EP0525018B1 - Dispositif permettant la connection/deconnection de cables - Google Patents

Dispositif permettant la connection/deconnection de cables Download PDF

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Publication number
EP0525018B1
EP0525018B1 EP91907679A EP91907679A EP0525018B1 EP 0525018 B1 EP0525018 B1 EP 0525018B1 EP 91907679 A EP91907679 A EP 91907679A EP 91907679 A EP91907679 A EP 91907679A EP 0525018 B1 EP0525018 B1 EP 0525018B1
Authority
EP
European Patent Office
Prior art keywords
contact plate
opening
contact
thrust piece
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91907679A
Other languages
German (de)
English (en)
Other versions
EP0525018A1 (fr
Inventor
Dieter Fremgen
Dieter Adamaszek
Filip Vandeputte
Jan Vansant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Walter Rose GmbH and Co KG
Original Assignee
Walter Rose GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19904012225 external-priority patent/DE4012225C1/de
Priority claimed from GB909026249A external-priority patent/GB9026249D0/en
Application filed by Walter Rose GmbH and Co KG filed Critical Walter Rose GmbH and Co KG
Publication of EP0525018A1 publication Critical patent/EP0525018A1/fr
Application granted granted Critical
Publication of EP0525018B1 publication Critical patent/EP0525018B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base

