WO2022189368A1 - Aircraft cable tray with flexible flange - Google Patents

Aircraft cable tray with flexible flange Download PDF

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Publication number
WO2022189368A1
WO2022189368A1 PCT/EP2022/055777 EP2022055777W WO2022189368A1 WO 2022189368 A1 WO2022189368 A1 WO 2022189368A1 EP 2022055777 W EP2022055777 W EP 2022055777W WO 2022189368 A1 WO2022189368 A1 WO 2022189368A1
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WO
WIPO (PCT)
Prior art keywords
cable tray
bearing surface
cable
aircraft
fixing hole
Prior art date
Application number
PCT/EP2022/055777
Other languages
French (fr)
Inventor
Jay NICHOLAS
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 WO2022189368A1 publication Critical patent/WO2022189368A1/en

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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
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0437—Channels
    • 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

Definitions

  • the invention relates to the field of aeronautics and is aimed at the arrangement of cable paths within the electrical architectures of aircraft.
  • Aircraft raceways define the routes of electrical wiring harnesses 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 paths comprise inserts arranged in each cable guide channel.
  • These inserts comprise various elements such as notched columns arranged on the internal walls of the guide channel and making it possible to press an element against the harnesses in order to hold them in place.
  • These inserts are generally expensive and their installation lengthens the assembly time of the aircraft (many inserts are provided for a cable raceway, and an aircraft comprises numerous cable raceways).
  • Their size also requires a corresponding dimensioning of the cable paths, with cable guide channels wider than strictly necessary imposed by the size of the harness to be maintained, and therefore an additional cost and excess weight as a result.
  • Such cable paths are described, in particular, in JP 2014 093817 A and in US 2013/075153A1.
  • the object of the invention is to improve the layouts of cable paths within aircraft of the prior art.
  • the invention relates to an aircraft cable tray, comprising a profile which comprises two side walls extending parallel to a lateral retention plane, each side wall having an outer face and an inner face, this profile delimiting at least one cable guide channel extending parallel to the lateral retention plane, this aircraft cable tray comprising:
  • this lateral flange comprising: a through fixing hole; an upper support surface juxtaposed with the through fixing hole; a lower support surface juxtaposed with the through fixing hole;
  • a cable retention device comprising: a base fitted with a foot inserted into the through fixing hole and comprising stop surfaces arranged against the lower bearing surface and against the upper bearing surface; a flexible wing which is provided at one of its ends with a pad arranged in the cable guide channel, and which is attached to the base by an elastic clip.
  • the presence of a side flange includes the possibility that the profile has several side flanges, as in the example of the detailed description.
  • the presence of a through-mounting hole and a cable retention device includes the possibility that the cable tray has several through-mounting holes and several cable retention devices, as in the example of the detailed description.
  • the presence of a flexible wing includes the possibility that the cable retention device comprises several flexible wings, as in the example of the detailed description.
  • Such an aircraft cable tray does not include any element encumbering the cable guide channel receiving the cable retention device. Maintaining the electrical harness of a cable guide channel is thus ensured without interfering with the content of the cable tray.
  • the cable tray can thus be sized as accurately as possible. In particular, the width of the elements of the profile (generally metallic) forming the cable guide channels can be reduced, resulting in a gain in material and weight.
  • the electrical harness(es) are only held by an elastic wing acting directly on these harnesses without requiring holding from inside the section.
  • This elastic wing is held by the cable retention device, the only fixing of which is located on an external face of the profile.
  • the invention allows, in addition to savings in mass, material and cost, productivity gains.
  • the assembly time of the aircraft cable tray is in fact reduced thanks to rapid installation of the retention devices, for example, by simple clipping.
  • the mounting and tightening of the holding devices is done without possible error by the cooperation of the foot of the base with the through fixing hole.
  • the cable retention device does not require any mechanical connection between the parts, and is preferably made in one piece. Despite this construction, the cable retention device provides optimal support for the electrical harnesses, combining firmness and flexibility, without any concentration of stress within the part. The cable retention device thus benefits from better operating safety and a longer service life.
  • the assembly of the cable retention device is done without tools and without resorting to a tightening operation, which guarantees safety and repeatability in the tightening of the harnesses.
  • the aircraft cable tray according to the invention may comprise the following additional characteristics, alone or in combination:
  • the base has upper elastic tabs defining upper stop surfaces arranged against the upper bearing surface of the side rim; - the upper elastic tabs are elastically deformed in bending by the support of the upper stop surfaces on the upper bearing surface of the side rim;
  • the base has lower elastic tabs defining lower stop surfaces arranged against the lower bearing surface of the side rim;
  • the lower elastic tabs have a tooth allowing the lower elastic tabs to be clipped through the through fixing hole
  • the lower elastic tabs are elastically deformed in traction by the support of the lower stop surfaces on the lower support surface of the side edge;
  • the foot has a pin fitted in the through fixing hole
  • the flexible wing has a thickness decreasing from the base towards the base;
  • the elastic fastener consists of a wavy tongue
  • the elastic clip has a portion whose profile is U-shaped.
  • FIG. 1 shows in perspective a cable tray according to the invention
  • FIG. 2 and Figure 3 show in perspective a cable retention device of the cable tray of Figure 1;
  • FIG. 4 is a front view of the cable retention device
  • FIG. 5 illustrates a cable retention device mounted on the cable tray
  • FIG. 6 is a top view of the cable retention device
  • FIG. 7 is a sectional view of the cable tray of Figure 1.
  • FIG. 1 illustrates a portion of an aircraft cable tray which here consists of a profile 1.
  • This example refers to a double cable tray, the profile 1 delimiting two parallel cable guide channels 2, 3.
  • the profile 1 is produced in a conventional manner in this field, for example by bending a metal sheet.
  • the cable guide channels 2, 3 each receive one or more electrical harnesses or other wiring elements.
  • the content of channels 2, 3 is maintained thanks to cable retention devices 4 which are in this example arranged near each end of channels 2, 3.
  • the two ends of profile 1 are provided with elastic fasteners 6 allowing each end of profile 1 to be connected to another identical profile to form the cable tray adapted to the desired length.
  • This complete cable tray is thus mounted on the structure of the aircraft so that the different sections 1 have a degree of freedom with respect to each other thanks to the elastic fixings 6, so that the cable tray follows the deformation of the structure of the aircraft, especially during flight.
  • FIGs 2 and 3 illustrate in perspective one of the cable retention devices 4 used in the cable tray of Figure 1.
  • the two cable retention devices 4 are identical here.
  • Each cable retention device 4 comprises a base 7 which is provided with a foot 8 for its attachment to the profile 1.
  • Leg 8 includes:
  • the lower 18 and upper 20 stop surfaces are parallel.
