Abstract: The invention relates to a positioning device (1), comprising: a stator (2); a driven element (6); a guide apparatus (7) for bearing the driven element (6) in a guided manner with respect to the stator (2) in a drive direction when the positioning device (1) is operational; a slider (4); a bearing apparatus (3) which bears the slider (4) so as to be movable relative to the stator (2) in the drive direction; a drive device (5) which drives the slider (4); a coupling apparatus (8); and a clamping apparatus (83).

Abstract: The present disclosure relates to an electromechanical linear drive having a housing, an electromechanical drive unit, a transmission element which is coupled to the electro-mechanical drive unit, and an element to be driven which is in frictional contact with the transmission element, where the transmission element is mounted on at least two bearing points with respect to the housing. Improved accessibility to the element to be driven and a longer adjustment path of the element to be driven can be achieved by placing the element to be driven in frictional contact with the transmission element at a point of engagement outside of all bearing points.

Abstract: The invention relates to a rotation actuating device (1), comprising a base (2), a rotor (3) and at least two groups (40, 42) of drive units, each group comprising at least two drive units (4), wherein the drive units (4) are arranged peripherally on the base (2) and between the base and the rotor (3), wherein each drive unit (4) comprises two deflectable actors (5), which are arranged in a V-shape with respect to each other, and a friction element (6), which is connected to both actors, and wherein the rotor (3) and the friction elements (6) are pressed in a direction toward each other by means of a spring device (30) arranged between the drive units (4), such that, when the actors (5) are not deflected, all the friction elements (6) are in contact with the rotor (3) and jointly span a contact plane (K), wherein a continuous movement of the rotor (3) is realized by means of phase-offset control of the actors (5) of different groups (40, 42) of drive units (4).

Abstract: The present disclosure relates to an electromechanical linear drive having a housing, an electromechanical drive unit, a transmission element which is coupled to the electro-mechanical drive unit, and an element to be driven which is in frictional contact with the transmission element, where the transmission element is mounted on at least two bearing points with respect to the housing. Improved accessibility to the element to be driven and a longer adjustment path of the element to be driven can be achieved by placing the element to be driven in frictional contact with the transmission element at a point of engagement outside of all bearing points.

Abstract: A piezoelectric stepper drive includes a piezoelectric drive apparatus with at least two drive sections, each acted upon by at least two piezoelectric actuators, and a driven member which is advanced by at least one of the drive sections when control voltages are applied to the actuators. The drive apparatus is configured approximately in the shape of a triangle, at the tip of which the drive sections are arranged. At least one of the drive sections is biased against the driven member, in the absence of control voltages applied to the actuators, such that the drive section blocks advance of the driven member, where each of the drive sections is mounted individually resilient relative to a base of the triangle.

Abstract: A piezoelectric stepper drive includes a piezoelectric drive apparatus with at least two drive sections, each acted upon by at least two piezoelectric actuators, and a driven member which is advanced by at least one of the drive sections when control voltages are applied to the actuators. The drive apparatus is configured approximately in the shape of a triangle, at the tip of which the drive sections are arranged. At least one of the drive sections is biased against the driven member, in the absence of control voltages applied to the actuators, such that the drive section blocks advance of the driven member, where each of the drive sections is mounted individually resilient relative to a base of the triangle.