FR2815775A1 - Telephone information plug low current modular jack having rapid electrical connections using comb section/teeth and self stripping contacts with removable cover mounted support section pivoting above. - Google Patents

Abstract

The low current modular jack (100) has rapid electrical wire connections (11) using a comb section (110) with teeth (111) defining holders of electrical wire positioning. There are self stripping contacts (132) receiving the wires. The cover is mounted pivoting on the comb section and removable from a support piece (120) which is mounted above the metallic contacts.

Description

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 The present invention relates to a low current socket of the "modular jack" type, such as a telephone or computer socket with means for rapid connection of electrical wires comprising a comb for positioning the wires above the metal insulation-displacement contacts.

 Currently, there are two types of low current socket type "modular jack" using a comb for positioning the electrical wires above the metal insulation displacement contacts.

 The first type of socket comprises a comb fixedly mounted on the socket so that it is integral with the latter.

 In this case, there is provided on the body of the socket one or more covers pivotally mounted, enabling the wires positioned in the comb to be inserted inside the metal insulation displacement contacts.

 The second type of socket, the one to which the present invention belongs, comprises an independent comb mounted in a removable manner on the body of the socket, the operation of mounting the comb on the body of the socket making it possible simultaneously to insert the positioned electrical wires. on the comb in the metal insulation displacement contacts carried by the body thereof.

 The disadvantage of the comb integral with the body of a socket of low currents of the "modular jack" type, is that it leaves little room for the installation of electric wires on the comb, this operation becoming relatively laborious.

 In addition, the effort required to insert the electrical wires into the metal insulation-displacement contacts carried by the body of the plug is relatively large and often involves the auxiliary use of a universal clamp to assist in the introduction of said wires into said contacts.

 The disadvantage of an independent comb mounted removably on the body of the socket for low currents of the "modular jack" type, is that its installation on the body of the socket is relatively difficult and requires considerable effort due to the fact that it also causes the insertion of the wires

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 electrical in the metal insulation displacement contacts carried by the body of said socket.

 In addition, the disconnection of the electrical wires, by removing the positioning comb from the body of the socket, also requires considerable effort, at the risk of damaging the comb and damaging the rewiring of the socket.

 In order to remedy all of the aforementioned drawbacks, the present invention proposes a new low current socket of the "modular jack" type with quick connection means for electric wires, comprising a comb whose teeth define therebetween positioning housings for the electrical wires, metal insulation displacement contacts able to receive the wires positioned in the comb, and at least one pivoting cover capable of covering said comb and of pushing said electrical wires into said metal insulation displacement contacts.

 It is characterized in that said cover is pivotally mounted on the comb which is able to be mounted in a removable manner on a support part of the socket, above the metal insulation-displacement contacts.

 Thus, according to the invention, such a removable comb arrangement, carrying the pivoting cover for introducing electrical wires into the insulation-displacement metal contacts of said socket, makes it possible to dissociate the effort of mounting the comb on the effort socket. introducing electrical wires into the insulation displacement contacts, which makes each dissociated operation easier.

 Other non-limiting and advantageous characteristics of the low current socket of the "modular jack" type according to the invention are as follows: - it comprises a cable clamp attached to the comb at the level of the cable entry; - The cable clamp is mounted on the comb so that the position of said cable clamp is adjustable in height to be adjusted to different cable diameters; - the cable clamp is mounted on the comb via a slide system and notches; - the cable clamp is mounted on the comb by snap-fastening;