  • the cable retention device 4 further comprises two flexible wings 10 which are adapted to bend when the device 4 is mounted and brought into contact with the electrical harnesses to be maintained.
  • Each wing 10 comprises at its free end a pad 11 intended to come into contact with the electrical harness, without damaging the latter.
  • the shoe 11 has a rounded profile, and can optionally be made of a flexible material.
  • Each wing 10 has here, at rest, the shape of a flat sheet of material.
  • FIG. 4 represents the cable retention device 4 seen from the front and shows that this flat sheet of material has a thickness which decreases from its end located on the side of the base 7, in the direction of its end located on the side of the pad 11
  • the material of the wings 10 is chosen to be flexible, and this reduction in thickness provides for each wing a variable flexibility, which is all the greater as one approaches the free end of the wing 10. Consequently, the portions of the wing 10 which are in contact with the harness to be maintained (the portions close to the skate 11) are more flexible than the portions of the wing which allow the wing to dive into the channel 2, 3 cable guide.
  • Figure 5 is an enlarged view of Figure 1, showing one of the cable retention devices 4.
  • the wings 10 are dimensioned so that their shoe 11 comes close to the bottom wall 30 of the channel cable.
  • the channel 2, 3 contains a harness to be maintained
  • the wings of the device 4 bend over their entire length according to a variable radius of curvature, which decreases as it approaches the harness.
  • the harness is thus maintained with firmness (bending with a large radius of curvature), but with a certain flexibility avoiding marking it or damaging it (bending with a small radius of curvature).
  • the wings 10 are each attached to the base 7 by an elastic clip 12.
  • the elastic clip 12 is constituted in this example by a corrugated tab comprising a portion whose profile is U-shaped, that is to say say looping at 180° (see figure 3).
  • One of the branches of the U is attached to the wing 10 and the other branch of the U is attached to the base 7.
  • the force exerted by the pad 11 on the harnesses to be maintained is furthermore impacted by the possible movement between each wing 10 and the base 7, taking into account the degree of freedom allowed by the approximation of the branches of the U in the elastic fastener 12.
  • the holding force of the harness in the cable tray is obtained without any concentration of stress within the retention device 4, which is an essential guarantee of reliability for an aeronautical application of a cable tray that has to deform to follow deformation of the aircraft structure.
  • the section 1 has side walls 27, 28 which form its side edges.
  • the side walls are the only walls of the profile.
  • the profile 1 defines two channels 2, 3 and its side walls 27, 28 therefore each bound one of the channels 2, 3, and the profile further comprises an internal wall 29 which separates the two channels 2, 3.
  • These side walls 27, 28 have an internal face (facing the inside of the profile 1, that is to say towards the channels 2, 3), and an external face (facing outwards).
  • the profile 1 has a side flange 24 projecting from the outer face of each of the side walls 27, 28.
  • the side flanges 24 have a through fixing hole 23, which in this example has a rectangular section.
  • the side flanges 24 define an upper support surface 25 (located on top of the side flange 24, with reference to the orientation of the figures) which is juxtaposed with the through fixing hole 23 and a lower support surface 26 (located on the underside of the side flange 24, with reference to the orientation of the figures) which is also juxtaposed with each through fixing hole 23.
  • the cable retention devices 4 are fixed to the section 1 by inserting the foot 8 into the through fixing hole 23.
  • the pins 9 are sized to be adjusted to the size of the through fixing hole 23. These pins 9 are therefore in contact with the edges of the orifice 23.
  • the lower elastic tabs 16 are dimensioned so that the teeth 17 are clipped onto the lateral flange 24, at the edge of the orifice 23. The surfaces of lower stops 18 then come against the surface lower support 26 of the side flange 24.
  • the teeth 17 have for this purpose a profile allowing clipping (a triangular profile in this example).
  • Figure 6 is a top view of a cable retention device 4. This view shows the arrangement of the wings 10 with respect to the foot 8. The foot 8 is indeed separated from the wings 10 by a distance D illustrated in Figure 6.
  • This distance D forms a groove 13 between the wings 10 and the foot 8.
  • the groove 13 is also partially visible in Figures 2 and 3.
  • This groove 13 is intended to enclose the side wall 27, 28 bordering the channel 2, 3 for which the device 4 provides support.
  • the wings 10 are preferably wide, that is to say they have a large width L1, given their length L2.
  • the width L1 is greater than half the length L2.
  • Figure 7 is a cross-sectional view of the cable tray and illustrates the mounting of a cable retention device 4.
  • Each of the side walls 27, 28 extends parallel to a lateral retention plane.
  • This lateral retention plane is here defined as a plane which is perpendicular to the bottom wall 30 on which the wiring runs, and which extends along the longitudinal axis of the profile 1, that is to say in the direction of the wiring.
  • Each lateral flange 24 is formed of a section which has on the top the upper bearing surface 25 and which has a curved end forming the lower bearing surface 26.
  • FIG. 7 shows the bearing of the upper stopping surfaces 20 of the lugs 19 on the upper bearing surface 25, as well as the bearing of the lower stop surfaces 18 of the teeth 17 on the lower bearing surfaces 26.
  • the gap between the lower stop surfaces 18 and the upper stop surfaces 20 is sized to grip the side flange 24, in view of the gap between the bearing surfaces 25, 26.
  • the distance between the surfaces d stop 18, 20 is preferably slightly less than the distance between the bearing surfaces 25, 26, so that the clipping of the foot 8 in the fixing hole 23 causes an elastic deformation of the legs 16, 19, for a better hold of the base 7 on the side edge 24.
  • the legs upper elastics 19 are then elastically deformed in bending by the support of the upper stop surfaces 20 on the upper bearing surface 25 of the side flange 24.
  • the lower elastic tabs 16 are for their part elastically deformed in traction by the support lower stop surfaces 18 on the lower bearing surface 26 of the side flange 24.
  • This holding by the stop surfaces 18, 20 is associated with the holding provided by the pins 9 which are fitted in the through fixing hole 23.
  • the groove 13 encloses the side wall 27 and ensures optimal positioning and support, together with the fixing of the foot 8 in the through fixing hole 23, to the base 7 above the channel 2 of cable guide.
  • the pads 11 come into contact with the harnesses arranged in the channels 2, 3, then the wings 10 flex while the elastic attachment 12 deforms elastically, and this as the foot 8 is engaged in the through fixing hole 23.
  • the assembly of the device 4 is completed and the latter therefore ensures the maintenance of the harness 4 with the necessary effort.
  • the cable retention devices 4 may comprise a single flexible wing 10 instead of two.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

Disclosed is an aircraft cable tray that comprises: – a profile section (1) defining at least one cable guiding channel (2, 3); – a lateral ledge (24) comprising: a fastening through-hole (23); an upper bearing surface (25) juxtaposed with the fastening through-hole (23); a lower bearing surface (26) juxtaposed with the fastening through-hole (23); – a cable retaining device (4) comprising: a base (7) provided with a leg (8) inserted into the fastening through-hole (23) and having abutment surfaces (18, 20) placed against the lower bearing surface (26) and against the upper bearing surface (25); a flexible flange (10) that is provided at one of the ends thereof with a pad (11) placed in the cable guide channel (2, 3) and is attached to the base (7) by an elastic clip (12).

