WO2022131599A1 - Mask having large filtering surface, and side-opening bag-type filter therefor - Google Patents

Abstract

The present invention relates to a mask having a large filtering surface, which is provided so that breathing of a wearer is convenient, air flow through a gap between the face and a filtering material is suppressed, and fogging up of glasses is prevented. The mask comprises a side-opening bag-type filter including: an inner filtering material having an open hole, which encompasses the mouth and the nostrils, and providing an inner filtering surface arranged to be spaced apart from the face of a wearer; and an outer filtering material connected to the inner filtering material to form a closed inner space that excludes the open hole, and providing an outer filtering surface that is opposite to the inner filtering surface.

Description

Mask with large filtering surface and side-opening encapsulated filter therefor

It relates to the improvement of the mask of the present invention, and in particular, it relates to the improvement of the mask used to prevent fine dust, viruses, or harmful bacteria from entering the human body through the respiratory tract.

In recent years, wearing a mask has become commonplace due to the increase in fine dust and the spread of the corona virus.

The mask has a basic configuration in which hooks for hanging over the wearer's ears are installed on both sides of the filtering material that can cover the mouth and nose. In general, the filtering material consists of a multi-layer structure such as an outer material, a filter, and a lining. In some cases, an intermediate material may be further included between the outer and inner linings. In general, the filter uses a nonwoven fabric having a filter function to filter out particles and the like from the outside. Non-woven fabrics are electrostatically treated, polypropylene resin is spun with melt blown (MB) equipment, and then it is made into a cloth shape. In addition, those manufactured using spunbond equipment together (Spunbond-Meltblown-Spunbond, SMS) may also be used. Polypropylene filter nonwoven fabric (SMS) is used as a filter and can serve as either an outer or lining.

Masks of various functions have been developed to have new functions in this basic configuration. As an example, in the published patent publication of Publication No. 10-2010-0055715 (title of invention: mask, inventor: Lee Seong-yeop), it is reported that the mouth and nostrils are in direct contact with the skin due to the rigidity of the ergonomically manufactured nonwoven fabric. By forming a space between the respirator by preventing It is disclosed that has the effect of blocking the inflow into the human body.

However, the conventional mask as described above has the following three major problems.

First, in general, the filtering material of the mask should have a dense configuration and airtightness to filter out viruses or harmful bacteria during breathing, and sufficient air for the wearer's breathing should be able to enter and exit smoothly. Since the two are contradictory to each other, it is difficult to sufficiently satisfy both at the same time.

Second, since the conventional mask has a structure that covers a large part of the face with a filtering material, it is inconvenient and causes a lot of skin troubles, such as sweating a lot in the hot season.

Third, in the conventional mask, when the external temperature drops a lot, the exhaled breath rises directly upward through the gap between the face and the filtering material due to the structure of the mask, and the glasses are fogged, causing visual discomfort.

An object of the present invention is to provide a mask that can reduce discomfort during breathing while maintaining sufficient airtightness by increasing the amount of air entering through the filter by dramatically increasing the filtering surface area compared to the conventional mask.

Another object of the present invention is to provide a mask capable of reducing skin troubles by minimizing the area of the face covered by the mask.

Another object of the present invention is to provide a mask that prevents the exhaled breath from rising directly upward through the gap between the face and the filtering material so that the glasses are not fogged even when the external temperature is low.

A mask having a large filtering surface according to the present invention comprises: a frame formed with a path enclosing the mouth and nostrils and having openings therein; a contact member coupled to the frame and in close contact with the wearer's face; An inner filtering material having an open hole communicating with the opening, coupled to the frame and disposed on the outer surface side of the frame to provide an inner filtering surface spaced apart from the wearer's face and connected to the inner filtering material, except for the open hole is a side-open-sealed filter comprising an outer filtering material defining an enclosed interior space and providing an outer filtering surface opposite the inner filtering surface; And it is installed on the frame and is configured to include a ring that can be hung on the wearer's ear.

The side-open sealing type filter may include a side filtering material connecting the inner filtering material and the outer filtering material to provide a side filtering surface.

A first coupling part in the form of a groove or a projection is formed along the outer surface of the frame, and a second coupling part in the shape of a projection or groove coupled to the first coupling part is provided, so that the edge of the inner filtering material adjacent to the opening hole is removed. It is preferable to include a coupling member for fixing to the outer surface of the frame.

It is more preferable that the coupling member is integrally attached to the inner filtering material so that the side-opening sealing type filter can be easily replaced.

