| 摘要 |
PROBLEMS: To provide a shape-retention-type hoisting rectangular parallelepiped bag which can be used as a sand bag in which soil can be packed down, and can be easily piled up while maintaining its shape. SOLVING MEANS: Base bands 24 are provided along diagonal lines of a rectangular parallelepiped bag 11 in a rectangular parallelepiped shape filled in with soil. A quadrangular-prism-shaped lift band 30 is secured to a point of intersection of the base bands 24. One end of a truss band is secured by a fixing band 31 surrounding the quadrangular-prism-shaped lift band 30, and the other end thereof is secured to the base band at a point spaced apart by a given distance from the center of the lift band. In this way, a plurality of truss bands can be disposed on the lift band 30 in the vertical direction, thereby resolving a weight applied to a single truss band and maintaining the shape of the shape-retention-type hoisting rectangular parallelepiped bag 1. Accordingly, a plurality of the shape-retention-type hoisting rectangular parallelepiped bags can be stacked in order, thereby achieving a significant reduction of working hours.
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