Wiper blade device

Abstract

The invention relates to a wiper blade device, comprising at least one wiper blade adapter (12) for being detachably connected to a wiper arm adapter (18) of a wiper arm, wherein the wiper blade adapter (12) comprises at least one interface unit (66) for fluidic, electrical and / or mechanical connection to fluidic, electrical and / or mechanical connection elements (42, 44, 46) of the wiper arm adapter (18). It is proposed that the interface unit (66) comprises at least one interface element (32) for fluidic connection, the interface element having a main extension (68) which is oriented at least substantially parallel to a main extension (70) of a further interface element (34) of the interface unit (34), the further interface element being provided for electrical connection.

Description

Technical Field

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

[0002] A wiper blade device having at least one wiper blade adapter is disclosed, which is used to be detachably connected to a wiper arm adapter of a wiper arm, wherein the wiper blade adapter has at least one interface unit for fluidic, electrical and / or mechanical connection to a fluidic, electrical and / or mechanical connecting element of the wiper arm adapter. Summary of the invention

[0003] The invention relates to a wiper blade device having at least one wiper blade adapter for being detachably connected to a wiper arm adapter of a wiper arm, wherein the wiper blade adapter has at least one interface unit for fluidic, electrical and / or mechanical connection to a fluidic, electrical and / or mechanical connecting element of the wiper arm adapter.

[0004] It is proposed that the interface unit has at least one interface element for fluid connection, which has a main extension which is oriented at least substantially parallel to a main extension of a further interface element of the interface unit which is provided for electrical connection.

[0005] A “wiper blade device” is intended to mean, in particular, at least one component, in particular an assembly, of a wiper blade, in particular a windshield wiper blade and advantageously a vehicle windshield wiper blade. In particular, the wiper blade device can also include an entire wiper blade, in particular an entire windshield wiper blade and advantageously an entire vehicle windshield wiper blade. Preferably, the wiper blade device is intended for use on a vehicle. Preferably, the wiper blade device is intended for cleaning a surface, in particular a windshield on a vehicle. In particular, the wiper blade device is coupled to a vehicle, in particular a wiper arm of a vehicle, for cleaning a vehicle windshield. “Provided” is intended to mean, in particular, specially provided, specially designed and / or specially equipped. “An object is intended for a specific function” is intended to mean, in particular, that the object performs and / or carries out this specific function in at least one use state and / or operating state. In this context, an “operating state” is intended to mean, in particular, a state in which the wiper blade device is ready for a wiping process and / or wiping operation and / or is in wiping operation, in which the wiper strip is guided, in particular, above the vehicle windshield and advantageously rests against the vehicle windshield.

[0006] In this context, a “wiper blade adapter” is intended to be understood to mean, in particular, an adapter which has a contact region with respect to a wiper blade component and is captively connected to the wiper blade component and is provided for forming a coupling region of the wiper blade component on a surface to be cleaned, in particular a vehicle windshield, for coupling to and / or contacting a component, in particular a wiper arm adapter. The wiper blade device can preferably be connected to a vehicle, in particular a wiper arm of a vehicle, via the wiper blade adapter and the wiper arm adapter.

[0007] A "wiper arm" should particularly refer to a unit of the windshield wiper, which is designed to move a wiper blade device, particularly fixed to the wiper arm via the wiper arm adapter, and a wiper blade, particularly comprising the wiper blade device, over a vehicle windshield for cleaning the vehicle windshield. Preferably, the wiper arm is arranged on at least one drive shaft of a wiper drive of a vehicle windshield wiper. In particular, the wiper arm can be driven by the wiper drive to move relative to the vehicle windshield. Preferably, at least one inlet channel, particularly at least two inlet channels, are arranged on the wiper arm, which can be particularly fluidically connected to a wiping water nozzle of the wiper blade. An "inlet channel" should particularly refer to an element having a channel-shaped recess, such as a hose or a pipe, wherein the channel-shaped recess is provided for guiding a fluid, particularly a wiping liquid. Preferably, at least one, particularly exactly one, inlet channel is arranged on the wiper arm. Preferably, at least one power supply line, in particular at least two power supply lines, such as, for example, a cable, is arranged on the wiper arm, which power supply line can be connected to the wiper blade device, in particular via the wiper blade device to a heating element of the wiper blade. The power supply line is provided for supplying energy to at least one electrical component. The power supply line is provided for conducting current at least partially from a current generator or energy storage device, in particular a battery, a generator, for example an alternating current generator (Lichtmaschine) and / or a direct current generator (Dynamo) to / into the wiper blade device. The power supply line and / or the feed channel preferably extend from the end of the wiper arm that can be connected to the drive shaft of the wiper drive of the vehicle to the end of the wiper arm that can be connected to the wiper arm adapter, at least over a large part of the main extension of the wiper arm. The "main extension" of an object is intended to mean the extension that the object has parallel to the longest side length of the smallest cuboid that completely encloses the object. Preferably, the at least one power supply line and / or the feed channel are arranged at least substantially parallel to the wiper arm. “Substantially parallel” here should particularly mean an orientation of a direction relative to a reference direction, particularly in a plane, wherein the direction has a deviation relative to the reference direction of particularly less than 8°, advantageously less than 5° and particularly advantageously less than 2°.

