Emergency exit in vehicles, particularly in aircraft and spacecraft

An emergency exit in vehicles, particularly in aircraft or spacecraft, wherein a wall of the vehicle defines an emergency exit opening, a door sealingly placable against and lockable with the vehicle wall, the door capable of being moved outwardly through the opening for completely opening the emergency exit, the opening and the door defining first and second longitudinal sides and a top side, and an upper corner at the top of the second side and a diagonally oppositely located lower corner at the bottom of the first side, the improvement comprising first and second pretensionable expanding elements each having first and second ends, the first end of the first element attached to the door on the second longitudinal side near the upper corner and the second end releasably attached to the vehicle wall at a point located on the top side approximately diagonally upwardly across the upper corner, the first end of the second expanding element attached to the door on the first longitudinal side near the lower corner and the second end releasably connected to the vehicle wall at a point on the first longitudinal side approximately one-fourth from the top side, so that the second expanding element extends essentially parallel to the first longitudinal side.