TW202106348A - Mask - Google Patents

Abstract

The present invention provides a mask that is not bulky when packaged, enhances the fitness for face when worn, and can be easily manufactured. A mask l of the present invention includes a filter portion 2 made of a breathable sheet material and formed with at least one laterally extending folds which expand longitudinally so as to cover at least nose and mouth when worn; a face-contacting body 3 formed by an elastically deformable plate material into an annular shape, the peripheral edge of which is joined to the filter portion 2, so as to contact the face and form openings at positions corresponding at least to the nose and the mouth when worn; and straps 4 hung on either head or ears to wear the filter portion and the face-contacting body over the face. The mask is configured such that the face-contacting body 3 deforms elastically either upward or downward when the filter portion 2 expands longitudinally, and the face-contacting body 3 is able to deform elastically in a lateral direction so as to closely fit the shape of the face.

Description

Face mask

The present invention relates to a mask suitable for use as a dust mask, a medical mask, etc., for example.

Conventionally, such masks are known as those described in Patent Documents 1 to 3. The mask described in Patent Document 1 is one in which a plastic shape retaining device having a three-dimensional shape along the face is inserted between the peripheral portion of the mask body and the joint portion of the outer peripheral portion of the face cloth.

The mask described in Patent Document 2 has a ring-shaped face pad and a filter part joined to the outer periphery of the face pad and bulged into a mountain shape. The filter part is formed with pleats, which are folded by folding The pleated sheet becomes a flat state.

The mask described in Patent Document 3 has an interface pad attached to the side of the mask body that abuts against the target portion including the nose and mouth.

(Prior technical literature)

(Patent Document)

Patent Document 1: Japanese Utility Model Registration No. 3117121

Patent Document 2: Japanese Patent Application Publication No. 2006-149739

Patent Document 3: Japanese Patent Application Laid-Open No. 2008-302144

The mask described in Patent Document 1 mentioned above has a plastic shape retaining device with a three-dimensional shape along the face inserted between the peripheral part of the mask body and the outer peripheral part of the face cloth, so that the face can be improved when being worn. The adhesion to the face cloth, but there are problems of high unit price, larger volume after packaging, and more space during transportation and storage.

Furthermore, since the mask described in Patent Document 2 becomes a flat state by folding the pleats of the filter material portion bulging into a mountain shape, it is necessary to perform a step of folding the filter material portion, and there is a problem of increased cost.

Furthermore, the mask described in Patent Document 3 is formed by connecting the upper and lower interface pads with the interface gasket by the connecting part, and the above-mentioned connecting part is welded in a state where the ends of the upper and lower mouth gaskets are partially overlapped with each other. Or it can be attached by crimping it to the central part of the mask body, etc., which has the problem of time-consuming and labor-intensive manufacturing and high unit price.

In addition, general pleated masks (surgical masks) are inexpensive and will not cause problems during transportation or storage, but they have poor adhesion to the face. Even if high-performance filter materials are used, there will be a large amount of leakage due to the gap between the face and the mask. , So there is a problem that the mask cannot function.

The present invention was developed in view of the above-mentioned problems. The subject of the present invention is to provide a mask that is not too bulky after packaging, can further improve the adhesion to the face when worn, and can be easily manufactured.

Furthermore, in terms of other issues, a mask is provided that can push and expand the filter part three-dimensionally and maintain its state.

In order to achieve the problem, the mask of the present invention is provided with: a filter part, which is composed of a breathable sheet material and is formed with at least one pleat extending laterally. When worn, the pleats extend longitudinally to cover at least the nose and Mouth; face body, is formed into a ring with an elastically deformable plate, and the circumferential edge of the ring is joined to the aforementioned filter part, and when it is worn, it is in contact with the face and at least with the aforementioned nose and the aforementioned An opening is formed at the position corresponding to the mouth; and a strap, which is hung around the head or ears, and the filter material part and the face-receiving body are worn on the face; and the filter material part is configured to When it expands vertically, the face-receiving body is elastically deformed up and down, and the left-right elasticity of the face-receiving body is elastically deformed to closely adhere to the shape of the face.

In a preferred embodiment of the present invention, the face-receiving system is provided with a hooking portion that is hooked on at least a part of the face when the ring-shaped portion is worn, and a portion facing the opening is formed near the hooking portion. Extend the protruding piece. The hanging portion is provided on the lower edge side of the annular portion, and the protruding pieces are formed to extend toward the opening on both sides of the hanging portion, and the hanging portion hangs on the jaw when being worn. unit.

In a preferred embodiment of the present invention, the protruding pieces are a pair of lower protruding pieces formed symmetrically on the lower side of the annular portion with respect to the center line extending in the vertical direction, and the lower protruding pieces are It is formed so that the space becomes narrower as it goes upward.

In a preferred embodiment of the present invention, the face receiving system is formed with a tongue-like piece on the upper edge portion side of the annular portion that protrudes into the opening portion, and is configured such that the upper portion protrudes when worn The sheet is closely attached to at least a part of the aforementioned nose.

In a preferred embodiment of the present invention, the upper protruding pieces are formed in a pair symmetrically with respect to the center line extending in the vertical direction, and the upper protruding pieces are formed to follow the shape of the nose, and the more downward The wider the interval.

