Wiper blade device

Abstract

The invention is based on a wiper blade device (10) for connection to at least one wiper arm (12), comprising: a wiper blade (14); at least one wiper blade adapter (16); at least one valve unit (18) arranged in the wiper blade adapter (16), to which fluid, in particular wiping liquid, is supplied via exactly one fluid channel (20); and at least one fluid outlet unit (22) coupled to the valve unit (18), the fluid outlet unit in particular comprising at least one fluid line element (24), the at least one fluid line element having at least one fluid outlet opening (26) for fluid outlet, and the fluid outlet unit being configured to discharge fluid, in particular wiping liquid, in a targeted manner in two wiping directions of the wiper blade (14). It is proposed that the valve unit (18) comprises a rotatable insert (28) which is configured to enable at least two valve positions for fluid outlet.

Description

Technical Field

[0001] The invention relates to a wiper blade device. Background Art

[0002] It is known to propose a wiper blade device for connecting to at least one wiper arm, comprising: a wiper blade; at least one wiper blade adapter; at least one valve unit arranged in the wiper blade adapter, to which fluid, in particular wiping liquid, is supplied via exactly one fluid channel; and at least one fluid output unit coupled to the valve unit, the at least one fluid output unit in particular comprising at least one fluid conduit element, the at least one fluid conduit element having at least one fluid output opening for fluid output, and the at least one fluid output unit being configured to output fluid, in particular wiping liquid, in a targeted manner toward two wiping directions of the wiper blade. Summary of the invention

[0003] The present invention is based on a wiper blade device for connection to at least one wiper arm, comprising: a wiper blade; at least one wiper blade adapter; at least one valve unit arranged in the wiper blade adapter, to which fluid, in particular wiping liquid, is supplied via exactly one fluid channel; and at least one fluid output unit coupled to the valve unit, the at least one fluid output unit in particular comprising at least one fluid conduit element, the at least one fluid conduit element having at least one fluid output opening for fluid output, and the at least one fluid output unit being configured to output fluid, in particular wiping liquid, in a targeted manner toward two wiping directions of the wiper blade.

[0004] It is proposed that the valve unit comprises a rotatable insert which is provided for realizing at least two valve positions for the fluid discharge.

[0005] The wiper blade device is preferably provided for use on a vehicle, in particular a motor vehicle. In this context, a “wiper blade device” is to be understood in particular as a device comprising at least one wiper blade and at least one wiper blade adapter. In this context, a “wiper blade adapter” is to be understood in particular as an adapter which has a contact region to a wiper blade component and is permanently connected to the wiper blade component. This is preferably understood as an adapter which is provided for providing a coupling region of a wiper blade component for coupling and / or contacting with a wiper arm component, particularly preferably with a wiper arm adapter. In this context, a “wiper arm adapter” is to be understood in particular as an adapter which has a contact region to a wiper arm component and is permanently connected to the wiper arm component and is provided for providing a coupling region of a wiper arm component for coupling and / or contacting with a wiper blade adapter.

[0006] Furthermore, in this respect, a "valve unit" should be understood in particular as a unit comprising at least one valve and / or at least one valve member. Preferably, this should be understood as a unit that is provided for controlling and / or regulating the flow of a fluid, in particular a liquid, particularly preferably a wiping liquid. Particularly preferably, this should be understood as a unit that is provided for controlling and / or regulating the flow amount, the flow direction and / or the general flow. "Set" should be understood in particular as being specially designed and / or equipped. "An object is provided for a certain function" should be understood in particular as that the object performs and / or implements the determined function in at least one application state and / or operating state. The valve unit preferably has exactly one fluid inlet coupled to the fluid channel, which is provided for supplying a fluid to the valve unit, in particular supplying a wiping liquid. Furthermore, the valve unit preferably has a valve housing in which an insert is rotatably received. Advantageously, the insert should be at least mostly completely located inside the valve housing. Here, "at least mostly" should be understood in particular as at least 50%, preferably at least 70%, and particularly preferably at least 90%.

