JP2010279620A - Sanitary mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary mask which proves more useful by covering the nose and the mouth with a covering portion and forming a sufficient breathing space. <P>SOLUTION: The covering portion 10 of the sanitary mask includes a pleat forming portion 24 including a box pleat 26 and side pleats 28 and 30 which transversely extend, and has a shape symmetrically removing both lower corners of a horizontal rectangle 50. The length of the lower edge 54 of the covering portion 10 is 70% of the length of the rectangle 50, and the heights of the removed portions 52 are 50% of the height of the rectangle 50. The edges of both lower corners of the covering portion 10 are outwardly convex and single arcuate edges 56 forming arcs of one circle. Two ear straps 12 are hung on the ears, the pleats 26, 28, and 30 are extended upward and downward to form swollen portions and cover a user's nose, mouth and the surroundings. The side edges 38 and the lower edge 86 are, however, pulled toward the face, making the mask less baggy and fittable and well prevents dust or the like from intruding into the swollen portions. The lower portions of the side edges 38 less poke out from the face and the lower edge 86 less extends downward from the jaw. The mask makes user's face appear smaller and has a good appearance. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sanitary mask used for the purpose of preventing pollen, dust and the like from being sucked, and preventing cold infection.

  The sanitary mask includes, for example, a cover portion that covers the mouth and the nose and two ear hook portions that are hung on the ear, as described in Patent Document 1 below, and the cover portion extends in the lateral direction. Some include a crease forming portion in which a plurality of creases are formed. In the sanitary mask described in Patent Document 1, the cover portion has a horizontally long rectangular shape, and the fold forming portion includes one box fold and two vehicles each formed on each of the upper and lower sides of the box fold. Including folds. In this specification, the fold includes one mountain fold portion and one valley fold portion adjacent to each other, and one of the two side walls forming the mountain fold portion and one of the two side walls forming the valley fold portion are It is common and includes three side walls, and the box fold is formed by two folds having opposite directions formed adjacent to each other. A vehicle fold usually includes a plurality of folds that are continuously arranged in the same direction, but in this specification, only one fold is considered to be a marginal vehicle fold. The side edge portion of the fold forming portion is a side edge portion where side walls of the folds are welded to each other at both end portions of the three folds and do not extend. Also, a plastically deformable strip is embedded in the upper edge portion of the cover portion.

  When the sanitary mask is worn, the box folds and the vehicle folds are stretched, and the fold-forming portion is extended more and more in the vertical direction as it goes from the side edge to the central portion. A wide space is formed covering the nose and their periphery. In addition, the strip is deformed along the surface of the nose to be caught by the nose, preventing the upper edge from shifting downward, and breathing upward from the gap between the upper edge and the nose. Is suppressed. Further, the lower edge portion of the covering portion covers the distal end portion of the jaw.

Utility Model Registration No. 3126242

However, the conventional sanitary mask still has room for improvement. For example, the side edge portion of the cover portion is bumpy, and the separation from the face is large, and it is easy to get caught in the object during use, and dust, pollen, etc. easily enter from the gap between the face and the cover portion. In addition, the side edges and lower edges of the cover part are poorly fitted to the face and protrude outward from the face to make the face appear large, especially when the wearer is a woman and may feel resistance to wearing. There is room for improvement.
The present invention has been made in view of such circumstances, and has been made with an object of obtaining a more practical sanitary mask.

  Said subject consists of the material which has air permeability, and the cover part of the sanitary mask which includes the cover part which covers a mouth and a nose, and two ear hook parts extended from the both sides of the cover part and hung on an ear | edge In addition, a plurality of folds extending in the lateral direction are formed in the rectangular material, and the fold forming portions are formed as side edges that are not extended by joining the side walls of the folds at both ends of each fold. This is solved by having the shape of the lower end edge extending linearly 80% or less of the length of the rectangle by cutting both lower corners of the rectangle symmetrically.

