JP2022127438A - three-dimensional mask - Google Patents

Abstract

To provide a three-dimensional mask capable of improving capturing performance.SOLUTION: A three-dimensional mask 10 comprises: a mask body 11 that covers a mouth and a nose of a wearer, having a filter layer; and a pair of ear hook parts 13 to be hooked on the wearer's ears, provided on both end sides in a horizontal direction of the mask body 11. Respective side edges 37 on both left and right sides of the mask body 11 are formed in a concave shape depressed inward in a horizontal direction, as both sides in a vertical direction expand outward in a horizontal direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a three-dimensional mask.

Patent Literature 1 discloses a three-dimensional mask in which the mask body covering the mouth and nose has a three-dimensional shape when worn. In this three-dimensional mask, the mask body has a filter layer formed of non-woven fabric, and is capable of collecting viruses and the like. In addition, in the three-dimensional mask of Patent Document 1, both side edges in the left-right direction of the mask body are linearly extending in the up-down direction.

Design registration No. 1588726

By the way, in the above-mentioned three-dimensional mask of Patent Document 1, although the mask body has a collection performance of collecting viruses etc., from the viewpoint of hygiene etc., it has a higher collection performance. is desirable.

The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide a three-dimensional mask capable of improving collection performance.

In order to achieve the above object, the three-dimensional mask of the present invention is
A three-dimensional mask body covering the wearer's mouth and nose and having a filter layer;
a pair of ear hooks provided on both ends in the left-right direction of the mask body and hooked on the wearer's ears,
Both side edges of the mask main body in the left-right direction are recessed inward in the left-right direction because both sides in the up-down direction project outward in the left-right direction.

According to the three-dimensional mask of the present invention, each side edge in the left-right direction of the mask body has a shape in which both sides in the up-down direction protrude outward in the left-right direction. Therefore, the mask has a filter layer. The area of the main body, that is, the collection area for collecting foreign substances such as viruses can be increased. Thereby, the improvement of collection performance can be aimed at.

The front view of a three-dimensional mask. The back view of a three-dimensional mask. The side view of the three-dimensional mask in a folded state. The perspective view which shows the wearing state of a three-dimensional mask. (a) is a cross-sectional view taken along the line AA in FIG. 2, and (b) is a cross-sectional view showing an enlarged view of the inside of the B frame in (a). The back view of the three-dimensional mask in other embodiment.

A three-dimensional mask of one embodiment embodying the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the three-dimensional mask 10 includes a mask body 11 and a cushion body 12 provided on the back surface of the mask body 11. As shown in FIGS. The mask body 11 covers the mouth and nose of the wearer. The mask body 11 has a three-dimensional shape in which the central portion in the left-right direction protrudes forward when the mask is worn. The cushion body 12 forms a pair of ear hooks 13 on both left and right end sides of the mask body 11 . The three-dimensional mask 10 is attached to the wearer's face by hooking the wearer's ears on these ear hooks 13 .

The mask body 11 has a substantially rectangular shape when viewed from the front. Specifically, the mask main body 11 has a shape in which the upper edge bulges upward at the center side in the left-right direction when viewed from the front. The mask main body 11 has a pair of left and right mask sheets 14 that are joined together at the central portion in the left-right direction. One of the pair of mask sheets 14 constitutes the left side portion of the mask body 11 and the other constitutes the right side portion of the mask body 11 . The pair of mask sheets 14 have shapes that are symmetrical to each other.

As shown in FIG. 5(b), the mask sheet 14 has an outer layer 14a forming the surface of the mask sheet 14, an inner layer 14b forming the back surface of the mask sheet 14, and is interposed between the outer layer 14a and the inner layer 14b. It has a three-layer structure including a filter layer 14c. The outer layer 14a and the inner layer 14b are made of cloth. The filter layer 14c is formed of a meltblown nonwoven fabric and has a trapping function of trapping foreign substances such as viruses and pollen. The filter layer 14c has approximately the same area as the outer layer 14a and the inner layer 14b.

