Wind deflector for a windscreen wiping device for a motor vehicle

Abstract

The invention relates to a wind deflector (22) for a windscreen wiper device of a motor vehicle, the wind deflector having a receptacle (12) for fastening the wind deflector (22) to a structural element (3) of a wiper arm (2) of the windscreen wiper device, wherein the wind deflector (22) is at least partially formed from an elastic plastic component (51).

Description

Technical Field

[0001] The invention relates to a wind deflector or a similar functional element for a windscreen wiping device of a motor vehicle. Background Art

[0002] DE 87 16 154 U1 already discloses an attachment device for a windscreen wiper (Scheibenwischer, sometimes also called windscreen wiper) which has a flow-guiding function. The attachment device is made of plastic in an extrusion process and comprises a receptacle for fixing a wiper rod of a wiper arm of a windscreen wiper device. In addition, the attachment device comprises a receptacle for a hose of the windscreen wiper device. Summary of the invention

[0003] The object of the present invention is to provide a wind deflector (sometimes called wind deflector) of the type mentioned at the outset or a similar functional element which can be fastened particularly advantageously to a corresponding wiper arm of a windscreen wiping device.

[0004] This object is achieved according to the invention by a flow guide or a similar functional element.

[0005] The deflector or similar functional element according to the invention is characterized firstly in that it comprises a receptacle for fastening to a structural element of a wiper arm of a windscreen wiping device, in particular to a wiper rod. In order to provide a deflector which, on the one hand, can be fastened particularly well to a structural element of a wiper arm, in particular to a wiper rod, and which, on the other hand, has suitable aerodynamic properties, for example, and furthermore does not cause damage or disturbing noises when in contact with the windscreen to be wiped, the deflector or similar functional element according to the invention is at least partially formed by an elastic plastic component. Such a plastic component has the advantage that, for example, a receptacle or a receiving channel for arranging the deflector on the wiper rod can be formed in the length region of the elastic plastic component, so that, for example, the wiper rod is thus enclosed in the bending region. As a result, the deflector can be pushed onto the wiper rod of the wiper arm, for example, in a simple manner, even if the wiper rod does not have a straight course. At other locations, however, the receptacle can be formed from a hard plastic component in order to achieve a particularly secure and stable arrangement of the wind deflector on the wiper rod or another structural element of the wiper arm.

[0006] Furthermore, it is advantageous to partially design the wind deflector to consist of an elastic plastic component, in order to avoid damage or disruptive knocking noises, for example, when the wind deflector strikes, for example, against a windshield. This can occur, for example, in the event of corresponding pressure surges, when the wiper blade or wiper arm is lifted from the windshield, or when driving over uneven surfaces. Vibration damping can be achieved by means of the elastic plastic component, for example, so that the wind deflector striking the windshield does not lead to the described disadvantages. On the other hand, the wind deflector can thereby also be arranged very close to the corresponding windshield, which leads to aerodynamic advantages.

[0007] In a further embodiment of the invention, it has been shown to be advantageous that the wind deflector is at least partially formed from a hard plastic component. This allows areas to be provided that are specifically formed from hard plastic components, such as a receptacle or a receptacle channel for fastening the wind deflector to the wiper arm, in order to achieve a particularly secure and rigid arrangement of the wind deflector on the wiper arm. Soft and elastic plastic components and hard plastic components are used here, for example, within the scope of a two-component injection molding method or within the scope of a similar method, in order to form the wind deflector, thereby providing a wind deflector having the above-mentioned features and advantages in a simple manner.

[0008] Furthermore, it has proven to be advantageous if the windshield cleaning device is integrated into the wind deflector, thereby making it possible to provide a wind deflector with a corresponding dual function.

[0009] A further advantageous embodiment of the invention provides that the surface of the wind deflector, at least on the visible side relative to its installed position, is formed at least substantially from an elastic plastic component. On the one hand, this provides a visually advantageous, uniform and aerodynamic surface, which on the other hand ensures, for example, gentle absorption of such impacts in the event of a corresponding impact of the wind deflector or a collision with a wind deflector or the like.

[0010] Another advantageous embodiment of the present invention provides that at least substantially all liquid-conducting components of the windshield cleaning device are formed from hard plastic parts. Thus, a windshield cleaning device can be provided which is designed to be sealed and conducts the corresponding windshield cleaning liquid to the windshield to be cleaned with high power.

