JP2019019435A - Sanitary mask - Google Patents

Abstract

To provide a sanitary mask, which is excellent in close contact between the mask and a user's face irrespective of the profile shape of the face, and gives a favorable impression and has a good appearance with the mask worn.SOLUTION: A sanitary mask 10 comprises: a mask body 11 transforming into a dome-shape by expanding pleat parts 25-28 which are composed of mountain-folding portions and valley-folding portions, and having a plane-polygonal shape with the pleat parts folded; a pair of right and left ear-hooking parts 12 for fastening ear strings on a first pair of stationary portions 14L and 14R arranged at an upper edge part 16, and a second pair of stationary portions 15L and 15R arranged at a lower edge part 17 of the mask body 11; and a first ramp 17L and a second ramp 17R forming the lower edge part 17 of the mask body 11 and inclining at the same angle. A relationship between the length A from the first left stationary portion 14L to the first right stationary portion 14R of the mask body 11 and the length B from the second left stationary portion 15L to the second right stationary portion 15R of the mask body is set so as to be 0.85≤B/A≤1.05.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a sanitary mask.

  Sanitary mask (hereinafter abbreviated as “mask”) protects the nose and throat from cold and dryness, prevents airborne substances from being taken into the body, and prevents secretions from the mouth and nose. There are effects such as preventing scattering.

  At present, the mask is generally of a rectangular non-woven type. In a non-woven fabric type mask, a plurality of pleats (also referred to as wrinkles) are provided along the long side direction (also referred to as the longitudinal direction) on the front surface of the mask body.

  When wearing a mask with pleats on the mask body, the user hangs a pair of ear hooks on the right and left ears respectively, and picks the central part in the long side direction of the mask body in the vertical direction. Pull on. Then, the closed pleats are gradually expanded, and the shape of the mask body changes from a flat rectangular shape to a dome shape.

  As shown in FIG. 1A, when the mask body 2 of the mask 1 is formed in a dome shape, a space S as indicated by broken lines is obtained at the user's nose and mouth when the mask 1 is worn. As a result, the user can easily breathe and can reduce discomfort such as stuffiness.

  Reference numeral 3 denotes an ear hook. One end of the ear hook 3 is in the vicinity of the intersection of the long side and the short side of the mask main body 2 and on the upper edge fixing portion 2u on the upper edge 1U side, on the lower edge 1D side in the vicinity of the intersection. It is fixed to the lower end fixing part 2d.

  When a person's face is viewed from the front, the outline of the face is generally V-shaped, with the left and right widths becoming smaller (narrower) from the bottom of the left and right ear roots to the tip of the chin. It is the 1st outline O1 shown as a continuous line.

  However, the outline of a human face is indicated by a second outline O2 or a two-dot chain line that is generally smaller than the first outline O1 in which the width of the face is indicated by a solid line, as indicated by a broken line in FIG. 1B. Thus, the width in the left-right direction is substantially the same as the first contour O1 indicated by the solid line in the vicinity of the center, but compared with the third contour O3 or the first contour O1 where the width becomes narrower toward the jaw. There are various types such as a large outline (not shown) as a whole.

  For this reason, for example, the user of the second contour O2 shown by the broken line as shown in FIG. 1C, when the mask body 2 is worn, the lower left portion 2LD and the lower right portion 2RD of the mask body 2 protrude from the contour line 4. There is a case.

  As described above, when the lower left portion 2LD and the lower right portion 2RD of the mask body 2 protrude from the contour line 4 of the user, the mask body 2 is in a state of floating from the face. As a result, the face of the user wearing the mask 1 appears larger than the actual face. In other words, when the mask body 2 protrudes from the outline 4, the user's appearance is greatly changed between before and after wearing the mask.

  For this reason, a mask user has desired a mask that gives a clean facial impression even when the mask is worn.

  Patent Document 1 discloses a sanitary mask that has reduced the protrusion of the side edge and lower edge of the cover portion from the face, makes the wearer's face look smaller, and is excellent in beauty. This sanitary mask includes 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 portion extends linearly by forming a plurality of folds extending in the lateral direction (corresponding to the longitudinal direction of the present application) on the quadrangular material and by cutting both lower corners of the horizontally long rectangle symmetrically. The lower end edge has a shape corresponding to 80% or less and 50% or more of the length of the rectangle, and the side walls of the folds are joined to each other at both ends of the plurality of folds. Two non-stretching side edges, the lower portions of the two non-stretching side edges are substantially at both bottom corner edges corresponding to those formed by cutting the bottom corners of the cover. By being bent in a state extending in parallel, the distance between the two non-extending side edges becomes narrower downward, and both ends of the two ear hooks are formed at the upper and lower corners of the cover. And are joined.

