JP2000312607A - Design parts for ornamental chain and production thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide design parts for ornamental chain which can be easily produced at low cost. SOLUTION: Concerning design parts 1 to be locked in the middle of an ornamental chain to be hung on the neck, through holes 1a and 1b a little larger than the diameter of the ornamental chain to be passed through are opened at two spots facing a noble metallic shell 1c, an elastic member 1d is disposed inside this noble metallic shell 1c and further, an ornamental chain inserting hole 1e a little larger than the diameter of the ornamental chain to be passed through is disposed inside the elastic member 1d between the confronted through holes 1a and 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a design part to be locked in the middle of a decorative chain hanging from a neck and a method of manufacturing the same.

[0002]

2. Description of the Related Art FIG. 6 is a conceptual view showing an example of a conventional method for manufacturing a design part for a decorative chain. This example shows an example in which the design parts are formed of precious metal round spheres. In the first step, first, the hemispherical dies 11a and 11b are formed into a round sphere 11 by brazing or heat welding. Holes 14, 14 are drilled at positions opposing to each other. In the second step, the round sphere 11 is set in the mold 16 and the uncrosslinked silicone rubber is poured into the hollow portion 13 in the round sphere 11, and the silicone elastomer 15 is heated and crosslinked while maintaining this state. 11 is filled. The third step is a step in which a small hole 17 is formed in the silicone elastomer 15 with a needle-like object. Finally, the chain 12 is inserted into the hole 17 in the fourth step to complete the chain-shaped accessory.

[0003]

However, in the conventional method of manufacturing a design part, first, the semispherical molds 11a and 11b are formed into round spheres 11 by brazing or heat welding, and the round spheres 11 are formed therein. 14, the round sphere 11 is set in a mold 16, an uncrosslinked silicone rubber is poured into the hollow portion 13 in the round sphere 11, and the silicone elastomer 15 is heated and crosslinked while maintaining this state.
Is filled in the round ball 11 and this silicone elastomer 1
5, a small hole 17 must be opened with a needle-like object, and the chain 12 must be inserted into this hole 17. The smaller the design parts, the more troublesome the production and the higher the production cost. There was a problem. An object of the present invention is to provide a design part for a decorative chain which can be manufactured easily and at low manufacturing cost, and a method of manufacturing the same.

[0004]

In order to achieve the above object, an invention according to claim 1 is a design part 1 which is locked in the middle of a decorative chain hanging on a neck, wherein the design part 1 is penetrated. Through holes 1a and 1b slightly larger than the diameter of the decorative chain are formed at two opposing positions of a noble metal shell 1c, and an elastic material 1d is provided in the noble metal shell 1c. In addition, the opposed through holes 1a,
A design part for a decorative chain, characterized in that a decorative chain insertion hole 1e slightly larger than the diameter of the decorative chain to be penetrated is formed in the elastic member 1d between 1b.

The invention according to claim 2 is a design part for a decorative chain, wherein the hollow elastic member 1d is made of silicone resin.

According to a third aspect of the present invention, there is provided a design part for a decorative chain, wherein the hollow elastic member 1d is made of natural rubber.

According to a fourth aspect of the present invention, there is provided a design part for a decorative chain, wherein the shape of the shell 1c made of a noble metal is a sphere or an oval sphere.

The invention according to claim 5 is a design part for a decorative chain, characterized in that the shape of the noble metal shell 1c is a mirror ball.

The invention according to claim 6 is a step of manufacturing the material 4 having the through wire 9 at the center of the elastic member 3 in the noble metal pipe 2, intermittently rotating the material 4 and A step of intermittently moving in a direction along the axis, and a half-shell 1 sequentially from the rear side to the front side in the moving direction.
In order to approach the shape of c ′, a plurality of concave molds 5 ₁ , 5 ₂ , 5
_3, 5 ₄ in the pair of molds 5, 5 to form, by pressing the material 4 is intermittently, articulated design part 1 having a through line 9 to the central portion of the elastic member 1d in the shell 1c And forming, and the conjoined design parts 1
And a step of pulling out the through-wire 9 and producing a design part for a decorative chain.

