Empty frame, empty frame assembly kit, method for manufacturing an empty frame, ring, and method for manufacturing a ring

Abstract

To provide high-quality empty frames that can be manufactured inexpensively and have excellent appearance and strength. [Solution] The empty frame 100 comprises an annular member 10 made of metal wire and a metal retaining member 20 provided on the surface of the annular member 10. The annular member 10 has a closed portion 13 formed by closing a first end portion 11 and a second end portion 12. The retaining member 20 has an opposing portion 23 that is in close proximity to and opposite the closed portion 13. The opposing portion 23 of the retaining member 20 is positioned in close proximity to and opposite the closed portion 13. The closed portion 13 is formed by integrally joining the first end portion 11, the second end portion 12, and the opposing portion 23 of the retaining member 20.

Description

Technical Field

[0001] The present invention relates to an empty frame, an assembly set of empty frames, a method for manufacturing an empty frame, a ring, and a method for manufacturing a ring.

Background Art

[0002] An empty frame that supports a decorative body such as gemstones is composed of a metal material using metals such as platinum, gold, silver, copper, titanium, stainless steel, and aluminum. Metal empty frames are often manufactured by a casting method or the like, and for example, include a metal annular member and a metal holding member for holding a decorative body. Further, the empty frame may be produced by a forging method by a craftsman (hereinafter, traditional method) or a forging method by a mold (hereinafter, press method). A ring using such an empty frame is formed by holding a decorative body on a holding member of an empty frame in which an annular member and a holding member are integrated.

[0003] Patent Document 1 discloses a ring including an annular member in which a recessed concave portion for attaching a holding member is formed, and a holding member, and the annular member and the holding member are joined by brazing or the like.

[0004] Patent Document 2 discloses a ring including a forged formed body having an opening, and a decorative portion coupled to both ends of the opening of the forged formed body, and the forged formed body and the decorative portion are integrally formed.

[0005] Patent Document 3 discloses a ring including a holding member having a protrusion and an annular member having a through hole provided opposite to the protrusion, and the holding member and the annular member are integrated by fitting the protrusion into the through hole and caulking.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] For example, in the ring disclosed in Patent Document 1, the recessed area for attaching the retaining member is formed as a through-hole that penetrates from the outer circumferential surface to the inner circumferential surface of the annular member. Such annular members having a through-hole are formed by a casting method. Annular members produced by the casting method have low productivity and relatively high metal loss, resulting in high costs. In addition, annular members obtained by the casting method may contain air bubbles when the molten metal bath is poured into the mold. Due to the inclusion of air bubbles, empty frames obtained by the casting method tend to have low strength. Furthermore, there is a concern that empty frames obtained by the casting method may be inferior in appearance due to the inclusion of air bubbles.

[0008] In the ring disclosed in Patent Document 2, the annular member is a forged body. For example, in the case of a forged body obtained by a press manufacturing method, metal waste is generated as metal material is cut, as described later. For this reason, forged bodies obtained by a press manufacturing method are expensive. In the case of a forged body obtained by a traditional manufacturing method, it is made by hand by craftsmen, for example, by carving out the claws for holding the decorative element. For this reason, forged bodies obtained by a traditional manufacturing method have low production efficiency and metal waste, resulting in high costs. In addition, the ring disclosed in Patent Document 2 has multiple joints because both ends of the forged body and both ends of the decorative element are joined together. For this reason, the ring disclosed in Patent Document 2 may have low strength.

[0009] In the ring disclosed in Patent Document 3, the annular member is manufactured by a press molding process. While the production rate of the annular member by press molding is higher compared to casting and traditional methods, cutting shavings are generated during the pressing process. Furthermore, burrs and other debris generated during the pressing process must be removed. For this reason, annular members manufactured by press molding are prone to metal loss. In addition, there is a concern that rings with annular members manufactured by press molding may be inferior in appearance.

[0010] One object of the present invention is to provide a high-quality empty ring frame that can be manufactured inexpensively and has excellent appearance and strength, an assembly set of the empty ring frame, and a method for manufacturing the empty ring frame. Another object of the present invention is to provide a high-quality ring that can be manufactured inexpensively and has excellent appearance and strength, and a method for manufacturing the ring. [Means for solving the problem]

[0011] In view of the above problems, the inventors conducted diligent studies and found that by using an annular member made of a metal wire having an end portion, and integrally joining both ends of the end portion to a metal retaining member, an excellent appearance and high strength can be obtained, and it can be manufactured at low cost, thus completing the present invention.

[0012] In other words, the present invention includes the following embodiments.

[0013] [1] A frame for supporting a decorative element, An annular member made of metal wire has a closed end portion with a first end portion and a second end portion, A metal retaining member provided on the surface of the annular member, Equipped with, The retaining member has an opposing portion that is in close proximity to and opposite to the closing portion, The opposing portion of the holding member is positioned in close proximity to and opposite to the closing portion. The closing portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member. Empty frame.

[0014] [2] In the empty frame described in [1], where the metal wire is a jump ring, Empty frame.

[0015] [3] In the empty frame described in [1] or [2], where the closed portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member by brazing or co-brazing, Empty frame.

[0016] [4] In the empty frame according to any one of [1] to [3], where the opposing portion of the holding member is formed in a shape along the surface shape of the annular member, Empty frame.

[0017] [5] An assembly set for assembling the empty frame according to any one of [1] to [4], comprising: a material for an annular member made of a metal wire having a gap between the first end portion and the second end portion, the holding member, and an assembly set for an empty frame.

[0018] [6] A manufacturing method of the empty frame according to any one of [1] to [4], comprising: a step of preparing a material for an annular member made of a metal wire having a gap between the first end portion and the second end portion, a step of preparing the holding member, a step of integrally joining the first end portion, the second end portion, and the opposing portion of the holding member, and a manufacturing method of an empty frame.

[0019] [7] A ring having a decorative body, comprising: an annular member made of a metal wire having a closed portion where the first end portion and the second end portion are closed, and a metal holding member provided on the surface of the annular member, The decorative body held by the holding member, Equipped with, The retaining member has an opposing portion that is in close proximity to and opposite to the closing portion, The opposing portion of the holding member is positioned in close proximity to and opposite to the closing portion. The closing portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member. ring.

[0020] In the ring described in [8] [7], The aforementioned metal wire is a jump ring. ring.

