Ultrasonic linear motor

Details Ultrasonic linear motor Ultrasonic linear motor

1997-02-03

1999-11-09

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310 12, 310328, H02N 200

Patent

active

059820756

ABSTRACT:
An ultrasonic linear motor of the present invention comprises an ultrasonic vibrator which has an electromechanical energy converting element and presses a driven member to produce a driving force for driving the driven member, a pair of pressing members which are arranged so as to sandwich the vibrator and exert a pressing force on the driven member at the positions corresponding to nodes of a standing wave on the vibrator, a support member which pivotally supports the pressing members, and an elastic member which exerts simultaneously on the pair of pressing members a deflecting force serving as a pressing force to the driven member.

REFERENCES:
patent: 5105117 (1992-04-01), Yamaguchi
patent: 5416375 (1995-05-01), Funakubo et al.
patent: 5726520 (1998-03-01), Grahn

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