WO2022170462A1

WO2022170462A1 - Face mask

Info

Publication number: WO2022170462A1
Application number: PCT/CN2021/076198
Authority: WO
Inventors: 马建民; 张晓燕
Original assignee: 江苏盛纳凯尔医用科技有限公司
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2022-08-18

Abstract

A face mask, comprising a face mask main body (1). The face mask main body (1) comprises: a left vertical edge (1a) and a right vertical edge (1b); a first crease (101), a second crease (102), a third crease (103) and a fourth crease (104), which are sequentially distributed from top to bottom after the face mask main body (1) is unfolded; a first mask section (11) formed between the first crease (101) and the second crease (102); a second mask section (12) formed between the third crease (103) and the fourth crease (104); a third mask section (13) formed between the second crease (102) and the third crease (103); a fourth mask section (14) extending upward from the first crease (101); and a fifth mask section (15) extending downward from the fourth crease (104). The first mask section (11) and the second mask section (12) are respectively located on two opposite sides of the third mask section (13). At the left vertical edge (1a) and/or the right vertical edge (1b), a disconnection separation area, which continuously extends upward from the first crease (101), is formed between the first mask section (11) and the third mask section (13). The face mask has good tightness when worn, and can improve the protection effect and reduce the possibility of infection.

Description

a mask

technical field

The present application relates to a mask.

Background technique

Mask is a kind of hygiene product, which generally refers to the product worn on the mouth and nose to filter the air entering the mouth and nose to prevent harmful gases, odors, and droplets from entering and leaving the wearer's mouth and nose. It is made of gauze or non-woven fabric. In fact, masks have a certain filtering effect on the air entering the lungs. Wearing masks has a very good effect when working in a polluted environment such as dust when respiratory infectious diseases are prevalent. Therefore, the tightness between the mask and the wearer's face is an important determinant.

At present, the masks sold on the market include N95 masks with good adhesion, but there are problems such as high price, poor design, and difficulty in breathing. And ordinary masks, even if they are equipped with nose clips or sponge strips, still have the problem of poor adhesion between the mask and the wearer's face and air leakage.

The main reason for the lack of tightness between traditional masks and the human face when wearing them is that the shape and size of the masks cannot fully adapt to the contours of the human face, which makes the vertical edges on both sides of the mask body have outward bulges. A large gap D is formed between the vertical edges on both sides of the main body and the face, as shown in Figure 1. The mechanical reasons for the formation of the aforementioned uplifts U and voids D are further analyzed as follows:

Figures 1 to 5 show a typical plane mask, and its mask body 1 has: two vertical sides on both sides of the transverse direction—the left vertical side 1a and the right vertical side 1b, and the two horizontal sides on the upper and lower sides— - Top horizontal edge 1c and bottom horizontal edge 1d. In general, the size of the vertical side is shorter than the long side, so the vertical side of the mask body 1 is usually called the short side and the horizontal side is called the long side in the industry. The mask body 1 is also provided with three folds 100, and these three folds 100 are arranged next to each other from top to bottom, and the folds of each fold 100 are hot-pressed and fixed at the left and right sides (vertical edges) of the mask body. . In order to allow the user to wear the mask to form a breathing cavity on the face that exists independently from the outside world, the mask body 1 is generally designed with a plurality of folds 100 . As shown in Figure 3, when people wear the mask, the vertical edges on both sides of the mask body 1 will be subjected to the pulling forces F1 and F2 of the ear straps 2, wherein the pulling force F1 can be decomposed into a downward vertical component force F1y And the horizontal component force F1x in the backward pair, the pulling force F2 can be decomposed into the vertical component force F2y in the upward direction and the horizontal component force F2x in the backward pair. The component force F1y moves the top of the left and right vertical sides of the mask body 1 downward, the component force F1x moves the top of the vertical side of the mask body 1 backward, the component force F1y moves the bottom of the vertical side of the mask body 1 upward, and the component force F2x makes the mask body 1 1 The bottom of the vertical side is moved back. In this way, the vertical side of the mask body 1 will be deformed as shown in Figure 4, and the mask body 1 after wearing is basically maintained in the form shown in Figures 4 and 6 due to the reverse facial force (static friction). . Compared with the initial stage of wearing shown in FIG. 3 , the distance between the two ends of the ear strap 2 in FIG. 4 is close, and the direction of the pulling force of the ear strap 2 to the mask body 1 has changed. In Fig. 4 and Fig. 5, the top and bottom of the left vertical side 1a of the mask body are closely fitted with the wearer's face 5 because they are directly pulled by the ear straps 2, but the middle of the left vertical side 1a, that is, the part where the folds are located, However, a very high bulge U is formed, and there is a large gap D between the left vertical edge 1a and the wearer's face 5 . This is because:

The two adjacent pleats 100 on the mask are arranged next to each other, and the multiple folds (or called mask segments) in each pleat 100 are heat-pressed and fixed at the vertical edge position. For example, in FIG. 3, at the position of the left vertical edge 1a of the mask body 1, the three

mask sections

11, 13, 14 of the uppermost pleat 100 are superimposed on each other and fixed by hot pressing. The folds 100 are thicker at the vertical side and hard in texture, and cannot be naturally bent when worn. As mentioned above, when people wear masks, the top and bottom of the left vertical edge 1a and the right vertical edge The pleats 100 are difficult to bend, so the joints of two adjacent pleats 100 will have an outward bulge U, which cannot fit well with the face 5, and there is a large gap between the left and right vertical edges and the wearer's face 5. the gap D.

