JP7794385B2 - Anti-splash mouth shield - Google Patents

Description

The present invention relates to a droplet-proof mouth shield that prevents the spread of droplets by covering the user's nose and mouth.

Patent Document 1 below discloses an example of a conventional splash guard. This splash guard comprises a transparent, flat main body plate made of synthetic resin. Two upward-projecting protrusions are formed on the top of the main body plate, spaced apart in the left-right direction as seen by the user, and each protrusion has a through-hole. When using the splash guard, the left temple of the eyeglasses is inserted into the through-hole of the left protrusion, and the right temple of the eyeglasses is inserted into the through-hole of the right protrusion, and the entire combination of the eyeglasses and splash guard is placed on the user's face. The main body plate is then suspended in front of the face by the temples of the eyeglasses, covering the user's nose and mouth.

Utility Model Registration No. 3230233

However, with the splash prevention mouth shield in Patent Document 1, the main plate is suspended from the temples of the glasses, which narrows the gap between the main plate and the face, causing the face to become hot and stuffy.

The present invention was made to address the above problem and aims to provide a splash-proof mouth shield that prevents the user's face from becoming hot and stuffy.

In order to achieve the above-mentioned object, the splash prevention mouth shield of the present invention is characterized in that it comprises a transparent, plate-shaped shield portion that covers the user's nose and mouth, a shield support portion that supports the shield portion in a curved state so that it bulges forward when viewed from the front, a mounting portion that is attached to the user's face, and a connecting portion that connects the shield support portion and the mounting portion while keeping them spaced apart, and a nose hook portion that is attached to the user's nose at the left-right center of the mounting portion, and the left-right center of the shield support portion and the left-right center of the mounting portion are connected via the connecting portion, and the connecting portion is respectively attached to one end and the other end of the nose hook portion located on the left and right sides of the bridge of the user's nose, and a left temple hook portion that is attached to the left temple of eyeglasses at the rear end on the left side of the mounting portion, and a right temple hook portion that is attached to the right temple of eyeglasses at the rear end on the right side of the mounting portion .

In this configuration, the plate-shaped shield portion is supported by the shield support portion, and the lateral center portion of the shield support portion and the lateral center portion of the mounting portion are connected while being spaced apart from each other, allowing the shield portion to be positioned sufficiently away from the user's face. Furthermore, the lateral center portion of the mounting portion is supported by the user's nose at the nose piece portion, allowing the shield support portion and the shield portion connected to the lateral center portion of the mounting portion to be accurately positioned relative to the user's nose and mouth, eliminating the need to make the shield portion larger than necessary. This effectively prevents the user's face from becoming too hot and stuffy. Furthermore, in this configuration, the mounting portion can be easily and stably attached to the user's face by hooking the left and right temple hook portions onto the left and right temples of the eyeglasses worn by the user and hooking the nose piece portion onto the user's nose.

In order to achieve the above object, the splash prevention mouth shield according to the present invention is characterized by comprising a transparent, plate-shaped shield part that covers the nose and mouth of a user, a shield support part that supports the shield part in a curved state so that it bulges forward when viewed from the front, a wearing part that is attached to the face of the user, and a connecting part that connects the shield support part and the wearing part in a state where they are spaced apart from each other, and a nose hook that is attached to the nose of the user is provided at the left-right center of the wearing part, and the left-right center of the shield support part and the left-right center of the wearing part are connected by the connecting part. The connecting parts are connected to one end and the other end of the nose hook part located on the left and right sides of the bridge of the user's nose, respectively , and the left rear end of the wearing part is selectively and detachably provided with either a left ear hook part to be hung on the user's left ear or a left temple hook part to be hung on the left temple of the eyeglasses, and the right rear end of the wearing part is selectively and detachably provided with either a right ear hook part to be hung on the user's right ear or a right temple hook part to be hung on the right temple of the eyeglasses .

In this configuration, the plate-shaped shield portion is supported by the shield support portion, and the lateral center of the shield support portion and the lateral center of the mounting portion are connected while being spaced apart, allowing the shield portion to be positioned sufficiently away from the user's face. Furthermore, the lateral center of the mounting portion is supported by the user's nose at the nose hook portion, allowing the shield support portion and the shield portion connected to the lateral center of the mounting portion to be accurately positioned relative to the user's nose and mouth, eliminating the need to make the shield portion larger than necessary. This effectively prevents the user's face from becoming too hot and stuffy. Furthermore, in this configuration, the left and right ear hook portions allow the mounting portion to be easily and stably attached to the face of a user who does not wear eyeglasses, and the left and right temple hook portions allow the mounting portion to be easily and stably attached to the face of a user who wears eyeglasses.

In order to achieve the above-mentioned object, the splash prevention mouth shield of the present invention is characterized in that it comprises a transparent, plate-shaped shield portion that covers the user's nose and mouth, a shield support portion that supports the shield portion in a curved state so that it bulges forward when viewed from the front, a mounting portion that is attached to the user's face, and a connecting portion that connects the shield support portion and the mounting portion while keeping them spaced apart, and a nose hook portion that can be placed over the user's nose is provided at the left-right center of the mounting portion, and the left-right center of the shield support portion and the left-right center of the mounting portion are connected via the connecting portion, and a left temple hook portion that can be placed over the part of the left temple of the eyeglasses that can be placed over the user's ear is provided at the left rear end of the mounting portion, and a right temple hook portion that can be placed over the part of the right temple of the eyeglasses that can be placed over the user's ear is provided at the right rear end of the mounting portion.

