JPS6224769B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an eyeglass frame, and more particularly to an eyeglass frame that is assembled into an upper groove portion and a lower groove portion separately.

The basic structure of eyeglass frames is that a pair of lens frames on both sides are connected at the peaks, and a blow hole is provided on the outer periphery of both lens frames to attach the temples with a hinge.In the case of metal frames, the lens frame ,
Connections to mating parts such as the crest and blow tip are performed by brazing.

However, if the brazed parts are close to each other, heat may spread to the previously brazed part during the brazing process, or the solder may separate due to differences in temperature characteristics depending on the material of the silver solder. There is,
There is a problem in that the frame is extremely difficult to assemble.

In addition, titanium is the most suitable material for metal frames because it is lightweight and has excellent corrosion resistance, elasticity, and strength, but titanium cannot be easily brazed in the atmosphere, which requires expensive capital investment. Therefore, there is a problem that the manufacturing cost of the frame increases.

In addition, there has been a trend in recent years for eyeglass frames to be slender, so as shown in FIG. 31 is fitted into the structure.

By the way, in the above structure, the lens 32
Since there is no protection for the edges 32a and 32b, there is a problem that the edges will break or chip when they collide with other objects.Furthermore, if the wire is heavy like a glass lens and the wire 31 is made of synthetic resin, When the temperature is high, it may stretch and the lens may come off. Furthermore, in the case of metal wires, sweat and dust accumulate in the mating parts and oxidize the wires.

This invention was made in view of the above points, and it is an object of the present invention to provide an eyeglass frame in which titanium can be used without the need for special equipment, and in which the edges of the lenses can be reliably protected. It is a purpose.

The structure of the present invention is such that the frame is separated into an upper groove portion and a lower groove portion, and a material based on titanium is used for the upper groove portion.

Hereinafter, this invention will be described with reference to FIGS. 2 to 10 of the accompanying drawings.
Description will be given based on the embodiment shown in the figures.

As shown in FIG. 2, the eyeglass frame of the present invention is composed of an upper groove part 1 and a pair of lower groove parts 2. , 4, and one hinge member 5 is connected to the end portions of the hinges.

The upper groove part 1 is made of a continuous metal wire, round wire, plate material, or square material, and the peak part 3, eyebrows 4, 4, and one member 5 of the hinge are integrated by pressing, cutting, and drilling. It forms the eyebrows 4, 4.
A fitting groove 7 for the lens 6 is provided on the inner periphery of the lens 6, and an uneven pattern 8 may be provided on the front and rear surfaces and the upper surface as shown in FIG.

The pair of lower grooves 2, 2 are formed in a half-frame body circumscribing the outer periphery of the lower half of the lens, and opposing blow tips 9, 10 protruding outward are provided at both ends thereof, either integrally or by welding. .

The lower groove portions 2, 2 are also formed by pressing, cutting, or drilling using a single metal wire, plate, or square material, and a lens fitting groove 11 is provided on the inner peripheral surface thereof.

The connection of the lower groove parts 2 and 2 to the upper groove part 1 is done mechanically, eliminating the need for brazing. This overlapping portion is fixed by tightening screws 12, and the lens 6 is held by the eyebrow portion 4 and the lower groove portion 2.

In order to improve the bonding strength between the upper groove part 1 and the lower groove part 2 and to stably hold the lens, in the case shown in the figure, the blow tips 9 and 10 are fitted to the lower surface of the crest 3 and the lower surface of one member 5 of the hinge. A matching recess 13 is provided, and as shown in FIG. 4, the tip of the screw 9 that connects the crest 3 and the blow tip 9 is caulked with a punch or the like to prevent loosening.

Further, the fitting portion between the recess 13 and the blow tip 9 or 10 is provided with a pin 14 on one side and a fitting hole 15 for the bottle 14 on the other side.

Further, in attaching the temple 16 to the upper groove portion 1, the other member 17 of the hinge provided at the end of the temple 16 is connected to the one member 5 forming an endpiece.

