KR102389025B1 - nose fitting modulator - Google Patents

Abstract

The present invention relates to a nose fitting adjuster. Specifically, it relates to a nose fitting adjuster that can seal a part of a device including a part that closely adheres to the nose, such as a mask, goggles, gas mask, or VR headset, without directly pressing strongly on the peripheral part including the nose. .

Description

nose fitting modulator {nose fitting modulator }

The present invention relates to a nose fitting adjuster. Specifically, it relates to a nose fitting adjuster that can seal a part of a device including a part that closely adheres to the nose, such as a mask, goggles, gas mask, or VR headset, without directly pressing strongly on the peripheral part including the nose. .

According to the World Health Organization (WHO), fine dust and ultrafine dust refer to particulate matter with particle diameters of 2.5 μm and less than 1.0 μm, respectively. In order to prevent such fine dust, it is necessary to wear a mask that meets the standards accurately.

The problem of being lifted without being in close contact with the face is a common problem found in goggles, gas masks, and VR headsets, including masks. The peripheral part including the nose is more curved than other parts of the face, the skin is thin, so there is little buffering action, and it is difficult to accurately adhere to the face because of the high height. It is also an area that leaks more easily as the facial muscles move when breathing or talking.

In order to solve the above problem, a deformable elastic body is inserted or attached to the surface of the mask, including the nose, but it is still not in close contact with the face. Even if the metal such as wire used in most masks is deformed and the mask is in close contact with the face for a while, there is no part to support it, so there is a gap again as the facial muscles move. This problem is very simple, and it seems that it has already been solved, but in reality, it remains an unfinished state that has not been solved for a long time.

Movement of the facial muscles due to conversation or the like brings about movement of the mask. When it is necessary to wear a mask for a long time like COVID-19, skin damage occurs due to friction between the bridge of the nose and the mask. Medical staff such as nurses attach bandages or bandages to the bridge of the nose and wear masks over them to prevent skin damage caused by frequent friction.

The resilient sealing part, such as silicone, strongly presses the surrounding area, including the nose, through a band mounted behind the head to increase the adhesion to the face. It is difficult to wear for a long time because the force that pressurizes the surrounding area including the nose is large. In addition, the problem that women avoid by leaving marks on the face is a task that needs to be addressed.

Masks and gas masks are devices that block the flow of air, but VR headsets require airflow and light blocking at the same time. When wearing a VR headset, if the surrounding areas including the nose are not sealed, there is a problem of reduced concentration due to light exposure. All of the currently released products do not seriously consider these problems and present an unfinished technology that presses strongly like a gas mask as a solution.

Patent Document 1 relates to an inexpensive mask for the purpose of not leaking the respiratory tract, selecting an optimal pore filter part, relieving suffocation, and providing a function to prevent spillage of glasses. It is composed of a fixing frame part with good adhesion to the skin contact part, a filter part that can be separated and attached freely, and a mounting part for fixing to the face. Each part is made of a different material and functions are shared. A notch is placed in the skin-contacting part of the fixing frame to enlarge the contact area by the tension of the mounting part, and a shape-memory resin or skin-adhesive resin that contracts with the temperature of the skin is used as a material. For the upper part of the contact part, an elastic resin that expands and contracts in response to facial muscle and skeletal deformations in conversations and changes in facial expressions is used. The filter part can be separated from the fixing frame part, and a mask is provided in which the necessary material can be selected according to the purpose.

Patent Document 2 relates to a mask including a part for sealing the nose, and provides a mask having an improved nasal sealing part that covers at least one of a user's nose and mouth because breathing gas is supplied under positive pressure, and the first paddle and a second paddle.

Patent Document 3 relates to a mask with a nose pad attached, which is composed of a mask body, a nose pad, and an inner layer wrinkle, the mask body has an outer layer surface, an intermediate layer surface and an inner layer surface, the nose pad is disposed on the outer layer surface, and the inner layer A mask is provided in which the pleats extend from the inner layer surface and are formed by folding, the inner layer pleats and the outer layer surface simultaneously covering the nose pad and protrusions corresponding to the nose pad formed on the mask body.

