Component with flaps and damped-mounted flap axes, as well as assembly methods

Abstract

Component (1) on a vehicle with at least two pivotable air flaps (2), wherein the axes (20) of the pivotable air flap (2) terminate in fastenings which each include an elastic element for centering the axes, and wherein the air flaps (2) are rotatable along the axes (20) via a drive rod (5), and wherein the axes (20) of the pivotable air flaps (2) terminate in fastenings which include at least one elastic element for centering the axes (20), wherein the drive rod (5) has devices for drive fastenings which contain elastic elements.

Description

The invention relates to a component on a vehicle which is provided with at least one pivotable flap, the axis of the pivotable flap ending at the ends in fastenings which comprise at least one elastic element for centring the axis.The invention also relates to a method for mounting the component.Prior ArtFlaps in the vicinity of the vehicle front, especially in the radiator grille, adapt the air resistance to the respectively current driving situation: when they are closed, the resistance is lower. This reduces CO2 ausstoß, decreases fuel consumption, and the vehicles have a longer range. With the louvers open, maximum cooling through the engine compartment is enabled.During the production of the radiator grille, variations in the dimensions occur, so that stresses and tilting can occur after the assembly, especially when using large-area air flaps. The axes of rotation of injection molded parts of the grille must be simple despite the production tolerance of the axes.Known measures show adjustable bearing elements in order to minimize problems with products that do not fit with precision.For example, EP 1 645 761 B1 shows a bearing element for an axial bearing for supporting a bearing mating element in a supported manner, wherein the bearing element has a bearing section on which the bearing mating element can be supported in a supported manner with an axial force component in the direction of the bearing section, and at least one contact section laterally of the bearing section for bearing the bearing element on a side wall of the bearing for fixing and / or aligning the bearing element in the bearing, wherein adjusting and / or supporting elements project laterally from the bearing section, wherein the adjusting and / or supporting elements are spaced apart from respectively adjacent adjusting and / or supporting elements and wherein the adjusting and / or supporting elements form at least one contact section spaced apart from the bearing section in each case.DE 90 11 803 U1 discloses a flap device in a ventilation system of a vehicle. This flap device comprises an air guide channel which has bearing points for pivotably mounted flaps. The flaps comprise a flap body and integrally formed bearing pins which serve as axles. The axes of the pivoting flap end at the ends in mountings which comprise an elastic element for centring the axis. The elastic element is designed as a spring element which is formed by an elastomeric molded part.DE 10 2019 127 615 A1 discloses a radiator grille with flaps pivotably connected thereto. The flaps comprise axles for pivotal mounting. The mounting is effected on the radiator grille at correspondingly shaped, elastically flexible projections which delimit between them a latching groove in which the axes of the flaps can be latched.From document DE 24 17 561 A a hinge connection for hinges for controlling accessories installed in vehicles is known.It is an object of the invention to provide a component as a radiator grille or a component in the radiator grille with louvers which compensates for tolerances during assembly by means of flexible components.DESCRIPTION OF THE INVENTIONThe object is achieved by a component on a vehicle which is provided with at least one pivotable flap, wherein the axis of the pivotable flap opens out at the end into fastenings which comprise at least one elastic element for centring the axis, and wherein the fastenings of the axes take place at the end of axis adapter holders which receive the shaft connection pieces of the axes directly or via mounting fastenings.More precisely, the object is achieved by a component on a vehicle having at least two pivotable louvers, wherein the axes of the pivotable louver end-to-end in attachments which each comprise an elastic element for centering the axes, and wherein the louvers, which can be rotated along the axes via a drive rod, and wherein the axes of the pivotable louvers end-to-end in attachments which comprise at least one elastic element for centering the axis, wherein the drive rod has devices for drive attachments which contain elastic elements.The drive rod devices are separately built-in or injected drive mounts that include at least one component of an elastomeric material.The component made of an elastomeric material comprises an annular outer contour and / or prestressing elements.The biasing members extend radially inward toward a drive port of the shaft of the louvers of the louvers.The pretensioning elements extend in an arc-shaped manner radially inward or as a connection between the annular outer contour and the inner ring towards the drive connection of the air flaps.The fastenings of the axles to axle adapter holders take place directly or via mounting fasteners which mount the shaft connectors.The mounting fittings are connected to the axle adapter brackets by screws.The mounting attachments have a flexible mounting of the shaft connection pieces.The object is also achieved by a method for mounting a component, wherein stresses of the visible panel on the outer side of the vehicle are reduced by adjustments of the screws on the axle adapter holders.DESCRIPTION OF THE FIGURESFIG. 