ADAPTER UNIT

Description

[0001] The invention relates to an adapter unit which is provided for coupling, in particular detachable coupling, a wiper blade with a wiper arm, comprising a wind deflector surface. State of the art

[0002] Wiping devices comprising a wiper arm and a wiper blade, as well as an adapter unit for the detachable coupling of a wiper arm to a wiper blade, have already been proposed. Such wiping devices have the disadvantage that the wiper arm must always exert a high contact force to press the wiper blade against the vehicle windshield in order to ensure sufficient wiping performance.

[0003] Furthermore, an adapter unit with the features of the preamble of claim 1 is known from DE 10 2013 220255 A1. Disclosure of the invention Advantages

[0004] The present invention relates to an adapter unit designed for coupling, in particular detachable coupling, a wiper blade with a wiper arm, comprising a wind deflector surface configured to deflect oncoming airflow and press the wiper blade against a vehicle window, characterized in that the wind deflector surface has at least a first partial surface and a second partial surface, wherein the first partial surface has a different orientation than the second partial surface and / or wherein the first partial surface has a different geometry than the second partial surface, and the first partial surface and / or the second partial surface is at least partially flat or largely flat, characterized by a wiper arm-facing surface configured to guide and / or receive the wiper arm for coupling with the adapter unit, wherein the wiper arm-facing surface is angled to the right by between 10° and 40°.preferably tilted between 20° and 30° relative to a surface normal of an adapter unit base surface, wherein a dividing line between the first sub-surface and the second sub-surface is at least partially perpendicular and / or largely perpendicular to the wiper arm direction.

[0005] This has the advantage that, at high speeds, the wind deflector surface presses the wiper blade against the windshield due to the airflow. This increases the overall contact force of the wiper blade against the windshield and improves wiping performance. The required contact force with which the wiper arm presses the wiper blade against the windshield is thus reduced. A more economical, simpler, more reliable, and / or more compact wiper arm with a lower contact force can be used, particularly one with a smaller spring for applying the contact force. Furthermore, the use of a wind deflector surface according to the present invention prevents the adapter unit or...A wiping device – comprising the adapter unit, the wiper blade, and the wiper arm – generates a force due to unfavorable aerodynamics at high speeds, which opposes the required contact force and would thus impair wiping performance or even make wiping impossible. The adapter unit according to the present invention ensures that, due to aerodynamic effects, particularly wind, especially headwind, a resulting force presses the wiper blade against the vehicle windshield. Because the first and second surfaces each have a different geometry and / or orientation, precise adjustment of the contact forces is possible, particularly the alignment of the contact forces.

[0006] The fact that the first sub-surface has a different orientation than the second sub-surface means, in particular, that a first normal vector of the first sub-surface, or a first averaged normal vector, is not parallel to a second normal vector of the second sub-surface, or a second averaged normal vector of the second sub-surface. The second sub-surface has a different orientation than the first sub-surface. An average normal vector of a surface is understood to be a vector that represents the average of all or nearly all normal vectors of the surface.

[0007] The fact that the first sub-area has a different geometry than the second sub-area means in particular that the first sub-area has a different curvature and / or a different area and / or a different diagonal length and / or different side lengths and / or a different perimeter profile and / or different lateral angles and / or a different shape compared to the second sub-area.

[0008] The adapter unit can be formed integrally with the wind deflector surface. In this context, "integral" refers in particular to a materially bonded connection, such as through a welding process and / or an adhesive bonding process, etc., and especially advantageously to a molded form, such as by being manufactured in one piece and / or by a single- or multi-component injection molding process.

[0009] It is particularly conceivable that the adapter unit is formed in one piece with the first partial surface and / or the second partial surface.

[0010] The adapter unit can comprise at least a first section and a second section, wherein the first section comprises the first surface and the second section comprises the second surface. Advantageously, the first section and the first surface are formed integrally, and / or the second section and the second surface are formed integrally. The first and second sections can be joined by a material bond, such as by welding and / or bonding, etc., and / or by a form-fit connection, such as by clipping, insertion, snapping, and / or screwing.

[0011] Advantageously, the adapter unit features a wiper arm coupling element designed for direct or indirect coupling to the wiper arm. Advantageously, the adapter unit and wiper arm coupling element are formed as a single unit.

