CN112806641B

CN112806641B - Mask

Info

Publication number: CN112806641B
Application number: CN202110175557.9A
Authority: CN
Inventors: 马建民; 张晓燕
Original assignee: Jiangsu Sonacare Medtech Co ltd
Current assignee: Jiangsu Sonacare Medtech Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2023-12-22
Anticipated expiration: 2041-02-09
Also published as: CN112806641A

Abstract

The application relates to a mask, mask main part includes: left vertical edge and right vertical edge, the top-down distributes in proper order after this gauze mask main part expands: a first fold, a second fold, a third fold, and a fourth fold, a first cover section formed between the first fold and the second fold, a second cover section formed between the third fold and the fourth fold, a third cover section formed between the second fold and the third fold, a fourth cover section extending upward from the first fold, a fifth cover section extending downward from the fourth fold; the first cover section and the second cover section are respectively positioned at two opposite sides of the third cover section, and a separation area which is not connected and extends upwards continuously from the first crease is formed between the first cover section and the third cover section at the left vertical edge or/and the right vertical edge. The mask has good tightness when being worn, can increase the protection effect and reduces the possibility of being infected.

Description

Mask

Technical Field

The present application relates to a mask.

Background

The mask is a sanitary article, and is generally worn at the mouth and nose position for filtering air entering the mouth and nose so as to prevent harmful gases, smell and spray from entering the mouth and nose of a wearer, and is made of gauze or non-woven fabrics and the like, has a certain filtering effect on the air entering the lung, and has a very good effect when the mask is worn in environments polluted by dust and the like during the flow of respiratory infectious diseases. The fit between the mask and the wearer's face is an important determinant.

The existing mask sold in the market has N95 mask with better sealing performance, but has the problems of high price, poor design, dyspnea and the like. However, even if the mask is provided with a nose clip or a sponge strip, the mask still has the problem of loose adhesion with the face of the wearer and air leakage.

The traditional mask has insufficient adhesion with the face of a human body when being worn, and the main reason is that: the shape and size of the mask cannot be fully adapted to the contours of the face of a wide variety of human bodies, so that the vertical edges on both sides of the mask body are provided with outward bulges U, and a large gap D is formed between the vertical edges on both sides of the mask body and the face, as shown in fig. 1. The mechanical reasons for further analysis of the formation of the protuberances U and the voids D are as follows:

fig. 1 to 5 show a typical planar mask, the mask body 1 of which has: two vertical edges on two lateral sides, namely a left vertical edge 1a and a right vertical edge 1b, and two lateral edges on two upper and lower sides, namely an upper lateral edge 1c and a lower lateral edge 1d. Generally, the vertical side is shorter than the long side, so that the vertical side of the mask body 1 is generally called a short side and the horizontal side is called a long side in the industry. Three folds 100 are further arranged on the mask body 1, the three folds 100 are sequentially and closely arranged from top to bottom, and each folded edge of each fold 100 is fixed at the left side edge and the right side edge (vertical edge) of the mask body in a hot pressing mode. In order to enable a user to wear the mask, a breathing cavity independent of the outside is formed on the face of the user, and a plurality of folds 100 are generally designed on the mask body 1. As shown in fig. 3, during the action of wearing the mask, the vertical edges of the two sides of the mask body 1 receive the pulling forces F1 and F2 of the ear strap 2, wherein the pulling force F1 can be decomposed into a downward vertical component F1y and a rearward pair of horizontal component F1x, and the pulling force F2 can be decomposed into an upward vertical component F2y and a rearward pair of horizontal component F2x. The component force F1y moves down the top of the vertical edge of the mask body 1 on the left and right sides, the component force F1x moves back the top of the vertical edge of the mask body 1, the component force F1y moves up the bottom of the vertical edge of the mask body 1, and the component force F2x moves back the bottom of the vertical edge of the mask body 1. As a result, the vertical edge of the mask body 1 is deformed as shown in fig. 4, and the mask body 1 after being worn is basically maintained in the configuration shown in fig. 4 and 6 by receiving a reverse facial force (static friction force). In fig. 4, the distance between the two ends of the ear band 2 is closer to each other than in the initial wearing stage shown in fig. 3, and the direction of the tension of the ear band 2 to the mask body 1 is changed. In fig. 4 and 5, the top and bottom of the left vertical edge 1a of the mask body are tightly attached to the wearer's face 5 due to the direct tension of the ear strap 2, but the middle part of the left vertical edge 1a, i.e. the part where the wrinkles are located, forms a very high bulge U, and a very large gap D exists between the left vertical edge 1a and the wearer's face 5. This is because:

Two adjacent folds 100 are arranged on the mask in a close manner, and a plurality of folded edges (or mask sections) in each fold 100 are fixed at the vertical edge by hot pressing. For example, in fig. 3, at the left vertical edge 1a of the mask body 1, three mask segments 11, 13, 14 of the uppermost fold 100 are stacked on each other and fixed by heat pressing. The fold 100 has a greater thickness at the vertical edge and a stiffer texture and does not naturally bend when worn. When the mask is worn by a wearer, the top and bottom parts of the left and right vertical edges 1a and 1b are close to each other under the tension of the ear strap 2, and the relatively hard folds 100 at the left and right vertical edges 1a and 1b are difficult to bend, so that the joint of two adjacent folds 100 generates an outward bulge U, and cannot be well attached to the face 5, and a large gap D exists between the left and right vertical edges and the face 5 of the wearer.

Referring to fig. 6 and 7 again, since the mask body 1 has a certain resistance during breathing due to its characteristics, and a large gap D exists between the vertical edge of the mask body and the face of the wearer, the air flow characteristics determine that the wearer can spill in and out of the gap D between the vertical edge and the face during inhalation and exhalation. This phenomenon undoubtedly reduces the protective effect of the planar medical mask and increases the risk of infection between users.

Disclosure of Invention

The technical problem that this application will solve is: a mask with good tightness is provided to increase the protection effect and reduce the possibility of infection.

