EP1048241A1 - Method for setting soft precious stones in a piece of hard metal - Google Patents

Method for setting soft precious stones in a piece of hard metal Download PDF

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Publication number
EP1048241A1
EP1048241A1 EP00810313A EP00810313A EP1048241A1 EP 1048241 A1 EP1048241 A1 EP 1048241A1 EP 00810313 A EP00810313 A EP 00810313A EP 00810313 A EP00810313 A EP 00810313A EP 1048241 A1 EP1048241 A1 EP 1048241A1
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Prior art keywords
grains
stones
holes
stone
metal
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EP00810313A
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German (de)
French (fr)
Inventor
Gérald Clerc
Juan Gérald Montes
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Clerc SA
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Clerc SA
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    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44CPERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00Gems or the like
    • A44C17/04Setting gems in jewellery; Setting-tools

Definitions

  • Diamonds have already been set on steel. However, you should know that the stone during its setting whatever the technique used undergoes constraints whatsoever during the establishment in holes or when tightening with claws or catkins or grains that can cause destruction partial or total of the stone.
  • the diamond being the hardest stone, since it has a degree of hardness of 10 on the MOHS scale, it allows to realize crimping on steel without many problems.
  • we don't just use diamonds whose prices are among the highest but other stones of colors such as ruby, sapphire, coridon, etc. whose hardness level is less than 10 MOHS. These stones hardly support the constraints of a usual crimping in a hard metal such as steel.
  • the object of the present invention is to remedy this problem and to propose a crimping process to grains of so-called soft stones on a hard metal such than steel.
  • the method according to the invention is characterized in that the holes drilled in step b have a maximum diameter corresponding to the diameter of the laminated stones allowing the introduction of stones into the holes corresponding without deformation of the metal, and that one mill the lower parts of the beans to preform the bearing of the stone, which will marry the laminate when applying the grains on the crown of each stone.
  • the stone is put into the previously dug hole practically without any effort, since the diameter of the hole corresponds to the maximum diameter of the stone, so the stone is not subjected to an effort to push it inside the hole and deform the metal.
  • the diameter of the hole corresponds to the maximum diameter of the stone ensures close contact ensuring the holding of the gem, but the latter does not undergo the stresses that it would have suffered if the hole was smaller than its diameter maximum.
  • the fact that the lower part of the grains has been milled to preform the bearing surface of the stone allows when the grains are pushed against the stone to obtain its crimping without the latter being subjected to stresses as in the previous state to form the bearing of the stone in the grains. It is obvious that when the grains are pushed against the stone, the latter is subjected to an effort, but it is an effort which is not intended to deform the grains and ensure the bearing of the stones by the penetration of the laminate in the grains, but only to clamp the stone between the grains and to bring back in what kind the millings on the angle formed by the crown, the laminate and the cylinder head of the stone.
  • the grain formation is achieved by milling the piece of metal in two perpendicular directions. Indeed, this milling is carried out by removing metal between holes working in two directions different, which creates the path to allow the light reaching the gem's breech, which allows maximum light reflection of radiance.
  • Figure 1 is a sectional view of a piece of metal with the holes intended to receive the stones precious.
  • Figure 2 is a partial view of Figure 1 in plan after milling to lift the grains.
  • Figure 3 is a view similar to the previous one in which two precious stones were placed in their accommodation.
  • Figures 4 and 5 show a partial view of the grain setting of a precious stone according to art prior.
  • FIGS 6 and 7 show grain setting according to the present invention.
  • FIG 1 there is shown a piece of metal 1 in cup provided with holes 2 dug by any known means.
  • a strafing that is to say we mark, depending on the size of the stones and the desired effect obtain, the center of each hole to be made and by the following by means of tools such as strawberries or similar we proceed to the formation of holes 2 in one or more operations.
  • the diameter of the holes drilled is slightly less than the maximum stone diameter and more precisely of the fiilletis.
  • a cutting tool and in this case it will be a strawberry, we dig the space between the two holes (hatched part of the drawing) for two purposes, the first being to leave pass the light towards the lower part of the gem, which allows to get the reflection of the light ensuring the shiny appearance of the stones, and for lift the grains 4 which will be used later to keep each gem inside the hole.
  • there are four grains per stone but this number may vary depending on the size of the stones and the aesthetic effect that desire to obtain. What is certain is that it is necessary that the arrangement of these grains is completely made symmetrical with respect to the gem and also by compared to the room as a whole.
  • FIG. 3 we have represented the object of the Figure 2, except that inside the holes 2 we have arranged the gems 5 represented in a well heard quite schematic.
  • the diameter of the hole 2 corresponds exactly the maximum gem diameter (from leaf) and just push the gem inside this hole, which of course does not holding the gem as effectively as when it there is deformation of the metal.
  • each grain 4 must be pushed by a tool 6 called tab against gem 5 and if we refer now in Figure 5, we see that the grain 4 comes marry part of the crown 52 of the gem and more precisely the angle formed by the crown 52, the laminate 51 and cylinder head 53.
  • the base of the grain 4 is deformed, which makes it possible to obtain a good seated gem 5 in its hole and an outfit sufficient.
  • This deformation of the metal cannot be Obviously obtained if the stone 52 has a some resistance to obtain the deformation metal.
  • the present invention proposes to form by milling at the foot of grain 4 a notch 41, so when the tab 6 pushes the grain 4 against the stone 5, the space necessary to house the part of the gem, namely the angle formed by the crown 52, the laminate 51 and the cylinder head 53, is preformed, which does not subject the gem to constraints necessary for the formation of a bleeding in metal, as in the prior art, which could cause its destruction. It's obvious that the space shown in figure 6 between the stone and the notch 41 is exaggerated for the clarity of the drawing.