[0012] Advantageously, the adapter unit features a wiper blade coupling element designed for direct or indirect coupling to the wiper blade. Advantageously, the adapter unit and wiper blade coupling element are formed as a single unit.

[0013] Advantageous further developments of the adapter unit are possible due to the features listed in the dependent claims.

[0014] It is particularly advantageous if the wind deflector surface forms a main angle between 25° and 75°, preferably between 40° and 60°, with the wind direction. This ensures good aerodynamic properties of the adapter unit with a sufficiently large mounting space, especially for accommodating the wiper arm coupling element.

[0015] A principal angle is defined as the angle that the wind deflector surface forms with the direction of the oncoming wind. Advantageously, the principal angle is measured around the direction of the wiper arm. A positive principal angle between 0° and 90° describes a wind deflector surface that is at least partially oriented towards the direction of the oncoming wind. The closer the principal angle is to 90°, the more the wind deflector surface is oriented towards the direction of the oncoming wind. The direction of the oncoming wind is defined as the direction in which the airflow would flow towards the adapter unit or wiper assembly – comprising the adapter unit, the wiper blade, and the wiper arm – when the wiper is not in operation.

[0016] Advantageously, the principal angle is defined between the wind direction and a projection of the wind direction onto the wind deflector surface, the projection advantageously being carried out along a projection plane in which the wind direction lies and which is perpendicular or largely perpendicular to the wiper arm direction. It is also possible for the projection plane to be defined by the wind direction and a normal vector or a mean normal vector of the wind deflector surface. In the case of a curved or non-planar wind deflector surface, it is conceivable that the principal angle is defined between the wind direction and a tangent plane, where the tangent plane lies at a distinguished point – for example, the center point – of the wind deflector surface or is the tangent plane of a mean normal vector of the wind deflector surface.A mean normal vector is a vector that represents the average of all or almost all normal vectors of the wind deflector surface.

[0017] The aerodynamics of the adapter unit are further improved if the first sub-surface and / or the second sub-surface is aligned at least partially parallel and / or largely parallel to a wiper arm direction. A wiper arm direction is defined as a direction aligned with the greatest longitudinal extent of the wiper arm mounted on the adapter unit, particularly in its home position. In the unmounted state, the wiper arm direction is the direction on the adapter unit in which a mounted wiper arm would point, particularly in its home position. A sub-surface being aligned parallel to a wiper arm direction means, in particular, that a tangent vector of the sub-surface or a mean tangent vector of the sub-surface is aligned parallel to the wiper arm direction. A mean tangent vector is a vector that lies in the tangent plane of the mean normal vector.If the sub-surface is planar, then a tangent vector lies in a plane in which the sub-surface lies.

[0018] "Small but parallel" means that a first axis forms an angle with a second axis that deviates from 0° by no more than 8°, advantageously by no more than 5°, and particularly advantageously by no more than 2°. "Small but perpendicular" means that a first axis forms an angle with a second axis that deviates from 90° by no more than 8°, advantageously by no more than 5°, and particularly advantageously by no more than 2°.

[0019] The adapter unit has particularly good aerodynamics because a dividing line between the first and second surfaces is oriented at least partially perpendicular and / or largely perpendicular to the wiper arm direction. According to the invention, the first and second surfaces meet at least partially at the dividing line. In particular, a connecting area between the first and second surfaces can run along the dividing line. Advantageously, the dividing line is straight or largely straight.

[0020] An adapter unit in which the first and / or second surface is at least partially flat or largely flat has the advantage of being easy to manufacture and exhibiting good aerodynamic properties. A largely flat surface is defined as a surface that can be laid in an imaginary plane such that a maximum distance from this plane is less than 7% of the plane's largest diameter, preferably less than 3%, and particularly preferably less than 1%.

[0021] A particularly advantageous adapter unit is one in which the first sub-surface is arranged at a first angle between 0° and 45°, preferably between 5° and 30°, and most preferably between 10° and 20°, to the second sub-surface, wherein the first angle is the angle between a surface normal of the first sub-surface and a surface normal of the second sub-surface. Here, a surface normal of a sub-surface is understood to be, in particular, a normal vector of the sub-surface—preferably in the case of a planar or largely planar sub-surface—and / or a mean normal vector of the sub-surface—preferably in the case of a curved sub-surface.

