[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0027244B1 - Lampholder with arrangement to prevent access to live wires - Google Patents

Lampholder with arrangement to prevent access to live wires Download PDF

Info

Publication number
EP0027244B1
EP0027244B1 EP80106075A EP80106075A EP0027244B1 EP 0027244 B1 EP0027244 B1 EP 0027244B1 EP 80106075 A EP80106075 A EP 80106075A EP 80106075 A EP80106075 A EP 80106075A EP 0027244 B1 EP0027244 B1 EP 0027244B1
Authority
EP
European Patent Office
Prior art keywords
contact
movable
arrangement
center
incandescent lamp
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
EP80106075A
Other languages
German (de)
French (fr)
Other versions
EP0027244A1 (en
Inventor
Peter Scheller
Hans J. Schmitz
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.)
Neuenschwander and Co AG
Original Assignee
Neuenschwander and Co AG
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 Neuenschwander and Co AG filed Critical Neuenschwander and Co AG
Priority to AT80106075T priority Critical patent/ATE11716T1/en
Publication of EP0027244A1 publication Critical patent/EP0027244A1/en
Application granted granted Critical
Publication of EP0027244B1 publication Critical patent/EP0027244B1/en
Expired legal-status Critical Current

Links

Images

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
    • 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
    • H01R33/945—Holders with built-in electrical component
    • H01R33/96—Holders with built-in electrical component with switch operated by engagement or disengagement of coupling
    • H01R33/962—Holders with built-in electrical component with switch operated by engagement or disengagement of coupling for screw type coupling devices

