Full-face shaped mask body

Abstract

To provide a full-face shaped mask body capable of adjusting an eyeglass position attached to the mask body in a state of putting the mask body on the face of a wearer.SOLUTION: A full-face shaped mask body 1 includes: an operation rod 12 penetrated into a hollow part 3 for the face from the upper side of a face piece 4 via a through hole 4a formed on the upper part of the face piece 4; a clip 13 disposed in a lower end part positioned in the hollow part 3 for the face of the operation rod 12 so as to fix eyeglasses 10; a spherical magnet 14 disposed in an upper end part positioned outside the face piece 4 of the operation rod 12; a holding body 15 formed from a nonmagnetic material, air-tightly fixed to the periphery of the through hole 4a, and having a sphere holding part 15a for rotatably holding the spherical magnet 14 in the inside; a hollow magnetic material 16 rotatably disposed in the sphere holding part so as to cover the sphere holding part 15a of the holding body 15; and an operation part 17 for rotating the hollow magnetic material 16 around the sphere holding part 15a.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a full-face mask that can be fixed in front of the face while covering the wearer's eyes, nose, and mouth, such as a dust mask, gas mask, or air respirator, and in particular to a full-face mask that has the function of holding eyeglasses within the mask and adjusting their position. [Background technology]

[0002] In the event of the generation or leakage of harmful gases in factories, power plants, etc., workers carry air cylinders on their backs and wear full-face masks as air respirators while working. Such a full-face type facepiece has an eyepiece made of a transparent body that ensures the wearer's field of vision, a facepiece that is fixed to the entire outer periphery of the eyepiece and is formed to abut against the wearer's face, and a fixing means for fixing the eyepiece and facepiece in front of the face with the face hollow portion formed by the eyepiece and facepiece covering the eyes, nose, and mouth.

[0003] Such facepieces are of a sealed type in which the facepiece is tightly fitted to the wearer's face, and therefore cannot be used while wearing eyeglasses. In the past, a full-face mask was known in which a clip attached to the facepiece was placed in the hollow portion for the face so that the eyeglasses normally worn could be attached directly to the mask and used, and the eyeglasses were held in place by this clip (see Non-Patent Document 1). [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] “Mask Option Glasses Clip Type A”, [online], Midori Safety Co., Ltd., [Searched on September 20, 2023], Internet<URL:https: / / ec.midori-anzen.com / shop / g / g4025766763 / > Summary of the Invention [Problem to be solved by the invention]

[0005] However, conventional full-face masks that can hold eyeglasses within the mask do not allow the position of the eyeglasses to be adjusted after the mask is placed on the wearer's face, and if the wearer wants to adjust the position of the eyeglasses, they must remove the mask, adjust it, and then put it back on the face, which takes time before the wearer can begin the adjustment.

[0006] The present invention has been made in consideration of the above circumstances, and its main objective is to provide a full-face type facepiece that allows the position of eyeglasses attached inside the facepiece to be adjusted while the facepiece is attached to the wearer's face. [Means for solving the problem]

[0007] In order to achieve the above object, the full-face mask according to the present invention comprises: An eyepiece made of a transparent body that ensures the wearer's field of vision; a face piece fixed to the outer periphery of the eyepiece and configured to contact the wearer's face; a fixing means for fixing the eyepiece and the facepiece in front of a face in a state in which a face hollow portion formed by the eyepiece and the facepiece covers the eyes, nose, and mouth; A full-face type facepiece having an operating rod that passes through the face hollow portion from above the face piece via a through hole formed in an upper portion of the face piece; a clip provided at a lower end of the operating rod located in the face hollow portion for fixing spectacles; A spherical magnet is provided at an upper end of the operating rod located outside the face piece; a holder that is airtightly fixed to the periphery of the through hole at the upper part of the facepiece and is made of a non-magnetic material and has a sphere holder that rotatably holds the spherical magnet inside; a hollow magnetic body rotatably provided on the sphere holding portion of the holder so as to cover the sphere holding portion; an operation unit that rotates the hollow magnetic body around the sphere holding unit; The present invention is characterized by being provided with the following:

[0008] Therefore, if the wearer wishes to adjust the position of the glasses after the facepiece is attached to the clip and the glasses are then attached to the face of the wearer, the operating part is grasped with the fingers and the hollow magnetic body is rotated around the sphere holding part of the holder, causing the spherical magnet held by the sphere holding part to rotate in conjunction with the movement of the hollow magnetic body, thereby making it possible to adjust the position of the glasses attached to the clip.

