A locking arrangement for apparatus having a first component and a second component moveable relative to each other in a vertical direction such as an access platform having an elevating work platform. The locking arrangement comprises a first locking member (40), which is a pendulum or bob suspended with respect to the first component (12), such as an access platform, so as to be pivotable under gravity and a second locking member (20), which is a stop plate, fixed with respect to a second component (10), such as a chassis. The device incorporates a stop portion that cooperates with pendulum (40) to permit relative movement of the first and second components (12, 10) in a vertical direction only when the stop portion (24, 26) of the second locking member (20) adopts a horizontal orientation or deviates therefrom by less than a predetermined amount. This can be achieved by having the distal end of the pendulum terminate in an enlarged head (4,7) which incorporates hooks (48, 50) which will interact with the stop plate or second locking member (20) when the second locking member (20) has deviated sufficiently from the horizontal.


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    Title :

    Locking Arrangement


    Contributors:

    Publication date :

    2018-06-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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