JP3215563U - 3D mask - Google Patents

Abstract

Provided is a three-dimensional mask that can give good adhesion and feeling to a wider range of users for one mask size. A three-dimensional mask is composed of a single symmetrical sheet member 1 made of a polyurethane foam sheet, an upper joint curved on a central symmetry center line O, a linear lower joint, and those The sheet continuous portion is provided so as to form a three-dimensional shape that bulges outward when the mask left and right half portions 2, 3 are folded in half along the symmetrical centerline. The seat continuation part has sufficient elasticity and flexibility, and when the user wears the nose part and the chin part in contact with the inside of the upper and lower joint parts, respectively, the nasal part and the chin part which are different depending on the person. Since it can be deformed to absorb the difference in relative position, good adhesion and usability can be obtained. [Selection] Figure 1

Description

  The present invention relates to a three-dimensional mask for covering a human nostril.

  Conventionally, various types of masks formed in a three-dimensional shape that fits a human face have been proposed (see, for example, Patent Documents 1 and 2). The mask described in Patent Document 1 includes a left and right part including a mouth part, a tip detail formed so as to fit the outer shape of the nose above the mouth part, and an ear hook part formed behind the mouth part. It consists of symmetrical left and right sheets. The left and right sheets are ultrasonically coupled at one end thereof, and swell when expanded to the left and right, and are three-dimensionally formed so as to cover the nose and mouth portions through a space.

  The mask described in Patent Document 2 is composed of two sheet-shaped mask halves in which an opening is formed as an ear-hanging portion on one end side and a curved shape portion bulging outward is formed on the other end. The body is formed by joining curved parts, and when the mask half is spread, the curved parts bulge outward from the mask and cover part of the face including the mouth and nostrils. . The mask half body is formed of a material obtained by removing a polyurethane foam having elasticity so as to provide a mask that is not easily displaced during use, has good air permeability, and has a good feeling of use.

Utility Model Registration No.3054129 JP 2011-92559 A

  The above-described conventional mask has two sheet-like members that are symmetrical to each other along edges that are curved outward so that the portions that come into contact with the nose and mouth of the person swell outward when opened. It is joined. Therefore, in the center of the completed mask, a rib-shaped joint portion that is continuous over the entire length from the upper end to the lower end is formed.

  Such a joint has the advantage that it is easy to breathe and move the mouth because a gap is secured around the mouth and nostril of the mask wearer due to the rigidity of the rib shape itself. However, in general, the size and structure of the wearer's face varies widely, and also varies depending on gender and age. Therefore, when the size of the mask is one or small, the position of the ribs and the jaws varies depending on the wearer due to the rigidity of the rib shape, so that the adhesion of the mask is reduced or shifted easily, and as a result, There is a risk of impairing the wearer's feeling of use or causing discomfort. On the other hand, it is practically difficult to subdivide the size of the mask, and the price increases, which is not preferable.

Therefore, the present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a three-dimensional mask that can give a wearer better adhesion and usability.
A further object of the present invention is to provide a three-dimensional mask that can be similarly applied to a wider range of users for one mask size.

The present invention consists of one continuous sheet member that is symmetrical,
The sheet member has an upper joint portion, a lower joint portion, and a sheet continuous portion provided between the upper joint portion and the central symmetry center line,
The upper and lower joint portions and the sheet continuous portion are three-dimensional masks configured such that when the sheet member is folded in half along the symmetrical centerline, they form a convex shape with the sheet continuous portion first facing outward. It is characterized by being.

  In the three-dimensional mask of the present invention, the seat continuous portion provided between the upper joint portion and the lower joint portion on the center line of symmetry is at least more flexible than both joint portions. When the jaw part is brought into contact with the inside of the lower joint part inside the upper joint part, it can be deformed so as to absorb the difference in relative position between the nose part and the jaw part, which differs depending on the person. Therefore, there is an advantage that one mask size can be applied to a wider range of users, and similarly provides good adhesion and usability.

FIG. 1 is a plan view of a sheet material for forming a three-dimensional mask of the present invention. FIG. 2 is a plan view showing a state in which the three-dimensional mask of the present invention is folded in half along a symmetrical center line. FIG. 3 is a perspective view showing a state in which the three-dimensional mask of the present invention is opened left and right during use.

  Hereinafter, a three-dimensional mask of the present invention will be described in detail based on preferred embodiments with reference to the accompanying drawings.

