FR3106101A1 - Wiper blade device - Google Patents

Abstract

TITLE: Wiper blade device Wiper blade device (12) comprising at least one wiper blade adapter (16) fitted with a wiper arm adapter (20 ) to connect a wiper blade (14) to the wiper arm (18). The wiper blade adapter (16) has a base body member (30) mounted on a wiper blade (24) and an elastic rail (28) as well as a power supply unit ( 42) provided with a link unit (44) for the power supply of a functional unit (38) and another functional unit (40). Figure 2

Description

Wiper blade device

STATE OF THE ART

A wiper device is already known comprising at least one wiper blade adapter which can receive at least one wiper blade adapter for connecting a wiper blade to an arm of the wiper. wiper, the wiper blade adapter having at least one base body member which mounts to a wiper blade and / or at least one resilient rail of a wiper blade .

There is provided a wiper blade device comprising at least one wiper blade adapter provided with at least one wiper arm adapter for connecting the wiper blade to an arm. wiper blade, the wiper blade adapter having at least one base body member which mounts to the wiper blade and / or at least one resilient rail of the wiper blade as well as at least one power supply unit with a link unit for the power supply of at least one functional unit.

The expression "wiper blade device" in this context designates in particular at least a part and in particular a sub-assembly of a wiper blade in particular of a window wiper blade. and advantageously of a vehicle wiper blade. In particular, the wiper blade device may also include the entire wiper blade, in particular the entire window wiper blade and advantageously the entire wiper blade. vehicle window glass. The wiper blade device can be envisioned comprising at least part of a wiper blade of flat beam construction and / or at least as part of a wiper blade. flat beam and / or as a flat beam construction wiper blade and / or as a flat beam wiper blade. Preferably, the wiper blade device is intended to be applied to a vehicle. Preferably, the wiper blade device is provided for cleaning a surface, in particular a vehicle window.

In particular, the wiper blade device is coupled to a vehicle, including a wiper arm of a vehicle for cleaning a vehicle window. The expression "intended for" means that it is a means specially designed, specially produced and / or specially equipped. The fact that an object is intended for a certain function means in particular that the object fulfills and / or performs this determined function in at least one state of application and / or operation. The expression "operating state" in this context notably means a state in which the wiper blade device is ready to operate for a wiping operation and / or a wiping mode and / or is in a wiping mode. wiping in which the wiper blade passes in particular over a vehicle window and is advantageously applied against the vehicle window.

The expression "wiper arm" designates in particular a unit of the wiper designed to drive in particular, via the wiper arm adapter, the wiper blade device attached to the wiper arm. wiper and in particular a wiper comprising the wiper blade device for cleaning the vehicle window by driving it on the window. Preferably, the wiper arm is mounted on a shaft of the vehicle wiper drive. In particular, the wiper arm is driven by the wiper drive to move on the vehicle window. Preferably, the wiper arm comprises at least one and in particular at least two cleaning liquid supply lines which can be connected to water spray nozzles for cleaning the wiper blade.

The expression "cleaning liquid supply line" designates in particular an element with a channel-shaped recess such as, for example, a pipe or a tube; the channel-shaped recess is used to conduct liquid, including cleaning liquid. The cleaning fluid supply line preferably extends at least a large part of the main extension of the wiper arm from the end of the wiper arm connected to the shaft. drive of the wiper drive of the vehicle to the end of the wiper arm which receives the wiper arm adapter.

The term "main extension" of an object refers to an extension of the object parallel to the longest edge of the smaller parallelepiped that completely surrounds the object. A large part of an extension is preferably at least 70%, preferably at least 80% of the extension. The cleaning liquid supply line is provided for conducting cleaning liquid at least in part from a cleaning liquid reservoir to a wiper blade assembly.

Preferably, the cleaning liquid supply line has a practically circular section. As a variant, it is possible to envisage a cleaning liquid supply pipe having a polygonal section, in particular a section at least substantially square, an elliptical section or any other section which may appear to be of interest to a person skilled in the art. Preferably, the cleaning liquid supply line is installed at least substantially parallel to the wiper arm. The expression “practically parallel” corresponds in particular to the orientation of a direction with respect to a reference direction, in particular in a plane, the direction deviating from the reference direction in particular by a deviation, in particular less than 8 °, advantageously less than 5 ° and in a particularly advantageous manner, less than 2 °.

