Socket for the connection of flat contact pins.

The invention relates to a female contact for the connection of flat contact tabs, having a contact spring carrier which comprises two mutually substantially parallel support walls, at the preferably two inner sides each of a number of such curved contact springs is arranged so that a at of the towards one another directed bulges introduction of a flat reed with contact making elastic aufweitender gap is formed, with the ends of each contact spring on the outside of the associated supporting wall towards each bent and the distance between the two Umbiegestellen is selected each spring contact each other in the stretched state to the size of the contact spring camber determining degree greater than the distance of the supporting wall edges, on which rest the towards each other bent ends of the contact springs.

In a known contact bush of this type (DE-B-1033751, the support walls are provided with end-side projections that enforce their inclusion serves slot-like recesses in the end plates, with which they are associated. The distance between these end plates, corresponding to the length of the support walls , determines the number of adjacent arrayed curved contact springs this frontal boundary of the contact spring number is structurally complex;. in addition, the respective outer contact springs are mostly redundant, since they are rarely used for the function of electricity transmission, due to the fact that to be introduced into the contact socket flat reed regularly somewhat narrower than the gap it is receiving long.

It has now been found that a smaller, but still sufficient number of contact springs in the contact socket can be fixed, when the end edges of the carrying walls are each provided with a recess which defines in each case that region of the carrying wall edges on which the bent-over ends of the contact springs supported. In this simple way is to limit the number of contact springs worried that their arrangement exclusively in the area of ​​the recess of the front edges of the supporting walls. At the same time ensures that the springs upon insertion of the flat contact tongue in the female contact due to its flattening can indeed stand out from the front edges that case, however, does not result in undesirable lateral displacement of the springs. Through the holes in the region of the ends of the support walls that region of the supporting wall edges is rather respectively defined on which the bent ends of the contact springs are supported, and it is ensured in an advantageous manner that the contact springs maintain a proper position in its position next to each other.

When very low in terms of structure, it has been found when the two supporting walls are interconnected by a spacing of the supporting walls defining each other bulkhead. In this way it is possible to prepare the main component of the female contact forming contact spring carrier as a unitary stamped and bent part.

In a very advantageous manner the introduction of a gap-limiting for the flat contact prong is provided on the support wall of the transverse wall remote edges of the support walls.

This retaining wall could be fixed to the edges of the support walls by a welded or soldered connection. A simpler connection arises when the supporting wall extending transversely with away from her, at a right angle bent retaining tabs is provided, each of which rest on the outside of one of the supporting walls and make their toward each bent ends the firm grip of the retaining wall on the contact spring carrier.

To prevent a structurally particularly simple manner, an axial displacement of the support wall relative to the contact spring carrier, it has proven to be favorable when the transverse wall is provided with a cutout, in the engage the bent ends of the holding tongues of the retaining wall.

When in position next to one another very advantageous in view of a proper position of the contact springs, it has been found, when the ends of the retaining tabs are bent through 180 ° and the support walls adjacent engage behind each of the cutout.

The invention is further directed to a contact socket, which is characterized in that each contact spring carrier has at least one obliquely assigned to the axis of the introduction of the flat contact tongue of the outside of the contact spring carrier away extending latching tongue which at introduction of the female contact in a corresponding recess of an insulating body an opening provided in the recess lateral locking shoulder engages behind. In this way it is possible to equip with Prüfkontaktsteckvorrichtungen arranged at a certain pitch contact spring fitted contact sockets, which also dissolve easily in case of need again and can be exchanged against new contact sockets.

It has proved to be very beneficial as in terms of structure, if at least one of the two retaining tabs of the retaining wall a locking tongue is integrally formed.

In terms of design, it is very advantageous if, in a female contact with a current supply of the terminal projection nenden latter transverse wall connecting the carrying walls of the proceeds. Here, the connection projection with the fixed connection of a cable enabling crimp lugs can be provided in a variant.

If, however certain for Prüfkontaktsteckvorrichtung, highly stressed contact sockets, which are to be regarded as a kind of wearing parts, the connection projection is expediently an enabling form the easily detachable connection of a connected to a contact spring connector cable, an approximately round contact pin.

Further details, advantages and features of the invention will become apparent from the following description with reference to the accompanying drawings, reference is made expressly to the respect of all not mentioned in the description essential details.

