Linear driving mechanism with self-weight compensation, operation input device, and surgery assistance system
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United States of America Patent
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Aug 22, 2017
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app pub date -
Dec 10, 2014
filing date -
Jun 13, 2012
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Abstract
When the mass of the first moving body is defined as M1, the mass of the second moving body is defined as M2, the distance between a first intersection point of a perpendicular line from a rotation center of the rotation axis to the first moving body and a first gravity center of the first moving body when the distance between the first intersection point and the first gravity center in the first moving body is the shortest is defined as L1, and the distance between a second intersection point of a perpendicular line from the rotation center of the rotation axis to the second moving body and a second gravity center of the second moving body when the distance between the second intersection point and the second gravity center in the second moving body is the shortest is defined as L2, M2=(L1/L2)×M1 is satisfied.
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