EP1622224A1 - Electrical apparatus with automatic connection terminal - Google Patents

Electrical apparatus with automatic connection terminal Download PDF

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Publication number
EP1622224A1
EP1622224A1 EP05291591A EP05291591A EP1622224A1 EP 1622224 A1 EP1622224 A1 EP 1622224A1 EP 05291591 A EP05291591 A EP 05291591A EP 05291591 A EP05291591 A EP 05291591A EP 1622224 A1 EP1622224 A1 EP 1622224A1
Authority
EP
European Patent Office
Prior art keywords
housing
wall
lever
seat
terminal
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.)
Granted
Application number
EP05291591A
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German (de)
French (fr)
Other versions
EP1622224B1 (en
Inventor
Patrice Hamelin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SA
Legrand SNC
Legrand France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SA, Legrand SNC, Legrand France SA filed Critical Legrand SA
Publication of EP1622224A1 publication Critical patent/EP1622224A1/en
Application granted granted Critical
Publication of EP1622224B1 publication Critical patent/EP1622224B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means

Definitions

  • the invention relates to electrical devices comprising an insulating housing and an automatically connected terminal disposed in this housing.
  • German patent application 199 49 387 and the European patent application 0 327 703 already disclose such an apparatus constituting a terminal block, the terminal of which is formed by a rigid cage and a flexible member, the rigid cage. having a seat at an insertion opening of an electrical conductor, the flexible member having an elastic blade having an end edge facing the seat, the elastic blade being adapted to deform to leave the driver, when engaged in the housing by the insertion opening, insert between the seat and the end edge of the blade, and, if the driver is then urged to be removed from the housing, to wedge the conductor between the seat and the end edge of the slat.
  • the rigid cage comprises a passage window for a finger forming part of a lever for actuating the elastic blade, designed to move it away from the seat, this lever being molded in one piece with the housing and having an arm of which one end cooperates in the manner of a hinge with the rest of the housing while the other end carries the finger passing through the window of the cage, the lever being manceuvré by pressing the arm opposite the finger.
  • the cage of the terminal has a seat wall in which is formed the finger passage window of the lever while an inner surface of this wall forms the seat, the outer surface of the seat wall connecting, opposite the above-mentioned cable insertion opening, to a surface oriented transversely to the outer surface of the seat wall so that the angle between said outer surface and the transverse surface is salient .
  • the cross-sectional area is a wall for abutting a conductor inserted by another insertion opening disposed in the housing opposite the aforementioned insertion opening.
  • the transverse surface belongs to a wall of a recess for holding a portion of the flexible member.
  • the invention aims to provide an electrical appliance of the same kind, but simpler and more convenient to use.
  • the pivot pin of the lever is thus disposed at a particularly favorable location, both with regard to the leverage effect (ratio between the distance separating the pivot pin and the point of support on the lever by the operator and the distance separating the hinge pin and the point of contact with the elastic blade), as regards the orientation of the forces exerted between the lever and the elastic blade.
  • the apparatus according to the invention takes advantage of the conformation of the cage to operate the rotational mounting of the pin in conjunction with the housing.
  • the terminal block 1 illustrated in particular in FIGS. 1 to 3 comprises a housing 2, three terminals with automatic connection 3 and three operating levers 4.
  • the casing 2 illustrated in isolation in FIGS. 4 to 9, is made of electrically insulating molded plastic and of generally parallelepipedal shape. It has two rectangular main faces 10 and 11, and extending from one to the other of the short sides of the faces 10 and 11, two longitudinal rectangular lateral faces 12 and 13, and extending from one to the other of the long sides of the main faces 10 and 11, two transverse rectangular lateral faces 14 and 15.
  • the housing has a wall 16 and a gutter 17 connected to the wall 16.
  • the wall 16 is in the extension of the face 15, protruding from the main face 10.
  • Two tabs 18 extend the wall 16 overflowing the side faces 12 and 13.
  • the channel 17 has a U-shaped section and is centered on the wall in overflow thereof on the opposite side to the face 10.
  • Three housing 19 (two extremes and a central) similarly shaped and arranged side by side are formed in the housing 2.
  • the central housing is separated from the end housing by two partitions 20 extending on the one hand, the one to the other of the main faces 10 and 11, and secondly, from one to the other side faces 14 and 15.
  • Each housing 19 is open on all of its section in the face 15 and guard the same contour to a bottom wall which closes the housing 19 at the face 14.
  • Each bottom wall comprises, near the face 10, two through-holes 21, narrowing from the outside to the inside of the housing, and, close to the face 11, a recess 22 (FIGS. 8 and 20), located the inner side of the bottom wall, adapted to accommodate the end of a terminal 3.
  • Each wall located between a housing 19 and the main face 11 has a groove 23 parallel to the small sides of the main faces, centered with respect to the housing 19, a first portion of which extends from the face 15 to a shoulder 24, and a second section extends from the shoulder 24 to the inner surface of the bottom wall, the first section being deeper than the second section.
  • the groove 23 is bordered by a small rib 25.
  • Each wall located between an extreme housing and a longitudinal lateral face has on the outer side a notch 26 for assembly to a housing envelope of the terminal block 1 not shown in the drawings, other than a low wall 105
  • the visible sides of these walls and the two sides of each partition 20 comprise three ribs 27, 28 and 29 parallel to the grooves 23.
  • Each wall located between a housing 19 and the main face 10 has a centered T-shaped opening (FIG. 7), having a longitudinal branch 30 parallel to the short sides of the main faces 10 and 11 and a transverse branch 31 parallel to the major sides of the main faces 10 and 11.
  • the branch 30 is located relative to the branch 31 of the side of the face 14.
  • the branch 30 is bordered by two wall portions 32 and 33 of rectangular shape belonging to the wall located between the housing 19 and the face 10.
  • a set of ribs 36 along the T-shaped opening On the outer side of this wall, are provided a set of ribs 36 along the T-shaped opening, a convex slice rib 38 to the right of each portion of the branch 31 located on either side of the branch 30, each rib 38 being parallel to the branch 30, and an inclined abutment surface 37 of the folded lever key, above the holes 21 at the end of the leg 30 opposite the branch 31.
  • the wall portions 32 and 33 each have a recess 39 (FIG. 9) with a flat bottom connecting on the side that is seen on the left in FIG. 9 to an inclined surface 34 extending to the outlet.
  • the surface 34 forms a guide ramp of the hinge pin of a lever 4 to the recess 39 during assembly while the surface 35 forms a stop for holding the trunnion. It will be observed that the recess 39 is placed just opposite the convex rib 38.
  • Terminal 3 has a flexible member 40 partially surrounded by a rigid cage 50.
  • the flexible member 40 is formed of an elongate elastic metal strip folded at both ends, forming a flat central section 41 connected by two curved sections 42 and 43 of respectively U-shaped and V-shaped profiles with two inclined portions 44 and 45.
  • Each curved section 42, 43 and each inclined section 44, 45 comprises at its center a slot which divides it longitudinally into two elastic strips 44 ', 44 "on the side which is seen on the right in FIG. 14 and two lamellae 45 ', 45 "on the side you see on the left.
  • the flexible member 40 further comprises in its central flat section 41 a flap 46 cut by cutting so as to be projecting from the opposite side to the inclined portions 44 and 45, centered relative to its width, approximately to the right of the inclined section 45, and oriented along a generally transverse direction to this section.
  • the cage 50 comprises a sole 51, two cheeks 52 and a cap 53.
  • This cage 50 surrounds the flexible member 40 with the sole 51 facing the face of the central section opposite the sections 42 and 43, with the cheeks 52 opposite the slices of the inclined section 45 and the central section 41, and with the cap 53 opposite the face of the inclined sections 44 and 45 opposite the section 41.
  • the soleplate 51 comprises a plate 54 and fixing lugs 55 and 56.
  • the plate 54 has the same width as the flexible member 40 and is in contact therewith about three quarters of its length leaving the curved section 42 .
  • the flexible member 40 is pressed on the plate 54 by the fixing lugs 55 and 56 folded towards the inside of the cage and by the cheeks 52.
  • a channel 57 is formed in the plate 54 being oriented in the longitudinal direction.
  • the internal face 58 of the channel 57 is intended to serve as a seat for a conductor received in the channel 57 and retained therein by the end edge 49 of the tab 46.
  • Each cheek 52 is integral with the sole 51 and has a support wall 59 of the cap 53 and a nose 60 protruding in the extension of the wall 59 towards the inclined section 44.
  • the support walls 59 are placed on either side of the inclined portion 45 and the portion of the central section 41 facing the inclined portion 45.
  • Each support wall 59 on its upper part comprises a positioning notch 62 and a notch 61 of the cap 53 to the cheeks 52.
  • the slices of the walls 59 placed under the nose 60 are inclined in a direction transverse to the direction of insertion of a conductor such as 102 ( 23) and have mid-length, facing the inclined portion 44, a lug 63 folded towards the inside of the cage, forming a stop lug inserted rigid conductor.
  • the cap 53 comprises a seat wall 67 of generally rectangular shape, connecting transversely to each other the support walls 59, and a seat wall 68 inclined in the direction of insertion of the conductor and of generally rectangular shape, connected to the seat wall 67 by a transverse wall 69.
  • the inclination of the seat wall 68 causes the angle between the outer surface 72 of the wall 68 and the outer surface 73 of the transverse wall 69 to protrude while the angle between the surface 73 and the outer surface 65 of the wall 67 is reentrant.
  • the wall 67 whose inner surface 70 forms, as will be seen hereinafter in support of Figure 23, a seat for the driver placed between the wall 67 and the end edge 48 '(respectively 48 " ) of the lamella 45 '(respectively 45 "), is held cheeks 52 by means of two lugs 64 engaged in the notches 62 and two pins 80 crimped in the notches 61.
  • the inner surface 71 of the inclined seat wall 68 forms a seat for the conductor placed between the wall 68 and the end edge 47 '(respectively 47 ") of the lamella 44' (44" respectively).
  • the lower slices 66 of the noses 60 cooperate to bear with the outer surface 72 of the wall 68 over half of its length.
  • the wall 68 has, in its center, a window 74 serving, as will be seen below, the passage of the rigid finger of the lever 4, of rectangular shape occupying about one third of the surface of the wall 68 and delimited by two large sides 75 and 76, by a small side 77 opposite the wall 69 and the other side 78, the small side 77 being generally at the same level and in the extension of the wall 67.
  • Each portion of the wall 68 along a large side 75, 76 of the window 74, is longitudinally connected to a rib 79 projecting towards the sole 51 and abutting against the end edges 47 ', 47 "of the elastic strips 44', 44" so that the conductor introduced between a strip and the seat is guided in its movement to the stopper ear 63 by the rib 79 corresponding.
  • the width of the tongue 81 '(resp 81 ") is slightly greater than the maximum diameter of the conductors intended to be received in the terminals with automatic connection.
  • the lever 4 comprises a key 90 connected by an arm 91 to a finger 92 and to a pivot pin 93.
  • the key 90 comprises a support wall 94 of rectangular shape in the extension and overhang on each side of the arm 91, and connected generally transversely to this wall, a shoulder wall 95 of rectangular shape connected transversely to the arm 91 of the lever and overflowing each side of this arm.
  • the face 97 of the shoulder wall 95 facing the trunnion 93, in the assembled state, as will be seen below, is of concave shape whose center of curvature coincides with the center of curvature of the convex ribs 38 of the housing 2, itself confused with the center of curvature of the trunnion 93.
  • the arm 91 connects at its opposite end to the key 90, the trunnion 93 and the finger 92.
  • the finger 92 is delimited by a curved convex curved surface 98 adapted to cooperate with the elastic strips, connected on one side to a straight surface 99 whose junction with the cam surface 98 points outwardly of the finger 92, this right surface 99 being connected to the arm 91 by a convex surface 100 whose junction with the straight surface 99 and the junction with the arm 91 point to the inside of the finger 92, and, on the other side, to a concave surface 101 connecting the finger 92 to the trunnion 93, whose junction with the cam surface 98 points outwardly of the finger 92 and whose junction with the trunnion 93 points inwards.
  • the trunnion 93 comprises on each side of the arm 91 a cylindrical pin and, between the two pins, an arcuate portion whose outer surface is in line with the outer surface of the two pins.
  • each terminal 3 is inserted in the direction of the arrow A in a housing 19 of the insulating housing 2 on the side of the face 15, the curved section 42 of the flexible member 40 entering first into the housing 19
  • the groove 57 is housed in the groove portion 23 located between the face 15 and the shoulder 24, the tongues 27, 28 and 29 provide on each side of the terminal 3 its holding and its guide in the housing 19.
  • the terminal 3 is not pressed into the housing 19 until the channel 57 comes against the shoulder 24, but is placed in an intermediate position or the transverse wall 69 is at the right of the transverse branch 31 of the opening in T.
  • the lever 4 can then be inserted in the direction of the arrow B in the insulating housing 2, the finger 92 and the hinge pin 93 pass through the housing 2 respectively by the longitudinal branch 30 and by the transverse branch 31 of the opening
  • the finger 92 then passes through the window 74 of the terminal 3 and is guided by being supported by the cam surface 98 on each of the slats of the inclined section 44, centered with respect to the slot separating them, so that the cam surface 98 passes partly under the short side 77 of the window 74, the right surface 99 abuts against the wall bordering the short side 77.
  • the pivot pin 93 is housed in the area facing the surface 72 of the wall 68 and facing the outer surface 73 of the wall 69.
  • the terminal 3 is then pressed into the final position (gutter 57 abuts against the shoulder 24), the hinge pin 93 is then guided by the ramps 34 to the recesses 39 and in them, to the abutment surfaces 35 of the insulating housing 2, the curved section 42 being housed meanwhile in the recess 22.
  • the terminal block 1 obtained is ready to be snapped into a receiving envelope (also resulting from a molding of insulating material) by the This envelope comprises a blocking wall 105, visible in FIGS. 22 and 23, arranged facing the slideway 57 once the terminal block has been assembled to the casing, able to prevent the terminals 3 from moving in the opposite direction. inverse of the arrow A during the activation of the levers 4.
  • the stripped end 103 of a conductor 102 is introduced into the electrical apparatus through one of the holes 21, the narrowing of the hole 21 having the effect of guiding the stripped end 103 towards the terminal 3 while preventing by this narrowing the insertion into the terminal of the insulator 104 surrounding the conductive core of the cable.
  • the stripped end 103 encounters the corresponding strip 44 '(respectively 44 ") and causes it to flex so that it leaves the end 103 of the conductor to be inserted, parallel to the corresponding rib 79, between the part of the end edge 47 'located at the end of the tongue 81' (respectively 81 ") of the strip 44 '(respectively 44") and the wall 68.
  • the driving movement of the driver continues for example until the end of the conductor comes into abutment against the wall of the corresponding lug 63.
  • the inner surface 71 of the wall 68 facing the inclined portion 44 forms a seat for the driver against which it is held by the blade 44 '( 44 ") which plates it against the surface 71.
  • the operator acts on the lever 4 by exerting a force generally oriented transversely to the bearing wall 94.
  • the pin 93 being held in position in the space defined by the terminal 3 and the housing 2, the force exerted will cause the pivoting of the lever 4 and thus a bearing action of the finger 92 on the inclined section 44.
  • the pivoting is made possible by the shape of the finger 92, the concave surface 101 allowing the action of pivoting without coming into abutment with the small side 78 of the window 74, the rounded convex surface 100 allowing the pivoting action without coming back into place. stop with the small side 77 of the window 74.
  • the cam surface 98 will then force the slats 44 'and 44 "so as to move them away from the seat 71 until the end edge 47' (respectively 47") of the slat 44 '(44 “respectively) ) is no longer in contact with the driver, whereby the driver can be removed from the automatic connection terminal in which he was engaged.
  • connection terminal 3 a flexible conductor
  • the arrangement of the finger 92 with respect to the automatically-connected terminal is such that the lever by its finger has a joint action on the lamellae 44 'and 44 "and thus causes simultaneously the spacing of the end edges 47 'and 47 "of the lamellae 44' and 44" of the seat 71.
  • the action of the operator on the lever causes a pivoting action of the finger which tends to move the straight surface 99 of the finger of the small side 77 and which tends to bring the concave surface 101 of the finger of the small side 78 to bring the stretch inclined 44 from a first deflection position (Fig. 20) to a second deflection position (Fig. 21).
  • the cam surface 98 remains in constant contact with the inclined section 44 and exerts on it an actuating force generally normal to the inclined section 44 whatever its position of deflection.
  • the inclined portion 44 flexes progressively so that the angle formed between the line of action of the reaction force of the inclined section 44 to the force exerted by the cam surface 98 the finger 92 (maintained normal to the section 44 through the cam surface 98) and the line joining the center of the trunnion 93 at the point of contact between the cam surface 98 and the inclined section 44, decreases gradually.
  • the component of the force exerted on the section 44 from the reaction of the insulating housing 2 on the trunnion 93 of the lever 4 support against the abutment surfaces 35 increases with the course of the race which causes a decrease in the intensity of the effort to be provided by the operator during the lever stroke to a minimum value obtained at the end of the race , in the stop position of the button of the lever 4 against the abutment surface 37 (reduction of the end-of-stroke force), despite the decrease in the leverage effect.
  • the curved section 43 and the inclined section 45 of the flexible member 40 are replaced by a transverse section 107 provided with an elastic tab 108 facing the central section 41, an opening 110 for passing through.
  • a conductor 106 to be connected being formed between the central section 41 and the transverse section 107.
  • the tab 108 When introducing a conductor 106, the tab 108 flexes to allow the penetration of the conductor 106 while if the conductor is urged to be removed from the housing 2, the tab 108, at its end 109, wedges the conductor 106 against the central section 41 bearing itself on the sole 51.
  • the conductor 106 can thus be placed on the device without having to be bent twice as in the embodiment illustrated in the preceding figures (see more particularly Figures 22 and 23).