The invention according to claim 7 is a step of manufacturing a material 4 having a through wire 9 at the center of the elastic material 3 in the noble metal pipe 2, and a method of manufacturing the material 4 in a direction along an axis. A step of intermittently moving and a pair of dies 5, 5 in which a plurality of concave dies 5 ₁ ′, 5 ₂ ′, 5 ₃ ′, 5 ₄ ′ similar to the shape of the half shell 1 c ′ are formed; 4 is intermittently pressed to connect and form a design part 1 having a through wire 9 at the center of the elastic member 1d in the shell 1c. A method for producing a design part for a decorative chain, comprising a step of separating and pulling out the through wire 9.

[0011]

FIG. 1 shows an embodiment of a design part for a decorative chain according to the present invention, which is a design part 1 to be locked in the middle of a decorative chain hanging on a neck, Through holes 1a and 1b slightly larger than the diameter of the decorative chain to be penetrated are formed at two opposing positions of a noble metal shell 1c such as gold, silver or platinum, and the noble metal shell. Elastic material 1d in 1c
And a decorative chain insertion hole 1e slightly larger than the diameter of the decorative chain penetrated into the elastic member 1d between the opposed through holes 1a and 1b. The elastic material 1d is a silicone resin, a natural rubber, a soft plastic, or the like. As shown in FIG. 1, the shape of the shell 1c made of the noble metal may be a sphere, not shown, but may be an oval sphere or a mirror ball.

The method of manufacturing a design part 1 for a decorative chain according to the invention according to claim 6 is, as shown in FIG. 2 (c), a method of manufacturing a precious metal pipe 2 such as gold, silver or platinum. A step of manufacturing a material 4 having a through wire 9 in the center of the material 3, and as shown in FIG. 3, the material 4 is intermittently rotated as shown by an arrow A, and as shown by an arrow B, A step of intermittently moving in the direction along the axis, and a plurality of concave molds 5 ₁ , 5 ₂ , 5.
The pair of molds 5 and 5 formed with 5 ₃ and 5 ₄ are used for the material 4.
Is intermittently pressed to connect and form the design part 1 having the penetration line 9 at the center of the elastic member 1d in the shell 1c, and cut off the design part 1 formed by this connection And a step of pulling out the through wire 9 by grasping it with an appropriate tool.

Further, the process of manufacturing the material 4 will be described in detail. First, as shown in FIG. 2A, the length of a precious metal pipe 2 such as gold, silver, or platinum used is
The length is set so that the liquid silicone resin can be injected into the noble metal pipe 2, but the range slightly varies depending on the inner diameter of the noble metal pipe 2. Also, the precious metal pipe 2 is given a degree of straightness in advance. The elasticity of rubber or the like, which is slightly larger than the inner diameter of the noble metal pipe 2 and has a through hole 1f 'at the center, through which a later-described through wire 9 can penetrate, so that it can be fitted to both ends of the noble metal pipe 2 A lid 1f having a property is prepared.

Next, as shown in FIG. 2B, the lower end of the through wire 9 prepared longer than the noble metal pipe 2 in the figure is a lid 1f fitted to the lower end of the noble metal pipe 2.
The upper end of the through wire 9 in the figure is exposed through an upper end cover 1f, and the upper end cover 1f is fitted to the upper end of the precious metal pipe 2. Don't let it. Then, from the upper end of the precious metal pipe 2, a liquid silicone resin which does not dry quickly and has a low viscosity and which is easy to inject (fill) is injected into the precious metal pipe 2. 1f, a small amount of tension is applied by pulling both ends of the exposed through-wire 9 so that the through-wire 9 is located at the center of the noble metal pipe 2, and the liquid silicon resin is solidified. It moves to the process of doing.

