EP0088225B1 - Lamp socket for vehicle lights and headlamps - Google Patents

Lamp socket for vehicle lights and headlamps Download PDF

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Publication number
EP0088225B1
EP0088225B1 EP83100858A EP83100858A EP0088225B1 EP 0088225 B1 EP0088225 B1 EP 0088225B1 EP 83100858 A EP83100858 A EP 83100858A EP 83100858 A EP83100858 A EP 83100858A EP 0088225 B1 EP0088225 B1 EP 0088225B1
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EP
European Patent Office
Prior art keywords
socket
contact
base plate
arms
pairs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83100858A
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German (de)
French (fr)
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EP0088225A1 (en
Inventor
Richard Dunder
Diethard Schnelle
Anton Schulte
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
Westfaelische Metall Industrie KG Hueck and Co
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.)
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Publication date
Application filed by Hella KGaA Huek and Co, Westfaelische Metall Industrie KG Hueck and Co filed Critical Hella KGaA Huek and Co
Priority to AT83100858T priority Critical patent/ATE18831T1/en
Publication of EP0088225A1 publication Critical patent/EP0088225A1/en
Application granted granted Critical
Publication of EP0088225B1 publication Critical patent/EP0088225B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other

Definitions

  • the invention relates to a socket for accommodating so-called H2 light bulbs, which have at their socket-side end two diametrically opposite and in one plane contact flanges, in which recesses are made for locking in the socket,
  • the socket body consisting essentially of a heat-resistant, in the reflector of a vehicle headlight or a vehicle lamp usable base plate is attached to which two pairs of conductive metal arms are attached, each of which forms a tab connector at one end and at the other end by means of trained there, approximately right-angled from the rest of the pair of metal arms parallel contact arms the contact flanges of the incandescent lamp so clamped between them that they are both locked in place and the electrical lead to them is made, while attaching the metal arm pairs to the base plate each a z between the two ends lying section is used.
  • each pair of metal arms is made of two parts, which must also have different bending and spring properties.
  • the arms of the metal arm pairs which form the holding rear wall must be rigid in themselves so that the light bulb takes up a correct position in relation to the base plate, while the other arms of the metal arm pairs, which simultaneously form the power supply and press the contact flanges of the light bulbs against the fixed arms, are resilient must be elastic.
  • the two pairs of arms are each attached to the base plate by rivets. This riveting process is not only an additional work step, but the rivet attachment also creates the risk of a malfunction in the long term, namely through unintentional loosening.
  • the contact arm of each pair of contact arms which lies at the front in the direction of insertion, bears against a wall of the mounting base plate that is perpendicular to the direction of insertion.
  • a bending-stiffening notch can be introduced into the bending line between each of the contact arms located at the front and the adjoining section lying against the base plate. As a result, this contact arm largely loses its elasticity and gives the light bulb a safe position.
  • one contact arm of the two contact arm pairs is convexly bent toward the contact flange of the incandescent lamp, while the respective other contact arm of the two contact arm pairs at the level of the convex deflection is one in embossed the sheet and as a contact point for the Has contact flange serving contact flange.
  • This contact nipple gives a significantly higher specific contact pressure than the contact pressure, which in the event of a bulb change also simultaneously destroys an oxide skin that has formed.
  • the socket for the H2 light bulb 1 which can be inserted into a reflector (not shown), consists of the base plate 2 made of insulating material, preferably ceramic, and the two contact devices 3 and 4 made in one piece from spring band steel.
  • the H2 incandescent lamp is a halogen incandescent lamp which has two diametrically opposed contact flanges 5 and 6 which run in one plane at its socket-side end. These two contact flanges are provided with recesses 7 and 8, which serve to lock the light bulb in the contact devices 3 and 4. So that the incandescent lamp cannot be rotated by 180 °, the recess 8 is designed as a round hole and the recess 7 as an elongated hole that is open on one side. Accordingly, the projections 9 and 10 engaging in these recesses are also embodied in the contact devices 3 and 4.
  • the projection 9 is designed as a tongue bent at right angles from the spring plate, while the projection 10 is designed as a deep-drawn sleeve with a round cross section.
  • the two contact arms 12, 13 of the contact device 3 are angled approximately at right angles to the same side and form approximately parallel to one another of the two pairs of contact arms into which the two contact flanges 5, 6 of the incandescent lamp 1 are inserted in a clamping manner.
  • the contact arms 12 and 13 are made narrower than the adjoining sections 14 and 15 of the contact device. These wider sections 14 and 15 are inserted like a drawer into lateral grooves 16 and 17 of the base plate 2. These two grooves hold the sections 14 and 15 together, so that the tab 11 does not open and the contact arm 12 does not spring back.
  • the contact device 3 is held in the base plate 2 on the one hand by the lateral grooves 16 and 17 and on the other hand by a resilient nose 18 of the metal arm resting on the base plate 2, which snaps into the recesses 19 of the base plate 2 in a barb-like manner.
  • the contact arm 13 of the contact device bears against a rear wall 20 of the base plate 2, as a result of which it is supported at least towards the rear.
  • the bending point toward the section 15 is provided with an indentation 21 which substantially stiffens the bending point.
  • This contact arm essentially forms a rigid arm against which the contact flanges 5 and 6 of the incandescent lamp rest.
  • the contact arm 13 is provided with contact warts 22, which are introduced as small impressions in the strip material. These contact lugs are arranged at the level of a deflection 23 introduced convexly in the contact arm 12, so that the contact pressure is directed at this punctiform elevation. This results in a specifically higher contact pressure.

