Sound leakage suppression mask

Abstract

To provide a sound leakage suppression mask capable of suppressing an electric component from being adversely affected by moisture in the exhalation of a user, and improving the mountability of a mask body.SOLUTION: A sound leakage suppression mask comprises a mask body for covering the mouth of a user. In a base part 15 of the mask body, a first space 23 which is opened toward the mouth of the user and into which the exhalation of the user enters, second spaces 24 and 25 adjacent to the first space 23 in a right-left direction, and a third space 26 adjacent to the first space 23 in an upper-lower direction are formed. The first space 23 is separated from the second space 24 by a partition wall 27, is separated from the second space 25 by a partition wall 28, and is separated from the third space 26 by a partition wall 29. A substrate 71 is housed in the second space 24, a battery 73 is housed in the second space 25, and a substrate 72 and a microphone 81 are housed in the third space 26.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a sound leakage suppression mask that suppresses the sound emitted by a user from leaking to the outside. [Background technology]

[0002] Patent Document 1 discloses a mask with a sound leakage suppression function that suppresses the leakage of a user's voice to the outside. This mask includes a mask body that covers the user's mouth. The mask body has an opening facing the user's mouth and an internal space into which the user's voice enters, and the user's voice is attenuated in the internal space.

[0003] The mask of Patent Document 1 also has a built-in microphone in the internal space of the mask body that detects the user's voice. In this case, the microphone can be used to talk to others. The mask body also has a built-in battery, which can power the microphone. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2022-153249 Summary of the Invention [Problem to be solved by the invention]

[0005] However, Patent Document 1 does not state where the battery is located in the mask body. Therefore, in the configuration of Patent Document 1, it is conceivable to place the battery in the internal space of the mask body, for example. However, since the user's breath enters the internal space along with the user's voice, in this case, moisture contained in the breath may adversely affect the battery.

[0006] Furthermore, in the above-mentioned Patent Document 1, it is also conceivable to place the battery in front of the internal space of the mask body. However, in that case, the mask body needs to be long in the front-to-rear direction, and the battery would be placed at the front end of the mask body that is long in the front-to-rear direction. This may cause the front side of the mask body to easily fall downward when the mask body is worn on the face, which may make the mask body difficult to wear.

[0007] The above-mentioned problem does not only occur when a battery is provided in the mask body, but can also occur when electrical components other than a battery, such as a circuit board, are provided in the mask body.

[0008] The present invention has been made in consideration of the above circumstances, and its main object is to provide a sound leakage suppression mask that can prevent electrical components from being adversely affected by moisture in the user's breath and that also improves the wearability of the mask body. [Means for solving the problem]

[0009] In order to achieve the above object, the sound leakage suppression mask of the present invention comprises: A sound leakage suppression mask that suppresses the sound emitted by a user from leaking to the outside, a mask body that covers the user's mouth; The mask body is formed with a first space that opens toward the user's mouth and into which the user's exhaled air enters, and an adjacent space that is adjacent to the first space in the left-right direction or the up-down direction, a partition wall is provided between the first space and the adjacent space to separate the two spaces; The adjacent space accommodates electrical components. [Effects of the Invention]

[0010] According to the present invention, the mask body is formed with a first space that opens toward the user's mouth and through which the user's exhaled breath enters, and an adjacent space that is adjacent to the first space in the left-right or up-down direction. The adjacent space is separated from the first space by a partition wall, which prevents exhaled breath from flowing from the first space into the adjacent space. Electrical components are housed in the adjacent space. In this case, it is possible to prevent the electrical components from being adversely affected by moisture in the exhaled breath.