As shown in FIGS. 1, 2 and 5(a), each mask sheet 14 is joined by sewing adjacent side edges. In this case, the side edges of the respective mask sheets 14 are overlapped with their surfaces facing each other, and joined in the overlapped state. As a result, the joined portions 15 of the mask sheets 14 are in a state of protruding toward the back side (in other words, rearward) of the mask body 11 . In addition, FIG. 5A shows a state in which a non-sewn region 27 of the upper edge cushion portion 22 , which will be described later, is separated from the mask body 11 . Also, the joint portion 15 is formed over the entire area of the mask body 11 in the vertical direction. The mask body 11 can be folded left and right along the joint 15 (see FIG. 3).

Next, the cushion body 12 will be explained.

The cushion body 12 has a pair of left and right cushion materials 18, and is formed by joining the respective cushion materials 18 to each other. Each cushion member 18 has a bilaterally symmetrical shape and is made of polyurethane foam, for example. The cushion material 18 is formed in a sheet shape, and more specifically, it is formed by punching out a sheet-shaped polyurethane foam.

The cushion body 12 has a peripheral edge cushion portion 21 provided on the peripheral edge portion of the back surface of the mask body 11 . The peripheral edge cushion part 21 continuously extends along the peripheral edge part of the mask body 11 and is formed in an annular shape as a whole. The peripheral cushion portion 21 is joined to the mask body 11 by sewing.

The peripheral edge cushion portion 21 includes an upper edge cushion portion 22 extending along the upper edge portion of the mask main body 11 , a lower edge cushion portion 23 extending along the lower edge portion of the mask main body 11 , and each side edge portion of the mask main body 11 . and a pair of side edge cushion portions 24 extending along. The upper edge cushion portion 22 extends over the entire upper edge portion of the mask body 11 and is connected to the upper end portion of each side edge cushion portion 24 . In this case, the upper edge cushion portion 22 extends left and right across the joint portion 15 of each mask sheet 14 . The upper edge cushion portion 22 has the same upper edge shape as that of the mask main body 11 . The upper edge cushion part 22 is arranged with its upper edge aligned with the upper edge of the mask body 11 . Further, the width of the upper edge cushion portion 22 is, for example, 5 to 15 mm.

The upper edge cushion portion 22 is sewn to the mask main body 11 along the length direction, and is joined to the mask main body 11 by the sewing. The upper edge cushion portion 22 is sewn to the mask body 11 at its upper edge. As a result, a portion of the upper edge cushion portion 22 below a sewn sewn portion 26 (indicated by a dashed line in FIG. 2) forms a non-sewn region 27 that is not sewn to the mask body 11 .

The lower edge cushion portion 23 extends over the entire lower edge portion of the mask body 11 and is connected to the lower end portion of each side edge cushion portion 24 . In this case, the lower edge cushion portion 23 extends left and right across the joint portion 15 of each mask sheet 14 . The lower edge cushion portion 23 has the same lower edge shape as that of the mask main body 11 . The lower edge cushion part 23 is arranged with its lower edge aligned with the lower edge of the mask body 11 . Further, the width of the lower edge cushion portion 23 is, for example, 5 to 15 mm.

The lower edge cushion portion 23 is sewn to the mask main body 11 along the length direction, and is joined to the mask main body 11 by the sewing. The lower edge cushion portion 23 is sewn to the mask body 11 at its lower edge. As a result, a portion of the lower edge cushion portion 23 above a sewn sewn portion 28 (indicated by a dashed line in FIG. 2) forms a non-sewn region 29 that is not sewn to the mask body 11 .

Each cushion material 18 constituting the cushion body 12 is divided into right and left portions at the center portion of the upper edge cushion portion 22 in the left-right direction and the center portion of the lower edge cushion portion 23 in the left-right direction. Each cushion member 18 is joined by thermal welding at the central portion in the left-right direction of each of the cushion portions 22 and 23 . In this case, joint portions 31 joined to each other in each cushion material 18 are present in the central portions of the upper edge cushion portion 22 and the lower edge cushion portion 23, respectively. These joints 31 are positioned at the same positions as the joints 15 of the mask sheets 14 in the left-right direction. Each joint 31 protrudes toward the back surface of the mask body 11, in other words, protrudes forward (see FIG. 5A). Therefore, the joint portion 31 does not protrude rearward.

