JP2021179037A - Lower part open type face shield - Google Patents

Abstract

To provide a lower part open type face shield which facilitates attachment and removal.SOLUTION: The following configuration is applied to a lower part open type face shield 10 which covers the nasal cavity and oral cavity of the face in a state in which a lower part is open. A shield member 11 is pasted to a holding member 12 made from foamed urethane which applies elastic force so as to sandwich the face around the cheek bone from both sides. The holding member 12 is provided with a projection part 13 to fill a gap between the cheek bone and the shield member 11. A recessed part 14 which serves as a nose pad part is formed between the projection parts 13. The face shield 10 is held on the face by the elastic force of the holding member 12 and the recessed part 14 which serves as the nose pad part. By the above, it is possible to provide the lower part open type face shield 10 which facilitates attachment to and removal from the front side of the face.SELECTED DRAWING: Figure 2

Description

The present invention relates to a lower open face shield that covers the nasal cavity and oral cavity of the face with the lower part open.

Masks are used to prevent infection by viruses and others. In the case of masks, there is a problem that when the mask is used with the glasses on, the glasses become cloudy due to exhalation, and a technique for preventing this has been proposed. For example, Patent Document 1 proposes a technique of attaching a cushioning material made of foam to both side portions of the nose of a mask. Patent Document 2 proposes a technique provided with an adhesive portion for bringing the upper edge of the mask into close contact with the face. Patent Document 3 proposes a technique of attaching an aluminum plate to the upper edge of a mask to maintain a shape that is in close contact with the nose.

On the other hand, as a means for preventing infection, a lower open face shield that covers the nasal cavity and oral cavity of the face with the lower part open is also used.
FIG. 7 is an explanatory view showing a lower open type face shield as a conventional technique. This face shield consists of a headband worn on the head and a shield made of transparent resin fixed to the headband. Although the shield is sized and shaped to cover the nasal cavity and oral cavity, the shield itself does not adhere to the face, so it has the advantage that it can be worn without being stuffy.
In the lower open type face shield, since the exhaled air flows out from the open portion, the spectacles tend to be less likely to be fogged than the mask, but the fog of the spectacles is still one of the problems.

Japanese Unexamined Patent Publication No. 2008-148984 Japanese Unexamined Patent Publication No. 2006-263172 Japanese Unexamined Patent Publication No. 2006-305279

In order to prevent infection with a mask and a face shield with an open bottom, it is necessary to pay close attention to its attachment and detachment. Touching various parts of the body or the inner surface of the mask or shield during attachment / detachment may impair the effectiveness of infection prevention.
Since the conventional face shield with an open bottom uses a headband, there is a possibility that the head may come into contact with the head when it is attached or detached. In addition, the user tends to grasp the lower part of the shield by hand in order to correct the position of the shield, and at this time, the inner surface of the shield may be touched. Therefore, there is a risk of infection due to the operation at the time of attachment / detachment.
In view of the above problems, it is an object of the present invention to provide a bottom open type face shield that can be easily attached and detached.

The present invention is a lower open face shield that covers the nasal cavity and oral cavity of the face with the lower part open.
A shield member for covering the nasal cavity and the oral cavity, and
The shield is attached to the shield member and has a non-connected shape on the back of the head. It can be configured as a lower open face shield provided with a holding member for holding the member in a state of being separated from the nasal cavity and the front surface of the oral cavity by a predetermined distance.

According to the present invention, the lower open face shield can be held on the face by the elastic force of the holding member. Since the holding member has a non-connected shape on the back of the head, such as a U-shaped plane shape, the lower open face shield can be attached and detached from the front of the face. That is, the user can grasp and attach / detach the outer surface of the shield member so as to grasp it. Therefore, according to the present invention, it is possible to facilitate desorption and suppress the risk of infection at that time.
Further, since the present invention holds the lower open face shield around the cheekbone, there is an advantage that it can be used without any trouble even while wearing glasses.

