JP3576844B2 - Frameless glasses - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to frameless eyeglasses in which a bridge or a yoke is fixed directly to a spectacle lens to eliminate a peripheral edge of the spectacle lens.
[0002]
[Prior art]
There are two types of frameless eyeglasses, a front-fit type in which a tongue (a tongue for screwing to the lens) of a yoke and a bridge is attached to the front surface of the spectacle lens, and a rear-fit type in which the back surface is attached to the rear surface.
[0003]
FIG. 11 shows conventional edgeless spectacles 10 of the front-fit type, and FIG. 12 shows conventional edgeless glasses 20 of the back-fit type.
These frameless eyeglasses 10 and 20 are screwed to left and right eyeglass lenses 1A and 1B, bridges 12 and 22 connecting the left and right eyeglass lenses 1A and 1B, and side ends of the left and right eyeglass lenses 1A and 1B. And the temples 4 hinged to the yolos 13, 23.
[0004]
In the frameless spectacles 10 shown in FIG. 11, the bridge 12 and the yoke 13 are integrally provided with tongues (tongues) 12a, 13a located on the front side of the spectacle lenses 1A, 1B. The bolts and nuts 5 are fixed to the front surfaces of 1A and 1B.
[0005]
In the frameless spectacles 20 shown in FIG. 12, the bridge 22 and the yoke 23 are integrally provided with tongues 22a, 23a located on the rear side of the spectacle lenses 1A, 1B. The bolts and nuts 5 are fixed to the rear surfaces of 1A and 1B.
[0006]
These front and rear hit types have advantages and disadvantages, respectively.
That is, in the case of the front contact type, when the edge of the lens is increased and the edge thickness (the thickness of the side end portion of the lens) is increased, the edge is hardly conspicuous, but the temple is opened. The lens has the disadvantage that it is easily deformed in the direction in which the yoke opens, the tongue is noticeable because it is in front of the lens, and if the lens to be mounted is large and the lens becomes thick, the rear surface of the lens approaches the corneal apex. .
[0007]
On the other hand, in the case of the rear-applied type, there are merits that it is difficult to deform strongly due to the force of opening the temple, it is hard to notice because the tongue is behind the lens, and the rear surface position of the lens is hard to change depending on the power of the mounted lens However, there is a demerit that when the edge becomes thicker, the lens appears to protrude forward.
[0008]
As described above, the front-applied type and the back-applied type each have advantages and disadvantages.Therefore, which type is selected depends on the idea of the person wearing or selling the glasses, or It is best to individually determine each time according to the power of the lens to be mounted.
[0009]
[Problems to be solved by the invention]
However, in the case of conventional frameless glasses, the front-applied type and the rear-applied type are each provided as a dedicated product at the store, and once the frame is selected, the wearer or the seller is given “front-applied” thereafter. There was no room to choose between “back-up” and “back-up”, but the frame provided by the manufacturer would determine whether it was “front-up” or “back-up”. For this reason, in some cases, the merits of the “front hit” and the “back hit” cannot be fully utilized.
[0010]
In the present invention, in consideration of the above circumstances, when selecting eyeglasses at a store, after selecting an eyeglass lens and a frame, a tongue or a tongue of a bridge or a bridge is applied to the eyeglass lens, or the “back” You can choose whether to `` apply '', provide marginless glasses that can make full use of the benefits of front and back appointment and reflect the intentions of the wearer and seller at the point of sale The purpose is to do.
[0011]
[Means for Solving the Problems]
The invention according to claim 1 includes left and right spectacle lenses, a bridge for connecting the left and right spectacle lenses, a yoke screwed to a side end of the left and right spectacle lenses, and a temple connected to the yoke. In the frameless glasses provided,
The yolo is divided into a yolo body on the side connecting the temple and a connecting piece screwed on the eyeglass lens,
The connecting body is provided on the main body of the eyepiece with an edge contacting portion that comes into contact with the peripheral surface of the spectacle lens, and a groove in the front-rear direction is provided in the edge contacting portion. It is possible to select and connect one of two directions: the direction of the connecting piece when performing pre-applying by screwing the piece to the front of the spectacle lens, and the direction of the connecting piece when performing the post-applying by screwing to the back of the spectacle lens and said that the content was.
