FR3062629A1 - METHOD FOR MOUNTING TWO CONTIGUOUS DOORS OF A MOTOR VEHICLE - Google Patents

Abstract

A method of mounting two contiguous doors (10, 20) of a motor vehicle (1) comprising a placing step (E2) comprising defining a relative placement of the two doors (10, 20) independently of a real geometry a body (2) of the motor vehicle (1).

Description

(54) METHOD FOR MOUNTING TWO CONTIGUOUS DOORS OF A MOTOR VEHICLE.

f Method for mounting two contiguous doors (10,, of a motor vehicle (1) comprising a placement step (E2) comprising the definition of a relative placement of the two doors (10, 20) independently of an actual geometry of a body (2) of the motor vehicle (1).

FR 3,062,629 - A1

33b ⁴²

Method for mounting two adjoining doors of a motor vehicle.

The present invention relates to a method of mounting two adjoining doors of a motor vehicle.

The invention also relates to a placement device and a gripping device implementing such a mounting method.

The invention also relates to a motor vehicle body comprising such a mounting method.

The invention also relates to a motor vehicle comprising such a body or such a mounting method.

The mounting of two adjoining doors on the body of a motor vehicle must meet several objectives. First of all, the mounting must allow easy handling of the two doors, without unnecessary resistance. In addition, the two doors must, when closed, offer a harmonious appearance. For this, the relative placement of the two doors must comply with rules concerning the clearance between the two doors along the longitudinal axis of the motor vehicle, concerning the offset between the lower and / or upper edges of the two doors along the vertical axis, concerning the flushing of one door with respect to the other along the transverse axis and finally concerning the inclination of one door with respect to the other. For this purpose, it is known to adjust the placement of each door during assembly. To this end, a first door, for example the rear door is placed on a rear door gauge itself placed relative to the body of the motor vehicle. The hinges between the rear door and the body of the motor vehicle are screwed and the gauge used for placement can be removed. The same operation is then carried out on a second door, for example the front door. Such a process can lead to defects in the relative placement of the two doors that are too large. When there is too much play, offset, mismatch, or tilt between the two doors, a touch-up operation is performed. Touch-up operations disrupt the operation of the assembly workshop, can damage the hinges and are not always sufficient to correct the defects found.

The object of the invention is to provide a method of mounting side doors of a motor vehicle overcoming the above drawbacks.

In particular, the object of the invention is to carry out a method of mounting contiguous doors of a motor vehicle making it possible to obtain a clearance, an offset, a mismatch and an inclination controlled while preserving the conformity of the opening mechanism and closing each door.

The invention relates to a method for mounting two contiguous doors of a motor vehicle comprising a placement step comprising the definition of a relative placement of the two doors independently of an actual geometry of a body of the motor vehicle.

The placement step may include a first substep comprising placing the two doors on a placement device comprising at least one means for adjusting the position and / or the orientation of the two doors relative to one another. to the other.

The placement step may comprise a second sub-step comprising an adjustment of the orientation of at least one door, in particular an adjustment of an opening angle of the two doors, in particular the opening angle of a first door with a longitudinal axis being at least approximately 45 ° and the opening angle of a second door with the longitudinal axis being at least approximately 10 °, the longitudinal axis being an axis perpendicular to a axis of rotation of at least one hinge of the at least one door.

The placement step may include a third sub-step comprising:

- an adjustment of the position of at least one door along a longitudinal axis and / or;

- an adjustment of the position of at least one door along a transverse axis and / or;

- an adjustment of the position of at least one door along an axis, perpendicular to the transverse axis and to the longitudinal axis and / or;

- an adjustment of the orientation of at least one door around the longitudinal axis and / or;

- an adjustment of the orientation of at least one door around the transverse axis and / or;

- an adjustment of the orientation of at least one door around the axis and / or;

in particular the third sub-step comprising the abutment of at least one door against a placement stop of a placement device.

The mounting method may comprise a hinge fixing step comprising the fixing, in particular the screwing, of at least one hinge on at least one door, the placement of the at least one hinge being defined with respect to an external contour of the door.

The hinge fixing step can include:

- a first sub-step comprising the placement of at least one door on a hinge mounting device and / or

- a second sub-step comprising the placement of the at least one hinge on the hinge mounting device.

The mounting method may comprise a gripping step comprising the simultaneous or almost simultaneous gripping of the two doors by a gripping device, in particular a gripping step retaining the relative placement of the two doors defined during the placement step.

The mounting method may include a displacement step comprising moving the gripping device provided with the two doors from a first location to a second location while retaining their relative placement defined during the placement step, the first location being defined by the coincidence of a first element of a first docking device with a second element of the first docking device, the first element of the first docking device being integral with a placement device and the second element of the first docking device being integral with the gripping device, the second location being defined by the actual geometry of the body of the motor vehicle, in particular by the coincidence of a first element of a second docking device with a second element of the second docking device, the first element of the second device d Docking being secured to the gripping device and the second element of the second docking device being secured to the body.

The mounting method may include a fixing step comprising the fixing of at least one door on the body of the motor vehicle, preferably the fixing of the two doors on the body of the motor vehicle, in particular a fixing step retaining the relative placement of the two doors defined during the placement step.

The hinge fixing step can precede the placement step, and / or the placement step can precede the gripping step, and / or the gripping step can precede the displacement step, and / or the displacement stage can precede the fixing stage.

The invention also relates to a device for placing two contiguous doors of a motor vehicle, comprising at least one support plate, a first placement stop intended to be pressed against a first door and at least one second stop of placement intended to be pressed against a second door.

The placement device may comprise at least a first means for adjusting the position and / or the orientation of the first door along the longitudinal axis and / or the transverse axis and / or the axis relative to the plate support and at least one second means for adjusting the position and / or the orientation of the second door along the longitudinal axis and / or the transverse axis and / or the axis relative to the support plate, the longitudinal axis, the transverse axis and the axis forming an orthogonal coordinate system.

The placement device may comprise at least one clamping means for at least one door movable between a first position and a second position, the first position being intended to allow the at least one door to be brought into or removed from the placement device, the second position being intended to ensure that the at least one door is in abutment against at least three support points defining its position unequivocally with respect to the support plate.

