Linear drive ultrasonic motor
AssigneeOlympus Corporation
InventorHiroyuki Takizawa
Life of this patent
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Abstract
A linear drive ultrasonic motor includes at least an ultrasonic vibrator having a piezoelectric element, a driven member which is driven by a frictional force between the driven member and the ultrasonic vibrator, a pressing member which presses the ultrasonic vibrator such that a frictional force is generated between the ultrasonic vibrator and the driven member, a case member which accommodates the ultrasonic vibrator, the pressing member, and the driven member, and a coupling member which is coupled with the driven member at an interior of the case member. The case member includes an opening portion for allowing a part of the coupling member to pass through.
Claims4
A linear drive ultrasonic motor comprising at least:
- an ultrasonic vibrator having a piezoelectric element;
- a driven member which is driven by a frictional force between the driven member and the ultrasonic vibrator;
- a pressing member which presses the ultrasonic vibrator such that a frictional force is generated between the ultrasonic vibrator and the driven member;
- a case member which accommodates the ultrasonic vibrator, the pressing member, and the driven member;
- and
- a coupling member which is coupled with the driven member at an interior of the case member, wherein
- the case member includes an opening portion for allowing a part of the coupling member to pass through.
Dependencies are inferred from the claim text.