FITTING STRUCTURE OF FILTER FRAME

摘要

PROBLEM TO BE SOLVED: To provide a fitting structure of a filter frame which necessitates no specific tool for replacement of the filter frame and enables simple and sure fitting of the filter frame to the lateral surface on the downstream side of a fan box. SOLUTION: The fitting structure comprises a rotary lever 14 provided on the lateral surface on the downstream side of the main body 12 of the fan box and a hook 15 provided in suspension from the rotary lever 14. The hook 15 is hitched on the filter frame 13 with the rotary lever 14 put in an open state and the filter frame 13 is pulled up by rotating the rotary lever 14. Thereby the filter frame 13 is brought into close contact with and fixed on the lateral side on the downstream side of the fan box main body 12.