Windshield wiper assembly

Abstract

TITLE: Wiper Device A wiper device (10a) comprising at least one wiper unit (12a) having at least one fluid conduit (14a) for conducting a fluid and at least one distribution element (16a) for distributing the fluid onto an object to be cleaned. The distribution element (16a) has a distribution orifice (18a) in an end surface area (20a) of the wiper unit (12a). Figure 2

Description

Title of the invention: Windshield wiper device FIELD OF INVENTION

[0001] The present invention relates to a windshield wiper device, a windshield wiper with such a windshield wiper device and a vehicle equipped with the windshield wiper device and a method for managing this windshield wiper device.

[0002] As a preliminary remark, to simplify the description, the double conjunction "and / or" is replaced by the conjunction "or" having, at the same time, the function of "inclusive or" and "exclusive or". STATE OF THE ART

[0003] A wiper device is already known comprising a wiper unit with a conduit for conducting a fluid (liquid or air) with at least one distribution element for distributing the fluid onto an object to be cleaned.

[0004] DESCRIPTION AND ADVANTAGES OF THE INVENTION

[0005] The invention relates to a wiper device comprising at least one wiper unit having at least one liquid conduit for conducting a liquid and at least one distribution element for distributing the liquid onto an object to be cleaned, this device being characterized in that the distribution element comprises at least one distribution orifice in an end surface area of ​​the wiper unit.

[0006] In other words, the invention relates to a distribution element having at least one distribution orifice in an end surface area of ​​the wiper unit. The distribution element is specifically designed to distribute fluid arriving through the line. The line is preferably tubular, pipe-shaped, or of a similar shape.

[0007] The term "equivalent fluid" refers to a cleaning liquid, for example, water or a similar liquid. Alternatively, the liquid or water may also be a liquid / air mixture. For example, the distribution element is provided, alternatively or additionally, to distribute air over the object, in particular to dry the object.

[0008] To simplify the presentation of the invention in the description and claims, only the term "liquid" will be used, encompassing the different meanings presented above.

[0009] The wiper unit includes, in particular, a wiping blade. The wiping blade is, for example, a rubber lip or a similar means. The wiper unit includes at least one mounting rail. The mounting rail is Removable, preferably removable without damage to the retaining rail. The wiper unit includes at least one elastic rail or similar means for attaching the wiper blade to the retaining rail, preferably by a form-fit connection. A retaining rail shaped like a deflector element may also be considered. The wiper assembly includes a wiper arm adapter by which the wiper unit, including the retaining rail, is connected to the wiper arm, including the wiper arm adapter.

[0010] Preferably, the wiper assembly is applied to a vehicle, which may be a road vehicle, for example, a car or a truck, or a railway vehicle such as a train, a railcar, a tram, or a similar vehicle, or even a watercraft such as, for example, a boat, a ship, or similar equipment. The vehicle could also be considered as a cleaning machine, in particular a cleaning robot, for example, a wiping robot or a vacuum robot. Preferably, the wiper assembly is part of a vehicle wiper. The wiper is part of a vehicle wiping system. The guide is preferably made in one piece with the retaining rail.The expression "in one piece" means that it is a connection at least by material, for example, made by a welding process, a bonding process, an injection process or other technically interesting or advantageous process or in the form of a part, for example, obtained by casting or manufacturing by an injection process with one or more components and advantageously a part obtained from a single blank.

[0011] Alternatively, the liquid conduit may differ from the retaining rail. Preferably, the inner cross-section of the conduit is circular, this inner cross-section preferably lying in a plane perpendicular to the principal axis of extension of the conduit. The term "principal axis" of an object is, in particular, the axis parallel to the longest edge of the smallest geometric parallelepiped that closely surrounds the object. Alternatively, the inner cross-section of the conduit may be polygonal. Preferably, the outer cross-section of the conduit is circular or polygonal, particularly for a conduit manufactured separately from the retaining rail. The outer cross-section lies, in particular, in a plane perpendicular to the principal axis of extension of the conduit. The principal axis of extension of the retaining rail is, preferably, at least practically parallel to the principal axis of extension of the conduit.The expression "mainly parallel" refers to the orientation of a direction relative to a reference direction, especially in a plane, and this direction does not deviate from the reference direction. than an angle of less than 8°, advantageously less than 5° and in a particularly advantageous way, less than 2°.

[0012] Preferably, the distribution element is different from the conduit. Alternatively, the distribution element can be made in one piece with the hose, particularly the fluid hose, preferably with a distribution orifice at the free end of the hose. The distribution element is, for example, a spray nozzle or other technically advantageous distribution element. The main extension axis of the wiper unit is preferably at least practically parallel to the main extension axis of the retaining rail. Alternatively, the retaining rail can be at least partially curved or partially straight along its longitudinal extension. The end surface area is located, in particular, at the free end of the wiper unit, preferably along the longitudinal extension of the wiper unit.Preferably, the end surface area of ​​the wiper unit is formed by a top surface delimiting the wiper unit along its longitudinal extension. Alternatively, the end surface area can be formed by the top surface of the wiper unit, which is at least segmentally curved, or at least segmentally flat, or by another top surface having any structure whatsoever.

