Abstract
We have been researching on an information gathering robot. Before a rescue team enters to save the people who encountered the damage in a disaster and the terrorism spot safely, this robot searches for a safe course for the rescue team, dangerous equipments and the victim. In this report, we propose a small, light weight and portable robot which can enter narrow space. This robot has extendable spiny wheels of which diameter be able to change from 0. 12[m] to 0.24[m] to adapt rough terrain. We produced a prototype of this robot and confirmed the motion of this mechanism experimentally.