Preferably, the wiper arm has at least one, and in particular at least two power supply lines such as a cable connected to the wiper blade device, in particular to the power supply unit of the wiper. wiper blade. The power line preferably extends at least a large part of the main extension of the wiper arm from the end of the wiper arm connected to the drive shaft. from the vehicle's wiper drive to the end of the wiper arm that connects to the wiper blade adapter. The power supply line is intended to supply power to at least one electrical component, in particular, a functional unit. The power supply line is designed to supply electric current at least in part from a current generator, in particular a battery, a generator such as an alternator and / or a dynamo to the unit. wiper blade adapter power supply. Preferably, the power supply line is at least substantially parallel to the wiper arm. Preferably, the wiper arm comprises at least one, and preferably in particular exactly two power supply lines.

The expression "wiper arm adapter" designates, in the present context, an adapter which can be connected both to a component of the wiper arm, in particular captively, and also to the adapter of the wiper arm. wiper blade in particular, captive manner and which is provided to connect the wiper blade device including the wiper blade adapter to the wiper arm in particular captive manner. The wiper arm adapter and the wiper blade adapter make it possible to connect the wiper blade device preferably to a vehicle and in particular to the wiper arm of a vehicle.

The expression “wiping blade” designates in particular an element made of an elastic material such as a wiping base body provided with a wiping lip for cleaning a surface, in particular a pane surface, preferably a pane. vehicle, which is moved in contact with the window to be cleaned. Preferably, the wiping blade is made of a natural or synthetic elastomer, in particular a plastic material and / or rubber. It is also conceivable to make the wiper base body in one piece with the wiper lip. The expression "wiping lip" in the present context designates an elastic lip intended to travel with its wiping edge over a window, in particular a vehicle window in order to wipe and / or clean it.

The expression "in a single piece" designates in particular at least one bond by the material, for example, a bond by a welding process, a bonding process, an injection process and / or any other process considered to be of interest by a person skilled in the art and / or advantageously produced in a single piece, such as, for example, a production by casting and / or a production by injection with one or more components or else an extrusion process, for example also a coextrusion process and advantageously an embodiment from a single blank. Preferably, the expression "in one piece" preferably corresponds to a transformation process. Preferably, the wiper blade adapter base body is made to receive an elastic rail for stabilization. In particular, the wiper blade can be implemented at least in part and preferably completely as an elastic rail housing.

The expression "elastic" in this context designates an object which can be repeatedly deformed without the object being damaged or destroyed mechanically and which, in particular after deformation, automatically returns to its basic shape. To receive the elastic rail, the wiper blade forms in particular at least in part, preferably in full, an elastic rail housing. The expression "elastic rail housing" in the present context denotes a channel or a groove provided to at least partially receive the elastic rail. Preferably, the elastic rail housing is provided to surround the elastic rail at least over a significant part of its main extension.

Preferably, the wiper blade forms two elastic rail housings made in the form of lateral grooves provided to each partially receive an elastic rail element. Alternatively or in addition, the wiper blade has at least one elastic rail housing in the form of an elastic rail channel to fully receive an elastic rail. The elastic rail housing is made to connect the wiper blade to an elastic rail. The dimensions of the elastic rail receiving housing are adapted to the shape and size of an elastic rail. Advantageously, the wiper blade is connected by a bond by form, in particular a bond by force with the elastic rail.

The expression “elastic rail” designates in particular a macroscopic component which has at least one extension which, in the normal operating state, and / or in the installed state, is elastically variable by at least 10%, in particular d 'at least 20%, preferably at least 40% and in a particularly advantageous manner, at least 50% and which generates a reaction which depends in particular on a variation of extension and preferably which is proportional to this variation to oppose this variation. In the installed state, the elastic rail comprises in particular an elastic rail element and in particular it comprises in particular at least one heating element. The term "heating element designates in particular an element which converts the energy which it receives into heat, in particular electrical energy and which is intended to transmit this heat to its environment and / or to the component which surrounds it or which is adjacent. The heating element is preferably provided on the elastic rail element and / or on the wiper blade.