In order to solve the technical problem, a first scheme provided by the application is as follows:

a mask comprising a mask body covering an oral cavity and a nasal cavity, the mask body comprising:

left vertical edge and right vertical edge respectively positioned at two lateral sides of the mask main body,

upper and lower transverse edges respectively positioned on two vertical sides of the mask main body,

transversely penetrate through the mask main body and are sequentially distributed from top to bottom after the mask main body is unfolded: a first crease, a second crease, a third crease and a fourth crease,

a first cover section formed between the first fold and the second fold,

a second cover section formed between the third fold and the fourth fold,

a third cover section formed between the second fold and the third fold,

a fourth cover section extending upward from the first fold, an

A fifth shroud segment extending downwardly from the fourth fold;

the first cover section is fixedly connected between the third cover section and the fourth cover section at the left vertical edge and the right vertical edge, and the second cover section is fixedly connected between the third cover section and the fifth cover section;

The first cover section and the second cover section are respectively positioned on two opposite sides of the third cover section, and a first unconnected separation area which extends continuously upwards from the first crease is formed between the first cover section and the fourth cover section at the left vertical edge or/and the right vertical edge.

The first aspect may further comprise one or more of the following preferred aspects:

the width of the first separation zone in the vertical direction is more than or equal to 2.5mm.

The width of the first separation zone in the vertical direction is 2.5-6 mm.

The mask body further includes:

a fifth crease which transversely penetrates the mask body and is positioned below the fourth crease after the mask body is unfolded,

a sixth crease extending transversely through the mask body and located below the fifth crease after the mask body is unfolded,

a sixth cover segment formed between the fifth crease and the sixth crease, an

A seventh shroud segment extending downwardly from the sixth fold;

the fifth cover section is formed between the fourth crease and the fifth crease, and the sixth cover section is fixedly connected between the fifth cover section and the seventh cover section at the left vertical edge and the right vertical edge.

The second cover section and the sixth cover section are respectively positioned on two opposite sides of the fifth cover section, and a second separation area which is not connected and extends upwards continuously from the third crease is formed between the second cover section and the fifth cover section at the left vertical edge or/and the right vertical edge.

A non-connected fourth separation zone extending continuously downward from the sixth fold is formed between the sixth and fifth cover segments at the left or/and right vertical edges.

The sum of the width of the second separation zone in the vertical direction and the width of the fourth separation zone in the vertical direction is not less than 3.5mm.

The sum of the width of the second separation zone in the vertical direction and the width of the fourth separation zone in the vertical direction is 3.5-11mm.

The sum of the width of the second separation zone in the vertical direction and the width of the fourth separation zone in the vertical direction is 5-9mm.

The second mask segment and the sixth mask segment are located on the same side of the fifth mask segment, and the mask body further includes:

a seventh fold line extending transversely through the mask body and located below the sixth fold line after the mask body is unfolded,

an eighth fold extending transversely through the mask body and located below the seventh fold after the mask body is unfolded,

An eighth cover section formed between the seventh fold and the eighth fold, and

a ninth shroud segment extending downwardly from the eighth fold;

the eighth cover section is fixedly connected between the seventh cover section and the ninth cover section at the left vertical edge and the right vertical edge;

the seventh cover section is formed between the sixth crease and the seventh crease, and the seventh cover section and the ninth cover section are respectively positioned on two opposite sides of the eighth cover section;

a non-connected fifth separation zone extending continuously upward from the fifth crease is formed between the sixth and seventh cover segments at the left or/and right vertical edges.

A non-connected sixth separation zone extending continuously downward from the eighth fold is formed between the seventh and eighth cover segments at the left or/and right vertical edges.

A non-connected third separation zone extending continuously downward from the fourth fold is formed between the third cover section and the second cover section at the left vertical edge or/and the right vertical edge.

The sum of the width of the first separation zone in the vertical direction and the width of the third separation zone in the vertical direction is not less than 3.5mm.

The sum of the width of the first separation zone in the vertical direction and the width of the third separation zone in the vertical direction is 3.5-11mm.

The sum of the width of the first separation zone in the vertical direction and the width of the third separation zone in the vertical direction is 5-9mm.

At the left and right vertical edges, the first cover section is hot pressed, stitched or riveted between the third and fourth cover sections, and the second cover section is hot pressed, stitched or riveted between the third and fifth cover sections.

The first cover section is fixedly connected between the third cover section and the fourth cover section in a hot-pressing mode at the left vertical edge and the right vertical edge, and the second cover section is fixedly connected between the third cover section and the fifth cover section in a hot-pressing mode;

the left vertical edge and the right vertical edge are respectively provided with a plurality of rows of welding points which are arranged at intervals along the vertical direction, and at least one row of welding points which are adjacent to the first crease and are positioned above the first crease are not fused into the third cover section.

Two rows of weld points immediately above the first fold are not fused into the third cover section.

The upper transverse edge is provided with an anti-fog strip and/or a nose clip.

The third cover section has a width in the vertical direction that is greater than a sum of the width of the first cover section in the vertical direction and the width of the second cover section in the vertical direction.

The left vertical edge and the right vertical edge are respectively provided with a binding belt fixedly connected with the mask main body.

In order to solve the technical problem, a second scheme provided by the application is as follows:

a first cover section formed between the first fold and the second fold,

a second cover section formed between the third fold and the fourth fold,

a third cover section formed between the second fold and the third fold,

a fourth cover section extending upward from the first fold, an

A fifth shroud segment extending downwardly from the fourth fold;

The first cover section and the second cover section are respectively positioned at two opposite sides of the third cover section, and a disconnected separation area which continuously extends downwards from the fourth crease is formed between the third cover section and the second cover section at the left vertical edge or/and the right vertical edge.

The second version may also comprise one or more of the following preferred versions:

the width of the separation area in the vertical direction is more than or equal to 2.5mm.

An anti-fog strip or/and a nose clip are arranged at the upper transverse edge.

