mask

Abstract

To provide a mask that conforms to the shape of a user's nose. [Solution] The mask comprises a mask body 20 having an upper end 21 that is long in the left-right direction to cover the nose of the user, an upper surface abutment part 30 that is arranged on the back surface of the mask body from the upper end of the mask body, and a second upper surface abutment part 40 that is arranged from the lower end 31 of the upper surface abutment part between the mask body and the upper surface abutment part in the front-to-rear direction perpendicular to both the up-down and left-to-right directions of the mask body and abuts against the nose, and the second upper surface abutment part is arranged so that the lower end of the upper surface abutment part is The mask is configured to be folded inward, and further has a first adhesive portion that bonds the central portions in the left-right direction of the upper surface abutment portion and the second upper surface abutment portion, and the second upper surface abutment portion and the upper surface abutment portion on the left and right sides of the first adhesive portion are not bonded together and form an open bag-like shape, and the user's exhaled air flows between the open bag-like second upper surface abutment portion and the upper surface abutment portion, causing the bag-like left and right portions to inflate.

Description

[Technical field]

[0001] The present invention relates to a mask. [Background technology]

[0002] In daily life, masks are sometimes worn to prevent catching a cold and to avoid the effects of pollen. Although this conventional mask can cover the nose and mouth, air leaks from both sides of the nose. In particular, when a person who wears glasses wears this mask, if the outside air is cold, the glasses may become fogged up by the wearer's breath. In order to prevent this, for example, Japanese Patent Application Laid-Open No. 2011-019894 discloses a mask having an edge member attached to the upper edge, which can fit the shape of the nose when the mask is worn and eliminate gaps, in which the edge member is made of a flexible material with at least a part having a roughly inverted U-shaped cross section, a core material that can be bent with a wire or the like is embedded inside, and the upper edge of the mask is fitted and attached with a gap between both side pieces.

[0003] The mask has an edge member attached to its upper edge, eliminating the gap between the upper edge of the mask and the nose. The lenses do not fog up even when wearing glasses. In other words, the edge member is made of a flexible material with a core material such as wire embedded in it, so it can be bent to fit the shape of the nose, and the edge member attached to the upper edge of the mask prevents gaps from occurring.

[0004] However, the edge member attached to the upper edge of the mask does not necessarily conform to the shape of the user's nose, resulting in a gap between the upper edge of the mask and the nose, which does not necessarily prevent leakage of exhaled air. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2011-019894 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a mask that conforms to the shape of the user's nose.

[0007] The mask in the first aspect has a mask body having an upper end portion long in the left-right direction to cover the nose of a user, an upper surface abutment portion arranged on the back surface of the mask body from the upper end portion of the mask body, and a second upper surface abutment portion arranged between the mask body and the upper surface abutment portion in a front-rear direction perpendicular to both the up-down direction and the left-right direction of the mask body from a lower end portion of the upper surface abutment portion and abutting against the nose of the user, the second upper surface abutment portion being arranged such that the lower end portion of the upper surface abutment portion is further folded inwardly The mask is configured to be folded up, and further has a first adhesive portion bonding the left-right central portions of the upper surface abutment portion and the second upper surface abutment portion together, and the second upper surface abutment portions on the left and right sides of the first adhesive portion bonded at the second upper surface abutment portion and the upper surface abutment portion are not bonded together and form an open bag-like shape, and when the user's exhalation flows between the open bag-like second upper surface abutment portion and the upper surface abutment portion, the bag-like left and right portions inflate.

[0008] The mask in the second aspect is the mask in the first aspect, wherein the mask body has an upper end, a left end, and a right end, and a bulge portion having an upper end that is folded multiple times in an accordion-like manner and configured in a band-like shape in the left-right direction at approximately the center in the up-down direction, the upper surface abutment portion and the second upper surface abutment portion are bonded at the left end and the right end, and further has a left arc-shaped adhesive portion and a right arc-shaped adhesive portion that bond the upper surface abutment portion and the second upper surface abutment portion, the left arc-shaped adhesive portion being arc-shaped from the upper end of the bulge portion near the left end to the upper end of the mask body, and the right arc-shaped adhesive portion being arc-shaped from the upper end of the bulge portion near the right end to the upper end of the mask body.

[0009] The mask in a third aspect is the mask in the first or second aspect, which has a right adhesive portion and a left adhesive portion that adhere the upper surface abutment portion and the second upper surface abutment portion to each other at predetermined positions to the right and left of the first adhesive portion, and the portion between the right adhesive portion and the left adhesive portion is bag-shaped.

[0010] The mask in a fourth aspect is the mask in the first to third aspects, further comprising a flexible cushioning portion disposed between the upper surface abutment portion and the second upper surface abutment portion so as to conform to the shape of the user's nose.

