| 摘要 |
The invention relates to a support-erecting deck for roadways in underground working, having a working platform consisting of a plurality of elements connected to one another, which have a plate in each case forming a sectional area of the platform and have sections, e.g. angle sections, directed downwards at most of their edges and preferably in one piece with the metal plate, as well as a plurality of lifting appliances which have draw means connecting the working platform to trolleys as well as drives allocated individually to the draw means and connection brackets fixed to the working platform, with the aim of simplifying the lifting appliances in such a way that the lifting trolleys required hitherto can thereby be dispensed with and of arranging the drives of the draw means in such a way that the connection brackets remain usable for connecting the previously known deck suspension or a similarly convenient suspension, provision is made for a plurality of elements of in each case at least one of the draw-means drives realised with a hydraulic thrust-piston mechanism (17, 18) to be pivotably mounted on one side under the plate and to be reeved with a pulley (19) into the draw means (14, 15), which is secured under the plate (3) and is run via a deflection pulley (29), which is mounted on the relevant connection bracket (32) fastened to the element (1), to the trolley (10, 10') allocated to the lifting appliance.
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