Definitions

  • This invention relates to a device for disconnectably connecting cable wires to a contact plate, and particularly to such a device designed to engage two different cable wires in a housing of electrically non-conductive material, preferably plastics material, wherein one of the cable wires to be contacted can be brought into contact with the contact plate, preferably, by means of a screw element.
  • An electrical contacting device for connecting cable wires is known, for example, from EP-0 315 345-A2.
  • contact plates are provided in pairs in a plastics housing.
  • the contact plates have metal slots on both sides which, are in the form of cutting blades, and are thus able to cut through the insulating jacket of the cable wire to be contacted and clamp the metallic conductor inside them.
  • An electrical connection is thus made by means of this contact plate between the two contacted cable wires.
  • the idea of such devices is to insert the cable wire to be connected and press it by means of a thrust element between the cutting blades in the contact plate. In the known solution, this is achieved by means of a cap screw with the aid of which cable wires are pressed in pairs into contact plates arranged in pairs.
  • the known solution has a number of advantages, but does involve some disadvantages. As examples the following may be mentioned.
  • DE-A-3216096 discloses a terminal block for telecommunications cable leads which has an electrically conductive screw terminal, mounted in an insulating case.
  • the latter is formed from a contact bridge fixed to the base of the insulating case and from a pressure clamp covering this, which can be displaced by a pressure screw which is fixed in the insulating case in the axial direction but can be rotated with respect to the contact bridge.
  • Both the contact bridge and the pressure clamp have inlet apertures in their legs, which are tangential to one another, with slits continued in the displacement direction and with these slits running in opposite directions in two legs which are tangential to one another.
  • An object of the present invention is to provide a solution which simplifies construction, and which renders possible both testing for contacting and easy removal of a cable wire once contacted should the cable wire have to be replaced.
  • the present invention provides a device for disconnectably contacting and connecting two different cable wires, the device comprising:
  • the device is mounted in a housing of electrically non conductive material.
  • the contact plate is secured non displaceably in the housing.
  • the invention provides a number of advantages compared to the known solution described above. For example it is possible to use simple components, for example rotationally symmetrical components.
  • the through openings in the thrust piece can be used not only for contacting, but also for releasing a cable wire once contacted. This is described in detail hereinafter.
  • the force to be applied in contacting can be controlled in a simple manner, and so on.
  • testing means may be provided to check the electrical contact made.
  • a test vane is provided integrally, but at an angle to the contact plate.
  • one region of the contact plate itself can be used for testing, in which case test bores may be made in parts, for example in screw elements, that are provided electrically connected to the contact plate.
  • the contact plate is preferably provided with locking elements to secure the contact plate in the particular receiving housing.
  • the locking elements are preferably splayed outward in the same plane or folded over at right angles during installation.
  • the thrust piece By providing the thrust piece with a through opening, it is equipped not only with a thrust surface (to urge the cable wire into contact with the contact place), but by reversing the movement (preferably screwing movement) which effected the contact, it is possible to lift a wire that has been pressed into contact, out of contact, thereby releasing the wire.
  • the contact plate comprises a sheet metal vane having toothed outer edges. These toothed edges preferably project through longitudinal slits in a guide cylinder which is provided on, or extends from the thrust piece.
  • a threaded insert element eg a threaded cap is provided which has an internal thread arranged to slide over the guide cylinder and to engage the toothed outer edges of the contact vane.
  • the through opening in the thrust piece is preferably substantially similar in shape and size to the through opening in the contact plate.
  • the through opening provided in the thrust piece is positioned in register with the through opening in the contact plate.
  • a cable wire is inserted into the in-register through openings.
  • the through opening in the thrust piece is moved (preferably downwards) relative to the through opening in the contact plate. This can be done by screwing the threaded insert onto the toothed edges of the contact plate.
  • This relative motion of the through openings in the thrust piece and the contact plate causes edges (preferably the upper edges) of the through opening in the thrust piece to force the cable wire against edges (preferably the lower edges) of the through opening in the contact plate, thereby cutting through any insulation on the cable wire to contact the conductor within.
  • the through openings in the contact plate and the thrust piece are simply moved back into register, for example in the first and second preferred embodiments, by unscrewing the relative threaded elements, causing the lower through opening in the thrust piece to lift the cable wire upwards from its engagement with the contact plate, thus allowing easy withdrawal.
  • This arrangement minimises the possibility of the insulation of the cable wire being trapped by the edges of the contact plate if the cable wire is withdrawn.
