Wiper lever with a driven wiper arm and a wiper blade

• US 7,941,891 B2
• Filed: 03/23/2009
• Issued: 05/17/2011
• Est. Priority Date: 11/18/2000
• Status: Expired due to Term

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Breesch, Frans
• Primary Examiner(s): Graham; Gary K
• Application Number:
  US12/408,915
• Publication Number:
  US 20090172909A1
• Time in Patent Office: 785 Days
• Field of Search: 152/503.2, 152/504.3, 152/504.4, 152/502.01, 152/504.8, 152/504.51, 152/504.52, 152/504.53, 152/504.54, 152/503.61
• 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 1/3856 Gripping the blade
• CPC Class Codes: B60S 1/3863 Connectors having a spoiler
• CPC Class Codes: B60S 1/3868 pin formed on the exterior of side walls
• CPC Class Codes: B60S 1/3879 placed in side grooves in the squeegee
• CPC Class Codes: B60S 1/40 Connections between blades and arms
• 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 2001/382 the backing strip being an essentially planar reinforcing strip, e.g. vertebra
• CPC Class Codes: B60S 2001/3843 equipped with removable cover or protective elements
• CPC Class Codes: B60S 2001/4061 covered by a removable cover mounted on the blade

Abstract

Wiper lever (10) with a driven wiper arm (12) and a wiper blade (16) linked to it for cleaning windows, particularly those of motor vehicles, which is provided with a band-like, long-stretched-out, elastic supporting element (30), which features, on its lower band surface facing the window, a long-stretched-out, rubber elastic wiper strip (24) that can be applied to it, on whose upper band surface (29), particularly in the longitudinal middle area of the supporting element (30), a coupling part (32) is situated and wind deflector strip partial sections (52) extending to the ends of the supporting element are arranged on both sides of the coupling part (32). An especially harmonic transition between the wiper blade (16) and the wiper arm (12) is achieved in the area of the joint (46, 47) connecting these two wiper lever parts if the wiper lever (10) is provided with a cap (60) to cover the connection area between the wiper blade (16) and the wiper arm (12).

Claims

1. A wiper blade (16) for cleaning windows of motor vehicles, the wiper blade being provided with an elastic supporting element (30) which is constructed as an elongated band and, on a lower band surface (31) facing a window (28), has an elongated, rubber elastic wiper strip (24) which can be placed against the window, and, on an upper band surface (29), proximate a longitudinal middle area of the supporting element, there is a coupling part (32) for connecting the wiper blade (16) to a wiper arm (12), and the wiper blade (16) is provided with a cap (60, 160) to cover the connection area between the wiper blade (16) and the wiper arm (12), wherein the covering cap (60), which is approximately U-shaped in cross-section, is fabricated of an elastic plastic and is provided with elastically deflectable locking means (74), which are assigned to counter-locking means (40) of the wiper blade, characterized in that the covering cap (60) has a trough-shaped central section (62) with a largely removed trough bottom, resulting in a U-shaped passage opening (64) for passage of a free end (14) of the wiper arm (12), and the locking means (74) are integrally formed on longitudinal walls (72) of the covering cap (60, 160) and the longitudinal walls (72) deflect elastically during locking.

2. The wiper blade as claimed in claim 1, characterized in that the locking means (74) have run-on slopes (88).

3. The wiper blade as claimed in claim 1, characterized in that supporting or stiffening walls (76) are arranged on each longitudinal wall (72).

4. The wiper blade as claimed in claim 3, characterized in that the supporting or stiffening walls (76) are arranged between the locking means (74).

5. The wiper blade as claimed in claim 1, characterized in that the covering cap (60) is provided with at least one support (82) cooperating with the upper band surface (29) of the supporting element, and in that elastically deflectable locking noses (74) that grip under the supporting element (30) and serve as locking means are formed on the covering cap (60).

6. The wiper blade as claimed in claim 1, characterized in that the counter-locking means of the wiper blade (16) are embodied on holding claws (38) of the coupling part (32), with which the coupling part is fixed to the supporting element (30).

7. The wiper blade as claimed in claim 6, characterized in that, in the area of the holding claws (38) of the coupling part (32), the covering cap (100) is provided, on its elastically deflectable inside wall, with clamp-like safety claws (102) that grip over the holding claws (38).

8. The wiper blade as claimed in claim 1, characterized in that in deflector strip partial sections (52) extending to the ends of the supporting element are arranged on both sides of the coupling part, and in that, on its longitudinal ends, the covering cap (60) covers the end areas of the wind deflector strip partial sections (52) that face it with extensions (70).

9. The wiper blade as claimed in claim 1, characterized in that the covering cap (60) is provided with a flute (94) on its one longitudinal wall (72) in continuation of flow fluting (58) on a wind deflector strip (50).

10. A wiper blade (16) for cleaning windows of motor vehicles, the wiper blade being provided with an elastic supporting element (30) which is constructed as an elongated band and, on a lower band surface (31) facing a window (28), has an elongated, rubber elastic wiper strip (24) which can be placed against the window, and, on an upper band surface (29), proximate a longitudinal middle area of the supporting element, there is a coupling part (32) for connecting the wiper blade (16) to a wiper arm (12), and the wiper blade (16) is provided with a cap (60, 160) to cover the connection area between the wiper blade (16) and the wiper arm (12), wherein the covering cap (60), which is approximately U-shaped in cross-section, is fabricated of an elastic plastic and is provided with elastically deflectable locking means (74), which are assigned to counter-locking means (40) of the wiper blade, characterized in that the covering cap (60) has a trough-shaped central section (62) with a largely removed trough bottom, resulting in a passage opening (64) for passage of a free end (14) of the wiper arm (12), and the locking means (74) are integrally formed on longitudinal walls (72) of the covering cap (60, 160) and the longitudinal walls (72) deflect elastically during locking;

characterized in that the counter-locking means of the wiper blade (16) are embodied on the outer longitudinal edges (40) of the supporting element (30).

11. A windshield wiper apparatus comprising a wiper blade (16) for cleaning a motor vehicle window (28), the wiper blade including an elongated, elastic supporting element (30) constructed as a band having a longitudinal middle area, a coupling part on the longitudinal middle area, the coupling part to connect the wiper blade to a wiper arm (12), a lower band surface (31) having thereon a elongated, rubber elastic wiper strip (24), wind deflector strip partial sections (52) extending to the ends of the supporting element and arranged on both sides of the coupling part, a cap (60 or 160) to cover the coupling part, the cap having cap sections that cover adjacent areas of the wind deflector strip partial sections (52), the cap sections having a shape complementary to the shape of the wind deflector strip.