Attachable wheelchair assistive device that applies the self-energizing effect

摘要

The present invention relates to an electric assistive device and, more specifically, relates to an electric assistive device detachable in a manual wheelchair, which is easily detachable with a manual wheelchair without bending a body, can be converted into the manual wheelchair even though being attached to the manual wheelchair, and provides enough driving power and braking power with a self-energizing effect. To achieve this, according to the present invention, the electric assistive device comprises: a body; a handle provided in an end portion at one side of the body; a wheel operably connected to an end portion at the other side of the body, and provided with an in-wheel motor; a coupling unit to detachably connect the body to a manual wheelchair; and a bowlegged link connection unit of which an end portion at one side is connected to an end at the other side of the body, and another end at the other side assists operation of the wheel with a self-energizing method.