This technology features a foldable module and a foldable manipulator that utilizes an origami-inspired Sarus linkage structure, allowing for a single-degree-of-freedom transformation between a cubic state and a flat state. It achieves structural rigidity in its upright position through the folding and interlocking mechanism of its side plates and lockers.
Conventional robotic arms are often bulky and complex, which can compromise flight stability due to weight and dynamic coupling issues when applied to small mobile platforms like drones. Furthermore, attempts to increase degrees of freedom for miniaturization often result in reduced rigidity, making the structure vulnerable to external forces.
This technology proposes a method to ensure cubic rigidity by incorporating top and bottom plates, a second side plate divided into foldable and non-foldable sections, and a locker that engages with the first side plate to provide a locking mechanism. The entire module's shape transformation can be controlled with a single degree of freedom using an actuator that adjusts the tension of a wire passing through wire holes. This provides an innovative solution that achieves both compact storage when folded and high rigidity when deployed, making it ideal for drone-mounted robotic arms, space structures, and portable work equipment.
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