JPH0583721U - Eyeglass frame - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a spectacle frame that is lightweight and versatile in slender formation and can be manufactured at low cost. [Structure] In a spectacle frame whose front 2 is made of plastic, a top is integrally formed with the tip 3 inside the tip 3, and a tip 6 corresponding to the tip 4 of the tip 3 is provided at the tip of the temple 5. The temple 5 and the tip of the tip are directly connected to the tip 3, and the temple 5 is slidably attached to the front 2 using the hinge screw 7. [Effect] Since the temple and the wisdom are directly connected, a separate member is not required, and the cost is low and it is possible to form a neat design around the wisdom.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lightweight and slender eyeglass frame.

[0002]

[Prior Art]

 Generally, a spectacle frame includes a lens frame for fitting and holding lenses, a front (front frame) formed of a bridge connecting two lenses and a pad for the nose, and a temple for wearing the ears. And a hinge that connects the front with the temple and has an opening and closing function.

Conventional spectacle frames include those using metal for the front and temples and those using plastic. Generally, the proper use of these two materials depends on their own design and shape. Metal was used to form a slender body, and plastic was used to form a thin body.

For example, when plastic is used for the front, conventionally, in order to give sufficient strength to the joint between the front and the temple, it is formed of metal on the tip 72 of the front 71 as shown in FIGS. 7 and 8, for example. The hinge member 73 is attached using the wisdom 72 pipe joint 79 and the setscrew 80, a top 74 is provided at the tip of this hinge member 73, and a top 76 is attached to the tip of the temple 75 and a separate top member 77 is brazed. The temple 75 and the front 71 are connected via the hinge member 73.

[0005]

[Problems to be solved by the device]

 In recent years, it has been desired that the front is made of plastic by taking advantage of the lightness of plastic, and even if it is a metal frame made of metal, the entire body is made slender to provide a neat design. However, when a plastic is adopted for the above-mentioned conventional front, the hinge member is used for the wisdom part and the temple is connected to the hinge member because the hinge member is used for the wisdom part. However, there was a problem that the design did not look neat.

Further, since the separate top member 77 is formed on the temple by brazing or the like, it takes time and effort for brazing at the time of manufacturing, and the brazed portion is easily peeled off, and it is difficult to separate the hinge member and the top member. There is a problem that the body member is required, the number of parts is increased, and the cost is increased.

The present invention is intended to solve the above-mentioned drawbacks of the prior art, and an object thereof is to provide a spectacle frame which is lightweight and versatile in a slim shape and which can be manufactured at low cost. .

[0008]

[Means for Solving the Problems]

 The eyeglass frame of the present invention is an eyeglass frame in which at least the front is made of plastic, and a hinge top is integrally formed with the inside of the wisdom and a tip corresponding to the wisdom hinge is integrally formed at the tip of the temple. It is provided and the temple and Ji are directly connected.

In the spectacle frame, the plastic has a tensile strength of 800 kg / cm ² or more (according to ASTM D-638), a flexural modulus of 25000 kg / cm ² or more (according to ASTM D-790), and a heat deformation temperature of 190 ° C. or more. Those that are thermoplastics (ASTM D-648, under a load of 18.6 kg / cm ² ) are preferred.

The resin preferable as the plastic is one or a mixture of two or more selected from the group consisting of polyetheretherketone, polyethersulfone, polyetherimide and polyallylsulfone, or fiber reinforced. There are resins, etc.

[0011]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. 1 is a perspective view showing an essential part of an example of an eyeglass frame of the present invention, and FIG. 2 is a top view of the eyeglass frame of FIG.

The spectacle frame 1 of the present invention is a spectacle frame whose front 2 is made of plastic as shown in FIG. 1. A top 4 is integrally formed with the tip 3 inside the tip 3, and a tip 3 is attached to the tip of the temple 5. A temple 6 corresponding to 4 is integrally provided, the tip of the temple 5 is directly connected to the tooth 3, and the temple 5 is slidably attached to the front 2 by a hinge screw 7. Is. In the figure, numeral 12 is a decoration provided on the temple 5.

As described above, it is important in the present invention that the temple 5 is directly connected to the tip 3 without using another member such as a hinge member. By forming in this way, it became possible to form the connection part with the temple around Satoshi to a very neat shape.

In the spectacle frame of the present invention, the lens holding frame 9 is usually provided with a lens holding groove 13, and the holding frame 9 has a width in the depth direction of 2 to 4 mm, a thickness of 0.8 to 3 mm, and a lens holding frame. The holding groove 5 is formed to have a depth of about 0.5 mm. The cross-sectional area of the lens holding frame 9 is preferably formed so that the thinnest portion is about 1.5 to 8 mm ² , which is the optimum range in terms of slender design and strength.

The material of the plastic used for the front 2 of the lens frame of the spectacle frame 1 of the present invention includes cellulose resin such as acetyl cellulose, acetyl propionate and celluloid, 6 nylon, 6,6 nylon, Polyamide resins such as aromatic polyamide, polyester resins such as polyethylene terephthalate and polybutylene terephthalate, acrylonitrile / butadiene / styrene copolymerization (ABS) resins, acrylic / styrene copolymerization (AS) resins, high strength polyethylene, polypropylene, poly Thermoplastic resins such as sulfone, polyacetal, polycarbonate, polyallylsulfone, polyetheretherketone, polyetherimide, and polyethersulfone, epoxy resin, polyurethane, phenolic resin, unsaturated polyester, polymer Thermosetting resins such as min resin and polyimide are listed, and so-called synthetic resin is reinforced by adding short fibers such as carbon fiber, glass fiber, potassium titanate whiskers, silicon nitride whiskers, and aramid fiber. Fiber reinforced plastics can also be used.

