| 摘要 |
PROBLEM TO BE SOLVED: To simplify and automate machining of a member and connection of nodal points for realizing a low small space truss structure so as to improve efficiency and economy in industrial production of a light-weight, high-strength space truss composite plate. SOLUTION: A flat face-shaped member such as a net, a grid, a sheet, or a plate is bent along reference lines set parallelly to each other at a fixed interval. This bending is carried out so that a three-dimensional shape projected to a vertical face crossing the reference line orthogonally has triangles and inverted-triangles continued alternately while using their slant sides in common. Adjacent bent parts may be connected together.
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