Adapter unit

Abstract

The invention relates to an adapter unit, which is arranged to connect a wiper blade to a wiper arm, in particular to connect them detachably, the adapter unit having a windshield surface, which is arranged to deflect inflowing air and press the wiper blade against a vehicle window, wherein the windshield surface is surrounded by a windshield surface edge and the windshield surface edge has: · at least one windward side surface, which extends as far as possible in the direction of the wiper arm, and · at least one leeward side surface, which extends as far as possible in the direction of the wiper arm, and · at least one right side, which is arranged between the windward side surface and the leeward side surface and is arranged On the wiper arm side of the adapter, a portion for connecting the adapter unit to the wiper arm is provided on the wiper arm side, and at least one left rear side, which is adjacent to the leeward side and is arranged on the side of the adapter opposite to the wiper arm side, and at least one left front side, which is adjacent to the windward side and is arranged on the side of the adapter opposite to the wiper arm side, characterized in that the leeward side and the right side span a rear angle between 110° and 160°, preferably between 120° and 150°, and particularly preferably between 130° and 140°.

Description

Technical Field

[0001] The invention relates to an adapter unit which is provided for connecting a wiper blade to a wiper arm, in particular for detachable connection, and which has a wind deflector surface which is provided for deflecting inflowing air and for pressing the wiper blade against a vehicle windshield. Background Art

[0002] Wiper devices have been proposed, which include a wiper arm and a wiper blade and an adapter unit for detachably coupling the wiper arm to the wiper blade. These wiper devices have the disadvantage that the wiper arm always has to exert a high pressing force to press the wiper blade onto the vehicle windshield in order to ensure sufficient wiping efficiency. Summary of the invention

[0003] The invention discloses an adapter unit which is provided for connecting a wiper blade to a wiper arm, in particular for detachable connection, the adapter unit comprising a windshield surface which is provided for deflecting inflowing air and for pressing the wiper blade against a vehicle windshield, wherein the windshield surface is surrounded by a windshield surface edge and the windshield surface edge comprises:

[0004] at least one windward side which extends as far as possible in the direction of the wiper arm, and

[0005] at least one leeward side which extends as far as possible in the direction of the wiper arm, and

[0006] at least one right side, which is arranged between the windward side and the leeward side and on the wiper arm side of the adapter, on which is provided the means for coupling the adapter unit to the wiper arm, and

[0007] at least one rear left side, which adjoins the leeward side and is arranged on the side of the adapter which is opposite the wiper arm side, and

[0008] at least one left front side, which adjoins the side facing the wind and is arranged on the side of the adapter which is opposite the wiper arm side,

[0009] It is characterized in that the leeward side and the right side span a rear angle of between 110° and 160°, preferably between 120° and 150°, particularly preferably between 130° and 140°.

[0010] This has the advantage that the windshield surface presses the wiper blade onto the vehicle window based on the driving wind it faces during fast driving, which increases the total pressing force of the wiper blade onto the vehicle window and improves the wiping efficiency. The required pressing force of the wiper arm to press the wiper blade onto the vehicle window is reduced in this way. A more advantageous and / or simpler and / or more reliable and / or more compact wiper arm can be used with a smaller pressing force, in particular with a smaller spring for applying the pressing force. In addition, by using the windshield surface according to the present invention, it is prevented that the adapter unit or the wiping device including the adapter unit, the wiper blade and the wiper arm generates a force due to unfavorable aerodynamic forces during fast driving, which opposes the required pressing force and thus deteriorates the wiping efficiency or even makes wiping impossible. By the adapter unit according to the present invention, it is ensured that the generated force presses the wiper blade onto the vehicle window based on aerodynamic effects, in particular wind, in particular driving wind. By making the first and second facets respectively have other geometric shapes and / or other orientations, an accurate setting of the pressing force, in particular the orientation of the pressing force, is achieved.

[0011] The edge of the windshield surface advantageously extends along the outer circumference of the windshield surface. The edge of the windshield surface is in particular the boundary of the windshield surface. The left rear side advantageously adjoins the left front side.

[0012] The adapter unit can be constructed in one piece with the windshield. In this context, "in one piece" refers in particular to a material connection, for example by welding and / or adhesive bonding, and a particularly advantageous shaping, for example by production with castings and / or by production with a single-component casting method or a multi-component casting method.

