EP4378038A1 - Bypass device for an aircraft cable raceway - Google Patents

Bypass device for an aircraft cable raceway

Info

Publication number
EP4378038A1
EP4378038A1 EP22754816.1A EP22754816A EP4378038A1 EP 4378038 A1 EP4378038 A1 EP 4378038A1 EP 22754816 A EP22754816 A EP 22754816A EP 4378038 A1 EP4378038 A1 EP 4378038A1
Authority
EP
European Patent Office
Prior art keywords
cable tray
side wall
central body
jaw
guide channel
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.)
Pending
Application number
EP22754816.1A
Other languages
German (de)
French (fr)
Inventor
Olivier RIDOUT
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.)
Latelec
Original Assignee
Latelec
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 Latelec filed Critical Latelec
Publication of EP4378038A1 publication Critical patent/EP4378038A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings
    • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/40—Sound or heat insulation, e.g. using insulation blankets
    • B64C1/403—Arrangement of fasteners specially adapted therefor, e.g. of clips
    • B64C1/406—Arrangement of fasteners specially adapted therefor, e.g. of clips in combination with supports for lines, e.g. for pipes or cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0437—Channels

Definitions

  • the invention relates to the field of aeronautics and is aimed at the arrangement of cable trays within the electrical architectures of aircraft.
  • Aircraft wireways define the paths of electrical wiring harnesses relative to the structure of an aircraft, holding them in position and protecting them. Electrical wiring harnesses are made up of bundles of cables running between various aircraft electrical installations.
  • Aircraft cable trays are generally made up of sections extending in the extension of each other. Between some profiles, a predetermined gap is provided to allow relative movement of the profiles without damage. Aircraft cable trays can indeed be fixed on structural parts of the aircraft which can be flexible. For example, the cable trays extending along the wings of an aircraft are subjected to a bending movement of relatively large amplitude during the flight of the aircraft.
  • the known cable trays comprise means for holding in place the electrical harnesses running in the cable tray.
  • the known cable trays also include branching devices making it possible to divert a harness and to take it out of the cable tray, in order for example to connect it to nearby equipment.
  • Known branching devices are generally bulky and heavy means attached to the entire structure of the sections constituting the cable tray.
  • Utility model DE 20 2017 107545U1 and patent JP 2002 218623 describe electrical harness derivation devices for aircraft cable trays adapted to deviate the trajectory of said harness projecting from a cable guide channel of a cable tray.
  • This channel is delimited by a first side wall and a second side wall provided with a projecting side rim in which is provided a through hole in which is clipped a support base provided with a fixing foot allowing its attachment to the path cables by means of two elastic lugs each provided with a tooth
  • This branching device further comprises,
  • this central body being adapted to be positioned opposite a cable guide channel when the branching device is fixed on an aircraft cable tray, this central body comprising a deflection jaw gripping said electrical harness; the support base and the pad being adapted to be fixed on two adjacent side walls of a guide channel of a cable tray,
  • Patent CN 107 208 826 describes an articulated jaw but which also does not include a flexible and/or elastically deformable element.
  • the object of the invention is to improve electrical harness branching devices for aircraft cable trays of the prior art, with a view to meeting the production rationalization objectives specific to the latest generation wing programs.
  • the invention relates to an electrical harness derivation device for an aircraft cable tray, this device being suitable for deflecting the trajectory of an electrical harness from a cable guide channel of a cable tray of aircraft, to the outside of the cable tray.
  • This bypass device comprises:
  • this runner comprising a support groove
  • this central body attached on one side to the support base and on the other side to the pad, this central body being adapted to be positioned opposite a cable guide channel when the branching device is fixed on an aircraft cable tray, this central body comprising a deflection jaw for an electrical harness; the support base and the pad being adapted to be fixed on two adjacent side walls of a guide channel of a cable tray.
  • the invention relates to an aircraft cable tray comprising at least two guide channels each bordered by a first side wall and a second side wall, and which comprises:
  • a lateral flange projecting from an outer face of the first side wall of a first guide channel, this lateral flange comprising a through fixing orifice;
  • bypass device as described above, whose support base is clipped into the fixing hole of the side flange and whose shoe is mounted on the second side wall of the first guide channel, so that the groove bearing rests on the edge of this second side wall, the central body of the bypass device being arranged opposite the first guide channel, an electrical harness projecting from the first guide channel being clamped in the jaw of deviation.
  • the electrical harness branching devices for aircraft cable tray according to the invention provide a significant saving in material, and therefore weight, as well as cost, compared to the devices of the prior art.
  • the cable guide channels are individualized and an electrical harness branching device can be installed or removed in each cable guide channel, without impacting the other cable guide channels.
  • the design of the device according to the invention is considerably simplified compared to the prior art in which these same devices generally comprise folded and shaped aluminum sheets on which adapters are fixed, expensive and heavy, and requiring time important assembly steps with suitable tools.
  • the bypass device according to the invention can be removed without disconnecting the electrical harness that it diverts. All you have to do is open the deflection jaw of the central body and unclip the bypass device from the aircraft cable tray to remove it and thus release the electrical harness that was deflected.
  • the laying (or refitting) of the bypass device can also be done by keeping the electrical harness to be diverted in place, without the need to disconnect the latter.
  • the bypass device can therefore be installed after the wiring has been completed and in particular after the electrical harness to be diverted has been mounted and connected to the electrical equipment. Compared to the prior art, this possibility removes a strong constraint that weighed on the assembly process of an aircraft.
  • the branching device is put in place by clipping onto the cable tray, then the electrical harness, which is already connected, is then inserted into the branching jaw, and the latter is closed.
  • these operations are carried out without tools, quickly, and with a low degree of complexity.
  • the bypass device according to the invention may comprise the following additional characteristics, alone or in combination:
  • the support base comprises a fixing foot which comprises elastic clipping elements
  • the fixing foot comprises at least two elastic lugs each comprising a tooth
  • the fixing foot comprises positioning pins framing the elastic tabs
  • the fixing foot has stop surfaces opposite the teeth of the elastic tabs;
  • the deflection jaw comprises a lower jaw hinged to an upper jaw, one of which is provided with a flexible coating and the other is provided with an elastically deformable element;
  • - Said elastically deformable element is a flexible concave blade; - Said elastically deformable element is a set of elastically deformable ribs extending coaxially;
  • the pad is attached to the central body by an insulating protective wall;
  • the aircraft cable tray according to the invention may include the following additional feature:
  • the support groove has a width corresponding to the thickness of the second side wall.
  • FIG. 1 shows in perspective an aircraft cable tray provided with branching devices according to the invention
  • FIG. 2 shows a bypass device according to the invention
  • FIG. 3 shows the bypass device of Figure 2 with its deflection jaw open
  • FIG. 4 shows the bypass device of Figure 2 seen in section
  • FIG. 5 shows the bypass device seen in section with its deflection jaw open
  • - Figure 6 shows a bypass device according to a second embodiment of the invention
  • FIG. 7 shows the bypass device of Figure 6, seen in section;
