JP3227839U - Face shield - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a face shield for preventing droplets including a virus scattered from the outside from invading eyes, nose and mouth.
SOLUTION: A face shield 10 has a substantially square resin transparent film 12 attached to eyeglasses 11 worn by the user in order to protect the user's face via a pair of left and right attachments 20. It is composed. The pair of left and right fixtures are symmetrically formed so that they can be attached to the pair of left and right temples 11a of the eyeglasses. The pair of left and right fixtures are an outer frame 21 formed in a square frame shape, a pair of temple arms 22 and 23 provided at both ends of the outer frame in the longitudinal direction, and an elastically deformable square frame. It has a shaped inner frame body 24 and an elastically deformable film arm 25, respectively. When the side edge of the transparent film is inserted between the inner frame and the film arm, the inner frame and the film arm are elastically deformed, so that the side edge of the transparent film is engaged between the inner frame and the film arm. It is configured to stop.
[Selection diagram] Fig. 1

Description

The present invention relates to a face shield worn by a medical worker or a store worker who is face-to-face with a long-term customer service to protect his / her face.

Conventionally, an operation consisting of a frame mounted on the head of a medical worker and a polarizing shield that covers at least the front part of the face and a part of the side surface of the medical worker and has a predetermined polarization characteristic for a three-dimensional image. The face guard for use is disclosed (see, for example, Patent Document 1 (claim 1, paragraph [0016], paragraph [0052], paragraph [0057], FIG. 1, FIG. 13)). The surgical face guard consists of a frame and a polarizing shield supported by the frame. The frame is a member for fixing to the wearer while supporting the polarizing shield, and is formed in a spectacle shape, for example. When the spectacle-shaped frame is worn, the polarizing shield is positioned so as to cover from the front part of the face in front of the wearer to the temple, which is a part of the side part of the face. Further, the vertical length of the polarizing shield can be increased to form a polarizing shield that covers substantially the entire front part of the face and a part of the side part of the face. Further, the frame may be attached to the forehead like a headband.

In the surgical face guard configured in this way, when the face is covered extensively by covering almost the entire front part of the face and a part of the side of the face with a polarizing shield, not only the eyes but also the mucous membranes such as the nose and mouth are covered. It is possible to protect the exposed part.

On the other hand, face protection in which a transparent base material having flexibility and a transparent resin layer (moss eye layer) in which a plurality of structures composed of concave or convex portions on the surface are provided at a pitch equal to or lower than the wavelength of visible light are laminated. A transparent film for use is disclosed (see, for example, Patent Document 2 (claim 1, paragraphs [0015] to [0017], paragraphs [0068] to [0070], FIG. 13)). In this transparent film for face protection, the refractive indexes of the transparent base material and the moth-eye layer are different, and the interface between the transparent base material and the moth-eye layer has waviness. Further, the transparent film is fixedly attached or detachably attached as a transparent shield material of a face mask type face protection shield used by medical professionals and the like to protect the face. That is, the face protection shield has a structure in which a transparent film is fixed to the face mask as an eye shield. The face mask covers a part of the wearer's nose, mouth and chin, and is held on the face with a string or the like.

The transparent film for face protection configured in this way has less reflected light even under a very high intensity lighting system, and has a remarkable light transmittance (wavelength 550 nm) of 98.5% or more, particularly 99% or more. It becomes an excellent transparent film. Further, since the refractive index of the transparent base material and the moth-eye layer are different and there is a swell at the interface between the transparent base material and the moth-eye layer, the thickness of the basal layer supporting the structure changes along the swell in the moth-eye layer. .. Therefore, for those who do not wear the transparent film for face protection, a rainbow-colored reflection pattern due to the interference of the reflected light on the front and back of the basal layer is observed on the transparent film. On the other hand, this reflective pattern is not observed by the wearer of the transparent film for protecting the face. Therefore, according to the face protection shield using the face protection transparent film, the field of view becomes remarkably bright for the wearer, the transparent film can be visually recognized by the non-wearer, and the handleability of the transparent film is improved. improves.