Description

DESCRIPTION DESCRIPTION
CHEMIN DE CABLE D’AERONEF AVEC AILE FLEXIBLE AIRCRAFT CABLE TRAY WITH FLEXIBLE WING
DOMAINE TECHNIQUE TECHNICAL AREA
L’invention concerne le domaine de l’aéronautique et vise l’agencement des chemins de câble au sein des architectures électriques d’aéronef. The invention relates to the field of aeronautics and is aimed at the arrangement of cable paths within the electrical architectures of aircraft.
Les chemins de câble 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 raceways define the routes of electrical wiring harnesses 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 câble 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 câble 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 inserts disposés dans chaque canal de guidage de câble. Ces inserts comportent divers éléments tels que des colonnes crantées disposées sur les parois internes du canal de guidage et permettant de presser un élément contre les harnais afin de les maintenir en place. Ces inserts sont généralement coûteux et leur mise en place allonge le temps de montage de l’aéronef (de nombreux inserts sont prévus pour un chemin de câble, et un aéronef comporte de nombreux chemins de câble). Leur encombrement nécessite de plus un dimensionnement en conséquence des chemins de câble, avec des canaux de guidage de câble plus larges que le strict nécessaire imposé par l’encombrement du harnais à maintenir, et donc un surcoût et un surpoids en conséquence. De tels chemins de câble sont décrits, notamment, dans le JP 2014 093817 A et dans le US 2013/075153A1. Within each profile, the known cable paths comprise inserts arranged in each cable guide channel. These inserts comprise various elements such as notched columns arranged on the internal walls of the guide channel and making it possible to press an element against the harnesses in order to hold them in place. These inserts are generally expensive and their installation lengthens the assembly time of the aircraft (many inserts are provided for a cable raceway, and an aircraft comprises numerous cable raceways). Their size also requires a corresponding dimensioning of the cable paths, with cable guide channels wider than strictly necessary imposed by the size of the harness to be maintained, and therefore an additional cost and excess weight as a result. Such cable paths are described, in particular, in JP 2014 093817 A and in US 2013/075153A1.
EXPOSÉ DE L’INVENTION DISCLOSURE OF THE INVENTION
L’invention a pour but d’améliorer les agencements de chemins de câble au sein des aéronefs de l’art antérieur. The object of the invention is to improve the layouts of cable paths within aircraft of the prior art.
À cet effet, l’invention vise un chemin de câble d’aéronef, comportant un profilé qui comprend deux parois latérales s’étendant parallèlement à un plan latéral de rétention, chaque paroi latérale présentant une face externe et une face interne, ce profilé délimitant au moins un canal de guidage de câble s’étendant parallèlement au plan latéral de rétention, ce chemin de câble d’aéronef comportant : To this end, the invention relates to an aircraft cable tray, comprising a profile which comprises two side walls extending parallel to a lateral retention plane, each side wall having an outer face and an inner face, this profile delimiting at least one cable guide channel extending parallel to the lateral retention plane, this aircraft cable tray comprising:
- un rebord latéral saillant de la face externe d’une paroi latérale du profilé, ce rebord latéral comportant : un orifice de fixation traversant ; une surface d’appui supérieure juxtaposée à l’orifice de fixation traversant ; une surface d’appui inférieure juxtaposée à l’orifice de fixation traversant ; - a lateral flange projecting from the outer face of a side wall of the profile, this lateral flange comprising: a through fixing hole; an upper support surface juxtaposed with the through fixing hole; a lower support surface juxtaposed with the through fixing hole;
- un dispositif de rétention de câble comportant : un socle muni d’un pied inséré dans l’orifice de fixation traversant et comportant des surfaces d’arrêt disposées contre la surface d’appui inférieure et contre la surface d’appui supérieure ; une aile flexible qui est munie à l’une de ses extrémités d’un patin disposé dans le canal de guidage de câble, et qui est rattachée au socle par une attache élastique. - a cable retention device comprising: a base fitted with a foot inserted into the through fixing hole and comprising stop surfaces arranged against the lower bearing surface and against the upper bearing surface; a flexible wing which is provided at one of its ends with a pad arranged in the cable guide channel, and which is attached to the base by an elastic clip.
Dans cet énoncé, la présence d’un rebord latéral inclus la possibilité que le profilé comporte plusieurs rebords latéraux, comme dans l’exemple de la description détaillée. De même, la présence d’un orifice de fixation traversant et d’un dispositif de rétention de câble inclus la possibilité que le chemin de câble comporte plusieurs orifices de fixation traversant et plusieurs dispositifs de rétention de câble, comme dans l’exemple de la description détaillée. De même, la présence d’une aile flexible inclus la possibilité que le dispositif de rétention de câble comporte plusieurs ailes flexibles, comme dans l’exemple de la description détaillée. In this statement, the presence of a side flange includes the possibility that the profile has several side flanges, as in the example of the detailed description. Similarly, the presence of a through-mounting hole and a cable retention device includes the possibility that the cable tray has several through-mounting holes and several cable retention devices, as in the example of the detailed description. Likewise, the presence of a flexible wing includes the possibility that the cable retention device comprises several flexible wings, as in the example of the detailed description.
Un tel chemin de câble d’aéronef ne comporte aucun élément encombrant le canal de guidage de câble recevant le dispositif de rétention de câble. Le maintien du harnais électrique d’un canal de guidage de câble est ainsi assuré sans interférer avec le contenu du chemin de câble. Le chemin de câble peut ainsi être dimensionné au plus juste. Notamment, la largeur des éléments du profilé (généralement métallique) formant les canaux de guidage de câble peut être réduite, ce qui entraîne un gain de matière et de poids. Such an aircraft cable tray does not include any element encumbering the cable guide channel receiving the cable retention device. Maintaining the electrical harness of a cable guide channel is thus ensured without interfering with the content of the cable tray. The cable tray can thus be sized as accurately as possible. In particular, the width of the elements of the profile (generally metallic) forming the cable guide channels can be reduced, resulting in a gain in material and weight.