In a preferred embodiment of the present invention, the filter material portion is formed in a polygonal shape, each end of the lanyard is respectively joined to two upper corners of its upper part, and each other end of the lanyard is respectively joined to the upper and lower parts of the filter material. The side of the direction roughly 1/4 of the height.

In the mask of the present invention, when the filter part is expanded longitudinally, the face-receiving body is elastically deformed up and down, and the left and right sides of the face-receiving body are elastically deformed and closely adhered along the shape of the face, so that the wearing time can be further improved The closeness to the face. As a result, with respect to the face, the gap disappears, and the leakage of dust and the like can be prevented.

Furthermore, the mask of the present invention is formed with at least one pleated sheet extending laterally on the filter material portion, and the pleated sheet is folded into a flat state when bagging, so the volume after packaging is not too large, so it is extremely easy to transport and store. Furthermore, the mask of the present invention is composed of a filter part, a face-receiving body and a strap, so it is possible to provide a mask with a small number of parts, easy manufacture, and good economy.

In addition, in the mask of the present invention, since the lower side of the face body is provided with a hooking part that is hooked on at least a part of the face when it is worn, the lower side of the face can be hooked reliably and easily. . In addition, when wearing, the hanging part is hung on the jaw and is tilted toward the front of the face to elastically deform. The filter material part is pushed and expanded three-dimensionally by the protruding piece, so the filter material part will not easily return to its original shape. Flat state, and can maintain a three-dimensional pressing and expanding state for a long time.

Furthermore, in the mask of the present invention, since the pair of lower protruding pieces are formed so that the distance becomes narrower as they go upward, and the vicinity of the central part of the filter material part is pressed, the vicinity of the central part can be used as the top part to be pressed and expanded into The shape of the mountain can secure the space.

Furthermore, in the mask of the present invention, a tongue piece is formed on the upper side of the face body to project an upper protruding piece into the opening. When being worn, the upper protruding piece is in close contact with at least a part of the nose. Ensure the tightness around the nose.

Furthermore, in the mask of the present invention, since the pair of upper protruding pieces are formed along the shape of the nose, the distance is wider as you go downwards. Therefore, the adhesion around the nose can be better, and the filter part protrudes from the upper part. The sheet pushes and pushes and expands three-dimensionally, and the space part can be secured.

Furthermore, in the mask of the present invention, each end of the strap is joined to the two corners of the upper part of the polygon, and each other end is joined to the side of the filter material part approximately 1/4 of the height in the upper and lower direction, so that the filter material part can be easily The ground extends longitudinally, and the filter material part hung on the jaw is pulled by the strap, thus preventing the filter material part under the jaw from being rolled up.

1, 1A, 1B: mask

2: Filter Department

2a: Water absorption filter material

2b: Front filter

2c: Main filter material

2d: Water absorption filter material

3: face body

4: Lanyard

4a: one end

4b: the other end

5: Upper side

6: Bottom

7a: straight side

7b: Inclined side

8: Central filter

9: Upper filter material

9a: Upper fold

10: Filter material below

10a: Lower fold

11: The upper mountain folding part

12: The upper valley fold

13: Lower mountain folding part

14: Lower valley break

15: Fold in the upper part

16: Fold-in part below

17: nose bridge

20: Ring part

20a: Peripheral part

21: Opening

22: Bottom

23: set hanging part

24: Lower protruding piece

25: Upper side

26: upper protruding piece

27: Trapezoidal opening

28: Inverted V-shaped opening

29: arc-shaped protrusion

29a: Inverted V-shaped opening

30: side

31: Curved opening

31a: Bend

Fig. 1 is a back view of the mask according to the first embodiment of the present invention.

Fig. 2 is a front view showing the mask of the first embodiment.

Fig. 3 is a cross-sectional view showing III-III of Fig. 1.

Fig. 4 is an enlarged cross-sectional view showing part A of Fig. 3.

Fig. 5 is a schematic cross-sectional view showing the state of the filter material portion and the face-receiving body when the mask of the first embodiment is worn.

Fig. 6 is a side view showing a state where the wearer puts on the mask of the first embodiment.

Fig. 7 is a back view showing a mask according to the second embodiment of the present invention.

Fig. 8 is a back view showing a mask according to a third embodiment of the present invention.

Fig. 9 is an explanatory diagram showing a specific embodiment of the mask of the present invention.

Hereinafter, the mask of the first embodiment of the present invention will be described with reference to Figs. 1 to 6.

(First Embodiment)

As shown in Figures 1 and 2, the mask 1 of this embodiment is equipped with: a filter part 2, which is composed of a breathable sheet; a face-receiving body 3, which abuts on the face of the wearer; and a pair of left and right The straps 4 are respectively put on the left and right ears of the wearer.

The filter material portion 2 is formed into a substantially heptagonal shape as shown in FIG. 2 and has: two upper side portions 5 gently inclined in the left and right directions; a linear lower side portion 6 facing the upper side portions 5; Each upper side portion 5 linearly extends downward to linear side portions 7a approximately 1/4 of the height in the vertical direction, and inclined side portions 7b inclined inwardly in the left-right direction from the linear side portions 7a.

