EP0815578B1 - Kittlos gesockelte elektrische lampe - Google Patents

Kittlos gesockelte elektrische lampe Download PDF

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Publication number
EP0815578B1
EP0815578B1 EP96938966A EP96938966A EP0815578B1 EP 0815578 B1 EP0815578 B1 EP 0815578B1 EP 96938966 A EP96938966 A EP 96938966A EP 96938966 A EP96938966 A EP 96938966A EP 0815578 B1 EP0815578 B1 EP 0815578B1
Authority
EP
European Patent Office
Prior art keywords
lamp
reflector
support sleeve
metal
designed
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 - Lifetime
Application number
EP96938966A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0815578A1 (de
Inventor
Peter Helbig
Hermann Steiner
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 EP0815578A1 publication Critical patent/EP0815578A1/de
Application granted granted Critical
Publication of EP0815578B1 publication Critical patent/EP0815578B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement
    • H01J5/60—Means for fastening the separate part to the vessel, e.g. by cement for fastening by mechanical means
    • 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

Definitions

  • Such a cementless socketed electric lamp is for example in the U.S. Patent No. 4,412,273.
  • the lamp is a halogen bulb with a base on one side for use in a motor vehicle headlight.
  • This lamp owns a lamp base made of metal and plastic parts.
  • the Lamp base has a cup-like metallic fix ring, a metallic one Carrier sleeve and a provided with the electrical connections of the lamp Base part made of plastic.
  • the carrier sleeve protrudes telescopically the base part in which it is anchored, and is by several molded welding tabs welded to the fixed ring.
  • the fix ring has a recess in which the pinch foot of the lamp bulb is fixed.
  • the Plastic base part has an annular flange and an adjustment plate. Located between the flange and the adjustment plate an annular circumferential groove for receiving a sealing ring, which seals the reflector opening designed as a lamp holder.
  • the adjustment plate closes approximately with the inside of the reflector from.
  • the disadvantage is that here the plastic adjustment plate of the base part directly exposed to infrared radiation from the lamp is because the plastic tends to evaporate when heated, causing the reflector becomes cloudy.
  • the plastic also has one comparatively high coefficient of thermal expansion, so that a Heating of the adjustment plate by irradiation with that generated by the lamp Infrared radiation causes misalignment of the light source.
  • the telescopic design of the carrier sleeve has the disadvantage that the Lamp has a comparatively large overall length and correspondingly deep Requires reflectors.
  • the electric lamp with a cementless base according to the invention is used into a reflector, for example the reflector of a motor vehicle headlight, intended.
  • This lamp has one made of metal and plastic parts assembled lamp base.
  • the lamp base has a metallic Holder part in which the lamp bulb is fixed, a carrying the holder part metallic support sleeve and one with the electrical connections of the lamp provided plastic base part in which the carrier sleeve is anchored.
  • the plastic base part has several in a common plane Reference lugs, on the one hand, for holding the lamp in the reflector serve, but also determine the position of the light source in the reflector and during the lamp base assembly the reference plane for the Define adjustment of the light source.
  • These plastic reference lugs reach into the opening of the reflector designed as a lamp holder one and according to the invention are each connected to the metallic one Molded cover flap covered so that the reference lugs against the electromagnetic radiation generated by the lamp, in particular shielded against infrared radiation.
  • the cover flaps advantageously cover the lamp bulb facing top of the reference lugs.
  • the metallic cover flaps have a clear one lower thermal expansion and also a higher rigidity than that of Plastic existing reference noses and bow a heat-related Deformation of the reference lugs and the associated misalignment of the Light source in front of the reflector. They lend the lamp base in the area the reference lugs, especially when heated, a higher mechanical Stability.
  • the task solved the invention in that the trained as a lamp holder Opening of the reflector engaging reference noses are made of metal and are formed in one piece with the metallic carrier sleeve.
  • the carrier sleeve is advantageously made of steel or nickel silver.
  • Plastic base parts are suitable for both thermoplastics and thermosets.
