JP2961301B2 - Method of manufacturing jewelry chain - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a chain for accessories used for accessories such as necklaces and bracelets.

[0002]

2. Description of the Related Art Chains for jewelry made of precious metals such as gold alloys such as 18 and 14 gold and platinum alloys are available in various types, including Kihei, screws, red beans, Venetian, ball chains and other design chains. Is a chain, so that the wheel bodies are connected so as to be continuous, thereby providing flexibility, flexibility, and the ability to untwist against twisting.

[0003]

However, a so-called chain (chain) for connecting a ring body inevitably has a large amount of space in the ring body and has a low quality feeling. On the other hand, if a wire is formed in a wire shape instead of a chain (chain), there will be no space, but this has poor flexibility and bendability,
It is easy to break and inconvenient.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, to reduce the flexibility and flexibility of a precious metal chain and the compatibility of untwisting against torsion, and to eliminate voids so as to approach a wire. It is an object of the present invention to provide a method of manufacturing a jewelry chain that can give a sense of quality to a person.

[0005]

In order to achieve the above object, the present invention compresses a double Kihei noble metal chain consisting of continuous rings from the longitudinal direction, and further compresses the compressed body with a hammering machine. The gist is that a pressure is applied to the peripheral surface from a direction perpendicular to the direction to compress the internal surface, thereby crushing the internal voids to form a circular shape, further cutting the peripheral surface with a diamond cutter, and forming a flat surface in the longitudinal direction. .

According to the first aspect of the present invention, when the precious metal chain formed by connecting the ring bodies in the first stage is compressed from the longitudinal direction, the space on the chain surface is eliminated, but the diameter increases. The cross-sectional shape is a figure-eight shape, and two voids are formed inside in the longitudinal direction. With this alone, there are no vacancies on the peripheral surface, but there are vacancies inside, so it is scarce. Therefore, as a second step, the compressed body is further compressed by applying pressure to the peripheral surface from a direction perpendicular to the longitudinal direction by a hammering machine to crush internal voids, thereby obtaining a completely dense body. Although it is possible, it is still a collection of rings, and unlike a wire in the form of a wire, the precious metal chain does not impair the flexibility, bendability, and the ability to untwist to twist.

Further, the peripheral surface is shaved with a diamond cutter to form a flat surface in the longitudinal direction, so that the cut flat surface becomes a shiny mirror surface and the decorativeness is further improved.

In the first stage, if the precious metal chain formed by connecting the rings to be compressed from the longitudinal direction is a double Kihei, compared with a normal single Kihei or the like,
Rings are tightly assembled and have a high density after compression.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 to FIG. 3 are explanatory views of each step showing one embodiment of a method for manufacturing a jewelry chain according to the present invention.

In FIG. 1, reference numeral 1 denotes a double Kihei chain as a noble metal chain of an 18-gold alloy. The double Kihei chain 1 is a so-called double in which one wheel 2 is connected to two wheels 2 as a chain, and the wheel 2 is connected to the next one to be continuous. Also, the wheel body 2 is a flattened chain called Kihei.

The present invention relates to such a double Kihei chain 1.
And compressed from the longitudinal direction using a compressor as shown in FIG. In this state, the void 3a of the wheel body 2 in the outer peripheral portion is lost, and the entire diameter is the double Kihei chain 1
Larger than.

However, since the ring body 2 by Kihei is crushed in the front-rear direction, the cross-sectional shape is an eight-shape, and two voids 3b are formed in the longitudinal direction.

According to the present invention, the compressed body shown in FIG. 2 is further compressed by a hammering machine so as to have a reduced diameter by applying pressure to the peripheral surface from a direction perpendicular to the longitudinal direction to reduce the internal space 3b. I tried to crush it. As a result, a cylindrical continuous body 4 is obtained.

The thus manufactured chain of the present invention is a round compact chain having a serpentine scale-like peripheral surface, and becomes a necklace or a bracelet if a clasp is attached to the end.

Further, as a second embodiment, the peripheral surface was further cut by a diamond cutter (bite) from the stage shown in FIG. 3 to form a flat surface 5 in the longitudinal direction. The flat surface 5 is formed by selecting upper and lower portions of the cylindrical continuum 4 where there is no seam 6 between the ring bodies 2, and is a bright mirror surface.

In the above embodiment, the double Kihei chain 1 is used. However, this may be changed to a double red bean chain or the like, and other noble metals such as a platinum alloy may be used instead of a gold alloy. Is also possible.

[0017]

As described above, the method for manufacturing a jewelry chain according to the present invention provides a flexible and precious metal chain.
It is possible to give a sense of quality by bringing the wire closer to the wire without deteriorating the flexibility and the responsiveness of untwisting against twisting, and by eliminating voids.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a first step showing one embodiment of a method for manufacturing a jewelry chain according to the present invention.

FIG. 2 is an explanatory view of a second step showing one embodiment of a method for manufacturing a jewelry chain according to the present invention.

FIG. 3 is an explanatory view of a third step showing one embodiment of a method for manufacturing a jewelry chain according to the present invention.

FIG. 4 is an explanatory view of a fourth step showing another embodiment of the method for manufacturing a jewelry chain according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Double Kihei 2 ... Ring body 3a ... Void 3b ... Void 4 ... Cylindrical continuous body 5 ... Flat surface 6 ... Joint

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-132744 (JP, A) JP-A-3-248739 (JP, A) JP-A-56-5604 (JP, A) JP-A-60-1985 261406 (JP, A) JP-A-63-157737 (JP, A) JP-A-5-200477 (JP, A) Registered utility model 3018873 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A44C 25/00 A44C 11/00 B21L 15/00-17/00

Claims (1)

(57) [Claims] 1. A double Kihei noble metal chain consisting of continuous rings is compressed from the longitudinal direction, and the compressed body is further compressed by applying pressure to the peripheral surface from a direction perpendicular to the longitudinal direction by a hammering machine. A method of manufacturing a chain for an accessory, characterized in that an inner space is crushed to form a circular shape, and a peripheral surface is cut by a diamond cutter to form a flat surface in a longitudinal direction.