[0013] Preferably, the distribution element is provided on the outer surface delimiting the wiper unit in the longitudinal direction. Preferably, the distribution element is provided at the free end of the pipe. The liquid (or fluid) distribution direction of the distribution element, in particular, the principal axis of the distribution orifice direction of the distribution element, is preferably in the longitudinal direction of the wiper unit. Alternatively, a liquid distribution direction of the distribution element, in particular the principal axis of the distribution orifice direction of the distribution element, may be considered, being at least practically parallel to the principal extension axis of the retaining rail or pipe.Alternatively, it can also be considered that the liquid distribution direction of the distribution element, in particular the main axis of the distribution orifice direction of the distribution element, is inclined relative to the main extension axis of the retaining rail or the main extension axis of the pipe. The liquid distribution direction of the distribution element corresponds, in particular, to the main axis of the distribution orifice direction of the distribution element.

[0014] The implementation of the windshield wiper device according to the invention makes it possible to have a wiper unit that is particularly flexible in its cleaning application function. Advantageously, the object to be cleaned faces the area of the end surface of the wiper unit. Advantageously, the cleaning of an object facing the area of ​​the end surface of the wiper unit is carried out simply and constructively.

[0015] According to another feature, the distribution element is designed to distribute the fluid in the longitudinal direction of the wiper unit onto an object other than a window of the vehicle. The distribution element is specifically designed to spray the fluid in the longitudinal direction of the wiper unit. The vehicle includes, in particular, a viewing window. The viewing window is preferably the windshield of the vehicle. Alternatively, the vehicle's viewing window is the rear window or any other window of the vehicle that is technically advantageous. In particular, the wiper assembly, especially the wiper unit, is designed to rotate about an axis of rotation, preferably to clean the vehicle's window.The distribution element distributes the fluid at least practically radially over the object, particularly with regard to the rotation of the wiper unit around the axis of rotation. The expression "practically radial" here refers to the orientation of a direction with respect to a radial axis, particularly in a plane; the direction deviates from the radial axis by less than 8°, advantageously less than 5°, and particularly advantageously less than 2°.

[0016] Alternatively, the distribution element is designed to distribute the liquid along a direction on the object that is inclined, in particular at an angle other than a right angle, to the radial axis of rotation of the wiper assembly, in particular the wiper unit, rotating about the axis of rotation. It can also be envisaged that the main extension axis of the wiper unit is at least practically parallel or inclined, preferably at an angle other than a right angle, to the radial axis of rotation of the wiper unit about the axis of rotation. Advantageously, the wiper assembly is particularly flexible to perform the cleaning function. Advantageously, the liquid is distributed by the wiper unit, in particular the distribution element, in a particularly flexible manner and over a large area.

[0017] Furthermore, the distribution element is designed to distribute the liquid in the longitudinal direction from the wiper unit onto the object, which is a lidar device. The lidar device is, in particular, at least one part, preferably at least one subset, of at least one lidar system, in particular a lidar sensor component. The lidar device may, in particular, be the entire lidar system, in particular the entire lidar sensor component. The lidar device is, for example, provided on the vehicle to detect the environment, in particular for autonomous driving. or on construction sites to measure structures, to scan 3D contours, or in laboratories for research. The lidar device includes at least one lidar sensor element, specifically at least one lidar sensor element for capturing or measuring objects. The lidar device is intended for application to a vehicle; in particular, the lidar device may be integrated into the vehicle. Retrofitting the lidar device to the vehicle is also possible. For example, the lidar device may be installed in addition to an existing lidar system already on the vehicle. Preferably, the lidar device is intended, in particular, as part of the lidar system for capturing objects, especially in the vehicle's environment. Preferably, the lidar device captures objects with the vehicle, preferably in the roof area, the front area, or the rear area of ​​the vehicle.In particular, the vehicle can be equipped with several lidar devices. The lidar device is positioned at a different distance from the vehicle's windshield. Advantageously, the windshield wiper system is used to clean the lidar device. Advantageously, the windshield wiper system also allows for the simultaneous cleaning of various objects.

[0018] According to another feature, the distribution element is provided on an outer circular area of ​​the wiper unit. The outer circular area is the trajectory of the outermost point of the wiper unit generated in particular by the rotation of the wiper device, preferably the wiper unit, for example, during the wiping movement around the axis of rotation.The maximum extension of the outer circular area of ​​the wiper unit along the radial axis extending from the path of the outermost point of the wiper unit relative to the rotation of the wiper unit around its axis of rotation, preferably for a wiping motion of the wiper unit, corresponds, preferably, to a maximum of 20%, preferably to a maximum of 10%, and particularly preferably, to a maximum of 5% of the distance between the outermost point of the wiper unit and the axis of rotation. Advantageously, this allows for the distribution of a liquid (fluid) over a particularly large area.

[0019] According to another feature, the distribution element is designed to distribute the liquid in the longitudinal direction of the wiper unit, outwards. Preferably, the distribution element projects the liquid outwards in the longitudinal direction of the wiper unit onto the object to be cleaned. It is possible to consider that the distribution unit distributes the liquid at least practically radially outwards. Advantageously, the liquid can be distributed over a particularly large area.

[0020] According to another feature, the wiper unit includes an end cap with the distribution element. The end cap is preferably attached to the retaining rail, in particular in a removable manner and preferably in a removable manner without damage. The end cap terminates the wiper unit at its free end along the longitudinal extension of the wiper unit. In particular, the end cap has an outer surface that forms the outer surface delimiting the wiper unit along its longitudinal extension. The end surface area is provided, in particular, on the end cap. Advantageously, the distribution element can be checked very easily when the end cap is detached from the retaining rail. Advantageously, the distribution element can be replaced particularly easily, especially in the event of damage.A commercially available windshield wiper equipped with a hose can be fitted with the end cap to extend its cleaning function.

