, bacteria, pollen or dust.

The elastic holding frame 50 extends from one of the pair of lateral extensions 36 through the central portion 32 toward the other of the pair of lateral extensions 36 . The elastic holding frame 50 presses the pair of lateral extensions 36 toward both outer regions 15 .

The elastic holding frame 50 is made of an elastic material that can return to its original shape. The elastic material may be, for example, a metal wire having spring properties. The springy metal wire is, for example, a springy steel wire or piano wire. The elastic material may be resin.

The elastic holding frame 50 includes a central frame portion 52 arranged across the central portion 32 and a pair of end portions 54 further extending from both ends of the central frame portion 52 .

The central frame portion 52 may be formed, for example, in a curved shape so as to protrude forward. In this case, the central frame portion 52 easily keeps the central portion 32 in the shape of the portion near the mouth 12 so as to bulge outward. For example, the central frame portion 52 is formed to bend in a V shape. The central frame portion 52 may be formed in a trapezoidal or arcuate shape.

A pair of end portions 54 are bent from both end portions of the central frame portion 52 and extend in the same direction. The minimum distance between the pair of ends 54 may be smaller than the width of a typical adult face 10 . For example, the minimum spacing between the pair of ends 54 may be less than 15c.

In this embodiment, the central frame portion 52 is bent in a V shape. The pair of end portions 54 extends from both ends of the central frame portion 52 to the side opposite to the central frame portion 52 . Further, the distance between the pair of end portions 54 becomes narrower toward the rear side of the pair of end portions 54 . The elastic holding frame 50 having such a shape can be formed, for example, by bending a metal wire having spring properties.

The elastic holding frame 50 may be integrated with the mask body 30 . For example, the mask body 30 may have a laminated structure and the elastic holding frame 50 may be arranged between the layers. The elastic holding frame 50 may be detachable from the mask body 30 . In this case, for example, the elastic holding frame 50 can be removed from the dirty mask body 30 and attached to a new mask body 30 . Thereby, the elastic holding frame 50 can be reused for other mask bodies 30 . In this embodiment, an example in which the elastic holding frame 50 is attachable to and detachable from the mask body 30 is mainly described.

For example, the elastic holding frame 50 can be attached to and detached from the mask body 30 by the following configuration.

Each of the pair of lateral extensions 36 has a bag-like portion 37 . The bag-like portion 37 is formed in a bag-like shape that opens toward the central portion 32 . The bag-like portion 37 may have, for example, a shape that gradually narrows toward the distal end side of the lateral extension portion 36 . The bag-like portion 37 opens forward, for example, at a front-rear intermediate portion of the laterally extending portion 36 .

Each of the pair of end portions 54 of the elastic holding frame 50 includes a mounting portion 55 to be inserted into the bag-like portion 37 . In this embodiment, the tip portion of the end portion 54 is the mounting portion 55 . The attachment portion 55 may be a linearly extending portion or a curved portion. For example, the attachment portion 55 may be a portion bent in a V shape or a triangular shape in accordance with the shape of the bag-like portion 37 . If the mounting portion 55 is bent in a V-shape or a triangular shape that matches the shape of the bag-shaped portion 37, the position of the mounting portion 55 in the bag-shaped portion 37 is stable, and the mounting portion 55 is bent into the bag. It is difficult to get out of the shape.

The bag-like portion 37 is an example of an end frame holding portion that detachably receives the mounting portion 55 of the elastic holding frame 50 .

Then, the central frame portion 52 of the elastic holding frame 50 is arranged inside the central portion 32 , and the pair of end portions 54 are inserted into the corresponding bag-shaped portions 37 while elastically deforming the elastic holding frame 50 . . Note that the central frame portion 52 of the elastic holding frame 50 may be arranged inside the central portion 32 after each of the pair of end portions 54 is inserted into the corresponding bag-like portion 37 .

In the attached state, the central frame portion 52 is arranged to cross the inner side of the middle portion in the vertical direction of the central portion 32 . A pair of end portions 54 of the elastic holding frame 50 pass inside the front portions of the pair of laterally extending portions 36 and are inserted into the bag-shaped portion 37 . The tips of the pair of end portions 54 of the elastic holding frame 50 are preferably inserted into the bag-like portion 37 until they reach the back of the bag-like portion 37 .

