A safety pulley apparatus for a stage is provided. The safety pulley apparatus for a stage, on which an article traction wire, lifted by one end of the article traction wire connected to the traction device of the ceiling of a stage, is hung, comprises: a drop point pulley unit which is horizontally spaced from the traction device to be arranged at another point of the ceiling, and has a pulley formed thereon to vertically lower the other end of a wire by bending the wire; a load sensor disposed on the drop point pulley unit to sense a load applied from the wire; and a locking unit which is disposed below the drop point pulley unit, includes a pair of pressure rollers formed by respectively coupling rollers to two shafts perpendicular to the wire, for allowing the wire to pass between the two shafts, rotated around the centers of rotation thereof between the two shafts, and hung on the wire, and pressurizes the wire with the pair of pressure rollers in response to a signal detected by the load sensor to fix the same. Therefore, use of the safety pulley apparatus for a stage causes traction work using the wire to be safely performed at a more accurate location.

    무대용 안전 도르래장치가 제공된다. 안전 도르래장치는, 일단부가 무대 천정의 견인장치와 연결되어 승강되는 물품 견인용 와이어가 걸리는 무대용 안전 도르래장치에 있어서, 견인장치에서 수평방향으로 이격되어 천정의 다른 지점에 배치되며 와이어를 굴절시켜 타단부를 수직방향으로 하강시키는 도르래가 형성된 낙하점도르래유닛, 낙하점도르래유닛에 배치되어 와이어로부터 가해진 하중을 감지하는 로드센서, 및 낙하점도르래유닛의 하부에 배치되며, 와이어에 수직한 두 축에 각각 롤러가 결합되어 형성되고, 두 축 사이로 와이어가 통과되며, 두 축 사이의 회전중심 둘레로 회전되며 와이어에 걸리는 한 쌍의 가압롤러를 포함하여, 로드센서의 감지신호에 따라 가압롤러로 와이어를 가압하여 고정시키는 잠금유닛을 포함한다.


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    Title :

    Safety pulley apparatus for stage


    Additional title:

    무대용 안전 도르래장치


    Contributors:

    Publication date :

    2022-05-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    A63J DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE , Einrichtungen für Theater, Zirkusse oder dgl. / B66D Haspeln , CAPSTANS



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