[0013] The adapter unit advantageously comprises a wiper arm coupling element which is provided for direct or indirect coupling to a wiper arm. The adapter unit is advantageously formed integrally with the wiper arm coupling element.

[0014] The adapter unit advantageously comprises a wiper blade connection element which is provided for direct or indirect connection to a wiper blade. The adapter unit is advantageously formed integrally with the wiper blade connection element.

[0015] It is particularly advantageous if the wind deflector surface forms an angle between 25° and 75°, preferably between 40° and 60° with the wind inflow direction. In this way, good aerodynamic properties of the adapter unit are achieved with a sufficiently large adapter unit construction space, in particular for the placement of the wiper arm coupling element.

[0016] The principal angle refers to the angle that the windshield has with respect to the wind inflow direction. The principal angle is advantageously measured around the direction of the wiper arm. A positive principal angle between 0° and 90° describes a windshield that is at least partially turned in the wind inflow direction. The closer the principal angle is to 90°, the more the windshield is turned in the wind inflow direction. The wind inflow direction is intended to mean the direction in which the driving wind flows in when the adapter unit mounted on the vehicle windshield or the wiping device comprising the adapter unit, the wiper blade and the wiper arm is not wiped and is in a stationary state.

[0017] The wiper arm direction is to be understood as a direction which, in particular in the basic position, is arranged in the direction of the maximum longitudinal extension of the wiper arm mounted on the adapter unit. In the non-mounted state, the wiper arm direction is the direction of the adapter unit, in which direction the mounted wiper arm points, in particular in the basic position.

[0018] The main angle is advantageously extended between the wind inflow direction and the projection of the wind inflow direction onto the windshield, wherein the projection is advantageously performed along a projection plane, the wind inflow direction is in the projection plane and the projection plane is arranged perpendicularly or as perpendicularly as possible to the wiper arm direction. It is also possible that the projection plane is extended by the wind inflow direction and the normal vector or the average normal vector of the windshield. In a curved or non-flat windshield, it is conceivable that the main angle is extended between the wind inflow direction and the tangential plane, wherein the tangential plane is in a marked point of the windshield, such as the midpoint, or is a tangential plane of the average normal vector of the windshield. The average normal vector is a vector that is the average of all or almost all normal vectors of the windshield.

[0019] The side facing the wind is in particular a side of the windshield, in particular a part of an edge of the windshield, which is arranged closest to the wind inflow direction in a non-wiping, stationary state of a wiper device mounted on a vehicle window and comprising a wiper arm adapter unit, a wiper blade and a wiper arm, so that the driving wind first flows through the side facing the windshield or hits the side facing the wind. The windshield is preferably configured such that the side facing the wind is arranged at least partially perpendicularly or as nearly perpendicularly as possible to the wind inflow direction in a non-wiping, stationary state of a wiper device mounted on a vehicle window.

[0020] The leeward side is in particular a side of the windshield, in particular a part of the edge of the windshield, which is arranged farthest from the wind inflow direction in the unwiped static state of the wiper device including the wiper arm adapter unit, the wiper blade and the wiper arm mounted on the vehicle windshield, so that the driving wind eventually flows through the leeward side of the windshield or hits the leeward side. The windshield is preferably configured such that the leeward side is arranged at least partially perpendicular to or as nearly perpendicular to the wind inflow direction in the unwiped static state of the wiper device mounted on the vehicle windshield.

[0021] Advantageous further developments of the adapter unit are achieved by means of the features listed below.

[0022] The aerodynamics of the adapter unit are further improved if the left rear side and the left front side span a left-side angle of between 80° and 130°, preferably between 90° and 120°, particularly preferably between 100° and 110°.

[0023] If the side facing the wind is arranged with an angle of the right front side between 0.0° and 20.0°, preferably between 2.5° and 15.0°, particularly preferably between 5.0° and 10.0°, relative to the side facing the wind, the adapter unit is flowed around by the travel wind, particularly in a laminar manner. Undesirable vibrations of the adapter unit are minimized in this way.

[0024] A further improvement occurs when the left front side is arranged with an angle of between 10° and 60°, preferably between 20° and 50°, particularly preferably between 30° and 40°, to the leeward side on the left front side.