As described above, with the elastic holding frame 50 attached to the mask body 30 , the central frame portion 52 restricts the rearward movement of the central portion 32 . Since the rearward movement of the central portion 32 is restricted, the bag-shaped portion 37 is restricted from moving to the tip side of the end portion 54 . As a result, the end of the elastic holding frame 50 is prevented from coming off the bag-like portion 37 , and the state where the elastic holding frame 50 is attached to the mask body 30 is maintained.

Contrary to the above, for example, while elastically deforming the elastic holding frame 50, the central frame portion 52 of the elastic holding frame 50 is moved to the upper outer side or the lower outer side of the central portion 32, and each of the pair of end portions 54 is Pull out from inside the corresponding bag-like portion 37 . Note that the central frame portion 52 of the elastic holding frame 50 may be moved to the upper outer side or the lower outer side of the central portion 32 after each of the pair of end portions 54 is removed from the corresponding bag-shaped portion 37 . In any case, elastic deformation of the elastic holding frame 50 and deformation of the mask body 30 are used to attach and detach the elastic holding frame 50 to and from the mask body 30 .

<Shape example of mask body>
For example, the mask main body 30 may be formed into a shape that three-dimensionally covers the mouth 12 by the following configuration.

That is, the sheet 30B for forming the mask body 30 is folded to form a three-dimensional shape. More specifically, as shown in FIG. 6, the sheet 30B is folded such that mountain folds M and valley folds V are alternately arranged in the vertical direction. Here, the folding line that is convex when viewed from the inside, that is, the face 10 side is defined as a mountain fold M, and the folding line that is concave when viewed from the face 10 is defined as a valley fold V. The sheet 30B is folded so that the mountain-folded portions M and the valley-folded portions V are alternately arranged in the vertical direction, so that the upper end and the lower end of the sheet 30B are arranged inside the vertical intermediate portion. Can be curved.

Further, the sheet 30B is folded so as to be mirror-inverted in the middle of the extending direction of the mountain fold M and the valley fold V. As shown in FIG. Mirror inversion refers to the object portion being inverted to the shape seen in the mirror. More specifically, the sheet 30B is folded along a mirror reversal fold line RF that intersects the mountain fold M and the valley fold V so that the peaks and valleys are reversed. In this case, the mountain fold M changes into the valley fold V at the mirror-inverted polygonal line RF, and the valley fold V changes into the mountain fold M at the mirror-inverted polygonal line RF. As a result, the one-side portion of the sheet 30B that is folded along the mirror-reversal fold line RF forms a shape that is mirror-reversed with respect to the virtual portion that is assumed not to be folded along the mirror-reversal fold line RF. 4 shows a portion of the mirror inversion plane R through which the mirror inversion polygonal line RF passes, and FIG. 6 shows the mirror inversion polygonal line RF.

By folding the sheet 30B along the mirror-reversed folding lines RF, the sheet 30B is positioned such that the center portion in the width direction of the center portion 32 is located forward of both end portions in the width direction, and the center portion 32 is formed into a pair of laterally extending portions 36. It can be curved so as to be positioned more anteriorly.

In the mask main body 30, the bag-like portion 37 may be formed as follows.

As described above, the sheet 30B is folded at the mountain fold M and the valley fold V in a bellows shape. The laterally extending portion 36 is similarly folded at the mountain fold M and the valley fold V in a bellows shape. FIG. 7 is a plan view showing the lateral extension 36 folded. In FIG. 5, the folded lateral extension 36 is indicated by a two-dot chain line, and the unfolded lateral extension 36 is indicated by a one-dot chain line.

The lateral extension portion 36 includes a first horizontal valley fold V1 forming a valley when viewed from the inside, a second horizontal valley fold V2a located above or below the first horizontal valley fold V1 and forming a valley when viewed from the inside, V2b. The second lateral valley folds V2a and V2b may be positioned only above or only below the first lateral valley fold V1.