  • the metallic carrier sleeve is advantageously the one according to the invention Lamp formed in a ring and on the fit diameter of the lamp holder trained opening of the reflector matched with at least one pressure spring equipped after installing the lamp in the reflector in the area of the lamp holder on the reflector wall is present.
  • This at least one pressure spring ensures a tight fit the lamp in the lamp holder of the reflector and balances small tolerances in the manufacture of the lamp base and as a lamp holder trained opening of the reflector.
  • the at least one pressure spring is advantageously designed as a curved leaf spring.
  • the invention is an end of the leaf spring welded to the metallic support sleeve while the other end slidably abuts the lamp base so that the leaf spring after installation the lamp resiliently on the edge of the lamp socket Opening of the reflector is present.
  • the ends of the leaf spring are each in a gap-like Recess between the metallic support sleeve and the plastic base part arranged so that the leaf spring resilient after installing the lamp at the edge of the opening of the reflector designed as a lamp holder is present.
  • the pressure spring advantageously consists of a spring steel.
  • the plastic base part is usually injection molded manufactured.
  • the metallic carrier sleeve is advantageously either injected into the plastic base part or is or anchored in the plastic base part.
  • the holder part is advantageously via an intermediate ring, which with molded, angled welding tabs is equipped with the support sleeve connected.
  • the welding tabs of the intermediate ring are advantageous with the cover flaps molded onto the carrier sleeve or welded metallic reference lugs.
  • the intermediate ring offers two additional ones Degrees of freedom in the adjustment of the light source, so that a five-axis adjustment the light source is made possible.
  • the plastic base part has a circular, advantageously conical design Use a sealing ring to accommodate it.
  • the inside diameter of the Sealing ring is advantageously fit on the circumferential, conical executed groove matched and varies linearly with the height of the Sealing ring.
  • the lamp base of the electric lamp according to the invention combines the advantages of a metal base, namely low manufacturing tolerances and exact adjustment possibility for the light source, with the advantages of a Plastic base, namely inexpensive manufacture and simple sealing of the base.
  • the putty-free skirted Lamp ( Figures 1 and 2) is a single filament halogen lamp, which are intended for use in a motor vehicle headlight is.
  • This lamp has a glass, essentially cylindrical Lamp bulb 10 with a tightly squeezed lamp bulb end 10a, which is commonly referred to as squeeze foot 10a.
  • the cathedral 10b of the The lamp bulb 10 has a black, light-absorbing coating Mistake.
  • a light source that is aligned parallel to the lamp bulb axis serves as the light source Incandescent filament 10c, which is electrically conductive with from the squeezing foot 10a lead out 11 is connected.
  • the lamp bulb 10 is with its pinch foot 10a in a metallic formed as a fixed ring Holder part 12 fixed.
  • the fix ring 12 is of an annular, metallic Carrier sleeve 13 worn.
  • the carrier sleeve 13 has four molded on Welding lugs 13a, which are spot-welded or LASER-welded to the fixed ring 12 are.
  • the lamp base also has a support sleeve 13 with the electrical connections 15 of the lamp provided plastic base part 14 in which the Carrier sleeve 13 is anchored. The electrical connections 15 of the lamp are welded to one of the power supply lines 11.
  • With the plastic base part 14 is an injection molded part into which the metallic Carrier sleeve 13 is injected.
  • the plastic base part 14 has three molded, Reference lugs arranged equidistantly along a circumference 14a, which for adjusting the filament 10c and for fastening the lamp in Serve reflector 17 of the headlamp.
  • the one designed as a lamp holder Opening 17a of the reflector 17 engaging reference lugs 14a are each molded onto and from the carrier sleeve 13 angled cover flap 13b covered and so against that of the filament 10c generated infrared radiation shielded. Cover for this purpose the cover tabs 13b the top facing the lamp bulb the reference lugs 14a.
  • the plastic base part 14 also has one annular circumferential, conical groove 14b in which a sealing ring 16 made of rubber or silicone.
  • the sealing ring 16 lies on the outside of the reflector wall 17 and seals it as a lamp holder trained opening 17a of the reflector.
