JP3015500U - Arm ring - Google Patents

Abstract

(57) [Summary] [Structure] An open ring is formed with a tube made of copper or brass and plated with precious metal on the surface. Magnets are placed on both the end of the ring and the bottom of the blind hole, or magnets are placed on one side and iron pieces on the other side, and the decorative pieces are held on top by magnetic attraction. [Effect] The ring end decoration piece may be made of metal or another material, and in addition to the material, the presence or absence of plating, the color, and the shape can be changed, and a plurality of different pieces can be prepared and detached and replaced. In any case, the magnetic action of the magnet is obtained in the same manner as the conventional product.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bracelet having a magnet inside, a surface made of precious metal, and an accessory piece of precious metal, jewelry, or balls.

[0002]

[Prior art]

 It is believed that keeping magnets close to the human body has the effect of promoting blood circulation and preventing stiff shoulders, so several magnets, such as those connected to an arm ring, are used. However, conventional products of this type are not so beautiful because they are made by forming a metal holder by pressing a metal plate and connecting the plated product to the watch belt. It was

Therefore, the inventor has considered a more beautiful arm ring with a magnet, which has a value as a decorative article, and has already disclosed it (utility model registration No. 3009795). The arm ring with magnets forms an open ring by placing a magnet in the middle of a copper or brass tube, and at both ends of the tube is a copper or brass ring with a recess on the inner surface of the ring. The sphere is provided, the entire surface is plated with a precious metal, and the magnet is embedded in the recess of the sphere.

The arm ring with magnets has the same appearance as a normal bracelet, is beautiful, and has the elegance and luxury of precious metals. In addition, the magnet is located close to the arm, and the two magnets inside the sphere and the magnet inside the tube are in a corresponding relationship, which has the advantage that the function of producing magnetism can be reliably obtained.

However, as an ornament, the appearance of plated precious metals is uniform, and it is difficult to make changes.

[0006]

[Problems to be Solved by the Invention] The object of the present invention is to make a bracelet with magnets based on the appearance of precious metals, and also to use precious metals, jewels or balls, which makes it different from the precious metals one color. The purpose is to provide a decoration that can be exchanged according to preference.

[0007]

[Means for Solving the Problems]

 The bracelet of the present invention is shown in the exploded view of FIG. 1 and the plan view of FIG. 2, and the details of the main parts are shown in FIGS. 3 and 4 by using a copper or brass tube (3). An open ring (1) formed and plated with a precious metal (4) on the surface, and a ring end decoration piece (2, 2) with a blind hole (5) that is removable by covering both ends of this ring. And the magnets (6A, 6B) are fixed both inside the ring end and at the bottom of the blind hole (5) so that the magnetic poles of both magnets are attracted to each other, or on one side the magnet (6 ) Is fixed to the other end, and the iron piece (7) is fixed to the other, and the ring end decoration piece is held at the ring end by magnetic attraction between the magnets or between the magnet and the iron piece.

Here, the “iron piece” means a ferromagnetic material attracted by a magnet.

It is suitable that the tube 3 made of copper or brass has an outer diameter of 4 mm inside and outside and a wall thickness of about 0.5 mm.

The plating can be done according to known techniques. The noble metal forming the surface plating layer is typically 18 gold, 24 gold, platinum, silver or the like. In addition, the above alloys of precious metals are of course useful, and alloys containing rhodium can also be used. The plating thickness is selected from the range of 5 to 200 μm. Normally, 10 μm is enough, but in order to obtain a solid texture, a thickness of 100 μm to 150 μm is desired. In that case, plating may be performed by the electroforming method.

The material of the ring end decoration piece is arbitrary, but in order to exert the magnetism of the magnet arranged in the ring end portion and / or the decoration piece to the outside, it should be a non-magnetic material. In the case of metal, copper or brass is preferable as well as the material of the tube instead of iron or steel, and non-magnetic stainless steel can also be used. In the case of copper or brass, it is preferable to carry out plating (4) of a noble metal. The noble metal may or may not be the same as that applied to the surface of the tube.

[0012] The end piece of the ring end may be made of non-metal, and its material is gem such as synthetic ruby, synthetic sapphire, zirconia, or jade such as jade and crystal, and glass, ceramics, plastics, and the like. You can choose from a range of things. When a transparent material is used, it is preferable to appropriately color the circumference of the magnet or iron piece inside. The magnet and the iron piece may be fixed by using an appropriate adhesive (8) such as epoxy resin as shown in FIGS. 3 and 4, for example.

The shape of the ring-end decorative piece (2) is most typically spherical as shown, but may be columnar or prismatic. In the case of a cylinder or a prism, the axis of the tube of the ring and the axis of the columnar body may be aligned, or both may be arranged substantially orthogonal to each other. Of course, other shapes can be selected.

