FR3011217A1 - DEVICE AND METHOD FOR ADJUSTING AN OPENING ON A CAR VEHICLE BOX - Google Patents

Abstract

The invention relates to a device (26) for adjusting an opening (4) on a body (2) of a motor vehicle, comprising fastening means (28a) at a rebate at the edge of the opening (4). or the body (2) and elastic means (30) able to deform in contact with the body (2) or the opening (4), respectively. The invention also relates to a method of adjusting an opening (4) comprising placing at least one adjustment device (26); positioning the opening in a vertical direction, the pivot axes of the hinge yokes of the opening on the body being movable vertically; and clamping said axes on the yokes.

Description

DEVICE AND METHOD FOR ADJUSTING AN OPENING ON A VEHICLE OF A MOTOR VEHICLE. The invention relates to the field of assembly of motor vehicles, including the mounting of bodywork elements such as openings. More particularly, the invention relates to the adjustment of an opening pivotally mounted via hinges on a vehicle body. The published patent document FR 2 952 024 A1 discloses a method of adjusting an opening such as a boot lid. The method involves mounting and adjusting the gooseneck hinges on the vehicle body and then mounting the door on the hinges in question. Specifically, the adjustment along the axes x (longitudinal), y (transverse) and z (vertical) is operated via a template ensuring iso-statics hinges. The adjustment in the x and y directions is ensured by the clearance between the fixing holes of the plates of the fixed yokes of the hinges and the fixing screws passing through them. The z-direction adjustment is ensured by z-displacement of the pivot axis of the hinges on the yokes. This adjustment method is interesting in that it facilitates the process of adjusting an opening to be pivotally mounted via hinges. However, it does not include the effect of the elastic forces of the seals or sealing profiles. Indeed, it is known that the opening of a motor vehicle contact the body on almost their entire perimeter via one or more joints, including elastomeric sections of closed section, such as a tube. Such profiles can exert significant resulting effort, may slightly change the final position of the opening after adjustment bare box. The invention aims to propose a solution to the problem encountered by the state of the art as mentioned above. More particularly, the invention aims to provide a solution to the mounting and adjustment of an opening on a vehicle body, which overcomes the disruptive effect of the sealing profile. The invention relates to a device for adjusting an opening on a motor vehicle body, remarkable in that it comprises: fastening means to a rabbet at an edge of the opening or the body; elastic means able to deform in contact with the body or the opening, respectively.

The elastic means are configured to simulate the elastic force of a sealing profile. According to an advantageous embodiment of the invention, the fixing means are configured to cooperate by clamping with two main and opposite faces of the rabbet of the opening or the body. According to an advantageous embodiment of the invention, the fixing means comprise a slot adapted to receive the rebate of the opening or the box and preferably means for clamping said rabbet in said slot. According to an advantageous embodiment of the invention the elastic means comprise a compression spring in a direction generally perpendicular to the mean plane of the rabbet. According to an advantageous embodiment of the invention, it comprises a contact element fixed to the elastic means, said element preferably being generally cylindrical.

The invention also relates to a method of adjusting an opening on a motor vehicle body, comprising the steps (a) of positioning the opening relative to the body by means of a template, and (b) clamping on the box of the hinge covers of the opening; and remarkable by the following steps: (c) opening of the opening and the establishment of at least one adjustment device on a rabbet at the edge of the opening or on a rabbet of the box, intended to support a seal sealing with the opening, or the adjustment device simulating the elastic force of the seal and preferably being in accordance with the invention; (d) closing and positioning the opening by means of a template; and (e) clamping on the clevises of the pivot axes of the hinges.

According to an advantageous embodiment of the invention, the setting in position in step (d) is in a predominantly vertical direction. According to an advantageous embodiment of the invention, at least two adjustment devices are used in step (c), said devices being distributed symmetrically with respect to a longitudinal central axis of the vehicle.

