Wiping device and in particular method of mounting this device

Abstract

TITLE: Wiper device and in particular method for mounting this device Windscreen wiper device comprising at least one deflector unit and at least one channel unit integrated in at least one deflector unit and at least one wiper blade adapter (20a) which comprises at least one adapter cap (24a) and at least one adapter base body (22a) and which is designed for coupling with at least one wiper arm, wiper device characterized by - a liquid supply unit (38a) designed for supplying the channel unit with windscreen washer fluid and which comprises at least one coupling end piece (40a) for clip-on connection with at least one adapter cap (24a). Figure 2

Description

Title of the invention: Wiping device and in particular method of mounting this device FIELD OF THE INVENTION

[0001] The present invention relates to a wiping device and to a windshield wiper blade equipped with such a wiping device as well as a method of mounting this wiping device. STATE OF THE ART

[0002] A wiping device comprising a deflector unit and a channel unit integrated in this deflector unit as well as a wiper blade adapter with an adapter cap and an adapter base body for coupling to a wiper arm is already known.

[0003] DISCLOSURE AND ADVANTAGES OF THE INVENTION

[0004] The present invention relates to a wiping device comprising at least one deflector unit and at least one channel unit integrated in at least one deflector unit and at least one wiper blade adapter which comprises at least one adapter cap and at least one adapter base body and which is designed for coupling with at least one wiper arm, said wiping device being characterized by a liquid supply unit designed for supplying the channel unit with windshield washer fluid and which comprises at least one coupling end piece for clip-on connection with at least one adapter cap.

[0005] The term "wiping device" preferably refers to at least a part, preferably a subassembly of a windshield wiper. The wiping device may also refer to the entire windshield wiper, in particular with a wiper blade. Preferably, the wiping device is intended to be applied to a vehicle. The wiping device is in particular a part of the windshield wiper used to clean a surface, preferably the surface of a vehicle window. The wiping device intended to clean a vehicle window is coupled to the vehicle, in particular by a wiper arm. The fact that an object is intended to perform a certain function preferably means that the object fulfills or performs this function in at least one application or operating state.The term "operating state" preferably means a state in which the wiping device is ready to operate for a wiping phase or wiping operation by being coupled to a wiper arm or a wiper blade or by being in a wiping mode in which the wiper blade unit of the device. wiping, in particular the windshield wiper, passes over a vehicle window and is advantageously applied against this window.

[0006] It should be noted that, in the present description, the expression "or" is to be taken in the broad sense including the conjunction or with the function or exclusive and the function or inclusive.

[0007] Preferably, the deflector unit comprises at least two deflector elements. These two deflector elements are of the same shape. Each of the deflector elements delimits at least one liquid channel of the channel unit which are or are substantially parallel to the longitudinal axis of the deflector element therethrough. Alternatively, the channel unit may also be outside the deflector unit, in particular may be connected to the deflector unit, for example, by claw or gripper elements or similar means. The term "longitudinal axis" of an object denotes in particular an axis parallel to the longest edge of the smallest geometric parallelepiped which closely surrounds the object and preferably passes through the geometric center of the object, in particular of the parallelepiped.The expression "practically parallel" designates in particular the orientation of a direction relative to a reference direction, in particular in a plane and this direction deviates from the reference direction by a difference, in particular less than 8°, advantageously less than 5° and in a particularly advantageous manner, less than 2°.

[0008] Preferably, the two deflector elements are designed to be connected, in particular by a plug-in connection, to the wiper blade adapter.

[0009] The wiper blade adapter, in particular the adapter cap, comprises two liquid connection extensions for providing a fluid connection with each deflector element. The wiper blade adapter is connected by the liquid connection extensions to the liquid channels of the deflector elements. Preferably, each liquid channel in the deflector elements comprises at least one liquid distribution element for distributing washing liquid onto the surface. Preferably, the two liquid connection extensions are identical, in particular of the same length, this length being measured along the respective longitudinal axis. Preferably, the two liquid connection extensions are aligned with each other. The two liquid connection extensions are provided at opposite ends along the longitudinal axis of the wiper blade adapter.Preferably, at least the two liquid connection extensions are oriented in respective insertion directions which are at least substantially parallel to the longitudinal axis of the wiper blade adapter.