In this configuration, the plate-shaped shield is supported by the shield support, and the lateral center of the shield support and the lateral center of the mounting part are connected while being spaced apart, allowing the shield to be positioned sufficiently away from the user's face. Furthermore, the lateral center of the mounting part is supported by the user's nose at the nose hook, allowing the shield support and the shield part connected to the lateral center of the mounting part to be accurately positioned relative to the user's nose and mouth, eliminating the need to make the shield larger than necessary. This effectively prevents the user's face from becoming too hot and stuffy.

In order to achieve the above-mentioned object, the splash prevention mouth shield of the present invention is characterized in that it comprises a transparent, plate-shaped shield portion that is positioned below the user's eyes and covers the nose and mouth, a shield support portion that supports the shield portion in a curved state so that it bulges forward when viewed from the front, a mounting portion that is attached to the user's face, and a connecting portion that connects the shield support portion and the mounting portion while keeping them spaced apart, and the left-right center of the mounting portion is provided with a nose hook that is attached to the tip of the user's nose closer to the bridge of the nose, and the left-right center of the shield support portion and the left-right center of the mounting portion are connected via the connecting portion, and the rear end of the left side of the mounting portion is provided with a left temple hook that is attached to the left temple of glasses, and the rear end of the right side of the mounting portion is provided with a right temple hook that is attached to the right temple of glasses .

In this configuration, the plate-shaped shield portion is supported by the shield support portion, and the lateral center portion of the shield support portion and the lateral center portion of the mounting portion are connected while being spaced apart from each other, allowing the shield portion to be positioned sufficiently away from the user's face. Furthermore, the lateral center portion of the mounting portion is supported by the user's nose at the nose piece portion, allowing the shield support portion and the shield portion connected to the lateral center portion of the mounting portion to be accurately positioned relative to the user's nose and mouth, eliminating the need to make the shield portion larger than necessary. This effectively prevents the user's face from becoming too hot and stuffy. Furthermore, in this configuration, the mounting portion can be easily and stably attached to the user's face by hooking the left and right temple hook portions onto the left and right temples of the eyeglasses worn by the user and hooking the nose piece portion onto the user's nose.

In order to achieve the above-mentioned object, the splash prevention mouth shield of the present invention is characterized in that it comprises a transparent, plate-shaped shield portion that is positioned below the user's eyes and covers the nose and mouth, a shield support portion that supports the shield portion in a curved state so that it bulges forward when viewed from the front, a mounting portion that is attached to the user's face, and a connecting portion that connects the shield support portion and the mounting portion while keeping them spaced apart, and a nose hook portion that is attached to the tip of the user's nose near the bridge of the nose is provided at the left-right central portion of the mounting portion, and the left-right central portion of the shield support portion and the left-right central portion of the mounting portion are connected via the connecting portion, and the left rear end of the mounting portion is selectively and detachably provided with either a left ear hook portion that is attached to the user's left ear or a left temple hook portion that is attached to the left temple of the glasses, and the right rear end of the mounting portion is selectively and detachably provided with either a right ear hook portion that is attached to the user's right ear or a right temple hook portion that is attached to the right temple of the glasses .

In this configuration, the plate-shaped shield portion is supported by the shield support portion, and the lateral center of the shield support portion and the lateral center of the mounting portion are connected while being spaced apart, allowing the shield portion to be positioned sufficiently away from the user's face. Furthermore, the lateral center of the mounting portion is supported by the user's nose at the nose hook portion, allowing the shield support portion and the shield portion connected to the lateral center of the mounting portion to be accurately positioned relative to the user's nose and mouth, eliminating the need to make the shield portion larger than necessary. This effectively prevents the user's face from becoming too hot and stuffy. Furthermore, in this configuration, the left and right ear hook portions allow the mounting portion to be easily and stably attached to the face of a user who does not wear eyeglasses, and the left and right temple hook portions allow the mounting portion to be easily and stably attached to the face of a user who wears eyeglasses.

In order to achieve the above object, the splash prevention mouth shield according to the present invention is characterized by comprising a transparent, plate-shaped shield part that covers the nose and mouth of a user, a shield support part that supports the shield part in a curved state so that it bulges forward when viewed from the front, a wearing part that is attached to the face of the user, and a connecting part that connects the shield support part and the wearing part in a state where they are spaced apart from each other, and the left-right center part of the shield support part and the left-right center part of the wearing part are connected via the connecting part, and the wearing part has a left ear hook part at the rear end on the left side that is hung over the left ear of the user, a right ear hook part at the rear end on the right side that is hung over the right ear of the user, and The glasses have a nose hook portion in the center to the right that is hung over the user's nose, and at the left rear end of the wearing portion, one of a left ear hook portion that is hung over the user's left ear and a left temple hook portion that is hung on the left temple of the glasses is selectively and detachably provided, and at the right rear end of the wearing portion, one of a right ear hook portion that is hung over the user's right ear and a right temple hook portion that is hung on the right temple of the glasses is selectively and detachably provided, and the portion between the left ear hook portion and the nose hook portion and the portion between the right ear hook portion and the nose hook portion each extend below the user's eyes and come into contact with the user's cheek.

In this configuration, the plate-shaped shield portion is supported by the shield support portion, and the lateral center of the shield support portion and the lateral center of the mounting portion are connected while being spaced apart, allowing the shield portion to be positioned sufficiently away from the user's face. Furthermore, the lateral center of the mounting portion is supported by the user's nose at the nose hook portion, allowing the shield support portion and the shield portion connected to the lateral center of the mounting portion to be accurately positioned relative to the user's nose and mouth, eliminating the need to make the shield portion larger than necessary. This effectively prevents the user's face from becoming too hot and stuffy. Furthermore, in this configuration, the left and right ear hook portions allow the mounting portion to be easily and stably attached to the face of a user who does not wear eyeglasses, and the left and right temple hook portions allow the mounting portion to be easily and stably attached to the face of a user who wears eyeglasses.