Since the first lateral valley fold V1 forms a valley when viewed from the inside, at least a portion of the first lateral valley fold V1 can be unfolded so as to face the outer region 15 of the mouth 12. See extension 36).

The second horizontal valley fold V2a is folded to form a bag-like portion 37. As shown in FIG. More specifically, the laterally extending portion 36 includes a second lateral valley fold V2a. Here, the laterally extending portion 36 is folded in a bellows shape so as to form a first lateral valley fold V1 and second lateral valley folds V2a and V2b. A portion of the laterally extending portion 36 above the first lateral valley fold V1 is folded upward along the folding line W. As shown in FIG. The fold line W is a line extending from the rear outer corner of the laterally extending portion 36 to the inner portion of the laterally extending portion 36 and away from the rear end to the front side in plan view. By folding back the upper portion of the laterally extending portion 36 along the folding line W, the rear edge of the upper portion of the laterally extending portion 36 is arranged outside the first lateral valley fold portion V1 of the laterally extending portion 36. be. As a result, a bag-like portion 37 surrounded by the second lateral valley-fold V2a and the fold along the fold line W is formed on the extension of the second lateral valley-fold V2a. The bag-shaped portion 37 has a shape that opens forward and gradually narrows toward the rear. A bag-like portion may be formed on the extension of the lower second horizontal valley fold V2b, and the end portion of the elastic holding frame may be inserted into the bag-like portion.

Further, the portion of the laterally extending portion 36 below the first lateral valley fold V1 is folded back along the folding line W to the lower side opposite to the above. As a result, the rear edge of the lower portion of the laterally extending portion 36 is arranged outside the first lateral valley fold V1 of the laterally extending portion 36 . Then, the rear edge of the upper portion of the laterally extending portion 36 and the rear edge of the lower portion of the laterally extending portion 36 are overlapped on the outside of the laterally extending portion 36, and both the rear edges are joined. Bonding may be performed, for example, by heat welding, bonding with an adhesive, sewing, or the like. Thereby, the state in which the laterally extending portion 36 forms the bag-like portion 37 is maintained.

As described above, the attachment portions 55 of the pair of end portions 54 of the elastic holding frame 50 are inserted into and attached to the pair of bag-like portions 37, respectively. If the mounting portion 55 of the end portion 54 of the elastic holding frame 50 is inserted into the bag-like portion 37 , the elastic holding frame 50 is less likely to come into direct contact with the face 10 . Therefore, it is comfortable to wear.

A central frame portion 52 of the elastic holding frame 50 passes inside the central portion 32 . The central frame portion 52 is easily placed in a stable position by passing through the valley fold portion V of the central portion 32 . For example, among the valley folds V formed in the central portion 32, the valley fold V at the center in the width direction and at the center in the front-rear direction is defined as a center positioning valley fold Vm. In the present embodiment, the central positioning valley fold Vm exists in a narrow spot. Then, the central portion of the central frame portion 52 is arranged within the central positioning valley fold portion Vm. As a result, the central portion of the central frame portion 52 is kept stably arranged at the central position of the central portion 32 .

The central positioning valley fold Vm is an example of a central frame holding portion that detachably receives the central frame portion 52 of the elastic holding frame 50 .

<Configuration example for anti-slip>
The mask 20 includes a pair of non-slip members 60 positioned inside each of the pair of lateral extensions 36 and facing the outer region 15 of the mouth 12 . A pair of end portions 54 of the elastic holding frame 50 are positioned to press the pair of non-slip members 60 against the outer regions 15 .

In this embodiment, a non-slip member 60 is attached to a portion of the laterally extending portion 36 facing the outer region 15 in the unfolded state. The non-slip member 60 is made of a material that is less slippery than the mask body 30 on the face 10 . For example, the anti-slip member 60 is made of rubber such as silicone rubber. The non-slip member 60 may be linear, dotted, or planar on a portion of the laterally extending portion 36 that faces the outer region 15 in the unfolded state. In this embodiment, the anti-slip member 60 is formed in a V shape, and is attached to a portion of the laterally extending portion 36 that faces the outer region 15 in the unfolded state in a posture that gradually narrows toward the rear. . The antiskid member 60 may be applied directly to the lateral extension 36 . A non-slip member 60 formed in a predetermined shape may be adhered to the laterally extending portion 36 with an adhesive or the like.