[0011] The mask in a fifth aspect is any of the first to fourth aspects, further comprising a nose fitter disposed on the upper contact portion, which can be bent to fit the shape of the user's nose.

[0012] According to a sixth aspect, the mask is any one of the first to fifth aspects, wherein both the upper surface abutment portion and the second upper surface abutment portion are formed by laminating four sheets of nonwoven fabric.

[0013] According to a seventh aspect, the mask of the sixth aspect is configured such that the upper surface abutment portion and the second upper surface abutment portion are each further configured with one sheet of nonwoven fabric laminated thereon.

[0014] The mask according to an eighth aspect is any one of the first to seventh aspects, wherein the mask body is formed by laminating three sheets of nonwoven fabric. Effect of the Invention

[0015] According to the present invention, it is possible to provide a mask that conforms to the shape of the user's nose. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a front view of the mask in the first embodiment etc. [Diagram 2] 1A is a rear view of the mask in the first embodiment, and FIG. 1B is an end view taken along line IIB-IIB in A. [Diagram 3] 1A is a rear view of a mask in the second embodiment, and FIG. 1B is an end view taken along line IIIB-IIIB in A. [Figure 4] 4A is a rear view of the mask in the third embodiment, and FIG. 4B is an end view taken along line IVB-IVB in A. [Diagram 5] 10A is a rear view of the mask in the fourth embodiment, and FIG. 10B is an end view taken along line VB-VB in A. [Figure 6] FIG. 2 is a rear view of the mask in use in the first embodiment. [Figure 7] FIG. 7 is an enlarged end view taken along line VII-VII in FIG. [Figure 8] FIG. 11 is a rear view of the mask in use according to the second embodiment. [Figure 9] FIG. 9 is an enlarged end view taken along line IX-IX in FIG. 8. [Figure 10] FIG. 11 is a rear view of the mask in use in the third embodiment. [Figure 11] 11 is an enlarged end view taken along the line XI-XI in FIG. 10. [Figure 12] FIG. 13 is a rear view of the mask in use in the fourth embodiment. [Figure 13] 13 is an enlarged end view taken along line XIII-XIII in FIG. 12. [Figure 14] 1A is a perspective view illustrating a cross section taken along line XIV-XIV in Fig. 1. B is a perspective view illustrating a cross section of a mask configured by laminating a sheet of nonwoven fabric on the upper surface abutment portion and the second upper surface abutment portion in the first embodiment and the like. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] A mask 10 in a first embodiment will be described. The mask 10 can be used to prevent inhalation of pollen, dust, etc., and can be used not only for medical purposes but also for preventing colds and the like in daily life. The mask 10 has a mask body 20, and has an upper surface abutment part 30 on its back surface (see FIG. 2A). The mask body 20 is longer in the left-right direction H than in the up-down direction V, has a roughly band-like shape, and has an upper end 21, a lower end 22, a left end 23, and a right end 24. Note that when referring to the left in the description of the mask 10, the description will be based on the back view of the mask 10 in FIG. 2 and subsequent figures.

[0018] The upper end 21 has a gentle arc shape. Similarly, the lower end 22 has a gentle arc shape, and their central portions protrude upward and downward, respectively. Furthermore, the left end 23 and the right end 24 both have arc shapes that extend into the interior of the mask body 20. Therefore, the intersections of the left end 23, the right end 24, the upper end 21, and the lower end 22, i.e., the four corners of the mask body 20, protrude outward.

[0019] In addition, annular ear loops 80, 80 for hanging on the ears are arranged at the left end 23 and the right end 24 near the four corners of the mask body 20. The ear loops 80, 80 are preferably made of elastic string such as rubber. Both ends of the annular ear loops 80, 80 are welded and fixed to ear loop bases 81, 81, 81, 81, respectively. The ear loop bases 81, 81, 81, 81 are arranged near the four corners of the mask body 20 as described above.

[0020] In addition, the mask body 20 has a bulging portion 25 that is folded in a bellows-like manner in multiple places at approximately the center in the up-down direction V and configured in a band-like shape extending in the left-right direction H. This bulging portion 25 bulges when in use, creating extra space around the mouth and nose of the user, making breathing and conversation easier. In addition, the mask body 20 is preferably configured to cover not only the nose but also the mouth of the user.

[0021] The mask body 20 has an upper contact portion 30 that hangs downward from the upper end portion 21 on the back surface of the mask body 20. The upper contact portion 30 has a length in the left-right direction H that is approximately the same as that of the upper end portion 21 so as to cover the area around the nose of the user, and a width in the height direction in the up-down direction V that is approximately half that of the mask body 20. The upper contact portion 30 is configured to be folded from the upper end portion 21 on the back surface of the mask body 20 (see FIG. 2A).

