Door assembly for a vehicle door

Abstract

The invention relates to a door assembly for a vehicle door of a motor vehicle, having a frame-like door inner part (2) with a frame cutout (6) and a door module (10) which is mounted on the door inner part (2), wherein the door module (10) has a unit carrier (12) and at least one unit (12a) fastened thereto, and wherein the unit carrier (12) is fastened to an A pillar (2b) of the door inner part (2), to a B pillar (2c) of the door inner part (2) and / or to a door base (2d) of the door inner part (2).

Description

[0001] Description

[0002] Door assembly for a vehicle door

[0003] The invention relates to a door assembly for a vehicle door, in particular for a vehicle door of a motor vehicle, comprising a particularly frame-like inner door part with a door module mounted thereon. The invention further relates to a door module for such a door assembly, a vehicle door with such a door assembly, and a method for assembling the door assembly.

[0004] A vehicle door of a motor vehicle (motor vehicle door) typically comprises a particularly frame-like inner door part, also referred to as a door shell, an outer door panel forming the outer door skin, and optionally an inner door panel. The inner door part, connected to the outer door panel, typically comprises two spaced-apart, opposite side frame sections (A-pillar of the door, B-pillar of the door), a connecting sill section, and a lower sill section (door bottom).

[0005] The parapet section oriented in the vehicle's longitudinal direction (X direction in the vehicle coordinate system), together with the side frame sections oriented in the direction of the vehicle height (Z direction in the vehicle coordinate system) and the sill section running in the X direction that connects these to the underside of the door, delimits a frame cutout (door cutout) of the inner door part. This frame cutout serves as assembly access to the door shaft and, when the vehicle door is assembled, is at least partially, preferably completely, covered by a plate-like or plate-shaped unit carrier (door module carrier, functional carrier) of a door module. Various functional components of the vehicle door, in particular a window lifter or at least its respective guide rail, can be pre-assembled on the unit carrier. The section connected to the unit orThe door module carrier pre-assembled with the units, which is also referred to as a door module, in particular its unit carrier, serves in particular to separate a wet space formed between the outer door panel and the door module from a dry space formed between the door module (door module carrier) and the inner door panel or the inner door panel of the vehicle door, in particular for moisture-sensitive functional components of the door module.

[0006] Figure 1 shows a representation of a door inner part 2 according to the prior art. This has a flange 4 (Y-flange) oriented perpendicularly and / or substantially perpendicularly to a direction referred to as the Y-direction. The flange 4 has fastening points 8 in the area of ​​the circumference of a recess 6 (frame cutout), which are provided for attaching an assembly carrier of a door module.

[0007] The flange 4 thus delimits the recess 6. This serves to allow units attached to the unit carrier, such as a window lifter, a door lock, and / or a door drive, to be introduced into the door shaft 14 formed and / or delimited by the inner door part 2 and the outer door panel (not shown in detail). In summary, the door module, in particular its unit carrier, covers the flange 4 with respect to the Y-direction, thus the flange 4 and the door module are arranged one behind the other in the Y-direction.

[0008] If an assembly is pre-assembled on the assembly carrier, and in particular if this assembly projects beyond the assembly carrier in a direction perpendicular to the Y direction and / or is arranged in the wet room, complex assembly and threading kinematics arise when mounting the door module on the door interior. For example, individual components of the door module and / or the door interior must be pre-tensioned if necessary. In this configuration, automated assembly is extremely difficult or even impossible. The invention is based on the object of specifying a particularly suitable door assembly for a vehicle door of a motor vehicle. The invention is further based on the object of specifying a particularly suitable door module, a vehicle door, and a method for assembling the door assembly.

[0009] With regard to the door assembly, the object is achieved according to the invention by the features of claim 1, with regard to the door module by the features of claim 3, with regard to the vehicle door by the features of claim 8, and with regard to the method by the features of claim 9. Advantageous embodiments and further developments are the subject of the dependent claims (subclaims). The advantages and embodiments cited with regard to the door assembly are also transferable mutatis mutandis to the door module, the vehicle door, and / or the method, and vice versa.

[0010] The conjunction “and / or” is to be understood here and in the following in such a way that the features linked by this conjunction can be formed both together and as alternatives to one another.

[0011] The door assembly according to the invention is intended for a vehicle door, in particular for a vehicle door of a motor vehicle (motor vehicle door), preferably for a side door, and is suitable and configured therefor.

[0012] The following provides information regarding the spatial directions, particularly in a motor vehicle coordinate system (vehicle coordinate system), for an example installation situation of the door assembly in a side door. The abscissa axis (X-axis, X-direction) is oriented along the vehicle's longitudinal direction (direction of travel), the ordinate axis (Y-axis, Y-direction) along the vehicle's transverse direction, and the applicate axis (Z-axis, Z-direction) along the vehicle height.

