JPH0433201B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for connecting irregularly shaped connecting pieces such as magatama beads made of precious metals such as gold, silver, and platinum.
The present invention relates to a connecting accessory such as a necklace, an arm ornament, etc., which can be sequentially connected in a state in which the connecting pieces are in contact with each other while exposing the contours of the connecting pieces, and a method for manufacturing the same.

[Conventional technology]

As a conventional connecting accessory of this type,
A method for manufacturing a chain band described in Japanese Utility Model Publication No. 37335, and a chain for personal use described in Japanese Utility Model Application Publication No. 109419/1988 are known.

The former involves connecting two main bodies with two connections, protruding from the opposite side of each main body a protrusion wider than the spacing between the connections, and folding back the connections to overlap the two main bodies. A large number of unit bodies are sequentially stitched together by making up a unit body and inserting a protruding piece of the other unit body into the connecting bent part of one unit body.

The latter forms an element by forming an expansion gap on both the upper and lower sides, and by folding an elongated metal ring with symmetrically formed plate parts on both sides from the center of the upper and lower sides and overlapping the plate parts to form a single element. The above folded part of
Elements are connected one after another by inserting them into the expansion gaps of other elements.

[Problem to be solved by the invention]

In the above-mentioned connected jewelry, the former main body and the latter metal ring are only flat plates polymerized into a chain shape, so they have the disadvantage of lacking a three-dimensional effect and lacking in volume.

In addition, the former has the disadvantage that both the connections and protrusions are continuous on both sides of the main body and are completely visible from the outside, which detracts from the shape of the main body and lacks the interest of the shape as an accessory. It was hot.

Furthermore, in the latter case, each element itself is connected and the whole can be seen from the outside, so the shape of each element is an important point. However, in order to enhance its aesthetic appearance, it had the disadvantage of being limited in shape.

The present invention eliminates the above-mentioned drawbacks of conventional connecting accessories, and also makes the connecting parts for connecting each connecting piece inconspicuous so that the shapes of both the left and right pieces that constitute the main body of the connecting piece are highlighted. The purpose is to provide a connected accessory at a low price that emphasizes the three-dimensional appearance of this part to give it a sense of volume, and that has a luxurious aesthetic appearance without the risk of each connected piece separating after the product is completed. .

[Means to solve the problem]

The present invention relates to means for a connecting accessory to achieve the above-mentioned object, and the means is connected at a narrow part to a connecting part having upper and lower protrusions, and has left and right parts formed in a symmetrical bulge shape. Fold both pieces back at the center of the connecting part so that the bulging side becomes the outer surface, bring the outer peripheral edges of both left and right pieces into contact with each other, form an insertion hole in a part of the contact part, and then create a connecting piece. It is characterized in that, after inserting the connecting portion of the next connecting piece into the insertion hole of one connecting piece, the contact surface portion of the inserted connecting piece is brazed to connect the connecting pieces.

In addition, regarding the manufacturing method for manufacturing this connected accessory, the method includes forming a flat plate with a bulge portion that becomes both left and right pieces, and a recess portion that bulges out continuously from the bulge portion and serves as an insertion hole. is symmetrically bulged out on one side of a flat plate, and a connecting part having protrusions on both the left and right sides and the upper and lower sides is punched out, and the hollow part is used as an insertion hole, and the bulging side is used as the outer surface, and the connecting part is punched out. Form a connecting piece by folding back from the center of the left and right pieces so that the outer peripheral edges of both left and right pieces come into contact with each other, insert the connecting part of the next connecting piece into the insertion hole of one connecting piece, and then insert the connecting part of the inserted connecting piece. It is characterized by being connected by brazing.

[Effect]

The left and right pieces, which are the main shape of each connecting piece of the present invention, are formed in advance into a bulging shape, and are folded back with the bulging side outside and overlapped, so that the outline of each connecting piece is hidden. Since the connecting pieces are arranged in a state where they are in contact with each other without losing the beauty of each connecting piece, it is possible to create a shape with a rich three-dimensional effect due to the arranged bulging sides.

