JP3151301U - Ball chain for jewelry - Google Patents

Abstract

An object of the present invention is to provide an economical ball chain for clothing that enhances the strength and durability of the ball itself, can perform a beautiful welding process easily and in a short time, has a simple structure, is suitable for mass production, and is economical. A ball for clothing comprising a plurality of balls 1 formed into a hollow sphere shape by plastic deformation of an elongated strip-shaped ball base material, and a plurality of connecting rods 5 connecting adjacent balls 1 to each other. In the chain S, the dotted laser welded portion 2 by a laser welding machine is appropriately applied along the seam line to the seam line part of the ball 1 formed by making the left and right side edges of the base material for the ball butt. A plurality are provided at intervals. [Selection] Figure 5

Description

  The present invention mainly relates to a ball chain for an ornament used as a necklace, a bracelet, and other appropriate accessories for accessories, and in particular, even when the ball portion has a small diameter, it is unexpected. The present invention relates to a ball chain for jewelry that has been devised to increase its strength and durability so that it is not easily broken by an external force or the like.

Conventionally, various types of ball chains for this type of clothing have been provided.
For example, there is a ball chain for jewelry as shown in Patent Document 1, which consists of a plurality of hollow sphere-shaped balls and a connecting core that connects adjacent balls inserted through through holes. Both ends of the core are provided with connecting heads and are formed to be locked in the through holes.
Moreover, the ball itself is formed into a hollow sphere with a seam line by appropriately plastic processing a metal plate material.

JP 2005-192838 (see FIG. 3)

  However, in the conventional ball chain for jewelry as described above, for example, when the ball portion has a small diameter, the ball portion is formed by using a considerably thin metal plate material. The wire part is easily deformed with a slight force (the seam line part of the ball is easy to open), and the connecting head of the connecting core deviates from the through hole of the ball due to unexpected external force, etc. There were some difficulties that made it easy to cut.

  Therefore, the present invention makes it possible to increase the strength and durability of the ball itself so that the joint line of the ball does not easily open even if there is an unexpected external force, etc. The body ball chain S according to claim 1 is devised so as not to be in a broken state, and is formed into a hollow sphere shape by plastic deformation of the elongated belt-like ball base material S1. A ball chain S for jewelry composed of a plurality of balls 1 and a plurality of connecting rods 5 for connecting adjacent balls 1 to each other, and the right and left side edges of the base material S1 for balls are abutted. A means for providing a plurality of spot-like laser welds 2 by a laser welding machine at appropriate intervals along the seam line was adopted at the seam line part of the ball 1 to be formed.

  In addition, the ball chain S for jewelry according to claim 2 includes a plurality of balls 1 formed into a hollow sphere shape by plastic deformation of the elongated base plate-like ball base material S1, and one long connecting rod. A ball chain for clothing comprising a plurality of connecting rods 5 that connect adjacent balls 1 to each other and are formed by separating the continuous connecting rods S2 formed of the material by the separation notch 7. S, a point-shaped laser welded portion 2 by a laser welding machine is provided along the seam line at the seam line part of the ball 1 formed by the left and right side edges of the ball base material S1 being butted. A means for providing three laser welding portions 2 with respect to one ball 1 as well as providing at appropriate intervals was adopted.

Therefore, according to the ball chain S for jewelry according to claim 1, the strength and durability of the ball 1 itself can be enhanced by the laser welded portion 2, and even if there is an unexpected external force, the joint line of the ball 1 A part of the ball chain S is prevented from opening, and the ball chain S is not easily cut off.
In particular, since a plurality of dot-like laser welds 2 by a laser welding machine are provided at appropriate intervals along the seam line at the seam line part of the ball 1, the laser weld part 2 itself is not conspicuous and a clean welding process is easy. And can be done in a short time.
In addition, the ball chain S for jewelry is simple in structure, suitable for mass production, and economical.

