Action

Details Action Action

2006-06-06

2006-06-06

Lockett, Kimberly (Department: 2837)

Music

Instruments

Stringed

Reexamination Certificate

active

07057101

ABSTRACT:
An action in an acoustic piano is provided which can reproduce the touch and feel of the key depression generated in a normal performance mode even in a silent performance mode. The acoustic piano is capable of being switched between the normal performance mode and the silent performance mode. In the silent performance mode, a rotation lever of a transmission switching mechanism disconnects the hammer operating portion from the key. A load switching mechanism is rotated to lower the tip of a weight lever to abut directly upon the upper face of the key. Then, the weight lever swings up and down corresponding to the key depression of a player, closely reproducing the touch and feel of a conventional acoustic piano.

REFERENCES:
patent: 4685371 (1987-08-01), Levinson
patent: 4854211 (1989-08-01), Tanaka et al.
patent: 5986202 (1999-11-01), Seiler
patent: 10-20858 (1989-01-01), None

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