KR20140137207A - The Dust Respirator and The Manufacturing Method of the Same - Google Patents

Abstract

The present invention relates to a dustproof mask and to a manufacturing method of the dustproof mask, which performs an ultrasonic welding process with respect to a flat plate-type main body part. The manufacturing method of the dustproof mask comprises the steps of (a) ultrasonically cutting a flat plate-type main body part which comprises an inner cover, a filter member and an outer cover and consists of a first main body and a second main body, wherein the middles of the first main body and the second main body are integrally formed and the main body part has a first part where the tops of the first main body and the second main body are separated from each other and a second part where the bottoms of the first main body and the second main body are separated from each other; (b) ultrasonically bonding the first main body and the second main body on the first part of the flat plate-type main body part which has been cut in step (a) and ultrasonically bonding the first main body and the second main body on the second part; (c) ultrasonically welding the whole edge of the main body part; (d) adhering an adhered member to the inside and outside of the first part where the first main body and the second main body have been bonded after the ultrasonic welding process in step (c); and (e) attaching fastening bands to the left and right of the main body part. Accordingly, the present invention can prevent the malfunction of a filter of the dustproof mask caused by a thermocompression bonding process or a pressure process.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dust mask,

The present invention relates to a dust-proof mask and a method of manufacturing the same. More particularly, the present invention relates to a dust-proof mask that performs ultrasonic welding to a flat plate-like main body and a method of manufacturing the same.

In general, toxic gases are generated in the working environment of metal processing plants such as paper mills, textile factories, quarries, etc., and various chemical plants, welding and plating. In addition to being able to induce respiratory diseases of the human body such as diesel lungs in which workers continuously absorb such dusts and toxic gases, in addition to being fatal to the human body, wear a dust mask to protect their health from such harmful environments have

That is, the dust mask is to be worn on the face to prevent harmful substances generated from polluted areas, various emergency situations, industrial fields where air may be polluted, and power plants that may be exposed to radioactive materials from entering the human body.

The dustproof mask includes a main body which is in close contact with the face while covering the nose and mouth, and a hook band for fixing the main body to the wearer while closely contacting the face. The main body may be formed of a resin type and may be formed so that the replaceable type of purifying filter portion is coupled to the main body or may include a filter layer in the main body itself.

A disposable dust mask containing a filter layer in the body itself is generally fabricated by laminating three fiber layers.

For example, as shown in FIG. 1, in the conventional dustproof mask, two rubber bands 4 are bound by a staple 6 to form a loop on the side of a face cover 2 made of a semi- The metal shape regulating strip 8 is ultrasonically bonded so that the upper side of the face cover 2 coincides with the nose contour of the wearer and the inside of the face cover 2 corresponding to the shape regulating strip 8 And a sponge 10 that is in contact with the nose is attached to the side surface.

Examples of such techniques are also described in documents 1 and 2 below.

For example, the following Patent Document 1 discloses a first step of forming first and second semicircular main body portions by respectively adhering to each other so as to face each other with a filter layer and a mesh layer corresponding to each other, A second step of attaching the first joint portions defined by a part of the arc shape to each other to form a main body and a third step of attaching the second joint portion defined by the edges other than the first joint portion and the eyepiece portion contacting the wearer's face, A method for manufacturing a dust mask is disclosed.

Further, in Patent Document 2, a first lamination roller and a first lamination ultrasonic wave hone opposed to the upper blade supply portion are formed, and a first cutting roller and a first cutting ultrasonic wave hone are opposed to one side of the first lamination roller and a first cutting ultrasonic wave horn. The second cutting roller and the second cutting ultrasonic horn are formed on one side of the first cutting roller and the second cutting ultrasonic horn. The third cutting roller and the third cutting ultrasonic horn are opposed to each other. A third cutting roller and a third cutting ultrasonic horn are opposed to each other on one side thereof, and a fourth joining roller and a fourth joining edge ultrasonic hone opposed to each other are formed on the product forming part, and a fourth cutting roller and a fourth cutting roller And a cutting ultrasonic horn are formed opposite to each other.

