Title:
ULTRASONIC MOTOR, ROBOT ARM, AND MESH ROBOT
Document Type and Number:
Japanese Patent JP2019009880
Kind Code:
A
Abstract:
To provide an ultrasonic motor capable of adjusting characteristics such as output torque and speed of rotation, a robot arm carrying the ultrasonic motor, and a mesh robot carrying the ultrasonic motor.SOLUTION: An ultrasonic motor 100 includes: a rotor shaft 3 having a first shaft 31 and a second shaft; an elastic member for applying force in a direction in which a first opening that is an opening at a base end side of the first shaft 31 and a second opening that is an opening at a base end side of the second shaft are made to approach; a stator 1 having an open hole through which the rotor shaft penetrates; and an ultrasonic wave generation element 2. The first and the second openings are provided while being opposed. An internal peripheral surface of the stator 1 is subjected to taper processing. The first shaft includes a first engaging section subjected to taper-shape processing in an outer periphery at a base end side. The second shaft includes a second engaging section subjected to taper-shape processing in an outer periphery at a base end side. An inner peripheral surface of the stator 1 engages with the first and the second engaging sections.SELECTED DRAWING: Figure 1
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Inventors:
TOYAMA SHIGEKI
Application Number:
JP2017122494A
Publication Date:
January 17, 2019
Filing Date:
June 22, 2017
Export Citation:
Assignee:
UNIV TOKYO AGRICULTURE & TECHNOLOGY
International Classes:
H02N2/12; B25J19/00
Domestic Patent References:
| JP2009124804A | 2009-06-04 | |||
| JP2009261494A | 2009-11-12 | |||
| JP2016077056A | 2016-05-12 | |||
| JP2016087761A | 2016-05-23 | |||
| JP2016092936A | 2016-05-23 |
Foreign References:
| WO2015079716A1 | 2015-06-04 | |||
| WO2015064321A1 | 2015-05-07 |
Attorney, Agent or Firm:
Sumio Tanai
Shiro Suzuki
Ryu Miyamoto
Shiro Suzuki
Ryu Miyamoto