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  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

1. Socket for holding so-called H2 incandescent lamps (1), which comprises at their end nearest the socket two contact flanges (5, 6) which are situated diametrally opposite each other and are situated in a single plane and in which apertures (7, 8) are formed for fixing in the socket, the socket body comprising substantially a heat-resistant base plate which is insertable in the reflector of a vehicle headlamp or a vehicle light and on which there are secured two pairs of conductive metal arms, each of these pairs forming at one end a flat plug terminal (11) and clamping the contact flanges (5, 6) of the incandescent lamp (1) in such a manner between themselves at the other end, by means of contact arms (12, 13) which are constructed there and which are bent-over at approximately right angles from the remaining portion of the metal arm pair and are situated approximately parallel to one another, that on the one hand they are fixed in their position and on the other hand the line of electrical supply to them is established, whereas a section (14, 15) situated between the two said ends in each case serves to secure the pairs of metal arms to the base plate (2), characterised by the following features : a) each pair of metal arms (12, 13) and the associated flat plug terminal (11) are cut out and bent in one piece from a spring strip, b) the spring strip is doubled by folding, the end comprising the fold forming the flat plug (11), c) the two contact arms (12, 13) are of narrower construction than the adjoining section (14, 15) serving for securing purposes, d) the sections (14, 15) of the two pairs of metal arms which serve for securing purposes are introduced like slides into lateral grooves (16, 17) of the socket base plate (2) in such a manner that the edge regions of the sections (14, 15) doubled by folding and used for securing are held together by the lateral grooves (16, 17), e) the metal arm abutting on the socket base plate (2) comprises an elastic nose (18) which engages with a catch action in an aperture (19) of the socket base plate (2).

Description

Die Erfindung betrifft eine Fassung zur Aufnahme von sogenannten H2-Glühlampen, die an ihrem fassungsseitigen Ende zwei diametral gegenüberliegende und in einer Ebene verlaufende Kontaktflansche aufweisen, in die Ausnehmungen zur Arretierung in der Fassung eingebracht sind, wobei der Fassungskörper im wesentlichen aus einer wärmebeständigen, in den Reflektor eines Fahrzeugscheinwerfers oder einer Fahrzeugleuchte einsetzbaren Grundplatte besteht, an der zwei Paar leitende Metallarme befestigt sind, von denen jedes an seinem einen Ende einen Flachsteckeranschluß bildet und an seinem anderen Ende mittels dort ausgebildeter, vom übrigen Teil des Metallarmpaares in etwa rechtwinklig abgebogener und annähernd parallel zueinander verlaufender Kontaktarme die Kontaktflansche der Glühlampe so zwischen sich einklemmt, daß sie sowohl in ihrer Lage arretiert sind als auch die elektrische Zuleitung zu ihnen hergestellt ist, während der Befestigung der Metallarmpaare an der Grundplatte jeweils ein zwischen den beiden genannten Enden liegender Abschnitt dient.The invention relates to a socket for accommodating so-called H2 light bulbs, which have at their socket-side end two diametrically opposite and in one plane contact flanges, in which recesses are made for locking in the socket, the socket body consisting essentially of a heat-resistant, in the reflector of a vehicle headlight or a vehicle lamp usable base plate is attached to which two pairs of conductive metal arms are attached, each of which forms a tab connector at one end and at the other end by means of trained there, approximately right-angled from the rest of the pair of metal arms parallel contact arms the contact flanges of the incandescent lamp so clamped between them that they are both locked in place and the electrical lead to them is made, while attaching the metal arm pairs to the base plate each a z between the two ends lying section is used.

