Touch force adjustment means for piano keys

摘要

Means for adjusting the touch force required to depress the keys of a piano within the range normally preferred by pianists, comprising of an adjustable weight member located in a slot bored through the side of the piano key. The slot is in a shape that allows the weight to move in a direction parallel to the length of the piano key. Precise adjustment of the touch force necessary to depress a piano key is achieved by moving the weight member within the slot, thereby increasing or decreasing its distance from the key fulcrum.

主权项

1. A piano comprising:
a key lever on a fulcrum; and, wherein the key lever features a movable weight for adjusting the key's center of gravity relative to the fulcrum, whereby a player's preference for key pressure resistance may be accomplished.