PURPOSE: To facilitate the guidance in a tunnel by providing a guide rail and a handle-provided guided unit which is guided by the guide rail.
CONSTITUTION: A guide rail 8, which has a guide groove 8a, is fixed to an upper part of one side member 4 of a cable rack 3, and a guided unit 9 is moved in a lengthwise direction of the rail 8 by engaging a guide roller, provided in an outer side of the guided unit 9, with the guide groove 8a. Next in case of refuge from inside a tunnel, the handle 10 of the guided unit 9 is gripped by a worker, and the guided unit 9 is guided by the rail 8 and moved toward a gate 19. Subsequently, when the guided unit 9 arrives at a position in the vicinity of the gate 19, an acoustic device generates a sound by actuation of a switch means 20, and arrival at the gate 19 is reported by lighting an illuminating device 22. In this way, the guidance can be surely attained by a simple equipment.
UCHIYAMA JUN
MATSUZAKI YOJI
