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1.发明申请公开(公告)号：US20180323729A1
公开(公告)日：2018-11-08
申请号：US15967875
申请日：2018-05-01
发明人： Yutaka ARAKAWA , Tomohisa IWAZAKI
CPC分类号： H02N2/103 , B25J9/0009 , B41J2/14201 , B65G23/22 , G03B21/142 , H01L21/67706 , H02N2/0055
摘要： A first member, a second member, a bearing that rotatably supports the second member about a rotation axis relative to the first member, a driven member placed on the first member, and a plurality of piezoelectric actuators that transmit driving forces for rotating the second member about the rotation axis relative to the first member to the driven member are provided, and the piezoelectric actuators are supported by the second member while being pressed against the first member or the member fixed thereto, and, as seen from a direction along the rotation axis, a center of pressing forces from the plurality of piezoelectric actuators to the driven member is located inside of an outer circumferential part of the bearing.
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2.发明申请PIEZOELECTRIC DRIVE DEVICE, ROBOT, AND METHOD FOR DRIVING PIEZOELECTRIC DRIVE DEVICE 审中-公开压电驱动装置，机器人和驱动压电驱动装置的方法公开(公告)号：US20170008167A1
公开(公告)日：2017-01-12
申请号：US15204200
申请日：2016-07-07
发明人： Yutaka ARAKAWA , Tomohisa IWAZAKI
摘要： A piezoelectric drive device includes: a piezoelectric vibrating portion including a vibrating body, a piezoelectric element disposed on at least one surface of the vibrating body, and a support portion supporting the vibrating body; an elastic member pressing the vibrating body against a driven member; and a heat conducting member disposed so as to be capable of changing a mutual positional relationship with the elastic member while maintaining a surface-to-surface contact state therewith.
摘要翻译： 一种压电驱动装置，包括：压电振动部，包括振动体，设置在所述振动体的至少一个表面上的压电元件和支撑所述振动体的支撑部; 将所述振动体压靠在被驱动构件上的弹性构件; 以及导热构件，其设置成能够在保持与所述弹性构件的表面接触状态的同时改变与所述弹性构件的相互位置关系。
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公开(公告)号：US20230264347A1
公开(公告)日：2023-08-24
申请号：US18111908
申请日：2023-02-21
发明人： Akiko KABUKI , Tomohisa IWAZAKI
IPC分类号： B25J9/12
CPC分类号： B25J9/12
摘要： A drive device includes a vibrator, and a rotor as a driven unit subjected to a drive force from the vibrator and relatively rotating or moving to the vibrator, wherein the rotor as the driven unit has a base portion and an elastic portion coupled to the base portion, and the base portion is located between the vibrator and the elastic portion.
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公开(公告)号：US20220255470A1
公开(公告)日：2022-08-11
申请号：US17665611
申请日：2022-02-07
发明人： Tomohisa IWAZAKI
摘要： A piezoelectric motor includes a driven member rotating around a rotation axis, and a plurality of piezoelectric vibrators rotating the driven member by transmitting drive forces to the driven member. The plurality of piezoelectric vibrators includes a first piezoelectric vibrator and a second piezoelectric vibrator at a larger distance from the rotation axis than the first piezoelectric vibrator. The control method for the driven member includes, for acceleration of the driven member, rotating the driven member by the drive force of the second piezoelectric vibrator when a rotation velocity of the driven member is lower than a first velocity, and rotating the driven member by the drive force of the first piezoelectric vibrator when the rotation velocity of the driven member is equal to or higher than the first velocity.
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公开(公告)号：US20200272035A1
公开(公告)日：2020-08-27
申请号：US16798542
申请日：2020-02-24
发明人： Akira NEMURA , Yutaka ARAKAWA , Tomohisa IWAZAKI
摘要： An adjusting mechanism for adjusting a position of a display panel includes a first plate including a placing portion on which the display panel is placed, a second plate on which the first plate is placed, the second plate disposed on the opposite side of a display panel side with respect to the first plate, a third plate on which the second plate is placed, the third plate disposed on an opposite side of a first plate side with respect to the second plate, a first position adjusting actuator configured to move the first plate in a direction along a Z axis, a θx direction, and a θy direction, a second position adjusting actuator configured to move the second plate in a direction along an X axis and a θz direction, and a third position adjusting actuator configured to move the third plate in a direction along the Y axis.
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公开(公告)号：US20210226560A1
公开(公告)日：2021-07-22
申请号：US17152815
申请日：2021-01-20
发明人： Yudai OKAMAE , Tomohisa IWAZAKI , Yutaka ARAKAWA
摘要： A piezoelectric motor includes a piezoelectric actuator, a holding member that holds the piezoelectric actuator, a housing in which the piezoelectric actuator and the holding member are placed, a first positioning pin that positions the holding member and the housing, and a first fixing part that fixes the first positioning pin. In the piezoelectric motor, the first positioning pin is fixed to one of the holding member and the housing, and a first hole portion in which the first positioning pin is placed is provided in the other of the holding member and the housing. The first fixing part fixes relative positions of the first hole portion and the first positioning pin.
