Tab connection device with slider

Abstract

The present invention relates to a windshield wiper assembly comprising: at least one wiper blade adapter (22) for securing a wiper blade strip (32), the at least one wiper blade adapter having at least one wiper blade adapter element (34, 36); a wiper arm (16) having at least one wiper arm adapter (24), the at least one wiper arm adapter being configured for direct and detachable connection with the wiper blade adapter element (34); and a locking unit (38) configured in a secured position for securing at least one wiper blade adapter (22) to at least one wiper arm adapter (24) in an installed state, and configured to move the locking unit (38) from the secured position to the unsecured position and / or from the unsecured position to the secured position, at least substantially parallel to the main extension direction of the wiper arm (16). It is proposed that the locking unit (38) has at least one safety element (40), which is guided on both sides of the longitudinal direction (42) on the wiper blade adapter (22), and in particular the wiper blade adapter element (34).

Description

Background Technology

[0001] A window wiper assembly has been proposed in printed document DE 10 2010 052 315 A1, comprising: at least one wiper blade adapter for securing the wiper blade strip, the at least one wiper blade adapter having at least one wiper blade adapter element; a wiper arm having at least one wiper arm adapter configured for direct and detachable connection to the wiper blade adapter element; and a locking unit configured in a secured position for securing the at least one wiper blade adapter to the at least one wiper arm adapter in an installed state, and the locking unit is configured to move from the secured position to the unsecured position and / or from the unsecured position to the secured position, at least substantially parallel to the main extension direction of the wiper arm. Summary of the Invention

[0002] The present invention relates to a window wiper assembly comprising: at least one wiper blade adapter for securing the wiper blade, the at least one wiper blade adapter having at least one wiper blade adapter element; a wiper arm having at least one wiper arm adapter configured for direct and detachable connection to the wiper blade adapter element; and a locking unit configured in a secured position for securing the at least one wiper blade adapter to the at least one wiper arm adapter in an installed state, and the locking unit being configured to move from the secured position to the unsecured position and / or from the unsecured position to the secured position, at least substantially parallel to the main extension direction of the wiper arm.

[0003] The locking unit has at least one safety element, which is guided on both sides of the wiper blade adapter, particularly the wiper blade adapter element, in a longitudinal direction. This allows for a particularly advantageous high operational reliability and / or simple installation of the window wiper unit. Furthermore, it provides a particularly advantageous reliable and / or low-maintenance window wiper unit. In particular, it enables a particularly secure connection between the safety element and the wiper blade adapter, particularly the wiper blade adapter element, preventing loss.

[0004] Furthermore, "substantially parallel" here should be understood in particular as an orientation in a plane relative to a reference direction, wherein this orientation has a deviation of less than 8°, advantageously less than 5°, and particularly advantageously less than 2° relative to the reference direction. The "main extension direction" of the object should, in this case, be understood in particular as a direction parallel to the longest side of the smallest geometric hexahedron that just completely encloses the object. In particular, the locking unit's safety position is configured to fix the wiper arm to resist movement at least substantially transverse to the main extension direction of the wiper blade. "Transverse" here should, in particular, be understood as an orientation in a direction and / or an axis relative to a reference direction and / or a reference axis, wherein this orientation is at least different from an orientation at least substantially parallel to the reference direction and / or the reference axis and is, in particular, inclined or perpendicular to the reference direction and / or the reference axis.

