JP3072328U - Ornament wire - Google Patents

Abstract

(57) [Problem] To provide a wire for accessories which can be formed to an extremely small diameter, has a restoring force even for a flexible and acute-angle bending, and has an excellent tensile strength. SOLUTION: A fine decorative band made of a noble metal material such as gold, platinum, silver, copper or an alloy thereof is spirally wound around the outer periphery of a core wire made of an ultra-fine diameter superelastic shape memory alloy without gaps. A decorative accessory wire formed by crimping and having a diameter of about 0.9 mm or less.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a decorative wire used for a necklace, a bracelet, an anklet, and the like, and a method for manufacturing the wire.

[0002]

[Prior art]

 Jewelry such as necklaces, bracelets or anklets, which are to be attached to the body in an annular shape, must have flexible flexibility and strength against bending and pulling.For example, gold, platinum, silver, copper, or their alloys If the material is wire, there is a certain limit to reducing its diameter.

[0003] Therefore, these ornaments are usually used in the form of a connected chain and used as a wire. As a typical example, as shown in FIG. 1, a large number of rings 2 are alternately formed in a cross shape. There is a so-called red bean 1 connected in the longitudinal direction. Further, as shown in FIG. 2, there is a so-called Kihei 5 in which a large number of rings 6 connected at a small interval are pressed to form a flat chain.

[0004] However, large-diameter accessories are required for luxury and heavyness, but small-diameter accessories are preferable for simplicity and lightness. However, it is difficult to reduce the diameter or width of the jewelry as a whole.

On the other hand, as shown in FIG. 3 and the like, a so-called Omega 10 wire for accessories has been developed. The Omega 10 is formed, for example, by pressing a noble metal wire having a small diameter of about 0.2 mm into a chain shape, and further pressing it from the side direction to crush the gap between the rings, so that the cross-sectional shape is substantially round. A chain-shaped core wire 11 having a diameter of about 0.4 mm is prepared. Then, a thin precious metal wire having a diameter of about 0.2 mm is spirally rolled in advance to form a cylindrical body 12 having an outer diameter of about 0.8 mm and an inner diameter of about 0.4 mm. It is manufactured by press-fitting and inserting the core wire 11.

However, in the case of using the precious metal wire, the omega 10 itself is pressed into a thin core wire 11 by pressing a chain-shaped Kihei. Has a certain limit, and it is not possible to form extra-fine diameter jewelry wires. Further, since it is necessary to previously form the cylindrical body 12 with a noble metal wire, the noble metal wire is required to have a certain diameter or more, and the omega 10 around which the noble metal wire is wound is slightly lacking in flexibility. .

[0007]

[Problems to be solved by the invention]

 An object of the present invention is to provide an accessory wire which can be formed to have an extremely small diameter, has a restoring force even when bending at a sharp angle, and has an excellent tensile strength.

[0008]

[Means for Solving the Problems]

 In order to solve the above problem, the invention according to claim 1 is based on a method in which a fine wire made of a noble metal material such as gold, platinum, silver, copper, or an alloy thereof is provided on the outer periphery of an extremely fine core wire. It is a wire for decorations such as necklaces, bracelets, anklets, etc., having a diameter of about 0.9 mm or less, which is formed by spirally winding and compressing a decoration band in a spiral manner. I do. Therefore, it is possible to provide an ornamental wire with a fine diameter that is excellent in beauty.

According to a second aspect of the present invention, in the first aspect, the core wire is made of a superelastic shape memory made of a material such as a nickel titanium alloy or a nickel titanium cobalt alloy having a diameter of about 0.7 mm or less. It is a wire for jewelry made of alloy. Therefore, it is possible to provide an accessory wire having an extra-fine diameter and having flexibility and resilience.

According to a third aspect of the present invention, in the device according to any one of the first to second aspects, the core wire is a wire for accessories which has a triangular or polygonal cross section. Features. Therefore, it is possible to provide an accessory wire which has flexibility and resilience while having a very small diameter, and has flexibility.

According to a fourth aspect of the present invention, in the device according to any one of the first to third aspects, the core wire is an ultrafine wire formed of a plurality of superelastic shape memory alloys. It is a wire for accessories that is formed by twisting. Therefore, various variations can be provided in the shape of the fine accessory wire.

According to a fifth aspect of the present invention, in the device according to any one of the first to fourth aspects, the decorative band has a thickness of about 0.1 mm to about 0.2 mm and a width of about 0 mm. It is a wire for ornaments formed from 0.1 mm to about 1.0 mm. Therefore, it is possible to provide a wire for accessories that has an extremely small diameter but is excellent in tensile strength and bending strength.

According to a sixth aspect of the present invention, in the device according to any one of the first to fifth aspects, the decorative band is a wire for ornaments having a half-moon-shaped cross section. Features. Therefore, it is possible to provide a wire for accessories that is more flexible and has reduced costs.

