DE102008059166A1 - Adjuster for adjusting adjustment units of motor vehicle, has guide rail having connection elements as assembly aid, where guide rail is resting in pre-assembly condition - Google Patents

Abstract

The adjuster has a guide rail (21) having connection elements as assembly aid. The guide rail is resting in a pre-assembly condition for adjacent transfer during assembling condition at the vehicle part (11), in which the guide rail is curved relative to a starting situation of the guide rail.

Description

The The invention relates to an adjusting device for adjusting a Adjustment part of a motor vehicle according to the preamble of the claim 1 and a method for mounting an adjusting device.

A Such adjusting device has at least one on a vehicle part to be mounted guide rail for guiding the Adjustment of the vehicle part, which is fixed in an assembled state connected to the vehicle part. The adjusting device can For example, as a drive for a sunblind, as a window regulator, as a drive for a trunk or sunroof cover or be designed as a seat adjustment. The adjusting device can - for example, in a single-stranded Cable window lifter - only one guide rail or - for example, a two-stranded Cable window lifters - have two guide rails, along which the adjusting part, in a window lift the window pane, is guided.

in the As part of mounting an adjusting device, the guide rail needs the adjusting device are attached to a vehicle part. For example is a sunblind on a door inner panel one Vehicle door fastened, with the assembly of the sunblind drive conventionally at a wet room of the vehicle door facing side of the door inner panel, an assembly worker while holding the sunblind drive in the wet room and from the Drying room facing side of the door inner panel with the Door inner panel must screw. Because of the sunblind drive Manually held on the door inner panel for mounting must, is a two-handed installation by only one assembly worker difficult.

At one of the DE 42 40 030 A1 known guide rail of a window lifter fastening points are provided, via which the guide rail can be arranged firmly on a door inner panel of a vehicle door. In the area of attachment points of the guide rail hook-shaped mounting aids may be provided to facilitate the mounting process of the guide rail on the inner door panel as suspension and adjustment aids.

From the DE 33 30 221 A1 Known fasteners for releasably connecting two components are each hook-shaped formed on one of the components and engage in associated attachment points on the other of the components.

At one of the DE 198 18 916 A1 known component connection, a first component on one or more connecting portions, which produce a positive connection between the components after reaching through a designated opening of a second component.

at the mounting of a particular made of plastic guide rails, For example, in a guide rail of a sunblind drive, The additional problem may be that the guide rail in an initial state before mounting on a vehicle door is approximately straight, in an assembled state on the vehicle door however, it should be curved to move along an adjustment part a curved path - for example, the sun blind along the curved window pane - to adjust. The guide rail must therefore be curved during assembly and be attached to the assigned vehicle part in this state, which makes assembly even more difficult.

task The present invention is an adjustment with a guide rail and a method for mounting a Adjustment device to provide the assembly a to be bent during assembly guide rail simplify a vehicle part.

These The object is achieved by an object having the features of the claim 1 solved.

there is provided that the guide rail at least one Has connecting element as an assembly aid, the guide rail in a pre-assembly state in which the guide rail curved relative to an initial state of the guide rail is, for subsequent transfer into holding the mounting state latching on the vehicle part.

By providing one or more connecting elements serving as an assembly aid, the mounting of the guide rail of the adjusting device on the assigned vehicle part can be simplified. The guide rail, which may be formed, for example, as an extruded plastic rail, is in an initial state prior to assembly, in which it is straight in its longitudinal direction, for example, and must be bent for mounting on the vehicle part from the initial state in a predetermined manner, to adjust the guide rail of a desired guideway of the adjustment. For this purpose, the guide rail during assembly is first arranged on one or more connecting elements, which serve as an assembly aid on the vehicle part and thus brought into a pre-assembled state in which the guide rail is curved in the desired manner and is held on the vehicle part. The connection via the one or more connecting elements takes place there at rest. Only then is the guide rail transferred to its final mounting state and this, for example, by attaching predetermined screw firmly connected to the vehicle part.

By the provision of the at least one connecting element that the Guide rail in a curved manner in the pre-assembly state before finally fixing the guide rail holds on the vehicle part, the assembly is simplified and can easily in two-handed way by only an assembly worker to be performed. The guide rail is this first detent and in the desired Curved arranged on the vehicle part and then firmly connected to the vehicle part.

