EP0911915B1 - Electrical connection terminal and an end piece of a luminescent tube having such a terminal - Google Patents

Electrical connection terminal and an end piece of a luminescent tube having such a terminal Download PDF

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Publication number
EP0911915B1
EP0911915B1 EP19980402550 EP98402550A EP0911915B1 EP 0911915 B1 EP0911915 B1 EP 0911915B1 EP 19980402550 EP19980402550 EP 19980402550 EP 98402550 A EP98402550 A EP 98402550A EP 0911915 B1 EP0911915 B1 EP 0911915B1
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EP
European Patent Office
Prior art keywords
terminal according
nut
shank
terminal
screwthreaded
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
EP19980402550
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German (de)
French (fr)
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EP0911915A1 (en
Inventor
Jérôme Cazeaux
Jean-Marie Depond
Patrick Galibert
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Aupem Sefli SAS
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Aupem Sefli SAS
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Publication date
Application filed by Aupem Sefli SAS filed Critical Aupem Sefli SAS
Priority to EP00121205A priority Critical patent/EP1067631B1/en
Publication of EP0911915A1 publication Critical patent/EP0911915A1/en
Application granted granted Critical
Publication of EP0911915B1 publication Critical patent/EP0911915B1/en
Anticipated expiration legal-status Critical
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    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/32—Conductive members located in slot or hole in screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/02—Single-pole devices, e.g. holder for supporting one end of a tubular incandescent or neon lamp

Definitions

  • the invention relates to electrical connection terminals.
  • terminals that include a threaded rod in which is formed a radial channel crossing it right through, this channel being designed to receive the stripped end of the electrical cable to be connected, a nut being engaged on the threaded rod of the screw to immobilize by tightening the stripped end portion received in the radial channel of the screw.
  • connection terminal electric comprising a body having, from one end, a rod threaded then a first smooth portion whose external diameter corresponds substantially to the external diameter of the thread of the threaded rod and finally a second smooth portion of larger diameter, the connection between the two portions smooth forming a shoulder, an axial drilling being practiced in the rod threaded, this axial bore opening into an inclined bore opening out each of its two ends by a hole, one of which is included in the rod threaded and the other is included in the first smooth portion.
  • the terminal described also includes a nut having an annular collar projecting from a end.
  • the axial hole and the angled hole are designed to receive a electric cable whose stripped end comes out through the hole in the first portion smooth, then is wound on the shoulder existing between the two smooth portions, the portion of the wire thus wound up being tightened by the nut between its end face set back from the collar and shoulder, the collar used to secure the tightness of the connection.
  • the invention aims to improve this kind of connection terminal.
  • an electrical connection terminal comprising a screw having a threaded rod in which is formed a channel adapted to receive an end portion of an electrical cable, and comprising a nut adapted to cooperate with said threaded rod for immobilizing by clamping said end portion received in said channel, with the latter which has an axial section and a radial section which are connected to each other, characterized in that said threaded rod has a groove into which opens said radial section by its zone furthest from the free end of the threaded rod, this groove making it possible to accommodate the piece of cable which leaves the radial section of the channel or which fit into this one.
  • the terminal according to the invention offers increased possibilities of arrangement of the electric cable vis-à-vis the terminal by providing excellent quality support for the end portion of the cable.
  • the groove accommodates the piece of cable that comes out of the section radial of the channel or which enters it, so that the finish is excellent quality, even if the user has stripped the cable a little more large than necessary.
  • said axial section is coaxial with said threaded rod.
  • the cable can be arranged coaxially to the connection terminal and its stripped end portion can come out of the screw through the radial section of the channel and then be surrounded on the outer wall of the screw before being immobilized by tightening by means of the nut.
  • said coaxial section has, from the free end of said threaded rod, at least one portion adapted to receive a non-stripped portion of said cable.
  • the cable is arranged coaxially to the terminal, it it is possible to fit a small non-stripped part of the cable into this channel, which provides excellent cable positioning vis-à-vis the terminal.
  • said coaxial section has a converging portion in which opens out said radial section.
  • This converging part facilitates the passage of the end portion of the cable from the axial part to the radial part or vice versa.
  • said axial section of the channel is offset.
  • the radial section opens out out of the threaded rod through a flat.
  • This flat avoids the sharp edges which would exist at the intersection between a thread and a cylinder opening transversely, these sharp edges being likely to cut the piece of the cable leaving or re-entering the radial section.
  • the screw comprises a shoulder which borders said threaded rod and which is tangent to the part of the lateral surface of the radial section which is furthest from the free end of the threaded rod.
  • This shoulder allows to have directly on the screw of the counter surface on which the nut tightens the cable.
  • said rod and said nut include captive means to prevent releasing the nut vis-à-vis of the stem.
  • these include a member crushed at the free end of said rod.
  • said nut includes means for limiting the torque applied to its tapped part.
  • these include complementary gadroons formed respectively on a nut body on which the tapped part is formed and on a gasket which forms the side wall of the nut, with said body and said packing which are guided in rotation relative to each other but coupled in rotation by the cooperation of said gadroons, at least one of said bodies and lining being adapted to deform to allow their so-called gadroons to slip on each other when a torque greater than a value is exerted predetermined between the trim and the body
  • said threaded rod and said nut comprise means so that the nut is self-locking on the rod.
  • connection terminal which has just been exposed can be used in many areas, for example on loudspeakers and amplifiers of high fidelity channels or so to connect an element luminescent tube terminal to its high power cable voltage.
  • the invention also relates to such a tube end element luminescent, provided with means for connection to an electric cable supply comprising a base attached to a closed end of a envelope that comprises said terminal element and a nut terminal installed in said base, characterized in that said nut terminal conforms to the connection terminal described above.
  • the assembly shown in FIG. 1 comprises a terminal element 1 of luminescent tube, protective cap 2 and power cable electric 3.
  • Element 1 has a glass envelope 4 in the shape of a finger glove with the closed end on the right in figures 1 to 3 and above in the other drawings, connection means 5 to the cable 3, arranged on the closed end of the casing 4, and a metal electrode 6 disposed in the casing 4 and electrically connected to the connection means 5.
  • the end closed of the envelope 4 has a portion 7 of general shape hemispherical whose center connects to a member coaxially oriented having a keel 8 projecting from the inner side and a nipple 9 projecting from the external side, the periphery of the hemispherical portion 7 connecting to the rest of the casing 4, which has a tubular shape with a circular section which goes to the opposite end of the enclosure intended to be connected to the rest of the luminescent tube.
  • a conducting wire 10 comes out of the closed end of the casing 4 at through nipple 9 while inside this nipple this wire is connected electrically to a thinner wire 11 which goes to the keel 8 inside which it is in turn connected to a third electrical wire 12 which extends from wire 11 up to the electrode 6, to which the other end of the wire 12 is welded.
  • connection means 5 comprise an insulating cap 13 and a connection terminal 14 comprising a metal screw 15, a nut 16 and a radial screw hereinafter called threaded pin (17).
  • the base 13 which is here ceramic, has a generally tubular shape with circular section. It is attached by gluing one of its ends to the closed end of the casing 4, with the nipple 9 which is housed in the base 13 and the end of the latter which rests on the hemispherical portion 7.
  • the screw 15 has a foot which is received in the base 13 and which receives the end of the conducting wire 10, and a threaded rod which receives the cable 3, the pin 17 serving to immobilize the conductive wire 10 with respect to the screw 15 and the latter with respect to the base 13, the nut 16 used to immobilize the cable 3 opposite screw 15.
  • a channel is formed in the threaded rod of the screw 15, this channel having a coaxial section 19 and a radial section 20.
  • the cable 3 has been introduced in this channel via the coaxial section 19 to beyond the stripped portion 18, the latter passing through the radial section 20 and surrounding the rod 15, the immobilization having then been carried out by tightening the nut 16.
  • the cap 2 comprises a central body 21, a skirt 22 arranged between the body 21 and the end of the cap which can be seen on the left on the Figures 1 to 3 and below on the other drawings as well as a collar 23 disposed between the body 21 and the end that can be seen at the top in the drawings.
  • the cap 2 is obtained by molding in a single piece of a flexible and elastic plastic material, here silicone.
  • the central body 21 has a generally tubular shape. It has a section 24 with a constant circular section and a frustoconical section 25 connecting on the side of the large diameter to section 24 while on the side of the small diameter it is connected to the neck 23.
  • the lip 26 has two concentric annular portions, respectively a portion 28 thinned which directly borders the opening 27, and a thicker portion 29 which is located between the thinned portion 28 and the rest of the neck 23.
  • the thinning which exists between the portions 29 and 28 is practiced on the internal side, the surfaces external portions 28 and 29 being flush with each other.
  • the skirt 22 has a generally frustoconical shape, which flares out the opposite of the central body 21, its end diameter being slightly more important than that by which it connects to the central body 21.
  • the body 21 has a conformation which allows it to accommodate the connection means 5, that the flexibility and elasticity of the skirt 22 allow it to conform to the external surface of the hemispherical portion 7 at the like a suction cup, and so does the flexibility and elasticity of the lip 26 allow it to be tightened on cable 3.
  • the cap 2 isolates its content from the outside, in a waterproof way, which makes it possible to protect this content from damage likely to be caused by moisture, which is a source of corrosion and electric arc.
  • Figure 8 shows the terminal element 1 and the electrical cable 3 connected to each other in a position where the cable 3 is arranged radially and not coaxially, the cap 2 being replaced by a cap 102 similar, but where the central body 21 is replaced by a central body 121.
  • the cap 102 the same reference numbers as for the cap 2, but increased by the number 100.
  • the central body 121 of the cap 102 has a portion 124 practically identical to the portion 24 of the body 21 of the cap 2, which is in particular tubular with cylindrical section.
  • the 125 portion is similar to portion 25, but it is angled instead of straight, its end which connects to the neck 123 being arranged transversely to its end which connects to section 124, while in portion 25 these two ends are oriented parallel to each other.
  • the skirt 122 and the collar 123 are identical to the skirt 22 and to the collar 23, respectively.
  • connection operation between element 1 and cable 3 as well as the fitting of the cap 102 are similar to the operations required for make the junction in the configuration of figure 3, but the cable 3 is introduced into the channel of the threaded rod of the screw 15 through the radial section 20 of this and the end of the stripped portion 18 is housed in the coaxial section 19 of this channel.
  • the screw 15 includes a threaded rod 30 intended to receive the cable 3 and immobilize it in cooperation with the nut 16, as well as a foot 31 intended to be received in the base 13 and to receive the wire conductor 10 and a portion of pin 17.
  • the channel formed in the threaded rod 30 has a section 19 coaxial with the screw 15 and a radial section 20, the sections 19 and 20 connecting to each other.
  • the section 19 has, from the free end of the rod 30, a portion of cylindrical shape having a diameter large enough to receive a non-stripped part of the cable 3, as shown in Figure 3, the section 19 having, beyond this cylindrical part, a conical part into which opens the radial section 20, which is cylindrical and of diameter smaller than the cylindrical part of the coaxial section 19, only a part stripped 18 of the cable 3 having to pass through the radial section 20.
  • the latter opens, by its zone furthest from the free end of the rod 30, in a groove 32 formed in the rod 30, the groove 32 being provided to accommodate the piece of part 18 of cable 3 which comes out through the section radial 20 (configuration of FIG. 3) or enter it (configuration of the figure 8).
  • the section 20 is tangent, by the part of its lateral surface most remote from the free end of the rod 30, to a shoulder 33 which comprises the screw 15, the nut 16 being provided to tighten against the shoulder 33 the piece of part 18 housed in the groove 32, as shown in Figures 3 or 8.
  • the rod 30 has a threaded portion 34 which extends only over a certain length from the free end of this rod, the latter having between the shoulder 33 and the threaded part 34 a smooth external surface whose overall diameter is slightly less than the bottom diameter of the portion 34, for reasons of cooperation with the nut 16, explained below.
  • the foot 31 of the screw 15 has a generally cylindrical outer shape of diameter slightly greater than the threaded part 34 of the screw 15.
  • a hollow 35 of frustoconical shape is managed which converges, from an opening with a diameter slightly smaller than that of the base 31, towards a blind hole oriented coaxially, of much smaller diameter.
  • a tapped hole 37, oriented radially, is arranged just below the radial section 20, and extends between the hole 36 and the outside of the foot 31.
  • the hole 36 serves to accommodate the end of the conductive wire 10, the tapped hole 37 to receive the threaded pin 17, and the hollow 35 is used to guide the end of the wire 10 towards the hole 36 and to receive the end of the nipple 9.
  • a small parallelepipedic notch 38 is formed under the orifice outlet from the tapped hole 37. It is designed to cooperate with a lug provided on the base 13, in order to position the screw 15 in the required angular position to be able to fit the pin 17.
  • the nut 16 has externally a longitudinal knurling 39 for facilitate its handling.
  • the nut 16 On the internal side, the nut 16 has a groove 40 of diameter slightly larger than the bottom diameter of the thread 41 which is found on either side of the groove 40, this thread extending over a very short length on the side which is below the groove 40 in the figure 11, and over a greater length of the side which is above.
  • the length over which the groove 40 extends is slightly greater than that of the threaded part 34 of the screw 15.
  • the nut 16 is put in place on the screw 30 by presenting it on this last with the side that we see at the bottom in figure 11 which meets the first the threaded portion 34, the small portion of the thread 41 is engaged we see under the groove 40 in engagement with the threaded portion 34, we continue the screwing the nut 16 until the threaded part 34 is in the groove 40, and the portion of the thread 41 which is seen is slightly engaged above the groove 40 with the threaded part 34.
  • the groove 40 serves to avoid unintentionally releasing the nut 16 from the rod 30, and thus limits the risk of losing this nut: in fact, when the part of the thread 41 which can be seen above the groove 40 ceases to be engaged with the threaded part 34, to continue unscrewing the nut 16, engage the part of the thread 41 that can be seen under the groove 40, which requires precise positioning of the nut 16 with respect to the part 34, which has very unlikely to happen spontaneously, nut 16 turning rather crazy with the threaded part 34 which is housed in the groove 40.
  • Figures 12 and 13 show a variant 115 of the screw 15, the Figures 14 and 15 a variant 116 of the nut 16 and Figure 16 a variant 101 of the terminal element 1, the connection terminal 114 of the element 101 comprising the screw 115 and the nut 116.
  • the same numerical references but increased by the number 100.
  • the threaded rod 130 of the screw 115 differs from the rod 30 of the screw 15 by the fact that the threaded portion 134 extends practically from the free end of the rod 130 to the groove 132, a small coaxial collar 43 of low thickness being provided between the end of the threaded portion 134 and the free end of the rod 130, the collar 43 having an external diameter slightly less than that of the bottom diameter of the threaded portion 134.
  • the rod 130 is distinguished also of the rod 30 by the fact that a flat 44 is formed at the outlet on the exterior of the radial section 120.
  • the flange 43 is intended to be crushed once the nut 116 has been placed on the threaded portion 134, so avoid that this nut can be removed from the threaded part 134 and risk being lost.
  • the flat 44 serves to avoid the existence of sharp edges likely to degrade the part 18 of the cable 3 located near the outlet of the section radial 120, sharp edges which would exist in the absence of the flat 44.
  • the foot 131 of the screw 115 is distinguished from the foot 31 of the screw 15 by the instead of having a single outer diameter, it has a 45 part large diameter and part 46 of small diameter, part 45 being between the shoulder 133 and the part 46, the latter being between the part 45 and the free end of the foot 131.
  • the foot 131 is also distinguished from the foot 31 by the fact that the notch 38 is replaced by a flat 47 made in the portion 45 with the same centering as the section 120 and the tapped hole 137.
  • the shoulder 48 which exists because of the difference in diameter between the portions 45 and 46, bears on the end of base 113 which replaces base 13 in the end element of the tube luminescent 101, the existing hollow due to the flat 47 receiving a redent 49 of positioning provided on the end of the base 113 opposite to that by which it is attached to the glass envelope 104.
  • the nut 116 comprises a metal body 50 and a gasket 51 in plastic material.
  • the body 50 has internally a threaded portion 52 which ends on the side we see at the bottom with a chamfer 53 and on the side we see at the top by a frustoconical portion 54 which makes the junction between the part tapped 52 and a relatively thin annular portion 55.
  • the body 50 has, approximately at mid-height, a groove 56 with semi-circular profile and, under groove 56, gadroons 57 which give the body 50, at their level, as seen in FIG. 15, a profile corrugated external.
  • the lining 51 has a corresponding internal conformation generally to the external conformation of the body 50.
  • the lining 51 has a spout 58 which is housed in a chamfer external of the body 50, a series of gadroons 59 of a shape such as the hollow between two gadroons 59 receives a gadroon 57 from the body 50 while the hollow between two gadroons 57 receives a gadroon 59 of the lining 51 (see FIG. 15), a annular bead 60 with semicircular section engaged in the groove 56, and a annular return 61 with a U-shaped profile which borders the annular portion 55 of the body 50 on its three sides.
  • the lining 51 is snap-fitted on the body 50. It is there maintains thanks to the return 61 and the spout 58. It is guided in rotation with respect to the body 50 in particular by the cooperation of the portion 55 and the return 61, of the groove 56 and bead 60 as well as spout 58 with the chamfer corresponding, but the rotation is stopped by the cooperation of the gadroons 57 and 59, unless a torque is exerted on the lining 51 so that the lining can be deform so that there is a slip between the gadroons of the body and those of the garnish.
  • the nut 116 makes it possible to limit the tightening torque which it is possible to exert by means of this nut 116, this which has the advantage of preventing the portion from being over-tightened stripped 18 of cable 3 with the nut to the point of cutting this portion.
  • the variant 201 of the terminal element shown in FIG. 17 is similar to item 101, but screw 115 is replaced by screw 215 shown in Figures 18 and 19.
  • screw 115 is replaced by screw 215 shown in Figures 18 and 19.
  • element 201 and for screw 215 the same reference numbers as for element 1 and screw 15, but plus the number 200.
  • the axial part of the channel for receiving a portion end of the cable 3 is formed by four sections 219A, 219B, 219C and 219D, axially oriented but offset and open laterally through the threaded portion 234 of the rod 230 of this screw, and the radial part of the channel reception is formed by two radial sections 220A and 220B leading to each end in a respective axial section.
  • the radial section 220A opens respectively in the axial section 219A and in the axial section 219C while the section radial 220B opens respectively into the axial section 219B and into the axial section 219D.
  • the threaded portion 234 of the rod 230 extends from the free end of the rod 230 to groove 232, the threaded portion 234 being designed to cooperate with a nut such as nut 116, as shown in Figure 17.
  • the foot 231 of the nut 214 is similar to the foot 31, but has excavations 62A, 62B, 62C and 62D which respectively extend the sections 219A to 219D of the rod channel 230.
  • connection terminals 14, 114 or 214 are likely to be implemented in the other terminals.

