JP2013233400A - Displacement prevention method and means for sanitary mask body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a vertical displacement of a sanitary mask when used.SOLUTION: In a method, a sanitary mask includes a behind-the-ear part, a muzzle part, and a lower jaw cover part. A lower jaw is to form a wedge whose end is a lower jaw bottom end and having a concave part in its right and left surfaces and front surface, where a notch 10A, 10B, 10C vertically piercing through the mask body is provided, or a vitrification part/plastic shape retaining material or the like/friction resistance material or the like is provided, or a part of a lower pleat is unopenably/unclosably or the like fixed, or the behind-the-ear part is formed to be two-pronged or the like so that a tension from the behind-the-ear part can efficiently be divided/guided/pressurized/dispersed and divided, or a friction can be generated on a mask upper hem 7 and a mask side hem 8, or a region abutting on the lower jaw concave part and a mask lower hem 9, or the region abutting on the lower jaw concave part, or a mask lower hem 9 in order to more stably fix the mask on a face surface; or in a method the region abutting on the lower jaw concave part is pressurized and fixed on the lower jaw concave part; or in a method the lower jaw is tucked in the lower jaw cover part or fixed on the lower jaw with the friction. A sanitary mask prevents its vertical slippage when used with a method and a means.

Description

The present invention relates to a sanitary mask in which the face mounting position of the mask body does not deviate in the vertical direction during conversation or the like of a disposable sanitary mask or for a long time.

Prior art nonwoven pleated disposable sanitary masks (hereinafter referred to as pleated masks or masks) have a plurality of pleats (upper or lower) in the nose mouth covering part, and a pair of left and right ear hooks. Both ends are welded to the four corners of the mask body. When the upper and lower ends of the mask body are pulled in the vertical direction during use, the pleat portion projects and expands forward, and a space is formed at the mouth. When the mask is used, the tension from the ear hook is applied to the contact area between the upper side of the mask and the lower jaw lower side, and the lower jaw lower side controls the lower mask side and stays on the face. On the other hand, non-woven three-dimensional disposable sanitary masks (hereinafter referred to as three-dimensional masks or masks) are manufactured so that a space is formed at the mouth, and the ear hooks are welded to the left and right mask body side edges, Acts on the upper and rear sides, and is configured so that the lower part of the mask main body is brought into contact with the lower side of the lower jaw and fastened to the face.

Both of the above sanitary masks have been researched and developed, improving the adhesion at the beginning of the face wearing, having a high dustproof effect and the like, and fitting to the face at the beginning of wearing and having a good wearing feeling.

However, the mask body often shifts in the vertical direction during conversation or the like while using both masks or during long-time use.此 phenomenon tends to appear remarkably higher mask facial adhesion, proceeds endlessly deviation without unless returned to begin the initial wearing the mask body position shift.

When the pleated mask body is shifted downward, the rubber straps etc. of the ear hook are stretched and the tension is increased, the mask body is pulled strongly to the left and right, strongly pressing the ears, nose bridge and nasal head, causing pain and discomfort . In addition, the plastic shape-preserving material that prevents the gap between the nose bridge and the cheek surface is stretched to generate a gap at the site, thereby reducing the dustproof effect. In addition, the pleat portion is stretched to eliminate the space for the nose mouth covering portion, and the back surface comes into contact with the lips, causing discomfort and causing breathlessness. In addition, the lower jaw lower end abutting portion presses on the lower jaw and restricts the movement of the jaw at the time of conversation, and the smooth tongue becomes worse. When it starts to cling to the throat, it causes a strong discomfort, eventually leading to the exposure of the nostril, and even the significance of wearing a mask is halved.

On the other hand, at the time of a downward shift phenomenon of a three-dimensional mask having a non-woven ear hook part, because the elasticity of the ear hook part is low, when starting to shift, a circle arc with the distance between the ear and the mask body as a radius is drawn. The mask body gradually begins to open, and as the shift proceeds, the entire mask body gradually falls to the throat and the cheek gap widens. At the same time, the lower jaw contact part strongly presses the lower jaw to generate extremely strong discomfort, the movement of the lower jaw is restricted, the sliding tongue becomes worse, and the ear hook is strongly pulled forward, causing pain to the ear. Eventually, the lower part of the mask clings to the throat, leaving only the lower jaw contact area, and is greatly separated from the face, thus eliminating even the significance of wearing the mask.

As mentioned above, the downward shift phenomenon of the mask body is experienced by all users, and in order to avoid this inconvenience, pain, discomfort, etc., it is very troublesome that the mounting position must be corrected frequently. It was.

In order to avoid the above inconveniences, there are prior arts such as a long string that hangs around the head, etc., and strengthening the tension of the ear hanging part, but inconvenience at the time of attachment and detachment and inconvenience occur in conversation, Problems such as pain and pressure on the face occurred, and the effect of preventing the shift was not sufficient.

The present invention provides a sanitary mask that prevents the vertical displacement of the mask body that occurs when using a sanitary mask, and prevents pain, discomfort, dust-proofing effects, functional deterioration, and the like due to the phenomenon.

Means to solve the problem

Here, attention is paid to the vicinity of the lower jaw contact portion of the mask when the conventional mask is mounted. The lower jaw contact part touches the lower front surface of the lower jaw and the lower edge of the lower jaw in a thin band shape, and is pulled upward and rearward by the tension from the lower side of the ear hook, and the mask body is held at the face wearing position, and the lower side of the mask is slightly closer to the throat It is free.

Next, the change of the skin part on the lower front side of the lower jaw during conversation is analyzed. When vowels are uttered `` A '', `` I '', `` E '', the lips are spread to the corner of the mouth, the muscles on the front of the mandible are expanded to the surroundings, and the skin part on the lower side of the lower jaw protrudes slightly and the lower end of the lower jaw Lower in the edge direction. Further, when the vowel is uttered “U” or “O”, the lips are narrowed and the muscles on the front surface of the lower jaw suddenly contract to the center of the lower front surface of the mandible, and the skin area is instantaneously pulled upward and becomes flat. This phenomenon is linked to the movement of the lips and mandibular frontal muscles, and occurs even when used for a long time unconsciously with or without utterance.

The shift phenomenon of the mask main body is verified by paying attention to the thin band-like contact portion in consideration of the change in the lower jaw skin portion. The thin band-shaped contact part is pulled upward and rearward by the tension from the lower side of the ear hook part, and when it is pronounced to widen the mouth corner and lower the lower jaw, it is lowered together with the lower jaw by the protruding skin part, When pronounced to squeeze the lips, the lower jaw quickly rises and the protruding skin part instantly contracts upward and becomes flat, the tension weakens for a moment and the lower jaw slides up the thin band-like contact part, It remains at a position slightly above the original contact position of the narrow belt-shaped contact portion. Alternatively, due to the quick vertical movement of the lower jaw, the tension and frictional force of the thin belt-like contact portion are insufficient and the same as described above. It has been found that this repetition causes the downward shift phenomenon as if the mask body is brought close to the throat.

Further, when observing the shape of the lower cheek and the mandible from the starting point of tension, the lower jaw can be regarded as a wedge shape having concave portions on the left and right and the front surface with the lower edge of the lower jaw as the tip.

