JP2013080063A - Dustproof cover for spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dustproof cover for spectacles that can be fitted to various spectacles in different shapes and sizes without causing any gap and also prevents manufacturing costs from increasing.SOLUTION: The dustproof cover for spectacles comprises a cylindrical cover body 1 composed of soft material that can be expanded and contracted and detachably fitted to behind at least one of a pair of right and left lenses L of spectacles G. The inner periphery of a forward end of the cover body 1 is provided with a groove 2 which is fitted into the lens L or a lens frame F of the spectacle G. The groove 2 expands and contracts in a lengthwise direction or a width direction to be fitted into the lens L or the lens frame F.

Description

  The present invention relates to a dustproof cover for glasses for protecting eyes from pollen, dust, wind, rain, and other flying objects.

  Conventionally, as this kind of dust-proof cover for glasses, as shown in FIG. 14, there are those which are respectively attached to the rear of the pair of left and right lenses of the glasses, and the cylindrical cover body 11 is connected. It connects with the bar | burr 12 and the hook 13 is attached to the outer end part of each cover body 11, and these hooks 13 are made to hook on the temple of spectacles (patent document 1).

  The conventional dustproof cover for eyeglasses constructed in this way can prevent pollen entering the eye from between the eyeglasses and the face, so it can reduce eye irritation caused by pollen, and can be worn while wearing eyeglasses. It is said that it is effective when going out or driving a car.

  Furthermore, as this kind of dust-proof cover for glasses, as shown in FIGS. 15 to 17, a cylindrical dust-proof cover along the periphery of the lens L is detachably attached to a glasses frame F in which the lens L is fitted. A cover 21 is provided, and at least a part of the dust-proof cover 21 is a ventilation part 22 having air permeability. The spectacle dust cover includes a frame body 23 that is detachably attached to the back surface of the rim of the spectacle frame F in order to be detachably attached to the spectacle frame F. The frame body 23 includes the cylindrical dust cover 21. Is provided with an engagement hole 24 on the rear surface of the rim of the spectacle frame F, and an engagement protrusion 25 that is detachably fitted into the engagement hole 24 is provided on the frame body 23. (Patent Document 2).

  The conventional dustproof cover for spectacles configured in this way can keep the user's field of view favorable by securely closing the periphery of the user's eyes and securely preventing the lens from fogging. It is said that high convenience can be realized because a function to prevent pollen and dust can be obtained by attaching and detaching a dustproof tool as required.

Japanese Patent Laid-Open No. 9-146054 Utility Model Registration No. 3092489

  Since the conventional dustproof cover for spectacles disclosed in Patent Document 1 only needs to hook the hook on the temple of the spectacles, it can be attached to spectacles having different shapes and sizes. However, this dustproof cover for glasses does not always fit the periphery of the front end of the cover body around any lens or lens frame of glasses of different shapes or sizes, and the cover body does not fit around the lens or lens frame. Since it only presses around the front edge, it is easy to create a gap between the lens or lens frame and the cover body, and it is impossible to reliably prevent pollen entering the eye from between the glasses and the face. Had problems.

  Further, the conventional dustproof cover for spectacles disclosed in Patent Document 2 is an engagement provided on a frame body bonded to one end of a cylindrical dustproof cover in an engagement hole provided on the back surface of the rim of the spectacle frame. Since the projection is attached to the eyeglasses, a gap is hardly formed between the lens or the lens frame and the dustproof cover, and pollen and the like can be reliably prevented from entering. However, this dust-proof cover for glasses requires a separate member called a frame to be attached to the glasses, and this frame is provided with an engaging projection, and the rear surface of the rim of the spectacle frame also corresponds to the engaging projection. Since a joint hole has to be provided, there is a problem that it takes time for manufacturing and increases the manufacturing cost.

  Therefore, the present invention has an object to solve the above-mentioned conventional problems, and can be mounted on various types of glasses having different shapes and sizes without any gaps, and the manufacturing cost is increased. It was made for the purpose of providing a dust-proof cover for glasses.

  The dustproof cover for spectacles of the present invention is made of a flexible soft material, and is a cylindrical cover body 1 that is detachably attached to the rear of at least one lens L of the pair of left and right lenses L of the spectacles G. A groove 2 that fits into the lens L or the lens frame F of the glasses G is provided on the inner periphery of the front end of the cover body 1, and the groove 2 expands and contracts in the length direction or the width direction, so that the lens L or The lens frame F is fitted.

