Arrangement for the temporary fixing of a hose on a motor vehicle.

Abstract

Arrangement (50) for the temporary attachment of a hose of a motor vehicle. Arrangement (50) for the temporary attachment of a hose of a motor vehicle, comprising - an engine, - a given part (52) attached to the engine, intended to provide areas for the permanent attachment (522) of motor vehicle components on or near the engine, characterized in that the given part (52) further comprises a temporary attachment area (521) for a first hose (53), the first hose (53) being mounted on the temporary attachment area (521) by bringing at least one point of an outer surface (531) of the first hose (53) into contact with a given surface (5212) of the temporary attachment area (521). Figure for the abstract: 3

Description

Title of the invention: Arrangement for the temporary fixing of a hose of a motor vehicle.

[0001] The invention relates to an arrangement for the temporary fastening of a hose on a motor vehicle. The invention also relates to a method for assembling a motor vehicle comprising such an arrangement.

[0002] A motor vehicle assembly line implements a series of successive assembly steps. Some assembly steps require the implementation of means to protect components already mounted on the vehicle. In particular, when a mounting plate is positioned under the vehicle body, certain components fixed to the body may come into contact with components fixed to the mounting plate.

[0003] Solutions are known to avoid this risk. For example, pipes can be protected by packaging, then unwrapped after the mounting plate has been attached to the crate. Other solutions require the use of specific, dedicated tools, which are then removed after the mounting plate has been attached.

[0004] However, existing solutions have drawbacks. For example, they entail additional financial costs and / or additional handling time costs.

[0005] The object of the invention is to provide an arrangement for the temporary fastening of a pipe and a method for mounting a motor vehicle equipped with such an arrangement, remedying the above-mentioned drawbacks and improving upon arrangements and methods known in the prior art. In particular, the invention makes it possible to implement an arrangement and a method that are simple and reliable and that facilitate the mounting of the vehicle.

[0006] To this end, the invention relates to an arrangement for the temporary fixing of a hose of a motor vehicle, comprising - an engine, - a given part fixed to the engine, intended to provide areas for the permanent fixing of elements of the motor vehicle on or near the engine, the given part further comprising a transitional fixing area for a first hose, the mounting of the first hose on the transitional fixing area being achieved by bringing at least one point of an external surface of the first hose into contact with a given surface of the transitional fixing area.

[0007] In one embodiment, the first pipe is made of elastic material, in particular rubber, and a shape of the first pipe is moldable so as to maintain contact between at least one point of the surface of the pipe and the given surface of the transient fixing zone.

[0008] In one embodiment, the transitional fixing zone is substantially in the shape of a hook, and the given surface of the transitional fixing zone is an internal border of the hook defining a location suitable for keeping the first pipe in contact with the transitional fixing zone.

[0009] In one embodiment, the inner edge of the hook is substantially in the shape of a circular arc, in particular a radius of the circular arc formed by the inner edge of the hook is substantially the same dimension as a radius of a section of the first pipe.

[0010] In one embodiment, the arrangement includes a second pipe attached to the first pipe, the second pipe being in contact with the transitional attachment zone, or the second pipe not being in contact with the transitional attachment zone.

[0011] The invention also relates to an assembly comprising: - a first arrangement according to the invention, the first arrangement being fixed to a first mounting structure of a motor vehicle assembly line, - a second arrangement comprising a motor vehicle body, and at least one piece of motor vehicle equipment fixed to the body, the second arrangement being fixed to a second mounting structure of a motor vehicle assembly line, the first and second structures being arranged so that mounting the first arrangement on the second arrangement is feasible by a relative displacement in a given direction, in particular vertical, from the first structure to the second structure and / or from the second structure to the first structure, Furthermore, during a relative displacement, in the given direction, from the first structure to the second structure and / or from the second structure to the first structure, a first distance measured between the first pipe positioned on the transitional fixing area and the second arrangement is strictly greater than a distance threshold, in particular the distance threshold being equal to 10 millimeters, or even the distance threshold being greater than or equal to 15 millimeters.

[0012] In an embodiment of the assembly, during a relative displacement, along the given direction, of the first structure towards the second structure and / or of the second structure towards the first structure, a second distance measured between the second pipe and the second arrangement is strictly greater than a distance threshold, in particular the distance threshold being equal to 10 millimeters or even the distance threshold being greater than or equal to 15 millimeters.