1 schematically shows a component with louvers as viewed from the vehicle exterior side, FIG. 2 shows a view of the component from the inside, FIG. 3 shows the individual components of the component separately from one another, FIG. 4 shows a drive rod with axle bushes, FIGS. 5a to 5c show a view of an axle bushing with different axle bearings, FIG. 6 shows a drive rod with a further embodiment of the axle bushes, FIG. 7 shows an axle adapter holder above and below the louvers, FIG. 8 shows a section through the axle adapter holder with fastening element, FIG. 9 shows a top view of the fastening element, Figure 10 shows an alternative embodiment.FIG. 1 shows a component 1 which either corresponds to an entire radiator grille or is used as an insert on a vehicle, preferably in the front region. The component 1 is shown in the closed state and has, for example, three air flaps 2.FIG. 2 shows the component 1 as viewed from the inside. The details of the construction are further described in FIG. 3.The component 1 has, for example, three air flaps 2. The louvers 2 have shafts 20 whose shafts end in shaft fittings 7a at the upper side and 7b at the lower side. In addition, on the upper side of the louvers, driving ports 8 are respectively attached. The louvers 2 are installed in a frame 3 which is covered on its surface on the outside of the vehicle by a visible panel 4. A drive rod 5 is designed as a body extending over the overall width B and shows corresponding bushings 9 for the exemplary louvers 2. For receiving the shaft connectors 7 aand 7 b, axle adapter holders 6 aand 6 bare provided, which receive the shaft connectors 7 aand 7 b.The more precise construction is described in more detail in the following figures.FIG. 4 shows an enlarged view of a drive rod 5 with three bushings 9 which are integrated on or in the drive rod. The bushes 9 serve as a receptacle for a drive fastening 11.Three different states are shown in FIG. 5. In FIG. 5 a, the drive fastening 11 has an annular outer contour 12 which can elastically adapt into the bushing 9. From the annular outer contour 12, pretensioning elements 13 extend radially inward. In FIG. 5 a, the prestressing elements 13 are unloaded and form webs of arcuate shape which extend inward. These biasing members 13 are also made of an elastic material and form the contact surface 13 ato the drive terminals 8.The drive connection 8 is not yet pressed in.In FIG. 5 b, the prestressing elements 13 are deformed in the shape of a trough by the pressing-in of the drive connection and have a larger contact surface 13 a.In the embodiment according to FIG. 5 c, it is shown that the prestressing elements 13 are loaded differently if the drive connection 8 is not seated centrally and both the trough-shaped and the arc-shaped configuration are present in a drive fastening 11.FIG. 6 shows an alternative embodiment for the drive rod 5 with a drive fastening 11. the drive fastening 11 in this embodiment again has an annular outer contour 12, from which preload elements 13 lead to an inner ring 13 b. The pretensioning elements 13 thus do not extend from the annular outer contour to the annular outer contour, but from the annular outer contour to the inner ring 13 b. The drive connection 8 is seated inside the inner ring 13 b.By using flexible materials as the prestressing elements 13 or for the annular outer contour 12 and for the inner ring 13 b, it is possible to compensate for axial deviations and to compensate for position and dimensional tolerance.In addition, axle adapter holders 6 aand 6 bare installed above and below the louvers for receiving the shaft fittings 7 a, 7 bof the louvers 2.The axle adapter holders 6 aand 6 bhave mounting bushes 10 aand 10 b. In these mounting bushes shown in FIG. 9, mounting fixtures 14 are inserted as components. The mounting fixture 14 in this embodiment comprises a square frame 17 from which elastic elements 21 extend in an arc shape towards the inner wall of the mounting bushing 10a, 10b. Screw openings 16 are provided at two diagonal corners of the frame 17. The still free diagonal of the frame 17 is bridged by a web 18 which is connected to a receptacle 19. The receptacle 19 is of annular configuration and receives the shaft connection pieces 7 a, 7 b.The axis of rotation of the plastic injection molded parts can thus be adjusted with respect to one another. The axle adapter holder 6a, 6b is connected to the mounting fixture 14 by means of threaded screws 15, see Fig. 8. The mounting fixture 14 can be initially positioned in the axle adapter holder 6a, 6b and then adjusted during mounting according to the position and shape of the visible panel 4.If the air flap 2 does not fit correctly at the end of the production line, the axis position can be corrected by manually loosening the sheet metal screws. This is done to avoid waste of material due to dimensional problems. The production tolerance of frame 3, visible panel 4 and louvers 2 is equalized.In the exemplary description, the drive mount 11 and the mounting mounts 14 have been illustrated and described as separate components.Since both the drive rod 5 and the axle adapter holders 6 a, 6 bare produced by plastic injection molding, it is possible to directly inject the flexible components of the drive fastening 11 and of the mounting fastenings 14 into the respective carrier in a two-component injection molding process.Such a solution is illustrated by way of example in FIGS. 10 and 11, in which an additional annular outer contour is dispensed with.Furthermore, it is also possible to vary the flexible properties of the drive fastening 11 and of the mounting fastenings 14. For the drive fastening 11, a solution may also be expedient in which the annular outer contour 12 is not produced from an elastic material, but rather the prestressing elements 13 alone.Reference numerals denote reference numerals1 Component 2 Air flap 3 Frame 4 Visible panel 5 Drive rod 6 a, 6 b Axle adapter holder 7 a, 7 b Shaft connection piece 8 Drive connection 9 Bushing 10 a, 10 bMount bushing 11 Drive fastening 12 Annular outer contour 13 Preload element 13 aContact surfaces 13 b Innerer ring 14 Mount fastening 15 Screw 16 Screw opening 17 Frame 18 Web 19 Receptacle 20 Axles 21 Elastic element

