Assembly carrier for a vehicle door

Abstract

The present invention relates to a component carrier (24) for a vehicle door having at least one fracture element (38, 38'), the fracture element being connected to the material of the component carrier (24) by at least one surrounding weakened region (42, 42') with a smaller material thickness (d1), wherein the weakened region (42, 42') serves as a predetermined fracture site and forms the boundary of a maintenance opening (40), wherein the weakened region (42, 42') is arranged continuously in a ring around the fracture element (38, 38'), and wherein the fracture element (38, 38') and the component carrier (24) are jointly manufactured in an injection mold.

Description

Technical Field

[0001] This invention relates to a component carrier for a vehicle door, having at least one fracture element connected to the component carrier material via at least one surrounding weakened region of lesser material thickness. The invention also relates to a method of manufacturing such a component carrier. Background Technology

[0002] A car door typically consists of an outer door panel that forms the outer skin of the door and an inner door panel that connects to the inner side of the vehicle. A cavity is formed between them as an assembly space, where functional components of the door, such as window regulators, door locks, and airbags, are housed.

[0003] To assemble functional components such as window regulators, drive units, side airbag modules, speakers, and control units into the door, these components can be pre-assembled onto a support plate, also known as a door module plate or component carrier. Here, the pre-assembled components can be checked for proper functioning in their pre-assembled state. Subsequently, the component carrier can be placed over the door mounting opening to cover it and, in particular, to achieve wet / dry space separation.

[0004] After the component carrier is installed in the door, it is difficult to access the various functional components arranged on the component carrier. In particular, functional components located between the inner door skin (of which the component carrier constitutes at least one component) and the outer door skin in the wet space, that is, functional components arranged on the surface of the component carrier on the wet space side, are difficult to access for assembly and maintenance purposes in motor vehicles where the inner and outer door skins are fastened (and cannot be easily loosened) together.

[0005] In order to enable assembly, repair or maintenance work to be performed on functional components on the surface of the component carrier that are inaccessible when the component carrier is installed in the vehicle door, at least one so-called maintenance opening can be provided on the component carrier, which allows assembly tools to pass through the component carrier.

[0006] The problem here is that such maintenance openings negatively impact the wet / dry space separation achieved through the component carrier. Therefore, it is necessary to moisture-proofly seal these assembly or maintenance openings using closures to ensure reliable wet / dry space separation. Here, for example, during component carrier assembly, the maintenance opening is sealed using a plug or cap made of rubber or soft plastic in an additional process step. Consequently, such closures for sealing assembly or maintenance openings increase the complexity of assembly, the number of parts, and the susceptibility to errors, which is typically manual.

[0007] This type of maintenance, which requires maintaining the opening, typically involves only a small number of vehicle doors, for example, in approximately 5% of motor vehicles. Therefore, it is preferable to omit the aforementioned closure and use it only when such maintenance service is actually required.

[0008] To close maintenance openings, fracture elements or fracture heads can be provided, for example, arranged within the maintenance opening area on the component carrier. These fracture elements are surrounded by a weakened region that serves as a predetermined fracture site. The fracture element surrounded by the weakened region can be detached from the component carrier by force, thereby releasing the maintenance opening as needed. Summary of the Invention

[0009] The objective of this invention is to describe a particularly suitable component carrier. A further objective of this invention is to describe a particularly suitable method for manufacturing such a component carrier.

[0010] According to the present invention, the task concerning the component carrier is solved using the features of the present invention, and the method is solved using the features of the present invention. The advantages and design schemes described regarding the component carrier can also be meaningfully applied to the method, and vice versa.

[0011] The component carrier of the present invention is suitable for and configured for use in vehicle doors. The component carrier is particularly configured and constructed for receiving or holding functional components of a vehicle door and / or for configuring and constructing a wet / dry space partition, and for mounting into a vehicle door. The conjunction “and / or” is understood herein and hereinafter as follows: that is, the features associated by means of this conjunction can not only be common but also alternatives to each other.