The beneficial effects of this application:

1. according to the mask, two adjacent folds of the mask body are arranged on two opposite sides of the fold connecting section, a continuous non-connecting area-separating area is arranged between the fold connecting section and the fold body, and further the adjacent folds have the freedom degree of translation in the left-right, up-down, front-back directions in the non-connecting area. The existence of the degree of freedom is matched with two adjacent folds to be respectively arranged on two opposite sides of the fold connecting section, so that the adjacent folds at the vertical edge can generate a cross lamination phenomenon when the mask is worn. The cross lamination phenomenon ensures that the length of the vertical edge of the mask body, which is contacted with the face, is shortened, the bulge phenomenon disappears, the mask body and the face are tightly attached together, the tightness of the mask when worn is improved, the protection effect is enhanced, and the possibility of being infected is reduced.

2. The non-connection area can be formed by simply and skillfully improving the traditional hot-pressing welding process which is originally applied to mask manufacturing, and the process is simple and feasible and is easy to popularize.

3. Two adjacent folds on the mask main body are separated by a certain distance, so that the face shape adaptability of the mask when the mask is worn is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present application and are not limiting of the present application.

Fig. 1 is a schematic view of a conventional mask as seen from the inside.

Fig. 2 is a schematic view of the conventional mask of fig. 1, as viewed from the outside.

Fig. 3 is a force analysis diagram of the conventional mask of fig. 1, as seen from the left during wearing.

Fig. 4 is a side view of the conventional mask of fig. 1 in a donned state with its left vertical side engaged with the face of a wearer.

Fig. 5 is a side view of the conventional mask of fig. 1 in a worn state.

Fig. 6 is a schematic view of the flow of air during inhalation by the wearer of fig. 5.

Fig. 7 is a schematic view of the flow of air during exhalation by the wearer of fig. 5.

Fig. 8 is a schematic view of the mask according to the first embodiment, as seen from the inside.

Fig. 9 is a schematic view of the mask according to the first embodiment, as seen from the outside.

Fig. 10 is a side view of the mask of the first embodiment, as seen from the left side; wherein the ear strap is removed.

Fig. 11 is a side view of the mask of the first embodiment, as seen from the right side; wherein the ear strap is removed.

Fig. 12 is a simplified side view of the left vertical side of the mask body in the donned state of the mask according to the first embodiment.

Fig. 13 is a schematic side view of the left vertical side of the mask body in the wearing state of the mask according to the first embodiment.

Fig. 14 is a side view of the mask of the first embodiment in a worn state.

Fig. 15 is an enlarged view of the portion X1 in fig. 14.

Fig. 16 is a side view showing two different variations of the left vertical edge of the mask body in the wearing state of the mask according to the first embodiment.

Fig. 17 is a side view of the mask body according to the first embodiment when the mask body is unfolded, as seen from the left side.

Fig. 18 is a side view of the mask body of the first embodiment with the attachment point on the left vertical side removed.

Fig. 19 is a side view of the mask of the second embodiment, as seen from the left side; wherein the ear strap is removed.

Fig. 20 is a side view of the mask of the third embodiment, as seen from the left side; wherein the ear strap is removed.

Fig. 21 is a side view of the mask of the fourth embodiment, as seen from the left side; wherein the ear strap is removed.

Fig. 22 is a schematic side view of the left vertical side of the mask body in the wearing state of the mask according to the fourth embodiment.

Fig. 23 is a side view of the mask body of the fourth embodiment with the attachment point on the left vertical side removed.

Fig. 24 is a side view of the mask of the fifth embodiment, as seen from the left side; wherein the ear strap is removed.

Fig. 25 is a side view of the mask of the sixth embodiment, as seen from the left side; wherein the ear strap is removed.

Fig. 26 is a side view of the mask body of the sixth embodiment with the welding point on the left vertical side removed.

Wherein:

1-a mask main body, 2-ear belts, 3-nose clips, 4-antifogging strips and 5-faces;

100-folding;

1 a-left vertical edge, 1 b-right vertical edge, 1 c-upper transverse edge, 1 d-lower transverse edge, 1E-inner surface, 1F-outer surface;

101-first fold, 102-second fold, 103-third fold, 104-fourth fold, 105-fifth fold, 106-sixth fold, 107-seventh fold, 108-eighth fold;

10-fusing points;

11-first cover section, 12-second cover section, 13-third cover section, 14-fourth cover section, 15-fifth cover section, 16-sixth cover section, 17-seventh cover section, 18-eighth cover section, 19-ninth cover section;

1000-secondary overlapping areas of adjacent folds;

1001-first separation zone, 1002-second separation zone, 1003-third separation zone, 1004-fourth separation zone, 1005-fifth separation zone, 1006-sixth separation zone;

t is the distance between two adjacent rows of welding points, H is the height of a single welding point;

w1-width of the first cover section, W2-width of the second cover section, W3-width of the third cover section, W5-width of the fifth cover section, W6-width of the sixth cover section;

w11-width of first separation zone, W12-width of second separation zone, W13-width of third separation zone, W14-width of fourth separation zone, W15-width of fifth separation zone, W16-width of sixth separation zone;

Δ1-vertical distance between the fourth fold and the first fold when the mask is worn; the vertical distance between the third crease and the sixth crease when the delta 2-mask is in a wearing state; delta 3-the difference between the width of the third cover section minus the width of the first cover section and the width of the second cover section in the non-donned state of the mask; Δ4-the width of the fifth mask segment minus the difference between the width of the second mask segment and the width of the sixth mask segment in the non-donned state;

u-ridge, D-void.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without the benefit of the present disclosure, are intended to be within the scope of the present application based on the described embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in the specification and claims of this application, the terms "a" and "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

The numbering of the components itself, e.g. "first", "second", etc., in the description and claims of this application is merely for distinguishing between the described objects and not for any sequential or technical meaning. And the terms "connected," "coupled," and the like, as used herein, are defined as connected (coupled) directly or indirectly. The application says "a plurality" means not less than two.

Embodiments of the present application will now be described with reference to the accompanying drawings.