The cushion body 12 has ear hook portions 13 on both sides in the left-right direction. Each ear hook 13 has an opening 33 into which the wearer's ear is inserted. The opening 33 has a laterally long oval shape. An annular portion 34 surrounding the opening 33 in the ear hook portion 13 is formed including the side edge cushion portion 24 of the peripheral edge cushion portion 21 . Therefore, the side edge cushion portion 24 forms part of the peripheral edge cushion portion 21 and also forms part of the annular portion 34 .

The side edge cushion portion 24 is a portion of the annular portion 34 closer to the mask main body 11 than the opening 33 in the left-right direction. The side edge cushion part 24 is arranged on the back surface of the side edge part of the mask body 11 in a state where a part in the left-right direction protrudes from the side edge 37 of the mask body 11 . In this case, the side edge cushion portion 24 has an overlapping portion 38 that overlaps the back surface of the side edge portion of the mask body 11 and a protruding portion 39 that protrudes from the side edge 37 . The width of the overlapping portion 38 is substantially the same as the widths of the upper edge cushion portion 22 and the lower edge cushion portion 23 . Also, the width of the protruding portion 39 is the same as or larger than the width of the overlapping portion 38 .

The overlapping portion 38 is sewn to the side edges of the mask body 11 along its length direction. This sewing joins the overlapping portion 38 and the side edge cushion portion 24 to the mask main body 11 . The overlapped portion 38 is sewn to the mask main body 11 at its laterally outer edge, in other words, sewn to the mask main body 11 at its laterally lateral edge on the side of the opening 33 . As a result, of the overlapped portion 38 , a portion (in other words, a portion on the side opposite to the opening 33 ) located inside the sewn portion 41 (indicated by the dashed line in FIG. 2 ) in the left-right direction is joined to the mask body 11 . It is a non-sewing area 42 that is not sewn.

Next, the shape of each side edge 37 of the mask body 11 will be described.

Each side edge 37 of the mask body 11 has a shape in which both sides in the vertical direction protrude in the horizontal direction. As a result, each side edge 37 has a recessed shape that is recessed inward in the left-right direction. Specifically, each side edge 37 has a curvilinear shape that protrudes inward in the left-right direction, in other words, it has a gentle circular arc shape that protrudes inward in the left-right direction. In this case, each side edge 37 is displaced outward in the horizontal direction toward both ends in the vertical direction. A straight line L connecting the upper end and the lower end of the side edge 37 (see the virtual line in FIG. 3) overlaps the opening 33 of the ear hook 13 and the mask body 11 in the thickness direction.

A protruding portion 39 protruding from the side edge 37 in the side edge cushion portion 24 extends over the entire area of the side edge 37 in the vertical direction. An inner edge 45 of the protruding portion 39 on the side of the opening 33 (in other words, an inner edge 45 of the side edge cushion portion 24 on the side of the opening 33) is recessed toward the mask main body 11 in the left-right direction. Specifically, the inner edge 45 of the protruding portion 39 has a curvilinear shape convex inward in the left-right direction, in other words, an arc shape convex inward in the left-right direction. Also, the curvature of the inner edge 45 of the protruding portion 39 is larger than the curvature of the side edge 37 of the mask body 11 .

According to the configuration of the present embodiment described in detail above, the following excellent effects are obtained.

Since each side edge 37 on both sides in the left-right direction of the mask body 11 has a shape in which both sides in the up-down direction protrude outward in the left-right direction, the area of the mask body 11 having the filter layer 14c, that is, the virus It is possible to increase the collection area for collecting such foreign matter. Thereby, the improvement of collection performance can be aimed at.

The ear hooking portion 13 is formed of a sheet-like cushioning material 18 (corresponding to a sheet material). The side edge cushion part 24 (corresponding to the side part), which is a part, is joined to the side edge part of the mask main body 11 in a state in which a part in the left-right direction protrudes from the side edge 37 of the mask main body 11 . An inner edge 45 of the side edge cushion portion 24 on the side of the opening 33 has a recessed shape that is recessed toward the mask main body 11 in the left-right direction. In this case, since the side edge 37 of the mask body 11 is configured to have a concave shape, the width of the protruding portion 39 of the side edge cushion portion 24 that protrudes from the side edge 37 of the mask body 11 can be easily made uniform. can. As a result, it is possible to prevent deformation that impairs the appearance of the protruding portion 39 of the side edge cushion portion 24 when the mask is worn.