[0021] According to another feature, the wiper blade device includes a fluid distribution control unit for distributing the fluid onto the object according to the rotational position of the wiper blade unit, by releasing or cutting off the distribution. The fluid distribution control unit can also be implemented mechanically or at least partially electrically. The fluid distribution control unit includes at least one control or regulation unit for controlling or regulating the distribution of the fluid by the distribution element. The control or regulation (or adjustment) unit includes, in particular, at least one processor and one memory element, as well as an operating program stored in the memory. The memory element is preferably a digital memory medium, for example, a hard drive or a similar device.The control or regulation unit of the fluid distribution control unit is formed by a control or regulation unit for a wiping system, specifically for the windshield wiper, which includes the wiper blade assembly. The wiper blade assembly includes a closing element, for example, a closing cap, a valve, including a check valve, or a similar means that releases or blocks the fluid distribution onto the object depending on the rotational position of the wiper blade assembly. The closing element is designed to, in at least one operating state, block or allow the fluid to pass. Alternatively, the fluid distribution by the distribution element can be blocked or released by means of a closing or sealing element controlled either mechanically or by the control or regulation unit.The closing or sealing element is provided on the distribution element, for example, on the distribution orifice of the distribution element.

[0022] The closing or sealing element can also be installed on the pipe or in another technically advantageous position. The wiping system, in particular the windshield wiper or wiper blade assembly, includes a sensor to determine the rotational speed of the wiper blade unit. The fluid distribution control unit commands or regulates the fluid distribution, in particular, based on the signal provided by the sensor. Alternatively, or in addition, a user can manually block or release the fluid distribution by the distribution element, in particular, using the closing or sealing element. The lidar device includes at least one other sensor to detect fouling of the lidar device.Liquid distribution via the dispensing element can be controlled or regulated using a signal from another sensor, for example, a liquid dispensing control unit. This allows for targeted cleaning of the object. Unnecessary liquid distribution by the dispensing element is avoided in a particularly simple and efficient manner. Furthermore, the cleaning process is particularly economical in terms of liquid consumption.

[0023] According to another feature, the wiper unit comprises at least one other conduit, in particular, different from the conduit described above, for supplying the fluid, and at least one other distribution element for distributing the fluid onto another object to be cleaned, in particular, a vehicle window as previously described. This other fluid conduit is preferably in the form of a pipe, tube, or similar means. This other conduit is, for example, made in one piece with the retaining rail or as a separate piece, in particular, different from the retaining rail. The inner cross-section of this other conduit is circular. The inner cross-section of this other conduit is preferably in a plane perpendicular to the principal axis of extension of this other conduit. Alternatively, the inner cross-section of the other conduit is polygonal.The outer section of the other pipe is circular or polygonal, particularly if this other pipe is separate from the support rail. The outer section is made, in particular, in a plane perpendicular to the main axis of extension of the other pipe. The main axis of extension of the other pipe is, preferably, at least practically parallel to the main axis of extension of the pipe or the main axis of extension of the support rail.

[0024] At least one other distribution element includes at least one transverse distribution orifice, preferably at least practically perpendicular to the longitudinal extension of the wiper unit, in particular the main extension axis of the retaining rail or other conduit.

[0025] Preferably, the distribution orifice of at least one other distribution element is transverse, preferably at least practically perpendicular to the distribution orifice of at least one other distribution element. At least one other distribution element is made in one piece with the other fluid line or is different from the other fluid line. For example, the other distribution element may be formed by a recess, preferably in the outer surface of the other fluid line. In one embodiment, the other distribution element is in the form of a spray nozzle or any other technically advantageous distribution element. Alternatively, the wiper unit comprises only the line, and in particular, the line supplies the fluid to the distribution element and to the other distribution element.Advantageously, one object and another object can be cleaned independently with the wiper attachment. Advantageously, the wiper attachment is particularly flexible, allowing for targeted and efficient cleaning of different objects.

[0026] According to another feature, the distribution element is adjustablely mounted in the end surface area of ​​the wiper unit. It is also possible to adjust the direction of fluid distribution of the distribution element, and thus, in particular, the main axis of the direction of the distribution orifice of the distribution element, the distribution pressure, in particular the spray pressure, the distribution pattern, in particular the spray pattern, the angular distribution range, in particular the angular spray range, or similar features of the fluid distribution element. The distribution element can preferably be adjusted manually by the user, by a mounting, or by a control or regulating unit. For example, the distribution element is mounted or made rotatably for adjustment or includes an operating element, for example, a slide, a knob, or similar means.The wiper unit, particularly the distribution element, is adapted in a particularly simple and targeted manner to meet various cleaning requirements. Advantageously, the wiper assembly is especially flexible in its use and effective for cleaning lidar devices.

[0027] According to another feature, the aforementioned windshield wiper is provided with a wiper blade device according to the invention. The wiper will serve to clean a targeted object located away from the vehicle's window or windshield.

[0028] According to another feature, the wiper includes a wiper arm equipped with the wiper blade device, the wiper arm having at least two supply lines to supply the line and in particular the other line already mentioned above from the wiper blade unit.