  FIG. 1 shows a sheet member 1 for forming a three-dimensional mask according to a preferred embodiment of the present invention. The sheet member 1 has a mask left half 2 and a mask right half 3 which are symmetrical with respect to a central symmetry center line O, and is formed of a continuous sheet material.

  The mask left half part 2 and the mask right half part 3 are continuous left and right at the middle part on the symmetry center line O, and separated from the left and right by the upper notch part 4 and the lower notch part 5 at the upper and lower parts, respectively. Yes. The upper cut portion 4 is formed in a substantially V shape that expands upward and outward in a circular arc shape to the upper end of the sheet member 1. The lower cut portion 5 is formed by a cut line extending linearly to the lower end of the sheet member 1 on the symmetry center line O.

  The upper part of the mask left half part 2 and the mask right half part 3 have a substantially triangular shape that tapers upward with the left and right cut lines 4a and 4b of the upper cut part 4 as one side. The upper left part of the mask left half part and the mask right half part are inclined substantially linearly at a relatively steep angle downward to the left and right sides from the upper end of the substantially triangular shape to the vicinity of the intermediate position in the left and right direction, Thereafter, it extends linearly at a gentle downward inclination angle toward the left and right ends. The lower edge of the left half of the mask and the right half of the mask extend linearly from the lower end of the lower notch 5 toward the left and right ends with a gentle upward inclination angle.

  Ear hooks 6 and 7 are continuously provided by the sheet member 1 at the left and right ends of the mask left half 2 and the mask right half 3, respectively. The outer edges of the ear hooks 6 and 7 are formed in a substantially semicircular shape, and the upper and lower edges thereof are the upper and lower edges of the mask left half and mask right half, respectively. Smoothly continuous. At the center of the ear hooks 6 and 7, ear holes 8 and 9 are respectively opened. The ear holes 8 and 9 of the present embodiment are formed in a tapered oval shape from the left and right end sides toward the center side, but the shape is not limited to the oval shape, but a perfect circle, an ellipse, Various shapes are possible, such as oval, semi-circle or polygon, or combinations thereof.

  The sheet member 1 is formed of a polyurethane foam sheet having sufficient flexibility and elasticity as a three-dimensional mask. Such a polyurethane foam sheet has been widely known and used as a mask material as described in, for example, Patent Document 2 above. The polyurethane foam sheet as a mask material is preferably a film that has been removed so that appropriate air permeability can be obtained, and the characteristics such as the number of cells and elongation, the sheet thickness, etc. It is appropriately set so that preferable flexibility, elasticity, and stretchability can be obtained in handling and use.

  The three-dimensional mask of the present invention is obtained by folding the sheet member 1 of FIG. 1 in half along the symmetry center line O, and in this state, along the edges of the upper cut portion 4 and the lower cut portion 5, the mask left half portion 2 and the mask right half portion. It can be manufactured by joining with the part 3. As indicated by imaginary lines in FIG. 1, upper cut edges 10a and 10b having a predetermined width are formed on the upper left portion 2 and the right half portion 3 of the mask along cut lines 4a and 4b of the upper cut portion 4, respectively. Can be set. The boundary lines of the upper cut edges 10a and 10b are curved in an outwardly convex arc shape corresponding to the cut lines 4a and 4b. Similarly, lower cut edges 11a and 11b having a predetermined width can be set on both sides of the lower left mask 2 and the right mask 3 along the lower cut 5 respectively. The boundary between the lower cut edge portions 11 a and 11 b is provided in a straight line corresponding to the lower cut portion 5.

  FIG. 2 shows a three-dimensional mask 12 according to the present invention, which is formed by joining the upper cut edges 10a and 10b and the lower cut edges 11a and 11b, which overlap each other in the above-described folded state. . As shown in the figure, the upper cut edges 10a and 10b form an upper joint 13 curved in an outwardly convex arc shape, and the lower cut edges 11a and 11b form a linear lower joint 14. ing.

  Between the upper joint portion 13 and the lower joint portion 14 in the vertical direction, a sheet continuous portion 15 in which the mask left half portion 2 and the mask right half portion 3 are continuous on the left and right as a single sheet on the symmetry center line O. It is composed. As shown in FIG. 1, the upper cut edges 10a and 10b and the lower cut edges 11a and 11b are slightly adjacent to the upper and lower cut parts 4 and 5 in the middle part where the sheet material continues from side to side. It is preferable to set to include. Accordingly, the upper and lower joint portions 13 and 14 are formed so as not to form a gap between which the sheet material is not joined with the sheet continuous portion 15.