  • FIG. 8 shows a bypass device according to a third embodiment of the invention.
  • FIG 1 illustrates an aircraft cable tray provided with electrical harness branching devices, according to the invention.
  • the aircraft cable tray is a conventional cable tray made for example by a metal profile, defining several cable guide channels as so many paths in which electrical harnesses to be guided and protected can be placed.
  • the cable tray shown thus comprises a first side wall 1 (which forms the outer side wall of the cable tray) and a second side wall 2 These two walls 1, 2 define a first guide channel.
  • the cable tray also includes a second guide channel, adjacent to the first (the second side wall 2 separates the two guide channels).
  • a bypass device 3 is mounted on each of the guide channels, so as to deviate the trajectory of an electrical harness from each guide channel, towards the outside of the cable tray.
  • Each derivation device 3 keeps the electrical harness 4 deviated by positioning it so that it forms a projecting curvature with respect to the guide channel from which it comes.
  • the electrical harnesses 4 can thus be extracted from the cable tray by the branching device 3, to be connected for example to equipment or to join another cable tray.
  • the electrical harnesses 4 deflected are bundles of cables illustrated in FIG. 1 by an electrical conductor and its sheath.
  • the bypass device 3 can divert any other kind of electrical harness from the cable tray.
  • FIG. 2 illustrates in perspective one of the branching devices 3 of FIG.
  • This branching device 3 comprises a support base 5 which is fitted with a fixing foot 6 allowing it to be attached to the cable tray.
  • the fixing foot 6 comprises two elastic lugs 7 each provided with a tooth 8.
  • the elastic lugs 7 are framed by two positioning pins 9.
  • the fixing foot 6 further comprises two stop surfaces 10 opposite the teeth 8.
  • the fixing foot 6 allows the support base 5 to be clipped onto the cable tray.
  • the cable tray comprises on each of its outer walls (with reference to FIG. 1, the first side wall 1 is one of these outer walls), a side flange 11 projecting from the outer face of this outer wall.
  • the first side wall 1 thus comprises a side rim 11 projecting from the outer face of this side wall 1.
  • This side rim 11 comprises a through fixing hole 12 which is, in the present example, of rectangular section.
  • the elastic properties of the lugs 7 make it possible to clip the fixing foot 6 into the fixing hole 12.
  • the positioning pins 9 are inserted into the fixing hole 12 by being adjusted in this hole mounting 12, which allows secure positioning of the mounting foot 6.
  • the teeth 8 and the stop surfaces 10 enclose the thickness of the side rim 11 between them.
  • the support base 5 is in this way positioned and fixed so as to be in recessed connection with the side flange 11. This operation is simple, quick, and does not require any tools.
  • the doubling of the elastic tab 7 also allows a safety redundancy, so that the breakage of an elastic tab 7 does not lead to failure.
  • the bypass device 3 further comprises a pad 13 facing the support base 5.
  • This pad 13 includes a support groove 14.
  • the bearing groove 14, which is made in the shoe 13, has a width corresponding to the thickness of the second side wall 2 of the cable tray.
  • the bypass device 3 is thus mounted on a guide channel by clipping the support base 5, via the fixing foot 6, on the side edge 11 of the first side wall 1, and by resting the pad 13 on the second side wall 2, the bearing groove 14 enclosing this second side wall 2.
  • the bypass device 3 further comprises a central body 15 which is attached on one side to the support base 5 and on the other side to the pad 13.
  • the attachment of the central body 15 to the pad 13 is achieved by a protective wall 16 against electric arcs.
  • the protective wall 16 is made of an insulating material and has a sufficient thickness to prevent the appearance of electric arcs in view of the voltages implemented in the application.
  • An electric arc can in fact form between the electrical harness 4 which is deflected and other electrical harnesses located in the adjacent guide channel. This risk is present in particular in recent aircraft where the power wiring and the signal wiring can be installed in the same cable paths.
  • the central body 15, the protective wall 16, the shoe 13 and the support base 5 are made in one piece by molding an insulating material.
  • the central body 15 When the bypass device 3 is fixed on the aircraft cable tray, the central body 15 is positioned opposite the corresponding guide channel to allow the seizure of the electrical harness 4 to be deflected.
  • This electrical harness 4 is held in the central body 15 by a deflection jaw 17.
  • Figures 1 and 2 the jaw 17 is shown in the closed position while Figure 3 is a perspective view illustrating the jaw 17 in the open position.
  • Figure 4 illustrates the bypass device 3 in section and shows in particular the profile of the jaw 17.
  • Figure 5 is a view similar to Figure 4 with the jaw 17 in the open position.
  • the jaw 17 comprises two opposite elements intended to tighten the electrical harness 4:
  • the flexible blade 21 has a concave shape adapted to an electrical harness 4 of substantially cylindrical external shape.
  • the flexible covering 19 pushes the electrical harness 4, without damaging it, against the flexible blade 21 which deforms to exert a contained, even calibrated, return force on the harness electrical 4.
  • the lower jaw 18 and the upper jaw 20 are articulated by hinges 22 made by complementary shapes of the jaws 18, 20.
  • the jaw 17 further comprises closing means consisting of elastic tabs 23 located on the lower jaw 18, and complementary orifices 24 made in a yoke 25 which is fixed on the protective wall 16. These means make it possible to maintain the jaw 17 closed, following a simple clipping operation, and allow it to be opened by an unclipping operation, again without tools.
  • Figures 6 and 7 illustrate a second embodiment of the bypass device 3.
  • the flexible blade of the upper jaw 17 is replaced by elastically deformable ribs 26 extending concentrically (that is to say they each extend along a radius of the same cylinder ). These ribs 26 play a role of maintaining the electrical harness 4, and means of exerting a force calibrated by an elastic element.
  • the flexible covering 19 as well as the elastically deformable ribs 26 are preferably molded directly onto the central body 15.
  • FIG. 8 illustrates a third embodiment of the bypass device 3 in which the action of the protective wall 16 is replaced, or supplemented, by a protective bowl 27 extending coaxially to the housing of the jaw 17 which receives the electrical harness 4, that is to say coaxially with the electrical harness 4 itself when it is in place.
  • the protective bowl 27, made of insulating material, provides protection against electric arcs and also provides mechanical protection for the electrical harness 4. This protection concerns the entire portion of the deflected electrical harness which extends between its output from the cable tray and the central body 15. As many branching devices 3 as there are electrical harnesses 4 to be deflected can thus be positioned on a cable tray.
  • these multiple and independent mechanisms allow localized intervention for maintenance and allow, for example, the detection of a particular point of failure without intervening on the entire layout of the path of cables.
  • the angle of deflection of the shunt device 3 may vary to suit a particular use. This angle can go as far as a jaw 17 extending parallel to the direction in which the electrical harnesses run in the cable tray, the deviation then taking place by the curvature of the electrical harness as soon as it comes out of the jaw 17.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

A bypass device (3) having an electrical harness (4) for an aircraft cable raceway, said device being suitable for steering the trajectory of an electrical harness away from a cable guide channel of an aircraft cable raceway, said bypass device being characterised in that it comprises: - a clip-on support base (5); - a pad (13) opposite the support base (5), said pad (13) comprising a support groove; - a central body (15) attached on one side to the support base (5) and on the other side to the pad (13), said central body (15) being suitable for being positioned opposite a cable guide channel when the bypass device (3) is attached to an aircraft cable raceway, said central body (15) comprising a bypass clamp (17) for the electrical harness; the support base (5) and the pad (13) being suitable for being attached to two side walls (1,2) adjacent to a guide channel of a cable raceway.

