Mask

Abstract

A mask is provided that can maintain a comfortable wearing experience as much as possible. The mask (1) has a mask body (2) and a face contact body (3). The mask body (2) is provided with a shape retainer (6) for maintaining the three-dimensional structure when wearing. The shape retainer (6) is provided with: a shape retainer side central portion (60a) which covers the central part of the wearer's (100) face in the left-right direction along the longitudinal direction; and shape retainer side folding portions (60b, 60b) which are connected to the side of the shape retainer side central portion (60a) and folded along the longitudinal direction of the mask body (2). ; and the shape retainer side portion (60c, 60c) is provided in such a way as to be connected to the side fold portion (60b, 60b) of the shape retainer, covering the side of the wearer's (100) face, the shape retainer side central portion (60a) has an upper narrowing portion (610) and a lower narrowing portion (620) that narrows in width from the center portion in the vertical direction toward the top and / or bottom and in the horizontal direction, and the shape retainer (6) is provided with a slit (71 to 77) for further retaining the three-dimensional structure when worn.

Description

Technical Field

[0001] This invention relates to masks suitable for various uses, such as dust masks, medical masks, etc. Background Technology

[0002] In the past, various types of masks were used to prevent wearers from inhaling harmful substances or viruses from the outside, or to prevent droplets contained in the wearer's exhalation from spreading to the outside.

[0003] Furthermore, inventions of various masks that facilitate breathing and conversation by creating sufficient space between the mask and the face, and that prevent stuffiness between the face and the mask, are known, for example, Patent Document 1.

[0004] Patent Document 1 describes a face mask comprising: a central piece having outwardly curved, convex, opposing left and right side edges; and a first side piece and a second side piece, which are continuously disposed with respect to the left and right side edges of the central piece. When the distance between the lower end of the joint portion where the first side piece joins the central piece and the lower end of the joint portion where the second side piece joins the central piece is set as A1, and the distance between the upper end of the joint portion where the first side piece joins the central piece and the upper end of the joint portion where the second side piece joins the central piece is set as A2, A1 is greater than A2.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent No. 4632941 Summary of the Invention

[0008] The problem the invention aims to solve

[0009] However, the mask described in the aforementioned patent document 1 has the following problems: the space between the face and the mask can easily collapse due to the force generated by deep breathing, making it difficult to breathe or talk, and it can easily become stuffy and may not be able to maintain a comfortable wearing experience.

[0010] The present invention was made in view of the following situation, and its object is to provide a mask that can maintain a comfortable wearing experience as much as possible.

[0011] Solution for solving the problem

[0012] To address the aforementioned issues, the present invention provides a mask comprising: a mask body portion exposed on the outside when worn on the face of a wearer; and a face contact body disposed on the inside of the mask body portion and in contact with the wearer's face. A shape retainer is provided on the mask body portion to maintain its three-dimensional structure during wear. The shape retainer includes: a central portion that covers the central portion of the wearer's face in a longitudinal direction; a folding portion connected to the side of the central portion and folded along the longitudinal direction of the mask body portion; and a side portion that is connected to the side of the folding portion and covers the side of the wearer's face. The central portion has a narrowing portion whose width decreases in the left-right direction from the central portion in a vertical direction towards the top and / or bottom. A slit is provided on the shape retainer to further maintain the three-dimensional structure during wear.

[0013] In a preferred embodiment of the invention, on the shape retainer, as the slit, at least one pair of slits are provided on both sides of the central portion, spanning the fold line that serves as the boundary between the fold portion and the side portion, from the fold portion to the side portion.

[0014] In a preferred embodiment of the present invention, in the main body of the mask, the shape retainer is folded into the main filter while overlapping with it.

[0015] In a preferred embodiment of the invention, the shape retainer is generally butterfly-shaped as a whole, consisting of the elongated central portion and the folded portions and the side portions that extend outward from both ends.

[0016] In a preferred embodiment of the invention, a figure-eight slit is provided on the shape retainer as the slit in the portion along the side of the wearer's nose.

