Scraper blade device

Abstract

The invention relates to a scraper blade device, comprising at least one spring rail (12a, 12a´; 12b, 12b´; 12c, 12c´; 12d, 12d´; 12e, 12e´; 12f, 12f´; 12g, 12g´), at least one wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g), and at least one scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g), the scraper strip unit comprising at least one first partial element, in particular a scraper base body (24a, 24b, 24c, 24d, 24e, 24f, 24g) and at least one scraper lip (26a, 26b, 26c, 26d, 26e, 26f, 26g). The invention proposes a fixing element (34a, 34b, 34c, 34d, 34e, 34f, 34g) which is designed differently from the at least one spring rail (12a, 12a´; 12b, 12b´; 12c, 12c´; 12d, 12d´; 12e, 12e´; 12f, 12f´, 12g, 12g´; 12g, 12g´), which in the assembled state is at least for reducing the at least one a clearance of the wiper strip units (22a, 22b, 22c, 22d, 22e, 22f, 22g) relative to the wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g) and / or the spring rail (12a, 12a´; 12b, 12b´; 12c, 12c´; 12d, 12d´; 12e, 12e´; 12f, 12f´; 12g, 12g´) and / or At least one partial element of the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) is provided in a gap relative to at least one scraper lip (26a, 26b, 26c, 26d, 26e, 26f, 26g) for scraping between the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) and the wind deflector unit (14a, 14b, 14c, 14d). A magnetic force lock, a material lock and / or a form lock produced by deformation of the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) are established between the scraper strip units (22a, 22b, 22c, 22d, 22e, 22f, 22g) and / or the spring rails (12a, 12a´; 12b, 12b´; 12c, 12c´; 12d, 12d´; 12e, 12e´; 12f, 12f´; 12g, 12g´).

Description

Technical Field

[0001] A wiper blade device has been proposed which has at least one spring rail, at least one wind deflector unit and at least one wiper strip unit which comprises at least one first subelement, in particular a wiper base body, and at least one wiper lip. Summary of the invention

[0002] The invention relates to a wiper blade device having at least one spring rail, at least one wind deflector unit and at least one wiper strip unit, which comprises at least one first subelement, in particular a wiper base body, and at least one wiper lip.

[0003] The present invention proposes that the wiper blade device includes at least one fixing element constructed differently from the at least one spring rail, and the fixing element is configured in the assembled state to establish a magnetic force lock, a material lock and / or a shape lock produced by deformation of the wiper strip unit between the wiper strip unit and the wind deflector unit and / or the spring rail, at least in order to reduce the gap between the at least one wiper strip unit and the wind deflector unit and / or the spring rail and / or the gap of at least one partial element of the wiper strip unit and the at least one wiper lip.

[0004] In this context, a "wiper blade device" should particularly refer to at least a part, in particular a subassembly, of a wiper blade, in particular a glass wiper blade and advantageously a vehicle glass wiper blade. In particular, the wiper blade device can also include an entire wiper blade, in particular an entire glass wiper blade and advantageously an entire vehicle glass wiper blade. It is conceivable that the wiper blade device is constructed in the form of a flat beam structure at least as a part of the wiper blade and / or as a wiper blade in the form of a flat beam structure. Preferably, the wiper blade device is arranged for use on a vehicle. Preferably, the wiper blade device is arranged for cleaning a surface, in particular the glass on a vehicle. In particular, the wiper blade device is coupled to a vehicle, in particular a wiper arm of a vehicle, for cleaning vehicle glass. "Coupled" in this context should particularly refer to a form-locking connection and / or a force-locking connection. "Set" should particularly be understood as a special setting, a special design and / or a special construction. "The object is set for a specific function" should particularly refer to that the object performs and / or implements this specific function in at least one use state and / or operating state.

[0005] A "scraping strip unit" should particularly refer to a unit consisting of at least one elastic material, which is arranged to move on the surface to be cleaned, in particular a glass surface, preferably a vehicle glass, in contact with the surface to be cleaned. Preferably, the scraping strip unit has a scraping base and a scraping lip. The scraping lip preferably constitutes the contact area between the scraping strip unit and the glass to be cleaned. The scraping base is constructed to be separated from the glass to be cleaned by the scraping lip. The scraping base is preferably firmly, especially integrally connected to the scraping lip. Preferably, the scraping strip unit is made of a natural or artificial elastomer, in particular of plastic and / or of rubber. "Integrally" should be understood in particular as being connected in a material-locking manner, such as, for example, by a welding process and / or an adhesive process, etc., and is particularly advantageously molded, for example, by manufacturing from a casting and / or by manufacturing with a single-component or multi-component injection molding method and / or an extrusion method, in particular a co-extrusion method.

[0006] Preferably, the scraper base of the scraper strip unit is configured to at least partially accommodate at least one spring rail for stabilization. In order to accommodate the spring rail, the scraper unit is particularly at least partially and preferably completely constitutes a spring rail accommodating portion. In this context, a "spring rail accommodating portion" should be understood as a channel or a groove, which is configured to at least partially accommodate the spring rail. Preferably, the spring rail accommodating portion is configured to basically surround the spring rail at least in the main part of the main extension direction. In particular, the scraper strip unit constitutes at least one spring rail accommodating portion configured as a spring rail channel, which is configured to completely accommodate the at least one spring rail. Alternatively or additionally, the scraper strip unit constitutes two spring rail accommodating portions configured as lateral accommodating grooves, which are configured to partially accommodate at least one spring rail respectively. Through the at least one spring rail accommodating portion, the at least one scraper strip unit is configured to be connected to the at least one spring rail. The size of the at least one spring rail accommodating portion is matched to the shape and size of the at least one spring rail. Advantageously, the wiper strip unit is connected to the spring rail in a form-fitting, in particular non-positive, manner.

[0007] A "spring rail" should be understood to mean, in particular, a macroscopic element having at least one extension which can be elastically varied in a normal operating state by at least 10%, in particular at least 20%, preferably at least 30% and particularly advantageously at least 50%, and which generates, in particular, a reaction force which is dependent on the variation of the extension and is preferably proportional to the variation, and which reacts against the variation. Preferably, the spring rail is at least partially made of spring steel. Alternatively or additionally, it is conceivable that the spring rail is at least partially made of plastic, of a composite material or of other materials which appear to be meaningful to a person skilled in the art. Preferably, the spring rail has essentially the shape of a bent rod in the unloaded state and particularly advantageously has the shape of a flattened bent rod. Furthermore, the spring rail is advantageously constructed in one piece. Alternatively, the spring rail can also be constructed in multiple pieces. It is particularly advantageous that the curvature of the spring rail along the spring rail in the unloaded state is greater than the curvature of the vehicle window surface of the motor vehicle, in particular the vehicle window, on which the spring rail is guided in at least one operating state. An "elastic body" is to be understood in particular as an object which can be deformed repeatedly without mechanical damage or destruction thereof and which, in particular after deformation, automatically returns to its basic shape. Preferably, the scraper blade arrangement comprises at least two, in particular exactly two, spring rails. An "extension" of an element is to be understood in particular as the maximum distance between two points of a perpendicular projection of the element onto a plane. A "visible element" is to be understood in particular as an element having an extension of at least 1 mm, in particular at least 5 mm and preferably at least 10 mm.

[0008] In this context, a "wind deflector unit" is to be understood as a unit which is provided for blocking an air inflow or headwind acting on the wiper blade device and / or for pressing the wiper blade against the surface to be wiped. Preferably, the wind deflector unit is at least partially composed of rubber and / or of an at least partially elastic plastic. Preferably, the wind deflector unit has at least one concave inflow surface. The wind deflector unit is in particular different from an end cap, a spring rail and / or a wiper blade adapter. Advantageously, the wind deflector unit extends in an operating state over at least a portion, preferably at least a majority, of the extension range of the wiper blade device along the main extension direction. Preferably, the at least one wind deflector unit is constructed at least integrally, in particular in one piece, with the at least one wiper strip unit. The wind deflector unit is preferably designed as a surface structure of the wiper strip unit.

