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US 5,686,679 AGranted
Percussion instrument with tone bars for exactly generating tones on a scale
AssigneeYamaha Corporation
InventorsMinoru Nakano, Hiroaki Ohmuro
Life of this patent
Estimating the term…
Abstract
A plurality of metal bars of a vibraphone are regulated such that the first-order to third-order vibration approximate to the frequency ratio of 1:4:8 by using recesses formed in the central portion of the metal bar and the end portions on both sides of the central portion, and a player can make the metal bars generate tones exactly on a scale so as to harmonize with one another.
Claims17
A percussion instrument comprising:
- a plurality of sound bars respectively assigned notes of a scale, and generating vibrations when a player beats,
- the vibrations of each of said plurality of sound bars having at least a first-order vibration for mainly impressing the note assigned to said each of said plurality of sound bars, a second-order vibration and a third-order vibration,
- a frequency ratio of said first-order vibration, said second-order vibration and said third-order vibration being equal to 1:4:8;
- and
- a frame structure supporting said plurality of sound bars, and allowing said plurality of sound bars to freely vibrate.
2 more elements
Dependencies are inferred from the claim text.