Optionally, a coupling member for detachably coupling the side-opening encapsulated filter to the frame is included, wherein the coupling member is integrally attached along an edge of the side-opening encapsulated filter adjacent to the open hole, the At least one of the frame and the coupling member is a magnet, and the other one is made of a magnet or a magnetic material, so that the side-open sealing type filter can be easily replaced.

The magnet may be a plastic magnet.

Optionally, a mask having a large filtering surface according to the present invention has an open aperture surrounding the mouth and nostrils and is connected to an inner filtering material and an inner filtering material that provides an inner filtering surface disposed spaced apart from the wearer's face a side-opening encapsulated filter comprising an outer filtering material which is formed to form an enclosed inner space except for the open hole and provides an outer filtering surface opposite to the inner filtering surface; and a pair of rings connected to the inner filtering material at a position closer to the opening than the outer edge of the inner filtering material to be hung on the wearer's ear.

Preferably, a reinforcing sheet together with a pair of rings is integrally attached along an edge of the inner filtering material adjacent to the opening hole, and a contact member in close contact with the wearer's face is attached to the surface of the reinforcing sheet. .

The side-opening sealed filter according to the present invention includes an inner filtering material having an open hole surrounding the mouth and nostrils and providing an inner filtering surface spaced apart from the wearer's face, and the inner filtering material is connected to the open hole Except for forming an enclosed interior space and comprising an outer filtering material that provides an outer filtering surface opposite the inner filtering surface.

It is preferable that a coupling member for detachably coupling to a predetermined frame is installed along the inner filtering material around the opening hole.

According to the present invention, since it provides a filtering surface of about 1.5 to 2.5 times that of a conventional mask, the wearer's breathing is comfortable.

According to the present invention, it is possible to suppress the ingress of air between the gap between the wearer's face and the filtering material.

According to the present invention, the area that the mask covers the wearer's face is small, so that skin troubles hardly occur.

Further, according to the present invention, the fogging of the glasses is prevented by suppressing the exhalation from rising toward the glasses through the gap between the face and the filtering material.

According to the present invention, it can be configured to reuse the frame by replacing only the side-opening encapsulation filter.

1 is a perspective view of a mask having a large filtering surface according to the present invention;

Figure 2 is an exploded perspective view of the mask of Figure 1;

3 is a cross-sectional view of the mask along II-I of FIG. 1 ;

4 is an exploded perspective view showing another example of a mask having a large filtering surface according to the present invention;

5 is a view for explaining a method of making the side-open sealing type filter of FIG. 4;

6 is a cross-sectional view of another example of a mask having a large filtering surface according to the present invention;

7 is a cross-sectional view of the side-opening encapsulation filter of FIG. 6 separated from the frame;

8 is a cross-sectional view showing a modified example of the side open sealing type filter shown in FIGS. 4 and 5;

9 is a cross-sectional view of another embodiment of a mask having a large filtering surface according to the present invention;

10 is a cross-sectional view showing another embodiment of a mask having a large filtering surface according to the present invention.

100: a mask with a large filtering surface 110: a frame

112: opening 116, 117: first coupling part

117a: magnet 120: contact member

130: hook 140: side open sealing type filter

142: open hole 144: inner filtering material

146: outer filtering material 148: side filtering material

150: coupling member 152: second coupling part

152: second coupling part 152a: plate-shaped magnetic material

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

1 is a perspective view of a mask having a large filtering surface according to the present invention, FIG. 2 is an exploded perspective view of the mask of FIG. 1 , and FIG. 3 is a cross-sectional view of the mask taken along line II of FIG. 1 .

1 to 3 , a mask 100 having a large filtering surface according to the present invention has a frame 110 . The frame 110 is formed in a path surrounding the mouth and nostrils of the mask 100 wearer, and has an opening 112 formed therein. A groove 114 is preferably formed along the surface facing the face of the frame 110, and a contact member 120 made of a sponge or the like and in close contact with the wearer's face is coupled to the groove 114. do.

In addition, the frame 110 of this embodiment is formed with a first coupling portion 116 in the form of a protrusion along the outer surface. The rings 130 are installed on the left and right sides of the frame 110 to be hung on the wearer's ears.

The mask 100 having a large filtering surface according to the present invention has an open hole 142 communicating with an opening 112 and a side-opening encapsulation filter 140 coupled to the frame 110 . The side-open sealing filter 140 is disposed on the outer surface of the frame 110 in a state coupled to the frame 110 to provide an inner filtering surface spaced apart from the wearer's face. An inner filtering material 144 and an inner filtering material ( An outer filtering material 146 connected directly or indirectly to the inner filtering material 144 to form a closed inner space except for the open hole 142 together with the inner filtering material 144, and providing an outer filtering surface opposite the inner filtering surface ) is included.