[0007] By means of the design of the wiper device according to the invention, it can be advantageously achieved that the valve unit comprises a rotatable insert which is provided for achieving at least two valve positions for the fluid output. In particular, by means of the design of the rotatable insert, an advantageous valve unit can be provided. Preferably, a valve unit can thereby be provided which is at least largely arranged in the wiper blade adapter. Preferably, the flow of wiping liquid can thereby in particular be controlled and / or regulated. The electric controller of the valve is advantageously provided for reducing the loss of water to a minimum. This in turn can advantageously improve the reaction time between the actuation of the wiper device and the wiping process. Here, the valve unit can also advantageously achieve at least two further valve positions in order to be able to output a fluid, in particular wiping liquid, to each side of the wiper blade. It is advantageous here that only exactly one fluid channel is required to supply the valve unit. Furthermore, the wiper device can advantageously be operated with only one double pump which delivers the fluid, in particular wiping liquid, to the valve unit.

[0008] In this context, “at least one valve unit comprises at least one rotatable insert” is to be understood in particular as meaning that the valve unit comprises at least one element which is at least substantially rotatable. This is to be understood in particular as meaning that the element is at least partially mounted so that it can move. It is preferred that the element is mounted so that it can move about an axis parallel to its main extension direction. It is particularly preferred that the element is mounted in the housing of the valve unit so that it can move about an axis parallel to its main extension direction. The “main extension direction” of an object is to be understood in particular as meaning a direction which runs parallel to the direction of the longest edge of the smallest geometric cuboid which still completely encloses the object.

[0009] The rotatable insert "is arranged to realize at least two valve positions for the fluid output" is to be understood in this context in particular to mean that the rotatable insert has at least two different positions, in particular rotational positions, which are respectively arranged to enable the fluid to be output under a fluid pressure applied to the valve unit, in particular through a fluid output opening. The rotatable insert preferably has at least two different positions, which are respectively arranged to enable the fluid to be output under a fluid pressure applied to the valve unit, in particular through fluid output openings that are different from each other. Preferably, the insert is arranged in at least one valve position for at least partial flow through of a fluid, in particular a wiping fluid. Particularly preferably, the insert is arranged to provide at least two different valve positions by different rotations. In this context, a "valve position" is to be understood in particular as a position in which the valve unit only allows a fluid flow that can occur in this position. In this context, there is also in particular a valve position which is a neutral position (neutraleStellung) in which no fluid flow is allowed.

[0010] It is further proposed that the rotatable insert is designed in one piece. One piece is also advantageously to be understood as being integral. "In one piece" is to be understood in particular as being formed as an integral body. This integral body is preferably produced from a single blank, block and / or casting, particularly preferably in an injection molding process, in particular a single-component and / or multi-component injection molding process. This advantageously achieves robustness against external forces. In particular, this advantageously enables fluid impermeability. In addition, an advantageously simple installation of the rotatable insert is achieved.

[0011] In addition, it is proposed that the rotatable insert has at least one side opening, which has an overlap at least partially with the fluid pipeline element of the fluid output unit in at least one valve position. Preferably, the side opening of the rotatable insert has at least a substantially complete overlap with the fluid pipeline element of the output fluid in a valve position. The rotatable insert preferably has a plurality of mutually offset side openings, which have overlaps at least partially with different fluid pipeline elements of the fluid output unit according to the valve position. In this regard, "side opening" should be understood in particular as a notch arranged in the cover surface of the rotatable insert. For this, it is preferably understood in particular as an opening that is provided for locally coupling the inner space of the insert with the surrounding of the insert in fluid technology. In this regard, "having an overlap" should be understood in particular as at least one radially outwardly directed surface normal of the surface (surrounded by the side opening) of the rotatable insert and at least one surface normal of the surface surrounded by the opening of the fluid pipeline element have at least one intersection point. Here, starting from the rotatable insert, along the surface normal, the intersection point is not located behind another intersection point of the surface normal of the surface of the rotatable insert surrounded by the side opening and at least one further component. Preferably, at least 50%, particularly preferably 70%, and very particularly preferably 90% of the surface normals of the surface of the rotatable insert surrounded by the side opening have at least one intersection point with at least one surface normal of the surface surrounded by the opening of the fluid line element. As a result, it is particularly advantageous that a fluid flow can be enabled and / or prevented by the rotatable insert.