Claims

Component (1) on a vehicle provided with at least one pivotable flap, the axis of the pivotable flap ending at the end in mountings which comprise at least one elastic element for centring the axis (20), characterized in that the mountings of the axes are effected at the end on axis adapter holders (6a, 6b) which receive the shaft connection pieces (7a, 7b) of the axes (20) directly or via mounting mountings (14).Component (1) on a vehicle having at least two pivotable louvers (2) according to claim 1, characterised in that the axes (20) of the pivotable louver (2) end-to-end in mountings which each comprise an elastic element for centring the axes and wherein the louvers (2) are rotatable along the axes (20) via a drive rod (5), and wherein the axes (20) of the pivotable louvers (2) end-to-end in mountings which at least one elastic element for centring the axes (20) comprises, wherein the drive rod (5) has devices for drive mountings which comprise elastic elements.Component (1) according to claim 2, characterised in that the means of the driving rod (5) are separate driving mountings (11), which are received or injected in bushes (9) of the driving rod (5) and which contain at least one component made of an elastomeric material.Component (1) according to Claim 3, characterized in that the component made of an elastomeric material comprises an annular outer contour (12) and / or prestressing elements (13).Component (1) according to Claim 4, characterized in that the prestressing elements (13) extend radially inward onto a drive connection (8) of the air flaps (2).Component (1) according to Claim 4 or 5, characterized in that the prestressing elements (13) extend in an arcuate manner radially inward or as a connection between an annular outer contour (12) and an inner ring (13b) in the direction of the drive connection (8) of the air flaps (2).Component (1) according to Claim 1, characterized in that the mounting attachments (14) are connected to the axle adapter holders (6a, 6b) by means of screws (5).Component (1) according to Claim 1 or 7, characterized in that the mounting attachments (14) have a flexible receptacle for the shaft connection pieces (7a, 7b).Method for mounting a component (1) according to the preceding claims, wherein stresses of the visible panel (4) on the outside of the vehicle are reduced by adjusting the screws (15) on the axle adapter holders (6a, 6b).

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