JP3216529U - mask - Google Patents

Abstract

To provide a mask that can be stretched and contracted in accordance with the movement of the wearer's face and can be arranged along the face of the wearer. The mask has a mask body and an ear strap part, and an upward pleat and a downward pleat are folded in the lateral direction. The mask body 2 has a welding region W in which a plurality of welded portions for suppressing the spread of the upward pleats 7 and the downward pleats 8 are formed, and a non-welded region P in which no welded portions are formed. The non-welding region P is disposed near the center of the mask body 2, and the welding region W is disposed on the periphery of the non-welding region P. The welding region W exhibits a region extending in the left-right direction longer in the vicinity of the upper edge and in the vicinity of the lower edge than in the vicinity of the center in the vertical direction of the mask body 2. The vertical length from the upper edge of the upward pleat 7 to the lower edge of the downward pleat 8 is not less than 0.3 times and not more than 0.6 times the longitudinal length of the mask body 2. [Selection] Figure 1

Description

  The present invention relates to a mask that is worn so as to cover a nostril.

  In recent years, masks are frequently used from the viewpoint of protection from pollen and viruses, and hygiene, and the types of masks are diversified. For example, Patent Document 1 describes a mask that includes a substantially rectangular mask body that has been pleated in the lateral direction and ear hooks provided on both sides of the mask body.

  The mask described in Patent Document 1 is folded back with a predetermined width and pleated in the horizontal direction, and a plurality of pleats along the horizontal direction are formed. This pleat is configured to be folded in the opposite direction between the upper half and the lower half of the mask body. The pleat is formed on the upper half of the mask in the vertical direction (center height position). A downward pleat is formed in the lower half of the center in the vertical direction. Patent Document 1 also describes a welded portion 13 that suppresses the spread of pleats.

Utility Model Registration No. 3117500

  In general, the mask covering the nostril is configured so as to cover from the base of the nose to the chin, and the center of the mask in the vertical direction is located below the wearer's nose and at the mouth. Often done. Comparing the upper and lower halves of the mounted mask, the movable range of the face located in the upper half is relatively small, but the mouth, chin, etc. are placed in the lower half and the movable range is relatively large .

  However, in the mask described in Patent Document 1, pleats in opposite directions are formed on the upper half and the lower half of the center in the longitudinal direction of the mask, and the shape of the pleats is vertically symmetrical. The expansion / contraction mode in the upper half and the expansion / contraction mode in the lower half are substantially the same.

  Since the stretchable range is almost the same in the upper half and the lower half of the mask, the stretch range formed by the pleats is not fully utilized in the upper half, or the stretch range formed by the pleats is insufficient in the lower half. There was a risk that it would be difficult to place the mask in correspondence with the movement of the wearer's face.

  Further, Patent Document 1 discloses that the welded portion 13 forms a curve as the second pleat presser wires 11 and 12, but has not yet reached the idea of what kind of curve is appropriate as a mask. There is a description that it extends to the outside of the mask body so as to be convex, but whether it is an arc shape, an elliptical shape, a parabolic shape, or whether it is vertically long or horizontally long Is not done.

  The present invention has been made in view of the above circumstances, and provides a mask that can be easily expanded and contracted according to the movement of the wearer's face and can be arranged along the face of the wearer. This is an exemplary problem.

In order to solve the above problems, a mask as an exemplary aspect of the present invention has the following configuration.
A mask having a mask main body and an ear hook, wherein the mask main body is formed with an upward pleat and a downward pleat folded in a lateral direction, and the upward pleat is a central fold arranged to extend in the lateral direction. Provided on the upper side of the band, the downward pleat is provided on the lower side of the central folding band, and the mask body has a plurality of welding portions arranged to suppress the spread of the upward pleat and the downward pleat. A welded region formed, and a non-weld region in which the upward pleat and the downward pleat can spread without the welded portion being formed in an array, and the non-weld region is near the center of the mask body. And the welding region is arranged at the periphery of the non-welding region, and the welding region is near the upper edge than the center of the mask body in the vertical direction. In the vicinity of the lower edge, a region extending in the left-right direction is exhibited, and the vertical length from the upper edge of the upward pleat to the lower edge of the downward pleat is equal to the vertical length of the mask body. A mask that is 0.3 times or more and 0.6 times or less.

  Further objects and other features of the present invention will become apparent from the preferred embodiments described below with reference to the accompanying drawings.

  The mask according to the present invention has an upward pleat and a downward pleat that expands and contracts in the reverse direction from the center fold belt, so that the mask center fold belt is fitted to a part of the wearer's face, The upper side and the lower side of the mask can be expanded and contracted, and the mask can be expanded and contracted in accordance with the movement of expanding and contracting in the vertical direction such as opening and closing of the wearer's mouth.

