JP2004041504A - Three-dimensional filter for hygiene mask and hygiene mask - Google Patents

Abstract

An object of the present invention is to improve the usability of a filter and a mask by forming a filter in a three-dimensional form separately from a dust-proof cloth of a mask and detachably attaching the filter to the dust-proof cloth.
A filter for a mask is formed by forming the left and right ends of a single sheet of nonwoven fabric having flexibility, air permeability, and filtering properties of fine particles along slits formed in the side ends. The filter 1 is formed into a hood shape by folding and folding, and this filter 1 is detachably attached to the inner surface of a dustproof cloth covering the nose and mouth of the sanitary mask.
[Selection] Fig. 2

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a three-dimensional filter used by being attached to the inner surface of a dustproof cloth covering the nose and mouth of a hygiene mask, and a hygiene mask provided with this filter.
[0002]
[Prior art]
In order to prevent inhalation of harmful fine particles such as dust and pollen floating in the atmosphere, a sanitary mask is generally used. This mask is provided with a dustproof cloth formed of gauze ground or nonwoven fabric, and by covering the nose and mouth with the dustproof cloth, it filters out fine particles such as dust and pollen contained in the intake air. To filter finer fine particles with high precision, a high-performance filter is built in the dust-proof cloth and the filter is used for filtering. Further, a mask in which the dust-proof cloth is formed in a three-dimensional shape with a core material such as plastic has been proposed in order to fit the dust-proof cloth with a built-in filter to the face with a moderate force without difficulty.
[0003]
However, as described above, a three-dimensional mask in which a filter and a core material are built in a dustproof cloth has an advantage of being superior in dustproofness and fit, but is inconvenient to carry because it is easily bulky. There was a problem that it was difficult to replace the filter. In addition, there is also a problem that dirt such as lipstick easily adheres to the inner surface of the dust-proof cloth during use, and if the laundry is washed to remove the stain, the dust-proof cloth is likely to lose its shape or deformation, deteriorate filter performance, and the like. .
[0004]
[Problems to be solved by the invention]
A main object of the present invention is to improve the usability of the filter and the mask by forming the filter in a three-dimensional shape separately from the dustproof cloth and detachably attaching the filter to the dustproof cloth.
[0005]
[Means for Solving the Problems]
According to the present invention, in order to solve the above-mentioned problems, it is formed into a hood shape by bending a single sheet having flexibility, air permeability, and filterability, and is detachable on the inner surface of a dustproof cloth of a sanitary mask. A three-dimensional filter is provided.
[0006]
The three-dimensional filter having the above configuration can be attached to the dustproof cloth of the mask when necessary, and can be removed from the dustproof cloth when not in use, so that it is not only convenient to store and carry, but also easy to use with commercially available masks. It can be used by attaching it to a device, and it excels in usability and versatility. In addition, since the filter can be folded in a flat shape while being assembled in a hood shape, or can be carried in a state where the filter is developed in a flat sheet shape, the filter is not bulky and easy to carry even in a three-dimensional structure. Further, when the filter is stained with lipstick or the like, or when the filtering function is deteriorated due to sufficient collection of fine particles, the filter can be easily replaced.
[0007]
In the present invention, preferably, the sheet is made of a nonwoven fabric, the inner surface in contact with the skin is formed as a substantially smooth surface that prevents fluffing, and the outer surface is a fluffing surface.
[0008]
According to a specific configuration aspect of the present invention, the sheet has a rounded contour shape, and each of the left and right ends has a slit or a folding line extending a fixed length inward from an edge, At the positions of these slits or fold lines, the sheet ends are overlapped so that the overlap margin becomes larger toward the outside, so that the sheet is formed in the above-described hood shape with the central portion depressed.
[0009]
