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US 7,000,283 B2Granted
Wiper drive
AssigneeRobert Bosch GmbH
InventorJuergen Rapp
Life of this patent
Estimating the term…
Abstract
The invention is based on a wiper drive having a reversible geared motor, which is secured to a wiper mounting and on whose power takeoff shaft (12) a motor crank (14) is seated that is connected via at least one joint (16) to a lever gear which drives at least one windshield wiper. It is provided that either the motor crank (14) on the power takeoff shaft (12) of the geared motor, or a drive element (28) drivingly connected to the motor crank (14), cooperates with stops (18, 20, 32, 34) that prevent an overswing past the turning points of the windshield wiper.
Claims2
A reversible wiper drive, comprising:
- an electric motor with a gear unit, which is secured to a wiper mounting and on whose power takeoff shaft (12) a motor crank (14) is seated, wherein the motor crank drives at least one windshield wiper via at least one joint (16), wherein the electric motor is a reversible motor with a control unit, wherein stops are provided in an area of the motor crank (14) on the wiper mounting (10), wherein the stops are spaced apart from one another by a rotational angle (φ) that is slightly larger than the pivot angle of the motor crank (14), so that the motor crank (14) cooperates with the stops (18, 20, 20a) only with a defect in the control unit of the electric motor.
Dependencies are inferred from the claim text.