Description

L'invention a trait aux bornes de raccordement électriques.The invention relates to electrical connection terminals.

On connaít déjà de telles bornes qui comportent une tige filetée dans laquelle est ménagée un canal radial la traversant de part en part, ce canal étant prévu pour recevoir l'extrémité dénudée du câble électrique à raccorder, un écrou étant engagé sur la tige filetée de la vis pour immobiliser par serrage la portion d'extrémité dénudée reçue dans le canal radial de la vis.We already know such terminals that include a threaded rod in which is formed a radial channel crossing it right through, this channel being designed to receive the stripped end of the electrical cable to be connected, a nut being engaged on the threaded rod of the screw to immobilize by tightening the stripped end portion received in the radial channel of the screw.

On connaít également, par DE 69 937 C, une borne de raccordement électrique comportant un corps présentant, à partir d'une extrémité, une tige filetée puis une première portion lisse dont le diamètre externe correspond sensiblement au diamètre externe du filet de la tige filetée et enfin une deuxième portion lisse de plus grand diamètre, le raccordement entre les deux portions lisses formant un épaulement, un perçage axial étant pratiqué dans la tige filetée, ce perçage axial débouchant dans un perçage incliné débouchant à chacune de ses deux extrémités par un trou dont l'un est compris dans la tige filetée et l'autre est compris dans la première portion lisse. La borne décrite comporte également un écrou présentant un collet annulaire en saillie à une extrémité. Le perçage axial et le perçage incliné sont prévus pour recevoir un câble électrique dont l'extrémité dénudée sort par le trou de la première portion lisse, puis est enroulée sur l'épaulement existant entre les deux portions lisses, la portion du fil ainsi enroulé étant serrée par l'écrou entre sa face d'extrémité située en retrait par rapport au collet et l'épaulement, le collet servant à assurer l'étanchéité de la connexion.We also know, from DE 69 937 C, a connection terminal electric comprising a body having, from one end, a rod threaded then a first smooth portion whose external diameter corresponds substantially to the external diameter of the thread of the threaded rod and finally a second smooth portion of larger diameter, the connection between the two portions smooth forming a shoulder, an axial drilling being practiced in the rod threaded, this axial bore opening into an inclined bore opening out each of its two ends by a hole, one of which is included in the rod threaded and the other is included in the first smooth portion. The terminal described also includes a nut having an annular collar projecting from a end. The axial hole and the angled hole are designed to receive a electric cable whose stripped end comes out through the hole in the first portion smooth, then is wound on the shoulder existing between the two smooth portions, the portion of the wire thus wound up being tightened by the nut between its end face set back from the collar and shoulder, the collar used to secure the tightness of the connection.

L'invention vise à perfectionner ce genre de borne de raccordement.The invention aims to improve this kind of connection terminal.

Elle propose à cet effet une borne de raccordement électrique, comportant une vis présentant une tige filetée dans laquelle est ménagé un canal adapté à recevoir une portion d'extrémité d'un câble électrique, et comportant un écrou adapté à coopérer avec ladite tige filetée pour immobiliser par serrage ladite portion d'extrémité reçue dans ledit canal, avec ce dernier qui présente un tronçon axial et un tronçon radial qui se raccordent l'un à l'autre,
caractérisé en ce que ladite tige filetée présente une gorge dans laquelle débouche ledit tronçon radial par sa zone la plus éloignée de l'extrémité libre de la tige filetée, cette gorge permettant de loger le morceau du câble qui sort du tronçon radial du canal ou qui rentre dans celui-ci.To this end, it proposes an electrical connection terminal, comprising a screw having a threaded rod in which is formed a channel adapted to receive an end portion of an electrical cable, and comprising a nut adapted to cooperate with said threaded rod for immobilizing by clamping said end portion received in said channel, with the latter which has an axial section and a radial section which are connected to each other,
characterized in that said threaded rod has a groove into which opens said radial section by its zone furthest from the free end of the threaded rod, this groove making it possible to accommodate the piece of cable which leaves the radial section of the channel or which fit into this one.