Definitions

  • the invention relates to an incandescent lamp socket with a touch-safe voltage supply, which socket has a center contact and a side contact, which can be moved relative to one another by screwing in an incandescent lamp, and a switch contact arrangement which is held in the open position by spring force when the incandescent lamp is unscrewed and relative to one another when the incandescent lamp is screwed in is movable and can be brought into a closed position.
  • a light bulb screw socket which has a socket held in the socket housing and a threaded basket that can be moved relative to the socket by screwing in the light bulb.
  • the foot contact and an intermediate contact, to which a wire of the supply line can be attached, is attached to the socket.
  • An insulating plate with a contact bridge is attached to the threaded basket, so that the contact bridge can be brought into contact with the foot contact and the intermediate contact in order to close the current path.
  • CH-A-248108 describes an incandescent lamp socket equipped with a touch protection, which has a fixed foot contact and a movable contact part which is guided over an insulating piece on the foot contact.
  • an incandescent lamp holder in which a plate with contact pieces, which can be moved by screwing an incandescent lamp in the direction of the socket, is used to produce the electrical connection for the threaded basket and the foot contact.
  • US-A-2306741 describes an incandescent lamp socket in which the foot contact is displaced when an incandescent lamp is screwed in.
  • the foot contact is designed on the one hand as a movable contact part and on the other hand is provided with a insulating piece in order to establish the electrical connection to the threaded basket.
  • incandescent lamp sockets have the common disadvantage that their switching contact arrangement has only one isolating distance and the contact is made only by a switching movement.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating an incandescent lamp socket in which each contact arrangement has two isolating paths and in which the contact between the connection terminals and the side contact or the center contact is effected by two separate switching movements.
  • a lamp holder with Edison thread which essentially has an upper part 1, a threaded basket 2, which forms the side contact 6, a lower part 3 and a body 5 with a center contact 7, which is clamped between the upper and lower part .
  • the side contact 6 and the center contact 7 are designed as mechanically locked switch contact arrangements.
  • the side contact 6 has a fixed contact part 35, an intermediate contact part 36 and a movable contact part 37.
  • the fixed contact part 35 is strip-shaped and is provided at one end with a contact nipple 38 and at the other end is fastened to the body 5 by a part (not shown) designed as a fastening and connecting element.
  • the fixed contact part 35 is arranged such that it protrudes through a recess 39 into a recess 40.
  • the recess 40 is formed on the side of the body 5 facing the lower base part 3 such that it extends over the body 5 and lies in the center of the body 5.
  • the intermediate contact part 36 is strip-shaped.
  • a contact nipple 41, 42 is provided in each of the end sections and protrudes from one side of the strip.
  • the intermediate contact part 36 is attached with the other side to the base surface of the recess 40 by a pin 43 such that the end section provided with the contact nipple 41 forms a movable section which can be pivoted by an external force to the contact nipple 41, 38 of the To bring intermediate contact part 36 and the fixed contact part 35 into contact with each other.
  • a bore 44 is provided, into which an actuating part 45 projects for pivoting the end section.
  • the other end section with the contact nipple 42 forms a fixed section due to the position of the attachment point of the intermediate contact part 36.
  • the movable contact part 37 is also strip-shaped.
  • a contact nipple 46 is arranged on the movable contact part 37 at one end and a holding rod 47 is fastened at one end at the other end.
  • the holding rod 47 is axially displaceably arranged in a hole 48 in the body 5 such that the contact nipples 42, 46 of the intermediate contact part 36 and the movable contact part 37 can be brought into contact with one another.
  • a further hole 49 is provided in the body 5, in which a second holding rod 50 is arranged to be axially displaceable.
  • Analogous to the first one Holding rod 47 has an actuating part 51 attached to one end of second holding rod 50.
  • a ring 54 is fastened to the other ends of the holding rods 47 and 50.
  • the ring 54 consists of a wire with a round cross section and has an inner diameter which is slightly larger than the core diameter of the thread on the lamp base.
  • the ring 54 is designed and fastened to the holding rods 47 and 50 in such a way that it forms a left-hand thread that can be brought into engagement with the thread on the lamp base.
  • the threaded basket 2 can also be fastened to the holding rods 47, 50.
  • the center contact 7 also has a fixed contact part 55, an intermediate contact part 56 and a movable contact part 57.
  • the fixed contact part 55 is fastened to the body 5 in a manner analogous to the side contact 6 by a part (not shown) designed as a fastening and connecting element, so that it projects into the recess 40 and is provided with a contact nipple 58.
  • the intermediate contact part 56 is strip-shaped and is fastened by a pin 59 to a projection 60 which is provided in the recess 40.
  • contact nipples 61, 62 are provided which protrude from one side of the strip.
  • the intermediate contact part 56 is fastened to the projection 60 such that the end section provided with the contact nipple 61 forms a movable section which can be pivoted by the external force in order to bring the contact nipples 61, 58 of the intermediate contact part 56 and the fixed contact part 55 into contact with one another and which rests on the actuating part 51.
  • the other end section with the contact nipple 62 forms a fixed section analogously to the side contact 6.
  • the movable contact part 57 consists of a contact pin 63 and a contact nipple 64 formed integrally therewith at one end of the contact pin 63.
  • the contact pin 63 is arranged axially displaceably in a bore 65.
  • a cylindrical recess 66 is provided which is arranged coaxially to the bore 65.
  • a compression spring 67 is arranged, which on the one hand rests on the contact surface formed by the recess 66 and on the other hand rests on the underside of the contact nipple 64.
  • the compression spring 67 presses the contact nipple 64 into an initial position, which is determined by the actuating part 45.
  • a further cylindrical recess 68 is provided in the side of the body 5 facing the lower part 3, which is formed coaxially to the bore 65.
  • the actuating part 45 is fastened to the pin 63 and lies against the surface formed by the recess 68.
  • the actuating part 45 is made of insulating material and has a cylindrical extension 69 which projects through the bore 44 in the intermediate contact part 36 of the side contact 6, as a result of which the movable contact part 57 of the center contact 7 is insulated from the intermediate contact part 36 of the side contact 6.
  • the switching arrangements are actuated by screwing in the lamp.
  • the contact plate on the lamp presses against the movable contact part 57 of the center contact 7 and displaces it against the force of the compression spring 67.
  • the displacement of the movable contact part 57 brings the contact pin 63 into contact with the contact nipple 62 on the intermediate contact part 56 of the center contact 7 at the same time, the movable section of the intermediate contact part 36 of the side contact 6 is pivoted by the actuating part 45, so that the intermediate contact part 36 and the fixed contact part 35 are brought into contact with one another.
  • a separating path is closed in each switching contact arrangement.
  • the ring 54 is gripped by the thread on the lamp base when the lamp is screwed in and is rotated upward by the rotation of the lamp against the force of the compression springs 52, i. H. pulled away from the body 5.
  • the movable contact part 37 and the intermediate contact part 36 of the side contact 6 are brought into contact with one another and at the same time the movable section of the intermediate contact part 56 and the fixed contact part 55 of the center contact 7 are brought into contact with one another by the actuating part 51 on the holding rod 50.
  • the other isolating path in each switching contact arrangement is closed and the incandescent lamp lights up.
  • the forces acting on the side contact 6 and the center contact 7 are directed in opposite directions in order to close the switch contact arrangement. It is pointed out that the force acting on the side contact 6 can have the same direction as the force acting on the center contact 7. To achieve this, only different elements of the switching arrangement have to be designed and arranged differently, which is within the knowledge of the average person skilled in the art.

Landscapes

  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connecting Device With Holders (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

The device is provided with lead current terminals and a contact arrangement (6, 7) arranged on a support (5). The contact arrangement comprises switching members with two cut off gaps. Each switching member is provided with at least two contact pieces (35, 36, 37; 55, 56, 57) displaceable one towards the other under the action of an outer force so as to close the cut off spaces. The switching members are locked mechanically and/or electrically with respect to each other so as to prevent the conduction of current during touching.

Description

Die Erfindung betrifft eine Glühlampenfassung mit berührungssicherer Spannungszuführung, welche Fassung einen Mittelkontakt und einen Seitenkontakt, die durch Einschrauben einer Glühlampe relativ zueinander bewegbar sind, und eine Schaltkontaktanordnung aufweist, die bei ausgeschraubter Glühlampe durch Federkraft in geöffneter Stellung gehalten wird und beim Einschrauben der Glühlampe relativ zueinander bewegbar und in eine geschlossene Stellung bringbar ist.The invention relates to an incandescent lamp socket with a touch-safe voltage supply, which socket has a center contact and a side contact, which can be moved relative to one another by screwing in an incandescent lamp, and a switch contact arrangement which is held in the open position by spring force when the incandescent lamp is unscrewed and relative to one another when the incandescent lamp is screwed in is movable and can be brought into a closed position.