The parts corresponding to both lower corners of the rectangle will be referred to as excised parts for the sake of convenience, but they need not necessarily be excised parts. From the viewpoint of ease of manufacture, it is desirable that the crease forming portion is formed and then actually cut off. However, even in such a case, a material having portions to be a plurality of cover portions is manufactured, and the above “ After the portion corresponding to the “non-stretching side edge” is formed, the entire shape of the covering portion can be formed at once by punching, and both lower corners can be cut off accordingly. Alternatively, a material having a predetermined shape may be prepared before the fold forming portion is formed, and the above shape may be formed as the fold forming portion is formed. In short, as a result, the cover portion only needs to have a shape that can be considered as having both rectangular corners cut off.
If the cut portion is too small, the effect of the present invention cannot be obtained. If the length of the linearly extending lower end edge is 80% or less of the length of the rectangle, the effect of the present invention is obtained, and 75% or less. 70% or less is desirable. On the other hand, it is not desirable that the cut portion is too large. When the lower end edge extending linearly exists at the lower end of the cover portion, the cover fits well to the user's jaw or the edge portion can be easily processed. Accordingly, the length of the lower end edge extending linearly is desirably 30% or more of the length of the rectangle, and more desirably 40% or more and 50% or more.

When the sanitary mask according to the present invention is worn, the two ear hooks are respectively hooked on the ears, the plurality of folds are stretched and expanded in the vertical direction, and the central part is bulged round forward. At the same time, the lower edge of the covering portion covers the distal end portion of the jaw. As a result, the nose and mouth are covered by the cover, and a sufficient breathing space is formed.
In this sanitary mask, the length of the lower end edge of the cover part is shorter than the length of the horizontally long rectangle, and it is easy to fit the face. The width of the human face is usually the narrowest at the tip of the chin, and if the length of the lower edge of the cover is the same as the length of the rectangle, the width of the cover and the face The difference with the width becomes large and the cover part becomes loose, and the side edge and the lower edge part are separated from the face.On the other hand, the length of the lower edge of the cover part is shortened. It is thought that the part becomes easier to follow along the face. For this reason, the side edge portion is less likely to be caught on the object during use of the sanitary mask, and dust, pollen and the like can be satisfactorily prevented from entering between the side edge portion and the lower edge portion and the face. Furthermore, the protrusion of the side edge portion and the lower edge portion of the cover portion from the face is reduced, the wearer's face looks small, and the appearance is excellent.

Aspects of the Invention

  In the following, the invention that is claimed to be claimable in the present application (hereinafter referred to as “claimable invention”. The claimable invention is at least the “present invention” to the invention described in the claims. Some aspects of the present invention, including subordinate concept inventions of the present invention, superordinate concepts of the present invention, or inventions of different concepts) will be illustrated and described. As with the claims, each aspect is divided into sections, each section is numbered, and is described in a form that cites the numbers of other sections as necessary. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combinations of the constituent elements constituting the claimable invention to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description accompanying each section, the description of the embodiment, the prior art, and the like. The added aspect and the aspect in which the constituent elements are deleted from the aspect of each item can be an aspect of the claimable invention.

  In each of the following terms, (1) corresponds to claim 1, (2) corresponds to claim 2, (3) corresponds to claim 3, (4) corresponds to claim 4, (7) corresponds to claim 5, (8) corresponds to claim 6, and (12) corresponds to claim 7.

