EP2002131A1 - Nut for securing an aircraft windscreen and device for securing an aircraft windscreen incorporating the said nut - Google Patents

Nut for securing an aircraft windscreen and device for securing an aircraft windscreen incorporating the said nut

Info

Publication number
EP2002131A1
EP2002131A1 EP07731666A EP07731666A EP2002131A1 EP 2002131 A1 EP2002131 A1 EP 2002131A1 EP 07731666 A EP07731666 A EP 07731666A EP 07731666 A EP07731666 A EP 07731666A EP 2002131 A1 EP2002131 A1 EP 2002131A1
Authority
EP
European Patent Office
Prior art keywords
nut
base
windshield
fixing
aircraft
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.)
Withdrawn
Application number
EP07731666A
Other languages
German (de)
French (fr)
Inventor
Guy Cavailles
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.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
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 Airbus Operations SAS filed Critical Airbus Operations SAS
Publication of EP2002131A1 publication Critical patent/EP2002131A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
    • F16B37/064—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting with the use of separate rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/002—Means for preventing rotation of screw-threaded elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/044—Nut cages

Definitions

  • the present invention relates to a nut for fixing an aircraft windshield and to an attachment device for an aircraft windshield incorporating said nut.
  • FIG. 1 shows at 10 a windshield of an aircraft windshield connected to the structure 12 of the aircraft by means of a frame or at least one attached fastening flange 14 said structure 12 via connecting elements 16, the peripheral edges of said windshield glass 10 being interposed and clamped between the structure 12 and the flange 14.
  • sealing means are generally provided at the periphery of the windshield, interposed between the structure and the windshield and / or between the clamps and the windshield.
  • the fastening elements 16 each comprise a hexagonal screw 18 and a nut 20.
  • Each screw 18 passes through the fastening flange 14 and the structure 12, the head bearing against the outer surface of the fastening flange 14, and being arranged inside a housing 22 formed at the outer surface of said flange 14.
  • a plug or cap 24 is provided to close said housing 22 and limit the disturbances of the air flows at the surface of the fuselage of the aircraft.
  • a nut 20 is riveted on a wafer 26 nut, itself riveted to the structure.
  • This nut 20 makes it possible to seal against pressure.
  • This plate 26 nut holder provides a better distribution of clamping forces on the structure and limit the anchoring points on said structure, a plate usually carrying several nuts 20.
  • the nut 20 comprises a threaded bore 28 for screwing the screw 18 and two wings 30 extending in a plane substantially perpendicular to the longitudinal axis of the bore, at one end of the nut, and arranged on either side of said bore 28.
  • the wings 30 form a bearing surface that can be pressed against the structure 12 or a wafer 26 nut.
  • the plates 26 nut door and the nuts 20 are connected to the structure 12 by means of rivets 32.
  • the ice 10 of the windscreen equipped with sealing means is placed in the doorway formed in the structure, then the fixing flange or flanges 14 are arranged at the periphery of the glass 10.
  • the screws 18 are screwed into the riveted nuts 20.
  • the head of the screw is operated by any appropriate means, such as for example a key, the connection through the rivets 32 between the nuts 20 and the structure 12 preventing the rotation of said nuts during screwing and allowing the tightening of said screws 18.
  • This assembly provides a secure and strong attachment of the windshield. To remove the windshield windshield, it is necessary to unscrew the screws 18 in order to separate the fastening flange (s) from the structure and to release the said ice-cream (10). This operation is supposed to be quick and easy.
  • the present invention aims to overcome the drawbacks of the prior art by proposing a nut for fixing an aircraft windshield facilitating the change of said nut when the latter is damaged, especially when changing the windshield. .
  • the invention relates to a nut for fixing an aircraft windshield interposed between two elements held together by at least one connecting element comprising a screw and said nut, said nut comprising two parts, a first part called a body having a threaded bore capable of cooperating with the threaded rod of the screw, and a second part called base capable of being secured to one of the holding elements of the windshield, the body and the base having cooperating forms for preventing rotation of the body relative to the base according to the axis of the bore of the body, characterized in that the body comprises at one of its ends a surface capable of being in contact with the base, said surface having at least one protrusion projecting from said surface in the direction of the axis of the bore capable of cooperating with an imprint formed at the level of the emba is.
  • FIG. 1 is a section illustrating a device for fixing a windshield according to the prior art
  • FIG. 2 is a section illustrating a device for attaching a windshield according to the invention
  • FIG. 3 is a perspective view of a nut for fixing a windshield according to the invention
  • FIG. 4 is a perspective view illustrating the body of a nut according to the invention
  • FIG. 5 is a perspective view illustrating the base of a nut according to the invention.
  • FIG. 6 is an elevational view from above illustrating an example of implantation of the nuts
  • FIG. 7A is a cross-section illustrating an example of implantation
  • FIG. 2 shows at 40 an aircraft windshield glass connected to the structure 42 of an aircraft by means of a frame or at least one fastening flange 44 connected to it said structure 42 through at least one connecting element 46, the peripheral edges of said windshield glass 40 being interposed and clamped between the structure 42 and the flange 44.
  • a plurality of connecting elements are distributed around the periphery of the window windshield.
  • et ⁇ nchéotti means are generally provided at the periphery of the windshield, interposed between the structure and the windshield and / or between the fixing flanges and the windshield.
  • a connecting element 46 comprises a screw 48 and a nut 50, the assembled holding elements (structure / flange (s)) being interposed between the head of the screw and the nut.
  • Each screw 48 passes through the fastening flange 44 and the structure 42, the head bearing against the outer surface of the fastening flange 44, and being disposed inside a housing 52 formed at the outer surface of said flange 44.
  • a plug or cap 54 is provided to close said housing 52 and to limit the disturbances of the air flows at the level of the fuselage surface of the aircraft and not to allow the infiltration of water.
  • the structure, the mounting flanges and the sealing means are not more detailed because they are known to those skilled in the art and vary from one aircraft model to another.
  • the head of the screw 18 may have different external shapes and / or imprints allowing it to be maneuvered. Even so, the description is made with a hexagonal screw, the invention is in no way limited to this type of screw. Similarly, the shapes of the housing 52, and therefore the plug 54, are adapted in particular to the head of the screw to facilitate the maneuvering of said head.