[0013] The door assembly has a frame-like inner door part that defines a frame cutout (door cutout), and a door module mounted on the inner door part. The inner door part has a parapet section oriented in the vehicle's longitudinal direction (X direction in the vehicle coordinate system), in particular extending in this direction, which, together with two lateral frame sections oriented in the direction of the vehicle height (Z direction in the vehicle coordinate system) and with a sill section (door base) connecting these to a door underside and extending in the X direction, delimits or frames the frame cutout. The front lateral frame section in the X direction is referred to as the A-pillar of the door, and the rear lateral frame section in the X direction is referred to as the B-pillar of the door.

[0014] The door module comprises an assembly carrier (functional carrier, door module carrier) and at least one pre-assembled assembly mounted thereon, which may be, for example, a door lock, a door drive, a door brake, or a window lifter. The assembly carrier is mounted on the interior door panel as a wet / dry compartment divider. In particular, the assembly carrier (assembly carrier) covers and / or closes the frame cutout.

[0015] The subframe is attached to the A-pillar of the interior door section, the B-pillar of the interior door section, and / or the door floor of the interior door section. For this purpose, a fastening element is used that joins the A-pillar, the B-pillar, and / or the door floor to the subframe.

[0016] Suitably, the unit carrier additionally or alternatively has a, for example plate-shaped, support section (support section) for fastening the unit, wherein, in particular on the circumference of the support section, a fastening section protruding into a door shaft for mounting the unit carrier on the A-pillar, on the B-pillar and / or on the door base, in particular in the Y-direction, protrudes upwards with respect to the support section.

[0017] In the assembled state, the fastening section is located on the inside of the A-pillar, the B-pillar, and / or the door base facing the door shaft. The fastening element, for example a screw or rivet, expediently extends through the A-pillar, the B-pillar, and / or the door base and / or extends in a direction perpendicular to the Y-direction.

[0018] It is advisable for the fastening section to be oriented parallel to the A-pillar, the B-pillar and / or the door base, at least in sections.

[0019] Additionally or alternatively, the unit carrier has a stiffening element to increase the rigidity, in particular of the door assembly and / or the door module, preferably in the region of the fastening section and / or on the fastening section.

[0020] The aggregate support, particularly in plate form, can be a plastic part or can be formed entirely or largely from organic sheet. Such an organic sheet is typically a continuous fiber-reinforced thermoplastic, in which continuous fibers in the form of non-crimp, woven, or knitted fabrics, for example made of glass or plastic fibers, are embedded in a thermoplastic matrix. Polyamide, for example, is a suitable thermoplastic for the matrix, particularly due to its good adhesion properties to the fibers. If such an aggregate support is additionally reinforced by shaping or incorporated or applied structural elements, such a door module is often also referred to as a structural module.

[0021] The vehicle door according to the invention has a door assembly as described above.

[0022] A further aspect of the invention relates to a method for assembling a door assembly, which is designed in particular according to one of the variants presented above. In this case, the door module, in particular its fastening section, is introduced, in particular plugged, into the door shaft, in particular without tension, i.e. without pre-tensioning a component of the door assembly. Additionally or alternatively, the unit carrier is fastened to the A-pillar of the inner door part, to the B-pillar of the inner door part, and / or to the door base of the inner door part. In particular, the unit carrier is not mounted by means of a Y-flange of the inner door part arranged thereon, but rather to the A-pillar, the B-pillar and / or the door base itself.

[0023] In addition or alternatively, after the door module has been arranged, in particular after it has been fastened, on the inside of the door, an assembly, for example the door lock or a door drive, is expediently adjusted, in particular in or against the X-direction, from a pre-assembly position, in particular towards the A-pillar or the B-pillar, into an end position.

[0024] The new separation significantly simplifies assembly and allows for automatic door assembly purely in the vehicle's Y direction. For example, assembly takes place without any pivoting movement when inserting the door module and its components into the door shaft of the interior door section and / or pre-tensioning components of the door assembly.

[0025] Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. In the drawings:

[0026] Fig. 1 shows an interior part of a vehicle door according to the prior art,

[0027] Fig. 2 shows an inner door part of a door assembly according to the invention, and

[0028] Fig. 3 shows a sectional view of the door assembly.

[0029] Corresponding parts and sizes are always provided with the same reference symbols in all figures.

[0030] Fig. 2 shows an inner door part 2 according to the invention. The inner door part 2 and a door module 10 (Fig. 3) together form a door assembly for the vehicle door. The frame-like inner door part 2 has a parapet section 2a oriented in the vehicle longitudinal direction (X direction in the vehicle coordinate system), which, together with two lateral frame sections 2b, 2c oriented in the direction of the vehicle height (Z direction in the vehicle coordinate system), and with a sill section (door bottom, stiffening plate) 2d connecting these to a door underside and running in the X direction, delimits or frames the recess 6. The front frame section 2b with respect to the X direction is also referred to as the A-pillar 2b of the door, and the rear frame section 2c in the X direction is referred to as the B-pillar 2c of the door.