[0008] In this context, a “wiper arm adapter” is intended to be understood to mean, in particular, an adapter which can be connected in a particularly captive manner not only to a wiper arm component but also to the wiper blade adapter and which is provided for connecting a wiper blade device, in particular a wiper blade adapter, to a wiper arm in a particularly captive manner. The wiper blade device can preferably be connected to a vehicle, in particular a wiper arm of a vehicle, via the wiper arm adapter and the wiper blade adapter. The wiper arm adapter has at least two, in particular at least three, connecting elements. The connecting element of the wiper arm adapter is preferably provided for fluid connection to an interface unit of a wiper blade adapter. The further connecting element of the wiper arm adapter is preferably provided for electrical connection to an interface unit of a wiper blade adapter. The further connecting element of the wiper arm adapter is preferably provided for mechanical connection to an interface unit of a wiper blade adapter.

[0009] The connecting element is preferably designed as the end of a hose, a tube or a channel. It is conceivable that at least one sealing element, such as a sealing ring, a gasket, a sealing wire or the like is arranged at at least one, in particular at each material end of the connecting element for guiding the fluid. The connecting element is preferably designed to be connected to the input channel, in particular in one piece or in one piece, in particular via a plug connection. The input channel, in particular the connecting element, is preferably at least partially made of plastic.

[0010] Preferably, the further connecting element is designed as a plug. Preferably, the further connecting element is designed to be connected to the connecting circuit, in particular in one piece or in one piece. Preferably, the power supply line, in particular the further connecting element, is at least partially made of plastic.

[0011] Preferably, the additional connecting element is designed as a rod, a bolt, a nail, a rivet, a pin or a similar element. Preferably, the additional connecting element is designed to be integrally connected to the wiper arm adapter, in particular integrally. Preferably, the wiper arm adapter, in particular the additional connecting element, is made of a metallic material.

[0012] The interface unit of the wiper blade adapter comprises at least two, in particular at least three interface elements. Preferably, the interface unit comprises at least one interface element, a further interface element and an additional interface element. The interface element is configured to be connected to a connecting element of a wiper arm adapter.

[0013] At least one interface element of the interface unit is preferably configured for fluid connection with a connecting element of a wiper arm adapter, in particular for fluid connection with an input channel via the connecting element. The interface element is preferably configured as a water-conducting connection between two water-conducting elements, such as a plug connection between two pipes, channels or hoses. The interface element is preferably configured for establishing at least one, in particular exactly one, fluid connection. It is conceivable that the interface element is configured for establishing a plurality of different fluid connections. The interface element is preferably configured as a channel-shaped gap in at least one wiper blade adapter. The interface element preferably configures at least one, in particular exactly one, gap, which is particularly used for plug connection with a connecting element of a wiper blade adapter. The interface element preferably configures a channel inside the wiper blade adapter. The interface element preferably configures a fluid connection with the adapter channel, in particular a T-shaped connection, at the end facing away from the gap. It is conceivable that the interface element is configured in one piece, in particular as a single piece, with the adapter channel.

[0014] The adapter channel preferably extends over the entire main extension of the wiper blade adapter. The adapter channel preferably constructs two raised channels, which are particularly arranged at the ends of the main extension of the wiper blade adapter. Preferably, the raised channels are provided for connecting respectively with fluid channels of the wiper blade arranged in the wiper blade. Preferably, the fluid channels of the wiper blade are arranged together on a spoiler element of an air guide unit of the wiper blade. "Wiping liquid channel or adapter channel" should particularly refer to a channel-shaped recess, particularly in at least one air guide unit or the wiper blade adapter, wherein the channel-shaped recess is provided for guiding a fluid, particularly a wiping liquid. "Channel-shaped recess" should particularly refer to a material-limited recess, which is provided for guiding a fluid, particularly a wiping liquid, in at least one operating state and / or assembled state. The wiping liquid channel is provided in at least one operating state and / or assembled state for "guiding a fluid", which should in particular mean that the wiping liquid channel is provided in the operating state and / or assembled state for conveying a fluid reaching one end of the wiping liquid channel from one of the ends of the wiping liquid channel to the end of the wiping liquid channel opposite to one of the ends of the channel, wherein the fluid in particular flows through the wiping liquid channel. Preferably, at least one sealing element, such as a sealing ring, a gasket, a sealing wire or the like, is arranged on at least one, in particular each material end of the interface element for guiding the fluid. Preferably, the connection, in particular the plug connection, of the interface element of the wiper blade adapter with the connecting element of the wiper arm adapter forms a passage therein, which enables the connection of the guided fluid. Preferably, the wiping liquid channel has an at least substantially circular cross-section. Preferably, the wiping liquid channel is defined by an air guide unit. As an alternative, it is conceivable that the wiping liquid channel is constructed, for example, by a single-component or multi-component elastic hose and / or a single-component or multi-component tube in the gap of the air guide unit. It is conceivable that the air guide unit has at least two, in particular exactly two, wiping liquid channels. The at least one wiping liquid channel has, for example, at least one output element. An "output element" should refer to an element that is configured to output a fluid. The output element can be constructed in the form of a nozzle and / or an opening and can be arranged in particular on an end cap of a wiper blade, a wiper strip, in particular a wiper lip and / or an elastic rail.