  • the through opening in the thrust piece can act both to force the wire into contact with the contact plate, and to release the wire from the contact plate for withdrawal.
  • the through opening in the thrust piece may be provided in a number of configurations. In one embodiment it is provided as a bore through a solid end of the thrust piece. In this case, it acts on the wire on both sides of the contact plate.
  • the through opening in the thrust piece is provided as an aperture in a substantially planar projection at one end of the thrust piece.
  • the aperture in the projection is preferably arranged, in use, to be only behind the corresponding through opening in the contact plate (the word behind being used in relation to the direction of insertion of the cable wire). This arrangement has a number of advantages. For example, it minimises the possibility of the core insulation being trapped within the device if a cable wire is withdrawn. Also it allows easy entry of insulating sealing material, such as gel, around the contacted wire, as described hereinafter.
  • the thrust piece is preferably also equipped with longitudinal guides so it can slide within a housing in the axial direction but cannot rotate.
  • the longitudinal guides on the thrust piece are preferably arranged such that the thrust piece can only be inserted into the device housing in one onentation, viz so that the through opening at the end of the plunger is correctly positioned.
  • the guides on the thrust piece may be channels or ridges, on its outer surface, which mate with corresponding ridges or channels on the inside of the bore of the housing.
  • the thrust piece is preferably provided with an outwardly pointing annular projection at its upper edge towards the guide cylinder, and the threaded insert (fitted over the guide cylinder) is preferably provided with an outwardly pointing annular projection at its lower edge towards the thrust piece.
  • a split clamping ring is then preferably positioned over the annular projections. The plunger and the threaded insert are thus connected to each other so as to be rotatable relative to each other but to be fixed relative to each other in the axial direction. This arrangement facilitates mounting and simplifies manufacture.
  • the thrust piece can be guided to slide in the housing.
  • the split clamping ring comprises a C-shape ring, which is sufficiently resilient to allow the arms of the C to be opened and the ring sprung into position around the outwardly pointing annular projections on the upper edge of the thrust piece, and the lower edge of the threaded insert.
  • the split clamping ring comprises two separate or hinged half shells which can be opened to position the ring around the annular projections, and then closed and held in a closed position by a mechanical retaining means, such as a clip or the like. The latter embodiment is preferred because it avoids the risk of the clamping ring springing open during axial motion of the threaded insert and the plunger.
  • the device may also comprise a cap having a blind bore which, for example, in the first preferred embodiment, described above, can be fitted over the threaded insert so that rotation between the cap and the insert is prevented.
  • the cap preferably comprises an electrically non-conductive material.
  • the cap is provided with a screw head so that a screw driver can be used to tum the cap and hence the threaded insert.
  • a screw head with a blind bore can also be provided in other embodiments.
  • a resilient element such as a spring, is preferably also provided between (i) whatever element is moved to act on the thrust piece, and (ii) the thrust piece.
  • the resilient element is preferably arranged so that it is compressed between (i) the cap (and/or the threaded insert) and (ii) the guide cylinder, when the threaded insert is turned to move the through openings in the contact plate and the thrust piece relative to each other.
  • the resilient element is compressed between the blind end of the cap and the free end (upper end) of the guide cylinder.
  • the guide cylinder has an end portion of smaller cross-section than the remainder of the guide cylinder, so that it presents a shoulder.
  • the resilient element is preferably in the form of a helical spring which fits around the end portion of smaller cross-section of the guide cylinder.
  • the resilient element in this case is thus compressed between (i) the cap and (ii) the shoulder on the guide cylinder.
  • One purpose of the resilient member in the cap is to exert a continual force on the guide cylinder and hence onto the thrust piece, and, in use, an inserted cable wire. This inter alia compensates for changes of pressure in the contact region which may occur after prolonged use, e.g. due to relaxation of the insulation on the cable wire.
  • the contact plate is preferably made from metal, especially preferably from copper.
  • the contact plate is punched from sheet metal.
  • the contact plate contains a through opening, in the form of an aperture in the contact plate, for receipt of a cable wire.
  • the cable wire is forced against an edge of the aperture in the contact plate, causing cable wire to be pinched, and the insulation of the cable wire cut, so that the conductor of the cable wire is in electrical contact with the contact plate.
  • the aperture in the contact plate is preferably prism shaped, that is it has straight edges meeting at corners.
  • the aperture is shaped so that the wire is forced between two straight sides, and then along edges tapering from those straight sides towards each other. Depending on the size of the cable wire, the wire will need to be forced a different distance along those tapered edges of the aperture in order to pierce the insulation and contact the wire.
