EP1222977A2 - Procédé pour la formation de chaínes ornementales - Google Patents

Procédé pour la formation de chaínes ornementales Download PDF

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Publication number
EP1222977A2
EP1222977A2 EP02000382A EP02000382A EP1222977A2 EP 1222977 A2 EP1222977 A2 EP 1222977A2 EP 02000382 A EP02000382 A EP 02000382A EP 02000382 A EP02000382 A EP 02000382A EP 1222977 A2 EP1222977 A2 EP 1222977A2
Authority
EP
European Patent Office
Prior art keywords
jewellery
manufacture
procedure
portions
small rings
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.)
Withdrawn
Application number
EP02000382A
Other languages
German (de)
English (en)
Other versions
EP1222977A3 (fr
Inventor
Gastone Bordin
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.)
PLUS GROUP SA
Original Assignee
Bordin Group 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 Bordin Group Srl filed Critical Bordin Group Srl
Publication of EP1222977A2 publication Critical patent/EP1222977A2/fr
Publication of EP1222977A3 publication Critical patent/EP1222977A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21L—MAKING METAL CHAINS
    • B21L11/00—Making chains or chain links of special shape
    • B21L11/005—Making ornamental chains

Definitions

  • the finding relates to a procedure for the manufacture of chains used for jewellery, as well as chains manufactured with the aforementioned procedure.
  • the individual small rings are obtained from a tubular semifinished product, comprised of a core made of iron, copper or any other material which is not noble, required for allowing the bending without the deformation of the small rings themselves, which is coated by a foil made from a noble material.
  • the wire thus obtained is then wound like a spiral on a mandrel of round, oval or other geometric shape, the cross section of which corresponds to the internal width of the chain rings that one is going to manufacture.
  • this spiral is sawn lengthwise, in order to obtain individual rings with slightly opened opposite ends, such to enable their linking together to form the chain.
  • the chains thus obtained are then brought into contact with aggressive substances such as hydrochloric acid, nitric acid and caustic soda and the like which provide for dissolving, through a corrosive process, the internal metallic core of the individual small rings.
  • aggressive substances such as hydrochloric acid, nitric acid and caustic soda and the like which provide for dissolving, through a corrosive process, the internal metallic core of the individual small rings.
  • the removal of the corroded metallic core occurs through openings provided in the noble metallic foil, which either are defined by the lengthwise junction, bound by the laps of the foil itself which are not perfectly set side by side or, when the tubular is welded through windows, concern the entire thickness of the foil itself.
  • the purpose of the present finding is that of providing a procedure to manufacture chains used for jewellery which is simplified with respect to known procedures.
  • the chain links be comprised of small rings formed by two portions or semi small rings previously bent and then mutually welded in their corresponding ends rather than by a single tubular body bent and welded at the point of junction of its two ends.
  • a first and relevant advantage is that of being able to manufacture chain links with a completely new shape, which cannot be manufactured with known industrial machinery.
  • each small ring 1 is comprised of two parts or semi-rings 2' and 2'' which first fit to respective opposite ends 3 to manufacture the linking together and thereafter are mutually welded along the aforesaid ends.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)
  • Toys (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP02000382A 2001-01-12 2002-01-07 Procédé pour la formation de chaínes ornementales Withdrawn EP1222977A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI010013 2001-01-12
IT2001VI000013A ITVI20010013A1 (it) 2001-01-12 2001-01-12 Procedimento per realizzare catenea scopo ornamentale

Publications (2)

Publication Number Publication Date
EP1222977A2 true EP1222977A2 (fr) 2002-07-17
EP1222977A3 EP1222977A3 (fr) 2003-01-15

Family

ID=11461488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000382A Withdrawn EP1222977A3 (fr) 2001-01-12 2002-01-07 Procédé pour la formation de chaínes ornementales

Country Status (4)

Country Link
US (1) US20020194868A1 (fr)
EP (1) EP1222977A3 (fr)
EA (1) EA002943B1 (fr)
IT (1) ITVI20010013A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111687605A (zh) * 2020-06-22 2020-09-22 四川华都核设备制造有限公司 一种控制棒系统用连接环链的制备方法及连接环链

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102909310B (zh) * 2012-10-22 2015-05-20 深圳市翠绿首饰股份有限公司 片状链扣及其自动加工设备和加工方法
USD774122S1 (en) * 2014-12-19 2016-12-13 Neckglasses, LLC Chain with pendant glasses
KR102194531B1 (ko) * 2019-08-01 2020-12-23 최윤호 고리 연결식 레이어드 구조에 의해 볼륨감과 입체감이 우수한 단조 가공 귀금속 장신구

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292637A (en) * 1941-07-02 1942-08-11 Niels E Hendrickson Chain cable
DE832734C (de) * 1950-01-10 1952-02-28 G Rau Doublefabrik Zur Herstellung hohler Goldwaren dienendes, goldummanteltes Formstueck mit Kern aus Unedelmetall
FR2446612A1 (fr) * 1979-01-19 1980-08-14 Flamor Sa Procede de fabrication d'une chaine de bijouterie et chaine obtenue par ce procede
FR2579872A1 (en) * 1985-04-04 1986-10-10 Cheval Freres Method and device for manufacturing a jewellery metal chain
US5626012A (en) * 1995-05-05 1997-05-06 Uno A Erre Italia S.P.A Method of making a decorative chain for a necklace or the like from metals having differing characteristics and resulting chain
DE19753499A1 (de) * 1997-12-03 1999-06-10 Niessing Gmbh & Co Kg Geb Verfahren zur Herstellung von Schmuckstücken oder Vorformlingen für Schmuckstücke

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292637A (en) * 1941-07-02 1942-08-11 Niels E Hendrickson Chain cable
DE832734C (de) * 1950-01-10 1952-02-28 G Rau Doublefabrik Zur Herstellung hohler Goldwaren dienendes, goldummanteltes Formstueck mit Kern aus Unedelmetall
FR2446612A1 (fr) * 1979-01-19 1980-08-14 Flamor Sa Procede de fabrication d'une chaine de bijouterie et chaine obtenue par ce procede
FR2579872A1 (en) * 1985-04-04 1986-10-10 Cheval Freres Method and device for manufacturing a jewellery metal chain
US5626012A (en) * 1995-05-05 1997-05-06 Uno A Erre Italia S.P.A Method of making a decorative chain for a necklace or the like from metals having differing characteristics and resulting chain
DE19753499A1 (de) * 1997-12-03 1999-06-10 Niessing Gmbh & Co Kg Geb Verfahren zur Herstellung von Schmuckstücken oder Vorformlingen für Schmuckstücke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111687605A (zh) * 2020-06-22 2020-09-22 四川华都核设备制造有限公司 一种控制棒系统用连接环链的制备方法及连接环链

Also Published As

Publication number Publication date
ITVI20010013A1 (it) 2002-07-12
EA002943B1 (ru) 2002-12-26
EA200101144A1 (ru) 2002-06-27
US20020194868A1 (en) 2002-12-26
EP1222977A3 (fr) 2003-01-15

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