Wiper device comprising a flat wiper blade and wiper arm

• US 20050177970A1
• Filed: 03/17/2003
• Published: 08/18/2005
• Est. Priority Date: 03/21/2002
• Status: Active Grant

• Current Assignee: Valeo Systemes D'Essuyage (Valeo SE)
• Original Assignee: Valeo Systemes D'Essuyage (Valeo SE)
• Inventors: Fink, Andreas, Scholl, Wolfgang, Schremmer, Gerhard, Ernstmeier, Heiko
• Granted Patent: US 7,716,780 B2
• Time in Patent Office: Days
• US Class Current: 15/250.320
• CPC Class Codes: B60S 1/3849 Connectors therefor; Connection to wiper arm; Attached to blade
• CPC Class Codes: B60S 1/4038 for arms provided with a channel-shaped end
• CPC Class Codes: B60S 1/4064 the channel-shaped end being provided with protrusions on, or holes in, the side walls to create a pivot
• CPC Class Codes: B60S 2001/4051 the intermediate element engaging the side walls of the arm
• CPC Class Codes: B60S 2001/4054 the intermediate element engaging the back part of the arm

Abstract

The invention relates to a wiper device (10), in particular for wiping vehicle panes. Said device comprises a driveable wiper arm (14), with a flat wiper blade (16) that can be fastened to said arm (14). The wiper blade comprises a wiper-blade element (18), support means (20) for supporting said element (18), said means being preferably configured in the form of strip-type, elongated spring tongues and connection means for connection to the free end (12) of the wiper arm (14). The connection means comprise a support element that is fixed onto the support means and a connecting element that is mounted so that it can pivot in a limited manner. The connecting element can be detachably connected to the free end of the wiper arm.

Claims

1. A wiper device, in particular for wiping vehicle windscreens, having a drivable wiper arm and a flat wiper blade which can be arranged on the wiper arm, which flat wiper blade comprises a wiper blade rubber, support means which support the wiper blade rubber and may preferably be designed in the form of band-like elongate spring blades, and connecting means for connection to the free end of the wiper arm, characterized in that the connecting means comprise a support element which is fixedly arranged on the support means and a connecting element which is arranged such that it can partially pivot with respect to the support element, wherein the connecting element can be releasably connected to the free end of the wiper arm.

2. The wiper device as claimed in claim 1, characterized in that the free end of the wiper arm preferably has a number of tongues which extend in the longitudinal direction and in the assembled state engage in tongue receivers provided on the connecting element.

3. The wiper device as claimed in claim 2, characterized in that the tongues are made in one piece with the free end of the wiper arm and project at least partially in the direction towards the windscreen.

4. The wiper device as claimed in claim 2, characterized in that the connection of the wiper arm to the connecting element is effected in the direction of the longitudinal axis of the wiper arm, wherein the tongues are received by the tongue receivers.

5. The wiper device as claimed in claim 1, characterized in that the end face of the free end of the wiper arm in the assembled state bears at least partially in a form-fitting manner against a support edge of the connecting element.

6. The wiper device as claimed in claim 1, characterized in that the free end of the wiper arm has retaining sections that run essentially transversely to the longitudinal direction of the wiper arm and preferably essentially perpendicular to the windscreen, which retaining sections in the assembled state interact with actuating sections arranged on the connecting element, which actuating sections allow release of the wiper blade from the wiper arm upon actuation.

7. The wiper device as claimed in claim 6, characterized in that the retaining sections are designed as retaining edges which in the assembled state are latched behind by the actuating sections such that a movement of the connecting element with respect to the wiper arm is prevented.

8. The wiper device as claimed in claim 7, characterized in that the actuating sections do not project beyond the outer contour of the free end of the wiper arm.

9. The wiper device as claimed in claim 6, characterized in that the actuating sections are arranged at the free ends of spring tongues which in each case are arranged so that they extend in the longitudinal direction on opposite sides of the connecting element such that they are essentially parallel to the windscreen and can be actuated towards one another counter to a prestress force.

10. The wiper device as claimed in claim 1, characterized in that the free end of the wiper arm (14) comprises a U-shaped section, the open side of which points in the direction of the windscreen that is to be wiped.

11. The wiper device as claimed in claim 10, characterized in that in the assembled state the U-shaped section engages around or behind the connecting element at least partially in a form-fitting manner in order to receive transverse forces.

12. The wiper device as claimed in claim 10, characterized in that the tongues are arranged on the transverse web and the retaining sections are arranged on the legs of the U-shaped section.

13. The wiper device as claimed in claim 1, characterized in that the free end of the wiper arm and preferably the transverse web of the U-shaped section has at least one cutout in which the connecting element engages at least partially.

14. The wiper device as claimed in claim 1, characterized in that the connecting element has a section that is essentially U-shaped in cross section, the legs of which engage around and/or behind the support element in the assembled state, wherein pivot means are arranged between the legs and the support element.

15. The wiper device as claimed in claim 1, characterized in that the connecting element or the support element has pivot pins which run transversely to the longitudinal direction and lie in a line, which pivot pins engage at least partially in pivot pin receivers provided on the support element or connecting element, for the ability to at least partially pivot.

16. The wiper device as claimed in claim 14, characterized in that the two legs of the connecting element and the support element have openings which run transversely to the longitudinal direction and lie in a line, which openings receive a pivot pin.

17. The wiper device as claimed in claim 1, characterized in that the support element is arranged directly on the support means.

18. A flat wiper blade and/or wiper arm for a wiper device as claimed in any of the preceding claims.

19. The wiper device as claimed in claim 3, characterized in that the connection of the wiper arm to the connecting element is effected in the direction of the longitudinal axis of the wiper arm, wherein the tongues are received by the tongue receivers.

20. The wiper device as claimed in claim 7, characterized in that the actuating sections are arranged at the free ends of spring tongues which in each case are arranged so that they extend in the longitudinal direction on opposite sides of the connecting element such that they are essentially parallel to the windscreen and can be actuated towards one another counter to a prestress force.

21. The wiper device as claimed in claim 8, characterized in that the actuating sections are arranged at the free ends of spring tongues which in each case are arranged so that they extend in the longitudinal direction on opposite sides of the connecting element such that they are essentially parallel to the windscreen and can be actuated towards one another counter to a prestress force.

22. The wiper device as claimed in claim 11, characterized in that the tongues are arranged on the transverse web and the retaining sections are arranged on the legs of the U-shaped section.

23. The wiper device as claimed in claim 15, characterized in that the two legs of the connecting element and the support element have openings which run transversely to the longitudinal direction and lie in a line, which openings receive a pivot pin.