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.

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.

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.

Abstract: A power assist suit includes a harness worn at least around hips of a wearer, an assist unit, a power unit, and a bearing roller. The assist unit includes an arm and a thigh-worn part. A rail is provided at a part of the arm in a longitudinal direction. The rail includes channel-shaped parts extending along the longitudinal direction. The thigh-worn part is connected to sliding movable parts or integrated with at least a portion of the sliding movable parts. The bearing roller is disposed between each of the channel-shaped parts in the rail and each of inner wall surfaces of the sliding movable parts facing the respective channel-shaped parts.

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.

Abstract: An assist device includes a first body-worn unit, a second body-worn unit, a belt body, an actuator, and a controller. The actuator includes a pulley and a motor that causes the pulley to reel and unreel a part of the belt body. The controller is configured to execute a mode switching process of switching a control mode of the motor to one a restriction mode in which a maximum rotation speed of the motor is restricted to a predetermined rotation speed and a normal mode in which the motor is operated within a rotation speed range higher than the predetermined rotation speed.

Abstract: An assist device includes a first harness, a second harness, and a grip portion. The first harness is configured to be fitted to at least one of a shoulder region and a breast region of a user. The second harness is configured to be fitted to a leg region or a waist region of the user. The grip portion is to be held by a person other than the user, the grip portion being attached to at least one of the first harness and the second harness.

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.

Abstract: An assist device includes a first harness, a second harness, a belt body and an actuator. The first harness is configured to be fitted to at least one of a shoulder region and a breast region of a user. The second harness is configured to be fitted to left and right leg regions, respectively, or a waist region, of the user. The belt body provided so as to extend to the first harness and to the second harness along a back side of the user. The actuator is provided in the first harness or the second harness and configured to wind and unwind a part of the belt body.

Abstract: An assist device includes a first harness, a second harness, a belt body, a mechanical unit and an attachment-detachment portion. The first harness is configured to be fitted to at least one of a shoulder region and a breast region of a user. The second harness is configured to be fitted to a leg region or a waist region of the user. The belt body is provided so as to extend to the first harness and to the second harness along a back side of the user. The mechanical unit includes an actuator provided in one harness of the first harness and the second harness and configured to wind and unwind a part of the belt body. The attachment-detachment portion is provided in the harness and the mechanical unit and is configured to detachably attach the mechanical unit to the harness.

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.

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.

Abstract: A power assist suit includes a harness worn at least around hips of a wearer, an assist unit, a power unit, and a bearing roller. The assist unit includes an arm and a thigh-worn part. A rail is provided at a part of the arm in a longitudinal direction. The rail includes channel-shaped parts extending along the longitudinal direction. The thigh-worn part is connected to sliding movable parts or integrated with at least a portion of the sliding movable parts. The bearing roller is disposed between each of the channel-shaped parts in the rail and each of inner wall surfaces of the sliding movable parts facing the respective channel-shaped parts.

Abstract: A swinging joint device includes a driving shaft member; a first output portion that swings about a driving axis serving as an axis of the driving shaft member; an elastic body that generates an urging torque corresponding to a first swinging angle that is a swinging angle of the first output portion; an apparent rigidity variable portion that varies apparent rigidity of the elastic body seen from the first output portion; a first angle detection portion that detects the first swinging angle; and a control portion that controls the apparent rigidity variable portion according to the first swinging angle detected by the first angle detection portion to adjust the apparent rigidity of the elastic body seen from the first output portion.