ES2360764T3 - CONNECTION DEVICE FOR DRIVERS. - Google Patents

Abstract

Connection device (1) for a conductor (2), which a) has a clamping spring (3) and a conductive bar (4) which is / are arranged in a metal cage (5) that has a polygonal shape in the cross section, with four side walls (5a - 5d), and is open at least one axial end that configures an entrance opening (14) for the conductor (2), b) presenting the clamping spring (3) two longitudinal sides (3a and 3b) of which one is designed as a clamping side (3b), being oriented relative to each other at an acute angle, and connected to each other by means of a flexion zone (3c), c) being fixed the first longitudinal side (3a) of the clamping spring (3) on the inner face of the first side wall (5a) of the metal cage (5), and supported by sectors directly on the inner face of the wall (5a) lateral, and d) the flexion zone (3c) of the clamping spring (3) resting on at least one rib (10a, 10b) formed d directly on the metal cage (5), characterized in that e) a shoulder (11) is provided on the inside of one of the side walls (5d) of the metal cage, as a limitation for the deviation of the clamping side (3b) , and f) prints (48) on the second and / or fourth wall (5b and 5d) are arranged in the corner areas with the conductive bar (4), and folded inward, such that between them and the bar (4) driver defines a space (49) for entry and accommodation for the driver.

Description

The invention relates to a connection device for conductors according to the preamble of claim 1.

Connecting devices are known for conductors, with clamping springs, in the most diverse variants, and have proven themselves. Examples are document DE 197 376 739 A1, DE 42 31 244 A1, DE 35 20 826 A1, DE 24 40 825 A1, DE 295 00614 A1, DE 81 36 054 U1 DE 69 200 U1 and WO 02/13 319 A1. A connection device for conductors according to the preamble of claim 1 is known from US-A-5 685735.

Against the background of this current state of the art, there is a need for a connection device with clamping springs, of particularly simple operation, which is of favorable manufacture and of universal application, and must present the least possible need for the adaptation of the equipment that receives the connection device, such as terminals in a row or printed circuit boards.

The solution of this problem is the mission of the invention.

The invention solves this mission by means of the object of claim 1.

Accordingly, it is provided that the first longitudinal side of the clamping spring is fixed on the inner face of the first side wall of the metal cage, and is supported by sectors directly on the inner side of the side wall, the flexion zone of the clamping spring is supported by at least one rib formed directly in the metal cage, and a shoulder on the inside of one of the side walls of the metal cage, is provided as a limitation for the deviation of the tightening side.

With the invention a connection device is made with a clamping spring, especially cheap and composite of few pieces, which is secured against disconnection in the metal cage, exclusively by means of elements functions configured directly in the metal cage, absorbing all the forces of the drive of the metal cage, which can be inserted as a whole or as a pre-assembled unit, in a terminal box in a row, or it can be mounted on a printed circuit board. In this way, it is still only necessary to provide, for example, in a terminal in a row, a recess adapted to the external geometry, but no Kind of nerves or the like in the terminal box or on a printed circuit board, which assume special functions - so for example, an insurance against disconnection of the spring, or the function of a stopper. These functions are assumed by the metal cage.

According to another especially preferred improvement and also of independent application, it is foreseen that the tightening side present at its free end, centering points that preferably, at least in the disconnected state, fit into corresponding recesses properly formed in the conductive bar. Conductors of the most different diameters and, in particular, also several conductors can be introduced without problems into the connection device, due to the centering devices, always ensuring good contact between the at least one conductor and the conductive bar. The lace of the tips centered on the recesses, It also makes possible the connection with conductors with an especially small diameter.

According to a variant, it is also possible to imagine that the holding cage is composed of a good conductor metal such as copper, and assume a conductive function of the current, or that the conductive bar and the holding cage are made of a single piece, of conductive material.

Other advantageous conditions are deduced from the remaining secondary claims.

