PORTIC CRANE FOR THE TRANSPORT OF TRAVERSES

摘要

The invention relates to a mobile gantry crane (1) for the transport of sleepers (2), with a walking drive, with a support frame adjustable in height by drives and with a cross support device (11). comprising gripping tongs for sleepers (10) adapted to be positioned under ends of sleepers (9). Each gripper for sleepers (10) is associated with a clamping device (12), which can be spaced from it in relation to a vertical by a drive (13), for a support of the end of the cross member ( 9) on the crosshead gripper (10) underneath.