EP0871266B1 - Lamp socket - Google Patents

Lamp socket Download PDF

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Publication number
EP0871266B1
EP0871266B1 EP98104982A EP98104982A EP0871266B1 EP 0871266 B1 EP0871266 B1 EP 0871266B1 EP 98104982 A EP98104982 A EP 98104982A EP 98104982 A EP98104982 A EP 98104982A EP 0871266 B1 EP0871266 B1 EP 0871266B1
Authority
EP
European Patent Office
Prior art keywords
threaded ring
contact
lamp socket
lateral contact
socket
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
EP98104982A
Other languages
German (de)
French (fr)
Other versions
EP0871266A2 (en
EP0871266A3 (en
Inventor
Dieter Dipl.-Ing. Henrici
Karl-Wilhelm Vogt
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.)
BJB GmbH and Co KG
Original Assignee
BJB GmbH and Co KG
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 BJB GmbH and Co KG filed Critical BJB GmbH and Co KG
Publication of EP0871266A2 publication Critical patent/EP0871266A2/en
Publication of EP0871266A3 publication Critical patent/EP0871266A3/en
Application granted granted Critical
Publication of EP0871266B1 publication Critical patent/EP0871266B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01R33/22—Two-pole devices for screw type base, e.g. for lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end

Definitions

  • the invention relates to a lamp holder according to the preamble of claim 1.
  • lamp holder of this type is in screw-in threaded ring advantageous, because he is in the provided in the socket body Thread finds a secure hold and when screwing in heavy bulbs appearing in the socket Forces optimally distributed and the lamp well centered.
  • the side contact is from a two-armed Bracket formed, the screwed lamp relatively contacted close to the base of the frame. At least he is if the lamp is not screwed in from the threaded ring electrically isolated. According to a new regulation this is also the lamp for so-called E-40 sockets attacking metallic threads of the socket live his.
  • FIG. 7 shows a similar lamp holder DE 32 13 964 A.
  • the side contact is outside the Threaded ring for direct contact with the thread arranged the lamp itself.
  • the state of the art also includes DE 97 16 649 U.
  • the threaded ring without screwing inserted into the socket body.
  • the side contact is extended to the threaded ring and contacted with one end section the outside of the Threaded ring.
  • the contact is made by means of clamping the side contact through the threaded ring against a smooth-walled lower part of an inner wall of the Version.
  • a lamp holder with a Pot-shaped riveted to the base of the frame Threaded sleeve is also known.
  • the threaded sleeve extends axially Length as opposed to a threaded ring to the socket body bottom and therefore requires relatively a lot of material. Since they are essentially only on the base of the frame is attached, it can be screwed in warp the lamp, causing an oblique or The lamp may skew.
  • the threaded sleeve against the center contact can Fastening the threaded sleeve to the base of the frame body loosen. This also leads to a wobble or The lamp shakes in the socket.
  • the invention solves this problem with the features of claim 1 and is therefore characterized in that that the side contact deflected by the threaded ring against the inner surface the lamp holder is extended towards the threaded ring and that the side contact is substantially L-shaped Strip is formed, the long L-leg held in a groove which extends from the inner surface of the socket body is and essentially in the longitudinal direction of the frame runs and the long L-leg with one end section the outside of the threaded ring under spring tension contacted.
  • the principle of the invention is thus essentially based on the side contact up to the threaded ring lead and an electrical contact between side contact and manufacture threaded ring. This happens in that the threaded ring when screwing in with its Lateral surface against the inner surface of the Frame body deflects and the preloaded contact good conductivity under permanent spring tension on the threaded ring is applied.
  • the lamp socket designated in its entirety with 10 initially consists of a socket body 11. This is cup-shaped with a socket body bottom 12 and a surrounding frame body wall 13. In the context of the invention is mainly to a version the size E 40. Especially get into it heavy bulbs or those with high ignition voltages for use.
  • the lamps are included screwed its base into a threaded ring 14, the previously screwed into the socket body 11 itself was attached.
  • a socket thread 16 is arranged in the inner surface 15 of the socket body wall 13 in the inner surface 15 of the socket body wall 13.
  • the screwed lamp not shown, contacts first make a center contact with their base center 17.
  • This extended End section 22 contacts the outside 23 of the Thread ring 14. The latter in turn contacts the Lamp, causing the circuit to be closed by the lamp is. Through this type of contacting the Threaded ring 14 live.
  • the electrical conductors are from the outside of the socket 10 forth in the socket body bottom 12 out. There are the stripped wire ends recorded in screw terminals 24 with which side contact 20 on the one hand and center contact 17 on the other are connected.
  • the side contact 20 is by a compression spring 25 additionally against the outside 23 of the threaded ring 14 pressed.
