Transport tool configured to be temporarily mounted on a thrust reverser of an aircraft turbojet engine nacelle of a propulsion assembly

Abstract

The invention relates to a transport tool (40) configured to be temporarily mounted on a thrust reverser of an aircraft turbojet engine nacelle of a propulsion assembly, the tool (40) being intended to connect a front frame and a rear frame secured to one another. The transport tool (40) comprises: - at least one main portion (41, 42) extending along a first axis (X); and - at least one signalling blade (44) connected to the main portion (42) and extending in a use position along a second axis (Y) inclined with respect to the first axis (X).

Description

[0001] DESCRIPTION

[0002] TITLE: Transport tooling configured to be temporarily mounted on a thrust reverser of an aircraft turbojet engine nacelle of a propulsion system

[0003] Technical field of the invention

[0004] The present invention relates to the field of aircraft, and in particular to aircraft propulsion units comprising a nacelle and a turbojet engine with double flow.

[0005] More particularly, the invention relates to a grid thrust reverser for such propulsion units.

[0006] Even more particularly, the invention relates to the maintenance and transport of grid thrust reversers.

[0007] State of the prior art

[0008] A thrust reverser is a device for diverting the airflow passing through the propulsion unit towards the front of the nacelle, in order to shorten landing distances and limit the load on the brakes on the landing gear.

[0009] There are so-called mobile-grid thrust reversers in which the thrust reversers comprise a frame forming a fixed part of the reverser intended to be connected to a turbomachine casing, a mobile part and a plurality of grids extending between the fixed part and the mobile part. The grids are integral with an upstream frame and a downstream frame. The downstream frame can for example be fixed to a sliding cowl, called a "transcowl" in Anglo-Saxon terms. The upstream frame and the downstream frame are mobile relative to the fixed structure of the aircraft but are fixed relative to each other.

[0010] Fixed-grid thrust reversers are also known in which the thrust reversers comprise an upstream frame forming a first fixed part of the reverser intended to be connected to a turbomachine casing, a downstream frame forming a second fixed part of the reverser and a plurality of grids extending between the upstream frame and the downstream frame.

[0011] A grid thrust reverser allows the propulsion system to be converted from a direct thrust configuration to a thrust reverser configuration.

[0012] Reference may be made to documents FR 3 073 572 - Al and FR 3 127 479 - Al which describe examples of such a grid thrust reverser.

[0013] Grid configurations vary depending on the engine position. To simplify logistics and avoid doubling the number of thrust reversers in aftermarket inventory, it is best to store and transport thrust reversers without their grids.

[0014] During thrust reversal, the main function of the grilles is to direct the air flow upstream in order to obtain counter-thrust.

[0015] When the grids are installed on the thrust reverser, they provide the mechanical connection between the front or upstream frame and the rear or downstream frame of the fixed structure of the thrust reverser.

[0016] When the grids are absent, the immobilization of the rear frame of the fixed structure of the thrust reverser is incomplete.

[0017] All of these constraints require the use of transport tools which replace the grids to hold the rear frame of the thrust reverser during transport operations.

[0018] Currently, it is known to fix by screwing and / or broaching one or more fixed force recovery rods between the front frame and the rear frame of the thrust reverser.

[0019] We also know the use of false sheet metal grilles fixed by screwing and / or pinning between the front frame and the rear frame of the thrust reverser.

[0020] In an operational context with the time constraint for an aircraft on the ground, it happens that the maintenance teams forget to install the grids and consequently, the transport tools are left on the aircraft. Thus, some aircraft can end up in flight condition with these transport tools, which is prohibited because these parts were not included in the aircraft certification.

[0021] Statement of the invention

[0022] The present invention therefore aims to overcome the aforementioned drawbacks.

[0023] The objective of the invention is to propose a transport tool, or "ground support equipment" in English terms, configured to be mounted between the front frame and the rear frame of a thrust reverser with reduced bulk, easy to install and store, while being visible from outside the nacelle in the mounted position.

[0024] The subject of the invention is a transport tool, or "Ground Support Equipment" in English terms, configured to be temporarily mounted on a thrust reverser of a nacelle of an aircraft turbojet engine of a propulsion unit, in particular during ground operations, for example, maintenance or transport of the thrust reverser.