Embodiment one:

fig. 8 to 18 show a first embodiment of the mask of the present application, which comprises a mask body 1 and a strap connected to the mask body. The aforementioned band is specifically an ear band 2, and when in use, the wearer hangs the ear band 2 on the ear, and the mask body 1 covers the mouth and nose to filter the gas. It should be apparent that in some other embodiments of the present application, the strap may also be a head strap that is tied to the head of the wearer.

The mask body 1 is substantially rectangular, and has: the mask is attached to the inner surface 1E of the face of the human body, the outer surface 1F facing away from the face of the human body (facing the environment) is respectively positioned on the left vertical edge 1a and the right vertical edge 1b on the two lateral sides of the mask body, the upper lateral edge 1c and the lower lateral edge 1d on the two vertical sides of the mask body and six folds extending transversely. The six folds are a first fold 101, a second fold 102, a third fold 103, a fourth fold 104, a fifth fold 105 and a sixth fold 106, respectively, and each fold extends from the left vertical edge 1a of the mask body to the right vertical edge 1b of the mask body transversely, that is, each fold transversely penetrates the whole mask body 1. The six folds have the following positional relationship: when the mask body 1 is unfolded, the first fold 101, the second fold 102, the third fold 103, the fourth fold 104, the fifth fold 105 and the sixth fold 106 are sequentially distributed from top to bottom, as shown in fig. 17.

The above-mentioned six folds divide the mask body 1 into a plurality of vertical mask segments, as shown in fig. 10 and 11, which are respectively: a first cover segment 11 formed between the first fold 101 and the second fold 102, a second cover segment 12 formed between the third fold 103 and the fourth fold 104, a third cover segment 13 formed between the second fold 104 and the third fold 103, a fourth cover segment 14 extending upward from the first fold 101, a fifth cover segment 15 formed between the fourth fold 104 and the fifth fold 105, a sixth cover segment 16 formed between the fifth fold 105 and the sixth fold 106, and a seventh cover segment 17 extending downward from the sixth fold 106.

The lengths of the first, second, third, fourth, fifth, sixth and seventh mask segments 11, 12, 13, 14, 15, 16 and 17 in the transverse direction extend through the mask body 1—the lengths of the respective mask segments extend transversely from the left vertical edge 1a to the right vertical edge 1b of the mask body.

The fifth cover section 15 is formed between the fourth fold 104 and the fifth fold 105, and the fifth fold 105 is located below the fourth fold 104, so that the fifth cover section 15 extends downward from the fourth fold 104.

The first cover section 11 and the second cover section 12 are located on opposite sides of the third cover section 13, respectively, and the second cover section 12 and the sixth cover section 16 are located on opposite sides of the fifth cover section 15, respectively. Specifically, the first cover section 11 is located outside the third cover section 13, the second cover section 12 is located inside the third cover section 13 and outside the fifth cover section 15, and the sixth cover section 16 is located inside the fifth cover section 15.

At the left vertical edge 1a and the right vertical edge 1b of the mask body 1, the first mask segment 11 is fixedly connected between the third mask segment 13 and the fourth mask segment 14, the second mask segment 12 is fixedly connected between the third mask segment 13 and the fifth mask segment 15, and the sixth mask segment 16 is fixedly connected between the fifth mask segment 15 and the seventh mask segment 17. In this embodiment, the second cover section 12 is abutted against and fixedly connected between the third cover section 13 and the fifth cover section 15. In this embodiment, the first cover section 11 and the third cover section 13 and the fourth cover section 14, the second cover section 12 and the third cover section 13 and the fifth cover section 15, and the sixth cover section 16 and the fifth cover section 15 and the seventh cover section 17 are all fixedly connected by a hot pressing method, but other methods such as knitting stitching and riveting can be adopted.

It should be noted that the aforementioned "expansion" ("expansion in the case of the mask body after expansion") does not mean that the mask body is "expanded" to adapt to the face of the wearer when the mask is in normal use, that is, "expanded" in the present application is different from "expanded" in normal use as shown in fig. 5, but means that the mask body 1 is completely pulled apart in the up-down direction (vertically), so that the corresponding mask segments originally thermally pressed and fixedly connected at the left vertical edge and the right vertical edge are mutually separated and expanded, as shown in fig. 17.

The location of the first mask segment 11, particularly the overlapping location of the first mask segment 11 with the third and fourth mask segments 13, 14, constitutes a "fold" 100 commonly known in the art of mask bodies. The region of the second mask segment 12, in particular the region of the second mask segment 12 overlapping the third 13 and fifth 15 mask segments, forms a second fold 100 of the mask body. The sixth mask segment 16, in particular the overlapping region of the sixth mask segment 16 with the fifth and seventh mask segments 15, 17, forms a third fold 100 of the mask body. Thus, the mask body 1 has three folds 100 in total. Thus, three pleats 100 are provided on the mask body 1 in total, and the three pleats 100 are sequentially distributed from top to bottom. The three folds 100 extend transversely through the mask body 1, from the left vertical edge 1a to the right vertical edge 1b thereof. Obviously, the third cover section 13 is a pleat connection connecting the uppermost pleat 100 and the second pleat 100, and the fifth cover section 15 is a pleat connection connecting the second pleat 100 and the third pleat 100.

The key improvement of this embodiment is: the first cover section 11 and the second cover section 12 are located on opposite sides of the third cover section 13, respectively. In particular, the first cover section 11 is located on the outside of the third cover section 13, i.e. the side facing away from the wearer's face, and the second cover section 12 is located on the inside of the third cover section 13, i.e. the side facing towards the wearer's face. A first separation region 1001, which is not connected and extends continuously upward from the first fold 101, is formed between the first cover segment 11 and the third cover segment 13 at the left vertical side 1a and the right vertical side 1b of the mask body 1. The foregoing "unconnected" means: the first cover section 11 and the third cover section 13 are not connected to each other at the first separation region 1001. The foregoing "continuous" means that the first separation zone is an uninterrupted, unitary structure.

Furthermore, the second and sixth cover sections 12, 16 are located on opposite sides of the fifth cover section 15, respectively. Specifically, the second cover section 12 is located outside the fifth cover section 15, and the sixth cover section 16 is located inside the fifth cover section 15. Furthermore, a non-connected second separation region 1002 extending continuously upward from the third crease 103 is formed between the second cover section 12 and the fifth cover section 15.

