JPH1094407A - Accessory and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To impart springiness, and dispense with positional adjustment of a pierced earring pin and a receiving part, by forming an accessory of a first metallic raw material wound by outward turning projecting stripes arranged on both side ends and a second metallic raw material wound by striding over the adjacent projecting stripes of the first metallic raw material by these projecting stripes by inward turning the projecting stripes. SOLUTION: When an accessory is manufactured, first of all, a metallic raw material A is wound round a core body 20. This metallic raw material A has projecting stripes 1 and 2 on its both side ends, but are wound round the core body 21 by outward turning these projecting stripes 1 and 2. Next, they are wound so as to stride over the adjacent projecting stripes 1 and 2 by inward turning projecting stripes 3 and 4 by a metallic raw material B having the projecting stripes 3 and 4 on both side edges. Next, the metallic raw materials A and B are plastically deformed by performing press working from the inside and outsed by rollers 101 and 102 , and the projecting stripes 1 and 2 and the projecting stripes 3 and 4 are engaged with each other, and springiness is imparted. In the case of pierced earrings, they are plastically deformed in a ring shape, and are formed as a decorator main body S, and a pierced earring pin 5 and a receiving tool 6 are brazed to these both end parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accessory having spring properties and a method for manufacturing the same.

[0002]

2. Description of the Related Art In recent years, many accessories have been sold not only at general stores but also through mail-order sales.
Rings and bracelets are the mainstream. Here, as an example of accessories, pierced earrings will be described as an example.
As shown in FIG. 6, there is a structure in which a pier spin 12 is rotatably brazed to one end of the decorative body main body 11 and a receiving portion 13 of the pier spin 12 is brazed to the other end. FIG. 7 shows a decorative body 11 of a folding type (11 ₁ , 11 ₂ ), in which a peer spin 12 is brazed at one end, and the peer spin 12 is inserted into the other end. A hole 14 is formed.

[0003]

However, in the pierced earring shown in FIG. 6, both the pierspin 12 and its receiving portion 13 are brazed.
Must be configured to be rotatable, which increases the number of parts and increases the number of man-hours at the time of assembling. On the other hand, the latter pierced earring is required to be rotatable each other ornamental body 1 _1, 1 ₂ itself because that is the center-foldable, also fitting hole at the opposite end with respect Piasupin 12 14 must be formed, which is troublesome and costly.

What is common to both of them is that the pierspin 12 and the receiving portion 13 and the pierspin 12 and the fitting hole 14 need to be accurately opposed to each other, and adjustment for this is also a troublesome operation. .

[0005] The present invention provides a structure in which the decoration body has a special structure and has a spring property, and therefore, the adjustment of the positional relationship between the pier spin and the receiving portion is almost unnecessary.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the gist of the first invention is to provide a ridge on both side ends, which is directed outward. Spiral-wound metal material (A) and adjacent ridges of helically-wound metal material (A) having ridges on both side ends, with the ridges facing inward, It consists of a metal material (B) wound and straddled, and a metal material (A),
(B) according to the present invention, in which the ridges are engaged with each other by press working to impart spring properties, and in some cases, the metal material (A) surrounds the core body and forms a spiral The metal materials (A) and (B) are formed into a ring shape by press working.

The gist of the second invention is that a metal material (A) having ridges on both sides is spirally wound along a core body with the ridges facing outward, and then has ridges on both sides. The metal material (B) is spirally wound in such a manner that the ridge is inwardly straddling the adjacent ridge of the metal material (A) spirally wound, and the whole is plastically deformed by press working from inside and outside. The metal material (A) (B)
A method of manufacturing an accessory that completes the engagement of the ridges and imparts a spring property to the metal material (C) by extruding the core before pressing or by extracting the core. Is inserted into the core body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Now, the present invention will be described in further detail with reference to the second invention. Two metal materials are spirally wound around a ridge with a core as a center, and then the two metal materials are pressed. This is a method of manufacturing an ornament that completes the locking by processing and further imparts springiness, and is used for, for example, earrings, rings, bracelets, and the like using the springiness. In particular, when used for piercing earrings, a pier spin and a receiving device for receiving the pier spin are brazed at both ends thereof. It is not necessary to braze the steel with accurate properties, and a pierced earring that requires very little man-hour and is inexpensive can be obtained.

Then, the metal materials (A) and (B) are pressed from inside and outside to complete the engagement between them, and are provided with a spring property. This is because the metal material (H) is spirally wound. This is achieved by plastically deforming and filling the gap at the time of winding in (A) and (B). Although the metal materials (A) and (B) are plastically deformed by the press working, the outer shape of the metal material (B) can be particularly changed by the press die to improve the decorativeness. Pressing is a process in which metal materials (A) and (B) are processed by a pair of rolls.
The ring shape can be obtained by changing the speed at the time of pressing the metal.