In the following the invention is described in detail, by way of exemplary embodiments, with reference to the drawing. Shows: Figures 1a - 10 different views and functional states, as well as variants of use of a first example

plo; Figures 2a - 2f various views, functional states, employment variants and variants, of a second

example; Figures 3 to 18 various perspective representations of other examples; Figures 19 to 21 various perspective representations of an alignment of connection devices; Figure 22 two connection devices in a row terminal schematically represented; and figure 23 two connection devices in another terminal in a row schematically represented; Figures 24 to 29 other examples of embodiment of connection devices.

Figure 1a shows a connection device 1 for a bare conductor 2 in the terminal area (see, for example, Figure 1b), which has a holding spring 3 and a conductive bar 4, which are arranged in a cage 5 metallic

The metal cage 5 has a rectangular shape in the cross section, with four lateral walls 5a-5d, and is open at its two axial ends, serving one of the open faces  in Figure 1a, the upper open face cara as opening 14 input for a conductor 2 and for a drive tool or the like.

The side walls 5a and 5c, first and third, which are opposite and oriented parallel to each other, are configured narrower than the other two side walls 5b and 5d, second and fourth, parallel to each other.

For better understanding, in figure 1b the connection device is represented without the second, and here above, side wall 5b.

As recognized, the clamping spring 3 formed from a rectangular strip of sheet metal, has two longitudinal sides 3a and 3b that are oriented relative to each other at an acute angle, and are connected to each other by means of a flexure zone 3c.

The first longitudinal side 3a of the clamping spring 3, is fixed on the inner face of the first shorter side wall 5a of the metal cage 5, and is supported by areas directly on the inner face of the side wall 5a. Its dimensions correspond to the dimensions of the inner face of the first side wall 5a.

The conductive bar 4 is configured on the L-shaped side elevation, and is supported with its contact side 4a, on the inner face of the third side wall 5c that is opposite the first side wall for fixing the spring 3 clamping The second side 4b covers the axial opening of the metal cage 5, further away from the inlet opening 14, and thus configures a limitation or a stop for the conductor 2, by introducing it into the connecting device.

The first longitudinal side 3a has a recess 6 in which an overhang 7 of the first side wall 5a is engaged. The emptying is here rectangular, and is located in the part of the side wall 5a, further away from the entrance face for the conductor 2. The shoulder 7 also has a rectangular shape here. It is shaped by causing a U-shaped punch to be stamped on the first side wall 5a, whereby the metal tab still attached on one side in a flex zone 8, with the first side wall 5a, bends inwards. Here the bending zone 8 for the shoulder 7 is located towards the driver's entrance face. In this way it is possible in the assembly, to introduce the holding spring 3 in the metal cage 5, through the entrance face for the driver, the drain 6 sliding on the shoulder 7 and there it is hooked behind its edge that configures a beading 9. With this, the clamping spring 3 is simply secured against an unintended detachment of the metal cage 5, when the clamping device 1 is disconnected.

In the second and fourth lateral wall 5d of the metal cage 5, they are formed on the inlet face, two ribs 10a, 10b whose length corresponds, for example, to half the width of the holding spring 3, and which are bent inwards perpendicular to the respective planes of the side walls. These ribs 10 simply serve as support for the flex zone 3c of the clamping spring 3.

The second longitudinal side 3b extends obliquely to the direction of entry for the conductor, inwards in the metal cage, and arrives here, in an unconnected state, to the conductive bar 4, and rests on it.

It is shaped curved in itself twice in a wavy shape. When introducing the conductor, the second longitudinal side 3b, also called the clamping side, deviates downwards in the direction of entry. Its movement in this direction is limited by a shoulder 11 that looks inward at the fourth side wall 5d, which is configured as a tongue still joined on one side with the side wall in a flex zone 12, and stamped in a U-shape. , on three sides.

The metal cage 5 is also shaped as a bent piece from a stamped sheet which after stamping is folded in the mold of the metal cage 5, where the point of intersection of the edges of the sheet strip is located here, in the zone of the second side wall 5b, and the two edges being hooked on each other, by means of a clasp-shaped joint 13 (groove / tongue type).

Other projections or prints 36, 37 on the second and fourth lateral walls 5b and 5d in the corner areas with the first lateral wall 5a, on the edges of the lateral walls 5a, 5b, located further away from the entrance opening, they compress the clamping spring 3 in the area of the longitudinal side 3a, against the first lateral wall 5a.