According to an advantageous embodiment of the invention, the hinges are configured to allow adjustment of their pivot axes in a predominantly vertical direction. According to an advantageous embodiment of the invention, the opening is a luggage compartment lid, the adjustment device or devices being arranged along the lower edge of the trunk lid. According to an advantageous embodiment of the invention, steps (d) and (e) take place in the absence of the sealing profile. The measures of the invention are interesting in that they allow to proceed to a precise adjustment of the opening at the stage of the shoeing of the body, this setting anticipating the resilient forces resistant to or sealing profiles. Other features and advantages of the present invention will be better understood from the description and the drawings, in which: FIG. 1 is a perspective view of the rear part of a motor vehicle body, more particularly of a luggage compartment cover of the said vehicle; - Figure 2 is a section of a sealing zone between the opening and the corresponding portion of the vehicle body of Figure 1; - Figure 3 is a perspective profile view of the vehicle body of Figure 1, illustrating the opening and its interaction with a hinge type gooseneck; - Figure 4 is an illustration of a first adjustment in the directions x, y and z of the opening of Figures 1 to 3; - Figure 5 is a perspective view of an adjusting device according to the invention; - Figure 6 is a sectional view of the sealing zone between the opening and the body during the second setting of the opening according to the invention; Figure 7 is a rear view of the opening of Figures 1 to 3 and 6 equipped with a template for the second adjustment of the opening in a z direction, according to the invention; FIG. 8 is a perspective view of a clevis for fixing a hinge illustrating an adjustment orifice in z of the opening. Figure 1 illustrates the rear part of the body 2 of a motor vehicle. It comprises a luggage compartment cover 4 pivotally mounted by means of two gooseneck hinges (not visible). These hinges each comprise a yoke 8 attached to a rear crossmember 6 of the body 2. During the constitution of the body, commonly known as forging, various elements are assembled including welding, gluing and / or screwing. In this case, the opening that constitutes the luggage compartment cover is assembled by screwing via its hinges. A precise adjustment is required to fulfill its functions of closing the luggage compartment as well as an aesthetic function.

15 When fitting the box, the seals are not yet installed on the box. FIG. 2 schematically illustrates the effect of elastic deformation and generation of elastic force when the sash 4 is closed. FIG. 2 is a diagrammatic sectional view of the lower edge of the sash 4 and the body portion comprising a rabbet 12 joining two sheets of the body 20 2, paved by a sealing profile of the elastomeric tube type 10. It is possible to observe the deformation of the profile during the closing of the opening 4 and to conclude that this deformation, occurring throughout the length of the profile, generates a significant elastic force. It has been found that this force influences the positioning of the opening in the closed position with respect to its positioning without the sealing profile. The invention provides an assembly method consisting essentially of a first adjustment of the opening on the body in at least the longitudinal (commonly referred to as x-axis of the vehicle) and transverse (commonly referred to as the y-axis of the vehicle) directions, and then a second adjustment in the vertical direction (commonly referred to as the z-axis of the vehicle).

301 1 2 1 7 5 Figures 3 and 4 illustrate this first setting. More precisely, FIG. 3, which is a side view of the vehicle body rear part of FIG. 1, explodedly shows the body 2, the opening 4 and one of the hinges 14 in the gooseneck. The hinge 14 comprises a yoke 8 intended to be fixed to the crosspiece 6 of the body 2, 5 an arm 18 shaped gooseneck and a mounting plate 16 to the opening 4. The arm 18 is pivotally mounted on the yoke 8 and is rigidly connected to the fixing plate 16. The curved shape of the arm allows it to bypass the crossbar 6 on the pivoting amplitude of the opening 4. During the shoeing of the body, the hinges 14 can be fixed to the box by means of their yokes 8, the opening being then placed in position by means of a support. This positioning may correspond to a partially open position of the opening, able to allow access to its inner face at the fixing areas of the plates of the hinges. These plates can then be fixed to the opening, in particular by screwing. The opening is then fixed to the box.