[0025] Said tooling is intended to connect a front frame or front grille support structure and a rear frame or rear grille support structure, integral with each other, that is to say fixed by one relative to the other. In other words, said front and rear frames have no relative mobility with respect to each other.

[0026] The transport equipment includes:

[0027] - at least one main part extending along a first axis, for example longitudinal; and

[0028] - at least one signaling blade connected to the main part and extending in a position of use along a second axis, for example transverse, inclined relative to the first axis.

[0029] Thus, the transport tooling is temporarily mounted on the thrust reverser, in place of the flow deflection grids, and connects the front frame and the rear frame.

[0030] By "temporarily mounted" is meant an element connecting the front frame and the rear frame for a limited period, for example during transport of the propulsion unit and / or its storage.

[0031] Such transport equipment makes it possible to immobilize the rear frame of the fixed structure of the thrust reverser when it is without deflection grids, while being visible from the outside of the thrust reverser and reducing its size during storage.

[0032] When assembling the deflection grids on the thrust reverser, the transport tooling is removed and the deflection grids replace said transport tooling to in turn connect the front frame and the rear frame of the thrust reverser.

[0033] In the absence of deflection grids, the transport tooling allows the mechanical forces to be taken up during transport of the thrust reverser.

[0034] The transport tooling is configured to be used on a large number of thrust reversers, which allows for the sharing of parts and consequently a gain in productivity and production costs.

[0035] Furthermore, thanks to the signal blade which is necessarily deployed when fixing the transport tooling on the front frame of the thrust reverser, the transport tooling is visible from outside the nacelle from all angles, which allows its detection when the aircraft is put back into service and consequently this avoids any oversight when installing the deflection grids.

[0036] Finally, such transport equipment is compact and lightweight, for example weighing less than or equal to 12 kg so that it can be handled by a single person, while being able to be fixed in place of the grids on the thrust reverser without damaging it.

[0037] According to one embodiment, the signaling blade is connected to the main part by a second articulation comprising a second axis of rotation. The transport tool is movable between a use position in which the signaling blade extends along the second axis and a storage position in which the signaling blade is articulated relative to the main part around the second articulation towards the main part.

[0038] According to one embodiment, the main part of the transport tool comprises at least two main parts extending along the first axis and connected to each other by a first articulation comprising a first axis of rotation around the second axis, perpendicular to the first axis. The signaling blade is connected to the second main part by the second articulation. The transport tool is in this case movable between a use position in which the first main part is in the extension of the second main part along the first axis and a storage position in which the first main part is articulated relative to the second main part (42) around the first articulation until it comes under the second main part.

[0039] The first joint allows rotation between the first main part and the second main part around a transverse axis, perpendicular to the first axis.

[0040] The second joint allows rotation between the signal blade and the second main part, or more generally the main part, around a transverse axis, perpendicular to the longitudinal axis.

[0041] Alternatively, one could provide a number of main parts greater than two, for example three main parts successively connected by joints.

[0042] Advantageously, the transport tool further comprises a member for fixing to the front frame, such as for example a screw, integral with the signaling blade and the second main part, or more generally with the main part, and extending perpendicularly to the extension axis of the second main part, or more generally with the main part, in the position of use.

[0043] For example, the front frame attachment member extends perpendicular to the first axis in the use position.

[0044] Advantageously, the transport tool further comprises a member for fixing to the rear frame, such as for example here a screw, secured to the first main part, or more generally to the main part.

[0045] For example, the rear frame attachment member extends perpendicular to the first axis in the use position.

[0046] The fasteners here are screws, but other reversible fasteners could be considered, such as bolts, ball pins or any other member allowing a reversible assembly. By "reversible" is meant that which can be removed, and in particular that which can be disassembled without damage. Reversible fasteners are therefore fastening means that can be removed and then reused, in this case to connect the front frame and the rear frame of the thrust reverser.

[0047] Advantageously, the transport tool further comprises a member for holding the first articulation in position in the position of use in which the main parts are in the extension of one another, the member for holding in position extending parallel to the longitudinal axis and is configured to block the first articulation in the position of use.

[0048] Thus, the first joint is immobilized by the position-holding member in the position of use.

[0049] The holding device is, for example, a screw.

[0050] According to one embodiment, the signaling blade comprises a first fixing portion secured to the second articulation, directly or indirectly via a yoke, a second portion extending perpendicularly from the first portion, a succession of portions, for example folded, for example three in number, extending from the second portion and an end portion substantially parallel to the second portion.