The folded end of the conductive bar, which protrudes from the entrance opening 14 for the conductor 2, as well as the clamping side 3b, together form a kind of funnel-shaped entrance zone for the conductor 2, which facilitates the introduction in connection device 1.

A vault 15 on the first longitudinal side 3a of the clamping spring, above the recess 6, serves to optimize the effort.

A connection device is essentially created that is fully capable of operating, for conductors, which can be applied as universally as possible, without any major adaptations being necessary at the place of employment. For example, it is possible to insert the connection device into a row terminal and, essentially, to provide for the insertion of the connection device, only a recess adapted to the geometry of the connection device (see also the embodiments of figures 22 and 23). No special or similar ribs are necessary that serve, for example, as stop elements for any parts of the connecting device.

Figure 1c shows an individual representation of the conductive bar and the clamping spring 3, in an open state for connection (but without a conductor for clarity). Here, the clamping side 3b rests on the shoulder 11. For mounting, the conductive rod 4 can be easily pushed into the metal cage 5, from below, for example, in the open state.

Figure 1d shows what happens with the connection device, after the introduction of a conductor 2. As it is recognized, the tightening side 3b of the spring is supported on the shoulder 11, so that it is exerted on the conductor, a especially defined clamping force, which compresses the conductor against the conductive bar 4.

Figure 1e illustrates that next to the driver there is sufficient space for, by means of a drive tool, especially a screwdriver 16, to press the tightening side 3b against the shoulder 11, to release the conductor 2. When introducing the conductor it is not absolutely necessary such a drive, but it is also possible to introduce the conductor 2 of a single wire, especially suitable here, or a thin wire conductor with crimped cable ferrule, simply by plugging it into the connecting device 1.

Figure 1f illustrates the integration of the connection device 1 into a terminal box 17, which has a recess 18, as well as input openings 19, 20 for the screwdriver 16 or other drive tool, and for the driver 2. With the The screwdriver is especially possible, practically and securely push down the tightening side 4b, in the undulating area, and open the tightening point of the connection device 1. Thanks to the shape of the spring and the structure of the metal cage 5, as well as the screwdriver guide (opening 19) in the terminal, an obstruction of the conductor 2 by the screwdriver is prevented.

Figure 1g shows an alternative embodiment in which a drive part 21 is supported on the side 3b of curved tightening in a wavy shape, which has on its upper face a notch or a slot 22 for the support of the screwdriver and, on one side, a retention projection 46 for securing against falling out of the terminal box.

As recognized in Figure 1h, the drive part 21 can be guided by pushing in a correspondingly formed recess 19 ’, and allowing a particularly defined and efficient drive of the connection device. As it is recognized in FIG. 1i, it is also conceivable to fix the conductive bar, for example, directly on another conductive bar 44, then the L-shaped conductive bar 4 is not configured, that is, it has no second side 4b. Figure 1j illustrates that a test socket 24 can be arranged at the most diverse points of the connection device, for example, on an outer face, for example outside the first side wall 5a.

Figure 1k illustrates as Figure 1l, the introduction of a drive part 21 into the opening 19 ’of the terminal box 17. The retention boss 46 here secures the drive piece against falling out of the row terminal.

Figure 1m shows that the upper face of the drive part 21 may be widened so that a zone 38 of a marker is formed for the application of a marker. In the terminal box 17, a corresponding recess 39 is configured for housing the zone 38 of the marker.

Figure 1n illustrates the assembly or introduction of the connection device 1 with the conductive bar 4 from the side, in the drain 18 of the terminal box 17, simply conditioned, essentially perpendicular, where the connection device 1 interlocks safely in an emptying of the terminal in a row, with a shoulder 45 that is folded directly out of the lateral face of the metal cage 5, so that it is secured against a lateral outlet.

Figure 1 shows in the upper part the clamping spring 3 or contact spring, together with the metal cage 5, and in the lower part, the L-shaped conductive bar 4, in individual representation.