  • the inside diameter the sealing ring 16 is a snug fit on the conical Groove 14b matched and varies linearly with the height of the sealing ring.
  • the Plastic base part 14 is poured out with a potting compound that the Seals lamp base in the area of the power supply lines 11.
  • the three reference noses 14a, the sealing ring 16 and one below a reference nose 14a serve on the metallic support sleeve 13 molded pressure spring 13c for the correct mounting of the lamp in the lamp holder 17a of the Reflector.
  • the lamp base and the lamp holder 17a form a bayonet catch.
  • the lamp To install the lamp in the reflector, the lamp, with the lamp bulb 10 ahead, into the lamp socket Opening 17a of the reflector inserted, the three reference lugs 14a reach through a cut-out in the edge of the opening 17a. Then the lamp in the lamp holder up to one Stop (not shown) rotated so that the reflector wall 17 with Clamp fit between the reference lugs 14a and the sealing ring 16 is arranged is.
  • the pressure spring 13c resiliently lies on the edge of the lamp holder trained opening 17a of the reflector.
  • one of the three reference lugs 14a To prevent installation of the lamp in the reflector, one of the three reference lugs 14a have a different shape than the other two reference lugs 14a. The same naturally also applies to those on the reference lugs 14a coordinated recesses in the opening designed as a lamp holder 17a. Details of the pressure spring 13c are shown in FIGS. 7 and 8.
  • FIG. 3 and 4 is a second embodiment of the invention shown schematically.
  • This second embodiment differs from the first embodiment essentially only by an intermediate ring 28, which is introduced as an additional base component and the fixing ring connects to the carrier sleeve.
  • the lamp with a cementless base according to the invention a single filament halogen lamp designed for use in a motor vehicle headlight is provided.
  • This lamp has a glass, essentially cylindrical lamp bulb 20 with a tightly squeezed Lamp bulb end 20a, commonly referred to as pinch foot 20a becomes.
  • the dome 20b of the lamp bulb 20 is covered with a black light-absorbing coating.
  • a parallel serves as the light source incandescent filament 20c aligned with the lamp bulb axis, which is electrically conductive with current leads 21 led out of the pinch foot 20a connected is.
  • the lamp bulb 20 is in one with its pinch foot 20a metallic holder part 22 designed as a fixed ring.
  • the fix ring 22 is supported by a metallic intermediate ring 28, which has three molded, angled welding tabs 28a is equipped.
  • the three Welding tabs 28a of the intermediate ring 28 are each with a cover tab 23b of an annular metallic carrier sleeve 23 LASER-welded.
  • the intermediate ring 28 and the The metal base also has a metallic support sleeve 23 with the electrical ones Connections 25 of the lamp provided plastic base part 24, in which the support sleeve 23 is anchored.
  • the electrical connections 25 of the Lamps are welded to one of the power supply lines 21.
  • At the plastic base part 24 is an injection molded part into which the metallic carrier sleeve 23 is injected.
  • the plastic base part 24 has three molded, equidistantly arranged along a circumference Reference lugs 24a, for adjusting the filament 20c and for fastening serve the lamp in the reflector 27 of the headlight.
  • the one in the lamp holder trained opening 27a of the reflector 27 engaging reference lugs 24a are each formed by one of the molded on the carrier sleeve 23 and covered by this angled cover flap 23b and thus against the infrared radiation generated by the filament 20c is shielded.
  • the Welding tabs 28a of the intermediate ring 28 are with these cover tabs 23b LASER welded ( Figure 4).
  • the intermediate ring 28 offers additional Adjustment options in the reference plane defined by the reference lugs 24a.
  • the plastic base part 24 also has an annular, conical groove 24b, in which a sealing ring 26 Rubber or silicone is arranged.
  • the sealing ring 26 is on the outside the reflector wall 27 and seals the lamp socket Opening 27a of the reflector.
  • the lamp in the reflector becomes the lamp with the lamp bulb 20 ahead, into the opening 27a of the reflector designed as a lamp holder introduced, the three reference lugs 24a each by a fit Grip recess in the edge of opening 27a.