  Since a long elliptical welded portion is disposed in the vicinity of the left and right ends of the mask main body, the horizontally long space widened by the action of the welded portion fits the shape of the wearer's lip. Therefore, it is possible to prevent the mask from being displaced at the time of wearing and improve the feeling of attachment.

  Since the vertical length from the upper edge of the upward pleat to the lower edge of the downward pleat is not less than 0.3 times and not more than 0.6 times the vertical length of the mask body, there is a welded portion that each pleat crosses. This is limited to a portion near the right end and the left end of the mask body. Thereby, the spread of each pleat is not restricted more than necessary by the welded portion, and can spread well.

  In addition, by arranging the center of the central folding band in the vertical direction above the center of the entire mask in the vertical direction and providing more downward pleats than upward pleats, the expansion range below the central folding band is increased. It is possible to form a large size, and it can be expanded and contracted in accordance with the movement of the wearer's face and arranged along the face of the wearer.

It is a front view of the mask which concerns on Embodiment 1 of this invention. It is a rear view of the mask shown in FIG. It is AA sectional drawing shown in FIG. It is the side view which showed typically the state with which the mask was mounted | worn. It is the perspective view which showed typically the state with which the mask was mounted | worn. It is a front view of the mask which concerns on the modification of this invention. It is a front view of the mask which concerns on Embodiment 2 of this invention. It is a rear view of the mask shown in FIG. It is BB sectional drawing shown in FIG.

[Embodiment 1]
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a mask according to Embodiment 1 of the present invention, and FIG. 2 is a rear view of the mask shown in FIG. FIG. 3 is a cross-sectional view taken along line AA shown in FIG. In addition, the up-down direction and the left-right direction in the following description are directions in a state where the mask 1 is viewed from the front, and are appropriately illustrated in the drawings.

  The mask 1 according to the first embodiment is a mask that is mounted so as to cover the nostrils and is used to block pollen, viruses, dust, and the like. The mask 1 has a substantially horizontally long rectangular mask main body 2 that covers the nose mouth portion, and an ear hook string portion (ear hook portion) 3 connected to the left end portion 2 a and the right end portion 2 b of the mask main body 2. The mask body 2 is composed of three layers by superposing three nonwoven fabrics. Three sheets of nonwoven fabric are superposed and welded by heat and ultrasonic waves to form one piece of fabric. The welded portion includes a first welded portion 4 disposed along the lateral direction at the upper end 2c of the mask body 2, and a second welded portion 5 provided at the left end 2a and the right end 2b of the mask body 2. Have. The mask body 2 includes a welding region W in which the first welding portion 4 or the second welding portion 5 is disposed, and a non-welding region P configured so that the pleat can be spread without the welding portion being disposed. Have. The non-welding region P is disposed near the center of the mask body 2, and the welding region W is disposed on the periphery of the non-welding region P.

  The first welded portions 4 are provided in two rows at the upper end portion 2 c of the mask body 2. Between the two rows of the first welded portions 4 provided on the upper end portion 2c, a core member 6 for arranging the upper end portion 2c of the mask body 2 along the root of the nose is provided. The second welded portion 5 is provided in a symmetrical shape with the center C2 in the lateral direction of the mask body 2 as an axis. The second welded portion 5 exhibits a region extending in the left-right direction longer in the vicinity of the upper edge and in the vicinity of the lower edge than in the vicinity of the center in the vertical direction of the mask body 2. The second welded portion 5 is formed in an elliptical shape (oval shape) that is longer than the length in accordance with the shape of the mask body 2. Further, on the outer periphery of the second welded portion 5, a plurality of rows of peripheral welded portions 5a are concentrically formed in an approximately elliptical shape such as an elliptical shape or an elliptical arc shape, forming a so-called multiple oval line shape.

  The 1st welding part 4 and the 2nd welding part 5 are comprised by several spot welding. By comprising by several spot welding, it becomes possible to join the nonwoven fabric in multiple places and to suppress the fluff of a fiber. By suppressing fuzz, it is possible to reduce friction on the skin of the wearer and improve the comfort of wearing the mask 1.

  The mask body 2 is formed with a plurality of pleats folded in the lateral direction. The pleat has an upward pleat 7 that protrudes upward as viewed from the front, and a downward pleat 8 that protrudes downward. The upward pleat 7 has a fold projecting upward, and is configured to extend upward when the upper end 2c of the mask body 2 is pulled upward. The downward pleat 8 has a fold projecting downward, and is configured to extend downward when the lower end 2d of the mask body 2 is pulled downward.

  An upward pleat 7 is provided above the center C1 in the longitudinal direction of the mask body 2, and a downward pleat 8 is formed below the center C1. Between the upward pleat 7 and the downward pleat 8, there is provided a central folding band 9 that extends in the lateral direction. On the upper side of the central foldable band 9, there is provided an upper portion 10 that is connected to the central foldable band 9 and extends upward from the central foldable band 9. A lower side portion 11 is provided which is connected to the band 9 and extends downward from the central folding band 9.