Show it:<dl id="dl0001"><dt>Fig. 1</dt><dd>a perspective view of a female contact with a provided with crimping lugs cable connection,</dd><dt>FIG. 2</dt><dd>a perspective view of a female contact to a terminal in the form of a circular contact pin,</dd><dt>Fig. 3</dt><dd>a longitudinal section through a Prüfkontaktsteckvorrichtung with female contact,</dd><dt>Fig. 4</dt><dd>a cross section through the apparatus shown in Fig. 3,</dd><dt>Fig. 5</dt><dd>a perspective view of the upper end of a contact socket according to a first embodiment of the invention,</dd><dt>Fig. 6</dt><dd>a section through the female contact according to the line VI-VI of Fig. 5,</dd><dt>Fig. 7</dt><dd>a section through the female contact according to the line VII-VII of FIG. 5 and</dd><dt>Fig. 8</dt><dd>a section according to the line VIII-VIII in FIG. 5.</dd></dl>

Apparent in the drawing female contact not used to connect shown flat contact tongues, especially flat contact tabs with the customary in automobile dimensions 5.7 x 0.7 x 7.5 mm or 2.8 x 0.7 x 7.5 mm. It comprises a contact spring carrier 1 with two mutually parallel support walls 2,3, to which at least one, preferably two inner side (s) is in each case angecrdnet a number of such curved contact springs 4 / are that of the towards one another directed bulges one at establishing a flat contact tongue is formed by contacting elastically aufweitender gap. 5 In which, in the Fig. 1 - 8 illustrated embodiment of the invention, both ends of each contact spring are 6,7 4 2,3 towards each other are bent at the outer side of the associated carrying wall. The distance between the two Umbiegestellen 8.9 each contact spring 4 from each other is set to be larger in the stretched state to the size of the contact spring camber determining degree than the distance of the supporting wall edges 10,11 on which towards each bent ends lie 6.7 of the contact springs.

The two support walls 2,3 are interconnected via a the distance of the support walls defining each other transverse wall 12th At the the transverse wall 12 remote edges 10,11 of the support walls 2,3 a the introduction gap 5 delimiting the flat reed support wall 14 is provided. The support wall 14 is extending away with transversely from her, bent at a right angle holding lugs 15,16 provided. These are in each case on the outside of one of the support walls to 2.3. With her toward each bent ends 17,18 they steep the firm grip of the retaining wall 14 at the contact spring carrier 1 safely.

The transverse wall 12 is provided with a cutout 19 into which the bent ends 17,18 of the retaining tabs 15,16 of the support wall 14 engage. These ends 17,18 of the retaining tabs 15,16 are bent over by 180 ° and engage behind the carrying walls 2,3 respectively to the segment 19 adjacent. The 12 outgoing from the end edge 20 of the transverse wall front edges of the support walls 2,3 are each provided with a recess 21,22. These recesses start where the ends of the retaining tabs 15,16 expire. These cut-outs respectively define that region of the carrying wall edges 10,11 on which the bent-over ends of the contact springs 6,7 are supported 4th

From Figs. 3 and 4 is the use of the contact sockets according to the invention at a Prüfkontaktsteckvorrichtung with a plurality of through recesses 23 for the reception and releasable fixing of such female contacts having insulation body 24 produced. Each contact spring carrier 1 is provided with at least one, preferably two locking tongues 25,26. These extend obliquely away to the axis of the introduction of the 5 flat contact tongue of the outside of the contact spring carrier. 1 Upon introduction into the corresponding recess 23 of the insulating body 24, each latching tongue 25,26 engages behind an opening provided in the recess 23 of lateral locking shoulder 27,28.

From the drawing, it is apparent that the locking tongues 25, 26 are each integral with one of the two retaining tabs 15,16 of the support wall are formed fourteenth

The contact spring carrier 1 each contact socket of Prüfkontaktsteckvorrichtung is with one of the power supply serving terminal projection 29 provided. This is based on the line connecting the support walls 2,3 transverse wall 12th In the example illustrated in Fig. 1 embodiment of the connecting projection 29 is provided with crimping lugs 30 enabling the fixed terminal of a non-illustrated cable. According to the example illustrated in FIG. 2 embodiment, the connection protrusion may be formed in the form of an approximately round contact pin 31st This allows, as illustrated in Fig. 3, the readily releasable connection of a contact spring connected to a socket 32 ​​the cable, which is also not shown. In this embodiment, the cable can be together with the contact spring bushing 32 easily separated from the contact pin 31 in order then to remove the worn by frequent use of female contact from the recess 23 of Isollerkörpers 24 and replace it with a new contact socket.