  In the dustproof cover for eyeglasses of this invention, the groove 2 of the cover body 1 has a groove width wa for fitting the outer end side of the lens L or the lens frame F, and a groove width for fitting the vicinity of the center of the lens L or the lens frame F. It is wider than wb and is gradually widened from the vicinity of the center to the outer end side.

  In the dustproof cover for spectacles of the present invention, the cover body 1 is gradually expanded from the front end portion 1a to the rear end portion 1b, so that the upper surface portion 1c of the cover body 1 is inclined upward and the cover body 1 The lower surface portion 1d is inclined downward.

  In the dust-proof cover for spectacles of the present invention, the groove 2 of the cover body 1 is provided with an interrupted portion 2a for avoiding the bridge B of the spectacle G and an interrupted portion 2b for avoiding the temple T of the spectacle G.

  In the dustproof cover for glasses according to the present invention, a hole 3 through which the temple T of the glasses G is passed is provided in the front end portion 1 a of the cover body 1.

  In the dust-proof cover for eyeglasses of this invention, a groove width wb that fits in the vicinity of the center of the lens L or lens frame F of the groove 2 of the cover body 1 and a groove width that fits in the outer end side of the lens L or lens frame F. The ratio of wa is assumed to be 1: 1.2 to 2.2.

  In the dustproof cover for eyeglasses according to the present invention, the upward inclination angle α of the upper surface portion 1c of the cover body 1 is 23 ± 5 degrees, and the downward inclination angle β of the lower surface portion 1d of the cover body 1 is 18 ± 5 degrees. I have to.

  Since the dustproof cover for spectacles of the present invention is configured as described above, it can be attached to various spectacles having different shapes and sizes without causing a gap, and the manufacturing cost is increased. It became nothing.

It is a perspective view which shows one Embodiment of the dustproof cover for spectacles of this invention. It is a front view which shows one of a pair of right and left cover bodies of the dustproof cover for spectacles of this invention. It is a rear view of the cover body shown in FIG. It is sectional drawing of the cover body by the AA line of FIG. It is sectional drawing of the cover body by the BB line of FIG. It is sectional drawing of the cover body by CC line of FIG. It is sectional drawing of the cover body by the DD line | wire of FIG. It is explanatory drawing which shows the state which is going to mount | wear the spectacles of a metal frame with the dustproof cover for glasses of this invention. It is explanatory drawing which shows the state which is going to mount | wear the spectacles without a frame with the dustproof cover for spectacles of this invention. It is explanatory drawing which shows the state which is going to mount | wear the spectacles of a synthetic resin frame with the dustproof cover for spectacles of this invention. FIG. 9 is an explanatory view showing a state in which the spectacle dust cover of the present invention is completely attached to the spectacles of the metal frame from the state of FIG. 8. FIG. 10 is an explanatory diagram showing a state in which the dustproof cover for glasses of the present invention has been attached to the glasses without a frame from the state of FIG. 9. It is explanatory drawing which shows the state which has finished mounting | wearing the spectacles of the synthetic resin frame with the dustproof cover for spectacles of this invention from the state of FIG. It is a perspective view which shows an example of the conventional dustproof cover for spectacles. It is a perspective view which shows the state with which the other example of the conventional dustproof cover for spectacles was mounted | worn with spectacles. FIG. 16 is a perspective view of one of a pair of left and right cover bodies of the conventional dustproof cover for eyeglasses shown in FIG. 15. It is a principal part enlarged view of the back surface side of the rim | limb of the spectacles which wears the conventional dustproof cover for spectacles shown in FIG.

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

  The eyeglass dust-proof cover of the present invention is a cylindrical cover body 1 that is detachably attached to the rear of at least one lens L of the pair of left and right lenses L of the eyeglass G. On the inner periphery of the front end of the cover body 1, a groove 2 that fits into the lens L or the lens frame F of the glasses G is provided. The groove 2 extends and contracts in the length direction or the width direction so as to be fitted into the lens L or the lens frame F. The cover body 1 can be a pair for the right lens and the left lens, or a combination of the right lens and the left lens, but the right lens and the left lens are easy to attach and detach. It is preferable to divide it for each purpose.

