KR20210097888A - Horizontally flat-foldable 3-panel mask having a continuous rim - Google Patents

Abstract

Provided is a horizontally flat-foldable tri-ply mask having a continuous rim, which comprises: a mask main body including a middle ply, an upper ply which has one end extending from the upper end of the middle ply, a lower ply which has one end extending from the lower end of the middle ply, and a continuous rim in which a rim extending from the other end of the upper ply and a rim extending from the other end of the lower ply are connected to each other by a rim joint part; and a harness mounted on the continuous rim. According to the present invention, when the horizontally flat-foldable tri-ply mask having a continuous rim is unfolded, the middle, upper, and lower plies form a stable chamber, and the continuous rim separated from the plies is closely attached to a user's face, nose, and chin, thereby being advantageous to provide a separate, sealed, and stable space inside the mask.

Description

Continuous rim 3-leaf horizontal stacking mask {HORIZONTALLY FLAT-FOLDABLE 3-PANEL MASK HAVING A CONTINUOUS RIM}

The present invention relates to a continuous rim three-leaf horizontal stacking mask. More particularly, the present invention relates to a three-leaf horizontally stacked mask having a continuous rim distinct from the chamber.

There are two types of face-filtering respirator, that is, a face mask for respiratory protection, a molded cup shape and a flat folding shape. The flat folding form can be further divided into a horizontal stacking type and a vertical stacking type according to the direction in which the multiple lobes are folded. The molded cup-shaped filtration respirator has the advantage of enhancing the sealing function if the inner air chamber can be accurately built due to its rigid structure and the outer periphery of the cup is well matched to the face contour. The layer with this layer may be plastically deformed to deteriorate the purification function, and the manufacturing process is relatively complicated, and storage, storage and transport are disadvantageous due to the cup shape. In addition, there is a disadvantage in that the shape of the outer periphery of the cup has a limit in accommodating various individual differences in the shape of the facial contour.

As a foldable mask, 3M's Korean Patent Registration No. 10-0439481 (Korean Patent Publication No. 10-1998-0702678, International Publication WO 1996/28217) has a first member (upper lobe) and a second member (lower lobe) in the central part ( A cup shape that is folded flat to be stored at least partially in face-to-face contact with the common surface of the middle lobe) and covers the nose and mouth of the wearer by the central portion and the uncoupled edges of the first and second members during use A three-lobed mask consisting of a so-called middle lobe, an upper lobe and a lower lobe forming an air chamber of When unfolded and used, the unjoined edges of the upper and lower lobes make contact with the wearer's nose, cheeks and chin to form a somewhat airtight air chamber around the mouth, while being folded flat when stored. . However, the three-leaf mask has been modified and improved in various forms, but on both sides of the upper and lower lobes, the edges meet or open at a single point, respectively, so there is a problem in the sealing structure on both sides. In addition, the closed chamber is formed by the middle lobe, the upper and lower lobes, but since it is the edges of the upper and lower lobes or the middle lobe that are in close contact with the face, the chamber configuration and the sealed structure are not clearly distinguished. There is a problem in that it is easily torn down and, above all, is not well sealed.

The present invention is a foldable mask that when used unfolded, the part in contact with the facial contour is not simply an edge, but a continuous complete rim shape, and the upper, lower, and middle lobes are separated from the rim, so that the chamber can be configured only with these To provide a continuous rim three-leaf horizontal stacking mask. In addition, as a collapsible mask, it is to provide a mask that can be applied even in industrial fields by separating the sealing structure and the air purification structure and taking advantage of the advantage of having a large air purification area.

As a result of long-term research on the structure and process of the three-leaf horizontal stacking mask, the present inventors provide an extra for forming a rim on the edges of the upper and lower lobes, and attach them to each other at both ends of the upper and lower lobes and cut and remove the blank space. made this structure possible.

According to the present invention, a middle lobe, an upper lobe having one end extending from the upper end of the middle lobe, a lower lobe having one end extending from the lower end of the middle lobe, and a rim extending from the other end of the upper lobe and a rim extending from the other end of the lower lobe are formed by a rim joint. A continuous rim three-leaf horizontally stacked mask is provided comprising a mask body including a continuous rim connected to each other and a harness mounted to the continuous rim. In general, the upper lobe is joined to the middle lobe by a junction line that slopes to both sides at the center, and the lower lobe is joined to the middle lobe by a junction line that rises in both directions at the center. The mask of the present invention may be used as a handle tab by forming a protrusion at a junction line between the upper lobe and the middle lobe or the lower lobe and the middle lobe. Such handle tabs, for example, if a pair is formed symmetrically left and right, it can contribute to the prevention of contamination by using them when handling the mask.