Next, as shown in FIG. 2C, when the liquid silicone resin injected into the noble metal pipe 2 solidifies as described above, the lids 1f at both ends of the noble metal pipe 2 are solidified.
Is removed, and the material 4 having the through wire 9 at the center of the elastic material 3 in the precious metal pipe 2 is completed.

In the invention according to claim 6,
The material 4 is intermittently moved in the direction along the axis as shown by the arrow B, and the movement pitch is set to correspond to the length of the diameter of one design part 1 to be formed.

FIG. 4 shows a method of manufacturing a design part 1 for a decorative chain according to the present invention.
A step of manufacturing the raw material 4 having the through wire 9 at the center of the elastic member 3 in the noble metal pipe 2 and, as shown by an arrow B,
A step of intermittently moving the material 4 in a direction along an axis; and a plurality of concave molds 5 ₁ ′ similar to the shape of the half shell 1 c ′.
5 _{2 ',} 5 3', a pair of molds forming a _{5 4} '5,5
Then, the raw material 4 is intermittently pressed to connect and form the design part 1 having the through wire 9 at the center of the elastic member 1d in the shell 1c. It consists of a step of separating the design part 1 and grasping and pulling out the through wire 9 with an appropriate tool.

In the invention according to claim 7,
The material 4 is intermittently moved in the direction along the axis as indicated by the arrow B, and the movement pitch corresponds to the total length of the diameters of the four design parts 1 formed in this embodiment. It has become. Therefore, four design parts 1 can be formed by one press of the pair of molds 5 and 5. The number of design parts 1 formed by one press can be increased or decreased by designing the pair of dies 5 and 5.

Further, in the invention according to claim 6,
The means for intermittently rotating the material 4 as indicated by an arrow A, and the means for intermittently moving the material 4 in a direction along an axis in the invention according to claims 6 and 7, include: Since various known means can be adopted, specific examples thereof are not shown here.

FIG. 5 is a view showing a decorative chain made by using the decorative chain design part of the present invention manufactured as described above. The shell 1c of the design part 1 as shown in FIG. Chain insertion hole 1 penetrated through through holes 1a and 1b formed in
e, the bent portion 6 'of the decorative chain 6 is inserted. An ornament 7 is attached to the end of the bent portion 6 ', and locks 8, 8' are attached to both ends of the decorative chain 6 to form a decorative chain. Thus, the decorative chain 6
When the design part 1 attached to the design part 1 is moved as shown by arrows a and b, the elastic member 1d in the design part 1 is moved.
Due to the elasticity of the design part 1, the design part 1 is held at the moved position.

[0021]

According to the first aspect of the present invention, there is provided a design part for a decorative chain, wherein through holes slightly larger than the diameter of the decorative chain to be penetrated are formed at two opposing positions of the shell made of noble metal. And an elastic material in the noble metal shell, and a decorative chain insertion hole slightly larger than the diameter of the decorative chain penetrated into the elastic material between the opposed through holes. The decorative chain is inserted through the through holes drilled at two opposite locations of the noble metal shell and the decorative chain insertion hole drilled in the elastic material in the shell. When the design part for the decorative chain is moved to a desired position, the design part can be held at the moved position by the elasticity of the elastic material in the shell.

According to a sixth aspect of the present invention, there is provided a step of manufacturing a material having a penetration line at the center of an elastic member in a noble metal pipe, intermittently rotating the material and moving along a shaft. Intermittently moving in the direction, and pressing the material intermittently with a pair of molds formed with a plurality of concave dies that gradually approach the shape of a half-shell body from the rear side to the front side in the moving direction. Then, a process of connecting and forming a design part having a through line at the center of the elastic material in the shell, and a process of separating the design part formed by connecting and pulling out the through line By using the method of manufacturing a design part for a decorative chain, the design part for the decorative chain having a decorative chain insertion hole in the center of the elastic material in the shell can be easily made. Kill.