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The apparatus has an automatic connection terminal (3) placed in a joint casing (2), and having an elastic strip with an end stop opposite to a base of a rigid cage. The cage has a wall (68) in which a window for passage of an arm of an operating lever (4) is arranged. The lever has a joint trunnion (93) maintained in position around its axis by an outer surface of the wall, a transversal surface (73) and a stop surface of the casing.

Description

L'invention a trait aux appareils électriques comportant un boîtier isolant et une borne à connexion automatique disposée dans ce boîtier.The invention relates to electrical devices comprising an insulating housing and an automatically connected terminal disposed in this housing.

On connaît déjà, notamment par la demande de brevet allemand 199 49 387 et par la demande de brevet européen 0 327 703, un tel appareil constituant un bornier, dont la borne est formée par une cage rigide et par un membre flexible, la cage rigide présentant un siège au niveau d'une ouverture d'insertion d'un conducteur électrique, le membre flexible comportant une lamelle élastique ayant une arête d'extrémité en regard de ce siège, la lamelle élastique étant adaptée à se déformer pour laisser le conducteur, lorsqu'il est engagé dans le boîtier par l'ouverture d'insertion, s'insérer entre le siège et l'arête d'extrémité de la lamelle, et, si le conducteur est ensuite sollicité à être retiré du boîtier, pour coincer le conducteur entre le siège et l'arête d'extrémité de la lamelle.German patent application 199 49 387 and the European patent application 0 327 703 already disclose such an apparatus constituting a terminal block, the terminal of which is formed by a rigid cage and a flexible member, the rigid cage. having a seat at an insertion opening of an electrical conductor, the flexible member having an elastic blade having an end edge facing the seat, the elastic blade being adapted to deform to leave the driver, when engaged in the housing by the insertion opening, insert between the seat and the end edge of the blade, and, if the driver is then urged to be removed from the housing, to wedge the conductor between the seat and the end edge of the slat.

La cage rigide comporte une fenêtre de passage pour un doigt faisant partie d'un levier de manoeuvre de la lamelle élastique, prévu pour écarter cette dernière du siège, ce levier étant moulé d'une seule pièce avec le boîtier et présentant un bras dont une extrémité coopère à la façon d'une charnière avec le reste du boîtier tandis que l'autre extrémité porte le doigt passant par la fenêtre de la cage, ce levier étant manceuvré par appui sur le bras à l'opposé du doigt.The rigid cage comprises a passage window for a finger forming part of a lever for actuating the elastic blade, designed to move it away from the seat, this lever being molded in one piece with the housing and having an arm of which one end cooperates in the manner of a hinge with the rest of the housing while the other end carries the finger passing through the window of the cage, the lever being manceuvré by pressing the arm opposite the finger.

Dans chacun des deux documents susmentionnés, la cage de la borne présente une paroi de siège dans laquelle est ménagée la fenêtre de passage du doigt du levier tandis qu'une surface interne de cette paroi forme ce siège, la surface externe de la paroi de siège se raccordant, à l'opposé de l'ouverture d'insertion de câble susmentionnée, à une surface orientée transversalement par rapport à la surface externe de la paroi de siège de sorte que l'angle entre cette surface externe et la surface transversale soit saillant.In each of the two aforementioned documents, the cage of the terminal has a seat wall in which is formed the finger passage window of the lever while an inner surface of this wall forms the seat, the outer surface of the seat wall connecting, opposite the above-mentioned cable insertion opening, to a surface oriented transversely to the outer surface of the seat wall so that the angle between said outer surface and the transverse surface is salient .

Dans la demande de brevet allemand 199 49 387, la surface transversale appartient à une paroi servant de butée à un conducteur inséré par une autre ouverture d'insertion disposée dans le boîtier à l'opposé de l'ouverture d'insertion susmentionnée.In German Patent Application 199 49 387, the cross-sectional area is a wall for abutting a conductor inserted by another insertion opening disposed in the housing opposite the aforementioned insertion opening.

Dans la demande de brevet européen 0 327 703, la surface transversale appartient à une paroi d'un renfoncement servant à maintenir une portion du membre flexible.In European Patent Application 0 327 703, the transverse surface belongs to a wall of a recess for holding a portion of the flexible member.

L'invention vise à fournir un appareil électrique du même genre, mais plus simple et plus commode à utiliser.The invention aims to provide an electrical appliance of the same kind, but simpler and more convenient to use.

Elle propose à cet effet un appareil électrique comportant un boîtier isolant et une borne à connexion automatique disposée dans ledit boîtier, lequel présente une ouverture d'insertion d'un conducteur électrique suivant une direction prédéterminée, ladite borne étant formée par une cage rigide et par un membre flexible, la cage rigide présentant un siège au niveau de la dite ouverture d'insertion, le membre flexible comportant une lamelle élastique ayant une arête d'extrémité en regard dudit siège, ladite lamelle élastique étant adaptée à se déformer pour laisser ledit conducteur, lorsqu'il est engagé dans ledit boîtier par ladite ouverture d'insertion, s'insérer entre ledit siège et ladite arête d'extrémité de la lamelle et, si ledit conducteur est ensuite sollicité à être retiré dudit boîtier, pour coincer le conducteur entre ledit siège et ladite arête d'extrémité de la lamelle, ladite cage rigide comportant une fenêtre de passage pour un doigt faisant partie d'un levier de manoeuvre de ladite lamelle élastique, prévu pour écarter cette dernière dudit siège, ladite cage présentant une paroi, dite paroi de siège, dans laquelle est ménagée ladite fenêtre tandis qu'une surface interne de cette paroi forme ledit siège, la surface externe de ladite paroi de siège se raccordant, à une extrémité opposée à ladite ouverture d'insertion, à une surface orientée transversalement par rapport à ladite surface externe de sorte que l'angle entre la surface externe de la paroi de siège et ladite surface transversale soit saillant ; caractérisé en ce que :

  • ledit boîtier comporte une surface de butée disposée en regard de la surface externe de la paroi de siège et de ladite surface transversale ; et
  • ledit levier est une pièce distincte dudit boîtier et comporte un tourillon d'articulation autour duquel il est adapté à pivoter, ledit tourillon étant maintenu en position autour de son axe par ladite surface externe de ladite paroi de siège, par ladite surface transversale et par ladite surface de butée.
It proposes for this purpose an electrical apparatus comprising an insulating casing and an automatically connected terminal disposed in said casing, which has an opening for insertion of an electrical conductor in a predetermined direction, said terminal being formed by a rigid cage and by a flexible member, the rigid cage having a seat at said insertion opening, the flexible member comprising an elastic blade having an end edge facing said seat, said elastic blade being adapted to deform to leave said driver when engaged in said housing by said insertion opening, inserting between said seat and said end edge of the sipe and, if said conductor is then urged to be removed from said housing, to wedge the conductor between said seat and said end edge of the lamella, said rigid cage having a passage window for a d groove forming part of an actuating lever of said elastic blade, designed to separate it from said seat, said cage having a wall, said seat wall, in which said window is formed while an inner surface of said wall forms said seat, the outer surface of said seat wall connecting, at an end opposite said insertion opening, to a surface oriented transversely to said outer surface so that the angle between the outer surface of the seat wall and said transverse surface is salient; characterized in that
  • said housing has an abutment surface disposed facing the outer surface of the seat wall and said transverse surface; and
  • said lever is a separate part of said housing and has a pivot pin about which it is adapted to pivot, said pin being held in position about its axis by said outer surface of said seat wall, said transverse surface and said stop surface.

