Wiper strip for windshield wipers

• US 6,813,803 B2
• Filed: 03/20/2002
• Issued: 11/09/2004
• Est. Priority Date: 05/10/2000
• Status: Active Grant

• Current Assignee: Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Leutsch, Wolfgang
• Primary Examiner(s): Jones, Deborah
• Assistant Examiner(s): Bahta, Abraham
• Application Number:
  US10/030,284
• Publication Number:
  US 20030005540A1
• Time in Patent Office: 965 Days
• Field of Search: 152/504.8, 152/504.51, 152/504.3, 152/504.4, 152/500.6, 152/504, 152/45
• US Class Current: 15/250.48
• 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 1/3867 pin formed on the interior of side walls
• CPC Class Codes: B60S 2001/3836 characterised by cross-sectional shape

Abstract

A wiper strip (18) for windshield wipers includes a profile spine (20) and a function part (22) that is connected to the profile spine (20) via a tilting bridge piece (26) and that bears against it in the tilted position. The functional part (22) includes a supporting section (30) that is connected to the profile spine (20) via the first tilting bridge piece (26) and to a wiper wedge (32) via a second tilting bridge piece (28).

Claims

1. A wiper strip (18) for windshield wipers, comprising:

a profile spine (20) and a functional part (22) that is connected to the profile spine (20) via a tilting bridge piece (26) and that bears against it in the tilted position, wherein the functional part (22) includes a supporting section (30) that is connected to the profile spine (20) via the first tilting bridge piece (26) and to a wiper wedge (32) via a second tilting bridge piece (28), wherein the profile spine (20) has a total width of 6 to 10 mm and a total height of 3.5 to 7 mm, wherein grooves (38) for accommodating springs (24) are provided on the opposing longitudinal sides, wherein the thickness of the springs (24) is between 0.7 and 1.2 mm and the width of each spring (24) is between 2.5 and 4.5 mm, wherein the profile spine (20) is limited at the top by means of a cover strip (38) that is 0.5 to 2 mm high, wherein further opposing longitudinal grooves (42) abut the longitudinal grooves (38) in the direction facing the functional part (22), wherein intermediate walls (40) between the longitudinal grooves (38) and (42) have a thickness of 0.6 to 1 mm, and wherein covers strips (44) between the longitudinal grooves (42) and the functional part (22) have a thickness of 0.5 to 1 mm.

2. The wiper strip (18) according to claim 1, wherein the first tilting bridge piece (26) and the second tilting bridge piece (28) are coordinated with each other in such a fashion that, when the functional part (22) tilts, the first tilting bridge piece (26) folds completely over at first, and the supporting section (30) bears against the profile spine (20), while the second tilting bridge piece (28) then folds over and the wiper wedge (32) of the functional part (22) bears against the supporting section (30) with one shoulder (50).

3. A wiper strip (18) for windshield wipers, comprising:

a profile spine (20) and a functional part (22) that is connected to the profile spine (20) via a tilting bridge piece (26) and that bears against it in the tilted position, wherein the functional part (22) includes a supporting section (30) that is connected to the profile spine (20) via the first tilting bridge piece (26) and to a wiper wedge (32) via a second tilting bridge piece (28), wherein the functional part (22), including the supporting section (30), has its greatest width of preferably 4 to 8 mm on the side facing the first tilting bridge piece (26), wherein the width of the supporting section (30), a wiper wedge (32), and the wiper lip (34) decreases continuously toward the exposed end of the wiper lip (34) to a value of 0.5 to 1 mm.

4. The wiper strip (18) according to claim 3, wherein the functional part (22), including the supporting section (30), has a total height of 4 to 7 mm.

5. A wiper strip (18) for windshield wipers, comprising:

a profile spine (20) and a functional part (22) that is connected to the profile spine (20) via a tilting bridge piece (26) and that bears against it in the tilted position, wherein the functional part (22) includes a supporting section (30) that is connected to the profile spine (20) via the first tilting bridge piece (26) and to a wiper wedge (32) via a second tilting bridge piece (28), wherein the second tilting bridge piece (28) is formed by two opposing open spaces (52) extending in the longitudinal direction of the wiper strip (18) that are 0.3 to 0.8 mm high and are situated 0.8 to 1.5 mm away from the upper edge of the supporting section (30), wherein a distance of 0.4 to 1 mm remains between the open spaces (52) in the middle of the functional part (22) for the second tilting bridge piece (28), and wherein the height of the second tilting bridge piece (28) corresponds to the height of the open spaces (52).

6. The wiper strip (18) according to claim 5, wherein the open spaces (52) expand in the region of the second tilting bridge piece (28) toward the supporting section (30) by means of an undercut (58) that increases the height of the open spaces (52) by 0.2 to 0.4 mm.

7. A wiper strip (18) for windshield wipers, comprising:

a profile spine (20) and a functional part (22) that is connected to the profile spine (20) via a tilting bridge piece (26) and that bears against it in the tilted position, wherein the functional part (22) includes a supporting section (30) that is connected to the profile spine (20) via the first tilting bridge piece (26) and to a wiper wedge (32) via a second tilting bridge piece (28), wherein the first tilting bridge piece (26) is formed by two opposing open spaces (46) extending in the longitudinal direction of the wiper strip (18) and has a width of 0.5 to 1 mm and a height of 0.6 to 1.4 mm, wherein the open spaces (46) have a height of 0.4 to 0.8 mm and expand in the region of the first tilting bridge piece (26) toward the profile spine (20) by means of undercuts (48).

8. The wiper strip (18) according to claim 7, wherein the profile spine (20) is secured to an unarticulated carrier (62) by means of a cover strip (60).