EP0805605A1 - Interconnecting device for transmission networks, especially for telephony and data processing - Google Patents

Abstract

The device incorporates the use of metallic contact tabs (14) connected individually to the terminals (15) and slotted (21) for the insertion of electric wires from passages (23) through rotors (22). Associated with each rotor are two terminals, insulated from each other and each connected to two different tabs. The passages through the rotor extend into convoluted projections (30) cantilevered on opposite sides of its central core (31). The flanks (25) of each terminal themselves constitute the corresponding conductors (16) leading from the tabs to the slots.

Description

The present invention relates generally to connection sockets specific to the connection of any receiver on any transmission network, and it relates more particularly, but not necessarily exclusively, to the case of telephone or computer networks on which the currents conveyed are weak currents occurring at very low voltage.

As is known, such a connection socket comprises two conjugated connection members, namely, on the one hand, a base, which is intended to be subjected to any support, for example a wall, and, on the other hand, a plug, which is suitable for being plugged into this base, and which is intended, for its part, to equip the cord of the receiver to be connected.

Overall, such a connection member, whether it is a base or a plug, comprises, on the one hand, for cooperation with the conjugated connection member, contact members, and on the other hand share, in a body of insulating material, connection terminals, which, each individually, are connected to these contact members by electrical conductors, and which, each individually, are intended to receive one of the electrical wires providing the service from the whole.

The present invention more particularly relates to the case where the connection terminals used are insulation displacement connection terminals, that is to say connection terminals ensuring by themselves local elimination of the sheath of insulating material electrical wires to be connected when these electrical wires are insulated electrical wires.

This is the case, for example, in the connection socket which is the subject of the French patent which, filed on February 22, 1993 under No 93 01984, was published under No 2 702 096.

Overall, the insulation displacement connection terminals used each comprise at least one connection member having a slot elongated circularly around an axis, with, coaxially associated with two members of connection staggered circularly around such an axis, a barrel, which, rotatably mounted around this axis, is capable of forcing an electric wire into the slot of each of the connection members, this barrel having, for this purpose, in correspondence with the slot of each of the connection members, a clean passage for the engagement of such an electric wire.

In practice, in the French patent No 93 01984 in question, the two connection members associated with the same barrel are electrically connected to each other, one of them allowing, as indicated above, the connection of one of the electric wires ensuring the service of the whole while the other allows if desired the establishment at this level of any transplanting.

It follows that each of the barrels does not correspond by itself to a single connection terminal, or, in other words, that there are as many barrels as necessary connection terminals.

This arrangement has given and can still give satisfaction.

However, having regard to the relatively large number of barrels to be used, it leads to relatively bulky and costly embodiments.

The present invention generally relates to a provision making it possible to reduce this drawback appreciably and also leading to other advantages.

More specifically, it relates to a connection member, base or plug, for transmission network, of the type comprising, on the one hand, for cooperation with a conjugated connection member, contact members, and, on the other hand, in a body of insulating material, connection terminals which are each individually connected to the contact members by electrical conductors, and which each comprise at least one connection member having a slot elongated circularly about an axis, with , coaxially associated with two connecting members staggered circularly around such an axis, a barrel which, mounted rotatable around this axis, is capable of forcing an electric wire into the slot of each of the connection members, this barrel having for this purpose, in correspondence with the slot of each of the connection members, a passage suitable for the engagement of 'such an electric wire, this connection member being generally characterized in that, for at least one of the barrels used, the two connection members associated with this barrel are isolated from one of the other and are each respectively connected to two different contact members, so that this barrel corresponds by itself to two different connection terminals.

Preferably, this is the case for each of the barrels.

Thus, the number of barrels to be used is overall reduced by half.

This advantageously results in a significant reduction in the overall dimensions of the assembly, and / or a greater facility for the installation of the connection terminals, as well as a significant reduction in costs.

But, for a base, it also results in an appreciable reduction in the risks of crosstalk.

Indeed, in the case of equipment for a telephone network, for example, the two electrical wires of the same pair can advantageously be each respectively connected to two connection terminals very close to one another.