  • the Lamp in the lamp holder turned up to a stop, so that the reflector wall 27 with a snug fit between the reference lugs 24a and Sealing ring 26 is arranged.
  • the pressure springs 23c are resilient the edge of the opening 27a of the reflector designed as a lamp holder on.
  • one of the three reference lugs 24a has a different shape than the two other reference lugs 24a.
  • the same of course also applies to the the reference lugs 24a matched recesses in the lamp holder trained opening 27a. Details of the pressure springs 23c are shown in Figures 7 and 8 respectively.
  • FIG. 5 a third embodiment of the cementless according to the invention socketed lamp pictured.
  • This lamp is like the lamp of the first Embodiment, one equipped with a metal / plastic base Single-filament halogen lamp for use in the reflector of a motor vehicle headlight.
  • This lamp has a glass one, essentially cylindrical lamp bulb 30 with a tightly squeezed lamp bulb end 30a, which is commonly referred to as pinch foot 30a.
  • Dome 30b of lamp bulb 30 has a black, light-absorbing Provide cover.
  • a light source that is parallel to the lamp bulb axis serves as the light source aligned filament 30c, the electrically conductive with from the Squeeze foot 30a led out power supplies 31 is connected.
  • the Fix ring 32 is one annular, metallic support sleeve 33 worn.
  • the carrier sleeve 33 has four integrally formed welding tabs 33a, which point or Are laser-welded.
  • the metal base also has a metallic support sleeve 33 with the electrical ones Connections 35 of the lamp provided plastic base part 34, in to which the carrier sleeve 33 is anchored.
  • the electrical connections 35 of the Lamps are welded to one of the power supply lines 31.
  • At the plastic base part 34 is an injection molded part into which the metallic support sleeve 33 is inserted.
  • the metallic support sleeve 33 is provided with a plurality of claws 33d, which change when the carrier sleeve is inserted 33 claw into the plastic base part 34 and thus an inseparable connection between the plastic base part 34 and the support sleeve 33.
  • the metallic carrier sleeve 33 is injected into a molded part 39 which made of a thermally more resilient plastic than the plastic base part 34 exists. In contrast to the first two exemplary embodiments does not engage the plastic base part 34 in the lamp socket Opening 37a of the reflector 37, but ends on the outside of the Reflector wall 37.
  • the inside diameter the sealing ring 36 is a snug fit on the conical Groove 34b matched and varies linearly with the height of the sealing ring.
  • the Plastic base part 34 is poured out with a potting compound that the Seals lamp base in the area of the power supply lines 31.
  • the three reference noses 39a, the sealing ring 36 and one below a reference nose 39a serve on the metallic support sleeve 33 molded pressure spring 33c for fastening the lamp in the lamp holder 37a of the reflector.
  • the lamp base and the lamp holder 37a form a bayonet catch.
  • the three reference lugs 39a each reach through a fitting recess in the edge of the opening 37a. Then the lamp in the lamp holder until it stops rotated so that the reflector wall 37 is clamped between the reference lugs 39a and the sealing ring 36 is arranged.
  • the pressure spring 33c resiliently lies on the edge of the opening designed as a lamp holder 37a of the reflector.
  • one of the three reference lugs 39a has another Shape than the other two reference lugs 39a. The same applies of course also for the cutouts in the opening 37a formed as a lamp holder. Details of the pressure spring 33c are shown in FIGS. 7 and 8, respectively.
  • FIG. 6 shows a fourth embodiment of the invention. Act here too it is a single-filament halogen lamp for installation in the reflector a motor vehicle headlight.
  • This lamp has a glass, essentially cylindrical lamp bulb 40 with a tightly squeezed Lamp bulb end 40a, commonly referred to as pinch foot 40a becomes.
  • the dome 40b of the lamp bulb 40 is covered with a black light-absorbing coating.
  • a parallel serves as the light source incandescent filament 40c aligned with the lamp bulb axis, which is electrically conductive with power leads 41 led out of the pinch foot 40a connected is.
  • the lamp bulb 40 is in one with its pinch base 40a metallic holder part 42 designed as a fixed ring.
