JP2007159784A - Mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mask widely covering the area around the nose and mouth, forming a sufficient space between the mask and the face of a user, and having the high adhesiveness to the face. <P>SOLUTION: The mask 10 comprises a center panel 22 with an upper end edge 22a, a lower end edge 22b and left and right side edges 22c and 22d, a first panel 24 and a second panel 26 connected to the upper end edge 22a and the lower end edge 22b of the center panel 22 respectively. The first panel 24 and the second panel 26 are folded back into the inside of the center panel 22. The center panel 22 and the first panel 24 are jointed to each other along first joint lines 27a and 27b extending obliquely downward from the upper end edge 22a toward the right side edge 22c and the left side edge 22d of the center panel 22. The center panel 22 and the second panel 26 are jointed to each other along second joint lines 28a and 28b extending obliquely upward from the lower end edge 22b toward the right side edge 22c and the left side edge 22d of the center panel 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mask used for dust prevention, for example, in the medical field, food field, various manufacturing fields, and the like, and more particularly to a sanitary mask, for example, a mask effective for hay fever countermeasure, house dust countermeasure, cold countermeasure, etc. in daily life.

  Increasing the adhesion between the mask and the face is important from the viewpoint of preventing inhalation of fine particles. Various shapes of masks have been proposed for this purpose. For example, a flat center panel having a plurality of edges that define the perimeter, and a fold line, seam, or weld that has a plurality of edges that define the perimeter and is substantially in the same position as one edge of the center panel Alternatively, a flat first panel joined to the center panel through an adhesive portion, and a fold line or seam having a plurality of edges that define a perimeter and substantially in the same position as one edge of the center panel A mask including a flat second panel joined to the central panel via a welded portion or an adhesive portion is known (see Patent Document 1). The mask can be folded and stored flat and forms a cup-shaped air chamber that covers the wearer's nose and mouth when in use. And it has the face contact edge part shorter than the perimeter of a center panel.

  However, there is a demand for a mask that can form a sufficient space between the face and the face. In addition, there is a demand for a mask in which the cup shape further conforms to the unevenness of the face, and the gap generated between the mask and the face is further reduced.

Japanese National Patent Publication No. 11-501840

  Accordingly, an object of the present invention is to provide a mask having further improved performance as compared with the above-described prior art.

The present invention provides a center panel having a top edge and a bottom edge that extend in the lateral direction and face each other, and left and right side edges that extend in the longitudinal direction and face each other, and are connected to the top edge and the bottom edge of the center panel, respectively. A first panel and a second panel,
The first panel is folded inside the center panel with the bent portion positioned at the upper edge of the center panel,
The second panel is folded at the inner side of the center panel with the bent portion positioned at the lower edge of the center panel.
The overlapping center panel and the first panel are joined by a pair of first joining lines extending obliquely downward from the upper edge of the center panel toward the right edge and the left edge, respectively.
By providing a mask in which the overlapping center panel and second panel are joined by a pair of second joining lines extending obliquely upward from the lower edge of the center panel toward the right and left edges, respectively. The goal has been achieved.

  The mask of the present invention covers the periphery of the nose and mouth widely and forms a sufficient space with the face. Therefore, it is easy to breathe and talk, and the space between the face and the mask is less likely to be stuffy. Furthermore, the adhesiveness to the cheek becomes high, and it is difficult to form a gap between the mask and the face, and the inhalation of fine particles such as pollen and dust can be effectively prevented.

  The present invention will be described below based on preferred embodiments with reference to the drawings. FIG. 1 is a front view showing an embodiment of the mask of the present invention. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 1 is a view of the mask 10 as viewed from the side facing outward (hereinafter also referred to as the outside). In FIG. 2, the right side of the paper is the side facing the skin (hereinafter also referred to as the inner side), and the left side of the paper is the outer side.

