JPH04204813A - Production of spectacle frame - Google Patents

Abstract

PURPOSE:To eliminate the need for a skilled operation by welding a ceramic plate body to the peripheral side face of a temple mounting part of a plastic spectacle frame body so as to be flush with this surface, fitting and embedding small projections of a hinge base plate and a flange part onto the spot facing part bored in the ceramic plate body and pivotally fitting a temple to the connecting part of the hinge base plate. CONSTITUTION:The ceramic plate body 4 is welded to the peripheral side face of the temple mounting part 2 of the plastic spectacle frame body 1 so as to be flush with this surface. The small projections 8, 8a of the hinge base plate 9 and the flange part 11 are fitted and embedded onto the spot facing part 7 bored in the ceramic plate body 4 and the temple 3 is pivotally fitted to the connecting part 13 of the hinge base plate 9. Then, the ceramic plate body 4 is made of porous ceramics and makes face-to-face contact and, therefore, the high welding strength is obtd. and the formation of the peripheral side face of the temple mounting part 2 and the peripheral side face of the ceramic plate body 4 flush with each other is facilitated. Since the flange part 11 of the hinge base plate 9 fits tightly into the spot facing part 7, the hinge base plate 9 is exactly and easily embedded and fixed into the prescribed position of the temple mounting part 2. The need for the skilled operation is eliminated in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Field of Use The present invention provides accurate positioning of the connection when connecting a temple to an eyeglass frame made of plastic, and
The present invention relates to a method of manufacturing an eyeglass frame in which the positional configuration of the temples when opening and closing is made accurate.

2. Description of the Related Art Conventionally, in plastic eyeglasses, how to accurately position and connect the temples to the eyeglass frame has been a serious issue.
As seen in Publication No. 318, a recess is carved in the eyeglass frame, a through hole is bored in the bottom of the recess, and a hinge base formed to have approximately the same shape and size as the recess is fitted into the recess. This is accomplished by attaching the concave portion with a screw through a through hole, but it is technically impossible to carve the concave portion accurately to the size of the hinge base, so accurate positioning is difficult, and glasses Even if the hinge is connected directly to the frame by press-fitting it in a heated state, it is extremely difficult for the operator to mechanically position the hinge accurately. This has the drawback of causing misalignment and unevenness, which lowers the product value.

Problems to be Solved by the Invention The present invention completely separates the process of fusing the eyeglass frame and the ceramic plate, and the process of embedding the ceramic plate and the hinge base, thereby creating parts for the eyeglass frame, the ceramic plate, and the hinge base. It makes it easy to perfectly match the eyeglass frame body and the peripheral side of the temple, and completely eliminates the need for skilled work that is required in each process and adjustment work in the final process of making eyeglass frames as in the past. It is an object of the present invention to provide a method for manufacturing an eyeglass frame that improves workability, cost, etc., improves the aesthetic appearance by using an arbitrary color of the ceramic plate, and widens the degree of freedom in aesthetic design.

[Structure of the invention]

Means for Solving the Problems The present invention improves workability such as positioning during fusion fixing work of the hinge base by interposing a ceramic plate in the temple attachment part of the eyeglass frame. The above-mentioned drawbacks are solved by providing a method for manufacturing eyeglass frames that eliminates misalignment and level differences in connecting parts, gives a decorative effect using ceramic plates, and completely individualizes each manufacturing process of eyeglass frames. It's a serious thing.

The manufacturing method for eyeglass frames involves the process of fusing a ceramic plate so that it is flush with the circumferential side of the temple attachment part of the eyeglass frame made of plastic, and the process of welding a ceramic plate so that it is flush with the circumferential side of the temple attachment part of the eyeglass frame made of plastic, and the process of fusion bonding a ceramic plate body so that it is flush with the circumferential side of the temple attachment part of the eyeglass frame body made of plastic. The manufacturing process includes a process of fitting and embedding the small protrusion and flange part of the hinge base into the part, and a process of pivotally attaching the hinge to the connecting piece of the hinge base.

Function The present invention uses a ceramic plate interposed in the temple attachment portion of the eyeglass frame to improve workability such as positioning during fusion fixing of the hinge base, and to prevent misalignment of the connecting portion between the eyeglass frame and the temple.・It eliminates the level difference, provides a decorative effect with the ceramic plate, and completely individualizes each manufacturing process of the eyeglass frame.

EXAMPLE Below, an example of the present invention will be described based on the drawings. Reference numeral 1 denotes a plastic eyeglass frame, and both ends of the eyeglass frame 1 are connected to temples 3 with temple attachment parts 2. It has become.

Reference numeral 4 denotes a ceramic plate body which has been given an arbitrary color, and the ceramic plate body 4 has a base body 5 with a flat surface formed on one end thereof so as to have the same shape as the end shape of the temple attachment part 2. A mounting hole 6 is drilled in the central part of 4, and the mounting hole 6 is
A counterbore portion 7 that is slightly depressed is formed around the .

Numeral 8.8a is a mushroom-shaped small protrusion integrally formed on the back surface of the ceramic plate 4. When the ceramic plate 4 is heat-sealed to the temple attachment part 2 of the eyeglass frame 1, the small protrusion 8.8a. 8
It is embedded in the eyeglass frame (a) and l for further fixation.