[0022] The adapter unit is further improved if the first and second surfaces meet at least partially at the dividing line and form a second angle at the dividing line, wherein the second angle lies on an outer side of the wind deflector surface or on a windward side of the wind deflector surface, and the second angle lies between 180° and 270°, preferably between 190° and 235°, and particularly preferably between 200° and 220°. Such a wind deflector surface is preferably convex. Preferably, the second angle is formed between a first ray – extending from a reference point on the dividing line towards the first surface and arranged perpendicular to the dividing line and tangentially to the first surface – and a second ray – extending from the reference point on the dividing line towards the second surface and arranged perpendicular to the dividing line and tangentially to the second surface.

[0023] The adapter unit is further improved if the first and second sub-surfaces meet at least partially at the dividing line and form a third angle at the dividing line, wherein the third angle lies on an outer side of the wind deflector surface or on a windward side of the wind deflector surface, and the third angle is between 90° and 180°, preferably between 135° and 170°, and particularly preferably between 150° and 160°. Such a wind deflector surface is particularly concave. Preferably, the third angle is formed between a first ray – which extends from a reference point on the dividing line towards the first sub-surface and is arranged perpendicular to the dividing line and tangentially to the first sub-surface – and a second ray – which extends from the reference point on the dividing line towards the second sub-surface and is arranged perpendicular to the dividing line and tangentially to the second sub-surface.

[0024] The aerodynamics of the adapter unit are further improved by an upper surface located on the leeward side of the wind deflector surface and aligned parallel or largely parallel to the wiper arm direction. This upper surface forms an angle of between 10° and 25°, preferably between 15° and 20°, with the oncoming wind direction, so that it deflects the oncoming airflow and presses the wiper blade against the vehicle windshield. This promotes a laminar flow of wind around the adapter unit.

[0025] The adapter unit is further improved if the upper surface is convex, at least in some areas. Preferably, the upper surface is convex along the direction of wind flow. The term "convex" for a surface of the adapter unit means, in particular, that the surface bulges outward from the adapter unit.

[0026] If the adapter unit has a rear side which is arranged on a side of the adapter unit opposite the wind deflector surface and which is arranged on a side of the adapter unit facing away from the wind, wherein the rear side is tilted at a rear angle of between 10° and 40°, preferably between 20° and 30°, relative to a surface normal of an adapter unit base surface, so that the rear side projects beyond the adapter unit base surface in the direction of the wind flow, this has the advantage that turbulence in the air flowing around the adapter unit is minimized.

[0027] The aerodynamics of the adapter unit are further improved by a wiper arm-facing surface designed to guide and / or receive the wiper arm for coupling with the adapter unit. This wiper arm-facing surface is tilted at a rightward angle of between 10° and 40°, preferably between 20° and 30°, relative to a surface normal of an adapter unit base. This ensures sufficient contact pressure during a wiping operation when the adapter unit or wiping system is moved from its rest position.

[0028] A further improvement occurs if the surface facing the wiper arm is at least partially concave. Advantageously, the surface facing the wiper arm is at least partially concave in the direction of the surface normal. The term "concave" refers specifically to the surface into which the adapter unit is curved.

[0029] The aerodynamics of the adapter unit are further improved by a surface facing away from the wiper arm, which is arranged opposite one side of the adapter unit. This surface is designed to couple the wiper arm to the adapter unit, and is tilted at a leftward angle of between 10° and 40°, preferably between 20° and 30°, relative to a surface normal of the adapter unit's base. This ensures sufficient contact pressure during a wiping operation when the adapter unit or wiping system is moved from its rest position.

[0030] A further improvement occurs if the surface facing away from the wiper arm is at least partially convex. It is advantageous if the surface facing away from the wiper arm is at least partially convex in the direction of the surface normal.

[0031] If the adapter unit is designed to connect the wiper arm to the wiper blade in a pivotable manner around a bearing axis, this has the advantage that optimal contact force can be ensured largely over the entire wiping area on the vehicle windshield, especially in the case of curved vehicle windshields.

