JP2000176033A - Mask with voice transmitting function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure for voice transmitting function and reduce the cost by providing an inspiratory part, an evacuation part, and a voice transmitting part on a face piece capable of covering at least the mouth and nasal cavity of a wearing person, and forming the voice transmitting part into a thin film so as to exhibit voice transmitting function by the vibration by the voice sounded by the wearing person. SOLUTION: A dustproof mask 1 comprises a face piece 2 covering at least the mouth and nasal cavity of a wearing person, and a head band laid around the head of the wearing person. The face piece 2 is formed, for example, by use of silicone rubber, so as to have a lateral pair of filter units, an inspiratory check valve 12 situated in the connecting part of the units to the face piece 2, and an evacuation check valve 8 permeably covered with a cap 7, and a voice transmitting part 9 whose front surface is covered with the grid structure part 11 of a hand support member is provided in the lateral center of such the face piece 2. The voice transmitting part 9 is formed by locally thinning the face piece 2 so as to be vibrated by the voice of the wearing person to exhibit the voice transmitting function.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mask with a voice transmission function suitable for use as a dust mask or a gas mask.

[0002]

2. Description of the Related Art It is well known that a dust mask or a gas mask is worn at a site where dust or gas is generated. These masks have a face body that is in close contact with the face of the wearer and covers at least the mouth and nostrils, and a wearing means such as a headband for keeping the face body in close contact with the face. One of such facepieces has an air inlet provided with a filter and a check valve, and an air outlet provided with a check valve opened by the wearer's exhalation, and a voice for transmitting the voice of the wearer. Some have a part. In order to obtain the voice transmitting section, a voice transmitting apparatus in which a thin film such as a plastic film is stretched on a rigid frame in a tension state may be attached to an opening formed in the center of the front of the face body. The voice of the mask wearer is transmitted to the other party through the vibration of the thin film.

[0003]

In the above-mentioned mask of the prior art, it takes a considerable amount of time to manufacture a voice device and to attach the voice device to a facepiece. In addition, it is preferable that the voice loudspeaker has a large area of the thin film to facilitate the transmission of voices. The area becomes smaller.

[0004] It is an object of the present invention to simplify the structure for exerting the voice transmission function, to reduce the manufacturing cost of a mask with a voice transmission function, and to use a thin film having a large area. Is to make it possible.

[0005]

In order to solve the above problems,
The present invention is based on the premise that a face body capable of covering at least a mouth and a nostril of a wearer, and an intake part, an exhaust part, and a voice transmission part formed on the face body, and the face body is provided on the face of the wearer. It is a mask with a voice transmission function having a wearing means for fixing.

[0006] On this premise, the present invention is characterized in that the face body is formed of a soft elastic material, and a required portion of the face body can be easily vibrated by a voice uttered by a wearer to exhibit a voice transmission function. Thus, it is formed to be thinner than the peripheral portion surrounding the required portion.

In one embodiment of the present invention, the required portion of the face body is a thin film having a thickness of 30 to 250 microns.

[0008] In another embodiment of the present invention,
The thin film at the required portion is pressed by a member separate from the face body attached to the face body, protrudes toward either the inside or the outside of the face body, and is in a tension state.

In another embodiment, the thin film is pressed by a columnar portion formed on the separate member.

In still another embodiment, the thin film is pressed by a cylindrical portion formed on the separate member.

In still another embodiment of the present invention, in the face body, a peripheral portion surrounding the required portion has higher rigidity than a portion near the peripheral portion.

In still another embodiment of the present invention, a peripheral portion surrounding the required portion of the face body has a higher rigidity than a portion near the peripheral portion by attaching a member separate from the face body. Have.

In still another embodiment, a groove is formed in the peripheral portion so as to extend annularly along the required portion.

In still another embodiment of the present invention, the means for wearing the face body includes a headband wound around a wearer's head, and a band support having higher rigidity than the band and attached to the face body. The band support is provided with a portion for covering and protecting a required portion exhibiting the voice transmission function from an outer surface.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a mask with a voice function according to the present invention will be described below by taking a dust mask as an example.

A dust mask 1 shown in a partially cutaway perspective view in FIG. 1 includes a face 2 covering a mouth and a nostril of a wearer, a headband 3 wrapped around a wearer's head, and a band 3 attached to the face 2.
And a band supporting member 4 for attaching the band.

The face body 2 is made of, for example, silicone rubber, and has a pair of left and right filter units 6 and a check valve 12 for intake located at a connecting portion between the filter unit 6 and the face body 2.
(See FIG. 2), an exhaust check valve 8 (see FIG. 2) which is covered with a cap 7 so as to be permeable, and a voice transmission section 9 formed at the center in the width direction of the face body 2. The front face of the voice transmitting section 9 is covered with the grid structure section 11 of the band support member 4.

FIG. 2 is a view taken in the direction of arrows II-II in FIG. The facepiece 2 has a voice transmission section 9 in the front (left side in the figure), and has a relatively thin face contact section 13 in the rear side (right side in the figure). A check valve 12 for intake is mounted on a side surface of the face body 2, and a check valve 8 for exhaust is mounted on a lower portion of the face body 2.

