This paper describes the development of new locomotion interface device called ’Seated Walker 2’. The ’Seated Walker 2’ reproduces the walk sensation by a translational movement of the chair. By adding parallel link mechanism that converts the rotational movement around the waist to the translational movement of the chair, we succeeded in minimizing the size of the device. In this paper, we solved the relationship between the rotational movement around the waist and the translational movement of the chair and showed the way to control our new device. We also evaluated the performance of the ’Seated Walker 2’.
