Wiper device for a windscreen wiper with a spray function

Abstract

A wiper device having a wiper arm and a wiper blade device, wherein the wiper blade device has a wiper strip, a spoiler, and a wiper blade, and wherein the wiper blade device furthermore has an adapter with a fluid inlet and two fluid outlets to conduct fluid into fluid channels of the spoiler. The adapter is of multi-part design such that the adapter has a first part, which has the fluid inlet, a first outlet region and a second outlet region. The first part furthermore has a deflection geometry for conducting a fluid entering the fluid inlet to the first outlet region and the second outlet region. The adapter furthermore has a second part and a third part, wherein the second part closes the first outlet region and has the first fluid outlet, and wherein the third part closes the second outlet region and has the second fluid outlet.

Claims

1. A wiper device (10) for a windscreen of a vehicle, the wiper device (10) having a wiper arm (12) and a wiper blade device (14), wherein the wiper blade device (14) has a wiper strip (16), a spoiler (18) which is fastenable thereto, and a wiper blade (20) which is fastenable to the wiper strip (16) or to the spoiler (18), and wherein the wiper blade device (14) furthermore has an adapter (22) which has a fluid inlet (24) and first and second fluid outlets (26), (28) to conduct fluid introduced into the fluid inlet (24) through the fluid outlets (26, 28) into fluid channels (30) of the spoiler (18), characterized in that the adapter (22) is of multi-part design in such a manner that the adapter (22) has a first part (32), which has the fluid inlet (24), a first outlet region (36) and a second outlet region (38), wherein the first part (32) furthermore has a deflection geometry (40) for conducting a fluid entering the fluid inlet (24) to the first outlet region (36) and the second outlet region (38), and wherein the adapter (22) furthermore has a second part (33) and a third part (34), wherein the second part (33) closes the first outlet region (36) and has the first fluid outlet (26), and wherein the third part (34) closes the second outlet region (38) and has the second fluid outlet (28), wherein the adapter (22) has a main axis (42) which runs from the first fluid outlet (26) to the second fluid outlet (28), and in that the deflection geometry (40) comprises a first region that runs on the main axis (42) adjacent to the first fluid outlet (26), a second region, spaced from the first region, that runs on the main axis (42) adjacent to the second fluid outlet (28), and a third region that runs parallel to the main axis (42) but offset therefrom, wherein the deflection geometry (40) includes a fourth region that extends directly between the first region and the third region along a direction that extends at a non-zero angle relative to both the main axis (42) and the third region, and a fifth region that extends directly between the first region and the third region along a direction that extends at a non-zero angle relative to both the main axis (42) and the third region.

2. The wiper device (10) according to claim 1, characterized in that the second part (33) and the third part (34) are fastened to the first part (32) by a nonreleasable connection.

3. The wiper device (10) according to claim 2, characterized in that the second part (33) and the third part (34) are connected to the first part (32) by a clip connection or by welding or adhesive bonding.

4. The wiper device (10) according to claim 1, characterized in that the second part (33) and the third part (34) have a fluid channel (44) which lies completely on the main axis (42).

5. The wiper device (10) according to claim 1, characterized in that the wiper device (10) has a connector (48) which is fixable to the adapter (22), and in that the connector (48) has a wiper arm receptacle (50) in which the wiper arm (12) is fixable.

6. The wiper device (10) according to claim 5, characterized in that the wiper arm (12) is fixed in the wiper arm receptacle (50) by a spring-pretensioned fixing element.

7. The wiper device (10) according to claim 1, characterized in that the fluid inlet (24) of the adapter (22) is a male connection.

8. The wiper device (10) according to claim 1, characterized in that at least one of the second part (33) and the third part (34) has a fluid nozzle for spraying out fluid.

9. The wiper device (10) according to claim 1, characterized in that the spoiler (18) has a multiplicity of fluid nozzles for spraying out fluid.

10. The wiper device (10) according to claim 1, characterized in that the adapter (22) has a main axis (42) which runs from the first fluid outlet (26) to the second fluid outlet (28), wherein the adapter (22) permits fluid flow into the deflection geometry (40), wherein a portion of the deflection geometry (40) runs parallel to the main axis (42) but offset therefrom, wherein the deflection geometry (40) is arranged such that fluid is configured to flow from the fluid inlet (24) and into the deflection geometry (40), and then from the deflection geometry (40) and into the first fluid outlet (26) or the second fluid outlet (28).

11. The wiper device (10) according to claim 1, wherein the second fluid outlet (28) is configured to be inserted into one of the fluid channels (30).

12. The wiper device (10) according to claim 1, wherein the fourth region extends perpendicularly between the first region and the third region, and wherein the fifth region extends perpendicularly between the second region and the third region.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further advantages and advantageous configurations of the subjects according to the invention are illustrated by the drawing and explained in the description below, wherein the features described can be the subject matter of the present invention individually or in any combination, unless the opposite is explicitly evident from the context. It should be noted here that the drawing is only descriptive in nature and is not intended to restrict the invention in any form. In the drawing

(2) FIG. 1 shows a schematic illustration of a wiper device according to one configuration of the present invention;

(3) FIG. 2 shows a detailed view of parts of the configuration from FIG. 1 showing a construction of the wiper blade device;

(4) FIG. 3 shows the detailed view from FIG. 2 in a partially installed state;

(5) FIG. 4 shows a further detailed view from FIG. 2 in a partially installed state;

(6) FIG. 5 shows a further detailed view of parts of the configuration from FIG. 1 showing an adapter for a wiper device with a spoiler;

(7) FIG. 6 shows a further detailed view of an adapter for a wiper device;

(8) FIG. 7 shows a partial exploded illustration of the view from FIG. 6;

(9) FIG. 8 shows a functional illustration of the adapter from FIG. 6 for a wiper device;

(10) FIG. 9 shows a further functional illustration of the adapter from FIG. 6 for a wiper device;

(11) FIG. 10 shows a view of the adapter with a connector in a non-installed state;

(12) FIG. 11 shows a view of the adapter with a connector from FIG. 10 in an installed state; and

(13) FIG. 12 shows a further view of the adapter with a connector from FIG. 10 in an installed state.