Patent Document 4 relates to a close-fitting mask provided with an elastic band, comprising a secondary adhesion part having elasticity and flexibility along the edge of the mask body, and wrapping the user's nose on the inner upper part of the mask body from above A nose pad is provided, and a lower side membrane is provided in the form of a closed curve downward from both sides of the nose pad to wrap around the nose and mouth, and the lower side membrane edge is made of an elastic and stretchable material for close contact with the skin. It is characterized in that the adhesion part is constituted and a separate elastic band having elasticity is provided at the upper position as one side of the secondary adhesion part to increase the adhesion force of the nose pad 40 to the bridge of the nose to prevent upward leakage of internal air. .

Patent Document 5 relates to a mask, and the center of the cover is provided with a receiving groove to be accommodated while the nose bridge is inserted, and the space formed between the nose bridge and both cheekbones under the eyes of the face on both sides of the receiving groove is inserted into the skin It provides a mask provided with a sealing means provided with a protrusion to be in close contact with the.

Patent Document 6 relates to a mask capable of preventing gas from flowing into the mask without being filtered by a filter sheet, and provides a mask including a nose clip and/or a nose pad.

Patent Document 7 relates to a dust-proof mask that prevents fine dust from entering the respiratory tract, and by forming an upper cover part having a nose support part formed on the inner surface at the top and bottom and a lower cover part having a chin support part having an air exhaust part formed therein, the user can use the mask It provides a mask that can be easily worn with the nose support part formed on the upper cover part in close contact with the nose without additional manipulation when wearing the mask.

Patent Document 8 relates to an eco-friendly traditional Korean paper mask, the mask body 100 is formed to match the curvature of the face to shield the mouth and nose, and the fixing strap formed on both sides of the mask body 100 to be able to be hung on the ear (200) enjoys the unique functions of traditional Korean paper, effectively adsorbing and filtering fine dust, pollutants, and various harmful bacteria, while maintaining a comfortable state for a long time due to excellent breathability, heat retention, quick-drying and antibacterial properties, especially harmful to the human body It provides eco-friendly masks that children and the elderly can use with confidence.

In this way, Patent Documents 1 to 8 have known various means for close contact with the mask and the surrounding area including the nose.

In the prior art, 1) the degree of adhesion is weak even if it is temporarily adhered in the wearing state, and 2) the user's muscles cannot but move, so the adhesion is easily weakened by the movement of the facial muscles, as well as the skin such as the bridge of the nose. Skin damage occurs due to frequent friction with Because it provides a form that strongly compresses the area, in the case of a female user, makeup is removed and therefore avoids wearing it. Since the degree of adhesion varies depending on the level of skill, there is a problem that incomplete adhesion may be achieved for users who are not familiar with the control of devices or instruments, such as the elderly and children.

Japanese Patent Application Laid-Open No. 2011-000430 ('Patent Document 1') Japanese Patent Application Laid-Open No. 2019-030698 ('Patent Document 2') Japanese Patent Publication No. 3222972 ('Patent Document 3') Japanese Patent Publication No. 5011294 ('Patent Document 4') Republic of Korea Patent Publication No. 10-2012157 ('Patent Document 5') Republic of Korea Patent Publication No. 2011-0009652 ('Patent Document 6') Republic of Korea Patent Publication No. 2017-0000048 ('Patent Document 7') Republic of Korea Patent Publication No. 2017-0072094 ('Patent Document 8') Republic of Korea Patent Publication No. 2019-0032897 ('Patent Document 9')

The present invention is to solve the above problems, 1) the degree of adhesion is strong, 2) not only keeps the adhesion even when the facial muscles move, but also minimizes friction with the face, 3) wears a mask, etc. The degree of adhesion is not weakened even by the vibrations that occur in cases where the adhesion is not weakened, 4) the area to be pressed for adhesion is minimized, 5) the extent of pressure is easily adjusted according to the height of one's nose, and 6) the device for the elderly and children, etc. The purpose of the present invention is to provide a nose fitting adjuster capable of sealing the periphery including the nose, which can provide more than a certain level of adhesion even to users unfamiliar with adjusting the instrument.

