ANGLE ADJUST EQUIPMENT OF SOUND REFRECTION BOARD FOR STAGE

摘要

PURPOSE: Disclosed is an angle control device of sound reflective plate for the stage not to cause transformation of whole sound reflective plate by lightening weight of whole tilting device, to prevent concentration phenomenon of sound by reflecting sound played in the stage by forming inclination horizontally, to transmit more vivid original sound, beautiful sound to audience of the seats in playing opera or symphony by having in ceiling part of the stage. CONSTITUTION: The angle control device of sound reflective plate for the stage comprises at least one rotor bracket(100) or more to be equipped in the inside of horizontal molding(101) being equipped in the middle part of sound reflective plate horizontally; vertical frame(200) to be equipped with tilting bracket(210) to hinge-assemble easily by binding top end with plural hanger wire to go up and down the sound reflective plate at regular interval in the back direction of sound reflective plate and by hinge-binding bottom end with the rotor bracket(100); tilting cylinder(300) to tilt sound reflective plate with former and later stroke by hinge-binding cylinder rod(320) with rod bracket(321) being equipped in bottom side of the tilting bracket(210) and by hinge-binding cylinder head(310) in at least one bottom end among numerous tilting bracket(210) or more.