Wiper device for a glass wiper with a spray function

Abstract

The present invention relates to a wiper device for a windshield wiper of a vehicle, comprising a wiper arm and a wiper blade device, wherein the wiper blade device comprises a scraping strip, a spoiler and a scraper blade, and wherein the wiper blade device further comprises an adapter, the adapter having a liquid inlet and two liquid outlets so as to guide cleaning liquid introduced into the liquid inlet into a liquid channel of the spoiler through the liquid outlets, and is characterized in that the wiper device further comprises a coupling element, wherein the coupling element comprises a first connector for attaching a liquid delivery device and a second connector for attaching an adapter or an intermediate piece connectable to the adapter, wherein the coupling element further comprises a first wiper arm receptacle for movably accommodating the wiper arm, wherein the adapter can be fixed to the wiper blade device, and at least one of the adapter and the connector, which can be fixed to the adapter if necessary, comprises a second wiper arm receptacle for accommodating and fixing the wiper arm.

Description

Technical Field

[0001] The present invention relates to a wiper device for a windshield wiper with a spray function, and in particular to a wiper device having a particularly advantageous connection and fixation of a wiper blade device to a wiper arm and a liquid supply device. Background Art

[0002] Window scrapers for vehicles are known in various embodiments. It is also known that window scrapers are equipped with a spraying function so that cleaning liquid can be sprayed directly through the window scraper onto the window to be cleaned of the vehicle.

[0003] In this regard, a wiper blade device for a wiper blade has been proposed, which comprises a wiper blade adapter, at least one spoiler unit and at least one spray unit having at least one washing fluid channel unit which at least partially forms a main longitudinal channel. Summary of the Invention

[0004] The present invention relates to a wiper device for a vehicle windshield wiper, comprising a wiper arm and a wiper blade device, wherein the wiper blade device comprises a wiper strip, a spoiler that can be fastened thereto, and a wiper blade that can be fastened to the wiper strip or the spoiler, and wherein the wiper blade device further comprises an adapter, wherein the adapter comprises a liquid inlet and two liquid outlets, so as to guide the cleaning liquid introduced into the liquid inlet into the liquid channel of the spoiler through the liquid outlets, wherein the wiper device further comprises a liquid inlet and a liquid outlet. 18. The liquid conveying device of claim 17, wherein the coupling element comprises a first connector for attaching the liquid conveying device and a second connector for attaching the adapter or an intermediate piece connectable to the adapter, wherein the coupling element further comprises a first wiper arm accommodating portion for movably accommodating the wiper arm, and wherein the adapter can be fixed to the wiper blade device, and at least one of the adapter and the connector that can be fixed to the adapter if necessary comprises a second wiper arm accommodating portion for accommodating and fixing the wiper arm.

[0005] Such a wiper arrangement furthermore allows particularly simple and reliable assembly and disassembly of the wiper blade arrangement.

[0006] The wiper device is particularly suitable for use as a windshield wiper for a vehicle, such as a motor vehicle. The wiper device comprises a wiper arm and a wiper blade device. The wiper arm can be used to mechanically connect the wiper blade device to the motor vehicle and, for this purpose, is particularly configured to be pivotally fastened adjacent to the vehicle's windshield. Furthermore, the wiper arm can be driven by a windshield wiper motor in a manner known per se. The wiper blade device is particularly a portion of the wiper device or windshield wiper that slides along the vehicle's windshield, guided by the wiper arm.

[0007] To this end, the wiper blade arrangement comprises a scraper strip, a spoiler that can be fastened thereto, and a scraper blade that can be fastened to the scraper strip or spoiler. The scraper strip can be made of metal, for example, and imparts mechanical stability to the scraper blade arrangement. Furthermore, the scraper strip can serve to hold the spoiler and, if necessary, the scraper blade. The spoiler is used for this purpose in a manner known per se. The glass scraper is pressed against the glass at high speed to achieve a good scraping effect. Furthermore, as described in more detail below, the spoiler can have a channel for guiding cleaning liquid. The scraper blade particularly comprises a rubber lip that slides directly along the glass and thereby removes liquid from the glass. This rubber lip can be fastened to the spoiler or alternatively to the scraper arm.

