face guard
The face guard with an adjustable annular frame and screw mechanism addresses gaps and interference issues, providing effective droplet prevention and compatibility with headgear.
Patent Information
- Application Number
- JP2021170574
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-10-18
- Publication Date
- 2025-12-01
- Estimated Expiration
- 2041-10-18
AI Technical Summary
Existing face guards leave gaps between the lower part and the wearer's face, allowing droplets to escape or penetrate, and may interfere with medical equipment when worn with headgear.
A face guard with a substantially annular frame worn around the neck, featuring a transparent shield attached to a semi-annular frame portion that can be adjusted in distance and angle from the face using a screw mechanism, allowing tilting and sliding movements.
The face guard allows for adjustable distance and angle adjustments, effectively preventing droplet penetration and minimizing interference with forehead medical equipment, enhancing usability and comfort.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a face guard that protects the face of a wearer. [Background technology]
[0002] For example, there is a face guard that protects the wearer's face from splashes of water, oil, and the like. The face guard disclosed in Patent Document 1 includes a curved body that is worn around the neck of the wearer, a fastener attached to the curved body, and a face material that covers the face. The face material is connected to the curved body by the fastener. This face guard has a face material that extends from the wearer's face to the neck, so it can prevent splashed oil from sticking to the neck when using oil, for example, when cooking fried foods in a food factory or at home.
[0003] Furthermore, the face guard disclosed in Patent Document 2 includes a sheet-like main body that covers the wearer's face, a base that supports the sheet-like main body so that it covers the wearer's face, and an attachment part that is attached to the base and allows the wearer to wear it. The base also includes a plate-like abutment part with a front and a rear, the rear of which is configured to abut against the front of the wearer's chest, and a support part that is attached to the front of the abutment part and supports the lower end of the sheet-like main body. The support part is configured to support the sheet-like main body so that the sheet-like main body is inclined upward at an acute angle relative to the front of the abutment part. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-189543 [Patent Document 2] Utility Model Registration No. 3230719 Summary of the Invention [Problem to be solved by the invention]
[0005] The face guard disclosed in Patent Document 1 leaves a gap between the lower part of the face guard and the wearer's face when the face guard is put on. Therefore, even if this face guard is worn to prevent droplets from spreading, if the wearer coughs or sneezes, droplets may escape from the lower part of the face guard to the outside of the face guard. In addition, if someone around the wearer coughs or sneezes, there is a risk that the droplets may penetrate the inside of the face guard from the lower part, which is an issue that remains.
[0006] Furthermore, the face guard disclosed in Patent Document 2 has a support portion provided on the base portion that supports the sheet-like main body portion so that the sheet-like main body portion is inclined upward at an acute angle to the front surface of the contact portion, thereby ensuring that the sheet-like main body portion is brought close to the wearer's face.
[0007] However, for example, during dental treatment, dentists may wear medical equipment (such as a head mirror or head microscope) on their foreheads and also wear a face guard while performing treatment. In this case, there remains the issue that if the distance between the sheet-like main body and the face of the wearer (dentist) is small, medical equipment worn on the forehead may interfere, or depending on the size of the medical equipment, the face guard may not be able to be worn.
