Title: Repetition lever of grand piano
Application Number: 200480029984 Application Date: 2004.10.13
Publication Number: 1867964 Publication Date: 2006.11.22
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G10C3/16
Applicant(s) Name: Kawai Musical Instr Mfg Co. Address:
Inventor(s) Name: Yoshisue Kenji, Higasa Hirotaka
Attorney & Agent: hu qiang
Abstract:
     A repetition lever of grand piano that excels in shape retention and dimensional stability, being lightweight and has high rigidity, so that desired movement can be stably obtained to thereby enhance successive key pressing performance. There is provided repetition lever (4) of grand piano adapted to carry out the motion of thrusting up hammer (30) after string hitting, which repetition lever is comprised of a molding of thermoplastic resin containing reinforcement filaments produced according to a filament process. The repetition lever (4) has reduced section portions (49,50,54) for weight reduction. Further, the reinforcement filaments are each comprised of a carbon fiber, and the thermoplastic resin is comprised of an ABS resin.
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