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- l'axe de pivotement de chaque couvercle pivotant s'étend parallèlement à la direction longitudinale des logements de positionnement des fils électriques ; les dents du peigne et chaque couvercle pivotant associé présentent un agencement relatif de sorte que la direction de positionnement des fils électriques dans lesdits logements et la direction d'entrée dans le peigne du câble dont sont issus les fils, sont orientées globalement perpendiculairement l'une par rapport à l'autre ; le peigne comprend deux paires de rangées de dents disposées en parallèle de sorte que les logements de positionnement qu'elles définissent sont orientés longitudinalement selon la direction générale de la prise de courant, dans des sens opposés, lesdites paires de rangées de dents étant séparées par une voie centrale d'entrée latérale du câble dont sont issus lesdits fils électriques à connecter, les deux axes de pivotement des couvercles pivotants associés étant situés de part et d'autre de ladite voie centrale d'entrée latérale sur un côté longitudinal du peigne s'étendant selon la direction générale de ladite prise de courant ; le montage à pivotement de chaque couvercle pivotant sur le peigne est un montage par encliquetage à l'aide d'un clip solidaire dudit couvercle ; le montage à pivotement de chaque couvercle pivotant sur le peigne est réalisé par une coopération palier/tourillon ; chaque couvercle pivotant est monté sur une face extérieure dudit peigne, opposée à celle portant lesdites dents, chaque couvercle pivotant portant, sur une face intérieure tournée vers le peigne, au moins une cloison verticale, ledit peigne comprenant, entre deux rangées parallèles de dents, au moins une fente traversante s'étendant transversalement à la direction de positionnement desdits fils dans lesdits logements de positionnement et au travers de laquelle est destinée à s'engager ladite cloison verticale du couvercle pivotant pour pousser les fils électriques positionnés dans lesdits logements du

the pivot axis of each pivoting cover extends parallel to the longitudinal direction of the housings for positioning the electrical wires; the teeth of the comb and each associated pivoting cover have a relative arrangement so that the direction of positioning of the electrical wires in said housings and the direction of entry into the comb of the cable from which the wires originate, are oriented generally perpendicularly one compared to each other; the comb comprises two pairs of rows of teeth arranged in parallel so that the positioning housings which they define are oriented longitudinally in the general direction of the socket, in opposite directions, said pairs of rows of teeth being separated by a central lateral entry channel for the cable from which said electrical wires to be connected come, the two pivot axes of the associated pivoting covers being situated on either side of said central lateral entry channel on a longitudinal side of the comb s 'extending in the general direction of said socket; the pivoting mounting of each pivoting cover on the comb is a snap-on mounting using a clip integral with said cover; the pivoting mounting of each pivoting cover on the comb is achieved by a bearing / journal cooperation; each pivoting cover is mounted on an external face of said comb, opposite to that carrying said teeth, each pivoting cover carrying, on an internal face facing the comb, at least one vertical partition, said comb comprising, between two parallel rows of teeth, at least one through slot extending transversely to the direction of positioning of said wires in said positioning housings and through which is intended to engage said vertical partition of the pivoting cover to push the electric wires positioned in said housings of the

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 comb between the cutting blades of the metal insulation displacement contacts; the comb is secured to the support piece by snap-fastening; the support piece and the comb comprise keying means cooperating with each other to allow only one possible positioning of the comb on the support piece; and the support piece is a housing attached to said socket, comprising an upper opening intended to be covered by said comb, a bottom provided with openings for the passage of the metal insulation-displacement contacts which protrude from said bottom, and side walls longitudinal comprising means for securing said comb.

 The description which follows with reference to the appended drawings, given by way of nonlimiting examples, will make it clear what the invention consists of and how it can be implemented.

 In the accompanying drawings: - Figures 1 to 8 are perspective views of the different stages of wiring a low current socket of the "modular jack" type according to the invention.

 In the figures, a female low current socket 100 of the "modular jack" type has been shown such as a telephone or computer socket intended in particular for establishing the connection between a computer or telephone network and a computer or telephone cable of a particular device.

 This female low current socket 100 of the "modular jack" type comprises a body 130 of insulating material called a "jack" comprising on one side a female inlet mouth (not visible in the figures) intended to receive a male plug (not shown) connected to an output cable usually comprising eight different sheathed electrical wires.

 There are currently three types of cable, the so-called UTP cable comprising eight unshielded electrical wires, the so-called FTP cable comprising eight electrical wires and a shield made by a metal strip surrounding the electrical wires, and the STP cable comprising eight surrounded electrical wires. in pairs of a metal strip, the set of eight wires being further surrounded by a metal braid.

