Windshield wiper device

Abstract

The invention relates to a windshield wiper device (10a; 10b) for a windshield wiper (12a; 12b), comprising at least one wiper arm adapter (14a; 14b), at least one wiper blade adapter (16a; 16b), and a heating unit (18a; 18b) for heating a wiper blade (20a; 20b) and/or a spray unit (22a; 22b) for spraying a wash fluid onto a vehicle windshield, wherein the spray unit (22a; 22b) and/or the heating unit (18a; 18b) is/are at least partly arranged in the wiper blade adapter (16a; 16b). The wiper arm adapter (14a; 14b) and the wiper blade adapter (16a; 16b) have coupling elements (24a, 26a; 24b, 26b) which are provided for laterally coupling the wiper arm adapter (14a; 14b) to the wiper blade adapter (16a; 16b).

Claims

1. A windshield wiper device (10a; 10b) for a windshield wiper (12a; 12b), the windshield wiper device (10a, 10b) having at least one wiper arm adapter (14a; 14b), having at least one wiper blade adapter (16a; 16b), and having a heating unit (18a; 18b) for heating a wiper blade (20a; 20b) and/or having a spray unit (22a; 22b) for spraying a washing fluid onto a vehicle windshield, wherein the spray unit (22a; 22b) and/or the heating unit (18a; 18b) are/is arranged at least partially in the wiper blade adapter (16a; 16b), characterized in that the wiper arm adapter (14a; 14b) and the wiper blade adapter (16a; 16b) have coupling elements (24a, 26a; 24b, 26b) configured for lateral coupling of the wiper arm adapter (14a; 14b) to the wiper blade adapter (16a; 16b).

2. The windshield wiper device (10b) as claimed in claim 1, characterized in that the spray unit (22b) has at least one spray channel connection element (28b), which is connected at least partially to at least one coupling element (24b, 26b) and is configured for at least partially automatic coupling to a further spray channel connection element (30b) on the wiper blade adapter (16b).

3. The windshield wiper device (10a) as claimed in claim 1, characterized in that the wiper arm adapter (14a) is arranged at least partially separately from the spray unit (22a) and/or the heating unit (18a).

4. The windshield wiper device (10a) as claimed in claim 1, characterized in that the spray unit (22a) has at least one spray channel connection element (28a), which is configured for at least partially manual coupling to the wiper blade adapter (16a).

5. The windshield wiper device (10a) as claimed in claim 4, characterized in that the spray unit (22a) has at least one detent unit (32a), which is configured for force- and/or form-fitting connection of the spray channel connection element (28a) to a spray channel unit (34a) of the spray unit (22a) in the wiper blade adapter (16a).

6. The windshield wiper device (10a) as claimed in claim 4, characterized in that the wiper blade adapter (16a) has a connection unit (44a) which is arranged on at least one side wall (46a), extending transverse to a direction of longitudinal extent (40a) of the wiper blade adapter (16a), and which is configured for connection to the spray channel connection element (28a).

7. The windshield wiper device (10a) as claimed in claim 1, characterized in that the heating unit (18a) has at least one heating connection element (50a), which is configured for at least partially manual fitting to a heating element (52a) of the heating unit (18a) in the wiper blade adapter (16a).

8. The windshield wiper device (10a) as claimed in claim 7, characterized in that the heating unit (18a) has at least one detent unit (54a), which is configured for force- and/or form-fitting connection of the heating connection element (50a) to a heating element (52a) of the heating unit (18a) in the wiper blade adapter (16a).

9. A windshield wiper (12a; 12b) having a windshield wiper device (10a; 10b) as claimed in claim 1.

10. A method for assembling a windshield wiper device (10a; 10b) as claimed in claim 1, the method comprising laterally coupling the wiper arm adapter (14a) to the wiper blade adapter (16a), and connecting the spray channel connection elements (28a, 30a) of the spray unit (22a) and/or heating connection elements (50a) of the heating unit (18a).

11. A windshield wiper device (10a; 10b) for a windshield wiper (12a; 12b), the windshield wiper device (10a; 10b) having at least one wiper arm adapter (14a; 14b), having at least one wiper blade adapter (16a; 16b), and having a spray unit (22a; 22b) for spraying a washing fluid onto a vehicle windshield, wherein the spray unit (22a; 22b) is arranged at least partially in the wiper blade adapter (16a; 16b), characterized in that the wiper arm adapter (14a; 14b) and the wiper blade adapter (16a; 16b) have coupling elements (24a, 26a; 24b, 26b) configured for lateral coupling of the wiper arm adapter (14a; 14b) to the wiper blade adapter (16a; 16b).

