公开(公告)号：US11633318B2

公开(公告)日：2023-04-25

申请号：US17326874

申请日：2021-05-21

Applicant: JTEKT CORPORATION

Inventor： Hiromichi Ohta ,  Kazuyoshi Ohtsubo ,  Yoshitaka Yoshimi ,  Tomoki Arai

IPC: A61H1/02

Abstract: An assist device includes a first body-worn unit that is worn on at least shoulders or a chest of a user; a second body-worn unit that is worn on each of right and left legs or a waist of the user; a belt body provided to extend along a back side of the user, from the first body-worn unit to the second body-worn unit; an actuator provided in the first body-worn unit or the second body-worn unit and allows a part of the belt body to be reeled and unreeled; a battery configured to supply electricity to the actuator; and a controller configured to control the actuator. When a remaining charge level of the battery has decreased to a predetermined set value, the controller executes a vibrating motion process of causing the actuator to perform a vibrating motion of intermittently repeating reeling of a minute amount of the belt body.

公开(公告)号：US12090653B2

公开(公告)日：2024-09-17

申请号：US17015260

申请日：2020-09-09

Applicant: JTEKT CORPORATION

Inventor： Yoshitaka Yoshimi ,  Kazuyoshi Ohtsubo ,  Tomoki Arai ,  Hiromichi Ohta

IPC: B25J9/00 ,  A61H1/02 ,  A61H3/00 ,  B25J9/10 ,  B25J9/12

CPC classification number: B25J9/0006 ,  A61H1/0262 ,  A61H3/00 ,  B25J9/102 ,  B25J9/104 ,  B25J9/12 ,  A61H2003/007 ,  A61H2201/1215 ,  A61H2201/149 ,  A61H2201/1652

Abstract: An assist device includes a first harness, a second harness, a belt body, an actuator and a controller. The controller is configured to perform operation control of the actuator. The controller is configured to, upon operation of the actuator being started in a state in which the first harness and the second harness is fitted to the user, perform winding of the belt body with a first winding force, and is configured to, upon the winding of the belt body being completed, change the winding force of the actuator to a second winding force that is smaller than the first winding force.

公开(公告)号：US11839580B2

公开(公告)日：2023-12-12

申请号：US17084707

申请日：2020-10-30

Applicant: JTEKT CORPORATION

Inventor： Hiromichi Ohta ,  Kazuyoshi Ohtsubo ,  Tomoki Arai ,  Yoshitaka Yoshimi

IPC: A61H1/02

CPC classification number: A61H1/0292 ,  A61H2201/1215 ,  A61H2201/149 ,  A61H2201/163 ,  A61H2201/1616 ,  A61H2201/1621 ,  A61H2201/1642 ,  A61H2201/1652 ,  A61H2201/5064

Abstract: An assist device includes a first worn component worn on at least one of a shoulder and a chest of a user, a second worn component worn on one of a hip and a pair of right and left legs of the user, a belt member provided along a back side of the user over the first worn component and the second worn component, an actuator provided on one of the first worn component and the second worn component, a position detection unit configured to obtain a position parameter indicating a position of the user, and a controller configured to obtain a required output in a direction to wind up the belt member from the actuator based on the position parameter and configured to control operation of the actuator.

公开(公告)号：US11771612B2

公开(公告)日：2023-10-03

申请号：US17019815

申请日：2020-09-14

Applicant: JTEKT CORPORATION

Inventor： Yoshitaka Yoshimi ,  Kazuyoshi Ohtsubo ,  Tomoki Arai ,  Hiromichi Ohta

IPC: A61H1/02

CPC classification number: A61H1/0229 ,  A61H2201/018 ,  A61H2201/164 ,  A61H2201/1619 ,  A61H2201/1652 ,  A61H2201/5058 ,  A61H2230/62

Abstract: An assist device includes: a first harness to be fitted to at least one of a shoulder region and a breast region of a user; a second harness configured to be fitted to one of a leg region and a waist region, of the user; a belt body provided so as to extend to the first harness and to the second harness along a back side of the user; an actuator provided in one of the first harness and the second harness; and a controller performs operation control of the actuator. The actuator winds a part of the belt body and unwinds the part of the belt body. The controller performs the operation control of the actuator based on a posture change of the user.

公开(公告)号：US10710237B2

公开(公告)日：2020-07-14

申请号：US15920502

申请日：2018-03-14

Applicant: JTEKT CORPORATION

Inventor： Toshiki Kumeno ,  Hiromichi Ohta ,  Yoshitaka Yoshimi

IPC: B25J9/00 ,  A63B21/00 ,  A61H3/00 ,  A61H1/02 ,  G06F1/16 ,  B25J9/16 ,  B25J13/08

Abstract: An assist device includes a body wearing unit and an actuator unit. The actuator unit includes an output link configured to pivot about a joint of an assist target body part and to be attached to the assist target body part; an actuator including an output shaft configured to generate an assist torque via the output link; a torque determination unit configured to determine a combined torque obtained by combining a user torque and the assist torque from the output shaft, the user torque being input from the output link when the user causes the assist target body part to pivot; a correction unit configured to calculate a correction amount for the determined combined torque; and a pivot angle control unit configured to control a pivot angle of the output shaft based on the determined combined torque and the calculated correction amount.

公开(公告)号：US10386207B2

公开(公告)日：2019-08-20

申请号：US15431151

申请日：2017-02-13

Applicant: JTEKT CORPORATION

Inventor： Yoshitaka Yoshimi ,  Hiromichi Ohta

IPC: A61H3/00 ,  G01D5/04 ,  G01D5/248

Abstract: A frequency detector includes an oscillation related information output portion to which moving body position related information and a correction parameter are input, and which outputs a frequency adjustment parameter and estimated moving body position related information; a frequency estimating portion to which the frequency adjustment parameter is input, and which outputs an estimated frequency; and an adjusting portion to which the moving body position related information, the estimated moving body position related information, and the estimated frequency are input, and which outputs the correction parameter.