The voice transmission section 9 is a portion where the thickness of the face body 2 is locally reduced so as to vibrate well in response to the wearer's voice. The voice transmission section 9 is a portion that is formed simultaneously when the face body 2 is molded with a soft elastic material such as synthetic rubber such as silicone rubber, rubber, or a plastic elastomer, and has a position and a planar shape in the face body 2. There are no particular restrictions. However, an example of a preferred voice transmission 9 can be located in front of the mouth of the wearer, 30-25.
It is a circular part having a thickness t of 0 microns and a diameter d of 20 to 70 mm. In the facepiece 2, the peripheral portion 14 of the voice transmission section 9 is relatively thick, for example, has a thickness of 1 to 10 mm, more preferably 1 to 5 mm. Even if the facepiece 2 is distorted, the distortion is caused by the voice transmission section. 9 is difficult. A boss 16 protrudes from the front surface of the peripheral portion 14, and the band support member 4
Is inserted through the through hole 11A of the grid structure 11.

The band supporting member 4 is made of plastic or metal harder than the face body 2. The grid structure 11 is formed by bosses 16 so that the peripheral portion 17 is in close contact with the peripheral portion 14 of the voice transmitting portion 9. Retained, central part 18
Is located away from the front face of the voice transmission unit 9. The grid structure portion 11 prevents the foreign matter from touching the voice transmission portion 9 and suppresses the deformation of the peripheral portion 14, thereby preventing the voice transmission portion 9 from being wrinkled or sagged.

At the lower part of the face body 2, a rigid plastic annular member 31 and an exhaust check valve 8 for closing the through hole 32 of the member 31 from the outside so as to be openable are attached. The outside of the check valve 8 is covered with a circular cap 7 so as to allow ventilation. The cap 7 is detachable from the annular member 31 and has a large number of exhaust ports 34 on the peripheral wall.

FIG. 3 is a view taken along line III-III in FIG. The voice transmission section 9 has a circular shape with a diameter d when viewed from inside the mask 1.

In the mask 1 constructed as described above, the contact portion 13 is applied to the face so as to cover the mouth and the nostrils.
The headband 3 is worn around the head. The wearer's intake air flows into the mask 1 through the filter (not shown) of the filter unit 6, opening the intake check valve 12. Exhalation opens the check valve 8 for exhaust and opens the exhaust port 34 of the cap 7.
Is discharged from The voice uttered by the wearer is also transmitted to the other party by vibrating the air outside the voice transmitting section 9 by vibrating the voice transmitting section 9 in the form of a thin film. Since the voice transmission section 9 is obtained when the facepiece 2 is molded, the mask 1 requires the time and effort of manufacturing a voice device separate from the facepiece as in the prior art, and requires the use of the voicepiece as a facepiece. The time and effort for mounting on the device becomes unnecessary.

FIGS. 4 and 5 are a view similar to FIG. 2 showing an embodiment of the present invention and a partial rear view of a band support member 4 used in the mask 1 of FIG. In the mask 1, the voice transmitting section 9 in the form of a thin film has a cylindrical section 36 (FIGS. 4 and 5) formed on the back surface of the grid structure section 11 of the band supporting member 4.
Is pressed inward from the outside of the mask 1 to thereby be in an extended state. In addition, voice section 9
Is covered by a cover member 19 from the inside of the mask 1. The cover member 19 is a circular member having a diameter larger than that of the voice transmitting portion 9, has a grid structure in the central portion 21, and has a peripheral portion 22 in close contact with the inner surface of the face body 2.
It is held by a boss 37 protruding from the face body 2.
The cover member 19 is made of plastic or metal harder than the face body 2 and prevents foreign matter from touching the voice transmission section 9. The vibration of the air is transmitted to the voice transmission unit 9 through the grid. The peripheral portion 22 cooperates with the support member 4 located outside the voice transmitting portion 9 to sandwich the peripheral portion 14 of the voice transmitting portion 9 and suppresses deformation of the peripheral portion 14 and the voice transmitting portion 9 inside thereof. ing.

When the voice transmission section 9 is extended, the area capable of vibrating is expanded as compared with that of FIG.
In addition, since the user is in a high tension state, it is easy to convey even the small voice of the wearer to the other party. In addition, since the voice transmitting portion 9 is spread in a trumpet shape toward the outside of the mask 1, the directivity when the voice of the wearer is transmitted is increased, and the voice is easily transmitted to the front front of the mask 1.

It should be noted that the figure is formed by molding with silicone rubber so that the thickness of the entire face body 2 except for the voice transmitting portion 9 becomes about 2 mm, the thickness t of the voice transmitting portion 9 becomes 100 μm, and the diameter d becomes 50 mm. The mask 1 of FIG. 2 and the voice transmission section 9 of the mask 1 are horizontally moved by the band supporting member 4 as shown in FIG.
When the sound having a sound pressure level of 85 to 90 d generated in each mask 1 is measured in front of the voice transmission unit 9 with respect to the mask 1 of FIG. The mask 1 in FIG.
From this result, it can be seen that the tension of the thin film of the voice transmission section 9 enhances the voice transmission effect.

