Spectacle frames and attachments for spectacle frames

Abstract

To provide: a spectacles frame capable of preventing fogging of a lens of spectacles while maintaining sealability of a mask; and an attachment for the same.SOLUTION: A spectacles frame 1 has a frame body 2 for supporting a peripheral edge of a pair of left and right lenses 20, 20. A pair of left and right projecting pieces 5, 5 projecting inward from the lenses 20,20 in a substantially horizontal direction are provided at lower ends of the frame body 1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an eyeglass frame and an attachment for an eyeglass frame that prevent the lenses from fogging up due to the wearer's breath when wearing a mask. [Background technology]

[0002] People may wear masks to prevent the inhalation of cold and flu viruses, pollen, and fine dust particles in the air, or to prevent the spread of droplets caused by coughing and sneezing. In particular, in recent years, due to the spread of the new coronavirus (COVID-19), people have been forced to wear masks all year round, regardless of the season.

[0003] When a person wearing glasses puts on a mask, the breath containing moisture and carrying the user's body temperature that passes through the upper edge of the mask and the mask body rises and enters the face side of the lenses of the glasses, fogging the lenses and obstructing visibility. In this case, it is troublesome to wipe the fogged lenses with a cloth, etc., and if the lenses fog up in a situation where you cannot use your hands, such as when driving a car, it becomes difficult to maintain visibility, which is very dangerous.

[0004] To prevent such lens fogging, anti-fog glasses have been provided in the past. These anti-fog glasses have a sheet that extends downward from the frame or the lower part of the lenses of the glasses, and by wearing a mask over the sheet, the flow of exhaled air leaking out from the upper edge of the mask is changed to prevent exhaled air from entering between the lenses and the face, thereby preventing fogging. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2017-3714 A (Page 3, Figure 1) Summary of the Invention [Problem to be solved by the invention]

[0006] However, with the anti-fog glasses shown in Patent Document 1, the mask is worn over a sheet that extends downwards, which creates a gap between the face and the top end of the mask that is larger than the thickness of the sheet. This creates the risk that droplets from the user may spread to the outside without passing through the mask, or that fine dust particles and viruses floating in the air may enter the oral cavity through the gap.

[0007] The present invention has been made in response to these problems, and aims to provide an eyeglass frame and an attachment for an eyeglass frame that can prevent the lenses of eyeglasses from fogging up while maintaining the airtightness of the mask. [Means for solving the problem]

[0008] In order to solve the above problems, the eyeglass frame of the present invention comprises: A pair of eyeglass frames having a frame body supporting the peripheries of a pair of right and left lenses, The frame body is characterized in that a pair of left and right protruding pieces are provided at the lower end thereof, the left and right protruding pieces protruding substantially horizontally inward beyond the lens. According to this feature, when a user of glasses puts on a mask and then puts on the glasses, the protruding piece that protrudes substantially horizontally inward from the lens, i.e., toward the user's face, presses the vicinity of the upper end of the mask body toward the face, narrowing the gap between the upper end of the mask body and the face, thereby guiding the flow of exhaled air inside the mask to the sides and lower part of the mask body, preventing the humid exhaled air inside the mask from entering between the lens and the face and preventing the lens from fogging. Also, even with exhaled air carrying body temperature that passes through the mask body and rises, the bottom surface of the protruding piece blocks the gap between the lens and the user's face, preventing the exhaled air outside the mask from entering between the lens and the face and preventing the lens from fogging.

[0009] The eyeglass frame has a pair of left and right nose pads that come into contact with the wearer's nose, and the pair of protruding pieces have an extension portion whose end on the nose pad side extends inward in a substantially horizontal direction. According to this feature, the extension presses from the outside into the gap between the mask and the face from the nose to the cheeks that is formed when the mask is worn, thereby preventing exhaled air from entering between the lens and the face and preventing the lens from fogging up.

[0010] The pair of protruding pieces are characterized in that the central side of each of the pair of protruding pieces is curved in a concave shape when viewed from above. According to this feature, when eyeglasses to which the eyeglass frame of the present invention is applied are worn over a mask, the protruding pieces easily fit to the shape of the wearer's face, thereby not only completely sealing the gap between the lenses and the face but also providing comfort to the wearer.

