US 3,945,389 A · Foldable walker

Abstract

A collapsible walker in which gate legs are each pivotally mounted in bearings positioned at either end of a cross brace with the gate legs mounted in the bearings for rotation between an open position with the gate legs positioned generally transversely of the cross brace and a collapsed position with the gate legs folded against the cross brace. Corner braces are positioned adjacent to the bearings to provide rigid bracing support between the gate legs and the cross brace when the gate legs are in an open position, with the corner braces being movable to permit rotation of the gate legs to a collapsed position. Detent means are provided with tab release means therefor. The movement of the corner braces during movement of the gate legs may be determined by guide slots. Frictional means may be provided to resist opening or closing of movement of the gate legs. The bearings in which the gate legs are mounted may include a self-lubricating plastic sleeve with a tubular member on each of the gate legs mounted within the plastic sleeve.

Claims18

Dependent claims

A collapsable walker comprising:

a cross brace having a bearing at each of its extremities;
a pair of gate legs with one of said gate legs being pivotally mounted in each of said bearings for rotation between an open position with the gate legs positioned generally transversely of the cross brace and a collapsed position with the gate legs folded against the cross brace;
corner braces connected adjacent each of said bearings;
said corner braces each being connected to one of said gate legs and to said cross brace to provide rigid bracing support between the gate legs and the cross brace when the gate legs are in an open position, and
said corner braces being movable to permit rotation of the gate legs to a collapsed position.

2 more elements

A collapsable walker comprising:

a cross brace having a bearing at each of its extremities;
a pair of gate legs with one of said gate legs being pivotally mounted in each of said bearings for rotation between an open position with the gate legs positioned generally transversely of the cross brace and in a collapsed position with the gate legs folded against the cross brace;
corner braces positioned adjacent each of said bearings;
said corner braces each being connected to one of said gate legs and to said cross brace to provide rigid bracing support between the gate legs and the cross brace when the gate legs are in an open position;
said corner braces being movable to permit rotation of the gate legs to a collapsed position;
each of said corner braces being pivotally mounted on one of said gate legs;
each of said corner braces being movable with respect to said cross brace during movement of the gate legs to a collapsed position;
each of said corner braces being interlocked with said cross brace when said gate legs are in an open position;
detents supported by said cross brace in engagement with said corner braces;
apertures in said corner braces positioned to receive said detents when the gate legs are in an open position, and
means to move the detents out of the apertures in unlocking the corner braces from the cross brace for movement of the gate legs to a collapsed position.

8 more elements

Dependencies are inferred from the claim text.

Foldable walker

Life of this patent

Foldable walker

Life of this patent

Abstract

Claims18