Since the ear hooking part 13 is formed of the cushion material 18 that is softer than the mask main body 11, it is possible to make the ears less likely to feel pain even if the mask is worn for a long time. Also, if the ear hooks 13 are made of a flexible material, if the width of the protruding portion 39 is uneven, extreme deformation is likely to occur when the mask is worn. In this regard, in the above-described embodiment, as described above, the inner edge 45 of the side edge cushion portion 24 (the protruding portion 39) is formed in a concave shape, thereby making it easier to make the width of the protruding portion 39 uniform. Even with such a configuration, deformation of the protruding portion 39 can be suitably suppressed.

Of the side edge cushion portions 24 of the ear hooking portion 13, overlapping portions 38 overlapping the back surface of the side edge portions of the mask body 11 are sewn (bonded) to the mask body 11 at the edge portions on the side of the opening portion 33 in the left-right direction. As a result, the portion of the overlapped portion 38 on the opposite side of the opening 33 from the sewn portion 41 (corresponding to the joined portion) with the mask body 11 becomes a non-sewn region 42 (corresponding to the non-joined region). ing. In this case, when the mask is worn, the non-sewing area 42 can be opened away from the back surface of the mask body 11 , so that the side edges of the mask body 11 can preferably secure a collection area.

The upper edge cushion portion 22 and the lower edge cushion portion 23 that connect the side edge cushion portions 24 of each ear hook portion 13 are sewn to the mask main body 11 at the outer edges in the vertical direction, so that each cushion portion Non-sewing areas 27 and 29 are formed in the parts 22 and 23 that are vertically inside the parts 26 and 28 that are sewn to the mask body 11 . As a result, when the mask is worn, the non-sewn areas 27 and 29 can be opened away from the back surface of the mask body 11, so that the collection area can be suitably secured even at the upper and lower edges of the mask body 11. can do.

Each side edge 37 of the mask body 11 has a curved shape that displaces outward in the left-right direction toward both ends in the vertical direction. It overlaps with the opening 33 in the thickness direction of the main body 11 . In this case, since both sides of the side edges 37 of the mask body 11 in the vertical direction project largely outward in the horizontal direction, the collection area of the mask body 11 can be further increased.

Each side edge 37 of the mask main body 11 has a curved shape convex inward in the left-right direction, and an inner edge 45 of the side edge cushion portion 24 of each ear hook portion 13 is convex inward in the left-right direction. It has a curved shape. Also, the curvature of the inner edge 45 of each side edge cushion portion 24 is larger than the curvature of each side edge 37 of the mask body 11 . In this case, the width of the protruding portion 39 protruding from the side edge 37 of the mask body 11 in the side edge cushion portion 24 of the ear hook portion 13 gradually increases toward both ends in the vertical direction. Therefore, when the ear hooking portion 13 is put on the ear hooking portion 13, the pulling force generated in the ear hooking portion 13 can be distributed to act not only on the upper and lower end sides of the protruding portion 39 but also on the center side. As a result, it is possible to suppress deformation of the ear hook portion 13 due to pulling of only the upper and lower end sides of the protruding portion 39 .

The present invention is not limited to the above embodiments, and may be implemented as follows, for example.

(a) A three-dimensional mask 50 shown in FIG. 6 differs from the above embodiment in the configuration of the cushion body 12 (cushion material 18) forming the ear hook portion 13. FIG. That is, in the above embodiment, the cushion body 12 has the upper edge cushion part 22 and the lower edge cushion part 23, but in the example of FIG. It has a configuration. Therefore, in the example of FIG. 6, a pair of cushioning members 52 forming each ear hooking portion 51 are provided. Even in such a configuration, it is possible to obtain the same effect as the above-described embodiment.

(b) In the above embodiment, the cushion body 12 forming each ear hook portion 13 is formed by joining a pair of cushion materials 18, but the cushion body 12 may be formed of one cushion material.

(c) In the above embodiment, the ear hooking portion 13 is formed of the sheet-like cushioning material 18 (corresponding to the sheet material). good too. Moreover, the ear hooking portion does not necessarily have to be formed of a sheet material, and may be formed of a string, for example.

