| 摘要 |
PROBLEM TO BE SOLVED: To provide a duckboard type sleeping board which has suitable hardness, promotes ventilation of air and moisture, suitably diffuses body heat and sweat, and, further, is useful for preventing an offensive odor and a bedsore. SOLUTION: Mutually facing inside edges of the base side duckboard 1 and the drawn side duckboard 2 with same dimensions are foldably connected via a hinge 3. A support frame 5 to be folded via a hinge 4 in the back side of the base side duckboard 1 and to keep the base side duckboard 1 and the drawn side duckboard 2 in a chevron shape of a prescribed angle is equipped on the outer end of the base side duckboard 1. Between two through holes 5b, 5b equipped in the support receiver 5a on the upper end of the support frame 5 and two through-holes 3b, 3b equipped in the rotary hinge part 3a of the hinge 3, a loop shape drawing string 7 for the support frame 5 is inserted. The duckboard type sleeping board is easily double-folded to have excellent storage performance and can be stably erected in a chevron shape to be used as a drier for a mat, etc. |
