JP7166417B1 - dust mask - Google Patents

Abstract

An object of the present invention is to provide a mask capable of safely protecting a polishing operation of magnetic metal at a low cost. [Solution] Neodymium magnets of the same size are pasted at intervals created by the repulsion so that a horizontally long iron plate is bent along the curve of the upper lip and repels each other, and it is placed inside the mask just below the nose. Invention of a dust mask arranged with a pocket in place. [Selection drawing] Fig. 2

Description

The present invention relates to a dust mask having a function of collecting magnetic metal dust.

It is normal to wear a dust mask when polishing magnetic metals, but there are no products specifically designed for magnetic metals on the market. The cost is too high, and in most cases, it is shared by small subcontractors, and the workers are always exposed to the danger of iron lung.

Japanese Utility Model Publication No. 48-001997 Japanese Utility Model Laid-Open No. 60-005411 Chinese Utility Model No. 203886044

Toshiba air purifier CAF-D4 product manual

Regarding Patent Documents 1 and 2, a permanent magnet and a magnet piece are embedded in a mask. At that time, both were ferrite magnets, but the magnetic force was too weak to completely attract them. It is not available because it is not sold.

With respect to Patent Document 3, it is used by inserting a tube into both nostrils, and if used every day, the mucous membrane of the nose becomes inflamed, and it cannot withstand 8 hours of use every day. It catches only dust, but absorbs all other dust.

According to Non-Patent Document 1, by passing air through the magnetic field of the ferrite magnet, electromagnetic induction generates a large current in proportion to the flow velocity and the strength of the magnetic force against viruses and bacteria, resulting in sterilization ability. Therefore, there is a good possibility that the present invention will have a similar effect, but since it is impossible to verify it by an individual, here, we will limit ourselves to the expression that "the sterilization ability to kill viruses and germs can also be expected." .

To inexpensively provide a mask for protection from magnetic metal dust.

Therefore, the present invention provides a dust mask having an adsorption portion that magnetically adsorbs magnetic metal dust, and has a function of capturing magnetic metal dust immediately before suction, in which the adsorption portion is composed of two neodymium magnets having a predetermined shape. It is fixed to the surface of the support plate in a state of being left and right aligned with a space, and is detachably attached by a predetermined holding means directly below the nostril opening on the inner surface of the cloth mask body. It is characterized in that the neodymium magnets are supported on the left and right nostrils at positions facing each other.

In this case, the pair of neodymium magnets is characterized by being worn with cloth, so that the neodymium magnets and magnetic metal dust do not come into direct contact with the skin.

In this case, the cloth is a cloth for forming a pocket provided on the inner surface of the cloth mask main body, and the pocket is characterized by forming a holding means. Multiple masks can be washed and reused, and the adsorption part can be removed and cleaned with an air blow.

Furthermore, in the dust mask described above, the pair of neodymium magnets are flat plates having the same shape and size, and are spaced apart from each other by a predetermined distance.

Furthermore, in the dust mask described above, the supporting plate is optimally made of a horizontally long iron plate, and is characterized in that the central portion in the longitudinal direction is bent along the curve of the upper lip.

Furthermore, the above-mentioned pair of neodymium magnets are characterized in that they are fixed so as to magnetically repel each other. As a result, the magnetic flux density increases, which leads to the amplification of the magnetic force, and the ability to attract magnetic metal dust is further improved. did.

The present invention, in which a pair of neodymium magnets are provided on the inner surface of a cloth mask, has made it possible to provide a mask that can protect against magnetic metal dust at a low cost.

When the test subject wore the mask of the present inventor's invention every day and continued the polishing work, SpO2 = 96%, and after one year of use, SpO2 recovered to 99%. It is a numerical value that quantitatively indicates that there is an effect.