  • This compression spring 25 is essentially V-shaped formed with a central portion 26, the on the inner surface 15 of the socket body wall 13 supports and both ends of the side contact 20 are led.
  • the compression spring 25 is attached to the side contact 20. This attachment is for example achieved that a punched out of the side contact 20 Tab 28 around a portion of compression spring 25 is bent around.
  • the free end 29 of the compression spring 25 is close to that free end portion 22 of the side contact 20 only on.
  • the free end portion 22 of the side contact 20 is bent away from the central axis A and forms a sliding slope 30 for the threaded ring 14.
  • the threaded ring 14 leads when screwed in Side contact 20 automatically to the outside, its Return spring force is built up or reinforced.
  • the free one is also expedient End 29 of the compression spring 25 from the socket axis A and thus bent away from the side contact to the outside, so that the end portion 22 makes excellent contact.
  • Threaded ring 14 On an annular end face 31 of the mouth side of the Threaded ring 14 are circumferentially distributed several driver cams 32 arranged, the screwing of the threaded ring 14 facilitate in the socket thread 16. She offer a screwing tool, not shown, when screwing in each to the ring face 31 of the threaded ring 14 essentially perpendicular attack surfaces 33. Bid in the opposite direction the drive cams designed as gable-like forms 32 only an inclined surface 34 to the tool who does not find the tool and therefore the The ring nut cannot be turned back unintentionally.
  • Fig. 2 shows a lamp holder 10 with screwless Terminals 36 on side contact 20 and center contact 17.
  • a compression spring 25 attached to the bottom of the socket body 12 near end 35 compared to that shown in FIG. 1
  • embodiment is extended.
  • the screwless terminal 36 becomes essentially formed by a spring tongue 41, which from the extended Cut 35 end of the compression spring 25 and is molded out of their level.
  • the regarding the Drawing of electrical conductors to be inserted from below encounters the spring tongue 41 engaging in its movement path B. and moves it at least sideways out of the trajectory out. In this case, 41 are restoring forces from the spring tongue exercised, the head against the side contact Press 20 and thus the electrical contact as well as ensure the mechanical fixation.
  • an insertion limit stop 42 is provided.
  • the attachment of the side contact 20 with the extended compression spring 25 in the base 12 takes place in such a way that a at the bottom end 21 of the Side contact 20 arranged web 43 in a pocket 44 engages in the socket body base 12.
  • One from the Compression spring 25 punched out barb-like spring tongue 45 engages behind a recess 46 in the Socket body wall 13.
  • the web 43 and the spring tongue 45 prevent axial displacement in this way of the side contact 20 in the socket body 11.
  • the center contact 17 is also in accordance with that in FIG. 2 shown embodiment attached a spring member 37, that of the extended compression spring 25 on the side contact 20 corresponds.
  • the spring member 37 is below Contacting area 38 of the center contact 17 out and is formed there as a leaf spring 39, which previously described coil spring 19 replaced.
  • the attachment side End 40 of the spring member 37 also acts the formation of the connection as screwless Terminal 36 with, the spring tongue 41 in analog Is punched out of the spring member 37.
  • the side contact 20 or the center contact 17 are preferably made of a good electrically conductive Made of material such as copper or brass.
  • the Compression spring 25 and spring member 37 are preferred from a heat-resistant and permanent spring force guaranteeing material, such as made of a chrome-nickel alloy.

Description

Die Erfindung bezieht sich auf eine Lampenfassung nach dem Oberbegriff des Anspruchs 1.The invention relates to a lamp holder according to the preamble of claim 1.

Bei einer von der Anmelderin vorbenutzten, druckschriftlich nicht belegbaren, Lampenfassung dieser Art, von der die vorliegende Erfindung ausgeht, ist der in den Fassungskörper einschraubbare Gewindering vorteilhaft, weil er in dem im Fassungskörper vorgesehenen Gewinde einen sicheren Halt findet und die beim Eindrehen schwerer Leuchtmittel in die Fassung auftretenden Kräfte optimal verteilt und das Leuchtmittel gut zentriert. Der Seitenkontakt ist von einem zweiarmigen Bügel gebildet, der die eingeschraubte Lampe relativ nahe am Fassungskörperboden kontaktiert. Er ist zumindest bei nicht eingeschraubter Lampe vom Gewindering elektrisch isoliert. Nach einer neuen Vorschrift muß auch bei sogenannten E-40 Fassungen das die Lampe angreifende metallische Gewinde der Fassung stromführend sein.In printed form for one previously used by the applicant unassignable, lamp holder of this type, from which the present invention is based is in screw-in threaded ring advantageous, because he is in the provided in the socket body Thread finds a secure hold and when screwing in heavy bulbs appearing in the socket Forces optimally distributed and the lamp well centered. The side contact is from a two-armed Bracket formed, the screwed lamp relatively contacted close to the base of the frame. At least he is if the lamp is not screwed in from the threaded ring electrically isolated. According to a new regulation this is also the lamp for so-called E-40 sockets attacking metallic threads of the socket live his.