International Publication No. 2016/125551 Japanese Unexamined Patent Publication No. 2016-29446

In recent years, infectious diseases (for example, COVID-19 of coronavirus pneumonia) have become very prevalent, and when medical staff treat or care for infected people, they float in the air due to coughing or sneezing of infected people. When a healthcare worker inhales a droplet containing a virus through the nose or mouth, or when a droplet containing a virus gets into the eyes of a medical worker, the healthcare worker may get an infectious disease. Among the surgical face guards shown in Patent Document 1, in the face guard in which the polarizing shield is supported by the spectacle-shaped frame, the wearer wearing spectacles for vision correction is in a state of wearing spectacles twice. There was a problem that the top of the ear was pressed or heavier and the ear hurt. Further, among the surgical face guards shown in Patent Document 1, in the face guard in which the polarizing shield is supported by the headband, the head is tightened by the headband. Therefore, if the headband is worn for a long time, the head will be damaged. There was a problem that it hurt. Further, in the face protection shield having a structure in which a transparent film is fixed to the face mask shown in Patent Document 2 as an eye shield, the periphery of the eyes is protected by the transparent film from droplets containing viruses, but for medical use. If a general mask was used instead of a mask, droplets containing the virus could invade through the mask through the nose and mouth.

The first object of the present invention is that the burden on the ears is slightly increased even when worn by the user of eyeglasses for vision correction, and the headache due to the tightening of the head does not occur, and the external including the virus is contained. It is to provide a face shield that can prevent droplets scattered from the eyes, nose or mouth from entering. The second object of the present invention is that even a person who does not use eyeglasses for correcting eyesight can use eyeglasses with no prescription in the lens or an eyeglass frame with the lens removed, so that droplets containing a virus are scattered from the outside. The purpose is to provide a face shield that can prevent eyeglasses from entering the eyes, nose or mouth. A third object of the present invention is to provide a face shield capable of forming a fixture extremely compactly. A fourth object of the present invention is to provide a face shield capable of reliably preventing the transparent film from coming off between the inner frame and the film arm.

The first aspect of the present invention is that, as shown in FIGS. 1 to 4, a pair of left and right transparent films 12 made of substantially square plastic are formed on the glasses 11 worn by the user to protect the face of the user. The face shield 10 is configured to be attached via the attachments 20 and 30, and the pair of left and right attachments 20 and 30 can be attached to the pair of left and right temples 11a and 11b of the eyeglasses 11 symmetrically. The pair of left and right fixtures 20 and 30 are formed, and the outer frame bodies 21 and 31 formed in a square frame shape and the width directions of the outer frame bodies 21 and 31 at both ends in the longitudinal direction of the outer frame bodies 21 and 31. A pair of temple arms 22, 23, 32, 33 that are elastically deformed and can be engaged with the temples 11a, 11b of the spectacles 11, respectively, and when viewed from the direction facing the inside of the outer frame 21, 31. The elastically deformable square frame-shaped inner frame 24, 34 and the inner frame 24, 34 projecting from the outer frame 21, 31 in the longitudinal direction so as to fill the inside of the outer frame 21, 31. It has elastically deformable film arms 25 and 35 projecting from the outer frame bodies 21 and 31 in the longitudinal direction so as to fill the inside of the inner frame bodies 24 and 34 when viewed from the direction facing When the side edge of the transparent film 12 is inserted between the inner frame bodies 24 and 34 and the film arms 25 and 35, the inner frame bodies 24 and 34 and the film arms 25 and 35 are elastically deformed, so that the inner frame body is formed. The transparent film 12 is configured such that the side edges of the transparent film 12 are locked between the 24 and 34 and the film arms 25 and 35.

