PROBLEM TO BE SOLVED: To provide a wooden flush structure design device and the like, determining exactly an internal structure of a wooden flush structure only by inputting an appearance design, and satisfying requests as to strength, a light weight and a cost.;SOLUTION: This wooden flush structure design device is a design device for core structure of the wooden flush structure, and is provided with an input means for receiving inputs for a plurality of components of wooden flush structure appearance, an arrangement means for arranging the longest length of core material in a core material arranging position predetermined in every input components, and an erasing part for erasing a core material portion positioned in an intersection of the arranged core materials, according to the necessity predetermined by a positional relation with respect to the each component.;COPYRIGHT: (C)2008,JPO&INPIT
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