Enhancing Haptic Experience in a Seat with Two-DoF Buttock Skin Stretch

We propose a buttock skin stretch device that adopts a two-degree-of-freedom horizontal movement mechanism. We have confirmed that an acceleration sensation of self-motion can be induced by a buttock skin stretch device with one degree of freedom. In this paper, we propose a two-degree-of-freedom buttock skin deforming device that extends the direction of skin deformation, which was only in the left and right directions, to the forward and backward directions. We focused on the range of motion, position accuracy, and driving speed, and evaluated the performance of the device as a buttock skin-deforming device.