In the present invention, the holding member may sandwich the face or may sandwich the glasses. Further, the portion in contact with the face or the spectacles and the portion to which the elastic force is applied may be the same member or different members. For example, a pad attached to the shield may be provided as a portion in contact with the face or the like, and an elastic body such as a metal spring or rubber may be used as a portion to which an elastic force is applied, in addition to the pad.
The length of the holding member may be, for example, up to the front of the ear. This makes it even easier to attach and detach. In this aspect, there is also an advantage that it is possible to wear the lower open type Fies shield while wearing glasses.
Further, the length may be such that it can be hung on the ear like glasses. By doing this, not only the elastic force but also the holding can be more stable by hanging it on the ear. At the same time, since the elastic force for holding can be reduced, it is possible to reduce the feeling of oppression, discomfort, or pain when worn for a long time.
Further, the holding member may be extended to the rear of the ear while sandwiching the outside of the ear or bypassing the outside of the ear. By doing so, it becomes possible to stably hold the product for a long period of time. In this aspect, there is also an advantage that it is possible to wear the lower open type Fies shield while wearing glasses in order to avoid putting it on the ear.

The shield member and the holding member may be partially bonded or may be bonded to the entire holding member.
In the present invention, the shield member can have various shapes as long as it covers the nasal cavity and the oral cavity. The shield member may cover the lower half of the face including the nasal cavity and the oral cavity, or may cover the entire face including the eyes. In order to enhance the effect of infection prevention, it is preferable to have a shape that can cover the nasal cavity and the oral cavity as far as possible.
Further, various materials such as resin, metal, and paper can be used for the shield member. It does not necessarily have to be transparent. Further, it is preferable that the rigidity is such that the shape can be maintained at least while covering the nasal cavity and the oral cavity.

In the present invention
Further, a nose pad portion for supporting the shield member with the nose portion so as not to fall may be provided.

By doing so, it becomes possible to stably attach the lower open type face shield. The nose pad may be a member separate from the holding member, for example, the nose pad of eyeglasses. The nose pad may be attached to the shield member or the holding member.

In the present invention
The holding member has a spectacle pad that sandwiches the strings of spectacles attached to the face from the outside.
The spectacle pad may be a groove for holding the strings of the spectacles and may have a tapered groove whose width becomes narrower in the depth direction.

According to the above aspect, the tapered groove formed in the spectacle pad can stably hold the strings of the spectacles. Further, since the width of the groove is changed by the tapered groove, it is possible to correspond to strings of various thicknesses.
The spectacle pad can be formed in various lengths, but it is preferable that the spectacle pad is sufficiently long in the longitudinal direction, that is, in the direction along the chord. By doing so, it is possible to suppress the vertical rattling of the shield member.

In the present invention, even if the eyeglass pad is not provided,
The holding member and the nose pad may be integrated.

By doing so, the structure of the holding member and the nose pad can be simplified. In the above aspect, for example, a recess that touches the nose may be provided in a part of the holding member. Further, a portion corresponding to a pad for a nose pad may be provided on a part of the holding member.

In the present invention
The holding member may be in close contact with the inner surface of the shield member in a range wider than the oral width of the face.

By doing so, the holding member can form a wall that obstructs the flow of exhaled air along the inner surface of the shield member, and it is possible to prevent the exhaled air from flowing above the holding member. Therefore, even if the spectacles are worn, it is possible to prevent the spectacles from becoming cloudy due to exhalation. The holding member preferably has a sufficiently large dimension in the normal direction of the shield member so that such an effect can be sufficiently obtained.

In the above aspect,
The holding member may further have a shape that fits the face when worn.

By doing so, the wall formed by the holding member can close the gap between the inner surface of the shield member and the face, so that the flow of exhaled air to the upper part can be further prevented.

