DE1780050C3 - Adapter bulb for creating an external electrical connection between motor vehicles and trailers - Google Patents

Description

The invention relates to an adapter bulb for insertion into the bulb socket of the rear light of a Motor vehicle for the purpose of creating an external electrical connection to the lighting system of an attachment% consisting of a base with a contact section, a glass bulb with Filament and an outgoing electrical line.

Facilities are known which make it possible the outgoing lines for the trailer lighting on the rear light of the motor vehicle to connect. U.S. Patent 3,335,389 includes trailer lights that are used by motor vehicles is tapped, the outgoing line consists of an additional base that is inserted into the Bulb socket of the rear light of the motor vehicle can be used. This additional base has Opposite grooves or slots in which the outgoing lines are guided. In the An ordinary adapter bulb is now inserted into the additional socket by means of a bayonet lock. In addition a special base size of the pear base must be made for this additional base, as the The additional socket must fit into the bulb socket of the rear light. The pear base must therefore be smaller than normally be, which requires an additional pear model. Furthermore is between the additional socket contacts and a contact plate arranged on the pear base, the contacting of which is only possible by means of Compression springs takes place. This creates an additional contact point that contaminates and corrodes can.

The invention is therefore based on the object of providing an adapter bulb of the type mentioned at the beginning To create a genus in which a normal pear socket is also used for a normal pear socket can be.

The solution to this problem is, according to the invention, that the glass bulb is eccentric in the base is arranged and the outgoing line passed inside the base and with the ends of the filament connected is.

The invention has the advantage over the known device for creating a connection between motor vehicles and trailer, well !. ' a common, standardized pear socket can be used for an ordinary pear socket. "The ö'-c eccentric arrangement of the. GIa -, - koibens in the Biriv.'nsockei creates space for the outgoing lines Bezii »

χα for the bulb socket, only the normal contacts are available as with any conventional adapter tube. There is also no need for additional power supply points that can additionally cord or pollute.

Use of the appropriate adapter The tedious time required for connection is reduced, as it is no longer necessary to u <e remove internal connection panels from the vehicle in order to sort the wires and

ao to close. The connection is made simply by using the existing rear light glass the taillight, take out the bulb in the taillight and replace it with a Adapter bulb according to the present invention

a5 exchanges.

In a further embodiment according to the invention, the base has tapered slots for insertion the outgoing line. When the base is inserted into the socket, the cables not be squeezed.

An example of the invention is shown in the drawing and described below.

F i g. 1 shows in a perspective illustration the external electrical connection between

using the rear light of a station wagon and the electrical system of a trailer the adapter bulb according to the invention;

F i g. 2 shows a side view of a preferred embodiment of the adapter bulb with associated

gen connecting cables and protective sleeves;

F i g. 3 shows this preferred adapter bulb arrangement in an exploded view;

F i g. 4 shows a top view of another base of the adapter bulb, the connection between

see the lines leading to the filament and the lines belonging to the trailer illustrated will;

F i g. 5 shows a side view of FIG. 4, and

F i g. 6 shows a top view of FIG. 4 with

Associated connecting lines, with the detachable base device shown in its correct position is.

As can be seen from Fig. I, a conventional one Trailer 10 using a coupling

device 14 attached to station wagon 12. The reference number 16 denotes generally the stop or Rear light assembly of station wagon 12 including socket 18. Lead wires 20 of the electrical system of the trailer 10 extend along the coupling device 14 and terminate in fittings 22. The lighting system of the trailer itself is of a conventional type, forming does not form part of the present invention and is also not shown.

The preferred adapter bulb device 24 shown in FIGS. 2 and 3 comprises a base 26, which ends at its lower end in a switch bayonet double contact, as well as one generally with

3 4

28 he / cichiiL-th glass flask. A Glülifa adapter brain is located inside the base, in two embodiments of the base, the Jn and the glass bulb 28, is shown in FIG. 4 to ή illustrate in FIG. 29, which ends in the line 30, the glass bulb in which the reference number 50 denotes a protective sleeve 34 contained in a housing * 2 with ansdiluBddrhlen, the housing -hene line 32 aneclölcl is. In the same way, the long filament 3t in the line 38, which is soldered to 56, ends in contacts 54 at which glow threads det the long filament 3t. On adjacent ropes, the line ib eye housing 52 is provided with connecting wires and there are tapered skis, i.- _c is soldered. The inclusions 40 and 42 form extensions 58 which are cut with the lines 6 "/i.^-. -Ings of the filaments 29 and 31 and are at the base and with the filament door seams 56 in Beri ·. ,, - kel 26 soldered in place. As can be seen from Fig. 2, ο 5 / u. ·, - if the reference number 23 is seen generally sleeve-like, the conventional pins 6 are “a ^ c connection pieces grinded with the associated receptacles, while the end of the penalises .._ ah ^ - to receive the corresponding connection is inclined in order to be matched with a base section M pieces 22 (Fig. 6), cue Verbm As from Fi P. 2 and FIG. 3, the glass connection is seated between the filament wires 56 and Jc-. Piston 28 eccentrically in the base 26, so that between lines 60 is achieved by bending over the Dra.π, .lern lower part of the piston 28 and a selected 56 and soldering it. If the base section M th section of the base 26 space remains free. By bringing this “eccentric” arrangement into its correct position, sufficient filament wires 56 are soldered and cut off flush with space for the lines of section 64 provided with connecting wires. The lines 32 and 36 created so that this? along the wire ends in the inner walls of the base 26 (not shown) and the connecting pieces can finally be brought into contact with the filament 50 or 38 with the corresponding connection pieces for the purpose of decorative connection. F i g. I) the electrical system of the trailer.

1 sheet of drawings

Claims (2)

i 780 050 PaliiiVa prerequisite: 1. Adapierbime Aim inserting into the office the rear light of a motor vehicle for the purpose of switching an external electrical one Connection to the lighting system of a trailer, consisting of a base with a contact section, a glass bulb with a filament and an outgoing electrical Line, characterized dai? the glass bulb (28) eccentrically in the base (26) is arranged and the outgoing line (32, 36, 34) guided within the base and with the ends of the filament (29, 31) is connected. 2. Adapter bulb according to claim 1, characterized in that that the base tapered slots (58) for inserting the outgoing line having.