[0051] Alternatively, a different number of stamped portions could be provided between the first fixing portion and the end portion.

[0052] Preferably, the first attachment portion of the signal blade comprises a bore for receiving the attachment member to the front frame.

[0053] Due to the fact that the front frame attachment member is integral with the signal blade, the signal blade is necessarily in the position of use when the front frame attachment member is integral with the front frame.

[0054] For example, the signal blade is made of metallic material, for example stainless steel, or plastic material or even composite material.

[0055] For example, the signal blade could be made from a metal blade on which a heat-shrinkable sheath is placed, for example in a bright color, such as red.

[0056] For example, the first joint and / or the second joint comprises a hinge.

[0057] For example, the main parts are made of metallic material, for example stainless steel or composite material.

[0058] According to one embodiment, the transport tool comprises support yokes on which the first and second articulations are mounted respectively, the first yoke comprising a first part secured to the first main part and a second part secured to the second main part and connected to the first part by the first articulation, the second yoke comprising a first part secured to the second main part and a second part secured to the signaling blade and connected to the first part by the second articulation.

[0059] Alternatively, it could be provided that the transport tooling is free of such yokes and that the joints are mounted directly on the main parts and the signaling blade respectively.

[0060] For example, the second part of the second yoke includes a hole for receiving the front frame attachment member.

[0061] For example, the first part and the second part of the first yoke each comprise a longitudinal housing extending in the extension of one another, in the position of use, and intended to receive the position-holding member.

[0062] For example, and in no way limiting, the transport tool comprises two plates respectively arranged under each of the main parts at the level of the fixing member. These plates prevent damage to the frames of the thrust reverser in the position of use of the transport tool.

[0063] The plates can, for example, be made of synthetic material, such as polyamide (PA). Any other low-adhesion material can be used for the plates.

[0064] According to one embodiment, the transport tool comprises a third yoke for supporting the fixing member to the rear frame, said third yoke being integral with the first main part and comprising a bore for receiving the fixing member to the rear frame.

[0065] Alternatively, it could be provided that the transport tool is devoid of such a third yoke and to directly mount the fixing member to the rear frame on the first main part.

[0066] All of the screeds described above can, for example, be made from synthetic material, such as polyamide (PA) or even from metallic material.

[0067] According to a second aspect, the invention relates to a packaging assembly comprising a plurality of housings each intended to receive a transport tool as described previously, in the storage position.

[0068] According to another aspect, the invention relates to a thrust reverser comprising a front structure or front frame and a rear structure or rear frame fixed relative to the front frame and at least one ground transport tool as described previously, temporarily connecting the front frame and the rear frame, in the position of use, the signaling blade comprising an end portion extending beyond the thrust reverser in order to be visible from the outside.

[0069] It could be provided that the thrust reverser comprises a number greater than or equal to two of transport tools, spaced circumferentially from each other regularly or not.

[0070] Preferably, each main portion of the carrying tooling extends along the longitudinal axis parallel to the longitudinal extension axis in a position mounted on the thrust reverser.

[0071] According to another aspect, the invention relates to an aircraft propulsion assembly extending along a longitudinal extension axis comprising a nacelle for an aircraft turbojet engine comprising a thrust reverser as described previously.

[0072] Brief description of the drawings

[0073] Other aims, characteristics and advantages of the invention will appear on reading the following description, given solely by way of non-limiting example, and made with reference to the indexed drawings in which:

[0074] [Fig 1] is a schematic view of a propulsion assembly comprising a nacelle for an aircraft turbojet engine comprising a thrust reverser with moving grids according to the prior art, in a thrust reverser configuration;

[0075] [Fig 2] is a schematic half-view in longitudinal section of the propulsion assembly of Figure 1, in which the thrust reverser is in the direct thrust configuration;

[0076] [Fig 3] is a schematic half-view in longitudinal section of the propulsion assembly of Figure 1, in which the thrust reverser is in the thrust reverser configuration;

[0077] [Fig 4] is a schematic half-view in longitudinal section of a fixed-grid propulsion unit according to the prior art;

[0078] [Fig 5] is a schematic view of a thrust reverser comprising transport tooling according to the invention;

[0079] [Fig 5A] is a detail view of Figure 5;

[0080] [Fig 6] illustrates in detail, in perspective, the transport tool of figure 5, in a deployed position;

[0081] [Fig 7] illustrates in detail, in perspective, the transport equipment of the figure

[0082] 5, in a storage position; and

[0083] [Fig 8] schematically represents a packaging set of four transport tools from figure 5.