  A first folding band 12 is provided so as to straddle the central folding band 9 and the upper part 10. The first folding band 12 has a mountain fold 12a that protrudes upward and a valley fold 12b that protrudes downward. The mountain fold 12 a is the upper edge of the central folding band 9. The mountain folds 12 a of the first folding band 12 are disposed so as to be visible when viewed from the front, and the first folding band 12 constitutes the upward pleat 7.

  Moreover, the 2nd folding belt | band | zone 13 is provided so that the center folding belt | band | zone 9 and the lower side part 11 may be straddled. The second folding band 13 has a mountain fold 13a projecting downward and a valley fold 13b projecting upward. The mountain fold 13 a is the lower end edge of the central folding band 9. The mountain folds 13a of the second folding band 13 are arranged so as to be visible when viewed from the front, and the second folding band 13 constitutes the downward pleats 8. Furthermore, the lower side part 11 located below the second folding band 13 has a third folding band 14 having a mountain fold part 14a projecting downward and a valley fold part 14b projecting upward. Is provided.

  One upward pleat 7 is formed by the first folding band 12, and two downward pleats 8 are formed by the second folding band 13 and the third folding band 14. Therefore, more downward pleats 8 are formed than upward pleats 7, and it is possible to sufficiently secure the expansion / contraction range of the lower half of the mask body 2.

  In the mask 1 shown in FIG. 1, the longitudinal length X from the upper edge of the upward pleat 7 to the lower edge of the downward pleat 8 is about 0.42 times the longitudinal length L of the mask body 2.

  Further, the center C3 in the vertical direction of the central foldable band 9 is disposed above the center C1 in the vertical direction of the mask body 2. By disposing the center C3 in the vertical direction of the central folding band 9 above the center C1 in the vertical direction of the mask body 2, the central folding band 9 is in contact with the wearer's nose, The lower side portion 11 can be extended upward and downward, respectively. The center in the vertical direction of the combined region of the central folding band 9 and the lower side portion 11 is formed so as to substantially coincide with the center C1 in the vertical direction of the mask body 2. The space formed by the central foldable band 9 and the lower side portion 11 as a whole at the time of mounting is a substantially central position in the vertical direction of the entire mask body 2, so that the shape of the space is maintained (when the space is positioned up and down, it is mounted Sometimes the space tends to be crushed) and an improvement in fit (usually the wearer brings the center of the mask body 2 to the position where the space is most desired to be secured).

  4 and 5 are diagrams schematically showing a state in which the mask 1 is mounted, FIG. 4 is a side view, and FIG. 5 is a perspective view. The mask 1 covering the nostril is generally mounted so as to cover from the base of the nose to the chin. Comparing the movable range of the upper and lower faces when the mask 1 is worn, the base of the nose is arranged on the upper side, and the movable range is relatively small. On the other hand, a mouth, a chin, and the like are arranged on the lower side, and the movable range is relatively large.

  By disposing the central folding band 9 above the center C1 in the longitudinal direction of the mask body 2, two downward pleats 8 provided on the lower side of the central folding band 9 are disposed at the lower part of the nose and at the mouth, It can be expanded and contracted with opening and closing of the mouth. Therefore, even when the mouth is opened or closed, the mask 1 can be expanded and contracted correspondingly, and the mask 1 can be arranged along the face.

  Moreover, the valley fold part 12b of the 1st foldable band 12 arrange | positioned ranging over the center foldable band 9 and the upper side part 10 is provided in the position of 40 mm from the upper end edge 2e of the mask main body 2, and is a wearer's face. It is comprised so that it may touch the highest nasal head. Further, the mountain fold portion 12a of the first foldable band 12 protrudes upward from the valley fold portion 12b in the folded state, but the valley fold portion 12b protrudes upward in contact with the nasal head. It extends below the portion 12b and is disposed.

  When the valley fold 12b of the first fold band 12 is configured to contact the nasal head, the mountain fold 12a is disposed with the valley fold 12b at the apex, with a space in front of and below the nose. If the mask 1 is in close contact with the front surface of the lower nose or the periphery of the mouth, the inner surface of the mask body 2 may hit the mouth or the like during breathing or talking, and the wearer may feel uncomfortable. However, by configuring the valley fold 12b to be in contact with the vicinity of the nasal head, a space can be provided between the lower part of the nose and the periphery of the mouth and the inner surface of the mask body 2, and the feeling of pressure by the mask 1 can be reduced. .