[0011] Furthermore, since the first space and the adjacent space are adjacent to each other in the left-right direction or the up-down direction, the length of the mask body in the front-to-back direction can be prevented from increasing. This makes it difficult for the mask body to tilt downward when worn on the face, resulting in good wearability of the mask body. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 2 is a front view of the sound leakage suppression mask. [Figure 2] FIG. 2 is a perspective view of the mask body as seen from the front. [Figure 3] FIG. 2 is a perspective view of the mask body as seen from the rear. [Figure 4] FIG. 2 is a perspective view of the base portion as seen from the rear. [Figure 5] 1A and 1B are perspective views showing a state in which a lid portion and a cover portion are attached to a base portion, where FIG. 1A is a view from diagonally above, and FIG. 1B is a view from diagonally below. [Figure 6] 1(a) is a perspective view of the face rest portion seen from behind, and FIG. 1(b) is a perspective view of the face rest portion seen from the front. [Figure 7] FIG. 2 is an enlarged rear view showing the vicinity of the recessed portion of the mask body. [Figure 8] FIG. 2 is a front view showing the sound leakage suppression mask in a worn state. [Figure 9] FIG. 4 is a rear view showing the electrical components provided in the base portion. [Figure 10] FIG. 2(a) is a perspective view showing a sound guide unit attached to a partition wall, and FIG. 2(b) is a perspective view of the sound guide unit. [Figure 11] FIG. 2 is a perspective view of the mask body as seen from below. [Figure 12] FIG. 10 is a rear view showing the state in which earphones are connected to the earphone terminal of the mask body. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sound leakage suppression mask according to one embodiment of the present invention will now be described with reference to the drawings.

[0014] 1, the sound leakage reduction mask 10 includes a mask body 11 that covers the user's mouth, a band 12 for attaching the mask body 11 to the user's face, and a pair of wired earphones 13 that are attached to the user's ears. The mask body 11 has a horizontally elongated shape that extends in the left-right direction, and covers only the user's mouth but not the nose (see also FIG. 8).

[0015] The bands 12 are string-like or belt-like and are attached to both left and right ends of the mask body 11. The bands 12 are hung around the user's ears or the back of the head, thereby attaching the mask body 11 to the user's face. The bands 12 may be hung around both the user's ears and the back of the head. In the following description, the front-rear direction, left-right direction, and up-down direction are defined based on the state in which the mask body 11 is worn on the user's face.

[0016] As shown in FIGS. 1 to 3, the mask body 11 has a base portion 15 that forms the front surface of the mask body 11, and a face support portion 16 that is provided behind the base portion 15 and that fits closely to the user's face. The base portion 15 is made of a resin material. As shown in FIG. 4, the base portion 15 has a front plate portion 17 that forms the front surface of the mask body 11, and a ring-shaped surrounding wall portion 18 that extends rearward from the periphery of the front plate portion 17 (see also FIG. 9). The base portion 15 has a bilaterally symmetrical configuration.

[0017] The front plate 17 is formed in the shape of an oval plate extending in the left-right direction. More specifically, both left-right ends of the front plate 17 are slightly curved rearward. The periphery of the front plate 17 extends outward beyond the surrounding wall 18, and this extending portion forms an annular flange 19. Both left-right ends of the flange 19 are provided with mounting holes 21 as mounting portions for attaching the band 12.

[0018] The surrounding wall 18 is formed in an oval ring shape extending in the left-right direction. The surrounding wall 18 has an upper wall 18a that forms the upper surface of the surrounding wall 18, a lower wall 18b that forms the lower surface of the surrounding wall 18, and a pair of left and right side wall portions 18c that connect the upper wall portion 18a and the lower wall portion 18b in an arc shape. The lower wall portion 18b has a notch 22 (see also FIG. 5(b)) that is cut out over the entire left-right area thereof.

[0019] The base 15 has a plurality of spaces 23 to 26 defined by partition walls 27 to 29 within the interior space surrounded by the peripheral wall 18. These spaces 23 to 26 are open to the rear. The spaces 23 to 26 include a first space 23 located in the center of the base 15 in the left-right direction, a pair of second spaces 24 and 25 located on either side of the first space 23 in the left-right direction, and a third space 26 located below the first space 23.

[0020] The first space 23 is adjacent to each of the second spaces 24, 25 in the left-right direction, and adjacent to the third space 26 in the up-down direction. Each of the second spaces 24, 25 extends downward from the first space 23, and the extending portion is adjacent to the third space 26 in the left-right direction. The third space 26 is an elongated space extending in the left-right direction, and its length in the left-right direction is the same as that of the first space 23.