[0015] Preferably, at least the further interface element is configured to be electrically connected to the further connection element, in particular to be electrically connected to the power supply line via the further connection element. Preferably, the further interface element is configured as a conductive connection between two electrical conductors, for example a plug connection between two cables. Preferably, the further interface element is configured to establish at least two, in particular exactly two electrical connections. It is conceivable that the further interface element is configured to establish more than two, such as, for example, three, four, etc., different electrical connections, in particular a double electrical connection. The further interface element preferably configures a channel-shaped recess in at least one wiper blade adapter, which is used to receive a connection element, such as, for example, a plug. The further interface element preferably configures at least two, in particular exactly two, recesses, which are particularly used to be plug-connected to the further connection element of the wiper arm adapter. Preferably, the plug connection of the further interface element to the further connection element configures a passage in its interior, which passage enables at least one conductive connection.

[0016] Preferably, at least one additional interface element is provided for mechanical connection to an additional connecting element, in particular to a wiper arm adapter. Preferably, the additional interface element is designed as a mechanical connection, such as, for example, a plug connection for an object, such as a rod, a bolt, a nail, a pin, a rivet, etc. Preferably, the additional interface element forms a recess for connection to an additional connecting element of the wiper arm adapter, in particular a plug connection, in particular for receiving an additional connecting element of the wiper arm adapter. Preferably, the additional interface element is designed for a pivotable connection to an additional connecting element of the wiper arm adapter.

[0017] Preferably, the wiper blade adapter is constructed in one piece, in particular in one piece, with the interface unit. "In one piece" should in particular mean, for example, a connection that is at least materially compatible, for example, by a welding process, an adhesive process, an injection process, and / or other processes that appear to be meaningful to a person skilled in the art, and / or an advantageous integral formation, such as, for example, by manufacturing from a casting and / or by manufacturing by a single-component or multi-component injection molding method and advantageously from a single blank. "In one piece" should in particular mean forming in one piece. Preferably, this one piece is manufactured from a single blank, a mass and / or a casting, particularly preferably by an injection molding method, in particular by a single-component and / or multi-component injection molding method. Preferably, the wiper blade adapter is constructed from at least one plastic. Preferably, the interface unit is constructed from at least one plastic. It is conceivable that the interface unit is constructed separately, in particular different from the wiper blade adapter, in particular from another material and / or another material combination. It is also conceivable that the wiper blade adapter has a coupling region for receiving a separately constructed interface unit.

[0018] Preferably, the main extension of the connection element for the fluid connection and the main extension of the connection element for the electrical connection are arranged perpendicularly to the main extension of the wiper blade adapter, in particular perpendicularly to the wiping direction. "Wiping direction" is intended to mean a direction which, when the wiper blade device is completely supported on a surface, is perpendicular to the main extension direction of the wiper blade device and perpendicular to the surface normal of the support surface. It is conceivable that the main extension of the connection element for the fluid connection and the main extension of the connection element for the electrical connection are arranged parallel to the wiping direction.

[0019] By means of the design of the wiper blade device according to the invention, an advantageous space-saving arrangement and / or orientation of the interface element can be achieved. In particular, an advantageously cost-effective arrangement and / or orientation of the interface element can be achieved. In particular, an advantageously cost-effective wiper blade device can be realized. Parallel connecting elements and / or power supply lines for coupling to an interface can be advantageously realized, the interface being in particular embodied as a coupled structure in order to achieve an advantageous stability of the connecting elements and / or power supply lines. An advantageously intuitive assembly method can be realized. An advantageously time-saving assembly of wiper blade devices, in particular with different interface elements, can be realized. It can be realized that two connections, such as, for example, an electrical connection and a fluid connection, are completed almost simultaneously during assembly.

[0020] It is further proposed that the interface unit has at least one additional interface element for mechanical connection to a wiper arm adapter, wherein the main extension of the additional interface element extends transversely, in particular at least substantially perpendicularly, to the main extension of the interface element and the further interface element. Preferably, the main extension of the additional interface element is arranged perpendicularly to the main extension of the wiper blade adapter, in particular parallel to the wiping direction. Preferably, the main extension of the additional interface element is arranged perpendicularly to the main extension of the wiper blade adapter. The expression "substantially perpendicular" here should particularly define the orientation of a direction relative to a reference direction, wherein the direction and the reference direction, in particular viewed in a plane, enclose an angle of 90° and the angle has a maximum deviation of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°. A mechanical coupling of the wiper blade adapter to the wiper arm adapter can be achieved, which is arranged in particular perpendicularly to the fluidic and electrical connection for an advantageous stability of the connection of the wiper arm adapter to the wiper blade adapter.

