EP0044254A1 - Process for securing precious stones on a mount - Google Patents

Process for securing precious stones on a mount Download PDF

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Publication number
EP0044254A1
EP0044254A1 EP81401113A EP81401113A EP0044254A1 EP 0044254 A1 EP0044254 A1 EP 0044254A1 EP 81401113 A EP81401113 A EP 81401113A EP 81401113 A EP81401113 A EP 81401113A EP 0044254 A1 EP0044254 A1 EP 0044254A1
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EP
European Patent Office
Prior art keywords
frame
stones
stone
hole
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP81401113A
Other languages
German (de)
French (fr)
Other versions
EP0044254B1 (en
Inventor
Alain Plantureux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diamant Applications SA
Original Assignee
Chancel Jean-Louis
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chancel Jean-Louis filed Critical Chancel Jean-Louis
Priority to AT81401113T priority Critical patent/ATE7845T1/en
Publication of EP0044254A1 publication Critical patent/EP0044254A1/en
Application granted granted Critical
Publication of EP0044254B1 publication Critical patent/EP0044254B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/04—Setting gems in jewellery; Setting-tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/23—Gem and jewel setting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49945—Assembling or joining by driven force fit

Definitions

  • the present invention relates to a method of attaching precious stones to a frame; it also relates to the products obtained by this process.
  • the present invention relates to an industrial method of fixing precious stones on a frame making it possible to overcome the difficulties due to the use of known fixing techniques.
  • the method according to the present invention is characterized in that the fixing is carried out using individual parts, constituted by a head and by a rod, said head having a frustoconical lower part produced so as to bear on the bevel of the table of the stone or stones to be fixed and the said rod being provided with at least one protuberance which cooperates with the corresponding hole provided in the frame causes sufficient friction to cause the jamming of each individual piece put in place.
  • the individual parts which can be used according to the invention therefore comprise a rod and a head.
  • the rod is intended to enter a hole in the frame so as to secure said part with the frame.
  • essentially the wedging of said rod will be used inside the hole made in the frame.
  • a gold frame and an individual piece also made of gold are used, it has been found that for the rods of at least one circular protrusion, a frame having a hardness of 50 to 60 vickers, a rivet of 130 to 140 vickers and to ensure that the diameter of the part of the rod which comes into contact with the internal surface of the hole is approximately 0.02 mm greater than the diameter of said hole.
  • protrusion on the head of the individual parts is a metal portion projecting from the cylindrical surface forming the rod.
  • This outgrowth can be formed of several individual elements (pins) or of a collar or preferably a frustoconical collar whose ends are very fine (see figure). There may be one or more similar or different growths on the same stem.
  • the heads of the individual parts which can be used according to the invention are intended, by their lower face, to press at a point (or along a small area) on the upper face of the edge of a stone. It therefore suffices that this head has sufficient width dimensions (beyond the rod) to rest on the stone (s). It will be noted that in a particular embodiment of the invention, said head can be formed, on the spot, by deformation of the end of the rod which comes out of the hole made in the frame.
  • the heads can have very different circular, ellipsoidal, triangular, star, etc. shapes.
  • the present invention can be used for fixing precious stones on any frame but it is particularly advantageous in the case of a metal or precious metal alloy frame.
  • the preparation of the frame for implementing the invention is particularly simple; it will suffice on the one hand, to make in this frame holes or cells of cylindrical shape capable of receiving the stones and then on the other hand, to drill holes, suitably placed, intended to receive the rods of the individual pieces usable. It will be noted in particular that if the holes or cells intended to receive the stones must have diameters adapted to said parts, the precision of the machining of these holes is much less important than in the case of fixing the stones by other industrialized systems. .

Abstract

A setting comprising a mounting, a stone and fastening elements, said mounting containing at least two smooth bore holes spaced apart a distance to receive between them the stone and said fastening elements each comprising a head of larger diameter than the holes, each having an underside corresponding substantially in slope to the slope of the table of the stone and a shank of smaller diameter than the hole having at least one radial protrusion of larger diameter than the hole, said fastening elements being forced into the holes to a position such that the undersides of the heads have engagement with the table of the stone and the protrusions are wedged into the sides of the hole and a method of assembling and securing the stones to the mounting.

Description

La présente invention concerne un procédé de fixation de pierres précieuses sur une monture ; elle concerne également les produits obtenus par ce procédé.The present invention relates to a method of attaching precious stones to a frame; it also relates to the products obtained by this process.

