Abstract:
A driving unit for driving a motor-driven device in a private car, for example a window lifter, a windshield wiper or the like, has a disk armature motor (40) as driving motor and a planetary gear (35) as transmission. The disk armature motor (40) and the planetary gear (35) have the same axis (3) and are assembled into a driving unit that lies in the axis (3).
Abstract:
Where the drive is for a windscreen wiper in a motor vehicle, its wiper arm has a pivotably located first wiper arm part and a second wiper arm part pivotably located in the first part. At the free end of the second arm part is a wiper blade. As pivot drive for the first wiper arm part a first disc armature motor (40) is provided and as displacement drive for the second wiper arm part a second disc armature motor is provided. The first disc armature motor composes with a planetary gear (35) a coaxial drive unit in an axis (3). The planetary gear has a first gear component (37) fixed to the bodywork of the vehicle, a second gear component (38) fixed to the movable unit, a driven rotor (36), a peripheral surface unequally spaced to the axis and a transmission component (39) moved by the rotor.
Abstract:
The drive (25) has a rotating crank mechanism (35) with an eccentric rotor (36) rotating about a bearing shaft (3). An internally toothed drive ring (37) fixed w.r.t. the shaft bearing and an internally toothed driven ring (38) attached to the wiper arm (2,3,4) have a difference in numbers of teeth of one. A transmission element (39) is turned by the rotor and revolves in the driven and drive rings. The rotating crank mechanism is directly driven by higher speed motor at a reduced speed. This allows esp. a rotating disc motor to be used.
Abstract:
The windscreen (13) is wiped in both directions from its centre by an oscillatory arm with one part (12) sliding into and out of the other part (11). The two parts are driven by separately switchable motors (9,10) co-ordinated by a microprocessor (2). The pivot motor (9) is fitted with an angular position sensor (5), and the slide motor (10) has a displacement sensor (6). Each sensor is wired to a processing circuit (3;4) from which the microprocessor accepts signals and issues commands to the power stages (7,8) of the respective drives.