Patent ID: 6073504
Filing Date: 2000-06-13
Classification: B60J,E05F,E05Y,Y10T

Abstract:
In a motor transmission drive unit for a component movable between two end positions, the motor transmission drive unit comprising an end position recognition device, wherein:an electric motor is drive-connected to a reduction gear comprising at least one output shaft and one driveshaft;a takeup is rotatable by said driveshaft and rotatable around a rotation axis of said driveshaft, for performing end position recognition;a countertakeup is concentric with and rotatable about an axis of rotation that is offset and parallel to an axis of rotation of said driveshaft, whereby said takeup temporarily engages said countertakeup during each rotation of said takeup;the rotary movement of said countertakeup between the two end positions is no greater than 360.degree.;said output shaft is connected with said driveshaft via a first coupling connection and is axially displaceable relative to said driveshaft;said driveshaft is connected with an output gearwheel via a second coupling connection that uncouples by axial displacement of said driveshaft relative to said output gearwheel; andsaid second coupling connection comprises a bevel wheel toothing with meshing tooth flanks extending at an oblique angle relative to the rotation axis of said driveshaft.