Patent ID: 11926201
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B  A  G | IPC A  B  G

Claim 14:
15. The apparatus according to claim 1 and further comprising:
a ramp hinge, wherein the ramp is rotatably movably mounted in operative connection with the emergency exit door through the ramp hinge,
wherein in the open position of the emergency exit door the ramp is enabled to rotate in operatively engaged connection with the emergency exit door between the extended position and the retracted position about a ramp hinge axis,

at least one ramp spring, wherein the at least one ramp spring is in operative connection with the ramp,
wherein in the open position of the emergency exit door the at least one ramp spring is operative to automatically cause the ramp to rotatably move about the ramp hinge axis from a retracted position to the extended position, wherein in the extended position the ramp extends between the emergency exit door and ground.