The second aspect of the present invention is the invention based on the first aspect, and as shown in FIGS. 5 and 9, the pair of temple arms 22, 23, 32, 33 are the outer frame bodies 21, 31. Both ends in the longitudinal direction of the outer frame bodies 21 and 31 are provided so as to extend in the width direction of the outer frame bodies 21 and 31, respectively, and the inner frame bodies 24 and 34 are provided in the outer frame bodies 21 and 31 at both ends in the longitudinal direction of the outer frame bodies 21 and 31. Along with one end piece 21a, 31a of the pair of end pieces 21a, 21b, 31a, 31b located at, the outer frame body 21,31 is formed into a square frame shape smaller than the outer frame bodies 21,31, and the film arms 25, 35 are one end piece. It is characterized in that the outer frame bodies 21 and 31 are projected from the 21a and 31a into the inner frame bodies 24 and 34 in the longitudinal direction.

The third aspect of the present invention is an invention based on the first aspect, and as shown in FIGS. 5 to 12, the outer frame bodies 21, 31, the inner frame bodies 24, 34 and the film arm 25, When 35 is viewed from these thickness directions, the outer frame bodies 21, 31 and the film arms 25, 35 are provided on the same plane, and the outer frame bodies 21, 31 and the film arms 25, 35 are inside. Inner frames 24 and 34 are provided so that a gap substantially equal to the thickness of the transparent film 12 is formed between the frames 24 and 34, and the inner frame is provided on both sides of the tips of the film arms 25 and 35. The first locking claws 25a and 35a are projected from the surfaces facing the transparent film 12 inserted between the bodies 24 and 34 and the film arms 25 and 35, and the tip pieces 24c and 34c of the inner frame bodies 24 and 34 are projected. The second locking claws 24d and 34d are projected from the surfaces of both sides facing the transparent film 12 inserted between the inner frame bodies 24 and 34 and the film arms 25 and 35, and a pair of inner frame bodies 24 and 34. Of the side pieces 24a, 24b, 34a, 34b of the above, the surface facing the transparent film 12 inserted between the inner frame bodies 24, 34 and the film arms 25, 35, and one of the first locking claws 25a, 35a. A pair of third locking claws 24e, 24e, 34e, and 34e are provided so as to project from the ends 21a and 31a of the above.

In the face shield of the first aspect of the present invention, the side edge of the transparent film is inserted between the inner frame of the left fixture and the arm for film, so that the left side of the transparent film is between the inner frame and the arm for film. By locking the edges and inserting the side edges of the transparent film between the inner frame of the right fixture and the arm for film, the left edge of the transparent film is locked between the inner frame and the arm for film. Furthermore, the pair of temple arms of the left fitting was locked to the temple on the left side of the glasses, and the pair of temple arms of the right fitting was locked to the temple on the right side of the glasses. When worn by a worker, it is possible to prevent droplets containing a virus floating in the air due to coughing or sneezing of an infected person from invading from the eyes, nose or mouth of a medical worker. Further, even if a user of eyeglasses for vision correction attaches a face shield to the eyeglasses, the face shield is extremely light, so that the burden on the ears is slightly increased. In addition, unlike a face guard that supports a polarizing shield with a conventional headband, headache does not occur by tightening the head with the headband. Further, in the case of a non-user of spectacles for vision correction, the face shield can be used by attaching the face shield to the spectacles having no prescription in the lens or the spectacle frame from which the lens has been removed.

In the face shield of the second aspect of the present invention, a pair of temple arms are provided outside both ends in the longitudinal direction of the outer frame body in the width direction of the outer frame body, and the inner frame body is provided inside the outer frame body. A square frame smaller than the outer frame is formed together with one of the pair of end pieces located at both ends in the longitudinal direction of the frame, and the film arm is formed from one end piece into the inner frame of the outer frame. Since it is projected in the longitudinal direction, the fixture can be formed extremely compactly.

In the face shield of the third aspect of the present invention, when the outer frame, the inner frame and the film arm are viewed from these thickness directions, the outer frame and the film arm are provided on the same plane and An inner frame is provided so that a gap substantially equal to the thickness of the transparent film is formed between the outer frame and the film arm and the inner frame, and the front end of the film arm faces the transparent film on both sides. The first locking claw is projected on the surface to be surfaced, and the second locking claw is projected on the surface of both sides of the tip piece of the inner frame facing the transparent film, and among the pair of side pieces of the inner frame. Since a pair of third locking claws are projected on one end side of the first locking claw on the surface facing the transparent film, when the transparent film is inserted between the inner frame and the film arm. , This transparent film is securely held by the first to third locking claws. As a result, it is possible to reliably prevent the transparent film from coming off between the inner frame and the film arm.

