JP2015187740A - Protective spectacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide protective spectacles, even if a user has a large head size, preventing an increase in a gap between a peak part and a user's face by preventing the deformation of a lens, capable of highly efficiently preventing entering of pollen and dust into the eyes, thus protecting the eyes, and preventing distortion of an image viewed through the lens by preventing a change in an optical axis angle.SOLUTION: The protective spectacles comprise: a brace bar 1; arms 2 attached to both ends of the brace bar 1; and a lens 3. A central upper part of the lens 3 is fixedly attached to a central part of the brace bar 1, and a peak part 8 projecting along the user's face is formed at the peripheral edge of the lens 3.

Description

  The present invention relates to protective eyeglasses for protecting eyes from pollen and dust.

  Conventionally, as this type of spectacles, there are a type in which a lens is fitted into a frame with a long frame, a type in which a lens with a long frame is fitted into a frame, and a type in which a single lens is integrated with a frame (Patent Document 1). ~ 4).

  For example, as shown in FIG. 11, in this type of eyeglasses, in the case where a single lens is integrated with a loop, the distance between the left and right cranes 12 and 12 attached to both ends of the single lens 11 is assumed in design. When the user has the ideal head size, as shown in FIG. 12, the eaves 13 provided integrally with the upper peripheral edge of the lens 11 are used by the user. It can be covered without generating a large gap S between the face and the face.

  On the other hand, apart from the above-mentioned glasses, there is a pair of glasses in which an image seen through a lens is hardly affected by the size of the head size (face width) (Patent Document 5).

  As shown in FIGS. 14 and 15, the spectacles are provided with a brace bar 21 and a nose pad portion 22, and a temple 23 is attached to both ends of the brace bar 21. The single lens 24 is held by the nose pad 22. Further, the left and right upper edge portions of the single-lens lens 24 are arranged in front of the brace bar 21 with a gap g. And the space | interval of the said left and right cranes 23 and 23 is formed in the ideal head size assumed on the design.

  Therefore, in the above conventional glasses, when the head size (face width) is large, the left and right temples 23 and 23 spread each other and the brace bar 21 is elastically deformed. Since only the central portion is held by the central portion of the brace bar 21 and the nose pad portion 22, only the portion of the single lens 24 that does not affect the field of view is deformed, so that the image seen through the single lens 24 is hardly distorted. become.

JP-A-10-328230 Japanese Utility Model Publication No. 5-60890 Utility Model Registration No. 3026228 Utility Model Registration No. 3152412 JP 2002-214567 A

  However, in the conventional protective eyeglasses shown in FIG. 11, when the user's head size is larger than the ideal head size designed in design, as shown in FIG. 12 is spread by the user's temporal region. In this case, since the left and right vines 12 and 12 are attached to both ends of the single lens 11, when the left and right vines 12 and 12 are expanded, the entire single lens 11 is naturally elastically deformed. Has a point.

  First, the optical axis angle of the single lens 11 may change, and distortion may occur in an image viewed through the single lens 11. And the clearance gap S between the eagles 13 of the single lens 11 and the user's face becomes large, and it becomes impossible to efficiently prevent pollen, dust and the like from entering the eyes. Furthermore, since the single lens 11 is made of a hard synthetic resin and has elasticity, when the single lens 11 is elastically deformed, the user's temporal region is compressed by the left and right temples 12 and 12. Is done.

  In the conventional glasses shown in FIG. 14, even when the user's head size (face width) is large, only the portion that does not affect the field of view of the single lens 24 is deformed, so that it can be seen through the single lens 24. Although the image is hardly distorted, the gap between the single-lens lens 24 and the user's face is wide, and it is hardly possible to prevent pollen or dust from entering the eye.

  Therefore, the present invention has an object to solve the above-mentioned conventional problems. Even when the user's head size is large, the lens is prevented from being deformed, so that the Hisashi and the user's face can be prevented. It can efficiently prevent pollen and dust from entering the eye without increasing the gap, and can protect the eye. Further, by preventing the lens from being deformed, the optical axis angle does not change and the lens is passed through. The purpose of the present invention is to provide protective glasses in which the visible image is not distorted.

