ES366513A3 - Improvements in the construction of electrical maneuver equipment. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in the construction of electrical devices of maneuver, characterized by coming to organize them based on the substantial combination of a hollow parallelepiped body of insulating material, free of one of its two larger side walls which is finally closed by a complementary piece of coverage and provided with a cut in the base corresponding to the frontis of the apparatus, while in its two smaller side walls has two symmetrical and identical cutouts, operatively arranged to allow the coupling to the body in question of a flat piece, elongated and insulator, with the specific functionality of acting as the maneuvering organ of the apparatus, for which purpose said part is entitled to move rectilinearly along a plane parallel to that which contains the bottom of the body being treated and being guided in its displacement by the abovementioned cuts; in addition, said sliding piece has as extension of its own structure: superiorly, a prominence of drive that emerges to the outside through the mentioned cut of the frontis of the aforementioned body, and internally, a protuberance that is topped by a narrow and short spike; with the particularity that in the internal surface of its bottom, the repeated parallelepiped body has two transverse recesses, one of them, with a semicircular cross section and covering the entire transverse magnitude of the bottom, and the other, of rectangular cross section and short length, whose recesses are operatively arranged to receive, by sliding, the setting of both elbowed ends of two elongated pieces of laminar structure and high electrical conductivity, whose parts also, of their aforementioned elbowed tips that are concave and flat respectively, present their two remaining parts, flat, arranged in parallel, along the bottom of the body and with the specific functionality of acting as fixed contacts, with the exception of their respective endings that emerge to the outside to act as terminals; with the additional feature that the assembly is completed by the actual connection mechanism, which consists of a piece of laminar structure and high electrical conductivity, acting as a mobile connector bridge and comprising, as such, a main flat, flat portion that along one of its longitudinal margins extends, within its same plane, in identical identical extreme expansions constituting two points of support and rotation through which said piece rests, on edge, on the concave extremity of crimping of the corresponding fixed-terminal contact piece, while on the opposite margin that connecting piece extends, laterally, into an elongated and narrow angular branch, apt to come into contact with the other fixed-terminal contact piece, and centrally and also within from its same plane, in a brief expansion on which a helical spring takes hold that at its other end is nta associated with the lower pin of the sliding control member in such a way that, the mobile connector piece is only empowered to adopt two stable positions, since the aforesaid control element in each of the two extreme positions that can adopt, does not exert a noticeable pressure on the said spring, but it does so during the period of time in which the change of position between each one of the positions of indifferent balance of the piece lasts, so that it is not possible to reach any of the positions intermediate due to the spring, which in these positions is fully or partially compressed, according to a longitudinal deforming force, tending to recover its figure and natural extension so, in order to achieve this it has to displace the mobile connector piece from the position of unstable equilibrium in which is at either of the two positions of indifferent equilibrium. (Machine-translation by Google Translate, not legally binding)