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Abstract

Setting method involves : (a) marking of steel plate (1) where stones are to be inserted, (b) drilling of small holes (2) in plate, (c) forming grains (4) by milling steel plate, (d) finishing form of grains, (e) setting stones in holes and placing grai against ring of stone, and (f) finishing and polishing of finished jewel/watch.

Description

La présente invention concerne un procédé de sertissage à grains des pierres ayant une dureté inférieure à 10 MOHS dans une pièce de métal tel que l'acier comprenant les étapes suivantes :

  • a. répartition des pierres sur la pièce en métal et marquage du point représentant le centre des trous à percer,
  • b. perçage en une ou plusieurs opérations pour obtenir des trous de diamètre et profondeur souhaités,
  • c. formation des grains par fraisage de la pièce de métal,
  • d. finition de la forme des grains,
  • e. mise en place des pierres dans les trous et application des grains contre la couronne des pierres par l'intermédiaire des efforts appliqués sur chacun des grains,
  • f. finition, polissage de la pièce ainsi formée.
  • The present invention relates to a method of grain setting of stones having a hardness of less than 10 MOHS in a piece of metal such as steel, comprising the following steps:
  • at. distribution of the stones on the metal part and marking of the point representing the center of the holes to be drilled,
  • b. drilling in one or more operations to obtain holes of desired diameter and depth,
  • vs. grain formation by milling the metal part,
  • d. grain shape finish,
  • e. placing stones in the holes and applying the grains against the crown of the stones by means of the forces applied to each of the grains,
  • f. finishing, polishing of the part thus formed.
  • Aussi bien dans la bijouterie que dans l'horlogerie, différentes techniques de sertissage sont utilisées pour sertir des pierres précieuses sur différents métaux. Traditionnellement, les pierres précieuses sont serties sur l'or, ou le platine, ou l'argent. Récemment, une tendance s'est dessinée de sertir des pierres précieuses sur des métaux moins nobles que ceux précités aussi bien en bijouterie qu'en horlogerie. In both jewelry and watchmaking, different crimping techniques are used to set gemstones on different metals. Traditionally, gemstones are set with gold, or platinum, or silver. Recently, a trend has emerged to set precious stones on less noble metals than those mentioned above in both jewelry and watchmaking.

    Différentes raisons ont conduit à cette tendance, dont une, bien sûr, est de proposer des articles permettant d'être acquis à un prix plus bas et également de proposer des articles présentant une meilleure résistance contre l'usure.Various reasons have led to this trend, including one, of course, is to offer articles allowing to be acquired at a lower price and also to offer articles with better resistance against wear.

