| 摘要 |
A computer key includes first and second linking frames interconnecting pivotally a base plate and a push button. The first and second linking frames are connected pivotally at first and second linking arms thereof. Each of the second linking arms has a pin member extending outwardly and transversely therefrom, and a second transverse axle connected thereto. Each of the first linking arms has a first transverse axle connected thereto, and an elongated slot extending in a longitudinal direction thereof. Each of the first linking arms further has a protrusion projecting from an internal wall of the elongated slot to form left and right sections longitudinally of the elongated slot. The protrusions prevent the pin members from moving back to the left sections from the right sections when the pin members are inserted initially into the left sections and are forced to pass into the right sections through a restricted section between the left and right sections to enable the first and second transverse axles to be inserted and retained slidably in right and left guideways formed on the base plate, respectively.
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