| 摘要 |
PCT No. PCT/DE88/00482 Sec. 371 Date Feb. 9, 1990 Sec. 102(e) Date Feb. 9, 1990 PCT Filed Aug. 5, 1988 PCT Pub. No. WO89/01886 PCT Pub. Date Mar. 9, 1989.A device for wiping a windshield of motor vehicles comprises a wiper blade which brushes over a wiping field located between two oscillating reversing positions and which is securely connected with a rocker shaft via a wiper arm, and which can be placed in a rest position which is located prior to the wiping field as seen in one oscillating direction. The wiper device has a drive comprising an electrical drive motor and a crank operatively connected with the drive motor and forming a part of a pendulum gear unit which transmit the rotating movement of the drive motor into an oscillating movement of the rocker shaft. The crank is additionally supported with a shaft in an eccentric bush rotatable between two positions relative to a device housing in such a way that the axis of rotation of the crank is movable between a pendulum operating position and an additional position effecting the wiper blade rest position. The eccentric bush comprises a separate drive motor adjusting mechanism which is independent of the pendulum drive, so that the wiping movement of the wiper blade can also be effected immediately when the wiper device is switched on. |