    On a déjà serti des diamants sur de l'acier. Néanmoins, il faut savoir que la pierre lors de son sertissage quelle que soit la technique utilisée subit des contraintes que ce soit lors de l'implantation dans les trous ou lors du serrage par les griffes ou les chatons ou les grains qui peuvent provoquer la destruction partielle ou totale de la pierre. Le diamant étant la pierre la plus dure, puisqu'il présente un degré de dureté de 10 à l'échelle de MOHS, il permet de réaliser un sertissage sur acier sans beaucoup de problèmes. Aussi bien dans la bijouterie que la joaillerie, on n'utilise pas uniquement des diamants dont les prix sont parmi les plus élevés, mais d'autres pierres de couleurs telles que le rubis, le saphir, le coridon, etc. dont le degré de dureté est inférieur à 10 MOHS. Ces pierres supportent difficilement les contraintes d'un sertissage habituel dans un métal dur tel que l'acier.Diamonds have already been set on steel. However, you should know that the stone during its setting whatever the technique used undergoes constraints whatsoever during the establishment in holes or when tightening with claws or catkins or grains that can cause destruction partial or total of the stone. The diamond being the hardest stone, since it has a degree of hardness of 10 on the MOHS scale, it allows to realize crimping on steel without many problems. In both jewelry and jewelry, we don't just use diamonds whose prices are among the highest but other stones of colors such as ruby, sapphire, coridon, etc. whose hardness level is less than 10 MOHS. These stones hardly support the constraints of a usual crimping in a hard metal such as steel.

    La présente invention a pour but de remédier à ce problème et de proposer un procédé de sertissage à grains des pierres dites molles sur un métal dur tel que l'acier. The object of the present invention is to remedy this problem and to propose a crimping process to grains of so-called soft stones on a hard metal such than steel.

    Le procédé selon l'invention est caractérisé en ce que les trous percés à l'étape b ont un diamètre maximum correspondant au diamètre du feuilletis des pierres permettant l'introduction des pierres dans les trous correspondants sans déformation du métal, et que l'on fraise les parties inférieures des grains pour préformer la portée de la pierre, qui viendra épouser le feuilletis lors de l'application des grains sur la couronne de chaque pierre.The method according to the invention is characterized in that the holes drilled in step b have a maximum diameter corresponding to the diameter of the laminated stones allowing the introduction of stones into the holes corresponding without deformation of the metal, and that one mill the lower parts of the beans to preform the bearing of the stone, which will marry the laminate when applying the grains on the crown of each stone.

    Les avantages du procédé selon l'invention sont évidentes à la lecture des caractéristiques qui précèdent, à savoir :
    la pierre est mise dans le trou creusé préalablement pratiquement sans aucun effort, puisque le diamètre du trou correspond au diamètre maximum de la pierre, ainsi la pierre n'est pas soumise à un effort pour la pousser à l'intérieur du trou et déformer le métal. Bien entendu, le fait que le diamètre du trou correspond au diamètre maximum de la pierre assure un contact étroit assurant une tenue de la gemme, mais cette dernière ne subit pas les contraintes qu'elle aurait subi si le trou était plus petit que son diamètre maximum. En plus, le fait que la partie inférieure des grains a été fraisée pour préformer la portée de la pierre permet lorsqu'on pousse les grains contre la pierre d'obtenir son sertissage sans que celle-ci soit soumise à des contraintes comme dans l'état antérieur pour former la portée de la pierre dans les grains. Il est évident que lorsqu'on pousse les grains contre la pierre, celle-ci est soumise à un effort, mais il s'agit d'un effort qui n'a pas pour but de déformer les grains et assurer la portée des pierres par la pénétration du feuilletis dans les grains, mais uniquement de serrer la pierre entre les grains et de ramener en quelle sorte les fraisures sur l'angle formé par la couronne, le feuilletis et la culasse de la pierre.
    The advantages of the method according to the invention are obvious on reading the foregoing characteristics, namely:
    the stone is put into the previously dug hole practically without any effort, since the diameter of the hole corresponds to the maximum diameter of the stone, so the stone is not subjected to an effort to push it inside the hole and deform the metal. Of course, the fact that the diameter of the hole corresponds to the maximum diameter of the stone ensures close contact ensuring the holding of the gem, but the latter does not undergo the stresses that it would have suffered if the hole was smaller than its diameter maximum. In addition, the fact that the lower part of the grains has been milled to preform the bearing surface of the stone allows when the grains are pushed against the stone to obtain its crimping without the latter being subjected to stresses as in the previous state to form the bearing of the stone in the grains. It is obvious that when the grains are pushed against the stone, the latter is subjected to an effort, but it is an effort which is not intended to deform the grains and ensure the bearing of the stones by the penetration of the laminate in the grains, but only to clamp the stone between the grains and to bring back in what kind the millings on the angle formed by the crown, the laminate and the cylinder head of the stone.