It suffices for this that they are each respectively engaged in the two passages of the same barrel.

Thus, even when these electrical wires are initially twisted to one another to minimize crosstalk, the section along which each must be separated from the other to be connected to a connection terminal advantageously, according to the invention , having regard to the proximity of the two connection terminals concerned, a reduced length, and the risk of a local restoration of this crosstalk, then commonly called crosstalk, linked to this separation, is itself advantageously reduced accordingly.

• la figure 1 est une vue en perspective d'un organe de branchement suivant l'invention ;
• la figure 2 en est une vue en perspective éclatée ;
• la figure 3 en est, à échelle supérieure, une vue en coupe longitudinale, suivant la ligne III-III de la figure 1 ;
• la figure 4 est, à l'échelle des figures 1 et 2, une autre vue en perspective d'une des parties constitutives du corps en matière isolante que comporte cet organe de branchement, représentée isolément, et vue de bout, suivant la flèche IV de la figure 2 ;
• la figure 5 est, à échelle supérieure, une vue partielle en coupe transversale de cette partie, suivant la ligne V-V de la figure 4 ;
• la figure 6 est, à l'échelle des figures 1 et 2, une autre vue en perspective de l'autre des parties constitutives de ce corps en matière isolante, représentée isolément, et vue de dessous, suivant la flèche VI de la figure 2 ;
• la figure 7 est, à échelle supérieure, une vue partielle en coupe transversale de cette partie, suivant la ligne VII-VII de la figure 6 ;
• la figure 8 est une vue en perspective d'un des barillets que comporte également l'organe de branchement suivant l'invention, vu de dessus, suivant la même orientation que celle qui est la sienne sur la figure 2 ;
• la figure 9 est une autre vue en perspective de ce barillet, vu de dessous, suivant la flèche IX de la figure 8 ;
• la figure 10 en est, à échelle supérieure, une vue en coupe axiale, suivant la ligne X-X de la figure 8 ;
• la figure 11 en est une vue en plan, suivant la flèche XI de la figure 10, avec les deux organes de connexion qui lui sont associés ;
• la figure 12 est, à échelle différente, une vue en perspective des flans auxquels appartiennent les divers organes de connexion mis en oeuvre dans l'organe de branchement suivant l'invention ;
• la figure 13 est une vue en perspective d'une partie de ces flans ;
• la figure 14 est une vue en perspective de l'autre partie de ces flans ;
• la figure 15 est une vue en perspective d'un autre organe de branchement suivant l'invention ;
• la figure 16 en est une vue en perspective éclatée ;
• la figure 17 est, à échelle supérieure, une vue en perspective des flans auxquels appartiennent deux des organes de connexion mis en oeuvre dans cet organe de branchement, avec le barillet correspondant.

The characteristics and advantages of the invention will become apparent from the description which follows, by way of example, with reference to the appended schematic drawings in which:

• Figure 1 is a perspective view of a connection member according to the invention;
• Figure 2 is an exploded perspective view;
• Figure 3 is a larger scale, a longitudinal sectional view along the line III-III of Figure 1;
• Figure 4 is, on the scale of Figures 1 and 2, another perspective view of one of the constituent parts of the body of insulating material that includes this connection member, shown in isolation, and end view, according to arrow IV of Figure 2;
• Figure 5 is, on a larger scale, a partial cross-sectional view of this part, along the line VV of Figure 4;
• Figure 6 is, on the scale of Figures 1 and 2, another perspective view of the other of the constituent parts of this body of insulating material, shown in isolation, and viewed from below, according to arrow VI of Figure 2 ;
• Figure 7 is, on a larger scale, a partial cross-sectional view of this part, along the line VII-VII of Figure 6;
• Figure 8 is a perspective view of one of the barrels that also comprises the connection member according to the invention, seen from above, in the same orientation as that which is hers in Figure 2;
• Figure 9 is another perspective view of this barrel, seen from below, according to arrow IX of Figure 8;
• Figure 10 is a larger scale, an axial sectional view along line XX of Figure 8;
• Figure 11 is a plan view, along arrow XI of Figure 10, with the two connection members associated with it;
• Figure 12 is, on a different scale, a perspective view of the blanks to which the various organs belong connection implemented in the branch member according to the invention;
• Figure 13 is a perspective view of part of these blanks;
• Figure 14 is a perspective view of the other part of these blanks;
• Figure 15 is a perspective view of another branch member according to the invention;
• Figure 16 is an exploded perspective view;
• Figure 17 is, on a larger scale, a perspective view of the blanks to which belong two of the connection members used in this connection member, with the corresponding barrel.

