Safety rolling invalid walker
AssigneeWhite Cap Enterprises Corporation
InventorsFritz A. Deutsch, Dwight L. Mayo, Jr.
Life of this patent
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Abstract
A rolling invalid walker has normally locked wheels and one or more hand controls for disengaging the locks to permit unlimited rolling. A preferred embodiment comprises a walker frame with four legs and wheels. The two front wheels are normally locked, and a pair of hand controls are provided for disengaging the locks with minimal pressure. The hand controls are coupled together by a horizontal tie rod so that the wheels can be unlocked by either or both controls and so that emergency pressure on either control will lock the wheels.
Claims7
A walker comprising a rigid frame provided with supporting wheels, said frame comprising spaced, parallel, horizontally positioned handrails between which a patient can stand with his hands resting on the handrails to support his weight, wheel locking means applicable to each of two wheels, hand levers having first positions relative to each of the handrails such as to be within the grasp of the hands and fingers when gripping the handrails, kinematic means connecting the hand levers to the wheel locking means and spring means biasing the wheel locking means to locking position when the hand levers occupy said first position, characterized in that the hand levers, when moved from said first position toward the handrails by contraction of the hands and fingers on the handrails, release the wheel locking means so as to permit the wheels to roll for free wheeling of the walker but, when moved a further distance in the same direction toward the handrails, by tightening of the grasp upon the hand levers, reapplies the wheel locking means to the wheels so as to immobilize the walker.
Dependencies are inferred from the claim text.