Patent ID: 6668511
Filing Date: 2003-12-30
Classification: E04G

Abstract:
A formwork for pillars comprising:several plates which are flat and rectangular, each which consists of an inner flat side and an outer side provided with a transverse rib; hinges, fixed to a longitudinal edge of each plate, each hinge including a shaft with a through hole; and sliding elements provided with wedge-shaped ends, that are capable of moving inside of the transverse ribs; wherein each of the several plates is arranged with the longitudinal edge in contact with the inner flat side of another of the several plates to form a prismatic contour, closed by the inner flat sides of all the plates, which sets a hole capable of being filled with concrete, and wherein the plates are attached to each other by inserting the hinges of one of the several plates into the orifices of an other of the several plates and by sliding the sliding elements so that they are inserted in the holes of th hinge shafts.