In order to achieve the above object, the present invention provides a cover that covers at least a portion of the user's nasal cartilage and its periphery, and 1) the user's nasolabial fold region, 2) the user's A nose fitting regulator comprising a levator labii superioris muscle or a levator labii superioris alaeque nasi muscle, and 3) a fixing part that closes the cover with the user's skin by compressing only the overlapping portion of the outer periphery of the user's nostril (alar crease) In
The fixing part does not directly press the user's nose, the fixing part is fixed by a separate support part provided on the outside of the cover part, and the part where the fixing part is fixed to the support part is located on the front part of the user's face, The maximum range in which the cover part can be disposed is from above the tip-defining points up and down to the lower end of the nasal bone, and to the left and right, it is between the cheekbones of the user's face, and the cover part is connected to the skin and the skin by the fixing part. When in close contact, 1) the relative position of the cover part pressed by the fixing part is fixed, and the cover part is in close contact with the skin by extending the cover part, or 2) the relative position of the cover part pressed by the fixing part is not fixed, As the cover portion is deformed according to the contour of the nose, the cover portion is in close contact with the skin, or 3) the relative position of the cover portion pressed by the fixing portion is not fixed, and the cover portion is also stretched so that the cover portion is in close contact with the skin A nose fitting adjuster is provided.
In this case, the fixing part does not directly press the user's nose. In addition, the fixing part is fixed by a separate support part provided on the outside of the cover part.
1) a first fixing part for pressing the first pressing part that is at least a part of the nasolabial fold region of the user on the outer surface of the cover part to make the cover part close to the user's skin; 2) On the outer surface of the cover part, the cover part of the user by pressing the second compression part which is at least a part of the user's levator labii superioris muscle (see FIGS. 2 and 3) or levator labii superioris alaeque nasi muscle (see FIG. 2) a second fixing unit in close contact with the skin; 3) a third fixing part for pressing the third pressing part, which is at least a part of the outer periphery of the user's alar crease, from the outer surface of the cover part, so that the cover part is in close contact with the user's skin;

In the present invention, an additional fixing unit for pressing at least a portion of the user's nasal cartilage may be provided on the outer surface of the cover, and the degree of compression of the fixing unit may be stronger than that of the additional fixing unit.

At least one of a point, a line, or a plane in which the fixing part and the additional fixing part press is in the form of at least one, and the fixing part and the additional fixing part press in at least one part.

Specifically, the portion pressed by the additional fixing unit may be configured in the form of a fine protrusion.

The shape of the fixing part and the additional fixing part is at least one of a point, a line, a plane, or a three-dimensional shape.

The fixing unit may press an additional pressing unit on the outer surface of the cover in addition to the first to third pressing units, and the additional pressing unit may be in the form of at least one of a point, a line, or a surface. The additional pressing part may be any part except for the first pressing part to the third pressing part among the parts where the cover part can be disposed, and a plurality of parts may be selected.

The direction in which the fixing part and the additional fixing part press on the outer surface of the cover part is a direction perpendicular to the user's skin, a wrinkle direction formed on the user's face, a direction perpendicular to a wrinkle formed on the user's face, or the user's nose It may be a direction along the outer periphery, an inward or outward direction of the outer periphery of the user's nose, a muscle direction around the user's nose, or a combination of these directions.

The maximum range in which the cover part can be disposed is up and down from above the tip-defining points to the lower end of the nasal bone, and left and right up to the cheekbones of the user's face.

When the cover part is in close contact with the skin by at least one fixing part of the first fixing part to the third fixing part, 1) the relative position of the cover part pressed by the fixing part is fixed, and the cover part is stretched by elongating the cover part or 2) the relative position of the cover portion pressed by the fixing portion is not fixed, and the cover portion is deformed according to the contour of the nose, so that the cover portion is in close contact with the skin, or 3) the cover pressed by the fixing portion The relative position of the part is not fixed, and the cover part is also stretched so that the cover part can be in close contact with the skin.

The fixing part and/or the additional fixing part is fixed by a separate support part provided on the outside of the cover part. The fixing part and/or the additional fixing part is fixed to the support part as at least one part in the form of one or more points, lines, and planes. In addition, the fixing part and/or the additional fixing part may be in a form capable of movement including rotation, movement, and twisting while being fixed to the support part.

In a specific form, the fixing part and/or the additional fixing part presses the cover part and the fixing part and/or the additional fixing part are connected by an elastic material that can have a bent part between the part fixed by the support part. it could be

The material of the cover part and the support part may be an elastic material or a non-elastic material.

The nose fitting adjuster according to the present invention is not limited only to the mask, and any conventional mask, goggles, gas mask, VR headset, etc., that can be worn on the front of the face may be applied.

