EP0255638A2 - Lampe à incandescence et fabrication de son ampoule tubulaire - Google Patents

Lampe à incandescence et fabrication de son ampoule tubulaire Download PDF

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Publication number
EP0255638A2
EP0255638A2 EP87110420A EP87110420A EP0255638A2 EP 0255638 A2 EP0255638 A2 EP 0255638A2 EP 87110420 A EP87110420 A EP 87110420A EP 87110420 A EP87110420 A EP 87110420A EP 0255638 A2 EP0255638 A2 EP 0255638A2
Authority
EP
European Patent Office
Prior art keywords
spiral
retaining ring
mandrel
section
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.)
Granted
Application number
EP87110420A
Other languages
German (de)
English (en)
Other versions
EP0255638B1 (fr
EP0255638A3 (en
Inventor
Emil Czako
Zoltan Losonczy
Tibor Hornyak
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.)
Tungsram Rt
Original Assignee
Tungsram Rt
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10963811&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0255638(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tungsram Rt filed Critical Tungsram Rt
Priority to AT87110420T priority Critical patent/ATE89100T1/de
Publication of EP0255638A2 publication Critical patent/EP0255638A2/fr
Publication of EP0255638A3 publication Critical patent/EP0255638A3/de
Application granted granted Critical
Publication of EP0255638B1 publication Critical patent/EP0255638B1/fr
Anticipated expiration legal-status Critical
Revoked 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 a retaining ring for supporting the spiral of gas-filled incandescent lamps (so-called halogen floodlights) with a flared tube bulb at both ends, in particular halogen line spotlights, further a method for producing this retaining ring and inserting it into the bulb.
  • halogen floodlights gas-filled incandescent lamps
  • the spiral is provided in a known manner with the retaining ring in such a way that a mandrel is inserted into the spiral and the part of the retaining ring comprising the spiral is clamped to the winding turns of the spiral, after which the spiral provided with the retaining ring is introduced into the tube bulb and the Mandrel is withdrawn.
  • the relatively brittle spiral can burst when the mandrel is inserted into the spiral, during the clamping of the retaining ring on the spiral, the spiral can deform in an undesirable manner and further disadvantageous deformations can occur when the spiral is inserted with the retaining ring into the piston. Since the retaining rings are only loosely adapted to the inner wall of the tube bulb, they cannot hold the spiral in the axis of the bulb with corresponding certainty during operation of the bulb, so that it can easily move out of the axis of the tube bulb.
  • the aim of the invention in addition to eliminating the disadvantages mentioned above, is to create such a retaining ring which forms a unit with the tubular bulb, and furthermore to develop such a method for producing the retaining ring, with the aid of which at the same time the complete automation of the production technology for lamp assembly is solved can.
  • the invention is based on the finding that the spiral can be held more precisely and without deformation in the axis line of the tube bulb during operation of the lamp if the retaining rings form a unit with the tube bulb and not with the spiral.
  • one end of a flexible metal wire is attached to a mandrel of appropriate size provided with an insert, the wire is applied by winding to the mandrel body and to the insert, equally in a length exceeding one turn , then cut off the wire at its unsecured end.
  • the tube piston located in the axis of the mandrel is then pulled onto the mandrel provided with the wire up to a corresponding stop point. As soon as the tube bulb reaches the stop point, the attached wire end is exposed by pulling back the insert.
  • the section of the retaining ring made of flexible metal wire which has a larger diameter, now presses against the inner wall of the tube bulb.
  • the mandrel is withdrawn and, if necessary, positioned to produce another retaining ring.
  • the largest diameter of the retaining ring wound on the mandrel must be designed in such a way that it does not prevent the tube piston from being pulled onto the mandrel prevents, ie the tube piston can be guided onto the mandrel without friction.
  • the diameter of the smaller diameter section of the retaining ring wound on the mandrel is determined by the dimensions of the insert and the elasticity of the wire and has such a dimension that it surrounds the spiral of the light bulb only loosely.
  • the spiral of the incandescent lamp is pulled into the holding ring using a special tool.
  • the spiral can move slightly freely inside the retaining ring, so it maintains its shape both during assembly and during operation and does not deform.
  • the gas-filled incandescent lamp provided with a retaining ring designed according to the invention can be operated not only in a horizontal position but also in any position. In any position of the piston, the retaining ring remains in the position assumed during assembly due to its position pressed against the inner wall of the piston, in contrast to the conventional retaining rings, which only remain in the position received during assembly in the horizontal position of the piston.
  • a gas-filled incandescent lamp illustrated as an example and flattened at both ends, has a holding ring 3 holding a spiral 2 in the axis of the tube bulb 1.
  • the retaining ring 3 has two sections: a spiral-shaped first section that extends over a length of a complete winding path, which presses tightly against the inner wall of the tubular bulb 1, and abuts the latter, and a complete winding path that also follows the first section exceeding, spiral-shaped, second section, the inner diameter of which is smaller than the diameter of the first section, but exceeds the outer diameter of the spiral extending in its interior.
  • the retaining ring 3 cannot move in the tube piston 1, but the spiral 2 can move in the retaining ring 3 in the axial direction, since the length of the second section of the retaining ring is greater than one turn of the winding, but shorter than in the conventional one, which means that The number of spiral passages that are not glowing in a corresponding manner and are excluded from the function is lower.
  • FIGS. 3a and 3b An example of the manufacture and insertion of this retaining ring 3 in the piston is schematically illustrated in FIGS. 3a and 3b.
  • one end of a flexible metal wire in the present example a tungsten wire
  • a tungsten wire is inserted into a recess formed on the mandrel 5 after the displacement of an insert 6.
  • the insert 6 is returned to its original position, whereby the wire end is fastened.
  • the mandrel 5 is moved in the radial and tangential direction, during which the insert 6 also moves forward.
  • the wire winds on the mandrel body and on the insert.
  • the tube piston 1 arranged in the axis line of the mandrel 5 is moved forward until a predetermined position is reached (up to a stop point), i.e.
  • the advantage of the retaining ring designed according to the invention is that the deformation of the spiral of the incandescent lamp is largely prevented and the position of the spiral in the axis line of the lamp is ensured during operation in any position of the incandescent lamp.
  • an automatic (mechanical) light bulb assembly ensures.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Resistance Heating (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP87110420A 1986-08-06 1987-07-17 Lampe à incandescence et fabrication de son ampoule tubulaire Revoked EP0255638B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87110420T ATE89100T1 (de) 1986-08-06 1987-07-17 Elektrische gluehlampe und herstellung von deren roehrenkolben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU863377A HU195707B (en) 1986-08-06 1986-08-06 Ring for supporting the spiral filament of gas-filled incandescent lamp with tube-like envelope flattened on both ends and method for making the said ring and for putting the said ring into the envelope
HU337786 1987-06-11

