JP3608150B2 - Design parts for decorative chains and their manufacturing methods - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a design part that is locked in the middle of a decorative chain that hangs around a neck and a manufacturing method thereof.
[0002]
[Prior art]
FIG. 6 is a conceptual diagram showing an example of a conventional method for producing a design part for a decorative chain. This example shows an example in which the design parts are made of noble metal round spheres. In the first step, first, the hemispherical molds 11a and 11b are formed by brazing or heat welding, and the round spheres 11 are formed. Holes 14 and 14 are drilled at 11 opposed positions. In the second step, the round sphere 11 is set in the mold 16 and uncrosslinked silicone rubber is poured into the cavity 13 in the round sphere 11, and this state is maintained and heated to cross-link the silicon elastomer 15 into the round sphere. 11 to fill the structure. The third step is a step of opening a small hole 17 in the silicon elastomer 15 with a needle-like material. Finally, in the fourth step, the chain 12 is inserted into the hole 17 to complete a chain-like accessory.
[0003]
[Problems to be solved by the invention]
However, in the conventional method of manufacturing a design part, first, the hemispherical dies 11a and 11b are formed by brazing or heat welding to form the round sphere 11, and the holes 14 and 14 are perforated. It is set in the mold 16, and uncrosslinked silicon rubber is poured into the hollow portion 13 in the round sphere 11, and this state is maintained and heated to crosslink, so that the silicon elastomer 15 is filled in the round sphere 11. A small hole 17 must be formed in the silicon elastomer 15 with a needle-like material, and the chain 12 must be inserted into the hole 17. The smaller the design part, the more complicated the manufacturing and the higher the manufacturing cost. There was a problem of becoming.
An object of the present invention is to provide a design part for a decorative chain that can be manufactured easily and at a low manufacturing cost, and a manufacturing method thereof.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a design part that is locked in the middle of a decorative chain that hangs around a neck, and the design part has a diameter of the decorative chain to be penetrated. While the material in which the elastic material tube is integrally fitted in the noble metal pipe having a larger through hole is intermittently moved in the axial direction while being intermittently rotated around the axis, the material is moved forward from the rear side in the moving direction. The design parts with hollow elastic material are connected in the shell body by intermittently pressing them with a pair of molds that are formed with a plurality of concave molds so as to approach the shape of the half-shell body as it goes to the side. The design part formed by connecting and separating is separated from the connecting part, and the elastic material of the connecting part is provided with a through hole smaller than the diameter of the decorative chain due to self-shrinking force. It is obtained by the design part of the decorative chain that.
[0005]
According to a second aspect of the present invention, there is provided a process of manufacturing a material having an elastic material tube in a noble metal pipe having a through-hole larger than the diameter of the decorative chain to be penetrated, and rotating the material intermittently and rotating the shaft And a pair of molds formed with a plurality of concave molds so as to gradually approach the shape of the half-shell as it goes from the rear side to the front side in the movement direction. And pressing and forming a design part having a hollow elastic material in the shell, and separating the design part formed by the connection from the connection part. The elastic material of the connection part And a step of providing a through-hole smaller than the diameter of the decorative chain by self-shrinking force.
[0006]
According to a third aspect of the present invention, there is provided a step of manufacturing a material having an elastic material tube in a noble metal pipe having a through-hole larger than a diameter of a decorative chain to be penetrated, and a shaft along the axis without rotating the material. The material is intermittently pressed by a step of intermittently moving in the direction and a pair of molds having a plurality of concave molds similar to the shape of the half-shell, and a hollow elastic material is formed in the shell. Connecting the formed design parts and separating the connected design parts from the connecting portion, and providing a through hole smaller than the diameter of the decorative chain by self-shrinking force in the elastic material of the connecting portion. It is made into the manufacturing method of the design part for decoration chains characterized by comprising.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an embodiment of a design part for a decorative chain according to the present invention, which is a design part 1 that is locked in the middle of a decorative chain that hangs around a neck, Corresponding to the through holes 1a and 1b in the shell 1c made of noble metal such as gold, silver or platinum, which is drilled at two positions where the through holes 1a and 1b slightly larger than the diameter are opposed to each other. It is formed so as to have a hollow elastic material 1d in which through holes 1a 'and 1b' smaller than the diameter of the decorative chain are formed.
Examples of the hollow elastic material 1d include silicon rubber, natural rubber, and soft plastic.