[0012] The component carrier has at least one breakout element as a breakout plug for sealing the associated orifice-shaped maintenance opening in a fluid-tight, watertight, and airtight manner. In the open state, the maintenance opening allows (assembly) tools to pass through the component carrier, that is, the tools pass at least partially from the dry space side to the wet space side of the component carrier.

[0013] The fracture element is connected to the component carrier material through at least one surrounding weakened region with a smaller material thickness, wherein the weakened region acts as a predetermined fracture site and forms the boundary of the maintenance opening.

[0014] Here, the weakened region of the fluid seal is arranged in a continuous annular shape around the fracture element. In other words, the weakened region is a completely closed annular element that surrounds the fracture element circumferentially. Here, the fracture element and the component carrier are manufactured together in an injection mold. This means that at least one fracture element and the component carrier are manufactured in a common injection mold, that is, in a common injection molding process. This achieves a particularly suitable component carrier.

[0015] By weakening the area, and if necessary, by applying force to detach, loosen, or remove the fractured component from the component carrier in the event of damage to the weakened area, a maintenance opening within the component carrier can be released. Preferably, the fractured component is detached or removed only during maintenance. Repair or maintenance work can then be performed through the released or opened maintenance opening. Subsequently, the maintenance opening is resealed using a plug or cap-like closure in an appropriate manner.

[0016] In an advantageous design, the fracture element is integrally formed, that is, molded as a single piece or monolithic component onto the component carrier. Here, the surrounding weakened region is integrally connected to the material of the component carrier. This means that the fracture element and the component carrier are, for example, made of the same material. This results in a fracture element that can be manufactured with particular simplicity.

[0017] In an alternative design, for example, weakened regions existing within the component carrier can be directly manufactured using the injection mold's own independent hot runner nozzle, where only the required injection weight is injected into the prefabricated component carrier. The injected material plasticizes at the joint with the rest of the carrier, where the weakened region is formed via a weld line. Injection is preferably performed in a time-controlled manner. In other words, additional injection points are located within the maintenance opening area, their time delays being controlled. This allows for reliable filling of the geometry of the fractured element.

[0018] In a preferred embodiment, the weakened region is created using an embossing die in an injection mold. Here, the weakened region is created, for example, according to an injection molding process. Preferably, the weakened region is created during the injection molding process, i.e., within the injection mold. Here, the embossing die is configured, for example, as an ejector of the injection mold, particularly a mechanically or hydraulically operated core-taking component. This allows for the particularly simple and inexpensive creation of the weakened region.

[0019] In one feasible construction scheme, the weakened region has a material thickness of less than or equal to 15% of the component carrier material thickness. In other words, the material thickness or size of the weakened region is reduced by at least 85% compared to the material thickness or size of the component carrier. This ensures easy removal of the fractured element.

[0020] The component carrier has a material thickness of, for example, 1.0 mm to 2.0 mm, particularly 1.4 mm to 1.8 mm. Based on the aforementioned percentages and dimensions, in appropriate design schemes, the weakened area is specified to have a material thickness of less than or equal to 0.5 mm, particularly less than or equal to 0.2 mm. This ensures particularly simple removal of the fractured element.

[0021] An additional or further aspect of the invention specifies that the fracture element has an integrally formed tool profile. This tool profile is suitably positioned approximately perpendicular to the fracture element or component carrier and adapted and arranged for tool gripping. Here, the tool profile is particularly arranged on the dry space side of the component carrier or fracture element. The tool profile has a generally rectangular geometry. In other words, the tool profile is configured as an operating surface for tool gripping. A defined operating area is achieved through the tool profile, by which the weakened area can be damaged particularly easily with the tool, thereby allowing the fracture element to be detached particularly easily from the main body of the component carrier. In particular, simple and controlled detachment can be achieved, thereby advantageously and easily avoiding damage to the component carrier or functional components mounted thereon.