[0012]
In the frameless spectacles of the present invention, if the connecting piece is connected to the yoke main body on the front contact side, the yoke can be attached to the spectacle lens in a front contact mode. Further, if the connecting piece is connected to the back body side with respect to the body body, it is possible to attach the body to the spectacle lens in a back support mode.
[0013]
According to a second aspect of the present invention, in the first aspect, the connecting piece is an L-shape having a tongue piece selectively screwed to a front surface or a rear surface of the spectacle lens and a base piece orthogonal to the tongue piece. The base body of the L-shaped connecting piece is fitted into the groove of the main body and screwed to integrate the main body with the connecting piece.
[0014]
In the frameless spectacles of the present invention, since the base piece of the connecting piece is fitted and screwed into the groove provided in the edge contact portion of the main body, the edge contact portion is brought into contact with the peripheral surface (edge) of the eyeglass lens. In this state, the screwed portion of the base piece cannot be seen from the outside. Therefore, in the assembled state, it is completely invisible from the outside that the yoroi are divided.
[0015]
According to a third aspect of the present invention, there is provided an edgeless spectacle comprising left and right spectacle lenses, a bridge connecting the left and right spectacle lenses, and a temple connected to a side end of the left and right spectacle lenses via a yoke. ,
The bridge is divided into a central bridge body and connecting pieces at both ends screwed to the spectacle lens,
The bridge body is provided with an edge contacting portion that comes into contact with the peripheral surface of the spectacle lens, a groove in the front-rear direction is provided in the edge contacting portion, and the connecting piece is fitted into the groove to be connected to the bridge. It is possible to select and connect one of two directions: the direction of the connecting piece when performing pre-applying by screwing the piece to the front of the spectacle lens, and the direction of the connecting piece when performing the post-applying by screwing to the back of the spectacle lens and said that the content was.
[0016]
In the frameless spectacles according to the present invention, the bridge can be attached to the spectacle lens in a front-applying manner by connecting the connecting piece to the front side of the bridge body. In addition, if the connecting piece is connected to the back contact side with respect to the bridge body, the bridge can be attached to the spectacle lens in a back contact mode.
[0017]
According to a fourth aspect of the present invention, in any one of the first to third aspects, a washer made of an elastic material is inserted between the connecting piece and the spectacle lens, and the connecting piece and the spectacle lens are screwed.
[0018]
In the frameless spectacles of the present invention, since a washer made of an elastic material is interposed between the connecting piece and the spectacle lens, when a screw is passed in parallel with the edge of the strong spectacle lens, the connecting piece and the spectacle lens are The contact angle may not match, but even in such a case, the washer can be elastically deformed to absorb the angle deviation, and the connecting piece is fixedly screwed to the eyeglass lens stably. be able to.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall view of frameless eyeglasses 30 assembled as a front contact type, and FIG. 5 is an overall view of edgeless eyeglasses 50 assembled as a rear contact type. These are assembled with the same parts.
[0020]
These edgeless eyeglasses 30, 50 are screwed to left and right eyeglass lenses 31A, 31B, bridges 32, 52 connecting the left and right eyeglass lenses 31A, 31B, and side ends of the left and right eyeglass lenses 31A, 31B. And the temples 4 hinged to the yolos 33, 53. The pads are not shown.
[0021]
The tongues 33, 53 and the bridges 32, 52 are provided with tongues (tongue pieces) 33a, 53a, 32a, 52a. These tongues 33a, 53a, 32a, 52a are provided on the front or back of the spectacle lenses 31A, 31B. , Bolts 35, nuts 36, and elastic resin washers (thickness 0.7 mm to 0.8 mm) 37.