  The mask 10 shown in FIGS. 1 and 2 includes a mask main body 20 and ear straps 21 attached to the left and right sides of the mask main body 20, respectively. The mask main body 20 has a horizontally long rectangle as a whole. The mask body 20 is constructed by folding a single sheet material, and is substantially flat before use. Here, “one sheet material” means not only a single (ie, one ply) sheet material but also a plurality of (ie, multi-ply) sheets laminated to form an integral structure. Also includes sheet material. The use of a plurality of sheets is advantageous in that it is easy to impart various functions to the mask body 20 by imparting separate functions to each sheet. When using a plurality of sheets, they may be used in a laminated state in which the sheets are joined together or in a state where the sheets are separated from each other. In the present embodiment, the mask 10 is made of a sheet material having a three-layer structure in which three sheets are laminated and integrated.

  The mask body 20 includes a center panel 22 made of a part of the sheet material. The center panel 22 has a horizontally long rectangle, and has an upper end edge 22a and a lower end edge 22b that extend in the horizontal direction and face each other. The center panel 22 has left and right side edges 22c and 22d that extend in the vertical direction and face each other. A first panel 24 made of a part of the sheet material is connected to the upper edge 22 a of the center panel 22. The first panel 24 has a bent portion positioned at the upper end edge 22 a of the center panel 22, and the sheet material is folded inside the center panel 22 and connected to the center panel 22. As a result, the upper half inside the center panel 22 is covered with the first panel 24. The first panel 24 has a first end edge 24a that is in the same position as the upper end edge 22a of the center panel 22, and a second end edge 24b that is a free end edge. Each edge 24a, 24b extends in the lateral direction.

  A second panel 26 made of a part of the sheet material is connected to the lower end edge 22 b of the center panel 22. The second panel 26 has a bent portion positioned at the lower end edge 22 b of the center panel 22, and the sheet material is folded inside the center panel 22 and connected to the center panel 24. As a result, the lower half inside the center panel 22 is covered with the second panel 26. The second panel 26 is a first end edge 26 a located at the same position as the lower end edge 22 b of the center panel 22, a free end edge, and a second end facing the free end edge 24 b of the first panel 24. And an end edge 26b. Each edge 26a, 26b extends in the lateral direction.

  When the first panel 24 and the second panel 26 are formed by folding the sheet material, the folding amounts of the panels 24 and 26 are the same. Accordingly, the panels 24 and 26 are formed symmetrically with respect to the lateral center line (not shown) of the center panel 22. The free edge 24b of the first panel 24 and the free edge 26b of the second panel 26 are located at a predetermined distance (for example, about 2 to 10 mm) from each other. Accordingly, when the mask main body 20 is expanded to have a substantially cup shape, it is easy to insert a finger between the panels 24 and 26, and the operation is facilitated.

  Side sheets 30 are respectively attached to the left and right sides of the mask body 20. The side sheet 30 is formed by folding a narrow strip-shaped vertically long sheet along the longitudinal center line. Specifically, the side portion of the mask main body 20 is sandwiched by the side sheet 30 folded in a V shape along the longitudinal center line, and the side portion and the side sheet 30 are sandwiched between the side portions. And are joined. For the joining, for example, fusion by heat sealing, adhesion using an adhesive, sewing, or the like is used. FIG. 1 shows a state in which the side portion of the mask main body 20 is joined by the side sheet 30 by the intermittent heat seal line 31. The side sheet 30 is used to wrap the side edge of the mask body 20 with the side sheet 30 to prevent the edge from directly touching the skin. Further, it is used for preventing fiber loss and dust generation from the edge portion. Further, the side sheet 30 joins the center panel 22 and the first panel 24 that overlap each other, and the center panel 22 and the second panel 26 that overlap each other, thereby preventing flapping of the sheet material on the side portion of the mask body 20. ing.