  • the screw 48 may comprise means for preventing its unscrewing at the level of the head, such as for example a slotted washer.
  • the nuts 50 can be auto-queens.
  • the fastening device further comprises screws 48 and nuts 50, at least one plate 56 carrying a nut that can be inserted between at least one nut 50 and the structure 42.
  • a wafer plate 56.1 can support a nut 50 as shown in FIGS. 6 and 7B.
  • a wafer plate 56.2 can support several nuts 50 as shown in Figures 6 and 7 A.
  • the wafer plates 56 are secured to the structure 42 by any suitable means, including by means of at least one rivet 58 .
  • a wafer 56 serves to obtain a better distribution of clamping forces on the structure and limit the anchoring points on said structure, a wafer generally carrying several nuts 50.
  • the shapes, dimensions and number of platelets are determined by those skilled in the art. These pads are not more detailed because they are known.
  • the nuts 50 are secured to the structure 42 directly, or indirectly via a plate 56, to prevent the rotation of said nuts during the screwing of the screws 48 and to allow the tightening of said screws 18. This connection allows also to avoid the unscrewing of nuts due to particular vibrations.
  • the nut 50 comprises two parts, a first portion 60, hereinafter referred to as a body, having a tapped bore 62 capable of cooperating with the threaded rod of a screw 48, and a second portion 64 subsequently called a base capable of being secured to the structure 42, the body 60 and the base having cooperating shapes to prevent the rotation of the body 60 relative to the base 64 along the axis 66 of the bore 62.
  • the base 64 is connected to the structure or to a nut plate by means of at least one rivet 68, preferably two rivets arranged diametrically opposite.
  • the body 60 comprises a blind tapped bore 62. This feature limits the risk of damage to the nut due to corrosion between the nut and the threaded rod of the screw.
  • the body comprises a substantially cylindrical outer shape with diameters substantially coaxial with the axis 66.
  • the body 60 comprises at one of its ends a surface 70 capable of being in contact with the base 64, said surface being substantially perpendicular to the axis 66.
  • the surface 70 comprises at least one protuberance 72 projecting from said surface 70 along the axis 66 of the bore capable of cooperating with a recess 74 formed at the base 64.
  • the protuberance 72 has a lower section to the bearing surface 70 which allows to obtain a more compact nut.
  • the base comprises a bearing surface against which can bear the surface 70 with a recessed shape corresponding to the impression 74 in which the protuberance 72 can be housed.
  • the body 60 comprises a protuberance 72 centered with respect to the axis 66 forming a shoulder whose peripheral shapes are fitted to those of the cavity 74 formed at the base 64.
  • the protuberance 72 and the imprint have a square peripheral shape with rounded corners, as illustrated in FIGS.
  • the base 64 is in the form of a plate comprising the imprint 74.
  • the imprint 74 may have an identical section over the entire height of the base as illustrated in FIG. 5 or include a shoulder with a reduced section allowing the passage of the threaded rod.
  • the base 64 comprises two flanges 76 disposed on either side of the recess 64 with through-holes 78 provided for the rivets 68.
  • sealing means 80 are provided between the body 60 and the base 64.
  • the surface 70 of the body 60 comprises a peripheral groove 82 surrounding the protuberance 72, the groove 82 being able to accommodate a seal, in particular an O-ring. This feature improves the seal and prevent corrosion between the threaded rod of the screw 48 and the nut 50.
  • the nut 50 comprises means making it possible to limit the translation movements of the body 60 with respect to the base 64 in the direction defined by the axis 66.
  • the nut 50 comprises a hoop 84 whose ends are connected to the base 64 at two diametrically opposite points relative to the impression 74.
  • the hoop 84 is capable of occupying a first position in which it extends in a plane substantially perpendicular to the base 64 as shown in Figure 3 so as to immobilize the body 60, and another position in which it is inclined and no longer retains the body 60. This feature facilitates mounting, the body of the nut being held in place by the hoop 84 even if said body tends to fall due to its own weight.
  • the base 64 comprises two tabs 86 curved diametrically opposite the cavity, each with a hole 88 capable of receiving a curved end of the arch 84 corresponding.
  • This solution provides a simple connection between the arch and the base.
  • the base of the nut 50 is secured to the structure 42, either directly or via a wafer 56 nut holder connected to the structure by rivets 58, the base 64 being connected to the wafer nut by means of rivets 68.
  • the body 60 of the nut is placed on the base 64 and held by the hoop 84.
  • the windshield glass 10 equipped with sealing means is then placed in the recess formed in the structure 42, and then the fastening flange or flanges 44 are placed on the periphery of the glass 10.
  • the screws 48 are screwed in riveted nuts 50.
  • the head of the screw is operated by any appropriate means such as for example a key.
  • the fixing device comprising the screw and the nut makes it possible to obtain a secure connection because the protuberance 72 of the body is held in the cavity 74 thanks to the force exerted by the screw 48 on the body 60 and prevents the rotation of said body body relative to the base 64 which is itself immobilized relative to the structure.
  • the risks of corrosion between the threaded rod of the screw 48 and the nut 50 are limited by the sealing means 80 and the blind bore 62.
  • the nut of the invention allows a faster change of said nut because it comprises two parts, only the non-structural part is likely to be changed in case of damage. Thus, it is sufficient to move the hoop 84 to change the body 60.
  • the base 64 is still integral with the structure or the nut holder plate so that it is no longer necessary to disassemble the entire nut and the plate, to reassemble the assembly by riveting on the one hand said plate on the structure and secondly the nut on the nut plate.
  • the change of windshield is facilitated and can take place in a short period of time, limiting the downtime of the aircraft.
  • the mounting could be reversed the nut being connected to the mounting flange 44 and the head of the screw bearing against the structure 46.

Abstract

The subject of the invention is a nut for securing an aircraft windscreen (40) inserted between two elements (42, 44) which are held together by at least one connecting element (46) comprising a bolt (48) and the said nut (50), the said nut (50) comprising two parts, a first part (60) called the body comprising a tapped bore (62) able to collaborate with the threaded shank of the bolt (48) and a second part (64) termed the base which can be secured to one of the windscreen securing elements (42, 44), the body (60) and the base (64) having collaborating shapes to prevent the body (60) from rotating with respect to the base (64) about the axis (66) of the bore (62) of the body, characterized in that the body (60) at one of its ends has a surface able to be brought into contact with the base (64), the said surface comprising at least one protrusion projecting from the said surface in the direction of the axis (66) of the bore (62) and able to collaborate with an indentation formed in the base (64).

