KR20200023348A - A Dustproof Mask and Manufacturing method of thereof - Google Patents

Abstract

The present invention relates to a dust prevention mask comprising: a mask main body covering the face of a user and forming a breathing space, where breathing is conducted by the respiratory organ of the user, between the inner surface thereof and the face of the user; a sealed pouch-shaped air filter unit coupled to one side of the external surface of the mask main body at the front side of the mask main body, and filled with an external air, of which contaminants are removed, as passing the external surface made of a filter material; an intake valve unit installed in a coupling unit of the mask main body and the air filter unit in order to supply air inside the air filter unit to the breathing space during inhalation; and an exhaust valve unit installed at the other side of the external surface of the mask main body in order to discharge the air inside the breathing space to the outside during exhalation. In addition, the air filter unit is coupled to be separated from the external surface of the mask main body such that an air path, where the external air flows, is formed between the air filter unit and the mask main body. Therefore, the dust prevention mask can prevent intake of outside contaminants during breathing even through a simple structure, and can significantly reduce breathing inconvenience due to mask wearing.

Description

A dustproof mask and manufacturing method of

The present invention relates to an anti-vibration mask and a method of manufacturing the same, and more particularly, a sealed bag in which a rim is in close contact with a user's face and detachably coupled to an outside of the mask body and filled with purified outside air. It is provided with a separate air filter unit in the inhalation to supply the purified outside air to the user and the air generated when exhaling is configured to discharge to the outside by preventing the inhalation of contaminants contained in the outside air during breathing It relates to a dust mask and a method for manufacturing the same that can minimize respiratory discomfort.

In general, masks are known in various structures depending on the environment and purpose of use, which are used to prevent inhalation of contaminants harmful to the human body such as dust, yellow dust, fine dust, and the like contained in the air.

The mask according to the prior art mainly consists of a structure that covers the user's face using a cloth for filtering contaminants, such a mask is not only inconvenient breathing because the filter cloth is in close contact with the respiratory organs such as the user's mouth or nose, but also permeate the pollutants There was a disadvantage that it is easily made.

In order to solve the problems as described above, a mask having a structure in which an inner skin such as a filter nonwoven fabric is fused in an outer shell formed of a synthetic resin cap has been developed. It is a structure that inhales the air flowing into the endothelium through the air and then exhales into the mask, so that the intake air and the exhaust air are mixed together to reduce the oxygen concentration inside the mask as well as the exhalation to the outside of the mask. There was a problem that was difficult to keep breathing smooth.

Therefore, in order to solve the problems of the prior art, as disclosed in the following [Ref. 1], a dustproof filter is mounted near the front or side of the mask and is similar to a gas mask for inhaling only the air filtered by the dustproof filter. Although a dust mask has been developed, the dust mask is not only complicated in structure and expensive, but also has a shape similar to that of a gas mask, which constrains its activity when worn by industrial workers or general users. There was a problem that greatly fell.

[Document 1] Korean Utility Model Model No. 2009-0010452 (Published October 14, 2009)

The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is a mask body that is close to the rim of the user and the outer surface of the mask body is detachably coupled and filled with purified outside air is filled The air filter part of the bag shape is provided separately to supply the purified external air to the user when inhaling and to discharge the air generated when exhaling to the outside to prevent inhalation of external pollutants during breathing by a simple structure. In addition, by minimizing the mixing of the intake air and exhaust air inside the mask to provide a dust mask and a method for manufacturing the dust can significantly reduce the discomfort caused by wearing the mask.

In addition, another object of the present invention is installed so that the air filter unit is spaced apart from the outer surface of the mask body by a predetermined distance to the outside through the air passage formed by the spaced space between the air filter unit and the mask body as well as the front of the air filter unit. It is to provide an anti-vibration mask and a method of manufacturing the same that is configured to be introduced into the air filter unit to increase the area of the outside air is introduced into the air filter unit to further reduce the user's respiratory discomfort.

In order to achieve the above object, a dust mask according to the present invention, a mask body for covering the face of the user, and forming a breathing space which is a space in which the user's breathing is made between the inner surface and the user's face, A sealed bag-shaped air filter unit coupled to one side of an outer surface of the mask body in front of the mask body and filled with outside air from which contaminants are removed while passing through an outer surface made of a filter material, the mask body and the air filter An intake valve unit which is installed to be coupled to a part of the air filter unit to supply air to the breathing space when inhaled, and is installed on the other side of the outer surface of the mask body to discharge air inside the breathing space to the outside when exhaled An exhaust valve portion operable to operate, wherein the air filter portion is formed on an outer surface of the mask body. It is coupled to be spaced apart between the air filter part and the mask main body characterized in that the air passage is formed as the external air flow.