  The mask left half 2 and the mask right half 3 can be joined by various conventionally known methods. For example, when the sheet member 1 is formed of a polyester-based polyurethane foam, the sheet member 1 can be joined by welding such as heat welding, vibration welding, ultrasonic welding, and laser welding. As a joining method other than welding, bonding or sewing with various types of adhesives such as a reaction system or a solution system, or a hot melt adhesive is possible.

  In the present embodiment, as shown in FIG. 2, the lower joint portion 14 is somewhat retracted toward the ear hooking portion 6 (7) on the lower end side with respect to the sheet continuous portion 15. The upper joint portion 13 is bent from the beginning to the ear hooking portion 6 (7) side with respect to the sheet continuous portion 15. Therefore, in the two-folded state of FIG. 2, the edge portion on the side to which the three-dimensional mask 12 is joined (the right side in the figure) has a convex shape with the sheet continuous portion 15 facing outward.

  The three-dimensional mask 12 of the present invention is formed such that the central joint side is formed in an outwardly convex shape as shown in FIG. 2, so that when the mask left half 2 and the mask right half 3 are opened left and right during use, It can be formed in a three-dimensional shape bulging outward with the central sheet continuous portion 15 first. FIG. 3 shows the three-dimensional shape mask 12 thus opened to the left and right.

  As shown in the figure, since the three-dimensional mask 12 of the present invention forms a three-dimensional shape that bulges outward during use, the user places its nose portion inside the upper joint portion 13 and the jaw portion as the lower joint portion 14. When worn while being in contact with the inside, a gap can be secured around the nostril and the mouth. Therefore, the user can obtain good adhesion and usability.

  In addition, even when another user with a different relative position between the nose and the chin wears the three-dimensional mask 12 of the same size, the sheet continuous portion 15 is flexible in the sheet material which is polyurethane foam in this embodiment. And deforms due to elasticity to absorb the difference in the relative positions of the nose and jaw, so that the user's nose and jaw are brought into contact with the inside of the upper and lower joints 13 and 14 at substantially the same position. Can be made. As a result, the three-dimensional mask 12 of the present invention can be applied to a wider range of users for one mask size, and can give the same good adhesion and feeling of use.

  In the above embodiment, the ear hooks 6 and 7 are formed by a part of the sheet member 1, but in another embodiment, the ear hooks 6 and 7 can be provided separately from the sheet member 1. In this case, the ear hooking portion can be integrally provided by coupling a suitable ring-shaped string member such as a separate sheet member having a through-hole or a rubber string to the left and right ends of the sheet member 1.

  As mentioned above, although this invention was demonstrated in relation to the suitable embodiment, this invention is not limited to the said embodiment, In the technical scope, it can add and implement various changes or deformation | transformation. Needless to say. For example, the upper joint portion 13 can be formed in a linear shape and the lower joint portion 14 can be formed in an outwardly convex arc shape, or both the upper and lower joint portions 13 and 14 can be formed linearly or outwardly convex. It can be formed in an arc shape. In addition to the polyurethane foam, various known mask materials such as nonwoven fabric made of various elastic fibers such as polyurethane elastic fibers and polyester elastic fibers can be used as the sheet material.

DESCRIPTION OF SYMBOLS 1 Sheet | seat member 2 Mask left half part 3 and mask right half part 4 Upper cut part 5 Lower cut part 6,7 Ear hook part 8,9 Ear through-hole 12 Three-dimensional mask 13 Upper joint part 14 Lower joint part 15 Sheet continuous part

Claims (4)

It consists of one continuous sheet member that is symmetrical
The sheet member has an upper joint portion, a lower joint portion, and a sheet continuous portion provided between the upper joint portion and a central symmetry center line,
The upper and lower joint portions and the sheet continuous portion are configured such that when the sheet member is folded in two along the symmetrical centerline, they form a convex shape with the sheet continuous portion facing outward. A three-dimensional mask characterized by   The three-dimensional mask according to claim 1, wherein the sheet member is formed of a polyurethane foam sheet.   The sheet member is formed such that when the sheet member is folded in half along the symmetry center line, the upper joint portion has a curved shape protruding outward and the lower joint portion forms a straight line. Item 3. The three-dimensional mask according to item 1 or 2.   The three-dimensional mask according to any one of claims 1 to 3, further comprising ear hook portions respectively provided at both left and right end portions of the sheet member.

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