Another feature of the splash-proof mouth shield of the present invention is that the shield support portion is provided at the upper end of the shield portion, and the connecting portion has an arm portion extending in the front-to-rear direction, the front end of the arm portion being connected to the shield support portion, and the rear end of the arm portion being attached to the attachment portion so as to be rotatable in the vertical direction. In this configuration, by rotating the arm portion, the shield portion can be moved between a lowered position that covers the user's nose and mouth and an elevated position that is spaced upward from the user's nose and mouth. When the shield portion is moved to the elevated position, a large amount of space is secured in front of the user's mouth, allowing the user to eat and drink while wearing the splash-proof mouth shield. Because the shield support portion to which the front end of the arm portion is connected is provided at the upper end of the shield portion, the upper end of the shield portion does not come into contact with the user's face when the arm portion is rotated to move the shield portion to the elevated position.

Another feature of the splash-proof mouth shield of the present invention is that the rear end of the arm is provided with a protrusion that protrudes radially from the pivot axis, and the attachment part is provided with a stopper that is elastically deformed when the arm is rotated, so that when the arm is rotated upward, the protrusion hits the restored stopper, preventing the arm from rotating downward. In this configuration, the protrusion hits the stopper, preventing the arm from rotating downward, so the shield can be held in the raised position when the user is eating or drinking.

Another feature of the splash prevention mouth shield of the present invention is that the shield support part is provided with a plurality of protrusions, and the shield part is provided with a plurality of through-holes that are detachably fitted to the plurality of protrusions. In this configuration, the plurality of protrusions of the shield support part and the plurality of through-holes of the shield part are detachably fitted to each other, so that the shield part can be replaced with another shield part of a different size, and a damaged shield part can be replaced with a new shield part.

Another feature of the splash prevention mouth shield of the present invention is that a rod-shaped left shield temple is provided between the rear end of the left side of the attachment part and the center in the left-right direction, curved to bulge downward in a U-shape, and a rod-shaped right shield temple is provided between the rear end of the right side of the attachment part and the center in the left-right direction, curved to bulge downward in a U-shape.

In this configuration, the shield temples on both the left and right sides are curved downwards in a U-shape, preventing them from interfering with the temples of the glasses and providing a comfortable fit. Furthermore, the shield temples are designed so that the U-shaped portions open elastically, allowing them to be deformed to fit the size of the user's head or face, ensuring a stable fit.

Another feature of the splash-proof mouth shield of the present invention is that the distance between the lower part of the left shield temple and the lower part of the right shield temple is set narrower than the distance between the user's left and right cheeks.

With this configuration, the lower parts of the left and right shield temples can come into contact with the user's cheeks, making it difficult for the attachment part to move vertically. Therefore, if the connecting part, shield support part, and shield part as a whole are configured to be rotatable vertically, they can be easily rotated by the user's hand.

Another feature of the splash-proof mouth shield of the present invention is that the shield support portion, the mounting portion, and the connecting portion are made of a transparent or translucent material.

In this configuration, the shield support portion, attachment portion, and connecting portion are made of transparent or translucent materials, which, combined with the transparency of the shield portion, makes the entire splash prevention mouth shield less noticeable.

FIG. 1 is a perspective view showing a state in which the splash prevention mouth shield according to the first embodiment is used. FIG. 1 is a perspective view showing the configuration of a splash prevention mouth shield according to a first embodiment. FIG. 1 is a left side view showing the configuration of a splash prevention mouth shield according to a first embodiment. FIG. 4 is an exploded perspective view showing the mounting structure of the shield portion to the shield support portion. FIG. 2 is an exploded perspective view showing the attachment structure of the connecting portion to the mounting portion. 10A and 10B are diagrams showing the state of the left arm portion, where (A) is a diagram showing the state when the shield portion is in the lowered position, (B) is a diagram showing the state when the shield portion is in the middle of being moved between the lowered position and the raised position, and (C) is a diagram showing the state when the shield portion is in the raised position. FIG. 10 is a perspective view showing the use state of the splash prevention mouth shield according to the second embodiment. 10A and 10B are diagrams showing the configuration of the left temple hook portion, in which FIG. 10A is a diagram showing the left side surface as viewed from slightly rearward, and FIG. 10B is a diagram showing the right side surface as viewed from slightly rearward.

Below, an embodiment of the splash prevention mouth shield of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view showing the splash prevention mouth shield 10 according to the first embodiment in use. FIG. 2 is a perspective view showing the configuration of the splash prevention mouth shield 10. FIG. 3 is a left side view showing the configuration of the splash prevention mouth shield 10. FIG. 4 is an exploded perspective view showing the mounting structure of the shield part 12 relative to the shield support part 14. FIG. 5 is an exploded perspective view showing the mounting structure of the connecting part 18 relative to the mounting part 16. Note that the directions of "front, back, left, right, up, and down" used in the following description are directions as seen from the user M, and correspond to the directions indicated by arrows in FIGS. 1, 2, 3, and 4.

The droplet prevention mouth shield 10 shown in Figure 1 is a sanitary device used to prevent droplet infection of viruses, and includes a shield part 12 that covers the nose and mouth of the user M, a shield support part 14 that supports the shield part 12, a mounting part 16 that is attached to the face F of the user M, and a connecting part 18 that connects the shield support part 14 and the mounting part 16.

The splash prevention mouth shield 10 of this embodiment is configured to be able to selectively assume either a first state shown by solid lines in Figure 1 or a second state shown partially by dashed two-dot lines in Figure 1. The first state is the state during normal use, in which the shield portion 12 is positioned to cover the nose and mouth of the user M. The second state is the state when the shield portion 12 is not needed, such as when eating or drinking, in which the shield portion 12 is positioned at a position above the position covering the nose and mouth of the user M. The position of the shield portion 12 (solid lines) in the first state is the "lowered position P1," and the position of the shield portion 12 (dashed two-dot lines) in the second state is the "raised position P2."

