JP2022017720A - Face shield - Google Patents

Abstract

To provide a face shield that can effectively prevent droplet infection and improve user convenience.SOLUTION: A face shield includes a sheet-shaped shield main body 10, a support member 20, and a pair of fasteners 30. The shield main body 10 covers at least eyes. The support member 20 has a pair of temple portions 21 and a front portion 22, and supports the shield main body 10 on a user's head. The front portion 22 is long in a left-right direction of a face, and the pair of temple portions 21 are connected to both ends. The pair of fasteners 30 fix the shield main body 10 to the support member 20 so as to be rotatable around a rotation axis I extending along the left-right direction of the face.SELECTED DRAWING: Figure 1

Description

The present invention relates to a face shield, and more particularly to a face shield which is effective in preventing droplet infection and is excellent in convenience when worn.

Regarding a face shield for preventing droplet infection, Patent Document 1 describes a removable shield that can be attached to a normal mask covering the mouth. The removable shield described in Patent Document 1 has a transparent shield main body that covers the eye area and a connecting portion that connects the shield main body to the mask. The connecting portion engages with the fiber of the non-woven fabric which is the material of the mask in a hook-and-loop manner, and fixes the shield body to the mask.

Japanese Unexamined Patent Publication No. 2020-73752

However, in the removable shield described in Patent Document 1, since the connecting portion engages with the fibers of the mask in a hook-and-loop fashion manner, it is fully conceivable that the mask will be damaged if the shield is repeatedly attached and detached. .. In addition, when reading small letters or carrying a drink to the mouth, it is necessary to remove the shield body from the face together with the mask, which may make the user feel complicated.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a face shield capable of effectively preventing droplet infection and improving user convenience.

The face shield disclosed in the present application includes a sheet-shaped shield main body (10), a support member (20), and a pair of fasteners (30). The shield body (10) covers at least the eye area. The support member (20) has a pair of temple portions (21) and a front portion (22), and supports the shield main body (10) on the user's head. The front portion (22) is long in the left-right direction of the face, and the pair of temple portions (21) are connected to both ends. The pair of fasteners (30) rotatably fix the shield body (10) to the support member (20) about the rotation axis (I) extending along the left-right direction of the face. ..

In the face shield disclosed in the present application, the shield main body (10) has a pair of left and right shaft holes (11) as a rotation center and a pair of left and right sliding contact portions (12). The pair of sliding contact portions (12) have an outer edge (12a) formed in an arc shape centered on the pair of shaft holes (11), and the pair is formed when the shield main body (10) rotates. It is in sliding contact with the fastener (30) of. Further, each of the pair of fasteners (30) has a mounting convex portion (31). The mounting convex portion (31) is inserted into one of the pair of shaft holes (11) to pivotally support the shield main body (10).

In the face shield disclosed in the present application, the shield body (10) has at least a pair of defining portions (12b, 12c). The at least pair of defining portions (12b, 12c) are formed so as to be continuous with both ends of the outer edge (12a) at at least one of the pair of sliding contact portions (12), and are in contact with the pair of fasteners (30). , The rotation range of the shield main body (10) is defined.

In the face shield disclosed in the present application, the pair of temple portions (21) each have a mounting recess (23). The mounting recess (23) fits into the mounting protrusion (31) of the pair of fasteners (30). Further, the pair of fasteners (30) each have a length direction along the front-back direction of the face. The pair of fasteners (30) further have an insertion portion (32) and a holding portion (33). One of the pair of temples (21) is inserted into the insertion portion (32). The holding portion (33) is disposed between the mounting convex portion (31) and the insertion portion (32) in the length direction, and is in sliding contact with one of the pair of sliding contact portions (12). The shield main body (10) is held at a constant angle with respect to the pair of temple portions (21).

According to the face shield of the present invention, it is possible to effectively prevent droplet infection and improve the convenience of the user.

It is a perspective view which shows the face shield in the use state which concerns on embodiment of this invention. It is a perspective view which shows the face shield in another use state which concerns on embodiment of this invention. It is a top view which shows the shield main body. It is a perspective view which shows the detail of a fastener. It is sectional drawing which shows the fastener in use state. It is a perspective view which shows the face shield which concerns on other embodiment of this invention.

Hereinafter, the face shield according to the embodiment of the present invention will be described in detail with reference to the drawings. Since the embodiments described below are preferable specific examples for carrying out the present invention, various technical restrictions are made, but the present invention particularly limits the invention in the following description. Is not limited to this embodiment unless otherwise specified.

