Ultrasonic motor and surveying instrument
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United States of America Patent
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Mar 20, 2018
Issued Date -
N/A
app pub date -
Jan 10, 2017
filing date -
Jan 18, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides an ultrasonic motor, which is an ultrasonic motor provided on a shaft end of a rotation shaft. An output shaft of the ultrasonic motor is connected to the rotation shaft, a stator is rotatably provided on the output shaft, a rotor is fixed to the rotation shaft, a vibration generating component for generating an ultrasonic vibration is provided on either one of the rotor or the stator. A whirl-stop unit is provided between the stator and a fixed side for supporting the rotation shaft: the whirl-stop unit has a joint holder provided on the fixed side and a connection element provided on the stator: the joint holder has a ball holder for pressing a metal ball to the connection element in a circumferential direction and a connection pin holding the connection element between the ball holder and the connection pin, spanning over the joint holder and capable of tilting.
First Claim
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International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- B06B:GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS I....
- H02N:ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G01C:MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING....
- G01S:RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMI....
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