The embodiment example of figure 2 corresponds broadly to the embodiment example of figure 1, of course, here the second clamping side 3b is not configured in itself bent in a wavy, but flat, so that no surface is configured of support for the screwdriver 16. In spite of all the variant it is able to work, when according to the type of figure 2b, the opening 19 for the screwdriver 16 is configured by reducing in the direction of entry, so that it is limited the movement of the screwdriver 16 in the terminal box 17.

For the realization of a defined state of stress, it is provided according to the variants of Figure 2c, to configure the clamping spring, thickened in the bending zone or in the flexure zone 3c. In figure 2d this effect is achieved by the vaulting 15 on the first longitudinal side, and in figure 2e, by a reduction 40 in the area of the first and the second tightening side, respectively on both sides of the tightening side in the binding to the flex zone 3c. In Fig. 2f the defined state of stress is realized by two openings 41 drilled in the form of drops, in the center of the sides 2a and 2b.

Figure 3 shows a variant in which the metal housing or metal cage 5 is reduced from one side downwards, from the entrance face 14 towards the conductive bar 4 (in the area of the side walls 5b and 5d). By the way, the cross section of the metal cage 5 remains correspondingly rectangular. But also the cross section is reduced in the direction of entry. Here a connection device is constructed which is constructed especially compact, but whose structure corresponds otherwise to the embodiment of Figure 1.

In Figure 4 it is even provided that the terminal housing is reduced on both sides, that is, each of the two side walls 5b and 5d, has a trapezoidal shape, which once again requires little space and is more compact .

According to Figures 5a and b, on the face of the connection device 1, opposite the inlet opening 14, it is formed in the metal cage 5, in the holding spring 3 and in the conductive bar 4, another side 5e, 4c and 3d in each of them, which are bent over each other, existing between the 3d side of the spring and the side 4c of the conductive bar 4, a connection possibility for a male plug 25. The 5e side of the metal cage serves here as a stop for the movement of the 3d side of the pier.

Figures 6a and b illustrate that in a corresponding variant of a conductive bar 4, which does not close the face of the metal cage 5, opposite the inlet opening 14, the area between a curved end 26 of the first longitudinal side 3a and the first side wall 5a, can be used as a possibility of plug for a test socket, or for an auxiliary connector 27. Figure 7a illustrates that also between the flex zone 3c and the first side wall 5a, a similar auxiliary connector 27 or a test plug can be plugged in.

Figure 8 combines the variants of Figures 6 and 7, and allows the fitting of auxiliary connectors 27 or test pins, both according to the type of Figure 6, as well as according to the type of Figure 7.

Figure 9 illustrates that the embodiments of Figure 6 can be used, instead of placing an auxiliary connector 27, also for the introduction of another conductor 28.

Similarly, Figure 10 shows the introduction of another conductor 28 between the flexure zone 3c of the clamping spring 3, and the first side wall 5a.

Figure 11 combines the variants of Figure 9 and Figure 10, that is, conductors 28 are connected both in the direction of entry between the flex zone 3c and the first side wall 5a, as well as on the opposite side between the bent end 26 and the side wall 5a.

Figure 12 illustrates that directly at the ends of the metal cage 5 opposite the inlet opening 14, pins 29 can be formed for welding or snapping, which can be inserted in a printed circuit board 23 or in openings 31 of the printed circuit board 23, and there they can be welded, snapped or riveted. According to Fig. 12, next to the solder pins, pins 30 are still configured for plugging with protrusions 43 that make bead breaker 32 that can be interlocked when plugging, in corresponding slits in the printed circuit board 30. A dust jacket 34 igura figure 13  can be placed on one or more of these connection devices. This dust jacket 34 can be composed, for example, of insulating material.

Figure 14 illustrates that the conductive bar 4 can also be configured in one piece with the metal cage, or it may form a part of the metal cage, when it is composed of a good conductive material.

Figure 15 illustrates another weldable variant on a printed circuit board 23, with solder pins 29 and with a shoulder 35 for the fixed retention of an insulating jacket in one of the side walls of the metal cage 5 which also assumes a driving function as a busbar.