[0021] It is further proposed that the wiper blade adapter has a wiper strip receptacle, wherein the interface unit has an interface region, at least the interface element and the further interface element are arranged in the interface region and the interface region is arranged on the outer side of the wiper blade adapter facing away from the wiper strip receptacle. Preferably, the interface region is designed as a part of the outer side of the wiper blade adapter. Preferably, the interface region comprises the outer side of the wiper blade adapter from one end of the main extension of the wiper blade adapter to a maximum of 40%, preferably a maximum of 30%, particularly preferably a maximum of 25% of the main extension of the wiper blade adapter. Preferably, the outer side of the wiper blade adapter is arranged parallel to the wiper strip receptacle, in which the interface region is arranged. Preferably, the interface region comprises an interface sub-region which has a smaller distance to the wiper strip receptacle than a further interface sub-region of the interface region. Preferably, the interface element is arranged in the interface sub-region. Preferably, a further interface element is arranged in the further interface sub-region. In this context, a "wiper strip receptacle" is intended to be understood to mean, in particular, a channel or groove which is provided for at least partially receiving a wiper strip. A "wiper strip" is intended to be understood to mean, in particular, a unit made of at least one elastic material which is provided for moving in contact over a surface to be cleaned, in particular a glass surface, preferably a vehicle window, in order to clean the surface. Preferably, the wiper strip has a wiper base body and a wiper lip. Preferably, the wiper strip receptacle is provided to substantially surround the wiper strip at least within the region of the main extension of the wiper blade adapter. Preferably, the interface element is arranged in the region of the interface part in the wiping direction towards the end of the wiper blade adapter. Preferably, the further interface element is arranged in the region of the further interface part in the wiping direction in the middle region of the wiper blade adapter. An advantageous centralized arrangement of the interface elements, in particular the interface element and the further interface element, is possible. In particular, a short connection path is advantageously possible. An advantageous space-saving assembly is possible in the region of the interface part. Advantageously, simultaneous mounting of the connection element and the further connection element can be achieved in the connection subregion.

[0022] Furthermore, it is proposed that the interface element and the further interface element are arranged in the end region of the main extension of the wiper blade adapter. Preferably, the interface and the further interface are arranged in the interface subregion and the further interface subregion towards the end of the main extension of the wiper blade adapter. This allows an advantageous arrangement of the interface element and the further interface element remote from the additional interface element, whereby in particular the forces for establishing the connection at the interface element and the further interface element can be kept low.

[0023] Furthermore, a wiper system is proposed, wherein the wiper system comprises a wiper blade device and a wiper arm, which can be connected to the wiper blade device. In particular, the wiper system comprises at least one wiper blade, which comprises the wiper blade device or is at least partially formed by the wiper blade device. Preferably, the wiper arm is provided for connection to a wiper arm adapter, in particular by means of a plug connection. Preferably, the wiper arm is arranged on a vehicle, in particular on a windshield of a vehicle. Preferably, the wiper arm is formed of metal. It can be achieved that the wiper blade device can be advantageously pivoted by the wiper arm in order to establish a connection between the interface element and the further interface element, in particular by a parallel arrangement of the interface element and the further interface element. Advantageously, not only the wiper arm can be at least partially pivoted relative to the vehicle, but also the wiper blade device can be at least partially pivoted relative to the wiper arm, in particular for advantageously mounting the wiper blade device on the wiper arm and establishing a fluid, mechanical and electrical connection.

[0024] It is proposed that the wiper system has at least one inlet channel arranged on the wiper arm and at least one wiper arm adapter, the wiper arm adapter comprising at least one additional connecting element for mechanically pivoting with an additional interface element of an interface unit of the wiper blade adapter, and the wiper arm adapter having at least one mechanical blocking element for mechanically blocking a pivoting of the wiper blade adapter relative to the wiper arm adapter, wherein at least one opening is arranged on the blocking element, the opening being provided for passing the inlet channel. Preferably, the blocking element is plate-shaped. Preferably, the blocking element is integrally, in particular integrally, formed with the wiper arm adapter. Preferably, the blocking element has a main extension parallel to the wiping direction. Preferably, the opening is configured as a recess, in particular as a recess having a circular outer contour. Preferably, the opening on the blocking element is arranged at an end of the material of the blocking element along the wiping direction. Preferably, the connecting element is configured as a fluid connecting element. Preferably, the connecting element is at least partially arranged in the opening on the blocking element. It is conceivable that the connecting element is constructed integrally with the blocking element. It is also conceivable that the connecting element is fixed to the blocking element, for example, by means of an adhesive connection, a weld, a clamping connection, such as a cable tie connection or the like. Preferably, the inlet channel is arranged parallel to the wiper arm adapter up to the connecting element. Preferably, the connecting element is constructed with two 90° angles for further guiding the liquid along the wiper arm adapter and along the blocking element through the opening in the blocking element. The mechanical connection of the wiper arm adapter to the wiper blade adapter can be advantageously used for guiding the fluid. In particular, the stable mechanical connection can be advantageously used to increase the stability of the fluid connection.

