EP0158818B1 - Kuppeln oder Deckel aus plastischem Material für Kronleuchter und andere Leuchtvorrichtungen - Google Patents

Kuppeln oder Deckel aus plastischem Material für Kronleuchter und andere Leuchtvorrichtungen Download PDF

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Publication number
EP0158818B1
EP0158818B1 EP85102731A EP85102731A EP0158818B1 EP 0158818 B1 EP0158818 B1 EP 0158818B1 EP 85102731 A EP85102731 A EP 85102731A EP 85102731 A EP85102731 A EP 85102731A EP 0158818 B1 EP0158818 B1 EP 0158818B1
Authority
EP
European Patent Office
Prior art keywords
coloured
layers
cupolas
domes
differentiated
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
Application number
EP85102731A
Other languages
English (en)
French (fr)
Other versions
EP0158818A1 (de
Inventor
Michele Moro
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.)
Promet Sas Di Moro Michele & C
Original Assignee
Promet Sas Di Moro Michele & C
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 Promet Sas Di Moro Michele & C filed Critical Promet Sas Di Moro Michele & C
Priority to AT85102731T priority Critical patent/ATE47477T1/de
Publication of EP0158818A1 publication Critical patent/EP0158818A1/de
Application granted granted Critical
Publication of EP0158818B1 publication Critical patent/EP0158818B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/26—Manufacturing shades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • F21V1/16—Covers for frames; Frameless shades characterised by the material
    • F21V1/22—Covers for frames; Frameless shades characterised by the material the material being plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00

Definitions

  • This invention refers to plastic cupolas, or domes for chandeliers and other illumination means and to the procedure for their production.
  • the dome, or cupola encloses, or at least protects the source, or the sources of light, generally one, or more electric incandescent, or gas discharge bulbs.
  • the selective mechanical removal of at least part of the coloured layer exclusively allows a chromatic effect to be obtained resulting from the transparency of the internal layer. This effect is due to the resulting optics of only the two overlying layers, only one of which is transparent as mentioned.
  • the procedure for the production of such domes, or cupolas includes: the formation of multiple sheet material, made up of two layers, as specified above; the selective, mechanical removal of a part of the coloured layer: the heat- forming of the double sheet, generally by heating and around suitable moulds, to obtain the desired three-dimensional shape and the polishing of the dome, or cupola obtained.
  • a suitable dome, or cupola is obtained as a lighting means having one, or more stripes, or equivalent markings which give the lighting fixture a chromatic "pattern" defined exclusively by a single colour.
  • DE-A-2505183 discloses a plastic dome for lamps and other lighting means made up of stratified material and having a chromatic effect, wherein the stratified material consists of at least three adjacent layers of which at least one is transparent and at least two are coloured with differentiated colours and the chromatic effect is obtained by partial, selective and differentiated superposition of a part of the coloured layers.
  • the object of this invention is to provide cupolas, or domes suitable as lighting means, having numerous patterns with different colourings and chromatic effects and combined and integrated in various ways.
  • this object is achieved by using a multiple stratified sheet material exclusively consisting of translucent layers of which at least one is transparent and at least two are coloured with differentiated colours and the patterns are obtained by partial, selective and differentiated removal of at least a part of at least one of the coloured but translucent layers, the chromatic effect being obtained by the combination of the colours in contrast with the colours resulting from those parts where partial or complete areas are removed.
  • the cupola, or dome of the present invention is characterised by being made up at least three adjacent translucent layers of polymeric material, such as polymetacrylate, of which at least one is transparent and at least two are coloured with differentiated colours and having a pattern of variously shaped geometry obtained by the partial and differentiated removal of a part of at least one of the coloured but translucent layers.
  • the product obtained according to this invention is characterised by being made up of a stratified layer, preferably of metacrylate, including at least three adjacent translucent layers, of which at least one is transparent and at least two are coloured, made to adhere to one another using known systems and/or means, such as adhesives, heat treatments and so forth.
  • the said sheet may be formed, using known systems, such as by heat and on coherent moulds and/or counter-moulds to realise a "cupola", or "dome” of three-dimensional geometry, corresponding to the various architectonic and environmental requirements and conveniences.
  • the coloured layers are produced using coloured materials according to known techniques, in the plastic mass, or by surface application of colourants, an application that may be preceded by mordanting, or other known treatment that guarantees the stability of the colouring.
  • These layers have different thicknesses, and the said thickness is greatest in correspondence to the innermost layer of the hollow body, which materialises the said cupola, or dome, a layer which is preferably transparent. All the coloured layers, except for the innermost layer of Figure 1;
  • Figure 3 represents the schematic front view of the multiple sheet of Figure 1 with a pattern simplified by concentric rings obtained by the selective removal of part of the overlying layers;
  • Figure 4 represents the schematic side view of Figure 3 and Figure 5 represents the perspective view and part section of a cupola, or dome obtained using the multiple sheet of Figure 3.
  • the starting sheet material is a multiple sheet (10) of polymeric material as for example polymetacrylate, produced by stratification.
  • This said multiple sheet 10 exclusively consisting of translucent layers, includes a transparent sheet 12 associated with several sheets 14, 16 and 18 each one of which is coloured differently from the others.
  • the other said sheets 14, 16 and 18 are processed mechanically so as to selectively remove portions of them according to a predetermined pattern which for the sake of simplicity is illustrated with concentric circles in the Figures.
  • this pattern could have a different geometry, straight line, curved line, or otherwise for example with dashed lines, are processed at least by partial removal, preferably using a mechanical process.
  • the chromatic effect is further integrated by the pattern and/or by the geometry of the outlines of at least part of the adjacent layers.
  • the structure in itself is prevailently formed by the layer of transparent material, which constitutes the main load bearing and stress resistant element.
  • the dome, or cupola obtained according to this invention may be associated with load bearing parts, such as a rod, an arm, one, or more small columns or other means.
  • patterns of a different geometry can be obtained by varying the parts removed from each coloured sheet, as well as the number of overlaid coloured sheets.
  • the product 20 may be obtained by any known technique as, for example, by heat and on coherent moulds and/or countermoulds.
  • the three dimensional shape of the product 20 obviously may be different from the example, depending on the various architectonic and environmental requirements and conveniences.
  • the product 20 may be supported by any known means, such as for example, a central rod, an arm, or a crown of small load bearing columns or another arrangement.
  • the selective removal of the material, necessary to obtain the desired architectonic pattern made be made using any known means, for example mechanically.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Claims (3)