[0022]
The yoroi 33 and 53 in this case are configured by being divided into two members and then united. FIG. 2 and FIG. 6 show the configuration of metal yolos 33 and 53 used in the frameless eyeglasses 30 and 50. These yolos 33 and 53 are divided into a yoyo body 41 on the side connecting the temple 4 (see FIG. 1) and a connecting piece 42 on the side screwed to the spectacle lenses 31A and 31B.
[0023]
The yoroi main body 41 has an L-shaped bent receiving plate portion 41b at the tip of the rod-shaped portion 41a. The receiving plate portion 41b has a triangular shape in which the width increases as it goes forward, and the distal end surface serves as an edge contact portion 41c that comes into contact with the edge (peripheral surface of the side end) of the spectacle lenses 31A and 31B. I have. The edge 41c is provided with a groove 41d cut in the front-rear direction, and a screw hole 41e is provided on the bottom surface of the groove 41d. The reason why the shape of the receiving plate portion 41b is formed in a triangular shape that expands as it goes forward is to form a groove 41d having a predetermined width and to secure a wide edge contact portion 41c even when the groove 41d is formed. . The bottom of the groove 41d is cut diagonally. This is because the tongue piece (velo) of the connecting piece 42 is attached so as to follow the convex or concave lens curve, and when the connecting piece 42 is connected to the yolo main body 41, either of the front contact and the rear contact described later. This is also to ensure that the edge contact portion 41c of the main body 41 comes into contact with the edge of the lens without being inclined. The reason will be described in detail later. Further, a hinge connecting portion 41f for connecting to the temple 4 is provided on the base end side of the rod portion 41a.
[0024]
On the other hand, the connecting piece 42 includes a tongue piece 42e (corresponding to the tongue 33a) selectively screwed to the front or rear face of the spectacle lenses 31A and 31B, and a base piece 42a orthogonal to the tongue piece 42e. It is formed in an L-shape to be integrated. Two protrusions 42b are provided on the bottom surface of the base piece 42a so as to engage with the side surface of the receiving plate part 41b to prevent the connection piece 42 from moving in the longitudinal direction of the groove 41d. The flat portion between the two protrusions 42b is a contact portion 42d that contacts the bottom surface of the groove 41d. The base piece 42 is provided with a through hole 42c with a counterbore through which the screw 43 is inserted. The tongue piece 42e is provided with a screw insertion hole 42f through which a bolt 35 for fixing to the spectacle lenses 31A and 31B is passed.
[0025]
In the front-contact type yello 33 shown in FIG. 2, the tongue piece 42 e is positioned on the front side, and the base piece 42 a of the L-shaped connecting piece 42 is fitted into the groove 41 d of the yolo body 41 and fixed with the screw 43. It consists of. 6, the tongue piece 42e is located on the rear side, and the base piece 42a of the L-shaped connecting piece 42 is fitted into the groove 41d of the yoke body 41 and fixed with the screw 43. It is constituted by. In this case, as described above, the bottom surface of the groove 41d of the main body 41 is cut obliquely. This is because the tongue piece (velo) of the connecting piece 42 is attached so as to follow the convex or concave lens curve, and when the connecting piece 42 is connected to the yolo main body 41, the front piece and the rear piece can be used. This is because the edge contact portion 41c of the main body 41 comes into contact with the edge of the lens without being inclined. That is, when the tongue is attached to the convex or concave surface of the front or rear surface of the lens so as to follow the lens curve, the bottom surface of the contact portion 42d is necessarily inclined. Therefore, when the contact portion 42d is connected to the bottom surface of the groove 41d that is not cut obliquely, the contact portion 42d is inclined, so that the edge contact portion 41c of the main body 41 is inevitably attached to the edge of the edge. It will be contacted diagonally. This is to alleviate this. With this oblique cut, it is possible to substantially avoid oblique contact of the edge abutting portion 41c with the edge of the edge when the tongue piece is attached so as to follow the lens curve in both the front contact and the rear contact. The oblique cut increases the contact area, which is advantageous in connection strength.
