DE522965C

DE522965C - Socket for electric light bulbs fastened by means of a bayonet lock

Info

Publication number: DE522965C
Application number: DES87475D
Authority: DE
Inventors: Theodor Kaufhold
Original assignee: Siemens and Halske AG; Siemens AG
Current assignee: Siemens and Halske AG; Siemens AG
Priority date: 1928-09-15
Filing date: 1928-09-15
Publication date: 1931-04-17

Description

Es wird häufig die Aufgabe gestellt, elektrische Lampen in der Tiefe von abgeschlossenen schmalen Behältern anzuordnen, so z. B. in vorn abgedeckten Scheinwerfern, in Leuchtbuchstaben für Reklamezwecke und vor allem in Leuchtschaltbildern, die zur Überwachung eines elektrischen Energieverteilungsnetzes benutzt werden. Bei solchen Einrichtungen die Vorderwand zum Einsetzen oder Auswechseln der elektrischen Lampen aufklappbar anzuordnen oder umgekehrt bei fest angeordneter Vorderwand den Behälter abnehmbar zu machen, ist in der Regel nicht angängig. Einerseits wird die Einrichtung infolge des dadurch bedingten verwickelten Aufbaues verteuert, andererseits ist es praktisch sehr schwierig oder unmöglich, die Lampenkästchen, z. B. bei Leuchtschaltbildern, abzunehmen oder nach der Seite umzulegen, da dort die zu belichtenden Leuchtstreifen häufig derart geführt sind, daß sie sich mannigfach kreuzen und für die Abnahme räumlich im Wege stehen. Auch der Ausweg, nur den Teil der Behälter, an dem die Lampen selbst angeordnet sind, abnehmbar zu machen, verteuert die Anlage noch zu sehr. Ganz besonders fällt dies ins Gewicht für Leuchtschaltbilder, bei denen man eine außerordentlich hohe Zahl von Lampen verwenden muß.It is often the task of electric lamps to be enclosed in the depth of to arrange narrow containers, such. B. in front covered headlights, in illuminated letters for advertising purposes and especially in luminous circuit diagrams used to monitor an electrical power distribution network will. In such devices, the front wall for inserting or replacing the electric lamps is to be arranged so that it can be opened or vice versa, making the container detachable with a fixed front wall is generally not feasible. On the one hand, the facility is becoming more expensive due to the complex structure that it entails, on the other hand, it is practically very difficult or impossible to remove the lamp boxes, z. B. with luminous circuit diagrams, to decrease or to fold over to the side, there the light strips to be exposed are often guided in such a way that they are manifold cross and stand in the way of acceptance. Also the way out, only the part of the container where the lamps themselves are arranged to make them removable, makes the system too expensive. Most notably this is important for luminous circuit diagrams, where one is extraordinarily must use a large number of lamps.

Es wird weiter gefordert, daß die Lampen sich nicht durch Erschütterungen, wie z. B.It is also required that the lamps are not shaken by vibrations such. B.

durch den Straßenverkehr oder in Schalthäusern durch die Maschinen, lockern und erlöschen.through road traffic or in switching houses through the machines, loosen and go out.

Diese Forderungen einer als Massenware herstellbaren Lampenfassung, die bequem und billig in schmalen Behältern, in Schalttafeln, Schaltbildern 0. dgl. angeordnet werden kann und dabei nicht der Lockerung durch Erschütterungen unterworfen ist, lassen sich dadurch erfüllen, daß die Fassung für den Lampensockel zusammen mit der Lampe durch eine Vorrichtung nach Art eines Bajonettverschlusses in dem Befestigungsteil gehalten wird. Hierbei ist erfindungsgemäß zum Anpressen der Fassung an die Befestigungswand eine Feder vorgesehen, die gleichzeitig die Befestigung der Lampe in der Fassung unterstützt und bei einpoligem Anschluß der Lampe an das Gehäuse zur Stromleitung mit herangezogen werden kann.These demands a mass-produced lamp holder that is convenient and Can be arranged cheaply in narrow containers, in control panels, circuit diagrams, etc. and is not subject to loosening by vibrations, can thereby meet that the socket for the lamp base together with the lamp by a device in the manner of a bayonet lock is held in the fastening part. According to the invention, this is for pressing the socket on the mounting wall is provided with a spring which at the same time supports the attachment of the lamp in the socket and when the lamp is connected to the housing with a single pole connection, it is also used to conduct electricity can be.