When the elastic holding frame 50 presses the laterally extending portion 36 toward the outer region 15 , the non-slip member 60 is pressed against the outer region 15 . This makes it difficult for the lateral extension 36 to slip off the outer region 15 .

Mask 20 may also include other non-slip members 65 . For example, a non-slip member 65 may be attached to the upper portion of the widthwise center of the central portion 32 of the mask body 30 . Like the anti-slip member 60, the anti-slip member 65 may be a non-slip member made of rubber such as silicone rubber. The non-slip member 65 is in contact with the upper part of the nose 13, so that it is difficult for the user to slide down from the nose 13. - 特許庁

A component may be attached to the upper portion of the central portion 32 in the width direction of the mask body 30 of the mask 20 to keep the upper portion in a shape corresponding to the uneven shape of the nose 13 . The component may be, for example, a linear resin component that is maintained according to the uneven shape of the nose 13 by being bent. Such a component may be a component called a nose wire. This part can reduce the gap between the face 10 and the mask body 30 at the upper part where the nose 13 protrudes. In addition, the mask main body 30 is less likely to slide down because the part rides on the upper part where the nose 13 begins to rise.

<Effects, etc.>
According to the mask 20 configured as described above, the elastic holding frame 50 presses the pair of laterally extending portions 36 toward the both outer regions 15, so that the mask 20 can be held on the face without a string or band attached to the ears or the back of the head. 10 can be installed. Therefore, the wearing comfort of the mask 20 is improved.

Also, if the elastic holding frame 50 is detachable from the mask body 30 , the elastic holding frame 50 can be reused for another mask body 30 . For example, when the mask body 30 becomes dirty, the elastic holding frame 50 can be removed from the mask body 30 and attached to another new mask body 30 . As a result, the cost of using the mask 20 can be reduced. In addition, since the elastic holding frame 50 can be reused, it is possible to save resources.

Each of the pair of laterally extending portions 36 has a bag-like portion 37, and both ends 54 of the elastic holding frame 50 are attached to mounting portions 55 inserted into the respective bag-like portions of the pair of laterally extending portions 36. Therefore, the elastic holding frame 50 can be easily attached to and detached from the mask body 30 . In addition, since the central frame portion 52 of the elastic holding frame 50 passes through the inner side of the central portion 32, the central portion 32 of the mask body 30 is arranged at a position away from the lips of the mouth 12, which also improves the wearing comfort. .

The mask main body 30 is folded so that the mountain folds M and the valley folds V are alternately arranged, and is also folded so that the mountain folds M and the valley folds V are mirror-reversed in the extending direction. It is formed into a curved shape that can be placed from the mouth 12 to both outer regions thereof. Therefore, the sheet 30B can be formed into a three-dimensional shape that covers the mouth 12 and both outer regions 15 thereof. Further, the first horizontal valley fold V1 of the laterally extending portion 36 can be unfolded so that at least a portion thereof faces the outer region 15, and the second horizontal valley fold V2a is folded to form the bag-shaped portion 37. It is Therefore, by utilizing the configuration in which the mountain folds M and the valley folds V are arranged alternately in the laterally extending portion 36, the mask main body 30, not the elastic holding frame 50, is brought into contact with the face 10, while the elastic holding frame A bladder 37 can be formed into which the end 54 of 50 can be inserted.

A pair of non-slip members 60 are arranged inside each of the pair of lateral extensions 36 , and both ends of the elastic holding frame 50 are arranged at positions to press the non-slip members 60 against the outer region 15 . Therefore, the elastic holding frame 50 stably presses the non-slip member 60 against the outer region, and the mask 20 is less likely to fall off the face 10 .

In addition, the central portion 32 of the mask body 30 has a central positioning valley fold Vm that forms a valley when viewed from the inside, and the elastic holding frame 50 is arranged in the central positioning valley fold Vm, so that the central portion Positional deviation of the elastic holding frame 50 with respect to 32 is suppressed.

