US Patent 7632118 Adapter

An adapter for the coupling of two different electrical plugs, in particular for vehicles, comprises an electrically conductive cage open at two ends, in particular pin-like electrical contacts insertable into the cage with differing contact ends matched to the respective plug and in particular two differing insulation parts insertable into the cage and matched to the respective plug for the fixing of the electrical contacts. The cage, the electrical contacts and the insulation parts supporting them are designed such that different receptacle-like plug receivers matched to the respective plug result in the region of the two open ends of the cage.