Wiper blade, in particular for a motor vehicle

Patent metadata

Field	Value
Publication number	US-12157439-B2
Application number	US-202218078141-A
Country	US
Kind code	B2
Filing date	Dec 9, 2022
Priority date	Dec 10, 2021
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

A wiper blade ( 10 ), in particular for a motor vehicle, is proposed with a wiping strip ( 16 ) mounted between a first spring bar portion ( 34 ) and a second spring bar portion ( 36 ) by a fastening portion ( 24 ) and having a substantially triangular lip portion ( 18 ). According to the invention, between the fastening portion ( 24 ) and the lip portion ( 18 ), a cavity portion ( 22 ) is provided, on which dampening means ( 52 ) are provided, in particular fastened thereto or formed in one piece therewith.

First claim

What is claimed is:

1. A wiper blade ( 10 ), having a wiping strip ( 16 ) which is mounted between a first spring bar portion ( 34 ) and a second spring bar portion ( 36 ) by a fastening portion ( 24 ) and comprises a substantially triangular lip portion ( 18 ), wherein a cavity portion ( 22 ) is provided between the fastening portion ( 24 ) and the lip portion ( 18 ), wherein a pair of dampening means ( 52 ) are arranged on a dampening portion ( 50 ) between the cavity portion ( 22 ) and the fastening portion ( 24 ), wherein each of the dampening means ( 52 ) is a wing or flap extending, with a free end, from an upper wall ( 42 ) of the cavity portion ( 22 ), wherein the upper wall ( 42 ) of the cavity portion ( 22 ) also includes shoulders ( 54 ), wherein the wings or flaps include a first wing or flap positioned above and spaced from a first one of the shoulders ( 54 ), and a second wing or flap positioned above and space from a second one of the shoulders ( 54 ), wherein each of the wings or flaps thickens moving toward the free end, wherein the fastening portion ( 24 ) includes an upper bar ( 26 ) in a transverse direction with respect to an axis of symmetry S of the wiper strip, wherein the cavity portion ( 22 ) has an outer width that is greater than a width of the upper bar ( 26 ), wherein the first wing or flap is separated from the first one of the shoulders ( 54 ) by a first groove and the second wing or flap is separated from the second one of the shoulders ( 54 ) by a second groove, and wherein a distance between bottoms of the first groove and the second groove is greater than the width of the upper bar ( 26 ) in the transverse direction.

2. The wiper blade ( 10 ) according to claim 1 , wherein the cavity portion ( 22 ) is fastened to the dampening means ( 52 ).

3. The wiper blade ( 10 ) according to claim 1 , wherein the cavity portion ( 22 ) is formed in one piece with the dampening means ( 52 ).

4. The wiper blade ( 10 ) according to claim 1 , wherein the dampening means ( 52 ) mounts the first spring bar portion ( 34 ) and the second spring bar portion ( 36 ) vertically, without play between the cavity portion ( 22 ) and the fastening portion ( 24 ).

5. The wiper blade ( 10 ) according to claim 1 , wherein on its side facing the lip portion ( 18 ), the cavity portion ( 22 ) is substantially wider than the lip portion ( 18 ).

6. The wiper blade ( 10 ) according to claim 1 , wherein the cavity portion ( 22 ) is substantially rectangular in cross-section.

7. The wiper blade ( 10 ) according to claim 1 , wherein the fastening portion ( 24 ) is substantially T-shaped.

8. The wiper blade ( 10 ) according to claim 1 , wherein the first and/or the second spring bar portion ( 34 , 36 ) is/are arranged between the cavity portion ( 22 ) and the upper bar ( 26 ) of the fastening portion ( 24 ).

9. The wiper blade ( 10 ) according to claim 1 , wherein the lip portion ( 18 ) is mirror-symmetrically formed in cross-section and has exactly two incisions ( 38 ) on each side.

10. The wiper blade ( 10 ) according to claim 9 , wherein at least one further tilt bar ( 40 ) is formed by the incisions ( 38 ).

11. The wiper blade ( 10 ) according to claim 10 , wherein exactly two further tilt bars ( 40 ) are formed by the incisions ( 38 ).

12. The wiper blade ( 10 ) according to claim 11 , wherein a first tilt bar ( 30 ) has a first width (B 1 ) and at least one of the two further tilt bars ( 40 ) has a second width (B 2 ), and the second width (B 2 ) is equal to or smaller than the first width (B 1 ).

13. The wiper blade ( 10 ) according to claim 12 , wherein each of the two further tilt bars ( 40 ) has the second width (B 2 ).

14. The wiper blade ( 10 ) according to claim 1 , wherein the lip portion ( 18 ) has incisions ( 38 ), wherein the incisions ( 38 ) each have a cut width (SB) of less than 1 millimeter.

15. The wiper blade ( 10 ) according to claim 14 , wherein the incisions ( 38 ) each have a cut width (SB) of less than 0.5 millimeter.

16. The wiper blade ( 10 ) according to claim 1 , wherein the wiper blade is a motor vehicle wiper blade ( 10 ).

17. The wiper blade ( 10 ) according to claim 1 , wherein a distance between the first one of the shoulders ( 54 ) and the second one of the shoulders ( 54 ) is greater than the width of the upper bar ( 26 ).

18. The wiper blade ( 10 ) according to claim 1 , wherein the first groove is a tapering channel which narrows moving inwardly toward the axis of symmetry S of the wiping strip ( 16 ).

19. The wiper blade ( 10 ) according to claim 1 , wherein the cavity portion ( 22 ) defines an inner cavity having a width that is also greater than the width of the upper bar ( 26 ).

Assignees

• Bosch Gmbh Robert

Inventors

• Angyal Adam
• Wilms Christian
• Ekermans Marcel
• Bubba Marcello
• Gotzen Nicolaas
• Kuypers Peter
• Belmans Thomas
• Buseyne Wim

Classifications

• B60S2001/3827

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

• B60S2001/3836

  characterised by cross-sectional shape · CPC title

• B60S1/38 Primary

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

• B60S1/3875

  rectangular section · CPC title

• B60S1/3879 Primary

  placed in side grooves in the squeegee · CPC title