Sheet shutter case frame

Abstract

This item is a sheet shutter case framework that contains a drum and a sheet wrapped around the drum, used in sheet shutters that connect or separate spaces by raising and lowering a sheet. As shown in the reference diagram showing the connection method, the head of the long reinforcing frame is inserted into the groove of the first main frame and rotated 90 degrees, increasing the contact area between the head and the groove, connecting adjacent first main frames with the long reinforcing frame. Second main frames and short reinforcing frames are also connected using a similar method. As shown in the reference oblique diagram with a cover plate attached, a cover plate, which forms the outer surface, is attached around the frame of the sheet shutter case, fitting into the rails of the first and second main frames.

Images