Title: Combined keyboard instrument, silent system and regulating knob mechanism for changing release time
Application Number: 02119295 Application Date: 2002.03.01
Publication Number: 1380639 Publication Date: 2002.11.20
Approval Pub. Date: 2006.05.17 Granted Pub. Date: 2006.05.17
International Classifi-cation: G10C3/16;G10C3/12
Applicant(s) Name: Yamaha Corp. Address:
Inventor(s) Name: Iue Satoshi;Kawamura Kiyoshi
Attorney & Agent: li xiaoshu
Abstract:
    A silent piano is a composite keyboard musical instrument fabricated on the basis of an acoustic piano, and a pianist plays a tune by piano tones or electronic tones; when the pianist selects the electronic tones, a hammer stopper enters the trajectories of hammers, and a tandem regulating button mechanism changes damping columns onto the trajectories of jacks in such a manner that the jack is brought into contact with the damping column concurrently with a regulating button; since the damping columns are closer to the jack than the regulating buttons, the jack turns at a larger angular velocity so that the hammer is not pinched between the jack and the hammer stopper; the damping columns are moved onto a virtual plane where the regulating buttons are so that the jacks are commonly used between the silent piano and the standard acoustic piano.
Time: 6