Long traveling button switch with enhanced user feedback

Details Long traveling button switch with enhanced user feedback Long traveling button switch with enhanced user feedback

1991-04-01

1993-07-20

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Membrane type

200511, 200512, 200515, H01H 110, H01H 102

Patent

active

052285618

ABSTRACT:
A pushbutton switch including a keycap having a keycap top and a keycap plunger, a retaining bezel for guiding the keycap plunger and limiting the displacement thereof, a deformable elastomeric switch button supporting a contact pad, and a printed circuit contact pattern engageable by the contact pad when the switch button is deformed by the downward displacement of the keycap plunger. The deformation of the button switch provides tactile feedback, while impact of the keycap top against the retaining bezel provides audible feedback. The pushbutton switch is configured to limit the downward displacement of the keycap plunger to avoid excessive force on the printed circuit board.

REFERENCES:
patent: 3668356 (1972-06-01), Kekas
patent: 4496803 (1985-01-01), Smith
patent: 4527030 (1985-07-01), Oelsch
patent: 4528431 (1985-07-01), Coleman, III
patent: 4529848 (1985-07-01), Cherry
patent: 4605828 (1986-08-01), Gostomski, Jr. et al.
patent: 4659881 (1987-04-01), Dowe
patent: 5057657 (1991-10-01), Skulic
patent: 5066842 (1991-11-01), Yamagata

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