Windscreen wiper system

• US 7,908,704 B2
• Filed: 11/02/2005
• Issued: 03/22/2011
• Est. Priority Date: 12/29/2004
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kraemer, Godelieve
• Primary Examiner(s): Graham; Gary K
• Application Number:
  US11/813,152
• Publication Number:
  US 20080201891A1
• Time in Patent Office: 1,966 Days
• Field of Search: 152/503.51, 152/503.52, 152/502.1, 152/503.1
• US Class Current: 15/250.352
• CPC Class Codes: B60S 1/3452 the joint being a snap fit pivot joint
• CPC Class Codes: B60S 1/3454 the joint being at end of mounting head furthest away from blade
• CPC Class Codes: B60S 1/3484 integral with arm or link piece

Abstract

The invention relates to a windscreen wiper system, in particular for a motor vehicle, comprising at least one wiper arm provided with an elastic blade (21) and a fixing element (60). The known wiper arms comprise a tension spring which presses the wiper blade against a pane along with the windscreen wiper operation and maintains said wiper blade in a folded position with respect to the pane when the wiper blade is changed. Said wiper arms require a relatively important number of components and, for this reason, are relatively expensive. The aim of said invention is to make it possible to produce the windscreen wiper system in a more economical manner. For this purpose, the inventive elastic blade (21) is arranged in such a way that it is pivotable about the fixing element (60).

Claims

1. Windshield wiper device comprising at least one wiper arm (10) provided with an elastic blade (21) and a fixing element (20, 60), characterized in that the elastic blade (21) is arranged such that it can pivot around the fixing element (20, 60), wherein a spring clip (30) is cut out of the elastic blade (21), and a nub (63) is provided on the fixing element (60), which nub engages in an opening (32) through the elastic blade (21), the opening (32) corresponding to the cut-out spring clip (30).

2. Windshield wiper device according to claim 1, characterized in that the fixing element (20, 60) has an articulation (61).

3. Windshield wiper device according to claim 2, characterized in that the articulation (61) has an articulated axis (62).

4. Windshield wiper device according to claim 3, characterized in that the elastic blade (21) has a hook (22) that can be suspended on the articulated axis (62).

5. Windshield wiper device according to claim 4, characterized in that the hook (22) that can be suspended on the articulated axis (62) has an extension (23) on its free end.

6. Windshield wiper device according to claim 5, characterized in that the extension (23) can be bent around the articulated axis (62) after the hook (22) has been suspended on the articulated axis (62).

7. Windshield wiper device according to claim 3, characterized in that the articulated axis (62) is a rivet pin pressed into the fixing element (20, 60).

8. Windshield wiper device according to claim 1, characterized in that the free end of the spring clip (30) is bent.

9. Windshield wiper device according to claim 1, characterized in that the spring clip (30) has a crimp (31).

10. Windshield wiper device according to claim 1, characterized in that the fixing element (60) has a guide groove (64) for guiding the spring clip (30).

11. Windshield wiper device according to claim 1, characterized in that the fixing element (60) is an injection molded part.

12. Windshield wiper device according to claim 11, characterized in that the fixing element (60) can be manufactured of aluminum, zinc or a reinforced plastic.

13. Windshield wiper device according to claim 1, characterized in that a covering (140) can be attached over the elastic blade (21).

14. Windshield wiper device according to claim 13, characterized in that the covering (140) has a bearing surface (150), which is adjacent to the fixing element when the wiper arm is swung away from the window.

15. Windshield wiper device according to claim 13, characterized in that the covering (140) is fabricated of plastic.

16. Windshield wiper device according to claim 15, characterized in that the elastic blade (21) has a bearing surface (250), which is adjacent to the fixing element (60) when the wiper arm is swung away from the window.