As shown in FIG. 2, the filter material portion 2 includes: a central filter material 8 formed in the center of the vertical direction; and an upper filter material 9 and a lower filter material 10 respectively formed above and below the central filter material 8. As shown in Figure 3, in the upper filter material 9, two upper mountain folds 11 and upper valley folds 12 extending in the horizontal (left and right) direction are formed in the vertical direction, and the lower filter material 10 is similarly formed in the vertical direction. (Left and right) Two lower mountain folds 13 and lower valley folds 14 extending in the direction.

The filter material part 2 is shown in FIG. 3, the central filter material 8 and the upper filter material 9 are connected by two upper folds 15 extending between the two upper mountain folds 11 and the upper valley folds 12, forming two upper folds 9a. Furthermore, the central filter medium 8 and the lower filter medium 10 are connected via two lower folds 16 extending between the two lower mountain folds 13 and the lower valley folds 14 to form two lower pleats 10a.

The filter part 2 is shown in Figure 4, for example, four layers are stacked, from the outside to the inside, in order: the water absorption filter material 2a that absorbs moisture and is used to modify the appearance, the fiber diameter is the filter material 2b before the coarse dust is filtered, and the fiber diameter is the filter The main filter material 2c for fine dust, and the water-absorbing filter material 2d, which is mainly used to absorb the exhaled moisture of the wearer. In addition, the filter material portion 2 may have a three-layer structure in which the filter material 2b before the coarse fiber diameter is omitted. In such a three-layer structure, the water-absorbing filter material 2a has the above-mentioned functions, and also has the function as a filter material before filtering large dust. In addition, if the material of the filter part 2 is soft and bendable and can introduce and expel the wearer's inhalation and expel the breath and function as a filter part that can filter the inhalation and exhalation, there is no particular limitation.

As shown in FIG. 2, the filter part 2 is surrounded by the upper side part 5 and encloses the nose bridge 17 symmetrically with respect to the center line extending in the up and down direction. The nose bridge 17 is made of, for example, stretched polyethylene, which is twisted along the transverse shape of the nose to make the filter part 2 closely adhere to the nose. The nose bridge 17 is located at the approximate center of the face body 3 in the left-right direction and is located between the virtual horizontal line (shown by the two-dot chain line) connecting the upper ends of the two sides of the face body 3 and the upper end of the face body 3. The middle part of the top of the mountain-shaped part is arranged symmetrically with the longitudinal direction along the left-right direction of the mask 1. In addition, the nose bridge 17 is not limited to the above-mentioned position as long as it can perform its function appropriately.

The face-receiving body 3 is shown in FIG. 1 and is formed of a flat plate that can be elastically deformed by punching. The face body 3 is, for example, a foamed polyethylene sheet, a foamed polyvinyl alcohol sheet, etc., which is attached with non-woven fabric or pulp to an air-impermeable foamed resin material. The face receiving body 3 is provided with a ring portion 20 formed in a ring shape. The annular portion 20 is joined to the peripheral edge portion of the filter material portion 2 by a fixing means such as welding and bonding. That is, only the peripheral edge portion 20a of the annular portion 20 and the peripheral edge portion of the filter material portion 2 are joined to the face-receiving body 3, and the other parts are not joined but only overlap, and thus can be separated from the filter material portion 2. Therefore, the face-receiving body 3 can easily move up and down And elastic deformation in the left and right directions. The peripheral edge portion 20a of the face body 3 is joined with the filter material portion 2 overlapping the upper mountain fold 11 and the upper valley fold part 12, and the lower mountain fold 13 and the lower valley fold 14 of the upper and lower folds in an overlapping state. . The face-receiving body 3 is in contact with the face of the wearer when it is worn, and an opening 21 is formed at a position corresponding to the nose, mouth, and surrounding parts. Thereby, the nose and mouth of the wearer can be inserted into the opening 21.

The annular portion 20 of the face receiving body 3 is integrally formed with an upper side portion 25, side portions 30 continuous from the upper side portion 25 to the left and right, and a lower side portion 22 continuous from these side portions 30. The upper side portion 25 has a predetermined width in the up and down direction. At this time, if the width of the upper side portion 25 of the face-receiving body 3 is short, the upper side portion 25 is likely to rise when being worn, and a gap with the outside is likely to occur. In this embodiment, since the upper side portion 25 has a predetermined width in the upper and lower direction, the contact area with the nose portion becomes larger, and the friction force increases, and the mask can not easily deviate when being worn.

The face-receiving body 3 is provided with a hooking portion 23 on the side 22 of the lower side of the ring portion 20. The hooking portion 23 is hooked on at least a part of the jaw of the face when it is worn. Therefore, in the face-receiving body 3, the lower side portion 22 is hooked on the jaw by the hooking portion 23. On the other hand, since the two upper protruding pieces 26 described later are provided on the upper side portion 25 in close contact with both sides of the nose portion, and the upper side portion 25 is side-hung there, the filter material portion 2 can be covered by both the jaw portion and the nose portion. Hang it up and down and keep its three-dimensional shape. In addition, as described above, the nose bridge 17 is bent along the transverse shape of the nose, and when the filter material portion 2 is closely attached to the nose, the upper edge portion 25 side will be more firmly hung on the nose, and the filter material portion 2 can be Both the jaw and the nose are surely maintained up and down, maintaining their three-dimensional shape for a long time.