Further, according to the present invention, a mask body including a breathable dustproof cloth covering the nose and mouth, and a band for attaching the dustproof cloth to the face, and has flexibility, breathability, and filterability. A sanitary mask is provided, which is formed in a hood shape by bending one sheet and has a detachable three-dimensional filter on an inner surface of a dustproof cloth in the mask body.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1 and 2 show one embodiment of a three-dimensional filter for a sanitary mask according to the present invention. This filter 1 is composed of one porous flat surface having flexibility, moderate air permeability, and fine particle filtering property. The sheet 2 is formed into a hood shape having a depression 3 for covering the nose and mouth at the center by bending the sheet 2 into a three-dimensional shape.
[0011]
As a material for forming the sheet 2, a nonwoven fabric formed by mechanically, chemically, or thermally treating natural fibers, synthetic fibers, or the like, and arranging or entangle them irregularly is suitable. However, other materials may be used.
[0012]
As shown in FIG. 3, the sheet 2 has a substantially elliptical shape or a contour shape similar thereto, and slits 4 are formed at both left and right end portions extending a predetermined length inward from the edge of the sheet. Have been. Reference numeral 5 denotes a concave portion formed at the center of the upper edge of the sheet 2 to make it easier to fit the nose. Then, the sheet 2 is overlapped with the sheet portions 2a and 2b on both sides of the slit 4 at both left and right end portions such that the overlap margin gradually increases toward the outer portion along the slit 4. The outer periphery of 2 rises, thereby forming the hood-shaped filter 1 having a hollow central portion.
[0013]
At this time, in order to hold the two sheet portions 2a and 2b in a superposed state, a locking hole 6 is provided in one sheet portion 2b, and a hook 7 is provided at the tip of the other sheet portion 2a. The engagement hole 6 is fitted and locked. Therefore, by removing the hook 7 from the locking hole 6, the filter 1 can be developed flat as shown in FIG. Further, as shown in FIG. 4, the filter 1 as assembled in the hood shape can be flattened by being folded in two along the line connecting the slits 4 and 4.
[0014]
The shape of the sheet 2 is not limited to the substantially elliptical shape as described above, but may be any other shape that easily fits the face, such as a circular shape, a shape in which each corner of a rectangle is rounded, or a shape similar thereto. Any shape may be used as long as it has a rounded outline shape.
[0015]
As shown in FIGS. 8 and 9, the filter 1 is mounted on the inner surface of a dust-proof cloth 11 in the mask body 10 and used with the nose and mouth covered with the filter 1. The mask body 10 includes the dustproof cloth 11 formed of a breathable and flexible material such as a gauze ground or a nonwoven fabric, and bands 12 and 12 for holding the dustproof cloth 11 in a mounted state. The filter 1 is mounted on the inner surface of the dustproof cloth 11 with the depression 3 facing the skin. At this time, the filter 1 and the dustproof cloth 11 need not be fixed to each other merely by being kept in contact with each other, but may be locked to each other by a locking means such as a hook-and-loop fastener or a pin if necessary. good. Further, the dustproof cloth 11 is curved along the shape of the filter 1 or the face as shown by a chain line in FIG. 9 in actual use.
[0016]
Thus, by mounting the filter 1 on the inner surface of the dust-proof cloth 11 of the mask main body 10, dust, pollen and the like in the air are filtered by the filter 1, and it is surely prevented from being sucked in with the intake air. In this case, since the filter 1 is curved in a hood shape and does not strongly press against the nose and mouth, conversation can be freely performed even with the mask on. When the filter 1 is stained with lipstick or the like, or when the filtering function is deteriorated by sufficiently collecting fine particles, only the filter 1 can be removed from the dustproof cloth 11 and replaced easily. Furthermore, since the filter 1 can be used as it is mounted on a commercially available sanitary mask, it is easy and versatile.
[0017]
When the filter 1 is not used, it is folded into a flat shape as shown in FIG. 4 while being assembled in a hood shape, or is unfolded into the original sheet 2 as shown in FIG. Sometimes, it may be returned to the three-dimensional hood shape shown in FIGS. 1 and 2 and attached to the dustproof cloth 11 of the mask. Therefore, the filter 1 and the mask body 10 do not become bulky when they are stored or carried.
[0018]
Here, when the above-mentioned sheet 2 is formed of a nonwoven fabric, as shown in FIG. 5, it is desirable to form the inner surface side of the filter in contact with the skin on a substantially smooth surface 15 which prevents fluffing of fibers. Can improve the texture of the skin. In this case, the outer surface of the filter may be in a state in which the fibers are fluffy, or may be a smooth surface similar to the inner surface.
[0019]