[0025] The aerodynamics of the adapter unit are further improved if the left front side is arranged with an inner angle of between 0° and 50°, preferably between 10° and 40°, particularly preferably between 20° and 30° relative to the right side.

[0026] If the windshield has a quadrilateral push-down button which is provided for detachably coupling the wiper arm to the adapter unit, and the two opposite side edges of the button contour of the button are oriented parallel to or as close to the right as possible, this has the advantage that the button is particularly shaped to facilitate flow. In this way, turbulence caused by the button is minimized.

[0027] As far as possible parallel should mean that the first axis and the second axis form an angle, which deviates from 0° by no more than 8°, advantageously by no more than 5°, and particularly advantageously by no more than 2°. As far as possible perpendicular should mean that the first axis and the second axis form an angle, which deviates from 90° by no more than 8°, advantageously by no more than 5°, and particularly advantageously by no more than 2°.

[0028] The wind deflector is advantageously designed in one piece with the button.

[0029] Advantageously, the windshield has a button which is provided for detachably connecting the wiper arm to the adapter unit, wherein the button is constructed as a locking button arranged in a button opening, wherein the locking button is constructed in such a way that when the wiper arm is locked, the locking button is arranged centrally or as centrally as possible in the button opening and when the wiper arm is not locked, the locking button abuts against an upper edge of the button opening.

[0030] If the windshield has a button, the button is provided for detachably coupling the wiper arm to the adapter unit, wherein the button is designed as a spring button with a spring for applying a restoring force, wherein the spring has an arc with at least one rib, in particular three ribs, wherein at least one rib is oriented parallel to or as parallel as possible to the radius of the arc and is provided for reinforcing the arc, which has the advantage that the desired stiffness of the arc can be precisely set with the aid of the ribs. In this way, the operating comfort of the adapter unit can be increased. The spring or the arc is particularly designed for applying an elastic restoring force so that the button moves back to the initial position again after pressing down and releasing. The windshield is advantageously constructed in one piece with the spring and / or with the at least one rib. The button is advantageously constructed in one piece with the at least one rib. The spring and / or the arc are advantageously constructed in one piece with the at least one rib.

[0031] If the adapter unit is provided for connecting the wiper arm to the wiper blade so as to be pivotable about a bearing axis, this has the advantage that an optimum contact pressure can be ensured over the entire wiping area on the vehicle windshield, in particular on curved vehicle windshields.

[0032] The adapter unit is advantageously designed such that the bearing axis is arranged parallel to or as parallel as possible to the wind inflow direction. The adapter unit is advantageously designed such that the bearing axis is arranged perpendicular to or as perpendicular as possible to the wiper arm direction. The bearing axis is advantageously arranged parallel to or as parallel as possible to the prescribed wiping direction. The bearing axis is advantageously arranged such that it is arranged parallel to or as parallel as possible to the wind inflow direction or the vehicle driving direction in the non-wiping static state of the wiper device mounted on the vehicle windshield, comprising the wiper arm adapter unit, the wiper blade and the wiper arm. The bearing axis is particularly advantageously parallel to the vehicle windshield in the state mounted on the vehicle, preferably in every position during the wiping movement.

[0033] An adapter unit comprising a wiper arm adapter unit and a wiper blade adapter unit is particularly advantageous, wherein the wiper arm adapter unit is provided for coupling to a wiper arm and the wiper blade adapter unit is provided for accommodating a wiper blade, wherein the wiper arm adapter unit comprises a wiper blade adapter unit receptacle which is provided for accommodating the wiper blade adapter unit in a manner such that it can pivot about a bearing axis. In this way, particularly favorable aerodynamics can be ensured in the connection region between the adapter unit and the wiper arm at every point in time during a wiping movement.

[0034] The wiper arm adapter unit is advantageously constructed in one piece with the windshield and / or with the wiper blade adapter unit receptacle. The wiper arm adapter unit can advantageously be firmly connected to the wiper arm, in particular so that the wiper arm cannot move relative to the wiper arm adapter unit as far as possible when connected to the wiper arm adapter unit.

