CN111976656A

CN111976656A - Wiper blade device

Info

Publication number: CN111976656A
Application number: CN202010441033.5A
Authority: CN
Inventors: H.德庞特; S.特鲁延斯
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2019-05-23
Filing date: 2020-05-22
Publication date: 2020-11-24
Also published as: FR3096325A1; FR3096325B1; DE102019207610A1

Abstract

The invention relates to a wiper blade device having at least one wiper blade adapter (12) for releasable connection to a wiper arm adapter (18) of a wiper arm, wherein the wiper blade adapter (12) has at least one interface unit (66) for fluid, electrical and/or mechanical connection to a fluid, electrical and/or mechanical connecting element (42, 44, 46) of the wiper arm adapter (18). It is proposed that the interface unit (66) has at least one interface element (32) for making a fluid connection, which has a main extent (68) that is oriented at least substantially parallel to a main extent (70) of a further interface element (34) of the interface unit (34), which is provided for making an electrical connection.

Description

Wiper blade device

Technical Field

The present invention relates to a wiper blade device.

Background

A wiper blade device having at least one wiper blade adapter for releasable connection to a wiper arm adapter of a wiper arm has already been disclosed, wherein the wiper blade adapter has at least one interface unit for fluid, electrical and/or mechanical connection to a fluid, electrical and/or mechanical connecting element of the wiper arm adapter.

Disclosure of Invention

The invention relates to a wiper blade device having at least one wiper blade adapter for releasable connection to a wiper arm adapter of a wiper arm, wherein the wiper blade adapter has at least one interface unit for fluid, electrical and/or mechanical connection to a fluid, electrical and/or mechanical connecting element of the wiper arm adapter.

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

A "wiper blade device" is intended to mean in particular at least one component, in particular a component, of a wiper blade, in particular of a windshield wiper blade, and advantageously of a vehicle windshield wiper blade. In particular, the wiper blade device can also comprise a complete wiper blade, in particular a complete windshield wiper blade, and advantageously a complete vehicle windshield wiper blade. Preferably, the wiper blade device is provided for use on a vehicle. Preferably, the wiper blade device is provided for cleaning a surface, in particular a window pane 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 window. "provided" is intended to mean, in particular, specially set up, specially designed and/or specially equipped. The expression "an object is provided for a specific function" is intended to mean, in particular, that the object fulfills and/or performs this specific function in at least one operating state and/or operating state. In this context, an "operating state" is to be understood to mean, in particular, a state in which the wiper blade device is ready for a wiping operation and/or is in a wiping operation in which the wiper strip is guided, in particular, above the vehicle window and in this case advantageously rests against the vehicle window.

A "wiper blade adapter" is to be understood in this respect to mean, in particular, an adapter which has a contact region with respect to a wiper blade component and is connected thereto in a manner that is not detachable and is provided for forming a coupling region of the wiper blade component for coupling and/or contacting a component, in particular a wiper arm adapter, on a surface to be cleaned, in particular a vehicle window. The wiper blade device can preferably be connected to a wiper arm of a vehicle, in particular a motor vehicle, by means of the wiper blade adapter and the wiper arm adapter.