It is A arrow view which shows the spectacles which attached the face shield of the embodiment of this invention. It is a B arrow view of FIG. It is a C arrow view of FIG. It is a D arrow view of FIG. It is the E arrow view of FIG. 6 which shows the attachment on the left side. It is F arrow view of FIG. (A) is a view taken along the arrow G in FIG. 5, and (b) is a view taken along the arrow H in FIG. (A) is a cross-sectional view taken along the line I-I of FIG. 5, and (b) shows a state in which the left fitting is attached to the temple on the left side of the spectacles and the transparent film is attached to the left fitting. It is a corresponding sectional view. It is a J arrow view of FIG. 10 which shows the attachment on the right side. It is a K arrow view of FIG. FIG. 9A is a view taken along the arrow L in FIG. 9, and FIG. 9B is a view taken along the arrow M in FIG. (A) is a cross-sectional view taken along the line NN of FIG. 9, and (b) shows a state in which the right attachment is attached to the temple on the right side of the eyeglasses and the transparent film is attached to the right attachment. It is a corresponding sectional view.

Next, a mode for carrying out the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 4, in the face shield 10 of the present invention, a pair of left and right transparent films 12 made of substantially square plastic are attached to the glasses 11 worn by the user in order to protect the face of the user. It is configured to be attached via tools 20 and 30. The transparent film 12 is formed of a transparent plastic film having a thickness of about 0.1 mm to 0.3 mm, such as transparent polypropylene, polyethylene terephthalate, polyester, or vinyl chloride. The transparent film 12 can be freely cut and used according to the usage situation.

The pair of left and right fixtures 20 and 30 are symmetrically formed so as to be mountable on the pair of left and right temples 11a and 11b of the eyeglasses 11 (FIGS. 1 and 2). Further, the pair of left and right fittings 20 and 30 are formed in a square frame shape at both ends of the outer frame bodies 21 and 31 in the longitudinal direction and in the width direction of the outer frame bodies 21 and 31. A pair of temple arms 22, 23, 32, 33 that are extended, an elastically deformable square frame-shaped inner frame 24, 34, and an outer frame 21, 31 projecting in the longitudinal direction thereof. It has elastically deformable film arms 25 and 35, respectively. In this embodiment, the pair of left and right fixtures 20 and 30 are integrally formed by injection molding of a plastic such as polypropylene, polycarbonate, or polyacetal (FIGS. 1, 2, 5, and 9). If the fixture cannot be integrally formed by injection molding of plastic, the fixture is manufactured by forming each component of the fixture by injection molding of plastic and then adhering these parts. You may. Further, the fixture may be integrally formed by pressing a metal plate such as stainless steel instead of plastic. At this time, if the fixture cannot be integrally formed by pressing the metal plate, each component constituting the fixture is formed by press working, and then these parts are welded by spot welding or the like. , You may make a fixture.

The square frame-shaped outer frame 21 of the left fixture 20 includes a pair of end pieces 21a and 21b located at both ends in the longitudinal direction and an upper piece 21c connecting the upper ends of these end pieces 21a and 21b. , A lower piece 21d connecting the lower ends of the pair of end pieces 21a and 21b to each other (FIGS. 1 and 5 to 8). Further, in this embodiment, when the left attachment 20 is attached to the temple 11a on the left side of the spectacles 11, the outer frame 21 has the upper piece 21c from the lens 11c of the spectacles 11 with respect to the lower piece 21d. It is formed into a substantially parallel quadrilateral shape that is translated by a predetermined amount in the direction of separation. Further, the thickness of one end piece 21a of the pair of end pieces 21a, 21b on the side farther from the lens 11c of the spectacles 11 is formed to be thicker than the thickness of the other end 21b piece, the upper piece 21c, and the lower piece 21d. ..

