Patent ID: 7900307
Filing Date: 2011-03-08
Classification: B64F

Abstract:
1. A boarding bridge, comprising: a plurality of tubular gangway units telescopically moveable relative to one another in a longitudinal direction, wherein the plurality of tubular gangway units comprise at least an inside gangway unit and an outside gangway unit, the inside gangway unit being disposed inside of the outside gangway unit; and a variable-length walkway portion being configured to move between a passage position height and an outside-of-passage position height, the outside-of-passage position height being lower than the passage position height; wherein a length of the walkway portion at the passage position height changes when the inside and outside gangway units move relative to one another, wherein a first end of the walkway portion is mounted to the inside gangway unit so as not to move in position with respect to the inside gangway unit, wherein a second end of the walkway portion comprises a position changing section that permits the walkway portion to move between the passage position height and the outside-of-passage position height, the position changing section being integrally mounted to the outside gangway unit, wherein the position changing section comprises a rotating body rotatably mounted in a fixed position to the outside gangway unit such that an axis of the rotating body is parallel to a width direction of the walkway portion, and wherein the walkway portion is tensioned to wind at least partially around the rotating body.