Support frame for a ladder
OwnerJohn W. Fountaininventor
Life of this patent
Estimating the term…
Abstract
A support kit supports a free-standing ladder. The kit includes a support frame with adjustable legs to keep the support frame level and a ladder-receiving bracket pivotally mounted on the frame about an axis extending laterally of the frame. A set of struts is pivoted to the frame spaced from the ladder-receiving bracket and extend to connect to the ladder-receiving bracket to form a structural triangle. Another set of struts is pivoted about a lateral axis spaced from the first set of struts and extends to a strut-receiving bracket mounted to the ladder above the ladder-receiving bracket to form a second structural triangle.
Claims5
A support kit for a ladder that has a pair of parallel side rails and spaced-apart rungs extending therebetween, the support kit comprising a support frame-having a longitudinal axis and a lateral axis, a ladder-receiving bracket pivotally mounted on the support frame for pivoting movements about a lateral axis relative to the support frame, the ladder-receiving bracket including front and rear wall members parallel to the lateral axis defining a space therebetween for receiving and securing the side rails of the ladder, at least a first support strut pivotally mounted about a lateral axis to the support frame and spaced, on the support frame, from the pivot axis of the ladder-receiving bracket, the first support strut having a free end to be connected to the ladder-receiving bracket for forming a structural triangle between the support frame, the ladder-receiving bracket, and the first support strut, in a vertical plane, wherein the ladder will be supported, with the side rails thereof inserted in the ladder-receiving bracket.
Dependencies are inferred from the claim text.