BigPatents India

The piezoelectric motor (6) comprises a stator (1) and an armature (4) forming a gap (7), in addition to a piezoelectric transformer (3) that is connected to the stator (1) or the armature, said transformer forming a resonator (1,3; 4,3) together with the stator (1) or the armature (4). The resonator (1,3; 4,3) can be excited in a main direction of vibration (H), wherein the stator (1) has a working surface (l a; 4a) facing the armature (4) or the armature (4) has a working surface (l a; 4a) facing the stator (1). The stator (1) or the armature (4) comprises an elastic forward feed element (5) extending at an angle (?) relative to the main direction of vibration (H), said element bridging over the gap (7) between the stator (1) and the armature (4) in such a way that the forward feed element (5) is located at least temporarily on the working surface (la;4a). The forward feed element (5) has a first partial section (5c) and a second partial section (5d), wherein said partial sections (5c,5d) have a different resonance frequency. (FIG.1)