[1] Nagaoka University of Technology, System Safet, Niigata, Japan
[2] National Institute of Occupational Safety and Health, The Advanced Safety Research Group, Tokyo, Japan
[3] University of Applied Sciences Wuerzburg-Schweinfurt, Behavioral Social Work, General and Clinical Psychology, Wuerzburg, Germany
[4] Japan Toyota Motor Corporation, Idec Corporation Osaka, Aichi, Japan
[5] Toyota Motor Corporation, Aichi, Japan
[6] Koremura Giken, Ballast Dep., Tokyo, Japan
[7] National Nstitute of Occupational Safety and Health, Mechanical System Safety Research Group, Tokyo, Japan