The invention also relates to a device for gripping two contiguous doors of a motor vehicle comprising a rigid frame, at least a first telescopic suction cup intended to grip the first door and at least a second telescopic suction cup intended to grip the second door , the telescopic suction cups being movable relative to the rigid frame to allow the gripping of the two doors in their relative placement or locked in position relative to the rigid frame to allow the movement of the two doors without modifying their relative placement.

The gripping device may comprise an element of a first docking device intended to place the gripping device relative to a placement device and / or an element of a second docking device intended to place the gripping device compared to a body of the motor vehicle.

These objects, characteristics and advantages of the present invention will be described in detail in the following description of a particular embodiment made without limitation in relation to the attached figures, among which:

Figure 1 is a perspective view of an embodiment of a placement device according to the invention on which two doors are supported.

Figure 2 is a schematic side view of a vehicle equipped with two adjoining doors.

Figure 3 is a schematic top view of two adjoining doors.

FIG. 4 is a perspective view of part of an embodiment of a gripping device and of the placement device on which two doors are supported.

Figure 5 is a schematic side view of the placement device on which two doors are supported and of a part of the gripping device.

Figure 6 is a diagram of the embodiment of a gripping device.

Figure 7 is a perspective view of an embodiment of a hinge mounting device.

Figure 8 is a partial schematic view of an embodiment of a door and the hinge mounting device, a movable device of the hinge mounting device being in a first position.

Figure 9 is a partial schematic view of an embodiment of a door with two hinges and the hinge mounting device, the movable device of the hinge mounting device being in a second position.

FIG. 10 is a flowchart illustrating an embodiment of a method of mounting two adjoining doors of a motor vehicle.

Figure 11 is an example of implementation of a hinge fixing step on a door.

FIG. 12 is an example of implementation of a step of placing two adjoining doors on a placing device.

FIG. 1 illustrates an embodiment of a placement device 30 intended to place two adjoining doors 10, 20 of a motor vehicle 1 in relation to one another. The placement device is shown with the two doors 10, 20 mounted thereon. The two doors 10, 20 can for example be left or right side doors of the motor vehicle 1. A first door, designated front door 10, can be intended to be placed at the front of the motor vehicle and a second door, designated door rear 20, may be intended to be placed at the rear of the motor vehicle. The two doors are contiguous, that is to say that they are intended to be mounted side by side on a motor vehicle and possibly without a third-party body element interposed between the two doors over their entire height. Once mounted on a body 2 of the motor vehicle 1 and once closed, the two doors can be separated by a clearance 3. Each door 10, 20 comprises an inner face 17 intended to be oriented towards the interior of the motor vehicle and a outer face 18, 28 intended to be oriented towards the outside of the motor vehicle 1. The inner 17 and outer 18, 28 faces of the two doors 10, 20 extend at least approximately in a plane. Once mounted on the vehicle, the doors being closed, the plane of the external face 18 of the front door 10 can be at least substantially parallel to the plane of the external face 28 of the rear door 20. Once mounted on the vehicle, the doors being closed, an upper edge 13 of the front door 10 can be at least substantially aligned with an upper edge 23 of the rear door 20 and / or a lower edge 14 of the front door 10 can be at least substantially aligned with a lower edge 24 of the rear door 20 and / or a lower edge 16 or upper of a window 15 of the front door 10 may be at least substantially aligned with a lower edge 26 or upper of a window 25 of the rear door 20 An outline of a door is defined by the set of lower, upper, rear and front edges of the door. Once mounted on a motor vehicle, each of the two doors can open or close by a rotational movement around at least one hinge 101, 201 arranged near an edge of the door. According to the embodiment described, the front door 10 is provided with two hinges 101 arranged near a front edge 12 of the front door 10 and the rear door 20 is provided with two hinges 201 arranged near a front edge 22 of the rear door 20. Alternatively, a hinge of the front door or the rear door could be disposed near any other edge of the door. According to another variant, at least one door could for example be a sliding door, that is to say a door opening or closing by a translational movement.

A direct orthonormal coordinate system comprising the X axis, the Y axis and the Z axis is defined by reference to the two doors in the closed state. The X axis designates the longitudinal axis of the two doors in the closed state. The X axis is parallel to the longitudinal axis of the motor vehicle, that is to say the axis in which the vehicle travels in a straight line once the two doors are mounted on the motor vehicle. The X axis is oriented from the front to the rear of the motor vehicle. Left and right are defined from the perspective of a driver of the motor vehicle. The Y axis designates the transverse axis of the two doors in the closed state. The Y axis is oriented from left to right. The Y axis is parallel to the transverse axis of the motor vehicle once the two doors are mounted on the motor vehicle. The Z axis designates the axis perpendicular to the longitudinal axis X and the transverse axis Y of the motor vehicle. When the motor vehicle rests on horizontal ground, the Z axis is a vertical axis. However, during the description of the mounting method which will follow, the two doors 10, 20 of the motor vehicle can be inclined relative to the orientation which is theirs when they are assembled on the motor vehicle. The Z axis no longer corresponds to the vertical axis. The reference is linked to the set of two doors when they are in their closed configuration and in their adjusted relative position.

Throughout the document, the term "placement" denotes positioning and orientation. Positioning refers to a translational movement along one or more axes. Orientation refers to a rotational movement along one or more axes.

The placement device makes it possible to place the two doors 10, 20 from a so-called initial placement to a so-called adjusted placement. The so-called initial placement can be any placement of the two doors. In so-called initial placement, each of the two doors rests on at least three support points 32b, 35b of the placement device. In said initial placement, each of the two doors is placed so as to be able to cooperate with at least one adjustment means 31, 32, 33, 34, 35, 36 of the placement device. The so-called adjusted placement is the relative placement of the two doors which is such that we can obtain:

- a clearance 3 calibrated and regular between the two doors along the transverse axis; and or

- an offset 4 zero or close to zero along the Z axis; and or

- an offset, also called outcrop 5, zero or close to zero along the transverse axis Y; and or

- A tilt 6 between the plane of the outer face 18 of the front door 10 and the plane of the outer face 28 of the rear door 20 zero or close to zero;

by the simple rotation of one and / or the other of the two doors relative to the axes of their respective hinges.

