Mask Case

Abstract

To provide a mask case in which a mask can be easily put in and taken out.SOLUTION: The mask case includes a main body portion that can change posture between a closed posture and an open posture, a plate-shaped flap portion, a first hinge shaft portion and a second hinge shaft portion that rotatably connect the flap portion and the main body portion. The flap portion rotates with the first hinge shaft portion and the second hinge shaft portion as rotation axes as the main body portion changes from the closed posture to the open posture, so that it changes from a lying posture lying down on the placement region side to a standing posture standing upright with respect to the placement region.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a mask case. [Background technology]

[0002] Conventionally, masks have been used to prevent the inhalation of various foreign substances such as viruses and pollen. Such masks for sanitary and medical use include types made of nonwoven fabric and types made of woven fabric such as gauze, cotton, hemp, and knit.

[0003] Recently, with the rise in awareness of infection prevention, the number of people wearing masks on a daily basis is increasing. In daily life, there are many occasions when we temporarily remove the mask, for example, when eating. In such cases, storing the mask in a pocket or the like and reusing it is considered unsanitary, so mask cases capable of temporarily storing masks have been used for some time.

[0004] For example, Patent Document 1 discloses a case in which a mask can be folded and stored. This mask case has an intervening plate portion that has been subjected to an antibacterial treatment and that can be placed between the folded mask pieces. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Registered Utility Model No. 3191947 [Patent Document 2] Registered Utility Model No. 3222103 Summary of the Invention [Problem to be solved by the invention]

[0006] In the above-mentioned mask case, when a user takes out or puts out a mask, the user needs to move the intermediate plate by hand, and there is room for improvement in terms of ease of taking out and putting in the mask.

[0007] The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide a mask case that allows a mask to be easily inserted and removed. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, the present invention employs the following configuration: That is, the present invention relates to a mask case for storing a mask, the mask case including a main body including plate-shaped first and second plate parts and a main body hinge shaft that rotatably connects the first and second plate parts, the main body being capable of changing its posture between a closed posture in which the mask is sandwiched between the first and second plate parts and an open posture in which the first and second plate parts are more open than the closed posture so that the mask can be taken in and out, and a position on one end side of the main body in an extending direction of the main body hinge shaft relative to an arrangement area, which is an area in the main body where the mask is arranged, and an arrangement area in which the mask is arranged. a plate-shaped flap portion provided at at least one of a position closer to the other end of the main body portion in the extending direction of the main body hinge shaft portion than a placement area, a first hinge shaft portion rotatably connecting the flap portion and the first plate portion, and a second hinge shaft portion rotatably connecting the flap portion and the second plate portion, the first hinge shaft portion and the second hinge shaft portion extending at an incline so as to move away from the placement area in the extending direction of the main body hinge shaft portion as they move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, and the flap portion changes position relative to the placement area in the extending direction of the main body hinge shaft portion as the main body hinge shaft portion moves from the closed position to the open position. The hinge shaft is characterized in that it rotates about the first hinge shaft and the second hinge shaft as rotation axes, from a lying down position toward the placement area to an upright position standing up relative to the placement area.

[0009] The present invention also relates to a mask case for storing a mask, the mask case including a main body including first and second plate-shaped plate portions and a main body hinge shaft that rotatably connects the first and second plate portions, the main body being capable of changing its posture between a closed posture in which the mask is sandwiched between the first and second plate portions and an open posture in which the first and second plate portions are more open than the closed posture so that the mask can be taken in and out, by rotating the first and second plate portions about the main body hinge shaft as a rotation shaft, and at least one of a position on one end side of the main body portion in an extending direction of the main body hinge shaft from an arrangement region, which is a region in the main body where the mask is arranged, and a position on the other end side of the main body portion in the extending direction of the main body hinge shaft from the arrangement region. and a plate-shaped flap portion provided on at least one of the main body hinge shafts, a first hinge shaft portion rotatably connecting the flap portion and the first plate portion, and a second hinge shaft portion rotatably connecting the flap portion and the second plate portion, wherein the first hinge shaft portion and the second hinge shaft portion extend at an incline away from the arrangement area in the extending direction of the main body hinge shaft portion as they move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, and the flap portion rotates about the first hinge shaft portion and the second hinge shaft portion as a rotation axis as the main body portion changes from the open position to the closed position, thereby changing from an upright position in which it stands up with respect to the arrangement area to a laid down position in which it lays down toward the arrangement area.

[0010] That is, the present invention employs a so-called V-fold structure for the flap portion. As a result, the flap portion rotates around the first hinge shaft portion and the second hinge shaft portion as the rotation axis in accordance with the change in posture caused by opening and closing of the main body portion, so that the flap portion is in a lying posture when the main body portion is in a closed posture and in an upright posture when the main body portion is in an open posture. According to the present invention, the user can insert and remove the mask from the mask case by simply performing a rotation operation to open and close the main body portion without touching the flap portion. This reduces the effort required for the user to insert and remove the mask from the mask case, making it easier to insert and remove the mask.

[0011] In the present invention, the main body portion can assume an independent posture between the closed posture and the open posture, capable of standing on its own with the one end of the main body portion grounded, and the flap portion may be provided at a position at least on the one end side of the main body portion.

[0012] In the present invention, the flap portion may be formed with a fastening portion capable of fastening a string of the mask.

[0013] Furthermore, in the present invention, the main body portion can assume an independent posture between the closed posture and the open posture in which it can stand on its own with the one end of the main body portion in contact with the ground, the flap portion is provided at least at a position on the other end side of the main body portion, and the flap portion provided at the other end side of the main body portion can change its posture to an inverted posture inverted to the opposite side of the main body portion across the first hinge shaft portion and the second hinge shaft portion when the main body portion is in the independent posture, and the flap portion provided at the other end side of the main body portion may be formed with the locking portion.

[0014] In the present invention, the main body may be made of polypropylene resin.

[0015] In the present invention, the flap portion may be provided at both the one end side and the other end side of the main body portion.

[0016] Furthermore, in the present invention, the flap portion provided on the one end side of the main body portion and the flap portion provided on the other end side may be formed to overlap in the laid-down posture, and the inclination angle of the first hinge shaft portion and the second hinge shaft portion connecting the lower flap portion and the main body portion in the overlapping state with respect to a direction perpendicular to the main body hinge shaft portion may be configured to be smaller than the inclination angle of the first hinge shaft portion and the second hinge shaft portion connecting the upper flap portion and the main body portion in the overlapping state with respect to a direction perpendicular to the main body hinge shaft portion. Effect of the Invention