As shown in Figure 2, the shield part 12 is a transparent, plate-like member made of synthetic resin such as polyethylene terephthalate (PET), and is formed in a roughly rectangular shape with two rounded corners on the bottom. The size of the shield part 12 is determined so that it can completely cover the nose and mouth when placed in front of the face F (Figure 1).

Explaining in more detail, the vertical length of the shield part 12 is set to be slightly longer than the length from the root of the nose to the bottom of the chin on the face F (Figure 1), and the left-right length of the upper end 12a of the shield part 12 is set to be slightly longer than the left-right length of the part of the face F (Figure 1) corresponding to the upper end 12a. Furthermore, the overall left-right length (width) of the shield part 12 is set to become gradually shorter (narrower) from the upper end 12a toward the lower end 12b.

As shown in FIG. 2, the upper edge 12c of the shield portion 12 extends substantially horizontally, and the lower edge 12d of the shield portion 12 is curved so as to bulge downward. The boundaries between the lower edge 12d of the shield portion 12 and the left and right side edges 12e, 12f are formed in a rectangular shape with rounded corners, i.e., smoothly curved. The shield portion 12 as a separate component is formed in a flat plate shape, and when attached to the shield support portion 14, it is elastically bent so as to bulge forward in a front view.

As shown in FIG. 4, the upper end 12a of the shield portion 12 has a plurality of (five in this embodiment) through-holes 22 spaced apart in the left-right direction, into which a plurality of (five in this embodiment) protrusions 20, described below, can be detachably fitted. The thickness of the shield portion 12 is not particularly limited, but is set to 0.25 mm in this embodiment.

As shown in FIG. 4 , the shield support portion 14 is a transparent or translucent rod-shaped member made of ABS resin or the like, and is curved so that it bulges forward when viewed from the front. The vertical length (height) of the shield support portion 14 is set to be longer than the length (thickness) in the direction perpendicular to the vertical direction. The inner surface (i.e., rear surface) 14a of the shield support portion 14 is provided with a plurality of (five in this embodiment) protrusions 20 spaced apart in the longitudinal direction (i.e., left-right direction) and removably engageable with a plurality of (five in this embodiment) through holes 22 in the shield portion 12. The shield portion 12 is attached to the inner surface (i.e., rear surface) 14a of the shield support portion 14 by engaging each protrusion 20 of the shield support portion 14 with each through hole 22 of the shield portion 12.

As shown in FIG. 4 , the protrusion 20 is mushroom-shaped and includes a head 20a and a shaft 20b. The diameter of a first circumscribing circle circumscribing the head 20a is slightly larger than the inner diameter of the through hole 22, and the diameter of a second circumscribing circle circumscribing the shaft 20b is smaller than the diameter of the first circumscribing circle. When attaching the shield part 12 to the inner surface (i.e., rear surface) 14a of the shield support part 14, each protrusion 20 of the shield support part 14 is inserted into and engaged with each through hole 22 of the shield part 12. When the head 20a of the protrusion 20 passes through the through hole 22, the diameter of the through hole 22 elastically expands. Therefore, after the head 20a passes through the through hole 22, the inner diameter of the restored through hole 22 becomes smaller than the diameter of the first circumscribing circle, making it difficult for the protrusion 20 to come out of the through hole 22.

As shown in FIG. 4, the inner surface (i.e., rear surface) 14a of the shield support part 14 is curved so as to bulge forward when viewed from the front, and the flat shield part 12 is attached to the shield support part 14 so as to fit along this inner surface (i.e., rear surface) 14a. Therefore, the shield support part 14 supports the shield part 12 in a curved state so as to bulge forward when viewed from the front.

As shown in FIG. 2, the mounting unit 16 has a nose hook 24 that is placed over the nose of user M (FIG. 1), a left ear hook 26 that is placed over user M's left ear, and a right ear hook 28 that is placed over user M's right ear. Also, as shown in FIG. 4, the mounting unit 16 has a left attachment portion 32 to which the left arm portion 30 of the connecting portion 18 is rotatably attached, and a right attachment portion 36 to which the right arm portion 34 of the connecting portion 18 is rotatably attached. Furthermore, as shown in FIG. 2, the mounting unit 16 has a left shield temple 38 that extends from the left ear hook 26 toward the nose hook 24, and a right shield temple 40 that extends from the right ear hook 28 toward the nose hook 24.

Of the above-mentioned components that make up the mounting section 16, the nose piece 24, left mounting section 32, right mounting section 36, left shield temple 38, and right shield temple 40 are made of a transparent or translucent material such as ABS resin. Each component of the mounting section 16 is described in detail below.

As shown in Figure 4, the nose hook 24 is an inverted U-shaped section that is positioned to straddle the nose of the user M (Figure 1). The lower end of the nose hook 24, i.e., the left and right portions corresponding to the open ends of the inverted U, are provided with plate-shaped nose pads 42, 44 with smooth surfaces (not shown) that come into contact with the left and right nostrils (portions on both sides of the bridge of the nose) of the user M (Figure 1).

As shown in Figure 2, the left ear hook 26 is hooked onto the left ear of the user M in the same manner as the temple of ordinary eyeglasses, and is formed in a rod shape from an elastic material such as silicone. As shown in Figure 3, the front end of the left ear hook 26 is provided with a cylindrical mating hole 48 into which the mating protrusion 46 provided at the rear end of the left shield temple 38 is mated.