Korean Patent Laid-Open Publication No. 2013-0005749 (published on Jan. 16, 2013) Korean Registered Patent No. 10-0783311 (registered on December 3, 2007)

However, the dustproof mask manufactured by the conventional technique as described above has a circular cup-shaped thermal mold attached to the press to form a circular cup shape as shown in Fig. 1, A dust-proof mask is molded in cup shape, followed by whisking. Rubber band, exhaust valve assembly, printing, and packaging. Such a manufacturing method is formed by using heat, so there is a problem that the electrostatic filter is deformed by thermocompression so that the dust collecting efficiency drops from 99.5% to 85%.

Further, even if an ultrasonic bonding is attempted with a round cup-shaped rim portion, the filter is pressed to maintain a circular cup shape, so that the filter performance is deteriorated due to pressure, and it is difficult to use in a general situation. In other words, since the shape thereof is maintained in a semicircular shape, the shape is rough and limited to work use. Also, since the finished product is maintained in a semicircular state, there is a problem that it is inconvenient for storage and management.

In addition, since it is formed simply of an inner skin, a filter, and an outer skin, there is no problem with inhalation, but there is also a problem that a glass cloth is generated in glasses when an operator wearing glasses wears out.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dust mask and a method of manufacturing the same that can maintain the initial performance of a filter.

It is another object of the present invention to provide a dust mask and a method of manufacturing the same that can easily store a mask after fabrication.

It is another object of the present invention to provide a dust mask and a method of manufacturing the dust mask that eliminate the inconvenience of the wearer due to inhalation and exhalation.

Another object of the present invention is to provide a dust mask which can be used as a general sulfur-use mask or a winter mask and a method for manufacturing the same.

In order to accomplish the above object, a dust mask according to the present invention comprises: (a) an inner skin, a filter member, and an outer skin, the dust mask being formed of a first body and a second body, Wherein the first body and the second body are separated from each other and a second portion of the first body and the second body are separated from each other, (B) ultrasonic bonding the first body and the second body in the first portion of the flat plate-like body portion cut in step (a), and bonding the first body and the second body in the second portion; (C) ultrasonic welding the entire edge of the main body portion in the step (a); (d) after ultrasonic welding in the step (c), bonding the first main body and the second main body Wherein the first and second portions (E) attaching a hooking band to the left and right of the main body part.

Further, in the method of manufacturing a dust mask according to the present invention, the width of the first portion is formed to be larger than the width of the second portion.

According to another aspect of the present invention, there is provided a dust-proof mask comprising:

In the dust-proof mask according to the present invention, the filter member is formed of a carbon filter and a dust-proof filter.

In the dust-proof mask according to the present invention, the main body portion is provided with a vent hole that opens from the outer shell toward the inner skin when the wearer inhales, and the vent hole is cut off when the wearer has an exhalation.

The dust mask according to the present invention is characterized in that a coating portion having no breathability is provided at the upper end portion of either the inner skin or the outer skin of the body portion.

As described above, according to the dust-proof mask and the method of manufacturing the same according to the present invention, the ultrasonic welding is performed on the plate-shaped main body to prevent the function of the filter from being deteriorated by the thermocompression bonding or the pressurizing process, It is possible to maintain the initial performance state and to improve the anti-vibration function.

Further, according to the dust-proof mask and the manufacturing method thereof according to the present invention, since the dust-proof mask is formed in the shape of a general mask, it is also possible to use it for general use of sulfur and for cold weather in winter.

Further, according to the dust-proof mask and the manufacturing method thereof according to the present invention, since the main body can be folded and managed, it is also possible to obtain an effect that storage and management are easier than the conventional semicircular dust-proof mask.

1 is a perspective view showing the structure of a conventional dustproof mask,
FIG. 2 is a process diagram for explaining a manufacturing process of a dust-proof mask according to the present invention,
FIG. 3 is a plan view of the ultrasonic cut body according to the present invention,
4 is a perspective view showing a state where the first part and the second part are ultrasonically bonded,
5 is a perspective view showing a state in which the entire edge portion is ultrasonically fused,
6 is an explanatory view showing a process of attaching a contact member to a body portion;
7 is an explanatory view showing a process of attaching the hooking band to the main body part,
8 is a cross-sectional view showing an example of the structure of a dust-proof mask according to the present invention,
9 is a cross-sectional view showing another example of the structure of the dust-proof mask according to the present invention.

