Patent Number: 
Section: claims

1. A recycled fuel assembly storage basket comprising:a plurality of rectangular first plate members being stacked with long side ends thereof abutting to each other;a plurality of connecting members extended in a direction towards which the first plate members are stacked, attached to a side surface of each of the first plate members being stacked, connecting the first plate members, and projecting from the side surface;a plurality of rectangular second plate members both of whose long side ends have recesses into which the connecting members are fitted; anda recycled fuel assembly stored in a space surrounded by the first plate members and the second plate members. 2. The recycled fuel assembly storage basket according to claim 1, wherein each of the first plate members and the second plate members has a through hole penetrating in a longitudinal direction. 3. The recycled fuel assembly storage basket according to claim 1, wherein a cross-section of each of the connecting members perpendicular to the longitudinal direction is a trapezoid, and an upper base of the cross-section comes into contact with the side surface of each of the first plate members. 4. The recycled fuel assembly storage basket according to claim 3, wherein a cross-section of each of the recesses in the second plate members perpendicular to the longitudinal direction is a trapezoid, and an upper base side of the cross-section comes into contact with the side surface of each of the first plate members. 5. The recycled fuel assembly storage basket according to claim 1, wherein the second plate members and the connecting members are made of different materials. 6. The recycled fuel assembly storage basket according to claim 1, wherein the connecting members are divided at different positions in the direction towards which the first plate members are stacked. 7. The recycled fuel assembly storage basket according to claim 1, wherein the connecting members are attached to the first plate members by a fastening member. 8. The recycled fuel assembly storage basket according to claim 7, wherein a through hole is provided at a side of each of the connecting members, and the fastening member penetrates through the through hole. 9. The recycled fuel assembly storage basket according to claim 7, further comprising a load supporting unit that supports a load of the second plate members between the fastening member and the connecting member, and between the fastening member and the first plate members. 10. The recycled fuel assembly storage basket according to claim 9, further comprising a rotation suppressing member that suppresses rotation of the load supporting unit at least one of between the load supporting unit and the first plate members, and between the load supporting unit and the second plate members. 11. The recycled fuel assembly storage basket according to claim 7, further comprising a reinforcement member made of a material having higher stiffness than that of the first plate members inside the through hole of the first plate members, the reinforcement member being connected with the fastening member. 12. The recycled fuel assembly storage basket according to claim 1, whereina groove extending in the direction towards which the first plate members are stacked is formed on the side surface of each of the first plate members, andthe connecting member is fitted into the groove. 13. A recycled fuel assembly storage container comprising:a trunk having an opening portion and a cavity;a lid attached to the opening portion and sealing the cavity; andthe recycled fuel assembly storage basket of claim 1 which is disposed in the cavity. 14. A method for manufacturing a recycled fuel assembly storage basket comprising:stacking a plurality of rectangular first plate members with long side ends thereof abutting to each other;forming a plurality of plate member joint bodies by connecting the first plate members with connecting members attached to a side surface of each of the first plate members and projecting from the side surface;disposing side surfaces of the plate member joint bodies so as to face each other, and placing the connecting members opposite from each other; andinserting the connecting members placed opposite from each other into recesses formed at both of long side ends of a rectangular second plate member.