Aus der DE-G3-1 539415 ist eine Glühlampenschraubfassung bekannt, die einen im Fassungsgehäuse festgehaltenen Fassungsstein und einen durch Einschrauben derGlühlampe zum Fassungsstein relativ bewegbaren Gewindekorb aufweist. Am Fassungsstein ist der Fusskontakt und ein Zwischenkontakt, an dem eine Ader der Zuleitung befestigbar ist, befestigt. Am Gewindekorb ist eine Isolierplatte mit einer Kontaktbrücke befestigt, so dass die Kontaktbrücke mit dem Fusskontakt und dem Zwischenkontakt in Berührung bringbar ist, um den Strompfad zu schliessen.From DE-G3-1 539415 a light bulb screw socket is known, which has a socket held in the socket housing and a threaded basket that can be moved relative to the socket by screwing in the light bulb. The foot contact and an intermediate contact, to which a wire of the supply line can be attached, is attached to the socket. An insulating plate with a contact bridge is attached to the threaded basket, so that the contact bridge can be brought into contact with the foot contact and the intermediate contact in order to close the current path.

In der CH-A-248108 ist eine mit Berührungsschutz ausgerüstete Glühlampenfassung beschrieben, die einen feststehenden Fusskontakt und einen beweglichen Kontaktteil hat, der über ein Isolierstück am Fusskontakt geführt ist. Beim Einschrauben der Glühlampe wird zuerst über das Plättchen die elektrische Verbindung zum Gewindekorb hergestellt und anschliessend die elektrische Verbindung zwischen Lampensockelkontakt und Fusskontakt.CH-A-248108 describes an incandescent lamp socket equipped with a touch protection, which has a fixed foot contact and a movable contact part which is guided over an insulating piece on the foot contact. When screwing in the light bulb, the electrical connection to the threaded basket is first made via the plate and then the electrical connection between the lamp base contact and foot contact.

Aus der GB-A-312 267 ist eine Glühlampenfassung bekannt, bei der eine durch Einschrauben einer Glühlampe in Richtung des Fassungssteines verschiebbare Platte mit Kontaktstücken die elektrische Verbindung für den Gewindekorb und den Fusskontakt hergestellt wird.From GB-A-312 267 an incandescent lamp holder is known, in which a plate with contact pieces, which can be moved by screwing an incandescent lamp in the direction of the socket, is used to produce the electrical connection for the threaded basket and the foot contact.

In der US-A-2306741 ist eine Glühlampenfassung beschrieben, bei der der Fusskontakt beim Einschrauben einer Glühlampe verschoben wird. Dabei ist der Fusskontakt einerseits als beweglicher Kontaktteil ausgebildet und andererseits mit einem tsolierstück versehen, um die elektrische Verbindung zum Gewindekorb herzustellen.US-A-2306741 describes an incandescent lamp socket in which the foot contact is displaced when an incandescent lamp is screwed in. The foot contact is designed on the one hand as a movable contact part and on the other hand is provided with a insulating piece in order to establish the electrical connection to the threaded basket.

Die vorstehend erwähnten Glühlampenfassungen haben den gemeinsamen Nachteil, dass deren Schaltkontaktanordnung nur eine Trennstrekke hat und die Kontaktgabe nur durch eine Schaltbewegung erfolgt.The above-mentioned incandescent lamp sockets have the common disadvantage that their switching contact arrangement has only one isolating distance and the contact is made only by a switching movement.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe eine Glühlampenfassung zu schaffen, bei der jede Kontaktanordnung zwei Trennstrecken aufweist und bei der die Kontaktgabe zwischen den Anschlussklemmen und dem Seitenkontakt bzw. dem Mittelkontakt durch zwei separate Schaltbewegungen erfolgt.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating an incandescent lamp socket in which each contact arrangement has two isolating paths and in which the contact between the connection terminals and the side contact or the center contact is effected by two separate switching movements.

Die mit der Erfindung erreichbaren Vorteile sind im wesentlichen darin zu sehen, dass eine unabsichtliche Kontaktgabe mittels der Hand nicht möglich ist, weil die separaten Bewegungen zur Kontaktgabe mit der Hand aufgrund des beschränkten Raumes innerhalb des Fassungsgehäuses nicht ausführbar sind, und dass beim Anschliessen der Lampenfassung an das Netz die stromführende Ader an eine beliebige Anschlussklemme angeschlossen werden kann, so dass auch Laien keinen Fehler machen können.The advantages achievable with the invention are essentially to be seen in the fact that unintentional contacting by hand is not possible, because the separate movements for contacting by hand cannot be carried out due to the limited space within the lampholder housing, and that when the lamp holder is connected the current-carrying wire can be connected to any connection terminal in the network, so that even laypersons cannot make a mistake.