As shown in FIG. 2, the right ear hook 28 is hooked onto the right ear of the user M in the same manner as the temple of ordinary eyeglasses, and is formed in a rod shape from an elastic material such as silicone. Although not shown, the front end of the right ear hook 28 has a cylindrical mating hole into which the mating protrusion provided at the rear end of the right shield temple 40 is mated. Note that the right ear hook 28 in this embodiment is configured symmetrically with respect to the left ear hook 26.

As shown in FIG. 5, the left-side mounting portion 32 rotatably supports the left-side arm portion 30 on the upper surface of the left nose pad 42, and has two opposing walls 50a, 50b that sandwich the left-side arm portion 30 from the left and right, and two protruding shafts 52a, 52b that are provided on the opposing inner surfaces of the two walls 50a, 50b. The left-side mounting portion 32 also has a plate-shaped stopper portion 54 that connects the rear ends of the two walls 50a, 50b and prevents the left-side arm portion 30 from rotating.

The right-side mounting portion 36 shown in Figure 4 is a portion that rotatably supports the right-side arm portion 34 on the upper surface of the right-side nose pad 44, and is configured symmetrically with respect to the left-side mounting portion 32.

As shown in Figure 2, the left shield temple 38 is a rod-shaped portion connecting the nose hook 24 and the left ear hook 26, and is curved downward to form a U-shape. In this case, the U-shaped portion is formed to expand elastically. The front end of the left shield temple 38 is connected to the left nose pad 42 of the nose hook 24, and the rear end of the left shield temple 38 is provided with a connection portion 56 to which the left ear hook 26 is detachably connected.

As shown in Figure 3, the connection part 56 has a rod-shaped main body 56a that is continuous with the left ear hook part 26 without any steps, and the rear end of the main body 56a is provided with a mating projection 46 that is inserted into and mated with a mating hole 48 provided in the left ear hook part 26. The mating projection 46 is formed in a cylindrical shape with an outer diameter slightly smaller than the inner diameter of the mating hole 48 provided in the left ear hook part 26, and the outer surface of the mating projection 46 is provided with a hemispherical protrusion 46a to prevent it from coming loose.

As shown in Figure 2, the right shield temple 40 is a rod-shaped part that connects the nose piece 24 and the right ear piece 28, and is configured symmetrically with respect to the left shield temple 38.

The distance between the bottom of the left shield temple 38 and the bottom of the right shield temple 40 shown in Figure 2 is set to be narrower than the distance between the left and right cheeks of user M shown in Figure 1. Therefore, when user M wears the splash prevention mouth shield 10 on his or her face F, these lower parts come into contact with user M's cheeks.

Focusing on the position of each part of the mounting part 16, as shown in FIG. 2, the nose hook 24 is located in the left-right center of the mounting part 16, the left ear hook 26 is located at the rear end of the left side of the mounting part 16, and the right ear hook 28 is located at the rear end of the right side of the mounting part 16. Furthermore, as shown in FIG. 4, the left attachment part 32 and the right attachment part 36 are located in the left-right center of the mounting part 16, on either side of the nose hook 24. As shown in FIG. 2, the left shield temple 38 is located between the rear end of the left side of the mounting part 16 and the left-right center, and the right shield temple 40 is located between the rear end of the right side of the mounting part 16 and the left-right center.

As shown in Figure 2, the connecting portion 18 connects the left-right central portions of the shield support portion 14 and the mounting portion 16 when they are spaced apart, and has a transparent or translucent, rod-shaped left arm portion 30 and right arm portion 34 made of ABS resin or the like. These arms 30, 34 are spaced apart in the left-right direction and extend in the front-to-rear direction.

As shown in FIG. 4 , the front end of the left arm 30 is connected to the shield support part 14, and the rear end of the left arm 30 is formed with a hole 60 into which the shafts 52a, 52b of the left mounting part 32 provided on the mounting part 16 are fitted. The rear end of the left arm 30 is also provided with a protrusion 62 that protrudes radially from the shafts 52a, 52b, which serve as the "rotation axis." When a circumscribing circle is imagined that circumscribes the protrusion 62 around the rotation center of the left arm 30, a portion of this circumscribing circle intersects with the inner surface of the stopper part 54. The right arm 34 is configured symmetrically with respect to the left arm 30.

Figure 6 shows the state of the left arm section 30 of the connecting section 18, with Figure 6(A) showing the state when the shield section 12 is in the lowered position P1, Figure 6(B) showing the state when the shield section 12 is in the middle of being moved between the lowered position P1 and the raised position P2, and Figure 6(C) showing the state when the shield section 12 is in the raised position P2. Note that the state of the right arm section 34 shown in Figure 2 is bilaterally symmetrical to the state of the left arm section 30.

As shown in Figure 6 (A), when the shield part 12 is in the lowered position P1, the protrusion 62 of the left arm part 30 is positioned above the horizontal line Q passing through the center of rotation. When a force acts on the shield part 12 in this state to rotate it upward, the protrusion 62 hits the stopper part 54, thereby preventing the shield part 12 from rotating. Therefore, it is unlikely that the shield part 12 will be lifted by natural forces such as wind force.

When the shield part 12 is not needed, such as when eating or drinking, the user M lifts the shield part 12 with their hand and rotates it to the raised position P2. As shown in Figure 6 (B), during this rotation process, the protrusion 62 is pressed against the stopper part 54, but the stopper part 54 is elastically deformed outward, allowing the shield part 12 to rotate. During this rotation process, a reaction force from the stopper part 54 is transmitted to the user M's hand, and the user M can sense the fluctuations in this reaction force to know the state of the shield part 12.