[0017] According to the present invention, it is possible to provide a mask case that allows a mask to be easily inserted and removed. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of a mask case according to the first embodiment. [Diagram 2] FIG. 2 is a development view of the mask case according to the first embodiment. [Diagram 3] FIG. 3 is a plan view of the mask case when the main body according to the first embodiment is in a closed position. [Figure 4] FIG. 4 is a bottom view of the mask case when the main body is in a closed position in the first embodiment. [Diagram 5] 5A and 5B are cross-sectional views showing the state of the mask case and the mask when the main body is in a closed position in embodiment 1, where FIG. 5(a) is a cross-sectional view corresponding to the AA cross section in FIG. 3, and FIG. 5(b) is a cross-sectional view corresponding to the BB cross section in FIG. 3. [Figure 6] FIG. 6 is a plan view of the mask case when the main body is in an open position in the first embodiment. [Figure 7] FIG. 7 is a bottom view of the mask case when the main body is in an open position in the first embodiment. [Figure 8] 8A and 8B are cross-sectional views showing the state of the mask case and the mask when the main body is in an open position in embodiment 1, where FIG. 8(a) is a cross-sectional view corresponding to the CC section in FIG. 6, and FIG. 8(b) is a cross-sectional view corresponding to the DD section in FIG. 6. [Figure 9] FIG. 9 is a perspective view showing the mask case when the main body is in a self-supporting position in the first embodiment. [Figure 10] FIG. 10 is a perspective view of a mask case according to the second embodiment. [Figure 11] FIG. 11 is a development view of a mask case according to the second embodiment. [Figure 12]FIG. 12 is a perspective view showing the mask case in the second embodiment when the main body is in a self-supporting position. [Figure 13] FIG. 13 is a perspective view of a mask case according to the third embodiment. [Figure 14] FIG. 14 is a development view of a mask case according to the third embodiment. [Figure 15] FIG. 15 is a plan view of the mask case in the third embodiment when the main body is in a closed position. [Figure 16] FIG. 16 is a cross-sectional view that illustrates the state of the mask case and the mask when the main body is in an open position in the third embodiment, and corresponds to the E-E cross section of FIG. [Figure 17] FIG. 17 is a perspective view showing the mask case in the second embodiment when the main body is in a self-supporting position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of the mask case according to the present invention will be described with reference to the drawings. Note that the following embodiment is an example. In this specification, unless otherwise specified, the top and bottom as viewed in FIG. 2 are the "height direction (up and down direction)" of the mask case, the left and right as viewed in the same manner are the "width direction (left and right direction)" of the mask case, and the top and bottom as viewed in FIG. The thickness direction of the mask case is the "thickness direction" of the mask. The mask to be stored in the mask case according to the present invention is not particularly limited. The mask case can be applied to various masks, such as nonwoven masks made of nonwoven fabric, and cloth masks made of woven fabric such as gauze, cotton, hemp, and knit.

[0020] <Embodiment 1> FIG. 1 is a perspective view of a mask case 100 (hereinafter, case 100) according to the first embodiment. FIG. 1 shows a state in which a main body indicated by reference numeral 1 is in a position between a closed position and an open position described later. Reference numeral M1 in FIG. 1 indicates a mask. The mask M1 is a cloth mask. FIG. 2 is a development view of the case 100. The case 100 is configured as a case for storing the mask M1 worn by a user. The case 100 can be used to store not only cloth masks but also nonwoven masks.

[0021] [Overall configuration] As shown in Figs. 1 and 2, the case 100 is formed by welding a first sheet member B1 and a second sheet member B2 superimposed on the first sheet member B1. The first sheet member B1 and the second sheet member B2 are both flexible resin sheets made of polypropylene resin. The first sheet member B1 is a member that imparts a certain rigidity as a structure to the case 100, and is formed thicker than the second sheet member B2. The second sheet member B2 is a member in the case 100 that comes into contact with the mask, and is antibacterial treated. The material of the mask case according to the present invention is not limited to this.

[0022] As shown in FIGS. 1 and 2, the case 100 has a main body 1, a pair of flap portions 2, 2, a pair of first hinge shaft portions 31, 31, a pair of second hinge shaft portions 32, 32, a first fastener 41, and a second fastener .

[0023] FIG. 3 is a plan view of the case 100 when the main body 1 is in a closed position, and FIG. 4 is a bottom view of the case 100 when the main body 1 is in a closed position. FIG. 5 is a cross-sectional view showing the state of the case 100 and the mask M1 when the main body 1 is in a closed position, where FIG. 5(a) is a cross-sectional view corresponding to the AA section in FIG. 3, and FIG. 5(b) is a cross-sectional view corresponding to the BB section in FIG. 3. In FIG. 5(a) and FIG. 5(b), the mask M1 and the like are illustrated in a simplified manner for convenience. FIG. 6 is a plan view of the case 100 when the main body 1 is in an open position, and FIG. 7 is a bottom view of the case 100 when the main body 1 is in an open position. FIG. 8 is a cross-sectional view showing the state of the case 100 and the mask M1 when the main body 1 is in an open position, where FIG. 8(a) is a cross-sectional view corresponding to the CC section in FIG. 6, and FIG. 8(b) is a cross-sectional view corresponding to the DD section in FIG. 6. 8(a) and 8(b), for the sake of convenience, the mask M1 and the like are illustrated in a simplified manner. Each component of the case 100 will now be described.

[0024] [Main body 1] The main body 1 is a plate member that sandwiches the mask M1 by being folded together with the mask M1 as shown in FIG. 5(a). As shown in FIG. 2, the main body 1 is formed in a generally rectangular shape in a plan view. At the center position in the left-right direction of the main body 1, a main body hinge shaft 13 extending in the up-down direction is formed over the entire area of ​​the main body 1 in the up-down direction. When the case 100 is unfolded, the main body 1 has a left-right symmetrical shape with the main body hinge shaft 13 as an axis of symmetry. Here, among the parts divided by the main body hinge shaft 13, the left part in FIG. 2 is the first plate 11, and the right part is the second plate 12. Both the first plate 11 and the second plate 12 are formed in a plate shape having a substantially trapezoidal shape in a plan view, and the edges corresponding to the upper sides of the trapezoid are connected to each other via the main body hinge shaft 13. The first plate 11 and the second plate 12 are freely rotatable with respect to each other with the main body hinge shaft 13 as a rotation axis. As shown in FIG. 2, the upper edge of the first plate portion 11 is a first upper edge E11A, and the lower edge is The first lower edge E11B. Similarly, the upper edge of the second plate portion 12 is the second upper edge E12A, and the lower edge is the second lower edge E12B. The first upper edge E11A and the second upper edge E12A form the upper end E1A of the main body portion 1, and the first lower edge E11B and the second lower edge E12B form the lower end E1B of the main body portion 1. In this example, the upper end E1A corresponds to the "other end" according to the present invention, and the lower end E1B corresponds to the "one end" according to the present invention. Also, the left edge of the first plate portion 11, that is, the side edge opposite to the edge connected to the main body hinge shaft portion 13, is the first side edge E11C. Similarly, the right edge of the second plate portion 12 (the side edge opposite to the edge connected to the main body hinge shaft portion 13) is the second side edge E12C.