[0021] The first space 23 is a space that opens toward the user's mouth. The first space 23 is designed to receive the voice uttered by the user. An uneven region 61 formed in an uneven shape is provided on the bottom surface of the first space 23. The uneven region 61 is made of a gypton structure. The voice of the user that enters the first space 23 is absorbed by the uneven region 61. Although not shown, a sound-absorbing material is provided in the first space 23, and the user's voice is also absorbed by this sound-absorbing material. The user's exhaled air that enters the first space 23 is led to the outside of the mask body 11 through an outlet path 63 provided in the base portion 15.

[0022] The base portion 15 is provided with a plurality of partition walls 27-29 that separate the spaces 23-26. These partition walls 27-29 extend rearward from the front panel portion 17. The partition walls 27-29 include a partition wall 27 that separates the first space 23 from the second space 24, a partition wall 28 that separates the first space 23 from the second space 25, and a partition wall 29 that separates the first space 23 from the third space 26. Each partition wall 27, 28 extends in the vertical direction, with its upper end connected to the upper wall portion 18a of the surrounding wall portion 18 and its lower end connected to the lower wall portion 18b of the surrounding wall portion 18. The partition wall 29 extends in the horizontal direction, with both ends connected to the respective partition walls 27, 28. Each partition wall 27, 28 corresponds to a "first partition wall," and the partition wall 29 corresponds to a "second partition wall."

[0023] Each of the partition walls 27, 28 has an extending portion 27a, 28a extending downward further than the partition wall 29. The third space 26 is separated from the second space 24 by the extending portion 27a of the partition wall 27, and is separated from the second space 25 by the extending portion 28a of the partition wall 28.

[0024] 5(a) and 5(b), the base portion 15 is provided with a plurality of lid portions 31 that close the openings of the second spaces 24, 25, respectively, and a cover portion 32 that covers the third space 26 from the outside. The lid portions 31 and the cover portion 32 are made of a resin material and are detachably attached to the base portion 15.

[0025] The cover portion 32 has an L-shaped cross section extending in the left-right direction and includes a rear plate portion 32a that covers the third space 26 from the rear and a lower plate portion 32b that covers the third space 26 from below. The lower plate portion 32b is disposed in a cutout portion 22 formed in the lower wall portion 18b of the surrounding wall portion 18. In this case, the surrounding wall portion 18 and the lower plate portion 32b form an annular peripheral wall portion 37 that extends rearward from the front plate portion 17 of the base portion 15. The peripheral wall portion 37 forms the peripheral surface of the base portion 15. In this case, the lower plate portion 32b and the lower wall portion 18b form a lower wall portion 37a that forms the lower surface of the peripheral wall portion 37. The lower wall portion 37a faces the partition wall 29 across the third space 26. The lower wall portion 37a corresponds to the "lower wall portion" set forth in the claims.

[0026] The base portion 15 is provided with a plurality of protrusions 35a to 35c that are used when attaching the face rest portion 16. The protrusions 35a to 35c protrude rearward and extend along the surrounding wall portion 18. Of the protrusions 35a to 35c, the protrusion 35a is provided on the upper wall portion 18a of the surrounding wall portion 18, the protrusion 35b is provided on the lid portion 31, and the protrusion 35c is provided on the rear plate portion 32a of the cover portion 32.

[0027] Next, we will explain the face support portion 16. As shown in Figures 6(a) and (b), the face support portion 16 has an annular portion 41 formed in an annular shape and a wall portion 42 provided on the inside surrounded by the annular portion 41. The face support portion 16 is made of a rubber material, for example, silicone rubber.

[0028] The annular portion 41 is formed in an oval ring shape that is long in the left-right direction. The annular portion 41 is the portion that fits tightly against the user's face around the user's mouth. Therefore, the user's mouth is accommodated inside the area surrounded by the annular portion 41. A groove-shaped annular space 44 that opens forward is formed in the annular portion 41. Although not shown in the figure, an annular space 44 is provided with an annular sound-absorbing material.

[0029] A plurality of slit grooves 47 that open forward are formed on the outer periphery of the annular portion 41. The protrusions 35a to 35c of the base portion 15 are fitted into these slit grooves 47. In this way, the face support portion 16 is detachably attached to the base portion 15.

