KEYBOARD FALLBOARD OPENING/CLOSING MECHANISM FOR KEYED INSTRUMENT AND THE KEYED INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To provide a keyboard fallboard opening/closing mechanism for a keyed instrument, which has a simple structure and doesn't require a large space for installation. ;SOLUTION: Only a rotation support part which is arranged in a place which the lower surface of a moving keyboard fallboard 14 passes, and comprises angular shape forming parts 42 and 42, a connection groove wall faces 38c and 38c, etc., and a keyboard fallboard stop part which comprises connection groove wall faces 36c and 36c, etc., are required to fold and store the keyboard fallboard 14 in a keyed instrument 1. Consequently, a constitution to open and close the keyboard fallboard 14 is simplified, and a large space for installation is unnecessary because they have no mobile parts.;COPYRIGHT: (C)2004,JPO