Wiper frame

Patent metadata

Field	Value
Publication number	US-11400893-B2
Application number	US-201816764230-A
Country	US
Kind code	B2
Filing date	Oct 17, 2018
Priority date	Nov 15, 2017
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

Disclosed is a wiper frame (10) comprising a resilient support rail (22) and a wiper blade (12) which is attached to the support rail (22). According to the invention, the wiper blade (12) has a wiper blade lip (44) having a substantially rigid cross-sectional structure, and the wiper blade lip (44) is mounted between a first bending region (32) and a second bending region (34) in a cross-sectional view.

First claim

What is claimed is:

1. A wiper frame ( 10 ) comprising a resilient support rail ( 22 ) and a wiper blade ( 12 ) which is attached to the support rail ( 22 ), characterized in that the wiper blade ( 12 ) has a wiper blade lip ( 44 ) having a substantially rigid cross-sectional structure and the wiper blade lip ( 44 ) is mounted between an elongated first bending region ( 32 ) and a second bending region ( 34 ) in a cross-sectional view,
wherein the first bending region ( 32 ) extends from the resilient support rail ( 22 ) to a first support shoulder ( 46 ) at a free terminal end of the first bending region, the first support shoulder ( 46 ) defining a transition to a first resilient region ( 38 ) having a cross-sectional thickness that is at most half of a cross-sectional thickness of the first bending region ( 32 ),
wherein the first support shoulder ( 46 ) is configured to engage the wiper blade lip ( 44 ) when the wiper blade lip ( 44 ) rotates or tilts as a result of moving in a wiping motion,
wherein the first bending region ( 32 ), the second bending region ( 34 ), the first resilient region ( 38 ), and the wiper blade lip ( 44 ) all intersect a same plane that extends parallel to the resilient support rail ( 22 ),
wherein a width of the first resilient region ( 38 ) is defined as a distance the first resilient region ( 38 ) extends between the wiper blade lip ( 44 ) and the free terminal end of the first bending region ( 32 ), and
wherein the width of the first resilient region ( 38 ) is between 0.05 mm and 0.8 mm.

2. The wiper frame ( 10 ) as claimed in claim 1 , characterized in that a first attachment region ( 28 ), which adjoins at least the first bending region ( 32 ), is provided for attaching the wiper blade lip ( 44 ) to the support rail ( 22 ).

3. The wiper frame ( 10 ) as claimed in claim 2 , characterized in that a second attachment region ( 30 ), which adjoins the second bending region ( 34 ) and which is provided for attaching the wiper blade lip ( 44 ) to the support rail ( 22 ), is provided.

4. The wiper frame ( 10 ) as claimed in claim 3 , characterized in that the second bending region ( 34 ) comprises at least one second support shoulder ( 48 ) for supporting the wiper blade lip ( 44 ).

5. The wiper frame ( 10 ) as claimed in claim 3 , characterized in that the support rail ( 22 ) is configured as a spring rail which has a planar cross section and which has longitudinal edges ( 52 , 56 ) and the first attachment region ( 28 ) and/or the second attachment region ( 30 ) encompasses the longitudinal edges ( 52 , 56 ).

6. The wiper frame ( 10 ) as claimed in claim 2 , characterized in that the support rail ( 22 ) is divided into two in the longitudinal direction, into a first rail part ( 24 ) and a second rail part ( 26 ), and the first attachment region ( 28 ) mounts the wiper blade ( 12 ) between the first rail part ( 24 ) and the second rail part ( 26 ).

7. The wiper frame ( 10 ) as claimed in claim 1 , characterized in that the wiper blade lip ( 44 ) has a substantially triangular outer contour in cross section.

8. The wiper frame ( 10 ) as claimed in claim 1 , characterized in that the first bending region ( 32 ) has a first stabilizing region ( 36 ).

9. The wiper frame ( 10 ) as claimed in claim 8 , characterized in that the second bending region ( 34 ) has a second stabilizing region ( 40 ) and a second resilient region ( 42 ).

10. The wiper frame ( 10 ) as claimed in claim 9 , characterized in that the second resilient region ( 42 ) directly adjoins the wiper blade lip ( 44 ).

11. The wiper frame ( 10 ) as claimed in claim 9 , characterized in that a second support shoulder ( 48 ) is provided on the second stabilizing region ( 40 ) of the second bending region ( 34 ).

12. The wiper frame ( 10 ) as claimed in claim 9 , characterized in that the second resilient region ( 42 ) also intersects the plane.

13. The wiper frame ( 10 ) as claimed in claim 9 , characterized in that a width of the second resilient region ( 42 ) is defined as a distance the second resilient region ( 42 ) extends between the wiper blade lip ( 44 ) and the second bending region ( 34 ), and
wherein the width of the second resilient region ( 42 ) is between 0.05 mm and 0.8 mm.

14. The wiper frame ( 10 ) as claimed in claim 13 , characterized in that the width of the first and the second resilient regions ( 38 , 42 ) is between 0.1 mm and 0.6 mm.

15. The wiper frame ( 10 ) as claimed in claim 14 , characterized in that the width of the first and the second resilient regions ( 38 , 42 ) is 0.35 mm.

16. The wiper frame ( 10 ) as claimed in claim 8 , characterized in that the first support shoulder ( 46 ) is provided on the first stabilizing region ( 36 ) of the first bending region ( 32 ).

17. The wiper frame ( 10 ) as claimed in claim 1 , characterized in that the first resilient region ( 38 ) directly adjoins the wiper blade lip ( 44 ).

Assignees

• Bosch Gmbh Robert

Inventors

• Angyal Adam
• Belmans Thomas
• Bubba Marcello
• Deak Peter

Classifications

• B60S1/38 Primary

  Wiper blades {(provided with liquid spreading means B60S1/524; provided with gas spreading means B60S1/546)} · CPC title

• B60S2001/3827

  characterised by the squeegee or blade rubber or wiping element · CPC title

• B60S1/3877

  embedded in the squeegee · CPC title

• B60S1/3879

  placed in side grooves in the squeegee · CPC title

• B60S2001/3836

  characterised by cross-sectional shape · CPC title