[0017] The effects of the invention

[0018] The mask of the present invention comprises a mask body and a face contact body. The mask body is provided with a shape retainer for maintaining a three-dimensional structure during wear. This shape retainer includes: a central portion that covers the central part of the wearer's face in the left-right direction along the longitudinal direction; a folding portion that is laterally connected to the central portion and folded along the longitudinal direction of the mask body; and a side portion that is laterally connected to the folding portion and covers the side of the wearer's face. The central portion has a narrowing portion whose width decreases in the left-right direction from the central portion in the vertical direction upwards and / or downwards. A slit is provided in the shape retainer for further maintaining the three-dimensional structure during wear. Therefore, by raising the folding portion of the shape retainer, the folding portion of the mask body is also raised, forming a three-dimensional structure in which the central portion of the mask body is raised longitudinally than the side portion of the mask body, creating a space between the face and the mask. Furthermore, it is easy to bend along the extension direction of the slit provided in the shape retainer, and compared to the original fold line, it is less likely to return to its original shape after bending on the slit side. Therefore, it is possible to provide a mask that can easily maintain a three-dimensional structure with space between the face and the mask, creating a state that is easy to breathe and talk in without being stuffy, and can maintain a comfortable wearing experience as much as possible.

[0019] Furthermore, in the mask of the present invention, on the shape retainer, as slits, at least a pair of slits are provided on both sides of the central portion of the shape retainer, in such a way that they cross the fold line that serves as the boundary between the fold and the side portion, from the fold portion to the side portion. Therefore, it is easy to bend along the extension direction of the slit starting from the slit. Compared with the original fold line of the fold portion, it is not easy to restore after bending on the slit side, and it is easier to maintain a three-dimensional structure with space between the face and the mask.

[0020] Furthermore, in the mask of the present invention, in the main body of the mask, the shape retainer is folded into the main filter while overlapping with the main filter. Therefore, even if the shape retainer is not installed later, the folded shape retainer further maintains the three-dimensional structure when worn, so it is relatively effortless.

[0021] Furthermore, in the mask of the present invention, the shape retainer is generally butterfly-shaped as a whole, consisting of a central portion of an elongated shape and folded portions and side portions of a shape that extend outward from both ends. Therefore, the shape retainer does not span the upper and lower narrow portions, thus the restoring force is suppressed. It is easy to form a three-dimensional structure with space between the face and the mask when worn with a small force and is easy to fold. The outer portion of the mask body is easier to bend than the outline of the left and right side portions that extend outward, which ensures a close fit to the wearer's face.

[0022] Furthermore, in the mask of the present invention, a figure-eight slit is provided as a slit on the shape retainer in the portion along the side of the wearer's nose. Therefore, by utilizing this figure-eight slit, the deformation of the nose clip bending along the nose during wearing can be blocked as much as possible, thereby suppressing the deformation of the three-dimensional structure with space between the face and the mask during wearing. Attached Figure Description

[0023] Figure 1 This is a front view of the mask according to this embodiment.

[0024] Figure 2 This is a rear view of the aforementioned face mask.

[0025] Figure 3 yes Figure 1 AA enlarged sectional view.

[0026] Figure 4 This is a front view showing the shape-retaining component used in the aforementioned face mask.

[0027] Figure 5 This is a front view showing the shape retainers in an overlapping usage state.

[0028] Figure 6 This is a diagram showing the wearer wearing the aforementioned mask from an angle of tilt.

[0029] Figure 7 This is a front view of a shape-retaining member used in a modified example of this embodiment of the mask.

[0030] Figure 8 This is a front view showing the state in which the lower part of the shape retainer side of the shape retainer is folded up.

[0031] Figure 9 This is a front view showing the state of the shape-holding component after its outline has been tidied up. Detailed Implementation

[0032] The following uses Figures 1 to 6 The mask according to an embodiment of the present invention will be described.

[0033] [Implementation Method]

[0034] Figure 1 and Figure 2 The mask 1 shown in this embodiment is mainly used to suppress the inhalation of particles such as hay fever and dust, and to suppress the wearer's (refer to) 100 (refer to) Figure 6 This is a so-called pleated nonwoven mask designed to prevent the dispersal of droplets contained in exhaled breath. However, the mask 1 of this embodiment can also be used for various purposes such as cold prevention and medical treatment.