Dans chaque canal de guidage de câble, le ou les harnais électriques ne sont maintenus que par une aile élastique agissant directement sur ces harnais sans nécessiter de maintien depuis l’intérieur du profilé. Cette aile élastique est maintenue par le dispositif de rétention de câble dont la seule fixation est située sur une face externe du profilé. In each cable guide channel, the electrical harness(es) are only held by an elastic wing acting directly on these harnesses without requiring holding from inside the section. This elastic wing is held by the cable retention device, the only fixing of which is located on an external face of the profile.
L’invention permet, en plus des gains de masse, de matière et de coût, des gains de productivité. Le temps de montage du chemin de câble d’aéronef est en effet réduit grâce à une mise en place rapide des dispositifs de rétention, par exemple, par simple clipsage. The invention allows, in addition to savings in mass, material and cost, productivity gains. The assembly time of the aircraft cable tray is in fact reduced thanks to rapid installation of the retention devices, for example, by simple clipping.
Des avantages en matière de sûreté de montage sont aussi apportés par l’invention : le montage et le serrage des dispositifs de maintien se fait sans erreur possible par la coopération du pied du socle avec l’orifice de fixation traversant. Advantages in terms of mounting safety are also provided by the invention: the mounting and tightening of the holding devices is done without possible error by the cooperation of the foot of the base with the through fixing hole.
Le dispositif de rétention de câble ne nécessite aucune liaison mécanique entre les pièces, et est de préférence réalisé d’une seule pièce. Malgré cette construction, le dispositif de rétention de câble assure un maintien optimal des harnais électriques, alliant fermeté et souplesse, sans aucune concentration de contrainte au sein de la pièce. Le dispositif de rétention de câble bénéficie ainsi d’une meilleure sûreté de fonctionnement et d’une durée de vie allongée. The cable retention device does not require any mechanical connection between the parts, and is preferably made in one piece. Despite this construction, the cable retention device provides optimal support for the electrical harnesses, combining firmness and flexibility, without any concentration of stress within the part. The cable retention device thus benefits from better operating safety and a longer service life.
Le montage du dispositif de rétention de câble se fait sans outils et sans recourir à une opération de serrage, ce qui garantit sûreté et répétabilité dans le serrage des harnais. The assembly of the cable retention device is done without tools and without resorting to a tightening operation, which guarantees safety and repeatability in the tightening of the harnesses.
Le chemin de câble d’aéronef selon l’invention peut comporter les caractéristiques additionnelles suivantes, seules ou en combinaison : The aircraft cable tray according to the invention may comprise the following additional characteristics, alone or in combination:
- le socle comporte des pattes élastiques supérieures définissant des surfaces d’arrêt supérieures disposées contre la surface d’appui supérieure du rebord latéral ; - les pattes élastiques supérieures sont élastiquement déformées en flexion par l’appui des surfaces d’arrêt supérieures sur la surface d’appui supérieure du rebord latéral ; - The base has upper elastic tabs defining upper stop surfaces arranged against the upper bearing surface of the side rim; - the upper elastic tabs are elastically deformed in bending by the support of the upper stop surfaces on the upper bearing surface of the side rim;
- le socle comporte des pattes élastiques inférieures définissant des surfaces d’arrêt inférieures disposées contre la surface d’appui inférieure du rebord latéral ; - the base has lower elastic tabs defining lower stop surfaces arranged against the lower bearing surface of the side rim;
- les pattes élastiques inférieures comportent une dent permettant un clipsage des pattes élastiques inférieures à travers l’orifice de fixation traversant ; - the lower elastic tabs have a tooth allowing the lower elastic tabs to be clipped through the through fixing hole;
- les pattes élastiques inférieures sont élastiquement déformées en traction par l’appui des surfaces d’arrêt inférieures sur la surface d’appui inférieure du rebord latéral ; - the lower elastic tabs are elastically deformed in traction by the support of the lower stop surfaces on the lower support surface of the side edge;
- le pied comporte un pion ajusté dans l’orifice de fixation traversant ; - the foot has a pin fitted in the through fixing hole;
- l’aile flexible présente une épaisseur diminuant du socle vers le patin ; - the flexible wing has a thickness decreasing from the base towards the base;
- l’attache élastique est constituée d’une languette ondulée ; - the elastic fastener consists of a wavy tongue;
- l’attache élastique comporte une portion dont le profil est en forme de U. - the elastic clip has a portion whose profile is U-shaped.
PRÉSENTATION DES FIGURES PRESENTATION OF FIGURES
D’autres caractéristiques et avantages de l’invention ressortiront de la description non limitative qui suit, en référence aux dessins annexés dans lesquels : 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 câble selon l’invention ;- Figure 1 shows in perspective a cable tray according to the invention;
- la figure 2 et la figure 3 représentent en perspective un dispositif de rétention de câble du chemin de câble de la figure 1 ; - Figure 2 and Figure 3 show in perspective a cable retention device of the cable tray of Figure 1;
- la figure 4 est une vue de face du dispositif de rétention de câble ; - Figure 4 is a front view of the cable retention device;
- la figure 5 illustre un dispositif de rétention de câble monté sur le chemin de câble ; - Figure 5 illustrates a cable retention device mounted on the cable tray;
- la figure 6 est une vue de dessus du dispositif de rétention de câble ; - Figure 6 is a top view of the cable retention device;
- la figure 7 est une vue en coupe du chemin de câble de la figure 1. - Figure 7 is a sectional view of the cable tray of Figure 1.
DESCRIPTION DÉTAILLÉE La figure 1 illustre une portion de chemin de câble d’aéronef qui est ici constituée d’un profilé 1 . Le présent exemple se réfère à un chemin de câble double, le profilé 1 délimitant deux canaux de guidages de câble 2, 3 parallèles. DETAILED DESCRIPTION FIG. 1 illustrates a portion of an aircraft cable tray which here consists of a profile 1. This example refers to a double cable tray, the profile 1 delimiting two parallel cable guide channels 2, 3.