The at least one connecting element can, for example, according to Art a hook formed with an opening trained attachment point on the vehicle part form-fitting can be brought into engagement.

alternative the at least one connecting element can also be used as a clip element be formed, with a clip element receiving attachment point on the vehicle part can be brought into positive engagement.

In A kinematic reversal is also conceivable, the at least one Provide connecting element to the vehicle part and with a suitable attachment point to the guide rail for Pre-assembly latching engaged.

through a hook-shaped or a clip-type connecting element is a latching connection of the guide rail with the Vehicle part made, the connection advantageously non-destructive formed releasable. That at least a connecting element provides a positive connection the guide rail with the vehicle part ago by over the attachment point, the vehicle part is engaged behind a positive fit.

Under a latching connection is in this case a positive Connection understood by simple joining, for example using hook-shaped or clip-type fasteners can be produced.

In an advantageous embodiment are two connecting elements provided on the guide rail, along the guide rail spaced apart from each other. For example, a first of these two fasteners at one with an upper end of the guide rail connected housing part of a drive unit of the adjusting device or at one with an upper end of the guide rail be arranged connected bracket. A second connecting element is then spaced, for example, at one with a lower end provided the guide rail connected end piece.

about the fasteners will be the guide rail in the Pre-assembled state in a curved manner on the vehicle part held. The connection of the guide rail with the vehicle part via the fasteners are latching, for example by the hook-shaped connecting elements in each case to an attachment point on Vehicle part are recognized and the guide rail through Moving the adjustment relative to the vehicle part - for example in the vertical direction - is locked to the vehicle part. In locked state, the connecting elements then hold the guide rail so on the vehicle part that the guide rail in desired Is curved, wherein the connecting elements and the associated attachment points for receiving the resetting Bending forces of the guide rail in appropriate Must be designed.

The Connecting elements can also be associated with it Attachment points on the vehicle part are locked, that they are relative be moved to each other. For fasteners known as trained to each other hooks can For example, the fasteners first to the attached attachment points and attached by moving the connecting elements locked to each other with the vehicle part become. Conversely, it is also possible by moving the Connectors away from each other to make the latching.

to Connection of the guide rail with the vehicle part to be the connecting elements attached to assigned attachment points, formed for example as openings in the vehicle part can be and form-fitting of the fasteners be seized. It must be ensured that through the Attachment a wet-dry space separation of the vehicle door is not interrupted. For this purpose, on each connecting element a sealing element may be provided which has an associated attachment point watertight seals and with mounted guide rail a moisture-proof transition between the guide rail and the vehicle part manufactures.

In an adjustment device configured as a sunblind drive or as a power window device, the guide rail can be mounted in the wet room or in the dry space of a vehicle door be. For example, it is possible to arrange the guide rail on a side facing the wet room of the vehicle door side of a door inner panel of the vehicle door and this first to connect via fasteners latching with the inner door panel. Conversely, it is also conceivable to arrange the guide rail on the side facing the drying space side of the door inner panel, wherein in the pre-assembly state, the guide rail is held on the connecting elements on the inner door panel.

• – über mindestens ein an der Führungsschiene angeordnetes Verbindungselement rastend an dem Fahrzeugteil angeordnet wird und sich dann in einem Vormontagezustand befindet, in dem die Führungsschiene relativ zu einem Ausgangszustand der Führungsschiene verkrümmt ist, und
• – anschließend zur Überführung in einen Montagezustand über Befestigungsstellen fest mit dem Fahrzeugteil verbunden wird.

The object is also achieved by a method for mounting an adjusting device on a vehicle part, in which a guide rail for guiding the adjusting part is mounted on the vehicle part by the guide rail

• - Is arranged on at least one arranged on the guide rail connecting element latching on the vehicle part and is then in a pre-assembled state in which the guide rail is curved relative to an initial state of the guide rail, and
• - Is then connected to the transfer to a mounting state via attachment points fixed to the vehicle part.

The Method uses as mounting aids one or more fasteners, for pre-assembly of the guide rail on the vehicle part a latching connection of the guide rail with the vehicle part manufacture, wherein in the preassembled state, the guide rail already curved in the desired manner on the vehicle part is arranged. The connecting elements thus provide one thing the connection of the guide rail with the vehicle part forth and hold the guide rail to the second in her curved state, the connection of the connecting elements with the vehicle part in a suitable manner for receiving the resetting bending forces of the guide rail designed have to be. Only then is the guide rail finally attached to the vehicle part and must be there no longer manually by an assembly worker on the vehicle part but is latched over the connecting elements held on the vehicle part.