[0025] The main body 1 configured as above can open and close the first and second plates 11 and 12 by rotating the first and second plates 11 and 12 around the main hinge shaft 13 as a rotation axis. That is, the main body 1 can freely switch its posture between a closed posture in which the first and second plates 11 and 12 are folded in half so that they overlap, as shown in Figs. 3 to 5, and an open posture in which the first and second plates 11 and 12 are opened to an extent that the mask M1 can be taken in and out, as shown in Figs. 6 to 8. As shown in Fig. 5(a) and the like, the mask M1 can be sandwiched between the first and second plates 11 and 12 by the main body 1 being in the closed posture. As a result, the mask M1 is stored in the case 100. Here, as shown in FIG. 5(a), the surface of the first plate portion 11 facing the second plate portion 12 when the main body portion 1 is in the closed position, that is, the surface that contacts the mask M1, is the first inner surface S111, and the opposite surface (that is, the outer surface) is the first outer surface S112. Similarly, the surface of the second plate portion 12 facing the first plate portion 11 when the main body portion 1 is in the closed position is the second inner surface S121, and the opposite surface is the second outer surface S122. As shown in FIG. 2, the first inner surface S111 and the second inner surface S121 are formed of the second sheet member B2 having antibacterial properties. Also, the reference symbol A1 in FIG. 2, FIG. 6, etc. indicates the area in the main body portion 1 where the mask M1 is arranged. In this example, substantially the entire area of ​​the first inner surface S111 and the second inner surface S121 is the arrangement area A1. However, the present invention is not limited to this.

[0026] When the main body 1 changes from the closed position to the open position due to the relative rotation of the first plate 11 and the second plate 12, the state in which the mask M1 is sandwiched between the first plate 11 and the second plate 12 is released, and the mask M1 arranged in the arrangement area A1 can be taken out from the case 100, as shown in Fig. 6 etc. In this specification, the "open position" refers to a state in which the first plate and the second plate are open to an extent that the mask can be inserted and removed from the mask case, and the angle between the first plate and the second plate in the open position is not limited to the angle shown in Fig. 7 etc.

[0027] [Flap part 2] The pair of flap portions 2, 2 are plate-like members connected to the main body portion 1. The flap portion 2 is configured to assume a lying position lying down toward the arrangement area A1 side as shown in Fig. 5(b) when the main body portion 1 is in a closed position in response to a change in position caused by opening and closing the main body portion 1, and assume an upright position standing upright relative to the arrangement area A1 as shown in Fig. 8(b) when the main body portion 1 is in an open position.

[0028] 2, one of the pair of flap portions 2, 2 is provided at a position closer to the upper end E1A (i.e., upper side) than the arrangement area A1 in the main body portion 1, and the other is provided at a position closer to the lower end E1B (i.e., lower side) than the arrangement area A1. That is, the pair of flap portions 2, 2 are arranged above and below each other with the arrangement area A1 in between. Hereinafter, when the pair of flap portions 2, 2 are described while being distinguished from each other, the upper flap portion 2 will be referred to as the upper flap portion 2A, and the lower flap portion will be referred to as the lower flap portion 2B, and when the description is given without distinguishing between them, they will be simply referred to as the flap portions 2.

[0029] As shown in FIG. 2, the flap portion 2 is formed by a part of the second sheet member B2. and has antibacterial properties. The flap portion 2 is connected to the main body portion 1 so as to straddle the main body hinge shaft portion 13. The flap portion 2 includes a first cover portion 21 connected to the first plate portion 11, a second cover portion 22 connected to the second plate portion 12, and a cover hinge shaft portion 23 that rotatably connects the first cover portion 21 and the second cover portion 22. The first cover portion 21 and the second cover portion 22 are formed so as to be symmetrical with each other with the main body hinge shaft portion 13 (and the cover hinge shaft portion 23) as an axis of symmetry when the case 100 is in an unfolded state. The cover hinge shaft portion 23 is formed at the center position in the left-right direction of the flap portion 2, and extends so as to be coaxial with the main body hinge shaft portion 13 when the case 100 is in an unfolded state.

[0030] A pair of locking portions 24, 24 are formed on the upper flap portion 2A formed on the upper end E1A side of the main body portion 1. One of the pair of locking portions 24, 24 is formed on the first cover portion 21, and the other is formed on the second cover portion 22, and they are symmetrical with respect to the main body hinge shaft portion 13 (and the cover hinge shaft portion 23) as an axis of symmetry. The locking portion 24 is a slit formed on the tip of the upper flap portion 2A, and is capable of receiving the string M1a of the mask M1. The string M1a of the mask M1 is locked by receiving the string M1a of the mask M1 in the locking portion 24 (see FIG. 9).

[0031] [First hinge shaft 31, second hinge shaft 32] 2, one of the pair of first hinge shafts 31, 31 rotatably connects the first cover portion 21 of the upper flap portion 2A to the first plate portion 11 of the main body portion 1, and the other rotatably connects the first cover portion 21 of the lower flap portion 2B to the first plate portion 11 of the main body portion 1. Hereinafter, when the pair of first hinge shafts 31, 31 are described separately, the one connecting the upper flap portion 2A to the first plate portion 11 is referred to as the upper first hinge shaft portion 31A, and the one connecting the lower flap portion 2B to the first plate portion 11 is referred to as the lower first hinge shaft portion 31B, and when the description is given without distinguishing between them, they are simply referred to as the first hinge shaft portion 31. 2, one of the pair of second hinge shafts 32, 32 rotatably connects the second cover portion 22 of the upper flap portion 2A to the second plate portion 12 of the main body portion 1, and the other rotatably connects the second cover portion 22 of the lower flap portion 2B to the second plate portion 12 of the main body portion 1. Hereinafter, when the pair of second hinge shafts 32, 32 are described separately, the one connecting the upper flap portion 2A to the second plate portion 12 is referred to as the upper second hinge shaft portion 32A, and the one connecting the lower flap portion 2B to the second plate portion 12 is referred to as the lower second hinge shaft portion 32B, and when the description does not require a distinction between them, they are simply referred to as the second hinge shaft portion 32.

[0032] As shown in FIG. 2, the upper first hinge shaft 31A and the upper second hinge shaft 32A are formed at a position above the arrangement area A1. More specifically, the upper first hinge shaft 31A extends along the first upper end edge E11A of the first plate portion 11, and the upper second hinge shaft 32A extends along the second upper end edge E12A of the second plate portion 12. The upper first hinge shaft 31A and the upper second hinge shaft 32A are formed to be symmetrical with respect to the main body hinge shaft 13 as an axis of symmetry when the case 100 is unfolded. Here, the upper first hinge shaft 31A is inclined upward toward the left side, and the upper second hinge shaft 32A is inclined upward toward the right side. That is, the upper first hinge shaft 31A and the upper second hinge shaft 32A extend at an angle so as to move away from the arrangement area A1 in the extending direction of the main body hinge shaft 13 as they move away from the main body hinge shaft 13 in a direction perpendicular to the extending direction of the main body hinge shaft 13. Therefore, the upper first hinge shaft 31A and the upper second hinge shaft 32A form a substantial V shape. As a result, the upper flap portion 2A has a so-called V-fold structure.

[0033] 2, the lower first hinge shaft 31B and the lower second hinge shaft 32B are formed at a position lower than the arrangement area A1. More specifically, the lower first hinge shaft 31B extends along the first lower end edge E11B of the first plate portion 11, and the lower second hinge shaft 32B extends along the second lower end edge E12B of the second plate portion 12. The lower hinge shaft 31B and the lower second hinge shaft 32B are formed to be symmetrical with respect to the main body hinge shaft 13 when the case 100 is unfolded. Here, the lower first hinge shaft 31B is inclined downward toward the left side, and the lower second hinge shaft 32B is inclined downward toward the right side. In other words, the lower first hinge shaft 31B and the lower second hinge shaft 32B extend in a manner inclined away from the arrangement area A1 in the extending direction of the main body hinge shaft 13 as they move away from the main body hinge shaft 13 in a direction perpendicular to the extending direction of the main body hinge shaft 13, similar to the upper first hinge shaft 31A and the upper second hinge shaft 32A. Thereby, a substantial inverted V is formed by the lower first hinge shaft portion 31B and the lower second hinge shaft portion 32B. As a result, the lower flap portion 2B has a so-called V-fold structure, similar to the upper flap portion 2A.