A "wiper arm" is to be understood to mean, in particular, a unit of the windshield wiper which is provided for moving a wiper blade device, which is fastened to the wiper arm, in particular by means of the wiper arm adapter, and a wiper blade, which comprises the wiper blade device, above a vehicle window, in order to clean the vehicle window. Preferably, the wiper arm is arranged on at least one drive shaft of a wiper drive of a windshield wiper of a vehicle. In particular, the wiper arm can be driven by the wiper drive to perform a movement relative to the vehicle window. Preferably, at least one supply channel, in particular at least two supply channels, is arranged on the wiper arm, which can be connected in particular fluidically to the wiping water nozzle of the wiper blade. The term "feed channel" is intended to mean, in particular, an element, such as, for example, a hose or a pipe, having a channel-like recess, which is provided for conducting a fluid, in particular a wiping liquid. Preferably, at least one, in particular exactly one, feed channel is arranged on the wiper arm. Preferably, at least one supply line, in particular at least two supply lines, such as, for example, a cable, is arranged on the wiper arm, which 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 the energy supply of at least one electrical component. The supply line is provided for conducting an electric current at least partially from a current generator or energy store, in particular a battery, a generator, for example an alternator (Lichtmaschine) and/or a direct current generator (Dynamo), to/into the wiper blade device. The supply line and/or the supply channel preferably extend at least over a large part of the main extension of the wiper arm from the end of the wiper arm that can be connected to the drive shaft of the wiper drive of the vehicle up to the end of the wiper arm that can be connected to the wiper arm adapter. The "main extension" of an object shall mean the extension of said object parallel to the longest side of the smallest cuboid completely enclosing the object. Preferably, the at least one supply line and/or the supply channel is arranged at least substantially parallel to the wiper arm. "substantially parallel" is intended here to mean, in particular, an orientation of a direction relative to a reference direction, in particular in a plane, the direction having, in particular, a deviation of less than 8 °, advantageously less than 5 °, and particularly advantageously less than 2 °, relative to the reference direction.

In this context, a "wiper arm adapter" is to be understood to mean, in particular, an adapter which can be connected, in particular, in a non-releasable manner, to a wiper arm component and which can be connected, in particular, in a non-releasable manner, to the wiper blade adapter and which is provided for connecting, in particular in a non-releasable manner, a wiper blade device, in particular a wiper blade adapter, to a wiper arm. The wiper blade device can preferably be connected to a vehicle, in particular a wiper arm of a vehicle, by means of 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 a fluid connection to an interface unit of the wiper blade adapter. The further connecting element of the wiper arm adapter is preferably provided for electrical connection to an interface unit of the wiper blade adapter. The additional connecting element of the wiper arm adapter is preferably provided for mechanical connection to an interface unit of the wiper blade adapter.

Preferably, the connecting element is configured as an end of a hose, tube or channel. It is conceivable that at least one sealing element, such as a sealing ring, a gasket, a sealing line or the like, is arranged on at least one, in particular each material end of the connecting element for guiding the fluid. The connecting element is preferably designed in particular in one piece or integrally connected to the inlet channel, in particular by a plug connection. Preferably, the supply channel, in particular the connecting element, is at least partially made of plastic.

Preferably, the further connecting element is designed as a plug. The further connecting element is preferably formed in particular integrally or integrally connected to the connecting circuit. Preferably, the power supply line, in particular the further connecting element, is at least partially made of plastic.

Preferably, the additional connecting element is designed as a rod, a bolt, a nail, a rivet, a pin or the like. The additional connecting element is preferably formed integrally, in particular integrally, with the wiper arm adapter. Preferably, the wiper arm adapter, in particular the additional connecting element, is made of a metallic material.

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 provided for connection to a connecting element of the wiper arm adapter.

At least one interface element of the interface unit is preferably provided for a fluid connection to a connecting element of the wiper arm adapter, in particular for a fluid connection to the supply channel via the connecting element. Preferably, the interface element is designed as a water-conducting connection between two water-conducting elements, for example as a plug connection between two pipes, channels or hoses. Preferably, the interface element is provided for establishing at least one, in particular exactly one, fluid connection. It is conceivable that the interface element is provided for establishing a plurality of different fluid connections. The interface element is preferably designed as a channel-like recess in at least one wiper blade adapter. The interface element preferably forms at least one, in particular exactly one, recess, which is used, in particular, for a plug connection to a connecting element of a wiper blade adapter. The interface element preferably forms a channel inside the wiper blade adapter. The interface element preferably forms a fluid connection, in particular a T-connection, with the adapter channel at the end facing away from the recess. It is conceivable for the interface element to be formed integrally, in particular in one piece, with the adapter channel.

