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US 6,660,917 B2Granted
Keyboard musical instrument having fall board formed with clearance for fingers
AssigneeYamaha Corporation
InventorsMotoomi Goto, Kiyoshi Kawamura
Life of this patent
Estimating the term…
Abstract
A grand piano has a keyboard placed on a key bed, and the keyboard is covered with a fall board after completion of practice on the keyboard, wherein a recess is formed in the fall board in such a manner as to offer a clearance to fingers on the black keys so that, even if the pianist straightens his or her fingers on the land portion before moving them to other keys, the nails are never hit against the inner surface of the fall board.
Claims19
A keyboard musical instrument comprising:
- a case having a side wall and a bottom plate fixed to said side plate in such a manner as to be located between both side portions of said side wall;
- a mechanism accommodated in said case;
- a keyboard placed on said bottom plate so as to be exposed to a space between said side portions, and selectively moved for actuating said mechanism;
- and
- a fall board rotatably connected to said case so that a user changes said fall board between an open position for standing over said keyboard and a closed position for covering said keyboard therewith, and formed with a recess extending along said keyboard so as to offer a clearance to fingers on said keyboard at said open position.
2 more elements
A grand piano comprising:
- a piano case defining an inner space, and including a side board, a key bed fixed to said side board and located between arm portions of said side board and an upper beam extending over a rear surface of said key bed and fixed to said side board;
- a mechanism accommodated in said inner space;
- a keyboard placed on a front surface of said key bed between said arm portions, and including black keys and white keys laid on a certain pattern and linked with said mechanism for selectively generating piano tones;
- and
- a fall board rotatably connected at both ends thereof to said arm portions so as to be changed between an open position for standing against said upper beam and a closed position for covering said keyboard, and formed with a recess extending along said keyboard and offering a clearance to fingers on said black keys.
2 more elements
Dependencies are inferred from the claim text.