KR20200129974A - Three dimensional shape folding type mask and fabricating method for the same - Google Patents

Abstract

Disclosed is a three-dimensional foldable mask to facilitate carrying and handling and a manufacturing method thereof. According to the present invention, the three-dimensional foldable mask comprises: a base part providing a front surface part of the mask; a first side part to be folded in a direction of the inner surface of the base part and connected adjacent to the upper edge of the inner surface of the base part; a second side part to be folded in the direction of the inner surface of the base part and connected adjacent to the lower edge of the inner surface of the base part; a closely attached flap disposed at each of four corners of the base part to reinforce attachment force to a user′s facial part when being worn; and a wearing string attached to the closely attached flap at both ends of the base part to form a ring shape.

Description

Three-dimensional folding mask and its manufacturing method {THREE DIMENSIONAL SHAPE FOLDING TYPE MASK AND FABRICATING METHOD FOR THE SAME}

The present invention relates to a three-dimensional foldable mask and a method of manufacturing the same, and more particularly, to a three-dimensional foldable mask having a structure that can be folded flatly when carrying and a method of manufacturing the same.

A mask worn on the face is a respiratory protection device worn to prevent inhalation of fine dust or dust floating in the air in a place such as outdoors or a workplace with high dust concentration, and is generally made of an air-permeable fiber material.

The technology related to the folding mask is disclosed in Patent Document 1 and Patent Document 2.

Patent Document 1 proposes a breathing mask, characterized in that a component such as an exhaust valve is fixed to the respirator body by a printed adhesive patch. In addition, Patent Document 1 discloses a process of manufacturing a breathing mask by continuously supplying a filter material, a cover web material, a foam material, and the like, respectively, and bonding them to each other to form a web assembly, and then cutting them one by one in individual mask units.

Patent Document 2 discloses a mask including a base panel, an upper panel, and a lower panel, and having a shape in which the base portion is curved outward in an unfolded state. The mask is divided into an upper surface and a lower surface so that the base portion has a shape curved outward, and a structure in which the width of the upper surface and the lower surface is reduced from the center to both ends is proposed.

However, since the conventional mask has to bend the wire portion according to the contour of the face portion, it is cumbersome to use, and there is a vulnerability that may cause skin pain in the process of bringing the mask body into close contact with the face portion.

As an alternative, products in which a sponge is attached to correspond to the wire part on the lining around the nose to relieve skin pain are also on the market, but in this case, there is a disadvantage that the face skin is pressed by the sponge and marks are created, and both ends of the sponge Steps are formed as much as the thickness of the sponge, which causes a gap between the mask body and the face portion through which foreign substances can enter.

Patent Document 1: Korean Patent Publication No. 10-0531054 Patent Document 2: Korean Patent Application Publication No. 10-2008-0102881

The present invention is invented in consideration of the above problems, and provides a three-dimensional folding mask with improved structure and a manufacturing method thereof so that it is convenient to carry or handle by maintaining a flat shape in a folded state, and to improve adhesion to the face part in a wearing state. It has its purpose to provide.

Another object of the present invention is to provide a three-dimensional foldable mask having a structure capable of closely contacting the mask body to the face portion without pressure or stimulation to the skin when worn, and a method of manufacturing the same.

In order to achieve the above object, the present invention includes a base portion providing a front portion of a mask; A first side portion that can be folded in a direction of an inner surface of the base portion and is connected adjacent to an upper edge of the inner surface of the base portion; A second side portion that can be folded in a direction of an inner surface of the base portion and is connected adjacent to a lower edge of the inner surface of the base portion; A close contact flap provided at each of the four corners of the base portion to enhance adhesion to the face portion when worn; And it provides a three-dimensional folding mask comprising a; and attached to the contact flap at both ends of the base portion to form a ring-shaped wearing strap.

The present invention may further include a flap fold line formed to extend in a direction transverse to the base portion so that the contact flap can be folded or bent in the inner surface direction when worn.

It is preferable that the shape of the rim end between the close contact flaps adjacent to each other is semicircular or arc.

It is preferable that contact flaps adjacent to each other on the outer side of the flap fold line and rim ends between the contact flaps adjacent to each other are positioned on the outside.