[0008] In terms of the operation of the windshield wiper or wiper device, it can be advantageous to design the wiper device so as to spray a cleaning liquid, such as water mixed with a detergent, onto the windshield. This ensures that the windshield is cleaned of dirt particularly effectively and quickly. Because the wiper device sprays the cleaning liquid onto the windshield, the cleaning liquid can be sprayed precisely and comprehensively at the desired location where the windshield wiper is cleaning the windshield. Therefore, applying the cleaning liquid to the windshield via the wiper device allows for improved safety.

[0009] To achieve this, the wiper blade device further comprises an adapter having a liquid inlet and two liquid outlets, so that liquid introduced into the liquid inlet is guided via the liquid outlets into the liquid channels of the spoiler. Therefore, a channel geometry is provided within the adapter, by which the cleaning liquid can be guided from the liquid inlet to the liquid outlets. The channel geometry can be configured, for example by adapting the dimensional ratios of the respective channels, such that the cleaning liquid is uniformly distributed over the length of the spoiler or at least a portion of the wiper blade, thereby ensuring uniform drainage and, therefore, a uniform cleaning effect, over the length of the wiper blade.

[0010] Furthermore, the liquid inlet and the liquid outlet can have corresponding connections for coupling to adjacent components.

[0011] Furthermore, it is provided that the scraper device also has a coupling element for coupling the liquid conveying device to the adapter. The coupling of the liquid conveying device to the adapter can be direct, i.e., the coupling element can be directly connected to the adapter, or an indirect coupling of the coupling element and the adapter can be achieved. The latter can be achieved, in particular, by arranging one or more corresponding intermediate pieces between the adapter and the coupling element. In principle, the intermediate piece or pieces can be designed optionally, but in particular they can be at least partially flexible, as will be described in detail below.

[0012] Accordingly, provision is made that the coupling element has a first connector for attaching the liquid conveying device to the coupling element.For example, the first connector can be a male connector, for example, when a hose is connected to a tank for cleaning liquid, this male connector can for example be connected to the hose of the liquid conveying device.

[0013] Furthermore, the coupling element comprises a second connection for attaching the adapter when the coupling element is directly connected to the adapter or for attaching an intermediate piece connectable to the adapter when the adapter is indirectly connected to the coupling element.

[0014] Furthermore, the coupling element comprises a first wiper arm receptacle for movably accommodating the wiper arm. The wiper arm receptacle is in particular an opening or a through-hole into which the wiper arm can be inserted. Preferably, the wiper arm is not fixed in the first wiper arm receptacle, but is in particular movable into the first wiper arm receptacle along the longitudinal axis of the wiper arm, i.e. approximately in the direction of insertion of the wiper arm.

[0015] Furthermore, it is provided that the adapter can be fixed to the wiper blade device, and that the adapter and / or the connector arranged on the adapter has a second wiper arm receptacle for accommodating and fixing the wiper arm. The second wiper arm receptacle can be merely a component of the adapter or the connector, or can be a part of the adapter and the connector. Accordingly, when the wiper arm is located in the wiper arm receptacle, the wiper arm can be fastened to the connector or also to the adapter, as described in more detail below.

[0016] In particular, the aforementioned embodiment allows an advantageous connection of the wiper blade device, in particular to the wiper arm and to the liquid supply device.

[0017] By the described fastening of the wiper arm in the second wiper arm receptacle and, for example, on the adapter, the coupling element can also be at least indirectly fastened to the adapter and thus to the wiper blade arrangement if the wiper arm is fastened in the second wiper arm receptacle. Thus, by the above-described means, a mechanical connection of the wiper blade arrangement to the wiper arm and, in addition, a functional connection to the liquid supply device can be achieved.

[0018] In particular, the design described here makes it possible to achieve that the mechanical and functional connection of the wiper blade device to the wiper arm, i.e., the connection of the wiper blade device to the liquid conveying device, can be carried out essentially in one working step. This is because, when the coupling element is connected to the liquid conveying device and the wiper arm is positioned in the first wiper arm receptacle, the mechanical connection can first be prepared by inserting the wiper arm into the second wiper arm receptacle, and after the coupling element is connected to the adapter, the fixing is achieved by pivoting.