Eine ähnliche Lampenfassung zeigt auch Fig. 7 der DE 32 13 964 A. Der Seitenkontakt ist außerhalb des Gewinderinges für die direkte Kontaktierung des Gewindes der Lampe selbst angeordnet.7 shows a similar lamp holder DE 32 13 964 A. The side contact is outside the Threaded ring for direct contact with the thread arranged the lamp itself.

Zum Stand der Technik zählt ferner die DE 97 16 649 U. Hier ist der Gewindering ohne Verschraubung in den Fassungskörper eingesetzt. der Seitenkontakt ist zum Gewindering hin verlängert und kontaktiert mit einem Endabschnitt die Außenseite des Gewinderinges. Die Kontaktierung erfolgt mittels Klemmung des Seitenkontaktes durch den Gewindering gegen einen glattwandigen unteren Teil einer Innenwand der Fassung.The state of the art also includes DE 97 16 649 U. Here is the threaded ring without screwing inserted into the socket body. the side contact is extended to the threaded ring and contacted with one end section the outside of the Threaded ring. The contact is made by means of clamping the side contact through the threaded ring against a smooth-walled lower part of an inner wall of the Version.

Im Stand der Technik sind außerdem Lampenfassungen bekannt, bei denen ein Gewindering nicht in den Fassungskörper geschraubt wird, sondern mittels Schrauben am Fassungskörper befestigt ist. Durch diese Schraubverbindung wird auch der elektrische Kontakt zwischen Gewindering und Seitenkontakt hergestellt. Bei einem solchen Gewindering werden die beim Einschrauben des Leuchtmittels auftretenden Kräfte jedoch nicht zentrisch verteilt, da der Gewindering nur in zwei einander gegenüberliegenden Flanschbereichen vom Fassungskörper unterstützt ist. Somit ist keine optimale Befestigung des Gewinderings im Fassungskörper erreicht. Außerdem ist eine Montage durch Schrauben umständlich und bedingt wegen der größeren Zahl von Einzelteilen zumindest einen größeren Aufwand bei der Automatisierung.In the prior art there are also lamp holders known in which a threaded ring is not in the socket body is screwed, but by means of screws is attached to the socket body. Through this screw connection the electrical contact between Thread ring and side contact made. At a such a threaded ring will be when screwing in Forces occurring in the illuminant, however, are not centric distributed since the ring nut only in two each other opposite flange areas of the socket body is supported. This is not an optimal attachment of the threaded ring in the socket body. In addition, assembly by screws is cumbersome and due to the larger number of individual parts at least a greater effort in automation.

Weiterhin bekannt ist eine Lampenfassung mit einer am Fassungskörperboden angenieteten, topfförmigen Gewindehülse. Die Gewindehülse erstreckt sich in axialer Länge im Gegensatz zu einem Gewindering bis hin zum Fassungskörperboden und benötigt daher verhältnismäßig viel Material. Da sie im wesentlichen nur am Fassungskörperboden befestigt ist, kann sie sich beim Einschrauben der Lampe verziehen, was zu einem Schrägoder Schiefstehen der Lampe führen kann. Durch den beim Einschrauben des Leuchtmittels erzeugten Zug an der Gewindehülse gegenüber dem Mittelkontakt kann sich die Befestigung der Gewindehülse am Fassungskörperboden lockern. Dies führt ebenfalls zu einem Wackeln oder Verwackeln des Leuchtmittels in der Fassung.Also known is a lamp holder with a Pot-shaped riveted to the base of the frame Threaded sleeve. The threaded sleeve extends axially Length as opposed to a threaded ring to the socket body bottom and therefore requires relatively a lot of material. Since they are essentially only on the base of the frame is attached, it can be screwed in warp the lamp, causing an oblique or The lamp may skew. By the at Screwing in the bulb generated train on the The threaded sleeve against the center contact can Fastening the threaded sleeve to the base of the frame body loosen. This also leads to a wobble or The lamp shakes in the socket.

Diese Problematik tritt beim einem eingeschraubten Gewindering nicht auf, da sich der Gewindering im Porzellangewinde der Fassung auch axial abstützten kann.This problem occurs with a screwed in The threaded ring does not open because the threaded ring is in the porcelain thread the socket can also be supported axially.