[0013] The invention further relates to a method for assembling a motor vehicle comprising a first arrangement according to the invention, and a second arrangement comprising a body of the motor vehicle, and at least one piece of equipment of the motor vehicle fixed to the body, the process comprising: - a step of fixing the given part of the first arrangement onto the engine of the first arrangement, - a step of temporarily fixing the first pipe of the first arrangement onto the temporary fixing zone of the given part of the first arrangement, then - a relative displacement step along the given direction of the first arrangement and the second arrangement so as to insert at least a part of the first arrangement into the second arrangement, then - a step of removing the transient fixation between the first pipe of the first arrangement and the transient fixation zone of the first arrangement, the transient fixation step consisting of bringing at least one point of a surface of the first pipe into contact with the given surface of the transient fixation zone of the first arrangement, and the fastening removal step consisting of removing the contact of at least one point of a surface of the first pipe with the given surface of the transitional fastening area of ​​the fastening part of the first arrangement.

[0014] In one embodiment, the assembly method includes, following the step of removing the temporary attachment between the first pipe of the first arrangement and the attachment surface of the first arrangement, a step of attaching the first pipe to a permanent attachment area of ​​the motor vehicle, in particular a permanent attachment area of ​​the second arrangement.

[0015] In one embodiment, the second arrangement includes a water radiator, and the method includes a step of connecting the first pipe to the water radiator.

[0016] In one embodiment, the engine of the first arrangement is fixed to a plate on a motor vehicle assembly line, and the body of the second arrangement is suspended from a swing arm on the motor vehicle assembly line. Furthermore, the relative movement of the first and second arrangements is achieved by a relative movement, in a vertical direction, from the plate to the swing arm and / or from the swing arm to the plate.

[0017] The attached drawing represents, by way of example, an embodiment of an arrangement for a motor vehicle according to the invention and an execution of a method for assembling a vehicle comprising an arrangement according to the invention.

[0018] Fig. 1 represents a motor vehicle equipped with an arrangement according to the invention.

[0019] The [Fig.2] defines an orthonormal frame of reference of the motor vehicle.

[0020] Fig. 3 is a first perspective view of a given part of a first arrangement according to the invention.

[0021] Fig. 4 is a second perspective view of a given part of a first arrangement according to the invention.

[0022] Fig. 5 is a first view of a temporary fixing zone of a given part of an arrangement according to the invention.

[0023] The [Fig.6] is a second view of a transient fixing zone of a given part of an arrangement according to the invention.

[0024] Fig. 7 is a first view of a first and a second arrangement according to the invention.

[0025] Fig. 8 is a second view of a first and second arrangement according to the invention.

[0026] Fig. 9 is a third view of a first and second arrangement according to the invention.

[0027] The [Fig. 10] is a fourth view of a first and a second arrangement according to the invention.

[0028] Fig. 11 is a fifth view of a first and a second arrangement according to the invention.

[0029] The [Fig. 12] is a flowchart of a method for assembling a vehicle equipped with a first and a second arrangement according to the invention.

[0030] An example of a motor vehicle 100 equipped with a first arrangement 50 according to the invention is described below with reference to [Fig. 1]. The motor vehicle 100 is a motor vehicle of any type, in particular a passenger car or a commercial vehicle. The motor vehicle 100 may be equipped with a thermal and / or electric motor 51.

[0031] In the remainder of the document, the figures are defined with reference to a direct orthonormal coordinate system (X, Y, Z) represented by [Fig.2], the X axis being parallel to the longitudinal axis of the motor vehicle 100 and oriented towards the rear of the motor vehicle 100, and the Z axis being vertical and oriented towards the top of the vehicle.

[0032] The first arrangement 50 according to the invention comprises - a 51 engine, - a given part 52 fixed to the engine 51, intended to provide areas for the durable attachment 522 of motor vehicle components to or near the engine 51, the given part 52 further comprising a temporary fixing zone 521 for a first pipe 53, an assembly of the first pipe 53 on the transitional fixing zone 521 being achieved by bringing at least one point of an external surface 531 of the first pipe 53 into contact with a given surface 5212 of the transitional fixing zone 521.