[0011] The pair of protruding pieces are characterized in that they are made of a soft material that is softer than the frame body. According to this feature, when eyeglasses to which the eyeglass frame of the present invention is applied are worn over a mask, the protruding pieces are made of a soft material, so that the eyeglasses are comfortable to wear.

[0012] The protruding piece is characterized in that it protrudes in a substantially horizontal direction along the shape of the lower end of the frame body when viewed from the front. According to this feature, the protrusion protrudes along the front view shape of the lower end of the frame body, so that when eyeglasses to which the eyeglass frame of the present invention is applied are worn over a mask, the protrusion is less noticeable to others and can be worn naturally.

[0013] The soft material is characterized by being silicone. According to this feature, the protruding piece is made of silicone and is therefore comfortable to wear.

[0014] An attachment for an eyeglass frame that is attached to an eyeglass frame having a frame body that supports the peripheries of a pair of left and right lenses, The lens is attached to the lower end of the frame body and is characterized by comprising a pair of left and right protruding pieces that protrude substantially horizontally inward beyond the lens. According to this feature, by attaching the eyeglass frame attachment to the eyeglass frame, the protruding piece of the eyeglass frame attachment presses the upper end of the mask body toward the skin, narrowing the gap at the upper end of the mask body, and directs the flow of exhaled air inside the mask to the side of the mask body, preventing the exhaled air from entering between the lens and the face and preventing the lens from fogging. Also, even if the humid exhaled air passes through the mask and rises, the bottom surface of the protruding piece blocks the gap between the lens and the user's face, preventing the lens from fogging. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing an eyeglass frame according to a first embodiment. [Diagram 2] (a) is a rear view of the glasses, (b) is a side view of the glasses, and (c) is a top view of the glasses. [Diagram 3] FIG. 1A is a perspective view showing a state in which a wearer A wears a mask, and FIG. 1B is a perspective view showing a state in which the wearer A wears glasses over the mask. [Figure 4] FIG. 1(a) is a schematic diagram showing the flow of the wearer A's exhaled air inside the mask, and FIG. 1(b) is a schematic diagram showing the manner in which the exhaled air rises after passing through the mask. [Diagram 5] FIG. 1A is a rear view showing a modified eyeglass frame in an embodiment, and FIG. 1B is a perspective view showing a state in which a wearer A is wearing eyeglasses with a modified eyeglass frame applied over a mask. [Figure 6] FIG. 11 is a perspective view showing an attachment for eyeglass frames in a second embodiment. [Figure 7] FIG. 2A is a rear view showing a manner in which the eyeglass frame attachment is attached to a general-purpose eyeglass frame, and FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An eyeglass frame and an attachment for an eyeglass frame according to the present invention will be described below with reference to the following examples. EXAMPLES

[0017] The eyeglass frame according to the first embodiment will be described with reference to Fig. 1 to Fig. 5. In the following description, the up, down, left and right directions are defined based on a position facing a wearer wearing eyeglasses to which the eyeglass frame of the present invention is applied as shown in Fig. 3(b), and the front and back directions are defined based on the wearer.

[0018] First, reference numeral 1 in Fig. 1 denotes an eyeglass frame of the present invention. This eyeglass frame 1 is molded from a resin with excellent thermal stability, and is composed of a frame body 2 having a through hole into which a pair of left and right lenses 20, 20 are fitted and supported, and temples 3, 3 extending from the side ends of the frame body 2 to the rear side. The pair of lenses 20, 20 are fitted and supported by the frame body 2, so that the eyeglass frame 1 functions as eyeglasses G1. The material of the eyeglass frame 1 may be a plastic material such as celluloid or acetate, or a metal material such as titanium or aluminum.

