JP2008036350A - Ring manufacturing method and ring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ring manufacturing method and a ring which has a pattern around the whole circumference continuously without intermission and steps. <P>SOLUTION: A bare metal 11 is formed by stacking different two kinds of metals into two plies. Then the outermost end part 11a of the bare metal 11 is fastened to the inside bare metal 11 by brazing. In that condition, a ring expander 40 is penetrated through the inside of a ring 30. Expansion and heating by the ring expander 40 from the inside of the ring 30 are repeated three times. Thus a gapless ring 30 is formed. A cone shape recess part 31 is provided by cutting the outer peripheral surface of the ring 30. Hereby the metal end part of the bare metal 11 with different metal color is exposed from the recess part 31. After that, a tapered steel bar is inserted as a core metal inside the ring 30 and the surface is made smooth and the size is adjusted by hammering the outside of the ring 30 by an iron hammer. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a ring manufacturing method and a ring, and more particularly, to a ring manufacturing method and a ring in which a pattern is continuous without a step, and without a step.

  Conventionally, a ring having a wood-like pattern on the outer periphery is known. FIG. 8 illustrates the manufacturing process of this ring. First, as shown in FIG. 8 (a), a plurality of flat metal bars 1 are laminated to form a laminate 10. For the metal 1, for example, different metals such as gold and silver or silver and copper are stacked in different steps. Next, this laminated body 10 is rolled as shown in FIG. Then, the mortar-shaped recessed part 13 is formed by carrying out mortar-shaped cutting about the surface of the laminated body 10 in multiple places like FIG.8 (c). In addition, the longitudinal cross section of the mortar-shaped recessed part 13 is shown in the figure (c). Then, a wood-like metal end is exposed inside the mortar-shaped recess 13.

  Next, in FIG. 8D, the mortar-shaped recess 13 is flattened by rolling and smoothing the laminate 10. Thereafter, the laminate 10 is wound around in an annular shape and brazed at the end to complete the ring 20.

  However, in the conventional ring 20, the wood grain pattern is not connected at the brazed end 20a, and a step is generated in the pattern. In particular, when the ring is used for a wedding ring or the like, there is a fear that such a break in the pattern may be avoided because it is not so auspicious.

  The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a ring manufacturing method and a ring in which a pattern is not interrupted over one round and is continuous without a step.

  Therefore, the present invention (Claim 1) is a method of manufacturing a ring, in which a plurality of types of metals are laminated to form a base metal, and the base metal is wound a plurality of times to form a single ring. It is characterized in that at least one concave portion is formed on the inner side and / or the outer side, and the concave portion is smoothed to produce a ring.

  By engraving the concave portion, the end of the bare metal is exposed and a pattern appears. This recess is smoothed. As described above, the pattern can be continued without a step and without a step.

  Further, the present invention (Claim 2) is a method for manufacturing a ring, in which a base metal is wound a plurality of times to form one ring, and heating is performed while expanding from the inside to the outside of the ring. It is characterized by manufacturing a ring.

  It is desirable to repeat the pressing and heating until there is no gap between the bullion. Thereby, a ring can be manufactured easily.

  Furthermore, the ring according to the present invention (Claim 3) includes a ring formed by winding a plurality of types of metal in which a plurality of types of metals are laminated, and has a step or a cut with respect to the inside and / or the outside of the ring. It is characterized by a continuous pattern engraved.

In some cases, the ring is worn with an erection, and it is desirable that the pattern does not have any cuts or steps. A pattern engraved on the surface of the metal by laminating a metal bar in which a plurality of kinds of metals are laminated becomes a continuous pattern.
As described above, even when used for a wedding ring or the like, it is excellent in beauty as an auspicious ring.

  As described above, according to the method of manufacturing a ring of the present invention, a plurality of types of metals are stacked to form a bare metal, and the bare metal is wound a plurality of times to form a single ring. Since the concave portion is engraved, the pattern can be continued without any step and without any step over the entire circumference.

  In addition, according to the method of manufacturing a ring of the present invention, the base metal is wound a plurality of times to form one ring, and the heating is performed while expanding from the inside toward the outside of the ring. A ring can be easily manufactured.

  Furthermore, according to the ring of the present invention, it is provided with a ring formed by winding a plurality of types of metal in which a plurality of types of metals are laminated, and a continuous pattern without steps or cuts on the inside or outside of the ring. Since it is formed by engraving, it is excellent in aesthetics as an auspicious ring even when used for a wedding ring or the like.