[0021] In the ring described in [9] [7] or [8], The closing portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member by brazing or bonding. ring.

[0022] In any of the rings described in any one of the items

[10] [7] through [9], The opposing portion of the holding member is formed in a shape that conforms to the shape of the surface of the annular member. ring.

[0023] In any of the rings described in any one of the items

[11] [7] to

[10] , The aforementioned ornament is a gemstone. ring.

[0024] A method for manufacturing a ring according to any one of the items

[12] [7] to

[11] , The process involves preparing a material for an annular member made of a metal wire, having a gap between the first and second terminal ends, The steps include preparing the aforementioned retaining member, A step of integrally joining the first end portion, the second end portion, and the opposing portion of the holding member, The process of holding the decorative object in the holding member, Having, A method for manufacturing rings. [Effects of the Invention]

[0025] According to one aspect of the present invention, a high-quality empty ring frame that can be manufactured inexpensively and has excellent appearance and strength, an assembly set of the empty ring frame, and a method for manufacturing the empty ring frame can be provided. Furthermore, according to one aspect of the present invention, a high-quality ring that can be manufactured inexpensively and has excellent appearance and strength, and a method for manufacturing the ring can be provided. [Brief explanation of the drawing]

[0026] [Figure 1] This is a schematic exploded view illustrating an example of an empty frame according to the first embodiment. [Figure 2] This is a schematic front view illustrating an example of an empty frame according to the first embodiment. [Figure 3] This is a schematic side view illustrating an example of an empty frame according to the first embodiment. [Figure 4] (A) is an enlarged front view of a retaining member used in an example of an empty frame according to the first embodiment, and (B) is an enlarged side view of a retaining member used in an example of an empty frame according to the first embodiment. [Figure 5] This is a schematic perspective view showing an example of an assembly set of an empty frame according to the second embodiment. [Figure 6] This is a schematic perspective view showing an example of a ring according to the fourth embodiment. [Figure 7] This is a schematic perspective view showing another example of a ring according to the fourth embodiment. [Figure 8] This is a schematic exploded view showing another example of the ring according to the fourth embodiment. [Figure 9] This is an enlarged perspective view of the back side of a retaining member that holds a decorative element used in another example of the ring according to the fourth embodiment. [Modes for carrying out the invention]

[0027] [First Embodiment] <Empty frame> The empty frame according to the first embodiment is a frame that serves as a support for a decorative object. The empty frame comprises an annular member made of a metal wire and a metal retaining member provided on the surface of the annular member. The annular member has a closed portion with a first end and a second end that are closed together. The retaining member has an opposing portion that is in close proximity to and opposite the closed portion, and the opposing portion of the retaining member is positioned in close proximity to and opposite the closed portion. The closed portion is formed by integrally joining the first end, the second end, and the opposing portion of the retaining member.

[0028] In one embodiment of the empty frame according to this embodiment, the metal wire is preferably a jump ring. In one embodiment of the open frame according to this embodiment, it is preferable that the closing portion is integrally joined by brazing or bonding the first end portion, the second end portion, and the opposing portion of the holding member. In one embodiment of the empty frame according to this embodiment, it is preferable that the opposing portion of the retaining member is formed in a shape that conforms to the shape of the surface of the annular member.

[0029] Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. The present invention is not limited to the content of the embodiments. In the drawings, some parts are enlarged or reduced in size for the purpose of facilitating explanation.

[0030] Figure 1 schematically shows an exploded view of an empty frame 100 as an example of an empty frame. Figures 2 and 3 schematically show a front view and a side view of the empty frame 100, respectively. Furthermore, Figures 4(A) and 4(B) schematically show enlarged front view and enlarged side view of the retaining member 20 shown in Figures 1, 2, and 3, respectively.

[0031] The ring setting 100 is a ring setting for use in a ring. As shown in Figure 1, the ring setting 100 comprises an annular member 10 and a retaining member 20. The annular member 10 is a member for inserting a finger and is the main body of the ring setting 100, as well as the main body of the ring shown in Figure 6, which will be described later. The surface of the annular member 10 has an outer circumferential surface 10A and an inner circumferential surface 10B. The inner circumferential surface 10B of the annular member 10 is the part that the finger contacts when the finger is inserted. The inner diameter of the annular member 10 is formed to a size that allows it to be easily attached to and detached from a finger. The outer circumferential surface 10A of the annular member 10 is the part other than the inner circumferential surface 10B and is the part that is visible to the person inserting the finger or to others when the finger is inserted. When the annular member 10 is cut along the width direction, the cross-sectional shape is formed with rounded ends in the width direction on both the outer and inner circumferential surfaces, and as shown in Figure 3, it has a substantially elliptical shape.

[0032] The retaining member 20 is a base member for holding decorative objects such as gemstones (not shown). The retaining member 20 is a so-called stone setting. The retaining member 20 is equipped with six prongs 21, and is configured to be able to lock onto gemstones as decorative objects by the six prongs 21. The retaining member 20 has an upper surface side on which a decorative object (not shown) is placed, and a lower surface side on which it is joined to the annular member 10. When the decorative object (not shown) is a diamond, the upper surface side corresponds to the side on which the table portion of the diamond faces forward, and the lower surface side corresponds to the side on which the culet portion of the diamond faces. The retaining member 20 is open on the lower surface side. The lower surface side of the retaining member 20 has an opposing portion 23. The opposing portion 23 is a part that is close to the outer circumferential surface 10A of the annular member 10 and faces the annular member 10 when the retaining member 20 is placed on the annular member 10. As shown in Figure 1, the bottom side of the holding member 20 is open, so the opposing portion 23 comprises two first opposing portions 23A and two second opposing portions 23B. The two first opposing portions 23A are arranged along the circumferential direction of the annular member 10, on one end and the other end in that circumferential direction. The two second opposing portions 23B are arranged along the width direction of the annular member 10, on one end and the other end in that width direction. Here, the circumferential direction of the annular member 10 refers to the direction that is the annular direction of the annular member 10 when the empty frame 100 is viewed from the front, and the width direction refers to the direction along the direction in which a finger is inserted.

