JPH11231268A - Manufacture of temple of spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To build a rod made of shape memory alloy in the front frame side of a temple. SOLUTION: A temple material has its end part cut on the side of a front frame, holes 6 and 7 are bored in the connection surface of a temple piece 3 fitted to a front frame 2 and the connection surface of a temple 4, and a rod 8 made of shape memory alloy is fixed in those holes 6 and 7 to couple the temple piece 3 and temple 4 with each other; after the rod 8 is bent, the rod 8 is thermally processed for memorization to give an ultra-high elasticity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a method for manufacturing a temple using a shape memory alloy.

[0002]

2. Description of the Related Art Super elasticity (shape memory function) has been provided by incorporating a rod made of a shape memory alloy into a front frame side end of a temple. Conventionally, a rod made of a shape memory alloy is inserted into a pipe-like portion of a temple, and is incorporated into the temple by caulking or the like.

However, since the shape memory alloy rod caulking of the pipe-shaped portion of the temple cannot be finished finely, the appearance of the first standing portion of the eyeglass frame is poor. This part is referred to by those skilled in the art as "armor". In particular, when two rods are attached in parallel to the pipe-like portion of the temple, a gap is formed between the two rods, which makes the appearance unsightly, which lowers the commercial value. I have.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to integrate a shape memory alloy rod into a temple on the front frame side of a temple.

[0005]

To achieve the above object, the present invention cuts a front end of a temple material on a front frame side and forms a hole in a connection surface of a temple piece attached to the front frame and a connection surface of the temple by drilling. Then, a braided surface-memory alloy rod for brazing is fixed to the holes by brazing, thereby connecting the temple piece and the temple and storing the shape-memory alloy rod after bending the rod. Superelasticity is imparted by applying a heat treatment.

[0006]

1, 2 and 3 show a state in which a temple for glasses 1 of the present invention is fixed to a front frame (lens rim) 2. The temple 1 for glasses is composed of a temple piece 3 attached to a front frame (lens rim) 2 and a temple 4 connected to an earrest. The temple piece 3 and the temple 4 are originally divided into two by cutting one temple material at an end on the front frame 2 side. As will be described later, the temple 4 is cut at the end on the side of the front frame 2 and is ready to be folded by a hinge 5 fixed to an inner portion thereof. Therefore, one temple material is eventually cut at two positions at the ends.

[0007] For example, two holes 6 and 7 are formed in the cut surface of the temple piece 3 and the temple 4 by connecting the holes.
Is formed. In order to form these holes 6 and 7, the temple material is configured not as a pipe (hollow) but as a rod having a solid cross section.

The temple piece 3 and the temple 4 are connected by two shape memory alloy rods 8. The two shape memory alloy rods 8 lose their shape memory function, and after a surface treatment for brazing (technon plating),
The holes are inserted into the holes 6 and 7 and temporarily fixed by caulking, and then integrated with the temple piece 3 and the temple 4 by brazing so as to fill the gap at the joint. When the brazing is completed, the technon plating is peeled off from the surface. Thereafter, the rod 8 made of a shape memory alloy is bent, and is bent at an appropriate radius to approximately 90 degrees. Lastly, after attaching the hinge 5 to the end of the temple 4 on the front frame side, coarse adjustment is performed. After imparting superelasticity, it is finished by final polishing.

[0009] By such an assembling process, the rod 8 made of the shape memory alloy is connected to the temple piece 3 and the temple 4.
Are inserted into the holes 6 and 7 at both ends, and are firmly connected by crimping and brazing without any gap. The shape memory alloy rods 8 to be incorporated into the eyeglass temple 1 may be configured as one rod instead of two.

[0010]

According to the present invention, since the temple piece and the temple are connected by the rod made of the shape memory alloy, the rod part made of the shape memory alloy is restored to the original state even after a large bending deformation is applied. Therefore, the wearability of the glasses for the user is improved. In addition, since the shape memory alloy rod is connected to the temple piece and the temple by caulking and brazing, the connection portion is strong and has a structure that can sufficiently withstand bending from external force. Moreover, since the shape memory alloy rod is inserted into the temple piece or the temple by drilling, and the gap is completely embedded by brazing, the eyeglass temple can be formed in the most prominent part of the eyeglass.

[Brief description of the drawings]

FIG. 1 is a plan view of a temple for glasses according to the present invention.

FIG. 2 is a side view of the temple for glasses of the present invention.

FIG. 3 is a front view of the temple for glasses of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Glasses temple 2 Front frame 3 Temple piece 4 Temple 5 Hinge 6 Hole 7 Hole 8 Shape memory alloy rod

Claims (2)

[Claims] 1. A front end of a temple material on a front frame side is cut, holes are formed in a connection surface of a temple piece attached to the front frame and a connection surface of the temple by hole processing, and the holes are formed of a shape memory alloy. By fixing the rod, the temple piece and the temple are connected to each other, and the shape memory alloy rod is subjected to a heat treatment of memory storage after the bending of the shape memory alloy rod, thereby providing super elasticity. Method for manufacturing temples for eyeglasses. 2. A front frame side end of the temple material is cut, holes are formed in a connection surface of a temple piece attached to the front frame and a connection surface of the temple by drilling, and brazing surfaces are formed in the holes. By bonding the treated shape memory alloy rod by brazing, the temple piece and the temple are connected, and after bending the rod, the shape memory alloy rod is subjected to a heat treatment for memory storage, thereby achieving superelasticity. And a method for producing a temple for glasses.