If the cross section of the end of the tube (3) is circular and the cross section of the blind hole of the ring end decoration piece (2) is also circular, the ring end decoration piece is held in a rotatable form. If rotation is not desired, the cross section of the end of the tube (3) should be elliptical or polygonal, and the cross section of the blind hole (5) of the ring end decoration piece (2) should correspond to this. It is good to prevent

Whether the cross-section is circular and rotatable, or non-circular and non-rotatable, it is preferred that the ring ends and the blind holes of the overlying decorative piece both give a slight taper. . That is, the diameter of the ring end is reduced toward the end, and the diameter of the blind hole is a taper correspondingly reduced toward the depth of the hole. Due to such taper, the ring end and the ring end decoration piece can be brought into close contact with each other when magnetically attracted.

Since the magnet is preferably small and strong, it is preferable to use a rare earth magnet, for example, an Sm-Co magnet or an Nd-Fe-B magnet.

The magnets may be arranged at the ring end as described above, at the bottom of the blind hole of the ring end decoration piece, or better at both, but arranged at only one side. If so, it is advantageous to place it towards the end of the ring. This makes it easy to prepare a plurality of sets of ring end decoration pieces for one ring and exchange and use them. In some cases, another magnet (9) can be placed in the tube, as shown in FIG. Since this magnet is independent of the end piece of the ring, it can have a magnetic pole direction (radial direction of the ring in the illustrated example) that is independent of the direction of the magnetic pole required to hold it.

[0018]

[Function and effect of device]

 The bracelet of the present invention is a type in which a decorative piece is attached to both ends of an open ring, and since the decorative piece at the end of the bracelet can be attached and detached by using magnetic attraction, the user's mind and TPO can be improved. Depending on the situation, the arm ring can be changed by exchanging the ring end decoration piece. That is, it is possible to appropriately change the shape, the color and gloss of the surface, the material, and the like of the ring-end decorative piece and attach it to the arm. In some cases, the ring end trim can be removed and only the ring can be used.

The magnetism of the magnet acts through the material of the tube forming the ring and the ring end decoration piece. If desired, the configuration of the above-mentioned device (utility model registration No. 3009795) can be adopted and a third magnet can be placed inside the tube.

[Brief description of drawings]

FIG. 1 is a developed side view of an arm ring of the present invention.

FIG. 2 is a plan view of the arm ring of FIG.

FIG. 3 is an enlarged cross-sectional view showing one mode of a main part of the arm ring of FIG.

FIG. 4 is an enlarged cross-sectional view showing another aspect of the main part of the arm ring of FIG.

[Explanation of symbols]

 1 Open ring 2 (2A, 2B) Ring end decoration piece 3 Tube 4 Plating 5 Blind hole 6 (6A, 6B) Magnet 7 Iron piece 8 Adhesive 9 Another magnet

Claims (8)

[Scope of utility model registration request] 1. An open ring (1) formed by a tube (3) made of copper or brass and having a surface plated with a noble metal (4), and a blind, which is removable by covering both ends of this ring. And a ring end decorative piece (2, 2) having a hole (5),
A magnet (6) is provided both inside the annulus and at the bottom of the blind hole (5).
A, 6B) are arranged so that the magnetic poles of both magnets are attracted to each other, or the magnet (6) is fixed on one side and the iron piece (7) is fixed on the other side. An arm ring characterized in that the ring end decoration piece is held at the ring end by magnetic attraction of. 2. The ring end decoration piece is made of a non-magnetic metal spherical body (2
The arm ring according to claim 1, wherein the arm ring is processed into A) and the surface is plated with a noble metal (4). 3. The bracelet according to claim 1, wherein the ring-end decorative piece is a spherical body (2B), a columnar body, or a prismatic body made of a jewel or a ball. 4. The end of the tube (3) is circular in cross section, and the blind hole of the ring end decoration piece (2) is also circular cross section, and the ring end decoration piece is rotatable while being held at the ring end. Item 3. The arm ring according to item 1. 5. The end of the tube (3) has a non-circular cross section and the blind hole of the end piece (2) of the ring end has a corresponding cross section so that it cannot rotate when held on the end of the ring. Claim 1
The described armlet. 6. The noble metal forming the plating layer is 18
-24 The arm ring according to any one of claims 1 to 5, which uses gold, platinum or silver. 7. The Sm—Co magnet or N is used as the magnet.
The arm ring according to claim 1, wherein a d-Fe-B magnet is used. 8. The arm ring according to claim 1, wherein two or more sets of ring end decoration pieces are prepared for one ring.