抄録
This paper arranged the situation of using upper stage-machinery and clarified the logic of movement of the machinery at the theaters. On basis of analysis about eight cases, we grasped following facts: light button needs to fine-tune its height and it is operated frequently; variable speed of machinery is utilized in term of set-up, and has good possibility of the stageeffect; the manual operated machinery has some problems on its low reappearance of movement; there are some difficulty on computer operation of the machinery when we suddenly want to operate the machinery flexibly or irregularly, and when we input or change data of operation into computer. The operation of stage-machinery is divided into two groups and classified into four categories based on the contents of operation, and there are eight patterns in the operation with its kind of load. In view of these facts, we clarify the design of stage machinery is important to make the theater useful and attractive.