[0009] The at least one fixing element is preferably provided in the assembled state at least for reducing the transverse play of the at least one scraper strip unit relative to the at least one wind deflector unit. "Transverse play" is to be understood in particular as the free space for movement of the relevant component in the scraping direction. It is also conceivable that the at least one fixing element is provided in the assembled state at least for reducing the transverse play of the at least one scraper strip unit relative to the at least one spring rail. It is also conceivable that the at least one fixing element is provided in the assembled state at least for reducing the transverse play of at least one partial element, in particular the scraper base, relative to the at least one scraper lip.

[0010] The at least one fastening element is preferably provided for a magnetic non-positive connection between the at least one scraper strip unit and the at least one spring rail, wherein the magnetic force preferably acts substantially perpendicularly to the scraping direction and perpendicularly to a main extension direction of the scraper strip unit.

[0011] Alternatively or additionally, the at least one fixing element is preferably provided for a material connection caused by adhesion between the scraper strip unit and the at least one spring rail. The at least one fixing element is preferably provided for a material connection caused by adhesion between at least one partial element of the scraper strip unit, in particular the scraper base body, and the at least one scraper lip.

[0012] Alternatively or additionally, the at least one fixing element is preferably arranged to form a form fit between a partial element of the scraper strip unit, in particular a scraper base, and the scraper lip by deforming the scraper strip unit, in particular at least partially pressing the at least one scraper strip unit and / or compressively pressing it onto the at least one spring rail. The at least one fixing element is preferably arranged to form a form fit between the at least one scraper strip unit and the at least one wind deflector unit by deforming the at least one scraper strip unit, in particular at least partially pressing the at least one scraper strip unit and / or pressing it onto the at least one spring rail. The at least one fixing element is preferably arranged to form a form fit between the at least one scraper lip and / or the at least one scraper base and the at least one wind deflector unit by deforming the scraper strip unit, in particular at least partially pressing the scraper strip unit and / or pressing it onto the at least one spring rail. Preferably, the at least one fixing element has at least one contact area with the at least one scraper strip unit.

[0013] It is conceivable that the scraper blade device has a plurality of fixing elements. Preferably, the at least one fixing element is arranged on the longitudinal side of the scraper strip unit. It is conceivable that the fixing elements, depending on the number of the main extension length of the scraper strip unit, are distributed on the longitudinal side of the scraper strip unit, especially over the extension range of the scraper strip unit. Preferably, the fixing elements are arranged on the side of the scraper strip unit facing the scraping direction. In the case where the scraper blade device has a plurality of fixing elements, the fixing elements are preferably arranged at intervals of 1-25 mm, especially also at intervals of 25-50 mm, alternatively at intervals of 50-75 mm or at intervals of 75-100 mm. "Scraping direction" should preferably be understood as a direction perpendicular to the main extension direction of the scraper strip unit, which extends perpendicular to the surface normal of the surface to be cleaned. "Main extension length" should be understood as the maximum length that an object has along its main extension direction. In this case, a “main extension direction” of an object is to be understood in particular as a direction which runs parallel to the longest edge of the geometrically smallest parallelepiped which still completely encloses the object.

[0014] The design of the scraper blade device according to the invention can in particular achieve an advantageous stabilization of the scraper strip unit. In particular, an advantageously gentle scraping of the scraper blade device can be achieved. The scraper lip is advantageously fixed during the scraping process. The at least one fixing element can advantageously be designed to be light. The at least one fixing element can advantageously prevent noisy scraping.

[0015] It is further proposed that the wiper blade device has at least one additional fixing element that is constructed differently from the at least one spring rail, and that in the assembled state is provided for establishing a magnetic force lock, material lock and / or a shape lock produced by deformation of the wiper strip unit between the wiper strip unit and the wind deflector unit and / or the spring rail, at least in order to reduce the gap of the at least one wiper strip unit relative to the wind deflector unit and / or the spring rail and / or the gap of at least one partial element of the wiper strip unit relative to the at least one wiper lip. At least one additional fixing element is provided for fixing the at least one wiper strip unit similarly to the at least one fixing element. "Fixed similarly" is preferably understood to mean that one element is provided for fixing another element and that the fixing is performed in the same manner as by the reference element at another location. For example, similar to the first fixing magnet, the additional fixing element is also constructed as a magnet and fixes the same element as the first fixing magnet in this manner. Advantageously, a light scraping is achieved by the wiper blade device. It is conceivable that the wiper blade device has a plurality of additional fixing elements. This ensures an advantageous stabilization of the wiper strip unit in both wiper directions.

[0016] It is further proposed that the at least one further fixing element is arranged on the side of the scraper strip unit opposite to the at least one fixing element. Preferably, the at least one fixing element and the at least one further fixing element are arranged on the side opposite to each other in the scraping direction over the maximum extension of the at least one scraper strip unit. In the case where the scraper blade device has a plurality of further fixing elements, the further fixing elements are preferably arranged at intervals of 1-25 mm, in particular also at intervals of 25-50 mm, alternatively at intervals of 50-75 mm or at intervals of 75-100 mm. This makes it possible to ensure an advantageously uniform scraping process.

[0017] It is further proposed that the at least one fixing element is arranged in the area between the at least one scraper lip and the at least one spring rail. Preferably, the at least one fixing element at least partially connects the at least one scraper lip to the spring rail. The "area between the at least one scraper lip and the at least one spring rail" should refer to an area which, in a cross section, has at least one contact point with a straight connecting section along a plane perpendicular to the main extension direction of the scraper strip unit, the connecting section connecting the at least one scraper lip and the at least one spring rail. Preferably, this should be understood in particular as a gap between the scraper lip and the spring rail, which gap is arranged within the range of the minimum spacing between the scraper lip and the spring rail. Advantageously, the scraper lip is stabilized during the scraping process. As a result, the scraper lip can be stabilized during the scraping process with advantageously low material input.

[0018] It is further proposed that the at least one fixing element extends at least substantially over the entire main extension of the wiper blade device. In the case of a single fixing element, the fixing element extends over the entire main extension of the wiper blade device, in particular over the main extension length. "Substantially over the entire length" should in particular mean that an element extends over at least 75% of the reference length, preferably over at least 90% thereof. It is conceivable that the wiper blade device has a plurality of, in particular at least two fixing elements. In the case of at least two fixing elements, at least one fixing element is arranged on opposite sides of the wiper strip unit along its main extension direction.

[0019] Alternatively or additionally, it is conceivable that the scraper blade device comprises at least eight fixing elements, wherein the at least eight fixing elements are preferably arranged on the scraper strip unit at a periodic interval on one side along the scraping direction in the assembled state. Preferably, the scraper blade device comprises at least eight additional fixing elements. The at least eight additional fixing elements are distributed over the entire main extension length of the scraper strip unit. The at least eight fixing elements and the at least eight additional fixing elements are preferably distributed along the entire main extension length of the scraper strip unit in a pattern that follows a straight line and maintains the same spacing. Preferably, the scraper blade device comprises as many fixing elements as additional fixing elements. Preferably, the at least one fixing element and the at least one additional fixing element each form a pair exactly opposite each other along the scraping direction. "Precisely opposite each other along the scraping direction" should preferably be understood as two elements being arranged on a connecting straight line parallel to the scraping direction. Preferably, a pair is arranged in an end region along the main extension direction of the scraper strip unit. It is conceivable that the pair is arranged at regular intervals along the entire main extension direction of the scraper strip unit. Alternatively, it is conceivable that the pairs consisting of a fixing element and another fixing element are arranged at irregular intervals along the entire main extension direction of the scraper strip unit. It is conceivable that the pairs consisting of a fixing element and another fixing element are arranged opposite to each other in a staggered manner. "Staggered opposite to each other" should preferably be understood as that a fixing element and another fixing element have a connecting straight line that is different from a straight line extending parallel to the scraping direction. Preferably, at least one other fixing element is arranged on a straight line that extends parallel to the scraping direction through the midpoint of the spacing between two adjacent fixing elements. Preferably, at least one fixing element is arranged on a straight line that extends parallel to the scraping direction through the midpoint of the spacing between two adjacent other fixing elements. Thus, it is advantageously possible to ensure slight scraping by increasing the stability of the scraper strip unit along its main extension direction. Thus, it is advantageously possible to ensure slight scraping by increasing the stability of the scraper strip unit with advantageously low material consumption.

