JP2009130756A - Sound deadening mask for telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound deadening mask for a telephone of which sound deadening performance is improved and speaker is allowed to breathe well. <P>SOLUTION: The sound deadening mask for a telephone includes a mask body 11 for covering a microphone opening. Speech is made to a mobile phone through a microphone m installed inside the mask body, and the voice of speaker is hard to be leaked outside. The mask body 11 includes a sound shielding layer 13 made from a material having no breathablility, and an air-intake check valve 18 and an exhaust check valve 19 are formed at the sound shielding layer 13. The air-intake check valve 18 is such a check valve as ventilation from the outside of the sound shielding layer to the inside is allowed while ventilation in the opposite direction is not allowed. The exhaust check valve 19 is such a check valve as ventilation from the inside of the sound shielding layer to the outside is allowed while ventilation in the opposite direction is not allowed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a silencer mask for telephones.

  The telephone equipment used today leaks speech from the transmitter. For this reason, for reasons such as inconvenience to others, calls using mobile phones are prohibited in places such as train lobbies and hotel lobbies, which is very inconvenient. In addition, even if it is a landline phone, the conversational sound disturbs others and privacy conversations are not possible, which is often inconvenient. On the other hand, when many people talk at the office or other workplaces, A noisy environment.

  Therefore, various silencers such as Patent Documents 1 and 2 have been proposed. In particular, Patent Document 2 has a mask shape, and a microphone connected to a mobile phone is placed in the mask. It has been proposed to However, in Patent Document 2, the mask structure is not sufficiently improved, and if it is attempted to improve the muffling performance, it becomes difficult for the caller to breathe.

JP 2000-244622 A JP 2006-287886 A

  It is an object of the present invention to provide a muffler mask for a telephone set that can improve the muffling performance and that allows a caller to breathe well.

The invention according to claim 1 of the present application is provided with a mask body for covering the caller's mouth, and by making a call to the mobile phone using a microphone placed inside the mask body, the voice of the caller is hardly leaked to the outside. In the silencer mask for telephones,
The mask body is provided with a sound insulation layer made of a non-breathable material, and this sound insulation layer is formed with an intake check valve and an exhaust check valve,
The check valve for intake is a check valve that allows ventilation from the outside to the inside of the sound insulation layer and does not allow ventilation in the opposite direction.
There is provided a silencer mask for a telephone set, wherein the exhaust check valve is a check valve that allows ventilation from the inside to the outside of the sound insulation layer and does not allow ventilation in the opposite direction.
The invention according to claim 2 of the present application is characterized in that the mask body includes an outer layer coordinated outside the sound insulation layer, and an inner layer coordinated inside the sound insulation layer. 2. The telephone silencer mask according to claim 1, wherein the inner layer is a breathable layer composed of a woven fabric, a knitted fabric or a non-woven fabric, and the sound insulating layer is a synthetic resin layer.
The invention according to claim 3 of the present application is characterized in that a close contact portion to the face formed from synthetic rubber or natural rubber is provided inside the peripheral edge portion of the mask. A telephone silencer mask is provided.

  The present invention is provided with an intake check valve and an exhaust check valve even if the sound insulation layer provided on the mask body is highly airtight. When the check valve for opening is opened and air enters the mask body and the air is discharged, the check valve for exhaust is opened and the air is discharged out of the mask. In this way, even if the nose and mouth are covered with a silencing mask and sealed to improve the silencing performance, the microphone in the mask body can be used for telephone calls and can also be used for breathing. A mask could be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
This telephone silencer mask includes a mask main body 11 and support portions 12 provided on the left and right sides of the mask main body 11, and the support portion 12 is worn over the ear and attached to the face.

  The mask body 11 covers the caller's mouth and nose and has a three-dimensional shape with a central portion protruding forward. As shown in FIG. 1B, the outer layer 14 and the sound insulation layer are formed from the outside to the inside. 13 and an inner layer 15, and desirably, as shown in FIG. 2, a fold 16 is formed at the approximate center in the left-right direction so that it can be folded in two.

