Windscreen wiper comprising a wiper arm

• US 6,789,289 B2
• Filed: 08/28/2003
• Issued: 09/14/2004
• Est. Priority Date: 12/19/2001
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Roodt, Inigo Opʼt
• Primary Examiner(s): Graham, Gary K.
• Application Number:
  US10/469,406
• Publication Number:
  US 20040093681A1
• Time in Patent Office: 383 Days
• Field of Search: 152/503.2, 152/504.4, 152/503.51, 152/503.61, 152/504.3, 152/503.1
• US Class Current: 15/250.32
• CPC Class Codes: B60S 1/40 Connections between blades and arms
• CPC Class Codes: B60S 1/4003 Multi-purpose connections for two or more kinds of arm ends
• CPC Class Codes: B60S 1/407 with means provided on the arm for locking the side pin
• CPC Class Codes: B60S 1/4077 characterised by the connecting part of, or an intermediate element mounted on, the wiper blade means for locking the side pin B60S1/4074
• CPC Class Codes: B60S 2001/408 the connecting part or the intermediate element being provided with holes for different diameters of pivoting pin

Abstract

The invention starts with a windshield wiper with a wiper arm (10) on whose free end a pin (22) is fastened laterally, transverse to the longitudinal direction (64) and pointing to a wiper blade (24) for the articulated connection of the wiper blade (24), which pin is inserted into a passage opening of the wiper blade (24) and in an assembled position is locked axially via a bridge (12) that is arranged parallel to the pin (22) on the wiper arm (10) and grips over the wiper blade (24) with a bent end (14). It is proposed that the wiper blade (24) feature a supporting bracket system with a center bracket (26) that has an inset box (28), whose side walls (30) are connected to one another via an articulated bolt (32) and always feature at least one passage (34) offset in the longitudinal direction (64) to the articulated bolt (32), that a plastic adapter (38) with a block-shaped center part (54) be inserted from above into the inset box (28), which center part is adjacent with lateral guide surfaces (56) to the insides of the side walls (30) and from whose covering wall (40) collars (42) project laterally beyond the side walls (30) forming guide surfaces (44) in the area of the bridge (12) to which a bearing surface (20) of the wiper arm (10) and the bent end (14) of the bridge (12) are adjacent in an assembled state, and that the collars (42) form bearing eyes (46) in the area of at least two opposing passages (34), which bearing eyes are arranged externally on the inset box (28) and are separated by slots (48) from the center part (54), which features a rest bore hole (50) matching the bearing eyes (46), whereby in an assembled state the adapter (38) is held on the articulated bolt (32) via a clip (58) in the center part (54) by means of locking noses (60).

Claims

1. Windshield wiper with a wiper arm (10) on whose free end a pin (22) is fastened laterally, transverse to the longitudinal direction (64) and pointing to a wiper blade (24) for the articulated connection of the wiper blade (24), which pin is inserted into a passage opening of the wiper blade (24) and in an assembled position is locked axially via a bridge (12) that is arranged parallel to the pin (22) on the wiper arm (10) and grips over the wiper blade (24) with a bent end (14), characterized in that the wiper blade (24) features a supporting bracket system with a center bracket (26) that has an inset box (28), whose side walls (30) are connected to one another via an articulated bolt (32) and always feature at least one passage (34) offset in the longitudinal direction (64) to the articulated bolt (32), in that a plastic adapter (38) with a block-shaped center part (54) is inserted from above into the inset box (28), which center part is adjacent with lateral guide surfaces (56) to the insides of the side walls (30) and from whose covering wall (40) collars (42) project laterally beyond the side walls (30) forming guide surfaces (44) in the area of the bridge (12) to which a bearing surface (20) of the wiper arm (10) and the bent end (14) of the bridge (12) are adjacent in an assembled state, and in that the collars (42) form bearing eyes (46) in the area of at least two opposing passages (34), which bearing eyes are arranged externally on the inset box (28) and are separated by slots (48) from the center part (54), which features a rest bore hole (50) matching the bearing eyes (46), whereby in an assembled state the adapter (38) is held on the articulated bolt (32) via a clip (58) in the center part (54) by means of locking noses (60).

2. Windshield wiper according to claim 1, characterized in that the covering wall (40) of the adapter (38) features a depression (62) that runs crosswise in the area of the bridge (12) whose depth is adapted to the material strength of the bridge (12).

3. Windshield wiper according to claim 1, characterized in that the passages (34) have outward pointing edges (36) and the bearing eyes (46) have corresponding recesses (52) on their insides.

4. Windshield wiper according to claim 1, characterized in that the bearing eyes (46), the rest bore hole (50) and the pin (22) are coordinated in terms of their diameters and their positions to the passages (34) and the clip (58) in such a way that when the windshield wiper is in operation there is no contact between the pin (22) and the wiper blade (24).