[0033] One embodiment of the given part 52 is illustrated in Figures 3 and 4. In this embodiment, the given part 52 is a thin part, made for example of sheet metal, comprising a set of surfaces that can be arranged in different planes. The given part 52 can be made in one piece, in particular by stamping and / or bending. Alternatively, the given part 52 can be made by assembling several parts.

[0034] In the described embodiment, at least one surface of the given part 52 includes a fixing area of ​​the given part 52 on the motor 51.

[0035] Advantageously, the transitional attachment area 521 is made on an existing part of the motor vehicle, in particular a part acting as a multi-function support.

[0036] Durable fixing areas 522, in particular holes intended, for example, to receive fixing screws, are arranged on surfaces of the set of surfaces. For example, the given part 52 can provide durable fixing areas 522 for cables or various pipes.

[0037] The given part 52 further includes a temporary attachment area 521 for temporarily attaching at least one hose of the motor vehicle 100 to or near the engine 51.

[0038] In the remainder of the document, the terms “permanent fixation” and “transitional fixation” are used to describe two distinct types of fixation mode.

[0039] The term "durable fastening" refers to a fastening designed to last over time. Advantageously, a "durable fastening" is achieved by at least one means of connection capable of withstanding vibrations or shocks. In addition to or alternatively, the installation of the means of connection implementing a durable fastening requires the use of at least one tool, for example, a screwdriver.

[0040] The term “transitional fixing” refers to a fixing advantageously designed to be easily implemented and then easily undone.

[0041] A step of temporary fastening between two elements is followed by a step in which the temporary fastening between the two elements is undone. In other words, a temporary fastening is a fastening that is not intended to be permanent. Therefore, a temporary fastening is achieved by means of a connection that is easily removable. Advantageously, a temporary fastening is removable without the need for tools.

[0042] In the remainder of the document, the term "permanent fastening zone 63" refers to an area of ​​the vehicle comprising means for implementing a permanent fastening.

[0043] In the remainder of the document, the term "transitional fastening zone 521" refers to an area of ​​the vehicle comprising means for implementing a transitional fastening.

[0044] In the first arrangement 50 according to the invention, the temporary fastening is achieved by mounting the first pipe 53 on the temporary fastening area 521. In the embodiment presented, the temporary fastening of the first pipe 53 on the given part 52 consists of bringing at least one point of a surface of the first pipe 53 into contact with the given surface 5212 of the temporary fastening area 521 of the first arrangement 50. Furthermore, removing the temporary fastening consists of removing the contact of at least one point of a surface of the first pipe 53 with the given surface 5212 of the temporary fastening area 521 of the fastening part of the first arrangement 50.

[0045] In an embodiment illustrated by Figures 5 and 6, the transitional fixing zone 521 is substantially shaped like a hook 5211. Furthermore, the given surface 5212 of the transitional fixing zone 521, which is in contact with at least one point on the surface of the first pipe 53, is an internal edge 5212 of the hook 5211 defining a location suitable for maintaining the pipe in contact with the transitional fixing zone 521. The at least one point of contact between the pipe and the transitional fixing zone 521 is arranged so as to prevent movement of the pipe relative to the internal edge 5212 of the hook 5211 in at least one direction.

[0046] Various embodiments of the inner edge 5212 of the hook 5211 are conceivable. Advantageously, the inner edge 5212 of the hook 5211 allows for at least two points of contact with the surface of the first pipe 53, the at least two points of contact being arranged so as to prevent movement of the pipe relative to the inner edge 5212 of the hook 5211 in at least two distinct directions.

[0047] In a particularly advantageous embodiment, the inner edge 5212 of the hook 5211 is substantially in the shape of a circular arc, in particular a radius of the circular arc formed by the inner edge 5212 of the hook 5211 is substantially the same dimension as a radius of a cross-section of the first pipe 53. This embodiment of the inner edge 5212 thus makes it possible to implement a plurality of contact points between the inner edge 5212 of the hook 5211 and an external surface of the pipe. Thus, a pipe placed in the hook 5211 is held in place by the inner edge 5212 of the hook 5211.

[0048] Furthermore, the first pipe 53 can be made of an elastic material, in particular rubber. A shape of the first pipe 53 can thus be molded so as to maintain contact between at least one point on the surface of the pipe and the given surface 5212 of the temporary attachment zone 521. In other words, the first pipe 53 is suitable for shaping to hold itself more securely against the inner surface of the hook 5211.