On the other hand, the square frame-shaped outer frame 31 of the right fitting 30 is formed symmetrically with the square frame-shaped outer frame 21 of the left fitting 20. That is, the square frame-shaped outer frame 31 of the right fitting 30 has a pair of end pieces 31a and 31b located at both ends in the longitudinal direction and an upper piece connecting the upper ends of these end pieces 31a and 31b. It is composed of 31c and a lower piece 31d that connects the lower ends of the pair of end pieces 31a and 31b (FIGS. 2 and 9 to 12). Further, in the outer frame 31, when the right attachment 30 is attached to the right temple 11b of the spectacles 11, the upper piece 31c is attached to the lower piece 31d from the lens 11c of the spectacles 11. It is formed into a substantially parallel quadrilateral shape that is translated by a predetermined amount in the direction of separation. Further, the thickness of one end piece 31a of the pair of end pieces 31a, 31b on the side farther from the lens 11c of the eyeglass 11 is formed to be thicker than the thickness of the other end piece 31b, the upper piece 31c, and the lower piece 31d. ..

The pair of temple arms 22 and 23 of the left fitting 20 are elastically deformed and engaged with the temple 11a on the left side of the spectacles 11 (FIGS. 1, 4 and 8 (b)). Further, a pair of temple arms 22 and 23 are provided on both ends outside in the longitudinal direction of the outer frame body extending in the width direction of the outer frame body 21 (FIGS. 5 and 7). Specifically, the pair of temple arms 22 and 23 are temples on the left side of the glasses 11 from the pair of projecting pieces 22a and 23a in which both ends of the upper piece 21c of the outer frame 21 are extended in the longitudinal direction of the upper piece 21c, respectively. It is formed so as to extend downward while being curved so as to create spaces 22b and 23b (FIG. 7) capable of accommodating 11a. Reference numeral 22c in FIG. 7A is formed at the lower end of one of the pair of temple arms 22 and 23 for temples 22 to smoothly guide the temples 11a on the left side of the eyeglasses 11 to the space 22b. The reference numeral 23c in FIG. 7B is formed at the lower end of the other temple arm 23 of the pair of temple arms 22 and 23, and the temple 11a on the left side of the spectacles 11 is used as the space. It is a divergent portion for smoothly leading to 23b.

On the other hand, the pair of temple arms 32 and 33 of the right attachment 30 are formed symmetrically with the pair of temple arms 22 and 23 of the left attachment 20 (FIGS. 5 and 9). That is, the pair of temple arms 32 and 33 of the right fitting 30 are elastically deformed and engaged with the right temple 11b of the eyeglasses 11 (FIGS. 2, 4 and 12 (b)). ). Further, a pair of temple arms 32 and 33 are provided on both ends outside in the longitudinal direction of the outer frame 31 so as to extend in the width direction of the outer frame 31 (FIGS. 9 and 11). Specifically, the pair of temple arms 32 and 33 are temples on the right side of the glasses 11 from the pair of projecting pieces 32a and 33a in which both ends of the upper piece 31c of the outer frame 31 are extended in the longitudinal direction of the upper piece 31c, respectively. It is formed so as to extend downward while being curved so as to create spaces 32b and 33b (FIG. 11) capable of accommodating 11b. Reference numeral 32c in FIG. 11A is formed at the lower end of one of the pair of temple arms 32 and 33, and is for smoothly guiding the temple 11b on the right side of the spectacles 11 to the space 32b. 33c in FIG. 11B is formed at the lower end of the other temple arm 33 of the pair of temple arms 32 and 33, and the temple 11b on the right side of the spectacles 11 is used as the space. It is a divergent portion for smoothly leading to 33b.