In addition, the air filter unit, the first filter member disposed in front of the mask body, and disposed between the mask body and the first filter member, the first filter member and the edge portion is bonded to each other to form the sealed bag shape And a second filter member to be formed, wherein the first filter member removes contaminants contained in external air introduced from the front of the air filter unit, and the second filter member is connected to external air introduced from the air passage. It is characterized by removing the contained contaminants.

In addition, a first intake hole communicating with an inner space of the air filter unit and a tubular first coupling member protruding from an edge of the first intake hole are formed at a central portion of the second filter member. A second intake hole communicating with the breathing space and a tubular second coupling member protruding from an edge of the second intake hole are formed, and the air filter unit is formed by coupling the first coupling member and the second coupling member to the mask. Is coupled to the body, the intake valve portion is characterized in that installed in the middle of the first coupling member or the second coupling member.

In addition, the air filter unit is detachably coupled to the mask body by the coupling of the coupling groove formed in the inner diameter of the first coupling member and the coupling protrusion formed in the outer diameter of the second coupling member in a shape corresponding to the coupling groove. The intake valve unit may have a mesh-shaped valve seat formed in the middle of the second coupling member, an intake valve seated on the valve seat to open when inhaled, and a fixing member fixing the intake valve to one side of the valve seat. Characterized in that configured to include.

In addition, the mask body is characterized in that the non-ventilated air does not flow, the outer surface is formed with a plurality of rib-shaped spacer protruding to maintain the separation distance with the air filter.

In addition, the contact member coupled to the rim of the mask body, and the wearing straps are further coupled to both ends of the air filter unit, when the user wears the dust mask using the wearing straps the rim of the mask body Is in close contact with the user's face by the contact member, the edge of the air filter portion is characterized in that the air passage is maintained from the user's face.

In addition, the method for manufacturing a dust mask according to the present invention comprises a first step of forming a sealed bag-shaped air filter part, a dome-shaped mask body in which an intake valve part and an exhaust valve part are respectively coupled to an intake hole and an exhaust hole formed on an outer surface thereof. And a third step of coupling the air filter unit to an outer surface of the mask body in front of the mask body, wherein the first step comprises: forming a first filter member having a dome shape; Step 1-1, Step 1-2 for forming a dome-shaped second filter member having a through hole formed in the center portion, by joining the edge portion of the first filter member and the second filter member to each other and the first filter member and the inside And forming a sealed bag shape in which a space filled with external air introduced through the second filter member is formed, wherein the third step includes a through hole edge of the second filter member. in The tubular first coupling member protruding from the inlet hole of the mask body protrudes from the inlet valve portion and is formed in such a manner as to couple to the second tubular coupling member installed in the middle, and the air filter part is formed from the outer surface of the mask body. Is coupled to be spaced apart is characterized in that the air passage between the air filter portion and the mask body is formed to flow the outside air.

As described above, the anti-vibration mask according to the present invention and a method of manufacturing the same are hermetically sealed bag shape in which the rim is in close contact with the user's face and detachably coupled to the outside of the mask body and filled with purified outside air. The air filter unit is provided separately to supply the user with purified air when inhaling and the air generated when exhaling is configured to discharge to the outside, there is an advantage that can prevent the inhalation of external pollutants when breathing by a simple structure. .

In addition, the anti-vibration mask according to the present invention and a method for manufacturing the same to minimize the mixing of the intake air and exhaust air with each other in a closed space formed between the mask body and the user's face by the above structure. In addition, because it is a method of inhaling the purified air pre-filled inside the air filter unit during inhalation, due to the mask wearing in contrast to the mask according to the prior art, which must inhale the outside air through the ventilation hole of the mask body every breath There is an advantage that can further reduce breathing discomfort.

In addition, the anti-vibration mask according to the present invention and a method for manufacturing the air filter unit is installed so that a predetermined distance away from the outer surface of the mask body is formed by a space spaced between the air filter unit and the mask body as well as the air filter unit front. Since the outside air is also introduced into the air filter unit through the air passage, the area in which the outside air flows into the air filter unit is significantly increased, thereby further reducing the user's respiratory discomfort.

