Scraper device

Abstract

The invention relates to a wiper device having a deflector unit (22a, 22b), at least one nozzle element (26a, 26a', 26b, 26b') and at least one channel unit (30a, 30b) for fluid connection with the at least one nozzle element (26a, 26a', 26b, 26b'). It is proposed that the at least one nozzle element (26a, 26a', 26b, 26b') is arranged on an end region (46a, 46a', 46b, 46b') of the deflector unit (22a, 22b) as viewed along a main extension axis (54a, 54b) of the deflector unit (22a, 22b).

Description

Background Technology

[0001] A scraper device has been proposed, which has a windbearing unit, at least one nozzle element, and at least one channel unit for fluid connection with said at least one nozzle element. Summary of the Invention

[0002] The present invention relates to a scraper device having a baffle unit, at least one nozzle element and at least one channel unit for fluid connection with said at least one nozzle element.

[0003] The present invention proposes that, when viewed along the main extension axis of the deflector unit, the at least one nozzle element is arranged on the end region of the deflector unit.

[0004] The term "scraper device" should preferably be understood as at least one component, preferably a group of sub-components, of a scraper blade, preferably a glass scraper blade, and advantageously a vehicle glass scraper blade. Preferably, the scraper device may also comprise the entire scraper blade, preferably the entire glass scraper blade, and advantageously the entire vehicle glass scraper blade. Preferably, the scraper device is at least configured as a portion of a scraper blade in the form of a flat beam structure and / or at least configured as a portion of a flat beam scraper and / or configured as a scraper blade in the form of a flat beam structure and / or configured as a flat beam scraper. Preferably, the scraper device is configured for use on a vehicle. Preferably, the scraper device is configured for cleaning surfaces, preferably glass on a vehicle. Preferably, the scraper device is coupled to the vehicle, preferably the vehicle's, scraper arm for cleaning vehicle glass. "Configured" should preferably be understood as specifically configured, specifically designed, and / or specifically equipped. "An object is configured for a specific function" preferably means that the object performs and / or implements this specific function in at least one use state and / or operating state. "Operating state" preferably refers to a state in which the wiper device is ready to operate and / or is in the process of wiping and / or wiping operation, in which the wiper strip unit of the wiper device is preferably guided on the vehicle glass and advantageously abuts against the vehicle glass.

[0005] A "deflector unit" is preferably to be understood as a unit which is provided for blocking the inflow of air, i.e. the driving wind, onto the wiper device and / or for pressing the wiper blade against the surface to be wiped, preferably a vehicle glass. The deflector unit is preferably configured differently from a spring rail, a wiper strip unit, a wiper arm adapter and / or a spring rail. Preferably, the deflector unit is at least partially and preferably mostly composed of plastic. Preferably, the deflector unit extends along the main extension axis of the wiper strip unit over at least a part, preferably at least a majority, of the maximum extension range of the wiper strip unit in the operating state and / or in the assembled state. Preferably, the deflector unit has at least one, preferably at least two spoilers. Preferably, at least one spoiler of the deflector unit is provided for blocking the driving wind and has at least one concave inflow face. Preferably, at least one spoiler of the deflector unit, preferably at least two spoilers of the deflector unit, extend aligned over at least a majority of the maximum main extension range of the deflector unit. The "main extension axis" of an object is preferably to be understood as an axis of the object which extends parallel to the longest edge length of the smallest parallelepiped which completely encloses the object. The "main extension direction" of an object is preferably to be understood as the direction parallel to the main extension range. "Majority of the extension range" is preferably to be understood as at least 70%, preferably at least 80% of the extension range.

[0006] Preferably, the wiper device has at least a wiper strip unit. Preferably, the wiper strip unit has a wiper base body composed of at least one elastic material, which has a wiper lip. The wiper lip is preferably provided for contactingly moving over the surface to be cleaned, preferably a glass surface, preferably a vehicle glass, in order to clean the surface to be cleaned.

[0007] Preferably, the wiper device has at least one spring rail. Preferably, the spring rail is configured as a macroskopisch element which has at least one extension range which can be elastically varied in the normal operating state and / or in the assembled state by at least 10%, preferably by at least 20%, preferably by at least 40% and particularly advantageously by at least 50% and which preferably generates a counterforce depending on the variation of the extension range and preferably proportional to the variation, which counteracts the variation. "Assembled state" is preferably to be understood as a state in which the wiper device is ready for operation for the wiping process and / or wiping operation. Preferably, the wiper device is arranged on and / or coupled to a wiper arm in the assembled state, wherein preferably there is a mechanical, electrical and / or fluid-technical coupling between the wiper arm and the wiper device.

[0008] Preferably, the wiper device has a channel unit with at least one channel-like recess and / or at least one hose-like element and / or at least one tube-like element, wherein the channel-like recess and / or the hose-like element and / or tube-like element are / is provided for guiding a fluid, preferably a wiping liquid. Preferably, the channel unit is at least partially, preferably mostly, configured as a hose and / or a tube. The expression that the channel unit is provided for "threading a fluid" in at least one operating state and / or in an assembled state is preferably to be understood as meaning that the channel unit is provided for transporting a fluid arriving on one end of the channel unit from this one end of the channel unit to a different end of the channel unit in the operating state and / or in the assembled state, wherein the fluid preferably flows through the channel unit. Preferably, the channel unit has an at least substantially circular cross section. Alternatively, it is in principle conceivable and technically unproblematic to provide the channel unit with a polygonal, preferably at least substantially square, cross section, an elliptical cross section or other cross sections which appear meaningful to the person skilled in the art. Preferably, the channel unit is at least partially limited by a deflector unit. Preferably, the channel unit is at least partially limited by a one-piece or multi-piece, preferably elastic, hose and / or a one-piece or multi-piece tube. Other design forms of the channel unit which appear meaningful to the person skilled in the art, like for example a mutual coupling of cavities of different types of components of the deflector unit, are also conceivable. Preferably, the channel unit has at least two, preferably exactly two, channel sections. At least one channel unit, preferably each channel section, has at least one open end region. Preferably, at least one channel unit has at least one wiping liquid input device for connecting to an external wiping water container.