12. The windshield wiper device (10b) as claimed in claim 11, characterized in that the spray unit (22b) has at least one spray channel connection element (28b), which is connected at least partially to at least one coupling element (24b, 26b) and is configured for at least partially automatic coupling to a further spray channel connection element (30b) on the wiper blade adapter (16b).

13. The windshield wiper device (10a) as claimed in claim 11, characterized in that the wiper arm adapter (14a) is arranged at least partially separately from the spray unit (22a).

14. The windshield wiper device (10a) as claimed in claim 11, characterized in that the spray unit (22a) has at least one spray channel connection element (28a), which is configured for at least partially manual coupling to the wiper blade adapter (16a).

15. The windshield wiper device (10a) as claimed in claim 14, characterized in that the spray unit (22a) has at least one detent unit (32a), which is configured for force- and/or form-fitting connection of the spray channel connection element (28a) to a spray channel unit (34a) of the spray unit (22a) in the wiper blade adapter (16a).

16. The windshield wiper device (10a) as claimed in claim 14, characterized in that the wiper blade adapter (16a) has a connection unit (44a) which is arranged on at least one side wall (46a), extending transverse to a direction of longitudinal extent (40a) of the wiper blade adapter (16a), and which is configured for connection to the spray channel connection element (28a).

17. A windshield wiper device (10a; 10b) for a windshield wiper (12a; 12b), the windshield wiper device (10a; 10b) having at least one wiper arm adapter (14a; 14b), having at least one wiper blade adapter (16a; 16b), and having a heating unit (18a; 18b) for heating a wiper blade (20a; 20b), wherein the heating unit (18a; 18b) is arranged at least partially in the wiper blade adapter (16a; 16b), characterized in that the wiper arm adapter (14a; 14b) and the wiper blade adapter (16a; 16b) have coupling elements (24a, 26a; 24b, 26b) configured for lateral coupling of the wiper arm adapter (14a; 14b) to the wiper blade adapter (16a; 16b).

18. The windshield wiper device (10a) as claimed in claim 17, characterized in that the heating unit (18a) has at least one heating connection element (50a), which is configured for at least partially manual fitting to a heating element (52a) of the heating unit (18a) in the wiper blade adapter (16a).

19. The windshield wiper device (10a) as claimed in claim 18, characterized in that the heating unit (18a) has at least one detent unit (54a), which is configured for force- and/or form-fitting connection of the heating connection element (50a) to a heating element (52a) of the heating unit (18a) in the wiper blade adapter (16a).

20. The windshield wiper device (10a) as claimed in claim 17, characterized in that the wiper arm adapter (14a) is arranged at least partially separately from the heating unit (18a).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further advantages will emerge from the following description of the drawings. The drawings illustrate two exemplary embodiments of the invention. The drawings, the description and the claims contain numerous features in combination. A person skilled in the art will expediently also consider the features individually, and combine them to form meaningful further combinations.

(2) In the drawing:

(3) FIG. 1 shows a windshield wiper according to the invention with a windshield wiper device according to the invention in a simplified illustration from above,

(4) FIG. 2 shows the windshield wiper device according to the invention in a simplified illustration from above,

(5) FIG. 3 shows the windshield wiper device according to the invention in a simplified illustration in a lateral sectional view, wherein the section plane is arranged perpendicular to a direction of longitudinal extent of the wiper blade adapter,

(6) FIG. 4 shows a method according to the invention for assembling the windshield wiper device according to the invention in a highly simplified process illustration, and

(7) FIG. 5 shows a further exemplary embodiment of the windshield wiper device in a simplified illustration from above.

DETAILED DESCRIPTION

(8) FIG. 1 shows a windshield wiper 12a. The windshield wiper 12a is provided for wiping a vehicle windshield of a vehicle. The windshield wiper 12a is in the form of a wind deflector windshield wiper. As additionally shown by FIG. 2 in a lateral illustration of the windshield wiper 12a, the windshield wiper 12a has at least one wiper blade 20a. The wiper blade 20a has at least one wiper strip 62a. The wiper strip 62a, in particular a wiper lip of the wiper strip 62a, is provided for being placed in contact with the vehicle windshield for the purpose of wiping the vehicle windshield. The windshield wiper 12a moreover has at least one spring rail 64a, which is provided for subjecting the wiper blade 20a, in particular the wiper strip 62a, to a tensioning force. Moreover, the wiper strip 62a has at least one spoiler unit (not shown here). The spoiler unit is arranged on a side of the wiper blade 20a that faces away from the vehicle windshield. Alternatively, it is also possible for the windshield wiper 12a to be of flat design in the form of a flat beam windshield wiper, wherein a spoiler unit could be dispensed with.