Preferably, the heating element is provided to heat the elastic rail element and / or the wiper blade. Preferably, the heating element extends over a large part, in particular over the entire main extension of the wiper blade and / or of the elastic rail. Preferably, the heating element is provided on the side of the wiper blade facing the wiper blade adapter. Preferably, the heating element is installed so that its main extension is at least substantially parallel to the main extension plane of the elastic rail element. The term "main plane of extension" refers to a plane which is parallel to the largest exterior surface of the smallest parallelepiped which completely surrounds an object. Preferably, the heating element is made in the form of a heating resistor. This heating element is formed, for example, by a heating wire and / or a heating film and / or a heating ceramic, in particular a conductor, and / or a heating paste, in particular a conductor. It is also possible to envisage a wiper blade device comprising several heating elements such as, for example, two, three, four or more. Advantageously, the heating element is designed to heat at least the wiping lip to a temperature allowing a cleaning operation to be carried out, in particular, a temperature at which the flexibility of the rubber of the wiping lip is particularly optimal for a cleaning operation. This makes it possible to improve and / or accelerate in particular the cleaning of the vehicle window, in particular for outside temperatures below 0 ° C and / or below the freezing point of water. The heating element gives the wiper blade assembly an advantageous heating function.

Preferably, the wiper blade adapter has an electrical interface element for the connection, including a plug-in connection with a power supply line. Preferably, the spring element connects the electrical interface element to the wiper arm adapter by an electrically conductive connection with at least one heating element. Preferably, the spring element is made at least in part of an electrically conductive metal. Preferably, the spring element is injection molded onto the electrical interface element of the wiper arm adapter to make the connection, preferably by a transformation and / or integration technique. by injection and / or injection such as, for example, multi-component injection. Preferably, the spring member is in the region of the wiper blade adapter on the inner side of the outer wall of the adapter link member. Preferably, the spring member extends into the peripheral range of the bearing member toward the heater element outside of the wiper blade adapter. Advantageously, an electrical connection is provided which allows the wiper blade adapter and / or the wiper arm adapter to tilt relative to the wiper blade adapter. In particular, an advantageous connection is produced, in particular a plug-in connection for the power supply and which is independent of the tilting position of the wiper blade adapter, in particular of the adapter connection element relative to to the basic body element. This allows electrical power to be supplied to the heating element only through a plug-in connection between the wiper arm and the wiper arm adapter. The heating element is embodied in particular as an electric heating element in the form of a film for heating the elastic rail and / or the wiper blade and which is preferably glued to the elastic rail element.

The expression "installed state or mounted state" denotes in the present context in particular a state in which the wiper blade device is ready to operate to perform a cleaning operation and / or to be in cleaning mode. In particular, the wiper blade device is mounted on the wiper arm and / or is coupled to the wiper arm with in particular a mechanical, electrical and / or fluidic coupling against the wiper arm. wiper and wiper blade device. Preferably, the elastic rail element is made at least partly of metal. As a variant or in addition, it can be envisioned that the elastic rail element is at least partly made of a plastic material, a composite material or any other material which will be of interest to those skilled in the art. Preferably, the resilient rail member is at least partly of spring steel. Preferably, the elastic rail, in the unsolicited state, has at least substantially the shape of a bent rod and in particular, advantageously, that of a flattened bent rod. The elastic rail is made in one or more parts. Preferably, the curvature of the elastic rail along the rail in the unstressed state is greater than the curvature of the surface of the vehicle window, in particular of the vehicle window over which the elastic rail passes in the operating mode. operation and / or in the installed state.

The expression "wiper blade adapter" designates in the present context, in particular an adapter which has a contact area with a wiper blade component and which is captively connected to this blade component. wiper being provided to form a coupling zone of the wiper blade component for coupling and / or contacting with a component including a wiper arm adapter on a surface to cleaning, in particular, a vehicle window. The wiper blade adapter and the wiper arm adapter connect the wiper blade assembly to the vehicle in preference to the wiper arm of the vehicle.

The wiper blade adapter has precisely one power supply unit. The expression "power supply unit" denotes in particular an electrical assembly or / and a component which is in particular intended to provide an electrical connection with another electrical component and / or an electrical assembly, in particular the functional unit and / or the other functional unit. The power supply unit includes, for example, an electrical plug. The power supply unit is precisely a link unit designed to supply power to at least one functional unit and at least one other functional unit.