Eine derartige, in der DE-A-1 539 394 beschriebene Fassung hat den Nachteil, daß jedes Metallarmpaar aus zwei Teilen hergestellt ist, die darüber hinaus noch unterschiedliche Biege- und Federeigenschaften haben müssen. Die die haltende Rückwand bildenden Arme der Metallarmpaare müssen in sich steif sein, so daß die Glühlampe eine korrekte Position zu der Grundplatte einnimmt, während die anderen Arme der Metallarmpaare, welche gleichzeitig die Stromzufuhr bilden und die Kontaktflansche der Glühlampen gegen die feststehenden Arme pressen, federnd elastisch ausgeführt sein müssen. Darüber hinaus sind die beiden Armpaare jedes für sich an der Grundplatte durch Nieten befestigt. Dieser Nietvorgang ist nicht nur ein zusätzlicher Arbeitsgang, sondern die Nietbefestigung bildet auch auf die Dauer die Gefahr einer Funktionsstörung, nämlich durch ein unbeabsichtigtes Lockern.Such a version, described in DE-A-1 539 394, has the disadvantage that each pair of metal arms is made of two parts, which must also have different bending and spring properties. The arms of the metal arm pairs which form the holding rear wall must be rigid in themselves so that the light bulb takes up a correct position in relation to the base plate, while the other arms of the metal arm pairs, which simultaneously form the power supply and press the contact flanges of the light bulbs against the fixed arms, are resilient must be elastic. In addition, the two pairs of arms are each attached to the base plate by rivets. This riveting process is not only an additional work step, but the rivet attachment also creates the risk of a malfunction in the long term, namely through unintentional loosening.

Aufgabe der Erfindung ist es, die Zahl der Einzelteile der Fassung zu verringern, die einzelnen Teile in der Konstruktion und in ihrer Montage so zu vereinfachen, daß stets ein guter Kontaktdruck gewahrt ist und trotzdem ein leichtes Einsetzen der Glühlampe ermöglicht wird. Die Lösung dieser Aufgabe wird durch die Anwendung folgender Merkmale erreicht :

  • a) jedes Paar der Metallarme (12, 13) und der dazugehörige Flachsteckeranschluß (11) sind einteilig aus einem Federband ausgeschnitten und gebogen,
  • b) das Federband ist durch Falten gedoppelt, wobei das den Falz aufweisende Ende den Flachstecker (11) bildet,
  • c) die beiden Kontaktarme (12,13) sind schmaler ausgeführt als der sich daran anschließende, der Befestigung dienende Abschnitt (14, 15).
  • d) die der Befestigung dienenden Abschnitte (14, 15) beider Metallarmpaare sind schubladenartig in seitliche Nuten (16, 17) der Fassungsgrundplatte (2) eingeschoben, derart, daß die Randbereiche der durch Falten gedoppelten, der Befestigung dienenden Abschnitte (14, 15) von den seitlichen Nuten (16, 17) zusammengehalten werden,
  • e) der an der Fassungsgrundplatte (2) anliegende Metallarm weist eine federnde Nase (18) auf, die in eine Ausnehmung (19) der Fassungsgrundplatte (2) widerhakenartig einrastet.
The object of the invention is to reduce the number of individual parts of the socket, to simplify the individual parts in the construction and in their assembly so that a good contact pressure is always maintained and nevertheless an easy insertion of the incandescent lamp is made possible. The solution to this problem is achieved by using the following features:
  • a) each pair of the metal arms (12, 13) and the associated flat plug connection (11) are cut in one piece from a spring band and bent,
  • b) the spring band is doubled by folding, the end having the fold forming the tab connector (11),
  • c) the two contact arms (12, 13) are designed to be narrower than the adjoining section (14, 15) which serves for fastening.
  • d) the fastening portions (14, 15) of both pairs of metal arms are inserted in a drawer-like manner in lateral grooves (16, 17) of the mounting base plate (2) such that the edge regions of the fastening portions (14, 15) doubled by folds are held together by the lateral grooves (16, 17),
  • e) the metal arm resting on the base plate (2) has a resilient nose (18) which snaps into a recess (19) in the base plate (2) like a barb.