The mask 20 may be distributed in a form in which the elastic holding frame 50 is attached to the mask body 30 . Only the mask body 30 may be distributed, and only the elastic holding frame 50 may be distributed. If only the mask body 30 is distributed, the elastic holding frame 50 can be easily reused.

{Modification}
In the above embodiment, an example in which the non-slip member 60 is attached to the laterally extending portion 36 has been described. The non-slip member 160 may be supported by the elastic holding frame 150 like the mask 120 according to the modification shown in FIG.

That is, in this modified example, the non-slip member 60 attached to the mask body 30 is omitted. Instead, the elastic retainer frame 150 corresponding to the elastic retainer frame 50 includes a pair of inward extensions 158 . For example, the mounting portion 155 corresponding to the mounting portion 55 is formed in a V shape so as to return to the opening side of the bag-shaped portion 37 . An inner extension portion 158 extends from the mounting portion 155 . The inner extension 158 extends along the surface of the lateral extension 36 facing the outer region 15 . The inner extending portion 158 includes a V-shaped portion extending from the opening of the bag-shaped portion 37 to the rear end of the laterally extending portion 36 and folded back to the opening of the bag-shaped portion 37 .

The inwardly extending portion 158 supports the non-slip member 160 . For example, a non-slip member 160 is formed on the outer peripheral surface of the inner extending portion 158 by dip coating or the like. The configuration for attaching the non-slip member 160 to the inner extending portion 158 is not particularly limited. The shape of the non-slip member 160 is also not particularly limited. For example, the anti-slip member 160 may be molded using the inward extension 158 as an insert. The non-slip member 160 may be adhered to the inner extension 158 with an adhesive or the like. The non-slip member may be formed in a V shape along the shape of the inner extending portion 158, or may be formed in a shape along three sides of a triangle. The non-slip member may be formed in a shape that fills the inside of the inner extension portion 158 and expands in a plate shape, for example, a triangular plate shape.

According to this variant, the inner extension 158 of the elastic retaining frame 150 is pressed against the outer region 15 inside the lateral extension 36 . Since the inner extension 158 supports the non-slip member 160 , the inner extension 158 is less likely to slip relative to the outer region 15 . Therefore, the elastic holding frame 150 does not easily slide off from the outer region 15 , and the mask body 30 to which the elastic holding frame 150 is attached also does not easily fall off the face 10 .

Also, since the mounting portion 155 of the elastic holding frame 150 is inserted into the bag-like portion 37 , the mounting portion 155 presses the bag-like portion 37 toward the outer region 15 . Since the inner extension 158 is arranged between the bag 37 and the outer region 15 , the non-slip member 160 supported by the inner extension 158 is also positioned between the bag 37 and the outer region 15 . placed in Since the non-slip member 160 is non-slippery against both the outer region 15 and the lateral extension 36 , the lateral extension 36 is non-slippery relative to the outer region 15 . Therefore, the laterally extending portion 36 also becomes less likely to slide down from the outer region 15 .

Note that the non-slip member 160 may or may not be attached to the laterally extending portion 36 .

According to this modification, the anti-slip member 60 may be supported by the elastic holding frame 50 . Attaching the anti-slip member 160 to the elastic holding frame 50 may be easier than attaching the anti-slip member 60 to the mask body 30 . For this reason, the work of assembling the non-slip member 160 is facilitated, and there is a possibility that the production cost of the mask 120 can be reduced.

In addition, in the above embodiment and modification, it is not essential that the mask main body 30 is formed by being folded. Even when the mask body 30 is formed by folding, the number of folds is arbitrary, the pattern of mountain folds and valley folds is also arbitrary, and the sizes of mountain folds and valley folds are also arbitrary. . Further, within the same mask, the fold pattern or size of some of the series of mountain folds and valley folds may be different with respect to other mountain folds or valley folds.

It should be noted that the configurations described in the above embodiment and modifications can be appropriately combined as long as they do not contradict each other.

The present disclosure discloses each of the following aspects.

