Invention Grant
- Patent Title: Ultrasonic motor mechanism
- Patent Title (中): 超声波电动机构
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Application No.: US13020303Application Date: 2011-02-03
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Publication No.: US08390171B2Publication Date: 2013-03-05
- Inventor: Koichi Kudo
- Applicant: Koichi Kudo
- Applicant Address: JP Tokyo
- Assignee: Olympus Corporation
- Current Assignee: Olympus Corporation
- Current Assignee Address: JP Tokyo
- Agency: Scully Scott Murphy & Presser, PC
- Priority: JP2010-026029 20100209
- Main IPC: H02N2/00
- IPC: H02N2/00

Abstract:
A linear drive ultrasonic motor includes at least an ultrasonic vibrator having a piezoelectric element, a driven member which is driven relatively by a frictional force between the ultrasonic vibrator and the driven member, a plurality of coupling members which are coupled with the driven member, a frame body which is coupled with the coupling member, a bias applying member which applies a bias to the driven member by the ultrasonic vibrator, a base member which movably supports the driven member, and a rolling member having a spherical shape which movably supports the driven member with respect to the base member. The plurality of coupling members include a positioning portion which determines a position of the respective frame body, and which have a shape which enables to fix by a point contact, sandwiching the frame body.
Public/Granted literature
- US20110193450A1 ULTRASONIC MOTOR MECHANISM Public/Granted day:2011-08-11
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