Description

DESCRIPTION DESCRIPTION
DISPOSITIF DE DERIVATION POUR CHEMIN DE CABLES D’AERONEF JUNCTION DEVICE FOR AIRCRAFT CABLE PATH
DOMAINE TECHNIQUE TECHNICAL AREA
L’invention concerne le domaine de l’aéronautique et vise l’agencement des chemins de câbles au sein des architectures électriques d’aéronef. The invention relates to the field of aeronautics and is aimed at the arrangement of cable trays within the electrical architectures of aircraft.
Les chemins de câbles d’aéronef définissent les trajets des harnais de câblage électrique par rapport à la structure d’un aéronef, en les maintenant en position et en les protégeant. Les harnais de câblage électrique sont constitués des faisceaux de câbles cheminant entre diverses installations électriques de l’aéronef. Aircraft wireways define the paths of electrical wiring harnesses relative to the structure of an aircraft, holding them in position and protecting them. Electrical wiring harnesses are made up of bundles of cables running between various aircraft electrical installations.
ART ANTÉRIEUR PRIOR ART
Les chemins de câbles d’aéronef sont généralement constitués par des profilés s’étendant dans le prolongement les uns des autres. Entre certains profilés, un écart prédéterminé est prévu pour permettre un mouvement relatif des profilés sans dommage. Les chemins de câbles d’aéronef peuvent en effet être fixés sur des parties structurelles de l’aéronef qui peuvent être flexibles. Par exemple, les chemins de câble s’étendant le long des ailes d’un avion sont soumis à un mouvement de flexion d’amplitude relativement importante lors du vol de l’avion. Aircraft cable trays are generally made up of sections extending in the extension of each other. Between some profiles, a predetermined gap is provided to allow relative movement of the profiles without damage. Aircraft cable trays can indeed be fixed on structural parts of the aircraft which can be flexible. For example, the cable trays extending along the wings of an aircraft are subjected to a bending movement of relatively large amplitude during the flight of the aircraft.
Au sein de chaque profilé, les chemins de câble connus comportent des moyens de maintien en place des harnais électriques cheminant dans le chemin de câbles. Pour certaines applications particulières, les chemins de câbles connus comportent également des dispositifs de dérivation permettant de dévier un harnais et de le sortir du chemin de câbles, afin par exemple de le connecter à un équipement à proximité. Within each profile, the known cable trays comprise means for holding in place the electrical harnesses running in the cable tray. For certain particular applications, the known cable trays also include branching devices making it possible to divert a harness and to take it out of the cable tray, in order for example to connect it to nearby equipment.
Les dispositifs de dérivation connus sont généralement des moyens volumineux et lourds fixés sur toute la structure des profilés constituant le chemin de câbles. Known branching devices are generally bulky and heavy means attached to the entire structure of the sections constituting the cable tray.
Le modèle d’utilité DE 20 2017 107545U1 et le brevet JP 2002 218623 décrivent des dispositifs de dérivation de harnais électrique pour chemin de câbles d’aéronef adaptés à dévier la trajectoire dudit harnais en saillie depuis un canal de guidage de câbles d’un chemin de câbles d’aéronef vers l’extérieur du chemin de câbles, Ce canal est délimité par une première paroi latérale et une deuxième paroi latérale pourvues d’un rebord latéral saillant dans lequel est ménagé un orifice traversant dans lequel est clipsé un socle de support muni d’un pied de fixation permettant son rattachement au chemin de câbles au moyen de deux pattes élastiques munies chacune d’une dent, Ce dispositif de dérivation comporte, en outre, Utility model DE 20 2017 107545U1 and patent JP 2002 218623 describe electrical harness derivation devices for aircraft cable trays adapted to deviate the trajectory of said harness projecting from a cable guide channel of a cable tray. of aircraft cables to the outside of the raceway cables, This channel is delimited by a first side wall and a second side wall provided with a projecting side rim in which is provided a through hole in which is clipped a support base provided with a fixing foot allowing its attachment to the path cables by means of two elastic lugs each provided with a tooth, This branching device further comprises,
- un patin opposé au socle et présentant une rainure d’appui dont la largeur correspond à l’épaisseur de la deuxième paroi latérale de façon à enserrer ladite deuxième paroi et, - a shoe opposite the base and having a support groove whose width corresponds to the thickness of the second side wall so as to enclose said second wall and,
- un corps central rattaché d’un côté au socle et de l’autre côté au patin, ce corps central étant adapté à être positionné en vis-à-vis d’un canal de guidage de câbles lorsque le dispositif de dérivation est fixé sur un chemin de câbles d’aéronef, ce corps central comportant une mâchoire de déviation enserrant ledit harnais électrique ; le socle de support et le patin étant adaptés à se fixer sur deux parois latérales adjacentes d’un canal de guidage d’un chemin de câbles, - a central body attached on one side to the base and on the other side to the pad, this central body being adapted to be positioned opposite a cable guide channel when the branching device is fixed on an aircraft cable tray, this central body comprising a deflection jaw gripping said electrical harness; the support base and the pad being adapted to be fixed on two adjacent side walls of a guide channel of a cable tray,
Cependant, les mâchoires de déviation décrites dans ces documents ne sont pas adaptées à la résolution du problème technique à la base de l’invention du fait de l’absence de caractère élastiquement déformable. However, the deflection jaws described in these documents are not suitable for solving the technical problem underlying the invention due to the absence of an elastically deformable character.
Le brevet CN 107 208 826 décrit quant à lui une mâchoire articulée mais qui ne comporte pas non plus d’élément souple et/ou élastiquement déformable. Patent CN 107 208 826 describes an articulated jaw but which also does not include a flexible and/or elastically deformable element.
Les derniers programmes de développements dans le secteur aéronautique sont tournés vers la production d’ailes de dernière génération intégrant de nouvelles technologies et bénéficiant d’un cycle de production accéléré, avec une recherche de gains en temps et en flexibilité lors du montage de l’aéronef. Ces objectifs s’ajoutent aux préoccupations traditionnelles du domaine, à savoir le gain de poids permanent. De ce point de vue, les dispositifs de dérivation connus ne sont pas conformes aux objectifs recherchés. The latest development programs in the aeronautics sector are geared towards the production of latest generation wings integrating new technologies and benefiting from an accelerated production cycle, with a search for time savings and flexibility during assembly of the aircraft. These goals are in addition to the traditional concerns of the field, namely permanent weight gain. From this point of view, the known branching devices do not conform to the desired objectives.
EXPOSÉ DE L’INVENTION DISCLOSURE OF THE INVENTION