[0025] In addition, it is proposed that the wiper arm adapter has at least one cover, on which at least one further connecting element of the wiper arm adapter is arranged for coupling with a further interface element of the interface unit. Preferably, the further connecting element is designed as an electrical connecting element. Preferably, the further connecting element is connected to the cover. Preferably, the further connecting element is connected to the cover on the inner side of the cover. Preferably, the further connecting element is connected to the cover in a manner that can be detached without tools. It is conceivable that the further connecting element is constructed in one piece, in particular in one piece, with the cover. It is conceivable that the power supply line is at least partially fixed to the cover. It is conceivable that the power supply line is fixed to the cover in a manner that can be detached without tools and / or to the further connecting element. The cover is particularly provided for covering the wiper arm adapter and the wiper blade adapter. Advantageously, a protected connection, in particular a mechanical, fluidic and / or electrical connection, of the wiper arm adapter to the wiper blade adapter can be achieved. The connecting path can advantageously be designed to be guided by the cover.

[0026] It is further proposed that the at least one cover is connected to a further connecting element in a manner that can be released without tools. Preferably, the cover is constructed from a further connecting element in a manner that can be released without tools, in order to be replaced as required, for example for aesthetic reasons. It is conceivable that the at least one cover is constructed from a wiper arm adapter and a wiper blade adapter in a manner that can be released without tools. Preferably, the cover can be replaced in any static state of the wiper system, in particular in the assembled state. An advantageous assembly time of the cover can be achieved. A cover can be constructed that can advantageously be mounted in an exchangeable manner. In particular, a cover can be constructed that can advantageously release the electrical connection without tools. A cover can be constructed that is advantageously constructed without fixing elements.

[0027] Furthermore, a method for assembling a wiper system is proposed, wherein in at least one method step, the connection of the connecting element of the wiper blade adapter to the connecting element of the wiper arm adapter and the connection of the further connecting element of the wiper blade adapter to the further connecting element of the wiper arm adapter are respectively established at least substantially simultaneously. In at least one method step, the heating element is preferably fixed to the spring rail. In at least one method step, the spring rail with the heating element is preferably pushed into a spring rail receptacle, in particular a spring rail channel, of the wiper blade adapter. In at least one method step, the wiper strip is preferably pushed into a wiper strip receptacle of the wiper blade adapter. In at least one method step, the air guide unit and the end cap are preferably plugged onto and connected to the wiper strip and the spring rail. In at least one method step, the air guide unit is preferably plugged onto a raised channel on the wiper blade adapter for fluid connection. In at least one method step, the wiper arm adapter is preferably connected to the wiper blade adapter. In at least one method step, the additional interface element is preferably connected to the additional connecting element. In at least one method step, the interface element is preferably connected to the connecting element by pivoting and the further interface element is simultaneously connected to the further connecting element. In particular, favorable connection times can be achieved for electrical and fluid connections after the mechanical connection.

[0028] The wiper blade device according to the invention, the wiper system according to the invention and / or the method according to the invention are not to be restricted to the above-described applications and embodiments. In particular, the wiper blade device according to the invention, the wiper system according to the invention and / or the method according to the invention can have a number of individual elements, components and units and method steps that differ from the number mentioned at this point in order to perform the functionality described at this point. Furthermore, for the numerical ranges specified in this disclosure, the values ​​within the mentioned limits are also to be regarded as disclosed and can be used arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Further advantages are 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 a large number of features in combination. A person skilled in the art will also appropriately consider these features individually and summarize them into other meaningful combinations. Among them:

[0030] Figure 1 A schematic diagram shows a wiper blade device according to the invention and a wiper arm adapter connected to the wiper blade device according to the invention.

[0031] Figure 2 A wiper blade device according to the invention is shown in a schematic exploded view.

[0032] Figure 3 A schematic diagram shows a wiper blade device according to the invention and a wind guide unit, a spring rail, a heating element and a wiper strip connected to the wiper blade device according to the invention,

[0033] Figure 4 A schematic diagram shows a wiper blade device according to the invention having an interface unit according to the invention and a wiper arm adapter having a connecting element,

[0034] 5 shows in a schematic diagram a wiper blade device according to the invention with an interface unit according to the invention and a wiper arm adapter with a connecting element in a partially connected state ( FIG. 5 a ) and in a fully connected state ( FIG. 5 b ), and

[0035] Figure 6 The sequence of the method for assembling a windshield wiper system according to the invention is shown in a schematic diagram. DETAILED DESCRIPTION

[0036] Figure 1 A wiper blade device 10 is shown. The wiper blade device 10 is designed in particular as at least one wiper blade 14 . The wiper blade device 10 comprises a wiper blade adapter 12 . Figure 1 In particular, a wiper blade device 10 is shown which has at least one wiper blade adapter 12 for detachable connection to a wiper arm adapter 18 of a wiper arm. Figure 1 A wiper system 16 is shown having at least one wiper blade device 10, which has at least one wiper arm adapter 18, which can be connected to the wiper blade device 10. The wiper system 16 comprises a wiper blade device 10 and a wiper arm (not shown) which can be connected to the wiper blade device 10. The wiper system 16 comprises at least one supply channel 38.