FIGS. 1 to 14 relate first of all to the case where the connection member according to the invention is a connection base 10.

As illustrated in these figures, this connection base 10 comprises, overall, and in a manner known per se, in a body 11 made of insulating material, on the one hand, a cell 12, which is suitable for receiving a connection plug 13, partially shown schematically in broken lines in FIG. 3, and in which intervene, for cooperation with the conjugate connection member that constitutes this connection plug 13, contact members 14, and, on the other hand, terminals of connection 15 which, according to arrangements described in more detail later, are each individually connected to the contact members 14 by electrical conductors 16.

This connection base 10 is intended for equipping a transmission network using electrical wires 18.

In the case, for example, of a telephone network, these electrical wires 18 are usually twisted two by two so as to form pairs 19.

In order not to overload the drawings, only one of these pairs 19 of electrical wires 18 is shown in FIG. 1.

For example, four pairs 19 of electrical wires 18 are provided, with, as shown, a double number of connection terminals 15 and contact members 14, on the basis of a connection terminal 15 and a connection member contact 14 by electrical wire 18.

In practice, the electrical wires 18 are insulated electrical wires.

Furthermore, in the embodiment shown, the contact members 14 are metal tongues which extend slightly at an angle in the cell 12.

The foregoing provisions are well known in themselves, and therefore will not be described in more detail here.

In a manner also known per se, the connection terminals 15 are insulation displacement connection terminals. More specifically, these are connection terminals of the type described in the French patent which, filed on November 9, 1987 under No 87 15476, was published under No 2 623 024.

These connection terminals 15 each comprise, overall, at least one connection member 20, having a slot 21 elongated circularly around an axis A, with, associated coaxially with two connection members 20 staggered circularly around such an axis A, a barrel 22, which, rotatably mounted around the axis A, is capable of forcing an electric wire 18 into the slot 21 of each of the connection members 20, this barrel 22 having, for this purpose, in correspondence with the slot 21 of each of the connection members 20, a passage 23 suitable for engaging such an electric wire 18.

Axes A are shown schematically in broken lines in FIGS. 1, 2, 3, 8, 9, 10 and 12, and one of them is identified by its trace in FIG. 11.

According to the invention, for at least one of the barrels 22 used, the two connection members 20 associated with this barrel 22 are isolated from each other and are each respectively connected to two different contact members 14, so that this barrel 22 corresponds by itself to two different connection terminals 15.

Preferably, and as shown, this is the case for each of the barrels 22 used.

In other words, for eight connection terminals 15, there are, according to the invention, only four barrels 22.

In the embodiment shown, and according to the arrangements described in French patent No. 87 15476 mentioned above, the two connection members 20 associated with the same barrel 22 are flat, and they extend transversely with respect to the corresponding axis A.

In practice, these two connection members 20 each belong respectively to two separate metal blanks 25 which form, by themselves, in one piece, the corresponding electrical conductors 16, and, in continuity with these, the contact 14 concerned.

In practice, too, the two connection members 20 associated with the same barrel 22 are arranged in diametrically opposite positions relative to one another around the corresponding axis A.

All the connection members 20 are generally of the same type.

They comprise, for the definition of their slot 21, two lips 26, 27, one of which, the radially innermost lip 26, extends generally circularly, like the slot 21, while the other , the radially outermost lip 27, has a more massive contour.

Preferably, the outlet of the slot 21 of the connection members 20 widens outwards, to facilitate the engagement of an electric wire 18 therein.

The various barrels 22 used are all identical to each other.