[0005] The longitudinal direction of the preferred wiper blade adapter is at least substantially parallel to the main extension direction of the wiper blade, especially in the installed state. In particular, the limiting portions on both sides of the retaining element have at least one force-locking and / or form-locking limiting portion along the longitudinal direction of the wiper blade adapter. "Form-locking limiting portion" should be understood in particular as applying a retaining force acting in the normal direction of the surfaces of the members mutually bound by the form-locking to each other. Preferably, the form-locking limiting portion is constructed as a protrusion and / or a recess. Preferably, the form-locking limiting portion has at least one stop or blocking element. The form-locking limiting portion may particularly have elongated slots recessed on both sides. The members are particularly in a geometrically interlocked state. "Force-locking limiting portion" should be understood in particular as applying a retaining force caused by friction to the surfaces of the members mutually bound by the force-locking to each other and / or the members mutually bound by the force-locking to each other are configured to be retractably moved away from each other and / or moved closer to each other by means of a restoring force. This force-locking limiting portion is preferably constructed as a spring element. "Spring element" should be understood in particular as a macroscopically visible element having an extension distance that, under normal operating conditions, can elastically change by at least 10%, especially at least 20%, preferably at least 30%, and particularly advantageously at least 50%, and which generates a reaction force particularly related to and preferably proportional to the change in extension distance, which reacts on the change. The "extension distance" of the element should be understood in particular as the maximum distance between two points on a plane perpendicularly projected onto the element. "Macroscopically visible element" should be understood in particular as an element having an extension distance of at least 0.5 mm, especially at least 1 mm, and preferably a maximum of 10 mm.

[0006] The locking unit is preferably configured to secure the wiper arm to the wiper blade adapter. Securement of the wiper arm to the wiper blade adapter is preferably configured to prevent the wiper arm from lifting and / or disengaging in a transverse direction to the longitudinal direction. The locking unit is particularly, at least partially, composed of a safety element, wherein the safety element is particularly integrally constructed. "Integral" should particularly be understood as being formed as a single piece. Preferably, this single piece is made from a single blank, mass block, and / or casting, particularly preferably in spray casting, especially single-part spray casting and / or multi-part spray casting. Advantageously, integral should also be understood as single-piece. Furthermore, the locking unit is preferably constructed at least largely of plastic material. Particularly preferably, the locking unit, especially together with the wiper blade and / or wiper blade adapter, is configured to be replaceable. Additionally, the locking unit preferably has a reset element. The reset element is preferably constructed as a spring element. The reset element is particularly configured to hold the locking element in a safe position, preferably in a balanced state.

[0007] Furthermore, it is proposed that the fuse element and / or wiper blade adapter element have at least one closed longitudinal guide groove for guiding the fuse element on the wiper blade adapter. This provides advantageously reliable guidance, resulting in advantageously high operational reliability for the window wiper assembly. The longitudinal guide groove extends, in particular, at least substantially parallel to the longitudinal direction of the wiper blade adapter. Preferably, the longitudinal guide groove defines a gap that opens to one side. The longitudinal guide groove can be directly fitted into the sidewall of the fuse element and / or wiper blade adapter or can be fitted onto the sidewall of the fuse element and / or wiper blade adapter by means of a protrusion. The gap defined by the longitudinal guide groove preferably has an irregular cross-section in a plane perpendicular to the main extension direction of the longitudinal guide groove. The irregular cross-section of the gap particularly has an outer peripheral area not completely surrounded by the fuse element and / or wiper blade adapter element. Particularly preferably, this irregular cross-section is constructed as a rectangular, T-shaped, C-shaped, Omega-shaped, L-shaped, triangular, polygonal, or a combination of cross-sections. The longitudinal guide groove is particularly configured to close on at least one end face side. Preferably, the longitudinal guide groove has a force-locking and / or form-locking restraint on at least one end face side. Preferably, the longitudinal guide groove is configured to close on both end face sides.