The link unit can be implemented, for example, in the form of a cable and / or other power line element. Advantageously, the connection unit is made as a mechanically flexible power line element, in the form of a film, preferably as a flexible or semi-flexible circuit board. The link unit can be made in one piece, especially with the other functional unit. In particular, the power supply line supplies the electrical energy through which the power supply unit, in particular the connection unit of the power supply unit, supplies power to the functional unit and to the other. functional unit. For example, the functional unit can be provided to supply electric power to another functional unit, in particular a larger number of functional units.

By way of example, the wiper blade adapter comprises at least and more specifically, a bearing element. The bearing member is provided to connect the base body member to the wiper blade adapter link member. Preferably, the bearing member pivotally connects the base body member and the adapter link member. Preferably, the tilting axis is coaxial with the longitudinal axis of the bearing element. Preferably, the bearing element is located in the end zone of the main extension of the wiper blade adapter, in particular of the adapter connecting element and / or of the element. base body. The expression "end zone" of the extension of an object in one direction preferably means an area in which the object starting from one end of the extension of the object comprises in that direction up to 'to a maximum of 10%, preferably a maximum of 25% of the extension of the object. Preferably, the adapter link member is pivotally mounted about the pivot axis, relative to the base body member, by an angle of at least 15 °, preferably at least. at least 45 ° and preferably at least 60 ° and extremely preferably at least 90 °. The adapter link member is pivotally mounted about the tilt or pivot axis with respect to the base body member by a maximum angle of 120 ° and preferably a maximum angle of 90 ° . It is also conceivable to realize the bearing element as a stud or as a rivet. The wiper blade adapter, in particular the connecting element of the adapter, can be made in one piece, especially in one piece with the wiper arm adapter.

The expression "in a single piece" designates a bond at least by the material, for example, produced by a welding process, a bonding process, an injection process and / or any other process which may appear advantageous for the material. 'person skilled in the art and / or advantageously a forming process in a single piece, such as, for example, a production by casting and / or a production by an injection process with one or more components and advantageously an embodiment from a single blank. The expression "in a single part" designates in particular the realization in a single part. Preferably, this part is made from a single blank, a mass and / or by casting, in particular, preferably, by an injection process, in particular an injection process with one or more components. In particular, it is possible to envisage making the adapter connecting element in a single piece, in particular with the wiper arm adapter. Consideration may be given to mounting the wiper arm adapter with the adapter link member pivotably relative to the base body member, about the pivot axis.

The adapter link member preferably has twice the volume or main extension of that of the wiper arm adapter. The expression "volume" of an object in this context refers to the volume of the smallest parallelepiped that just completely surrounds the object. It is also possible to envisage an adapter connecting element and a wiper arm adapter having the same dimensions, the same volumes, the same main extension or even a wiper arm adapter having a double volume, a primary expansion volume as the adapter link member.

The realization of the wiper blade device according to the invention improves comfort. This provides the advantage of heating the wiper blade adapter in particular, its basic body part. Advantageously, any additional power supply for another functional unit is avoided, in particular for an additional heating element for heating the wiper blade device. In particular, an additional connector for the power supply of an additional active heating element is avoided. In particular, this ensures that the cleaning water will not freeze or be thawed in all the parts crossed by this water.

According to another feature, the functional unit is a part of the wiper blade assembly. For example, the functional unit can be produced as an electrical and / or hydraulic connector which comprises in particular at least one electric heating element for heating in particular the hydraulic connection. Advantageously, the functional unit, in particular in the form of the elastic rail, comprises at least one heating element and advantageously precisely one heating element and, particularly advantageously, two heating elements. Thus, in particular, an advantageous heating of the elastic rail is carried out, which in particular provides it with advantageous winter protection properties.

According to another feature, the wiper blade device has the other functional unit. For example, the other functional unit is realized in the form of an electrical sensor, in particular, a temperature sensor and / or a humidity sensor. Advantageously, the other functional unit is made as another heating element. This improves the properties of adaptation to winter conditions. This other heating element can be produced, for example, as a heating resistor and / or as an element with one or more heating films and / or in particular similarly, with a heating element.