[0010] Preferably, the adapter cap comprises at least one coupling extension provided to make a connection with the coupling end piece, in particular for insertion into the coupling connection end piece. Preferably, the coupling extension is at least twice the length and preferably at least three times the length of the connection connection extensions, in particular when this dimension is measured as the length along the respective longitudinal axis. The insertion direction defined by the coupling extension is at least substantially parallel to the longitudinal axis of the wiper blade adapter, in particular to the adapter cap or the adapter base body. Preferably, the insertion direction defined by the coupling extension is at least substantially parallel to the longitudinal axis of the fluid connection extensions. Preferably, the coupling extension is offset relative to the fluid connection extension in a direction perpendicular to the longitudinal axis of the wiper blade adapter.At least one adapter cap is made in one piece with the adapter base body.

[0011] The liquid supply unit comprises at least one pipe element for transferring the windshield washer fluid. The wiping device may comprise a windshield wiper arm which is in particular composed of at least one windshield wiper rod and at least one windshield wiper arm adapter.

[0012] The wiper rod is a rigid metal rod which is in particular curved. If the wiper rod has at least one essentially circular drive passage hole, provided for coupling to a wiper drive. The wiper arm in particular the wiper arm adapter has a transverse axis which is at least substantially perpendicular to the axis of rotation of the wiper arm, defined by the drive passage hole.

[0013] The expression "essentially perpendicular" designates in particular an orientation of a direction relative to a reference direction, the direction and the reference direction considered in a projection plane make an angle of 90° between them and the angle has only a maximum deviation, in particular less than 8°, advantageously less than 5° and in a particularly advantageous manner, less than 2°. The wiper arm adapter preferably forms part in particular of the end piece, preferably of a key-shaped end piece for the wiper rod, in particular the wiper arm adapter is made in one piece with the wiper rod.The expression "in one piece" means that it is the shape of a part, this part being produced, preferably, from a single blank, from a mass and / or by casting and, particularly preferably, by an injection process, in particular an injection casting process with one or more components.

[0014] Preferably, the pipe element, in particular the liquid supply unit, extends along the longitudinal axis of the wiper arm over at least 80% of the wiper arm extension, preferably over the entire wiper rod extension at least up to the wiper blade adapter. Preferably, the coupling end piece has a pipe-shaped extension for connection to the pipe element. The coupling end piece has a coupling opening for receiving at least one coupling cap for fluid connection to the wiper blade adapter. The snap-in connection between the coupling end piece and the wiper blade adapter is preferably formed inside the coupling end piece. Preferably, the coupling extension comprises at least one clipping element such as, for example, a clipping hook, a clipping beak, a clipping ball, a clipping clip and / or a clipping cylinder which preferably forms a tip of the coupling extension.

[0015] Alternatively, the coupling end piece is at least one clipping element such as, for example, a clipping hook, a clipping beak, a clipping ball or a clip or a clipping cylinder for creating the clipping connection between the head end piece and the wiper blade adapter. Alternatively, the coupling end piece has at least one clipping recess, in particular a clipping eyelet for forming the clipping connection between the coupling end piece and the wiper blade adapter. The coupling end piece preferably has at least one clipping recess provided, preferably, at the end of the coupling opening facing the pipe extension. Alternatively, the clip-on recess is provided in the middle region of the coupling hole, in particular with respect to the extension of the coupling hole along the longitudinal axis of the coupling end piece.Preferably, the pipe element is connected to the wiper arm, in particular to the wiper rod or to the wiper arm adapter. The coupling end piece can also be connected exclusively by the pipe element, in particular exclusively, indirectly to the wiper arm.