[0022] The second upper surface abutment portion 40 is disposed from the lower end portion 31 of the upper surface abutment portion 30 to the inside of the upper surface abutment portion 30 (between the mask body 20 and the upper surface abutment portion 30) (see FIG. 2B). Therefore, the upper half of the mask body 20 in the vertical direction V is a triple configuration of the mask body 20, the second upper surface abutment portion 40, and the upper surface abutment portion 30, excluding the nose fitter 70 and the buffer portion 75 described later (see FIG. 2B). The mask body 20, the second upper surface abutment portion 40, and the upper surface abutment portion 30 can each be configured by laminating two or three nonwoven fabrics. In this embodiment, three nonwoven fabrics are preferably laminated. The second upper surface abutment portion 40 is configured so that the lower end portion 31 of the upper surface abutment portion 30 is further folded inward. In this case, the lower end portion 31 of the upper surface abutment portion 30 is bag-shaped. Even when the second upper surface contact portion 40 is disposed as a separate body further inward from the lower end portion 31 of the upper surface contact portion 30, it is preferable that the lower end portion 31 is configured to be bag-shaped. The second upper surface contact portion 40 is in direct contact with the nose of the user, so to speak.

[0023] The buffer section 75 is disposed so as to be sandwiched between the upper surface contact section 30 and the second upper surface contact section 40. The buffer section 75 is made of a sponge-like synthetic resin and has cushioning properties so as to conform to the shape around the user's nose. When the buffer section 75 is provided, it is preferable that the upper surface contact section 30 and the second upper surface contact section 40 are fixed together when the first adhesive section 50 described below is provided (see FIG. 2B). The sponge-like buffer section 75 is in a slightly bulging state due to its cushioning properties.

[0024] Furthermore, the nose fitter 70 is disposed in the left-right direction H, i.e., horizontally, on the upper surface contact portion 30 so as to overlap with the second upper surface contact portion 40. This nose fitter 70 is preferably wire-shaped and made of metal having flexibility to bend freely while maintaining a certain shape. However, it may be made of synthetic resin as long as it has flexibility to bend freely while maintaining a certain shape (see FIG. 2B).

[0025] Moreover, the upper surface contact portion 30 of the mask 10 is bonded to the mask body 20 at the upper end portion 21 and approximately the upper halves of the left end portion 23 and the right end portion 24. Therefore, as described above, the lower end portion 31 of the upper surface contact portion 30 is bag-shaped, and has a space surrounded by the upper surface contact portion 30, the second upper surface contact portion 40, and approximately the upper halves of the left end portion 23 and the right end portion 24.

[0026] The lower contact portion 60 is bonded to the mask body 20 at the lower end portion 22 and at approximately the lower halves of the left end portion 23 and the right end portion 24. The first side portions 61, 61 of the lower contact portion 60 are not connected to the left end portion 23 and the right end portion 24, and the second side portions 62, 62 of the lower contact portion 60 are welded to the left end portion 23 and the right end portion 24. Since the first side portions 61, 61 and the second side portions 62, 62 are separated from each other, the first side portions 61, 61 of the lower contact portion 60 make it easy to pull the lower contact portion 60 forward during use and to cover the user's chin.

[0027] In addition, the outer periphery of the mask 10 is provided with an outer periphery adhesive portion 27. This welds the mask body 20, the upper surface abutment portion 30, the second upper surface abutment portion 40, and the lower surface abutment portion 60 to the outer periphery of the mask 10. In addition, since the upper surface abutment portion 30 and the second upper surface abutment portion 40 are connected, the upper surface abutment portion 30 and the second upper surface abutment portion 40 are bag-shaped. In addition, both ends of the upper surface abutment portion 30 and the lower surface abutment portion 60 in the left-right direction H are fixed. In addition, the adhesive portion 27 can fix both ends of the bulging portion 25, which is folded in a bellows shape in multiple folds and configured in a band shape across the left-right direction H.

[0028] The upper surface contact portion 30 and the second upper surface contact portion 40 are bonded at the left end 23 and the right end 24, and are further bonded at the left arc-shaped adhesive portion 33 and the right arc-shaped adhesive portion 34. The left arc-shaped adhesive portion 33 is arranged in a dotted line shape from the upper end 25a of the bulge 25 near the left end 23 to a position one-third of the length of the upper end 21 at the left end of the upper end 21 of the mask body 20, and its shape literally assumes an arc shape (see FIG. 1).

[0029] In addition, the right arc-shaped adhesive portion 34 is arranged in a dotted line shape from the upper end portion 25b of the bulge portion 25 near the right end portion 24 to a position one-third of the length of the upper end portion 21 at the right end of the upper end portion 21 of the mask body 20, and its shape is literally arc-shaped.