The present invention can be provided by any combination of the above inventions.

The present invention provides a nose fitting adjuster including at least one fixing part of a cover part and a first fixing part to a third fixing part covering at least a portion of the user's nasal cartilage and its periphery, whereby the cover part and the user 1) strong adherence to the skin, 2) maintaining adherence even when facial muscles move, and minimizing friction 3) not weakening adherence even by vibrations generated when moving while wearing a mask, 4) The area to be pressed is minimized for close contact, 5) the degree of pressure can be easily adjusted according to the height of one's nose, and 6) the elderly, children, etc. It is possible to provide a nose fitting adjuster that can seal a perimeter including a nose that can provide.

1 to 3 are anatomical schematic diagrams showing the face in which the fixing part of the nose fitting adjuster according to the present invention can be disposed.
4 to 69 show various examples of the nose fitting adjuster according to the present invention.
70 to 72 are the first according to the present invention in the conventional mask (KF 94) in order to measure the official leak rate according to the nose fitting regulator according to the present invention, in a state in which the fitting function of the conventional mask itself is not used. This is a photo of a fixing part that can adhere to the fixing part to the third fixing part in the form of a metal clip and tried on.
73 is an elastic body that is fixed only on the left and right sides of the user's face in order to check the displacement according to the presence or absence of the nose fitting adjuster according to the present invention, and the user tried-on to track the change in the position of the elastic body in the vicinity of the nose using a motion sensor It's a photo.
FIG. 74 is a result of observing positional displacement using FIG. 73 .

Hereinafter, embodiments in which those of ordinary skill in the art to which the present invention pertains can easily practice the present invention will be described in detail with reference to the accompanying drawings. However, when it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention in describing the operating principle of the preferred embodiment of the present invention in detail, the detailed description thereof will be omitted.

In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions. Throughout the specification, when a part is said to be connected to another part, it includes not only a case in which it is directly connected, but also a case in which it is indirectly connected with another element interposed therebetween. In addition, the inclusion of any component does not exclude other components unless otherwise stated, but means that other components may be further included.

Hereinafter, the present invention will be described in more detail through examples. However, these examples are for illustrative purposes only, and the scope of the present invention is not limited to these examples.

The nose fitting adjuster according to the present invention is a device for sealing the periphery, including the nose. In the case of masks, goggles, gas masks, and VR headsets, the sealing of the surrounding areas including the nose is not perfect, so this is to improve this.

The cover according to the present invention covers at least a portion of the user's nasal cartilage (including lateral nasal cartilage, major alar cartilage, and minor alar cartilages in FIG. 1) and its periphery. Except for the portion in direct contact with the face, the remaining face may be coupled to a face attachment device such as a mask, goggles, gas mask, VR headset, or the like, or coupled to a support.

4 shows an exemplary mask with a nose fitting adjuster according to the present invention. The cover part according to FIG. 4 is displayed in light gray. The dark gray is the part exposed to the outside of the cover part, and the light gray shows the part that is not visible because it is covered by the body of the mask. At least a portion of the remaining lower curved lines of the cover except for the upper curved line in contact with the face is coupled to the mask.

In FIG. 4 , a solid black line surrounding the entire face represents the outermost part of the mask. The cover part of FIG. 4 may be an elastic fabric. At least a portion of the remaining lower curved lines except for the upper curved line in contact with the face of the cover part is coupled to the mask. By pressing the portion (indicated in red) including the outer periphery of the nostrils on the outer surface of the cover, the cover can be in close contact with the skin. In the case of FIG. 4, by pressing the outer periphery of both nostrils of the nose, the cartilage part of the nose can be stretched or deformed without any pressure to be in close contact with the nose.

4 shows that the device attached to the face is a mask, so the cover part becomes the upper boundary surface and the lower boundary surface becomes the mask body. If the nose fitting adjuster according to the present invention is applied to a device to be attached around the eyes, such as a VR headset, the cover portion forms a lower interface.

5 to 28 show in detail that the portion pressed by the fixing unit is in the form of a dot or a line.

5 to 16 are diagrams only for the cover part and the fixing part for fixing it. Marked in gray is an example of the cover part according to the present invention. The cap may cover the nostril and its periphery ( FIGS. 5 to 7 , 11 to 13 ) or cover the upper end of the cartilage and its periphery ( FIGS. 8 to 10 , 14 to 16 ).