Le profilé 1 est réalisé de manière classique dans ce domaine, par exemple par pliage d’une tôle métallique. Les canaux de guidage de câble 2, 3 reçoivent chacun un ou plusieurs harnais électriques ou autres éléments de câblage. Le contenu des canaux 2, 3 est maintenu grâce à des dispositifs de rétention de câble 4 qui sont dans cet exemple disposés à proximité de chaque extrémité des canaux 2, 3. The profile 1 is produced in a conventional manner in this field, for example by bending a metal sheet. The cable guide channels 2, 3 each receive one or more electrical harnesses or other wiring elements. The content of channels 2, 3 is maintained thanks to cable retention devices 4 which are in this example arranged near each end of channels 2, 3.
Les deux extrémités du profilé 1 sont munies de fixations élastiques 6 permettant de raccorder chaque extrémité du profilé 1 à un autre profilé identique pour constituer le chemin de câble adapté à la longueur souhaitée. Ce chemin de câble complet est ainsi monté sur la structure de l’aéronef de sorte que les différents profilés 1 présentent un degré de liberté les uns par rapport aux autres grâce aux fixations élastiques 6, pour que le chemin de câble suive la déformation de la structure de l’aéronef, notamment durant le vol. The two ends of profile 1 are provided with elastic fasteners 6 allowing each end of profile 1 to be connected to another identical profile to form the cable tray adapted to the desired length. This complete cable tray is thus mounted on the structure of the aircraft so that the different sections 1 have a degree of freedom with respect to each other thanks to the elastic fixings 6, so that the cable tray follows the deformation of the structure of the aircraft, especially during flight.
Les figures 2 et 3 illustrent en perspective l’un des dispositifs 4 de rétention de câble utilisé dans le chemin de câble de la figure 1. Les deux dispositifs 4 de rétention de câble sont ici identiques. Figures 2 and 3 illustrate in perspective one of the cable retention devices 4 used in the cable tray of Figure 1. The two cable retention devices 4 are identical here.
Chaque dispositif 4 de rétention de câble comporte un socle 7 qui est muni d’un pied 8 pour sa fixation au profilé 1. Each cable retention device 4 comprises a base 7 which is provided with a foot 8 for its attachment to the profile 1.
Le pied 8 comporte : Leg 8 includes:
- deux pattes élastiques inférieures 16 munies de dents 17 qui définissent des surfaces d’arrêt inférieures 18 ; - two lower elastic tabs 16 provided with teeth 17 which define lower stop surfaces 18;
- deux pattes élastiques supérieures 19 définissant des surfaces d’arrêt supérieures 20 ; - two upper elastic tabs 19 defining upper stop surfaces 20;
- deux pions 9 disposés de part et d’autre des pattes élastiques inférieures 16. - two pins 9 arranged on either side of the lower elastic tabs 16.
Les surfaces d’arrêt inférieures 18 et supérieures 20 sont parallèles. The lower 18 and upper 20 stop surfaces are parallel.
Le dispositif 4 de rétention de câble comporte de plus deux ailes flexibles 10 qui sont adaptée à fléchir lorsque le dispositif 4 est monté et mis au contact avec les harnais électriques à maintenir. Chaque aile 10 comporte à son extrémité libre un patin 11 destiné à venir en contact avec le harnais électrique, sans endommager ce dernier. Le patin 11 présente un profil arrondi, et peut optionnellement être constitué d’un matériau souple. The cable retention device 4 further comprises two flexible wings 10 which are adapted to bend when the device 4 is mounted and brought into contact with the electrical harnesses to be maintained. Each wing 10 comprises at its free end a pad 11 intended to come into contact with the electrical harness, without damaging the latter. The shoe 11 has a rounded profile, and can optionally be made of a flexible material.
Chaque aile 10 présente ici, au repos, la forme d’une feuille plane de matériau. La figure 4 représente le dispositif 4 de rétention de câble vu de face et montre que cette feuille plane de matériau présente une épaisseur qui va en diminuant depuis son extrémité située du côté du socle 7, en direction de son extrémité située du côté du patin 11. Le matériau des ailes 10 est choisi pour être flexible, et cette diminution d’épaisseur procure pour chaque aile une flexibilité variable, qui est d’autant plus importante que l’on se rapproche de l’extrémité libre de l’aile 10. En conséquence, les portions de l’aile 10 qui sont en contact avec le harnais à maintenir (les portions proches du patin 11) sont plus flexibles que les portions de l’aile qui permettent à l’aile de plonger dans le canal 2,3 de guidage de câble. Each wing 10 has here, at rest, the shape of a flat sheet of material. FIG. 4 represents the cable retention device 4 seen from the front and shows that this flat sheet of material has a thickness which decreases from its end located on the side of the base 7, in the direction of its end located on the side of the pad 11 The material of the wings 10 is chosen to be flexible, and this reduction in thickness provides for each wing a variable flexibility, which is all the greater as one approaches the free end of the wing 10. Consequently, the portions of the wing 10 which are in contact with the harness to be maintained (the portions close to the skate 11) are more flexible than the portions of the wing which allow the wing to dive into the channel 2, 3 cable guide.
La figure 5 est une vue agrandie de la figure 1 , montrant l’un des dispositifs 4 de rétention de câble. Figure 5 is an enlarged view of Figure 1, showing one of the cable retention devices 4.
Lorsque le dispositif 4 de rétention de câble est monté dans le chemin de câble, comme illustré à la figure 5, les ailes 10 sont dimensionnées pour que leur patin 11 vienne à proximité de la paroi de fond 30 du canal 2, 3 de guidage de câble. Ainsi, lorsque le canal 2, 3 contient un harnais à maintenir, les ailes du dispositif 4 fléchissent sur toute leur longueur selon un rayon de courbure variable, qui diminue en se rapprochant du harnais. Le harnais est ainsi maintenu avec fermeté (fléchissement avec grand rayon de courbure), mais avec une certaine souplesse évitant de le marquer ou de l’endommager (fléchissement avec un petit rayon de courbure). When the cable retention device 4 is mounted in the cable tray, as illustrated in FIG. 5, the wings 10 are dimensioned so that their shoe 11 comes close to the bottom wall 30 of the channel cable. Thus, when the channel 2, 3 contains a harness to be maintained, the wings of the device 4 bend over their entire length according to a variable radius of curvature, which decreases as it approaches the harness. The harness is thus maintained with firmness (bending with a large radius of curvature), but with a certain flexibility avoiding marking it or damaging it (bending with a small radius of curvature).