Das seitliche Umfassen von Randbereichen der durch Falten gedoppelten und nicht abgewinkelten Abschnitte der Kontaktarme bringt den besonderen Vorteil, daß die durch Materialverdoppelung ihre vorgeschriebene Stärke erhaltenden Flachstecker nicht auffedern. Dieses erleichtert das Aufschieben der Flachsteckhülsen und bringt darüber hinaus eine Versteifung des federnden Armes eines jeden der beiden Kontaktarmpaare.The lateral encirclement of edge regions of the sections of the contact arms which are doubled and not angled by folding brings the particular advantage that the tabs which obtain their prescribed strength by doubling the material do not spring open. This makes it easier to slide on the flat receptacles and also stiffens the resilient arm of each of the two pairs of contact arms.

Bei einer vorteilhaften Ausgestaltung der Erfindung liegt der in Einschubrichtung vorn liegende Kontaktarm jedes Kontaktarmpaares an einer rechtwinklig zur Einschubrichtung verlaufenden Wandung der Fassungsgrundplatte an. Dieses gibt jeweils dem einen der beiden Kontaktarme eine Unterstützung gegen ein ungewolltes Ausbiegen und somit der Glühlampe eine sichere Position. Anstelle dieser Stützwand oder auch zusätzlich kann in die Biegelinie zwischen jedem der vorn liegenden Kontaktarme und dem anschließenden, an der Grundplatte anliegenden Abschnitt eine biegeversteifende Einkerbung eingebracht sein. Dadurch verliert dieser Kontaktarm weitestgehend seine Elastizität und gibt der Glühlampe eine sichere Position.In an advantageous embodiment of the invention, the contact arm of each pair of contact arms, which lies at the front in the direction of insertion, bears against a wall of the mounting base plate that is perpendicular to the direction of insertion. This gives one of the two contact arms support against unwanted bending out and thus the light bulb into a safe position. Instead of this support wall or additionally, a bending-stiffening notch can be introduced into the bending line between each of the contact arms located at the front and the adjoining section lying against the base plate. As a result, this contact arm largely loses its elasticity and gives the light bulb a safe position.

Es ist bekannt, bei den sogenannten H2-Glühlampenfassungen zwecks Arretierung an jeweils einem Kontaktarm der beiden Kontaktarmpaare Vorsprünge anzuordnen, die in die Ausnehmungen der Kontaktflansche der Glühlampe eingreifen. Einer dieser Vorsprünge ist im Querschnitt rechteckig und aus dem Kontaktflansch herausgebogen, während der andere in seinem Querschnitt rund ist und als nietartiger Bolzen eingesetzt ist. Nach einem weiteren Merkmal der Erfindung ist der im Querschnitt runde Vorsprung als eine aus dem Kontaktarm tiefgezogene Hülse ausgebildet. Damit entfällt ein weiteres Bauteil, nämlich der nietartige Kontakt und seine umständliche Befestigung.It is known in the case of the so-called H2 light bulb sockets to arrange projections on each contact arm of the two contact arm pairs for the purpose of locking, said projections engaging in the recesses of the contact flanges of the light bulb. One of these projections is rectangular in cross section and bent out of the contact flange, while the other is round in cross section and is used as a rivet-like bolt. According to a further feature of the invention, the projection, which is round in cross section, is designed as a sleeve deep-drawn from the contact arm. This eliminates another component, namely the rivet-like contact and its complicated attachment.

