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Design and path planning of an encountered-type haptic display for multiple fingertip contacts based on the observation of human grasping behavior

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5 Author(s)
Yokokohji, Y. ; Dept. of Mech. Eng., Kyoto Univ., Japan ; Muramori, N. ; Sato, Y. ; Kikura, T.
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Unlike conventional haptic devices, an encountered-type device is not held by a user all the time. Instead, the device stays at the location of a virtual object and waits for the user to encounter it. In this paper, we extend this concept to fingertip contacts and design an encountered-type haptic display for multiple fingertip contacts to simulate tasks of grasping an object with any shape and size. Before designing the device, we intensively observed human grasping behaviors. This observation was very helpful to determine the mechanism of the device. An encountered-type device for three-fingered grasping was actually prototyped based on our design. We then discuss a path planning algorithm for the designed device, once again based on the observation of human grasping behaviors. A rough sketch of the algorithm is proposed and a preliminary experimental result to support our idea is shown.

Published in:

Robotics and Automation, 2004. Proceedings. ICRA '04. 2004 IEEE International Conference on  (Volume:2 )

Date of Conference:

April 26-May 1, 2004