[0034] Here, the inclination angle of the upper first hinge shaft 31A with respect to the direction perpendicular to the main body hinge shaft 13 (left-right direction) is θ1A, the inclination angle of the upper second hinge shaft 32A with respect to the left-right direction is θ2A, the inclination angle of the lower first hinge shaft 31B with respect to the left-right direction is θ1B, and the inclination angle of the lower second hinge shaft 32B with respect to the left-right direction is θ2B. In this example, θ1A, θ2A, θ1B, and θ2B are equal to each other. As a result, the angle where the imaginary line along the main body hinge shaft 13 and the imaginary line along the upper first hinge shaft 31A meet is greater than 90°, and although not shown, the angle where the imaginary line along the main body hinge shaft 13 and the imaginary line along the upper second hinge shaft 32A meet, the angle where the imaginary line along the main body hinge shaft 13 and the imaginary line along the lower first hinge shaft 31B meet, and the angle where the imaginary line along the main body hinge shaft 13 and the imaginary line along the lower second hinge shaft 32B meet are also similar.

[0035] [First fastener 41, second fastener 42] The first fastener 41 and the second fastener 42 are members that engage with each other when the main body 1 is in the closed position, as shown in FIG. 4 and the like, thereby restricting the relative rotation of the first plate 11 and the second plate 12 and maintaining the closed position of the main body 1. The first fastener 41 and the second fastener 42 are provided at positions symmetrical to the left and right with the main body hinge shaft 13 as an axis of symmetry, with the first fastener 41 provided near the first side edge E11C of the first plate 11 and the second fastener 42 provided near the second side edge E12C of the second plate 12. The first fastener 41 and the second fastener 42 in this example are formed as snap buttons that can engage with each other. However, the first fastener 41 and the second fastener 42 are not limited to snap buttons, and various structures can be adopted.

[0036] [Opening and closing operation] Hereinafter, a description will be given of the opening and closing operation for inserting and removing the mask M1 into and from the case 100. First, a description will be given of the operation for changing the main body 1 of the case 100 from the closed position shown in Figures 3 to 5 to the open position shown in Figures 6 to 8 in order to remove the mask M1 from the case 100.

[0037] As shown in FIG. 5(a), when the main body 1 is in the closed position, the mask M1 is sandwiched between the first plate 11 and the second plate 12 in a folded state. The main body 1 is folded in two at the main body hinge shaft 13, so that the size of the case 100 when the mask M1 is stored is compact. Also, as shown in FIG. 5(a), when the main body 1 is in the closed position, the flap 2 is folded in two so that the first cover 21 and the second cover 22 face each other. Also, as shown in FIG. 5(b), the flap 2 is in a fallen position on the arrangement area A1 side. More specifically, the first cover 21 of the upper flap 2A and the first cover 21 of the lower flap 2B overlap the first plate 11, and the second cover 22 of the upper flap 2A and the second cover 22 of the lower flap 2B overlap the second plate 12. When the flap portion 2 is in the lying position, the mask M1 placed in the placement area A1 is sandwiched between the main body portion 1 and the flap portion 2, and the mask M1 falls off the case 100. This prevents the mask M1 from being exposed to the air. In addition, the first inner surface S111 of the first plate portion 11, the second inner surface S121 of the second plate portion 12, and the flap portion 2, which come into contact with the mask M1, have antibacterial properties as described above, so that the mask M1 is kept clean. As described above, the mask M1 can be suitably stored in the case 100 by the main body portion 1 being in the closed position. In addition, the first fastener 41 and the second fastener 42 are engaged with each other to restrict the relative rotation of the first plate portion 11 and the second plate portion 12, and the main body portion 1 is maintained in the closed position. This prevents the main body portion 1 from opening unintentionally and the mask M1 from falling off.

[0038] To change the main body 1 from the closed position to the open position, first, the engagement between the first fastener 41 and the second fastener 42 is released. In this state, the first plate 11 and the second plate 12 are rotated relatively around the main body hinge shaft 13 in a direction in which the angle formed by the first plate 11 and the second plate 12 widens, whereby the main body 1 assumes the open position shown in Figs. 6 to 8.

[0039] Here, as described above, the flap portion 2 is connected to the first plate portion 11 via the first hinge shaft portion 31 in the first cover portion 21, and is connected to the second plate portion 12 via the second hinge shaft portion 32 in the second cover portion 22. Therefore, when the first plate portion 11 and the second plate portion 12 rotate relatively in the direction in which they open, the first cover portion 21 is pulled by the first plate portion 11, and the second cover portion 22 is pulled by the second plate portion 12. As a result, the first cover portion 21 and the second cover portion 22 rotate relatively around the cover hinge shaft portion 23 so that the flap portion 2 changes from a folded state to an open state as shown in FIG. 1. Also, as described above, the first hinge shaft portion 31 and the second hinge shaft portion 32 form an approximately V-shape, so that the flap portion 2 has a V-fold structure. Therefore, the first plate portion 11 and the second plate portion 12 rotate relatively in the direction in which the main body portion 1 opens, and tension acts in the direction in which the flap portion 2 rises up. As a result, as shown in FIG. 1, the flap portion 2 rotates in a direction in which it rises up with respect to the arrangement area A1, with the first hinge shaft portion 31 and the second hinge shaft portion 32 as the rotation axis, in accordance with the relative rotation of the first plate portion 11 and the second plate portion 12. As a result, as shown in FIG. 6 to FIG. 8, when the main body portion 1 is in the open position, the flap portion 2 is in the upright position. In other words, the flap portion 2 is in the upright position in conjunction with the opening operation of the main body portion 1 by the user only performing a rotation operation to change the main body portion 1 from the closed position to the open position without touching the flap portion 2.

[0040] As shown in Figs. 5 to 8, the state in which the mask M1 was sandwiched between the first plate 11 and the second plate 12 is released by the main body 1 being in the open position. At this time, the flap 2 is in the upright position, so the state in which the mask M1 was sandwiched between the main body 1 and the flap 2 is also released. This allows the user to touch the mask M1 placed in the placement area A1 without touching the flap 2. As described above, the user can easily remove the mask M1 from the case 100 by simply rotating the main body 1 from the closed position to the open position without touching the flap 2.

[0041] In order to store the mask M1 in the case 100, the mask M1 is arranged in the arrangement area A1 of the main body 1 in the open position so as to straddle the first plate 11 and the second plate 12 as shown in FIG. 6, and the first plate 11 and the second plate 12 are rotated relatively around the main body hinge shaft 13 to place the main body 1 in the closed position. The flap 2 rotates in a direction to collapse toward the arrangement area A1 with the first hinge shaft 31 and the second hinge shaft 32 as the rotation shaft in accordance with the relative rotation of the first plate 11 and the second plate 12. As a result, the flap 2 is brought into the collapsed position in conjunction with the closing operation of the main body 1 by the user only performing a rotation operation to bring the main body 1 from the open position to the closed position without touching the flap 2. As a result, as shown in FIGS. 3 to 5, the mask M1 is stored in the case 100 in a folded state by the first plate 11 and the second plate 12 of the main body 1 in the closed position. As described above, the user can easily store the mask M1 in the case 100 by simply rotating the main body 1 from the open position to the closed position without touching the flap portion 2.