The inner frame 24 of the left fitting 20 is projected from the outer frame 21 in the longitudinal direction so as to fill the inside of the outer frame 21 when viewed from the direction facing the inside of the outer frame 21 (FIG. 5). ). The inner frame body 24 has a square frame shape smaller than the outer frame body 21 together with one end piece 21a of a pair of end pieces 21a and 21b located at both ends of the outer frame body 21 in the longitudinal direction in the outer frame body 21. Is formed in. Further, when the outer frame 21 and the inner frame 24 are viewed from these thickness directions, a gap substantially equal to the thickness of the transparent film 12 is formed between the outer frame 21 and the inner frame 24. The inner frame body 24 is provided as described above (FIGS. 6 and 8). Further, the inner frame body 24 has one end piece 21a forming a part of the outer frame body 21, and the upper piece 21c and the lower piece 21d of the outer frame body 21 when viewed from the direction facing the inside of the outer frame body 21. Along the pair of side pieces 24a and 24b extending along the upper piece 21c and the lower piece 21d with a gap, and along the other end piece 21b of the outer frame 21 when viewed from the direction facing the inside of the outer frame 21. And it is composed of a tip piece 24c extending from the other end piece 21b with a gap (FIG. 5).

On the other hand, the inner frame 34 of the right fitting 30 is formed symmetrically with the inner frame 24 of the left fitting 20 (FIGS. 5 and 9). That is, the inner frame 34 of the right fitting 30 is projected from the outer frame 31 in the longitudinal direction so as to fill the inside of the outer frame 31 when viewed from the direction facing the inside of the outer frame 31 ( FIG. 9). The inner frame 34 has a square frame shape smaller than the outer frame 31 together with one end piece 31a of a pair of end pieces 31a and 31b located at both ends of the outer frame 31 in the longitudinal direction in the outer frame 31. Is formed in. Further, when the outer frame 31 and the inner frame 34 are viewed from these thickness directions, a gap substantially equal to the thickness of the transparent film 12 is formed between the outer frame 31 and the inner frame 34. The inner frame body 34 is provided as described above (FIGS. 10 and 12). Further, the inner frame 34 has one end piece 31a forming a part of the outer frame 31 and the upper piece 31c and the lower piece 31d of the outer frame 31 when viewed from the direction facing the inside of the outer frame 31. Along the pair of side pieces 34a and 34b extending along the upper piece 31c and the lower piece 31d with a gap, and along the other end piece 31b of the outer frame 31 when viewed from the direction facing the inside of the outer frame 31. It is also composed of a tip piece 34c extending from the other end piece 31b with a gap (FIG. 9).

The film arm 25 of the left fixture 20 is projected from the outer frame 21 in the longitudinal direction so as to fill the inside of the inner frame 24 when viewed from the direction facing the inside of the inner frame 24 (FIG. 5). ). Specifically, the film arm 25 projects from one end piece 21a into the inner frame body 24 in the longitudinal direction of the outer frame body 21. Further, when the outer frame 21, the inner frame 24, and the film arm 25 are viewed from these thickness directions, the film arm 25 is provided on the same plane as the outer frame 21 (FIGS. 6 and 8). ). As a result, the film arm 25 is provided so that a gap substantially equal to the thickness of the transparent film 12 is formed between the outer frame 21 and the film arm 25 and the inner frame 24. Further, when viewed from the direction facing the inside of the inner frame body 24, both side edges of the film arm 25 are along the pair of side pieces 24a and 24b of the inner frame body 24 and have a gap from the pair of side pieces 24a and 24b. The film arm 25 is provided with a gap, and the tip surface of the film arm 25 is provided so as to face the tip piece 24c of the inner frame body 24 and with a gap from the tip piece 24c (FIG. 5).