In the embodiment in which the holding member is a wall that excludes the flow of exhaled breath,
The lower surface of the holding member may be a continuous groove from the center to the end of the shield member.

By doing so, the groove on the lower surface of the holding member acts to receive the exhaled air, and it becomes possible to further prevent the exhaled air from leaking from the gap between the holding member and the face. Further, since this groove is continuously formed up to the end face of the shield member, it is possible to promote the exhaled air to flow to the left and right and to be discharged to the outside of the shield member.
In the above aspect, the groove can have various shapes, but it is preferable to have an arc shape from the viewpoint of facilitating the flow of exhaled breath.
In the above aspect, the groove formed by the lower surface of the holding member and the shield member may be inclined so as to be low in the central portion near the nose and higher on both sides. By doing so, it is possible to suppress the exhalation from staying around the nose and to cause the action of flowing to both sides of the face, further suppressing the leakage of the exhaled breath.

In the present invention
The shield member has a shape that covers only a portion lower than the cheekbone.
The holding member may have a rotation mechanism that rotatably holds the shield member up and down on the left and right sides of the face.

In this way, the oral cavity can be exposed by rotating the shield member. Therefore, it is possible to eat and drink while wearing the lower open face shield, and it is possible to avoid the risk of infection by removing the lower open face shield and placing it on a table or the like.
In the above aspect, there may be a gap between the holding member and the shield member, but it is more preferable if both are brought into close contact with each other. For example, by forming the holding member slightly larger with an elastic material, the holding member can be brought into close contact with the inner surface of the shield member by elastic force when the shield member is lowered to a position covering the nasal cavity and the oral cavity.

In the present invention
The holding member may be made of urethane foam or a silicone resin.

In this way, the holding member can be formed with relatively high elasticity and light weight. Not limited to this, various materials can be used.

The present invention does not necessarily have all of the various features described above, and some of them may be omitted or combined as appropriate.

It is explanatory drawing which shows the structure of the lower part open type face shield in Example 1. FIG. It is explanatory drawing which shows the state which attached the lower part open type face shield in Example 1. FIG. It is explanatory drawing which shows the structure of the lower part open type face shield in Example 2. FIG. It is explanatory drawing which shows the structure of the lower part open type face shield in Example 3. FIG. It is explanatory drawing which shows the state which attached the lower part open type face shield in Example 3. FIG. It is explanatory drawing which shows the structure of the lower part open type face shield in Example 4. FIG. It is explanatory drawing which shows the lower part open type face shield as a prior art.

FIG. 1 is an explanatory diagram showing the configuration of the lower open type face shield 10 in the first embodiment. The lower open type face shield (hereinafter, also referred to simply as "face shield") 10 is a type that covers the lower half of the face. FIG. 1A shows a perspective view of the face shield as viewed from the front.

The shield member 11 is made of a transparent resin and has a shape that can cover the nasal cavity and the oral cavity when worn. The shape is not limited to the one shown in the figure. Further, the shield member 11 may be formed of an opaque material, and various materials such as metal and paper can be used in addition to the resin.

A holding member 12 made of urethane foam is attached to the upper part of the shield member 11. The holding member 12 may be made of silicon or the like. The holding member 12 may be partially attached, but in this embodiment, it is attached over the entire surface.
Further, the holding member 12 is formed with a convex portion 13 at a portion corresponding to the cheekbone. In this embodiment, the holding member 12 and the convex portion 13 are integrally molded, but they may be formed as separate members and then bonded or the like.

FIG. 1 (b) shows a state in which the face shield is viewed from the rear, that is, from the direction of arrow A in FIG. 1 (a).
The holding member 12 is attached over the entire width of the face shield 10. In addition, it is not a ring shape, but a U-shape that is not connected at the rear. The holding member 12 plays a role of holding the face shield 10 by applying an elastic force so as to sandwich the face from the left and right when worn. Therefore, in order to make this possible, the width of the holding member 12 in the left-right direction and the width of the face are slightly narrower.
In order to stabilize the face shield 10 at the time of mounting, it is preferable to increase the elastic force, that is, to narrow the width of the holding member 12 in the left-right direction. On the other hand, if the width of the holding member 12 in the left-right direction is too narrow, it may be necessary to spread the holding member left and right with both hands at the time of mounting. Therefore, the width and shape of the holding member 12 may be appropriately determined in consideration of these factors.