Referring to Figure 6 and Figure 7 again, there is a certain resistance during breathing because of the characteristics of the mask main body 1, and there is a large gap D between the vertical edge of the mask main body and the wearer's face, and the airflow characteristics determine the wearer's When doing inhalation and exhalation, the gas will overflow into and out of the gap D between the vertical edge and the face. This phenomenon will undoubtedly reduce the protective effect of flat medical masks and increase the risk of infection among users.

SUMMARY OF THE INVENTION

The technical problem to be solved by this application is: to propose a mask with better airtightness to increase the protective effect and reduce the possibility of being infected.

In order to solve the above-mentioned technical problems, the first solution proposed by this application is:

A mask, comprising a mask body covering the mouth and nose, the mask body comprising:

They are located on the left vertical side and the right vertical side on both sides of the main body of the mask, respectively.

They are located on the upper and lower horizontal sides of the vertical sides of the mask body, respectively.

Horizontally running through the mask body and distributed in sequence from top to bottom after the mask body is unfolded: the first crease, the second crease, the third crease and the fourth crease,

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

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

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

a fourth cover segment extending upwardly from the first crease, and

a fifth cover segment extending downwardly from the fourth crease;

At the left vertical side and the right vertical side, the first cover segment is fixed between the third cover segment and the fourth cover segment, and the second cover segment is fixed to the between the third hood segment and the fifth hood segment;

The first hood segment and the second hood segment are respectively located on opposite sides of the third hood segment, and at the left vertical side or/and the right vertical side, the first hood segment and the An unconnected first separation area extending continuously upward from the first fold is formed between the fourth cover segments.

The first solution can also include one or more of the following preferred solutions:

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

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

The mask body also includes:

The fifth crease that runs through the mask body horizontally and is below the fourth crease after the mask body is unfolded,

The sixth crease that runs through the mask body horizontally and is below the fifth crease after the mask body is unfolded,

a sixth cover segment formed between the fifth fold and the sixth fold, and

a seventh cover segment extending downwardly from the sixth crease;

The fifth cover segment is formed between the fourth crease and the fifth crease, and at the left vertical edge and the right vertical edge, the sixth cover segment is fastened to the first vertical edge. between the fifth hood segment and the seventh hood segment.

The second hood segment and the sixth hood segment are located on opposite sides of the fifth hood segment, respectively, and at the left vertical side or/and the right vertical side, the second hood segment is connected to the An unconnected second separation area extending continuously upward from the third fold is formed between the fifth cover segments.

At the left vertical side or/and the right vertical side, a fourth unconnected fourth cover extending continuously downward from the sixth fold is formed between the sixth cover segment and the fifth cover segment separation zone.

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

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

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

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

The seventh crease that runs through the mask body horizontally and is below the sixth crease after the mask body is unfolded,

The eighth crease that runs through the mask body horizontally and is below the seventh crease after the mask body is unfolded,

an eighth cover segment formed between the seventh crease and the eighth crease, and

a ninth cover segment extending downwardly from the eighth crease;

At the left vertical side and the right vertical side, the eighth cover segment is fixedly connected between the seventh cover segment and the ninth cover segment;

the seventh cover segment is formed between the sixth fold and the seventh fold, and the seventh cover segment and the ninth cover segment are respectively located on opposite sides of the eighth cover segment;

At the left vertical side or/and the right vertical side, an unconnected fifth separation extending continuously upward from the fifth fold is formed between the sixth cover segment and the seventh cover segment Area.

At the left vertical side or/and the right vertical side, an unconnected third hood continuously extending downward from the fourth fold is formed between the third hood segment and the second hood segment separation zone.

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

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

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

At the left vertical side and the right vertical side, the first cover segment is thermocompression-fixed between the third hood segment and the fourth hood segment, and the second hood segment is thermocompression-fixed connected between the third cover segment and the fifth cover segment;

The left vertical side and the right vertical side are respectively provided with multiple rows of welding points spaced along the vertical direction, and at least one row of welding points adjacent to the first crease and above the first crease is not. Melt into the third hood segment.

The two rows of fusion points immediately adjacent to and above the first crease are not fused into the third cover segment.

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

The vertical width of the third hood segment is greater than the sum of the vertical width of the first hood segment and the vertical width of the second hood segment.

The difference between the width of the third hood segment in the vertical direction minus the width of the first hood segment in the vertical direction and the width of the second hood segment in the vertical direction is 1-3 mm.

The left vertical side and the right vertical side are respectively provided with straps fixed to the main body of the mask.

In order to solve the above-mentioned technical problems, the second solution proposed by this application is:

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

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

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

a fourth cover segment extending upwardly from the first crease, and

a fifth cover segment extending downwardly from the fourth crease;

The first hood segment and the second hood segment are respectively located on opposite sides of the third hood segment, and at the left vertical side or/and the right vertical side, the third hood segment is connected to the third hood segment. An unconnected separation area extending continuously downward from the fourth fold is formed between the second cover segments.

The second solution can also include one or more of the following preferred solutions:

The width of the separation area in the vertical direction is ≥2.5 mm.

The upper horizontal side is provided with an anti-fog strip or/and a nose clip, and the left vertical side and the right vertical side are respectively provided with straps fixed to the mask body.

Beneficial effects of this application:

1. The present application arranges the adjacent two pleats of the mask body on opposite sides of the pleated connecting section, and sets a continuous unconnected area—separation area between the pleated connecting section and the pleated main body part, so that the adjacent The folds have the freedom of translation in the left and right, up and down, and front and rear directions in the aforementioned non-connected area. The existence of this degree of freedom, combined with the arrangement of two adjacent folds on opposite sides of the fold connection section, makes the cross-lamination phenomenon of adjacent folds at the vertical edges when the mask is worn. This cross-lamination phenomenon makes the length of the vertical edge of the mask body in contact with the face shortened, the bulge phenomenon disappears, and it fits closely with the face, improving the airtightness of the mask when wearing it, enhancing the protective effect, and reducing the possibility of infection.