[0029] Preferably, the supply line of the two supply lines is connected to the first line by a fluid connection. Preferably, the other supply line of these two supply lines is connected to the other line by a fluid connection. Alternatively, the wiper arm has only one supply line for the first line and one for the other line. The wiper system, in particular the wiper blade, the pump, or a compressor, is designed to supply the fluid through the distribution element or the other distribution element. The pump is in the form of a high-pressure pump. In particular, the pump or compressor supplies the fluid through the two supply lines to the first line or the other line.It can also be considered that the liquid distribution control unit, in particular the control or regulation unit, ensures the liquid distribution by controlling or regulating the compressor or pump by releasing or blocking the distribution.

[0030] According to another feature, the line, and in particular the supply line that feeds the other line, is equipped with a compressor to supply air to the other line, and in particular to the other supply line of that other line, to supply it via the pump carrying cleaning fluid, for example, water or a similar fluid. This ensures a particularly smooth and at the same time reliable cleaning function of the windshield wiper.

[0031] According to another feature, in particular, the vehicle includes a windshield wiper assembly according to the invention and the object which, as already mentioned, is a lidar device. Preferably, the vehicle includes a windshield wiper with a wiper assembly. The vehicle may also be equipped with the wiping system. The wiping system preferably includes at least the windshield wiper or another wiper. This other wiper is preferably made without the wiper assembly according to the invention. Alternatively, this other wiper can also be equipped with a wiper assembly according to the invention. Preferably, the lidar device is connected to the vehicle. The lidar device is provided at least partially on the exterior side of the vehicle.The lidar device is, for example, attached to the vehicle's roof, in the frontal area of ​​the vehicle, such as on the hood, or in another technically advantageous location. The lidar device is also integrated into the vehicle, particularly into the roof. Alternatively, a removable lidar device can be installed, preferably without damaging the vehicle, especially the roof. Advantageously, the vehicle allows for particularly reliable environmental monitoring.

[0032] According to another feature, the invention relates to a method for managing a windshield wiper device, in particular a wiper device The invention relates to a windshield wiper system. In a cleaning step, liquid is distributed by the distribution element of the wiper assembly onto a lidar device. The wiper assembly, particularly the wiper blade, rotates around its axis of rotation, preferably during the cleaning step. The wiper assembly is driven by a drive unit, for example, an electric motor or a similar means, to rotate around its axis of rotation, preferably in a wiping motion. The wiping system, particularly the wiper blade or the wiper assembly, may include the drive unit. The wiper assembly is driven by the drive unit to move across the vehicle's window / windshield for cleaning.In particular, the wiper assembly is designed to clean a window or the windshield of the vehicle with a maximum angular range between two endpoints, following an alternating rotating motion. The maximum angular range is preferably less than 180° and greater than 90°. Alternatively, another technically advantageous maximum angular range for the pivoting of the wiper assembly may also be considered.

[0033] Preferably, during the wiping motion, particularly over virtually the entire maximum angular range, liquid is distributed by at least one other distribution element, preferably onto the vehicle's window. In this distribution, liquid is distributed over at least virtually the entire maximum angular range, preferably over at least 90% and particularly preferably over at least 95% of the entire maximum angular range. Alternatively, the other distribution element distributes liquid during the wiping motion only in segments or at least virtually no liquid over the entire maximum angular range. Preferably, the distribution element distributes liquid only in a partial area of ​​the maximum angular range. Alternatively, liquid is distributed by the distribution element over at least virtually the entire maximum angular range.Preferably, in the partial area of ​​the maximum angular range, in which liquid is distributed, in particular by the distribution element, the direction of liquid distribution by the distribution element is preferably that of the main axis of the direction of the distribution orifice of the output element towards the lidar device.

[0034] The windshield wiper device according to the invention, the windshield wiper according to the invention, the vehicle according to the invention or the method according to the invention are not limited to the applications and embodiments described above. Brief description of the drawings

[0035] The present invention will be described in more detail below with reference to embodiments of a windshield wiper device according to the invention shown in the accompanying drawings, in which:

[0036] [Fig-1] vehicle comprising a lidar device and a windshield wiper according to the invention by a simplified perspective representation,

[0037] [Fig.2] Part of the vehicle with the windshield wiper according to the invention in schematic front view,

[0038] [Fig.3] Perspective view of an end cap of a wiper blade device according to the invention,

[0039] [Fig.4] Sectional view of a portion of the windshield wiper device according to the invention,

[0040] [Fig.5] Schematic development of the method according to the invention for the operation of the windshield wiper device,

[0041] [Fig.6] Sectional view of an alternative embodiment of the wiper device according to the invention.

[0042] DESCRIPTION OF EMBODIMENT METHODS OF THE INVENTION

[0043] Figure 1 shows a vehicle 36a. Vehicle 36a is a vehicle, in particular a car. Alternatively, vehicle 36a could also be a truck or a similar vehicle, or a railway vehicle such as a train, tractor, tram, or other similar vehicle, or a watercraft such as a boat, ship, or other vessel. Vehicle 36a could also be considered a cleaning vehicle, in particular a cleaning robot, for example, a mopping robot or a vacuum robot.

[0044] The vehicle 36a includes an object in the form of a lidar device 24. The lidar device 24 is connected to the vehicle 36. The lidar device 24 is provided, at least in part, on the outer side of the vehicle 36a. The lidar device 24a is installed on the vehicle 36a in a position different from that of the window or windshield 22a of the vehicle 36a. The lidar device 24a is installed on the roof 42a of the vehicle 36a. Alternatively, the lidar device 24a is provided in another position on the vehicle that may be technically advantageous. The lidar device 24a is integrated into the vehicle 36a, in particular into the roof 42a of the vehicle. Alternatively, a lidar device 24a could also be considered, preferably removable without damage, on the vehicle 36a, in particular the roof 42a of the vehicle.