In addition, according to the ball chain S for jewelry according to claim 2, the strength and durability of the ball 1 itself can be enhanced by the laser welding portion 2, and even if there is an unexpected external force, the joint line of the ball 1 A part of the ball chain S is prevented from opening, and the ball chain S is not easily cut off.
In particular, at the seam line portion of the ball 1, the point-like laser welded parts 2 by the laser welding machine are provided at appropriate intervals along the seam line, and the laser welded parts 2 are provided at three locations for one ball 1 The laser welding part 2 itself is not conspicuous, and a beautiful welding process can be performed easily and in a short time. Furthermore, sufficient strength and durability can be obtained, and work efficiency is also improved.
In addition, the ball chain S for jewelry is simple in structure, suitable for mass production, and economical.

It is the block diagram which illustrated the method of manufacturing the ball chain for jewelry of the present invention. It is the front view which illustrated the device which manufactures the ball chain for clothing of the present invention. It is the schematic which illustrated the state which manufactures the ball chain for clothing of this invention. It is a partial notch partial top view which illustrates the ball chain for jewelry of this invention. It is a partial front view which illustrates the ball chain for jewelry of the present invention.

Hereinafter, the present invention will be described with reference to the drawings.
The ball chain S for jewelry of the present invention includes a plurality of balls 1 that are finally formed into a hollow sphere shape from a cylindrical shape by plastic deformation of the elongated strip-shaped ball base material S1, and a single ball chain S. It is formed by separating the continuous connecting rod S2 formed from the long connecting rod material by the separating notch portion 7, and is composed of a plurality of connecting rods 5 for connecting adjacent balls 1 to each other. Is.
In addition, the spot-like laser welded portion 2 is jointed to the joint line portion of the ball 1 formed by the right and left side edges of the ball base material S1 being butted by laser irradiation from a laser welding machine. A plurality are provided at appropriate intervals along the line.

The ball 1 is made, for example, by plastic deformation of a ball base S1 made of a noble metal (or a metal material appropriately plated with a noble metal) and having a long strip plate shape.
Specifically, as shown in FIG. 3, first, the ball substrate S1 can be continuously fed to the first processed portion a, and the left and right edges of the first processed portion a are butt-shaped. The base material S1 for balls is gradually formed into a cylindrical shape so as to be.

  Then, laser welding is performed on the seam line portion of the cylindrical ball base material S1 by the laser welding part b, and a plurality of laser welding parts 2 that are dotted are provided at appropriate intervals along the seam line.

  Further, the welded cylindrical ball base material S1 is processed into a plurality of hollow spheres by the second processed portion c, thereby forming a plurality of balls 1. At this time, a pair of insertion holes 3 are formed in each of the plurality of balls 1, and the continuous connecting rod S2 is penetrated through the insertion holes 3 (see FIG. 4).

  On the other hand, the continuous connection rod S2 is composed of, for example, an elongated wire-shaped connection rod material made of precious metal (or a metal material appropriately plated with precious metal), and a plurality of bulges are formed on the connection rod It is formed by providing the portion 6 at a predetermined position. In addition, the bulging portion 6 has a set of adjacent ones arranged at predetermined intervals, and a separation notch between the adjacent bulging portions 6 that becomes a cut that becomes narrower than the connecting rod material. A portion 7 is formed (see FIG. 3). That is, it is formed so that it can be smoothly broken and separated by the separating cut portion 7.

The continuous connecting rod S2 is fed so as to be continuously fed to the first processing part a and to be contained in the ball base material S1 formed in a cylindrical shape.
And in the 2nd process part c, it feeds so that one set of adjacent bulging parts 6 may be distribute | arranged to the approximate center part of the ball | bowl 1. FIG.

  Then, the continuous connecting rod S2 is pulled in the longitudinal direction to be broken at the separation notch portion 7, and a plurality of separated connecting rods 5 are formed. The connecting rod 5 connects adjacent balls 1 to each other.

  By the way, in order to manufacture the ball chain S for jewelry of the present invention, for example, the first processed portion a is formed into a cylindrical shape in which the left and right side edges of the elongated belt-like ball base material S1 are butted. And the point-like laser welded portion 2 provided by the laser welded portion b at the seam line portion of the cylindrical ball base material S1. Are processed at intervals along the seam line, and a laser-welded cylindrical ball base material S1 is processed into a plurality of hollow sphere-shaped balls 1 by the second processing portion c. A manufacturing means including a third step C and a fourth step D in which the continuous connecting rod S2 is pulled in the longitudinal direction and separated into a plurality of connecting rods 5 by a separation notch portion 7 provided in advance is employed.