2. The above-mentioned non-connected area can be formed only by simply and ingeniously improving the traditional hot-pressing welding process originally used in the production of masks. The process is simple, feasible and easy to popularize.

3. The two adjacent folds on the mask body are separated by a certain distance, which further improves the face shape adaptability of the mask when wearing it.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limit the present application. .

Fig. 1 is the structural representation of a kind of traditional mask observed from the inside.

Fig. 2 is the traditional mouth mask of Fig. 1, the structural schematic diagram viewed from the outside.

Fig. 3 is a force analysis diagram of the traditional mask of Fig. 1 observed from the left during the wearing process.

Fig. 4 is a side view of the conventional mask of Fig. 1 in a wearing state, with its left vertical edge and the wearer's face being matched.

FIG. 5 is a side view of the conventional mask of FIG. 1 in a wearing state.

FIG. 6 is a schematic diagram of the airflow direction when the wearer inhales in FIG. 5 .

FIG. 7 is a schematic diagram of the airflow direction when the wearer exhales in FIG. 5 .

8 is a schematic structural diagram of the mask in Example 1 viewed from the inside.

9 is a schematic structural diagram of the mask in Example 1 viewed from the outside.

10 is a side view of the mask of Example 1, viewed from the left side; with the ear straps removed.

11 is a side view of the mask of Example 1, viewed from the right side; with the ear straps removed.

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

13 is a schematic side view of the left vertical edge of the mask body in the wearing state of the mask according to Embodiment 1.

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

FIG. 15 is an enlarged view of part X1 in FIG. 14 .

16 is a side view comparison view of two different deformation modes of the left vertical edge of the mask main body under the wearing state of the mask of Example 1.

Fig. 17 is a side view of the mask body of Example 1 viewed from the left side after unfolding.

18 is a side view after the welding point on the left vertical side of the mask body in the first embodiment is removed.

Figure 19 is a side view of the mask of Example 2, viewed from the left side; with the ear straps removed.

Figure 20 is a side view of the mask of Example 3, viewed from the left side; with the ear straps removed.

Figure 21 is a side view of the mask of Example 4, viewed from the left side; with the ear straps removed.

22 is a schematic side view of the left vertical edge of the mask main body when the mask of Embodiment 4 is worn.

23 is a side view after the welding point on the left vertical side of the mask body in the fourth embodiment is removed.

Figure 24 is a side view of the mask of Example 5, viewed from the left side; with the ear straps removed.

Figure 25 is a side view of the mask of Example 6, viewed from the left side; with the ear straps removed.

FIG. 26 is a side view after the welding point on the left vertical side of the mask body in the sixth embodiment is removed.

in:

1- mask body, 2- ear strap, 3- nose clip, 4- anti-fog strip, 5- face;

100 - pleats;

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

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

10-welding point;

11-First hood segment, 12-Second hood segment, 13-Third hood segment, 14-Fourth hood segment, 15-Fifth hood segment, 16-Sixth hood segment, 17-Seventh hood segment, 18 - the eighth hood segment, 19- the ninth hood segment;

1000 - the secondary overlapping area of adjacent folds;

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

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

W1-the width of the first hood segment, W2-the width of the second hood segment, W3-the width of the third hood segment, W5-the width of the fifth hood segment, and W6-the width of the sixth hood segment;

W11-the width of the first separation region, W12-the width of the second separation region, W13-the width of the third separation region, W14-the width of the fourth separation region, W15-the width of the fifth separation region, W16-the sixth separation the width of the zone;

Δ1 - the vertical distance between the fourth crease and the first crease when the mask is wearing; Δ2 - the vertical distance between the third crease and the sixth crease when the mask is wearing; Δ3 - the mask is not wearing In the state, the width of the third hood segment minus the difference between the width of the first hood segment and the width of the second hood segment; Δ4 - when the mask is not wearing, the width of the fifth hood segment minus the width of the second hood segment Difference in width from sixth hood segment; U-bump, D-void.

Detailed ways

In order to make the purposes, 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. Obviously, the described embodiments are some, but not all, embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. Words like "a" or "an" used in the description of the patent application and the claims of the present application do not indicate a quantitative limitation, but indicate that there is at least one.

In the description and claims of the present application, the serial numbers of the components themselves, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. And the "connection" and "connection" mentioned in this application, unless otherwise specified, include both direct and indirect connections (connections). The "plurality" mentioned in the application means not less than two.

Now, embodiments of the present application will be described with reference to the accompanying drawings.

Example 1:

Figures 8 to 18 show the first specific embodiment of the mask of the present application, which includes a mask body 1 and a strap connected to the mask body. The aforementioned straps are specifically ear straps 2. When in use, the wearer hangs the ear straps 2 on the ears, and the mask body 1 covers the mouth and nose to filter gas. Obviously, in some other embodiments of the present application, the straps may also be head straps attached to the wearer's head.