Description

ECROU POUR LA FIXATION D'UN PARE- BRISE D1AERONEF ETNUT FOR FIXING A WINDSHIELD OF AIRCRAFT AND 1
DISPOSITIF DE FIXATION D'UN PARE-BRISE D'AERONEFDEVICE FOR FIXING AN AIRCRAFT WINDSHIELD
INCORPORANT LEDIT ECROUINCORPORATING THIS NUT
La présente invention se rapporte à un écrou pour la fixation d'un pare-brise d'aéronef ainsi qu'à un dispositif de fixation d'un pare-brise d'aéronef incorporant ledit écrou.The present invention relates to a nut for fixing an aircraft windshield and to an attachment device for an aircraft windshield incorporating said nut.
Sur la figure 1, on a représenté en 10 une glace d'un pare-brise d'aéronef reliée à la structure 12 de l'aéronef au moyen d'un encadrement ou d'au moins une bride de fixation 14 relié(e) à ladite structure 12 par le biais d'éléments de liaison 16, les bords périphériques de ladite glace 10 du pare-brise étant intercalés et serrés entre la structure 12 et la bride 14.FIG. 1 shows at 10 a windshield of an aircraft windshield connected to the structure 12 of the aircraft by means of a frame or at least one attached fastening flange 14 said structure 12 via connecting elements 16, the peripheral edges of said windshield glass 10 being interposed and clamped between the structure 12 and the flange 14.
En complément, des moyens d'étanchéité sont généralement prévus en périphérie du pare-brise, intercalés entre la structure et le pare-brise et/ou entre les brides de fixation et le pare-brise.In addition, sealing means are generally provided at the periphery of the windshield, interposed between the structure and the windshield and / or between the clamps and the windshield.
Les éléments de fixation 16 comprennent chacun une vis 18 à tête hexagonale et un écrou 20. Chaque vis 18 traverse la bride de fixation 14 et la structure 12, la tête prenant appui contre la surface extérieure de la bride de fixation 14, et étant disposée à l'intérieur d'un logement 22 ménagé au niveau de la surface extérieure de ladite bride 14. Un bouchon ou capuchon 24 est prévu pour fermer ledit logement 22 et limiter les perturbations des écoulements d'air au niveau de la surface du fuselage de l'aéronef.The fastening elements 16 each comprise a hexagonal screw 18 and a nut 20. Each screw 18 passes through the fastening flange 14 and the structure 12, the head bearing against the outer surface of the fastening flange 14, and being arranged inside a housing 22 formed at the outer surface of said flange 14. A plug or cap 24 is provided to close said housing 22 and limit the disturbances of the air flows at the surface of the fuselage of the aircraft.
Un écrou 20 est riveté sur une plaquette 26 porte écrou, elle-même rivetée sur la structure. Cet écrou 20 permet l'étanchéité à la pression. Cette plaquette 26 porte écrou permet d'obtenir une meilleure répartition des efforts de serrage sur la structure et de limiter les points d'ancrage sur ladite structure, une plaquette portant généralement plusieurs écrous 20. Comme illustré sur la figure 1, l'écrou 20 comprend un alésage taraudé 28 permettant le vissage de la vis 18 et deux ailes 30 s'étendant dans un plan sensiblement perpendiculaire à l'axe longitudinal de l'alésage, à une extrémité de l'écrou, et disposées de part et d'autre dudit alésage 28. Les ailes 30 forment une surface d'appui susceptible d'être plaquée contre la structure 12 ou une plaquette 26 porte écrou. Pour le montage initial, les plaquettes 26 porte écrou ainsi que les écrous 20 sont reliés à la structure 12 par l'intermédiaire de rivets 32. En suivant, la glace 10 du pare brise équipée des moyens d'étanchéité est placée dans l'embrasure ménagée dans la structure, puis la ou les brides 14 de fixation sont disposées en périphérie de la glace 10. En suivant, les vis 18 sont vissées dans les écrous 20 rivetés. A cet effet, la tête de la vis est manœuvrée par tout moyen approprié, tel que par exemple une clé, la liaison par l'intermédiaire des rivets 32 entre les écrous 20 et la structure 12 empêchant la rotation desdits écrous lors du vissage et permettant le serrage desdites vis 18. Cet assemblage permet d'obtenir une fixation sûre et résistante du pare-brise. Pour démonter la glace du pare-brise, il convient de dévisser les vis 18 afin de désolidariser la ou les brides de fixation de la structure et dégager ladite glace 10. Cette opération est sensée être rapide et facile.A nut 20 is riveted on a wafer 26 nut, itself riveted to the structure. This nut 20 makes it possible to seal against pressure. This plate 26 nut holder provides a better distribution of clamping forces on the structure and limit the anchoring points on said structure, a plate usually carrying several nuts 20. As shown in Figure 1, the nut 20 comprises a threaded bore 28 for screwing the screw 18 and two wings 30 extending in a plane substantially perpendicular to the longitudinal axis of the bore, at one end of the nut, and arranged on either side of said bore 28. The wings 30 form a bearing surface that can be pressed against the structure 12 or a wafer 26 nut. For the initial assembly, the plates 26 nut door and the nuts 20 are connected to the structure 12 by means of rivets 32. By following, the ice 10 of the windscreen equipped with sealing means is placed in the doorway formed in the structure, then the fixing flange or flanges 14 are arranged at the periphery of the glass 10. By following, the screws 18 are screwed into the riveted nuts 20. For this purpose, the head of the screw is operated by any appropriate means, such as for example a key, the connection through the rivets 32 between the nuts 20 and the structure 12 preventing the rotation of said nuts during screwing and allowing the tightening of said screws 18. This assembly provides a secure and strong attachment of the windshield. To remove the windshield windshield, it is necessary to unscrew the screws 18 in order to separate the fastening flange (s) from the structure and to release the said ice-cream (10). This operation is supposed to be quick and easy.