Both ends of the first side in the longitudinal direction and both ends of the second side in the longitudinal direction may be located inside the flap fold line.

It may further include a flap isolator formed by ultrasonic fusion at the midpoint of the flap fold line so as to independently fold or bend adjacent flaps.

According to another aspect of the present invention, (a) preparing a filter fabric made of a sheet form; (b) folding the filter fabric in three layers; (c) fusing the filter fabric in a predetermined pattern; (d) forming a mask body comprising a base portion, a first side portion and a second side portion by press-cutting the filter fabric; And (e) attaching wearing straps to both ends of the mask body; including, in step (d), performing the press-cutting process to form close contact flaps at each of the four corners of the base portion, and the step In (e), there is provided a method for manufacturing a three-dimensional foldable mask, characterized in that attaching the end of the wearing strap to the contact flap.

In the step (c), the flap fold line may be ultrasonically welded to extend in a direction crossing the base portion so that the contact flap can be folded or bent in the inner surface direction when worn.

In the step (d), it is preferable to perform the press-cutting process so that the shape of the edge ends between the adjacent contact flaps becomes semicircular or arc-shaped.

It is preferable that the flap fold line is ultrasonically welded so that the edge ends between the adjacent contact flaps and the adjacent contact flaps are positioned on the outside based on the flap fold line.

It is preferable to ultrasonically fuse the flap fold line so that both ends of the first side in the longitudinal direction and both ends of the second side in the longitudinal direction are located inside the flap fold line.

The method may further include forming a flap isolator by ultrasonically fusing an intermediate point of the flap fold line so that adjacent flaps can be folded or bent independently of each other.

The three-dimensional folding mask according to the present invention and its manufacturing method have the following effects.

First, in the wearing state, the edge portions of both ends of the mask are in close contact with the face by the close contact flaps, thereby blocking the inflow of foreign substances and preventing leakage.

Second, the close contact flaps adjacent to each other at both ends of the mask are independently folded or bent with each other by the flap isolator so that they are in close contact with each other in accordance with the size, shape, and difference of the face, so that adhesion can be further improved.

Third, even if the wearing strap is not tightly tightened, since the edges of both ends of the mask are naturally in close contact with the face part by the close contact flap, it is possible to reduce ear pain when wearing.

Fourth, by designing the length and angle of the close contact flaps adjacent to each other at both ends of the mask to be symmetrical or asymmetric, it is possible to effectively alleviate pain in the face and ears.

Fifth, as the close contact flap is pulled by the wearing strap and is in close contact with the face part, it is possible to further increase the adhesion by pressing the first side and the second side.

Sixth, since the mask has a flat shape in a folded state, there is an advantage of being convenient to carry or handle.

The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, which will be described later. It is limited to and should not be interpreted.
1 is a perspective view showing a folded state of a three-dimensional folding mask according to a preferred embodiment of the present invention.
FIG. 2 is a perspective view illustrating an unfolded state of the first side and the second side in FIG. 1.
3 is a rear perspective view of FIG. 2.
4 is a partial plan view of a three-dimensional folding mask according to a preferred embodiment of the present invention.
5 is a flow chart showing a manufacturing process of a three-dimensional folding mask according to a preferred embodiment of the present invention.
6 is a side view showing an example of wearing a three-dimensional folding mask according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention. Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

1 is a perspective view showing the appearance of a three-dimensional folding mask according to a preferred embodiment of the present invention, FIG. 2 is a perspective view showing a state in which the first side and the second side in FIG. 1 are unfolded, and FIG. 3 is a rear perspective view of FIG. to be.

1 to 3, a three-dimensional folding mask according to a preferred embodiment of the present invention provides a front portion of the mask, and a base portion 10 provided with close contact flaps 11 at four corners, respectively, and a base portion ( The first side portion 20 connected adjacent to the upper edge of the inner surface of 10), the second side portion 30 connected adjacent to the lower edge of the inner surface of the base portion 10, and in close contact at both ends of the base portion 10 It includes a wearing strap 40 attached to the flap (11).

The base portion 10 is a filter that provides a front portion of the mask. As shown in Fig. 1, the base portion 10 maintains a flat shape in the folded state of the mask. When wearing the mask, the base portion 10 serves to protect the body by covering the mouth and the tip of the nose.