Grâce à un canal ainsi agencé, la borne selon l'invention offre des possibilités accrues de disposition du câble électrique vis-à-vis de la borne tout en offrant un maintien d'excellente qualité de la portion d'extrémité du câble.Thanks to a channel thus arranged, the terminal according to the invention offers increased possibilities of arrangement of the electric cable vis-à-vis the terminal by providing excellent quality support for the end portion of the cable.

La gorge permet de loger le morceau du câble qui sort du tronçon radial du canal ou qui rentre dans celui-ci, de sorte que la finition est d'excellente qualité, même si l'utilisateur a dénudé le câble sur une longueur un peu plus grande que nécessaire.The groove accommodates the piece of cable that comes out of the section radial of the channel or which enters it, so that the finish is excellent quality, even if the user has stripped the cable a little more large than necessary.

Dans un premier mode de réalisation préférée, ledit tronçon axial est coaxial à ladite tige filetée.In a first preferred embodiment, said axial section is coaxial with said threaded rod.

Dans ce mode de réalisation, le câble peut être disposé coaxialement à la borne de raccordement et sa portion d'extrémité dénudée peut sortir de la vis par le tronçon radial du canal et être ensuite entourée sur la paroi externe de la vis avant d'être immobilisée par serrage au moyen de l'écrou.In this embodiment, the cable can be arranged coaxially to the connection terminal and its stripped end portion can come out of the screw through the radial section of the channel and then be surrounded on the outer wall of the screw before being immobilized by tightening by means of the nut.

On bénéficie ainsi à la fois de la possibilité de disposer le câble coaxialement à la borne et des qualités d'un raccordement effectué par un élément de vissage, et ceci avec une finition d'excellente qualité puisque l'on peut entièrement éviter une sortie du câble hors de la borne de raccordement au niveau de la zone de serrage au moyen de l'écrou.We thus benefit both from the possibility of placing the cable coaxially to the terminal and qualities of a connection made by a screwing element, and this with an excellent quality finish since can completely prevent the cable from coming out of the connection terminal level of the tightening zone by means of the nut.

Il est également possible, dans ce mode de réalisation, de disposer le câble électrique radialement, en faisant rentrer la portion d'extrémité du câble par le tronçon radial du canal et en logeant l'éventuel surplus de cette portion d'extrémité dans le tronçon axial.It is also possible, in this embodiment, to arrange the electric cable radially, by bringing in the end portion of the cable by the radial section of the channel and by accommodating the possible surplus of this portion end in the axial section.

Selon des caractéristiques préférées de ce premier mode de réalisation, ledit tronçon coaxial présente, à partir de l'extrémité libre de ladite tige filetée, au moins une portion adaptée à recevoir une partie non dénudée dudit câble.According to preferred characteristics of this first mode of embodiment, said coaxial section has, from the free end of said threaded rod, at least one portion adapted to receive a non-stripped portion of said cable.

Ainsi, dans le cas où l'on dispose le câble coaxialement à la borne, il est possible de faire rentrer une petite partie non dénudée du câble dans ce canal, ce qui offre un excellent positionnement du câble vis-à-vis de la borne. Thus, in the case where the cable is arranged coaxially to the terminal, it it is possible to fit a small non-stripped part of the cable into this channel, which provides excellent cable positioning vis-à-vis the terminal.

Selon d'autres caractéristiques préférées de ce premier mode de réalisation, ledit tronçon coaxial présente une partie convergente dans laquelle débouche ledit tronçon radial.According to other preferred characteristics of this first mode of embodiment, said coaxial section has a converging portion in which opens out said radial section.

Cette partie convergente facilite le passage de la portion d'extrémité du câble de la partie axiale à la partie radiale ou inversement.This converging part facilitates the passage of the end portion of the cable from the axial part to the radial part or vice versa.

Dans un deuxième mode de réalisation préféré, ledit tronçon axial du canal est excentré.In a second preferred embodiment, said axial section of the channel is offset.

Selon des caractéristiques préférées de ce deuxième mode de réalisation, notamment pour des questions de commodité tant à la fabrication qu'à l'emploi :

  • ledit tronçon axial du canal s'ouvre au travers de la paroi latérale de la tige filetée ;
  • ledit canal présente plusieurs tronçons axiaux excentrés similaires régulièrement répartis sur le plan angulaire ;
  • ledit tronçon axial excentré se prolonge dans un pied que comporte ladite vis au-delà de ladite tige filetée ; et/ou
  • ledit canal présente quatre tronçons axiaux excentrés et deux tronçons radiaux dont chacun débouche à chaque extrémité dans un tronçon axial respectif.
According to preferred characteristics of this second embodiment, in particular for reasons of convenience both in manufacturing and in use:
  • said axial section of the channel opens through the side wall of the threaded rod;
  • said channel has several similar eccentric axial sections regularly distributed on the angular plane;
  • said eccentric axial section is extended in a foot that includes said screw beyond said threaded rod; and or
  • said channel has four eccentric axial sections and two radial sections, each of which opens at each end into a respective axial section.

Selon d'autres caractéristiques préférées, le tronçon radial débouche hors de la tige filetée au travers d'un méplat.According to other preferred characteristics, the radial section opens out out of the threaded rod through a flat.

Ce méplat évite les arêtes acérées qui existeraient à l'intersection entre un filet et un cylindre débouchant transversalement, ces arêtes acérées étant susceptibles de couper le morceau du câble sortant du ou rentrant dans le tronçon radial.This flat avoids the sharp edges which would exist at the intersection between a thread and a cylinder opening transversely, these sharp edges being likely to cut the piece of the cable leaving or re-entering the radial section.

Selon d'autres caractéristiques préférées, la vis comporte un épaulement qui borde ladite tige filetée et qui est tangent à la partie de la surface latérale du tronçon radial qui est la plus éloignée de l'extrémité libre de la tige filetée.According to other preferred characteristics, the screw comprises a shoulder which borders said threaded rod and which is tangent to the part of the lateral surface of the radial section which is furthest from the free end of the threaded rod.

Cet épaulement permet de disposer directement sur la vis de la contre-surface sur laquelle l'écrou effectue le serrage du câble. This shoulder allows to have directly on the screw of the counter surface on which the nut tightens the cable.

Selon d'autres caractéristiques préférées, ladite tige et ledit écrou comportent des moyens d'imperdabilité pour interdire de libérer l'écrou vis-à-vis de la tige.According to other preferred characteristics, said rod and said nut include captive means to prevent releasing the nut vis-à-vis of the stem.

Dans un premier mode de réalisation des moyens d'imperdabilité, ceux-ci comportent :

  • sur la tige, une partie de diamètre externe plus petit que le diamètre à fond de filet de la partie filetée, cette dernière s'étendant entre l'extrémité libre de la tige et la partie de diamètre externe plus petit, sur une longueur prédéterminée ; et
  • sur l'écrou, une gorge pratiquée dans le taraudage, ladite gorge ayant un diamètre supérieur au diamètre à fond de filet du taraudage et ayant une longueur supérieure à la longueur de la partie filetée de la tige.
In a first embodiment of the capturing means, these comprise:
  • on the rod, a part of external diameter smaller than the diameter at the bottom of the thread of the threaded part, the latter extending between the free end of the rod and the part of smaller external diameter, over a predetermined length; and
  • on the nut, a groove formed in the thread, said groove having a diameter greater than the diameter at the bottom of the thread of the thread and having a length greater than the length of the threaded part of the rod.

On observera que de tels moyens d'imperdabilité conviennent également pour d'autres types de systèmes à vis et écrou que les bornes de raccordement électriques.It will be observed that such means of imperceptibility are suitable also for other types of screw and nut systems than the electrical connections.

Dans un deuxième mode de réalisation préféré des moyens d'imperdabilité, ceux-ci comportent un membre écrasé à l'extrémité libre de ladite tige.In a second preferred embodiment of the means of imperdability, these include a member crushed at the free end of said rod.

Selon d'autres caractéristiques préférées, ledit écrou comporte des moyens pour limiter le couple appliqué à sa partie taraudée.According to other preferred characteristics, said nut includes means for limiting the torque applied to its tapped part.

Selon un mode de réalisation préféré des moyens pour limiter le couple, ceux-ci comportent des godrons complémentaires ménagés respectivement sur un corps d'écrou sur lequel est ménagé la partie taraudée et sur une garniture qui forme la paroi latérale de l'écrou, avec ledit corps et ladite garniture qui sont guidés en rotation l'un par rapport à l'autre mais accouplés en rotation par la coopération desdits godrons, au moins l'un desdits corps et garniture étant adapté à se déformer pour permettre à leurs dits godrons de glisser les uns sur les autres lorsqu'il s'exerce un couple supérieur à une valeur prédéterminée entre la garniture et le corpsAccording to a preferred embodiment of the means for limiting the couple, these include complementary gadroons formed respectively on a nut body on which the tapped part is formed and on a gasket which forms the side wall of the nut, with said body and said packing which are guided in rotation relative to each other but coupled in rotation by the cooperation of said gadroons, at least one of said bodies and lining being adapted to deform to allow their so-called gadroons to slip on each other when a torque greater than a value is exerted predetermined between the trim and the body

Ainsi, lorsque le couple limite est dépassé, il y a désacouplement entre la garniture et le corps de sorte qu'aucun couple supérieur au couple limite n'est transmis à la partie taraudée de l'écrou.Thus, when the limit torque is exceeded, there is uncoupling between the lining and the body so that no torque greater than the limit torque is only transmitted to the threaded part of the nut.

De préférence :

  • ledit corps est métallique et ladite garniture en matière plastique ;
  • ledit corps et ladite garniture comportent pour l'un une gorge annulaire et pour l'autre un bourrelet annulaire complémentaires ; et/ou
  • ledit corps et ladite garniture comportent des moyens d'assemblage l'un à l'autre par encliquetage.
Preferably:
  • said body is metallic and said trim made of plastic;
  • said body and said lining comprise, for one, an annular groove and for the other, a complementary annular bead; and or
  • said body and said lining comprise means of assembly to one another by snap-fastening.

On observera qu'un tel écrou limiteur de couple est utilisable ailleurs que dans une borne de raccordement électrique. It will be observed that such a torque limiting nut can be used elsewhere. than in an electrical connection terminal.

Selon d'autres caractéristiques préférées, ladite tige filetée et ledit écrou comportent des moyens pour que l'écrou soit auto-bloquant sur la tige.According to other preferred characteristics, said threaded rod and said nut comprise means so that the nut is self-locking on the rod.

On évite ainsi un déserrage intempestif de la borne, dû par exemple à des vibrations.This avoids untimely loosening of the terminal, due for example to vibrations.