They each comprise a head 28, which is cylindrical, with a circular cross section, and which, like a screw head, has, diametrically, on the surface, a groove 29, to facilitate the control in rotation from the whole.

This head 28 also has, in the eccentric position, the two passages 23 each associated respectively with the two connection members 20 concerned.

Like these connection members 20, these passages 23 are arranged in diametrically opposite positions with respect to each other, and, in the embodiment shown, they extend parallel to the corresponding axis A.

For each of the connection members 20 associated therewith, the barrels 22 comprise a bypass spout 30, which is disposed axially at a level below that of these connection members 20, so as to intervene below such a member connection 20, and through which the corresponding passage 23 is extended.

Thus, the barrels 22 each comprise two bypass spouts 30, which, like the connection members 20 and the passages 23, are arranged in diametrically opposite positions relative to each other.

In practice, these bypass spouts 30 extend, radially, cantilevered, back to back, from a central core 31 which extends, itself, axially projecting on the lower surface of the head 28 barrels 22.

The bypass spouts 30 are each respectively separated from this head 28 by a slot 32, which crosses the corresponding passage 23 transversely, and through which the connection member 20 intervenes.

It follows from the above that each of the connection terminals 15 comprises, in the embodiment shown, only one connection member 20, and that these connection terminals 15 are associated in pairs with the barrels 22.

In the embodiment shown, the blanks 25 forming the various connection members 20 are distributed in two layers.

For example, and as shown, between these two layers is interposed locally at a place where the electrical conductors 16 are grouped together in a beam to continuously form the contact members 14, a plate of insulating material 34.

This insulating material plate 34, which is relatively thin and flat, has, in the embodiment shown, Figures 2 and 12, a generally quadrangular outline, and in practice rectangular, and, of course, it is entirely contained in the overall body contour 11.

It is, in practice, beyond this insulating plate 34 that, to extend obliquely in the cell 12, the contact members 14 are bent relative to the blanks 25 to which they belong, forming overall a dihedral with these.

According to an alternative embodiment not shown, each blank 25 is at least locally isolated, either, for example, by being covered, in some of its parts, with an insulating varnish, or by being overmolded, in some of its parts , by insulating synthetic material, and the blanks 25 are then superimposed or assembled.

For example, and as shown diagrammatically in broken lines in FIGS. 13 and 14, the two layers between which the blanks 25 are distributed forming the various connection members 20 have come from cutting two separate strips B1, B2.

To facilitate the joint handling of the blanks 25 thus obtained from the same strip B1, B2, a breakable part thereof, common to all of the blanks 25 concerned, may temporarily remain, on the side, for example, of the corresponding contact members 14, and only be subsequently removed, after individualization of the blanks 25.

In the embodiment shown, the body 11 of the connection base 10 according to the invention comprises two parts 11A, 11B between which are disposed, flat, the blanks 25 forming the various connection members 20, namely, of a on the one hand, a part 11A which receives the blanks 25 and laterally comprises the cell 12, and, on the other hand, a part 11B with the surface of which the connection terminals 15 are accessible to the user.

The part 11A itself comprises, on the one hand, a plate 35, to which the part 11B is superimposed, and, flanking this plate 35 laterally, along one of the edges thereof, a backsplash 36, which is much higher than that of the plate 35, and thanks to which the cell 12 is formed.

In practice, the plate 35 of the part 11A and the part 11B have the same outline, and this outline is rectangular.

The barrels 22 are freely confined for rotation between this plate 35 and this part 11B.

In the embodiment shown, the connection terminals 15, and therefore the barrels 22, are accessible to the user from the side of the part 11B.

More specifically, in this embodiment, the part 11B of the body 11 comprises, in number equal to the barrels 22, housings 37, in which the head 28 of these barrels 22 is rotatably mounted, being axially abutted there by a transverse shoulder 38, and, jointly, the plate 35 of the part 11A of this body 11 comprises, in correspondence, housings 39, in which the circumventional spouts 30 of the barrels 22 are angularly struggled, being axially abutted there by a shoulder 40.

For example, and as shown, the housings 37 and the housings 39 extend at the top of a square.

