Weatherproof track and contact for electrical feeding of road vehicles

Contact device connectable to a vehicle and adapted to co-act mechanically and electrically with a track comprising an electric conductor put under voltage and located in a road section on which the vehicle is travelling, in order to supply electric voltage to at least one electric motor which propels the vehicle, wherein the contact device is displaceable upwards, downwards and laterally and comprises at least one current collector and at least one cleansing device, the current collector comprises a sliding contact configured to be brought into mechanical and electrical contact with at least a vertical side wall of the track, wherein the cleansing device comprises a front portion inclined at an acute angle with respect to the bottom part of the cleansing device, and wherein elastic material is provided on opposite sides of the front portion of the cleansing device facing the vertical side walls of the track, and wherein the width of the cleansing device including the elastic material is substantially the same as or larger than the width of the track such that a substantially fluid tight seal is formed between the cleansing device and the vertical side wall of the track.