Um die Kontaktierung zwischen der Fassung und der Glühlampe sicherer zu gestalten, ist nach einem weiteren vorteilhaften Merkmal der Erfindung jeweils ein Kontaktarm der beiden Kontaktarmpaare zum Kontaktflansch der Glühlampe hin konvex durchgebogen, während der jeweilige andere Kontaktarm der beiden Kontaktarmpaare in Höhe der konvexen Durchbiegung eine in das Blech eingeprägte und als Anlagepunkt für die Kontaktflansche dienende Kontaktwarze aufweist. Durch diese Kontaktwarze ist ein wesentlich höherer spezifischer Anpreßdruck als Kontaktdruck gegeben, der im Falle eines Glühlampenwechsels auch gleichzeitig für eine Zerstörung einer sich gebildeten Oxydhaut sorgt.In order to make the contact between the socket and the incandescent lamp more secure, according to a further advantageous feature of the invention, one contact arm of the two contact arm pairs is convexly bent toward the contact flange of the incandescent lamp, while the respective other contact arm of the two contact arm pairs at the level of the convex deflection is one in embossed the sheet and as a contact point for the Has contact flange serving contact flange. This contact nipple gives a significantly higher specific contact pressure than the contact pressure, which in the event of a bulb change also simultaneously destroys an oxide skin that has formed.

Die Zeichnung veranschaulicht ein vorteilhaftes Ausführungsbeispiel der Erfindung, und zwar zeigen

  • Figur 1 eine perspektivische Ansicht der Fassung und Glühlampe,
  • Figur 2 einen Schnitt nach der Linie A-A durch die Fassung ohne Glühlampe, und
  • Figur 3 einen Schnitt nach der Linie B-B durch die Fassung ohne Glühlampe.
The drawing illustrates an advantageous embodiment of the invention, namely show
  • FIG. 1 shows a perspective view of the holder and incandescent lamp,
  • Figure 2 shows a section along the line AA through the socket without incandescent lamp, and
  • 3 shows a section along the line BB through the socket without an incandescent lamp.

Die in einen Reflektor (nicht dargestellt) einsetzbare Fassung für die H2-Glühlampe 1 besteht aus der aus Isolierstoff, vorzugsweise Keramik, hergestellten Grundplatte 2 und den beiden aus Federbandstahl einteilig hergestellten Kontaktvorrichtungen 3 und 4.The socket for the H2 light bulb 1, which can be inserted into a reflector (not shown), consists of the base plate 2 made of insulating material, preferably ceramic, and the two contact devices 3 and 4 made in one piece from spring band steel.