[0030] The wall portion 42 is provided at the front end of the annular portion 41 so as to close an inner opening surrounded by the annular portion 41. A plurality of slit holes 45 are formed in the wall portion 42, penetrating the wall portion 42 in the thickness direction. The first space 23 of the base portion 15 opens toward the user's mouth through these slit holes 45 (and thus through the inner opening surrounded by the annular portion 41).

[0031] The annular portion 41 of the face support portion 16 is provided with a plate-shaped extension portion 51 that extends forward from its upper edge. The upper surface of the extension portion 51 is continuous with the upper surface of the annular portion 41 in the front-to-rear direction. In this case, the upper surface of the face support portion 16 is formed by the upper surfaces of the extension portion 51 and the annular portion 41. The upper surface of the face support portion 16 corresponds to the upper surface of the mask body 11.

[0032] The extension portion 51 has a length in the front-rear direction (in other words, an extension length) that is approximately the same as the length in the front-rear direction of the annular portion 41. Moreover, the extension portion 51 extends in the left-right direction along the upper edge of the annular portion 41, and the length in the left-right direction is at least twice the length in the front-rear direction.

[0033] As shown in FIGS. 2 and 3, the extension 51 is superimposed on the upper surface of the peripheral wall 37 of the base 15, more specifically, on the upper surface of the upper wall 18a of the peripheral wall 18 (see FIGS. 4 and 5(a)). In the peripheral wall 18, the upper surface of the upper wall 18a is located lower than the upper ends of the side wall portions 18c. As a result, an arrangement recess 52 in which the extension 51 is disposed is formed on the upper surface side of the upper wall 18a. The extension 51 is disposed in this arrangement recess 52, and in this disposed state, the upper surface of the extension 51 is smoothly continuous with the outer surfaces of the side wall portions 18c of the peripheral wall 18. Furthermore, the front end of the extension 51 is adjacent to or abuts against the flange 19 of the base 15.

[0034] On the underside of the extension portion 51, protrusions 53 are provided on both ends in the left-right direction of the extension portion 51. Meanwhile, in the upper wall portion 18a, a plurality of holes 54 (see FIGS. 4 and 5(a)) are provided corresponding to the protrusions 53. The protrusions 53 of the extension portion 51 are fitted into the holes 54 of the upper wall portion 18a, respectively. In this way, the extension portion 51 is detachably attached to the upper wall portion 18a.

[0035] 2, 3, and 6, a downwardly recessed recess 55 is formed in a portion of the upper surface of the face support portion 16 that is located directly below the user's nose. The recessed portion 55 is a groove extending in the front-to-rear direction, and is formed across the upper surface of the annular portion 41 and the upper surface of the extension portion 51. This recessed portion 55 makes it possible to reduce the degree to which the upper surface of the face support portion 16 interferes with the user's nose when the user wears the mask body 11 on their face.

[0036] 7, the upper surface of the face support 16 includes a concave curved surface portion 56 formed to be concave downward when viewed from the front-to-rear direction, and a pair of convex curved surface portions 57 formed to be convex upward on both left and right sides of the concave curved surface portion 56. The concave curved surface portion 56 is smoothly continuous with each of the pair of convex curved surface portions 57. In this configuration, if the uppermost portion of the convex curved surface portion 57 is defined as the uppermost portion 57a, the downwardly recessed portion between the uppermost portions 57a of the convex curved surface portions 57 forms the concave portion 55.

[0037] To minimize interference with the user's nose, the width W of the recessed portion 55 is preferably 15 to 60 mm, and the depth D of the recessed portion 55 is preferably 2 to 20 mm. The width W of the recessed portion 55 corresponds to the distance between the uppermost portions 57a of the convex curved surface portions 57. If the lowest point of the concave curved surface portion 56 is defined as the lowest portion 56a, the depth D of the recessed portion 55 corresponds to the vertical distance from the lowest portion 56a to the uppermost portion 57a ​​of the convex curved surface portion 57.

[0038] The recessed portion 55 is formed by bending the extending portion 51. Therefore, the lower surface of the extending portion 51 has a curved shape corresponding to the recessed portion 55. In addition, the upper surface of the upper wall portion 18a of the base portion 15, on which the extending portion 51 is placed, also has a curved shape corresponding to the recessed portion 55. This makes it possible for the extending portion 51, on which the recessed portion 55 is formed, to be placed stably on the upper surface of the upper wall portion 18a.