Preferably, in the present invention, the rim joint is formed by extending from the junction line between the upper lobe and the middle lobe or the upper lobe and the lower lobe based on the folding of the mask body.

Preferably, in the present invention, when the mask is folded, the upper lobe faces the upper part of the middle lobe and the lower lobe faces the lower part of the middle lobe based on the horizontal center line of the middle lobe, and the rim extends from the other end of the upper lobe. The upper leaf rim extends with a predetermined bending line near the horizontal center line, and the rim extending from the other end of the lower leaf, that is, the lower leaf rim also extends with a predetermined bending line near the horizontal center line. When the mask is folded for storage, the continuous rim is folded over the mask body along a predetermined bend line and stacked flat for seamless storage. Such a predetermined bending line can be easily obtained by, for example, long-stitch bonding of laminated panels. Also, the upper and lower rims constitute a continuous rim by the rim junction. Due to this structure, the middle, upper and lower lobes constitute the chamber when the mask is unfolded, and the continuous rim is separated from the chamber and is exclusively responsible for the sealing function of the chamber.

Also, a harness is mounted, for example, jointly, near the rim abutment on both sides of the continuous rim. Alternatively, both sides of the continuous rim may be bent and joined to have a passage, and a harness may be mounted on the passage. At this time, one harness is mounted on one side of the continuous rim and another harness is mounted on the other side, so that it is generally used as an ear mounting method used in a living environment, or a head used in an industrial environment by mounting one connected integrated harness to the passages. It can be used in a way of mounting around it.

The mask of the present invention may preferably have a middle tab in the middle of the upper leaf rim or the lower leaf rim. This middle tab can be used as a handle when unfolding the mask for use. In the present invention, joint cutting means performing cutting and peripheral bonding at the same time by selecting an ultrasonic horn blade, and bending bonding means folding and bonding in order to bend the same panel.

In the present invention, the panel forming the middle lobe, the upper lobe and the lower lobe is not particularly limited in material and may be used in various ways, such as woven fabrics and non-woven fabrics. For example, it may be made of a composite nonwoven fabric in which a melt blown nonwoven fabric to which static electricity is imparted and a spunbonded nonwoven fabric are laminated. These nonwoven fabrics form well-controlled micropores at the time of manufacture to provide the function of filtering the inhaled air. The lining may be a soft material, such as polypropylene mixed with polyethylene, and a soft spunbonded nonwoven fabric may be used.

The bonding of the laminated non-woven fabric panel, which is the material of the mask, may be achieved by welding, particularly ultrasonic welding. Most of the horizontal stacking mask of the present invention can be manufactured by a consistent process by laminating (or laminating), bending, bonding, and cutting. In addition, in the case of bending and bonding as a single laminated panel, feeding and transporting are easy in the manufacturing process, and the manufacturing process is simple.

The continuous rim horizontal stacking 3-leaf mask according to the present invention, when unfolded, the middle, upper and lower lobes constitute a stable chamber, and the continuous rim, which is distinct from this, closely adheres to the user's face, nose, and chin, so that a separate seal inside the mask It is very advantageous to prepare a stable space.

1A is a front view of a conventional three-leaf mask in a folded state;
1B is a rear view of a conventional three-leaf mask in a folded state;
1c is a perspective view of a conventional three-leaf mask viewed from the inside in an unfolded state;
2 is a front view of a folded state of a mask as an embodiment of the present invention;
Fig. 3 is a rear view of the mask of Fig. 2;
Fig. 4 is a perspective view in which the continuous rim is artificially erected in the folded mask of Fig. 2;
5 is a state diagram of the mask of FIG. 2 in use;
6 is a state diagram in use as another embodiment of the present invention;
7 is a manufacturing process diagram of the mask body of FIG. 2 .

Hereinafter, the present invention will be described in detail with reference to the drawings. These descriptions are intended to illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

Referring to Figures 1a, 1b and 1c, the conventional horizontal stacking three-leaf mask basically consists of a middle lobe (b), an upper lobe (a) and a lower lobe (c). As shown in Fig. 1c, when unfolded and viewed from the inside, the edges of the upper lobe (a) and the lower lobe (c) constitute a band that is in contact with the face to some extent, but it is difficult to form a closed structure because it results in a single point on both sides where these edges are in contact. This is not solved even if the edges of the upper lobe (a) and the lower lobe (c) are overlapped and given extra, and a completely different structure is required.