[0009] The "end region" of the object is preferably to be understood as a region which extends beyond the object by a maximum of 20%, preferably a maximum of 10% of the extent of the object, wherein the region comprises a maximum of 30%, preferably a maximum of 20% of the extent of the object in the direction of the extent of the object. Preferably, the squeegee device comprises at least two, preferably exactly two nozzle elements. Preferably, at least one nozzle element is provided for discharging a squeegee liquid. Preferably, at least one nozzle opening is arranged on the at least one nozzle element. Preferably, the nozzle opening is a material portion of the nozzle element in which an opening for the discharge of fluid is arranged. Preferably, at least two, preferably exactly two, at least three, at least four or the like nozzle openings are arranged on the at least one nozzle element. Preferably, the at least one nozzle element is provided to be fluidically connected to the channel unit in the end region, preferably by a plug connection. Preferably, each nozzle element is provided to be fluidically connected to each channel section of the channel unit in the end region, preferably by a plug connection. It is in principle conceivable and technically unproblematic to implement that at least one, preferably each channel section has an adapter which is provided for a plug connection with each nozzle element. Preferably, the at least one channel unit has a sealing, preferably a sealing edge, at a coupling site which is provided for a coupling of the at least two channel sections to one another or to other components, preferably at the ends of the at least two channel sections, by means of which a fluid-tight coupling can be achieved. Preferably, at least one nozzle opening of each nozzle element can be movably supported on the at least one nozzle element, in particular by an opening support element. Preferably, at least one nozzle opening of the at least one nozzle element is provided for a fluid discharge in a direction which is oriented away from the main extension plane of the spring rail, in particular towards the surface to be cleaned. Preferably, at least one nozzle opening of the at least one nozzle element is provided for a fluid discharge in a direction which forms an angle of at least 30° with respect to the main extension plane of the spring rail and is oriented in particular in the direction of the surface to be cleaned. Preferably, the main extension plane of the object is a plane which is parallel to the largest side extension of a smallest imaginary parallelepiped which completely encompasses the object. Preferably, at least one nozzle opening of the at least one nozzle element is oriented in the direction of the squeegee blade adapter. Preferably, the squeegee device has a squeegee blade adapter which has a contact area with components of the squeegee device and is connected to the components of the squeegee device in a loss-proof manner and is provided for the construction of a coupling area of the squeegee blade components for a coupling and / or contact with components, preferably a squeegee arm adapter, on the surface to be cleaned, preferably a vehicle glass. Preferably, the at least one nozzle element has at least one further nozzle opening. Preferably, the at least one further nozzle opening is oriented in the direction of the squeegee strip unit at least substantially perpendicular to the at least one nozzle opening.Preferably, the at least one nozzle element has at least one plug-in projection. Preferably, the at least one plug-in projection is provided for plugging into the channel unit. Preferably, the nozzle element is connected to the channel unit, preferably the deflector plate unit, via the at least one plug-in projection, preferably by plug-in connection. Preferably, the at least one nozzle element has a sealing, preferably a sealing edge, at the coupling site provided for coupling to one another or to another component, preferably on the plug-in projection, by means of which a fluid-tight coupling can be achieved. Alternatively or additionally, the at least one sealing can also comprise a sealing ring, for example an O-ring, and / or other sealings familiar to the person skilled in the art.

[0010] Preferably, the channel unit can comprise at least one distributor unit, in particular, but not exclusively, a valve unit. Preferably, the distributor unit is provided for controlling the volume flow of the fluid through the channel unit into the end region of the deflector plate unit, preferably towards the nozzle element, preferably towards the at least one nozzle opening. Preferably, the distributor unit distributes the inputted wiping liquid in the wiping state and / or in the spraying state of the at least one nozzle element in such a way that similar wiping liquid pressures occur on at least two selected and / or on all nozzle elements. It can be considered that the distributor unit distributes the inputted wiping liquid in the wiping state and / or in the spraying state of the at least one nozzle element in such a way that different wiping liquid pressures occur on at least two selected and / or on all nozzle elements. A good and / or uniform cleaning effect can be advantageously achieved.

[0011] An advantageous cleaning function can be achieved by the design of the wiper device according to the application. An advantageous fluid discharge can be achieved. An advantageous uniform fluid discharge can be achieved. An advantageous fluid distribution can be achieved, preferably during the wiping process. An advantageously large wetted surface can be achieved during the wiping process. Fluid distribution that matches the size of the wiper blade can be achieved, preferably by discharging the fluid into the end region of the deflector plate unit. An advantageously large cleaning area of the glass can be achieved. Advantageously, the unrestricted necessary movability of the spoiler on the wiper device can be achieved.

[0012] It is further proposed that the wiper device has at least one, in particular already mentioned, wiper strip unit and at least one wiper blade end cap, which is arranged in the end region of the wiper strip unit, viewed along the main extension axis of the wiper strip unit, and which is provided for guiding the at least one nozzle element.

