Origami deployable structures have unique characteristics that can be folded into compact forms and transformed into large functional shapes. Leveraging these features, we have created robots that show enhanced portability and mobility when folded and diverse functions when deployed. We use a variety of materials (from rigid to soft and compliant) in the construction and harness material properties to extend functionalities. Above all, our primary interest is developing deployable machines capable of bearing large loads, thereby enabling them to perform a wider range of tasks. Recently, we have been focused on scaling up our designs so that these machines can be used in various real-world scenarios.
Rollable Origami Structure for Meter-scale Deployable Arm
A rollable structure is advantageous for implementing a small-scale extendable mechanism with a high storage ratio because the structure can be tightly wound around the hub. However, since the radius of the hub determines how flexible the rollable structure should be, the size of the hub typically sets a limit on the highest achievable rigidity. We propose a fan-fold-shaped rollable structure that can enhance structural rigidity without enlarging a hub. The structure, in which multiple panels are connected serially via joints that allow sliding and folding motion, can be unfolded into a zigzag shape for rigidity and folded in layers to be rolled onto the hub. Since the sliding between panels tolerates a perimeter difference under the rolling process, a multiple-layered structure, which scales rigidity, can be wound around the same-sized hub, irrespective of layer count. We also developed a weaving method to fabricate the structure, and the prototype could extend from 386mm to 1936mm and handle 500g at horizontal full extension. Our results indicate an impressively rigid extended arm with high compactness.
Keywords : #Origami, #Deployable Arm
Related papers and patents
Deployable high-strength robotic arm with fold-and-roll storing method and Moving robot comprising the same (Korea Patent Registration number 10-2569390)
Large-scale Deployable Structure with High Load-bearing Capability
This research introduces a novel approach to the design and fabrication of large-scale deployable structures with high load-bearing capabilities by harnessing the origami principles. Origami techniques, renowned for their flexibility and foldability, offer opportunities to efficiently deploy large and heavy structures. Our study utilizes these technologies to provide innovative solutions in the construction industry. This research is expected to open new perspectives and possibilities for large construction projects and disaster relief operations.
Keywords : #Origami, #Deployable Structure
Related papers and patents
Origami type scaffold (Korea Patent Registration number 10-2469207)
Origami type scaffold with locking function (Korea Patent Registration number 10-2469208)