[0037] The wiper blade device 10 comprises a wiper strip 20 . The wiper blade device 10 comprises an air guide unit 30 . The wiper blade device 10 comprises two end caps 28 . The wiper blade device 10 comprises a spring rail 22 .

[0038] The air guide unit 30 is provided for deflecting the inflowing air or the traveling wind acting on the wiper blade device 10 and / or for pressing the wiper blade 14 against the surface to be wiped, in particular the vehicle window. The air guide unit 30 is in particular constructed to be different from the elastic rail 22, the wiper strip 20, and the wiper arm adapter 18. The air guide unit 30 is at least partially constructed of plastic. In the assembled state, the air guide unit 30 extends over at least a part, preferably at least a majority, of the extension of the wiper blade device 10, in particular the wiper blade 14, along the main extension direction of the elastic rail 22. The air guide unit 30 is constructed interrupted in the middle area for receiving the wiper blade adapter 12. The air guide unit 30 includes two air guide subunits. Each air guide subunit includes at least one wiping liquid channel 62.

[0039] The end cap 28 is provided for fixing the air guide unit 30 to the wiper strip 20. The end cap 28 has an outer contour substantially similar to that of the air guide unit 30. The end cap 28 closes the wiper blade device 10 in an end region 54 of the main extension of the wiper blade 14. The end caps 28 each have at least one output element 26 for outputting wiping liquid. The end cap 28 has at least one fluid channel for fluidically connecting the output element 26 to a wiping liquid channel 62 of the air guide unit 30, in particular of the air guide subunit.

[0040] The spring rail 22 is flexibly designed and is provided in particular for applying a pressing force when the wiper blade 14 is pressed against the windshield to be cleaned. In the unloaded state, the spring rail 22 has at least substantially the shape of a bent rod, in particular the shape of a flattened bent rod. It is conceivable that the wiper blade device 10 has a plurality of spring rails 22. The spring rail 22 is made of metal, in particular spring steel.

[0041] In order to connect the wiper blade 14 to the wiper arm, at least one wiper arm adapter 18 is arranged on the wiper blade adapter 12. The wiper blade adapter 12 is provided for connecting the wiper blade 14 to a wiper arm adapter 18, in particular a wiper arm. An inlet channel 38 and two power supply lines 40 are arranged on the wiper arm adapter 18, in particular the wiper arm. The wiper blade device 10 is connected to the wiper arm adapter 18. The wiper blade device 10 is connected to the wiper arm via the wiper arm adapter 18 and the wiper blade adapter 12. It is conceivable that the wiper blade device 10 has at least one wiper arm adapter 18. It is also conceivable that the wiper arm adapter 18 is formed integrally with the wiper arm, in particular at least a part of the wiper arm. The wiper arm adapter 18, in particular the wiper arm, is formed of metal.

[0042] Figure 21 shows various components of a wiper blade device 10. In particular, the wiper blade device 10 has a heating element 24. It is shown here that the wiper blade adapter 12 has a wiper strip receptacle 74 and a spring rail receptacle 48. A fluid channel is arranged on the wiper blade adapter 12. The fluid channel forms two raised channels 60. The raised channels 60 are provided for plug connection with a wiping fluid channel 62 of the air guide unit 30 (see Figure 3 The wiper blade adapter 12 has at least one interface unit 66 . The interface unit 66 is provided for a fluidic, electrical and / or mechanical connection to fluidic, electrical and / or mechanical connecting elements 42 , 44 , 46 of the wiper arm adapter 18 .

[0043] Figure 3 and Figure 4 It is shown that the interface unit 66 has at least one interface element 32 for fluid connection. The interface element 32 is provided for fluidly connecting the supply channel 38, in particular the connecting element 42, to the wiper blade adapter 12. The interface unit 66 has at least one further interface element 34, which is provided for electrical connection. The further interface element 34 is provided for electrically connecting the supply line 40, in particular the further connecting element 44, to the wiper blade adapter 12, in particular the heating element 24.

