| 摘要 |
PURPOSE:To rearrange keys so that an operator use them easily and to improve operativity by providing many switches on a keyboard base and providing plural keys whose positions are changed freely on the keyboard substrate. CONSTITUTION:The keyboard base 1 is provided with numbers of X-Y contact type switches (Xm, Yn). Respective intersections in a figure are switches, which are pressed by lower ends 2a of keys 2 to make X-Y contacts (Xm, Yn). A cover 3 for holding the keys 2 is arranged on the keyboard base 1. This cover 3 has plural grooves 4 which hold the keys 2 slidably corresponding to hollow parts 2b of the keys 2. Then, each key 2 itself has a replaceable key top 2c. Therefore, the arrangement of the keys 2 is altered on the keyboard 1 by sliding a key 2 in a groove 2 or replacing a key top 2c. |