In FIGS. 5 to 16 , black dots indicate a portion in which the fixing part presses the cover from the outer surface of the cover toward the user's face. The red circle of the dotted line indicates the part where the fixing part is fixed to the support part. A black line in the center and a red waveform in the periphery indicate that the part to be compressed is in the form of a line. Fig. 4 also shows the shape of the line to be pressed. The position of the black point pressing the cover part can be changed by elasticity.

The fixing part shown as an example in FIGS. 5 to 16 is in the form of a spring having elasticity, and one end is fixed to the support part and the other end presses the cover part from the outer surface of the cover part toward the user's face. Between the part where the fixing part presses the cover part and the part where the fixing part is fixed by the support part is a straight line (FIGS. 5, 6, 8, 9, 12, 16) or a bent part (FIGS. 7, 10, 11, 13. 14) is formed. One or more bends ( FIGS. 11 and 13 ) are also possible.

A shape having a straight line or a curved part can be changed in design depending on the direction in which the fixing part presses. The direction in which the fixing part presses on the outer surface of the cover is a direction perpendicular to the user's skin (FIGS. 5, 6, 8, 11), a direction of wrinkles formed on the user's face, or a direction perpendicular to the wrinkles formed on the user's face (Fig. 11), or a direction along the outer periphery of the user's nose (FIG. 12), an inward or outward direction (FIGS. 6, 7, 13) of the user's outer periphery, or a muscle direction around the user's nose (FIGS. 9, 14) Or, it may be a complex combination of the above directions ( FIGS. 10 and 15 ).

On the other hand, the relative position of the cover part pressed by the fixing part may or may not be fixed. In FIGS. 5 to 16 , the position of the black dot of the portion pressed by the fixing unit with respect to the relative position of the cover portion pressed by the fixing unit may be changed due to the elasticity of the fixing unit.

5 to 7 and 11 to 13, the fixing part corresponds to the first fixing part, the second fixing part, or the third fixing part, and FIGS. 8 to 10, 14 to 16 correspond to the second fixing part. 5 to 16 , the fixing part is symmetrically disposed around the nose. In the examples of FIGS. 5 to 16 , one fixing part is configured in the form of a point where one pressurizing part is located. However, one (FIG. 5 to 12, 14, 15) or two (FIG. 13, 16) parts where one fixing part is fixed to the support part constitute an example.

Figures 17 to 22 are in addition to the configuration of Figures 5 to 16, a connecting portion for connecting the fixed portion symmetrically arranged around the nose is added. However, even in the configuration of FIGS. 17 to 19 , the elastic spring-shaped central part still does not directly press the nose. In this case, the spring forming the fixing part is composed of one body.

23 to 28 show various embodiments for a case in which two or more parts are fixed to the support part and there are two or more bent parts in the configuration of FIGS. 5 to 16 . This structure can be changed in design according to the shape of the device attached to the face or the part to be pressed. 23 to 28 may also be configured by deforming one body.

This shape is also deformable depending on the position of the support. If the support part is formed near the face, the fixing part will be arranged along the facial part, and if the support part is formed at a position spaced apart from the facial part, the fixing part is configured in a form away from the face. As such, the spring-shaped elastic body can be variously deformed using the three axes of the x, y, and z axes.

29 to 37 show in detail that the portion pressed by the fixing unit is in the form of a surface.

The figures filled with black in FIGS. 29 to 37 indicate that the part that the fixing part according to the present invention presses from the outer surface of the cover is in the form of a surface. Figures 29 to 31 are two fixing parts that are not connected to the cartilage are arranged symmetrically, and Figures 32 to 34 are connected to the middle part. 35 to 37 are cases in which the pressing part includes all points, lines, and surfaces. Even in this case, the material constituting the fixing part may be integrally formed by using a material having elasticity, such as metal.

38 to 55 show a case in which the pressing part of the fixing part or the additional fixing part is in the form of a plane, and the shape of the fixing part or the additional fixing part is three-dimensional. 38 to 55, the black side shows the side of the fixing part when viewed from the upper part of the user's face to the lower part. The gray color around the nasal cartilage indicates the additional fixation part, and the additional fixation part also has a three-dimensional shape. The fixing part defined in FIGS. 38 to 55 may be composed of one body or multiple bodies as a three-dimensional, elastic foam. A portion that the fixing portion presses the cover portion is also a surface, but the portion where the fixing portion is fixed to the support portion is also a surface.

