JP2003061720A - Design part for decoration chain and production method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a production method which enables continuously producing design parts with an elastic disc interposed in a hollow shell body. SOLUTION: The production method of design parts for decoration chains comprises a process for supporting a plurality of elastic discs 2 at a pitch D with the center part thereof inserted into a piercing wire 1, a process for making a material 6 which has the plurality of elastic discs 2 supported through the piercing wire at the specified pitch D inserted into a pipe 3 made of a precious metal and a process in which the material is moved in the direction along the axis thereof intermittently at the specified pitch D at which the elastic discs are supported while being pressed intermittently with a pair of dies 5 and 5 forming a plurality of concave molds 51 , 52 , 53 and 54 that approach to the shape of a semi-shell body 4a' sequentially as moving to the front side from the rear side thereof in direction so that the elastic discs are confined into the concave molds to continuously form design parts 4 with the elastic discs interposed in the hollow shell body 4a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative chain design part adapted to be locked in the middle of a decorative chain which is hung on a neck and hung, and a manufacturing method thereof.

[0002]

2. Description of the Related Art FIG. 5 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 made of precious metal round spheres. First, the first step is to form the round spheres 11 by brazing or heat welding the hemispherical dies 11a and 11b. Holes 14 and 14 are bored at opposite positions of the ball 11. In the second step, the round sphere 11 is set in the mold 16, the uncrosslinked silicone rubber is poured into the cavity 13 in the round sphere 11, and this state is maintained and heated to crosslink the silicone elastomer 15 into a round shape. The structure is such that the sphere 11 is filled. The third step is a step of making a small hole 17 in the silicone elastomer 15 with a needle-shaped object, and finally, in the fourth step, the chain 12 is inserted into the hole 17 to complete the chain-shaped accessory.

Further, a method of manufacturing a design part for a decorative chain as described in JP 2000-312606 A has been developed. This is as shown in FIG.
A hollow shell 18 made of a noble metal is manufactured in which two through holes 18a, 18b each having a diameter larger than a diameter of a decorative chain to be penetrated and a size of a hook to be described later can be inserted are provided at opposite positions. As shown in FIGS. 7 (a) and 7 (b), the hook of the fixed hook body 21 in which the decorative chain insertion hole 19a formed in the center of the doughnut-shaped elastic material 19 is fixed to the fixing portion 20. The step of hooking the portion 21a and the hook portion 22a of the moving hook body 22 and passing the hollow shell 18 through the end of the moving hook body 22 from the end, and pulling the moving hook body 22 in the direction indicated by the arrow A, the donut. The hollow elastic body 19 is stretched and, as shown by an arrow B, the hollow shell 1
8 to the stretched donut-shaped elastic material 19,
As shown in FIG. 7B when viewed from the other direction, the step of press-fitting the stretched donut-shaped elastic material 19 into the hollow shell body 18 from one through hole 18a of the hollow shell body 18 is performed. It is a method for manufacturing design parts for decorative chains. 7 (c) is a cross-sectional view showing a state in which the donut-shaped elastic material 19 is press-fitted into the hollow shell 18, and FIG. 7 (d) shows the hollow shell 18 inside. The doughnut-shaped elastic material 19 is pressed into the donut-shaped elastic material 19 so that the decorative chain insertion hole 19a formed at the center of the donut-shaped elastic material 19 faces the through holes 18a and 18b of the hollow shell 18. It is sectional drawing of the design part for the decoration chains completed by rotating.

Further, a method of manufacturing a design part for a decorative chain as described in JP-A-2000-312607 has been developed. This is as shown in FIG.
A step of manufacturing a material 26 having a through wire 25 at the center of an elastic material 24 in a pipe 23 made of a noble metal such as gold, silver or platinum, and as shown in FIG. 9, the material 26 is indicated by an arrow A. And the intermittent movement in the direction along the axis as indicated by arrow B, and the half shells 2 are sequentially moved from the rear side to the front side in the moving direction.
A plurality of concave molds 28 ₁ , 28 ₂ , which approach the shape of 7a,
The material 26 is intermittently pressed by a pair of dies 28 and 28 forming 28 ₃ and 28 ₄ to continuously form a design part 27 having an elastic material 27c at the center of the hollow shell 27b. The process comprises a process and a process of separating the continuously formed design parts 27 and grasping the through wire 25 with an appropriate tool to pull it out.