  Further, a second welded portion 5 is provided at the left end portion 2a and the right end portion 2b of the mask main body 2, and the second welded portion 5 spreads the pleats of the left end portion 2a and the right end portion 2b of the mask main body 2. Can be suppressed. The mask body 2 can be expanded and contracted in accordance with the movement of the face by the upward and downward spread of the upward pleat 7 and the downward pleat 8 in the non-welded region P. However, if the pleats of the left end portion 2a and the right end portion 2b of the mask main body 2 expand, the entire mask expands and contracts in the vertical direction, and there is a possibility that the mask main body 2 cannot be sufficiently fitted to the wearer.

  However, by providing the second welded portion 5, the left end portion 2a and the right end portion 2b of the mask body 2 can be fitted to the wearer's face as smooth surfaces. On the other hand, the inner part sandwiched between the second welded parts 5 on the left and right sides can secure a space by spreading the pleats when worn. In addition, since the second welded portion 5 has an elliptical shape that is long horizontally in accordance with the shape of the mask body 2, the left end portion 2a and the right end portion 2b of the mask body 2 can be arranged along the swelling of the cheeks, The wearing feeling can be improved by preventing the mask 1 from being displaced at the time of wearing.

  In this way, the left and right sides of the mask body 2 are fitted to the wearer's cheeks by wearing the ear straps 3 and the second welded portions 5 at the left end 2a and the right end 2b of the mask body 2. It is possible to reduce misalignment and reduce friction on the skin due to misalignment of the mask.

  Further, a core member 6 for arranging the mask body 2 along the base of the nose is provided at the upper end 2c of the mask body 2. The core material 6 is a metallic long member, and is configured so that its shape can be easily changed. By providing the core member 6, the upper end portion 2 c of the mask body 2 can be disposed along the root of the nose, and the displacement can be prevented.

  As described above, according to the mask 1 according to the first embodiment, the lower expansion / contraction range of the mask main body 2 can be ensured more than the upper expansion / contraction range, and the movement around the mouth in contact with the lower side of the mask main body 2 is achieved. The mask 1 can be expanded and contracted corresponding to the above. In addition, since the mask 1 can be arranged with a space in front of the lower part of the nose and the periphery of the mouth, the feeling of pressure by the mask 1 can be reduced and the wearing comfort can be improved. Furthermore, since the arc-shaped second welded portion 5 is provided at the left end 2a and the right end 2b of the mask body 2, the left and right ends of the mask body 2 can be fitted to the wearer's cheek.

[Modification]
FIG. 6 is a front view of a mask 101 according to a modification of the present invention. In the mask 101, a central folding band 109 is formed on the mask main body 102. The center C103 in the vertical direction of the central folding band 109 and the center C101 in the vertical direction of the mask main body 102 are shifted in the vertical direction (up and down). The wearer who wants to secure a space around the nose is used so that the center C103 is above the center C101, and the wearer who wants to secure a space around the mouth is up and down so that the center C103 is below the center C101. Can be used in reverse.

  In the mask 101, the third folding band is not formed, and the upward pleat 107 and the downward pleat 108 are one by one. For example, when it is necessary to reduce the size of the mask main body 102, such as a mask for children, the area ratio of the central folding band 109 to the mask main body 102 is increased with one pleat 107 and 108 each. This is suitable when the present invention is applied to a mask having a small area to effectively obtain the effects of the invention.

  As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to these, A various deformation | transformation and change are possible within the range of the summary. For example, although the second welded portion 5 has an elliptical shape, any curve can be used as long as the curve is long in the lateral direction. For example, a horizontally long curved shape in which a parabola is laid down may be used. The second embodiment described below is also included in the gist of the present invention.

[Embodiment 2]
FIG. 7 is a front view of a mask according to Embodiment 2 of the present invention, and FIG. 8 is a rear view of the mask shown in FIG. 9 is a cross-sectional view taken along line BB shown in FIG. In addition, the up-down direction and the left-right direction in the following description are directions when the mask 21 is viewed from the front. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The mask 21 according to Embodiment 2 is a mask that is mounted so as to cover the nostril and is used to block pollen, viruses, dust, and the like. The mask 21 has a substantially horizontally long rectangular mask main body 22 that covers the nose mouth portion, and an ear hook string portion 3 connected to the left end portion 2 a and the right end portion 2 b of the mask main body 22. The mask main body 22 is composed of three layers by overlapping three nonwoven fabrics. Three sheets of nonwoven fabric are superposed and welded by heat and ultrasonic waves to form one piece of fabric. The welded portions are a first welded portion 24 disposed in the lateral direction at the upper end 2c and the lower end 2d of the mask body 2, and a second welded portion provided at the left end 2a and the right end 2b of the mask body 22. 25. The mask body 2 includes a welding region W in which the first welding portion 24 or the second welding portion 25 is disposed, and a non-welding region P configured so that the pleat can be spread without the welding portion being disposed. Have. The non-welding region P is disposed near the center of the mask body 2, and the welding region W is disposed on the periphery of the non-welding region P.