FIG. 6 is a drawing similar to FIG. 4 showing an embodiment of the present invention. The mask 1 of FIG.
Unlike the above, the voice transmission section 9 is pressed into the inside of the mask 1 by a columnar section 39 formed on the back surface of the grid structure section 11 of the band support member 4.

FIG. 7 is a drawing similar to FIG. 4 showing an example of the embodiment of the present invention. In the mask 1 of FIG. 7, a raised portion 41 is formed on the cover member 19 located inside the mask 1 so as to contact the vicinity of the edge of the voice transmission portion 9 and press the voice transmission portion 9 from inside to outside. Have been. Part 41
Has an annular shape so that it can extend along the edge of the voice transmitting section 9.

FIG. 8 is also a partial sectional view of the mask 1 showing an example of the embodiment of the present invention. The band support member 4 and the cover member 19 are in contact with the peripheral portion 14 of the voice transmitting portion 9 of the mask 1, and a groove 42 is formed outside the edges of these members 4 and 19. The groove 42 has a circular voice transmitting portion 9.
Extends along the entire circumference of Since the thickness of the face body 2 is locally reduced at the bottom 43 of the groove 42, the deformation of the outer peripheral portion of the face body 2 does not easily reach the voice transmission section 9. Such a groove 42 is
Even if the mask 1 does not include the band support member 4 and the cover member 19, the effect can be obtained.

In the present invention, the voice transmission section 9 is not limited to the illustrated example, but can be formed at a plurality of locations on the face body 2. The position of the voice transmission unit 9 may be a side portion, a top portion, or the like, in addition to the central portion of the mask 1. In addition, the shape of the voice transmitting section 9 can be an oval, a polygon, or any other appropriate shape in addition to a circle.

[0031]

According to the present invention, since the voice transmitting portion of the mask with a voice transmitting function according to the present invention is formed by locally reducing the thickness of the face body, it can be formed simultaneously with the molding of the face body. . With such a mask, there is no need to produce a separate voice device or attach the voice device to a facepiece, and it is possible to reduce the manufacturing cost of the mask. Further, since a frame for holding the thin film is not necessary in the voice transmitting portion as in the related art, the area of the thin film can be increased by the amount of the frame, so that the voice of the wearer can be easily transmitted.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a mask.

FIG. 2 is a view taken along line II-II in FIG.

FIG. 3 is a partial view inside a mask.

FIG. 4 is a drawing similar to FIG. 2 showing an example of the embodiment;

FIG. 5 is a partial rear view of the band holding member.

FIG. 6 is a view similar to FIG. 4, showing another example of the embodiment.

FIG. 7 is a view similar to FIG. 4, showing another example of the embodiment.

FIG. 8 is a partial sectional view of a mask showing still another example of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mask 2 Face body 3 Wearing means (headband) 4 Band supporter (band support member) 8 Exhaust part (check valve) 9 Required part, thin film (voice transmission part) 12 Suction part (check valve) 36 Pressing member 39 Pressing member 41 Pressing member 42 Groove

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Makoto Makoto 7-Fourth-cho, Chiyoda-ku, Tokyo Koken Stock Company In-house F-term (reference) 2E185 AA07 BA16 CA03 CB07 CB13 CB16 CC33

Claims (9)

[Claims] 1. A face body capable of covering at least a mouth and a nostril of a wearer, and an intake part, an exhaust part and a voice transmission part formed on the face body, and for fixing the face body to the wearer's face. A voice-transmitting mask having a wearing means, wherein the face body is formed of a flexible elastic material, and a required portion of the face body is easily vibrated by a voice uttered by a wearer to perform a voice-transmitting function. Wherein the mask is formed to be thinner than a peripheral portion surrounding the required portion. 2. A method according to claim 1, wherein the required portion of the face body has a thickness of 30 to 30 mm.
2. The mask of claim 1, wherein the mask is a 250 micron thin film. 3. The thin film at the required portion is pressed by a member separate from the face body attached to the face body,
3. The mask according to claim 2, wherein the mask projects toward either the inside or the outside of the face body and is in a tensioned state. 4. The mask according to claim 3, wherein said thin film is pressed by a columnar portion formed on said separate member. 5. The mask according to claim 3, wherein the thin film is pressed by a cylindrical portion formed on the separate member. 6. The mask according to claim 1, wherein a peripheral part of the face body surrounding the required part has higher rigidity than a part near the peripheral part. 7. The peripheral portion surrounding the required portion of the face body has higher rigidity than a portion near the peripheral portion by attaching a member separate from the face body. mask of. 8. The mask according to claim 1, wherein a groove extending annularly along the required part is formed in the peripheral part. 9. The wearing means of the face body comprises a headband wrapped around a wearer's head and a band support having higher rigidity than the band and attached to the face body. A portion for covering and protecting a required portion exhibiting the voice transmission function from an outer surface.
The mask according to any one of claims 1 to 8.