1 is a perspective view showing the overall configuration of a dust mask according to an embodiment of the present invention;
Figure 2 is a view showing a wearing state of the dust mask shown in Figure 1,
3 is a cross-sectional view of the AA portion of FIG.
4A and 4B are detailed enlarged views of “a” and “b” portions of FIG. 3, respectively.
FIG. 5 is a view for explaining an operation state of the dust mask shown in FIG. 1; and
FIG. 6 is a process chart for explaining a method of manufacturing the dust mask shown in FIG.

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

1 is a perspective view showing the overall configuration of a dust mask according to an embodiment of the present invention, Figure 2 is a view showing a wearing state of the dust mask shown in FIG.

3 is a cross-sectional view of the AA portion of FIG. 2, and FIGS. 4A and 4B are detailed enlarged views of the " part " and " B " portions of FIG. 3, respectively, and FIG. 5 is dustproof shown in FIG. It is a figure for explaining the operation state of the mask.

The anti-vibration mask according to the present invention covers a face F of a user and forms a breathing space 20 between an inner face and the face F of the user, the mask body 10 of the mask body 10. The air filter unit 30 coupled to one side of the outer surface of the mask body 10 from the front, and the air inside the air filter unit 30 to the breathing space 20 when inhaling, the breathing space ( 20) is configured to include an air guide member (40, 50) that is operated to discharge the air inside.

At this time, the mask body 10 as in the conventional mask to perform the function of preventing the contaminants such as yellow dust, dust, fine dust contained in the outside air directly into the respirator of the user, cotton, non-woven fabrics, etc. It may be made of a cloth material or a synthetic resin material such as silicone or polyester.

In addition, the mask body 10 may be formed using a shape memory material that can maintain a deformed shape according to the user's face (F) bend so that the edge portion is easily in close contact with the user's face (F) as needed. It may be configured.

In addition, the mask body 10 according to the present invention is a synthetic resin so that only the outside air filled in the air filter unit 30 in a state in which the contaminant is removed as described below when inhaled into the breathing space 20. It is preferable to be made of a non-breathable material, such as, when the cloth is made of a non-woven fabric, the outer surface is preferably coated with a non-breathable material such as silicon.

In addition, the edge portion of the mask body 10 may further include a close contact member 12 in order to be in close contact with the user's face (F), in the interior of the mask body 10 by the above configuration The breathing space 20, which is a space where the user's respirator is breathed, may be configured as a closed space separated from the outside (ie, the outside of the mask body).

On the other hand, the air filter unit 30 is coupled to one side of the outer surface of the mask body in front of the mask body 10, the outside air is configured to be filled with the inner space 35 through the outer surface exposed to the outside.

To this end, the outer surface of the air filter unit 30 is made of a filter material that can filter the contaminants contained in the outside air, the outside air is a contaminant is removed while passing through the outer surface of the air filter unit 30 In the state is filled in the internal space 35 of the air filter unit 30.

In addition, the air filter unit 30 is detachably coupled to one side of the outer surface of the mask body 10 in a manner as described below, and the rear surface facing the mask body 10 is separated from the outer surface of the mask body 10. The air passage 36 through which external air flows is formed between the air filter unit 30 and the mask body 10 by being spaced apart by a predetermined distance.

In this case, a plurality of rib-shaped spacers 11 may be formed on the outer surface of the mask body 10 to maintain the separation distance from the air filter unit 30.

The dust mask according to the present invention by the above configuration is installed so that the air filter unit 30 is spaced from the outer surface of the mask body 10 by a predetermined distance, as well as the front of the air filter unit 30 as well as the air filter unit ( The outside air is also introduced into the air filter unit 30 through the air passage 36 formed by the spaced space between the mask body 10 and the mask body 10. The area in which air is introduced will increase significantly.

Therefore, the dust mask according to the present invention can be easily filled with the outside air in the inner space 35 of the air filter unit 30 as the area in which the outside air is introduced when compared with the mask according to the prior art There is an advantage that can reduce the user's breathing discomfort due to wearing the mask.

In this case, the air filter unit 30 may be formed in various shapes within the range of performing the same function, but more preferably formed in a shape corresponding to the outer surface shape of the mask body 10.

In this embodiment, as an example, the outer surface of the mask body 10 has a convex dome shape in a forward direction of the user's face F, and the air filter unit 30 is exposed to the outside and the mask body 10. The rear surface of the air filter unit 30 is formed to have a convex dome shape in the front direction of the user face F, respectively, in order to secure the internal space 35 of the air filter unit 30. It is preferable that the curvatures of the and back are configured differently.

