DE1640554A1 - Socket electrical contact and method of making it - Google Patents

Description

Dipl.-Ing. Heins Claessen Ί R Λ Π ~ K Z. Pattntanwalt I ö ^ υ · 5 ^

7000 Stuttgart W. lotebühlstrasse 70

£ 3747 A.J. Tarrin - 1st

21ΪΕΒΝΑΪΙ0ΝΑΙ. STANDABI) ELECTRIC COüP OHATIOH, MEW YOBK

Electrical socket contact and procedure for its Manufacturing

SIt priority dtr registration Ir. 581 993 of September 26, 1966 in the United Mares of America is in Anepruoh

taken

The invention relates to an electrical jack contact on the open-ended plug and the method of making the jack contact.

It is known to produce socket contacts from spring material, in which several axially extending® slits are cut distributed around the circumference. The resilient tongues that are created in this way are directed into one another but are not bent at all. This guide has the disadvantage that the inner diameter of the bushing and the diameter of the socket of the suggestive> teokersi: ift @ s with large

made to be silssen. Mn eteekerstift bit from "Irieineia diameter would only fjreft> .ait lower in Bouhae? Ou the resilient negotiations held werdm · Ub dä @ Contact kxmft sa eraSfcen, so iat at a different biksant 's book en-

“September 1967

109812/0396

BAD ORlGfNAl.

131 / * · «. 3747

execution in the seam of the socket opening a groove or «Imprinted in the radial bead in which a peder ring is arranged. In both versions, however, there is the laughing stock that accidentally plugging in one is not su larger Steoker pin bit belonging to this connector « Diameter is not prevented · Ss would be the bushing in such a way aafa praise that it would be completely useless "

Another solution that has already been proposed provides that in One or more slots are axially sawn into the cup body * with an annular section at the plug inlet remains ungrounded «Xn the slides are then divided into springs» which press on the inserted connector pin · The number of connectors with too large diameters · is thus probably a connector, but the design has the disadvantage that chip removal · dt ArveitsfjMage are required and also one or more Feather * is required as mandatory island parts

The LätgÜHt tor invention is to avoid these laughs and to create a simple bushing made from sheet metal in one piece.

IrfindungegeaäBs the · in that · in the rolled out circumferential bushing is arranged from the bushing wall free ohms-ml nmh internally folded resilient tongue with its free tongue facing the plug insertion opening.

According to the embodiment of the invention, the lung section adjacent to the bending point is bent by 180 ° and the remaining part of the lung is bent by less than 180 °.

Mn · f «it formation of the invention provides for» dasa das free suag «« »

1 0 9 B 1 l / ü J '3 6 ^>

BATH

ISE / Reg. 3747

end is thinned by embossing, knows with its tip to the socket wall and in the embossing area approximately the radius of a Steokeretiftea corresponds.

According to another embodiment of the invention, the socket is made in one piece from beryllium copper and has two inside axially parallel ribs, which are formed by externally imprinted sieves.

Haoh a wide s embodiment of the invention, the resilient lungs and the ribs within the socket have the same distance from one another. *

The socket is produced according to the invention by following Verfahrtneachritteι

a. Embossing the beads and cutting the tongue, b bending the tongue and embossing the free tongue end,

C. Separating cut of the plate τοπ sheet metal trelves,

d. Roll the plate into the sleeve shape *.

Seron the development of the invention and specification of the process steps leading to the product, various advantages are obtained. The ϊ derelement is arranged protected within the sleeve against jegli- λ before damage. Close the resilient tongue with the two ribs give the inserted connector pin a good guide. The contact is electrically safe because ei · takes place simultaneously at three points and thus has a low electrical contact resistance. The socket can be manufactured cheaply in large numbers without waste and without machining. Special tool-related equipment is not required for this. Special manufacturing knowledge and a high level of technical knowledge are also not necessary for their manufacture, since Alt Boche

1 0 9 B ι. / G 3 9 6 .4.

BATH

ISE / Reg 5747

-4-

The invention will now be described with reference to a drawing. In the drawing show:

Fig. 1 shows the growths with an em ..: <teekerstift in front of their insertion opening, in perspective view,

Pig. 2 the socket according to FIG. 1, partially cut lengthways, with the plug pin inserted,

Pig. 3 the socket with inserted plug pin, in cross-section

Pio. 4 the initial shape of the socket as a sheet metal plate, with indented beads and cut-free tongue, shown in perspective,

Pig »5 the sheet metal plate according to Pig. 4, with the tongue bent, in a perspective view.

In the pig. 1 and 2, a sleeve contact is designed as a socket 10, which is made of resilient contact material, such as beryllium copper, consists. The front open end 10a is used to introduce and receive a cylindrical plug 11. The rear end 10b Selgt an associated connecting wire or other conductive connection element 12 · Its elongated tongue 14 is a Sehllts 16 causing, cut out of the wall of the socket 10 and bent forward by a little less than 180 °. Like from the Pig. 1 and 2, the front or free end 14a of the tongue 14 lies slightly within the socket 10 the Buohsenwandung, while the rear end 14b of the tongue fully rests approximately in the middle of the socket.

More precisely, a section Hc of the rear end t4 * of the tongue 14 is completely bent by 180 ° and lies directly on the inside of the socket wall, while the rest of the tongue

1098 12/0396 " ⁵ ^

ISl / Reg. 3747

-5-

piece, especially at the front edge, was bent less than 180 ° is·

With this arrangement, the tongue H acts as a spring with elastic properties. The intended section Ho along with the tongue H causes the wearer to tension the spring in the first place Line is limited to the area of the curved edge of the Section Hc. If a plug 11 is inserted into the socket 10, it pushes the free end Ha of the tongue H away, with one There is friction and good electrical contact.