In consideration of the above, as a result of a wide variety of experiments, it is possible to apply the existing tension from the ear hook to the target site efficiently and obtain a fixing effect and be applicable to the prior art. The contact part is fixed with pressure friction near the lower edge of the lower jaw. Alternatively, it distributes, induces, distributes or divides the tension at the upper joint of the mask body or the upper joint of the lower part or the vicinity thereof, the lower edge of the lower jaw and the vicinity thereof, or on the tension action line. A method of converting pressure to pressure at a site or converting pressure to frictional force. Or the method of increasing the fixing force to the face of a nostril covering part. Alternatively, a method of pressing the lower jaw recess contact portion to the lower jaw recess and fixing it to the lower jaw. Alternatively, a method in which the lower jaw is sandwiched between the lower jaw concave contact portion and the lower side of the mask and fixed to the lower jaw. Alternatively, the present inventors have found a method and means for maintaining the mask tightly fixed to the face by using the above methods or by partially replacing or setting each method.

In the above, a thin film or the like of a friction resistance material or the like (rubber or the like) is provided on the skin contact surface of the lower jaw contact portion. Alternatively, the upper and lower sides of the left and right ear hooks are bifurcated. Alternatively, two ear hooks are provided on each of the left and right sides. Alternatively, a pleat portion is placed horizontally on the lower jaw covering portion. Or an induction pressurization part is provided in a mandibular recess contact part. Alternatively, a non-woven fabric such as a strip that can pressurize the lower jaw recess is provided inside the mask body. Alternatively, a part or all of the existing pleat is fixed so that it cannot be opened and closed. Alternatively, a multi-layered portion or the like is provided laterally at the lower jaw recess contact portion. Alternatively, the lower jaw cover is folded back in the lateral direction. Alternatively, the tension distribution unit, the induction unit, or the induction pressurization unit is provided on the upper or lower joint portion of the ear hook portion, in the vicinity thereof, or on the line of action of the tension. Alternatively, a distribution piece is interposed between the mask body and the ear hook. A distribution part, a guidance part, or a dispersion | distribution division part is provided in the lower jaw lower edge contact part and its vicinity. Alternatively, an expandable or stretchable nonwoven fabric or the like is used, or embossing that can include the lower end of the lower jaw and the vicinity thereof is performed. Alternatively, a non-woven fabric such as a bag is provided.

Effect of the invention

The present invention can solve various problems as follows. (1) Prevents the vertical displacement of the mask body, and (2) maintains the dustproof effect at the beginning of the mask mounting. (3) Eliminates the hassle of fixing the mounting position. (4) Adhesion and fixing force of the nose mouth covering part are increased. (5) It becomes difficult to create a gap between the nose mouth covering portion and the cheek surface. (6) The uncomfortable feeling that the lower jaw lower side contact part presses the lower jaw can be reduced. (7) The movement of the lower jaw is not restricted, conversation can be performed easily, and the smooth tongue is improved. Therefore, (8) the conversation becomes easy to hear. Since the pleat part never opens, (9) the space of the nose mouth covering part is maintained and easy breathing is maintained. (10) The discomfort that the skin surface touches the lips due to distortion or crushing of the covering portion can be eliminated. The shape-maintained pleat portion absorbs the vertical movement of the lower jaw, and (11) the discomfort that the upper side of the mask rubs up and down the cheek surface can be extremely reduced. Since there is almost no fluctuation in tension, (12) the discomfort that the nasal bridge contact portion presses the nasal bridge can be extremely reduced. Since the plastic shape-retaining material that closes the gap between the nose bridge and the cheek surface does not stretch, (13) the sealing property of the upper side of the mask can be maintained. Since the lower jaw cover is always firmly fixed to the lower jaw, (14) complete adhesion of the lower side of the mask can be secured and maintained. In order to distribute, divide, and guide the tension of the ear hook to the target site efficiently (15) The mask body can be tightly fixed to the face with gentle tension. (16) The feeling of pressure on the back of the ear due to the ear hook is reduced. Because of that, (17) There is little uncomfortable feeling even when using at bedtime, (18) The mask does not shift from the wearing position even when turning over at bedtime. Therefore, (19) it can be used day and night. (20) In a mask provided with a long string or the like hung around the head and neck, it is not necessary. (21) The mask can be easily attached and detached. (22) Since a long string or the like is unnecessary, the manufacturing cost can be reduced. In the present invention, since the above-described effect can be obtained only by subjecting the conventional technology to slight processing, (23) the burden of development, equipment, and manufacturing costs can be suppressed, and (24) sales can be provided at low cost. It is possible to wipe out various inconveniences, pains, discomforts and the like caused by the mask body displacement phenomenon.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention relates to both a pleat type and a three-dimensional type sanitary mask provided with ear hooks at the four corners or left and right side ends of a mask body comprising a nostril and a lower jaw covering part. The tension acting radially on the upper side and the left and right sides of the mask is distributed or guided to the upper side of the mask and the left and right sides of the mask and concentrated on the three sides, and the frictional force is increased by improving the pressurizing action of the tension. To increase the adhesion and fixing force of the nostril cover to the face. Alternatively, the tension acting in a straight line from the lower joint portion of the ear hook portion of the mask main body to the belt-like contact portion of the lower jaw is regarded as an applied pressure, and the lower jaw covering portion is frictionally fixed to the lower jaw. Alternatively, the tension is distributed, guided, distributed, or divided at two portions near the mask lower jaw recess contact portion and the lower side of the mask to fix the two portions to the lower jaw. Alternatively, the side is fixed to the lower side of the lower edge of the lower jaw by a combined action with the tension distributed to the lower side of the mask. Alternatively, a distribution part, a guiding part or a guiding pressure part is provided across the lower edge of the lower jaw, and the lower jaw is sandwiched and fixed at the two parts. Alternatively, an induction pressure unit is provided at the lower jaw recess contact portion, and the pressure contact is fixed to the lower jaw recess and its vicinity.

As a method and means, a distribution part (a cut or a hole penetrating through the mask body or a hole, a melt-solidified part, or a linear shape, etc.) on the upper or lower joint part of the ear hook or in the vicinity thereof or on the line of action of the tension A plastic shape-retaining material or the like), or a guiding portion (a cut or a hole penetrating through the mask body, a melt-solidified portion, or a linear shape or the like). Alternatively, a distribution piece (such as a non-woven fabric or a shape-retaining material or a plastic shape-retaining material) is interposed between the ear hook and the mask body. Alternatively, the upper side or the lower side or the upper and lower sides of the ear hook part are forked, or two ear hook parts are provided on each of the left and right sides. Or the dispersion | distribution division | segmentation part (cut or hole which penetrates the mask body front and back) which can accommodate the lower jaw lower end and its vicinity is provided. Or embossing etc. is given. Alternatively, a non-woven fabric such as a bag is provided. Alternatively, a non-woven fabric having expandability or stretchability is used. Or induction pressurizing part (melt-solidified part or linear shaped plastic shape-retaining material, etc., or a part or all of the existing pleat is fixed in a non-openable / closable state, or a belt-like shape, etc. Side by side). Alternatively, a non-woven fabric band or the like having expandability or stretchability is laid sideways inside the mask body. Or, pleats (襞) are installed on the lower jaw cover. Alternatively, the lower jaw cover is folded back in the lateral direction. Alternatively, a thin film or the like such as a friction resistance material (rubber or the like) is adhered or applied to the skin contact surface.