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 In a manner known per se, the body 130 made of insulating material from the female low current socket 100 comprises, at the rear, an opening or window into which a "jack" insert is inserted (not visible in the figures), which is a massive insulating part fitted with grooves receiving the eight metal "jack" contacts.

 These metal "jack" contacts (not shown) are in the form of elastic branches, the end of which, located on the side of the female inlet mouth of the weak current socket, is curved and the other end of which is intended to be inserted in a printed circuit placed above the "jack" insert.

 The curved ends of the eight metal "jack" contacts are complementary and come into contact with the corresponding contacts on the plug (not shown).

 The printed circuit (not shown), located in the body 130 of insulating material, is used to make the electrical link between the metal insulation-displacement contacts 132 that it carries and the "jack" contacts carried by the "jack" insert.

 The self-stripping metal contacts 132 known per se are each in the form of a fork which extends perpendicular to the plane of the printed circuit and which comprises a V-shaped inlet mouth.

 Each fork is fitted with cutting blades to strip the sheathed electrical wires from the input network cable inserted therein.

 The female low current socket 100 of the "modular jack" type, shown in the various figures, further comprises means for quick connection of electrical wires 11 coming from an input cable 10, comprising a positioning comb 110 of said wires 11 above the metal insulation displacement contacts 132.

 Advantageously, according to the invention, the comb 110 is capable of being dismountably mounted on a support part 120 of said female low current socket 100, above the metal insulation-displacement contacts 132.

 This support piece 120 is a housing made of insulating plastic, attached to said socket, and more particularly to the body 130 made of insulating material from said socket. This housing includes an upper opening intended to be covered by said comb 110, a bottom

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 provided with openings for the passage of the metal insulation-displacement contacts 132 which protrude from said bottom, and longitudinal side walls comprising means 122 for securing said comb 110.

 To this end, the longitudinal side walls of the support piece 120 each comprise a notch of substantially rectangular shape with two vertical sides provided with bosses 122.

 The comb 110 comprises, in correspondence, two vertical walls, the vertical end sides of which include recesses 115.

 When mounting the comb 110 on the support piece 120, the vertical walls of the comb 110 carrying the recesses 115 engage in the corresponding notches of the support piece 120, so that the recesses 115 of the comb 110 cooperate with the bosses 122 (see figures 7 and 8).

Thus, the comb 110 is secured to the support piece 120 by snap-fastening.
In addition, advantageously, the support part 120 of the female weak current socket 100 and the comb 110 comprise polarizing means 121, 119 cooperating with each other to allow only one possible positioning of the comb 110 on the support part 120.

 This possible positioning of the comb 110 on the support piece 120 corresponds to a positioning for which the color code of the electrical wires 11 coming from the input cable 10, positioned in the comb 110, is in agreement with the position of the insulation displacement metal contacts 132 from the female low current socket 100.

 The coding means comprise, on the one hand, a vertical tongue 121 projecting from the upper edge of the support piece 120 and, on the other hand, a corresponding notch 119 provided on the horizontal edge of the comb 110.

 When the comb 110 is mounted on the support piece 120, the notch 119 of the comb 110 must engage on the vertical tongue 121 of the support piece 120.

 Opposite the vertical tongue 121, the support piece 120 has, in its upper edge, a recess 123 allowing, after the assembly of the comb 110 on the support piece 120, to slide a tool, such as a screwdriver, to

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 ability to disengage the comb 110 from the support part 120 in the event of disassembly of the female low current socket 100.

 The comb 110 is an independent part which comprises, on an inner face facing the metal insulation displacement contacts, teeth 111 defining between them housings 112 for positioning the electrical wires 11.

 More particularly, the comb 110 comprises two pairs of rows of four teeth 111 arranged in parallel so that they define two pairs of four parallel positioning housings 112 oriented longitudinally in the general direction of the socket. The housings 112 of one pair are oriented in a direction opposite to those of the other pair.