In the embodiment shown, projections 41 are provided, axially, in diametrically opposite positions relative to one another, in the housings 39, for a limitation of the angular movement, in one direction and in the other, of the barrels 22 .

Furthermore, in this embodiment, at least one of the parts 11A, 11B constituting the body 11, and, in practice, each of these, presents, projecting, on the surface by which it is faced with the other, ribs 42A, 42B ensuring the wedging, and the insulation, of the blanks 25 inserted between them.

For part 11B, two of the ribs 42B also ensure, at their ends, the wedging, and the holding, of the plate of insulating material 34.

In the embodiment shown, the connection terminals 15, and therefore the barrels 22, are accessible to the user on the side of the body 11 opposite the cell 12.

In other words, in this embodiment, the cell 12 opens out on the side of the lower face of the plate 35 of the part 11A of this body 11.

However, as a variant, the connection terminals 15 can just as easily be accessible to the user from the side of the cell 12.

They can also be distributed on one side and the other.

In the embodiment shown, finally, the two parts 11A, 11B constituting the body 11 are secured to one another by simple snap-fastening.

Part 11B comprises, projecting, to do this, along that of its edges by which it is in contact with the backsplash 36 of part 11A, two elastically deformable tabs 43, which are each shaped as a hook, and which, at assembly, are each respectively engaged in two grooves 44 formed for this purpose on this backsplash 36, until they engage with notches 45 provided for this purpose in these grooves 44.

During this mounting, which is done by simple stacking of the part 11A of the body 11, the blanks 25, with, in the embodiment shown, between the two layers that they form, the insulating plate 34, barrels 22, with an oblique presentation of these between the connection members 20 which are associated with them, and of the part 11B of the body 11, as shown diagrammatically by an arrow F1 in FIG. 2.

Alternatively, the two parts 11A, 11B constituting the body 11 can just as well be joined to one another by welding, and / or by crimping.

In service, the connection base 10 according to the invention is normally subject, before or after its wiring, to a support, a wall for example, not shown.

Anyway, when wiring, the two electric wires 18 of the same pair 19 are normally engaged in the two passages 23 of the same barrel 22, as shown for such a pair 19 in FIG. 1.

As shown schematically by an arrow F2 in FIG. 11, this barrel 22 is then rotated around the corresponding axis A, which results in the two electric wires 18 engaged with it being forced to s 'each engage respectively in the slot 21 of the two connection members 20 concerned, which causes the local stripping of these electrical wires 18, by a local displacement of their sheath of insulating material.

By the contact thus established with the lips 26, 27 of the slot 21 in which they are engaged, the two electrical wires 18 thus engaged with the same barrel 22 are then each respectively connected electrically to two different electrical conductors 16, and, therefore, to two contact members 14 which, themselves distinct, each correspond respectively to two different connection terminals 15.

FIGS. 15 to 17 now relate to the case where the connection member according to the invention is a connection plug, and, for example, the connection plug 13 constituting the conjugate connection member associated with the preceding connection base 10.

Like the connection base 10, this connection plug 13 comprises, overall, and in a manner known per se, on the one hand, for cooperation with the conjugate connection member that constitutes the connection base 10, contact members 14 ', Figure 16, and, on the other hand, in a body 11' of insulating material, connection terminals 15 which are each individually connected to the contact members 14 'by electrical conductors 16'.

According to arrangements described in more detail later, the contact members 14 'operate through a tip 50, which protrudes from the body 11', and by which the connection plug 13 is capable of being plugged into the base of connection 10, and, more precisely, in the cell 12 provided for this purpose in this connection base 10.

The connection terminals 15, which, as before, are eight in number, are identical to the connection terminals 15 of the connection base 10.

This is why they are here designated by the same reference as the latter, and it will be the same for all the elements which, from the connection base 10 to the connection plug 13, are identical.

The connection terminals 15 of the connection plug 13 therefore each comprise, as previously, a connection member 20 having a slot 21 elongated circularly around an axis A, with, coaxially associated with two connection members 20 staggered circularly around of such an axis A, being in practice arranged in diametrically opposite positions with respect to each other, a barrel 22, with passages 23 and bypass spouts 30, which, rotatably mounted around the axis A, is capable of forcing an electric wire 18 ′ into the slot 21 of each of the two connection members 20 that it concerns.