1. Kunststofflaternen oder Kuppeln (20) für Leuchter und andere Beleuchtungsvorrichtungen aus einem geschichteten Material (10) und mit einem Farbeneffekt, wobei das obengenannte geschichtete Material aus mindestens drei angrenzenden Schichten (12, 14, 16, 18) besteht, von denen wenigstens eine (12) transparent ist und wenigstens zwei (14,16,18) in verschiedenen Farben gefärbt sind, und der Farbeneffekt wird durch teilweise, selektive und unterschiedliche Überlagerung eines Teils der gefärbten Schichten erzielt, gekennzeichnet dadurch, daß das geschichtete Material ausschließlich aus durchschneinenden Schichten besteht, von denen wenigstens eine (12) transparent ist und mindestens zwei (14, 16, 18) in verschiedenen Farben gefärbt sind, und die Muster werden durch teilweise, selektive und unterschiedliche Entfernung von wenigstens einem Teil (22,24,26) von mindestens einer der gefärbten, jedoch durchscheinenden Schichten (14, 16, 18) erreicht; der Farbeneffekt wird durch die Kombination der Farben im Kontrast zu den Farben erzielt, die sich von den Teilen ergeben, wo Teilflächen oder ganze Flächen entfernt werden.
2. Laternen oder Kuppeln gemäß Patentanspruch 1, wobei die angrenzenden Flächen vier sind, eine von ihnen ist transparent und die anderen drei sind in verschiedenen Farben durchscheinend gefärbt.
3. Laternen oder Kuppeln gemäß Patentanspruch 1 oder 2, wobei die entfernten Teile ringförmige Flächen und die sich ergebenden Muster koaxiale Ringe sind.
EP85102731A 1984-03-28 1985-03-10 Kuppeln oder Deckel aus plastischem Material für Kronleuchter und andere Leuchtvorrichtungen Expired EP0158818B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102731T ATE47477T1 (de) 1984-03-28 1985-03-10 Kuppeln oder deckel aus plastischem material fuer kronleuchter und andere leuchtvorrichtungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8420265A IT1206718B (it) 1984-03-28 1984-03-28 Procedimento per la produzione industriale di lampadari ed equivalenti mezzi di illuminazione, da soffitto, da tavolo, a braccio, plafoniere od altro, con cupola o cappello, in materiale polimerico, quale il metacrilato od altro e manufatti ottenibili con il detto procedimento.
IT2026584 1984-03-28

Publications (2)

Publication Number Publication Date
EP0158818A1 EP0158818A1 (de) 1985-10-23
EP0158818B1 true EP0158818B1 (de) 1989-10-18

Family

ID=11165263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102731A Expired EP0158818B1 (de) 1984-03-28 1985-03-10 Kuppeln oder Deckel aus plastischem Material für Kronleuchter und andere Leuchtvorrichtungen

Country Status (4)

Country Link
EP (1) EP0158818B1 (de)
AT (1) ATE47477T1 (de)
DE (1) DE3508589A1 (de)
IT (1) IT1206718B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600754B1 (fr) * 1986-06-30 1990-07-20 Mille Jacques Produit pour la reparation, l'entretien ou le masquage des lanternes des vehicules
USD328800S (en) 1990-10-26 1992-08-18 American Tack & Hardware Co., Inc. Shade for a night-light or similar article
DE10004981C2 (de) * 2000-02-04 2003-06-18 Angelo Van Tol Lampenschirm aus Acryl

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390462A (en) * 1972-05-04 1975-04-16 Bercher Sa Decorative stratified panels and similar objects
DE2505183A1 (de) * 1975-02-07 1976-08-19 Schneider & Kern Ornamentales, etwa plattenfoermiges gebilde

Also Published As

Publication number Publication date
ATE47477T1 (de) 1989-11-15
IT8420265A0 (it) 1984-03-28
IT1206718B (it) 1989-05-03
EP0158818A1 (de) 1985-10-23
DE3508589A1 (de) 1985-10-03

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