Title: Scroll wheel type piano toning apparatus
Application Number: 03116858 Application Date: 2003.05.12
Publication Number: 1479273 Publication Date: 2004.03.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G10C9/00
Applicant(s) Name: Shanghai Engineering Univ. Address: 200336
Inventor(s) Name:
Attorney & Agent: wu anquan
Abstract:
     The invention is piano tuning apparatus. There is a trough on the case. The tuning hand wheel is connected to spindle of drive bevel gear. The tuner joint is inside case. The worm wheel is fixed on stepped shaft fixed by nut. The worm engage to the worm wheel is fixed inside case. The upper end of worm is connected to the driven bevel gear. The spindle of drive bevel gear across the hole on the upper cover is connected to the hand wheel. Comparing with prior art, the invention provides features of easy of operation, saving effort, high precision, suitable for professional soundman or as a tool for individual to use.
Time: 6
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