Wiper arm comprising a wiper blade which is connected to the same in an articulated manner

• US 6,820,302 B2
• Filed: 04/23/2003
• Issued: 11/23/2004
• Est. Priority Date: 09/01/2001
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Zimmer, Joachim
• Primary Examiner(s): Graham, Gary K.
• Application Number:
  US10/399,892
• Publication Number:
  US 20040006840A1
• Time in Patent Office: 580 Days
• Field of Search: 152/503.2, 152/503.51, 152/504.4, 152/504.3, 152/503.1, 152/502.3
• US Class Current: 15/250.32
• CPC Class Codes: B60S 1/32 characterised by constructional features of wiper blade arms or blades
• CPC Class Codes: B60S 1/3497 Additional means for guiding the blade other than the arm or blade joint
• CPC Class Codes: B60S 1/38 Wiper blades provided with liquid spreading means B60S1/524; provided with gas spreading means B60S1/546
• CPC Class Codes: B60S 1/3894 having a particular shape
• CPC Class Codes: B60S 2001/3822 characterised by additional means to prevent longitudinal sliding of squeegee in support, e.g. clips

Abstract

The invention starts with a wiper arm (10) with a wiper blade (20) that is connected in an articulated manner, which includes a wiper strip support (22) and wiper strip (24) and is laterally guided vis-à-vis the wiper arm (10) by a device (28) with an elastic connecting blade (34), whereby a first end (30) of the connecting blade (34) is fixed on an articulated part (12) of the wiper arm (10). It is proposed that a second end (32) of the connecting blade (34) be fixed on the wiper blade (20) and the connecting blade (34) feature an area (40, 46, 48) that is flexible in a longitudinal direction (54).

Claims

1. A wiper arm (10) with a wiper blade (20) that is connected in an articulated manner, said wiper blade includes a wiper strip support (22) and wiper strip (24) and is laterally guided vis-à

-vis the wiper arm (10) by a device (28) with an elogated elastic connecting blade (34), whereby the first end (30) of the connecting blade (34) is fixed on an articulated part (12) of the wiper arm (10), is characterized in that a second end (32) of the connecting blade (34) is fixed on the wiper blade (20) and the connecting blade (34) features an area (40, 46, 48) that is flexible in a longitudinal direction (54) along the connecting blade allowing longitudinal compensation along the length of the connecting blade.

2. A wiper arm (10), according to claim 1, is characterized in that the connecting blade (34) features an initial stress in the longitudinal direction (54) in an assembled state.

3. The wiper arm (10), according to claim 1, is characterized in that the connecting blade (34) is fabricated of spring steel.

4. The wiper arm (10), according to claim 1, is characterized in that the first end (30) is detachably fixed to the wiper arm (10).

5. The wiper arm (10), according to claim 4, is characterized in that the first end (30) of the connecting blade (34) bears a coupling element (42, 44), which is clamped between side cheeks (36) of the articulated part (12).

6. The wiper arm (10), according to claim 4, is characterized in that a coupling element (42, 44, 52) is fastened to or formed on the first end (30) of the connecting blade (34), whose coupling element cooperates with a corresponding coupling element (42, 44), which is connected to the articulated part (12).

7. Wiper arm (10) according to claim 6, characterized in that corresponding coupling elements (52) form a ball-and-socket joint.

8. The wiper arm (10), according to claim 1, is characterized in that a clip piece (50) is fastened to the first end (30) of the connecting blade (34), which can be locked into the corresponding openings or indentations of the articulated part (12) with noses (62).

9. The wiper blade (20), according to claim 1, is characterized in that the second end (32) of the connecting blade (34) is formed or cast on a cap (60) made of plastic on the end of the wiper blade support (22) or the wiper strip (24).

10. The wiper arm (10), according to claim 1, is characterized in that a coupling element (42, 44, 52) is fastened to or formed on the second end (32) of the connecting blade (34), whose coupling element cooperates with a corresponding coupling element (42, 44), which is connected to the wiper blade (20).

11. The wiper arm (10), according to claim 10, is characterized in that corresponding coupling elements (52) form a ball-and-socket joint.

12. The wiper blade (20), according to claim 1, is characterized in that the connecting blade (34) has at least one undulated area (40, 46, 48) transverse to the longitudinal direction (54).

13. The wiper blade (20), according to claim 12, is characterized in that the width of the connecting blade (34) in the undulated area (40, 46, 48) runs approximately parallel and/or perpendicular to the windshield (26).