Japanese Patent No. 5280943

  However, in the sanitary mask disclosed in the above-mentioned Patent Document 1, both lower corners of the covering portion are excised with the pleats closed, and the left and right widths are increased from the lower left and right ear roots of the human face to the tip of the jaw. The shape of the contour is small and the shape of the upper part of the ear hook is on both ends of the long side, while the position of the lower part of the ear hook is shifted to the center of the long side, that is, the tip of the jaw. ing. Thus, if the position of the lower part of the ear hook part is shifted to the center side of the long side, the length becomes longer than the conventionally used ear strap, which is uneconomical.

  In addition, the mask main body part outside the imaginary line connecting the upper part of the ear hook part and the lower part of the ear hook part is lifted from the face, but the lower part of the ear hook part is welded on the center side of the long side. The part which floats from the face increases. If the floating part is cut out and the width of the mask body is reduced, the face may protrude from the mask body when worn by a user with a large contour. A clean face impression cannot be obtained.

  In addition, in order to prevent the length of the ear strap from becoming long, when the position of the lower part of the ear hook part is set to both ends above the lower end part, the mask body on the chin tip side floats from the lower part of the ear hook part and is in a close contact state. Becomes insufficient.

  The present invention has been made in view of the above-described circumstances, and has excellent adhesion between a mask and a face regardless of the contour shape of a human face, and can provide a good impression when worn with a mask. The aim is to provide a mask.

The sanitary mask of one embodiment of the present invention is configured by laminating a single layer of nonwoven fabric or a plurality of nonwoven fabrics, and forming a ridge portion formed by providing a mountain fold portion and a valley fold portion along the longitudinal direction in the longitudinal direction. A mask body, which is arranged in parallel in the transverse direction perpendicular to each other, is formed into a planar polygonal shape in the state in which the collar portion is folded, and the planar polygonal shape is deformed into a dome shape by spreading. A first fixing portion provided at a left end portion and a right end portion of an upper edge portion of the mask body, and a left end portion and a right end portion of a lower edge portion of the mask body, respectively. A pair of left and right ear hooks to which each end of the ear strap is fixed to the second fixing part, and a first inclined part and a second inclined part that are inclined at the same angle forming the lower edge part of the mask body, The upper edge from the center of the upper left side first fixing part of the upper edge of the mask body The length A to the center of the first fixed portion side, and the length B from the center of the lower edge left second fixed portion to the center of the lower edge right second fixed portion of the mask body, during,
0.85 ≦ B / A ≦ 1.05
The relationship is set.

  ADVANTAGE OF THE INVENTION According to this invention, it can implement | achieve the hygiene mask which is excellent in the adhesiveness of a mask and a face irrespective of the outline shape of a person's face, and can obtain the appearance of a good impression in the state which wore the mask.

The figure explaining the mask by which space is obtained in the nose and the mouth by spreading it in a dome shape The figure explaining the example of the outline of the face of the user who wears a mask Front view of a user wearing a mask body that protrudes from the outline of the face The figure explaining the structural example of the sanitary mask of this invention The figure explaining the mask main body of the state before forming a tack The figure explaining the collar part etc. which were juxtaposed in the transversal direction of the mask main body of FIG. 3A The figure explaining the mask main part of the sanitary mask which expanded the collar part to the up-and-down direction, and was transformed into the dome shape A side view of a user wearing a sanitary mask Front view of a user wearing a sanitary mask The figure explaining the other structural example of a mask main body The figure explaining the collar part arranged in parallel by the transversal direction of the mask main body of FIG. 7A The figure explaining another example of composition of a mask body The figure explaining the collar part arranged in parallel by the transversal direction of the mask main body of FIG. 7C The figure explaining the other structural example of a mask main body The figure explaining the collar part arranged in parallel by the transversal direction of the mask main body of FIG. 7E The figure explaining the structural example which increased the number of the collar parts provided in a mask main body. The figure explaining the structural example which enlarged the folding amount of the tack | tuck provided in a mask main body

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  In each drawing used for the following description, each component may have a different scale in order to make each component recognizable on the drawing. The present invention is not limited only to the number of components described in these drawings, the shape of the components, the ratio of the sizes of the components, and the relative positional relationship of the components.