[0044] The interface element 32 has a main extension 68 (see Figure 4 ). The further interface element 34 has a main extension 70. The interface element 32 has a main extension 68, which is oriented at least substantially parallel to the main extension 70 of the further interface element 34 of the interface unit 66, which is provided for electrical connection. The interface unit 66 has at least one additional interface element 36. The additional interface element 36 is provided for mechanical connection to the wiper arm adapter 18. The main extension 72 of the additional interface element 36 extends transversely, in particular at least substantially perpendicularly, to the main extensions 68, 70 of the interface element 32 and the further interface element 34. The interface unit 66 is constructed integrally with the wiper blade adapter 12. In particular, the interface element 32 is constructed as a channel-shaped recess for receiving a hose or a plug in the wiper blade adapter 12. The further interface element 34 is constructed in particular as two channel-shaped recesses for receiving one or more cables or plugs in or on the wiper blade adapter 12. In particular, the additional connecting element 36 is designed as a channel-like recess which serves to receive a screw or a pin or the like in the wiper blade adapter 12 .

[0045] Figure 3In particular, it is shown that the interface unit 66 has an interface region 76. At least the interface element 32 and the further interface element 34 are arranged in the interface region 76. The interface region 76 is arranged on the outer side of the wiper blade adapter 12 facing away from the wiper strip receptacle 74. The interface element 32 and the further interface element 34 are arranged in end regions of the main extension of the wiper blade adapter 12. The interface element 32 is arranged in an end region of the extension of the wiper blade adapter 12 along the wiping direction 50, in particular in the interface region 76. It is conceivable that the interface element 32 is arranged in an end region opposite to the end region of the extension of the wiper blade adapter 12 along the wiping direction 50, in particular in the interface region 76. The further interface element 34 is arranged in a central region of the extension of the wiper blade adapter 12 along the wiping directions 50, 52.

[0046] Figure 4 It is shown that the wiper system 16 comprises at least one wiper arm adapter 18. The wiper arm adapter 18 comprises at least one blocking element 56. At least one opening 64 is arranged on the blocking element 56. The opening 64 is provided for passing an inlet channel 38, in particular a connecting element 42. The end of the inlet channel 38 is configured as a connecting element 42. The inlet channel 38 is configured in the surroundings of the wiper arm adapter 18 by a hose or a curved and / or partially flexible pipe. The end of the inlet channel 38 is guided through the opening 64 of the blocking element 56.

[0047] Figure 4 In particular, it is shown that the wiper arm adapter 18 has at least one cap 58. The cap 58 is made of plastic. Arranged on the cap 58 is a further connecting element 44 of the wiper arm adapter 18, which serves for coupling to a further connecting element 34 of the connecting unit 66 (see FIGS. 5 a and 5 b). The at least one cap 58 is connected to the further connecting element 44 in a tool-free detachable manner. It is conceivable that the cap 58 can be designed in different colors and / or in different patterns.

[0048] The wiper arm adapter 18 comprises at least one additional connecting element 46 for a mechanically pivotable connection to an additional connecting element 36 of an connecting unit 66 of the wiper blade adapter 12 (see Figure 4). The additional connecting element 46 is designed as a pin, in particular a metal pin. The additional connecting element 46 is fixedly connected to the wiper arm adapter 18. The wiper arm adapter 18 has at least one mechanical blocking element 56, which is used to mechanically block a pivoting of the wiper blade adapter 12 relative to the wiper arm adapter 18. The additional connecting element 46 is provided for plug connection with the additional interface element 36. The additional connecting element 46 enables the wiper arm adapter 18, in particular the wiper arm, to pivot relative to the wiper blade adapter 12 when plug connection is made with the additional interface element 36, in particular until the blocking element 56 blocks the pivoting (see FIGS. 5a and 5b). In a state in which the blocking element 56 blocks a pivoting of the wiper arm adapter 18 relative to the wiper blade adapter 12, the interface element 32 and the connecting element 42 as well as the further interface element 34 and the further connecting element 44 form a plug connection, in particular parallel.

[0049] FIG. 5 a shows in particular the inlet channel 38 which is arranged on the wiper arm. The inlet channel 38 is designed as a partially reinforced structure in the vicinity of the blocking element 56 . It is conceivable that the inlet channel 38 is at least partially fixed to the blocking element 56 .

[0050] 5a and 5b show that the further connecting element 44 is designed, in particular, in one piece or in one piece, connected to the cover 58. The further connecting element 44 is made of plastic. It is conceivable that the cover 58 is designed in different color palettes.

[0051] Figure 6 A method for assembling a wiper system 16 is shown.

[0052] In at least one method step, in particular in the preparatory step 80, the heating element 24 is fixed to or on the spring rail 22. It is conceivable to fix the heating element 24 to the spring rail 22, in particular to a side surface of the spring rail 22, in particular to one of the two sides with the largest area, by means of an adhesive connection. It is conceivable to fix two heating elements 24, respectively, to the two sides of the spring rail 22 with the largest area.

