Shuttering (formwork) for concrete and the like

摘要

It comprises a plurality of articulated plates 1 which define an enclosure 2 where the concrete is deposited and means 3 for displacement thereof from a position outside to a position inside said enclosure 2. The means 3 for displacing the plates comprise a longitudinal inner shaft 4 via which move sleeves (bushes) 5 and arms 6 articulated to the respective sleeves 5 and to the articulation shafts 7, 8 of the plates, in such a manner that the arms 6 separate or bring together the articulation shafts 7, 8 with respect to the aforesaid shaft 4, defining the outer and inner positions. The outer position corresponds to the shuttering in the work position and the inner position corresponds to the removal position of the shuttering once the concrete has set. It allows easy removal of the shuttering and the manufacture of any type of hollow piece. <IMAGE>