Es ist somit Aufgabe der Erfindung, eine Lampenfassung zu schaffen, die unter Beibehaltung des in den Fassungskörper einschraubbaren Gewinderings so gestaltet ist, daß die Vorgabe des stromführenden Gewinderings erfüllt ist und deren Bestandteile einfach montierbar sind.It is therefore an object of the invention, a To create lamp holder while maintaining the threaded ring screwable into the socket body like this is designed so that the default of the live Thread ring is fulfilled and its components simple are mountable.

Die Erfindung löst diese Aufgabe mit den Merkmalen des Anspruchs 1 und ist demnach dadurch gekennzeichnet, daß der durch den Gewindering gegen die Innenfläche ausgelenkte Seitenkontakt der Lampenfassung zum Gewindering hin verlängert ist und dass der Seitenkontakt als im wesentlichen L-förmiger Streifen ausgebildet ist, wobei der lange L-Schenkel in einer Nut gehalten ist die sich von der Innenfläche des Fassungskörpers erstreckend angeordnet ist und im wesentlichen in Fassungslängsrichtung verläuft und der lange L-Schenkel mit einem Endabschnitt die Außenseite des Gewinderings unter Federspannung kontaktiert.The invention solves this problem with the features of claim 1 and is therefore characterized in that that the side contact deflected by the threaded ring against the inner surface the lamp holder is extended towards the threaded ring and that the side contact is substantially L-shaped Strip is formed, the long L-leg held in a groove which extends from the inner surface of the socket body is and essentially in the longitudinal direction of the frame runs and the long L-leg with one end section the outside of the threaded ring under spring tension contacted.

Das Prinzip der Erfindung beruht somit im wesentlichen darauf, den Seitenkontakt bis zum Gewindering zu führen und einen elektrischen Kontakt zwischen Seitenkontakt und Gewindering herzustellen. Dies geschieht dadurch, daß der Gewindering beim Eindrehen mit seiner Mantelfläche den Seitenkontakt gegen die Innenfläche des Fassungskörpers auslenkt und der vorspannte Kontakt unter dauernder Federspannung am Gewindering gut leitend anliegt.The principle of the invention is thus essentially based on the side contact up to the threaded ring lead and an electrical contact between side contact and manufacture threaded ring. this happens in that the threaded ring when screwing in with its Lateral surface against the inner surface of the Frame body deflects and the preloaded contact good conductivity under permanent spring tension on the threaded ring is applied.

Somit ermöglicht der ohnehin notwendige Arbeitsschritt des Eindrehens des Gewinderings in die Lampenfassung das gleichzeitige Kontaktieren des Gewinderings mit dem Seitenkontakt. Es ist kein weiterer Montageschritt notwendig.This enables the work step that is necessary anyway of screwing the threaded ring into the lamp holder the simultaneous contacting of the threaded ring with the side contact. It is not another assembly step necessary.

Zusätzliche Einzelheiten und weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und werden nachfolgend anhand zweier in den Zeichnungen dargestellter Ausführungsbeispiele näher beschrieben. Es zeigen:

Fig. 1
einen Längsschnitt durch eine Lampenfassung mit Schraubklemmen als Anschlüsse für die nicht gezeigten elektrischen Zuleitungen, und
Fig. 2
einen Längsschnitt durch eine Lampenfassung mit schraubenlosen Anschlußklemmen für die nicht dargestellten elektrischen Zuleitungen.
Additional details and further refinements of the invention result from the subclaims and are described in more detail below with reference to two exemplary embodiments illustrated in the drawings. Show it:
Fig. 1
a longitudinal section through a lamp holder with screw terminals as connections for the electrical leads, not shown, and
Fig. 2
a longitudinal section through a lamp holder with screwless terminals for the electrical leads, not shown.

Die in ihrer Gesamtheit mit 10 bezeichnete Lampenfassung besteht zunächst aus einem Fassungskörper 11. Dieser ist becherartig ausgebildet mit einem Fassungskörperboden 12 und einer umlaufenden Fassungskörperwand 13. Im Rahmen der Erfindung ist vor allem an eine Fassung der Baugröße E 40 gedacht. Darin gelangen besonders schwere Leuchtmittel oder solche mit hohen Zündspannungen zum Einsatz. Die Lampen werden dabei mit ihrem Sockel in einen Gewindering 14 eingeschraubt, der zuvor selbst im Fassungskörper 11 durch Einschrauben befestigt wurde. In der Innenfläche 15 der Fassungskörperwand 13 ist für die Aufnahme des Gewinderings 14 daher ein Fassungsgewinde 16 angeordnet.The lamp socket designated in its entirety with 10 initially consists of a socket body 11. This is cup-shaped with a socket body bottom 12 and a surrounding frame body wall 13. In the context of the invention is mainly to a version the size E 40. Especially get into it heavy bulbs or those with high ignition voltages for use. The lamps are included screwed its base into a threaded ring 14, the previously screwed into the socket body 11 itself was attached. In the inner surface 15 of the socket body wall 13 is for receiving the threaded ring 14 therefore a socket thread 16 is arranged.

