Rotary actuation mechanism

US10072744B2 · kind B2 · utility

Assignee

• Sarcos, LC · US

Inventors

• Fraser M. Smith · Salt Lake City, US
• Shane Olsen · Farmington, US
• Michael Morrison · West Jordan, US
• Glenn Colvin · Waltham, US
• Brian J. Maclean · Salt Lake City, US
• Alan Hart · Waltham, US

Key dates

• Filing date: Mar 13, 2013
• Grant date: Sep 11, 2018
• Expiry date: Apr 11, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/1892
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A rotary actuation mechanism comprising an actuator having a body, and a slider movable on a linear path relative to the body. A first linkage can be pivotally coupled to the body at a first pivot having a first axis. A second linkage can be pivotally coupled to the slider at a second pivot having a second axis, and pivotally coupled to the first linkage at a third pivot. A length of the first linkage between the first pivot and the third pivot can be equal to a length of the second linkage between the second pivot and the third pivot. The slider can be movable to position the second axis in a collinear relationship with the first axis. The rotary actuation mechanism can include an anti-singularity device to constrain movement of the body when the first axis and the second axis are in the collinear relationship.