L’invention a pour but d’améliorer les dispositifs de dérivation de harnais électrique pour chemin de câbles d’aéronef de l’art antérieur, en vue de répondre aux objectifs de rationalisation de production propres aux programmes d’ailes de dernière génération. À cet effet, l’invention vise un dispositif de dérivation de harnais électrique pour chemin de câbles d’aéronef, ce dispositif étant adapté à dévier la trajectoire d’un harnais électrique depuis un canal de guidage de câbles d’un chemin de câbles d’aéronef, vers l’extérieur du chemin de câbles. Ce dispositif de dérivation comporte :The object of the invention is to improve electrical harness branching devices for aircraft cable trays of the prior art, with a view to meeting the production rationalization objectives specific to the latest generation wing programs. To this end, the invention relates to an electrical harness derivation device for an aircraft cable tray, this device being suitable for deflecting the trajectory of an electrical harness from a cable guide channel of a cable tray of aircraft, to the outside of the cable tray. This bypass device comprises:
- un socle de support clipsable ; - a clip-on support base;
- un patin opposé au socle de support, ce patin comportant une rainure d’appui ;- a runner opposite the support base, this runner comprising a support groove;
- un corps central rattaché d’un côté au socle de support et de l’autre côté au patin, ce corps central étant adapté à être positionné en vis-à-vis d’un canal de guidage de câbles lorsque le dispositif de dérivation est fixé sur un chemin de câbles d’aéronef, ce corps central comportant une mâchoire de déviation pour harnais électrique ; le socle de support et le patin étant adaptés à se fixer sur deux parois latérales adjacentes d’un canal de guidage d’un chemin de câbles. - a central body attached on one side to the support base and on the other side to the pad, this central body being adapted to be positioned opposite a cable guide channel when the branching device is fixed on an aircraft cable tray, this central body comprising a deflection jaw for an electrical harness; the support base and the pad being adapted to be fixed on two adjacent side walls of a guide channel of a cable tray.
Selon un autre objet, l’invention vise un chemin de câbles d’aéronef comportant au moins deux canaux de guidage bordés chacun par une première paroi latérale et une deuxième paroi latérale, et qui comporte : According to another object, the invention relates to an aircraft cable tray comprising at least two guide channels each bordered by a first side wall and a second side wall, and which comprises:
- un rebord latéral saillant d’une face externe de la première paroi latérale d’un premier canal de guidage, ce rebord latéral comportant un orifice de fixation traversant ; - A lateral flange projecting from an outer face of the first side wall of a first guide channel, this lateral flange comprising a through fixing orifice;
- un dispositif de dérivation tel que décrit ci-dessus, dont le socle de support est clipsé dans l’orifice de fixation du rebord latéral et dont le patin est monté sur la deuxième paroi latérale du premier canal de guidage, de sorte que la rainure d’appui s’appuie sur la tranche de cette deuxième paroi latérale, le corps central du dispositif de dérivation étant disposé en vis-à-vis du premier canal de guidage, un harnais électrique saillant du premier canal de guidage étant enserré dans la mâchoire de déviation. - a bypass device as described above, whose support base is clipped into the fixing hole of the side flange and whose shoe is mounted on the second side wall of the first guide channel, so that the groove bearing rests on the edge of this second side wall, the central body of the bypass device being arranged opposite the first guide channel, an electrical harness projecting from the first guide channel being clamped in the jaw of deviation.
Les dispositifs de dérivation de harnais électrique pour chemin de câbles d’aéronef selon l’invention apportent un important gain de matière, et donc de poids, ainsi que de coût, par rapport aux dispositifs de l’art antérieur. The electrical harness branching devices for aircraft cable tray according to the invention provide a significant saving in material, and therefore weight, as well as cost, compared to the devices of the prior art.
Les canaux de guidage de câbles sont individualisés et un dispositif de dérivation de harnais électrique peut être posé ou déposé dans chaque canal de guidage de câbles, sans impacter les autres canaux de guidage de câbles. La conception du dispositif selon l’invention est considérablement simplifiée par rapport à l’art antérieur dans lequel ces mêmes dispositifs comportent généralement des feuilles d’aluminium pliées et mises en forme sur lesquelles sont fixés des adaptateurs, coûteux et lourds, et requérant des temps de montage importants avec des outils adaptés. The cable guide channels are individualized and an electrical harness branching device can be installed or removed in each cable guide channel, without impacting the other cable guide channels. The design of the device according to the invention is considerably simplified compared to the prior art in which these same devices generally comprise folded and shaped aluminum sheets on which adapters are fixed, expensive and heavy, and requiring time important assembly steps with suitable tools.
Le dispositif de dérivation selon l’invention peut être déposé sans déconnecter le harnais électrique qu’il dévie. Il suffit en effet d’ouvrir la mâchoire de déviation du corps central et de déclipser le dispositif de dérivation du chemin de câbles d’aéronef pour le déposer et libérer ainsi le harnais électrique qui était dévié. La pose (ou repose) du dispositif de dérivation peut se faire également en gardant en place le harnais électrique à dévier, sans la nécessité de déconnecter ce dernier. Le dispositif de dérivation peut donc être posé après que les câblages ont été réalisés et notamment après que le harnais électrique à dévier a été monté et raccordé aux équipements électriques. En comparaison à l’art antérieur, cette possibilité enlève une contrainte forte qui pesait sur le procédé de montage d’un aéronef. The bypass device according to the invention can be removed without disconnecting the electrical harness that it diverts. All you have to do is open the deflection jaw of the central body and unclip the bypass device from the aircraft cable tray to remove it and thus release the electrical harness that was deflected. The laying (or refitting) of the bypass device can also be done by keeping the electrical harness to be diverted in place, without the need to disconnect the latter. The bypass device can therefore be installed after the wiring has been completed and in particular after the electrical harness to be diverted has been mounted and connected to the electrical equipment. Compared to the prior art, this possibility removes a strong constraint that weighed on the assembly process of an aircraft.
Le dispositif de dérivation est mis en place par clipsage sur le chemin de câbles puis le harnais électrique, qui est déjà connecté, est ensuite inséré dans la mâchoire de dérivation, et cette dernière est refermée. The branching device is put in place by clipping onto the cable tray, then the electrical harness, which is already connected, is then inserted into the branching jaw, and the latter is closed.
