Abstract
We focus tactile stimulus on a sole during walking to clarify mechanisms of fall and walking adapted for irregular terrain. Therefore, this paper proposes the development of the force sensor which can measure 3-axis distributed forces acting on a sole during walking. To measure the 3-axis distributed forces, a sheet of silicone rubber on which a number of circular truncated cone projections are putted designed and developed. The relation between the force and the deformation of a projection is verified with the developed sheet of silicone rubber. Therefore, the 3-axis distributed forces can be measured from the deformation of projections.