Cependant, elle peut s'avérer longue et fastidieuse lorsqu'un écrou est endommagé, notamment lorsque ledit écrou et la vis associée sont corrodés. En effet, il convient alors de démonter l'écrou 20 riveté sur la plaquette 26 elle- même rivetée sur la structure, ladite plaquette devant être également démontée pour pouvoir y riveter un nouvel écrou. Cette opération est relativement longue et délicate, notamment en raison du manque d'accès et de l'environnement complexe à l'intérieur d'un cockpit. Or, le temps de changement du pare-brise doit être le plus court possible afin de limiter le temps d'intervention et d'immobilisation de l'aéronef pour ne pas pénaliser la compagnie aérienne en limitant le temps d'exploitation dudit aéronef. Cette problématique est accentuée si le remplacement doit intervenir lors d'une escale de l'aéronef puisqu'il peut en résulter un retard pour le vol ou même une annulation. Aussi, la présente invention vise à pallier aux inconvénients de l'art antérieur en proposant un écrou pour la fixation d'un pare-brise d'aéronef facilitant le changement dudit écrou lorsque ce dernier est endommagé, notamment lors du changement du pare-brise.However, it can be long and tedious when a nut is damaged, especially when said nut and the associated screw are corroded. Indeed, it is then necessary to disassemble the nut 20 riveted on the plate 26 itself riveted to the structure, said plate to be also disassembled to rivet a new nut. This operation is relatively long and delicate, in particular because of the lack of access and the complex environment inside a cockpit. However, the windshield change time must be as short as possible to limit the time of intervention and immobilization of the aircraft so as not to penalize the airline by limiting the operating time of said aircraft. This problem is accentuated if the replacement must occur during a stopover of the aircraft since it may result in a delay for the flight or even a cancellation. Also, the present invention aims to overcome the drawbacks of the prior art by proposing a nut for fixing an aircraft windshield facilitating the change of said nut when the latter is damaged, especially when changing the windshield. .
A cet effet, l'invention a pour objet un écrou pour la fixation d'un pare-brise d'aéronef intercalé entre deux éléments maintenus assemblés par au moins un élément de liaison comportant une vis et ledit écrou, ledit écrou comprenant deux parties, une première partie appelée corps comportant un alésage taraudé susceptible de coopérer avec la tige filetée de la vis, et une seconde partie appelée embase susceptible d'être solidarisée à un des éléments de maintien du pare-brise, le corps et l'embase ayant des formes coopérantes permettant d'empêcher la rotation du corps par rapport à l'embase selon l'axe de l'alésage du corps, caractérisé en ce que le corps comprend à une de ses extrémités une surface susceptible d'être en contact avec l'embase, ladite surface comportant au moins une protubérance venant en saillie par rapport à ladite surface selon la direction de l'axe de l'alésage susceptible de coopérer avec une empreinte ménagée au niveau de l'embase.For this purpose, the invention relates to a nut for fixing an aircraft windshield interposed between two elements held together by at least one connecting element comprising a screw and said nut, said nut comprising two parts, a first part called a body having a threaded bore capable of cooperating with the threaded rod of the screw, and a second part called base capable of being secured to one of the holding elements of the windshield, the body and the base having cooperating forms for preventing rotation of the body relative to the base according to the axis of the bore of the body, characterized in that the body comprises at one of its ends a surface capable of being in contact with the base, said surface having at least one protrusion projecting from said surface in the direction of the axis of the bore capable of cooperating with an imprint formed at the level of the emba is.
Cette solution permet d'obtenir une fixation fiable tout en limitant les temps d'intervention lors du démontage grâce à un écrou en deux parties. D'autres caractéristiques et avantages ressortïront de la description qui va suivre de l'invention, description donnée à titre d'exemple uniquement, en regard des dessins annexés sur lesquels :This solution provides a reliable fastening while limiting the time of intervention during disassembly with a nut in two parts. Other features and advantages will become apparent from the following description of the invention, description given by way of example only, with reference to the accompanying drawings in which:
- la figure 1 est une coupe illustrant un dispositif de fixation d'un pare-brise selon l'art antérieur,FIG. 1 is a section illustrating a device for fixing a windshield according to the prior art,
- la figure 2 est une coupe illustrant un dispositif de fixation d'un pare- brise selon l'invention,FIG. 2 is a section illustrating a device for attaching a windshield according to the invention,
- la figure 3 est une vue en perspective d'un écrou pour la fixation d'un pare-brise selon l'invention, - la figure 4 est une vue en perspective illustrant le corps d'un écrou selon l'invention,FIG. 3 is a perspective view of a nut for fixing a windshield according to the invention, FIG. 4 is a perspective view illustrating the body of a nut according to the invention,
- la figure 5 est une vue en perspective illustrant l'embase d'un écrou selon l'invention,FIG. 5 is a perspective view illustrating the base of a nut according to the invention,
- la figure 6 est une vue en élévation de dessus illustrant un exemple d'implantation des écrous,FIG. 6 is an elevational view from above illustrating an example of implantation of the nuts,
- la figure 7A est une coupe transversale illustrant un exemple d'implantation, etFIG. 7A is a cross-section illustrating an example of implantation, and