(1) A sanitary mask made of a breathable material, including a cover that covers the mouth and nose, and two ear hooks that extend from both sides of the cover and are hooked on the ear,
The cover part includes a crease forming part in which a plurality of pleats extending in a lateral direction are formed in a quadrilateral material, and side parts of the crease are joined to each other at both end portions of the crease to form side edges that do not extend. And the lower corners of the horizontally long rectangle are cut off symmetrically so that the length of the lower end edge extending linearly is 80% or less of the length of the rectangle. mask.
(2) The sanitary mask according to item (1), wherein a height of the cut portion that can be considered that both lower corner portions of the horizontally long rectangle are cut left-right symmetrically is 20% or more of the height of the rectangle.
The height of the cut portion is preferably 20% or more of the height of the rectangle, and more preferably 25% or more and 30% or more.
When cutting both lower corners of the rectangle, the rectangle is cut on both sides across a right angle, and the shape of both lower corners of the cover changes depending on the amount of cut. Therefore, in addition to defining the length of the lower end edge of the cover portion, if the height of the cut portion is defined, the shape of both lower corners of the cover portion is more effective by shortening the lower end edge. The shape can be obtained effectively.
(3) A sanitary mask made of a breathable material, including a cover that covers the mouth and nose, and two ear hooks that extend from both sides of the cover and are hooked on the ear,
The cover includes a crease forming portion in which a plurality of pleats extending in a lateral direction are formed in a quadrangular material and the side walls of the crease are joined to each other at both end portions of each crease to form side edges that do not extend. As a whole, a sanitary mask having a shape in which both lower corners of a horizontally long rectangle are cut symmetrically so that a cut portion having a height of 20% or more of the height of the rectangle is formed.
By removing both lower corners of the rectangle, the lower edge of the cover becomes shorter than the length of the rectangle, and the effect can be obtained, and by defining the height of the cut, the shape of the lower corners of the cover can be changed. And it can be set as the shape suitable for the improvement of the fit of a sanitary mask, etc.
(4) The sanitary mask according to any one of (1) to (3), wherein the cut portion has a right triangle, and the cover has an inclined edge corresponding to the hypotenuse of the right triangle.
The inclined edge forms a straight line, and a sanitary mask having a sharply shaped cover is obtained. In addition, it is easier to manufacture than the sanitary mask described in the following items (5) to (7).
(5) The sanitary mask according to item (4), wherein a rounded portion is applied to a portion where at least one of the side edge and the lower edge of the cover portion intersects the inclined edge.
The round seasoning makes the sanitary mask mellow and looks better during use.
(6) The sanitary mask according to item (5), wherein a rounded radius of curvature attached to a portion where the side edge of the cover portion intersects the inclined edge is 10 mm or more.
From the viewpoint of improving the appearance during use of the sanitary mask, the radius of curvature is preferably 15 mm or more, and more preferably 20 mm or more and 25 mm or more.
(7) The state according to any one of (1) to (3), wherein the edges of both lower corners of the covering portion are drawn in an outwardly convex curve by excising both lower corners of the rectangle. Hygiene mask.
The “outwardly convex curve” is a convex curve whose radius of curvature gradually changes, whether it is a circular arc with a constant curvature radius or a combination of multiple types of arcs with different curvature radii. It may be said. Further, the “outwardly convex curve” may be in a state where it is in contact with at least one of the side edge and the lower edge of the cover portion, or may be in a state of intersecting.
If the edges of both lower corners of the cover are curved, a sanitary mask with a soft impression can be obtained.
The edges of both lower corners of the cover part may be in a state of drawing an inwardly convex curve, but the area of the cover part is larger in a state of drawing an outwardly convex curve, and the wearer A sufficient breathing space can be secured while covering the mouth and nose.
(8) The sanitary mask according to any one of items (1) to (7), wherein the upper corner of the cover is rounded.
If the upper corner of the cover is rounded, the sanitary mask will feel mellow and the appearance during use will be improved. The radius of curvature of the portion adjacent to the upper edge of the covering portion of the rounded portion is desirably 5 mm or more, and more desirably 8 mm or more and 10 mm or more.
(9) The sanitary mask according to any one of (1) to (8), wherein the plurality of folds include box folds.
One box pleat may be provided, or a plurality of box folds may be provided.
When the sanitary mask is mounted, the two folds of the box fold open upward and downward, respectively, and a vertical spread is obtained at the fold forming portion.
(10) The sanitary mask according to any one of (1) to (9), wherein the plurality of folds includes a car fold.
The vehicle fold usually includes a plurality of folds arranged continuously in the same direction, the plurality of folds extend in the arrangement direction, and the fold forming portion extends in the arrangement direction of the folds. In addition, the direction of the fold of the vehicle fold is the same, and the fold forming portion is easy to form. However, in the present specification, as described above, even when there is one pleat, it is considered as a critical fold.
(11) Any one of (1) to (8), wherein the plurality of folds includes both one box fold and a vehicle fold formed on at least one of the top and bottom of the box fold. Sanitary mask according to crab.
It can also be considered that a fold on one side of the box fold and a fold in the same direction adjacent to the fold on the one side constitute a car fold.
(12) The material having air permeability is formed by superimposing a plurality of sheets each having air permeability, and at least one of the upper end edge and the lower end edge of at least the cover portion among the plurality of sheets. The sanitary mask according to any one of items (1) to (11), wherein the one having a cut edge is covered with a cover sheet, and the cover sheet is subjected to an edge treatment for joining with another sheet.
By covering with the cover sheet, the cutting edge of the sheet is hidden and a good-looking hygiene mask is obtained.
(13) The sanitary body according to (12), wherein an outermost or inner one of the plurality of sheets is folded back to cover a cutting edge of another sheet and functions as the cover sheet. mask.
If the folded sheet is the innermost sheet, it is folded outward, and the cut edge of the sheet is outside the covering portion so that it does not hit the wearer, and the wearing feeling is good. If the folded sheet is the outermost sheet, it will be folded inward, and the cut edge of the sheet will be located inside the cover, so that the appearance will be good. In the case of the former, the innermost sheet will appear on the surface side of the cover, so that the thinner the sheet, the better the sanitary mask that can be obtained. It is desirable to be the thinnest.
(14) The cover sheet is a sheet different from the plurality of sheets, and is covered so as to cover at least one of an upper end edge and a lower end edge of the cover portion of the plurality of sheets (12 ) Or sanitary mask according to item (13).
In the aspect in which the present item is dependent on the item (12), in the at least one of the upper end edge and the lower end edge of the covering portion, all of the plurality of sheets have a cut edge, and all of the cut edges cover the cover portion. The embodiment covered with the sheet is included. A mode in which this item is subordinate to the item (13) is a mode in which one of the upper edge and the lower edge is the mode of the item (13) and the other is the mode of the present item, or a plurality of sheets An embodiment in which the outermost or inner one is folded back to cover the cutting edge of another sheet so as to function as the cover sheet and is covered with another cover sheet from above.
The cover sheet is also desirably thin to improve the appearance because the surface side edge of the cover portion can be seen.
(15) The sanitary mask according to any one of (1) to (14), wherein a longitudinal plastic deformation member made of a plastically deformable material is attached to the upper edge of the cover.
The wearer deforms the plastic deformation member in accordance with the shape of his / her face. Once the plastic deformation member is deformed, the plastic deformation member is kept in the deformed state, the downward shift of the sanitary mask is prevented, and the gap on the side of the nose is well closed.
(16) The sanitary mask according to (15), wherein the upper edge portion includes a cylindrical portion, and the plastic deformation member is inserted and attached in the cylindrical portion.
The plastic deformable member does not directly hit the wearer's face, and hits through the material, so that a sanitary mask with a good wearing feeling can be obtained while being prevented from shifting.
(17) The breathable material is a laminate of a plurality of nonwoven fabrics each made of a thermoplastic synthetic fiber, and the side edges of the pleats are pressurized and heated between the non-extending side edges. The sanitary mask according to any one of items (1) to (16), wherein the sanitary mask is formed by being welded.
The non-woven fabric is breathable but does not pass dust, pollen, etc., and is easy to mold, and is suitable as a sanitary mask material.