  The first welded portions 24 are provided in two rows at the upper end portion 2c of the mask main body 22, and are provided in two rows at the lower end portion 2d. Between the two rows of the first welded portions 24 provided on the upper end portion 2c, a core member 6 for arranging the upper end portion 2c of the mask main body 22 along the root of the nose is provided. The second welded portion 25 is provided in a bilaterally symmetric shape with the center C2 in the lateral direction of the mask body 22 as an axis. The second welded portion 25 exhibits a region extending in the left-right direction longer in the vicinity of the upper edge and in the vicinity of the lower edge than in the vicinity of the center in the vertical direction of the mask body 2. The second welded portion 25 has an arc shape in which the upper end 2c and the lower end 2d extend inward from the center C1 in the longitudinal direction of the mask body 22.

  The 1st welding part 24 and the 2nd welding part 25 are comprised by several spot welding. By comprising by several spot welding, it becomes possible to join the nonwoven fabric in multiple places and to suppress the fluff of a fiber. By suppressing fuzz, it is possible to reduce friction on the skin of the wearer and improve the comfort of wearing the mask 1.

  Further, the center C3 in the vertical direction of the central foldable band 9 is disposed above the center C1 in the vertical direction of the mask body 2. By disposing the center C3 in the vertical direction of the central folding band 9 above the center C1 in the vertical direction of the mask body 2, the central folding band 9 is in contact with the wearer's nose, The lower side portion 11 can be extended upward and downward, respectively.

  The mask body 22 can be expanded and contracted in accordance with the movement of the face by the vertical spread of the upward pleat 7 and the downward pleat 8. By providing the second welded portion 25, the left end portion 2a and the right end portion 2b of the mask body 22 are made smooth on the face of the wearer while preventing the pleats of the left end portion 2a and the right end portion 2b of the mask body 22 from spreading. Can be fitted. And the inner part pinched by the 2nd welding part 25 on either side can expand a pleat at the time of mounting | wearing, and can ensure space.

  In the mask 1 shown in FIG. 7, the vertical length X from the upper edge of the upward pleat 7 to the lower edge of the downward pleat 8 is about 0.44 times the vertical length L of the mask body 2.

  Further, since the second welded portion 25 has an arc shape extending inwardly from the center C1 in the longitudinal direction of the mask body 22 toward the upper side and the lower side, the left end portion 2a and the right end portion 2b of the mask body 2 are connected to the cheek. It can arrange | position along a bulge, the shift | offset | difference of the mask 1 at the time of mounting | wearing can be prevented, and a mounting feeling can be improved.

  As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to these, A various deformation | transformation and change are possible within the range of the summary. For example, the present invention includes the following purposes.

  An upward pleat is formed on the upper side of the central folding band of the mask, and a downward pleat is formed on the lower side of the central folding band. Therefore, pleats are formed which open in the opposite direction on the upper side and the lower side with the central folding belt as a boundary. The upward pleat has a fold protruding upward when the mask is viewed from the front, and is configured to extend upward when the upper end of the mask is pulled upward. On the other hand, the downward pleat has a fold projecting downward when the mask is viewed from the front, and is configured to extend downward when the lower end of the mask is pulled downward.

  In this way, by providing an upward pleat and a downward pleat with the central fold belt as a boundary, the central fold belt of the mask is fitted to a part of the wearer's face, and the upper side and the lower side are expanded and contracted, respectively. Therefore, the mask can be expanded and contracted in response to a movement that expands and contracts in the vertical direction such as opening and closing of the wearer's mouth.

  The vertical length from the upper edge of the upward pleat to the lower edge of the downward pleat is 0.3 to 0.6 times the vertical length of the mask body, and is 0.4 to 0.5 It is more preferable that the ratio is not more than twice. When a plurality of downward pleats or upward pleats are provided, the upper edge of the upward pleat is the upper edge of the upward pleat provided on the uppermost side, and the lower edge of the downward pleat is the downward pleat provided on the lowermost side. Is the lower edge of. Since the upward pleat and the downward pleat are located in a predetermined range near the center, the welded portion that each pleat crosses is limited to a part of the vicinity of the right end and the left end of the mask body. be able to.

  On the other hand, a plurality of welded portions are provided in the vicinity of the right end portion and the left end portion of the mask body, and the welded portions suppress the spread of the upward pleat and the downward pleat. In the vicinity of the right end portion and the left end portion of the mask body, a smooth surface can be maintained even when the mask is worn, and the welded portion that is the smooth surface can be disposed along the cheek of the wearer. On the other hand, in the non-welded region that is an inner portion sandwiched between the welded portions, a space can be secured by expanding the pleats when the mask is mounted. The welding region exhibits a region extending in the left-right direction longer in the vicinity of the upper edge and in the vicinity of the lower edge than in the vicinity of the center in the vertical direction of the mask body.