  Further, in the following description, the upper, lower, left, and right directions viewed from the plane of the drawing are described as the upper, lower, left, and right sides of the components.

  A sanitary mask (hereinafter abbreviated as a mask) 10 of the present invention will be described with reference to FIG.

  The mask 10 shown in FIG. 2 is used, for example, to prevent airborne substances from being taken into the body or to prevent the secretions from being scattered from the mouth or nose.

  The mask 10 includes a mask body 11 and two ear hooks 12. The mask body 11 is formed from a single nonwoven fabric or a plurality of nonwoven fabrics of two or more layers. Specifically, in this embodiment, the mask main body 11 is, for example, three layers, and is formed by laminating a spunbond nonwoven fabric provided on the mouth side, a meltblown nonwoven fabric provided in the middle, and a spunbond nonwoven fabric provided on the outside. Is formed.

  The upper (upper edge portion of reference numeral 16) side and the lower (lower edge portion of reference numeral 17) side of the three-layer nonwoven fabric have a plurality of intermittent left and right seals extending in the longitudinal direction (also referred to as the left and right direction) parallel to the X axis. Joined by a wire 13. The left and right seal lines 13 are provided by welding with an ultrasonic welding machine or the like.

  Note that the mask body 11 is not limited to the three layers described above, and is configured by appropriately combining various nonwoven fabrics. The mask body 11 may have a configuration in which a plurality of one type of nonwoven fabrics taking air permeability into consideration are stacked.

  The ear hook 12 is configured by providing a pair of rubber straps or the like that are ear hooks on the left and right sides of the mask body 11. The end portions of the two ear hook portions 12 are arranged on the outer surface of the mask body 11, respectively, on the left side (left edge portion of reference numeral 19) and right side portion (right edge portion of reference numeral 18). Are integrally fixed to a first fixing part 14 and a second fixing part 15 respectively. In addition, the 1st fixing | fixed part 14 and the 2nd fixing | fixed part 15 are welding parts provided by welding processing with an ultrasonic welding machine etc.

  In the present embodiment, the first fixing portion 14 includes an upper edge left first fixing portion (hereinafter abbreviated as a first left fixing portion) 14L provided on the left edge 19 side of the upper edge 16, and a right edge. An upper edge portion right first fixing portion (hereinafter abbreviated as a first right fixing portion) 14R provided on the portion 18 side.

  On the other hand, the second fixing portion 15 includes a lower edge left second fixing portion (hereinafter abbreviated as a second left fixing portion) 15L provided on the left edge portion 19 side of the lower edge portion 17, and a right edge. A lower edge portion right second fixing portion (hereinafter abbreviated as a second right fixing portion) 15R provided on the portion 18 side.

  Further, the mask body 11 is provided with plate-like portions (hereinafter referred to as plates) indicated by reference numerals 20, 21, 22, 23, and 24, for example.

  Reference numeral 20 denotes a center plate, reference numeral 21 denotes a first lower plate, reference numeral 22 denotes a second lower plate, reference numeral 23 denotes a third lower plate, and reference numeral 24 denotes an upper plate. That is, the mask body 11 includes the upper plate 24, the center plate 20, the first lower plate 21, the second lower plate 22, and the third lower plate 23 in order from the upper edge 16 side.

  The upper plate 24 is provided with the first left fixing portion 14L and the first right fixing portion 14R described above, and a nose fitter 31 is also provided. The nose fitter 31 is formed, for example, from a resin thin plate. When the wearer who is the user wears the mask 10 so as to cover the nose and mouth, the upper edge 16 of the mask body 11 follows the uneven shape of the wearer's nose by deforming the nose fitter 31 while adjusting it. Maintains the shape and adheres closely.

  The nose fitter 31 is disposed in a space provided between the nonwoven fabrics between the seal wires 13 provided on the upper plate 24 of the mask body 11. In order to prevent the nose fitter 31 from being displaced in the longitudinal direction, a pair of seal portions (not shown) for closing the space are provided on both sides of the nose fitter 31. This seal portion is also provided by a welding process using an ultrasonic welding machine or the like.

  The third lower plate 23 includes a lower edge portion 17, and the third lower plate 23 is provided with tacks 41 and 42 having a first inclined portion 17 </ b> L and a second inclined portion 17 </ b> R constituting the lower edge portion 17.

  Therefore, in this embodiment, the mask body 11 has a planar shape in which the upper edge portion 16, the right edge portion 18, the left edge portion 19, and the first inclined portion 17 </ b> L and the second inclined portion that constitute the lower edge portion 17. 17R, a so-called planar pentagonal shape (also referred to as a planar pentagonal shape).