Die H2-Glühlampe ist eine Halogen-Glühlampe, die an ihrem fassungsseitigen Ende zwei diametral gegenüberliegende und in einer Ebene verlaufende Kontaktflansche 5 und 6 aufweist. Diese beiden Kontaktflansche sind mit Ausnehmungen 7 und 8 versehen, die zur Arretierung der Glühlampe in den Kontaktvorrichtungen 3 und 4 dienen. Damit die Glühlampe nicht um 180° verdreht eingesetzt werden kann, ist die Ausnehmung 8 als rundes Loch und die Ausnehmung 7 als einseitig offenes Langloch ausgebildet. Dementsprechend sind auch die in diese Ausnehmungen eingreifenden Vorsprünge 9 und 10 in den Kontaktvorrichtungen 3 und 4 ausgeführt. Der Vorsprung 9 ist als eine aus dem Federblech rechtwinklig abgebogene Zunge ausgeführt, während der Vorsprung 10 als eine tiefgezogene Hülse mit einem runden Querschnitt ausgeführt ist. Allein durch diese beiden Merkmale unterscheiden sich die Kontaktvorrichtungen 3 und 4, so daß im folgenden nur noch auf eine dieser beiden Kontaktvorrichtungen einzugehen ist. Die Kontaktvorrichtung 3 ist aus einem Stahlfederband ausgestanzt und durch Falten gedoppelt. Das den Falz aufweisende Ende der Kontaktvorrichtung ist als Flachstecker 11 ausgebildet. Durch die Doppelung hat der Flachstecker die genormte Stärke erhalten, jedoch ist den beiden Kontaktarmen 12, 13 die durch die geringe Materialstärke gegebene Elastizität geblieben. Die beiden Kontaktarme 12, 13 der Kontaktvorrichtung 3 sind in etwa rechtwinklig zur gleichen Seite hin abgewinkelt und bilden in etwa parallel zueinander verlaufend eines der beiden Kontaktarmpaare, in die die beiden Kontaktflansche 5, 6 der Glühlampe 1 klemmend eingeschoben werden. Die Kontaktarme 12 und 13 sind schmaler ausgeführt als die sich daran anschließenden Abschnitte 14 und 15 der Kontaktvorrichtung. Diese breiter ausgeführten Abschnitte 14 und 15 sind schubladenartig in seitliche Nuten 16 und 17 der Grundplatte 2 eingeschoben. Diese beiden Nuten halten die Abschnitte 14 und 15 zusammen, so daß der Flachstecker 11 nicht auf- und der Kontaktarm 12 nicht rückfedert. Gehalten wird die Kontaktvorrichtung 3 in der Grundplatte 2 einmal durch die seitlichen Nuten 16 und 17 und zum anderen durch eine federnde Nase 18 des an der Fassungsgrundplatte 2 anliegenden Metallarms, die in Freimachungen 19 der Grundplatte 2 widerhakenartig einrastet.The H2 incandescent lamp is a halogen incandescent lamp which has two diametrically opposed contact flanges 5 and 6 which run in one plane at its socket-side end. These two contact flanges are provided with recesses 7 and 8, which serve to lock the light bulb in the contact devices 3 and 4. So that the incandescent lamp cannot be rotated by 180 °, the recess 8 is designed as a round hole and the recess 7 as an elongated hole that is open on one side. Accordingly, the projections 9 and 10 engaging in these recesses are also embodied in the contact devices 3 and 4. The projection 9 is designed as a tongue bent at right angles from the spring plate, while the projection 10 is designed as a deep-drawn sleeve with a round cross section. These two features alone distinguish the contact devices 3 and 4, so that only one of these two contact devices has to be dealt with below. The contact device 3 is punched out of a steel spring band and doubled by folding. The end of the contact device having the fold is designed as a flat plug 11. Due to the duplication, the flat connector has received the standardized thickness, but the two contact arms 12, 13 have retained the elasticity given by the low material thickness. The two contact arms 12, 13 of the contact device 3 are angled approximately at right angles to the same side and form approximately parallel to one another of the two pairs of contact arms into which the two contact flanges 5, 6 of the incandescent lamp 1 are inserted in a clamping manner. The contact arms 12 and 13 are made narrower than the adjoining sections 14 and 15 of the contact device. These wider sections 14 and 15 are inserted like a drawer into lateral grooves 16 and 17 of the base plate 2. These two grooves hold the sections 14 and 15 together, so that the tab 11 does not open and the contact arm 12 does not spring back. The contact device 3 is held in the base plate 2 on the one hand by the lateral grooves 16 and 17 and on the other hand by a resilient nose 18 of the metal arm resting on the base plate 2, which snaps into the recesses 19 of the base plate 2 in a barb-like manner.

Der Kontaktarm 13 der Kontaktvorrichtung liegt an einer Rückwandung 20 der Grundplatte 2 an, wodurch er zumindest nach hinten hin abgestützt ist. Um den Kontaktarm 13 weiterhin zu versteifen, ist die Biegestelle zum Abschnitt 15 hin mit einer Einprägung 21 versehen, welche die Biegestelle wesentlich versteift. Damit bildet dieser Kontaktarm im wesentlichen einen starren Arm, an dem die Kontaktflansche 5 und 6 der Glühlampe anliegen. Um die Kontaktsicherheit zu erhöhen, ist der Kontaktarm 13 mit Kontaktwarzen 22 versehen, die als kleine Einprägungen in das Bandmaterial eingebracht sind. Diese Kontaktwarzen sind in Höhe einer konvex im Kontaktarm 12 eingebrachten Durchbiegung 23 angeordnet, so daß der Kontaktdruck auf diese punktförmige Erhöhung gerichtet ist. Hierdurch ergibt sich ein spezifisch höherer Kontaktdruck.The contact arm 13 of the contact device bears against a rear wall 20 of the base plate 2, as a result of which it is supported at least towards the rear. In order to further stiffen the contact arm 13, the bending point toward the section 15 is provided with an indentation 21 which substantially stiffens the bending point. This contact arm essentially forms a rigid arm against which the contact flanges 5 and 6 of the incandescent lamp rest. In order to increase the contact reliability, the contact arm 13 is provided with contact warts 22, which are introduced as small impressions in the strip material. These contact lugs are arranged at the level of a deflection 23 introduced convexly in the contact arm 12, so that the contact pressure is directed at this punctiform elevation. This results in a specifically higher contact pressure.

