Wiper blade for window panes of motor vehicles

• US 6,523,218 B1
• Filed: 09/15/2000
• Issued: 02/25/2003
• Est. Priority Date: 12/07/1998
• Status: Expired due to Term

• Current Assignee: Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Kotlarski, Thomas
• Primary Examiner(s): Graham, Gary K.
• Application Number:
  US09/601,747
• Time in Patent Office: 893 Days
• Field of Search: 152/502.01, 152/504.3, 152/504.4, 152/503.2, 152/503.61, 152/504.53, 152/504.52, 152/504.51, 152/504.8
• US Class Current: 15/250.201
• CPC Class Codes: B60S 1/3806 Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
• CPC Class Codes: B60S 1/381 Spoilers mounted on the squeegee or on the vertebra
• CPC Class Codes: B60S 1/3863 Connectors having a spoiler
• CPC Class Codes: B60S 1/3874 with a reinforcing vertebra
• CPC Class Codes: B60S 1/3875 rectangular section
• CPC Class Codes: B60S 1/40 Connections between blades and arms
• CPC Class Codes: B60S 2001/3812 Means of supporting or holding the squeegee or blade rubber
• CPC Class Codes: B60S 2001/382 the backing strip being an essentially planar reinforcing strip, e.g. vertebra

Abstract

A wiper blade (10) for windows of motor vehicles is proposed, which is equipped with an elastic, elongated support element for an elongated wiper strip (22), which strip comprises a flexible material and can be placed against the window (28) to be wiped with a wiper lip (30) and which on its long sides has opposed longitudinal grooves (34), in which spaced-apart longitudinal rails (32) of the support element (12) are located, which rails are secured in the grooves (34) by at least one retainer (36,38,40) that spans the spacing on the side of the support element (12) remote from the wiper lip (30). A spoiler (23) extends in the longitudinal direction of the support element, and for each retainer (36,38,40), the spoiler has a recess (46,48,50), which extends crosswise to the longitudinal direction of the wiper blade (10). The outer profile of the retainer is at least approximately adapted to the profile of the spoiler.

Claims

1. An elongated wiper blade (10) for windows of motor vehicles, having an elastic, elongated support element for an elongated wiper strip (22), which strip comprises a flexible material and can be placed against the window (28) to be wiped with a wiper lip (30) and which on its long sides has opposed longitudinal grooves (34), in which spaced-apart longitudinal rails (32) of the support element (12) are located, which rails are secured in the grooves (34) by at least one retainer (36, 38, 40) that spans a spacing between sides of the support element (12) remote from the wiper lip (30), characterized in that the wiper blade (10), on the side of the support element (12) opposite the wiper lip (30), is provided with a spoiler (23) having an outer profile, extending in the longitudinal direction of the support element, and for each retainer (34, 36, 38), the spoiler has a recess (46, 48, and 50, respectively) receiving said at least one retainer, which recess, extends crosswise to the longitudinal direction of the wiper blade (10), and in transverse cross section, an outer profile of the at least one retainer located in the region of the spoiler (23) is at least approximately adapted to the outer profile of the spoiler.

2. The wiper blade of claim 1, characterized in that the at least one retainer (36, 136, 236, respectively) is disposed in a longitudinal center portion of the support element (12) and is provided with means (52) for attaching a driven wiper arm (18).

3. The wiper blade of claim 2, characterized in that an additional retainer (38) is disposed on one end of the support element (12) and is provided with means (54) for covering end edges (56) of the longitudinal rails (32).

4. The wiper blade of claim 3, characterized in that a further retainer (40) is disposed between the retainer (36) disposed in the longitudinal center portion and the additional retainer (38) disposed on the end of the support element (12).

5. The wiper blade of claim 1, characterized in that each retainer (36, 38, and 40, respectively), with at least one claw (58), clasps a respective one of the two longitudinal rails (32) on a longitudinal edges (33).

6. The wiper blade of claim 5, characterized in that the at least one recess (46, 48, 50, respectively), in the spoiler (23), is groove-shaped and is filled by a body (41) of the at least one retainer.

7. The wiper blade of claim 6, characterized in that in terms of the length of the wiper blade (10), a length of the at least one retainer (60 w and 62) is adapted to a length of the groove-shaped recess (46 and 50, respectively).

8. The wiper blade of claim 7, characterized in that the at least one retainer (236, 238, 240) is provided with a wall (242), which extends longitudinally of the wiper blade (10) and which covers a peripheral region of the spoiler (23), adjacent to the recess, on a back wall on the spoiler, remote from a leading-edge face (44).

9. The wiper blade of claim 8, characterized in that the body (41) of the at least one retainer (136 and 138), on its face end toward a recess wall of the spoiler (23), is provided with a recess (137 and 139, respectively), into which the spoiler (23) plunges with a respective end piece (141 and 142).

10. The wiper blade of claim 1, characterized in that the at least one retainer (36, 38, 40;

136, 138, 140;

236, 238, 240) is made from a plastic.