[0022] In a suitable improvement, the tool profile of the fracture element has two narrow sides as a first clamping surface for a first clamping tool, and two long sides oriented perpendicularly thereto as a second clamping surface for a second clamping tool. The narrow and long sides are defined and designed for use with different clamping tools. To avoid special tools for the fracture element, the dimensions of the narrow and long sides are matched to common clamping tools. The narrow sides are preferably set and designed for gripping with pipe wrenches, and the long sides for gripping with pliers.

[0023] Therefore, the fracture of the fracture element can be achieved simply by applying pressure to the tool profile using clamps until the material in the weakened area yields, thus releasing the fracture element from the component carrier. The approximately rectangular tool profile substantially eliminates the possibility of the fracture element unintentionally falling into a wet space. Thus, the tool profile of the present invention allows, depending on the clamping tool used, the fracture element to be released from the component carrier using a simple, quantifiable force. The tool profile ensures that the clamping tool can easily grip and hold the component, thereby enabling, for example, easy removal of the fracture element from the component carrier using vertical up-and-down movement and / or horizontal left-and-right movement.

[0024] In one conceivable construction, the longer side has two reinforcing ribs perpendicular to it on the outer side. In other words, the longer side is laterally stable. This achieves a particularly stable tool profile, thus ensuring that the tool profile will not be damaged by the applied force during disengagement. This also ensures secure and more reliable retention of the tool profile when the fractured element disengages.

[0025] The method of this invention is applicable to the manufacture of the aforementioned component carrier. According to the method, the component carrier and at least one fracture element are manufactured according to a common injection molding process, or rather, manufactured during a common injection molding process. Here, to create the weakened region, it is specified that during the injection molding process, an embossing mold is extruded or pressed into the (plastic) melt, with an embossed profile, around at least one fracture element. In other words, the weakened region is achieved by pressing or extruding the melt, which has not yet been plasticized or cooled.

[0026] When manufacturing component carriers and fracture elements, molten plastic is first supplied or ejected into the weakened area, which is then embossed or thinned using an embossing die, thus reducing the material thickness. This ensures that sufficient molten plastic is supplied to the weakened area during injection molding, thereby ensuring a fluid-tight weakened area after embossing. Furthermore, the material thickness of the weakened area can be easily modified or set using the embossing die.

[0027] The embossed profile is, for example, approximately hollow cylindrical or tubular, wherein the embossed profile is implemented by gradually tapering at the free end. In other words, the cross-section of the embossed profile is approximately wedge-shaped or pointed at its free end. This ensures that a particularly thin or narrow weakening region is achieved, thereby preserving as smooth and flat a boundary as possible for the maintenance opening when the fracture element breaks.

[0028] In a feasible implementation, a fracture element with a vertically upright tool profile is manufactured, wherein an embossing die is pressed into the melt from the side of the component carrier opposite to the tool profile. Here, the tool profile is particularly arranged on the flat side of the component carrier facing the dry space in the assembled state of the component carrier. This means that the embossing die is extruded or pressed into the plastic melt approximately from the wet space side of the component carrier. Attached Figure Description

[0029] The embodiments of the present invention are further described below with reference to the accompanying drawings. In the drawings:

[0030] Figure 1 A schematic diagram of the window regulator on the car door is shown;

[0031] Figure 2 A top view of the component carrier of the window regulator is shown from the perspective facing the wet space side;

[0032] Figure 3 A top view of the component carrier within the fractured element region is shown from a perspective facing the wet space side;

[0033] Figure 4 A partial top view of the component carrier within the fractured element region is shown from a perspective facing the dry space side;

[0034] Figure 5 A partial perspective view of the component carrier is shown, which includes a rail slider and a removed broken element;

[0035] Figure 6 A three-dimensional view of the fractured element is shown from the perspective of the tool outline facing the dry space side;

[0036] Figure 7 A top view of the fractured element is shown from the perspective of the dry space side;

[0037] Figure 8 According to Figure 7 Section lines VIII-VIII show the cross-sectional view of the fractured element;

[0038] Figure 9 Showing according to Figure 8 A partial cross-section of the weakened region in local area A;

[0039] Figures 10 to 12 A schematic diagram showing the continuous fabrication of the fracture element is provided.