[0039] 2 to 5 and 7, a downwardly recessed portion 65 is formed on the upper end side of the flange portion 19 of the base portion 15. The recessed portion 65 is formed at the same position as the recessed portion 55 in the left-right direction. The recessed portion 65 has a curved bottom surface. The width of the recessed portion 65 is smaller than the width W of the recessed portion 55.

[0040] Next, the electrical components provided in the mask body 11 will be described with reference to Fig. 9. In Fig. 9, the mask body 11 is shown with the lid portions 31 and cover portions 32 removed.

[0041] As shown in FIG. 9 , the base portion 15 of the mask body 11 is provided with a plurality of circuit boards 71 ​​and 72 and a battery 73 as electrical components. The circuit board 71 is housed in the second space 24 of the base portion 15, the circuit board 72 is housed in the third space 26, and the battery 73 is housed in the second space 25. The circuit board 71 is connected to the circuit board 72 via a wiring 75. The wiring 75 extends between the second space 24 and the third space 26 through a hole 76 formed in the extension portion 27a of the partition wall 27. The battery 73 is connected to the circuit board 72 via a wiring 78. The wiring 78 extends between the second space 25 and the third space 26 through a hole 79 formed in the extension portion 28a of the partition wall 28.

[0042] The substrate 72 is formed in the shape of a long plate extending in the left-right direction. The substrate 72 is disposed with both plate surfaces facing up and down. A microphone 81 is mounted on the upper plate surface 72a of the substrate 72, and a plurality of terminals 82, 83 are mounted on the lower plate surface 72b. In this case, the microphone 81 and the terminals 82, 83 are all housed in the third space 26. The microphone 81 and the terminals 82, 83 each correspond to an "electrical component."

[0043] The microphone 81 detects the voice uttered by the user. The microphone 81 is formed in a cylindrical shape extending in the vertical direction. The microphone 81 is disposed in the center of the substrate 72 in the longitudinal direction.

[0044] As shown in Fig. 5(a), the partition wall 29 is provided with a sound guide portion 86 that guides the user's sound that has entered the first space 23 to the microphone 81. The sound guide portion 86 is attached to a notch 88 (see Figs. 4 and 9) formed in the partition wall 29. The notch 88 is a communication portion that connects the first space 23 and the third space 26, and is formed in a position aligned vertically with the microphone 81. Note that Fig. 9 shows a state in which the sound guide portion 86 has been removed.

[0045] The sound guiding portion 86 is made of a rubber material. As shown in Figures 10(a) and (b), the sound guiding portion 86 has an attachment portion 86a that is attached to the cutout portion 88 so as to cover the cutout portion 88, and a tubular portion 86b that extends cylindrically downward from the attachment portion 86a (i.e., toward the microphone 81). A groove portion 86c is formed on the circumferential surface of the attachment portion 86a. The attachment portion 86a is attached by fitting the edge portion of the partition wall 29 on the cutout portion 88 side into the groove portion 86c.

[0046] The microphone 81 is inserted into the cylindrical portion 86b from below. The microphone 81 is fitted inside the cylindrical portion 86b. The sound guide portion 86 is also formed with a sound passage portion 86d that opens into the first space 23 and extends to the inside of the cylindrical portion 86b. The user's sound is guided from the first space 23 to the microphone 81 through the sound passage portion 86d.

[0047] As shown in FIGS. 9, 11, and 12, the multiple terminals 82, 83 include a pair of earphone terminals 82 to which earphones 13 can be connected and a charging terminal 83 to which an external power source can be connected. These terminals 82, 83 are provided on the underside of the peripheral wall 37. The charging terminal 83 is located in the center of the mask body 11 in the left-right direction. The pair of earphone terminals 82 are located on both sides of the charging terminal 83 in the left-right direction. Therefore, in this case, these three terminals 82, 83 are arranged side by side in the left-right direction. Note that each of the terminals 82, 83 corresponds to a "connection terminal." The earphones 13 and the external power source correspond to an "external device."