The invention according to claim 7 is the accessory wire according to any one of claims 1 to 6, wherein the decorative band has a polygonal outer cross-sectional shape. It is characterized by. Therefore, it is possible to provide a very fine wire for accessories that is rich in variations in appearance.

[0015]

[Embodiment of the invention]

 A first embodiment of the accessory wire according to the present invention will be described with reference to FIGS. 6 to 8. FIG. 6 is a front view showing a part of the first accessory wire according to the present invention, and FIG. It is a front view which shows the state which winds a decorative band around a line. FIG. 8 is a sectional view taken along line BB of FIG.

The first accessory wire 21 is such that the core wire 22 is formed of a so-called superelastic shape memory alloy such as a nickel titanium alloy or a nickel titanium cobalt alloy. By making the core wire 22 a super-elastic alloy, it is possible to provide a restoring force even with an extremely fine wire even at an acute bending angle, while maintaining flexibility and maintaining a constant strength against tension. Can be provided.

The diameter of the core wire 22 can be about 0.1 mm to about 0.7 mm, but is preferably about 0.3 mm in consideration of the strength as a small-diameter accessory wire. Good. This is because a wire with a too small diameter for accessories can be cut even when a super-tensile shape memory alloy is subjected to a strong tensile force. The cross-sectional shape of the core wire 32 is not limited to the illustrated circle, but may be a polygon such as a triangle, a quadrangle, and a hexagon.

On the outer periphery of the core wire 22, a noble metal material made of, for example, gold, platinum, silver, copper, or an alloy thereof is made thin and long, and a decorative band 25 is formed and spirally wound. I can. The decorative band 23 can be formed by passing a wire made of the above-mentioned material through a so-called drawing plate in which a desired decorative band-shaped hole is opened in a metal plate.

The thickness of the decorative band 23 can be formed in a range of about 0.1 to 0.2 mm, but is preferably about 0.1 mm. If it is too thin, it will be difficult to wind the core wire 22 as described later. If it is too thick, the cost of the first accessory wire 21 will increase because the noble metal is expensive. Further, the width of the decorative band 23 can be formed in a range of about 0.1 to 1.0 mm, but is preferably about 0.15 mm. This is because if the decorative band 23 is too wide, the first accessory wire 21 lacks flexibility.

The shape of the decorative band 23 does not necessarily have to be the flat shape shown in the figure, but may be formed by drawing a round line or a square line.

When the decorative band 23 made of a noble metal material is spirally wound, it forms a spring naturally and is pressed against the core wire 22. The winding is performed by a method of rotating a decorative band 23 wound around a core wire 22 fed at a constant speed. The method of rotation may be either manual operation or automatic winding by a machine.

For example, a decorative band 23 having a thickness of about 0.1 mm is spirally wound around a core wire 22 having a diameter of about 0.3 mm to produce a first ornamental wire 21 having a diameter of about 0.5 mm and a very small diameter. it can.

Since the core wire 22 is made of a superelastic shape memory alloy, it is easily peeled off when plated with the above-mentioned noble metal material. 23 has become possible.

The first jewelry wire 21 is cut to a length suitable for the purpose of use, for example, by hanging a jewel 26 at the center and attaching clasps 27 at both ends. As shown in FIG. 9, it can be used as a necklace 50 excellent in simplicity and light weight.

As shown in FIG. 10, the second accessory wire 31 according to the second embodiment of the present invention has a core wire made of a superelastic shape memory alloy similarly to the first accessory wire. At least two or more decorative bands 33 made of a noble metal material are spirally wound around the outer circumference of the base material 32, and are manufactured by crimping.

By winding the plurality of decorative bands 33, it is possible to manufacture a wire for accessories that is more mesh-like, has a sense of quality, and is excellent in beauty. Furthermore, by making the decorative band a precious metal material having different colors, for example, platinum 33a and gold 33b, the second accessory wire 31 rich in color can be manufactured.

As shown in FIG. 11, the third accessory wire 34 according to the third embodiment of the present invention includes two ultra-fine wires each having a diameter of about 0.2 mm. By twisting each other, a core wire 35 having a diameter of about 0.4 mm is formed, and a decorative band 36 also made of the same noble metal material as described above is spirally wound around the outer periphery of the core wire 35, and pressed. It was manufactured.

In the present embodiment, since the core wire 52 is formed by twisting a plurality of ultra-fine wires, it is possible to manufacture the accessory wire 51 having extremely excellent strength against bending.

The fourth accessory wire 41 according to the fourth embodiment of the present invention is made of the same superelastic shape memory alloy as in the above-described embodiments, as shown in FIGS. For example, a decorative wire 43 made of a noble metal material and having a diameter of about 0.2 mm is spirally wound around the outer periphery of a core wire 42 having a diameter of about 0.3 mm and pressed. Next, the core wire 42 on which the decorative wire 43 is wound is passed through a cutter 45 having a semicircular concave cut surface formed at a radius of 0.5 mm and rotating at a constant speed, for example. The surface is cut and polished. The surface of the wound decorative wire is a continuous smooth surface, and the cross-sectional shape of each is half-moon-shaped.

