DK172343B1

DK172343B1 - Clutch housing cover for detachable towbar

Info

Publication number: DK172343B1
Application number: DK110095A
Authority: DK
Inventors: Per Fauerskov
Original assignee: Brenderup Trailers As
Priority date: 1995-09-29
Filing date: 1995-09-29
Publication date: 1998-04-06
Also published as: EP0850158A1; AU7125596A; DK110095A; WO1997012784A1

Description

DK 172343 B1DK 172343 B1

Opfindelsen vedrører en stikdåse til strømforsyning af en via en i et koblingshus monteret aftagelig trækstang trukket anhænger til biler.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a socket for power supply of a towbar towed by a detachable towbar mounted in cars.

En trækforbindelse til påhængskøretøj består af en 5 kuglekobling, som er anbragt på påhængskøretøjet, og et træktøj monteret under/bagpå den trækkende bil. Dette træktøj er udført med en koblingskugle, som overfører kraften til koblingsdelen. Træktøjer passer dårligt visuelt ind i designet af en moderne bils bagende, og 10 kuglen kan være i vejen ved brug af bagagerum. For at undgå slagmærker fra kuglen, som desuden almindeligvis er olieret, er der udviklet aftagelige anhængertræk, hvor trækstangen med sin stang kan fjernes fra den øvrige del af anhængertrækket og gemmes som en enhed, 15 f.eks. i bagagerummet, indtil der er brug for den.A trailer coupling consists of a 5 ball coupling mounted on the trailer and a towing device mounted under / behind the towing vehicle. This drawbar is provided with a coupling ball which transmits the power to the coupling part. Drawing tools fit poorly visually into the design of a modern car's rear end, and the 10 ball may be in the way when using the trunk. In order to avoid impact marks from the ball, which is additionally commonly oiled, detachable towbar features have been developed where the tow bar with its rod can be removed from the other part of the towbar and stored as a unit, e.g. in the trunk until needed.

Når trækstangen fjernes, efterlades der et hul, som må dækkes af et dæksel, blandt andet for at undgå, at der trænger snavs ind, hvilket kan vanskeliggøre indsætning af trækstangen igen. I forbindelse med 20 anhængertrækket befinder sig en stikdåse til strømforsyning af anhængeren, så signalapparaterne kan fungere sammen med bilens øvrige elektriske installation. Denne stikdåse er dækket med et dæksel for at forhindre indtrængen af snavs eller vand. Det vil 25 sige, at der ved bilens bagende befinder sig to dæksler, som begge skal fjernes, når der skal køres med påhæng.When the drawbar is removed, a hole that must be covered by a cover is left, among other things, to prevent the ingress of dirt, which can make insertion of the drawbar difficult again. In connection with the 20 tow hitch there is a socket to power the trailer so that the signal devices can work with the car's other electrical installation. This socket is covered with a cover to prevent the ingress of dirt or water. That is, there are two covers at the rear of the car, both of which must be removed when driving with a trailer.

Det opfattes som en ulempe at skulle manøvrere med to dæksler, foruden en løs trækstang samt det stik, som skal isættes stikdåsen.It is perceived as a disadvantage to have to maneuver with two covers, in addition to a loose drawbar and the plug to be inserted.

30 Det er opfindelsens formål at forenkle omstillingen af en bil fra solo tilstand til bil med påhæng, ligesom det er formålet at skjule stikdåsen for at opnå et bedre design.The object of the invention is to simplify the conversion of a car from a solo mode to a car with a trailer, as well as the purpose of concealing the socket for a better design.

Dette opnås med en stikforbindelse ifølge 35 opfindelsen, som er særegen ved, at stikdåsen er anbragt på en på en fast del hængslet klap, som er egnet til at lukkes som dæksel over trækstangens koblingshus. Herved DK 172343 B1 2 opnås den fordel, at man i én bevægelse får adgang til såvel stikdåse som koblingshus.This is achieved with a plug connection according to the invention, which is special in that the socket is arranged on a fixed part hinged flap suitable for closing as cover over the coupling housing of the drawbar. Hereby DK 172343 B1 2 obtains the advantage of having access to both socket and coupling housing in one movement.