Die nicht gezeigte eingeschraubte Lampe kontaktiert zunächst mit ihrem Sockelzentrum einen Mittelkontakt 17. Dessen eines Ende 18a ist am Fassungskörperboden 12 angenietet, und das andere freie Ende 18b ist von einer Feder 19 gegen den Lampensockel vorgespannt.The screwed lamp, not shown, contacts first make a center contact with their base center 17. One end 18a of which is on the socket body bottom 12 riveted, and the other free end is 18b biased by a spring 19 against the lamp base.

Ein Seitenkontakt 20, dessen eines Ende 21 ebenfalls am Fassungskörperboden 12 angenietet ist, ist zum Gewindering 14 hin verlängert. Dieser verlängerte Endabschnitt 22 kontaktiert dabei die Außenseite 23 des Gewinderings 14. Letzterer kontaktiert wiederum die Lampe, wodurch der Stromkreis durch die Lampe geschlossen ist. Durch diese Art der Kontaktierung wird der Gewindering 14 stromführend.A side contact 20, one end 21 also is riveted to the socket body base 12 is for Threaded ring 14 extended. This extended End section 22 contacts the outside 23 of the Thread ring 14. The latter in turn contacts the Lamp, causing the circuit to be closed by the lamp is. Through this type of contacting the Threaded ring 14 live.

Die nicht gezeigten elektrischen Leiter werden von der Außenseite der Fassung 10 her in den Fassungskörperboden 12 geführt. Dort sind die abisolierten Leiterenden in Schraubklemmen 24 aufgenommen, mit denen Seitenkontakt 20 einerseits und Mittelkontakt 17 andererseits verbunden sind.The electrical conductors, not shown, are from the outside of the socket 10 forth in the socket body bottom 12 out. There are the stripped wire ends recorded in screw terminals 24 with which side contact 20 on the one hand and center contact 17 on the other are connected.

Der Seitenkontakt 20 wird von einer Druckfeder 25 zusätzlich gegen die Außenseite 23 des Gewinderings 14 gedrückt. Diese Druckfeder 25 ist im wesentlichen V-förmig ausgebildet, mit einem Mittelabschnitt 26, der sich an der Innenfläche 15 der Fassungskörperwand 13 abstützt und deren beide Enden zum Seitenkontakt 20 hingeführt sind. Am fassungskörperbodenseitigen Ende 27 der Druckfeder 25 ist diese am Seitenkontakt 20 befestigt. Diese Befestigung wird beispielsweise dadurch erreicht, daß eine aus dem Seitenkontakt 20 ausgestanzte Lasche 28 um einen Abschnitt der Druckfeder 25 herumgebogen ist.The side contact 20 is by a compression spring 25 additionally against the outside 23 of the threaded ring 14 pressed. This compression spring 25 is essentially V-shaped formed with a central portion 26, the on the inner surface 15 of the socket body wall 13 supports and both ends of the side contact 20 are led. At the end of the socket body 27 the compression spring 25 is attached to the side contact 20. This attachment is for example achieved that a punched out of the side contact 20 Tab 28 around a portion of compression spring 25 is bent around.

Das freie Ende 29 der Druckfeder 25 liegt nahe dem freien Endabschnitt 22 des Seitenkontakts 20 lediglich an. Der freie Endabschnitt 22 des Seitenkontakts 20 ist von der Fassungsmittelachse A weggebogen und bildet eine Abgleitschräge 30 für den Gewindering 14 aus. Dadurch führt der Gewindering 14 beim Einschrauben den Seitenkontakt 20 selbsttätig nach außen, wobei dessen Rückstellfederkraft aufgebaut bzw. verstärkt wird. Auch ist dabei ein Verhaken des Gewinderings 14 mit dem Seitenkontakt 20 beim Einführen in den Fassungskörper 11 ausgeschlossen. Zweckmäßgigerweise ist auch das freie Ende 29 der Druckfeder 25 von der Fassungsachse A und somit von dem Seitenkontakt nach außen weggebogen, so daß der Endabschnitt 22 hervorragend kontaktiert.The free end 29 of the compression spring 25 is close to that free end portion 22 of the side contact 20 only on. The free end portion 22 of the side contact 20 is bent away from the central axis A and forms a sliding slope 30 for the threaded ring 14. As a result, the threaded ring 14 leads when screwed in Side contact 20 automatically to the outside, its Return spring force is built up or reinforced. Also is a snagging of the threaded ring 14 with the side contact 20 when inserted into the socket body 11 locked out. The free one is also expedient End 29 of the compression spring 25 from the socket axis A and thus bent away from the side contact to the outside, so that the end portion 22 makes excellent contact.

