Haptic feedback device with stiffeners

摘要

The invention relates to a device (1) with haptic feedback comprising a support made of a purely elastic or weakly viscoelastic material (4), the upper face (7) of which is coated with at least one layer (2,3) incorporating a detection means. of the position of a user's finger, and comprising electromechanical actuators capable of causing said support (4) to vibrate at an ultrasonic resonance frequency, characterized in that said support (4) comprises on its lower face (8 ) a set of stiffeners (5) configured to obtain an axial mode of vibration of the device in a direction parallel or perpendicular to the alignment of the actuators. Figure for the Abstract: figure 3