JPH0590435U - Compound temple - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a temple that has excellent elasticity and can be finely adjusted to suit the wearer. [Structure] A spring portion is made of a shape memory alloy having excellent elasticity, and the spring portion is connected to a mouthpiece, and a modern mandrel made of another kind of metal is connected to the mouthpiece and covered with a modern piece. [Effect] In addition to the spring having a large elasticity, the modern cored bar can be bent to make adjustments according to the wearer.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a temple using a shape memory alloy.

[0002]

[Prior Art]

 Shape memory alloys are extremely excellent as eyeglass parts because they have low specific gravity and large elasticity in a certain temperature range. However, since it has too great elasticity, it requires a large-scale device for the bending process, and there is a drawback in that it cannot be finely adjusted at eyeglass retailers. In other words, when purchasing eyeglasses, for example, it is necessary to bend the modern part located at the end of the temple according to the purchaser's head shape and adjust the length and bending of the temple. In the past, when manufactured in Japan, the bending adjustment could not be made at retail stores. The temple is one of the parts of the eyeglasses where the greatest elasticity is desired, which is a major drawback.

[0003]

[Problems to be solved by the device]

 Therefore, a technical problem of the present invention is to make it possible to easily adjust the bending of a temple even in a retail store without a large-scale device.

[0004]

[Means for Solving the Problems]

 The means adopted to solve the above problems will be described below.While the spring portion is made of a shape memory alloy material, the mouthpiece that is capped and connected to the end portion of the spring portion is made of a metal material that is easily bendable. It is a method of connecting modern cores and covering them with moderns.

[0005]

【Example】

 Hereinafter, the present invention will be described based on embodiments.

The spring part 1 is obtained by processing a nickel-titanium alloy wire having shape memory characteristics. Also, a nickel wire rod is processed to obtain a modern core metal 3. Further, using the same material as this, the base 2 having the insertion holes 21 and 22 at both ends is obtained. Both of the insertion holes 21 and 22 are opened by a drill, and the bottoms thereof are shaped like a mortar, and the lowest portions of the mortar-like portions of both insertion holes collide.

The end of the modern core metal 3 is inserted into the insertion hole 22 of the base 2 and brazed. Further, the end portion of the panel portion 1 is nickel-plated, inserted into the insertion hole 21 of the base 2, brazed, and caulked. Next, the vicinity of the spring portion connection of the base 2 is scraped off. After that, by covering the modern core metal 3 with the modern 4 made of synthetic resin, the temple of the first embodiment can be constructed.

Further, while the spring portion 1 is obtained in the same manner as in the first embodiment, the one in which the mouthpiece 2 and the modern core metal 3 are integrally connected from a nickel wire rod is obtained. Next, the nickel-plated end portion of the spring portion 1 is inserted into the insertion hole 21 of the base 2, brazed, and caulked to connect the both. After that, the vicinity of the spring portion connection of the mouthpiece 2 is scraped off, and the modern core metal 2 is covered with the modern 4 made of synthetic resin, whereby the temple of the second embodiment can be constructed.

Further, while the spring portion 1 is obtained as in the first embodiment, the modern core metal 3 having a smaller diameter than that of the first embodiment is obtained from the nickel wire material, and the insertion holes 21 and 22 having different hole diameters are provided at both ends. Obtain the base 2 provided. Next, insert the end of the modern core metal 3 into the insertion hole 22 of the base 2 and braze it, and then insert the nickel-plated end of the spring part 1 into the insertion hole 21 of the base 2 and braze it. Close. After that, by scraping off the vicinity of the spring portion connection of the mouthpiece 2, and covering the modern core metal 2 with the modern 4 made of synthetic resin, the temple of the third embodiment can be constructed.

According to the above-described embodiment, although the shape memory alloy having a large elasticity is used for the spring portion of the temple which needs the most elasticity, it is easy to bend it by hand in the vicinity of the modern where fine adjustment is required. Other types of bendable materials can be used.

In addition to the above-described embodiment, it is possible to make a modification in which the spring portion is connected to the base only by caulking without applying nickel plating to the end portion of the spring portion and brazing, and it is possible within the scope of the present invention. Is.

[0012]

[Effect of the device]

 As described above, the temple of the present invention has both ease of bending adjustment and large elasticity, and has a high industrial utility value.

[Brief description of drawings]

FIG. 1 is a sectional view illustrating an assembly process of a first embodiment.

FIG. 2 is a side view illustrating an assembly process of the first embodiment.

FIG. 3 is a side view illustrating an assembly process of the first embodiment.

FIG. 4 is a sectional view illustrating an assembly process of the second embodiment.

FIG. 5 is a side view illustrating an assembling process of the second embodiment.

FIG. 6 is a side view illustrating an assembling process of the second embodiment.

FIG. 7 is a cross-sectional view illustrating an assembly process of the third embodiment.

FIG. 8 is a side view illustrating an assembly process of the third embodiment.

FIG. 9 is a side view for explaining the assembling process of the third embodiment.

[Explanation of symbols]

 1 Spring part 2 Base 3 Modern core 4 Modern

Claims (1)

[Scope of utility model registration request] 1. A spring part made of a shape memory alloy material, a base for inserting and connecting end portions of the spring part, and a modern cored bar made of a metal material that is easily bendable and connected to the base. A composite temple consisting of a modern core and a modern core.