The side-open sealing filter 140 of this embodiment has a hexahedral shape by providing a side filtering material 148 that connects the inner filtering material 144 and the outer filtering material 146 to provide a side filtering surface.

The side-open sealing type filter 140 shown in FIGS. 1 to 3 is in contact with the outside air on the inner surface, the outer surface, and the side surface, respectively, so that it has a very large filtering surface of 1.5 times or more, up to about 2.5 times compared to the conventional mask. can provide

The mask 100 having a large filtering surface according to the present invention includes a coupling member 150 having a groove-shaped second coupling part 152 coupled to a protrusion-shaped first coupling part 116 . The coupling member 150 is for fixing the edge of the inner filtering material 144 adjacent to the opening hole 142 to the outer surface of the frame 110 .

That is, the coupling member 150 of this embodiment is inserted into the side-opening encapsulation filter 140 through the opening hole 142 and the second coupling part 152 with the inner filtering material 144 interposed therebetween. It is coupled to the first coupling unit 116 through the side opening sealing type filter 140 is fixed to the frame (110). The first coupling part 116 and the second coupling part 152 may be deformed into various shapes, and the groove shape and the protrusion shape may be formed by changing positions.

The mask 100 having a large filtering surface according to the present invention as described above is in close contact with the wearer's face along the circumference of the mouth and nostrils through the contact member 120 to cover only a minimal part of the face, and exhalation is filtered with the face. It is prevented or suppressed as much as possible from rising upward through the gaps between the materials.

4 is an exploded perspective view showing another example of a mask having a large filtering surface according to the present invention, and FIG. 5 is a view for explaining a method of making the side-opening encapsulation filter of FIG. 4 .

In some cases, a plate-shaped magnetic body 152a may be attached as the second coupling part 152 of the coupling member 150 along the circumference of the open hole 142 of the inner filtering material 144 . In addition, according to the present invention, the inner filtering material 144 of the "C" cross-sectional shape and the outer filtering material 146 of the "C" cross-sectional shape are arranged to face each other, and as shown in FIG. 5 , the upper and lower sides facing each other When the edges are folded inward or outward and adhered to each other to form a plate-shaped tube with both left and right sides open, and the left and right edges of the inner filtering material 144 and the outer filtering material 146 are adhered to each other, Fig. 4 It is possible to make a side-opening encapsulated filter 140 in the form as shown in . As the plate-shaped magnetic material 152a, a plate-shaped iron plate or a rubber magnet may be used.

The side-open sealing type filter 140 as shown in FIG. 4 can provide a filtering surface that is about 1.5 to 2 times larger than that of a conventional mask.

And a magnet 117a is installed on the outer surface of the frame 110 as the first coupling portion 117, and a contact member 120 made of a sponge or the like is attached to the surface facing the face. A magnet made of rubber may be used as the magnet 117a. In some cases, when the magnetic material 152a of the side-open sealing type filter 140 is a magnet, a magnetic material other than a magnet such as an iron plate may be attached to the outer surface of the frame 110 .

That is, at least one of the frame 110 and the coupling member 150 may be a magnet, and the other may be formed of a magnet or a magnetic material other than a magnet.

As shown in FIGS. 4 and 5 , when the mask 100 having a large filtering surface according to the present invention is configured, the side-opening encapsulation filter 140 can be replaced very easily.

The rest is the same as described above with reference to FIGS. 1 to 3 .

6 is a cross-sectional view showing another example of a mask having a large filtering surface according to the present invention, and FIG. 7 is a cross-sectional view showing the side-opening encapsulation filter of FIG. 6 separated from the frame.

In some cases, the contact member 120 may be attached along a surface facing the face of the frame 110 through an adhesive or thermal fusion. And the first coupling part 116 in the form of a groove is formed on the outer surface of the frame 110, and the coupling member 150 having the second coupling part 152 in the shape of a protrusion is integrally formed with the side open sealing filter 140. may be attached to

The mask 100 having a large filtering surface according to the present invention shown in FIGS. 6 and 7 also has all of the advantages described above, and can be easily accessed through the first coupling part 116 and the second coupling part 152 if necessary. The side open sealing type filter 140 can be replaced and installed.

The cross-sectional shape of the protrusion-shaped second coupling part 152 may be formed in other cross-sectional shapes, such as a square, not a circle. In this case, the cross-sectional shape of the groove-shaped first coupling part 116 formed on the outer surface of the frame 110 should also be formed to match the cross-sectional shape of the second coupling part 152 .

The rest is the same as described above.

FIG. 8 is a cross-sectional view showing a modified example of the side open sealing type filter shown in FIGS. 4 and 5 .

