| 摘要 |
PROBLEM TO BE SOLVED: To realize a simple structure and a method of making with an easier machining work in a foldable pillow selectively usable at two levels, upper and lower, concerning the structure and production method of the foldable pillow made of wood. SOLUTION: Two opening-closing plates P1 and P2 are formed by cutting out one sheet of plate and intersections C1 and C2 and slits S1 and S2 adapted to make the intersections pierce them one through the other and vice versa are alternately formed at the central parts of the respective opening-closing plates P1 and P2 . V-shaped notch parts V1 are formed only above or below the intersection parts of the respective opening-closing plates P1 and P2 to get the end parts of the slits fitted thereinto one into the other.
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