[0013] Preferably, the at least one wiper strip unit has a maximum main extension which is longer than the maximum main extension of the deflector unit, preferably longer than the sum of the maximum main extensions of the at least two spoilers of the deflector unit. Preferably, the at least one wiper blade end cap has a maximum main extension which is at least substantially equal to the maximum main extension of the at least one nozzle element. "At least substantially equal" is to be understood in that the smaller value, i.e. the larger value, is at most 40 %, preferably at most 30 % and particularly preferably at most 25 % smaller than the larger value. Preferably, the maximum main extension of the at least one wiper blade end cap is at least 10 %, preferably at least 20 % longer than the maximum main extension of the nozzle element. Preferably, the at least one wiper blade end cap is provided for a form- and / or force-locked connection, in particular a plug connection, with the at least one spring rail and / or the wiper strip unit. Preferably, the at least one wiper blade end cap has at least one, preferably at least two, latching elements for a form- and / or force-locked, in particular a latching connection, with the at least one spring rail. Preferably, the at least one wiper blade end cap at least partially surrounds or clamps the at least one nozzle element in a coupled, preferably plugged, state with the at least one spring rail. Preferably, the at least one wiper blade end cap is provided for a connection with the at least one spring rail in one end region, viewed along the main extension axis of the wiper strip unit. Preferably, the wiper blade end cap has at least one concave inflow face. Preferably, the inflow face of the at least one wiper blade end cap is configured and / or arranged, preferably in the coupled state of the wiper device, as an extension of at least one inflow face of the at least one deflector unit, preferably of the at least one spoiler. Preferably, an inflow protrusion is arranged on the at least one wiper blade end cap. Preferably, the inflow protrusion is arranged on a side of the wiper blade end cap which faces away from the at least one spring rail and / or the wiper strip unit. The inflow protrusion of the wiper blade end cap preferably extends in a direction which faces away from the main extension plane of the deflector unit, in particular in a direction which faces away from the surface to be cleaned, preferably in a direction which faces away from the wiper strip unit. Preferably, the at least one wiper blade end cap delimits at least one cavity.

[0014] Preferably, the at least one cavity of the squeegee end cap extends inside the squeegee end cap into the at least one inflow protrusion. Preferably, the at least one cavity, preferably the portion of the cavity extending into the inflow protrusion, is configured to at least partially accommodate the nozzle element. Preferably, a guide element is arranged on the at least one nozzle element. Preferably, the guide element is at least substantially T-shaped in configuration. Preferably, the at least one cavity, preferably the portion of the cavity extending into the inflow protrusion, is configured to at least partially accommodate the guide element, preferably the nozzle element. Preferably, the at least one guide element is arranged in the portion of the cavity extending into the inflow protrusion in a linearly guided manner, preferably at least in the coupled state of the squeegee device. The "coupled state of the squeegee device" preferably is to mean a state in which the at least one deflector unit, the at least one spring rail, the at least one squeegee strip unit, the at least one channel unit, the at least one nozzle element and the at least one squeegee strip unit are connected to one another. It can be achieved that an uncontrolled movement, preferably a rotational movement, of the nozzle element can be avoided due to an excessively high fluid pressure during cleaning. By means of the squeegee end cap, an advantageous stabilization of the nozzle element in the end region of the main extension axis of the deflector unit can preferably be achieved. A longitudinal movement caused by the restricted movement of the spoiler can be directly realized by the nozzle element without restricting the spraying function.

[0015] It is further proposed that the wiper device has at least one, in particular already mentioned above, blade end cap which at least partially covers the deflector plate unit in the end region and at least partially covers the nozzle element. Preferably, the at least one blade end cap has at least one nozzle recess on the side opposite the inflow face for at least partially accommodating the at least one nozzle element. Preferably, the at least one nozzle recess is configured as an opening of a cavity limited by the blade end cap. Preferably, the at least one nozzle recess extends at least substantially from an end of the main extension of the blade end cap to a center of the main extension of the blade end cap. Preferably, the nozzle element is at least partially arranged inside the cavity limited by the at least one blade end cap in the coupled state of the wiper device. Preferably, the nozzle element is at least partially, preferably mostly, arranged inside the cavity limited by the at least one blade end cap and at least partially, preferably mostly, arranged outside the cavity limited by the at least one blade end cap in the coupled state of the wiper device. Preferably, the at least one nozzle element is at least partially, preferably mostly, preferably at least 75% by volume, contained inside a hypothetical smallest parallelepiped which just also encompasses the at least one blade end cap in the coupled state of the wiper device. Preferably, the at least one blade end cap at least partially covers at least one end side of the deflector plate unit. Preferably, the at least one blade end cap covers at least a majority, preferably at least 80%, of the preferably T-shaped guide element of the nozzle element. Preferably, the at least one blade end cap at least partially and preferably mostly covers at least one side of the nozzle element facing the guide element. An advantageously protected end region of the deflector plate unit can be achieved. An advantageous protection of the nozzle element in the end region of the deflector plate unit can be achieved by the blade end cap. Advantageously, it can be ensured that the spray applicability of the nozzle element in the end region is ensured.

[0016] It is further proposed that the nozzle element has a stop which limits the rotation of the nozzle element in the end region relative to the deflector unit. Preferably, the stop is arranged in the surroundings of the at least one nozzle opening of the nozzle element, preferably on the same side as the at least one nozzle opening on the nozzle element. Preferably, the stop is configured integrally with the guide element and / or the at least one nozzle opening. Preferably, the stop of the nozzle element limits the rotation of the nozzle element relative to the wiper end cap and / or the deflector unit. Preferably, the stop limits the rotation of the nozzle element, preferably of the nozzle opening, relative to the deflector unit and / or relative to the wiper strip unit in the coupled state of the wiper device. Preferably, the stop limits the rotation of the nozzle element, preferably of the nozzle opening, relative to the fluid discharge direction of the nozzle element which remains constant. Preferably, the at least one wiper end cap constitutes a stop face for limiting the movement of the stop. Preferably, the stop is provided for stopping on the stop face when the nozzle element is rotated. Preferably, the stop is configured as a preferably planar protrusion of the nozzle element. An uncontrolled rotation of the nozzle element in the end region of the deflector unit, preferably during cleaning, can advantageously be avoided.

