JP2003015091A - Method of manufacturing chuting temple of spectacle frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing a chuting temple which does not expose the end face of an arbor from the temple and does not require end facing matching of the arbor end in a method of chuting the arbor heated to a high temperature to the temple made of a resin heated at need. SOLUTION: A chuting port 5 is formed by curving the end of the temple 1 and notching a portion of a curved section 4. The arbor 2 is chuted from the chuting port 5 and the curved temple end is worked to a prescribed shape, by which the entire part of the temple is subjected to machining and grinding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temple for an eyeglass frame, and more particularly to a shooting temple having a metal cored bar inserted therethrough.

[0002]

2. Description of the Related Art Temples for eyeglass frames are made of metal or resin, and the temples made of metal are generally L-shaped at their tips.
A curved resin-made modern is inserted into the mold, and the resin temple is configured by inserting a cored bar through the central axis. A resin temple can be made more elastic by inserting a core metal, and the strength of the temple can be maintained.

By the way, there are various methods for manufacturing resin temples, and the most productive method is injection molding. That is, a temple with the cored bar embedded therein is completed by injecting the molten resin with the cored bar set in the mold. However, the injection-molded temple has a single color,
It is not possible to demand a high-class feeling for the temple.

Therefore, a method of manufacturing a temple by carving it out from a large plate material has been conventionally employed in order to provide a resin temple with a high-class feeling. FIG. 2 shows a conventional method for manufacturing temples by shooting. (a) is a case of shooting a core metal (b) on the temple (a), and the temple (a) is set in a mold,
(B) is pressed in while being heated to a high temperature. A butterfly piece (c) is fixed to the end of the cored bar (b), and the butterfly piece (c) is combined with the butterfly piece attached to the front frame side.

(B) is a case where the cored bar (b) is shot and attached to the center axis of the temple (a). In the figure, the temple (a) is indicated by a square bar, but the outer shape is cut and ground at the stage of shooting the core metal (b) to form a predetermined temple shape. However, the core (b) may be shot by using the temple (a) cut into a predetermined shape in the step (a). (c) is the case where the end face (d) is cut, and when shooting the core metal (b) to the temple (a), the end face (d) often does not match the temple end face, so both end faces are aligned. Perform cutting.

By the way, (c) is a temple in which a cored bar (b) is shot, and the butterfly piece (c) is combined with the butterfly piece of the front frame and connected by a shaft screw. Therefore, the temple (a) is attached so that it can be folded via a hinge, but in the conventional shooting temple, the core metal (b) is inserted from one end of the temple as shown in the figure, and as a result, the temple end is attached. The hinge will be located.

Therefore, the cored bar is exposed at the temple end, and at the same time, the exposed end face is cut to align the end face and the plating layer is also removed. That is, the core metal is shot on the temple in a plated state to prevent corrosion, but the plating layer is removed by cutting for aligning the end face with the temple and the end face corrodes. Become.

[0008]

As described above, the conventional shooting temple manufacturing method has the above-mentioned problems. The problem to be solved by the present invention is this problem, and provides a method for manufacturing a shooting temple in which the end face of the cored bar is not exposed from the temple and there is no need to cut the cored bar to align the end faces. .

[0009]

The shooting temple of the present invention is a method for shooting a cored bar heated to a temple. The shooting port of the cored bar is provided not at the end of the temple but at a predetermined position from the end of the temple. ing.
That is, the end portion of the temple is curved, a part of the curved portion is cut out to form a shooting port, and the core metal heated at high temperature is shot from the shooting port.

In this case, the resin temple may also be heated to a certain temperature. Then, after shooting the core metal, the end portion of the curved temple is bent back to its original shape, and the end shape is determined if necessary. Here, the above-mentioned temple uses a large plate or rod made of resin as a material, but when using a temple that has been cut and ground into a predetermined shape before shooting the core metal, the temple has a predetermined shape after shooting. May be cut and ground. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0011]

1 is an embodiment showing a method for manufacturing a shooting temple according to the present invention. 1 in the figure is a temple,
Reference numeral 2 denotes a core metal, and the tip end portion of the core metal 2 is thin so that the temple 1 can be easily shot, and a butterfly piece 3 is brazed to the end portion. This shape is the same as the conventional core metal (b), and the surface is plated to prevent corrosion.