As described in the background art, during the action of wearing the mask, the top and bottom of the vertical sides 1a,1b of the mask body 1 are brought close to each other by the tension of the ear strap 2. Only after the tension of the ear strap 2 to the mask body 1 is balanced with the reverse acting force of the wearer's face to the mask body 1, the shape and position of the mask body 1 on the wearer's head are fixed, and the distance between the upper and lower ends of the left vertical edge 1a and the right vertical edge 1b is usually shortened to a smaller balance value. Because the third cover section 13 is not fixedly connected to the first cover section 11 in the area above the first fold 101 (i.e., the first separation region 1001), the third cover section 13 in the first separation region 1001 is free to deform and is not limited by the pulling of the first cover section 11 and the fourth cover section 14. Similarly, because the fifth cover section 15 and the second cover section 12 are also not connected in the area above the third crease 103 (i.e., the second separation region 1002), the fifth cover section 15 at the second separation region 1002 is also free to deform. In this way, when the top and bottom of the vertical sides 1a,1b of the mask body 1 approach each other, the third mask segment 13 of the first separation region 1001 and the fifth mask segment 15 of the second separation region 1002 undergo bending deformation due to the vertical pressing force, so that the fourth fold 104 moves above the first fold 101 (or the first fold moves below the fourth fold), and the sixth fold 106 moves above the third fold 103. If the distances between the top and bottom of the vertical edges 1a,1b are small, only after the third cover section 13 of the first separation region 1001 and the fifth cover section 15 of the second separation region 1002 are substantially reversely straightened, the relative displacement between the fourth fold 104 and the first fold 101 and the relative displacement between the sixth fold 106 and the third fold 103 will stop, and the height difference Δ1≡w11 between the fourth fold 104 and the first fold 101 and the height difference Δ2≡w12 between the sixth fold 106 and the third fold 103 will be equal. The left vertical edge 1a and the right vertical edge 1b of the mask are shortened by twice the sum of W11 and W12 at the fold positions. In this way, the large-size displacement between two adjacent pleats 100 is displaced in a staggered manner, so that the two pleats 100 are also partially overlapped-the lower portion of the upper pleat 100 is overlapped on the upper outer side of the lower pleat 100, thereby forming a secondary overlapped region 1000 of the adjacent pleats as shown in fig. 15. Thus, the large bulge U shown in fig. 4 and 5 is not formed in the middle of the vertical edges on two sides of the mask, and a large gap D shown in fig. 4 and 5 is not formed between the left vertical edge 1a and the face 5 and between the right vertical edge 1b and the face 5, so that the vertical edges on two sides are well attached to the face.

It will be appreciated by those skilled in the art that if only the first separation region 1001 is provided on the mask body, even if the second separation region 1002 is not provided, the effect of reducing or even eliminating the ridge U and the void D can be achieved by the bending deformation of the third mask segment 13.

Through extensive testing, it was found that the values of W11 and W12 described above, if capable of reaching 2.5mm, were significantly reduced by the bulge U and the void D when worn. When W11 and W12 reach 3mm, the effect is better. The values of W11 and W12 are preferably not too large, but are preferably in the range of 2.5 to 6mm, more preferably 3 to 6mm, respectively, and of course, this is not essential.

As described above, at the positions of the left vertical edge 1a and the right vertical edge 1b of the mask body 1, the first mask segment 11 is fixedly connected between the third mask segment 13 and the fourth mask segment 14 by a known hot pressing process, the second mask segment 12 is fixedly connected between the third mask segment 13 and the fifth mask segment 15 by a known hot pressing process, and the sixth mask segment 16 is fixedly connected between the fifth mask segment 15 and the seventh mask segment 17 by a known hot pressing process. As shown in fig. 10 and 11, the foregoing "hot pressing process for fastening" forms a plurality of rows of welding points 10 arranged equidistantly along the vertical direction on the left vertical side 1a and the right vertical side 1b, that is, four rows of welding points are arranged equidistantly, the distance T between two rows of welding points is approximately equal to 1mm, and the height H of each welding point 10 is approximately equal to 1.5-2mm. The mask segments at the fold 100 are secured together by the weld 10.

It is obviously not possible to form the first 1001 and second 1002 separation zones if the rows of welds 10 are still arranged in a conventional manner, i.e. each weld 10 fixedly connects each mask segment in which it is located. In this embodiment, the conventional hot-press fusion process is improved, so that the first separation region 1001 and the second separation region 1002 are formed at the positions of the left vertical edge 1a and the right vertical edge 1b of the mask body 1:

referring again to fig. 10 and 11, the two rows of fusion points 10 immediately above the first fold 101 and immediately adjacent to the first fold 101 are fused only into the fourth cover section 14 and the first cover section 11, and not into the third cover section 13. Such that the two rows of fusion points 10 only secure the fourth cover section 14 and the first cover section 11 without connecting the third cover section 13 to the first cover section 11, thereby forming the above-mentioned first separation zone 1001 between the third cover section 13 and the first cover section 11.

The term "immediately adjacent" means "closest to".

Likewise, the other two rows of fusion points 10 immediately adjacent to the third crease 103 and above the third crease 103 are only fused into the third and second cover segments 13, 12, and not into the fifth cover segment 15. Such that the two rows of fusion points 10 only secure the third and second cover segments 13, 12 without connecting the fifth cover segment 15 to the second cover segment 12, thereby forming the above-described second separation zone 1002 between the fifth and second cover segments 15, 12.

In some other embodiments of the present application, only one row of the welding points 10 immediately adjacent to the first crease 101 and above the first crease 101 may not be fused into the third cover section, or three, four, five or more rows of the welding points 10 immediately adjacent to the first crease 101 and above the first crease 101 may not be fused into the third cover section 13, so as to reduce or increase the width W11 of the first separation region 1001. It is apparent that a similar method may be used to decrease or increase the width W12 of the second separation region 1002.