Of the The idea underlying the invention is based on the following the embodiments shown in the figures closer be explained. Show it:

1A . 1B Views of a mounted on a door inner panel of a vehicle door sunblind drive;

2 a schematic diagram of a sunblind drive;

3A . 3B Views of a sunblind in an initial state and in a curved pre-assembly state;

4A - 4C Views of differently oriented, hook-shaped fasteners on a sunblind drive;

5A - 5C Views of the arrangements acc. 4A - 4C each in a pre-assembly state;

6 a view of trained as clip elements connecting elements on a sunblind drive;

7 a view of a bracket on a drive unit of a sunblind drive;

8A . 8B Views of a hook-shaped connecting element at an attachment point of a door inner panel of a vehicle door;

9 a view of a form of a clip element connecting element with associated sealing element;

10 a view of a formed as a clip element connecting element and

11A - 11C Views of a hook-shaped connecting element.

1A and 1B show in perspective views a door inner panel 11 a vehicle door 1 in which an adjusting device designed as a sunblind drive for adjusting a sunblinds 2 is arranged. 1A shows here a drying space T of the vehicle door 1 facing side, 1B however, a wet room N of the vehicle door 1 facing side of the door inner panel 11 ,

On the side facing the drying space T, the door inner panel 11 a receiving section 110 for arranging an aggregate carrier on the inner door panel 11 and an opening 111 on, over which the adjusting device 2 in the form of the sunblind drive on the inner door panel 11 can be attached. The adjusting device 2 is over attachment points 113 . 114 . 115 in the wet room N with the door inner panel 11 connected, with a push rod 22 the adjusting device 2 itself for adjusting a sunblind to be connected to the adjusting device through an opening 112 in an upper portion of the door inner panel 11 extends.

Designed as a sunblind Ver adjusting device 2 serves to adjust a sunblind along a window opening of the vehicle door 1 , The adjusting device 2 has for this purpose designed as an extruded plastic tube guide rail 21 in which the push rod 22 is guided, and a drive unit 20 on, which generates an adjusting force for adjusting the sunblinds and the push rod 22 for adjusting the sun blinds drives.

In the area of the opening 112 of the door inner panel 11 becomes the push rod 22 in the wet room N in one with the drive unit 20 connected guide section 21 ' led, for example, from above into the opening 112 of the door inner panel 11 for connection to the drive unit 20 can be inserted.

The free-cutting view according to 2 illustrates the operation of the adjustment 2 , as for example from the DE 10 2006 047 348 A1 is known. The adjusting device 2 is designed as a sunblind drive in the manner of a single-strand cable window lifter and has a cable drum 200 on, which has a drive shaft 201 the drive unit 20 is driven. With the rope drum 200 is a traction device 23 for example, connected in the form of a steel cable extending from the cable drum 200 inside the guide rail 21 (in 2 not shown), with a sliding in the guide rail 21 guided driver 24 is connected, via a lower deflection 25 is deflected and along the guide rail 21 back to the cable drum 200 extends. During operation of the adjusting device 2 displaces the drive unit 20 over the drive shaft 201 the rope drum 200 in a rotary motion, leaving one end of the traction means 23 on the rope drum 200 wound up and the other end of the traction device 23 from the rope drum 200 is handled and the traction means 23 with constant rope loop length in the guide rail 21 shifts. About the driver 24 is the traction device 23 with the push rod 22 coupled, so over the traction means 23 an adjusting force on the push rod 22 and over the push rod 22 to a means of a link 220 with the push rod 22 coupled sunblind is transmitted.

3A and 3B show side views of the adjustment 2 before mounting on the inner door panel 11 the vehicle door 1 ( 3A ) and after mounting in an assembled state ( 3B ). Before mounting on the inner door panel 11 is designed as extruded plastic tube guide rail 21 in an initial state, in which it is straight in its longitudinal direction and the state after manufacturing the guide rail 21 equivalent. In the assembled state, however, shown in 3B , is the guide rail 21 relative to their initial state according to 3A curved, for example, a curved guide track for the push rod to be adjusted 22 to obtain.