(9) The windshield wiper 12a has a wiper arm 66a (cf. FIG. 1). The wiper arm 66a is rotatably mounted on a vehicle component. The wiper arm 66a is provided for subjecting the windshield wiper 12a, in particular the wiper blade 20a, to a wiping movement. The wiper arm 66a may have a wiper arm body (not shown here) and a wiper arm housing 68a. The wiper arm housing 68a delimits an interior space of the wiper arm 66a.

(10) The windshield wiper 12a has a windshield wiper device 10a. The windshield wiper device 10a is provided for connecting the wiper arm 66a to the wiper blade 20a and/or to the wiper strip 62a. The windshield wiper device 10a is provided for releasable connection of the wiper arm 66a to the wiper blade 20a and/or to the wiper strip 62a. The windshield wiper device 10a is arranged on a side of the wiper strip 62a that faces away from the vehicle windshield. The windshield wiper device 10a is connected at least partially in a non-releasable manner to the wiper strip 62a. The windshield wiper device 10a is connected at least partially in a force- and/or form-fitting manner to the wiper arm 66a. Preferably, the windshield wiper device 10a is connected at least partially in a materially bonded manner to the wiper arm 66a. It is alternatively conceivable for the windshield wiper device 10a to be connected partially integrally to the wiper arm 66a. Moreover, it is alternatively conceivable for the windshield wiper device 10a to be connected in a releasable manner to the wiper strip 62a.

(11) FIG. 3 shows the windshield wiper device 10a in a non-assembled stated in a view from above. The windshield wiper device 10a has a wiper arm adapter 14a. The wiper arm adapter 14a is provided for partially providing and/or forming a region of coupling of the wiper arm 66a to the wiper strip 62a and/or to the wiper blade 20a. The wiper arm adapter 14a is connected in a materially bonded manner to the wiper arm 66a. Alternatively, the wiper arm adapter 14a may be formed integrally with the wiper arm 66a or connected in a force- and/or form-fitting manner to the wiper arm 66a.

(12) The wiper arm adapter 14a is provided for force- and/or form-fitting connection to a wiper blade adapter 16a of the windshield wiper device 10a. The wiper arm adapter 14a is provided for lateral coupling to the wiper blade adapter 16a. The wiper arm adapter 14a is in the form of a side lock wiper arm adapter 14a. The wiper arm adapter 14a has at least one coupling element 24a, which is provided for being connected, in an assembled state of the windshield wiper device 10a, to a further coupling element 26a of the wiper blade adapter 16a. The coupling element 24 is in the form of a bolt. The coupling element 24a has a longitudinal extent which is oriented perpendicular to a direction of longitudinal extent of the wiper arm 66a and/or, in an assembled state of the windshield wiper device 10a, perpendicular to a longitudinal extent of the wiper blade 20a. The coupling element 24a has a circular cross section. The cross section of the coupling element 24a is oriented perpendicular to the longitudinal extent of the coupling element 24a. Alternatively, the cross section may be formed to be elliptical, oval, polygonal or the like. The coupling element 24a, in the assembled state, engages at least partially into the wiper blade adapter 16a.

(13) The windshield wiper device 10a has the wiper blade adapter 16a. The wiper blade adapter 16a has a direction of longitudinal extent 40a. The direction of longitudinal extent 40a, in particular in a wiping operation state, is oriented perpendicular to a wiping direction of the windshield wiper 12a in a region of contact of the windshield wiper 12a with the vehicle windshield. The direction of longitudinal extent 40a of the wiper blade adapter 16a is oriented parallel to the direction of longitudinal extent, in particular a main direction of extent, of the wiper blade 20a in a region of contact of the wiper blade adapter 16a with the wiper strip 62a. The direction of longitudinal extent 40a of the wiper blade adapter 16a forms the main direction of extent of the wiper blade adapter 16a. Alternatively, the main direction of extent may be configured to be perpendicular to the direction of longitudinal extent. The wiper blade adapter 16a has a direction of transverse extent 42a. The direction of transverse extent 42a of the wiper blade adapter 16a is oriented perpendicular to the direction of longitudinal extent 40a of the wiper blade adapter 16a. The direction of transverse extent 42a of the wiper blade adapter 16a is oriented parallel to the wiping direction of the windshield wiper 12a in a region of contact of the windshield wiper 12a on the vehicle windshield.