[0049] In one embodiment, the first arrangement 50 may include a second pipe 54 attached to the first pipe 53. The second pipe 54 may be attached to the first pipe 53 by a link, in particular a metal or plastic link. Preferably, the link connecting the two pipes is located on a portion of the first pipe 53 intended to be disposed in the hook 5211 of the temporary attachment zone 521. In an alternative embodiment, the two pipes may be joined by a plurality of links at several points along their length. The two pipes thus joined may extend parallel to each other along a portion of their length.

[0050] Mounting the first pipe 53 on the temporary fixing zone 521 then allows the second pipe 54 to be fixed in the temporary fixing zone 521 or near the temporary fixing zone 521. The second pipe 54 can be fixed directly or indirectly to the temporary fixing zone 521. In other words, the second pipe 54 can be in contact with the temporary fixing zone 521 or the second pipe 54 can have no point of contact with the temporary fixing zone 521.

[0051] In one embodiment, the motor vehicle comprises an assembly comprising - the first arrangement 50, which is fixed to a first assembly structure 80 of a motor vehicle assembly line, - a second arrangement 60 comprising a body 61 of the motor vehicle, and at least one piece of equipment 62 of the motor vehicle fixed to the body 61, the second arrangement 60 being fixed to a second assembly structure 90 of an assembly line of the motor vehicle.

[0052] In one embodiment, the first structure 80 is a plate of an assembly line of the motor vehicle on which the engine 51 of the first arrangement 50 is fixed and the second structure 90 is a swing from which the body 61 of the second arrangement 60 is suspended, and the given direction of the relative movement of the plate towards the swing and / or of the swing towards the plate is vertical.

[0053] The body 61 of the motor vehicle is suspended from a swing arm on the assembly line, allowing it to move along the line. A mounting plate is a structure on which vehicle components are assembled, including underbody parts of the motor vehicle, such as the motor vehicle's engine 51. When the mounting plate is positioned on the body 61, precise positioning of the plate relative to the body 61 is achieved by means of assembly line guidance mechanisms.

[0054] The first and second structures 80, 90 are arranged so that mounting the first arrangement 50 onto the second arrangement 60 is possible by a relative displacement along a given direction, in particular vertical, of the first structure 80 to the second structure 90 and / or from the second structure 90 to the first structure 80. In other words, the plate and the swing are arranged so that a vertical movement of the plate to the swing (or vice versa) implements a docking maneuver of the plate on the body 61 or vice versa, thus allowing a mounting of the motor 51 of the first arrangement 50 on the body 61 of the second arrangement 60.

[0055] In the remainder of the document, the relative movement in a given direction, in particular vertical, of the first structure 80 towards the second structure 90 and / or of the second structure 90 towards the first structure 80 is referred to as "docking maneuver".

[0056] In one embodiment, at least one component 62 of the second arrangement 60 is attached directly or indirectly to the body 61 of the motor vehicle. In one embodiment, the at least one component 62 attached to the body 61 may be, for example, a side member of the vehicle, or a part attached to the side member, or a sheet metal part directly or indirectly attached to the body 61. In one embodiment, a plurality of components 62 are attached directly or indirectly to the body 61. The plurality of components 62 defines a volume that may interfere with the first arrangement 50 during the docking maneuver.

[0057] Advantageously, the assembly according to the invention is defined such that, during a berthing maneuver, a first distance dl measured between the first pipe 53 positioned on the temporary attachment zone 521 and the second arrangement 60 is strictly greater than a distance threshold d_min, in particular the distance threshold d_min being equal to 10 millimeters, or even the distance threshold d_min being equal to 15 millimeters. The first distance dl varies continuously during the berthing maneuver. At each given instant of the berthing maneuver, the first distance dl is determined to be the length of the shortest segment connecting a point on the first pipe 53 and a point on the second arrangement 60 closest to the second pipe 54. The assembly according to the invention is defined such that, at each given instant of the berthing maneuver, the first distance dl is greater than the distance threshold d_min.

