Title: Back check for piano
Application Number: 200410063500 Application Date: 2004.07.12
Publication Number: 1577483 Publication Date: 2005.02.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G10C3/16
Applicant(s) Name: Kawai Musical Instr Mfg Co. Address:
Inventor(s) Name:
Attorney & Agent: cui yaobeng yang songling
Abstract:
     A back check for a piano is provided for locking a returning hammer in a pivotal movement without fail and for saving the manufacturing cost. The back check is used for locking the hammer in a pivotal movement for returning after it has struck a string to prevent the hammer from rebounding. A back check, disposed at a location at which the hammer is locked, extends in a vertical direction, and has an adhering surface which rises in a central portion thereof in the vertical direction. An under felt is adhered on the adhering surface of the back check body. A sheet-like cushion material, which is adhered to the back check body to cover the under felt, is formed with a locking surface in a predetermined curved shape conformal to the adhering surface for locking the hammer.
Time: 6
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