[0008] Furthermore, it is proposed that the safety element and / or wiper blade adapter have at least one guide protrusion, which is configured to engage with at least one longitudinal guide groove. This provides advantageously high guiding quality for reliably securing the components of the window wiper assembly. Additionally, it provides advantageously reliable guiding for advantageously high operational reliability of the window wiper assembly. Preferably, the guide protrusion has an irregular cross-section in a plane perpendicular to its main extension direction. Preferably, the irregular cross-section of the guide protrusion is configured as a cross-section of a material, particularly a geometric structure of the material. Preferably, the irregular cross-section is configured as a U-shaped, T-shaped, circular, C-shaped, omega-shaped, L-shaped, or V-shaped cross-section, or a polygonal cross-section, or a combination of cross-sections. Preferably, the cross-sections of the longitudinal guide groove and the guide protrusion are configured to be related to each other. Viewed in a coaxial orientation of the main extension directions of the longitudinal guide groove and the guide protrusion, the inner peripheral surface of the longitudinal guide groove particularly at least largely encloses the outer peripheral surface of the guide protrusion. The term "at least largely" should be understood herein to mean at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85%, and particularly advantageously at least 95%. The guide protrusions are particularly configured as protrusions with irregular cross-sections on the safety element and / or wiper blade adapter element. Preferably, the guide protrusions are integrally constructed with the safety element and / or wiper blade adapter element. Furthermore, the guide protrusions are preferably configured to be fitted into longitudinal guide grooves. Preferably, the guide protrusions are configured to be received in longitudinal guide grooves. Moreover, these irregular cross-sections are preferably configured to be geometrically consistent with each other. Particularly preferably, when viewed in an extension plane perpendicular to one of the main extension planes, these irregularly shaped cross-sections configured to be relatively enlarged and / or reduced relative to each other.

[0009] Furthermore, it is proposed that the safety element is connected to the wiper blade adapter element in a way that prevents loss. This allows for advantageously high reliability of the windshield wiper assembly. It also provides advantageously high operational reliability and / or installability. In particular, it ensures the replacement of the safety element along with the wiper blade. Material fatigue of the safety element can be avoided, especially through continuous replacement. The safety element particularly has a form-locking connection with the wiper blade adapter element. Preferably, this form-locking connection is configured to allow relative movement between the safety element and the wiper blade adapter element within a restricted range of movement along a first spatial direction. Preferably, this first spatial direction is at least substantially parallel to one of the main extension directions of the longitudinal guide groove and / or guide protrusion. Preferably, this form-locking connection is configured to restrict further relative movement of the safety element along all other spatial directions different from the first spatial direction. This further relative movement is preferably limited to bearing clearances and / or component tolerances and / or elastic strain and / or thermal expansion. Furthermore, the form-locking connection is particularly configured to preferably prevent the safety element and the wiper blade adapter element from unintentionally separating from each other.

[0010] Furthermore, it is proposed that the at least one wiper blade adapter element has a connection area that, in the installed state, is at least substantially contained or surrounded by the wiper arm adapter, wherein, in the mounting position of the locking unit, the connection area is at least substantially not covered by the locking element, particularly in the direction perpendicular to the longitudinal direction of the wiper blade adapter. This achieves advantageously operator-friendly and / or efficient installability of the windshield wiper assembly. In particular, it allows for installation of the wiper arm adapter from a direction perpendicular to the longitudinal direction of the wiper blade adapter. Preferably, the connection area is at least largely contained by the wiper arm adapter in the installed state. Preferably, the connection area is at least largely contained by the locking element when the wiper arm adapter is secured by the locking unit. The locking unit, particularly when the wiper arm adapter is secured by the locking unit, at least largely contains the wiper arm adapter element. The longitudinal direction of the wiper blade adapter element should preferably be understood as also being the longitudinal direction of the wiper blade adapter. Preferably, viewed in a plane perpendicular to the longitudinal direction of the wiper blade adapter element, the outer periphery of the wiper blade adapter element, especially in the installed state, is at least largely surrounded by the inner periphery of the wiper arm adapter. Additionally, preferably, viewed in a plane perpendicular to the longitudinal direction of the wiper blade adapter, the outer periphery of the wiper arm adapter is at least largely not covered by the inner periphery of the safety element. Preferably, the safety element, in the installed position, has a maximum distance relative to the wiper arm adapter element in the longitudinal direction, preferably limited by one of the limiting portions on either side. Furthermore, the wiper arm adapter preferably does not have a safety element, especially in the detached state. The connection area is preferably configured to releasably receive the wiper arm. Additionally, the connection area is preferably configured to directly receive the wiper arm, especially the wiper arm adapter. Preferably, the connection area of ​​the wiper arm adapter is configured to hold the wiper arm in a direction at least substantially parallel to the main extension direction of the wiper arm. Particularly preferably, the connection area, in the installed state, is configured to form-lock the wiper arm to resist possible movement in a direction at least substantially parallel to the main extension direction of the wiper arm. The preferred connection area has at least one connecting element. This at least one connecting element is particularly configured as a notch or a connecting protrusion. The notch is preferably configured as a hook, groove, or pocket. The connecting element is preferably configured as a tab, bolt, hook element, tongue protrusion, and / or stop element. Particularly preferably, the wiper arm adapter has another connecting element associated with the connecting element of the wiper blade adapter. The connecting element is preferably configured as a connecting protrusion, and the other connecting element is configured as an associated notch. The connection area, in the installed state, is particularly configured to prevent relative movement between the wiper arm adapter and the wiper blade adapter element in a direction at least substantially parallel to the main extension direction of the wiper arm. The relative movement between the wiper arm adapter and the wiper blade adapter element is preferably limited to clearances caused particularly by component tolerances and / or by the modulus of elasticity and / or by bearings and / or by temperature.

