Arrangement for manipulating and shifting lining parts in tunnelling

摘要

The arrangement is to enable lining parts to be accommodated, placed in situ, located and finally fastened in tunnelling in a simple manner. The invention essentially consists in the fact that: a) the unit has a gripping head, the bolt of which is mounted in an axially displaceable manner in a guide bush and has a shoulder pointing in the direction of the unit, and b) the lining part to be manipulated or shifted has a bush for accommodating the gripping head, with a widened portion in which a shoulder remote from the unit is provided, and c) a split annular spring which can be expanded into the recess by the axial displacement of the bolt is arranged between the two shoulders. Resulting as an advantage is the fact that in tunnelling a hydraulically controlled unit movable with several degrees of freedom for manipulating and shifting lining parts can be completed in such a way that the lining parts can be gripped safely, quickly and easily - even in the case of a heavy weight - by the unit, and the connection between unit and lining part can be released again after the lining parts are placed in their final position at the tunnel periphery. <IMAGE>