[0017] It is further proposed that the channel unit is arranged on the outer side of the deflector unit for guiding the fluid along the deflector unit from the middle region of the deflector unit, preferably from the middle region to the end region of the deflector unit. Preferably, in this embodiment the channel unit is configured separately from the deflector unit. The channel unit is preferably configured as a hose in this embodiment. Preferably, the channel unit is connected to the deflector unit, preferably to the outer side of the deflector unit, by means of at least one connecting element, like for example a clip element. As an alternative, it is conceivable in principle that the channel unit is bonded to the outer side of the deflector unit, preferably to the outer side of the deflector unit facing away from the inflow face and / or the spring rail. An advantageous fluid supply to the nozzle element can be achieved. An advantageously accessible connection of the nozzle element to the channel unit can be achieved. An advantageously easily maintainable connection of the nozzle element to the channel unit can be achieved. An advantageously easily replaceable channel unit for supplying the nozzle element in the end region of the deflector unit can be achieved.

[0018] It is further proposed that the wiper device has at least one bearing unit for movably supporting the nozzle element at least partially in the end region. Preferably, the wiper device has at least one bearing unit for each nozzle element. Preferably, the bearing unit is arranged on the channel unit, preferably on at least one end of the channel unit, preferably on at least one end of the channel section. Preferably, the bearing unit is arranged on the deflector plate unit, preferably on the end region of the deflector plate unit, preferably at least in the coupled state of the wiper device, as viewed along the main extension axis of the deflector plate unit. Preferably, the bearing unit is arranged on at least one nozzle element. It is in principle conceivable and technically unproblematically realizable that at least one nozzle opening is movably, preferably pivotably, supported on at least one nozzle element. Preferably, the wiper device has at least one, preferably one for each nozzle opening, opening bearing element. Preferably, the at least one opening bearing element is provided for movably, preferably pivotably, supporting the at least one nozzle opening relative to the nozzle element. Preferably, the opening bearing element can be configured at least partially, preferably predominantly, as a pivot bearing, for example, but not limited to, as a ball joint bearing or at least partially as a hinge. An advantageous, preferably with different spray directions, spray function of the nozzle element can be realized. A nozzle element that can be moved advantageously in order to discharge fluid from the end region of the deflector plate unit can be realized. The fluid discharge direction from the end region of the deflector plate unit can be advantageously precisely adapted to the field of vision of the user.

[0019] Furthermore, it is proposed that, in order to adjustably discharge fluid from the end region of the deflector unit, the nozzle element is designed to be at least partially electrically adjustable and / or electrically heatable. Preferably, the nozzle element is at least partially electrically heatable. Preferably, the wiper device has at least one heating element. By "heating element" is preferably meant an element which converts an inputted energy, preferably electrical energy, into heat and is provided for discharging heat into its surroundings. The heating element is preferably arranged in the surroundings of the nozzle element. Preferably, the heating element is provided for temperature-regulating at least one nozzle element. Preferably, at least one heating element is arranged on at least one nozzle element in the surroundings of the nozzle opening. Preferably, the at least one heating element is at least partially, preferably predominantly, configured as a heating resistor. The at least one heating element is formed, for example, from a heating wire and / or a heating foil and / or a preferably electrically conductive heating ceramic and / or a preferably electrically conductive heating paste. Preferably, the wiper device has at least one line for electrical energy to the at least one heating element. Advantageous conditions for discharging fluid can be achieved. By means of the heating element, the wiper device can fulfill at least one advantageous heating function and ensure spray applicability in an advantageously large temperature range. Discharge of fluid can be achieved at low ambient temperatures, preferably below 4°C. Cleaning of the vehicle glass can be achieved at outside temperatures below 0°C and / or below the freezing point of water, preferably with a wiping liquid. Preferably, in order to adjustably discharge fluid from the end region of the deflector unit, the nozzle element is configured to be at least partially electrically adjustable. Preferably, the wiper device has at least one actuator element. Preferably, the at least one actuator element is at least partially, preferably predominantly, configured as an electric motor. Preferably, the wiper device has at least one line for electrical energy to the at least one actuator element. Preferably, a transmission unit is arranged on the actuator element, which is provided for transmitting force from the actuator element to a component in order to move the component, like, for example, the at least one nozzle element and / or the at least one nozzle opening. Preferably, at least one structural element is arranged on the nozzle element, preferably on the plug-in projection and / or on the at least one movably supported nozzle opening. Preferably, the structural element is provided for a clamping surface configured for the actuator element and / or the transmission unit. Preferably, the actuator element is provided for at least partially moving the nozzle unit. Preferably, the actuator element is provided for at least partially moving the nozzle opening. Preferably, the actuator element is provided for transmitting force, preferably rotational force and / or pivotal force, to the at least one nozzle element and / or the at least one nozzle opening by means of the structural element. Preferably, the nozzle element, preferably the nozzle opening of the nozzle element, is electrically adjustable by means of the actuator element. It is in principle conceivable and technically unproblematic to arrange the at least one actuator element on the at least one nozzle opening of the nozzle element.Preferably, the at least one actuator element is arranged for preferably exclusively applying a force to the at least one nozzle opening. Preferably, the actuator element is arranged for pivoting and / or rotating the at least one nozzle opening. A fluid discharge direction can be realized which can advantageously be controlled. An advantageous discharge of fluid from the end region of the deflector plate unit onto the field to be cleaned by the wiper device can be realized.