[0042] [Standing function] Furthermore, the case 100 has a function of being self-supporting. FIG. 9 is a perspective view showing the case 100 when the main body 1 is in a self-supporting position. As described above, the main body 1 in this example is formed of polypropylene resin, and thus has a predetermined rigidity. Therefore, as shown in FIG. 9, the main body 1 can be in a self-supporting position in which it can stand on its own with its lower end E1B touching the ground. The opening degree of the first plate 11 and the second plate 12 in the self-supporting position is larger than the opening degree in the closed position and smaller than the opening degree in the open position. In other words, the main body 1 can be in a self-supporting position between the closed position and the open position.

[0043] 9, the upper flap portion 2A provided at a position on the upper end E1A side of the main body portion 1 can change its posture to an inverted posture in which it is inverted to the opposite side (i.e., upper side) of the main body portion 1 across the first hinge shaft portion 31 and the second hinge shaft portion 32 when the main body portion 1 is in a self-supporting posture. The mask M1 can be hung from the upper flap portion 2A by engaging the string M1a of the mask M1 with a pair of engaging portions 24, 24 formed on the upper flap portion 2A in the inverted posture. This allows the mask M1 to be held without storing the mask M1 in the case 100.

[0044] [Actions and Effects] As described above, in the case 100 according to the first embodiment, the body 1 can change its posture between a closed posture in which the mask M1 is sandwiched between the first plate 11 and the second plate 12, and an open posture in which the first plate 11 and the second plate 12 are more open than in the closed posture and the mask M1 can be taken in and out. The first hinge shaft 31 and the second hinge shaft 32 that rotatably connect the flap 2 and the body 1 extend at an angle so as to move away from the arrangement area A1 in the extending direction of the main hinge shaft 13 as they move away from the main hinge shaft 13 in a direction perpendicular to the extending direction of the main hinge shaft 13. In other words, the flap 2 has a V-fold structure. According to this, as the main body 1 changes from the closed position to the open position, the flap 2 changes from a fallen position in which it is fallen toward the arrangement area A1 side to an upright position in which it stands up relative to the arrangement area A1 by rotating about the first hinge shaft 31 and the second hinge shaft 32 as a rotation axis, and as the main body 1 changes from the open position to the closed position, the flap 2 changes from an upright position to a fallen position by rotating about the first hinge shaft 31 and the second hinge shaft 32 as a rotation axis. In other words, the flap 2 rotates about the first hinge shaft 31 and the second hinge shaft 32 as a rotation axis in accordance with the change in position due to the opening and closing of the main body 1 so as to take a fallen position in which it is fallen toward the arrangement area A1 side so as to sandwich the mask M1 between the flap 2 and the main body 1 when the main body 1 is in the closed position, and to take an upright position in which it stands up relative to the arrangement area A1 when the main body 1 is in the open position.

[0045] According to such a case 100, in the closed position in which the mask M1 is sandwiched, the main body 1 is folded in two at the main body hinge shaft 13, so that the size of the case 100 when the mask M1 is stored can be reduced. This allows the user to carry the case 100 in a pocket or the like, and the case 100 does not become bulky even when the case 100 is placed in a bag or the like. In other words, the portability of the case can be improved. In addition, when the main body 1 is in the closed position, the flap 2 is in a lying position so as to sandwich the mask M1 between the main body 1 and the flap 2, so that the mask M1 can be prevented from falling off the case 100. Furthermore, the flap 2 is configured to be in a lying position when the main body 1 is in the closed position and in an upright position when the main body 1 is in the open position in conjunction with the change in position due to the opening and closing of the main body 1, so that the user can put the mask M1 in and take it out of the case 100 only by performing a rotation operation for opening and closing the main body 1 without touching the flap 2. This reduces the amount of work required for the user to take the mask M1 in and out of the case 100, making it easier to take the mask M1 in and out. In addition, the user touches the flap portion 2 less frequently, reducing the risk of viruses, germs, and the like adhering to the flap portion 2.

[0046] In this embodiment, the flap portion 2 changes from a lying position to an upright position as the main body portion 1 changes from a closed position to an open position, and the flap portion 2 changes from an upright position to a lying position as the main body portion 1 changes from an open position to a closed position, but the present invention is not limited to this. The present invention may be configured to achieve at least one of the following: the flap portion changes from a lying position to an upright position as the main body portion changes from a closed position to an open position, and the flap portion changes from an upright position to a lying position as the main body portion changes from an open position to a closed position.

[0047] Moreover, the case 100 according to the first embodiment includes an upper flap portion 2A provided above the arrangement area A1 and a lower flap portion 2B provided below the arrangement area A1. As a result, when the main body 1 is in the closed position, the upper flap portion 2A prevents the mask M1 from falling off from the upper side of the main body 1, and the lower flap portion 2B prevents the mask M1 from falling off from the lower side. In other words, the mask M1 stored in the case 100 can be more reliably prevented from falling off. However, the present invention is not limited to this. The flap portion according to the present invention may be provided at least in one of a position on one end side of the main body from the arrangement area and a position on the other end side of the main body from the arrangement area in the extension direction of the main body hinge shaft portion.

[0048] In the case 100 according to the first embodiment, the main body 1 can assume a self-supporting posture between the closed posture and the open posture, with the lower end E1B in contact with the ground. The upper flap 2A provided at the position on the upper end E1A side of the main body 1 can change its posture to an inverted posture inverted to the opposite side of the main body 1 across the first hinge shaft 31 and the second hinge shaft 32 when the main body 1 is in the self-supporting posture, and a locking portion 24 capable of locking the string M1a of the mask M1 is formed on the upper flap 2A.

[0049] According to this, the string M1a of the mask M1 is engaged with each of the pair of engagement parts 24, 24 of the upper flap part 2A in the inverted position, so that the mask M1 can be hung from the upper flap part 2A. This allows the mask M1 to be held without storing the mask M1 in the case 100. In other words, the case 100 can be used as a stand for temporarily placing the mask M1 when the mask M1 is temporarily removed. For example, when eating out, the mask M1 can be held in the case 100 that stands upright on the table without having to take the trouble to store the mask M1 in the case 100. At this time, the mask M1 is held without touching anything other than the case 100, so that the risk of the mask M1 becoming dirty can be reduced. In addition, since the mask M1 is held without being stored inside the case 100, the mask M1 can be dried to maintain its cleanliness in an appropriate manner. Due to such advantages, the washed mask M1 may be dried by being held in the case 100 that stands upright.

[0050] In the case 100 according to the first embodiment, the mask M1 may be held by sandwiching the mask M1 between the main body 1 in a self-supporting position and the lower flap portion 2B, without using the locking portion 24 of the upper flap portion 2A. In this case, too, the mask M1 can be held without touching anything other than the case 100.