It is a front view which shows the sanitary mask which is one Embodiment. It is a rear view which shows the said sanitary mask. It is a perspective view which shows the said sanitary mask in a cross section in a direction perpendicular to the horizontal direction. It is a front view which shows the state with which the said sanitary mask was mounted | worn by the wearer. It is a side view which shows the state with which the said sanitary mask was mounted | worn by the wearer. It is a front view which shows roughly the cover part of the sanitary mask which is another embodiment with a rectangle. It is a front view which shows roughly the cover part of the sanitary mask which is another embodiment with a rectangle. It is a front view which shows roughly the cover part of the sanitary mask which is another embodiment with a rectangle. It is a front view which shows roughly the cover part of the sanitary mask which is another embodiment with a rectangle. It is a front view which shows roughly the cover part of the sanitary mask which is another embodiment with a rectangle. It is a front view which shows the conventional sanitary mask. It is a front view which shows the state with which the conventional sanitary mask was mounted | worn with the wearer. It is a side view which shows the state with which the conventional sanitary mask was mounted | worn with the wearer.

  Several embodiments of the claimable invention will now be described in detail with reference to the drawings. In addition to the following embodiments, the claimable invention can be implemented in various modifications based on the knowledge of those skilled in the art, including the aspects described in the above [Aspect of the Invention] section. .

  1 to 3 show a sanitary mask as an embodiment of the claimable invention. As shown in FIG. 1, this sanitary mask has a cover 10 that covers the wearer's mouth, nose, and their surroundings, and two ear hooks 12 that extend from both sides of the cover 10 and are hooked on the ear. Including. The covering portion 10 is made of a material having air permeability by overlapping a plurality of air permeable sheets, and in the sanitary mask, as shown in FIG. 3, three sheets 14, 16, 18 are overlapped. In the sanitary mask, the sheets 14, 16 and 18 are nonwoven fabrics made of thermoplastic synthetic fibers. In the sanitary mask, among the sheets 14, 16, 18, the outer and middle sheets 14, 16 are thinner than the inner sheet 18.