<Embodiment>
Hereinafter, the face shield according to the embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a perspective view showing a face shield in a used state according to an embodiment. FIG. 2 is a perspective view showing a face shield in another usage state according to the embodiment. FIG. 3 is a plan view showing the shield main body. FIG. 4 is a perspective view showing the details of the fastener. FIG. 5 is a cross-sectional view showing a fastener in a used state. FIG. 6 is a perspective view showing a face shield according to another embodiment.

As shown in FIGS. 1 and 2, the face shield according to the embodiment is removable in a glasses manner, and includes a shield main body 10, a support member 20, and a pair of fasteners 30.

The shield body 10 has a sheet shape and at least covers the eyes. In this embodiment, the shield body 10 covers the entire face including the mouth and nose. As the material of the shield main body 10, polyethylene terephthalate and polycarbonate can be preferably used, and a bendable and elastic transparent synthetic resin sheet such as polypropylene, polyamide, polyester or a cellulosic resin having excellent decomposability can be preferably used. The shield main body 10 may be colorless and transparent, may be colored and transparent, and may have a smoke color that dims visible light. Further, the shield main body 10 can be subjected to anti-fog, antireflection processing, scratch resistance processing and the like.

The support member 20 has a pair of temple portions 21 and a front portion 22, and supports the shield main body 10 on the head of the user 1. In this specification, the term "user's head" is used as a concept including the head and face of the user 1.

The pair of temple portions 21 are hung on the ears and supports the shield main body 10 on the temporal region of the user 1 in the same manner as ordinary glasses.

The front portion 22 is long in the left-right direction of the face, and a pair of temple portions 21 are connected to both ends. In the embodiment, the front portion 22 has a shape in which an upwardly curved curved portion is connected by a bridge corresponding to the upper portion of the rim in ordinary glasses, and has a nose pad 22a. Since the front portion 22 includes the curved portion, the face shield can be easily attached while wearing ordinary glasses such as myopia glasses.

As shown in FIGS. 1 and 2, the pair of fasteners 30 can rotate around a rotation axis I (see FIG. 5) extending along the left-right direction X1 of the face, and support the shield main body 10. Fix to 20. Since the shield main body 10 is rotatable about the rotation axis I, the shield main body 10 is in a state of being substantially parallel to the face (see FIG. 1) and the lower end is moved above the face. It is rotatable between the open state (see FIG. 2), which is the used state of.

Hereinafter, the rotation mechanism of the shield main body 10 will be described in detail.

As shown in FIG. 3, the shield main body 10 has a pair of left and right shaft holes 11 and a pair of left and right sliding contact portions 12.

The center of the pair of shaft holes 11 substantially coincides with the rotation axis I in a state where the shield body 10 is fixed to the support member 20 by the pair of fasteners 30, and becomes the rotation center of the shield body 10. It is a part.

The pair of sliding contact portions 12 are in sliding contact with the pair of fasteners 30 when the shield main body 10 is rotated. Further, each of the pair of sliding contact portions 12 has an arc-shaped outer edge 12a centered on the pair of shaft holes 11. The shield body 10 has at least a pair of defining portions 12b and 12c. In the embodiment, the shield main body 10 has two pairs of defining portions 12b and 12c.

At least a pair of defining portions 12b and 12c are formed so as to be continuous with both ends of the outer edge 12a at at least one of the pair of sliding contact portions 12, and define the rotation range of the shield main body 10. In the embodiment, when the shield main body 10 is in the used state shown in FIG. 1, the lower regulation portion 12c of the pair of regulation portions 12b and 12c comes into contact with the fastener 30. Further, when the shield main body 10 is in the open state shown in FIG. 2, the upper regulation portion 12b of the pair of regulation portions 12b and 12c comes into contact with the fastener 30.

As shown in FIGS. 4 and 5, the pair of fasteners 30 each have a length direction along the front-back direction X2 of the face, and also have a mounting convex portion 31 and an insertion portion 32, respectively. In embodiments, the pair of fasteners 30 are formed from soft resins such as polyurethane, thermoplastic elastomers, polyvinyl chloride, silicone rubber, and synthetic rubber.