[0058] Furthermore, in an embodiment where a second pipe 54 is attached to the first pipe 53, a second distance d2 measured between the second pipe 54 and the second arrangement 60 is strictly greater than a minimum distance threshold d_min, in particular the minimum distance threshold d_min being equal to 10 millimeters or even the minimum distance threshold d_min being greater than or equal to 15 millimeters. The second distance d2 varies continuously during the docking maneuver. At each given instant of the docking maneuver, the second distance d2 is determined to be the length of the shortest segment connecting a point on the second pipe 54 and a point of the second arrangement 60 closest to the second pipe 54. The assembly according to the invention is defined so that, at each given instant of the docking maneuver, the second distance d2 is greater than the distance threshold d_min.

[0059] Indeed, the positioning of the first pipe 53 on the temporary attachment zone 521 aims to keep the first pipe 53, and optionally a second pipe 54 attached to the first pipe 53, away from the elements composing the second arrangement 60, throughout the entire docking maneuver. Such positioning of the first pipe 53 (and optionally of a second pipe 54 attached to the first pipe 53) prevents the pipe(s) from being damaged during the docking maneuver.

[0060] To this end, the temporary fixing zone 521 includes means for defining a precise position of the first pipe 53 relative to the motor 51. In an embodiment more specifically represented by Figures 5 and 6, a tab 5213 connecting the hook 5211 to the rest of the given part 52 allows a position of the pipe to be adjusted along the vertical axis Z of the motor vehicle 100. In addition, a lateral portion of the inner edge 5212 of the hook 5211 allows a position of the pipe to be adjusted along the lateral axis Y of the motor vehicle 100.

[0061] In an embodiment of a first and second arrangement 50, 60 described in Figures 7 to 9, the first arrangement 50 comprises a first and a second pipe 53, 54 connected to each other. The first and second pipes 53, 54 are intended to allow water circulation for the thermal management of the engine 51. After the docking maneuver, the pipes are therefore intended to be fixed near a water radiator 64 forming part of the second arrangement 60.

[0062] In figures 8 and 9, the first and second arrangements 50, 60 are shown in a position they have reached after the docking maneuver, and possibly after connection of the pipes to the water radiator 64.

[0063] Fig. 7 illustrates positions P1, P2, P3 which the first and second pipes 53, 54 occupy successively.

[0064] Before the docking maneuver of the plate on the body 61, the first and second pipes 53, 54 occupy a first position PL In an embodiment represented by [Fig.7], the first and second pipes 53, 54 are then arranged near the engine, in a first zone located substantially on the trajectory of the plate.

[0065] Then, during the docking maneuver, the first and second pipes 53, 54 occupy a second position P2 determined by the fixing of the pipes on the transitional fixing zone 521 of the first arrangement 50.

[0066] Figures 10 and 11 illustrate more particularly the second position P2, [Fig. 10] providing a top view of the first arrangement 50, and [Fig. 11] providing a side view of the first arrangement 50. The first and second pipes 53, 54 are fixed to each other by a link, only the first pipe 53 being in contact with the temporary fixing area.

[0067] Fig. 10 illustrates the compactness of the first arrangement 50 when the arranged pipes are fixed to the temporary fixing area.

[0068] Fig. 10 further illustrates a distance separating the pipes from the sheet metal parts fixed to the body 61 of the vehicle, the sheet metal parts being part of the second arrangement 60, and the sheet metal parts being an element likely to damage the pipes if they are located too close to the pipes.

[0069] Then, after the berthing maneuver, the first and second pipes 53, 54 occupy a third position P3 located substantially near the first position PL. In one embodiment, the third position of the pipes is defined by fixing the pipes on a durable fixing zone 63 of the second arrangement 60.

[0070] An embodiment of a method for assembling a motor vehicle comprising a first arrangement 50 according to the invention and a second arrangement 60 comprising a body 61 of the motor vehicle, and at least one piece of equipment 62 of the motor vehicle attached to the body 61 is described below with reference to [Fig. 12].

[0071] In the embodiment presented, the assembly process comprises six steps E1 to E6 which are executed successively.

[0072] In the first step 11, the engine of the first arrangement 50 is fixed to a first mounting structure 80 of a motor vehicle assembly line, in particular a plate of a motor vehicle assembly line. Furthermore, the second arrangement 60, comprising the vehicle body 61 and at least one piece of equipment 62 of the motor vehicle, is fixed to a second mounting structure 90 of a motor vehicle assembly line, in particular a swing arm of a motor vehicle assembly line.