In the first step A, the elongated strip-shaped ball base material S1 is processed into a cylindrical shape in which the left and right side edges are butted in the first processed portion a, and is continuously formed in the cylinder. The connecting rod S2 can be inserted.
The first processed portion a may be any one that can be smoothly and beautifully plastically processed into a cylindrical shape by gradually narrowing the elongated strip-shaped ball base material S1 in the width direction. And what is necessary is just to be comprised so that the continuous connection rod S2 can be smoothly guided in cylindrical base material S1 for balls.

Further, in the second step B, the dotted laser welded portions 2 provided by the laser welded portion b are arranged at appropriate intervals along the seam line at the seam line portion of the cylindrical ball base material S1. To be able to.
In addition, the laser welding part b should just be comprised so that the laser from a laser welding machine can irradiate a seam line part correctly. In addition, for example, the point-like laser welded portions 2 are arranged at about three locations on one ball 1 so that sufficient strength and durability can be obtained, and work efficiency is also improved. Anything that takes into account.

In the third step C, the laser-welded cylindrical ball base material S1 can be processed into a plurality of hollow sphere-shaped balls 1 by the second processing portion c.
The second processed portion c can, for example, plastically deform the cylindrical ball base material S1 stepwise with a pair of dies or the like, and finally form a plurality of hollow spherical balls 1 continuously. Any structure may be used (see FIG. 3).

  Then, in the fourth step D, the continuous connecting rod S <b> 2 is pulled in the longitudinal direction, and is broken by the separation notching portion 7 provided in advance so that it can be separated into a plurality of connecting rods 5.

  By the way, the specific configuration, shape, dimensions, material of the ball chain S for jewelry, the specific configuration, shape, dimensions, material of the ball base material S1, the specific configuration, shape, dimensions, material of the continuous connecting rod S2, Specific configuration, shape, dimensions, material of ball 1, specific configuration of laser weld 2, shape, dimensions, arrangement position, number, specific configuration of insertion hole 3, shape, dimensions, specific of connecting rod 5 Configuration, shape, dimensions, material, specific configuration of the bulging portion 6, shape, dimensions, material, specific configuration, shape, dimensions of the separation notch 7, specific configuration of the first step A, second step Specific configuration of B, specific configuration of the third step C, specific configuration of the fourth step D, specific configuration of the first processed part a, arrangement position, specific configuration of the laser welded part b, arrangement position The specific configuration, arrangement position, etc. of the second processing portion c are not limited to those in the illustrated example, and can be freely set as appropriate. It is those that can be changed.

  Therefore, the ball chain S of the present invention is improved in strength and durability of the ball 1 itself, and the joint line portion of the ball 1 is prevented from being opened by an unexpected external force, In addition, a beautiful welding process can be performed easily and in a short time, and the structure is simple, suitable for mass production, and economical.

S Ball chain for decoration S1 Base material for ball S2 Continuous connecting rod 1 Ball 2 Laser welding portion 3 Insertion hole 5 Connecting rod 6 Swelling portion 7 Separation cut portion A First step B Second step C Third step D 4th process a 1st processing part b Laser welding part c 2nd processing part

Claims (2)

  A ball chain for clothing comprising a plurality of balls formed into a hollow sphere shape by plastic deformation of an elongated strip plate base material, and a plurality of connecting rods connecting adjacent balls to each other. A plurality of dotted laser welded portions by a laser welding machine are provided at appropriate intervals along the seam line at the seam line part of the ball formed by the right and left side edges of the base material for butt contact. A ball chain for jewelry.   A plurality of balls formed into a hollow sphere shape by plastic deformation of the elongated belt-like base material for the ball and a continuous connecting rod formed from one long connecting rod material are separated by a notch for separation. And a ball chain for a body composed of a plurality of connecting rods for connecting adjacent balls to each other, wherein the right and left side edges of the ball base material are formed in a butted shape In the joint line portion of the ball to be formed, spot-like laser weld portions by a laser welding machine are provided at appropriate intervals along the joint line, and three laser weld portions are provided for one ball. Ball chain for jewelry.

Images