EP0143917B1 - Lampe à incandescence à double culot - Google Patents

Lampe à incandescence à double culot Download PDF

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Publication number
EP0143917B1
EP0143917B1 EP84110667A EP84110667A EP0143917B1 EP 0143917 B1 EP0143917 B1 EP 0143917B1 EP 84110667 A EP84110667 A EP 84110667A EP 84110667 A EP84110667 A EP 84110667A EP 0143917 B1 EP0143917 B1 EP 0143917B1
Authority
EP
European Patent Office
Prior art keywords
bulb
incandescent lamp
holders
bosses
section
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
EP84110667A
Other languages
German (de)
English (en)
Other versions
EP0143917A3 (en
EP0143917A2 (fr
Inventor
Dieter Blumberg
Dierk Dr. Weis
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0143917A2 publication Critical patent/EP0143917A2/fr
Publication of EP0143917A3 publication Critical patent/EP0143917A3/de
Application granted granted Critical
Publication of EP0143917B1 publication Critical patent/EP0143917B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp

Definitions

  • the invention relates to an electric incandescent lamp, in particular a halogen incandescent lamp, with a tubular bulb made of high-melting glass, for example quartz glass, the ends of which are closed by crushing, and with a coiled filament which is held in the axis of the bulb by one or more tungsten wire holders , wherein the holder consist of a coiled section with a smaller diameter, which surrounds the filament, and a coiled section with a larger diameter, which bears against the inside of the bulb.
  • the holders serve as supports for the elongated filament and fix the latter in the axis of the lamp. During manufacture, however, there are tolerances in the inner diameter for the tubular piston, so that the holders usually do not lie firmly against the inner wall of the piston. This can damage or break the filament if the lamp is shaken.
  • DE-OS 2 420 342 describes an incandescent lamp in which the filament holder is fixed to the inner wall of the bulb by means of grooves in accordance with the helical shape of the outer holder sections.
  • the grooves are created by heating the bulb of the lamp in the area of the holder and then pressing the windings into the softened bulb wall due to their spring force.
  • the invention has for its object to provide a simple device for fixing the filament holder.
  • the electric incandescent lamp with the features mentioned in the preamble of the main claim is characterized according to the invention in that the individual holders are fixed by knobs between two turns of the holder section abutting the piston, the knobs consisting of local, radially inwardly projecting deformations of the piston wall.
  • knobs attached to the inside of the piston on one side they must have relatively large dimensions in order to bridge the tolerances in the inside pipe diameter. In some cases, this can have the disadvantage that the luminous element is moved slightly out of the axis of the bulb, and this results in unfavorable operating properties.
  • the knobs are only attached to the bulb after the lamp with the holders attached to it is inserted into the bulb. Therefore, if the section of the holder resting against the inner wall of the piston only consists of two closely spaced turns, the holder can tip over when the knobs are attached.
  • the part of the holder which lies on the inner wall of the vessel consists of two approximately ring-shaped turns of a small pitch, which are connected to one another by a piece of wire of a larger pitch.
  • the knobs then engage between the approximately ring-shaped turns and thus prevent tipping over.
  • the two holders 8 for the luminous element 3 at a distance of approximately 12 mm also consist of tungsten wire with a wire diameter of 261 ⁇ m.
  • coiled sections 9 consist of a coiled section 9 with two turns of smaller diameter - shown here only schematically - and a coiled section 10 with two ring-shaped turns with a small pitch and an outer diameter of 6.2 mm, which are connected with a piece of wire with a larger pitch .
  • the knobs 11 engage between the annular windings of a slight slope of the section 10 and thus fix the luminous element 3 in the tubular bulb 2.
  • the halogen incandescent lamp has a luminous flux of 16 Im / W with excellent color rendering when operated at 220 to 230 V AC.

