| 摘要 |
PROBLEM TO BE SOLVED: To provide pattern display boards for a leaf-type electric generator making a pattern clearly visible over a long period by preventing the pattern sections of adjacent pattern display boards from being rubbed with each other when a rotary drum is rotated. SOLUTION: Multiple pattern display boards 13 are rotatably supported on the outer periphery of a cylindrical rotary drum 12 rotated by a driving means 11, and a pattern is displayed by a pair of upper and lower pattern display boards located at the display position by stopping the rotary drum 12 at an optional position in the pattern display boards 13 for a leaf-type electric generator. A rub prevention section 13e is formed on each pattern display board 13, it is brought into contact with the pattern section of the adjacent pattern display board 13 when the rotary drum 12 is rotated, and the pattern is prevented from being abraded in the pattern display boards 13 for the leaf-type electric generator. |