La borne de raccordement que l'on vient d'exposer est utilisable dans de nombreux domaines, par exemple sur les enceintes acoustiques et sur les amplificateurs des chaínes haute fidélité ou alors pour raccorder un élément terminal de tube luminescent à son câble d'alimentation électrique haute tension.The connection terminal which has just been exposed can be used in many areas, for example on loudspeakers and amplifiers of high fidelity channels or so to connect an element luminescent tube terminal to its high power cable voltage.

L'invention vise également un tel élément terminal de tube luminescent, muni de moyens de raccordement à un câble électrique d'alimentation comportant un culot rapporté sur une extrémité fermée d'une enveloppe que comporte ledit élément terminal et une borne à écrou installée dans ledit culot, caractérisé en ce que ladite borne à écrou est conforme à la borne de raccordement exposée ci-dessus.The invention also relates to such a tube end element luminescent, provided with means for connection to an electric cable supply comprising a base attached to a closed end of a envelope that comprises said terminal element and a nut terminal installed in said base, characterized in that said nut terminal conforms to the connection terminal described above.

Selon des caractéristiques préférées, pour des raisons de simplicité et de commodité tant à la fabrication qu'à l'assemblage :

  • la vis de ladite borne comporte au-delà de la tige filetée un pied adapté à être fixé sur ledit culot et à se connecter à un fil conducteur sortant de ladite extrémité terminale, et de préférence ledit pied comporte un creux convergeant, à partir de l'extrémité libre dudit pied, vers un trou borgne orienté coaxialement tandis qu'un trou taraudé est ménagé entre le trou borgne et la paroi latérale dudit pied ; et/ou
  • ledit pied et ledit culot présentent des moyens mutuels de positionnement angulaire.
According to preferred characteristics, for reasons of simplicity and convenience both in manufacturing and in assembly:
  • the screw of said terminal comprises, beyond the threaded rod, a foot adapted to be fixed on said base and to be connected to a conductive wire leaving said terminal end, and preferably said foot comprises a converging recess, starting from the the free end of said foot, towards a blind hole oriented coaxially while a tapped hole is formed between the blind hole and the side wall of said foot; and or
  • said foot and said base have mutual angular positioning means.

L'exposé de l'invention sera maintenant poursuivi par la description d'exemples de réalisation, donnée ci-après à titre illustratif et non limitatif, en référence aux dessins annexés. Sur ceux-ci :

  • la figure 1 est une vue en élévation montrant, séparés les uns des autres, un élément terminal de tube luminescent, un câble d'alimentation électrique devant être raccordé à cet élément et un capuchon pour protéger le zone de jonction entre l'élément terminal et le câble d'alimentation, une fois leur raccordement effectué ;
  • la figure 2 est une vue similaire où le câble et l'élément terminal sont raccordés l'un à l'autre et le capuchon en place sur leur zone de jonction ;
  • la figure 3 est une vue agrandie en élévation-coupe prise au niveau de cette zone de jonction ;
  • la figure 4 est une vue en perspective du capuchon ;
  • la figure 5 en est la vue en coupe repérée par V-V sur la figure 4 ;
  • les figures 6 et 7 sont des agrandissements des détails repérés respectivement par VI et VII sur la figure 5 ;
  • la figure 8 est une vue similaire à la figure 3, montrant un mode alternatif de disposition du câble et une variante du capuchon ;
  • les figures 9 et 10 sont des vues en élévation, respectivement de face et de côté, de la vis de la borne de raccordement que comporte l'élément terminal de tube luminescent ;
  • la figure 11 est une vue en élévation et en coupe partielle de l'écrou de cette borne de raccordement ;
  • les figures 12 et 13 sont des vues similaires aux figures 9 et 10 d'une variante de la vis de la borne de raccordement ;
  • les figures 14 et 15 sont des vues en coupe, respectivement en élévation et en plan, d'un écrou prévu pour coopérer avec la vis illustrée sur les figures 12 et 13, le plan de coupe de la figure 14 étant repéré par XIV-XIV sur la figure 15 tandis que le plan de coupe de la figure 15 est repéré par XV-XV sur la figure 14 ;
  • la figure 16 est une vue similaire à la figure 3 pour une variante de l'élément terminal de tube luminescent équipée de la vis et de l'écrou montrés sur les figures 12 à 15 ;
  • la figure 17 est une vue similaire pour une autre variante de l'élément terminal, qui comporte une vis différente ; et
  • les figures 18 et 19 sont des vues similaires aux figures 9 et 10 pour la vis de l'élément terminal illustré sur la figure 17.
The description of the invention will now be continued with the description of exemplary embodiments, given below by way of illustration and not limitation, with reference to the appended drawings. On these:
  • Figure 1 is an elevational view showing, separated from each other, a luminescent tube end element, an electrical supply cable to be connected to this element and a cap to protect the junction area between the end element and the power cable, once they have been connected;
  • Figure 2 is a similar view where the cable and the end member are connected to each other and the cap in place on their junction area;
  • Figure 3 is an enlarged sectional elevation view taken at this junction area;
  • Figure 4 is a perspective view of the cap;
  • Figure 5 is a sectional view identified by VV in Figure 4;
  • Figures 6 and 7 are enlargements of the details marked respectively by VI and VII in Figure 5;
  • Figure 8 is a view similar to Figure 3, showing an alternative mode of cable arrangement and a variant of the cap;
  • Figures 9 and 10 are elevational views, respectively from the front and side, of the screw of the connection terminal that includes the luminescent tube end element;
  • Figure 11 is an elevational view in partial section of the nut of this connection terminal;
  • Figures 12 and 13 are views similar to Figures 9 and 10 of a variant of the screw of the connection terminal;
  • Figures 14 and 15 are sectional views, respectively in elevation and in plan, of a nut provided to cooperate with the screw illustrated in Figures 12 and 13, the section plane of Figure 14 being marked by XIV-XIV in Figure 15 while the section plane of Figure 15 is identified by XV-XV in Figure 14;
  • FIG. 16 is a view similar to FIG. 3 for a variant of the luminescent tube end element equipped with the screw and the nut shown in FIGS. 12 to 15;
  • Figure 17 is a similar view for another variant of the terminal element, which has a different screw; and
  • FIGS. 18 and 19 are views similar to FIGS. 9 and 10 for the screw of the terminal element illustrated in FIG. 17.

L'ensemble montré sur la figure 1 comporte un élément terminal 1 de tube luminescent, un capuchon de protection 2 et un câble d'alimentation électrique 3.The assembly shown in FIG. 1 comprises a terminal element 1 of luminescent tube, protective cap 2 and power cable electric 3.

L'élément 1 comporte une enveloppe en verre 4 en forme de doigt de gant dont l'extrémité fermée se trouve à droite sur les figures 1 à 3 et en haut sur les autres dessins, des moyens de raccordement 5 au câble 3, disposés sur l'extrémité fermée de l'enveloppe 4, et une électrode métallique 6 disposée dans l'enveloppe 4 et reliée électriquement aux moyens de raccordement 5.Element 1 has a glass envelope 4 in the shape of a finger glove with the closed end on the right in figures 1 to 3 and above in the other drawings, connection means 5 to the cable 3, arranged on the closed end of the casing 4, and a metal electrode 6 disposed in the casing 4 and electrically connected to the connection means 5.

Ainsi qu'on le voit plus particulièrement sur la figure 3, l'extrémité fermée de l'enveloppe 4 présente une portion 7 de forme générale hémisphérique dont le centre se raccorde à un membre orienté coaxialement présentant une quille 8 en saillie du côté interne et un mamelon 9 en saillie du côté externe, la périphérie de la portion hémisphérique 7 se raccordant au reste de l'enveloppe 4, qui présente une forme tubulaire à section circulaire qui va jusqu'à l'extrémité opposée de l'enveloppe destinée à être raccordée au reste du tube luminescent.As can be seen more particularly in FIG. 3, the end closed of the envelope 4 has a portion 7 of general shape hemispherical whose center connects to a member coaxially oriented having a keel 8 projecting from the inner side and a nipple 9 projecting from the external side, the periphery of the hemispherical portion 7 connecting to the rest of the casing 4, which has a tubular shape with a circular section which goes to the opposite end of the enclosure intended to be connected to the rest of the luminescent tube.

Un fil conducteur 10 sort de l'extrémité fermée de l'enveloppe 4 au travers du mamelon 9 tandis qu'à l'intérieur de ce mamelon ce fil est connecté électriquement à un fil 11 plus fin qui va jusqu'à la quille 8 à l'intérieur de laquelle il est à son tour connecté à un troisième fil électrique 12 qui s'étend du fil 11 jusqu'à l'électrode 6, à laquelle l'autre extrémité du fil 12 est soudée.A conducting wire 10 comes out of the closed end of the casing 4 at through nipple 9 while inside this nipple this wire is connected electrically to a thinner wire 11 which goes to the keel 8 inside which it is in turn connected to a third electrical wire 12 which extends from wire 11 up to the electrode 6, to which the other end of the wire 12 is welded.

Les moyens de raccordement 5 comportent un culot isolant 13 et une borne de raccordement 14 comportant une vis métallique 15, un écrou 16 et une vis radiale appelée ci-après goupille filetée (17).The connection means 5 comprise an insulating cap 13 and a connection terminal 14 comprising a metal screw 15, a nut 16 and a radial screw hereinafter called threaded pin (17).

Le culot 13, qui est ici en céramique, a une forme générale tubulaire à section circulaire. Il est rapporté par collage de l'une de ses extrémités sur l'extrémité fermée de l'enveloppe 4, avec le mamelon 9 qui est logé dans le culot 13 et le bout de ce dernier qui s'appuie sur la portion hémisphérique 7.The base 13, which is here ceramic, has a generally tubular shape with circular section. It is attached by gluing one of its ends to the closed end of the casing 4, with the nipple 9 which is housed in the base 13 and the end of the latter which rests on the hemispherical portion 7.

Ainsi qu'on l'expliquera plus en détail ultérieurement à l'appui des figures 9 et suivantes, la vis 15 comporte un pied qui est reçu dans le culot 13 et qui reçoit l'extrémité du fil conducteur 10, et une tige filetée qui reçoit le câble 3, la goupille 17 servant à immobiliser le fil conducteur 10 vis-à-vis de la vis 15 et cette dernière vis-à-vis du culot 13, l'écrou 16 servant à immobiliser le câble 3 vis-à-vis de la vis 15.As will be explained in more detail later in support of Figures 9 and following, the screw 15 has a foot which is received in the base 13 and which receives the end of the conducting wire 10, and a threaded rod which receives the cable 3, the pin 17 serving to immobilize the conductive wire 10 with respect to the screw 15 and the latter with respect to the base 13, the nut 16 used to immobilize the cable 3 opposite screw 15.

Pour recevoir le câble 3, et plus précisément une portion d'extrémité de celui-ci présentant une partie terminale dénudée 18, un canal est ménagé dans la tige filetée de la vis 15, ce canal présentant un tronçon coaxial 19 et un tronçon radial 20.To receive the cable 3, and more precisely an end portion thereof having a stripped end portion 18, a channel is formed in the threaded rod of the screw 15, this channel having a coaxial section 19 and a radial section 20.