[0031] The door assembly further comprises the door module 10 (Fig. 3), which is mounted on the door inner part 2 in the region of the frame cutout 6. The door module 10 comprises an assembly carrier 12 and at least one assembly 12a pre-mounted thereon, such as the window lifter, the door lock, and / or the door drive.

[0032] In comparison to the inner door part 2 of Fig. 1, the inner door part 2 according to the invention preferably does not comprise a Y-flange. For example, if one was previously present, it is cut off. This advantageously facilitates accessibility and / or an assembly process of the door module 10. For example, the frame section 2b and / or the frame section 2c and / or the door base 2d has a Y-flange oriented perpendicular to the Y-direction. However, compared to the inner door part of Fig. 1, this is comparatively small and serves, for example, to increase rigidity, i.e., not for assembly of the door module. For example, this comparatively small flange remains when the Y-flange is cut off to form a frame cutout.However, its extension in the plane perpendicular to the Y direction from the respective frame section (door sill 2a, A-pillar 2b, B-pillar 2c and / or door bottom 2d) is preferably less than 5 cm, for example less than 3 cm, in particular less than 1 cm. In the sectional view shown in Fig. 3 with a sectional plane III corresponding to that of Fig. 2, a section of the door module 10 is shown in the assembled state on the door inner part 2, in particular on its B-pillar 2c.

[0033] The assembly carrier comprises a support section 16, for example, a plate-shaped support section, for fastening the assembly 12a. A fastening section 18 protrudes at least partially from the support section 16 and projects into a door shaft 14 for mounting the assembly carrier 12 on the B-pillar 2c.

[0034] The statements regarding Fig. 3 optionally apply analogously to a fastening of the door module 10 to the door base 2d and / or to a fastening of the door module 10 to the A-pillar 2b. Thus, the door module 10 is joined to the door base 2d and / or to the A-pillar 2b by means of the fastening section 18 or another fastening section 18.

[0035] For example, the fastening section 18 is designed as a flange that is rotated, for example by 90°, relative to the support section 16.

[0036] The fastening section is attached to the B-pillar 2c by means of a fastening element 22, for example a screw, a rivet, or a bayonet. This element extends through the B-pillar and / or extends in a direction perpendicular to the Y-direction.

[0037] The assembly support 12 is made of organic sheet, at least in sections around its circumference, particularly in those areas where a fastening section 18 is arranged. Preferably, the assembly support 12 is formed entirely of organic sheet. This serves to increase its flexural rigidity.

[0038] For example, the door module, in particular its assembly carrier 12, additionally or alternatively comprises a stiffening element 20. This also serves to increase the rigidity of the door assembly. The stiffening element 20 is preferably arranged in the region of the fastening section 18. In Fig. 3, the stiffening element is schematically represented by dotted lines.

[0039] The stiffening element 20 is designed, for example, as a rib structure. Alternatively or additionally, the stiffening element 20 is or comprises Organo UD tapes and / or patches. Further alternatively or additionally, the stiffening element is a metallic insert in the unit or a metallic additional sheet. The stiffening element 20 is used, for example, as an insert during production, i.e., is overmolded, or is mounted on the unit carrier. Preferably, the stiffening element is arranged in a section of the unit carrier 12. Thus, the stiffening element 20 is arranged in the region of the unit 12; in particular, the distance between the stiffening element 20 and the section of the unit carrier 12, to which the unit is attached, is less than 20 cm, in particular less than 10 cm, preferably less than 5 cm.

[0040] Although the rigidity of the door assembly is reduced due to the reduced or missing Y-flange 4, its rigidity is increased again due to the construction of at least some sections of the assembly support from organic sheet and / or the stiffening element 20.

[0041] Furthermore, a sealing element 24, for example a rubber seal, is arranged between the fastening section 18 and the B-pillar (and / or in an analogous manner between the fastening section 18 and the A-pillar 2b and / or between the fastening section 18 and the door bottom 2d).

[0042] Preferably, the fastening section 18 extends along the entire side, so that a seal between the door module 10 and the door inner part 2 can be formed comparatively easily.

[0043] A seal between the wet and dry areas is created at the A and B pillars in the X direction, and / or at the door base in the Z direction. Furthermore, a door lock 12a is indicated in Fig. 3 as an example as an assembly 12. This is arranged above the sectional plane shown in Fig. 3 with regard to the Z direction. For a better understanding of the assembly process, this is nevertheless represented in Fig. 3. After the door module 10 has been arranged, in particular after it has been fastened, on the inside door part 2, the assembly 12a, here the door lock, for example, opposite the X direction, is adjusted from a pre-assembly position, in particular towards the B pillar 2c, into an end position. As a further example not shown, the door drive is used as the assembly, and after the door module 10 has been arranged, in particular after it has been fastened, on the inside door part 2, it is adjusted in the X direction towards the A pillar 2b into the end position. The adjustment is shown in Fig.3 is represented by an arrow.

