A ladder includes a pair of generally curved side rails arranged in a spaced apart manner, a plurality of fixed rungs disposed between the side rails, a plurality of pairs of rung supports, and a plurality of hinged rungs. Each of the pairs of rung supports is horizontally aligned with each other and disposed on respective inner sides of the side rails. The rung supports are spaced apart from the fixed rungs along lengths of the side rails. Each rung support includes a flanged end portion having an aperture therein. Each hinged rung is associated with a respective pair of rung supports. Each hinged rung has a first end pivotally coupled to the flanged end portion of a first rung support in the respective pair of rung supports such that each hinged rung is pivotal between a secured position between the rung supports and a retracted position.


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    Titel :

    Ergonomic ladder


    Beteiligte:
    NGUYEN DAVID G (Autor:in) / HALILI FLORANTE M (Autor:in) / LEE BENJAMIN BOWEN (Autor:in) / WEBB JESSE A (Autor:in) / JENKINS JOHN F (Autor:in)

    Erscheinungsdatum :

    2019-05-21


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    E06C LADDERS , Leitern / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



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