Manipulator and control method therefor

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United States of America Patent

PATENT NO 5130632
SERIAL NO

07622633

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A manipulator, having six degrees of freedom of movement and having a force sensor mounted thereto, is controlled by computing forces and moments applied to the regions of the manipulator from the output of the force sensor. When a force and/or a moment in excess of an allowable load and an allowable load moment of the regions is applied to any region, the joint subjected to the largest load is stopped to save energy consumption of the manipulator. Alternatively by driving the joint in the direction of lessening the load and the load moment, forces and/or moments are prevented from being applied to the regions of the manipulator. Therefore, optimum design is made possible with regard to the strength of the regions of the manipulator and reductions in size and weight of the manipulator can be achieved.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTD A CORP OF JAPAN6 KANDA SURUGADAI 4-CHOME CHIYODA-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ezawa, Naoya Yokohama, JP 3 112
Takarada, Shinichi Yokohama, JP 18 698

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