The adapter channel preferably extends over the entire main extension of the wiper blade adapter. The adapter channel preferably forms two projection channels, which are arranged in particular at the end of the main extension of the wiper blade adapter. Preferably, the raised channels are provided for connecting in each case to a fluid channel of the wiper blade arranged therein. The fluid channels of the wiper blade are preferably arranged together on a spoiler element of an air deflection unit of the wiper blade. The term "wiping liquid channel or adapter channel" is intended to mean, in particular, a channel-like recess in at least one air guiding unit or in the wiper blade adapter, wherein the channel-like recess is provided for guiding a fluid, in particular a wiping liquid. A "channel-like recess" is intended to mean, in particular, a material-bound recess which, in at least one operating state and/or assembled state, is provided for guiding a fluid, in particular a wiping liquid. The expression that the wiping liquid channel is provided for "guiding a fluid" in at least one operating state and/or in the assembled state should in particular mean that the wiping liquid channel is provided for conveying a fluid which reaches 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 the one end of the wiping liquid channel in the operating state and/or in the assembled state, wherein the fluid flows in particular through the wiping liquid channel. At least one sealing element, such as, for example, a sealing ring, a gasket, a sealing line or the like, is preferably arranged on at least one, in particular each material end of the interface element for guiding the fluid. Preferably, a connection, in particular a plug connection, of the interface element of the wiper blade adapter to the connecting element of the wiper arm adapter forms a passage within it, which enables a fluid-conducting connection. Preferably, the wiping liquid channel has an at least substantially circular cross-section. Preferably, the scraping liquid passage is defined by a wind guide unit. Alternatively, it is conceivable for the wiping liquid channel to be formed, for example, by a single-or multi-component flexible tube and/or a single-or multi-component tube in the recess of the air guiding unit. It is conceivable for the air guiding unit to have at least two, in particular exactly two, wiping liquid channels. The at least one wiping liquid channel has, for example, at least one outlet element. "output element" shall mean an element that is configured to output a fluid. The output element can be designed in the form of a nozzle and/or an opening and is arranged in particular on an end cap, a wiper strip, in particular a wiper lip, and/or an elastic rail of the wiper blade.

Preferably, at least the further interface element is provided for electrical connection to a further connecting element, in particular to the power supply line via the further connecting element. Preferably, the further interface element is designed as an electrically conductive connection between two electrical conductors, for example as a plug connection between two cables. Preferably, the further interface element is provided for establishing at least two, in particular exactly two, electrical connections. It is conceivable that the further interface element is provided for establishing more than two, in particular a double, different electrical connections, such as, for example, three, four, etc. The further interface element is preferably designed as a channel-like recess in at least one wiper blade adapter, which is used to receive a connecting element, such as, for example, a plug. The further interface element preferably forms at least two, in particular exactly two, recesses, which are used, in particular, for a plug connection with a further connecting element of the wiper arm adapter. The plug connection of the further interface element to the further connection element preferably forms a passage within it, which allows at least one electrically conductive connection.

Preferably, at least one additional interface element is provided for mechanical connection to an additional connecting element, in particular to the wiper arm adapter. Preferably, the additional interface element is designed as a mechanical connection, such as, for example, a plug connection for objects, such as, for example, rods, bolts, nails, pins, rivets, etc. The additional interface element preferably forms a recess for a connection, in particular a plug connection, with an additional connecting element of the wiper arm adapter, in particular for receiving an additional connecting element of the wiper arm adapter. The additional interface element is preferably designed for a pivotable connection to an additional connecting element of the wiper arm adapter.

Preferably, the wiper blade adapter is formed integrally, in particular in one piece, with the interface unit. "integrally" is intended to mean, in particular, an at least material-to-material connection, for example, by means of a welding process, a bonding process, a spraying process, and/or other processes which appear to be expedient to the person skilled in the art, and/or advantageously integrally formed, such as, for example, by being produced from a casting and/or by being produced in a single-component or multi-component injection molding method and advantageously from a single blank. "integrally" shall mean in particular that it is formed in one piece. The one piece is preferably produced from individual blanks, briquettes and/or castings, particularly preferably by injection molding, in particular by single-component and/or multi-component injection molding. Preferably, the wiper blade adapter is made of at least one plastic material. Preferably, the interface unit is constructed from at least one plastic. It is conceivable that the interface unit is designed separately, in particular differently, from the wiper blade adapter, in particular from another material and/or another material combination. It is also conceivable for the wiper blade adapter to have a coupling region for receiving a separately designed interface unit.