[0026]
As described above, by dividing the yoke into two parts, the yoke main body 41 and the connection piece 42, the attachment direction of the connection piece 42 with respect to the yoke main body 41 is made different. 53 can be easily prepared at the store. In other words, after a certain frame is selected, the frame type can be changed from front-end to rear-end and from rear-end to front-end. Therefore, the preference of the wearer and the idea of the seller, or the lens information including the lens thickness of the spectacle lenses 31A and 31B and the curved surface shape of the front and back surfaces of the lenses, the prescription value including the power, the PD value, or the amount of bending, the frame shape The frameless glasses 30 of the front-contact type and the frameless glasses 50 of the rear-contact type can be appropriately assembled in consideration of frame information including the above.
[0027]
At the time of assembling, in the case of a front-applying type, first, a front-applying type oyster 33 as shown in FIG. 2 is prepared, and its tongue 33a is bolted to the front of the spectacle lens 31A as shown in FIG. , Nut 36 and washer 37. At that time, the edge 41c of the eyepiece 33 is attached to the edge (peripheral surface) of the spectacle lens 31A in contact with the edge.
[0028]
In the case of the back-applying type, first, a back-applying type oyster 53 as shown in FIG. 6 is prepared, and its tongue 53a is bolted to the front surface of the spectacle lens 31A as shown in FIG. 36, fix using a washer 37. At that time, the edge contact portion 41c of the yoroi 53 is attached in contact with the edge (peripheral surface) of the spectacle lens 31A.
[0029]
Similarly, the bridges 32 and 52 are similarly divided into a central bridge main body 61 and connecting pieces 62 at both ends screwed to the spectacle lens 31A, and the attachment directions of the connecting pieces 62 to the bridge main body 61 are made different. Then, two types of bridges 32 and 52 of a front contact type and a rear contact type are selectively prepared. In this case, the connection between the bridge main body 61 and the connecting piece 62 is made by forming a groove in the bridge main body 61 and fitting the connecting piece 62 into the groove and screwing it in the same manner as in the case of the yoroi 33 and 53. Just fine.
[0030]
Then, in the case of the front contact type, as shown in FIG. 3, the lens is fixed to the front surface of the spectacle lens 31A using a bolt 35, a nut 36, and a washer 37. At that time, the edge contact portion 61c of the bridge 32 is attached to the edge (peripheral surface) of the spectacle lens 31A in contact with the edge. Similarly, in the case of the rear contact type, as shown in FIG. 7, the lens is fixed to the rear surface of the spectacle lens 31A using bolts 35, nuts 36, and washers 37. At that time, the edge contact portion 61c of the bridge 52 is attached to the edge (peripheral surface) of the spectacle lens 31A by being brought into contact therewith.
[0031]
Note that the combination of the yoroi 33, 53 and the bridges 32, 52 may be appropriately changed. FIG. 4 shows an example in which a front contact type yoke 33 and a rear contact type bridge 52 are combined, and FIG. 8 shows an example in which a rear contact type yoloy 53 and a front contact type bridge 32 are combined. .
[0032]
In any case, if the connecting piece 42 is coupled to the yoro main body 41 on the front contact side, the yoro 33 can be attached to the spectacle lenses 31A and 31B in a front contact mode, and the connecting piece 42 can be attached to the yolo main body 41. Can be attached to the spectacle lenses 31A and 31B in a back-applied manner. Further, if the connecting piece 62 is connected to the bridge body 61 on the front contact side, the bridge 32 can be attached to the spectacle lenses 31A and 31B in a front contact mode, and the connecting piece 62 can be attached to the bridge body 61 rearward. By connecting to the contact side, the bridge 52 can be attached to the spectacle lenses 31A and 31B in a rear contact mode.