In addition, the connecting part that connects each connecting piece has protrusions formed on the top and bottom of the folded part, and after inserting into the insertion hole of the next connecting piece, the overlapping contact surface is brazed. There is no risk that the connecting part will come out of the insertion hole.

Furthermore, since the connecting part is accommodated in the insertion hole of the other connecting piece, it cannot be seen from the outside.Therefore, all that can be seen from the outside is the main body made up of both the left and right pieces, and the shapes of the left and right pieces are different from each other. is the shape of each connecting piece of the connected accessory, so there is no loss of interest due to the addition of unnecessary shapes.

Moreover, when forming the flat plate into a bulging shape, the insertion hole is formed at the same time as the recessed part is punched out on both the left and right pieces, and is formed as an inwardly recessed part on the edge of both the left and right pieces. , without the need for a formation process and without generating burrs or the like toward the outside surface.
It is something that can be formed.

〔Example〕

Next, the steps of the manufacturing method of the present invention will be explained with reference to FIGS. 1 to 7.

Although Fig. 1 shows a plate 1 made of a precious metal material such as gold, silver, or platinum, this plate 1 may be made of a material other than precious metals, and in this case, individual connecting pieces as shown in Fig. 6 may be used. After A is formed, it is plated with precious metal.

As shown in FIG. 2, a bulge 2 is formed on one side of the plate 1 by a pressurizing process such as pressing.

This bulging portion 2 is formed symmetrically, and a bulging portion 2a to become a recessed groove 3 is formed in a part of the bulging portion 2 by the punching process shown in FIG. Formed symmetrically.

FIG. 3 shows the shape punched out by a press after the press working shown in FIG. 4a and a right piece 4b are formed, and the left piece 4a and right piece 4b are connected to a connecting part 5.
are symmetrically connected.

The shape of the connecting portion 5 is substantially circular in plan due to the formation of protruding portions on the upper and lower sides thereof, and the bulging portion 2a becomes a recessed groove 3 because its top portion is punched out.

Next, press processing is performed on the left and right centers of the connecting portion 5.
Alternatively, by cutting, a groove 6 for bending the connecting part 5 is formed, and as shown in FIG. As shown in FIG. 6, the peripheral edges of the left piece 4a and the right piece 4b are brought into contact with each other.

Due to this contact surface, the groove 3 of the left piece 4a and the right piece 4b
The recessed groove 3 contacts the insertion hole 7, and forms one connecting piece A.

Insert the bent connecting part 5 of this connecting piece A into the insertion hole 7 of another connecting piece A as shown in FIG. 7a,
As shown in Figure b, the individual connecting pieces A are assembled.

For this insertion, since the connecting part 5 is approximately circular in plan, when it is bent from the groove 6, the folded part becomes the widest, and the connecting part 5 is continuous with the left piece 4a and the right piece 4b. Since the narrow portion of the connecting portion 5 is inserted into the insertion hole 7, the inserted connecting portion 5 will not come out from the insertion hole 7.

Then, the connecting piece A in FIG. 7b is brazed and joined along the contact surface between the left piece 4a and the right piece 4b shown in FIG. 6, and the left piece 4a and the right piece 4b are integrated. The connecting portions 5 of the other similarly configured connecting pieces B are connected without coming out from the insertion hole 7.

In addition, in the case of forming the joints from a material other than precious metals, plating with the precious metal is performed after brazing, and in this way, many connecting pieces A are arranged in a state in which the outlines are in contact with each other without being blocked, and are successively connected. As shown in Fig. 8, this is a connected accessory with a high-class aesthetic appearance.