  • Over pressure of the wire into the aperture may be prevented (i) onto large wires, by tightening to a predetermined tension, and (ii) onto small wires by a physical stop.
  • This physical stop may be, for example, contact of the inside end of the thrust piece against shoulders on the contact blade.
  • the device in order to achieve additional fixing and loading of the inserted cable wires, and particularly applicable where the same device is to be used for contacting small wires (conductor diameter 0.5mm or less) as well as large wires, it is preferred that the device includes a further resilient element which exerts a resilient force onto the cable wire which is additional to the force exerted by the thrust piece and the earlier mentioned resilient member in the cap eg. in the first preferred embodiment, the resilient element in the cap.
  • the further resilient member continues to exert a force onto the cable wire.
  • This further resilient member acts independently of the above earlier mentioned resilient member eg. the resilient member provided in the cap of the device.
  • the further resilient member is an elongate shape, eg in the form of a strip, bar or rod.
  • the elongate shape resilient member may comprise a single length, or may be folded-back onto itself, eg in the manner of a hair grip, to form an elongate "V” or “U” shaped further resilient member with a slot through the "arms" of the "V” or “U”.
  • the further resilient member is preferably arranged at the base of the thrust member. Where a "V” or “"U” shaped further resilient member is used it is preferably arranged at the base of the thrust piece so that the contact plate can slide between the "arms of the "V” or "U”.
  • the further resilient member such as a helical spring is positioned at the base of the threaded insert.
  • a plate is preferably arranged within the cap which abuts the top of the contact plate and hence provided a stop when the threaded insert has been turned a predetermined distance, which is determined such that in that position the further spring is fully compressed.
  • One or more of the guide cylinder, the thrust piece, and the cap if present, preferably comprise a reinforced polymeric material, eg. a polycarbonate material, especially a glass fibre or glass-ball filled polymeric material.
  • a reinforced polymeric material eg. a polycarbonate material, especially a glass fibre or glass-ball filled polymeric material.
  • the device is equipped with a means for testing that a contact has been made between the contact plate and an inserted cable wire.
  • the testing means comprises a test contact vane which is electrically connected to, preferably integrally formed with the contact plate.
  • This additional contact vane is preferably arranged in use so that it is folded substantially at a right angle to the plane of the main vane of the contact plate, with this construction the device housing is preferably provided with a corresponding test bore into which the additional test contact vane extends such that testing of whether an electrical contact exists between the contact plate and the inserted cable wire can be carried out by inserting a testing probe into the testing bore.
  • a testing bore is provided into the cap.
  • the bore in the cap is arranged to allow a test probe to be inserted into electrical contact with the threaded insert in the cap, and hence into electrical contact with the contact plate (since the threaded insert is screwed onto the toothed edges of the contact plate).
  • two or more, more preferably a plurality of contact blades and associated plungers are provided in a common housing.
  • a reservoir for insulating sealing material such as a gel is provided in the housing, especially around the entry regions for the cable or cables.
  • a overflow space is provided in the housing, to allow for displacement of the gel when a cable wire is inserted.
  • the functional behaviour of a gel material means that if the cable wire is withdrawn the gel is dragged back from the overflow space to its sealing position for sealing a newly inserted cable.
  • the contact plate is preferably provided with one or more further apertures to allow easy passage of gel through the contact plate. This ensures that the gel conforms to the surface of the cable wire forming a good seal. and is not hindered in its conformation by the presence of the contact plate.
  • the case is provided with a flexible lip at the point of entry of the cable wire.
  • This lip serves inter alia to prevent or minimise loss of gel from the housing if a cable wire is withdrawn. As the wire is withdrawn the lip is drawn towards the wire, scraping any residual gel from the surface of the wire insulation as the cable wire is withdrawn.
  • the housing is preferably also provided with a stop member arranged to limit the distance of insertion of a cable wire.
  • the invention also provides for the contact elements to be assembled into blocks in a modular design, the individual black modules being so arranged on a mounting plate that the contact opening for the cable wires to be contacted is arranged on one side of the mounting plate whilst the contact plate for the other cable wire contacts, is arranged on the other side of the mounting plate.
  • the contact plate for the other cable wire contacts may be preconnected at the factory, or installed in the field. Where the other cable wire contacts are installed in a factory they may typically be sealed with, for example, a standard potting composition. Where they are installed in the field, they are preferably seated with a gel of the type described hereinbefore.
  • a closure housing which is provided with insulating gel at least in the region of the contact modules.
  • closure flap covering the contact plane, which closure flap is pivotally fastened in turn to the mounting plate and/or to the closure housing.