[0073] In the first step El, the given part 52 of the first arrangement 50 is fixed to the motor of the first arrangement 50. In one embodiment, the first pipe 53 of the first arrangement 50, and optionally the second pipe 54 of the first arrangement 50, are arranged near the given part 52.

[0074] In the second step E2, the first pipe 53 of the first arrangement 50, and optionally the second pipe 54 of the first arrangement 50, are temporarily fixed to the temporary fixing area 521 of the given part 52 of the first arrangement 50. For this purpose, at least one point of the outer surface 531 of the first pipe 53 is brought into contact with the given surface 5212 of the temporary fixing area 521 of the given part 52. Optionally, in the second step E2, the first pipe 53, and possibly the second pipe 54, can be deformed to facilitate the retention of the first pipe 53 against the given surface 5212.

[0075] In the third step E3, the first arrangement 50 is moved relative to the second arrangement 60 in the given direction, so as to insert at least a part of the first arrangement 50 into the second arrangement 60.

[0076] In one embodiment, the engine of the first arrangement 50 is fixed to a plate of an assembly line of the motor vehicle and the body 61 of the second arrangement 60 is suspended from a swing of the assembly line of the motor vehicle, and the relative movement step of the first arrangement 50 and the second arrangement 60 is implemented by a relative movement, in a vertical direction, of the plate to the swing and / or of the swing to the plate.

[0077] In the fourth step E4, the transitional fixing between the first pipe 53 of the first arrangement 50 and the transitional fixing zone 521 of the first arrangement 50 is removed. For this, the contact of at least one point of a surface of the first pipe 53 with the given surface 5212 of the transitional fixing zone 521 of the fixing part of the first arrangement 50 is removed.

[0078] In the fifth step E5, the first pipe 53 is fixed to a durable fixing area 63 of the motor vehicle, in particular a durable fixing area 63 of the second arrangement 60.

[0079] In the sixth step E6, the first pipe 53 is connected to a water radiator 64 of the second arrangement 60.

[0080] Thus, during the assembly of the motor vehicle, the arrangement according to the invention provides a simple means of temporarily positioning a pipe of the vehicle so as to prevent degradation of the pipe by sheet metal parts which would come into contact with the pipe.

[0081] Advantageously, the arrangement according to the invention can be implemented simply by modifying an existing part, thereby limiting costs. The integration of the temporary attachment zone 521 is carried out on an existing part intended to remain in the vehicle, thus reducing costs since operators do not need to remove the part after use. Furthermore, compared to a solution that would require removing a part after use, production quality control is improved since there is no longer any possibility of forgetting to remove a part.

[0082] Furthermore, the arrangement according to the invention requires no tools to temporarily fix a pipe to the temporary fixing area 521; likewise, the arrangement according to the invention requires no tools to remove a pipe from the temporary fixing area 521. Consequently, this reduces costs compared to a solution that would require the use of a tool, in particular the costs of supplying or recycling a tool. Assembly time is also reduced, due to the simplicity of the solution implemented by the invention.

Claims

Demands

1. Arrangement (50) for temporary attachment of a hose of a motor vehicle, comprising - an engine, - a given part (52) attached to the engine, intended to provide areas for the permanent attachment (522) of elements of the motor vehicle on or near the engine, characterized in that the given part (52) further comprises a transitional attachment area (521) for a first hose (53), mounting of the first hose (53) on the transitional attachment area (521) being effected by bringing at least one point of an outer surface (531) of the first hose (53) into contact with a given surface (5212) of the transitional attachment area (521).

2. Arrangement (50) according to the preceding claim, characterized in that the first pipe (53) is made of elastic material, in particular rubber, and in that a shape of the first pipe (53) is moldable so as to maintain contact between at least one point of the surface of the pipe and the given surface (5212) of the transitional fixing zone (521).

3. Arrangement (50) according to any one of the preceding claims, characterized in that the transitional fixing zone (521) is substantially in the shape of a hook (5211), and in that the given surface (5212) of the transitional fixing zone (521) is an internal border (5212) of the hook (5211) defining a location suitable for keeping the first pipe (53) in contact with the transitional fixing zone (521).