[0019] A simple and, in particular, trouble-free assembly or disassembly can thus be achieved in a simple manner.

[0020] Furthermore, such a solution can be constructed in a simple manner, so that it can be produced without complex structures, which simplifies production.

[0021] Finally, a reliable mechanical and functional connection is possible, so that a high long-term stability results and the susceptibility to failure can thus be kept low.

[0022] Furthermore, it may be preferred that the second joint is connected to the intermediate piece, and the intermediate piece is connected to the adapter, wherein the intermediate piece is at least partially designed to be flexible in shape. In this design, the resulting flexibility ensures that there is no risk of damage even during intentional or unintentional relative movement of the adapter relative to the second joint. In particular, assembly and disassembly can be performed without risk of damage. This improves the long-term stability of the scraper device. Furthermore, tolerances can be accommodated with respect to the relative spatial orientation of the respective components, which also simplifies assembly and disassembly.

[0023] In terms of achieving dimensional flexibility, it can also be advantageous if the intermediate piece comprises a connector and a hose. This design allows for a particularly simple design, as the hose can generally be easily and permanently attached to the corresponding connector. Furthermore, the use of a hose allows for a leak-tight connection, thereby ensuring that no cleaning liquid is lost. Finally, by adjusting various parameters of the hose, such as its thickness and / or material, the degree of dimensional flexibility can be adjusted or adapted, which allows for a high degree of adaptability to the desired specific application. Furthermore, provision can be made for the connector to be rigid.

[0024] It is also preferred that the wiper device also has a connector that can be fixed to the adapter and has a second wiper arm receptacle for accommodating the wiper arm. In this design, it is preferred that the wiper arm can be releasably fastened to the connector. This can be achieved in particular by a releasable clamping connection. This can particularly provide advantages in assembling and / or disassembling the wiper blade device. The additional connector can particularly improve the fixing of the components to each other and, in this case, allow further components to be constructed at least partially according to the prior art, which can allow for a simple implementation.

[0025] It is particularly preferred that the intermediate piece can be fixed in a position secured to the adapter by a connector. In this embodiment, the coupling element can also be fixed by fixing the intermediate piece, but no special fixing means are required for the coupling element. This makes the coupling element particularly simple in design and also simplifies assembly and disassembly.

[0026] Specifically, it is possible to achieve a mechanical connection of the wiper blade device to the wiper arm and thus a mechanical fixation of the wiper blade device when the wiper blade device is fixed to the wiper arm, and also to achieve a connection of the liquid delivery device to the liquid discharge system of the wiper blade device, i.e., in particular the liquid nozzle. Therefore, the mechanical fixation does not have to be performed separately from the functional connection, i.e., the connection to the liquid delivery device, but rather both processes are achieved via a common working step.

[0027] This allows the particularly simple assembly and disassembly of the scraper blade arrangement, which can significantly reduce the risk of incorrect assembly. In addition, maintenance work can be carried out more effectively in time.

[0028] In particular, in this design, it is possible to simultaneously connect the liquid delivery device to the adapter while mechanically securing the wiper blade device to the wiper arm. This allows for the elimination of additional steps, or significantly simplifies the assembly and / or disassembly of the wiper blade device relative to prior art solutions. This can be achieved in particular by spatially arranging the components of the wiper device so that, when the wiper strip is introduced into the second connector, the coupling element or its corresponding connector is coupled to the adapter or its liquid inlet. This also allows the wiper blade device to be mechanically coupled or secured to the wiper arm, and the adapter to be connected to the liquid delivery device.

[0029] This can preferably be achieved by providing the connector with a receptacle for securely receiving the intermediate piece axially with respect to its axis in a form-fitting manner. This can also allow for a simple design by forming projections and grooves or undercuts, which can lead to the aforementioned advantages of a simple design or simple assembly and disassembly.