[0048] The bottom wall portion 37a of the peripheral wall portion 37 is formed with a plurality of openings 92 that expose each of the earphone terminals 82 downward, and an opening 93 that exposes the charging terminal 83 downward. These openings 92, 93 are formed in the bottom plate portion 32b of the cover portion 32 that constitutes the bottom wall portion 37a. Each of the openings 92, 93 corresponds to an "opening" as defined in the claims.

[0049] An earphone 13 can be connected to each earphone terminal 82 through the opening 92. Each earphone 13 is a single-ear earphone worn on one ear of the user. Therefore, each earphone 13 has only one speaker unit 13c (see FIG. 1) that is worn in the ear and outputs sound. The cable 13a of each earphone 13 is provided with a terminal 13b that can be connected to the earphone terminal 82. The terminal 13b is a magnetic terminal that includes a magnet. The terminal 13b is attracted to the earphone terminal 82 by magnetic force, and is connected to the earphone terminal 82 by this attraction. Note that each earphone 13 has the same configuration, which allows it to be connected to any of the earphone terminals 82.

[0050] Terminal 13b of earphone 13 is connected to earphone terminal 82 from below. In this connected state, cable 13a of earphone 13 extends outward in the left-right direction from terminal 13b. Furthermore, when terminal 13b of earphone 13 is connected to earphone terminal 82, terminal 13b is covered from the front by flange portion 19 of base portion 15. More specifically, in this case, terminal 13b is entirely covered from the front by flange portion 19. However, a configuration in which only a portion of terminal 13b is covered from the front by flange portion 19 may also be used.

[0051] An external power source can be connected to the charging terminal 83 through an opening 93. The external power source is a commercial power source, such as a wall outlet. The charging terminal 83 can be connected to an external power source (more specifically, an outlet) via a connection cable 94. This allows power to be supplied from the external power source to the battery 73, thereby charging the battery 73. The microphone 81 and earphone 13 are also driven by the power from the battery 73.

[0052] When a user wears the sound leakage reduction mask 10 on their face and wants to talk with others, the conversation is carried out using, for example, a smartphone. In this case, when the user's voice is detected by the microphone 81, the voice is wirelessly transmitted from a transmitting unit (not shown) provided on the substrate 71 to the user's smartphone. The voice is then transmitted from the smartphone to the other person. Furthermore, when the other person's voice is transmitted to the user's smartphone, the voice is wirelessly transmitted from the smartphone to the mask body 11. When this voice is received by a receiving unit (not shown) provided on the substrate 71, the voice is output from the speaker unit 13c of the earphone 13. This makes it possible to hear the other person's voice.

[0053] According to the configuration of this embodiment described above in detail, the following excellent effects can be obtained.

[0054] The mask body 11 is formed with a first space 23 that opens toward the user's mouth and into which the user's exhaled breath enters, second spaces 24 and 25 that are adjacent to the first space 23 in the left-right direction, and a third space 26 that is adjacent to the first space 23 in the up-down direction. The second spaces 24 and 25 are separated from the first space 23 by partition walls 27 and 28, which prevents exhaled breath from flowing from the first space 23 into the second spaces 24 and 25. The third space 26 is separated from the first space 23 by a partition wall 29, which prevents exhaled breath from flowing from the first space 23 into the third space 26. The second spaces 24 and 25 house electrical components 71 and 73 (specifically, a circuit board 71 and a battery 73), and the third space 26 houses electrical components 72, 81-83 (specifically, a circuit board 72, a microphone 81, an earphone terminal 82, and a charging terminal 83). This can prevent the electrical components 71 to 73 and 81 to 83 from being adversely affected by moisture in the breath.

[0055] Furthermore, since the first space 23 and the second spaces 24, 25 are adjacent to each other in the left-right direction and the first space 23 and the third space 26 are adjacent to each other in the up-down direction, it is possible to prevent the length of the mask body 11 in the front-to-back direction from increasing. This makes it difficult for the mask body 11 to tilt downward when worn on the face, and as a result, the mask body 11 can be made more comfortable to wear.