An anti-fog strip 4 and a nose clip 5 are arranged at the upper transverse edge 1 c. The antifogging strip 4 is a sponge with a certain thickness and is fixedly connected to the inner side of the mask body 1. The nose clip 5 is an aluminum strip extending transversely and is hidden and fixed inside the mask body 1. The antifog strip 4 is matched with the nose clip 5 for use, so that the gap between the inner surface of the mask main body and the nose bridge is filled, and the mask main body 1 is more fit with the outline of the nose. The nose bridge has no sense of compression when being worn, and the air flow can not overflow from the upper edge when breathing and talking.

Embodiment two:

fig. 19 shows a second embodiment of the mask of the present application, which has substantially the same structure as the first embodiment described above, with the only difference that:

at the left and right vertical sides 1a, 1b, a third disconnected separating region 1003 extending continuously downward from the fourth fold 104 is formed between the second and third cover segments 12, 13, and a fourth disconnected separating region 1004 extending continuously downward from the sixth fold 106 is formed between the fifth and sixth cover segments 15, 16.

That is, in the present embodiment, not only the separation region not connected with the first cover section 11 but also the separation region not connected with the second cover section 12 below the first cover section is formed between the third cover section 13. The fifth cover section 15 forms not only a disconnection between itself and the second cover section 12, but also a disconnection between itself and the sixth cover section 16 below the second cover section. The advantage of this arrangement is that:

assuming that the widths of the first separation region 1001 and the second separation region 1002 in the present embodiment are equal to the widths of the first separation region 1001 and the second separation region 1002 in the present embodiment, when the mask of the present embodiment is in the wearing state, the third cover section 13 and the fifth cover section 15 at the positions of the vertical sides 1a and 1b thereof can be deformed to a larger dimension, and the ridge U and the gap D shown in fig. 4 and 5 do not appear even if the upper and lower ends of the left vertical side 1a and the right vertical side are closer.

Specifically, the deformable width of the third cover section 13 is increased from W11 of the first embodiment to w11+w13, and the deformable width of the fifth cover section 15 is increased from W12 of the first embodiment to w12+w14.

The method for forming the first separation region 1001 and the second separation region 1002 is the same as that of the first embodiment, and will not be described here. The third separation region 1003 and the fourth separation region 1004 are also formed in a similar manner: referring to fig. 19, the row of weld points 10 immediately below the fourth fold 104 only melts into the fifth and second cover segments 15, 12, but not into the third cover segment 13. The two rows of welding points 10 immediately below the sixth fold 106 melt only into the seventh and sixth cover segments 17, 16 and not into the fifth cover segment 15.

It will be appreciated that based on the structural design described above, there is a mathematical relationship: w11+w13=4h+3t, w12+w14=3h+2t. Wherein H is the height of a single welding point, and T is the distance between two adjacent rows of welding points.

In general, T is approximately 1mm, and the height H of a single fusion point is approximately 1.5-2mm.

If W11+W13 can reach 3.5mm or more, the elimination of the bump U and the void D will be more remarkable. The W11+W13 is not particularly limited, and W11+W12 is preferably in the range of 3.5 to 11mm, more preferably 5 to 9mm, although it is not essential.

Embodiment III:

fig. 20 shows a third embodiment of a mask of the type described herein, which has substantially the same structure as the first embodiment, except that: the first cover section 11 is located inside the third cover section 13, the second cover section 12 is located outside the third cover section 13 and inside the fifth cover section 15, and the sixth cover section 16 is located outside the fifth cover section 15.

Embodiment four:

fig. 21 to 23 show a fourth embodiment of the mask according to the present invention, wherein the mask body 1 of the mask is provided with eight folds in total, which are respectively a first fold 101, a second fold 102, a third fold 103, a fourth fold 104, a fifth fold 105, a sixth fold 106, a seventh fold 107 and an eighth fold 108 that are sequentially distributed from top to bottom after the mask body 1 is unfolded.

The mask body 1 is divided into a plurality of vertical mask segments by the eight folds, and the mask segments are respectively: a first cover segment 11 formed between the first fold 101 and the second fold 102, a second cover segment 12 formed between the third fold 103 and the fourth fold 104, a third cover segment 13 formed between the second fold 104 and the third fold 103, a fourth cover segment 14 extending upward from the first fold 101, a fifth cover segment 15 formed between the fourth fold 104 and the fifth fold 105, a sixth cover segment 16 formed between the fifth fold 105 and the sixth fold 106, a seventh cover segment 17 formed between the sixth fold 106 and the seventh fold 107, a sixth cover segment 19 formed between the seventh fold 107 and the eighth fold 108, a ninth cover segment 19 extending downward from the eighth fold 108,

obviously, as in the first embodiment, the fifth cover section 15 also extends downwardly from the fourth fold 104 and the seventh cover section 17 also extends downwardly from the sixth fold 106. This is not contradictory to the aforementioned "fifth cover segment 15 is formed between the fourth fold 104 and the fifth fold 105, and the seventh cover segment 17 is formed between the sixth fold 106 and the seventh fold 107".

At the left vertical edge 1a and the right vertical edge of the mask body 1, the first mask segment 11 is fixedly connected between the third mask segment 13 and the fourth mask segment 14 in a hot pressing manner, the second mask segment 12 is fixedly connected between the third mask segment 13 and the fifth mask segment 15 in a hot pressing manner, the sixth mask segment 16 is fixedly connected between the fifth mask segment 15 and the seventh mask segment 17 in a hot pressing manner, and the eighth mask segment 18 is fixedly connected between the seventh mask segment 17 and the ninth mask segment 19 in a hot pressing manner.

The first mask segment 11 is positioned to form the uppermost first fold 100 of the mask body. The second mask segment 12 is positioned to form a second fold 100 in the mask body. The sixth mask segment 16 forms a third fold 100 in the mask body and the eighth mask segment 18 forms a fourth fold 100 in the mask body at the lowermost position. The mask body 1 has the four folds 100 in total.