De plus, selon une caractéristique préférée, ces opérations sont effectuées sans outil, rapidement, et avec un faible degré de complexité. Moreover, according to a preferred characteristic, these operations are carried out without tools, quickly, and with a low degree of complexity.
Le dispositif de dérivation selon l’invention peut comporter les caractéristiques additionnelles suivantes, seules ou en combinaison : The bypass device according to the invention may comprise the following additional characteristics, alone or in combination:
- le socle de support comporte un pied de fixation qui comprend des éléments élastiques de clispage ; - the support base comprises a fixing foot which comprises elastic clipping elements;
- le pied de fixation comporte au moins deux pattes élastiques comportant chacune une dent ; - the fixing foot comprises at least two elastic lugs each comprising a tooth;
- le pied de fixation comporte des pions de positionnement encadrant les pattes élastiques ; - the fixing foot comprises positioning pins framing the elastic tabs;
- le pied de fixation comporte des surfaces d’arrêt opposées aux dents des pattes élastiques ; - la mâchoire de déviation comporte une mâchoire inférieure articulée à une mâchoire supérieure, dont l’une est munie d’un revêtement souple et l’autre est munie d’un élément élastiquement déformable ; - The fixing foot has stop surfaces opposite the teeth of the elastic tabs; - the deflection jaw comprises a lower jaw hinged to an upper jaw, one of which is provided with a flexible coating and the other is provided with an elastically deformable element;
- ledit élément élastiquement déformable est une lame concave flexible ; - ledit élément élastiquement déformable est un ensemble de nervures élastiquement déformables s'étendant coaxialement ; - Said elastically deformable element is a flexible concave blade; - Said elastically deformable element is a set of elastically deformable ribs extending coaxially;
- le patin est rattaché au corps central par une paroi de protection isolante ;- the pad is attached to the central body by an insulating protective wall;
- le corps central comporte une cuvette de protection saillante de la mâchoire de déviation. Le chemin de câbles d’aéronef selon l’invention peut comporter la caractéristique additionnelle suivante : - the central body comprises a protruding protective cup of the deflection jaw. The aircraft cable tray according to the invention may include the following additional feature:
- la rainure d’appui présente une largeur correspondant à l’épaisseur de la deuxième paroi latérale. - the support groove has a width corresponding to the thickness of the second side wall.
PRÉSENTATION DES FIGURES D’autres caractéristiques et avantages de l’invention ressortiront de la description non limitative qui suit, en référence aux dessins annexés dans lesquels : PRESENTATION OF THE FIGURES Other characteristics and advantages of the invention will emerge from the non-limiting description which follows, with reference to the appended drawings in which:
- la figure 1 représente en perspective un chemin de câbles d’aéronef muni de dispositifs de dérivation selon l’invention ; - Figure 1 shows in perspective an aircraft cable tray provided with branching devices according to the invention;
- la figure 2 représente un dispositif de dérivation selon l’invention ; - la figure 3 représente le dispositif de dérivation de la figure 2 avec sa mâchoire de déviation ouverte ; - Figure 2 shows a bypass device according to the invention; - Figure 3 shows the bypass device of Figure 2 with its deflection jaw open;
- la figure 4 représente le dispositif de dérivation de la figure 2 vu en coupe ;- Figure 4 shows the bypass device of Figure 2 seen in section;
- la figure 5 représente le dispositif de dérivation vu en coupe avec sa mâchoire de déviation ouverte ; - la figure 6 représente un dispositif de dérivation selon un deuxième mode de réalisation de l’invention ; - Figure 5 shows the bypass device seen in section with its deflection jaw open; - Figure 6 shows a bypass device according to a second embodiment of the invention;
- la figure 7 représente le dispositif de dérivation de la figure 6, vu en coupe ; - la figure 8 représente un dispositif de dérivation selon un troisième mode de réalisation de l’invention. - Figure 7 shows the bypass device of Figure 6, seen in section; - Figure 8 shows a bypass device according to a third embodiment of the invention.
Les éléments similaires et communs aux divers modes de réalisation portent les mêmes numéros de renvoi aux figures. Similar elements common to the various embodiments bear the same reference numbers in the figures.
DESCRIPTION DÉTAILLÉE DETAILED DESCRIPTION
La figure 1 illustre un chemin de câbles d’aéronef muni de dispositifs de dérivation de harnais électriques, selon l’invention. Figure 1 illustrates an aircraft cable tray provided with electrical harness branching devices, according to the invention.
Le chemin de câbles d’aéronef est un chemin de câbles classique réalisé par exemple par un profilé métallique, définissant plusieurs canaux de guidage de câbles comme autant de voies dans lesquelles peuvent être disposés des harnais électriques à guider et à protéger. The aircraft cable tray is a conventional cable tray made for example by a metal profile, defining several cable guide channels as so many paths in which electrical harnesses to be guided and protected can be placed.
Le chemin de câbles illustré (seule une portion de ce chemin de câbles est visible sur la partie supérieure de la figure 1 ) comporte ainsi une première paroi latérale 1 (qui forme la paroi latérale externe du chemin de câbles) et une deuxième paroi latérale 2. Ces deux parois 1 , 2 délimitent un premier canal de guidage. Dans le présent exemple, le chemin de câbles comporte également un deuxième canal de guidage, adjacent au premier (la deuxième paroi latérale 2 sépare les deux canaux de guidage). The cable tray shown (only a portion of this cable tray is visible in the upper part of Figure 1) thus comprises a first side wall 1 (which forms the outer side wall of the cable tray) and a second side wall 2 These two walls 1, 2 define a first guide channel. In the present example, the cable tray also includes a second guide channel, adjacent to the first (the second side wall 2 separates the two guide channels).
Un dispositif de dérivation 3 est monté sur chacun des canaux de guidage, de manière à dévier la trajectoire d’un harnais électrique depuis chaque canal de guidage, vers l’extérieur du chemin de câbles. A bypass device 3 is mounted on each of the guide channels, so as to deviate the trajectory of an electrical harness from each guide channel, towards the outside of the cable tray.
Chaque dispositif de dérivation 3 maintien le harnais électrique 4 dévié en le positionnant pour qu’il forme une cambrure saillante par rapport au canal de guidage duquel il est issu. Les harnais électriques 4 peuvent ainsi être extraits du chemin de câbles par le dispositif de dérivation 3, pour être raccordé par exemple à un équipement ou pour rejoindre un autre chemin de câbles. Each derivation device 3 keeps the electrical harness 4 deviated by positioning it so that it forms a projecting curvature with respect to the guide channel from which it comes. The electrical harnesses 4 can thus be extracted from the cable tray by the branching device 3, to be connected for example to equipment or to join another cable tray.