A lower protruding piece 24 extending toward the opening 21 is formed on both sides of the hanging portion 23 respectively. These lower protruding pieces 24 form a pair symmetrically with respect to the center line extending in the upper and lower direction of the face body 3, and are inclined so that the distance between each other becomes narrower as it goes upward. The lower protruding piece 24 sets the front end It is formed in an angular shape, and is formed in a tongue-like shape to protrude into the opening 21. The lower protruding pieces 24 are respectively formed with approximately the same width to the front end, and the front ends are respectively extended to the central filter medium 8 formed in the center of the filter material portion 2 in the up-down direction. That is, the lower protruding piece 24 extends so as to have the same height with respect to the upper and lower directions of the filter material portion 2. The lower protruding piece 24 is formed so that the edges of the front end thereof are in the same direction as the upper gusset 9a and the lower gusset 10a of the filter material portion 2, respectively. A trapezoidal opening 27 that is a part of the opening 21 is formed between the lower protruding pieces 24.

In addition, the trapezoidal opening 27 is further expanded from the lower side to increase the length of the hooking portion 23 to improve the hooking effect on the jaws. As a result, the face-receiving body 3 can be reliably hung on the jaw.

The face-receiving body 3 is formed with an upper protruding piece 26 on the upper side portion 25 side of the ring portion 20. These upper protruding pieces 26 are configured to separate the upper side portion 5 from the lower side portion 6 and stretch and expand in the longitudinal direction when being worn. When, close to the two sides of the nose. In addition, the upper protruding piece 26 may also be in close contact with at least a part of the nose when it is worn. The upper protruding pieces 26 form a pair symmetrically with respect to the center line extending in the up and down direction. The upper protruding pieces 26 are formed so that the distance between each other is gradually widened downward along the shape of the two sides of the nose, and An inverted V-shaped opening 28 is formed therebetween. The trapezoidal opening 27 and the inverted V-shaped opening 28 are formed into a size for the mouth and nose of the wearer to enter.

Each of the upper protruding pieces 26 has a front end formed in an angular shape, and is formed in a tongue-like shape to protrude into the opening 21. The upper protruding piece 26 is the same as the lower protruding piece 24, and the front end is extended to the center filter medium 8 respectively. In other words, the upper protruding piece 26 extends so as to have the same height with respect to the upper and lower directions of the filter material portion 2. The upper protruding pieces 26 are each formed so that the width becomes narrower toward the front end. The lower protruding piece 24 and the upper protruding piece 26 extend in the direction of approaching each other, and the front ends of each other are located close to each other.

As described above, the face-receiving body 3 is provided with side portions 30 formed in an arc shape on both sides of the ring portion 20, respectively. A curved opening 31 having a predetermined curvature is formed on the inner side of these side edges 30. Form this The curved portion 31a of the curved opening 31 is formed continuously with each side of the upper protruding piece 26 and the lower protruding piece 24.

The curved portion 31a is formed with a predetermined curvature with respect to the up-down direction. When the curved portion 31a separates the upper side portion 5 and the lower side portion 6 and stretches and expands in the longitudinal direction, it absorbs the tensile force and expands until it becomes a substantially linear shape. Therefore, the greater the curvature of the curved portion 31a with respect to the up-down direction, the longer the separation length, which improves the effect of absorbing the tensile force. In this way, the curved portion 31a ensures a stretched width, and has a function of improving the adhesion between the two temples when it becomes a substantially linear shape.

Here, when the curved portion 31a is not formed, when it becomes a substantially linear shape, since only the elastic elongation of the face body 3 is achieved, the portion that abuts the snail portion becomes hard due to the above-mentioned tensile force. And there is a significant loss of wear and tear. However, when the curved portion 31a is formed as in the present embodiment, even if it appears to be linear due to the above-mentioned tensile force, there is still room for continuous extension due to elasticity, and therefore, a good wearing feeling can be constantly obtained.

When the upper protruding piece 26 separates the upper side portion 5 from the lower side portion 6 and stretches and expands in the longitudinal direction, the front ends of the upper protruding pieces 26 move upward to approach each other, and the inverted V-shaped opening 28 is changed. Form the strength of the lengthwise shape. At this time, the center filter material 8 of the filter material portion 2 is pressed by the respective front ends of the upper protruding piece 26, so that the upper gusset 9a and the lower gusset 10a are pressed and expanded three-dimensionally. In the state where the front ends of the upper protruding pieces 26 are close to each other, the center filter material 8 of the filter material portion 2 is pushed and expanded at the same height, so the pressing force is concentrated near the center of the center filter material 8. Furthermore, a force is applied to deform the inverted V-shaped opening 28 into a longitudinal shape. Therefore, the contact area of the side surface of each upper protruding piece 26 with respect to the side surface of the nose is widened, and it can be strongly pressed against the side surface of the nose.