  As shown in FIGS. 1 to 3, the cover portion 10 includes a crease forming portion 24. FIG. 3 is a cross-sectional view of the sanitary mask, but the illustration of parallel oblique lines applied to the cut surface is omitted to avoid the drawing from becoming complicated. As shown in FIGS. 1 and 2, the fold forming portion 24 is provided at a central portion in the height direction of the cover portion 10, and includes a plurality of folds extending in the lateral direction, one box fold 26 and two in the sanitary mask. Includes car folds 28,30. As shown in FIG. 3, the box fold 26 includes an upward fold 32 and a downward fold 34 adjacent to each other. Each of the folds 32 and 34 and the vehicle folds 28 and 30 of the box fold 26 includes one mountain fold portion and one valley fold portion, and FIG. 3 shows the fold marks with a, b, and c. 3 side walls are included. The upward fold is a fold where the valley fold is opened upward, and the downward fold is a fold where the valley fold is opened downward.

  The vehicle fold 28 is formed in the same direction as the fold 32 adjacent to the upper side of the fold 32, and the vehicle fold 30 is formed in the same direction as the fold 34 adjacent to the lower side of the fold 34. In the fold forming portion 24, an upward fold and a downward fold are formed vertically symmetrically. Each of the vehicle folds 28 and 30 can be considered as a marginal vehicle fold with only one fold, and can be considered to form a vehicle fold with the folds 32 and 34 of the adjacent box fold 26.

  Each of the folds 32 and 34 and the vehicle folds 28 and 30 of the box fold 26 is welded by pressurization and heating at each end portion, and as shown in FIG. An edge 38 is formed. In FIG. 3, for the convenience of illustration, among the folds 28, 30, 32, 34, a gap is shown between adjacent folds, but actually the folds 28, 30, 32, 34 are shown. Are formed such that adjacent folds do not overlap and there is no gap between them. For convenience of formation, some of the adjacent folds may overlap slightly or a gap may be formed.

  As shown in FIG. 1 and FIG. 2, the cover 10 as a whole is assumed to be a horizontally long rectangle 50 circumscribing the cover 10, and both lower corners of the rectangle 50 are cut off symmetrically. Have a different shape. Each of the two virtual cutouts 52 has two sides including one rectangular corner of the rectangle 50, and one of the two sides in the vertical direction is 50% of the height of the rectangle 50. The one side in the horizontal direction is 15% of the length of the rectangle. Therefore, the length of the lower end edge 54 extending in a straight line of the cover portion 10 is 70% of the length of the rectangle 50. Further, the edge of the cut-out portion 52 that faces the right-angled corner is a circular arc having a curvature radius of 55 mm, which is a kind of convex curve on the right-angled corner, and as a result, the edges of both lower corners of the cover 10 Is a single arc edge 56 as a kind of outwardly convex curved edge or curved edge.

  Further, the single arc edge 56 intersects with the lower end edge 54 of the cover portion 10 and is in contact with the side end edge 60, and the single arc edge 56 and the side end edge 60 are smoothly connected. Furthermore, roundness 70 is attached to both upper corners of the cover 10. The roundness 70 has a plurality of, for example, two radii of curvature. The radius of curvature of the portion adjacent to the upper edge 68 of the cover 10 is 10 mm, and the radius of curvature of the portion adjacent to the side edge 60 is 30 mm. It is said that. Welding of both ends of the folds 28, 30, 32, 34 is performed so as to draw a curve along the side edge 60 and the single arc edge 56.

  As shown in FIG. 3, each of the three sheets 14, 16, and 18 constituting the material forming the cover portion 10 has a cutting edge at the upper end edge of the covering portion 10, and the sheets 14 and 16 are formed at the cutting edges. , 18 is covered with a cover sheet 76 which is joined and edge-treated. The cover sheet 76 is made of a non-woven fabric made of thermoplastic synthetic fibers, like the sheet 14 and the like, and in this sanitary mask, has the same thickness as the outermost sheet 14. The cover sheet 76 is placed on the sheets 14, 16, and 18 so as to cover the entire cutting edge in the lateral direction of the covering portion 10, and in the lateral direction of the covering portion 10 at two positions separated in the vertical direction. Are welded together by pressurization and heating, and joined to the sheets 14, 16, and 18, and together with the sheets 14, 16, and 18 constitute the upper edge portion 78 of the cover portion 10 without any crease. The roundness 70 including the cover sheet 76 is attached to both upper corners of the cover 10.

