EMERGENCY RELEASING MECHANISM FOR ROLL APRON

PROBLEM TO BE SOLVED: To provide a simple emergency releasing mechanism capable of protecting the segment of a roll apron by the automatically operation in the case of generation of troubles such as the stop of casting or the like in continuous casting. SOLUTION: In the emergency releasing mechanism, an upper and lower frame divided into an upper part and lower part are connected with fixing rods. The mechanism is provided with a rod fixing hardware 5 connecting one side frame 7 to the fixing rod 6, a pressure sensor 1 detecting an abnormal pressure, a pressure switch outputting signals from the pressure sensor to a hydraulic solenoid valve, the hydraulic solenoid valve being operated with signals from the pressure switch and feeding an oil to a hydraulic cylinder, and the hydraulic cylinder being operated with the feeding oil. When the segment is affected by the abnormal pressure (a deforming force according to cooling for hot cast slabs in the roll apron due to the stop of casting), the rod fixing hardware is rotated by the operation of the hydraulic cylinder, the projecting part of the rod is unlocked from the rod fixing hardware, and the connection between the frame and the fixing rod is released.