Similarly, when the lower protruding piece 24 separates the upper side portion 5 and the lower side portion 6 and stretches and expands in the longitudinal direction, the front end of each lower protruding piece 24 moves downward to approach each other. At this time, with the lower Each front end of the protruding piece 24 presses the center filter material 8 of the filter material portion 2, so that the upper gusset 9a and the lower gusset 10a are pressed and expanded three-dimensionally. In the state where the front ends of the lower protruding pieces 24 are close to each other, they are pushed and expanded at the same height of the center filter material 8 of the filter material portion 2, so the pushing force is concentrated near the center of the center filter material 8. Here, the lower protruding piece 24 and the upper protruding piece 26 have predetermined rigidity in order to make the upper gusset 9a and the lower gusset 10a three-dimensionally press and expand and maintain their state.

The pair of left and right straps 4 are respectively formed flat by elastically stretchable rubber cords. In addition, the pair of left and right straps 4 may also be formed of known elastic materials such as non-woven fabrics, woven fabrics, and plastic films. One end 4a of each of the pair of left and right straps 4 is connected to the vicinity of the lower end of the upper side portion 5 of the filter material portion 2, and is joined by welding or bonding along the inclination direction of the upper side portion 5 thereof. The other ends 4b of the pair of left and right straps 4 are respectively along the inclination direction of the inclined side portion 7b approximately 1/4 of the height in the up and down direction of the filter material portion 2, and are joined by the same means as described above. The joining of the one end 4a and the other end 4b of the pair of left and right straps 4 is performed simultaneously with joining the outer peripheral edge of the annular portion 20 of the face body 3 to the outer peripheral edge of the filter material portion 2 by means such as welding or bonding.

Next, the method and effect of the mask 1 of the present embodiment will be described.

The mask 1 folds the upper gusset 9a and the lower gusset 10a into a flat state. In this way, the volume of the mask 1 after packaging is not too large, so it is extremely easy to transport and store. In addition, when the mask 1 constructed as above is worn, for example, the face-receiving body 3 side of the mask 1 is brought into contact with the wearer’s face, and the nose bridge 17 is bent to make the face-receiving body 3 closely contact the protruding part of the nose. After that, a pair of left and right straps 4 are wrapped around the ears. Here, when the nose bridge 17 is closely attached to the protruding part of the nose, the upper protruding pieces 26 will be closely attached to both sides of the nose to position the upper part of the mask 1. Here, the nose bridge 17 is located approximately at the center of the face-receiving body 3 in the left-right direction and between the virtual horizontal line connecting the upper ends of both sides of the face-receiving body 3 and the top of the mountain-shaped portion above the upper end of the face-receiving body 3. The position of the part is arranged to be bilaterally symmetrical and the longitudinal direction is along the left and right direction of the mask 1. Therefore, the curved When the nose bridge 17 is folded, the adhesion to the nose can be improved, and the upper protruding piece 26 can surely push and expand the upper gusset 9a and the lower gusset 10a three-dimensionally.

Then, the wearer stretches and expands the longitudinal direction with the fingertips to separate the upper side portion 5 and the lower side portion 6 of the middle portion of the filter material portion 2 in the left-right direction.

In this way, as shown in FIGS. 5 and 6, the face-receiving body 3 is elastically deformed up and down accordingly, and the curved portions 31a of the left and right side portions 30 of the face-receiving body 3 are elongated from the shape shown by the solid line in FIG. 1 Until it becomes a substantially straight line as shown by the two-dot chain line that absorbs the above-mentioned tensile force, the two temples are in close contact along the shape of the face. At this time, the inner peripheral side of the face-receiving body 3 is separated from the filter material portion 2, so that the position of the curved portion 31a in the front-rear direction is not changed and becomes a substantially linear shape. Here, when the upper side portion 5 and the lower side portion 6 are separated and stretched and expanded in the longitudinal direction, if the curvature of the inner curved portion 31a of the left and right side portions 30 is small, it will immediately become a straight line, and the tensile force will be absorbed The effect is low, so that the adhesion effect with the two facets becomes low. Therefore, if the curved portion 31a becomes a straight line immediately, when the mouth is opened due to a conversation or the like, the amount of expansion and contraction of the mask 1 is exhausted. Therefore, for example, when the jaw becomes a fulcrum, the mask 1 will slide downward. On the other hand, When the nose becomes a fulcrum, the mask 1 deviates upward from the jaw, and there is a defect that it cannot be stably maintained at a predetermined position on the face.

In this regard, in the present embodiment, the face body 3 is an elastic system, which is joined only at the peripheral edge portion 20a of the ring portion 20, and since the curved portions 31a of the left and right side portions 30 of the face body 3 are relative to the vertical direction It is formed into a predetermined curvature and absorbs the above-mentioned tensile force to extend until it becomes a substantially straight line. Therefore, the restoring force exerts appropriate pressure on the two snails, so that the left and right side portions 30 of the face contact body 3 are in close contact with the two snails. And constantly maintain its state. As a result, the intrusion of foreign matter such as dust from the outside can be prevented, and even when the mouth is opened due to conversation, the mask 1 will not deviate upward and downward, and the mask 1 can be stably maintained at a predetermined position on the face.