[0016] The embodiment of the wiping device according to the invention makes it possible to have an advantageously guaranteed fluid connection with the wiper blade adapter. There is also the advantage of a simple, uncomplicated mechanical and fluid connection to achieve a sufficient mechanical and fluid connection of the wiper blade, in particular a rapid connection of the wiper arm and the wiper blade.

[0017] According to another characteristic, the adapter cap comprises at least one seal for creating a fluid-tight connection with the coupling end piece. This seal externally surrounds the coupling extension, in particular in a recess or a groove receiving a seal. An economical fluid seal is advantageously created between the wiper blade adapter and the coupling end piece.

[0018] According to another characteristic, the coupling end piece is in the form of a female connector for receiving at least partially an adapter cap. The coupling end piece is made to receive at least a large part of the coupling extension. Preferably, the coupling end piece is designed to receive at least 60%, preferably at least 75% and particularly preferably at least 80% of the extension of the coupling extension, in particular measured along the longitudinal axis of the coupling extension. There is the advantage of a reproducible meeting between the coupling end piece and the adapter extension in particular with this coupling extension.

[0019] According to another feature, the coupling end piece comprises at least one pipe coupling element and at least one adapter coupling element which are connected. The pipe coupling element and the adapter coupling element can be produced as a single piece. The pipe coupling element and the adapter coupling element can be produced as a single piece. The pipe coupling element is provided for direct connection to the pipe element. The adapter coupling element is produced for direct connection to the wiper blade adapter, in particular to the adapter cap. The adapter coupling element delimits the coupling opening at least in large part. This results in an advantageously economical coupling end piece.

[0020] According to another feature, the pipe coupling element and the adapter coupling element are connected by a clip-on connection. The pipe coupling element and the adapter coupling element may consist of two separate parts which are permanently connected by the clip-on connection. The pipe coupling element and the adapter coupling element are connected in a sealed manner by a seal. The advantage is that the internal volume of the coupling end piece can be reached before the coupling end piece is assembled.

[0021] According to another feature, the coupling end piece is a female connector having a coupling orifice at least substantially in the form of a closed cylinder. Preferably, the outer contour opposite the pipe element of the coupling orifice is at least substantially in the form of a closed cylinder. The coupling extension comprises at least one lock-shaped element. It makes it possible to achieve an advantageously unique connection position between the adapter cap and the coupling end piece. This prevents incorrect assemblies, particularly due to pivoting overshoot.

[0022] According to another characteristic, the coupling end piece comprises at least one valve element in the form of a non-return valve or a non-return valve. This valve element is integrated into the coupling end piece, in particular it is in the coupling nozzle. This valve element can be mounted in at least one hose coupling element or in at least one adapter coupling element. Alternatively, this valve element is installed in at least one adapter cap. This achieves advantageously rapid liquid distribution. This in particular reduces the annoying backflow of windshield washer fluid.

[0023] According to another characteristic, the valve element is in the form of a duckbill valve. This valve element is made of elastomer. This provides a valve element which is advantageously economical and lightweight.

[0024] According to another feature, a windscreen wiper is provided equipped with a wiping device according to the invention. The windscreen wiper comprises the assembly of the wiper blade and the wiper arm. In particular, the windscreen wiper comprises a wiper drive. The wiper blade comprises at least two elastic rails. The wiper blade comprises at least one wiping blade with a wiping lip. The wiper blade advantageously has two end caps. This has the advantage of compatibility of the various components of the wiper.

[0025] The invention also relates to a method for mounting a wiping device according to the invention. This method allows rapid mechanical mounting and a fluid connection between the wiper blade and the wiper arm. Brief description of the drawings

[0026] The present invention will be described below in more detail with the aid of examples of windscreen wipers according to the invention equipped with a windscreen wiper device shown in the attached drawings in which:

[0027] [Fig.l] schematic view of a windscreen wiper according to the invention equipped with a wiping device according to the invention,

[0028] [Fig.2] schematic view of the wiping device according to the invention,

[0029] [Fig.3] schematic view of the wiping device according to the invention,

[0030] [Fig.4] schematic view of the wiping method according to the invention,

[0031] [Fig.5] schematic view of a variant of the wiping device according to the invention,

[0032] [Fig.6] schematic view of another variant of wiping device according to the invention,

[0033] [Fig.7] schematic view of another variant of the wiping device according to the invention.