[0032] Advantageously, the adapter unit is designed such that the bearing axis is arranged parallel or largely parallel to the direction of wind flow. Advantageously, the adapter unit is designed such that the bearing axis is arranged perpendicular or largely perpendicular to a wiper arm direction. Advantageously, the bearing axis is arranged parallel or largely parallel to a intended wiping direction. Advantageously, the bearing axis is arranged such that, in a non-wiping rest state of the wiper device mounted on the vehicle windshield – comprising the wiper arm adapter unit, the wiper blade, and the wiper arm – it is arranged parallel or largely parallel to a direction of wind flow or to a vehicle travel direction. Particularly advantageously, the bearing axis is parallel to the vehicle windshield when mounted on the vehicle, preferably at every position during a wiping movement.

[0033] A particularly advantageous adapter unit comprises a wiper arm adapter unit and a wiper blade adapter unit, wherein the wiper arm adapter unit is designed for coupling with the wiper arm and the wiper blade adapter unit is designed to receive the wiper blade, the wiper arm adapter unit having a wiper blade adapter unit receptacle designed to pivot about the bearing axis. In this way, particularly favorable aerodynamics of the connection area between the adapter unit and the wiper arm can be ensured at every point during a wiping movement.

[0034] Advantageously, the wiper arm adapter unit is formed in one piece with the wind deflector surface and / or the wiper blade adapter unit mount. Advantageously, the wiper arm adapter unit can be firmly connected to the wiper arm, in particular in such a way that the wiper arm is largely immobile relative to the wiper arm adapter unit when connected.

[0035] A wiper blade adapter unit is understood to be, in particular, an adapter that has a contact area for the wiper blade or a wiper blade component and can be connected to the wiper blade or wiper blade component, preferably in a fixed manner, and especially in such a way that the wiper blade, when connected to the wiper blade adapter unit, is largely immobile relative to the wiper blade adapter unit. Advantageously, the wiper blade adapter unit has a connecting element designed to pivotally couple with the wiper blade adapter unit receptacle of the wiper arm adapter unit. Advantageously, the wiper blade adapter unit is formed integrally with the contact area and / or the connecting element. It is also conceivable that the wiper blade adapter unit is formed integrally with the wiper blade or a wiper blade component.The wiper blade adapter unit mount is advantageously designed in such a way that the bearing axis is arranged perpendicular or largely perpendicular to a wiper arm direction.

[0036] A particularly advantageous adapter unit comprises a base element, a cover element, and a wiper arm mount, which is designed to pivot the wiper arm about the bearing axis, wherein the cover element is connectable to the base element and largely covers the wiper arm mount, and wherein the cover element has the wind deflector surface, and wherein the base element is configured to receive the wiper blade, and wherein, in particular, the cover element is firmly connectable to the base element, so that the cover element connected to the base element is largely immobile relative to the base element. In this way, particularly favorable aerodynamics of a connection area between the adapter unit and the wiper blade can be ensured at every point during a wiping movement.

[0037] Advantageously, the cover element and the wind deflector surface are formed in one piece. Advantageously, the cover element has a coupling element for connection to the base element. Advantageously, the cover element and the coupling element are formed in one piece. A base element is understood to be, in particular, an adapter that has a contact area for the wiper blade or a wiper blade component and can be connected to the wiper blade or wiper blade component, advantageously being firmly connected, and in particular being connectable in such a way that the wiper blade, when connected to the base element, is largely immovable relative to the base element. Advantageously, the base element has a receiving element designed to couple with the cover element or with the coupling element of the cover element. Advantageously, the wiper blade adapter unit, including the contact area and / or the connecting element, is formed in one piece.It is also conceivable that the base element is formed in one piece with the wiper blade or with a wiper blade component. Advantageously, the base element has the wiper arm mount. Advantageously, the base element and the wiper arm mount are formed in one piece. Advantageously, the wiper arm mount is designed such that the bearing axis is arranged perpendicular or largely perpendicular to a wiper arm direction. Drawings

[0038] The drawings illustrate exemplary embodiments of the adapter unit according to the present invention, which are explained in more detail in the following description. They show Figure 1 a wiping device with an adapter unit, Figure 2 a perspective view of the adapter unit, Figures 3 to 11 as well as 13 to 19 perspective views of different variants of the adapter unit and Figure 12 and 20 Side views of variants of the adapter unit. Description

[0039] In the different versions, identical parts receive the same reference numbers.

