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A methodology for setting the reference value of a grasping force when a multi-finger robotic hand grasps and lifts up an object without knowing its characteristic weight, coefficient of static friction, and stiffness was devised. The grasping force must be set to avoid dropping or deforming the object. To fulfill this requirement, the methodology measures object characteristics by detecting the moment...
Human-symbiotic humanoid robots that can perform tasks dexterously using their hands are needed in our homes, welfare facilities, and other places. To improve their task performance, we propose a motion control scheme aimed at appropriately coordinated hand and arm motions. By observing human manual tasks, we identified active body-environment contact as a kind of human manual skill and devised a...
Human-symbiotic humanoid robots that can perform tasks dexterously using their hands are needed in our homes, welfare facilities, and other places. To improve their task performance, we propose a motion control scheme aimed at appropriately coordinated hand and arm motions. By observing human manual tasks, we identified active body-environment contact as a kind of human manual skill and devised a...
In this paper, we proposed a soft skin design method of human symbiotic robots which achieves collision safety in all collision situations. At the same time, soft skin design has to be optimized for the collision safety and the workability. Therefore we evaluate effectiveness of soft skin at each position on arm in longer-direction, and optimize its thickness along collision position. Firstly we discuss...
We describe a space-efficient visco-elastic mechanism design for a small lightweight flexible joint of a human-symbiotic robot arm. Human-symbiotic robots that can provide daily life support will be required in houses, offices, facilities, and other places. Since they will often make physical contact with humans, their arms should have mechanical flexible joints to absorb the contact force and follow...
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