[0030] The mask body 20 has a lower contact portion 60 extending upward from the lower end 22 on the back surface thereof. The lower contact portion 60 has almost the same dimensions as the lower end 22 on the left and right sides so as to cover the vicinity of the user's mouth, and its width in the height direction is almost half the height of the mask body 20. The lower contact portion 60 is configured by folding the mask body 20 back on the back surface of the lower end 22 in the up-down direction V.

[0031] As described above, the lower surface contact portion 60 and the mask body 20 are bonded at the left end 23 and the right end 24, and are further bonded at the lower left arc-shaped adhesive portion 63 and the lower right arc-shaped adhesive portion 64. The lower left arc-shaped adhesive portion 63 is disposed in a dotted line shape from the lower end 25c of the bulge 25 near the left end 23 to a position one-third of the length of the lower end 22 of the mask body 20, and its shape literally presents an arc shape (see FIG. 1).

[0032] The lower right arc-shaped adhesive portion 64 is arranged in a dotted line from the lower end 25d of the bulge 25 near the right end 24 to a position one-third of the length of the lower end 22 from the right end of the lower end 22 of the mask body 20, and its shape literally assumes an arc shape (see FIG. 1). In this way, the left arc-shaped adhesive portion 33, the right arc-shaped adhesive portion 34, the lower left arc-shaped adhesive portion 63, and the lower right arc-shaped adhesive portion 64 can reliably cover the mouth and nose of the user. In addition, the mask 10 is preferably made of nonwoven fabric, and each of the above-mentioned adhesive portions is preferably bonded by welding in a dot shape using ultrasonic sealing.

[0033] Next, a mask 10A in the second embodiment will be described. Only the differences from the mask 10 in the first embodiment will be described, and the common parts will be given the same reference numerals and their description will be omitted. The first adhesive part 50, which adheres the upper surface contact part 30 arranged on the back surface of the mask body 20 to the second upper surface contact part 40, is arranged at the center of the first adhesive part 50 and the second upper surface contact part 40 in the left-right direction H. Here, the center of the first adhesive part 50 and the second upper surface contact part 40 means the position where it contacts the user's nose (not shown), and does not mean that it must be strictly in the center (see Figures 3A and B).

[0034] In addition, when the first adhesive portion 50 that bonds the upper surface contact portion 30 and the second upper surface contact portion 40 is disposed at the center of the first adhesive portion 50 and the second upper surface contact portion 40 in the left-right direction H, as described above, the upper surface contact portion 30 and the second upper surface contact portion 40 are bag-shaped, and the left side portion 50a and the right side portion 50b are bag-shaped due to the first adhesive portion 50. Therefore, as described later, when the user uses the mask, the left side portion 50a and the right side portion 50b expand, but the first adhesive portion 50 does not expand and comes into contact with the user's nose. Therefore, the expansion of the left side portion 50a and the right side portion 50b can close the gap next to the user's nose (not shown). It is preferable that the first adhesive portion 50 is welded at six circular points. When welded in this manner, the nonwoven fabric is less likely to become hard, and the wearing comfort is improved. Furthermore, some of the six points are welded together, so that some degree of positional deviation of the first adhesive portion 50 can be absorbed.

[0035] Next, a mask 10B in the third embodiment will be described. Only the differences from the mask 10 in the first embodiment will be described, and the common parts will be given the same reference numerals and their description will be omitted. The mask 10B has a left adhesive portion 51a and a right adhesive portion 51b that adhere the upper surface contact portion 30 and the second upper surface contact portion 40. The left adhesive portion 51a is literally located to the left of the upper surface contact portion 30, and the right adhesive portion 51b is literally located to the right of the upper surface contact portion 30, and they are arranged with a predetermined interval between them. Here, the predetermined interval is preferably an interval that divides the width of the upper surface contact portion 30 into approximately two halves. That is, the left adhesive portion 51a is located at a position that divides the length of the upper surface contact portion 30 in the left-right direction H into approximately four quarters, and at a position that divides the upper surface contact portion 30 into approximately four quarters from the left end 23. Further, the right adhesive portion 51b is disposed at a position that divides the length of the upper surface contact portion 30 in the left-right direction H into approximately four quarters and that divides the upper surface contact portion 30 into approximately four quarters from the right end portion 24. The portion 51 between the left adhesive portion 51a and the right adhesive portion 51b comes into contact with the nose of the user, as described below.

[0036] Next, a mask 10C in the fourth embodiment will be described. Only the differences from the mask 10 in the first embodiment will be described, and the common parts will be given the same reference numerals and their description will be omitted. The mask 10C has a first adhesive portion 50 that adheres the upper surface abutment portion 30 and the second upper surface abutment portion 40, a left adhesive portion 51a, and a right adhesive portion 51b. The first adhesive portion 50 is the same as the first adhesive portion 50 arranged in the mask 10A in the second embodiment, and is arranged in the center of the first adhesive portion 50 and the second upper surface abutment portion 40 in the left-right direction H. The left adhesive portion 51a and the right adhesive portion 51b are the same as the left adhesive portion 51a and the right adhesive portion 51b in the mask 10B in the third embodiment, and are given the same reference numerals.