The mask body is composed of a nose mouth covering part with increased fixing force as described above and a lower jaw covering part fixed to the lower jaw. As a result, the mask body is fixed to the face, and it is displaced vertically. Methods and means for providing no sanitary mask.

Claim 1 is a basic concept of a method and means for preventing the vertical displacement of the mask main body, in which the tension from the ear hook portion is efficiently applied to the target portion to obtain a fixing effect. It is also possible to implement in forms other than thru 8. Examples will be described below in the order of the claims, but the implementation is not limited. In addition, it is possible to obtain a slip prevention effect by simply providing a simple process or providing simple parts to the prior art. The following methods can be provided together, or partial replacement or partial installation of each method can be arbitrarily performed.

(A) Front (b) Side view of the lower jaw as defined by the present invention The (a) pleat type mask of claim 2 (b) A schematic diagram of the front of the three-dimensional mask The (a) pleated mask of claim 2 (b) a perspective view when the three-dimensional mask is used (A) 11A pleated mask of 11A (b) 12A pleated mask (b) 12B pleated mask (b) 20C pleated mask (b) 12C pleated mask B) Schematic diagram of the front of the 15B 3D mask (A) 11A pleated mask of 11A (b) 12A pleated mask (b) 12B pleated mask (b) 20C pleated mask (b) 12C pleated mask B) Perspective view of the 15B 3D mask The (a) pleated mask of claim 4 (b) A schematic diagram of the front of the three-dimensional mask The (a) pleated mask of claim 4 (b) a perspective view when the three-dimensional mask is used The (a) pleated mask of claim 5 (b) A schematic diagram of the front of the three-dimensional mask 6. (a) Pleated mask of claim 5 (b) Perspective view when using a three-dimensional mask (A) 15A pleated mask of (B) 15B pleated mask (B) (1) Three-dimensional mask of 15A (2) Schematic diagram of the front of the three-dimensional mask of 15B 7. (a) 15A pleated mask of (B) 15B pleated mask (B) (1) Three-dimensional mask of 15A (2) A perspective view of the three-dimensional mask of 15B in use (A) The pleated mask of 18 of (a1) 18 (a2) The pleated mask of 17A (b1) The three-dimensional mask of 17A (b2) The schematic diagram of the front of the three-dimensional mask of 10A The pleated mask of (a1) 18 of (a) of claim 7 (b2) The pleated mask of 17A (b1) The three-dimensional mask of 17A (b2) The perspective mask figure when using the three-dimensional mask of 10A The (a) pleat type mask of claim 8 (b) A schematic diagram of the front of the three-dimensional mask The (a) pleated mask of claim 8 (b) A perspective view of the three-dimensional mask when used.

In the first aspect, the sanitary mask includes three parts: a nose mouth covering portion that covers the cheeks and nostrils, a lower jaw covering portion that covers the lower jaw (mandible bone portion), and an ear hook portion that wraps around the ear and attaches the mask body to the face. The lower jaw is viewed as the shape of the lower cheek and mandible from the starting point of tension, and is regarded as a wedge shape having the lower end edge of the lower jaw as a tip and concave portions on the left and right and the front, and the lower jaw lower end contact portion is frictionally fixed to the lower jaw. Alternatively, the mandibular cover is pressed and fixed to the mandibular recess and its vicinity. Alternatively, the lower side of the mask is pressed and fixed to the back side of the lower edge of the lower jaw. Or, the main element is to fix the lower jaw covering part to the lower jaw by sandwiching the lower jaw with the lower jaw contact part and the lower side of the mask, and to increase the fixing force to the face of the nostril covering part as the sub element, and the mask body on the face It is a method and means for tightly fixing and is a fundamental concept of the present invention. The subelement can be omitted.

In the present invention, a friction resistance material such as a thin film (rubber or the like) 19 is attached or applied to the skin surface of the lower jaw 6 contact portion of the mask main body, and a frictional force is generated by a pressing force depending on the tension. A method in which the lower jaw 1 is frictionally adhered and fixed (claim 8). Alternatively, the upper side or the lower side or the upper and lower sides of the ear-hooking portion are bifurcated 17A or 17B, or two left and right sides are provided side by side, with one upper end near the upper end of the mask 7 and the other end near the upper side of the left and right mask side 8 The lower end is joined to the vicinity of the contact portion of the lower jaw recess 3, and the other end is joined to the vicinity of the lower end 9 of the mask. Or the distribution part 10A of the said cut | interruption which can distribute the tension | tensile_strength of a nonwoven fabric wide ear hook part to said each site | part is provided in the left-right and up-down direction (Claim 7). Alternatively, the guide portion 11 is provided along the mask upper side 7 and the left and right mask side sides 8 from or near the upper portion of the ear hook portion. An induction pressure part 20A or 12C such as a plastic shape-retaining material is provided in the lower jaw recess 3 contact part from the lower joint part or the vicinity thereof, and the induction part 11 is provided in the mask lower side 9 and the vicinity thereof. Alternatively, a fixed portion 20C that makes the pleat 21 at the nearest position partly or entirely overlapped or cannot be opened or closed is provided in the existing lower jaw recess. Alternatively, a linear layer or the like is horizontally provided at the lower jaw recess contact portion. Alternatively, the lower jaw recess 3 and a non-woven fabric 15B having expandability or stretchability such as a belt shape, which can pressurize the lower jaw recess 3 and the vicinity thereof, are laterally arranged inside the lower jaw cover (Claim 3). Alternatively, the mask mandibular cover is folded back 13 inwardly or outwardly and fixed near the side end of the 13 and the lower end of the ear hooking part is joined to the fixed part and the vicinity thereof (Claim 4). Alternatively, the pleats 14 are laid sideways on the lower jaw covering part and fixed near the side end of the 14 and the lower end of the ear hooking part is joined to the fixing part and the vicinity thereof (Claim 5). Alternatively, the tension distributing portion 10A or the guiding portion 10B on the upper or lower joining portion or the vicinity thereof, on or near the tension acting line, or on the lower jaw lower edge 4 contact portion and the vicinity thereof. Alternatively, 11 is provided, or 12A or 12B such as a plastic shape-retaining material or 20A of an induction pressure unit is provided. Alternatively, the distribution piece 18 is interposed between the upper or lower ear hook and the mask body (claim 2 or 3 or 7). Alternatively, the lower jaw edge 4 and the vicinity thereof are subjected to 15A such as an embossing process that can include the lower jaw lower edge 6 and the vicinity thereof. Alternatively, an expandable or stretchable non-woven fabric 15B is used (Claim 6), or a dispersion division part 10C is provided (Claim 2). The above is a method of distributing or guiding the tension acting radially or in a straight line from the ear hooking portion to the mask upper side 7 and the left and right mask side sides 8 or the lower jaw side 3 contact portion and the mask lower side 9 vicinity. Alternatively, the distributed or induced tension strongly pulls the mask upper side 7 and the left and right mask side sides 8 and presses the nose mouth covering portion against the face to increase the adhesion and fixing force. Alternatively, a method of fixing the lower jaw 1 by sandwiching the lower jaw 1 between the contact portion of the lower jaw recess 3 and the lower side 9 of the mask 9 or the plastic shape-retaining material 12A or 12B with the tension distributed or guided or divided. Alternatively, a method of fixing the lower jaw 1 by giving stretchability or the like to the lower jaw lower edge 4 contact portion and the vicinity thereof. Alternatively, a method in which the vicinity of the mask lower side 9 is pressure-fixed to the back side 5 of the lower edge of the lower jaw. Alternatively, the contact portion of the lower jaw recess 3 and the vicinity thereof pressurize the lower jaw recess 3 and the vicinity thereof, increase the contact area and stay in the lower jaw recess 3, and fix the lower jaw covering portion to the lower jaw 1. The action of the two distributed tensions returning to the original linear shape is that the mask upper side 7 and the left and right mask side edges 8, the lower jaw recess 3 contact portion and the mask lower side 9, or the lower jaw recess 3 contact portion, or the mask lower side 9 A method of reinforcing the fixing force of the nose mouth covering portion or the lower jaw covering portion by increasing the pressure applied to the nose.