The clearance 3, the offset 4, the deflection 5 and the inclination 6 are illustrated in FIGS. 2 and 3. The clearance 3 between the two doors along the transverse axis can be a clearance calibrated to a certain value. The clearance 3 can be defined for example as a function of design rules and / or in order to prevent or limit the injury of a finger trapped between the two doors. The play is regular when it has the same value, or substantially the same value over the entire height of the two doors. The clearance 3 and the flush 5 between the two doors can be measured or considered at any height of the two doors along the Z axis or at an agreed height. The offset 4 can be measured or considered by comparing the lower edges and / or the upper edges of the two doors and / or by comparing the upper and / or lower edges of the windows of the two doors. The inclination 6 can correspond to the angle formed between the plane of the outer face 18 of the front door 10 and the plane of the outer face 28 of the rear door 20. The so-called adjusted placement can be obtained while the doors are open. However, the concepts of clearance 3, offset 4, flush 5 or tilt 6 only make sense when the two doors are in the closed position. By closed position is meant the relative position of the two doors such that they would close a passenger compartment of the motor vehicle once mounted on the body 2 of the motor vehicle 1. The closed position may correspond to an alignment at least approximate of the outer faces 18, 28 of the two doors 10, 20. The opening or closing of a door is done by activating a door opening / closing mechanism, for example by rotation about a pivot axis of the hinges according to the mode illustrated. As a variant, the offset 4, the mismatch 5 or the inclination 6 can be voluntarily defined at non-zero values, for example by aesthetic choice. In such a case, the devices whose description will follow can be simply adapted in order to obtain an assembly of two adjoining doors as desired.

The placement device 30 may comprise a chassis 40. The chassis 40 may comprise a support plate 41 on which are fixed the at least two adjustment means 31, 32, 33, 34, 35, 36 and the at least three points of 'support 32b, 35b. The chassis 40 may also include stiffening elements 42 increasing the rigidity of the support plate 41. The support plate 41 may have a generally planar shape and extend in a plane substantially parallel to the longitudinal axis X and to the axis Z. A height H2 of the support plate 41 can be of the same order of magnitude as a height H1 of one of the two doors 10, 20. A length L2 of the support plate 41 can be of the same order of size than the length L1 of the two doors 10, 20 placed side by side. The support plate 41 can be oriented horizontally in an assembly workshop or alternatively according to any other inclination.

The two doors are placed according to their initial placement on the at least three support points 32b, 35b, two of which are particularly visible in FIG. 5. The interior faces 17 of the two doors face at least approximately opposite the support plate 41. According to the embodiment presented, the placement device 30 comprises:

a first means 31 for adjusting the position of the front door 10 along the longitudinal axis X,

a second means 32 for adjusting the position of the front door 10 along the transverse axis Y,

- a third means 33 for adjusting the position of the front door along the Z axis.

In addition, the first adjusting means 31 and the third adjusting means 33 make it possible to define the orientation of the front door 10 around the transverse axis Y. The second adjusting means 32 makes it possible to define the orientation of the door forward 10 around the longitudinal axis X and the axis Z.

Likewise, the placement device 30 comprises adjustment means 34, 35, 36 of the position and of the orientation of the rear door 20 along the longitudinal axis X, the transverse axis Y and the axis Z. The adjustment means 31, 32, 33, 34, 35, 36 may comprise a jack 31a, 33a, 34a, 36a and a placement stop 31b, 33b, 34b, 36b. As a variant, a placement device 30 could comprise means for adjusting position or orientation along only one axis or means for adjusting along only two axes.

As illustrated in FIG. 1, the means 31 for adjusting the position of the front door 10 along the longitudinal axis X comprises on the one hand a jack

31a oriented along the longitudinal axis X and bearing against the front edge 12 of the front door 10. On the other hand, the adjusting means 31 comprises a placement stop 31b disposed towards the rear edge 11 of the front door 10. The means 34 for adjusting the position of the rear door 20 along the longitudinal axis X comprises on the one hand a jack 34a oriented along the longitudinal axis X and pressing against the rear edge 21 of the rear door 20. On the other hand hand, the adjustment means 34 comprises a placement stop 34b disposed towards the front edge 22 of the rear door 20. As a variant, the placement of the jacks 31a, 34a and of the placement stops 31b, 34b could be reversed, that is ie the jack 31a could be supported on the rear edge 11 and the corresponding stop towards the front edge 12 of the front door 10. Similarly, the jack 34a could be supported on the front edge 22 and the corresponding stop towards the rear edge 21 of the rear door 20. However, the placement of the placement stops between the two doors 10, 20 as shown in FIG. 1 advantageously allows adjustment of the clearance 3 and of the parallelism between the front edge 22 of the rear door 20 and the rear edge 11 of the door before 10 independently of the manufacturing tolerances of the two doors 10, 20, in particular independently of the length dispersion of the two doors along the longitudinal axis X.

The means 33 for adjusting the position of the front door 10 along the Z axis comprises on the one hand a jack 33a oriented along the Z axis and pressing against an upper edge 13 of the front door 10 or, as illustrated in the Figure 1, pressing against the lower edge 16 of the window 15 of the front door

10. On the other hand, the adjustment means 33 comprises a placement stop 33b disposed towards the lower edge 14 of the front door 10. Similarly, the adjustment means 36 along the axis Z of the rear door 20 comprises a jack 36a and a placement stop 36b.