[0011] Furthermore, it is proposed that the safety element has a manually operable slider. This provides advantageously high operational comfort during installation and / or removal. It also ensures a reliable installation process. Preferably, the slider is manually movable and supported on the wiper blade adapter element. Preferably, the manually movable component is configured to be movable by the average human hand force. The slider particularly has a grip area, which is preferably at least partially constructed as a recess on the outer surface of the slider.

[0012] Furthermore, it is proposed that a locking element is configured to lock the wiper arm adapter and wiper blade adapter in the operating position along a direction at least substantially perpendicular to the wiper surface. This allows for advantageous and reliable fastening of the window wiper assembly. Preferably, the locking element is configured to secure the wiper arm adapter in the operating position to prevent the wiper blade adapter from lifting in a direction at least substantially perpendicular to the wiper surface. "Operating position" in this context should be understood in particular as the position of the installed wiper blade, configured to clear moisture, humidity, and / or dirt from the window sill, particularly vehicle window sill. The term "substantially perpendicular" is hereby specifically defined as an orientation relative to a reference direction, wherein this direction and the reference direction, particularly when viewed in the projection plane, form an angle of 90° and this angle has a maximum deviation of particularly less than 8°, advantageously less than 5°, and particularly advantageously less than 2°. The wiper surface is particularly defined by the longitudinal extension direction of the wiper blade and the direction of movement of the wiper arm. The wiper surface can particularly be curved or flat. The wiper blade is configured to be at least substantially associated with at least a portion of the outer surface of a window panel, particularly a glass window panel and / or plastic window panel and / or observation window panel and / or windshield panel of a vehicle. Particularly preferably, the curvature of the wiper blade in its longitudinal extension direction is adapted to the curvature of the outer surface of the window panel. Preferably, the wiper blade is associated with the outer surface of the window panel. Particularly preferably, the wiper blade is at least substantially ground-like on at least a portion of the outer surface of the window panel. A safety element specifically prevents the wiper arm adapter from separating from the wiper blade adapter in an operating position along a direction at least substantially perpendicular to the wiper blade.

[0013] Furthermore, it is proposed that the wiper blade adapter has at least one additional wiper blade adapter element, which is fixedly connected to the wiper blade strip and is configured to tiltably support the at least one wiper blade adapter element. This additional wiper blade adapter element has at least one blocking protrusion configured to prevent the locking unit from moving from the locked position to the released position in the relative orientation of the wiper blade adapter element with respect to the additional wiper blade adapter element. This achieves advantageous and reliable installability, thereby preventing errors during installation. Furthermore, it advantageously and easily prevents unintentional disassembly. The tiltable support is particularly configured to tilt the main extension direction of the one wiper blade adapter element relative to the main extension direction of the at least one additional wiper blade adapter element. Preferably, the tiltable support is constructed as a radial bearing. The radial bearing is preferably constructed as a sliding bearing or a rolling bearing. Particularly preferably, the tiltable support is constructed as a radial sliding bearing. Preferably, the locking element exposes at least a large portion of the engagement area of ​​the at least one wiper blade adapter element in the released position. Preferably, the blocking protrusion is integrally constructed with the at least one additional wiper blade adapter element. The blocking protrusion is particularly configured to prevent relative movement of the at least one wiper blade adapter element relative to the at least one additional wiper blade adapter element along the longitudinal direction of the at least one wiper blade adapter element. The blocking protrusion is preferably configured to prevent relative movement of the safety element and the at least one wiper blade adapter element from the safety element's safety position to the safety element's safety-disarmed position. The main extension direction of the at least one wiper blade adapter element is at least substantially parallel to the main extension direction of the at least one additional wiper blade adapter element, particularly in at least one relative orientation. Preferably, the blocking protrusion is configured in this orientation to prevent the safety element from moving from the safety position to the safety-disarmed position. The blocking protrusion is preferably arranged as a protrusion on the outer surface of the additional wiper blade adapter element. Furthermore, the blocking protrusion extends, particularly at least 1 mm, preferably at least 2 mm, preferably at least 3 mm, and particularly preferably at least 5 mm, in a direction perpendicular to the outer surface of the additional wiper blade adapter element.