[0034] DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0035] [Fig.l] shows a windshield wiper 100a. The windshield wiper 100a includes the wiper blade assembly 102a and the wiper arm assembly 110a. The windshield wiper 100a may include a wiper drive. The wiper blade 102a comprises two elastic rails. The wiper blade 102a comprises a wiper blade unit 104a with a wiper lip 106a. The wiper blade 102a comprises end caps 108a, 108'a.

[0036] The wiper 100a comprises a wiping device 10a. The wiping device 10a comprises a wiper blade adapter 20a. The wiping device 10a comprises a deflector unit 12a.

[0037] The deflector unit 12a comprises two deflector elements 14a, 14'a. The two deflector elements 14a, 14'a are of the same shape. The wiping device 10a comprises a channel unit 18a partially integrated in the deflector unit 12a. Each of the deflector elements 14a, 14'a delimits a liquid channel of the channel unit 18a; the channel is parallel to the longitudinal axis 16a, 16'a of the deflector element 14a, 14'a passing through the deflector element 14a, 14'a. The two deflector elements 14a, 14'a are designed to be connected in particular by a plug-in connection to the wiper blade adapter 20a. Each liquid channel of the deflector elements 14a, 14'a has a plurality of liquid distribution elements for distributing washer fluid onto the surface to be cleaned.

[0038] The wiper blade adapter 20a comprises an adapter base body 22a. The wiper blade adapter 20a comprises an adapter cap 24a. The wiper blade adapter 20a comprises a retaining spring 26a. The retaining spring 26a is pivotally connected to the adapter base body 22a, in particular around the wiper blade pivot axis 68a. The wiper blade adapter 20a is designed for coupling to the wiper arm 110a, in particular to a wiper arm adapter.

[0039] The adapter cap 24a comprises two liquid connection extensions 28a, 28'a for providing a fluid connection with a deflector element 14a, 14'a respectively.

[0040] The wiper blade adapter 20a is connected by the fluid connection connection extensions 28a, 28'a to the liquid channels in the deflector elements 14a, 14'a. The two liquid connection extensions 28a, 28'a are identical, in particular of the same length, in particular, measured along the length of a respective longitudinal axis 30a, 30'a. The two liquid connection extensions 28a, 28'a are aligned.

[0041] The two liquid connection extensions 28a, 28'a are provided at opposite ends along the longitudinal axis 32a of the wiper blade adapter 20a. The two liquid connection extensions 28a, 28'a respectively define opposite plug-in directions 34a, 34'a which are parallel to the longitudinal axis 32a of the wiper blade adapter 20a.

[0042] The windshield wiper device 10a comprises a liquid supply unit 38a. The liquid supply unit 38a is provided for supplying the channel unit 18a with windshield washer fluid (see [Fig.2]).

[0043] The liquid supply unit 38a comprises a coupling end piece 40a. The coupling end piece 40a is designed for clip-on connection with at least one adapter cap 24a.

[0044] The adapter cap 24a comprises a coupling extension 36a. The coupling extension 36a is provided for making a connection with the coupling tip 40a in particular for engaging it in the coupling tip 40a. The coupling extension 36a is at least twice as long as the liquid connection extensions 28a, 28'a, in particular when this dimension is measured along the respective longitudinal axis 30a, 30'a.