[0020] It is further proposed that the at least one fixing element is constructed integrally with the wind deflector unit. Advantageously, the at least one fixing element is constructed integrally with the wind deflector unit. "Integrally" is to be understood in particular as being formed as one integral part. Preferably, the one integral part is manufactured from a single blank, molding compound (Masse) and / or casting, particularly preferably by an injection molding method, in particular a single-component and / or multi-component injection molding method. As a result, the at least one fixing element can advantageously be arranged accessible from the outside for maintenance and / or assembly. As a result, the wiper lip can advantageously be stabilized and light scraping can be achieved.

[0021] It is further proposed that the at least one fixing element is at least partially surrounded by partial elements of the at least one scraper strip unit in the assembled state. Preferably, the at least one fixing element is at least partially surrounded by the at least one scraper strip unit in the assembled state. Preferably, the outer surface of the fixing element which is free in the disassembled state is at least partially surrounded by partial elements of the at least one scraper strip unit in the assembled state. Preferably, the at least one fixing element is integrated into the scraper strip unit. This makes it possible, in particular, to achieve an advantageously simple assembly of the scraper blade device. Advantageously, the scraper lip can be stabilized in a point-like manner and achieve light scraping. Advantageously, the scraper lip can be firmly fixed in one position by mechanical deformation.

[0022] It is further proposed that the wiper blade device comprises at least one clamping element, on which the at least one fixing element is arranged, wherein the clamping element is provided for at least partially enclosing the at least one scraper strip unit and / or the at least one wind deflector unit. A "clamping element" should preferably be understood as an element that is provided for enclosing at least one other part of the scraper blade device. Preferably, the at least one clamping element comprises at least two clamping legs. A "clamping leg" should preferably be understood as a partial element of the at least one clamping element that is provided for enclosing a side of the scraper strip unit and / or the at least one wind deflector unit, in particular in contact. Preferably, at least two clamping legs are constructed in a connected manner. Preferably, the at least two clamping legs are constructed in one piece, in particular in one piece. It is conceivable that at least one clamping element is constructed in multiple pieces, in particular from multiple materials. Preferably, the at least one scraper strip unit is enclosed by the clamping element in the assembled state. Preferably, the clamping element at least partially rests on the at least one scraper strip unit in the assembled state. Preferably, the clamp element at least partially rests on the at least one spring rail, in particular on two spring rails, in the assembled state. Preferably, the clamp element at least partially rests on the wind deflector unit in the assembled state. Preferably, the scraper strip unit is constructed without the at least one clamp element on the side facing the scraper lip in the assembled state. Preferably, at least one fixing element is arranged on one of the at least two clamp legs. Preferably, at least one further fixing element is arranged on the other of the at least two clamp legs. Preferably, the fixing element is arranged on the inner side of at least one clamp element, in particular a clamp leg. Preferably, the fixing element arranged on the clamp element has a substantially triangular cross-section along a plane extending perpendicularly to the main extension direction of the scraper strip unit in the assembled state. The at least one fixing element and / or the at least one further fixing element are arranged to be connected to the scraper strip unit by a shape lock achieved by deformation of the scraper strip unit of the clamp element. It is conceivable that the at least one clamp element extends at least substantially over the entire main extension length of the scraper blade device. Preferably, the at least one fastening element and / or the at least one further fastening element are formed integrally with the at least one clamping element.

[0023] It is also conceivable that the wiper blade device comprises at least one further clamping element, on which at least one fixing element and one further fixing element are arranged. Preferably, the wiper blade device comprises at least two, preferably at least four, in particular exactly four clamping elements. Preferably, the at least one further clamping element is designed similarly to the at least one clamping element. As a result, the wiper strip unit can be designed to be particularly advantageously stable. As a result, the stability of the wiper strip unit is increased by using the frame of the wind deflector unit, and advantageously light scraping can be ensured.

[0024] It is further proposed that the at least one clamping element at least partially surrounds the at least one wind deflector unit. Preferably, the clamping element at least partially rests on the at least one wind deflector unit in the assembled state. Preferably, at least two clamping legs of the at least one clamping element are at least partially arranged on both sides along the wiping direction, in particular resting on the wind deflector unit. Preferably, the outer contour of the clamping element is designed in a wind-shielding manner in cross section along a plane which extends perpendicularly to the main extension direction of the wind deflector unit in the assembled state. Preferably, the shape of the outer contour of the clamping element corresponds to the shape of the outer contour of the wind deflector unit in a cross section along a plane which extends perpendicularly to the main extension direction of the wiper strip unit in the assembled state.

[0025] The at least one clamping element preferably comprises at least one stabilizing element. Preferably, the at least one stabilizing element has a substantially triangular cross section along a plane which, in the assembled state, extends perpendicularly to the main extension direction of the wiper strip unit. The stabilizing element is provided for forming a form fit between the clamping element and the wind deflector unit and for connecting the at least one clamping element to the wind deflector unit. The at least one stabilizing element is provided for forming a connection with the wind deflector unit by a form fit achieved by deformation of the wind deflector unit of the clamping element. As a result, advantageous wiping can be ensured by uninterrupted stabilization of the wiper strip unit under advantageously unaffected pressing forces. As a result, the pressing forces caused by the aerodynamics of the wiper blade device, in particular the wind deflector unit, can be supported by the clamping element.

[0026] It is further proposed that the at least one fixing element is configured as an adhesive connection. Preferably, the fixing element configured as an adhesive connection is arranged between the at least one spring rail and the at least one scraper strip unit, in particular the scraper base. It is conceivable that the fixing element configured as an adhesive connection is arranged between the at least one scraper lip and the at least one scraper base of the scraper strip unit. It is conceivable that the fixing element configured as an adhesive connection is configured as an adhesive strip, in particular a double-sided adhesive strip. It is also conceivable that the fixing element configured as an adhesive connection is configured as a liquid adhesive and / or an adhesive gel. Preferably, the fixing element configured as a liquid adhesive and / or an adhesive gel is arranged on the scraper base and the spring rail in the assembled state, in particular between them. Preferably, the fixing element configured as an adhesive strip is arranged on the scraper base and the spring rail, in particular between them.

[0027] It is further proposed that the at least one fixing element is configured as at least one magnet. The at least one fixing element configured as a magnet is preferably arranged in the scraper strip unit, in particular in the at least one scraper base. Preferably, the at least one fixing element configured as a magnet is arranged on the side facing the spring rail in the assembled state.

[0028] In addition, it is proposed that at least one fixing element is configured as a tooth element. "Tooth element" should preferably be understood as an element having at least one tip, which is arranged to be pressed into another element so as to achieve shape locking by deformation of the other element. Preferably, the fixing element configured as a tooth element is at least substantially arranged in another element, especially a partial element, of the scraper strip unit in the assembled state. It is conceivable that the tooth element has a blunt tip, especially a rounded tip. Advantageously, by assembling the fixing element configured as a tooth element multiple times, the scraper base and / or the scraper lip can be used without damage. Preferably, the fixing element configured as a tooth element has a substantially triangular and / or trapezoidal cross section along a plane extending perpendicular to the main extension direction of the scraper strip unit in the assembled state. "Substantially trapezoidal cross section" should preferably be understood as a shape having a minimum trapezoidal shape with a completely enclosed surface and a shape having a minimum rectangle, a minimum triangle and / or a minimum ellipse. Compared with the shape.

[0029] It is further proposed that the at least one fixing element is designed as a rail element. A "rail element" is to be understood as an element which bears against an object in a form-fitting manner and presses the object into a position. Preferably, the position into which the object is pressed by the at least one rail element differs from the position which the object would occupy at least due to gravity without the rail element. Preferably, the fixing element designed as a rail element is designed integrally, in particular in one piece, with the wind deflector unit. Preferably, the fixing element designed as a rail element at least partially presses the wiper strip unit, in particular the wiper base body, against the at least one spring rail for stabilization.

[0030] The wiper blade device according to the invention is not to be restricted to the above-described applications and embodiments. In particular, the wiper blade device according to the invention can have a number of individual elements, components and units that differs from the number mentioned here in order to fulfill the functional mode described here. In addition, in the value ranges given in the present disclosure, the values ​​within the mentioned limits are also to be regarded as public and can be used arbitrarily.