[0035] A wiper blade adapter unit is to be understood in particular as an adapter which has a contact region with a wiper blade or with a wiper blade component and which can be connected to the wiper blade or with the wiper blade component, advantageously can be connected firmly, in particular in such a way that the wiper blade, in the state connected to the wiper blade adapter unit, is as far as possible immovable relative to the wiper blade adapter unit. The wiper blade adapter unit advantageously has a connecting element which is provided for being pivotably coupled to a wiper blade adapter unit receptacle of a wiper arm adapter unit. The wiper blade adapter unit is advantageously constructed in one piece with the contact region and / or with the connecting element. It is also conceivable that the wiper blade adapter unit is constructed in one piece with the wiper blade or with the wiper blade component. The wiper blade adapter unit receptacle is advantageously constructed in such a way that the bearing axis is arranged perpendicularly or as far as possible perpendicularly to the direction of the wiper arm.

[0036] Particularly advantageous is an adapter unit comprising a base element, a cover element and a wiper arm receptacle, the wiper arm receptacle being provided for receiving a wiper arm in a manner that allows it to pivot about a bearing axis, wherein the cover element is designed to be connectable to the base element and largely covers the wiper arm receptacle, wherein the cover element has a wind protection surface, wherein the base element is provided for receiving a wiper blade, and wherein the cover element is particularly designed to be firmly connectable to the base element, so that the cover element connected to the base element is largely immovable relative to the base element. In this way, particularly favorable aerodynamics can be ensured in the connection region between the adapter unit and the wiper blade at every point in time during the wiping movement.

[0037] The covering element is advantageously constructed in one piece with the windshield. The covering element advantageously has a coupling element, which is provided for connection with the bottom element. The covering element is advantageously constructed in one piece with the coupling element. The bottom element should particularly be understood to mean an adapter which has a contact area with the wiper blade or with the wiper blade component and can be connected to the wiper blade or with the wiper blade component, advantageously can be connected firmly, in particular can be connected in such a way that the wiper blade cannot move relative to the bottom element as far as possible when connected to the bottom element. The bottom element advantageously has a receiving element, which is provided for connection with the covering element or with the coupling element of the covering element. The wiper blade adapter unit is advantageously constructed in one piece with the contact area and / or with the coupling element. It is also conceivable that the bottom element is constructed in one piece with the wiper blade or with the wiper blade component. The bottom element advantageously has a wiper arm receiving portion. The bottom element is advantageously constructed in one piece with the wiper arm receiving portion. The wiper arm receiving portion is advantageously constructed in such a way that the bearing axis is arranged perpendicularly or as perpendicularly as possible to the direction of the wiper arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] An exemplary embodiment of the adapter unit according to the invention is shown in the drawings and is explained in more detail in the following description.

[0039] Figure 1 A wiper device with an adapter unit is shown;

[0040] Figure 2 A cross section of an adapter unit is shown;

[0041] Figure 3 and 4 shows a front view of the adapter unit;

[0042] Figure 5 and 6 details of the adapter unit are shown; and

[0043] Figure 7 is a section through a variant of an adapter unit. DETAILED DESCRIPTION

[0044] In the different embodiment variants, identical parts are provided with the same reference numerals.

[0045] exist Figure 1 1 schematically shows a wiper device 10 with an adapter unit 12, a wiper arm 14 and a wiper blade 16 in a side view. The wiper blade 16 is designed as a flat wiper blade. The wiper blade 16 is provided for cleaning a vehicle window 18. The adapter unit 12 has a cover element 20. The adapter unit has a bottom element 22. The wiper arm 16 has a wiper rod 24. In an embodiment, the main longitudinal extension direction of the wiper arm adapter unit is arranged parallel to the wiper arm direction 26. The main longitudinal extension direction of the wiper blade is arranged parallel to the wiper arm direction. In an advantageous embodiment variant, the main longitudinal extension direction of the wiper arm adapter unit is arranged at least as far as possible parallel to the wiper arm direction 26. In an advantageous embodiment variant, the main longitudinal extension direction of the wiper blade is arranged at least as far as possible parallel to the wiper arm direction. The cover element has a windshield 28. The windshield has a windshield edge 30. The windshield edge 30 is designed as a pentagon in the illustrated embodiment.