An embodiment of the present invention will be described with reference to FIGS. 2 to 5 . The upper rim 6a and the lower rim 6b are connected via a rim junction 5 and form a continuous rim 6 . A harness is mounted near the rim joint 5 on both sides of this continuous rim 6 . The rim joint 5 is formed by joint cutting and is formed on the extension line of the joint line 1a between the upper lobe and the middle lobe or the joint line 3a between the lower lobe and the middle lobe depending on the folding direction. A handle tab 8 is formed extending from a portion of the joint line between the middle lobe 2 and the lower lobe 3 . The continuous rim 6 forms a continuous rim when the mask is unfolded as shown in Fig. 5, but when folded as shown in Figs. 3) or flatly superimposed on the upper lobe 1 (FIGS. 2 and 3 show examples of superimposed on the upper lobe).

Referring to Fig. 6 as another embodiment of the present invention, in the vicinity of the rim joint on both sides of the continuous rim, the rim is bent and joined to have a passage to form a harness holder 9, to which the harness is mounted. Here, if the harness is used as the left and right integrated (7a) and passed through the harness holder (9), it can be used in a way that it is worn on the back of the head installed in the industrial field.

In order to more clearly explain the characteristics of the mask of the present invention, a simplified manufacturing process diagram of FIG. 7 will be described. This process diagram is not detailed and the order may be different, and it is to be described as an example within the scope of explaining the characteristics of the mask body of the present invention.

In step (A), the mask material laminated panel loaded with the nose clip 8 is prepared. These laminated panels form a predetermined bending line so that the upper lobe, upper lobe, lower lobe and lower lobe are symmetrically divided based on the midline of the middle lobe.

First, in step (b), the parts corresponding to the upper lobe (6a) and the upper lobe (1) are folded over the corresponding part of the middle lobe (2), and only the part corresponding to the upper lobe is joined in an arc shape.

Then, in step (c), cut the upper part of the center line and the blank space above the arc. The joining and cutting of steps (B) and (C) can be performed almost simultaneously.

Subsequently, in step (D), the region corresponding to the unjoined upper lobe rim 6a is turned back over the center line so as not to interfere with the subsequent junction of the lower lobe.

In step (E), the regions corresponding to the lower lobe 3 and the lower lobe rim 6b are folded over the corresponding regions of the corresponding middle lobe 2, and the lower lobe is joined in an inverted arc shape. At this time, it is important that the junction line of the lower lobe extends to the continuous rim. A rim joint is formed by this extended joint.

In step (F), the margin of the joint line between the rim joint and the lower lobe is cut out to complete the mask body. At this time, the bonding in step (E) and the cutting in step (F) may be performed almost simultaneously.

a; conventional three-leaf mask upper lobe b; Conventional 3-leaf mask mid-lobe
c; lower lobe 1 of a conventional three-lobe mask; upper lobe 1a; junction of upper and middle lobe 2; mid lobe 3; lower lobe 3a; junction of lower and middle lobe 5; rim abutment 6; continuous rim
6a; upper lobe rim 6b; lower rim
7; harness 7a; integral harness 8; handle tab 9; harness holder
10; Mask 20 of one embodiment of the present invention; Mask of another embodiment of the present invention

Claims (6)

The middle lobe, the upper lobe having one end extending from the upper end of the middle lobe, the lower lobe having one end extending from the lower end of the middle lobe, and a rim extending from the other end of the upper lobe and a rim extending from the other end of the lower lobe are connected to each other by a rim joint. A continuous rim three-leaf horizontally stacked mask comprising a mask body comprising: and a harness mounted on the continuous rim. The method according to claim 1, wherein the upper lobe is joined to the middle lobe by a joint line that slopes to both sides at the center, and the lower lobe is joined to the middle lobe by a joint line that rises upward from the center to both sides, and the rim joint portion is based on when the mask body is folded. , A continuous rim 3-leaf horizontal stacking mask formed by extending and joining the upper lobe and the middle lobe or the lower lobe and the middle lobe at a junction line. 3. The continuous rim three-leaf horizontal stacking mask of claim 2, wherein the harness is mounted near the rim junction on both sides of the continuous rim. The continuous rim three-leaf horizontal stacking mask according to claim 3, wherein both sides of the continuous rim are bent and joined to have a passage, and the harness is mounted on the passage. The continuous rim three-leaf horizontally stacking mask according to claim 1, wherein the upper lobe and the middle lobe or the lower lobe and the middle lobe have a handle tab near the junction line. The rim of claim 1 , wherein when the mask is folded, the upper lobe faces the upper part of the middle lobe, the lower lobe faces the lower part of the middle lobe, and the rim extending from the other end of the upper lobe is the A continuous rim three-leaf horizontal stacking mask, wherein the rim extends with a predetermined bending line near the horizontal center line and extends from the other end of the lower lobe also extends with a predetermined bending line near the horizontal center line.

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