Development of rescue support stretcher system with stair-climbing

A sarin gas incident occurred in the Tokyo subway system on March 20, 1995. This fatal gas attack caused sicknesses to many passengers. Since the disaster broke out under the ground, the main job of rescue personnel was to transport victims on stretchers to a first-aid station on the ground. So, we research and development the rescue support stretcher system for a heavy casualty disaster in underground areas or at stations can be handled in a quick, effective manner. The stretcher system is expected to help firefighters achieve efficient rescue operations. In this paper, we introduce the rescue support stretcher system for going up and down the stairs. And, we propose the technique of upgrade. Finally, we examined the effectiveness of the system by the experiment.