Dans l'exemple illustré sur les figures 2 et 3, le câble 3 a été introduit dans ce canal par le tronçon coaxial 19 jusqu'au-delà de la partie dénudée 18, celle-ci passant dans le tronçon radial 20 et entourant la tige 15, l'immobilisation ayant été ensuite effectuée par serrage de l'écrou 16.In the example illustrated in FIGS. 2 and 3, the cable 3 has been introduced in this channel via the coaxial section 19 to beyond the stripped portion 18, the latter passing through the radial section 20 and surrounding the rod 15, the immobilization having then been carried out by tightening the nut 16.

Le capuchon 2 comporte un corps central 21, une jupe 22 disposée entre le corps 21 et l'extrémité du capuchon que l'on voit à gauche sur les figures 1 à 3 et en bas sur les autres dessins ainsi qu'un col 23 disposé entre le corps 21 et l'extrémité qu'on voit en haut sur les dessins.The cap 2 comprises a central body 21, a skirt 22 arranged between the body 21 and the end of the cap which can be seen on the left on the Figures 1 to 3 and below on the other drawings as well as a collar 23 disposed between the body 21 and the end that can be seen at the top in the drawings.

Le capuchon 2 est obtenu par moulage en une seule pièce d'une matière plastique souple et élastique, ici du silicone.The cap 2 is obtained by molding in a single piece of a flexible and elastic plastic material, here silicone.

On va maintenant décrire plus en détail le capuchon 2, à l'appui des figures 4 à 7.We will now describe in more detail the cap 2, in support of the Figures 4 to 7.

Le corps central 21 a une forme globalement tubulaire. Il comporte un tronçon 24 à section circulaire constante et un tronçon 25 tronconique se raccordant du côté du grand diamètre au tronçon 24 tandis que du côté du petit diamètre il se raccorde au col 23.The central body 21 has a generally tubular shape. It has a section 24 with a constant circular section and a frustoconical section 25 connecting on the side of the large diameter to section 24 while on the side of the small diameter it is connected to the neck 23.

Celui-ci se rétrécit entre son extrémité où il se raccorde au corps central 21 et son extrémité opposée, qui présente une lèvre annulaire 26 bordant une ouverture 27.This narrows between its end where it connects to the body central 21 and its opposite end, which has an annular lip 26 bordering an opening 27.

Ainsi qu'on le voit plus particulièrement sur la figure 6, la lèvre 26 présente deux portion annulaires concentriques, respectivement une portion 28 amincie qui borde directement l'ouverture 27, et une portion 29 plus épaisse qui est située entre la portion amincie 28 et le reste du col 23. L'amincissement qui existe entre les portions 29 et 28 est pratiquée du côté interne, les surfaces externes des portions 28 et 29 étant à fleur l'une de l'autre.As can be seen more particularly in FIG. 6, the lip 26 has two concentric annular portions, respectively a portion 28 thinned which directly borders the opening 27, and a thicker portion 29 which is located between the thinned portion 28 and the rest of the neck 23. The thinning which exists between the portions 29 and 28 is practiced on the internal side, the surfaces external portions 28 and 29 being flush with each other.

Au contraire, comme on le voit plus particulièrement sur la figure 7, l'amincissement de paroi qui existe entre la portion 24 du corps central 21 et la jupe 22, est pratiqué du côté externe, les surfaces internes de la jupe 22 et du corps 21 étant à fleur l'une de l'autre.On the contrary, as seen more particularly in FIG. 7, the thinning of the wall which exists between the portion 24 of the central body 21 and the skirt 22, is practiced on the external side, the internal surfaces of skirt 22 and body 21 being flush with one another.

La jupe 22 a une forme globalement tronconique, qui s'évase à l'opposé du corps central 21, son diamètre d'extrémité étant légèrement plus important que celui par lequel elle se raccorde au corps central 21.The skirt 22 has a generally frustoconical shape, which flares out the opposite of the central body 21, its end diameter being slightly more important than that by which it connects to the central body 21.

On va maintenant expliquer comment l'on réalise le raccordement entre l'élément terminal 1 et le câble 3 ainsi que la mise en place du capuchon 2.We will now explain how we make the connection between the terminal element 1 and the cable 3 as well as the fitting of the cap 2.

On commence par engager celui-ci sur le câble 3, en faisant passer ce dernier au travers de l'ouverture 27 et en faisant coulisser le capuchon 2 suffisamment loin sur le câble 3 pour qu'un tronçon d'extrémité de celui-ci soit disposé au-delà de la jupe 22.We start by engaging it on cable 3, passing the latter through the opening 27 and sliding the cap 2 far enough on the cable 3 so that an end section thereof is disposed beyond the skirt 22.

On effectue alors le raccordement entre le tronçon d'extrémité du câble 3 et la borne 5 comme expliqué précédemment.The connection between the end section of the cable 3 and terminal 5 as explained above.

On fait ensuite coulisser le capuchon 2 le long du câble 3 jusqu'à amener la jupe 22 à être en contact avec la portion hémisphérique 7 de l'enveloppe 4 de l'élément 1.We then slide the cap 2 along the cable 3 until bring the skirt 22 to be in contact with the hemispherical portion 7 of the envelope 4 of element 1.

On est alors dans la configuration montrée sur la figure 3.We are then in the configuration shown in FIG. 3.

On observera que le corps 21 a une conformation qui lui permet de loger les moyens de raccordement 5, que la souplesse et l'élasticité de la jupe 22 lui permettent d'épouser la surface externe de la portion hémisphérique 7 à la façon d'une ventouse, et que de même la souplesse et l'élasticité de la lèvre 26 lui permettent d'être serrée sur le câble 3.It will be observed that the body 21 has a conformation which allows it to accommodate the connection means 5, that the flexibility and elasticity of the skirt 22 allow it to conform to the external surface of the hemispherical portion 7 at the like a suction cup, and so does the flexibility and elasticity of the lip 26 allow it to be tightened on cable 3.

On observera plus précisément, à propos de la lèvre 26, que celle-ci est en contact avec la surface externe du câble 3 par deux portions annulaires, respectivement le bout libre de la portion 28 et l'arête de la portion 29 qui est à l'aplomb du raccordement de cette dernière avec la portion 28. It will be observed more precisely, with regard to the lip 26, that the latter is in contact with the external surface of the cable 3 by two annular portions, respectively the free end of the portion 28 and the edge of the portion 29 which is at plumb with the connection of the latter with the portion 28.

La matière dont est constitué le capuchon 2 étant imperméable et tant la jupe 22 que la lèvre 26 s'appuyant de façon étanche respectivement sur l'élément terminal 1 et sur le câble 3, le capuchon 2 isole son contenu de l'extérieur, d'une façon étanche, ce qui permet de protéger ce contenu des dégâts susceptibles d'être causés par l'humidité, qui est source de corrosion et d'arcage électrique.The material of which the cap 2 is made being waterproof and so the skirt 22 that the lip 26 presses in a sealed manner respectively on the terminal element 1 and on the cable 3, the cap 2 isolates its content from the outside, in a waterproof way, which makes it possible to protect this content from damage likely to be caused by moisture, which is a source of corrosion and electric arc.

La figure 8 montre l'élément terminal 1 et le câble électrique 3 raccordés l'un à l'autre dans une position où le câble 3 est disposé radialement et non pas coaxialement, le capuchon 2 étant remplacé par un capuchon 102 similaire, mais où le corps central 21 est remplacé par un corps central 121. On a employé pour le capuchon 102 les mêmes références numériques que pour le capuchon 2, mais augmentées du chiffre 100.Figure 8 shows the terminal element 1 and the electrical cable 3 connected to each other in a position where the cable 3 is arranged radially and not coaxially, the cap 2 being replaced by a cap 102 similar, but where the central body 21 is replaced by a central body 121. We used for the cap 102 the same reference numbers as for the cap 2, but increased by the number 100.

Le corps central 121 du capuchon 102 comporte une portion 124 pratiquement identique à la portion 24 du corps 21 du capuchon 2, qui est notamment tubulaire à section cylindrique. D'une façon générale, la portion 125 est similaire à la portion 25, mais elle est coudée au lieu d'être droite, son extrémité qui se raccorde au col 123 étant disposée transversalement à son extrémité qui se raccorde au tronçon 124, alors que dans la portion 25 ces deux extrémités sont orientées parallèlement l'une à l'autre.The central body 121 of the cap 102 has a portion 124 practically identical to the portion 24 of the body 21 of the cap 2, which is in particular tubular with cylindrical section. Generally speaking, the 125 portion is similar to portion 25, but it is angled instead of straight, its end which connects to the neck 123 being arranged transversely to its end which connects to section 124, while in portion 25 these two ends are oriented parallel to each other.

La jupe 122 et le col 123 sont identiques à la jupe 22 et au col 23, respectivement.The skirt 122 and the collar 123 are identical to the skirt 22 and to the collar 23, respectively.

L'opération de raccordement entre l'élément 1 et le câble 3 ainsi que la mise en place du capuchon 102 sont similaires aux opérations requises pour effectuer la jonction dans la configuration de la figure 3, mais le câble 3 est introduit dans le canal de la tige filetée de la vis 15 par le tronçon radial 20 de celle-ci et le bout de la partie dénudée 18 est logé dans le tronçon coaxial 19 de ce canal.The connection operation between element 1 and cable 3 as well as the fitting of the cap 102 are similar to the operations required for make the junction in the configuration of figure 3, but the cable 3 is introduced into the channel of the threaded rod of the screw 15 through the radial section 20 of this and the end of the stripped portion 18 is housed in the coaxial section 19 of this channel.

On va maintenant décrire plus en détail la vis 15 de la borne de raccordement 14, à l'appui des figures 9 et 10.We will now describe in more detail the screw 15 of the terminal connection 14, using figures 9 and 10.

Ainsi qu'indiqué précédemment, la vis 15 comporte une tige filetée 30 destinée à recevoir le câble 3 et à l'immobiliser en coopération avec l'écrou 16, ainsi qu'un pied 31 destiné à être reçu dans le culot 13 et à recevoir le fil conducteur 10 et une portion de la goupille 17.As indicated above, the screw 15 includes a threaded rod 30 intended to receive the cable 3 and immobilize it in cooperation with the nut 16, as well as a foot 31 intended to be received in the base 13 and to receive the wire conductor 10 and a portion of pin 17.

Comme expliqué ci-dessus, le canal ménagé dans la tige filetée 30 présente un tronçon 19 coaxial à la vis 15 et un tronçon radial 20, les tronçons 19 et 20 se raccordant l'un à l'autre.As explained above, the channel formed in the threaded rod 30 has a section 19 coaxial with the screw 15 and a radial section 20, the sections 19 and 20 connecting to each other.