[0084] Detailed description of at least one embodiment

[0085] In the remainder of the description, the terms “axial” and “radial” are defined relative to a longitudinal extension axis Al of the propulsion unit 1.

[0086] The terms "forward" and "rear" are defined with respect to the general direction of circulation SI of the airflow through the propulsion unit 1 along the axis Al. These terms "forward" and "rear" could be substituted by the terms "upstream" and "downstream".

[0087] Figures 1 to 4 illustrate an aircraft propulsion assembly having a longitudinal central axis A1.

[0088] This propulsion unit 1 comprises a nacelle 2, a reactor mast 3 and a turbomachine type engine 4, visible in figures 2 and 3, housed in the nacelle 2.

[0089] The reactor mast 3, partially shown, is intended to be fixed to a wing (not shown) of the aircraft.

[0090] The turbomachine 4 is, in this example and in a non-limiting manner, a double-flow, double-spool turbojet engine comprising, from front to rear, a fan 5, a low-pressure compressor 6, a high-pressure compressor 7, a combustion chamber 8, a high-pressure turbine 9 and a low-pressure turbine 10. The compressors 6, 7, the combustion chamber 8 and the turbines 9, 10 form a gas generator. The turbojet engine 4 is provided with a fan casing 11 connected to the gas generator by structural arms 12.

[0091] The nacelle 2 comprises a front section forming an air inlet 13, a middle section which comprises two fan cowls 14 surrounding the fan casing 11 and a rear section 15.

[0092] The air inlet 13 is configured to allow optimal capture towards the turbojet engine 4 of the air necessary to supply a fan 5 and internal compressors 6, 7 of the turbojet engine 4.

[0093] In operation, an air flow 20 enters the propulsion unit 1 through the air inlet 13, passes through the fan 5 and then divides into a primary flow 20A and a secondary flow 20B. The primary flow 20A flows in a primary gas fixing vein 21A passing through the gas generator. The secondary flow 20B flows in a secondary vein 21B surrounding the gas generator. The secondary vein 21B is delimited radially inwards by a fixed internal fairing 17 which envelops the gas generator.

[0094] Radially outwards, the secondary vein 21 B is delimited by the fan casing 1 1.

[0095] The nacelle 2 further comprises a thrust reverser 30 called a mobile grid reverser comprising a grid support structure or front frame 31 secured to the front section 13 of the nacelle and a grid support structure or rear frame 32 here secured to a sliding cowl 34, called a “transcowl”.

[0096] The thrust reverser 30 further comprises a plurality of deflection grids 33 extending between the front structure 31 and the rear structure 32.

[0097] The front grille support structure 31 and the rear grille support structure 32 are preferably semi-cylindrical frames on which the deflection grilles 33 are fixed.

[0098] The front grille support structure 31 and the rear grille support structure 32 are fixed relative to each other.

[0099] The secondary vein 21 B comprises a blocking flap 35 movable between a position allowing the air flow 20B to pass in a direct thrust configuration and a position blocking the air flow 20B in a thrust reversal configuration.

[0100] The operation and fixing of the deflection grids is known and will not be described further.

[0101] In a direct thrust configuration, as seen in FIG. 2, the deflection grids 33 are housed in a space (not referenced) delimited in the front section 13 of the nacelle 2. The thrust reverser 30 thus makes it possible to channel the secondary flow 20B towards the rear of the propulsion unit 1, so as to generate thrust.

[0102] In a thrust reversal configuration, as seen in FIG. 3, the assembly formed by the front structure 31, the grids 33 and the rear structure 32 is axially spaced by a non-zero axial clearance J1 from the front section 13 of the nacelle 2 and the deflection grids 33 extend axially and circumferentially in said axial clearance J1. Thus, a radial opening is defined in the secondary flow path 21B. In this thrust reversal configuration, a portion of the secondary flow 21B flows through the deflection grids 33 in order to generate counter-thrust. It would also be possible to provide shutter flaps configured to deploy radially in the secondary flow path 21B in order to further direct the secondary flow 20B towards the deflection grids 33.

