JPH0713726Y2 - Mask with expiratory means - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mask, and more particularly to a mask which is attached to the nose and mouth so as to prevent inhalation of harmful substances and has means for exhaling from the lungs.

[0002]

Various masks are known and have been used for different purposes. A filter substance or device is provided to effectively prevent inhalation of harmful substances. However, wearing a mask for a long time is uncomfortable. Furthermore, during exhalation, warm moisture is simultaneously released from the nose. If the user wears glasses, the glasses will be clouded by the exhalation from the lungs. When your glasses get cloudy, you have to wipe them so that you don't block your view.

The present invention is accomplished in the above environment.

[0004]

SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to provide a mask having means for exhaling air from the lungs. Another object of the present invention is to provide a mask that eliminates the problem of moisture during exhalation. Yet another object of the present invention is to provide a mask that helps the user breathe smoothly. Yet another object of the present invention is to provide a mask that is easy and inexpensive to manufacture. Yet another object of the present invention is to provide a versatile mask.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a body having a layer of air filtration lining having ventilation holes mounted thereon and secured to the head above the nose and mouth to prevent inhalation of harmful substances. A mask consisting of two belts connected to the body on two opposite sides is provided. Air filtration linings consist of activated carbon or cotton filters that remove harmful substances from the air passing through them. The detachable fixing means is
Used to connect belts together. The body includes a nose portion to be placed on the nose, a lower elliptical hole spaced from the nose portion, a flexible tapered tube connected to the elliptical hole to allow exhalation from the lung, and a flexible tube. And a protective cover over the tapered tube. The flexible tapered tube exhales from the lungs,
It is made from a flexible rubber or plastic material with a portion of its inner wall capillaries or membranes that block the airway during inhalation into the lungs.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, a mask according to the present invention generally comprises a body 1, an exhaust pipe 2 and a protective cover 3. The body 1 can be made of a non-woven fabric, or of various materials, suitable for filtering air, and sized and shaped to fit smoothly over the nose and mouth. As shown, body 1
Is a curved upper edge portion 4, a nose portion 5 that extends downward from the curved upper edge portion 4 in the center, and an elliptical tube holder 6 in the nose portion 5 at the bottom portion that holds the exhaust pipe 2, Curved surface portions 7 extending downwardly from the nose portion 5 for fixing the protective cover 3 to both sides.
A layer of air filtration lining 8, a plurality of vents 9 through the air filtration lining, a peripheral edge 10 surrounding the perimeter of the air filtration lining, and male and female fastening elements 13, 14 on the head. It is composed of two opposed fixing belts 11 and 12 fixed on one opposite side. The air filtration lining 8 is made of activated carbon or cotton gas, which removes harmful gas from the air passing through it.
Male and female velcro strips are used to secure the fastening belts 11 and 12 so that they can be conveniently removed to secure the mask to the head and freely connected. Exhaust pipe 2
Is a flexible rubber in the form of a tapered tube having an opposing flange 15 around its wide end and defining an air passage 18 therein, suitable for insertion through the tube retainer 6. Or made from plastic material. The outward flange 15 is slightly larger than the inner diameter of the pipe holder 6 so that it can be firmly supported by the exhaust pipe 2 when it is inserted into the pipe holder. The protective cover 3 may be made of a non-woven fabric that protects the exhaust pipe 2 or a suitable material. It is fixed to the body 1 on the curved surface part by a stitch or press-seal process.

With reference to FIGS. 2, 3 and 4, the operation and effect of the present invention will be understood from the following description. Belt 11,
By fixing the 12 fixing elements 13 and 14 to each other, the mask 16 is firmly fixed to the user's head and covers the nose and mouth. When the mask 16 is worn over the user's nose and mouth, the gap 17 creates a gap between the user's nose and the tube retainer 6.
Kept between. Therefore, the outside air is ventilated through the ventilation hole 9 and the gap 17.
Through the user's lungs; exhaled air from the user's lungs can be exhausted from the mask 16 through the exhaust tube 2 (see FIGS. 2 and 3). This eliminates the problem of fogging of the glasses caused by the user's warm exhalation from the lungs. As shown in FIG. 4, during the operation of inhaling into the lungs, the air passage 18 of the exhaust pipe 2
Are automatically blocked by the capillaries of the outer wall there, or parts of the membrane and the moisture remaining from previous exhalations, and thus the vent holes 9
Only the air passing through is passed to the lungs, ie the inhaled air is processed through the filtration of a layer of air filter cloth 8.

[Brief description of drawings]

FIG. 1 is an exploded view of a preferred embodiment of a mask embodying the present invention.

FIG. 2 shows the use of the invention on the user's nose and mouth for protection.

3 is a partial cross-sectional view of FIG. 2 showing the exhalation of a user being expelled from the mask through a flexible exhaust tube.

FIG. 4 is another partial cross-sectional view of FIG. 2 showing the flow of outside air guided to the mask.

[Explanation of symbols]

 1 Main Body 2 Exhaust Pipe 3 Protective Cover 4 Curved Upper Edge 5 Nose Part 6 Tube Holder 7 Curved Surface Part 8 Air Filtration Lining 9 Vent Hole 10 Peripheral Edge 11,12 Fixing Belt 13,14 Fixing Element 15 Outward Flange 16 Mask 17 Gap 18 Airway

Claims (1)

[Scope of utility model registration request] 1. A body with a layer of air filtration lining having ventilation holes mounted thereon, and two opposite sides secured to the body fixed to the head above the nose and mouth to prevent inhalation of harmful substances. A flexible taper that is connected to the nose portion above the nose, an elliptical hole under the nose portion, and the elliptical hole for exhalation from the lungs. A mask having a tubing and a protective cover over the flexible tapered tubing, the flexible tapered tubing having a one-way valve means through which exhaled air from the lungs passes.