The mask main body 1 is generally rectangular, and it has: the inner surface 1E against the human face, the outer surface 1F away from the human face (towards the environment), and the left vertical edge 1a and the right vertical edge 1b on the lateral sides of the mask main body respectively , respectively located on the upper and lower horizontal sides 1c and 1d of the vertical sides of the mask body, as well as six horizontally extending creases. The aforementioned six folds are respectively 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, and each fold is from the mask body. The left vertical edge 1a of the mask body extends horizontally to the right vertical edge 1b of the mask body, that is, each crease runs through the entire mask body 1 horizontally. Moreover, the aforementioned six folds have such a 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 third fold The six folds 106 are distributed sequentially from top to bottom, as shown in FIG. 17 .

The above-mentioned six folds separate the mask body 1 into a plurality of vertical mask sections, as shown in Figure 10 and Figure 11, these mask sections are respectively: A cover segment 11, 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, from The fourth cover segment 14 extending upward from the first fold 101, and the fifth cover segment 15 formed between the fourth fold 104 and the fifth fold 105, formed between the fifth fold 105 and the sixth fold 106 The sixth cover segment 16 between them, and the seventh cover segment 17 extending downward from the sixth fold 106 .

The lengths of the aforementioned first cover segment 11, second cover segment 12, third cover segment 13, fourth cover segment 14, fifth cover segment 15, sixth cover segment 16 and seventh cover segment 17 in the lateral direction run through the mask body 1—The length of each mask segment extends horizontally from the left vertical side 1a of the mask body to the right vertical side 1b.

The fifth cover section 15 is formed between the fourth crease 104 and the fifth crease 105 , and the fifth crease 105 is located below the fourth crease 104 , so the fifth cover section 15 extends from the fourth crease 104 to the Extend down.

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

At the positions of the left vertical side 1a and the right vertical side 1b of the mask body 1, the first cover segment 11 is fixed between the third cover segment 13 and the fourth cover segment 14, and the second cover segment 12 is fixed to the third cover segment. 13 and the fifth hood segment 15 , the sixth hood segment 16 is fixedly connected between the fifth hood segment 15 and the seventh hood segment 17 . In this embodiment, the second cover section 12 is abutted against and fixed between the third cover section 13 and the fifth cover section 15 . In this embodiment, the first hood segment 11, the third hood segment 13, the fourth hood segment 14, the second hood segment 12, the third hood segment 13 and the fifth hood segment 15, the sixth hood segment 16 and the fifth hood Both the segment 15 and the seventh cover segment 17 are fixed by means of hot pressing, and of course, other methods such as stitching with woven thread and riveting can also be used.

It should be noted that the aforementioned "unfolding" (the unfolding in "when the mask body is unfolded") does not mean that the mask body is "unfolded" to fit the wearer's face when the mask is in normal use, that is, the "unfolding" mentioned in this application. "Different from the "open" in normal use shown in Figure 5, it refers to the mask body 1 being completely pulled apart in the up-down direction (vertical direction), so that the original heat-pressing and fixing of the left and right vertical sides The corresponding mask segments that are together are separated and unfolded from each other, as shown in Figure 17.

The position where the first cover section 11 is located, especially the overlapping position of the first cover section 11 and the third cover section 13 and the fourth cover section 14, constitutes a commonly known "fold" 100 of the mask body. The part where the second cover segment 12 is located, especially the overlapping part of the second cover segment 12 with the third cover segment 13 and the fifth cover segment 15, constitutes the second pleat 100 of the mask body. The sixth cover segment 16, especially the overlapping portion of the sixth cover segment 16 with the fifth cover segment 15 and the seventh cover segment 17, constitutes the third pleat 100 of the mask body. In this way, the mask body 1 has three pleats 100 in total. In this way, the mask body 1 is provided with three pleats 100 in total, and the three pleats 100 are sequentially distributed from top to bottom. The lengths of the aforementioned three folds 100 transversely run through the mask body 1 - from the left vertical side 1a of the mask body to the right vertical side 1b. Obviously, the third cover section 13 is the pleat connecting section connecting the uppermost pleat 100 and the second pleat 100, and the fifth cover section 15 is the pleating connecting section connecting the second pleat 100 and the third pleat 100.

The key improvement of this embodiment is that the first cover section 11 and the second cover section 12 are located on opposite sides of the third cover section 13 respectively. Specifically, the first cover segment 11 is located outside the third cover segment 13, that is, the side facing away from the wearer's face, and the second cover segment 12 is located inside the third cover segment 13, that is, the side facing the wearer's face. In addition, at the positions of the left vertical side 1a and the right vertical side 1b of the mask body 1, between the first cover segment 11 and the third cover segment 13, a disconnected first separation area extending continuously upward from the first crease 101 is formed. 1001. The aforementioned "disconnected" means that the first cover segment 11 and the third cover segment 13 are not connected to each other at the position of the first separation area 1001 . The aforementioned "continuous" means that the first separation zone is an uninterrupted whole-section structure.

In addition, 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 second cover segment 12 is located outside the fifth cover segment 15 , and the sixth cover segment 16 is located inside the fifth cover segment 15 . Moreover, a disconnected second separation area 1002 extending continuously upward from the third fold 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 on both sides of the mask body 1 approach each other due to the pulling force of the ear straps 2. The shape and position of the mask body 1 on the wearer's head are fixed only after the pulling force of the ear straps 2 on the mask body 1 is balanced with the reverse force of the wearer's face on the mask body 1, and the left vertical side 1a and the right The distance between the upper and lower ends of the vertical side 1b is usually shortened to a smaller equilibrium value. Because the third cover section 13 and the first cover section 11 are not fixedly connected in the area above the first crease 101 (ie, the first separation area 1001 ), the third cover section 13 in the first separation area 1001 can be freely deformed , will not be restricted by the pulling of the first cover segment 11 and the fourth cover segment 14 . Similarly, because the fifth cover section 15 and the second cover section 12 are not connected in the area above the third crease 103 (ie, the second separation area 1002 ), the fifth cover section 15 in the second separation area 1002 is also not connected. Can be freely deformed. In this way, when the tops and bottoms of the

