DE2411896C3

DE2411896C3 - Elastic indirect connection of plate-shaped components, in particular of electrical plug contact strips on a device part

Info

Publication number: DE2411896C3
Application number: DE19742411896
Authority: DE
Inventors: Erhard; Hawellek Walter; 8000 München Schulz
Original assignee: Siemens AG
Current assignee: Siemens AG
Filing date: 1974-03-12
Publication date: 1977-11-10

Description

formsdiliissigc Verbindung hergestellt.formsdiliissigc connection established.

Diese Verbindung läßt sich im Bedarfsfall leicht dadurch wieder lösen, daß das freie Scheiikclende durch Torsion wieder in den Bereich der Öffnungen gebracht wird.If necessary, this connection can easily be loosened by letting the free end of the Scheiikclende through Torsion is brought back into the area of the openings.

Die Erfindung wird an Hand cues Ausführungsbeispiels im Zusammenhang mit der Zeichnung näher erläutert. Es zeigenThe invention is based on the exemplary embodiment explained in more detail in connection with the drawing. Show it

Γ i g. I und 2 eine Ausführungsform des Federelements in Aufsicht b/w. in Seitenansicht,Γ i g. I and 2 an embodiment of the spring element supervised b / w. in side view,

I" i g. 3 ois 5 in verschiedenen Ansichten die Anwendung des Federelements als Verbindungsmittel zur Befestigung einer .Steckkontaktleiste an einer Montageplatte, I "i g. 3 ois 5 in different views the application of the spring element as a connecting means for attaching a plug contact strip to a mounting plate,

F i g. 6 und 7 die Kontur des Montageausschnitts, wie er für die in den F i g. 3 bis 5 dargestellte Befestigung erforderlich ist.F i g. 6 and 7 the contour of the mounting cutout, as it is for the in the F i g. 3 to 5 shown attachment is required.

Das in F i g. 1 dargestellte Fcderelement ist aus Fcderstahldraht geformt und als zwtlzinkigc Gabel ausgebildet. Im mittleren Bereich des die beiden Schenkel 4 miteinander verbindenden Querstegs 3 ist eine Öse 2 ausgeformt. Die Schenkel 4 sind im Bereich 16 um einen Winkel von etwa 180 Grad abgebogen und V-förmig nach innen ausgestellt. Damit verlauft die von dem freien Ende 5 und dem an den Quersteg angrenzenden Bereich 12 jedes Schenkels 4 aufgespannte Fläche, die je nach der Größe des Radius der Umbiegung 16 mehr oder weniger windschief ist, zu der durch die Bereiche 12 beider Schenkel definierten Ebene schiefwinklig geneigt.The in Fig. 1 is formed from spring steel wire and has a two-pronged fork educated. In the middle area of the crossbar 3 connecting the two legs 4 to one another is a Shaped eyelet 2. The legs 4 are bent in the area 16 by an angle of approximately 180 degrees and V-shaped on the inside. So that runs from the free end 5 and the one adjacent to the transverse web Area 12 of each leg 4 spanned area, depending on the size of the radius of the bend 16 is more or less skewed, at an oblique angle to the plane defined by the areas 12 of both legs inclined.

Bei der Einführung der Schenkel 4 in schlitzförmige Einführungsöffnungen wird das freie Ende 5 jedes Schenkels derart verformt, daß es in die durch den Einführungsschlitz und die Richtung der Einfiihruiigsbewegung definierte Ebene ausweicht. Dabei wird das Fcderelement im Bereich der Umbiegung 16 auf Torsion beansprucht.When the legs 4 are introduced into slot-shaped insertion openings, the free end 5 becomes each Leg deformed so that it is in the through the insertion slot and the direction of Einfiihruiigsbewegung avoids defined level. In the process, the suspension element is subjected to torsion in the area of the bend 16 claimed.