[0035] like Figure 1 and Figure 2 As shown, the mask 1 of this embodiment includes: a mask body 2; a face contact body 3 that contacts the face of the wearer 100; a pair of upper and lower hanging straps 4, 4 that are wrapped around the head of the wearer 100 to wear the mask body 2 and the face contact body 3 on the face; and locking members 5, 5 for adjusting the length of the straps, which are respectively provided on the hanging straps 4, 4. Alternatively, instead of a pair of upper and lower hanging straps 4, 4, there may be a pair of left and right ear loops.

[0036] The main body 2 of the mask is the portion exposed to the outside when the mask 1 is worn on the face of the wearer 100. The main body 2 of the mask includes a main filter 20 and a shape-retaining member 6 disposed in layers on the main filter 20.

[0037] The main filter 20 is made of a breathable sheet material, such as a non-woven fabric, which is breathable and can suppress particles such as pollen, dust, or droplets contained in the wearer's breath.

[0038] like Figure 1 As shown, the main filter 20 is generally octagonal in the front view. This shape is suitable for covering the periphery of the wearer 100's nose and mouth. By setting the main filter 20 to this shape, a good wearing condition can be ensured. However, any front view shape other than this approximate octagon (e.g., approximate hexagon, approximate ellipse, etc.) can be used as long as it can cover the periphery of the wearer 100's nose and mouth.

[0039] For example in Figure 1 and Figure 2 In the folded front or rear view shown, the length of the main filter 20 in the left-right direction and the length in the up-down direction are respectively 120mm to 180mm (this length varies depending on the size of the mask 1, etc.). However, the main filter 20 is not limited to this size as long as it is large enough to fit snugly against the wearer's face during use and achieve a good wearing condition and dust protection function.

[0040] like Figure 1 and Figure 3 As shown, the main filter 20 has the following structures when viewed from the front and rear: a filter-side central portion 20a, a pair of filter-side folds 20b, 20b disposed on the left and right sides of the filter-side central portion 20a, and a pair of filter-side side portions 20c, 20c disposed on the sides of the filter-side folds 20b, 20b.

[0041] The central portion 20a of the filter side is configured to cover the central portion of the wearer's face in the left-right direction along the vertical direction.

[0042] like Figure 1 As shown, the central portion 20a on the filter side is formed in the front view as a generally octagonal shape having a pair of vertical portions 200, 200, an upper narrowing portion 210, 210 respectively provided above the vertical portions 200, 200, a lower narrowing portion 220, 220 respectively provided below the vertical portions 200, 200, an upper end portion 230 and a lower end portion 240.

[0043] The vertical portions 200 and 200 are formed parallel to each other in the vertical direction at the center of the front view.

[0044] The narrower sections 220 at the bottom are formed such that their size gradually decreases downwards in the left-right direction.

[0045] The upper end portion 230 and the lower end portion 240 are formed in the shape of the upper and lower ends of the main filter 20 along the main body portion 2 of the mask. The upper end portion 230 is formed in an upwardly convex curved shape, and the lower end portion 240 is formed in a downwardly convex curved shape.

[0046] In addition, such as Figure 1 , Figure 2 and Figure 3 As shown, the main filter 20 is folded up in the sections of fold lines 2a and 2b when not in use.

[0047] like Figure 1 and Figure 2 As shown, the two ends 4a and 4a of the hanging rope 4 are respectively connected to the top and bottom of the main filter 20.

[0048] The locking element 5 for adjusting the rope length is a cylindrical body, which is respectively set in the middle of the upper and lower hanging ropes 4, 4, and is configured to allow the length of the upper and lower hanging ropes 4, 4 to be adjusted by sliding the locking element 5.

[0049] The shape retainer 6 is made of a breathable sheet material with a higher bending stiffness than the main filter 20. Specifically, it is made of a breathable material such as non-woven fabric that can suppress the passage of particles such as pollen, dust, or droplets contained in the wearer's exhalation.

[0050] like Figure 4 and Figure 5As shown, the shape retainer 6, when unfolded into a flat front view, is generally butterfly-shaped. Specifically, the shape retainer 6 has a generally rectangular, longitudinally elongated strip-shaped portion in its generally central part in the front view, and portions on both sides that extend outward (vertically) from the central part in the front view towards the sides (in this specification, such a shape is referred to as "generally butterfly-shaped"). The shape retainer 6 is configured to easily form a three-dimensional structure with a space 300 between the wearer's face and the mask body 2 when worn, and is also easily foldable (see also [reference]). Figure 6 (The details will follow.) However, the shape retainer 6 can also be any main view shape other than a general butterfly shape.