[0040] In the Figure 1A wiping device 10 with an adapter unit 12, a wiper arm 14, and a wiper blade 16 is shown schematically in a side view. The wiper blade 16 is designed as a flat wiper blade. The wiper blade 16 is intended for cleaning a vehicle window 18. The adapter unit 12 has a cover element 20. The adapter unit has a base element 22. The wiper arm 14 has a wiper rod 24. In the exemplary embodiment, a main longitudinal direction of the wiper arm adapter unit is arranged parallel to a wiper arm direction 26. A main longitudinal direction of the wiper blade is arranged parallel to the wiper arm direction. In advantageous variants, the main longitudinal direction of the wiper arm adapter unit is arranged at least largely parallel to a wiper arm direction 26. In advantageous variants, the main longitudinal direction of the wiper blade is arranged at least largely parallel to the wiper arm direction.The cover element has a wind deflector surface 28. The wind deflector surface has a first sub-surface 30 and a second sub-surface 32. The first sub-surface and the second sub-surface are separated by a dividing line 34.

[0041] Figure 2 Figure 1 shows a perspective view of the adapter unit 12. The first sub-surface 30 has a different orientation than the second sub-surface 32. In particular, the first sub-surface 30 has a different orientation to a wind direction 36 than the second sub-surface 32.

[0042] Figure 3 shows a perspective view of a variant of the adapter unit 12, in which the wind deflector surface 28 encloses a principal angle 38 of 50° with the wind direction 36.

[0043] Figure 4Figure 1 shows a perspective view of a variant of adapter unit 12, in which the first sub-surface is aligned parallel to the wiper arm direction. In this variant, the first sub-surface also has a different geometry than the second sub-surface. The first sub-surface has a smaller area than the second sub-surface.

[0044] Figure 5 Figure 1 shows a perspective view of another variant of the adapter unit 12, in which the second sub-surface is aligned parallel to the wiper arm direction. In this variant as well, the first sub-surface has a different geometry than the second sub-surface. The first sub-surface has a smaller area than the second sub-surface.

[0045] In the exemplary embodiment, the dividing line 34 runs perpendicular to the wiper arm direction 26 (see Figure 2 In alternative embodiments, the dividing line 34 may have a different orientation relative to the direction of the wiper arm. Figure 6shows a variant in which the dividing line 34 runs largely parallel to the wiper arm direction 26. Figure 7 One variant is shown in which the dividing line is positioned at an angle of 45° to the wiper arm direction. The dividing line runs largely diagonally across the wind deflector surface. Figure 8 This shows a variant in which the dividing line has a multiply curved profile. The dividing line is segmentally S-shaped. This allows for particularly precise adjustment of a desired contact force, especially the direction of the contact force, at every point of the adapter unit.

[0046] In the exemplary embodiment, the first partial surface is arranged at a first angle of 40° of 35° to the second partial surface (see Figure 2 ). The first angle 40 is enclosed between a first normal vector 42 of the first sub-surface and a second normal vector 44 of the second sub-surface.

[0047] In the exemplary embodiment, the first sub-surface and the second sub-surface form a second angle 46 of 215° at the dividing line. The second angle 46 is formed by a first ray 48 of the first sub-surface and a second ray 50 of the second sub-surface.

[0048] Figure 9 Figure 1 shows a variant in which the first sub-surface and the second sub-surface form a second angle 46 of 155° at the dividing line. The second angle 46 is formed by a first ray 48 of the first sub-surface and a second ray 50 of the second sub-surface.

[0049] Figure 10 shows a variant of the adapter unit in which an upper surface 52 encloses an upper angle 54 with the wind direction 36. Figure 11 Figure 52 shows another variant in which the upper surface is convex.

[0050] Figure 12 shows a section through the adapter unit of the exemplary embodiment (see Figure 2) along the dividing line and perpendicular to the wiper arm direction 26. A rear side 56 of the adapter unit is tilted at a rear angle 58 of 15° relative to a surface normal 60 of an adapter base 62. The adapter base is preferably aligned parallel or largely parallel to the vehicle windshield when the adapter unit is mounted.