[0056] The horizontally elongated mask body 11 is provided with second spaces 24, 25 adjacent to the first space 23 in the left-right direction, and the electrical components 71, 73 are housed in the second spaces 24, 25. In this case, the second spaces 24, 25 can be made relatively large, which is suitable for housing the electrical components 71, 73.

[0057] The second spaces 24, 25 are provided on both the left and right sides of the first space 23, and the electrical components 71, 73 are housed in the second spaces 24, 25, respectively. This prevents the left and right weight balance of the mask body 11 from becoming unbalanced, even when the mask body 11 is configured to have multiple electrical components 71, 73. As a result, the mask body 11 can be made more comfortable to wear.

[0058] In addition to the second spaces 24, 25, the mask body 11 is provided with a third space 26 that is vertically adjacent to the first space 23, and a microphone 81 that detects the user's voice is provided in the third space 26. In this case, it is possible to prevent the microphone 81, as well as the electrical components 71, 73 in the second spaces 24, 25, from being adversely affected by moisture in the exhaled breath.

[0059] The microphone 81 is connected to the electrical components 71, 73 housed in each of the second spaces 24, 25. The third space 26 extends in the left-right direction and is in communication with each of the second spaces 24, 25 at both ends. In this case, when connecting the electrical components 71, 73 in the second spaces 24, 25 and the microphone 81 in the third space 26 via the wiring 75, 78 (and thus the connection path), the wiring 75, 78 can be disposed across the second spaces 24, 25 and the third space 26. This makes it possible to prevent the electrical components 71, 73 in the second spaces 24, 25 and the microphone 81 in the third space 26, as well as the wiring 75, 78 connecting them, from being adversely affected by moisture in exhaled breath.

[0060] The third space 26 accommodates the circuit board 72 with both of its surfaces facing up and down. The circuit board 72 has a microphone 81 mounted on the upper surface 72a and connection terminals 82, 83 (specifically, an earphone terminal 82 and a charging terminal 83) mounted on the lower surface 72b. These connection terminals 82, 83 can be connected to external devices (specifically, earphones 13 and an external power source) through openings 92, 93 formed in the lower wall 37a that forms the underside of the mask body 11. This configuration simplifies the configuration by allowing multiple electrical components 72, 81-83 to be centrally arranged. Furthermore, because each of the electrical components 72, 81-83 is accommodated in the third space 26, which is separated from the first space 23, the electrical components 72, 81-83 are prevented from being adversely affected by moisture in exhaled breath.

[0061] A sound guide portion 86 that guides sound entering the first space 23 to the microphone 81 is provided in the cutout portion 88 of the partition wall 29. The attachment portion 86a of the sound guide portion 86 is attached to the cutout portion 88 so as to cover the cutout portion 88. The sound guide portion 86 has a cylindrical portion 86b that extends from the attachment portion 86a toward the microphone 81, and the microphone 81 is fitted inside the cylindrical portion 86b. The sound guide portion 86 further has a sound passage portion 86d that opens to the first space 23 and extends to the inside of the cylindrical portion 86b. In this case, the user's sound is guided to the microphone 81 through the sound passage portion 86d. This configuration can effectively guide the user's sound from the first space 23 to the microphone 81 while preventing the user's exhaled breath from flowing from the first space 23 into the third space 26.

[0062] In a configuration including a microphone 81, it is conceivable that a substrate 71 and a battery 73 are provided to drive the microphone 81. In this regard, in the above embodiment, the substrate 71 and the battery 73 are separately disposed in the left and right second spaces 24, 25, respectively. This makes it possible to prevent the left and right weight balance of the mask body 11 from becoming poor in a configuration including the substrate 71 and the battery 73.

[0063] The present invention is not limited to the above-described embodiment, and may be implemented, for example, as follows.

[0064] In the above embodiment, the band 12 is used as the attachment part for attaching the mask body 11 to the face, but the attachment part does not necessarily have to be the band 12. For example, a mask-type wearable mask may be used as the attachment part. The wearable mask has a cover mask that covers the mask body 11 from the outside and a pair of left and right ear loops attached to the cover mask. With this wearable mask, the ear loops are hung over the user's ears, and the mask body 11 is pressed against the face by the cover mask. This makes it possible to hold (wear) the mask body 11 on the user's face.

