JPH11190827A - Spectacle frame fitted with decoration body and its fitting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fit the decoration body to a spectacle frame easily and strongly and to manufacture it at low cost. SOLUTION: A through opening part 3 is bored at a necessary place of a spectacle frame metal part, and a thermoplastic decoration body 1a which nearly conforms with the shape of the through opening part 3 and is thick enough is heated into a movable state and then fitted to a frame metal member 2; and press molding is performed by metal molds 4 and 5 and a frame opening peripheral edge part is clamped and fixed with the molded thermoplastic decoration body 1a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative body for an eyeglass frame and a method for mounting the same.

[0002]

2. Description of the Related Art Conventionally, various decorative bodies have been attached to an eyeglass frame, and various methods are available.
(B) Method of fixing with a pin (c) Method of bonding with an adhesive or brazing,
As disclosed in Japanese Patent No. 174817 and JP-A-7-199130, there is a method in which a stopper is provided in a hollow portion of a temple and a decorative body is press-molded.

[0003]

However, in the above-mentioned methods (a) and (b), there is a risk that play is likely to occur, and there is a risk that the screws and pins may be damaged or fall off. In the method as described in (c) above, there is a great possibility that the film will be peeled off by washing or the like. Also, the above-mentioned Japanese Patent Laid-Open Publication No.
In 7, the stopper must be provided on the decorative body mounting hole forming surface of the spectacle frame main body, which requires complicated operations and processes, and makes it difficult to employ a thin member for the frame main body. The above (d)
Similarly, in the method disclosed in JP-A-7-199130, a stopper must be provided on the decorative body mounting hole forming surface of the frame body, and the frame body must have a sufficient thickness and thickness. The manufacturing process is also complicated.

[0004]

As a means for solving the above-mentioned problems, according to the present invention, a through-opening is provided at a required portion of a metal portion of an eyeglass frame, and a thermoplastic resin decoration having a shape substantially matched to the shape of the through-opening. The body is heated to a plasticizable state, fitted in the through-opening, pressed and molded by a mold, and the pressed and molded thermoplastic resin decorative body sandwiches the inner peripheral edge of the frame member of the through-opening. As a result, the decorative body is firmly fixed to the frame body and looks good.

[0005] Further, a through-opening is provided at a required portion of the metal portion of the spectacle frame, and a thermoplastic resin decorative body having a shape substantially conforming to the shape of the through-opening is heated to a plasticizable state and fitted into the through-opening. The manufacturing process and work efficiency are also improved by a method in which the thermoplastic resin decorative body molded by pressing with a mold and being pressed so as to sandwich the inner peripheral edge of the frame member of the through opening is sandwiched. .

[0006]

Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a thermoplastic resin decoration (1)
(Hereinafter, abbreviated as a decorative body) is fixed to the frame body metal part (2), and as is clear from the AA 'enlarged sectional view of FIG. 4, the frame body metal part ( The peripheral portions (2c) and (2d) of (2) are tightly clamped, and there is no play and no stopper is required inside the frame.
Although FIG. 1 shows the frame temple portion, it goes without saying that the same applies to other portions of the frame body metal portion (for example, a bridge, a blow bar, a yoroi, etc.).

FIG. 2 is an exploded perspective view of the decorative body (1a) and the frame body metal part (2) heated to a plasticizable state before being pressed and molded. Even if the shape does not exactly match the shape of the through-opening portion (3), it is sufficient if the shape does not exactly match the shape of the through-opening portion (3). By letting
The upper arm (2a) and the lower arm (2b) are firmly fixed even if the shapes do not exactly match, and are opened through the frame body.
Regardless of whether the portion is slightly thin or slightly thin, the frame main body can obtain sufficient strength.

FIG. 3 is an enlarged sectional view of a fitted state before the pressure molding, and FIG. 4 is an enlarged sectional view of FIG. 1A-A 'as described above. It is also a state.

FIG. 5 is a sectional view showing a state where the decorative body (1) is pressed and formed by the upper mold (4) and the lower mold (5), and the decorative body (1) holds the inner peripheral edges (2c) and (2d) of the frame. It shows a state in which

FIG. 6 is an exploded perspective view of a stage before the press molding, and is a cross-sectional view showing a state in which the upper mold (4) is cut in a direction perpendicular to the center line of the long axis. The attachment method will be described below with reference to FIGS. 6, 3, 4, and 5. The thickness of the through-hole (3) is substantially sufficient for the frame body metal portion (2) having the through-hole (3). Decorative body (1
a) is heated and fitted. Alternatively, a method is also possible in which the decorative body (1a) having the heated substantially shaped shape is directly placed on the decorative body forming portion (7) of the lower mold (5) and the frame body is fitted. The upper and lower mold decorative body forming portions (8) and (7) are provided with through openings (3).
It is formed so as to sandwich the peripheral edge of the frame metal member,
By press-molding, as shown in FIGS. 4 and 5, the frame body metal part (2) is firmly sandwiched and fixed, and a spectacle frame with a decorative body having a stable volume without a play and a good appearance can be provided. Further, since the above-described method is used, the decorative body can correspond to any shape.

