Music – Instruments – Stringed
Patent
1999-02-09
2000-07-04
Nappi, Robert E.
Music
Instruments
Stringed
84267, G10D 300
Patent
active
060841664
ABSTRACT:
A tremolo device for adjusting the tension in a stringed musical instrument including a body having an upper surface, a neck portion, a tuning head having a plurality of tuning devices, a plurality of strings each anchored at a first end to a respective one of said plurality of tuning devices and extending over at least a portion of said neck portion and said body. The tremolo device includes a bridge plate having a leading and trailing edge, the leading edge being tapered so as to form a knife edge. The tremolo device further includes a elongated receiving bar mounted to the body of the guitar, the receiving bar including a groove along its length adapted to receive the knife edge and forming a pivot axis at the interface of the knife edge and groove to permit the rotation of the bridge plate about the pivot axis in a first direction. A manually operable actuating arm is attached to the bridge plate so as to permit the selective rotation of the bridge plate about the pivot axis so as to vary the tension and primary pitch of the strings. A biasing member is connected to the bridge plate for biasing the bridge plate about the pivot axis in a second direction opposite to the first direction. Thus, the bridge plate may be manually moved about the pivot axis but is biased to return to a primary position in the static state.
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Lockett Kim
Nappi Robert E.
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