[0011] In this regard, it has been shown that it is further advantageous that the windscreen cleaning device is at least substantially fully integrated into the elastic plastic component. Thus, the windscreen cleaning device is particularly suitable and hidden in the elastic plastic component.

[0012] Furthermore, it has been found to be advantageous if the receptacle for fastening the wind deflector to a structural element of a wiper arm of a windscreen wiping device is preferably formed from a hard plastic component, thereby achieving a particularly secure, stable and rigid arrangement of the wind deflector on the corresponding wiper arm.

[0013] Another advantageous embodiment of the invention provides that the receptacle is designed for fastening the wind deflector to a wiper rod of a wiper arm of a windscreen wiper device. This results in a particularly simple design of the entire windscreen wiper device.

[0014] A further advantageous embodiment of the invention provides that a fixing device is provided for securing the wind deflector on a structural element of a wiper arm of a windscreen wiping device, the structural element being formed by a hard plastic component. As a result, the wind deflector is also secured particularly conveniently and stably against movement along the wiper arm.

[0015] Finally, it has proven to be advantageous if the elastic plastic component consists of a UV-resistant material, thereby being preserved over the life cycle of the motor vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The embodiments of the present invention are described below. To this end:

[0017] Figure 1a-1c Corresponding perspective views showing the sequence of mounting a functional element on a wiper rod of a wiper arm for a windscreen wiping device for a motor vehicle according to a first embodiment, the functional element being designed as a wind deflector and comprising a windscreen cleaning device, wherein: Figure 1a The functional element is shown also separated from the wiper rod, Figure 1b The functional element is shown in a position partially plugged into the wiper rod, and Figure 1c The functional element is shown fully plugged into the wiper rod;

[0018] Figure 2a-2c A perspective view of a corresponding detail of a functional element of a first specific embodiment of a windscreen wiper device is shown, wherein: Figure 2a The functional element is shown before being plugged onto the wiper rod. Figure 2b The functional element is shown in a completely plugged-in position, but not yet locked by means of a fixing device, and Figure 2c The functional element is then shown fastened to the wiper rod by means of a fastening device;

[0019] Figure 3a , 3b A corresponding section through the functional element is shown in the position in which the functional element is arranged on the wiper rod, wherein Figure 3a A fastening device is shown for fastening the functional element to the wiper rod in the open state, and Figure 3b The fixing device is shown in a closed position, fixing the functional element on the wiper rod;

[0020] Figure 4a , 4bA corresponding perspective view of a functional element fastened to a corresponding wiper rod according to another embodiment is shown, wherein the functional element is shorter and therefore does not extend to the spring box of the wiper arm, wherein Figure 4a The functional elements are shown when the fixing device is open, and Figure 4b The functional elements are shown when the fastening device is closed;

[0021] Figure 5a , 5b The wiper arm is shown together with the Figure 4a and 4b A corresponding perspective view of the functional element mounted thereon, wherein Figure 5a shows the wiper blade before it is assembled, and Figure 5b The wiper blade is shown after being mounted with the aid of an adapter which is arranged independently of the functional element and is fixed at the free end of the wiper rod of the wiper arm.

[0022] Figure 6a , 6b A corresponding perspective view of a functional element fastened to a corresponding wiper rod according to another embodiment is shown, wherein the functional element consists of two parts which are connected to one another at a film hinge or the like and which are connected to one another by folding together or can be fastened to the wiper rod, wherein: Figure 6a The functional element is shown before being fastened to the wiper rod, and Figure 6b The functional element is shown after being fastened to the wiper rod;

[0023] Figure 7 shows a section through a functional element and a part of an associated wiper rod along a section plane, to which the functional element is fastened, the section plane extending in the dividing plane between the two parts of the functional element, wherein in particular the fastening device, by means of which the functional element is fixed to the wiper rod, can be seen; and

[0024] Figure 8a-8c Shown through the Figures 6a to 7 A corresponding cross-sectional view of a functional element of Figure 8a Similar to Figure 6a The two parts of the functional element are shown in the open state. Figure 8b The functional element with two parts is shown in a position arranged on the wiper rod but not yet closed, and Figure 8c The two parts of the functional element are shown after being fastened to the wiper rod. DETAILED DESCRIPTION

[0025] The embodiments explained below are preferred embodiments of the present invention. In the embodiments, the described parts of the embodiments present individual features of the present invention that should be considered independently of each other, and the features further expand the present invention independently of each other. Therefore, the disclosure should also include features that are different from the shown feature combinations of the embodiments. In addition, the described embodiments can also be supplemented by other features of the already described features of the present invention.