The curved in the assembled state guide rail 21 also shows 1A ,

The curvature of the guide rail 21 takes place during assembly of the adjusting device 2 on the door inner panel 11 , wherein the attachment to the inner door panel 11 on the one hand for holding the adjusting device 2 on the door inner panel 11 and on the other hand for receiving the restoring bending forces of the guide rail 21 must be designed.

To the assembly of the adjusting device 2 on the door inner panel 11 To simplify, are connecting elements on the guide rail 21 provided, which serve as an assembly aid and the guide rail 21 in a preassembly state for subsequent transfer to the mounting state according to 3B latching hold on the vehicle part, wherein the connecting elements are designed so that they are the guide rail 21 already in a pre-assembled condition in a curved manner.

Embodiments of hook-shaped connecting elements 3a - 3c . 4a - 4c are in 4A to 4C shown. In 4A to 4C is the adjustment device 2 in each case before mounting on the inner door panel 11 , while 5A to 5C each represents the pre-assembly state.

At the guide rail 21 are each two connecting elements 3a - 3c . 4a - 4c arranged, wherein an upper connecting element 3a - 3c on a housing part 202 the drive unit 20 and a lower connecting element 4a - 4c at one with the guide rail 21 connected tail 250 is provided. The tail 250 is for example at the end of a lower end of the guide rail 21 attached and contains the diversion 25 for deflecting the traction device 23 ,

The embodiments according to 4A to 4C . 5A to 5C differ by the orientation of the hook-shaped connecting elements 3a - 3c . 4a - 4c , In the embodiment according to 4A . 5A are the two on the guide rail 21 arranged, hook-shaped connecting elements 3a . 4a each directed downwards. For the arrangement of the adjusting device 2 on the door inner panel 11 become the fasteners 3a . 4a at openings formed as openings on the inner door panel 11 set and by moving the adjustment 2 locked down with the attachment points. The connecting elements 3a . 4a pass through the attachment points and provide a positive connection of Verstellvorvor direction 2 with the door inner panel 11 here, where, as in 5A shown, in the preassembled state, the guide rail 21 curved on the door inner panel 11 (please refer 3B ) is held.

In the embodiment according to 4B . 5B are the hook-shaped connecting elements 3b . 4b aligned so that they point to each other. Again, the adjustment 2 over the fasteners 3b . 4b on the door inner panel 11 preassembled by the fasteners 3b . 4b at attachment points on the inner door panel 11 be set. The locking of the connecting elements 3b . 4b with the door inner panel 11 takes place in that the connecting elements 3b . 4b towards each other and thereby moved around the fastening points are moved relative to the attachment points. To move the fasteners 3b . 4b can the housing part 202 and / or the tail 250 relative to the guide rail 21 be slidable, so that the distance between the fasteners 3b . 4b for locking with the attachment points on the inner door panel 11 can be reduced. The adjusting device 2 in its curved pre-assembly state is in 5B shown.

In the embodiment according to 4C . 5C are the fasteners 3c . 4c aligned so that they point away from each other. In this case, the fasteners 3c . 4c with the door inner panel 11 latched by the fasteners 3c . 4c be moved away from each other by the housing part 202 and / or the tail 250 relative to the guide rail 21 to be moved. 5C again shows the adjustment 2 in its pre-assembly state with curved guide rail 21 ,

As in 3B is indicated, the curvature of the guide rail 21 by conditioning the guide rail 21 on the door inner panel 11 established. By the positive engagement of the connecting elements 3a - 3c . 4a - 4c with the door inner panel 11 becomes the guide rail 21 in the preassembled state in a curved manner on the inner door panel 11 held, with the fasteners 3a - 3c . 4a - 4c for receiving the restoring bending forces of the guide rail 21 must be designed.

In the embodiments according to 4A to 4C . 5A to 5C are the fasteners 3a - 3c . 4a - 4c such on the adjustment 2 arranged that the adjusting device 2 on a side facing the drying chamber T side of the door inner panel 11 can be fixed, so that a cumbersome installation of the adjustment 2 in the wet room N of the vehicle door 1 is not required.