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  • Resistance Heating (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (4)

1. Lampe électrique à incandescence (1), notamment une lampe à halogène, qui comporte une ampoule (2) tubulaire en verre dur, par exemple en verre quartzeux, dont les extrémités sont fermées par des pincements (4, 5), et un filament boudiné (3) qui est maintenu dans l'axe de l'ampoule (2) au moyen d'un ou de plusieurs supports (8) en fil de tungstène, les supports étant constitués d'un tronçon hélicoïdal (9) de faible diamètre qui entoure le filament, et d'un tronçon hélicoïdal (10) de grand diamètre qui s'appuie sur l'intérieur de l'ampoule (2), caractérisée en ce que chaque support (8) est fixé au moyen de ressauts (11) entre deux spires du tronçon de support (10) s'appuyant sur l'ampoule, les ressauts étant constitués de déformations locales de la paroi de l'ampoule, qui s'étendent radialement vers l'intérieur.
2. Lampe électrique à incandescence (1) selon la revendication 1, caractérisée en ce que la fixation de chaque support (8) du filament à l'intérieur de la paroi de l'ampoule, s'effectue au moyen de deux ressauts (11) qui se font face diamétralement.
3. Lampe électrique à incandescence selon la revendication 1, caractérisée en ce que la fixation de chaque support du filament s'effectue au moyen d'un ressaut, les ressauts destinés à des supports voisins se faisant face diamétralement.
4. Lampe électrique à incandescence (1) selon l'une ou plusieurs des revendications 1 à 3, caractérisée en ce que le tronçon (10) du support (8), qui s'appuie sur la paroi intérieure de l'enveloppe, se compose de deux spires, de forme à peu près annulaire, faiblement inclinées, qui sont reliées entre elles par un tronçon de fil fortement incliné, et que les ressauts (11) s'engagent entre les spires de forme à peu près annulaire.
EP84110667A 1983-09-07 1984-09-07 Lampe à incandescence à double culot Expired EP0143917B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838325715U DE8325715U1 (de) 1983-09-07 1983-09-07 Zweiseitig gesockelte gluehlampe
DE8325715U 1983-09-07

Publications (3)

Publication Number Publication Date
EP0143917A2 EP0143917A2 (fr) 1985-06-12
EP0143917A3 EP0143917A3 (en) 1986-01-08
EP0143917B1 true EP0143917B1 (fr) 1988-05-18

Family

ID=6756843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110667A Expired EP0143917B1 (fr) 1983-09-07 1984-09-07 Lampe à incandescence à double culot

Country Status (2)

Country Link
EP (1) EP0143917B1 (fr)
DE (2) DE8325715U1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2705013B2 (ja) * 1988-12-21 1998-01-26 ウシオ電機株式会社 ハロゲン白熱電球
JPH076614Y2 (ja) * 1989-03-17 1995-02-15 ウシオ電機株式会社 管型白熱電球
DE4008365A1 (de) * 1990-03-15 1991-09-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Zweiseitig gequetschte halogengluehlampe
EP0446461B1 (fr) * 1990-03-15 1995-07-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence à halogène munie d'un pincement unique
US5146134A (en) * 1990-03-15 1992-09-08 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. Halogen incandescent lamp, particularly for operation from power networks, and method of its manufacture
US5367220A (en) * 1990-03-15 1994-11-22 Patent-Treuhand-Gesellschaft fur Elektrische Gluhiampen mbH Electric lamp with a holding frame for a lamp filament
EP0616359B1 (fr) * 1993-03-19 1996-07-03 Koninklijke Philips Electronics N.V. Lampe électrique à incandescence
DE19528686A1 (de) * 1995-08-03 1997-02-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogenglühlampe
DE29612757U1 (de) * 1996-07-24 1997-11-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig verschlossene elektrische Glühlampe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB856539A (en) * 1958-09-04 1960-12-21 Gen Electric Co Ltd Improvements in or relating to devices for producing light or infra-red radiation
US3160777A (en) * 1962-10-22 1964-12-08 Gen Electric Filament and reflector support for an elongated tube
DE2420342A1 (de) * 1974-04-26 1975-11-06 Patra Patent Treuhand Halogengluehlampe und verfahren zur herstellung

Also Published As

Publication number Publication date
EP0143917A3 (en) 1986-01-08
DE3471403D1 (en) 1988-06-23
DE8325715U1 (de) 1985-02-21
EP0143917A2 (fr) 1985-06-12

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