  The protective glasses of the present invention include a brace bar 1, a temple 2 made of the same synthetic resin as the brace bar 1, and attached to both ends of the brace bar 1, and a lens 3 made of a synthetic resin harder than the brace bar 1 and the temple 2. The lens 3 is fixed to the central part of the brace bar 1 and a lens 8 is projected on the periphery of the lens 3 along the user's face in the direction of the user's face. 3 is formed as one piece.

  In the protective glasses of the present invention, the upper center portion of the lens 3 is fixed to the central portion of the brace bar 1 at two points.

  Further, in the protective glasses of the present invention, screws 7 are respectively inserted into two screw holes 3c provided at a distance of 3 to 10 mm from the center of the lens 3 so that the lens 3 is fixed to the brace bar 1.

  In the protective glasses of the present invention, the lens 3 and the eagles 8 contain an ultraviolet absorber.

  Furthermore, the protective glasses of the present invention have a lens 3 as a single lens, have a horizontally long shape that substantially coincides with the length of the brace bar 1, and are formed in a substantially arc shape in plan view so that the upper peripheral edge substantially follows the brace bar 1. .

  The protective eyeglasses of the present invention have a lens 3 as a binocular and are connected to each other by a bridge portion 9 and have a horizontally long shape substantially equal to the length of the brace bar 1, and the upper peripheral edge is the brace bar 1. Is formed in a substantially arc shape in plan view so as to be substantially along.

  Since the protective glasses of the present invention are configured as described above, even when the user's head size is large, the gap between the eagles 8 and the user's face does not increase, and pollen, dust, etc. Can effectively prevent the eye from entering the eye, protect the eye, and the optical axis angle does not change, and the image seen through the lens is not distorted.

It is a perspective view which shows one Embodiment of the protective glasses of this invention. It is a disassembled perspective view of the protective glasses of this invention shown in FIG. It is a top view which shows the state which removed the nose pad of the protective glasses of this invention shown in FIG. It is a rear view of the protective glasses of this invention shown in FIG. It is sectional drawing of the protective glasses of this invention by the AA line in FIG. It is a perspective view which shows other embodiment of the protective glasses of this invention. It is a disassembled perspective view of the protective glasses of this invention shown in FIG. It is a top view of the protective glasses of this invention shown in FIG. FIG. 2 is a plan view showing a state in which the protective glasses of the present invention shown in FIG. 1 are worn by a user having an ideal head size assumed in design. FIG. 2 is a plan view showing a state in which the protective glasses of the present invention shown in FIG. 1 are worn by a user who is larger than an ideal head size assumed in design. It is a perspective view which shows an example of the conventional protective glasses. FIG. 12 is a plan view showing a state in which the conventional protective glasses shown in FIG. 11 are worn by a user with an ideal head size assumed in design. FIG. 12 is a plan view showing a state in which the conventional protective glasses shown in FIG. 11 are worn by a user who is larger than the ideal head size assumed in design. It is a front view which shows an example of the conventional spectacles which prevented the image seen through a lens from being distorted. It is a top view which abbreviate | omits and partially shows the conventional spectacles shown in FIG.

  Hereinafter, embodiments for carrying out the protective glasses of the present invention will be described in detail with reference to the drawings.

  1 to 5, the protective glasses of the present invention are composed of a brace bar 1, a temple 2 attached to both ends of the brace bar 1, and a single-lens lens 3, and FIGS. 1 includes a brace bar 1 in which a bridge portion 4 is formed in the center, a temple 2 attached to both ends of the brace bar 1, and a binocular lens 3.

  The brace bar 1 is made of an elastically deformable synthetic resin such as nylon or polycarbonate, and the bridge portion 4 formed at the center is integrally formed with the brace bar 1. Further, the brace bar 1 is formed in a substantially arc shape in a plan view so as to substantially follow the shape of the forehead of a user having an ideal head size assumed in design.

  The temple 2 is made of the same synthetic resin as the brace bar 1 and is attached to the brace bar 1 via a hinge 5 so as to be foldable.