[0051] From the viewpoint of holding the mask M1 in the self-supporting case 100, when the mask M1 is held using the locking portion 24 of the upper flap portion 2A, the lower flap portion 2B is not an essential component, and at least the upper flap portion 2A is sufficient. The configuration in which the mask is suspended and held using the locking portion 24 of the upper flap portion 2A is suitable for holding a thicker cloth mask such as the mask M1 compared to a nonwoven mask. Also, holding the mask M1 by sandwiching it between the main body portion 1 in a self-supporting position and the lower flap portion 2B is also suitable. In this case, the upper flap portion 2A is not an essential component, and it is sufficient that at least the lower flap portion 2B is provided.

[0052] In this example, the upper end E1A corresponds to the "other end" according to the present invention, and the lower end E1B corresponds to the "one end" according to the present invention, but the present invention is not limited thereto, and the upper end E1A may be the "one end" according to the present invention, and the lower end E1B may be the "other end" according to the present invention. For example, the main body 1 may be capable of standing on its own with the upper end E1A on the ground in the self-supporting position, or the lower flap portion 2B may be formed with a locking portion 24, and the string M1a of the mask M1 may be locked to the locking portion 24 of the lower flap portion 2B in the inverted position to hold the mask M1.

[0053] In addition, in the first embodiment, the main body 1 is made of polypropylene resin, which provides the main body 1 with a predetermined rigidity that enables the main body 1 to stand in a self-supporting position. However, the material of the main body of the present invention is not limited to this.

[0054] <Embodiment 2> FIG. 10 is a perspective view of a mask case 200 (hereinafter, case 200) according to embodiment 2. FIG. 10 shows a state in which the main body 1 is in a position between the closed position and the open position. The reference character M2 in FIG. 10 indicates a mask. The mask M2 is a nonwoven mask. FIG. 11 is a development view of the case 200. FIG. 12 is a perspective view showing the case 200 when the main body 1 is in a self-supporting position. The case 200 can be used to store not only nonwoven masks but also cloth masks. The case 200 according to embodiment 2 has the same technical features as the case 100 according to embodiment 1. Therefore, the mask M2 can be easily put in and taken out of the case 200.

[0055] 10 and other figures, case 200 differs from case 100 mainly in that a pair of locking portions 224, 224 is formed on lower flap portion 2B. Hereinafter, case 200 according to embodiment 2 will be described, focusing on the differences from case 100 according to embodiment 1 described in FIGS. 1 to 9, and detailed descriptions of the same points as case 100 will be omitted by assigning the same reference numerals thereto.

[0056] 10 and other drawings, a pair of locking portions 224, 224 that are slits capable of receiving the string M2a of the mask M2 are formed at the tip of the lower flap portion 2B of the case 200. One of the pair of locking portions 224, 224 is formed in the first cover portion 21, and the other is formed in the second cover portion 22, and these are symmetrical with respect to the main body hinge shaft portion 13 (and the cover hinge shaft portion 23) as the axis of symmetry. The locking portion 224 receives the string M2a of the mask M2, thereby locking the string M2a.

[0057] In the case 200, as shown in FIG. 10, the mask M1 is arranged in the arrangement area A1 of the main body 1 so as to straddle the first plate 11 and the second plate 12, and the string M2a of the mask M2 is locked to each of the pair of locking parts 224, 224, and the main body 1 is closed to store the mask M2. Since the string M2a of the mask M2 is locked by the locking part 224, it is possible to suppress problems such as the position of the mask M2 being shifted or the shape of the mask M2 being distorted in the case 200. Such a method of using the locking part 224 is suitable for storing a nonwoven mask such as M2. However, the string of the mask may be locked to the locking part when storing a cloth mask. For example, in the case 100 according to the above-mentioned embodiment 1, the main body 1 may be closed to store the mask M1 with the string M1a of the mask M1 locked to each of the pair of locking parts 24, 24. 11, the pair of locking portions 224, 224 open toward the center in the left-right direction, that is, toward the main body hinge shaft portion 13. As a result, the locking portion 224 formed on the first cover portion 21 prevents the string M2a from shifting to the left, and the locking portion 224 formed on the second cover portion 22 prevents the string M2a from shifting to the right. As a result, it is possible to effectively prevent the mask M2 from shifting in the left-right direction.

[0058] As shown in FIG. 12, in the case 200 according to the second embodiment, the main body 1 can be in a self-supporting position between the closed position and the open position with the lower end E1B on the ground, and the lower flap portion 2B is provided at the position of the lower end E1B side of the main body 1. As a result, the mask M2 can be held by sandwiching it between the main body 1 in the self-supporting position and the lower flap portion 2B. As a result, the case 200 can be used as a stand for temporarily placing the mask M2. As shown in FIG. 12, when the main body 1 is in the self-supporting position, the string M2a of the mask M2 may be engaged with the engagement portion 224. As a result, the mask M2 can be held more reliably. Note that in the case 200, the main body 1 can be in a self-supporting position with the upper end E1A on the ground, and the string M2a of the mask M2 may be engaged with the engagement portion 224 of the lower flap portion 2B in the inverted position to hold the mask M2.

[0059] <Embodiment 3> FIG. 13 is a perspective view of a mask case 300 (hereinafter, case 300) according to the third embodiment. In FIG. 13, the state in which the main body 1 is in a position between the closed position and the open position is shown. FIG. 14 is a development view of the case 300. FIG. 15 is a plan view of the case 300 when the main body 1 is in the closed position. FIG. 16 is a cross-sectional view that shows the state of the case 300 and the mask M2 when the main body 1 is in the closed position, and corresponds to the EE cross section of FIG. 15. In FIG. 16, the mask M2 and the like are illustrated in a simplified manner for convenience. FIG. 17 is a perspective view showing the case 300 when the main body 1 is in a self-supporting position. The case 300 can be used to store not only nonwoven masks such as the mask M2, but also cloth masks. The case 300 according to the third embodiment has the same technical features as the case 100 according to the first embodiment. Therefore, the mask M2 can be easily put in and taken out of the case 300.

[0060] Here, as shown in Fig. 13 etc., case 300 differs from case 100 mainly in that a first folded portion 25 and a second folded portion 26, in which a locking portion 324 is formed, are provided on a lower flap portion 2B. Also, a main body portion 1 of case 300 has a shorter vertical width than the above-mentioned cases 100 and 200. Hereinafter, case 300 according to embodiment 3 will be described, focusing on differences from case 100 according to embodiment 1 described in Figs. 1 to 9, and detailed description will be omitted by assigning the same reference numerals to the same points as case 100.

[0061] As shown in FIG. 13 and other figures, the first folded portion 25 is formed by folding back the tip of the first cover portion 21 of the lower flap portion 2B, and the second folded portion 26 is formed by folding back the tip of the second cover portion 22 of the lower flap portion 2B. The first folded portion 25 and the second folded portion 26 are formed of a part of the second sheet member B2 and have antibacterial properties. In addition, a substantially U-shaped slit is formed in each of the first folded portion 25 and the second folded portion 26, thereby providing a locking portion 324. The locking portion 324 is an elastic piece formed of a part of the second sheet member B2. The pair of locking portions 324 are symmetrical with respect to the main body hinge shaft portion 13 (and the cover hinge shaft portion 23) as the axis of symmetry, and the string M2a of the mask M2 is hooked to the locking portion 324 to lock the string M2a.