[0045] The plug-in axis 42a defined by the coupling extension 36a is parallel to the longitudinal axis 32a of the wiper blade adapter 20a, in particular the adapter cap 24a and / or the adapter base body 32a with a maximum deviation of 10°. The plug-in axis 42a defined by the coupling extension 36a is parallel to the longitudinal axis 30a, 30'a of the liquid connection extensions 28a, 28'a up to a maximum deviation of 10°. The coupling extension 36a is offset in a direction perpendicular to the longitudinal axis 32a of the wiper blade adapter 20a relative to the liquid connection extension 28a, 28'a.

[0046] The liquid supply unit 38a comprises a pipe element 44a for supplying the windshield washer fluid. The wiping device 10a may comprise the wiper arm 10a which comprises in particular a wiper rod 114a and at least one wiper arm adapter (not shown). The wiper rod 114a is a rigid metal rod, in particular a curved one. The wiper arm adapter (not shown) is part of the wiper rod 114a in particular as an end piece and preferably as a locking type end piece.

[0047] The wiper arm 110a, in particular the wiper arm adapter, has a transverse axis 46a parallel to the pivot axis 68a of the wiper blade, in particular in the connected state of the wiper arm 110a to the wiper blade adapter 20a. In particular, the wiper arm adapter is in one piece with the wiper rod 114a. The coupling extension 36a is offset in a direction perpendicular to the transverse axis 46a of the wiper blade adapter 20a relative to the liquid connection extension 28a, 28'a.

[0048] The pipe element 44a, in particular the liquid supply unit 38a, extends along the longitudinal axis 66a of the wiper arm 110a over the entire extension of the wiper rod 114a, at least up to the wiper arm adapter.

[0049] The coupling tip 40a has a pipe extension 48a for connection with the pipe element 44a. The coupling tip 40a has a coupling orifice 50a for receiving the coupling tip 36a for fluid connection with the wiper blade adapter 20a.

[0050] The clip-on connection between the coupling end piece 40a and the wiper blade adapter 20a is made inside the coupling end piece 40a. The clip-on connection between the coupling end piece 40a and the wiper blade adapter 20a is made by the coupling extension 36a inside the coupling end piece 40a.

[0051] The coupling extension 36a comprises two clipping elements 52a, 52'a which together form a coupling end piece tip 36a.

[0052] The coupling end piece 40a has a clipping recess 54a. The clipping recess 54a is provided at the end of the coupling orifice 50a facing the pipe extension 48a. The clipping recess 54a is part of the coupling orifice 50a.

[0053] The pipe element 44a is connected to the wiper arm 110a, in particular to the wiper rod 114a. The coupling end piece 40a is connected exclusively by the pipe element 44a, in particular exclusively indirectly to the wiper arm 110a. The pipe element 44a is connected to the wiper arm 110a in particular by clipping. The coupling end piece 40a is movably mounted on the wiper arm 110a, in particular by the connection of the pipe element 44a to the wiper arm 110a. The coupling end piece 40a is provided on the wiper arm 110a partly at the wiper arm adapter. The coupling end 40a is mounted partly directly behind the level of the wiper arm adapter on the wiper arm 110a.

[0054] The adapter cap 24a includes a seal 56a for sealing the fluid connection with the coupling tip 40a. The seal 56a is provided externally around the coupling extension 36a.

[0055] The coupling end piece 40a is in the form of a female connector. The coupling end piece 40a is designed to partially receive the adapter cap 24a. The coupling end piece 40a is designed to largely receive the coupling extension 36a. The coupling end piece 40a is designed to receive at least 80% of the extension of the coupling extension 36a, measured in particular along the longitudinal axis 58a of the coupling extension 36a.

[0056] The coupling end piece 40a comprises at least one pipe coupling element 60a and at least one adapter coupling element 62a which are connected. The adapter coupling element 62a and the pipe coupling element 60a are made in one single piece. The adapter coupling element 62a and the pipe coupling element 60a are in one piece.

