TUNNEL INTERIOR PLATE CLEANING DEVICE

PURPOSE: To automate operation, and to improve safety by movably installing rotary brushes vertically to an arcuate vertical frame mounted on a passage way such as an inspection gallery in the internal side face of a tunnel in a freely travelling manner and cleaning interiorly-finished plates by the rotary brushes. CONSTITUTION: A travelling frame body 8 including a vertical bearing frame 4 hung from a sidewall surface 1, an arcuate vertical frame 5 travelling on a rail 6, etc., is installed onto a passage way 30 in the side face of a tunnel so as not to be a hindrance to a car driving on a roadway. A rotary brush 17 with a dust collector 24, a projection avoiding device A with a sensor, etc., for a projection such as an indicating lamp on a wall surface, a height adjusting device B, etc., are vertically mounted movably on the arcuate vertical frame 5 of the travelling frame body 8. Dirt on the surface of a tunnel interior plate 2 is cleaned by shifting the travelling frame body 8 along the passage way while the rotary brush 17 is moved vertically. Accordingly, the interior plate 2 is cleaned automatically, and operation by a small number of operators is enabled while both safety of the operators and passing cars can be improved.