| 摘要 |
PURPOSE: A flat screen apparatus is provided to prevent damage to a sensing unit and reduce energy consumption by selectively operating the load of debris trapped on a screen. CONSTITUTION: A flat screen apparatus comprises a frame(10), a screen(20), a guide rail(30), a chain(40), a rake(50), a sprocket(60), a sprocket driving unit(70), a hinge unit(80), an angle shift unit(90), an elastic supporting unit(100), and a load sensing control unit(110). The hinge unit comprises a hinge shaft and a hinge hole. The angle shift unit comprises angle shift rods which are formed on both sides of the upper part of the screen and sliding holes in which the angle shift rods are inserted and slid. The elastic supporting unit elastically supports the screen so as to return the screen to the original position after removal of debris. The load sensing control unit comprises a contact rod and a contact sensor. |
