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

Claim 17:
18. Apparatus operative to provide emergency egress from an interior area of a bus, wherein the interior area the bus is bounded on a lower side by a bus floor,
wherein the bus includes a bus body having an emergency exit opening that is closable by an emergency exit door,
wherein the emergency exit door is immediately openable from at least one of the interior area or an exterior area of the bus,
wherein the emergency exit door is changeable between a latched closed condition in which the emergency exit door is held in a closed position closing the emergency exit opening, and an openable condition in which the emergency exit door is immediately changeable between the closed position and an open position in which a at least a portion of the door is disposed away from the emergency exit opening,
the apparatus comprising:
at least one hinge, wherein the emergency exit door is rotationally movably mounted in operative connection with the bus body through the at least one hinge, wherein the at least one hinge enables the emergency exit door to be rotatably movable relative to the bus body about a horizontally extending axis,
wherein a hinge side of the emergency exit door is in operative engagement with the at least one hinge, wherein the hinge side of the emergency exit door is positioned at a lower end of the emergency exit door when the door is in the door closed position,
wherein in the openable condition of the emergency exit door, the emergency exit door is movable about the axis such that a further door side that is disposed at an opposed end of the door from the hinge side is rotationally and vertically movable away from the exit opening to the door open position, wherein in the door open position the further door side is at a vertical level that is lower than a vertical level of the further door side in the door closed position,
a ramp, wherein the ramp is movably mounted in operative connection with the emergency exit door,
wherein in door movement toward the door open position the ramp is automatically caused to move relative to the emergency exit door to extend between the emergency exit door and ground,
whereby with the emergency exit door in the door open position and in an extended position of the ramp persons in the interior area of the bus are enabled to traverse the emergency exit door and the ramp to reach the ground.