螺旋型永久磁石を用いない磁気ねじ機構です．磁力によって動力伝達できるため，過剰な負荷に対する力のリミッタ機能などを持ちます．
Development of a Magnetic Lead Screw (MLS) and an MLS driven Linear Actuator
Force-controllable actuators are essential for guaranteeing safety in human-robot interactions. Magnetic lead screws (MLSs) transfer force without requiring contact between parts. These devices can drive the parts with high efficiency and no frictional contact, and they are force limited when overloaded. We have developed a novel MLS that does not include spiral permanent magnets and an MLS-driven linear actuator (MLSDLA) that uses this device. This simple structure reduces the overall size of the device and improves productivity because it is constructed by a commonly used machined screw as a screw. The actuator can drive back against an external force, and it moves flexibly based on the magnetic spring effect.
Member: Akira Heya, Yoshihiro Nakata, Masahiko Sakai, Hiroshi Ishiguro, Katsuhiro Hirata (Osaka University)
Camera&Edit: Kristian Hoeck