[0045] The lidar device 24a is designed to capture the environment, particularly for autonomous driving. The lidar device 24a includes, for example, a lidar sensor element (not shown here). The lidar device 24a is designed, particularly with at least one lidar sensor element, to capture or measure objects, especially in the environment of the vehicle 36a.

[0046] The vehicle 36a includes a wiper system 50a comprising a wiper 30a and another wiper 52a. The wiper 30a includes a wiper blade assembly 10a. The wiper blade assembly 10a includes at least one wiper blade unit 12a. The wiper blade unit 12a includes a wiper blade 44a. The wiper blade 44a is in the form of a rubber lip. Alternatively, the wiper blade 44a may be a blade 44a different from the wiper lip. The wiper blade unit 12a includes at least one retaining rail 46a. The wiper blade 44a is preferably installed removably, in particular removably without damage, on the retaining rail 46a. The wiper unit 12a includes two spring-loaded rails 48a for attaching the wiper blade 44a to the retaining rail 46a, preferably by means of a shaped connection. The retaining rail 46a is shaped like a deflector element.The wiper 30a comprises at least one wiper arm 54a with a wiper blade adapter 56a. The wiper blade assembly 10a is provided on the wiper arm 54a. The wiper arm 54a is connected by the wiper blade adapter 56a to the wiper blade assembly 10a, specifically the wiper blade unit 12a.

[0047] The wiper system 50a includes a drive unit 66a. The drive unit 66a drives the windshield wiper 30a, in particular the wiper blade assembly 10a or the other wiper 52a, to move, preferably to pivot about a respective axis of rotation. The drive unit 66a is in the form of an electric motor or a similar means. The drive unit 66a drives the windshield wiper 30a, in particular the wiper blade assembly 10a or the other wiper 52a, to sweep and clean the vehicle's window or windshield 22a.

[0048] The wiper unit 12a includes at least one fluid conduit 14a (see [Fig. 4]). The wiper unit 12a includes at least one distribution element 16a for distributing the fluid onto an object to be cleaned. The distribution element 16a is designed to distribute the fluid through the conduit 14a. The fluid is a cleaning fluid, for example, water or a similar liquid. The term "fluid" is used in the sense of fluid and thus includes air. The fluid conduit 14a is tubular, pipe-shaped, or a similar shape. The distribution element 16a distributes the fluid in the longitudinal direction from the wiper unit 12a onto the object to be cleaned, which is other than the window or windshield 22a of the vehicle 36a. The distribution element 16a is intended to distribute the liquid in the longitudinal direction from the wiper unit 12a onto the object which is in the form of the lidar device 24a.The distribution element 16a projects in the longitudinal direction of the wiper unit 12a. The glass 22a is the windscreen of the . vehicle 36a. Alternatively, the window 22a of the vehicle could also be the rear window or another window 22a of the vehicle that would be technically interesting.

[0049] The liquid line 14a is made in one piece with the retaining rail 46a. Alternatively, the liquid line 14a can also be made as a separate component, in particular different from the retaining rail 46a. The inner cross-section of the line 14a is circular. The inner cross-section of the line 14a lies in a plane perpendicular to the main extension of the line 14a. Alternatively, the inner cross-section of the line 14a may have a polygonal shape. The main extension axis 60a of the retaining rail 46a is at least practically parallel to the main extension axis of the line 14a.

[0050] The wiper unit 12a includes another conduit 28a, notably different from conduit 14a, for a liquid (the liquid is taken in a general sense including air). The wiper unit 12a includes several other distribution elements, not shown here, for distributing the liquid onto another object to be cleaned, in particular, a window 22a of the vehicle. The liquid passing through the other conduit 28a is preferably a cleaning liquid, for example, water. Alternatively, the wiper unit 12a may also be provided with only another distribution element for distributing the liquid onto the other object, in particular the window 22a of the vehicle.

[0051] The other conduit 28a is tubular, pipe-shaped. The other conduit 28a is made in one piece with the retaining rail 46a. Alternatively, the other conduit 28a is in the form of a separate component, in particular different from the retaining rail 46a. The internal cross-section of the other conduit 28a is circular.

[0052] The inner section of the other pipe 28a lies in a plane perpendicular to the main extension axis of that other pipe 28a. Alternatively, the inner section of the other pipe 28a has a polygonal shape. The main extension axis of the other pipe 28a is at least practically parallel to the main extension axis of the pipe 14a or the main extension axis 60a of the retaining rail 46a.

[0053] The wiper arm 54a includes at least two supply lines 32a, 34a for supplying fluid to line 14a and the other line 28a of the wiper unit 12a. The supply line 32a of these two lines 32a, 34a is connected to line 14a by a fluid connection. The other supply line 34a of these two supply lines 32a, 34a is connected to the other line 28a by a fluid connection. Alternatively, the wiper arm 54a could also be configured to have only one supply line 32a for line 14a and the other line 14b. The wiping system 54a, in particular the wiper 30a, includes a pump or similar means for supplying fluid through the distribution element 16a and the other distribution elements. The conduit transfers the liquid through the two supply lines 32a, 34a, line 14a or the other line 28a.