(14) The wiper blade adapter 16a is provided for partially providing and/or forming a region of coupling of the wiper blade 20a to the wiper arm 66a. The wiper blade adapter 16a is captively connected to the wiper strip 62a. The wiper blade adapter 16a is connected in a force- and/or form-fitting manner to the wiper strip 62a. The wiper blade adapter 16a engages at least partially around the wiper strip 62a and/or at least one spring rail 64a. Alternatively, the wiper blade adapter 16a may be connected to the wiper strip 62a by means of a clamped connection, a detent connection, an, in particular releasable, rivet connection and/or by means of some other connection which appears to be expedient to a person skilled in the art.

(15) The wiper blade adapter 16a has at least one main body 48a. The main body 48a forms at least one side wall 46a of the wiper blade adapter 16a, which is oriented perpendicular to the direction of longitudinal extent 40a of the wiper blade adapter 16a. The side wall 46a extends transverse to the direction of longitudinal extent 40a of the wiper blade adapter 16a.

(16) The wiper blade adapter 16a is provided for force- and/or form-fitting connection to the wiper arm adapter 14a. The wiper blade adapter 16a is provided for lateral coupling to the wiper arm adapter 14a. The wiper blade adapter 16a is in the form of a side lock wiper blade adapter 16a. The wiper blade adapter 16a has a further coupling element 26a, which is provided for being coupled, in an assembled state of the windshield wiper device 10a, to the coupling element 24a of the wiper arm adapter 14a. The further coupling element 26a is in the form of a recess. The further coupling element 26a has a longitudinal extent which is oriented perpendicular to the direction of longitudinal extent 40a of the wiper blade adapter 16a. The longitudinal extent of the further coupling element 26a is oriented parallel to the longitudinal extent of the coupling element 24a of the wiper arm adapter 14a. The further coupling element 26a is formed in a manner corresponding to the coupling element 24a. The further coupling element 26a has a circular cross section. The cross section of the further coupling element 26a is oriented perpendicular to the longitudinal extent of the further coupling element 26a. Alternatively, the cross section of the further coupling element 26a may be formed to be elliptical, oval, polygonal or the like. The further coupling element 26a is provided for partially receiving, in the assembled state, the coupling element 24a of the wiper arm adapter 14a. The further coupling element 26a is provided for form-fitting mounting of the coupling element 26a. The further coupling element 26a is provided for rotatable mounting of the coupling element 24a. The coupling elements 24a, 26a form a rotation axle around which the wiper blade adapter 16a is mounted rotatably relative to the wiper arm adapter 14a. The rotation axle is oriented parallel to the longitudinal extent of the coupling element 24a and/or to the longitudinal extent of the further coupling element 26a.

(17) In an assembled state, the wiper arm adapter 14a is arranged partially offset with respect to the wiper blade adapter 16a in a direction of transverse extent 42a of the wiper blade adapter 16a. In the assembled state, the coupling element 24a and the further coupling element 26a are arranged without an offset relative to one another in a direction of transverse extent 42a of the wiper blade adapter 16a. The wiper blade adapter 16a has at least one connection unit 44a. The connection unit 44a is provided for connection of the wiper blade adapter 16a to a spray unit 22a, in particular to a further spray channel connection element 28a of the spray unit 22a.

(18) The windshield wiper device 10a has the spray unit 22a. The spray unit 22a is provided for spraying, in a wiping operation state, a washing fluid onto the vehicle windshield to be wiped. The spray unit 22a has at least one spray channel unit 34a for this purpose. The spray channel unit 34a is arranged partially within the wiper blade adapter 16a. The spray channel unit 34a is partially enclosed by the main body 48a of the wiper blade adapter 16a.

(19) The spray channel unit 34a has at least one spray channel connection element 30a, which is arranged for guidance of the washing fluid within the wiper blade adapter 16a. The spray channel connection element 30a is provided for feeding the washing fluid to the at least one spray nozzle element.