The bifurcation (17A, 17B) of the above-mentioned ear-hanging part or two of these parts are provided side by side, or the jointing part of the ear-hanging part or the distribution part in the vicinity thereof (the cut 10A passing through the mask body), or the distribution piece 18 A method and means for distributing the tension on the upper side of the ear hook part to the mask upper side 7 and the left and right mask side edges 8, or the tension on the lower side of the ear hook part to the contact portion of the lower jaw recess 3 and the vicinity thereof and the mask lower side 9 and the vicinity thereof. .

The guide part (the cut 10B or the guide part 11 penetrating the mask main body on the front and back) is provided on or near the tension action line, and the tension acting radially or in a single line is applied to both ends, both sides or one end of the cut 10B. Alternatively, the line of action is forcibly changed on one side, or because it is harder than the surroundings, it is easily affected by the tension. A method and means for increasing the pressure on the side 8 and increasing the adhesion and fixing force of the face. Alternatively, a method and means for inducing tension between the contact portion of the lower jaw recess 3 or the contact portion of the lower jaw recess 3 and the lower side 9 of the mask.

Fixing to make part of or all of the pleats closest to the induction pressurizing part (hano-shaped piece 12C, melt-solidified part or plastic shape-retaining material such as a band or line shape, etc. The part 20C) is located at the lower left and right joint part of the ear hook part or in the vicinity thereof, or in the lower jaw recess 3 or in the vicinity thereof from the action range of the tension. In the prior art, the tension attracted from the lower left and right joints is largely detoured along the lower jaw lower edge 4. Since the tension has the property of going straight through the shortest distance, each induction pressure unit is provided near the shortest distance and is harder than the surroundings, and is easily affected by the tension. Pressurizing and contacting the vicinity of the left and right ends of the recess 3, and using this as a clue, the tension shifts the line of action to each induction pressurizing unit, and connects the joints below the left and right ear hooks. As a result, each induction pressurizing part pressurizes and catches on the lower jaw concave part 3 and the vicinity thereof to obtain a frictional force and fix it to the concave part 3. As described above, the method and means for fixing the lower jaw cover to the lower jaw recess 3 by applying a tension line of action to the lower jaw recess 3 contact portion with the hard portion provided in the lower jaw cover.

The dispersion dividing portion 10C, the folded portion (pocket portion) 13, the pleat portion 14, the embossing process 15A, the expandable or stretchable nonwoven fabric 15B, etc. By accommodating 6 and its vicinity, tension | tensile_strength is divided | segmented into the lower jaw recessed part 3 contact part and its vicinity, the mask lower side 9, and its vicinity, and the lower jaw 1 is included and pinched. A method in which the divided tension pressurizes the lower jaw recess 3 and the vicinity thereof at the contact portion of the lower jaw recess 3 and the vicinity thereof to obtain a friction force and pressurize and fix. A method in which the mask lower side 9 is strongly pulled and fixed to the back side 5 of the lower edge of the lower jaw or closely fixed. Accordingly, a method and means for pressing and fixing the lower jaw covering portion to the lower jaw 1 under pressure.

The friction resistance material such as the thin film (rubber or the like) 19 converts the pressure applied to the face of the tension from the ear hook joint portion into a frictional force to prevent slippage. A method and means for friction fixing by providing on the skin surface of the nostril cover. Alternatively, a method and means for fixing the lower jaw cover to the lower jaw 1 by providing it on the skin surface of the lower jaw 1 contact portion.

12A and 12B such as the above-mentioned plastic shape-retaining material are a method and means for fixing the lower jaw covering portion to the lower jaw 1 by sandwiching the lower jaw 1 between the lower jaw lower end edge 4 and the lower jaw recess 3 contact portion and the mask lower side 9.

In addition, the cut line 10 penetrating the mask main body is provided on the tension acting line from the ear hook portion or in the vicinity thereof, or at the lower jaw lower edge 4 and the vicinity thereof. When it is provided across the tension, the line of tension action is divided by the cut line 10, and the tension line that has lost its destination changes the line of action along the side of the cut line 10 on the tension action side. An action line is drawn in a direction in which tension can be transmitted from one end or both ends. When provided parallel to the tension, the tension is divided into the upper and lower sides of the cut 10. A method of freely distributing or guiding a tension acting line to an arbitrary site depending on the length, number, setting position and angle of the cut line 10. Further, the incision 10 straddling the lower jaw lower edge 4 is a method in which the lower jaw lower edge 4 expands the incision 10 to divide the tension into the upper and lower ends of the incision 10. When a plurality of the cuts 10 are provided adjacent to each other in the lower jaw lower edge 4 (the cut 10C), the lower jaw lower end 6 and the vicinity thereof are included in the cut 10 site, and the movement of the skin portion of the lower jaw 1 and the lower jaw lower end 6 is considered. A method to dissipate and extinguish tension by expanding and contracting sensitively. Alternatively, the tension is divided and transferred in parallel to the upper and lower ends, and the lower jaw lower end 6 and its vicinity are sandwiched and fixed to the lower jaw 1. Or the method of relieving the applied pressure of the lower jaw 6 lower part 6 contact part and its vicinity using this expansion-contraction action. Alternatively, a method of fixing the lower jaw covering portion to the lower jaw 1 by the action. Alternatively, it is a method and means for fixing the lower jaw 1 by giving stretchability to and in the vicinity of the lower jaw lower edge 4 contact portion.

The mask body is composed of the lower jaw cover part and nose mouth cover part that are fixed to the lower jaw according to the above methods, so the mask body is fixed to the face, and during conversation and long use Is a method and means for providing a sanitary mask that does not shift vertically.

As described above, the present invention is characterized mainly in that several kinds of means are changed in the setting position and angle, shape, size, length, hardness, thickness, etc. to make the main actions and effects different. The fixation to the lower jaw 1 is completed by the above methods. Coexistence or partial replacement of the above methods is also effective.