Dans l’exemple illustré, les harnais électriques 4 déviés sont des faisceaux de câbles illustrés sur la figure 1 par un conducteur électrique et sa gaine. Le dispositif de dérivation 3 peut dévier toute autre sorte de harnais électrique du chemin de câbles. La figure 2 illustre en perspective l’un des dispositifs de dérivation 3 de la figureIn the example shown, the electrical harnesses 4 deflected are bundles of cables illustrated in FIG. 1 by an electrical conductor and its sheath. The bypass device 3 can divert any other kind of electrical harness from the cable tray. FIG. 2 illustrates in perspective one of the branching devices 3 of FIG.
1. 1.
Ce dispositif de dérivation 3 comporte un socle de support 5 qui est muni d’un pied de fixation 6 permettant son rattachement au chemin de câbles. Le pied de fixation 6 comporte deux pattes élastiques 7 munies chacune d’une dent 8. Les pattes élastiques 7 sont encadrées par deux pions de positionnement 9. This branching device 3 comprises a support base 5 which is fitted with a fixing foot 6 allowing it to be attached to the cable tray. The fixing foot 6 comprises two elastic lugs 7 each provided with a tooth 8. The elastic lugs 7 are framed by two positioning pins 9.
Le pied de fixation 6 comporte de plus deux surfaces d’arrêt 10 opposées aux dents 8. The fixing foot 6 further comprises two stop surfaces 10 opposite the teeth 8.
Le pied de fixation 6 permet au socle de support 5 d’être clipsable sur le chemin de câbles. À cet effet, le chemin de câbles comporte sur chacune de ses parois externes (en référence à la figure 1, la première paroi latérale 1 est une de ces parois externes), un rebord latéral 11 saillant de la face externe de cette paroi externe. The fixing foot 6 allows the support base 5 to be clipped onto the cable tray. To this end, the cable tray comprises on each of its outer walls (with reference to FIG. 1, the first side wall 1 is one of these outer walls), a side flange 11 projecting from the outer face of this outer wall.
La première paroi latérale 1 comporte ainsi un rebord latéral 11 saillant de la face externe de cette paroi latérale 1. Ce rebord latéral 11 comporte un orifice de fixation traversant 12 qui est, dans le présent exemple, de section rectangulaire. The first side wall 1 thus comprises a side rim 11 projecting from the outer face of this side wall 1. This side rim 11 comprises a through fixing hole 12 which is, in the present example, of rectangular section.
Les propriétés élastiques des pattes 7 permettent de clipser le pied de fixation 6 dans l’orifice de fixation 12. Lors de cette opération de clipsage, les pions de positionnement 9 s’insèrent dans l’orifice de fixation 12 en étant ajustés dans cet orifice de fixation 12, ce qui permet un positionnement sûr du pied de fixation 6. The elastic properties of the lugs 7 make it possible to clip the fixing foot 6 into the fixing hole 12. During this clipping operation, the positioning pins 9 are inserted into the fixing hole 12 by being adjusted in this hole mounting 12, which allows secure positioning of the mounting foot 6.
Après l’opération de clipsage, les dents 8 et les surfaces d’arrêt 10 enserrent l’épaisseur du rebord latéral 11 entre elles. Le socle de support 5 est de cette manière positionné et fixé pour se trouver en liaison d’encastrement avec le rebord latéral 11. Cette opération est simple, rapide, et ne nécessite aucun outil. After the clipping operation, the teeth 8 and the stop surfaces 10 enclose the thickness of the side rim 11 between them. The support base 5 is in this way positioned and fixed so as to be in recessed connection with the side flange 11. This operation is simple, quick, and does not require any tools.
Le doublement de la patte élastique 7 permet de plus une redondance de sécurité, de sorte que la casse d’une patte élastique 7 n’entraine pas de défaillance. The doubling of the elastic tab 7 also allows a safety redundancy, so that the breakage of an elastic tab 7 does not lead to failure.
Le dispositif de dérivation 3 comporte de plus un patin 13 en vis-à-vis du socle de support 5. Ce patin 13 comporte une rainure d’appui 14. The bypass device 3 further comprises a pad 13 facing the support base 5. This pad 13 includes a support groove 14.
La rainure d’appui 14, qui est pratiquée dans le patin 13, présente une largeur correspondant à l’épaisseur de la deuxième paroi latérale 2 du chemin de câbles. Le dispositif de dérivation 3 est ainsi monté sur un canal de guidage en clipsant le socle de support 5, via le pied de fixation 6, sur le rebord latéral 11 de la première paroi latérale 1, et en mettant en appui le patin 13 sur la deuxième paroi latérale 2, la rainure d’appui 14 venant enserrer cette deuxième paroi latérale 2. The bearing groove 14, which is made in the shoe 13, has a width corresponding to the thickness of the second side wall 2 of the cable tray. The bypass device 3 is thus mounted on a guide channel by clipping the support base 5, via the fixing foot 6, on the side edge 11 of the first side wall 1, and by resting the pad 13 on the second side wall 2, the bearing groove 14 enclosing this second side wall 2.
Le dispositif de dérivation 3 comporte de plus un corps central 15 qui est rattaché d’un côté au socle de support 5 et de l’autre côté au patin 13. The bypass device 3 further comprises a central body 15 which is attached on one side to the support base 5 and on the other side to the pad 13.
Le rattachement du corps central 15 au patin 13 est réalisé par une paroi de protection 16 contre les arcs électriques. La paroi de protection 16 est réalisée en un matériau isolant et présente une épaisseur suffisante pour empêcher l’apparition d’arcs électriques au vu des tensions mises en œuvre dans l’application. Un arc électrique peut en effet se former entre le harnais électrique 4 qui est dévié et d’autres harnais électriques situés dans le canal de guidage adjacent. Ce risque est présent notamment dans les aéronefs récents où les câblages de puissance et les câblages de signaux peuvent être installés dans les mêmes chemins de câble. The attachment of the central body 15 to the pad 13 is achieved by a protective wall 16 against electric arcs. The protective wall 16 is made of an insulating material and has a sufficient thickness to prevent the appearance of electric arcs in view of the voltages implemented in the application. An electric arc can in fact form between the electrical harness 4 which is deflected and other electrical harnesses located in the adjacent guide channel. This risk is present in particular in recent aircraft where the power wiring and the signal wiring can be installed in the same cable paths.
Dans le présent exemple, le corps central 15, la paroi de protection 16, le patin 13 et le socle de support 5 sont réalisés d’une seule pièce par moulage d’un matériau isolant. In this example, the central body 15, the protective wall 16, the shoe 13 and the support base 5 are made in one piece by molding an insulating material.
Lorsque le dispositif de dérivation 3 est fixé sur le chemin de câbles d’aéronef, le corps central 15 est positionné en vis-à-vis du canal de guidage correspondant pour permettre la saisie du harnais électrique 4 à dévier. Ce harnais électrique 4 est maintenu dans le corps central 15 par une mâchoire 17 de déviation. When the bypass device 3 is fixed on the aircraft cable tray, the central body 15 is positioned opposite the corresponding guide channel to allow the seizure of the electrical harness 4 to be deflected. This electrical harness 4 is held in the central body 15 by a deflection jaw 17.
