Disclosed is a piezoelectric inertial drive stage including a piezoelectric inertial driver, a slider and a holder. The driver includes a mounting portion for the mounting on the holder, a friction portion coupling to the slider, a flexure portion between the mounting portion and friction portion, a piezoelectric element with a first end bonded to the mounting portion and a second end bonded to a movement portion, the movement portion transferring the motion of the piezoelectric element to the friction portion to drive the slider.

A haptic feedback device includes a mechanical ground and a haptic surface. A plurality of connection points is connected to the mechanical ground and a plurality of connection points is connected to the haptic surface. An electroreactive wire extends around the plurality of connection point connected to the mechanical ground and the plurality of connection points connected to the haptic surface.

A vibration type motor includes a limiter configured to limit a distance between a movable guide member and a fixed guide member. The limiter has first, second, and third limiting areas. The first limiting area is disposed between the first roll member and the second roll member in the second direction. The second limiting area is disposed on the same side as the second roll member with respect to the first roll member and distant from the second roll member in the second direction. The third limiting area is disposed on an opposite side of the second roll member with respect to the first roll member in the second direction. A length of the first limiting area in the first direction is equal to or longer than that of each of the second limiting area and the third limiting area in the first direction.

The present invention is a novel electroactive actuator device provides high active and passive performances for electromechanical and smart systems. The electroactive actuator device is capable of operating in a manner that achieve good passive isolation characteristics, amplifies the stroke displacement per applied voltage, and also enhances the active forces of the electroactive mechanism without weight or size penalties. The electromechanical responses can be transferred to the objective systems using lightweight electrical-mechanical connectors fastened at the center of the piezoelectric actuator elements. When an alternating voltage potential is across the upper and lower electrodes of a piezoelectric actuator element, the center portions of all the piezoelectric actuator elements, as well as the electrical-mechanical connectors attached thereto, reciprocate harmoniously in one direction generating high electroactive forces and dynamic responses.

A vibration wave motor includes a vibrator including an electrical-mechanical energy conversion element and an elastic member, a contact member in contact with the elastic member, and a supporting member that supports the vibrator, wherein the supporting member supports an outer periphery portion of the vibrator so as to be movable along a direction in which the vibrator is pressed toward the contact member, and selectively supports a node of a vibration of the vibrator.

Disclosed is a piezoelectric rotary drive for a shaft, which includes a piezoelectric actuator, a deformable frame that can be coupled with a coupling section to the shaft in a force-fit manner in order to accomplish a stick-slip drive, and a loading device which can apply a preloading force to the coupling section and/or the actuator and/or the shaft. To facilitate production and assembly, the loading device can be a leaf spring which in the relaxed state extends substantially in a plane, such as along a straight line.

A motor includes a vibrator, a plurality of pressing members that presses the vibrator onto a contacting member in contact with the vibrator, a transmission member that transmits pressing force, which is applied by the plurality of pressing members, to the vibrator, a first holding member that holds the vibrator, a second holding member that holds the transmission member, and a coupling member that couples the first holding member to the second holding member. The vibrator and the contacting member move relatively by vibrations that occur in the vibrator. The vibrator includes a protruding part that is provided on a surface opposite to a surface on a transmission member side. The pressing members are arranged separately to surround the protruding part. The coupling member is arranged at a position closer to the protruding part than the pressing members.

A linear actuator has a base, a linear guide coupled to a flat, planar side of the base and extending in a travel length of an object to be moved, a contact plate extending along the flat, planar side of the base, and a carriage. The carriage includes an enclosure formed of an acoustically isolating material, a moving element configured to move along the guide and is coupled to the enclosure, a piezoelectric element including a contact site in physical contact with the contact plate, and a housing elastically holding the piezoelectric element, the housing coupled to the enclosure with no direct contact with the moving element. An electrical power source is in electrical communication with the piezoelectric element, wherein the power source energizes the piezoelectric element to effectuate movement of the carriage along the linear guide via the physical contact between the contact site and the contact plate.

A motor includes a pressing member pressing a vibrator onto a contacting member, first and second holding members respectively holding the vibrator and a transmission member, which transmits pressing force by the pressing member to the vibrator, and a coupling member coupling the first and second holding members. The vibrator and the contacting member move by vibrations occurring in the vibrator. The coupling member includes a rolling member moving the first and second holding members in a pressing direction of the pressing member, and an urging member, which is held by the second holding member, urging the first and second holding members in parallel with a moving direction of the vibrator and the contacting member. The rolling member is sandwiched between the first and second holding members, and abuts against the first holding member on a center side of the vibrator in the moving direction.

An electromechanical stator includes an actuator section, a support section and a spring section. A continuous sheet of elastic material constitutes at least a part of each of these sections. The actuator section includes a vibration body and a moved-body interaction portion. The vibration body includes an electromechanical volume. The spring section is elastic, with a spring constant, enabling provision of a normal force in the vibration direction upon displacement of the fixation point. Also an electromechanical motor and a method of operating such an electromechanical motor are disclosed.