[0026] In the figures, the same reference numerals respectively denote elements with the same function.

[0027] Figure 1a , 1b 1 and 1c show in corresponding perspective views the assembly process for arranging and fixing the functional element 1, which will be explained in more detail below, on the wiper arm 2. The wiper arm 2 and the functional element 1 are shown in the following figures. Figure 1a In the figure, the components are first shown separately in an exploded manner.

[0028] It can be seen here in particular that the wiper arm 2 comprises a wiper rod 3, which is designed at an angle in the bending region 4. On the side opposite the free end 5, the wiper rod 3 is fixedly connected to a spring box 6, which is designed at least substantially rectangular in cross section in the coupling region 7 and is crimped onto the wiper rod 3, which is also at least substantially rectangular in cross section. The spring box 6 is connected in an articulated manner via a bearing opening 8 to a lever element (not shown) of the windscreen wiping device (which lever element is sometimes also referred to as a fixing part), which itself is connected to a drive shaft of an associated drive motor in a rotationally fixed manner. The wiper arm 2 can be pivoted about the axis formed by the bearing pin 8 relative to the associated lever element, counteracting the spring force of a spring element, which itself can be hooked into a spring receptacle 9 at the corresponding end of the wiper rod 3, in order to press the wiper arm 2 or an associated wiper blade against the surface of the front windscreen, for example, in the operating position.

[0029] The functional element 1 has a first sub-region 10 and a second sub-region 11 which is formed integrally with the first sub-region, in which a continuous receiving channel 12 for the wiper rod 3 is provided. The receiving channel 12 here at least substantially matches the approximately rectangular cross-section of the wiper rod 3 in terms of cross section, which has at least substantially uniform cross-section over its entire course. Therefore, the receiving channel 12 also has a substantially uniform cross-section over its entire length in the functional element 1.

[0030] As the following overview Figure 1b and 1cAs can be seen, the functional element 1 can thus be plugged or pushed onto the wiper rod 3 from the free end 5 until the end 13 of the first subregion 10 of the functional element 1 is at least substantially flush with the connection region 7 of the spring box 6. In order to enable the functional element 1 to be plugged onto the wiper rod 3 up to the spring box 6, the functional element 1 is made of an elastic material, such as a corresponding plastic, in the first subregion 10 (starting from the end 13) at least over the bending region 4. With this soft and elastic material, it is also conceivable that the connection region 7 of the spring box 6 protrudes in a sleeve-like manner from the end 13 of the subregion 10 of the functional element 1.

[0031] The end 13 of the sub-region 10 furthermore projects from a pipe piece 14, via which the functional element 1 can be supplied with a windshield cleaning liquid in a manner described in further detail below. Thus, at least one supply channel 15 for a windshield cleaning liquid is formed in the pipe piece 14, via which the functional element 1 can be supplied with a windshield cleaning liquid in a manner described in further detail below. The supply channel 15 furthermore also extends through the sub-region 10 and the sub-region 11 of the functional element 1. Thus, a windshield cleaning device 16 or part of a windshield cleaning device is formed in the functional element 1, so that in the present case the wiper arm 2 is a so-called wet wiper arm. This means that, by means of a windshield wiping device, a windshield to be cleaned, in particular a front windshield of a motor vehicle, can be charged with windshield cleaning liquid via a nozzle, which is carried by the wiper arm 2. The end of the pipe piece 14 of the functional element 1 is connected here via a channel arrangement, not shown in further detail, to a windshield cleaning device for windshield cleaning liquid together with an associated pump. Usually the channel assembly is arranged in the front space or the engine compartment of the motor vehicle. Figure 1c It can be seen that the line piece 14 in the present case extends further on the underside of the wiper rod 3 into the interior of the spring cassette 6 .