[0030] This fixation can advantageously be configured such that the connecting element has an undercut and the connector has a fixing element, wherein if the connecting element is pivoted relative to the connector by less than a predefined pivot angle, the fixing element interacts with the undercut to fix the connecting element, and wherein if the connecting element is pivoted relative to the connector by an angle equal to or greater than the predefined pivot angle, the connecting element is axially exposed or removable from the connector. In this design, assembly can thus be achieved by simply pivoting the connector relative to the intermediate piece.

[0031] Furthermore, it may be preferred that the scraper device is configured to fix at least one of the scraper arm and the intermediate piece when the scraper arm and, if necessary, the connector is pivoted relative to the adapter by less than a predefined pivot angle, and to release at least one of the scraper arm and the intermediate piece when the scraper arm is pivoted relative to the adapter by an angle equal to or greater than a predefined pivot angle. For example, the aforementioned pivotability may be used to fix or release only the scraper arm, only the intermediate piece, or both the intermediate arm and the intermediate piece.

[0032] This design allows for simple, tool-free assembly and disassembly of the wiper blade assembly and is therefore particularly simple to carry out. Furthermore, with this design, the wiper blade assembly can be very reliably fastened to the wiper arm despite tool-free fastening, thereby virtually eliminating the risk of accidental release.

[0033] Furthermore, if the coupling element is pivotably fastened to the first connector, it is also possible, for example, to pivot the coupling element relative to the first connector during normal and desired operation of the windshield wiper. This can be advantageous because, as has been shown, even small pivoting movements can occur during operation of the windshield wiper. However, since the liquid conveying device is optionally fixed rigidly or at least with limited mobility, the risk of damage due to pivoting movements that occur during operation of the windshield wiper can be counteracted in this manner.

[0034] In particular, the predefined pivot angle can be provided to lie within a range of greater than or equal to 10°, preferably greater than or equal to 18°, for example, within a range of greater than or equal to 10° to less than or equal to 45°. Consequently, the wiper arm must be pivoted relative to the second connector through a predefined pivot angle of 10° or greater, for example, 18° or greater, in order to release the wiper arm from the second connector. This design ensures that, for example, during normal operation of the windshield wiper, the wiper arm is reliably prevented from releasing when the wiper arm is pivoted. This is because even during operation of the windshield wiper, the wiper arm pivots within a limited range, but this must not lead to the wiper arm becoming loose. Accordingly, in particular, this design allows for simple assembly and disassembly to be combined with reliable fastening of the wiper blade device.

[0035] It can also be preferred that the scraper arm has a fixing side with an undercut and the adapter has a fixing protrusion, or that the scraper arm has a fixing side with a fixing protrusion and the adapter has an undercut, wherein when the scraper arm is inserted into the second scraper arm receptacle, if the scraper arm is pivoted at least a predefined pivot angle relative to the adapter, the fixing side can be guided along the fixing protrusion or the undercut, and when the fixed position of the scraper arm is reached, if the scraper arm is pivoted relative to the adapter so that it is pivoted less than the predefined pivot angle relative to the adapter, the fixing protrusion interacts with the undercut to fix the scraper arm in the second scraper arm receptacle.

[0036] In this design, can realize the fixability or the releasability of the wiper arm in the wiper arm receiving portion by designing undercut and fixed projection accordingly according to the pivot angle in a simple manner.In addition, the pivot angle when the wiper arm is released can be regulated in a simple manner equally.

[0037] Furthermore, it is preferred that the wiper arm is also fixed to the second connector by a releasable fixing portion that can be released independently of the pivoting of the wiper arm relative to the adapter. This design solution can provide additional fixing, which can further reduce the risk of unintentional release of the wiper blade device. For example, a fixing mechanism preloaded by spring force can be provided in the second connector. Thus, by pressing a button against the spring force, for example, a fixing pin can be pressed out of the fixed geometry of the wiper arm, thereby releasing this fixing.

[0038] Preferably, it can also be provided that the connecting element has an undercut and the connector has a fixing element, wherein if the connecting element is pivoted relative to the connector by less than a predefined pivot angle, the fixing element interacts with the undercut to fix the connecting element, and wherein if the connecting element is pivoted relative to the connector by an angle equal to or greater than the predefined pivot angle, the connecting element is exposed. In this embodiment, the fixability or releasability of the wiper arm in the wiper arm receptacle can be easily achieved depending on the pivot angle by correspondingly designing the undercut and the fixing projection. In addition, the pivot angle at which the wiper arm is released can also be easily adjusted.