[0033] As shown in Figures 4(A) and 4(B), the retaining member 20 comprises six claw portions 21 for locking and holding a decorative body (not shown), and a frame portion 22 connecting the six claw portions 21. The claw portions 21 and the frame portion 22 are integrally formed, and the six claw portions 21 extend from the frame portion 22 toward the upper surface. The opposing portion 23 of the retaining member 20 has a curved shape that is convex in the direction in which the claw portions 21 extend, so as to conform to the outer peripheral surface 10A of the annular member 10. The claw portion 21 comprises a pair of first protrusions 21A, a pair of second protrusions 21B, and a recess 21C provided between the first protrusions 21A and the second protrusions 21B. If the ornament held by the prong portion 21 is, for example, a brilliant-cut gemstone, then the pair of first protrusions 21A are positioned in the area corresponding to the crown portion of the gemstone, the pair of second protrusions 21B are positioned in the area corresponding to the pavilion portion, and the recess 21C is positioned in the area corresponding to the girdle portion. In addition, the area near the open center of the frame portion 22 is positioned in the area corresponding to the culet portion of the gemstone.

[0034] As shown in Figures 2 and 3, the opposing portions 23 (first opposing portion 23A and second opposing portion 23B) of the holding member 20 are in direct or indirect contact with the outer circumferential surface 10A of the annular member 10, including the closed portion 13. At this position, a contact region 10C is formed where the opposing portions 23 of the holding member 20 and the outer circumferential surface 10A of the annular member 10 come into contact. The two first opposing portions 23A have a shape that follows the shape of the outer circumferential surface 10A of the annular member 10 across the contact region 10C, and the two second opposing portions 23B have a shape that follows the width direction of the annular member 10 across the contact region 10C. In the contact region 10C, the opposing portions 23 of the holding member 20 are in close proximity to the shape of the outer circumferential surface 10A of the annular member 10, so the empty frame 100 has high strength.

[0035] The retaining member 20 is made of metal. The metal material constituting the retaining member 20 is not particularly limited. Examples of metal materials constituting the retaining member 20 include the metal material used for the metal wire that forms the annular member 10. The metal material constituting the retaining member 20 may be the same type of metal material as the metal material constituting the annular member 10, or it may be a different type of metal material.

[0036] Referring again to Figure 1, as shown in Figure 1, the annular member 10 has a closed portion 13 to which a first end portion 11 and a second end portion 12 are connected. The annular member 10 is formed from a metal wire. In one embodiment, the annular member 10 is formed from a jump ring. The first end portion 11 and the second end portion 12 correspond to one end and the other end of the metal wire, respectively. By bringing the opposing portion 23 of the holding member 20 close to the outer circumferential surface 10A where the closed portion 13 of the annular member 10 is located, the holding member 20 is provided on the outer circumferential surface 10A of the annular member 10.

[0037] The closed portion 13 of the annular member is formed by integrally joining the first end portion 11, the second end portion 12 facing the first end portion 11, and the opposing portion 23 of the retaining member 20, thereby directly or indirectly connecting the first end portion 11 and the second end portion 12. As a result, the retaining member 20 is provided in close proximity to the closed portion 13 of the annular member 10. In the empty frame 100, the closed portion 13 is formed by integrally joining the first end portion 11, the second end portion 12, and the opposing portion 23 of the retaining member 20 by brazing. For this reason, the empty frame 100 includes brazing material (not shown). The first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20 are integrally joined by brazing, so that (a) brazing material (not shown) exists between the first end portion 11 and the second end portion 12, and (b) between the opposing portion 23 of the holding member 20 (first opposing portion 23A and second opposing portion 23B) and the outer circumferential surface 10A of the annular member 10 including the closing portion 13. As a result, the open frame 100 becomes highly strong. The integral joining of the first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20 is not limited to brazing, but may also be done by joint joining. An example of joint joining is laser welding. When strength is a priority, brazing is preferred for the integral joining of the first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20, while joint joining is preferred when production costs are a priority. The integral joint may involve a combination of brazing and bonding.

[0038] Here, "placed in close proximity" is a concept that encompasses both cases in which the retaining member 20 and the annular member 10 are (i) in direct contact and (ii) indirectly in contact. Case (i) is, for example, when the first end portion 11, the second end portion 12, and the retaining member 20 are attached together. Case (ii) is, for example, when the first end portion 11, the second end portion 12, and the retaining member 20 are in contact via the brazing material used when they are brazed together.

[0039] The thickness of the annular member 10 (the shortest distance from the outer surface 10A to the inner surface 10B) is not particularly limited, but one example is that it is 0.5 mm or more and 3.0 mm or less. Since the annular member 10 is formed from a metal wire, the thickness from the first end portion 11 to the second end portion 12 is nearly uniform along the annular direction. For this reason, the annular member 10 has higher dimensional accuracy and a better appearance compared to annular members obtained by casting.

[0040] The metal material used for the metal wire that forms the annular member 10 is not particularly limited. Examples of such metal materials include gold, platinum, silver, copper, titanium, and alloys mainly composed of these metals, as well as stainless steel and brass. The metal wire may also be plated with a metal material such as gold or a gold alloy, platinum or a platinum alloy on the surface of a core material formed from any of these metal materials. The annular member 10 is preferably formed from either gold or a gold alloy, or platinum or a platinum alloy. Whether the annular member 10 is made of gold or a gold alloy, or platinum or a platinum alloy, it is formed from a metal wire, so it can be manufactured inexpensively, and a high-quality open frame with excellent appearance and strength can be obtained.

[0041] In this specification, "gold" is not limited to gold with a purity of 99.99% or higher by mass, but encompasses gold with a purity of 99.00% or higher. In this specification, "gold alloy" refers to an alloy with a gold purity of less than 99.00%. A gold alloy may, for example, have a gold purity of 20% or higher, 30% or higher, 40% or higher, 50% or higher, or 70% or higher. Platinum and platinum alloys are similar concepts. Examples of gold alloys include alloys containing gold and at least one metal selected from the group consisting of copper, silver, platinum, palladium, and nickel. Examples of platinum alloys include alloys containing platinum and at least one metal selected from the group consisting of gold, rhodium, silver, palladium, nickel, and iridium.

