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A requirement for human friendly robot had increased dramatically with the demand of assistive robotic technology that having direct interaction with human. One of the examples is the cooperative object transfer performed by two humans. We are aiming at generating a smooth and natural cooperative object transfers performed by a human and robotic system. Prior to the development of such system, the...
A one degree-of-freedom (vertical up-down) power assist robot was developed for lifting objects. The robot was simulated and six subjects independently lifted objects of three different sizes with the robot. In each trial, the subject used his two hands synchronously to lift the object with the robot and estimated the perceived weight of the lifted object by comparing it to a reference weight. We...
We conducted two experiments. In the first experiment, we made two objects with identical appearance. One was lifted by humans in constrained condition, another was lifted in unconstrained condition, and human's weight perception was compared between the two conditions. The results showed that weight perception for constrained lifting of objects was not too much different from that for unconstrained...
Humans frequently need to lower heavy objects for various purposes. We assume that suitable human-robot systems such as power assist systems may be comfortably used to lower heavy objects/materials. However, most of the currently available power assist devices are designed for rehabilitation and health care purposes, and hence the development of suitable power assist devices for lowering heavy objects...
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