 Thus, as shown more particularly in Figures 3,4 and 5, on the inner face of the comb 110, there are eight housings for positioning the electrical wires 11 coming from the cable 10 distributed in two times four housings defined between two rows of teeth 111 .

 The pairs of rows of teeth 111 are separated by a central lateral entry channel for the cable 10 from which the electrical wires 11 to be connected to the female low current socket 100 originate.

 In addition, on its inner face, the comb 110 comprises vertical studs 114 positioned at the end of the central lateral entry path of the cable 10.

 When the cable 10 has a drain 13 (see FIG. 4), that is to say a shield, as explained above, to ensure ground continuity between the cables connected to the female weak current socket, this drain 13 is passed behind the studs 114 of the comb 110.

 When the comb 110 is placed on the support piece 120, the drain comes into contact with the screen 131 of the socket, which projects through an opening in the bottom of the support piece 120 (see FIG. 4 ).

 The teeth 111 have, on their lateral face, triangular projections (not referenced) and have a slightly conical shape, so that the housings 112 which they define between them have a V shape making it possible to maintain electrical wires 11 of different diameters.

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 On the outer face of the comb 110, opposite to that carrying the said teeth 111, the comb 110 comprises two pivoting covers 116, each pivoting cover 116 being associated with a pair of rows of teeth 111.

 The two pivot axes of the associated pivoting covers 116 are located on either side of the central lateral cable entry channel on a longitudinal side of the comb 110 extending in the general direction of the socket.

 Advantageously, the pivot axis of each pivoting cover extends partially to the longitudinal direction of the associated positioning housings 112. The teeth 111 of the comb 110 and each pivoting cover 116 associated have a relative arrangement so that the direction of positioning of the electrical wires 11 in said housings 112 and the direction of entry into the comb 110 of the cable 10 from which the wires 11 originate. , are oriented generally perpendicular to each other.

 The pivoting mounting of each pivoting cover 116 on the comb 110 is either a snap-on mounting using a clip secured to the cover, or produced by a bearing / journal cooperation 118, as is the case in the mode shown in FIGS. 1 to 8.

 In addition, each pivoting cover 116 carries, on an inner face facing the comb 110, two parallel vertical partitions 117.

 Between two parallel rows of teeth 111, the comb 110 here comprises two through slots 113 extending in parallel transverse to the direction of positioning of the electrical wires 11 in the positioning housings 112, and through which are intended to engage said said vertical partitions 117 of each pivoting cover 116, when the latter is folded down on the comb 110 by pivoting, to position itself on either side of the row of self-stripping metal contacts 132 and push the electrical wires 11 positioned in said housings 112 of the comb 110 between the cutting blades of said self-stripping metal contacts 132 of the female low current socket 100.

 In addition, on this outer face, the comb 110 comprises, at the central lateral entry path of the input cable 10, a cable clamp 140 attached to the comb 110.

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 The cable clamp 140 is mounted on the comb 110 so that its position is adjustable in height to be adjusted to different cable diameters.

 Here, the cable clamp 140 is mounted on the comb 110 by means of a slide system 143 and notches 142.

 More particularly, the slide 143 is defined between two vertical ribs 141 of the comb 110. These vertical ribs 141 comprise, on a face facing the entry of the cable 10, notches intended to cooperate with corresponding notches 142 carried by the clamp cable 140, when the latter is engaged in the slide 143, to maintain the cable clamp 140 in the tight position on the cable 10.

 The cable clamp 140 has an inclined face 144 facing the cable, this inclined face 144 is striated and is intended to hang on the outer insulating sheath of the cable 10 to make it integral with the comb 110. This inclined face 144 of the cable clamp 140 prevents cable 10 from slipping when positioned on the comb.

 According to a variant, not shown, provision could be made to mount the cable clamp 140 on the comb by a latching system at different heights relative to the entry of the cable on the comb.

 With reference to FIGS. 1 to 8, we will now describe how the wiring of the female low current socket 100 according to the invention is made.