  By covering the cover sheet 76, the sheet 14, 16, 18 extends between the outermost sheet 14 and the cover sheet 76 in the lateral direction along the upper edge 68 of the cover portion 10, and in the lateral direction. A penetrating tubular portion 80 is formed and a strip 82 is inserted. The strip 82 has a narrow and thin plate shape with a long shape. In this sanitary mask, the strip 82 is a plastic deformation member having a long shape made of polyethylene to which an additive is added and made of a known plastically deformable material. And is provided in a state of being inserted into the cylindrical portion 80 and extending in the lateral direction of the cover portion 10. Both side portions in the longitudinal direction of the cylindrical portion 80 are welded by pressurization and heating, respectively, and both end openings of the cylindrical portion 80 are closed to prevent the strip 82 from being displaced in the longitudinal direction and falling off the cylindrical portion 80. The cover portion 10 is positioned at the center in the horizontal direction.

  Of the three sheets 14, 16, 18, the outermost and middle sheets 14, 16 also have a cutting edge at the lower edge 54 of the cover 10, but the innermost sheet 18 is the sheets 14, 16. As shown in FIG. 3, the dimension in the vertical direction is made longer, and the lower part is folded back so as to cover the cut edges of the sheets 14 and 16 so as to function as a cover sheet, and edge processing is performed. . The folded portion 84 of the sheet 18 is overlaid on the outermost sheet 14, and is pressed and heated along the lateral direction of the covering portion 10 at the lower end portions of the sheets 14 and 16 and the unfolded portion of the sheet 18. Are joined together to form the lower edge 86 of the cover 10 without any creases. The edges of both lower corners of the cover portion 10 are the single arc edge 56 including the folded portion 84 of the sheet 18.

  The two ear hook portions 12 are separate from the cover portion 10 and are formed in a string shape having good stretchability with a thermoplastic synthetic resin material in the sanitary mask. As shown in FIGS. 1 and 2, each of the ear hooks 12 has an upper end 78 of the cover 10 at one end, and is pressurized and applied to one end in the lateral direction of the portion in which the strip 82 is enclosed. Joined by welding by heating, the other end is a lower edge portion 86 of the cover portion 10, and one end portion in the lateral direction of the end portion portion of the folded portion 84 that is welded to the sheets 14, 16, 18. Are welded and bonded to each other by pressurization and heating. As a result, the ear hook 12 is attached to the cover 10, and the portion of the folded portion 84 that is closer to the end than the portion welded to the cover 10 is joined to the cover 10 and is prevented from flickering. Further, as described above, since the cover portion 10 has a shape in which both lower corners of the rectangle 50 are cut left and right symmetrically, the joint end portion of the ear hook portion 12 to the lower portion of the cover portion 10 is the cover portion. The cover 10 is positioned on the center side in the lateral direction from the joint end to the top of the cover 10.

When a person wears the sanitary mask, the two ear hooks 12 are respectively put on the ears, and the folds 32 and 34 of the box fold 26 and the car folds 28 and 30 are respectively set as shown in FIGS. The crease forming part 24 is extended more and more in the vertical direction from the side edge part 38 toward the center part, and the center part is bulged round forward, and the cover part 10 starts from the part where the strip 82 of the cover part 10 is provided. A bulging portion 90 reaching the lower end of the covering portion 10 is formed, and the lower edge 86 of the covering portion 10 covers the jaw. The inner surface of the bulging portion 90 forms a breathing space sufficient to cover the nose, mouth and their surroundings away from them. Further, the wearer deforms the strip 82 along the surface of the nose and is caught by the nose to prevent the upper edge 78 of the cover 10 from being displaced downward, and between the upper edge 78 and the side of the nose. The breath is prevented from leaking upward from the gap.
In addition, the wearing procedure of this sanitary mask is an example, and the wearer can wear the sanitary mask in an arbitrary order.

The sanitary mask thus mounted is superior in fit and beauty as compared to conventional sanitary masks.
As illustrated in FIG. 11, the conventional sanitary mask is configured in the same manner as the sanitary mask of the present embodiment except that the cover 250 has a horizontally long rectangular shape. The cover part 250 is made of a material in which three sheets having air permeability are overlapped, and the crease forming part 252 is formed on one box crease 254 and one on each of the upper and lower sides of the box crease 254. The two end portions of the folds 254, 256, and 258 are side edge portions 260 that are not extended by welding the side walls of the folds. Further, another cover sheet 264 is put on the cutting edge on the upper edge side of the cover portion 250 of the three sheets, and the strip 266 is embedded therein. Regarding the lower edge portion 267 of the cover portion 250, among the three sheets, the innermost sheet is folded outward to cover the cutting edges of the other two sheets, and the folded portion 268 has three sheets. It is welded over the entire lateral direction. Further, both end portions of the ear hook portion 270 are joined to the upper end portion and the lower end portion of each side edge portion 260 of the cover portion 250 by welding.

