| 摘要 |
PROBLEM TO BE SOLVED: To provide a key switch device capable of providing large stroke by increasing the length of a link member, allowing miniaturization of a keyboard by reducing the operation area of the keyboard without increasing the disposing interval of key tops more than necessary and capable of properly keeping the operability of long key tops by allowing operations of each link member and an attitude keeping lever to be smoothly carried out at the same time. SOLUTION: The axial direction of a shaft part 31a in the attitude keeping lever 31 is disposed in the same direction as the sliding direction of the respective links 4 and 5 in depressing the key top 2', and is so disposed as to cross the rotation axis comprising axial centers of pin parts 12a and 12b of the link 4 locked to a rotation lock part 27.
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