[0032] In addition, the overview Figures 1a to 1c It can be seen that the functional element 1 is moved onto the wiper rod 3 to such an extent that the wiper rod 3 is Figure 1c As can be seen in the final assembly position of the functional element 1, at the free end 5 it protrudes over a considerable length region from the receiving channel 12. This in turn means that the functional element 1 is connected with the sub-regions 10, 11 via the receiving channel 12 to a length region of the wiper rod 3 which is spaced apart from the free end 5 of the wiper rod 3.

[0033] In other words, the free end 5 projects out of the partial region 11 of the functional element 1 or out of the receiving channel 12 .

[0034] The windshield cleaning device 16 integrated into the functional element 1 currently comprises a channel system, which has corresponding channels integrated into the functional element 1 and open into different nozzles, via which the windshield to be cleaned or to be wiped or an associated wiper blade (explained in more detail below) can be loaded with windshield cleaning liquid.

[0035] Thus, the windshield cleaning device 16 firstly comprises two outer circle nozzles 17, 18, via which the wiper blade is acted upon in the vicinity of its outer circle, i.e., in the region in which the wiper blade passes through the maximum radius of its surface to be wiped. The outer circle nozzle 17 covers the region closer to the functional element 1, and the outer circle nozzle 18 covers the region closer to the outer circle of the corresponding wiper blade, which is still further away from the functional element 1.

[0036] Furthermore, the windshield cleaning device 16 comprises a plurality of, in the present case five, central nozzles 19, which all extend at least substantially in a row in the direction of extension of the functional element 1. The respective nozzles 19 are respectively attached in the manner described below to the corresponding protuberances 20 which protrude from the functional element 1 or from the wiper arm 2 in the direction of the windshield to be wiped and cleaned. Finally, the windshield cleaning device 16 comprises at least one inner circle nozzle 21, via which the wiper blade of the wiper arm 2 is supplied with cleaning liquid in the region of its inner circle in which the wiper blade passes the shortest radius of its corresponding wiping surface during the wiping process. All nozzles 17, 18, 19 and 21 can be adjusted in this case so that they apply the cleaning liquid to the windshield, in particular the front windshield, at the start of the movement, i.e. in the case of the front windshield, when the respective wiper arm 2 moves upwards, at a corresponding spacing in front of the moving wiper blade there. If possible, the wiper blade can also be directly loaded with windshield cleaning liquid.

[0037] In addition to the integration of the windshield cleaning device 16, the functional element 1 comprises the further function of air deflection. Therefore, the functional element 1 is designed in the present case as a deflector 22 and comprises a deflector contour 23 on the front side or the upper side facing away at least substantially from the nozzle 19 and the wiper rod 3, in order to thereby achieve a particularly favorable overflow of the air which usually flows from the front to the respective wiper arm 2 or the corresponding wiper blade.

[0038] The present functional element 1 is therefore designed as a wind deflector 22 and is designed for integration of a windshield cleaning device 16 . However, it is to be considered as being included within the scope of the invention that the functional element 1 can also perform only one of these two functions.

[0039] Figures 2a to 2c Shown in a corresponding partial and perspective sub-view Figures 1a to 1c Functional element 1 of the embodiment described in Figure 2a In particular, the receiving channel for the wiper rod 3 and the third subregion 24 of the functional element 1 , which is also formed in one piece with the subregions 10 and 11 , can be seen. Figure 2b and 2c Here the position of the functional element 1 is shown when the functional element is completely plugged onto the wiper rod 3. In this position, the third sub-region 24 of the functional element 1 covers the free end 5 of the wiper rod 3, in particular with respect to the installed position of the wiper arm 2 at its front side and at its underside. It can also be seen that the wiper rod 3 is arranged in a recessed manner relative to the sub-region 24.

[0040] By Overview Figure 2a and 2b Together with the basis Figure 2c It can also be seen that in the present case the functional element 1 is arranged in a locked manner on the wiper rod 3 of the wiper arm 2 by means of a fixing device 25 in the extension direction of the receiving channel 12. The locking is achieved in the present case by means of a tab 26 which is pivotably arranged on the functional element 1 via a film hinge 27. If the tab 26 is inserted into a locking receptacle 29 provided for this purpose in the region of the receiving channel 12 by means of a locking element 28, the locking element 28 also engages with a groove 30 ( Figure 1a ) engagement. This results in a certain degree of axial locking of the functional element 1 on the wiper rod 3, so that the functional element 1 is correspondingly locked in position after being pushed onto the wiper rod 3.

