JP2006189719A - Rimless spectacles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rimless spectacles, with which the opening angles of a bridge and temples are easily adjustable and the damages on the hard coat surfaces of lenses can be prevented. <P>SOLUTION: Hard coating is removed from the surface of a spectacle lens, by cutting off a portion thereof near a through-hole. Fixing members consisting of a pipe nut, a stop pipe, a washer and a bolt are used and the stop pipe is made to abut against the lens surface of the cut-off portion. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a rimless spectacle of a metal frame, and relates to a method of fixing a frame constituent member to a spectacle lens using a fixing member.

  A general metal frame rimless eyeglass will be described with reference to the drawings. FIG. 8 shows the entire rimless eyeglass 11, and the rimless eyeglass 11 is composed of left and right eyeglass lenses 12 and eyeglass frames 13. The spectacle frame 13 includes a bridge 14 that spans between the left and right spectacle lenses 12, and an armor 15 that is coupled to each spectacle lens 12 and to which a temple 17 is connected via a hinge 16.

  The bridge 14 and the armor 15 are frame constituent members coupled to the spectacle lens 12, and are fixed to the spectacle lens 12 using a fixing member 18. There are various types of fixing members 18, but when they are combined using a single screw, the position of the frame component member and the spectacle lens 12 is fixed so that they do not rotate around the screw. Means are needed.

  As an example of a fastening method provided with such a fixing means, there is a method in which a projection is provided on a portion of the frame constituent member that comes into contact with the spectacle lens, and the projection is bitten into the lens surface to fasten (for example, (See Patent Document 1).

  9 and 10 show a fastening method described in Patent Document 1, and shows a case where the armor 15 which is one of the frame constituent members 131 is attached to the through hole 125 of the spectacle lens 12. A protrusion 152 is provided in the vicinity of the hole 151 of the armor 15, and the fixing member 18 includes a male screw 181, a flat washer 183, a spring washer 184, and a female screw 185. Therefore, by screwing the male and female screws 181 and 185, the projection 152 of the armor 15 bites into the surface of the spectacle lens 12, and the armor 15 is fixed to the spectacle lens 12.

  However, in such a fastening method, the frame constituent member and the lens surface are brought into close contact with each other. Therefore, for example, when an armor is attached to a spectacle lens, the angle at which the temple is attached changes depending on the curvature of the outer surface of the spectacle lens. This will be described with reference to FIGS.

  When the armor 15 which is a frame constituent member is attached to the spectacle lens 12, FIG. 11 shows a case where the surface of the spectacle lens 12 has a large curvature of 4C to 6C and the piercing angle (θ) of the spectacle lens 12 is large. On the other hand, FIG. 12 shows a case where the surface of the spectacle lens 12 is flat and the degree of curvature is small, and the piercing angle (θ) of the spectacle lens 12 is small.

  That is, when a person who has used a spectacle lens with a high degree of curvature (FIG. 11) applies the spectacle frame to a spectacle lens with a low degree of curvature (FIG. 12), the temple as shown in FIG. The mounting angle of will open greatly. Such a phenomenon is a problem that occurs in the same manner even when a bridge is attached to a spectacle lens. Therefore, the conventional rimless glasses have a problem that it is difficult to adjust the opening angle of the bridge and the temple.

  As shown in FIG. 13, the normal spectacle lens 12 has a coating layer such as a hard coat 122 and a multi-coat 123 formed on the surface of a lens body 121. The hard coat 122 is a layer formed to prevent the lens surface from being scratched, and the multi-coat 123 is a layer formed to suppress reflection and increase the transmittance.

A hard coat is a very hard layer, but is a brittle and fragile layer.
Therefore, when the spectacle lens and the spectacle frame are coupled, as described in Patent Document 1, when the frame constituent member is tightly attached to the lens surface and tightened, or when the protrusion is in direct contact with the lens surface. There is a problem that cracks occur in the hard coat surface.
JP-A-10-186285

  The problem to be solved is to provide rimless spectacles that can easily adjust the opening angle of the bridge or temple, and the hard part formed on the lens surface at the joint between the spectacle lens and the frame constituent member. An object of the present invention is to provide rimless glasses that do not cause cracks on the coat surface.