  The mask body 11 described above is configured by processing the mask member 110. As shown in FIG. 3A, the mask member 110 includes a lower edge portion 17, an upper edge portion 16, a right edge portion 18, and a left edge portion 19 before the first inclined portion 17L and the second inclined portion 17R are provided. , That is, a rectangle having a predetermined size.

  As shown in FIG. 3A, the mask member 110 is provided with a center plate 20, a first lower plate 21, a second lower plate 22, a third lower plate 23, and an upper plate 24, and a first tack 41 and a lower plate 23 are provided on the lower plate 23. A second tack 42 is provided.

  The center plate 20, the first lower plate 21, the second lower plate 22, the third lower plate 23, the upper plate 24, the first tack 41, and the second tack 42 will be described with reference to FIGS. 3A and 3B.

  The center plate 20, the first lower plate 21, the second lower plate 22, the third lower plate 23, and the upper plate 24 are a plurality of folds formed by providing a folded portion and a folded portion along the X axis. Portions (also referred to as pleats) 25, 26, 27, and 28 are juxtaposed in the Y-axis direction, which is the short direction.

  The center plate 20 is a surface portion that extends along the X axis and is sandwiched between a mountain fold upper end edge Mu and a mountain fold first lower end edge Md1. In the description of the present embodiment, when the mask main body 11 is expanded and formed into a dome shape as shown in FIG. 4, the four collar portions 25, 26, 27, 28 are viewed from the side of the wearer, A mountain fold portion and a valley fold portion are defined based on a fold line that forms a mountain shape and a valley shape on the outside.

  The above-described upper plate 24 is a surface portion that is located on the upper side of the center plate 20 and is sandwiched between the valley lower end edge Vd and the upper edge portion 16 that extend along the X axis of the first flange portion 25. A part of the lower side of the upper plate 24 including the lower end edge Vd of the valley folds over the center plate 20 on the wearing side.

  The first lower plate 21 is located on the lower side of the center plate 20 and is a surface portion sandwiched between a valley fold first upper edge Vu1 and a mountain fold second lower edge Md2 extending along the X axis of the second flange 26. is there. A part of the upper side of the first lower plate 21 including the valley folded first upper end edge Vu1 overlaps the center plate 20 on the wearing side.

  The second lower plate 22 is located on the lower side of the first lower plate 21, and is sandwiched between a valley folded second upper end edge Vu2 and a mountain folded third lower end edge Md3 extending along the X axis of the third flange portion 27. It is a face part. A part of the upper side of the second lower plate 22 including the valley folded second upper end edge Vu2 overlaps the first lower plate 21 on the wearing side.

  The third lower plate 23 is located on the lower side of the second lower plate 22 and is a surface portion sandwiched between the third upper edge Vu3 of the valley fold extending along the X axis of the fourth flange portion 28 and the lower edge portion 17. is there. A part of the upper side of the third lower plate 23 including the valley folded third upper end edge Vu3 overlaps the second lower plate 22 on the wearing side.

  Tacking spots 43a, 43b, and 43c for providing a first tack 41 and a second tack 42 are provided at predetermined positions on the right edge 18 side and the left edge 19 side of the third lower plate 23, respectively. Yes.

  Reference numeral 45 denotes an upper and lower seal line, which is provided in the vertical direction (also referred to as the vertical direction) intermittently parallel to the Y axis provided by welding with an ultrasonic welding machine or the like. The upper and lower seal lines 45 join the right edge 18 side and the left edge 19 in a state where the flanges 25, 26, 27, and 28 of the plates 24, 20, 21, 22, and 23 described above overlap each other.

  Here, the X axis represents the first midpoint c1 of the first short line segment S1 connecting the center c14L of the first left fixed portion 14L and the center c15L of the second left fixed portion 15L, and the first right fixed portion 14R. This is a line passing through the second middle point c2 of the second short line segment S2 connecting the center c14R and the center c15R of the second right fixed portion 15R.

  On the other hand, the Y-axis includes the third midpoint c3 of the first longitudinal line segment L1 connecting the center c14L of the first left fixed portion 14L and the center c14R of the first right fixed portion 14R, and the second left fixed portion 15L. Is a line passing through the fourth middle point c4 of the second longitudinal line segment L2 connecting the center c15L of the second and the center c15R of the second right fixed portion 15R.

  The X axis is a bisector of a line segment connecting the third midpoint c3 and the fourth midpoint c4.