[0039] Preferably, the spoiler can also have a plurality of liquid nozzles for spraying the cleaning liquid. This allows for a uniform application of the cleaning liquid to the vehicle's windshield, as the nozzles can be easily distributed over the spoiler. Furthermore, this allows for a simple construction or design of the wiper blade device. This is because, as mentioned above, it is particularly preferred that the spoiler carry a channel for distributing the cleaning liquid, which is connected to the adapter or its liquid outlet.

[0040] Furthermore, it may be preferred that the coupling element has a liquid inlet configured as a male connector. With this design, the liquid inlet can be constructed simply and is also compatible with commonly used liquid conveying devices. For example, the liquid conveying device can have a hose that is connected to a liquid reservoir. The hose can then be easily pushed onto the liquid inlet or the male connector to establish the connection and thus connect the adapter or wiper blade device to the liquid conveying device, such as the liquid reservoir.

[0041] Further advantages and advantageous embodiments of the subject matter of the invention are illustrated by the drawings and explained in the following description, wherein the described features may form the subject matter of the invention individually or in any combination, unless the context clearly indicates otherwise. It should be noted that the drawings have a merely descriptive character and are not to be construed as limiting the invention in any way. They show:

[0042] Figure 1 A schematic diagram showing a scraper device according to a design solution of the present invention;

[0043] Figure 2 Show Figure 1 An exploded view of the design scheme;

[0044] Figure 3 Show Figure 1 A detailed drawing of each part of the design;

[0045] Figure 4 Show Figure 1 Another detailed drawing of each part of the design;

[0046] Figure 5 Show Figure 1 Another detailed drawing of each part of the design;

[0047] Figure 6 Show Figure 1 Another detailed drawing of each part of the design;

[0048] Figure 7 Show Figure 1 Another detailed drawing of each part of the design;

[0049] Figure 8 Show Figure 1 Another detailed drawing of each part of the design;

[0050] Figure 9 Show Figure 1 Another detailed drawing of each part of the design;

[0051] Figure 10 Show Figure 1 Another detailed drawing of each part of the design;

[0052] Figure 11 Show Figure 1 Another detailed drawing of each part of the design;

[0053] Figure 12 Show Figure 1 Another detailed drawing of each part of the design;

[0054] Figure 13 Show Figure 1 Another detailed drawing of each part of the design;

[0055] Figure 14 Show Figure 1 Another detailed drawing of each part of the design;

[0056] Figure 15 Show Figure 1 Another detailed drawing of each part of the design;

[0057] Figure 16 Show Figure 1 Another detailed drawing of each part of the design;

[0058] Figure 17 Show Figure 1 Another detailed drawing of each part of the design;

[0059] Figure 18 Show Figure 1Another detailed drawing of each part of the design;

[0060] Figure 19 Show Figure 1 Another detailed drawing of each part of the design;

[0061] Figure 20 Show Figure 1 Another detailed drawing of each part of the design;

[0062] Figure 21 Show Figure 1 Another detailed drawing of each part of the design;

[0063] Figure 22 Show Figure 1 Another detailed drawing of each part of the design; and

[0064] Figure 23 Show Figure 1 Another detailed view of the various parts of the design. DETAILED DESCRIPTION

[0065] In the attached Figure 1 and 2 A design of a wiper device 10 according to the present invention is shown in FIG. The wiper device 10 is particularly used as a windshield wiper for a vehicle. Figure 1 The wiper device 10 is shown in an operating state or in an assembled state, and Figure 2 Individual parts or an exploded view of the wiper device 10 are shown.