[0014] In addition, a window wiper with a window wiper assembly, particularly the aforementioned window wiper assembly, is proposed. This provides a window wiper that is advantageously reliable in operation and / or easy to install. The design of the window wiper according to the invention allows for an advantageous, reliable, and simple connection of the wiper blade to the wiper arm. This window wiper assembly prevents the wiper blade from being accidentally or incorrectly installed on the wiper arm. A high level of operator comfort can be achieved when installing the wiper blade on the wiper arm, especially because the operator is provided with a clearly identifiable installation path for securing the wiper blade. Advantageous and quick installation of the wiper blade is possible. Preferably, the window wiper comprises a wiper blade and a wiper arm. Furthermore, the window wiper preferably has a spring rail and / or a wiper lip and / or a spring rail receiving channel and / or a windshield and / or at least one fluid channel and / or at least one inlet channel and / or at least one wiper blade end cap and / or a wiper blade unit with a wiper blade body. Preferably, the wiper blade can be fastened to the wiper arm via a wiper blade adapter and a wiper arm adapter. In particular, the wiper blade is supported relative to the wiper arm in a tiltable, and in particular, swingable manner, via a wiper blade adapter, particularly a wiper blade adapter element, and / or said additional wiper blade adapter element. Preferably, the wiper blade can be separated from the wiper arm via a window wiper assembly in the released safety position.

[0015] The window wiper device according to the invention and / or the window wiper according to the invention should not be limited to the applications and embodiments described above. The window wiper device according to the invention and / or the window wiper according to the invention may, in order to satisfy the working mode described herein, have a number that deviates from the number of individual elements, components, and units mentioned herein. Furthermore, values ​​within the mentioned boundaries of the range given in this disclosure should also be considered disclosed and freely usable. Attached Figure Description

[0016] Further advantages will become apparent from the following description of the accompanying drawings. Embodiments of the invention are illustrated in the drawings. The drawings, description, and claims cover numerous features that appear in combination. Those skilled in the art will also appreciate these features individually, as well as in other meaningful combinations. Wherein:

[0017] Figure 1 A schematic diagram of a window wiper according to the invention, having a window wiper device according to the invention in its installed state, is shown.

[0018] Figure 2 A schematic diagram showing the windshield wiper arm adapter, wiper blade adapter, and locking unit of the window wiper assembly according to the invention in a disassembled state with the safety latches removed.

[0019] Figure 3A schematic diagram showing the safety positions of the wiper arm adapter, wiper blade adapter, and locking unit of the window wiper assembly according to the invention in the installed state.

[0020] Figure 4 The cross-section is shown in the installed state in a plane perpendicular to the longitudinal direction of the window wiper assembly. Detailed Implementation

[0021] exist Figure 1 The diagram shows a windshield wiper 10 of a vehicle 12, which is disposed on the front windshield 14 of the vehicle 12. The windshield wiper 10 includes a wiper arm 16 and a wiper blade 18. The windshield wiper 10 has a windshield wiper assembly 20. The wiper blade 18 is fastened to the wiper arm 16 via a wiper blade adapter 22 and a wiper arm adapter 24. The windshield wiper 10 includes a drive unit 26 having a drive shaft 28, via which the wiper arm 16 can be oscillatingly driven. In particular, during the oscillating movement of the wiper arm 16, the wiper blade 18 moves along the front windshield 14 in a wiper direction 30 that is at least substantially perpendicular to the main extension direction of the wiper blade 18. However, other designs for the windshield wiper 10 are also conceivable.