Par ailleurs, les ailes 10 sont rattachées chacune au socle 7 par une attache élastique 12. L’attache élastique 12 est constituée dans cet exemple par une languette ondulée comportant une portion dont le profil est en forme de U, c’est-à-dire bouclant à 180° (voir figure 3). L’une des branches du U est rattachée à l’aile 10 et l’autre branche du U est rattachée au socle 7. Furthermore, the wings 10 are each attached to the base 7 by an elastic clip 12. The elastic clip 12 is constituted in this example by a corrugated tab comprising a portion whose profile is U-shaped, that is to say say looping at 180° (see figure 3). One of the branches of the U is attached to the wing 10 and the other branch of the U is attached to the base 7.
En dehors de la flexibilité des ailes 10, la force exercée par le patin 11 sur les harnais à maintenir est de plus impactée par le mouvement possible entre chaque aile 10 et le socle 7, compte tenu du degré de liberté permis par le rapprochement des branches du U dans l’attache élastique 12. Apart from the flexibility of the wings 10, the force exerted by the pad 11 on the harnesses to be maintained is furthermore impacted by the possible movement between each wing 10 and the base 7, taking into account the degree of freedom allowed by the approximation of the branches of the U in the elastic fastener 12.
Les propriétés élastiques de l’attache 12, qui permettent le positionnement dans son ensemble de l’aile 10, se combinent à la flexibilité de l’aile 10 elle-même, qui module la force que le patin 11 applique sur le harnais et lui permet un certain degré de liberté. La force de maintien du harnais dans le chemin de câble est obtenue sans aucune concentration de contrainte au sein du dispositif 4 de rétention, ce qui est un gage de fiabilité primordial pour une application aéronautique d’un chemin de câble amené à se déformer pour suivre la déformation de la structure de l’aéronef. The elastic properties of the attachment 12, which allow the positioning of the wing 10 as a whole, combine with the flexibility of the wing 10 itself, which modulates the force that the slider 11 applies to the harness and allows a certain degree of freedom. The holding force of the harness in the cable tray is obtained without any concentration of stress within the retention device 4, which is an essential guarantee of reliability for an aeronautical application of a cable tray that has to deform to follow deformation of the aircraft structure.
Le profilé 1 comporte des parois latérales 27, 28 qui forment ses bords latéraux. Dans le cas d’un profilé à un seul canal de guidage de câble, les parois latérales sont les seules parois du profilé. Dans le cas du présent exemple, le profilé 1 définit deux canaux 2, 3 et ses parois latérales 27, 28 bornent donc chacune l’un des canaux 2, 3, et le profilé comporte de plus une paroi interne 29 qui sépare les deux canaux 2, 3. The section 1 has side walls 27, 28 which form its side edges. In the case of a profile with a single cable guide channel, the side walls are the only walls of the profile. In the case of the present example, the profile 1 defines two channels 2, 3 and its side walls 27, 28 therefore each bound one of the channels 2, 3, and the profile further comprises an internal wall 29 which separates the two channels 2, 3.
Ces parois latérales 27, 28 comportent une face interne (tournée vers l’intérieur du profilé 1 , c’est-à-dire vers les canaux 2, 3), et une face externe (tournée vers l’extérieur). These side walls 27, 28 have an internal face (facing the inside of the profile 1, that is to say towards the channels 2, 3), and an external face (facing outwards).
Le profilé 1 comporte un rebord latéral 24 saillant de la face externe de chacune des parois latérales 27, 28. Pour chaque dispositif 4, les rebords latéraux 24 comportent un orifice de fixation traversant 23, qui est dans cet exemple à section rectangulaire. Les rebords latéraux 24 définissent une surface d’appui supérieure 25 (située sur le dessus du rebord latéral 24, en référence à l’orientation des figures) qui est juxtaposée à l’orifice de fixation traversant 23 et une surface d’appui inférieure 26 (située sur le dessous du rebord latéral 24, en référence à l’orientation des figures) qui est également juxtaposée à chaque orifice de fixation traversant 23. The profile 1 has a side flange 24 projecting from the outer face of each of the side walls 27, 28. For each device 4, the side flanges 24 have a through fixing hole 23, which in this example has a rectangular section. The side flanges 24 define an upper support surface 25 (located on top of the side flange 24, with reference to the orientation of the figures) which is juxtaposed with the through fixing hole 23 and a lower support surface 26 (located on the underside of the side flange 24, with reference to the orientation of the figures) which is also juxtaposed with each through fixing hole 23.
Les dispositifs 4 de rétention de câble sont fixés au profilé 1 par l’insertion du pied 8 dans l’orifice de fixation traversant 23. Les pions 9 sont dimensionnés pour être ajustés à la taille de l’orifice de fixation traversant 23. Ces pions 9 sont donc en contact avec les bords de l’orifice 23. Les pattes élastiques inférieures 16 sont quant à elles dimensionnées pour que les dents 17 viennent se clipser sur le rebord latéral 24, au bord de l’orifice 23. Les surfaces d’arrêt inférieures 18 viennent alors contre la surface d’appui inférieure 26 du rebord latéral 24. Les dents 17 présentent à cet effet un profil permettant le clipsage (un profil triangulaire dans cet exemple). The cable retention devices 4 are fixed to the section 1 by inserting the foot 8 into the through fixing hole 23. The pins 9 are sized to be adjusted to the size of the through fixing hole 23. These pins 9 are therefore in contact with the edges of the orifice 23. The lower elastic tabs 16 are dimensioned so that the teeth 17 are clipped onto the lateral flange 24, at the edge of the orifice 23. The surfaces of lower stops 18 then come against the surface lower support 26 of the side flange 24. The teeth 17 have for this purpose a profile allowing clipping (a triangular profile in this example).
La figue 6 est une vue de dessus d’un dispositif 4 de rétention de câble. Cette vue rend compte de l’agencement des ailes 10 par rapport au pied 8. Le pied 8 est en effet écarté des ailes 10 d’une distance D illustrée sur la figure 6. Figure 6 is a top view of a cable retention device 4. This view shows the arrangement of the wings 10 with respect to the foot 8. The foot 8 is indeed separated from the wings 10 by a distance D illustrated in Figure 6.
Cette distance D forme une rainure 13 entre les ailes 10 et le pied 8. La rainure 13 est également partiellement visible aux figures 2 et 3. Cette rainure 13 est destinée à enserrer la paroi latérale 27, 28 bordant le canal 2, 3 pour lequel le dispositif 4 assure un maintien. This distance D forms a groove 13 between the wings 10 and the foot 8. The groove 13 is also partially visible in Figures 2 and 3. This groove 13 is intended to enclose the side wall 27, 28 bordering the channel 2, 3 for which the device 4 provides support.
