FR2530932A1 - METHOD FOR CRIMPING CLASSY PRECIOUS STONES, FOR EXAMPLE ON AN ALLIANCE - Google Patents

Abstract

THE PROCESS CONSISTS OF IMMOBILIZING THE STONES 1 IN THEIR BASE 2 BY MEANS OF A CONTINUOUS METAL WIRE 3 WHICH LIES A PORTION OF THE PERIPHERY OF SAID STONES 1 ALTERNATIVELY ARRANGED ON ONE SIDE AND THE OTHER OF THE WIRE 3, CRIMPING MEANS ADDITIONAL 5 PROVIDED FOR ON ONE OR MORE OPPOSED PORTIONS OF THIS PERIPHERY. JEWELERY MANUFACTURING.

Description

The present invention relates to a method of crimping stones

  precious bundles, for example on an alliance, a bracelet, an earring, etc. In the conventional technique, the stones are crimped by means of claws brazed or welded to the base, or shavings raised from the base, crimps folded over the entire periphery of the stone, and so on. However, these methods are not specific to groupings of stones There is certainly a method applicable to grouped stones which consists of using a "link" welded metal at one of its ends on the base and folded at the point of tangency between two adjoining stones, but this process is limited as to

the effect it provides.

  The present invention aims to provide a new crimping method which, unlike the previous one,

  allows various embodiments.

  This object is achieved in that the method according to the invention consists in immobilizing the stones in their base by means of a continuous wire which runs along a portion of the periphery of said stones arranged alternately on one side and the other wire, complementary crimping means being provided on one or

  several opposite portions of this periphery.

  Depending on the shape of the stones and their relative arrangement, the wire can thus describe a sinusoid more or less stretched or tightened, a succession of crenellations, a zig-zag line, etc. In a first embodiment of the invention, the complementary crimping means are constituted

  by one or more claws of any shape.

  In a second embodiment, they are constituted

  killed by portions of wire belonging to a second and third continuous metal son which run along a portion of the periphery of stones belonging to a second and a third group, the stones of these second and third groups being arranged alternately with a side and the other, respectively, of the second and -third wires, and the son being secured of the bases only between the zones

crimping.

  In this embodiment it is not recourse to the use of claws It follows that the jewel obtained, although it is lined with stones, has no part of crimping means likely to scratch or pull the sons. The possibilities offered by the invention will emerge

  better from the following description made with reference to

  attached drawings, in which FIG. 1 is a perspective view of an alliance portion whose stones are crimped according to the invention, FIG. 2 is a schematic representation of the alliance portion of FIG. 3 is a schematic representation of another group of stones belonging, for example, to a collar, FIG. 4 is a schematic representation of yet another group of stones belonging, for example, to a ring, the FIG. 5 shows a section taken along line 5-5 of FIG. 4 before crimping stones, and FIGS. 6a to 6h show the application of the method.

  according to the invention to various forms of stones and

stones.

  Referring to FIGS. 1 and 2, there is shown a group of stones 1a, 1b, 1c and 1d crimped into a base 2a, 2b, 2c and 2d, for example, made of gold Crimping is obtained by means of a continuous round metal wire 3, for example also made of gold, soldered on the half-periphery of the bases 2a and 2c lying foremost in FIG. 1 and on the half-periphery of the bases 2b and 2d to the rear in Figure 1, so that the wire 3 describes a sinusoid in the concavities 4 which are housed the stones 1 At the opposite of the wire 3, the stones 1 are crimped by a claw 5 It is understood that one could provide two claws 5 or

  more by -stone, as a means of complementary crimping

  silent. Instead of being soldered, wire 3 could be rendered

  secured to the bases 2 in any other suitable manner.

  FIG. 3 shows another possibility of applying the method. This time, pairs of stones are juxtaposed, and each pair is crimped using a sinusoidal wire 3a, 3b and 3c. A pair of claws 5 is provided,

on the opposite side, on each stone.

  Figure 4 shows a crimp-using only sinusoidal son 3 d, 3 e, 3 f and 3 g In this case, each stone is crimped between the concavity 4 of a wire and the

convexity 6 of the next thread.

  As can be seen from FIG. 5, before crimping, the wires 3 d, 3 e, 3 f and 3 g are secured to the base 2 only between the crimping zones, which makes it possible to insert the stones between these threads The crimping is obtained by exerting a pressure on the "free" zone of the threads, in

direction of the stones.

  Figures 6a to 6h show the application of the method according to the invention to different forms of stones: shuttles (Figures 6a and 6g), oval (Figures 6b and 6h), square (Figures 6c and 6) f), chopsticks (Figures 6 d and 6 e), arranged in height (Figures 6 a, 6 b and 6 d), diagonally

  (Figure 6 c), in width (Figures 6 e, 6 g and 6 h).

  According to these shapes and the arrangement of the stones, the wire 3 describes a sinusoid (FIGS. 6a, 6b, 6g and 6h), a

  zig-zag (Figure 6c) and slots (Figures 6d, 6e and 6f).

  Different shapes of claws 5 are used: hat (FIGS. 6 a and 6 c), half-round (FIG. 6 b), rounded flat (FIG. 6 g and 6 h), straight round wire (FIGS. 6 d, 6 e

and 6 f).

  It is understood that one could also use one or more round claws, for example of

one to three per stone -

  It goes without saying that other variants of use of the method according to the invention are possible and that they fall within the scope of the latter. In particular, the invention is not limited to jewelery, it can equally well be well applied to jewelry making

fancy.

253093.

Claims (9)

  1 Method of setting precious stones   grouped, characterized in that it consists of   in their base (2) by means of a continuous wire (3) which runs along a portion of the periphery of said stones (1) arranged alternately on one side and   the other of the wire (3), complementary crimping means   res (5) being provided on one or more opposite portions from this periphery.   Process according to Claim 1, characterized in   what the wire (3) describes a sinusoid.   Process according to Claim 1, characterized in   that the wire (3) forms a succession of slots.   Process according to Claim 1, characterized in   the wire (3) forms a zig-zag line.   Process according to any one of the claims   1 to 4, characterized in that the complementary crimping means (5) are constituted by claws of any shape.   Process according to any one of the claims   1 to 4, characterized in that the complementary crimping means are constituted by portions of wire belonging to a second and a third metal wire   (3 d, 3 f) continuous along a portion of the periphery-   stones belonging to a second and a third group, the stones of these second and third groups being arranged alternately on one side and the other, respectively, of the second and third son (3 d, 3 f), and the wires (3 d, 3 e, 3 f) not being secured to the sockets (2) that between crimping areas.   7 Jewel or part of jewel filled with stones set by the method according to any one of Claims 1 to 6.