Patent ID: 6881882

Claim:
A string stretching mechanism for a stringed instrument, comprising: a bridge base for stopping one end of each of a plurality of strings, which is arranged on an exterior surface of a body of the stringed instrument and can be pivotally moved in a string stretching direction in which the strings are arranged and stretched over a neck; and a plurality of bridge saddles for supporting one end of each of the strings respectively, which are arranged on the bridge base in a direction substantially perpendicular to the string stretching direction, wherein an upper surface of the bridge base is curved in a convex shape whose curvature substantially matches a curvature of a fingerboard on the neck of the stringed instrument so that the plurality of bridge saddles are mounted on the upper surface of the bridge base and arc interconnected with the bridge base by a plurality of octave adjustment screws in such a way that the plurality of bridge saddles can be each adjusted in position in the string stretching direction.