  Of the welded portions located in the vicinity of one of the right end and the left end of the mask body, the distance in the lateral direction between the welded portion furthest away from one end and the one end is The distance in the lateral direction between the welded portion farthest from the other end portion and the other end portion of the welded portion located near the other end portion is shortened toward the center in the vertical direction, The welded portion is arranged so as to become shorter toward the center in the vertical direction. That is, the welded portion so that the distance in the lateral direction between the welded portion located farthest from the right end portion and the right end portion of the welded portion located in the vicinity of the right end portion of the mask body becomes shorter toward the center in the vertical direction. Is arranged. Further, among the welded portions located in the vicinity of the left end portion of the mask body, the welding is performed such that the distance in the horizontal direction between the welded portion farthest from the left end portion and the left end portion becomes shorter toward the center in the vertical direction. The part is arranged. The mask main body has a region where no welded portion is formed in the vicinity of the center in the vertical and horizontal directions of the mask main body.

  In FIG. 1, the plurality of welded portions are formed side by side in a substantially arc shape with the upper end portion and the lower end portion extending inward from the center in the longitudinal direction of the mask body. In addition, the number of the welded portions is reduced toward the center in the vertical direction at the right end portion and the left end portion of the mask, and the number of welded portions is the smallest near the center in the vertical direction. Furthermore, the welded portion is preferably symmetrical with respect to the mask body, and is arranged along a substantially elliptical shape or an elliptical shape (oval shape) that is laterally long so as to surround a region where the welded portion is not formed. . Since the wearer's lip shape is generally horizontally long at the center of the face, the horizontally long space expanded by the action of the long elliptical welded part fits the shape of the wearer's lip. . Therefore, it is possible to prevent the mask from being displaced at the time of wearing and improve the feeling of attachment.

  Note that a welded portion (peripheral welded portion) may also be formed around the elliptical welded portion. By forming the peripheral welded portion, the effects exhibited by the welded portion, such as maintaining a smooth surface and improving the fit, are further enhanced.

  In particular, when the peripheral weld is formed in a plurality of rows concentrically around the outer periphery of the elliptical weld, and the peripheral weld has an elliptical shape or an elliptical arc shape with a portion of the ellipse missing (such as this) The shape of the welded part in a plurality of concentric elliptical shapes formed by the welded part and the peripheral welded part is referred to as a “multiple oval line shape”). The effects such as these are further enhanced. Here, “folded in the horizontal direction” means a folded state in which the broken line is in the horizontal direction.

  The center position in the vertical direction of the mask main body and the center position in the vertical direction of the central folding band may be shifted in the vertical direction. If the center position in the vertical direction of the mask body is shifted from the center position in the vertical direction of the central fold band, the mask body can be used upside down in accordance with the fit of the wearer. By using the mask body upside down as appropriate, depending on the wearer who feels more comfortable when the central fold belt is located slightly above and the wearer who feels more comfortable when located slightly below, even more This contributes to the comfort of the wearer.

  For example, by placing the central fold band above the center position in the longitudinal direction of the mask body, the central fold band is arranged around the nose of the wearer, and the upper and lower sides are respectively upward and downward. Can be extended. By positioning the central fold belt around the nose that protrudes most forward in the face of the wearer, a space can be secured around the nose and the wearer's nasal breathing can be facilitated.

  On the other hand, by disposing the central fold band below the center position in the vertical direction of the mask body, the central fold band can be disposed around the wearer's mouth. Comparing the movable range of the upper and lower faces when the mask is worn, the base of the nose is disposed on the upper side, and the movable range is relatively small. On the other hand, a mouth, a chin, and the like are arranged on the lower side, and the movable range is relatively large. Since a space can be secured around the mouth with a large movable range, mouth breathing and conversation can be facilitated.

  In addition, by placing the center of the central fold band in the vertical direction above the center of the entire mask in the vertical direction, the central fold band is arranged around the nose of the wearer, and the upper side and the lower side are respectively arranged. It can be extended upward and downward. Comparing the movable range of the upper and lower faces when the mask is worn, the base of the nose is disposed on the upper side, and the movable range is relatively small. On the other hand, a mouth, a chin, and the like are arranged on the lower side, and the movable range is relatively large.

  By providing more downward pleats located below the central foldable belt than upward pleats located above the central foldable belt, it is possible to form a larger expansion range below the central foldable belt. Thus, it can be expanded and contracted according to the movement of the wearer's face, and arranged along the wearer's face. Here, “folded in the horizontal direction” means a folded state in which the broken line is in the horizontal direction.

  The right end portion and the left end portion of the mask are provided with welded portions that suppress the spread of the upward pleats and the downward pleats, and the welded portions have upper end portions and lower end portions extending inward from the center in the vertical direction. An arc shape is desirable.