[0008] A primary object of the present invention is to provide a face guard that is held around the neck of a wearer and allows the distance from the wearer's face to the shield to be freely adjusted. [Means for solving the problem]
[0009] The present invention provides a face guard that is held around the neck of a wearer and covers the mouth and nose at a predetermined distance from the face of the wearer, the face guard having a substantially annular frame that is worn around the neck of the wearer, and a transparent shield that is attached to the frame and stands up from the chest of the wearer, the frame having a substantially semi-annular first frame portion to which the shield is attached, and a substantially semi-annular second frame portion that comes into contact with the neck of the wearer, The second frame portion has a groove portion of a predetermined length formed in a plate-like portion formed at each of two ends of the second frame portion, and The part connecting the first frame part and the second frame part allows the shield attached to the first frame part to be tilted and moved at any angle from the wearer's face using the second frame part as a reference. and can be freely moved back and forth from the wearer's face via the groove while maintaining the angle. It is characterized by being configured as an adjustment mechanism. [Effects of the Invention]
[0010] According to the present invention, it is possible to arbitrarily adjust the distance from the wearer's face to the shield. [Brief explanation of the drawings]
[0011] [Figure 1] FIG. 1 is a schematic diagram illustrating an example of the configuration of a face guard according to the present embodiment. [Figure 2] FIG. 2 is a diagram illustrating an example of the configuration of a frame of a face guard. [Figure 3] 3(a), (b), and (c) are diagrams for explaining an example of the configuration of a frame of a face guard, which is different from that of FIG. 2. [Figure 4] 10A and 10B are diagrams for explaining an example of a tilting operation of a frame. [Figure 5] 10A, 10B, and 10C are diagrams for explaining an example of the extension and contraction (front and back) movement of the frame. [Figure 6] 10A and 10B are diagrams illustrating an example of the configuration of a shield provided in a face guard. [Figure 7] 10A and 10B are diagrams for explaining an example of tilting and contracting (front and back) movements of the face guard. [Figure 8]8 is a diagram for explaining an example of tilting and contracting (front and back) movements of the face guard, different from FIG. 7. [Figure 9] FIG. 10 is a diagram illustrating an example of a state in which a wearer is wearing the face guard. [Figure 10] FIG. 10 is a diagram illustrating an example of a state in which a wearer is wearing a face guard, different from FIG. 9. [Figure 11] FIG. 11 is a diagram for explaining an example of a state in which a wearer is wearing a face guard, different from that shown in FIGS. 9 and 10. [Figure 12] 5A and 5B are schematic diagrams illustrating an example of the configuration of a pair of protrusions provided on a frame. [Figure 13] 10A and 10B are schematic diagrams illustrating an example of the configuration of a dividing mechanism that divides the second frame portion into two. [Figure 14] Reference diagram showing an example of how to use a face guard. DETAILED DESCRIPTION OF THE INVENTION
[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0013] [Example of implementation] FIG. 1 is a schematic diagram illustrating an example of the configuration of a face guard according to this embodiment. The face guard 100 is held around the neck of a wearer (see FIG. 9, etc.) and covers the mouth and nose of the wearer at a predetermined distance from the face. As shown in FIG. 1, the face guard 100 has a frame 20 formed in a substantially annular shape that is worn around the neck of the wearer, and a transparent shield 10 that is attached to the frame 20 and stands up from the chest of the wearer. For example, the shield 10 is made of polyethylene terephthalate (PET), and the frame 20 is made of ABS resin containing an antibacterial agent. These materials are just examples, and they can be combined as desired depending on the intended use of the face guard 100 and other circumstances.
[0014] 2, 3(a), 3(b), and 3(c) are diagrams for explaining an example of the configuration of the frame 20 of the face guard 100. Fig. 2 is a perspective view showing the overall appearance of the frame 20. Fig. 3(a) is a top view of the frame 20, (b) is a front view, and (c) is a rear view.
[0015] The frame 20 has a first frame portion 201 formed in a substantially semi-annular shape to which the shield 10 is attached, and a second frame portion 202 formed in a substantially semi-annular shape that comes into contact with the neck of the wearer. 2, first frame portion 201 is formed with protrusions 201a that serve to position shield 10 when it is attached to first frame portion 201. Details of positioning will be described later.
[0016] The area where the first frame portion 201 and the second frame portion 202 meet (the connecting area) is configured as an adjustment mechanism that can tilt and move the shield 10 attached to the first frame portion 201 to any angle from the wearer's face, based on the second frame portion 202 (see Figures 4, 8, and 9 described below).
[0017] The adjustment mechanism of the face guard according to this embodiment is composed of a screw structure 204, plate-shaped portions 202a formed at each of the two ends of the second frame portion 202, and groove portions 202b formed in these plate-shaped portions 202a.