[0009] In the above configuration, a hollow magnetic body is provided to cover a spherical magnet provided at the upper end of the operating rod via a sphere holding portion, but the relationship between the magnet and the magnetic body may be reversed, and the spherical magnet may be replaced with a spherical magnetic body, and the hollow magnetic body may be replaced with a hollow magnet.

[0010] In addition, in the above configuration, the front-back, left-right position and tilt of the eyeglasses can be adjusted by operating the operating part, but if further adjustment of the up-down position is required, an expandable bellows part can be further provided between the spherical holding part of the holder and the part fixed around the through hole of the facepiece. Effect of the Invention

[0011] As described above, according to the full-face mask of the present invention, a clip for fixing glasses is provided at the lower end of the operating rod that passes through the through hole at the top of the facepiece, a spherical magnet is provided at the upper end, a holder with a spherical holder that rotatably holds the spherical magnet is attached to the top of the facepiece, a hollow magnetic body is rotatably attached so as to cover the spherical holder, and an operating part is provided on this hollow magnetic body, so that even when the mask is attached to the face of the wearer, the position of the glasses attached to the clip can be adjusted by operating the operating part. This eliminates the need to remove the mask to adjust the position of the glasses, making it possible to shorten the time it takes to start working. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a diagram showing the full-face type facepiece of the present invention being worn on a wearer's face. [Diagram 2] 13 is a diagram showing an eyeglass position adjustment mechanism provided on a full-face type facepiece. FIG. [Diagram 3] 1A and 1B are diagrams illustrating an example of adjustment of glasses position by the glasses position adjustment mechanism according to the present invention, in which FIG. 1A shows a state before the glasses position is adjusted, and FIG. 1B shows a state after the glasses position is adjusted. [Figure 4] 11A and 11B are diagrams for explaining an example of adjusting the eyeglass position using another eyeglass position adjustment mechanism according to the present invention, in which (a) is a diagram showing the state before the eyeglass position is adjusted, and (b) is a diagram showing the state after the eyeglass position is adjusted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a full-face type facepiece according to the present invention will be described with reference to the drawings.

[0014] In FIG. 1, the full-face type facepiece 1 comprises an eyepiece 2 made of a transparent, hard synthetic resin such as polycarbonate resin to ensure the wearer's field of vision, a facepiece 4 made of an elastic member and fixed to the outer periphery of the eyepiece, forming a hollow section 3 for the face between the eyepiece 2 and the wearer's face and abutting the wearer's face, and a fastening means 6 consisting of a tightening cord or the like that is looped around the head to fasten the eyepiece 2 and the facepiece 4 in front of the face with the hollow section 3 for the face covering the eyes, nose and mouth of the wearer 5.

[0015] A nose cup 7 is provided on the inside of the facepiece 4, which is formed so as to be able to come into contact with the face so as to cover the nose and mouth. A facepiece member 8 made of plastic is provided on the front surface of the facepiece 4, which is located below the eyepiece 2, and the nose cup 7 is attached to the facepiece member 8 from the inside of the facepiece 4.

[0016] An air supply valve (not shown) is attached to the facepiece member 8, and a cylinder is connected to this air supply valve via an air conduit, so that clean air stored in the cylinder can be introduced into the facepiece 4 via the air supply valve. The nose cup 7 is provided with a check valve 9 that opens upon inhalation, so that clean air inside the facepiece 4 can be introduced into the nose cup 7.

