Sliding actuator membrane switch for organ keyboard

Details Sliding actuator membrane switch for organ keyboard Sliding actuator membrane switch for organ keyboard

1980-10-27

1982-12-28

Wintercorn, Richard A.

Music

Instruments

General features

84440, 84DIG7, G10C 312

Patent

active

043655360

ABSTRACT:
An organ key assembly having a loosely mounted switch actuator providing self-aligning movement of the actuator relative to the switch. The switch, in the illustrated embodiment, is a membrane switch. The actuator is arranged to slide across the switch in effecting the operation thereof. The actuator is associated with the key in such a manner as to permit the key to be moved from an undepressed, normal position to the fully depressed position, with a substantially constant force. The actuator defines a novel configuration for providing the self-aligning function and switch wiping operation. In the illustrated embodiment, the switch is provided as a portion of a printed circuit board. A support structure is provided for preventing deformation of the printed circuit board by the actuator biasing forces.

REFERENCES:
patent: 1840712 (1932-01-01), Grant
patent: 3342967 (1967-09-01), Brand et al.
patent: 3657460 (1972-04-01), Cutler
patent: 3769869 (1973-11-01), Nelson, Jr.
patent: 3909564 (1975-09-01), Scheingold et al.
patent: 4186638 (1980-02-01), Fijima

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