The main extent of the interface element for the fluid connection and the main extent of the interface element for the electrical connection are preferably arranged perpendicular to the main extent of the wiper blade adapter, in particular perpendicular to the wiping direction. The "wiping direction" is to be understood to mean a direction which, when the wiper blade device is fully supported on a surface, is perpendicular to the main direction of extension of the wiper blade device and to a surface normal of the supporting surface. It is conceivable that the main extent of the interface element for making a fluid connection and the main extent of the interface element for making an electrical connection are arranged parallel to the wiping direction.

By means of the inventive configuration of the wiper blade device, 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 connection elements and/or power supply lines for coupling with interfaces can be advantageously realized, which can be designed in particular as a coupled structure for obtaining an advantageous stabilization of the connection elements and/or power supply lines. An advantageously intuitive assembly can be achieved. An advantageously time-saving assembly of the wiper blade device, in particular with different interface elements, can be achieved. It is possible to achieve that both connections, such as, for example, electrical and fluid connections, are made almost simultaneously during assembly.

It is further proposed that the interface unit has at least one additional interface element for mechanical connection to the wiper arm adapter, wherein the main extent of the additional interface element extends transversely, in particular at least substantially perpendicularly, to the main extent of the interface element and the further interface element. Preferably, the main extent of the additional interface element is arranged perpendicular to the main extent of the wiper blade adapter, in particular parallel to the wiping direction. Preferably, the main extent of the additional interface element is arranged perpendicular to the main extent of the wiper blade adapter. The expression "substantially perpendicular" is intended here to define, in particular, an 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 this angle has a maximum deviation, in particular of less than 8 °, advantageously of less than 5 °, and particularly advantageously of 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 the purpose of advantageous stability of the connection of the wiper arm adapter to the wiper blade adapter.

It is furthermore proposed that the wiper blade adapter has a wiper strip receptacle, wherein the interface unit has an interface region in which at least the interface element and the further interface element are arranged and which is arranged on an outer side of the wiper blade adapter facing away from the wiper strip receptacle. Preferably, the interface region is formed as a part of an outer side of the wiper blade adapter. Preferably, the interface region comprises an outer side of the wiper blade adapter from one end of the main extent of the wiper blade adapter up to a maximum of 40%, preferably a maximum of 30%, particularly preferably a maximum of 25%, of the main extent of the wiper blade adapter. Preferably, an outer side of the wiper blade adapter, in which the interface region is arranged, is arranged parallel to the wiper strip receptacle. Preferably, the interface region comprises an interface sub-region which has a smaller distance with respect to the wiper strip receptacle than further interface sub-regions of the interface region. Preferably, the interface element is arranged in the interface section. Preferably, further interface elements are arranged in the further interface section. The term "wiper strip holder" is intended in this respect to mean, in particular, a channel or a groove which is provided for at least partial reception of a wiper strip. A "wiper strip" is to be understood to mean, in particular, a unit made of at least one elastic material, which is provided for moving over a surface to be cleaned in contact, in particular a glass surface, preferably a vehicle glass, for cleaning the surface to be cleaned. Preferably, the wiper strip has a wiper base and a wiper lip. Preferably, the wiper strip receiving portion is provided for substantially enclosing the wiper strip at least over a substantial part of the main extension of the wiper blade adapter. Preferably, the interface element is arranged in the region of the interface section in the wiping direction toward the end of the wiper blade adapter. Preferably, the further interface element is arranged in the further interface region in the intermediate region of the wiper blade adapter in the wiping direction. An advantageous centralized arrangement of the interface elements, in particular of the interface element and the further interface element, can be achieved. Short connection paths can be realized in particular. An advantageously space-saving assembly can be realized in the interface section. An advantageously simultaneous assembly of the interface element and the further interface element can be realized in the interface section.

It is further 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 connecting portion region and the further connecting portion region towards an end of the main extension of the wiper blade adapter. An advantageous arrangement of the interface element and the further interface element away from the additional interface element is possible, as a result of which, in particular, the forces for establishing a connection on the interface element and the further interface element can be kept low.