According to the invention, and as before, for at least one of the barrels 22 used, and, in practice, for each of these, the two connection members 20 associated with this barrel 22 are isolated one on the other and are each respectively connected to two different contact members 14 ', I so that this barrel 22 corresponds by itself to two different connection terminals 15.

For the eight connection terminals 15 of the connection plug 13, there are therefore, as before, only four barrels 22.

As before, also, the two connection members 20 associated with the same barrel 22 are flat, and they extend transversely relative to the axis A corresponding, each belonging respectively to two metal blanks 25 jointly forming, by themselves, in one piece, the corresponding electrical conductors 16 '.

In the case of a connection plug 13, the blanks 25 forming the various connection members 20 extend, in the embodiment shown, coplanarly, in a single layer.

However, as before, they can, as a variant, be arranged in two layers, and / or be superimposed or assembled, at least one of them then being at least locally isolated as a result.

In the embodiment shown, the contact members 14 'are each formed by a local deformation, generally in a U, of the end of the corresponding electrical conductor 16', FIGS. 16 and 17.

As before, also, the body 11 of the connection plug 13 comprises, in the embodiment shown, two parts 11'A, 11'B between which are disposed, flat, the blanks 25 forming the various connection members 20 , namely, on the one hand, a part 11'A, which, by a plate 35 ', forms a sole, and to which is attached, laterally, in one piece, the end piece 50, and, on the other hand, a part 11'B, which forms a cover, and on the surface of which the connection terminals 15 are accessible to the user.

To receive, in the embodiment shown, the blanks 25, the plate 35 'of the part 11'A comprises, in recess with respect to the surface by which this part 11'A is faced with the part 11'B, housings 54, and, according to arrangements of the same type as the previous ones, the barrels 22 are freely confined for rotation between this plate 35 'and the part 11'B.

As before, the housings 37 'provided for this purpose in the plate 35' of the part 11'A to receive the barrels 22 and those 39 'provided in correspondence in the part 11'B extend at the top of a square.

The end piece 50 internally forms a housing 55 in which the electrical conductors 16 ′ engage, and which, at right of the contact members 14 'carried by them, opens outwards through slots 56, at the rate of one slot 56 per contact member 14', to make these contact members 14 'accessible to the contact members 14 of the conjugate connection member that constitutes the connection base 10.

In the embodiment shown, the slots 56 open on the side of the body 11 on which the part 11B extends thereof.

In other words, in the embodiment shown, the connection terminals 15 of the connection plug 13 are accessible to the user on the side of this body 11 on which the contact members 14 'are themselves accessible to the contact members 14 of the conjugate connection member that constitutes the connection base 10.

However, as before, these connection terminals 15 can be accessible to the user on the opposite side of the body 11, or be distributed on one side and the other of the latter.

As previously, finally, the two parts 11'A, 11'B constituting the body 11 'can be secured to one another by simple snap-fastening, and / or by welding, and, for example, by ultrasonic welding, and / or by crimping.

In the embodiment shown, the housing 55 formed by the endpiece is opened by a notch 58 on the side of the slots 56, and, for its closure, the portion 11'B carries, in correspondence, projecting, a canopy 59.

Of course, the present invention is not limited to the embodiments described and shown, but encompasses any variant.

In particular, there may be provided, if desired, on a connection member according to the invention, any additional connection terminal specific to a connection of this connection member to earth, and it may for example be an insulation displacement connection terminal of the type described and shown or a simple conventional screw connection terminal.

In the case of an insulation displacement connection terminal, it may not be associated with the corresponding barrel only one connecting member.

Furthermore, the electrical conductors intervening between the connection members and the contact members can, if desired, be used to locally create compensation elements, and, in particular, capacitive elements, such as to make it possible to reduce the crosstalk .

Their journey is therefore not necessarily that shown.

In addition, if desired, the barrels used can be provided with markers to identify them.