[0018] The adjustment mechanism uses a screw configuration 204, which is, for example, a combination of male and female screws, to press the end of the first frame portion 201 against the plate-like portion 202a of the second frame portion 202. This restricts the relative movement of the shield 10 with respect to the frame 20 (second frame portion 202), or allows the shield 10 to move by releasing the pressure. In this way, it is possible to restrict or release the relative movement of the shield 10 with respect to the frame 20 (second frame portion 202) by the simple action of "tightening" or "loosening" the screws.
[0019] Note that the screw structure 204 is one example of a structure for press-fitting the end of the first frame portion 201 and the plate-like portion 202a of the second frame portion 202, and any other structure may be used as long as it provides a similar effect. Also, any structure may be used as long as it can restrict or release the relative movement of the shield 10 with respect to the frame 20 (second frame portion 202).
[0020] The adjustment mechanism also functions as a mechanism that allows the shield 10 attached to the first frame portion 201 to be freely moved back and forth from the wearer's face using the second frame portion 202 as a reference (see FIGS. 5, 8, and 9, which will be described later in detail).
[0021] As shown in FIG. 3(a), the second frame portion 202 is formed with two predetermined protruding portions (position D in the figure) toward its center. For example, the dashed circle in FIG. 3(a) is a schematic representation of an example of the size (diameter) of the wearer's neck. The fit of the wearer's neck size (diameter) varies depending on the physique of the wearer, such as male, female, adult, or child. Therefore, by providing the protruding portions, it is possible to increase the range of people who can use the device without compromising the fit.
[0022] The location of the second frame portion 202 where the protruding portion is to be provided (for example, position D in the figure) can be set arbitrarily, and the amount of protrusion (size) can also be set arbitrarily depending on the intended user.
[0023] FIG. 4 is a side view for explaining an example of the tilting operation of the frame 20. As shown in FIG. As described above, the adjustment mechanism is a mechanism that allows the shield 10 attached to the first frame part 201 to be tilted and moved at any angle from the wearer's face at the contact point (connection point) between the first frame part 201 and the second frame part 202, based on the second frame part 202.
[0024] 4, the first frame portion 201 can be swung around the screw structure 204 as a rotation axis. This causes the shield 10 to tilt in response to the swinging of the first frame portion 201, allowing the wearer to tilt the shield 10 to any angle according to their preference or usage situation while maintaining the fit of the second frame portion 202.
[0025] FIG. 5 is a side view for explaining an example of the extension and contraction (front and back) movement of the frame 20. As shown in FIG. As mentioned above, the adjustment mechanism is also a mechanism that allows the shield 10 attached to the first frame portion 201 to be freely moved back and forth from the wearer's face using the second frame portion 202 as a reference.
[0026] The first frame portion 201 can be moved forward from the state shown in Figure 5(a) to the state shown in Figure 5(b), and further from the state shown in Figure 5(b) to the state shown in Figure 5(c), etc. Also, the first frame portion 201 can be moved backward from the state shown in Figure 5(c) to the state shown in Figure 5(b), and further from the state shown in Figure 5(b) to the state shown in Figure 5(a).
[0027] This allows the shield 10 to move in accordance with the forward and backward movement of the first frame part 201, and the wearer can freely adjust the distance between the shield 10 and the wearer's face according to their own preference and usage situation, while maintaining the fit of the second frame part 202.
[0028] 6(a) and (b) are diagrams illustrating an example of the configuration of the shield 10 included in the face guard 100. Fig. 6(a) is a diagram of the shield 10 when viewed from above, and Fig. 6(b) is a diagram showing the thickness of the shield 10. For example, when the purpose of preventing droplet infection in dental care, which will be described later, is to emphasize the shape of the shield, where a wide shape extending from bottom to top is important, it is preferable that the thickness of the shield be set to between 0.2 mm and 1.0 mm. The shield 10 has a hole 101a corresponding to a protrusion 201a that serves as a positioning element when the shield 10 is attached to the first frame portion 201, and a hole 101b that communicates with the first frame portion 201 via a screw structure 204. The size in plan view, shape, and thickness t (FIG. 6(b)) of the shield 10 can be set arbitrarily depending on the purpose of use of the face guard 100 and other circumstances.
