| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a boarding bridge having an inexpensive and rigid structure with little trouble capable of suppressing the risk of falling by eliminating steps between traffic passage parts of adjacent passage bodies. <P>SOLUTION: The boarding bridge 1 is structured so that a base end tunnel 7 and a tip end tunnel 9 are fitted to each other in a telescopic form to make expansion and contraction in making relative movement in the longitudinal direction. The passage part of the tip end tunnel 9 is provided with: a passage member 33 whose one end is connected to the end part of a fixed passage 29 of the base end tunnel 7 to have a tip end passage part 31 of at least predetermined length in the longitudinal direction, and the other end is mounted to the base end tunnel 7; a sprocket 35 which is mounted to the lower part of the tip end part of the tip end tunnel 9 so that the position is not moved, and vertically guides a passage member 33; a sheave 37 which is mounted to the lower part of rear end part of the tip end tunnel 9 so that the position is not moved, and vertically guides the passage member 33; and a spring member 39 for applying a tension to the passage member 33. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