On the other hand, the film arm 35 of the right attachment 30 is formed symmetrically with the film arm 25 of the left attachment 20 (FIGS. 5 and 9). That is, the film arm 35 of the attachment 30 on the right side is projected from the outer frame 31 in the longitudinal direction so as to fill the inside of the inner frame 34 when viewed from the direction facing the inside of the inner frame 34 ( FIG. 9). Specifically, the film arm 35 projects from one end piece 31a into the inner frame 34 in the longitudinal direction of the outer frame 31. Further, when the outer frame body 31, the inner frame body 34, and the film arm 35 are viewed from these thickness directions, the film arm 35 is provided on the same plane as the outer frame body 31 (FIGS. 10 and 12). ). As a result, the film arm 35 is provided so that a gap substantially equal to the thickness of the transparent film 12 is formed between the outer frame 31 and the film arm 35 and the inner frame 34. Further, when viewed from the direction facing the inside of the inner frame body 34, both side edges of the film arm 35 are along the pair of side pieces 34a and 34b of the inner frame body 34 and have a gap from the pair of side pieces 34a and 34b. The film arm 35 is provided with a gap, and the tip surface of the film arm 35 is provided so as to face the tip piece 34c of the inner frame body 34 and with a gap from the tip piece 34c (FIG. 9).

On the other hand, when the side edge of the transparent film 12 is inserted between the inner frame body 24 of the left fitting 20 and the film arm 25, the inner frame body 24 and the film arm 25 are elastically deformed, so that the inner frame body The side edge of the transparent film 12 is configured to be locked between the 24 and the film arm 25 (FIG. 8 (b)). Further, the first locking claw 25a is projected on the surface of both sides of the tip of the film arm 25 facing the inner frame body 24 and the transparent film 12 inserted between the film arms 25, and the inner frame is formed. A second locking claw 24d is projected from both sides of the tip piece 24c of the body 24 facing the transparent film 12 inserted between the inner frame body 24 and the film arm 25 (FIGS. 5 and 5). 6 and FIG. 8). Further, of the pair of side pieces 24a and 24b of the inner frame body 24, the surface facing the transparent film 12 inserted between the inner frame body 24 and the film arm 25 and one end from the first locking claw 25a. A pair of third locking claws 24e and 24e are projected on the side of the piece 21a, respectively.

On the other hand, when the side edge of the transparent film 12 is inserted between the inner frame 34 of the right fixture 30 and the film arm 35, the inner frame 34 and the film arm 35 are elastically deformed to the inner side. The side edge of the transparent film 12 is configured to be locked between the frame body 34 and the film arm 35 (FIG. 12 (b)). Further, the first locking claw 35a is projected from both sides of the tip end portion of the film arm 35 and faces the transparent film 12 inserted between the inner frame body 34 and the film arm 35, and the inner frame is formed. A second locking claw 34d is projected from both sides of the tip piece 34c of the body 34 so as to face the transparent film 12 inserted between the inner frame body 34 and the film arm 35 (FIGS. 9, FIG. 10 and FIG. 12). Further, of the pair of side pieces 34a and 34b of the inner frame body 34, the surface facing the transparent film 12 inserted between the inner frame body 34 and the film arm 35 and one end from the first locking claw 35a. A pair of third locking claws 34e and 34e are projected on the side of the piece 31a, respectively.

How to use the face shield 10 configured in this way will be described. First, by inserting the left edge of the transparent film 12 between the inner frame 24 of the left fixture 20 and the film arm 25, the left edge of the transparent film 12 is engaged between the inner frame 24 and the film arm 25. Stop it. At this time, since the transparent film 12 is securely held by the first to third locking claws 25a, 24d, 24e, it is possible to reliably prevent the transparent film 12 from coming off between the inner frame body 24 and the film arm 25. .. Next, by inserting the right edge of the transparent film 12 between the inner frame 34 of the right fitting 30 and the film arm 35, the left edge of the transparent film 12 is engaged between the inner frame 34 and the film arm 35. Stop it. At this time, since the transparent film 12 is securely held by the first to third locking claws 35a, 34d, 34e, it is possible to reliably prevent the transparent film 12 from coming off between the inner frame 34 and the film arm 35. .. Next, the pair of temple arms 22 and 23 of the left fitting 20 are locked to the temple 11a on the left side of the spectacles 11. Further, the pair of temple arms 32, 33 of the right fitting 30 are locked to the right temple 11b of the spectacles 11. By wearing the glasses 11 for example, it is possible to prevent droplets containing a virus floating in the air due to coughing or sneezing of an infected person from invading from the eyes, nose or mouth of the medical worker.