As shown in Figure 6 (C), when the shield part 12 is in the raised position P2, the protrusion 62 of the left arm part 30 is positioned below the horizontal line Q passing through the center of rotation. When a force acts to rotate the shield part 12 downward in this state, the protrusion 62 hits the stopper part 54, thereby preventing the shield part 12 from rotating. Therefore, it is unlikely that the shield part 12 will drop due to vibration or the like.

(Effects of the first embodiment)
According to this embodiment, the above configuration can achieve the following effects. That is, as shown in FIG. 2 , the plate-shaped shield portion 12 is supported by the shield support portion 14, and the left-right center portion of the shield support portion 14 and the left-right center portion of the attachment portion 16 are connected while being spaced apart from each other, so that the shield portion 12 can be positioned sufficiently away from the face F ( FIG. 1 ) of the user M. Furthermore, the left-right center portion of the attachment portion 16 is supported by the nose of the user M at the nose hook portion 24. Therefore, the shield support portion 14 and the shield portion 12 connected to this center portion can be accurately positioned with respect to the nose and mouth of the user M, and there is no need to form the shield portion 12 larger than necessary. Therefore, it is possible to effectively prevent the face F of the user M from becoming hot and stuffy.

As shown in Figure 6, by rotating the arm portion 30 (34), the shield portion 12 can be moved between a lowered position P1, which covers the nose and mouth of the user M, and an elevated position P2, which moves the shield portion 12 upward away from the nose and mouth of the user M. When the shield portion 12 is moved to the elevated position P2, a large space is secured in front of the user M's mouth, allowing the user M to eat and drink while wearing the splash prevention mouth shield 10.

The shield support part 14, to which the front end of the arm part 30 (34) is connected, is provided at the upper end part 12a of the shield part 12. Therefore, when the arm part 30 (34) is rotated to move the shield part 12 to the raised position P2 (Figure 6(C)), the upper end part 12a of the shield part 12 does not come into contact with the face F (Figure 1) of the user M.

As shown in Figure 6 (C), when the shield portion 12 is in the raised position P2, the protrusion 62 hits the stopper portion 54, preventing the arm portion 30 (34) from rotating downward. Therefore, when the user M is eating or drinking, the shield portion 12 can be held in the raised position P2.

As shown in Figure 4, the multiple protrusions 20 on the shield support portion 14 and the multiple through holes 22 on the shield portion 12 are detachably engaged, allowing the shield portion 12 to be replaced with another shield portion 12 of a different size, and allowing a damaged shield portion 12 to be replaced with a new shield portion 12.

By hooking the left and right ear loops 26, 28 shown in Figure 2 over the left and right ears of the user M and hooking the nose loop 24 shown in Figure 2 over the nose of the user M, the attachment part 16 can be easily and stably attached to the face F of the user M.

As shown in Figure 2, the nose pads 24 are supported over a wide area of the nostrils on both sides, ensuring stable support even when the shield part 12 is large. Furthermore, even when wearing the splash guard mouth shield 10, the nose pads of eyeglasses can be placed against the bridge of the nose, allowing the splash guard mouth shield 10 to be used in conjunction with eyeglasses.

As shown in FIG. 2, the left and right shield temples 38, 40 are curved downward in a U-shape, preventing interference between the shield temples 38, 40 and the temples of the eyeglasses, resulting in a comfortable fit. Furthermore, the U-shaped portions of the left and right shield temples 38, 40 open elastically to deform to fit the size of the user M's head or face. This allows them to accommodate a variety of head or face sizes, and the nose loop 24 and ear loops 26, 28 provide a stable fit. Furthermore, because the lower portions of the left and right shield temples 38, 40 can be brought into contact with the user M's cheeks, the mounting portion 16 is less likely to move vertically. This allows the user M to easily rotate the entire connecting portion 18, shield support portion 14, and shield portion 12 with their hands. It goes without saying that the lower portions of the left and right shield temples 38, 40 may be spaced apart from the user M's cheeks to avoid contact. Additionally, the left and right shield temples 38, 40 may be constructed of a rigid body with a U-shaped portion that does not elastically deform.

The cylindrical fitting protrusions 46 (Fig. 3) of the left and right shield temples 38 and 40 are fitted into the cylindrical fitting holes 48 (Fig. 3) of the left and right ear hooks 26 and 28 shown in Fig. 2, respectively, so their orientation can be easily adjusted by rotating the left and right ear hooks 26 and 28.

The shield support portion 14, mounting portion 16, and connecting portion 18 shown in Figure 2 are made of transparent or translucent materials, which, combined with the transparency of the shield portion 12, makes the entire splash prevention mouth shield 10 less noticeable.

(Modification)
It should be noted that the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the scope of the present invention. For example, in the above-described embodiment, the shield support portion 14, the mounting portion 16, and the connecting portion 18 are formed of a transparent or translucent material, but at least one of these may be formed of an opaque material.

As shown in Figure 6(B), in the above embodiment, the stopper portion 54 for preventing the shield portion 12 from rotating is formed in a plate shape, but the stopper portion 54 may also be formed in a rod shape or a protrusion shape.

As shown in Figure 2, in the above embodiment, the shield temples 38, 40 on both the left and right sides are curved downward to form a U-shape, but they may also be formed in a straight line extending in the front-to-back direction, similar to the temples of ordinary eyeglasses. Furthermore, the distance between the lower parts of the shield temples 38, 40 may be set to be the same as the distance between the left and right cheeks of the user M (Figure 1), or may be set to be wider than that.

As shown in FIG. 2, in the above embodiment, the left arm portion 30 and the right arm portion 34 of the connecting portion 18 are formed in a rod shape, but they may also be formed in a plate shape. Furthermore, one of the left arm portion 30 and the right arm portion 34 may be omitted, or at least one other arm portion may be added.

