EP0427132B1 - Multiple contact and terminal block for communication equipments - Google Patents

Description

The present invention relates to a method for actuating a multiple contact and connection strip for telephone or low-voltage systems, with means for solderless insulation displacement connection, which comprise articulated, depressible swivel covers hinged to the body of the connection strip, from which pressure ribs project, each penetrate a wire insertion slot when pressing the swivel cover onto the body.

So-called insulation displacement connections have established themselves in modular multiple contact and connection strips for telephone or low-voltage systems, whereby standardized or standard-like grids have developed for the wire spacing or contact spacing, where an elongated one for each wire or wire Wire insertion slot is provided, which is penetrated at one point by a transverse clamping cutting edge, which generally protrudes contact connections perpendicular to the insertion slot.

So-called wiring pliers are used for the efficient pressing of each wire into a clamping blade.

With increasing compact design, the use of such wiring pliers is becoming increasingly problematic due to space constraints. However, it is also problematic with such connection strips with relatively closely following insertion slots or. limiting webs, the insertion of the wires into the insertion slots and in particular the insertion of the wires into the relevant notch of the clamping blade in such a way that a reliable electrical contact is established.

The same applicant, in his European patent application EP-A-0 310 832, already suggests a multiple contact pin holder of a modular connector for telephone or low-voltage systems with means for insulation displacement connection, which comprise a swiveling cover that can be pressed onto the body of the contact pin holder , from which contact-side pressure ribs protrude, which penetrate into the wire insertion slots when the lid is pressed down on the body and press the inserted wires into the clamping cutters of the contact pins, but this does not readily apply to the terminal strips in question here because of the closely following insertion slots leaves.

The object of the present invention is therefore to create a method of the aforementioned type, by means of which multiple contact and connecting strips can be easily wired despite the tightest arrangement, while producing safe electrical contacts and protecting such contact connections against contact.

This is achieved according to the invention in that when the swivel cover is pivoted out of an open position at right angles to the closed position, the pressure ribs each insert one wire, which is guided between the articulation of the swivel cover and a clamping cutting edge and parallel to the swivel cover in the open position, and also insert the wire in question into the slot Press the clamping edge of contact media.

These measures completely solve the main problem of wiring multiple contact and connection strips in a confined space, as well as the problem of exerting pressure on the wires for a safe electrical contact as well as covering the contact points completely, making the swivel cover so wide can be that several wires can be pressed simultaneously into the clamping edges of the associated contact connections of the terminal block.

In order to be able to generate a sufficient swiveling force in the closing as well as in the opening direction, particularly in the case of relatively wide multiple swiveling lids, an advantageous embodiment consists in that the swiveling lid has a recess on the top and at a distance from its articulation for the attachment of a tool that allows leverage to close resp. Has opening the swivel cover.

Fig. 1

in schaubildartiger Darstellung ausschnittweise eine erfindungsgemässe Mehrfach-Kontakt- und -Anschlussleiste mit eingelegten Drähten und teilweise offenen und teilweise geschlossenen Schwenkdekkeln; und

Fig. 2

einen Querschnitt der Anordnung gemäss Fig. 1 in anderem Massstab.

An example embodiment of the subject matter of the invention is explained in more detail below with reference to the drawing. Show it:

Fig. 1

in a diagram-like representation of a section of a multiple contact and connection strip according to the invention with inserted wires and partially open and partially closed swivel covers; and

Fig. 2

a cross section of the arrangement of FIG. 1 on a different scale.

The multiple contact and connection strip illustrated in FIGS. 1 and 2, which here comprises contact means 7 formed in a separating module several times in series in the body 1 of the strip, as shown in FIG. 2, has a number of longitudinal channels 20 arranged one above the other on the back guided reception of the wires 5 leading to the contact means 7. Wall openings 21 allow the wires to be guided (FIG. 2).

The means for insulation displacement connection to the body 1 of the terminal block comprise, at the point 8, hinged, depressible swivel covers 2, from which pressure ribs 3 protrude, which penetrate into a wire insertion slot 4 when the swivel cover 2 is pressed onto the body 1 insert a wire 5 into the slot 4, respectively. to press the wire 5 in question into a clamping cutting edge 6 of the contact means 7 (FIG. 2).

To make this possible, it is essential to the invention that the wires 5 are each led out between the hinge 8 and the clamping cutting edge 6, as can be clearly seen in FIGS. 1 and 2.

In order to do this with a relatively wide multiple swivel lid (Fig. 1) both in the closing and in the opening direction To be able to generate pivoting force, there is an advantageous embodiment in that the pivoting cover 2 on the top side and at a distance from its articulation 8 has a recess 9 (FIG. 2) for attaching a tool that allows leverage to close or close. Has opening of the swivel cover 2.

Using the drawings, the above results in a convenient solution to the aforementioned problems, since it is now possible to connect such terminal strips in a confined space without additional tools, while at the same time ensuring reliable electrical contact and protection of the contact point by means of a cover by means of a swivel cover.

Claims (1)

1. A method of using a multiple contact and terminal block for communication equipment which is provided with means for solderless IDC wiring comprising swiveling covers (2) which can be pressed downward, which are attached to the body (1) of the terminal block by means of a hinge, and from which ribs (3) extend downward, each of which enter a wire-insertion slit (4) when the swiveling covers (2) are pressed down onto the body (1), characterized in that when the swiveling cover (2) is swiveled out of the open position, which is at a right angle to the closed position, each of the ribs (3) inserts a wire (5), which leads out from between the swiveling covers' (2) hinge (8) and an insulation displacer (6) and runs parallel to the swiveling cover (2), into the slit (4) and presses the respective wire (5) into the contacts' (7) insulation displacer (6).

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