En udførelsesform for opfindelsen er særegen ved, at en tætning mellem klappen og koblingshuset er 5 frembragt ved en eftergivelig ring anbragt udenom stikdåsen. Herved opnås en god pasning mellem tætning og koblingshus, ligesom klappen herved kan fastholdes i lukket stilling.An embodiment of the invention is peculiar in that a seal between the flap and the clutch housing is provided by a resilient ring disposed around the socket. This ensures a good fit between the seal and the clutch housing, and the flap can thus be held in the closed position.

En udførelsesform for opfindelsen er særegen ved, 10 at klappens yderside er tilpasset overfladestrukturen i de omgivende bildele. Herved opnås det, at en bil uden anhængertræk ikke tydeligt kan opfattes som en bil, der kan omstilles, hvilket opfattes som en æstetisk fordel.An embodiment of the invention is peculiar in that the outside of the flap is adapted to the surface structure of the surrounding car parts. Hereby it is achieved that a car without a towbar cannot clearly be perceived as a convertible car, which is perceived as an aesthetic advantage.

En yderligere udførelsesform for opfindelsen er 15 særegen ved, at ledningerne til stikdåsens enkelte udtag er ført igennem klappens hængselstap, som er hul. Herved opnås en sikker og beskyttet fremføring af ledningerne, som tillige får en længde, som er passende for at forhindre, at de knækker ved gentagen brug af klappen.A further embodiment of the invention is peculiar in that the wires for the individual outlet of the socket are passed through the hinge pin of the flap which is hollow. This ensures a secure and protected feeding of the cables, which also have a length which is suitable to prevent them from breaking through repeated use of the flap.

20 En yderligere udførelsesform for opfindelsen er særegen ved, at forbindelserne til stikdåsens enkelte udtag er udformet som trykt kredsløb i låget fra udtagene til hængslet og i den faste del fra hængslet til klembøsningerne til forbindelse med bilens 25 elektriske system, hvorhos hængslet er forsynet med giidekontakter og børster til overføring af strømmen gennem hængslet. Herved undgås fuldstændig en bevægelig ledningsføring i forbindelse med stikdåsen, og den faste del kan forbindes direkte med bilens elektriske system.A further embodiment of the invention is peculiar in that the connections to the individual outlet of the socket are designed as a printed circuit in the lid from the outlets to the hinge and in the fixed part from the hinge to the clamping bushes for connection to the electrical system of the car, in which the hinge is provided with guide contacts. and brushes for transferring the current through the hinge. This completely avoids a movable wiring in connection with the socket and the fixed part can be connected directly to the car's electrical system.

30 Ved åbningsbevægelsen renses giidekontakterne, således at der altid vil være god forbindelse.30 During the opening movement, the guide contacts are cleaned so that there will always be good connection.

Opfindelsen skal herefter beskrives nærmere under henvisning til tegningen, hvorThe invention will now be described in more detail with reference to the drawing, in which

Fig. 1 viser et snit i et koblingshus samt en 35 klap ifølge en udførelsesform for opfindelsen, ogFIG. 1 is a sectional view of a coupling housing and a flap according to an embodiment of the invention; and

Fig. 2 viser det samme set fra bilens bagende.FIG. 2 shows the same from the rear of the car.

På Fig. 1 ses et koblingshus 1 i bilens bagende, DK 172343 B1 3 hvori en ikke vist trækstang kan fastlåses.In FIG. 1, a coupling housing 1 is seen in the rear of the car, DK 172343 B1 3 in which a drawbar not shown can be locked.