Auf einer Ringstirnfläche 31 der Mündungsseite des Gewinderings 14 sind umfangsverteilt mehrere Mitnehmernocken 32 angeordnet, die das Eindrehen des Gewinderings 14 in das Fassungsgewinde 16 erleichtern. Sie bieten einem nicht gezeigten Eindrehwerkzeug beim Einschrauben jeweils zur Ringstirnfläche 31 des Gewinderings 14 im wesentlichen senkrecht stehende Angriffsflächen 33. In entgegengesetzter Drehrichtung bieten die als giebelartige Ausprägungen gestalteten Mitnehmernocken 32 dem Werkzeug nur eine Schrägfläche 34, an der das Werkzeug keinen Halt findet und daher den Gewindering nicht unbeabsichtigt Rückdrehen kann.On an annular end face 31 of the mouth side of the Threaded ring 14 are circumferentially distributed several driver cams 32 arranged, the screwing of the threaded ring 14 facilitate in the socket thread 16. she offer a screwing tool, not shown, when screwing in each to the ring face 31 of the threaded ring 14 essentially perpendicular attack surfaces 33. Bid in the opposite direction the drive cams designed as gable-like forms 32 only an inclined surface 34 to the tool who does not find the tool and therefore the The ring nut cannot be turned back unintentionally.

Fig. 2 zeigt eine Lampenfassung 10 mit schraubenlosen Anschlußklemmen 36 an Seitenkontakt 20 und Mittelkontakt 17. Auch hier ist an dem Seitenkontakt 20 eine Druckfeder 25 befestigt, deren dem Fassungskörperboden 12 nahes Ende 35 gegenüber dem in Fig. 1 gezeigten Ausführungsbeispiel jedoch verlängert ist. Die schraubenlose Anschlußklemme 36 wird im wesentlichen von einer Federzunge 41 gebildet, die aus dem verlängerten Ende 35 der Druckfeder 25 freigeschnitten und aus deren Ebene herausgeformt ist. Der bezüglich der Zeichnung von unten einzuführende elektrische Leiter stößt auf die in seine Bewegungsbahn B eingreifende Federzunge 41 und bewegt diese zumindest seitlich aus der Bewegungsbahn heraus. Dabei werden von der Federzunge 41 Rückstellkräfte ausgeübt, die den Leiter gegen den Seitenkontakt 20 drücken und damit die elektrische Kontaktierung wie auch die mechanische Fixierung sicherstellen.Fig. 2 shows a lamp holder 10 with screwless Terminals 36 on side contact 20 and center contact 17. Here too there is 20 on the side contact a compression spring 25 attached to the bottom of the socket body 12 near end 35 compared to that shown in FIG. 1 However, embodiment is extended. The screwless terminal 36 becomes essentially formed by a spring tongue 41, which from the extended Cut 35 end of the compression spring 25 and is molded out of their level. The regarding the Drawing of electrical conductors to be inserted from below encounters the spring tongue 41 engaging in its movement path B. and moves it at least sideways out of the trajectory out. In this case, 41 are restoring forces from the spring tongue exercised, the head against the side contact Press 20 and thus the electrical contact as well as ensure the mechanical fixation.

Damit die anzubringenden Leiter auf keinen Fall in den Bereich des anderen Kontaktes gelangen können, ist am Ende der zugelassenen Bewegungsbahn B des elektrischen Leiters ein Einführ-Begrenzungsanschlag 42 vorgesehen.So that the conductors to be attached in no way in reach the area of the other contact is at the end the permitted movement path B of the electrical conductor an insertion limit stop 42 is provided.

