EP3766373A1 - Support et procede de pose de pierres precieuses - Google Patents

Support et procede de pose de pierres precieuses Download PDF

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Publication number
EP3766373A1
EP3766373A1 EP20186694.4A EP20186694A EP3766373A1 EP 3766373 A1 EP3766373 A1 EP 3766373A1 EP 20186694 A EP20186694 A EP 20186694A EP 3766373 A1 EP3766373 A1 EP 3766373A1
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EP
European Patent Office
Prior art keywords
diamond
disc
base
support
front face
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.)
Pending
Application number
EP20186694.4A
Other languages
German (de)
English (en)
Inventor
Alessandro Barbini
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.)
Desire' Srl
Original Assignee
Desire' Srl
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 Desire' Srl filed Critical Desire' Srl
Publication of EP3766373A1 publication Critical patent/EP3766373A1/fr
Pending 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
    • A44C17/02—Settings for holding gems or the like, e.g. for ornaments or decorations
    • 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

Definitions

  • This invention relates to the sector of processing metals and precious stones.
  • the invention relates to a support and a method for setting precious stones, such as, for example, diamonds.
  • the supports of known type and the methods usually applied comprise the use of diamond discs interposed between the diamond and the base of the support, where the term "base” means the portion of jewellery (earring, necklace, bracelet, pendent) designed for the setting, typically integrated in the piece of jewellery. Moreover, as is known, the diamond disc is soldered to the base.
  • These discs are suitably processed, especially by diamond milling cutters, with the aim of making the surface of the disc "diamond-like".
  • grooves with a shape and size such as to imitate the polyhedral surface of diamonds are made on the surface of the disc.
  • the surface of the disc is made reflective, in this way, the surface of the disc adopts an aspect visually similar to that of a diamond.
  • the use of these diamonds discs has two main aims: to improve the brightness of the diamond and make it appear larger, acting like an extension.
  • these diamond discs are then inserted in the base of the support according to the various types of settings.
  • the diamond disc and diamond are inserted in a recess present in the base.
  • the diamond is less enhanced since only the "table" and the crown of the latter are visible.
  • the diamond is more enhanced since, in addition to the "table" and crown, at least a portion of the dome of the diamond pad is visible.
  • the diamond disc as it is not recessed inside the base but resting on it, further improves the appearance of the diamond, apparently also increasing its longitudinal dimension, since the lateral surface of the diamond disc is visible.
  • the diamond disc is sized to be inserted on a base supporting surface which is limited by the presence of the prongs.
  • the diamond disc must have a diameter such that it can be housed "in the middle" of the prongs.
  • the size of the diamond disc is therefore greatly limited.
  • the prongs extend vertically away from the front face of the base and retain the diamond.
  • they are soldered directly on the front face of the base or on the lateral surface of the base. In the first case, the disadvantage is obviously greater.
  • the prior art methods comprise soldering the disc at the base of the support following the mirror polishing machining since mirror polishing of the disc behind the fixing is very complicated.
  • the soldering process must be robust in such a way as to fix the diamond disc at the base in an irreversible and stable manner.
  • the diamond disc loses part of the surface characteristics acquired, becoming opaque and partly losing the surface grooves. In effect, part of the soldering deposit settles on the surface of the diamond disc and in particular in the grooves.
  • the technical purpose which forms the basis of the invention is to provide a support and a method for setting diamonds documents which overcomes at least some of the above-mentioned drawbacks of the prior art.
  • the aim of the invention is to provide a support and a method for setting diamonds which is able to optimise the use of the diamond disc in such a way as to further enhance the diamond which will be housed on it.
  • a further aim of the invention is to provide a support and a method for setting diamonds which is able to optimise the step of fixing the diamond disc to the base, in such a way that the mirror polishing of the disc is not adversely affected.
  • a support which comprises a base and a diamond disc.
  • the base has a front face equipped with a plurality of prongs, extending away from the front face, whose function is to retain the diamond at its girdle.
  • the diamond disc is fixed to the front face of the base and is configured to support the diamond.
  • the diamond disc comprises receiving portions angularly positioned around a central zone of the diamond disc and at least partly shaped to match the prongs, in such a way as to form a stable coupling between the diamond disc and the base.
  • this shape makes it possible to form a larger diamond disc, since it is configured to adapt to the specific shape adopted by the prongs.
  • the invention also relates to a method for setting diamonds which comprises the steps of:
  • the numeral 1 denotes in its entirety a support for the setting of diamonds whilst the diamond, shown in transparency in the drawings, is labelled "D".
  • the support 1 according to the invention is particularly suitable for supporting a diamond "D", but without this meaning that it cannot also be used to set different stones.
  • the support mainly comprises two elements: a base 10 and a disc 20.
  • the base 10 is a piece of jewellery, which may be, for example, a ring, an earring, a pendant, a bracelet or a necklace, prepared for the setting of the diamond "D".
  • the base 10 may be made in one piece with the item of jewellery or alternatively be a separate element, to be fixed to the item of jewellery. Structurally, the base 10 has a front face 11 equipped with a plurality of prongs 12 extending away from the front face 11.
  • the prongs 12 extend from a perimeter strip, that is to say, a zone between the centre and the edge of the front face 11 of the base 10.
  • the prongs 12 are made at an edge portion of the front face 11.
  • the prongs 12 may be positioned according to different geometries, depending on the characteristics of the precious stone which they must support.
  • the prongs 12 may be arranged circumferentially and preferably equidistant at the front face 11 (that is to say, on its surface or at its edge).