  By providing welded portions at the right and left end portions of the mask, the spread of the pleats at the left and right end portions can be suppressed to make a smooth surface, and the weld portion, which is a smooth surface, can be provided along the cheek of the wearer. Can be arranged. On the other hand, the inner portion sandwiched between the welded portions can secure a space by spreading the pleats when worn. Furthermore, since the welded portion has an arc shape in which the upper end portion and the lower end portion extend inward from the center in the vertical direction, the left end portion and the right end portion of the mask can be arranged along the bulge of the cheek, and worn. It is possible to prevent the mask from shifting at the time and improve the wearing comfort.

  The upward pleat is formed by the first folding band folded in the lateral direction, the downward pleat is formed by the second folding band and the third folding band folded in the lateral direction, and the central folding band is Located between the first and second folding belts, an upper part is provided on the upper side of the central folding belt that is connected to the central folding belt and extends upward from the central folding belt. The lower side of the central foldable belt is connected to the central foldable belt and is provided with a lower side extending downward from the central foldable belt. The second fold band is disposed so as to straddle the central fold band and the lower side part, and the third fold band is disposed on the lower side part located below the second fold band. It may be.

  A first fold band is provided across an upper portion extending upward from the central fold belt and a lower portion extending downward from the central fold belt. In addition, by providing the second folding band across the central folding band and the lower side portion, it is possible to form a pleat that expands and contracts in the reverse direction across the central folding band. In addition, by providing a third fold belt that forms a downward pleat on the lower side located below the central fold belt, more downward pleats are formed than upward pleats, and it expands and contracts in response to mouth and jaw movements Thus, it is possible to fit the wearer's face.

  By providing more downward pleats located below the central foldable belt than upward pleats located above the central foldable belt, it is possible to form a larger expansion range below the central foldable belt. Thus, it can be expanded and contracted according to the movement of the wearer's face, and arranged along the wearer's face.

  The plurality of pleats configured by the first fold band, the second fold band, and the third fold band only need to have more downward pleats than upward pleats, for example, above the first fold band. Further, an upward pleat may be formed, and a further downward pleat may be formed below the third folding band to provide two upward pleats and three downward pleats.

  The welding part may be comprised by the some spot welding by an ultrasonic wave.

  The mask is often composed of a resin such as a nonwoven fabric, and the folded mask can be formed by bonding the resin by welding with heat or ultrasonic waves. Moreover, the nonwoven fabric is used abundantly as resin which comprises a mask, and the cloth | dough of a mask is comprised by overlapping several nonwoven fabrics.

  By welding the cloth made of nonwoven fabric by heat or ultrasonic waves in this way, a plurality of nonwoven fabrics can be joined and integrated to form a single mask. In addition, the nonwoven fabric is formed by being entangled without weaving fibers, and fiber fluff may occur on the surface thereof. When such fluff repeatedly rubs against the wearer's face, the wearer may feel uncomfortable.

  However, by forming the welded portion by a plurality of spot welds using ultrasonic waves, the nonwoven fabrics can be joined at a plurality of locations, and the fuzz of the fibers can be suppressed by the welded portion. In particular, the welded portion is a portion arranged along the wearer's cheek, and by suppressing the fluffing at this portion, it is possible to reduce the friction against the cheek and improve the wearing feeling.

  In the vicinity of the upper end edge of the mask body, a core member for arranging the upper end edge of the mask body along the nose of the wearer may be provided along the left-right direction.

  By providing the core material in the vicinity of the upper edge of the mask, the upper edge of the mask can be arranged along the base of the nose, and the position of the upper edge of the mask can be prevented from being displaced from the base of the nose. By preventing the displacement of the upper edge of the mask, it is possible to appropriately arrange the upper edge of the mask on the nasal head and to ensure a space below the nasal head.

  The center position in the vertical direction of the region including the center fold band and the third fold band may substantially coincide with the center position in the vertical direction of the mask body.

  Since the first folding band is provided across the central folding band and the upper side part, and the second folding band is provided across the central folding band and the lower side part, the central folding band and the third folding band are provided. The region including the third folding band and a part of the first folding band and the second folding band are included. Since the center in the vertical direction of the area including the central fold band and the third fold band is arranged to overlap the center in the vertical direction of the entire mask, the area including the central fold band and the third fold band is the mask. Located in the center of the whole.

  Accordingly, one upward pleat and two downward pleats are arranged in a fixed area including the center of the entire mask, and a sufficient expansion / contraction range below the upper expansion / contraction range can be secured in the fixed area. It is possible to expand and contract in accordance with the movement around the nose where the folding band is arranged.

  Also, by not forming pleats above the first fold band and below the third fold band, the upper and lower ends of the mask are fitted to the wearer as smooth surfaces by the same width, and the inner part is expanded and contracted. It is possible to secure a space corresponding to the movement of the face while fitting to the face of the wearer.