[0012] It is further proposed that the rotatable insert of the valve unit is arranged to realize at least three switching positions, wherein each switching position corresponds to a defined rotational posture of the insert. The rotatable insert preferably has at least one first switching position and a second switching position, in which at least one side opening has an overlap with at least one fluid pipeline element of the fluid output unit. The rotatable insert preferably has at least one neutral switching position, in which no side opening has an overlap with at least one fluid pipeline element of the fluid output unit. In this regard, a "rotational posture" is to be understood as a rotation at any angle around the main extension direction of the rotatable insert. Preferably, in each of the at least three different switching positions, a fluid flow that can only be realized in the switching position is realized. Advantageously, uncontrolled fluid output can be prevented.

[0013] In particular, this advantageously enables water saving of the wiper device. In addition, a fluid output that is synchronized with the wiping direction can advantageously be achieved. Alternatively, it is conceivable that at least one wiper blade does not have a preferred wiping direction relative to the surface to be wiped at any time during the wiping process. For example, a rotating wiper blade can be used. In this case, the valve unit can also advantageously control the fluid output so that sufficient fluid is supplied to the surface to be cleaned for cleaning in a fluid-saving manner.

[0014] In addition, it is proposed that at least one spring unit is provided for supporting the rotation of the rotatable insert. Preferably, the spring unit is particularly formed by a return spring, which is provided for moving the rotatable insert into a defined switching position, in particular into a neutral switching position, in the absence of sufficient reaction force. The spring unit is preferably formed by a helical spring. However, in principle, other configurations of the spring unit that are considered meaningful by a person skilled in the art can also be considered. It is particularly preferred that the spring unit is provided for the indirect coupling of the rotatable insertion tool with the housing. A "spring unit" should be understood in particular as a macroscopic element having at least one extension, which can be elastically changed by at least 10%, in particular by at least 20%, preferably by at least 30%, and particularly advantageously by at least 50% under normal operating conditions, and the element in particular generates a reaction force that is dependent on the change of the extension and is preferably proportional to the change, and the reaction force reacts to the change. The "extension" of an element should be understood in particular as the maximum distance between two points of the vertical projection of the element on a plane. A "macroscopic element" should be understood in particular as an element having an extension of at least 1 mm, in particular at least 5 mm, preferably at least 10 mm. “The spring unit is provided for the rotational support of the rotatable insert” is to be understood in particular to mean that at least one rotatable insert is connected to at least one spring unit. In particular, the spring unit should support the rotational movement of the rotatable insert in at least one direction. Preferably, the spring should in particular rotate the rotatable insert into the starting position when there is no external force to rotate the rotatable insert. In particular, a fast reaction time during fluid output can be achieved thereby. It is conceivable that the starting position of the rotatable insert advantageously enables different fluid passage directions and / or fluid blocking directions of the valve unit. In particular, it can be advantageous that the valve unit in the initial position does not allow a fluid flow and / or enables a fluid flow in a specific direction. It is advantageous here that no additional external force is required to achieve this position, which can be energetically advantageous. Advantageously, the starting position enables a fluid flow, so that even in the event of a malfunction of the valve unit, a wiping function with wiping fluid can be achieved in at least one wiping direction.

[0015] In addition, a wiper blade device is proposed, characterized in that an electric drive is arranged in the wiper blade adapter, which is provided for rotating a rotatable insert of the valve unit. In this regard, "an electric drive arranged in the wiper blade adapter" should be understood in particular to mean that the wiper blade adapter includes at least one electric drive element, which is at least mostly contained inside the adapter housing. In this regard, it should be understood in particular that the element is at least mostly located inside the adapter housing. Here, "at least mostly" should be understood in particular to mean at least 50%, preferably at least 70%, and particularly preferably at least 90%. In a particularly advantageous embodiment, the electric drive is arranged 100% inside the adapter housing. Advantageously, the electric drive can rotate the rotatable insert into a valve position that enables a fluid flow. Advantageously, thereby achieving robustness against external forces and ensuring insensitivity to moisture. Advantageously, therefore, the transmission of force from the electric drive to the rotatable insert requires only a minimum of mechanical components.

