Wiper device for motor vehicle wind-shield glass

Abstract

The invention relates to a wiper device (10) for motor vehicle windows (20) comprising a wiper arm (12) which can move between return positions and which is loaded toward the window. A longitudinally extended wiper blade (16), which can pivot around an axis (32) that points in a direction of wiping, is coupled to the free end of said wiper arm and can be moved, in a manner that is transversal to the direction of wiping, together with the wiper arm (12) out of its operational position and into a mounting position. The wiper device has two bearing journals (72). Said bearing journals belong to the pivotal joint, project from the longitudinal sides of the wiper blade (16), are aligned with one another, have non-circular cross-sections, and are guided in recesses (54) of the wiper arm (12) which are open at the edges. In addition, the wiper device is provided with means for limiting the pivotal movement (double arrow 34). It is possible to universally use means for limiting the pivotal movement if the wiper blade (16) is provided with a tongue-like projection (78) which extends at least approximately in the direction of pivot (double arrow 34) and which can be elastically guided outward. A stop shoulder (84) is placed on the free end of said projection and, when the wiper blade is mounted, engages behind a counter shoulder (94), which is provided on the wiper arm, in such a manner that the stop shoulder (84) and counter shoulder (94) form the limiting means.

Description

technical field [0001] The invention relates to a windshield wiper device for automobiles. Background technique [0002] In a wiper device, the necessary pivoting in a direction perpendicular to the wiping direction should be limited so that, in a defined assembly position, if the wiper blade is lifted from the windshield together with the wiper arm, such damage is prevented. Situation, that is, the wiper blade moves around the pivot axis during improper operation so that its bearing neck automatically passes through the opening of the bearing groove, so that the wiper blade can undesirably fall off the wiper arm and fall down, and for example Damage the car's paintwork. [0003] In a known wiper device of this type (DE-AS 19 05 352), the free end of the wiper arm protrudes between mutually spaced walls of a support frame belonging to the wiper blade, from which Protrusion-type support projections protrude in opposite directions from their opposite inner sides. These proj...

AI Technical Summary

Problems solved by technology

[0002] In a wiper device, the necessary pivoting in a direction perpendicular to the wiping direction should be limited so that, in a defined assembly position, if the wiper blade is lifted from the windshield together with the wiper arm, such damage is prevented. Situation, that is, the wiper blade moves around the pivot axis during improper operation so that its bearing neck automatically passes through the opening of the bearing groove, so that the wiper blade can undesirably fall off the wiper arm and fall down, and for example Damaged car paint

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