By way of example, the other functional unit may be made separately from the power supply unit and / or be part of another unit and / or another assembly. Advantageously, the other functional unit is part of the power supply unit, which allows a particularly efficient realization of this other functional unit. In particular, the other functional unit is produced in particular as a single piece with the connection unit of the power supply unit. As a variant, it is possible to envisage connecting the other functional unit by a welding process and / or a bonding process and / or any other process of interest to those skilled in the art, for example, a mechanical bonding process and / or electric with the link unit. Preferably, the other functional unit and the connection unit are made on a common film which notably has the connection lines which connect the functional unit to the heating lines.

According to another feature, the basic body element has at least one housing for at least partially enveloping reception of the other functional unit. For example, the other functional unit may be on the basic body element including the surface of the basic body element. In particular, at least a part advantageously, a large part of the volume of the other functional unit, is envelopedly received by the base body member. The expression “largely” designates in particular a mass and / or volume fraction of at least 55%, advantageously at least 65%, preferably at least 75% and in a particularly preferential manner, of at least 85% and extremely preferably at least 95%. In particular, at least a part of the other functional unit is integrated during a manufacturing step of a manufacturing process, in particular of a shaping step, of the basic body element in the housing. The expression "integrated" denotes a connection, in particular by the shape, advantageously without play, preferably a connection by the material and / or an enveloping connection. This advantageously transfers heat from the other functional element to the basic body element. For example, at least a partial area of the other functional unit can protrude at least partially from the basic body member.

For example, the functional unit can be connected in parallel to the other functional unit. An advantageously economical electrical circuit is obtained if the link unit is provided to connect the functional unit and the other functional unit by a serial link. In particular, the functional unit and the other functional unit are connected in series.

According to another feature, the wiper blade adapter has at least one liquid delivery unit. The liquid distribution unit is particularly intended to distribute liquid on a window to clean the window, in particular to spray the liquid. Preferably, the liquid is cleaning water. The wiper blade including the wiper lip of the wiper blade is intended for cleaning the glass while passing over the glass. In particular, the wiper blade is intended to wipe off dirt and / or to remove the liquid dispensed on the glass. This allows particularly high comfort.

According to another characteristic, the basic body element comprises at least two liquid channels for the fluid supply of the liquid distribution unit and at least one reception zone for the other functional unit which, according to at least one aspect, is located partially between the two liquid channels. Such an embodiment makes it possible to improve comfort, in particular by efficient heating of the liquid channels. Preferably, the reception area for the other functional unit is oriented perpendicular to the main extension of the elastic rail. In particular, the reception area of the other functional unit is in the middle between the two liquid channels. In particular, the other functional unit is intended to supply heat to the two liquid channels, in particular, to the liquid in the channels. Preferably, the reception area of the other functional unit, in particular of this other functional unit, is in contact with the liquid in the channels.

Preferably, at least a partial area of the reception area of the other functional unit is at least partially in the liquid channel. This makes it possible, in particular, in winter, to provide particularly thorough antifreeze protection. The term "liquid channels" particularly refers to channel-shaped recesses in the base body member. The liquid channels are made in particular separated from each other. Preferably, the liquid channels have a section that is at least substantially circular. As a variant, it is possible to envisage liquid channels having a polygonal section, in particular at least practically square, an elliptical section or any other section which may appear to be of interest to a person skilled in the art.

For example, the other functional unit is in direct thermal contact with the wiper blade adapter base body member. Efficient heat transmission from the other functional unit to the base body member is ensured if the wiper blade adapter has at least one heat receiving member in thermal contact with the other functional unit. The heat receiving element can be in particular in form connection with the other functional unit and in form connection with the basic body element, in particular between the functional unit and the basic body element in the housing. . Preferably, the heat receiving element is directly under the other functional unit and it is in particular designed to conduct the heat supplied by the other functional unit, downwards, in particular in the direction of the basic body element. . The dimensions of the heat receiving element are advantageously adapted to the shape and size of the other functional unit. The heat-receiving element is in particular at least practically produced as a heat-conducting element. The expression "heat conductive element" designates in particular a macroscopic element which is at least practically made of a thermally conductive material. The expression “thermally conductive material” designates in particular a material having a thermal conductivity of at least 5 W / m / K, in particular, of at least 15 W / m / K, advantageously of at least 100 W / m / K and particularly advantageously at least 200 W / m / K at a temperature of 20 ° C. Preferably, the thermally conductive element is at least practically made of copper and / or aluminum and / or silver and / or gold and / or any other thermally conductive material which is technically advantageous for those skilled in the art. Preferably, the thermally conductive element is provided to transmit heat from at least one other functional unit to the basic body element.