Figures 16 and 17 illustrate that instead of pins 29 for welding, fixing pieces 35 of the SMD type [external mounting of the components] can be used, for an SMD type attachment to the printed circuit board (see also figure 17 ).

Figures 18a and b illustrate that the connection device according to the type of Figure 1 can also be placed on a printed circuit board, or on a rib or a conductive rod 44.

Figure 19 illustrates several connection devices aligned one after the other on a printed circuit board, the second longitudinal sides 4b of the conductive bars 4 of the connection devices being connected with one another with a conductive plate 42.

Figure 22 illustrates a terminal in a row with two connection devices 1 that are reduced downwards. It can be well recognized that this terminal in a row is narrower in structure compared to Figure 23 with connection devices 1 that are not reduced according to the type of Figure 1.

Figure 24 shows an embodiment of the invention, in which the clamping spring 3 is stamped on the metal cage, and certainly by cheap and resistant embossments 47 in the area of the longitudinal side 3a that rests on the first wall 5a side. Prints 36, 37 on the second and fourth side wall 5b and 5d, in the corner areas with the first side wall 5a, are not necessary. Another embossing 50 may be provided between the conductive bar 4 and the metal cage 5.

Other prints 48, for example, on the second and / or fourth side wall 5b and 5d in the corner areas with the conductive bar 4, are arranged and folded inward, such that between them and the conductive bar 4 is define an entry and accommodation space 49 for the driver, which facilitates the introduction of the conductor 2, and improves the defined seat of the conductor 2 in the connecting device (Figure 25).

Also according to figures 24 to 26, the snap-shaped joint may be provided according to the type of figure 1a. Alternatively, the second wall 5b bends at its same free end towards the inside of the metal cage 5, as a replacement for the rib 10b of Figure 1, so as to make a particularly safe support area for the flex zone 3c of the clamping spring 3 and, at the same time, close and stabilize the metal cage 5 (figure 26). The nerve 10a can remain but, for example, it collapses inwardly here, simply as a stamping of the upper edge of the wall 5d (Figure 25).

According to Fig. 27a-c, the conductive bar 4 is provided in the direction of its longitudinal extension, in its area turned towards the conductor to be introduced, with a kind of groove or groove 138 that serves to center a conductor to be introduced.

In addition, the clamping side 3b has at its end turned towards the conductive bar 4, two oblique centering points 139, 140, each of which fit into recesses 141, 142 that correspond suitably formed in the corners of the conductive bar 4 ( see also figure 28a).

A conductor 28 to be introduced is centered between the tips 139, 140 centering and the groove 138.

Optionally grooves 143 raised in the conductive bar 4 "arranged in the inlet direction, before and after the recesses 141, 142" can improve the contact of the conductor with the conductive bar 4 (see Figure 29b).

Thanks to the combined action of the tips 139, 140 centered with the groove 138, the conductors are crimped into a particularly large portion of their periphery.

A special advantage is also that not only conductors 28 of different diameters (figures 29a and c) can be connected, but also, in this way, several conductors 28a, b in a single connection device 1 (figures 29b and d). This also clearly simplifies the connection with one or more thin conductors (figures 29a and b).

    List of reference symbols

Connection device 1 Conductor 2 Holding spring 3 Longitudinal sides 3a and 3b Flex zone 3c Conductive bar 4 Contact side 4a Side 4b Metal cage 5 Side walls 5a - 5d Empty 6 Highlight 7 Flex zone 8 Offset 9 Nerve 10 Highlight 11 Bending zone 12 Union 13 Entry opening 14 Flange 15 Screwdriver 16 Terminal box 17 Emptying 18 Entry openings 19, 20 Drive piece 21 Highlight 21 'Slot 22 Printed circuit board 23 Test socket 24 Male plug 25 End 26 Connector auxiliary 27 Conductor 28 Solder pins 29 Plug pins 30 Opening 31 Offset 32 Slot 33 Dust jacket 34 Fixing piece 35 Stamps 36, 37 Marker area 38 Cutout 39 Reductions 40 Openings 41 Plate 42 Highlight 43 Conductive bar 44 Highlight 45 Retention boss 46 Embossing 47 Prints 48 Entrance space 49 Embossing 50 Groove 138 Centering tips 139, 140 Notch s 141, 142 Stretch marks 143