(d) In the above embodiment, the side edge 37 of the mask body 11 has a curved shape convex inward in the left-right direction, but it may have a straight shape convex inward in the left-right direction. Specifically, the side edge is composed of a linear upper side edge portion extending upward from the intermediate portion in the vertical direction and inclined outward in the horizontal direction, and an outer lateral edge portion extending downward from the intermediate portion in the horizontal direction. It is conceivable to construct it from a straight lower side edge extending obliquely. Also in this case, since the side edges are shaped to protrude outward in the horizontal direction on both sides in the vertical direction, the area of the mask body 11, that is, the collection area can be increased.

(e) In the above embodiment, the outer layer 14a and the inner layer 14b of the mask sheet 14 (and thus the mask body 11) are made of cloth. In addition, in the above-described embodiment, a nonwoven fabric is used as the filter layer 14c, but any material other than the nonwoven fabric may be used as the filter layer as long as it has a function of collecting viruses and the like.

(f) In the above embodiment, the mask body 11 is formed by joining a pair of left and right mask sheets 14, but the mask body 11 may be made entirely of the same mask sheet.

(g) In the above embodiment, each mask sheet 14 is joined by sewing, but each mask sheet 14 may be joined by other joining methods such as joining by heat welding. Further, in the above embodiment, the cushion body 12 (specifically, the peripheral cushion portion 21) is joined to the mask main body 11 by sewing, but this joining may be performed by other joining methods such as heat welding or adhesion. In addition, in the above-described embodiment, each cushion member 18 is joined by heat welding, but this joining may be performed by other joining methods such as sewing or adhesion.

DESCRIPTION OF SYMBOLS 10... Three-dimensional mask 11... Mask main body 13... Ear hook part 14c... Filter layer 18... Cushion material 24... Side edge cushion part as a side part 33... Opening part 34... Annular part 37... Side edge 38... Overlapping portion 42... Non-sewing area as a non-joining area 45... Inner edge.

Claims (6)

A three-dimensional mask body covering the wearer's mouth and nose and having a filter layer;
a pair of ear hooks provided on both ends in the left-right direction of the mask body and hooked on the wearer's ears,
A three-dimensional mask, wherein both side edges in the horizontal direction of the mask body are recessed inward in the horizontal direction by projecting both sides in the vertical direction to the outside in the horizontal direction. The ear hooking portion is formed of a sheet material and has an opening into which the ear is inserted,
Of the ring-shaped portion surrounding the opening in the ear hook portion, the side portion, which is the portion closer to the mask body than the opening in the left-right direction, extends partially from the side edge of the mask body in the left-right direction. It is joined to the side edge of the mask body in a protruding state,
2. The three-dimensional mask according to claim 1, wherein an inner edge of the side portion on the side of the opening portion has a recessed shape recessed toward the mask main body in the left-right direction. 3. The three-dimensional mask according to claim 2, wherein the ear hooks are made of a cushioning material that is softer than the mask body. The ear hooking portion is formed of a sheet material and has an opening into which the ear is inserted,
Of the annular portion surrounding the opening in the ear hook portion, the side portion, which is the portion closer to the mask main body than the opening in the left-right direction, is an overlapping portion overlapping the back surface of the side edge portion of the mask main body. and
The overlapping portion is joined to the mask body at an edge portion on the side of the opening portion in the left-right direction, so that a portion on the opposite side of the opening portion from the joined portion is a non-joining region. 4. The three-dimensional mask according to any one of Items 1 to 3. Each side edge of the mask body has a curved shape that displaces outward in the horizontal direction toward both ends in the vertical direction,
The three-dimensional mask according to any one of claims 2 to 4, wherein a straight line connecting the upper end and the lower end of the side edge of the mask body overlaps the opening in the thickness direction of the mask body. Each of the side edges of the mask body has a curved shape that protrudes inward in the left-right direction,
an inner edge of the side portion of each ear hook portion has a curved shape convex inward in the left-right direction,
6. The three-dimensional mask according to any one of claims 2 to 5, wherein the curvature of the inner edge of each side portion is greater than the curvature of each side edge of the mask body.

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