Tohoku University Technology: Variable stiffness deformable body and mechanism: T20-1262
Possible to bend in any direction in the flexible state and to keep stiffness in the rigid state
Today, several mechanisms that can switch between a deformable flexible state and a high rigidity state are known. For example, there is a mechanism to increase rigidity by applying negative pressure to the wire, or a mechanism in which adjacent connecting parts increase the rigidity of the joint area. However, there were various issues such as the rigidity limitation due to the limit of the negative pressure, the difficulty of achieving high rigidity at the extremity due to the length of the wire, or the inability to bend the wire in any direction. This invention solves above issues, and is able to provide a variable stiffness deformable body and mechanism which can bend in any direction at flexible state, increase rigidity at high rigidity state, and make the entire body highly rigid even if it is lengthened. The invention is characterized by a long flexible deformable body, a long bag shaped body, a support mean and a fluid supply / discharge mean. The invention is able to fix the body shape at high rigidity even if the body is bent, twisted in any direction or straightened, by suppling the fluid into the bag interior.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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