| 摘要 |
<p>The invention relates to a lifting tool for prefabricated dwelling modules, specifically for industrialised modules having recesses (2) with frusto-conical bases on at least one of the edges thereof, said recesses being provided with a metal coating (3) which co-operates with a base flat (4) having a central threaded hole in which a levelling screw (7) is inserted with play. The tool comprises a main body (8-8') having the same general configuration and size as the recess (2) in the module (1). The main body is provided with a plurality of bolts (13-14, 13'-14', 21) which can project from said body, the free outer ends of which terminate in a bevelled edge (41-41', 22) which facilitates the retraction of the bolts upon contact with the walls of the recess (2). The bolts are controlled by cams (16, 26-27) which move the bolts longitudinally in order to lock/unlock the tool in relation to the module (1) to be lifted.</p> |