DETAILED DESCRIPTION

(14) FIG. 1 shows a configuration of a wiper device 10 according to the present invention. FIG. 1 here shows the wiper device 10 in an operating state or in an assembled state, and FIGS. 2 and 3 show the wiper device 10 in greater detail and in its individual parts and in an exploded view.

(15) The wiper device 10 is used in particular for a windscreen wiper of a vehicle and can be installed as such on a vehicle adjacent to a windscreen.

(16) It is shown that the wiper device 10 comprises a wiper arm 12 and a wiper blade device 14. With regard to the wiper blade device 14, it can furthermore be seen in particular in FIG. 2 that the latter has a wiper strip 16, a spoiler 18 which is fastenable thereto, and a wiper blade 20 which is fastenable to the wiper strip 16 or to the spoiler 18. It is furthermore provided that the wiper blade device 14 has an adapter 22 which has a fluid inlet 24 and two fluid outlets 26, 28 in order to conduct cleaning fluid introduced into the fluid inlet 24 through the fluid outlets 26, 28 into fluid channels 30 of the spoiler 18. This is shown in greater detail in the following figures.

(17) FIG. 3 furthermore shows the basic construction of the wiper device 10. It is shown in detail that the adapter 22 can be pushed onto the wiper strip 16. Furthermore, the adapter 22 can be clipped or welded to the wiper strip 16. On both sides of the adapter 22, the spoiler 18, which is configured in two parts, can likewise be pushed or clipped onto the wiper strip 16 and can come into contact with the adapter 22, as is intended to be clarified by the arrows.

(18) FIG. 4 shows a sectional detailed view of the adapter 22 with the fluid outlets 26, 28 which are connected to one part each of the spoiler 18 such that cleaning fluid can flow from the adapter 22 into the fluid channels 30 of the spoiler 18, as is intended to be clarified by the arrows.

(19) This is shown in detail in FIG. 5 which shows a side view of the spoiler 18 with a fluid channel 30 which is arranged therein and can be connected to the fluid nozzles of the spoiler 18 and to the fluid outlet 28 of the adapter. Also shown is a fastening geometry 19 in which the wiper blade 20 can be fastened.

(20) FIGS. 6 and 7 furthermore show that the adapter 22 is of multi-part design in such a manner that the adapter 22 has a first part 32, which has the fluid inlet 24, a first outlet region 36 and a second outlet region 38. It is furthermore shown that the adapter 22 also has a second part 33 and a third part 34, wherein the second part 33 closes the first outlet region 36 and has the first fluid outlet 26, and wherein the third part 34 closes the second outlet region 38 and has the second fluid outlet 28. It is furthermore indicated that the second part 33 and the third part 34 are fastened to the first part 32 by a nonreleasable connection, for example are connected, according to the figures shown, in particular by means of welding or adhesive bonding.

(21) The configuration of the adapter 22 or of the first part 32 for conducting the cleaning fluid is shown in greater detail in FIGS. 8 and 9. It is indicated in these figures that the first part 32 furthermore has a deflection geometry 40 for conducting or for deflecting a fluid entering the fluid inlet 24 to the first outlet region 36 and the second outlet region 38. It is shown in greater detail that the adapter 22 has a main axis 42 which runs from the first fluid outlet 26 to the second fluid outlet 28, and that the deflection geometry 40 runs on the main axis 42 adjacent to the first fluid outlet 26 and the second fluid outlet 28. Furthermore, it is provided that the deflection geometry 40 comprises at least one further region 44 in which the deflection geometry 40 runs parallel to the main axis 42, but differently therefrom. The cleaning fluid is therefore diverted in particular in the first part 32 of the adapter 22.

(22) With regard to the second part 33 and the third part 34, it is provided, by contrast, that they have a fluid channel 44, 46 that lies completely on the main axis 42. In other words, the cleaning fluid flows through the second part 33 and third part 34 without being deflected.

(23) It is furthermore shown that an axis 66 defined by the fluid inlet 24 lies at an angle, which can be, for example, 10, to the main axis 40.

(24) It is furthermore shown in FIGS. 10 to 12 that the wiper device 10 has a connector 48 which is fixable to the adapter 22. The connector 48 furthermore comprises a wiper arm receptacle 50 in which the wiper arm 12 is fixable. In particular, it can preferably be provided in this regard that the wiper arm 12 is fixed in the wiper arm receptacle 50 by a spring-pretensioned fixing element. For example, for releasing said fixing, the fixing element which is pretensioned by spring force can be pressed, by pressing of a button 52, out of the fixing geometry of the wiper arm 12 counter to the spring force in order to thereby release a fixing. The fixing geometry is shown, for example, in FIG. 3. The button 52 can be, for example, part of the connector 48, as is shown in FIGS. 10 to 12.