Im folgenden sei die Anwendung des Federclements zur Befestigung einer Steckkontaktleistc 6 an einer Montageplatte 18 erläutert:The following is the application of the spring element for attaching a Steckkontaktleistc 6 to a Mounting plate 18 explains:

Die Montageplatte 18 besitzt einen Montageausschnitt mit der in F i g. 7 dargestellten Kontur. Aiii F i g. b ist ersichtlich, daß aus der Ebene der Montage- > platte Hallenasen 7 ausgebogen sind, die mit durchgehenden Öffnungen 8 der Steckkontaktleiste 6 korrespondieren. Die Stcekkontaktleiste 6 besitzt Ausschnitte 15 mit C-förmigem Querschnitt. Die C-Schenkel 9 dieses Ausschnitts dienen zur Einführung der SchenkelThe mounting plate 18 has a mounting cutout with the one shown in FIG. 7 contour shown. Aiii F i g. b it can be seen that from the level of the assembly-> plate hall lugs 7 are bent out with continuous Openings 8 of the plug contact strip 6 correspond. The contact strip 6 has cutouts 15 with a C-shaped cross section. The C-legs 9 this section are used to introduce the legs

ίο 4 der Federelemente 1. Dementsprechend sind die C-Schenkel 9 durchgehend ausgebildet, während die Querverbindung 17 derselben zur versenkten Aufnahme des Quersiegs 3 des Federelements ί bemessen ist. Die erwähnten C-Schenkel 9 fluchten mit Ausnehmungen Ii der Montageplatte 18.ίο 4 of the spring elements 1. Accordingly, the C-leg 9 formed continuously, while the cross connection 17 of the same for recessed reception of the cross victory 3 of the spring element ί is dimensioned. The mentioned C-legs 9 are aligned with recesses Ii of the mounting plate 18.

Zur Montage wird die Steckkontaktlciste 6 derart auf die Montageplatte aufgesetzt, daß deren llaltenasen 7 in die Öffnungen 8 der Steckkontaktleiste eintreten. Sodann werden die Federelemen'.e 1 mit ihren Schenkeln in die entsprechenden C-Schenkel 9 der Ausschnitte 15 der Steckkontaktlciste 6 eingeführt. Beim Niederdrücken der Federelemente erfahren die freien Enden ihrer Schenkel die oben beschriebene elastische Verformung. Sobald die freien Enden 5 der Schenkel 4 über die Unterkante der Montageplatte hinaustreten, entspannen sie sich und vori-aken sich hinter den Ausnehmungen 11 der Montageplatte. Dieses Freigeben der vorgespannten Schenkelcnden erfolgt durch leichten Druck auf die seitlichen Schultern des Qucrsteges 3 z. B. mittels eines Werkzeugs 10. Nach, erfolgter Montage sind die Steckkontaktleiste 6 und die Montageplatte !8 durch die der Verformung des Quersteges entsprechende Rückstellkraft gegeneinander verspannt. For assembly, the plug-in contact box 6 is placed on the mounting plate in such a way that its llaltenasen 7 enter the openings 8 of the connector strip. Then the Federelemen'.e 1 with their Legs inserted into the corresponding C-legs 9 of the cutouts 15 of the plug-in contact box 6. When the spring elements are pressed down, the free ends of their legs experience the elasticity described above Deformation. As soon as the free ends 5 of the legs 4 step over the lower edge of the mounting plate, relax and fore-aken behind the recesses 11 of the mounting plate. This releasing The pretensioned leg ends are done by applying slight pressure to the lateral shoulders of the crossbar 3 z. B. by means of a tool 10. After assembly, the connector strip 6 and the mounting plate ! 8 braced against each other by the restoring force corresponding to the deformation of the transverse web.

.15 Das Lösen der Verbindung erfolgt durch Verdrehung der freien Enden 5 der Schenkel 4 in den Bereich der Schlitze 9, so daß sie durch die erwähnte Rückstellkraft in diese Schlitze hineingezogen werden..15 The connection is released by twisting the free ends 5 of the legs 4 in the area of the Slots 9, so that they are drawn into these slots by the aforementioned restoring force.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Patent claims:

1. Elastic indirect connection of plate-shaped Components, in particular of flexible connector strips on one device Federeleih.ni made of spring wire by im essentially fork-shaped frame, with the free ends of the crossbar connected to each other connected spring legs are bent at an angle of more than 90 Cirad and in the middle of one horizontal, elastic wire part that can be bent in the longitudinal direction of the leg by one in the one component arranged breakthrough can be plugged, the free ends in the unloaded state of the horizontal Wire part engaging behind the breakthrough in a form-fitting manner, characterized in that that the two free ends (5) in an identical manner to one another at the bend (16) on one part of the main plane of the Federelcmentcs (1) are bent away and on the other hand at an acute angle are bent inwards towards the spring legs (12), with two horizontal wire parts (3) arranged converging with a curvature upwards and in the longitudinal center of the spring element (1) are, wherein a cutout (15) is also provided in a component (6) to be connected, which has a C-shaped cross-section, the C-tendons (9) being continuous and the cross connection (17) of the same dimensioned for the sunk reception of the horizontal wire parts (3) is, wherein a through opening (8) is also provided in the middle of the C, into which a Hallcnose (7) engages the second component (18) to be connected, and finally in the latter Recesses (11) are provided, which with the C-leg (9) of the cutout (15) on one connecting component (6) align.

2. A compound according to claim 1, characterized in that in a known manner on the An eyelet (2) is formed in the upper middle of the Federelcmentes (1).

The invention is based on a combination of those specified in the preamble of claim I and through the US-PS 21 44 910 known Art.

This became known from US-PS 21 44 910 Connection has a band-shaped spring element. one of the two components to be connected to one another after joining with its bent free leg ends in the edge area of an opening engages behind. The spring clement itself only experiences bending deformations that are perpendicular run in the direction in which the components will be assembled. It must therefore be in this vertical position Direction of a correspondingly large free space can be provided, which has a correspondingly large breakthrough in one of the components.

DT-AS 17 75 074 made a fork-shaped spring element for connecting two components known. the free shank ends of which are bent at an angle of more than 90 degrees. This The free knuckle ends are guided into bores, which are formed in one of the two components. The extension of these holes perpendicular to the lead-in

direction is smaller than the projection of the bent free leg in the relaxed state. Through this the Schenl ends claw into the holes and thus become part of the parts to be connected.

Obviously, it is not possible to do this to be removed non-destructively from this component. The actual connection with the other component is produced in that the spring element with its central area in one in the other component Formed slot od. The like. Is introduced, the transverse extent compared to the largest transverse extent the area of the spring element protruding from the first-mentioned component is undersized, so that an easily releasable non-positive connection is created between the two components. For indirect However, this spring element is not suitable for a positive connection between two components.

The problem still to be solved with the invention consists in this. To improve connections of the type specified in the preamble of claim 1 and made known by US Pat.

The design means specified in the characterizing part ues claim I are used to solve this problem provided, while the design means specified in claim 2 an advantageous and beneficial Represent continuing education.

Although it has become known through US-PS 21 43 603 a connecting element in which a free Leg of a spring part is bent away from the main plane of the spring part, and at an acute angle is arranged to the spring legs. However, the other technical conditions are the same with this one State of the art stored quite differently than in the case of the invention.

The spring element forming the subject of the invention enables - as mentioned - a form-fitting Connection of two components. The deformation causing the positive connection is essentially a torsional deformation, wherein the torsion spring is formed by the free leg so that it has a correspondingly soft spring tension. Therefore Great forces are neither required to establish nor to loosen the connection. Through the im Claim 1 described inclination of (depending on the radius of the Bicgcstelle more or less crooked) surface, which is spanned by the individual areas of each spring leg, results in the following Function of the spring crelemenis forming the subject of the invention: First of all, each leg of the spring element inserted into an opening, which is formed by aligned recesses of the connection parincr is formed. If at least one of the openings assigned to each leg is the Has the shape of a slot. is the free end of this leg in the direction of the slot and the direction of insertion cut out certain plane. The leg in question is like a Helical spring subjected to torsion. As soon as the free vision is complete Implementation through the recesses of the connection partner relaxed again, it is located at the Rear side of the transverse web of the spring element; \ bgewandtcn Connection points outside the area of the feed-through openings. This is a safe one