In addition, in the illustration, the small protrusion 8.8a is attached to the ceramic plate 4.
Although two small protrusions 8.8a are formed on the back surface, the number of small protrusions 8.8a is not limited in any way, and may be one or more, and the small protrusions 8.8a may not necessarily be formed.

In addition, when heat-sealing the ceramic plate 4 to the temple attachment part 2 of the eyeglass frame l, if the eyeglass frame 1 is formed into a flat shape and the temple attachment part 2 is brought into contact with it in such a state, further heat is generated. Provides a fusion effect.

Furthermore, if the ceramic plate 4 is molded to have the same shape as the end shape of the temple attachment part 2, or if it is cut to match the outer circumference of the temple attachment part 2 after heat fusion, the ceramic plate body 4 can be made of plastic. Since it is of the same quality as the eyeglass frame body 1 made of aluminum, the outer periphery can be easily and accurately formed into the same shape.

9 is a hinge base made of metal, and a ceramic plate 4
A protrusion 10 is formed with an enlarged end so that the protrusion 10 is penetrated through the attachment hole 6 and embedded in the temple attachment part 2.
is a flange portion 11 that tightly fits into the counterbore portion 7 of the mounting hole 6;
The material of the hinge base 9 is metal. but,
It may be made of ceramic.

Next, a method for manufacturing an eyeglass frame according to the present invention will be described. A plate-shaped material made of plastic is punched out to form an eyeglass frame body 1 of a predetermined shape, and then a ceramic plate body 4 is heated and pressed as appropriate. The temple attachment part 2 is heated by a device.
align with the small protrusion 8.8a and press it against the temple attachment part 2.
is buried and fixed by heat-sealing so as to make surface contact with the temple mounting part 2.

In such a thermally bonded state, the ceramic plate 4 is made of porous ceramic and has surface contact, so that the bond strength is strong.

Next, the hinge base 9 is heated by a suitable heating and pressing device and fixed to the temple mounting portion 2 through the mounting hole 6 of the ceramic plate 4 so that the small protrusion 8.8a is embedded therein.

In such a fixed state, the flange portion 1 of the hinge base 9
1 fits tightly into the counterbore 7, the hinge base 9 can be embedded and fixed precisely and easily in a predetermined position of the temple mounting part 2, and the flange 11 of the hinge base 9 fits tightly into the counterbore 7. By being buried in contact with the ceramic plate 4, the fusion strength of the ceramic plate 4 becomes even stronger, and problems such as peeling of the ceramic plate 4 after the product is completed are prevented.

〔Effect of the invention〕

In short, the present invention provides an eyeglass frame 1 made of plastic.
The step of fusing the ceramic plate 4 so that it is flush with the circumferential side of the temple mounting part 2, and attaching the small protrusion 8.8a of the hinge base 9 and the flange to the counterbore 7 bored in the ceramic plate 4. The process of fitting and embedding the portion 11 and the connecting piece 13 of the hinge base 9
Since it consists of the process of pivotally attaching the Niru 3, in the process of fusing the ceramic plate 4, since the ceramic plate 4 is made of porous ceramic and is in surface contact, the fusion strength is strengthened. In addition, it is possible to easily make the circumferential side of the temple mounting portion 2 flush with the circumferential side of the ceramic plate 40, and in the process of embedding the hinge base 9, the flange portion 11 of the hinge base 9 Since it fits tightly into the counterbore 7, the hinge base 9 can be embedded and fixed precisely and easily in a predetermined position of the temple mount 2, and the flange 11 of the hinge base 9 can come into contact with the counterbore 7. By burying the ceramic plates 4 in contact with each other, the fusion strength of the ceramic plates 4 becomes even stronger, and problems such as peeling of the ceramic plates 4 after the completion of the product can be prevented. By simply performing these steps completely independently, it is possible to significantly improve workability, cost, etc. by completely eliminating the need for skilled work required for each process and final adjustment work in the final process of making eyeglass frames as in the past.

In addition, since the ceramic plate 4 is made of ceramic, the ceramic plate 4 can be colored in any desired color to improve its aesthetic appearance and to match the color of the eyeglass frame 1, giving it greater freedom in aesthetic design. Its practical effects, such as being able to expand the scope of

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an exploded perspective view of a spectacle frame according to the present invention, FIG. 2 is an assembled perspective view of the same, and FIG. 3 is a connection between the spectacle frame and the temple. 4 is a plan view of the ceramic plate, and FIG. 5 is a front view of the same.
FIG. 6 is a plan view of the hinge base, and FIG. 7 is a front view of the same. l Glasses frame 3 4 Ceramic plate 6 Mounting hole 9 Hinge base or more

Claims (1)

[Claims] A process of fusing the ceramic plate so that it is flush with the circumferential side of the temple attachment part of the plastic eyeglass frame, and attaching the small protrusion and flange of the hinge base to the counterbore drilled in the ceramic plate. A method for producing an eyeglass frame, comprising the steps of fitting and embedding the frame, and pivoting the temple to the connecting piece of the hinge base.