  The single-lens lens 3 is made of polycarbonate that is harder than the brace bar 1 and the temple 2, has a horizontally long shape that substantially matches the length of the brace bar 1, and has an upper peripheral edge that substantially follows the brace bar 1. It is formed in a substantially arc shape in plan view.

  The single-lens lens 3 has a notch 3a formed in the lower center portion, and a nose pad 6 is attached to the inside of the notch 3a. An engagement convex portion 3b is formed inside the cutout portion 3a so as to be detachably engaged with an engagement concave portion (not shown) formed in the nose pad 6. The upper center portion of the lens 3 is fixed to the central portion of the brace bar 1 by screws or the like. In the illustrated case, the center upper portion of the lens 3 is fitted into a groove 1a provided in the center portion of the brace bar 1, two screw holes 3c provided at intervals of 3 to 10 mm on the left and right in the center upper portion of the lens 3, and these screws. Screws 7 are respectively inserted into two screw holes 1b provided in the central portion of the brace bar 1 so as to face the holes 3c, and the screws 7 are screwed into the brace bar 1 to fix the lens 3 to the brace bar 1. It is assumed that When the lens 3 is fixed to the brace bar 1, the distance between the two screw holes 7 is as narrow as possible without causing a problem in strength so that distortion of the brace bar 1 hardly affects the lens 3. It is desirable to do. The fixing of the lens 3 to the brace bar 1 corresponds to a bridge portion 4 of a twin-lens lens described later in the central portion of the brace bar 1 without providing the groove 1a in the central portion of the brace bar 1. If it is provided, it can be performed in the same manner as in the case of a twin-lens lens.

  Further, the lens 3 is formed with a ridge 8 that protrudes along the user's face along the periphery thereof. That is, the upper edge of the lens 3 is integrally formed with a fin 8 that protrudes inward (toward the user's face) along the lower forehead of the user's face. Further, on the lens 3, if necessary, a fin 8 (not shown) that protrudes inward (toward the user's face) so as to follow the upper cheek of the user's face is provided at the lower peripheral edge thereof. The eaves 8 (not shown) that protrudes inward (toward the user's face) so as to be formed integrally or along the periphery of both sides of the user's face can be formed integrally. .

  The binocular lens 3 is made of polycarbonate that is harder than the brace bar 1 and the temple 2, and the inner upper portions thereof are connected by a bridge portion 9, and substantially coincides with the length of the brace bar 1. It is horizontally long and is formed in a substantially arc shape in plan view so that the upper peripheral edge substantially follows the brace bar 1. The upper center portion of the lens 3, that is, the bridge portion 9 is fixed to the central portion of the brace bar 1, that is, the bridge portion 4 by screwing or the like. In the illustrated example, by inserting screws 7 into two screw holes 3c provided between the center of the bridge portion 9 of the lens 3 and 3 to 10 mm on the left and right sides, and screwing these screws 7 into the bridge portion 4, It is assumed that the lens 3 is screwed to the brace bar 1. When the lens 3 is fixed to the brace bar 1, the distance between the two screw holes 7 is as narrow as possible without causing a problem in strength so that distortion of the bridge portion 9 hardly affects the lens 3. It is desirable to do. In addition, the bridge portion 4 is wider than the brace bar 1 to have a thickness and a width that are excellent in design properties with changes, and there is a problem in strength due to the fixing condition of the lens 3 and the like. I try not to get up. The fixing of the lens 3 to the brace bar 1 corresponds to the groove 1a of the single-lens lens described above in the central part of the brace bar 1 without providing the bridge part 4 in the central part of the brace bar 1. If such a thing is provided, it can also carry out similarly to the case of a single lens lens.

  Further, the lens 3 is formed with a ridge 8 that protrudes along the user's face along the periphery thereof. That is, the entire edge of the lens 3 is provided with a fin 8 that protrudes inward (toward the user's face) along the lower forehead, upper cheek, and temple neighborhood of the user's face. The lens 3 may be partially provided on the upper peripheral edge, the lower peripheral edge, and both side peripheral edges, as in the single-lens lens 3 described above, without providing the eagles 8 on the entire peripheral edge.