[0037] Therefore, the left adhesive portion 51a is literally disposed to the left of the first adhesive portion 50 of the upper surface contact portion 30, and the right adhesive portion 51b is literally disposed to the right of the first adhesive portion 50 of the upper surface contact portion 30, and they are disposed at a second predetermined interval from the first adhesive portion 50. Here, the second predetermined interval is preferably an interval that divides the width of the upper surface contact portion 30 into four. That is, the position where the length of the left-right direction H of the upper surface contact portion 30 is approximately halved is the position of the first adhesive portion 50, and the left adhesive portion 51a is disposed at a position where the length of the left-right direction H of the upper surface contact portion 30 is approximately halved to the left, and where the left end portion 23 divides the upper surface contact portion 30 into four. Also, the right adhesive portion 51b is disposed at a position where the length of the left-right direction H of the upper surface contact portion 30 is approximately halved to the left, and where the right end portion 24 divides the upper surface contact portion 30 into four (see FIGS. 5A and B). Moreover, the buffer portion 75 is disposed between the left adhesive portion 51a and the right adhesive portion 51b.

[0038] In this way, the upper surface contact portion 30 and the second upper surface contact portion 40 are fixed at the above three points, with the first adhesive portion 50 disposed at the center in the left-right direction H, the left adhesive portion 51a disposed at a predetermined position on the left, and the right adhesive portion 51b disposed at a predetermined position on the right. In this case, the buffer portion 75 can be fixed at the first adhesive portion 50, the left adhesive portion 51a, and the right adhesive portion 51b. In addition, the nose fitter 70 is disposed inside the nose fitter adhesive portion 71, which is rectangular and long in the left-right direction H. As described above, although not shown, the upper surface contact portion 30 can be formed by stacking three nonwoven fabrics. Therefore, the nose fitter 70 is disposed so as to be sandwiched between two adjacent nonwoven fabrics among the three stacked nonwoven fabrics, and the nose fitter adhesive portion 71 can be welded around the nose fitter 70 to fix it.

[0039] As described above, the second upper surface abutment portion 40 is formed by further extending the lower end portion 31 of the upper surface abutment portion 30 inward. When the mask 10 is configured to be folded to the left, the lower end 31 has a bag-like shape. Therefore, the first location 52a and the second location 52b of the second upper surface abutment portion 40 other than the first adhesive portion 50, the left adhesive portion 51a, and the right adhesive portion 51b also have a bag-like shape. Note that front views (FIG. 1) of the mask 10A in the second embodiment, the mask 10B in the third embodiment, and the mask 10C in the fourth embodiment are omitted because they are common to the front view of the mask 10 in the first embodiment.

[0040] In order to wear the mask 10 of this embodiment on a user (not shown), the back side of the mask 10 is directed toward the user (not shown), and the upper contact portion 30 and the lower contact portion 60 are pulled out (see FIG. 6). At this time, the upper contact portion 30 on which the second upper contact portion 40 is arranged protrudes toward the front side of the drawing, with the left arc-shaped adhesive portion 33 and the right arc-shaped adhesive portion 34 as the boundary. The lower contact portion 60 protrudes toward the front side of the drawing, with the lower left arc-shaped adhesive portion 63 and the lower right arc-shaped adhesive portion 64 as the boundary. In particular, the first side portions 61, 61 of the lower contact portion 60 are not welded to the left end portion 23 and the right end portion 24, respectively, so that the lower contact portion 60 can be easily pulled out toward the front side during use, and the chin of the user can be easily covered.

[0041] At this time, the second upper contact portion 40 arranged on the back side of the upper contact portion 30 fits closely around the nose of the user. Also, the back side 65 of the lower contact portion 60 fits closely around the chin, including the mouth, of the user. Furthermore, the bulging portion 25 bulges, relieving breathlessness and making it easier to talk and breathe.

[0042] In addition, in FIG. 7, the second upper surface contact portion 40 can be fitted to the inclination of the user's nose, and in particular, the user's nose (not shown) comes into contact with the second upper surface contact portion 40, thereby fitting the nose to the nose. In addition, since the second upper surface contact portion 40 is bag-shaped on both sides of the user's nose as described above, the second upper surface contact portion 40 fits closely to the nose as the user's breath flows into the bag-shaped portion. Therefore, the gap between the user's nose and cheeks is blocked by the second upper surface contact portion 40 fitting closely to the mask 10, and the possibility of the user's breath leaking out can be reduced as much as possible. Therefore, when glasses are used, the glasses can be prevented from fogging up.