[0016] In addition, it is proposed that the electric drive has at least one slot (Steckplatz) for receiving a side pin of a wiper arm for supplying energy. Preferably, the wiper blade adapter is at least partially configured to be mechanically connected to the wiper arm through a connection between the side pin and the slot. In this regard, a "slot" should be understood in particular as an opening, in particular an electrical opening, in the housing of the electric drive, which is configured to receive a side pin, in particular an electrical side pin. Preferably, the slot is in particular configured to receive a plug with a defined shape, such as a cylindrical plug. The slot is in particular used to receive one end of a power supply line. Preferably, the slot is in particular configured as a connecting piece of the electric drive, which is configured to connect the power supply line. In this regard, a "power supply line" should be understood in particular as a line that is configured at least in operation to conduct electricity, in particular from a storage device, and in particular to conduct electricity in a target direction, for example, in particular in the direction of the drive. For this purpose, it is preferably understood in particular as at least one cable and / or cable channel, whereby electricity from the storage device is conducted in particular by means of a voltage. The electric drive can thus rotate a rotatable insert of the valve unit to in particular control and regulate. As a result, the valve unit can in particular be used to control and regulate the wiper liquid. Advantageously, by providing at least one slot for receiving a side pin for the power supply, it is also ensured that the electrical connection can be established particularly easily. In particular, it is conceivable that the guide pins for suspending the wiper blade device on the wiper blade also include an electrical connection. This advantageously enables a simple installation and removal of the wiper blade device, in particular the wiper blade adapter. Alternatively, it is conceivable that the electric drive is supplied with energy wirelessly. In this context, "wirelessly" is to be understood as meaning that the electric drive has no electrical connection to other components outside the adapter. In particular, the electric drive can be operated inductively, by means of a solar cell and / or by a battery. In this context, it is conceivable that the side pins are used only as guide pins for suspending the wiper blade device.

[0017] It is further proposed that the wiper blade adapter has at least one first housing for receiving an electric drive and at least one second housing separated from the first housing, the second housing being used to guide a rotatable insert. In this respect, "separated" is to be understood as meaning that at least two housings are at least partially shielded from each other by at least one wall of the housing. Here, the housings can advantageously share at least one wall, which in particular can also have an opening, in order to advantageously connect the corresponding internally located elements. It is conceivable that at least two housings are formed from one piece, in particular in one piece. Advantageously, the one-piece housing is divided into two separate housings by at least one inner wall. At least one inner wall can advantageously be configured with at least one opening for connecting the drive located in the first housing to the rotatable insert located in the second housing. It is conceivable that at least two housings do not share an outer wall. It is also conceivable here that at least two outer walls of the respective housings have and / or do not have contact surfaces. The rotating insert is preferably arranged inside the second housing, but in particular the rotational capability of the insert is not restricted here. In this respect, "housing" is to be understood as a sheath that is at least substantially closed in material. Advantageously, the fluid-conducting insert and the electrically conductive insert of the adapter are separated from one another. In particular, it is possible to achieve that the energy supply and the fluid supply of the adapter are carried out at spatially separated locations.

[0018] It is further proposed that at least one fluid line element is formed integrally with the second housing. Preferably, the at least one fluid line element is formed by at least one bore in the second housing. Preferably, the at least one fluid line element extends from the receiving region of the second housing for the rotatable insert to the outer edge of the second housing. This advantageously enables the adapter to be provided in a compact form. Furthermore, in particular, an integrated fluid line can be provided thereby.

[0019] Furthermore, the present invention is based on a wiper device having a wiper blade device and a wiper arm, the wiper arm having a wiper arm adapter for coupling to the wiper blade device. It is proposed that the wiper arm adapter has at least one side pin for supplying energy to the wiper blade device. The wiper arm adapter is preferably formed by a side lock adapter, which has a guide pin for rotatably receiving the wiper blade adapter and has a safety hook for additionally securing the wiper blade adapter in at least one rotational position. In particular, the side pin for the energy supply is provided as an equivalent guide pin. Advantageously, a simple installation is achieved here. In particular, the replacement of the wiper blade adapter can be carried out in an advantageously simple manner. Advantageously, by arranging the side pins as guide pins and arranging the additional protection, the stability of the energy supply against external forces can also be ensured. Advantageously, by arranging the side pins as guide pins and arranging the additional protection, the resistance of the energy supply against moisture can also be ensured.

[0020] The windshield wiper device according to the invention is not to be restricted to the above-described applications and embodiments. In particular, the windshield wiper device according to the invention may have a number of individual elements, components and units different from the number mentioned herein in order to implement the functionality described herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Further advantages can be derived from the following description of the drawings. An embodiment of the invention is shown in the drawings. The drawings, the description and the claims contain many features in combination. A person skilled in the art may also consider these features individually and combine them into other meaningful combinations.