Die Befestigung des Seitenkontaktes 20 mit der verlängerten Druckfeder 25 im Fassungskörperboden 12 erfolgt derart, daß ein am bodenseitigen Ende 21 des Seitenkontakts 20 angeordneter Steg 43 in eine Tasche 44 im Fassungskörperboden 12 eingreift. Eine aus der Druckfeder 25 ausgestanzte widerhakenartige Federzunge 45 hintergreift gleichzeitig eine Ausnehmung 46 in der Fassungskörperwand 13. Der Steg 43 und die Federzunge 45 verhindern auf diese Weise eine axiale Verschiebung des Seitenkontakts 20 in dem Fassungskörper 11.The attachment of the side contact 20 with the extended compression spring 25 in the base 12 takes place in such a way that a at the bottom end 21 of the Side contact 20 arranged web 43 in a pocket 44 engages in the socket body base 12. One from the Compression spring 25 punched out barb-like spring tongue 45 engages behind a recess 46 in the Socket body wall 13. The web 43 and the spring tongue 45 prevent axial displacement in this way of the side contact 20 in the socket body 11.

Eine Bewegung des Seitenkontakts 20 in Richtung quer dazu wird einerseits dadurch verhindert, daß sein Anschlußklemmenende fassungsbodenseitig in einer umfangsangepaßten Ausnehmung oder Tasche 47 aufgenommen und der lange L-Schenkel des Seitenkontakts 20 in einer Nut 48 geführt ist, die sich in der Innenwand des Fassungskörpers parallel zur Fassungslängsachse A erstreckt. Movement of the side contact 20 in the direction transversely to this is on the one hand prevented from being Terminal end on the bottom of the socket in one circumferentially adapted recess or pocket 47 added and the long L-leg of the side contact 20 in one Groove 48 is guided, which is in the inner wall of the Socket body parallel to the longitudinal axis A extends.

Auch am Mittelkontakt 17 ist gemäß dem in Fig. 2 gezeigten Ausführungsbeispiel ein Federglied 37 befestigt, das der verlängerten Druckfeder 25 am Seitenkontakt 20 entspricht. Das Federglied 37 ist bis unter den Kontaktierungsbereich 38 des Mittelkontakts 17 geführt und ist dort als Blattfeder 39 ausgebildet, die die zuvor beschriebene Spiralfeder 19 ersetzt. Das befestigungsseitige Ende 40 des Federgliedes 37 wirkt ebenfalls an der Ausbildung des Anschlusses als schraubenlose Anschlußklemme 36 mit, wobei die Federzunge 41 in analoger Weise aus dem Federglied 37 herausgestanzt ist.The center contact 17 is also in accordance with that in FIG. 2 shown embodiment attached a spring member 37, that of the extended compression spring 25 on the side contact 20 corresponds. The spring member 37 is below Contacting area 38 of the center contact 17 out and is formed there as a leaf spring 39, which previously described coil spring 19 replaced. The attachment side End 40 of the spring member 37 also acts the formation of the connection as screwless Terminal 36 with, the spring tongue 41 in analog Is punched out of the spring member 37.

Der Seitenkontakt 20 bzw. der Mittelkontakt 17 sind vorzugsweise aus einem gut elektrisch leitenden Material wie Kupfer oder Messing hergestellt. Die Druckfeder 25 und das Federglied 37 sind vorzugsweise aus einem hitzebeständigen und eine dauerhafte Federkraft gewährleistenden Material, wie beispielsweise einer Chrom-Nickel Legierung gefertigt.The side contact 20 or the center contact 17 are preferably made of a good electrically conductive Made of material such as copper or brass. The Compression spring 25 and spring member 37 are preferred from a heat-resistant and permanent spring force guaranteeing material, such as made of a chrome-nickel alloy.

Claims (13)

