JPH0244768Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a simple mask for work in air-polluted areas, such as spraying pesticides and insecticides, or for protection against cold and colds. This invention relates to a simple mask that prevents glasses from fogging up when the mask is used.

(Prior art) Conventionally, as described in Japanese Utility Model Application Publication No. 56-133847, a viscous material is applied to the entire periphery of the mask or the upper part of the periphery of the mask, thereby bringing the mask and face into close contact and preventing breathing. There was a known product that prevented glasses from fogging up by preventing them from leaking. However, with this conventional mask, the stickiness of the viscous material decreases when worn repeatedly.
This created a non-adherent area where the face and mask came into contact, causing problems such as breath leakage and fogging of glasses.

Also known is the one described in Japanese Utility Model Publication No. 58-22756. This mask has a roughly half-moon-shaped elastic seal plate that is fixed to the upper inner side of the mask so that it can extend, and is attached to the face in an extended state, so that the roughly half-moon-shaped elastic seal plate is brought into close contact with the face and the upper part of the mask. This prevents breath from escaping and prevents glasses from fogging up. However, with this conventional mask, there was a problem that non-contact areas were created in the contact areas other than the upper part of the mask, resulting in breath leakage and fogging of the glasses. Furthermore, since the front surface of this mask is constituted by the border plate and the breathable thin plate, there is a problem in that the border plate reduces the air intake and exhaust area. Furthermore, since this mask has a large number of components, manufacturing becomes complicated, resulting in an increase in cost. Furthermore, this mask has many layers of air intake and exhaust surface parts, so there is a large resistance during air intake and exhaust, and the air pressure inside the mask increases during exhaust, making it easy for non-adhesive areas to form where the mask contacts the face. The resulting non-contact area caused problems such as breath leakage and fogging of the glasses.

(Problems to be Solved by the Invention) The present invention is a simple mask that prevents the wearer from wearing the simple mask over and over again, which reduces the adhesion between the simple mask and the face, causing breath leakage, which prevents glasses from fogging up. This is what we are trying to provide. Another object of the present invention is to provide a simple mask that prevents glasses from fogging up due to exhaust air from the intake and exhaust surfaces of the simple mask. Furthermore, the present invention aims to reduce the number of parts constituting the simple mask and provide a simple mask that is inexpensive to manufacture.

(Means for solving the problem) The present invention consists of a mask body (hereinafter referred to as the mask body) whose entire surface covering the nose and mouth is breathable, and a mask body that covers the nose inside the mask body when inhaling. It consists of an inner non-breathable film adhered to the periphery of the mask body so as to form a gap with the main body, and a band-shaped non-breathable film adhered to the periphery of the mask body so as to protrude from the periphery of the mask body. It's a simple mask.

Note that the mask body referred to here is a component that constitutes a simple mask that has a filtration function that performs air intake and exhaust air. The gap is a space created between the mask body and the inner non-breathable film when the simple mask is worn and air is inhaled. The inner non-breathable film is a component that prevents breath from coming out from the surface that covers the nose inside the mask body. The band-shaped non-breathable film is a component that prevents breath from leaking from the non-contact area where the mask body and face come into contact.

(Function) Therefore, in the present invention, by adhering an inner non-breathable film to the surface covering the nose inside the mask body around the mask main body, when inhaling air, the inner non-breathable film is attached to the mask main body and the inner non-breathable film. A gap is created between the mask body and the mask body, and when exhausting air, the inner non-breathable film can be brought into close contact with the mask body. This prevents air from escaping from the mask body, which the inner non-breathable film is in close contact with, and prevents breath from entering the glasses.
In addition, by adhering a band-shaped non-breathable film that protrudes from the periphery of the mask body to the periphery of the mask body, it is possible to prevent breath from leaking from non-contact parts that come into contact with the mask body and the face. This prevents breath from getting into the glasses.

(Example) Hereinafter, the present invention will be explained in detail based on the example shown in the drawings.

