Alps spring over membrane

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Alps spring over membrane
Manufacturer Alps Electric
Sense method Membrane
Keycap mount Alps mount
Switch mount Plate mount

Alps spring over membrane is a provisional name for an Alps membrane switch using discrete plate-mounted switches with Alps mount sliders. Each switch module contains two helical springs: a return spring for the slider, and a downward-facing contact spring that applies pressure to the membrane. The latter is likely to permit mid-travel actuation.

The switch is probably linear or progressive rate, and non-clicky.

It appears that Alps moulded spring over membrane was the reduced cost successor.

Keyboards

  • Some C.ITOH keyboards[1]

References

  1. MouseFan — C.ITOH 2種 Retrieved 2015-07-22.