Le tourillon d'articulation du levier est ainsi disposé à un emplacement particulièrement favorable, tant en ce qui concerne l'effet de levier (rapport entre la distance séparant le tourillon d'articulation et le point d'appui sur le levier par l'opérateur et la distance séparant le tourillon d'articulation et le point de contact avec la lamelle élastique), qu'en ce qui concerne l'orientation des efforts s'exerçant entre le levier et la lamelle élastique.The pivot pin of the lever is thus disposed at a particularly favorable location, both with regard to the leverage effect (ratio between the distance separating the pivot pin and the point of support on the lever by the operator and the distance separating the hinge pin and the point of contact with the elastic blade), as regards the orientation of the forces exerted between the lever and the elastic blade.

On observera au surplus que l'appareil selon l'invention tire parti de la conformation de la cage pour opérer le montage à rotation du tourillon conjointement avec le boîtier.It will further be observed that the apparatus according to the invention takes advantage of the conformation of the cage to operate the rotational mounting of the pin in conjunction with the housing.

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

  • ledit boîtier isolant présente un logement pour ladite borne, muni d'une ouverture, pour le passage dudit levier de manoeuvre, ayant une forme en T ; et optionnellement
  • la branche transversale de ladite ouverture en forme de T est adaptée à permettre le passage dudit tourillon dudit levier ; et/ou
  • la branche longitudinale de ladite ouverture en T est bordée de chaque côté par une paroi présentant du côté interne un renfoncement auquel appartient ladite surface de butée, laquelle est disposée à une extrémité opposée à la branche transversale de ladite ouverture en T ; et optionnellement
  • une surface inclinée est prévue entre ledit renfoncement et ladite branche transversale ; et/ou
  • ladite surface de butée présente une forme concave ; et/ou
  • ledit levier comporte une touche, disposée à l'extérieur dudit boîtier, reliée audit doigt par un bras plus étroit que ladite touche, laquelle comporte une paroi d'épaulement en débord de chaque côté dudit bras, ledit boîtier isolant présentant un logement pour ladite borne muni d'une ouverture de passage dans laquelle est logé ledit bras ; et optionnellement
  • chaque dite surface d'épaulement du levier est incurvée tandis que ladite ouverture est bordée de chaque côté par une nervure présentant une tranche convexe de même courbure que celle de la surface d'épaulement correspondante de la touche du levier, afin de guider le levier par rapport au boîtier lors d'un mouvement de pivotement du levier ; et/ou
  • ledit doigt présente une surface de came convexe par laquelle il est en appui contre ladite lamelle ; et optionnellement
  • ledit doigt présente une surface droite se raccordant par une extrémité à une extrémité de ladite surface de came avec leur jonction qui pointe vers l'extérieur ; et/ou
  • ledit doigt présente une surface concave dont une extrémité se raccorde à une extrémité de ladite surface de came avec leur jonction qui pointe vers l'extérieur ; et/ou
  • ledit levier comporte une touche reliée audit doigt par un bras plus étroit que ladite touche, ledit tourillon comportant de chaque côté dudit bras un pion cylindrique et, entre les deux pions, une portion à section en arc dont la surface externe est dans le prolongement de la surface externe de chacun des deux pions ; et/ou
  • ledit levier comporte une touche disposée à l'extérieur dudit boîtier, lequel présente une surface de butée de fin de course pour ladite touche ; et optionnellement
  • dans une position de fin de course dudit levier où ladite touche est en appui contre ladite surface de butée, il existe une force de rappel dudit levier; et optionnellement
  • ladite force de rappel est plus petite que la force à exercer pour déplacer ledit levier à partir d'une position de repos que prend ledit levier en l'absence de sollicitation; et optionnellement
  • la force à exercer sur ledit levier pour passer de ladite position de repos à ladite position de fin de course décroît progressivement ; et/ou
  • ladite cage rigide de ladite borne comporte une semelle, deux joues et une coiffe, avec lesdites joues qui sont disposées latéralement et qui s'étendent chacune de ladite semelle à ladite coiffe, ladite paroi de siège appartenant à ladite coiffe ; et optionnellement
  • ladite coiffe comporte une paroi transversale à laquelle appartient ladite surface transversale et une autre paroi de siège, à laquelle se raccorde ladite paroi transversale ; et/ou
  • chaque dite joue comporte un nez saillant au droit de ladite paroi de siège ; et/ou
  • ladite semelle de la cage rigide présente une gouttière tandis que ledit boîtier comporte pour ladite borne un logement présentant une paroi munie d'une rainure de réception de ladite gouttière; et optionnellement
  • ladite rainure présente un épaulement contre lequel vient buter une tranche de ladite gouttière ; et/ou
  • ladite borne comporte un membre flexible présentant un tronçon central se raccordant à une extrémité à un tronçon incurvé, lequel se raccorde, à l'opposé dudit tronçon central, à un tronçon incliné disposé en regard dudit siège ; et optionnellement
  • ledit tronçon central se raccorde à chaque extrémité à un tronçon incurvé se raccordant, à l'opposé dudit tronçon central, à un tronçon incliné dont l'un est disposé en regard dudit siège et l'autre en regard d'un autre siège que comporte ladite cage; et alternativement
  • ledit tronçon central se raccorde, à son extrémité opposée audit tronçon incurvé, à un tronçon transversal muni d'une patte élastique en regard du tronçon central, une ouverture de passage d'un câble à connecter étant ménagée à la jonction entre le tronçon central et le tronçon transversal; et/ou
  • ledit boîtier comporte trois dites bornes, chacune disposée dans un logement respectif, un dit levier étant prévu pour chaque dite borne; et/ou
  • ledit boîtier présente une forme générale parallélépipédique avec un muret saillant disposé dans le prolongement de l'une de ses faces ; et optionnellement
  • une gouttière se raccorde audit muret ; et/ou
  • ledit boîtier comporte, dans le prolongement dudit muret parallèlement à ladite face dans le prolongement de laquelle est situé ledit muret, de chaque côté, une patte de guidage saillant par rapport à une respective autre face dudit boîtier; et/ou
  • ledit boîtier présente au moins une encoche d'assemblage à une enveloppe d'accueil ; et/ou
  • ledit appareil comporte en outre une enveloppe d'accueil présentant un muret de butée en regard de ladite borne.
According to preferred features, for reasons of simplicity and convenience both in manufacture and use:
  • said insulative housing has a housing for said terminal, provided with an opening, for the passage of said operating lever, having a T-shape; and optionally
  • the transverse branch of said T-shaped opening is adapted to allow the passage of said trunnion of said lever; and or
  • the longitudinal branch of said T-shaped opening is bordered on each side by a wall having on the inner side a recess to which said abutment surface belongs, which is disposed at an end opposite to the transverse branch of said T-shaped opening; and optionally
  • an inclined surface is provided between said recess and said transverse branch; and or
  • said abutment surface has a concave shape; and or
  • said lever comprises a key, disposed outside said housing, connected to said finger by a narrower arm than said key, which has a shoulder wall protruding from each side of said arm, said insulating housing having a housing for said terminal provided with a passage opening in which said arm is housed; and optionally
  • each said shoulder surface of the lever is curved while said opening is bordered on each side by a rib having a convex edge of the same curvature as that of the corresponding shoulder surface of the lever key, to guide the lever by relative to the case during a pivoting movement of the lever; and or
  • said finger has a convex cam surface by which it bears against said blade; and optionally
  • said finger has a straight surface connected at one end to one end of said cam surface with their junction pointing outwardly; and or
  • said finger has a concave surface one end of which connects to one end of said cam surface with their junction pointing outwardly; and or
  • said lever comprises a key connected to said finger by a narrower arm than said key, said trunnion comprising on each side of said arm a cylindrical pin and, between the two pins, a section with an arcuate section whose external surface is in the extension of the outer surface of each of the two pawns; and or
  • said lever has a key disposed outside said housing, which has an end stop surface for said key; and optionally
  • in an end position of said lever where said key bears against said abutment surface, there is a restoring force of said lever; and optionally
  • said restoring force is smaller than the force to be exerted to move said lever from a rest position that said lever takes in the absence of stress; and optionally
  • the force to be exerted on said lever to move from said rest position to said end position gradually decreases; and or
  • said rigid cage of said terminal comprises a sole, two cheeks and a cap, with said cheeks which are arranged laterally and which extend each of said soleplate to said cap, said seat wall belonging to said cap; and optionally
  • said cap comprises a transverse wall to which said transverse surface belongs and another seat wall, to which said transverse wall is connected; and or
  • each said cheek comprises a protruding nose to the right of said seat wall; and or
  • said sole of the rigid cage has a gutter while said housing comprises for said terminal a housing having a wall provided with a groove for receiving said gutter; and optionally
  • said groove has a shoulder against which abuts a slice of said channel; and or
  • said terminal comprises a flexible member having a central section connecting at one end to a curved section, which is connected, opposite said central section, to an inclined section disposed facing said seat; and optionally
  • said central section is connected at each end to a curved section connecting, opposite said central section, to an inclined section, one of which is arranged facing said seat and the other facing another seat that comprises said cage; and alternatively
  • said central section connects, at its end opposite to said curved section, to a transverse section provided with an elastic tab facing the central section, a passage opening of a cable to be connected being provided at the junction between the central section and the transverse section; and or
  • said housing comprises three said terminals, each disposed in a respective housing, a said lever being provided for each said terminal; and or
  • said casing has a generally parallelepipedal shape with a projecting wall disposed in the extension of one of its faces; and optionally
  • a gutter connects to said wall; and or
  • said housing comprises, in the extension of said wall parallel to said face in the extension of which is located said wall, on each side, a guide tab projecting relative to a respective other face of said housing; and or
  • said housing has at least one assembly slot to a home envelope; and or
  • said apparatus further comprises a home envelope having a stop wall facing said terminal.