Im folgenden wird die Erfindung anhand der beiliegenden Zeichnung erläutert, die ein Ausführungsbeispiel einer Glühlampenfassung zeigt.The invention is explained below with reference to the accompanying drawing, which shows an exemplary embodiment of an incandescent lamp holder.

In der Figur ist eine Lampenfassung mit Edison-Gewinde dargestellt, die im wesentlichen einen Fassungsoberteil 1, einen Gewindekorb 2, der den Seitenkontakt 6 bildet, einen Fassungsunterteil 3 und einen Körper 5 mit einem Mittelkontakt 7 aufweist, der zwischen Ober- und Unterteil eingeklemmt ist. Wie die Figur zeigt, sind der Seitenkontakt 6 und der Mittelkontakt 7 als mechanisch verriegelte Schaltkontaktanordnungen ausgebildet.In the figure, a lamp holder with Edison thread is shown, which essentially has an upper part 1, a threaded basket 2, which forms the side contact 6, a lower part 3 and a body 5 with a center contact 7, which is clamped between the upper and lower part . As the figure shows, the side contact 6 and the center contact 7 are designed as mechanically locked switch contact arrangements.

Der Seitenkontakt 6 weist einen feststehenden Kontaktteil 35, einen Zwischenkontaktteil 36 und einen beweglichen Kontaktteil 37 auf. Der feststehende Kontaktteil 35 ist streifenförmig ausgebildet und ist an einem Ende mit einem Kontaktnippel 38 versehen und am anderen Ende durch einen als Befestigungs- und Anschlussorgan ausgebildeten Teil (nicht dargestellt) am Körper 5 befestigt. Der feststehende Kontaktteil 35 ist so angeordnet, dass er durch eine Aussparung 39 in eine Ausnehmung 40 hineinragt. Die Ausnehmung 40 ist an der dem Fassungsunterteil 3 zugewandten Seite des Körpers 5 so ausgebildet, dass sie sich über den Körper 5 erstreckt und im Zentrum des Körpers 5 liegt. Der Zwischenkontaktteil 36 ist streifenförmig ausgebildet. In den Endabschnitten sind jeweils ein Kontaktnippel 41, 42 vorgesehen, die von einer Seite des Streifens abstehen. Der Zwischenkontaktteil 36 ist mit der anderen Seite anliegend an die Basisfläche der Ausnehmung 40 durch einen Stift 43 so befestigt, dass der mit dem Kontaktnippel 41 versehene Endabschnitt einen beweglichen Abschnitt bildet, der durch eine äussere Kraft verschwenkbar ist, um die Kontaktnippel 41, 38 des Zwischenkontaktteiles 36 und des feststehenden Kontaktteils 35 miteinander in Berührung zu bringen. In diesem Endabschnitt ist eine Bohrung 44 vorgesehen, in die ein Betätigungsteil 45 zum Verschwenken des Endabschnittes hineinragt. Der andere Endabschnitt mit dem Kontaktnippel 42 bildet bedingt durch die Lage des Befestigungspunktes des Zwischenkontaktteils 36 einen feststehenden Abschnitt. Der bewegliche Kontaktteil 37 ist ebenfalls streifenförmig ausgebildet. Am beweglichen Kontaktteil 37 ist an einem Ende ein Kontaktnippel 46 angeordnet und am anderen Ende ein Haltestab 47 an einem Ende befestigt. Der Haltestab 47 ist in einem Loch 48 im Körper 5 axial verschiebbar so angeordnet, dass die Kontaktnippel 42, 46 des Zwischenkontaktteils 36 und des beweglichen Kontaktteils 37 miteinander in Kontakt bringbar sind. Diametral zum Loch 48 ist im Körper 5 ein weiteres Loch 49 vorgesehen, in dem ein zweiter Haltestab 50 axial verschiebbar angeordnet ist. Analog wie beim erstgenannten Haltestab 47 ist an einem Ende des zweiten Haltestabes 50 ein Betätigungsteil 51 befestigt. Zwischen dem Körper 5 und dem beweglichen Kontaktteil 37, sowie dem Körper 5 und dem Betätigungstei! 51 sind jeweils Druckfedern 52 angeordnet, die von den Haltestäben 47 und 50 geführt sind. An den Haltestäben 47 und 50 sind Anschlagstücke 53 befestigt, welche durch die Druckfedern 52 gegen die dem Fassungsoberteil 1 zugewandte Seite des Körpers 5 gezogen werden und die Haltestäbe 47 und 50 in einer Ausgangslage halten. An den anderen Enden der Haltestäbe 47 und 50 ist ein Ring 54 befestigt. Der Ring 54 besteht aus einem Draht mit rundem Querschnitt und hat einen Innendurchmesser, der etwas grösser als der Kerndurchmesser des Gewindes am Lampensockel ist. Der Ring 54 ist so ausgebildet und an den Haltestäben 47 und 50 befestigt, dass er einen linksgängigen Gewindegang bildet, der mit dem Gewinde am Lampensockel in Eingriff bringbar ist. Anstelle des Ringes 54 kann auch der Gewindekorb 2 an den Haltestäben 47, 50 befestigt sein.The side contact 6 has a fixed contact part 35, an intermediate contact part 36 and a movable contact part 37. The fixed contact part 35 is strip-shaped and is provided at one end with a contact nipple 38 and at the other end is fastened to the body 5 by a part (not shown) designed as a fastening and connecting element. The fixed contact part 35 is arranged such that it protrudes through a recess 39 into a recess 40. The recess 40 is formed on the side of the body 5 facing the lower base part 3 such that it extends over the body 5 and lies in the center of the body 5. The intermediate contact part 36 is strip-shaped. A contact nipple 41, 42 is provided in each of the end sections and protrudes from one side of the strip. The intermediate contact part 36 is attached with the other side to the base surface of the recess 40 by a pin 43 such that the end section provided with the contact nipple 41 forms a movable section which can be pivoted by an external force to the contact nipple 41, 38 of the To bring intermediate contact part 36 and the fixed contact part 35 into contact with each other. In this end section, a bore 44 is provided, into which an actuating part 45 projects for pivoting the end section. The other end section with the contact nipple 42 forms a fixed section due to the position of the attachment point of the intermediate contact part 36. The movable contact part 37 is also strip-shaped. A contact nipple 46 is arranged on the movable contact part 37 at one end and a holding rod 47 is fastened at one end at the other end. The holding rod 47 is axially displaceably arranged in a hole 48 in the body 5 such that the contact nipples 42, 46 of the intermediate contact part 36 and the movable contact part 37 can be brought into contact with one another. Diametrically to the hole 48, a further hole 49 is provided in the body 5, in which a second holding rod 50 is arranged to be axially displaceable. Analogous to the first one Holding rod 47 has an actuating part 51 attached to one end of second holding rod 50. Between the body 5 and the movable contact part 37, as well as the body 5 and the actuating part! 51 are arranged compression springs 52 which are guided by the holding rods 47 and 50. Stop pieces 53 are fastened to the holding bars 47 and 50, which are pulled by the compression springs 52 against the side of the body 5 facing the frame upper part 1 and hold the holding bars 47 and 50 in a starting position. A ring 54 is fastened to the other ends of the holding rods 47 and 50. The ring 54 consists of a wire with a round cross section and has an inner diameter which is slightly larger than the core diameter of the thread on the lamp base. The ring 54 is designed and fastened to the holding rods 47 and 50 in such a way that it forms a left-hand thread that can be brought into engagement with the thread on the lamp base. Instead of the ring 54, the threaded basket 2 can also be fastened to the holding rods 47, 50.

