Examination of adsorption mechanism with negative pressure for small wall-climbing robot

In recent years, worker shortages due to aging infrastructure structures and a declining population have become a serious problem. Regular inspections and repairs require inspection work at high altitudes and in narrow spaces, which calls for the use of robots. In this study, we aim to develop a negative pressure adhesion type wall-climbing robot, and are building an exhaust performance evaluation experiment system to be used in the design of negative pressure adhesion mechanisms. To improve measurement accuracy, we have made improvements to the airtightness of the experimental vessel to reduce leaks, which was an issue, by changing the vessel shape and reducing joints. Evaluation experiments confirmed the high airtightness of the vessel, and we will describe the results, which confirmed the usefulness of the exhaust performance evaluation experiment system.