  In order to solve the above-mentioned problem, the rimless spectacles according to claim 1 of the present invention include a spectacle lens having a hard coat on the surface of a lens body and a metal frame, and the penetrating hole formed in the spectacle lens. In the rimless eyeglasses in which the frame constituting member of the frame is fixed using a fixing member in the hole, the surface of the eyeglass lens is partially cut in the vicinity of the through hole, and the hard coat is removed. ing.

The rimless spectacles according to claim 2 of the present invention employ the means that the lens surface of the cut portion is orthogonal to the axis of the through hole in the rimless spectacles according to claim 1. .
Furthermore, in the rimless glasses according to claim 3 of the present invention, in the rimless glasses according to claim 1 or 2, means in which the frame constituent member is a bridge is employed. And the rimless spectacles concerning Claim 4 of this invention are the rimless spectacles in any one of Claims 1 thru | or 3. The means whose said frame structural member is an armor is employ | adopted.

The rimless eyeglasses according to claim 5 of the present invention is the rimless eyeglasses according to any one of claims 1 to 4, wherein the fixing member employs means comprising a pipe nut, a stop pipe, a washer, and a bolt. Yes.
Furthermore, the rimless spectacles according to claim 6 of the present invention are the rimless spectacles according to claim 5, wherein the stop pipe employs means for abutting against the lens surface of the cut portion.

  In the rimless spectacles of the present invention, the surface of the spectacle lens is partially cut in the vicinity of the through hole. Since the cut lens surface can be formed independently of the original surface, the through hole can also be formed independently of the original surface. Therefore, regardless of the degree of curvature of the outer surface of the spectacle lens, it is possible to always provide a through hole at a constant drilling angle (θ), and the opening angle of the bridge and temple can be easily adjusted.

  In the rimless spectacles of the present invention, the surface of the spectacle lens is partially cut in the vicinity of the through hole and the hard coat is removed, so that the frame constituent member is fixed to the spectacle lens using a fixing member. In this case, the hard coat can be tightened without applying force. Therefore, there is no problem that cracks occur on the hard coat surface.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the rimless eyeglasses 1 of the present invention are composed of left and right eyeglass lenses 2 and eyeglass frames 3. The spectacle frame 3 includes a bridge 4 that spans between the right and left spectacle lenses 2 and an armor 5 that is coupled to each spectacle lens 2 and to which a temple 7 is coupled via a hinge 6.
The bridge 4 and the armor 5 are frame components that are coupled to the spectacle lens 2, and are coupled to the spectacle lens 2 using the fixing member 8.

  As shown in FIG. 2, the right and left eyeglass lenses 2 are provided with a hard coat 22 for preventing the surface of the lens body 21 from being scratched. Usually, the reflection is further suppressed to increase the transmittance. The multi-coat 23 is formed. In this case, the lens surface 24 of the spectacle lens is formed by the surface of the multi-coat 23.

  The eyeglass lens 2 is provided with a through hole 25 for coupling a frame constituent member. In the present invention, as shown in FIG. 3, the lens surface 24 is partially cut in the vicinity of the through hole 25 and the hard coat 22 is formed. Has been removed. As a result, a new lens surface 27 is formed by the lens body 21 in the cutting portion 26.

  The newly formed lens surface 27 need not be parallel to the original lens surface 24 and can be arbitrarily formed. However, the lens surface 27 is preferably a surface orthogonal to the axis of the through hole 25. This is because it can be satisfactorily and satisfactorily fixed when tightened with a fixing member as will be described later.

The fixing member 8 for fixing the frame constituting member 31 to the spectacle lens 2 is preferably constituted by a pipe nut 81, a stop pipe 82, a washer 83, and a bolt 84, as shown in FIGS. 4 and 5, for example.
The method of fixing the frame constituent member 31 to the spectacle lens 2 is as follows. After the stop pipe 82 is locked to the cutting portion 26 of the spectacle lens 2, the entire fixing member 8 is assembled together with the frame constituent member 31, and the pipe nut 81 and The bolt 84 is screwed and fixed.

  The stop pipe 82 locked to the cutting part 26 of the spectacle lens 2 is brought into contact with the lens surface 27 formed on the cutting part 26 and is tightened. The frame component 31 can be fixed so as not to rotate with respect to the lens 2.

  With the configuration as described above, the rimless spectacles 1 of the present invention can adjust the opening angle of the bridge or temple regardless of the curvature of the outer surface of the spectacle lens 2. This is because the through hole 25 and the cutting portion 26 can be arbitrarily formed regardless of the outer surface of the spectacle lens 2, and therefore the drilling angle (θ) of the through hole 25 can be freely set.

