FUEL CONVEYING DEVICE

To reduce a reaction received by telescopic structures during conveyance of fuel to reduce shaking itself that occurs.SOLUTION: A fuel conveying device comprises: a traveling carriage; a traverse carriage that moves along rails provided in a direction orthogonal to the direction of travel of the traveling carriage; a telescopic structure body that is installed on the traverse carriage and has a plurality of telescopic structures configured in a nested state; and a gripping tool that is attached to a lower end of the telescopic structure body and grips and conveys a nuclear apparatus. The telescopic structure is formed of at least two columnar members extending in the vertical direction and a connection member connecting the at least two columnar members, and has an opening across the central axis of the telescopic structure. During expansion and contraction of the plurality of telescopic structures, an opening of a telescopic structure located inside a telescopic structure to be a reference communicates with at least part of an opening of a telescopic structure located outside the telescopic structure to be a reference, and one columnar member is located between the columnar members of adjacent telescopic structures.SELECTED DRAWING: Figure 5(b) 【課題】燃料の搬送時に伸縮構造物の受ける抗力を低減し、発生する揺れそのものを低減すること。【解決手段】走行台車と、走行台車の走行方向と直交する方向に設置されたレールに沿って移動する横行台車と、横行台車に設置され、複数の伸縮構造物が入れ子状に構成されている伸縮構造物本体と、伸縮構造物本体の下端に取り付けられ、原子力機器を掴み搬送する掴み具とを備え、伸縮構造物は、鉛直方向に延びる少なくとも２本の柱状部材及び少なくとも２本の柱状部材を結ぶ接続部材とで構成されると共に、伸縮構造物の中心軸を挟んで開口部を持ち、複数の伸縮構造物の伸縮時には、基準とする伸縮構造物に対して内側に位置する伸縮構造物の開口部は、基準とする伸縮構造物に対して外側に位置する伸縮構造物の開口部の少なくとも一部と連通し、かつ、１つの柱状部材は、隣接する伸縮構造物の柱状部材の間に位置していることを特徴とする。【選択図】図５（ｂ）