  The first folding band has a mountain fold part arranged at the upper end edge of the central folding band and projecting upward, and a valley fold part arranged at the upper part and projecting downward, and a mask 40 mm or more and 45 mm or less may be sufficient as the distance from the upper end edge of this to a valley fold part.

  Providing a mountain fold at the upper edge of the center fold belt and forming a valley fold at the upper side extending upward from the center fold belt to form an upward pleat with the mountain fold projecting upward Can do. In general, the mask covering the nostril is worn so as to cover from the base of the wearer's nose to the chin, but the nasal head is located in the range of 40 mm to 45 mm from the upper edge of the mask. There are many. The nasal head is the most protruding part of the face part to which the mask is attached.

  By setting the distance from the upper edge of the mask to the valley fold portion to be 40 mm or more and 45 mm or less, the valley fold portion can be arranged on the nasal head of the wearer. A mountain fold is provided below the valley fold, and the mountain fold is disposed (floating) away from the wearer than the valley fold. By disposing the valley fold portion on the most protruding nasal head, it is possible to secure the space around the nasal head by placing the mountain fold portion so as to float more than the valley fold portion. Therefore, it is possible to improve the wearing comfort of the wearer by providing a space in front of the nostril or mouth without attaching the mask to the nostril or mouth below the nasal head.

C1, C101: Vertical center of the mask body
C2: Center in the horizontal direction of the mask body
C3, 103: Center in the longitudinal direction of the central folding band
W: Welding area P: Non-welding area
1, 21, 101: Mask 2, 22, 102: Mask body
2a: left end 2b: right end
2c: upper end 2d: lower end
2e: Upper edge 3: Ear hook string (ear hook)
4, 24: First welded portion 5, 25: Second welded portion
5a: Surrounding welded portion 6: Core material
7, 107: Upward pleats 8, 108: Downward pleats
9, 109: Central folding band 10: Upper part
11: Lower side 12: First folding belt
12a: Mountain fold 12b: Valley fold
13: Second folding band 13a: Mountain fold
13b: Valley fold 14: Third fold belt
14a: Mountain fold part 14b: Valley fold part

Claims (8)

A mask having a mask body and an ear hook, wherein the mask body is formed with an upward pleat and a downward pleat folded in a lateral direction;
The upward pleats are provided on the upper side of the central fold belt that extends in the lateral direction,
Downward pleats are provided on the lower side of the central fold belt,
The mask body includes a weld region formed by arranging a plurality of welds for suppressing the spread of the upward pleat and the downward pleat, and the upward pleat and the downward facing without being formed by arranging the welds. Having a non-welded area in which the pleats can spread,
The non-welding region is disposed near the center of the mask body, and the welding region is disposed on the periphery of the non-welding region,
The welding region presents a region extending in the left-right direction longer in the vicinity of the upper edge and in the vicinity of the lower edge than in the vicinity of the center in the vertical direction of the mask body,
A mask in which a longitudinal length from an upper end edge of the upward pleat to a lower end edge of the downward pleat is not less than 0.3 times and not more than 0.6 times a longitudinal length of the mask body. The non-welded region has a substantially elliptical shape that is long horizontally,
2. The mask according to claim 1, wherein the plurality of welded portions are arranged along a substantially elliptical shape that extends laterally surrounding the non-welded region.   The mask according to claim 1 or 2, wherein a center position in the longitudinal direction of the mask body and a center position in the longitudinal direction of the central fold band are shifted in the longitudinal direction. The upward pleat is formed by a first folding band folded laterally,
The downward pleat is formed by a second folding band and a third folding band folded in the lateral direction,
The central fold band is located between the first fold band and the second fold band;
On the upper side of the central foldable band, an upper part that is connected to the central foldable band and extends upward from the central foldable band is provided.
The lower side of the central foldable band is provided below the central foldable band, and a lower side portion extending downward from the central foldable band is provided.
The first folding band is disposed so as to straddle the central folding band and the upper side part,
The second folding band is arranged to straddle the central folding band and the lower side part,
The mask according to any one of claims 1 to 3, wherein the third folding band is disposed on a lower side portion located below the second folding band.   The mask according to claim 5, wherein a center position in a vertical direction of a region including the central fold band and the third fold band substantially coincides with a center position in a vertical direction of the mask main body.   The said welding part is a mask of any one of Claims 1-5 comprised by the some spot welding by an ultrasonic wave.   The core material for arrange | positioning the upper end edge of this mask main body along a wearer's nose is provided in the left-right direction in the vicinity of the upper end edge of the said mask main body. The mask according to claim 1. The first folding band has a mountain fold part arranged at the upper end edge of the central folding band and projecting upward, and a valley fold part arranged at the upper part and projecting downward. And
The mask according to any one of claims 1 to 7, wherein a distance from an upper end edge of the mask to the valley fold portion is 40 mm or more and 45 mm or less.

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