In recent years, disaster rescue robots have been attracting attention for their ability to take the place of humans at disaster sites. This study focuses on rescue robots that mimic living organisms. Most of the conventional rescue robots have crawlers or multiple legs, and the height difference of the steps they can descend is limited. Therefore, in this study, we propose a descent and return mechanism for mobile robots can freely descend and return to original location even in locations with large elevation differences, by referring to the ascending and descending movements of a spider. The main contributions of this work are the proposal of a spider‐inspired, pass‐through descent mechanism that overcomes the travel‐distance limitations of conventional winches, and the quantitative experimental validation of the adhesive strength of a temporary anchor using water‐soluble glue on common building materials. © 2026 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.
Morishita et al. (Wed,) studied this question.