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US 5,349,977 AGranted
Adjustable walker
OwnerMaurice S. Woodinventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to invalid walkers which are designed to aid the handicapped. Specifically, the present invention relates to an attachment to an existing walker, or a modified existing walker which is hand operated and designed to be made adjustable to accommodate inclines or stairs. This walking aid will enable persons using it to ascend and descend stairs and inclines much easier.
Claims18
A walker comprising:
- a frame having a pair of hand grips formed thereon;
- a plurality of legs connected to said frame and extending downwardly therefrom, said plurality of legs comprising four legs, each of said legs positioned at a corner of said frame;
- a plurality of extensible leg portions slidably received by said plurality of legs and extending downwardly therefrom;
- and
- actuator means connected to said frame generally adjacent said hand grips, said actuator means interconnected to said legs and to said extensible leg portions for controlling a movement of said extensible leg portion with respect to said legs, said actuator means movable between a first position and a second position, said first position for causing said extensible leg portions to move freely with respect to said legs, said second position for causing said extensible leg portions to lock in position relative to said legs said actuator means comprising:
- a first actuator bar extending between said first pair of legs on one side of said frame;
- a second actuator means extending between said second pair of legs on another side of said frame, said first and second actuator bars positioned below said hand grips;
- and
- housing means interconnected to said first and second actuator bars and to said legs and to said extensible leg portions, said housing means for controlling the movement of said extensible leg portions with respect to said legs.
6 more elements
A leg attachment for a walker of the type having a plurality of hollow tubular legs, said leg attachment comprising:
- an extensible leg portion;
- a housing means extending around an exterior of said extensible leg portion;
- attachment means connected to said housing means for affixing said housing means to an exterior of said tubular leg;
- and
- actuator means interconnected to said housing means for controlling the movement of said extensible leg portion with respect to said housing means, said actuator means movable between a first position and a second position, said first position for causing said extensible leg portion to move freely, said second position for locking said extensible leg portion in a desired position, said housing means comprising:
- a cylindrical sleeve extending around said extensible leg portion;
- a ring member resiliently mounted within said cylindrical sleeve, said ring member having an open portion extending around an exterior surface of said extensible leg portion, said ring member connected to said actuator means, said actuator means causing a movement of said ring member so as to release said extensible leg portion for gravity-induced movement;
- and
- boot means for covering said housing means.
6 more elements
Dependencies are inferred from the claim text.