Der Mittelkontakt 7 weist ebenfalls einen feststehenden Kontaktteil 55, einen Zwischenkontaktteil 56 und einen beweglichen Kontaktteil 57 auf. Der feststehende Kontaktteil 55 ist analog wie beim Seitenkontakt 6 durch einen als Befestigungs- und Anschlussorgan ausgebildeten Teil (nicht dargestellt) am Körper 5 so befestigt, dass er in die Ausnehmung 40 hineinragt und ist mit einem Kontaktnippel 58 versehen. Der Zwischenkontaktteil 56 ist streifenförmig ausgebildet und durch einen Stift 59 an einem Vorsprung 60 befestigt, der in der Ausnehmung 40 vorgesehen ist. In den Endabschnitten des Zwischenkontaktteiles 56 sind Kontaktnippel 61, 62 vorgesehen, die von einer Seite des Streifens abstehen. Der Zwischenkontaktteil 56 ist so am Vorsprung 60 befestigt, dass der mit dem Kontaktnippel 61 versehene Endabschnitt einen beweglichen Abschnitt bildet, der durch die äussere Kraft verschwenkbar ist, um die Kontaktnippel 61, 58 des Zwischenkontaktteils 56 und des feststehenden Kontaktteils 55 miteinander in Kontakt zu bringen und der auf dem Betätigungsteil 51 aufliegt. Der andere Endabschnitt mit dem Kontaktnippel 62 bildet analog wie beim Seitenkontakt 6 einen feststehenden Abschnitt. Der bewegliche Kontaktteil 57 besteht aus einem Kontaktstift 63 und einem mit diesem einstückig ausgebildeten Kontaktnippel 64 an einem Ende des Kontaktstiftes 63. Der Kontaktstift 63 ist in einer Bohrung 65 axial verschiebbar angeordnet. In der dem Fassungsoberteil 1 zugewandten Seite des Körpers 5 ist eine zylindrische Ausnehmung 66 vorgesehen, die koaxial zur Bohrung 65 angeordnet ist. In dieser Ausnehmung 66 ist eine Druckfeder 67 angeordnet, die einerseits auf der durch die Ausnehmung 66 gebildeten Auflagefläche aufliegt und andererseits an der Unterseite des Kontaktnippels 64 anliegt. Die Druckfeder 67 drückt den Kontaktnippel 64 in eine Ausgangsstellung, die durch den Betätigungsteil 45 bestimmt wird. In der dem Fassungsunterteil 3 zugewandten Seite des Körpers 5 ist eine weitere zylindrische Ausnehmung 68 vorgesehen, die koaxial zur Bohrung 65 ausgebildet ist. Der Betätigungsteil 45 ist am Stift 63 befestigt und liegt an der durch die Ausnehmung 68 gebildeten Fläche an. Der Betätigungsteil 45 besteht aus Isoliermaterial und hat einen zylinderförmigen Ansatz 69, der durch die Bohrung 44 im Zwischenkontaktteil 36 des Seitenkontaktes 6 hindurchragt, wodurch der bewegliche Kontaktteil 57 des Mittelkontaktes 7 gegen den Zwischenkontaktteil 36 des Seitenkontaktes 6 isoliert wird.The center contact 7 also has a fixed contact part 55, an intermediate contact part 56 and a movable contact part 57. The fixed contact part 55 is fastened to the body 5 in a manner analogous to the side contact 6 by a part (not shown) designed as a fastening and connecting element, so that it projects into the recess 40 and is provided with a contact nipple 58. The intermediate contact part 56 is strip-shaped and is fastened by a pin 59 to a projection 60 which is provided in the recess 40. In the end sections of the intermediate contact part 56, contact nipples 61, 62 are provided which protrude from one side of the strip. The intermediate contact part 56 is fastened to the projection 60 such that the end section provided with the contact nipple 61 forms a movable section which can be pivoted by the external force in order to bring the contact nipples 61, 58 of the intermediate contact part 56 and the fixed contact part 55 into contact with one another and which rests on the actuating part 51. The other end section with the contact nipple 62 forms a fixed section analogously to the side contact 6. The movable contact part 57 consists of a contact pin 63 and a contact nipple 64 formed integrally therewith at one end of the contact pin 63. The contact pin 63 is arranged axially displaceably in a bore 65. In the side of the body 5 facing the upper part 1 of the frame, a cylindrical recess 66 is provided which is arranged coaxially to the bore 65. In this recess 66 a compression spring 67 is arranged, which on the one hand rests on the contact surface formed by the recess 66 and on the other hand rests on the underside of the contact nipple 64. The compression spring 67 presses the contact nipple 64 into an initial position, which is determined by the actuating part 45. A further cylindrical recess 68 is provided in the side of the body 5 facing the lower part 3, which is formed coaxially to the bore 65. The actuating part 45 is fastened to the pin 63 and lies against the surface formed by the recess 68. The actuating part 45 is made of insulating material and has a cylindrical extension 69 which projects through the bore 44 in the intermediate contact part 36 of the side contact 6, as a result of which the movable contact part 57 of the center contact 7 is insulated from the intermediate contact part 36 of the side contact 6.