    Ainsi, en travaillant avec attention et précision, on peut sertir sur de l'acier ou tout autre métal d'une dureté similaire, n'importe quelle pierre dite molle de couleur puisque la pierre n'est pas soumise à des efforts ayant pour but de déformer le métal et assurer un sertissage intime.So, by working with attention and precision, we can be crimped onto steel or any other metal similar hardness, any so-called soft stone color since the stone is not subject to efforts to deform the metal and ensure an intimate setting.

    Selon une variante préférée de l'invention, la formation des grains est réalisée par fraisage de la pièce de métal dans deux directions perpendiculaires. En effet, ce fraisage est réalisé en enlevant du métal entre les trous en travaillant dans deux directions différentes, ce qui crée le chemin pour permettre à la lumière d'atteindre la culasse de la gemme, ce qui permet d'obtenir par réflexion de la lumière un maximum d'éclat.According to a preferred variant of the invention, the grain formation is achieved by milling the piece of metal in two perpendicular directions. Indeed, this milling is carried out by removing metal between holes working in two directions different, which creates the path to allow the light reaching the gem's breech, which allows maximum light reflection of radiance.

    Selon une autre variante d'exécution, lors de la formation des grains, on les relève très haut, on les ébavure et ensuite on les recoupe pour baisser leur hauteur. Cette manière de faire permet en effet d'ébavurer et de former dans un premier temps les grains avec plus de précision. According to another alternative embodiment, during the grain formation, we raise them very high, we deburring and then we cut them to lower their height. This way of doing indeed allows deburring and first forming grains more precisely.

    L'invention sera décrite plus en détail à l'aide du dessin annexé.The invention will be described in more detail using the attached drawing.

    La figure 1 est une vue en coupe d'une pièce de métal avec les trous destinés à recevoir les pierres précieuses.Figure 1 is a sectional view of a piece of metal with the holes intended to receive the stones precious.

    La figure 2 est une vue partielle de la figure 1 en plan après le fraisage pour lever les grains.Figure 2 is a partial view of Figure 1 in plan after milling to lift the grains.

    La figure 3 est une vue similaire à la précédente dans laquelle deux pierres précieuses ont été disposées dans leur logement.Figure 3 is a view similar to the previous one in which two precious stones were placed in their accommodation.

    Les figures 4 et 5 montrent une vue partielle du sertissage à grains d'une pierre précieuse selon l'art antérieur.Figures 4 and 5 show a partial view of the grain setting of a precious stone according to art prior.

    Les figures 6 et 7 montrent le sertissage à grains selon la présente invention.Figures 6 and 7 show grain setting according to the present invention.

    A la figure 1, on a représenté une pièce de métal 1 en coupe munie de trous 2 creusés par tous moyens connus. Préalablement, on effectue ce qu'on appelle un mitraillage, c'est-à-dire on marque, en fonction de la grandeur des pierres et de l'effet que l'on désire obtenir, le centre de chaque trou à effectuer et par la suite au moyen d'outils tels que des fraises ou similaires on procède à la formation de trous 2 en une ou plusieurs opérations. In Figure 1, there is shown a piece of metal 1 in cup provided with holes 2 dug by any known means. Beforehand, we perform what is called a strafing, that is to say we mark, depending on the size of the stones and the desired effect obtain, the center of each hole to be made and by the following by means of tools such as strawberries or similar we proceed to the formation of holes 2 in one or more operations.