6 shows an embodiment of the guide rail 21 arranged connecting elements 3d . 4d , which are designed as clip elements and a latching connection of the guide rail 21 with the door inner panel 11 the vehicle door 1 by a clip-like engagement in corresponding attachment points of the inner door panel 11 produce. Again, there is an upper connection element 3d on the housing part 202 the drive unit 20 the adjusting device 2 and a lower connecting element 4d on the tail 250 arranged.

In the embodiment according to 7 is an upper connecting element 3e on a bracket 26 arranged, the drive unit 20 encompasses and attachment points 261 . 262 for firm connection of the adjusting device 2 with the door inner panel 11 having. The connecting element 3e is designed as a clip element and passes through in the pre-assembled state a correspondingly designed as an opening attachment point of the inner door panel 11 , An analogously designed connecting element 4e can be at the lower end of the guide rail 21 be arranged.

Schematic detail views of a hook-shaped connecting element 3f . 4f demonstrate 8A and 8B , The hook-shaped connecting element 3f . 4f has a pin 30 with a notch open at the bottom 31 on and becomes the connection with the door inner panel 11 in an opening formed as an attachment point 116 used. For locking the connecting element 3f . 4f moved down (see 8B ), so the notch 31 with the edge of the attachment point 116 engages and the connecting element 3f . 4f positive fit at the attachment point 116 is held.

At the connecting element 3f . 4f is a sealing element 5 arranged, sealing between the connecting element 3f . 4f and the door inner panel 11 acts and thus a moisture-proof transition between the guide rail 21 and the door inner panel 11 manufactures. The sealing element 5 is annular and surrounds the pin 30 of the connecting element 3f . 4f , wherein the annular sealing element 5 is designed so wide that even with shifted connecting element 3f . 4f the sealing element 5 circumferentially still reliably sealing the door inner panel 11 is present (see 8B ).

The pin 30 of the connecting element 3f . 4f may for example have a diameter between 6 and 7 mm in a circular cross-section. The diameter of the opening formed as an attachment point 116 is slightly larger, so that the pin 30 through the opening of the attachment point 116 can be passed. The score 31 may for example have a depth of 2 to 3 mm.

A detailed view of a clip element designed as a connecting element 3g . 4g is in 9 shown. The connecting element 3g . 4g engages with a locking element 32 one for receiving the locking element 32 designed attachment point 116 of the door inner panel 11 and holds the guide rail 21 latching to the door inner panel 11 , At the connecting element 3g . 4g is an annular sealing element 5 formed, which is the attachment point 116 waterproofing seals.

In the embodiment according to 10 is the connecting element 3h . 4h designed as a clip element and has a with the guide rail 21 or a housing part 202 or a tail 250 connected holding part 33 on, on which a locking piece 34 is arranged clipend. The locking piece 430 passes through a for receiving the locking piece 34 designed attachment point 116 on the door inner panel 11 and provides a positive connection with the inner door panel 11 ago. At the locking piece 34 is a sealing element 35 arranged (for example in one piece in the form of a locking piece 34 molded sealing lip), between the holding part 33 and the door inner panel 11 for moisture-proof sealing of the attachment point 116 acts.

In the embodiment according to 11A to 11C has a connection element 3i . 4i a hook element 36 on, which is an opening formed as an attachment point 116 on the door inner panel 11 be upheld. The connecting element 3i . 4i represents the sectionally flexible, formed for example of plastic hook element 36 a clip-on connection with the inner door panel 11 ago, where the hook element 36 is designed so flexible that it, as in 11B represented by the attachment point 116 can be performed and imported, as in 11A shown, the attachment point 116 engages positively.

Of the The idea underlying the invention is not on the foregoing limited embodiments described, but can also be completely different Realize embodiments. In particular, are thorough different types of connecting elements conceivable, the latching between a guide rail to be mounted and a vehicle part Act.

moreover Although the invention is based on a sun blind drive trained adjusting device has been described everywhere Can be used where a guide rail in a curved Way is to be arranged on a vehicle part. The connecting elements simplify the installation of such a guide rail on the vehicle part then in that it the guide rail in a curved manner in a pre-assembly state for subsequent final assembly to the vehicle part.