In order to secure a space for covering the nose, mouth, and chin portions of the human body when wearing the mask, the base portion 10 is configured to gradually narrow in width from the center of the mask to both ends.

The close contact flap 11 is a part to which the wearing strap 40 is connected, and is provided in pairs at one end and the other end in the longitudinal direction of the base unit 10 to enhance adhesion to the face when worn. Preferably, the close contact flap 11 is formed integrally with the base portion 10 and protrudes to extend in the longitudinal direction of the base portion 10 and is positioned at each of the four corners of the base portion 10. According to a modified example of the present invention, the contact flap 11 may be formed of a separate member and may be provided attached to the four corners of the base portion 10.

It is preferable that a concave empty space 60 is formed between the pair of close contact flaps 11 adjacent to the base portion 10 in the vertical direction. The rim end between the pair of close contact flaps 11 is adjacent to the concave empty space 60, and the contour shape of the rim end and the end contour shape of the close contact flaps 11 are in contact with the facial skin. In order to minimize stimulation, it is preferable to have a round shape such as a semicircle or arc.

When the close contact flaps 11 are pulled by the wearing strap 40, the base part 10 presses the first side part 20 and the second side part 30 toward the skin of the face part while being in close contact with the face part, thereby further enhancing the adhesion. have.

As shown in FIG. 4, of the contact flaps 11, the contact flap 11 connected to the lower edge of the base 10 is relatively more than the contact flap 11 connected to the upper edge of the base 10. It is formed to be bent at a large angle to extend. In other words, the angle of the boundary between the lower rim of the base 10 and the rim of the close contact flap 11 connected thereto (see'A') is the upper rim of the base 10 and the close contact flap 11 connected thereto. It is formed to be bent at a relatively large angle compared to the angle of the boundary between the edges (see'B'). Here, the boundary portions'A' and'B' coincide with points corresponding to the flap fold line 12. That is, the boundary portions'A' and'B' are located on the extension line of the flap fold line 12.

The configuration in which the extension angles of the pair of close contact flaps 11 adjacent to each other are formed differently as described above naturally conform to the shape of the ear of the human body so that the wearing strap 40 is good when worn on the ear, and the base portion 10 The second side part 30 is connected to the lower edge of the ergonomically designed to further strengthen the adhesion when the inner surface of the second side part 30 contacts the user's chin area and its surroundings when wearing the mask. Structure.

On both sides of the base portion 10, flap fold lines 12 are formed to extend in a direction crossing the base portion 10 so that the pair of close contact flaps 11 can be folded or bent in the direction of the inner surface when worn. have. An edge between the pair of close contact flaps 11 and the pair of close contact flaps 11 is positioned on the outside based on the flap fold line 12. In addition, both ends in the longitudinal direction of the first side portion 20 and both ends in the length direction of the second side portion 30 are located inside the flap fold line 12.

At the midpoint of the flap fold line 12, a flap isolator 13 having a predetermined shape that can be folded or bent independently without affecting each other is formed by ultrasonic fusion between the pair of close contact flaps 11 adjacent to each other. have. The flap isolator 13 is preferably formed in a circular or concentric fusion pattern in order to effectively block external forces such as tension, bending, and torsion generated when the close contact flap 11 is folded or bent. The flap isolator 13 also serves as a central point or an axis when the close contact flap 11 is folded or bent in conformity with the shape of the face part.

When wearing the mask, when the wearing straps 40 connected to the contact flaps 11 are pulled, the contact flaps 11 are folded or bent in accordance with the shape of the face part, so that they are in close contact with the skin, and each other by the flap isolator 13. Since they are substantially separated, each folding or bending operation can be performed independently.

It is preferable that an edge fusion line 14 is formed around the edges of the base portion 10 and the close contact flaps 11 to increase rigidity and improve the aesthetics.

In the folded state of the mask, the first side part 20 and the second side part 30 are folded on the inner surface of the base part 10 to maintain a state of overlapping each other, and in the unfolded state, each protects the user's nose and chin area. Will play a role.