Publications (3)

Publication Number Publication Date
EP0255638A2 true EP0255638A2 (fr) 1988-02-10
EP0255638A3 EP0255638A3 (en) 1989-11-29
EP0255638B1 EP0255638B1 (fr) 1993-05-05

Family

ID=10963811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110420A Revoked EP0255638B1 (fr) 1986-08-06 1987-07-17 Lampe à incandescence et fabrication de son ampoule tubulaire

Country Status (5)

Country Link
EP (1) EP0255638B1 (fr)
JP (1) JPS6348741A (fr)
AT (1) ATE89100T1 (fr)
DE (1) DE3785703D1 (fr)
HU (1) HU195707B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6781291B2 (en) 2001-06-27 2004-08-24 Asm America Inc. Filament support for lamp
US6856078B2 (en) 2001-06-27 2005-02-15 Asm America, Inc. Lamp filament design

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3489277B2 (ja) 1995-07-17 2004-01-19 トヨタ自動車株式会社 車両用制動装置
DE60215609T2 (de) 2001-01-10 2007-08-23 KSR Industrial Corp., Southfield Bremspedalmodul mit variabler übersetzung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1321044A (fr) * 1961-03-23 1963-03-15 Lampes Sa Supports de filament pour lampes à incandescence
US3295007A (en) * 1964-06-25 1966-12-27 Gen Electric Differential output tubular incandescent lamp
US3820207A (en) * 1972-02-04 1974-06-28 Gen Electric Method of manufacturing lamp with filament support structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6781291B2 (en) 2001-06-27 2004-08-24 Asm America Inc. Filament support for lamp
US6856078B2 (en) 2001-06-27 2005-02-15 Asm America, Inc. Lamp filament design
US6980734B2 (en) 2001-06-27 2005-12-27 Asm America, Inc. Lamp filament design

Also Published As

Publication number Publication date
EP0255638B1 (fr) 1993-05-05
JPS6348741A (ja) 1988-03-01
EP0255638A3 (en) 1989-11-29
DE3785703D1 (de) 1993-06-09
HUT44359A (en) 1988-02-29
HU195707B (en) 1988-06-28
ATE89100T1 (de) 1993-05-15

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