[0022] in:

[0023] Figure 1 A schematic plan view shows a wiper blade device according to the invention, which comprises a wiper blade and a wiper blade adapter mounted on a wiper arm.

[0024] Figure 2 A wiper blade adapter of a wiper blade device according to the invention is shown in a schematic exploded perspective view, having two housings and a rotatable insert with a first fluid outlet valve position,

[0025] Figure 3 A perspective detailed schematic view of a rotatable insert of a wiper blade adapter in the position of a second fluid outlet valve,

[0026] Figure 4 The rotatable insert part of the wiper blade adapter is shown in a perspective detailed illustration in the position of the fluid choke valve. DETAILED DESCRIPTION

[0027] Figure 1 1 shows a top view of a wiper blade device 10. The wiper blade device 10 comprises a wiper blade 14 which has a wiper blade adapter 16. The wiper blade device 10 is provided for connection to a wiper arm 12. Figure 1 1 shows a wiper blade device 10 connected to a wiper arm 12. The connection between the wiper blade device 10 and the wiper arm 12 is realized at the end region of the wiper arm 12. The wiper arm 12 is anchored to the vehicle at the opposite end region. The wiper arm 12 can be moved by the anchoring element and guides the wiper blade device 10 therein.

[0028] At the end of the wiper arm 12 facing away from the anchoring element, the wiper arm 12 has a wiper arm adapter 44. The wiper arm adapter 44 is formed by a side lock adapter. The wiper arm adapter 44 has a side pin 38. The side pin 38 is designed as a guide pin. The wiper arm adapter 44 also has a safety hook 46. However, in principle, other designs of the wiper arm adapter 44 that are meaningful to a person skilled in the art are also conceivable.

[0029] The wiper blade device 10 has a wiper blade adapter 16. In addition, the wiper blade device 10 has a wiper blade 14. The wiper blade 14 has a wind deflector unit, two spring rails and a wiper lip. The wiper blade 14 wipes water on the vehicle window in the operating state. The wiper lip of the wiper blade 14 is provided for resting on the vehicle window and wiping water on the vehicle window during the wiping operating state. The wiper lip is held in the wind deflector unit by the spring rails. The wind deflector unit of the wiper blade 14 is constructed in two parts and includes two wind deflector elements. However, it is also conceivable in principle that the wind deflector unit is constructed in one piece and includes a wind deflector element.

[0030] The wiper blade adapter 16 is fixedly connected to the wiper blade 14. The wiper blade adapter 16 is connected to a spring rail of the wiper blade 14 (further not visible). The wiper blade adapter 16 has two housings 40, 42 separated from each other. The two housings 40, 42 are designed to be separated from each other in terms of material and mechanically connected to each other. In addition, the wiper blade adapter 16 comprises a valve unit 18, which is supplied with wiping fluid via a fluid channel 20. The fluid channel 20 is provided for conveying wiping fluid from a wiping fluid reservoir (not shown) to a fluid outlet unit 22. The fluid channel 20 is guided on the wiper arm 12 and from an anchor of the wiper arm 12 to the fluid outlet unit 22. The valve unit 18 comprises a rotatable insert 28, which is provided for realizing three valve positions for the fluid outlet. The rotatable insert 28 is guided in a second housing 42. The second housing 42 is provided for guiding the rotatable insert 28. The second housing 42 has a cylindrical receiving area for rotatably receiving the rotatable insert 28. The rotatable insert 28 has a hollow cylindrical base 48. The rotatable insert 28 also has a plurality of side openings 30, 30', 30". The first side opening 30 is formed by an inlet opening, which is provided for connection with the fluid channel 20. In addition, a plurality of second side openings 30' are formed by the first outlet opening for realizing a first wiping liquid output direction 50. In addition, a plurality of third side openings 30" are formed by the second outlet opening for realizing a second wiping liquid output direction 52. The side openings 30 , 30 ′, 30 ″ are each formed by a recess in the outer surface of the hollow cylindrical base body 48 . The rotatable insert 28 is constructed in one piece. The rotatable insert 28 is constructed in one piece. In addition, the wiper blade device 10 has two spring units 32 for supporting the rotation of the rotatable insert 28 . The wiper blade adapter 16 has the two spring units 32 . The two spring units 32 are arranged in a second housing 42 (not shown in detail). The two spring units 32 are respectively connected to the rotatable insert 28 at one end and to the second housing 42 at the other end. Even in the absence of external force, the spring units 32 can move the rotatable insert 28 into a switching position (initial position).