[0046] Figure 2 The cover element is shown in a side view in the direction 26 of the wiper arm. Figure 2 A cross section along line II-II is shown (see Figure 1 ). Figure 2 The plane of the drawing is arranged perpendicular to the wiper arm direction 26. The windshield surface 28 and the wind inflow direction 30 form a 35° main angle 32. The main angle is spread between the wind inflow direction and the tangent plane of the average normal vector 34 of the windshield surface. The tangent plane is perpendicular to Figure 2 The drawing plane is parallel to the wiper arm direction 26 and is Figure 2The angle between the tangential plane and the drawing plane is represented by a cutting angle 36. The wind shielding surface 28 is configured to be convex along the wind inflow direction.

[0047] In a variant of the adapter unit, the windshield surface is at least partially convex, in particular convex along the wind inflow direction. A surface of the adapter unit is convex, which should particularly mean that the surface is arched outward from the adapter unit. In another variant of the adapter unit, the windshield surface is at least partially concave, in particular concave along the wind inflow direction. A surface of the adapter unit is concave, which should particularly mean that the surface is arched inward into the adapter unit.

[0048] Figure 3 A front view of the cover element 20 is shown. Figure 3 The plane of the image is perpendicular to the average normal vector 34 (see Figure 2 ) arrangement. The windshield edge 30 has a windward side 38. The windshield edge 30 has a leeward side 40. The windshield edge 30 has a right side 42. The windshield edge 30 has a left rear side 44. The windshield edge 30 has a left front side 46.

[0049] The leeward side and the right side open a 135° rear angle 48. The rear angle 48 is in the windshield surface 28.

[0050] The side surface at the left rear and the side surface at the left front open an 85° left-side angle 50. The left-side angle 50 is located in the windshield surface 28.

[0051] The windward side is arranged with a right front angle 52 of 3.0° relative to the leeward side. The right front angle 52 is outside the windshield surface 28. The right front angle 52 is spread between an imaginary first auxiliary straight line 53 and the windward side. The first auxiliary line is arranged parallel to the leeward side.

[0052] The side of the left front side is arranged with a 20° angle 56° of the left front side relative to the leeward side. The angle 56 of the left front side is outside the windshield surface 28. The angle 56 of the left front side is opened between the first auxiliary straight line 53 and the side of the left front side.

[0053] The side surface at the front left is arranged with an inner angle 58 of 28° relative to the right side. The inner angle 58 is located within the windshield surface 28. The inner angle 58 is stretched between an imaginary second auxiliary straight line 60 and the right side. The second auxiliary straight line 60 is arranged parallel to the side surface at the front left.

[0054] In the exemplary embodiment, the windshield 28 has a button 62. The button is designed as a latching button and is arranged as centrally as possible in a button opening 64 (see FIG. Figure 3 )middle. Figure 4An adapter unit is shown in which the wiper arm is not latched. The pushbutton bears against the upper edge 66 of the pushbutton opening.

[0055] In the embodiment, the upper edge 66 of the button opening is oriented parallel to the windward side 38. In a variant, the upper edge 66 of the button opening is oriented as parallel as possible to the windward side 38. The lower edge 68 of the button opening opposite the upper edge 66 is oriented parallel to the windward side 38 in the embodiment. In a variant, the lower edge 68 is oriented as parallel as possible to the windward side 38.

[0056] The right edge 70 of the button opening is oriented parallel to the right side 42 in the embodiment. In a variant, the right edge 70 is oriented as parallel to the right side 42 as possible. The left edge 72 of the button opening opposite the right edge 70 is oriented parallel to the right side 42 in the embodiment. In a variant, the left edge 72 is oriented as parallel to the right side 42 as possible.

[0057] Figure 5 A detailed view of a button opening 64 with a button 62 is shown. In the exemplary embodiment, the upper side edge 74 of the button 62 is arranged parallel to the upper edge 66. The upper side edge 74 is arranged parallel to the windward side 38. In a variant, the upper side edge 74 is arranged as parallel as possible to the upper edge 66. In a variant, the upper side edge 74 is arranged as parallel as possible to the windward side 38.