  The length of the first longitudinal line segment L1 and the length of the second longitudinal line segment L2 are the same dimension and A. On the other hand, the length of the first short line segment S1 and the length of the second short line segment S2 are the same size and S.

  The above-mentioned distance from the upper edge 16 to the center c14L, the distance from the left edge 19 to the center c14L, the distance from the upper edge 16 to the center c14R, the distance from the right edge 18 to the center c14R, the lower edge The distance from the portion 17 to the center c15L, the distance from the left edge portion 19 to the center c15L, the distance from the lower edge portion 17 to the center c15R, and the distance from the right edge portion 18 to the center c15R are set to substantially the same dimensions. is there.

  Here, the first tack 41 and the second tack 42 will be described.

  A first tack 41 and a second tack 42 are provided, which are folding parts having a predetermined folding amount provided by providing the third lower plate 23 with a valley folding part and a mountain folding part having a predetermined form. Symbols V1 and V2 shown in FIG. 3A are valley fold lines, and symbols M1 and M2 are mountain fold lines.

  The third lower plate 23 is provided with valley folds along the valley fold lines V1 and V2, and then provided with mountain folds along the mountain fold lines M1 and M2 to form the folds. As shown in FIG. 2, tack fixing portions 44 are provided on the lower end sides of the upper and lower seal lines. Then, the tack spots 43a, 43b, 43c provided on the third lower plate 23 are fixed, and two tacks 41, 42 are formed on the third lower plate 23.

  As shown in FIG. 2, the first tack 41 is provided on the left edge portion 19 side from the Y axis, and the second tack 42 is provided on the right edge portion 18 side from the Y axis. The first tack 41 has a first inclined portion 17L inclined by an angle θ with respect to the Y axis, and the second tack 42 has a second inclined portion 17R inclined by an angle θ with respect to the Y axis. .

  Accordingly, by providing the third lower plate 23 with the first tack 41 and the second tack 42 having a predetermined shape, the position of the lower edge 17 is pulled up toward the upper edge 16, and the lower edge 17 Is provided with a first inclined portion 17L and a second inclined portion 17R inclined at an angle θ across the Y axis, and the lower edge portion 17 has a substantially V-shape approaching the contour of the jaw.

  In addition, by providing the first tack 41 and the second tack 42 on the third lower plate 23, the length from the center c15L of the second left fixing portion 15L to the center c15R of the second right fixing portion 15R is as shown in FIG. 3A. The dimension A is reduced to the dimension B shown in FIG.

  In the above-described embodiment, when the first tack 41 and the second tack 42 are provided on the third lower plate 23, the length from the center c14L of the first left fixing portion 14L to the center c15L of the second left fixing portion 15L. Is set from dimension S to dimension C, and the length from the center c14R of the first right fixing part 14R to the center c15R of the second right fixing part 15R is also reduced from the dimension S to the dimension C.

  As a result, the mask 10 including the mask main body 11 shown in FIG. 2 is configured. The mask main body 11 configured in this way is deformed into a dome shape shown in FIG. 4 by developing the first collar part 25, the second collar part 26, the third collar part 27, and the fourth collar part 28. . The developed vertical length of the mask body 11 when deployed in a dome shape is D.

  The developed vertical length D is a length from the center portion of the upper edge portion 16 to the intersection of the first inclined portion 17L and the second inclined portion 17R, which is the center of the lower edge portion 17.

In the present embodiment, between the length A of the upper edge portion 16 and the length B of the lower edge portion 17 described above.
0.85 ≦ B / A ≦ 1.05 (1)
The relationship is set. Here, for example, the length A is 155 mm, the length B is 152 mm, and B / A = 152/155 = 0.98.

  When the length A is 155 mm and the length B is 138 mm, B / A is 0.89. In this way, when the length B is set to 138 mm, in addition to the first tack 41 and the second tack 42, although not shown in the drawings, the folding is formed by providing a mountain fold portion and a valley fold portion substantially along the Y axis. One or more vertical pleats are provided and the length B is adjusted.

Further, the length from the center c14L of the first left fixing portion 14L to the center c15L of the second left fixing portion 15L and the length from the center c14R of the first right fixing portion 14R to the center c15R of the second right fixing portion 15R. Between length C and unfolded length D 2.7 ≦ D / C ≦ 4.7 (2)
The relationship is set. Here, for example, the length C is 59 mm and the length D is 160 mm.