[0031] Reference numerals

[0032] Further advantages are given by the following description of the drawings. Six embodiments of the present invention are shown in the drawings. The drawings, the description and the claims contain a large number of combined features. A person skilled in the art can also appropriately consider these features individually and summarize other meaningful combinations. It is shown in the drawings:

[0033] Figure 1 A schematic top view of a wiper blade arrangement according to the invention is shown,

[0034] Figure 2 The scraper blade device according to the invention is shown in an exploded view,

[0035] Figure 3 shows a schematic sectional view of a wiper blade device according to the invention along a sectional plane III-III,

[0036] Figure 4 shows a schematic cross-sectional view of an alternative wiper blade arrangement according to the invention,

[0037] Figure 5 A schematic cross-sectional view shows another alternative wiper blade arrangement according to the invention,

[0038] Figure 6 A schematic cross-sectional view shows another alternative wiper blade arrangement according to the invention,

[0039] Figure 7 A schematic cross-sectional view shows another alternative wiper blade arrangement according to the invention,

[0040] Figure 8 A schematic cross-sectional view of another alternative wiper blade arrangement according to the invention is shown, and

[0041] Fig. 9 A further alternative wiper blade arrangement according to the invention is shown in a schematic sectional view. DETAILED DESCRIPTION

[0042] The wiper blade device 10a is in the assembled state. Figure 1 is shown in and Figure 2 Shown in exploded view.

[0043] The scraper blade device 10a comprises at least one scraper strip unit 22a. The scraper strip unit 22a comprises at least one first sub-element, in particular a scraper base 24a and at least one scraper lip 26a. The scraper base 24a and the scraper lip 26a are connected, in particular in one piece. The individual components of the scraper blade device 10a are Figure 2 1 is shown in an exploded view. The wiper blade device 10a includes at least one, in particular exactly two, spring rails 12a, 12a'. The wiper base 24a of the wiper strip unit 22a forms two spring rail receptacles 28a. The spring rail receptacles 28a are each formed by a groove located on the outside. The spring rail receptacles 28a are configured to accommodate the two spring rails 12a, 12a'. The wiper blade device 10a has a wind deflector unit 14a. The wind deflector unit 14a includes two wind deflector subassemblies 16a. The wind deflector unit 14a is arranged on the side of the wiper base 24a facing away from the wiper lip 26a. The wind deflector unit 14a forms a spoiler of the wiper blade device 10a. The wind deflector unit 14a is constructed in one piece with the wiper strip unit 22a. The wind deflector unit 14a and the wiper strip unit 22a are manufactured together by a multi-component extrusion method as an example. The wind deflector unit 14a and the scraper strip unit 22a are made of different materials. However, in principle, it is also conceivable that the wind deflector unit 14a and the scraper strip unit 22a are made of the same material. The scraper blade device 10a has a scraper blade adapter 18a. The scraper blade adapter 18a is provided for coupling the scraper blade device 10a with a scraper arm. The scraper blade adapter 18a is firmly connected to the scraper strip unit 22a, in particular to the scraper base 24a of the scraper strip unit 22a. The scraper blade device 10a comprises two scraper blade end caps 20a.

[0044] The wiper blade end caps 20a, 20a' are arranged in the assembled state at the end of the main extension 38a of the wiper blade device 10a. In the assembled state, the wiper blade end caps 20a, 20a' are locked with the spring rails 12a, 12a' in the opposite end regions of the spring rails 12a, 12a'.

[0045] The scraper blade device 10a comprises at least one clamping element 54a. The scraper blade device 10a comprises a plurality of clamping elements 54a. The scraper blade device 10a comprises, by way of example, exactly four clamping elements 54a. These clamping elements 54a, 54a´, 54a´´, 54a´´´ are provided for at least partially enclosing at least one scraper strip unit 22a and / or at least one wind deflector unit 14a. The clamping elements 54a, 54a´, 54a´´, 54a´´´ respectively at least partially surround the scraper strip unit 22a. The scraper lip 26a and the side of the scraper base 24a facing the scraper lip 26a are constructed so as not to be surrounded by the clamping elements 54a, 54a´, 54a´´, 54a´´´. The clamping elements 54a, 54a´, 54a´´, 54a´´´ partially surround the scraper base 24a. The clamp elements 54a, 54a´, 54a´´, 54a´´ partially surround the side surface in the wiping direction 30a of the wiping base body 24a. The clamp elements 54a, 54a´, 54a´´, 54a´´ rest against the wiping strip unit 22a in both wiping directions 30. The clamp elements 54a, 54a´, 54a´´, 54a´´ rest against the spring rails 12a, 12a´ on the side surfaces of the spring rails 12a, 12a´ in the wiping directions 30a, 30a´, respectively. The clamp elements 54a, 54a´, 54a´´, 54a´´ rest against the wind deflector unit 14a in a form-fitting manner. The clamp elements 54a, 54a´, 54a´´, 54a´´´ respectively surround the wind deflector unit 14a, the spring rail 12a, 12a´ and at least partially the wiper strip unit 22a perpendicularly to the main extension direction of the wiper blade device 10a. The clamp elements 54a, 54a´, 54a´´, 54a´´´ are respectively provided for fixing the spring rail 12a, 12a´ in the spring rail receptacle 28a of the wiper strip unit 22a. The clamp elements 54a, 54a´, 54a´´, 54a´´´ respectively comprise at least one, in particular four, stabilizing elements 56a, 56a´, 56a´´, 56a´´´. The stabilizing elements 56a, 56a´, 56a´´, 56a´´´ are provided to reduce the gap between the clamping elements 54a, 54a´, 54a´´, 54a´´´ and the wind deflector unit 14a and to establish a positive lock between the wind deflector unit 14a and the corresponding clamping elements 54a, 54a´, 54a´´, 54a´´´ caused by deformation of the wind deflector unit 14a. The stabilizing elements 56a, 56a´, 56a´´, 56a´´´ have a substantially triangular cross section III-III. The stabilizing elements 56a, 56a´, 56a´´, 56a´´´ are each formed by a conical tip. The stabilizing elements 56a, 56a´, 56a´´, 56a´´´ are pressed into the wind deflector unit 14a to locally deform the wind deflector unit 14a.The stabilizing elements 56a, 56a´, 56a´´, 56a´´´ hold the clamping elements 54a, 54a´, 54a´´, 54a´´´ on the wind deflector unit 14a in the assembled position by being pressed into the wind deflector unit 14a. The clamping elements 54a, 54a´, 54a´´, 54a´´´ of the wiper blade device 10a are each designed identically (see. Figure 3 ).

[0046] The central region 32a of the wiper base body 24a along its main extension 38a is designed without the clamping elements 54a, 54a', 54a'', 54a''' and the wind deflector unit 14a ( Figure 1 and Figure 2 The middle region 32a, which is constructed without the clamping elements 54a, 54a', 54a'', 54a''' and the wind deflector unit 14a, is provided for accommodating the wiper blade adapter 18a ( Figure 1 and Figure 2 ).

[0047] The wiper blade device 10a comprises at least one fastening element 34a which is designed differently from the spring rails 12a, 12a'. The wiper blade device 10a comprises a plurality of fastening elements 34a. The wiper blade device 10a comprises, by way of example, exactly four fastening elements 34a, only one of which is in the Figure 3 The scraper blade device 10a comprises at least one further fixing element 36a, 36a´, 36a´´, 36a´´´ which is designed differently from the spring rails 12a, 12a´. The scraper blade device 10a comprises a plurality of further fixing elements 36a, 36a´, 36a´´, 36a´´´. The scraper blade device 10a comprises, by way of example, exactly four further fixing elements 36a, 36a´, 36a´´, 36a´´´, wherein Figure 3Only one can be seen in the figure. The fixing element 34a is arranged in the area between the scraper lip 26a and the at least one spring rail 12a, 12a'. The further fixing elements 36a, 36a', 36a'', 36a''' are arranged in the area between the scraper lip 26a and the at least one spring rail 12a, 12a'. The fixing element 34a and the further fixing elements 36a, 36a', 36a'', 36a''' are arranged on the clamping elements 54a, 54a', 54a'', 54a'' respectively. The fixing element 34a and the further fixing elements 36a, 36a', 36a'', 36a''' are connected in one piece to the clamping elements 54a, 54a', 54a'', 54a'' respectively. A fixing element 34a and a further fixing element 36a, 36a', 36a'', 36a'' are arranged on each clamp element 54a, 54a', 54a'', 54a''. The fixing element 34a and the further fixing elements 36a, 36a', 36a'', 36a'' are arranged on opposite free ends of the clamp elements 54a, 54a', 54a'', 54a'', respectively. Figure 2 , four further fixing elements 36a, 36a´, 36a´´, 36a´´ are shown on the clamping elements 54a, 54a´, 54a´´, 54a´´. The fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´, respectively protrude on the inner side from the corresponding clamping element 54a, 54a´, 54a´´, 54a´´. The fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´ are formed, by way of example, by conical tips.