[0029] For example, the shield 10 can be formed so that the width of the shield 10 increases from bottom to top when viewed from the front when attached to the first frame portion 201. Specifically, by increasing the area of width F compared to width L shown in FIG. 6(a), the shield 10 increases in width from bottom to top when viewed from the front.
[0030] This is because the width size of the shield 10 in a front view at width L is determined by the hole portion 101b, the screw configuration 204, and the width of the first frame portion 201, and the so-called restoring force of the shield 10 (the force that tries to return it to a plate shape) is regulated, thereby maintaining its shape. In contrast, in the region of width F, the restoring force of the shield 10 (the force that tries to return it to a plate shape) acts, expanding according to the size of the region of width F, and the width size of the shield 10 when viewed from the front becomes a wide shape extending from bottom to top.
[0031] 6(a), the holes 101a and 101b can be set in accordance with the protrusion 201a of the first frame portion 201 and the holes (not shown) corresponding to the screw configuration 204. In this embodiment, in order to correspond to the first frame portion 201, the holes 101a and 101b are formed with an interval of height H when the shield 10 is viewed in plan.
[0032] As in this embodiment, by forming hole 101b at a relatively higher position with respect to hole 101a, it is possible to improve the ease of attaching the shield 10 to the first frame portion 201, and the sense of stability when the wearer puts on the face guard 100, or what is called comfort. The shape of the first frame portion 201 has a region that is formed in a roughly V-shape when viewed from the front. A predetermined portion of the first frame portion 201, including this region, comes into contact with the shield 10. In this way, the fact that the first frame portion 201 has an area formed in a roughly V-shape as described above is of great significance in stably maintaining the wide shape of the shield 10 facing upward from below.
[0033] 7 and 8 are side views for explaining an example of the tilting operation and the extension / contraction (front and back) operation of the face guard 100. FIG. The wearer can tilt the shield 10 to any angle and adjust the distance between the shield 10 and the wearer's face according to their preference and usage situation, while maintaining the fit of the second frame portion 202. By combining tilting movement and forward / backward movement, the position of the face guard 100 can be determined to better suit the wearer's preference and usage situation.
[0034] 9, 10, and 11 are side views illustrating an example of a state in which a wearer is wearing the face guard. The hatched arrows in each figure schematically show droplets that are sprayed when someone around the wearer coughs or sneezes. With the face guard 100 according to this embodiment, the combination of tilting movement and forward / backward movement, as described above, allows the wearer to position the face guard 100 according to the usage situation. This makes it possible to more effectively prevent droplets from entering the inside of the face guard 100 from the bottom.
[0035] For example, in dental care, dentists often treat patients lying on an examination table with their eyes lowered (head down). The face guard 100 according to this embodiment can effectively prevent droplets from entering the mouth even if the patient coughs or sneezes in such a situation.
[0036] Furthermore, for example, during dental treatment, a dentist may wear a medical device (e.g., a microscope) on his or her forehead and also wear a face guard while performing treatment. Even in such a situation, the face guard 100 according to this embodiment can effectively prevent interference between the inner surface of the shield 10 and the medical device worn by the dentist on his or her forehead. Of course, this also greatly increases the degree of freedom in the size of the medical device that the dentist can wear on his or her forehead, and also makes it easy to attach and detach the device.
[0037] Fig. 12 is a schematic diagram for explaining an example of the configuration of a pair of protrusions 202c provided on the second frame portion 202. Fig. 12(a) is a top view, and Fig. 12(b) is a rear view. As shown in FIG. 12, the second frame portion 202 may be formed with a pair of protrusions 202c extending outward from opposite positions in the width direction. Furthermore, the portion on the second frame part 202 where the protrusion 202c is formed can also be a protruding portion of the second frame part.