[0040] Figure 13 A perspective view of a second embodiment of the fracture element is shown;

[0041] Figure 14 A perspective view showing the tool outline of the fracture element in a second embodiment; and

[0042] Figure 15 According to Figure 13 The section line XV-XV shows a cross-sectional view of the fractured element.

[0043] Corresponding components and parameters are always identified in the same figures across all the figures. Detailed Implementation Plan

[0044] Figure 1 A simplified schematic diagram illustrates an electrically powered window regulator 2 as an adjustment device for the (vehicle) window glass 4 of a motor vehicle.

[0045] The window regulator 2 has an adjusting motor 6 that acts on the window glass 4 via an adjusting mechanism 8. The adjusting mechanism 8 has at least one guide rail 10 and at least one follower or rail slider 12 connected to the window glass 4. In addition to the guide rail 10, the adjusting mechanism 8 also has a cable 14.

[0046] The adjusting motor 6 of the window regulator 2 drives the cable drum 18 of the adjusting mechanism 8 via a worm gear drive or a cylindrical gear drive 16. The traction cable of the cable 14 is arranged on the drum 18 such that the winding and unwinding of the traction cable are performed when the cable drum 18 is rotated by the drive 16.

[0047] The upper cable pulley 20 and the lower cable pulley 22 are fastened to the guide rail 10, and they are arranged on opposite (guide rail) end sides. The traction cable of the cable 14 surrounds the cable pulleys 20 and 22.

[0048] When the adjustment motor 6 is operated, the window glass 4 moves in its (window's) positioning P. Here, the window glass 4 can reversibly move between a closed position S, representing the highest possible positioning P, and an open position O, representing the lowest possible positioning P. In positions S and O, the window glass 4... Figure 1The corresponding dashed line indicates this. Conversely, a solid line indicates that the car window 4 is in the middle position of being half-open.

[0049] Figure 2 The component carrier 24 of the motor vehicle door is shown, on which different functional components of the motor vehicle door are arranged or can be arranged, such as two guide rails 10 integrally formed thereon for the window glass regulator 2 and the guide slider 12 of the window glass 4 to be adjusted, which guides the movement on the guide rails.

[0050] The component carrier 24 has a plate-like body 28 defined by a surrounding edge 26 in the form of a tray. In this embodiment, six fastening points 30 for other functional components, such as adjusting the motor 6, and an opening 32 for accommodating a speaker are provided on the component carrier 24, or its body 28.

[0051] The component carrier 24 is installed in such a manner that it covers a large area within the inner door skin of the corresponding vehicle door, and is thus bonded to the inner door skin by a seal along its surrounding outer edge 26. Therefore, the component carrier 24 constitutes a component of the inner door skin, which separates the so-called dry space of the corresponding vehicle door from the so-called wet space of the vehicle door, and consequently separates the interior space of the vehicle (when the vehicle door is closed) from the so-called wet space of the vehicle door. The surface 34 of the component carrier 24, or tray 28, facing the vehicle interior space or dry space, is referred to as the surface of the vehicle interior space side or dry space side or dry space side (or dry space side). Figure 4 The outer skin of the vehicle door facing the vehicle door and the surface 36 below that facing the wet space are also referred to as the outer or wet space side of the component carrier 24.

[0052] In the illustrated embodiment, the component carrier 24 has two breakout elements 38 as breakout plugs to seal the associated perforated maintenance opening 40, in a fluid-tight manner, i.e., watertight and airtight. Figure 5 In the open state, maintenance opening 50 allows (assembly) tools to pass through component carrier 24.

[0053] The following combination Figures 3 to 9 The first embodiment of the fracture element 38 is further described.

[0054] like Figures 2 to 5As can be seen, the fracture element 38 is arranged within the area of ​​the guide rail 10. The fracture element, or each fracture element 38, is connected to the component carrier 24 through the surrounding weakened region 42. Here, the fracture element 38 is integrally formed (i.e., one piece or single piece) on the component carrier 24 or the main body 28, wherein, in particular, the continuously annular surrounding weakened region 42 is integrally connected to the material of the component carrier 24.