    Selon l'art antérieur, le diamètre des trous forés est légèrement inférieur au diamètre maximum de la pierre et plus précisément du feuilletis. Par la suite, en se référant à la figure 2, au moyen d'un outil de coupe et dans le cas présent ce sera une fraise, on creuse l'espace entre les deux trous (partie hachurée du dessin) dans deux buts, le premier étant de laisser passer la lumière vers la partie inférieure de la gemme, ce qui permet d'obtenir la réflexion de la lumière assurant l'aspect brillant des pierres, et pour lever les grains 4 qui seront utilisés par la suite pour maintenir chaque gemme à l'intérieur du trou. Dans le cas présent, les grains sont au nombre de quatre par pierre, mais ce nombre peut varier en fonction de la grandeur des pierres et de l'effet esthétique que l'on désire obtenir. Ce qui est sûr, c'est qu'il est nécessaire que la disposition de ces grains soit tout à fait symétrique par rapport à la gemme et également par rapport à la pièce dans son ensemble.According to the prior art, the diameter of the holes drilled is slightly less than the maximum stone diameter and more precisely of the feuilletis. Subsequently, by referring to FIG. 2, by means of a cutting tool and in this case it will be a strawberry, we dig the space between the two holes (hatched part of the drawing) for two purposes, the first being to leave pass the light towards the lower part of the gem, which allows to get the reflection of the light ensuring the shiny appearance of the stones, and for lift the grains 4 which will be used later to keep each gem inside the hole. In in this case, there are four grains per stone, but this number may vary depending on the size of the stones and the aesthetic effect that desire to obtain. What is certain is that it is necessary that the arrangement of these grains is completely made symmetrical with respect to the gem and also by compared to the room as a whole.

    Lorsqu'on travaille de manière artisanale et surtout sur des métaux précieux, ce travail de fraisage se fait souvent à la main par des outils spéciaux. Il est plus difficile d'effectuer ce travail sur de l'acier ou sur des métaux durs à la main et on peut utiliser un outillage adéquat allant d'un simple appareil de fraisage guidé manuellement aux tours d'usinage numériques.When working in an artisanal way and above all on precious metals, this milling work is done often by hand using special tools. He is more difficult to do this work on steel or hard metals by hand and you can use a adequate tools ranging from a simple manual guided milling at machining lathes digital.

    Après avoir levé les grains, on procède à leur usinage pour leur donner la forme souhaitée. Dans ce but, on utilise habituellement un outil nommé perloir, mais tout autre moyen mécanique adéquat peut être utilisé.After lifting the grains, we proceed to their machining to give them the desired shape. For this purpose, we usually uses a tool called a beader, but any other suitable mechanical means may be used.

    A la figure 3, nous avons représenté l'objet de la figure 2, à la différence qu'à l'intérieur des trous 2 on a disposé les gemmes 5 représentés de manière bien entendu tout à fait schématique.In FIG. 3, we have represented the object of the Figure 2, except that inside the holes 2 we have arranged the gems 5 represented in a well heard quite schematic.

    Selon l'art antérieur, lorsqu'on dispose chaque pierre dans son trou correspondant 2, on doit forcer la pierre pour entrer dans le trou correspondant et on obtient ainsi un premier sertissage (tenue de la pierre) par déformation du métal utilisé qui est, en principe, plus mou que la pierre précieuse ou semi-précieuse. Selon la présente invention, le diamètre du trou 2 correspond exactement au diamètre maximum de la gemme (du feuilletis) et il suffit simplement de pousser la gemme à l'intérieur de ce trou, ce qui n'assure bien entendu pas une tenue de la gemme aussi efficace que lorsqu'il y a déformation du métal.According to the prior art, when each stone is placed in its corresponding hole 2, we must force the stone to enter the corresponding hole and we get thus a first setting (holding the stone) by deformation of the metal used which is, in principle, more soft as precious or semi-precious stone. According to present invention, the diameter of the hole 2 corresponds exactly the maximum gem diameter (from leaf) and just push the gem inside this hole, which of course does not holding the gem as effectively as when it there is deformation of the metal.

