| 摘要 |
A method of manufacturing a compressed wood product includes cutting out a blank piece from raw wood, the blank piece having a shape in which a circularly closed marginal part makes a first plane, only one space of two spaces divided by the first plane has an undulation that includes a plurality of convex vertices, a vertex of which height from the first plane is higher is located at a position closer to a geometrical center of the circularly closed marginal part among arbitrary two vertices of the plurality of convex vertices when being viewed on a second plane that passes the two vertices and is perpendicular to the first plane, the blank piece having a volume obtained by adding an amount by which a volume of the blank piece is decreased by compression; softening the blank piece cut out; and compressing the softened blank piece in a water-vapor atmosphere having temperature and pressure higher than those of atmospheric air to deform the blank piece into a shape substantially like a bowl.
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