公开(公告)号：US20190262217A1

公开(公告)日：2019-08-29

申请号：US16285303

申请日：2019-02-26

Applicant: JTEKT CORPORATION

Inventor： Manabu KANAYA ,  Yoshiyuki SHIBATA ,  Shinji TAKEUCHI ,  Genki MURATA

IPC: A61H3/04 ,  B62B5/06

Abstract: A walking assist device has a frame, a plurality of wheels, drive units, a battery, and a drive control unit that controls the drive units. The walking assist device also has: a pair of right and left movable handles that are grasped by a user and movable back and forth with respect to the frame in accordance with arm swing performed during walk of the user; handle guide units provided on the frame to guide the movable handles in a movable range that matches the arm swing performed during walk of the user; and a grasp portion state detection unit that detects the state of the movable handles. The drive control unit controls the travel speed of the walking assist device by controlling the drive units on the basis of the state of the movable handles which is detected using the grasp portion state detection unit.

公开(公告)号：US20240217093A1

公开(公告)日：2024-07-04

申请号：US18562912

申请日：2021-12-27

Applicant: JTEKT CORPORATION

Inventor： Yoshinobu KATO ,  Genki MURATA ,  Ai HIGUCHI ,  Atsushi ANDO

IPC: B25J9/00 ,  A61H3/00 ,  B25J9/16 ,  B25J13/08

CPC classification number: B25J9/0006 ,  A61H3/00 ,  B25J9/163 ,  B25J9/1638 ,  B25J13/088

Abstract: An assist device includes: a first wearing tool mounted to at least a waist portion of a user, an assist arm disposed along a thigh portion of the user and being turnable with respect to the first wearing tool; a motor that generates torque for turning the assist arm; a second wearing tool provided on the assist arm and mounted to the thigh portion; an acceleration sensor provided on the first wearing tool; a rotation detector that detects a turning state of the assist arm; and a control device that controls the motor. The control device includes a processing portion that executes an estimation process of obtaining an estimated weight of a load to be lifted by the user based on an output of the acceleration sensor and an output of the rotation detector, and a control process of controlling the motor based on the estimated weight.

公开(公告)号：US20200230015A1

公开(公告)日：2020-07-23

申请号：US16743434

申请日：2020-01-15

Applicant: JTEKT CORPORATION

Inventor： Yoshiyuki SHIBATA ,  Manabu KANAYA ,  Yuki MATSUOKA ,  Genki MURATA

IPC: A61H3/04

Abstract: A walking assist device includes a frame; wheels including at least one driving wheel; at least one traveling drive unit; a battery; right and left handles; handle condition detection units; an electronic control unit configured to control the at least one traveling drive unit based on the conditions of the handles that are detected based on detection signals from the respective handle condition detection units; right and left shafts fixed to the respective handles and extending in a frame front-rear direction; and right and left tubes that are attached to the frame so as to extend in the frame front-rear direction, the tubes being configured to house the respective shafts such that the shafts are movable in the frame front-rear direction.