[0041] Fixing device 25 in Figure 3a and 3b The corresponding sectional view of the arrangement of the functional element 1 on the wiper rod 3 is again explained in terms of its mode of action. In particular, it can be seen here how the axial stop of the latching element 28 in the latching receptacle 29 on the side of the web 26 or in the groove 30 of the wiper rod 3 is achieved.

[0042] In addition, from Figure 3a and 3b It is clear from the different hatching that the functional element 1 is currently manufactured as a plastic part using a two-component method, such as a two-component injection molding method. In particular, it can be seen here that the receiving channel 12 is formed by a hard part 31 in the area of ​​the fixing device 25. Similarly, the corresponding channels for guiding the cleaning liquid in the second and third sub-areas 11, 24 of the functional element 1 are formed by the hard part 31 at least in the area of ​​the corresponding nozzles 17, 18, 19, 21. In between, parts can also be formed by a soft part 32 of plastic, which also forms the first sub-area 10 and the pipe part 14 as already explained. This can be done by Figure 3a and 3b As can be seen, the flow-guiding contour 23 of the functional element 1 is also formed by the soft component 32. The components 31, 32 are designed in particular to be UV-resistant in this case, in order to be able to maintain a correspondingly long-lasting appearance.

[0043] exist Figure 4a and 4b , an alternative embodiment of a functional element 1 is shown in a corresponding perspective view. The functional element 1 is substantially identical in design and function to that according to the first exemplary embodiment described, so that only the differences will be discussed below. Basically, the functional element 1 differs in that, in this functional element, a first subregion 10 of the functional element 1 is not provided, which extends between the second subregion 11 and the connection region 7 of the spring box 6. Instead, the functional element 1 ends with one end 33 at a distance before the bending region 4 and thus at a considerable distance before the connection region 7 of the spring box 6. The line piece 14 of the functional element 1 therefore extends over a considerable length from the wiper rod 3 downward or on the inside into the spring box 6, from which a further connection is made for supplying cleaning liquid.

[0044] Depending on how short the functional element 1 is designed, one or more corresponding inner round nozzles 21 may be omitted in some embodiments. Such a design is implemented, for example, in compact vehicles, where a relatively small windshield surface needs to be wiped or cleaned. Such a design may also be provided on the passenger side of a larger windshield. In addition, the windshield cleaning device 16 integrated into the functional element 1 has a different design from that already integrated. Figures 1a to 3b The described embodiments are at least essentially of the same design. However, depending on the length of the functional element 1 or in particular the sub-regions 11 and 24, a smaller number of intermediate nozzles 19 can be provided. In the present exemplary embodiment, the latching element 28 can also be seen, by means of which the functional element 1 can be locked after being plugged onto the wiper rod 3.

[0045] Finally Figure 5a and 5b, the installation of a wiper blade 34 at the corresponding free end 5 of the wiper rod 3, which protrudes from the receiving channel 12 of the functional element 1, is shown in a corresponding perspective view. The wiper blade 34 comprises a wiper blade element 35, to which a base body in the form of a slide 36 is fixed. The slide 36 is in turn connected in an articulated manner to an adapter 37, so that the wiper blade element 35 together with the slide 36 can be pivoted relative to the adapter 37 within certain limits. The adapter 37 comprises a receptacle 38, which is at least partially open in the present case, via which the adapter 37 or thus the entire wiper blade 34 can be plugged into the free end 5 of the wiper rod 3. For this purpose, the receptacle 38, which is designed as a plug-in receptacle, is coordinated with the cross section of the wiper rod 3 in terms of its cross section or in terms of its shape. After the adapter 37 is plugged onto the free end 5 of the wiper rod 3 with the receptacle 38 over a certain length region, a latching device 39 is engaged, which comprises corresponding latching elements both on the side of the adapter 37 and on the side of the wiper rod 3. The latching device 39 can, for example, comprise a latching pin or the like on the side of the adapter 37, which engages with a latching recess on the side of the free end 5 of the wiper rod 3. The latching device 39 can be released here by means of an actuating element 40 in the form of a button or the like, which in the present case must be pressed in the direction of the wiper blade element 39.

