| 摘要 |
PROBLEM TO BE SOLVED: To reduce a burden of a worker, and to carry and install a shielding member in a short time.SOLUTION: A movable shield block 1 has a block body 2 which is equipped with a radiation shielding function for shielding a radiation, and can be vertically laminated in plurality; and one to a plurality of wheels 3 provided on the bottom surface of the block body, and moving the block body. The wheels are supported by a supporting mechanism 6 slidable in a vertical direction. The supporting mechanism is equipped with an urging member for pushing out to a lower side than the bottom surface of the movable shield block. A pressure value for pressing one wheel downward by one urging member is set to be larger than (a load of one movable shield block/the number of the wheels), and less than (the load of one movable shield block×1.5/the number of the wheels). |