Il est connu, en joaillerie, de fixer les pierres précieuses sur une monture support au moyen de griffes façonnées sur ladite monture.It is known, in jewelry, to fix the precious stones on a support frame by means of claws shaped on said frame.

On a également décrit, dans le brevet français 1 379 772, un procédé de fixation des pierres précieuses sur une monture consistant essentiellement à utiliser des étriers disposés sur la monture perpendiculairement à l'alignement desdites pierres et appuyant sur deux pierres jointives dudit alignement. La fixation des étriers sur la monture est réalisée par brasage. Ce procédé comporte certaines limitations lorsque l'on veut fixer plusieurs rangées contigües de pierres et présente quelques difficultés pour la fixation des étriers sur la monture.We have also described, in French patent 1 379 772, a method of fixing precious stones on a frame consisting essentially of using stirrups arranged on the frame perpendicular to the alignment of said stones and pressing on two adjoining stones of said alignment. The stirrups are fixed to the frame by brazing. This process has certain limitations when one wants to fix several contiguous rows of stones and presents some difficulties for fixing the stirrups on the frame.

Enfin on a également décrit, dans le brevet français 807 480, un système de montage de pierres pour joaillerie dans lequel la culasse de la pierre est immobilisée dans un chaton en forme de cuvette tronconique, à génératrice concave, par au moins deux vis qui se fixent dans des oreilles encadrant ladite cuvette et dont les têtes, à base tronconique, prennent appui sur le biseau de la table de cette pierre. Ce système de montage est théoriquement intéressant mais est relativement difficile à mettre en oeuvre compte tenu des dimensions des vis (et des pas de vis) à utiliser.Finally, in French patent 807,480, a system for mounting stones for jewelry has also been described in which the breech of the stone is immobilized in a kitten in the form of a frustoconical bowl, with concave generator, by at least two screws which are fix in ears framing said bowl and whose heads, frustoconical base, bear on the bevel of the table of this stone. This mounting system is theoretically interesting but is relatively difficult to implement given the dimensions of the screws (and the threads) to be used.

La présente invention vise un procédé industriel de fixation de pierres précieuses sur une monture permettant de surmonter les difficultés dues à l'utilisation des techniques de fixation connues.The present invention relates to an industrial method of fixing precious stones on a frame making it possible to overcome the difficulties due to the use of known fixing techniques.

Le procédé selon la présente invention est caractérisé en ce que la fixation est réalisée à l'aide de pièces individuelles, constituées par une tête et par une tige, ladite tête présentant une partie inférieure tronconique réalisée de façon à prendre appui sur le biseau de la table de la ou des pierres à fixer et ladite.tige étant pourvue d'au moins une excroissance qui coopèrant avec le trou correspondant ménagé dans la montureprovoque un frottement suffisant pour provoquer le coincement de chaque pièce individuelle mise en place.The method according to the present invention is characterized in that the fixing is carried out using individual parts, constituted by a head and by a rod, said head having a frustoconical lower part produced so as to bear on the bevel of the table of the stone or stones to be fixed and the said rod being provided with at least one protuberance which cooperates with the corresponding hole provided in the frame causes sufficient friction to cause the jamming of each individual piece put in place.

Les pièces individuelles utilisables selon l'invention comportent donc une tige et une tête.The individual parts which can be used according to the invention therefore comprise a rod and a head.

La tige est destinée à entrer dans un trou ménagé dans la monture de façon à réaliser une solidarisation de ladite pièce avec la monture. Pour réaliser cette solidarisation on utilisera essentiellement le coincement de ladite tige (munie d'au moins une excroissance) à l'intérieur du trou ménagé dans la monture. Dans le cas particulier où l'on utilise une monture en or et une pièce individuelle également en or, il a été trouvé, que pour les tiges d'au moins une excroissance circulaire on devait employer de préférence une monture ayant une dureté de 50 à 60 vickers, un rivet de 130 à 140 vickers et à faire en sorte que le diamètre de la partie de la tige qui entre en contact avec la surface interne du trou soit d'environ 0,02 mm supérieur au diamètre dudit trou.The rod is intended to enter a hole in the frame so as to secure said part with the frame. To achieve this joining, essentially the wedging of said rod (provided with at least one protuberance) will be used inside the hole made in the frame. In the particular case where a gold frame and an individual piece also made of gold are used, it has been found that for the rods of at least one circular protrusion, a frame having a hardness of 50 to 60 vickers, a rivet of 130 to 140 vickers and to ensure that the diameter of the part of the rod which comes into contact with the internal surface of the hole is approximately 0.02 mm greater than the diameter of said hole.