In Abb. ι ist ein Ausführungsbeispiel der neuen Fassungsvorrichtung im Längsschnitt dargestellt. 1 ist ein Blechring, der über einer kreisförmigen Öffnung beispielsweise in einer Schalttafel aufgeschraubt wird; er ist in Abb. 2 in Draufsicht dargestellt. Der innere Rand des Ringes ist an zwei Stellen 2, 3 mit Ausnehmungen versehen. Statt dieses Ringes kann auch die Tafelwandung selbst mit entsprechenden Ausschnitten versehen sein. Die Lampenfassung selbst besteht aus dem mitIn Fig. Ι is an embodiment of the new mounting device in longitudinal section shown. 1 is a sheet metal ring that is placed over a circular opening, for example in a Control panel is screwed on; it is shown in Fig. 2 in plan view. The inner one The edge of the ring is provided with recesses at two points 2, 3. Instead of this ring the panel wall itself can also be provided with corresponding cutouts. the The lamp holder itself consists of the with

'-■) Von dem Patentsucher ist als der Erfinder angegeben worden:'- ■) The patent seeker stated as the inventor:

Theodor Kaufhold in Berlin.Theodor Kaufhold in Berlin.

Claims

the one pole of the power source connected metal cylinder 4, which after one end the known slots 5 for the bayonet attachment the lamp with SwansockeL at the other end has a beaded edge 6 having. Two slots 7 are provided approximately in the middle. This protrudes through it Crossbar 8 made of insulating material between the contact plate 9 and the insulating cylinder 10 is jammed. The contact plate 9 is attached to a metal rod 11, the one hole 12 for introducing the to be connected to the second pole of the power source Owns supply line. This supply line can be clamped by a screw 13 will. The corrugation of one end 14 of the metal cylinder 11 creates a fixed connection secured between contact plate, insulating cylinder and crossbar. Around the lower part of the metal cylinder 4 is a Helical spring 15 placed, on the one hand against the projecting edge 6, on the other hand against the crossbar 8 or, if the socket is inserted, against the ring 1 applies.

The lamp to be used has a base, which is designed like the usual screw base, i.e. a contact plate perpendicular to the axis and a sleeve-shaped one has coaxial contact ring, but has two pins laterally, which in the slots 5 according to Can intervene in the manner of a bayonet lock. The lower contact area indicated by dotted lines 9 'of the base presses on the contact plate 9 against the action of Coil spring 15, as this supports the metal cylinder 4 and the crossbeam 8 with which the Contact plate 9 is rigidly connected, pressed apart.

The lamp holder can be inserted into the bottom of the container by sliding the Crossbar 8 passes through the recesses 2, 3 of the ring 1, the Helical spring 15 applies against the ring and is squeezed. Then you turn the socket about a right angle, so that the crossbar rests on the inwardly protruding projections of the ring. The coil spring 15 holds at the same time the lamp socket on the ring or the base plate and secures at the same time Sufficient contact pressure between the socket and the lamp base. It also represents the electrical connection of the metal cylinder 4, i.e. the one-pole of the electrical Lamp with the container or housing safe in which the base is inserted.

The new version is particularly notable for its cheap production due to the slim shape, the lateral dimensions of the to be used tubular lamp does not noticeably exceed. The versions can therefore be very be arranged close to each other.

Ρλ τ UN TANSiMiH cue:

ι. Socket for electric light bulbs fastened by means of a bayonet lock, in particular for installation in headlights or switch panels, characterized in that that an insulating body (10) carrying the crosspiece (8) within the socket body (4) under the action of a itself against the crosspiece (8) and an abutment (6) on the socket body (4) supporting The spring (15) is arranged to be axially displaceable - and so the spring is the crosspiece (8) against the mounting wall (1) and at the same time the center contact (9) of the socket arranged on the crosspiece presses against the center contact of the lamp cap.

2. Lamp socket according to claim i, characterized characterized in that the cylindrical socket body (4) as an abutment for the spring (15) has a beaded edge (6) owns.

3. Lamp socket according to claim 1, characterized characterized in that inside the ga insulating body (10) of the carrier (12) for the center contact (9) is arranged.

1 sheet of drawings

BERLIN. THOUGHT IN THE