The shutter is structured so that the shutter does not detach from the guide rail even by the wind pressure

摘要

end. The technical field to which the invention described in the claims belongs;The present invention is to prevent the shutter from being detached from the guide rail by wind pressure or external pressure, and can accurately induce the rise and fall of the shutter, and provide a shutter in which the shutter does not detach from the guide rail by any wind pressure or external pressure. It is to.;I. The technical problem to be solved by the invention;In all conventional shutters, the shutter, one side of which is fixed to the winding drum driven by the motor, is raised and lowered by the forward and reverse rotation of the winding drum. In the guide rail having a constant recessed portion is formed to be raised and lowered.;However, when the width of the shutter is somewhat longer, the warpage may occur even when the shutter plates constituting the shutter are reinforced, and eventually the shutter is detached from the guide rail.;All. Summary of Solution of the Invention;A fixing member in which the inner projection is formed inside the recess of the guide rail so as to protrude to a certain width at a proper position, and the stepped portion is formed in each shutter plate constituting the shutter so as not to be detached from the inner space formed by the inner projection. To ensure that the shutter does not detach from the guide rail under any conditions.;la. Important uses of the invention;A shutter that prevents the shutter from detaching from the guide rail even by wind or external pressure.