FIG. 1 is a developed view of the inside of a simple mask showing an embodiment of the present invention. In this figure, the mask body 1 is formed of a powder-containing laminated sheet in which powder such as activated carbon or toxic gas absorbing resin having a filtration function is sandwiched between two sheets, and the adhesive parts 21 and 41 are attached to the inner side. It is thermally bonded to the non-breathable film 2. This inner non-breathable film 2 is made of non-breathable soft resin, etc., and after being molded to fit the shape of the attachment part of the mask body 1, it is attached to the adhesive parts 21, 41 with a width of 3
It is thermally bonded with a thickness of mm to 5 mm. The band-shaped non-air permeable film 3 is attached to the bonding portions 31 and 41 by thermal bonding. This strip-shaped non-breathable film 3 has a width of 10 mm to 15 mm.
It is made of a band-shaped non-breathable soft resin or the like, and is thermally bonded to the adhesive parts 31 and 41 of the mask body 1 with a width of 3 mm to 5 mm. As shown in FIG. 1, the mask is made by thermally bonding the inner left periphery 11a and the inner right periphery 11b of the mask body 1 to form a simple mask M having a substantially conical shape.
It is formed as. When this simple mask M is worn and air is inhaled, a gap 51 is created between the mask body 1 and the inner impermeable film 2, as shown in FIG. 2, and air can be inhaled from the entire surface of the mask body 1. In addition, when exhausting air, the mask body 1 and the inner non-breathable film 2 are in close contact with each other, preventing breath from coming out from the surface of the mask body that covers the nose, which is the surface that is in close contact with the inner non-breathable film 2, and preventing the glasses from coming out. It's getting less cloudy. Furthermore, the band-shaped non-breathable film 3 eliminates the non-contact areas that occur around the mask body 1, preventing breath leakage and preventing the glasses from fogging up. It's summery.

(Effects of the invention) In this invention, an inner non-breathable film is attached to the mask body and the surface that covers the nose on the inside of the mask body, so that when air is inhaled, the inner non-breathable film A gap is created between the film and the mask, allowing air to be taken in from the entire surface of the mask body.
The intake efficiency is better than that of a simple mask in which the entire surface of the mask is made up of a conventional border plate and a thin breathable plate. Furthermore, by exhausting the air, the mask body and the inner impermeable film come into close contact with each other, and the gap disappears. This prevents breath from coming out from the surface of the inside of the mask body that covers the nose, making it possible to eliminate the fogging of glasses that conventionally occurs due to breath coming out from this surface. Furthermore, since a band-shaped non-breathable film that protrudes from the periphery of the mask body is adhered to the periphery of the mask body, fogging of the glasses due to breath leakage from the non-contact area that conventionally occurs at the contact area between the mask body and the face is avoided. can be eliminated. In addition, the simple mask consists of three components: the mask body, the inner impermeable film, and the strip-shaped impermeable film, and the simple mask can be manufactured by simply gluing the three parts together, so it is extremely easy to manufacture. Therefore, manufacturing cost is low.

[Brief explanation of the drawing]

FIG. 1 is a developed view of the simple mask of the present invention, FIG. 2 is a vertical cross-sectional view of the simple mask of the present invention, and FIG. 3 is a diagram showing the state in which the simple mask of the present invention is worn. Explanation of symbols, 1: Mask body, 2: Inner non-breathable film, 3: Strip-shaped non-breathable film, 21,
31, 41: Adhesive part, 51: Gap.

Claims (1)

[Scope of utility model registration request] A mask that is designed so that a gap can be formed between the mask body whose entire surface is breathable, which covers the nose and mouth, and the face that covers the nose inside the breathable mask body, and the breathable mask body when inhaling. A simple mask comprising an inner non-breathable film adhered to the periphery of a main body, and a band-shaped non-breathable film adhered to the periphery of the breathable mask body so as to protrude from the periphery of the breathable mask body.