[0054] Alternatively, particularly if the liquid (fluid) is air, the wiping system 50a, and in particular the wiper 30a, includes a compressor. Alternatively, the line 14a, and in particular the supply line 32a connected to the line 14a, can also be equipped with a compressor to supply air; the other line, in particular the other supply line 34 for the other line 28a, includes a pump to supply a cleaning fluid, for example, water or a similar fluid.

[0055] The wiper arm 54a includes at least one cable 70a for electrical connection to an electrical power source (not shown) equipped with a heating unit (not shown) for the wiper 30a, in particular for the wiper blade assembly 10a. The heating unit is, for example, at least partially installed on the wiper arm 54a or at least partially on the wiper blade assembly 10a. The heating unit includes, in particular, a heating element. The heating element may be a heating wire or a similar means. The heating unit heats the wiper blade assembly 10a or the wiper arm 54a, in particular the two supply lines 32a, 34a, the line 14a or the other line 28a, and thus heats, in particular, the fluid. We can also consider the 30a wiper, in particular the 10a wiper blade device, without a heating unit or without the 70a cable.

[0056] The other distribution elements each have at least one distribution orifice oriented transversely, preferably at least practically perpendicular to the longitudinal extension of the wiper unit 12a, in particular the main extension axis 60a of the retaining rail 46a or the main extension axis of the other conduit 28a. The distribution orifices of the other distribution elements are transverse, preferably at least practically perpendicular to the distribution orifice 18a of the distribution element 16a. The other distribution elements are made in one piece with the other conduit 28a or are different from the other conduit 28a. For example, the other distribution elements may consist of a recess, preferably in the outer surface of the other conduit 28a.Alternatively, the other distribution elements are each implemented in the form of a spray nozzle or a similar device.

[0057] The distribution element 16a differs from the conduit 14a. Alternatively, the distribution element 16a can be made in one piece with the conduit 14a, particularly with respect to the conduit 14a, preferably with a distribution port at the free end of the conduit 14a. The distribution element 16a is in the form of a spray nozzle. The distribution element 16a can also be made in the form of another distribution element 16a, which may be technically advantageous. The main extension axis 58a of the wiper unit 12a is at least practically parallel to the main extension axis 60a of the retaining rail 46a. The retaining rail 46a has, at least partially along its longitudinal extension, a curved or at least partially straight profile.

[0058] The distribution element 16a has at least one distribution orifice 18a. The distribution orifice 18a is provided in an end surface area 20a of the wiper unit 12a (see Figures 2 and 3). The end surface area 20a is at the free end 62a of the wiper unit 12a, preferably along the longitudinal extension of the wiper unit 12a. The end surface area 20a of the wiper unit 12a is formed by the upper or outer surface 64a delimiting the wiper unit 12a along its longitudinal extension. The upper surface 64a which forms the end surface area 20a of the wiper unit 12a is, for example, a simple surface at least curved by segments or at least flat by segments or any other structure.The distribution element 16a is provided on the upper surface 64a that defines the wiper unit 12a in the longitudinal direction. The distribution element 16a is provided at the free end of the pipe 14a. The direction of liquid (or fluid) distribution of the distribution element 16a is, in particular, the main axis of the distribution orifice 18a of the distribution element 16a in the longitudinal direction of the wiper unit 12a, in particular in the longitudinal direction of the retaining rail 46a or the liquid pipe 14a. It can also be considered that the liquid distribution direction of the distribution element 16a, in particular the main axis of the direction of the distribution orifice 18a of the distribution element 16a is at least practically parallel to the main extension axis 60a of the retaining rail 46a or the main extension axis of the pipe 14a.Alternatively, a liquid distribution direction of the distribution element 16a can also be considered, in particular the main axis of the direction of the distribution orifice 18a of the distribution element 16a which makes an angle with respect to the main extension axis 60a of the retaining rail 46a or the main extension axis of the pipe 14a. The liquid distribution direction of the distribution element 16a corresponds to the main axis of the distribution orifice 18a of the distribution element 16a.

[0059] The other wiper blade 52a does not have a distribution element with a distribution orifice in the area of ​​the end surface of the wiper blade unit of this other wiper blade 52a. Alternatively, the other wiper blade 52a may also be provided with a distribution element with an orifice distribution in the area of ​​the end surface of the wiper unit of the other wiper 52a.

[0060] The wiper assembly 10a, in particular the wiper unit 12a, is designed to pivot about the axis of rotation to clean the vehicle's windshield 22a. The distribution element 16a is designed to distribute the fluid at least practically radially over the object, in particular with respect to the rotation of the wiper unit 12a about the axis of rotation. Alternatively, the distribution element 16a distributes the fluid in a direction over the object that is inclined, in particular at an angle other than a right angle, with respect to the radial axis of rotation of the wiper assembly 10a, in particular the wiper unit 12a, pivoting about the axis of rotation. The main extension axis 58a of the wiper unit 12a is at least practically parallel to the radial axis of rotation of the wiper unit 12a pivoting around the axis of rotation.Alternatively, a main extension axis 58a of the wiper unit 12a can be considered, preferably inclined at an angle other than a right angle to the radial axis of rotation of the wiper unit 12a around the axis of rotation. The distribution element 16a distributes the fluid in the longitudinal direction of the wiper unit 12a. The distribution element 16a projects the fluid in the longitudinal direction of the wiper unit 12a, outwards onto the object to be cleaned. A distribution element 16a can also be considered to distribute the fluid at least practically radially outwards.