Koblingshusets omgivelser, den faste del 2, bærer den ene halvdel af et hængsel 3, som via en hængselstap 4 er forbundet med den anden halvdel 5, som er anbragt i 5 forbindelse med låget 6. Låget 6 kan vippes frem for koblingshuset 1, som vist punkteret. På lågets inderside er anbragt en stikdåse 7, og ledningsføringen forløber skjult i låget som vist ved 8. I den faste del 2 er tilsvarende den anden ende af ledningsføringen, som 10 afsluttes med klembøsninger til tilslutning til bilens elektriske system, dvs. baglygtebelysning, nummerpladebelysning, bremselys, blinklys og eventuelt baklys. Hertil kan komme hovedstrømledning til brug for en campingvogn. I lukket tilstand befinder stikdåsen sig 15 indeni koblingshuset, og en ringformet pakning 9 slutter tæt til koblingshusets yderste del. Indkilingen af pakningen er tilstrækkelig til både at sikre tæthed og til at fastholde klappen i lukket tilstand.The environment of the coupling housing, the fixed part 2, carries one half of a hinge 3, which is connected via a hinge pin 4 to the other half 5, which is arranged in connection with the lid 6. The lid 6 can be tilted forward of the coupling housing 1, which shown punctured. On the inside of the lid is a socket 7 and the wiring runs concealed in the lid as shown at 8. In the fixed part 2 is correspondingly the other end of the wiring, which is terminated with clamping bushes for connection to the car's electrical system, ie. taillight, license plate light, brake light, turn signal and, if applicable, taillight. In addition, a main caravan can be used for a caravan. In the closed state, the socket 15 is inside the coupling housing and an annular gasket 9 joins close to the outer part of the coupling housing. The wedging of the gasket is sufficient to ensure both tightness and to keep the flap closed.

På Fig. 2 er vist, hvorledes ledningerne 8 føres 20 fra låget igennem hængseltappen 4, som er hul, og videre i den faste del 1. Der er tillige vist en rigle 10, som i koblingshuset 1 sørger for fastlåsning af trækstangen, når den er monteret.In FIG. 2 is shown how the leads 8 are guided 20 from the lid through the hinge pin 4, which is hollow, and further in the fixed part 1. There is also shown a bolt 10 which in the coupling housing 1 provides locking of the drawbar when mounted.

Der er mulighed for optimering af detailler ved 25 opfindelsen, f.eks. kan hængslet 3, 4, 5 være forsynet med et indbygget stop, så det kun kan åbnes 180° og med klik, så det kan fastholdes her. En ekstra klap, som bærer tætningsmidler på begge sider, kan yderligere være hængslet til klappen, så den i lukket tilstand dækker 30 over stikdåsen og i åben tilstand fastholder stikket ligesom ved traditionelle anhængerstikdåser. I helt sammenklappet tilstand vil tætningsmidlerne på ydersiden af denne ekstra klap tætne mod koblingshuset. Endvidere kan hængslet afhængig af bilmodel være anbragt såvel 35 over som under i stedet for blot på siden af koblingshuset .It is possible to optimize details of the invention, e.g. For example, the hinge 3, 4, 5 can be fitted with a built-in stop so that it can only be opened 180 ° and with a click so that it can be held here. An additional flap which carries sealants on both sides may further be hinged to the flap, so that in closed condition it covers 30 over the socket and in the open state retains the plug as with traditional trailer sockets. In fully collapsed condition, the sealing means on the outside of this additional flap will seal against the coupling housing. Further, depending on the car model, the hinge may be positioned both above and below instead of merely on the side of the clutch housing.

Claims

Socket for power supply of a towbar mounted via a detachable towbar mounted in a coupling housing, characterized in that the socket is mounted on a fixed part hinged flap suitable for closing as cover over the towbar's coupling housing.

Socket according to claim 1, 10, characterized in that a seal between the flap and the coupling housing is provided by a resilient ring located around the socket.

Socket according to claim 1 or 2, characterized in that the outside of the flap is adapted to the surface structure of the surrounding car parts of the clutch housing.

Socket according to any one of claims 1 to 3, characterized in that the wires for the individual outlet of the socket are passed through the hinge pin of the flap 20 which is hollow.

Socket according to any one of claims 1 to 3, characterized in that the connections to the individual socket of the socket are designed as a printed circuit in the lid from the sockets to the hinge and in the fixed part from the hinge to the clamping bushes for connection to the electrical system of the car, where the hinge is provided with guide contacts and brushes for transferring the current through the hinge. 30