[0051] For example, Figure 1 As shown, the overall shape of the shape retainer 6 is formed to be smaller than that of the main filter 20.

[0052] like Figure 4 and Figure 5 As shown, the shape retainer 6, in front view and rear view, includes a shape retainer-side central portion 60a, a pair of shape retainer-side folded portions 60b, 60b disposed on the left and right sides of the shape retainer-side central portion 60a, and a pair of shape retainer-side side portions 60c, 60c disposed on the sides of the shape retainer-side folded portions 60b, 60b. Figure 4 and Figure 5 As shown, the shape retainer 6 is generally butterfly-shaped in the front view, consisting of a central portion 60a, folded portions 60b and 60b, and side portions 60c and 60c. Folded portions 60b and 60b are provided on the side of the central portion 60a and connected thereto, and side portions 60c and 60c are provided on the side of the folded portions 60b and 60b and connected thereto. However, in this embodiment, the central portion 60a, folded portions 60b and 60b, and side portions 60c and 60c are integrally formed from a single component.

[0053] Shape retention component 6 from Figure 5 As shown in the diagram, when unfolded into a flat state and not in use, such as Figure 1 , Figure 2 and Figure 3 As shown, it is folded into the main filter 20.

[0054] That is, such as Figure 1 and Figure 3As shown, the shape retainer 6 is positioned such that the central portion 60a on the shape retainer side overlaps with the central portion 20a on the filter side, the folded portions 60b and 60b on the shape retainer side overlap with the folded portions 20b and 20b on the filter side, and the side portions 60c and 60c on the shape retainer side overlap with the side portions 20c and 20c on the filter side. The fold line 2a of the main filters 20 and 20 and the fold line 6a of the shape retainer 6 are folded in a mountain fold, and the fold line 2b of the main filters 20 and 20 and the fold line 6b of the shape retainer 6 are folded in a valley fold, thereby folding the shape retainer 6 inward.

[0055] Furthermore, the central portion 60a of the shape retainer is configured to cover the central portion of the wearer's face in the left-right direction along the vertical direction. Additionally, as... Figure 3 , Figure 4 and Figure 5 As shown, the central portion 60a on the shape retainer side further improves bending stiffness by overlapping the two shape retainers 61 and 62. Alternatively, the central portion 60a on the shape retainer side may not be an overlapping double layer, but rather a single layer.

[0056] In addition, the central portion 60a on the shape retainer side is similarly configured to cover the central portion in the left-right direction of the wearer's face along the vertical direction as "longitudinal".

[0057] That is, such as Figure 4 and Figure 5 As shown, the central portion 60a of the shape retainer side is formed in the front view as a generally octagonal shape having a pair of vertical portions 600, 600, an upper narrowing portion 610, 610 respectively provided above the vertical portions 600, 600, a lower narrowing portion 620, 620 respectively provided below the vertical portions 600, 600, an upper end portion 630 and a lower end portion 640.

[0058] The vertical portions 600 and 600 are formed parallel to each other in the vertical direction at the center of the vertical portion in the main view state, and are only provided on the shape retainer 62 that overlaps with the lower side of the shape retainer 61, so as not to obstruct the shape retainer 61 from folding in at the fold line 6a.

[0059] The upper narrowing section 610 is formed such that its size gradually decreases upwards in the left and right directions.

[0060] The narrower sections 620 at the bottom are formed such that their size gradually decreases downwards in the left-right direction.

[0061] The upper end portion 630 and the lower end portion 640 are formed in the shape of the upper and lower ends of the main filter 20 along the main body portion 2 of the mask. The upper end portion 630 is formed in an upwardly convex curved shape, and the lower end portion 640 is formed in a downwardly convex curved shape.

[0062] The upper narrowing portions 610, 610 of the shape-retaining member side central portion 60a and their peripheral portions are joined to the upper narrowing portions 210, 210 of the filter side central portion 20a using heat fusion or the like based on high-frequency welding. Similarly, the lower narrowing portions 620, 620 of the shape-retaining member side central portion 60a and their peripheral portions 220, 220 of the filter side central portion 20a are also joined to the lower narrowing portions 220, 220 of the filter side central portion 20a using heat fusion or the like based on high-frequency welding.

