EP0470937A1 - Dekorative Kette, Kordelkette genannt, die man durch Verwendung "C"-förmiger Glieder, welche aus dünnem Blattmaterial gestanzt werden, erhält - Google Patents

Dekorative Kette, Kordelkette genannt, die man durch Verwendung "C"-förmiger Glieder, welche aus dünnem Blattmaterial gestanzt werden, erhält Download PDF

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Publication number
EP0470937A1
EP0470937A1 EP91830332A EP91830332A EP0470937A1 EP 0470937 A1 EP0470937 A1 EP 0470937A1 EP 91830332 A EP91830332 A EP 91830332A EP 91830332 A EP91830332 A EP 91830332A EP 0470937 A1 EP0470937 A1 EP 0470937A1
Authority
EP
European Patent Office
Prior art keywords
links
chain
shaped
decorative
procedure
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Withdrawn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
EP91830332A
Other languages
English (en)
French (fr)
Inventor
Gabriele Bigazzi
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.)
La Bella Giuseppina Di Bigazzi Vittorio & C SNC
Original Assignee
La Bella Giuseppina Di Bigazzi Vittorio & C SNC
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 La Bella Giuseppina Di Bigazzi Vittorio & C SNC filed Critical La Bella Giuseppina Di Bigazzi Vittorio & C SNC
Publication of EP0470937A1 publication Critical patent/EP0470937A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C11/00—Watch chains; Ornamental chains

Definitions

  • the invention relates to a method for the production of a particular decorative chain, of the type known as "rope chain”, as well as a chain - usually decorative - of the abovementioned type called “rope chain”, formed from pairs of open (“C " -shaped) links, the two links of each pair being interconnected in opposite positions, staggered and crossed in relation to one another, and soldered thus, the links of one pair engaging those of adjacent pairs.
  • a particular decorative chain of the type known as "rope chain”
  • a chain - usually decorative - of the abovementioned type called “rope chain” formed from pairs of open (“C " -shaped) links, the two links of each pair being interconnected in opposite positions, staggered and crossed in relation to one another, and soldered thus, the links of one pair engaging those of adjacent pairs.
  • Chains of this type thus far have been produced using filiform material which is profiled to a greater or lesser extent and which is wound on a mandrel in order to form a plurality of spirals; these are then, by means of mechanical working, cut by means of a longitudinal cutting operation in order to form the individual open, that is to say "C"-shaped links for the formation of the double links of the chain; the section can also be a section which is hollow for reasons of lightness with the same volume, which is important for the production of chains using precious metals.
  • the working becomes expensive and is limited to particular shapes of the individual link and therefore of the whole of the chain, precisely because of the nature of the starting material and of the working which this material undergoes. In particular, sharp angles are not possible in the links, and surface working is not possible, unless very limited, because of the difficulty of working both on the starting material and on the open-link pieces produced using this starting material.
  • the invention relates to a procedure and a chain of the "rope chain” type, which excludes these abovementioned and other limitations of chains of this type and of traditional shape, and makes it possible to achieve advantages which will become clear from reading the following text.
  • a rope chain according to the invention essentially comprises links which are produced from stamped out thin sheet, and are thus capable of being given shapes as can be obtained using the technique of stamping out.
  • Another subject of the invention is a procedure for producing a chain of the type called "rope chain", formed from pairs of open (“C"-shaped) links, the two links of each pair being interconnected in opposite positions, staggered and crossed in relation to one another, and soldered thus, the links of one pair engaging those of adjacent pairs;
  • the procedure envisages the formation of the "C"-shaped links by stamping out from thin metal sheet, usually precious metal.
  • the links can be obtained from relatively very thin sheet in order to obtain a great difference between the thickness and the dimensions of the link in the plane of lying of the link itself, with all the advantages which can derive therefrom from the esthetic point of view.
  • the working procedure for stamping out permits working even of relatively very small links, which would not be easily obtainable using the conventional working system from filiform material wound in spirals and cut.
  • a link for a rope type chain is produced using two "C"-shaped link components indicated by 1 and 3, usually of almost rectangular development, and open on one internal side, which permits the mutual connection of the two links 1 and 3, as shown in said figures, and that is to say with a slight mutual stagger, with an opposite orientation of the two openings and with a crossed positioning of the two links which are then soldered at 5 along the parallel and adjoining sides of the links themselves.
  • FIG. 3 A component 11 like those 1 and 3, produced according to the invention, is shown in Fig. 3, in which it can be clearly seen that the component can be stamped out from band N or from thin sheet, and each stamped-out link element 11 is evidently of a sheet thickness corresponding to that of the starting material N, shaped like the stamping-out tool and therefore without particular limitations even of angling and of peripheral profiling of said link elements 11.
  • the links are obtained either undeformed in the plane of stamping out or even deformed in the desired manner, all by means of mechanical working which is also simultaneous with the stamping out.
  • the dimensions in the principal plane of lying of the link can be greatly increased in relation to the thickness of the link, which is that of the band-like or other starting sheet material N.
  • the principal surface of the link can be produced using special working for a polish which is maintained even after working.
  • the external edges, in particular the longitudinal edges 11A which are adjacent to the edge which is interrupted for the formation of the C shape, can be shaped expediently using knurling, stamping out with saw teeth or other in order to achieve particular esthetic effects which are easily visible in the assembled rope chain, and also so as to mask possible corner differentiations as are necessarily caused by the stamping out which leaves one corner with a tendency to rounding and another corner with a tendency to burr; this disadvantage is completely eliminated from the point of view of visibility by carrying out the shaping along the more visible edges 11A of the chain.
  • the edges 11A of the stamped-out elements 11 are visible in a helical progression of longitudinal segments which is formed by the chain illustrated as finished, while the transverse surfaces 11B of the front of the stamped-out element 11 come to be visible in the development of the helical channel of the formed chain, and since these transverse pieces 11B come to be arranged progressively inclined in relation to one another along a helical progression, the polish which is possible with the starting sheet material comes to give an effect of brightness and of reflection which is particularly valuable from the esthetic point of view and which is not easily obtainable on the filiform materials which have been used until now with the technique of preparation of said rope chain.
  • the stamped-out elements are particularly simple to obtain using the system of working according to the invention.
  • edges 11A can be envisaged, with zig-zag cuts, with cutting of concave lunettes, with cutting of convex or any other type of lunettes, in order to bring about particular effects which are also very marked and without having to intervene with further working which is sometimes limited because of the requirements of the starting material of the traditional technique.