  As shown in FIGS. 5 and 6, the user 50 wears the mask 10 in which the mask main body 11 configured as described above is expanded in a dome shape.

  Here, the user 50 is, for example, the above-described second contour O2.

  In the wearing state shown in FIG. 5, the relationship (2) is set, so that the center plate 20 forms a dome-shaped top, and the first lower plate 21 and the second lower plate 22 are formed on the front surface of the mouth. And a part of 2nd lower board 23 is arrange | positioned and the space S can fully be ensured.

  Further, since the relationship (1) is set, the first inclined portion 17L and the second tack 42 formed by the first tack 41 are formed without changing the length of the ear straps from the conventional one. The lower edge portion 17 formed in a substantially V shape with the second inclined portion 17R is arranged in close contact along the throat direction from the chin tip side along the user's 50 contour 51.

  As a result, the right edge portion 18 and the left edge portion 19 have a slightly curved “shi” shape and are arranged in close contact with the cheek. That is, the upper edge portion 16 of the mask body 11 in the unfolded state, the inclined portions 17L and 17R of the lower edge portion 17, the right edge portion 18, and the left edge portion 19 are arranged in close contact with the face.

  For this reason, it is possible to prevent inhalation of fine particles and the like, and when the user wearing the mask looks from the front, the problem that the appearance of the user gives a larger impression than the actual face is eliminated, A mask that gives a clean facial impression can be provided.

  In addition, since a part of the first lower plate 21, the second lower plate 22 and the third lower plate 23 of the mask main body 11 is arranged to form a sufficient space S at the mouth, the wearer can breathe and speak. easy.

  In the above-described embodiment, the mask body 11 includes the upper plate 24, the center plate 20, the first lower plate 21, the second lower plate 22, and the third lower plate 23 in this order from the upper edge portion 16 side. However, as shown in FIGS. 7A and 7B, the mask main body 11A having the first upper plate 61, the second upper plate 62, the center plate 20, the first lower plate 21, and the second lower plate 22 in this order from the upper edge portion 16 side. And the relationship of (1) and (2) above may be set.

  In the present embodiment, the second lower plate 22 includes the lower edge portion 17, and the first lower inclined portion 17 </ b> L and the second inclined portion 17 </ b> R constituting the lower edge portion 17 are provided on the second lower plate 22. It is done. Other configurations are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.

  According to this configuration, the same operations and effects as those of the mask body 11 described above can be obtained.

  7C and 7D, a mask main body 11B having a first upper plate 61, a second upper plate 62, a third upper plate 63, a center plate 20, and a first lower plate 21 in this order from the upper edge portion 16 side. It is possible to configure and set the relationship of (1) and (2) above.

  In the present embodiment, the first lower plate 21 includes the lower edge portion 17, and the first lower plate 21 is provided with tacks 41 and 42 having the first inclined portion 17 </ b> L and the second inclined portion 17 </ b> R constituting the lower edge portion 17. It is done. Other configurations are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.

  According to this configuration, the same operations and effects as those of the mask body 11 described above can be obtained.

  Further, as shown in FIGS. 7E and 7F, the first plate portion 64, the second plate portion 65, the third plate portion 66, and the fourth plate portion are sequentially provided from the upper edge portion 16 side without providing the center plate 20. 67, the mask main body 11C having the fifth plate-shaped portion 68 may be configured, and the relationship of the above (1) and (2) may be set.

  In the present embodiment, the fifth plate-like portion 68 includes the lower edge portion 17, and the tacks 41, 42 having the first inclined portion 17 </ b> L and the second inclined portion 17 </ b> R constituting the lower edge portion 17 on the fifth plate-like portion 68. Is provided. Other configurations are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.

  According to this configuration, the same operations and effects as those of the mask body 11 described above can be obtained.

  In FIG. 7F, the first plate-like portion 64 on the upper edge portion 16 side is disposed on the outermost surface side. However, although not shown, a first plate portion 64, a second plate portion 65, a third plate portion 66, a fourth plate portion 67, and a fifth plate portion 68 are provided in order from the upper edge portion 16 side. When the mask main body 11C is configured, the fifth plate 68 may be disposed on the outermost surface and the first plate 64 may be disposed on the innermost surface, contrary to FIG. 7F.

  In the embodiment described above, the number of ridges of the mask body 11 is four. However, the number of buttocks is not limited to four, and may be five, six, or the like. For example, as shown in FIG. 8A, the first upper plate 76, the center plate 70, the first lower plate 71, the second lower plate 72, the third lower plate 73, the fourth lower plate 74, and the fifth plate in order from the upper edge portion 16 side. The mask body 11 </ b> D having the lower plate 75 and having six ridges may be configured, and the relations (1) and (2) above may be set.