[0042] (Effects of the first embodiment) According to this embodiment, the following effects can be achieved. (1) The open frame 100 according to this embodiment has a first end portion 11 corresponding to one end of a metal wire (for example, a jump ring), a second end portion 12 corresponding to the other end of the wire, and a holding member 20, which are integrally joined by, for example, brazing or bonding. Therefore, it has higher strength than an annular member in which only the ends of the first end portion 11 and the second end portion 12 are joined together. (2) When the empty frame 100 is joined by brazing the first end portion 11, the second end portion 12, and the retaining member 20, the brazing material used for brazing penetrates into the gap between the end face of the first end portion 11 and the end face of the second end portion 12, forming a closed portion 13. Furthermore, since brazing material is also present between the opposing portion 23 of the retaining member 20, which is positioned close to the closed portion 13, and the outer circumferential surface 10A of the annular member 10, the brazing material acts as if it were a wedge. For this reason, the empty frame 100 according to this embodiment, when formed by brazing, has higher strength. For this reason, the empty frame 100 is less prone to deformation during use. (3) In the empty frame 100 according to this embodiment, if the opposing portion 23 of the retaining member 20 is formed in a shape that conforms to the shape of the outer peripheral surface 10A of the annular member 10, the contact area 10C between the opposing portion 23 of the retaining member 20 and the outer peripheral surface 10A of the annular member 10 will be in a state that is close to matching, and the contact area between the two will be increased. In this case, the empty frame 100 according to this embodiment is more likely to have improved strength. (3) The annular member 10 constituting the open frame 100 according to this embodiment is formed from a metal wire, for example, a wire obtained by cutting a raw wire that has been processed such as wire drawing from a metal material is used as the material. As a result, the annular member 10 is less prone to the inclusion of air bubbles and the generation of air holes, as is the case when it is manufactured by the casting method. In addition, when the metal wire is manufactured, the raw wire is hardened by the action of work hardening, etc., as the metal is stretched. As a result, the base metal constituting the annular member 10 tends to be dense. Therefore, the open frame 100 according to this embodiment has higher strength and is less prone to deformation during use compared to the case when a ring manufactured by the conventional casting method is used. In addition, because the base metal constituting the annular member 10 tends to be dense, an excellent appearance is easily obtained. (4) The annular member 10 constituting the empty frame 100 according to this embodiment is formed from a metal wire and has a nearly uniform thickness in the annular direction from the first end portion 11 to the second end portion 12. For this reason, it has higher dimensional accuracy and a better appearance than annular members obtained by any of the casting, pressing, or traditional manufacturing methods. In addition, since the annular member 10 is formed from a metal wire, it is easier to make it thinner compared to the casting method. (5) The annular member 10 constituting the empty frame 100 according to this embodiment is formed from a metal wire, and therefore production efficiency is high because labor and other factors are reduced compared to the casting method and the traditional method. In addition, the annular member 10 has reduced metal loss compared to the casting method, the pressing method and the traditional method. For this reason, the empty frame according to this embodiment can be manufactured at a lower cost than the casting method and the traditional method.

[0043] [Second Embodiment] <Assembly kit for empty frame> The assembly set according to the second embodiment is an assembly set for assembling the empty frame 100 according to the first embodiment. In the following description, the differences from the first embodiment will be mainly described, and the same reference numerals will be used for components similar to those in the first embodiment, and redundant explanations will be omitted or simplified.

[0044] Figure 5 schematically shows an example of an assembly set according to this embodiment. As shown in Figure 5, the assembly set 200 has a gap 14 between the first end portion 11 and the second end portion 12, and comprises a material 40 for an annular member made of metal wire and a holding member 20 described in the first embodiment. A specific example of the holding member 20 is as described in the first embodiment.

[0045] The material 40 for the annular member is the material for forming the annular member 10 shown in Figures 1, 2, and 3. One form of the metal wire is a so-called jump ring. In this case, one form of the material 40 for the annular member formed from the metal wire is also a jump ring. Specific examples of the metal material used for the annular member 10 are as described in the first embodiment. The material 40 for the annular member has an outer circumferential surface 40A and an inner circumferential surface 40B. The first end portion 11 and the second end portion 12 of the material 40 for the annular member are the cut surfaces obtained by cutting a metal wire strand, and are cut surfaces extending from the outer circumferential surface 40A to the inner circumferential surface 40B. As will be explained later in the method for manufacturing the empty frame, the material 40 for the annular member has a shape in which a spirally wound wire strand is cut to the length of one turn. For this reason, the first end portion 11 and the second end portion 12 of the material 40 for the annular member are not facing each other, but are positioned in staggered directions. In the annular member material 40, the first end portion 11 and the second end portion 12 are not connected, and therefore a gap portion 14 is provided between the first end portion 11 and the second end portion 12. Although not shown, the annular member material 40 is not limited to this, and may be formed such that the first end portion 11 and the second end portion 12 face each other, positioned in opposing directions, and having a gap portion 14.

[0046] (Effects of the second embodiment) According to this embodiment, an assembly set 200 for assembling an empty frame 100 that exhibits the effects described in (1) to (5) of the first embodiment is obtained.

[0047] [Third Embodiment] <Manufacturing method for empty frames> The method for manufacturing the empty frame according to the third embodiment is a method for manufacturing the empty frame 100 according to the first embodiment. In the following description, the differences from the first and second embodiments will be mainly described, and the same reference numerals will be used for components similar to those in the first and second embodiments, and redundant explanations will be omitted or simplified.

[0048] A method for manufacturing the empty frame 100 includes the steps of: preparing a material for an annular member 40 (see Figure 5) made of metal wire having a gap 14 between a first end portion 11 and a second end portion 12 (step P1); preparing the metal holding member 20 (step P2); and integrally joining the first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20 (step P3).

[0049] In step P1, a material 40 for an annular member (see Figure 5) made of a metal wire as described in the second embodiment is prepared. The material 40 for annular members is an example of a material for annular members. A specific example of the material 40 for annular members is as described in the second embodiment. Preferably, step P1 includes the steps of drawing an ingot made of a metal material and subjecting it to heat treatment, or obtaining a metal wire without heat treatment, winding the obtained wire in a spiral shape along the axial direction of a cylindrical core, and cutting the spirally wound wire. If necessary, the step may further include a step of cutting the spirally wound wire to obtain a wire, and then shaping the cut wire.

