JPS61242742A - Manufacture of chain band - Google Patents

Abstract

PURPOSE:To manufacture easily a massive chain band by twisting a chain-like band formed by fitting adjacently two rings to one ring to the extreme to form a two-row ring developed band and embedding and fixing ornamental wires to the spiral grooves twisted in free directions. CONSTITUTION:The chain-like band in the state in which the two adjacent rings 2a, 2b and 2d, 2e are fitted on the right and left to one ring 2c is twisted to the extreme to form the intermediate band developed with the rings to the two upper and lower rows. Such band 3 is twisted in free directions and is made spiral. The ornamental wires 4a, 4b, 4c are embedded and fixed to the spiral grooves 6 thereof to constitute a chain band 5. The bold, massive and luxurious chain band 5 is easily obtd.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing chain bands used for decorative items such as necklaces and bracelets, and more specifically, a method for easily manufacturing chain bands of various shapes. Regarding.

[Conventional technology]

Conventionally, a chain band is generally constructed by continuously connecting a closed ring with other rings placed on both sides of the ring.

Therefore, when making chain bands of different shapes, the shapes of the individual rings are determined, and then each ring is hung open to each other, and then the open portions of the rings are closed.

[Problem that the invention seeks to solve]

According to the above-mentioned conventional chain band manufacturing method, it is necessary to create a ring shape corresponding to each different shape and to connect the rings in a chain, which makes manufacturing extremely complicated and disadvantageous in terms of cost. There is a problem.

The present invention was created in view of the above points, and an object of the present invention is to provide a method for manufacturing a chain band that allows chain bands of different shapes to be easily manufactured by processing a ready-made item. It is an object.

[Means for solving problems]

In order to achieve the above object, the present invention provides a ready-made band that is formed by fitting two adjacent rings to one sung and sequentially connecting them in a chain shape, twisting the band to the maximum, and then forming a ring. are rolled out in two rows, upper and lower, to form an intermediate band that is fixed in that state, and the intermediate band is further twisted in the free direction to form a spiral groove, and a decorative wire is buried in the groove and wound. It is characterized by being fixed so as to maintain the wrapped state.

〔Example〕

Hereinafter, embodiments of the method of the present invention will be described based on the drawings.

In Fig. 1 (al, (bl), reference numeral 1 is a ready-made band, which is made up of a large number of metal rings 2a, 2b, . . . connected together. Half of each ring 2a, 2b, . . . They overlap and are connected in a chain.

Each ring is fitted into two adjacent rings. That is, for example, ring 2C has ring 2a on one side,
2b and on the other side ring 2d.

2C, and are connected sequentially. ◎Each hinge is bent like a figure 8 in the side view shown in Fig. 1(b), and in the upper part U in Fig. 1(a), Each ring 2a, 2b, 2C12d, 2e overlaps one after another from left to right, and conversely, each ring 2e, 2 overlaps from right to left at the lower edge.
d, 2c, 2b, and 2a overlap one after another.

As a result, in the natural state, each ring 2a, 2b, ... overlaps to form a band shape arranged in a line, and in the ring overlapping direction indicated by the arrow in (b), the rings 2a, 2b, ... are regulated by overlapping. Things that can't be twisted are busy.

Therefore, when the ready-made band 1 is twisted in the opposite direction to the ring overlapping direction, the superposition of each ring 2a, 2b, etc. is released, and the orderly arrangement as shown in Fig. 1 is disrupted, resulting in the formation as shown in Fig. 2. become a state. Then, by twisting it further to the limit, the single-row arrangement as shown in Fig. 1 is completely eliminated, and as shown in Fig. 3, one fk (1) I)
changes direction from the longitudinal direction of the band to the lateral direction and unfolds upward, and the other rings 2b and 2d between these rings also change direction and unfold downward. Thus, one ring 2
The other four rings 2a, 2b, 'ld, and 2e are arranged in a zigzag pattern in two rows, upper and lower, while maintaining a chain connection. In this case, the overlapping condition is completely opposite to that of the ready-made band 1 shown in FIG. Each ring 2b, 2 in the direction of
They overlap one after another in the order of d.

After that, in the expanded state of the two rows, at least two upper and lower rings 2a and 2b, 2C and 2d are connected to each other.
are fixed together by brazing on the front side in the twisting direction. Each ring is then held in an expanded state to produce two rows of intermediate bands 3.

Further, in this band B, the upper and lower sets of rings 2a and 2b are fixed to each other, while the other sets of rings 2C and 2d are in a freely connected state. Furthermore, depending on how the upper and lower edges overlap, in their natural state they form a band shape lined up in two rows, but they can be twisted in the direction opposite to the overlapping direction of the arrows in FIG.

Therefore, as shown in FIG. 4, the two rows of bands 3 are further twisted in the free direction to form a spiral groove 6, and in this groove 6, as shown in FIG. Decorative wire rods 4a, 4b, and 4C are buried and wound. Then, the band 3 is held in a twisted state by winding these wire rods 4a, 4b, 4C, and the winding state is maintained by fixing both ends of the wire rods 4a, 4b, 4c to, for example, metal fittings. In this way, a new chain band 5 that is thick, has a spiral shape, and can be bent relatively freely is manufactured.
Become.

Note that the decorative wire rods 4a, 4b, and 4C are preferably relatively thick and of different colors, and these wire rods may be used as the main decoration.

〔Effect of the invention〕

As described above, according to the method for manufacturing a chain band of the present invention, the ready-made band in the - row is twisted and deformed, so manufacturing is very easy.

In addition, the formed chain band is thick (and the addition of other decorative wire materials makes it heavy and luxurious.

[Brief explanation of drawings]

Figure 1 (al is a front view of the ready-made band, (b) is the same side view, Figure 2 is a diagram showing the state in which the ready-made band has started to be twisted, Figure 3 is a diagram showing the intermediate band, Figure 4 is the intermediate band) Figure 5 is a diagram showing the twisted state of the band, and Figure 5 is a diagram showing a molded chain band. 1... Ready-made band, 2a to 2e... Ring, 6...・Intermediate band, 4a, 4b, 4c... Decorative wire material, 5...
・Chain band, 6... groove. Figure 4 Figure 5 Pe 3・・・・・・・・・In the middle, 14a, 4b
, 4c・4 ri sashi 1 year old 5・・・・・・・・・・Gi bunt °′6・・・・
・・・・・・・・・Crush d, O

Claims (1)

[Claims] In a ready-made band formed by fitting two adjacent rings to one ring and sequentially connecting them in a chain, the band is twisted to the extreme and the rings are expanded into two rows, one above the other. A fixed intermediate band is formed, the intermediate band is further twisted in a free direction to form a spiral groove, a decorative wire is buried in the groove and wound, and fixed so as to maintain the wound state. A method for manufacturing a chain band characterized by: