Head for diesel fuel filling pipe of tank of vehicle, has flap driven by tube from closed position to released position, and elongated flexible curved arms projected from periphery of ring and supported on inner surface of housing

摘要

The head has a closure flap pivoted with respect to a false proof actuating ring (2) from a closed position to a released position. The ring has an actuating portion (12) cooperated with the flap, so that the flap is released when the ring is spaced radially by insertion of a diesel supply tube. The flap is elastically stressed towards the closed position and driven by the tube from the closed position to the released position. Elongated flexible curved arms (16) are projected from a periphery of the ring, and supported on an inner surface (27) of housing. The flap partially masks a passage orifice and forms a stop for a lead-free petrol supply tube, when the flap is in the closed position. The flap does not mask the passage orifice, when the flap is in the released position. The ring and the arms are made of an elastic material i.e. plastic material.