    Selon l'art antérieur représenté aux figures 4 et 5, chaque grain 4 doit être poussé par un outil 6 appelé onglette contre la gemme 5 et si on se réfère maintenant à la figure 5, on voit que le grain 4 vient épouser une partie de la couronne 52 de la gemme et plus précisément l'angle formé par la couronne 52, le feuilletis 51 et la culasse 53. Ainsi, la base du grain 4 est déformée, ce qui permet d'obtenir une bonne assise de la gemme 5 dans son trou et une tenue suffisante. Cette déformation du métal ne peut être obtenue bien entendu que si la pierre 52 présente une certaine résistance permettant d'obtenir la déformation du métal.According to the prior art represented in FIGS. 4 and 5, each grain 4 must be pushed by a tool 6 called tab against gem 5 and if we refer now in Figure 5, we see that the grain 4 comes marry part of the crown 52 of the gem and more precisely the angle formed by the crown 52, the laminate 51 and cylinder head 53. Thus, the base of the grain 4 is deformed, which makes it possible to obtain a good seated gem 5 in its hole and an outfit sufficient. This deformation of the metal cannot be Obviously obtained if the stone 52 has a some resistance to obtain the deformation metal.

    Ceci étant pratiquement impossible à réaliser avec l'acier et des pierres présentant une dureté inférieure à celle du diamant (10 MOHS), la présente invention propose de former par fraisage au pied du grain 4 une encoche 41, ainsi lorsque l'onglette 6 pousse le grain 4 contre la pierre 5, l'espace nécessaire pour loger la partie de la gemme, à savoir l'angle formé par la couronne 52, le feuilletis 51 et la culasse 53, est préformé, ce qui ne fait pas subir à la gemme des contraintes nécessaires à la formation d'une saignée dans le métal, comme dans l'art antérieur, qui pourraient provoquer sa destruction. Il est évident que l'espace montré à la figure 6 entre la pierre et l'encoche 41 est exagéré pour la clarté du dessin.This being practically impossible to achieve with steel and stones with lower hardness to that of diamond (10 MOHS), the present invention proposes to form by milling at the foot of grain 4 a notch 41, so when the tab 6 pushes the grain 4 against the stone 5, the space necessary to house the part of the gem, namely the angle formed by the crown 52, the laminate 51 and the cylinder head 53, is preformed, which does not subject the gem to constraints necessary for the formation of a bleeding in metal, as in the prior art, which could cause its destruction. It's obvious that the space shown in figure 6 between the stone and the notch 41 is exaggerated for the clarity of the drawing.

    En conclusion, en modifiant deux étapes de procédé habituel de sertissage à grains, à savoir premièrement creuser des trous dont le diamètre maximum correspond exactement au diamètre maximum de la gemme et deuxièmement en préformant des encoches au bas de grains, on obtient un sertissage de pierres de couleurs ou en général des pierres présentant un degré de dureté inférieur à 10 MOHS dans des métaux, tels que l'acier, sans provoquer la destruction de la gemme.In conclusion, by modifying two process steps usual grain crimping, namely firstly dig holes the maximum diameter of which corresponds exactly the maximum diameter of the gem and secondly by preforming notches at the bottom of grains, we get a setting of colored stones or in general stones with a degree of hardness less than 10 MOHS in metals, such as steel, without destroying the gem.

    A partir de ce procédé de base, il est évident que les autres opérations de polissage, finissage, etc sont des opérations conventionnelles. Ainsi, nous n'avons pas mentionné précédemment le fait qu'après avoir rabattu les grains 4 sur la gemme, on procède également à une deuxième finition afin que les grains présentent un aspect sphérique et sans bavure.From this basic process, it is obvious that the other polishing, finishing operations, etc. are conventional operations. So we don't have previously mentioned the fact that after folding grains 4 on the gem, we also carry out a second finish so that the grains have a spherical and burr-free appearance.