  1. Lamp socket (10), particularly for receiving heavy illuminants, with a socket body (11) made of porcelain, with a socket thread (16) disposed in an inner face (15) of a wall (13) of the socket body and a threaded ring (14) screwed into the said socket thread for receiving a lamp base, with a central contact (17) and with a lateral contact (20) fastened to the bottom (12) of the socket body, characterised in that that lateral contact (20) of the lamp socket (10) which is deflected by the threaded ring (14) against the inner face (15) is prolonged towards the said threaded ring (14) and that the said lateral contact (20) is constructed as an essentially L-shaped strip, the long leg of the L being held in a groove (48) which is disposed so as to extend from the inner face (15) of the socket body (11), and extending essentially in the longitudinal direction of the socket, and the said long leg of the L making contact, via an end section (22), with the outside (23) of the threaded ring (14) under spring tension.
  2. Lamp socket according to claim 1, characterised in that the long leg of the L of the lateral contact (20) has a first section which rests tightly against the bottom of the groove (48) in the socket (10), and a second section which is disposed at a distance from the bottom of the said groove (48).
  3. Lamp socket according to one of the preceding claims, characterised in that the end section (22) of the lateral contact (20) is bent away outwards, constructing a slip-off slope (30) for the threaded ring (14).
  4. Lamp socket according to one of the preceding claims, characterised in that there is disposed on the lateral contact (20) a pressure spring (25) which loads the said lateral contact against the threaded ring (14).
  5. Lamp socket according to claim 4, characterised in that the pressure spring (25) is disposed between that section of the lateral contact (20) which is at a distance from the inner face (15) of the socket body (11), and the bottom of the groove (48) in the socket (10).
  6. Lamp socket according to claim 5, characterised in that the pressure spring (25) is constructed as an essentially V-shaped strip and is supported, via its apex region (26), against the bottom of the groove (48) in the socket body (11), is fastened, at one end (27), to the lateral contact (20) and, with its other end (29), loads the lateral contact (20) against the threaded ring (14).
  7. Lamp socket according to claim 2, characterised in that connections, which are constructed as screw-less connecting terminals (36), are provided on the short leg of the L of the lateral contact (20) for the electrical lines.
  8. Lamp socket according to one of claims 4 to 7, characterised in that the pressure spring (25) is prolonged towards the bottom (12) of the socket body, rests tightly against the lateral contact (20) and, together with the latter, constructs the screw-less connecting terminal (36).
  9. Lamp socket according to one of the preceding claims, characterised in that there is also disposed on the central contact (17) a spring member (37) which constructs, together with a fastening section on the central contact (17), a screw-less connecting terminal (36).
  10. Lamp socket according to claim 9, characterised in that the spring member (37) is prolonged to a point beneath the contact-making region (38) of the central contact (17) and loads the latter against the illuminant.
  11. Lamp socket according to one of claims 4 to 6 and also 9 or 10, characterised in that the lateral contact (20) and the central contact (17) consist of a material having good electrical conductivity such as copper, and the pressure spring (25) and spring member (37) consist of a heat-resistant material such as a chrome nickel alloy.
  12. Lamp socket according to one of the preceding claims, characterised in that the threaded ring (14) has, on its side that points away from the bottom (12) of the socket body, an annular end face (31) on which driving cams (32) for the engagement of a tool for screwing the threaded ring (14) into the socket body (11) are provided, which driving cams offer the said tool engagement faces (33) which are essentially perpendicular to the annular end face (31) in the screwing-in direction.
  13. Lamp socket according to claim 12, characterised in that the driving cams (32) are formed by gable-like portions stamped out of the annular end face (31).
EP98104982A 1997-04-10 1998-03-19 Lamp socket Expired - Lifetime EP0871266B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29706338U 1997-04-10
DE29706338U DE29706338U1 (en) 1997-04-10 1997-04-10 Lamp holder

Publications (3)

Publication Number Publication Date
EP0871266A2 EP0871266A2 (en) 1998-10-14
EP0871266A3 EP0871266A3 (en) 1999-06-16
EP0871266B1 true EP0871266B1 (en) 2002-06-05

Family

ID=8038687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104982A Expired - Lifetime EP0871266B1 (en) 1997-04-10 1998-03-19 Lamp socket

Country Status (3)

Country Link
EP (1) EP0871266B1 (en)
DE (2) DE29706338U1 (en)
ES (1) ES2178062T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843001A1 (en) * 1998-09-21 2000-05-18 Pistor Geb Kowski Electric lamp holder for screw-in type bulb has insert opening with smooth walls and sprung side contact which grips screw thread
DE10000245B4 (en) * 2000-01-05 2004-02-05 Eti Elektroelement D.D. lamp socket
AU2002308931A1 (en) * 2002-04-23 2003-11-10 Mass Technology (H.K.) Ltd. Safe socket
ES2238670T3 (en) * 2003-02-28 2005-09-01 Signal Lux Mds S.R.L. ELECTRICAL CONNECTION TERMINAL.
CN114789222B (en) * 2022-06-22 2022-09-06 佛山市创大为聚氨酯制品有限公司 Riveting machine for riveting glass lamp cup binding post and riveting method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7916649U1 (en) * 1979-06-09 1980-11-20 Pistor, Ferdinand, 5974 Herscheid Ceramic socket for electric lamps with threaded base
DE3213964C2 (en) * 1982-04-15 1985-04-25 Metalluk Bauscher GmbH & Co KG, 8600 Bamberg Lamp holder
DE4312427A1 (en) * 1993-04-19 1994-10-20 Broekelmann Jaeger & Busse Lamp holder

Also Published As

Publication number Publication date
EP0871266A2 (en) 1998-10-14
EP0871266A3 (en) 1999-06-16
DE29706338U1 (en) 1997-06-26
ES2178062T3 (en) 2002-12-16
DE59804284D1 (en) 2002-07-11

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