[0010] The metal material (A) used in the present invention,
Examples of the material of (B) include an alloy mainly composed of gold, platinum, silver and the like, but it is a matter of course that the material is not limited to these.

[0011]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples. FIG. 1 shows a process chart of a method for manufacturing an accessory according to the second invention. First, as a first step, a core body 20 is prepared, and a metal material (A) is wound therearound. This metal material (A) has ridges 1 and 2 on both ends thereof.
The ridges 1 and 2 are wound outward on the core body 21. Next, as a second step, ridges 3 and 4 are formed on both side ends.
With the metal material (B) having the above, the ridges 3 and 4 are turned inward, and the adjacent ridges 1 and 2 of the wound metal material (A) are straddled in the same manner. As a third step, the metal materials (A) and (B) are plastically deformed by press working from inside and outside with rolls 10 ₁ and 10 ₂ to engage the ridges 1, 2, 3 and 4. And complete
In addition, spring properties are imparted by this press working. At this time, it is generally deformed into a ring shape. For example, the speed can be changed by a pair of press rolls to form a ring shape.

The core body 20 is usually drawn before being pressed and then pressed. In some cases, the core body 20 may be pressed without being pulled out. In some cases, another material may be used again. Pressing may be performed after insertion.

FIG. 2 is a side view showing a pierced earring as an example of the accessory of the first invention, FIG. 3 is a front view, and FIG. 4 is a central development sectional view thereof. The pierced earrings shown in the example of this figure are made of metal materials (A) and (B), each of which has a projection 1,
The decorative body S is formed by pressing the flat pieces 2, 3, and 4 flatly in a locked state to complete the engagement, and furthermore, plastically deforming the ring body. The pier spin 5 and the receiving member 6 are brazed to both ends formed in a ring shape.

As shown by the arrows in FIGS. 5 and 3, the elasticity is imparted, so that it can be freely deformed in the front, rear, left and right directions, so that it is easy to insert the pier spin 5 into the hole formed in the earlobe. The direction of the pierspin 5 and the receiving member 6 brazed to the decorative body S is not necessarily required to be accurate, so that the man-hour at the time of assembling is omitted, and the inexpensive one is provided. Become. In addition, a relatively inexpensive metal material is used as the decorative body, so that a low-cost product as a whole can be mass-produced.

[0015]

The present invention is an ornament using a metal material (plate), so that it is not only excellent in decorativeness, but also requires a small amount of metal material, and is further inexpensive. Is to be obtained in large quantities.

[Brief description of the drawings]

FIG. 1 shows a process chart of a method of manufacturing an accessory according to the second invention.

FIG. 2 is a side view showing a pierced earring as an example of the accessory of the first invention.

FIG. 3 is a front view of the pierced earring of FIG. 2;

FIG. 4 is a central sectional view of the pierced earring of FIG. 2;

FIG. 5 is a side view showing an expanded state of the pierced earring of FIG. 2;

FIG. 6 is a side view of a conventional pierced earring.

FIG. 7 is a side view of a conventional pierced earring.

[Explanation of symbols]

A, B: metal material, S: decorative body, 1, 2: ridges on both sides of metal material (A), 3, 4: ridges on both sides of metal material (B), 5 ‥‥ Piasupin, 6 ‥‥ bracket as, 10 _1, 10 ₂ ‥‥ Russia - le, 20 ‥‥ core.

Claims (7)

[Claims] 1. A metal material (A) having ridges on both side ends and spirally wound with the ridges facing outward, and the helical shape having ridges on both sides ends and having the ridges facing inward. The metal material (A) is wound around the metal material (A), and the metal material (B) is wound by straddling the metal material (A), and the metal materials (A) and (B) are pressed to form the metal material (B). Is engaged,
An accessory that has a spring property. 2. The accessory according to claim 1, wherein the metal material (A) is spirally wound around the core. 3. The accessory according to claim 1, wherein the metal materials (A) and (B) are formed into an annular shape. 4. The accessory according to claim 3, wherein a pier spin is brazed to one end of the accessory and a receiver is brazed to the other end. 5. A metal material (A) having ridges on both side ends is spirally wound along a core body with the ridges facing outward, and the metal material (B) having ridges on both side ends is then wound. The metal material (A) is spirally wound in such a manner that the ridges are turned inward over the adjacent ridges of the metal material (A) spirally wound, and the entire metal is plastically deformed by press working from inside and outside. A) A method of manufacturing an ornament, wherein the engagement of the ridges of (B) is completed and a spring property is imparted. 6. The accessory according to claim 5, wherein the core body is exposed before the press working. 7. The accessory according to claim 6, wherein the metal material (C) is inserted into the core body before the pressing.