[0103] The front structure 31 is generally called the "front frame" of the thrust reverser 30 and the rear structure 32 is called the "rear frame" of the thrust reverser 30.

[0104] In the example of Figure 4, the nacelle 2 further comprises a thrust reverser 30 known as a fixed-grid thrust reverser comprising a fixed front grid support structure 31 secured to the front section 13 of the nacelle and a fixed rear grid support structure 32.

[0105] The thrust reverser 30 further comprises a plurality of deflection grids 33 extending between the front grid support structure 31 and the rear grid support structure 32.

[0106] The front grille support structure 31 and the rear grille support structure 32 are preferably semi-cylindrical frames on which the deflection grilles 33 are fixed.

[0107] The front grille support structure 31 and the rear grille support structure 32 are fixed relative to each other.

[0108] The sliding cover 34 is intended to slide in order to close the axial clearance J1 in a direct thrust configuration.

[0109] As illustrated in detail in FIGS. 5 and 5A, the thrust reverser 30 comprises transport equipment 40, or “Ground Support Equipment” in English terms, intended to be mounted on the thrust reverser during ground operations, for example, maintenance or transport of the thrust reverser.

[0110] Thus, the transport tool 40 is temporarily mounted on the thrust reverser, in place of the flow deflection grids, and connects the front frame 31 and the rear frame 32.

[0111] By "temporarily mounted" is meant an element connecting the fixed frame 31 and the rear frame 32 for a limited duration, for example during transport of the propulsion unit 1 and / or its storage.

[0112] When assembling the deflection grids on the thrust reverser 30, the transport tooling 40 is removed and the deflection grids replace said transport tooling 40 to in turn connect the front frame 31 and the rear frame 32 of the thrust reverser 30.

[0113] In the absence of deflection grids, the transport tool 40 makes it possible to take up the mechanical forces during the transport of the thrust reverser 30.

[0114] As illustrated in detail in Figures 6 and 7, the transport tool 40 comprises two main parts 41, 42 extending along a longitudinal axis X and connected to each other by a first articulation 43. The first articulation 43 allows rotation between the first main part 41 and the second main part 42 around a transverse axis Y, perpendicular to the longitudinal axis X.

[0115] Each main part 41, 42 extending along the longitudinal axis X parallel to the longitudinal extension axis A1 in a position mounted on the thrust reverser 30.

[0116] The main parts 41, 42 are made of metallic material, for example stainless steel or composite material.

[0117] As illustrated, the first articulation 43 is, in a non-limiting manner, a hinge comprising a rotation axis 43a secured to the main parts 41, 42.

[0118] Alternatively, one could provide a number of main parts greater than two, for example three main parts successively connected by joints.

[0119] It could also be provided that the transport tool 40 comprises a single main part.

[0120] The transport tool 40 further comprises a signaling blade 44 connected to the second main part 42 by a second articulation 45. The second articulation 45 allows rotation between the signaling blade 44 and the second main part 42 around a transverse axis Y, perpendicular to the longitudinal axis X.

[0121] Generally, second articulation 45 allows rotation between the signaling blade 44 and the second main part 42 around a second axis inclined relative to a first axis.

[0122] As illustrated, the second articulation 45 is, in a non-limiting manner, a hinge comprising a rotation axis 45a secured to the second main part 42 and the signaling blade 44.

[0123] In the example illustrated, the transport tool 40 comprises support yokes 46, 47 on which the first and second articulations 43, 45 are mounted respectively.

[0124] The first yoke 46 comprises a first part 46a secured to the first main part 41 and a second part 46b secured to the second main part 42. The two parts 46a, 46b are connected to each other by the first hinge 43.

[0125] The second yoke 47 comprises a first part 47a secured to the second main part 42 and a second part 47b secured to the signaling blade 44. The two parts 47a, 47b are connected to each other by the second hinge 45.

[0126] Alternatively, it could be provided that the transport tool 40 is devoid of such yokes 46, 47 and to directly mount the articulations 43, 45 respectively on the main parts 41, 42 and the signaling blade 44.

[0127] The transport tool 40 further comprises a member 48 for fixing to the front frame 31, such as for example a screw, secured to the signaling blade 44 and the second main part 42.

[0128] The member 48 for fixing to the front frame 31 extends perpendicular to the extension axis X of the second main part 42 in the position of use.