Furthermore, when the upper side portion 5 is separated from the lower side portion 6 and stretched and expanded in the longitudinal direction, and the hook portion 23 of the face receiving body 3 is hung on the jaw, the lower side portion 6 of the face receiving body 3 is tilted toward the front of the face Elastic deformation. In this way, the center filter material 8 of the filter material portion 2 is pressed by the respective front ends of the pair of left and right lower protruding pieces 24, so that the upper gusset 9a and the lower gusset 10a are pressed and expanded three-dimensionally. More specifically, as shown by a two-dot chain line in FIG. 1, the front end of each lower projecting piece 24 moves downward to approach each other. At this time, the center filter material 8 of the filter material portion 2 is pressed by the respective front ends of the lower projecting pieces 24, so that the upper pleats 9a and the lower pleats 10a are pushed and expanded three-dimensionally. In the state where the front ends of the lower protruding pieces 24 are close to each other, they are pushed and expanded at the same height of the center filter material 8 of the filter material portion 2, so the pressing force is concentrated near the center of the center filter material 8, and the upper pleats can be reliably made 9a and the lower gusset 10a are pressed and expanded three-dimensionally. Furthermore, since this state is supported by the lower protruding piece 24, the filter material portion 2 will not easily return to the original flat state, but can maintain the three-dimensional pressing and expanding state for a long time.

At the same time, the central filter material 8 of the filter material portion 2 is pressed by the respective front ends of the upper protruding pieces 26, so that the upper gusset 9a and the lower gusset 10a are pressed and expanded three-dimensionally. Specifically, as shown by a two-dot chain line in FIG. 1, the front ends of the upper protruding pieces 26 move upward to approach each other, and a force is applied to deform the inverted V-shaped opening 28 into a longitudinal shape. At this time, the center filter material 8 of the filter material portion 2 is pushed by the respective front ends of the upper protruding piece 26, so that the upper gusset 9a and the lower gusset 10a are three-dimensionally pushed and expanded. In the state where the front ends of the upper protruding pieces 26 are close to each other, they are pushed and expanded at the same height of the center filter material 8 of the filter material portion 2, so the pressing force is concentrated near the center of the center filter material 8, and the upper pleats can be reliably made The sheet 9a and the lower gusset 10a are pressed and expanded three-dimensionally. Furthermore, since this state is supported by the upper protruding piece 26, the filter material portion 2 will not easily return to the original flat state, but can maintain the three-dimensionally pressed and expanded state for a long time.

In addition, due to the force applied to deform the inverted V-shaped opening 28 into a longitudinal shape, the contact area of the side surfaces of the upper protruding pieces 26 with respect to the side of the nose portion is widened, and the nose portion can be strongly pressed against it. The side surface, and the increase in friction can make the adhesion around the nose better. In this way, the nose, mouth and temple of the wearer are covered by the mask 1.

As described above, in the present embodiment, after the nose piece 17 is bent to make the face-receiving body 3 closely contact the raised part of the nose, and the upper part of the mask 1 is positioned, the filter part 2 is pulled with the fingertips to make the face-receiving body 3 go up and down accordingly. It is elastically deformed, and the hanging part 23 of the face receiving body 3 is hung on the jaw, so the contraction force in the upper and lower directions of the face receiving body 3 will act on the face, which can further improve the adhesion force with the face.

In this way, according to the present embodiment, when the filter part 2 is expanded longitudinally, the face body 3 is elastically deformed up and down, and the left and right sides of the face body 3 are elastically deformed to closely adhere to the shape of the face, thereby further improving Adhesion to the face when worn. As a result, the intrusion of foreign matter such as dust from the left and right directions of the face receiving body 3 can be prevented.

In addition, the mask 1 of the present embodiment is formed with an upper gusset 9a and a lower gusset 10a extending laterally in the filter material portion 2. When bagging, the upper gusset 9a and the lower gusset 10a are folded into a flat state. After packaging, The volume is not too large, so it is extremely easy to transport and store. Furthermore, the mask 1 of this embodiment is composed of a filter material part 2, a face-receiving body 3, and a pair of left and right hanging straps 4, so a mask 1 with a small number of parts, easy manufacture, and good economy can be provided.

In addition, according to the present embodiment, since the lower side 22 of the face receiving body 3 is provided with a hooking portion 23 that is hooked on at least a part of the face of the face when it is worn, the face can be hooked reliably and easily. The lower side of the body 3 is on the side 22.

In addition, when wearing, the hooking part 23 is hooked on the jaw and is elastically deformed by tilting toward the front of the face. The filter material part 2 is pressed by the lower protruding piece 24 to three-dimensionally push and expand, because this state protrudes from the lower part. Supported by the sheet 24, the filter material portion 2 will not easily return to the original flat state, but can maintain the three-dimensional pressing and expanding state for a long time.

Furthermore, according to the present embodiment, since the pair of lower protruding pieces 24 are formed so that the distance becomes narrower as they go upward, and the center filter material 8 of the filter material portion 2 is pressed near the center, the center near the center of the center filter material 8 can be used as The top is pushed and expanded into a mountain shape. Thereby, the space part can be ensured, and the situation that the wearer has difficulty breathing can be prevented.