(20) The spray unit 22a has at least the spray nozzle element for spraying of the washing fluid onto the vehicle windshield. The spray nozzle element is connected at least partially integrally to the spray channel connection element 30a. The spray unit 22a has the further spray channel connection element 28a. The spray channel connection element 28a is in the form of a tube element. The spray channel connection element 28a is provided for feeding the washing fluid to the spray channel unit 34a. The spray channel connection element 28a is connected at least in a force- and/or form-fitting manner to the wiper arm 66a. It is also conceivable for the spray channel connection element 28a to be connected in a materially bonded manner to the wiper arm 66a. The spray channel connection element 28a is arranged partially within the wiper arm housing 68a. The spray channel connection element 28a is arranged partially in an outer region of the wiper arm housing 68a. The spray unit 22a is arranged separately from the wiper arm adapter 14a. The further spray channel connection element 28a is provided for being connected, in the assembled state, to the wiper blade adapter 16a. The further spray channel connection element 28a is provided for being connected, in the assembled state, to the spray channel unit 34a, in particular to the spray channel connection element 30a. The further spray channel connection element 28a is provided for manual coupling to the wiper blade adapter 16a. The further spray channel connection element 28a is provided for manual coupling to the spray channel unit 34a, in particular to the spray channel connection unit 30a of the wiper blade adapter 16a.

(21) The spray unit 22a has a detent unit 32a. The detent unit 32a is formed integrally with the connection unit 44a. Alternatively, the detent unit 32a may be formed and/or arranged separately from the connection unit 44a. The detent unit 32a has a detent element 38a. The detent element 38a is formed in a force- and/or form-fitting manner with respect to the spray channel connection element 30a. The detent unit 32a has a further detent element 36a. The further detent element 36a is connected in a force- and/or form-fitting manner to the further spray channel connection element 28a. The detent element 38a and the further detent element 36a are provided for a detent connection with respect to one another. The detent element 38a and the further detent element 36a are provided for connection of the spray channel connection element 30a, in particular of the spray channel unit 34a, to the further spray channel connection element 28a.

(22) The windshield wiper device 10a has a heating unit 18a. The heating unit 18a is provided for heating, in a wiping operation state, the washing fluid. The heating unit 18a is provided for heating, in a wiping operation state, the wiper blade 20a. The heating unit 18a has at least one heating element 52a. The heating element 52a is in the form of an electrical heating element 52a. The heating element 52a is arranged partially in the wiper blade adapter 16a, in particular the main body 48a of the wiper blade adapter 16a. The heating element 52a is surrounded partially by a main body 48a of the wiper blade adapter 16a.

(23) The heating unit 18a has a heating connection element 50a. The heating connection element 50a is provided for supply of electrical energy to the heating element 52a. The heating connection element 50a is in the form of a connection cable or connection wire. The heating connection element 50a is arranged on the wiper arm 66a. The heating connection element 50a is arranged separately from the wiper arm adapter 14a. The heating connection element 50a is arranged partially within the wiper arm housing 68a. The heating connection element 50a is arranged partially in an outer region of the wiper arm housing 68a. The heating connection element 50a preferably has a protective element, for example a protective shell and/or a protective layer, which is provided for protecting the heating connection element 50a of the heating unit 18a against contact with a fluid. In particular, the heating connection element 50a is arranged separately from the spray channel connection element 28a. The heating connection element 50a is provided for manual fitting to a heating element 52a of the heating unit 18a in the wiper blade adapter 16a.

(24) The heating unit 18a has a further detent unit 54a. The further detent unit 54a is formed partially integrally with the connection unit 44a. Alternatively, the further detent unit 54a may be connected in a materially bonded manner to the connection unit 44a or be formed separately from the connection unit 44a. The further detent unit 54a has an additional detent element 56a. The additional detent element 56a is formed in a force- and/or form-fitting manner with respect to the heating element 52a. The detent unit 54a has a further additional detent element 58a. The further additional detent element 58a is connected in a force- and/or form-fitting manner to the heating connection element 50a. The additional detent element 56a and the further additional detent element 58a are provided for a detent connection with respect to one another. The additional detent element 56a and the further additional detent element 58a are provided for connection of the heating connection element 50a to the heating element 52a.