- la figure 7B est une coupe transversale illustrant un autre exemple d'implantation. Sur la figure 2, on a représenté en 40 une glace d'un pare-brise d'aéronef reliée à la structure 42 d'un aéronef au moyen d'un encadrement ou d'au moins une bride de fixation 44 relié(e) à ladite structure 42 par le biais d'au moins un élément de liaison 46, les bords périphériques de ladite glace 40 du pare-brise étant intercalés et serrés entre la structure 42 et la bride 44. Pour assurer un montage sûr, une pluralité d'éléments de liaison sont répartis en périphérie de la glace du pare-brise. En complément, des moyens d'étαnchéité sont généralement prévus en périphérie du pare-brise, intercalés entre la structure et le pare-brise et/ou entre les brides de fixation et le pare-brise.- Figure 7B is a cross section illustrating another example of implantation. FIG. 2 shows at 40 an aircraft windshield glass connected to the structure 42 of an aircraft by means of a frame or at least one fastening flange 44 connected to it said structure 42 through at least one connecting element 46, the peripheral edges of said windshield glass 40 being interposed and clamped between the structure 42 and the flange 44. To ensure a secure mounting, a plurality of connecting elements are distributed around the periphery of the window windshield. In addition, etαnchéité means are generally provided at the periphery of the windshield, interposed between the structure and the windshield and / or between the fixing flanges and the windshield.
Un élément de liaison 46 comprend une vis 48 ainsi qu'un écrou 50, les éléments de maintien assemblés (structure/bride(s)) étant intercalés entre la tête de la vis et l'écrou.A connecting element 46 comprises a screw 48 and a nut 50, the assembled holding elements (structure / flange (s)) being interposed between the head of the screw and the nut.
Chaque vis 48 traverse la bride de fixation 44 et la structure 42, la tête prenant appui contre la surface extérieure de la bride de fixation 44, et étant disposée à l'intérieur d'un logement 52 ménagé au niveau de la surface extérieure de ladite bride 44. Un bouchon ou capuchon 54 est prévu pour fermer ledit logement 52 et limiter les perturbations des écoulements d'air au niveau de la surface du fuselage de l'aéronef et pour ne pas permettre l'infiltration d'eau. La structure, les brides de fixation ainsi que les moyens d'étanchéité ne sont pas plus détaillés car ils sont connus de l'homme du métier et varient d'un modèle d'aéronef à l'autre.Each screw 48 passes through the fastening flange 44 and the structure 42, the head bearing against the outer surface of the fastening flange 44, and being disposed inside a housing 52 formed at the outer surface of said flange 44. A plug or cap 54 is provided to close said housing 52 and to limit the disturbances of the air flows at the level of the fuselage surface of the aircraft and not to allow the infiltration of water. The structure, the mounting flanges and the sealing means are not more detailed because they are known to those skilled in the art and vary from one aircraft model to another.
Selon les variantes, la tête de la vis 18 peut avoir différentes formes extérieures et/ou empreintes permettant de la manoeuvrer. Même si, la description est faite avec une vis à tête hexagonale, l'invention n'est aucunement limitée à ce type de vis. De même, les formes du logement 52, et par conséquent du bouchon 54, sont adaptées notamment à la tête de la vis pour faciliter la manœuvre de ladite tête. Selon les variantes, la vis 48 peut comprendre des moyens pour empêcher son dévissage au niveau de la tête, tel que par exemple une rondelle fendue. De même, les écrous 50 peuvent être auto-f reines. Avantageusement, le dispositif de fixation comprend en plus des vis 48 et des écrous 50, au moins une plaquette 56 porte écrou susceptible d'être intercalée entre au moins un écrou 50 et la structure 42. Une plaquette 56.1 porte écrou peut supporter un écrou 50 comme illustré sur les figures 6 et 7B. En variante, une plaquette 56.2 porte écrou peut supporter plusieurs écrous 50 comme illustré sur les figures 6 et 7 A. Les plaquettes 56 porte écrou sont solidarisées à la structure 42 par tout moyen approprié, notamment par le biais d'au moins un rivet 58.According to the variants, the head of the screw 18 may have different external shapes and / or imprints allowing it to be maneuvered. Even so, the description is made with a hexagonal screw, the invention is in no way limited to this type of screw. Similarly, the shapes of the housing 52, and therefore the plug 54, are adapted in particular to the head of the screw to facilitate the maneuvering of said head. According to the variants, the screw 48 may comprise means for preventing its unscrewing at the level of the head, such as for example a slotted washer. Similarly, the nuts 50 can be auto-queens. Advantageously, the fastening device further comprises screws 48 and nuts 50, at least one plate 56 carrying a nut that can be inserted between at least one nut 50 and the structure 42. A wafer plate 56.1 can support a nut 50 as shown in FIGS. 6 and 7B. Alternatively, a wafer plate 56.2 can support several nuts 50 as shown in Figures 6 and 7 A. The wafer plates 56 are secured to the structure 42 by any suitable means, including by means of at least one rivet 58 .
Une plaquette 56 porte écrou permet d'obtenir une meilleure répartition des efforts de serrage sur la structure et de limiter les points d'ancrage sur ladite structure, une plaquette portant généralement plusieurs écrous 50. Les formes, les dimensions et le nombre des plaquettes sont déterminés par l'homme du métier. Ces plaquettes ne sont pas plus détaillées car elles sont connues.A wafer 56 serves to obtain a better distribution of clamping forces on the structure and limit the anchoring points on said structure, a wafer generally carrying several nuts 50. The shapes, dimensions and number of platelets are determined by those skilled in the art. These pads are not more detailed because they are known.
