EP0910867A1 - Method for manufacturing an electric light bulb - Google Patents

Method for manufacturing an electric light bulb

Info

Publication number
EP0910867A1
EP0910867A1 EP98910595A EP98910595A EP0910867A1 EP 0910867 A1 EP0910867 A1 EP 0910867A1 EP 98910595 A EP98910595 A EP 98910595A EP 98910595 A EP98910595 A EP 98910595A EP 0910867 A1 EP0910867 A1 EP 0910867A1
Authority
EP
European Patent Office
Prior art keywords
filament
notch
cap
dazzle device
light bulb
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
EP98910595A
Other languages
German (de)
French (fr)
Other versions
EP0910867B1 (en
Inventor
Roland Rittner
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 EP0910867A1 publication Critical patent/EP0910867A1/en
Application granted granted Critical
Publication of EP0910867B1 publication Critical patent/EP0910867B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/06—Attaching of incandescent bodies to mount
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies

Definitions

  • the invention relates to a method for producing an electric light bulb according to the preamble of patent claim 1.
  • German patent DE 2243 717 Such a manufacturing method is disclosed, for example, in German patent DE 2243 717.
  • This patent describes a two-filament halogen incandescent lamp with a dimming cap and an incandescent filament arranged in the dimming cap.
  • the anti-glare cap has a welding tab with a cross rib.
  • the filament ends are each wrapped in a metal foil.
  • the filament is fixed to the anti-glare cap here by one of the filament ends enclosed by the metal foil being fixed to the cross rib by spot welding.
  • the manufacturing method according to the invention enables a glow filament end to be more easily attached to the anti-dazzle device, because at least one of the metal foils surrounding the filament ends can now be saved.
  • the fusion of the filament end according to the invention in a notch at the edge of the anti-dazzle device can be carried out both for uncoiled and for coiled filament ends.
  • the material of the anti-dazzle device is advantageously melted on both sides of the notch. This ensures complete embedding of the filament end in the re-solidified melt of the anti-glare cap.
  • the anti-dazzle device is advantageously formed from a metal sheet so that it can serve as an electrical power supply for the filament connected to the anti-dazzle device.
  • the notch on the edge of the anti-dazzle device is made by two adjacent, protrusions formed by the anti-dazzle device which have a V-shaped or U-shaped space. These two exposed protrusions can be heated and melted with comparatively little energy using a LASER.
  • the production method according to the invention is particularly suitable for the production of two-filament halogen incandescent lamps which are used as light sources in motor vehicle headlights.
  • FIG. 1 shows an incandescent filament frame produced by the method according to the invention for a two-filament halogen incandescent lamp with two incandescent filaments, a dimming cap and the associated power supply lines,
  • Figure 2 shows a dimming cap provided for the manufacturing method according to the invention
  • Figure 3 is a two-filament halogen lamp according to the prior art
  • the manufacturing method according to the invention will be explained below with the aid of a two-filament halogen incandescent lamp, a so-called H4 lamp.
  • the structure of the H4 lamp is shown schematically in FIG. 3.
  • the two-filament halogen incandescent lamp shown in FIG. 3 has a lamp bulb 1 made of tempered glass that is squeezed tightly on one side.
  • the QLietsch seal 10 of the lamp bulb 1 is fixed in a cup-like holder part 2 made of stainless steel.
  • the holder part 2 forms together with the base sleeve 3 and the adjustment plate 4 formed thereon and with the base stone 5 the lamp base.
  • the holder part 2 is welded to the adjustment plate 4 by means of welding lugs 13 punched out of the adjustment plate 4 and bent upwards.
  • One of the filaments 6 is provided with a dimming cap 12.
  • a trough-like anti-dazzle device 20 is provided which is prefabricated from a metal sheet, preferably molybdenum sheet (FIG. 2).
  • This anti-dazzle device 20 has at its edge two adjacent, tooth-like protruding projections 21, 22, which together form an intermediate space designed as a V-shaped or U-shaped notch 23.
  • the anti-dazzle device 20 also has a welding lug 25 provided with a transverse rib 24.
  • the bottom of the anti-dazzle device 20 is equipped with two humps 27.
  • two prefabricated incandescent filaments 30, 31 and three molybdenum lead wires 33, 34, 35 fixed between two quartz bars 32 are provided for the production method according to the invention.
  • the power supply wire 35 is welded on the outside of the anti-dazzle device 20 to the two bosses 27 arranged in the bottom 26 of the anti-dazzle device 20.
  • the ends 30a, 30b of the low-beam filament 30 are each wrapped with a molybdenum foil 36 and spot-welded to the transverse rib 24 on the welding flag 25 of the anti-glare cap 20 or to one end of the power supply wire 33, so that the glow filament 30 is arranged in the anti-glare cap 20 .
  • one end 31a of the high-beam filament 31 is inserted into the notch 23 formed by the tooth-like projections 21, 22 and then the two projections 21, 22 are each simultaneously heated and melted with the aid of a LASER beam acting briefly on the two projections 21, 22, so that the helix 31a is wetted by the melt and is completely enclosed.
  • the end 31a of the high-beam filament 31 is completely embedded in the solidified material 20a of the anti-dazzle device 20.
  • the re-solidified material 20a then forms the shading nose 20a of the anti-dazzle device 20.
  • the other end 31b of the high-beam filament 31 is wrapped with a molybdenum foil 36 and spot-welded to the power supply wire 34.
  • the resulting incandescent filament frame with anti-dazzle device is shown in FIG. 1.
  • This complete helical frame is introduced and assembled in the prefabricated lamp bulb 1 in a known manner. The closing of the lamp bulb 1 by means of the pinch seal 10 and the base of the lamp are also state of the art and will therefore not be described further here.
  • the invention is not limited to the exemplary embodiment explained in more detail.
  • the filament end 30a of the low beam filament 30 welded to the transverse rib 24 can also be fused to the edge of the dimming cap 20 in the same way as the end 31a of the high beam filament 31.
  • the application of the fusion of the filament end and anti-dazzle cap according to the invention is not restricted to two-filament halogen incandescent lamps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Resistance Heating (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to a method for manufacturing an electric light bulb containing at least one spiral-wound filament (31) and a dimmer cap (20). According to the invention, one end (31a) of a spiral-wound filament (31) is threaded in a notch (23) on the rim of the dimmer cap (20) and melted on to the dimmer cap (20). This is done by melting the material of the dimmer cap (20) in the area of the notch (23) so that the molten elements wet the spiral-wound filament (31a) arranged in the notch (23) and the spiral-wound filament (31) is embedded in the solidified material (20a) of the dimmer cap (20)after the molten elements have hardened.