As shown in Figure 2, in the above embodiment, the left ear hook 26 and the right ear hook 28 are used as means for supporting the attachment portion 16 on the left and right ears of the user M (Figure 1). However, these may be replaced with circular left and right elastic cords (not shown) that are looped around the left and right ears. They may also be replaced with bands or the like that are looped around the back of the head of the user M (Figure 1).

Second Embodiment
Fig. 7 is a perspective view showing a splash prevention mouth shield 64 according to a second embodiment in use. In the splash prevention mouth shield 10 according to the first embodiment shown in Fig. 2, the left ear hook 26 and the right ear hook 28 are placed over the left and right ears of the user M (Fig. 1), causing interference with the temples of the eyeglasses. To solve this problem, the splash prevention mouth shield 64 shown in Fig. 7 uses a left temple hook 66 instead of the left ear hook 26, and a right temple hook (not shown) instead of the right ear hook 26.

Figure 8 shows the configuration of the left temple hook 66, with Figure 8(A) showing the left side of the left temple hook 66 as seen from slightly behind, and Figure 8(B) showing the right side of the left temple hook 66 as seen from slightly behind. Although not shown, the right temple hook 66 is configured symmetrically to the left temple hook 66.

The left temple hook 66 shown in Figures 8(A) and (B) is the part that hooks onto the left temple 68a of the eyeglasses 68 shown in Figure 7, and is made of an elastic material such as silicone. The left temple hook 66 has an outer wall 70 that is arranged along the outer surface of the left temple 68a, an inner wall 72 that is arranged along the inner surface of the left temple 68a, and an upper wall 74 that connects the upper edge of the outer wall 70 and the upper edge of the inner wall 72.

The vertical length of the rear end 70a of the outer wall 70 is set to be sufficiently longer than the vertical length of the rear end 72a of the inner wall 72. A cylindrical connecting portion 76 that connects to the connecting portion 56 of the left shield temple 38 is provided at the rear end 70a of the outer wall 70, located below the rear end 72a of the inner wall 72. The front end of the connecting portion 76 is provided with a cylindrical mating hole 78 that fits into the mating protrusion 46 provided at the rear end of the left shield temple 38.

As shown in Figure 8 (B), a space S2 is defined between the rear end 72a of the inner wall 72 and the connecting portion 76, and is connected to the space S1 below the upper wall 74. When the left temple hook 66 is hung on the left temple 68a (Figure 7), the left temple 68a is passed through the space S2 and accommodated in the space S1.

As shown in Figure 7, with the splash prevention mouth shield 64 according to the second embodiment, the left temple hook portion 66 and the right temple hook portion (not shown) are hooked onto the left temple 68a and the right temple (not shown) of the eyeglasses 68, respectively, and the nose hook portion 24 is hooked onto the nose of the user M, thereby allowing the attachment portion 16 to be easily and stably attached to the face F of the user M.

Furthermore, by preparing the left and right temple hooks 66 and 28 (not shown) and the left and right ear hooks 26 and 28 in advance, these can be selectively attached to the rear ends of the shield temples 38, 40 on both the left and right sides. In other words, by using the left and right ear hooks 26 and 28, the mounting unit 16 can be easily and stably attached to the face F of a user M who does not wear eyeglasses, and by using the left and right temple hooks 66 and 28 (not shown), the mounting unit 16 can be easily and stably attached to the face F of a user M who wears eyeglasses 68 (Figure 7).

M...user, F...face, P1...lowered position, P2...raised position, 10, 64...splash prevention mouth shield, 12...shield portion, 14...shield support portion, 16...mounting portion, 18...connecting portion, 20...protrusion, 22...through hole, 24...nose hook portion, 26...left ear hook portion, 28...right ear hook portion, 30...left arm portion, 32...left mounting portion, 34...right arm portion, 36...right mounting portion, 38...left shield temple, 40...right shield temple, 42...left nose pad portion, 44...right nose pad portion, 46a...protrusion, 46...fitting protrusion portion, 48...fitting hole, 54...stopper portion, 56...connecting portion, 62...protrusion, 66...left temple hook portion, 76...connecting portion, 78...fitting hole.

Claims (12)