Les caractéristiques et avantages de l'invention ressortiront de la description qui suit, donnée à titre d'exemple préféré, mais non limitatif, en référence aux dessins annexés, sur lesquels :

  • La figure 1 est une vue en perspective d'un bornier conforme à l'invention ;
  • la figure 2 est une vue similaire à la figure 1 mais en éclaté ;
  • la figure 3 est une vue similaire à la figure 2 mais prise sous un angle diagonalement opposé ;
  • les figures 4 et 5 sont des vues similaires respectivement à la figure 2 et à la figure 3, mais présentant isolément le boîtier que comporte le bornier illustré ;
  • les figures 6 et 7 sont respectivement une vue en élévation de ce boîtier prise du coté qu'on voit en avant sur la figure 5 et une vue en plan prise de dessus ;
  • la figure 8 est une vue en élévation-coupe du boîtier prise selon la ligne VIII-VIII de la figure 6 ;
  • la figure 9 est une vue agrandie du détail repéré par IX sur la figure 8 ;
  • les figures 10 et 11 sont respectivement une vue en plan de dessus du bornier tel qu'on le voit sur la figure 1 et une vue en élévation prise du coté que l'on y voit à droite ;
  • la figure 12 est une vue en élévation-coupe du bornier prise selon la ligne XII-XII de la figure 10 ;
  • la figure 13 est une vue en perspective présentant isolément la borne à connexion automatique que comporte le bornier illustré ;
  • les figures 14, 15 et 16 sont respectivement une vue en plan de dessus de cette borne telle qu'on la voit sur la figure 13, une vue en élévation prise du coté qu'on y voit à droite et une vue en élévation prise du coté qu'on y voit à gauche ;
  • la figure 17 est une vue en élévation-coupe de la borne prise selon la ligne XVII-XVII de la figure 14 ;
  • les figures 18 et 19 sont des vues présentant isolément le levier que comporte le bornier, illustré respectivement en élévation et en perspective ;
  • les figures 20 et 21 sont des vues en élévation-coupe du bornier prises respectivement selon la ligne XX-XX et selon la ligne XXI-XXI de la figure 11;
  • les figures 22 et 23 sont des vues en élévation-coupe du bornier prise selon la ligne XXII-XXII de la figure 11 avec en outre, respectivement, un conducteur inséré dans la borne du coté opposé au levier et deux conducteurs dont un est inséré dans la borne du coté opposé au levier et l'autre est inséré dans la borne du coté du levier ; et
  • la figure 24 est une vue similaire à la figure 22 mais pour un bornier comportant une borne à connexion automatique conformée différemment.
The features and advantages of the invention will emerge from the description which follows, given by way of a preferred but nonlimiting example, with reference to the appended drawings, in which:
  • Figure 1 is a perspective view of a terminal block according to the invention;
  • Figure 2 is a view similar to Figure 1 but exploded;
  • Figure 3 is a view similar to Figure 2 but taken at a diagonally opposite angle;
  • Figures 4 and 5 are views similar respectively to Figure 2 and Figure 3, but having in isolation the housing that includes the illustrated terminal block;
  • Figures 6 and 7 are respectively an elevational view of the housing taken from the side seen in front in Figure 5 and a plan view taken from above;
  • Figure 8 is a sectional elevational view of the housing taken along the line VIII-VIII of Figure 6;
  • Figure 9 is an enlarged view of the detail indicated by IX in Figure 8;
  • Figures 10 and 11 are respectively a top plan view of the terminal block as seen in Figure 1 and an elevational view taken from the side that we see on the right;
  • Figure 12 is a sectional elevational view of the terminal block taken along the line XII-XII of Figure 10;
  • Figure 13 is a perspective view in isolation showing the self-connecting terminal that includes the illustrated terminal block;
  • FIGS. 14, 15 and 16 are respectively a top plan view of this terminal as seen in FIG. 13, an elevational view taken from the side seen on the right and an elevational view taken from FIG. on the left side;
  • Figure 17 is a sectional elevational view of the terminal taken along the line XVII-XVII of Figure 14;
  • Figures 18 and 19 are views having in isolation the lever that comprises the terminal, respectively illustrated in elevation and in perspective;
  • Figures 20 and 21 are sectional elevational views of the terminal taken respectively along the line XX-XX and along line XXI-XXI of Figure 11;
  • FIGS. 22 and 23 are sectional elevation views of the terminal block taken along the line XXII-XXII of FIG. 11, in addition, respectively, a conductor inserted into the terminal on the opposite side of the lever and two conductors, one of which is inserted into the terminal on the opposite side to the lever and the other is inserted into the terminal on the side of the lever; and
  • Figure 24 is a view similar to Figure 22 but for a terminal having a self-connecting terminal shaped differently.

Le bornier 1 illustré en particulier sur les figures 1 à 3 comporte un boîtier 2, trois bornes à connexion automatique 3 et trois leviers de manoeuvre 4.The terminal block 1 illustrated in particular in FIGS. 1 to 3 comprises a housing 2, three terminals with automatic connection 3 and three operating levers 4.

Le boîtier 2, illustré isolément sur les figures 4 à 9, est en matière plastique moulée isolante sur le plan électrique et de forme générale parallélépipédique. Il présente deux faces principales rectangulaires 10 et 11, et, s'étendant de l'un à l'autre des petits cotés des faces 10 et 11, deux faces latérales rectangulaires longitudinales 12 et 13, et, s'étendant de l'un à l'autre des grands cotés des faces principales 10 et 11, deux faces latérales rectangulaires transversales 14 et 15.The casing 2, illustrated in isolation in FIGS. 4 to 9, is made of electrically insulating molded plastic and of generally parallelepipedal shape. It has two rectangular main faces 10 and 11, and extending from one to the other of the short sides of the faces 10 and 11, two longitudinal rectangular lateral faces 12 and 13, and extending from one to the other of the long sides of the main faces 10 and 11, two transverse rectangular lateral faces 14 and 15.

En outre des six faces susmentionnées, le boîtier présente un muret 16 et une gouttière 17 reliée au muret 16.In addition to the six aforementioned faces, the housing has a wall 16 and a gutter 17 connected to the wall 16.

Le muret 16 est dans le prolongement de la face 15, en débord par rapport à la face principale 10. Deux pattes 18 prolongent le muret 16 en débord des faces latérales 12 et 13.The wall 16 is in the extension of the face 15, protruding from the main face 10. Two tabs 18 extend the wall 16 overflowing the side faces 12 and 13.

La gouttière 17 a une section en forme de U et est centrée sur le muret en débord de celui-ci du coté opposé à la face 10.The channel 17 has a U-shaped section and is centered on the wall in overflow thereof on the opposite side to the face 10.

Trois logements 19 (deux extrêmes et un central) conformés de la même façon et disposés côte à côte sont ménagés dans le boîtier 2. Le logement central est séparé des logements extrêmes par deux cloisons 20 s'étendant d'une part, de l'une à l'autre des faces principales 10 et 11, et d'autre part, de l'une à l'autre des faces latérales 14 et 15. Chaque logement 19 est ouvert sur la totalité de sa section dans la face 15 et garde le même contour jusqu'à une paroi de fond qui ferme le logement 19 au niveau de la face 14.Three housing 19 (two extremes and a central) similarly shaped and arranged side by side are formed in the housing 2. The central housing is separated from the end housing by two partitions 20 extending on the one hand, the one to the other of the main faces 10 and 11, and secondly, from one to the other side faces 14 and 15. Each housing 19 is open on all of its section in the face 15 and guard the same contour to a bottom wall which closes the housing 19 at the face 14.

Chaque paroi de fond comporte à proximité de la face 10, deux trous traversants 21, se rétrécissant de l'extérieur vers l'intérieur du logement, et, à proximité de la face 11, un renfoncement 22 (figures 8 et 20), situé du coté interne de la paroi de fond, propre à accueillir l'extrémité d'une borne 3.Each bottom wall comprises, near the face 10, two through-holes 21, narrowing from the outside to the inside of the housing, and, close to the face 11, a recess 22 (FIGS. 8 and 20), located the inner side of the bottom wall, adapted to accommodate the end of a terminal 3.

Chaque paroi située entre un logement 19 et la face principale 11 comporte une rainure 23 parallèle aux petits cotés des faces principales, centrée par rapport au logement 19, dont un premier tronçon s'étend de la face 15 jusqu'à un épaulement 24, et dont un second tronçon s'étend de l'épaulement 24 jusqu'à la surface interne de la paroi de fond, le premier tronçon étant plus profond que le second tronçon. De chaque coté, la rainure 23 est bordée par une petite nervure 25.Each wall located between a housing 19 and the main face 11 has a groove 23 parallel to the small sides of the main faces, centered with respect to the housing 19, a first portion of which extends from the face 15 to a shoulder 24, and a second section extends from the shoulder 24 to the inner surface of the bottom wall, the first section being deeper than the second section. On each side, the groove 23 is bordered by a small rib 25.

Chaque paroi située entre un logement extrême et une face latérale longitudinale (respectivement 12 et 13) comporte du coté extérieur une encoche 26 d'assemblage à une enveloppe d'accueil du bornier 1 non illustrée sur les dessins, si ce n'est un muret 105 visible sur les figures 22 et 23. Les cotés intérieurs de ces mêmes parois ainsi que les deux cotés de chaque cloison 20 comportent trois nervures 27, 28 et 29 parallèles aux rainures 23.Each wall located between an extreme housing and a longitudinal lateral face (respectively 12 and 13) has on the outer side a notch 26 for assembly to a housing envelope of the terminal block 1 not shown in the drawings, other than a low wall 105 The visible sides of these walls and the two sides of each partition 20 comprise three ribs 27, 28 and 29 parallel to the grooves 23.

Chaque paroi située entre un logement 19 et la face principale 10 comporte une ouverture en T centrée (figure 7), présentant une branche longitudinale 30 parallèle aux petits cotés des faces principales 10 et 11 et une branche transversale 31 parallèle aux grands cotés des faces principales 10 et 11. La branche 30 est située par rapport à la branche 31 du coté de la face 14. De chaque coté, la branche 30 est bordée par deux portions de paroi 32 et 33 de forme rectangulaire appartenant à la paroi située entre le logement 19 et la face 10.Each wall located between a housing 19 and the main face 10 has a centered T-shaped opening (FIG. 7), having a longitudinal branch 30 parallel to the short sides of the main faces 10 and 11 and a transverse branch 31 parallel to the major sides of the main faces 10 and 11. The branch 30 is located relative to the branch 31 of the side of the face 14. On each side, the branch 30 is bordered by two wall portions 32 and 33 of rectangular shape belonging to the wall located between the housing 19 and the face 10.

Du coté externe de cette paroi, sont prévus un ensemble de nervures 36 longeant l'ouverture en T, une nervure à tranche convexe 38 au droit de chaque portion de la branche 31 située de part et d'autre de la branche 30, chaque nervure 38 étant parallèle à la branche 30, ainsi qu'une surface de butée inclinée 37 de la touche du levier rabattu, au dessus des trous 21, à l'extrémité de la branche 30 opposée à la branche 31.On the outer side of this wall, are provided a set of ribs 36 along the T-shaped opening, a convex slice rib 38 to the right of each portion of the branch 31 located on either side of the branch 30, each rib 38 being parallel to the branch 30, and an inclined abutment surface 37 of the folded lever key, above the holes 21 at the end of the leg 30 opposite the branch 31.

Du coté interne, les portions de paroi 32 et 33 présentent chacune un renfoncement 39 (figure 9) à fond plat se raccordant du coté que l'on voit à gauche sur la figure 9 à une surface inclinée 34 s'étendant jusqu'au débouché du coté externe de la branche 31, et se raccordant, du coté que l'on voit à droite, à une surface concave 35. Comme on le verra ci-après la surface 34 forme une rampe de guidage du tourillon d'articulation d'un levier 4 vers le renfoncement 39 lors de l'assemblage tandis que la surface 35 forme une butée de maintien du tourillon. On observera que le renfoncement 39 est placé juste à l'opposé de la nervure convexe 38.On the inner side, the wall portions 32 and 33 each have a recess 39 (FIG. 9) with a flat bottom connecting on the side that is seen on the left in FIG. 9 to an inclined surface 34 extending to the outlet. the outer side of the branch 31, and connecting, on the side that is seen to the right, a concave surface 35. As will be seen hereinafter the surface 34 forms a guide ramp of the hinge pin of a lever 4 to the recess 39 during assembly while the surface 35 forms a stop for holding the trunnion. It will be observed that the recess 39 is placed just opposite the convex rib 38.

On va maintenant décrire plus en détail la borne à connexion automatique 2 illustrée sur les figures 13 à 17.We will now describe in more detail the automatic connection terminal 2 illustrated in Figures 13 to 17.

La borne 3 comporte un membre flexible 40 partiellement entouré d'une cage rigide 50.Terminal 3 has a flexible member 40 partially surrounded by a rigid cage 50.

Le membre flexible 40 est formé d'une bande en métal élastique allongée repliée aux deux extrémités, formant un tronçon central plat 41 relié par deux tronçons incurvés 42 et 43 de profils respectivement en forme de U et en forme de V à deux tronçons inclinés 44 et 45. Chaque tronçon incurvé 42, 43 et chaque tronçon incliné 44, 45 comporte en son milieu une fente qui le subdivise longitudinalement en deux lamelles élastiques 44', 44" du coté qu'on voit à droite sur la figure 14 et deux lamelles 45', 45" du coté qu'on voit à gauche. Le membre flexible 40 comporte de plus dans son tronçon central plat 41 une patte 46 rabattue par découpe de façon à être saillante du coté opposé aux tronçons inclinés 44 et 45, centrée par rapport à sa largeur, approximativement au droit du tronçon incliné 45, et orientée suivant dans une direction globalement transverse à ce tronçon.The flexible member 40 is formed of an elongate elastic metal strip folded at both ends, forming a flat central section 41 connected by two curved sections 42 and 43 of respectively U-shaped and V-shaped profiles with two inclined portions 44 and 45. Each curved section 42, 43 and each inclined section 44, 45 comprises at its center a slot which divides it longitudinally into two elastic strips 44 ', 44 "on the side which is seen on the right in FIG. 14 and two lamellae 45 ', 45 "on the side you see on the left. The flexible member 40 further comprises in its central flat section 41 a flap 46 cut by cutting so as to be projecting from the opposite side to the inclined portions 44 and 45, centered relative to its width, approximately to the right of the inclined section 45, and oriented along a generally transverse direction to this section.