Sur les figures 1 et 2, la mâchoire 17 est représentée en position fermée tandis que la figure 3 est une vue en perspective illustrant la mâchoire 17 en position ouverte. In Figures 1 and 2, the jaw 17 is shown in the closed position while Figure 3 is a perspective view illustrating the jaw 17 in the open position.
La figure 4 illustre le dispositif de dérivation 3 en coupe et montre notamment le profil de la mâchoire 17. La figure 5 est une vue similaire à la figure 4 avec la mâchoire 17 en position ouverte. Figure 4 illustrates the bypass device 3 in section and shows in particular the profile of the jaw 17. Figure 5 is a view similar to Figure 4 with the jaw 17 in the open position.
La mâchoire 17 comporte deux éléments opposés destinés à serrer le harnais électrique 4 : The jaw 17 comprises two opposite elements intended to tighten the electrical harness 4:
- une mâchoire inférieure 18 munie d’un revêtement souple 19 ; - a lower jaw 18 provided with a flexible coating 19;
- une mâchoire supérieure 20 munie d’une lame flexible 21. La lame flexible 21 présente une forme concave adaptée à un harnais électrique 4 de forme externe sensiblement cylindrique. Lors du serrage de la mâchoire 17 sur le harnais électrique 4, le revêtement souple 19 repousse le harnais électrique 4, sans l’endommager, contre la lame flexible 21 qui se déforme pour exercer un effort de rappel contenu, voire calibré, sur le harnais électrique 4. - an upper jaw 20 provided with a flexible blade 21. The flexible blade 21 has a concave shape adapted to an electrical harness 4 of substantially cylindrical external shape. When the jaw 17 is tightened on the electrical harness 4, the flexible covering 19 pushes the electrical harness 4, without damaging it, against the flexible blade 21 which deforms to exert a contained, even calibrated, return force on the harness electrical 4.
Une bonne tenue du harnais électrique 4 est ainsi obtenue, sans risque d’endommagement (compte tenu du niveau de sécurité exigé pour le câblage dans le domaine aéronautique). A good hold of the electrical harness 4 is thus obtained, without risk of damage (given the level of safety required for wiring in the aeronautical field).
Dans le présent exemple, la mâchoire inférieure 18 et la mâchoire supérieure 20 sont articulées par des charnières 22 réalisées par des formes complémentaires des mâchoires 18, 20. In the present example, the lower jaw 18 and the upper jaw 20 are articulated by hinges 22 made by complementary shapes of the jaws 18, 20.
La mâchoire 17 comporte de plus des moyens de fermeture constitués de pattes élastiques 23 situées sur la mâchoire inférieure 18, et d’orifices complémentaires 24 pratiqués dans une chape 25 qui est fixée sur la paroi de protection 16. Ces moyens permettent de maintenir la mâchoire 17 fermée, suite à une simple opération de clipsage, et permettent de l’ouvrir par une opération de déclipsage, toujours sans outil. The jaw 17 further comprises closing means consisting of elastic tabs 23 located on the lower jaw 18, and complementary orifices 24 made in a yoke 25 which is fixed on the protective wall 16. These means make it possible to maintain the jaw 17 closed, following a simple clipping operation, and allow it to be opened by an unclipping operation, again without tools.
Les figures 6 et 7 illustrent un deuxième mode de réalisation du dispositif de dérivation 3. Figures 6 and 7 illustrate a second embodiment of the bypass device 3.
Selon ce deuxième mode de réalisation, la lame flexible de la mâchoire supérieure 17 est remplacée par des nervures élastiquement déformables 26 s’étendant concentriquement (c’est-à-dire qu’elles s’étendant chacune selon un rayon d’un même cylindre). Ces nervures 26 jouent un rôle de maintien du harnais électrique 4, et de moyens d’exercice d’une force calibrée par un élément élastique. According to this second embodiment, the flexible blade of the upper jaw 17 is replaced by elastically deformable ribs 26 extending concentrically (that is to say they each extend along a radius of the same cylinder ). These ribs 26 play a role of maintaining the electrical harness 4, and means of exerting a force calibrated by an elastic element.
Le revêtement souple 19 ainsi que les nervures élastiquement déformables 26 sont de préférence surmoulés directement sur corps central 15. The flexible covering 19 as well as the elastically deformable ribs 26 are preferably molded directly onto the central body 15.
La figure 8 illustre un troisième mode de réalisation du dispositif de dérivation 3 dans lequel l’action de la paroi de protection 16 est remplacée, ou complétée, par une cuvette de protection 27 s’étendant coaxialement au logement de la mâchoire 17 qui reçoit le harnais électrique 4, c’est-à-dire coaxialement au harnais électrique 4 lui- même lorsqu’il est en place. La cuvette de protection 27, réalisée en matériau isolant, assure une protection contre les arcs électriques et assure également une protection mécanique du harnais électrique 4. Cette protection concerne toute la portion du harnais électrique dévié qui s’étendant entre sa sortie du chemin de câbles et le corps central 15. Autant de dispositifs de dérivation 3 que de harnais électrique 4 à dévier peuvent ainsi être positionnés sur un chemin de câbles. En plus des avantages relatifs au procédé de montage de l’aéronef, ces mécanismes multiples et indépendants permettent une intervention localisée pour la maintenance et permettent par exemple la détection d’un point de défaillance particulier sans intervenir sur l’ensemble de l’agencement du chemin de câbles. FIG. 8 illustrates a third embodiment of the bypass device 3 in which the action of the protective wall 16 is replaced, or supplemented, by a protective bowl 27 extending coaxially to the housing of the jaw 17 which receives the electrical harness 4, that is to say coaxially with the electrical harness 4 itself when it is in place. The protective bowl 27, made of insulating material, provides protection against electric arcs and also provides mechanical protection for the electrical harness 4. This protection concerns the entire portion of the deflected electrical harness which extends between its output from the cable tray and the central body 15. As many branching devices 3 as there are electrical harnesses 4 to be deflected can thus be positioned on a cable tray. In addition to the advantages relating to the assembly process of the aircraft, these multiple and independent mechanisms allow localized intervention for maintenance and allow, for example, the detection of a particular point of failure without intervening on the entire layout of the path of cables.
Des variantes de réalisation du dispositif de dérivation 3 peuvent être mises en œuvre. Par exemple, l’angle de déviation du dispositif de dérivation 3 peut varier pour s’adapter à un usage particulier. Cet angle peut aller jusqu’à une mâchoire 17 s’étendant parallèlement à la direction dans laquelle cheminent les harnais électriques dans le chemin de câbles, la déviation se faisant alors par la courbure du harnais électrique dès la sortie de la mâchoire 17. Alternative embodiments of the bypass device 3 can be implemented. For example, the angle of deflection of the shunt device 3 may vary to suit a particular use. This angle can go as far as a jaw 17 extending parallel to the direction in which the electrical harnesses run in the cable tray, the deviation then taking place by the curvature of the electrical harness as soon as it comes out of the jaw 17.