vertical sides

1a and 1b of the mask body 1 are close to each other, the third cover section 13 of the first separation area 1001 and the fifth cover section 15 of the second separation area 1002 are subjected to vertical compression due to The bending deformation occurs due to the pressure, so that the fourth crease 104 moves above the first crease 101 (or the first crease moves below the fourth crease), and the sixth crease 106 moves above the third crease 103 . If the distance between the top and bottom of the

vertical sides

1a and 1b on both sides is small, only after the third cover section 13 of the first separation area 1001 and the fifth cover section 15 of the second separation area 1002 are substantially reversely straightened, The relative displacement between the fourth crease 104 and the first crease 101 , and the relative displacement between the sixth crease 106 and the third crease 103 will stop. At this time, the height difference Δ1 between the fourth crease 104 and the first crease 101 ≈W11, the height difference Δ2≈W12 from the sixth crease 106 to the third crease 103 . It is equivalent to twice the sum of W11 and W12 at the wrinkle position of the left vertical side 1a and right vertical side 1b of the mask. In this way, the large-scale displacement between two adjacent folds 100 is displaced and moved, so that the two folds 100 are also partially overlapped—the lower part of the upper fold 100 is stacked on the outer side of the upper part of the lower fold 100, thereby forming a phase as shown in FIG. 15 . The secondary overlapping area 1000 of the adjacent folds. In this way, the big bulge U shown in Figure 4 and Figure 5 no longer appears in the middle of the vertical sides of the mask, between the left vertical side 1a and the face 5, between the right vertical side 1b and the face 5, such as The large gap D shown in Figure 4 and Figure 5, the vertical sides on both sides fit well with the face.

It is not difficult for those skilled in the art to understand that if only the first separation area 1001 is provided on the mask body, even if the above-mentioned second separation area 1002 is not provided, only the bending deformation of the third cover section 13 can reduce or even eliminate the bulge U. and the effect of void D.

After a lot of tests, we found that if the above-mentioned values of W11 and W12 can reach 2.5mm, the bulge U and the gap D can be significantly reduced when wearing. When W11 and W12 reach 3mm, the effect is better. W11 and W12 should not be too large. Generally, the values of W11 and W12 are preferably in the range of 2.5 to 6 mm, and more preferably in the range of 3 to 6 mm. Of course, this is not necessary.

As mentioned above, at the positions of the left vertical side 1a and the right vertical side 1b of the mask main body 1, the first cover segment 11 is fixed between the third cover segment 13 and the fourth cover segment 14 using a known hot pressing process, The second hood segment 12 is fixed between the third hood segment 13 and the fifth hood segment 15 by a known hot pressing process, and the sixth hood segment 16 is fixed between the fifth hood segment 15 and the fifth hood segment 15 by a known hot pressing process. Between the seventh hood segment 17 . As shown in FIG. 10 and FIG. 11 , the aforementioned “fixing by hot pressing” will form multiple rows of welding points 10 equidistantly arranged in the vertical direction on the left vertical side 1a and the right vertical side 1b respectively—that is, the rows and the rows They are arranged at equal distances, four in each row, the distance between the two connected rows of welding points is T≈1mm, and the height of a single welding point 10 is H≈1.5-2mm. The mask sections at the pleats 100 are fastened together by the aforementioned welding points 10 .

If the above-mentioned rows of welding points 10 are still set in the traditional way—that is, each welding point 10 is fixedly connected to each mask section at its location, it is obviously impossible to form the above-mentioned first separation area 1001 and second separation area 1002. In this embodiment, by improving the traditional hot pressure welding process, the above-mentioned first separation area 1001 and second separation area 1002 are skillfully formed at the positions of the left vertical side 1a and the right vertical side 1b of the mask body 1:

10 and 11 again, the two rows of welding points 10 immediately adjacent to the first crease 101 and above the first crease 101 are only fused into the fourth hood segment 14 and the first hood segment 11, but not into the first hood segment 11. Three hood segments 13 . Therefore, the two rows of welding points 10 only fasten the fourth hood segment 14 and the first hood segment 11 , but do not connect the third hood segment 13 with the first hood segment 11 , and then the third hood segment 13 and the first hood segment 11 are not connected. The above-mentioned first separation area 1001 is formed between the hood segments 11 .

The so-called "nearest" means "closest".

Likewise, the other two rows of welding points 10 immediately adjacent to and above the third fold 103 are only fused into the third hood segment 13 and the second hood segment 12 , but not into the fifth hood segment 15 . As a result, the two rows of welding points 10 only connect the third hood segment 13 and the second hood segment 12, but do not connect the fifth hood segment 15 with the second hood segment 12, and further connect the fifth hood segment 15 with the second hood segment 12. The aforementioned second separation area 1002 is formed between the hood segments 12 .

In some other embodiments of the present application, only one row of welding points 10 adjacent to the first crease 101 and above the first crease 101 may not be fused into the third cover segment, or the first crease 101 may be closed And the welding points 10 of three rows, four rows, five rows or even more rows above the first crease 101 are not fused into the third cover section 13, so as to reduce or increase the width of the first separation area 1001 W11. Obviously, the width W12 of the second separation region 1002 can also be decreased or increased by a similar method.

