EP0441138B1 - Chaîne ornementale - Google Patents

Chaîne ornementale Download PDF

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Publication number
EP0441138B1
EP0441138B1 EP91100489A EP91100489A EP0441138B1 EP 0441138 B1 EP0441138 B1 EP 0441138B1 EP 91100489 A EP91100489 A EP 91100489A EP 91100489 A EP91100489 A EP 91100489A EP 0441138 B1 EP0441138 B1 EP 0441138B1
Authority
EP
European Patent Office
Prior art keywords
metal
core
metal wire
strands
wire
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.)
Expired - Lifetime
Application number
EP91100489A
Other languages
German (de)
English (en)
Other versions
EP0441138A1 (fr
Inventor
Georg Bunz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0441138A1 publication Critical patent/EP0441138A1/fr
Application granted granted Critical
Publication of EP0441138B1 publication Critical patent/EP0441138B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/0053—Flexible straps
    • A44C5/0061—Flexible straps essentially made from metal

Definitions

  • the invention relates to a chain-shaped jewelry element with a core and at least one metal wire encircling this core or wire elements enclosing this core.
  • Such a decorative element is known from DE-GM 85 21 923 or EP-A-0 214 363 and FR-A-2 505 629.
  • the core consists of a plastic core, the main function of which is to provide the overall structure with the necessary strength and resilience that are no longer applied by the outer metal wire serving as the actual jewelry element with very small dimensions could be.
  • the plastic core has an outer diameter which essentially corresponds to the inner diameter of the outer wire spiral. This leads to the fact that a spiral-shaped contact area is created between the plastic core on the one hand and the wire spiral on the other. Especially with a strong bend of the jewelry element, this design in the contact area can lead to an irregular distribution of the outer metal wire over the length of the plastic core, because of the relatively high sliding friction due to the spiral contact line on the one hand and the relatively high frictional resistance of the plastic on the other.
  • the resulting uneven appearance affects the overall aesthetic impression of the jewelry element.
  • the core consists of several strands of stainless steel twisted against one another, which are wrapped closed by circumferential metal wires made of precious metal, in order to simulate a massive execution of the jewelry element made of a precious metal, and at the same time the required elasticity of the jewelry element to rent.
  • the object of the invention is to further develop the design of such a chain-shaped jewelry element in such a way that the “metal” holding the circulating metal wire as freely as possible is achieved by the core, that is to say that in particular the bending behavior of the circulating metal wire remains largely unaffected by the core running through on the inside, and that even in the case of very delicate chains, an aesthetically balanced appearance is guaranteed, in particular even in the case of strong turns.
  • this object is achieved in that essentially essentially punctiform contact surfaces are formed between each strand and the metal wire.
  • the spiral wire metal is then carried, so to speak, by a "multi-point bracket" from the continuous strands.
  • the strands are formed from an alloy of the material from which at least one circumferential metal wire is made.
  • the metal of the strands and the metal portion of the surrounding metal wire have the same noble metal content.
  • a jewelry chain provided with the features of the invention has a very high transparency as a result of this multi-point bearing in the sense that when the core is released by the surrounding metal wire, for example in the event of a sharp bend, due to the "free volume areas" between the strands on the one hand and the surrounding metal on the other hand, the core optically largely withdraws and is hardly noticed by the viewer.
  • 1 and 2 consists of a core of three parallel strands 11, 12 and 13 and a metal wire 10 surrounding this core in a spiral, which determines the optical appearance of the jewelry element.
  • the internal cross section of the metal wire 10 is substantially larger than the total cross section of the continuous strands 11, 12, 13, there are essentially point-shaped contact areas K between strands on the one hand and metal wire on the other hand, and free cross-sectional or volume areas V remain between the strands on the one hand and the metal wire on the other.
  • the exclusively point-shaped contact areas are responsible for the uniform flexibility of the jewelry element, especially if the strands are also made of metal.
  • the unoccupied volume areas V are decisive for the transparency of the jewelry chain if (as shown in Fig. 1 at A), for example in the area of strong bends or even with metal wires circulating at a distance from the start, the view of the strands passing through remains clear.
  • cores can also be produced that can be adapted to non-circular internal cross sections of metal spirals. Only the cross-sectional representation according to FIG. 3 is representative of this.
  • Chains according to the invention can in particular also be designed very delicately, for example the inner diameter of the metal spiral 10 in the exemplary embodiment according to FIGS. 1 and 2 can be at least 0.3 mm, the diameter of the strands of the core used can be at least 0.15 mm.
  • the decorative element is preferably designed such that the surrounding metal wire consists of a noble metal (for example platinum) and the core (strands) which absorbs the mechanical stresses is made of a correspondingly harder alloy of the same noble metal (for example a platinum? Alloy). If you then choose the same fineness for both the precious metal of the circulating wire and the precious metal content of the alloy of the strands, the entire decorative element can be treated uniformly under labeling law and continues to be a technically and aesthetically uniform solution.
  • a noble metal for example platinum

Landscapes

  • Adornments (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Claims (3)