  Although the said eagles 8 are made translucent, they can also be made opaque as needed. In addition, the said eagles 8 can also contain the ultraviolet absorber. In this case, if the lens 3 is made to contain an ultraviolet absorber, the eaves 8 formed integrally can also be made to contain the ultraviolet absorber. Further, if the lens 3 is formed of a material having a high light transmittance, the eaves 8 formed integrally is also formed of a material having a high light transmittance. Conversely, the lens 3 is formed of a material having a low light transmittance. In this case, the eaves 8 formed as a unit is also formed of a material having low translucency.

  The protective eyeglasses of the present invention configured as described above, in the case of a user with an ideal head size assumed in design, as shown in FIG. Since the lens 3 is also not deformed, the chisels 8 provided on the periphery of the lens 3 also have large gaps S between these portions and the chisels 8 along the lower forehead, upper cheeks, and the vicinity of the temples. It is possible to efficiently prevent pollen and dust from entering the eye. Since the lens 3 is not deformed, the image seen through the lens 3 is not distorted. Further, since the brace bar 1 is not deformed, the user's temporal region is not pressed by the temple 2.

  Further, in the case of a user whose head size is larger than the ideal head size assumed in design, the protective glasses of the present invention deform both ends of the brace bar 1 when worn, as shown in FIG. Since the central portion of the brace bar 1 is hardly deformed, the lens 3 fixed in the vicinity of the central portion of the brace bar 1 is deformed so as to affect the appearance and the gap between the eagles 8 and the user's face. There is nothing to do. Accordingly, a large gap is generated between the brace bar 1 and the lower part of the user's forehead, but the eaves 8 provided on the periphery of the lens 3 are along the lower part of the user's forehead, upper cheek, and near the temple. A large gap S does not occur between these portions and the eagles 8, and it is possible to efficiently prevent pollen and dust from entering the eyes. Since the lens 3 is not deformed, the image seen through the lens 3 is not distorted. Further, since the brace bar 1 is made of an elastically deformable synthetic resin, even if both ends thereof are deformed, the user's temporal region is not pressed by the temple 2.

  Further, the protective glasses of the present invention can effectively prevent the intrusion of ultraviolet rays from the side surface when the glasses 8 are worn when the sheep 8 contains an ultraviolet absorber. If the material is made of a low material, the eyes can be protected from the strong sunlight from the side when wearing glasses.

1 Brace bar 2 Vine 3 Lens 8 Hashi 9 Bridge part

Claims (6)

A brace bar (1) made of an elastically deformable synthetic resin, a temple (2) made of the same synthetic resin as the brace bar (1) and attached to both ends of the brace bar (1), and the brace bar ( 1) and a lens (3) made of a synthetic resin harder than the temple (2), and the upper center of the lens (3) is fixed to the central portion of the brace bar (1). A pair of protective glasses (8) projecting in the direction of the user's face along the user's face along the periphery of the lens (3) is formed integrally with the lens (3). The protective glasses according to claim 1, characterized in that the central upper part of the lens (3) is fixed to the central part of the brace bar (1) at two points. Screws (7) were respectively inserted into two screw holes (3c) provided at intervals of 3 to 10 mm from the center of the lens (3), and the lens (3) was fixed to the brace bar (1). The protective glasses according to claim 2. The protective glasses according to any one of claims 1 to 3, wherein the lens (3) and the eagles (8) contain an ultraviolet absorber. The lens (3) is a single lens, and is a horizontally long shape that substantially matches the length of the brace bar (1), and is formed in a substantially arc shape in plan view so that the upper peripheral edge is substantially along the brace bar (1). The protective glasses according to any one of claims 1 to 4. The lens (3) is a binocular, and the inner upper parts thereof are connected by a bridge portion (9). The lens (3) is a horizontally long shape that substantially matches the length of the brace bar (1). 5. The protective glasses according to claim 1, wherein the protective glasses are formed in a substantially arc shape in plan view so as to substantially follow 1).

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