[0019] 2(a), the frame body 2 is mainly composed of upper edges 2a, 2a located above the lens 20, outer edges 2b, 2b located outside the lens 20, inner edges 2c, 2c located inside the lens 20, and lower edges 2d, 2d located below the lens 20. The inner edges 2c, 2c are formed with nose pads 4, 4 extending to the rear side, and when the spectacles G1 are worn, the nose pads 4, 4 are placed against the wearer's nose, allowing the spectacles G1 to be worn stably.

[0020] A pair of left and right protruding pieces 5, 5 are integrally formed on the lower edge portions 2d, 2d, extending from the lower edge portions 2d, 2d toward the rear side beyond the lenses 20, 20. The protruding pieces 5, 5 are mainly composed of inner ends 5A, 5A located closest to the nose pad portion 4, outer ends 5C, 5C located closest to the temple portion 3, and central portions 5B, 5B connecting the inner ends 5A, 5A and the outer ends 5C, 5C.

[0021] As shown in Fig. 2(b), the protruding piece 5 protrudes inward in a substantially horizontal direction from the lower edge 2d of the frame main body 2, and the lower end of the lower edge 2d and the lower surface 5D of the protruding piece 5 are located at substantially the same height. This makes it possible to wear the glasses G1 to which the eyeglass frame 1 of the present invention is applied over a mask M, which will be described later, naturally without the protruding pieces 5, 5 being noticeable to others. In this embodiment, the frame main body 2 and the protruding piece 5 are integrally molded from the same material.

[0022] As shown in FIG. 2(c), the inner end 5A of the protruding piece 5 extends further toward the rear side than the central portion 5B and the outer end 5C. The outer end 5C also extends further toward the front side than the central portion 5B, and the central portion 5B formed between the inner end 5A and the outer end 5C is curved in a gentle, approximately concave shape in a plan view. On the rear side of the protruding piece 5, a contact surface 5E that contacts the upper part of the outer surface of the mask M (described later) when the spectacles G1 are worn is formed from the inner end 5A to the central portion 5B and the outer end 5C. Furthermore, the inner end 5A extends more toward the inside in the horizontal direction than the nose pads 4.

[0023] FIG. 3(a) shows a view of a wearer A wearing a mask M. The mask M covers the mouth and nose N of the wearer A, and its upper end covers the area around the cheekbones. The material of the mask M is a urethane mask designed in consideration of strength, texture, breathability, filtering properties, etc. The mask M is not necessarily limited to the urethane mask of this embodiment, and may be a surgical mask using a nonwoven fabric used in medical settings, or a cloth mask made of gauze, etc.

[0024] As shown in FIG. 3(a), when a wearer A wears a mask M, a gap D may be formed between the left and right sides of the wearer A's nose N and the upper end of the mask M depending on the height of the wearer A's nose N. The gap D is generated when the upper end of the mask M is separated from the depression on the face from the nose N to the cheekbones of the wearer A. Although the gap D does not necessarily occur depending on the structure of the mask M or the height of the wearer A's nose N, it is difficult to completely close the gap D by adjusting the way the mask M is worn. The wearer A's breath is at approximately the same temperature as body temperature and is usually hotter than the outside air, so it rises inside the mask M and leaks out from the gap D. If general-purpose glasses are worn in this state, the breath leaking out from the gap D passes between the wearer's face and the lenses of the glasses, and water vapor adheres to the back of the lenses due to the moisture contained in the breath, causing the lenses to fog up.

[0025] When the eyeglasses G1 to which the eyeglass frame 1 of the present invention is applied is put on from the state in which the mask M shown in Fig. 3(a) is worn, the state shown in Fig. 3(b) is obtained. The eyeglass frame 1 is formed with protruding pieces 5, 5, so that the abutment surface 5E (see Fig. 2(c)) of the protruding pieces 5, 5 abuts against the outer surface of the mask M, pressing the mask M against the face of the wearer A. Furthermore, since the inner end 5A of the protruding pieces 5, 5 protrudes forward, the mask M is pressed against the depression caused by the curvature of the face from the nose N to the cheeks of the wearer A, narrowing the gap D.