[0046] In its locked position, the actuating element 40 passes through a through-opening 42 in the subregion 24 of the functional element 1. Thus, in the locked position of the locking device 39, the actuating element 40 is at least substantially arranged in the through-opening 41 and can therefore be actuated from the front from the outside in order to remove the wiper blade 34 from the free end 5 of the wiper rod 3.

[0047] Since the functional element 1 is thus fixed to the wiper rod 3 in a length region of the wiper rod 3 spaced apart from the free end 5 and the adapter 37 of the wiper blade 34 is fixed to the free end 5 of the wiper rod, a completely independent arrangement and fixing of the functional element 1 and the wiper blade 34 on the wiper rod 3 is obtained. This has the advantage that the wiper blade 34 can be removed and replaced from time to time, for example, completely independently of the functional element 1, without this affecting the mode of action of the functional element 1. In particular, it should be taken into account that even if the adapter 37 is removed, but the functional element 1 remains on the wiper rod 3, both the air guide function of the functional element 1 and the windscreen cleaning function of the functional element are fully maintained. Unlike other systems, when replacing the wiper blade 34, no part of the air guide device or the windscreen cleaning device is removed and, for example, disposed of, which poses corresponding economic and durability problems. On the contrary, a system is thereby provided in which the attachment of the wiper blade 34 and the attachment of the functional element 1 and the execution of the functions realized by the functional element 1 are completely independent of one another.

[0048] Further elements can also be integrated into the functional element 1. In particular, a heating device for a windshield cleaning device can also be integrated. The advantages already described in connection with the windshield cleaning device are also obtained here.

[0049] exist Figure 6a and 6b , a further alternative embodiment of a functional element 1 is shown in a corresponding perspective view. The functional element 1 is also substantially identical in its design and function to those according to the first exemplary embodiment described, so that only the differences will be discussed below. Basically, the functional element 1 differs in that it consists of two parts 42, 43, which are connected to one another in one piece in a region 44 in the manner of a film hinge. A completely two-part variant is also conceivable here, if possible.

[0050] Overview Figures 8a to 8c (These figures show corresponding cross-sections through the functional element 1 or the wiper rod 3 ), from which it can be seen how the two parts 42 , 43 or the functional element 1 as a whole are arranged and fixed on the wiper rod 3 . Figure 6a Or 8a, the functional element 1 is pushed and / or plugged onto the wiper rod 3 when the parts 42, 43 are open, until the wiper rod 3 (such as it is especially made of Figure 8bThe two parts 42, 43 can then be pivoted relative to one another about an axis formed by a film hinge 44 or the like until, in the present case, the parts 42, 43 are connected to one another by means of a fastening device 45 on the side facing away from the film hinge 44. The fastening device 45 comprises one or more latching elements 46 on one part 43, which latching elements (such as those which are formed in particular by Figure 8c The detachable portions 42 (see FIG. 2 ) respectively engage with one or more corresponding latching receptacles 47 .

[0051] Furthermore, corresponding stop projections 48, 49 are arranged on the two parts 42, 43, which stop projections (such as those formed by Figure 7 The retaining projections 48 , 49 , which can be seen, engage with a groove 50 in the wiper rod 3 . The retaining projections 48 , 49 act in cooperation with the groove 50 as an axial stop for the fastening device 45 in order to prevent a displacement of the functional element 1 in the extension direction of the wiper rod 3 .

[0052] The separate embodiment of the functional element 1 with the parts 42 and 43 thus offers the advantage that the functional element 1 can be fastened to the wiper rod 3 in a simple manner even if the wiper rod 3 has, for example, a non-rectilinear course or has a bend region 4. The functional element 1 can extend here not only to the spring box 6 or to the connection region 7 of the spring box but also terminate at a distance from the connection region 7.

[0053] In addition, especially by Figures 8a to 8c It can be seen how in the above-described exemplary embodiment the functional element 1 is partially composed of an elastic plastic component 51 and partially of a hard plastic component 52. The receptacle or receiving channel 12 is formed in the present case at least in the subregion 11, but also in the subregion 10, for example, from the hard plastic component 52, in order thereby to achieve a particularly strong and secure arrangement of the functional element 1 on the wiper rod 3.

