Experts have invented a four-legged robot called LORIS, which stands for Lightweight Observation Robot for Irregular Slopes or “Lightweight Observation Robot for Irregular Slopes.” The development was also named after the family Loriidae, primates – lemurs.
LORIS is equipped with four legs with micro rear grips. They consist of many small sharp hooks that are caught in small depressions in the surface on which the climb is made. This is how these types of robots differ from machines that use suction-based grasping systems to move.
But such robots can only be used on smooth surfaces, while microspin grippers can be used on rough surfaces such as brick or stone walls. However, the use of such robots is limited by the level of irregularity and roughness on the surface.
This is why LORIS differs even from similar robots: Other versions with microspinal grippers use a passive gripper that “relies on the weight of the robot.” And LORIS uses an active gripper with motorized drives that deliberately push the hook loops to the surface, providing a motorized gripper that works in all directions. This is essential to ensure any removal scenario and strategy.
At the end of each of the robot’s four legs is a branched microspinal gripper consisting of two sets of spikes placed at right angles to each other. The grip part is connected to the leg by a passive ankle joint. So the grip just swings in the air and actively reacts to what the leg is doing. This also allows the weight of the robot to be significantly reduced.
Source: Ferra
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