  • the latter construction makes it possible for the individual planes to be opened at any time by competent persons for work to be carried out, whether it be the plane beneath the mounting plate. for example for the post office or a corresponding authority, or the side above the mounting plate for the end user making a connection.
  • Figure 1 shows a single contact element, generally designated 1, in a so-called exploded view. Considering the drawing from the bottom to the top, there are shown, a thrust piece 3, a resilient element 4, a split clamping ring 5, a screw element 6 and finally an operating screw head 7 which fits over the screw element.
  • the contact plate 2 has a lower blade-like slot 8 for cable wires to be contacted in the housing. Connection to slot 8 may be connected in the factory, or in the field. For cable wires that are to be inserted in the field, for connection to those already contacted, or later to be contacted by slot 8, an inner through-opening 9 is provided in the contact plate 2.
  • the through opening 9 is prism shaped having straight sides 9', extending to tapered edges 9" which taper to a point 10.
  • a cable wire (designated 11 in Fig 3) is inserted, in use, into through opening 9.
  • the contact plate 2 is equipped with a sheet metal vane 12 which is toothed at both outer edges 13, the teeth being adapted to a screw pitch, i.e. two corresponding, substantially mutually opposite teeth exhibit a difference in height that would correspond to a screw turn over a sector of a circle.
  • the contact plate has two opposite, splayed clamping projections 15.
  • a test contact vane 16 is formed on at right angles to the principal plane of the contact plate 2, the tree end 17 of which vane 16 lies, in the mounted position, in the interior of a test bore designated 18 in Figure 4 which in use is filled with an insulating gel.
  • a testing probe is passed through the gel onto the free end 17 of the test contact vane 16 so that a corresponding measurement can then be taken.
  • the thrust piece generally designated 3 has an upper guide cylinder 19 having lateral slots 20 through which the toothed outer edges 13 of the contact plate 2 project in use, as is shown, for example, in Fig 2.
  • an annular projection 21 is provided in the region of transition between the thrust piece 3 and the guide cylinder 19 which is integrally formed thereon.
  • an internal thread, not shown in Fig 1 of a screw element 6 fits over the toothed outer edges 13, in order to create a rotatable, but otherwise fixed, connection between the thrust piece 3 and the screw element 6, the screw element 6 also has an annular projection 22 corresponding to the annular projection 21 on the thrust piece 3, a split clamping ring 5 being arranged over the two annular projections 21 and 22.
  • the screw element 6 is additionally equipped with an operating screw head 7 provided with an inner blind bore, there being provided between the free end, designated 23, of the guide cylinder 19 and the base 39 of the blind bore in the operating screw head 7 an elastic spring element 4 so as to be able to act in the direction of the contact in the event of variations in the contact pressure, eg due to relaxation of the wire insulation.
  • the thrust piece 3 is also equipped with a corresponding through-opening 24. This may likewise have a tapered aperture 25 which, in use, is in register with the through-opening 9 in the contact plate.
  • lateral guide projections 26 are provided.
  • the two screw positions are shown side-by-side in Fig 2.
  • the plastics housing 14 is equipped with entry apertures 27 corresponding to the number of contact elements 1, as shown in Fig 4.
  • the through-opening 9 in the fixed contact plate 2 which is clamped in the housing 14 is substantially in alignment with these entry apertures 27, the latter being larger, however, to allow relative movement of the inserter cable wire 11.
  • the through-opening 24 in the thrust piece 3 is exactly in alignment with the opening 9 in the contact plate 2 in the insertion position of a cable wire. This position is shown on the right in Fig 2.
  • the operating screw head 7 is turned in the opposite direction so that the thrust piece 3 is moved upward. Therewith the pinched cable wire is lifted by means of the aperture 24 in the thrust piece away from the point 10 of the aperture 9 in the contact plate 2 and can subsequently be withdrawn from the device.
  • Figures 5a and 5b shows an alternative embodiment of device according to the invention
  • the thrust piece is lowered in Figure 5a to cause contact, and raised in Fig 5b.
  • This embodiment is similar to that already described with reference to Figures 1 to 4, and like reference numerals are used to indicate like parts in Figures 1 to 4 and Figure 5, with the addition of suffix "a" in Figure 5.
  • Different features in the embodiment of figure 5 are as follows.
  • a testing port 41 is provided in cap 7a. To test whether contact has been made between an inserted cable wire and the contact plate 2a, a test probe is inserted into the test port 41 into electrical contact with the threaded metal insert 6a.
  • the threaded metal insert is in electrical contact with the contact plate 2a, and hence the test probe can be used to check that electrical contact has been made to the contact plate 2a.
  • the spring 4a within the cap is a helical spring which lies over a projection 40 extending from the end of guide cylinder 19a.
  • the projection 40 is of smaller cross-section than the remainder of the guide cylinder and thus the spring abuts against the shoulder existing between the projection 40 and the remainder of the guide cylinder 19a.
  • the spring 4 in the cap 7 described with reference to figures 1-4 was in the form of a resilient rubber ball.