In the spectacle frame of the present invention, the temple 5 may be a plastic temple using the same material as the front 2, but a metal temple is preferable especially when it is made thin, for example, brass and nickel silver. , Aluminum, titanium, high nickel, stainless steel, nickel alloy, and the like. In particular, in the present invention, since the top is integrally formed at the tip of the temple, it is not necessary to attach a separate top member by brazing, and it is possible to use a material with low brazing property. The advantage is that the range of materials that can be used is wide.

FIG. 3 is an exploded view of main parts showing another example of the eyeglass frame of the present invention. The spectacle frame 1 of the present invention is not particularly limited to the type of wisdom shown in FIG. 1, and any type of wisdom, such as wisdom, riding, half-curly wisdom, musical wisdom, ornamental wisdom can be used. FIG. 3 shows an example of the case in which the blades are formed as split tips, and the tops 41 and 42 are provided inside the blow tips 31 and 32, respectively, and the tips of the temple 5 correspond to the tops 41 and 42. 6 is formed integrally with the temple 5, and the hinges 41, 42 and 6 are slidably fixed by hinge screws 7 to form hinge portions inside the blow blade. Further, the lens holding frame 9 can be closed and opened by inserting the rim lock screw 10 into the screw holes 11 and 12 of the blow tips and tightening or loosening them as shown in the figures. Therefore, the lens can be easily removed and held.

FIG. 4 is a perspective view showing the tip of an example of a temple. The eyeglass frame of the present invention may have a temple 6 at the tip of the temple 5, and as shown in FIG. A decoration 11 or the like may be provided on the circumference so as not to disturb the rotation of the hinge part.

FIG. 5 is a top view showing a main part of another example of the eyeglass frame of the present invention, and FIG. 6 is a side view of the eyeglass frame shown in FIG. As shown in FIGS. 5 and 6, the spectacle frame 1 of the present invention may be provided with a protruding decoration 11 on the outside of the top 6 of the temple 5, which is connected to the top inside the tip 3 of the front 2. .

[0019]

[Effect of the device]

 As described above, in the eyeglass frame of the present invention, the hinge top is formed inside the wisdom integrally with the wisdom, and the tip of the temple is integrally provided with the top corresponding to the wisdom hinge top. By adopting a configuration in which the hinge is directly connected, it is necessary to manufacture a separate member as compared with the conventional eyeglass frame in which the hinge is connected to the hinge and the temple is connected to this hinge. The structure of the wisdom can be formed to be small, the design from the wisdom to the temple can be formed to be clean, and it is possible to form a slender and lightweight eyeglass frame that is excellent in design.

Further, since the hinge member is not used, the number of parts is reduced and the labor such as brazing can be saved, so that the cost is reduced, and the brazed portion of the hinge member may be peeled off to remove the temples. There is none. Furthermore, since brazing is unnecessary, any material such as stainless steel, titanium, nickel silver, high nickel, etc. can be used as the material of the temple.

When the front surface is manufactured by injection molding or the like with the above-mentioned specific physical properties as the material of the plastic, or when using a specific material, it exhibits excellent moldability and has good physical properties. Indicates. And since it has sufficient strength, it can be formed into a slimmer shape, further increasing the degree of freedom in design.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an example of a spectacle frame of the present invention.

FIG. 2 is a top view of the spectacle frame shown in FIG.

FIG. 3 is an exploded perspective view of an essential part showing another example of the eyeglass frame of the present invention.

FIG. 4 is a perspective view showing an appearance of a temple tip portion.

FIG. 5 is a top view showing a main part of another example of the eyeglass frame of the present invention.

6 is a side view of the spectacle frame shown in FIG.

FIG. 7 is a perspective view showing a main part of a conventional eyeglass frame.

8 is an exploded view of the conventional eyeglass frame shown in FIG.

[Explanation of symbols]

 1: Eyeglass frame 2: Front 3: Wisdom 4: Top 5: Temple 6: Top 7: Hinge screw 8: Hinge part

Claims (4)

[Scope of utility model registration request] 1. In an eyeglass frame having at least a front made of plastic, a hinge top is integrally formed with the inside of the tip, and a tip corresponding to the tip of the tip is integrally provided at the tip of the temple. The eyeglass frame is characterized in that the temple and the wisdom are directly connected. 2. The plastic has a tensile strength of 800 kg / cm ² or more (according to ASTM D-638) and a flexural modulus of 250.
00 kg / cm ² or more (according to ASTM D-790), heat distortion temperature 190 ° C. or more (ASTM D-648, 18.
6 kg / cm ² load) thermoplastic resin.
Eyeglass frame described. 3. The spectacles according to claim 1, wherein the plastic is one kind or a mixture of two or more kinds selected from the group consisting of polyetheretherketone, polyethersulfone, polyetherimide and polyallylsulfone. frame. 4. The spectacle frame according to claim 1, wherein the plastic is a fiber-reinforced resin.