Ultrasonic driving motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 27, 2001
Grant Date -
N/A
app pub date -
Feb 22, 2000
filing date -
Feb 26, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fixing member is inserted under pressure into a central hole of an ultrasonic vibrator, a case and a center axle are fixed by a screw, a bearing is fixed on an end portion of the center axle, a rotor is mounted to rotate by the bearing, a connection member is fixed to the rotor, projections are formed on the edge of a disk of the connection member, spaces are formed between the projections respectively, a contact member is composed by inserting ends of divided parts into spaces of the connection member, and a ring-like elastic member is mounted on the contact member which is pressed on the ultrasonic vibrator.
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