Patent ID: 6622981
Filing Date: 2003-09-23
Classification: F16M,G10G

Abstract:
A folding arm (2) mounted on a column (1) of a musical instrument stand, the arm comprising:a seat (20) mounted on the column (1), the seat (20) having a body (21) and a tube (22) perpendicular to the column (1) and extending outwards from the body (21), the tube (22) having a passage (221) longitudinally defined through a rear end of the tube (22), a slot (222) longitudinally defined through a front end of the tube (22) and in communication with the passage (221); an elbow (30) having a front part (322), a rear part (321) pivotally mounted in the slot (222) by a pivot pin (33) mounted in the front end of the tube (22), at least one movable piece (31) received in the passage (221) and pushed by the rear part (321) to tightly abut the column (1) when the elbow (30) is perpendicular to the column (1); and a bar (40) mounted on the front part (322) of the elbow (30), whereby, when the elbow (30) is perpendicular to the column (1), the arm (2) is secured on the column (1); when the elbow (30) is pivoted to a position parallel to the column (1), the at least one movable piece (31) is not pushed by the rear part (321) and the arm (2) is movable for adjusting a support height of the musical instrument stand.