The placement stops 31b, 33b, 34b, 36b of the different adjustment means may consist of two supports 31c, 31 d extending in a direction perpendicular to the axis of the adjustment, that is to say perpendicular to the orientation of the jack. Thus, the positioning stops of the adjustment means 31, 34 each comprise two supports 31c, 31 d and respectively 34c, 34d oriented along the transverse axis Y particularly visible in FIG. 1. An axis perpendicular to the transverse axis Y and passing through the two supports 31c, 31 d may be parallel to an axis perpendicular to the transverse axis Y and passing through the two supports 34c, 34d. Thus, when the two doors 10, 20 are in abutment against the supports 31c, 31d, 34c, 34d, the front edge 22 of the rear door 20 is parallel to the rear edge 11 of the front door 10 and therefore the clearance 3 is regular over the entire height of the two doors 10, 20. The positioning stops of the adjustment means 33, 36 each comprise two supports 33c, 33d and respectively 36c, 36d oriented along the transverse axis Y. An axis perpendicular to the axis transverse Y and passing through the two supports 33c, 33d can be confused with an axis perpendicular to the transverse axis Y and passing through the two supports 36c, 36d. Thus when the two doors are each supported against these two supports, the lower edges of the two doors 10, 20 are aligned and parallel. The positioning stops of the various adjustment means are intended to come into contact with their respective door by actuation of their respective jack. For example, when the jack 31a pushes the door 10 against the placement stop 31b, the door 10 is then in abutment against the two supports 31c, 31d. The positioning stops of the various adjustment means are locked in position on the support plate 41. When the front door 10 is in abutment against the supports 31c, 31d, 34c, 34d, the position along the longitudinal axis X, the position along the Z axis and also the orientation around the transverse axis Y of the front door 10 are defined and correspond to the so-called adjusted placement of the front door 10. Similarly, when the rear door 20 is pressed against the supports 34c, 34d, 36c, 36d, the position along the longitudinal axis X, the position along the axis Z and also the orientation around the transverse axis Y of the rear door 20 are defined and correspond to the so-called adjusted placement rear door 20.

The means 32 for adjusting the position of the front door 10 along the transverse axis Y can include at least three support points 32b on which the front door 10 is intended to rest. The at least three support points 32b can be blocked on the support plate 41 or can be movable along the transverse axis Y, for example by means of a jack oriented along the transverse axis Y interposed between the support plate 41 and at least three support points 32b. The front door 10 is supported on at least three support points 32b by its inner face 17. In addition, the adjusting means 32 may comprise a clamping means 32a pressing on the outer face 18 of the front door 10 along the transverse axis Y and ensuring that the front door 10 rests on the at least three support points 32b. The clamping means 32a can comprise a jack exerting a push against the external face 18 along the transverse axis Y and directed towards the support plate 41. As a variant, the clamping means 32a can comprise an element capable of carrying out a rotary movement , for example a rotary movement around an axis parallel to the longitudinal axis X or parallel to the axis Z. The element bears on the external face 18 of the door and produces the same force on the door before a cylinder oriented along the transverse axis Y would do so. Similarly, the adjustment means 35 along the transverse axis Y of the rear door 20 comprises a clamping means 35a and at least three support points 35b which can be blocked. in position on the support plate 41. The clamping means 32a, 35a is movable between a first position and a second position. The first position is intended to allow the front door 10 and / or the rear door 20 to be added to or removed from the placement device 30. The second position is intended to ensure that the door is properly supported against the various support points which make it possible to define its position unequivocally with respect to the support plate 41.

When the front door 10 is in abutment against the at least three support points 32b, the position along the transverse axis Y, the orientation around the longitudinal axis X and also the orientation around the axis Z of the front door 10 are defined and correspond to the so-called adjusted placement of the front door 10. Similarly, when the rear door 20 is in abutment against the least three support points 35b, the position along the transverse axis Y, l ' orientation around the longitudinal axis X and also the orientation around the axis Z of the rear door 20 are defined and correspond to the so-called adjusted placement of the rear door 20.

The at least three support points 32b can be defined or controlled so that the front door 10 forms an opening angle 19 of approximately 45 ° with the support plate 41. The opening angle 19 is formed at level of the hinge of the front door 10. The at least three support points 35b can be defined or controlled so that the rear door 20 forms an opening angle 29 of approximately 10 ° with the support plate 41. The opening angle 29 is formed at the hinge of the rear door 20. Thus, the relative placement of the two doors placed on the placement device corresponds at least substantially to a possible relative placement of the two doors once mounted on the motor vehicle. In particular, the front door 10 can be opened at 45 ° relative to the longitudinal axis of the motor vehicle. The rear door 20 can be opened at 10 ° relative to the longitudinal axis of the motor vehicle. Alternatively, the doors can be kept open with a different opening angle 19, 29. The opening angle of each door 10, 20 is defined to allow the hinges 101, 201 to be fixed to the vehicle body

As a variant, the jacks of the various adjustment means and / or the placement stops can be supported on any door element comprising a bearing face or a bearing section substantially perpendicular to the orientation of the jack. According to another variant, the doors can be:

- supported and / or maintained manually supported against the placement stops, and / or

- supported and / or kept supported under their own weight against the placement stops.

The placement device 30 can also comprise a piloting device (not shown) connected to at least one jack or clamping means, preferably to all of the jacks and clamping means of the placement device 30.

Finally, the placement device 30 can comprise at least a first element 43, or even at least two first elements 43, of a first docking device 63. The at least two first elements can be positioned on two of the sides of the plate support 41. The at least one first element 43 is intended to cooperate with at least one second element 59 of the first docking device 63. The at least one second element 59 is integral with a gripping device 50. The first docking device 63 makes it possible to place the gripping device 50 relative to the placement device 30. The at least one first element 43 may comprise a bearing surface 44 extending approximately parallel to the plane of the support plate 41. The at least one first element 43 can also comprise a relief oriented at least partially along the longitudinal axis X and / or the axis Z. The second element 59 comprises a shape complementary to the first element 43. The pressing of the second element 59 against the first element 43 according to their complementary reliefs makes it possible to position and orient the gripping device 50 in a precise and unique manner relative to the placement device 30. An embodiment of the first and second element can be a parallelepiped shape or a cylindrical shape on one of the two elements cooperating with a recess of complementary shape on the other element.

The various jacks and / or placement stops and / or clamping means and / or first elements of the first docking means 63 can be firmly fixed to the support plate 41 by means of a fixing foot 45. The fixing foot 45 comprises a base 46 fixed, for example screwed, to the support plate 41 and an axis, for example a profile 47, making the connection between the base 46 and the jack 31a, 33a, 34a, 36a or the stop of placement 31b, 33b, 34b, 36b or the first element 43 of the first docking device or the clamping means 32a, 35a. The profile 47 can extend perpendicular to the plane of the support plate 41.

