Abstract: A piezoelectric motor includes a piezoelectric element having a piezoelectric layer, and a first and a second electrodes, the first electrode provided on one surface side of the piezoelectric layer, and the second electrode provided on the other surface side of the piezoelectric layer; a piezoelectric actuator having a vibrating member anchored to the first electrode of the piezoelectric element; and a rotational shaft with which the vibrating member makes contact and is rotated thereby.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: A piezoelectric motor includes a piezoelectric element having a piezoelectric layer, and a first and a second electrodes, the first electrode provided on one surface side of the piezoelectric layer, and the second electrode provided on the other surface side of the piezoelectric layer; a piezoelectric actuator having a vibrating member anchored to the first electrode of the piezoelectric element; and a rotational shaft with which the vibrating member makes contact and is rotated thereby.

Abstract: A piezoelectric motor includes: a piezoelectric actuator; and a driven portion. The piezoelectric actuator includes a piezoelectric element and a vibration member. The piezoelectric element has a piezoelectric layer and a first and a second electrode provided on both surfaces of the piezoelectric layer, respectively, and the vibration member is fixed on the first electrode side of the piezoelectric element. The driven portion which is rotated by the protrusion portion of the vibration member vibrated by the piezoelectric element, while the driven portion being abutted thereon. In the piezoelectric motor, a plurality of grooves which are open at a tip end surface of the protrusion portion and penetrate in a thickness direction are provided on a plurality of points of the protrusion portion along a rotation direction of a rotation shaft of the driven portion.

Abstract: A moving mechanism includes a support, a moving body arranged movably in a predetermined direction relative to the support, a first groove provided in the support parallel to the moving direction, a second groove provided in the moving body parallel to the moving direction, and facing the first groove, and a vibrating body arranged in the support or moving body and biased to press the other of the moving body or the support. A direction which the first groove and the second groove face each other intersects a direction which the support and the moving body face each other, and a biasing direction which the vibrating body is biased intersects the direction which the first groove and the second groove face each other and the direction which the support and the moving body face each other. Accordingly, backlash of the moving body with respect to the support is suppressed.

Abstract: A moving mechanism includes a first moving body arranged to move in a first direction relative to a support, a second moving body provided on a side of the support with the first moving body therebetween, and moves in a second direction intersecting the first direction relative to the first moving body, and a first vibrating body arranged in the support and biased to press the moving body or is arranged in the first moving body and biased to press the support. A direction in which first and second grooves face each other intersects a direction in which the support and the moving body face each other, and a biasing direction in which the first vibrating body is biased intersects the direction in which the first and second grooves face each other and the direction in which the support and the moving body face each other.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: A motor includes: a driven unit having a cylindrical shape; an actuator having a protrusion abutting on the driven unit; and an impelling unit impelling the actuator against the driven unit, wherein, assuming that the trajectory of the protrusion is disposed to abut on a side surface of the cylindrical shape at a contact point P and a point of action where an impelling force is exerted on the actuator is a point of action Q, the relation between an angle ?1 between the impelling direction of the impelling unit and a direction connecting a rotational center R of the driven unit and the contact point P and an angle ?2 between the impelling direction of the impelling unit and a direction connecting the contact point P and the point of action Q satisfy a relationship of ?1<?2.

Abstract: A motor including a driven unit; an actuator including a vibrating plate having, at an end thereof, a protrusion which is biased toward the driven unit and a piezoelectric body stacked on the vibrating plate; and a biasing unit biasing the actuator toward the driven unit, wherein an axis in a direction in which the biasing unit biases the actuator toward the driven unit intersects with a plane containing a vibrating surface of the vibrating plate.

Abstract: A motor includes a vibrating plate having a projection part to be pressed against a driven member and a piezoelectric material provided on the vibrating plate, wherein a Young's modulus EL in the pressing direction of the vibrating plate and a Young's modulus ES in a direction crossing the pressing direction are different.