In this state, its position with respect to the body is not yet adjusted. Fastening means, screw type, clevises to the body are not yet tightened at this stage. The yokes and their fastening means to the body are configured to allow adjustment in the mean plane of the mounting plate, essentially in the directions x and y. The maximum amplitude of this adjustment may be between 0.5 mm and 10 mm, preferably between 1 mm and 5 mm, in each of the x and y directions. Figure 4 is a schematic elevational illustration of the rear part of the vehicle body of Figures 1 and 3 during the first adjustment. According to Figure 4, the opening is positioned relative to the box in the directions x, y and z 25 means a template. The latter is represented diagrammatically by the positioning elements 20, 22 and 24 in FIG. 4. The positioning elements 20 act on a substantially vertical rear part of the opening and of the box so as to ensure an adjustment according to the direction x. The positioning elements 22 act on the predominantly horizontal portion of the opening 4 and the body 2, laterally on either side of the opening 4. These means provide an adjustment in the direction z. The positioning means 24 act on side faces of the opening 4 and the body 2 so as to adjust the opening in the y direction. The positioning means may take various forms and include gripping means such as suction cups and abutting contact means with the outer surface of the vehicle body. Such means are well known to those skilled in the art. Once the position of the opening defined in FIG. 4, the fixing means hinge clevises can be tightened so as to fix their positions on the body. The second adjustment of the opening is illustrated in FIGS. 5 to 8. This second adjustment involves the use of one or more adjustment devices 26 as illustrated in FIGS. 5 and 6. FIG. as such. It essentially comprises a base 28 with fastening means 28a to a rabbet, a spring 30 and a contact member 32. The fastening means 28a may comprise a slot for fitting the rabbet in question, such as that of a free edge of the opening. Figure 6 is a schematic sectional view of the lower edge of the opening 4 and 15 of a sheet of the body 2 vis-à-vis the edge in question. It can be observed that the adjustment device is mounted on the opening. More particularly, the base 28 shoes the lower free edge of the opening. This edge is close to the contact area of the sealing profile (see Figure 2). The adjusting device then extends substantially perpendicularly to the mean plane of the wall portion forming the edge of the opening and comes into contact with the sheet of the body vis-à-vis the edge. The device 26 is thus configured to simulate the resilient force resistance of the sealing profile discussed previously (see Figure 2). Since the contact element 32 comes into contact with the body 2 when the sash is closed, the spring 30 compresses and exerts a resistant force on the sash, in an identical manner or at least very similar to the profile of the sash. seal. It should be noted that several devices can be arranged along the border between the zone of the opening coming into contact with the sealing profile and the corresponding zone of the body. The second adjustment is then to open the opening, to have one or more adjustment devices as described above, to close the opening, to position it in the direction z at its rear face and to set the height of the pivot axis of the hinges at the clevises. The positioning of the opening 4 in the direction z is operated by means of a template 34 cooperating with the rear face of the opening and with the corresponding rear side faces of the body. The purpose of this template is to maintain the opening in the z direction in a position where it is in accordance with the corresponding side portions of the body. In this case, the template cooperates with the housing of the taillights 36 so as to anchor on the body and exert a force on the opening towards its closure, so as to compress the adjustment devices (not visible in Figure 7). Adjustment means may be provided on the template 34 so as to be able to align along the line Y of a substantially horizontal reference edge of the box and an edge of the opening intended to be aligned with this edge. During the second adjustment, the pivot axes of the hinge arms can move substantially freely in a predominantly vertical direction (z direction), as shown in Figure 8. The receiving hole of said axes on the yokes can indeed oblong substantially vertically, so as to allow adjustment over a limited range, for example between 0.5 mm and 5 mm. The position of the pivot axis (not shown) can then be fixed relative to the yoke, in particular by clamping in the direction of the axis. Once the pivot axes of the hinge arms fixed on the yokes, the opening is then set. It can be reopened, adjusting devices can be removed and retrieved for the next vehicle. Further in the manufacturing process of the vehicle, when the sealing profile is mounted on the body and / or on the opening, the position of the opening in the closed position will be in accordance with that obtained during the adjustment that comes from to be described, despite the resistant elastic force of the profile.

Claims (10)

REVENDICATIONS1. Adjusting device (26) for an opening (4) on a body (2) of a motor vehicle, characterized in that it comprises: fastening means (28a) at a rebate at the edge of the opening (4) or the box (2); elastic means (30) adapted to deform in contact with the body (2) or the opening (4), respectively. 2. Adjusting device (26) according to claim 1, characterized in that the fastening means (28a) are configured to cooperate by clamping with two main faces and opposite the rabbet of the opening (4) or the body (2). 3. Adjusting device (26) according to one of claims 1 and 2, characterized in that the fastening means comprises a slot (28a) adapted to receive the rabbet of the opening (4) or the body (2). ) and preferably means for clamping said rabbet in said slot. 4. Adjusting device (26) according to one of claims 1 to 3, characterized in that the elastic means comprises a compression spring (30) in a direction generally perpendicular to the mean plane of the rabbet. 5. Adjusting device (26) according to one of claims 1 to 4, characterized in that it comprises a contact element (32) fixed to the elastic means (30), said element preferably being generally cylindrical. 6. A method of adjusting an opening (4) on a body (2) of a motor vehicle, comprising the following steps: (a) positioning of the opening (4) relative to the body (2) by means of 'a template ; (b) clamping on the body (4) of the yokes (8) hinges (14) of the opening; characterized by the steps of: (c) opening the sash (4) and placing at least one adjusting device (26) on a rebate at an edge of the sash (4) or on a rebate the box (2) intended to support a sealing profile with the sash, the adjustment device or devices (26) simulating the elastic force of the sealing profile, and preferably being in accordance with one of the claims 1 to 5; (d) closing and positioning the opening (4) by means of a jig (34); (e) clamping on the clevises (8) of the pivot axes of the hinges (14). 7. Method according to claim 6, characterized in that the setting in position in step (d) is in a predominantly vertical direction. 8. Method according to one of claims 6 and 7, characterized in that the hinges are configured to allow adjustment of their pivot axes in a predominantly vertical direction. 9. Method according to one of claims 6 to 8, characterized in that the opening is a luggage compartment lid, or the adjustment devices being arranged along the lower edge of the trunk lid. 10. Method according to one of claims 6 to 9, characterized in that steps (d) and (e) occur in the absence of the sealing profile.