Title: Location hole technique for machining piano
Application Number: 200410024879 Application Date: 2004.05.31
Publication Number: 1705015 Publication Date: 2005.12.07
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G10C9/00
Applicant(s) Name: Chen Hailun Address: 315800
Inventor(s) Name:
Attorney & Agent: wei weimin
Abstract:
     This invention relates to a positioning hole technology for processing the piano including: 1, processing positioning holes on a sound board matched with long code, short code and a back frame, adhering the long code and short code on the sound board taking the positioning holes as the primary standard, 2, processing positioning holes on the back frame and matched with the sound board and an iron board and adhering the sound board on the back frame with the positioning hole as the primary standard, 3, processing positioning holes on the iron board matched to the back frame and adhering the iron board on the back frame with the positioning holes as the standard to solve the problem of tone color.
Time: 9