Further, between the convex portions 13, there are concave portions 14 that come into contact with the nose when worn. This corresponds to the nose pad. By providing the recess 14 in this way, the face shield 10 can be supported by the nose so as not to fall, and the face shield 10 can be stably attached. The shape may be such that the nose pad is not formed.

FIG. 2 is an explanatory diagram showing a state in which the lower open face shield 10 according to the first embodiment is attached.
As shown in the figure, the face shield 10 is attached so that the holding member 12 is located around the cheekbone under the user's eyes. The holding member 12 can hold the face shield 10 by applying an elastic force to the face so as to sandwich the face from the left and right. Further, the face shield 10 can be held more stably by the concave portion 14 serving as the nose pad touching the nose.
Further, since the face shield 10 is held around the cheekbones, there is an advantage that the glasses can be worn without any trouble.
The length of the holding member 12 can also be freely determined. In the example, it was up to the front of the ear. By doing so, attachment / detachment becomes easy. It may be extended to the back of the ear while pinching the outside of the ear or bypassing the outside of the ear. By doing so, it becomes possible to stably hold the product for a long period of time.
In addition, the length and shape may be such that they can be worn on the ears like glasses. By doing this, not only the elastic force but also the holding can be more stable by hanging it on the ear. At the same time, since the elastic force for holding can be reduced, it is possible to reduce the feeling of oppression, discomfort, or pain when worn for a long time.

In this embodiment, the holding member 12 is adhered to the shield member 11. Therefore, the boundary line 12L between the two is in a state of being in perfect contact with each other. When the face shield 10 is attached, exhaled air flows along the inner surface of the shield member 11, but the holding member 12 becomes a wall that obstructs the flow. Therefore, it is possible to prevent the exhaled air from flowing out above the holding member 12, and even if the glasses are worn, it is possible to prevent the exhaled air from becoming cloudy due to the exhaled air.

Further, the convex portion 13 has a shape along the nose and cheekbones. Therefore, when attached, the holding member 12 comes into close contact with the face, and in particular, prevents leakage from the area around the cheekbones (area a in the figure), the side of the nose (area b in the figure), and the like. can do. As a result, it becomes possible to further prevent fogging when wearing glasses.

According to the first embodiment, the outer surface of the face shield 10 can be grasped by hand and easily attached to and detached from the front of the face. Therefore, it is possible to suppress the risk of infection due to causes such as the hand touching various parts of the body or the inner surface of the shield member 11 at the time of attachment / detachment.

FIG. 3 is an explanatory diagram showing the configuration of the lower open type face shield 20 in the second embodiment. Similar to Example 1, it is a type that covers the lower half of the face.
In the face shield 20, the structures of the shield member 21, the holding member 22, and the convex portion 23 are the same as those in the first embodiment. Therefore, as in the first embodiment, the face shield 20 can be easily attached and detached.

Further, in the second embodiment, the rotation mechanism 24 is provided at the end of the holding member 22, and the shield member 21 is rotatably attached to the holding member 22 by the rotation mechanism 24.
The shield member 21 can rotate up and down by the rotation mechanism 24. FIG. 3A shows a state in which the shield member 21 is lowered, and FIG. 3B shows a state in which the shield member 21 is raised as shown by an arrow B. In the second embodiment, since the shield member 21 and the holding member 22 are not adhered to each other, the holding member 22 is held around the cheekbone even when the shield member 21 is raised.