Généralement, l'accès aux écrous 50 est limité en raison notamment des formes complexes de la structure qui comprend à ce niveau de nombreux renforts et de l'environnement complexe à l'intérieur du cockpit d'un aéronef. Par conséquent, les écrous 50 sont solidarisés à la structure 42 directement, ou indirectement par l'intermédiaire d'une plaquette 56, pour empêcher la rotation desdits écrous lors du vissage des vis 48 et pour permettre le serrage desdites vis 18. Cette liaison permet également d'éviter le dévissage des écrous en raison notamment des vibrations. Selon l'invention, l'écrou 50 comprend deux parties, une première partie 60 appelée par la suite corps comportant un alésage taraudé 62 susceptible de coopérer avec la tige filetée d'une vis 48, et une seconde partie 64 appelée par la suite embase susceptible d'être solidarisée à la structure 42, le corps 60 et l'embase ayant des formes coopérantes permettant d'empêcher la rotation du corps 60 par rapport à l'embase 64 selon l'axe 66 de l'alésage 62. Selon un mode de réalisation, l'embase 64 est reliée à la structure ou à une plaquette porte écrou par l'intermédiaire d'au moins un rivet 68, de préférence deux rivets disposés de manière diamétralement opposée. De préférence, le corps 60 comprend un alésage 62 taraudé borgne. Cette caractéristique permet de limiter les risques d'endommagement de l'écrou en raison de la corrosion entre l'écrou et la tige filetée de la vis.Generally, access to the nuts 50 is limited because of the complex shapes of the structure which includes at this level many reinforcements and the complex environment inside the cockpit of an aircraft. Therefore, the nuts 50 are secured to the structure 42 directly, or indirectly via a plate 56, to prevent the rotation of said nuts during the screwing of the screws 48 and to allow the tightening of said screws 18. This connection allows also to avoid the unscrewing of nuts due to particular vibrations. According to the invention, the nut 50 comprises two parts, a first portion 60, hereinafter referred to as a body, having a tapped bore 62 capable of cooperating with the threaded rod of a screw 48, and a second portion 64 subsequently called a base capable of being secured to the structure 42, the body 60 and the base having cooperating shapes to prevent the rotation of the body 60 relative to the base 64 along the axis 66 of the bore 62. According to a embodiment, the base 64 is connected to the structure or to a nut plate by means of at least one rivet 68, preferably two rivets arranged diametrically opposite. Preferably, the body 60 comprises a blind tapped bore 62. This feature limits the risk of damage to the nut due to corrosion between the nut and the threaded rod of the screw.
Selon un mode de réalisation illustré sur les différentes figures, le corps comprend une forme extérieure sensiblement cylindrique avec des diamètres étages sensiblement coaxiaux à l'axe 66.According to an embodiment illustrated in the various figures, the body comprises a substantially cylindrical outer shape with diameters substantially coaxial with the axis 66.
Le corps 60 comprend à une de ses extrémités une surface 70 susceptible d'être en contact avec l'embase 64, ladite surface étant sensiblement perpendiculaire à l'axe 66. Pour empêcher la rotation du corps par rapport à l'embase selon l'axe 66, la surface 70 comprend au moins une protubérance 72 venant en saillie par rapport à ladite surface 70 selon l'axe 66 de l'alésage susceptible de coopérer avec une empreinte 74 ménagée au niveau de l'embase 64.The body 60 comprises at one of its ends a surface 70 capable of being in contact with the base 64, said surface being substantially perpendicular to the axis 66. To prevent rotation of the body relative to the base according to the axis 66, the surface 70 comprises at least one protuberance 72 projecting from said surface 70 along the axis 66 of the bore capable of cooperating with a recess 74 formed at the base 64.
Selon l'invention, la protubérance 72 a une section inférieure à la surface d'appui 70 ce qui permet d'obtenir un écrou plus compact.According to the invention, the protuberance 72 has a lower section to the bearing surface 70 which allows to obtain a more compact nut.
Ainsi, l'embase comprend une surface d'appui contre laquelle peut prendre appui la surface 70 avec une forme en creux correspondant à l'empreinte 74 dans laquelle peut se loger la protubérance 72.Thus, the base comprises a bearing surface against which can bear the surface 70 with a recessed shape corresponding to the impression 74 in which the protuberance 72 can be housed.
Avantageusement, le corps 60 comprend une protubérance 72 centrée par rapport à l'axe 66 formant un épaulement dont les formes périphériques sont ajustées à celles de l'empreinte 74 ménagée au niveau de l'embase 64.Advantageously, the body 60 comprises a protuberance 72 centered with respect to the axis 66 forming a shoulder whose peripheral shapes are fitted to those of the cavity 74 formed at the base 64.
Selon un mode de réalisation, la protubérance 72 et l'empreinte ont une forme périphérique carrée avec des angles arrondis, comme illustré sur les figures 4 etAccording to one embodiment, the protuberance 72 and the imprint have a square peripheral shape with rounded corners, as illustrated in FIGS.
5. De préférence, l'embase 64 se présente sous la forme d'une plaque comprenant l'empreinte 74. Selon les variantes, l'empreinte 74 peut avoir une section identique sur toute la hauteur de l'embase comme illustré sur la figure 5 ou comprendre un épαulement avec une section réduite permettant toutefois le passage de la tige filetée.5. Preferably, the base 64 is in the form of a plate comprising the imprint 74. According to the variants, the imprint 74 may have an identical section over the entire height of the base as illustrated in FIG. 5 or include a shoulder with a reduced section allowing the passage of the threaded rod.
L'embase 64 comprend deux ailes 76 disposées de part et d'autre de l'empreinte 64 avec des trous de passage 78 prévus pour les rivets 68. Selon une autre caractéristique de l'invention, des moyens 80 d'étanchéité sont prévus entre le corps 60 et l'embase 64. Selon un mode de réalisation, la surface 70 du corps 60 comprend une gorge 82 périphérique entourant la protubérance 72, la gorge 82 étant susceptible de loger un joint, notamment un joint torique. Cette caractéristique permet d'améliorer l'étanchéité et d'éviter la corrosion entre la tige filetée de la vis 48 et l'écrou 50.The base 64 comprises two flanges 76 disposed on either side of the recess 64 with through-holes 78 provided for the rivets 68. According to another characteristic of the invention, sealing means 80 are provided between the body 60 and the base 64. According to one embodiment, the surface 70 of the body 60 comprises a peripheral groove 82 surrounding the protuberance 72, the groove 82 being able to accommodate a seal, in particular an O-ring. This feature improves the seal and prevent corrosion between the threaded rod of the screw 48 and the nut 50.