[0026] In addition, the central portion 5B of the protruding pieces 5, 5 is gently curved and formed into a generally concave shape in a plan view, so that the central portion 5B comes into contact with the face of the wearer A near the cheekbones, and the inner end portion 5A and the outer end portion 5C on both the left and right sides of the central portion 5B come into contact with the face continuously, and the contact surface 5E of the protruding pieces 5, 5 comes into contact with the face shape almost entirely, making it easy to fit. Therefore, the vicinity of the upper end of the mask M is pressed toward the face, and the gap between the lenses 20, 20 and the face is completely blocked, and the wearer A is made comfortable. In this way, the protruding pieces 5, 5 press the mask M toward the face side of the wearer A to narrow the gap D, so that the exhaled air is prevented from passing between the face of the wearer A and the lenses 20, 20 of the spectacles G1, and thus the front surface of the lenses 20, 20 is prevented from being fogged up by water vapor adhering thereto. Furthermore, since the inner end 5A extends more horizontally inward than the nose pad 4, the pressing effect of the inner end 5A on the face is enhanced, thereby reliably preventing exhaled air from entering between the lens 20 and the face.

[0027] As shown in Fig. 4(a), when the wearer A puts on the glasses G1 over the mask M, the gap D (see Fig. 3(a)) generated at the upper end of the mask M is narrowed by the projections 5, 5 pressing the mask M, so that the exhaled air between the inner surface of the mask M and the face of the wearer A is guided to the outer edges 2b, 2b without passing through the upper end side of the mask M. The guided exhaled air rises along the outer edges 2b, 2b and leaks out, so that water vapor is prevented from adhering to the back surface of the lenses 20, 20 and causing the lenses to fog up.

[0028] In addition, the lower surface 5D of the protruding piece 5 blocks the gap between the face of the wearer A and the lenses 20, 20 of the eyeglasses G1, preventing the exhaled air from passing between the face of the wearer A and the lenses 20, 20 of the eyeglasses G1, and thus guides the rising exhaled air to the outer surface side of the lenses 20, 20 as shown in Fig. 4(b). Here, the lower surface 5D of the protruding piece 5 is formed into a curved surface that faces smoothly upward from the central portion 5B side to the outer end portion 5C side, so that the exhaled air rising on the outer surface side of the mask M can be easily guided to the outer surface side of the lenses 20, 20.

[0029] Fig. 5(a) is a rear view of the eyeglass frame 10 showing a modified example of the eyeglass frame 1 described above. The same reference numerals are used to designate the same components as those in the above embodiment, and the description thereof will be omitted. In the eyeglass frame 10 in the modified example, the protruding pieces 50, 50 extend toward the rear side beyond the frame body 12. The protruding pieces 50, 50 are mainly composed of inner ends 50A, 50A located closest to the nose pads 14, outer ends 50C, 50C located closest to the temples 13, and central parts 50B, 50B connecting the inner ends 50A, 50A and the outer ends 50C, 50C.

[0030] The outer end 50C of the protruding piece 50 extends toward the front side from approximately the center of the outer edge portion 12b of the frame main body 12. The inner end 50A of the protruding piece 50 is connected to the front side continuously from the lower end of the nose pad portion 14. As a result, as shown in FIG. 5(b), when the wearer A wears the glasses G2 to which the eyeglass frame 10 of the modified example is applied from above the mask M, the protruding piece 50 presses the mask M against the face of the wearer A to narrow the gap generated at the upper end of the mask M, and the protruding piece 50 closes the gap between the lens 20 and the wearer A over a wide area, so that water vapor from the wearer A's breath adheres to the front surface of the lenses 20, 20, preventing the lenses from fogging up.