An anti-fog strip 4 and a nose clip 5 are arranged at the upper horizontal edge 1c. The anti-fog strip 4 is a sponge with a certain thickness, and is fixed to the inner side of the mask body 1 . The nose clip 5 is a horizontally extending aluminum strip, which is hidden and fixed inside the mask body 1 . The anti-fog strip 4 is used in conjunction with the nose clip 5 to fill the gap between the inner surface of the mask body and the bridge of the nose, so that the mask body 1 fits the contour of the nose better. There is no pressure on the bridge of the nose when wearing it, and the airflow will not overflow from the upper edge when breathing and talking.

Embodiment 2:

Figure 19 shows the second specific embodiment of the mask of the present application, which has basically the same structure as the first embodiment above, except that:

In this embodiment, at the left vertical side 1a and the right vertical side 1b, between the second cover segment 12 and the third cover segment 13 is formed a third unconnected separation area extending continuously downward from the fourth crease 104 1003 , a fourth unconnected separation area 1004 extending continuously downward from the sixth fold line 106 is formed between the fifth cover section 15 and the sixth cover section 16 .

That is to say, in this embodiment, not only a disconnected separation area is formed between the third hood segment 13 and the first hood segment 11 , but also a disconnected area is formed between the third hood segment 13 and the second hood segment 12 below the first hood segment. Connected separation area. The fifth hood segment 15 not only forms a disconnected separation area with the second hood segment 12, but also forms a disconnected separation area with the sixth hood segment 16 below the second hood segment. The advantages of this setting are:

Assuming that the widths of the first separation area 1001 and the second separation area 1002 in this embodiment are respectively equal to the widths of the first separation area 1001 and the second separation area 1002 in the first embodiment, then when the mask of this embodiment is in the wearing state, its The third cover section 13 and the fifth cover section 15 at the positions of the

vertical sides

1a and 1b on both sides can produce larger deformation, even if the upper and lower ends of the left vertical side 1a and the right vertical side are closer together, it will not occur. The ridges U and the voids D shown in FIGS. 4 and 5 .

Specifically, the deformable width of the third cover segment 13 is increased from W11 in the first embodiment to W11+W13, and the deformable width of the fifth cover segment 15 is increased from W12 in the first embodiment to W12+W14.

The formation method of the first separation region 1001 and the second separation region 1002 is the same as that of the first embodiment, and is not repeated here. The third separation area 1003 and the fourth separation area 1004 are also formed by a similar method: as shown in FIG. 19 , a row of welding points 10 adjacent to the fourth crease 104 and below the fourth crease 104 is only fused into the fifth The hood segment 15 and the second hood segment 12 are not melted into the third hood segment 13 . The two rows of weld points 10 immediately adjacent to and below the sixth fold 106 are only fused into the seventh hood segment 17 and the sixth hood segment 16 , but not into the fifth hood segment 15 .

It is not difficult to understand that, based on the above structural design, there is such a mathematical relationship: W11+W13=4H+3T, W12+W14=3H+2T. Among them, H is the height of a single welding point, and T is the distance between two adjacent rows of welding points.

Generally, T≈1mm, and the height of a single fusion point is H≈1.5-2mm.

If W11+W13 can reach more than 3.5mm, the elimination of the bulge U and the gap D will be more obvious. W11+W13 should not be too large. Generally, W11+W12 is preferably in the range of 3.5-11 mm, and more preferably 5-9 mm. Of course, this is not necessary.

Embodiment three:

Figure 20 shows the third specific embodiment of the mask of the present application, which has basically the same structure as the first embodiment, the only difference being that the first cover segment 11 is located inside the third cover segment 13, the second The cover segment 12 is located outside the third cover segment 13 and the inside of the fifth cover segment 15 , and the sixth cover segment 16 is located outside the fifth cover segment 15 .

Embodiment 4:

Figures 21 to 23 show the fourth specific embodiment of the mask of the present application. The mask body 1 of the mask is provided with a total of eight creases, which are the first creases distributed in sequence from top to bottom after the mask body 1 is unfolded. A crease 101 , a second crease 102 , a third crease 103 , a fourth crease 104 , a fifth crease 105 , a sixth crease 106 , a seventh crease 107 and an eighth crease 108 .

The above-mentioned eight folds separate the mask main body 1 into a plurality of vertical mask sections, and these mask sections are respectively: the first cover section 11 formed between the first fold 101 and the second fold 102, formed in the third The second cover section 12 between the fold 103 and the fourth fold 104, the third cover section 13 formed between the second fold 104 and the third fold 103, the first cover section 13 extending upward from the first fold 101 Four cover segments 14, fifth cover segment 15 formed between fourth fold 104 and fifth fold 105, sixth cover segment 16 formed between fifth fold 105 and sixth fold 106, forming The seventh cover segment 17 between the sixth fold 106 and the seventh fold 107, and the sixth cover segment 19 formed between the seventh fold 107 and the eighth fold 108, from the eighth fold 108 to the the lower extended ninth cover segment 19,

Obviously, the same as in the first embodiment, the fifth cover section 15 also extends downward from the fourth crease 104 , and the seventh cover section 17 also extends downward from the sixth crease 106 . This does not contradict the aforementioned "the fifth cover segment 15 is formed between the fourth crease 104 and the fifth crease 105, and the seventh cover segment 17 is formed between the sixth crease 106 and the seventh crease 107" .

At the positions of the left vertical side 1a and the right vertical side of the mask body 1, the first cover segment 11 is heat-pressed and fixed between the third cover segment 13 and the fourth cover segment 14, and the second cover segment 12 is heat-pressed and fixed to the third cover segment 13 and the fourth cover segment 14. Between the third hood segment 13 and the fifth hood segment 15, the sixth hood segment 16 is thermocompression-fixed between the fifth hood segment 15 and the seventh hood segment 17, and the eighth hood segment 18 is thermocompression-fixed to the seventh hood Between segment 17 and ninth shroud segment 19 .