[0048] The fixing element 34a is provided in the assembled state for producing a magnetic force connection, a material connection, a form connection produced by deformation of the scraper strip unit 22a between the scraper strip unit 22a and the scraper strip unit 14a and / or the spring rails 12a, 12a', at least in order to reduce the clearance of the at least one scraper strip unit 22a relative to the wind deflector unit 14a and / or the spring rails 12a, 12a' and / or the clearance of at least one sub-element of the scraper strip unit 22a relative to the at least one scraper lip 26a. The fixing element 34a is provided in the assembled state for producing a form connection produced by deformation of the scraper strip unit 22a between the scraper strip unit 22a and the spring rails 12a, 12a', at least in order to reduce the clearance of the scraper strip unit 22a relative to the spring rails 12a, 12a'. The fixing element 34a is arranged on one side at the maximum extension of the scraper strip unit 22a in the scraping direction 30a. A fixing element 34a and further fixing elements 36a, 36a', 36a'', 36a'' are arranged in the region of the clamp elements 54a, 54a', 54a'', 54a'', respectively, which in the assembled state bear against the wiper strip unit 22a in the wiper direction 30a. The fixing element 34a in the assembled state partially extends into the wiper base body 24b of the wiper strip unit 22a.

[0049] The further fixing elements 36a, 36a´, 36a´´, 36a´´ are provided in the assembled state for producing a magnetic force connection, a material connection, a form connection produced by deformation of the scraper strip unit 22a, at least in order to reduce the clearance of the at least one scraper strip unit 22a relative to the wind deflector unit 14a and / or the spring rails 12a, 12a´ and / or the clearance of at least one sub-element of the scraper strip unit 22a relative to the at least one scraper lip 26a. The further fixing elements 36a, 36a´, 36a´´, 36a´´ are provided in the assembled state for producing a form connection produced by deformation of the scraper strip unit 22a, at least in order to reduce the clearance of the at least one scraper strip unit 22a relative to the spring rails 12a, 12a´. The further fixing elements 36a, 36a´, 36a´´, 36a´´ fix the scraper strip unit 22a in a similar manner to the fixing element 34a. The further fixing elements 36a, 36a´, 36a´´, 36a´´ are arranged on the side of the scraper strip unit 22a that is opposite to the fixing element 34a. The further fixing elements 36a, 36a´, 36a´´, 36a´´ in the assembled state partially extend into the scraper base 24b of the scraper strip unit 22a. The fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´ are respectively at least partially surrounded by the scraper base 24b of the at least one scraper strip unit 22a in the assembled state. The fastening element 34a and the further fastening elements 36a , 36a ′, 36a ′′, 36a ′′′ are formed integrally with the clamp elements 54a , 54a ′, 54a ′′, 54a ′′′.

[0050] Different numbers and arrangements of the fixing elements 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´´ are conceivable. It is conceivable that the scraper blade device 10a has a plurality, for example at least eight fixing elements 34a and at least eight further fixing elements 36a, 36a´, 36a´´, 36a´´´, which extend substantially over the entire main extension range 38a of the scraper blade device 10a. In the case of at least eight fixing elements 34a, at least one fixing element 34a is arranged along its main extension direction in each of the two end regions of the scraper strip unit 22a. The at least eight fixing elements 34a are arranged on one side along the scraping direction 30a, 30a´ on the scraper strip unit 22a at periodic intervals in the assembled state. In the case of at least eight further fixing elements 36a, 36a´, 36a´´, 36a´´, at least one further fixing element 36a, 36a´, 36a´´, 36a´´´ is arranged along its main extension 38a in each of the two end regions of the scraper strip unit 22a. The at least eight further fixing elements 36a, 36a´, 36a´´, 36a´´´ are arranged on one side along the scraping direction 30a, 30a´ at periodic intervals in the assembled state on the scraper strip unit 22a. The at least eight fixing elements 34a and the at least eight further fixing elements 36a, 36a´, 36a´´, 36a´´´ are preferably distributed in a pattern following a straight line and maintaining the same spacing along the entire main extension 38a of the scraper strip unit 22a. Different arrangements are conceivable for the distribution of the at least eight fastening elements 34a and the at least eight further fastening elements 36a , 36a ′, 36a ′′, 36a ′′′ along the main extension 38a of the wiper strip unit 22a .

[0051] In one arrangement, it is conceivable that exactly one fixing element 34a and one further fixing element 36a, 36a´, 36a´´, 36a´´ are respectively situated opposite one another. It is particularly conceivable here that the fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´ are respectively arranged side by side and opposite one another at a small spacing, in particular a spacing of 1 to 25 mm. It is also particularly conceivable that the fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´ are respectively arranged side by side and opposite one another at an intermediate spacing, in particular a spacing of 25 to 50 mm. It is also particularly conceivable that the fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´ are respectively arranged side by side and opposite one another at a large spacing, in particular a spacing of 50 to 75 mm. Furthermore, it is in particular conceivable that the fastening element 34a and the further fastening elements 36a , 36a ′, 36a ′′, 36a ′′′ are each situated next to each other and respectively opposite each other at a greater distance, in particular at a distance of 75 to 100 mm.

[0052] Furthermore, it is particularly conceivable that the fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´ are each arranged next to one another at a spacing of, in particular, 1 to 50 mm, wherein the fixing element 34a is arranged alternately with respect to the further fixing elements 36a, 36a´, 36a´´, 36a´´. Furthermore, it is particularly conceivable that the fixing element 34a and the further fixing elements 36a, 36a´, 36a´´, 36a´´ are each arranged next to one another at a spacing of, in particular, 50 to 100 mm, wherein the fixing element 34a is arranged alternately with respect to the further fixing elements 36a, 36a´, 36a´´, 36a´´.

[0053] It is conceivable that the clamping elements 54a, 54a´, 54a´´, 54a´´ and / or at least one further clamping element 54a, 54a´, 54a´´, 54a´´ extend at least substantially over the entire main extension 38a of the wiper blade device 10a. In another conceivable embodiment variant, at least one fixing element 34a and / or at least one further fixing element 36a, 36a´, 36a´´, 36a´´ are configured as adhesive connections on the clamping elements 54a, 54a´, 54a´´, 54a´´ and the further clamping elements 54a, 54a´, 54a´´, 54a´´. In another conceivable embodiment variant, the fixing element 34a and / or the further fixing elements 36a, 36a´, 36a´´, 36a´´´ extend over the entire extension of the clamping elements 54a, 54a´, 54a´´, 54a´´´, wherein the clamping elements 54a, 54a´, 54a´´, 54a´´´ extend at least substantially over the entire main extension 38a of the wiper blade device 10a.

[0054] exist Figures 4 to 9 The following description and drawings are essentially limited to the differences between the exemplary embodiments, wherein, with respect to the components with the same reference numerals, in particular with respect to the components with the same reference numerals, reference can in principle also be made to the other exemplary embodiments, in particular Figures 1 to 3 In order to distinguish these embodiments, the letter a is placed in Figures 1 to 3 After the reference numerals of the embodiments in the Figures 4 to 9 In the embodiment of the present invention, the letter a is replaced by letters b to g.