According to a seventh aspect of the present invention, there is provided a step of manufacturing a material having a penetration line at the center of an elastic material in a noble metal pipe, and intermittently moving the material in a direction along an axis. And a process of intermittently pressing the material with a pair of molds having a plurality of concave shapes similar to the shape of a half-shell, and having a through-line at the center of the elastic material in the shell. A method of manufacturing design parts for decorative chains, comprising a step of connecting and forming parts and a step of separating the connected design parts and pulling out through lines, thereby providing a pair of parts. A plurality of design parts can be easily made by one press of the mold.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a design part for a decorative chain according to the first aspect of the present invention.

FIG. 2 is a view showing a process of manufacturing a raw material used in the method of manufacturing a design part for a decorative chain according to the invention according to claims 6 and 7;

FIG. 3 is a view showing a method of manufacturing a design part for a decorative chain according to the invention according to claim 6;

FIG. 4 is a view showing a method for manufacturing a design part for a decorative chain according to the invention of claim 7;

FIG. 5 is a diagram showing a decorative chain using the decorative chain design part of the present invention.

FIG. 6 is a view showing a conventional method of manufacturing a design part for a decorative chain.

[Explanation of symbols]

Reference Signs List 1 design part 1a through hole 1b through hole 1c shell 1c 'half shell 1d elastic material 1e decorative chain insertion hole 1f lid 1f' through hole 2 precious metal pipe 3 elastic material 4 material 5 mold 5 ₁ concave 5 ₂ concave 5 ₃ concave type 5 ₄ concave type 5 ₁ ′ concave type 5 ₂ ′ concave type 5 ₃ ′ concave type 5 ₄ ′ concave type 6 decorative chain 6 ′ bent portion 7 decorative device 8 locking device 8 ′ locking device 9 penetration line

Claims (7)

[Claims] 1. A design part (1) to be locked in the middle of a decorative chain hanging from a neck, wherein a through-hole (1a, 1b) slightly larger than the diameter of the decorative chain to be penetrated has a noble metal. The shell (1c) made of noble metal is pierced at two opposing positions, and the shell (1)
c) has an elastic material (1d), and furthermore, in the elastic material (1d) between the opposed through holes (1a, 1b), a decorative chain slightly larger than the diameter of the decorative chain to be penetrated. A design part for a decorative chain, wherein the design part has an insertion hole (1e). 2. A decorative chain design part according to claim 1, wherein said elastic material (1d) is a silicone resin. 3. The design part for a decorative chain according to claim 1, wherein the elastic material (1d) is natural rubber. 4. The design part for a decorative chain according to claim 1, wherein the shape of the noble metal shell (1c) is a sphere or an oval sphere. 5. The design part for a decorative chain according to claim 1, wherein said shell (1c) made of a noble metal has a mirror ball shape. 6. An elastic material (3) in a precious metal pipe (2).
Manufacturing a material (4) having a through wire (9) in the center of the material, intermittently rotating the material (4) and intermittently moving in a direction along an axis; Half shell (1c ') in order from side to front
A plurality of concave molds (5 ₁ , 5 ₂ , 5 ₃ ,
5 ₄₎ a pair of molds forming a (5,5), and pressing said material (4) intermittently, in the center of the elastic member (1d) in the shell (1c) through line ( A decoration, comprising: a step of connecting and forming the design parts (1) having the above (9); and a step of separating the connected design parts (1) and extracting the through line (9). Manufacturing method of design parts for chains. 7. An elastic material (3) in a precious metal pipe (2).
Manufacturing a material (4) having a through wire (9) at the center of the material, intermittently moving the material (4) in a direction along an axis, and forming a half-shell (1c '). The material (4) is intermittently pressed with a pair of molds (5, 5) formed with a plurality of similar concave molds (5 ₁ ′, 5 ₂ ′, 5 ₃ ′, 5 ₄ ′) to form a shell. A step of connecting and forming a design part (1) having a penetration line (9) at the center of the elastic member (1d) in the body (1c); and connecting the design part (1) formed by the connection. A method for manufacturing a design part for a decorative chain, comprising a step of separating and pulling out a through wire (9).