These and other objects and novel features of the present invention will become more apparent from the description of the present specification and the accompanying drawings.

Hereinafter, the configuration of the present invention will be described with reference to the drawings.

FIG. 3 is a plan view of the ultrasonic cut-off main body viewed from the outer side, and FIG. 4 is a cross-sectional view illustrating a state in which the first and second portions are ultrasonically bonded Fig. 5 is a perspective view showing a state in which the entire edge portion is ultrasonically fused. Fig.

Fig. 6 is an explanatory view showing a process of attaching the contact member to the body portion, and Fig. 7 is an explanatory view showing a process of attaching the hook band to the body portion.

As shown in FIG. 2, in order to manufacture the dust-proof mask according to the present invention, a fabric is first prepared in which an inner skin, a filter member, and an outer skin, which form a mask, are sequentially laminated (S10).

Next, as shown in FIGS. 2 and 3, ultrasonic cutting is performed in order to form the main body 100 having symmetrical left and right symmetrical parts with upper and lower cut-out parts and having a substantially winged blade shape (S20). Such cutting is performed continuously with respect to the fabric of flat plate shape, and a part of the fabric at the edge portion can be prevented from being exposed to the outside by ultrasonic cutting.

3, the main body 100 includes a first body 20 and a second body 30 in a flat state, and the first body 20 and the second body 30 ) Are integrally formed. The main body 100 includes a first part 40 and a second main body 30 which are separated from each other by an upper part of the first main body 20 and a second main body 30, The second portion 41 is separated from the lower portion by ultrasonic cutting. Such ultrasonic cutting is carried out continuously on the fabric in the form as shown in Fig. 3 according to pre-programmed conditions in the apparatus for manufacturing the mask.

Next, the first main body 20 and the second main body 30 are ultrasonically bonded to each other in the first portion 40 of the flat plate-like main body 100 cut in Step S20, and the second portion 41 The first body 20 and the second body 30 are ultrasonically bonded at step S30.

The width W1 of the first portion 40 is larger than the width W2 of the second portion 42 in the cutting. The width of the first portion 40 is made larger than the width of the second portion 41 corresponding to the protrusion of the wearer so that the width of the first portion 40 and the width of the second portion 41 The first portion 40 is formed so as to project further outward than the second portion 41 after the bonding.

5, the entire edge of the main body 100 is ultrasonically welded to the first main body 20 and the second main body 30 by ultrasonic welding, (S40). The ultrasonic cut portion can be supplemented by fusing the edge portion, and the ultrasonic bonding portion can be reinforced in the step S30.

In the above embodiment, the ultrasonic welding of the whole of the edge portion of the main body 100 after the ultrasonic bonding of the first portion 40 and the second portion 41 has been described. However, the present invention is not limited to this, The ultrasonic welding of the first portion 40 and the second portion 41 may be performed after ultrasonic welding is applied to the entire edge portion of the main body 100. [

6, after the entire edge portion of the main body 100 is ultrasonically fused, the first portion 40 (40) to which the first main body 20 and the second main body 30 are joined, (Step S50). The contact member includes a sponge 50 for protecting a wearer's nose at an inner skin portion provided with the first portion 40 and a second portion 40 at a portion corresponding to the sponge 50 on a skin portion provided with the first portion 40. [ And a metal shape adjusting strip 60 adhered by an adhesive tape.

7, an adjustment portion 80 is ultrasonically bonded to the side portions of the first and second main bodies 20 and 30, and the first and second main bodies 30 and 30 are fitted to the adjuster 80, The hooking band 90 on the loop is mounted (S60). That is, by attaching the hooking band 90 to the left and right of the main body 100, the dust-proof mask according to the present invention is completed. The structure, function, and assembling method of the regulator 80 are described in detail in the registration utility model publication No. 20-0392648 (registered on Aug. 04, 2005) filed by the present applicant, and a detailed description thereof will be omitted .

Further, in the above embodiment, the step S60 of mounting the hooking band 90 is executed after the step S50 of adhering the adhesive member. However, the present invention is not limited to this, and the hooking band 90 may be attached Or may be performed by a step of bonding the members.