[0055] Here, the weakened region 42 is configured as a predetermined fracture site, forming the circumferential boundary of the maintenance opening 40 in the event of the fracture element 38 disengaging or being removed. The fluid-tight weakened region 42 is arranged continuously in a ring around the fracture element 38. In other words, the weakened region 42 is a complete closed loop that surrounds the fracture element 38 circumferentially.

[0056] By applying force to the weakened region 42, the broken element 38 can be detached, loosened, or removed from the component carrier 24, or its main body 28, if the weakened region 42 is damaged, thereby releasing the maintenance opening 40 within the component carrier 24. Preferably, the broken element 38 is only detached during maintenance. Repair or maintenance work can then be performed through the released or opened maintenance opening 40. Subsequently, the perforated maintenance opening 40 is closed again in a suitable manner using a sealing element not shown further.

[0057] The weakened region 42 has a smaller material thickness d1 compared to the surrounding material of the component carrier 24. In other words, the weakened region 42 has a material thickness d1 that is reduced relative to the material thickness d2 of the component carrier 24. Figure 9 Here, the material thickness d1 of the weakened region 42 is less than or equal to 15% of the material thickness d2 of the component carrier 24. In other words, the material thickness d1 or material size of the weakened region 42 is reduced by at least 85% relative to the material thickness d2 or material size of the component carrier 24.

[0058] Depending on the appropriate dimensions, the component carrier 24 has a material thickness d2 of, for example, 1.0 mm to 2.0 mm, particularly 1.4 mm to 1.8 mm. Here, the weakened region 42 has a material thickness d1 of less than or equal to 0.5 mm, particularly less than or equal to 0.2 mm, in an appropriate manner. The maintenance opening 40 has a diameter of, for example, approximately 23 mm.

[0059] exist Figures 6 to 9 The fracture element 38 shown individually has a generally smooth or flat surface on the wet space side. On the opposite dry space side 34, the fracture element 38 has an integrally formed tool or operating profile 44 that protrudes approximately vertically from the component carrier 24, or body 28.

[0060] The tool profile 44 is adapted and configured to allow the tool to grip. In other words, the tool profile 44 is constructed as an operating area for the tool to grip. By defining the operating area through the tool profile 44, the tool can easily damage the weakened area 42, thereby allowing the broken element 38 to be detached or removed from the body 28 of the component carrier 24 particularly easily.

[0061] Especially in Figure 7 As can be seen in the top view, the tool profile 44 has a generally rectangular cross-sectional shape or geometry. Here, the rectangular tool profile 44 has two narrow sides 46 and two long sides 48 oriented perpendicularly to it. Here, the narrow sides 46 and the long sides 48 are preferably set and designed as working surfaces for different clamping tools.

[0062] The narrow side 46 is configured as a clamping surface for a first clamping tool, and the long side 48 is configured as a clamping surface for a second clamping tool. The dimensions of the narrow side 46 and the long side 48 are particularly well-matched to common clamping tools. The narrow side 46 is preferably configured and designed for pipe wrenches to grip, and the long side 48 for pliers to grip.

[0063] The tool profile 44 ensures that the clamping tool can be easily gripped and held, so that the broken element 38 can be easily removed from the component carrier 24, for example, by means of vertical up-and-down movement and / or horizontal left-and-right movement.

[0064] exist Figures 6 to 9 In the embodiment of the fracture element 38 shown, the tool profile 44 has a transverse tab 50 extending between the long sides 48, which is arranged approximately centrally between the narrow sides 46. The transverse tab 50 serves both as a central reinforcement or stabilization of the tool profile 44 and as an additional clamping surface corresponding to the narrow sides 46. Thus, two receptacles (not further described) are provided approximately between the narrow sides 46 and the transverse tab 50, and between the long sides 48, for engagement of the clamping tool.

[0065] The long side 48 has two vertically oriented reinforcing ribs 52, which are arranged approximately parallel to the narrow side 46 and the transverse connecting piece 50, and they are formed on the outer side 48 of the long side 48. Here, the reinforcing ribs 52 have an approximately triangular cross-sectional shape in the cross-section of the plane perpendicular to the body 28.

