JPH0132023Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an eyeglass frame made of thermosetting resin, and particularly relates to a temple and an ear hook thereof.

[Background of the idea]

Traditionally, synthetic resin eyeglass frames are
Eyeglass frames made of thermoplastic resin are known, but this thermoplastic resin has drawbacks such as poor chemical resistance and a soft surface that is easily scratched. In order to
It has been proposed to form eyeglass frames using thermosetting resins.

However, eyeglass frames made only of thermosetting resin have a tendency to return to their original shape when the thermosetting resin is heated to a temperature above its softening point, resulting in deformed shapes. Therefore, the temple and its ear hook should be made to have sufficient strength by improving the springiness and tightness of the temple and its ear hook.
In order to prevent deformation, the temples and their ear hooks have to be thick, which imposes restrictions on shape and size settings, and has the disadvantage of being subject to significant design restrictions.

[Purpose of invention]

An object of the present invention is to eliminate the drawbacks of the above-mentioned conventional examples and to provide an eyeglass frame that has a high degree of freedom in setting the shape and dimensions of the temples and ear hooks and allows for diversification of designs.

[Summary of the idea]

In order to achieve the above-mentioned object, the present invention is characterized in that a core bar made of metal wire is covered with a reinforcing member made of reinforcing fibers and embedded in a thermosetting resin to form a temple.

[Example of idea]

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a perspective view of the eyeglass frame of this embodiment, which is composed of a front frame 1 and temples 2.
are rotatably connected by a hinge 3. The front frame 1 is made of thermoplastic resin or thermosetting resin and is integrally formed with the pad 4 and the bearing part 3a of the hinge 3, and the temple 2 is integrally formed with the insertion part 3b of the hinge 3. , this insertion part 3b
One end portion on the opposite side is bent to form an ear hook portion 5.

This temple 2 is made up of a core bar 6, a reinforcing member 7, and a thermosetting resin 7, as shown in FIG. This core bar 6 is made of a metal wire made of titanium or stainless steel, as shown in FIG. The straight part 6b of the other part is made to have high elasticity, and the reinforcing member 7 is made of reinforcing fiber such as aramid fiber or glass fiber as shown in Fig. 3. It is formed into a bag shape into which the core metal 6 can be inserted, as shown in FIG. Then, the core metal 6 is covered with the reinforcing member 7, and then the reinforcing member 7
is embedded in a thermosetting resin 8, and the temple 2 is hardened and molded.

With this configuration, the core bar 6 increases the strength of the temple 2 and the ear hook part 5, and the spring property of the core bar 6 improves the spring property of the temple 2, making it easy to tighten when worn. Even if thermosetting resin is used, it is possible to form the temple 2 and its ear hook portion 5 thinly, and the weight can be reduced. Furthermore, when the ear hook part 5 is heated after molding, the thermosetting resin 8 is prevented from returning to the shape at the time of molding by the core metal 6, and the ear hook part 5 can be shaped into a desired shape. can be kept.

Furthermore, the core metal 6 is work-hardened and heat-treated in advance to make one bent end 6a corresponding to the ear hook part 5 flexible and the other straight part 6b elastic. Even if the core bar 6 is thin, the spring properties necessary for the temple 2 and the fitting properties of the ear hook part 5 are further improved.

Furthermore, by covering the core bar 6 with a reinforcing member 7 made of reinforcing fiber, the strength of the temple 2 and the ear hook part 5 is increased, and the thermosetting resin 8
When molding, the thermosetting resin 8 sufficiently covers and hardens the reinforcing member 7, so that the cored metal 6 is exposed due to the shift in the position of the cored metal 6. This increases the degree of freedom in setting the shapes and dimensions of the temple 2 and the ear hook 5, prevents damage to the appearance, increases the specific strength of the thermosetting resin 8, The ear hook part 5 can be formed to be thin and lightweight. By dyeing the reinforcing member 7, it is possible to create an appearance that is not conventional. Further, since the reinforcing member 7 is formed by knitting it into a bag shape or by winding it in a spiral shape, it is possible to easily deform the ear hook part 5 after molding.

[Effect of idea]

The present invention is as described above, and even if the temples and their ear hooks are made thinner, the temples and ear hooks have excellent springiness and tightness, can increase strength, and have greater flexibility in shape and size setting. high,
It is possible to provide an eyeglass frame using a thermosetting resin that can be molded into various designs, has a core bar that is not visible from the outside, and can dye a reinforcing member, giving an unprecedented appearance.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a sectional view of the temple in Fig. 1, Fig. 3a is a plan view of the core metal, and Fig. 3b is a perspective view of a bag-shaped reinforcing member. FIG. 3c is a plan view of a helically wound reinforcing member. 2...Temple, 6...Core metal, 7...Reinforcement member, 8...Thermosetting resin.

Claims (1)

[Scope of utility model registration request] An eyeglass frame characterized in that a core made of metal wire is covered with a reinforcing member made of reinforcing fiber and embedded in a thermosetting resin to form a temple.