Claims

REVENDICATIONS
1. Dispositif de dérivation (3) de harnais électrique (4) pour chemin de câbles d’aéronef, ce dispositif étant adapté à dévier la trajectoire dudit harnais en saillie depuis un canal de guidage de câbles d’un chemin de câbles d’aéronef vers l’extérieur du chemin de câbles, ledit canal étant délimité par une première paroi latérale (1) et une deuxième paroi latérale (2) pourvues d’un rebord latéral saillant (11) dans lequel est ménagé un orifice traversant (12) dans lequel est clipsé un socle (5) de support muni d’un pied de fixation (6) permettant son rattachement au chemin de câbles au moyen de deux pattes élastiques (7) munies chacune d’une dent (8), ce dispositif de dérivation (3) comportant, en outre, 1. Derivation device (3) for an electrical harness (4) for an aircraft cable tray, this device being adapted to deviate the trajectory of said harness projecting from a cable guide channel of an aircraft cable tray towards the outside of the cable tray, said channel being delimited by a first side wall (1) and a second side wall (2) provided with a projecting side rim (11) in which is formed a through hole (12) in which is clipped on a support base (5) provided with a fixing foot (6) allowing its attachment to the cable tray by means of two elastic lugs (7) each provided with a tooth (8), this branching device (3) comprising, in addition,
- un patin (13) opposé au socle (5) et présentant une rainure d’appui (14) dont la largeur correspond à l’épaisseur de la deuxième paroi latérale (2) de façon à enserrer ladite deuxième paroi et, - a shoe (13) opposite the base (5) and having a support groove (14) whose width corresponds to the thickness of the second side wall (2) so as to grip said second wall and,
- un corps central (15) rattaché d’un côté au socle (5) et de l’autre côté au patin (13), ce corps central (15) étant adapté à être positionné en vis-à-vis d’un canal de guidage de câbles lorsque le dispositif de dérivation (3) est fixé sur un chemin de câbles d’aéronef, ce corps central (15) comportant une mâchoire de déviation (17) enserrant ledit harnais électrique (4) ; le socle de support (5) et le patin (13) étant adaptés à se fixer sur deux parois latérales (1,2) adjacentes d’un canal de guidage d’un chemin de câbles, ledit dispositif de dérivation (3) étant caractérisé en ce que la mâchoire de déviation (17) comporte une mâchoire inférieure (18) articulée à une mâchoire supérieure (20), dont l’une est munie d’un revêtement souple (19) et l’autre est munie d’un élément élastiquement déformable. - a central body (15) attached on one side to the base (5) and on the other side to the pad (13), this central body (15) being adapted to be positioned opposite a channel for guiding cables when the branching device (3) is fixed to an aircraft cable tray, this central body (15) comprising a deflection jaw (17) enclosing the said electrical harness (4); the support base (5) and the shoe (13) being adapted to be fixed on two adjacent side walls (1,2) of a guide channel of a cable tray, said branching device (3) being characterized in that the deflecting jaw (17) comprises a lower jaw (18) hinged to an upper jaw (20), one of which is provided with a flexible covering (19) and the other is provided with an element elastically deformable.
2. Dispositif de dérivation selon la revendication 1, caractérisé en ce que le pied de fixation (6) comporte des pions de positionnement (9) encadrant les pattes élastiques (7). 2. Diversion device according to claim 1, characterized in that the fixing foot (6) comprises positioning pins (9) surrounding the elastic tabs (7).
3. Dispositif de dérivation selon l’une des revendications précédentes, caractérisé en ce que le pied de fixation (6) comporte des surfaces d’arrêt (10) opposées aux dents (8) des pattes élastiques (7). 3. Diversion device according to one of the preceding claims, characterized in that the fixing foot (6) has stop surfaces (10) opposite the teeth (8) of the elastic tabs (7).
4. Dispositif de dérivation selon l’une des revendications précédentes, caractérisé en ce que ledit élément élastiquement déformable est une lame concave flexible (21). 4. Bypass device according to one of the preceding claims, characterized in that said elastically deformable element is a flexible concave blade (21).
5. Dispositif de dérivation selon l’une des revendications 1 à 3, caractérisé en ce que ledit élément élastiquement déformable est un ensemble de nervures élastiquement déformables (26) s'étendant coaxialement. 5. Bypass device according to one of claims 1 to 3, characterized in that said elastically deformable element is a set of elastically deformable ribs (26 ) extending coaxially.
6. Dispositif de dérivation selon l'une des revendications précédentes, caractérisé en ce que le patin (13) est rattaché au corps central (15) par une paroi de protection (16) isolante. 6. Bypass device according to one of the preceding claims, characterized in that the pad (13) is attached to the central body (15) by a protective wall (16) insulating.
7. Dispositif de dérivation selon l'une des revendications précédentes, caractérisé en ce que le corps central (15) comporte une cuvette de protection (27) saillante de la mâchoire de déviation (17). 7. Diversion device according to one of the preceding claims, characterized in that the central body (15) comprises a protective cup (27) projecting from the deflection jaw (17).
8. Chemin de câbles d’aéronef comportant au moins deux canaux de guidage bordés chacun par une première paroi latérale (1) et une deuxième paroi latérale (2), caractérisé en ce qu’il comporte : 8. Aircraft cable tray comprising at least two guide channels each bordered by a first side wall (1) and a second side wall (2), characterized in that it comprises:
- un rebord latéral (11) saillant d’une face externe de la première paroi latérale (1) d’un premier canal de guidage, ce rebord latéral (11) comportant un orifice de fixation (12) traversant ; - a lateral flange (11) projecting from an outer face of the first side wall (1) of a first guide channel, this lateral flange (11) comprising a fixing orifice (12) passing through;
- un dispositif de dérivation (3) selon l’une des revendications 1 à 7, dont le socle de support (5) est clipsé dans l’orifice de fixation (12) du rebord latéral (11) et dont le patin (13) est monté sur la deuxième paroi latérale (2) du premier canal de guidage, de sorte que la rainure d’appui (14) s’appuie sur la tranche de cette deuxième paroi latérale (2), le corps central (15) du dispositif de dérivation (3) étant disposé en vis-à-vis du premier canal de guidage, un harnais électrique (4) saillant du premier canal de guidage étant enserré dans la mâchoire de déviation (17). - a bypass device (3) according to one of claims 1 to 7, the support base (5) of which is clipped into the fixing hole (12) of the lateral flange (11) and the shoe (13) of which is mounted on the second side wall (2) of the first guide channel, so that the support groove (14) rests on the edge of this second side wall (2), the central body (15) of the device branch (3) being arranged opposite the first guide channel, an electrical harness (4) projecting from the first guide channel being clamped in the deflection jaw (17).
9. Chemin de câbles d’aéronef selon la revendication 8, caractérisé en ce que la rainure d’appui (14) présente une largeur correspondant à l’épaisseur de la deuxième paroi latérale (2). 9. Aircraft cable tray according to claim 8, characterized in that the support groove (14) has a width corresponding to the thickness of the second side wall (2).
EP22754816.1A 2021-07-28 2022-07-19 Bypass device for an aircraft cable raceway Pending EP4378038A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2108219A FR3125925B1 (en) 2021-07-28 2021-07-28 Diversion device for aircraft cable tray
PCT/EP2022/070275 WO2023006527A1 (en) 2021-07-28 2022-07-19 Bypass device for an aircraft cable raceway

Publications (1)

Publication Number Publication Date
EP4378038A1 true EP4378038A1 (en) 2024-06-05

Family

ID=77711157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22754816.1A Pending EP4378038A1 (en) 2021-07-28 2022-07-19 Bypass device for an aircraft cable raceway

Country Status (3)

Country Link
EP (1) EP4378038A1 (en)
FR (1) FR3125925B1 (en)
WO (1) WO2023006527A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002218623A (en) * 2001-01-16 2002-08-02 Sumitomo Wiring Syst Ltd Protector for wire harness and structure for fixing protector to vehicle body
DE102010039134B4 (en) * 2010-08-10 2013-11-07 Airbus Operations Gmbh Aerial or spacecraft with a device for supporting systems
ES2843641T3 (en) * 2015-02-13 2021-07-19 Walraven Holding Bv J Van Pipe clamp
DE202017107545U1 (en) * 2017-12-12 2019-03-18 A. Raymond Et Cie Scs mounting bracket

Also Published As

Publication number Publication date
WO2023006527A1 (en) 2023-02-02
FR3125925A1 (en) 2023-02-03
FR3125925B1 (en) 2024-06-07

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