The mounting convex portion 31 has a large-diameter press-fitting portion 31a on the tip end side and a small-diameter portion 31b on the proximal end side. Each small diameter portion 31b fits into a pair of shaft holes 11. As shown in FIG. 5, each of the pair of temple portions 21 has a mounting recess 23 which is a rotation center of the shield main body 10. In the embodiment, the mounting recess 23 is formed as a through hole penetrating the temple portion 21 in the thickness direction.

Further, the mounting convex portion 31 is inserted into one of the pair of shaft holes 11 to pivotally support the shield main body 10 and to fit with the mounting concave portion 23 in one of the pair of temple portions 21. In the embodiment, as shown in FIG. 5, the press-fitting portion 31a of the mounting convex portion 31 is press-fitted into the mounting recess 23 in a state where the mounting convex portion 31 is inserted into the shaft hole 11 of the shield main body 10 up to the small diameter portion 31b. By doing so, the shield main body 10 is rotatably fixed to the pair of temple portions 21 about the rotation axis I1.

As shown in FIGS. 4 and 5, the insertion portion 32 of the pair of fasteners 30 has a hole through which one of the pair of temple portions 21 is inserted. Further, when the shield main body 10 rotates about the rotation axis I, the insertion portion 32 comes into contact with the specified portions 12b and 12c to define the rotation range of the shield main body 10.

As shown in FIGS. 4 and 5, the holding portion 33 is arranged between the mounting convex portion 31 and the insertion portion 32 in the length direction of the fastener 30, and is in sliding contact with one of the pair of sliding contact portions 12. , The shield main body 10 is held at a constant angle with respect to the pair of temple portions 21. In the embodiment, the holding portion 33 holds the shield main body 10 at a constant angle with respect to the pair of temple portions 21 so as to sandwich the sliding contact portion 12 of the shield main body 10 with the temple portion 21. In particular, since the fastener 30 is formed of the soft resin as described above, a relatively large frictional force acts between the sliding contact portion 12 and the holding portion 33 of the shield main body 10, and the shield main body 10 is formed. It can be stably held at a constant angle, and the shield main body 10 can be stably held in a used state (see FIG. 1) or an open state (see FIG. 2).

As described above with reference to FIGS. 1 to 7, according to the face shield of the embodiment, the sheet-shaped shield main body 10 is long in the pair of temple portions 21 and the face in the left-right direction X1 and is paired. The temple portion 21 is supported by the head of the user 1 by a support member 20 having a front portion 22 connected to both ends. Therefore, the face shield can be attached and detached in the same way as ordinary glasses. Compared to the case where the shield body is fixed to the head with a rubber band, for example, the head is not pressed and the wearing feeling of the face shield is improved. Can be done.

Further, since the shield main body 10 covers at least the eye area, it is possible to shut out the flying of droplets to the eye area, which cannot be prevented by a normal mask alone, and it is possible to effectively prevent droplet infection. Further, as shown in FIGS. 1 and 2, if the shield main body 10 has a shape that further covers the nose and the mouth, it is possible to shut out the scattering of droplets forward, and it is possible to more effectively prevent droplet infection.

Further, according to the face shield of the embodiment, the shield main body 10 is rotatably fixed to the support member 20 about the rotation axis I extending along the left-right direction X1 of the face by a pair of fasteners 30. Shield. Therefore, for example, the shield main body 10 can be rotated between the used state shown in FIG. 1 and the open state shown in FIG. 2, and it is not necessary to remove the face shield from the face when carrying a drink to the mouth, and the user does not need to remove it. The convenience of the can be improved.

Further, according to the face shield of the embodiment, the shield main body 10 has at least a pair of defining portions 12b and 12c that define a rotation range, and the pair of defining portions 12b and 12c are outer edges 12a of the sliding contact portion 12. It is formed in a row at both ends of the. Therefore, by appropriately setting the length of the outer edge 12a and the positions of the pair of defining portions 12b and 12c, the rotation range of the shield main body 10 can be appropriately set. For example, the shield main body 10 is opened. When this is done, the rotation range can be defined so that the upper end of the shield body 10 does not hit the user's forehead, and the usability of the face shield can be further improved.

Further, according to the face shield of the embodiment, the outer edge 12a of the sliding contact portion 12 in the shield main body 10 has an arc shape centered on the shaft hole 11 so that the shield main body 10 can be held in the entire rotation range of the shield main body 10. The area of the sliding contact portion 12 that is in sliding contact with the portion 33 can be made constant, the frictional force between the holding portion 33 and the sliding contact portion 12 can be made constant, and the holding portion 33 can stably hold the shield body 10. Can be held at a fixed angle.