The support plate 41, the fixing feet 45, the placement stops 31b, 33b, 34b, 36b, the at least three support points 32b, 35b are preferably made of metal. As a variant, they can be made of any material whose rigidity is sufficient not to deform significantly during use, in particular when the two doors are pressed against the positioning stops and / or the at least three points support.

According to an alternative embodiment, the position of the fixing feet and / or the support points can be reconfigured on the support plate 41 so as to use the placement device 30 with different door shapes corresponding to different types of motor vehicles. .

Figures 4, 5 and 6 illustrate an embodiment of the gripping device 50. The gripping device 50 is intended to grip the two doors 10, 20 simultaneously or almost simultaneously and to move them together towards the body 2 of the motor vehicle 1 for an assembly of the two doors 10, 20 on the body 2. The gripping device comprises a rigid frame 51 equipped with telescopic suction cups 52 or a telescopic group of suction cups, a handling arm 53, a connecting element 54 to a building and a control device 60.

The rigid frame 51 extends in the form of a plane. A height H3 and a length L3 of the rigid chassis approximate the height H2 and the width L2 of the support plate of the placement device 30. The chassis can be formed by bars 58 fixed together, for example welded or screwed together. The telescopic suction cups 52 or the telescopic suction cup group can be fixed to the rigid frame 51. The telescopic suction cups 52 or the telescopic suction cup group are intended to grip the two doors by the external face 18, 28 of each door. The telescopic suction cups 52 or the telescopic group of suction cups can be movable relative to the rigid frame 51 along an axis perpendicular or substantially perpendicular to the plane formed by the outer face of the door that they are intended to grip. To this end, the telescopic suction cups 52 or the telescopic group of suction cups can comprise a slide link, and in particular a jack. In a first configuration, the slide connection can be free, the telescopic suction cups 52 or the telescopic group of suction cups can therefore move perpendicular or substantially perpendicular to the plane formed by the outer face 18, 28 of the door 10, 20 that they are intended to seize. In a second configuration, the slide link can be blocked. The telescopic suction cups 52 or the telescopic group of suction cups are then locked in position relative to the rigid frame 51.

The rigid frame 51 can comprise at least one second element 59 of the first docking device 63, or even at least two second elements 59 of the first docking device 63. The at least one second element can be fixed and blocked in position on the rigid chassis 51. When the gripping device is about to grip the two doors, the plane of the rigid chassis is substantially parallel to the plane of the support plate, that is to say parallel to the axis X and to the axis Z. The second element of the first docking device 63, integral with the gripping device, bears against the first element 43 of the first docking device 63, integral with the device of the placement device. In the same way, the rigid chassis 51 may also include a first element 65 of a second docking device intended to cooperate with a second element 66 of the second docking device 64 secured to the body 2 of the motor vehicle

1. The second docking device 64 makes it possible to place the gripping device 50 relative to the body 2 of the motor vehicle 1 in a precise and unique manner. An embodiment of the first element of the second docking device 64 may include a cylindrical part. As shown in FIG. 2, an embodiment of the second element 66 of the second docking device 64 may include a circular or rectangular orifice in the body of the motor vehicle positioned near the location of the two doors and intended to cooperate with the cylindrical part. As shown in FIG. 4, the second element 59 of the first docking device 63 and the first element 65 of the second docking device 64 are combined but these two elements could also be separate.

The handling arm 53 is fixed at one end to the rigid frame 51 and at another end to a connecting element 54 itself fixed to the building. The manipulation arm 53 can be a robot arm, in particular it can be articulated. The connecting element can be a foot 54 fixed to the ground of the building or a guide rail fixed to the ceiling of the building.

The control device 60 can control the slide link of each telescopic suction cup 52 or of the telescopic group of suction cups. In addition, the piloting device 60 can comprise a piloting, for example a pneumatic piloting, of each suction cup. The control device 60 can also include a position sensor and / or a means for detecting a contact of one or more suction cups against an element to be grasped, in particular against a door 10, 20. In addition the control device can control the movements of the manipulation arm. In particular, the device can control the movement of the rigid chassis 51 from the placement device 30 to the body of the motor vehicle 2 as well as the return movement. The piloting device can operate autonomously, that is to say as a piloting automaton, or semi-autonomously, that is to say assisted by at least one operator 62. For example, the device piloting system may include a console 61 serving as an interface between the operator 62 and the gripping device 50.

Figures 7, 8 and 9 illustrate a hinge mounting device 70 for mounting at least one hinge 101,201 on a door 10, 20. According to the embodiment presented, two hinges 101 are mounted near the front edge 12 of the front door 10. A similar device can be used for mounting the hinges 201 of the rear door 20. The hinge mounting device 70 comprises a support plate 71, placement elements 72 intended to place the door along the longitudinal axis X, the transverse axis Y and the vertical axis Z, at least one suction cup 73, two suction cups 73 according to the illustrated embodiment, intended to block the placement of the door on the mounting device of hinges 70. The support plate 71 extends along a plane parallel to the longitudinal axis X and the axis Z. The support plate 71 can be arranged horizontally or substantially horizontally. Finally, the hinge mounting device 70 comprises two guide rails 74 and a mobile device 75 in sliding connection on the guide rails 74. The guide rails are aligned along an axis of the support plate 71, the longitudinal axis along the embodiment presented. The mobile device 75 serves to place the hinges on the doors. The placement elements 72, the at least one suction cup 73, and the two guide rails 74 are locked on the support plate 71. The placement elements 72 may for example have flanges 720 oriented along the longitudinal axis X or l Z axis. The edges 720 are intended to be positioned on the contour and / or at corners of the door. For example, a first edge 720a is intended to be positioned opposite the upper edge 13 of the front door 10. A second edge 720b is intended to be positioned opposite the rear edge 11 of the door front 10. A third ledge 720c is intended to be positioned opposite a rear lower corner of the front door

10. A fourth edge 720d is intended to be positioned opposite a front lower corner of the front door 10. A fifth edge 720e is intended to be positioned opposite a front edge 12 of the front door 10. The placement elements 72 and the flanges 720 are arranged so as to create stable placement for the door 10 placed thereon. The placement elements 72 can be removable so as to reuse the hinge mounting device 70 with different door shapes, in particular the rear door 20 or other front door shapes corresponding to other motor vehicles. The hinge mounting device 70 may also include a tool for fixing 80 of the at least one hinge to the door. The fixing tool can for example be a screwing means such as a screwdriver or an electric screwdriver. The fixing tool can be connected by a flexible cord or cable to the support plate 71. Thus the fixing tool 80 is always within reach of an operator wishing to fix the at least one hinge on the door .