Therefore, in this connecting accessory, individual connecting pieces are formed from a flat plate by a pressurizing process such as pressing, and each connecting piece is formed with an insertion hole 7 and a connecting part 5 as a connecting means. These are a left piece 4a and a right piece 4b that are visible from the outside, but are hidden and cannot be seen from the outside.

Therefore, the shape of the left piece 4a and the right piece 4b, such as a magatama, appears to be connected,
This prevents the shape from being distorted due to visible connecting parts.

〔Effect of the invention〕

As described above, in the present invention, the connecting portion for connecting each connecting piece and the insertion hole are hidden within both the left and right pieces that form the main external shape of each connecting piece, and are not visible from the outside. The shapes of both the left and right pieces appear to be connected.

In addition, both the left and right pieces are formed in a bulging shape and are in contact with each other so that the bulging side becomes the outer surface.The bulging creates a three-dimensional shape, and the beautiful contours of each connecting piece overlap. The strands are connected in a different sequence from the existing strands.

Coupled with the fact that the connecting portions and the like are not visible, it is possible to create a connected accessory with a rich sense of volume.

In addition, the part of the connecting part that is inserted into the insertion hole has a tapered end, and after being inserted into the insertion hole, the contact surfaces of both the left and right pieces are brazed, so that the connecting part does not come out of the insertion hole. This eliminates the fear that the connected accessories will come apart and fall apart.

Furthermore, in the process of bulging out both the left and right pieces, the insertion hole is formed with a concave part that bulges out lower than the bulge, which is continuous with the bulge part, and this is formed at the same time as punching out both the left and right pieces. Since it is punched out, the burr produced during punching can be on the side opposite to the bulging side.

This side faces the inner surface of the insertion hole formed by the contact surfaces of both the left and right pieces, so the burr will not get caught and there is no need for a deburring process. There are advantages.

As a result of the above, the manufacturing process can be simplified, a connected accessory with an expensive aesthetic appearance can be provided at a low price, and a connected accessory with a sense of luxury and interest can be obtained.

[Brief explanation of drawings]

Figures 1 to 7 show the manufacturing process of the present invention. Figure 1 is a plan view of a flat plate as a material, and Figures 2 a and b are plan views of a state in which a bulge is formed on it. 3 is a plan view of the punched state, FIG. 4 is a plan view with grooves formed therein, FIG. 5 is a slope view of the bending process, and FIG. 6 a, 7b is a plan view and a side view of the molded connector, FIG. 7a is a plan view of the connection process, FIG. 7b is a plan view of the completed connection state, and FIG. 8 is a plan view of the completed product. DESCRIPTION OF SYMBOLS 1... Plate, 2, 2a... Swelling part, 3... Hollow groove, 4a
...Left piece, 4b...Right piece, 5...Connection part, 6...Groove, 7...
Insertion hole, A, B...connection piece.

Claims (1)

[Scope of Claims] 1. Left and right pieces formed in a symmetrical bulge shape, which are connected at a narrow part to a connecting part having upper and lower protrusions, are connected so that the bulge side is the outer surface. Fold it back at the center of the section and bring the outer edges of both left and right pieces into contact with each other.
A connection piece is formed by forming an insertion hole in a part of the contact surface, and after inserting the connection part of the next connection piece into the insertion hole of one connection piece, the contact surface of the inserted connection piece A connecting accessory characterized by connecting connecting pieces by brazing. 2. A flat plate is provided with a bulge that becomes both the left and right pieces, and a recess that bulges out continuously from the bulge and serves as an insertion hole. Punch out the connecting part with protrusions on the top and bottom of the piece,
The recessed portion is used as an insertion hole, and the bulging side is used as an outer surface, and the connecting piece is formed by folding back from the center of the connecting portion so that the outer peripheral edges of both the left and right pieces are in contact with each other, and the insertion hole for one connecting piece is formed. 1. A method for manufacturing a connected accessory, which comprises inserting a connecting portion of the next connecting piece into the holder, and then brazing and connecting the contact surfaces of the inserted connecting piece.