DE7337898U - Safety socket - Google Patents

Description

PBF 179 ^ ' ⁸ October «973

Gebr. B β rk © r, 5885 StahalJfcsmuhl * · .. '· Lj-

Safety «socket

The innovation relates to a safety socket for two-pole plug with or without protective contact with an over the contact sockets movable, housed in a recess in the cover below their introduction so varnishes for the plug pins, by means of one or more springs in a one-piece slide with openings upstream of them, held in a position that closes the insertion openings Inclined surfaces for guiding and inserting the connector pins, the has on its upper side recesses or approaches which interlock with recesses or approaches of the cover and which only through into the insertion openings simultaneously inserted connector pins can be unlocked and moved.

There are various designs of safety sockets known, which is essentially due to the type of securing of the latching of the slide when inserting a foreign body and their loosening when inserting a plug. To ensure proper functioning, the Tolerances for the individual parts can be very small, which leads to expensive tools and expensive reworking through deburring and polishing leads to the individual parts.

The innovation has set itself the task of eliminating the aforementioned difficulties and disadvantages.

It is solved by the fact that the slide along both of them j long sides is supported on spring springs and at its front

End on its lower side inclined towards the plane of the upper side

runs.

PBF 179 ² * ..... . ... 2 ...

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The bow springs ensure that the slide always rests against the latching means, even when there is play at the height of the slide chamber is pressed and the inclination on the slide additionally, that even when using a guide for the front end of the slide its inclination in the chamber against the displacement plane is possible.

The drawing shows an exemplary embodiment in four figures to explain the innovation.

The upper part of a socket with three flat pins is shown in a rectangular shape, which can either be retrofitted as a separate unit on a socket or forms a structural unit with its lower part or upper part with the socket housing.

FIG. 1 shows a plan view of the arrangement, and FIG. 2 shows a section along the line I - I in FIG

in the closed state of the slide, FIG. 3 shows a section along the line II-II in FIG when inserting a foreign body into the front

Insertion opening of the socket and the figure k again shows a section along the line I - I of Figure 1 when inserting the pins of a plug.

The arrangement consists, as usual, of a lower part 1 and an upper part 2, between which the slide 3 i ⁿ a cavity disposed k. The upper part 2 has the insertion openings 5 for the connector pins, the lower part 1 has exit openings 6 and the slide 3 has passage openings 7, which the inclined surfaces 8 are located in front of.

The upper part 2 has four lugs 9 in the four corners of the cavity and the slide 3 has recesses 10 on its upper side. Approaches 9 and recesses 10 can interlock in such a way that the slide cannot be moved in the direction of arrow A (Figure k). The closed position, which is shown in the figure, is ensured by a compression spring 11. Compared to this arrangement, known in principle, the slide 3 does not rest on the supports of the lower part 1, but rather on two bow springs 12 arranged on both sides of the slide 3, which are inserted in the lower part 1, for example, in chambers.

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Furthermore, the underside of the slide 3 is against the plane of his Upper side inclined at the end opposite the spring 11. Cross bars, the stops for the displacement path, can also be provided on all three parts 1 to 3; of Slide 3 result.

The starting position is shown in FIG Parts 2 and 3 latched together and openings 5 to 7 locked. If one tries, as indicated by the arrow B in FIG. 3, to introduce a foreign body, then it hits one of the inclined surfaces 8, the slide 3 lifts from the upper part 2, but it tilts forward on the spring 12, see above that the power connection of the rear latch is strengthened and the slide 3 cannot be moved away.

This process takes place when a foreign body is inserted in each of the openings 5.

If, however, according to the figure k, the pins of a plug into the openings 5 is inserted, both meet the inclined surfaces 8 of the slider 3, and press the slide against the pressure of the bow springs 12 downward, the slide from the two Verklinkungen 9 and 10 released and slides under the pressure of the connector pins against the bridge of the spring 11 in the direction of arrow A. This releases the three holes 5, 6 and 7 for the connector pins to pass through to the sockets located under the lower part 1.

733789I311.7I

Claims (1)

PBF 179 ² *; 18 October 1973 Gebr. Berbers, 5885 Schalk "mill ^ Schutssan s ρ r u c h Safety plug for two-pin plugs with or without Protective contact with a movable via the contact bushes, housed in a recess of the cover maintaining their insertion openings for the connector pins, by means of a one-piece slide with openings held in a position closing the insertion openings with inclined surfaces in front of them for guiding and inserting the connector pins, the recesses or Has approaches that interlock with recesses or approaches of the cover and only through in the insertion openings simultaneously inserted connector pins can be unlocked and moved, characterized in that that the slide (3) is mounted along its two long sides on bow springs (12) and at its front end its underside is inclined towards the plane of the upper side.