[0020] Furthermore, it is proposed that the nozzle element has at least two nozzle openings for discharging at least two different volume flows in the direction from the end region towards the middle of the main extension of the deflector plate unit, preferably the middle region. The nozzle openings preferably have a tapering channel end in their interior. Preferably, the at least two different nozzle openings have at least two fluid discharge directions differing by at least 10°. Preferably, the at least two different nozzle openings have different geometries, preferably interior geometries. Preferably, the interior geometries of the nozzle openings, preferably of the nozzle element, differ in different maximum cross-sectional dimensions perpendicular to the fluid flow direction of the tapering channel end, preferably for discharging at least two different volume flows of fluid in the direction from the end region towards the middle of the main extension of the deflector plate unit, preferably the middle region. Preferably, the interior geometries of the nozzle openings, preferably of the nozzle element, differ in different maximum lengths of the tapering channel end, preferably in the fluid flow direction, preferably for discharging at least two different volume flows of fluid in the direction from the end region towards the middle of the main extension of the deflector plate unit, preferably the middle region. Preferably, the interior geometries of the nozzle openings, preferably of the nozzle element, differ in different inner wall structures, preferably for discharging at least two different volume flows of fluid in the direction from the end region towards the middle of the main extension of the deflector plate unit, preferably the middle region. An advantageous discharge of fluid from the end region of the deflector plate unit into the field of view and outside the field of view of the user can be realized. Advantageously, the wiper device can be wetted with wiping liquid on the end of the wiper device.

[0021] Furthermore, a wiper system having a wiper arm and having a wiper device according to the application is proposed. Preferably, the wiper arm comprises at least one wiper arm adapter for coupling with the wiper blade adapter. An advantageous combination of the wiper arm with the wiper device can be realized. An advantageous supply of wiping liquid in the end region of the deflector plate unit by the wiper arm for the at least one nozzle element can be realized.

[0022] Furthermore, a method for assembling a wiper device according to the application is proposed. Preferably in at least one method step the wiper strip unit is connected with the spring rail, preferably by pushing in. Preferably in at least one method step the at least one deflector unit, preferably at least one spoiler, is connected with the wiper strip unit, preferably with the spring rail, by moving. Preferably in at least one method step the channel unit is connected with the deflector unit. Preferably in at least one method step the at least one nozzle element is connected with the channel unit, preferably by means of a plug connection of at least one part of the nozzle element with the channel unit. Preferably in at least one method step the at least one wiper blade end cap is inserted onto the spring rail. Preferably in at least one method step the at least one wiper blade end cap is connected with the at least one spring rail by means of a latching connection. An advantageous intuitive, preferably uncomplicated and / or easy to handle assembly of the nozzle element in the end region of the deflector unit can be achieved.

[0023] Herein, the wiper device according to the application, the wiper system according to the application and / or the method according to the application should not be limited to the above-mentioned applications and embodiments. In particular, the wiper device according to the application, the wiper system according to the application and / or the method according to the application in order to fulfill the mode of action described herein can have a different number of the individual elements, components and units mentioned herein as well as method steps. Furthermore, within the value ranges given in the present disclosure, values which lie within the mentioned limits should also be considered as disclosed and can be used arbitrarily. BRIEF DESCRIPTION OF DRAWINGS

[0024] Further advantages result from the following description of the figures. In the figures, two embodiments of the application are shown. The figures, the description and the claims contain a large number of features in combination. The person skilled in the art can also consider these features individually and in suitable subcombinations and summarize further meaningful combinations. Therein are shown:

[0025] Figure 1 a wiper system according to the application with a wiper device according to the application and with a wiper arm, shown in an exploded view,

[0026] Figure 2 a wiper device according to the application, shown in a schematic view,

[0027] Figure 3 a wiper device according to the application, shown in a schematic view, and

[0028] Figure 4 a method according to the application for assembling a wiper device according to the application, shown in a schematic view,

[0029] Figure 5 An alternative wiper device according to the application is shown in an exploded view. DETAILED DESCRIPTION

[0030] Figure 1 A wiper system 40a with a wiper arm 12a and with a wiper device 10a is shown. The wiper arm 12a comprises a wiper arm adapter 14a. It is conceivable that the wiper arm 12a has two components, namely a hose guide device for guiding a fluid supply hose and / or an electrical supply line. The wiper arm comprises at least one fluid supply hose (not shown). In particular, the wiper arm comprises at least one electrical supply line (not shown). The wiper device 10a comprises a wiper blade adapter 16a. The wiper device 10a comprises two spring rails 18a, 18a'. The wiper device 10a comprises two wiper blade end caps 20a, 20a'. The wiper device 10a comprises a deflector plate unit 22a. The wiper device 10a comprises a wiper strip unit 24a. The wiper device 10a comprises at least one channel unit 30a. The wiper device 10a comprises at least one nozzle element 26a, 26a'. The wiper device 10a comprises two nozzle elements 26a, 26a'. In particular, the wiper arm comprises at least one electrical line for supplying energy to an electrical component (not shown).

[0031] The deflector plate unit 22a has two spoilers 28a, 28a'. The deflector plate unit 22a, in particular the two spoilers 28a, 28a', has an in particular concave inflow face 86a. The channel unit 30a is arranged at least partially in the deflector plate unit 22a. In the spoilers 28a, 28a' there is respectively arranged a channel section 32a, 32a'. The channel unit 30a is at least partially and preferably mostly configured as a channel-like recess in the deflector plate unit 22a. The channel unit 30a is provided for fluid connection with the at least one nozzle element 26a, 26a'. Preferably, the channel unit 30a, in particular in the wiper blade adapter 16a, has a flexible interface module, in particular a coupling element 82a, for fluidly connecting the channel unit 30a in the deflector plate unit 22a with a fluid container.