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 or is at least partially formed by the wiper blade device. The wiper arm is preferably provided for connection to a wiper arm adapter, in particular by means of a plug connection. The wiper arm is preferably arranged on the vehicle, in particular on a glass of the vehicle. Preferably, the wiper arm is formed of metal. It can be achieved that the wiper blade device can be pivoted advantageously by means of a wiper arm for establishing a connection of the interface element and the further interface element, in particular by means of a parallel arrangement of the interface element and the further interface element. Advantageously, not only can the wiper arm 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 fluidic, mechanical and electrical connection.

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 which comprises at least one additional connecting element for a mechanical, pivotable connection to an additional interface element of an interface unit of the wiper blade adapter and which has 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, which opening is provided for the passage of the inlet channel. Preferably, the blocking element is embodied in the form of a plate. The blocking element is preferably formed integrally, in particular in one piece, with the wiper arm adapter. Preferably, the blocking element has a main extent 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 openings in the blocking element are arranged at the ends of the material of the blocking element in the wiping direction. Preferably, the connecting element is designed as a fluidic connecting element. Preferably, the connecting element is arranged at least partially in an opening in the blocking element. It is conceivable for the connecting element to be formed integrally with the blocking element. It is likewise conceivable for the connecting element to be fastened to the blocking element, for example by an adhesive connection, a weld seam, a clamping connection, such as a cable tie connection or the like. Preferably, the supply channel is arranged parallel to the wiper arm adapter up to the connecting element. Preferably, the connecting element forms two angles of 90 ° for further guiding the liquid along the wiper arm adapter and along the blocking element through the opening in the blocking element. A mechanical connection of the wiper arm adapter to the wiper blade adapter can advantageously be used for guiding the fluid. The stable mechanical connection can be used particularly advantageously for increasing the stability of the fluid connection.

It is additionally 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. The further connecting element is preferably connected to the cover on the inner side of the cover. Preferably, the further connecting element is connected to the cover, in particular in a manner that can be released without tools. It is conceivable for the further connecting element to be formed in one piece, in particular integrally, with the cover. It is conceivable that the supply line is at least partially fixed to the cover. It is conceivable for the supply line to be fastened to the cover and/or to a further connecting element in a manner such that it can be released without tools. The cover is provided in particular for covering the wiper arm adapter and the wiper blade adapter. A protected connection, in particular a mechanical, fluidic and/or electrical connection, of the wiper arm adapter to the wiper blade adapter can advantageously be achieved. The connection circuit can advantageously be designed to be guided by the cover.

Furthermore, it is proposed that the at least one cover is connected to the further connecting element in a manner such that it can be released without tools. The cover is preferably constructed from further connecting elements, which can be released without tools, for the desired replacement, for example for aesthetic reasons. It is conceivable that the at least one cover is formed by a wiper arm adapter and a wiper blade adapter in such a way that it can be released without tools. The cover can preferably be replaced in each stationary state of the wiper system, in particular in the assembled state. Advantageous assembly times of the cover can be achieved. A cover can be constructed which can advantageously be arranged in an exchangeable manner. In particular, a cover can be formed which advantageously enables the electrical connection to be released without tools. A cover can be constructed which is advantageously constructed without fixing elements.

Furthermore, a method for assembling a wiper system is proposed, in which a connection of an interface element of the wiper blade adapter to a connecting element of the wiper arm adapter and a connection of a further interface element of the wiper blade adapter to a further connecting element of the wiper arm adapter are each established at least substantially simultaneously in at least one method step. In at least one method step, the heating element is preferably fastened 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 wind deflector unit and the end caps are preferably inserted into and connected to the wiper strip and the elastic rail. In at least one method step, the air guiding unit is preferably inserted onto a raised channel on the wiper blade adapter for a 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 connected to the connecting element, preferably by pivoting, and the further interface element is simultaneously connected to the further connecting element. Advantageous connection times can be achieved, in particular for electrical and fluid connections after mechanical connection.

