Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1989-05-26
1991-03-12
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310369, 310328, 310359, 310366, H01L 4108
Patent
active
049995367
ABSTRACT:
An actuator includes a pillar shaped ceramic piezoelectric body, a pair of electrodes formed on both base surfaces of the piezoelectric body, and a moving element made to contact with the side surface of the piezoelectric body in the longitudinal direction. A sheet provided in the longitudinal direction between two piezoelectric bodies is moved by driving the piezoelectric bodies. A roller is made to contact with the side of the piezoelectric body and a paper is pressed against the roller for feeding the paper. The side surface in the longitudinal direction of the foregoing piezoelectric body can alternatively be made to contact with the surface of a rail which guides the piezoelectric body movement.
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Japanese Journal of Applied Physics, vol. 27 (1988), Supp. 27-1, pp. 195-197, "Construction of Ultrasonic Motors and Their Application", Y. Tomikawa et al.
Japanese Journal of Applied Physics, vol. 27 (1988) Supp. 27-1, pp. 192-194, "Ultrasonic Motors Using Piezoelectric Ceramic Multi-Mode . . . ", T. Takano et al.
Japanese Journal of Applied Physics, vol. 24 (1985), Supp. 24-2, pp. 739-741, "A Piezoelectric Ultrasonic Motor", A. Kumada.
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