Par ailleurs, les ailes 10 sont de préférence larges, c’est-à-dire qu’elles présentent une largeur L1 importante, au vu de leur longueur L2. De préférence, la largeur L1 est supérieure à la moitié de la longueur L2. Furthermore, the wings 10 are preferably wide, that is to say they have a large width L1, given their length L2. Preferably, the width L1 is greater than half the length L2.
La figure 7 est une vue en coupe transversale du chemin de câble et illustre le montage d’un dispositif 4 de rétention de câble. Figure 7 is a cross-sectional view of the cable tray and illustrates the mounting of a cable retention device 4.
Chacune des parois latérales 27, 28 s’étend parallèlement à un plan de rétention latéral. Ce plan de rétention latéral est ici défini comme un plan qui est perpendiculaire à la paroi de fond 30 sur laquelle chemine le câblage, et qui s’étend le long de l’axe longitudinal du profilé 1 , c’est-à-dire dans le sens de parcours du câblage. Each of the side walls 27, 28 extends parallel to a lateral retention plane. This lateral retention plane is here defined as a plane which is perpendicular to the bottom wall 30 on which the wiring runs, and which extends along the longitudinal axis of the profile 1, that is to say in the direction of the wiring.
Chaque rebord latéral 24 est formé d’un profilé qui présente sur le dessus la surface d’appui supérieure 25 et qui présente une extrémité recourbée formant la surface d’appui inférieure 26. La figure 7 montre l’appui des surfaces d’arrêt supérieures 20 des pattes 19 sur la surface d’appui supérieure 25, ainsi que l’appui des surfaces d’arrêt inférieures 18 des dents 17 sur les surfaces d’appui inférieures 26. Each lateral flange 24 is formed of a section which has on the top the upper bearing surface 25 and which has a curved end forming the lower bearing surface 26. FIG. 7 shows the bearing of the upper stopping surfaces 20 of the lugs 19 on the upper bearing surface 25, as well as the bearing of the lower stop surfaces 18 of the teeth 17 on the lower bearing surfaces 26.
L’écart entre les surfaces d’arrêt inférieures 18 et les surfaces d’arrêt supérieures 20 est dimensionné pour enserrer le rebord latéral 24, au vu de l’écartement entre les surfaces d’appui 25, 26. La distance entre les surfaces d’arrêt 18, 20 est de préférence légèrement inférieure à la distance entre les surfaces d’appui 25, 26, de sorte que le clipsage du pied 8 dans l’orifice de fixation 23 entraîne une déformation élastique des pattes 16, 19, pour une meilleure tenue du socle 7 sur le rebord latéral 24. Les pattes élastiques supérieures 19 sont alors élastiquement déformées en flexion par l’appui des surfaces d’arrêt supérieures 20 sur la surface d’appui supérieure 25 du rebord latéral 24. Les pattes élastiques inférieures 16 sont quant à elles élastiquement déformées en traction par l’appui des surfaces d’arrêt inférieures 18 sur la surface d’appui inférieure 26 du rebord latéral 24. The gap between the lower stop surfaces 18 and the upper stop surfaces 20 is sized to grip the side flange 24, in view of the gap between the bearing surfaces 25, 26. The distance between the surfaces d stop 18, 20 is preferably slightly less than the distance between the bearing surfaces 25, 26, so that the clipping of the foot 8 in the fixing hole 23 causes an elastic deformation of the legs 16, 19, for a better hold of the base 7 on the side edge 24. The legs upper elastics 19 are then elastically deformed in bending by the support of the upper stop surfaces 20 on the upper bearing surface 25 of the side flange 24. The lower elastic tabs 16 are for their part elastically deformed in traction by the support lower stop surfaces 18 on the lower bearing surface 26 of the side flange 24.
Ce maintien par les surfaces d’arrêt 18, 20 est associé au maintien procuré par les pions 9 qui sont ajustés dans l’orifice de fixation traversant 23. This holding by the stop surfaces 18, 20 is associated with the holding provided by the pins 9 which are fitted in the through fixing hole 23.
Comme illustré à la figure 7, la rainure 13 enserre la paroi latérale 27 et assure un positionnement et un maintien optimal, conjointement à la fixation du pied 8 dans l’orifice de fixation traversant 23, au socle 7 au-dessus du canal 2 de guidage de câble. As illustrated in Figure 7, the groove 13 encloses the side wall 27 and ensures optimal positioning and support, together with the fixing of the foot 8 in the through fixing hole 23, to the base 7 above the channel 2 of cable guide.
Le procédé de mise en place du chemin de câble d’aéronef, lors du montage de l’aéronef, est considérablement simplifié, sécurisé, et accéléré. Il comporte simplement les étapes suivantes : The installation process of the aircraft cable tray, during the assembly of the aircraft, is considerably simplified, secured, and accelerated. It simply involves the following steps:
- la fixation des différents profilés 1 bout à bout sur la structure de l’aéronef, et la mise en place des fixations élastiques 6, de manière à constituer le chemin de câble ; - the fixing of the various sections 1 end to end on the structure of the aircraft, and the installation of the elastic fixings 6, so as to constitute the cable path;
- la pose des harnais électriques dans les canaux 2, 3 de guidage de câble ; - the laying of the electrical harnesses in the channels 2, 3 for guiding the cable;
- le clipsage des dispositifs 4 de rétention de câble dans leur orifice de fixation traversant 23. - the clipping of the cable retention devices 4 in their through fixing hole 23.
Durant le clipsage des dispositifs 4, les patins 11 viennent au contact des harnais disposés dans les canaux 2, 3, puis les ailes 10 fléchissent tandis que l’attache élastique 12 se déforme élastiquement, et ce au fur et à mesure que le pied 8 est engagé dans l’orifice de fixation traversant 23. Dès le clipsage des dents 17, le montage du dispositif 4 est terminé et ce dernier assure dès lors le maintien du harnais 4 avec l’effort nécessaire. During the clipping of the devices 4, the pads 11 come into contact with the harnesses arranged in the channels 2, 3, then the wings 10 flex while the elastic attachment 12 deforms elastically, and this as the foot 8 is engaged in the through fixing hole 23. As soon as the teeth 17 are clipped, the assembly of the device 4 is completed and the latter therefore ensures the maintenance of the harness 4 with the necessary effort.
Des variantes de réalisation peuvent être prévues. Notamment, les dispositifs 4 de rétention de câble peuvent comporter une seule aile flexible 10 au lieu de deux. Alternative embodiments may be provided. In particular, the cable retention devices 4 may comprise a single flexible wing 10 instead of two.

