| 摘要 |
PURPOSE: A fireproof screen shutter is provided, which improves expansion of the usage range and flame shield effect and can block a transition path of flame. CONSTITUTION: A fireproof screen shutter comprises: a driving shaft(10) installed erect inside a housing; a fixed shaft(20) installed inside the housing separated from the driving shaft at the constant interval; upper and lower driven drums(30,30') rotating through a connection rod; upper and lower orbit guide rails(40,40') which are fixed in the seating plane using a bracket; a plurality of shutter support rollers which are inserted into the upper and lower orbit guide rails; a wire(60) in which both ends are integrally connected and fixed to the drums; and a screen shutter(70) connected and fixed to the connection rod.
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