The invention also relates to a method of managing a wiper blade device with at least one wiper blade adapter, with a wiper arm adapter for connecting a wiper blade. '' wiper to the wiper arm, the wiper blade adapter having a base body member which mounts to the wiper blade and / or at least one resilient rail of the wiper blade 'windscreen wiper as well as at least one electrical connection unit which supplies electricity to at least one functional unit and at least one other functional unit. This effectively increases comfort and economy.

Further advantages arise from the following description of the drawings. The drawings show an embodiment of the invention. The drawings, description and claims contain many features in combination. Those skilled in the art will be able to take the characteristics separately, in an interesting way, or even to bring them together in interesting combinations.

schematic representation of a wiper blade fitted with a wiper blade device in the condition installed on a vehicle,

detail of the wiper blade device with another functional unit, and

flowchart of a method for making the wiper blade device.

DESCRIPTION OF AN EMBODIMENT

The shows a wiper 10 forming part of a motor vehicle 11. The motor vehicle 11 has a window 22, in particular a windshield and the wiper 10 is provided for cleaning the window 22. But it is also possible to envisage a wiper 10 for cleaning another window of the vehicle 11. Wiper 10 comprises a wiper blade device 12 provided with a wiper blade 14 comprising a wiper blade adapter. window 16 and a wiper arm 18 provided with a wiper arm adapter 20. The wiper blade device 12 is rotatably mounted, in particular via the wiper arm -glace 18, at the outer edge of the window 22. The wiper arm 18 is captively connected to the motor vehicle 11. The wiper blade 14 has a contact zone with the window 22. De Preferably, the wiper blade 14 is designed to be connected to the wiper arm 18 and / or to the wiper arm adapter 20 of the arm 18. The ad Wiper arm adapter 20 has a contact area for wiper arm 18 and is connected to wiper arm 18. Preferably, the wiper arm adapter 20 is provided to provide a coupling area of the wiper arm 18 for coupling and / or contacting with the wiper blade adapter 16.

The shows a part of the wiper blade device 12 in the installed state in the partially open position. The wiper blade device 12 has a wiper blade 24. The wiper blade device 12 has a baffle unit 26. The baffle unit 26 is provided to divert the air flow. acting on the wiper blade device 12, that is to say the circulating wind, and / or pressing the wiper blade 14 against the surface to be wiped, in particular the vehicle window. The baffle unit 26 is notably different from the elastic rail 28, the wiper blade 24 and the wiper arm adapter 20. The baffle unit 26 is at least partly made of synthetic material. The deflector unit 26 in the installed state extends at least a part, and preferably at least a large part of the extension of the wiper blade assembly 12 along the main direction. extension of the elastic rail 28, in particular of the wiper blade 14. The middle area of the deflector unit 26 is continuous to receive the wiper blade adapter 16.

The wiper blade adapter 16 is provided to connect the wiper blade 14 to the wiper arm 18. The wiper blade adapter 16 receives at least one arm adapter wiper 20 for connecting a wiper blade 14 to a wiper arm 18. The wiper arm adapter 20 and the wiper blade adapter 16 connect the wiper blade device 12 to the wiper arm 18. It is also possible to envisage a wiper blade device 12 comprising at least one wiper arm adapter 20.

The wiper blade adapter 16 has a base body member 30 which receives a wiper blade 24 and / or at least one resilient rail 28 of the wiper blade 14. The wiper blade adapter wiper 16 has a power supply unit 42. The power unit 42 has a link unit 44. The link unit 44 is provided for the power supply of at least one functional unit 38. and at least one other functional unit 40. The functional unit 38 is in the form of an elastic rail 28. The elastic rail 28 has a heating element 46. The link unit 44 extends from there. The feed unit 42 to the heating element 46. The base body element 30 could be, for example, a two-part die-cast part and the link unit 44 be installed between the two parts of the heater. 'base body member 30. Alternatively, for example, it is conceivable that the link unit 44 passes outside the bottom body member. e 30 along it to the heating element 46 of the elastic rail 28.

