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AssigneeRobert Bosch GmbH
InventorJoachim Zimmer
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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).
A windshield wiper 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, characterized in that 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).
The system of one of the foregoing claims, characterized in that a plurality of grooves (40), in particular from three to four of them and preferably four of them, are provided for receiving a lubricant.
The system of one of the foregoing claims, characterized in that the accumulation of material (38) is disposed substantially parallel to the wiper shaft (16).
The system of one of the foregoing claims, characterized in that the at least one groove (40) has a minimum spacing (a) in particular of 5 mm to 15 mm, preferably 10 mm, from the bottom and top faces (30, 32) of the hollow-cylindrical segment (24).
A method for producing a windshield wiper system, in particular a windshield wiper system of one of the foregoing claims, having at least one wiper bearing (14), which for supporting a wiper shaft (16) has a substantially hollow-cylindrical segment (24), characterized in that by targeted accumulation of material (38) at the outer surfaces of the hollow-cylindrical segment (24), at least one groove (40) is created on the slide face between the wiper bearing (14) and the wiper shaft (16) by means of shrinkage of material.
Dependencies are inferred from the claim text.