[0043] Next, the method of putting the mask 10A in the second embodiment on a user (not shown) is the same as that of the mask 10 in the first embodiment. In order to put the mask 10A on a user (not shown), the first adhesive part 50, which adheres the upper surface abutment part 30 arranged on the back surface of the mask body 20 and the second upper surface abutment part 40, abuts the nose of the user. Therefore, the second upper surface abutment part 40 can be closely fitted according to the inclination of the nose of the user, and the left side part 50a and the right side part 50b on both sides of the nose of the user are bag-shaped, and the user's breath flows into the bag-shaped left side part 50a and the right side part 50b, so that the left side part 50a and the right side part 50b are closely fitted to both sides of the nose of the user. Therefore, the gap between the nose and cheek of the user and the mask is blocked by the bulging left side part 50a and the right side part 50b, and the possibility of the user's breath flowing out can be reduced as much as possible (see Figs. 8 and 9). Therefore, when glasses are used, the glasses can be prevented from fogging up.

[0044] Next, the method of putting the mask 10B of the third embodiment on a user (not shown) is the same as that of the mask 10 of the first embodiment. In order to put the mask 10B on a user (not shown), the second upper contact portion 40 arranged on the back surface of the mask body 20 is brought into contact with the nose of the user. Therefore, the second upper contact portion 40 can be fitted closely to the inclination of the nose of the user, and the portion 51 between the left adhesive portion 51a and the right adhesive portion 51b on both sides of the nose of the user is bag-shaped, and the user's breath flows into the portion 51 between the left adhesive portion 51a and the right adhesive portion 51b, so that the portion 51 between the left adhesive portion 51a and the right adhesive portion 51b fits closely to both sides of the nose of the user. Therefore, the gap between the nose and cheeks of the user and the mask is blocked by the portion 51 between the bulging left adhesive portion 51a and the right adhesive portion 51b, and the possibility of the user's breath flowing out can be reduced as much as possible (see FIGS. 10 and 11). Therefore, when wearing glasses, the glasses can be prevented from fogging up.

[0045] Next, the method of putting the mask 10C of the fourth embodiment on a user (not shown) is the same as that of the mask 10 of the first embodiment. In order to put the mask 10C on a user (not shown), the first adhesive part 50, which adheres the upper surface abutment part 30 arranged on the back surface of the mask body 20 to the second upper surface abutment part 40, comes into contact with the nose of the user. Therefore, the part 52a between the first adhesive part 50 and the left adhesive part 51a and the part 52b between the first adhesive part 50 and the right adhesive part 51b are each bag-shaped, so that the user's breath flows into the part 52a and the part 52b, and the part 52a and the part 52b come into close contact with both sides of the user's nose. Therefore, the gap between the user's nose and cheeks and the mask is blocked by the bulging part 52a and the part 52b, and the possibility of the user's breath flowing out can be reduced as much as possible (see Figs. 10 and 11). Therefore, when wearing glasses, the glasses can be prevented from fogging up.

[0046] In addition, by using a sponge-like cushioning portion 75 in mask 10, mask 10A, mask 10B, and mask 10C and by providing nose fitter 70, the shape of mask 10 etc. can be further adapted to the shape of the user's nose, thereby preventing leakage of exhaled air as much as possible and further preventing fogging of glasses.

[0047] As described above, the mask body 20, the second upper surface abutting portion 40, and the upper surface abutting portion 30 can each be configured by laminating two or three sheets of nonwoven fabric, but further, the mask body 20 can be configured by laminating two or three sheets of nonwoven fabric, and the second upper surface abutting portion 40 and the upper surface abutting portion 30 can each be configured by laminating four sheets of nonwoven fabric. Furthermore, the second upper surface abutting portion 40 and the upper surface abutting portion 30 can each be configured by laminating one more sheet of nonwoven fabric. That is, as described later, the other second upper surface abutting portion 40' and the other upper surface abutting portion 30' can each be configured by laminating five sheets of nonwoven fabric (see Figs. 14A and 14B).

[0048] Specifically, the upper surface contact portion 30 of not only the mask 10 but also the masks 10A, 10B, and 10C can be configured by laminating four nonwoven fabrics, namely, the first nonwoven fabric 30a, the second nonwoven fabric 30b, the third nonwoven fabric 30c, and the fourth nonwoven fabric 30d. Similarly, the second upper surface contact portion 40 can be configured by laminating four nonwoven fabrics, namely, the first upper surface nonwoven fabric 40a, the second upper surface nonwoven fabric 40b, the third upper surface nonwoven fabric 40c, and the fourth upper surface nonwoven fabric 40d (see FIG. 14A). However, although not shown, it is also preferable to remove only the second upper surface nonwoven fabric 40b from the second upper surface contact portion 40 and to laminate three nonwoven fabrics, namely, the first upper surface nonwoven fabric 40a, the third upper surface nonwoven fabric 40c, and the fourth upper surface nonwoven fabric 40d. In this case, it is preferable that the upper surface contact portion 30 is laminated four nonwoven fabrics, namely, the first nonwoven fabric 30a, the second nonwoven fabric 30b, the third nonwoven fabric 30c, and the fourth nonwoven fabric 30d.