According to claim 2 (FIG. 2), a notch 10A penetrating front and back of the mask main body capable of breaking the tension action line near the upper ear hook joint is about 3 mm to 20 mm in length and 2 mm from the upper side 7 of the mask. A lower position of about 7 mm is set as an upper end, and a side position of about 3 mm to 20 mm from the mask side 8 is set as a lower end, and is provided symmetrically in a diagonal line. One or more vertical cuts 10A in the vertical direction in the vicinity of the lower joint of the ear hook and on the tension acting line, with the vicinity of the lower jaw recess 3 as the upper end, and the upper position of about 2 mm to 20 mm from the lower edge of the mask as the lower end. Provide symmetrically. Alternatively, one or more slits 10B having a length of about 5 mm to 50 mm are provided symmetrically in the lateral direction or the longitudinal direction on the tension action line. Alternatively, a plurality of cuts 10C having a length of about 5 mm to 80 mm straddling the lower lower edge 4 of the lower jaw and provided with a plurality of the cuts at intervals of about 2 mm to 50 mm are provided in parallel in the left-right direction.

When the mask is used (FIG. 3), the distributor 10A provided in the vicinity of the upper joint of the ear hooking part of the mask main body or the guide part 10B provided on the tension acting line causes the tension to be applied to the mask upper side 7 and the mask left and right side 8 Distributing or guiding to pressurize the face to generate a frictional force and enhance the adhesion and fixing force of the nostril cover. On the other hand, the distribution portion 10A or the guide portion 10B provided near the lower joint portion of the ear hooking portion or at the lower jaw lower edge 4 or at the tension action line, the tension is applied to the lower jaw recess 3 contact portion and the mask lower side 9. Distribute or guide. The dispersion dividing portion 10C includes and sandwiches the lower end 6 of the lower jaw and the vicinity thereof, and divides the tension into the upper end and the lower end of the dispersion dividing portion 10C and shifts in parallel. Due to the tension transferred to the upper end of the dispersion dividing portion 10C, a pressing force and a frictional force are generated at and in the vicinity of the lower jaw recess 3 contact portion, and are caught in the lower jaw recess 3 and the vicinity thereof and fixed by pressure friction. The lower side 9 of the mask and its vicinity are pressed and fixed to the lower side 5 of the lower edge of the lower jaw by the tension transferred to the lower side, and the lower jaw 1 is sandwiched or fixed to the lower jaw 1 by the expansion and contraction action.

The guide portion 10B provided in the lateral direction along the lower jaw lower edge 4 and the vicinity thereof guides the tension to the upper and lower sides of the cut 10B and reinforces the action of the distribution portion 10A or the dispersion division portion 10C. The action of returning to the linear shape of the tension divided in two by the dispersion dividing portion 10C reinforces the action of sandwiching the lower jaw 1.

The mask main body has a lower jaw covering portion and a nose mouth covering portion that are closely fixed to the lower jaw 1, and is thus configured to be fixed to the face, thereby preventing a vertical shift phenomenon.

Note that the embodiment is not limited to the above, and it is optional to change the cut to a hole or the like. The fixing of the lower jaw 1 can be completed depending on the length and number of the distribution unit 10A and the guide unit 10B, the installation direction, and the position, and the individual units can be provided individually or side by side. In addition, if an inflatable or elastic non-woven fabric or the like is attached in the vicinity of the cut or the like, the skin is not exposed when the cut is opened, which is good for beauty.

With the above and the above effects, a wide variety of effects described above can be obtained, and it is possible to eliminate and eliminate discomfort and inconvenience caused by the shift phenomenon.

In the third aspect (FIG. 4), the guide part 11 is connected to the left and right ear hooking parts on the left and right upper side joints of the mask main body or the vicinity thereof with a length of about 20 mm to 60 mm between the mask upper side 7 and the mask left and right side sides 8. Provide on three sides. Alternatively, the induction pressurizing portion 20A is provided at the contact portion of the lower jaw recess 3 with a length of about 20 mm to 100 mm, and the guide portion 11 is provided on the lower mask side 9 (see FIG. 4). 1). Alternatively, a T-shaped piece 12A (a figure-shaped piece 12A (see FIG. 5) is disposed by straddling the lower jaw edge 4 of the T-shaped piece 12A, the U-shaped piece, or the U-shaped piece 12B, such as the shape-retaining material, with the pair of left and right openings facing inward. 4) 2) The upper part of the U-shaped piece or the U-shaped piece 12B (a 3 in FIG. 4) is masked on the lower jaw or in the vicinity of the contact portion of the lower jaw recess 3 and in the vicinity thereof. Place near the lower side 9 and fix to the lower jaw cover. Alternatively, a fixed portion 20C having a length of about 10 mm to 90 mm in a layered state or incapable of opening and closing is provided in a dotted line or the like on the pleat 21 located closest to the lower jaw recess already provided in the mask main body in the center direction from both ends (see FIG. 4). 4). Or the lower jaw recessed part 3 and the nonwoven fabric etc. 15B etc. which have the expandability or expansion / contraction property which can pressurize the lower jaw recessed part 3 and its vicinity are laid down inside a lower jaw cover part (b of FIG. 4).

When the mask is used (FIG. 5), the upper left guide portion 11 induces the tension on the upper side of the ear hook portion to the mask upper side 7 and the mask left and right side 8 to enhance the adhesion and fixing force of the nose mouth covering portion. The left and right lower guide part 11 or the induction pressurizing part 20A induces the tension on the lower side of the ear hook part to sandwich the lower jaw 1 between the two parts, and the induction pressurization part 20A provided at the contact part of the lower jaw concave part 3 A pressure is applied to the concave portion 3 and its vicinity to fix it closely, and a guide portion 11 provided in the vicinity of the lower side 9 of the mask is pressure-fixed to the back side 5 of the lower edge of the lower jaw ((1) in FIG. 5). Alternatively, the pleated portion hardened from the periphery by the fixing portion 20C that makes the pleats in a normal state or cannot be opened and closed pressurizes the lower jaw recess 3 and the vicinity thereof and stays in the recess 3 to fix the lower jaw covering portion to the lower jaw 1 ( B) in FIG. The upper and lower portions of the shape piece 12A or 12B are held with fingers, and the lower jaw is straddled across the lower lower edge 4 of the lower jaw. The upper part of the T-shaped piece 12A, the U-shaped piece and the U-shaped piece 12B pressurizes the vicinity of the lower jaw recess 3 and presses the vicinity thereof to fix the lower jaw recess 3 and the vicinity thereof, and the lower part is fixed. The lower side 9 of the mask and the vicinity thereof are fixed to the back side 5 of the lower edge of the lower jaw, and thus the lower jaw covering portion is fixed to the lower jaw 1 (a 2 or a 3 in FIG. 5). On the other hand, the non-woven fabric 15B having expandability or stretchability, such as a belt-like shape laid horizontally inside the mask body, pressurizes the lower jaw recess 3 and the vicinity thereof, and is fixed and fixed to the lower jaw recess 3 and the vicinity thereof. The part is fixed to the lower jaw 1 (b in FIG. 5).

