| 摘要 |
A passenger boarding bridge for narrow body aircraft that does not require a bubble section. On the right hand half of the cab floor lengthwise there are two openings, and connected to the floor at each opening there is an up-folding hinged floor board. On the back side of floor there are gas springs that are used to flip up the hinged boards and also a cylinder that can move an extension board forward and backward at the front end of floor. At the bottom of the floor there are electrical locks for locking the hinged floor boards when they are in the horizontal position. On the back side of the floor there is also a cylinder to drive the safety cylinder at the front end of the floor in a lateral direction. Above the first piece of the frame of the canopy two extra short are added, the bottom part of which is split but connected with a hinge. The front part of the frame is covered with foam rubber. Attached to the canopy frame is a gas spring to open up the frame into a multisided shape. An actuator actuates the opening and closing of the canopy. This boarding bridge is not only suitable for use with large and medium sized aircraft but is at the same time suitable for small aircraft.
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