[0031] As described above, the eyeglass frame 1 includes a frame main body 2 supporting the periphery of a pair of left and right lenses 20, and a pair of left and right protruding pieces 5 that protrude approximately horizontally inward from the lenses 20 are provided on the lower edge 2d of the frame main body 2. Therefore, when a wearer A of the eyeglasses G1 puts on a mask M and then puts on the eyeglasses G1, the protruding pieces 5 that protrude approximately horizontally inward from the lenses 20, i.e., toward the face of the wearer A, press the vicinity of the upper end of the mask M toward the face, narrowing the gap D between the upper end of the mask M and the face. This guides the flow of exhaled air inside the mask M to the sides and bottom of the mask M, preventing moist exhaled air inside the mask M from entering between the lenses 20 and the face and preventing the lenses 20 from fogging up. In addition, even when body temperature exhaled air passes through the mask M and rises, the lower surface 5D of the protruding piece 5 blocks the gap between the lens 20 and the face of the wearer A, preventing the exhaled air outside the mask M from entering between the lens 20 and the face, and preventing the lens 20 from fogging up.

[0032] In addition, the eyeglass frame 1 has a pair of left and right nose pads 4 that come into contact with the nose of the wearer A, and the pair of protruding pieces 5 have inner ends 5A as extensions that extend inwardly in a substantially horizontal direction at the ends on the nose pad 4 side. Therefore, the inner ends 5A press from the outward side against the gap D between the mask M and the face from the nose to the cheeks that is formed when the mask M is worn, thereby preventing exhaled air from entering between the lens 20 and the face and preventing the lens 20 from fogging up.

[0033] In addition, since the pair of protruding pieces 5 are formed with a concave curve on the central side when viewed in a plane, when the eyeglasses G1 to which the eyeglass frame 1 of the present invention is applied is worn over the mask M, the protruding pieces 5 tend to fit along the shape of the wearer's face, thereby not only completely sealing the gap between the lenses 20 and the face, but also providing comfort to the wearer A.

[0034] Furthermore, since the protruding piece 5 protrudes in an approximately horizontal direction along the front view shape of the lower end part of the frame main body 2, the protruding part 5 protrudes along the front view shape of the lower edge part 2d of the frame main body 2, when the eyeglasses G1 to which the eyeglass frame 1 of the present invention is applied are worn over the mask M, the protruding part 5 is not noticeable to others and can be worn naturally. EXAMPLES

[0035] Next, an attachment for eyeglass frames according to a second embodiment will be described with reference to Figures 6 and 7. Note that the description of the configuration and effects that overlap with the above embodiment will be omitted. The attachment for eyeglass frames is a pair of protruding pieces 6, 6 that are attached to the lower edge of a general-purpose eyeglass frame by adhesive or the like, and is molded from a soft material such as silicone, vinyl sheet, plastic film, or paper, which is softer than the general-purpose eyeglass frame.

[0036] The protruding piece 6 as an attachment for an eyeglass frame is formed from a mounting surface 6A which is a flat surface onto which adhesive tape 60 is affixed for adhering to the lower edge of a general-purpose eyeglass frame, a contact surface 6B which is formed from one side of the mounting surface 6A to the other and constitutes both side surfaces and the front surface of the attachment 6 for an eyeglass frame, a flat upper surface 6C, and a lower surface 6D which has the same shape as the upper surface.

[0037] As shown in Fig. 7(a) and (b), when the protruding piece 6 as the attachment for the eyeglass frame is attached to the general-purpose eyeglass frame 11, the attachment surface 6A to which the adhesive tape 60 is attached is adhered so as to face and contact the back surface of the lower edge portion 11a below the lens 20 of the general-purpose eyeglass frame 11. The contact surface 6B of the attachment for the eyeglass frame 6 is arranged on the face side of the wearer A. The contact surface 6B is mainly composed of inner ends 16A, 16A arranged close to the nose pad portion 11b side of the general-purpose eyeglass frame, outer ends 16C, 16C arranged closest to the temple portion 11c side, and central portions 16B, 16B connecting the inner ends 16A, 16A and the outer ends 16C, 16C.

[0038] 7(a), the inner end 16A of the protruding piece 6 extends further forward than the central portion 16B and the outer end 16C. In addition, since the outer end 16C also extends further forward than the central portion 16B, the central portion 16B formed between the inner end 16A and the outer end 16C is gently curved and formed into a generally concave shape in plan view.