Le tronçon 19 présente, à partir de l'extrémité libre de la tige 30, une portion de forme cylindrique ayant un diamètre suffisamment grand pour recevoir une partie non dénudée du câble 3, comme montré sur la figure 3, le tronçon 19 présentant au-delà de cette partie cylindrique, une partie conique dans laquelle débouche le tronçon radial 20, qui est cylindrique et de diamètre plus petit que la partie cylindrique du tronçon coaxial 19, seule une partie dénudée 18 du câble 3 devant passer par le tronçon radial 20.The section 19 has, from the free end of the rod 30, a portion of cylindrical shape having a diameter large enough to receive a non-stripped part of the cable 3, as shown in Figure 3, the section 19 having, beyond this cylindrical part, a conical part into which opens the radial section 20, which is cylindrical and of diameter smaller than the cylindrical part of the coaxial section 19, only a part stripped 18 of the cable 3 having to pass through the radial section 20.

Ce dernier débouche, par sa zone la plus éloignée de l'extrémité libre de la tige 30, dans une gorge 32 ménagée dans la tige 30, la gorge 32 étant prévue pour loger le morceau de la partie 18 du câble 3 qui sort par le tronçon radial 20 (configuration de la figure 3) ou rentre dans celui-ci (configuration de la figure 8).The latter opens, by its zone furthest from the free end of the rod 30, in a groove 32 formed in the rod 30, the groove 32 being provided to accommodate the piece of part 18 of cable 3 which comes out through the section radial 20 (configuration of FIG. 3) or enter it (configuration of the figure 8).

Le tronçon 20 est tangent, par la partie de sa surface latérale la plus éloignée de l'extrémité libre de la tige 30, à un épaulement 33 que comporte la vis 15, l'écrou 16 étant prévu pour venir serrer contre l'épaulement 33 le morceau de la partie 18 logé dans la gorge 32, comme montré sur les figures 3 ou 8.The section 20 is tangent, by the part of its lateral surface most remote from the free end of the rod 30, to a shoulder 33 which comprises the screw 15, the nut 16 being provided to tighten against the shoulder 33 the piece of part 18 housed in the groove 32, as shown in Figures 3 or 8.

La tige 30 présente une partie filetée 34 qui ne s'étend que sur une certaine longueur à partir de l'extrémité libre de cette tige, celle-ci présentant entre l'épaulement 33 et la partie filetée 34 une surface externe lisse dont le diamètre général est légèrement inférieur au diamètre à fond de filet de la partie 34, pour des raisons de coopération avec l'écrou 16, expliquées plus loin.The rod 30 has a threaded portion 34 which extends only over a certain length from the free end of this rod, the latter having between the shoulder 33 and the threaded part 34 a smooth external surface whose overall diameter is slightly less than the bottom diameter of the portion 34, for reasons of cooperation with the nut 16, explained below.

Le pied 31 de la vis 15 a une forme générale extérieure cylindrique de diamètre légèrement supérieur à la partie filetée 34 de la vis 15.The foot 31 of the screw 15 has a generally cylindrical outer shape of diameter slightly greater than the threaded part 34 of the screw 15.

A partir de l'extrémité libre du pied 31, c'est-à-dire de son extrémité qui est opposée à la tige 30, est managé un creux 35 de forme tronconique qui converge, depuis une ouverture de diamètre légèrement inférieur à celui du pied 31, vers un trou borgne orienté coaxialement, de diamètre beaucoup plus petit. Un trou taraudé 37, orienté radialement, est disposé juste en-dessous du tronçon radial 20, et s'étend entre le trou 36 et l'extérieur du pied 31.From the free end of the foot 31, that is to say from its end which is opposite the rod 30, a hollow 35 of frustoconical shape is managed which converges, from an opening with a diameter slightly smaller than that of the base 31, towards a blind hole oriented coaxially, of much smaller diameter. A tapped hole 37, oriented radially, is arranged just below the radial section 20, and extends between the hole 36 and the outside of the foot 31.

Le trou 36 sert à loger le bout du fil conducteur 10, le trou taraudé 37 à recevoir la goupille filetée 17, et le creux 35 sert à guider le bout du fil 10 vers le trou 36 et à recevoir l'extrémité du mamelon 9.The hole 36 serves to accommodate the end of the conductive wire 10, the tapped hole 37 to receive the threaded pin 17, and the hollow 35 is used to guide the end of the wire 10 towards the hole 36 and to receive the end of the nipple 9.

Une petite encoche parallélépipédique 38 est ménagée sous l'orifice de sortie du trou taraudé 37. Elle est prévue pour coopérer avec un ergot prévu sur le culot 13, afin de positionner la vis 15 dans la position angulaire requise pour pouvoir mettre en place la goupille 17.A small parallelepipedic notch 38 is formed under the orifice outlet from the tapped hole 37. It is designed to cooperate with a lug provided on the base 13, in order to position the screw 15 in the required angular position to be able to fit the pin 17.

L'écrou 16 présente extérieurement un moletage 39 longitudinal pour faciliter sa prise en main.The nut 16 has externally a longitudinal knurling 39 for facilitate its handling.

Du côté interne, l'écrou 16 présente une gorge 40 de diamètre légèrement plus grand que le diamètre à fond de filet du taraudage 41 qui se trouve de part et d'autre de la gorge 40, ce taraudage s'étendant sur une longueur très faible du côté qui se trouve en-dessous de la gorge 40 sur la figure 11, et sur une longueur plus importante du côté qui se trouve au-dessus.On the internal side, the nut 16 has a groove 40 of diameter slightly larger than the bottom diameter of the thread 41 which is found on either side of the groove 40, this thread extending over a very short length on the side which is below the groove 40 in the figure 11, and over a greater length of the side which is above.

La longueur sur laquelle s'étend la gorge 40 est légèrement supérieure à celle de la partie filetée 34 de la vis 15.The length over which the groove 40 extends is slightly greater than that of the threaded part 34 of the screw 15.

L'écrou 16 se met en place sur la vis 30 en le présentant sur cette dernière avec le côté que l'on voit en bas sur la figure 11 qui rencontre le premier la partie filetée 34, on met en prise la petite partie du taraudage 41 que l'on voit sous la gorge 40 en prise avec la partie filetée 34, on continue le vissage de l'écrou 16 jusqu'à ce que la partie filetée 34 se trouve dans la gorge 40, et on met légèrement en prise la partie du taraudage 41 que l'on voit au-dessus de la gorge 40 avec la partie filetée 34.The nut 16 is put in place on the screw 30 by presenting it on this last with the side that we see at the bottom in figure 11 which meets the first the threaded portion 34, the small portion of the thread 41 is engaged we see under the groove 40 in engagement with the threaded portion 34, we continue the screwing the nut 16 until the threaded part 34 is in the groove 40, and the portion of the thread 41 which is seen is slightly engaged above the groove 40 with the threaded part 34.

Une fois le câble 3 mis en place, il n'y a plus qu'à poursuivre le vissage de l'écrou 16 pour arriver à la position d'immobilisation du câble 3 montrée sur la figure 3 ou sur la figure 8. Once the cable 3 is in place, all you have to do is continue the screwing the nut 16 to reach the immobilization position of the cable 3 shown in Figure 3 or Figure 8.

La gorge 40 sert à éviter de dégager involontairement l'écrou 16 de la tige 30, et limite ainsi les risques de perdre cet écrou : en effet, lorsque la partie du taraudage 41 que l'on voit au-dessus de la gorge 40 cesse d'être en prise avec la partie filetée 34, il faut, pour poursuivre le dévissage de l'écrou 16, mettre en prise la partie du taraudage 41 que l'on voit sous la gorge 40, ce qui nécessite un positionnement précis de l'écrou 16 vis-à-vis de la partie 34, qui a très peu de chances de s'effectuer spontanément, l'écrou 16 tournant plutôt fou avec la partie filetée 34 qui est logée dans la gorge 40.The groove 40 serves to avoid unintentionally releasing the nut 16 from the rod 30, and thus limits the risk of losing this nut: in fact, when the part of the thread 41 which can be seen above the groove 40 ceases to be engaged with the threaded part 34, to continue unscrewing the nut 16, engage the part of the thread 41 that can be seen under the groove 40, which requires precise positioning of the nut 16 with respect to the part 34, which has very unlikely to happen spontaneously, nut 16 turning rather crazy with the threaded part 34 which is housed in the groove 40.

On observera qu'à chaque extrémité du taraudage 41, il est pratiqué un chanfrein 42, et que celui que l'on voit en bas sur les dessins favorise la coopération de l'écrou 16 avec le morceau de la partie 18 du câble 3 qui est serrée contre l'épaulement 33.It will be observed that at each end of the internal thread 41, it is made a chamfer 42, and that the one seen below in the drawings favors the cooperation of the nut 16 with the piece of the part 18 of the cable 3 which is pressed against the shoulder 33.

On va maintenant expliquer comment l'on procède à la mise en place des moyens de raccordement 5 sur le reste de l'élément terminal 1.We will now explain how we proceed with the implementation connection means 5 on the rest of the terminal element 1.

On commence par coller le culot 13 sur l'extrémité fermée de l'enveloppe 4, puis l'on introduit le pied 31 de la vis 15 dans le culot 13, le fil conducteur 10 s'introduisant alors dans le creux 35 puis dans le trou coaxial 36, et l'on manoeuvre la vis 15 jusqu'à avoir mis en place l'encoche 38 sur l'ergot correspondant prévu sur le culot 13. On met alors en place la goupille filetée 17 dans le trou taraudé 37, au travers d'un trou lisse correspondant orienté radialement prévu dans le culot 13, et on procède au vissage de la goupille 17 pour immobiliser le fil conducteur 10 par rapport à la vis 15 et cette dernière vis-à-vis du culot 13.We start by sticking the base 13 on the closed end of the casing 4, then the foot 31 of the screw 15 is introduced into the base 13, the wire conductor 10 then being introduced into the hollow 35 then into the coaxial hole 36, and the screw 15 is maneuvered until the notch 38 has been placed on the lug corresponding provided on the base 13. The threaded pin 17 is then put in place in the tapped hole 37, through a corresponding smooth oriented hole radially provided in the base 13, and the pin 17 is screwed to immobilize the conductive wire 10 relative to the screw 15 and the latter opposite the base 13.

Les figures 12 et 13 montrent une variante 115 de la vis 15, les figures 14 et 15 une variante 116 de l'écrou 16 et la figure 16 une variante 101 de l'élément terminal 1, la borne de raccordement 114 de l'élément 101 comportant la vis 115 et l'écrou 116. Pour toutes ces variantes, on a employé les mêmes références numériques, mais augmentées du chiffre 100.Figures 12 and 13 show a variant 115 of the screw 15, the Figures 14 and 15 a variant 116 of the nut 16 and Figure 16 a variant 101 of the terminal element 1, the connection terminal 114 of the element 101 comprising the screw 115 and the nut 116. For all these variants, the same numerical references, but increased by the number 100.

La tige filetée 130 de la vis 115 se distingue de la tige 30 de la vis 15 par le fait que la partie filetée 134 s'étend pratiquement de l'extrémité libre de la tige 130 jusqu'à la gorge 132, une petite collerette coaxiale 43 de faible épaisseur étant prévue entre le bout de la partie filetée 134 et l'extrémité libre de la tige 130, la collerette 43 ayant un diamètre externe légèrement inférieur à celui du diamètre à fond de filet de la partie filetée 134. La tige 130 se distingue également de la tige 30 par le fait qu'un méplat 44 est pratiqué au débouché sur l'extérieur du tronçon radial 120.The threaded rod 130 of the screw 115 differs from the rod 30 of the screw 15 by the fact that the threaded portion 134 extends practically from the free end of the rod 130 to the groove 132, a small coaxial collar 43 of low thickness being provided between the end of the threaded portion 134 and the free end of the rod 130, the collar 43 having an external diameter slightly less than that of the bottom diameter of the threaded portion 134. The rod 130 is distinguished also of the rod 30 by the fact that a flat 44 is formed at the outlet on the exterior of the radial section 120.