  When the conventional sanitary mask is mounted, as shown in FIGS. 12 and 13, the box fold 254 and the vehicle folds 256 and 258 are stretched and expanded in the vertical direction, and are swollen forward and bulged 272. Is formed, covering the mouth, nose and their periphery. In addition, the strip 266 is deformed along the surface of the nose so as to be caught by the nose, and the lower edge portion 267 of the covering portion 250 covers the distal end portion of the jaw.

  However, in the conventional sanitary mask, as shown in FIG. 12, both lower corners of the cover 250 can be seen from the front in the wearing state, and both side edges 260 are bent away from the face as shown in FIGS. Further, as shown in FIG. 13, as apparent from the fact that the lower edge portion 267 of the cover portion 250 is separated from the jaw, there is much looseness and poor fit. Therefore, the gap between the face and the cover part is large, pollen and the like easily enter, and the cover part 250 protrudes to the outside of the face and makes the wearer's face look larger.

  In contrast, as shown in FIGS. 4 and 5, the sanitary mask of the present embodiment is less bent at the side edge 38 of the cover 10 than the conventional sanitary mask, and the entire sanitary mask is mounted. The lower edge 86 of the cover 10 is brought into contact with the lower side of the wearer's chin, and the fit is good. This is because the sanitary mask is such that the length of the lower end edge 54 of the cover 10 is 70% of the rectangular length and the height of the cutout 52 is 50% of the rectangular height. Compared with the case where the cover portion is rectangular, the lower area is small enough to cover the face of the wearer, and it is considered that the bump is less likely to occur. Moreover, the lower end of the cover 10 of the ear hook 12 is positioned closer to the lateral center of the cover 10 than the upper end, and the distance from the ear is rectangular. When the wearer puts on the sanitary mask, the lower part of the side edge 38 is drawn toward the ear side by the elastic ear hook 12 so that the side edge 38 and the lower edge 86 are It is also thought to be along the cheeks and chin. In any case, this sanitary mask has a good fit, and it is possible to prevent the side edge 38 from being caught on the object and to prevent dust and pollen from entering the bulging part 90. The protrusion of the lower face and the lower edge 86 are not extended to the lower side of the chin, and the wearer's face looks small, and the appearance is excellent.

  Further, the strip 82 is inserted between the three sheets 14, 16, 18 stacked on each other and the cover sheet 76 placed on the sheets 14, 16, 18. Since the strip 82 hits the face through the 16, 18 and one cover sheet 76, the hit is particularly soft.

The cover part may have inclined edges corresponding to the hypotenuses of the right triangle at both lower corners. The embodiment will be described with reference to FIG.
With respect to the sanitary mask, as shown in FIG. 6 with the outline of the cover portion 100 only, the cut-out portion 104 assumed to be obtained by symmetrical cutting of the lower corners of the horizontally long rectangle 102 forms a right-angled triangle. The edges of both lower corners of the part 100 are straight inclined edges 106. In the cut portion 104, one side in the horizontal direction is longer than one side in the vertical direction among the two sides sandwiching the right angle. Of these two sides, one side in the vertical direction is, for example, 20% of the height of the rectangle 102, and one side in the horizontal direction is, for example, 15% of the length of the rectangle 102. The length of the lower edge is 70% of the length of the rectangle 102.

  Further, when the cut portion is a right triangle, one side in the vertical direction may be longer than one side in the horizontal direction among the two sides sandwiching the right angle, as in the cut portion 120 shown in FIG. In FIG. 7, reference numeral 122 indicates a cover, reference numeral 124 indicates a rectangle, and reference numeral 126 indicates an inclined edge. Of the two sides sandwiching the right angle of the cut portion 120, one side in the vertical direction is, for example, 50% of the height of the rectangle 124, and one side in the horizontal direction is, for example, 10% of the length of the rectangle 124. The length of the lower edge of the cover 122 is 80% of the length of the rectangle 124. The shape of the cut portion can be a right isosceles triangle.