  • the through opening 25 provided at the end of the thrust piece is provided in a substantially planar plate 44, which extends on one side only of the contact plate.
  • the through opening 25, is, as in Figures 1-4, in register with the through opening 9 in the contact plate 2.
  • This arrangement facilitates withdrawal of a cable wire, and also facilitates flow of sealing gel around the cable wire.
  • the contact plate 2 also includes an additional aperture 43 below the through opening 9. This is to make it easier for gel to flow within the housing to conform around the cable wire.
  • an elongate spring 42 comprising a rod folded-back on itself into an elongate "U" shape, in the manner of hair grip, is provided at the bottom of the thrust piece.
  • the elongate spring 42 can be arranged so that it is resiliently deformed by a wire (even a small wire) in this configuration, so that it continues to exert a downward force on an inserted cable wire.
  • the elongate spring 42 acts independently of the spring 4a in cap 7a. Indeed spring 4a is only effective to provide a constant resilient force when the wire is of such a size that the thrust piece 3a is not stopped against the shoulders 45 of the contact plate.
  • Figures 6(a and b) and 7(a and b) show alternalive arrangements for providing a continual pressure on a wire, using a spring which acts independently of any spring in the cap.
  • the "a” figure illustrates installation of the device onto a small diameter cable wire
  • the "b” figure illustrates installation of the device onto a large diameter cable wire.
  • the devices are similar to devices already described, and therefore like reference numerals are used to describe like parts, with an "a" suffix applied for Figures 6 and 7 compared to Figures 1 to 4.
  • the guide cylinder 19 is open at its free end so that the vane 12a of contact plate 2a can pass through it, as shown at 50. Also the shoulders 45 on the contact plate 2 are lowered relative to those in the embodiments of Figures 1-4.
  • a new stop is provided (in place of mating shoulders 45 of the contact plate 2a and internal shoulders 46 of thrust piece 3a). The new stop is provided by a plate 51 and support 52 within the cap which abuts against the top of the cap 7a.
  • the further spring 52 is provided between the annular flange 22 of the threaded insert 6a and the annular flange 21 on the top of thrust piece 3a.
  • the cap is turned until the force reaches a certain limit.
  • both the top spring 4 (in the cap 7) and the further spring 52 exert a permanent force on the wire.
  • the cap 7a is turned until it reaches its physical stop position. ie the top of the metal vane 12 of contact plate 2a abuts plate 51, and the support 53 abuts the top of the inside of cap 7.
  • the spring 4a in cap 7a no longer exerts a continuing pressure.
  • the further spring 52 is fully compressed and therefore exerts a continuing pressure on the small wire.
  • the continuing pressures are desirable in order to maintain continuing contact with the cable wires even if relaxation of the wires causes a change in pressure in the contact region.
  • Figures 7a and b are very simlar to Figures 6a and b respectively except that a physical stop is provided by plate 51 abutting against an internal shoulder 54 in the threaded insert 6a.
  • Figure 8 shows a preferred design of through opening 9 in the contact plate 2.
  • the bottom of the opening opens into a narrow slot 60.
  • This design ensures that for a small diameter cable wire good contact is achieved by the edges 61 of the through opening 9. i.e. those edges between the slot 60 and the main part of the through opening 9.
  • the slot 60 is between 0.1 and 0.45mm wide, preferably about 0.3 mm wide.
  • Figure 9 illustrates a preferred housing that can be used. It is shown, in section, in conjunction with the device of Figure 5. As before like reference numerals designate like parts. Of particular note are the overflow cavity 62 in the housing 4, for flow of the gel (not shown when a wire 11 is inserted. Also lip 63, on the front of the housing, which acts to maintain the gel in the housing if the wire 11 is withdrawn. Backstop 64 is also provided as part of the housing, to limit the distance of insertion of the wire 11. The single aperture 25 in the plate 44 extending at one end of the thrust piece 3, can also be clearly seen in this figure.
  • Figs. 10 and 11 show an assembly of several contacting housings 14 constructed in modular form, but the particular configuration shown is merely an example.
  • contacting housing 14 shown in Figs. 10 and 11 are designated 14'.
  • the individual block modules 14' are arranged in a housing designated 28 overall, a plurality of block modules 14' being screwed to a mounting ptate 29.
  • This mounting plate 29 divides the housing 28 essentially into two regions, the part comprising the contact openings 27' being arranged on the side designated 30 of the mounting plate, whilst the lower part comprising the contact blades 8 and the insertion slots 31 for the further cable wire 11' is arranged on the side designated 32 of the mounting plate 29.
  • the housing 28 has a base plate 33 and a closure housing 34, the individual elements being pivotally attached to one another by an optionally common hinge, as is indicated by broken lines in Fig 10.
  • FIG. 2 A different arrangement for forming a gel reservoir for gel 36 is shown in Figs 2 and 3.
  • a single block module is equipped with a bottom closure cap 37.
  • the contact vane 16 may be angled slightly to provide a large support surtace for a contact point.
  • the corresponding bores 18 for this contact gel may be filled with insulating gel or may be closed mechanically, and so on.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Communication Cables (AREA)
  • Processing Of Terminals (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Cable Accessories (AREA)