To further support good contact between socket 10 and plug 11, two elongated beads 18, 20 are provided from the outside Imprinted in the socket wall, the slopes 18, 20 appear as grooves on the outside of the socket 10. Wiricen inside they like ribs. The tongue H and the beads 16, 20 are the same Arranged at a distance from one another on the circumference of the socket 10 distributed. They run parallel to one another in the axial direction.

When the plug 11 is inserted into the socket 10, the tongue 14 deviates and presses the plug pin 11 resiliently against the protrusions or ribs of the beads 18, 20 Pig · 3 can be seen. The front rounded ends of the beads 18, 20 and the tongue H terminate in approximately the same distance from the front jack end 1oa ₉ the curves facilitate the sliding of the plug pin 11 during Q'taokfovsans · The Federv / EC. Tongue H allows plug 11 \ mä Bu & hfjs 10 with larger tolerances herssustelloas without the

It does not interfere with the electrical and mechoaleohon. The Zung® H is ausesMes & o h., Your radius döia iDtu'chßieasei? des St ^ -eke ^ o 11

a gvüBwxQ Kou-bakt area svJißühea Steeksv 11 ^ ■ "■■ seeotell-t: v! / '4e

:; i - / -υ 96

BAD Hfti ⁱ

ISE / R * g 3747

-6-

As Fig * 2 shows, it is useful that when inserted Plug 11 remains a small distance between the free end of the tongue Ha and the adjacent socket wall. At this Arrangement is the required force sum insertion and withdrawal of the plug 11 only τοη the tongue properties and the plug 11 is determined. In order to allow the tongue end Ha with an inserted plug 11 an additional evasive play; ea is embossed to a point and the material thickness diluted.

The existing tongue end 14a thus limits the evasive movement of the tongue 14. This feature is important when the Buohae 10 is designed for a narrow tolerance range, such as with miniaturized components. The necessary Accuracy is taken into account in the invention; its dimensions of a socket 10 planned for production start are explained using the following example.

The bushing consists of a material τοη 0.2286 mm thick (0.009 ") and has a diameter τοη 4.0640 mn (0.160"), the Tongue length is approximately 8.0264 mm (0.316 "), the movable tongue portion of which is approximately 6.3500 mm (0.250") long and approximately 2 «4130 mm (0.095") wide. When the Steoker 11 is pulled out, the round edge of the tongue end Ha to the beech wall a distance Ton oa · 0.3048 mm (0.012 "). With the plug 11 inserted, the distance is approximately 0.0762 mm (0.003 "), so that the force acting on the Steoker pin is only τοη of the resilient tongue 14 going out

The previously described function of the Buohöä as a 2? Eil u'itms connector with its advantages is cheap herotellfea? miä just fcii continue. The socket 10 is punched, bent , stamped, rolled, fitif arbitrarily by simple Vw- ^ w wlu; \ ffi.ißeMnsn made. With the utmost arteitkgmu .: gen Sindtfttckcn the sv / el beading 18, ^ O uM üfre ^ ehnitt cle

10 98 ', / mjjSB BAO ORIGINAL

Ί6Λ055Α

ISE / Reg, 3747

-7-

as Fig. 4 shows. In the next production step, the free tongue end Ha _{9 is} embossed in which it is given the intended shape. In a further operation, the cut-free tongue 14 is bent back by slightly less than 180 °, so that the free end 14a of the tongue 14 assumes the position shown in FIG To couple tongue end 14a with this manufacturing step or to shape after bending · The subsequent rolling process forms a sleeve body as shown in FIGS. 1 to 3 in that the edges 10c, 10d are joined together in the axial direction to form a seam. λ

4 and 5 is the starting material for the socket as a rectangular plate. For the production of larger ones However, in quantities it is cheaper to use the Kon ^ old material in strip form to use. Therefore, if several identical work steps are carried out in parallel, the plate pieces remain for the time being connected and are only separated before rolling.

6 claims

1 sheet of drawing with 5 figures

-8th-

1098 Ι 2/0396

Claims (2)

ISE / Heg. 3747 claims 1. Electrical socket contact for receiving an appropriately trained Connector, characterized »that in the sleeve-shaped socket (10) rolled from sheet metal one of the Socket wall cut free and folded back inward resilient tongue (14) with its free tongue end - ('14a) -zur Plug insertion opening is arranged widely. 2. Electrical socket contact according to claim 1 _f marked «» is characterized in that the Öer bending point adjacent Zungdnai) sehnit "fe (14c) by 130 ° and the rest of the tongue part is less than 180 ° tare arc. 3 · Electrical socket contact according to claim 1 and 2 _f characterized in that the free connector (14a) is thinned by embossing, its: ³ tip points to the socket wall and in the embossed area approximately the radius of a plug pin (TI) corresponds to * 4 «Electrical socket contact. according to claim 1 to 3 »thereby. indicates that the bush (10) is made in one piece from beryllium copper and has two axially parallel ribs on the inside, which are formed by beads (18, 20) pressed in from the outside. 5 · Electrode or socket contact according to claims 1 to 4 »characterized in that the resilient tongue (14) and the ribs (18, 20). Inside the socket (10) have the same distance from one another. 0 S fc, ι i J λ η ö BATH ISE / Reg. 3747 6, method of making the electrical socket contact according to claims 1 to 5 »characterized by the following process rens steps * a embossing of the beads (18, 20) and I'reischnitt rl er tongue (H) * b. Bending the tongue (H) and embossing the free end (Ha) ₁ c. Separation cut of the plate from the sheet metal strip> d. Rolling plate in the sleeve shape.