La cage 50 comporte une semelle 51, deux joues 52 et une coiffe 53. Cette cage 50 entoure le membre flexible 40 avec la semelle 51 en regard de la face du tronçon central opposée aux tronçons 42 et 43, avec les joues 52 en regard des tranches du tronçon incliné 45 et du tronçon central 41, et avec la coiffe 53 en regard de la face des tronçons inclinés 44 et 45 opposée au tronçon 41.The cage 50 comprises a sole 51, two cheeks 52 and a cap 53. This cage 50 surrounds the flexible member 40 with the sole 51 facing the face of the central section opposite the sections 42 and 43, with the cheeks 52 opposite the slices of the inclined section 45 and the central section 41, and with the cap 53 opposite the face of the inclined sections 44 and 45 opposite the section 41.

La semelle 51 comporte une platine 54 et des pattes de fixation 55 et 56. La platine 54 a la même largeur que le membre flexible 40 et est en contact avec celui-ci sur environ les trois quarts de sa longueur laissant dépasser le tronçon incurvé 42.The soleplate 51 comprises a plate 54 and fixing lugs 55 and 56. The plate 54 has the same width as the flexible member 40 and is in contact therewith about three quarters of its length leaving the curved section 42 .

Le membre flexible 40 est plaqué sur la platine 54 par les pattes de fixation 55 et 56 repliées vers l'intérieur de la cage et par les joues 52.The flexible member 40 is pressed on the plate 54 by the fixing lugs 55 and 56 folded towards the inside of the cage and by the cheeks 52.

Une gouttière 57 est ménagée dans la platine 54 en étant orientée dans le sens longitudinal. La face interne 58 de la gouttière 57 est prévue pour servir de siège à un conducteur reçu dans la gouttière 57 et retenu dans celle-ci par l'arête d'extrémité 49 de la patte 46.A channel 57 is formed in the plate 54 being oriented in the longitudinal direction. The internal face 58 of the channel 57 is intended to serve as a seat for a conductor received in the channel 57 and retained therein by the end edge 49 of the tab 46.

Chaque joue 52 est d'un seul bloc avec la semelle 51 et comporte une paroi de support 59 de la coiffe 53 et un nez 60 saillant dans le prolongement de la paroi 59 en direction du tronçon incliné 44.Each cheek 52 is integral with the sole 51 and has a support wall 59 of the cap 53 and a nose 60 protruding in the extension of the wall 59 towards the inclined section 44.

Les parois de support 59 sont placées de part et d'autre du tronçon incliné 45 et de la partie du tronçon central 41 située en regard du tronçon incliné 45. Chaque paroi de support 59 sur sa partie supérieure comporte une encoche de positionnement 62 et une encoche de sertissage 61 de la coiffe 53 aux joues 52. Comme on le verra ci-après, les tranches des parois 59 placées sous les nez 60 sont inclinées selon une direction transversale à la direction d'insertion d'un conducteur tel que 102 (figure 23) et comportent à mi longueur, en regard du tronçon incliné 44, une patte 63 repliée vers l'intérieur de la cage, formant une oreille de butée du conducteur rigide inséré.The support walls 59 are placed on either side of the inclined portion 45 and the portion of the central section 41 facing the inclined portion 45. Each support wall 59 on its upper part comprises a positioning notch 62 and a notch 61 of the cap 53 to the cheeks 52. As will be seen below, the slices of the walls 59 placed under the nose 60 are inclined in a direction transverse to the direction of insertion of a conductor such as 102 ( 23) and have mid-length, facing the inclined portion 44, a lug 63 folded towards the inside of the cage, forming a stop lug inserted rigid conductor.

La coiffe 53 comporte une paroi de siège 67 de forme générale rectangulaire, reliant transversalement l'une à l'autre les parois de support 59, et une paroi de siège 68 inclinée selon la direction d'introduction du conducteur et de forme générale rectangulaire, reliée à la paroi de siège 67 par une paroi transversale 69. L'inclinaison de la paroi de siège 68 fait que l'angle entre la surface externe 72 de la paroi 68 et la surface externe 73 de la paroi transversale 69 est saillant tandis que l'angle entre la surface 73 et la surface externe 65 de la paroi 67 est rentrant.The cap 53 comprises a seat wall 67 of generally rectangular shape, connecting transversely to each other the support walls 59, and a seat wall 68 inclined in the direction of insertion of the conductor and of generally rectangular shape, connected to the seat wall 67 by a transverse wall 69. The inclination of the seat wall 68 causes the angle between the outer surface 72 of the wall 68 and the outer surface 73 of the transverse wall 69 to protrude while the angle between the surface 73 and the outer surface 65 of the wall 67 is reentrant.

La paroi 67, dont la surface interne 70 forme, comme on le verra ci-après à l'appui de la figure 23, un siège pour le conducteur placé entre la paroi 67 et l'arête d'extrémité 48' (respectivement 48") de la lamelle 45' (respectivement 45"), est maintenue aux joues 52 par l'intermédiaire de deux ergots 64 engagés dans les encoches 62 et de deux tétons 80 sertis dans les encoches 61.The wall 67, whose inner surface 70 forms, as will be seen hereinafter in support of Figure 23, a seat for the driver placed between the wall 67 and the end edge 48 '(respectively 48 " ) of the lamella 45 '(respectively 45 "), is held cheeks 52 by means of two lugs 64 engaged in the notches 62 and two pins 80 crimped in the notches 61.

De la même façon, la surface interne 71 de la paroi de siège inclinée 68 forme un siège pour le conducteur placé entre la paroi 68 et l'arête d'extrémité 47' (respectivement 47") de la lamelle 44' (respectivement 44").Similarly, the inner surface 71 of the inclined seat wall 68 forms a seat for the conductor placed between the wall 68 and the end edge 47 '(respectively 47 ") of the lamella 44' (44" respectively). ).

Les tranches inférieures 66 des nez 60 coopèrent à appui avec la surface externe 72 de la paroi 68 sur la moitié de sa longueur.The lower slices 66 of the noses 60 cooperate to bear with the outer surface 72 of the wall 68 over half of its length.

La paroi 68 comporte, en son centre, une fenêtre 74 servant, comme on le verra ci-après, au passage du doigt rigide du levier 4, de forme rectangulaire occupant environ le tiers de la surface de la paroi 68 et délimitée par deux grands cotés 75 et 76, par un petit coté 77 opposé à la paroi 69 et par l'autre petit coté 78, le petit coté 77 étant globalement au même niveau et dans le prolongement de la paroi 67. Chaque portion de la paroi 68 longeant un grand coté 75, 76 de la fenêtre 74, est relié longitudinalement à une nervure 79 faisant saillie vers la semelle 51 et en butée contre les arêtes d'extrémité 47', 47" des lamelles élastiques 44', 44" de telle sorte que le conducteur introduit entre une lamelle et le siège est guidé dans son déplacement jusqu'à l'oreille de butée 63 par la nervure 79 correspondante.The wall 68 has, in its center, a window 74 serving, as will be seen below, the passage of the rigid finger of the lever 4, of rectangular shape occupying about one third of the surface of the wall 68 and delimited by two large sides 75 and 76, by a small side 77 opposite the wall 69 and the other side 78, the small side 77 being generally at the same level and in the extension of the wall 67. Each portion of the wall 68 along a large side 75, 76 of the window 74, is longitudinally connected to a rib 79 projecting towards the sole 51 and abutting against the end edges 47 ', 47 "of the elastic strips 44', 44" so that the conductor introduced between a strip and the seat is guided in its movement to the stopper ear 63 by the rib 79 corresponding.

La portion de la lamelle 44' (respectivement 44") en regard du siège 71 à coté de la nervure 79, se poursuit en une languette 81' (respectivement 81 ") dans le prolongement du reste de la lamelle 44' (respectivement 44") pour permettre à l'arête 47' (respectivement 47") de se rapprocher du siège 71 sans être gênée par la nervure 79.The portion of the strip 44 '(respectively 44 ") facing the seat 71 next to the rib 79, continues in a tongue 81' (respectively 81 ") in the extension of the remainder of the strip 44 '(respectively 44") to allow the edge 47' (respectively 47 ") to approach the seat 71 without being obstructed by the rib 79.

La largeur de la languette 81' (resp 81") est légèrement supérieure au diamètre maximum des conducteurs destinés à être reçus dans les bornes à connexion automatique.The width of the tongue 81 '(resp 81 ") is slightly greater than the maximum diameter of the conductors intended to be received in the terminals with automatic connection.

On va maintenant décrire le levier 4 à l'appui des figures 18 et 19.We will now describe the lever 4 in support of Figures 18 and 19.

Le levier 4 comporte une touche 90 reliée par un bras 91 à un doigt 92 et à un tourillon d'articulation 93.The lever 4 comprises a key 90 connected by an arm 91 to a finger 92 and to a pivot pin 93.

La touche 90 comporte une paroi d'appui 94 de forme rectangulaire dans le prolongement et en débord de chaque coté du bras 91, et reliée globalement transversalement à cette paroi, une paroi d'épaulement 95 de forme rectangulaire reliée transversalement au bras 91 du levier et en débord de chaque coté de ce bras.The key 90 comprises a support wall 94 of rectangular shape in the extension and overhang on each side of the arm 91, and connected generally transversely to this wall, a shoulder wall 95 of rectangular shape connected transversely to the arm 91 of the lever and overflowing each side of this arm.

Ces deux parois sont reliées latéralement par deux nervures de renforcement 96.These two walls are connected laterally by two reinforcing ribs 96.

La face 97 de la paroi d'épaulement 95 en regard du tourillon 93, à l'état assemblé, comme on le verra ci-après, est de forme concave dont le centre de courbure est confondu avec le centre de courbure des nervures convexes 38 du boîtier 2, lui-même confondu avec le centre de courbure du tourillon 93.The face 97 of the shoulder wall 95 facing the trunnion 93, in the assembled state, as will be seen below, is of concave shape whose center of curvature coincides with the center of curvature of the convex ribs 38 of the housing 2, itself confused with the center of curvature of the trunnion 93.

Le bras 91 relie par son extrémité opposée à la touche 90, le tourillon 93 et le doigt 92.The arm 91 connects at its opposite end to the key 90, the trunnion 93 and the finger 92.

Le doigt 92 est délimité par une surface incurvée convexe de came 98 propre à coopérer avec les lamelles élastiques, reliée d'un coté à une surface droite 99 dont la jonction avec la surface de came 98 pointe vers l'extérieur du doigt 92, cette surface droite 99 étant reliée au bras 91 par une surface convexe 100 dont la jonction avec la surface droite 99 et la jonction avec la bras 91 pointent vers l'intérieur du doigt 92, et, de l'autre coté, à une surface concave 101 reliant le doigt 92 au tourillon 93, dont la jonction avec la surface de came 98 pointe vers l'extérieur du doigt 92 et dont la jonction avec le tourillon 93 pointe vers l'intérieur.The finger 92 is delimited by a curved convex curved surface 98 adapted to cooperate with the elastic strips, connected on one side to a straight surface 99 whose junction with the cam surface 98 points outwardly of the finger 92, this right surface 99 being connected to the arm 91 by a convex surface 100 whose junction with the straight surface 99 and the junction with the arm 91 point to the inside of the finger 92, and, on the other side, to a concave surface 101 connecting the finger 92 to the trunnion 93, whose junction with the cam surface 98 points outwardly of the finger 92 and whose junction with the trunnion 93 points inwards.

Le tourillon 93 comporte de chaque coté du bras 91 un pion cylindrique et, entre les deux pions, une portion à section en arc dont la surface externe est dans le prolongement de la surface externe des deux pions.The trunnion 93 comprises on each side of the arm 91 a cylindrical pin and, between the two pins, an arcuate portion whose outer surface is in line with the outer surface of the two pins.