[0054] Furthermore, in the present case at least substantially all liquid-conducting components of the windscreen cleaning device 16, for example the supply channel 15 and the corresponding nozzles 17, 18, 19, 21, are again formed from the hard plastic component 52. The cleaning liquid-conducting components of the windscreen cleaning device 16 are thus particularly dimensionally stable and sealing.

[0055] However, the windshield cleaning device 16 (such as it is especially composed of Figures 8a to 8c ) is at least substantially completely integrated into the elastic plastic part 51 .

[0056] In particular (with respect to the installed position of the functional element 1 or the wind deflector 22), the surface 53 on its visible side is at least substantially completely formed by the elastic plastic component 51. This results in a particularly visually favorable appearance and, in addition, a functional element 1 that is particularly well protected from blows, impacts, etc. The elastic plastic component 51 is preferably formed from a UV-resistant material in order to be correspondingly durable. In addition, the elastic plastic component 51 has a bulge 54, which serves, for example, as a vibration damper in order to protect the functional element 1 or the wind deflector 22 and the surface of the windshield to be cleaned.

[0057] In the two-component injection molding method for producing functional elements or deflectors, a core (Kern, sometimes called a mold core) for constructing the supply channel 15 is first arranged in a corresponding mold, and the core is injection-molded by the hard plastic component 52. However, since the core has a relatively small cross-section of, for example, 2 to 3 mm due to the thin design of the supply channel 15 and is relatively long in contrast, there is a risk in principle that the core will drift or shift due to the injection pressure when the hard plastic component 52 is introduced into the mold. For this reason, the core is held in place in one or more central areas of the supply channel 15 by means of a slide in order to avoid the described problems. However, the supply channel 15 is first interrupted by this. When the hard plastic component 52 is then injection-molded by the soft and elastic plastic component 51, these gaps are filled by the elastic plastic component 51. This is not critical in the central area of ​​the supply channel 15. By contrast, the critical areas such as the connections, the outlet regions of the nozzles 17 , 18 , 19 and 21 , where the sharp contour is important, are formed by the hard plastic part 52 .

[0058] In general, it can be seen from this that a functional element 1 or a deflector 22 is currently provided, which, due to its design at least partially consisting of an elastic plastic component, can on the one hand be particularly suitable for fastening to a structural element of the wiper arm 2, in particular designed as a wiper rod 3, and on the other hand, for example, has suitable aerodynamic properties and furthermore does not cause damage or disturbing noise when coming into contact with the windshield to be wiped.

Claims

1. A wind deflector (22) for a windscreen wiper device of a motor vehicle, the wind deflector having a receptacle (12) for fastening the wind deflector (22) to a structural element (3) of a wiper arm (2) of the windscreen wiper device, in, The deflector (22) is at least partially made of an elastic plastic component (51), the deflector (22) is at least partially made of a hard plastic component (52), wherein a windscreen cleaning device (16) is integrated into the deflector (22), wherein The windscreen cleaning device (16) comprises at least substantially all liquid-conducting components of the hard plastic part (52), characterized in that: The surface (53) of the wind deflector (22) in its installed position, at least on its visible side, is formed at least substantially completely by the elastic plastic component (51).

2. The deflector (22) according to claim 1, characterized in that: The windscreen cleaning device is at least substantially completely integrated into the elastic plastic component (51).

3. A flow director (22) according to any one of the preceding claims, characterized in that The receiving portion (12) for fastening the deflector (22) to a structural element (3) of a wiper arm (2) of the windscreen wiping device is formed at least partially by the hard plastic component (52).

4. The deflector (22) according to claim 1 or 2, characterized in that: The receiving portion (12) is designed for fastening the wind deflector (22) to a wiper rod (3) of a wiper arm (2) of the windscreen wiping device.

5. The deflector (22) according to claim 1 or 2, characterized in that: A fastening device (45) is provided for securing the deflector (22) on a structural element (3) of a wiper arm (2) of the windscreen wiping device, the structural element being formed by the hard plastic component (52).

6. The deflector (22) according to claim 1 or 2, characterized in that: The elastic plastic component (51) is made of UV-resistant material.

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