Next, another embodiment of the present invention will be described with reference to FIG. FIG. 6 is a perspective view showing a face shield according to another embodiment of the present invention.

As shown in FIG. 6, in the face shield of the present embodiment, the shield main body 10A has a shape that does not cover the mouth and nose of the user 1 but covers only the eyes. The configuration other than the shield main body 10A is the same as that of the above embodiment. Since the shield body 10A has a shape that covers only the eye area, the face shield can be made lighter, and droplets can be prevented from flying to the eye area, which cannot be prevented by a normal mask alone, to prevent droplet infection. It can be effectively prevented.

Further, by rotating the shield body 10A so that the lower end of the shield body 10A moves above the face, the shield body 10A can be rotated to open the face shield, for example, when reading fine characters. It is not necessary to remove the face, and the convenience of the user can be improved.

The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 5). However, the present invention is not limited to the above embodiment, and can be implemented in various embodiments without departing from the gist of the present invention (for example, (1) to (2) below).

(1) In the above embodiment, the pair of fasteners 30 are fixed to the temple portion 21 by fitting the mounting convex portion 31 of the pair of fasteners 30 with the mounting recess 23 formed in the temple portion 21. However, the present invention is not limited to this, and each fastener 30 is fixed to the temple portion 21 only by the insertion portion through which the temple portion 21 is inserted, for example, instead of fitting the mounting convex portion 31 and the mounting concave portion 23. Alternatively, the shield main body 10 may be held at a constant angle by the frictional force between the inner surface of the insertion portion and the sliding contact portion 12.

(2) In the above embodiment, the front portion 22 is not to which a spectacle lens is attached, and has a shape that can be attached together with, for example, ordinary myopia glasses, but the front portion 22 can fix the spectacle lens. It may have a shape and strength. For example, the front portion 22 may have two annular rims and a bridge like ordinary glasses, and may have a structure similar to so-called rimless glasses or half-border glasses. Since the front portion 22 can fix the spectacle lens, it is possible to add a function as, for example, myopia glasses to the face shield, and it is possible to further improve the convenience of the user.

I ... Rotation axis center X1 ... Face left-right direction X2 ... Face front-back direction 10 ... Shield body 11 ... Shaft hole 12 ... Sliding contact portion 12a ... Outer edge 12b, 12c ... Regulation part 20 ... Support member 21 ... Temple part 22 ... Front portion 23 ... Mounting recess 30 ... Fastener 31 ... Mounting convex portion 32 ... Insertion portion 33 ... Holding portion

Claims (4)

At least a sheet-shaped shield body (10) that covers the eyes,
It has a pair of temples (21) and a front part (22) that is long in the left-right direction of the face and the pair of temples (21) are connected to both ends, and the shield body (10) is the head of the user. A support member (20) that supports the portion and
A pair of fasteners (30) for fixing the shield body (10) to the support member (20) so as to be rotatable around a rotation axis (I) extending along the left-right direction of the face.
A face shield characterized by being equipped with. The shield body (10) is
A pair of left and right shaft holes (11) that serve as the center of rotation,
An outer edge (12a) is formed in an arc shape centered on the pair of shaft holes (11), and a pair of left and right sides that are in sliding contact with the pair of fasteners (30) when the shield body (10) rotates. Has a sliding contact portion (12) of
The first aspect of the present invention, wherein the pair of fasteners (30) are inserted into one of the pair of shaft holes (11) and each has a mounting convex portion (31) that pivotally supports the shield body (10). Face shield. The shield main body (10) is formed so as to be continuous with both ends of the outer edge (12a) at at least one of the pair of sliding contact portions (12), and is in contact with the pair of fasteners (30) to be in contact with the shield main body (10). The face shield according to claim 2, which has at least a pair of defining portions (12b, 12c) that define the rotation range of 10). The pair of temple portions (21)
Each of the pair of fasteners (30) has a mounting recess (23) to be fitted with the mounting convex portion (31).
The pair of fasteners (30)
Each has a length direction along the front-back direction of the face,
An insertion portion (32) through which one of the pair of temple portions (21) is inserted,
Arranged between the mounting convex portion (31) and the insertion portion (32) in the length direction, the shield main body (10) is slidably contacted with one of the pair of sliding contact portions (12). A holding portion (33) that holds a pair of temple portions (21) at a constant angle.
The face shield according to claim 2 or 3, further comprising.

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