| 摘要 |
They consist in an external plate (1) which is fit under pressure on a frame (3) by means of prongs (4) which show inclined protrusions to allow they are easily removed. The frame (3) possesses a rectangular central opening (9) which will allow to locate one or more mechanisms while the external plate is provided with one or several related openings (8, 8a, 8b) depending on the mechanisms to be installed that the body (18, 38, 49, 53) shows, the application of base plate of an electrical outlet with two poles, base plate of an electrical outlet with two poles and earth connection, base plate of an electrical outlet in a variation with two pairs of poles with its related earth connection, in the so-called duplex arrangement and base plate for a so-called electrical outlet in duplex arrangement provided with differential GFCI, all those base provided with a safety plate . The external plate possesses openings corresponding with the central rectangular opening of the frame, the sizes and arrangement thereof changing depending on whether whether, two or one mechanism are installed. The base of the body (18) shows cylindrical appendages (21) in the interior of which there are the body for the contacts (40, 40') connection, being provided with openings (21a) (42) for the conductors. As electrical outlet with two poles and earth connection there is a third appendage (21). Under the cover (22) is located the rectangular safety plate (29) having a base with double initial position, as a rocker, which is located a cylindrical helical spring (30) which keeps it at its initial position, only when two prongs are entering at same time the plate is moved sideways overcoming the action of the spring. The contacts of the poles consist in a base plate fastened by means of a rivet (40a) on the connection body (40) and from which sides two upright sheets (39) rise obtained by die cut and folded as a clamp. The contacts of the earth connection consist in a base plate (27a) having the shape of a lyre. As duplex the dimensioning of the body (49) and its cover (48) is identical to that of the opening of the frame (9), there is only one mechanism on the frame. As duplex, it shows two sets of contacts for the two poles and it earth connection, only three connection bodies being available. As duplex equipped with differential, the frame (56) has cylindrical buttons (59) like a clamp on which holes (58) of the side flanges (57) of the mechanism cover will fit.
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