With the face shield 10 configured in this way, even if the user of the spectacles for vision correction attaches the face shield 10 to the spectacles 11, the face shield 10 is extremely light, so that the burden on the ears is slightly increased. .. In addition, unlike a face guard that supports a polarizing shield with a conventional headband, headache does not occur by tightening the head with the headband. Further, in the case of a non-user of eyeglasses for correcting eyesight, the face shield 10 can be used by attaching the face shield 10 to the eyeglasses 11 having no degree in the lens 11c or the eyeglass frame 11 from which the lens has been removed. Further, a pair of temple arms 22, 23, 32, 33 are provided on both ends outside in the longitudinal direction of the outer frame bodies 21, 31 extending in the width direction of the outer frame bodies 21, 31, respectively, and the inner frame bodies 24, 34 are provided. Outer frame bodies 21 and 31 together with one end piece 21a and 31a of a pair of end pieces 21a, 21b, 31a and 31b located at both ends of the outer frame bodies 21 and 31 in the longitudinal direction in the outer frame bodies 21 and 31. Since it was formed into a smaller square frame shape and the film arms 25 and 35 were projected into the inner frame bodies 24 and 34 from one end piece 21a and 31a in the longitudinal direction of the outer frame bodies 21 and 31, the fixture 20 , 30 can be formed extremely compactly.

10 Face shield 11 Eyeglasses 11a, 11b Temple 12 Transparent film 20, 30 Fixtures 21, 31 Outer frame 21a, 31a One end piece 21b, 31b The other end piece 22, 23, 32, 33 Temple arm 24, 34 Inner frame body 24a, 24b, 34a, 34b Side pieces 24c, 34c Tip pieces 24d, 34d Second locking claws 24e, 34e Third locking claws 25, 35 Film arms 25a, 35a First locking claws

Claims (3)

A face shield configured such that a substantially square plastic transparent film is attached to the eyeglasses worn by the user in order to protect the user's face via a pair of left and right attachments.
The pair of left and right fixtures are symmetrically formed so that they can be attached to the pair of left and right temples of the glasses.
The pair of left and right fixtures
The outer frame formed in the shape of a square frame and
A pair of temple arms extending in the width direction of the outer frame at both ends in the longitudinal direction of the outer frame and elastically deforming and engaging with the temples of the eyeglasses.
An elastically deformable square frame-shaped inner frame projecting from the outer frame in the longitudinal direction so as to fill the outer frame when viewed from the direction facing the outer frame.
Each has an elastically deformable film arm projecting from the outer frame body in the longitudinal direction so as to fill the inner frame body when viewed from the direction facing the inner frame body.
When the side edge of the transparent film is inserted between the inner frame and the film arm, the inner frame and the film arm are elastically deformed, so that between the inner frame and the film arm. A face shield characterized in that the side edges of the transparent film are locked. The pair of temple arms are provided on both ends of the outer frame in the longitudinal direction extending in the width direction of the outer frame, respectively, and the inner frame is provided in the outer frame in the longitudinal direction of the outer frame. A square frame smaller than the outer frame is formed together with one of the pair of end pieces located at both ends, and the film arm is formed from the one end piece into the inner frame by the length of the outer frame. The face shield according to claim 1, which is projected in the direction. When the outer frame, the inner frame and the film arm are viewed from these thickness directions, the outer frame and the film arm are provided on the same plane, and the outer frame and the film arm are provided. The inner frame is provided so that a gap substantially equal to the thickness of the transparent film is formed between the film arm and the inner frame, and the inner frame is provided on both sides of the tip of the film arm. A first locking claw is projected on a surface facing the transparent film inserted between the body and the film arm, and between the inner frame and the film arm on both sides of the tip piece of the inner frame. A second locking claw is projected on a surface facing the transparent film inserted into the transparent film, and the transparent film inserted between the inner frame and the film arm among a pair of side pieces of the inner frame. The face shield according to claim 1, wherein a pair of third locking claws are projected from the first locking claw on one end side of the surface facing the first locking claw.

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