[0005]

There is a problem that the conventional method for manufacturing a design part for a decorative chain shown in FIG. 5 requires a third step of forming a small hole portion 17 in the silicone elastomer 15 with a needle-shaped object. It was

Further, in the method for manufacturing a decorative chain design part (see FIG. 7) described in Japanese Patent Laid-Open No. 2000-312606, since the decorative chain design parts are manufactured one by one, the manufacturing efficiency is high. Bad again
As shown in FIG. 7 (d), a decorative chain insertion hole 19 a bored at the center of a doughnut-shaped elastic material 19 press-fitted into the hollow shell 18 has a hollow shell 18 penetrating therethrough. Since the donut-shaped elastic member 19 has to be rotated so as to face the holes 18a and 18b, there is a further problem of poor manufacturing efficiency.

Further, in the method of manufacturing a design part for a decorative chain as described in Japanese Patent Laid-Open No. 2000-312607, as shown in FIG. 9, the elastic material 24 in the noble metal pipe 23 has a plurality of concave shapes. 28 ₁ , 28 ₂ , 28 ₃ ,
28 ₄ and pressed by a pair of molds 28, 28 were formed,
Since the design part 27 having the elastic material 27c is continuously formed at the center of the hollow shell 27b, and the through wire 25 is later grasped and pulled out by an appropriate tool, the through wire 2
The hole for inserting the decorative chain formed after pulling out 5 is crushed by the press of the pair of molds 28, 28, and there is a problem that when the decorative chain is inserted into this hole, the hole must be opened again. .

It is an object of the present invention to provide a method of manufacturing a design part for a decorative chain which eliminates the above problems.

[0009]

In order to achieve the above-mentioned object, the invention according to claim 1 is such that an elastic disk 2 is interposed in a hollow shell 4a and a small size is provided on both side surfaces of the hollow shell 4a. Holes 4b, 4b are provided, and a small hole 2a is formed at the center of the elastic disk 2 so as to face the small holes 4b, 4b.
It is a design part for a decorative chain, which is characterized by having been drilled.

According to the second aspect of the present invention, the step of inserting the central portion into the through wire 1 to support a plurality of elastic disks 2 at a predetermined distance D, and the through wire 1 with a plurality of elastic disks 2 are provided. A step of making a material 6 in which the noble metal pipe 3 is supported at a predetermined interval D, and the material 6 is inserted.
Are intermittently moved in the direction along the axis at pitch intervals at which the elastic disk 2 is supported, and a plurality of concave molds are formed so as to gradually approach the shape of the half shell 4a 'from the rear side to the front side in the moving direction. The pair of metal molds 5 and 5 in which 5 ₁ , 5 ₂ , 5 ₃ , and 5 ₄ are formed are intermittently pressed so that the elastic disk 2 is confined in the concave mold, and the elastic disk is inserted into the hollow shell 4 a. The steps of continuously forming the design parts 4 in which the two are interposed, the step of pulling out the penetrating wire 1 supporting the design parts 4 continuously, and the step of individually separating the design parts 4 supported by the series. This is a method for manufacturing a design part for a decorative chain, which is characterized by