The shape of the noble metal shell 1c may be a sphere as shown in FIG. 1, or a mirror ball shape (not shown).
[0008]
In addition, as shown in FIG. 2, the manufacturing method of the design part 1 for a decorative chain according to the second aspect of the present invention is a pipe made of noble metal such as gold, silver or platinum having a through-hole larger than the diameter of the decorative chain to be penetrated. 2, a process of manufacturing a material 4 in which an elastic material tube 3 such as silicon rubber, natural rubber, or soft plastic is inserted, and the material 4 is indicated by an arrow A as shown in FIGS. 3 and 4. A step of intermittently rotating and intermittently moving in the direction along the axis as shown by an arrow B, and gradually approaching the shape of the half-shell 1c ′ as it goes from the rear side to the front side in the moving direction. A design part 1 having a hollow elastic material 1d in a shell 1c by intermittently pressing the material 4 with a pair of molds 5, 5 having a plurality of concave dies 51, 52, 53, 54 formed therein. Connecting and forming The design part 1 formed in connection is separated from the connection part 1e with an appropriate cutting tool, and the elastic material 1d of the connection part 1e is provided with a through hole 1a 'smaller than the diameter of the decorative chain due to self-shrinking force. It is.
[0009]
In addition, as shown in FIG. 2, the manufacturing method of the design part 1 for the decorative chain of the invention according to claim 3 is a pipe made of noble metal such as gold, silver or platinum having a through hole larger than the diameter of the decorative chain to be penetrated. 2, a process of manufacturing a material 4 in which an elastic material tube 3 such as silicon rubber, natural rubber, or soft plastic is inserted, and the material 4 is intermittently moved in the direction of arrow A as shown in FIGS. 3 and 4. The step of intermittently moving only in the direction along the axis as indicated by the arrow B, and a plurality of concave molds 51 ', 52', 53 ', 54' similar to the shape of the half-shell 1c 'are formed without rotation. A step of intermittently pressing the material 4 with the pair of molds 5 and 5 to form the design part 1 having the hollow elastic material 1d in the shell 1c, Connect the formed design part 1 to the connection part 1 From disconnection, in which the more the step of forming a small through-hole 1a 'than the diameter of the ornamental chain according autogenous shrinkage force to the elastic member 1d of the connecting portion 1e.
[0010]
In addition, in the invention which concerns on Claim 3, as shown by arrow B, the movement pitch which moves the said raw material 4 intermittently in the direction along an axis | shaft is the length which totaled the diameter of the four design parts 1 formed. It comes to correspond to. 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 depending on the design of the pair of molds 5 and 5.
[0011]
In the invention according to claim 2, as the means for intermittently rotating the material 4 as indicated by the arrow A and the means for intermittently moving the material 4 in the direction along the axis, there are various known types. Therefore, a specific example thereof is not shown here.
[0012]
FIGS. 5A, 5B, and 5C are diagrams showing examples of use of the decorative chain made by using the design parts of the present invention manufactured as described above, and FIG. The bent portion of the decorative chain 6 is formed by any means in the through holes 1a and 1b formed in the shell 1c of the design part 1 and the through holes 1a 'and 1b' formed in the hollow elastic material 1d as shown in FIG. Insert 6 '. The ornament 7 is attached to the end of the bent portion 6 ', and the fasteners 8, 8' are attached to both ends of the decorative chain 6 to form the decorative chain.
When the design part 1 attached to the decoration chain 6 is moved as indicated by arrows a and b, the design part 1 is held in the moved position by the elasticity of the hollow elastic material 1d in the design part 1. Is done. (B) is a diagram showing another example of use, in which one end 10 ′ of the decorative chain 6 is attached to the shell 1 c of the design part 1 and the other end 10 ″ is formed on the shell 1 c of the design part 1. The through-holes 1a and 1b and through-holes 1a 'and 1b' formed in the hollow elastic material 1d are inserted, and a decorative chain retaining member 9 is attached to the tip of the through-holes 1a 'and 1b'. The parts 1 are made into a pair by appropriate fixing means, and the decorative chains are connected to the through holes 1a and 1b formed in the shell 1c of each design part 1 and the through holes 1a 'and 1b' formed in the hollow elastic material 1d. 6 are inserted through the end portions 10 'and 10 ".
