Magnetic assembly of soft robots with hard components

US9962832B2 · kind B2 · utility

Assignee

• President and Fellows of Harvard College · US

Inventors

• Sen Wai Kwok · Watertown, US
• Stephen A. Morin · Lincoln, US
• Bobak Mosadegh · New York, US
• Ju-Hee So · Cary, US
• Robert F. Shepherd · Windom, US
• George M. Whitesides · Newton, US

Key dates

• Filing date: Mar 4, 2014
• Grant date: May 8, 2018
• Expiry date: May 29, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S901/39
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Reconfigurable soft robotic actuators with hard components are described. Magnetic attraction is used to couple flexible molded bodies capable of actuation upon pressurization with other flexible molded bodies and/or with hard components (e.g., frames and connectors) to form a seal for fluidic communication and cooperative actuation. Pneumatic de-coupling chambers built into the hard components to de-couple the hard components from the magnetically-coupled soft molded bodies are described. The use of magnetic self-alignment coupling and pneumatic de-coupling allows for the remote assembly and disassembly of complex structures involving hard and soft components. The magnetic coupling allows for rapid, reversible reconfiguration of hybrid soft-hard robots for repair, testing new designs, and carrying out new tasks.