[0022] exist Figure 2 The diagram shows a window wiper assembly 20 in its installed position with the safety removed. The window wiper assembly 20 has a wiper blade adapter 22 for securing the wiper blade 32, the wiper blade adapter having two wiper blade adapter elements 34, 36. Additionally, the window wiper assembly 20 has a wiper arm 16 with a wiper arm adapter 24. The wiper arm adapter 24 is configured for direct, detachable connection to the first wiper blade adapter element 34. Furthermore, the window wiper assembly 20 has a locking unit 38, configured in the secured position to secure the at least one wiper blade adapter 22 to the wiper arm adapter 24 in the installed state. Additionally, the locking unit 38 is configured to move from the secured position to the unsecured position and / or from the unsecured position to the secured position, at least substantially parallel to the main extension direction of the wiper arm 16. Figure 3A window wiper assembly 20 with a wiper arm 16 mounted in the locked position of the locking unit 38 is shown. Furthermore, the locking unit 38 has a reset element (not shown in detail) configured to hold the locking unit 38 in the locked position. The reset element is configured as a spring, configured to apply a reset force to the locking unit 38 in the direction of the locked position. The locking unit 38 has a locking element 40, which is guided along both sides of the longitudinal direction 42 on the wiper blade adapter 22, particularly the first wiper blade adapter element 34. In this embodiment, the first wiper blade adapter element 34 has two closed longitudinal guide slots 44 for guiding the locking element 40 on the wiper blade adapter 22. Viewed in a plane perpendicular to the main extension direction of the longitudinal guide slots 44, these two closed longitudinal guide slots 44 have partially closed peripheral surfaces for receiving and / or guiding a guide protrusion 46. The longitudinal guide slots 44 are arranged on two opposing lateral regions of the first wiper blade adapter element 34 that are at least substantially parallel to each other.

[0023] exist Figure 4 A schematic cross-sectional view of the window wiper assembly 20 is shown in the diagram, passing through the longitudinal guide groove 44. The longitudinal guide groove 44 is integrally constructed with one of the side regions of the first wiper blade adapter element 34. Furthermore, the longitudinal guide groove 44 defines a gap in each side region of the first wiper blade adapter element 34. This gap defined by one of the longitudinal guide grooves 44 has a rectangular cross-section in a plane perpendicular to the main extension direction of the longitudinal guide groove 44. The rectangular gap is surrounded by the longitudinal guide groove 44 on three sides. The corresponding longitudinal guide groove 44 is constructed to be closed on its end face side along a direction parallel to the main extension direction of the corresponding longitudinal guide groove 44. The gap in the first wiper blade adapter element 34 defined by the longitudinal guide groove 44 is restricted by the longitudinal guide groove 44 on both end face sides. The end face sides are constructed to be closed by means of shape-locking restrictive portions. The shape-locking limiting part is configured as a stop, which is provided to prevent the safety element 40 with guide protrusion 46 from moving beyond the maximum extension distance of the longitudinal guide groove 44.

[0024] Additionally, the safety element 40 has two guide protrusions 46. The guide protrusions 46 are arranged on the inner peripheral surface of the safety element 40. Furthermore, the guide protrusions 46 are arranged on opposite side regions of the inner peripheral surface of the safety element 40. One of the side regions is integrally constructed with one of the guide protrusions 46. The guide protrusions 46 are respectively configured to engage with one of the two longitudinal guide grooves 44. The outer peripheral surface of the guide protrusion 46 is configured to associate with the inner peripheral surface of the longitudinal guide groove 44. The inner peripheral surface of the longitudinal guide groove 44 is configured to movably receive the outer peripheral surface of the guide protrusion 46. Additionally, the outer peripheral surface of the guide protrusion 46 is configured to engage with the inner peripheral surface of the longitudinal guide groove 44. Viewed in a plane perpendicular to the main extending direction of the guide protrusion 46, the cross-section of the guide protrusion 46 on its outer peripheral surface is at least partially rectangular. The rectangular shape of the guide protrusion 46 is reduced compared to the rectangular shape of the cross-section of the longitudinal guide groove 44.