Claims (10)

  1. Dispositif (1) permettant la mise en contact et la connexion/déconnexion de deux câbles différents, le dispositif comprenant:
    (a) une plaque de contact (2, 2a) pourvue d'une première ouverture traversante (9, 9a) et d'une deuxième ouverture comprenant une fente (8), destinée à recevoir les câbles;
    (b) une pièce de poussée (3, 3a) qui entoure au moins une partie de la plaque de contact (2, 2a), et qui peut être déplacée longitudinalement sur celle-ci, dans laquelle la pièce de poussée (3, 3a) est également pourvue d'une ouverture traversante (25, 25a) correspondant à, et mobile par rapport à, la première ouverture traversante (9, 9a) de la plaque de contact (2, 2a); et
    (c) un élément à filetage de vis (6, 6a) au moyen duquel un dit câble peut être amené en contact avec la plaque de contact (2, 2a) dans la première ouverture traversante (9, 9a) située dans celle-ci, caractérisé en ce que:
    (d) la première ouverture traversante (9, 9a) est disposée longitudinalement au-dessus de la deuxième ouverture (8);
    (e) la plaque de contact (2, 2a) est pourvue d'une aube en tôle (12) qui fait partie intégrante de la plaque de contact (2, 2a), et qui a des bords externes dentés (13, 13a), qui s'engagent avec l'élément à filetage de vis (6, 6a); et
    (f) la deuxième ouverture traversante (25, 25a) de la pièce de poussée (3, 3a) correspond à la seule première ouverture traversante (9, 9a) de la plaque de contact (2, 2a), et elle est mobile par rapport à la première ouverture traversante (9, 9a) de la plaque de contact (2, 2a), par vissage de l'encart à filetage de vis sur les bords externes dentés (13, 13a) de l'aube de la plaque de contact (2, 2a).
  2. Dispositif (1) selon la revendication 1, comprenant également un carter (14) fait de matière électriquement non conductrice, la plaque de contact (2, 2a) étant de préférence fixée de manière non déplaçable dans le carter (14, 14a).
  3. Dispositif (1) selon la revendication 1 ou 2, caractérisé en ce que:
    (i) un cylindre de guidage (19) est disposé sur la pièce de poussée (3, 3a), le cylindre de guidage ayant des fentes longitudinales (2) à travers lesquelles font saillie les bords externes dentés (13, 13a) de la plaque de contact (2, 2a); et
    (ii) l'élément à filetage de vis (6, 6a) s'ajuste sur le cylindre de guidage (19) pour se mettre en prise avec les bords dentés (13, 13a) de l'aube en tôle (12, 12a).
  4. Dispositif selon l'une quelconque des revendications précédentes, dans lequel une tête de vis fonctionnelle (7, 7a) est prévue, pouvant agir sur la pièce de poussée, et un élément élastique (4, 4a) est également prévu entre la pièce de poussée (3, 3a) et la tête de vis fonctionnelle (7, 7a), de façon que la rotation de la tête de vis entraîne la pièce de poussée par l'intermédiaire de l'élément élastique.
  5. Dispositif selon l'une quelconque des revendications précédentes, comprenant un autre élément élastique (42) qui agit sur un câble inséré dans la direction de la mise en contact, indépendamment de tout élément élastique disposé entre la pièce de poussée et la tête de vis fonctionnelle, telle que définie par la revendication 4, lequel élément élastique exerce de préférence une force continue sur un câble inséré, même après que la pièce de poussée (3, 3a) a été déplacée par rapport à la plaque de contact (2, 2a) pour venir en contact avec, et s'arrêter contre, un épaulement situé sur la plaque de contact (2, 2a).
  6. Dispositif selon l'une quelconque des revendications précédentes, dans lequel la plaque de contact (2, 2a) comprend une ouverture traversante supplémentaire pour permettre le passage d'un matériau d'obturation à travers celle-ci.
  7. Dispositif selon l'une quelconque des revendications précédentes, dans lequel l'ouverture traversante située dans la plaque de contact a généralement une forme de prisme, de façon que l'action de l'élément à filetage de vis (6, 6a) force le fil contre deux bords rectilignes inclinés, et le côté de la première ouverture traversante (9, 9a) de la plaque de contact contre laquelle le fil est forcé est pourvu de préférence d'une fente, de préférence d'un diamètre inférieur à 0,45 mm, s'étendant en s'éloignant de la première ouverture traversante (9, 9a).
  8. Montage comprenant un carter et plusieurs dispositifs selon la revendication 1, dont les plaques de contact (2, 2a) sont disposées chacune dans un carter commun, un réservoir pour un gel isolant étant de préférence affecté, à l'intérieur du carter, aux zones d'entrée pour les câbles.
  9. Montage comprenant plusieurs dispositifs selon l'une quelconque des revendications précédentes, dans lequel les plaques de contact (2, 2a) sont assemblées en blocs (14') selon une conception modulaire, les modules de blocs individuels (14') étant agencés sur une plaque de montage (29) de telle manière que les premières ouvertures traversantes (9, 9a) des plaques de contact (2, 2a) pour les câbles destinés à être insérés en utilisation à travers celles-ci sont agencées sur un premier côté de la plaque de montage (29), tandis que les fentes (8) des plaques de contact (2, 2a) sont agencées sur l'autre côté opposé de la plaque de montage.
  10. Montage selon la revendication 9, caractérisé en ce que le côté opposé de la plaque de montage (29) est recouvert d'un carter de fermeture (33), qui est pourvu d'un gel isolant (30), au moins dans la zone des modules de blocs, et/ou la plaque de montage (29) et le carter de fermeture (33) sont connectés de façon pivotante entre eux et/ou les blocs de modules situés sur le premier côté de la plaque de montage (29) sont recouverts par un rabat de fermeture articulé (34).
EP91907679A 1990-04-14 1991-04-12 Dispositif permettant la connection/deconnection de cables Expired - Lifetime EP0525018B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19904012225 DE4012225C1 (en) 1990-04-14 1990-04-14 Releasable connector for cable leads - includes contact metal gripping two different leads installed in housing of electrically non-conductive material, pref. plastics
DE4012225 1990-04-14
GB909026249A GB9026249D0 (en) 1990-12-03 1990-12-03 Device for disconnectably connecting cable wires
GB9026249 1990-12-03
PCT/GB1991/000584 WO1991016738A1 (fr) 1990-04-14 1991-04-12 Dispositif permettant la connexion/deconnexion de câbles

