Title: Regulating knob mechanism and soundless system and keyboard music instrument cooperated with same
Application Number: 01122884 Application Date: 2001.05.19
Publication Number: 1331466 Publication Date: 2002.01.16
Approval Pub. Date: 2005.08.10 Granted Pub. Date: 2005.08.10
International Classifi-cation: G10C3/16
Applicant(s) Name: Yamaha Corp Address:
Inventor(s) Name: Iue Toshi
Attorney & Agent: xiao li
Abstract:
    A silent piano includes a hammer stopper changed between a free position out of the trajectories of hammer shanks and a blocking position on the trajectories for blocking strings from being struck with the hammers; a tandem regulating button mechanism having standard regulating buttons and regulating bars used together with the hammer stopper changed in the blocking position for changing escaping speed of jacks; and an adjusting mechanism is provided between the regulating bars and a shaft for adjusting the regulating bars to appropriate angular positions, wherein the adjusting mechanism has regulating screws projecting from stationary brackets fixed to the shaft into a free space created in front of the array of action mechanisms so that a tuner easily adjusts the regulating bars to the appropriate angular positions without removing the action mechanisms from on the key bed.
Time: 5
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