Die Betätigung der Schaltanordnungen erfolgt durch das Einschrauben der Lampe. Dabei drückt das Kontaktplättchen an der Lampe gegen den beweglichen Kontaktteil 57 des Mittelkontaktes 7 und verschiebt diesen gegen die Kraft der Druckfeder 67. Durch die Verschiebung des beweglichen Kontaktteils 57 wird der Kontaktstift 63 mit dem Kontaktnippel 62 am Zwischenkontaktteil 56 des Mittelkontaktes 7 in Kontakt gebracht und gleichzeitig wird der bewegliche Abschnitt des Zwischenkontaktteils 36 des Seitenkontaktes 6 durch den Betätigungsteil 45 verschwenkt, so dass der Zwischenkontaktteil 36 und der feststehende Kontaktteil 35 miteinander in Kontakt gebracht werden. Durch die auf den beweglichen Kontaktteil 57 einwirkende Kraft wird somit jeweils eine Trennstrecke in jeder Schaltkontaktanordnung geschlossen.The switching arrangements are actuated by screwing in the lamp. The contact plate on the lamp presses against the movable contact part 57 of the center contact 7 and displaces it against the force of the compression spring 67. The displacement of the movable contact part 57 brings the contact pin 63 into contact with the contact nipple 62 on the intermediate contact part 56 of the center contact 7 at the same time, the movable section of the intermediate contact part 36 of the side contact 6 is pivoted by the actuating part 45, so that the intermediate contact part 36 and the fixed contact part 35 are brought into contact with one another. As a result of the force acting on the movable contact part 57, a separating path is closed in each switching contact arrangement.

Der Ring 54 wird beim Einschrauben der Lampe vom Gewinde am Lampensockel erfasst und durch die Drehung der Lampe gegen die Kraft der Druckfedern 52 nach oben, d. h. vom Körper 5 weggezogen. Dabei werden der bewegliche Kontaktteil 37 und der Zwischenkontaktteil 36 des Seitenkontaktes 6 miteinander in Kontakt gebracht und gleichzeitig werden der bewegliche Abschnitt des Zwischenkontaktteils 56 und der feststehende Kontaktteil 55 des Mittelkontaktes 7 durch das Betätigungsteil 51 am Haltestab 50 miteinander in Kontakt gebracht. Dadurch wird jeweils die andere Trennstrecke in jeder Schaltkontaktanordnung geschlossen und die Glühlampe leuchtet auf.The ring 54 is gripped by the thread on the lamp base when the lamp is screwed in and is rotated upward by the rotation of the lamp against the force of the compression springs 52, i. H. pulled away from the body 5. The movable contact part 37 and the intermediate contact part 36 of the side contact 6 are brought into contact with one another and at the same time the movable section of the intermediate contact part 56 and the fixed contact part 55 of the center contact 7 are brought into contact with one another by the actuating part 51 on the holding rod 50. As a result, the other isolating path in each switching contact arrangement is closed and the incandescent lamp lights up.