  The overlapping center panel 22 and first panel 24 are joined by a pair of first joining lines 27a and 27b extending obliquely downward from the upper edge 22a of the center panel 22 toward the right edge 22c and the left edge 22d, respectively. Yes. Each of the first joining lines 27 a and 27 b extends so that one end portion 27 a ′ and 27 b ′ thereof is located at the upper end edge 22 a of the center panel 22. Further, both end portions 27a 'and 27b' are separated from each other. The ends 27a 'and 27b' are not joined. That is, no joint portion having a certain width exists between the both end portions 27a 'and 27b'. Thereby, the flexible texture of the sheet material constituting the mask body 20 is maintained. Furthermore, since the end portions 27a 'and 27b' are not joined, the wearer's visual field is not obstructed while the mask is worn. If a joint portion having a certain width exists between the both end portions 27a 'and 27b', the joint portion may protrude when the mask is worn, and the wearer's visual field may be hindered.

  The overlapping center panel 22 and second panel 26 are joined by a pair of second joining lines 28a, 28b extending obliquely upward from the lower end edge 22b of the center panel 22 toward the right edge 22c and the left edge 22d, respectively. Yes. Each of the second joining lines 28 a and 28 b extends so that one end portion 28 a ′ and 28 b ′ thereof is located at the lower end edge 22 b of the center panel 22. Further, both end portions 28a 'and 28b' are separated from each other. The end portions 28a 'and 28b' are not joined, and the soft texture of the sheet material constituting the mask body 20 is maintained.

  Each of the first joining lines 27a and 27b extends so that the other end portions 27a "and 27b" terminate at positions inward of the right edge 22c and the left edge 22d of the center panel. Similarly, the second joining lines 28a and 28b also extend so that the other end portions 28a "and 28b" terminate at positions inward of the right edge 22c and the left edge 22d of the center panel. . As a result, the joint lines 27a, 27b, 28a, 28b and the heat seal line 31 of the side sheet 30 are not joined at the left and right side portions of the mask body 20 in an overlapping state. As a result, the rigidity of the left and right side portions of the mask body 20 is prevented from excessively increasing, the gap generated between the face and the mask is reduced, and the wearing feeling of the mask 10 is improved. Furthermore, since there is a distance between the left and right end portions and the left and right side edges, the portion easily adheres to the cheek, and entry of dust and pollen from the outside is effectively prevented.

  Each of the first joining lines 27a and 27b has a gentle curve at the upper edge 22a of the center panel 22 and a position in the vicinity thereof, and is straight at a position in the vicinity of the left and right side edges 22c and 22d of the center panel 22. It has become. On the other hand, each of the second joining lines 28a and 28b has a gentle curve at the lower end edge 22b of the center panel 22 and the position in the vicinity thereof, and at the position in the vicinity of the left and right side edges 22c and 22d of the center panel 22. It is a straight line. Since each joining line has such a shape, the mask body 20 comes into close contact with the wearer's face when the mask 10 is worn.

The sheet material constituting the mask body 20 is not particularly limited as long as it has air permeability. From the viewpoint of ease of processing and economy, it is preferable to use a non-woven fabric. As a nonwoven fabric, various nonwoven fabrics, such as a melt blown nonwoven fabric, a spun bond nonwoven fabric, a thermal bond nonwoven fabric by an air through method, and a spunlace nonwoven fabric, can be used. A desired function can be imparted to the mask body 20 by appropriately combining these various nonwoven fabrics. In this embodiment, a thermal bond nonwoven fabric which is a non-woven fabric having a good touch is used on the innermost side, and a spunbond nonwoven fabric which is a non-woven fabric having a high strength is used on the outermost side. A meltblown nonwoven fabric is used. Although there is no restriction | limiting in particular in the basic weight of each nonwoven fabric, when the softness | flexibility, intensity | strength, etc. of the mask main body 20 are considered, it is preferable that it is about 10-50 g / m < ² >, respectively.

  As shown in FIG. 2, a nose clamp 32 extending in the lateral direction of the mask body 20 is attached in the vicinity of the free edge 24 b of the first panel 24. The nose clamp 32 has a narrow and long shape. The length of the nose clamp 32 is shorter than the lateral width of the mask body 20. The nose clamp 32 is used so that the first panel 24 of the mask main body 20 follows the uneven shape of the nose when the mask 10 is mounted. From this viewpoint, the nose clamp 32 is preferably made of a plastically deformable material. The nose clamp 32 is made of, for example, a thin metal plate.

