Method and apparatus for adjusting keys of a musical keyboard in

Details Method and apparatus for adjusting keys of a musical keyboard in Method and apparatus for adjusting keys of a musical keyboard in

1999-05-28

2000-05-09

Nappi, Robert E.

Music

Instruments

General features

84423R, 84439, G10C 312

Patent

active

060606533

ABSTRACT:
A musical keyboard instrument (EM1) keyboard which has a plurality of keys, a common pivot point for said keys and a spring biases each key to a uniform position, each key having an associated weight member and a common fulcrum point for each associated weight member, and each key having a dependent weight actuator member engaging its associated weight member, respectively, such that when a key is depressed by a musician the "feel" to the musician is that of a given type of keyboard instrument. A device for disabling the effect of at least some of said associated weight members changes the "feel" to the musician of the keyboard. The device for disabling includes a bar member pivotally mounted to the instrument frame and beneath the associated weight members and a device for rotating the bar member in a direction to rotate the associated weight members about the common fulcrum point and disengage the weight actuator members from engagement with the associated weight member.

REFERENCES:
patent: 4993305 (1991-02-01), Franz et al.

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