[0129] The second part 47b of the second yoke 47 comprises a bore (not shown) for receiving the fixing member 48 to the front frame 31.

[0130] The transport tool 40 further comprises a member 49 for fixing to the rear frame 32, such as for example here a screw, secured to the first main part 41.

[0131] The member 49 for fixing to the rear frame 32 extends perpendicularly to the extension axis of the first main part 41. The fixing members here are screws, but other reversible fixing members could be envisaged, such as bolts, ball pins or any member allowing reversible assembly.

[0132] By "reversible" is meant something that can be removed, and in particular something that can be dismantled without damage. Reversible fasteners are therefore means of attachment that can be removed and then reused, in this case to connect the front frame and the rear frame of the thrust reverser.

[0133] The transport tool 40 further comprises a member 50 for holding the first articulation 43 in position in a position of use in which the main parts 41, 42 are in the extension of one another. The member 50 for holding in position extends parallel to the longitudinal axis X and is configured to block the first articulation 43 in the position of use.

[0134] Thus, the first articulation 43 is immobilized by the member 50 for holding it in position in the position of use.

[0135] The position holding member 50 is for example a screw.

[0136] The first part 46a and the second part 46b of the first yoke 46 each comprise a longitudinal housing 46c, 46d extending in the extension of one another, in the position of use, and intended to receive the member 50 for holding in position.

[0137] The transport tool 40 is movable between a position of use in which the first main part 41 is in the extension of the second main part 42 along the longitudinal axis X and in which the signaling blade 44 extends perpendicular to the main parts 41, 42 and a storage position in which the first main part 41 is articulated relative to the second main part 42 around the first articulation 43 until it comes under the second main part 42 and the signaling blade 44 is articulated relative to the second main part 42 around the second articulation 45 towards the first articulation 43.

[0138] As illustrated, the signaling blade 44 comprises a first fixing portion 44a secured to the second articulation 45, directly or indirectly via the yoke 47, a second portion 44b extending perpendicularly from the first portion 44a, a succession of portions 44c, 44d, 44e, for example folded, here three in number, extending from the second portion 44b and an end portion 44f substantially parallel to the second portion 44b.

[0139] The first fixing portion 44a comprises a drilling 44g for receiving the fixing member 48 on the front frame 31.

[0140] Alternatively, a different number of stamped portions could be provided between the first fixing portion 44a and the end portion 44f.

[0141] In the use position, the end portion 44f extends beyond the thrust reverser so as to be visible from the outside.

[0142] The signal blade 44 is made of metallic material, for example stainless steel or plastic material, for example composite material.

[0143] For example, the signal blade 44 could be made from a metal blade on which a heat-shrinkable sheath is arranged, for example in a bright color, such as red.

[0144] Due to the fact that the fixing member 48 to the front frame 31 is integral with the signaling blade 44, the signaling blade 44 is necessarily in the position of use when the fixing member 48 to the front frame 31 is integral with the front frame 31.

[0145] As illustrated and in no way limiting, the transport tool 40 comprises two plates 51, 52 respectively arranged under each of the main parts 41, 42 at the level of the fixing member 48, 49. These plates 51, 52 make it possible not to damage the frames 31, 32 of the thrust reverser 30 in the position of use of the transport tool 40.

[0146] The plates 51, 52 may, for example, be made of synthetic material, such as polyamide (PA).

[0147] Any other low adhesion material can be used for plates 51, 52.

[0148] In the example illustrated, the transport tool 40 comprises a third yoke 53 for supporting the fixing member 49 to the rear frame 32.

[0149] The third yoke 53 is integral with the first main part 41 and comprises a hole (not shown) for receiving the fixing member 49 to the rear frame 32.

[0150] Alternatively, it could be provided that the transport tool 40 is devoid of such a third yoke 53 and to directly mount the fixing member 49 to the rear frame 32 on the first main part 41.

[0151] The yokes 46, 47, 53 may, for example, be made of synthetic material, such as polyamide (PA), or of metallic material.

[0152] In order to install the transport tool 40 on the thrust reverser 30, the transport tool 40 is manipulated into its position of use in which the main parts 41, 42 are aligned, clamp the first articulation 43 by tightening the position-holding member 50, positioning the transport tool 40 on the front 31 and rear 32 frames of the thrust reverser 30 and tightening the respective fixing members 48, 49.

