JP2002082314A - Lens-fastening mechanism for half-rim spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens-fastening mechanism of half-rim spectacles by constituting the mechanism, in such a manner that the lenses are fastened more surely by exhibiting the intrinsic strength of bands 4 for hangingly supporting the bottom edges of the lenses and which is capable of imparting decorative as well to the spectacles, as if needed. SOLUTION: Following technical means are adopted: while bands 4, connected to right and left rim bars 2, have anchors 42 and 42 at both ends of wire-shaped parts 41, mounting holes 21 and 21 fittable with the anchors 42 are formed near the arc ends of the respective rim bars 2; the anchors 42 and 42 at both ends of the bands 4 are respectively fitted into the mounting holes 21 and 21 and the wire-shaped parts 41 are fitted into the band grooves 12 of the respective lenses 1, by which the bottom edges are hangingly supported. Accordingly, the anchors disposed at both ends of the hands for hangingly supporting the lenses are inserted into the mounting holes and the bands are extended downwardly, by which the contact of the metallic rim bars with the corners of sewing holes and the flawing of the bands to the resultant cutting off thereof are eliminated and the intrinsic strength of the bands by right can be exhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in half-rim spectacles, and more particularly, to a structure in which a band for suspending and supporting the lower edge of a lens can exhibit its original strength to more securely fix the lens. More particularly, the present invention relates to a lens fixing mechanism of half-rim spectacles capable of providing decorativeness.

[0002]

2. Description of the Related Art Recently, half-rim glasses are used.
Forming a fitting groove on the inner surface of the rim bar, inserting a guide wire into this fitting groove, attaching it, and suspending the lower edge of the lens with a band while interposed in the bevel groove on the upper edge of the lens Is popular because it has a wide field of view, is lightweight, and has a clean design.

As shown in FIG. 3, in the conventional fastening of the lens of the half-rim eyeglasses, sewing holes 23 are provided near both ends of each rim bar 2 and communicate from the inner surface to the outer surface of the rim bar 2.・ 23 ・ 23 ・ 23 are set up two by two, and the linear band 4 is inserted into the other sewing holes 23 ・ 23 of the rim bar 2 with the linear band 4 attached to the band groove 12 at the lower edge of the lens 1 for sewing. What wears | hangs the lens 1 under the rim bar 2 by wearing is often used.

However, when the band is inserted into the sewing holes 23, 23, 23, 23 formed in the vicinity of both arc ends of each rim bar 2 and the lens is suspended and fastened, The band is bent several times at right angles, and a predetermined tension is applied. The band is scratched by hitting the corner of the sewing hole 23 of the rim bar 2 made of metal, and the damage gradually progresses. Had the disadvantage that the band was not able to exhibit its original strength.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the conventional lens fixing mechanism for half-rim spectacles. To provide a lens fixing mechanism for half-rim spectacles, which is configured so that the original strength of the band that suspends the edge is exerted and the lens can be fixed more reliably, and if necessary, decorativeness can be imparted. Technical issues.

[0006]

Means adopted by the present inventor to solve the above problems will be described below with reference to the accompanying drawings.

That is, in the present invention, a lens 1.1 having a bevel groove 11 formed on an upper edge and a band groove 12 formed substantially on a lower edge; A rim bar 2 having a groove 22 formed therein;
The guide wire 3 made of a modified synthetic resin inserted in both the fitting groove 22 on the inner surface of the lens and the bevel groove 11 of the lens 1 in a fitted state.
3; and bands 4.4, which are fitted into the band grooves 12 of the lens 1.1 and hang the two lenses 1.1 at both ends of the rim bar 2.2, respectively. The band 4 connected to the rim bar 2 has anchors at both ends of the linear portion 41.
In the vicinity of the arc end of each rim bar 2, mounting holes 21, 21 to which the anchors 42 can be fitted are formed, and the anchors 42, 42 at both ends of the band 4 are respectively provided with mounting holes 21, 42.
A technical means of fitting the linear portions 41 into the band grooves 12 of each lens 1 and suspending the lower edge is adopted.

According to the present invention, in order to solve the above-mentioned problems, in addition to the above-mentioned means, the band 4 is formed by integrally molding the linear portion 41 and the anchors 42 at both ends with a synthetic resin material. The technical means of doing so was adopted.

Further, in order to solve the above-mentioned problems, the present invention further includes, if necessary, the mounting hole 21 and the anchor 42 in a shape fitting each other, such as a star shape, heart shape, or A technical means of producing a geometrical shape or the like to give a decorative property was adopted.

Further, in order to solve the above-mentioned problems, the present invention provides, in addition to the above means, if necessary,
A technical means of forming a band groove 22b in which the linear portion 41 of the band 4 can be fitted is formed inside the two arc ends.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in more detail with reference to the drawings.

In FIG. 1, a lens indicated by reference numeral 1 is a lens. This lens 1 has a bevel groove 11 formed on an upper edge and a band groove 12 formed on a substantially lower edge.

What is indicated by reference numeral 2 is a rim bar.
The rim bar 2 is made of a superelastic alloy (a nickel / titanium-based metal or nickel silver, but in the present embodiment, β-titanium), and a mounting hole in the vicinity of the arc end where the later-described anchor 42 can be fitted.
21 are formed, and a fitting groove 22 is formed on the inner surface. In the fitting groove 22, an upper edge side of the mounting hole 21 is referred to as a guide groove 22a, and an arc end side thereof is referred to as a band groove 22b. An end piece E for hinge-connecting the ear-hanging temple T is brazed to the outer end, while a bridge B is brazed to the inner end to join the rim bars 2.2 symmetrically.

