WIPER DEVICE

Abstract

The invention relates to a wiper device with at least one fluid feed unit (10) comprising a fluid supply line (12) and a fluid connection element (14), the fluid connection element (14) being provided with a main fluid channel (28) that runs into the fluid supply line (12) and is connected to at least one secondary fluid channel (16) that also runs into the fluid supply line (12). It is proposed that a sealing means (18) cooperate with an area at one end (19) of the fluid supply line (12) such that an opening (15) in the fluid supply line (12) and the secondary fluid channel (16) are sealingly arranged within the fluid supply line (12).

Claims

1. A wiper device comprising at least one fluid feed unit (10) comprising a fluid supply line (12) and a fluid connection element (14), the fluid connection element (14) comprising a main fluid channel (28) opening into the fluid supply line (12) and connected to at least one secondary fluid channel (16) which also opens into the fluid supply line (12), wherein a sealing means (18) cooperates with a region at one end (19) of the fluid supply line (12) so that an opening (15) of the fluid supply line (12) and the secondary fluid channel (16) are sealingly arranged within the fluid supply line (12).

2. The wiper device according to claim 1, wherein a recess (22) is arranged between the end (19) of the fluid supply line (12) and the secondary fluid channel (16).

3. The wiper device according to claim 1, wherein the sealing means (18) is arranged externally on a portion at the end (19) of the fluid supply line (12), so that the fluid supply line (12) is clamped between the sealing means (18) and the fluid connection element (14).

4. The wiper device according claim 2, where the sealing means (18) deforms the fluid supply line (12) and presses it into the recess (22).

5. The wiper device according to claim 1, wherein the sealing means (18) is arranged between the fluid connection element (14) and the fluid supply line (12) so that the fluid supply line (12) is deformed outwardly.

6. The wiper device according to claim 2, wherein the sealing means (18) is arranged in the recess (22).

7. The wiper device according to claim 1, wherein the sealing means (18) is made integral with the fluid connection element (14).

8. The wiper device according to claim 7, wherein the sealing means (18) is formed as a radially rising bead.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Further advantages follow from the following description of the drawings. The drawings illustrate two embodiment examples of the invention. The drawings, the description, and the claims contain numerous features in combination. A skilled person will appropriately also consider the features individually and combine them into additional advantageous combinations.

[0029] The following are shown:

[0030] FIGS. 1A and 1B are schematic sectional views of a fluid feed unit according the disclosure.

[0031] FIGS. 1C and 1D are schematic sectional views of an alternative fluid feed unit according to the disclosure.

DETAILED DESCRIPTION

[0032] FIG. 1A shows a fluid feed unit 10 provided for a wiper device, which comprises a fluid supply line 12 and a fluid connection element 14. The fluid connection element 14 includes a main fluid channel 28 extending through the fluid connection element 14. The fluid connection element 14 can be tubular in shape and have two openings 15 associated with the main fluid channel 28. At least one opening 15 opens into the fluid supply line 12. The main fluid channel 28 is connected to at least one secondary fluid channel 16, which also opens into the fluid supply line 12. The secondary fluid channel 16 extends through a wall of the fluid connection element 14 and is oriented substantially transverse to the main fluid channel 28. The fluid supply line 12 rests on the opening of the secondary fluid channel 16 and seals it tightly. The fluid connection element 14 can protrude from the fluid supply line 12 at an end 19. A sealing means 18, which is particularly in the form of an O-ring, spring, cable tie, and/or clasp, cooperates with an area 17 at the end 19 of the fluid supply line 12, thereby sealing one of the openings 15 of the fluid supply line 12 and the secondary fluid channel 16 within the fluid supply line 12.

[0033] The sealing means 18 is arranged externally on the portion at the end 19 of the fluid supply line 12, such that the fluid supply line 12 is sandwiched between the sealing means 18 and the fluid connection element 14. The fluid supply line 12 and/or the sealing means 18 can include a resilient material. The sealing means 18 presses on the fluid supply line 12 and presses with a force, the material of the fluid supply line 12 against the outer peripheral surface of the fluid connection element 14. In the process, the material of the fluid supply line 12 can be stretched radially inward. The sealing means 18 is arranged between the end 19 and the secondary fluid channel 16. Area 17 also extends at least partially in this section.

[0034] A recess 22 is arranged between the end 19 of the fluid supply line 12 and the secondary fluid channel 16, as shown in FIG. 1B. The recess 22 is formed as a radially inwardly extending and circumferential depression. Furthermore, the recess 22 can be an annular groove that runs along the outer circumferential surface without interruption. The fluid supply line 12 is arranged on the recess 22 and preferably covers it completely. The sealing means 18 is arranged on the recess 22, wherein the fluid supply line 12 is arranged between the sealing means 18 and the fluid connection element 14. The sealing means 18 presses on the fluid supply line 12 and expands the wall of the fluid supply line 12 radially inward so that it projects into the recess 22. The recess 22 is at least partially filled by the material of the wall of the fluid supply line 12. Surfaces and/or edges of the recess 22 can be occupied by the wall of the fluid supply line 12, wherein the material of the wall is tightly sealed. This provides an additional seal.

[0035] In an alternative embodiment shown in FIG. 1C, the sealing means 18 is arranged between the fluid connection element 14 and the fluid supply line 12 so that the fluid supply line 12 is deformed outwardly. The force thereby acting radially inward, presses on the sealing means 18 and seals the end of the fluid supply line 12.

[0036] The sealing means 18 can be arranged directly in a recess 22, which is shown in FIG. 1D. The fluid supply line 12 can be arranged on the recess and sealing means 18. The sealing means 18 can be deformed so that it at least partially fills the recess 22 and presses on edges and surfaces of the recess 22.

[0037] In all embodiments, the sealing means 18 can alternatively be integrally formed with the fluid connection element 14. In this case, the sealing means 18 can be formed from the same material as the fluid connection element 14. The sealing means 22 can be formed as a radially rising bead.

LIST OF REFERENCE NUMBERS

[0038] 10 Fluid feed unit [0039] 12 Fluid supply line [0040] 14 Fluid connection element [0041] 15 Opening [0042] 16 Secondary fluid channel [0043] 18 Sealing means [0044] 19 End of line [0045] 22 Recess