| 摘要 |
<p>PURPOSE:To enable two keyboards to be overlapped and used through foots, by providing foldable type foots on rear planes. CONSTITUTION:A foot 3 is constituted of a sheet of plate, and the upper end of a foot 2 is mounted on the end part of the rear plane of a keyboard 1 with a hinge 3. The foot 2 can be folded so as to be put along the rear plane of the keyboard 1 by the hinge 3, and also, can be opened at the right angle of the rear plane of the keyboard 1. Normally, it is used in a state where the foot is folded. When it is used with another set of keyboard, the foot is opened, and the another set of keyboard is arranged between the foots, and the two keyboards are used in the state where they are overlapped through the foots.</p> |