In this case, even if the decorative wire 43 having a slightly larger diameter is used, the wound decorative wire 43 is polished by the cutter 45, so that the process of winding the decorative wire 43 around the core wire 42 is easy. Thus, the accessory accessory wire 41 to be completed can have a small diameter. Further, since the gaps 44 are formed inside the decorative wires 43 in the accessory wire 41, flexibility in bending can be provided, and the amount of precious metal material used is reduced in the gaps. By doing so, it is possible to reduce costs.

As shown in FIG. 17 and the like, a fifth accessory wire 46 according to the fifth embodiment of the present invention is similar to the accessory wire manufactured according to the fourth embodiment, for example. Rotating two cutters 48 having cut surfaces such as trapezoidal concaves on the same axis at opposite angles, and passing the core wire 42 around which the decorative wire 43 is wound on the axis. Manufactured in. In such a case, the cross-sectional shape of the outer periphery of the decorative line 43 can be formed into a polygon such as a hexagon. Therefore, it is possible to provide an extra-fine accessory wire 46 with a wide variety of appearances.

Although the present invention has been described in detail with reference to the illustrated embodiments, the present invention is not limited to those embodiments only, and various modifications may be made without departing from the spirit of the present invention. Needless to say, various modifications can be made.

[0033]

[Effect of the invention]

 According to the present invention, a wire for accessories that has a remarkably small diameter as compared with the conventional one, is flexible and can be restored even at a sharp bending angle, and has strength against pulling is manufactured. can do. In addition, it is possible to give the color and the shape variation to the manufactured small-diameter accessory wire.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a conventional red bean chain.

FIG. 2 is a partially broken front view of a conventional Kihei chain.

FIG. 3 is a partially cutaway front view of a conventional omega-shaped wire.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a partially broken front view showing the manufacturing process of the omega-shaped accessory wire.

FIG. 6 is a partially cutaway front view of the first accessory wire of the present invention.

FIG. 7 is a partially broken front view showing a manufacturing process of the first accessory wire.

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a front view showing a state in which a necklace is formed by the first accessory wire.

FIG. 10 is a cross-sectional view illustrating a process of manufacturing the second accessory wire according to the present invention.

FIG. 11 is a cross-sectional view showing a manufacturing process of the third accessory wire of the present invention.

FIG. 12 is a partially broken sectional view showing a first manufacturing process of the fourth accessory wire according to the present invention.

FIG. 13 is a partially cutaway cross-sectional view of the fourth accessory wire of the present invention after the first manufacturing process.

FIG. 14 is a front view showing a second manufacturing process of the fourth accessory wire of the present invention.

FIG. 15 is a front view of the fourth accessory wire of the present invention.

FIG. 16 is a partially cutaway sectional view showing the fourth accessory wire of the present invention.

FIG. 17 is a front view showing a second manufacturing process of the fifth accessory wire according to the present invention.

FIG. 18 is a front view of the fifth accessory wire according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 red beans 2 ring 5 Kihei 6 ring 10 omega 11 core wire 12 cylindrical body 21 first accessory wire 22 core wire 23 decorative band 26 jewelry 27 clasp 29 necklace 31 second accessory wire 32 core wire 33 decorative band 34 third accessory wire 35 Core wire 36 Decorative band 41 Wire for fourth accessory 42 Core wire 43 Decorative wire 45 Cutter 46 Wire for fifth accessory 48 Cutter

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[Procedure amendment]

[Submission date] June 2, 2000 (2006.2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (7)

[Utility model registration claims] 1. A fine decorative band made of a noble metal material such as gold, platinum, silver, copper, or an alloy thereof, for example, is spirally wound around the outer periphery of an extra-fine core wire in a spiral shape without gaps and pressed. A wire for ornaments such as a necklace, a bracelet, an anklet, etc., having a diameter of about 0.9 mm or less. 2. The ornament according to claim 1, wherein the core wire is made of a superelastic shape memory alloy made of a material such as a nickel titanium alloy having a diameter of about 0.7 mm or less or a nickel titanium cobalt alloy. Wire. 3. The decorative wire according to claim 1, wherein the core wire has a polygonal cross section. 4. The core wire according to claim 1, wherein the core wire is formed by twisting a plurality of ultrafine wires formed of a superelastic shape memory alloy. Wire for ornaments. 5. The method according to claim 1, wherein the decorative band is formed to have a thickness of about 0.1 mm to about 0.2 mm and a width of about 0.1 mm to 1.0 mm. The wire for decorative articles according to any one of claims 1 to 7. 6. The decorative band according to claim 1, wherein the decorative band has a half-moon cross section.
The wire for decorative accessories according to any one of the above. 7. The accessory wire according to claim 1, wherein the decorative band has a polygonal outer cross-sectional shape.