Title: Adjuster for relative position between actuators and objects, automatic player equipped therewith and musical instrument having the same
Application Number: 200610067883 Application Date: 2006.03.13
Publication Number: 1838227 Publication Date: 2006.09.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G10F1/02
Applicant(s) Name: Yamaha Corp. Address:
Inventor(s) Name:
Attorney & Agent: di wankui huang xiaolin
Abstract:
     An automatic player piano is a combination between a piano and an electric system, and key actuators, which are provided under the black and white keys of the piano, is responsive to a driving signal so as selectively give rise to motion of the black and white keys without any fingering of a human player; an adjuster is provided in association with the key actuators so as to aid an adjusting work on the key actuators, and includes key sensors and a controller; when a worker requests the controller to assist him in the adjusting work, the controller checks the key position signals to see whether or not the key actuators are found at proper relative positions to the black and white keys, and informs the worker of the deviation from the proper relative position so that the worker easily adjusts the key actuators at the proper relative positions.
Time: 8