[0038] As shown in FIG. 12(a), this protrusion 202c functions as a positioning element (to prevent the elastic body (for example, rubber string) 300) when it is attached to the second frame portion 202 (to prevent it from falling off). By attaching the elastic body 300 to the second frame portion 202, it is possible to further increase the range of people who can use the second frame portion 202 without compromising the fit of the second frame portion 202. Furthermore, the elastic force of the elastic body 300 makes it possible to adjust the width of the second frame portion 202 (such as in the direction of the arrow in FIG. 12). In this way, it becomes possible to wear the second frame portion 202 (face guard 100) with a fit that suits your preferences.
[0039] 13(a) and 13(b) are schematic diagrams illustrating an example of the configuration of a dividing mechanism that divides the second frame portion 202 into two parts. Fig. 13(a) is a top view, and Fig. 13(b) is a rear view. 13, a dividing mechanism 202d that divides the second frame portion 202 into two can also be provided. For example, the dividing mechanism 202d can be configured using a magnet or by fitting a recess and a protrusion together. This makes it easier to put on and take off the face guard 100.
[0040] FIG. 14 is a reference diagram showing an example of how the face guard 100 is used. In FIG. 14, a dentist is wearing medical equipment such as a head mirror or head microscope on his forehead, and it can be seen that he is wearing the face guard 100 in this situation.
[0041] In this way, with the face guard 100 according to this embodiment, the distance from the wearer's face to the shield 10 can be adjusted as desired. Specifically, the wearer can tilt the shield 10 to any angle according to their preference and usage situation, while maintaining the fit of the second frame portion 202. Also, the wearer can adjust the distance between the shield 10 and the wearer's face according to their preference and usage situation, while maintaining the fit of the second frame portion 202. Furthermore, by combining tilting movement with forward and backward movement, the position of the face guard 100 can be determined according to the wearer's usage situation.
[0042] Therefore, by adjusting the distance between the shield and the face (forehead) depending on the situation in which the face guard 100 is used, for example, a doctor wearing the face guard 100 can easily attach and detach a head mirror or head microscope when using these instruments, and the instruments can be protected when in use.
[0043] The above-described embodiments are intended to more specifically explain the present invention, and the scope of the present invention is not limited to these examples. [Explanation of symbols]
[0044] 10···Shield, 20···Frame, 100···Face guard, 201···First frame portion, 202···Second frame portion.
Claims
1. A face guard that is held around the neck of a wearer and covers the mouth and nose of the wearer at a predetermined distance from the face of the wearer, The face guard is a frame formed in a substantially annular shape to be worn around the neck of the wearer, and a transparent shield attached to the frame and rising from the chest of the wearer, the frame has a substantially semi-annular first frame portion to which the shield is attached and a substantially semi-annular second frame portion that comes into contact with the wearer's neck, the second frame portion has a groove portion of a predetermined length formed in a plate-like portion formed at each of two ends of the second frame portion, The portion connecting the first frame portion and the second frame portion is configured as an adjustment mechanism that can tilt the shield attached to the first frame portion to any angle from the face of the wearer with the second frame portion as a reference, and can move the shield freely back and forth from the face of the wearer via the groove portion while maintaining the angle. Face guard.
2. the adjustment mechanism restricts movement of the shield by pressing the end of the first frame portion and the plate-like portion of the second frame portion together using a screw configuration, or allows movement of the shield by releasing the pressure contact. The face guard according to claim 1.
3. The second frame portion is formed by projecting two predetermined portions toward the center thereof. The face guard according to claim 1 or 2.
4. The second frame portion is characterized in that a pair of protrusions extending outward are formed at positions opposite to each other in the width direction of the second frame portion. The face guard according to claim 1, 2 or 3.
5. The portion where the protrusion is formed is a protruding portion of the second frame portion. The face guard according to claim 4.
6. The second frame portion has a dividing mechanism that divides the second frame portion into two. A face guard according to any one of claims 1 to 5.
7. The shield is formed in a shape such that a width thereof in a front view when attached to the first frame portion increases from bottom to top. A face guard according to any one of claims 1 to 6.
Citation Information
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