By making the shield member 21 rotatable in this way, the oral cavity can be exposed while the face shield 20 is attached, and it is possible to eat and drink as it is. Therefore, it is possible to avoid the risk of infection by removing the face shield 20 and carelessly placing it on the table when eating or drinking.

In the second embodiment, the thickness t of the holding member 22 is formed to be slightly larger than the distance between the face and the shield member 21 at the time of wearing. By doing so, as shown in FIG. 3A, when the shield member 21 is lowered, the holding member 22 is pressed against the inner surface of the shield member 21 by the elastic force, so that the two are in close contact with each other. Therefore, as in the first embodiment, it is possible to prevent the exhaled air from flowing upward along the inner surface of the shield member 21.

FIG. 4 is an explanatory diagram showing the configuration of the lower open type face shield 30 in the third embodiment.
In the third embodiment, the shield member 31 is composed of a lower shield member 31L that covers the lower half of the face including the nasal cavity and the oral cavity, and an upper shield member 31U that covers the upper half of the face including the eyes. The lower shield member 31L and the upper shield member 31U may be formed separately and joined together, or both may be integrally formed.
The holding member 32 and the convex portion 33 have the same shape as that of the first embodiment. The holding member 32 is attached to the shield member 31.

FIG. 5 is an explanatory diagram showing a state in which the lower open face shield 30 according to the third embodiment is attached.
Similar to the first embodiment, the face shield 310 is attached so that the holding member 32 is located at the cheekbone on the lower side of the user's eyes. The holding member 32 can hold the face shield 30 by applying an elastic force to the face so as to sandwich the face from the left and right. Further, the face shield 30 can be held more stably by the concave portion 34 serving as the nose pad touching the nose.
Further, the convex portion 33 is in close contact with the face so as to fill the gap with the cheekbone. The configuration may be such that the concave portion 34 and the convex portion 33 are not provided.

The CC cross section of the holding member 32 is shown at the bottom of the figure. As shown in the figure, the holding member 32 has a recess 32a formed on the lower surface thereof. The recess 32 forms a continuous groove from the central portion to the end portion of the shield member 31, and acts to receive exhaled air. That is, the presence of the recess 32a can effectively receive the exhaled air and prevent the exhaled air from flowing to the face side, so that the fogging of the glasses and the face shield due to the leakage of the exhaled air is further suppressed. Is possible. Further, since the groove is continuous up to the end of the shield member 31, it is possible to extend the exhaled air to the left and right of the face, promote the discharge to the outside, and further suppress the fogging.
These cross-sectional shapes are similarly applicable in other embodiments.

The face shield 30 of the third embodiment can be easily attached from the front of the face as in the first embodiment.
The holding member 32 of the third embodiment is set up to the front of the ear, but the length thereof can be freely determined. As shown by the broken line in FIG. 5, it may be extended to the rear of the ear while sandwiching the outside of the ear or bypassing the outside of the ear. By doing so, it becomes possible to stably hold the product for a long period of time.
In addition, the length and shape may be such that they can be worn on the ears like glasses. By doing this, not only the elastic force but also the holding can be more stable by hanging it on the ear. At the same time, since the elastic force for holding can be reduced, it is possible to reduce the feeling of oppression, discomfort, or pain when worn for a long time.
These configurations are similarly applicable to other embodiments.

FIG. 6 is an explanatory diagram showing the configuration of the lower open type face shield in the fourth embodiment.
The lower open face shield 40 of the fourth embodiment is configured for a user wearing glasses. The shield member 41 is a type that covers the entire face as in the third embodiment.
The holding member 42 is shorter than that of the third embodiment. It may have the same length as in Example 3. The convex portion 43 of the holding member 42 serves to fill the gap between the cheekbone and the shield member 41 as in other embodiments. The recess 44 also serves as a nose pad, as in the other embodiments.
In the fourth embodiment, the pad 45 is provided so as to sandwich the strings of the spectacles. FIG. 6A shows the pad 45 in an enlarged manner. The pad 45 is formed with a tapered groove 45a at a portion sandwiching the strings. Since the groove 45a is tapered, the strings of the spectacles are stably held by the pad 45 as shown in FIG. 6B. Further, since the groove 45a is tapered, the pad 45 can be applied to strings of various thicknesses.
Further, the pad 45 is formed sufficiently long in the longitudinal direction, that is, in the direction along the string. By doing so, it is possible to prevent the face shield 40 from rattling in the vertical direction.

