JPH09311299A - Temple joint structure of spectacle frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temple joint structure of a spectacle frame which is connectable in spite of non-brazable materials and is freely adjustable in the length of temples. SOLUTION: The temple 4 is connected to a wraparound endpiece 3 via a hinge 5 and the inner side of a temple end is provided with a guide groove. The one hinge piece 8 of the hinge forms a guide 11 slidably fitted to the guide groove and is provided with a slit groove 12 from the front end of the hinge piece 8 to bisect the guide 11. The hinge piece has a threaded hole 13 in the intermediate part and a screw 14 is screwed into this threaded hole 13 to widen the width of the slit groove 12, by which the guide 11 is fixed to the guide groove.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temple joint structure for an eyeglass frame, and it is possible to adjust the temple length without brazing the hinge and the temple.

[0002]

2. Description of the Related Art An eyeglass frame has a structure in which a vine is attached to both sides of a front frame and the vine can be folded. Therefore, the front frame side is brazed with an armor and the vine is connected to this armor with a hinge. As is well known, the hinge connects both hinge pieces with a shaft screw,
The butterfly piece can be bent around the shaft screw. Therefore, braze each butterfly piece to the armpit and the temple side,
It is connected with a shaft screw.

In this case, the butterflies brazed to the armor and the vine must be accurate, and if the braces are misaligned and brazed, the vine connected to the armor may tilt.
Not installed properly. Also, the vine to be brazed may peel off, and there is a problem that brazing cannot be directly performed with a material such as titanium.

On the other hand, the length of the vine connected to the armature is fixed, and the length of the vine cannot be adjusted. Conventionally, there is a structure in which the length of the temple is adjustable by using a slide type, but the appearance of the temple is impaired due to an increase in the thickness of the slide portion or a step in the slide portion. I will end up.

[0005]

As described above, the conventional joint structure for eyeglass frames has the above-mentioned problems. The problems to be solved by the present invention are these problems, and provide a crane joint structure that can be connected to a butterfly without brazing and can adjust the length of the vine.

[0006]

The temple joint structure of the present invention is constructed so as to be connected to one of the hinge pieces constituting the hinge without brazing. Therefore, a guide groove is formed on the inside of the end portion of the temple on the side of the rail, and a guide formed on the butterfly piece is fitted in the guide groove so as to be slidable. Therefore, the butterfly piece has an appropriate length so that it can be fitted into the guide groove and slidable.

Then, the guide groove and the guide are engaged with each other and fitted, and the length of the temple is adjusted by moving in the sliding direction. When the length of this temple is determined, it is necessary to fix the guide with the temple, but for that purpose, the guide is formed with a slit groove of an appropriate length from the tip,
A screw hole is provided in the middle of the slit groove to screw the screw. By screwing the screw, the width of the slit groove is expanded and the guide width is expanded, and the guide surface is pressed against the inner surface of the guide groove, and the guide is locked. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a spectacle frame in which rims 1 and 1 for fitting lenses are connected by a connecting member 2.
The outer ends of the end pieces are brazed with the end pieces 3,3, and the joint pieces 4,4 are connected to the end pieces 3,3 via hinges 5,5 so that they can be folded. Also, nose pads 6 are attached to the inside of the rims 1 and 1. The present invention is characterized by the joint structure of the temples 4 connected via the hinges 5, and the form of the eyeglass frame is not limited at all.

FIG. 2 is an external view showing the temple joint structure of the present invention, in which the end pieces 3 and the temples 4 are connected by a hinge 5 and can be folded through the hinge 5 at the same time. By the way, in the hinge 5, the butterfly piece 7 and the butterfly piece 8 are connected by a shaft screw 9, the butterfly piece 7 is brazed to the end side, and the other butterfly piece 8 is fixed to the temple side. As is apparent from the figure, the butterfly piece 7 is the same as the conventional one, but the other butterfly piece 8 is elongated and has a connection structure that can be slid between the temples 4 to change its position. There is.

FIG. 3 is an enlarged view showing the end portion of the temple. A guide groove 10 is formed inside the temple 4, and the butterfly piece 8 shown in FIG. 4 is attached to the guide groove 10. The cross section of the guide groove 10 has a trapezoidal shape with a wide bottom, and the guide 11 fitted in the trapezoidal guide groove 10 also has a trapezoidal cross section. An elongated slit groove 12 is formed from the tip of the butterfly piece 8, and a screw hole 13 is provided at an intermediate position of the slit groove 12.

The slit groove 12 divides the guide 11 into two parts, and when a screw is screwed into the screw hole 13, the width of the slit groove 12 is enlarged and the guide 11 is expanded. FIG. 5 shows a case where the vine 4 is connected to the butterfly piece 8, and the guide 11 of the butterfly piece 8 has a guide groove 10 formed in the vine 4.
And the screw 14 is screwed into the screw hole 13.

The vine 4 can be attached to the butterfly piece 8 by cutting the end portion of the vine when the length thereof is appropriately adjusted. Therefore, it is necessary that the vine has been processed to be long in advance. As described above, the temple joint structure according to the present invention is a structure in which the guides in which the end pieces are engaged with the end pieces are formed, and the end pieces are provided with slit grooves and screwed and fixed. It is possible to obtain various effects.

[0013]

According to the present invention, the guide and the guide groove are engaged with each other so that they can be connected to the end piece, and the screw can be screwed into the slit groove cut from the tip of the end piece to expand the guide width and fix the guide groove. I can. Therefore, the vines can be connected without brazing, and even if the material cannot be brazed, the vines and the end pieces can be connected. Since the vine can slide along the guide, the length of the vine can be adjusted, and even if the length is adjustable, the joint structure does not spoil the appearance of the eyeglass frame.

[Brief description of drawings]

FIG. 1 is a spectacle frame.

FIG. 2 is an example showing a temple joint structure of the present invention.

FIG. 3 is a guide groove formed at the end of the temple.

FIG. 4 is a butterfly piece that constitutes a hinge.

FIG. 5 shows a case where a guide of a butterfly piece fits into a guide groove of a crane and is connected.

[Explanation of symbols]

 1 rim 2 connecting member 3 armoring 4 crane 5 hinge 6 nose pad 7 butterfly piece 8 butterfly piece 9 shaft screw 10 guide groove 11 guide 12 slit groove 13 screw hole 14 screw

Claims (1)

[Claims] 1. A vine joint structure in which yonloys are provided on both sides of a front frame of spectacles and the vines are connected via hinges so that the vines can be folded, and a guide groove is provided inside a vine end. A guide is formed on one of the hinge pieces forming the hinge, and a slit groove having a predetermined length is provided from the tip of the butterfly piece to divide the guide into two parts, and a screw hole is provided in the middle of the slit groove. A temple joint structure for eyeglass frames, in which a guide is fitted in the guide groove and a screw is screwed and fixed in the screw hole.