[0050] Metal wires can be obtained, for example, as follows: First, a metal material of the desired type is selected from the metal materials described in the first embodiment, and an ingot is cast from the selected metal material. Next, the ingot is drawn and subjected to various heat treatments as necessary to obtain a wire rod. The cross-sectional shape of the obtained metal wire rod is, for example, elliptical. If plating is to be applied to the wire rod, the plating may be applied to the obtained wire rod, or the wire rod may be plated before drawing. The plating may also be applied to the wire rod after it has been cut. When a metal wire rod is drawn, work hardening and other effects occur, causing the wire rod to harden. Therefore, the wire rod is also hardened after it has been cut. An annular member 10 (see, for example, Figure 1) made from the wire rod obtained in this way has higher strength than an annular member obtained by the casting method.

[0051] Next, the wire obtained above is wound spirally around the outer surface of an elongated cylindrical core (not shown). Then, the wire wound spirally around the outer surface of the elongated cylindrical core is cut along the axial direction of the elongated cylindrical core using a cutting tool such as a cutting blade. As a result of cutting, a wire with a winding length equivalent to one turn of the spirally wound wire is obtained. The wire after the wire has been cut becomes the material 40 for forming the annular member 10. As mentioned above, the material 40 for the annular member shown in Figure 5 has a cut surface because it is the shape obtained by cutting the spirally wound wire. One end of the cut surface becomes the first end portion 11 of the material 40 for the annular member, and the other end of the cut surface becomes the second end portion 12 of the material 40 for the annular member. The first end portion 11 and the second end portion 12 are not facing each other and are facing in different directions. Since the first end portion 11 and the second end portion 12 are not connected, the material 40 for the annular member has a gap portion 14. As the wire obtained above is wound spirally around the outer surface of the oval-shaped core, the portion of the wire corresponding to the inner surface 40B of the material 40 for the annular member lies along the outer surface of the oval-shaped core. Therefore, if the cross-sectional shape of the wire obtained above is elliptical, the cross-sectional shape of the material 40 for the annular member can have a portion that is flatter on the inner surface 40B side compared to the outer surface 40A side.

[0052] The annular member material 40 may, if necessary, be subjected to a molding process using a processing device such as a molding device to bring the first end portion 11 and the second end portion 12 to face each other and to shape the cross-sectional shape of the annular member material 40 into the desired shape, or it may only be subjected to a process that brings the first end portion 11 and the second end portion 12 to face each other. The annular member material 40 may, if necessary, be subjected to a process that brings the first end portion 11 and the second end portion 12 to face each other by hand without using a processing device.

[0053] In step P2, a retaining member 20, as an example of a metal retaining member as described in the second embodiment, is prepared. The retaining member 20 can be obtained by various manufacturing methods, such as casting, pressing, and traditional methods. The method for obtaining the retaining member 20 is not particularly limited. From the viewpoint of design freedom, it is preferable to form the retaining member 20 by the lost-wax casting method.

[0054] In step P3, the first end portion 11 and the second end portion 12 of the annular member material 40 obtained in step P1 are integrally joined to the opposing portion 23 of the holding member 20 obtained in step P2. First, the first end portion 11 and the second end portion 12 of the annular member material 40 obtained in step P1 are brought closer together. If the first end portion 11 and the second end portion 12 of the annular member material 40 obtained in step P1 are not facing each other, the first end portion 11 and the second end portion 12 are brought closer together. If the first end portion 11 and the second end portion 12 were already facing each other in step P1, the operation of bringing the first end portion 11 and the second end portion 12 facing each other is omitted, and the first end portion 11 and the second end portion 12 are brought closer together. When the first end portion 11 and the second end portion 12 are brought closer together, they are not yet joined. Therefore, there is still a gap 14 between the first end portion 11 and the second end portion 12. After bringing the first end portion 11 and the second end portion 12 closer together, the opposing portion 23 of the retaining member 20 is positioned toward the outer circumferential surface 40A of the annular member material 40 having the gap 14 (see Figure 1, etc.). Then, the first end portion 11, the second end portion 12, and the opposing portion 23 of the retaining member 20 are integrally joined, for example, by brazing or jointing.

[0055] In the empty frame 100 shown in Figures 1, 2, and 3, the components are joined by brazing as described above. By integrally joining the first end portion 11, the second end portion 12, and the opposing portion 23 of the retaining member 20, the gap portion 14 is closed, forming the closed portion 13. This gives rise to the empty frame 100. The integral joining of the first end portion 11, the second end portion 12, and the opposing portion 23 of the retaining member 20 is not limited to brazing or joint joining. Such integral joining by brazing or joint joining is preferred from the viewpoint of simplicity.

[0056] The integral joining of the first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20 may be carried out in two stages: first, the first end portion 11 and the second end portion 12 are integrally joined to form the closed portion 13; and then the closed portion 13 and the opposing portion 23 of the holding member 20 are integrally joined to the outer circumferential surface 10A of the annular member 10 on which the closed portion 13 is formed. In this case, for example, a method can be employed in which, first, brazing material is placed on the area that will be the brazing portion between the first end portion 11 and the second end portion 12, and the brazing is performed by melting the brazing material with a torch or the like to form the closed portion 13; and then, brazing is performed by placing brazing material on the area that will be the brazing portion between the area around the closed portion 13 and the opposing portion 23 of the holding member 20 and melting the brazing material with a torch or the like to form the closed portion 13.

[0057] Alternatively, a method may be adopted in which the first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20 are joined integrally in one step. In this case, for example, a brazing material can be placed on the portion that will be brazed between the first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20, and brazing can be performed by heating the brazing material in a heating furnace and melting it. The integral joining is not limited to brazing in either the one-step or two-step case, and joint joining can also be adopted. From the viewpoint of improving productivity and enabling inexpensive manufacturing, it is preferable to join the first end portion 11, the second end portion 12, and the opposing portion 23 of the holding member 20 integrally in one step by brazing or joint joining.

[0058] In this embodiment, the method for manufacturing the empty frame 100 may include steps that are normally provided in the manufacturing process of an empty frame, such as a finishing step, in addition to the steps described above.

[0059] (Effects of the third embodiment) The manufacturing method for the empty frame 100 according to this embodiment provides the same effects as those described in (1) to (5) of the first embodiment.

