Piano key leveling

A piano includes a balance rail defining a balance surface (15), and a piano key assembly (160) including an elongated body defining a playing surface (22). The piano key assembly (160) is supported by the balance surface (15) for pivoting movement in response to application of playing pressure appl...

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Bibliographic Details
Main Author YOUSE, WILLIAM S
Format Patent
LanguageEnglish
French
German
Published 26.03.1997
Edition6
Subjects
ACOUSTICS
MUSICAL INSTRUMENTS
PHYSICS
PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICALINSTRUMENTS WITH ONE OR MORE KEYBOARD
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Summary:A piano includes a balance rail defining a balance surface (15), and a piano key assembly (160) including an elongated body defining a playing surface (22). The piano key assembly (160) is supported by the balance surface (15) for pivoting movement in response to application of playing pressure applied to the playing surface (22). The balance surface (15) is disposed in a first plane (26) and the playing surface is disposed in a second plane (28) vertically spaced from the first plane (26). A leveling arm (31) has a first end (32) attached to the elongated body (18) and a cantilevered, second, free end (34), and defines a leveling surface (36) in opposition to the balance surface (15). A leveling adjustment element (38) includes a segment extending between the elongated body (18) and the free end (34) of the leveling arm (31). The segment has a length adjustable for changing the vertical distance between the first plane (26) of the balance surface and the second plane (28) of the playing surface.
Bibliography:Application Number: EP19960401974