Description

Verfahren zur Herstellung einer elektrischen GlühlampeMethod of making an electric light bulb
Die Erfindung betrifft ein Verfahren zur Herstellung einer elektrischen Glühlampe gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for producing an electric light bulb according to the preamble of patent claim 1.
I. Stand der TechnikI. State of the art
Ein derartiges Herstellungsverfahren ist beispielsweise in der deutschen Patentschrift DE 2243 717 offenbart. Diese Patentschrift beschreibt eine Zweifaden-Halogenglühlampe mit einer Abblendkappe und einer in der Abblendkappe angeordneten Glühwendel. Die Abblendkappe besitzt eine mit einer Querrippe versehene Schweißfahne. Die Glühwendelenden sind jeweils von einer Metallfolie umwickelt. Die Fixierung der Glühwendel an der Abblendkappe erfolgt hier, indem eines der von der Metallfolie um- schlossenen Wendelenden durch eine Punktschweißung an der Querrippe befestigt ist.Such a manufacturing method is disclosed, for example, in German patent DE 2243 717. This patent describes a two-filament halogen incandescent lamp with a dimming cap and an incandescent filament arranged in the dimming cap. The anti-glare cap has a welding tab with a cross rib. The filament ends are each wrapped in a metal foil. The filament is fixed to the anti-glare cap here by one of the filament ends enclosed by the metal foil being fixed to the cross rib by spot welding.
II. Darstellung der ErfindungII. Presentation of the invention
Es ist die Aufgabe der Erfindung, ein Verfahren zur Herstellung einer mit einer Abblendkappe und mindestens einer Glühwendel ausgestatteten elektrischen Glühlampe bereitzustellen, das eine einfachere Befestigung eines Glühwendelendes an der Abblendkappe ermöglicht.It is the object of the invention to provide a method for producing an electric incandescent lamp equipped with a dimming cap and at least one incandescent filament, which enables a filament end to be more easily attached to the dimming cap.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen beschrieben. Das erfindungsgemäße Herstellungsverfahren für eine mit wenigstens einer Glühwendel und einer Abblendkappe versehenen elektrischen Glühlampe zeichnet sich dadurch aus, daß es die folgenden Fertigungsschritte aufweist:This object is achieved by the characterizing features of claim 1. Particularly advantageous embodiments of the invention are described in the subclaims. The manufacturing method according to the invention for an electric incandescent lamp provided with at least one filament and a dimming cap is characterized in that it has the following manufacturing steps:
- Bereitstellen einer Abblendkappe, deren Rand mit einer Kerbe versehen ist,Provision of a dimming cap, the edge of which is provided with a notch,
- Bereitstellen einer Glühwendel,- providing a filament,
- Einfädeln eines Glühwendelendes in die Kerbe- Threading a filament end into the notch
- Verschmelzen der Abblendkappe mit dem in der Kerbe angeordneten Glühwendelende, indem das Material der Abblendkappe im Bereich der Kerbe zum Schmelzen gebracht wird, so daß die Schmelze das in der Kerbe angeordnete Glühwendelende benetzt und das Glühwendelende nach dem Erstarren der Schmelze in dem wieder erstarrten Material der Abblendkappe eingebettet ist.- Melting the anti-dazzle device with the filament end arranged in the notch, by melting the material of the dimming cap in the area of the notch, so that the melt wets the filament end arranged in the notch and the end of the filament after the melt solidifies in the re-solidified material the anti-dazzle device is embedded.
