A windshield wiper drive for a motor vehicle, with a reverse-operating driving motor for driving a wiper shaft which is connected in a rotationally fixed manner to a wiper arm, and with a fastening plate for fastening the windshield wiper drive to a vehicle body or to a component mounted on the body
A windshield wiper drive for a motor vehicle, with a reverse-operating driving motor for driving a wiper shaft which is connected in a rotationally fixed manner to a wiper arm, and with a fastening plate for fastening the windshield wiper drive to a vehicle body or to a component mounted on the body, wherein a first end stop surface for limiting the rotational movement of the wiper shaft in a first direction of rotation is provided on the fastening plate and/or on a component fixed to the fastening plate.
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1. A windshield wiper drive (1) for a motor vehicle, with a reverse-operating driving motor (3) for driving a wiper shaft (6) which is connected in a rotationally fixed manner to a wiper arm (18), and with a fastening plate (7) for fastening the windshield wiper drive (1) to a vehicle body, wherein
1. A windshield wiper drive (1) for a motor vehicle, with a reverse-operating driving motor (3) for driving a wiper shaft (6) which is connected in a rotationally fixed manner to a wiper arm (18), and with a fastening plate (7) for fastening the windshield wiper drive (1) to a vehicle body, wherein the wiper shaft passes through a through opening (14) in the fastening plate (7), wherein a first stop surface for limiting rotational movement of the wiper shaft (6) in a first direction of rotation is provided on the fastening plate (7), wherein a second stop surface for limiting the rotational movement of the wiper shaft (6) in a second direction of rotation opposed to the first direction of rotation is provided on the fastening plate (7), wherein one of the wiper arm and the wiper shaft has thereon a third stop surface for interaction with the first stop surface and a fourth stop surface for interaction with the second stop surface, wherein the fastening plate has a guide slot delimited by the first and second stop surfaces, wherein the guide slot extends in a circumferential direction and has one of the stop surfaces at each of two ends spaced apart in the circumferential direction, wherein the wiper arm or the wiper shaft has thereon a projection delimited by the third and fourth stop surfaces, and wherein the projection extends into the guide slot, such that rotational movement of the wiper shaft (6) in the first direction of rotation is limited by engagement of the first and third stop surfaces, and rotational movement of the wiper shaft (6) in the second direction of rotation is limited by engagement of the second and fourth stop surfaces, wherein the driving motor is arranged in a motor housing (2), wherein the driving motor is connected via a gear mechanism (5), which is arranged in a gear mechanism housing (4), to the wiper shaft (6) in a torque-transmitting manner, wherein the fastening plate is fixed to the gear mechanism housing by three fixing screws (9) which pass through respective fixing openings (10) in the fastening plate, and wherein the fixing openings (10) are arranged around an edge of an elevation (11) which has a rising circumferential wall (12) and an upper annular section (13) running substantially at right angles to the circumferential wall, the annular section delimiting the through opening. 2. The wiper drive as claimed in claim 1 wherein the projection is on a component fixed to the wiper shaft. 3. The wiper drive as claimed in claim 1 wherein the projection extends radially. 4. The wiper drive as claimed in claim 1 wherein, to fix the windshield wiper drive (1) to the vehicle body, the fastening plate (7) has therein three fastening openings (8) spaced apart in a circumferential direction, the fastening openings being configured to receive fasteners for fixing the fastening plate to the vehicle body. 5. The wiper drive as claimed in claim 1 wherein the slot is at least partially defined by the annular section (13). 6. A windshield wiper drive (1) for a motor vehicle, with a reverse-operating driving motor (3) for driving a wiper shaft (6) which is connected in a rotationally fixed manner to a wiper arm (18), and with a fastening plate (7) for fastening the windshield wiper drive (1) to a vehicle body, wherein the wiper shaft passes through a through opening (14) in the fastening plate (7), wherein the driving motor is connected via a gear mechanism (5), which is arranged in a gear mechanism housing (4), to the wiper shaft (6) in a torque-transmitting manner, wherein the fastening plate is fixed to the gear mechanism housing by three fixing screws (9) which pass through respective fixing openings (10) in the fastening plate, wherein, to fix the windshield wiper drive (1) to the vehicle body, the fastening plate (7) has therein three fastening openings (8) spaced apart in a circumferential direction, the fastening openings being configured to receive fasteners for fixing the fastening plate to the vehicle body, wherein