  • the fix ring 42 is carried by an annular, metallic carrier sleeve 43.
  • the Carrier sleeve 43 has four integrally formed welding tabs 43a, which are connected to the fixing ring 42 are spot welded.
  • the lamp base also has a metallic support sleeve 43 with the electrical ones Connections 45 of the lamp provided plastic base part 44, in to which the carrier sleeve 43 is anchored.
  • the electrical connections 45 of the Lamps are welded to one of the power supply lines 41.
  • At the plastic base part 44 is an injection molded part into which the metallic carrier sleeve 43 is inserted.
  • the carrier sleeve 43 is with several molded barb 43d equipped, which when inserted into the Plastic base part 44 in recesses matched to the barbs 43d 44a hook non-detachably inside the plastic base part 44. Furthermore has the metallic carrier sleeve 43 three molded, from the carrier sleeve 43 angled reference lugs 43b. These reference lugs 43b are arranged equidistantly along a circumference and used for adjustment the incandescent filament 40c and for fastening the lamp in the reflector 47.
  • the plastic base part 44 has an annular, conical design Groove 44b in which a sealing ring 46 made of rubber or silicone is arranged.
  • the sealing ring 46 lies on the outside of the reflector wall 47 and seals the opening 47a designed as a lamp holder of the reflector.
  • the inner diameter of the sealing ring 46 is a perfect fit matched to the conical groove 44b and varies linearly with the sealing ring height.
  • the plastic base part 44 is with a potting compound poured out the lamp base in the area of the power leads 41 seals.
  • the three reference lugs 43b, the sealing ring 46 and one molded onto the metallic carrier sleeve 43 below a reference lug 43b Pressure spring 43c is used to fasten the lamp in the lamp holder 47a of the reflector.
  • the lamp base and the lamp holder 47a form a bayonet catch.
  • the lamp With the lamp bulb 40 first, into the lamp holder trained opening 47a of the reflector inserted, the three Reference lugs 43b each through a recess in the edge of the Reach through opening 47a. Then the lamp is in the lamp holder rotated to a stop so that the reflector wall 47 with Clamping fit between the reference lugs 43b and the sealing ring 46 is.
  • the pressure spring 43c resiliently lies on the edge of the lamp holder trained opening 47a of the reflector.
  • one of the three reference lugs 43b have a different shape than the other two reference lugs 43b. The same naturally also applies to those on the reference lugs 43b coordinated recesses in the opening designed as a lamp holder 47a. Details of the pressure spring 43c are shown in FIGS. 7 and 8.
  • this fourth exemplary embodiment in the area of the opening 47a completely on plastic parts dispensed to reduce the risk of the inside of the reflector wall 47 by evaporating the lamp parts made of plastic is tarnished.
  • the plastic reference lugs of the exemplary embodiments one to three are in this fourth embodiment replaced by the metallic reference lugs 43b.
  • Figures 7 and 8 show two different embodiments of the pressure spring 13c, 23c, 33c attached to the metallic carrier sleeve, 43c.
  • the embodiment of the pressure spring shown in FIG. 7 can be opened all four embodiments explained above are applied while the embodiment of the pressure springs shown in Figure 8 only can be used in the embodiments one to three.
  • the ring-shaped support sleeve 71 each has a flat, that is, a non-arched area 71a on which the ends 70a, 70b of the pressure spring 70 concerns.
  • the support sleeve 71 is anchored in the plastic base part 72.
  • the outwardly curved region 70c of the pressure spring 70 lies behind the installation of the lamp in the reflector on the edge of the lamp holder trained opening of the reflector.
  • Figure 8 shows the second embodiment of the pressure spring in a through the lamp base, perpendicular to the lamp axis and through the Pressure spring going cross-sectional plane.
  • the pressure spring 80 designed as an outwardly arched leaf spring.
  • the two ends 80a, 80b of the leaf spring 80 are each in a gap-like recess 82a, 82b between the metallic carrier sleeve 81 and the plastic base part 82 inserted.
  • the outwardly curved region 80c of the leaf spring 80 protrudes the outer wall of the annular support sleeve 81.
