Extendable driving section

摘要

Driving section of double T-shape in cross-section and having an injection line running along one of its inner edges, characterised in that, for connection to a second driving section of corresponding design, it has a recess at least at one end in the centre area of its connecting web, into which recess the injection line is passed, and in that this recess is defined by a closing platform extending transversely to the longitudinal direction of the driving section and having a location bore for the free end of the injection line.