  The nose clamp 32 can be attached to the outside or the inside of the mask body 20. When the mask main body 20 is composed of a plurality of sheets as in the present embodiment, it can be clamped and fixed between the sheets. In the present embodiment, the nose clamp 32 is disposed between the sheet positioned on the outermost side in the mounted state of the mask 10 and the sheet positioned immediately inside thereof. Both sheets are joined by two intermittent heat seal wires 33 extending in the lateral direction of the mask body, and a cylindrical space is formed between the two heat seal wires 33. A nose clamp 32 is disposed in the cylindrical space.

  FIG. 3 shows a state when the mask 10 having the above configuration is mounted. The figure is a view of the mask 10 as viewed from the inside (that is, from the opposite side to FIG. 1). As shown in FIG. 3, the free end edge 24 b of the first panel 24 and the free end edge 26 b of the second panel 26 in the mask body 20 are gripped by fingers, and the mask body 20 is stretched in the vertical direction. As a result, as shown in the figure, the portion of the first panel 24 located between the pair of first joining lines 27a and 27b is stretched. Similarly, the part located between a pair of 2nd joining lines 28a and 28b in the 2nd panel 26 is extended. As a result, the mask body 20 is deformed into a substantially cup shape that is convex outward. By adjusting the degree of stretching of the panels 24 and 26, the size of the substantially cup shape of the mask body 20 can be adjusted according to the size of the wearer's face. That is, the size adaptability of the mask body 20 is widened. Further, when the mask 10 is mounted, if the free end edge 24b of the first panel 24 and the free end edge 26b of the second panel 26 are respectively pinched with fingers and stretched up and down, the substantially cup-shaped space always faces outward. It is formed in a convex shape so that the inner surface of the space is always located on the mouth side of the wearer. Therefore, the mask 10 can be mounted without making a mistake in the front and back surfaces.

  FIG. 4 shows a state in which the mask 10 of this embodiment is mounted. In the mask 10, the center panel 22 of the mask body 20 covers the wearer's mouth and the periphery thereof. Moreover, the 1st panel 24 has covered the wearer's nose and its circumference | surroundings. Further, the second panel 26 covers the lower jaw of the wearer and the periphery thereof. Since no joint line is formed at the center in the width direction of the upper edge 22a of the center panel 22, the sheet material constituting the mask body 20 maintains the soft texture or the vicinity of the wearer's nose apex or the vicinity thereof. It touches the part. In addition, since no joining line is formed at the center in the width direction of the lower end edge 22b of the center panel 22, the sheet material constituting the mask body 20 is the lower jaw of the wearer or the vicinity thereof while maintaining its soft texture. It touches the part. Therefore, excessive rubbing between the skin and the sheet material is effectively prevented at these portions.

  In particular, since the mask 10 of this embodiment has few contact portions between the mask main body 20 and the wearer's face in the wearing state, the feeling of stuffiness during mask wearing is reduced. In addition, there is an advantage that it is difficult to remove cosmetics when applying makeup. Specifically, the portions of the free end edge 24b of the first panel 24 and the free end edge 26b of the second panel 26 in the mask main body 20 come into contact with the wearer's face substantially linearly.

  Furthermore, in the mask main body 20 of the mask 10 of the present embodiment, the substantially triangular shape surrounded by the first joining lines 27a and 27b, the upper edge 22a, and the side edges 22c and 22d of the center panel 22 is provided. Regions 34a and 34b (see FIG. 1) and substantially triangular regions 35a and 35b (see FIG. 1) surrounded by the second joining lines 28a and 28b, the upper end edge 22a, and the side edges 22c and 22d. Since the wearer's cheeks are covered widely, inhalation of fine particles such as pollen and dust from the outside can be effectively prevented.