Claims (31)

1. Connection device (1) for a conductor (2), which a) it has a clamping spring (3) and a conductive bar (4) that is arranged in a metal cage (5) that has a polygonal shape in the cross section, with four lateral walls (5a - 5d) , and is open in at least one axial end that configures an inlet opening (14) for the conductor (2), b) with the spring (3) holding two longitudinal sides (3a and 3b) of which one is designed as a clamping side (3b), being oriented relative to each other at an acute angle, and connected to each other by means of a flexion zone (3c), c) the first longitudinal side (3a) of the spring (3) being fixed fastening on the inner face of the first side wall (5a) of the metal cage (5), and supporting sectors directly on the inner side of the side wall (5a), and d) supporting the flexion zone (3c) of the spring (3) of attachment in at least one rib (10a, 10b) formed directly in the metal cage (5), characterized by Orque e) a projection (11) is provided on the inside of one of the side walls (5d) of the metal cage, as a limitation for the deviation of the clamping side (3b), and f) stamping (48) on the second and / or fourth wall (5b and 5d) are arranged in the corner areas with the conductive bar (4), and bent inwards, such that a space (49) is defined between them and the conductive bar (4). ) entrance and accommodation for the driver.

2.

 Connection device according to claim 1, characterized in that a shoulder (7) on the first side wall, which fits into a recess (6), configures a bead (9) for the recess (6).

3.

 Connection device according to one of the preceding claims, characterized in that the conductive bar (4) is configured in an L-shape, and is supported by its contact side (4a) on the inner face of one of the side walls.

Four.

 Connection device according to one of the preceding claims, characterized in that the second side (4b) of the conductive bar (4) covering the axial opening of the metal cage (5), further away from the entrance opening (14), configures a limitation and a stop for the driver (2).

5.

 Connection device according to one of the preceding claims, characterized in that the metal cage (5) is composed of a good conductive metal, such as copper, and assumes a current conduction function.

6.

 Connection device according to one of the preceding claims, characterized in that on the second side wall (5b) and on the fourth side wall (5d) of the metal cage (5), one is formed on each, on the inlet side, one of the nerves (10a, 10b).

7.

 Connection device according to one of the preceding claims, characterized in that the length of the ribs (10) preferably corresponds to half the width of the clamping spring (3), and that the ribs are bent inwards with respect to the planes of the side walls and serve as support for the zone (3c) of flexion of the spring (3) of subjection.

8.

 Connection device according to one of the preceding claims, characterized in that the clamping side (3b) of the clamping spring is flat.

9.

 Connection device according to one of the preceding claims, characterized in that the second longitudinal side is configured in its own direction and, in such a way, configures at least one support for a screwdriver (16) or for a drive part (21), at actuate the clamping spring (3).

10.

 Connection device according to one of the preceding claims, characterized in that the metal cage (5) is formed as a bent piece from a stamped sheet, the two edges of the sheet strip being fitted with one another, by means of a joint (13) of brooch shape.

eleven.

 Connection device according to one of the preceding claims, characterized in that prints (36, 37) on the side walls (5b, 5d) of the metal cage (5), compress the clamping spring (3) against other side walls of the cage (5) metal, and / or because, in an unconnected state, the clamping side (3b) of the clamping spring (3) rests on the conductive rod (4).

12.

 Connection device according to one of the preceding claims, characterized in that the connection device is inserted in a recess (18) of a terminal box (17), being configured in the input direction, emptied (19, 20) for the introduction of a conductor as well as of a screwdriver or of a drive piece in the terminal box, being configured in the terminal box (17), in the input direction,

emptying (19, 19 ’, 20) for the introduction of a driver (2) and / or a screwdriver (16) and / or a drive part (21).

13.

 Connection device according to claims 9 or 12, characterized in that in one of the recesses (19 '), the drive part (21) which acts on the clamping side (3b) is inserted, the drive part (21) acting preferably over the undulating area of the tightening side (3b).