As described above, as a method for forming the inner surface of the filter to be a substantially smooth surface, as shown in FIG. 5, the filter is formed by laminating a material 17 having a small amount of fluff inside a normal material 16 having a large amount of fluff, as shown in FIG. There are a method of forming a two-layer structure, a method of solidifying the inner surface of a material having a single-layer structure by embossing or the like, and forming a smooth surface 15.
[0020]
FIGS. 6 and 7 show another method of three-dimensionally forming the flat sheet 2 into a hood-shaped filter 1. In FIG. 6, slits 4 are formed at both left and right end portions of the sheet 2, and a locking member 19 made of a hook-and-loop fastener is provided on one of the sheet portions 2a and 2b on both sides of the slit 4. And the other sheet portion 2a is superimposed on the sheet portion 2b and locked by the locking member 19 in a superposed state. In FIG. 7, a plurality of (three) fold lines 20 are formed at both left and right end portions of the sheet 2 so that the interval between the fold lines 20 gradually increases toward the outside, and the sheet 2 extends along these fold lines 20. The ends are folded. In this case, the folded portion can be locked in that state with an appropriate locking member such as a hook-and-loop fastener.
[0021]
In each of the above embodiments, the contour 2c of the sheet 2 forming the filter 1 is formed as a straight line along the contour of the sheet 2, but as shown in FIG. The line 2d can be formed into a smooth and fine waveform. By making the contour line 2d of such a waveform, the peripheral edge of the filter 1 can be made to contact the skin in a state that it is flexible, elastic, and well fitted to the skin, and the contact mark on the skin is reliably prevented. Can be. At the position of the concave portion 5 that contacts the nose at the top of the sheet 2, it is not necessary to form the contour line in a waveform.
[0022]
【The invention's effect】
As described above, according to the present invention, the filter can be attached to the dustproof cloth of the mask when necessary, and can be detached from the dustproof cloth when not in use. However, it can be easily mounted and used, and is superior in usability and versatility. Moreover, since the filter can be folded in a flat shape while being assembled in a hood shape, or can be carried in a state where the filter is expanded in a flat sheet shape, the filter is not bulky and easy to carry. Further, when the filter is stained with lipstick or the like, or when the filtering function is deteriorated due to sufficient collection of fine particles, the replacement can be easily performed.
[Brief description of the drawings]
FIG. 1 is a front view of a state where a three-dimensional filter according to the present invention is assembled in a hood shape.
FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG.
FIG. 3 is a development view of the filter of FIG. 1;
FIG. 4 is a cross-sectional view showing a state where the filter of FIG. 2 is folded into two.
FIG. 5 is a partially enlarged cross-sectional view showing a configuration of a sheet constituting a filter.
FIG. 6 is a developed view showing another configuration example of the filter.
FIG. 7 is a development view showing still another configuration example of the filter.
FIG. 8 is a front view of a mask equipped with a filter.
FIG. 9 is a sectional view taken along line BB in FIG. 8;
FIG. 10 is a developed view showing another configuration example of the filter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Filter 2 Sheet 2c, 2d Contour line 4 Slit 10 Mask body 11 Dustproof cloth 12 Band 15 Smooth surface 20 Folded line

Claims (4)

A three-dimensional body for a hygiene mask, which is formed in a hood shape by bending a single sheet having flexibility, air permeability, and filterability, and is detachably attached to an inner surface of a dust-proof cloth covering the nose and mouth of the hygiene mask. filter. The three-dimensional filter according to claim 1, wherein the sheet is made of a nonwoven fabric, an inner surface that comes into contact with the skin is formed as a substantially smooth surface that prevents fluff, and an outer surface is a fluff surface. The sheet has a rounded contour shape, and has slits or fold lines extending a predetermined length inward from an edge at each of left and right ends thereof, and the sheet ends at the positions of these slits or fold lines. 3. The three-dimensional filter according to claim 1, wherein the hoods are formed such that the center of the hood is depressed by superimposing them so that the overlapping margin becomes larger toward the outside. A mask body including a breathable dustproof cloth covering the nose and mouth, and a band for attaching the dustproof cloth to the face;
A three-dimensional filter which is formed in a hood shape by bending one sheet having flexibility, air permeability and filterability, and which is detachable on an inner surface of a dust-proof cloth in the mask body;
A sanitary mask comprising:

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