Windshield wiper, especially for motor vehicles and method for production of said windshield wiper

• US 6,883,966 B2
• Filed: 12/15/2001
• Issued: 04/26/2005
• Est. Priority Date: 03/22/2001
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Zimmer, Joachim
• Primary Examiner(s): Footland, Lenard A.
• Application Number:
  US10/221,610
• Publication Number:
  US 20030077013A1
• Time in Patent Office: 1,228 Days
• Field of Search: 384/372, 384/373, 384/376, 384/908, 384/909, 384/397, 384/415, 384/114, 384/398
• US Class Current: 384/372
• CPC Class Codes: B60S 1/0425 characterised by the attachment of the wiper shaft holders to the transverse element
• CPC Class Codes: B60S 1/043 Attachment of the wiper assembly to the vehicle
• CPC Class Codes: B60S 1/0433 Attachement of a wiper modular assembly to the vehicle

Abstract

A windshield wiper system, and a method for producing such a system, in particular for a motor vehicle, having at least one wiper bearing (14) substantially comprising an injection-moldable material, in particular plastic, in which a wiper shaft (16) is supported at least in such a way that it can swing back and forth, and in the region of the wiper shaft (16), the wiper bearing (14) has a substantially hollow-cylindrical segment (24) on whose inner surface (34) at least one groove (40) is provided; at least one, in particular riblike, accumulation of material (38) is provided on the outer surfaces of the hollow-cylindrical segment (24), which accumulation is disposed in the radially outward direction of the groove (40) relative to the axis of rotation of the wiper shaft (16).

Claims

1. A windshield wiper system for a motor vehicle, having at least one one-piece wiper bearing (14) substantially comprising an injection-moldable material, that is plastic, in which a wiper shaft (16) is supported at least in such a way that it can swing back and forth, and in the region of the wiper shaft (16), the wiper bearing (14) has a substantially hollow-cylindrical segment (24) on whose inner surface (34) at least one groove (40) is provided, wherein at least one riblike accumulation of material (38) is provided on the outer surfaces of the hollow-cylindrical segment (24), which accumulation is disposed in the radially outward direction of the groove (40) relative to the axis of rotation of the wiper shaft (16), circumferentially tracking and corresponding to the course of the at least one groove.

2. The system of claim 1, wherein a plurality of grooves (40), in particular from three to four of them are provided for receiving a lubricant.

3. The system of claim 2, wherein the plurality of grooves (40) include four grooves.

4. The system of claim 2, wherein the at least one groove (40) has a minimum spacing (a) of 10 mm from the bottom and top faces (30, 32) of the hollow-cylindrical segment (24).

5. The system of claim 1, wherein the accumulation of material (38) is embodied as substantially block-shaped.

6. The system of claim 1, wherein the accumulation of material (38) is embodied substantially semicylindrically.

7. The system of claim 1, wherein the accumulation of material (38) is disposed substantially parallel to the wiper shaft (16).

8. The system of claim 1, wherein the accumulation of material (38) is disposed substantially flatly.

9. The system of claim 1, wherein the at least one groove (40) has a minimum spacing (a) of 5 mm to 15 mm from the bottom and top faces (30, 32) of the hollow-cylindrical segment (24).

10. The system of claim 1, wherein the hollow-cylindrical segment has bottom (30) and top (32) faces, and in regions of the bottom and top faces (30, 32) there are no accumulations of material (38) provided on the outer surfaces of the hollow-cylindrical segment (24) so that no grooves (40) are created in these regions.