[0062] 13, in the case 300, the mask M2 is placed so as to straddle the placement area A1 of the main body 1 and the first cover portion 21 and the second cover portion 22, and the mask M2 is inserted between the first cover portion 21 and the first folded-back portion 25 and between the second cover portion 22 and the second folded-back portion 26, and the strings M2a of the mask M2 are engaged with each of the pair of engagement portions 324, 324, and the main body 1 is placed in a closed position to store the mask M2. With the mask M2 sandwiched between the first cover portion 21 and the first folded-back portion 25 and the mask M2 sandwiched between the second cover portion 22 and the second folded-back portion 26, the lower flap portion 2B is moved to the first hinge shaft portion 31 and the second hinge shaft portion 32. As the mask M2 rotates about the pivot portion 32 as a rotation axis and assumes a laid-down position, the mask M2 is folded by the main body portion 1 and the lower flap portion 2B as shown in Fig. 16. In addition, the mask M2 is also folded by the first plate portion 11 and the second plate portion 12 of the main body portion 1 that is in the closed position, and the mask M2 is stored in the case 300 in a four-folded state.

[0063] According to such a case 300, the string M2a of the mask M2 is locked by the locking portion 324, and thus, problems such as the mask M2 being displaced or losing its shape in the case 300 can be suppressed. Here, as shown in FIG. 14, the pair of locking portions 324, 324 extend toward the center in the left-right direction, that is, toward the main body hinge shaft portion 13. As a result, the locking portion 324 formed on the first folded portion 25 restricts the string M2a from shifting leftward, and the locking portion 324 formed on the second folded portion 26 restricts the string M2a from shifting rightward. As a result, the mask M2 can be suitably restricted from shifting leftward.

[0064] Furthermore, by storing the mask M2 in a folded state in the case 300, the overall size can be made more compact than the case 100 or the case 200. As a result, the portability of the case can be further improved.

[0065] Here, as shown in FIG. 16, in the case 300, the upper flap portion 2A and the lower flap portion 2B are formed so as to overlap in the fallen posture. More specifically, the upper flap portion 2A overlaps the lower flap portion 2B. As shown in FIG. 14, in the case 300, the inclination angles θ1B and θ2B of the lower first hinge shaft portion 31B and the lower second hinge shaft portion 32B connecting the lower lower flap portion 2B and the main body portion 1 in the overlapping state are smaller than the inclination angles θ1A and θ2B of the upper first hinge shaft portion 31A and the upper second hinge shaft portion 32A connecting the upper upper flap portion 2A located on the upper side in the overlapping state and the main body portion 1. More specifically, θ1A=θ2A>θ1B=θ2B. As a result, when the main body 1 changes from the open position to the closed position, the timing of rotation of the lower flap portion 2B and the upper flap portion 2A about the first hinge shaft 31 and the second hinge shaft 32 can be shifted, and the lower flap portion 2B can be brought to the laid-down position before the upper flap portion 2A. As a result, the upper flap portion 2A and the lower flap portion 2B are prevented from interfering with each other while changing from the upright position to the laid-down position, and the mask M2 can be stored smoothly.

[0066] As shown in FIG. 17, in the case 300 according to the third embodiment, the main body 1 can be in a self-supporting position between the closed position and the open position with the upper end E1A on the ground. This allows the mask M2 to be placed on the upper flap portion 2A and the first folded portion 25 and the second folded portion 26 of the lower flap portion 2B in the inverted position to clamp the mask M2, thereby holding the mask M2. This allows the case 300 to be used as a stand for temporarily placing the mask M2. In addition, when the main body 1 is in the self-supporting position, the string M2a of the mask M2 may be engaged with the engaging portion 324. This allows the mask M2 to be held more reliably. In the case 300, the main body 1 may be capable of standing on its own with the lower end E1B on the ground in the self-supporting position.

[0067] <Other> Although the embodiment of the mask case according to the present invention has been described above, the present invention is not limited to the above embodiment and can be modified as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0068] 1. Main body 11...1st plate part 12...Second plate part 13 Main body hinge shaft 2. Flap section 31... First hinge shaft 32...Second hinge shaft 100, 200, 300... Mask case M1, M2... Mask

Claims

1. A mask case for storing a mask, a main body including a plate-like first plate and a second plate, and a main body hinge shaft that rotatably connects the first plate and the second plate, wherein the first plate and the second plate rotate about the main body hinge shaft as a rotation axis, so that the main body can change its posture between a closed posture in which the mask is sandwiched between the first plate and the second plate, and an open posture in which the first plate and the second plate are more open than the closed posture so that the mask can be inserted or removed; a plate-shaped flap portion provided at least at a position on one end side of the main body portion from a placement area in which the mask is placed in the main body portion in the extending direction of the main body hinge shaft portion and a position on the other end side of the main body portion from the placement area in the extending direction of the main body hinge shaft portion; a first hinge shaft portion that rotatably connects the flap portion and the first plate portion; a second hinge shaft portion that rotatably connects the flap portion and the second plate portion; Equipped with The main body portion can be in an independent posture between the closed posture and the open posture, the independent posture being capable of standing on its own with the one end portion of the main body portion grounded, the first hinge shaft portion and the second hinge shaft portion extend at an incline so as to move away from the arrangement region in the extending direction of the main body hinge shaft portion as the first hinge shaft portion and the second hinge shaft portion move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, the flap portion rotates about the first hinge shaft portion and the second hinge shaft portion as a rotation axis as the main body portion changes from the closed posture to the open posture, thereby changing from a lying down posture toward the arrangement area to an upright posture in which the flap portion stands up relative to the arrangement area, The flap portion provided at a position on the one end side of the main body portion is formed with a locking portion capable of locking a string of the mask when the main body portion is in the self-supporting posture. Mask case.

2. A mask case for storing a mask, a main body including a plate-like first plate and a second plate, and a main body hinge shaft that rotatably connects the first plate and the second plate, wherein the first plate and the second plate rotate about the main body hinge shaft as a rotation axis, so that the main body can change its posture between a closed posture in which the mask is sandwiched between the first plate and the second plate, and an open posture in which the first plate and the second plate are more open than the closed posture so that the mask can be inserted or removed; a plate-shaped flap portion provided at least at a position on one end side of the main body portion from a placement area in which the mask is placed in the main body portion in the extending direction of the main body hinge shaft portion and a position on the other end side of the main body portion from the placement area in the extending direction of the main body hinge shaft portion; a first hinge shaft portion that rotatably connects the flap portion and the first plate portion; a second hinge shaft portion that rotatably connects the flap portion and the second plate portion; Equipped with The main body portion can be in an independent posture between the closed posture and the open posture, the independent posture being capable of standing on its own with the one end portion of the main body portion grounded, the first hinge shaft portion and the second hinge shaft portion extend at an incline so as to move away from the arrangement region in the extending direction of the main body hinge shaft portion as the first hinge shaft portion and the second hinge shaft portion move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, As the main body portion changes from the open position to the closed position, the flap portion rotates about the first hinge shaft portion and the second hinge shaft portion as a rotation axis, thereby changing from an upright position in which the flap portion stands up relative to the arrangement area to a laid-down position in which the flap portion lays down toward the arrangement area, The flap portion provided at a position on the one end side of the main body portion is formed with a locking portion capable of locking a string of the mask when the main body portion is in the self-supporting posture. Mask case.