    Selon une variante d'exécution, lorsque l'on lève les grains, on le fait en fraisant la pièce de métal 2 dans deux directions perpendiculaires sans que ceci soit bien entendu une obligation.According to an alternative embodiment, when the grains, we do it by milling the metal piece 2 in two perpendicular directions without this being of course an obligation.

    Enfin, dans le but d'obtenir des grains très bien finis, lors de la formation de ces grains, on forme des grains qui sont relevés très haut et par la suite, on procède aux différentes opérations d'ébavurage etc et on finit par une recoupe, c'est-à-dire on coupe la partie supérieure des grains pour les amener à la hauteur voulue. Par la suite on procède au sertissage des pierres et on termine avec des travaux de finition et de polissage, aussi bien des grains et de l'ensemble de la pièce.Finally, in order to get grains very well finished, during the formation of these grains, we form grains which are raised very high and thereafter, performs the various deburring operations etc and we end up with a cut, that is to say we cut the top of the beans to bring them to the desired height. Then we proceed to crimping stones and we finish with finishing work and polishing, both of the grains and of the whole of the room.

    L'avantage de ce procédé est que l'on peut maintenant aussi bien en bijouterie et surtout en horlogerie proposer des pièces en métal dur sur lesquelles on a serti des pierres autres que le diamant, à savoir des pierres de couleurs.The advantage of this process is that we can now both in jewelry and especially in watchmaking offer hard metal parts on which we have set with stones other than diamonds, namely colored stones.

    Claims (3)

    Procédé de sertissage à grains de pierres ayant une dureté inférieure à 10 MOHS dans une pièce en métal dur, tel que l'acier, comprenant les étapes principales suivantes : a. répartition des pierres sur la pièce en métal et marquage des points représentant les centres des trous à percer, b. perçage en une ou plusieurs opérations pour obtenir des trous de diamètre et profondeur souhaités, c. formation des grains par fraisage de la pièce de métal, d. finition de la forme des grains, e. mise en place des pierres dans les trous et application des grains contre la couronne des pierres par l'intermédiaire des efforts appliqués sur chacun des grains, f. finition, polissage de la pièce ainsi formée, caractérisé en ce que les trous percés à l'étape b ont un diamètre maximum correspondant au diamètre du feuilletis des pierres permettant l'introduction des pierres dans les trous correspondants sans déformation du métal, et que l'on fraise les parties inférieures des grains pour préformer la portée de la pierre, qui viendra épouser le feuilletis lors de l'application des grains contre la couronne de chaque pierre.A method of crimping with grains of stones having a hardness of less than 10 MOHS in a piece of hard metal, such as steel, comprising the following main steps: at. distribution of the stones on the metal part and marking of the points representing the centers of the holes to be drilled, b. drilling in one or more operations to obtain holes of desired diameter and depth, vs. grain formation by milling the metal part, d. grain shape finish, e. placing stones in the holes and applying the grains against the crown of the stones by means of the forces applied to each of the grains, f. finishing, polishing of the part thus formed, characterized in that the holes drilled in step b have a maximum diameter corresponding to the diameter of the laminate of the stones allowing the introduction of the stones into the corresponding holes without deformation of the metal, and that the lower parts of the grains are milled to preform the bearing of the stone, which will marry the laminate when applying the grains against the crown of each stone. Procédé selon la revendication 1, caractérisé par le fait que la formation de grains est réalisée par le fraisage dans deux directions perpendiculaires.Method according to claim 1, characterized by that grain formation is achieved by the milling in two perpendicular directions. Procédé selon l'une des revendications 1 ou 2, caractérisé par le fait que lors de la formation de grains, on les relève plus haut que désiré, on les ébavure et on les recoupe pour les baisser à leur hauteur souhaitée.Method according to one of claims 1 or 2, characterized by the fact that during the formation of grains, we raise them higher than desired, we deburring and we cut them to lower them to their desired height.
    EP00810313A 1999-04-21 2000-04-10 Method for setting soft precious stones in a piece of hard metal Withdrawn EP1048241A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9905050 1999-04-21
    FR9905050A FR2792508B1 (en) 1999-04-21 1999-04-21 PROCESS FOR CRIMPING SOFT GRAIN STONES IN A HARD METAL PART

