EP1869991A1 - Objet d'ornement en verre - Google Patents

Objet d'ornement en verre Download PDF

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Publication number
EP1869991A1
EP1869991A1 EP07006809A EP07006809A EP1869991A1 EP 1869991 A1 EP1869991 A1 EP 1869991A1 EP 07006809 A EP07006809 A EP 07006809A EP 07006809 A EP07006809 A EP 07006809A EP 1869991 A1 EP1869991 A1 EP 1869991A1
Authority
EP
European Patent Office
Prior art keywords
facet
glass
guide curve
convexly
curve
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
EP07006809A
Other languages
German (de)
English (en)
Other versions
EP1869991B1 (fr
Inventor
Georg Fasching
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.)
D Swarovski KG
Original Assignee
D Swarovski KG
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 D Swarovski KG filed Critical D Swarovski KG
Publication of EP1869991A1 publication Critical patent/EP1869991A1/fr
Application granted granted Critical
Publication of EP1869991B1 publication Critical patent/EP1869991B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/001—Faceting gems
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/007—Special types of gems
    • A44C17/008—Glass stones

Definitions

  • the invention relates to a decorative item of glass, with a ground faceted surface, which approximates a natural form, in particular the form of animals or plants.
  • Decorative objects made of glass through which natural forms are to be reproduced, are currently produced according to two fundamentally different systems. Either you try to get as close as possible to the natural shape or you create irregular polyhedra, ie bodies with flat facets. The latter means a substantial renunciation of fidelity, but brings on the other hand by the sudden change of the normal direction at the edges delimiting the facets interesting optical effects.
  • both forms of representation can be combined, for example, by bonding the body of a swan composed of a plurality of ground stones to a near-natural shape of a gooseneck made of pressed glass.
  • an approach to a realistic shaping while substantially preserving the optical crystal effect can be achieved by providing that at least one facet has convexly and concavely curved regions.
  • the facets themselves are curved, the radius of curvature being substantially greater than that of also strongly rounded edges.
  • the facets according to the invention will be formed as part of a lateral surface of a straight cylinder with a variable curvature guide curve, the grinding roller in the manufacturing process relative to the object to be produced, ie move up and down and back and forth. Subsequently, it will be shown that one can superimpose these two movements also a rotation of the grinding roller and the associated facet.
  • Figs. 1 to 3 show a mouse and Fig. 2 shows a pear.
  • both ornaments are provided with strip-shaped facets 1, which each represent parts of the lateral surfaces of generalized straight cylinders.
  • the convex and concave curved portions 5, 6 of the facets 1 are each the result of the distance or approach of the circumference of a grinding roller to the blank when the grinding roller moves along a Leitkurze 2 during the manufacturing process.
  • the guide curves 2 separating contiguous facets 1 are plane curves.
  • FIG. 3 shows that the generating straight line 3 of a facet 1 can rotate about the axis 4 of the blank during its movement along a guide curve 2. This creates a sinuous surface that allows a closer approach to natural shapes.

Landscapes

  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Surface Treatment Of Glass (AREA)
EP07006809A 2006-06-23 2007-04-02 Objet d'ornement en verre Active EP1869991B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0048606U AT9180U1 (de) 2006-06-23 2006-06-23 Ziergegenstand aus glas

Publications (2)

Publication Number Publication Date
EP1869991A1 true EP1869991A1 (fr) 2007-12-26
EP1869991B1 EP1869991B1 (fr) 2012-06-06

Family

ID=37943682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07006809A Active EP1869991B1 (fr) 2006-06-23 2007-04-02 Objet d'ornement en verre

Country Status (2)

Country Link
EP (1) EP1869991B1 (fr)
AT (1) AT9180U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3090644A1 (fr) 2015-05-07 2016-11-09 D. Swarovski KG Élément de joaillerie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT316906B (de) * 1970-08-18 1974-08-12 Swarovski & Co Facetten aufweisender Schmuckstein
US5044123A (en) * 1990-03-22 1991-09-03 Douglas Hoffman Concave-convex faceting method and apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT316906B (de) * 1970-08-18 1974-08-12 Swarovski & Co Facetten aufweisender Schmuckstein
US5044123A (en) * 1990-03-22 1991-09-03 Douglas Hoffman Concave-convex faceting method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3090644A1 (fr) 2015-05-07 2016-11-09 D. Swarovski KG Élément de joaillerie

Also Published As

Publication number Publication date
AT9180U1 (de) 2007-06-15
EP1869991B1 (fr) 2012-06-06

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