VIBRATION WAVE MOTOR AND DRIVE DEVICE
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United States of America
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May 21, 2019
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May 21, 2019
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Abstract
Provided is a vibration wave motor, including: a vibrator including a piezoelectric element and a vibrating plate; a friction member, which includes a friction-contact surface to be brought into contact with the vibrator, and is configured to perform relative movement with respect to the vibrator by vibration generated by the vibrator; and a guide mechanism, which includes a first guide member, a second guide member, and a rolling member arranged between the first guide member and the second guide member, and is configured to guide the relative movement, wherein the first guide member includes a groove portion formed of a first surface and a second surface to be brought into contact with the rolling member, and wherein the first surface is longer than the second surface in a direction of the relative movement.
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