[0033]
In addition, in a state where the edge contact portions 41c of the yoroi 33 and 53 are in contact with the spectacle lenses 31A and 31B, the screwed portions of the connecting pieces 42 cannot be seen from the outside, so that the external design is not spoiled.
[0034]
Further, since the washer 37 made of an elastic material is interposed between the tongue pieces 33a, 53a of the yoroi 33, 53 and the spectacle lenses 31A, 31B, the contact angle between the tongue pieces 33a, 53a and the spectacle lenses 31A, 31B. Even if they do not fit together, the washer 37 can be elastically deformed to absorb the angular deviation, and the yoro 33, 53 can be stably fastened to the spectacle lenses 31A, 31B with bolts 35 and nuts 36. Can be.
[0035]
For example, when the spectacle lenses 31A and 31B are thin, the bolt 35 may be inserted with the threading direction set perpendicular to the convex surface of the spectacle lenses 31A and 31B, but the edge frequency increases and the edge thickness increases. In this case, as shown in FIGS. 9 and 10, the bolt 35 is often passed in parallel to the edge of the spectacle lens 71A, and in such a case, the contact angles of the tongue pieces 33a and 53a and the spectacle lens 71A do not match. Even in such a case, even in such a case, since the washer 37 is elastically deformed, the deviation in the angle can be absorbed, so that the yoroi 33 and 53 can be stably fixed to the spectacle lens 71A with screws. Can be.
[0036]
Note that, in the above description, a case has been described in which both the yoroi 33 and 53 and the bridges 32 and 52 are of a two-split type so that the front and rear abutment types can be selected as appropriate. The bridge may be of a split type, and the bridge may be of the same integral type as before. Conversely, only the bridges 32 and 52 may be of a two-part type, and the yoroi may be of the same integral type as before.
[0037]
【The invention's effect】
As described above, according to the first aspect of the invention, if the connecting piece is connected to the front body side with respect to the body body, the eyeglass lens can be attached to the spectacle lens in a front body manner. If the connecting piece is connected to the back support side, the eyepiece lens can be attached to the spectacle lens in a back support mode. Therefore, when selecting eyeglasses at the store, after selecting the eyeglass lens and the frame, it is possible to select whether to make the eyepiece “front-applied” or “back-applied” to the eyeglass lens, The merits of the application can be fully utilized, and the intentions of the wearer and the seller can be reflected at the point of sale.
[0038]
According to the second aspect of the present invention, since the screwing portion of the connecting piece with respect to the main body is hidden from the outside in the assembled state, the appearance design is not impaired by dividing into two parts.
[0039]
According to the third aspect of the present invention, by connecting the connecting piece to the bridge body on the front contact side, the bridge can be attached to the spectacle lens in a front contact mode, and the connecting piece can be applied to the bridge body later. If it is connected to the side, the bridge can be attached to the spectacle lens in a back-up manner. Therefore, when selecting eyeglasses at the store, after selecting the eyeglass lens and the frame, it is possible to select whether the bridge should be “front-applied” or “back-applied” for the eyeglass lens, The merits of the application can be fully utilized, and the intentions of the wearer and the seller can be reflected at the point of sale.
[0040]
According to the invention of claim 4, since a washer made of an elastic material is interposed between the connecting piece and the spectacle lens, even if the contact angle between the connecting piece and the spectacle lens does not match, the angle deviation is reduced. The washer can be absorbed by being elastically deformed, and the connecting piece can be stably fixed to the spectacle lens by screwing.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of frameless eyeglasses 30 when an embodiment of the present invention is assembled into a front-contact type, where (a) is a front view, (b) is a side view, and (c) is (a) view. FIG. 3 is a view of the Ic portion of FIG.
FIGS. 2A and 2B show the yoke used in the frontless-type frameless glasses, wherein FIG. 2A is an exploded perspective view of the yoke, and FIG.
FIG. 3 is a cross-sectional view showing a fixing structure of a yoke and a bridge in the frontless type frameless glasses.