[0032] The at least one wiper blade end cap 20a, 20a' is arranged in an end region 58a, 58a' of the wiper strip unit 24a, viewed along a main extension axis 56a of the wiper strip unit 24a. The at least one wiper blade end cap 20a, 20a' at least partially covers the deflector plate unit 22a in the end region 46a, 46a'. The at least one wiper blade end cap 20a, 20a' at least partially covers at least one end side 48a, 48a' of the deflector plate unit 22a in the end region 46a, 46a'. The spring rail 18a, 18a' has at least two latching recesses 50a, 52a, 50a', 52a' on the end of its main extension range, respectively. The at least one wiper blade end cap 20a, 20a' is provided for a latching connection with the latching recesses 50a, 52a, 50a', 52a' of the spring rail 18a, 18a'.

[0033] Figure 2 A wiper device 10a is shown. In Figure 2At least one nozzle element 26a' is shown in particular. The at least one nozzle element 26a, 26a' is arranged on an end region 46a, 46a' of the deflector unit 22a, viewed along the main extension axis 54a of the deflector unit 22a. The at least one nozzle element 26a, 26a' has at least two nozzle openings 34a, 34a', 42a, 42a'. Each nozzle element 26a, 26a' has two nozzle openings 34a, 42a, 34a', 42a'. The nozzle openings 34a, 34a' are provided for discharging at least two different volume flows from the end region 46a, 46a' of the deflector unit 22a, in particular towards the glass to be cleaned, in the direction of the middle region 62a of the main extension of the deflector unit 22a. The nozzle opening 34a, 34a' of the two nozzle openings 34a, 34a', 42a, 42a', in particular the maximum inner diameter of the fluid channel in the nozzle opening 34a, 34a', is configured to be greater than the other nozzle opening 42a, 42a' of the two nozzle openings 34a, 34a', 42a, 42a', in particular greater than the maximum inner diameter of the fluid channel in the nozzle opening 42a, 42a'. The maximum length of the fluid channel in one of the two nozzle openings 34a, 34a', 42a, 42a' is configured to be greater than the maximum length of the fluid channel in the other nozzle opening 42a, 42a' of the two nozzle openings 34a, 34a', 42a, 42a'. The nozzle opening 34a, 34a' of the two nozzle openings 34a, 34a', 42a, 42a' is oriented with a maximum deviation of 60° towards the middle region 62a of the deflector unit 22a, preferably of the squeegee device 10a. The other nozzle opening 42a, 42a' of the two nozzle openings 34a, 34a', 42a, 42a' is oriented with a maximum deviation of 60° towards the end region 58a, 58a' of the squeegee strip unit 24a.

[0034] The nozzle element 26a, 26a' has a stop 44a, 44a' which limits the rotation of the nozzle element 26a, 26a' in the end region 46a, 46a' relative to the deflector unit 22a. The squeegee blade end cap 20a, 20a' has a stop face 60a, 60a' which limits the movement, in particular the rotation, of the stop 44a, 44a' of the nozzle element 26a, 26a'.

[0035] The nozzle elements 26a, 26a' have plug-in protrusions 36a, 36a'. The nozzle elements 26a, 26a' are arranged partially in the spoilers 28a, 28a'. The nozzle elements 26a, 26a' are arranged partially in the channel elements 30a within the deflector unit 22a. The nozzle elements 26a, 26a' are arranged partially in the channel segments 32a, 32a' of the channel elements 30a within the spoilers 28a, 28a' of the deflector unit 22a, respectively. The plug-in protrusions 36a, 36a' of the nozzle elements 26a, 26a' are arranged at least mostly in the channel segments 32a, 32a' of the channel elements 30a within the spoilers 28a, 28a' of the deflector unit 22a, respectively. It is conceivable that the nozzle elements 26a, 26a' are fitted directly in the spoilers 28a, 28a' guiding the wiping liquid on the end of the wiper device 10a.

[0036] Figure 3 The arrangement of the at least one wiper blade end cap 20a, 20a' in the end region 46a, 46a' of the deflector unit 22a is shown. The at least one wiper blade end cap 20a, 20a' at least partially covers the nozzle elements 26a, 26a'. The nozzle elements 26a, 26a' are arranged partially between the deflector unit 22a and the wiper blade end cap 20a, 20a'. The wiper blade end cap 20a, 20a' has a nozzle recess 90a, 90a'. The nozzle elements 26a, 26a' are arranged partially in the nozzle recess 90a, 90a' of the wiper blade end cap 20a, 20a'. The nozzle recess 90a, 90a' is dimensioned to introduce the nozzle elements 26a, 26a' without the plug-in protrusions 36a, 36a'.

[0037] The side of the nozzle element 26a, 26a' opposite the nozzle opening 34a, 34a', 42a, 42a' is arranged covered by the wiper end cap 20a, 20a'. The nozzle element 26a, 26a' is arranged at least partially within the wiper end cap 20a, 20a'. The at least one wiper end cap 20a, 20a' is provided for guiding the at least one nozzle element 26a, 26a'. The nozzle element 26a, 26a' has at least one guide element 38a, 38a' which in the coupled state is arranged mostly within the wiper end cap 20a, 20a', in particular within the inflow protrusion 64a, 64a'. By means of the guide element 38a, 38a' the nozzle element 26a, 26a' is configured to be guided, preferably linearly guided, preferably restricted linearly guided, by the wiper end cap 20a, 20a'. The guide element 38a preferably has an at least substantially T-shaped cross section perpendicular to the main extension of the nozzle element 26a, 26a'. The wiper end cap 20a, 20a' has an inflow protrusion 64a, 64a'. Said wiper end cap 20a, 20a' preferably has an inner cavity 66a, 66a' which is restricted. The inflow protrusion 64a, 64a' of the wiper end cap 20a, 20a' restricts a portion of the cavity 66a, 66a' of the wiper end cap 20a, 20a' which is in particular provided for accommodating the guide element 38a, 38a'.