The mobile device 75 slides on the guide rails 74 between a first position and a second position. In the first position, the mobile device 75 is in abutment against a first stop 76a. In the second position, the mobile device is in abutment against a second stop 76b. The first position is a preparation position intended to place two hinges 101 to be mounted on the mobile device 75. The second position is a position allowing the two hinges 101 to be screwed onto the door 10. The mobile device comprises two insertion plates 77 on which the two hinges 101 can be mounted. The two insertion plates 77 can have a substantially planar shape. The two insertion plates 77 may be parallel to the plane defined by the support plate 71 and / or be arranged horizontally. A hinge 101 is composed of a hinge 102 intended to be fixed to the body of the motor vehicle and a leaf 103 intended to be fixed on the door. The mass grave 102 and the leaf 103 are pivotally connected about an axis. The mass grave and the leaf each have two fixing holes 104, 105 intended for the passage of fixing screws. The two insertion plates may each comprise two pins 78 intended to cooperate with the two fixing holes of the hinge 102 of each hinge 101. The two insertion plates may have a shape matching the shape of the hinge 102. Thus the hinges 101 are precisely placed on the mobile device 75. Finally, the mobile device 75 may comprise a handle 79 making it possible to move it by sliding on the guide rails 74 from the first position to the second position and vice versa. When the mobile device 75 is in abutment against the stop 76b, the hinges are precisely placed with respect to the contour of the door 10 along the three axes X, Y and Z.

In addition, the insertion plates 77 can be linked to one or more springs oriented along the transverse axis Y. Thus, after fixing the hinges on the door, the insertion plates can be pushed back in the direction of the plate. support 71 by compression of the spring or springs. In this way, the two pins 78 of each insertion plate 77 can be released from the fixing holes of the mass grave 102. The mobile device 75 can then be moved against the first stop 76a.

An embodiment of an assembly method according to the invention is described below with reference to FIGS. 10, 11 and 12.

Advantageously, the mounting method comprises several stages among which:

- A hinge fixing step E1 comprising the fixing, in particular the screwing, of at least one hinge 101, 201 on at least one door 10, 20;

a placement step E2 comprising the definition of a relative placement of the two doors 10, 20 independently of a real geometry of a body 2 of the motor vehicle 1, that is to say that the doors are placed one relative to the other at a distance from the body on which they are intended to be mounted and the relative placement of the two doors is not disturbed by the manufacturing dispersions of the body;

- A gripping step E3 comprising gripping the two doors 10, 20 by the gripping device 50, in particular a gripping step E3 retaining the relative placement of the two doors 10, 20 defined during the placement step E2;

a displacement step E4 comprising moving the gripping device 50 provided with the two doors 10, 20 from a first location to a second location while retaining their relative placement defined during the placement step E2. The first location is defined by the coincidence of a first element 43 of a first docking device 63 with a second element 59 of the first docking device 63, the first element 43 of the first docking device 63 being integral with the placement device 30 and the second element 59 of the first docking device being integral with the gripping device 50. The second location is defined by the actual geometry of the body 2 of the motor vehicle 1, in particular by the coincidence of a first element 65 of a second docking device 64 with a second element 66 of the second docking device 64, the first element of the second docking device being integral with the gripping device 50 and the second element of the second docking device being secured to the body 2.

- A fixing step E5 comprising the fixing of at least one door 10, 20 to the body 2 of the motor vehicle 1, preferably the fixing of the two doors 10, 20 to the body of the motor vehicle 1.

The hinge fixing step E1 may comprise a first substep E11 comprising the placement of the at least one door 10, 20 on the hinge mounting device 70. The door is placed in a stable placement bearing on the various elements 72. The door can be placed with its outer face facing the support plate 71. The edges of the door are positioned against the edges 720 of the placement elements. This placement is blocked by at least one suction cup resting on the outer face 18 of the door. Therefore, the door is locked relative to the support plate 71. This placement is defined by the exterior contour of the door

The hinge fixing step E1 may comprise a second substep E12 comprising the placement of the at least one hinge 101, 201 on the hinge mounting device 70. The at least one hinge is placed on an insertion plate 77. The hinge fixing holes 102 are made to coincide with the pins 78 of the insertion plate 77. The hinge thus placed is locked in position along the longitudinal axis X and the axis Z. When the insertion plate is arranged horizontally or substantially horizontally, the hinge rests by gravity on the insertion plate which defines the position of the hinge 102 relative to the support plate 71 along the transverse axis Y. The placement of the at least one hinge on an insertion plate is made while the mobile device is in the first position.

The hinge fixing step E1 may include a third substep E13 for moving the mobile device from the first position to the second position. This movement can be achieved for example by an operator grasping the handle 79 and thus moving the mobile device against the second stop 76b. The hinge 101, 201 is thus placed along the three axes X, Y and Z with respect to the edges of the door bearing on the placement elements

The hinge fixing step E1 may comprise a fourth sub-step E14 for screwing the leaf 103 of the hinge 101 to the door 10. Advantageously, the fixing holes 105 of the leaf 103 are large enough to allow the hinge to be screwed onto the door taking into account manufacturing dispersions.

As illustrated in FIG. 10, the substeps of the hinge fixing step E1 are preferably carried out in this order:

- sub-step E11 precedes sub-step E12,

- sub-step E12 precedes sub-step E13,

- sub-step E13 precedes sub-step E14.

Thus at the end of the hinge fixing step E1, the two doors 10, 20 are each provided with at least one hinge 101, 201, two hinges according to the embodiment presented. The hinges 101, 201 are placed and locked in position on the doors with reference to the external contours of each door.

