| 摘要 |
Such a toy is comprised of a certain number of discs (2) arranged on and rotating about an axis (3). Each disc (2) has holes (6) arranged on at least one circle (5, 13), and in at least two of those holes of any disc (2), a pin may be driven in. In order to make the location of holes difficult, there are provided other holes (6) which are traversing as the others or which have a shape preventing the passage of the pin. According to the number of discs (2), holes and pins (7), it is very difficult to obtain the passage of pins (7) in the corresponding holes of the discs. |