[0031] Furthermore, the wiper blade device 10 also has an electric drive 34 arranged in the wiper blade adapter 16. The electric drive 34 is provided for the rotatable insert 28 of the rotary valve unit 18. A first housing 40 is provided for receiving the electric drive 34. The electric drive 34 has a slot 36 for receiving a side pin 38 of the wiper arm 12 for power supply. It is conceivable that the energy supply of the electric drive 34 is located inside the wiper blade adapter 16 and is independent of the slot 36. For example, a battery and / or a solar cell can also be mounted on the housing 40 with the electric drive 34 for energy supply, wherein the receiving part of the side pin 38 serves as a guide and retaining part of the wiper blade device 10. The side pin 38 of the wiper arm adapter 44 is provided for the energy supply of the wiper blade device 10. In the coupled position of the wiper blade device 10 and the wiper arm 12 ( Figure 1 ), the side pin 38 is inserted into the slot 36 provided for this purpose on the electric drive 34 of the wiper blade adapter 16. The side pin 38 is connected to the electronic components of the vehicle. The side pin 38 enables energy to be supplied to the slot 36 provided for receiving the side pin 38. The side pin 38 serves as a fastening element for the wiper blade adapter 16. The electric drive 34 is supplied with energy via the side pin 38.

[0032] An electric drive 34 is arranged within the first housing 40 of the wiper blade adapter 16, which is provided for rotating the rotatable insert part 28. For this purpose, the electric drive 34 also has a drive shaft 54, which at least partially protrudes into the rotatable insert part 28. The drive shaft 54 ​​is connected to the rotatable insert part 28 in a rotationally fixed manner (further information is not visible). The rotation of the rotatable insert part 28 of the valve unit 18 is provided for achieving three switching positions ( Figure 2 , Figure 3 , Figure 4 ), wherein each switching position corresponds to a defined rotational position of the rotatable insert 28. The wiping liquid is conveyed further in different directions or is completely prevented from being conveyed further via the different switching positions. Overall, the electric drive 34 can thus rotate the rotatable insert 28 in the following manner, thereby achieving different valve positions.

[0033] The wiper blade device 10 has a fluid output unit 22 coupled to the valve unit 18. The fluid output unit 22 is configured to output fluid, in particular wiping liquid, in a targeted manner toward the two wiping directions of the wiper blade 14. The fluid output unit 22 has a plurality of fluid conduit elements 24, each of which has a fluid output opening 26 to output the fluid. The fluid output unit 22 has, for example, 6 fluid conduit elements 24. The fluid output opening 26 is configured to output wiping liquid in a targeted manner toward the two wiping directions of the wiper blade 14. In principle, it is conceivable that the fluid output opening 26 is provided with nozzles, which are configured to output the fluid in a targeted manner. The fluid conduit element 24 is brought into the second housing 42. The fluid conduit element 24 is formed by a channel in the second housing 42. The second housing 42 directly delimits the fluid conduit element 24. The fluid conduit element 24 is constructed in one piece with the second housing 42. This advantageously achieves a high fluid tightness of the fluid conduit element 24. In addition, the second housing 42 directly constructs the fluid output opening 26. In principle, however, a separate design of the fluid conduit elements 24 is also conceivable. In particular, a plurality of first fluid conduit elements 24 are provided for discharging fluid in a first wiping fluid discharging direction 50 , while a plurality of second fluid conduit elements 24 are provided for discharging fluid in a second wiping fluid discharging direction 52 .

[0034] In at least one valve position, the side opening 30 at least partially overlaps the fluid conduit element 24 of the fluid outlet unit 22. The second side opening 30' overlaps the first fluid conduit element 24 in the first fluid outlet valve position. The third side opening 30" overlaps the second fluid conduit element 24 in the second fluid outlet valve position. The overlapping of the side openings 30, 30', 30" of the rotatable insert 28 with the fluid conduit element 24 enables a flow of wiping fluid.