  The mask of this embodiment is particularly effective for preventing the inhalation of pollen and house dust, but it can of course be applied to other uses. For example, cold masks, masks used in the medical field including surgery, masks used in the food field such as food manufacturing, cooking, lunch box manufacturing, masks used in clean rooms for semiconductor manufacturing, various manufacturing industries The mask of the present invention can be used as a mask used for dust prevention in the above fields.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, in the above-described embodiment, one end portions 27a ′ and 27b ′ of the first joining lines 27a and 27b are separated from each other at the position on the upper end edge 22a of the center panel 22, but instead of this, One joining line in which the first joining lines 27a and 27b are connected may be formed so that the positions of both end portions coincide with each other. The same applies to the second joining lines 28a and 28b.

  In the above embodiment, the free edge 24b of the first panel 24 and the free edge 26b of the second panel 26 are separated from each other. Instead, the free edge 24b of the first panel 24 is replaced. However, it may be positioned on the second panel 26 beyond the free edge 26b of the second panel 26. Conversely, the free edge 26 b of the second panel 24 may be positioned on the first panel 24 beyond the free edge 24 b of the first panel 24. Or the free edge 24b of the 1st panel 24 and the free edge 26b of the 2nd panel 26 may be located in the position of abutting.

  Moreover, in the said embodiment, although the 1st joining lines 27a and 27b and the 2nd joining lines 28a and 28b had the shape which combined the straight line and the curve, it replaces with this and each joining line is only a straight line. The shape may be sufficient, or the shape only of a curve may be sufficient.

  Further, at the left and right side portions of the mask body, one end of the first joining line is made such that the end portions 27a "and 27b" of the first joining line coincide with the ends 28a "and 28b" of the second joining line. And one second joining line may be connected to form a single joining line.

  Moreover, in the said embodiment, the folding amount of the 1st panel 24 and the 2nd panel 26 is the same, and both panels 24 and 26 are mutually symmetrical with respect to the horizontal centerline (not shown) of the center panel 22. FIG. However, instead of this, the folding amounts of the first panel 24 and the second panel 26 may be different from each other.

It is the front view which looked at one Embodiment of the mask of this invention from the outer side. It is the II-II sectional view taken on the line in FIG. It is the figure which looked at the state when mounting | wearing with the mask shown in FIG. 1 from the inner side. It is a perspective view which shows the mounting state of the mask shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mask 20 Mask main body 22 Central panel 22a Upper end edge 22b Lower end edge 22c Right side edge 22d Left side edge 24 1st panel 24a Free end edge 26 2nd panel 26a Free end edge 27a, 27b 1st joining line 28a, 28b 2nd joining line

Claims (3)

A center panel having an upper end edge and a lower end edge extending in the lateral direction and facing each other, and left and right side edges extending in the vertical direction and facing each other, and a first panel connected to the upper end edge and the lower end edge of the center panel, respectively. A panel and a second panel;
The first panel is folded inside the center panel with the bent portion positioned at the upper edge of the center panel,
The second panel is folded at the inner side of the center panel with the bent portion positioned at the lower edge of the center panel.
The center panel and the first panel that overlap each other are joined by a pair of first joining lines that extend obliquely downward from the upper edge of the center panel toward the right edge and the left edge, respectively.
A mask in which a center panel and a second panel that overlap each other are joined together by a pair of second joining lines that extend obliquely upward from the lower edge of the center panel toward the right and left edges. Each of the pair of first joining lines extends so that one end thereof is positioned at the upper end edge of the center panel, and two end portions positioned at the upper end edge are separated from each other,
The pair of second joining lines extend so that one end thereof is positioned at the lower end edge of the center panel, and the two end portions positioned at the lower end edge are separated from each other. mask. Each of the pair of first joining lines extends so that the other end ends at a position inward from the right edge and the left edge of the center panel.
3. The mask according to claim 1, wherein each of the pair of second joining lines extends such that the other end ends at a position inward of the right and left edges of the center panel.

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