56 to 58 show another three-dimensional shape of the fixing part. The fixing part is made of an elastic material such as foam or silicone, and the part to be pressed is in the form of a surface or a fine protrusion. The portion fixed to the support is in the form of a surface, and the configuration of FIGS. 56 to 58 presents various forms capable of dispersing the pressure applied to the user's face as examples.

59 to 69 show various examples of a form capable of movement including rotation, movement, and twisting while the fixing part and/or the additional fixing part are fixed to the support part. As a specific motion form of the non-limiting example of the fixing part, various mechanical motions such as sliding, rotation, and hinge folding may be applied.

In the embodiment of FIGS. 67 to 69, an object having a changeable shape, such as a foam, an air cap, silicone, or a spring, is fixed to the support part, and the fixing part is connected here again to apply a non-mechanical motion.

<Example>

70 to 72 are the first according to the present invention in the conventional mask (KF 94) in order to measure the official leak rate according to the nose fitting adjuster according to the present invention, in a state in which the fitting function of the conventional mask itself is not used. This is a photo of a fixing part that can adhere to the fixing part to the third fixing part in the form of a metal clip and tried on.

70 to 72, the third fixing part (Example 1), the second fixing part (Example 2), and the first fixing part (Example 3) according to the present invention according to the present invention when in close contact with the official leakage rate was measured. 70 to 72 , the portion covering the nose of the mask worn by the user corresponds to the cover portion, and the support portion in the form of a metal wire is not supported by the cover portion.

<Comparative example>

A disposable mask of the KF94 model, which is a conventional mask, was used as a comparative example. In the mask, a deformable wire is inserted around the nose of the mask for sealing around the nose. The official leak rate was measured with the mask. In Comparative Examples 1, 2, and 3, the leakage rate was measured using the conventional KF94 at the position where the leakage rate was measured in Examples 1, 2, and 3, respectively.

<Accredited leak rate measurement>

The leak rate was conducted according to the leak rate test method described in the Guide-0349-04 of the "Guideline for Standard Specifications of Health Masks (Citizen's Guide)" by the Korea Food and Drug Administration. The leak rate result of the present invention is the result of the test apparatus and method after being certified by the Food and Drug Administration.

In the table result related to the leak rate below, actions 1 to 5 are for 2 minutes without moving or speaking the head described in the "Guideline for Standard Specifications for Health Masks (Citizen's Guide)" Guide-0349-04. walk ㉯ Move your head from side to side 15 times for about 2 minutes as if examining the wall of a tunnel. ㉰ Move your head up and down 15 times for about 2 minutes, as if examining the roof and floor. ㉱ Say aloud sentences in Korean for 2 minutes. ㉲ is equivalent to walking for 2 minutes without moving the head or talking.

For each behavior, the test was conducted for about 2 minutes, and the average value of 5 times in total was used.

<Compared to the official leak rate results>

Tables 1, 3 and 5 are the official leak rates for the case of closely contacting the third fixing part (Example 1), the second fixing part (Example 2), and the first fixing part (Example 3) of the present invention, respectively. , Tables 2 and 4 are the official leak rate results of Comparative Example 1 and Comparative Example 2. In the case of Comparative Example 3, it was impossible to measure the leakage rate itself because adhesion was not possible. When the leak rate was forcibly measured, a value of 40% or more was measured, and a practically meaningful value could not be derived.

Table 6 shows the official leakage rate results for the case of using the nose fitting adjuster according to the embodiment of the present invention only the user's nasal cartilage without compressing the sites of Examples 1, 2, and 3 in the same experiment as Example 4 am.

Table 7 below shows the results of comparing the official leak rates of Examples 1 to 3 and Comparative Examples 1 and 2 according to the present invention.

Certified leak rate note Example 1 2.05% 3rd fixed part Example 2 0.36% 2nd fixed part Example 3 2.04% 1st fixed part Example 4 0.71% claim 2 fixed part Comparative Example 1 4.12% Less than 11% of KF94 standards are met Comparative Example 2 1.57% Less than 11% of KF94 standards are met Comparative Example 3 - Cannot be measured because it is not fixed

When measuring the official leak rate, it was found that all of Examples 1, 2, 3, 4 and Comparative Examples according to the present invention satisfy the criteria of KF94, but all cases of the present invention showed a lower leak rate compared to the comparative example .