In addition, although the air filter part 30 may be configured as a single member having a bag shape, in the present embodiment, the air filter part 30 is disposed in front of the mask body 10 for convenience of molding as an example. And a second filter member 32 disposed between the mask body 10 and the first filter member 31.

In this case, the first filter member 31 and the second filter member 32 are joined to each other to form a first bonded portion 33a to form a sealed bag shape as described above, the first and second Bonding of the filter members 31 and 32 may be preferably implemented using a thermal bonding method, an ultrasonic fusion method, or an adhesive.

By the configuration as described above, the first filter member 31 removes contaminants contained in the outside air introduced from the front of the air filter unit 30, and the second filter member 32 is The contaminants contained in the outside air introduced from the air passage 36 are removed.

In addition, the inner surfaces of the first and second filter members 31 and 32 are in contact with each other on the inner surface of the second filter member 32 to prevent encroachment of the internal space 35 filled with external air. The protrusion 32d may protrude, and the spaced protrusion 32d may be formed on the inner surface of the first filter member 31 or both on the inner surface of the first and second filter members, if necessary.

In addition, the separation protrusion 32d is made of a material or shape having an elastic force, such as a spring, if necessary, so that the air of the internal space 35 flows into the breathing space 20 while inhaling the first filter member. After the gap between the 31 and the second filter member 32 is narrowed (that is, after the volume of the internal space is reduced), the first filter member 31 and the first filter member are formed by the elastic restoring force of the spacer 32d. The spacing between the two filter members 32 may be increased again so that the inflow of outside air is further facilitated.

In this case, the ends of the separation protrusion 32d are opposed to each other in the state where the distance between the first filter member 31 and the second filter member 32 is not narrowed (that is, a normal state other than inhalation). It is preferable that the present embodiment is configured to be in contact with the inner surface of the first filter member.

In addition, in the case of the first filter member 31 and the second filter member 32, the material or shape is configured to retain the elastic force, so that the volume of the internal space 35 is reduced by inhalation. Thereafter, the shape may be restored again in the direction in which the volume of the internal space 35 increases by its elastic restoring force, so that the inflow of external air may be further facilitated.

In addition, in order to supply air filled in the internal space 35 of the air filter unit 30 to the breathing space 20 when the air filter unit 30 and the mask body 10 are combined and inhaled, as described below. In the central portion of the second filter member 32, a first intake hole 32a communicating with the internal space 35 of the air filter unit 30, and a tubular projecting outward from an edge of the first intake hole 32a. The first coupling member 32b is formed.

At this time, the coupling groove 32c may be formed in the inner diameter of the first coupling member 32b for coupling with the mask body 10 as described below.

In addition, the first coupling member 32b may be firmly coupled to the edge portion of the first intake hole 32a by a thermal bonding method, an ultrasonic welding method, or an adhesive method. May be combined in a removable manner.

In addition, at both ends of the air filter unit 30, a second joint part 33b partially connecting the first filter member 31 and the second filter member 32 to couple the wearing strap 60 is provided. Further, in the present embodiment, as an example, the second joint part 33b is configured to be connected to the first joint part 33a at both ends of the air filter part 30, respectively.

At this time, the wear strap 60 may be formed in the form of a strap or band that is worn on both ears or head of the user, in this embodiment, the wear strap 60 is configured to be worn on both ears of the user. .

As such, when the user wears the anti-vibration mask using the wearing strap 60, the edge of the mask body 10 is in close contact with the face F of the user by the contact member 12, The edge of the air filter unit 30 (that is, in the present embodiment, the first bonding unit) may be spaced apart from the user's face F to maintain the air passage 36.

On the other hand, the air guide member 40, 50, the intake valve unit 40 for guiding or blocking the outside air filled in the internal space 35 of the air filter unit 30 to the breathing space 20, and the It consists of an exhaust valve unit 50 for guiding or blocking the air inside the breathing space 20 to the outside.

In order to install the intake valve part 40 and the exhaust valve part 50, a second intake hole 41 communicating with the breathing space 20 is formed at one side of the outer surface of the mask body 10, and the second intake air. A tubular second coupling member 42 protruding from the edge of the ball 41 is formed, and the exhaust hole 51 communicating with the breathing space 20 on the outer surface of the mask body 10 and the exhaust A tubular exhaust valve housing member 52 protruding from the edge of the ball 51 is formed.

In the present embodiment, as an example, the second intake hole 41 is formed at the center of the mask body 10 to be formed at a position corresponding to the first intake hole 32a, and the exhaust hole 51 is a mask. It was configured to be formed under the main body 10.