[0153] In the example illustrated, the thrust reverser 30 comprises a single transport tool 40. Alternatively, it could be provided that the thrust reverser 30 comprises a number greater than or equal to two transport tools 40, spaced circumferentially from each other regularly or not.

[0154] As illustrated in Figure 8, a packaging assembly 60 comprises a plurality of housings 61, here four in number, each intended to receive a transport tool 40 as described previously, in the storage position.

[0155] The 40 transport tool is configured to be used on a large number of thrust reversers, which allows for the sharing of parts and consequently a gain in productivity and production costs.

[0156] Furthermore, thanks to the viewing blade which is necessarily deployed when fixing the transport tooling on the front frame of the thrust reverser, the transport tooling is visible from outside the nacelle from all angles, which allows it to be detected and consequently avoids any oversights when installing the deflection grids.

[0157] Finally, such transport equipment is compact and lightweight, for example weighing less than or equal to 12 kg so that it can be handled by a single person, while being able to be attached to the thrust reverser without damaging it.

Claims

CLAIMS 1. Transport tool (40) configured to be temporarily mounted on a thrust reverser (30) of a nacelle (2) of an aircraft turbojet engine of a propulsion unit (1), said tool (40) being intended to connect a front frame (31) and a rear frame (32), integral with each other, characterized in that the transport tool (40) comprises: - at least one main part (41, 42) extending along a first axis (X); and - at least one signaling blade (44) connected to the main part (42) by a second articulation (45) comprising a second axis of rotation (45a) and extending in a position of use along a second axis (Y) inclined relative to the first axis (X), the transport tool (40) being movable between the position of use and a storage position in which the signaling blade (44) is articulated relative to the main part (42) around the second articulation (45) towards the main part (42).

2. Transport tool (40) according to claim 1, further comprising a member (48) for fixing to the front frame (31), integral with the signaling blade (44) and the main part (42).

3. Transport tool (40) according to any one of the preceding claims, further comprising a member (49) for fixing to the rear frame (32), integral with the main part (41).

4. Transport tool (40) according to any one of the preceding claims, in which the signaling blade (44) comprises a first fixing portion (44a) integral with the second articulation (45), a second portion (44b) extending perpendicularly from the first portion (44a), a succession of portions (44c, 44d, 44e) extending from the second portion (44b) and an end portion (44f) substantially parallel to the second portion (44b).

5. Transport tool (40) according to any one of the preceding claims, in which the main part comprises at least two main parts (41, 42) extending along the first axis (X) and connected to each other by a first articulation (43) comprising a first axis of rotation (43a) around the second axis (Y), perpendicular to the first axis (X); and in which the signaling blade (44) is connected to the second main part (42) by the second articulation (45), the transport tool (40) being movable between a position of use in which the first main part (41) is in the extension of the second main part (42) along the first axis (X) and a storage position in which the first main part (41) is articulated relative to the second main part (42) around the first articulation (43) until it comes under the second main part (42).

6. Transport tool (40) according to claim 5, further comprising a member (50) for holding the first articulation (43) in position in the position of use in which the main parts (41, 42) are in the extension of one another, the member (50) for holding in position extending parallel to the first axis (X) and is configured to block the first articulation (43) in the position of use.

7. Transport tool (40) according to claim 5 or 6, comprising support yokes (46, 47) on which the first and second articulations (43, 45) are mounted respectively, the first yoke (46) comprising a first part (46a) integral with the first main part (41) and a second part (46b) integral with the second main part (42) and connected to the first part (46a) by the first articulation (43), the second yoke (47) comprising a first part (47a) integral with the second main part (42) and a second part (47b) integral with the signaling blade (44) and connected to the first part (47a) by the second articulation (45).

8. Transport tool (40) according to claims 6 and 7, in which the first part (46a) and the second part (46b) of the first yoke (46) each comprise a longitudinal housing (46c, 46d) extending in the extension of one another, in the position of use, and intended to receive the member (50) for holding in position.

9. Thrust reverser (30) comprising a front frame (31) and a rear frame (32) fixed relative to the front frame (31) and at least one transport tool (40) according to any one of claims 1 to 8, temporarily connecting the front frame (31) and the rear frame (32), in the position of use, the signaling blade (44) comprising an end portion (44f) extending beyond the thrust reverser.

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