  Hereinafter, embodiments of the present invention will be described. An external view of a ring 30 according to an embodiment of the present invention is shown in FIG. In FIG. 1, a plurality of wood-like patterns are provided on the surface of the ring 30. This pattern is formed without interruption in the circumferential direction.

  Next, the manufacturing process of this ring 30 will be described. First, as shown in FIG. 2, the base metal 11 is formed by stacking two different kinds of metals in two stages. The outer shape of the metal 11 is almost the same as that shown in FIG. However, the metal is not limited to two types, and three or more types of metals may be laminated. Then, the bullion 11 is wound in an annular shape. The thickness of the base metal 11 is, for example, about 0.1 mm, and the ring 30 having a thickness of about 2 mm is formed by winding about 20 times. Thereafter, the outermost end portion 11a of the metal 11 is brazed to the inner metal 11 and stopped. In this state, the ring expander 40 shown in FIG.

  In the ring expander 40, a plurality of plates 41 are bundled in a conical cylinder shape. Ring-shaped springs 43A and 43B are disposed on the upper side and the lower side, respectively. The plate 41 extends in a trapezoidal shape downward. A cavity 45 is formed inside the ring expander 40. An insertion rod 47 can be inserted into the cavity 45. The insertion rod 47 has a conical outer wall surface. By inserting the insertion rod 47 into the cavity 45, the space between the plates 41 of the ring expander 40 is gradually expanded, and the diameter of the ring expander 40 is increased. It has become.

  By increasing the diameter of the ring expander 40 in this way, the metal 11 inside the ring 30 is expanded outward, and the gap between the metals 11 gradually decreases. Heating is performed at a stage where the ingots 11 are in close contact with each other and the gap is reduced. Although the heating differs depending on the material of the metal 11, for example, heating is performed at 960 degrees for gold and silver, and at 750 degrees for silver and copper. By performing the heating, the end of the metal 11 inside the ring 30 is fixed.

  However, in this state, since there is still a little gap between the bullion 11, the ring expander 40 further expands from the inner side of the ring 30, and the ring 30 is further adhered. Thereafter, heating is performed again. The above expansion and heating from the inside of the ring 30 by the ring expander 40 are repeated about three times. As a result, one ring 30 without a gap is formed.

  Next, as shown in FIG. 4, a plurality of locations on the outer surface of the ring 30 are cut. In this cutting, a mortar-shaped recess 31 is formed on the outer periphery of the ring 30. By this engraving, the metal end of the metal 11 having a different metal color is exposed in the recess 31. However, the recess 31 may be similarly engraved inside the ring 30. Thereafter, as shown in FIG. 5, the mortar-shaped recess is smoothed. At this time, a tapered steel rod is inserted inside the ring 30 as a core, and the outside of the ring 30 is hit with a hammer to smooth the surface and adjust the size.

  Next, when the size of the ring 30 is increased, a size reducer 50 as shown in FIGS. 6 and 7 is used. FIG. 6 shows the appearance of the size reducer 50, and FIG. 7 shows a conceptual diagram when the size is adjusted. At the center of the size reducer 50, there is provided a through hole 51 that tapers as it goes downward in the conical shape. The ring 30 is placed inside the through hole 51 and is pushed by the rod 53 from above. As a result, the thickness of the ring 30 is increased and the diameter of the ring 30 is reduced.

  Thus, a ring having an appropriate size wood grain pattern is completed. The completed ring does not have pattern cuts or steps. For this reason, in addition to not impairing the aesthetic appearance, it is easy to spread widely when carrying luck.

External view of a ring according to an embodiment of the present invention The figure which shows a state when winding a bullion in a ring Diagram showing the structure of a ring expander The figure which shows a mode when cutting to the outer periphery of a ring The figure which shows a mode when smoothing is performed to the outer periphery of a ring Appearance of size reducer Conceptual diagram when adjusting the size Conventional ring manufacturing process

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 11 Base metal 10 Laminated body 11a Outermost end of base metal 30 Ring 30 Ring 31 Recess 40 Ring expander 41 Plate 43A, 43B Spring 45 Cavity 47 Insertion rod 50 Size shrinker 51 Through hole 53 Bar

Claims (3)

Laminating multiple types of metals to form a bullion,
The bullion is wound several times to form one ring,
Engrave at least one recess on the inside and / or outside of the ring;
A ring manufacturing method for manufacturing a ring by smoothing the recess. Wind the bullion several times to form one ring,
A ring manufacturing method for manufacturing a ring by heating while expanding from the inside to the outside of the ring. Provided with a ring formed by winding a plurality of types of metal stacked several times,
A ring characterized in that a continuous pattern is engraved on the inside and / or outside of the ring without a step or a cut.

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