Das erfindungsgemäße Herstellungsverfahren ermöglicht im Vergleich zum Stand der Technik eine einfachere Befestigung eines Glühwendelendes an der Abblendkappe, weil nun zumindest eine der die Wendelenden umschließenden Metallfolien eingespart werden kann. Die erfindungsgemäße Verschmelzung des Glühwendelendes in einer Kerbe am Rand der Abblendkappe läßt sich sowohl für ungewendelte als auch für gewendelte Glühwendelenden durchführen. Zum Verschmelzen der Abblendkappe mit dem in der Kerbe am Abblendkappenrand eingefädelten Glühwendelende wird das Material der Abblendkappe vorteilhafterweise auf beiden Seiten der Kerbe zum Schmelzen gebracht. Dadurch wird eine vollständige Einbettung des Glühwendelendes in der wiedererstarrten Schmelze der Abblend- kappe gewährleistet. Die Abblendkappe ist vorteilhafterweise aus einem Metallblech geformt, so daß sie als elektrische Stromzuführung für die mit der Abblendkappe verbundenen Glühwendel dienen kann. Vorteilhafterweise wird die Kerbe am Rand der Abblendkappe von zwei benachbarten, von der Abblendkappe hervorstehenden Vorsprüngen gebildet, die einen V- förmigen oder U-förmigen Zwischenraum besitzen. Diese beiden exponierten Vorsprünge können mit vergleichsweise geringem Energieaufwand mit Hilfe eines LASER's erhitzt und geschmolzen werden. Das erfindungsgemä- ße Herstellungsverfahren eignet sich insbesondere zur Fertigung von Zwei- faden-Halogenglühlampen, die in Kraftfahrzeugscheinwerfern als Lichtquelle verwendet werden.In comparison to the prior art, the manufacturing method according to the invention enables a glow filament end to be more easily attached to the anti-dazzle device, because at least one of the metal foils surrounding the filament ends can now be saved. The fusion of the filament end according to the invention in a notch at the edge of the anti-dazzle device can be carried out both for uncoiled and for coiled filament ends. In order to fuse the anti-dazzle device with the glow filament end threaded into the notch on the anti-dazzle device edge, the material of the anti-dazzle device is advantageously melted on both sides of the notch. This ensures complete embedding of the filament end in the re-solidified melt of the anti-glare cap. The anti-dazzle device is advantageously formed from a metal sheet so that it can serve as an electrical power supply for the filament connected to the anti-dazzle device. Advantageously, the notch on the edge of the anti-dazzle device is made by two adjacent, protrusions formed by the anti-dazzle device which have a V-shaped or U-shaped space. These two exposed protrusions can be heated and melted with comparatively little energy using a LASER. The production method according to the invention is particularly suitable for the production of two-filament halogen incandescent lamps which are used as light sources in motor vehicle headlights.
III. Beschreibung des bevorzugten AusführungsbeispielsIII. Description of the preferred embodiment
Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungs- beispiels näher erläutert. Es zeigen:The invention is explained in more detail below on the basis of a preferred exemplary embodiment. Show it:
Figur 1 ein nach dem erfindungsgemäßen Verfahren gefertigtes Glühwendelgestell für eine Zweifaden-Halogenglühlampe mit zwei Glühwendeln, einer Abblendkappe und den dazugehörenden Stromzuführungen,1 shows an incandescent filament frame produced by the method according to the invention for a two-filament halogen incandescent lamp with two incandescent filaments, a dimming cap and the associated power supply lines,
Figur 2 eine für das erfindungsgemäße Herstellungsverfahren bereitgestellte AbblendkappeFigure 2 shows a dimming cap provided for the manufacturing method according to the invention
Figur 3 eine Zweifaden-Halogenglühlampe gemäß des Standes der TechnikFigure 3 is a two-filament halogen lamp according to the prior art
