Closing device for deposits, preferably cylindrical, comprising at least a portion of envelope curve or arcuate section and an opening provided in this part.

摘要

Closing device for deposits, preferably cylindrical, comprising at least a portion of envelope curve or arcuate section, and an opening provided in this part and intended to be obturated by the said door (1), this device being constituted mainly (1), on the one hand, by two profiled elements (4 and 4¿) rectilinear and parallel to each other, fixed on the external face of the envelope or formed thereon, on either side of the opening (3) or at the edges of the latter and, on the other hand, by at least one plate-shaped element (5, 5¿) having a curvature close to that of the part (2¿) of the housing (2) having the opening (3) and two opposite edges (6 and 6¿) comprising each of which is provided with a longitudinal profiled structure (7) whose section enables engagement or retention in one of said profiled elements (4 , 4¿) constituting this maner some connection means and sliding over the entire length for the aforementioned or said elements (5, 5¿) plate-shaped guiding and securing the same between a position of closing the opening (3) and a position opening or release of the latter, whose gate device (1) is characterized in that the or each curved elements shaped plate (5, 5¿) at least slightly deformable due to pressure and may present at least two states corresponding to two different radii of curvature, authorizing the greater of these two radii of curvature displacement in translation of the corresponding element (5, 5¿) while the smaller of the two radii of curvature ensures locking in position the said element (5, 5¿), the smaller of these two radii of curvature at least slightly greater than the radius of curvature of the part (2) of the envelope having the opening (3).