According to the face shield of the fourth embodiment, as in the other embodiments, the face shield can be easily attached and detached from the front of the face.
In addition, it is possible to stably hold the strings by using the strings of the glasses.

In the fourth embodiment, the holding member 42 and the pad 45 are configured as separate members, but they may be connected to form one member. Further, if the holding member 42 has the same length as that of the third embodiment and is provided with an elastic force for sandwiching the face, the face shield 40 can be held more stably.
Further, in the fourth embodiment, the concave portion 44 constitutes the nose pad portion, but the recess 44 may be prevented from hitting the nose. This is because, in the fourth embodiment, by sandwiching the strings of the spectacles with the pads 45, it is possible to prevent the face shield 40 from slipping off by using the nose pad of the spectacles.

The various embodiments of the present invention have been described above. According to the face shield of the embodiment, it is possible to facilitate attachment / detachment and reduce the risk of infection at that time.
The various features described in each embodiment do not necessarily have all, and some of them may be omitted or combined as appropriate. In the present invention, various modifications can be configured in addition to the above-mentioned examples.

The present invention is applicable to a lower open face shield that covers the nasal cavity and oral cavity of the face with the lower part open.

10 Lower open type face shield 11 Shield member 12 Holding member 12L Boundary line 13 Convex part 14 Concave 20 Lower open type face shield 21 Shield member 22 Holding member 23 Convex part 24 Rotating mechanism 30 Lower open type face shield 31 Shield member 31L Lower shield Member 31U Upper shield member 32 Holding member 33 Convex 34 Concave 40 Lower open face shield 41 Shield member 42 Holding member 43 Convex 44 Concave 45 Pad 45a Groove

Claims (9)

A lower open face shield that covers the nasal cavity and oral cavity of the face with the lower part open.
A shield member for covering the nasal cavity and the oral cavity, and
The shield is attached to the shield member and has a non-connected shape on the back of the head. A lower open face shield provided with a holding member for holding the member in a state of being separated from the nasal cavity and the front surface of the oral cavity by a predetermined distance. The lower open type face shield according to claim 1.
Further, a lower open type face shield provided with a nose pad portion for supporting the shield member with the nose portion so as not to fall. The lower open type face shield according to claim 1 or 2.
The holding member has a spectacle pad that sandwiches the strings of spectacles attached to the face from the outside.
The spectacle pad is a groove for holding the strings of spectacles, and is a lower open face shield having a tapered groove whose width becomes narrower in the depth direction. The lower open type face shield according to claim 2.
A lower open face shield in which the holding member and the nose pad are integrated. The lower open type face shield according to any one of claims 1 to 4.
The holding member is a lower open face shield that is in close contact with the inner surface of the shield member in a range wider than the oral width of the face. The lower open type face shield according to claim 5.
The holding member is a lower open type face shield having a shape that fits the face when worn. The lower open type face shield according to claim 5 or 6.
The holding member is a lower open face shield in which the lower surface is a continuous groove from the center to the end of the shield member. The lower open type face shield according to any one of claims 1 to 7.
The shield member has a shape that covers only a portion lower than the cheekbone.
The holding member is a lower open type face shield having a rotation mechanism that rotatably holds the shield member up and down on the left and right sides of the face. The lower open type face shield according to any one of claims 1 to 8.
The holding member is a lower open face shield made of urethane foam or silicone resin.

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