Das er findungs gemäße Herstellungsverfahren soll nachstehend anhand ei- ner Zweifaden-Halogenglühlampe, einer sogenannten H4-Lampe erläutert werden. Der Aufbau der H4-Lampe ist in Figur 3 schematisch dargestellt. Die in Figur 3 abgebildete Zweifaden-Halogenglühlampe besitzt einen einseitig dicht gequetschten Lampenkolben 1 aus Hartglas. Die QLietschdich- tung 10 des Lampenkolbens 1 ist in einem napfartigen Halterteil 2 aus Edel- stahl klemmend fixiert. Das Halterteil 2 bildet zusammen mit der Sockelhülse 3 und dem daran angeformten Justierteller 4 sowie mit dem Sockelstein 5 den Lampensockel. Das Halterteil 2 ist über aus dem Justierteller 4 ausgestanzte und aufwärts gebogene Schweißfahnen 13 mit dem Justierteller 4 verschweißt. Innerhalb des Lampenkolbens 1 befinden sich zwei Glühwendeln 6, 7, die über insgesamt drei aus der Quetschdichtung 10 herausragen- de und zwischen zwei Quarzbalken 11 eingeschmolzene Stromzuführungen 8 jeweils mit einer Kontaktfahne 9 elektrisch leitend verbunden sind. Eine der Glühwendeln 6 ist mit einer Abblendkappe 12 versehen.The manufacturing method according to the invention will be explained below with the aid of a two-filament halogen incandescent lamp, a so-called H4 lamp. The structure of the H4 lamp is shown schematically in FIG. 3. The two-filament halogen incandescent lamp shown in FIG. 3 has a lamp bulb 1 made of tempered glass that is squeezed tightly on one side. The QLietsch seal 10 of the lamp bulb 1 is fixed in a cup-like holder part 2 made of stainless steel. The holder part 2 forms together with the base sleeve 3 and the adjustment plate 4 formed thereon and with the base stone 5 the lamp base. The holder part 2 is welded to the adjustment plate 4 by means of welding lugs 13 punched out of the adjustment plate 4 and bent upwards. Within the lamp bulb 1 there are two incandescent filaments 6, 7, each of which is electrically conductively connected to a contact tab 9 via a total of three current leads 8 protruding from the pinch seal 10 and fused between two quartz beams 11. One of the filaments 6 is provided with a dimming cap 12.
Zur Fertigung der Glühwendelhalterung einer H4-Lampe gemäß des erfindungsgemäßen Herstellungsverfahrens, wird eine aus einem Metallblech, vorzugsweise Molybdänblech, vorgefertigte wannenartige Abblendkappe 20 bereitgestellt (Figur 2). Diese Abblendkappe 20 besitzt an ihrem Rand zwei benachbarte, zahnartig hervorstehende Vorsprünge 21, 22, die miteinander einen als V-förmige oder U-förmige Kerbe 23 ausgebildeten Zwischenraum bilden. Die Abblendkappe 20 weist außerdem eine mit einer Querrippe 24 versehene Schweißfahne 25 auf. Der Boden der Abblendkappe 20 ist mit zwei Buckeln 27 ausgestattet. Ferner werden für das erfindungsgemäße Herstellungsverfahren zwei vorgefertigte Glühwendeln 30, 31 und drei zwischen zwei Quarzbalken 32 fixierte Sfromzuführungsdrähte 33, 34, 35 aus Molybdän bereitgestellt. Zur Fixierung der Abblendkappe 20 wird der Stromzuführungsdraht 35 auf der Außenseite der Abblendkappe 20 mit den beiden im Boden 26 der Abblendkappe 20 angeordneten Buckeln 27 verschweißt.In order to manufacture the filament holder of an H4 lamp according to the manufacturing method according to the invention, a trough-like anti-dazzle device 20 is provided which is prefabricated from a metal sheet, preferably molybdenum sheet (FIG. 2). This anti-dazzle device 20 has at its edge two adjacent, tooth-like protruding projections 21, 22, which together form an intermediate space designed as a V-shaped or U-shaped notch 23. The anti-dazzle device 20 also has a welding lug 25 provided with a transverse rib 24. The bottom of the anti-dazzle device 20 is equipped with two humps 27. Furthermore, two prefabricated incandescent filaments 30, 31 and three molybdenum lead wires 33, 34, 35 fixed between two quartz bars 32 are provided for the production method according to the invention. To fix the anti-dazzle device 20, the power supply wire 35 is welded on the outside of the anti-dazzle device 20 to the two bosses 27 arranged in the bottom 26 of the anti-dazzle device 20.