[0049] The upper surface abutment portion 30 of not only the mask 10' but also the masks 10A', 10B', and 10C' may be configured by stacking five nonwoven fabrics, namely, the first nonwoven fabric 30a, the second nonwoven fabric 30b, the third nonwoven fabric 30c, the fourth nonwoven fabric 30d, and the fifth nonwoven fabric 30e. Furthermore, the upper surface abutment portion 30 of not only the mask 10' but also the masks 10A', 10B', and 10C' may be configured by stacking five nonwoven fabrics, namely, the first upper surface nonwoven fabric 40a, the second upper surface nonwoven fabric 40b, the third upper surface nonwoven fabric 40c, the fourth upper surface nonwoven fabric 40d, and the fifth upper surface nonwoven fabric 40e (see FIG. 14B).

[0050] Furthermore, the second upper surface contact portion 40 and the upper surface contact portion 30 can be provided separately, or they can be provided as a series. That is, providing as a series means that the first nonwoven fabric 30a and the first upper surface nonwoven fabric 40a are made of a single piece of nonwoven fabric, the second nonwoven fabric 30b and the second upper surface nonwoven fabric 40b are made of a single piece of nonwoven fabric, the third nonwoven fabric 30c and the third upper surface nonwoven fabric 40c are made of a single piece of nonwoven fabric, and the fourth nonwoven fabric 30d and the fourth upper surface nonwoven fabric 40d are made of a single piece of nonwoven fabric, so that the second upper surface contact portion 40 and the upper surface contact portion 30 can be configured by stacking four nonwoven fabrics. This is true not only for the mask 10, but also for the masks 10A, 10B, and 10C (see FIG. 14A).

[0051] Furthermore, as described above, not only the mask 10' but also the other second upper surface contact portion 40' and the other upper surface contact portion 30' in the mask 10A', mask 10B', and mask 10C' each have a fifth nonwoven fabric, the fifth nonwoven fabric 30e and the fifth upper surface nonwoven fabric 40e, respectively. The difference between the mask 10, mask 10A, mask 10B, and mask 10C is that the other upper surface contact portion 30' has the fifth nonwoven fabric 30e. Also, the other second upper surface contact portion 40' further has the fifth upper surface nonwoven fabric 40e. Therefore, since the other points are similar, the same reference numerals are used and the description thereof is omitted. Also, the fifth nonwoven fabric 30e and the fifth upper surface nonwoven fabric 40e can be provided as the above-mentioned so-called series formed by one nonwoven fabric, thereby forming a laminated structure of a total of five nonwoven fabrics (see FIG. 14B). Needless to say, they may be provided separately. In this manner, the upper surface contact portion 30 and the second upper surface contact portion 40, and the other upper surface contact portion 30' and the other second upper surface contact portion 40' may each be constructed by laminating four or five nonwoven fabrics.

[0052] As described above, the second upper contact portion 40 and the upper contact portion 30 have one more layer than the mask body 20, and the other upper contact portion 30' and the other second upper contact portion 40' have two more layers, so that each is made of four or five layers of laminated nonwoven fabric, and by changing the thickness of the nose portion, which is prone to leaking, from the other portions, it becomes difficult for exhaled air to leak from the nose portion. Also, even if a nose fitter 70 made of a relatively hard material is used, a thin fabric that feels good against the skin can be used. In particular, when an aluminum nose fitter 70 is used, it is constructed by laminating two or three sheets of nonwoven fabric, and when the upper surface contact portion 30 is created, a thick nonwoven fabric is used to prevent the nose fitter 70 from tearing and popping out of the upper surface contact portion 30. However, by laminating four or five sheets of nonwoven fabric for the upper surface contact portion 30 or the other upper surface contact portion 30', a relatively thin nonwoven fabric is used, which reduces the possibility of the nose fitter 70 tearing and popping out of the upper surface contact portion 30 or the other upper surface contact portion 30' as much as possible, while improving the feel on the skin of the user. Also, the thickness of the nonwoven fabric is 1m 2 By using a nonwoven fabric that is 30 percent thinner in terms of the basis weight, which is measured in grams, it is possible to make it easier for exhaled air to escape.

