Human safety is one of the most important problems in human-friendly robotics. We have developed a safety device to improve human safety. The safety device consists of only mechanical components without actuators, controllers, or batteries. We expect that the safety device guarantees the safety even if the computer does not work. In this paper, we design and develop a robot equipped with the safety devices. The robot has two 5-DOF arms, two drive wheels and two caster wheels. (First, we explain the mechanism of the safety device, briefly. Second, we design and develop a robot with the safety devices. Finally, we experimentally examine the usefulness of the safety devices mounted on the arms of the robot.