Beim vorstehend beschriebenen Ausführungsbeispiel sind die auf den Seitenkontakt 6 und den Mittelkontakt 7 einwirkenden Kräfte entgegengesetzt gerichtet, um die Schaltkontaktanordnung zu schliessen. Es wird darauf hingewiesen, dass die auf den Seitenkontakt 6 einwirkende Kraft die gleiche Richtung haben kann wie die auf den Mittelkontakt 7 einwirkende Kraft. Um dies zu verwirklichen, müssen lediglich verschiedene Elemente der Schaltanordnung anders ausgelegt und angeordnet werden, was im Wissen des durchschnittlichen Fachmannes liegt.In the exemplary embodiment described above, the forces acting on the side contact 6 and the center contact 7 are directed in opposite directions in order to close the switch contact arrangement. It is pointed out that the force acting on the side contact 6 can have the same direction as the force acting on the center contact 7. To achieve this, only different elements of the switching arrangement have to be designed and arranged differently, which is within the knowledge of the average person skilled in the art.

Claims (4)

1. Lamp holder having shockproof voltage supply, which holder includes a center contact (7) and a side contact (6) relatively movable to each other by screwing down an incandescent lamp and a switching contact arrangement (35, 36, 37; 55, 56, 57), which when said incandescent lamp is screwed out is kept in open position by spring tension and which when screwing down said incandescent lamp is relatively movable to each other and movable into a closed position, characterized in that said side contact (6) and said center contact (7) each are connected with a respective terminal of the lamp holder through one switching contact arrangement having two disconnections, said side contact and said center contact (6, 7) are movably arranged within the housing of the lamp holder (1, 3) to effect two separate movements when screwing down said incandescent lamp and each switching contact arrangement is in operative connection with the side contact and the center contact (6, 7) to close said two disconnections by two separate movements.
2. Lamp holder according to claim 1, characterized in that said switching contact arrangement includes a stationary contact member (35, 55), onto which lead-in wires are connectable, a movable contact member (37, 57) which is part of said side contact or center contact (6, 7) and an intermediate contact member (36, 56) having a stationary and a movable portion, wherein when screwing down said incandescent lamp said movable contact member (37, 57) comes into contact with said stationary portion of said intermediate contact member (36, 56) and said movable portion of said intermediate contact member (36, 56) comes into contact with said stationary contact member (35, 55).
3. Lamp holder according to claim 2, characterized in that an operating member (45, 51) of insulating material is provided on said side contact and center contact (6, 7) to operate the respective movable portion of the intermediate contact member (36, 56) of the other switching contact arrangement.
4. Lamp holder according to claim 2, characterized in that said movable contact members (37, 57) are arranged such that the directions of movement are parallel or antiparallel.
EP80106075A 1979-10-10 1980-10-07 Lampholder with arrangement to prevent access to live wires Expired EP0027244B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106075T ATE11716T1 (en) 1979-10-10 1980-10-07 LIGHT BULB SOCKET WITH TOUCHSAFE POWER SUPPLY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH9119/79A CH648699A5 (en) 1979-10-10 1979-10-10 BULB SOCKET WITH TOUCH-PROOF VOLTAGE.
CH9119/79 1979-10-10

Publications (2)

Publication Number Publication Date
EP0027244A1 EP0027244A1 (en) 1981-04-22
EP0027244B1 true EP0027244B1 (en) 1985-02-06

Family

ID=4348536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106075A Expired EP0027244B1 (en) 1979-10-10 1980-10-07 Lampholder with arrangement to prevent access to live wires

Country Status (6)