A first aspect includes a mask body including a central portion covering the mouth, a pair of laterally extending portions extending from both sides of the central portion and arranged on both sides of the mouth on the head, and the pair of an elastic holding frame extending from one of the lateral extensions across the central portion toward the other of the pair of lateral extensions to press the pair of lateral extensions toward the outer regions; is a mask.

According to this mask, the mask can be worn without putting bands on the ears or the back of the head, and the wearing comfort of the mask is improved.

A second aspect is the mask according to the first aspect, wherein the elastic holding frame may be detachably attached to the mask body.

In this case, since the elastic holding frame is detachable from the mask body, the elastic holding frame can be reused for other mask bodies.

A third aspect is the mask according to the second aspect, wherein each of the pair of laterally extending portions has a bag-like portion opening toward the central portion, and the central frame portion of the elastic holding frame is Attachment portions at both ends of the elastic holding frame are inserted into the bag-like portions of the pair of laterally extending portions through the inner side of the central portion.

In this case, the elastic holding frame can be easily attached to and detached from the mask body. In addition, since the central portion of the elastic holding frame passes through the inner side of the central portion, the central portion of the mask body is located away from the lips, which also improves the wearing comfort.

A fourth aspect is the mask according to the third aspect, wherein the mask body is folded so that the mountain folds and the valley folds are alternately arranged in the sheet, and the mountain folds and the valley folds are folded. Each of the pair of laterally extending portions is formed into a curved shape that can be arranged from the mouth to both outer regions thereof by folding so as to be mirror-inverted in the middle of the extending direction of the portion. and a second lateral valley-fold portion positioned above or below the first lateral valley-fold and forming a valley when viewed from the inside, wherein the first lateral valley-fold is , at least a portion of which is deployable to face the outer region of the mouth, and the second lateral valley fold is folded to form the bag-like portion.

As a result, the sheet can be formed into a three-dimensional shape that covers the mouth and the outer regions on both sides thereof. Also, the first laterally-folded portion of the laterally extending portion is unfoldable so that at least a portion thereof faces the outer region of the mouth, and the second laterally-folded portion is folded to form a bag-like portion. there is Therefore, by utilizing the configuration in which the mountain folds and the valley folds are alternately arranged in the laterally extending portion, it is possible to form the bag-like portion into which the end portion of the elastic holding frame can be inserted.

Further, a fifth aspect is the mask according to any one of the first to fourth aspects, wherein the mask is arranged inside each of the pair of laterally extending portions so as to face the outer region of the mouth. The mask further comprises a pair of non-slip members, wherein both ends of the elastic holding frame are positioned to press the pair of non-slip members against both outer regions of the mouth.

This allows the elastic holding frame to stably press the non-slip member against the outer region of the mouth.

A sixth aspect is the mask according to the fifth aspect, wherein the elastic holding frame is a pair of elastic holding frames arranged inside the pair of laterally extending portions so as to face the outer region of the mouth. An inner extension may be included, and each of the pair of inner extensions may support the anti-slip member.

Accordingly, when the elastic holding frame is attached to the mask body, the non-slip member is assembled to the mask body. Therefore, the work of assembling the non-slip member is easy.

A seventh aspect is the mask according to the first to sixth aspects, wherein the mask body is folded such that the mountain folds and the valley folds are alternately arranged in the sheet, and the mountain folds are folded. It is formed in a curved shape that can be arranged from the mouth to both outer regions thereof by folding so as to be mirror-inverted in the middle of the extending direction of the part and the valley fold part, and the central part There may be a centering valley fold forming a valley, and the resilient retention frame may be positioned within the centering valley fold.

This suppresses displacement of the elastic holding frame with respect to the central portion.

An eighth aspect includes a central portion that covers the mouth, and a pair of laterally extending portions that extend from both sides of the central portion and are arranged on both sides of the mouth on the head, and the central portion includes a central frame holding portion that detachably receives the central frame portion of the elastic holding frame, and each of the pair of lateral extension portions detachably receives a pair of mounting portions at both ends of the elastic holding frame, respectively. A mask body including a holding portion.