[0025] Similarly, it is conceivable that the safety element 40 has two longitudinal guide slots 44 and the wiper blade adapter element 34 has two guide protrusions 46.

[0026] Furthermore, the safety element 40 is connected to the first wiper blade adapter element 34 in a way that prevents loss. The guide protrusion 46 is arranged in a corresponding closed longitudinal guide groove 44 in the installed state. The maximum relative movement of the safety element 40 relative to the first wiper blade adapter element 34 is limited by the shape-locking limiting portion of the longitudinal guide groove 44. The longitudinal guide groove 44 and the guide protrusion 46 are configured in the installed state to shape-lock the maximum relative movement of the safety element 40 relative to the first wiper blade adapter element 34 in all spatial directions.

[0027] In addition, the first wiper blade adapter element 34 has a connection area 48, which is at least substantially covered by the wiper arm adapter 24 in a separate installed state. In this separate installed state, the wiper arm adapter 24 is directly and detachably connected to the first wiper blade adapter element 34. Figure 4As shown, the connecting region 48 has two connecting elements in each sidewall region of the wiper blade adapter element 34. The connecting elements of the wiper blade adapter element 34 are configured as protrusions. These protrusions have a rectangular cross-section. The wiper arm adapter 24 has a notch configured to associate with the protrusion as a connecting element. In the installed state with the wiper arm 16 and wiper blade adapter 22, the connecting elements of the wiper arm adapter 24, configured as notches, partially grip the connecting elements of the wiper blade adapter 22, configured as protrusions, on their outer peripheral surfaces. These connecting elements, in the installed state, are configured to form-lockingly prevent and / or restrict relative movement of the wiper blade adapter 22 and the wiper arm adapter 24 along the main extension direction of the wiper arm 16. The locking element 40 is in the disengaged position in the other installed state. In the disengaged position of the locking unit 38, the connecting region 48 is not covered by the locking element 40 in a direction perpendicular to the longitudinal direction 42 of the wiper blade adapter 22. In addition, the safety element 40 has the maximum possible relative spacing to the first wiper blade adapter element 34 in the removed safety position of the other installed state, especially limited by the limiting portions on both sides.

[0028] Additionally, the safety element 40 has a manually operable slider 50. This manually operable slider 50 has a hand-held area. This hand-held area is constructed as a recessed area in the outer peripheral surface of the slider 50. The slider 50 is configured for manual operation of the safety element 40.

[0029] Furthermore, a locking element 40 is configured to lock the wiper arm adapter 24 and wiper blade adapter 22 in an operating position along a direction at least substantially perpendicular to the wiper surface 52. The locking element 40 is in a locked position in this operating position. In the locked position, the locking element 40 encloses the wiper arm adapter 24 on three outer surfaces. Additionally, the wiper surface 52 is configured to associate with a portion of the outer surface of the windshield 14. The maximum possible movement of the wiper blade 18 on the windshield 14 in the operating position defines the wiper surface 52.