[0053] In at least one method step, in particular in a wiper blade manufacturing step 82, the spring rail 22 together with the heating element 24 is pushed into the spring rail receptacle 48, in particular into the spring rail channel, of the wiper blade adapter 12. In particular, the spring rail 22 is pushed into the spring rail receptacle 48 of the wiper blade adapter 12 up to the middle of the main extension of the spring rail 22. In at least one wiper blade manufacturing step 82, the wiper strip 20 is pushed into the wiper strip receptacle 74 of the wiper blade adapter 12, in particular up to the middle of the main extension of the wiper strip 20.

[0054] In at least one wiper blade production step 82 , the air guiding unit 30 and the end cap 28 are plugged onto the wiper strip 20 and the spring rail 22 and connected.

[0055] In at least one wiper blade manufacturing step 82, the air guiding unit 30 is plugged onto the raised channel 60 on the wiper blade adapter 12 for fluid connection. In particular, in at least one wiper blade manufacturing step 82, the end cap 28 is plugged onto the air guiding subunit of the air guiding unit 30 for fluid connection of the output element 26 to the air guiding unit 30.

[0056] In at least one method step, in particular a wiper arm connecting step 84 , the wiper arm adapter 18 is connected to the wiper blade adapter 12 .

[0057] In at least one method step, in particular a wiper arm connecting step 84 , the additional connecting element 36 is connected to the additional connecting element 46 .

[0058] In at least one method step, in particular the pivoting step 86 , the wiper arm adapter 18 is pivoted relative to the wiper blade adapter 12 .

[0059] In at least one pivoting step 86, the wiper arm adapter 18 is pivoted relative to the wiper blade adapter 12 until the blocking element 56 blocks the pivoting of the wiper arm adapter 18 relative to the wiper blade adapter 12. In at least one method step, in particular the pivoting step 86, the connecting element 32 is connected to the connecting element 42 by pivoting and the further connecting element 34 is connected to the further connecting element 44 substantially simultaneously. In at least one method step, the connection of the connecting element 32 of the wiper blade adapter 12 to the connecting element 42 of the wiper arm adapter 18 and the connection of the further connecting element 34 of the wiper blade adapter 12 to the further connecting element 44 of the wiper arm adapter 18 are respectively established at least substantially simultaneously. In particular, it is conceivable that in at least one pivoting step 86, mechanical, fluidic and electrical connections can be realized simultaneously.

Claims

1. A wiper system comprising a wiper blade device (10) and a wiper arm connectable to the wiper blade device (10), wherein the wiper blade device comprises at least one wiper blade adapter (12) for being detachably connected to a wiper arm adapter (18) of the wiper arm, wherein the wiper blade adapter (12) comprises at least one interface unit (66) for fluidic, electrical and / or mechanical connection to a fluidic, electrical and / or mechanical connection element (42, 44, 46) of the wiper arm adapter (18), wherein: The interface unit (66) has at least one interface element (32) for fluid connection, the interface element having a main extension (68) which is oriented at least substantially parallel to a main extension (70) of a further interface element (34) of the interface unit (66), the further interface element being provided for electrical connection, characterized in that at least one input channel (38) is arranged on the wiper arm and in that at least one wiper arm adapter (18) comprises at least one additional connecting element (46) for mechanically pivotably connecting to an additional interface element (36) of the interface unit (66) of a wiper blade adapter (12), and the wiper arm adapter has at least one mechanical blocking element (56) for mechanically blocking a pivoting of the wiper blade adapter (12) relative to the wiper arm adapter (18), wherein at least one opening (64) is arranged on the blocking element (56) and is provided for passing the input channel (38).

2. The wiper system according to claim 1, characterized in that: The interface unit (66) has at least one additional interface element (36) for mechanical connection to the wiper arm adapter (18), wherein a main extension (72) of the additional interface element (36) extends at least substantially perpendicularly to a main extension (68, 70) of the interface element (32) and of a further interface element (34).

3. The wiper system according to claim 1 or 2, characterized in that: The wiper blade adapter (12) has a wiper strip receptacle (74), wherein the interface unit (66) has an interface region (76), at least the interface element (32) and the further interface element (34) are arranged in the interface region, and the interface region is arranged on an outer side of the wiper blade adapter (12) facing away from the wiper strip receptacle (74).

4. The wiper system according to claim 1 or 2, characterized in that: The connecting element (32) and the further connecting element (34) are arranged in an end region (78) of a main extension of the wiper blade adapter (12).

5. The wiper system according to claim 1, characterized in that: The wiper arm adapter (18) has at least one cover (58), on which at least one further connecting element (44) of the wiper arm adapter (18) is arranged for coupling to a further connecting element (34) of the connecting unit (66).

6. The wiper system according to claim 5, characterized in that: The at least one cover (58) is connected to the further connecting element (44) in a tool-free detachable manner.

7. Method for assembling a windshield wiper system (16) according to any one of claims 1 to 6, characterized in that In at least one method step, a connection between an interface element (32) of the wiper blade adapter (12) and a connecting element (42) of the wiper arm adapter (18) is established at least substantially simultaneously, and a connection between a further interface element (34) of the wiper blade adapter (12) and a further connecting element (44) of the wiper arm adapter (18) is established.

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