the fastening plate has a guide slot delimited by a first stop surface for limiting rotational movement of the wiper shaft (6) in a first direction of rotation and by a second stop surface for limiting the rotational movement of the wiper shaft (6) in a second direction of rotation opposed to the first direction of rotation, wherein the guide slot extends in a circumferential direction and has one of the stop surfaces at each of two ends spaced apart in the circumferential direction, wherein one of the wiper arm and the wiper shaft has thereon a radial projection delimited by a third stop surface for interaction with the first stop surface and by a fourth stop surface for interaction with the second stop surface, and wherein the projection extends into the guide slot, such that rotational movement of the wiper shaft (6) in the first direction of rotation is limited by engagement of the first and third stop surfaces, and rotational movement of the wiper shaft (6) in the second direction of rotation is limited by engagement of the second and fourth stop surfaces. 7. The wiper drive as claimed in claim 6 wherein the projection is on a component fixed to the wiper shaft. 8. The wiper drive as claimed in claim 6 wherein the fixing openings (10) are arranged around an edge of an elevation (11) which has a rising circumferential wall (12) and an upper annular section (13) running substantially at right angles to the circumferential wall, the annular section delimiting the through opening. 9. The wiper drive as claimed in claim 8 wherein the slot is at least partially defined by the annular section (13). 10. The wiper drive as claimed in claim 6 wherein the fixing openings (10) are arranged around an edge of an elevation (11) which has a rising circumferential wall (12) and an upper annular section (13) running substantially perpendicular to the wiper shaft, the annular section delimiting the through opening. 11. The wiper drive as claimed in claim 10 wherein the slot is at least partially defined by the annular section (13). 12. A windshield wiper drive (1) for a motor vehicle, with a reverse-operating driving motor (3) for driving a wiper shaft (6) which is connected in a rotationally fixed manner to a wiper arm (18), and with a fastening plate (7) for fastening the windshield wiper drive (1) to a vehicle body, wherein the wiper shaft passes through a through opening (14) in the fastening plate (7), wherein a first stop surface for limiting rotational movement of the wiper shaft (6) in a first direction of rotation is provided on the fastening plate (7), wherein a second stop surface for limiting the rotational movement of the wiper shaft (6) in a second direction of rotation opposed to the first direction of rotation is provided on the fastening plate (7), wherein one of the wiper arm and the wiper shaft has thereon a third stop surface for interaction with the first stop surface and a fourth stop surface for interaction with the second stop surface, wherein the fastening plate has a guide slot delimited by the first and second stop surfaces, wherein the guide slot extends in a circumferential direction and has one of the stop surfaces at each of two ends spaced apart in the circumferential direction, wherein the wiper arm or the wiper shaft has thereon a projection delimited by the third and fourth stop surfaces, and wherein the projection extends into the guide slot, such that rotational movement of the wiper shaft (6) in the first direction of rotation is limited by engagement of the first and third stop surfaces, and rotational movement of the wiper shaft (6) in the second direction of rotation is limited by engagement of the second and fourth stop surfaces, wherein the driving motor is arranged in a motor housing (2), wherein the driving motor is connected via a gear mechanism (5), which is arranged in a gear mechanism housing (4), to the wiper shaft (6) in a torque-transmitting manner, wherein the fastening plate is fixed to the gear mechanism housing by three fixing screws (9) which pass through respective fixing openings (10) in the fastening plate, and wherein the fixing openings (10) are arranged around an edge of an elevation (11) which has a rising circumferential wall (12) and an upper annular section (13) running substantially perpendicular to the wiper shaft, the annular section delimiting the through opening. 13. The wiper drive as claimed in claim 12 wherein the projection is on a component fixed to the wiper shaft. 14. The wiper drive as claimed in claim 12 wherein the projection extends radially. 15. The wiper drive as claimed in claim 12 wherein, to fix the windshield wiper drive (1) to the vehicle body, the fastening plate (7) has therein three fastening openings (8) spaced apart in a circumferential direction, the fastening openings being configured to receive fasteners for fixing the fastening plate to the vehicle body. 16. The wiper drive as claimed in claim 12 wherein the slot is at least partially defined by the annular section (13).
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이 특허에 인용된 특허 (4)
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