[0063] Furthermore, the same processing method can be used to join other portions of the shape-retaining member side central portion 60a to other portions of the filter side central portion 20a. For example, the vertical portions 600 and the peripheral portions of 600 of the shape-retaining member side central portion 60a can be joined to the vertical portions 200 and the peripheral portions of 200 of the filter side central portion 20a. Alternatively, for example, the upper end portion 630 and the lower end portion 640 of the shape-retaining member side central portion 60a can be joined to the upper end portion 230 and the lower end portion 240 of the filter side central portion 20a.

[0064] Alternatively, the same processing can be used to join the portions other than the periphery of the central portion 60a on the shape retainer side and the central portion 20a on the filter side (e.g., portions that are separated from the periphery of the central portion 60a on the shape retainer side and the periphery of the central portion 20a on the filter side).

[0065] Alternatively, only the peripheral portions of the left and right sides of the shape-retaining member side central portion 60a and the filter side central portion 20a can be joined together. For example, the peripheral portions of the left and right sides of the upper narrowing portions 610, 610, and the lower narrowing portions 620, 620 can be joined to the peripheral portions of the left and right sides of the upper narrowing portions 210, 210, and the lower narrowing portions 220, 220 of the filter side central portion 20a. Alternatively, only the peripheral portion of one of the upper end portion 630 and the lower end portion 640 of the shape-retaining member side central portion 60a can be joined to the peripheral portion of one of the upper end portion 230 and the lower end portion 240 of the filter side central portion 20a.

[0066] Furthermore, the central portion 60a on the shape retainer side and the central portion 20a on the filter side can also be joined together by a hot-melt welding process other than high-frequency welding, or by a process other than hot-melt welding.

[0067] Furthermore, the shapes of the upper narrowing portions 610, 610 and the lower narrowing portions 620, 620 of the central portion 60a on the shape retainer side can also be formed during high-frequency welding or similar processes. For example, the upper and lower ends of the longitudinally elongated, approximately rectangular central portion 60a on the shape retainer side can be formed into a shape where the width decreases in the left and right directions as it moves upward and downward from the central portion, and then heat-fused to the central portion 20a on the filter side, etc.

[0068] Furthermore, on the shape-retaining member 6, on both sides of the central portion 60a on the shape-retaining member side, slits 71, 72, 73, and 74 are provided radially from the shape-retaining member side fold 60b to the shape-retaining member side portion 60c, extending outwards, to further maintain the left and right three-dimensional structure when worn. Because the slits 71, 72, 73, and 74 are arranged radially, the mask 1 can form a regular cup shape when worn.

[0069] In addition, slits 75 are provided on each side portion 60c, 60c of the shape retainer 6. These slits 75 are located below the eyes of the wearer 100 when the wearer 100 is wearing the mask 1, and form a valley below the eyes of the wearer 100 when wearing the mask.

[0070] Additionally, on the shape retainer 6, a figure-eight slit 76 is provided on the central portion 60a of the shape retainer side, which is located below the nose clip 8 of the main filter 20, and runs along the side of the nose of the wearer 100 when worn.

[0071] Additionally, on the shape retainer 6, a V-shaped slit 77 is provided along the edge of the mouth of the wearer 100 in the central portion 60a of the shape retainer side when worn.

[0072] like Figure 2 As shown, the face contact body 3 has an annular portion 30, an upper edge portion 31, 31 disposed on the inner upper side of the annular portion 30 and respectively provided with slits 3a, and a lower edge portion 32 disposed on the inner lower side of the annular portion 30.

[0073] Furthermore, when worn, the ring-shaped portion 30 fits snugly against the area around the nose and mouth of the wearer 100, and the upper portions 31 and 32 are folded at the slit 3a, thereby deforming the face contact body 3 along the side of the wearer 100's nose. In addition, the lower portion 32 fits snugly against the area around the wearer 100's chin and deforms.

[0074] Next, the method of using and function of the mask 1 in this embodiment will be explained.

[0075] like Figure 1 and Figure 2 As shown, the mask 1 of this embodiment is flat when folded, and its volume is small when packaged, making it extremely easy to transport and store.