The position where the first cover segment 11 is located forms the uppermost first pleat 100 of the mask body. The part where the second cover segment 12 is located forms the second pleat 100 of the mask body. The part where the sixth cover segment 16 is located forms the third pleat 100 of the mask body, and the part where the eighth cover segment 18 is located forms the fourth pleat 100 at the bottom of the mask body. The mask body 1 has the aforementioned four pleats 100 in total.

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

In the present embodiment, at the left vertical side 1a and the right vertical side of the mask body 1, a disconnected first cover section 11 and the third cover section 13 are formed between the first cover section 11 and the third cover section 13 extending continuously upward from the first crease 101 In the separation area 1003 , an unconnected fifth separation area 1005 extending continuously upward from the fifth fold line 105 is formed between the seventh cover section 17 and the sixth cover section 16 .

In the wearing state of the mask, the shape of the left vertical side of the mask body is generally as shown in Figure 22, which can fit well with the wearer's face.

Embodiment 5:

Figure 24 shows the fifth specific embodiment of the mask of the present application. The structure of the mask is basically the same as that of the fourth embodiment. The difference is that an eighth crease is formed between the seventh cover section 17 and the eighth cover section 18. 108 Continuous downwardly extending unconnected sixth separation region 1006.

According to the above description, it is not difficult for those skilled in the art to understand that in the above-mentioned Embodiments 1 to 5, each of the embodiments can only retain any one of the separation areas, and when wearing, you can still use the only remaining separation area. The bending deformation improves the bulge U and the gap D at the vertical edge position.

Embodiment 6:

It can be seen from the above that, compared with the first embodiment, the second embodiment improves the deformable width of the third cover segment and the fifth cover segment by increasing the number of separation zones, thereby making the mask in the wearing state, even if the two ends of the vertical edge are The closer Embodiment 1 is closer, and the bulges and voids can also be eliminated better. However, after all, the vertical width of each separation area is limited, and it is also mentioned above that the width of the separation area should not be too large. As the ends come closer together, bumps and voids of a certain size may still be formed. In view of this, FIG. 25 and FIG. 26 show the sixth specific embodiment of the mask of the present application, so as to further increase the deformable width of the third cover section and the fifth cover section.

In the sixth embodiment, the width W3 of the third hood segment 13 in the vertical direction is larger than the sum of the width W1 of the first hood segment 11 in the vertical direction and the width W2 of the second hood segment 12 in the vertical direction. The width W5 of the hood section 15 in the vertical direction is larger than the sum of the width W2 of the second hood section 12 in the vertical direction and the width W6 of the sixth hood section 16 in the vertical direction. That is, W3-(W1+W2)=Δ3>0, W5-(W2+W6)=Δ4>0.

In this way, the deformable width of the third cover segment 13 in this embodiment is increased from W11+W13 in the second embodiment to W11+W13+Δ3, and the deformable width of the fifth cover segment 15 is increased from W12+W14 in 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 this embodiment are further close when worn, it can still fit well with the face.

The values of Δ3 and Δ4 should not be too small or too large, preferably 1-3 mm.

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

Those skilled in the art can obviously know from the above description: if a separation area is only provided on one of the left vertical side and the right vertical side, the vertical side (left vertical side or right vertical side) on which the separation area is provided can be made ) to better fit the wearer's face.

The above are only exemplary implementations of the present application, and are not intended to limit the protection scope of the present application, which is determined by the appended claims.

Claims

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

The left vertical side (1a) and the right vertical side (1b) on both sides of the mask body are respectively located,

They are respectively located on the upper horizontal edge (1c) and the lower horizontal edge (1d) on both vertical sides of the mask body,

Horizontally running through the main body of the mask, and distributed sequentially from top to bottom after the main body of the mask is unfolded: the first crease (101), the second crease (102), the third crease (103) and the fourth crease ( 104),

a first cover segment (11) formed between said first fold and said second fold,

a second cover segment (12) formed between said third fold and said fourth fold,

a third cover segment (13) formed between said second fold and said third fold,

a fourth cover segment (14) extending upwardly from said first crease, and

a fifth cover segment (15) extending downwardly from said fourth crease;

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

It is characterized in that the first cover section (11) and the second cover section (12) are respectively located on opposite sides of the third cover section (13), on the left vertical side (1a) or/or and the right vertical edge (1b), a disconnection extending continuously upward from the first crease (101) is formed between the first cover segment (11) and the third cover segment (13) The first separation zone (1001).
The mask according to claim 1, characterized in that, the width (W11) of the first separation zone (1001) in the vertical direction is ≥2.5 mm.
The mask according to claim 2, characterized in that, the width (W11) of the first separation zone (1001) in the vertical direction is 2.5-6 mm.
mouth mask according to claim 1, is characterized in that, described mouth mask main body (1) also comprises:

A fifth crease (105) running through the mask body horizontally and below the fourth crease after the mask body is unfolded,

The sixth crease (106) running through the mask body laterally and under the fifth crease after the mask body is unfolded,

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

a seventh cover segment (17) extending downwardly from the sixth crease;

