Action for piano
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United States of America Patent
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Oct 9, 2007
Grant Date -
Sep 14, 2006
app pub date -
Mar 10, 2006
filing date -
Mar 11, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
An action for a piano is provided for clarifying a timing of let-off, improving the sequential touching capabilities, and consequently realizing high playing performance excellent in expressive power in a simple structure without adversely affecting the key touch feeling. The action for a piano swings a hammer in response to a touch on a key, and comprises a wippen pushed up by the key to pivotally move, a regulating button having a flat jack contact surface on the lower end, and a jack having a flat regulating button contact surface which comes into contact with the jack contact surface as the key is depressed. The jack comprises a molding made of a thermoplastic resin containing long fibers for reinforcement.
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