[0076] And, as Figure 6 As shown, if the hanging straps 4 and 4 are wrapped around the head and the mask 1 of this embodiment is worn on the face of the wearer 100, the main filter 20 of the mask body 2 and the face contact body 3 are in close contact with the nose and mouth of the wearer 100, forming a three-dimensional structure with a space 300 between the wearer 100's face and the mask body 2. Therefore, it is easy to breathe and talk, not stuffy, and has a comfortable wearing feel.

[0077] In the mask 1 of this embodiment, by raising the shape-retaining member-side folds 60b, 60b of the shape-retaining member 6, the filter-side folds 20b, 20b of the mask body 2 are also raised. This forms a three-dimensional structure in which the filter-side central portion 20a and the shape-retaining member-side central portion 60a of the mask body 2 are raised longitudinally than the filter-side side portions 20c, 20c and the shape-retaining member-side side portions 60c, 60c of the mask body 2, creating a space 300 between the face and the mask 1. Furthermore, the force applied by the slits 71 to 77 provided in the shape-retaining member 6 further maintains this three-dimensional structure when worn. As a result, a mask 1 can be provided that can easily maintain the three-dimensional structure with the space 300 between the face and the mask 1, creating a state that is easy to breathe and talk in without being stuffy, and maintaining a comfortable wearing experience as much as possible.

[0078] In the mask 1 of this embodiment, in particular, the central portion 60a of the shape retainer side is not easily flattened, so it can not only maintain a comfortable wearing experience, but also maintain a good appearance.

[0079] Furthermore, in the mask 1 of this embodiment, on the shape retainer 6, on both sides of the central portion 60a of the shape retainer side of the shape retainer 6, radial slits 71, 72, 73, and 74 are provided from the shape retainer side fold 60b to the shape retainer side 60c, in such a way that they cross the fold line 6b which serves as the boundary between the shape retainer side fold 60b and the shape retainer side 60c. Therefore, it is easy to bend along the extension direction of the slits 71, 72, 73, and 74 starting from these slits 71, 72, 73, and 74. Compared with the fold line of the original fold, it is not easy to restore after bending on the slit side, and it is easier to maintain the three-dimensional structure with the space 300 between the face and the mask 1.

[0080] On both sides of the central portion 60a of the shape retainer side, in particular, a pair of slits 72, 72 in a direction perpendicular to the length direction of the central portion 60a of the shape retainer side can generate a greater force to further maintain the three-dimensional structure of the space 300 between the wearer's face 100 and the mask 1 formed during wearing. Furthermore, the remaining radial slits 71, 73, 74 can also generate a force to maintain the state in which the curved shape retainer side fold 60b is upright.

[0081] Furthermore, in the mask 1 of this embodiment, the shape retainer 6 is folded into the main filter 20 while overlapping with the main filter 20. Therefore, even if the shape retainer 6 is not installed later, the folded shape retainer 6 further maintains the three-dimensional structure when worn, so it is relatively effortless.

[0082] Furthermore, in the mask 1 of this embodiment, the shape retainer 6 is generally butterfly-shaped as a whole, consisting of a longitudinally elongated shape retainer side central portion 60a and shape retainer side folded portions 60b, 60b and shape retainer side portions 60c, 60c that extend outward from both ends. Therefore, the shape retainer 6 does not span the upper narrowing portion 210 and the lower narrowing portion 220 of the main filter 20, thus the restoring force is suppressed. It is easy to form a three-dimensional structure with a space 300 between the face and the mask 1 when worn with a small force and is easy to fold. The portion of the filter side portions 20c, 20c of the mask body 2 that is further outward than the portion of the outline of the left and right shape retainer side portions 60c, 60c that extend outward is easy to bend, which can ensure a tight fit to the face of the wearer 100.

[0083] In addition, in the mask 1 of this embodiment, a figure-eight slit 76 is provided on the shape retainer 6 on the side of the nose of the wearer 100. Therefore, by using the figure-eight slit 76, the deformation of the nose clip 8 bending along the nose when wearing can be blocked as much as possible, thereby suppressing the deformation of the three-dimensional structure having the space 300 between the face and the mask 1.

[0084] In addition, in the mask 1 of this embodiment, the shape retaining member 6 is provided with slits 75 that form valleys below the eyes when worn, so that the shape below the eyes can be made regular when worn.

[0085] In addition, in the mask 1 of this embodiment, on the shape retainer 6, a V-shaped slit 77 is provided along the mouth of the wearer 100 in the central part 60a of the shape retainer side when worn, so that the part near the mouth is less likely to be sunken.