Publications (2)

Publication Number Publication Date
EP0525018A1 EP0525018A1 (fr) 1993-02-03
EP0525018B1 true EP0525018B1 (fr) 1996-10-02

Family

ID=25892281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91907679A Expired - Lifetime EP0525018B1 (fr) 1990-04-14 1991-04-12 Dispositif permettant la connection/deconnection de cables

Country Status (8)

Country Link
EP (1) EP0525018B1 (fr)
JP (1) JP3101319B2 (fr)
AT (1) ATE143749T1 (fr)
BR (1) BR9106339A (fr)
CA (1) CA2079674C (fr)
DE (1) DE69122503T2 (fr)
NO (1) NO307634B1 (fr)
WO (1) WO1991016738A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3975360A1 (fr) * 2020-09-28 2022-03-30 Danfoss A/S Agencement de soulagement de traction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449299A (en) * 1994-01-24 1995-09-12 Raychem Corporation Telecommunications terminal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216096A1 (de) * 1982-04-30 1983-11-03 Wilhelm Quante Spezialfabrik für Apparate der Fernmeldetechnik GmbH & Co, 5600 Wuppertal Reihenklemme fuer fernmeldekabeladern
GB2133026B (en) * 1982-10-12 1987-02-04 Raychem Corp Apparatus and method for protection of a substrate
US4793822A (en) * 1987-10-28 1988-12-27 Amp Incorporated Screw slot connector
CA1298369C (fr) * 1987-11-06 1992-03-31 George Debortoli Connecteur electrique a piece d'extremite en pointe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3975360A1 (fr) * 2020-09-28 2022-03-30 Danfoss A/S Agencement de soulagement de traction

Also Published As

Publication number Publication date
CA2079674C (fr) 2000-10-24
DE69122503D1 (de) 1996-11-07
JP3101319B2 (ja) 2000-10-23
DE69122503T2 (de) 1997-05-22
WO1991016738A1 (fr) 1991-10-31
NO923968D0 (no) 1992-10-13
EP0525018A1 (fr) 1993-02-03
NO307634B1 (no) 2000-05-02
ATE143749T1 (de) 1996-10-15
JPH05506123A (ja) 1993-09-02
CA2079674A1 (fr) 1991-10-15
BR9106339A (pt) 1993-04-20
NO923968L (no) 1992-12-07

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