In this case, the wiper blade device according to the invention, the wiper system according to the invention and/or the method according to the invention should not be limited 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 which differs from the number mentioned at this point in order to fulfill the functionality described at this point. Furthermore, for the numerical ranges specified in this disclosure, values within the limits mentioned should also be regarded as being disclosed and can be used at will.

Drawings

Other advantages are derived from the following description of the figures. An embodiment of the invention is shown in the drawings. The figures, description and claims contain a number of features in combination. Those skilled in the art will also consider these features individually and generalize them to other meaningful combinations as appropriate. Wherein:

figure 1 shows a wiper blade device according to the invention and a wiper arm adapter connected to a wiper blade device according to the invention in a schematic view,

figure 2 shows a wiper blade device according to the invention in a schematic exploded view,

fig. 3 shows a schematic view of a wiper blade device according to the invention and an air guiding unit, an elastic rail, a heating element and a wiper strip connected thereto,

figure 4 shows 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 schematic view,

fig. 5 shows a schematic view of an inventive wiper blade device with an inventive interface unit and a wiper arm adapter with connecting elements in a partially connected state (fig. 5 a) and in a completely connected state (fig. 5 b), and

fig. 6 shows a method sequence for assembling a wiper system according to the invention in a schematic representation.

Detailed Description

Fig. 1 shows a wiper blade device 10. The wiper blade device 10 is in particular designed as at least one wiper blade 14. The wiper blade device 10 comprises a wiper blade adapter 12. Fig. 1 shows, in particular, a wiper blade device 10 having at least one wiper blade adapter 12 for releasable connection to a wiper arm adapter 18 of a wiper arm. Fig. 1 in particular shows a wiper system 16 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 includes at least one input channel 38.

The wiper blade device 10 comprises a wiper strip 20. The wiper blade device 10 includes an air guide unit 30. The wiper blade device 10 comprises two end caps 28. The wiper blade device 10 comprises a resilient rail 22.

The air guiding unit 30 is provided for deflecting the incoming air or the driving air acting on the wiper blade device 10 and/or for pressing the wiper blade 14 against a surface to be wiped, in particular a vehicle window. The air guiding unit 30 is designed in particular differently from the spring rail 22, the wiper strip 20, the wiper arm adapter 18. The air guiding unit 30 is at least partially made of plastic. In the assembled state, the air guiding unit 30 extends over at least a part, preferably at least a majority, of the extent of the wiper blade device 10, in particular of the wiper blade 14, in the main direction of extension of the elastic rail 22. The air guide unit 30 is designed to be interrupted in the central region for receiving the wiper blade adapter 12. The wind guide unit 30 includes two wind guide sub-units. Each air guide subunit includes at least one wiping liquid passage 62.

The end cap 28 is provided for fastening the air guiding unit 30 to the wiper strip 20. The end cap 28 has a substantially similar outer contour to the air deflection unit 30. The end cap 28 closes the wiper blade device 10 in an end region 54 of the main extent of the wiper blade 14. The end caps 28 each have at least one outlet element 26 for discharging the 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 guiding unit 30, in particular of the air guiding subunit.

The spring rail 22 is of flexible design and is provided in particular for exerting a pressing force when pressing the wiper blade 14 against the pane to be cleaned. The spring rail 22 has at least substantially the shape of a curved bar, in particular a flattened curved bar, in the unloaded state. 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.

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 a wiper blade 14 to a wiper arm adapter 18, in particular a wiper arm. An inlet channel 38 and two supply lines 40 are arranged on the wiper arm adapter 18, in particular on the wiper arm. The wiper blade device 10 is connected to a 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 for the wiper blade device 10 to have at least one wiper arm adapter 18. It is also conceivable for the wiper arm adapter 18 to be 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 made of metal.

Fig. 2 shows different components of the wiper blade device 10. In particular, the wiper blade device 10 has a heating element 24. The wiper blade adapter 12 has a wiper strip receptacle 74 and an elastic rail receptacle 48. A fluid channel is arranged on the wiper blade adapter 12. The fluid channels form two raised channels 60. The protrusion passage 60 is provided for plug-in connection with a wiping liquid passage 62 of the air guide unit 30 (see fig. 3). The wiper blade adapter 12 has at least one interface unit 66. The interface unit 66 is provided for a fluid, electrical and/or mechanical connection to the fluid, electrical and/or mechanical connecting

elements

42, 44, 46 of the wiper arm adapter 18.