  1. Chaîne ornementale, composée d'un coeur formé de deux cordons au moins en métal ou en alliage métallique (11, 12, 13), parallèles entre eux ou tordus l'un par rapport à l'autre, et d'un fil métallique au moins enroulé autour de ce coeur, caractérisée en ce que des surfaces de contact (K), essentiellement ponctuelles, sont exclusivement formées entre chaque cordon (11, 12, 13) et le fil métallique (10), la section interne du fil métallique (10) étant supérieure à la section totale des cordons continus (11, 12, 13).
  2. Chaîne ornementale suivant la revendication 1, caractérisée en ce que les cordons (11, 12, 13) sont formés d'un alliage du métal, dont se compose l'un des fils métalliques périphériques (10), du moins.
  3. Chaîne ornementale suivant la revendication 2, caractérisée en ce que le métal des cordons (11, 12, 13) et la part de métal du fil métallique périphérique (10) présentent le même titre.
EP91100489A 1990-02-08 1991-01-17 Chaîne ornementale Expired - Lifetime EP0441138B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4003790 1990-02-08
DE4003790A DE4003790A1 (de) 1990-02-08 1990-02-08 Kettenfoermiges schmuckelement
SG1195A SG1195G (en) 1990-02-08 1995-01-04 Ornamental chain

Publications (2)

Publication Number Publication Date
EP0441138A1 EP0441138A1 (fr) 1991-08-14
EP0441138B1 true EP0441138B1 (fr) 1994-06-01

Family

ID=25889879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100489A Expired - Lifetime EP0441138B1 (fr) 1990-02-08 1991-01-17 Chaîne ornementale

Country Status (8)

Country Link
EP (1) EP0441138B1 (fr)
JP (1) JPH0813282B2 (fr)
AT (1) ATE106204T1 (fr)
DE (2) DE4003790A1 (fr)
DK (1) DK0441138T3 (fr)
ES (1) ES2056498T3 (fr)
HK (1) HK46695A (fr)
SG (1) SG1195G (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9408040U1 (de) * 1994-05-14 1994-11-10 Haaga, Bernhard, 71229 Leonberg Schmuckkettenelement
DE29604224U1 (de) * 1996-03-06 1996-07-25 Gebr. Niessing GmbH & Co, 48691 Vreden Schmuckset zur Erstellung eines Halsschmuckes o.dgl.
JPH10208853A (ja) * 1996-11-19 1998-08-07 Ngk Spark Plug Co Ltd セラミックヒータ、およびその製造方法
IT1305067B1 (it) * 1998-12-29 2001-04-10 Target S R L Elemento ornamentale a sviluppo tubolare di impiego nel settore orafoe della bigiotteria, in particolare per la realizzazione di collane ed
DE20003333U1 (de) * 2000-02-24 2000-05-25 Schmidt, Markus, 40882 Ratingen Schmuckgegenstand
JP4072567B2 (ja) * 2000-04-05 2008-04-09 株式会社安藤製作所 装身具用ワイヤの製造方法
KR100414695B1 (ko) * 2001-02-22 2004-01-13 김영귀 와이어 외주면에 금속 띠가 권취되는 목걸이줄 제조장치

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2053673A5 (fr) * 1969-07-16 1971-04-16 Gay Freres
US3783081A (en) * 1969-07-24 1974-01-01 Filigree Arts Inc Ornamental element
BE764149A (fr) * 1970-03-18 1971-08-02 Pirelli Procede de fabrication de cordes metalliques particulierement appropriees aux structures de renforcement pour pneumatiques
JPS5029981A (fr) * 1973-07-16 1975-03-26
US3996733A (en) * 1976-01-27 1976-12-14 Uniroyal Inc. Reinforcing cord construction
JPS597812B2 (ja) * 1976-09-07 1984-02-21 村田機械株式会社 被覆複合糸並びにその製造方法及び製造装置
FR2505629A1 (fr) * 1981-05-18 1982-11-19 Lasbleiz Fournier Vitiello Bijou et son procede de fabrication
IT1212497B (it) * 1981-05-28 1989-11-22 Vieri Spa Procedimento per la realizzazione di oggetti ornamentali, mediante avvolgimento a spirale di una catena flessibile su di un'anima metallica.
JPS5823931A (ja) * 1981-07-28 1983-02-12 アラン・ワツサ−マン 高デニ−ルノンプライドヤ−ンおよびその製造法
GB2161695B (en) * 1984-07-21 1987-07-01 Shikiseimitsu Kabushikikaisha Metal wristwatch strap
WO1988004146A1 (fr) * 1986-12-03 1988-06-16 Braeuer Dieter Paul Fils retors et feuillards a usage ornemental
DE8521923U1 (de) * 1985-07-30 1985-09-19 Gebr. Niessing, 4426 Vreden Schmuckelement
DE8604726U1 (de) * 1986-02-21 1986-04-10 Fa. Dr. Alex Wellendorff Gmbh & Co, 7530 Pforzheim Schmuckkette, vorzugsweise aus Edelmetalldraht

Also Published As

Publication number Publication date
DE4003790C2 (fr) 1992-01-02
ATE106204T1 (de) 1994-06-15
DE59101737D1 (de) 1994-07-07
DE4003790A1 (de) 1991-08-22
ES2056498T3 (es) 1994-10-01
DK0441138T3 (da) 1994-09-05
JPH0813282B2 (ja) 1996-02-14
SG1195G (en) 1995-06-16
HK46695A (en) 1995-04-07
JPH0678816A (ja) 1994-03-22
EP0441138A1 (fr) 1991-08-14

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