[0038] It can be considered that the wiper device 10a has at least one bearing unit 68a, 68a' for movably supporting the nozzle element 26a, 26a' at least partially in the end region 46a, 46a'. It can be considered that the nozzle element 26a, 26a' is configured to be at least partially electrically adjustable and / or electrically heatable for adjustable fluid discharge from the end region 46a, 46a' of the deflector element 22a. With regard to these further features it is referred to the description of the embodiment with reference sign b.

[0039] Figure 4A method for assembling the wiper device 10a is shown. In at least one method step, in particular a moving step 70a, the wiper strip unit 24a is connected with the spring rails 18a, 18a', preferably by pushing in. In at least one method step, in particular a moving step 70a, the at least one deflector unit 22a, preferably the two spoilers 28a, 28a', is connected with the wiper strip unit 24a, preferably with the spring rails 18a, 18a', by pushing in. It is basically conceivable that in at least one method step, in particular a connecting step 72a, the channel unit 30a is connected with the deflector unit 22a. It is basically conceivable that in at least one method step, in particular a connecting step 72a, the channel unit 30a is connected on the outer side 80a of the deflector unit 22a via a clamping element and / or an adhesive connection with the deflector unit 22a. In at least one method step, in particular a connecting step 72a, the at least one nozzle element 26a, 26a' is at least partially inserted into the channel unit 30a. In at least one method step, in particular a connecting step 72a, the at least one nozzle element 26a, 26a' is connected with the channel unit 30a, preferably by means of a plug connection, preferably by means of a plug connection of at least one plug-in projection 36a, 36a' of the nozzle element 26a, 26a' and the channel unit 30a. In at least one method step, in particular an end step 74a, the at least one wiper blade end cap 20a, 20a' is inserted onto the at least one, preferably two, spring rails 18a, 18a'. In at least one method step, in particular an end step 74a, the at least one wiper blade end cap 20a, 20a' is connected with the at least one, preferably two, spring rails 18a, 18a' by means of a latching connection. In at least one method step, in particular an end step 74a, the at least one wiper blade end cap 20a, 20a' is connected with the spring rails with the accommodation of the guide element 38a, 38a' of the nozzle element.

[0040] In Figure 5 a further embodiment of the application is shown. The following description and the figures essentially limit themselves to the differences between the embodiments, wherein, with regard to components denoted identically, in particular with regard to components having the same reference numerals, reference can basically also be made to the other embodiments, in particular to the figures and / or the description of the Figures 1 to 4 embodiments. In order to distinguish the embodiments, the letter a is placed behind the reference numerals of the embodiments in Figures 1 to 4 . In the embodiments of Figure 5 , the letter a is replaced by the letter b.

[0041] Figure 5An alternative design of the wiper device 10b is shown. The channel unit 30b has a coupling element 82b. The coupling element 82b is provided for fluidically connecting the channel unit 30b with a fluid container. The channel unit 30b has two hose elements 84b, 84b'. The channel unit 30b, in particular the hose elements 84b, 84b', is arranged on the outer side 80b of the deflector plate unit 22b, in particular on the side facing away from the inflow face 86b, for fluidically guiding along the deflector plate unit 22b from the middle region 62b of the deflector plate unit 22b to the end region 46b, 46b' of the deflector plate unit 22b. The channel unit 30b, in particular the hose elements 84b, 84b', is connected with the deflector plate unit 22b on the outer side 80b of the deflector plate unit 22a by a clamping element and / or an adhesive connection. The hose elements 84b, 84b' are connected with the coupling element 82b in the middle region 62b. The hose elements 84b, 84b' each have a support unit 68b, 68b' on the end facing away from the coupling element 82b. It is in principle conceivable and technically unproblematic to configure the hose elements 84b, 84b' each without a support unit 68b, 68b' on the end facing away from the coupling element 82b and to insert the nozzle element 26b, 26b' onto the end of the hose element 84b, 84b'. Each one of the hose elements 84b, 84b' at least partially, preferably mostly, constitutes a channel section 32b, 32b'.

[0042] The at least one support unit 68b, 68b' is provided for an at least partially, preferably rotatable, support of the nozzle element 26b, 26b', preferably in the end region 46b, 46b'. The support unit 68b, 68b' is provided for receiving a plug-in projection 36b, 36b' of the nozzle element 26b, 26b'. The plug-in projection 36b, 36b' is rotatably supported by the support unit 68b, 68b'. The plug-in projection 36b, 36b' is connected with the channel unit 30b by the support unit 68b, 68b'. A structure element 76b, 76b' is arranged on the nozzle element 26b, 26b', preferably on the plug-in projection 36b, 36b'. The structure element 76b, 76b' is configured, for example but not limited to, as a tooth structure, preferably around the entire circumference of the plug-in projection 36b, 36b'. The structure element 76b, 76b' is provided for effecting a rotation of the nozzle element 26b, 26b'.

[0043] The nozzle element 26b, 26b' is configured to be at least partially electrically adjustable and / or electrically heatable for an adjustable fluid discharge from the end region 46b, 46b' of the deflector plate unit 22b.