Landscapes

  • Adornments (AREA)
  • Details Of Garments (AREA)
  • Sewing Machines And Sewing (AREA)
EP91830332A 1990-08-08 1991-07-25 Dekorative Kette, Kordelkette genannt, die man durch Verwendung "C"-förmiger Glieder, welche aus dünnem Blattmaterial gestanzt werden, erhält Withdrawn EP0470937A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT946190 1990-08-08
IT9461A IT1241766B (it) 1990-08-08 1990-08-08 Catena decorativa denominata catena corda, ottenuta con componenti a "c" tranciati da lamina

Publications (1)

Publication Number Publication Date
EP0470937A1 true EP0470937A1 (de) 1992-02-12

Family

ID=11130485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91830332A Withdrawn EP0470937A1 (de) 1990-08-08 1991-07-25 Dekorative Kette, Kordelkette genannt, die man durch Verwendung "C"-förmiger Glieder, welche aus dünnem Blattmaterial gestanzt werden, erhält

Country Status (2)

Country Link
EP (1) EP0470937A1 (de)
IT (1) IT1241766B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209306B1 (en) 1999-04-07 2001-04-03 Meang K. Chia Decorative jewelry rope chain
US6481196B1 (en) 1999-04-07 2002-11-19 Meang K. Chia Length of jewelry rope chain exhibiting distinctive visual properties, and related method of manufacture
US6513316B1 (en) 2001-04-20 2003-02-04 Tibor Schwartz Method and apparatus for faceting hollow and solid chains
US6532725B1 (en) 1999-04-07 2003-03-18 Meang K. Chia Ornamental jewelry rope chain link element
US6553751B2 (en) * 2001-02-08 2003-04-29 Eitan Weinberg Exterior shaped link and method
US6560955B1 (en) 1999-04-07 2003-05-13 Meang K. Chia Jewelry rope chain link element
USD487407S1 (en) 2000-01-31 2004-03-09 Meang Chia Length of decorative jewelry rope chain
WO2004062832A1 (en) * 2003-01-13 2004-07-29 Silmar S.P.A. A method for the production of chains for articles of jewellery
US7047721B2 (en) 1999-04-07 2006-05-23 Chia Meang K Jewelry rope chain link element and methods of manufacture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE235980C (de) *
GB1587500A (en) * 1978-05-25 1981-04-08 Howard & Irving Jewellery Ltd Articles of jewellery and their manufacture
WO1986004491A1 (fr) * 1985-01-31 1986-08-14 L'oromeccanica S.P.A. Ruban ornemental
GB2178941A (en) * 1985-08-15 1987-02-25 Oroamerica Inc Jewelry rope chain

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE235980C (de) *
GB1587500A (en) * 1978-05-25 1981-04-08 Howard & Irving Jewellery Ltd Articles of jewellery and their manufacture
WO1986004491A1 (fr) * 1985-01-31 1986-08-14 L'oromeccanica S.P.A. Ruban ornemental
GB2178941A (en) * 1985-08-15 1987-02-25 Oroamerica Inc Jewelry rope chain

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209306B1 (en) 1999-04-07 2001-04-03 Meang K. Chia Decorative jewelry rope chain
US6481196B1 (en) 1999-04-07 2002-11-19 Meang K. Chia Length of jewelry rope chain exhibiting distinctive visual properties, and related method of manufacture
US6532725B1 (en) 1999-04-07 2003-03-18 Meang K. Chia Ornamental jewelry rope chain link element
US6560955B1 (en) 1999-04-07 2003-05-13 Meang K. Chia Jewelry rope chain link element
US6829882B2 (en) 1999-04-07 2004-12-14 Meang K. Chia Ornamental jewelry rope chain link element
US7047721B2 (en) 1999-04-07 2006-05-23 Chia Meang K Jewelry rope chain link element and methods of manufacture
USD487407S1 (en) 2000-01-31 2004-03-09 Meang Chia Length of decorative jewelry rope chain
US6553751B2 (en) * 2001-02-08 2003-04-29 Eitan Weinberg Exterior shaped link and method
US6513316B1 (en) 2001-04-20 2003-02-04 Tibor Schwartz Method and apparatus for faceting hollow and solid chains
WO2004062832A1 (en) * 2003-01-13 2004-07-29 Silmar S.P.A. A method for the production of chains for articles of jewellery

Also Published As

Publication number Publication date
IT1241766B (it) 1994-02-01
IT9009461A1 (it) 1992-02-09
IT9009461A0 (it) 1990-08-08

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