Even if the inductive pressurizing portion 20A is provided only at the contact portion of the lower jaw recess 3, the lower jaw covering portion can be fixed. When a non-woven fabric having a similar shape is overlaid and fixed on the induction part 11 or the induction pressure part 20A, the action and effect increase. The setting position, range, and shape of the fixing portion 20C of the pleat can be arbitrarily set. Further, when the fixing portion 20C is applied to the other pleats side or the like, the pressing force and the contact area of the cheek surface that abuts are increased, and the fixing force of the nostril covering portion is increased. A belt-like elastic body or the like that can pressurize the lower jaw recess 3 is provided horizontally at the lower jaw contact portion. Alternatively, one piece of the T-shaped piece is provided near the center of the fixed position. Alternatively, the mask lower side 9 side of the U-shaped piece 12B is changed to a single line to make a flat elliptical piece. Or even if it changes to the I-shaped piece which deleted the upper part of the T-shaped piece, the fixing effect is acquired. Further, even if the C-shaped piece 12C (a5 in FIG. 4 and a5 in FIG. 5) is removed by removing the lower part of the above-mentioned V-shaped piece, the effect of fixing the pressure friction of the lower jaw recess 3 is obtained. It is done. It is also possible to use a method in which the guide part 11 or the induction pressure part 20A is attached after the mask is mounted using an adhesive tape or an adhesive after the mask body is mounted. The length and width of the induction part 11 and the induction pressure part 20A, the installation position, and the like are arbitrary.

In claim 4 (a or b in FIG. 6), the mask body lower jaw covering portion is folded back inward 13 (hereinafter referred to as pocket portion) with the upper position of about 7 mm to 50 mm from the lower edge 9 of the mask as a fold. Then, the mask body is welded and fixed in a dotted line shape or a linear shape on both sides of the mask main body or in the vicinity thereof, and the lower end of the ear hooking portion is joined to the welding fixing portion of the pocket portion 13 or in the vicinity thereof.

When the mask is used (a or b in FIG. 7), the lower jaw lower end 6 and the vicinity thereof are accommodated and mounted in the pocket portion 13. Since the mask lower side 9 is at the uppermost position on the back side of the pocket portion 13, it is located on the back side 5 of the lower edge of the lower jaw. The lower end 6 of the lower jaw contained in the pocket portion 13 and the vicinity thereof divide the linear tension from the ear hook portion into the contact portion of the lower jaw recess 3 and the vicinity thereof and the mask lower side 9, and the mask lower side 9 is the lower jaw. The lower jaw edge back side 5 is pressed and fixed, and the lower jaw recess 3 abutting portion pressurizes the lower jaw recess 3 and the vicinity thereof to press and fix it. As a result, the lower jaw cover is fixed to the lower jaw 1.

In addition, if the welding part of the both sides of the pocket part 13 is stuck with an adhesive or an adhesive tape etc., a user can create to a favorite depth. Further, when the pocket portion 13 is provided to be folded outwardly, the vicinity of both ends is formed into a multi-layered shape and hardens, thereby producing the action and effect of the induction pressurizing portion 20A. In (b) of FIG. 6, when the upper portion of the pocket portion 13 and the vicinity thereof are reduced, the pressure fixing force of the lower jaw recess 3 is increased.

In claim 5 (FIG. 8), the lower jaw covering portion (FIG. 8a) of the pleated mask or the lower jaw 3 contact portion (b) of FIG. An upward or downward pleat 14 having a flat fan shape or the like (hereinafter referred to as a pleat portion 14) is provided. The side ends of the pleats 14 in the lateral direction are welded and fixed in the form of dotted lines or lines, and the lower end of the ear hooking part is joined to the welded fixing part of the pleats 14 or the vicinity thereof.

When the mask is used (FIG. 9), when the pleated mask is used, the pleat part 14 is expanded and the lower jaw lower end 6 and its lower mask 6 are used (FIG. 9). When the pleated mask is used, the pleat part 14 is expanded and the lower jaw lower end 6 is exposed. Accommodates and installs (A in FIG. 9). The lower jaw lower end 6 and the vicinity thereof are included and sandwiched between the lower jaw recess 3 contact portion and the vicinity thereof and the mask lower side 9, and the tension on the lower side of the ear hook is divided into the two portions, and the lower jaw recess 3 contact portion is the lower jaw. The lower side 9 of the mask is pressure-fixed to the back side 5 of the lower edge of the lower jaw, and the pleat portion 14 is fixed to the lower jaw 1. Since the end of the pleat portion 14 and the vicinity of the lower jaw recess 3 overlap and become hard, it also functions as an induction pressurizing portion of the lower jaw recess 3. On the other hand, the three-dimensional mask (B in FIG. 9) is fixed to the lower jaw recess 3 by pressing the lower jaw recess 3 and the vicinity thereof when the pleat portion 14 is opened when the mask is mounted. As a result, the lower jaw cover is fixed to the lower jaw 1.

In claim 6 (FIG. 10), the lower jaw edge 4 abutting portion is provided with a stamping process 15A such as expandable or concave shape that can include the lower jaw lower end 6 and the vicinity thereof (FIG. 10). B) or b) Alternatively, using the non-woven fabric 15B having expandability or stretchability in the vicinity of the lower jaw lower end 6 in the mask lower jaw covering portion and the vicinity thereof, the lower side or lower jaw of the nose mouth covering portion is used (b) in FIG. The lower side of the cover part and the upper side of the nonwoven fabric 15B, etc. are welded and fixed 16 in a dotted line or line shape and integrated with the nose mouth cover part, and the lower sides of the pair of left and right ear hooks are joined near the lower corners, respectively.

When the mask is used (FIG. 11), the stamping process etc. 15A (A1 or B1 in FIG. 11) or the non-woven fabric 15B (A2 or B2 in FIG. 11) which is expandable or stretchable is in contact with the lower jaw Depending on the lower edge 4 and its vicinity, it is expanded to include the lower jaw lower end 6 and its vicinity. The tension on the lower side of the ear hook is divided into the lower jaw lower end 6 and the vicinity thereof, and is divided into the lower jaw recess 3 contact portion and the vicinity thereof and the mask lower side 9, and the lower jaw 1 is sandwiched between the lower jaw 6 and the lower jaw 1 by the applied pressure and friction. Fix it. As a result, the lower jaw cover is fixed to the lower jaw 1.

It is also effective to excise the 15A part such as the above-mentioned embossing process, and to fix the lower jaw 6 and its surroundings in a bag-like non-woven fabric that can encompass the lower jaw 6 and its vicinity, and weld and fix it to the periphery and the line. It is. Alternatively, when the portion of 15A such as the embossing process is excised, the action and effect of the dispersion dividing portion 10C are obtained and fixed to the lower jaw 1. The nonwoven fabric 15B can be changed to a mesh shape or the like, and any shape can be used as long as the above functions and effects can be obtained.

In claim 7 (FIG. 12), distribution of V-shaped or U-shaped non-woven fabric, elastic material, plastic shape-retaining material or the like between the mask main body and the upper or lower joining portion of the ear hooking portion. The product piece 18 is interposed so as to face the pair of left and right inward (a in FIG. 12). Alternatively, the upper or lower side of the left and right ear hooks is bifurcated (17A or 17B) (A2 or B1 in FIG. 12). Alternatively, two ear hooks are provided on each of the left and right sides. The upper end or the lower end of the ear hooking portion is joined or connected to the V-shaped acute angle portion or the U-shaped arcuate portion of the distribution piece 18. One end near the upper edge 7 of the mask, the other end near the upper edge of the left and right mask sides 8, One end of the distribution piece 18 on the side or the lower side of the bifurcated portion 17B or the lower side is near the lower end of the lower jaw 3 and the other end is near the lower end of the mask lower side 9 respectively. Join. Alternatively, in the wide nonwoven fabric ear-hanging portion, the vertical distribution portion 10A capable of distributing the tension is provided symmetrically in the vertical and horizontal directions at each of the above portions in the vicinity of the joint portion with the mask body (FIG. 12). B) 2), bifurcated (17A or 17B) or the action and effect of the dispensing piece 18 are obtained.

