WO2003071582A2 - Base attachment for electric lamps - Google Patents
Base attachment for electric lamps Download PDFInfo
- Publication number
- WO2003071582A2 WO2003071582A2 PCT/IB2003/000526 IB0300526W WO03071582A2 WO 2003071582 A2 WO2003071582 A2 WO 2003071582A2 IB 0300526 W IB0300526 W IB 0300526W WO 03071582 A2 WO03071582 A2 WO 03071582A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- lamp
- attachment
- base attachment
- bulb
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
- H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/34—Joining base to vessel
-
- 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
- H01K3/16—Joining of caps to vessel
Definitions
- the invention relates to a base attachment on electric lamps, which attaches a base to a cylindrical lamp neck by means of mutual engagement.
- Such a base attachment is known, for example, from JP 55131949.
- the cylindrical lamp neck which consists of borosilicate glass or another hard glass, has an indentation on its surface in the area of transition to the lamp bulb.
- a part of the metallic screw base is forced mechanically into this indentation, such that an interlocking connection of these two parts is produced.
- This mechanical deformation of the base rim is effected by pressing or forcing a ram tool against the lamp base, which is cylindrical in this area.
- the magnetic forming method has long been known, for example from US 3,251,974.
- This method which is a high speed production process, forces are generated by rapidly changing magnetic fields, which forces are used for non- contact forming of in particular thin metal parts exhibiting good electrical conductivity, which metal parts consist of aluminum or copper for example.
- a strong magnetic field is built up by the current flow in a coil, whereby a current is induced in a workpiece.
- This current and the magnetic flux density of the field determine the force which becomes active between workpiece and working coil. If, for example, a thin, cylindrical body is to be forced externally onto another cylindrical body, which regularly exhibits play in relation thereto, "compression coil systems" are used.
- the object of the invention is achieved in that the mutual engagement is brought about between at least one deformed area of the base produced by magnetic forming and at least one recess in the lamp bulb.
- the particular manner of applying the magnetic forming method has to be adapted to the lamp type used in each case.
- the main magnetic forming parameters such as the induced current, the pulse intensity and the magnetic flux density of the field, which determine the force generated, are of particular significance in this instance.
- the connection strength conventionally required must be ensured without impairing the performance of the lamp.
- the attachment In the case of a lamp with a screw base, the attachment must in certain cases be capable of withstanding, for example, a torsional force of 2.5 Nm.
- the material used and the dimensioning of the lamp base, in particular the wall thickness of the base must routinely be taken into account.
- the shape and number of recesses in the lamp bulb must be adjusted as a function of the required connection strength, in such a way that reliable performance of the lamp is ensured.
- the material parameters of the lamp neck regularly produced from borosilicate glass or another conventional soft or hard glass or quartz, have also to be given due consideration, especially in order to reliably avoid damage thereto.
- Preferred materials for the base are ductile materials with good electrical conductivity, such as aluminum, copper or alloys thereof.
- the recess is preferably convex in shape and has rounded areas of transition to the adjoining areas of the bulb. This shape or form of the recess and the adjoining areas allows technologically simple production of the lamp neck.
- a further preferred configuration of the invention relates to a special arrangement of the power supply system.
- One end of at least one conventional power supply lead is arranged between base and bulb, such that the latter is connected in electrically conductive manner to the base after magnetic forming. Additional attachment, for example by conventional soldering, is not necessary with a power supply lead, thus arranged such that lamp production efficiency is further increased by the base attachment according to the invention.
- the object of the invention is additionally achieved by the provision of a lamp which comprises at least one base attachment according to the features of the claims 1 to 4.
- the production and hense provision of lamps which have a so-called "uncemented" base attachment are a focal point of development and are of enormous economic significance. Such arrangements have to fulfill the considerable demands of partially or fully automated industrial manufacture, for example with regard to the quality required of the lamps produced, the use of maximally environmentally compatible means and short cycle times, if they are to be applied in practice.
- Fig. 1 is a side, partially exploded view of the bulb of a lamp with a screw base
- Fig. 2 is a schematic representation of a base.
- Fig. 1 shows a lamp bulb 1, which has recesses 2 in the area of transition to the cylindrical lamp neck 3.
- the recesses 2, of which only one is visible in Fig. 1 are each convex in shape and exhibit rounded areas of transition to the adjoining areas of the bulb.
- the bulb 2 is made from a soft glass.
- a cylindrical area 5 which is forced against the cylindrical lamp neck 3 during magnetic forming.