The material used to form the upper groove portion 1 includes titanium, a titanium alloy made of a mixture of titanium and other metals,
By using titanium whose outer peripheral surface is coated with an exterior film such as gold plating, and by integrally molding the crest 3, eyebrow 4, and one side member 5 of the hinge, it is possible to eliminate the drawbacks of titanium when brazing.

In addition to using titanium as the base material like the upper groove part 1, the material of the lower groove part 2 may be a single synthetic resin, carbon mixed with short fibers in a synthetic resin, a metal wire, a combination of a metal wire and a synthetic resin, etc. You can choose freely.

FIG. 8 shows a second example of the lower groove part, in which the metal wire 2
1 with a synthetic resin cover 22, and this cover 2
The inner protrusion 23 of No. 2 is fitted into the groove 25 of the lens 24, and protrusions 22a are formed on both sides of the cover 22 to cover both edges 24a and 24b of the lens 24, thereby protecting the edges 24a and 24b. be.

Such a combination of metal wire and synthetic resin has the effect of stopping the elongation of synthetic resin such as nylon.

Furthermore, in a similar cross-sectional shape, if the entire wire is made of carbon as shown in FIG. 9, there will be no problem of elongation and no oxidation will occur unlike with metal wires.

A third example of the lower groove part 2 shown in FIG. 9 is made of a material such as synthetic resin, celluloid, or carbon, and is formed into left and right independent rings that fit around the lens. It is designed to be connected by screws or adhesive.

The frame of the present invention has the above-mentioned structure, and the upper groove part 1 is integrally molded using titanium as a base material, and the lower groove part 2 is made of an appropriate material, and the two are joined by tightening screws, caulking, or adhesive. , the frame is assembled by attaching the temple 16 with a hinge.

As described above, according to the present invention, since it has the above configuration, it has the following effects.

(1) The frame is separated into an upper groove and a lower groove, the upper groove is made of titanium as the base material, and the ridges and eyebrows are integrally formed, so there is no need for brazing when assembling the frame, and titanium can be used instead. The assembled frame can be assembled easily and efficiently.

(2) Since brazing is not required when assembling the frame, titanium, which is difficult to braze, is used as a material, and the frame can be easily constructed without the need for special equipment. The production cost can be significantly reduced.

(3) Since the upper and lower grooves of the frame are separated,
Various models can be produced by changing the lower groove, and even if the upper groove is made of titanium, many variations can be made by applying surface treatments such as coloring, plating, or cloisonné to the lower groove.

(4) Since brazing is no longer required when assembling the frame, the assembly strength is greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing the relationship between a conventional frame and a lens, FIG. 2 is an exploded perspective view of a frame according to the present invention, FIG. 4 and 5 are exploded vertical cross-sectional views of the joint parts, Figure 6 is an exploded perspective view showing the hinge part of the frame, Figure 7 is a vertical cross-sectional view showing the eyebrows of the frame, and Figures 8 and 5 are 9 are longitudinal sectional views of different examples showing the relationship between the frame and the lens, and FIG. 10 is an exploded perspective view showing another example of the upper and lower grooves of the frame. 1... Upper groove part, 2... Lower groove part, 3... Mountain part, 4
...eyebrow, 5...one member of the hinge, 9, 10...blow tip, 12...screw, 13...recess, 14...
Pin, 15... Fitting hole, 16... Temple, 17
...The other member of the hinge.

Claims (1)

[Scope of Claims] 1. The eyeglass frame is composed of an upper groove part and a lower groove part separated into upper and lower parts, the upper groove part is formed using titanium as a base material, and this upper groove part connects eyebrow parts to both ends of the ridge part. Eyeglass frames that are integrally molded. 2. The eyeglass frame according to claim 1, wherein the upper groove portion is formed of titanium, a titanium alloy, or a titanium surface coated with an exterior film.