  The cover body 1 is made of a stretchable soft material such as silicon rubber, polyethylene-based or polystyrene-based elastomer, and is integrally formed by injection molding, cast molding, or the like. And this cover body 1 can be attached to general spectacles with a lens frame or rimless spectacles without a lens frame, and since it is extensible, it can be attached to spectacles of different shapes and sizes. When the cover body 1 is made of silicon rubber, it has a high elongation rate and a high contraction force, and is held and fixed to the lens L or the lens frame F by using the force of returning the stretched silicon rubber as a tension. It will be certain. Furthermore, the cover body 1 can be transparent, translucent or opaque depending on the purpose of use. If the cover body 1 is made transparent, the wearer's field of vision is less likely to be obstructed and the usability is excellent. Moreover, the said cover body 1 becomes the thing excellent in fashionability by coloring according to the frame color of spectacles. Further, the cover body 1 is very light because it has a thickness of about 1 mm.

  The groove 2 of the cover body 1 can be shaped to apply to the thickness of various types of lenses L or lens frames F. For example, the groove width wa located on the outer end side of the lens L or lens frame F 2.4 mm to 10 mm, the groove width wb located near the center of the lens L or the lens frame F is 2.0 mm to 5.0 mm, and the groove width wc located on the inner end side of the lens L or the lens frame F is 2. By setting the thickness to 2 mm to 7.0 mm, it can be fitted into various types of lenses L or lens frames F. Further, the groove width wa for fitting the outer end side of the lens L or the lens frame F is made wider than the groove width wb for fitting the vicinity of the center of the lens L or the lens frame F, and gradually from the vicinity of the center to the outer end side. To be wide. The groove 2 of the cover body 1 has a ratio of the groove width wb that fits near the center of the lens L or the lens frame F to the groove width wa that fits the outer end side of the lens L or the lens frame F is 1: 1. In the case of glasses having a metal frame or no frame, the ratio of the groove width wb to the groove width wa is about 1: 1.6. The ratio of the groove width wb to the groove width wa is preferably about 1: 1.75. By doing so, as described later, the lens L or the lens frame F can be easily fitted into the groove 2 of the cover body 1. In particular, in the case of a lens having a high power, the edge thickness (peripheral thickness) increases, but even a lens having such a high power can be fitted smoothly. The groove width wc for fitting the lens L or the lens frame F in the groove 2 of the cover body 1 is a groove for fitting the vicinity of the center of the lens L or the lens frame F for the same reason as the groove width wa. It is almost the same as the width wb or slightly wider.

  Furthermore, the cover body 1 has a peripheral length of the rear end portion 1b longer than that of the front end portion 1a, and is gradually expanded from the front end portion 1a to the rear end portion 1b when not attached to the glasses G. Thus, the upper surface portion 1c of the cover body 1 is inclined upward, and the lower surface portion 1d of the cover body 1 is inclined downward. The upward inclination angle α of the upper surface portion 1c of the cover body is set to 23 ± 5 degrees, and the downward inclination angle β of the lower surface portion 1d of the cover body 1 is set to 18 ± 5 degrees (in this case, the lens in this case) L or the excitation angle γ of the lens frame F is 10 degrees). This is because, if the circumference of the front end 1a and the circumference of the rear end 1b are the same, when the cover 1 is attached to the glasses G, the front end 1a extends and the rear end This is because 1b may be constricted, which hinders the wearer's view. And the rear-end part 1b of the said cover body 1 becomes a shape match | combined with the wearer's face, the clearance gap between the cover body 1 and a wearer's face is reduced as much as possible, and invasion of pollen, dust, etc. is prevented. Yes. Depending on the wearer's face, there is a possibility that a gap may occur. However, if the cover body 1 is made of silicon rubber having a low hardness (equivalent to a shear of 45 degrees) or the like, the wearer may cut the rear end 1b with scissors. Can be adjusted to suit your face.

  Further, the groove 2 of the cover body 1 is provided with an interrupted portion 2a that avoids the bridge B on the side where the inner end of the lens L or the lens frame F is fitted so that the bridge B of the spectacle G does not interfere with the eyeglass G. It is preferable to provide a discontinuity 2b that avoids the temple T on the side where the outer end of the lens L or the lens frame F is fitted so that the temple T of G does not interfere. Furthermore, it is preferable to provide a hole 3 through which the temple T of the glasses G is passed in the front end 1a of the cover body 1. This hole 3 prevents the position shift at the time of attaching the cover body 1 by passing the temple T of the glasses G, and it is a vertically long slit shape so that it can correspond to various temples T having different width and thickness. Is formed. Further, the inner wall 4 of the groove 2 of the cover body 1 is thicker than the outer wall 5 to enhance the strength, so that the inserted lens L or lens frame F does not come off to the inner wall 4 side, and the lens L or lens frame F Good holding and fixing.