The reference numeral 3 designates a guide wire, and the guide wire 3 is provided in the guide groove 22a of the rim bar 2.
And a beveled groove 11 of the lens 1.

The one designated by reference numeral 4 is a band, which is composed of a linear portion 41 and anchors formed at both ends thereof.
42 ・ 42. In the present embodiment, the linear portion 41 and the anchors 42 at both ends are integrally molded from nylon, and the anchor 42 is formed in a circular (column) shape.

Thus, the lens fastening mechanism of the present embodiment comprises a pair of left and right upper edges of the lens 1 and the rim bar 2.
And the guide wire 3 is inserted in the guide groove 22a in a fitted state and attached, and the anchors 42 at both ends of the linear portion 41 of the band 4 are formed near the arc ends of the rim bars 2 respectively. The anchors 42 are fitted into the mounting holes 21, and the linear portions 41 are fitted into the band grooves 12 of the lens 1 to suspend and support the lower edge of the lens 1.

Further, of the fitting grooves 22 formed on the inner side surfaces of the rim bars 2, a band groove 22 b is formed on the arc end side with respect to the mounting hole 21, and the linear portion 41 of the band 4 is fitted therein. As a result, the linear portion 41 is not bent and does not rub against the corners of the metal, so that the band is scratched, the damage gradually progresses, and the inconvenience that the band is eventually cut is eliminated. Thus, the original strength of the band can be exhibited.

FIG. 5 shows a modification of the embodiment of the present invention. In this modified example, the anchor 42 of the band 4 is formed in a star shape. By fitting the anchor 42 into the mounting hole 21 formed in the same shape as the anchor 42, the decorativeness can be appealed outward. .

The present invention is generally configured as described above.
The present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the claims. For example, the material used for the rim bar 2 is not limited to β titanium, The band 4 may be formed of a rubber or other synthetic resin material, a nickel-titanium superelastic alloy, or the like, without being limited to nylon. . Also,
The shapes of the mounting hole 21 and the anchor 42 are not limited to a circle or a star, but may be designed and changed to various shapes such as a heart shape or a square shape, and any of them belong to the technical scope of the present invention.

[0020]

As described above in the embodiment, according to the present invention, by inserting the anchors provided at both ends of the band for suspending the lens into the mounting holes and extending the band downward, The band is scratched at the corner of the sewing hole of the rim bar, which is made of aluminum, and the damage is gradually progressed. The band is not cut at the end, and the original strength of the band can be exhibited.

Further, since the length of the band is determined between the anchors provided at both ends, the lens is suspended regardless of the individual difference of the operator by selecting the band according to the shape of the lens. In this case, the tension can be kept constant. Furthermore, since only one attachment hole is required to be opened in the rim bar, the cost can be reduced as compared with the case where two suturing holes are provided, so that the industrial use value is extremely high.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing the structure of an embodiment of the present invention.

FIG. 2 is an enlarged perspective view illustrating a fastening portion of the band according to the embodiment of the present invention.

FIG. 3 is a front view showing a lens fastening mechanism of conventional half-rim glasses.

FIG. 4 is an overall front view showing an embodiment of the present invention.

FIG. 5 is an enlarged perspective view of a fastening portion showing an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 lens 11 bevel groove 12 band groove 2 rim bar 21 mounting hole 22 fitting groove 22a guide groove 22b band groove 23 stitching hole 3 guide wire 4 band 41 linear part 42 anchor T earpiece temple E endpiece B bridge

Claims (4)

[Claims] 1. A bevel groove 11 on an upper edge and a band groove 12 on a substantially lower edge.
And rim bars 2 and 2 which are symmetrically coupled by a bridge B and have a fitting groove 22 formed on the inner surface; and fitting grooves on the inner surface of both rim bars 2. A guide wire made of a deformed synthetic resin interposed in a fitting state in both of the bevel groove and the bevel groove of the lens; a rim bar fitted in the band groove of the lens; And the bands 4 connected to the left and right rim bars 2 are provided with anchors 42 at both ends of the linear portion 41. On the other hand, mounting holes 21 are formed near the arc ends of the rim bars 2 to which the anchors 42 can be fitted. The anchors 42 at both ends of the band 4 are fitted into the mounting holes 21 respectively. And the linear portion 41 is fitted in the band groove 12 of each lens 1 and suspends the lower edge. Lens fastening mechanism half rim spectacle characterized. 2. The lens fastening mechanism for half-rim spectacles according to claim 1, wherein the linear portion 41 and the anchors at both ends are integrally formed of a synthetic resin material to form the band 4. 3. The mounting hole 21 and the anchor 42 have a fitting shape, and are formed into a star shape, a heart shape, a geometric shape, or the like, and are provided with decorativeness. 3. The lens fixing mechanism of the half-rim glasses according to 2. 4. A band 4 is provided inside both ends of the rim bars 2.2.
The lens fixing mechanism for half-rim spectacles according to any one of claims 1 to 3, wherein a band groove 22b into which the linear portion 41 can be fitted is formed.