[0017] In such a full-face type facepiece 1, the upper part of the facepiece 4 is provided with a glasses position adjustment mechanism 11 that holds glasses 10 in the face hollow portion 3 and adjusts the position of the held glasses 10.

[0018] As shown in FIG. 2, the eyeglass position adjustment mechanism 11 includes: An operating rod 12 that passes through a through hole 4a formed in the upper part of the facepiece 4 from above the facepiece 4 into a hollow part for face 3 (between the eyepiece and the face of the wearer); a clip 13 that is provided at a lower end of the operating rod 12 located in the hollow part for face 3 and that fixes the eyeglasses; A spherical magnet 14 is provided at the upper end of the operating rod 12 located outside the face piece 4; a holder 15 made of a non-magnetic material, which is fixed airtightly around the through hole 4a at the top of the face piece 4 and has a sphere holder 15a on the inside for holding the spherical magnet 14 rotatably and non-detachably; a hollow magnetic body 16 rotatably attached to the sphere holding portion 15a of the holder 15 so as to cover the sphere holding portion 15a; an operating unit 17 for rotating the hollow magnetic body 16 around the sphere holding unit 15a; It is equipped with:

[0019] The operating rod 12 is made of metal or hard resin, and a sufficient clearance is provided between the operating rod 12 and the through hole 4a, allowing the operating rod 12 to rotate and tilt inside the through hole 4a.

[0020] Clip 13 may be made of synthetic resin, but is preferably made of metal for durability. Clip 13 is capable of clamping bridge portion 10a of eyeglasses 10, and by adjusting the position of the bridge portion clamped by clip 13, the fixed position of eyeglasses can be adjusted to some extent.

[0021] The spherical magnet 14 is preferably a strong spherical magnet such as a neodymium magnet, and is formed to be larger than the diameter of the through hole 4a.

[0022] The holder 15 is made of a non-magnetic material such as plastic (synthetic resin) that can be maintained in an upright position, and is formed in a bottomed tubular shape that is fixed so as to protrude upward from the upper end of the facepiece. The holder 15 is airtightly connected by adhesive, welding, or the like to the periphery of the through hole 4a of the facepiece 4 with the open end facing downward, so that air leaking from inside the facepiece 4 through the through hole 4a enters the holder but does not leak out from the holder to the outside.

[0023] The upper end, i.e., the bottom, of the holder 15 is provided with a spherical space inside which the spherical magnet is rotatably held. The inner diameter of the spherical holder 15a is larger than the inner diameter of the holder 15 near the open end, and the spherical magnet can be rotated and held with a predetermined clearance. Therefore, the clip 13 can move around the spherical magnet 14 in the front-back, left-right, or any other direction within the range regulated by the inner wall of the through hole 4a, and can also rotate around the axis of the operating rod 12.

[0024] The hollow magnetic body 16 is formed from a magnetic material such as iron and is rotatably attached to the outer surface of the sphere holding portion 15a. It covers the sphere holding portion 15a of the holder 15 from above and is formed in a shape that covers at least a hemispherical surface of the sphere holding portion 15a so that the sphere does not easily fall off from the sphere holding portion 15a.

[0025] The operation portion 17 is formed so as to protrude upward from the center of the top of the hollow magnetic body 16, that is, from the center of the side opposite to the open end of the hollow magnetic body 16.

[0026] Therefore, when the operating portion 17 is pinched with the fingers and the hollow magnetic body 16 is rotated in any direction around the sphere holding portion 15a of the holder 15, the spherical magnet 14 held by the sphere holding portion 15a moves in the same direction in response to this movement, and the clip 13 is displaced in the same direction via the operating rod.