Claims (5)

1. Socket for holding so-called H2 incandescent lamps (1), which comprise at their end nearest the socket two contact flanges (5, 6) which are situated diametrally opposite each other and are situated in a single plane and in which apertures (7, 8) are formed for fixing in the socket, the socket body comprising substantially a heat-resistant base plate which is insertable in the reflector of a vehicle headlamp or a vehicle light and on which there are secured two pairs of conductive metal arms, each of these pairs forming at one end a flat plug terminal (11) and clamping the contact flanges (5, 6) of the incandescent lamp (1) in such a manner between themselves at the other end, by means of contact arms (12, 13) which are constructed there and which are bent-over at approximately right angles from the remaining portion of the metal arm pair and are situated approximately parallel to one another, that on the one hand they are fixed in their position and on the other hand the line of electrical supply to them is established, whereas a section (14, 15) situated between the two said ends in each case serves to secure the pairs of metal arms to the base plate (2), characterised by the following features :
a) each pair of metal arms (12, 13) and the associated flat plug terminal (11) are cut out and bent in one piece from a spring strip,
b) the spring strip is doubled by folding, the end comprising the fold forming the flat plug (11),
c) the two contact arms (12, 13) are of narrower construction than the adjoining section (14, 15) serving for securing purposes,
d) the sections (14, 15) of the two pairs of metal arms which serve for securing purposes are introduced like slides into lateral grooves (16, 17) of the socket base plate (2) in such a manner that the edge regions of the sections (14, 15) doubled by folding and used for securing are held together by the lateral grooves (16, 17),
e) the metal arm abutting on the socket base plate (2) comprises an elastic nose (18) which engages with a catch action in an aperture (19) of the socket base plate (2).
2. Socket according to claim 1, characterised in that contact arm (13) of each pair of metal arms which is at the front in the slide-in direction abuts on a wall (20) of the socket base plate (2), said wall extending at right angles to the slide-in direction.
3. Socket according to claim 1 or 2, characterised in that an indentation (21) improving bending resistance is formed in the line of bend between each of the front contact arms (13) and the adjoining section abutting on the base plate (2).
4. Socket according to one of the preceding claims, wherein one of the projections which engage in the apertures of the incandescent lamp flanges to fix the incandescent lamp is rectangular in cross-section, and the other is made round in cross-section, and the rectangular projection is constructed as a tongue bent out from one contact arm, characterised in that the round projection (10) is constructed as a sleeve deep- drawn from the contact arm.
5. Socket according to one of the preceding claims, characterised in that one contact arm (12) in each case of the pairs of contact arms is curved convexly towards the base flange (5, 6) of the incandescent lamp, and the other contact arm (13) in each case comprises at the height of the convex curve (23) a contact stud (22) which is formed by pressing in the metal plate and which serves as an abutment point for the base flanges (5, 6).
EP83100858A 1982-03-05 1983-01-29 Lamp socket for vehicle lights and headlamps Expired EP0088225B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83100858T ATE18831T1 (en) 1982-03-05 1983-01-29 BULB SOCKET FOR VEHICLE LIGHTS AND HEADLIGHTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3207956 1982-03-05
DE3207956A DE3207956C2 (en) 1982-03-05 1982-03-05 Incandescent lamp holder for vehicle lights and headlights

Publications (2)

Publication Number Publication Date
EP0088225A1 EP0088225A1 (en) 1983-09-14
EP0088225B1 true EP0088225B1 (en) 1986-03-26

Family

ID=6157412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100858A Expired EP0088225B1 (en) 1982-03-05 1983-01-29 Lamp socket for vehicle lights and headlamps

Country Status (3)

Country Link
EP (1) EP0088225B1 (en)
AT (1) ATE18831T1 (en)
DE (1) DE3207956C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005008692B4 (en) 2005-02-25 2018-07-26 Bayerische Motoren Werke Aktiengesellschaft vehicle light

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090769A (en) * 1977-05-20 1978-05-23 Arnold Damsky Plug-in electrical receptacle extender

Also Published As

Publication number Publication date
DE3207956A1 (en) 1983-09-15
DE3207956C2 (en) 1985-04-11
ATE18831T1 (en) 1986-04-15
EP0088225A1 (en) 1983-09-14

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