JPH0716447B2 - Combiring and manufacturing method thereof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a multi-layered ring called combi ring, and in particular, a multi-layered ring in which various patterns are integrally formed on the outer peripheral surface by combining precious metals having different colors, and The manufacturing method is related.

Conventional technology Conventionally, as a ring that forms a pattern on the outer peripheral surface by combining precious metals with different colors, strips of precious metals with different colors are laminated to form a plate material, which is then rolled and welded at both ends. In some cases, a plurality of grooves are provided in the base ring, and metal pieces having a different color tone from the base ring are inserted and fixed in the grooves.

However, the former method is not a seamless ring, so the seam is exposed, and if expansion molding is performed, the seam may break from the seam. It had to be done, and the cost was high. Further, in the latter method, the base ring is processed by an engraving machine to form a plurality of grooves, and then is cast as a prototype. However, with these methods, only a simple striped pattern can be made, and there is a strong demand that parts with different color tones and parts with different diamond cut patterns form a twill weave alternately.
It was impossible to process. In addition, there are drawbacks such as formation of cavities during casting and rough machining accuracy.

SUMMARY OF THE INVENTION The present invention eliminates these drawbacks and shifts the strip-shaped single rings from each other so that portions having different color tones or portions having different diamond cut patterns are alternately twill-woven, and casting the same. It aims at the manufacturing method which can be formed by simple machining without performing.

Means for Solving the Problems In order to solve the above problems, the present inventor provides an outer peripheral surface of a ring base with a plurality of grooves inclined in the axial direction or the axis,
A ring with a base metal having a different color tone from that of the ring base is embedded in each groove to form a single ring. The present invention has invented a method for manufacturing a combination ring by inserting a groove ring and then expanding the groove ring to integrally form a plurality of unit rings and the groove ring, and a combination ring manufactured by the method.

A single ring used in the present invention, a base metal embedded in a groove,
The groove ring is made of a noble metal such as gold, silver or platinum, or an alloy thereof, and is used in combination of noble metals having different tones.

The effect of design can be further improved by inserting different diamond cut patterns such as length and width on the surfaces of the base ring and the embedding portion in the twill weave shape.

In order to form a single ring by embedding a base metal having a different color in the groove of the base ring, it is possible to embed a noble metal piece having a different color as shown in FIG. However, as shown in Figs. 12 to 13, the noble metal with different color tone is melted and poured into the groove, and after it is cooled and solidified, the outer peripheral surface is cut to remove the noble metal overflowing from the groove to form a single ring. May be.

Action The present invention, a single ring of horizontal stripe pattern or diagonal stripe pattern of different color tones, a plurality of mutually offset patterns are combined, and also after inserting a cut pattern, etc., insert them in the annular groove of the groove ring, Since it is integrally formed by expansion molding, it is possible to form a twill weave combi ring in which portions having different color tones and portions having different cut patterns are staggered.

Further, since work hardening occurs during expansion molding, even in the case of a complex twill weave combing, it is thin and seamless with a sufficient strength.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

In the embodiment shown in FIGS. 1 to 6, 1 is a base ring made of a gold alloy, and a plurality of axial grooves 2 are provided at equal intervals on the outer peripheral surface thereof. Reference numeral 3 denotes a precious metal piece made of a platinum alloy having a color tone different from that of the base ring 1, and has a size that can be inserted into the groove 2 of the base ring 1. Reference numeral 4 denotes a groove ring made of a gold alloy, and an annular groove 5 having a size into which two base rings 1 can be inserted is provided on the outer peripheral surface thereof.

In order to manufacture the twill weave combination ring 6, the noble metal piece 3 is inserted into each groove 2 of the base ring 1 as shown in FIG. 3, and the temperature is 700 ° C. or more through a brazing filler metal (not shown). Is brazed by applying heat to form a horizontal striped single ring 7. Here, different cut patterns may be processed on the surfaces of the base ring 1 and the noble metal piece 3.

Next, as shown in FIGS. 4 to 5, two unitary rings 7 annealed and softened by brazing are displaced from each other and temporarily fixed with an adhesive to assemble them together, and then the groove is formed. It is inserted into the annular groove 5 of the ring 4. After that, expansion molding is performed by punch expansion processing or the like (not shown) to form the two unitary rings 7 and the groove ring 4 into a slightly thin wall.

At this time, since the combi ring 6 is work-hardened by expansion molding, sufficient strength is maintained even if the wall thickness is reduced, and there is no risk of deformation.

7 to 11 figure shows a further embodiment, the combination ring ₆₁ of Figure 7 is a combination alternately three single ring 7 of horizontal stripe pattern on twill form, Figure 8 and Figure 9 the Combi ring 6 ₂ and 6 ₃ combines the waveform shape continuously three single ring 7 ₁ diagonal stripes, and is a combination alternately oblique stripes. The combination ring 6 _{4 in} FIG. 10 is a combination of the patterns of the three unitary rings 7 with horizontal stripes that are slightly shifted, and the combination ring 6 _{5 in} FIG. 11 is a twill weave in which different parts of the diamond cut pattern are staggered. The other configurations and operations are the same as those of the above-described embodiment.

FIGS. 12 to 13 are explanatory views of an embodiment in which the unitary ring 6 is manufactured by another method, in which a noble metal having a different color tone is melted and embedded in the groove 2 of the base ring 1, which is cooled and solidified. After that, the outer peripheral surface is cut to remove the portion overflowing from the groove 2 to form the unitary ring 6.

Advantageous Effects of Invention According to the combi ring and the manufacturing method thereof of the present invention, a single ring having a striped pattern is combined by staggering the pattern portions thereof, and is inserted into a groove ring for expansion molding to form an integrated seamless ring. For the first time, it is possible to manufacture a twill weave pattern in which parts with different color tones and parts with different cut patterns are staggered. Further, in order to manufacture this combination ring, since it can be manufactured by a simple machining process rather than casting, it is possible to obtain a product which has no cavities and has a high processing accuracy.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a combination of the present invention, and FIG.
FIG. 3 is a longitudinal sectional view, FIG. 3 to FIG. 6 are process explanatory views showing the manufacturing method of the present invention, FIG. 7 to FIG. 11 are front views showing other embodiments, and FIG. 12 to FIG. It is explanatory drawing which shows the other manufacturing method of a single body ring. 1 ... Base ring, 2 ... Groove, 3 ... Base metal piece, 4 ...
Groove ring, 5 ... Annular groove, 6,6 ₁ , 6, _{2 2} , 6 ₃ , 6, ₄ 6,6 ₅ Combi ring, 7, 7 ₁ Single ring.

Claims (2)

[Claims] 1. A single ring in which a plurality of grooves are provided on the outer peripheral surface of the ring base in the axial direction or inclined with respect to the axis, and a base metal having a color tone different from that of the ring base is embedded in each groove, and an outer peripheral surface is formed. A combination ring comprising a plurality of the single rings, which are fixed in the annular groove provided by shifting parts having different color tones from each other. 2. A ring base is provided with a plurality of grooves on the outer peripheral surface thereof in the axial direction or inclined with respect to the axis, and a base metal having a color tone different from that of the ring base is embedded in each groove to form a single ring, After combining the multiple unit rings so that the parts with different color tones are displaced and inserting them into the annular groove provided on the outer peripheral surface of the groove ring, the groove ring is expanded and molded to integrate the multiple unit rings with the groove ring. A method for producing combi ring, which is formed by forming.