In this case, a coupling protrusion 42a having a shape corresponding to the coupling groove 32c is formed at an outer diameter of the second coupling member 42. The coupling protrusion 42a is coupled to the coupling groove 32c by the coupling protrusion 42a. The air filter part 30 is detachably coupled to the mask body 10 by combining the first and second coupling members 32b and 42.

In this case, the coupling groove 32c and the coupling protrusion 42a may be formed in an annular shape. If necessary, the coupling groove 32c and the coupling protrusion 42a may be formed in a plurality of groove-protruding structures spaced apart from each other along the circumferential direction.

The external air filled in the internal space 35 of the air filter unit 30 by the above configuration communicates with the breathing space 20 through the coupling portions of the first and second coupling members 32b and 42 having a tubular shape. Done.

At this time, the intake valve portion 40 is installed in the coupling portion of the mask body 10 and the air filter portion 30, that is, the coupling portion of the first and second coupling members 32b and 42, and the air is inhaled. It operates to supply the air inside the filter unit 30 to the breathing space 20, in this embodiment, the intake valve 40 is configured to be installed in the middle of the second coupling member 42 as an example. If necessary, it may be installed in the middle of the first coupling member 32b.

In the present embodiment, the intake valve portion 40 is a mesh-shaped intake valve seat 40a formed in the middle of the second coupling member 42, an intake valve seated on the intake valve seat 40a to open when inhaled. 40b, and an intake valve fixing member 40c for fixing the intake valve 40b to one side of the intake valve seat 40a.

As shown in FIG. 5, the intake valve 40b is opened by inhalation force of the user's respirator when inhaled, and closed by the elastic pressure of the air discharged from the user's respirator when exhaled. do.

To this end, the intake valve 40b is preferably made of a material or structure having a certain elastic restoring force, similar to the exhaust valve 50b described later.

In addition, the exhaust valve unit 50 is operated to discharge the air inside the breathing space 20 to the outside when exhaling, for this purpose, the exhaust valve unit 50 is in the middle of the exhaust valve housing member 52 The exhaust valve seat 50a having a mesh shape is formed, the exhaust valve 50b seated on the exhaust valve seat 50a so as to open when exhaled, and the exhaust valve 50b is fixed to one side of the exhaust valve seat 50a. It is configured to include an exhaust valve fixing member 50c.

By the configuration as described above, the exhaust valve 50b is closed by the suction force of the user's respirator and its elastic force when inhaling as shown in FIG. 5, and is operated to open by the pressure of the air discharged from the user's respirator when exhaling. The exhaled air discharged through the exhaust valve 50b is discharged to the outside through the air passage 36.

In the present embodiment, as an example, the intake valve 40b and the exhaust valve 50b are configured in the form of a flip valve having a central portion fixed to the intake valve seat 40a and the exhaust valve seat 50a, respectively. Within the range, the intake valve 40b and the exhaust valve 50b may be implemented in various forms.

The dust mask according to the present invention configured as described above is detachably coupled to the outside of the mask body 10 and the outside of the mask body 10, the edge of the mask is in close contact with the user's face is sealed It is provided with a separate bag-shaped air filter unit 30 to supply the purified air to the user when inhaling, and the air generated when exhaling is configured to discharge to the outside, so that the inhalation of external pollutants when breathing by a simple structure There is an advantage that can be prevented.

In addition, the dust mask according to the present invention, the intake air and the exhaust air in the inside of the breathing space 20 is a closed space formed between the mask body 10 and the user's face (F) by the structure as described above In addition to minimizing the mixing, inhalation of the purified air pre-filled in the air filter unit 30 during the inhalation, so that each time to breathe in the outside air through the vent hole of the mask body 10 In contrast with the mask according to the technology there is an advantage that can further reduce the discomfort caused by wearing the mask.

FIG. 6 is a process chart for explaining a method of manufacturing the dust mask shown in FIG. In the case of the anti-vibration mask according to the present invention, first, the first filter member 31 and the second filter member 32 having a dome shape are molded (S10 and S20).

In this case, the steps S10 and S20 are performed by a thermoforming method when the first and second filter members 31 and 32 are made of a filter material such as a nonwoven fabric, and the second filter before and after the thermoforming in the S20 step. The process of drilling the first intake hole (32a) to the member 32 and the process of coupling the first coupling member (32b) by a thermal bonding method or the like to the edge portion of the first intake hole (32a) do.

