Development of Rockfall Prevention Net Climbing Robot Using a Quadric Chain

Abstract

We developed a robot that moves freely over rockfall prevention nets along national roads in Hokkaido. We start by discussing functions required of robots for rock mass investigation. We propose two robots - a climbing robot that climbs to install wires on rockfall prevention nets and an investigation robot that uses these wires to move to the investigation locations to be checked. We then introduce our climbing robot (prototype V), which uses a quadric chain driven by a single motor to climb rockfall prevention nets at 5m/min.