4. Arrangement (50) according to the preceding claim, characterized in that the inner edge (5212) of the hook (5211) has substantially the shape of an arc of a circle, in particular a radius of the arc of a circle formed by the inner edge (5212) of the hook (5211) is substantially the same dimension as a radius of a section of the first pipe (53).

5. Arrangement (50) according to any one of the preceding claims, characterized in that it comprises a second pipe (54) attached to the first pipe (53), the second pipe (54) being in contact with the transitional attachment zone (521), or the second pipe (54) not being in contact with the transitional attachment zone (521).

6. Assembly (70) comprising - a first arrangement (50) according to any one of the preceding claims, the first arrangement (50) being fixed to a first assembly structure (80) of a motor vehicle assembly line, - a second arrangement (60) comprising a body (61) of the motor vehicle, and at least one piece of equipment (62) of the motor vehicle fixed to the body (61), the second arrangement (60) being fixed to a second assembly structure (90) of a motor vehicle assembly line, the first and second structures (80, 90) being arranged such that mounting the first arrangement (50) onto the second arrangement (60) is achievable by a relative displacement in a given direction, in particular vertical, from the first structure (80) to the second structure (90) and / or from the second structure (90) to the first structure (80), the assembly being characterized in that, during a relative displacement, in the given direction,from the first structure (80) to the second structure (90) and / or from the second structure (90) to the first structure (80), a first distance (dl) measured between the first pipe (53) positioned on the temporary fixing zone (521) and the second arrangement (60) is strictly greater than a distance threshold (d_min), in particular the distance threshold (d_min) being equal to 10 millimeters, or even the distance threshold (d_min) being greater than or equal to 15 millimeters.

7. Assembly according to the preceding claim comprising a first arrangement (50) according to claim 5, the assembly being characterized in that, during a relative displacement, in the given direction, of the first structure (80) towards the second structure (90) and / or of the second structure (90) towards the first structure (80), a second distance (d2) measured between the second pipe (54) and the second arrangement (60) is strictly greater than a distance threshold (d_min), in particular the distance threshold (d_min) being equal to 10 millimeters or even the distance threshold (d_min) being greater than or equal to 15 millimeters.

8. A method for assembling a motor vehicle comprising a first arrangement (50) according to any one of claims 1 to 5, and a second arrangement (60) comprising a body (61) of the vehicle automobile, and at least one piece of equipment (62) of the motor vehicle fixed to the body (61), characterized in that it comprises - a step of fixing the given part (52) of the first arrangement (50) onto the motor (51) of the first arrangement (50), - a step of temporarily fixing the first pipe (53) of the first arrangement (50) onto the temporary fixing area (521) of the given part (52) of the first arrangement (50), then - a step of relative movement along the given direction of the first arrangement (50) and the second arrangement (60) so as to insert at least a part of the first arrangement (50) into the second arrangement (60), then - a step of removing the temporary fixing between the first pipe (53) of the first arrangement (50) and the temporary fixing area (521) of the first arrangement (50),the transitional fastening step consisting of bringing at least one point of a surface of the first pipe (53) into contact with the given surface (5212) of the transitional fastening zone (521) of the first arrangement (50), and the fastening removal step consisting of removing the contact of at least one point of a surface of the first pipe (53) with the given surface (5212) of the transitional fastening zone (521) of the fastening piece of the first arrangement (50).

9. Assembly method according to the preceding claim, characterized in that it comprises, following the step of removing the transient attachment between the first pipe (53) of the first arrangement (50) and the attachment surface of the first arrangement (50), a step of attaching the first pipe (53) to a permanent attachment area (63) of the motor vehicle, in particular a permanent attachment area (63) of the second arrangement (60).

10. Assembly method according to any one of claims 8 or 9, the second arrangement (60) comprising a water radiator (64), the method being characterized in that it comprises a step of connecting the first pipe (53) to the water radiator (64).

11. An assembly method according to any one of claims 8 to 10, wherein the engine (51) of the first arrangement (50) is fixed to a plate of an assembly line of the motor vehicle and the body (61) of the second arrangement (60) is suspended from a swing of the assembly line of the motor vehicle, characterized in that the relative movement step of the first arrangement (50) and the second arrangement (60) is implemented by a relative movement, in a vertical direction, of the plate towards the rocker and / or of the rocker towards the plate.

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