[0058] In the embodiment, the lower side edge 76 of the button 62 is arranged parallel to the lower edge 68. The lower side edge 76 is arranged parallel to the windward side 38. In a variant, the lower side edge 76 is arranged as parallel as possible to the lower edge 68. In a variant, the upper side edge 76 is arranged as parallel as possible to the windward side 38.

[0059] In the embodiment, the right side edge 78 of the button 62 is arranged parallel to the right edge 70. The right side edge 78 is arranged parallel to the right side 42. In a variant, the right side edge 78 is arranged as parallel to the right edge 70 as possible. In a variant, the right side edge 78 is arranged as parallel to the right side 42 as possible.

[0060] In the embodiment, the left side edge 80 of the button 62 is arranged parallel to the left edge 72. The left side edge 80 is arranged parallel to the right side 42. In a variant, the left side edge 80 is arranged as parallel to the left edge 72 as possible. In a variant, the left side edge 80 is arranged as parallel to the right side 42 as possible.

[0061] The upper side edge 74, the lower side edge 76, the right side edge 78 and the left side edge 80 form a button contour 82 of the button 62. The button contour is the edge of the button. The right side edge 78 and the left side edge 80 are two opposite side edges of the button contour 82 of the button.

[0062] exist Figure 6 4 shows a side view of the button 62 viewed from the direction of the wiper arm 26 . Figure 6 The drawing plane is perpendicular to the wiper arm direction 26. Figure 6 It is the cross section of the button line VI-VI (see Figure 1 ). The button 62 has a spring, which is configured as an arc-shaped member 84. The arc-shaped member has three ribs 86. The ribs 86 are oriented radially to the midpoint 88 of the arc-shaped member. The ribs 86 are arranged at the outer edge of the arc-shaped member.

[0063] In the exemplary embodiment, the cover element 20 can be firmly connected to the base element 22 by means of a latching connection structure (not shown). The base element 22 has a wiper arm receptacle (not shown). The wiper arm receptacle is provided for connection to the wiper arm so that the wiper arm can be moved about the bearing axis 90 (see FIG. Figure 2 ) is pivoted or rotated. In the exemplary embodiment, the bearing axis 90 is oriented parallel to the wind inflow direction 30. The base element 22 is provided for receiving a wiper blade via a plug connection (not shown).

[0064] Figure 7 The section of an alternative embodiment of the adapter unit is shown perpendicular to the wiper arm direction 26. The adapter unit 12 has a wiper arm adapter unit 92. The wiper arm adapter unit has a wind deflector surface 28. The wiper arm adapter unit has a wiper arm opening (not shown) which is provided for accommodating a wiper arm. The wiper arm opening is an opening for an accommodating channel into which the wiper arm can be introduced. The accommodating channel extends as parallel as possible to the wiper arm direction. In the embodiment, the wiper arm adapter unit has a button as a fastening element which is provided for detachably connecting the wiper arm to the wiper arm adapter unit. The wiper arm adapter unit 92 has a wiper blade adapter unit receptacle 94 which is provided for accommodating a wiper blade adapter unit 96 in a manner that it can pivot about a bearing axis 90. The wiper blade adapter unit 96 is provided for accommodating a wiper blade 16.

[0065] In an advantageous embodiment, the windshield 28 has a modified or special surface structure. The surface can be at least partially roughened and / or have a shark skin structure and / or a golf ball structure. This surface structure influences the air flow flowing over it. In this way, the aerodynamic properties of the windshield can be improved. In particular, the pressing force acting on the windshield can be precisely set by selecting the type and arrangement of the modified surface structure.

Claims

1. An adapter unit, which is provided for connecting a wiper blade to a wiper arm, the adapter unit having a windshield surface, which is provided for deflecting inflowing air and pressing the wiper blade against a vehicle windshield, wherein: The windshield is surrounded by a windshield edge and the windshield edge has: at least one windward side which extends as far as possible in the direction of the wiper arm, and at least one leeward side which extends as far as possible in the direction of the wiper arm, and at least one right side, which is arranged between the windward side and the leeward side and on the wiper arm side of the adapter, on which is provided the means for coupling the adapter unit to the wiper arm, and at least one left rear side, which adjoins the leeward side and is arranged on the side of the adapter which is opposite the wiper arm side, and at least one left front side, which adjoins the side facing the wind and is arranged on the side of the adapter which is opposite the wiper arm side, It is characterized in that the leeward side and the right side define a rear angle of between 110° and 160°, wherein the windward side is arranged relative to the leeward side at a right front angle of between 2.5° and 15.0°.