[0035] In the first fluid outlet valve position of the rotatable insert 28 of the valve unit 18, the fluid outlet opening 26 is actuated on the side of the wiper blade 14 facing away from the direction of travel. Figure 2 In the second fluid outlet valve position of the rotatable insert 28 of the valve unit 18, the fluid outlet opening 26 is actuated on the side of the wiper blade 14 facing the direction of travel. Figure 3 The third switching position of the rotatable insert 28 of the valve unit 18 prevents any fluid flow through the valve unit 18. The third switching position is Figure 4 The third switching position is designed as a fluid choke position.

[0036] exist Figures 2 to 4In each switching position shown in FIG, the overlap or lack of overlap of the side opening 30 of the rotatable insert 28 with the opening of the fluid conduit element 24 is indicated by an arrow (fluid flow) and / or a cross (fluid flow resistance). Figure 4 , it is shown that a complete blockage of the fluid flow is achieved by making it impossible for the fluid channel 20 to introduce wiping fluid into the rotatable insert 28. In the third switching position, the first side opening 30 is blocked. For this purpose, it is also conceivable to feed wiping fluid into the rotatable insert 28 and to block further feed from there into the fluid line element 24 in all directions.

Claims

1. A wiper blade device (10) for connection to at least one wiper arm (12), comprising: a wiper blade (14); at least one wiper blade adapter (16); at least one valve unit (18) arranged in the wiper blade adapter (16), the at least one valve unit being supplied with fluid via exactly one fluid channel (20); and at least one fluid outlet unit (22) coupled to the valve unit (18), It is characterized in that The valve unit (18) comprises a rotatable insert (28) which is arranged to realize at least two valve positions for the fluid output.

2. The wiper blade device (10) according to claim 1, characterized in that The rotatable insert part (28) is designed as a single piece.

3. The wiper blade device (10) according to claim 1 or 2, characterized in that The rotatable insert (28) has at least one side opening (30, 30', 30") which, in at least one valve position, at least partially overlaps a fluid line element (24) of the fluid outlet unit (22).

4. The wiper blade device (10) according to claim 1 or 2, characterized in that A rotatable insert (28) of the valve unit (18) is provided for realizing at least three switching positions, wherein each of the switching positions is associated with a defined rotational position of the rotatable insert (28).

5. The wiper blade device (10) according to claim 1 or 2, characterized in that At least one spring unit (32) is provided for supporting the rotation of the rotatable insert (28).

6. The wiper blade device (10) according to claim 1 or 2, characterized in that An electric drive (34) is provided which is arranged in the wiper blade adapter (16) and is provided for rotating a rotatable insert part (28) of the valve unit (18).

7. The wiper blade device (10) according to claim 6, characterized in that The electric drive (34) has at least one slot (36) for receiving a side pin (38) of a wiper arm (12) for supplying energy.

8. The wiper blade device (10) according to claim 6, characterized in that The wiper blade adapter (16) has at least one first housing (40) for receiving the electric drive (34) and at least one second housing (42) separate from the first housing (40) for guiding the rotatable insert (28).

9. The wiper blade device (10) according to claim 8, characterized in that The fluid output unit (22) comprises at least one fluid conduit element (24), the at least one fluid conduit element having at least one fluid output opening (26) for outputting fluid, and the fluid output unit (22) is configured to output fluid in a targeted manner toward two wiping directions of the wiper blade (14), and the at least one fluid conduit element (24) is constructed integrally with the second housing (42).

10. The wiper blade device (10) according to claim 1, characterized in that The fluid is a wiping fluid.

11. The wiper blade device (10) according to claim 1, characterized in that The fluid output unit (22) comprises at least one fluid conduit element (24), the at least one fluid conduit element having at least one fluid output opening (26) for outputting the fluid, and the fluid output unit (22) is configured to output the fluid in a targeted manner in two wiping directions of the wiper blade (14).

12. A wiper device having a wiper blade device (10) according to any one of claims 1 to 11 and having a wiper arm (12), the wiper arm having a wiper arm adapter (44) for coupling to the wiper blade device (10), characterized in that The wiper arm adapter (44) has at least one side pin (38) for supplying energy to the wiper blade device (10).

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