Drawing substitute photo of mask with pocket Longitudinal cross-sectional view showing the positional relationship between the mask, neodymium magnet, and nose (image) FIG. 3 is a top view of a suction portion configured by fixing a neodymium magnet 4 to a support plate 5; Front view of a suction unit configured by fixing a neodymium magnet 4 to a support plate 5. Actual photograph of the adsorption part with a neodymium magnet attached to the support plate Photo showing how to measure the distance that can be adsorbed Photo showing the suckable distance measurement A photograph showing the state of magnetic metal dust that has been adsorbed after one day of use.

When the inventor of the present application went to help a small company with iron polishing work, it was found that the worker was inhaling a considerable amount of magnetic metal dust, leading to the present invention.
Contents: The protective equipment was basically a PM2.5 compatible protective mask against floating magnetic metal dust, but after working for a day, both sides of the nose and cheeks were full of fine magnetic metal dust, and a certain amount of magnetic metal It was clear that there was dust inhalation. The next day, I brought a pulse oximeter and measured the SpO2 of all the workers, excluding the inventor of the present application. I felt the need for countermeasures, and consulted with the president. They said that the budget to add a mask, the gas mask type dust mask on the market, and the N95 mask are expensive, and the filters are frequently replaced, so they can't afford it. As a result, it became necessary to invent a mask that magnetically attracts magnetic metal dust that satisfies the following conditions.

The pulse oximeter showed 97%, the same as the pulse oximeter at the hospital, when it was lent to a hospital patient who had withdrawn from oxygen inhalation. This confirms that the pulse oximeter of the inventor of the present application has traceability.

For magnetic metal dust collection, we thought that by placing one neodymium magnet directly under each nostril, we could capture 100% of the magnetic metal dust just before it was inhaled. However, neodymium magnets have a strong magnetic force. Too much, if you put two or more at the same time, the magnets will stick to each other and you can't put them on the mask with a gap. How to implement the above plan: The support plate is a horizontally long iron plate, and neodymium magnets are attached so that they magnetically repel each other. See 4) A pocket is sewn on the cloth mask body, which is used as an adsorption part for magnetically adsorbing magnetic metal dust, at a position where the neodymium magnet can be stored directly under the nose. Insert the support plate with the attached with the neodymium magnet facing the face, and attach the cloth mask body Fig. 2 Be sure to put a cloth between the neodymium magnet and the face. , (2) Improvement of wearing feeling.

Neodymium magnets are spaced from 5mm to 8mm left and right for the following reasons:1. 2. To secure the passage of air. 3. Make sure the neodymium magnet is right under your nostrils. The magnetic repulsion of the neodymium magnets maximizes the magnetic flux density between the neodymium magnets, and the space between the neodymium magnets is limited to 5 mm to 8 mm in order to maintain the compression of the magnetic flux density.
Therefore, the magnetic force is many times higher than that of a single neodymium magnet, and the magnetic flux density is maximum between the magnets, and gradually reaches the magnetic flux density of a normal neodymium magnet toward both ends. There is a purpose for the above. In addition, although it is often thought that an object having ordinary knowledge in the technical field pertaining to this invention could have been easily invented, the invention of the neodymium magnet was in 1984, and now that 36 years have passed, the inventor of the present application is the first person to develop a nasal magnet. The patent application for a dust mask with a neodymium magnet placed directly underneath shows a track record that could not be easily invented by those with common knowledge for 36 years.

Investigation of the distance that magnetic metal dust can be adsorbed Gradually bring the magnet, the end surface and the back surface of the magnet attached to the support plate to the material obtained by cutting # 16 iron wire to 2 mm on the end surface of the tape by the method shown in Fig. 5 and attract it. As shown in Fig. 6, the mass of the test material was measured to be 1000 times or more that of the magnetic metal dust. was multiplied by the safety factor, and measured as the distance that can be adsorbed.
Result: 15mm magnet surface and end face
The support plate for attaching the magnet is 12mm on the end face and the back face.
The above is the magnetic metal dust adsorption possible range multiplied by a sufficient safety factor of 3.