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公开(公告)号：US20200338757A1
公开(公告)日：2020-10-29
申请号：US16855008
申请日：2020-04-22
发明人： Tomohisa IWAZAKI , Yutaka ARAKAWA
摘要： A horizontal articulated robot includes a base, a first arm configured to turn around a turning axis that passes through the base, a second arm provided in the first arm and configured to slide with respect to the first arm to extend and contract, and a driving source configured to generate a driving force for causing the second arm to slide with respect to the first arm. When the second arm contracted, the second arm overlaps the base in a plan view from an axial direction of the turning axis. The driving source is provided in the first arm. The driving source deviates from the base in the plan view.
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公开(公告)号：US20190149066A1
公开(公告)日：2019-05-16
申请号：US16188987
申请日：2018-11-13
发明人： Yutaka ARAKAWA , Tomohisa IWAZAKI
摘要： A piezoelectric driving device includes a supporting section, a first moving section movable in a first direction relative to the supporting section, a second moving section movable in a second direction relative to the first moving section, a first driving section configured to drive a first piezoelectric actuator to move the first moving section relative to the supporting section and stop the first piezoelectric actuator to hold the first moving section on the supporting section, and a second driving section configured to drive a second piezoelectric actuator to move the second moving section relative to the first moving section and stop the second piezoelectric actuator to hold the second moving section on the first moving section. A first holding force for holding the first moving section on the supporting section and a second holding force for holding the second moving section on the first moving section are different from each other.
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公开(公告)号：US20170229634A1
公开(公告)日：2017-08-10
申请号：US15497711
申请日：2017-04-26
发明人： Tomohisa IWAZAKI , Akio KONISHI , Kiichi KAJINO , Koichi KAMIJO , Osamu MIYAZAWA , Yutaka ARAKAWA , Daisuke YAMADA
CPC分类号： H01L41/0475 , B25J9/12 , B25J17/00 , H01L41/042 , H01L41/0472 , H01L41/09 , H01L41/0913 , H02N2/004 , H02N2/0085 , H02N2/103 , H02N2/14 , H02P25/032 , H02P25/16 , H02P25/32 , Y10S901/28
摘要： A piezoelectric driving device includes a vibrating plate, and a piezoelectric vibrating body including a substrate, and piezoelectric elements provided on the substrate. The piezoelectric element includes a first electrode, a second electrode, and a piezoelectric body, and the first electrode, the piezoelectric body, and the second electrode are laminated in this order on the substrate. The piezoelectric vibrating body is installed on the vibrating plate so that the piezoelectric element is interposed between the substrate and the vibrating plate. A wiring pattern including a first wiring corresponding to the first electrode and a second wiring corresponding to the second electrode is formed on the vibrating plate, the first electrode and the first wiring are connected to each other through a first laminated conducting portion, and the second electrode and the second wiring are connected to each other through a second laminated conducting portion.
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公开(公告)号：US20150342818A1
公开(公告)日：2015-12-03
申请号：US14723861
申请日：2015-05-28
发明人： Tomo IKEBE , Yutaka ARAKAWA , Tomohisa IWAZAKI
IPC分类号： A61H1/02
CPC分类号： A61H1/0288 , A61H23/0245 , A61H2201/123 , A61H2201/1238 , A61H2201/165 , A61H2201/5061
摘要： A driving device includes a wearable mechanism that is worn on a wearing part, an actuator that drives the wearable mechanism, and first and second force sensors that are provided on the wearable mechanism and detect a force. The first and second force sensors are provided at positions at which a first detected value obtained from the first force sensor and a second detected value obtained from the second force sensor are changed in response to a motion of the wearing part. When a difference between the first and second detected values is less than a pre-decided first threshold value and the first or second detected value is greater than a pre-decided second threshold value, the actuator drives the wearable mechanism so that the second detected value is constant.
摘要翻译： 驱动装置包括佩戴在佩戴部件上的穿戴机构，驱动可穿戴机构的致动器以及设置在可穿戴机构上并检测力的第一和第二力传感器。 第一和第二力传感器设置在响应于磨损部的运动而改变从第一力传感器获得的第一检测值和从第二力传感器获得的第二检测值的位置。 当第一和第二检测值之间的差小于预先确定的第一阈值并且第一或第二检测值大于预先确定的第二阈值时，致动器驱动可穿戴机构使得第二检测值 是恒定的
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