[0051] Figure 13 shows a variant in which a surface 64 facing the wiper arm is tilted relative to the surface normal 60 by a right-hand angle 66 of 10° in the wiper arm direction 26. Figure 14 shows a variant in which a surface 64 facing the wiper arm is tilted relative to the surface normal 60 by a right-hand angle 66 of 15° against the wiper arm direction 26.

[0052] Figure 15 shows a variant in which the surface facing the wiper arm is 64 concave. Figure 16 shows a variant in which the surface facing the wiper arm is convex 64. Figure 17 Figure 1 shows a variant in which the surface 64 facing the wiper arm is partially concave. The surface 64 facing the wiper arm in the Figure 17 The depicted variant is convex in some areas.

[0053] Figure 18 shows a variant in which a surface 68 facing away from the wiper arm is tilted relative to the surface normal 60 by a left-sided angle 70 of 15° against the wiper arm direction 26. Figure 19 shows a variant in which a surface 68 facing away from the wiper arm is tilted relative to the surface normal 60 by a left-sided angle 70 of 10° in the wiper arm direction 26.

[0054] In the in the Figures 15 to 17 In the variants of the adapter unit shown, the surface 68 facing away from the wiper arm is convex in each case.

[0055] In the Figure 12In the illustrated variant, the cover element 20 can be firmly connected to the base element 22 via a snap-fit ​​connection (not shown). The base element 22 has a wiper arm receptacle 72. The wiper arm receptacle 72 is designed to connect to the wiper arm so that the wiper arm can pivot or rotate about a bearing axis 74. The base element 22 is designed to receive the wiper blade via a plug-in connection (not shown).

[0056] Figure 20Figure 12 shows a section through an alternative embodiment of the adapter unit along the dividing line and perpendicular to the wiper arm direction 26. The adapter unit 12 comprises a wiper arm adapter unit 76. The wiper arm adapter unit has the wind deflector surface 28. The wiper arm adapter unit has a wiper arm opening 78, which is designed to receive the wiper arm. The wiper arm opening is an opening for a receiving channel into which the wiper arm can be inserted. The receiving channel runs largely parallel to the wiper arm direction. In the exemplary embodiment, the wiper arm adapter unit has a fixing means (not shown) which is provided for a detachable coupling of the wiper arm to the wiper arm adapter unit. The wiper arm adapter unit 76 has a wiper blade adapter unit receptacle 80, which is designed to pivotably receive a wiper blade adapter unit 82 about the bearing axis 74.The wiper blade adapter unit 82 is designed and intended to accommodate the wiper blade 16.

[0057] In advantageous embodiments, the wind deflector surface 28 has a modified or special surface structure. The surface can be roughened, at least in some areas, and / or have a sharkskin texture and / or a golf ball texture. Such a surface structure influences the airflow over it. In this way, the aerodynamic properties of the wind deflector surface can be improved. In particular, it is possible to precisely adjust the downforce acting on the wind deflector surface by selecting the type and arrangement of the modified surface structure.

Claims

1. Adapter unit (12) which is provided for coupling, in particular releasable coupling, of a wiper blade (16) to a wiper arm (14), having a wind deflector surface (28) which is designed to deflect inflowing air and press the wiper blade onto a vehicle glass (18), wherein the wind deflector surface has at least one first sub-face (30) and a second sub-face (32), wherein the first sub-face has a different orientation than the second sub-face and / or wherein the first sub-face has a different geometry than the second sub-face, and the first sub-face and / or the second sub-face are / is designed to be flat or largely flat at least in regions, characterized by a face (64) which faces the wiper arm and is designed to guide through and / or receive the wiper arm for coupling to the adapter unit, wherein the face facing the wiper arm is tilted relative to a surface normal (60) of an adapter unit base area (62) by a right-hand angle between 10° and 40°, preferably between 20° and 30°, characterized in that a dividing line (34) between the first sub-face and the second sub-face is oriented at least in regions to be perpendicular and / or largely perpendicular to the wiper arm direction (26).