14.

 Connection device according to claims 9 or 12-13, characterized in that the upper face of the piece

(21) of actuation, it is configured widened in such a way that a zone (38) of the marker is configured for the application of a marker, the terminal box (17) being provided with a corresponding recess (39) for the housing of the zone (38) of the marker.

fifteen.

 Connection device according to one of the preceding claims, characterized in that the metal cage (5) is reduced by one or both sides, in the direction of entry.

16.

 Connection device according to one of the preceding claims, characterized in that the clamping spring has, in the area of the support in the terminal box, in the area of the first longitudinal side, a vault (15), or a reduction (40) or openings (41).

17.

 Connection device according to one of the preceding claims, characterized in that the clamping spring (3) thickens in its flexure zone (3c).

18.

 Connection device according to one of the preceding claims, characterized in that the connection device is provided with a test socket.

19.

 Connection device according to one of the preceding claims, characterized in that on the face of the connection device (1), opposite the inlet opening (14), it is formed in the metal cage (5), in the spring (3) of clamping and on the conductive bar (4), another side (5e, 4c and 3d) on each of them, which are bent over each other, being configured between the other side (3d) of the spring and the other side (4c) of the conductive bar (4), a connection possibility for a male plug (25), and serving the side (5e) of the metal cage (5), as a stop for the movement of the side (3d) of the spring.

twenty.

 Connection device according to one of the preceding claims, characterized in that between the flex zone (3c) and one of the side walls of the metal cage (5), an auxiliary connector (27) and / or another conductor (28) can be introduced ).

twenty-one.

 Connection device according to one of the preceding claims, characterized in that in the opposite direction to that of entry, between a bent end (26) of the holding spring (3) and a side wall (5a) of the cage

(5) metal, a conductor and / or a test socket and / or an auxiliary connector (27) can be inserted.

22

 Connection device according to one of the preceding claims, characterized in that pins (29) for welding and / or other plug devices are formed in the metal cage, or because contact zones (35) SMD are formed in the connection device, or because the conductive bars (4) of connecting devices (1) aligned with each other are connected to each other in one piece, depending on the type of a plate (42).

2. 3.

 Connection device according to one of the preceding claims, characterized in that, on the outer face of the metal cage (5), a shoulder (45) is configured which can be engaged in a hollow of a box

(17) of terminals, or other dust jacket.

24.

 Connection device according to one of the preceding claims, characterized in that the clamping spring (3) is stamped on the metal cage, especially by embossing (47) in the area of the longitudinal side (3a) that rests on the first wall ( 5a) lateral.

25.

 Connection device according to one of the preceding claims, characterized in that the second wall (5b) is bent at its free end, towards the inside of the metal cage (5), to make a support area for the flexion zone (3c) of the clamping spring (3).

26.

 Connection device according to claim 24, characterized in that another embossing (50) is provided between the conductive bar (4) and the metal cage (5).

27.

 Connection device (1) according to claim 1 or according to the preamble of claim 1, characterized in that the clamping side (3b) has centering points (139, 140) at its free end.

28.

 Connection device (1) according to claim 27, characterized in that each of the centering points (139, 140), at least in the disconnected state, fits into corresponding recesses (141, 142) suitably formed in the bar (4 ) driver.

29.

 Connection device (1) according to one of the preceding claims, characterized in that the first longitudinal side (3a) of the clamping spring (3) is fixed on the inner face of the first side wall (5a) of the cage

(5) metallic, and is supported by sectors directly on the inner face of the side wall (5a), and the area (3c) of flexion of the clamping spring (3), rests on at least one rib (10a, 10b) formed directly in the metal cage 5 (5). 30. Connection device (1) according to one of the preceding claims, characterized in that the conductive rod (4) is provided in the direction of its longitudinal extension, in its area turned towards a conductor (28) to be introduced, with a groove ( 138), the at least one conductor (28) being able to center between the tips (139, 140) of 10 centered and the groove (138). 31. Connection device according to one of the preceding claims, characterized in that raised grooves (143) are configured in the conductive bar (4), before and after the recesses (141, 142).