Die Enden 30a, 30b der Abblendlichtwendel 30 werden jeweils mit einer Molybdänfolie 36 umwickelt und mit der Querrippe 24 auf der Schweißfah- ne 25 der Abblendkappe 20 bzw. mit einem Ende des Stromzuführungsdrahtes 33 punktverschweißt, so daß die Glühwendel 30 in der Abblendkappe 20 angeordnet ist. Zur Fixierung der unterhalb der Abblendkappe 20 angeordneten Fernlichtwendel 31, wird ein Ende 31a der Fernlichtwendel 31 in die von den zahnartigen Vorsprüngen 21, 22 gebildete Kerbe 23 eingelegt und anschließend werden die beiden Vorsprünge 21, 22 jeweils mit Hilfe eines kurzzeitig auf die beiden Vorsprünge 21, 22 einwirkenden LASER-Strahles simultan erhitzt und geschmolzen, so daß das Wendelendel 31a von der Schmelze benetzt und vollständig umschlossen wird. Nach dem Erstarren der Schmelze ist das Ende 31a der Fernlichtwendel 31 vollständig in dem erstarrten Material 20a der Abblendkappe 20 eingebettet. Das wiedererstarrte Material 20a bildet dann die Abschatternase 20a der Abblendkappe 20. Das andere Ende 31b der Fernlichtwendel 31 wird mit einer Molybdänfolie 36 umwickelt und mit dem Stromzuführungsdraht 34 punktverschweißt. Das auf diese Weise entstandene Glühwendelgestell mit Abblendkappe ist in der Figur 1 abgebildet. Dieses komplette Wendelgestell wird auf bekannte Weise in den vorgefertigten Lampenkolben 1 eingeführt und montiert. Das Verschließen des Lampenkolbens 1 mittels der Quetschdichtung 10 und das Sockeln der Lampe sind ebenfalls Stand der Technik und sollen daher hier nicht weiter beschrieben werden.The ends 30a, 30b of the low-beam filament 30 are each wrapped with a molybdenum foil 36 and spot-welded to the transverse rib 24 on the welding flag 25 of the anti-glare cap 20 or to one end of the power supply wire 33, so that the glow filament 30 is arranged in the anti-glare cap 20 . To fix the high-beam filament 31 arranged below the anti-dazzle device 20, one end 31a of the high-beam filament 31 is inserted into the notch 23 formed by the tooth-like projections 21, 22 and then the two projections 21, 22 are each simultaneously heated and melted with the aid of a LASER beam acting briefly on the two projections 21, 22, so that the helix 31a is wetted by the melt and is completely enclosed. After the melt solidifies, the end 31a of the high-beam filament 31 is completely embedded in the solidified material 20a of the anti-dazzle device 20. The re-solidified material 20a then forms the shading nose 20a of the anti-dazzle device 20. The other end 31b of the high-beam filament 31 is wrapped with a molybdenum foil 36 and spot-welded to the power supply wire 34. The resulting incandescent filament frame with anti-dazzle device is shown in FIG. 1. This complete helical frame is introduced and assembled in the prefabricated lamp bulb 1 in a known manner. The closing of the lamp bulb 1 by means of the pinch seal 10 and the base of the lamp are also state of the art and will therefore not be described further here.
Die Erfindung beschränkt sich nicht auf das näher erläuterte Ausführungsbeispiel. Beispielsweise kann auch das mit der Querrippe 24 verschweißte Wendelende 30a der Abblendlichtwendel 30 auf die gleiche Weise wie das Ende 31a der Fernlichtwendel 31 mit dem Rand der Abblendkappe 20 verschmolzen werden. Außerdem ist die Anwendung der erfindungsgemäßen Verschmelzung von Glühwendelende und Abblendkappe nicht auf Zweifa- den-Halogenglühlampen beschränkt. The invention is not limited to the exemplary embodiment explained in more detail. For example, the filament end 30a of the low beam filament 30 welded to the transverse rib 24 can also be fused to the edge of the dimming cap 20 in the same way as the end 31a of the high beam filament 31. In addition, the application of the fusion of the filament end and anti-dazzle cap according to the invention is not restricted to two-filament halogen incandescent lamps.