One end of the first side portion 20 is connected to be adjacent to an upper edge of the inner surface of the base portion 10 so as to be folded in the direction of the inner surface of the base portion 10. When wearing the mask, the inner surface of the first side part 20 comes into contact with the user's nose and its surroundings.

One end of the second side portion 30 is connected to be adjacent to a lower edge of the inner surface of the base portion 10 so as to be folded in the direction of the inner surface of the base portion 10. When wearing the mask, the inner surface of the second side portion 30 comes into contact with the user's chin area and its periphery.

Additionally, a strip-shaped nose wire 50 is attached to the first side part 20 to maintain and adhere to the shape when worn, and to improve fit and flow down the mask outside the nose wire 50 To prevent the like, for example, a fitting foam (not shown) made of a sponge material may be attached.

The end of the wearing strap 40 made of an elastic material such as a rubber band is attached to the close contact flap 11. The end of the wearing strap 40 is connected to the close contact flap 11 by ultrasonic fusion to form a ring that can be hung on the ear. The wearing strap 40 may employ a structure of an ear band that can be hung on the ear, and alternatively, may be configured as a hair band type worn around the head.

Although not shown in the drawings, a predetermined exhaust valve may be added to a part of the base unit 10 if necessary.

Hereinafter, a method of manufacturing a three-dimensional folding mask according to a preferred embodiment of the present invention will be described with reference to FIG. 5.

First, a filter fabric made in the form of a sheet is prepared (step S10), and the filter fabric is folded so that one piece and the other side are overlapped with each other so that the filter fabric is overlapped to form three layers as a whole (step S20). The three plies are made of the base portion 10 and the close contact flap 11, the first side portion 20, and the second side portion 30, respectively, by a later process. According to a modification of the present invention, the filter fabric may be manufactured in a form in which several pieces are stacked through various folding operations in which at least two or more layers are overlapped.

Thereafter, the filter fabric is placed on the ultrasonic welding jig, and the different layers in the overlapping state are bonded to each other by fusion bonding according to a predetermined edge fusion line 14 pattern and flap fold line 12 pattern (step S30). ). Here, the edge fusion line 14 pattern is a shape corresponding to the outline of the base portion 10 and the close contact flap 11, and the flap fold line 12 pattern is the base portion 10 on both sides of the base portion 10 Is a straight line crossing in the width direction. In addition, fusion line patterns having a predetermined shape may be further added in consideration of reinforcement or aesthetics of the base portion 10.

The ultrasonic welding process may be performed sequentially by rolling an ultrasonic tool in the form of a roll on the filter fabric and going from one end of the filter fabric to the other end.

After the ultrasonic fusion is completed, the blade mechanism is pressed from the upper side to the lower side and then cut by press-cutting to produce a mask body in which the base portion 10, the first side portion 20 and the second side portion 30 are assembled (step S40). The base portion 10, the first side portion 20, and the second side portion 30 are fused to each other while the edge portions are fused to each other by the above-described fusion bonding process to have a bonding relationship.

The first side portion 20 can be folded in the direction of the inner surface of the base portion 10 by the above-described fusing process and is connected adjacent to the upper edge of the inner surface of the base portion 10. In addition, the second side portion 30 can be folded in the direction of the inner surface of the base portion 10 and is connected adjacent to the lower edge of the inner surface of the base portion 10.

In addition, the press-cutting process is performed so that a pair of close contact flaps 11 are protruded at both ends of the base part 10 in the longitudinal direction, and a concave empty space 60 is formed between the pair of close contact flaps 11. Perform.

After the cutting process is completed, attach the nose wire 50 and the fitting foam to the inner surface of the first side part 20, and attach it to both ends of the mask body, that is, a pair of close contact flaps 11 by ultrasonic welding. Both ends of (40) are attached (step S50).

The three-dimensional folding mask provided according to a preferred embodiment of the present invention maintains a flat shape in a folded state, and is used in an unfolded state as shown in FIG. 6 when worn. In the unfolded state of the mask, the base portion 10 is curved in the direction of the inner surface, and the first side portion 20 and the second side portion 30 are spread in the vertical direction, respectively, and are worn on the user's respirator in a three-dimensional shape.

In the wearing state, the edge portions of both ends of the mask are in close contact with the face portion by the close contact flaps 11 located at the four corners of both ends of the mask to block the inflow of foreign substances and prevent leakage.

