| 摘要 |
PURPOSE: A block for infant learning is provided to maintain a magnetic attachment state by assembling connection parts in each direction of a cube after installing a single permanent magnet in the center of a block body. CONSTITUTION: A block body(10) is a non-magnetic material. A permanent magnet(20) is buried inside the block body. The block body includes an upper body and a lower body which are symmetrical to each other. A fitting groove(13,14) is crossed in either the upper body or the lower body. The upper body(11) and the lower body(12) put together the permanent magnet that has a diameter which is the diagonal length of the fitting groove. |