The placement step E2 may include a first substep E21 comprising placing the two doors on the placement device 30 according to a so-called initial placement. During this sub-step, the front door 10 and the rear door 20 are each placed in abutment on the at least three support points 32b, 35b. The front edge of the front door is, at least substantially, placed opposite the jack 31a. The lower edge 16 of the window 15 is, at least substantially, placed opposite the jack 33a oriented along the axis Z. Similarly, the rear door 20 is placed, at least substantially, vis-à-vis jacks 34a and 36a. Then the clamping means 32a, 35a come to bear against the outer face of the two doors so as to press them against their at least three support points 32b, 35b respectively.

The placement step E2 can comprise a second substep E22 comprising an adjustment of the orientation of at least one door 10, 20. The opening angle 19 of the front door 10 with the longitudinal axis X can be at least approximately 45 °. The opening corner 29 of the rear door 20 with the longitudinal axis X can be at least approximately 10 °. According to an alternative embodiment, the adjustment can be obtained by actuating the cylinders oriented along the transverse axis Y interposed between the support plate 41 and the at least three support points 32b, 35b. According to another variant, the at least three support points 32b, 35b are not movable along the transverse axis Y and the opening angle 19, 29 of each door is defined from substep E21 during which the two doors 10, 20 are supported each on the at least three support points 32b, 35b.

The placement step E2 can comprise a third substep E23 comprising an adjustment of the position of at least one door 10, 20 along the longitudinal axis X and / or along a transverse axis Y and / or along the axis Z and / or an adjustment of the orientation of the at least one door 10, 20 around the longitudinal axis X and / or around a transverse axis Y and / or around the axis Z. The third sub- step may include the abutment of at least one door 10, 20 against the placement stops 31b, 33b, 34b, 36b. During this sub-step, the jacks 31a, 33a, 34a and 36a are actuated. The cylinders push along the transverse axis X or the axis Z of each door. The doors move by sliding on their at least three support points 32b, 35b until they come into contact against the stops 31b, 33b, 34b, 36b. At the end of this sub-step, the lower edge 14 of the front door 10 is in abutment against the stop 33b, the rear edge 11 of the front door 10 is in abutment against the abutment 31b, the lower edge of the door rear 20 bears against the stop 36b, the front edge 22 of the rear door 20 bears against the stop 34b.

As illustrated in FIG. 11, the sub-steps of the placement step E2 are preferably carried out in this order:

- sub-step E21 precedes sub-step E22, and / or

- sub-step E22 precedes sub-step E23.

However, sub-step E22 could also be carried out after sub-step E23.

At the end of the placement step E2, the two doors 10, 20 are in so-called adjusted placement. The placement of the two doors is carried out independently of the actual geometry of the body on which they are intended to be mounted.

The actuation of the jacks and / or clamping means of the placement device can be ordered by the control device of the placement device. The actuation of the jacks and / or the clamping means can be carried out simultaneously or sequentially, that is to say one after the other.

During the gripping step E3, the rigid frame 51 is approached to the placement device 30. The rigid frame 51 is precisely placed relative to the placement device 30 using the first docking device 63. The placement is obtained when the first element of the first docking device 63 coincides with the second element of the first docking device 63. Once placed relative to the placement device 30, the rigid frame is locked in position relative to the placement device 30 The telescopic suction cups 52 or the telescopic group of suction cups are set in motion until they come against the outside face of each door. The suction cups or the telescopic group of suction cups are then actuated in such a way as to create a force of cohesion with the doors. The suction cups or the telescopic group of suction cups are then locked in position relative to the two doors. The slide connection of each suction cup or telescopic group of suction cups can then be blocked. Therefore the two doors are locked in position relative to the rigid frame 51. The clamping means 32a, 35a of the placement device can be actuated so as to release the two doors. At the end of the gripping step E3, the two doors have retained their relative placement defined in the placement step E2.

During the displacement step E4, the handling arm 53 is actuated so as to move the rigid chassis 51 from the placement device towards the body of the motor vehicle. The movement can be completely automated or assisted by an operator controlling the movements of the handling arm. The rigid chassis is then placed precisely relative to the body of the motor vehicle thanks to the second docking device. The fixing holes of the hinge leaves of the two doors then coincide with the fixing holes provided in the body of the motor vehicle. Advantageously, the fixing holes 104 of the hinge 102 are large enough to allow the hinge to be screwed onto the body, taking account of manufacturing dispersions. During the displacement step E4, the relative placement of the two doors defined during the placement step E2 is preserved.

As a variant, the relative placement of the two doors could be modified according to a predetermined amount, for example the clearance between the two doors could be increased or reduced between the placement step E2 and the step of fixing the two doors E5 on the body. of the motor vehicle.

During the fixing step E5, the hinge 103 of the two hinges 101,201 of each door 10, 20 is fixed to the body 2 of the motor vehicle. The fixing is carried out by screwing through the fixing holes 105 of the hinges 103 of each hinge. Access to the fixing holes 105 is facilitated by the opening angle 19, 29 of the opening of the two doors. Once the screwing has been carried out, the telescopic suction cups 52 or the telescopic group of suction cups of the gripping device can be separated from the two doors 10, 20. The two doors are thus separated from the gripping device 50.

As illustrated in FIG. 10, the steps of the assembly process are preferably carried out in this order:

- step E1 precedes step E2,

- step E2 precedes step E3,

- step E3 precedes step E4,

- step E4 precedes step E5.

Thanks to the invention, two contiguous doors of a motor vehicle are assembled on the body of the motor vehicle. The two doors are positioned and oriented independently of the real geometry of the body of the motor vehicle. Thus, the adjustment of the clearance 3, the offset 4, the mismatch 5 and the inclination 6 between the two doors is not disturbed by the dispersions and the manufacturing tolerances of the body. The placement and orientation of the two doors obtained according to this process are elegant and preserve the conformity of the opening and closing mechanism of each door. In addition, the method allows rapid assembly of the two doors on the vehicle body. In addition, the placement device, the gripping device and the hinge mounting device implementing the mounting method constitute a set of modular mounting means which can be used for different vehicle geometries.