  In the present embodiment, the fifth lower plate 75 includes the lower edge portion 17, and the tacks 41 and 42 having the first inclined portion 17 </ b> L and the second inclined portion 17 </ b> R constituting the lower edge portion 17 are provided on the fifth lower plate 75. It is done. Further, the mask main body 11D of the present embodiment is provided with two more plate-like portions as compared with the mask main bodies 11 and 11A-11C described above.

  Accordingly, the length from the center c14L of the first left fixing portion 14L to the center c15L of the second left fixing portion 15L and the length C from the center c14R of the first right fixing portion 14R to the center c15R of the second right fixing portion 15R. Is set to, for example, 34 mm within a range satisfying the relationship (2) from 59 mm, for example. Other configurations are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.

  According to this configuration, even when the number of the collars is six, the same operation and effect as those of the mask body 11 described above can be obtained.

  In addition, when only one plate-like portion is provided as compared with 11, 11A-11C, the length C is set to, for example, 43 mm between 59 mm and 34 mm satisfying the relationship (2). This makes it possible to obtain the same operations and effects as those of the mask main body 11 described above when the number of collars is five.

  Thus, the length C can be adjusted within a range that satisfies the relationship (2) above by changing the number of collars. Moreover, even if the number of collars is four, for example, the length C can be adjusted by appropriately changing the amount of overlapping of the collars on the plate (overlapping width). Specifically, the length C can be reduced by 40 mm when the folding width is set to 7 mm and when it is set to 12 mm, for example.

  In the embodiment described above, the tacks 41 and 42 having a predetermined folding amount are provided on the plate-like portion including the lower edge portion 17 constituting the mask main bodies 11 and 11A-11D. However, the folding amount of the tack provided on the plate-like portion including the lower edge portion 17 is not limited to a predetermined folding amount, and may be tacks 46 and 47 having a large folding amount as shown in FIG. 8B. .

  The mask main body 11E shown in FIG. 8B has an upper plate 24, a center plate 20, a first lower plate 21, a second lower plate 22, and a third lower plate 23 in order from the upper edge portion 16 side in the same manner as the mask main body 11. ing. The third lower plate 23 is provided with tacks 46 and 47 that are folded more than the tacks 41 and 42 having the first inclined portion 17L and the second inclined portion 17R constituting the lower edge portion 17.

  The third tack 46 has a first inclined portion 17L inclined at an angle θ with respect to the Y axis and is provided on the left edge portion 19 side from the Y axis, and the fourth tack 47 is inclined at an angle θ with respect to the Y axis. It has the 2nd inclination part 17R, and is provided in the right edge part 18 side from the Y-axis.

  Therefore, like the mask main body 11 described above, the lower edge portion 17 has a substantially V shape close to the contour of the jaw. The length from the center c15L of the second left fixed portion 15L to the center c15R of the second right fixed portion 15R is reduced to the dimension B as described above.

  In contrast, since the third tack 46 and the fourth tack 47 of the third lower plate 23 have a large folding amount, the length from the center c14L of the first left fixing portion 14L to the center c15L of the second left fixing portion 15L. The length dimension C and the length dimension C from the center c14R of the first right fixing portion 14R to the center c15R of the second right fixing portion 15R are set to, for example, 34 mm within the range satisfying the relationship (2).

  According to this configuration, the same operation and effect as those of the mask main body 11 described above can be obtained even when the tacks 46 and 47 having a larger folding amount than the tacks 41 and 42 are provided.

  According to the present embodiment, the plate-like portion including the lower edge portion of the rectangular mask member 110 provided with a plurality of plate-like portions has a desired size having an inclined portion inclined at an angle θ across the Y axis. Are provided on the basis of the above relations (1) and (2).

  As a result, the length of the ear strap can be prevented from becoming long, and the mask body that is excellent in the adhesion between the mask body and the face regardless of the contour shape of the human face and that is expanded in a dome shape. Appearance of a good impression can be obtained in a worn state.

  In the above-described embodiment, by providing a tack on the mask member 110, an inclined portion inclined by an angle θ across the Y axis is provided at the lower edge portion, and the lower edge portion 17 approaches the contour of the jaw. It has a letter shape.

  However, in addition to providing the lower edge portion 17 with an inclined portion inclined at an angle θ across the Y axis, the mask body is configured by setting the relationship of (1) and (2) above, and the above-described operations and effects are achieved. It may be realized.