8 and 9, a structure for solving the problem of the occurrence of blurring in the glasses when the worker wearing glasses wears out the structure of the dust-proof mask according to the present invention, in particular, another embodiment of the present invention .

FIG. 8 is a cross-sectional view showing an example of the structure of the dust-proof mask according to the present invention, and FIG. 9 is a cross-sectional view showing another example of the structure of the dust-

The filter member applied to the dust-proof mask according to the present invention comprises a carbon filter (103) and a dust-proof filter (104). The carbon filter 103 contains activated carbon to remove heavy metal ionic organic chemical toxic substances, and the dustproof filter 104 has a function of shielding dusts that cause pneumoconiosis and the like.

The carbon filter 103 and the dustproof filter 104 as described above are provided between the inner skin 101 and the outer skin 102 and by performing the ultrasonic cutting in the body forming step S20 as described above, And cut. The carbon filter 103 and the dustproof filter 104 are firmly held between the inner skin 101 and the outer skin 102 by the step S40 of ultrasonic welding the edge portion of the dustproof mask.

That is, in this embodiment, when the body part 100 has a breath of a wearer, the upper end of the body part 100 is shielded and the lower end is opened, or a ventilation hole opened from the inner skin 101 toward the outer skin 102 And a structure is provided in which the ventilation hole is cut off when there is an inspiration of the wearer.

8, an upper end portion of any one of the inner or outer skin of the main body 100 (the inner skin 101 (see FIG. 8) ) Portion of the main body 100 is provided with a coating portion 21 coated with vinyl or the like to block the movement of air at the upper end portion of the main body portion 100, Similarly, the inner skin 101 and the outer skin 102 are provided so as to have air permeability.

By using a dust-proof mask having the above-described structure, when an operator who wears glasses wears out or inhales, air is circulated through only the lower end portion.

9, a coating portion 21 (e.g., a coating portion) coated with vinyl or the like on the upper end portion (the portion of the inner surface 101 in FIG. 8) of the inner surface or the outer surface of the main body portion 100, And when the wearer's inhalation occurs at the upper end portion of the inner skin 101 of the main body 100 or the outer skin 102 of the main body 100 101 are provided with a plurality of ventilation openings 105. [ 9, the ventilation hole 105 is cut off when the user wears glasses, and when the operator wearing glasses wears off the ventilation holes 105, The air is circulated through only the portion of the eyeglass frame, so that it is possible to solve the problem that the eyeglasses are generated in the glasses.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

By using the dust-proofing mask and the manufacturing method according to the present invention, ultrasonic welding can be performed on the plate-like main body portion to prevent the deterioration of the function of the filter by the thermocompression bonding and the pressing process.

20:
30:
40: first part
41: second part
100:

Claims (6)

(a) an inner skin, a filter member, and an outer skin, and is composed of a first body 20 and a second body 30, wherein a central portion of the first body and the second body 30 are integrally formed, A first portion 40 in which the first body 20 and the upper portion of the second body 30 are separated from each other and a second portion in which the lower portion of the first body 20 and the second body 30 are separated from each other, A step of ultrasonically cutting the flat plate-like main body portion 100 formed with the flat plate-
(b) ultrasonically joining the first body (20) and the second body (30) in the first portion (40) of the flat plate type body portion (100) cut in the step (a) Ultrasonic bonding the first body 20 and the second body 30 at a portion 41,
(c) ultrasonic welding the entire edge of the main body 100 in the step (a)
(d) bonding the sealing member to the inner and outer portions of the first portion (40) to which the first body (20) and the second body (30) are joined after the ultrasonic welding in the step (c)
(e) attaching a hook band to left and right sides of the main body part (100). The method according to claim 1,
Wherein the width of the first portion (40) is greater than the width of the second portion (41). An anti-dust mask characterized by being formed by the method for manufacturing a dust-proof mask according to claim 1 or 2. The method of claim 3,
Wherein the filter member comprises a carbon filter and a dust-proof filter. The method of claim 3,
The main body 100 is provided with a vent 105 opening toward the inner skin 101 from the envelope 102 when the wearer breathes,
And the vent hole (105) is cut off when the wearer has an exhalation. 6. The method of claim 5,
Characterized in that a coating portion having no breathability is provided at an upper end portion of either the inner surface (101) or the outer surface (102) of the main body (100).

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