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US 2017/0309422 A1Published application
Longitudinal switch for electric contact locking and position changing system
AssigneeRiotrafo Ltda
InventorLaercio Aparecido Machado
Life of this patent
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AssigneeRiotrafo Ltda
InventorLaercio Aparecido Machado
Estimating the term…
A longitudinal switch for an electric contact locking and position changing system was designed to position securely the movable switch elements (7), which are urged by springs (5) and a rack (1) and toothed gear (8) mechanism for moving a vertical shaft (9), acting upon fixed elements (contacts) (16) of an electrically insulating rail surface (15). Positions are changed by turning a control button (39) and the toothed gear (8), causing the vertical shaft (9) to rotate, thus moving the rack (1) and causing the movable elements (7) to slide on the semicircular surface (17) of the fixed elements (16), overcoming the force of the springs (5) and compressing them. Once the gap between the fixed elements (16) is located, the springs (5) push back, keeping the movable elements (7) locked and ensuring the effective electric contact with the electric current passing through these points of contact.
—LONGITUDINAL SWITCH, characterized by a mobile racket (1) with rails (2) of a terminal (3) with a couple of inner coupling pins (4), a couple of springs (5) pressed over conduits (6) of a corresponding pair of mobile elements (7) (assembled separately themselves), and said racket (1) receives, at is opposite end, a sprocket (8) that extends the vertical axis (9) with a threaded hole (11) end (10), as said sprocket (8), which is set in a lower bracket (12) with cradle (13) and coupling ridges (14), whereas an isolated surface rail (15) is inserted through the rails (2) with fixed elements (contacts) (16) assembled previously, equipped with semi-circular heads (17), as that rail (15) is locked onto the racket (1) by means of notches (18) coupled to such coupling ridges (14) of the lower bracket (12), as the vertical axis (9) receives an upper bracket (19) with coupling frame (20) and sealing rings (21), assembling a main bracket (22) with threaded nozzle (23), equipped with an outer conduit (24), ring stopper (25) and spacer receiver (26).
—LONGITUDINAL SWITCH, according to claim 1, after being assembled, the upper bracket (19) with main bracket (22), is characterized_due to both being inserted in a way to envelop the vertical axis (9), followed by locking said upper bracket (19), then closing the racket (1) sprocket (8) gear, exposing the threaded nozzle (23) by a hole opened previously on the distribution-type transducer (T) cowl;
—LONGITUDINAL SWITCH, according to claim 1 characterized by setting over the outer cowl surface of distribution-type transducer (T), from a second spacer (28), a positioning display (29) receptor hollowed by the window (30) in its circular wall and bottom-hollowed by radial elongated notches (31) presented around a center hole (32), whose point in its border is inserted to a sliding guiding cog (33) through the conduit (24) of the threaded nozzle (23), by which the center hole (36) guiding cog (37) also slides into, combining to radial holes (35) from a numbered flange (34) bottom, which, in turn, is set over said positioning display (29), followed by its locking through a nut (38) that is tightened in the threaded nozzle (23), as the latter then receives a female terminal (41) of a selector (39) hollowed by its center hole (40), in addition to a vertical hole (44) of distinct diameters, whereas said selector (39) still has a notch (45) on the opposite side of this handle (43).
—SWITCH FOR POSITION EXCHANGE AND LOCKING SYSTEM, according to claim 1, after rotating the selector (39), is characterized by turning the vertical axis (9) and sprocket (8), carrying the racket (1) to slide mobile elements (7) by semi-circular heads (17) of fixed elements (16), then surpassing springs power (5) and compressing them until they find enough room between said fixed elements (16), whereas after such springs (5) return, the mobile elements (7) are locked in these spaces, in a closed-circuit position, followed by the insertion of the selector (39) locking screw (47) through the vertical hole (42), of a locking screw (47), reaching for the numbered flange (32) holes (35) and reaching the elongated notches (31) of the positioning display (29), provided that a locker (C) or lead seal (L) is inserted between cover (48) holes (49) and selector (39) holes (44).
—SWITCH FOR POSITION EXCHANGE AND LOCKING SYSTEM, according to claim 1, characterized by semi-circular heads (17) geometry that prevent mobile elements (7) during shift from flowing over a single fixed element (16).
—SWITCH FOR POSITION EXCHANGE AND LOCKING SYSTEM, according to claim 1, characterized by cover (48) numbering to match the enumeration of the numbered flange (32), then viewing the switch locking position through the positioning display (29) window (30).