<Comparison of chin exercise results>

Tables 8, 10, and 12 show, respectively, "Sentences in Korean for 2 minutes with jaw movement during the leak rate test method after wearing a mask including a nose fitting adjuster according to Examples 1 to 3 of the present invention." is the result of the test performed 5 times, respectively, and Tables 9 and 11 show the results of Comparative Examples 1 and 2, respectively. In the case of ㉱, a lot of leakage actually occurs, but since it is not clearly known within the regulations of the accredited test, an additional experiment was conducted.

As can be seen from Table 8, the mask including the nose fitting adjuster according to Example 1 showed a very good value as the leakage rate was 1.87% even for the above test. Referring to Table 9, when using the conventional KF94 at the same location, 8.02% was found to meet the standard of less than 11%, but compared to Example 1, it showed a leakage rate value of 4 times or more.

As can be seen from Table 10, the mask including the nose fitting adjuster according to Example 2 had a very good leak rate of 0.41%. Referring to Table 11, when the conventional KF94 was used at the same location, it was found that the standard was met at 1.41%, but the leakage rate was about 4 times higher than that of Example 2.

As can be seen from Table 12, the mask including the nose fitting adjuster according to Example 3 had an excellent leak rate of 2.31%. On the other hand, in the case of Comparative Example 3, it was impossible to measure the leakage rate itself because adhesion was not possible. When the leak rate was forcibly measured, a value of 40% or more was measured, and a practically meaningful value could not be derived.

Table 13 below shows the results of comparing the results of performing only the test having the highest leak rate among the official leak rates of Examples 1 to 3 and Comparative Examples 1 and 2 according to the present invention. There are many cases where users wear masks and work for a long time, and most of them have conversations accordingly. Referring to Table 13 below, Examples 1 to 3 of the present invention show almost similar leakage rate values compared to the case of Table 7 even in this case, which guarantees a constant sealing even if there is movement of the jaw muscles or the muscles of the face can confirm that In addition, it maintains a low leakage rate regardless of location and muscle use, so that excellent results can always be obtained even if the user is not proficient in wearing a mask.

Leak rate for jaw movement note Example 1 1.87% 3rd fixed part Example 2 0.41% 2nd fixed part Example 3 2.31% 1st fixed part Comparative Example 1 8.02% Less than 11% of KFT94 standards are met Comparative Example 2 1.41% Less than 11% of KFT94 standards are met Comparative Example 3 - Cannot be measured because it is not fixed

On the other hand, the conventional mask shows a large difference in leakage rate between when the user's jaw or facial muscles are stopped and when the user's jaw or facial muscles are not stopped, and there is a difference of 4 times or more depending on the location. There is a disadvantage of showing an inconsistent value depending on whether or not it is. On the other hand, in the same experiment, the nose fitting adjuster according to the embodiment of the present invention is used only for the user's nasal cartilage without compressing the regions of Examples 1, 2, and 3 As a result of measuring the leakage rate using KF94 of the case and comparative example, results similar to Tables 10 and 11 were shown. Even in this case, the result according to the present invention showed a leakage rate value of about 1/4.

<Displacement Experiment>

In order to confirm the displacement of the device for fixing to the face according to the presence or absence of the nose fitting adjuster according to the present invention, an elastic body fixed only on the left and right sides of the user's face was manufactured, and the change in the position of the elastic body in the vicinity of the nose was observed using a motion sensor.

73 is a photograph of a user wearing an elastic body to which a co-fitting adjuster according to Example 2 is added in order to conduct a displacement experiment. The displacement of the portion indicated by the red dot in FIG. 73 was observed. After the user wore the elastic body with or without the co-fitting adjuster according to Example 2, the displacement of the red dot was observed while speaking "Aoi". After obtaining the coordinates from the reference point and measuring their distance, it is shown in FIG. 74 according to time. In the case of an elastic body to which a nose fitting adjuster is added according to Example 2 of FIG. 73, which is a non-limiting embodiment, the support part is supported by the left and right sides of the user's face, and the fixing part is fixed by the support part. As can be seen here, the support part according to the present invention is not supported by the cover part.