In some cases, the side-opening encapsulated filter 140 has both upper and lower edges of the inner filtering material 144 and the outer filtering material 146 facing outward, and the left and right both edges are bonded to each other in a state where they are adhered to each other. can be configured.

In addition, the frame 110 may be configured by being directly attached to the side-opening encapsulation filter 140 , or may be configured as described with reference to FIGS. 1 to 7 .

9 is a cross-sectional view showing another embodiment of a mask having a large filtering surface according to the present invention.

In some cases, the side-opening encapsulation filter 140 may constitute the mask 100 having a large filtering surface according to the present invention in a form integrally attached to the outer surface of the frame 110 . In this embodiment, it is not possible to replace the side-open sealing type filter 140 in the frame 110 and install it.

The rest is the same as described above.

10 is a cross-sectional view showing another embodiment of a mask having a large filtering surface according to the present invention.

In some cases, the mask 100 having a large filtering surface according to the present invention can be constructed without a frame and coupling members. That is, the mask 100 having a large filtering surface according to the present invention can be configured by directly connecting the ring 130 for hanging on the wearer's ear or other body parts to the inner filtering material 144 . In this case, the ring 130 should be connected to a position close to the opening hole 142 rather than the outer edge of the inner filtering material 144 .

A reinforcing sheet 144a made of a plastic plate such as a polypropylene sheet together with a pair of rings 130, preferably, a reinforcing sheet 144a made of the same material as a filter, is adjacent to the opening hole 142 of the inner filtering material ( 144) can be integrally attached along the edge. In addition, it is preferable to attach the contact member 120 such as a sponge in close contact with the wearer's face to the surface of the reinforcing sheet facing the wearer's face.

In this configuration, the frame made of plastic or the like described in the previous embodiment is not required. Even if the mask 100 having a large filtering surface according to the present invention is configured in this way, most of the effects of the present invention described above can be exhibited as they are.

The present invention has the potential to be used to make a mask for blocking dust or viruses from entering the human body through the respiratory system.

Claims (10)

An inner filtering material having an open hole surrounding the mouth and nostrils and providing an inner filtering surface spaced apart from the wearer's face and connected to the inner filtering material to form a closed inner space except for the open hole and an outer filtering material providing an outer filtering surface opposite the inner filtering surface. [2] The filter according to claim 1, wherein a coupling member for detachably coupling to a predetermined frame is installed along the inner filtering material around the opening hole. The side-opening encapsulation filter of claim 1; and and a pair of loops connected to the inner filtering material at a position closer to the opening than to the outer edge of the inner filtering material and adapted to be hung over the wearer's ear. [4] The method of claim 3, wherein a reinforcing sheet together with a pair of rings is integrally attached along an edge of the inner filtering material adjacent to the open hole, A mask having a large filtering surface, characterized in that a contact member is attached to the surface of the reinforcing sheet in close contact with the wearer's face. a frame formed with a path enclosing the mouth and nostrils and having an opening therein; a contact member coupled to the surface of the frame and in close contact with the wearer's face; An inner filtering material having an open hole communicating with the opening, coupled to the frame and disposed on the outer surface side of the frame to provide an inner filtering surface spaced apart from the wearer's face and connected to the inner filtering material, except for the open hole is a side-open-sealed filter comprising an outer filtering material defining an enclosed interior space and providing an outer filtering surface opposite the inner filtering surface; and A mask having a large filtering surface, characterized in that it includes a ring mounted to the frame and adapted to be hung over the ear of a wearer. [Claim 6] The mask having a large filtering surface according to claim 5, wherein the side-open sealing type filter comprises a side filtering material connecting the inner filtering material and the outer filtering material to provide a side filtering surface. [6] The method of claim 5, wherein a first coupling part in the form of a groove or a protrusion is formed along the outer surface of the frame, Large filtering comprising a coupling member for fixing the edge of the inner filtering material adjacent to the open hole to the outer surface of the frame by having a second coupling part in the form of a projection or groove coupled to the first coupling part A mask with a surface. [8] The mask having a large filtering surface according to claim 7, wherein the coupling member is integrally attached to the inner filtering material so that the side-open sealing type filter can be easily replaced. [Claim 7] The method of claim 6, wherein a first coupling part in the form of a groove or a protrusion is formed along the outer surface of the frame, Large filtering comprising a coupling member for fixing the edge of the inner filtering material adjacent to the open hole to the outer surface of the frame by having a second coupling part in the form of a projection or groove coupled to the first coupling part A mask with a surface. [10] The mask having a large filtering surface according to claim 9, wherein the coupling member is integrally attached to the inner filtering material so that the side-open sealing type filter can be easily replaced.

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