The first cover section 11 is located outside the third cover section 13, the second cover section 12 is located inside the third cover section 13 and outside the fifth cover section 15, the sixth cover section 16 is located outside the fifth cover section 15 and inside the seventh cover section 17, and the eighth cover section 18 is located outside the seventh cover section 17. It can be seen that the second cover section 12 and the sixth cover section 16 are on the same side (outside) of the fifth cover section 15.

In the present embodiment, a first separation region 1003, which is not connected, is formed between the first cover segment 11 and the third cover segment 13 at the left vertical edge 1a and the right vertical edge of the mask body 1, and a fifth separation region 1005, which is not connected, is formed between the seventh cover segment 17 and the sixth cover segment 16, which is continuously and upwardly extended from the fifth crease 105.

In the wearing state, the mask body is substantially shaped like the left vertical edge of fig. 22, and can be fitted to the face of the wearer in a good manner.

Fifth embodiment:

fig. 24 shows a fifth embodiment of the mask of the present application, which is substantially identical in construction to embodiment four, except that a non-joined sixth separation zone 1006 extending continuously downwardly from the eighth fold 108 is formed between the seventh and eighth mask segments 17, 18.

From the above description, it will be readily appreciated by those skilled in the art that: in the first to fifth embodiments, only one of the separation regions may be retained in each of the embodiments, and the ridge U and the gap D at the vertical edge position may still be improved by the bending deformation of the only one separation region when worn.

Example six:

compared with the first embodiment, the first embodiment improves the deformable widths of the third cover section and the fifth cover section by increasing the number of the separation areas, so that the mask can better eliminate the bulges and the gaps even if the two ends of the vertical edge are closer to each other than the first embodiment in the wearing state. However, after all, the vertical width of each separation area is limited, and the width of the separation area is not too large, so that if the mask of the second embodiment is worn by a small face person, the upper and lower ends of the vertical edge of the mask main body are further close, and then a bulge and a gap with certain sizes may still be formed. In view of this, fig. 25 and 26 illustrate a sixth specific embodiment of the mask of the present application to further increase the deformable widths of the third and fifth mask segments.

In the sixth embodiment, the width W3 of the third cover section 13 in the vertical direction is larger than the sum of the width W1 of the first cover section 11 in the vertical direction and the width W2 of the second cover section 12 in the vertical direction, and the width W5 of the fifth cover section 15 in the vertical direction is larger than the sum of the width W2 of the second cover section 12 in the vertical direction and the width W6 of the sixth cover section 16 in the vertical direction. I.e., W3- (w1+w2) =Δ3 > 0, and W5- (w2+w6) =Δ4 > 0.

Thus, the deformable width of the third cover section 13 of the present embodiment is increased from w11+w13 of the second embodiment to w11+w13+Δ3, and the deformable width of the fifth cover section 15 is increased from w12+w14 of the second embodiment to w12+w14+Δ4. Compared with the second embodiment, even if the upper and lower ends of the vertical edge of the mask of the present embodiment are further close to each other when the mask is worn, the mask can still be well attached to the face.

The values of Delta3 and Delta4 are not too small nor too large, preferably 1-3mm.

The "vertical sides" in the above embodiments refer to the left vertical side and the right vertical side of the mask body unless otherwise specified.

As will be apparent to those skilled in the art from the foregoing description: if a separation zone is provided on only one of the left and right vertical sides, the vertical side (left or right vertical side) provided with the separation zone can be made to better fit the wearer's face.

The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, which is defined by the appended claims.

Claims

1. A mask comprising a mask body (1) covering the mouth and nose, the mask body (1) comprising:

left vertical edge (1 a) and right vertical edge (1 b) respectively positioned at two lateral sides of the mask main body,

an upper transverse edge (1 c) and a lower transverse edge (1 d) which are respectively positioned at two vertical sides of the mask main body,

transversely penetrate through the mask main body and are sequentially distributed from top to bottom after the mask main body is unfolded: a first fold (101), a second fold (102), a third fold (103) and a fourth fold (104),

a first cover section (11) formed between the first fold and the second fold,

a second cover section (12) formed between the third fold and the fourth fold,

a third cover section (13) formed between the second fold and the third fold,

a fourth cover section (14) extending upward from the first fold, an

A fifth shroud segment (15) extending downwardly from the fourth fold;

at the left vertical edge (1 a) and the right vertical edge (1 b), the first cover section (11) is fixedly connected between the third cover section (13) and the fourth cover section (14), and the second cover section (12) is fixedly connected between the third cover section (13) and the fifth cover section (15);

Characterized in that the first cover section (11) and the second cover section (12) are respectively positioned at two opposite sides of the third cover section (13), and a first unconnected separation area (1001) which extends upwards continuously from the first crease (101) is formed between the first cover section (11) and the third cover section (13) at the left vertical edge (1 a) or/and the right vertical edge (1 b);

at the left vertical edge (1 a) and the right vertical edge (1 b), the first cover section (11) is fixedly connected between the third cover section (13) and the fourth cover section (14) in a hot pressing mode, and the second cover section (12) is fixedly connected between the third cover section (13) and the fifth cover section (15) in a hot pressing mode;

the left vertical edge (1 a) and the right vertical edge (1 b) are respectively provided with a plurality of rows of welding points (10) which are arranged at intervals along the vertical direction, at least one row of welding points (10) which are adjacent to the first crease (101) and are positioned above the first crease (101) is not fused into the third cover section (13) but is fused into the first cover section (11) and the fourth cover section (14), thereby forming the first separation zone (1001);

the width (W3) of the third cover section (13) in the vertical direction is greater than the sum of the width (W1) of the first cover section (11) in the vertical direction and the width (W2) of the second cover section (12) in the vertical direction.

2. The mask according to claim 1, wherein the width (W11) of the first separation zone (1001) in the vertical direction is ≡2.5mm.

3. The mask according to claim 2, wherein the width (W11) of the first separation zone (1001) in the vertical direction is 2.5-6 mm.