[0086] In addition, in the mask 1 of this embodiment, the face contact body 3 has an annular portion 30, an upper edge portion 31, 31 disposed on the inner upper side of the annular portion 30 and respectively provided with slits 3a, and a lower edge portion 32 disposed on the inner lower side of the annular portion 30, so that it can fit more closely to the face of the wearer 100.

[0087] [Variation Example]

[0088] Next, use Figures 7 to 9 Modifications to the embodiments of the present invention will be described.

[0089] Furthermore, in this modified example, the same reference numerals are used for parts that are the same as or correspond to those in the above-described embodiments, and the descriptions are omitted. Only the structures and effects that differ from those in the embodiments are described.

[0090] In this variation, such as Figure 7 As shown, instead of using two pieces as in the above embodiment, the shape retainer 6 is a single shape retainer 63 with a pair of trapezoidal lower folded portions 60d, 60d at the lower left and right ends of the central portion 60a on the shape retainer side.

[0091] For the shape retainer 63, such as Figure 8 As shown, the lower folded portions 60d and 60d of a pair of trapezoidal shape retainer are folded to the front side, increasing the thickness of the lower portion of the central portion 60a of the shape retainer side, which corresponds to the chin side of the wearer's face when worn, thereby improving bending stiffness.

[0092] More specifically, such as Figure 7 and Figure 8 As shown, the lower fold portion 60d of the trapezoidal shape retainer side on the left is folded to the right with the fold line 6c of the shape retainer 63 as the center, so that the left end 60e becomes the position of the fold line 6c of the right shape retainer 63, and the lower fold portion 60d of the trapezoidal shape retainer side on the right is folded to the left with the fold line 6c of the shape retainer 63 as the center, so that the right end 60f becomes the position of the fold line 6c of the left shape retainer 63, and the lower fold portion 60d of the trapezoidal shape retainer side on the right is folded to the left with the fold line 6c of the shape retainer 63, and the lower end 60f becomes the position of the fold line 6c of the left shape retainer 63, and the lower end 60d ....

[0093] Here, the fold line 6c of the shape retainer 63 has a slit formed in its center along the line direction, so that bending along the fold line 6c can be easily performed.

[0094] Thus, at the lower part of the central portion 60a on the shape retainer side of the shape retainer 63, the two upper left and right parts become two overlapping areas A1 where a lower folded portion 60d on the shape retainer side overlaps the central portion 60a on the shape retainer side, and the lower part becomes three overlapping areas A2 where two lower folded portions 60d on the shape retainer side overlap the central portion 60a on the shape retainer side, thereby increasing the thickness and improving the bending stiffness.

[0095] Based on this, such as Figure 9 As shown, the central portion 60a on the shape-retaining member side is provided with an upper end portion 630, upper narrowing portions 610, 610, lower narrowing portions 620, 620, and a lower end portion 640, similar to those in the above embodiment. The upper end portion 630 is formed into an upwardly convex curved shape, and the lower end portion 640 is formed into a downwardly convex curved shape. The upper narrowing portions 610, 610 are formed such that their size gradually decreases upward in the left-right direction, and the lower narrowing portions 620, 620 are formed such that their size gradually decreases downward in the left-right direction. The upper narrowing portions 610, 610, lower narrowing portions 620, 620, and lower end portion 640 are formed during high-frequency welding processes, etc., and their outlines are refined.

[0096] Furthermore, although the lower fold portion 60d on the side of the shape retainer is set as a pair, it is not limited to this and may not be a pair.

[0097] In addition, although the lower fold portion 60d of the shape retainer side is set to a trapezoidal shape, it is not limited to this and can also be other shapes.

[0098] In addition, although the lower fold portion 60d of the shape retainer side is folded to the front side of the central portion 60a of the shape retainer side, it is not limited to this and can also be folded to the back side.

[0099] Furthermore, the lower folded portion 60d of the shape retainer side is provided with not only two overlapping areas A1, but also three overlapping areas A2, but it is not limited to this, and only two overlapping areas A1 may be provided.

[0100] Additionally, on the shape retainer 63, above the V-shaped slit 76 located along the side of the nose of the wearer 100, there is also an inverted V-shaped slit 78.