3. A mask case for storing a mask, a main body including a plate-like first plate and a second plate, and a main body hinge shaft that rotatably connects the first plate and the second plate, wherein the first plate and the second plate rotate about the main body hinge shaft as a rotation axis, so that the main body can change its posture between a closed posture in which the mask is sandwiched between the first plate and the second plate, and an open posture in which the first plate and the second plate are more open than the closed posture so that the mask can be inserted or removed; a plate-shaped flap portion provided at least at a position on the other end side of a position on one end side of the main body portion in an extension direction of the main body hinge shaft portion from a placement area, which is an area in the main body portion where the mask is placed, and a position on the other end side of the main body portion in an extension direction of the main body hinge shaft portion from the placement area; a first hinge shaft portion that rotatably connects the flap portion and the first plate portion; a second hinge shaft portion that rotatably connects the flap portion and the second plate portion; Equipped with The main body portion can be in an independent posture between the closed posture and the open posture, the independent posture being capable of standing on its own with the one end portion of the main body portion grounded, the first hinge shaft portion and the second hinge shaft portion extend at an incline so as to move away from the arrangement region in the extending direction of the main body hinge shaft portion as the first hinge shaft portion and the second hinge shaft portion move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, the flap portion rotates about the first hinge shaft portion and the second hinge shaft portion as a rotation axis as the main body portion changes from the closed posture to the open posture, thereby changing from a lying down posture toward the arrangement area to an upright posture in which the flap portion stands up relative to the arrangement area, The flap portion provided at the other end side of the main body portion is formed with a locking portion that can hang the mask by locking a string of the mask when the main body portion is in the self-supporting position. Mask case.

4. A mask case for storing a mask, a main body including a plate-like first plate and a second plate, and a main body hinge shaft that rotatably connects the first plate and the second plate, wherein the first plate and the second plate rotate about the main body hinge shaft as a rotation axis, so that the main body can change its posture between a closed posture in which the mask is sandwiched between the first plate and the second plate, and an open posture in which the first plate and the second plate are more open than the closed posture so that the mask can be inserted or removed; a plate-shaped flap portion provided at least at a position on the other end side of a position on one end side of the main body portion in an extension direction of the main body hinge shaft portion from a placement area, which is an area in the main body portion where the mask is placed, and a position on the other end side of the main body portion in an extension direction of the main body hinge shaft portion from the placement area; a first hinge shaft portion that rotatably connects the flap portion and the first plate portion; a second hinge shaft portion that rotatably connects the flap portion and the second plate portion; Equipped with The main body portion can be in an independent posture between the closed posture and the open posture, the independent posture being capable of standing on its own with the one end portion of the main body portion grounded, the first hinge shaft portion and the second hinge shaft portion extend at an incline so as to move away from the arrangement region in the extending direction of the main body hinge shaft portion as the first hinge shaft portion and the second hinge shaft portion move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, As the main body portion changes from the open position to the closed position, the flap portion rotates about the first hinge shaft portion and the second hinge shaft portion as a rotation axis, thereby changing from an upright position in which the flap portion stands up relative to the arrangement area to a laid-down position in which the flap portion lays down toward the arrangement area, The flap portion is provided at the other end of the main body portion. A locking portion is formed so that the mask can be hung by locking a string of the mask when the mask is in a self-supporting position. Mask case.

5. A mask case for storing a mask, a main body including a plate-like first plate and a second plate, and a main body hinge shaft that rotatably connects the first plate and the second plate, wherein the first plate and the second plate rotate about the main body hinge shaft as a rotation axis, so that the main body can change its posture between a closed posture in which the mask is sandwiched between the first plate and the second plate, and an open posture in which the first plate and the second plate are more open than the closed posture so that the mask can be inserted or removed; a plate-shaped flap portion provided at least one of a position on one end side of the main body portion in the extending direction of the main body hinge shaft portion from a placement area, which is an area in the main body portion where the mask is placed, and a position on the other end side of the main body portion in the extending direction of the main body hinge shaft portion from the placement area; a first hinge shaft portion that rotatably connects the flap portion and the first plate portion; a second hinge shaft portion that rotatably connects the flap portion and the second plate portion; Equipped with the first hinge shaft portion and the second hinge shaft portion extend at an incline so as to move away from the arrangement region in the extending direction of the main body hinge shaft portion as the first hinge shaft portion and the second hinge shaft portion move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, the flap portion rotates about the first hinge shaft portion and the second hinge shaft portion as a rotation axis as the main body portion changes from the closed posture to the open posture, thereby changing from a lying down posture toward the arrangement area to an upright posture in which the flap portion stands up relative to the arrangement area, The flap portion includes a first cover portion connected to the first plate portion, a second cover portion connected to the second plate portion, a first folded-back portion formed by folding back a tip of the first plate portion, and a second folded-back portion formed by folding back a tip of the second cover portion. having The mask can be stored in a folded-in-four state by inserting the mask between the first cover portion and the first folded portion and between the second cover portion and the second folded portion, and placing the mask across the placement area of ​​the main body portion and the first cover portion and the second cover portion, and then placing the main body portion in the closed position. Mask case.

6. A mask case for storing a mask, a main body including a plate-like first plate and a second plate, and a main body hinge shaft that rotatably connects the first plate and the second plate, wherein the first plate and the second plate rotate about the main body hinge shaft as a rotation axis, so that the main body can change its posture between a closed posture in which the mask is sandwiched between the first plate and the second plate, and an open posture in which the first plate and the second plate are more open than the closed posture so that the mask can be inserted or removed; a plate-shaped flap portion provided at least one of a position on one end side of the main body portion in the extending direction of the main body hinge shaft portion from a placement area, which is an area in the main body portion where the mask is placed, and a position on the other end side of the main body portion in the extending direction of the main body hinge shaft portion from the placement area; a first hinge shaft portion that rotatably connects the flap portion and the first plate portion; a second hinge shaft portion that rotatably connects the flap portion and the second plate portion; Equipped with the first hinge shaft portion and the second hinge shaft portion extend at an incline so as to move away from the arrangement region in the extending direction of the main body hinge shaft portion as the first hinge shaft portion and the second hinge shaft portion move away from the main body hinge shaft portion in a direction perpendicular to the extending direction of the main body hinge shaft portion, The flap portion is configured to move in the first direction as the main body portion moves from the open position to the closed position. By rotating about the hinge shaft and the second hinge shaft as a rotation axis, the hinge shaft is brought from an upright position in which it stands with respect to the arrangement area to a laid-down position in which it is laid down toward the arrangement area, The flap portion includes a first cover portion connected to the first plate portion, a second cover portion connected to the second plate portion, a first folded-back portion formed by folding back a tip of the first plate portion, and a second folded-back portion formed by folding back a tip of the second cover portion. having The mask can be stored in a folded-in-four state by inserting the mask between the first cover portion and the first folded portion and between the second cover portion and the second folded portion, and placing the mask across the placement area of ​​the main body portion and the first cover portion and the second cover portion, and then placing the main body portion in the closed position. Mask case.

Images