For example, each of them can be colored in two different colors, for a total of eight colors corresponding to the codes in force in the matter.

On the other hand, for a socket having only four contacts, the plug may for example have only two barrels, according to the invention, at the rate of a barrel for two contacts, but the base may corollarily comprise in a conventional manner a contact barrel, if desired, to enable transplanting.

Finally, whether it is a base or a plug, the connection member according to the invention can, if desired, be at least partially metallized, in order to meet, for example, shielding requirements .

Claims (12)

Connection member for a transmission network, of the type comprising, on the one hand, for cooperation with a conjugated connection member, contact members (14, 14 ′), and, on the other hand, in a body (11, 11 ') in insulating material, connection terminals (15), which are each individually connected to the contact members (14, 14') by electrical conductors (16, 16 '), and which each comprise at least one connection (20) having a slot (21) circularly elongated around an axis (A), with, associated coaxially with two connection members (20) staggered circularly around such an axis (A), a barrel (22) which, rotatably mounted about this axis (A), is capable of forcing an electric wire (18, 18 ') into the slot (21) of each of the connection members (20), said barrel (22) having, at this Indeed, in correspondence with the slot (21) of each of the connection members (20), a passage (23) suitable for the engagement of such an electric wire. e (18), characterized in that, for at least one of the barrels (22) used, the two connection members (20) associated with this barrel (22) are isolated from one another and are each respectively connected to two different contact members (14, 14 '), so that this barrel (22) corresponds by itself to two different connection terminals (15). Connection member according to claim 1, characterized in that the two connection members (20) associated with the barrel (22) are flat, they extend transversely with respect to the corresponding axis (A), and, for each d 'them, the barrel (22) has a bypass spout (30), which is arranged axially at a level below that of the connection members (20), so as to intervene below such a connection member (20 ), and thanks to which the corresponding passage (23) is extended. Connection member according to claim 2, characterized in that the bypass spouts (30) of the barrel (22) extend in a cantilever fashion from a central core (31) which extends axially projecting from the area lower of the head (28) of this barrel (22). Connection member according to any one of claims 2, 3, characterized in that the two connection members (20) associated with the barrel (22) are arranged in diametrically opposite positions relative to each other, and it the same is true for the two passages (23) of this barrel (22) and for its two bypass spouts (30). Connection member according to any one of claims 1 to 4, characterized in that the two connection members (20) associated with the barrel (22) each belong respectively to two separate blanks (25) which form, by themselves, the corresponding electrical conductors (16, 16 '). Connection member according to Claim 5, characterized in that the blanks (25) to which the connection members (20) associated with the barrel (22) belong, also form by themselves the contact members (14, 14 ') concerned. Connection member according to any one of Claims 1 to 6, characterized in that, for each of the barrels (22) used, the two connection members (20) are isolated from each other and are each respectively connected to two different contact members (14, 14 '). Connection member according to any one of claims 5 to 7, characterized in that the body (11, 11 ') has two parts (11A, 11'A - 11B, 11'B), which are secured one to the other. the other, and between which are disposed, flat, the blanks (25) forming the connection members (20), namely, a part (11A, 11'A), which receives the blanks (25), and a part (11B, 11'B) on the surface of which the connection terminals (15) are accessible to the user. Connection member according to claim 8, characterized in that at least one of the parts (11A, 11'A - 11B, 11'B) constituting the body (11, 11 ') projecting from the surface by which it faces the other, ribs (42A, 42B) ensuring the setting of the blanks (25) inserted between them. Connection member according to claim 8, characterized in that, to receive the blanks (25), at least one of the parts (11A, 11'A - 11B, 11'B) constituting the body (11, 11 ') comprises, in an offset from the surface by which it is faced with the other, housings 54. Connection member according to any one of claims 1 to 10, characterized in that, being a connection base (10), the contact members (14) intervene in a cell (12) suitable for receiving a connection plug (13). Connection member according to any one of claims 1 to 11, characterized in that, being a connection plug (13), the contact members (14 ') act by means of a nozzle (50 ), which projects from its body (11 '), and by which this connection plug (13) is capable of being plugged into a connection base (10).

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