 In a first step, shown in FIG. 1, the cable 10 is engaged in the central lateral entry path of the comb 110, and the pivoting covers 116 are raised so as not to hinder the positioning of the electrical wires 11 of the cable 10 in the housing 112 for positioning the comb 110.

 When the cable 10 is engaged in the central lateral entry path of the comb 110, the cable clamp 140 is positioned on the comb by sliding it in the slide 143 so that it comes to pinch the cable 10 in the low position on the comb (see Figure 2).

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 If the low current socket 100 is wired, disassembly of the cable clamp 140 is entirely possible without damaging any part.

 Indeed, by the action of a tool, such as a screwdriver, on the cable clamp, the notched tabs 142 of the cable clamp are deformed, which allows the notches of the cable clamp 140 to be removed from the notches provided. on the ribs 141 of the comb.

 The cable clamp 140 is then free and can be removed from the comb.

 Then, as shown in FIGS. 3 and 4, the eight electric wires 11 coming from the cable 10 are positioned in the housings 112 of the comb 110.

 This positioning of the electrical wires 11 of the cable 10 must be done by respecting the color code. The drain 13 of the cable 10 is passed behind the studs 114 of the comb 110 so that, once the comb 110 is put in place on the support piece 120, it comes into contact with the screen 131 of the "jack" 130 of the socket weak currents female 100.

 Then, as shown in FIG. 5, the ends of the wires 11 of the cable 10 positioned in the housings 112 for positioning the comb 110 are cut as close as possible to the ends of the housings 112 for positioning the comb 110.

 It should be noted that the length of the electrical wires 11 outside the insulating sheath of the cable 10 is then very short, which ensures minimum untwisting of the wires.

 The comb 110 is then ready to be put in place on the support piece 120 through which the insulating metal contacts 132 emerge (see FIG. 6).

 The keying tab 121 of the support piece 120 allows only one direction of mounting of the comb 110 on the support piece 120, that for which the color code of the electrical wires 11 positioned on the comb 110 is in accordance with the position self-stripping metal contacts 132.

 The comb 110 is then snapped onto the support piece 120.

 The opening 123 provided on the support piece 120 subsequently makes it possible to disengage the comb 110 from the support piece 120, using a tool engaged in this opening.

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 When the comb 110 is snapped onto the support piece 120, the electrical wires 11 positioned on the comb 110 are not yet connected (the pivoting covers 116 are still raised), that is to say that the insulation of these wires has not yet been perforated by the metal insulation displacement contacts and the core of each electrical wire 11 is not in contact with the metal insulation displacement contacts 132.

 In fact, the positioning of the comb 110 on the support piece 120 is such that the electrical wires 11 are positioned at the level of the V-shaped inlet mouth of the insulation displacement metal contacts 132, this inlet mouth being sufficiently wide for all of the currently known electric wire diameters can be accommodated there (see Figure 7).

 The effort required to set up the comb 110 on the support piece 120 is relatively low, it is only generated by the cooperation between the bosses 122 and the corresponding notches 115 of the comb 110.

 FIG. 8 shows the socket for weak current currents 100 after the electrical wires 11 have been inserted into the metal insulation-displacement contacts 132.

 This is achieved by pivoting the pivoting covers 116 towards the inside of the comb, so that the vertical partitions 117 of these pivoting covers 116 engage in the through slots 113 of said comb 110.

 During their engagement, the vertical partitions 117 of the pivoting covers 116 are positioned on either side of the insulation displacement metal contacts and push the electrical wires 11 between the cutting blades of said insulation displacement metal contacts 132.

 Each pivoting cover 116 acts on four electrical wires 11, which represents less effort compared to a comb which would connect the eight wires at the same time. In addition, due to the fact that the pivot axis of the pivoting covers 116 is oriented parallel to the longitudinal direction of the housings 112 for positioning the electric wires 11, the force for engaging the electric wires 11 in the metal insulation-displacement contacts 132 is progressive since the pivoting movement of the pivoting covers 116 around their respective pivot axes is such that they act on said wires 11 one after the other.

