Other

Safer Automatic Wheelchair Wheel Locks Inc.

Grady A Dugas

Don S Norton

Robert E Singletary

Automatic locking systems for wheelchairs have a locking hub for attachment to a main wheel of the wheelchair, and a lock pin which is reciprocally rectilinearly moveable between locked and unlocked conditions with the lock hub. A rotary actuator is operatively coupled to the lock pin and is rotatable between normal and active positions which responsively causes the lock pin to move rectilinearly between its unlocked and locked positions, respectively. A pivotal actuator lever is provided having one end positionable in close proximity to a seat of the wheelchair. The actuator lever is thus mounted for pivotal movements between raised and lowered conditions relative to the wheelchair seat. A flexible actuator cable connects a proximal end of the actuator lever and the rotary actuator. In operation, therefore, pivotal movement of the distal end of said actuator lever between its raised and lowered conditions responsively causes the actuator cable to rotate the rotary actuator between its normal and active conditions, respectively. As a result, the lock pin is caused to move to its locked position with the lock hub to thereby lock the main wheel of the wheelchair and prevent its rolling movement across the floor surface.

Automatic locking system for wheelchairs

An automatic braking wheelchair having an automatic braking assembly which automatically locks one or both wheels of a wheelchair when the patient attempts to rise. The automatic braking assembly includes a movable seat on which a patient sits, a support assembly for supporting the movable seat, the support assembly having two axles connected thereto, each of the axles having a rotatable hub connected thereto, each of the hubs having a drive wheel rigidly connected thereto, the movable seat being slidably connected to the support assembly, at least one spring connected to the support assembly and to the movable seat for moving the movable seat upward when the patient is not sitting in the movable seat, a locking gear rigidly connected to each of the two hubs, the locking gear having a plurality of teeth thereon, a locking gear receiver rigidly connected to the movable seat, the locking gear receiver having a cavity therein for receipt of the teeth of the locking gear to selectively lock the hub and said drive wheel in a stationary position.

Automatic braking wheelchair

An automatic braking wheelchair having an automatic braking assembly which automatically locks one or both wheels of a wheelchair when the patient attempts to rise. The automatic braking assembly includes a movable seat, a locking bar connected to the movable seat having a cavity therein for receipt of the axle, and a locking member rigidly connected to the hub of the wheel which is received in the cavity of the locking bar to selectively lock the hub and wheel in a stationary position.

Growing community of inventors

Marion, LA, United States of America

Grady A Dugas