[0044] The squeegee device 10b has at least one, preferably two, actuator elements 78b, 78b', preferably electric motors. On the actuator elements 78b, 78b' drive mechanism units 92b, 92b' are arranged. The at least one actuator element 78b, 78b' is provided for moving the nozzle element 26b, 26b'. The actuator element 78b, 78b' is provided for moving, preferably for changing the orientation of, the nozzle opening 34b, 42b, 34b', 42b' of the nozzle element 26b, 26b'. Preferably, the at least one actuator element 78b, 78b' exerts a force, preferably a rotational force, onto the at least one nozzle element 26b, 26b' via the structural element 76b, 76b'.

[0045] It is conceivable in principle that the nozzle opening 34b, 42b, 34b', 42b' is movably, in particular but not restrictively pivotably, supported on the nozzle element 26b, 26b' preferably additionally via an opening support element. Preferably, the at least one actuator element 78b, 78b' exerts a force, preferably a pivot force, onto the at least one nozzle opening 34b, 42b, 34b', 42b'.

[0046] The squeegee device 10b has at least one, preferably three, heating elements 88b, 88b', 88b'', preferably electric heating elements 88b, 88b', 88b''. The heating elements 88b, 88b', 88b'' are preferably arranged on the coupling element 82b and on the nozzle element 26b, 26b'. It is conceivable that at least one heating element 88b, 88b' is arranged on the support unit 68b, 68b'. It is conceivable that at least one heating element 88b, 88b', 88b'' is configured as part of the channel unit 30b, for example for cyclically heating the squeegee liquid.

[0047] It is conceivable that the nozzle element 26b, 26b' is at least partially arranged in an end of the spoiler 28b, 28b'. It is conceivable that the spoiler 28b, 28b' is movable along the main extension axis 54b of the deflector plate unit 22b. It is conceivable that the nozzle element 26b, 26b' is guided in a sliding manner in the squeegee end cap 20b, 20b' for the movability along the main extension axis 54b of the deflector plate unit 22b.

Claims

1. A scraper device comprising a baffle unit (22a, 22b), at least one nozzle element (26a, 26a', 26b, 26b'), and at least one channel unit (30a, 30b), the channel unit being for fluid connection with the at least one nozzle element (26a, 26a', 26b, 26b'), characterized in that, - Viewed along the first main extension axis (54a, 54b) of the deflector units (22a, 22b), the at least one nozzle element (26a, 26a', 26b, 26b') is arranged on the first end region (46a, 46a', 46b, 46b') of the deflector units (22a, 22b), wherein the first end region (46a, 46a', 46b, 46b') of the deflector units (22a, 22b) extends beyond the deflector units (22a, 22b) by a maximum extension range of 20%. - The scraper device has at least one scraper strip unit (24a, 24b) and at least one scraper blade end cap (20a, 20a', 20b, 20b'). Viewed along the second main extension axis (56a, 56b) of the scraper strip unit (24a, 24b), the at least one scraper blade end cap is arranged in the second end region (58a, 58b) of the scraper strip unit (24a, 24b), and the at least one scraper blade end cap is configured to guide the at least one nozzle element (26a, 26a', 26b, 26b'). - wherein the at least one scraper end cap (20a, 20a', 20b, 20b') has a nozzle recess (90a, 90a'), and the at least one nozzle element (26a, 26a', 26b, 26b') is partially arranged in the nozzle recess (90a, 90a') of the at least one scraper end cap (20a, 20a', 20b, 20b'). - Each of the nozzle elements (26a, 26a', 26b, 26b') has at least two nozzle openings (34a, 34a', 42a, 42a', 34b, 34b', 42b, 42b') to discharge at least two different volumetric flows from the first end regions (46a, 46a', 46b, 46b') toward the middle region (62a, 62b) of the main extension range of the guide vane unit (22a, 22b), wherein at least one nozzle opening of the nozzle openings (34a, 34a', 42a, 42a', 34b, 34b', 42b, 42b') is movably supported on the at least one nozzle element (26a, 26a', 26b, 26b').

2. The scraper device according to claim 1, characterized in that... At least one scraper end cap (20a, 20a', 20b, 20b') at least partially covers the deflector unit (22a, 22b) in the first end region (46a, 46a', 46b, 46b') and at least partially covers the nozzle element (26a, 26a', 26b, 26b').

3. The scraper device according to claim 1, characterized in that, The channel units (30a, 30b) are arranged on the outer side (80a, 80b) of the guide vane units (22a, 22b) for guiding fluid along the guide vane units (22a, 22b) from the middle region (62a, 62b) of the guide vane units (22a, 22b) to the first end region (46a, 46a', 46b, 46b') of the guide vane units (22a, 22b).

4. The scraper device according to any one of claims 1 to 3, characterized in that... At least one support unit (68a, 68a', 68b, 68b') is provided to enable the nozzle elements (26a, 26a', 26b, 26b') to be at least partially movably supported in the first end region (46a, 46a', 46b, 46b').

5. The scraper device according to any one of claims 1 to 3, characterized in that, The nozzle elements (26a, 26a', 26b, 26b') are configured to be at least partially electrically adjustable and / or electrically heated in order to allow adjustable fluid discharge from the first end regions (46a, 46a', 46b, 46b') of the baffle units (22a, 22b).

6. The scraper device according to any one of claims 1 to 3, characterized in that, The nozzle elements (26a, 26a', 26b, 26b') have stops (44a, 44b) that restrict the rotation of the nozzle elements (26a, 26a', 26b, 26b') relative to the baffle units (22a, 22b) in the first end regions (46a, 46a', 46b, 46b').

7. A scraper system having scraper arms (12a, 12b) and scraper devices (10a, 10b) according to any one of claims 1 to 6.

8. A method for assembling a scraper device (10a, 10b) according to any one of claims 1 to 6.

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