Ainsi qu'on le voit sur la figure 16, la collerette 43 est destinée à être écrasée une fois que l'écrou 116 a été mis en place sur la partie filetée 134, afin d'éviter que cet écrou puisse être enlevé de la partie filetée 134 et risquer d'être perdu.As seen in Figure 16, the flange 43 is intended to be crushed once the nut 116 has been placed on the threaded portion 134, so avoid that this nut can be removed from the threaded part 134 and risk being lost.

Le méplat 44 sert à éviter l'existence d'arêtes acérées susceptibles de dégrader la partie 18 du câble 3 se trouvant au voisinage de la sortie du tronçon radial 120, arêtes acérées qui existeraient en l'absence du méplat 44.The flat 44 serves to avoid the existence of sharp edges likely to degrade the part 18 of the cable 3 located near the outlet of the section radial 120, sharp edges which would exist in the absence of the flat 44.

Le pied 131 de la vis 115 se distingue du pied 31 de la vis 15 par le fait qu'au lieu d'avoir un diamètre externe unique, il comporte une partie 45 de grand diamètre et une partie 46 de petit diamètre, la partie 45 se trouvant entre l'épaulement 133 et la partie 46, cette dernière se trouvant entre la partie 45 et l'extrémité libre du pied 131. Le pied 131 se distingue également du pied 31 par le fait que l'encoche 38 est remplacée par un méplat 47 pratiqué dans la portion 45 avec le même centrage que le tronçon 120 et que le trou taraudé 137.The foot 131 of the screw 115 is distinguished from the foot 31 of the screw 15 by the instead of having a single outer diameter, it has a 45 part large diameter and part 46 of small diameter, part 45 being between the shoulder 133 and the part 46, the latter being between the part 45 and the free end of the foot 131. The foot 131 is also distinguished from the foot 31 by the fact that the notch 38 is replaced by a flat 47 made in the portion 45 with the same centering as the section 120 and the tapped hole 137.

Comme on le voit sur les figures 13 et 16, l'épaulement 48 qui existe du fait de la différence de diamètre entre les portions 45 et 46, vient en appui sur le bout du culot 113 qui remplace le culot 13 dans l'élément terminal du tube luminescent 101, le creux existant du fait du méplat 47 recevant un redent 49 de positionnement prévu sur l'extrémité du culot 113 opposée à celle par laquelle il est rapporté sur l'enveloppe en verre 104.As seen in Figures 13 and 16, the shoulder 48 which exists because of the difference in diameter between the portions 45 and 46, bears on the end of base 113 which replaces base 13 in the end element of the tube luminescent 101, the existing hollow due to the flat 47 receiving a redent 49 of positioning provided on the end of the base 113 opposite to that by which it is attached to the glass envelope 104.

L'écrou 116 comporte un corps métallique 50 et une garniture 51 en matière plastique.The nut 116 comprises a metal body 50 and a gasket 51 in plastic material.

Le corps 50 présente intérieurement une partie taraudée 52 qui se termine du côté que l'on voit en bas par un chanfrein 53 et du côté que l'on voit en haut par une portion tronconique 54 qui fait la jonction entre la partie taraudée 52 et une portion annulaire 55 relativement mince. The body 50 has internally a threaded portion 52 which ends on the side we see at the bottom with a chamfer 53 and on the side we see at the top by a frustoconical portion 54 which makes the junction between the part tapped 52 and a relatively thin annular portion 55.

Extérieurement, le corps 50 présente, à peu près à mi-hauteur, une gorge 56 à profil semi-circulaire et, sous la gorge 56, des godrons 57 qui donnent au corps 50, à leur niveau, comme on le voit sur la figure 15, un profil externe ondulé.Externally, the body 50 has, approximately at mid-height, a groove 56 with semi-circular profile and, under groove 56, gadroons 57 which give the body 50, at their level, as seen in FIG. 15, a profile corrugated external.

La garniture 51 présente une conformation interne correspondant d'une façon générale à la conformation externe du corps 50.The lining 51 has a corresponding internal conformation generally to the external conformation of the body 50.

Plus précisément, à partir de l'extrémité que l'on voit en bas sur la figure 14, la garniture 51 comporte un bec 58 qui se loge dans un chanfrein externe du corps 50, une série de godrons 59 d'une forme telle que le creux entre deux godrons 59 reçoit un godron 57 du corps 50 tandis que le creux entre deux godrons 57 reçoit un godron 59 de la garniture 51 (voir figure 15), un bourrelet annulaire 60 à section semi-circulaire engagée dans la gorge 56, et un retour annulaire 61 à profil en U qui borde la portion annulaire 55 du corps 50 sur ses trois côtés.More specifically, from the end that we see below on the Figure 14, the lining 51 has a spout 58 which is housed in a chamfer external of the body 50, a series of gadroons 59 of a shape such as the hollow between two gadroons 59 receives a gadroon 57 from the body 50 while the hollow between two gadroons 57 receives a gadroon 59 of the lining 51 (see FIG. 15), a annular bead 60 with semicircular section engaged in the groove 56, and a annular return 61 with a U-shaped profile which borders the annular portion 55 of the body 50 on its three sides.

La garniture 51 est montée par encliquetage sur le corps 50. Elle s'y maintient grâce au retour 61 et au bec 58. Elle est guidée en rotation vis-à-vis du corps 50 notamment par la coopération de la portion 55 et du retour 61, de la gorge 56 et du bourrelet 60 ainsi que du bec 58 avec le chanfrein correspondant, mais la rotation est arrêtée parla coopération des godrons 57 et 59, sauf si l'on exerce sur la garniture 51 un couple tel que la garniture puisse se déformer pour qu'il y ait un glissement entre les godrons du corps et ceux de la garniture.The lining 51 is snap-fitted on the body 50. It is there maintains thanks to the return 61 and the spout 58. It is guided in rotation with respect to the body 50 in particular by the cooperation of the portion 55 and the return 61, of the groove 56 and bead 60 as well as spout 58 with the chamfer corresponding, but the rotation is stopped by the cooperation of the gadroons 57 and 59, unless a torque is exerted on the lining 51 so that the lining can be deform so that there is a slip between the gadroons of the body and those of the garnish.

Grâce à cette possibilité de glissement de la garniture 51 par rapport au corps 50 lorsqu'un couple important est exercé, l'écrou 116 permet de limiter le couple de serrage qu'il est possible d'exercer au moyen de cet écrou 116, ce qui offre l'avantage d'éviter que l'on puisse serrer excessivement la portion dénudée 18 du câble 3 avec l'écrou au point de sectionner cette portion.Thanks to this possibility of sliding of the lining 51 relative to to the body 50 when a significant torque is exerted, the nut 116 makes it possible to limit the tightening torque which it is possible to exert by means of this nut 116, this which has the advantage of preventing the portion from being over-tightened stripped 18 of cable 3 with the nut to the point of cutting this portion.

La variante 201 de l'élément terminal montrée sur la figure 17 est similaire à l'élément 101, mais la vis 115 est remplacée par une vis 215 montrée sur les figures 18 et 19. On, a employé pour l'élément 201 et pour la vis 215 les mêmes références numériques que pour l'élément 1 et la vis 15, mais augmentées du chiffre 200.The variant 201 of the terminal element shown in FIG. 17 is similar to item 101, but screw 115 is replaced by screw 215 shown in Figures 18 and 19. We used for element 201 and for screw 215 the same reference numbers as for element 1 and screw 15, but plus the number 200.

Dans la vis 215, la partie axiale du canal de réception d'une portion d'extrémité du câble 3 est formée par quatre tronçons 219A, 219B, 219C et 219D, orientés axialement mais excentrés et ouverts latéralement au travers de la portion filetée 234 de la tige 230 de cette vis, et la partie radiale du canal de réception est formée par deux tronçons radiaux 220A et 220B débouchant à chaque extrémité dans un tronçon axial respectif.In screw 215, the axial part of the channel for receiving a portion end of the cable 3 is formed by four sections 219A, 219B, 219C and 219D, axially oriented but offset and open laterally through the threaded portion 234 of the rod 230 of this screw, and the radial part of the channel reception is formed by two radial sections 220A and 220B leading to each end in a respective axial section.

Plus précisément, le tronçon radial 220A débouche respectivement dans le tronçon axial 219A et dans le tronçon axial 219C alors que le tronçon radial 220B débouche respectivement dans le tronçon axial 219B et dans le tronçon axial 219D.More specifically, the radial section 220A opens respectively in the axial section 219A and in the axial section 219C while the section radial 220B opens respectively into the axial section 219B and into the axial section 219D.

La partie filetée 234 de la tige 230 s'étend de l'extrémité libre de la tige 230 à la gorge 232, la partie filetée 234 étant prévue pour coopérer avec un écrou tel que l'écrou 116, comme montré sur la figure 17.The threaded portion 234 of the rod 230 extends from the free end of the rod 230 to groove 232, the threaded portion 234 being designed to cooperate with a nut such as nut 116, as shown in Figure 17.

Le pied 231 de l'écrou 214 est similaire au pied 31, mais présente des excavations 62A, 62B, 62C et 62D qui prolongent respectivement les tronçons 219A à 219D du canal de la tige 230.The foot 231 of the nut 214 is similar to the foot 31, but has excavations 62A, 62B, 62C and 62D which respectively extend the sections 219A to 219D of the rod channel 230.

Dans des variantes non représentées des écrous 16 et 116, des mesures sont prises pour rendre ces écrous auto-bloquants afin d'éviter leur dévissage, par exemple, pour l'écrou 16, le remplacement de la partie taraudée 41 que l'on voit sous la gorge 40, par une partie taraudée ayant une origine d'hélice du filet légèrement différente, et pour l'écrou 116, en prévoyant d'intégrer à la partie taraudée 52 une matière plastique.In variants not shown of the nuts 16 and 116, measures are taken to make these nuts self-locking to avoid their unscrewing, for example, for nut 16, replacing the threaded part 41 that can be seen under the throat 40, by a tapped part having an origin slightly different thread propeller, and for nut 116, providing to integrate into the threaded part 52 a plastic material.

On observera que les différentes mesures décrites spécifiquement pour l'une des bornes de raccordement 14, 114 ou 214, sont susceptibles d'être mises en oeuvre dans les autres bornes. En particulier, il est possible de prévoir un méplat au débouché du tronçon radial 20 de la tige filetée 30 de la vis 15, de modifier l'écrou 16 pour qu'il dispose de moyens limiteurs de couple du même genre que l'écrou 116, ou de rendre ce dernier imperdable vis-à-vis de la tige 130 par le même genre de mesures que celles prises dans la borne 14. It will be observed that the various measures described specifically for one of the connection terminals 14, 114 or 214, are likely to be implemented in the other terminals. In particular, it is possible to plan a flat at the outlet of the radial section 20 of the threaded rod 30 of the screw 15, modify the nut 16 so that it has torque limiting means of the same like the nut 116, or make the latter captive with respect to the rod 130 by the same kind of measurements as those taken in terminal 14.