When the mask is used (a, b, i, b, or b in FIG. 13), the tension from the upper side or the lower side of the ear hooking portion is the distribution piece 18 or the bifurcated portion (17A or 17B) or the two. It is distributed to the upper and lower ends of the book or distribution unit 10A. On the upper side, it is distributed to the mask upper side 7 and the left and right mask side sides 8, and the face part where the three sides come into contact is pressed and adhered to enhance the adhesion and fixing force of the nose mouth covering part. The lower tension is distributed to the lower jaw recess 3 contact portion and the mask lower side 9, and the lower jaw recess 3 contact portion pressurizes the lower jaw recess 3 and the vicinity thereof to generate a frictional force and pressurize and fix the mask. The lower side 9 is pulled with strong tension and fixed to the back side 5 of the lower lower edge of the lower jaw by pressing and fixing, including the lower jaw and fixed. As a result, the lower jaw cover is fixed to the lower jaw 1.

In claim 8 (a or b in FIG. 14), a friction resistance material such as a thin film (rubber or the like) 19 or a thin film is applied to the lower jaw edge 4 of the lower jaw when the mask body is mounted and the skin contact surface in the vicinity thereof. Adhere or apply a linear frictional resistance material.

When using the mask (a or b in FIG. 15), the tension from the lower side of the ear hook acts on the lower jaw lower edge 4 contact portion and its vicinity, and pressurizes the lower jaw lower end 4 and its vicinity, A frictional force is generated on the skin surface with the friction resistance material or the like (rubber or the like) 19 or the like to stop slipping, and the lower jaw lower end 4 contact portion and its vicinity are frictionally fixed to the lower jaw lower end 4 and the vicinity thereof. As a result, the lower jaw cover is fixed to the lower jaw 1.

It should be noted that the friction fixing force is effective and optional even at the contact position of the skin surface other than the above as the installation position of the friction resistance material etc. (rubber etc.) 19 etc. The material, size, number, and shape of the friction resistance material etc. (rubber etc.) 19 and the like can be arbitrarily set, and if they are provided at a plurality of sites, the effect of friction fixation is improved. In addition, when it is provided adjacent to the lower jaw 1 contact portion and the vicinity thereof or the skin contact portion of the face of each of the above claims, the effect of fixing the mask becomes extremely wise. The friction resistance material or the like (rubber or the like) 19 or the like is a method of generating a frictional force by applying pressure and friction-fixing it on the skin surface. In addition, there is no sticking discomfort during use and no sticking peeling discomfort during removal. When the shape of the skin contact surface of the friction resistance material or the like (rubber or the like) 19 is made to be dotted or linear, the frictional force increases and the skin contact feeling can be reduced.

INDUSTRIAL APPLICABILITY The present invention can be used as a method and means for preventing a phenomenon in which a mask main body shifts in the vertical direction during use at low cost.

Explanation of number

1 Mandible (whole mandibular region)
2 Front of the lower jaw (all below the lower lip from the front)
3 Lower jaw recess 4 Lower jaw lower edge 5 Lower jaw lower edge back side 6 Lower jaw lower edge 7 Mask upper side 8 Mask side 9 Mask lower side 10 Cut through (10A) Distributing part (10B) Guide part (10C) Distributing part 11 Guide part ( Melt-solidified part or linear plastic shape retaining material)
12 Plastic shape-preserving materials, etc. (12A) T-shaped piece (12B) U-shaped piece or Ku-shaped piece (12C) C-shaped piece 13 Folding of lower jaw covering part (pocket part)
14 Mandibular pleats (pleats)
15 (15A) Embossing, etc. (15B) Non-woven fabric having expandability or stretchability, etc. 16 Dotted or linear weld fixing part 17 Ear hook part (17A) Upper side of bifurcated (17B) Lower side of bifurcated 18 Pieces (nonwoven fabric or shape retaining material)
19 Friction resistance materials such as thin films (rubber, etc.)
20 Inductive pressurization part (20A) Melt-solidification part, or a plastic shape-retaining material such as a strip or a line
(20C) A fixed portion 21 that makes a part or all of the layers overlap or cannot be opened and closed Existing lower pleats provided on the mask body

Claims (8)