- the lower part of the base 4 is provided with a conventional screw base thread.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03704841A EP1497843A2 (en) | 2002-02-20 | 2003-02-17 | Base attachment for electric lamps |
AU2003207368A AU2003207368A1 (en) | 2002-02-20 | 2003-02-17 | Base attachment for electric lamps |
US10/504,748 US20050116605A1 (en) | 2002-02-20 | 2003-02-17 | Base attachment for electric lamps |
JP2003570386A JP2005518639A (en) | 2002-02-20 | 2003-02-17 | Electric lamp base attachment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10207063A DE10207063A1 (en) | 2002-02-20 | 2002-02-20 | Base attachment for electric lamp achieves mutual engagement between at least one deformed region of base produced by magnetic shaping and at least one opening in lamp bulb |
DE10207063.6 | 2002-02-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003071582A2 true WO2003071582A2 (en) | 2003-08-28 |
WO2003071582A3 WO2003071582A3 (en) | 2004-10-21 |
Family
ID=27635173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/000526 WO2003071582A2 (en) | 2002-02-20 | 2003-02-17 | Base attachment for electric lamps |
Country Status (7)
Country | Link |
---|---|
US (2) | US20050116605A1 (en) |
EP (1) | EP1497843A2 (en) |
JP (1) | JP2005518639A (en) |
CN (1) | CN1742352A (en) |
AU (1) | AU2003207368A1 (en) |
DE (1) | DE10207063A1 (en) |
WO (1) | WO2003071582A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2631835C1 (en) * | 2016-06-16 | 2017-09-27 | Юлия Алексеевна Щепочкина | Electric lamp base |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016176564A1 (en) | 2015-04-29 | 2016-11-03 | Michael Archuleta | Magnetic coupling for bulbs and sockets |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1911046A (en) * | 1926-03-31 | 1933-05-23 | Gen Electric | Apparatus for basing incandescent lamps and similar articles |
US3629640A (en) * | 1970-01-02 | 1971-12-21 | Sylvania Electric Prod | Lamp base |
US20030025452A1 (en) * | 2001-08-06 | 2003-02-06 | Cornelis Versluijs | Low-pressure gas discharge lamps |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1437723A (en) * | 1920-10-28 | 1922-12-05 | Daniel R Coughlin | Theftproof electric-light bulb |
NL24127C (en) * | 1927-10-31 | |||
US2615073A (en) * | 1949-03-12 | 1952-10-21 | Lumalampan Ab | Electric lamp bulb |
US3775634A (en) * | 1971-03-22 | 1973-11-27 | Westinghouse Electric Corp | Electric lamp having a base assembly with integral means for axially-orienting the end contact |
JPS55131949A (en) * | 1979-03-31 | 1980-10-14 | Toshiba Corp | Fixation of base to bulb |
NL8102594A (en) * | 1981-05-27 | 1982-12-16 | Philips Nv | ELECTRIC LAMP WITH A MECHANICALLY ATTACHED LAMP BASE. |
US5432400A (en) * | 1992-09-25 | 1995-07-11 | Gte Products Corporation | Lamp having interference-fit metallic bases |
US5879216A (en) * | 1996-03-08 | 1999-03-09 | Matsushita Electronics Corporation | Method of fixing mercury containing alloy within fluorescent tubes |
DE19734687C1 (en) * | 1997-08-11 | 1999-01-28 | Ald Vacuum Techn Gmbh | Inductive separation of metal end caps from glass fluorescent tube for reprocessing |
US6346767B1 (en) * | 1999-12-08 | 2002-02-12 | Osram Sylvania Inc. | Lamp with formed, cemented clip to secure base to lamp |
US6969947B2 (en) * | 2000-06-29 | 2005-11-29 | General Electric Company | Lead free base locking mechanism |
CN1383184A (en) * | 2001-04-26 | 2002-12-04 | 松下电器产业株式会社 | Bulb-shaped non-electrode discharge lamp and non-electrode discharge lamp |
US6791250B2 (en) * | 2002-10-23 | 2004-09-14 | Eye Lighting International | Seal and flag assembly for lamp base sidewire welding |
-
2002
- 2002-02-20 DE DE10207063A patent/DE10207063A1/en not_active Withdrawn
-
2003
- 2003-02-17 JP JP2003570386A patent/JP2005518639A/en not_active Abandoned
- 2003-02-17 WO PCT/IB2003/000526 patent/WO2003071582A2/en active Application Filing
- 2003-02-17 CN CNA038040891A patent/CN1742352A/en active Pending
- 2003-02-17 US US10/504,748 patent/US20050116605A1/en not_active Abandoned
- 2003-02-17 EP EP03704841A patent/EP1497843A2/en not_active Withdrawn
- 2003-02-17 AU AU2003207368A patent/AU2003207368A1/en not_active Abandoned
-
2006
- 2006-07-21 US US11/459,139 patent/US20060285338A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1911046A (en) * | 1926-03-31 | 1933-05-23 | Gen Electric | Apparatus for basing incandescent lamps and similar articles |
US3629640A (en) * | 1970-01-02 | 1971-12-21 | Sylvania Electric Prod | Lamp base |
US20030025452A1 (en) * | 2001-08-06 | 2003-02-06 | Cornelis Versluijs | Low-pressure gas discharge lamps |
EP1417698A1 (en) * | 2001-08-06 | 2004-05-12 | Koninklijke Philips Electronics N.V. | Low-pressure gas discharge lamps |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0041, no. 89 (E-039), 25 December 1980 (1980-12-25) & JP 55 131949 A (TOSHIBA CORP), 14 October 1980 (1980-10-14) cited in the application * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2631835C1 (en) * | 2016-06-16 | 2017-09-27 | Юлия Алексеевна Щепочкина | Electric lamp base |
Also Published As
Publication number | Publication date |
---|---|
DE10207063A1 (en) | 2003-08-28 |
AU2003207368A1 (en) | 2003-09-09 |
CN1742352A (en) | 2006-03-01 |
US20060285338A1 (en) | 2006-12-21 |
AU2003207368A8 (en) | 2003-09-09 |
JP2005518639A (en) | 2005-06-23 |
EP1497843A2 (en) | 2005-01-19 |
WO2003071582A3 (en) | 2004-10-21 |
US20050116605A1 (en) | 2005-06-02 |
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