Landing ladder
OwnerBrian A. Mayinventor
Life of this patent
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Abstract
The present invention involves a selectively collapsible ladder which permits for adjusting the pitch of the steps between at least two pitches, one pitch being where the ladder collapsed for storage and another pitch whereby the steps are positioned for use by a user. The ladder includes a support structure comprising one or more support rails for extending between the ground and a loading or work surface or storage compartment. The steps are connected together by one or more links for effecting simultaneous movement of the steps. A stop mechanism is provided to releasably fix the step pitch relative to a support rail. The stop mechanism may include a ratchet mechanism that permits setting the pitch of the steps at one of several available pitch settings.
Claims16
A ladder with adjustable step pitch comprising
- a plurality of steps;
- a support structure having at least one back rail connected to the steps in a manner permitting pivoting movement of the steps relative to the back rail and a base for engaging the ground and spanning a distance of at least about one-half the width of a step, said support structure including a link associated with the steps to selectively effect simultaneous movement therebetween;
- and
- a stop mechanism operably associated with at least one of the link and the steps to selectively limit movement of the steps relative to the at least one back rail to fix the pitch of the steps at a desired pitch relative to the at least one back rail.
Dependencies are inferred from the claim text.