  • the function of the prongs 12 is to retain the diamond "D" acting on a relative girdle portion.
  • horizontal grooves are made on the prongs 12, shaped to match (known in the jargon of the trade as "crack") for interfacing with a diamond girdle portion "D", in such a way as to allow a better coupling between prongs 12 and diamond "D".
  • the diamond disc 20 has a preferably circular shape. It is made of a metal material, preferably a precious metal, even more preferably a gold alloy.
  • the term "diamond disc” means that the disc has been subjected to a machining performed by mirror polishing machines, in particular it has been the object of a machining performed by a diamond cutter.
  • the diamond disc 20 has an improved reflectance, a plurality of grooves imitating those of a diamond and a colour such as to imitate the surface characteristics.
  • the diamond disc 20 reproduces the appearance of a diamond "D".
  • the disc 20 preferably has a central hole 22, which is shaped in such a way as to receive at least one portion of the rear dome of the diamond "D", preferably only the rear apex of the diamond "D" is inserted inside it.
  • the diamond disc 20 has receiving portions 21 shaped to engage the prongs 12 in such a way as to constrain the diamond disc 20 to the base 10.
  • the receiving portions 21 are made in such a way as to allow a coupling between the diamond disc 20 and the base 10 engaging the prongs 12 of the latter, so these receiving portions are made as a function of the shape of the prongs 12 present on the base 10.
  • the receiving portions 21 are made in the form of through holes and are made in a perimeter strip of the diamond disc 20 or, in other words, at a zone between the centre and the edge of the diamond disc 20. According to this embodiment, the receiving portions 21 are made in such a way as to fit the prongs 12, as shown in the drawings.
  • the receiving portions 21 are made in the form of concave recesses, preferably with an curved cross section, made on the edge of the diamond disc 20. According to this embodiment, the receiving portions 21 partly enclose a portion of the prongs 12.
  • the diamond disc 20 has both the previous embodiments of the receiving portions 21.
  • the disc 20 therefore has at least one receiving portion 21 in the form of a through hole and at least one receiving portion 21 in the form of a concave recess.
  • the diamond disc 20 also has a shape matching a supporting surface defined by the front face 11 and by the prongs 12 of the base 10, in such a way as to guarantee and optimise the adhesion between the two.
  • the diamond disc 20 may have a surface greater than that of the prior art diamond discs since it is not limited by the structure defined by the prongs 12 on the front face 11.
  • the fixing step may be performed in a less invasive manner.
  • the diamond disc 20 is fixed to the base 10 by soldering.
  • the purpose of this soldering is to irreversibly fix the diamond disc 20 to the base 10, preventing the movement of the diamond disc 20 along the prongs 12.
  • the soldering is performed preferably by means of a laser soldering unit and the disc 20 is soldered to the base 10 close to a peripheral zone of the latter. This soldering is not invasive since it need not constrain the entire surface of the diamond disc 20 to the front face 11 of the base 10, but only its receiving portions 21 to the prongs 12, preserving the mirror polishing performed by the diamond cutter on the diamond disc 20.
  • the diamond disc 20 will maintain the surface characteristics obtained wit the mirror polishing.
  • the invention achieves the preset aims overcoming the drawbacks of the prior art and providing a support for the setting of diamonds which is able to optimise the use of the diamond disc 20 in such a way as to further enhance the diamond "D" which will be housed on it.
  • the invention also relates to a method for setting diamonds, in particular in a support 1 having one or more of the technical features described above.
  • a base 10 is prepared, where the term "base” means the portion of jewellery prepared for the setting.
  • the base 10 comprises a front face 11 equipped with a plurality of prongs 12, which extend away from the front face 11 and are configured to retain a diamond "D" at a relative girdle portion.
  • a disc is also prepared, preferably made of metal material, for example gold.
  • the receiving portions 21 can be made in the form of through holes, therefore made in a portion of the disc between the centre and the edge or they can be made in the form of concave recesses, therefore made directly on the edge of the disc. According to a further embodiment not illustrated in the drawings, the receiving portions 21 are made on the disc in both the embodiments of through holes and grooves.
  • the step of perforating the disc to obtain the receiving portions 21 also comprises a step of perforating the disc to obtain a central hole 22 shaped in such a way as to receive a dome of the diamond, preferably shaped in such a way as to receive only an apex of the diamond.
  • a step is performed of machining the disc, preferably using a diamond cutter, in such a way as to make the diamond disc, obtaining a diamond disc 20.
  • surface grooves are made with a shape and size such as to imitate the polyhedral surface of the diamonds.
  • the surface of the disc is machined to improve its reflective properties.
  • the diamond disc 20 is applied to the base 10 by reciprocal engagement of the prongs 12 with the receiving portions 21. Subsequently, the diamond disc 20 is moved along the prongs 12 towards the supporting surface of the surface portion 11 of the base 10. Thanks to the shape of the receiving portions 21 (which are shaped to match an outer profile of the prongs 12), the diamond disc 21 can translate along the prongs 12 which act as a guide for the movement of the diamond disc 20.
  • the fixing step is preferably performed by soldering, and still more preferably by laser soldering.
  • the soldering step is performed by soldering the diamond disc 20 to the base 10 in a peripheral portion of the latter.
  • the method comprises a further step of machining a portion of the prongs 12 in such a way as to make horizontal grooves shaped for a unique coupling with a girdle portion of the diamond.
  • the method described above overcomes the drawbacks of the prior art allowing the assembly of a support for the setting of diamonds which is able to improve the overall appearance of the item of jewellery comprising the diamond.
  • this aim is achieved by using a diamond disc having receiving portions which allow an optimum sizing and a soldering at the base which is less invasive and not harmful for its surface finish.

