Patent ID: 8729372

Claim:
An adjuster made so as to be mounted on a tailpiece on a surface side of a string instrument, the tailpiece having a front end portion and formed with a substantially circular anchor hole for a string, the adjuster comprising: a frame made so as to be removably fixed to the front end portion of the tailpiece, the front end portion being located at a front side from the anchor hole; a lever member having a substantially L-shape and a base portion, the base portion being swingably supported by the frame; a mounting portion for an adjusting screw, which is provided to the frame in a side of the front end portion of the tailpiece, the mounting portion being positioned outside a front end edge of the front end portion of the tailpiece; an anchoring portion extending from the base portion of the lever member and made so as to project through the anchor hole to the surface side of the tailpiece, the anchoring portion removably anchoring a back end of the string; a front plate portion extending from the base portion of the lever member to the front end portion of the tailpiece; the adjusting screw mounted by screwing it from the surface side of the instrument into the mounting portion of the frame; and a swing transmitting member provided to the frame so as to be interposed between the adjusting screw and the lever member, the swing transmitting member swinging the lever member to a tightening side or a loosening side in the direction for stretching the string according to the screwed amount of the adjusting screw; wherein the swing transmitting member is swingably supported by the frame and comprises one or more transmitting levers extending along the string; and wherein the adjusting screw is screwed into the mounting portion, whereby a front end portion of the transmitting lever is pushed down and a rear end portion of the transmitting lever pushes up a front end portion of the front plate portion, and the anchoring portion is swung to the tightening side in the direction for stretching the string.