Editing Click leaf (section)

==Description==
The oldest keyboard known to use a clicky leaf is the Fujitsu N860-8282, produced in 1979. It is subsequently used in [[Alps SKCL/SKCM series]] switches and switches derived from that design. The switch utilizes a folded sheet of metal, placed down one side of the switch. One half rests vertically against the inside of the switch, and the other half protrudes diagonally forward under the [[slider]]. Small downward hooks snag the slider as it is depressed, impeding its progress; when the slider is pressed far enough, the slider clears the hooks and drops rapidly.

This rapid drop provides the tactility in all click and tactile leaves. In click leaves, the whole spring is pulled forward, and snaps back once the slider clears the hooks. The impact of the spring returning to its vertical position against the inside of the switch provides the click. A small raised area along the rear half of the spring provides a controlled impact point for the click.

Tactile leaves, typically only found in Alps SKCL/SKCM and [[Alps SKBL/SKBM series|SKBL/SKBM]] series switches, have two additional side folds at the top, that stop the spring from being pulled forward. This modification allows the spring to provide a similar tactile feel, without noise.