FIG. 7 is a reference perspective view according to claim 3, wherein a flange portion (9) is formed on a decorative body (1) so as to be able to be mounted on a through hole of a frame metal portion, and is heated plastically. A method is shown in which the flange portion (9) is housed in a lower mold so as to face down, the metal frame through-opening portion (3) is fitted, and then pressed and formed.

Alternatively, as shown in FIG. 7, it is of course possible to adopt a method in which the flange portion (9) is placed on the metal portion through-opening portion (3) with the flange portion (9) facing upward, and then pressed.

Further, by providing the above-mentioned flange portion (9), the defective rate of a product formed by press molding is reduced and the efficiency is improved.

FIGS. 8 and 9 are perspective views of an embodiment according to a fourth aspect of the present invention, in which a concave or convex pattern or character (11) is formed on a resin contact portion (10) of a mold and pressed. The pattern or characters appear on the resin decoration body, and the pattern of deep irregularities and characters with clear shadows could not be formed due to the insufficient strength of the eyeglass frame and the thickness of the resin decoration body itself as before. This method has also become possible.

Further, by attaching the thermoplastic resin decorative body to the spectacle frame by the above method, it is not necessary to perform deburring,
In addition, since the finished surface of the resin contact portion (10) of the mold is mirror-finished, there is no need for polishing.

[0016]

According to the present invention, by adopting the above-described structure and mounting method, the manufacturing process and work efficiency are greatly improved, the cost is low, and the decorative body is firmly fixed and does not fall off from the spectacle frame. It has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of an eyeglass frame to which a wearing body is attached.

FIG. 2 is an exploded perspective view of a decorative body and an eyeglass frame.

FIG. 3 is an enlarged sectional view showing a state in which a decorative body is fitted to an eyeglass frame before molding.

FIG. 4 is an enlarged sectional view taken along line A-A 'of FIG. 1;

FIG. 5 is a cross-sectional view of a state molded by upper and lower molds.

FIG. 6 is an exploded perspective view of upper and lower molds and respective members.

FIG. 7 is a perspective view according to claim 3.

FIG. 8 is a perspective view according to claim 4.

FIG. 9 is a perspective view of a mounted state according to claim 4.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Thermoplastic resin decorative body (decorative body) 1a Thermoplastic resin decorative body (decorative body) 2 Frame main body metal part 2a Frame main body metal part opening upper arm 2b Frame main body metal part opening lower arm 2c Frame main body metal part opening peripheral part 2d Peripheral edge of metal opening of frame body 3 Through opening 4 Upper die 5 Lower die 6 Hinge piece 7 Lower die decorative body forming part 8 Upper die decorative body forming part 9 Thermoplastic resin decorative body flange part 10 Resin contact Part 11 Pattern or character

Claims (4)

[Claims] 1. A through-opening is provided at a required portion of a metal portion of an eyeglass frame, and a thermoplastic resin decorative body having a shape substantially conforming to the shape of the through-opening is heated to a plasticizable state and fitted into the through-opening.
An eyeglass frame, characterized in that the thermoplastic resin decorative body formed by pressing with a mold and pressed is attached so as to clamp the inner peripheral edge of the frame member of the through opening. 2. A method for attaching a decorative body to an eyeglass frame;
A through-opening is provided at a required portion of the metal part of the spectacle frame, a thermoplastic resin decorative body having a shape substantially conforming to the shape of the through-opening is heated to a plasticizable state, fitted into the through-opening, and pressed by a mold. And a method of attaching the press-molded thermoplastic resin decorative body so as to sandwich the inner peripheral edge of the frame member of the through opening. 3. The thermoplastic resin decorative body according to claim 1, wherein the thermoplastic resin decorative body is provided with a flange portion serving as a mounting means on a peripheral portion of a through opening of the metal portion. . 4. An irregular pattern or character is formed on a decorative surface of the thermoplastic resin decorative body.
4. The thermoplastic resin decorative body according to 2 or 3.