The outer layer 14 and the inner layer 15 are air permeable layers made of woven fabric, knitted fabric or non-woven fabric, and the appearance of the mask is the same as that of a normal mask.
The sound insulation layer 13 is made of a non-breathable material such as synthetic resin, and includes an intake check valve 18 and an exhaust check valve 19. One or more intake check valves 18 and exhaust check valves 19 may be provided, but in this example, approximately 20 of the sound insulation layers 13 are arranged. The intake check valve 18 is a check valve that allows ventilation from the outside to the inside of the sound insulation layer 13 and does not allow ventilation in the opposite direction. On the other hand, the exhaust check valve 19 is a check valve that allows ventilation from the inside to the outside of the sound insulation layer 13 and does not allow ventilation in the opposite direction.

  The intake check valve 18 and the exhaust check valve 19 can be changed as appropriate as long as they have a check valve effect, and the one shown in FIG. 3 is particularly effective. As shown in FIG. 3 (B), a plurality of flaps 21 are formed by providing cuts 20 extending radially from the center in the sound insulation layer 13. As shown in FIG. 3A, the flap 21 gradually protrudes in the direction in which the check valve can flow out from the proximal end 22 toward the distal end 23. Specifically, the intake check valve 18 gradually protrudes toward the inside of the mask, and the exhaust check valve 19 gradually protrudes to the outside of the mask. As a result, the valve opens due to the airflow in the direction allowing outflow, and the flaps 21 approach each other and close the valve in the airflow in the opposite direction. By setting the shape and stiffness of this valve, the exhalation of the conversation passes with the exhaling pressure, but by suppressing the sound wave, it is possible to prevent the conversation sound from leaking out. , Exhibiting a silencing effect.

  As shown in FIG. 1 (B), it is also desirable to provide a close contact portion 24 to the face made of synthetic rubber or natural rubber inside the peripheral edge of the mask so as to enhance the sound insulation effect. Inside the sound insulation layer 13 of the mask body 11, the microphone m connected to the mobile phone is housed. The microphone m can be mounted between the sound insulation layer 13 and the inner layer 15 and does not perform a part of the sewing of the peripheral edge so as to be connected to the space between the sound insulation layer 13 and the inner layer 15. Another inlet is provided in the inner layer 15, and the microphone m is inserted into the inside from here. Further, the microphone m may be mounted inside the inner layer 15 (between the inner layer 15 and the face).

  Further, the present invention may be used for fixed telephones as well as mobile phones. In this case, it is only necessary to attach the transmitter and the earphone and use the mute mask using the microphone m in the same manner as the mobile phone.

(A) is a side view of the mounting state of the silencing mask according to the embodiment of the present invention, and (B) is a sectional view of the silencing mask. (A) is a front view showing an outer layer of the silencing mask, (B) is a front view of a sound insulating layer of the silencing mask, and (C) is a front view showing an inner layer of the silencing mask. (A) is a top view which shows the valve structure of the silencing mask, (B) is the sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Mask main body 12 Support band 13 Sound insulation layer 14 Outer layer 15 Inner layer 16 Crease line 18 Intake check valve 19 Exhaust check valve 20 Notch 21 Flap 22 Base end 23 Tip 24 Contact part m Microphone

Claims (3)

In the silencer mask for telephones, which has a mask body to cover the caller's mouth and makes a call to the mobile phone with a microphone placed inside the mask body, making it difficult for the voice of the caller to leak outside,
The mask body is provided with a sound insulation layer made of a non-breathable material, and this sound insulation layer is formed with an intake check valve and an exhaust check valve,
The check valve for intake is a check valve that allows ventilation from the outside to the inside of the sound insulation layer and does not allow ventilation in the opposite direction.
A silencer mask for telephones, wherein the exhaust check valve is a check valve that allows ventilation from the inside to the outside of the sound insulation layer and does not allow ventilation in the opposite direction. The mask body includes an outer layer arranged outside the sound insulation layer and an inner layer arranged inside the sound insulation layer, and the outer layer and the inner layer are made of woven fabric, knitted fabric or nonwoven fabric. 2. The silencer mask for telephones according to claim 1, wherein the sound insulation layer is a layer made of synthetic resin. 3. The telephone silencer mask according to claim 1 or 2, further comprising a face-to-face contact portion formed of synthetic rubber or natural rubber inside the peripheral edge of the mask.

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