The sanitary mask consists of three parts: a nose mouth covering part that covers the cheeks and nostrils, a lower jaw covering part that covers the lower jaw, and an ear hanging part that hangs around the ear. It is considered as a wedge shape having A thin film or the like such as a friction resistance material (rubber or the like) is adhered or applied to the skin contact surface of the mask body. A V-shaped distribution piece (nonwoven fabric or shape retaining material) is interposed between the mask main body and the ear hanging part right and left upper side or left and right lower side, and the end of the ear hanging part is attached to the acute angle portion of the distribution piece. Each of them is joined, or the upper or lower side of the ear hook is bifurcated, or two ear hooks are provided on both the left and right sides, and one end of the distribution piece or the two forks or the two upper left and right sides is the upper edge of the mask. Near the other end near the upper part of the left and right sides of the mask, or one end of the distribution piece or the bifurcated or two of the left and right lower sides near the side of the lower jaw contact part and the other end on the lower side of the mask Join near the edge. Alternatively, a distribution part (a cut or the like penetrating through the mask body, a melt-solidified part, or a linear shaped plastic shape-retaining material, etc.) is provided in the vicinity of the four corners of the mask body or the ear-hanging part joints at the left and right sides. Alternatively, on or near the tension acting line, the distribution part or the induction part (the cuts or the like, the melt-solidification part, or the linear shape plastic shape retaining material, etc.) or the induction pressure part (melt-solidification part, Alternatively, a plastic shape-retaining material such as a belt-like shape, or a pleat at the nearest position is fixed to the existing lower jaw recess partly or entirely so that it can be overlaid or cannot be opened or closed. Or a non-woven fabric band having expandability or stretchability, etc., which can be pressed against the lower jaw recess and the vicinity thereof on the inner side of the mask body. Alternatively, the lower jaw covering portion is folded back in the lateral direction to form a pocket, or the lower jaw covering portion is provided with a lateral pleat and affixed with an adhesive tape or the like near each side end. Or the dispersion | distribution division | segmentation part (the said cut | notch etc.) which can include a lower jaw lower end and its vicinity is provided in the lower jaw lower end edge contact part and its vicinity. Alternatively, an expandable or stretchable nonwoven fabric is used. Or embossing etc. is given. Alternatively, a non-woven fabric such as a bag is provided. The above is a method of frictionally fixing the lower jaw covering part to the lower jaw with a friction resistance material or the like. A method of distributing, guiding, or dividing the tension acting radially or in a straight line from the upper or lower joint of the left and right ear hooks to the target portion of the mask body. Or a method of distributed division. Alternatively, a method of increasing the adhesion and fixing force of the cover of the nostril to the face with a distributed, divided, or induced tension. Alternatively, a method in which the lower jaw is sandwiched between the lower jaw concave contact portion and the vicinity thereof and the lower side of the mask and fixed to the lower jaw. Alternatively, a method of pressing the lower jaw concave contact portion to the lower jaw concave portion and the vicinity thereof and fixing it to the lower jaw. A method of giving elasticity to the lower edge of the lower jaw and its vicinity and fixing it to the lower jaw. A method of fixing the lower jaw covering part to the lower jaw by each of the above methods, a combination of the above methods, partial replacement of the above methods, or partial installation. A sanitary mask body misalignment prevention method and means characterized in that the mask body is fixed to the face because the mask body is integrally composed of a nose mouth covering portion and a lower jaw covering portion fixed to the lower jaw. Cuts or the like penetrating through the mask body in the vicinity of the joint portion on the upper or lower side of the ear-hooking portion at the time of wearing the mask, on or near the tension acting line from the joint portion, or the lower jaw lower edge contact portion Are provided symmetrically at one or more locations, and the cuts or the like divide the tension action line, and distribute, guide, or disperse or divide the tension to the target site, and adherence to the face of the nostril covering portion and fixing force How to enhance. Or a method of fixing the lower jaw covering part to the lower jaw. 2. The sanitary mask body misalignment prevention method and means according to claim 1, wherein the mask body is fixed to the face. A melt-solidified portion, a shape-retaining material, a plastic shape-retaining material, or the like, such as a band shape or a linear shape, is provided along the upper side of the mask and the left and right sides of the mask from the upper joint portion of the left and right ear-hanging portions. Or it is provided along two directions of the lower jaw recessed part contact part direction and the mask lower side direction, or the lower jaw recessed part contact part, or the mask lower side direction or the lower side from the lower joint part of the ear hook or the vicinity thereof. Alternatively, a part or all of the pleat at the nearest position is fixed to the existing lower jaw recess so as to be in a layered state or cannot be opened or closed, or a layered portion such as a belt is provided at the contact portion of the lower jaw recess. Alternatively, a non-woven fabric having expandability or stretchability that can pressurize the lower jaw recess and its vicinity inside the mask body is provided sideways. Alternatively, an I-shaped piece, a T-shaped piece, a U-shaped piece or a U-shaped piece, such as a plastic shape-retaining material, can be used as a U-shaped piece or a V-shaped piece in the initial state of wearing the mask. With the opening facing inward, an I-shaped piece, a T-shaped piece, or an arcuate portion of a U-shaped piece, or an acute angle portion of a U-shaped piece straddles the lower lower edge of the lower jaw, The upper part of the T-shaped piece is the lower jaw contact part and the vicinity thereof, the lower part is near the lower side of the mask, or the upper left and right sides of the opening part of the U-shaped or U-shaped piece is the lower jaw contact part. Alternatively, the left and right lower sides of the opening part of the cross-shaped piece are arranged in the vicinity of the lower side of the mask and fixed or adhered with an adhesive or the like. Alternatively, a U-shaped piece or a U-shaped piece or a flat oval piece that connects the lower side of the mask or a U-shaped piece that is removed from the lower side of the U-shaped piece. Fix or stick to the contact area. A method in which the upper side tension is guided to the upper side of the mask and the side of the mask as described above, and the adhesion and fixing force to the face of the nostril covering portion are increased by the applied pressure and the frictional force. Alternatively, a method of inducing tension on the lower side and pressurizing and fixing the lower jaw recess contact portion to the lower jaw recess and its vicinity. Alternatively, a method of fixing the lower jaw covering portion to the lower jaw by sandwiching the lower jaw. 3. The sanitary mask body misalignment prevention method and means according to claim 1, wherein the mask body is fixed to the face as described above. The mask body lower jaw covering part is folded inward or outward in the lateral direction, and is fixed by welding or sticking with an adhesive tape or the like in the vicinity of both left and right ends in a dotted line shape or a linear shape. The left and right lower ends of the ear hooks are joined to the folded fixed part and the vicinity thereof. A method of fixing the lower jaw covering portion to the lower jaw according to the above. 4. The sanitary mask body misalignment prevention method and means according to claim 1, wherein the mask body is fixed to the face. One or more laterally upward or downward pleats (襞) are provided in the mask body mandibular covering part, and are welded and fixed in the vicinity of the left and right ends thereof in the form of a dotted line or the like. The lower left and right ends of the ear hook are joined to the vicinity. Alternatively, a flat fan-shaped pleat is provided at the lower jaw concavity contact portion and its vicinity. A method of fixing the lower jaw covering portion to the lower jaw according to the above. 4. The sanitary mask body misalignment prevention method and means according to claim 1, wherein the mask body is fixed to the face. The mask body lower jaw lower edge contact portion and its vicinity when the mask is mounted are subjected to a stamping process such as expandability or a concave shape that can include the lower jaw lower end and the vicinity thereof. Alternatively, a non-woven fabric such as a bag is provided. Alternatively, a non-woven fabric having expandability or stretchability that can include the lower end of the lower jaw is used for the lower lower end of the jaw and the vicinity thereof or the lower jaw covering portion, and the lower side of the lower jaw covering portion or the nose mouth covering portion and the upper side of the nonwoven fabric etc. are dotted lines. The left and right lower ends of the ear hooking part are joined to the vicinity of both lower corners of the nonwoven fabric or the like. A method of fixing the lower jaw covering portion to the lower jaw according to the above. 5. The sanitary mask body misalignment prevention method and means according to claim 1, wherein the mask body is fixed to the face. The upper or lower side of the left and right ear hooks are bifurcated, or two ear hooks are provided on both the left and right sides, one end of each ear hook left and right upper side is near the left and right ends of the mask upper side, and the other end is on the left and right mask sides Join near the top of the side. Alternatively, one end of each ear hook portion on the left and right sides is joined to the vicinity of the lower jaw side contact portion side end, and the other end is joined to the mask lower side left and right side ends. Alternatively, a V-shaped or U-shaped nonwoven fabric or the like, or an elastic or shape-retaining pair of upper, lower, left, and right pair of distributing pieces facing inward, the V-shaped acute angle portion or a U-shaped circle Join or connect the ends of the ear hooks to the isolated parts, respectively, one end of the upper distribution piece opening near the upper left and right side edges of the mask, the other end near the upper side of the left and right mask sides, and the lower side One end of the opening of the distribution piece is joined to the vicinity of the lower jaw recess contact part side end, and the other end is joined to the mask lower side end. Alternatively, in a wide ear hook made of non-woven fabric, cuts or the like penetrating the front and back of the lengths reaching the respective side end portions are provided at or near the upper, lower, left and right joints with the mask body. A method for improving the adhesion and fixing force of the nose mouth covering part according to the above. Or a method of fixing the lower jaw covering part to the lower jaw. 7. The sanitary mask body misalignment prevention method and means according to claim 1, wherein the mask body is fixed to the face. A thin or linear frictional resistance material (rubber etc.) is stuck or applied to the skin surface such as the lower jaw or cheek contact area when the mask is worn. The method for improving the adhesion and frictional fixing force of the nose mouth covering part as described above. Or a method of frictionally fixing the lower jaw covering part to the lower jaw. 8. The sanitary mask body misalignment prevention method and means according to claim 1, wherein the mask body is fixed to the face.

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