[0013]
【The invention's effect】
The design part for the decorative chain according to the first aspect of the present invention includes a noble metal shell body formed in two locations at positions facing through holes slightly larger than the diameter of the decorative chain to be penetrated. Since it is formed so as to have a hollow elastic material provided with through holes smaller than the diameter of the decorative chain, corresponding to the through holes, the through holes drilled in two opposing positions of the noble metal shell Thus, the decorative chain can be easily inserted directly or through a wire or any other means into the through hole of the hollow elastic material in the shell.
[0014]
In addition, by using the method for producing a design part for a decorative chain as in the inventions according to claims 2 and 3, the design part for the decorative chain can be manufactured extremely easily and at a low manufacturing cost.
[Brief description of the drawings]
1 is a cross-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 cross-sectional view of a material used in a method for manufacturing a design part for a decorative chain according to a second aspect of the present invention.
FIG. 3 is a diagram showing a method for manufacturing a design part for a decorative chain according to a second aspect of the present invention.
FIG. 4 is a view showing a method of manufacturing a design part for a decorative chain according to a second aspect of the present invention.
FIGS. 5A, 5B, and 5C are diagrams showing examples of using the decorative chain using the design part of the present invention.
FIG. 6 is a diagram showing a conventional method for manufacturing a design part of a decorative chain.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Design parts 1a, 1a 'Through-hole 1b, 1b' Through-hole 1c Shell 1c 'Half-shell 1d Elastic material 1e Connection part 2 Precious metal pipe 3 Elastic material tube 4 Material 5 Mold 51, 52, 53, 54 Concave type 51 ', 52', 53 ', 54' Recessed type 6 Decorative chain 6 'Bending portion 7 Decorative device 8, 8' Locking device 9 Decorative chain retaining member 10 'One end 10 "The other end

Claims (3)

A design part (1) designed to be locked in the middle of a decorative chain that hangs around the neck, wherein the design part (1) is made of a noble metal having a through hole (1a) larger than the diameter of the decorative chain to be penetrated. While the material (4) in which the inertia material tube (3) is integrally fitted in the pipe (2) is intermittently moved around the axis and intermittently moved in the axial direction, the rear side in the moving direction Is intermittently pressed by a pair of molds (5, 5) in which a plurality of concave molds (51, 52, 53, 54) are formed so as to approach the shape of the half-shell (1c ') in order from the front to the front. Then, a design part (1) having a hollow inertia material (1d) is continuously formed in the shell (1c), and the design part (1) and the design part (1) formed by the connection are formed. ) Connecting the hollow inertia material (1d) inside A through-hole smaller than the diameter of the decorative chain by self-shrinking force is released in the inertia material (1d) in the connection portion (1e) by releasing the connection state of the inertia material (1d) in the connection portion (1e). Design part of decorative chain, characterized in that 1a ') is provided. A step of producing a material (4) having a coasting material tube (3) in a noble metal pipe (2) of a through-hole (1a) larger than the diameter of the decorative chain to be penetrated, and the material (4) intermittently And a step of intermittently moving the shaft in a direction along the axis, and a plurality of concave molds (51, 52) so as to gradually approach the shape of the half-shell (1c ′) from the rear side to the front side in the movement direction. , 53, 54) is a design in which the material (4) is intermittently pressed with a pair of molds (5, 5) to form a hollow inertia material (1d) in the shell (1c). The step of connecting and forming the parts (1), the design part (1) formed by connecting the parts and the hollow inertia material (1d) in the design part (1) are separated from the connecting part (1e), The inertia material in the connecting portion (1e) 1d) releasing the connected state, and providing the through hole (1a ′) smaller than the diameter of the decorative chain by self-shrinking force in the inertia material (1d) in the connected part (1e). Manufacturing method of design parts for decorative chains. A step of manufacturing a raw material (4) having a natural material tube (3) in a noble metal pipe (2) of a through hole (1a) larger than the diameter of the decorative chain to be penetrated, and rotating the raw material (4) And a pair of molds formed with a plurality of concave molds (51 ', 52', 53 ', 54') similar to the shape of the half-shell (1c '). In (5, 5), the material (4) is intermittently pressed, and the design part (1) having a hollow inertia material (1d) in the shell (1c) is connected and formed. The connected design part ( 1) and the hollow hollow inertia material (1d) in the design part (1) are separated from the connection part (1e), and the inertia material in the connection part (1e) is separated. The connected state of (1d) is released, and the connected part (1e) And a step of providing a through hole (1a ') smaller than the diameter of the decorative chain by a self-shrinking force in the coasting material (1d).

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