  • the leaf spring ends slide onto the curved area of the leaf spring 80 80a, 80b deeper into the gap-like recesses 82a, 82b.
  • Of the outward bulging area 80c of the pressure spring 80 lies after installation the lamp into the reflector on the edge of the lamp socket Opening of the reflector.
  • the pressure spring exists in all Examples from a spring steel.
  • FIGS. 9 to 11 show a fifth exemplary embodiment of the invention pictured.
  • the cementless according to the invention socket lamp is also a single filament halogen lamp, which are intended for use in a motor vehicle headlight is.
  • This lamp has a glass, essentially cylindrical Lamp bulb 50 with a tightly squeezed lamp bulb end 50a, which is referred to as pinch foot 50a.
  • the dome 50b of the lamp bulb 50 is covered with a black, light-absorbing coating.
  • the light source is a filament that is aligned parallel to the lamp bulb axis 50c, which are electrically conductive with led out of the squeezing foot 50a Power leads 51 is connected.
  • the lamp bulb 50 is with his Pinch foot 50a in a metallic holder part designed as a fixed ring 52 fixed.
  • the fixed ring 52 is a metallic intermediate ring 58th worn, which is equipped with three molded, angled welding tabs 58a is.
  • the intermediate ring 58 is in turn with a metallic carrier sleeve 53 LASER welded.
  • the The lamp base has the intermediate ring 58 and the metallic carrier sleeve 53 also one provided with the electrical connections 55 of the lamp Plastic base part 54 in which the carrier sleeve 53 is anchored.
  • the electrical connections 55 of the lamp are each with one of the power supply lines 51 welded.
  • the plastic base part 54 is around an injection molded part into which the metallic support sleeve 53 is injected.
  • the carrier sleeve 53 has three molded, equidistantly along a circumference arranged reference lugs 53a, for adjusting the filament 50c and for fastening the lamp in the reflector (not shown in FIG. 9) of the Headlights.
  • the reference lugs 53a are from the carrier sleeve 53 angled and lie in a common plane.
  • the welding tabs 58a of the intermediate ring 58 are laser-welded to these reference lugs 53a.
  • the intermediate ring 58 offers additional adjustment options in the reference plane defined by the reference lugs 53a.
  • the plastic base part 54 has an annular, conical design Groove 54b in which a sealing ring (not shown in Fig. 9) is made of rubber or silicone.
  • the sealing ring is on the outside the reflector wall and seals the lamp socket Opening of the reflector.
  • the inner diameter of the sealing ring is also in this embodiment fit to the conical Groove 54b matched and varies linearly with the height of the sealing ring.
  • the ends 90a, 90b of the leaf spring 90 lie on the inner wall the carrier sleeve 53 and in each case in one piece with the plastic base part 54 trained stop 59a, 59b, so that the leaf spring 90 clamping between these two stops designed as a bracket 59a, 59b is fixed.
  • the three reference lugs 53a, the sealing ring arranged in the groove 54b and the pressure spring 90 are used to fasten the lamp in the lamp holder of the reflector. Form the lamp base and the lamp holder a bayonet catch.
  • the Lamp With the lamp bulb 50 first, into the lamp socket Opening of the reflector inserted, the three reference lugs 53a reach through a cut-out in the edge of the opening. Then the lamp in the lamp holder up to a stop rotated so that the reflector wall with a clamp fit between the reference lugs 53a and the sealing ring is arranged, as is the case with fourth embodiment described and shown in Figure 6.
  • the pressure spring 90 resiliently lies on the edge of the lamp socket Opening of the reflector.
  • all three reference lugs 53a have one different shape. The same naturally also applies to those on the reference noses 53a coordinated recesses in the lamp socket Opening. Details of the pressure spring 90 are shown in FIG. 11 shown.
