Patent ID: 6909062

Claim:
A key-switch device comprising: a key-top having retainers formed on a back surface of the key-top; first and second levers disposed under the key-top, each lever including a base-end part and a pair of arms opposing each other and extending from both ends of the base-end part, the first and second levers being connected together rotatably about a substantial center of the pair of arms as an intersecting point; a lever-holding plate to retain each lower end of the first and second levers; and an actuator member attached to and spanned between both the base-end parts of the first and second levers; wherein the actuator member has a slide-retainer-receiving groove with an open upper part and a journal-retainer-receiving slot with an open lower part, the journal-retainer-receiving slot having a circular slot and an opposing retaining protection, and wherein the base-end part of the second lever is slidably retained in the slide-retainer-receiving groove.