Abstract: A piezoelectric motor includes: a piezoelectric actuator; and a driven portion. The piezoelectric actuator includes a piezoelectric element and a vibration member. The piezoelectric element has a piezoelectric layer and a first and a second electrode provided on both surfaces of the piezoelectric layer, respectively, and the vibration member is fixed on the first electrode side of the piezoelectric element. The driven portion which is rotated by the protrusion portion of the vibration member vibrated by the piezoelectric element, while the driven portion being abutted thereon. In the piezoelectric motor, a plurality of grooves which are open at a tip end surface of the protrusion portion and penetrate in a thickness direction are provided on a plurality of points of the protrusion portion along a rotation direction of a rotation shaft of the driven portion.

Abstract: A piezoelectric motor includes a piezoelectric element having a piezoelectric layer, and a first and a second electrodes, the first electrode provided on one surface side of the piezoelectric layer, and the second electrode provided on the other surface side of the piezoelectric layer; a piezoelectric actuator having a vibrating member anchored to the first electrode of the piezoelectric element; and a rotational shaft with which the vibrating member makes contact and is rotated thereby.

Abstract: A piezoelectric actuator includes: a vibrator that includes a piezoelectric element, a first drive electrode and a second drive electrode, the piezoelectric element vibrated by a combination of at least two vibration modes including a first vibration mode and a second vibration mode, the first drive electrode applying a first drive signal that excites a vibration of the first vibration mode, the second drive electrode applying a second drive signal that excites a vibration of the second vibration mode; and a phase adjuster that adjusts a phase of at least one of the first and second drive signals.

Abstract: A method for driving a vibration cutter includes inputting an alternate current in an actuator section to vibrate a plate-like blade connected to the actuator section, wherein the blade section is vibrated in a plate face direction and a thickness direction of the blade section.

Abstract: A liquid cartridge includes: a container section that stores liquid; a plate-like vibration body that is submerged in the liquid and flows the liquid; and a driver section that drives the vibration body in a thickness direction, wherein the vibration body has an end section, and at least a portion of the end section of the vibration body in an in-plane direction continuously becomes thinner toward an end of the vibration body.

Abstract: A liquid flowing device includes: a plate-like vibration body; and a driving section that vibrates the vibration body in a thickness direction, wherein at least a portion of an end section of the vibration body in an in-plane direction continuously becomes thinner toward an end of the vibration body.

Abstract: A piezoelectric actuator includes: a vibrator that includes a piezoelectric element, a first drive electrode and a second drive electrode, the piezoelectric element vibrated by a combination of at least two vibration modes including a first vibration mode and a second vibration mode, the first drive electrode applying a first drive signal that excites a vibration of the first vibration mode, the second drive electrode applying a second drive signal that excites a vibration of the second vibration mode; and a phase adjuster that adjusts a phase of at least one of the first and second drive signals.

Abstract: A rectangular vibrating plate 10 in which a piezoelectric element and a reinforcing plate are stacked is supported on a main plate by a support member 11, and is urged toward the rotor 100 by an elastic force of the support member 11. This brings a projection 36 provided on the vibrating plate 10 into abutment with an outer peripheral surface of the rotor 100. In this construction, when the vibrating plate 10 vibrates in the horizontal direction in the figure by an applied voltage from a driving circuit (not shown), the rotor 100 is rotated in a clockwise direction in accordance with the displacement of the projection 36 due to the vibration.

Abstract: An operating apparatus 1 of the present invention has a driven element 5, a frame 4 having a contacted element 51 and rotatably supporting the driven element 5, and an ultrasonic motor. The ultrasonic motor includes a vibrating element 6. The vibrating element 6 includes a first piezoelectric element 62 that undergoes extension and contraction by application of an AC voltage, a reinforcing plate 63 having a contact portion 66 and an arm portion 68, and a second piezoelectric element 64 that undergoes extension and contraction by application of an AC voltage. The first piezoelectric element 62, the reinforcing plate 63, and the second piezoelectric element 64 are laminated in this order. The vibrating element 6 is fixedly mounted on the driven element 5 in a state where the contact portion 66 abuts on the contacted element 51.