| 摘要 |
A key structure of a keyboard, comprising: a backplane and a plurality of key caps. The backplane is concaved a plurality of grooves. A frame is deposed on the groove, and outside of the frame two fixed bases and two positioning columns are correspondingly deposed on the opposite sides. A clamp is deposed on the fixed base. A link bar, consists of a cross bar and two struts. The cross bar and the struts are mutually perpendicular and shown as an upside-down U shape. A key cap, in which a convex column is extended from the inside of the key cap, and two clips are protruded respectively on the opposite sides of the convex column, as well as a slot is deposed on the clip. The clips are adapted to position the cross bar of the link bar to a clamp of a fixed base on the backplane. And two struts are adapted to be held by the positioning column, so that the two struts only can be moved up and down and will not mismatch. Moreover, combining the key cap with the backplane to make the convex column plugging into the frame, therefore the two slots of the clip are adapted to be combined with the two struts. No matter what position of the key cap surface is pressed, the key cap will be affected by the link bar; such will make the key being pressed down completely. |
