AN APPARATUS FOR PREVENTING PIT COVER FROM DROPING IN THE PIT

摘要

PURPOSE: A fall preventing device of a pit cover inside a pit is provided to previously prevent accidents by installing a variable supporting device. CONSTITUTION: A case(20) is removably installed inside a loading portion(10). The loading portions are formed in both sides of a pit opening(220a) lengthwise at regular intervals. A power carriage portion of an unloader is moved in the pit opening. A rotating member(30) is installed inside the case to be rotatable. A supporting member(32) prevents the fall of a pit cover on the pit opening by protruding on the pit opening and horizontally fixing in the end of the rotating member. Thereby, the fall of the pit cover inside a pit is prevented effectively.