Country Link
EP (1) EP0027244B1 (en)
AT (1) ATE11716T1 (en)
CH (1) CH648699A5 (en)
DE (1) DE3070121D1 (en)
DK (1) DK428680A (en)
WO (1) WO1981001082A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181907A1 (en) * 1984-05-25 1986-05-28 Kudos Lighting Limited Lampholder
IN165839B (en) * 1985-02-05 1990-01-20 Haden D H Ltd
IL82795A0 (en) * 1987-06-08 1987-12-20 Shimon Avitan Electric safety socket
US5267116A (en) * 1988-01-28 1993-11-30 Aditan, Inc. Electrical safety socket
GB8823666D0 (en) * 1988-10-08 1988-11-16 Ranton & Co Ltd Protected lampholder
US5485340A (en) * 1991-07-08 1996-01-16 Aditan, Inc. Electrical supply safety plug
US5426552A (en) * 1991-07-08 1995-06-20 Aditan, Inc. Electrical supply safety socket
IT1280177B1 (en) * 1995-05-26 1998-01-05 Gabriele Centazzo ANTI-ACCIDENT LAMPHOLDER
GB2307113B (en) * 1995-11-08 1999-04-28 Itt Ind Ltd Improvements in or relating to coaxial connectors
US6030240A (en) * 1998-05-06 2000-02-29 Itt Manufacturing Enterprises, Inc. Coaxial connectors
EP1050936A1 (en) * 1999-05-03 2000-11-08 Dolsimer Investment S.A. Safety bulb holder
WO2000067349A1 (en) * 1999-05-03 2000-11-09 Dolsimer Investment S.A. Safety socket
WO2002084814A1 (en) * 2001-04-13 2002-10-24 Jacques Bayon Universal electric socket
CA2635987A1 (en) * 2006-01-20 2007-09-07 Carsten Hornshoej Poulsen A touch-safe socket
CN103779735B (en) * 2011-12-24 2016-05-18 深圳市中科电工科技有限公司 A kind of power connection structure device
CN110454754B (en) * 2019-07-29 2024-07-12 宁波唯尔电器有限公司 Lamp cap and lamp holder thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1539415B2 (en) * 1966-05-04 1978-10-12 Graff, Gerhard, 1000 Berlin Incandescent screw socket with contact protection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB312267A (en) * 1928-05-23 1930-04-24 Philips Nv Improvements in sockets for electric lamps
US2306741A (en) * 1940-09-26 1942-12-29 Roy G Miller Shockproof electric receptacle
GB547941A (en) * 1941-07-14 1942-09-17 British Thomson Houston Co Ltd Improvements relating to holders for electric lamp caps of the screw type
CH248108A (en) * 1947-01-28 1947-04-15 Schurter & Cie H Incandescent lamp holder equipped with contact protection.
FR1236572A (en) * 1959-06-09 1960-07-22 Safety system for electrical outlet
US3701074A (en) * 1971-09-07 1972-10-24 Claude Oster Grounding receptacle
FR2374759A1 (en) * 1976-12-20 1978-07-13 Munz Emile Three-pin electrical safety socket - has sleeve contacts covered by insulating bridge moved away only when both contact pins are simultaneously inserted

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1539415B2 (en) * 1966-05-04 1978-10-12 Graff, Gerhard, 1000 Berlin Incandescent screw socket with contact protection

Also Published As

Publication number Publication date
DK428680A (en) 1981-04-11
WO1981001082A1 (en) 1981-04-16
CH648699A5 (en) 1985-03-29
DE3070121D1 (en) 1985-03-21
EP0027244A1 (en) 1981-04-22
ATE11716T1 (en) 1985-02-15

Similar Documents

Publication Publication Date Title
EP0027244B1 (en) Lampholder with arrangement to prevent access to live wires
EP2609365B1 (en) Luminaires, especially luminaires to be operated in lamp holders for fluorescent lamps
DE2441318C2 (en) Safety device for electrical connection devices
DE615893C (en) Threaded base for electric incandescent lamps, in which an insulating material base containing the contacts has spring tongues engaging in the incandescent lamp vessel
DE2505908A1 (en) COUNTER
DE756795C (en) Switching socket for switching operations to be carried out by inserting and removing a current-carrying plug
DE1539415C3 (en) Glow lamp screw socket with contact protection
DE3013985C2 (en)
DE818216C (en) Base for two-filament light bulbs
DE19909695C2 (en) Two-part bulb holder
DE734789C (en) Multifilament incandescent lamp
DE556599C (en) Contact-proof lamp holder made of insulating material
DE468955C (en) Electric incandescent lamp screw socket with fixed contact protection ring
DE518496C (en) Touch-proof socket for electrical current collectors
DE201564C (en)
DE374309C (en) Electric multi-filament light bulb
DE19726230C2 (en) Electrical connection element
DE572468C (en) Equipment on electrical switches, socket outlets and other electrical connection fittings for switching on flashing or normal light
AT15579B (en) Device for switching incandescent lamps on and off.
DE606210C (en) Switch for electric hand lamps equipped with accumulator and incandescent lamp, especially for electric mine lamps
DE541551C (en) Contact protection for the sockets of electric tube lamps with bases at both ends
DE592445C (en) Electric lamp with power source and self-actuating and manually operated switch arranged in the lamp base
DE209757C (en)
DE388813C (en) Electric multi-filament light bulb
DE490376C (en) Protection device against contact with live parts in screw sockets of electric light bulbs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19811005

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL SE

REF Corresponds to:

Ref document number: 11716

Country of ref document: AT

Date of ref document: 19850215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3070121

Country of ref document: DE

Date of ref document: 19850321

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19851031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19891010

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19891011

Year of fee payment: 10

Ref country code: AT

Payment date: 19891011

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19891013

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19891018

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19891030

Year of fee payment: 10

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19891031

Year of fee payment: 10

Ref country code: GB

Payment date: 19891031

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19901007

Ref country code: AT

Effective date: 19901007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19901008

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19901031

BERE Be: lapsed

Owner name: NEUENSCHWANDER + CO. A.G.

Effective date: 19901031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19910501

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19910702

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 80106075.7

Effective date: 19910603