[0039] In this way, the protruding piece 6 serving as an attachment for an eyeglass frame is attached to a general-purpose eyeglass frame 11, and the eyeglasses G3 to which the protruding piece 6 is attached are worn over the mask M. The protruding piece 6 presses the mask M against the face of the wearer A, narrowing the gap, thereby preventing exhaled air from passing between the face of the wearer A and the lenses of the eyeglasses G3 and preventing water vapor from adhering to the front surface of the lenses and causing fogging.

[0040] In addition, the eyeglass frame attachment is attached to the eyeglass frame 11 having a frame body supporting the peripheries of the pair of left and right lenses 20, and is made up of a pair of left and right protruding pieces 6 attached to the lower edge 11a of the frame body and protruding substantially horizontally inward from the lenses. By attaching the eyeglass frame attachment to the eyeglass frame 11, the protruding pieces 6 as the eyeglass frame attachment press the vicinity of the upper end of the mask body toward the skin and narrow the gap at the upper end of the mask M, thereby guiding the flow of exhaled air inside the mask M to the side of the mask M, preventing the exhaled air from entering between the lens and the face and preventing the lens from fogging up. In addition, even with humid exhaled air passing through the mask M and rising up, the bottom surfaces of the protruding pieces block the gap between the lens and the user's face, preventing the lens from fogging up.

[0041] In addition, the pair of protruding pieces 6 are formed from a silicone that is softer than the frame main body, so when the glasses G3 are worn over the mask M, the protruding pieces 6 are made from a soft material, making them comfortable to wear.

[0042] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention also includes modifications and additions that do not deviate from the gist of the present invention.

[0043] For example, in the above embodiment 1, it was explained that the frame main body 2 and the protruding piece 5 are integrally molded from the same material, but the frame main body 2 and the protruding piece 5 may be integrally molded from different materials.

[0044] In the above embodiment, the lens 20 is assumed to be a prescription lens having translucency, but the lens 20 may be applied to sunglasses used for blocking light.

[0045] In addition, in the above embodiment, an eyeglass frame in which the nose pad portion 4 is integrally molded with the frame main body portion 2 is used as an example. However, this is not limited to this, and the protruding piece may be provided on an eyeglass frame having a nose pad portion arranged using a screw on the inner edge portion 2c.

[0046] In addition, in the above embodiment, it has been explained that the inner end 5A of the protruding piece 5 extends further forward than the central portion 5B and the outer end 5C, but this is not limited to this, and the amount of extension may be adjusted to match the wearer's facial shape, or the inner end 5A, central portion 5B, and outer end 5C may extend uniformly. [Explanation of symbols]

[0047] 1. Eyeglass frames 2 Frame body 5 protruding piece 5A Inner end (extending part) 5B Central part 5C Outer edge 5D Bottom 5E Contact surface 6 Protruding piece (attachment for eyeglass frames) 6A Mounting surface 6B Contact surface 6C Top 6D Bottom 20 Lenses 50 protruding piece 60 Adhesive Tape

Claims

1. A pair of eyeglass frames is provided with a frame body that supports the peripheries of a pair of right and left lenses and has nose pads, An eyeglass frame characterized in that a pair of left and right protruding pieces, which protrude only toward the wearer in a substantially horizontal direction, are formed integrally with the frame body on the back surface of the lower end of the frame body, and each of the pair of protruding pieces has its inner end positioned close to the nose pads when viewed in a plane.

2. The eyeglass frame according to claim 1 , wherein the pair of protruding pieces are formed so that the center side of each of the pair of protruding pieces is curved in a concave shape when viewed from above.

3. A pair of eyeglass frames is provided with a frame body that supports the peripheries of a pair of right and left lenses and has nose pads, An eyeglass frame characterized in that a pair of left and right attachments are attached to the back of the lower end of the frame body so as to protrude only toward the wearer in a substantially horizontal direction, and each of the pair of attachments has its inner end positioned adjacent to the nose pads when viewed in a plane.

4. The eyeglass frame according to claim 3 , wherein the pair of attachments are formed so that the center side of each of the pair of attachments is curved in a concave shape when viewed from above.

5. 4. The pair of attachments for an eyeglass frame according to claim 3, wherein the pair of attachments are made of a soft material.

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