[0060] [Fourth Embodiment] <Ring> The ring according to the fourth embodiment has a decorative element. The ring comprises an annular member made of a metal wire, a metal retaining member provided on the surface of the annular member, and a decorative element held by the retaining member. The annular member has a closed portion with a first end and a second end closed together. The retaining member has an opposing portion that is in close proximity to and opposite the closed portion, and the opposing portion of the retaining member is positioned in close proximity to and opposite the closed portion. The closed portion is formed by integrally joining the first end, the second end, and the opposing portion of the retaining member.

[0061] In one embodiment of the empty frame according to this embodiment, the metal wire is preferably a jump ring. In one embodiment of the ring according to the fourth embodiment, it is preferable that the closing portion is integrally joined by brazing or bonding the first end portion, the second end portion, and the opposing portion of the retaining member. In one embodiment of the ring according to the fourth embodiment, it is preferable that the opposing portion of the retaining member is formed in a shape that conforms to the shape of the surface of the annular member.

[0062] In one embodiment of the ring according to the fourth embodiment, the ornament is preferably a gemstone.

[0063] Hereinafter, an embodiment that is a preferred example of the present invention will be described with reference to the drawings. The present invention is not limited to the content of the embodiments. In the drawings, some parts are enlarged or reduced in size for the sake of clarity. In the following description, the differences from the first to third embodiments will be mainly described, and the same reference numerals will be used for components similar to those in the first to third embodiments, and redundant explanations will be omitted or simplified.

[0064] (First aspect) The first aspect of the ring according to the fourth embodiment is a ring 300 using the empty setting 100 described in the first embodiment. Figure 6 schematically shows an example of a ring according to this embodiment. As shown in Figure 6, the ring 300 comprises an empty setting 100 and a decorative element 30. A specific example of the empty setting 100 is as described in the first embodiment.

[0065] In the ring 300, the ornament 30 is made of a brilliant-cut diamond used as a gemstone. The diamond has a girdle portion that forms the outer circumference of the diamond, a crown portion on the surface side of the girdle portion, and a pavilion portion on the bottom side of the girdle portion. The ornament 30 is held in place by the retaining member 20 by being locked in place by six prongs 21. The ornament 30 is held in place by the retaining member 20 by the crown portion contacting the first protrusion 21A of each prong 21, the pavilion portion contacting the second protrusion 21B, and the girdle portion contacting the recess 21C of each prong 21. The ring 300 is used by inserting a finger into the annular member 10. In normal use, the ring 300 is used so that when a finger is inserted into the annular member 10, the ornament 30 faces the back of the hand.

[0066] (Second aspect) A second embodiment of the ring according to the fourth embodiment is a ring 310 in which a retaining member 50 is used instead of the retaining member 20 described in the first embodiment. An example of the ring according to this embodiment is schematically shown in Figure 7, and an exploded view of the example of the ring according to this embodiment is schematically shown in Figure 8. As shown in Figures 7 and 8, the ring 310 comprises an empty frame 110 having the annular member 10 described in the first embodiment and the retaining member 50, and a first decorative body 31 and a second decorative body 32 held by the retaining member 50. The retaining member 50 comprises a first decorative body retaining portion 50A that holds one first decorative body 31, and a second decorative body retaining portion 50B that holds a plurality of second decorative bodies 32 arranged to surround one first decorative body 31. As shown in Figure 7, the ring 310 has 12 second decorative bodies 32. The first decorative body retaining portion 50A has four claw portions 51. The first decorative element 31 is held by a first decorative element holding part 50A which has four claws 51. The second decorative element holding part 50B comprises twelve second decorative element mounting members 55 and twelve outer claws 54A and twelve inner claws 54B provided on the second decorative element mounting members 55. One outer claw 54A is provided on the outer circumference of the second decorative element mounting member 55 on the side facing the first decorative element 31, spanning between two second decorative element mounting members 55. One inner claw 54B is provided on the outer circumference of the second decorative element mounting member 55 on the side opposite to the first decorative element 31, spanning between two second decorative element mounting members 55. Each second decorative element 32 is held by two outer claws 54A and two inner claws 54B.

[0067] In the ring 310, the first ornament 31 and the second ornament 32 are gemstones, with the first ornament 31 being the so-called center stone as the first gemstone, and the second ornament 32 being the so-called side stone as the second gemstone. The retaining member 50 is the so-called stone setting. The first ornament 31 and the second ornament 32 are both made of brilliant-cut diamonds. The first ornament 31 is the main diamond, and the second ornament 32 is the so-called melee diamond. The retaining member 50 is provided on the outer circumferential surface 10A of the annular member 10 such that the culet portion of the first ornament 31, held by the first ornament retaining part 50A, is positioned to correspond to the closing portion 13 of the annular member 10. The first ornament 31 is locked in place by its four prongs 51 contacting the girdle portion of the first ornament 31 and extending along from the crown portion to the table portion. The second decorative body 32 has a pavilion portion housed and supported inside the second decorative body mounting member 55, and the girdle portion of the second decorative body 32 is locked in place by outer claws 54A and inner claws 54B provided on the outer circumference of the second decorative body mounting member 55.

[0068] As shown in Figure 8, the retaining member 50 has a frame portion 52 on its bottom side, and the frame portion 52 has an opposing portion 53 that faces the outer circumferential surface 10A of the annular member 10. The opposing portion 53 of the retaining member 50 is provided at a position where the annular member 10 has a closed portion 13, so as to be in direct or indirect contact with the outer circumferential surface 10A of the annular member 10. The outer circumferential surface 10A of the annular member 10 and the opposing portion 53 of the retaining member 50 form a contact region 10C at a position where they are in direct or indirect contact.

[0069] Figure 9 shows an enlarged perspective view of the rear side of the holding member 50 in which the first decorative element 31 and the second decorative element 32 shown in Figures 7 and 8 are held. As shown in Figure 9, the holding member 50 comprises a frame portion 52 located on the bottom side of the holding member 50, a first decorative element holding portion 50A for holding the first decorative element 31 provided on the upper side of the frame portion 52, and a second decorative element holding portion 50B for holding the second decorative element 32 provided on the upper side of the frame portion 52 and around the first decorative element holding portion 50A. The first decorative element holding portion 50A comprises an annular frame portion 56 for the first decorative element holding portion 50A and four claw portions 51 extending from the frame portion 56 for the first decorative element holding portion 50A. The second decorative element holding portion 50B comprises a cylindrical second decorative element mounting member 55 with both ends open, and outer claw portions 54A and inner claw portions 54B provided on the outer circumference of the second decorative element mounting member 55. The claw portion 51 extends from the frame portion 56 for the annular first decorative body holding portion 50A toward the inner claw portion 54B, contacts the inner claw portion 54B, and then extends toward the upper surface. The outer claw portion 54A provided on the second decorative body mounting member 55 extends toward the upper surface from the frame portion 52, while the inner claw portion 54B does not extend from the frame portion 52 but extends toward the upper surface from the second decorative body mounting member 55.