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 The present invention is in no way limited to the embodiment described and shown, but a person skilled in the art will know how to make any variant in accordance with his spirit.

Claims (14)

 CLAIMS 1. Socket of weak currents of the "modular jack" type (100) with means of quick connection of electric wires (11), comprising a comb (110) whose teeth (111) define positioning housings (112) between them electric wires (11), metal insulation displacement contacts (132) capable of receiving said wires (11) positioned in the comb (110) and at least one pivoting cover (116) capable of covering said comb (110) and of pushing them electric wires (11) in said metal insulation displacement contacts (132), characterized in that said cover (116) is pivotally mounted on the comb (110) which is capable of being dismountably mounted on a support piece (120) of said socket, above said metal insulation displacement contacts (132).  2. Socket according to claim 1, characterized in that it comprises a cable clamp (140) attached to the comb (110) at the cable entry (10).  3. Power outlet according to claim 2, characterized in that the cable clamp (140) is mounted on the comb (110) so that the position of said cable clamp (140) is adjustable in height to be adjusted to different cable diameters.  4. Power outlet according to claim 3, characterized in that the cable clamp (140) is mounted on the comb (110) by means of a slide system and notches.  5. Power outlet according to claim 3, characterized in that the cable clamp (140) is mounted on the comb (110) by snap-fastening.  6. Socket according to any one of claims 1 to 5, characterized in that the pivot axis of each pivoting cover (116) extends parallel to the longitudinal direction of the housings (112) for positioning the electrical wires (11).  7. socket according to claim 6, characterized in that the teeth (111) of the comb (110) and each pivoting cover (116) associated have a relative arrangement so that the direction of positioning of the electric wires (11) in said housings (112) and the direction of entry <Desc / Clms Page number 14>  in the comb (110) of the cable (10) from which the wires (11) originate, are oriented generally perpendicularly to one another.  8. Socket according to claim 7, characterized in that the comb (110) comprises two pairs of rows of teeth (111) arranged in parallel so that the positioning housings (112) which they define are oriented longitudinally along the general direction of the socket, in opposite directions, in that said pairs of rows of teeth (111) are separated by a central lateral cable entry channel (10) from which said electrical wires (11) originate to be connected, and in that the two pivot axes of the associated pivoting covers (116) are located on either side of said central lateral entry path on a longitudinal side of the comb (110) extending in the direction general of said outlet.  9. Socket outlet according to any one of claims 1 to 8, characterized in that the pivoting mounting of each pivoting cover (116) on the comb (110) is a snap-on mounting using a clip integral with said cover.  10. Power socket according to any one of claims 1 to 8, characterized in that the pivoting mounting of each pivoting cover (116) on the comb (110) is achieved by a bearing / journal cooperation.  11. Power socket according to one of claims 1 to 10, characterized in that each pivoting cover (116) is mounted on an outer face of said comb (110), opposite to that carrying said teeth (111), in that each pivoting cover (116) carries, on an inner face facing the comb (110), at least one vertical partition (117), and in that said comb (110) comprises, between two parallel rows of teeth (111), at least one through slot (113) extending transversely to the direction of positioning of said wires (11) in said positioning housings (112) and through which is intended to engage said vertical partition (117) of the pivoting cover (116) for pushing the electric wires (11) positioned in said housings (112) of the comb (110) between the cutting blades of the insulation displacement metal contacts (132). <Desc / Clms Page number 15>  12. Socket according to any one of the preceding claims, characterized in that the comb (110) is secured to the support part (120) by snap-fastening.  13. Socket according to any one of the preceding claims, characterized in that the support piece (120) and the comb (110) comprise polarizing means (121,119) cooperating with each other to allow only a possible positioning of the comb (110) on the support part (120).  14. socket outlet according to any one of the preceding claims, characterized in that the support part (120) is a housing attached to said socket outlet, comprising an upper opening intended to be covered by said comb (110), a bottom provided with openings for the passage of metal insulation displacement contacts which project from said bottom, and longitudinal side walls comprising means for securing said comb (110).