[0055] exist Figure 41 shows a scraper blade device 10b in cross section III-III. The scraper blade device 10b has a scraper strip unit 22b. The scraper strip unit 22b includes a first part element, in particular a scraper base 24b and a scraper lip 26b. The scraper lip 26b has a vibration-damping longitudinal channel. The scraper strip unit 22b is constructed in two parts. The scraper base 24b and the scraper lip 26b are constructed as separate components. The scraper base 24b and the scraper lip 26b are connected in a form-locking manner in the assembled state. The scraper lip 26b has a T-shaped groove on the side facing the scraper base 24b, and the T-shaped groove extends on the entire scraper lip 26b along the main extension direction of the scraper lip 26b. The scraper base 24b has two L-shaped protrusions pointing in opposite directions on the side facing the scraper lip 26b, and the L-shaped protrusions extend on the entire scraper base 24b along the main extension direction of the scraper base 24b respectively. In the assembled state, the L-shaped protrusion of the scraper base 24b is embedded in the T-shaped groove of the scraper lip 26b, and the two components together constitute the scraper strip unit 22b. The scraper blade device 10b includes two spring rails 12b, 12b'. The scraper base 24b of the scraper strip unit 22b forms two spring rail receptacles 28b. The spring rail receptacles 28b are respectively formed by internal, material-enclosed channels. The spring rail receptacles 28b are configured to accommodate the two spring rails 12b, 12b'. The scraper blade device 10b has a wind deflector unit 14b. The wind deflector unit 14b is arranged on the side of the scraper base 24b facing away from the scraper lip 26b. The wind deflector unit 14b constitutes the deflector of the scraper blade device 10b. The wind deflector unit 14b has a deflector area and a fastening area. The deflector area and the fastening area are made of different materials. The wind deflector unit 14b is at least partially made of an elastomer and at least partially made of a thermoplastic. The deflector region and the fastening region are produced by a multi-component extrusion process. The wind deflector unit 14b surrounds the scraper base 24b of the scraper strip unit 22b in the fastening region. The wind deflector unit 14b surrounds the scraper base 24b of the scraper strip unit 22b in the fastening region up to the scraper lip 26b, wherein the two free ends of the wind deflector unit 14b are arranged on opposite sides of the scraper lip 26.

[0056] The wiper blade device 10b comprises at least one fixing element 34b which is constructed differently from the spring rails 12b, 12b'. The wiper blade device 10b comprises a plurality of fixing elements 34b. The wiper blade device 10b comprises at least one further fixing element 36b which is constructed differently from the spring rails 12b, 12b'. The wiper blade device 10b comprises a plurality of further fixing elements 36b. The fixing element 34b is arranged on the wind deflector unit 14b. The fixing element 34b is constructed integrally with the wind deflector unit 14b. The fixing element 34b is arranged on the wind deflector unit 14b distributed along the main extension direction of the wiper blade device 10b. The fixing element 34b is arranged on the free end of the wind deflector unit 14b in the region against which the wiper lip 26b abuts. The fixing elements 34b are respectively constructed as tooth elements. The fixing elements 34b are respectively formed by a conical tip. The further fixing elements 36b are constructed similarly to the fixing element 34b. The further fixing element 36b is arranged on the side of the wiper blade device 10b which is opposite in the wiping direction 30b. The fixing element 34b and the further fixing element 36b are distributed over the entire main extension 38b of the wiper blade device 10b in a possible arrangement according to the first embodiment. Preferably, the fixing element 34b and the further fixing element 36b are arranged side by side at a certain interval, wherein the fixing element 34b is arranged alternately with respect to the further fixing element 36b.

[0057] exist Figure 51 shows a scraper blade device 10c in cross section III-III. The scraper blade device 10c has a scraper strip unit 22c. The scraper strip unit 22c includes a first part element, in particular a scraper base 24c and a scraper lip 26c. The scraper lip 26c has a vibration-damping longitudinal channel. The scraper strip unit 22c is constructed in two parts. The scraper base 24c and the scraper lip 26c are constructed as separate components. The scraper base 24c and the scraper lip 26c are connected in a form-locking manner in the assembled state. The scraper lip 26c has a T-shaped groove on the side facing the scraper base 24c, and the T-shaped groove extends on the entire scraper lip 26c along the main extension direction of the scraper lip 26c. The scraper base 24c has two L-shaped protrusions pointing in opposite directions on the side facing the scraper lip 26c, and the L-shaped protrusions extend on the entire scraper base 24c along the main extension direction of the scraper base 24c respectively. In the assembled state, the L-shaped protrusion of the scraper base 24c is embedded in the T-shaped groove of the scraper lip 26c and the two parts together form the scraper strip unit 22c. In addition, the scraper base 24c has two tabs, which extend partially in the direction of a cleaning edge on both sides of the scraper lip 26c and at least partially surround the scraper lip 26c. The tabs extend over the entire scraper base 24c along the main extension direction of the scraper base 24c respectively. The scraper blade device 10c includes two spring rails 12c, 12b'. The scraper base 24c of the scraper strip unit 22c forms two spring rail receptacles 28c. The spring rail receptacles 28c are respectively formed by internal, material-enclosed channels. The spring rail receptacles 28c are configured to accommodate the two spring rails 12c, 12b'. The scraper blade device 10c has a wind deflector unit 14c. The wind deflector unit 14c is arranged on the side of the scraper base 24c facing away from the scraper lip 26c. The wind deflector unit 14c constitutes a deflector of the scraper blade device 10c. The wind deflector unit 14c has a deflector area and a fastening area. The deflector area and the fastening area are made of different materials. The wind deflector unit 14c is at least partially composed of an elastomer and at least partially composed of a thermoplastic. The deflector area and the fastening area are made by a multi-component extrusion method. The wind deflector unit 14c surrounds the scraper base 24c of the scraper strip unit 22c in the fastening area. The wind deflector unit 14c surrounds the scraper base 24c of the scraper strip unit 22c in the fastening area up to the scraper lip 26c, wherein the two free ends of the wind deflector unit 14c are arranged on the scraper lip 26c on opposite sides.

[0058] The wiper blade device 10c comprises at least one fixing element 34c which is constructed differently from the spring rails 12c, 12c'. The wiper blade device 10c comprises at least one further fixing element 36c which is constructed differently from the spring rails 12c, 12c'. The fixing element 34c is at least partially arranged on the scraper base 24c. The fixing element 34c is at least partially arranged on the scraper lip 26c. The fixing element 34c is constructed as an adhesive connection. The fixing element 34c is constructed as an L-shaped adhesive connection between the scraper base 24c and the scraper lip 26c. The fixing element 34c is provided in the assembled state for establishing a material connection between the scraper strip unit 22c and the spring rails 12c, 12c' in order to reduce the gap between the scraper strip unit 22c and the spring rails 12c, 12c'. The further fixing element 36c is constructed as an adhesive connection. The additional fixing element 36c is constructed as an L-shaped adhesive connection between the scraping base 24c and the scraping lip 26c. The fixing element 34c and the additional fixing element 36c are constructed as hardened liquid glue and / or gel / paste. The additional fixing element 36c is constructed similarly to a fixing element 34c. The additional fixing element 36c is arranged on the side of the scraper blade device 10c opposite to the fixing element 34c along the scraping direction 30c. The fixing element 34c and the additional fixing element 36c can be respectively constructed not only as a planar adhesive portion on the entire main extension range 38c of the scraper blade device 10c, but also by individual adhesive points, which are distributed on the main extension range 38c of the scraper blade device 10c. At the individual adhesive points, these adhesive points are distributed on the entire main extension range 38c of the scraper blade device 10c in an arrangement according to the first embodiment.

[0059] exist Figure 6Another embodiment of a scraper blade device 10d is shown in cross section III-III in FIG. The scraper blade device 10d includes at least one scraper strip unit 22d. The scraper strip unit 22d includes at least one first part element, in particular a scraper base 24d and at least one scraper lip 26d. The scraper base 24d and the scraper lip 26d are connected, in particular, are constructed in one piece. The scraper blade device 10d includes at least one, in particular, exactly two spring rails 12d, 12d´. The scraper base 24d of the scraper strip unit 22d forms two spring rail accommodating portions 28d. The spring rail accommodating portions 28d are respectively formed by grooves located outside. The spring rail accommodating portions 28d are constructed to accommodate two spring rails 12d, 12d´. In addition, the scraper blade device 10d has a wind deflector unit 14d. The wind deflector unit 14d is arranged on the side of the scraper base 24d facing away from the scraper lip 26d. The wind deflector unit 14d forms a deflector of the wiper blade device 10d. The wind deflector unit 14d has a deflector region and a fastening region. The wind deflector unit 14d surrounds the scraper base 24d and the spring rails 12d, 12d' of the scraper strip unit 22d in the fastening region. The wind deflector unit 14d surrounds the scraper base 24d of the scraper strip unit 22d in the fastening region up to the scraper lip 26d, wherein the two free ends of the wind deflector unit 14d abut against the scraper lip 26d on opposite sides.