According to the third aspect of the present invention, a step of inserting the central portion into the through wire 1 to support a plurality of elastic discs 2 at a predetermined interval D, and a plurality of elastic discs 2 along the through wire 1. A step of making a material 6 in which the noble metal pipe 3 is supported at a predetermined interval D, and the material 6 is inserted.
And a pair of molds 5,5 plurality of concave 5 ₁ is formed at a predetermined distance D shape to the half shells 4a ', intermittently to confine elastic disc 2 into said recessed The step of pressing to continuously form the design part 4 with the elastic disk 2 interposed in the hollow shell 4a, the step of pulling out the through wire 1 that continuously supports the design part 4, and the continuous support This is a method of manufacturing a design part for a decorative chain, which comprises a step of individually separating the designed parts 4 thus made.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Specific embodiments of a decorative chain design part and a manufacturing method thereof according to the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, the decorative chain design part of the invention according to claim 1 has an elastic disk 2 interposed in a hollow shell 4a, and small holes 4b on both side surfaces of the hollow shell 4a. 4b
And a small hole 2a is formed at the center of the elastic disk 2 so as to face the small holes 4b, 4b. The elastic disk 2 is made of natural rubber, synthetic rubber, or soft synthetic resin, has a cylindrical shape (not shown), and has a shaft hole with a small hole cut into a desired width, and is also commercially available. You can also use the faucet packing.

In the method of manufacturing a design part for a decorative chain according to a second aspect of the present invention, first, as shown in FIG. 2, the central portion is inserted into the through wire 1 to form a plurality of elastic discs 2 at predetermined intervals (pitch). ) A step of placing and supporting D, and a material 6 in which a plurality of elastic discs 2 supported on the through wire 1 at predetermined intervals D are inserted into a noble metal pipe 3.
3, and the material 6 is intermittently rotated as shown by an arrow A, as shown in FIG. 3, and a pitch (interval) corresponding to the predetermined interval D is provided as shown by an arrow B.
Are intermittently moved in the direction along the axis, and the concave molds 5 ₁ , 5 ₂ , 5 ₃ , 5 5 which gradually approach the shape of the half-shell 4 a ′ from the rear side to the front side in the moving direction. A pair of metal molds 5 and 5 that form ₄ are intermittently pressed so that the elastic disk 2 is confined in the concave mold, and the design part 4 in which the elastic disk 2 is interposed in the hollow shell 4a is continuously formed. And the step of pulling out the penetrating wire 1 that continuously supports the design part 4 and the step of individually cutting off the continuously supported design part 4.

In the method for manufacturing a decorative chain design part according to a third aspect of the present invention, as shown in FIG. 2, the central portion is inserted into the through wire 1 to form a plurality of elastic discs 2 at predetermined intervals (pitch) D. The step of placing and supporting the through wire 1
A plurality of elastic discs 2 supported at predetermined intervals D are inserted into a noble metal pipe 3 to form a material 6, and the material 6 is a half shell as shown in FIG. 4a '
Wherein the plurality of concave 5 ₁ shape was of at predetermined intervals D to at a pair of molds formed by 5,5, and intermittently press to confine elastic disc 2 in said concave, hollow shell Four
The step of continuously forming the design part 4 in which the elastic disk 2 is interposed in a, the step of pulling out the through wire 1 that continuously supports the design part 4 and the design part 4 that is continuously supported It is characterized by comprising the step of separating into.

By using the method for manufacturing the design chain for a decorative chain as in the inventions according to the above-mentioned Claims 2 and 3, the decorative chain at the center of the elastic disk 2 interposed in the hollow shell 4a is inserted. It is possible to easily manufacture the decorative chain design part 4 in which the hole formed faces the hole through which the decorative chain of the hollow shell 4a is inserted.

[0016]

EFFECTS OF THE INVENTION By using the design part for the decorative chain as claimed in claim 1, both sides of this design part and the center of the elastic disk interposed in the hollow shell constituting this design part are provided. When the decorative chain is inserted through each hole, the design part can be held and placed at a desired position on the decorative chain by friction between the hole at the center of the elastic disk and the decorative chain.

Further, in both the manufacturing method of the decorative chain design parts according to the second and third aspects of the present invention, the hole for inserting the decorative chain at the center of the elastic disk interposed in the hollow shell has a hollow shell. It is possible to easily manufacture a design part for a decorative chain that faces a hole through which the decorative chain of the body is inserted.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a design part for a decorative chain according to claim 1.