Il est possible après mise en place des pierres au moyen de ces pièces individuelles de solidariser ces pièces avec la monture à l'aide d'un point de soudure mais cette précaution n'est pas indispensable.It is possible after placing stones using these individual parts to secure these parts with the frame using a welding point but this precaution is not essential.

Ce que l'on appelle "excroissance" sur la tiqe des pièces individuelles est une portion métalliaue faisant saillie sur la surface cylindrique formant la tige. Cette excroissance peut être formée de plusieurs élément individuels (picots) ou d'une collerette ou de préférence une collerette tronconique dont les extrémités sont très fines (cf. figure). Il peut y avoir une ou plusieurs excroissances analogues ou différentes sur la même tige.What is called "protrusion" on the head of the individual parts is a metal portion projecting from the cylindrical surface forming the rod. This outgrowth can be formed of several individual elements (pins) or of a collar or preferably a frustoconical collar whose ends are very fine (see figure). There may be one or more similar or different growths on the same stem.

Les têtes des pièces individuelles utilisables selon l'invention sont destinées, par leur face inférieure, à appuyer en un point (ou suivant une faible surface) sur la face supérieure du bord d'une pierre. Il suffit donc que cette tête ait des dimensions suffisantes en largeur (au-delà de la tige) pour s'appuyer sur la (ou les) pierre. On notera que dans un mode de réalisation particulier de l'invention ladite tête peut être formée, sur place, par déformation de l'extrémité de la tige qui.sort du trou pratiqué dans la monture. Les têtes peuvent avoir des formes très différentes circulaires, ellipsoïdales, triangulaires, en étoile, etc...The heads of the individual parts which can be used according to the invention are intended, by their lower face, to press at a point (or along a small area) on the upper face of the edge of a stone. It therefore suffices that this head has sufficient width dimensions (beyond the rod) to rest on the stone (s). It will be noted that in a particular embodiment of the invention, said head can be formed, on the spot, by deformation of the end of the rod which comes out of the hole made in the frame. The heads can have very different circular, ellipsoidal, triangular, star, etc. shapes.

Dans le cas où l'on veut réaliser la fixation d'une seule pierre sur une monture, on utilisera au moins deux pièces individuelles selon l'invention.In the case where it is desired to fix a single stone on a frame, at least two individual pieces according to the invention will be used.

Mais lorsque l'on veut réaliser la fixation de plusieurs pierres, il est très avantageux selon l'invention de faire en sorte que chaque pièce appuie sur au moins deux pierres contigües. Si les pierres sont disposées selon une rangée on utilisera, de préférence, de part et d'autre de l'axe de cette rangée, deux pièces s'appuyant chacune sur deux pierres contigües. Si les pierres sont disposées en plusieurs rangées on aura avantage, selon la disposition relative des pierres, à utiliser des pièces aptes à s'appuyer sur trois ou quatre des pierres contigues.But when it is desired to fix several stones, it is very advantageous according to the invention to ensure that each piece presses on at least two adjoining stones. If the stones are arranged in a row, preferably, on either side of the axis of this row, two pieces each resting on two adjoining stones. If the stones are arranged in several rows, it will be advantageous, depending on the relative arrangement of the stones, to use pieces capable of resting on three or four of the adjoining stones.

La présente invention est utilisable à la fixation de pierres précieuses sur des montures quelconque mais elle est particulièrement intéressante dans le cas de monture en métal ou alliage métallique précieux.The present invention can be used for fixing precious stones on any frame but it is particularly advantageous in the case of a metal or precious metal alloy frame.

La .préparation de la monture pour mettre en oeuvre l'invention est particulièrement simple ; il suffira d'une part, de réaliser dans cette monture des trous ou alvéoles de forme cylindrique susceptibles de recevoir les pierres puis d'autre part, de percer des trous, convenablement placés, destinés à recevoir les tiges des pièces individuelles utilisables. On notera en particulier que si les trous ou alvéoles destinés à recevoir les pierres doivent avoir des diamètres adaptés auxdites pièces, la précision de l'usinage de ces trous est nettement moins importante que dans le cas de fixation des pierres par d'autres systèmes industrialisés.The preparation of the frame for implementing the invention is particularly simple; it will suffice on the one hand, to make in this frame holes or cells of cylindrical shape capable of receiving the stones and then on the other hand, to drill holes, suitably placed, intended to receive the rods of the individual pieces usable. It will be noted in particular that if the holes or cells intended to receive the stones must have diameters adapted to said parts, the precision of the machining of these holes is much less important than in the case of fixing the stones by other industrialized systems. .