  That is, even when the surface of the spectacle lens 2 has a large curvature of 4C to 6C as shown in FIG. 6, even when the surface of the spectacle lens 2 is flat and has a small curvature as shown in FIG. This is because the through hole 25 and the deletion portion 26 can be formed so that the drilling angle (θ) of the through hole 25 is constant.

  As can be understood from FIG. 5, the rimless spectacles 1 of the present invention can fasten the fixing member 8 without applying a force to the hard coat 22 when fixing the frame constituent member 31 to the spectacle lens 2. Therefore, the problem of cracks on the hard coat surface does not occur.

  For comparison, FIG. 14 shows a case where similar fastening is performed without providing the cutting portion 26 that is a feature of the present invention. In the figure, the spectacle lens 12 is similarly formed by forming a hard coat 122 and a multi-coat 123 on the surface of the lens body 121, but the lens surface 124 is not cut in the vicinity of the through hole 125, There is also a hard coat 122 in the vicinity.

  Then, when the frame constituent member 131 is fixed using the fixing member shown in FIG. 4, the stop pipe 182 comes into contact with the lens surface 124 where the hard coat 122 exists. Accordingly, a strong force is applied to the hard coat 122 when the fixing member is tightened, and a crack 127 is generated on the hard coat surface.

  As described above in detail, the feature of the present invention in which the hard coat is removed by partially cutting the surface of the spectacle lens in the vicinity of the through hole is the effect that the opening angle of the bridge and the temple can be easily adjusted, and the hard coat An effect of preventing the spectacle lens from being damaged by the crack of the surface can be exhibited.

It is a whole perspective view which shows an example of the rimless spectacles of this invention. It is sectional drawing which shows an example of the spectacle lens used by this invention. It is sectional drawing which shows an example of the spectacle lens of this invention. It is a perspective view which shows an example of the fixing member of this invention. It is sectional drawing which illustrates the relationship between the spectacle lens of this invention, and a fixing member. It is a fragmentary top view which illustrates the attachment relationship of the spectacle lens of this invention, and a frame structural member. It is a fragmentary top view which illustrates the attachment relationship of the spectacle lens of this invention, and a frame structural member. It is a whole perspective view which shows an example of general rimless spectacles. It is a perspective view which shows an example of the conventional fixing member. It is sectional drawing which illustrates the relationship between the conventional spectacle lens and a fixing member. It is a partial top view which illustrates the attachment relation of the conventional spectacle lens and a frame structural member. It is a partial top view which illustrates the attachment relation of the conventional spectacle lens and a frame structural member. It is sectional drawing which shows an example of the conventional spectacle lens. It is sectional drawing which illustrates the relationship between the conventional spectacle lens and a fixing member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Rimless eyeglasses 2,12 Eyeglass lens 3,13 Eyeglass frame 4,14 Bridge 5,15 Armor 6,16 Hinge 7,17 Temple 8,18 Fixing member 21,121 Lens body 22,122 Hard coat 23,123 Multi Coat 24, 124 Lens surface 25, 125 Through hole 26 Cutting part 27 Lens surface 31, 131 Frame component 81 Pipe nut 82, 182 Stopping pipe 83 Washer 84 Bolt 127 Crack 151 Hole 152 Protruding part 181 Male thread 183 Plain washer 184 Spring washer 185 Female thread θ Drilling angle

Claims (6)

In rimless eyeglasses comprising a spectacle lens and a metal frame with a hard coat on the surface of the lens body, and fixing the frame constituent member of the frame using a fixing member in a through hole formed in the spectacle lens,
Rimless spectacles characterized in that the surface of the spectacle lens is partly cut in the vicinity of the through hole and the hard coat is removed.   The rimless eyeglasses according to claim 1, wherein the lens surface of the cut portion is orthogonal to the axis of the through hole.   The rimless glasses according to claim 1 or 2, wherein the frame constituent member is a bridge.   The rimless glasses according to any one of claims 1 to 3, wherein the frame constituent member is an armor.   The rimless glasses according to any one of claims 1 to 4, wherein the fixing member includes a pipe nut, a stop pipe, a washer, and a bolt.   The rimless eyeglasses according to claim 5, wherein the stop pipe is in contact with the lens surface of the cut portion.

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