[0065] It is not necessary to provide a mounting portion. In this case, the mask body 11 can be held on the face by pressing the mask body 11 with the hand.

[0066] In the above embodiment, the third space 26 is adjacent to and below the first space 23, but the third space may be adjacent to and above the first space 23. Also, a third space may be provided on each side of the first space 23 in the vertical direction.

[0067] In the above embodiment, the second spaces 24, 25 are provided on both the left and right sides of the first space 23, but the second space may be provided on only one of the left and right sides.

[0068] In the above embodiment, the second spaces 24, 25 and the third space 26 are provided as adjacent spaces adjacent to the first space 23, but it is also possible to provide only one of the second spaces 24, 25 and the third space 26. The arrangement and number of the adjacent spaces may be determined appropriately depending on the number and size of the electrical components provided in the mask body 11. [Explanation of symbols]

[0069] 10...sound leakage suppression mask, 11...mask body, 23...first space, 24...second space as adjacent space, 25...second space as adjacent space, 26...third space as adjacent space, 27...partition wall as first partition wall, 28...partition wall as first partition wall, 29...partition wall as second partition wall, 37a...lower wall portion, 71...board as electrical component, 72...board as electrical component, 73...battery as electrical component, 81...microphone as electrical component, 82...earphone terminal as electrical component and connection terminal, 83...charging terminal as electrical component and connection terminal, 86...audio guide portion, 88...cutout portion as connecting portion, 92, 93...openings.

Claims

1. A sound leakage suppression mask that suppresses the sound emitted by a user from leaking to the outside, a mask body that covers the user's mouth; The mask body is formed with a first space that opens toward the user's mouth and into which the user's exhaled air enters, and an adjacent space that is adjacent to the first space in the left-right direction or the up-down direction, a partition wall is provided between the first space and the adjacent space to separate the two spaces; A sound leakage suppression mask in which an electrical component is housed in the adjacent space.

2. The mask body has a horizontally elongated shape extending in the left-right direction, As the adjacent space, a second space is provided adjacent to the first space in the left-right direction, As the partition wall, a first partition wall is provided which partitions the first space and the second space, The sound leakage suppression mask according to claim 1 , wherein the electrical component is accommodated in the second space.

3. The mask body is provided with the second spaces on both sides of the first space in the left-right direction, The first partition wall is provided for each of the second spaces, The sound leakage suppression mask according to claim 2 , wherein each of the second spaces accommodates an electrical component.

4. As the adjacent space, a third space is provided which is adjacent to the first space in the up-down direction, As the partition wall, a second partition wall is provided which partitions the first space and the third space, The sound leakage suppression mask according to claim 3 , wherein the third space is provided with a microphone as the electrical component for detecting the user's voice.

5. the microphones are connected to the electrical components housed in the second spaces, respectively; The sound leakage suppression mask according to claim 4 , wherein the third space extends in the left-right direction and communicates with the second spaces at both ends thereof.

6. the third space is adjacent to and below the first space, the mask body is provided with a lower wall portion that faces the second partition wall across the third space and forms a lower surface of the mask body, a substrate as the electrical component is accommodated in the third space with both plate surfaces facing up and down, The substrate has the microphone mounted on an upper surface thereof and a connection terminal as an electrical component mounted on a lower surface thereof, The sound leakage suppression mask according to claim 4 or 5, wherein the connection terminal is accommodated in the third space and is connectable to an external device through an opening formed in the lower wall portion.

7. a communication portion that communicates the first space with the third space is formed in the second partition wall at a position that is aligned vertically with the microphone, the communication unit is provided with a voice guide unit that guides the voice of the user that has entered the first space to the microphone, The sound guidance unit an attachment portion attached to the communication portion so as to close the communication portion; a cylindrical portion extending from the mounting portion toward the microphone in a cylindrical shape and into which the microphone is fitted; The sound leakage suppression mask according to claim 4 or 5, further comprising: a sound passage portion that opens into the first space and extends to the inside of the cylindrical portion.

8. The sound leakage suppression mask according to claim 3 , wherein one of the electrical components housed in each of the second spaces is a circuit board, and the other is a battery.

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