A semi-trailer (1) comprises a trailer chassis comprising a front trailer part (2) and a complementary rear trailer part (3) which are slidably interconnected for telescopic movement between a collapsed position and an extended position. The front trailer part (2) has a kingpin (4) for attachment to a tractor vehicle for towing the semi-trailer (1). A number of bolster assemblies (5a-5f) are longitudinally spaced-apart on the semi-trailer (1) for mounting container boxes of various size on the semi-trailer (1) between associated pairs of bolster assemblies (5a-5f). The rear trailer part (3) is mounted on wheels (7). A pull-out extension frame (10) is slidably mounted on the rear trailer part (3) at a rear end of the rear trailer part (3) for movement between a retracted stored position on the rear trailer part (3) and an extended position on the rear trailer part (3) for increasing the length of the semi-trailer (1) in order to carry either two twenty foot containers or a forty foot container on the semi-trailer (1). The extension frame (10) slidably engages the rear trailer part (3) by means of a pair of longitudinally spaced-apart roller assemblies engaged between the rear trailer part (3) and the extension frame (10). The roller assemblies comprise an upper roller assembly engaged between a top of the extension frame (10) and the rear trailer part (3) and a lower roller assembly engaged between a bottom of the extension frame (10) and the rear trailer part (3).


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    Titel :

    Semi-trailer


    Erscheinungsdatum :

    2018-10-31


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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