Windscreen wiping device, particularly for a motor vehicle

• US 8,156,604 B2
• Filed: 12/14/2004
• Issued: 04/17/2012
• Est. Priority Date: 02/06/2004
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kraus, Achim, Zimmer, Joachim, Rapp, Juergen, Wickermann, Hans, Fleischer, Claus, Karle, Marc-Oliver, Reiser, Christian, Volz, Heiko, Joerger, Martin, Koehn, Swen
• Primary Examiner(s): GRAHAM, GARY K
• Application Number:
  US10/588,427
• Publication Number:
  US 20090049637A1
• Time in Patent Office: 2,681 Days
• Field of Search: 152/503, 152/503.1, 152/500.01, 152/503.4, 384/903, 384/226, 384/275, 384/276, 384/415, 384/295, 384/296, 384/624, 403/DIG.3, 403/2, 294/28, 294/45, 295/05, 295/10
• US Class Current: 15/250.31
• CPC Class Codes: B60S 1/0422 having a separate transverse element
• CPC Class Codes: B60S 1/0488 Wiper arrangement for crash protection or impact absorption
• CPC Class Codes: Y10S 384/903 Retaining ring
• CPC Class Codes: Y10S 403/03 Load-responsive release
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49861 Sizing mating parts during final positional association
• CPC Class Codes: Y10T 29/49908 Joining by deforming
• CPC Class Codes: Y10T 29/49917 by necking in cup or tube wall

Abstract

A windshield wiper device (10), particularly for a motor vehicle, is proposed. This windshield wiper device comprises a wiper bearing (14) supporting a wiper shaft (16), which has an undercut (48) in which a securing device (40) for axially fixing the wiper shaft (16) in the wiper bearing (14) is arranged. The securing device (40) can be displaced by the effects of a defined axial force component (F) on the wiper shaft (16), whereby the wiper shaft (16) can be displaced in relationship to the wiper bearing (14). According to the invention, the securing device (40) comprises a bushing section (42) with an indentation (50), which engages in the undercut (48) of the wiper shaft (16).

Claims

1. Windshield wiper device (10) comprising at least one wiper bearing (14) having an end surface and an outer surface and supporting at least one wiper shaft (16), which has at least one undercut (48) in which a securing device (40) for axially fixing the wiper shaft (16) in the wiper bearing (14) is arranged, which securing device is displaced by the effects of a defined axial force component (F) on the wiper shaft (16), whereby the wiper shaft (16) is displaced in relationship to the wiper bearing (14), characterized in that the securing device (40) comprises a bushing section (42) supporting the wiper shaft (16) and with an indentation (50), which engages in the undercut (48) of the wiper shaft (16), a flange section (44) attached to the bushing section (42) and engaging the end surface of the wiper bearing (14), and a bushing-shaped closure section (46) attached to the flange section (44) and surrounding a portion of the outer surface of the wiper bearing (14).

2. Windshield wiper device (10) according to claim 1, characterized in that undercut (48) is embodied to be radially circumferential.

3. Windshield wiper device (10) according to claim 2, characterized in that undercut (48) is tub-shaped.

4. Windshield wiper device (10) according to claim 3, characterized in that the indentation (50) is embodied to be radially circumferential.

5. Windshield wiper device (10) according to claim 4, characterized in that indentation (50) is embodied to be tub-shaped in cross section.

6. Windshield wiper device (10) according to claim 5, characterized in that the securing device (40) is embodied essentially rotationally symmetrically and essentially S-shaped in cross section.

7. Windshield wiper device (10) according to claim 6, characterized in that the securing device (40) is embodied essentially rotationally symmetrically and has a radial gap.

8. Windshield wiper device (10) according to claim 7, characterized in that the securing device (40) is embodied at least partially as a punched bent part made of sheet metal.

9. Windshield wiper device (10) according to claim 7, characterized in that the securing device (40) is embodied at least partially of fiber reinforced plastic.

10. Windshield wiper device (10) according to claim 1, characterized in that the indentation (50) is embodied to be radially circumferential.

11. Windshield wiper device (10) according to claim 10, characterized in that indentation (50) is embodied to be tub-shaped in cross section.

12. Windshield wiper device (10) according to claim 1, characterized in that the securing device (40) is embodied essentially rotationally symmetrically and essentially S-shaped in cross section.

13. Windshield wiper device (10) according to claim 1, characterized in that the securing device (40) is embodied essentially rotationally symmetrically and has a radial gap.

14. Windshield wiper device (10) according to claim 1, characterized in that the securing device (40) is embodied at least partially as a punched bent part made of sheet metal.

15. Windshield wiper device (10) according to claim 1, characterized in that the securing device (40) is embodied at least partially of fiber reinforced plastic.

16. Windshield wiper device (10) according to claim 1, characterized in that the bushing section (42) has a wall with an inner surface and an outer surface, the indentation being provided on the inner surface and a corresponding recess being provided on the outer surface.

17. Windshield wiper device (10) according to claim 1, characterized in that the bushing section (42) has a wall with an inner surface and an outer surface, the wall having a first cylindrical portion on one axial side of the indentation and a second cylindrical portion on an opposite axial side of the indentation, the wall being bent between the cylindrical portions to provide the indentation on the inner surface and a corresponding recess on the outer surface.

18. Windshield wiper device (10) comprising at least one wiper bearing (14) having an end surface and an outer surface and supporting at least one wiper shaft (16), which has at least one undercut (48) in which a securing device (40) for axially fixing the wiper shaft (16) in the wiper bearing (14) is arranged, which securing device is displaced by the effects of a defined axial force component (F) on the wiper shaft (16), whereby the wiper shaft (16) is displaced in relationship to the wiper bearing (14), characterized in that the securing device (40) comprises a bushing section (42) supporting the wiper shaft (16) and with an indentation (50), which engages in the undercut (48) of the wiper shaft (16), the bushing section having a wall with an inner surface and an outer surface, the wall having a first cylindrical portion on one axial side of the indentation and a second cylindrical portion on an opposite axial side of the indentation, the wall being bent between the cylindrical portions to provide the indentation on the inner surface and a corresponding recess on the outer surface, the securing device also comprising a flange section (44) attached to the second cylindrical portion of the bushing section (42) and engaging the end surface of the wiper bearing (14), and a bushing-shaped closure section (46) attached to the flange section (44) and surrounding a portion of the outer surface of the wiper bearing (14).

19. A method of installing a windshield wiper device (10), the windshield wiper device including at least one wiper bearing (14) having an end surface and an outer surface and supporting at least one wiper shaft (16), which has at least one undercut (48) in which a securing device (40) for axially fixing the wiper shaft in the wiper bearing is arranged, which securing device is displaced by the effects of a defined axial force component (F) on the wiper shaft, whereby the wiper shaft is displaced in relationship to the wiper bearing, the securing device (40) comprising a bushing section (42) having a wall with an inner surface and an outer surface, a flange section (44) attached to the bushing section, and a bushing-shaped closure section (46) attached to the flange section, the method comprising positioning the securing device with the bushing section supporting the wiper shaft, the flange section engaging the end surface of the wiper bearing, and the closure section surrounding a portion of the outer surface of the wiper bearing, and pressing the bushing section with an external force to form an indentation (50), which engages in the undercut of the wiper shaft.

20. The method according to claim 19, characterized in that the wall has a first cylindrical portion on one axial side of the indentation and a second cylindrical portion on an opposite axial side of the indentation, and in that pressing includes bending the wall between the cylindrical portions to provide the indentation on the inner surface and a corresponding recess on the outer surface.