In addition, according to the present embodiment, when a pair of lower protruding pieces 24 are attached to the folded mask 1, the edges of each front end and the upper gusset 9a and the lower gusset 10a of the filter material part 2 form the same direction, so that the filter material part 2 is expanded longitudinally When the face-receiving body 3 is elastically deformed, the edge of each front end of the lower projecting piece 24 abuts against the central filter material 8, and the upper gusset 9a and the lower gusset 10a can be surely pushed and expanded.

In addition, according to the present embodiment, the upper side portion 25 of the face receiving body 3 is formed with an upper protruding piece 26 protruding like a tongue extending into the opening 21, and the upper protruding piece 26 is in close contact with the nose when it is worn. The two sides, so it can ensure the tightness around the nose. At this time, the upper protruding piece 26 is also at least a part that can be closely attached to the nose.

In addition, according to the present embodiment, a pair of upper protruding pieces 26 are formed along the shape of the nose, and the distance is wider as you go downward. Therefore, the adhesion around the nose can be made better, and the filter material portion 2 The upper protruding piece 26 pushes, pushes and expands three-dimensionally, and can secure a space.

In addition, according to this embodiment, one end 4a of the strap 4 is joined to the two corners of the upper portion near the lower end of the upper side portion 5 of the filter material portion 2, and each other end 4b is joined to approximately 1/4 of the height in the upper and lower direction of the filter material portion 2. The inclined side portion 7b allows the filter material portion 2 to be easily expanded longitudinally, and the filter material portion 2 hung on the jaw portion is pulled by the strap 4, thereby preventing the filter material portion 2 under the jaw portion from being rolled up.

Moreover, if the other ends 4b of the strap 4 are joined to the bottom two corners of the filter material portion 2, the lower edge 6 of the filter material portion 2 is pulled by the strap 4, so the throat is compressed or becomes trouble, In this regard, as in the present embodiment, these defects can be solved by joining the side portions approximately 1/4 of the height in the vertical direction.

Furthermore, according to the present embodiment, since the front ends of the pair of lower protruding pieces 24 and the pair of upper protruding pieces 26 are respectively formed in an angular shape, these corners are likely to act on the vicinity of the center of the central filter medium 8 of the filter material portion 2, and the filter medium The vicinity of the center of the central filter medium 8 of the portion 2 serves as the top portion, and it is surely and easily pushed and expanded into a solid shape.

Furthermore, according to the present embodiment, since the front ends of the lower protruding piece 24 and the upper protruding piece 26 extend to the same height with respect to the upper and lower directions of the filter material portion 2, the front ends of the lower protruding piece 24 and the upper protruding piece 26 are respectively close to each other In this state, the center filter material 8 of the filter material portion 2 is pushed and expanded at the same height. Therefore, the pressing force is concentrated near the center of the center filter material 8, and the upper pleats 9a and the lower pleats 10a can be pressed three-dimensionally. Extension.

In addition, according to the present embodiment, by forming the curved portion 31a inside the side portion 30, when the upper side portion 5 and the lower side portion 6 are separated and stretched in the longitudinal direction, the stretched width can be ensured and become When it is roughly straight, it can improve the adhesion with the two scorpions.

(Second Embodiment)

Fig. 7 is a back view showing a mask according to the second embodiment of the present invention.

Here, parts that are the same as or corresponding to those in the first embodiment described above are designated by the same symbols and redundant descriptions are omitted.

As shown in FIG. 7, the mask 1A of this embodiment is formed with the arc-shaped protrusion part 29 instead of the upper protrusion piece 26 of the said 1st Embodiment. Between the arc-shaped protrusions 29, an inverted V-shaped opening 29a having a shape different from the inverted V-shaped opening 28 of the first embodiment described above is formed.

The arc-shaped projecting portion 29 is formed from the center of the upper side portion 25 of the ring portion 20 in the left-right direction and gently bends in the left-right direction as it goes downward, and is formed to the left and right side portions 30. The arc-shaped protrusion 29 is configured to be in close contact along both sides of the nose when it is worn.

Specifically, in the mask 1A of this embodiment, when the upper side portion 5 and the lower side portion 6 are separated and stretched and expanded longitudinally, the front ends of the arc-shaped protrusions 29 move upward to approach each other, and an inverted V is applied. The character opening 29a is deformed into an elongated force. Therefore, the contact area of the inverted V-shaped opening 28 with respect to the side surface of the nose is widened, and can be strongly pressed against the side surface of the nose, and the increase in friction can make the adhesion around the nose better. Except for these functions and effects, it is the same as the first embodiment described above, so the description is omitted.

(Third Embodiment)

Fig. 8 is a back view showing a mask according to a third embodiment of the present invention.

Here, parts that are the same as or corresponding to those in the first embodiment described above are designated by the same symbols and redundant descriptions are omitted.

As shown in FIG. 8, the mask 1B of the present embodiment is not formed with the lower protruding piece 24 on the lower side 22 side of the aforementioned first embodiment, and the hanging part 23 is formed to be longer than the aforementioned first embodiment.

In this way, in this embodiment, since the hook portion 23 is formed to be longer than the aforementioned first embodiment, the hooking effect of the jaw portion is improved, and the hook portion 23 can be hooked on the jaw portion reliably and easily. The other configurations and functions are the same as those of the aforementioned first embodiment, so the description is omitted.