According to this mask body, the central portion of the elastic holding frame is detachably arranged on the central frame holding portion, and the pair of mounting portions at both ends of the elastic holding frame is detachably attached to the end frame holding portions of the pair of laterally extending portions. can be placed wherever possible. By attaching the elastic retaining frame to the mask body, the pair of lateral extensions of the mask body can be pressed against the outer regions of the mouth on the head. For this reason, the mask can be worn without putting bands on the ears or the back of the head, improving the wearing comfort of the mask. Also, since the elastic holding frame is detachable from the mask body, the elastic holding frame can be reused for other mask bodies.

The above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that numerous variations not illustrated can be envisioned without departing from the scope of the invention.

10 Face 12 Mouth 15 Outer region 20, 120 Mask 30 Mask main body 30B Sheet 32 Central part 36 Lateral extension part 37 Bag-like part 50, 150 Elastic holding frame 52 Central frame part 54 End part 55, 155 Mounting part 60, 160 Non-slip Member 158 Inner extending portion M Mountain fold portion VR Reflection reversal surface RF Reflection reversal folding line V1 First lateral valley fold portion V2a Second lateral valley fold portion Vm Central positioning valley fold portion W Folding line

Claims (4)

a mask body including a central portion covering a mouth, and a pair of lateral extensions extending from opposite sides of the central portion and disposed on regions of the head on both sides of the mouth;
an elastic holding frame extending from one of the pair of laterally extending portions across the central portion toward the other of the pair of laterally extending portions to press the pair of laterally extending portions toward the both outer regions; ,
with
The elastic holding frame is detachably attached to the mask body,
each of the pair of laterally extending portions has a bag-like portion that opens toward the central portion;
a central frame portion of the elastic holding frame passes through the inside of the central portion, and mounting portions at both ends of the elastic holding frame are inserted into the bag-like portions of the pair of laterally extending portions;
In the mask body, the sheet is folded so that the mountain folds and the valley folds are alternately arranged, and is also folded so as to be mirror-reversed in the middle of the extending direction of the mountain folds and the valley folds. , formed in a curved shape that can be arranged from the mouth to both outer regions thereof,
Each of the pair of laterally extending portions includes a first lateral valley-fold portion forming a valley when viewed from the inside, and a second lateral valley-fold positioned above or below the first lateral valley-fold portion and forming a valley when viewed from the inside. and
The first horizontal valley fold is deployable so that at least a portion thereof faces the outer region of the mouth,
The mask , wherein the second lateral fold is folded to form the bag . A mask according to claim 1 ,
further comprising a pair of non-slip members arranged inside each of the pair of lateral extensions so as to face the outer region of the mouth;
The mask, wherein both ends of the elastic holding frame are positioned to press the pair of non-slip members against both outer regions of the mouth. a mask body including a central portion covering a mouth, and a pair of lateral extensions extending from opposite sides of the central portion and disposed on regions of the head on both sides of the mouth;
an elastic holding frame extending from one of the pair of laterally extending portions across the central portion toward the other of the pair of laterally extending portions to press the pair of laterally extending portions toward the both outer regions; ,
with
further comprising a pair of non-slip members arranged inside each of the pair of lateral extensions so as to face the outer region of the mouth;
both ends of the elastic holding frame are positioned to press the pair of non-slip members against both outer regions of the mouth;
the elastic retaining frame includes a pair of inner extensions disposed inside the pair of lateral extensions and facing an outer region of the mouth;
A mask, wherein each of the pair of inner extensions supports the anti-slip member. a mask body including a central portion covering a mouth, and a pair of lateral extensions extending from opposite sides of the central portion and disposed on regions of the head on both sides of the mouth;
an elastic holding frame extending from one of the pair of laterally extending portions across the central portion toward the other of the pair of laterally extending portions to press the pair of laterally extending portions toward the both outer regions; ,
with
In the mask body, the sheet is folded so that the mountain folds and the valley folds are alternately arranged, and is also folded so as to be mirror-inverted in the middle of the extending direction of the mountain folds and the valley folds. , formed in a curved shape that can be arranged from the mouth to both outer regions thereof,
the central portion has a central positioning valley fold forming a valley when viewed from the inside;
A mask, wherein the resilient retention frame is positioned within the centering valley fold.

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