Wheeled device to assist in carrying ladders
OwnerEric Calvin Bolinskiinventor
Life of this patent
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Abstract
A wheeled dolly for a ladder that connects to two adjacent rungs by means of hooks in the front that hook over one rung and a pincer action in the back actuated by the angle of the wheel assembly and the downward pressure exerted on the dolly by the weight of the ladder. Once engaged the ladder may easily be pulled or pushed with most of the weight resting on the dolly.
Claims8
An apparatus for removably attaching a ladder to a dolly or sled is configured to attach to two rungs or steps of said ladder, wherein the ladder and the apparatus are effectively prohibited from movement relative to each other once the dolly or sled is resting on a surface without the need to manually engage any securing or clamping mechanism.
An apparatus for attaching a ladder to a dolly or sled comprising a cradle configured such that placing two of the ladder's steps or rungs in the cradle while the dolly or sled is in an unfolded state causes the dolly or sled to remain unfolded, thereby enabling the dolly or sled to carry the ladder above the ground.
An apparatus for attaching a ladder to a dolly or sled comprising a cradle with hooks at one end for attaching to a first rung of the ladder and one or more pivoting levers, wherein the one or more pivoting levers automatically clamp a second rung of the ladder to a part of the cradle at a distance from said hooks when a portion of the weight of the ladder is placed on the apparatus while said first rung and said second rung are in a position to be engaged by the cradle.
Dependencies are inferred from the claim text.