[0070] The frame portion 52 of the holding member 50 has rounded corners and is rectangular in shape with an opening, and has a curved portion in part. The frame portion 52 includes an opposing portion 53 that faces the outer peripheral surface 10A of the annular member 10. The opposing portion 53 includes two first opposing portions 53A arranged along one end and the other end in the circumferential direction of the annular member 10, and two second opposing portions 53B arranged along one end and the other end in the width direction of the annular member 10. The two first opposing portions 53A are each formed in a shape that is convex with a small radius of polarization toward the upper surface, so as to conform to the width direction shape of the annular member 10. The two second opposing portions 53B are each formed in a shape that is convex with a large radius of polarization, so as to become gentler toward the upper surface, so as to conform to the circumferential shape of the annular member 10. The two first opposing portions 53A and the two second opposing portions 53B are positioned on the outer circumferential surface 10A of the annular member 10, so that in the contact region 10C (see Figure 8), the contact region 10C between the opposing portion 53 of the holding member 50 and the outer circumferential surface 10A of the annular member 10 is nearly identical. As a result, the ring 310 has high strength.

[0071] (Effects of the fourth embodiment) Since the ring 300 according to this embodiment uses the empty frame 100 according to the first embodiment, a ring 300 can be obtained that can achieve the effects (1) to (5) described in the first embodiment. Furthermore, since the ring 310 according to this embodiment uses the annular member 10 provided in the empty frame 100 according to the first embodiment, a ring 310 can be obtained that can achieve the effects (1) to (5) described in the first embodiment. Moreover, according to this embodiment, the following effects are also achieved. (6) In the rings 300 and 310 according to this embodiment, when resizing, for example, a portion of the annular member 10 (for example, a portion that is the part furthest from the closed portion 13 of the annular member 10) is cut to reduce or increase the diameter of the annular member 10, and the cut surfaces are joined together by brazing or jointing. Even in this case, since the annular member 10 is formed from a metal wire (for example, a jump ring), a ring 300 or 310 with higher strength can be obtained compared to when it is formed by a casting method or the like.

[0072] [Fifth Embodiment] <How to manufacture a ring> The method for manufacturing the ring according to the fifth embodiment is a method for manufacturing the ring 300 according to the fourth embodiment. In the following description, the differences from the first to fourth embodiments will be mainly described, and the same reference numerals will be used for components similar to those in the first to fourth embodiments, and redundant explanations will be omitted or simplified.

[0073] The method for manufacturing the ring 300 according to the fifth embodiment includes the steps of: preparing a material 40 for an annular member made of metal wire having a gap 14 between a first end portion 11 and a second end portion 12 (step P1A); preparing the metal retaining member 20 (step P2A); integrally joining the first end portion 11, the second end portion 12, and the opposing portion of the retaining member 20 (step P3A); and holding the decorative body 30 on the retaining member 20 (step P4A).

[0074] The method for manufacturing a ring according to the fifth embodiment is a method for manufacturing a ring 300 according to the first aspect of the fourth embodiment using the empty frame 100 described in the first embodiment. Therefore, steps P1A to P3A are the same as steps P1 to P3 in the method for manufacturing the empty frame 100 described in the third embodiment, and specific examples of each step are as described above.

[0075] In step P4A, the decorative element 30 is held by the retaining member 20. First, the decorative element 30 is fitted into the inside of the six claw portions 21 provided on the retaining member 20. At this time, the decorative element 30 is fitted into the retaining member 20 such that the crown portion corresponds to the first convex portion 21A of the six claw portions 21, the pavilion portion corresponds to the second convex portion 21B, and the girdle portion corresponds to the recess 21C. Next, the decorative element 30 is locked in place by tilting the inside of the six claw portions 21 toward the decorative element 30 so that the crown portion abuts against the first convex portion 21A, the pavilion portion abuts against the second convex portion 21B, and the girdle portion abuts against the recess 21C. This prevents the decorative element 30 from coming off the ring unintentionally, and a ring 300 that is stably held by the retaining member 20 is obtained.

[0076] In this embodiment, the method for manufacturing the ring 300 may include steps that are normally provided in the ring manufacturing process, such as a finishing step, in addition to the steps described above.

[0077] Here, the manufacturing method for producing the ring 310 according to the second aspect of the fourth embodiment is the same as the processes P1 to P3 in the manufacturing method of the empty frame 100 described in the third embodiment, from process P1A to P3A in this embodiment. Process P4A is similar to process P4A in this embodiment, except that it is a process in which the first decorative body 31 and the second decorative body 32 are held in the holding member 50 by locking the first decorative body 31 with four claws 51 and locking one second decorative body 32 with two outer claws 54A and two inner claws 54B to lock 12 second decorative body 32.

[0078] (Effects of the fourth embodiment) Since the rings 300 and 310 according to this embodiment use the empty frame 100 according to the first embodiment, a method for manufacturing rings 300 and 310 that can achieve the effects (1) to (5) described in the first embodiment can be obtained. Furthermore, a method for manufacturing rings 300 and 310 that can achieve the effect (6) described in the fourth embodiment can be obtained.

[0079] [Variations of the Embodiment] Although the empty frame and ring according to the above embodiment have been described above with reference to the drawings, the present invention is not limited to the above-described embodiment, and any modifications or improvements that can achieve the objectives of the present invention are included in the present invention.

[0080] For example, in the empty frame 100 described in the first embodiment above, the cross-sectional shape when the annular member 10 is cut along the width direction is, as an example, a shape with rounded edges near both ends in the width direction on both the outer and inner circumferential surfaces, but it is not limited to this and may be any known shape.

[0081] For example, in the empty frame 100 described in the first embodiment and the rings 300 and 310 described in the fourth embodiment, the desired content may be engraved on any part of the inner circumferential surface 10B of the annular member 10.

