Tripod stand for microphone has legs hinged on central body carrying telescopic upright tube with swivel clamp at top holding boom for microphone

摘要

The upright consists of an outer tube (20) at the bottom and an inner tube (21) at the top. A hollow screw (29) at the top of the outer tube forms a bearing for the inner tube. It has a through bore (291) for the inner tube and a male thread (292) engaging the threaded end of the outer tube. There is a longitudinal guide groove (201) inside the outer tube. There is a fastening plate (23) at the bottom of the inner tube, with a central bore (231) to accommodate a fastening screw (27). There is an expanding dowel (24) and a spring (25). The screw forces a cone (26) into the dowel to expand it and lock the inner tube in place inside the outer tube.