A mobility assistance apparatus includes first and second frames positioned on left and right sides of a user; a hinge arm mechanism coupled to the first and second frames; and a securing unit or a walking seat coupled to the frames to transfer at least a portion of the user's body weight from the legs and to transfer weight through the user's hip or pelvis to the first and second frame enabling the user to stand or work for an extended period without requiring the user's arms to hold the frame.

A mobility assistance apparatus includes first and second frames positioned on left and right sides of a user; a hinge arm mechanism coupled to the first and second frames; and a pivotable securing unit or a walking seat coupled to the frames to transfer at least a portion of the user's body weight from the legs and to transfer weight through the user's hip or pelvis to the first and second frame enabling the user to stand or work for an extended period without requiring the user's arms to hold the frame.

A mobility assistance apparatus includes first and second frames positioned on left and right sides of a user; a hinge arm mechanism coupled to the first and second frames; and a pivotable securing unit or a walking seat coupled to the frames to transfer at least a portion of the user's body weight from the legs and to transfer weight through the user's hip or pelvis to the first and second frame enabling the user to stand or work for an extended period without requiring the user's arms to hold the frame.

A wheelchair brake system comprises: a brake which is provided in a wheel of a wheelchair; and a brake actuation controller which connects with the brake and locks and releases the brake, wherein the brake is usually in a lock mode, but the brake actuation controller controls the brake to be switched over from the lock mode to a release mode if sensing that a user sits down on the wheelchair or the wheelchair is folded up.

A wheelchair brake system comprises: a brake which is provided in a wheel of a wheelchair; and a brake actuation controller which connects with the brake and locks and releases the brake, wherein the brake is usually in a lock mode, but the brake actuation controller controls the brake to be switched over from the lock mode to a release mode if sensing that a user sits down on the wheelchair or the wheelchair is folded up.

A foldable frame construction for mobility aids has a mounting frame, a pivotal arm, and an operating element. The mounting frame has a fixed end, a limiting end, a limiting hole formed through the mounting frame adjacent to the limiting end, and a through hole formed through the mounting frame between the fixed end and the limiting hole. The pivotal arm is rotatably connected to the mounting frame and has a positioning hole formed through the pivotal arm and selectively aligning with the through hole. The operating element is connected to the pivotal arm and the mounting frame to limit a position of the pivotal arm relative to the mounting frame, and has a fixing ring base securely connected to the pivotal arm around the positioning hole, an engaging bolt movably mounted in the fixing ring base, and a pull button connected to the engaging bolt.

The present disclosure describes devices and systems that can be integrated with a foldable, manual wheelchair to convert the wheelchair into a hybrid chair capable of both manual operation and motor-powered operation. A wheelchair powering device includes a motor that is operatively coupled to a roller member so that rotation of the motor shaft causes rotation of the roller member. The roller member may be engaged against a tire of the wheelchair so that rotation of the roller member causes rotation of the tire via friction between the roller member and tire.

The present disclosure describes devices and systems that can be integrated with a foldable, manual wheelchair to convert the wheelchair into a hybrid chair capable of both manual operation and motor-powered operation. A wheelchair powering device includes a motor that is operatively coupled to a roller member so that rotation of the motor shaft causes rotation of the roller member. The roller member may be engaged against a tire of the wheelchair so that rotation of the roller member causes rotation of the tire via friction between the roller member and tire.

A multi-purpose wheelchair is disclosed herein. The wheelchair comprises a tubular frame having two support members pivotally mounted and extending upwardly from the tubular frame. The wheelchair also comprises four legs pivotally mounted and extending downwardly from the tubular frame. The wheelchair comprises further four wheels arranged such that one wheel is provided with each of the legs. The wheelchair also comprises a split-seat with an opening supported on the base. Further, the wheelchair comprises a back support extending between the two support members.

A mobile object of the invention includes: a moving base including a front wheel and a rear wheel; a seat having a seating surface; and an armrest located outward of the seating surface in a width direction of the mobile object. The armrest includes: a supporting part supported on the moving base; a body part supported by the supporting part; and a grip protruding from the body part. The armrest is configured so as to be changeable between the position of use in which a user seated on the seating surface can hold the grip with the arm positioned upward of the armrest, and the lift-up position in which the grip is positioned upward of the position of use. The grip in the lift-up position is located outward in the width direction of the mobile object with respect to the grip in the position of use.