[0053] In addition, the mask body 20 can be constructed by stacking two or three nonwoven fabrics to allow good breathing. In this case, it is preferable that the mask body 20 is constructed by stacking three nonwoven fabrics. Specifically, for example, when three nonwoven fabrics are stacked, the mask body 20 can be constructed by stacking a first main nonwoven fabric 20a, a second main nonwoven fabric 20b, and a third main nonwoven fabric 20c. This is true not only for the mask 10, but also for the masks 10A, 10B, and 10C, and the masks 10', 10A', 10B', and 10C'. [Explanation of symbols]

[0054] 10. Mask 20 Mask body 20a First main body nonwoven fabric 20b 2nd body non-woven fabric 20c 3rd body non-woven fabric 21 Upper end 22 Lower end 23 Left end 24 Right end 25 Bulge 30 Top surface contact part 30' Other upper abutment parts 30a 1st nonwoven fabric 30b 2nd nonwoven fabric 30c 3rd non-woven fabric 30d 4th non-woven fabric 30e 5th non-woven fabric 31 Lower end 40 2nd top contact part 40' Other second upper contact portion 40a 1st top non-woven fabric 40b 2nd top non-woven fabric 40c 3rd top non-woven fabric 40d 4th top non-woven fabric 40e 5th top non-woven fabric 50 1st adhesive part 50a left side 50b Right side 51a Left adhesive part 51b Right adhesive part 51 The area between the right and left adhesive parts 52a: the portion between the first adhesive portion 50 and the left adhesive portion 52b: A portion between the first adhesive portion 50 and the right adhesive portion 60 Bottom contact part 70 Nose Fitter 75 Buffer

Claims

1. A mask body having an upper end portion long in the left-right direction to cover the user's nose; an upper surface abutment portion disposed on a rear surface of the mask body from an upper end portion of the mask body; a second upper surface abutment portion that is disposed between the mask body and the upper surface abutment portion in a front-rear direction perpendicular to both the up-down direction and the left-right direction of the mask body and abuts against a user's nose, The second upper surface abutment portion is configured to fold the lower end portion of the upper surface abutment portion further inward, a first adhesive portion that adheres central portions of the upper surface abutment portion and the second upper surface abutment portion to each other in the left-right direction, the second upper surface abutment portion and the upper surface abutment portion at the left and right sides of the first adhesive portion bonded at the second upper surface abutment portion are not bonded to each other and have an open bag shape; When the user's breath flows between the open bag-shaped second upper surface contact portion and the upper surface contact portion, the left and right sides of the bag-shaped portion expand, The mask body has an upper end, a left end, and a right end. A bulging portion is provided at a center portion in a vertical direction thereof, the bulging portion being folded in a bellows-like manner in a number of ways and having an upper end portion formed in a band shape in a left-right direction, the upper surface abutment portion and the second upper surface abutment portion are bonded at the left end portion and the right end portion, and further include a left arc-shaped adhesive portion and a right arc-shaped adhesive portion that bond the upper surface abutment portion and the second upper surface abutment portion to each other, The left arc-shaped adhesive portion has an arc shape from an upper end of the bulge portion near the left end to an upper end of the mask body, The right arc-shaped adhesive portion has an arc shape from an upper end of the bulge portion near the right end to an upper end of the mask body, a left adhesive portion and a right adhesive portion that bond the upper surface abutment portion and the second upper surface abutment portion to each other, the left adhesive portion is disposed between the first adhesive portion and the left end portion, the right adhesive portion is disposed between the first adhesive portion and the right end portion, the upper surface abutment portion and the second upper surface abutment portion are fixed at the first adhesive portion, the left adhesive portion, and the right adhesive portion, The left end and the right end are arc-shaped so as to extend inward toward the inside of the mask body, When the user's exhaled breath flows into the area between the left adhesive portion and the first adhesive portion and the area between the right adhesive portion and the first adhesive portion, these areas expand, thereby blocking the gap between the user's nose and cheeks with these areas, thereby reducing the outflow of the user's exhaled breath.

2. 2. The mask according to claim 1, further comprising a cushioning portion disposed between the upper contact portion and the second upper contact portion, the cushioning portion having flexibility so as to conform to the shape of the user's nose.

3. 3. The mask according to claim 1, further comprising a nose fitter disposed on said upper contact portion, said nose fitter being bendable to fit the shape of the user's nose.

4. The mask according to claim 1 , wherein the upper surface abutment portion and the second upper surface abutment portion are both formed by stacking four sheets of nonwoven fabric.

5. The mask according to claim 4, wherein each of the upper surface contact portion and the second upper surface contact portion is formed by laminating a single sheet of nonwoven fabric.

6. The mask according to claim 1 , wherein the mask body is formed by laminating three sheets of nonwoven fabric.

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