[0060] The wiper blade device 10d comprises at least one fixing element 34d which is constructed differently from the spring rails 12d, 12d'. The wiper blade device 10d comprises at least one further fixing element 36d which is constructed differently from the spring rails 12d, 12d'. The fixing element 34d is arranged on the wind deflector unit 14d. The fixing element 34b is arranged on the wind deflector unit 14b in a region which abuts against at least one wiper base 24d along the wiping direction 30d, 30d' and on the side of the wiper base 24d which faces the wiper lip 26d. The fixing element 34d is arranged on one of the free ends of the wind deflector unit 14d. The fixing element 34d is constructed as a rail element. The fixing element 34d has a substantially L-shaped cross section III-III. The fixing element 34d is provided in the assembled state to reduce the clearance of the scraper strip unit 22g relative to the wind deflector unit 14d, and is used to establish a positive lock between the scraper strip unit 22d and the wind deflector unit 14d or the spring rails 12g, 12g', which is produced by deformation of the scraper strip unit 22d, in particular the scraper lip 26d. The further fixing element 36d also has a substantially L-shaped cross section III-III. The further fixing element 36d is constructed similarly to the fixing element 34d.

[0061] The additional fixing element 36d is arranged on the side of the wiper blade device 10d that is opposite in the wiping direction 30d. The fixing element 34d and the additional fixing element 36d are arranged to engage the wiper lip 26d from below and at least partially press it in the direction of the spring rails 12d, 12d'. The fixing element 34d and the additional fixing element 36d are arranged to partially compress the wiper lip 26d. The fixing element 34d and the additional fixing element 36d preferably extend over the entire main extension range 38d of the wiper blade device 10d respectively. However, it is also conceivable that the wiper blade device 10d has a plurality of identical fixing elements 34d and additional fixing elements 36d, which are arranged distributed over the main extension range 38d of the wiper blade device 10d. For a plurality of fixing elements 34d and additional fixing elements 36d, these fixing elements are distributed over the entire main extension range 38d of the wiper blade device 10d in one of the arrangements according to the first embodiment.

[0062] exist Figure 7 Another embodiment of a wiper blade device 10e is shown in cross section III-III in FIG. The wiper blade device 10e comprises at least one wiper strip unit 22e. The wiper strip unit 22e comprises at least one first partial element, in particular a wiper base 24e and at least one wiper lip 26e. The wiper base 24e is connected to the wiper lip 26e, in particular, it is constructed in one piece. The wiper blade device 10e comprises at least one, in particular, exactly two spring rails 12e, 12e´. The wiper base 24e of the wiper strip unit 22e forms two spring rail receptacles 28e. The spring rail receptacles 28e are respectively formed by grooves located on the outside. The spring rail receptacles 28e are constructed to accommodate two spring rails 12e, 12e´. In addition, the wiper blade device 10e has a wind deflector unit 14e, which is not further shown. The wind deflector unit 14e surrounds the wiper base body 24e and the spring rails 12e, 12e' of the wiper strip unit 22e in the fastening region. However, other fastenings of the spring rails 12e, 12e' to the wiper base body 24e which appear sensible to a person skilled in the art are also conceivable in principle.

[0063] The scraper blade device 10e includes at least one fixing element 34e that is constructed differently from the spring rails 12e, 12e'. The scraper blade device 10e includes at least one other fixing element 36e that is constructed differently from the spring rails 12e, 12e'. The fixing element 34e is arranged in the scraper base 24e. The at least one fixing element 34e is arranged in the scraper base 24e in a region that abuts against the side of the scraper base 24e facing the spring rails 12e, 12e'. The at least one fixing element 34e is configured as a magnet. The fixing element 34e has a substantially circular cross section III-III. The fixing element 34e is provided in the assembled state for reducing the gap of at least one scraper strip unit 22e relative to the spring rails 12e, 12e' to establish a magnetic force lock between the scraper strip unit 22e and the spring rails 12e, 12e'. The at least one other fixing element 36e has a substantially circular cross section III-III. The additional fixing element 36e is constructed similarly to the fixing element 34e. The additional fixing element 36e is arranged on the side of the wiper blade device 10e that is opposite in the scraping direction 30e. The fixing element 34e and the additional fixing element 36e preferably extend over the entire main extension range 38e of the wiper blade device 10e. However, it is also conceivable that the wiper blade device 10e has a plurality of identical fixing elements 34e and additional fixing elements 36e, which are arranged distributed over the main extension range 38e of the wiper blade device 10e. For a plurality of fixing elements 34e and additional fixing elements 36e, these fixing elements are distributed over the entire main extension range 38e of the wiper blade device 10e in one of the arrangements according to the first embodiment.

[0064] exist Figure 8Another embodiment of a scraper blade device 10f is shown in cross section III-III in FIG. The scraper blade device 10f comprises at least one scraper strip unit 22f. The scraper strip unit 22f comprises at least one first partial element, in particular a scraper base 24f and at least one scraper lip 26f. The scraper base 24f and the scraper lip 26f are connected, in particular constructed in one piece. The scraper blade device 10f comprises at least one, in particular exactly two spring rails 12f, 12f´. The scraper base 24f of the scraper strip unit 22f constitutes two spring rail receptacles 28f. The spring rail receptacles 28f are respectively formed by grooves located on the outside. The spring rail receptacles 28f are constructed to accommodate two spring rails 12f, 12f´. In addition, the scraper blade device 10f has a wind deflector unit 14f, which is not further shown. The wind deflector unit 14f encompasses the wiper base 24f and the spring rails 12f, 12f' of the wiper strip unit 22f in the fastening region. However, in principle, other fastenings of the spring rails 12f, 12f' to the wiper base 24f that appear sensible to a person skilled in the art are also conceivable.

[0065] The wiper blade device 10f comprises at least one fixing element 34f which is constructed differently from the spring rails 12f, 12f´. The wiper blade device 10f comprises at least one further fixing element 36f which is constructed differently from the spring rails 12f, 12f´. The at least one fixing element 34f is arranged on the wiper base 24f. The at least one fixing element 34f is arranged on the wiper base 24f on the side facing the spring rails 12f, 12f´. The at least one fixing element 34f is arranged on the at least one spring rail 12f, 12f´. The at least one fixing element 34f is constructed as an adhesive connection, in particular as a double-sided adhesive strip. The fixing element 34f bonds the wiper base 24f to the spring rails 12f, 12f´. The fixing element 34f is provided in the assembled state for establishing a material connection between the scraper strip unit 22f and the spring rails 12f, 12f' in order to reduce the clearance of the at least one scraper strip unit 22f relative to the spring rails 12f, 12f'. The at least one further fixing element 36f is constructed similarly to the at least one fixing element 34f. The at least one further fixing element 36f is arranged on the side of the scraper blade device 10f that is opposite in the scraping direction 30f. The fixing element 34f and the further fixing element 36f can each be constructed not only as a planar adhesive bond over the entire main extension range 38f of the scraper blade device 10f, but also as individual adhesive points that are distributed over the main extension range 38f of the scraper blade device 10f. For the individual adhesive points, these adhesive points are distributed over the entire main extension range 38f of the scraper blade device 10f in particular in one of the arrangements according to the first embodiment.