Selon une autre caractéristique de l'invention, l'écrou 50 comprend des moyens permettant de limiter les mouvements de translation du corps 60 par rapport à l'embase 64 selon la direction définie par l'axe 66. A cet effet, l'écrou 50 comprend un arceau 84 dont les extrémités sont reliées à l'embase 64 au niveau de deux points diamétralement opposés par rapport à l'empreinte 74. L'arceau 84 est susceptible d'occuper une première position dans laquelle il s'étend dans un plan sensiblement perpendiculaire à l'embase 64 comme illustré sur la figure 3 de manière à immobiliser le corps 60, et une autre position dans laquelle il est incliné et ne retient plus le corps 60. Cette caractéristique permet de faciliter le montage, le corps de l'écrou étant maintenu en place grâce à l'arceau 84 même si ledit corps a tendance à tomber en raison de son propre poids.According to another characteristic of the invention, the nut 50 comprises means making it possible to limit the translation movements of the body 60 with respect to the base 64 in the direction defined by the axis 66. For this purpose, the nut 50 comprises a hoop 84 whose ends are connected to the base 64 at two diametrically opposite points relative to the impression 74. The hoop 84 is capable of occupying a first position in which it extends in a plane substantially perpendicular to the base 64 as shown in Figure 3 so as to immobilize the body 60, and another position in which it is inclined and no longer retains the body 60. This feature facilitates mounting, the body of the nut being held in place by the hoop 84 even if said body tends to fall due to its own weight.
Selon un mode de réalisation, l'embase 64 comprend deux pattes 86 recourbées diamétralement opposées par rapport à l'empreinte, avec chacune un trou 88 susceptible de recevoir une extrémité recourbée de l'arceau 84 correspondante. Cette solution permet d'obtenir une liaison simple entre l'arceau et l'embase. Lors du montage initial, l'embase de l'écrou 50 est solidarisée à la structure 42, soit directement, soit par l'intermédiaire d'une plaquette 56 porte écrou reliée à la structure par des rivets 58, l'embase 64 étant reliée à la plaquette porte écrou par l'intermédiaire de rivets 68. En suivant, le corps 60 de l'écrou est placé sur l'embase 64 et maintenu grâce à l'arceau 84.According to one embodiment, the base 64 comprises two tabs 86 curved diametrically opposite the cavity, each with a hole 88 capable of receiving a curved end of the arch 84 corresponding. This solution provides a simple connection between the arch and the base. During the initial assembly, the base of the nut 50 is secured to the structure 42, either directly or via a wafer 56 nut holder connected to the structure by rivets 58, the base 64 being connected to the wafer nut by means of rivets 68. Following, the body 60 of the nut is placed on the base 64 and held by the hoop 84.
La glace 10 du pare brise équipée des moyens d'étanchéité est ensuite placée dans l'embrasure ménagée dans la structure 42, puis la ou les brides 44 de fixation sont disposées en périphérie de la glace 10. En suivant, les vis 48 sont vissées dans les écrous 50 rivetés. A cet effet, la tête de la vis est manœuvrée par tout moyen approprié tel que par exemple une clé.The windshield glass 10 equipped with sealing means is then placed in the recess formed in the structure 42, and then the fastening flange or flanges 44 are placed on the periphery of the glass 10. By following, the screws 48 are screwed in riveted nuts 50. For this purpose, the head of the screw is operated by any appropriate means such as for example a key.
Le dispositif de fixation comprenant la vis et l'écrou permet d'obtenir une liaison sûre car la protubérance 72 du corps est maintenue dans l'empreinte 74 grâce à l'effort exercé par la vis 48 sur le corps 60 et empêche la rotation dudit corps par rapport à l'embase 64 qui est elle-même immobilisée par rapport à la structure.The fixing device comprising the screw and the nut makes it possible to obtain a secure connection because the protuberance 72 of the body is held in the cavity 74 thanks to the force exerted by the screw 48 on the body 60 and prevents the rotation of said body body relative to the base 64 which is itself immobilized relative to the structure.
Selon l'invention, les risques de corrosion entre la tige filetée de la vis 48 et l'écrou 50 sont limités grâce aux moyens d'étanchéité 80 et à l'alésage borgne 62.According to the invention, the risks of corrosion between the threaded rod of the screw 48 and the nut 50 are limited by the sealing means 80 and the blind bore 62.
Contrairement aux écrous de l'art antérieur, l'écrou de l'invention permet un changement plus rapide dudit écrou car il comprend deux parties, seule la partie non liée à la structure étant susceptible d'être changée en cas de détériorations. Ainsi, il suffit de déplacer l'arceau 84 pour changer le corps 60. L'embase 64 reste toujours solidaire de la structure ou de la plaquette porte écrou si bien qu'il n'est plus nécessaire de démonter la totalité de l'écrou et la plaquette, de remonter l'ensemble en rivetant d'une part ladite plaquette sur la structure et d'autre part l'écrou sur la plaquette porte écrou. Ainsi, grâce à l'écrou de l'invention le changement de pare-brise est facilité et peut s'opérer en un laps de temps réduit, limitant le temps d'immobilisation de l'aéronef. En variante, le montage pourrait être inversé l'écrou étant relié à la bride de fixation 44 et la tête de la vis prenant appui contre la structure 46. Unlike the nuts of the prior art, the nut of the invention allows a faster change of said nut because it comprises two parts, only the non-structural part is likely to be changed in case of damage. Thus, it is sufficient to move the hoop 84 to change the body 60. The base 64 is still integral with the structure or the nut holder plate so that it is no longer necessary to disassemble the entire nut and the plate, to reassemble the assembly by riveting on the one hand said plate on the structure and secondly the nut on the nut plate. Thus, thanks to the nut of the invention the change of windshield is facilitated and can take place in a short period of time, limiting the downtime of the aircraft. Alternatively, the mounting could be reversed the nut being connected to the mounting flange 44 and the head of the screw bearing against the structure 46.