(25) FIG. 4 shows a method for assembling the windshield wiper device 10a. The method for assembling the windshield wiper device 10a has at least one method step 70a. In the method step 70a, the wiper arm adapter 14a is coupled laterally to the wiper blade adapter 16a. The coupling element 24a of the wiper arm adapter 14a is coupled laterally to the further coupling element 26a of the wiper blade adapter 16a.

(26) The method for assembling the windshield wiper device 10a has at least one further method step 72a. In the further method step 72a, the further spray channel connection element 28a is connected to the spray channel connection element 30a. Additionally, in the further method step 72a, the heating connection element 50a may be connected to the heating element 52a.

(27) The method for assembling the windshield wiper device 10a is not restricted to the stated method steps and/or a sequence of the method steps. In particular, the method may have a number of method steps that differs from the stated number of method steps.

(28) FIG. 5 shows a further exemplary embodiment of the invention. The following descriptions and the drawing are restricted essentially to the differences between the exemplary embodiments, wherein, with regard to components of identical designation, in particular with regard to components with the same reference signs, reference may basically also be made to the drawings and/or to the description of the other exemplary embodiment, in particular in FIGS. 1 to 4. For the purpose of distinguishing between the exemplary embodiments, the letter a has been placed after the reference signs of the exemplary embodiment in FIGS. 1 to 4. In the exemplary embodiment in FIG. 5, the letter a has been replaced by the letter b.

(29) FIG. 5 shows a further exemplary embodiment of a windshield wiper device 10b. The windshield wiper device 10b is part of a windshield wiper 12b. The windshield wiper device 10b has a wiper arm adapter 14b. The wiper arm adapter 14b has a coupling element 24b. The windshield wiper device 10b has a wiper blade adapter 16b. The wiper blade adapter 16b has a main body 48b. The wiper blade adapter 16b has a further coupling element 26b. The further coupling element 26b of the wiper blade adapter 16b and the coupling element 24b of the wiper arm adapter 14b are provided for lateral coupling, in particular side lock coupling, of the wiper arm adapter 14b to the wiper blade adapter 16b.

(30) The windshield wiper device 10b has a spray unit 22b. The spray unit 22b has a spray channel unit 34b. The spray channel unit 34b is arranged partially in the wiper blade adapter 16b. The spray channel unit 34b has a spray channel connection element 30b. The spray channel connection element 30b is arranged in the wiper blade adapter 16b. The spray channel connection element 30b is connected to the further coupling element 26b. The spray unit 22b has a further spray channel connection element 28b. The further spray channel connection element 28b is arranged partially within a wiper arm 66b of the windshield wiper 12b. The further spray channel connection element 28b is arranged partially in the wiper arm adapter 14b. The further spray channel connection element 28b is connected to the coupling element 24b. The further spray channel connection element 28b, in particular by contrast to the first exemplary embodiment, is arranged at least partially in the coupling element 24b.

(31) The spray channel connection element 30b of the wiper blade adapter 16b and the further spray channel connection element 28b of the wiper arm adapter 14b are provided for automatic coupling with coupling of the wiper arm adapter 14b to the wiper blade adapter 16b. The spray channel connection element 30b of the wiper blade adapter 16b and the further spray channel connection element 28b of the wiper arm adapter 14b are provided for automatic coupling with coupling of the further coupling element 26b to the coupling element 24b.

(32) It is conceivable for the spray unit 22b to have a detent unit 32b which has a detent element 36b, which is connected in a force- and/or form-fitting or materially bonded manner to the spray channel connection element 30b, and/or has a further detent element 38b, which is connected in a force- and/or form-fitting or materially bonded manner to the further spray channel connection element 28b, wherein the detent element 36b and the further detent element 38b are provided in particular for being connected, in an assembled state, to one another in a force- and/or form-fitting manner. It is moreover conceivable for the windshield wiper device 10b to have a heating unit 18b, with the heating unit 18b having a heating element 52b, which is arranged in the wiper blade adapter 16b, and having a heating connection element 50b, which is arranged partially in the coupling element 24b of the wiper arm adapter 14b. The heating unit 18b has a further detent unit 54b, which has an additional detent element 56b, which is connected in a force- and/or form-fitting or materially bonded manner to the heating element 52b, and/or has a further additional detent element 58b, which is connected in a force- and/or form-fitting or materially bonded manner to the heating connection element 50b, wherein the additional detent element 56b and the further additional detent element 58b are provided in particular for being connected to one another in a force- and/or form-fitting manner for the purpose of assembly.