Patent application number | Description | Published |
20080289670 | Walking Assistance Device - A walking assistancing device having leg links ( | 11-27-2008 |
20080318739 | Walking Assistance Device - A walking assistance device having a leg link connected to a load transfer portion via a first joint and to a foot attachment portion via a second joint, and having an intermediate third joint moving such that a distance between the first joint and the second joint is variable; a drive source for the third joint; and a battery for the drive source. When in an upstanding position, force in the forward-backward direction is prevented from acting on the load transfer portion to enhance stability. Also, a moment of inertia of the leg link is decreased to curtail a load applied to the leg of the user. The drive source and the battery are located at positions higher than the third joint, and when the user is in an upstanding position, a plane passing through the second joint lies between the drive source and the battery. | 12-25-2008 |
20090014042 | WALK ASSISTANCE DEVICE - A walk assistance device capable of transmitting a force generated by a leg link to a user's trunk via a load transfer portion, wherein the leg link includes an upper first link portion connected to the load transfer portion via a first joint portion, a lower second link portion connected to a foot attachment portion via a second joint portion, a middle third joint portion connecting the first link portion to the second link portion such that a distance between the first joint portion and the second joint portion is variable, and a driving source that drives the third joint portion. The moment of inertia around the first joint portion of the leg link is reduced to decrease a load on the user's leg in walking. The driving source is disposed above the third joint portion of the first link portion so that the center-of-gravity of the entire leg link is located above the third joint portion. In the case where the driving source includes an electric motor and a reduction gear, the electric motor is disposed above the reduction gear. | 01-15-2009 |
20100069799 | WALKING ASSIST DEVICE - The present invention provides a walking assist device including a seat member ( | 03-18-2010 |
20100076355 | WALKING ASSIST DEVICE - Provided is a walking assist device including a seat member having a holding portion to be held by a user, a leg link connected to the seat member, and a driving source capable of driving the leg link in a direction of pushing up the seat member. At least a part of the body weight of a user is supported by the leg link through the seat member. The walking assist device can be self-mounted easily by the user. When a holding detection unit detects that the holding portion is held by the user, the walking assist device performs a mounting assist control by driving the leg link in the direction of pushing up the seat member until a seating detection unit detects the contact of the seat member with the crotch of the user. | 03-25-2010 |
20100204621 | WALKING ASSIST DEVICE - A walking assist device having a load transmit portion, a leg link connected to the load transmit portion, and a driving source capable of driving the leg link in a direction to raise a seat member, so that at least a partial weight of a user may be supported by the leg link through the load transmit portion. An electric component to be used for controlling the driving source can be mounted on the walking assist device without degrading the compactness of the walking assist device. At least a part of the leg link is constituted of a cylindrical link member in which at least the electric component, such as a motor driver to be used for the control of the driving source, is partially housed. The walking assist device also includes a heat transfer member for absorbing the heat of the electric component by the cylindrical link member. The heat transfer member is thermally connected to a side plate of the cylindrical link member directed toward the side opposite to the leg of the user. | 08-12-2010 |
20110028874 | WALKING ASSIST DEVICE - An actuator ( | 02-03-2011 |
20110257567 | MOTION ASSIST DEVICE - Second joints ( | 10-20-2011 |
20110306907 | WALKING ASSIST DEVICE - In a walking assist device having leg links each connected to a support member through a first joint and having a first link and second link connected to the first link through a second joint, and actuators to be operated to displace the first and second links relative to each other to produce assist forces that assist part of user's body weight to assist the user to walk, it is configured such that a forward protruding amount of the second joint to be protruded with change of an angle between the first and second links about the second joint is changed. With this, it becomes possible to decrease the forward protruding amount to be protruded from the trunk of the user with change of the angle about the second joint, thereby decreasing the inertia force about the vertical axis, while mitigating the unnatural impression of the appearance. | 12-15-2011 |
Patent application number | Description | Published |
20090099494 | WALKING ASSISTANCE DEVICE - A walking assistance device has a leg link formed by connecting a first link member and a second link member through a third joint assembly. A force generated at the leg link by driving the third joint assembly is transmitted to the body of a user. The walking assistance device enables the user to deeply squat by making the third joint assembly highly bendable. The third joint assembly is has with a joint link member, a first joint which connects the joint link member and a first link member, and a second joint which connects the joint link member and the second link member. The walking assistance device is further equipped with a drive source which imparts a torque in a stretching direction to the first joint, and an elastic member which elastically holds the second joint in a predetermined stretched state until predetermined value or more acts thereon. | 04-16-2009 |
20090292232 | WALKING ASSIST DEVICE - Provided is a walking assist device including a seat member, a leg link having a joint portion, and a driving source for the joint portion. The walking assist device allows a user to rest by sitting on the seat member. Accordingly, the walking assist device further includes a lock mechanism disposed in the joint portion and an operation unit for the lock mechanism. When the operation unit is switched on, the driving source is controlled to increase an up-pushing force on the seat member. A variation rate on the up-pushing force is increased with time to a given value where the lock mechanism is initiated. | 11-26-2009 |
20100113986 | WALKING ASSIST APPARATUS - In a walking assist apparatus having a support member supporting an user, a pair of shoe units accommodating the user's feet, a pair of leg links each having a first link connected to the support member and a second link connected to each shoe unit, a pair of actuators each connected to the first and second links, a controller controlling operation of the actuators and a battery and assists walking of the user by producing relative movement between the first and second links, there are equipped with a primary coil installed in a floor on which the user walks on, a secondary coil installed in one of the shoe units and is supplied with non-contact supply of power from the primary coil, and a charging circuit charging the battery with rectified direct current output. | 05-06-2010 |
20100114332 | ANKLE JOINT STRUCTURE OF WALKING ASSISTANCE DEVICE - An ankle joint structure of a walking assistance device is capable of protecting a user from feeling uncomfortable by properly following the foot motions of the user. An ankle joint has a turn shaft member enabling a ground contact assembly to turn relative to a leg link, a lateral rotation shaft member enabling the ground contact assembly to laterally rotate relative to the leg link, and a longitudinal rotation shaft member enabling the ground contact assembly to longitudinally rotate relative to the leg link. The turn shaft member is connected to the leg link, the longitudinal rotation shaft member is connected to the ground contact assembly, and the lateral rotation shaft member is disposed between the turn shaft member and the longitudinal rotation shaft member. | 05-06-2010 |
20100121233 | WALKING ASSISTANCE DEVICE - A walking assistance device having an ankle joint limited in a swingable range in a rolling direction, enabling a user to open his/her legs apart more easily. The walking assistance device includes a seating member | 05-13-2010 |