In addition, when the step S10 and the step S20 is completed, the air filter portion 30 of the sealed bag-shaped by forming the first joint portion 33a by joining the edge portions of the first and second filter members 31 and 32 with each other. To form (S30), the bonding of the first and second filter members 31 and 32 may be made by a thermal bonding method, an ultrasonic fusion method, or a method using an adhesive as described above.

In addition, in the step S30, in order to couple the wearing strap 60, the process of forming the second bonding portion 33b at both ends of the air filter unit 30 and the wearing strap 60 to the second bonding portion 33b. The bonding process is additionally performed.

Meanwhile, as described above, when the steps S10 to S30 are completed, the mask body 10 is formed (S40). As described above, when the mask body 10 is made of a non-breathable synthetic resin material such as silicon, Step S40 may be preferably implemented by a conventional injection process.

In addition, when the mask body 10 is made of a cloth material such as a nonwoven fabric, the mask body 10 is manufactured in a dome shape by thermoforming, etc., and then the outer surface of the mask body 10 is coated with a non-breathable material. May be additionally performed.

At this time, the step S40 is to perform a process for drilling the second intake hole 41 and the exhaust hole 51 before and after molding the mask body 10.

In addition, when the step S40 is completed, the mask body 10 by coupling the second coupling member 42 and the exhaust valve housing member 52 to the edge portions of the second intake hole 41 and the exhaust hole 51, respectively. The intake valve unit 40 and the exhaust valve unit 50 are combined at step S50.

In this case, an intake valve portion 40 and an exhaust valve portion 50 are respectively provided in the middle of the second coupling member 42 and the exhaust valve housing member 52 having a tubular shape. 42 and the intake valve part 40, the exhaust valve housing member 52, and the exhaust valve part 50 are integrally coupled to the edge portions of the second intake hole 41 and the exhaust hole 51, respectively. More preferably it is provided in the form of a module.

At this time, the process of coupling the second coupling member 42 and the exhaust valve housing member 52 to the edge portions of the second intake hole 41 and the exhaust hole 51, respectively, the mask body 10 is a synthetic resin material In the case of consisting of an insert injection method can be preferably implemented as an example, when the mask body 10 is made of a cloth material such as a non-woven fabric, such as a thermal bonding method, ultrasonic welding method, or a method using an adhesive as an example It can be preferably implemented by.

In addition, if necessary, the second coupling member 42 having the intake valve portion 40 installed therein and the exhaust valve housing member 52 having the exhaust valve portion 50 installed therein may be replaced later. In order to do so, each of the second intake hole 41 and the exhaust hole 51 may be coupled in a removable structure using an uneven method or interference fit method.

As described above, when the molding of the air filter unit 30 and the mask body 10 is completed by the steps S10 to S30 and S40 to S50, respectively, by coupling the coupling groove 32c and the coupling protrusion 42a. By coupling the first coupling member 32b and the second coupling member 42, the air filter unit 30 is detachably coupled to the front of the mask body 10.

In addition, in the present exemplary embodiment, the case in which the mask body 10 is molded after the air filter unit 30 is molded by the steps S10 to S30 has been described. However, if necessary, the mask body 10 is first molded. Of course, it may be configured.

10: mask body 12: contact member
20: breathing space 30: air filter
31: first filter member 32: second filter member
36: air passage 40: intake valve portion
50: exhaust valve portion 60: wear strap

Claims (1)

A first step of molding the air bag of the sealed bag shape;
A second step of forming a dome-shaped mask body in which an intake valve part and an exhaust valve part are respectively coupled to the intake hole and the exhaust hole formed in the outer surface; And
And a third step of coupling the air filter part to an outer surface of the mask body in front of the mask body,
In the first step, the first-first step of forming the dome-shaped first filter member, the first-second step of forming the dome-shaped second filter member having a through hole formed in the center, the first filter member and the first Comprising the first to third steps to form a sealed bag shape formed by joining the edge portion of the filter member to each other to form a space filled with the outside air introduced through the first filter member and the second filter member therein. Become,
In the third step, the tubular first coupling member protruding from the through hole edge of the second filter member is coupled to the tubular second coupling member protruding from the edge of the intake hole of the mask body and the intake valve part is installed in the middle. Is done in a way that
The air filter unit is coupled to be spaced apart from the outer surface of the mask body is a method of manufacturing a mask for dust, characterized in that an air passage for the flow of external air is formed between the air filter unit and the mask body.

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