  Although not shown, the lower edge is changed by changing the positions of the tack spots 43a, 43b, 43c and the valley fold lines V1, V2, and the mountain fold lines M1, M2 provided on the plate-like part having the lower edge part 17. An inclined portion is provided on the portion 17 with the Y axis interposed therebetween, and the V-shape matching the contour of the jaw can be adjusted as appropriate.

  Further, it is conceivable to use the mask member 110 of FIG. 3A as a mask body. In this case, since the tack for forming the inclined portion is not provided on the lower edge portion 17, the S dimension corresponding to the C dimension is, for example, 76 mm. At this time, the value of D / C is 2.1, which is out of the relationship (2).

  When the mask member 110 is mounted as a mask body, the lower edge portion 17 cannot be in close contact along the throat direction from the user's chin tip side, and the left edge portion 19 and the right edge portion 18 are difficult to closely contact on the cheek. That is, a problem that the user's face appears larger than the actual face and a problem that the appearance of the side face deteriorates occur.

  The invention described in each of the above embodiments is not limited to those embodiments and modifications, and various modifications can be made without departing from the scope of the invention in the implementation stage. .

DESCRIPTION OF SYMBOLS 10 ... Mask 11 ... Mask main body 12 ... Ear hook part 13 ... Left and right seal line 14L ... 1st left fixed part 14R ... 1st right fixed part 15L ... 2nd left fixed part 15R ... 2nd right fixed part 16 ... Upper edge part 17 ... Lower edge portion 17L ... First inclined portion 17R ... Second inclined portion 18 ... Right edge portion 19 ... Left edge portion 20 ... Center plate 21 ... First lower plate 22 ... Second lower plate 23 ... Third lower plate 24 ... Upper plate 25 ... 1st collar 26 ... 2nd collar 27 ... 3rd collar 28 ... 4th collar 31 ... Nose fitter 41 ... 1st tack 42 ... 2nd tack 43a, 43b, 43c ... Tacking spot 44 ... Tack fixing portion 45 ... Upper and lower sealing lines 50 ... User 51 ... Contour 110 ... Mask member

Claims (5)

A non-woven fabric single layer or a plurality of non-woven fabrics are laminated to form a fold portion formed by providing a mountain fold portion and a valley fold portion along the longitudinal direction, and juxtaposed in the short direction perpendicular to the longitudinal direction, In the state where the collar portion is folded, the mask body is formed into a planar polygonal shape and is expanded into a dome shape by spreading,
A first fixing portion provided at each of a left end portion and a right end portion of an upper edge portion of the mask body; and a first fixing portion provided at a left end portion and a right end portion of a lower edge portion of the mask body. A pair of left and right ear hooks to which each end of the ear strap is respectively fixed to two fixing parts;
A first inclined portion and a second inclined portion inclined at the same angle constituting the lower edge portion of the mask body;
With
The length A from the center of the upper left edge first fixing part of the mask body to the center of the upper right edge first fixing part, and the lower edge part from the center of the lower left edge second fixing part of the mask body A sanitary mask characterized by setting a relationship of 0.85 ≦ B / A ≦ 1.05 between the length B to the center of the right second fixing portion. The mask body in which the plurality of flanges are arranged in parallel in the lateral direction,
The length in the short direction from the center of the first fixing part to the center of the second fixing part respectively provided at the right edge and the left edge joined by the upper and lower seal lines in a state where a plurality of flanges overlap each other Between C and the developed vertical length D from the upper edge to the lower edge at the center in the longitudinal direction when the plurality of flanges are expanded in the dome shape, 2.7 ≦ D / C ≦ 4. The sanitary mask according to claim 1, wherein the relationship of 7 is set.   The first inclined portion and the second inclined portion of the lower edge portion are a first folding portion formed on a plate-like portion including the lower edge portion so as to go from the center of the lower edge portion to the left edge portion. The sanitary mask according to claim 1, wherein the sanitary mask is provided by forming a second folding portion formed from the center of the lower edge portion toward the right edge portion.   A tack fixing portion for configuring the first folding portion or the second folding portion is provided on the lower end side of the upper and lower seal lines provided on the left edge portion and the right edge portion, respectively. The sanitary mask according to claim 3.   The sanitary mask according to claim 1, wherein the ear strap of the ear hook is disposed on a surface of the mask main body, and each end of the ear strap is fixed to a corresponding fixing portion.