On va maintenant décrire comment la borne à connexion automatique 3 et le levier 4 sont assemblés au boîtier isolant 2 en particulier à l'aide des figures 2, 3, 12 et 20.We will now describe how the automatic connection terminal 3 and the lever 4 are assembled to the insulating housing 2 in particular with the help of Figures 2, 3, 12 and 20.

Lors de la phase d'assemblage, chaque borne 3 est insérée dans le sens de la flèche A dans un logement 19 du boîtier isolant 2 du coté de la face 15, le tronçon incurvé 42 du membre flexible 40 entrant en premier dans le logement 19. La gouttière 57 se loge dans le tronçon de rainure 23 situé entre la face 15 et l'épaulement 24, les languettes 27, 28 et 29 assurent de chaque coté de la borne 3 son maintien et son guidage dans le logement 19. A ce stade, la borne 3 n'est pas enfoncée dans le logement 19 jusqu'à ce que la gouttière 57 vienne contre l'épaulement 24, mais est placée dans une position intermédiaire ou la paroi transversale 69 est au droit de la branche transversale 31 de l'ouverture en T.During the assembly phase, each terminal 3 is inserted in the direction of the arrow A in a housing 19 of the insulating housing 2 on the side of the face 15, the curved section 42 of the flexible member 40 entering first into the housing 19 The groove 57 is housed in the groove portion 23 located between the face 15 and the shoulder 24, the tongues 27, 28 and 29 provide on each side of the terminal 3 its holding and its guide in the housing 19. At stage, the terminal 3 is not pressed into the housing 19 until the channel 57 comes against the shoulder 24, but is placed in an intermediate position or the transverse wall 69 is at the right of the transverse branch 31 of the opening in T.

Le levier 4 peut alors être introduit dans le sens de la flèche B dans le boîtier isolant 2, le doigt 92 et le tourillon d'articulation 93 traversent le boîtier 2 respectivement par la branche longitudinale 30 et par la branche transversale 31 de l'ouverture en T. Le doigt 92 traverse ensuite la fenêtre 74 de la borne 3 et est guidé en prenant appui par la surface de came 98 sur chacune des lamelles du tronçon incliné 44, centré par rapport à la fente les séparant, de telle sorte que la surface de came 98 passe en partie sous le petit coté 77 de la fenêtre 74, la surface droite 99 venant en butée contre la paroi bordant le petit coté 77. Le tourillon d'articulation 93 vient se loger dans la zone en regard de la surface externe 72 de la paroi 68 et en regard de la surface externe 73 de la paroi 69.The lever 4 can then be inserted in the direction of the arrow B in the insulating housing 2, the finger 92 and the hinge pin 93 pass through the housing 2 respectively by the longitudinal branch 30 and by the transverse branch 31 of the opening The finger 92 then passes through the window 74 of the terminal 3 and is guided by being supported by the cam surface 98 on each of the slats of the inclined section 44, centered with respect to the slot separating them, so that the cam surface 98 passes partly under the short side 77 of the window 74, the right surface 99 abuts against the wall bordering the short side 77. The pivot pin 93 is housed in the area facing the surface 72 of the wall 68 and facing the outer surface 73 of the wall 69.

La borne 3 est ensuite enfoncée en position finale (gouttière 57 en butée contre l'épaulement 24), le tourillon d'articulation 93 étant alors guidé par les rampes 34 vers les renfoncements 39 et dans ceux-ci, jusqu'aux surfaces de butée 35 du boîtier isolant 2, le tronçon recourbé 42 se logeant quant à lui dans le renfoncement 22.The terminal 3 is then pressed into the final position (gutter 57 abuts against the shoulder 24), the hinge pin 93 is then guided by the ramps 34 to the recesses 39 and in them, to the abutment surfaces 35 of the insulating housing 2, the curved section 42 being housed meanwhile in the recess 22.

Une fois que toutes les bornes 3 et les leviers 4 sont mis en place dans le boîtier 2, le bornier 1 obtenu est prêt à être encliqueté à une enveloppe d'accueil (elle aussi issue d'un moulage en matériau isolant) par l'intermédiaire des encoches 26. Cette enveloppe comporte un muret de blocage 105, visible sur les figures 22 et 23, disposé en regard de la glissière 57 une fois le bornier assemblé à l'enveloppe, apte à empêcher le déplacement des bornes 3 dans le sens inverse de la flèche A lors de la mise en action des leviers 4.Once all the terminals 3 and the levers 4 are put in place in the casing 2, the terminal block 1 obtained is ready to be snapped into a receiving envelope (also resulting from a molding of insulating material) by the This envelope comprises a blocking wall 105, visible in FIGS. 22 and 23, arranged facing the slideway 57 once the terminal block has been assembled to the casing, able to prevent the terminals 3 from moving in the opposite direction. inverse of the arrow A during the activation of the levers 4.

On va maintenant expliquer comment l'on met en place dans l'une des bornes à connexion automatique 3 un conducteur et plus précisément l'extrémité dénudée de celui-ci, ce conducteur étant du type rigide.We will now explain how we put in place in one of the automatic connection terminals 3 a conductor and more precisely the stripped end thereof, the conductor being rigid type.

L'extrémité dénudée 103 d'un conducteur 102, comme illustré sur la figure 23, est introduite dans l'appareil électrique par l'un des trous 21, le rétrécissement du trou 21 ayant pour effet de guider l'extrémité dénudée 103 vers la borne 3 tout en empêchant par ce rétrécissement l'insertion dans la borne de l'isolant 104 entourant l'âme conductrice du câble.The stripped end 103 of a conductor 102, as shown in FIG. 23, is introduced into the electrical apparatus through one of the holes 21, the narrowing of the hole 21 having the effect of guiding the stripped end 103 towards the terminal 3 while preventing by this narrowing the insertion into the terminal of the insulator 104 surrounding the conductive core of the cable.

L'extrémité dénudée 103 rencontre la lamelle 44' (respectivement 44") correspondante et l'entraîne à fléchir de sorte qu'elle laisse l'extrémité 103 du conducteur s'insérer, parallèlement à la nervure 79 correspondante, entre la partie de l'arête d'extrémité 47' située au bout de la languette 81' (respectivement 81 ") de la lamelle 44' (respectivement 44") et la paroi 68. Le mouvement d'enfoncement du conducteur se poursuit par exemple jusqu'à ce que le bout du conducteur vienne en butée contre la paroi de l'oreille 63 correspondante. La surface interne 71 de la paroi 68 située en regard du tronçon incliné 44 forme pour le conducteur un siège contre lequel il est maintenu par la lamelle 44' (respectivement 44") qui le plaque contre la surface 71. Si le conducteur une fois installé dans une borne à connexion automatique, tend à être retiré du boîtier, c'est-à-dire s'il est soumis à un effort dirigé dans un sens contraire au sens d'insertion, ce conducteur aura tendance à entraîner avec lui la lamelle 44' (respectivement 44") par l'intermédiaire de sa languette 81' (respectivement 81"), qui va s'arc-bouter et donc le coincer contre la surface 71, ce qui interdira le retrait du conducteur.The stripped end 103 encounters the corresponding strip 44 '(respectively 44 ") and causes it to flex so that it leaves the end 103 of the conductor to be inserted, parallel to the corresponding rib 79, between the part of the end edge 47 'located at the end of the tongue 81' (respectively 81 ") of the strip 44 '(respectively 44") and the wall 68. The driving movement of the driver continues for example until the end of the conductor comes into abutment against the wall of the corresponding lug 63. The inner surface 71 of the wall 68 facing the inclined portion 44 forms a seat for the driver against which it is held by the blade 44 '( 44 ") which plates it against the surface 71. If the conductor, when installed in a self-connecting terminal, tends to be removed from the casing, that is to say if it is subjected to a force directed into a contrary to the direction of insertion, this driver will tend to drive with it the strip 44 '(respectively 44 ") via its tongue 81' (respectively 81"), which will bend-and thus wedge against the surface 71, which will prohibit the removal of the driver.

Il en sera de même pour l'insertion de l'extrémité dénudée 106 d'un conducteur entre l'arête d'extrémité 48' (respectivement 48") de la lamelle 45' (respectivement 45") et la surface 70 de la paroi 67.It will be the same for the insertion of the stripped end 106 of a conductor between the end edge 48 '(respectively 48 ") of the strip 45' (respectively 45") and the surface 70 of the wall 67.

Il est néanmoins possible de procéder au retrait du conducteur 102 grâce au levier 4. Pour cela l'opérateur agit sur le levier de la borne concernée afin de le faire passer de sa position relevée à sa position rabattue en butée contre la surface 37 comme illustré sur la borne centrale de la figure 1 et sur la figure 21.However, it is possible to remove the conductor 102 through the lever 4. For this the operator acts on the lever of the terminal concerned to move it from its raised position to its folded position against the surface 37 as illustrated on the central terminal of Figure 1 and in Figure 21.

L'opérateur agit sur le levier 4 en exerçant une force globalement orientée transversalement à la paroi d'appui 94. Le tourillon 93 étant maintenu en position dans l'espace délimité par la borne 3 et le boîtier 2, la force exercée va entraîner le pivotement du levier 4 et donc une action d'appui du doigt 92 sur le tronçon incliné 44.The operator acts on the lever 4 by exerting a force generally oriented transversely to the bearing wall 94. The pin 93 being held in position in the space defined by the terminal 3 and the housing 2, the force exerted will cause the pivoting of the lever 4 and thus a bearing action of the finger 92 on the inclined section 44.

Le pivotement est rendu possible par la forme du doigt 92, la surface concave 101 permettant l'action en pivotement sans rentrer en butée avec le petit coté 78 de la fenêtre 74, la surface convexe arrondie 100 permettant l'action en pivotement sans rentrer en butée avec le petit coté 77 de la fenêtre 74.The pivoting is made possible by the shape of the finger 92, the concave surface 101 allowing the action of pivoting without coming into abutment with the small side 78 of the window 74, the rounded convex surface 100 allowing the pivoting action without coming back into place. stop with the small side 77 of the window 74.

La surface de came 98 va alors contraindre les lamelles 44' et 44" de façon à les écarter du siège 71 jusqu'à ce que l'arête d'extrémité 47' (respectivement 47") de la lamelle 44' (respectivement 44") ne soit plus en contact avec le conducteur, grâce à quoi le conducteur peut être retiré de la borne à connexion automatique dans laquelle il était engagé.The cam surface 98 will then force the slats 44 'and 44 "so as to move them away from the seat 71 until the end edge 47' (respectively 47") of the slat 44 '(44 "respectively) ) is no longer in contact with the driver, whereby the driver can be removed from the automatic connection terminal in which he was engaged.

On notera qu'il est également possible, au cas où l'on souhaite raccorder à la borne de connexion 3 un conducteur souple, d'engager l'extrémité dénudée de celui-ci dans une borne à connexion automatique 3 en même temps qu'on agit sur le levier 4 afin d'écarter l'arête d'extrémité 47' (respectivement 47") de la lamelle 44' (respectivement 44") du siège 71 pour permettre à l'extrémité dénudée de se placer entre eux.It will be noted that it is also possible, in the case where it is desired to connect to the connection terminal 3 a flexible conductor, to engage the stripped end thereof in an automatic connection terminal 3 at the same time as acting on the lever 4 to move the end edge 47 '(respectively 47 ") of the strip 44' (respectively 44") of the seat 71 to allow the stripped end to be placed between them.

Dans le bornier illustré, la disposition du doigt 92 par rapport à la borne à connexion automatique est telle que le levier par son doigt a une action conjointe sur les lamelles 44' et 44" et entraîne donc simultanément l'écartement des arêtes d'extrémités 47' et 47" des lamelles 44' et 44" du siège 71.In the illustrated terminal block, the arrangement of the finger 92 with respect to the automatically-connected terminal is such that the lever by its finger has a joint action on the lamellae 44 'and 44 "and thus causes simultaneously the spacing of the end edges 47 'and 47 "of the lamellae 44' and 44" of the seat 71.

On va maintenant décrire les efforts à fournir par l'opérateur pour actionner le levier 4 en s'appuyant sur les figures 20 et 21.We will now describe the efforts to be provided by the operator to operate the lever 4 based on Figures 20 and 21.

