Patent ID: 6957795

Claim:
A fast-acting clamp for a musical instrument comprising a bracket being U-shaped, and having a proximal side having an outside surface and an inside surface; a distal side; and a through hole formed through the proximal side; a connector having a through hole, said connector attached to the bracket; a threaded rod extending through the through hole in the bracket and having a distal end; a proximal end extending through the through holes in the bracket and the connector; an outer surface; a knob formed on the distal end; and a thread formed around the outer surface; and a positioning assembly mounted on the inside surface of the proximal side of the bracket and having a base attached to the inside surface of the proximal side of the bracket; a primary retainer attached pivotally to the inside surface of the proximal side of the bracket and having a top; a bottom; a proximal end; a distal end; a tab formed on the distal end; a semicircular notch formed in the proximal end and selectively engaging the thread on the threaded rod; and two edges formed on the proximal end on opposite sides of the semicircular notch; a secondary retainer mounted pivotally on the base and having a top; a bottom; a proximal end; a distal end; a semicircular notch formed in the proximal end, corresponding to the semicircular notch in the primary retainer and selectively engaging the thread on the threaded rod; and two edges formed on the proximal end on opposite sides of the semicircular notch and overlapping the edges of the primary retainer; and two springs connecting to the retainers and the base to pivot the retainers inward.