Fig. 3 and 4 show that the interface unit 66 has at least one interface element 32 for making a fluid connection. The interface element 32 is provided for fluidically connecting the supply channel 38, in particular a 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 making an 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.

The interface element 32 has a main extent 68 (see fig. 4). The further interface element 34 has a main extension 70. The interface element 32 has a main extent 68 which is oriented at least substantially parallel to a main extent 70 of a 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 extent 72 of the additional interface element 36 extends transversely, in particular at least substantially perpendicularly, to the

main extents

68, 70 of the interface element 32 and the further interface element 34. The interface unit 66 is formed in one piece with the wiper blade adapter 12. In particular, the interface element 32 is designed as a channel-like recess for receiving a hose or a plug in the wiper blade adapter 12. The further interface element 34 is in particular designed as two channel-like recesses for receiving one or more cables or plugs in or on the wiper blade adapter 12. In particular, the additional interface element 36 is designed as a channel-like recess for receiving a screw or a pin or the like in the wiper blade adapter 12.

As shown in particular in fig. 3, the interface unit 66 has an interface area 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 an outer side of the wiper blade adapter 12 facing away from the wiper strip receiving portion 74. The interface element 32 and the further interface element 34 are arranged in the end region of the main extension of the wiper blade adapter 12. The interface element 32 is arranged in an end region of the wiper blade adapter 12 extending in the wiping direction 50, in particular in an interface region 76. It is conceivable for the interface element 32 to be arranged in an end region opposite an end region of the wiper blade adapter 12 extending in 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 in the wiping

direction

50, 52.

Fig. 4 shows 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 in the blocking element 56. The opening 64 is provided for the passage of the supply channel 38, in particular of the connecting element 42. The end of the feed channel 38 is designed as a connecting element 42. The supply channel 38 is formed by a hose or a bent and/or partially flexible tube in the surroundings of the wiper arm adapter 18. The end of the feed channel 38 is guided through an opening 64 of the blocking element 56.

Fig. 4 shows, in particular, that the wiper arm adapter 18 has at least one cover cap 58. The cover 58 is constructed of plastic. On the cover 58, a further connecting element 44 of the wiper arm adapter 18 is arranged, which is intended to be coupled to a further interface element 34 of an interface unit 66 (see fig. 5a and 5 b). The at least one cover cap 58 is connected to the further connecting element 44 in a tool-free releasable manner. It is contemplated that the cap cover 58 may be configured in different colors and/or in different patterns.

The wiper arm adapter 18 comprises at least one additional connecting element 46 for a mechanical pivotable connection to an additional interface element 36 of an interface unit 66 of the wiper blade adapter 12 (see fig. 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 for mechanically blocking pivoting of the wiper blade adapter 12 relative to the wiper arm adapter 18. The additional connecting element 46 is provided for a plug connection with the additional interface element 36. The additional connecting element 46 enables a pivoting of the wiper arm adapter 18, in particular of the wiper arm, relative to the wiper blade adapter 12, in the case of a plug connection with the additional interface element 36, in particular until the blocking element 56 blocks the pivoting (see fig. 5a and 5 b). In the state in which the blocking element 56 blocks a pivoting movement of the wiper arm adapter 18 relative to the wiper blade adapter 12, the interface element 32 and the connecting element 42 and the further interface element 34 and the further connecting element 44 form a particularly parallel plug connection.

Fig. 5a shows, in particular, the supply channel 38, which is arranged on the wiper arm. The inlet channel 38 is designed as a partially reinforced structure in the surroundings of the blocking element 56. It is conceivable for the supply channel 38 to be fastened at least partially to the blocking element 56.

Fig. 5a and 5b show that the further connecting element 44 is designed, in particular, in one piece or integrally connected to the cover 58. The further connecting element 44 is made of plastic. It is contemplated that the cover 58 may be constructed with different color panels.

