Importance

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Abstract

An exemplary apparatus is for moving a tunnel part of a boarding bridge equipped with a tunnel (100) that consists of a first tunnel part (110), a second tunnel part (120), and a third tunnel part (130) in sequence from one side and can be moved so that the second tunnel part (120) and third tunnel part (130) are placed in contact and are connected to each other based on the first tunnel part (110). The apparatus includes a first rope (210) with one end coupled with the first tunnel part (110) and its other end coupled with the third tunnel part (130). A first pulley (220) that fixedly coupled to the second tunnel part (120) by hooking the first rope (210) at a position that is separated toward the other end side rather than both ends of the first rope (210) and is interlocked and moved in accordance with the moving displacement of the other end of the first rope (210). A second rope (230) is installed separately from the first rope (210) with one end coupled with the first tunnel part (110) and its other end coupled with the third tunnel part (130). A second pulley (240) is fixedly coupled to the second tunnel part (120) by hooking the second rope (230) at a position that is separated toward one end side rather than both ends of the second rope (230) and is interlocked and moved in accordance with the moving displacement of the other end of the second rope (230).

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First Claim