[0066] exist Figure 1 and 2 , the wiper device 10 comprises a wiper arm 12 and a wiper blade device 14. The wiper blade device 14 also includes a wiper strip 16, a spoiler 18 that can be fastened thereto, and a wiper blade 20 that can be fastened to the wiper strip 16 or the spoiler 18. Furthermore, the wiper blade device 14 includes an adapter 22 having a liquid inlet 24 and two liquid outlets 26, 28, so that cleaning liquid 34 introduced into the liquid inlet 24 can be guided via the liquid outlets 26, 28 into the liquid channel 30 of the spoiler 18. For this purpose, the adapter 22 also includes a body 36, in which a distribution geometry 23 is provided that connects the liquid inlet 24 to the liquid outlets 26, 28. As a result, the cleaning liquid provided by the liquid supply device 32 can be distributed via the spoiler 18 and thus sprayed onto the windshield.

[0067] This is still Figure 5 Shown in more detail in .

[0068] Furthermore, it is shown that the scraper device 10 also has a coupling element 34 for coupling the liquid conveying device 32 to the adapter 22. The coupling element 34 has a first connection 38 for attaching the liquid conveying device 32 and a second connection 40 for attaching the adapter 22 or an intermediate piece 42 connectable thereto.

[0069] The latter also Figure 3 . It is also shown that the coupling element 34 also has a first wiper arm receptacle 46 for receiving the wiper arm 12, in particular in an axially movable manner. It can also be seen that the liquid conveying device 32, which is designed as a hose, for example, can be pushed onto the first connector 38, wherein the seal between the coupling element 34 and the liquid conveying device 32 can be achieved by a seal 48, such as, for example, an O-ring.

[0070] also, Figure 4 It is shown that the adapter 22 can be pushed onto the scraper strip 16. In addition, the adapter 22 can be clamped or welded to the scraper strip. The two-part spoiler 18 can also be pushed or clamped onto the scraper strip on both sides of the adapter 22 and contact the adapter 22, as shown by the arrows.

[0071] This is Figure 6 As shown in detail in Figure 6 1 shows a side view of a spoiler 18 with a fluid channel 30 arranged therein, which can be connected to the liquid nozzle of the spoiler 18 and to the liquid outlet 26 of the adapter. In addition, a fastening geometry 19 is shown, in which the wiper blade 20 can be fastened.

[0072] exist Figure 7 and 8 Also shown is the middleware 42, which is Figure 7 Shown in exploded view and Figure 8 2. It is shown fastened to the adapter 22. It can be seen that the intermediate piece 42 is partially flexibly formed, which can be connected to the second connection 40 of the coupling element 34. For this purpose, it is provided that the intermediate piece 42 includes a connecting piece 50 and a hose 52.

[0073] Due to this design and in particular due to the shape flexibility, a preferred functionality can be achieved, in particular during assembly or disassembly. Figures 9 to 11 It can be seen that when the intermediate piece 42 is fixed to the adapter 22 and further fixed to the connector 44 as described below, the connector 44 can pivot relative to the adapter 22 due to its flexible shape. Figure 9 A design is shown in which the connector 44 is arranged on the adapter 22 in a non-pivotable manner. Figure 10The flexibility of the shape shown in FIG makes it possible that, in the pivoted position of the connector 44 on the adapter 22 , the intermediate piece 42 is also still fixed to the adapter 22 and the connector 44 .

[0074] The intermediate piece 42 is fixed to the connector 44 accordingly. Figures 12 to 14 Shown in.

[0075] In particular, Figure 12 The diagram shows that the intermediate piece 42 can be fixed at a position fastened to the adapter 22 via a connector 44. This is achieved, in particular, by directly fixing the intermediate piece 42 to the connector 44. For this purpose, the connector 44 includes a receptacle 54 for securely receiving the intermediate piece 42 axially with respect to the axis, in particular the longitudinal axis, of the intermediate piece 42 in a form-fitting manner. Specifically, the connector 44 includes a projection 56 that can engage in a groove 58 of the intermediate piece 42, more specifically, of the connecting piece 50. The reverse arrangement is also possible. As a result, the intermediate piece 42 is fixed axially with a form-fitting manner, thereby also preventing the connecting piece 42 from being released from the adapter 22.

[0076] To be precise, Figure 12 is a view showing that the intermediate member 42 is not fixed to the connector 44, and Figure 13 and Figure 14 4 is a view showing that the intermediate member 42 is fixed to the connector 44 .

