| 摘要 |
<p>PURPOSE:To make the thickness of a portable data processor thin, and to obtain a key stroke equivalent to a desk top type. CONSTITUTION:When a key top 32 is depressed, a supporting shaft 31 fixed to the key top 32 sinks into a second frame 28 against the force of a spring 33, and then the second frame 28 sinks into a first frame 25 against the force of a spring 29. Thus, the entire key stroke is the sum of the stroke of the supporting shaft 31 and the stroke of the second frame. Then, when a display part is closed, the key top is pressed by the display part, and a keyboard device can be housed while a key is kept in sinking state.</p> |