The fifth cover segment (15) is formed between the fourth fold (104) and the fifth fold (105), between the left vertical side (1a) and the right vertical side (1b) ), the sixth hood segment (16) is fixedly connected between the fifth hood segment (15) and the seventh hood segment (17).
The mask according to claim 4, characterized in that, the second cover section (12) and the sixth cover section (16) are located on opposite sides of the fifth cover section (15), respectively, at the At the left vertical side (1a) or/and the right vertical side (1b), the third fold is formed between the second cover segment (12) and the fifth cover segment (15) (103) A continuous upwardly extending unconnected second separation zone (1002).
The mask according to claim 5, characterized in that, at the left vertical side (1a) or/and the right vertical side (1b), the sixth cover segment (16) and the fifth cover A fourth unconnected separation zone (1004) extending continuously downward from the sixth crease (106) is formed between the segments (15).
The mask according to claim 6, wherein the width (W12) of the second separation area (1002) in the vertical direction is the same as the width (W14) of the fourth separation area (1004) in the vertical direction. The sum is not less than 3.5mm.
The mask according to claim 4, characterized in that the second cover segment (12) and the sixth cover segment (16) are located on the same side of the fifth cover segment (15), and the mask body (1) Also includes:

The seventh crease (107) running through the mask body horizontally and under the sixth crease after the mask body is unfolded,

The eighth crease (108) running through the mask body horizontally and under the seventh crease after the mask body is unfolded,

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

a ninth cover segment (19) extending downwardly from the eighth crease;

At the left vertical side (1a) and the right vertical side (1b), the eighth cover segment (18) is fixed to the seventh cover segment (17) and the ninth cover segment (19) )between;

The seventh hood segment (17) is formed between the sixth fold (106) and the seventh fold (107), the seventh hood segment (17) and the ninth hood segment ( 19) are respectively located on opposite sides of the eighth cover segment (18);

At the left vertical side (1a) or/and the right vertical side (1b), the fifth cover section (16) and the seventh cover section (17) are formed with the fifth cover section (17). The crease (105) is a continuous upwardly extending unconnected fifth separation zone (1005).
The mask according to claim 1, characterized in that, at the left vertical side (1a) or/and the right vertical side (1b), the third cover segment (13) and the second cover Between the segments (12) are formed unconnected third separation regions (1003) extending continuously downward from the fourth folds (104).
The mask according to claim 9, characterized in that the width (W11) of the first separation area (1001) in the vertical direction is the same as the width (W13) of the third separation area (1003) in the vertical direction. The sum is not less than 3.5mm.
The mask according to claim 10, characterized in that, the width (W11) of the first separation area (1001) in the vertical direction and the width (W13) of the third separation area (1003) in the vertical direction The sum is 3.5-11mm.
The mask according to claim 11, wherein the width (W11) of the first separation area (1001) in the vertical direction and the width (W13) of the third separation area (1003) in the vertical direction The sum is 5-9mm.
The mask according to claim 1, characterized in that, at the left vertical side (1a) and the right vertical side (1b), the first cover section (11) is heat-pressed and fixed to the first cover section (11). Between the third hood segment (13) and the fourth hood segment (14), the second hood segment (12) is fixed to the third hood segment (13) and the fifth hood segment ( 15) between;

The left vertical side (1a) and the right vertical side (1b) are respectively provided with a plurality of rows of welding points (10) spaced along the vertical direction, adjacent to the first crease (101) and located at the At least one row of the welding points (10) above the first crease (101) is not fused into the third cover segment (13).
The mask according to claim 13, characterized in that the two rows of welding points (10) adjacent to the first crease (101) and above the first crease (101) are not fused into the first crease (101). Three hood segments (13).
The mask according to claim 1, characterized in that, an anti-fog strip (4) or/and a nose clip (5) is provided at the upper horizontal edge (1c), and the left vertical edge (1a) and the The right vertical side (1b) is respectively provided with a strap fixed to the mask body (1).
The mask according to claim 1, wherein the width (W3) of the third cover section (13) in the vertical direction is greater than the width (W1) of the first cover section (11) in the vertical direction The sum of the width (W2) in the vertical direction and the second cover segment (12) is large.
The mask according to claim 16, wherein the width (W3) of the third cover section (13) in the vertical direction minus the width (W1) of the first cover section (11) in the vertical direction ) and the width (W2) of the second hood section (12) in the vertical direction is 1-3 mm.
A mask, comprising a mask main body (1) covering the mouth and nose, the mask main body (1) comprising:

The left vertical side (1a) and the right vertical side (1b) on both sides of the mask body are respectively located,

They are respectively located on the upper horizontal edge (1c) and the lower horizontal edge (1d) on both vertical sides of the mask body,

Horizontally running through the main body of the mask, and distributed sequentially from top to bottom after the main body of the mask is unfolded: the first crease (101), the second crease (102), the third crease (103) and the fourth crease ( 104),

a first cover segment (11) formed between said first fold and said second fold,

a second cover segment (12) formed between said third fold and said fourth fold,

a third cover segment (13) formed between said second fold and said third fold,

a fourth cover segment (14) extending upwardly from the first crease, and

a fifth cover segment (15) extending downwardly from said fourth crease;

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

It is characterized in that the first cover section (11) and the second cover section (12) are respectively located on opposite sides of the third cover section (13), on the left vertical side (1a) or/or and the right vertical edge (1b), a non-stop extending continuously downward from the fourth crease (104) is formed between the third cover segment (13) and the second cover segment (12). Connected separation area.
The mask according to claim 18, wherein the width of the separation zone in the vertical direction is ≥2.5 mm.
The mask according to claim 18, characterized in that, an anti-fog strip (4) or/and a nose clip (5) is provided at the upper horizontal edge (1c), and the left vertical edge (1a) and the The right vertical side (1b) is respectively provided with a strap fixed to the mask body (1).