The wiper blade device 12 has another functional unit 40. This other functional unit 40 is implemented as another heating element 48. This other functional unit 40 is part of the power unit 42. The other unit functional 40 is in one piece with the link unit 44 as a flexible plate as a printed circuit board. The link unit 44 electrically supplies the other functional unit 40. The link unit 44 connects the functional unit 38 and the other functional unit 40 by an electrical circuit in series.

The base body member 30 has two liquid channels 32, 34. The liquid channels 32, 34 provide fluid supply to a liquid distribution unit 36. The liquid channels 32, 34 are recesses in form channels in the base body member 30 of the wiper blade device 12. The wiper blade adapter 16 includes the liquid delivery unit 36. The liquid delivery unit. liquid 36 includes several spray nozzles. The liquid distribution unit 36 is provided to distribute a liquid on the window 22 to clean the window 32, in particular by spraying the liquid. The liquid is wash water.

The other functional unit 40 is located between the two liquid channels 32, 34. The other functional unit 40 is designed in particular to heat the liquid, in particular to a temperature of at least 4 ° C. The two liquid channels 32, 34 are fluidly separated from each other. The base body member 30 has a housing 50. The housing 50 is in the form of a recess of rectangular cross section in the base body member 30. The other functional unit 40 is partially placed in the housing. 50. The other functional unit 40 is glued in the housing 50. Perpendicular to the elastic rail 28, the housing 50 is located between the liquid channels 32, 34.

The wiper blade adapter 16 has a heat receiving element 52. This heat receiving element 52 is a copper plate. The other functional unit 40 is in thermal contact with the heat receiving element 52. The heat receiving element 52 is placed in the housing 50 of the base body element 30. In particular, it is glued there and thus it is in thermal contact with the base body member 30.

The transmission of heat from the other functional unit 40 to the basic body element 30 consists in particular of connecting the other functional unit 40 without leaving a gap with the heat receiving element 52 and this heating element. heat receiving 52, seamlessly connected to the base body member 30.

The schematically shows a method of managing the wiper blade device. In a first process step 54, there is a wiper blade device with at least one wiper blade adapter provided with a wiper arm adapter for connecting a wiper blade. - one-arm windshield wiper; the wiper blade adapter has at least one basic body element which mounts on the wiper blade and / or at least one elastic rail of the wiper blade as well as a link unit electric. In the other method step 54 and in particular in the operating state of the wiper blade device, the power supply unit provides the power supply to the functional unit and the other functional unit.

Claims (10)

Wiper blade device (12) comprising at least one wiper blade adapter (16) with wiper arm adapter (20) for connecting a wiper blade (14) to the wiper arm (18),
the wiper blade adapter (16) comprising at least one base body member (30) for mounting on a wiper blade (24) and / or at least one elastic rail (28) of the wiper blade (14) as well as at least one power supply unit (42) provided with a connection unit (44) for the power supply of at least one functional unit (38) and d 'at least one other functional unit (40). A wiper blade device (12) according to claim 1,
characterized in that
the functional unit (38) made in the form of an elastic rail (28) comprises at least one heating element (46). A wiper blade device (12) according to claim 1 or 2,
characterized in that
the other functional unit (40) is realized as another heating element (48). A wiper blade device (12) according to claim 3,
characterized in that
the other functional unit (40) is part of the power supply unit (42). A wiper blade device (12) according to any one of the preceding claims,
characterized in that
the base body member (30) has at least one housing (50) for at least partially enveloping receiving the other functional unit (40). Wiper blade device (12) according to one of the preceding claims,
characterized in that
the link unit (44) serially connects the functional unit (38) and the other functional unit (40). Wiper blade device (12) according to one of the preceding claims,
characterized in that
the wiper blade adapter (16) has at least one liquid delivery unit (36). A wiper blade device (12) according to claim 7,
characterized in that
the base body member (30) has at least two liquid channels (32, 34) for supplying liquid to the liquid distribution unit (36) and at least one housing (50) for the another functional unit (40) which, in one direction of view, is at least in part between the liquid channels (32, 34). A wiper blade device (12) according to claim 3,
characterized in that
the wiper blade adapter (16) has at least one heat receiving element (52) with which the other functional unit (40) is in thermal contact. Wiper blade (14) comprising at least one wiper blade device (12) according to one of the preceding claims.