  • the pressure spring 90 is curved Leaf spring trained. It has two slightly curved ends 90a, 90b, which after its assembly on the inner wall of the annular carrier sleeve 53 concerns. To fix the leaf spring 90 also serve two parts with the plastic base part 54 made stops 59a, 59b to the butt ends 90a, 90b. The leaf spring 90 is thereby clamped between these stops 59a, 59b (Fig. 10) supported. It has a bulbous shape outward bulging section 90c, which after assembly of the Leaf spring 90 extends through the opening 53b in the carrier sleeve 53 and after installing the lamp in the headlight jammed on the formed as a lamp holder reflector opening.
  • the breakthrough 53b is shown in the plan view of FIG.
  • the arched outward Section 90c of leaf spring 90 is arched inward by two Sections 90d and 90e each with one of the leaf spring ends 90a and 90b connected.
  • the reference number 60 in FIG. 10 denotes the bushings for the power supply lines 51 of the lamp in the plastic base part 54.
  • the invention is not limited to the exemplary embodiments described in more detail above.
  • the lamp base according to the invention also on two-filament halogen lamps and on high-pressure discharge lamps, which are intended for use in motor vehicle headlights are applied.

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP96938966A 1996-01-11 1996-10-17 Kittlos gesockelte elektrische lampe Expired - Lifetime EP0815578B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19600714 1996-01-11
DE19600714 1996-01-11
PCT/DE1996/001982 WO1997025733A1 (de) 1996-01-11 1996-10-17 Kittlos gesockelte elektrische lampe

Publications (2)

Publication Number Publication Date
EP0815578A1 EP0815578A1 (de) 1998-01-07
EP0815578B1 true EP0815578B1 (de) 1999-03-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96938966A Expired - Lifetime EP0815578B1 (de) 1996-01-11 1996-10-17 Kittlos gesockelte elektrische lampe

Country Status (17)

Country Link
US (1) US5957569A (zh)
EP (1) EP0815578B1 (zh)
JP (1) JP3992292B2 (zh)
KR (1) KR100437557B1 (zh)
CN (2) CN1097283C (zh)
AR (1) AR004554A1 (zh)
AU (1) AU7619996A (zh)
BR (1) BR9607821A (zh)
CA (1) CA2215068C (zh)
CZ (1) CZ287883B6 (zh)
DE (2) DE19681219D2 (zh)
ES (1) ES2131967T3 (zh)
HU (1) HU220268B (zh)
MX (1) MX9706896A (zh)
PL (1) PL185304B1 (zh)
TW (1) TW334575B (zh)
WO (1) WO1997025733A1 (zh)

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DE19951203A1 (de) 1999-10-22 2001-04-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schweinwerferlampe
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US6713948B2 (en) * 1999-12-17 2004-03-30 Koninklijke Philips Electronics N.V. Lamp cap, assembly of lamp burner and lamp cap, and method of fastening a lamp
US6536929B1 (en) * 2000-08-23 2003-03-25 Forgacs Laszlo Incandescent lamp for use in a reflector
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CA2215068A1 (en) 1997-07-17
PL322115A1 (en) 1998-01-05
MX9706896A (es) 1997-11-29
KR19980702901A (ko) 1998-09-05
EP0815578A1 (de) 1998-01-07
HUP9800716A3 (en) 2000-09-28
TW334575B (en) 1998-06-21
JPH11502365A (ja) 1999-02-23
CN1178598A (zh) 1998-04-08
HU220268B (hu) 2001-11-28
CZ287883B6 (cs) 2001-03-14
US5957569A (en) 1999-09-28
CN1156867C (zh) 2004-07-07
AR004554A1 (es) 1998-12-16
HUP9800716A2 (hu) 1998-07-28
CN1097283C (zh) 2002-12-25
BR9607821A (pt) 1998-07-07
CN1314692A (zh) 2001-09-26
DE19681219D2 (de) 1998-06-18
CZ285097A3 (cs) 1998-06-17
WO1997025733A1 (de) 1997-07-17
ES2131967T3 (es) 1999-08-01
CA2215068C (en) 2004-12-28
DE59601558D1 (de) 1999-05-06
KR100437557B1 (ko) 2004-07-16
PL185304B1 (pl) 2003-04-30
JP3992292B2 (ja) 2007-10-17
AU7619996A (en) 1997-08-01

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