| 摘要 |
A key switch device and a keyboard, capable of preventing key-entry noise from rebounding and having a drip-proof effect so as to avoid a contact fault and/or insulation failure. The key switch device includes a switch panel; a key top positioned above the switch panel; a pair of link members positioned between the key top and the switch panel and adapted to interlock with the key top so that the key top may be moved in a vertical direction while maintaining a horizontal posture; and an annular elastic wall member positioned between the switch panel and a membrane sheet and configured to contact opposing surfaces of the switch panel and the membrane sheet, wherein the elastic wall member is arranged along a contour of the key top.
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