L'action de l'opérateur sur le levier entraîne une action en pivotement du doigt qui tend à éloigner la surface droite 99 du doigt du petit coté 77 et qui tend à rapprocher la surface concave 101 du doigt du petit coté 78 pour amener le tronçon incliné 44 d'une première position de fléchissement (figure 20) à une deuxième position de fléchissement (figure 21). Au cours de ce déplacement, la surface de came 98 reste en contact permanent avec le tronçon incliné 44 et exerce sur lui une force d'actionnement globalement normale au tronçon incliné 44 quelque soit sa position de fléchissement.The action of the operator on the lever causes a pivoting action of the finger which tends to move the straight surface 99 of the finger of the small side 77 and which tends to bring the concave surface 101 of the finger of the small side 78 to bring the stretch inclined 44 from a first deflection position (Fig. 20) to a second deflection position (Fig. 21). During this movement, the cam surface 98 remains in constant contact with the inclined section 44 and exerts on it an actuating force generally normal to the inclined section 44 whatever its position of deflection.

En position relevée du levier 4, figure 20, la ligne d'action de la force de réaction du tronçon incliné 44 à la force exercée par la surface de came 98 du doigt 92 est donc quasiment perpendiculaire à la ligne joignant le centre du tourillon 93 (centre de pivotement) au point de contact entre la surface de came 98 et le tronçon incliné 44 (point où s'applique la force de réaction).In the raised position of the lever 4, FIG. 20, the line of action of the reaction force of the inclined section 44 to the force exerted by the cam surface 98 of the finger 92 is thus almost perpendicular to the line joining the center of the trunnion. (center of pivoting) at the point of contact between the cam surface 98 and the inclined section 44 (point where the reaction force applies).

En position rabattue du levier 4, figure 21, la distance entre le centre du tourillon 93 et le point de contact susmentionné est plus grande qu'en position relevée, l'effet de levier est donc plus faible. Toujours dans la position rabattue du levier 4, la ligne d'action de la force de réaction du tronçon incliné 44 à la force exercée par la surface de came 98 du doigt 92 s'est rapprochée de la ligne joignant le centre du tourillon 93 au point de contact entre la surface de came 98 et le tronçon incliné 44.In the folded position of the lever 4, Figure 21, the distance between the center of the trunnion 93 and the above-mentioned contact point is greater than in the raised position, the leverage is therefore lower. Still in the folded position of the lever 4, the line of action of the reaction force of the inclined section 44 to the force exerted by the cam surface 98 of the finger 92 has moved closer to the line joining the center of the trunnion 93 to point of contact between the cam surface 98 and the inclined section 44.

Ainsi, au cours de la course du levier 4, le tronçon incliné 44 fléchit progressivement de telle sorte que l'angle formé entre la ligne d'action de la force de réaction du tronçon incliné 44 à la force exercée par la surface de came 98 du doigt 92 (maintenue normale au tronçon 44 grâce à la surface de came 98) et la ligne joignant le centre du tourillon 93 au point de contact entre la surface de came 98 et le tronçon incliné 44, décroît progressivement.Thus, during the stroke of the lever 4, the inclined portion 44 flexes progressively so that the angle formed between the line of action of the reaction force of the inclined section 44 to the force exerted by the cam surface 98 the finger 92 (maintained normal to the section 44 through the cam surface 98) and the line joining the center of the trunnion 93 at the point of contact between the cam surface 98 and the inclined section 44, decreases gradually.

Par conséquent la composante de la force exercée sur le tronçon 44 provenant de la réaction du boîtier isolant 2 sur le tourillon 93 du levier 4 en appui contre les surfaces de butée 35 augmente au fil de la course ce qui entraîne une diminution de l'intensité de l'effort à fournir par l'opérateur au cours de la course du levier jusqu'à une valeur minimale obtenue en fin de course, en position de butée de la touche du levier 4 contre la surface de butée 37 (réduction de l'effort en fin de course), malgré la diminution de l'effet de levier.Therefore the component of the force exerted on the section 44 from the reaction of the insulating housing 2 on the trunnion 93 of the lever 4 support against the abutment surfaces 35 increases with the course of the race which causes a decrease in the intensity of the effort to be provided by the operator during the lever stroke to a minimum value obtained at the end of the race , in the stop position of the button of the lever 4 against the abutment surface 37 (reduction of the end-of-stroke force), despite the decrease in the leverage effect.

L'alignement exact n'étant pas atteint, il existe toujours une force de rappel qui permet de ne pas avoir de position stable à l'ouverture : la position d'alignement n'étant pas accessible dans le zone de course du levier 4, lorsque l'opérateur relâche le levier 4, la force élastique du tronçon incliné 44 rappelle le levier 4 dans sa position relevée.The exact alignment is not reached, there is always a restoring force which makes it possible not to have a stable position at the opening: the alignment position not being accessible in the travel zone of the lever 4, when the operator releases the lever 4, the elastic force of the inclined portion 44 recalls the lever 4 in its raised position.

L'importante diminution de l'effort en fin de course ainsi que l'arrivée en position de butée rassure l'opérateur quant à la réelle ouverture de la borne. Cela lui permet de fournir moins d'efforts pour maintenir le levier rabattu pendant la connexion ou la déconnexion d'un conducteur. Il ne lui reste ensuite plus qu'à relâcher le levier pour que celui retrouve sa position relevée automatiquement.The significant reduction in end-of-stroke effort and the arrival in the stop position reassures the operator of the actual opening of the bollard. This allows it to provide less effort to keep the lever down while a driver is connected or disconnected. It then remains for him to release the lever so that it returns to its automatically raised position.

Dans la variante illustrée sur la figure 24, le tronçon incurvé 43 et le tronçon incliné 45 du membre flexible 40 sont remplacés par un tronçon transversal 107 muni d'une patte élastique 108 en regard du tronçon central 41, une ouverture 110 de passage d'un conducteur 106 à connecter étant ménagée entre le tronçon central 41 et le tronçon transversal 107.In the variant illustrated in FIG. 24, the curved section 43 and the inclined section 45 of the flexible member 40 are replaced by a transverse section 107 provided with an elastic tab 108 facing the central section 41, an opening 110 for passing through. a conductor 106 to be connected being formed between the central section 41 and the transverse section 107.

Lors de l'introduction d'un conducteur 106, la patte 108 fléchit pour permettre la pénétration du conducteur 106 tandis que si ce conducteur est sollicité à être retiré hors du boîtier 2, la patte 108, par son extrémité 109, coince le conducteur 106 contre le tronçon central 41 portant lui-même sur la semelle 51.When introducing a conductor 106, the tab 108 flexes to allow the penetration of the conductor 106 while if the conductor is urged to be removed from the housing 2, the tab 108, at its end 109, wedges the conductor 106 against the central section 41 bearing itself on the sole 51.

Le conducteur 106 peut être ainsi mis en place sur le dispositif sans avoir à être courbé deux fois comme dans le mode de réalisation illustré sur les figures précédentes (voir plus particulièrement les figures 22 et 23).The conductor 106 can thus be placed on the device without having to be bent twice as in the embodiment illustrated in the preceding figures (see more particularly Figures 22 and 23).

La présente invention n'est pas limitée aux modes de réalisation décrits et représentés mais englobe toute variante d'exécution.The present invention is not limited to the embodiments described and shown but encompasses any variant embodiment.

Claims (30)