In the present invention, the temple 1 is not straight, and the end on the shooting side of the cored bar 2 is bent to be curved, and a part of the curved portion 4 is cut out to form the shooting port 5. . The shooting port 5 has an end face 6 which is substantially perpendicular to the temple 1, and a bottom face 7 is substantially parallel to the temple 1.

Therefore, the cored bar 2 is heated to a high temperature and shot from the shooting port 5, but is press-fitted from the end face 6. (a) is a case of shooting the cored bar 2, where the temple 1 heated to a certain temperature is set in a mold, and the cored bar 2 heated to a high temperature is shot from the shooting port 5.

(B) is a state in which the cored bar 2 is shot along the central axis of the temple 1. Shooting mouth 5
A butterfly piece 3 brazed to the end of the cored bar 2 projects from. In this case, the end of the temple 1 remains curved. (c) is a case where the end of the temple 1 is bent back straight. Although not shown in the figure, the temple 1 is cut and ground into a predetermined shape. (d) is a completed drawing of the shooting temple, but if the core metal 2 is still being shot, a part of the shooting port 5 is left cut out. Then, the notch can be filled by filling the shooting port 5 with resin.

In the embodiment shown in the figure, a square bar obtained by cutting a large plate material is used as a temple 1, a cored bar 2 is shot on this square bar, and the outer shape is cut into a predetermined shape after the shooting. However, it is also possible to use the temple 1 cut into a predetermined shape in the stage before shooting shown in (a). Also, this end can be curved into any shape, or a cut temple can be formed.

FIG. 3 shows a case where a shooting temple is attached to the front frame. A broach 9 is attached to the outer side of the rim 8 for tightening the cut end for fitting a lens, and the broach 9 has a joint 10 projecting from the end of the temple 1. The joint 10 is attached to the broach 9 via a shaft screw. The end of the temple 1 is curved inward, and the curved tip 11 covers the brooch 9.

The front frame shown in FIG. 3 is made of metal, but when the front frame is made of resin, the temple side joint is attached to the butterfly piece (joint) embedded in the outer end of the front frame. Mounted via screws. The temple tip 11 extending from the joint or hinge
Is formed into an appropriate shape in consideration of the appearance of the eyeglass frame.

As described above, in the method for manufacturing a shooting temple of the present invention, the temple end is curved and the curved portion is cut out to form a shooting port, and the core metal is shot from the shooting port. , The following effects can be obtained.

[0019]

The manufacturing method of the shooting temple of the present invention is a method of bending the end portion of the temple and shooting the core metal from the shooting opening provided by cutting out the curved portion, and exposing the end surface of the core metal. There is no. Therefore, there is no need for end face alignment processing between the core metal and the temple, and the problem of corrosion of the end faces does not occur.

The temple-side butterfly piece or joint on which the core metal is shot has a tip portion extending from the joint or hinge toward the front frame in order to be located at a predetermined distance from the temple end surface. Therefore, the part formed by the temple tip extending toward the front frame can be used for the design of the entire spectacle frame.

[Brief description of drawings]

FIG. 1 is a manufacturing process of a shooting temple of the present invention.

FIG. 2 is a manufacturing process of a conventional shooting temple.

FIG. 3 is an outer side portion of the glasses to which the temple of the present invention is attached.

[Explanation of symbols]

1 temple 2 core metal 3 Butterfly pieces 4 curved part 5 Shooting mouth 6 end faces 7 Bottom 8 rims 9 brooches 10 fittings 11 Tip

Claims (3)

[Claims] 1. A shooting temple manufacturing method for shooting a core bar heated at high temperature on a resin temple that has been heated as necessary, wherein a temple end is curved and a part of the curved portion is cut out to form a shooting port. A shooting temple manufacturing method for a spectacle frame, which comprises forming, shooting the core metal from the shooting port, processing a curved temple end into a predetermined shape, and cutting and grinding the entire temple. . 2. A method for manufacturing a shooting temple in which a temple made by cutting and grinding a resin plate or rod into a predetermined shape is heated as necessary and a core bar heated at a high temperature is shot onto the temple. The temple end is curved, and a shooting port is formed by cutting out a part of the curved part, and the core bar is shot from the shooting port to process the curved temple end into a predetermined shape. Shooting temple manufacturing method for eyeglass frames. 3. The method for manufacturing a shooting temple for a spectacle frame according to claim 1 or 2, wherein a resin is filled in a shooting port for shooting the core metal to cover the cutout portion.