Claims

Patentansprüche claims
1. Verfahren zur Herstellung einer elektrischen Glühlampe, die ein Lampengefäß (1), wenigstens eine Glühwendel (31) und eine Abblendkappe (20) besitzt, dadurch gekennzeichnet, daß das Verfahren folgende Schritte enthält: - Bereitstellen einer Abblendkappe (20), deren Rand mit einer Kerbe1. A method for producing an electric light bulb, which has a lamp vessel (1), at least one filament (31) and a dimming cap (20), characterized in that the method includes the following steps: - Providing a dimming cap (20), the edge of which with a notch
(23) versehen ist,(23) is provided,
- Bereitstellen einer Glühwendel (31),- Providing a filament (31),
- Einfädeln eines Glühwendelendes (31a) in die Kerbe (23)- Threading a filament end (31a) into the notch (23)
- Verschmelzen der Abblendkappe (20) mit dem in der Kerbe (23) an- geordneten Glühwendelende (31a), indem das Material der Abblendkappe (20) im Bereich der Kerbe (23) zum Schmelzen gebracht wird, so daß die Schmelze das in der Kerbe (23) angeordnete Glühwendelende (31a) benetzt und das Glühwendelende (31a) nach dem Erstarren der Schmelze in dem erstarrten Material (20a) der Ab- blendkappe (20) eingebettet ist.- Fusion of the anti-dazzle device (20) with the glow filament end (31a) arranged in the notch (23) by melting the material of the anti-dazzle device (20) in the area of the notch (23) so that the melt in the Notch (23) arranged filament end (31a) is wetted and the filament end (31a) is embedded in the solidified material (20a) of the shielding cap (20) after the melt has solidified.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Material der Abblendkappe (20) auf beiden Seiten der Kerbe (23) geschmolzen wird.2. The method according to claim 1, characterized in that the material of the anti-dazzle device (20) on both sides of the notch (23) is melted.
3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Ab- blendkappe (20) aus einem Metallblech gefertigt ist.3. The method according to claim 1, characterized in that the anti-dazzle cap (20) is made of a metal sheet.
4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Kerbe (23) am Rand der Abblendkappe (20) ein V-förmiger oder U-förmiger Zwischenraum ist, der von zwei benachbarten, von der Abblendkappe (20) hervorstehenden Vorsprüngen (21, 22) gebildet wird. 4. The method according to claim 1, characterized in that the notch (23) at the edge of the anti-dazzle device (20) is a V-shaped or U-shaped intermediate space which protrudes from two adjacent projections (21) from the anti-dazzle device (20). 22) is formed.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß zur Befestigung des in der Kerbe (23) angeorneten Glühwendelendes (31a) beide Vorsprünge (21, 22) erhitzt und zum Schmelzen gebracht werden.5. The method according to claim 4, characterized in that for fastening the in the notch (23) arranged incandescent filament end (31a) both projections (21, 22) are heated and melted.
6. Elektrische Glühlampe mit zwei Glühwendeln (30, 31) und einer Abblendkappe (20) für eine dieser Glühwendeln (30) hergestellt gemäß des Verfahrens nach Anspruch 1. 6. Electric light bulb with two filaments (30, 31) and a dimming cap (20) for one of these filaments (30) produced according to the method of claim 1.
EP98910595A 1997-02-25 1998-02-10 Method for manufacturing an electric light bulb Expired - Lifetime EP0910867B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19707245 1997-02-25
DE19707245A DE19707245A1 (en) 1997-02-25 1997-02-25 Method of making an electric light bulb
PCT/DE1998/000367 WO1998038670A1 (en) 1997-02-25 1998-02-10 Method for manufacturing an electric light bulb