4. The mask according to claim 1, wherein the mask body (1) further comprises:

a fifth crease (105) which penetrates the mask body transversely and is positioned below the fourth crease after the mask body is unfolded,

a sixth crease (106) which penetrates the mask body in the transverse direction and is positioned below the fifth crease after the mask body is unfolded,

a sixth cover segment (16) formed between the fifth crease and the sixth crease, and

a seventh shroud segment (17) extending downwardly from the sixth fold;

the fifth cover section (15) is formed between the fourth crease (104) and the fifth crease (105), and the sixth cover section (16) is fixedly connected between the fifth cover section (15) and the seventh cover section (17) at the left vertical edge (1 a) and the right vertical edge (1 b).

5. Mask according to claim 4, characterized in that the second (12) and sixth (16) mask segments are located on opposite sides of the fifth mask segment (15), respectively, and that a non-connected second separation zone (1002) extending continuously upwards from the third crease (103) is formed between the second (12) and fifth mask segments (15) at the left (1 a) or/and right (1 b) vertical edge.

6. Mask according to claim 5, characterized in that a non-connected fourth separation zone (1004) extending continuously downwards from the sixth crease (106) is formed between the sixth mask segment (16) and the fifth mask segment (15) at the left vertical edge (1 a) or/and the right vertical edge (1 b).

7. The mask according to claim 6, wherein a sum of a width (W12) of the second separation region (1002) in a vertical direction and a width (W14) of the fourth separation region (1004) in a vertical direction is not less than 3.5mm.

8. The mask according to claim 7, wherein the sum of the width (W12) of the second separation zone (1002) in the vertical direction and the width (W14) of the fourth separation zone (1004) in the vertical direction is 3.5-11mm.

9. The mask according to claim 8, wherein the sum of the width (W12) of the second separation zone (1002) in the vertical direction and the width (W14) of the fourth separation zone (1004) in the vertical direction is 5-9mm.

10. The mask according to claim 4, wherein the second (12) and sixth (16) mask segments are located on the same side of the fifth mask segment (15), the mask body (1) further comprising:

A seventh crease (107) which penetrates the mask body transversely and is positioned below the sixth crease after the mask body is unfolded,

an eighth fold (108) extending transversely through the mask body and located below the seventh fold after the mask body is unfolded,

an eighth cover section (18) formed between the seventh fold and the eighth fold, and

a ninth shroud segment (19) extending downwardly from the eighth fold;

the eighth cover section (18) is fixedly connected between the seventh cover section (17) and the ninth cover section (19) at the left vertical edge (1 a) and the right vertical edge (1 b);

the seventh cover section (17) is formed between the sixth crease (106) and the seventh crease (107), the seventh cover section (17) and the ninth cover section (19) being located on opposite sides of the eighth cover section (18), respectively;

at the left vertical edge (1 a) or/and the right vertical edge (1 b), a non-connected fifth separation zone (1005) extending continuously upwards from the fifth crease (105) is formed between the sixth cover section (16) and the seventh cover section (17).

11. Mask according to claim 10, characterized in that a non-connected sixth separation zone (1006) extending continuously downwards from the eighth crease (108) is formed between the seventh mask section (17) and the eighth mask section (18) at the left vertical edge (1 a) or/and the right vertical edge (1 b).

12. Mask according to claim 1, characterized in that a non-connected third separation zone (1003) extending continuously downwards from the fourth crease (104) is formed between the third mask segment (13) and the second mask segment (12) at the left vertical edge (1 a) or/and the right vertical edge (1 b).

13. The mask according to claim 12, wherein a sum of a width (W11) of the first separation region (1001) in a vertical direction and a width (W13) of the third separation region (1003) in a vertical direction is not less than 3.5mm.

14. The mask according to claim 13, wherein the sum of the width (W11) of the first separation zone (1001) in the vertical direction and the width (W13) of the third separation zone (1003) in the vertical direction is 3.5-11mm.

15. The mask according to claim 14, wherein the sum of the width (W11) of the first separation zone (1001) in the vertical direction and the width (W13) of the third separation zone (1003) in the vertical direction is 5-9mm.

16. Mask according to claim 1, characterized in that the two rows of the welding points (10) immediately above the first crease (101) do not melt into the third mask section (13).

17. Mask according to claim 1, characterized in that the upper lateral edge (1 c) is provided with anti-fog strips (4) or/and nose clips (5).

18. Mask according to claim 1, characterized in that the left vertical edge (1 a) and the right vertical edge (1 b) are provided with straps, respectively, which are fixedly connected to the mask body (1).

19. Mask according to claim 1, characterized in that the difference between the width (W3) of the third mask segment (13) in the vertical direction minus the width (W1) of the first mask segment (11) in the vertical direction and the width (W2) of the second mask segment (12) in the vertical direction is 1-3mm.

20. A mask comprising a mask body (1) covering the mouth and nose, the mask body (1) comprising:

a first cover section (11) formed between the first fold and the second fold,

A second cover section (12) formed between the third fold and the fourth fold,

a third cover section (13) formed between the second fold and the third fold,

a fourth cover section (14) extending upward from the first fold, an

A fifth shroud segment (15) extending downwardly from the fourth fold;

characterized in that the first cover section (11) and the second cover section (12) are respectively positioned at two opposite sides of the third cover section (13), and a disconnected separation area which continuously extends downwards from the fourth crease (104) is formed between the third cover section (13) and the second cover section (12) at the left vertical edge (1 a) or/and the right vertical edge (1 b);

The left vertical edge (1 a) and the right vertical edge (1 b) are respectively provided with a plurality of rows of welding points (10) which are arranged at intervals along the vertical direction, at least one row of welding points (10) which are adjacent to the fourth crease (104) and are positioned below the fourth crease (104) is not fused into the third cover section (13) but is fused into the second cover section (12) and the fifth cover section (15), thereby forming the separation zone;

21. The mask of claim 20 wherein the separation zone has a vertical width of greater than or equal to 2.5mm.

22. Mask according to claim 20, characterized in that the upper lateral edge (1 c) is provided with anti-fog strips (4) or/and nose clips (5).

23. Mask according to claim 20, characterized in that the left vertical edge (1 a) and the right vertical edge (1 b) are provided with straps, respectively, fastened to the mask body (1).