Claims

REVENDICATIONS
1. Chemin de câble d’aéronef, comportant un profilé (1) qui comprend deux parois latérales (27,28) s’étendant parallèlement à un plan latéral de rétention, chaque paroi latérale (27,28) présentant une face externe et une face interne, ce profilé (1) délimitant au moins un canal (2,3) de guidage de câble s’étendant parallèlement au plan latéral de rétention, ce chemin de câble d’aéronef comportant : 1. Aircraft cable tray, comprising a section (1) which comprises two side walls (27,28) extending parallel to a lateral retention plane, each side wall (27,28) having an outer face and a internal face, this profile (1) delimiting at least one cable guide channel (2,3) extending parallel to the lateral retention plane, this aircraft cable tray comprising:
- un rebord latéral (24) saillant de la face externe d’une paroi latérale (24,28) du profilé (1 ), ce rebord latéral (24) comportant : un orifice de fixation traversant (23) ; une surface d’appui supérieure (25) juxtaposée à l’orifice de fixation traversant (23) ; une surface d’appui inférieure (26) juxtaposée à l’orifice de fixation traversant (23) ; - a side flange (24) projecting from the outer face of a side wall (24,28) of the profile (1), this side flange (24) comprising: a through fixing hole (23); an upper bearing surface (25) juxtaposed to the through fixing hole (23); a lower bearing surface (26) juxtaposed to the through fixing hole (23);
- un dispositif (4) de rétention de câble comportant : un socle (7) muni d’un pied (8) inséré dans l’orifice de fixation traversant (23) et comportant des surfaces d’arrêt (18,20) disposées contre la surface d’appui inférieure (26) et contre la surface d’appui supérieure (25) et; - a cable retention device (4) comprising: a base (7) provided with a foot (8) inserted into the through fixing hole (23) and comprising stop surfaces (18,20) arranged against the lower bearing surface (26) and against the upper bearing surface (25) and;
- au moins une aile flexible (10) rattachée au socle (7) par une attache élastique (12) ; - at least one flexible wing (10) attached to the base (7) by an elastic clip (12);
Caractérisé en ce que ladite aile flexible (10) est munie à l’une de ses extrémités d’un patin (11) disposé dans le canal (2,3) de guidage de câble et est constituée d’une languette ondulée dont une portion a un profil en forme de U. Characterized in that said flexible wing (10) is provided at one of its ends with a shoe (11) placed in the channel (2,3) for guiding the cable and consists of a corrugated tongue of which a portion has a U-shaped profile.
2. Chemin de câble d’aéronef selon la revendication 1, caractérisé en ce que le socle (7) comporte des pattes élastiques supérieures (19) définissant des surfaces d’arrêt supérieures (20) disposées contre la surface d’appui supérieure (25) du rebord latéral (24). 2. Aircraft cable tray according to claim 1, characterized in that the base (7) comprises upper elastic tabs (19) defining upper stop surfaces (20) arranged against the upper bearing surface (25 ) of the side edge (24).
3. Chemin de câble d’aéronef selon la revendication 2, caractérisé en ce que les pattes élastiques supérieures (19) sont élastiquement déformées en flexion par l’appui des surfaces d’arrêt supérieures (20) sur la surface d’appui supérieure (25) du rebord latéral (24). 3. Aircraft cable tray according to claim 2, characterized in that the upper elastic tabs (19) are elastically deformed in bending by the support of the upper stop surfaces (20) on the upper bearing surface ( 25) of the side rim (24).
4. Chemin de câble d’aéronef selon l'une des revendications précédentes, caractérisé en ce que le socle (7) comporte des pattes élastiques inférieures (16) définissant des surfaces d’arrêt inférieures (18) disposées contre la surface d’appui inférieure (26) du rebord latéral (24). 4. Aircraft cable tray according to one of the preceding claims, characterized in that the base (7) comprises lower elastic tabs (16) defining lower stop surfaces (18) arranged against the support surface bottom (26) of the side rim (24).
5. Chemin de câble d’aéronef selon la revendication 4, caractérisé en ce que les pattes élastiques inférieures (16) comportent une dent (17) permettant un clipsage des pattes élastiques inférieures (16) à travers l’orifice de fixation traversant (23). 5. Aircraft cable tray according to claim 4, characterized in that the lower elastic lugs (16) comprise a tooth (17) allowing clipping of the lower elastic lugs (16) through the through fixing hole (23 ).
6. Chemin de câble d’aéronef selon l’une des revendications 4 ou 5, caractérisé en ce que les pattes élastiques inférieures (16) sont élastiquement déformées en traction par l’appui des surfaces d’arrêt inférieures (18) sur la surface d’appui inférieure (26) du rebord latéral (24). 6. Aircraft cable tray according to one of claims 4 or 5, characterized in that the lower elastic tabs (16) are elastically deformed in tension by the support of the lower stop surfaces (18) on the surface lower support (26) of the side rim (24).
7. Chemin de câble d’aéronef selon l'une des revendications précédentes, caractérisé en ce que le pied (8) comporte un pion (9) ajusté dans l’orifice de fixation traversant (23). 7. Aircraft cable tray according to one of the preceding claims, characterized in that the foot (8) comprises a pin (9) fitted in the through fixing hole (23).
8. Chemin de câble d’aéronef selon l'une des revendications précédentes, caractérisé en ce que l’aile flexible (10) présente une épaisseur diminuant du socle (7) vers le patin (11). 8. Aircraft cable tray according to one of the preceding claims, characterized in that the flexible wing (10) has a thickness decreasing from the base (7) towards the shoe (11).
PCT/EP2022/055777 2021-03-09 2022-03-07 Aircraft cable tray with flexible flange WO2022189368A1 (en)

Applications Claiming Priority (2)

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FRFR2102238 2021-03-09
FR2102238A FR3120751A1 (en) 2021-03-09 2021-03-09 Aircraft cable tray with flexible wing

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Citations (4)

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Publication number Priority date Publication date Assignee Title
WO2007147984A1 (en) * 2006-06-22 2007-12-27 Renault S.A.S. Electric wire duct cover provided with a wire-retaining element, duct provided with such a cover, and use of this duct in the automotive industry
EP2573888A1 (en) * 2011-09-22 2013-03-27 Amphenol Air LB Clip for cable trough
US20130075153A1 (en) 2011-08-30 2013-03-28 Airbus Operations (S.A.S) Assembly comprising a raceway and a branching device, and associated branching device
JP2014093817A (en) 2012-11-01 2014-05-19 Sumitomo Wiring Syst Ltd Protector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007147984A1 (en) * 2006-06-22 2007-12-27 Renault S.A.S. Electric wire duct cover provided with a wire-retaining element, duct provided with such a cover, and use of this duct in the automotive industry
US20130075153A1 (en) 2011-08-30 2013-03-28 Airbus Operations (S.A.S) Assembly comprising a raceway and a branching device, and associated branching device
EP2573888A1 (en) * 2011-09-22 2013-03-27 Amphenol Air LB Clip for cable trough
JP2014093817A (en) 2012-11-01 2014-05-19 Sumitomo Wiring Syst Ltd Protector

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