| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a key top of an operating body to be lifted always with a stable posture in a pressing force type input device formed in a keyboard device or the like. <P>SOLUTION: A membrane sheet 3 having switch mechanism is superimposed on a substrate 2 and a guide member 5 is supported thereon movably in the Y direction, and an operating body 6 is liftably supported. A plurality of protrusions 68 projecting obliquely are formed in the operating body 6, in which each of the protrusion 68 is inserted into each of recesses 58 formed in the guide member 5. If a deviated pressing force F1 is applied, a sliding force (b) is applied to the guide member 5 in the Y2 direction by a lowering force (a). And a lowering guide force (c) is applied to protrusions 68 positioned on the Y2 side. Therefore the operating body 6 can be lowered stably in a horizontal posture. <P>COPYRIGHT: (C)2012,JPO&INPIT |
