TY - JOUR PY - 2016// TI - A self-aligning knee joint for walking assistance devices JO - Conference proceedings - IEEE engineering in medicine and biology society A1 - Byungjune Choi, A1 - Younbaek Lee, A1 - Jeonghun Kim, A1 - Minhyung Lee, A1 - Jongwon Lee, A1 - Se-Gon Roh, A1 - Hyundo Choi, A1 - Yong-Jae Kim, A1 - Jung-Yun Choi, SP - 2222 EP - 2227 VL - 2016 IS - N2 - This paper presents a novel self-aligning knee mechanism for walking assistance devices for the elderly to provide physical gait assistance. Self-aligning knee joints can assist in flexion/extension motions of the knee joint and compensate the knee's transitional movements in the sagittal plane. In order to compensate the center of rotation, which moves with the flexion/extension motion of the human knee joint, a self-aligning knee joint is proposed that adds redundant degrees of freedom (i.e., 2-DoF) to the 1-DoF revolute joint. The key idea of the proposed mechanism is to decouple joint rotations and translations for use in lower-extremity wearable devices. This paper describes the mechanical design of this self-aligning knee mechanism and its implementation on a wearable robot and in preliminary experiments. The performance of the proposed mechanism is verified by simulations and experiments.

Language: en

LA - en SN - 1557-170X UR - http://dx.doi.org/10.1109/EMBC.2016.7591171 ID - ref1 ER -