[0057] The pipe coupling element 60a is designed for direct connection to the pipe element 44a. The pipe coupling element 60a comprises the pipe extension 48a. The adapter coupling element 62a is designed for direct connection to the wiper blade adapter 20a, in particular to the adapter cap 24a. The adapter coupling element 62a at least largely delimits the coupling opening 50a.

[0058] The coupling end piece 40a comprises a valve element 64a (see [Fig. 3]). The valve element 64a is in the form of a valve or a non-return valve. The valve element 64a is integrated into the coupling end piece 40a, in particular being inside the coupling end piece 40a. The valve element 64a is provided in the pipe coupling element 60a.

[0059] The valve element 64a is in the form of a duckbill valve. The valve element 64a is made of an elastomer, in particular a mixture of elastomers.

[0060] [Fig.4] schematically shows the method of mounting the wiping device 10a.

[0061] In at least one step of the method, in particular in a plugging step 70a, the wiper arm 10a with the coupling end piece 40a is engaged on the wiper blade adapter 20a.

[0062] In at least one method step, in particular in the plugging step 70a, the coupling end piece 40a is engaged on the coupling extension 36a.

[0063] In at least one method step, in particular in a further insertion step 72a, the retaining spring 26a is pivotably connected to the adapter base body 22a and the wiper arm adapter is fixed to the wiper blade adapter 20a.

[0064] Figures 5 to 7 show other exemplary embodiments of the invention. The following descriptions and the drawings are mainly limited to the differences between the exemplary embodiments; for components bearing the same references, in particular components having the same references, reference will in principle be made to the drawings or to the description of the other exemplary embodiments, in particular to Figures 1 to 4. To distinguish the exemplary embodiments, the references will be supplemented by the suffix a in the example of Figures 1 to 4 and in the examples of Figures 5 to 7 the suffix (a) will be replaced by the suffix (b) and (c).

[0065] [Fig. 5] shows a variant of wiping device 10b. In particular, the variant of wiping device 10b comprises a variant of coupling extension 36b and a variant of coupling tip 40b.

[0066] The coupling extension 36b comprises two clipping elements 52b, 52'b which are spaced from the tip of the coupling extension 36b, in particular, along the extension of the coupling extension 36b along the longitudinal axis 58b of the coupling extension 36b.

[0067] The coupling end piece 410b has a clipping recess 54b. The clipping recess 54b is provided on the adapter coupling element 62b of the coupling end piece 40b. The clipping recess 54b is part of the coupling hole 50b.

[0068] The coupling end piece 40b comprises a valve element 64b (see [Fig. 3]). The valve element 64b is in the form of a valve or a check valve. The valve element 64b is integrated into the coupling end piece 40b, in particular it is in the coupling end piece 40b. The valve element 64b is installed in the adapter coupling element 62b. In this exemplary embodiment, the seal 56b is optional.

[0069] Figures 6 and 7 show a variant of wiping device 10c. In particular, this variant of wiping device 10c comprises a variant of coupling extension 36c and a variant of coupling tip 40c.

[0070] The coupling end piece 40c is in two parts. The coupling end piece 40c comprises a pipe coupling element 60c and an adapter coupling element 62c. The pipe coupling element 60c and the adapter coupling element 62c are connected to each other by a snap-on connection; the adapter coupling element 62c comprises a snap-on element 76c for the snap-on connection and the pipe coupling element 60c comprises a corresponding snap-on recess 82 for making the snap-on connection. The pipe coupling element 60c and the adapter coupling element 62c are two separate parts for making a snap-on connection, preferably inseparable. The pipe coupling member 60c and the adapter coupling member 62c are connected to each other in a sealing manner by a gasket 74c.

[0071] The coupling end piece 40c is in the form of a female connector having at least one coupling orifice 50c substantially in the form of a closing cylinder. The outer contour 86c of the coupling orifice 50c not facing the pipe coupling extension 48c is at least substantially in the form of a closing cylinder. The coupling extension 36c comprises a key-shaped element 84c.