Appareil électrique comportant un boîtier isolant (2) et une borne à connexion automatique (3) disposée dans ledit boîtier (2), lequel présente une ouverture (21) d'insertion d'un conducteur électrique (102) suivant une direction prédéterminée, ladite borne (3) étant formée par une cage rigide (50) et par un membre flexible (40), la cage rigide présentant un siège (71) au niveau de la dite ouverture d'insertion (21), le membre flexible (40) comportant une lamelle élastique (44', 44") ayant une arête d'extrémité (47', 47") en regard dudit siège (71), ladite lamelle élastique (44, 44') étant adaptée à se déformer pour laisser ledit conducteur (102), lorsqu'il est engagé dans ledit boîtier (2) par ladite ouverture d'insertion (21), s'insérer entre ledit siège (71) et ladite arête d'extrémité (47', 47") de la lamelle (44, 44') et, si ledit conducteur (102) est ensuite sollicité à être retiré dudit boîtier (2), pour coincer le conducteur (102) entre ledit siège (71) et ladite arête d'extrémité de la lamelle, ladite cage rigide (50) comportant une fenêtre (74) de passage pour un doigt (92) faisant partie d'un levier de manoeuvre (4) de ladite lamelle élastique (44', 44"), prévu pour écarter cette dernière dudit siège (71), ladite cage (50) présentant une paroi (68), dite paroi de siège, dans laquelle est ménagée ladite fenêtre (74) tandis qu'une surface interne (71) de cette paroi forme ledit siège, la surface externe de ladite paroi de siège (72) se raccordant, à une extrémité opposée à ladite ouverture d'insertion (21), à une surface (73) orientée tranversalement par rapport à ladite surface externe (72) de sorte que l'angle entre la surface externe (72) de la paroi de siège et ladite surface transversale (73) soit saillant ;
caractérisé en ce que : - ledit boîtier (2) comporte une surface de butée (35) disposée en regard de la surface externe (72) de la paroi de siège (68) et de ladite surface transversale (73) ; et - ledit levier (4) est une pièce distincte dudit boîtier (2) et comporte un tourillon d'articulation (93) autour duquel il est adapté à pivoter, ledit tourillon étant maintenu en position autour de son axe par ladite surface externe (72) de ladite paroi de siège (68), par ladite surface transversale (73) et par ladite surface de butée (35). An electrical apparatus comprising an insulative housing (2) and an automatically connected terminal (3) disposed in said housing (2), which has an opening (21) for insertion of an electrical conductor (102) in a predetermined direction, said terminal (3) being formed by a rigid cage (50) and a flexible member (40), the rigid cage having a seat (71) at said insertion opening (21), the flexible member (40) having an elastic blade (44 ', 44 ") having an end edge (47', 47") facing said seat (71), said elastic blade (44, 44 ') being adapted to deform to leave said driver (102), when engaged in said housing (2) by said insertion opening (21), inserting between said seat (71) and said end edge (47 ', 47 ") of the lamella (44, 44 ') and, if said conductor (102) is then urged to be removed from said housing (2), to wedge the conductor (102) between said seat (71) and said end edge of the lamella, said rigid cage (50) having a passage window (74) for a finger (92) forming part of an operating lever (4) of said elastic lamella ( 44 ', 44 "), designed to separate the latter seat (71), said cage (50) having a wall (68), said seat wall, in which is formed said window (74) while an inner surface (71) of said wall forms said seat, the outer surface of said seat wall (72) connecting, at an end opposite said insertion opening (21), to a surface (73) oriented transversely to said an outer surface (72) such that the angle between the outer surface (72) of the seat wall and said transverse surface (73) is salient;
characterized in that - said housing (2) has an abutment surface (35) disposed facing the outer surface (72) of the seat wall (68) and said transverse surface (73); and said lever (4) is a part distinct from said housing (2) and comprises a pivot pin (93) around which it is adapted to pivot, said pin being held in position about its axis by said external surface (72) of said seat wall (68), said transverse surface (73) and said abutment surface (35). Appareil selon la revendication 1, caractérisé en ce que ledit boîtier isolant présente un logement (19) pour ladite borne (3), muni d'une ouverture (30, 31), pour le passage dudit levier de manoeuvre (4), ayant une forme en T.Apparatus according to claim 1, characterized in that said insulating housing has a housing (19) for said terminal (3), provided with an opening (30, 31), for the passage of said operating lever (4), having a T-shape Appareil selon la revendication 2, caractérisé en ce que la branche transversale (31) de ladite ouverture en forme de T est adaptée à permettre le passage dudit tourillon (93) dudit levier (4).Apparatus according to claim 2, characterized in that the transverse branch (31) of said T-shaped opening is adapted to allow passage of said trunnion (93) of said lever (4). Appareil selon l'une quelconque des revendications 2 ou 3, caractérisé en ce que la branche longitudinale (30) de ladite ouverture en T est bordée de chaque côté par une paroi (32, 33) présentant du côté interne un renfoncement (39) auquel appartient ladite surface de butée (35), laquelle est disposée à une extrémité opposée à la branche transversale (31) de ladite ouverture en T.Apparatus according to any one of claims 2 or 3, characterized in that the longitudinal leg (30) of said T-shaped opening is bordered on each side by a wall (32, 33) having on the inner side a recess (39) to which belongs to said abutment surface (35), which is disposed at an end opposite to the transverse branch (31) of said T-shaped opening. Appareil selon la revendication 4, caractérisé en ce qu'une surface inclinée (34) est prévue entre ledit renfoncement (39) et ladite branche transversale (31).Apparatus according to claim 4, characterized in that an inclined surface (34) is provided between said recess (39) and said transverse branch (31). Appareil selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que ladite surface de butée (35) présente une forme concave.Apparatus according to any one of claims 4 or 5, characterized in that said abutment surface (35) has a concave shape. Appareil selon l'une quelconque des revendications 1 à 6, caractérisé en ce que ledit levier (4) comporte une touche (90), disposée à l'extérieur dudit boîtier, reliée audit doigt (92) par un bras (91) plus étroit que ladite touche, laquelle comporte une paroi d'épaulement (95) en débord de chaque côté dudit bras (91), ledit boîtier isolant (2) présentant un logement (19) pour ladite borne (3) muni d'une ouverture (30, 31) de passage dans laquelle est logé ledit bras (91).Apparatus according to any one of claims 1 to 6, characterized in that said lever (4) has a key (90), disposed outside said housing, connected to said finger (92) by a narrower arm (91) said key, which has a shoulder wall (95) protruding from each side of said arm (91), said insulating housing (2) having a housing (19) for said terminal (3) provided with an opening (30); , 31) of passage in which is housed said arm (91). Appareil selon la revendication 7, caractérisé en ce que chaque dite surface d'épaulement (95) du levier (4) est incurvée tandis que ladite ouverture (30, 31) est bordée de chaque côté par une nervure (38) présentant une tranche convexe de même courbure que celle de la surface d'épaulement correspondante de la touche (90) du levier (4), afin de guider le levier (4) par rapport au boîtier lors d'un mouvement de pivotement du levier (4).Apparatus according to claim 7, characterized in that each said shoulder surface (95) of the lever (4) is curved while said opening (30, 31) is bordered on each side by a rib (38) having a convex slice the same curvature as that of the shoulder surface corresponding key (90) of the lever (4), to guide the lever (4) relative to the housing during a pivoting movement of the lever (4). Appareil selon l'une quelconque des revendications 1 à 8, caractérisé en ce que ledit doigt (92) présente une surface de came convexe (98) par laquelle il est en appui contre ladite lamelle (44', 44").Apparatus according to any one of claims 1 to 8, characterized in that said finger (92) has a convex cam surface (98) by which it bears against said leaf (44 ', 44 "). Appareil selon la revendication 9, caractérisé en ce que ledit doigt (92) présente une surface droite (99) se raccordant par une extrémité à une extrémité de ladite surface de came (98) avec leur jonction qui pointe vers l'extérieur.An apparatus according to claim 9, characterized in that said finger (92) has a straight surface (99) connected at one end to one end of said cam surface (98) with their junction pointing outwardly. Appareil selon l'une quelconque des revendications 9 ou 10, caractérisé en ce que ledit doigt (92) présente une surface concave (101) dont une extrémité se raccorde à une extrémité de ladite surface de came (98) avec leur jonction qui pointe vers l'extérieur.Apparatus according to any one of claims 9 or 10, characterized in that said finger (92) has a concave surface (101), one end of which connects to one end of said cam surface (98) with their junction pointing towards outside. Appareil selon l'une quelconque des revendications 1 à 11, caractérisé en ce que ledit levier (4) comporte une touche (90) reliée audit doigt (92) par un bras (91) plus étroit que ladite touche, ledit tourillon (93) comportant de chaque côté dudit bras (91) un pion cylindrique et, entre les deux pions, une portion à section en arc dont la surface externe est dans le prolongement de la surface externe de chacun des deux pions.Apparatus according to any one of claims 1 to 11, characterized in that said lever (4) has a key (90) connected to said finger (92) by an arm (91) narrower than said key, said pin (93) comprising on each side of said arm (91) a cylindrical pin and, between the two pins, a portion of arcuate section whose outer surface is in the extension of the outer surface of each of the two pins. Appareil selon l'une quelconque des revendications 1 à 12, caractérisé en ce que ledit levier comporte une touche (90) disposée à l'extérieur dudit boîtier (2), lequel présente une surface de butée de fin de course (37) pour ladite touche (90).Apparatus according to any one of claims 1 to 12, characterized in that said lever comprises a key (90) disposed outside said housing (2), which has an end stop surface (37) for said key (90). Appareil selon la revendication 13, caractérisé en ce que, dans une position de fin de course dudit levier (4) où ladite touche (90) est en appui contre ladite surface de butée (37), il existe une force de rappel dudit levier (4).Apparatus according to claim 13, characterized in that , in an end position of said lever (4) where said key (90) bears against said abutment surface (37), there is a restoring force of said lever ( 4). Appareil selon la revendication 14, caractérisé en ce que ladite force de rappel est plus petite que la force à exercer pour déplacer ledit levier (4) à partir d'une position de repos que prend ledit levier (4) en l'absence de sollicitation.Apparatus according to claim 14, characterized in that said restoring force is smaller than the force to be exerted to move said lever (4) from a rest position that said lever (4) takes in the absence of stress . Appareil selon la revendication 15, caractérisé en ce que la force à exercer sur ledit levier pour passer de ladite position de repos à ladite position de fin de course décroît progressivement.Apparatus according to claim 15, characterized in that the force to be exerted on said lever to move from said rest position to said end position decreases progressively. Appareil selon l'une quelconque des revendications 1 à 16, caractérisé en ce que ladite cage rigide (50) de ladite borne (3) comporte une semelle (51), deux joues (52) et une coiffe (53), avec lesdites joues qui sont disposées latéralement et qui s'étendent chacune de ladite semelle (51) à ladite coiffe (53), ladite paroi de siège (68) appartenant à ladite coiffe (53).Apparatus according to any one of claims 1 to 16, characterized in that said rigid cage (50) of said terminal (3) comprises a sole (51), two cheeks (52) and a cap (53), with said cheeks which are arranged laterally and which each extend from said sole (51) to said cap (53), said seat wall (68) belonging to said cap (53). Appareil selon la revendication 17, caractérisé en ce que ladite coiffe (53) comporte une paroi transversale (69) à laquelle appartient ladite surface transversale et une autre paroi de siège (67), à laquelle se raccorde ladite paroi transversale (69).An apparatus according to claim 17, characterized in that said cap (53) has a transverse wall (69) to which said transverse surface belongs and another seat wall (67) to which said transverse wall (69) is connected. Appareil selon l'une quelconque des revendications 17 ou 18, caractérisé en ce que chaque dite joue (52) comporte un nez saillant (60) au droit de ladite paroi de siège (68).Apparatus according to any one of claims 17 or 18, characterized in that each said cheek (52) has a protruding nose (60) in line with said seat wall (68). Appareil selon l'une quelconque des revendications 17 à 19, caractérisé en ce que ladite semelle (51) de la cage rigide (50) présente une gouttière (57) tandis que ledit boîtier (2) comporte pour ladite borne (3) un logement (19) présentant une paroi munie d'une rainure (23) de réception de ladite gouttière (57).Apparatus according to any one of claims 17 to 19, characterized in that said sole (51) of the rigid cage (50) has a gutter (57) while said housing (2) comprises for said terminal (3) a housing (19) having a wall provided with a groove (23) for receiving said gutter (57). Appareil selon la revendication 20, caractérisé en ce que ladite rainure (23) présente un épaulement (24) contre lequel vient buter une tranche de ladite gouttière (57).Apparatus according to claim 20, characterized in that said groove (23) has a shoulder (24) against which abuts a slice of said channel (57). Appareil selon l'une quelconque des revendications 1 à 21, caractérisé en ce que ladite borne (3) comporte un membre flexible présentant un tronçon central (41) se raccordant à une extrémité à un tronçon incurvé (42), lequel se raccorde, à l'opposé dudit tronçon central (41), à un tronçon incliné (44) disposé en regard dudit siège (71).Apparatus according to any one of claims 1 to 21, characterized in that said terminal (3) comprises a flexible member having a central section (41) connected at one end to a curved section (42), which connects to the opposite of said central section (41), an inclined section (44) disposed opposite said seat (71). Appareil selon la revendication 22, caractérisé en ce que ledit tronçon central (41) se raccorde à chaque extrémité à un tronçon incurvé (42, 43) se raccordant, à l'opposé dudit tronçon central (41), à un tronçon incliné (44,45) dont l'un est disposé en regard dudit siège (71) et l'autre en regard d'un autre siège (70) que comporte ladite cage (50).Apparatus according to claim 22, characterized in that said central section (41) is connected at each end to a curved section (42, 43) connecting, opposite said central section (41), to an inclined section (44,45) one of which is disposed opposite said seat (71) and the other facing another seat (70) that comprises said cage (50). Appareil selon la revendication 22, caractérisé en ce que ledit tronçon central (41) se raccorde, à son extrémité opposée audit tronçon incurvé (42), à un tronçon transversal (107) muni d'une patte élastique (108) en regard du tronçon central (41), une ouverture (110) de passage d'un câble (106) à connecter étant ménagée à la jonction entre le tronçon central (41) et le tronçon transversal (107).Apparatus according to claim 22, characterized in that said central section (41) is connected, at its end opposite to said curved section (42), to a transverse section (107) provided with an elastic tab (108) opposite the section central (41), an opening (110) for passage of a cable (106) to be connected being provided at the junction between the central section (41) and the transverse section (107). Appareil selon l'une quelconque des revendications 1 à 24, caractérisé en ce que ledit boîtier (2) comporte trois dites bornes (3), chacune disposée dans un logement respectif (19), un dit levier (4) étant prévu pour chaque dite borne (3).Apparatus according to any one of claims 1 to 24, characterized in that said housing (2) comprises three said terminals (3), each disposed in a respective housing (19), a said lever (4) being provided for each said terminal (3). Appareil selon l'une quelconque des revendications 1 à 25, caractérisé en ce que ledit boîtier présente une forme générale parallélépipédique avec un muret saillant (16) disposé dans le prolongement de l'une de ses faces (15).Apparatus according to any one of claims 1 to 25, characterized in that said housing has a generally parallelepipedal shape with a projecting wall (16) disposed in the extension of one of its faces (15). Appareil selon la revendication 26, caractérisé en ce qu'une gouttière (17) se raccorde audit muret (16).Apparatus according to claim 26, characterized in that a gutter (17) is connected to said wall (16). Appareil selon l'une quelconque des revendications 26 ou 27, caractérisé en ce que ledit boîtier comporte, dans le prolongement dudit muret parallèlement à ladite face (15) dans le prolongement de laquelle est situé ledit muret, de chaque côté, une patte de guidage (18) saillant par rapport à une respective autre face (12, 13) dudit boîtier (2).Apparatus according to any one of claims 26 or 27, characterized in that said housing comprises, in the extension of said wall parallel to said face (15) in the extension of which said wall is located, on each side, a guide tab (18) protruding from a respective other face (12, 13) of said housing (2). Appareil selon l'une quelconque des revendications 1 à 28, caractérisé en ce que ledit boîtier présente au moins une encoche (26) d'assemblage à une enveloppe d'accueil.Apparatus according to any one of claims 1 to 28, characterized in that said housing has at least one notch (26) for assembly to a receiving envelope. Appareil selon l'une quelconque des revendications 1 à 29, caractérisé en ce qu'il comporte en outre une enveloppe d'accueil présentant un muret de butée (105) en regard de ladite borne (3).Apparatus according to any one of claims 1 to 29, characterized in that it further comprises a home envelope having a stop wall (105) facing said terminal (3).
EP05291591A 2004-07-30 2005-07-26 Electrical apparatus with automatic connection terminal Not-in-force EP1622224B1 (en)

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FR0408465A FR2873859B1 (en) 2004-07-30 2004-07-30 ELECTRICAL APPARATUS COMPRISING AN AUTOMATIC CONNECTION TERMINAL

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Also Published As

Publication number Publication date
FR2873859B1 (en) 2006-12-08
DE602005014831D1 (en) 2009-07-23
FR2873859A1 (en) 2006-02-03
EP1622224B1 (en) 2009-06-10
ES2327427T3 (en) 2009-10-29
ATE433608T1 (en) 2009-06-15

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