ROOFTOP SNOW CAST-IN PORT IN LARGE-SCALE SNOW STORING AND MELTING FACILITY AND CONSTITUTING METHOD FOR OPENING-CLOSING DEVICE OF DOOR

摘要

PROBLEM TO BE SOLVED: To prevent uselessness in structure and managing space due to swinging and sliding of a door-shaped cover in opening and closing by a single structure un opening and closing the door-shaped cover of a rooftop snow cast-in port in a large-scale snow storing and melting facility. SOLUTION: In opening and closing the door-shaped cover, the door-shaped cover is slidingly operated in a double folding door structure.