FIG. 6 illustrates a method for assembling the wiper system 16.

In at least one method step, in particular in a preparation step 80, the heating element 24 is fixed on or at the spring rail 22. It is conceivable to fasten the heating element 24 to the spring rail 22, in particular to one side of the spring rail 22, in particular to one of the two sides having the largest surface area, by means of an adhesive connection. It is conceivable to fasten two heating elements 24 on the two sides of the spring rail 22, which sides have the largest area.

In at least one method step, in particular in a wiper blade production step 82, the spring rail 22 is pushed together with the heating element 24 into the spring rail receptacle 48, in particular 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 midpoint of the main extent 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 center of the main extension of the wiper strip 20.

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

In at least one wiper blade production step 82, the air guiding unit 30 is inserted onto the protruding channel 60 of the wiper blade adapter 12 for a fluid connection. In particular, in at least one wiper blade production step 82, the end cap 28 is inserted onto the air guiding subunit of the air guiding unit 30 for the fluid connection of the output element 26 to the air guiding unit 30.

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.

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

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

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 wiper arm adapter 18 from pivoting relative to the wiper blade adapter 12. In at least one method step, in particular a pivoting step 86, the interface element 32 is connected to the connecting element 42 by pivoting and the further interface element 34 is connected to the further connecting element 44 substantially simultaneously. In at least one method step, a connection of the interface element 32 of the wiper blade adapter 12 to the connecting element 42 of the wiper arm adapter 18 and a connection of the further interface element 34 of the wiper blade adapter 12 to the further connecting element 44 of the wiper arm adapter 18 are each established at least substantially simultaneously. In particular, it is conceivable that mechanical, fluidic and electrical connections can be simultaneously realized in at least one pivoting step 86.

Claims

1. Wiper blade device having at least one wiper blade adapter (12) for releasable connection to a wiper arm adapter (18) of a wiper arm, wherein the wiper blade adapter (12) has at least one interface unit (66) for a fluid, electrical and/or mechanical connection to a fluid, electrical and/or mechanical connecting element (42, 44, 46) of the wiper arm adapter (18), characterized in that the interface unit (66) has at least one interface element (32) for fluid connection, which has a main extent 68, the main extent is oriented at least substantially parallel to a main extent (70) of a further interface element (34) of the interface unit (66), which is provided for electrical connection.

2. Wiper blade device according to claim 1, characterized in that the interface unit (66) has at least one additional interface element (36) for mechanical connection with the wiper arm adapter (18), wherein a main extent (72) of the additional interface element (36) extends transversely, in particular at least substantially perpendicularly, to the main extents (68, 70) of the interface element (32) and of the further interface element (34).

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

4. Wiper blade device according to one of the preceding claims, characterized in that the interface element (32) and the further interface element (34) are arranged in an end region (78) of a main extension of the wiper blade adapter (12).

5. Wiper system having a wiper blade device (10) according to one of claims 1 to 4 and having a wiper arm which can be connected to the wiper blade device (10).

6. Wiper system according to claim 5, characterized by at least one input channel (38) arranged on the wiper arm and by at least one wiper arm adapter (18) which comprises at least one additional connecting element (46) for a mechanical, pivotable connection with an additional interface element (36) of an interface unit (66) of the wiper blade adapter (12) and which has at least one mechanical blocking element (56) for mechanically blocking the 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) which is provided for the passage of the input channel (38).

7. Wiper system according to claim 5 or 6, 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 with a further interface element (34) of the interface unit (66).

8. Wiper system according to claim 7, characterized in that the at least one cover cap (58) is connected to the further connecting element (44) in a tool-free releasable manner.

9. Method for assembling a wiper system (16) according to one of claims 5 to 8, characterized in that in at least one method step a connection of the interface element (32) of the wiper blade adapter (12) to the connecting element (42) of the wiper arm adapter (18) and a connection of the further interface element (34) of the wiper blade adapter (12) to the further connecting element (44) of the wiper arm adapter (18) are each established at least substantially simultaneously.