(Other embodiments)

The embodiments of the present invention have been described above, but these embodiments are presented as examples and are not intended to limit the scope of the present invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, changes, and combinations can be made without departing from the scope of the invention. And the scope of the invention, In the same way, these embodiments are included in the scope of the invention described in the patent application and its equivalent scope.

In addition, in each of the above-mentioned embodiments, a pair of straps 4 are respectively hung on the left and right ears of the wearer. However, it is not limited to this, and may be one of the upper and lower straps that are hung around the wearer's head. Rope strap.

In addition, in each of the above-mentioned embodiments, an example in which two upper pleats 9a and a lower pleat 10a are respectively formed in the upper and lower directions of the central filter material 8 is described, but it is not limited to this, and each of the upper pleats 9a may be formed. And the lower pleats 10a, and may be one set of mountain folds and valley folds broadly in the vicinity of the center of the filter material portion 2.

In addition, in each of the above-mentioned embodiments, an example in which the filter material portion 2 is formed in a substantially heptagonal shape is described, but it is not limited to this, and may be formed in other polygonal shapes.

Moreover, if the configuration is such that when the filter material portion 2 is expanded longitudinally, the face body 3 is elastically deformed up and down along with it, and the left and right sides of the face body 3 are elastically deformed to adhere closely to the shape of the face, it can be any configuration, and is not limited to Each of the above-mentioned embodiments.

(Example)

Next, specific examples of the mask of the first embodiment will be described.

Fig. 9 is an explanatory diagram showing a specific embodiment of the mask of the present invention. In addition, Figure 9 is a quantitative close test, which quantitatively measures the leakage of the mask. In addition, in Figure 9, FF refers to the fit factor, which is the value obtained by dividing the number of particles on the outside of the mask by the number of particles on the inside of the mask.

In this embodiment, the testing machine uses the PortaCount Pro8038 (trade name) manufactured by TSI Incorporated in the United States as the closeness tester, and the testing method is the N95 associated mode (N95 mode), and the evaluation action is a movement of eight actions. The size of the wearer A and the wearer B are different from each other's faces. For a general pleated mask and filter part 2 as shown in Figure 4, the mask 1 of the first embodiment (wearing Person A and wearer B) The results of these exercises, the results of its total protection coefficient and average leakage rate shown in Figure 9 can be obtained.

It can be seen from FIG. 9 that, compared with a general pleated mask, the mask 1 in which each movement is the first embodiment described above further improves the total protection coefficient and the average leakage rate of both wearer A and wearer B.

This result is due to the fact that when the mask 1 of the first embodiment described above is worn, the adhesion to the face is extremely high, so that the gap with respect to the face disappears and the leakage of dust and the like is prevented.

1: mask

2: Filter Department

3: face body

4: Lanyard

4a: one end

4b: the other end

20: Ring part

20a: Peripheral part

21: Opening

22: Bottom

23: set hanging part

24: Lower protruding piece

25: Upper side

26: upper protruding piece

27: Trapezoidal opening

28: Inverted V-shaped opening

30: side

31: Curved opening

31a: Bend

Claims (6)

A mask with: The filter part is composed of a breathable sheet material, and is formed with at least one pleated sheet extending horizontally. When being worn, the pleated sheet extends longitudinally to cover at least the nose and mouth; The face-receiving body is formed into a ring shape with an elastically deformable plate, and the peripheral edge of the ring is joined to the aforementioned filter material portion, and when it is worn, it contacts the face and corresponds to at least the aforementioned nose portion and the aforementioned mouth portion. An opening is formed at the position; and A strap, which is hung around the head or ears, and wears the aforementioned filter material portion and the aforementioned face-receiving body on the aforementioned face; And it is configured such that when the filter part is expanded longitudinally, the face receiving body is elastically deformed up and down accordingly, and the left and right sides of the face receiving body are elastically deformed to closely follow the shape of the face. The mask according to claim 1, wherein the face-receiving system is provided with a hanging part, and when the hanging part is worn, the ring-shaped part is hung on at least a part of the face; A protruding piece extending toward the inside of the opening is formed near the hanging portion; The hanging portion is provided on the lower edge side of the annular portion, and the protruding pieces are formed to extend toward the opening on both sides of the hanging portion, and the hanging portion hangs on the jaw when being worn. unit. The mask according to claim 2, wherein the protruding pieces are a pair of lower protruding pieces that are formed symmetrically on the lower side of the annular portion with respect to the center line extending in the vertical direction, and the lower protruding pieces The system is formed so that the interval becomes narrower as it goes upward. The mask according to claim 1, wherein the face receiving system is formed with a tongue on the upper edge side of the annular portion to project an upper protruding piece into the opening, and is configured such that the upper portion is The protruding piece is in close contact with at least a part of the nose. The mask according to claim 4, wherein the upper protruding pieces are formed in a pair symmetrically with respect to the center line extending in the up and down direction, and the upper protruding pieces are formed along the shape of the nose, and the more facing The lower the gap is wider. The mask according to claim 1, wherein the filter material portion is formed in a polygonal shape, each end of the strap is respectively joined to two upper corners of the upper part, and each other end of the strap is respectively joined to the filter material portion. The sides are approximately 1/4 of the height in the vertical direction.

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