Neck adjustment mechanism for stringed instruments

摘要

A stringed instrument having a body portion and a neck extending from the body portion wherein the neck includes mounting end attachable to the body portion, a distal end and an intermediate section including means for attachment of a fingerboard. An enclosed channel extends from the mounting end of the neck along a central axis to an opening at the distal end, providing a housing for a rigid bar disposed within the channel. This bar includes (i) an adjustment end positioned near the instrument body, (ii) a distal end extending toward the distal end of the neck, and (iii) a transverse pivot support coupled at an intermediate section of the bar and journaled within the neck. The height and width dimensions provide a close fit of the bar within the channel at a distal end thereof such that displacement of the distal end of the bar along a vertical or rotational axis results in corresponding displacement of the distal end of the neck in a bi-directional, controlled member. An adjustment mechanism interlocks with the adjustment end of the bar to provide full control in both upward and downward directions. Rotational adjustment is enabled by additional mechanisms which impose an angular force to the bar.