[0077] exist Figures 15 to 19 , it is also shown how the wiper arm 12 together with the coupling element 34 and thus together with the liquid feed device 32 is fastened to the wiper blade device or to the adapter 22 and the connector 44 .

[0078] Figure 15 Here, it is shown that the liquid conveying device 32 is fixed to the coupling element 34 in that the hose of the liquid conveying device 32 is pushed onto the first connection 38 of the coupling element 34. In addition, the wiper arm is arranged in the first wiper arm receptacle 46. For example, in this state, the wiper arm 12 can be pushed into the second wiper arm receptacle 60 and fixed there, for example, to the adapter 22. This will be done by Figures 15 to 16 Indicated by the arrows in .

[0079] It is shown here that when the wiper arm 12 is inserted into the second wiper arm receptacle 60, the second connection 40 of the coupling element 34 can also be connected to the intermediate part 42 fixed to the adapter, in particular the connecting part 52. In this case, the connecting part 50 can carry a sealing element 62, such as, for example, an O-ring, in order to allow sealing relative to the coupling element 34.

[0080] Figure 18The diagram shows a view in which the wiper arm 12 is arranged in the second wiper arm receptacle 60. By further insertion into the second wiper arm receptacle 60 or by moving the coupling element 34 on the wiper arm, the coupling element 34 and thus the liquid conveying device can now be connected to the intermediate piece 42 or the adapter 22. This state is Figure 19 Shown in.

[0081] also, Figure 19 It is also shown that the wiper arm 12 is fastened to the connector 44 by means of a releasable fastening which can be released independently of a pivoting of the wiper arm relative to the adapter 22. In this regard, the wiper arm 12 can be fixed by means of a latching connection by being inserted into the connector 44, wherein the latching connection can be released by pressing a button 64 on the connector 44, for example by moving a latching element against a spring preload.

[0082] exist Figure 20 1 and 2. Also shown is a projection 66 of the adapter 22, on which the connector 44 is pivotably mounted. For example, the projection 66 or another projection can be used to allow the wiper arm 12 to be fixed on the adapter 22 in a position arranged in the second wiper arm receptacle 60, wherein the fixation can be established or released by pivoting the connector 44 together with the wiper arm.

[0083] For this purpose, the wiper arm can have a fixing structure 68 with an undercut 70 which interacts with the projection 66, as for example in Figure 3 or Figure 15 and Figure 16 As shown in .

[0084] In other words, it is possible that the wiper arm 12 has a fixing side with an undercut 70 and the second wiper arm receptacle 60 or the adapter 22 has a fixing projection 66, or conversely, that the wiper arm 12 has a fixing side with a fixing projection 66 and the second wiper arm receptacle 60 or the adapter 22 has an undercut 70, wherein, when the wiper arm 12 is inserted into the second wiper arm receptacle 60, if the wiper arm 12 is pivoted at least by a predefined pivot angle relative to the adapter 22, the first fixing side can be guided along the fixing projection 66 or the undercut 70, and when the fixed position of the wiper arm 12 is reached, if the wiper arm is pivoted relative to the adapter 22 such that it is pivoted by less than a predefined pivot angle relative to the adapter 22, the fixing projection 66 interacts with the undercut 70 to fix the wiper arm 12 in the second wiper arm receptacle 60.

[0085] exist Figures 21 to 22The connection of the intermediate part 42 or its connecting part 50 to the coupling element 34 is also shown. The sealing element 62 is shown again here, which is Figure 21 Can be located on the connecting piece, so that when the connecting piece 50 is pushed into the second connection 40, a seal is achieved relative to the coupling element 34. In addition, this will Figure 22 and 23 Visualization.

[0086] Furthermore, it can be clearly seen that, as can be the case in principle for the coupling element 34, the coupling element 34 has a first region 33 and a second region 35, in which the first wiper arm receptacle 46 is arranged, and a liquid channel 37 is provided in the second region, which extends from the first connection 38 to the second connection 40. The liquid channel 37 can have an axis that is arranged parallel to the axis of the first wiper arm receptacle 46. The first axis represents the flow direction of the cleaning liquid from the first connection 38 to the second connection 40, and the second axis corresponds to the direction of movement of the wiper arm 12 in the first wiper arm receptacle 46.