Publications (2)

Publication Number Publication Date
EP0910867A1 true EP0910867A1 (en) 1999-04-28
EP0910867B1 EP0910867B1 (en) 2004-01-14

Family

ID=7821254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98910595A Expired - Lifetime EP0910867B1 (en) 1997-02-25 1998-02-10 Method for manufacturing an electric light bulb

Country Status (14)

Country Link
US (1) US5984751A (en)
EP (1) EP0910867B1 (en)
JP (1) JP2000509896A (en)
KR (1) KR100473699B1 (en)
CN (1) CN1134824C (en)
AR (1) AR010898A1 (en)
AT (1) ATE257976T1 (en)
BR (1) BR9805911A (en)
CA (1) CA2252615C (en)
DE (2) DE19707245A1 (en)
DK (1) DK0910867T3 (en)
HU (1) HU222936B1 (en)
TW (1) TW364149B (en)
WO (1) WO1998038670A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6639364B1 (en) * 2000-06-29 2003-10-28 Koninklijke Philips Electronics N.V. Halogen incandescent capsule having filament leg clamped in press seal
DE10114178A1 (en) * 2001-03-23 2002-10-10 Aventis Pharma Gmbh Zinc-free and low-zinc insulin preparations with improved stability
DE10131444A1 (en) * 2001-06-29 2003-01-09 Philips Corp Intellectual Pty More thread-motor vehicle headlight lamp
DE10213297A1 (en) * 2002-03-25 2003-10-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric light bulb
DE10219729A1 (en) * 2002-05-02 2003-11-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Light bulb for automotive headlights
DE102004004017A1 (en) * 2004-01-22 2005-08-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electric lightbulb
DE102004023935A1 (en) * 2004-05-12 2005-12-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Filament for an incandescent lamp and incandescent lamp
DE102004053644A1 (en) * 2004-11-03 2006-05-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlamp
DE102005011935A1 (en) * 2005-03-14 2006-09-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lamp with shutdown device
AT8564U1 (en) * 2005-06-29 2006-09-15 Plansee Se HALOGEN LIGHT BULB WITH MOUNTING CAP OF MO-ALLOY
DE102006060029A1 (en) * 2006-12-19 2008-06-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dimming cap with helix
DE202015103408U1 (en) * 2015-06-29 2015-07-09 Koninklijke Philips N.V. Dimming cap for two-filament light bulb
CN107481916A (en) * 2017-08-02 2017-12-15 常熟林芝电子技术有限公司 The Halogen lamp LED of automobile using
CN107393806A (en) * 2017-08-02 2017-11-24 常熟林芝电子技术有限公司 Automobile-used Halogen lamp LED