[0061] The distribution element 16a is in the outer circle area of ​​the wiper unit 12a. The outer circle area is an area generated in particular by the rotation of the wiper device 10a in particular of the wiper unit 12a, for example, during a wiping movement and which is the trajectory of the outermost point of the wiper unit 12a. The maximum extension of the area of ​​the outer circle of the wiper unit 12a along the radial axis from the path of the outermost point of the wiper unit 12a corresponds at most to 20%, preferably at most to 10% and particularly preferably at most to 5% of the distance of the outermost point of the wiper unit 12a from the axis of rotation.

[0062] The wiper unit 12a includes an end cap 68a equipped with the distribution element 16a. The end cap 68a is attached to the retaining rail 46a, in particular in a removable manner and preferably removable without damage. The end cap 68a closes the wiper unit 12a at its free end 62a of the wiper unit 12a according to the longitudinal extension of the wiper unit 12a. The end cap 68a has An outer surface formed by the outer surface 64a delimiting the wiper unit 12a along its longitudinal extension. The end surface area 20a is provided on the end cap 68a.

[0063] The wiper blade device 10a includes a fluid distribution control unit 26a for releasing or blocking the distribution of fluid onto the object depending on the rotational position of the wiper blade unit 12a. The fluid distribution control unit 26a can be purely mechanical or, at least partially, electrical. For example, a fluid distribution control unit 26a can be a control or regulation unit (not shown here) for controlling or regulating the distribution of fluid by the distribution element 16a. The control or regulation unit includes at least one processor and one memory element, as well as an operating program stored in the memory element. The memory element is preferably digital memory, for example, a hard drive or a similar device.One can also consider a control or regulation unit for the liquid distribution control unit 26a formed by a control or regulation unit for the wiping system 50a.

[0064] A fluid distribution control unit 26a comprising a closing element (not shown here) can also be envisaged. The closing or sealing element is, for example, a cap, a valve, or a similar means. The closing element releases the fluid distribution through the distribution element 16a on the object or blocks this distribution through the distribution element 16a on the object depending on the rotational position of the wiper unit 12a. The closing element is designed to block the fluid or allow it to pass through in at least one operating state. Blocking or releasing the fluid distribution through the distribution element 16a can also be envisaged by means of the closing element controlled either purely mechanically or by a control or regulation unit.The closing element is provided on the distribution element 16a, for example, on the distribution port 18a of the distribution element 16a. The closing element can also be installed on the pipe 14a or in another technically advantageous position for the closing element. Furthermore, the wiping system 50a, in particular the wiper 30a or the wiper blade assembly 10a, includes a sensor to determine the rotational position of the wiper blade unit 12a; the fluid distribution control unit 26a controls or regulates the fluid distribution by the distribution element 16a, in particular based on a signal provided by the sensor. Alternatively, or in addition, a user can control the fluid distribution by the distribution element 16a, in particular using the closing element, by manually closing or releasing it. this possibility. Alternatively, a liquid distribution control unit 26a can also be considered, in particular a control or regulation unit which releases or blocks the liquid distribution by controlling or regulating the pump.

[0065] The distribution element 16a is adjustablely mounted on the end surface area 20a of the wiper unit 12a. The direction of fluid distribution of the distribution element 16a, and thus in particular the main axis of the distribution orifice 18a of the distribution element 16a, regulates the distribution pressure, in particular the spray pressure, the distribution pattern, in particular the spray pattern, the angular range of action, in particular the spray angle range, or a similar means of the distribution element 16a. The distribution element 16a may also be manually adjusted by the user or by a control or regulating unit. For example, the distribution element 16a rotates for adjustment or includes an operating element (not shown here) such as a push button, a knob, or a similar means.

[0066] Figure 5 schematically illustrates the method for controlling the wiper assembly 10a. The wiper assembly 10a, in particular the wiper blade 30a, is driven in rotation in a cleaning motion around its axis of rotation. The wiper assembly 10a is driven by the drive unit 66a to rotate around its axis of rotation, preferably in a wiping motion. The wiper assembly 10a is moved, preferably by the drive unit 66a, onto the vehicle window 22a to clean this window 22a in a particular step 38a of the method. The wiper assembly 10a is pivoted to clean the window 22a within a maximum angular range between two endpoints, by an alternating motion, preferably by pivoting. The maximum angular range is, for example, less than 180° and greater than 90°.Alternatively, another technically interesting maximum angular range for the pivoting or rotating of the wiper blade assembly 10a can also be considered. The wiping movement, particularly over virtually the entire maximum angular range, results in the distribution of liquid by the various distribution elements onto the glass 22a, preferably in step 38a of the process.

[0067] Alternatively, with several other distribution elements, during the wiping movement, a liquid is distributed only in segments, or at least practically over the entire maximum angular range, no liquid is distributed. Only within a portion of the maximum angular range does the distribution element 16a distribute a liquid, preferably in another process step 40a. During the cleaning operation, the liquid is applied by the distribution element 16a of the device. wiper blade 10a on the lidar device 24a, particularly in the other process step 40a. Alternatively, it can also be envisaged that, at least practically throughout the entire maximum range, the liquid is distributed by the distribution element 16a. The liquid distribution direction of the distribution element 16a, preferably the main axis of the distribution orifice 18a of the distribution element 16a, intersects, within this partial range of the maximum angular range, the lidar device 24a, the angular range in which the distribution element 16a distributes liquid.