[0066] The laterally oriented reinforcing ribs 52 provide sufficient strength to the tool profile 44, which is necessary for transmitting fracture forces within the weakened region 42.

[0067] The following combination Figure 8 and Figure 9The cross-sectional view further illustrates the weakened region 42. Here, the weakened region 42 is roughly composed of two annular notches or recesses 54 and 56 in the main body 28 or fracture element 38. The recess 54, with an approximately triangular cross-section, is located in the wet space side 36, and the recess 56, with an approximately U-shaped cross-section, is located in the dry space side 34 of the main body 28.

[0068] Especially Figure 9 As shown in the cross-sectional view, the top region, or tip, of the recess 54 is axially aligned with the corner region formed between the vertical and horizontal U-shaped legs of the recess 56. Between the tip region of the recess 54 and the corner region of the recess 56, a weakening region 42 is formed with a material thickness d1.

[0069] The following combination Figures 10 to 12 The schematic simplified view further illustrates the fabrication of the weakened region 42 between component carrier 24 and fracture element 38.

[0070] The component carrier 24 is preferably implemented as a plastic injection molded part or injection-molded part. Here, the fracture element 38 and the component carrier 24, or body 28, are jointly manufactured in an injection mold (not shown further).

[0071] To create the weakened region 42, during the injection molding process, an embossing mold 58 is inserted or pressed into the not-yet-fully-solidified (plastic) melt around at least one fracture element 38 with an embossed profile 60. In other words, the weakened region 42 is achieved by pressing or squeezing the not-yet-plasticized or-cooled melt.

[0072] Embossing mold 58 is configured, for example, as an ejector for injection molds, particularly as a mechanically or hydraulically operated core extractor. Embossing profile 60 is, for example, approximately hollow cylindrical or tubular, wherein the embossing profile tapers gradually at its free end. In other words, the cross-section of the embossing profile 60 is approximately wedge-shaped or pointed at its free end.

[0073] When manufacturing the component carrier 24 and the fracture element 38, molten plastic is first supplied or ejected into the weakened region 42, and then embossed or thinned using the embossing mold 58, that is, the material thickness is reduced. This ensures that sufficient molten plastic is supplied to the weakened region 42 during the injection molding process, thereby ensuring a fluid seal in the weakened region 42 after embossing.

[0074] Here, Figures 10 to 12 The recess 56, not shown, is formed, for example, by a cavity or mold of an injection mold. The core insert, or embossing mold 58, is pressed axially or vertically into the melt from the subsequent wet space side 36, thus forming the recess 54 by extruding the melt that has not yet fully solidified or plasticized based on the pressed embossing profile 60.

[0075] Figures 13 to 15 A second embodiment of the fracture element 38′ is shown, which is further described below.

[0076] Unlike the previous embodiments, the fracture element 38′ is not integrally connected to the component carrier 24 or the main body 28.

[0077] Here, the fracture element 38' is implemented as an injection part of the component carrier 24. This means that the main body 28 is first manufactured or injected without the fracture element 38', and then, at staggered times, the fracture element 38' is injected into the maintenance opening 40 of the main body 28. Here, the fracture element 38' is injected from a nozzle or runner nozzle on the wet space side, and thus has, for example, an axially upright injection point 62 as a gate.

[0078] The weakened region 42' present in the component carrier 24 is created through the injection mold's own independent runner nozzle. Only the injection weight required for the fracture element 38' is injected into the prefabricated component carrier 24 to create both the fracture element 38' and the weakened region 42'. The injected material plasticizes at the joint with the remaining body 28, where the weakened region 42' is formed by the weld line. Injection is preferably performed in a time-controlled manner.

[0079] Compared with the aforementioned deformation scheme, the tool profile 44' of the fracture element 38' has a simplified structure without the cross joint 50 and the reinforcing rib 52.