[0044] According to an alternative not further illustrated, a Y-flange is arranged, in particular molded, on the door sill 2a. In this case, the door module is attached to the Y-flange, and the attachment to the frame sections 2b and 2c and / or the door base 2d is carried out in a manner analogous to the above. For this purpose, the unit carrier comprises a fastening section that extends in the Y-direction and / or parallel to the frame sections 2b and 2c and / or to the door base 2d.

[0045] The claimed invention is not limited to the exemplary embodiments described above. Rather, other variants of the invention can also be derived by those skilled in the art from this and / or within the scope of the disclosed claims, without departing from the subject matter of the claimed invention. In particular, all individual features described in connection with the various exemplary embodiments can also be combined in other ways within the scope of the disclosed claims, without departing from the subject matter of the claimed invention. List of reference symbols

[0046] 2 Door interior / door shell

[0047] 2a Parapet of the door interior

[0048] 2b A-pillar of the door interior

[0049] 2c B-pillar of the door interior

[0050] 2d door bottom of the door inner part

[0051] 4 Y-flange

[0052] 6 Recess / frame cutout

[0053] 8 Attachment point

[0054] 10 door module

[0055] 12 aggregate carriers

[0056] 12a aggregate

[0057] 14 Door shaft

[0058] 16 supporting section

[0059] 18 Fastening section

[0060] 20 stiffening element

[0061] 22 Fastening element

[0062] 24 Sealing element

[0063] X Vehicle longitudinal direction

[0064] Y vehicle transverse direction

[0065] Z Vehicle height direction

Claims

Claims 1 . Door assembly for a vehicle door of a motor vehicle, comprising a frame-like inner door part (2) with a frame cutout (6) and a door module (10) mounted on the inner door part (2), wherein the door module (10) has an assembly carrier (12) and at least one assembly (12a) fastened thereto, and wherein the assembly carrier (12) is fastened to an A-pillar (2b) of the inner door part (2), to a B-pillar (2c) of the inner door part (2) and / or to a door base (2d) of the inner door part (2).

2. Door assembly according to claim 1, characterized in that the unit carrier (12) comprises a, for example plate-shaped, support section (16) for fastening the unit (12a), wherein, in particular on the circumference of the support section (16), a fastening section (18) protrudes into a door shaft (14) for mounting the unit carrier (12) on the A-pillar (2b), on the B-pillar (2c) and / or on the door base (2d).

3. Door assembly according to claim 2, characterized by a sealing element (24) which is arranged between the fastening section (18) and the B-pillar (2c) and / or between the fastening section (18) and the A-pillar (2b) and / or between the fastening section (18) and the door bottom (2d).

4. Door brewing group according to one of claims 1 to 3, characterized in that an extension of a Y-flange (4) from the A-pillar (2b), from the B-pillar (2c), from the door bottom (2d), and / or from a door sill (2a) in the plane perpendicular to the Y-direction is less than 5 cm, for example less than 3 cm, in particular less than 1 cm.

5. Door module (10) for a door assembly according to one of claims 1 to 4.

6. Door module (10) according to claim 5, wherein the unit carrier (12) thereof has a fastening section (18) for mounting the unit carrier (12) on the A-pillar (2b), on the B-pillar (2c) and / or on the door base (2d), which section protrudes upwards to a support section (16), in particular a plate-shaped one, for fastening the or an unit (12a).

7. Door module (10) according to claim 5 or 6, wherein the unit carrier (12) has a stiffening element (20) for increasing the rigidity, in particular of the door assembly and / or the door module, preferably in the region of the fastening section (18).

8. Vehicle door, in particular for a motor vehicle, with a door assembly according to one of claims 1 to 4 and / or with a door module according to one of claims 5 to 7.

9. Method for assembling a door assembly, in particular designed according to one of claims 1 to 4, - wherein, in particular without tension, the door module (10) is introduced into the door shaft (14), in particular its fastening section (18) of the unit carrier (12) is inserted into the door shaft (14), and / or - wherein the unit carrier (12) is fastened to the A-pillar (2b) of the inner door part (2), to the B-pillar (2c) of the inner door part (2), and / or to the door base (2d) of the inner door part (2).

10. The method according to claim 9, wherein after arranging, in particular after fastening, the door module (10) on the door inner part (2), an assembly (12a), for example a door lock or a door drive, in particular in or against a vehicle longitudinal direction (X), is adjusted from a pre-assembly position, in particular towards the A-pillar or the B-pillar (2c), into an end position.

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