Claims

1. A wiper device (10) for a glass wiper of a vehicle, comprising a wiper arm (12) and a wiper blade device (14), wherein the wiper blade device (14) comprises a wiper strip (16), a spoiler (18) which can be fastened thereto, and a wiper blade (20) which can be fastened to the wiper strip (16) or the spoiler (18), and wherein: The scraper device (14) further comprises an adapter (22) having a liquid inlet (24) and two liquid outlets (26, 28) so as to guide the cleaning liquid (34) introduced into the liquid inlet (24) into the liquid channel (30) of the spoiler (18) through the liquid outlets (26, 28), and is characterized in that the scraper device (10) further comprises a coupling element (34) for coupling a liquid delivery device (32) to the adapter (22), wherein the coupling element (34) has a first connector (34) for attaching the liquid delivery device (32). 8) and a second connection (40) for attaching the adapter (22) or an intermediate piece (42) that can be connected to the adapter (22), wherein the coupling element (34) also has a first wiper arm accommodating portion (46) for movably accommodating the wiper arm (12), and wherein the adapter (22) can be fixed to the wiper blade device (14), and at least one of the adapter (22) and the connector (44) that can be fixed to the adapter (22) if necessary has a second wiper arm accommodating portion (56) for accommodating and fixing the wiper arm (12).

2. The scraper device (10) according to claim 1, characterized in that The second connection (40) is connected to the intermediate piece (42), and the intermediate piece (42) is connected to the adapter (22), wherein the intermediate piece (42) is at least partially designed to be flexible in shape.

3. The scraper device (10) according to claim 2, characterized in that The intermediate piece (42) includes a connecting piece (50) and a hose (52).

4. The scraper device (10) according to any one of claims 1 to 3, characterized in that The wiper device (10) further comprises a connector (44) which can be fastened to the adapter (22) and has a second wiper arm receptacle (60) for accommodating the wiper arm (12).

5. The scraper device (10) according to any one of claims 1 to 4, characterized in that The intermediate piece (42) can be fixed in a position fastened to the adapter (22) by means of a connector (44).

6. The scraper device (10) according to claim 5, characterized in that The connector (44) has a receiving portion (54) for receiving the intermediate piece (42) in a fixed manner in an axial direction with respect to the axis of the intermediate piece (42) in a form-fitting manner.

7. The scraper device (10) according to any one of claims 1 to 6, characterized in that The scraper device (10) is configured to fix at least one of the scraper arm (12) and the intermediate member (42) when the scraper arm (12) and, if necessary, the connector (44) are pivoted relative to the adapter (22) by less than a predefined pivot angle, and to release at least one of the scraper arm (12) and the intermediate member (42) when the scraper arm (12) is pivoted relative to the adapter (22) by an angle equal to or greater than a predefined pivot angle.

8. The scraper device (10) according to any one of claims 1 to 7, characterized in that The wiper arm (12) has a fixing side with an undercut (70) and the adapter (22) has a fixing projection (66), or the wiper arm (12) has a fixing side (64) with a fixing projection (66) and the adapter (22) has an undercut (70), wherein, when the wiper arm (12) is inserted into the second wiper arm receptacle (60), if the wiper arm (12) is pivoted relative to the adapter (22) by at least a predefined pivot angle, then The fixing side (64) can be guided along the fixing projection (66) or the undercut (70), and when the fixed position of the wiper arm (12) is reached, if the wiper arm is pivoted relative to the adapter (22) such that it is pivoted relative to the adapter (22) by less than the predefined pivot angle, the fixing projection (66) interacts with the undercut (70) to fix the wiper arm (12) in the second wiper arm receptacle (60).

9. The scraper device (10) according to any one of claims 1 to 8, characterized in that The wiper arm (12) is also fixed to the connector (44) by means of a releasable fixing portion, which can be released independently of a pivoting of the wiper arm (12) relative to the adapter (22).

10. The scraper device (10) according to any one of claims 1 to 9, characterized in that The spoiler (18) has a plurality of liquid nozzles (38) for spraying a cleaning liquid (34).

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