Drive unit
Assigneefischer automotive systems GmbH & Co. KG
InventorUlf-Lothar BASTIAN
Life of this patent
Estimating the term…
Abstract
A drive unit includes a wheel distribution gear mechanism for pivoting, for example, blades of an air vent for guiding an air current out of the air vent into a passenger compartment of a motor vehicle. So as to be able to determine a rotational position of an output wheel of the wheel distribution gear mechanism, for example after a power failure, without a sensor, the invention provides a non-rotation block, which, when the wheel distribution gear mechanism is rotationally driven, reaches a blocking position in which this blocks the output wheel in a defined rotational position to prevent further rotation.
Claims9
A drive unit comprising a wheel distribution gear mechanism comprising a drive wheel, a first intermediate wheel, which is drivingly connected to the drive wheel so that the first intermediate wheel can be rotationally driven by the drive wheel, a first output wheel, which can be rotationally driven by the drive wheel via the first intermediate wheel, a first guide for the first intermediate wheel, which movably guides the first intermediate wheel on a circular path that is concentric with respect to an axis of rotation of the drive wheel so that, in a first driving position of the first intermediate wheel, the first output wheel can be rotationally driven by the drive wheel via the first intermediate wheel and, in a first idle position, the first output wheel is not drivingly connected to the first intermediate wheel, and the drive wheel, during rotation in a first direction of rotation, moves the first intermediate wheel into the first driving position and, during rotation in an opposite, second direction of rotation, into the first idle position, wherein the drive unit comprises a first non-rotation block for the first output wheel which, during the rotation in the first direction of rotation, is moved by the drive wheel into a blocking position, in which the first non-rotation block blocks the first output wheel in a defined rotational position to prevent further rotation.
Dependencies are inferred from the claim text.