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  • Adornments (AREA)
  • Revetment (AREA)
EP20186694.4A 2019-07-19 2020-07-20 Support et procede de pose de pierres precieuses Pending EP3766373A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000012420A IT201900012420A1 (it) 2019-07-19 2019-07-19 Supporto e metodo per l’incastonatura di pietre preziose

Publications (1)

Publication Number Publication Date
EP3766373A1 true EP3766373A1 (fr) 2021-01-20

Family

ID=68988098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20186694.4A Pending EP3766373A1 (fr) 2019-07-19 2020-07-20 Support et procede de pose de pierres precieuses

Country Status (2)

Country Link
EP (1) EP3766373A1 (fr)
IT (1) IT201900012420A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160316864A1 (en) * 2015-04-30 2016-11-03 Hermes Sellier Article of jewelry and /or of lapidary work
CN105433533B (zh) * 2015-12-17 2017-07-25 深圳市缘与美实业有限公司 一种用于视觉增大的钻石镶嵌装置及其实现方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160316864A1 (en) * 2015-04-30 2016-11-03 Hermes Sellier Article of jewelry and /or of lapidary work
CN105433533B (zh) * 2015-12-17 2017-07-25 深圳市缘与美实业有限公司 一种用于视觉增大的钻石镶嵌装置及其实现方法

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Publication number Publication date
IT201900012420A1 (it) 2021-01-19

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