Self-tensioning trussrod system

Details Self-tensioning trussrod system Self-tensioning trussrod system

1989-06-29

1990-06-05

Franklin, Lawrence R.

Music

Instruments

Stringed

84313, G10D 312

Patent

active

049303899

ABSTRACT:
A stringed musical instrument of the type having a trussrod acting under tension for reinforcing the neck against warping is provided with a system for automatically increasing the tension on the trussrod in proportion to the tension on the strings, thus maintaining both neck straightness and optimal string height with respect to the fretboard and any pickups the instrument may have. The instrument's tailpiece pivots so as to redirect the string tension into tension applied to the trussrod. The tailpiece may be provided with fine tuners or with a tremolo bar. Even on operation of the tremolo bar, there is no tendency for the neck to warp, because the changes in string tension caused by the tremolo bar are automatically and immediately counteracted by the trussrod.

REFERENCES:
patent: 1912106 (1933-05-01), Turturro
patent: 2335249 (1943-11-01), Gugino
patent: 3143028 (1964-08-01), Fender
patent: 3437001 (1969-04-01), Kraft
patent: 3535975 (1970-10-01), Broussard

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