  As shown in FIGS. 8 to 10, the dustproof cover for eyeglasses of the present invention configured as described above is provided with one temple T of the eyeglasses G from the inside of the cover body 1 in the hole 3 of one cover body 1. Then, the cover body 1 is brought closer to the lens L or the lens frame F of the glasses G. Then, the groove 2 of the cover body 1 is moved in front of the lens L or the lens frame F, the front end portion 1a of the cover body 1 is picked with a finger, and the lens L or the lens frame F is moved from the outer end side to the inner side. What is necessary is just to fit in the groove | channel 2 of the cover body 1 over the end side.

  In this case, in the groove 2 of the cover body 1, the groove width wa for fitting the outer end side of the lens L or the lens frame F is wider than the groove width wb for fitting near the center of the lens L or the lens frame F. Since the lens L or the lens frame F is fitted from the widened side, the lens L or the lens frame F is easily fitted into the groove 2 of the cover body 1. In particular, even in the case of a lens with a large edge thickness and a case where the lens frame F as shown in FIG. 10 is thick, if the cover frame 1 is inserted from the wide side of the groove 2, The lens L or the lens frame F does not become difficult to fit in the groove 2 and can be fitted smoothly.

  In the dustproof cover for spectacles of the present invention, the other temple T of the spectacles G is passed through the hole 3 of the other cover body 1 and the lens L or the lens frame F is inserted into the groove 2 of the cover body 1 in the same manner. When it is inserted, it is attached to the glasses G as shown in FIGS.

  Furthermore, since the dust-proof cover for glasses of the present invention is made of a soft material that allows the cover body 1 to expand and contract, it can be attached to various glasses having different shapes and sizes without any gaps.

  Further, the dustproof cover for spectacles of the present invention does not require a separate member for mounting on spectacles and is integrally formed by injection molding, cast molding, or the like, so that the manufacturing cost does not increase.

DESCRIPTION OF SYMBOLS 1 Cover body 1a Front end part 1b Rear end part 1c Upper surface part 1d Lower surface part 2 Groove 2a Discontinuous part 2b Discontinuous part 3 Hole G Glasses L Lens F Lens frame B Bridge T Temple wa Groove width wb Groove width wc Groove width

Claims (7)

  This is a cylindrical cover body (1) that is made of a soft and flexible material and is detachably attached to the rear of at least one lens (L) of the pair of left and right lenses (L) of the glasses (G). A groove (2) that fits into the lens (L) or the lens frame (F) of the glasses (G) is provided on the inner periphery of the front end of the body (1). A dustproof cover for spectacles, which is expanded and contracted in the width direction so as to be fitted into the lens (L) or the lens frame (F).   The groove (2) of the cover body (1) has a groove width (wa) into which the outer end side of the lens (L) or lens frame (F) is fitted, and is near the center of the lens (L) or lens frame (F). The dustproof cover for spectacles according to claim 1, wherein the dustproof cover is made wider than the groove width (wb) into which the lens is fitted, and gradually increases from the vicinity of the center to the outer end side.   The cover body (1) is gradually expanded from the front end portion (1a) to the rear end portion (1b), so that the upper surface portion 1c of the cover body (1) is inclined upward and the cover body (1). The dust-proof cover for spectacles according to claim 1, wherein the lower surface portion (1 d) is inclined downward.   The groove (2) of the cover body (1) is provided with an interrupted portion (2a) that avoids the bridge (B) of the glasses (G) and an interrupted portion (2b) that avoids the temple (T) of the glasses (G). The dustproof cover for spectacles according to any one of claims 1 to 3, wherein the dustproof cover is provided.   The eyeglasses according to any one of claims 1 to 4, wherein a hole (3) for passing through the temple (T) of the glasses (G) is provided in the front end (1a) of the cover body (1). Dustproof cover.   A groove width (wb) that fits in the vicinity of the center of the lens (L) or lens frame (F) of the groove (2) of the cover body (1), and the outer end side of the lens (L) or lens frame (F) The dustproof cover for spectacles according to claim 2, wherein the ratio of the groove width (wa) into which the lens is fitted is 1: 1.2 to 2.2. The upward inclination angle (α) of the upper surface portion (1c) of the cover body (1) is 23 ± 5 degrees, and the downward inclination angle β of the lower surface portion (1d) of the cover body (1) is 18 ± 5. The dustproof cover for spectacles according to claim 3, wherein

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