| 摘要 |
PURPOSE:To facilitate the adjustment of dotecting positions of key touch infor mation and to reduce a cost by composing keyboard switches of rubber switches and mounting these keyboard switches at frames freely movably between specific positions. CONSTITUTION:The keyboard switches 6 are integrally composed of a base plate 19 of a U shape in section extending in the row direction of a keyboard 3, a printed circuit board 20 fixed onto this base plate 19 and the rubber switch bodies 21 disposed in juxtaposition on this printed circuit board 20 so as to face the rear surfaces of the respective keyboards 3. The keyboard switches 6 are composed freely slidably between a detecting position where the switches are pressable by the touched keyboards 3 and a non-detecting position where the pressing by the touched keyboards 3 is infeasible in the state that the side wall of the base plate 19 is held in sliding contact with the side wall of the case 25 of nearly a U shape in section fixed to the front side in the frames 10. The plural keyboard switches 6 are disposed in juxtaposition on the base plate 19 and this base plate 19 is freely slidably mounted at the frams 2, by which the movement of the plural keyboard switches 6 is made easier. |