In the conventional mask, even if the user bends the wire around the nose and adheres to it, the adhesion is lowered due to the contraction and relaxation of the facial muscles generated by the user speaking. Marked in orange in FIG. 74 shows the results of trying on the elastic body without adding the co-fitting adjuster according to Example 2 as a result similar to this. When the nose fitting adjuster according to the present invention is added, it can be indirectly confirmed that the degree of adhesion can be continuously maintained because the displacement (see blue in FIG. 74) of the corresponding part is small even when the user has a conversation.

In the present invention, since the position change is small, the friction with the skin according to the change is small. This has the advantage of preventing damage to the skin due to friction between the bridge of the nose and the mask when it is necessary to wear a mask for a long time as in COVID-19.

Claims (19)

a cover portion covering at least a portion of the user's nasal cartilage and a periphery thereof;
and 1) the user's nasolabial fold region, 2) the user's levator labii superioris muscle or levator labii superioris alaeque nasi muscle, and 3) the outer periphery of the user's alar crease on the outer surface of the cover part In the nose fitting adjuster including a fixing part for making the cover part close to the user's skin by pressing only the overlapping part,
The fixing part does not directly press the user's nose,
The fixing part is fixed by a separate support part provided on the outside of the cover part,
The part where the fixing part is fixed to the support part is located on the front part of the user's face,
The maximum range in which the cover can be disposed is from above the tip-defining points up and down to the lower end of the nasal bone, and to the left and right between the cheekbones of the user's face,
When the cover part is in close contact with the skin by the fixing part,
1) The relative position of the cover part pressed by the fixing part is fixed, and the cover part is in close contact with the skin by extending the cover part, or
2) The relative position of the cover part pressed by the fixing part is not fixed, and the cover part is deformed according to the shape of the nose, so that the cover part is in close contact with the skin,
3) The nose fitting adjuster in which the relative position of the cover part pressed by the fixing part is not fixed, and the cover part is also stretched so that the cover part is in close contact with the skin. According to claim 1,
wherein the support portion is not supported by the cover portion. According to claim 1,
In the nose fitting adjuster provided with an additional fixing part for pressing at least a portion of the user's nasal cartilage from the outer surface of the cover part,
The additional fixing part is a nose fitting adjuster that is fixed by the support part. 4. The method of claim 3,
The degree of compression of the fixing part is stronger than the degree of compression of the additional fixing part. According to claim 1,
A nose fitting regulator in the form of at least one of a point, a line, or a plane in which the fixing part presses. The method of claim 1,
A nose fitting adjuster in which at least one portion is pressed by the fixing unit. 4. The method of claim 3,
A nose fitting regulator configured in the form of a fine protrusion in which the additional fixing part presses. According to claim 1,
The shape of the fixing part is a nose fitting regulator whose shape is at least one of a point, a line, a plane, or a three-dimensional shape. According to claim 1,
The fixing part is a nose fitting regulator capable of pressing the additional pressing part from the outer surface of the cover part. 10. The method of claim 9,
The nose fitting adjuster is in the form of at least one of a point, a line, or a plane, the additional pressure part. According to claim 1,
The direction in which the fixing part presses from the outer surface of the cover part is a direction perpendicular to the user's skin, a wrinkle direction formed on the user's face, a direction perpendicular to a wrinkle formed on the user's face, or a direction along the outer periphery of the user's nose Or, an inward or outward direction around the outer periphery of the user's nose, a muscle direction around the user's nose, or a complex combination of the above directions. delete delete According to claim 1,
At least one portion where the fixing part is fixed to the support part is a nose fitting adjuster in the form of at least one of a point, a line, and a plane. 15. The method of claim 14,
The fixing part is a nose fitting adjuster in a form capable of movement including rotation, movement, and twisting while being fixed to the support part. According to claim 1,
A nose fitting adjuster connected by an elastic material capable of having a bent portion between a portion where the fixing portion presses the cover portion and a portion where the fixing portion is fixed by the support portion. According to claim 1,
The material of the cover part is an elastic material or a non-elastic material of a nose fitting regulator. 4. The method of claim 1 or 3,
The material of the support part is an elastic material or a non-elastic material nose fitting regulator. delete

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