[0101] Compared to the above embodiment where two shape retainers 61 and 62 are overlapped, in this modified example of the mask 1, even if the shape retainer 6 is set as a single shape retainer 63, the bending stiffness is increased by folding the lower shape retainer side folding portion 60d of the lower part of the shape retainer side central portion 60a. In a manner similar to the above embodiment, the middle portion 60 of the shape retainer side central portion 60a is less likely to be flattened, and the number of components is reduced, thereby enabling manufacturing at a lower cost.

[0102] Furthermore, in this modified mask 1, on the shape retainer 63, above the V-shaped slit 76 located along the side of the wearer 100's nose, an inverted V-shaped slit 78 is also provided. Therefore, by utilizing this inverted V-shaped slit 78, the deformation of the nose clip 8 bending along the nose during wearing can be minimized, thereby suppressing the space 300 between the face and the mask 1. Figure 6 The deformation of the three-dimensional structure of ).

[0103] The embodiments and modifications described above are examples of the present invention, and the present invention is not limited to the above embodiments and modifications. That is, the specific structure and specific processes of the above embodiments and modifications can be modified in various ways without departing from the spirit of the present invention.

[0104] Explanation of reference numerals in the attached figures

[0105] 1. Face mask; 2. Face mask body; 20. Main filter; 20a. Central portion of the filter side; 20b. Folded portion of the filter side; 20c. Side portion of the filter side; 200. Vertical portion of the central portion of the filter side; 210. Upper narrowing portion of the central portion of the filter side; 220. Lower narrowing portion of the central portion of the filter side; 230. Upper end of the central portion of the filter side; 240. Lower end of the central portion of the filter side; 2a, 2b. Fold lines of the main filter; 3. Face contact body; 30. Circular portion; 3a. Slit; 31. Upper edge; 32. Lower edge; 4. Hanging cord; 4a. End of the hanging cord; 5. Locking element for adjusting cord length; 6. Shape retaining element; 61, 62, 63. Shape retaining element; 60a. Central portion of the shape retaining element side (central portion); 60. Middle part of the central portion of the shape retainer side; 60b. Folded portion of the shape retainer side; 60c. Side portion of the shape retainer side; 60d. Lower folded portion of the shape retainer side; 60e. Left end of the lower folded portion of the shape retainer side; 60f. Right end of the lower folded portion of the shape retainer side; 6a, 6b, 6c. Fold lines of the shape retainer; 600. Vertical portion of the central portion of the shape retainer side; 610. Upper narrowing portion of the central portion of the shape retainer side; 620. Lower narrowing portion of the central portion of the shape retainer side; 630. Upper end of the central portion of the shape retainer side; 640. Lower end of the central portion of the shape retainer side; 71-78. Slit; 8. Nose clip; 100. Wearer; 300. Space; A1, A2. Overlapping area.

Claims

1. A type of face mask, which possesses: The main body of the mask is exposed on the outside when worn on the wearer's face; and A face contact element, located on the inside of the main body of the mask, comes into contact with the wearer's face. The mask is characterized in that, The main body of the mask is provided with a shape retainer for maintaining its three-dimensional structure when worn. This shape retainer includes: a central portion that covers the central part of the wearer's face in a longitudinal direction; a folding portion that connects to the side of the central portion and folds up along the longitudinal direction of the mask main body; and a side portion that connects to the side of the folding portion and covers the side of the wearer's face. The central portion has a narrowed portion that decreases in width from the central portion in the vertical direction toward the top and / or bottom, and from the left and right direction. The shape retainer is provided with a slit for further maintaining the three-dimensional structure when worn.

2. The mask according to claim 1, characterized in that, On the shape retainer, as the slit, at least one pair of slits are provided on both sides of the central portion, spanning the fold line that serves as the boundary between the fold and the side portion, from the fold portion to the side portion.

3. The mask according to claim 1, characterized in that, In the main body of the mask, the shape retainer is folded into the main filter while overlapping with it.

4. The mask according to any one of claims 1 to 3, characterized in that, The shape retainer is generally butterfly-shaped, consisting of the elongated central portion and the folded portions and sides that extend outward from both ends.

5. The mask according to any one of claims 1 to 3, characterized in that, On the shape retainer, as the slit, a figure-eight shaped slit is provided on the portion along the side of the wearer's nose.

Images