[0068] Figure 6 shows another example of the invention. The following description and The drawings are limited to the main differences between the embodiments; the components or elements identical in both versions bear the same references in both the description and the drawings and refer to figures 1 to 5. To distinguish the embodiment examples, the suffix (a) is added to the references of the example in figures 1 to 5. In the case of the example in [Fig.6], the suffix is ​​the letter (b).

[0069] Figure 6 shows part of a windshield wiper assembly 10b. The assembly The wiper assembly 10b comprises at least one wiper unit 12b. The wiper unit 12b comprises a wiper blade 44b and a retaining rail 46b equipped with the wiper blade 44b. The wiper unit 12b comprises at least one fluid line 14b and another fluid line 28b. The fluid line 14b is a separate component, notably distinct from the retaining rail 46b. The outer cross-section of the fluid line 14b is circular. Alternatively, the outer cross-section of the fluid line 16b may also be polygonal. The outer cross-section lies in a plane perpendicular to the principal axis of extension of the fluid line 14b.

[0070] NOMENCLATURE OF MAIN ELEMENTS

[0071] (references are without the suffixes a and b)

[0072] 10 Windshield wiper assembly

[0073] 12 Wiper blade unit

[0074] 14 Conduct

[0075] 16 Distribution element / main extension axis of the retaining rail

[0076] 18 Distribution orifice

[0077] 20 End surface area of ​​the wiper unit

[0078] 22 Windscreen / windshield

[0079] 24 Lidar device

[0080] 28 Other conduct

[0081] 30 Windshield wiper

[0082] 32 Supply line

[0083] 34 Supply line

[0084] 36 Vehicle

[0085]

[0086]

[0087]

[0088]

[0089]

[0090]

[0091]

[0092]

[0093]

[0094]

[0095]

[0096]

[0097]

[0098] 42 Vehicle roof 44 Wiper blade 46 Retaining rail 48 Elastic rail 50 Wiping system 52 Wiper 54 Wiper arm 56 Wiper blade adapter 60 Retaining rail extension shaft 62 Wiper blade unit free end 64 Wiper blade unit outer surface 66 Drive unit 68 End cap 70 Cable

Claims

Demands

1. Wiper device (10a; 10b) comprising at least one wiper unit (12a; 12b) having at least one fluid conduit (14a; 14b) for a fluid and at least one distribution element (16a; 16b) for distributing the fluid onto an object to be cleaned, and the distribution element (16a; 16b) has at least one distribution orifice (18a; 18b) in an end surface area (20a; 20b) of the wiper unit (12a; 12b), device characterized in that the distribution element (16a; 16b) distributes the fluid in the longitudinal direction of the wiper unit (12a; 12b) onto the object which is other than a vehicle window (22a; 22b).

2. Wiper blade device (10a; 10b) according to claim 1, characterized in that the distribution element (16a; 16b) is provided to distribute the liquid in the longitudinal direction of the wiper blade unit (12a; 12b) onto the object which is in the form of a lidar device (24a; 24b).

3. Wiper blade device (10a; 10b) according to any one of the preceding claims, characterized in that the distribution element (16a; 16b) is provided in the area of ​​the outer circle of the wiper blade unit (12a; 12b).

4. Wiper blade device (10a; 10b) according to any one of the preceding claims, characterized in that the distribution element (16a; 16b) is provided to distribute the liquid in the longitudinal direction from the wiper blade unit (12a; 12b) outwards.

5. Wiper blade device (10a; 10b) according to claim 1, characterized in that the wiper blade unit (12a; 12b) has an end cap (68a; 68b) provided on the distribution element (16a; 16b).

6. Windshield wiper device (10a; 10b) according to any one of the preceding claims, characterized by a liquid distribution control unit (26a; 26b) to release or block the distribution of liquid onto the object depending on the rotation position of the wiper unit (12a; 12b).

7. Wiper blade device (10a; 10b) according to any one of the preceding claims, characterized in that the wiper blade unit (12a; 12b) comprises at least one other liquid conduit (28a; 28b) in particular different from the liquid conduit (14a; 14b) for conducting a liquid and at least one other distribution element for distributing the liquid onto another object to be cleaned in particular a vehicle window (22a; 22b).

8. Wiper blade device (10a; 10b) according to any one of the preceding claims, characterized in that the distribution element (16a; 16b) is mounted in an adjustable manner in the area of ​​the end surface (22a; 22b) of the wiper blade unit (12a; 12b).

9. Windscreen wiper (30a; 30b) comprising a wiper blade device (10a; 10b) according to any one of the preceding claims.

10. Wiper (30a; 30b) according to claim 9, characterized by a wiper arm (50a; 50b) provided with the wiper blade device (10a; 10b), the wiper arm (54a; 54b) having at least two supply lines (32a, 34a; 32b, 34b) for the fluid to the fluid line (14a; 14b) and to another fluid line (28a; 28b) of the wiper blade unit (12a; 12b).

11. Vehicle (36a; 36b) comprising a wiper device (10a; 10b) according to any one of claims 1 to 7 and an object in the form of a lidar device (24a; 24b).

12. Method of managing a wiper device (10a; 10b) in particular according to any one of claims 1 to 7, characterized in that during a cleaning operation, a liquid is applied by a distribution element (16a; 16b) of the wiper device (10a; 10b) onto a lidar device (24a; 24b).

Images