Reinforced sound board used in musical instrument

Details Reinforced sound board used in musical instrument Reinforced sound board used in musical instrument

1990-07-24

1991-12-17

Hix,, L.

Music

Instruments

Stringed

B10C 306

Patent

active

050726420

ABSTRACT:
A sound board incorporated in a musical instrument such as, for example, a piano or a string instrument comprises a wooden plate member containing wood fibers substantially oriented to a first direction, and a plurality of thread members fixed to at least one major surface of the wooden plate member at spacings and extending in directions substantially parallel to the first direction, in which the wooden plate member has a first modulus of longitudinal elasticity to a force exerted thereto in a direction substantially parallel to the first direction and in which each of the thread members has a second modulus of longitudinal elasticity larger than the first modulus of longitudinal elasticity so that the sound board is reinforced against a force in the direction substantially parallel to the first direction only, thereby allowing the sound board to produce a soft deep sound.

REFERENCES:
patent: 4348933 (1982-09-01), Kaman et al.

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