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1 概述假台口 (渡桥 )为剧场中常用的一种舞台设备 ,假台口布置于舞台前区靠近观众厅处 ,其主要功能为调节舞台台口尺寸、悬挂舞台灯具 ;渡桥布置于舞台后区 ,其主要功能为悬挂舞台灯具。这两种设备在舞台上空结构尺寸较大、自重较大 ,因此其驱动大多采用曳引传动方式。以前的
1 Overview Fake station (bridge) is a stage equipment commonly used in the theater, the fake station is arranged in front of the stage near the auditorium, its main function is to adjust the stage size, hanging stage lighting; bridge arranged in Backstage area, its main function is to stage lighting hanging. These two devices over the stage structure size larger, heavier, so most of its drive using traction drive. Earlier