FIG. 2 is a diagram illustrating a pre-process in the method for manufacturing a decorative chain design part according to claims 2 and 3;

FIG. 3 is a diagram illustrating a method of manufacturing a decorative chain design part according to claim 2;

FIG. 4 is a diagram illustrating a method of manufacturing a decorative chain design part according to a third aspect of the present invention.

FIG. 5 is a diagram illustrating a conventional method of manufacturing a design part for a decorative chain.

FIG. 6 is a diagram illustrating a conventional method of manufacturing a design part for a decorative chain.

FIG. 7 is a diagram illustrating a conventional method for manufacturing a decorative chain design part.

FIG. 8 is a diagram illustrating a conventional method for manufacturing a decorative chain design part.

FIG. 9 is a diagram illustrating a conventional method for manufacturing a decorative chain design part.

[Explanation of symbols]

1 through line 2 the elastic disk 3 precious metal pipe D predetermined intervals 4 Design part 4a hollow shell 4a 'half shells 5 die _{5 1} concave _{5 2} recessed _{5 3} concave _{5 4} concave 6 blank 11 round balls 11a hemispherical 11b hemisphere Mold 12 Chain 13 Cavity 14 Hole 15 Silicone elastomer 16 Mold 17 Hole 18 Hollow shell 18a Through hole 18b Through hole 19 Donut-shaped elastic material 19a Decorative chain insertion hole 20 Fixed part 21 Fixed hook 21a Hook 22 Move Hook 22a Hook 23 Precious metal pipe 24 Elastic material 25 Penetration wire 26 Material 27 Design parts 27a Half shell 27b Hollow shell 27c Elastic material 28 A pair of molds 28 ₁ concave 28 ₂ concave 28 ₃ concave 28 ₄ concave

Claims (3)

[Claims] 1. An elastic disk (2) is interposed in a hollow shell (4a), and small holes (4b, 4b) are formed in both side surfaces of the hollow shell (4a), and A design part for a decorative chain, characterized in that a small hole (2a) facing the small holes (4b, 4b) is formed at the center of the elastic disk (2). 2. A step of inserting a central portion into the through wire (1) to support a plurality of elastic disks (2) at a predetermined interval D, and a plurality of elastic disks (2) along the through wire (1). A step of making a material (6) in which the noble metal is supported at a predetermined interval D and inserted into a noble metal pipe (3), and the material (6) is pitched at which an elastic disk (2) is supported. is moved in the direction along the intermittently axis at intervals, concave more as approaching the shape of sequential half shells toward the front side from the rear side in the moving direction _{(4a ') (5 1,} 5
A pair of molds (5, 5) on which ₂ , 5 ₃ , 5 ₄ ) are formed,
The elastic disc (2) is intermittently pressed so as to confine the elastic disc (2) in the concave mold, and the elastic disc (2) is inserted into the hollow shell body (4a).
For continuously forming the design part (4) with the interposition of, the process for pulling out the through wire (1) that continuously supports the design part (4) and the design part (4) supported for the continuity A method of manufacturing a design part for a decorative chain, which comprises the step of individually separating the parts. 3. A step of inserting a central portion into the penetrating wire (1) to support a plurality of elastic discs (2) at predetermined intervals D, and a plurality of elastic discs (2) being arranged on the penetrating wire (1). A material (6) in which noble metal (6) is supported at a predetermined interval D and inserted into a noble metal pipe (3), and the material (6) is shaped into a half-shell (4a ′). A plurality of concave molds (5 ₁ ) are formed by a pair of molds (5, 5) formed at the predetermined interval D, and are pressed intermittently so as to confine the elastic disk (2) in the concave molds. Hollow shell (4
a) a step of continuously forming a design part (4) with an elastic disk (2) interposed therein, a step of pulling out a through wire (1) that continuously supports the design part (4), and this continuation A method of manufacturing a design part for a decorative chain, which comprises the step of individually separating the design parts (4) supported by.