Claims (4)

Claims: 1. A method of mounting two adjoining doors (10, 20) of a motor vehicle (1), characterized in that it comprises a placement step (E2) comprising the definition of a relative placement of the two doors (10 , 20) independently of a real geometry of a body (2) of the motor vehicle (1). 2. Assembly method according to the preceding claim, characterized in that the placement step (E2) comprises a first substep (E21) comprising placing the two doors on a placement device (30) comprising at least one means adjusting the position and / or orientation of the two doors relative to each other. 3. Assembly method according to one of the preceding claims, characterized in that the placement step (E2) comprises a second substep (E22) comprising an adjustment of the orientation of at least one door (10, 20), in particular an adjustment of an opening angle (19, 29) of the two doors, in particular the opening angle (19) of a first door (10) with a longitudinal axis (X) being at least approximately equal to 45 ° and the opening angle (29) of a second door (20) with the longitudinal axis (X) being at least approximately equal to 10 °, the longitudinal axis (X) being an axis perpendicular to an axis of rotation of at least one hinge (101, 201) of the at least one door (10, 20). 4. Assembly method according to one of the preceding claims, characterized in that the placement step (E2) comprises a third substep (E23) comprising: - an adjustment of the position of at least one door (10, 20) along a longitudinal axis (X) and / or; - an adjustment of the position of at least one door (10, 20) along a transverse axis (Y) and / or; - an adjustment of the position of at least one door (10, 20) along an axis (Z), perpendicular to the transverse axis (Y) and to the longitudinal axis (X) and / or; - an adjustment of the orientation of at least one door (10, 20) around the longitudinal axis (X) and / or; - an adjustment of the orientation of at least one door (10, 20) around the transverse axis (Y) and / or; - an adjustment of the orientation of at least one door (10, 20) around the axis (Z) and / or; in particular the third sub-step comprising the abutment of at least one door (10, 20) against a placement stop (31b, 33b, 34b, 36b) of a placement device (30). Mounting method according to one of the preceding claims, characterized in that it comprises a hinge fixing step (E1) comprising the fixing, in particular the screwing, of at least one hinge (101, 201) on at least one door (10, 20), the placement of the at least one hinge (101, 201) being defined relative to an exterior contour of the door. Assembly method according to the preceding claim, characterized in that the hinge fixing step (E1) comprises: - a first sub-step (E11) comprising the placement of the at least one door (10, 20) on a device for mounting hinges (70) and / or; - a second substep (E12) comprising the placement of the at least one hinge (101, 201) on the hinge mounting device (70). Mounting method according to one of the preceding claims, characterized in that it comprises a gripping step (E3) comprising the simultaneous or almost simultaneous gripping of the two doors by a gripping device (50), in particular a gripping step ( E3) retaining the relative placement of the two doors (10, 20) defined during the placement step (E2). Mounting method according to the preceding claim, characterized in that it comprises a displacement step (E4) comprising the displacement of the gripping device (50) provided with the two doors (10, 20) from a first location to a second location while retaining their relative placement defined during the placement step (E2), the first location being defined by the coincidence of a first element (43) of a first docking device (63) with a second element ( 59) of the first docking device (63), the first element (43) of the first docking device (63) being integral with a placement device (30) and the second element (59) of the first docking device docking being integral with the gripping device (50), the second location being defined by the actual geometry of the body (2) of the motor vehicle (1), in particular by the coincidence of a first element (65) of a second d docking device (64) with a second element (66) of the second docking device (64), the first element of the second docking device being integral with the gripping device (50) and the second element of the second docking device docking being secured to the body (2). Mounting method according to one of the preceding claims, characterized in that it comprises a fixing step (E5) comprising the fixing of at least one door (10, 20) on the body (2) of the motor vehicle (1 ), preferably the fixing of the two doors (10,20) on the body (2) of the motor vehicle (1), in particular a fixing step (E5) retaining the relative placement of the two doors (10, 20) defined during the placement step (E2). Assembly method according to claims 1, 5, 7, 8 and 9 characterized in that: - the hinge fixing step (E1) precedes the placement step (E2) and / or; - the placement step (E2) precedes the gripping step (E3) and / or; - the gripping step (E3) precedes the moving step (E4) and / or; - the displacement stage (E4) precedes the fixing stage (E5). Device for placing (30) two adjoining doors (10, 20) of a motor vehicle (1) for implementing the mounting method according to one of claims 1 to 10, characterized in that it comprises at least a support plate (41), a first placement stop (31b, 33b) intended to be pressed against a first door (10) and at least a second placement stop (34b, 36b) intended to be pressed against a second door (20). Placement device (30) according to the preceding claim, characterized in that it comprises at least a first means of adjustment (31, 32, 33) of the position and / or the orientation of the first door (10) according to the longitudinal axis (X) and / or the transverse axis (Y) and / or the axis (Z) relative to the support plate (41) and at least one second adjustment means (34, 35, 36 ) the position and / or orientation of the second door (20) along the longitudinal axis (X) and / or the transverse axis (Y) and / or the axis (Z) relative to the plate support (41), the longitudinal axis (X), the transverse axis (Y) and the axis (Z) forming an orthogonal coordinate system. Placement device (30) according to one of claims 11 or 12, characterized in that it comprises at least one clamping means (32a, 35a) of at least one door (10, 20) movable between a first position and a second position, the first position being intended to allow the at least one door (10, 20) to be added to or removed from the placement device (30), the second position being intended to ensure that the at at least one door (10, 20) bears well against at least three support points (32b, 35b) defining its position unequivocally with respect to the support plate (41). Gripping device (50) of two adjoining doors (10, 20) of a motor vehicle (1) for implementing the mounting method according to one of claims 1 to 10, characterized in that it comprises a chassis rigid (51), at least a first telescopic suction cup (52) intended to grip the first door (10) and at least a second telescopic suction cup (52) intended to grip the second door (20), the telescopic suction cups (52) being movable relative to the rigid frame (51) to allow the gripping of the two doors (10, 20) in their relative placement or locked in position relative to the rigid frame (51) to allow the displacement of the two doors (10, 20) without change their relative placement. Gripping device (50) according to the preceding claim, characterized in that it comprises an element (59) of a first docking device (63) intended to place the gripping device (50) relative to a gripping device placement (30) and / or an element (65) of a second docking device (64) intended to place the gripping device (50) relative to a body (2) of the motor vehicle (1). 1/5 2/5