[0066] exist Fig. 9 , a partial cross section of a scraper blade device 10g is shown in cross section III-III. The scraper blade device 10g has a scraper strip unit 22g. The scraper strip unit 22g includes a first part element, in particular a scraper base 24g and a scraper lip 26g. The scraper lip 26g has a vibration-damping longitudinal channel. The scraper strip unit 22g is constructed in two parts. The scraper base 24g and the scraper lip 26g are constructed as separate components. The scraper base 24g and the scraper lip 26g are connected in a form-locking manner in the assembled state. The scraper lip 26g has a T-shaped groove on the side facing the scraper base 24g, and the T-shaped groove extends on the entire scraper lip 26g along the main extension direction of the scraper lip 26g. The scraper base 24g has two L-shaped protrusions pointing in opposite directions on the side facing the scraper lip 26g, and the L-shaped protrusions extend on the entire scraper base 24g along the main extension direction of the scraper base 24g respectively. In the assembled state, the L-shaped protrusion of the scraper base 24g is embedded in the T-shaped groove of the scraper lip 26g, and the two components together form the scraper strip unit 22g. In addition, the scraper base 24g has two tabs, which extend partially in the direction of a cleaning edge on both sides of the scraper lip 26g and at least partially surround the scraper lip 26g. The tabs extend along the main extension direction of the scraper base 24g on the entire scraper base 24g. The scraper blade device 10g includes two spring rails 12g, 12g'. The scraper base 24g of the scraper strip unit 22g forms two spring rail receptacles 28g. The spring rail receptacles 28g are respectively formed by internal, material-enclosed channels. The spring rail receptacles 28g are configured to accommodate the two spring rails 12g, 12g'.

[0067] The scraper blade device 10g includes a plurality of fixing elements 34g that are constructed differently from the spring rails 12g, 12g'. The scraper blade device 10g includes a plurality of other fixing elements 36g that are constructed differently from the spring rails 12g, 12g'. The fixing elements 34g are arranged on the scraper base 24g. The fixing elements 34g are at least partially arranged on the scraper lip 26g in the assembled state. The fixing elements 34g are respectively arranged on one of the tabs of the scraper base 24g on the side facing the scraper lip 26g. The fixing elements 34g are respectively constructed as tooth elements. The fixing elements 34g are respectively constructed as substantially cylindrical formed portions in the tabs of the scraper base 24g. The fixing elements 34g are made in particular by plastic deformation of the tabs of the scraper base 24g. It is particularly conceivable here that these components are installed after the final assembly so that simple assembly can be achieved. The fixing element 34g is provided in the assembled state for reducing the clearance of the scraper base 24g relative to the scraper lip 26g and thus reducing the clearance of the scraper strip unit 22g relative to the spring rails 12g, 12g', and is used to establish a positive lock between the scraper strip unit 22g and the spring rails 12g, 12g', which is produced by the deformation of the scraper strip unit 22g, in particular the scraper lip 26g. The further fixing element 36g is constructed similarly to the fixing element 34g. The further fixing element 36g is arranged on the side of the scraper blade device 10g that is opposite in the scraping direction 30g. The fixing element 34g and the further fixing element 36g are distributed over the entire main extension range 38g of the scraper blade device 10g in one of the possible arrangements according to the first embodiment. Preferably, the fixing element 34g and the further fixing element 36g are arranged side by side at a certain interval, wherein the fixing element 34g is arranged alternately relative to the further fixing element 36g.

Claims

1. A scraper blade device, comprising: at least one spring rail (12a, 12a'; 12b, 12b'; 12c, 12c'; 12d, 12d'; 12e, 12e'; 12f, 12f'; 12g, 12g'), at least one wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g), and at least one scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g), the scraper strip unit comprising at least one scraper base (24a, 24b, 24c, 24d, 24e, 24 f, 24g) and at least one scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) and at least one scraper lip (26a, 26b, 26c, 26d, 26e, 26f, 26g), and having at least one fixing element (34a, 34b, 34c, 34d, 34e, 34f, 34g) which is designed differently from the at least one spring rail (12a, 12a'; 12b, 12b'; 12c, 12c'; 12d, 12d'; 12e, 12e'; 12f, 12f', 12g, 12g') and which, in the assembled state, is at least for reducing the size of the at least one scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) relative to the wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g) and / or the spring rail (12a, 12a'; 12b, 12b'; 12c, 12c'; 12d, 12d'; 12e, 12e'; 12f, 12f'; 12g, 12g') and / or the clearance of at least one partial element of the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) relative to at least one scraper lip (26a, 26b, 26c, 26d, 26e, 26f, 26g) is provided for A magnetic force lock, a material lock and / or a form lock produced by deformation of the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) is established between the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) and the wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g) and / or a spring rail (12a, 12a′; 12b, 12b′; 12c, 12c′; 12d, 12d′; 12e, 12e′; 12f, 12f′; 12g, 12g′), characterized in that At least one clamping element (54a, 54b, 54c, 54d, 54e, 54f, 54g), on which at least one fixing element (34a, 34b, 34c, 34d, 34e, 34f, 34g) is arranged, wherein the clamping element (54a, 54b, 54c, 54d, 54e, 54f, 54g) is configured to enclose the at least one wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g), wherein the clamping element The hoop element (54a, 54b, 54c, 54d, 54e, 54f, 54g) is configured to at least partially enclose the at least one scraping strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g), wherein the at least one fixing element (34a, 34b, 34c, 34d, 34e, 34f, 34g) has at least one contact area with the at least one scraping strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g).

2. The scraper blade device according to claim 1, characterized in that at least one further fixing element (36a, 36a', 36a", 36a"', 36b, 36c, 36d, 36e, 36f, 36g) which is designed differently from the at least one spring rail (12a, 12a'; 12b, 12b'; 12c, 12c'; 12d, 12d'; 12e, 12e'; 12f, 12f'; 12g, 12g'), the at least one further fixing element in the assembled state at least in order to reduce the at least one scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) relative to the wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g) and / or the spring rail (12a, 12a'; 12b, 12b'; 12c, 12c'; 12d, 12d'; 12e, 12e'; 12f, 12f'; 12g, 12g ') and / or at least one partial element of the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) is arranged in a gap relative to at least one scraper lip (26a, 26b, 26c, 26d, 26e, 26f, 26g) for scraping between the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) and the wind deflector unit (14a, 14b, 14c). A magnetic force lock, a material lock and / or a shape lock produced by deformation of the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) are established between the scraper strip units (22a, 22b, 22c, 22d, 22e, 22f, 22g) and / or the spring rails (12a, 12a′; 12b, 12b′; 12c, 12c′; 12d, 12d′; 12e, 12e′; 12f, 12f′; 12g, 12g′).

3. The scraper blade device according to claim 2, characterized in that The at least one further fixing element (36a, 36a', 36a", 36a'", 36b, 36c, 36d, 36e, 36f, 36g) is arranged on a side of the scraper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) opposite to the at least one fixing element (34a, 34b, 34c, 34d, 34e, 34f, 34g).

4. The wiper blade device according to any one of claims 1 to 3, characterized in that At least one fixing element (34a, 34b, 34c, 34d, 34e, 34f, 34g) is arranged in the area between the at least one scraper lip (26a, 26b, 26c, 26d, 26e, 26f, 26g) and the at least one spring rail (12a, 12a′, 12b, 12b′, 12c, 12c′, 12d, 12d′, 12e, 12e′, 12f, 12f′, 12g, 12g′).

5. The wiper blade device according to any one of claims 1 to 3, characterized in that The at least one fastening element (34a, 34b, 34c, 34d, 34e, 34f, 34g) extends at least substantially over the entire main extension (38a, 38b, 38c, 38d, 38e, 38f, 38g) of the wiper blade device.

6. The wiper blade device according to any one of claims 1 to 3, characterized in that The at least one fastening element (34a, 34b, 34c, 34d, 34e, 34f, 34g) is designed integrally with the wind deflector unit (14a, 14b, 14c, 14d, 14e, 14f, 14g).

7. The wiper blade device according to any one of claims 1 to 3, characterized in that The at least one fastening element (34a, 34b, 34c, 34d, 34e, 34f, 34g) is at least partially surrounded by partial elements of the at least one wiper strip unit (22a, 22b, 22c, 22d, 22e, 22f, 22g) in the assembled state.

8. The scraper blade device according to claim 1, characterized in that The at least one clamping element (54a) at least partially surrounds the at least one wind deflector unit (14a).

9. The wiper blade device according to any one of claims 1 to 3, characterized in that The at least one fastening element (34c, 34f) is designed as an adhesive connection.

10. The wiper blade device according to any one of claims 1 to 3, characterized in that The at least one fixing element (34e) is designed as at least one magnet.

11. The wiper blade device according to any one of claims 1 to 3, characterized in that The at least one fastening element (34a, 34b, 34g) is designed as a tooth element.

12. The wiper blade device according to any one of claims 1 to 3, characterized in that The at least one fastening element (34d) is designed as a rail element.

Images