Improvements in the security systems to obtain a presetted sequence of maneuvers. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the security systems to obtain a pre-established sequence of maneuvers, in order to prevent errors on the part of the operator, to install in cabinets or power distribution cabinets or the like, maneuvers being carried out with a lever (110) that it must successively cooperate with the end of different maneuvering trees (23, 25, 27; 123, 127,) characterized in that the system comprises: a plurality of sliding panels (37, 39, 41; 137, 139), in number that it depends on the number of maneuvering trees that must be successively accessible, which sliding panels are arranged adjacent to the maneuvering ends of the trees; in each of said sliding panels a number of holes (71, 73, 75; 59, 63, 65; 47, 51, 53) for the key equal to the number of trees and, adjacent to a longitudinally elongated hole (71, 59), 47), a transverse slit hole (77, 61, 49) and adjacent rectangular holes (79, 81, 67, 69, 55, 57) adjacent to the other holes; at the maneuvering end of each tree an off-center pivot (29; 31; 33) able to penetrate the transversal collision of a sliding panel and in the rectangular recesses of the other sliding panels, so that the key can be moved sliding panel linked by means of the hole inserted transverse to the pivot of the maneuvered shaft; the arrangement being such that for each position of the sliding panels there is access with the key only to reach a maneuvering shaft, and that with the maneuver of said shaft it is possible, with the corresponding pivot, to displace only said sliding panel until it becomes accessible another shaft, the pivot being able to move in the recesses of the other sliding panels. (Machine-translation by Google Translate, not legally binding)