  Further, as shown in FIG. 8, the cut portion 142 assumed to be obtained by symmetrical cut of both lower corners of the rectangle 140 forms a right triangle, and the edges of the lower corner portions of the cover portion 144 are straight. In the case of the inclined edge 146, roundness 152 and 154 may be attached to portions where the side edge 148 and the lower edge 150 of the covering portion 144 intersect with the inclined edge 146, respectively. For example, the roundness 152 has a radius of curvature of 20 mm, and the roundness 154 has a length of 10 mm. Roundness may be added to the upper left and right corners of the cover 144, respectively.

In addition, when the edges of both lower corners of the cover portion are in a state of drawing an outwardly convex curve, the curve has a plurality of types having different curvature radii as illustrated in FIG. For example, a double arc edge 176 in which three types of arcs 170, 172, and 174 are combined may be used. In FIG. 9, reference numeral 178 denotes a cover.
In addition, the edge which draws an outwardly convex curve at both lower corners of the cover portion may be a convex curve whose curvature radius is continuously and smoothly changed.

  Furthermore, like the cover part 190 shown in FIG. 10, in addition to both lower corner parts, both upper corner parts may have a shape in which both upper corner parts of the rectangle 192 are cut off symmetrically. Each edge 194 of the four corners is in a state of drawing an outwardly convex curve, for example. The length of the upper edge of the cover 190, the size and shape of the cut-off portions 196 at the upper corners of the rectangle 192, the shape of the edges of the upper corners of the cover 190, etc. It can be set similarly to the case where it has a shape cut off symmetrically.

  Moreover, when roundness is given to the upper corner | angular part of a cover part, the roundness may be made into the circular-arc-shaped round which has one curvature radius.

  10: Cover part 12: Ear hook part 14, 16, 18: Seat 24: Crease formation part 26: Box crease 28, 30: Car crease 38: Side edge part 50: Rectangular 52: Cut part 54: Lower edge 56: Single Arc edge 60: Side edge 68: Upper edge 70: Roundness 76: Cover sheet 80: Cylindrical part 82: Strip 100: Cover part 102: Rectangular 104: Cut part 106: Inclined edge 120: Cut part 122: Cover part 124 : Rectangle 126: Inclined edge 140: Rectangle 142: Cut part 144: Cover part 146: Inclined edge 148: Side edge 150: Lower edge 152, 154: Roundness 170, 172, 174: Arc 176: Double arc edge 178, 190 : Cover 192: Rectangular 196: Excision

Claims (7)

A sanitary mask made of a breathable material, including a cover that covers the mouth and nose, and two ear hooks that extend from both sides of the cover and hang on the ear,
The cover part includes a crease forming part in which a plurality of pleats extending in a lateral direction are formed in a quadrilateral material, and side parts of the crease are joined to each other at both end portions of the crease to form side edges that do not extend. And the lower corners of the horizontally long rectangle are cut off symmetrically so that the length of the lower end edge extending linearly is 80% or less of the length of the rectangle. mask.   The sanitary mask according to claim 1, wherein a height of a cut portion that can be considered that both lower corner portions of the horizontally long rectangle are cut left-right symmetrically is 20% or more of the height of the rectangle. A sanitary mask made of a breathable material, including a cover that covers the mouth and nose, and two ear hooks that extend from both sides of the cover and hang on the ear,
The cover includes a crease forming portion in which a plurality of pleats extending in a lateral direction are formed in a quadrangular material and the side walls of the crease are joined to each other at both end portions of each crease to form side edges that do not extend. As a whole, a sanitary mask having a shape in which both lower corners of a horizontally long rectangle are cut symmetrically so that a cut portion having a height of 20% or more of the height of the rectangle is formed.   The sanitary mask according to any one of claims 1 to 3, wherein the cut portion has a right triangle, and the covering portion has an inclined edge corresponding to a hypotenuse of the right triangle.   The sanitary mask according to any one of claims 1 to 3, wherein edges of both lower corners of the covering portion are drawn in a convex curve outward by cutting off both lower corners of the rectangle.   The sanitary mask according to any one of claims 1 to 5, wherein the upper corner portion of the covering portion is rounded.   The air-permeable material is formed by superimposing a plurality of air-permeable sheets, and among these sheets, at least one of the upper edge and the lower edge of the cover portion is a cutting edge. The sanitary mask according to any one of claims 1 to 6, wherein a mask having a surface is covered with a cover sheet, and an edge treatment is performed so that the cover sheet is joined to another sheet.

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