DE1051394B - Socket with punched thread for electric light bulbs with threaded base - Google Patents

Description

GERMAN

The known sockets for incandescent lamps with a threaded base have a socket pressed into the socket Thread into which the thread of the lamp socket is screwed. One already has known to prevent the automatic loosening of these bulbs in interruptions of the thread A rubber ring is inserted into the socket, through which the backward movement of the base is automatically braked. In another known socket for small lamps with a punched thread the thread teeth are arranged like a locking tooth in one plane, so that the lamp base is only leads at this point. As a result of this poor guidance, such versions form when unscrewing the unusable lamp in a disadvantageous manner a considerable resistance, which leads to the destruction of the Lamp bulb can lead.

To remedy this, there is a socket with a punched thread for electric light bulbs with the threaded base according to the invention, the inner part of the socket that is turned inside and serves for guidance from several prongs extending almost over the entire length of the base, their angled ones Snap the tips resiliently into one or more threads of the base.

In the case of the socket according to the invention, the bulb base is pressed into the socket, with insert the tips of the prongs into one of the threads and hold the base in this position. There the prongs are sharp-edged, an automatic loosening is on the one hand excluded, while with the Turn back the light bulb for the purpose of replacement, rebound the relatively long prongs and so on do not hinder the rotation, especially since the tips of the prongs lead in the threads. Preferably one becomes in the arrangement according to the invention the inner ring in four pointed prongs split, but two or three points may be sufficient. If it proves necessary, you can make these spikes of different lengths, whereby the difference in length of the slope is advantageous of the thread in which the teeth engage.

The drawing illustrates an embodiment of the invention, namely represents

Fig. 1 shows a section through the socket with inserted bulb, while

Fig. 2 shows the rear view of the socket.

Socket with punched thread
for electric light bulbs
with threaded base

Applicant:
Westphalian
Metall-Industrie GmbH Lippstadt,
Lippstadt

Bernd Lenz ₁ Lippstadt, has been named as the inventor

The socket consists of the outer socket ring 1 and the inverted inner ring 2. According to the invention, this is divided into prongs 3 , the tips 4 of which are angled towards the base 5 of the incandescent lamp 6 in such a way that they insert into a thread.

Claims (3)

Patent claims: 1. Socket with punched thread for electric light bulbs with threaded base, thereby characterized in that the inverted inner part of the serving to guide the threaded base The socket consists of several prongs extending almost over the entire length of the base, their angled tips snap resiliently into one or more threads of the base. 2. Socket according to claim 1, characterized in that the prongs are of different lengths have, where the difference in length corresponds to the pitch of the base thread. 3. Socket according to claim 1, characterized in that two, three or four prongs are provided are. Considered publications:
German patent specification No. 892 187. 1 sheet of drawings