[0080] This invention is not limited to the foregoing embodiments. Rather, those skilled in the art can derive other variations of the invention without departing from its subject matter. In particular, all the individual features described in connection with the embodiments can be combined with each other in other ways without departing from the subject matter of the invention.

[0081] List of reference numerals

[0082] 2. Car window regulator

[0083] 4. Car window glass

[0084] 6. Adjust the motor

[0085] 8. Adjustment mechanism

[0086] 10 guide rails

[0087] 12-rail slider

[0088] 14. Cable

[0089] 16. Worm gear drive / cylindrical gear drive

[0090] 18 Cable drums

[0091] 20, 22 Cable pulleys

[0092] 24-component carrier

[0093] 26 Edges

[0094] 28 main body

[0095] 30 Fastening parts

[0096] 32 Opening

[0097] 34 Surface / Drying Space Side

[0098] 36 Surface / Wet Space Side

[0099] 38, 38′ Fractured elements

[0100] 40 Maintenance opening

[0101] 42, 42′ Weakened regions

[0102] 44, 44′ Tool outline

[0103] 46 Narrow side

[0104] 48 Long side

[0105] 50 cross-joints

[0106] 52 Reinforcing Ribs

[0107] 54, 56 concave part

[0108] 58 Embossing mold

[0109] 60 Embossed outline

[0110] 62 injection points

[0111] P Window Positioning

[0112] O Open location

[0113] S Close position

[0114] d1, d2 Material thickness

Claims

1. A component carrier (24) for a vehicle door, the component carrier having at least one fracture element (38, 38'), the fracture element being connected to the material of the component carrier (24) via at least one surrounding weakened region (42, 42') with a smaller material thickness (d1). -in, The weakened regions (42, 42') serve as predetermined fracture sites and form the boundary of the maintenance opening (40). -The weakened regions (42, 42') are arranged in a continuous ring around the fracture element (38, 38'). -The fracture elements (38, 38') and the component carrier (24) are jointly manufactured in an injection mold. The fracture elements (38, 38') have a one-piece, generally rectangular tool profile (44, 44') for tool gripping. The tool profile (44, 44′) has two narrow sides (46) as a first clamping surface for the first clamping tool, and two long sides (48) oriented perpendicularly thereto as a second clamping surface for the second clamping tool.

2. The component carrier (24) according to claim 1, Its features are, The fracture element (38) is integrally formed, wherein the surrounding weakened region (42) is integrally connected to the material of the component carrier (24).

3. The component carrier (24) according to claim 1 or 2, Its features are, The weakened area (42) is created by embossing (58) of the injection mold.

4. The component carrier (24) according to any one of claims 1 to 2, Its features are, The weakened regions (42, 42′) have a material thickness (d1) that is less than or equal to 15% of the material thickness (d2) of the component carrier (24).

5. The component carrier (24) according to any one of claims 1 to 2, Its features are, The weakened regions (42, 42′) have a material thickness (d1) of less than or equal to 0.5 mm.

6. The component carrier (24) according to claim 1, Its features are, The long side (48) of the tool profile (44) has two reinforcing ribs (52) oriented perpendicularly to it on the outer side.

7. The component carrier (24) according to any one of claims 1 to 2, Its features are, The weakened regions (42, 42′) have a material thickness (d1) of less than or equal to 0.2 mm.

8. A method for manufacturing a component carrier (24) for a car door, -in, The component carrier (24) and at least one fracture element (38) are manufactured using a common injection molding process, and -In order to create the weakened region (42), during the injection molding process, an embossing mold (58) is pressed into the melt that has not yet fully solidified around the at least one fracture element (38) with an embossed profile (60). The fracture element has a one-piece, generally rectangular tool profile designed for tool gripping. The tool profile has two narrow sides (46) as a first clamping surface for a first clamping tool, and two long sides (48) oriented perpendicularly thereto as a second clamping surface for a second clamping tool.

9. The method according to claim 8, Its features are, A fracture element (38) with a vertically upright tool profile (44) is manufactured, wherein the embossing die (58) is pressed into the melt from the side of the component carrier (24) opposite to the tool profile (44).

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