A transparent, plate-shaped shield that covers the user's nose and mouth;
a shield support portion that supports the shield portion in a curved state so as to bulge forward when viewed from the front;
a wearing part to be worn on the face of the user;
a connecting portion that connects the shield support portion and the mounting portion while they are spaced apart from each other,
a nose hook portion that can be placed around the user's nose is provided at the center of the attachment portion in the left-right direction,
a left-right center portion of the shield support portion and a left-right center portion of the mounting portion are connected via the connecting portion,
the connecting portion is connected to one end and the other end of the nose piece portion located on the left and right sides of the bridge of the nose of the user ,
A left temple hook portion is provided at the left rear end of the mounting portion to be hooked onto the left temple of the eyeglasses,
The splash prevention mouth shield has a right temple hook portion at the rear end on the right side of the attachment portion that can be hooked onto the right temple of glasses . A transparent, plate-shaped shield that covers the user's nose and mouth;
a shield support portion that supports the shield portion in a curved state so as to bulge forward when viewed from the front;
a wearing part to be worn on the face of the user;
a connecting portion that connects the shield support portion and the mounting portion while they are spaced apart from each other,
a nose hook portion that can be placed around the nose of the user is provided at the center of the attachment portion in the left-right direction,
a left-right center portion of the shield support portion and a left-right center portion of the mounting portion are connected via the connecting portion,
the connecting portion is connected to one end and the other end of the nose piece portion located on the left and right sides of the bridge of the nose of the user ,
a left ear hook portion to be hooked on the left ear of the user or a left temple hook portion to be hooked on the left temple of the eyeglasses is selectively and detachably provided on the left rear end portion of the wearing portion;
The splash-proof mouth shield has a right rear end portion on the right side of the attachment portion that is selectively and detachably provided with either a right ear hook portion that can be hung on the user's right ear or a right temple hook portion that can be hung on the right temple of the eyeglasses . A transparent, plate-shaped shield that covers the user's nose and mouth;
a shield support portion that supports the shield portion in a curved state so as to bulge forward when viewed from the front;
a wearing part to be worn on the face of the user;
a connecting portion that connects the shield support portion and the mounting portion while they are spaced apart from each other,
a nose hook portion that can be placed around the nose of the user is provided at the center of the attachment portion in the left-right direction,
a left-right center portion of the shield support portion and a left-right center portion of the mounting portion are connected via the connecting portion,
a left temple hook portion is provided at a rear end portion on the left side of the wearing portion, the left temple hook portion being hooked onto a portion of the left temple of the eyeglasses that is to be hung on the user's ear;
The splash-proof mouth shield has a right temple hook portion at the rear right end of the attachment portion, which is hooked onto the part of the right temple of the eyeglasses that is hooked onto the user's ear. A transparent, plate-shaped shield portion that is positioned below the user's eyes and covers the nose and mouth;
a shield support portion that supports the shield portion in a curved state so as to bulge forward when viewed from the front;
a wearing part to be worn on the face of the user;
a connecting portion that connects the shield support portion and the mounting portion while they are spaced apart from each other,
a nose hook portion that is hooked on the tip side of the user's nose relative to the root of the nose is provided at the center portion of the attachment portion in the left-right direction,
a left-right center portion of the shield support portion and a left-right center portion of the mounting portion are connected via the connecting portion,
A left temple hook portion is provided at the left rear end of the mounting portion to be hooked onto the left temple of the eyeglasses,
The splash prevention mouth shield has a right temple hook portion at the rear end on the right side of the attachment portion that can be hooked onto the right temple of glasses . A transparent, plate-shaped shield portion that is positioned below the user's eyes and covers the nose and mouth;
a shield support portion that supports the shield portion in a curved state so as to bulge forward when viewed from the front;
a wearing part to be worn on the face of the user;
a connecting portion that connects the shield support portion and the mounting portion while they are spaced apart from each other,
a nose hook portion that is hooked on the tip side of the user's nose relative to the root of the nose is provided at the center portion of the attachment portion in the left-right direction,
a left-right center portion of the shield support portion and a left-right center portion of the mounting portion are connected via the connecting portion,
a left ear hook portion to be hooked on the left ear of the user or a left temple hook portion to be hooked on the left temple of the eyeglasses is selectively and detachably provided on the left rear end portion of the wearing portion;
The splash-proof mouth shield has a right rear end portion on the right side of the attachment portion that is selectively and detachably provided with either a right ear hook portion that can be hung on the user's right ear or a right temple hook portion that can be hung on the right temple of the eyeglasses . A transparent, plate-shaped shield that covers the user's nose and mouth;
a shield support portion that supports the shield portion in a curved state so as to bulge forward when viewed from the front;
a wearing part to be worn on the face of the user;
a connecting portion that connects the shield support portion and the mounting portion while they are spaced apart from each other,
a left-right center portion of the shield support portion and a left-right center portion of the mounting portion are connected via the connecting portion,
The mounting portion is
a left ear hook portion at a rear end portion on the left side that is hooked on the left ear of the user;
a right ear hook portion at a rear end portion on the right side that is hooked on the right ear of the user;
a nose hook portion at the center in the left-right direction to be hung on the nose of the user;
a left ear hook portion to be hooked on the left ear of the user or a left temple hook portion to be hooked on the left temple of the eyeglasses is selectively and detachably provided on the left rear end portion of the wearing portion;
a right ear hook portion adapted to be hooked on the right ear of the user and a right temple hook portion adapted to be hooked on the right temple of the eyeglasses are selectively and detachably provided on a right rear end portion of the wearing portion;
A splash-proof mouth shield in which the portion between the left ear hook portion and the nose hook portion and the portion between the right ear hook portion and the nose hook portion each extend below the user's eyes and contact the user's cheek. the shield support portion is provided at an upper end portion of the shield portion,
The connecting portion has an arm portion extending in the front-rear direction,
a front end of the arm portion is connected to the shield support portion,
The splash prevention mouth shield according to claim 1 , wherein a rear end of the arm portion is attached to the mounting portion so as to be rotatable in the up-down direction. a protrusion that protrudes in a radial direction of the rotation shaft is provided at a rear end of the arm;
the mounting portion is provided with a stopper portion against which the protrusion portion is pressed and elastically deformed when the arm portion is rotated,
8. The splash-proof mouth shield according to claim 7 , wherein when the arm portion is rotated upward, the protrusion abuts against the restored stopper portion, thereby preventing the arm portion from rotating downward. The shield support portion is provided with a plurality of protrusions,
9. The splash-proof mouth shield according to claim 1, wherein the shield portion is provided with a plurality of through holes that are detachably fitted to the plurality of protrusions, respectively. Between the left rear end of the mounting part and the center in the left-right direction, a rod-shaped left shield temple is provided, which is curved downward in a U-shape and bulges outward.
A splash-proof mouth shield as described in any one of claims 1 to 9 , wherein a rod-shaped right shield temple is curved downward and U-shaped between the rear end on the right side of the attachment part and the center in the left-right direction. 11. The splash prevention mouth shield according to claim 10 , wherein the distance between the lower part of the left shield temple and the lower part of the right shield temple is set to be narrower than the distance between the left and right cheeks of the user. The splash prevention mouth shield according to claim 1 , wherein the shield support portion, the attachment portion, and the connecting portion are made of a transparent or translucent material.