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POWER ASSIST DEVICE AND CONTROL METHOD THEREFOR

  • US 20110040411A1
  • Filed: 02/26/2009
  • Published: 02/17/2011
  • Est. Priority Date: 02/27/2008
  • Status: Active Grant
First Claim
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1. A control method for a power assist device having an operation section to be operated by an operator, an operation force detection unit that detects an operation force applied to the operation section and an orientation of the operation force, a robot arm that supports the operation section, and a drive unit that drives the robot arm, the method comprising:

  • when an angle formed by the orientation of the operation force applied to the operation section detected by the operation force detection unit and a preset advancing direction of the operation section is within a predetermined angle range, controlling the drive unit so as to move the operation section along the advancing direction; and

    when the angle formed by the orientation of the operation force applied to the operation section detected by the operation force detection unit and the advancing direction is outside the predetermined angle range, controlling the drive unit so as to move the operation section along the orientation of the applied operation force.

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