FIG. 4 is a cross-sectional view showing an example in which only a bridge is changed to a rear-contact type with respect to FIG. 3;
FIGS. 5A and 5B are overall configuration diagrams of the frameless eyeglasses 50 when the embodiment of the present invention is assembled into a back-contact type, where FIG. 5A is a front view, FIG. 5B is a side view, and FIG. FIG. 5 is a view of the Vc portion of FIG.
FIGS. 6A and 6B show the yoke used in the rear-contact type frameless eyeglasses, wherein FIG. 6A is an exploded perspective view of the yoke, and FIG.
FIG. 7 is a cross-sectional view showing a fixing structure of a yoke and a bridge in the rear-contact type frameless glasses.
FIG. 8 is a cross-sectional view showing an example in which only a bridge is changed to a front contact type with respect to FIG.
FIG. 9 is a view for explaining the role of a washer when the curve of the lens is large in the front-contact type frameless glasses.
FIG. 10 is a view for explaining the role of a washer when the curve of the lens is large in the rear-contact type frameless glasses.
11A and 11B are overall configuration diagrams showing a conventional example of front-edge-less frameless eyeglasses, where FIG. 11A is a front view, FIG. 11B is a side view, and FIG. 11C is a top view of the XIc portion in FIG. FIG.
12A and 12B are overall configuration diagrams showing a conventional example of frameless eyeglasses of a back contact type, wherein FIG. 12A is a front view, FIG. 12B is a side view, and FIG. 12C is a top view of the XIIc part in FIG. FIG.
[Explanation of symbols]
4 Temples 31A, 31B, 71A Eyeglass lenses 32, 52 Bridge 33 Yoroi 32a, 33a, 52a, 53a Tongue piece (velo)
35 bolt 36 nut 37 washer 41 gutter body 41c edge 41d groove 42 connecting piece 42a base piece 42e tongue piece 43 screw 61 bridge body 62 connecting piece

Claims (4)

Left and right spectacle lenses, a bridge that connects these left and right spectacle lenses, a yolo screwed to a side end portion of the left and right spectacle lenses, and a frameless spectacle including a temple connected to the yolo,
The yolo is divided into a yolo body on the side connecting the temple and a connecting piece screwed on the eyeglass lens,
The connecting body is provided on the main body of the eyepiece with an edge contacting portion that comes into contact with the peripheral surface of the spectacle lens, and a groove in the front-rear direction is provided in the edge contacting portion. It is possible to select and connect one of two directions: the direction of the connecting piece when performing pre-applying by screwing the piece to the front of the spectacle lens, and the direction of the connecting piece when performing the post-applying by screwing to the back of the spectacle lens rimless spectacles, characterized in that the the. The connecting piece is formed in an L-shape integrally having a tongue piece selectively screwed to the front surface or the rear surface of the spectacle lens and a base piece orthogonal to the tongue piece, and the base of the L-shaped connecting piece is formed. 2. The rimless eyeglasses according to claim 1, wherein the piece is fitted into the groove of the main body and screwed to integrate the main body with the connecting piece. Left and right spectacle lenses, a bridge that connects these left and right spectacle lenses, and frameless spectacles provided with a temple connected to a side end portion of the left and right spectacle lenses via a yoroi,
The bridge is divided into a central bridge body and connecting pieces at both ends screwed to the spectacle lens,
The bridge body is provided with an edge contacting portion that comes into contact with the peripheral surface of the spectacle lens, a groove in the front-rear direction is provided in the edge contacting portion, and the connecting piece is fitted into the groove to be connected to the bridge. It is possible to select and connect one of two directions: the direction of the connecting piece when performing pre-applying by screwing the piece to the front of the spectacle lens, and the direction of the connecting piece when performing the post-applying by screwing to the back of the spectacle lens rimless spectacles, characterized in that the the. The frameless eyeglasses according to any one of claims 1 to 3, wherein a washer made of an elastic material is inserted between the connecting piece and the spectacle lens to screw the connecting piece and the spectacle lens.

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