A titre d'exemple on a représenté sur la figure unique une pièce individuelle selon l'invention utilisée pour la fixation de deux pierres contigües sur une monture.By way of example, there is shown in the single figure an individual piece according to the invention used for fixing two adjoining stones on a frame.

Sur cette figure sont schématisés :

  • - en 1 la monture ; cette monture est en or d'une dureté de 55 vickers ; dans cette monture on a ménagé un trou borgne 2 de diamètre 0,43 mm,
  • - en 3 deux pierres qui sont représentées comme disposées sur la surface supérieure de la monture, en fait, compte tenu de la forme des pierres précieuses et notamment par exemple des diamants, ces pierres sont disposées dans des trous (non représentés) ménagés dans la monture.
  • - en 4 la pièce individuelle de fixation qui est constituée d'une tige 5 et d'une tête 6 ; la tiqe présente trois excroissances qui ont la forme de tronc de cône et qui donnent à ladite tige la forme générale d'un sapin ; ces excroissances ont des diamètres de 0,45 mm et la pièce individuelle est réalisée en un or ayant une dureté de 130 vickers ; la tête de chaque pièce individuelle presse, par sa face inférieure, le biseau de la table des deux pierres 3 voisines.
In this figure are shown schematically:
  • - in 1 the frame; this setting is made of gold with a hardness of 55 vickers; in this mount, a blind hole 2 with a diameter of 0.43 mm has been provided,
  • - In 3 two stones which are shown as arranged on the upper surface of the frame, in fact, taking into account the shape of the precious stones and in particular for example diamonds, these stones are placed in holes (not shown) formed in the mount.
  • - In 4 the individual fixing piece which consists of a rod 5 and a head 6; the tick has three outgrowths which have the shape of a truncated cone and which give said rod the general shape of a fir tree; these outgrowths have diameters of 0.45 mm and the individual piece is made of gold having a hardness of 130 vickers; the head of each individual piece presses, by its underside, the bevel of the table of two neighboring stones 3.

Claims (2)

1. Procédé de fixation de pierres précieuses sur une monture, caractérisé en ce que la fixation est réalisée à l'aide de pièces individuelles, constituées par une tête et par une tige, ladite tête présentant une partie inférieure tronconique réalisée de façon à prendre appui sur le biseau de la table de la ou des pierres à fixer et ladite tige étant pourvue d'au moins une excroissance qui, coopérant avec le trou correspondant ménagé dans la monture, provoque un frottement suffisant pour provoquer le coincement de chaque pièce individuelle mise en place.1. Method for fixing precious stones on a frame, characterized in that the fixing is carried out using individual pieces, constituted by a head and by a rod, said head having a frustoconical lower part produced so as to take support on the bevel of the table of the stone or stones to be fixed and said rod being provided with at least one projection which, cooperating with the corresponding hole provided in the frame, causes sufficient friction to cause the jamming of each individual piece put in square. 2. Procédé selon la revendication 1, caractérisé en ce que la monture et lesdites pièces individuelles sont en or, ladite monture étant en or d'une dureté de 50 à 60 vikers, lesdites pièces étant en or d'une dureté de 130 à 140 vickers et que le diamètre de la partie de la tige (excroissance) en contact avec ledit trou est supérieure d'environ 0,02 mm au diamètre dudit trou.2. Method according to claim 1, characterized in that the frame and said individual pieces are made of gold, said frame being made of gold with a hardness of 50 to 60 vikers, said pieces being made of gold having a hardness of 130 to 140 vickers and that the diameter of the part of the rod (protuberance) in contact with said hole is approximately 0.02 mm greater than the diameter of said hole.
EP81401113A 1980-07-11 1981-07-09 Process for securing precious stones on a mount Expired EP0044254B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401113T ATE7845T1 (en) 1980-07-11 1981-07-09 METHOD OF FIXING GEMS IN A SETTING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8015569 1980-07-11
FR8015569A FR2486374A1 (en) 1980-07-11 1980-07-11 PROCESS FOR FIXING PRECIOUS STONES ON A FRAME AND PRODUCTS OBTAINED

Publications (2)