    Publications (1)

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    EP1048241A1 true EP1048241A1 (en) 2000-11-02

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    FR (1) FR2792508B1 (en)

    Cited By (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2004110200A3 (en) * 2003-06-11 2005-03-24 Lyon Serti Method for setting a stone in a metal element
    WO2005055757A1 (en) * 2003-12-12 2005-06-23 W D'or Brillantschmuck Gmbh Piece of jewelry with a decorative element and method and tool for producing said piece of jewelry
    EP1825773A1 (en) * 2006-02-28 2007-08-29 Blancpain S. A. Method for setting a gem in a support element
    DE202011002509U1 (en) 2011-02-08 2011-10-21 W D'or Brillantschmuck Gmbh Jewel with a jewelry element
    DE102011010665A1 (en) 2011-02-08 2012-08-09 W D'or Brillantschmuck Gmbh Jewelry piece i.e. ring, has holding elements designed as projections projecting from recesses positioned in aperture edge region, where projections are designed by material insertion caused by insertion of recesses in body edge region
    WO2012107209A1 (en) 2011-02-08 2012-08-16 W D'or Brillantschmuck Gmbh Jewelry article having a jewel element and method for producing such a jewelry article

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    Publication number Priority date Publication date Assignee Title
    GB267618A (en) * 1925-12-19 1927-03-21 Charles William Plumbridge Improvements relating to the setting of precious and other stones in articles of jewellery
    FR2171039A1 (en) * 1972-02-08 1973-09-21 Majorica Heusch Sa
    DE2531724A1 (en) * 1975-07-16 1977-01-20 Evert Hofacker Two wire setting for line of gemstones - has notches in wires and conical recesses in ring to grip stone
    EP0197871A1 (en) * 1985-03-21 1986-10-15 DIAMANT APPLICATIONS Société Anonyme dite: Method of manufacturing jewels with one or more rows of stones, and jewels obtained by this method

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB267618A (en) * 1925-12-19 1927-03-21 Charles William Plumbridge Improvements relating to the setting of precious and other stones in articles of jewellery
    FR2171039A1 (en) * 1972-02-08 1973-09-21 Majorica Heusch Sa
    DE2531724A1 (en) * 1975-07-16 1977-01-20 Evert Hofacker Two wire setting for line of gemstones - has notches in wires and conical recesses in ring to grip stone
    EP0197871A1 (en) * 1985-03-21 1986-10-15 DIAMANT APPLICATIONS Société Anonyme dite: Method of manufacturing jewels with one or more rows of stones, and jewels obtained by this method

    Cited By (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2004110200A3 (en) * 2003-06-11 2005-03-24 Lyon Serti Method for setting a stone in a metal element
    AU2004246840B2 (en) * 2003-06-11 2009-02-19 Serti, Lyon Method for setting a stone in a metal element
    JP4842808B2 (en) * 2003-06-11 2011-12-21 リヨン セルティ Method of setting stones on metal parts, and products manufactured by the method
    WO2005055757A1 (en) * 2003-12-12 2005-06-23 W D'or Brillantschmuck Gmbh Piece of jewelry with a decorative element and method and tool for producing said piece of jewelry
    EP1825773A1 (en) * 2006-02-28 2007-08-29 Blancpain S. A. Method for setting a gem in a support element
    US7971326B2 (en) 2006-02-28 2011-07-05 Blancpain S.A. Method of setting stones in a support element
    DE202011002509U1 (en) 2011-02-08 2011-10-21 W D'or Brillantschmuck Gmbh Jewel with a jewelry element
    DE102011010665A1 (en) 2011-02-08 2012-08-09 W D'or Brillantschmuck Gmbh Jewelry piece i.e. ring, has holding elements designed as projections projecting from recesses positioned in aperture edge region, where projections are designed by material insertion caused by insertion of recesses in body edge region
    WO2012107209A1 (en) 2011-02-08 2012-08-16 W D'or Brillantschmuck Gmbh Jewelry article having a jewel element and method for producing such a jewelry article

    Also Published As

    Publication number Publication date
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    FR2792508B1 (en) 2001-07-27

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