[0030] In addition, the wiper blade adapter 22 has an additional wiper blade adapter element 36, which is fixedly connected to the wiper blade 32. This additional wiper blade adapter element 36 is specifically fixedly connected to at least one spring rail of the wiper blade 32, particularly by welding. Furthermore, the additional wiper blade adapter element 36 is configured to tiltably support the first wiper blade adapter element 34. The first wiper blade adapter element 34 and the additional wiper blade adapter element 36 are tiltably supported relative to each other about a common axis. This tiltable support can be constructed as a radial sliding bearing. The tiltable support is configured to tilt the main extension direction of the first wiper blade adapter element 34 and the main extension direction of the additional wiper blade adapter element 36 relative to each other. Additionally, the additional wiper blade adapter element 36 has at least one blocking protrusion 54, which is configured to prevent the locking unit 38 from moving from the safety position to the safety release position in a relative pose of the wiper blade adapter element 34 relative to the additional wiper blade adapter element 36. In the aforementioned relative pose, the main extension direction of the at least one wiper blade adapter element 34 is at least substantially parallel to the main extension direction of the other wiper blade adapter element 36. The blocking protrusion 54 is integrally constructed with the wiper blade adapter element 34. Furthermore, the blocking protrusion 54 is constructed as a protrusion on one of the sidewall regions of the sidewall region of the wiper blade adapter element 34. The blocking protrusion 54 is configured in the aforementioned relative pose to prevent the safety element 40 from unintentionally moving from the safety position to the safety-disarmed position.

Claims

1. Window wiper device, with at least one wiper blade adapter (22) for fastening a wiper blade strip (32), with at least one wiper blade adapter element (34), with a wiper arm (16) with at least one wiper arm adapter (24) which is provided for a direct, releasable coupling with the wiper blade adapter element (34), and with a locking unit (38) which, in a secured position, is provided for fixing the at least one wiper blade adapter (22) in an installed state on the at least one wiper arm adapter (24) and which is provided for moving the locking unit (38) at least substantially parallel to the main extension direction of the wiper arm (16) from the secured position into a de-secured position or from the de-secured position into the secured position, characterized in that the locking unit (38) is configured together with the wiper blade adapter (22) to be replaceable, wherein the locking unit (38) has at least one securing element (40) which is guided on the wiper blade adapter element (34) on both sides in a longitudinal direction (42) with limited play, wherein the securing element (40) is connected in a form-locking manner with the wiper blade adapter element (34), the securing element (40) or the wiper blade adapter element (34) having at least one longitudinal guide slot (44) which is closed on both end face sides for guiding the securing element (40) on the wiper blade adapter (22), wherein the wiper blade adapter (22) has at least one further wiper blade adapter element (36) which is fixed in position in connection with the wiper blade strip (32) and which is provided for tiltable bearing of the at least one wiper blade adapter element (34), wherein the further wiper blade adapter element (36) has at least one blocking protrusion (54) which is provided for blocking a relative movement of the at least one wiper blade adapter element (34) with respect to the at least one further wiper blade adapter element (36) in the longitudinal direction of the at least one wiper blade adapter element (34) in order to block a movement of the locking unit from the secured position into the de-secured position in at least one relative position of the at least one wiper blade adapter element (34) with respect to the at least one further wiper blade adapter element (36). The securing element (40) or the at least one wiper blade adapter element (34) has at least one guide protrusion (46) which is provided for being inserted into the at least one longitudinal guide slot (44). The securing element (40) is connected to the at least one wiper blade adapter element (34) in a loss-proof manner.

2. The window panel wiper device of claim 1, wherein, The securing element (40) is connected to the at least one wiper blade adapter element (34) in a loss-proof manner.

3. The window panel wiper device of claim 1 or 2, wherein, ​ 4. The window panel wiper device of claim 1 or 2, wherein, The at least one wiper blade adapter element (34) has a coupling region (48) which, in the mounted state, is held at least substantially by the wiper arm adapter (24), wherein the coupling region (48) is at least substantially uncovered by the securing element (40) in the removed-securing position of the locking unit (38).

5. The window panel wiper device of claim 4, wherein, The coupling region (48) is at least substantially uncovered by the securing element (40) in the removed-securing position of the locking unit (38) in a direction perpendicular to the longitudinal direction (42) of the wiper blade adapter (22).

6. The window panel wiper device of claim 1 or 2, wherein, The securing element (40) has a manually operable slide (50).

7. The window panel wiper device of claim 1 or 2, wherein, The securing element (40) is designed to lock the wiper arm adapter (24) and the wiper blade adapter (22) in a working position in a direction at least substantially perpendicular to a wiper face (52).

8. A window pane wiper having a window pane wiper device according to any one of the preceding claims.

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