De nombreuses autres variantes sont possibles en fonction des circonstances, et on rappelle à cet égard que l'invention ne se limite pas aux exemples décrits et représentés.Many other variants are possible depending on the circumstances, and it is recalled in this regard that the invention is not limited to examples described and shown.

Claims (27)

  1. An electrical connecting terminal comprising a screw having a screwthreaded shank (30; 130; 230) in which is provided a passage adapted to receive an end portion of an electrical cable, and comprising a nut (16; 116) adapted to co-operate with said screwthreaded shank for clampingly immobilising said end portion which is received in said passage, to said latter, which has an axial portion (19; 119; 219A, 219B, 219C, 219D) and a radial portion (20; 120; 220A, 220B) which are connected to each other, characterised in that the screwthreaded shank (30; 130; 230) has a groove (32; 132; 232) into which said radial portion (20; 120; 220A, 220B) opens by way of its zone most remote from the free end of the screwthreaded shank, said groove making it possible to accommodate the piece of the cable which issues from the radial portion of the passage or which passes into same.
  2. A terminal according to claim 1 characterised in that said axial portion (19; 119) is coaxial with said screwthreaded shank (30; 130).
  3. A terminal according to claim 2 characterised in that, from the free end of said screwthreaded shank (30; 130), said coaxial portion (19; 119) has at least one portion adapted to receive a part of said cable (3), which has not been stripped.
  4. A terminal according to either one of claims 2 and 3 characterised in that said coaxial portion (19; 119) has a convergent part into which said radial portion (20; 120) opens.
  5. A terminal according to claim 1 characterised in that said axial portion (219A, 219B, 219C, 219D) of the passage is eccentric.
  6. A terminal according to claim 5 characterised in that said axial portion (219A, 219B, 219C, 219D) of the passage opens through the side wall of the screwthreaded shank (230).
  7. A terminal according to either one of claims 5 and 6 characterised in that said passage has a plurality of similar eccentric axial portions (219A, 219B, 219C, 219D) which are regularly distributed in the angular plane.
  8. A terminal according to any one of claims 5 to 7 characterised in that the eccentric axial portion (219A, 219B, 219C, 219D) is prolonged into a base portion (231) that said screw (215) comprises beyond said screwthreaded shank (230).
  9. A terminal according to any one of claims 5 to 8 characterised in that said passage has four eccentric axial portions (219A, 219B, 219C, 219D) and two radial portions (220A, 220B), each of which opens at each end in a respective axial portion.
  10. A terminal according to any one of claims 1 to 9 characterised in that the radial portion (220A, 220B) passes right through said screwthreaded shank (215).
  11. A terminal according to any one of claims 1 to 8 characterised in that said radial portion (20; 120) opens in blind relationship in said axial portion (19; 119).
  12. A terminal according to any one of claims 1 to 11 characterised in that the radial portion opens outside the screwthreaded shank (130) through a flat (44).
  13. A terminal according to any one of claims 1 to 12 characterised in that said screw comprises a shoulder (33; 133) which borders said screwthreaded shank (30; 130) and which is tangential to the part of the lateral surface of the radial portion (20; 120), which is most remote from the free end of the screwthreaded shank.
  14. A terminal according to any one of claims 1 to 13 characterised in that the nut (16; 116) comprises a chamfer (42; 53) on its edge between its internal wall and its face facing in opposite relationship to the free end of the screwthreaded shank.
  15. A terminal according to any one of claims 1 to 14 characterised in that said shank (30; 130) and said nut (16; 116) comprise non-losability means (40; 43) for preventing the nut from coming away from the shank.
  16. A terminal according to claim 16 characterised in that said non-losability means comprise:
    on the shank (30) a part of smaller outside diameter than the thread bottom diameter of the screwthreaded part (34), the latter extending between the free end of the shank (30) and the part of smaller outside diameter, over a predetermined length; and
    on the nut (16) a groove (40) provided in the thread (41), said groove (40) being of a diameter which is larger than the thread bottom diameter of the thread and being of a length which is greater than the length of the screwthreaded part (34) of the shank (30).
  17. A terminal according to claim 15 characterised in that said non-losability means comprise a crushed member (43) at the free end of said shank (130).
  18. A terminal according to any one of claims 1 to 17 characterised in that said nut (116) comprises means for limiting the torque applied to its threaded part (52).
  19. A terminal according to claim 18 characterised in that said means for limiting the torque applied comprise complementary ridges (57, 59) respectively provided on a nut body (50) on which the threaded part (52) is provided and on a seal (51) which forms the side wall of the nut, with said body (50) and said seal (51) which are guided in respect of rotation relative to each other but coupled in respect of rotation by the co-operation of said ridges (57, 59), at least one of said body and seal (50, 51) being adapted to deform to permit said ridges (57, 59) to slide one over the other when a torque greater than a predetermined value is applied between the seal (51) and the body (50).
  20. A terminal according to claim 19 characterised in that said body (50) is of metal and said seal (51) is of plastics material.
  21. A terminal according to either one of claims 19 and 20 characterised in that said body (50) and said seal (51) comprise in regard to one thereof an annular groove (56) and the other thereof an annular bead (60), the groove and the bead being complementary.
  22. A terminal according to any one of claims 19 to 21 characterised in that said body (50) and said seal (51) comprise means for assembling one to the other (58, 61) by latching engagement.
  23. A terminal according to any one of claims 1 to 22 characterised in that said threaded shank and said nut comprise means for the nut to be self-locking on the shank.
  24. A luminescent tube terminal element provided with means for connection to an electrical power supply cable comprising a cap (13; 113; 213) fitted on to a closed end of a casing (4; 104; 204) that said terminal element comprises and a nut-type terminal installed in said cap, characterised in that said nut-type terminal (14; 114; 214) is according to any one of ciaims 1 to 23.
  25. An element according to claim 24 characterised in that the screw (15; 115; 215) of said terminal comprises beyond the screwthreaded shank (30; 130; 230) a base portion (31; 131; 231) adapted to be fixed on said cap (13; 113; 213) and to be connected to a conductor wire (10) issuing from said terminal end.
  26. An element according to claim 25 characterised in that said base portion (31; 131; 231) comprises a recess (35; 135; 235) converging from the free end of said base portion towards a blind hole (36; 136; 236) oriented coaxially while a threaded hole (37; 137; 237) is provided between the blind hole and the side wall of said base portion.
  27. An element according to either one of claims 26 and 27 characterised in that said base portion (31; 131; 231) and said cap (13; 113; 213) have mutual angular positioning means (38; 44; 49).
EP19980402550 1997-10-16 1998-10-14 Electrical connection terminal and an end piece of a luminescent tube having such a terminal Expired - Lifetime EP0911915B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00121205A EP1067631B1 (en) 1997-10-16 1998-10-14 Element of terminal for luminescent tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9712983A FR2770039B1 (en) 1997-10-16 1997-10-16 ELECTRICAL CONNECTION TERMINAL AND LUMINESCENT TUBE TERMINAL ELEMENT COMPRISING THE SAME
FR9712983 1997-10-16

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP00121205A Division EP1067631B1 (en) 1997-10-16 1998-10-14 Element of terminal for luminescent tube

Publications (2)

Publication Number Publication Date
EP0911915A1 EP0911915A1 (en) 1999-04-28
EP0911915B1 true EP0911915B1 (en) 2002-01-09

Family

ID=9512322

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00121205A Expired - Lifetime EP1067631B1 (en) 1997-10-16 1998-10-14 Element of terminal for luminescent tube
EP19980402550 Expired - Lifetime EP0911915B1 (en) 1997-10-16 1998-10-14 Electrical connection terminal and an end piece of a luminescent tube having such a terminal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00121205A Expired - Lifetime EP1067631B1 (en) 1997-10-16 1998-10-14 Element of terminal for luminescent tube

Country Status (5)

Country Link
EP (2) EP1067631B1 (en)
DE (2) DE69806823T2 (en)
ES (2) ES2143447T3 (en)
FR (1) FR2770039B1 (en)
PT (2) PT1067631E (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2840118A1 (en) * 2002-05-21 2003-11-28 Gilbert Bisch Connection terminal for neon tube electrode, comprises lower skirt designed to fit over the electrode end and an upper section with means for tightening supply and electrode conductors
WO2003044905A2 (en) * 2001-11-19 2003-05-30 Gilbert Bisch Connection terminal for neon tube electrode and neon tube electrode equipped with same
FR2836294B1 (en) * 2002-02-18 2004-05-28 A V E N ELECTRICAL CONNECTION TERMINAL, PARTICULARLY FOR DISCHARGE LAMP TERMINAL ELEMENT
FR2841053B1 (en) * 2002-06-18 2004-09-10 Aupem Sefli LUMINESCENT TUBE TERMINAL ELEMENT
FR2841054B1 (en) * 2002-06-18 2004-09-10 Aupem Sefli LUMINESCENT TUBE TERMINAL, CORE RECEIVING BODY AND ASSEMBLY COMPRISING THE SAME
CN100377448C (en) * 2004-05-28 2008-03-26 鸿富锦精密工业（深圳）有限公司 Lamp tube connector
FR2887372B1 (en) * 2005-06-17 2007-09-28 Tce Diffusion Sarl SOLIDARITY ELECTRICAL CONNECTION PIPE OF A TUBE, IN PARTICULAR A GLASS TUBE FOR A DISCHARGE LAMP

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE365445A (en) *
DE69937C (en) * H. sanche, Doctor, 1030 West Fort Street, Detroit, Grafschaft Wayne, Michigan, V. St. A.\ Connection for electrical lines
US1701801A (en) * 1924-02-08 1929-02-12 Louis Van Gale Electric-wire terminal
FR628414A (en) * 1927-02-03 1927-10-24 Connection device for cables placed end to end
DE1641786U (en) * 1952-05-24 1952-07-31 Hoerner Fa Eugen FLIGHT TUBE CONNECTION.
GB888213A (en) * 1959-02-18 1962-01-31 Ass Elect Ind Improvements relating to electrical connecting devices
GB1385838A (en) * 1972-06-26 1975-03-05 Saab Scania Ab Lock nut
FR2697671B1 (en) * 1992-11-03 1995-01-06 Aven Discharge lamp of the tubular envelope type with metal base, and connection lug for such a discharge lamp.

Also Published As

Publication number Publication date
DE69806823T2 (en) 2002-12-05
DE69803425T2 (en) 2002-11-07
ES2143447T1 (en) 2000-05-16
PT1067631E (en) 2002-11-29
FR2770039B1 (en) 2000-01-28
PT911915E (en) 2002-06-28
EP0911915A1 (en) 1999-04-28
DE69806823D1 (en) 2002-08-29
FR2770039A1 (en) 1999-04-23
ES2143447T3 (en) 2002-08-16
EP1067631B1 (en) 2002-07-24
DE69803425D1 (en) 2002-02-28
ES2180493T3 (en) 2003-02-16
EP1067631A1 (en) 2001-01-10

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