Tracker touch apparatus utilizing magnetism for tactile feel

Details Tracker touch apparatus utilizing magnetism for tactile feel Tracker touch apparatus utilizing magnetism for tactile feel

1991-03-18

1992-07-14

Perkey, W. B.

Music

Instruments

General features

84440, G10C 312

Patent

active

051293013

ABSTRACT:
A tracker touch apparatus used with a keyboard apparatus having a plurality of selectively depressed keys includes at least one strip magnet support by the apparatus in a position transversing over the tops of the keys. A metal plate is secured to the top of each key of the keyboard in a position just below the strip magnet. Initial depression of a keyboard key is resisted by the magnetic attractive force of the strip magnet for the metal plate secured to the depressed key. The magnetic resistance to keyboard key depression imparts to the keys a desired "feel" of depression.

REFERENCES:
patent: 4217803 (1980-09-01), Dodds
patent: 4524669 (1985-06-01), Yamamoto et al.
patent: 4899631 (1990-02-01), Baker

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