2. Adapter unit according to Claim 1, characterized in that the wind deflector surface encloses a primary angle of between 25° and 75°, preferably of between 40° and 60°, with an incident wind flow direction.

3. Adapter unit according to one of the preceding claims, characterized in that the first sub-face and / or the second sub-face are / is oriented at least in regions to be parallel and / or largely parallel to a wiper arm direction.

4. Adapter unit according to one of the preceding claims, characterized in that the first sub-face is disposed relative to the second sub-face at a first angle between 0° and 45°, preferably between 5° and 30°, particularly preferably between 10° and 20°, wherein the first angle is the angle between a surface normal of the first sub-face and a surface normal of the second sub-face.

5. Adapter unit according to one of the preceding claims, characterized in that the first sub-face and the second sub-face converge at least partially in the dividing line and define a second angle on the dividing line, wherein the second angle is on an outside of the wind deflector surface or on a wind-facing side of the wind deflector surface, and the second angle is between 180° and 270°, preferably between 190° and 235°, particularly preferably between 200° and 220°.

6. Adapter unit according to one of the preceding claims, characterized in that the first sub-face and the second sub-face converge at least partially in the dividing line and define a third angle on the dividing line, wherein the third angle is on an outside of the wind deflector surface or on a wind-facing side of the wind deflector surface, and the third angle is between 90° and 180°, preferably between 135° and 170 °, particularly preferably between 150° and 160°.

7. Adapter unit according to one of the preceding claims, characterized by an upper face (52) which is disposed on a side (68) of the wind deflector surface that faces away from the wind, and is oriented to be parallel or largely parallel to the wiper arm direction, and wherein the upper face encloses an upper angle between 10° and 25°, preferably between 15° and 20°, with the incident wind flow direction, so that the upper face is designed to deflect inflowing air and press the wiper blade onto a vehicle glass.

8. Adapter unit according to one of the preceding claims, characterized in that the upper face is designed to be convex at least in regions.

9. Adapter unit according to one of the preceding claims, characterized by a rear side (56) which is disposed on a side of the adapter unit that lies opposite the wind deflector surface and which is disposed on a side of the adapter unit that faces away from the wind, wherein the rear side is tilted relative to a surface normal of an adapter unit base area by a rear angle between 10° and 40°, preferably between 20° and 30°, so that the rear side protrudes beyond the adapter unit base area in the incident wind flow direction.

10. Adapter unit according to Claim 9, characterized in that face facing the wiper arm is designed to be concave at least in regions.

11. Adapter unit according to one of the preceding claims, characterized by a face (68) which faces away from the wiper arm and is disposed opposite a side of the adapter unit that is provided for the wiper arm to couple to the adapter unit thereon, wherein the face facing away from the wiper arm is tilted relative to a surface normal of an adapter unit base area (62) by a left-hand angle between 10° and 40°, preferably between 20° and 30°.

12. Adapter unit according to Claim 10, characterized in that the face facing away from the wiper arm is designed to be convex at least in regions.

13. Adapter unit according to one of the preceding claims, characterized in that the adapter unit is specified to connect the wiper arm to the wiper blade so as to be pivotable about a bearing axis (74).

14. Adapter unit according to one of the preceding claims, comprising a wiper arm adapter unit (76) and a wiper blade adapter unit (82), wherein the wiper arm adapter unit is provided for coupling to the wiper arm, and the wiper blade adapter unit is provided for receiving the wiper blade, wherein the wiper arm adapter unit has a wiper blade adapter unit receptacle (80) which is provided for receiving the wiper blade adapter unit so as to be pivotable about the bearing axis.

15. Adapter unit according to one of the preceding claims, comprising a base element (22), a cover element (20) and a wiper arm receptacle (72) which is provided for receiving the wiper arm so as to be pivotable about the bearing axis, wherein the cover element is designed to be connectable to the base element and largely covers the wiper arm receptacle, and wherein the cover element has the wind deflector surface, and wherein the base element is specified to receive the wiper blade, and wherein in particular the cover element is designed to be fixedly connectable to the base element, so that the cover element connected to the base element is largely immovable relative to the base element.

16. Wiper blade (16) having an adapter unit according to one of the preceding claims.