A pair of close contact flaps 11 facing each other in the vertical direction of the mask are independently folded or bent with each other by the flap isolator 13 so as to be in close contact with each other according to the size or shape of the face, so that adhesion can be further improved.

In addition, as the close contact flap 11 is pulled by the wearing strap 40, the close contact flap 11 comes into close contact with the face and the base 10 presses the first side 20 and the second side 30 The adhesion can be further increased.

The three-dimensional folding mask according to the present invention having the configuration as described above can be usefully used as a face mask for fine dust to prevent inhalation of fine dust. As an alternative, it can also be used as an industrial dust mask to prevent inhalation of dust floating in the air in places such as a workplace.

In the above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited thereto, and within the scope of the technical idea of the present invention by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and variations are possible.

10: base portion 11: close contact flap
12: Flap fold line 13: Flap isolator
20: first side 30: second side
40: wearing strap

Claims (12)

A base portion providing a front portion of the mask;
A first side portion that can be folded in a direction of an inner surface of the base portion and is connected adjacent to an upper edge of the inner surface of the base portion;
A second side portion that can be folded in a direction of an inner surface of the base portion and is connected adjacent to a lower edge of the inner surface of the base portion;
A close contact flap provided at each of the four corners of the base part to enhance adhesion to the face part when worn; And
A three-dimensional folding mask comprising; a wearing strap attached to the contact flap at both ends of the base portion to form a ring shape. The method of claim 1,
A three-dimensional folding mask further comprising a; flap fold line formed to extend in a direction transverse to the base portion so that the contact flap can be folded or bent in the inner surface direction when worn. The method of claim 2,
Three-dimensional folding mask, characterized in that the shape of the edge between the adjacent adjacent flaps are semicircular or arc shape. The method of claim 3,
A three-dimensional folding mask, characterized in that contact flaps adjacent to each other on an outer side of the flap fold line and edge ends between the contact flaps adjacent to each other are positioned. The method of claim 4,
A three-dimensional folding mask, characterized in that both ends in the longitudinal direction of the first side and both ends in the longitudinal direction of the second side are located inside the flap fold line. The method of claim 2,
A three-dimensional folding mask further comprising a; flap isolator formed by ultrasonic fusion at the midpoint of the fold line of the flap to allow the close contact flaps adjacent to each other to be independently folded or bent. (a) preparing a filter fabric made in a sheet form;
(b) folding the filter fabric in three layers;
(c) fusing the filter fabric in a predetermined pattern;
(d) forming a mask body comprising a base portion, a first side portion and a second side portion by press-cutting the filter fabric; And
(e) attaching wearing straps to both ends of the mask body; Including,
In step (d),
Perform the press-cutting process so that close contact flaps are formed at each of the four corners of the base part,
In step (e),
Method of manufacturing a three-dimensional folding mask, characterized in that attaching the end of the wearing strap to the contact flap. The method of claim 7, wherein in step (c),
A method of manufacturing a three-dimensional foldable mask, characterized in that ultrasonic welding of the flap fold line so as to extend in a direction transverse to the base portion so as to fold or bend the contact flap in the direction of the inner surface when worn. The method of claim 8, wherein in step (d),
The method of manufacturing a three-dimensional foldable mask, characterized in that the press-cutting process is performed so that the shape of the edge between the adjacent close contact flaps becomes semicircular or arc-shaped. The method of claim 8, wherein in step (c),
The method of manufacturing a three-dimensional foldable mask, characterized in that the flap fold line is ultrasonically welded so that close contact flaps adjacent to each other on the outside based on the flap fold line and edge ends between the close contact flaps adjacent to each other are positioned. The method of claim 10, wherein in step (c),
The method of manufacturing a three-dimensional foldable mask, characterized in that the flap fold line is ultrasonically fused so that both ends of the first side in the longitudinal direction and both ends of the second side in the longitudinal direction are located inside the flap fold line. The method of claim 8, wherein in step (c),
The method of manufacturing a three-dimensional folding mask further comprising: forming a flap isolator by ultrasonically fusing an intermediate point of the flap fold line so that the close contact flaps adjacent to each other can be independently folded or bent.

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