Publication Number Publication Date
EP0044254A1 true EP0044254A1 (en) 1982-01-20
EP0044254B1 EP0044254B1 (en) 1984-06-13

Family

ID=9244141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401113A Expired EP0044254B1 (en) 1980-07-11 1981-07-09 Process for securing precious stones on a mount

Country Status (5)

Country Link
US (1) US4543698A (en)
EP (1) EP0044254B1 (en)
AT (1) ATE7845T1 (en)
DE (1) DE3164148D1 (en)
FR (1) FR2486374A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089906A1 (en) * 1982-03-24 1983-09-28 Philippe Cupillard Setting of stones for articles of jewellery
US5423196A (en) * 1994-04-14 1995-06-13 Pollack; Johan Method of mounting gems flush to one another in an article of jewelry, and articles of jewelry produced by such method
US6393680B1 (en) 1999-11-19 2002-05-28 Continental Jewelry (Usa) Inc. Method for setting precious gems in jewelry through the use of screws and other stabilizing means

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750457A (en) * 1986-12-02 1988-06-14 Loctite Corporation Automobile engine cup plug and assembly method
US5765398A (en) * 1996-11-04 1998-06-16 Marquesa, Inc. Method and apparatus for assembling stones in jewelry
US5924321A (en) * 1997-04-29 1999-07-20 Mercury Products Corp. Core plug formation die apparatus and method of manufacturing a core plug
US6223579B1 (en) 1997-04-29 2001-05-01 Mercury Products Corporation Core plug formation die apparatus and method of manufacturing a core plug
US6412304B1 (en) 1999-05-24 2002-07-02 Stuart J. Adelman Jewelry

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR807480A (en) * 1936-06-24 1937-01-13 Maynier & G Pincon V Stone mounting system for jewelry, jewelry or other applications

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US1546358A (en) * 1924-12-01 1925-07-21 Toledo Steel Products Company Method of securing valve stems to heads
US1804833A (en) * 1929-08-22 1931-05-12 Walter C Johnston Ornamental article and method of making the same
US1815165A (en) * 1929-10-30 1931-07-21 Sparks Withington Co Control knob for condensers
US1926197A (en) * 1932-09-14 1933-09-12 American Hard Rubber Co Pipe coupling
US2195598A (en) * 1937-07-21 1940-04-02 Illinois Tool Works Fastening device
US2318776A (en) * 1940-08-04 1943-05-11 Richard J Haug Tenon anchor
US2671945A (en) * 1950-02-13 1954-03-16 Harry H Kretzer Jewel installing and removing device
GB1047829A (en) * 1963-10-17 1966-11-09 Francis Chirol A method for securing stones or the like on a mount
US3349649A (en) * 1965-07-26 1967-10-31 Joseph J Mele Press-fit bushing
GB1183253A (en) * 1966-04-28 1970-03-04 Henri Favre A Process for Setting Precious Stones, and Jewellery Resulting from this Process
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US4222245A (en) * 1979-01-22 1980-09-16 Jean Vitau Setting for precious stones or the like and a method for mounting precious stones or the like in a setting
US4292818A (en) * 1979-09-17 1981-10-06 Jean Vitau Setting and method for mounting precious stones and the like therein

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR807480A (en) * 1936-06-24 1937-01-13 Maynier & G Pincon V Stone mounting system for jewelry, jewelry or other applications

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089906A1 (en) * 1982-03-24 1983-09-28 Philippe Cupillard Setting of stones for articles of jewellery
FR2523821A1 (en) * 1982-03-24 1983-09-30 Cupillard Philippe STONE MOUNTING SYSTEM FOR JEWELERY ITEMS
US5423196A (en) * 1994-04-14 1995-06-13 Pollack; Johan Method of mounting gems flush to one another in an article of jewelry, and articles of jewelry produced by such method
US6393680B1 (en) 1999-11-19 2002-05-28 Continental Jewelry (Usa) Inc. Method for setting precious gems in jewelry through the use of screws and other stabilizing means
US6415629B1 (en) * 1999-11-19 2002-07-09 Continential Jewelry (Usa) Inc. Apparatus for setting precious gems in jewelry through the use of screws and other stabilizing means

Also Published As

Publication number Publication date
US4543698A (en) 1985-10-01
EP0044254B1 (en) 1984-06-13
FR2486374B1 (en) 1984-01-06
FR2486374A1 (en) 1982-01-15
ATE7845T1 (en) 1984-06-15
DE3164148D1 (en) 1984-07-19

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