2. The adapter unit according to claim 1, characterized in that The left rear side and the left front side define a left-side angle of between 70° and 120°.

3. The adapter unit according to claim 1 or 2, characterized in that The windward side is arranged relative to the leeward side with a right front angle of between 5.0° and 10.0°.

4. The adapter unit according to claim 1 or 2, characterized in that The left front side is arranged relative to the leeward side at a left front side angle of between 10° and 60°.

5. The adapter unit according to claim 1 or 2, characterized in that The front left side surface is arranged relative to the right side with an inner angle between 0° and 50°.

6. The adapter unit according to claim 1 or 2, characterized in that The windshield has a quadrilateral, depressible button which is provided for detachably coupling the wiper arm to the adapter unit, wherein two opposite side edges of a button contour of the button are oriented parallel to or substantially parallel to the right side.

7. The adapter unit according to claim 1 or 2, characterized in that The windshield surface has a button, which is provided for detachably connecting the wiper arm to the adapter unit, wherein the button is configured as a locking button arranged in a button opening, wherein the locking button is configured such that when the wiper arm is locked, the locking button is arranged centrally or as centrally as possible in the button opening and when the wiper arm is not locked, the locking button abuts against an upper edge of the button opening.

8. The adapter unit according to claim 1 or 2, characterized in that The windshield has a button, which is configured to detachably connect the wiper arm to the adapter unit, wherein the button is configured as a spring button with a spring for applying a restoring force, wherein the spring has an arc-shaped part with at least one rib, wherein the at least one rib is oriented parallel to or as parallel as possible to a radius of the arc-shaped part and is configured to reinforce the arc-shaped part.

9. The adapter unit according to claim 1 or 2, characterized in that The adapter unit is provided for connecting the wiper arm to the wiper blade in a manner that allows pivoting about a bearing axis.

10. The adapter unit according to claim 1 or 2, comprising a wiper arm adapter unit and a wiper blade adapter unit, wherein: The wiper arm adapter unit is provided for coupling to the wiper arm and the wiper blade adapter unit is provided for accommodating the wiper blade, wherein the wiper arm adapter unit comprises a wiper blade adapter unit receptacle which is provided for accommodating the wiper blade adapter unit in a pivotable manner about a bearing axis.

11. The adapter unit according to claim 1 or 2, comprising a base element, a cover element and a wiper arm receptacle, which is provided for receiving the wiper arm in a manner pivotable about a bearing axis, wherein: The covering element is designed to be connectable to the base element and to largely cover the wiper arm receptacle, wherein the covering element has the wind deflector surface, and wherein the base element is provided for accommodating the wiper blade.

12. The adapter unit according to claim 1, characterized in that The adapter unit is provided for detachably coupling the wiper blade to the wiper arm.

13. The adapter unit according to claim 1, characterized in that The leeward side and right side spread out a rear angle between 120° and 150°.

14. The adapter unit according to claim 1, characterized in that The leeward side and right side spread out a rear angle between 130° and 140°.

15. The adapter unit according to claim 2, characterized in that The left rear side and the left front side define a left-side angle of between 80° and 110°.

16. The adapter unit according to claim 2, characterized in that The left rear side surface and the left front side surface define a left-side angle of between 90° and 100°.

17. The adapter unit according to claim 4, characterized in that The left front side is arranged relative to the leeward side at a left front side angle of between 20° and 50°.

18. The adapter unit according to claim 4, characterized in that The left front side is arranged relative to the leeward side at a left front side angle of between 30° and 40°.

19. The adapter unit according to claim 5, characterized in that The front left side surface is arranged relative to the right side with an inner angle between 10° and 40°.

20. The adapter unit according to claim 5, characterized in that The front left side surface is arranged relative to the right side with an inner angle between 20° and 30°.

21. The adapter unit according to claim 8, characterized in that The arc-shaped member has three ribs.

22. The adapter unit according to claim 11, characterized in that The cover element is designed to be firmly connected to the base element, so that the cover element connected to the base element is largely immovable relative to the base element.

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