Claims

REVENDICATIONS
1. Ecrou pour la fixation d'un pare-brise (40) d'aéronef intercalé entre deux éléments (42, 44) maintenus assemblés par au moins un élément de liaison (46) comportant une vis (48) et ledit écrou (50), ledit écrou (50) comprenant deux parties, une première partie (60) appelée corps comportant un alésage taraudé (62) susceptible de coopérer avec la tige filetée de la vis (48), et une seconde partie (64) appelée embase susceptible d'être solidarisée à un des éléments (42, 44) de maintien du pare-brise, le corps (60) et l'embase (64) ayant des formes coopérantes permettant d'empêcher la rotation du corps (60) par rapport à l'embase (64) selon l'axe (66) de l'alésage (62) du corps, caractérisé en ce que le corps (60) comprend à une de ses extrémités une surface (70) susceptible d'être en contact avec l'embase (64), ladite surface (70) comportant au moins une protubérance (72) venant en saillie par rapport à ladite surface (70) selon la direction de l'axe (66) de l'alésage (62) susceptible de coopérer avec une empreinte (74) ménagée au niveau de l'embase (64). 1. Nut for fixing an aircraft windshield (40) interposed between two elements (42, 44) held together by at least one connecting element (46) comprising a screw (48) and said nut (50). ), said nut (50) comprising two parts, a first portion (60) called a body having a threaded bore (62) engageable with the threaded rod of the screw (48), and a second portion (64) called base capable to be secured to one of the elements (42, 44) for holding the windshield, the body (60) and the base (64) having cooperating shapes for preventing rotation of the body (60) relative to the base (64) along the axis (66) of the bore (62) of the body, characterized in that the body (60) comprises at one of its ends a surface (70) capable of being in contact with the base (64), said surface (70) having at least one protuberance (72) projecting from said surface (70) in the direction of the axis (66) ) of the bore (62) capable of cooperating with a cavity (74) formed at the base (64).
2. Ecrou pour la fixation d'un pare-brise d'aéronef selon la revendication 1, caractérisé en ce que le corps (60) comprend une protubérance (72) centrée par rapport à l'axe (66) dont les formes périphériques sont ajustées à celles de l'empreinte (74) ménagée au niveau de l'embase (64), la protubérance (72) et l'empreinte (74) ayant une forme périphérique carrée avec des angles arrondis. 2. Nut for fixing an aircraft windshield according to claim 1, characterized in that the body (60) comprises a protuberance (72) centered with respect to the axis (66) whose peripheral shapes are adjusted to those of the recess (74) formed at the base (64), the protuberance (72) and the recess (74) having a square peripheral shape with rounded corners.
3. Ecrou pour la fixation d'un pare-brise d'un aéronef selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des moyens (80) d'étanchéité entre le corps (60) et l'embase (64).3. Nut for fixing a windshield of an aircraft according to any one of the preceding claims, characterized in that it comprises means (80) for sealing between the body (60) and the base (64).
4. Ecrou pour la fixation d'un pare-brise d'un aéronef selon la revendication 3, caractérisé en ce que la surface (70) du corps (60) comprend une gorge (82) périphérique entourant la protubérance (72), susceptible de loger un joint.4. Nut for fixing a windshield of an aircraft according to claim 3, characterized in that the surface (70) of the body (60) comprises a peripheral groove (82) surrounding the protuberance (72) capable of accommodating a joint.
5. Ecrou pour la fixation d'un pare-brise d'un aéronef selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des moyens permettant de limiter les mouvements de translation du corps (60) par rapport à l'embase (64) selon la direction définie par l'axe (66).5. Nut for fixing a windshield of an aircraft according to any one of the preceding claims, characterized in that it comprises means for limiting the translation movements of the body (60) relative to the base (64) in the direction defined by the axis (66).
6. Ecrou pour la fixation d'un pare-brise d'un aéronef selon la revendication 5, caractérisé en ce qu'il comprend un arceau (84) dont les extrémités sont reliées à l'embase (64), susceptible d'occuper une première position dans laquelle il s'étend dans un plan sensiblement perpendiculaire à l'embase (64) de manière à immobiliser le corps (60), et une autre position dans laquelle il est incliné et ne retient plus le corps (60).6. Nut for fixing a windshield of an aircraft according to claim 5, characterized in that it comprises a bow (84) whose ends are connected to the base (64), likely to occupy a first position in which it extends in a plane substantially perpendicular to the base (64) so as to immobilize the body (60), and another position in which it is inclined and no longer retains the body (60).
7. Ecrou pour la fixation d'un pare-brise d'un aéronef selon la revendication 6, caractérisé en ce que l'embase (64) comprend deux pattes (86) recourbées diamétralement opposées avec chacune un trou (88) susceptible de recevoir une extrémité recourbée de l'arceau (84) correspondante.7. Nut for fixing a windshield of an aircraft according to claim 6, characterized in that the base (64) comprises two tabs (86) curved diametrically opposite each with a hole (88) capable of receiving a curved end of the arch (84) corresponding.
8. Ecrou pour la fixation d'un pare-brise d'un aéronef selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps (60) comprend un alésage (62) taraudé borgne. 8. Nut for fixing a windshield of an aircraft according to any one of the preceding claims, characterized in that the body (60) comprises a bore (62) threaded blind.
9. Dispositif de fixation d'un pare-brise (40) d'un aéronef comprenant une structure (42), ledit pare-brise (40) étant intercalé entre ladite structure (42) et au moins une bride de fixation (44) maintenues assemblées par au moins un élément de fixation comportant une vis (48) et un écrou selon l'une quelconque des revendications précédentes. 9. Device for fixing a windshield (40) of an aircraft comprising a structure (42), said windshield (40) being interposed between said structure (42) and at least one fastening flange (44) held together by at least one fastener having a screw (48) and a nut according to any one of the preceding claims.
10. Dispositif de fixation d'un pare-brise d'aéronef selon la revendication 9, caractérisé en ce qu'il comprend au moins une plaquette (56) porte écrou intercalée entre la structure (42) et l'embase (64) de l'écrou. 10. Device for fixing an aircraft windshield according to claim 9, characterized in that it comprises at least one plate (56) nut carrier interposed between the structure (42) and the base (64) of the nut.
EP07731666A 2006-03-31 2007-02-26 Nut for securing an aircraft windscreen and device for securing an aircraft windscreen incorporating the said nut Withdrawn EP2002131A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0651128A FR2899291B1 (en) 2006-03-31 2006-03-31 NUT FOR FIXING AN AIRCRAFT WINDSHIELD AND DEVICE FOR FIXING AN AIRCRAFT WINDSHIELD INCORPORATING SAID NUT
PCT/FR2007/050848 WO2007113405A1 (en) 2006-03-31 2007-02-26 Nut for securing an aircraft windscreen and device for securing an aircraft windscreen incorporating the said nut

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EP2002131A1 true EP2002131A1 (en) 2008-12-17

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EP07731666A Withdrawn EP2002131A1 (en) 2006-03-31 2007-02-26 Nut for securing an aircraft windscreen and device for securing an aircraft windscreen incorporating the said nut

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US (1) US20090245968A1 (en)
EP (1) EP2002131A1 (en)
JP (1) JP2009531630A (en)
CN (1) CN101473143B (en)
BR (1) BRPI0709335A2 (en)
CA (1) CA2646822A1 (en)
FR (1) FR2899291B1 (en)
RU (1) RU2413881C2 (en)
WO (1) WO2007113405A1 (en)

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US20090245968A1 (en) 2009-10-01
CN101473143B (en) 2011-06-15
CN101473143A (en) 2009-07-01
FR2899291A1 (en) 2007-10-05
BRPI0709335A2 (en) 2011-07-12
JP2009531630A (en) 2009-09-03
WO2007113405A1 (en) 2007-10-11
FR2899291B1 (en) 2010-11-12
RU2008143207A (en) 2010-05-10
RU2413881C2 (en) 2011-03-10
CA2646822A1 (en) 2007-10-11

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