Fig. 3: Hand-like mechanical design.
From: Hand-like autonomous flying robot for airborne grasping and interaction

a Biological structure of human hands: (i) tendon drive mechanism, (ii) open grasping configuration, (iii) multi-DoF joint structure. b HI-ARM's mechanical design and component details: (i) status of Normal Size, (ii) status of Compact Size. c Structure diagram in Normal Size. d Structure diagram in Compact Size. e Self-recovering tendon drive mechanism. f Adaptive deformation for grasping different objects.