[0027] In the above configuration, when the bridge portion 10a of the eyeglasses 10 is clamped by the clip 13 and the full-face type face piece 1 is attached to the face of the wearer 5 in this state, the eyeglasses are placed in the hollow portion for the face 3. However, if the position of the eyeglasses deviates from the position intended by the wearer as shown in FIG. 3(a) (in this example, they are tilted slightly diagonally), the wearer can pinch the operating portion 17 with his / her fingers and rotate the hollow magnetic body 16 around the spherical magnet 14 as shown in FIG. 3(b), thereby adjusting the front-to-back and left-to-right position of the eyeglasses, the inclination of the eyeglasses, and the rotational position of the eyeglasses around the operating rod 12 (in this example, the eyeglasses can be adjusted horizontally).

[0028] Therefore, after the full-face type facepiece 1 is placed on the face, the glasses placed in the hollow portion 3 cannot be inserted into the hollow portion 3, so in the past it was necessary to remove the facepiece from the face, adjust the position of the glasses 10, and then place the facepiece back on the face. However, with this configuration, even when the facepiece is placed on the face, it is possible to adjust the position of the glasses by operating the operating unit 17 while it is still in that state (while maintaining airtightness inside the facepiece), so there is no need to remove the facepiece, making it possible to shorten the time it takes to get started on the work.

[0029] In the above configuration, the sphere held by sphere holding portion 15a of holder 15 is made of a magnet, and the hollow magnetic body is rotatably attached around it via the holder. However, the sphere held by sphere holding portion 15a of holder 15 may be made of a magnetic material such as iron, and the hollow magnetic body may be made of a hollow magnet.

[0030] Furthermore, in the above configuration, it is possible to adjust the front / back / left / right position, inclination, and rotational position of the glasses, but it is not possible to adjust the vertical position. Therefore, as shown in FIG. 4, in order to allow the holder 15 itself to expand and contract, a bellows-shaped bellows portion 15b may be provided on the peripheral wall between the sphere holding portion 15a of the holder 15 and the connection portion with the facepiece 4.

[0031] In this configuration, when the bellows is not retracted, it is possible to displace the position of the glasses upward as shown in FIG. 4(a), and when the bellows is retracted, it is possible to displace the position of the glasses downward as shown in FIG. 4(b). Therefore, in this configuration, in addition to adjusting the front-back, left-right, tilt, and rotational positions of the glasses, the position in the up-down direction can also be adjusted. [Explanation of symbols]

[0032] 1 Full-face mask 2 Eyepieces 3. Facial Hollow Section 4 Face Piece 5. Wearer 6 Fixing means 10 glasses 11 Glasses position adjustment mechanism 12 Operating rod 13 clips 14 Spherical Magnet 15 Holding body 15a Sphere holding part 15b Bellows section 16 Hollow magnetic material 17 Control section

Claims

1. An eyepiece made of a transparent body that ensures the wearer's field of vision; a face piece fixed to the outer periphery of the eyepiece and configured to contact the wearer's face; a fixing means for fixing the eyepiece and the facepiece in front of a face in a state in which a face hollow portion formed by the eyepiece and the facepiece covers the eyes, nose, and mouth; A full-face type facepiece having an operating rod that passes through the face hollow portion from above the face piece via a through hole formed in an upper portion of the face piece; a clip provided at a lower end of the operating rod located in the face hollow portion for fixing spectacles; A spherical magnet is provided at an upper end of the operating rod located outside the face piece; a holder that is airtightly fixed to the periphery of the through hole at the upper part of the facepiece and is made of a non-magnetic material and has a sphere holder that rotatably holds the spherical magnet inside; a hollow magnetic body rotatably provided on the sphere holding portion of the holder so as to cover the sphere holding portion; an operation unit that rotates the hollow magnetic body around the sphere holding unit; A full-face mask comprising:

2. 2. The full-face mask according to claim 1, wherein the spherical magnets are replaced with spherical magnetic bodies, and the hollow magnetic bodies are replaced with hollow magnets.

3. 3. A full-face mask as claimed in claim 1 or 2, characterized in that the retainer has an expandable and contractible bellows portion formed between the sphere retaining portion and a portion of the facepiece fixed around the through hole.

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