Embodiments for carrying out the present invention will be described in detail below with reference to the drawings.

Therefore, the present invention provides a dust mask having a function of capturing magnetic metal dust immediately before suction (see FIG. 2) by providing an adsorption portion (FIGS. 3 and 4) that magnetically attracts magnetic metal dust. is fixed to the surface of the support plate 5 in a state in which two neodymium magnets 4 of a predetermined shape are arranged side by side at a predetermined interval, and are holding means below the nostril openings on the inner side of the mask body 2 made of cloth. It is detachably attached to the pocket 1, and is characterized in that a pair of parallel neodymium magnets 4 are supported at positions opposed to the left and right nostrils, respectively.

In this case, the suction part 6 is characterized by being attached with a cloth (see 1 pocket in FIG. 1).

In this case, the cloth is a cloth for constituting a pocket provided on the inner surface of the cloth mask main body 2, and the pocket is characterized by constituting a holding means. It is easy to take off, a plurality of masks can be washed and reused, and the suction part 6 can be removed and cleaned with an air blow (see FIG. 1).

In the dust mask described above, the pair of neodymium magnets 4 are flat plates having the same shape and size, and are spaced apart from each other by a predetermined distance (see FIGS. 3 and 4). The dimensions of the neodymium magnet 4 are preferably, for example, within the range of diameter φ15 mm to φ17 mm×thickness t3.5 mm to t2.5 mm because the mask does not shift due to weight, but the size is not limited.

Furthermore, in the dust mask described above, the support plate 5 is optimally made of a horizontally long steel plate, and is characterized in that the central portion in the longitudinal direction is bent along the curve of the upper lip, as shown in FIGS. and

Furthermore, the above-mentioned pair of neodymium magnets 4 are fixed in the direction of mutual magnetic repulsion. It improved further (see Fig. 8).

Fig. 1. Mask with pocket This mask has a structure in which the upper end is not sewn, so one piece of cloth is left in front of the pocket, and the upper end is sewn and sewn in a U-shape to create a pocket and serve as a holding means.

In addition, although the ability to sterilize viruses and germs as described in paragraph 0007 can be expected, it cannot be verified by individuals, so verification is a future task.
Also, if it turns out that this mask has sufficient sterilization ability, there is a possibility that the pandemic will become the global standard for sterile masks.
We want to tie up with mask manufacturers, universities, and research institutes.

1 Pocket 2 Cloth mask body 3 Magnetic metal dust adsorption range with sufficient safety factor 4 Neodymium magnet 5 Support plate 6 Adsorption part

Claims (6)

A dust mask having a suction part for magnetically attracting magnetic metal dust and having a function of capturing magnetic metal dust immediately before suction, wherein the suction part has two neodymium magnets of a predetermined shape arranged side by side at a predetermined interval. It is fixed to the surface of the support plate by , and is detachably attached by a predetermined holding means directly below the nostril opening on the inner surface of the cloth mask body, and the pair of neodymium magnets arranged in parallel are attached to the left and right nostril openings. A dust mask characterized in that it is supported at positions facing each other with respect to the part. 2. The dust mask according to claim 1, wherein the pair of neodymium magnets are attached to the sides facing the nostril openings with a cloth applied thereto. 3. A dust mask according to claim 2, wherein said cloth is a cloth for constituting a pocket provided on the inner side surface of said cloth mask body, and said pocket constitutes said holding means. 4. A dust mask according to claim 1, 2 or 3, wherein said pair of neodymium magnets are flat plates having the same shape and size and are spaced apart from each other by a predetermined distance. 5. A dust mask according to claim 1, 2, 3, or 4, wherein said support plate is a horizontally long iron plate, and the central portion in the longitudinal direction thereof is bent along the curve of the upper lip. 6. A dust mask according to claim 1, 2, 3, 4, or 5, wherein said pair of neodymium magnets are fixed so as to magnetically repel each other.

Images