1

vehicle door

11

Inner door panel

110

receiving portion

111

opening

112

opening

113 114, 115

fastening point

116

fastening point

2

adjustment

20

drive unit

200

cable drum

201

drive shaft

202

housing part

21

guide rail

21 '

guide section

22

pushrod

220

link

23

traction means

24

takeaway

25

redirection

250

tail

26

bracket

260

connecting element

261 262

fastening point

3a-3i 4a-4i

connecting element

30

spigot

31

score

32

locking element

33

holding part

34

locking piece

35

sealing element

36

hook element

5

sealing element

N

wet room

T

drying room

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4240030 A1 [0004]
• - DE 3330221 A1 [0005]
• - DE 19818916 A1 [0006]
• DE 102006047348 A1 [0041]

Claims (12)

Adjustment device for adjusting an adjustment part of a motor vehicle, with a guide rail to be mounted on a vehicle part for guiding the adjustment part on the vehicle part, which is fixedly connected to the vehicle part in an assembly state, characterized in that the guide rail ( 21 ) at least one connecting element ( 3a - 3i . 4a - 4i ) as an assembly aid, the guide rail ( 21 ) in a pre-assembly state in which the guide rail ( 21 ) relative to an initial state of the guide rail ( 21 ) is curved, for subsequent transfer into the mounting state latching on the vehicle part ( 11 ) holds. Adjusting device according to claim 1, characterized in that the guide rail ( 21 ) is designed as a plastic rail, in particular as an extruded plastic rail. Adjusting device according to claim 1 or 2, characterized in that the at least one connecting element ( 3a - 3c . 3f . 3i . 4a - 4c . 4f . 4i ) is designed in the manner of a hook which is connected to an attachment point ( 116 ) on the vehicle part ( 11 ) is positively engageable engageable. Adjusting device according to claim 1 or 2, characterized in that the at least one connecting element ( 3d . 3e . 3g . 3h . 4d . 4e . 4g . 4h ) is designed as a clip element which is connected to an attachment point ( 116 ) on the vehicle part ( 11 ) is positively engageable engageable. Adjusting device according to one of the preceding claims, characterized in that the guide rail ( 21 ) two connecting elements ( 3a - 3i . 4a - 4i ), which along the guide rail ( 21 ) are spaced from each other. Adjusting device according to claim 5, characterized in that a first connecting element ( 3a - 3i ) at one with an upper end of the guide rail ( 21 ) connected housing part ( 202 ) a drive unit ( 20 ) of the adjusting device ( 2 ) or at one with an upper end of the guide rail ( 21 ) connected bracket ( 26 ) and a second connecting element ( 4a - 4i ) at one with a lower end of the guide rail ( 21 ) connected end piece ( 250 ) is arranged. Adjusting device according to claim 5 or 6, characterized in that the connecting elements ( 3a . 4a ) by attaching to each attachment point ( 116 ) and shifting the adjusting device ( 1 ) relative to the vehicle part ( 11 ) with the vehicle part ( 11 ) are latched. Adjusting device according to one of claims 5 to 7, characterized in that the connecting elements ( 3b . 4b ; 3c . 4c ) by attaching to each attachment point ( 116 ) and moving the connecting elements ( 3b . 4b ; 3c . 4c ) relative to each other with the vehicle part ( 11 ) are latched. Adjusting device according to one of the preceding claims, characterized in that on the at least one connecting element ( 3a - 3i . 4a - 4i ) a sealing element ( 5 ; 35 ) for the moisture-tight sealing of an associated fastening point ( 116 ) of the vehicle part ( 11 ) is arranged. Adjusting device according to one of the preceding claims, characterized in that the guide rail ( 21 ) on a dry space (T) of a vehicle door ( 1 ) facing side of a door inner panel ( 11 ) of the vehicle door ( 1 ) is arranged. Adjusting device according to one of the preceding claims, characterized in that the adjusting device ( 2 ) is designed as a sunblind drive. Method for mounting an adjusting device ( 2 ) on a vehicle part ( 11 ), in which a guide rail ( 21 ) for guiding the adjusting part ( 22 ) on the vehicle part ( 11 ) is mounted by the guide rail ( 21 ) - at least one on the guide rail ( 21 ) arranged connecting element ( 3a - 3i . 4a - 4i ) latching on the vehicle part ( 11 ) and is then in a pre-assembly state in which the guide rail ( 21 ) relative to an initial state of the guide rail ( 21 ) is curved, and - subsequently for transfer into a mounting state ( 21 ) via attachment points ( 113 . 114 . 115 ) fixed to the vehicle part ( 11 ) is connected.