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE224445C (en) *
US2224855A (en) * 1938-04-21 1940-12-17 Tung Sol Lamp Works Inc Incandescent lamp and method of manufacture
GB1313532A (en) * 1970-04-16 1973-04-11 Thron Electrical Ind Ltd Incandescent lamps
BE788518A (en) * 1971-09-09 1973-03-07 Philips Nv ELECTRICAL INCANDESCENCE LAMP
GB1477138A (en) * 1973-11-14 1977-06-22 British Sealed Beams Ltd Filament shields
US4058749A (en) * 1976-04-05 1977-11-15 Wagner Electric Corporation Filament shield for sealed headlamp and mounting method therefor
DD224445A1 (en) * 1984-06-07 1985-07-03 Narva Gluehlampen HALOGEN LIGHT BULB WITH LIGHTING LIGHT ARRANGEMENT CAP
US4893050A (en) * 1988-08-22 1990-01-09 Gte Products Corporation Lamp with a captured reflector and method of manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9838670A1 *

Also Published As

Publication number Publication date
KR20000064541A (en) 2000-11-06
CN1134824C (en) 2004-01-14
HUP0000472A3 (en) 2000-07-28
HUP0000472A2 (en) 2000-06-28
WO1998038670A1 (en) 1998-09-03
CA2252615C (en) 2006-08-15
DK0910867T3 (en) 2004-02-23
AR010898A1 (en) 2000-07-12
JP2000509896A (en) 2000-08-02
DE19707245A1 (en) 1998-08-27
BR9805911A (en) 1999-08-24
TW364149B (en) 1999-07-11
DE59810583D1 (en) 2004-02-19
HU222936B1 (en) 2003-12-29
KR100473699B1 (en) 2005-04-14
CN1217817A (en) 1999-05-26
ATE257976T1 (en) 2004-01-15
EP0910867B1 (en) 2004-01-14
US5984751A (en) 1999-11-16
CA2252615A1 (en) 1998-09-03

Similar Documents

Publication Publication Date Title
EP0910867B1 (en) Method for manufacturing an electric light bulb
EP0231935B1 (en) Dazzle headlight lamp for motor vehicles
EP1294013B1 (en) Incandescent lamp for automobile headlight
DE19855412A1 (en) Electric lamp
EP0776025B1 (en) Incandescent electric lamp with cap and method of fabricating such, as well as cap for an incandescent electric lamp
EP2087506B1 (en) Halogen bulb
DE3127461A1 (en) GLOW FILM HOLDER AND ELECTRICAL CONNECTION FOR A HALOGEN LAMP AND PRODUCTION METHOD
DE3035786A1 (en) BULB
EP0807316B1 (en) Process for producing electric incandescent lamps
DE19538497C2 (en) Method of manufacturing an electric lamp
DE2909259C2 (en)
EP2106615B1 (en) Dipping cap comprising a filament
EP2465134B1 (en) Halogen bulb for vehicle headlights
DE2725834B2 (en) Electric lamp
EP0057006A2 (en) Electric incandescent lamp
EP1447837A2 (en) Incandescent lamp for vehicle headlamp
WO2008055943A2 (en) Halogen bulb
DE102012202081A1 (en) FOIL FOR ELECTRIC LAMPS AND ELECTRIC LAMPS, AND METHOD FOR PRODUCING A GLOWER
EP1772896B1 (en) Lamp
DE102018201068B4 (en) BULB FOR VEHICLE HEADLIGHTS AND MANUFACTURING PROCESSES
EP1560258A2 (en) Incandescent lamp for vehicle headlamp
EP0751550B1 (en) Method for assembling an electric incandescent lamp and incandescent lamp fabricated according to said method
DE19612169A1 (en) Connection of filament to current leads in electric lamp
DE29507879U1 (en) Halogen light bulb with no cement
DE3000318A1 (en) Motor vehicle spotlight assembly - has spring wire socket holders, with U=shaped shanks holding halogen lamp pinch stem and fixed to current leads

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980731

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE DK FI FR GB IT NL

17Q First examination report despatched

Effective date: 20021022

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE DK FI FR GB IT NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59810583

Country of ref document: DE

Date of ref document: 20040219

Kind code of ref document: P

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040301

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20041015

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20060105

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20060118

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20060209

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20060214

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20060215

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070210

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070210

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20070901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070210

BERE Be: lapsed

Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M.

Effective date: 20070228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070901

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070210

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080227

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080214

Year of fee payment: 11

Ref country code: DE

Payment date: 20080410

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060209

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090210