METHOD FOR PRODUCING GOURMETTE JEWELLERY ARTICLES

Abstract

A description is given of a method for the production of gourmette jewellery articles comprising the steps consisting of: forming by cutting a series of links (10) starting from a metal plate; creating a reinforcing edge around said links; pressing in a mould said reinforced links to confer thereto an undulated shape; making a cut (41) which develops from the outer perimeter to the inner perimeter on some of said reinforced links (30), obtaining in this way a series of reinforced links provided with cut (40); attaching in sequence two reinforced links provided with cut (40) to an intact reinforced link (30), or two intact links to a link provided with cut, obtaining a chain wherein a reinforced link (30) alternates with a reinforced link provided with cut (40); and closing the cuts (41) previously formed in the reinforced links provided with cut (40).

Claims

1. A method for making gourmette jewellery articles comprising the steps of: obtaining by cutting a series of links from a metal plate; creating a reinforcing edge around said links; pressing said reinforced links into a mould to give them an undulated shape; making a cut that develops from the outer perimeter to the inner perimeter, or vice versa, on some of said reinforced links, obtaining in this way a set of reinforced links provided with cut; attaching in sequence two reinforced links provided with cut to an intact reinforced link, or two intact links to a link provided with cut, obtaining a chain in which an intact reinforced link alternates with a reinforced link provided with cut; closing the cuts previously made in the reinforced links provided with cut.

2. according to claim 1, wherein the reinforcing edge is obtained by applying and joining a metal profile around the outer perimeter of said links.

3. The method according to claim 2, wherein said metal profile is obtained starting from an open barrel made of a deformable material having an opening that runs longitudinally.

4. The method according to claim 3, wherein said open barrel is wound around a shaped section according to the shape of the outer perimeter of the cut link so as to assume the shape thereof and making a cut so as to obtain an open shaped profile.

5. The method according to claim 2, wherein the metal profile is joined to the outer perimeter of the links by welding.

6. The method according to claim 1, wherein the metal profile is joined to the outer perimeter of the links by localized laser welding in two or more points and the element obtained subsequently is passed through a tunnel furnace for complete welding.

7. The method according to claim 1, wherein said links have an elongated, ovalized or elliptical shape.

8. A Gourmette jewellery article obtained by the method according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Further features of the invention will be made clearer by the following detailed description, referring to a purely illustrative, and therefore non-limiting, embodiment thereof illustrated in the accompanying drawings, wherein:

[0022] FIGS. 1a and 1b are, respectively, an axonometric view and a plan view of a cut (semi-finished) link used to make an item of jewellery by the method according to the present invention;

[0023] FIGS. 2a and 2b are, respectively, an axonometric view and a plan view of a profile with which to wrap the cut links;

[0024] FIG. 2c is a sectional view taken along line A-A of FIG. 2b;

[0025] FIGS. 3a and 3b are views showing a metal profile in the phase of wrapping around a cut link;

[0026] FIG. 3c is a view showing a link reinforced with the metal profile;

[0027] FIGS. 4a, 4b and 4c are views showing a reinforced and moulded link;

[0028] FIG. 5 is a view showing a reinforced and moulded link on which a cut is made;

[0029] FIG. 6 is a view in which two links with a cut are attached to a link without cut; and

[0030] FIGS. 7a and 7b are views showing a section of a chain obtained by the method according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0031] A detailed description will now be given, with reference to the accompanying drawings, of a method for making gourmette jewellery articles according to the present invention, which begins with the production of the single links from a thin metal plate, for example with a thickness of approximately 0.3 mm, which is appropriately cut to obtain semi-finished links 10. The plate may be of any metal, in particular a precious metal, such as gold and the like.

[0032] FIGS. 1a and 1b are illustrative views of a cut link 10 having an outer perimeter and a hole that delimits an inner perimeter. In the various drawings, a preferred embodiment of the links 10 is shown with elongated, ovoid or vaguely elliptical shape.

[0033] After having made the links 10, a metal profile 20, shown axonometrically in FIG. 2a and in plan view in FIG. 2b, is wrapped around their outer perimeter. The metal profile is generally obtained starting from an open barrel of deformable material, i.e. having an opening that runs longitudinally, wrapped around a section shaped according to the shape of the perimeter of the cut link 10 so as to assume the shape thereof and making a cut 21, so as to obtain an open shaped profile, as can be seen in FIG. 2c, which shows a section view of the metal profile 20 taken along line A-A of FIG. 2b.

[0034] The metal profile 20 can therefore be applied by simply spreading apart the ends thereof and making it fit on the outer perimeter of the link 10, as shown in FIGS. 3a and 3b. The application of the profile 20 to the link 10, in addition to giving a pleasing and distinctive aesthetic effect, gives greater rigidity to the whole and prevents the edge of the cut element from causing injury to the user.

[0035] To ensure that the elements are joined, it is possible to weld some points of profile 20 to the outer perimeter of link 10 beforehand. For example, one end of the profile 20 is fixed, by laser welding, in a point 22 corresponding to one of the vertices placed on the larger axis of link 10 and in a point 23 corresponding to the opposite vertex. The laser welding is completed by joining again the ends of profile 20 in point 22.

[0036] Other welding methods are naturally possible.

[0037] Subsequently, the composite piece formed by the joining of profile 20 and link 10 is made to pass through a tunnel furnace to weld the two elements completely one to the other. At the end of this phase, a reinforced link 30 such as that shown in FIG. 3c is obtained.

[0038] According to a preferred aspect of the invention, the reinforced links 30 thus produced can be bent by means of suitable dies to give a characteristic undulated shape, shown in FIGS. 4a, 4b and 4c, and to allow regular jointing between the links once they are concatenated one to the other.

[0039] The step of assembly of the reinforced links 30 provides for making a cut 41 (FIG. 5) on some thereof extending from the outer to the inner perimeter or vice versa. With reference to the embodiment illustrated in the various drawings of links 10 of elongated shape, the cut is preferably made at one of the vertices placed along the larger axis, in order to obtain a reinforced link with cut 40.

[0040] The links provided with cut 40 can thus be attached to intact reinforced links 30 in order to obtain a chain. Advantageously, as shown in the chain section formed by three links in FIG. 6, two links provided with cut 40 are attached to an intact reinforced link 30 or two intact links to a link provided with cut, so as to create a chain in which an intact reinforced link 30 and a reinforced link with cut 40 are repeated alternately.

[0041] Once the sequence of links has been arranged, the cuts 41 made in the links provided with cut 40 are suitably closed by welding so as to obtain a chain 50 of reinforced links (FIGS. 7a and 7b).

[0042] Naturally, the present invention is not limited to the particular embodiment described previously and illustrated in the accompanying drawings, but numerous detailed changes may be made thereto, within the reach of the person skilled in the art, without thereby departing from the scope of the invention itself, as defined in the appended claims.