[0072] The pipe coupling element 60c is designed for a clip-on connection with the coupling extension 36c (see [Fig. 7]). The clip-on connection is feasible and in particular it is achieved on the side of the coupling opening 50c facing the wiper blade adapter 20c and in particular in the connected state of the wiper blade adapter 20c and the coupling end piece 40c.

[0073] The pipe coupling element 60c comprises a further clipping element 78c for making a clipping connection with the coupling extension 36c. The coupling extension 36c comprises a key-shaped protruding portion, in particular the key-shaped element 84c comprises a clipping recess 80c for a clipping connection with the coupling end piece 40c, in particular with the clipping element 78c.

[0074] NOMENCLATURE OF MAIN ELEMENTS

[0075] 10 Windshield wiper device

[0076] 12 Deflector Unit

[0077] 14 Deflector element

[0078] 16 Longitudinal axis of the deflector element

[0079] 18 Channel Unit

[0080] 20 Wiper blade adapter

[0081] 22 Adapter base body

[0082] 24 Adapter cap

[0083] 26 Retaining spring

[0084] 28 Liquid connection extension

[0085] 30 Longitudinal axis

[0086] 32 Longitudinal axis of the wiper blade adapter

[0087] 34 Plug-in connection direction

[0088] 38 Liquid supply unit

[0089] 40 Coupling tip

[0090] 42 Plug-in axis

[0091] 44 Pipe element

[0092] 48 Pipe extension

[0093] 50 Coupling orifice

[0094] 52 Clipping element / hooking element

[0095] 54 Clipping recess

[0096] 56 Seal

[0097] 60 Pipe coupling element

[0098] 62 Adapter coupling element

[0099] 64 Valve element

[0100] 66 Longitudinal axis of the wiper arm

[0101] 68 Wiper blade pivot axis

[0102] 74 Sealing gasket

[0103] 78 Other clipping element

[0104] 80 Clipping recess

[0105] 84 Key-shaped element

[0106]

[0107]

[0108]

[0109]

[0110] [yes] 100 Wiper 102 Wiper blade 106 Wiper lip 108 End cap 110 Wiper arm 114 Wiper rod

Claims

Claims

1. Windscreen wiper device comprising - at least one deflector unit (12a-12c) and at least one channel unit (18a-18c) integrated in at least one deflector unit (12a-12c) and at least one wiper blade adapter (20a-20c) which has at least one adapter cap (24a-24c) and at least one adapter base body (22a-22c) and which is designed for coupling with at least one wiper arm (HOa-110c), - a liquid supply unit (38a-38c) designed for supplying the channel unit (18a-18c) with windscreen washer fluid and which has at least one coupling piece (40a-40c) for clip-on connection with at least one adapter cap (24a-24c), characterized in that - the coupling end piece (40a-40c) comprises at least one pipe coupling element (60a-60c) and at least one adapter coupling element (62a-62c) which are connected,- the pipe coupling element (60c) and the adapter coupling element (62c) are connected by a clip-on connection.,

2. Wiping device according to claim 1, characterized in that the adapter cap (24a-24b) comprises at least one seal (56a-56b) for providing a liquid-tight connection with the coupling end piece (40a-40b).

3. Wiping device according to claim 1 or 2, characterized in that the coupling end piece (40a-40c) is designed as a female connector for at least partially receiving at least one adapter cap (24a-24c).

4. Wiping device according to one of the preceding claims, characterized in that the coupling end piece (40c) is designed as a female connector with a coupling opening (50c) at least substantially in the form of a closing cylinder.

5. Wiping device according to one of the preceding claims, characterized in that

6.

7.

8. the coupling end piece (40a-40b) comprises at least one element of valve (64a-64b) made as a non-return valve. Wiping device according to claim 5, characterized in that the valve element (64a-64b) is designed as a duckbill valve. Windscreen wiper comprising a wiping device (10a-10c) according to one of claims 1 to 6. Method for mounting a windshield wiper device (10a-10c) according to one of claims 1 to 6.

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