[0082] For example, in the empty frame 100 according to the first embodiment and the ring 300 according to the first aspect of the fourth embodiment described above, examples having six prongs 21 were explained, but the invention is not limited to this. The empty frame 100 and the ring 300 may have a retaining member 20 with six prongs 21 instead of, for example, a retaining member with two prongs, a retaining member with four prongs, or a retaining member with eight prongs. The number of prongs 21 of the retaining member 20 can be changed, for example, between two and eight. Furthermore, the empty frame may have a retaining member without prongs. Moreover, the structure of the retaining member 50 of the ring 310 according to the second aspect of the fourth embodiment is not limited to the configuration described above. The structure of the retaining member used in the empty frame and the ring may be configured according to the type of gemstone as an example of a decorative element, the method of setting the gemstone, and the intended design.

[0083] For example, in the fourth embodiment described above, brilliant-cut diamonds were used as the ornament 30, the first ornament 31 as the first gemstone, and the second ornament 32 as the second gemstone, but the invention is not limited to this. The ornament 30, the first ornament 31, and the second ornament 32 may be gemstones other than diamonds, such as natural gemstones, treated gemstones, synthetic gemstones, man-made gemstones, and imitation gemstones. Imitation gemstones also include gemstones made of plastic. The ornamental body 30, the first ornamental body 31, and the second ornamental body 32 may specifically be made of gemstones such as emerald, ruby, sapphire, amethyst, opal, topaz, peridot, aquamarine, citrine, ametrine, garnet, tsavorite, demantoid, mandarin garnet, tourmaline, rubellite tourmaline, lean tourmaline, Paraiba tourmaline, yellow tourmaline, blue tourmaline, multicolor tourmaline, tanzanite, lapis lazuli, sapphire, quartz, jade, zircon, iolite, spinel, fire opal, moonstone, alexandrite, chrysoberyl, kunzite, beryl, morganite, chrome diopside, andalusite, amber, turquoise, coral, agate, onyx, bloodstone, jasper, and pearls. Furthermore, in the ring 310 according to the second aspect of the fourth embodiment, the first ornament 31 and the second ornament 32 are each made of diamonds, but are not limited to this, and may be made of the same type of gemstone or different types of gemstones. Also, in the rings 300 and 310 according to the fourth embodiment, if the gemstones are cut, the type of cut of the gemstones may be any cut that is desired from the viewpoint of aesthetics, etc.

[0084] Ornaments other than gemstones can also be used. For example, ornaments other than gemstones include forms that mimic the faces of cartoons, animations, and animals, as well as forms that mimic the entire bodies of cartoons, animations, and animals. Specifically, examples include dolls of cartoons, animations, and animals. When ornaments other than gemstones are used, the holding member only needs to be formed in a shape that can hold the ornament.

[0085] For example, in the first and second embodiments described above, a ring setting 100 was used as an example, but the invention is not limited to this. For example, it can also be applied to ring settings used for jewelry other than rings, such as pendant tops, pendant heads, and charms. [Explanation of symbols]

[0086] 10...Annular member, 10A, 40A...Outer surface, 10B, 40B...Inner surface, 11...First end part, 12...Second end part, 13...Closing part, 14...Gap part, 20, 50...Holding member, 21...Claw part, 23...Opposite part, 23A...First opposite part, 23B...Second opposite part, 30...Decorative body, 31...First decorative body, 32...Second decorative body, 40...Material for annular member, 50A...First decorative body holding part, 50B...Second decorative body holding part, 51...Claw part, 52...Frame part, 53...Opposite part, 53A...First opposite part, 53B...Second opposite part, 54A...Outer claw part, 54B...Inner claw part, 55...Second decorative body mounting member, 100, 110...Empty frame, 200...Assembly set, 300, 310...Ring.

Claims

1. An empty frame for supporting a decorative element, An annular member made of metal wire has a closed end portion with a first end portion and a second end portion, A metal retaining member provided on the surface of the annular member, Equipped with, The retaining member has an opposing portion that is in close proximity to and opposite to the closing portion, The opposing portion of the holding member is positioned in close proximity to and opposite to the closing portion. The closing portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member. Empty frame.

2. In the empty frame described in claim 1, The aforementioned metal wire is a jump ring. Empty frame.

3. In the empty frame according to claim 1 or claim 2, The closing portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member by brazing or bonding. Empty frame.

4. In the empty frame according to claim 1 or claim 2, The opposing portion of the holding member is formed in a shape that conforms to the shape of the surface of the annular member. Empty frame.

5. An assembly set for assembling the empty frame described in claim 1 or claim 2, A material for an annular member made of a metal wire, having a gap between the first and second terminal ends, The retaining member and, Equipped with, An assembly kit for empty frames.

6. A method for manufacturing an empty frame according to claim 1 or claim 2, The process involves preparing a material for an annular member made of a metal wire, having a gap between the first and second terminal ends, The steps include preparing the aforementioned retaining member, A step of integrally joining the first end portion, the second end portion, and the opposing portion of the holding member, Having, A method for manufacturing empty frames.

7. A ring having an ornament, An annular member made of metal wire has a closed end portion with a first end portion and a second end portion, A metal retaining member provided on the surface of the annular member, The decorative body held by the holding member, Equipped with, The retaining member has an opposing portion that is in close proximity to and opposite to the closing portion, The opposing portion of the holding member is positioned in close proximity to and opposite to the closing portion. The closing portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member. ring.

8. In the ring according to claim 7, The aforementioned metal wire is a jump ring. ring.

9. In the ring according to claim 7 or claim 8, The closing portion is formed by integrally joining the first end portion, the second end portion, and the opposing portion of the holding member by brazing or bonding. ring.

10. In the ring according to claim 7 or claim 8, The opposing portion of the holding member is formed in a shape that conforms to the shape of the surface of the annular member. ring.

11. In the ring according to claim 7 or claim 8, The aforementioned ornament is a gemstone. ring.

12. A method for manufacturing a ring according to claim 7 or claim 8, The process involves preparing a material for an annular member made of a metal wire, having a gap between the first and second terminal ends, The steps include preparing the aforementioned retaining member, A step of integrally joining the first end portion, the second end portion, and the opposing portion of the holding member, The process of holding the decorative object in the holding member, Having, A method for manufacturing rings.

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